CN100413471C - Latching of left auricular appendix and conveyor thereof - Google Patents
Latching of left auricular appendix and conveyor thereof Download PDFInfo
- Publication number
- CN100413471C CN100413471C CNB2004100599762A CN200410059976A CN100413471C CN 100413471 C CN100413471 C CN 100413471C CN B2004100599762 A CNB2004100599762 A CN B2004100599762A CN 200410059976 A CN200410059976 A CN 200410059976A CN 100413471 C CN100413471 C CN 100413471C
- Authority
- CN
- China
- Prior art keywords
- left atrial
- atrial appendage
- appendage occlusion
- occlusion device
- supporting network
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 208000007536 Thrombosis Diseases 0.000 claims abstract description 34
- 230000007246 mechanism Effects 0.000 claims abstract description 4
- 210000005248 left atrial appendage Anatomy 0.000 claims description 79
- 229910052751 metal Inorganic materials 0.000 claims description 14
- 239000002184 metal Substances 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 13
- 230000001012 protector Effects 0.000 claims description 10
- 238000011084 recovery Methods 0.000 claims description 10
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 7
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 7
- -1 polytetrafluoroethylene Polymers 0.000 claims description 6
- 229920000728 polyester Polymers 0.000 claims description 4
- 229920001296 polysiloxane Polymers 0.000 claims description 4
- KXDHJXZQYSOELW-UHFFFAOYSA-M Carbamate Chemical compound NC([O-])=O KXDHJXZQYSOELW-UHFFFAOYSA-M 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 229910001362 Ta alloys Inorganic materials 0.000 claims description 3
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 229910052715 tantalum Inorganic materials 0.000 claims description 3
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims description 3
- 229910052719 titanium Inorganic materials 0.000 claims description 3
- 239000010936 titanium Substances 0.000 claims description 3
- 239000012528 membrane Substances 0.000 claims description 2
- 206010008190 Cerebrovascular accident Diseases 0.000 abstract description 10
- 208000006011 Stroke Diseases 0.000 abstract description 10
- 230000001746 atrial effect Effects 0.000 abstract description 4
- 208000024891 symptom Diseases 0.000 abstract description 3
- 206010002383 Angina Pectoris Diseases 0.000 abstract 1
- 239000003146 anticoagulant agent Substances 0.000 description 11
- 229940127219 anticoagulant drug Drugs 0.000 description 11
- 230000000694 effects Effects 0.000 description 7
- 206010003658 Atrial Fibrillation Diseases 0.000 description 6
- 239000007943 implant Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- HLXZNVUGXRDIFK-UHFFFAOYSA-N nickel titanium Chemical compound [Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni] HLXZNVUGXRDIFK-UHFFFAOYSA-N 0.000 description 5
- 238000002560 therapeutic procedure Methods 0.000 description 5
- 239000004809 Teflon Substances 0.000 description 4
- 229920006362 Teflon® Polymers 0.000 description 4
- 210000002837 heart atrium Anatomy 0.000 description 4
- 208000005189 Embolism Diseases 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000002513 implantation Methods 0.000 description 3
- 229910001000 nickel titanium Inorganic materials 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- 229920004934 Dacron® Polymers 0.000 description 2
- 208000032843 Hemorrhage Diseases 0.000 description 2
- 208000001435 Thromboembolism Diseases 0.000 description 2
- HZEWFHLRYVTOIW-UHFFFAOYSA-N [Ti].[Ni] Chemical compound [Ti].[Ni] HZEWFHLRYVTOIW-UHFFFAOYSA-N 0.000 description 2
- 238000009954 braiding Methods 0.000 description 2
- 210000004556 brain Anatomy 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000010247 heart contraction Effects 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 229920000544 Gore-Tex Polymers 0.000 description 1
- 208000005228 Pericardial Effusion Diseases 0.000 description 1
- 206010034476 Pericardial haemorrhage Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 230000000747 cardiac effect Effects 0.000 description 1
- 230000004087 circulation Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000003238 esophagus Anatomy 0.000 description 1
- 201000002303 hemopericardium Diseases 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 229950000845 politef Drugs 0.000 description 1
- 230000002685 pulmonary effect Effects 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000001732 thrombotic effect Effects 0.000 description 1
Images
Landscapes
- Prostheses (AREA)
- Surgical Instruments (AREA)
Abstract
The present invention relates to a left atrial latching device and a conveyor, and the left atrial latching device comprises a supporting net capable of self-expansion and a clogging film coated with the supporting net, wherein the supporting net is provided with a near end and a far end; the near end is provided with a connection control mechanism controllably connected with the conveyor. The conveyor is orderly comprises an internal core, an internal warped tube and an external warped tube from interior to exterior, wherein the far end of the internal warped tube is provided with a thrombus protection device. When the external warped tube is withdrawn, the internal warped tube and the internal core keep still, and the thrombus protection device of the internal warped tube is unfolded to prevent thrombus. Compared with the prior art, the present invention has the advantages that the release of the latching device is controlled, and the operation is simple. When the latching device is withdrawn, the present invention prevents thrombus in a left atrial from flowing out, and thereby, the present invention prevents apoplexy, cardialgia and other symptoms from occurring.
