CN209864183U - Double-stent implantation device with bendable distal end in visible state - Google Patents

Abstract

The utility model discloses a double-support implantation device with bendable far end under visual state, which comprises an inner tube, a middle tube and an outer tube which are arranged from inside to outside in sequence, wherein the far end of the inner tube is connected with a bendable soft head in an inserting way, a first support is compressed in the space between the outer tube and the inner tube, and two ends of the first support are respectively butted with the near end of the bendable soft head and the far end of the middle tube; a short push pipe is sleeved between the middle pipe and the inner pipe, a second support is compressed in a space between the middle pipe and the inner pipe, and two ends of the second support are abutted with the far end of the middle pipe and the far end of the short push pipe; an electronic camera lens with an LED light source is arranged in the bendable soft head, operating wires for controlling the bending of the bendable soft head are symmetrically connected to the bendable soft head, the operating wires penetrate through the inner tube and extend out, and the bendable soft head can be driven to bend by pulling the operating wires. The utility model discloses accessible human chamber says bent angle department and can once only release two supports under visual state.

Description

Double-stent implantation device with bendable distal end in visible state

Technical Field

The utility model relates to a device is implanted to the support in medical instrument field especially relates to a device is implanted to distal end flexible double stent under visual state.

Background

Interventional therapy is a new subject integrating image diagnosis and clinical therapy, and since interventional devices are guided into human body focuses through natural ducts or tiny wounds of the human body under the guidance of image equipment for minimally invasive therapy, the interventional therapy has the advantages of accuracy, safety, high efficiency, wide adaptation diseases, few complications, small wounds, rapid postoperative recovery and the like, becomes a preferred treatment method for some diseases, and becomes one of three clinical supporting subjects parallel to the traditional internal and external subjects. The common implanting device enters the bend of the human body cavity and can not continuously pass through the bend, thereby causing great operation risk or operation failure.

Therefore, there is a need to solve the above problems.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: the utility model aims at providing a can pass through two supports of human chamber way bent angle department and disposable release smoothly under visual state, the distal end flexible double-stent implantation device under the visual state that makes the operation can go on safely high-efficiently smoothly.

The technical scheme is as follows: in order to achieve the purpose, the utility model discloses a double-stent implantation device with a bendable far end in a visible state, which comprises an inner tube, a middle tube and an outer tube which are arranged in sequence from inside to outside, wherein the far end of the inner tube is connected with a bendable soft head in an inserting way, a first stent is compressed in a space between the outer tube and the inner tube, and two ends of the first stent are respectively butted with the near end of the bendable soft head and the far end of the middle tube; a short push pipe is sleeved between the middle pipe and the inner pipe, a second support is compressed in a space between the middle pipe and the inner pipe, and two ends of the second support are abutted with the far end of the middle pipe and the far end of the short push pipe; the outer pipe can move back and forth relative to the middle pipe, and the outer pipe is withdrawn or the middle pipe and the inner pipe move forward together, so that the first support is released from the space between the outer pipe and the inner pipe and restores to the original state; after the first support is released, the short push pipe moves forwards, and the second support is pushed into the space between the outer pipe and the inner pipe to replace the first support; an electronic camera lens with an LED light source is arranged in the bendable soft head, operating wires for controlling the bending of the bendable soft head are symmetrically connected to the bendable soft head, the operating wires penetrate through the inner tube and extend out, and the bendable soft head can be driven to bend by pulling the operating wires; the bendable soft head comprises a soft head part and a columnar bendable connecting part, and a plurality of grooves are uniformly formed in the outer wall of the columnar bendable connecting part to form a plurality of connecting discs; the far end of the operating wire is fixedly connected with the soft head part and sequentially penetrates through the connecting disc; the soft head part and the columnar bendable connecting part are integrally formed; the near end of the outer pipe is connected with a front handle, and the outer pipe can move back and forth along the outer wall of the middle pipe under the driving of the front handle; the near ends of the middle pipe and the inner pipe are connected with a rear handle, and the middle pipe and the inner pipe can move back and forth along the inner wall of the outer pipe together under the driving of the rear handle; the operation wire penetrates through the inner tube and is fixedly connected with an operation button arranged on the rear handle, the operation button can move back and forth along the rear handle, and meanwhile the operation wire is pulled to drive the bendable soft head to deform and bend on one side.