Description
Technical field
The present invention relates to a kind of interventional medical device and carrier thereof, relate in particular to a kind of device and carrier thereof that stops the interior thrombosis of left auricle to flow into the atrium.
Background technology
Atrial fibrillation is that common heart beating rule is not normal, accounts for whole crowd's 0.4%.The irregular meeting of heart beating causes heart and blood circulation to have some setbacks, so that blood solidifies easily, when these clots flow to brain, can cause apoplexy, promptly is commonly called as apoplexy.
Anticoagulant therapy is the standard method of prevention atrial fibrillation apoplexy complication at present, and is significant.Yet there is certain limitation in anticoagulant therapy, as the part patient because of having the anticoagulant contraindication or relatively contraindication can not anticoagulant; The influence that anticoagulant is subject to medicine or food increases the monitoring trouble; Some patient can not adhere to anticoagulant therapy for a long time.In addition, anticoagulant therapy itself also has hemorrhage complication, and this makes the long-term anticoagulant of patient adhere to that rate is lower, and the effect of anticoagulant therapy performance is limited.Therefore, take the prevention of measure more safely and effectively atrial fibrillation apoplexy significant.
Because the blood vessel of the right heart is to lead to pulmonary, brain is led on the left side, therefore forms clot and then causes the situation of apoplexy only to appear at left auricle.Studies show that in the past, non-nonrheumatic atrial fibrillation patient's embolus 90%～100% derives from left auricle, and left auricle is the thrombotic main position of atrial fibrillation.Therefore, left auricle and body circulation are isolated the effect that can play the prevention thromboembolism.Cardiac operation excise simultaneously or closed left auricle simple, but for only being that surgery operating wound is bigger the closed left auricle, the stifled art of closing of percutaneous left auricle is then simple.The apparatus of developing at present is referred to as left atrial appendage occlusion device (PLAATO), can it be sent into left auricle by conduit behind atrial septal puncture.The stopper external form is the cage shape, is made by the self expandable Nitinol, covers one deck politef (PTEE) film outward, and film is supported by metal vaulting pole, and strut is attached on the strutbeam.This apparatus must be implanted under the esophagus ultrasonic guidance, and can be reclaimed fully.The implanted this PLAATO apparatus of 15 routine patients has been arranged now.All patients all have the chronic atrial fibrillation history, have the high-risk factor that apoplexy takes place at least, and the anticoagulant contraindication is arranged.All patients all successfully implant, and 1 example postpones to implant because of concurrent hemopericardium in implantation process first.There are not thromboembolism incident and late complication to take place between follow-up period.Further test well afoot.
Existing left atrial appendage occlusion device is a kind of good selection to there being severe haemorrhage dangerous patient and anticoagulant taboo patient.But existing left atrial appendage occlusion device exists to discharge and is difficult to control, and implants the drawback that locking device need calculate lead.And transmitting device is when carrying the left atrial appendage occlusion device, and often because of discharging the improper left atrial appendage occlusion device that needs back to remove, the interior thrombosis of left auricle this moment is easy to flow into the atrium and causes apoplexy.
In summary, the left atrial appendage occlusion device and the carrier thereof of described prior art on reality is used, obviously exist inconvenience and defective, so be necessary to be improved.
Summary of the invention
At above-mentioned defective, main purpose of the present invention is to provide a kind of left atrial appendage occlusion device, and its release can be controlled, and simple to operate.
Another object of the present invention is, a kind of above-mentioned left atrial appendage occlusion device delivery device that is used to carry is provided, and it not only can control the release of left atrial appendage occlusion device, and returning when removing this locking device, can prevent the outflow of thrombosis in the left auricle.
To achieve these goals, the invention provides a kind of left atrial appendage occlusion device, include:
One can self-expanding supporting network, it is provided with a near-end and a far-end, this near-end be provided with one can with the control of the carrier control connection structure of meeting sb. at the airport;
One shutoff film, this shutoff film coats described supporting network.
Left atrial appendage occlusion device of the present invention, wherein, the described control structure of meeting sb. at the airport is the hollow cylinder of an embedded screw thread.
Left atrial appendage occlusion device of the present invention, wherein, the meet sb. at the airport front end of structure of described control is provided with a recovery structure.
Left atrial appendage occlusion device of the present invention, wherein, described recovery structure is a barb.
This present invention left atrial appendage occlusion device, wherein, described shutoff film is made by the material with good biocompatibility.
Left atrial appendage occlusion device of the present invention, wherein, described shutoff membrane material is expanded PTFE, polyester, polytetrafluoroethylene, silicones, carbamate or biomembrane.
Left atrial appendage occlusion device of the present invention, wherein, it is interior or outer that described shutoff film is coated on described supporting network.
Left atrial appendage occlusion device of the present invention, wherein, described shutoff film is coated on whole or the part supporting network.
Left atrial appendage occlusion device of the present invention, wherein, described supporting network is cylindrical shape, lantern shape, half lantern shape, sacculus shape or double plate shape.
Left atrial appendage occlusion device of the present invention, wherein, described supporting network is by thread metal knitted forming.
Left atrial appendage occlusion device of the present invention, wherein, described supporting network is the integral structure that is formed by cut tubulose metal.
Left atrial appendage occlusion device of the present invention, wherein, described metal is marmem, rustless steel, cochrome, titanium, titanium alloy, tantalum or tantalum alloy.
Left atrial appendage occlusion device of the present invention, wherein, described supporting network is provided with anti-skid structure.
Left atrial appendage occlusion device of the present invention, wherein, described anti-skid structure is agnail or tip.
The present invention also provides a kind of left atrial appendage occlusion device delivery device, wherein, include inner core, inner sticking tube, outer sticking tube from inside to outside successively, the far-end of this inner core be provided with one with the meet sb. at the airport bindiny mechanism of structure control connection of the control of described supporting network, and the far-end of described inner sticking tube is provided with a thrombosis protector; Remove described outer sticking tube when returning, it is motionless that this inner sticking tube and inner core keep, and the thrombosis protector of inner sticking tube launches with the shutoff thrombosis.
Left atrial appendage occlusion device delivery device of the present invention, wherein, described thrombosis protector is a conical hopper.
Left atrial appendage occlusion device delivery device of the present invention, wherein, described conical hopper is metal net shaped or membranaceous.
Left atrial appendage occlusion device delivery device of the present invention, wherein, described syndeton is a peripheral hardware screw thread cylinder.
Left atrial appendage occlusion device of the present invention, by establishing a control structure of meeting sb. at the airport at its supporting network near-end, this control meet sb. at the airport structure and its carrier control connection make the release of locking device to control, and simple to operate, thereby can reach better inaccessible effect; Left atrial appendage occlusion device delivery device of the present invention; establish a thrombosis protector by the far-end that sticks up pipe within it; when need return when removing the left atrial appendage occlusion device, this thrombosis protector will launch and be close to the passage outside or the inwall of left auricle, thereby can prevent that thrombosis flows out in the left auricle.Whereby, when left atrial appendage occlusion device of the present invention and carrier thereof apply to that the percutaneous left auricle is stifled to close art, can effectively avoid thrombosis in the left auricle to flow into the atrium and cause the appearance of apoplexy, pained and other symptom.
In addition, the present invention adopts the material of inaccessible performance and good biocompatibility as the shutoff film, has improved the effect of thrombosis obturation; Supporting network of the present invention adopts strong elasticity and shape memory characteristic metal material, makes supporting network very tight with contacting of left auricle inwall; This supporting network has to such an extent that anti-skid structure designs, thereby plays advantages of good positioning effect; The near-end of this supporting network is provided with recovery structure, as overhead kick, makes that this locking device is recyclable, is a kind of permanent and interim integrated design.
Brief Description Of Drawings
Below in conjunction with accompanying drawing,, will make technical scheme of the present invention and other beneficial effect apparent by detailed description to preferred embodiment of the present invention.
In the accompanying drawing,
Fig. 1 is that the supporting network of left atrial appendage occlusion device of the present invention is the side view of the partial veil of cylindrical shape;
Fig. 2 is the front view of left atrial appendage occlusion device shown in Figure 1;
Fig. 3 is implanted to the interior state diagram of left auricle for left atrial appendage occlusion device shown in Figure 1;
Fig. 4 is that the supporting network of left atrial appendage occlusion device of the present invention is the side view of the total incapsulation of lantern shape;
Fig. 5 is that the supporting network of left atrial appendage occlusion device of the present invention is the side view of the partial veil of lantern shape;
Fig. 6 is the front view of the left atrial appendage occlusion device shown in Fig. 4,5;
Fig. 7 is implanted to the interior state diagram of left auricle for left atrial appendage occlusion device shown in Figure 5;
Fig. 8 is the side view of half lantern shape for the supporting network of left atrial appendage occlusion device of the present invention;
Fig. 9 is the front view of left atrial appendage occlusion device shown in Figure 8;
Figure 10 is implanted to the interior state diagram of left auricle for left atrial appendage occlusion device shown in Figure 8;
Figure 11 is the side view of sacculus shape for the supporting network of left atrial appendage occlusion device of the present invention;
Figure 12 is implanted to the interior state diagram of left auricle for left atrial appendage occlusion device shown in Figure 11;
Figure 13 is bidiscoidal side view for the supporting network of left atrial appendage occlusion device of the present invention;
Figure 14 is implanted to the interior state diagram of left auricle for left atrial appendage occlusion device shown in Figure 13;
Figure 15 A is the side view of left atrial appendage occlusion device delivery device of the present invention;
Figure 15 B is the M portion amplification view of Figure 15 A;
Figure 16～Figure 18 is transported to mode figure in the left auricle for left atrial appendage occlusion device of the present invention by carrier;
Figure 19 is the another kind of mode figure of the thrombosis protector of carrier of the present invention.
The specific embodiment
Hereinafter, will describe the present invention in detail.