Furthermore, the rear handle is connected with a liquid injection joint which is communicated with the inner tube.

Furthermore, the inner wall of the far end of the middle pipe is provided with a stop block.

Preferably, the short push pipe is provided with a boosting ring extending out of the outer pipe, and the middle pipe and the outer pipe are respectively provided with a boosting sliding groove corresponding to the boosting ring.

Furthermore, a boosting steel pipe is sleeved between the middle pipe and the inner pipe.

Furthermore, the inner tube is the multi-chamber pipe, and its inside seal wire passageway, operation silk passageway and notes liquid passageway have, flexible soft overhead seal wire hole, the notes liquid hole that is linked together with annotating the liquid passageway, the operation silk connecting hole that is linked together with the operation silk passageway that is linked together of seting up with seal wire passageway to and the connecting hole that is connected with the inner tube.

Has the advantages that: compared with the prior art, the utility model has the advantages of it is following: firstly, when the patient can not pass through the human body cavity bend angle smoothly in the operation, the utility model discloses the design that the flexible soft head unilateral is crooked and take the light source electron camera are driven to the flexible double-support implantation device of distal end under the visual state utilizes the operating wire, can carry on under the visual state through operating button control flexible soft head turn thus pass through the human body cavity bend angle smoothly, can continue to carry on this apparatus or assist other apparatuses to carry on the apparatus operation through this bend angle; the utility model greatly simplifies the operation difficulty and perforation risk when the instrument passes through the human body cavity bend angle, saves the operation time, improves the operation safety, is suitable for the interventional image treatment and examination of the alimentary canal and the respiratory tract; secondly, the inner tube of the utility model is designed into a multi-cavity tube, which changes the traditional interventional therapy, needs to repeatedly and alternately replace various instruments in the operation process, has long time and high difficulty, is easy to generate malignant medical accidents such as perforation and the like; the intervention operation is greatly simplified, the operation safety is improved, the using amount of instruments is reduced, and the medical expense of patients is further reduced; furthermore, the utility model can release two supports at one time, greatly shorten the time of the support release operation, and reduce the pain and infection probability of the patient caused by the secondary in and out of the implanter.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic end view of the inner tube of the present invention;

FIG. 3 is a schematic cross-sectional view of the bendable soft head of the present invention;

FIG. 4 is a schematic end view of the bendable soft head of the present invention;

fig. 5 is a partial schematic view of the middle short push tube and the middle tube of the present invention.

Detailed Description

The technical solution of the present invention will be further explained with reference to the accompanying drawings.

As shown in fig. 1, the utility model relates to a device is implanted to flexible double stent in distal end under visual state, including inner tube 1, well pipe 2, outer tube 3, flexible soft head 4, first support 5, short ejector sleeve 6, second support 7, operating wire 8, front handle 9, back handle 10, annotate liquid joint 11, operating button 12, boosting steel pipe 13, electronic camera lens 14 and electrical apparatus joint 15. The inner tube 1, the middle tube 2 and the outer tube 3 of the utility model are arranged from inside to outside in sequence, a first bracket 5 is compressed in the space between the outer tube 3 and the inner tube 1, and the two ends of the first bracket 5 are respectively butted with the near end of the flexible soft head 4 and the far end of the middle tube 2; the near end of the outer tube 3 is connected with a front handle 9 which can move back and forth along the outer wall of the middle tube 2 under the drive of the front handle 9; the near ends of the middle tube 2 and the inner tube 1 are connected with a rear handle 10, and the middle tube and the inner tube can move back and forth along the inner wall of the outer tube 3 under the drive of the rear handle 10; the outer tube 3 is withdrawn or the middle tube 2 and the inner tube 1 are advanced together so that the first stent 5 is released from the space between the outer tube 3 and the inner tube 1 and is restored to the original state. A short push pipe 6 is sleeved between the middle pipe 2 and the inner pipe 1, a boosting ring 601 extending out of the outer pipe is arranged on the short push pipe 6, and boosting chutes corresponding to the boosting ring 601 are respectively arranged on the middle pipe 2 and the outer pipe 3. A second bracket 7 is compressed in the space between the middle pipe 2 and the inner pipe 1, and two ends of the second bracket 7 are abutted with the far end of the middle pipe 2 and the far end of the short push pipe 6; after the first support 5 is released, the boosting ring 601 is pushed forwards along the boosting sliding groove, the short pushing pipe 6 moves forwards, and the second support 7 is pushed into the space between the outer pipe 3 and the inner pipe 1 to replace the first support 5; the action of releasing the first stent 5 is repeated and the second stent 7 can be released again. The inner wall thickness of well pipe 2 differs, and the wall thickness that is equipped with second support and short ejector sleeve 6 department in well pipe 2 is thinner, and the cover is equipped with boosting steel pipe 13 between the back half section of well pipe 2 and the inner tube 1, and boosting steel pipe 13 is used for strengthening well pipe 2 and the intensity of inner tube 1 to when being convenient for release first support 5 from outer tube 3, well pipe 2 and inner tube 1 provide sufficient holding power and do not take place the bending. The inner wall of the far end of the middle pipe 2 is provided with a stop block 201, and in the process of releasing the first support 5, when the middle pipe is pushed forwards, the stop block 201 can prevent the second support 7 from sliding out of the middle pipe, as shown in fig. 5.