Left atrial appendage occlusion device of the present invention, include one can self-expanding supporting network and coat the shutoff film of supporting network.This supporting network is provided with a near-end and a far-end, this near-end be provided with one the control meet sb. at the airport structure with the carrier control connection.
This supporting network can be formed by metal wire knitted, the also integral structure that forms by the metal tube cut, above-mentioned metal tube or material wiry can be shape memory metal (as Nitinol etc.), rustless steel, cochrome, titanium, titanium alloy, tantalum or tantalum alloy or the like, thereby have better elastic and biocompatibility.This shutoff film is made of the material with good biocompatibility, as expanded PTFE (is EPTFE, as Gortex), other polyester materials such as polyester (as Dacron), polytetrafluoroethylene (being PTFE), silicones (being Silicone), carbamate (being Urethane) or biomembrane as Teflon.And shutoff film of the present invention can be coated in the supporting network, also can be coated on outside the supporting network, and it can be all to encase supporting network, or part wraps on the supporting network.
Embodiment 1:
Extremely shown in Figure 2 as Fig. 1, the cylindrical shape supporting network 11 that forms by the cut Nitinol, the control of its near-end structure of meeting sb. at the airport is the hollow cylinder 13 of an embedded screw thread 14, can realize being threaded with carrier, so carrier can discharge the left atrial appendage occlusion device by the rotation helicitic texture, thereby can launch very stably, can not produce any preshoot; And the meet sb. at the airport front end of structure of this control also is provided with and has an overhead kick 15 as recovery structure, can also regain when the malposition that locking device discharges, so be a kind of device of controllable release, described recovery structure also can be a ring body.And shutoff film 12 adopts Teflon as material, and partly is coated on the supporting network 11.
This supporting network 11 has good proper alignment, and the structure of S shape is adopted at two ends, is similar to two springs, makes that supporting network 11 expansion characters are very good, as shown in Figure 3, can with firm the contacting of left auricle 100 inwalls.Simultaneously, all have an agnail 16 as anti-skid structure on the straight thick stick of these supporting network 11 intermediary each bars, certainly, also can adopt structures such as tip as anti-skid structure, implant in the process of left auricle 100 at this locking device, can penetrate into gradually in left auricle 100 inwalls, avoided the displacement possibility.。
Embodiment 2:
As Fig. 4～shown in Figure 6, by the lantern shape supporting network 21 that the cut Nitinol forms, the control of its near-end structure of meeting sb. at the airport is the hollow cylinder 23 of an embedded screw thread, can realize being threaded with carrier; And the meet sb. at the airport front end of structure of this control also is provided with and has an overhead kick 25 as recovery structure.Shutoff film 22 adopts Teflon as material, and this shutoff film 22 can be coated on (as shown in Figure 4) on the supporting network 21 entirely, also can partly be coated on (as shown in Figure 5) on the supporting network 21, and it can effectively stop passing through of thrombosis.
This lantern shape supporting network 21 has good proper alignment, and expansion character is very good, can with firm the contacting of left auricle 100 inwalls, as shown in Figure 7, have the effect of inaccessible big thrombosis.Simultaneously, all have an agnail 26 on the straight thick stick of these supporting network 21 intermediary each bars.Implant in the process of left auricle 100 at this locking device, can penetrate into gradually in left auricle 100 inwalls, avoided the displacement possibility.
Embodiment 3:
As Fig. 8～shown in Figure 9, by the half lantern shape supporting network 31 that the cut Nitinol forms, the control of its near-end structure of meeting sb. at the airport is the hollow cylinder 33 of an embedded screw thread, can realize being threaded with carrier; And the meet sb. at the airport front end of structure of this control also is provided with and has an overhead kick 35 as recovery structure.Shutoff film 32 adopts Teflon also partly to be coated on the supporting network 31 as material, and it can effectively stop passing through of thrombosis.
This half lantern shape supporting network 31 has good proper alignment, and expansion character is very good, can with firm the contacting of left auricle 100 inwalls, as shown in figure 10, have the effect of inaccessible big thrombosis.Simultaneously, the rear end of the straight thick stick of these supporting network 31 intermediary each bars all has an agnail 36.Implant in the process of left auricle 100 at this locking device, can penetrate into gradually in left auricle 100 inwalls, avoided the displacement possibility.
Embodiment 4:
As shown in figure 11, by the sacculus shape supporting network 41 that titanium-nickel wire braiding forms, the control of its near-end structure of meeting sb. at the airport is the hollow cylinder 43 of an embedded screw thread, can realize being threaded with carrier; Shutoff film 42 adopts biomembrane also to be coated on entirely on the supporting network 41 as material, and it can effectively stop passing through of thrombosis.This sacculus shape supporting network 41 has good proper alignment, as shown in figure 12, can left auricle 100 supports are big after the far-end of supporting network 41 expands, make the left auricle 100 inwall combinations securely of this device.
Embodiment 5:
As shown in figure 13, by the double plate shape supporting network 51 that titanium-nickel wire braiding forms, the control of its near-end structure of meeting sb. at the airport is the hollow cylinder 53 of an embedded screw thread, can realize being threaded with carrier; Shutoff film 52 adopts Dacron also to be coated on entirely on the supporting network 51 as material, and it can effectively stop passing through of thrombosis.This double plate shape supporting network 51 has good proper alignment, and as shown in figure 14, the disk at supporting network 51 two ends tilts inwards, can guarantee closely to combine with left auricle 100 inwalls.
The present invention also provides a kind of left atrial appendage occlusion device delivery device that is used to carry, and shown in Figure 15 A and Figure 15 B, it comprises inner core 81, inner sticking tube 82 and outer sticking tube 83 from inside to outside.The far-end of this inner core 81 is provided with a bindiny mechanism---and the cylinder 85 of peripheral hardware screw thread is threaded with the controlling organization of supporting network near-end with realization.The far-end of this inner sticking tube 82 is provided with a thrombosis protector---conical hopper 84, and this conical hopper 84 can be metal net shaped or membranaceous.The far-end of carrier returns and removes outer sticking tube 83 after left atrial appendage occlusion device 90 is delivered to appropriate location in the left auricle, and inner core 81 and inner sticking tube 82 keep motionless.At this moment, the funnel 84 of inner sticking tube 82 far-ends is just upheld gradually and is come, as Figure 16～shown in Figure 180, and against the outside of left auricle 100 passages, but shutoff left auricle 100 rotates screw device again and to promote inner core 81 left atrial appendage occlusion device 90 is sent in the left auricle 100 in case its interior thrombosis flows out.In addition, as shown in figure 19, unfolded conical hopper 84 also can be resisted against left auricle 100 inwalls, flows out to prevent the thrombosis in the left auricle 100.
Left atrial appendage occlusion device implantation process of the present invention is as follows, please refer to Figure 16～Figure 19:
At first, this left atrial appendage occlusion device 90 is threaded with carrier, and supporting network and shutoff mould are contracted in the inner sticking tube 82 that places carrier, again locking device 90 is implanted left auricle 100 correct positions.
Then, return the outer sticking tube 83 of removing carrier, and inner core 81 and inner sticking tube 82 keep motionless, at this moment, the funnel 84 of inner sticking tube 82 far-ends is just upheld gradually and is come, and is resisted against on the outside or inwall of left auricle 100 passages.
Then, utilize the rotation helicitic texture to promote the inner core 81 of carrier, left atrial appendage occlusion device 90 is discharged into appropriate location in the left auricle 100, the supporting network of locking device 90 may be also bigger than left auricle 100 access roades after expanding automatically at this moment, thereby fit tightly with left auricle 100 inwalls; It also can be deep into left auricle 100 inwalls by the anti-skid structure (as agnail) that is provided with on the supporting network, to play positioning action.
At last, recall carrier, then implantation process finishes.
What deserves to be mentioned is, before if left atrial appendage occlusion device 90 discharges, find malposition, because the supporting network of locking device 90 is provided with recovery structure (as barb), so can utilize carrier that it is regained outward, discharge this locking device 90 again after waiting to deliver to the tram.At this moment, because the funnel 84 of inner sticking tube 82 far-ends of carrier is near on the outside or inwall of living left auricle 100 passages, thrombosis flow out in the left auricle 100 so return in the time of can preventing effectively when removing that the left atrial appendage occlusion device from removing for 90 times.
In summary, left atrial appendage occlusion device of the present invention, by establishing a control structure of meeting sb. at the airport at its supporting network near-end, this control meet sb. at the airport structure and its carrier control connection make the release of locking device to control, and simple to operate; Left atrial appendage occlusion device delivery device of the present invention is established a thrombosis protector by the far-end that sticks up pipe within it, can prevent that when need return thrombosis flows out in the left auricle when removing the left atrial appendage occlusion device.Whereby, when left atrial appendage occlusion device of the present invention and carrier thereof apply to that the percutaneous left auricle is stifled to close art, can effectively avoid thrombosis in the left auricle to flow into the atrium and cause the appearance of apoplexy, pained and other symptom.
Be understandable that; for the person of ordinary skill of the art; can make other various corresponding changes and distortion according to technical scheme of the present invention and technical conceive, and all these changes and distortion all should belong to the protection domain of accompanying Claim of the present invention.
Claims (17)
1. carry left atrial appendage occlusion device delivery device for one kind, wherein the left atrial appendage occlusion device comprises:
One can self-expanding supporting network, it is provided with a near-end and a far-end, this near-end be provided with one can with the control of the carrier control connection structure of meeting sb. at the airport;
One shutoff film, this shutoff film coats described supporting network;
It is characterized in that described carrier includes inner core, inner sticking tube, outer sticking tube from inside to outside successively, the far-end of this inner core be provided with one with the meet sb. at the airport bindiny mechanism of structure control connection of the control of the described supporting network that is coated by the shutoff film, and the far-end of described inner sticking tube is provided with a thrombosis protector; Remove described outer sticking tube when returning, it is motionless that this inner sticking tube and inner core keep, and the thrombosis protector of inner sticking tube launches with the shutoff thrombosis.