The outer pipe of the utility model is made of polytetrafluoroethylene material; the length can be made to different preferred lengths according to different needs for breathing, digestive tract, etc. The outer tube is used for cooperating with the flexible soft head to pass through the cavity of the human body together, so that other instruments or parts can pass through the required part smoothly. The middle tube of the utility model is used for pushing out the bracket in the outer tube to reach the lesion part of the natural cavity of the human body. The front handle is used for holding the part of an operator in the process of the implanter entering the human body cavity. As shown in fig. 2, the inner tube 1 of the present invention is a multi-lumen tube, and has a guide wire channel 101, an operation wire channel 102, a liquid injection channel 103, and an electronic wire channel 104 therein, wherein the number of the operation wire channels 102 is 2. The rear handle is used for pushing out the force application point of the stent, and each cavity in the inner tube needs to be connected with other instruments through the rear handle. The rear handle 10 is connected with a liquid injection joint 11, and the liquid injection joint 11 is communicated with a liquid injection channel 103 of the inner tube 1; the rear handle 10 is connected with an electrical connector 15, the electrical connector 15 is communicated with the electronic wire channel 104 of the inner tube 1 and is electrically connected with the electronic camera lens 14, and images shot by the electronic camera lens are transmitted to external equipment, so that visual operation is facilitated.

As shown in fig. 3 and 4, the distal end of the inner tube 1 of the present invention is inserted and connected with a flexible soft head 4, and the flexible soft head 4 is symmetrically connected with an operation wire 8 for controlling the bending thereof. The flexible soft head 4 comprises a soft head part 401 and a columnar flexible connecting part 402, wherein the outer wall of the columnar flexible connecting part 402 is uniformly provided with a plurality of grooves and a plurality of connecting discs 403; the distal end of the operating wire 8 is fixedly connected with the soft head 401 and passes through the connecting disc 403 in turn. Wherein the soft head portion 401 and the columnar bendable connecting portion 402 can be integrally formed, and the electronic camera lens 14 is disposed in the soft head portion 401. The flexible soft head 4 is provided with a guide wire hole 404 communicated with the guide wire passage 101, an injection hole 405 communicated with the injection passage 103, an operation wire connecting hole 406 communicated with the operation wire passage 102, and a connecting hole 407 connected with the inner tube 1. The operating wire 8 passes through the operating wire channel 102 of the inner tube 1 and is fixedly connected with the operating button 12 arranged on the rear handle 10, the operating button 12 can move back and forth along the rear handle 10, and simultaneously, the operating wire 8 is pulled to drive the flexible soft head 4 to deform and bend on one side. When the implantation device enters the human body cavity and meets a large bending angle part in the human body cavity, the bendable soft head at the far end of the implantation device can be bent through the operating button on the rear handle, so that the bent far end of the implantation device smoothly passes through the bending part in the human body cavity.

The utility model can push the operating button to operate the flexible soft head at the far end of the implantation device after the implantation device with the double brackets and the far end flexible in the visible state enters the human body cavity, so that the implantation device can smoothly pass through the human body cavity bend angle and reach the focus position; withdrawing the front handle and releasing the bracket between the inner pipe and the outer pipe; pushing the short push pipe, pushing a second support between the middle pipe and the inner pipe to the original first support, and repeatedly releasing the first support to release the second support; after reaching the designated position, the instrument can be alternately matched with other instruments for use. When the flexible guide wire is used, the front and back movement of the operating button 12 drives the operating wire to act and enables the flexible soft head to be deformed and bent on one side through the image of the electronic camera lens, and the purpose that the guide wire smoothly passes through the bent part in the intestinal tract is achieved.