2. conveying left atrial appendage occlusion device delivery device according to claim 1 is characterized in that, the described control structure of meeting sb. at the airport is the hollow cylinder of an embedded screw thread.
3. conveying left atrial appendage occlusion device delivery device according to claim 1 and 2 is characterized in that, the meet sb. at the airport front end of structure of described control is provided with a recovery structure.
4. conveying left atrial appendage occlusion device delivery device according to claim 3 is characterized in that described recovery structure is a barb.
5. conveying left atrial appendage occlusion device delivery device according to claim 1 is characterized in that described shutoff film is made by the material with good biocompatibility.
6. conveying left atrial appendage occlusion device delivery device according to claim 5 is characterized in that described shutoff membrane material is expanded PTFE, polyester, polytetrafluoroethylene, silicones, carbamate or biomembrane.
7. conveying left atrial appendage occlusion device delivery device according to claim 1 is characterized in that, it is interior or outer that described shutoff film is coated on described supporting network.
8. conveying left atrial appendage occlusion device delivery device according to claim 1 is characterized in that described shutoff film is coated on whole or the part supporting network.
9. conveying left atrial appendage occlusion device delivery device according to claim 1 is characterized in that, described supporting network is cylindrical shape, lantern shape, half lantern shape, sacculus shape or double plate shape.
10. conveying left atrial appendage occlusion device delivery device according to claim 1 is characterized in that described supporting network is by thread metal knitted forming.
11. conveying left atrial appendage occlusion device delivery device according to claim 1 is characterized in that described supporting network is the integral structure that is formed by cut tubulose metal.
12., it is characterized in that described metal is marmem, rustless steel, cochrome, titanium, titanium alloy, tantalum or tantalum alloy according to claim 10 or 11 described conveying left atrial appendage occlusion device delivery devices.
13. conveying left atrial appendage occlusion device delivery device according to claim 1 is characterized in that described supporting network is provided with anti-skid structure.
14. conveying left atrial appendage occlusion device delivery device according to claim 13 is characterized in that described anti-skid structure is agnail or tip.
15. carrier according to claim 1 is characterized in that, described thrombosis protector is a conical hopper.
16., it is characterized in that described conical hopper is metal net shaped or membranaceous according to the described conveying left atrial appendage occlusion of claim 15 device delivery device.
17. conveying left atrial appendage occlusion device delivery device according to claim 1 is characterized in that described bindiny mechanism is the cylinder of a peripheral hardware screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100599762A CN100413471C (en) | 2004-06-25 | 2004-06-25 | Latching of left auricular appendix and conveyor thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100599762A CN100413471C (en) | 2004-06-25 | 2004-06-25 | Latching of left auricular appendix and conveyor thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1711978A CN1711978A (en) | 2005-12-28 |
| CN100413471C true CN100413471C (en) | 2008-08-27 |
Family
ID=35717890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100599762A Expired - Lifetime CN100413471C (en) | 2004-06-25 | 2004-06-25 | Latching of left auricular appendix and conveyor thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100413471C (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11857441B2 (en) | 2018-09-04 | 2024-01-02 | 4C Medical Technologies, Inc. | Stent loading device |
| US11931253B2 (en) | 2020-01-31 | 2024-03-19 | 4C Medical Technologies, Inc. | Prosthetic heart valve delivery system: ball-slide attachment |
| US11944537B2 (en) | 2017-01-24 | 2024-04-02 | 4C Medical Technologies, Inc. | Systems, methods and devices for two-step delivery and implantation of prosthetic heart valve |
| US11957577B2 (en) | 2017-01-19 | 2024-04-16 | 4C Medical Technologies, Inc. | Systems, methods and devices for delivery systems, methods and devices for implanting prosthetic heart valves |
| US11992403B2 (en) | 2020-03-06 | 2024-05-28 | 4C Medical Technologies, Inc. | Devices, systems and methods for improving recapture of prosthetic heart valve device with stent frame having valve support with inwardly stent cells |