Claims (6)

1. A double stent implantation device with a bendable distal end in a visible state, comprising: the flexible pipe joint comprises an inner pipe (1), a middle pipe (2) and an outer pipe (3) which are sequentially arranged from inside to outside, wherein a flexible soft head (4) is inserted and connected to the far end of the inner pipe (1), a first support (5) is compressed in a space between the outer pipe (3) and the inner pipe (1), and two ends of the first support (5) are respectively abutted to the near end of the flexible soft head (4) and the far end of the middle pipe (2); a short push pipe (6) is sleeved between the middle pipe (2) and the inner pipe (1), a second support (7) is compressed in a space between the middle pipe (2) and the inner pipe (1), and two ends of the second support (7) are abutted to the far end of the middle pipe (2) and the far end of the short push pipe (6); the outer pipe (3) can move back and forth relative to the middle pipe (2), the outer pipe (3) is withdrawn or the middle pipe (2) and the inner pipe (1) move forward together, so that the first support (5) is released from the space between the outer pipe (3) and the inner pipe (1) and returns to the original state; after the first support (5) is released, the short push pipe (6) moves forwards, and the second support (7) is pushed into a space between the outer pipe (3) and the inner pipe (1) to replace the first support (5); an electronic camera lens (14) with an LED light source is arranged in the bendable soft head (4), the bendable soft head (4) is symmetrically connected with operating wires (8) for controlling the bending of the bendable soft head, the operating wires (8) penetrate through the inner tube (1) and extend out, and the bendable soft head (4) can be driven to bend by pulling the operating wires (8); the bendable soft head (4) comprises a soft head part (401) and a columnar bendable connecting part (402), wherein the outer wall of the columnar bendable connecting part (402) is uniformly provided with a plurality of grooves and a plurality of connecting discs (403); the far end of the operating wire (8) is fixedly connected with the soft head part (401) and sequentially penetrates through the connecting disc (403); the soft head part (401) and the columnar bendable connecting part (402) are integrally formed; the near end of the outer pipe (3) is connected with a front handle (9), and the outer pipe can move back and forth along the outer wall of the middle pipe (2) under the driving of the front handle (9); the near ends of the middle pipe (2) and the inner pipe (1) are connected with a rear handle (10), and the middle pipe and the inner pipe can move back and forth along the inner wall of the outer pipe (3) under the drive of the rear handle (10); the operation wire (8) penetrates through the inner tube (1) and is fixedly connected with an operation button (12) arranged on the rear handle (10), the operation button (12) can move back and forth along the rear handle (10), and meanwhile the operation wire (8) is pulled to drive the flexible soft head (4) to deform and bend on one side.

2. The dual stent graft device of claim 1, wherein said distal end is bendable in a visible state, further comprising: the rear handle (10) is connected with a liquid injection joint (11), and the liquid injection joint (11) is communicated with the inner tube (1).

3. The dual stent graft device of claim 1, wherein said distal end is bendable in a visible state, further comprising: the inner wall of the far end of the middle pipe (2) is provided with a stop block (201).

4. The dual stent graft device of claim 1, wherein said distal end is bendable in a visible state, further comprising: the short push pipe (6) is provided with a push-assisting ring (601) extending out of the outer pipe, and the middle pipe (2) and the outer pipe (3) are respectively provided with a push-assisting sliding groove corresponding to the push-assisting ring (601).

5. The dual stent graft device of claim 1, wherein said distal end is bendable in a visible state, further comprising: and a boosting steel pipe (13) is sleeved between the middle pipe (2) and the inner pipe (1).

6. The dual stent graft device of claim 1, wherein said distal end is bendable in a visible state, further comprising: inner tube (1) is the multi-chamber pipe, and its inside seal wire passageway (101), operation silk passageway (102) and notes liquid passageway (103) have, offer seal wire hole (404) that are linked together with seal wire passageway (101), annotate liquid hole (405) that are linked together with notes liquid passageway (103), operation silk connecting hole (406) that are linked together with operation silk passageway (102) on flexible soft head (4) to and connecting hole (407) that are connected with inner tube (1).