| US12029647B2 (en) | 2017-03-07 | 2024-07-09 | 4C Medical Technologies, Inc. | Systems, methods and devices for prosthetic heart valve with single valve leaflet |
| US12036113B2 (en) | 2017-06-14 | 2024-07-16 | 4C Medical Technologies, Inc. | Delivery of heart chamber prosthetic valve implant |
| US12053375B2 (en) | 2020-03-05 | 2024-08-06 | 4C Medical Technologies, Inc. | Prosthetic mitral valve with improved atrial and/or annular apposition and paravalvular leakage mitigation |
| US12133797B2 (en) | 2020-01-31 | 2024-11-05 | 4C Medical Technologies, Inc. | Prosthetic heart valve delivery system: paddle attachment feature |
| US12232991B2 (en) | 2019-04-15 | 2025-02-25 | 4C Medical Technologies, Inc. | Loading systems for collapsible prosthetic heart valve devices and methods thereof |
| US12544226B2 (en) | 2019-02-14 | 2026-02-10 | 4C Medical Technologies, Inc. | Hydrophilic skirt for paravalvular leak mitigation and fit and apposition optimization for prosthetic heart valve implants |
| US12582520B2 (en) | 2023-03-24 | 2026-03-24 | 4C Medical Technologies, Inc. | Implant delivery |
| US12588998B1 (en) | 2022-09-01 | 2026-03-31 | 4C Medical Technologies, Inc. | Prosthetic heart valve for natural blood flow |
Families Citing this family (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100444811C (en) * | 2006-01-16 | 2008-12-24 | 孔祥清 | Left atrial appendage occluder capable of automatic positioning in the left atrial appendage |
| CN101049267B (en) * | 2006-04-03 | 2010-12-22 | 孟坚 | medical occlusive device |
| CN100453053C (en) * | 2006-04-21 | 2009-01-21 | 先健科技(深圳)有限公司 | Device for ligating left atrial appendage and method of use thereof |
| US20090171386A1 (en) | 2007-12-28 | 2009-07-02 | Aga Medical Corporation | Percutaneous catheter directed intravascular occlusion devices |
| US9381006B2 (en) * | 2009-06-22 | 2016-07-05 | W. L. Gore & Associates, Inc. | Sealing device and delivery system |
| CN101961255A (en) * | 2010-09-28 | 2011-02-02 | 中国人民解放军第二军医大学 | Asymmetric bidiscoidal left atrial appendage occlusion device |
| CN102028510B (en) * | 2010-12-22 | 2012-07-25 | 乐普（北京）医疗器械股份有限公司 | Conveyor device |
| CN102805654B (en) | 2011-06-01 | 2014-04-02 | 先健科技(深圳)有限公司 | Occluder for left auricle |
| US8764787B2 (en) * | 2011-06-17 | 2014-07-01 | Aga Medical Corporation | Occlusion device and associated deployment method |
| CN103110444A (en) * | 2013-01-22 | 2013-05-22 | 陈平根 | Biodegradable fabric body capable of being developed and conveying device |
| WO2014127641A1 (en) * | 2013-02-19 | 2014-08-28 | 湖南埃普特医疗器械有限公司 | Left atrial appendage plugging device and delivery system |
| CN103099652B (en) * | 2013-02-19 | 2015-08-12 | 湖南埃普特医疗器械有限公司 | A kind of left atrial appendage occlusion device and a kind of induction system |
| CN103598902B (en) * | 2013-11-14 | 2017-01-25 | 先健科技(深圳)有限公司 | Left aurcle plugging device |
| US10258343B2 (en) | 2014-01-27 | 2019-04-16 | Lifetech Scientific (Shenzhen) Co. Ltd. | Left atrial appendage occluder |
| CN104306040B (en) * | 2014-10-09 | 2017-04-26 | 上海形状记忆合金材料有限公司 | Left atrial appendage plugging device |
| CN106308974B (en) * | 2015-06-30 | 2018-08-03 | 先健科技(深圳)有限公司 | Filter |
| CN106901792B (en) | 2015-12-29 | 2019-11-01 | 深圳市科奕顿生物医疗科技有限公司 | Occluder for left auricle |
| CN106923886B (en) * | 2015-12-31 | 2022-04-22 | 先健科技(深圳)有限公司 | Left atrial appendage occluder |
| CN106344082B (en) * | 2016-09-28 | 2019-01-25 | 宁波迪创医疗科技有限公司 | A kind of left ventricle capacity-reduction device |
| CN108013951B (en) * | 2016-11-02 | 2021-06-04 | 先健科技(深圳)有限公司 | Filter device |
| CN108125729B (en) * | 2016-12-01 | 2020-10-27 | 先健科技(深圳)有限公司 | filter |
| CN108143518B (en) * | 2016-12-06 | 2020-10-27 | 先健科技(深圳)有限公司 | filter |
| CN115212370A (en) * | 2021-04-14 | 2022-10-21 | 杭州诺生医疗科技有限公司 | Diverting device and diverting system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1342056A (en) * | 1998-11-06 | 2002-03-27 | 阿普利瓦医学股份有限公司 | Methods and devices for left atrial appendage occlusion |
| CN1399531A (en) * | 1999-10-27 | 2003-02-26 | 阿特里泰克公司 | Barrier device for ostium of left atrial appendage |
| WO2003063732A2 (en) * | 2002-01-25 | 2003-08-07 | Atritech, Inc. | Atrial appendage blood filtration systems |
-
2004
- 2004-06-25 CN CNB2004100599762A patent/CN100413471C/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1342056A (en) * | 1998-11-06 | 2002-03-27 | 阿普利瓦医学股份有限公司 | Methods and devices for left atrial appendage occlusion |
| CN1399531A (en) * | 1999-10-27 | 2003-02-26 | 阿特里泰克公司 | Barrier device for ostium of left atrial appendage |
| WO2003063732A2 (en) * | 2002-01-25 | 2003-08-07 | Atritech, Inc. | Atrial appendage blood filtration systems |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11957577B2 (en) | 2017-01-19 | 2024-04-16 | 4C Medical Technologies, Inc. | Systems, methods and devices for delivery systems, methods and devices for implanting prosthetic heart valves |
| US12599481B2 (en) | 2017-01-19 | 2026-04-14 | 4C Medical Technologies, Inc. | Systems, methods and devices for delivery systems, methods and devices for implanting prosthetic heart valves |
| US11944537B2 (en) | 2017-01-24 | 2024-04-02 | 4C Medical Technologies, Inc. | Systems, methods and devices for two-step delivery and implantation of prosthetic heart valve |
| US12029647B2 (en) | 2017-03-07 | 2024-07-09 | 4C Medical Technologies, Inc. | Systems, methods and devices for prosthetic heart valve with single valve leaflet |
| US12036113B2 (en) | 2017-06-14 | 2024-07-16 | 4C Medical Technologies, Inc. | Delivery of heart chamber prosthetic valve implant |
| US11857441B2 (en) | 2018-09-04 | 2024-01-02 | 4C Medical Technologies, Inc. | Stent loading device |
| US12544226B2 (en) | 2019-02-14 | 2026-02-10 | 4C Medical Technologies, Inc. | Hydrophilic skirt for paravalvular leak mitigation and fit and apposition optimization for prosthetic heart valve implants |
| US12232991B2 (en) | 2019-04-15 | 2025-02-25 | 4C Medical Technologies, Inc. | Loading systems for collapsible prosthetic heart valve devices and methods thereof |
| US11931253B2 (en) | 2020-01-31 | 2024-03-19 | 4C Medical Technologies, Inc. | Prosthetic heart valve delivery system: ball-slide attachment |
| US12133797B2 (en) | 2020-01-31 | 2024-11-05 | 4C Medical Technologies, Inc. | Prosthetic heart valve delivery system: paddle attachment feature |
| US12053375B2 (en) | 2020-03-05 | 2024-08-06 | 4C Medical Technologies, Inc. | Prosthetic mitral valve with improved atrial and/or annular apposition and paravalvular leakage mitigation |
| US11992403B2 (en) | 2020-03-06 | 2024-05-28 | 4C Medical Technologies, Inc. | Devices, systems and methods for improving recapture of prosthetic heart valve device with stent frame having valve support with inwardly stent cells |
| US12453630B2 (en) | 2020-03-06 | 2025-10-28 | 4C Medical Technologies, Inc. | Devices, systems and methods for improving recapture of prosthetic heart valve device with stent frame having valve support with inwardly stent cells |
| US12588998B1 (en) | 2022-09-01 | 2026-03-31 | 4C Medical Technologies, Inc. | Prosthetic heart valve for natural blood flow |
| US12594164B1 (en) | 2022-09-01 | 2026-04-07 | 4C Medical Technologies, Inc. | Prosthetic heart valve for natural blood flow |
| US12582520B2 (en) | 2023-03-24 | 2026-03-24 | 4C Medical Technologies, Inc. | Implant delivery |
| US12588989B2 (en) | 2023-03-24 | 2026-03-31 | 4C Medical Technologies, Inc. | Implant delivery |
| US12588988B2 (en) | 2023-03-24 | 2026-03-31 | 4C Medical Technologies, Inc. | Implant delivery |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1711978A (en) | 2005-12-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100413471C (en) | Latching of left auricular appendix and conveyor thereof | |
| CN110536657B (en) | Shunts used to redistribute blood volume in the atria | |
| CN104958087B (en) | A kind of occluder for left auricle | |
| CN112822991B (en) | Implants for the treatment and/or replacement of heart valves | |
| CN105054985B (en) | An Improved Left Atrial Appendage Occluder | |
| US20050234540A1 (en) | Dilatation systems and methods for left atrial appendage | |
| CN109069268B (en) | Treatment of tricuspid insufficiency | |
| EP1781186B1 (en) | Ventricular partitioning device | |
| JP6689868B2 (en) | Aortic implant | |
| CN104470579B (en) | Artificial kidney valve | |
| US20120323270A1 (en) | Left atrial appendage occluder | |
| US8597225B2 (en) | Method for increasing blood flow in or about a cardiac or other vascular or prosthetic structure to prevent thrombosis | |
| US6551303B1 (en) | Barrier device for ostium of left atrial appendage | |
| CN112773559B (en) | A new type of stent graft | |
| US20030105384A1 (en) | Method of improving cardiac function using a porous membrane | |
| JP2007504888A (en) | Device and method for preventing thrombus formation in the left atrial appendage | |
| JP2018525206A (en) | Artificial vein valve | |
| US7806846B2 (en) | Restoration of flow in LAA via tubular conduit | |
| CN104023646A (en) | Medical occlusion device | |
| KR20100131445A (en) | Atrial septal defect closure device | |
| CN211325322U (en) | A kind of interlayer rupture sealing system | |
| JP7420858B2 (en) | Selectively disassembleable implantable device | |
| CN106510777A (en) | Atrial shunt | |
| WO2021128939A1 (en) | Dissection rupture occlusion system | |
| CN101491465A (en) | Blood vessel filter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080827 |
|
| CX01 | Expiry of patent term |