EP4619068A2 - Système de cathéter ayant un fil-guide - Google Patents

Système de cathéter ayant un fil-guide

Info

Publication number
EP4619068A2
EP4619068A2 EP23814340.8A EP23814340A EP4619068A2 EP 4619068 A2 EP4619068 A2 EP 4619068A2 EP 23814340 A EP23814340 A EP 23814340A EP 4619068 A2 EP4619068 A2 EP 4619068A2
Authority
EP
European Patent Office
Prior art keywords
catheter
guidewire
proximal end
catheter system
distal end
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.)
Pending
Application number
EP23814340.8A
Other languages
German (de)
English (en)
Inventor
S. Ray Isaacson
Weston F. Harding
Ralph L. Sonderegger
Jonathan Karl Burkholz
Edwin JEYASEELAN A.
Mukilan BALAMURUGAN
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Becton Dickinson and Co
Original Assignee
Becton Dickinson and Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from US18/502,999 external-priority patent/US20240157096A1/en
Application filed by Becton Dickinson and Co filed Critical Becton Dickinson and Co
Publication of EP4619068A2 publication Critical patent/EP4619068A2/fr
Pending legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/06—Body-piercing guide needles or the like
    • A61M25/0606—"Over-the-needle" catheter assemblies, e.g. I.V. catheters
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/0097—Catheters; Hollow probes characterised by the hub
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/06—Body-piercing guide needles or the like
    • A61M25/0612—Devices for protecting the needle; Devices to help insertion of the needle, e.g. wings or holders
    • A61M25/0618—Devices for protecting the needle; Devices to help insertion of the needle, e.g. wings or holders having means for protecting only the distal tip of the needle, e.g. a needle guard
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/06—Body-piercing guide needles or the like
    • A61M25/0612—Devices for protecting the needle; Devices to help insertion of the needle, e.g. wings or holders
    • A61M25/0631—Devices for protecting the needle; Devices to help insertion of the needle, e.g. wings or holders having means for fully covering the needle after its withdrawal, e.g. needle being withdrawn inside the handle or a cover being advanced over the needle
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/06—Body-piercing guide needles or the like
    • A61M25/0693—Flashback chambers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/09—Guide wires
    • A61M25/09041—Mechanisms for insertion of guide wires

Definitions

  • Arterial catheterization is a vital procedure that is used ubiquitously in the hospital setting, both in critically injured and perioperative patients. It is estimated that more than eight million arterial catheters are placed yearly in the United States. Arterial catheters can accurately measure blood pressure as well as heart rate and pulse contour to allow for immediate recognition of aberrant hemodynamic events and initiation of appropriate treatment. Arterial catheters also provide samples for blood gas analysis without the morbidity associated with repeat arterial puncture. However, use of current arterial catheters can result in significant blood leakage during insertion into an artery of a patient, which can endanger a user. Moreover, current arterial catheters may be difficult to use with a probe or a catheter advancement device.
  • the present disclosure relates generally to vascular access devices, systems, and methods.
  • the catheter system may be configured for blood sampling, such as, for example, arterial blood sampling.
  • the catheter system may be configured for blood pressure monitoring and/or blood gas sampling.
  • the catheter system may provide near-patient access for more accurate hemodynamic measurements and improved delivery of an instrument, such as a secondary catheter and/or a probe, into a blood vessel, which may include an artery or a vein.
  • the catheter system may include a guidewire for improved catheter insertion success.
  • the catheter system may reduce blood exposure when inserted the catheter into an artery of a patient.
  • the catheter system may include a catheter assembly.
  • the catheter assembly may include a catheter adapter, which may include a distal end, a proximal end, a lumen extending through the distal end of the catheter adapter and the proximal end of the catheter adapter.
  • the catheter adapter may also include a side port between the distal end of the catheter adapter and the proximal end of the catheter adapter and in fluid communication with the lumen.
  • the catheter assembly may include the catheter extending from the distal end of the catheter adapter.
  • the distal port and the proximal port may be aligned with a longitudinal axis of the access connector.
  • the side port may be angled with respect to the longitudinal axis of the access connector.
  • the proximal end of the first extension tube may be integrated with the distal port of the access connector.
  • the distal end of the second extension tube may be integrated with the side port of the access connector.
  • the first extension tube may be shorter than the second extension tube such that the first extension tube facilitates advancement of a secondary catheter and/or probe through the first extension tube.
  • the longitudinal axis of the access connector, the first extension tube, and the side port may be configured to align to form a straight path, which may facilitate advancement of the secondary catheter and/or the probe within the catheter system.
  • the first extension tube may be rigid or semi-rigid, which may facilitate advancement of the secondary catheter and/or the sensor therethrough.
  • the proximal port may include a female luer, which may facilitate coupling of a catheter advancement device to the access connector.
  • the proximal port may include another suitable connector.
  • the catheter advancement device may be coupled to the proximal port.
  • the catheter advancement device may include the PIVOTM Needle-Free Blood Collection Device, available from Becton, Dickinson & Company of Franklin Lakes, New Jersey, or another suitable catheter advancement device.
  • the catheter advancement device may include a blood sampling device.
  • the catheter system may include a needle assembly, which may include one or more of the following: a safety housing, a guidewire advancement device, and an introducer needle.
  • An active safety mechanism e.g., pushing a button
  • a passive safety mechanism is activated automatically during normal use of the catheter system (e.g., withdrawal of the introducer needle).
  • the catheter system may include a needle safety element configured to shield a sharp distal tip of the introducer needle.
  • the needle safety element may include a V-clip needle shield, a crossing-arm clip, or another suitable spring clip or another passive safety mechanism configured to shield the introducer needle.
  • the needle safety element may be disposed within the safety housing or within the catheter adapter. In some embodiments, the needle safety element disposed within the safety housing may protect a user from blood splatter that may exit the sharp distal tip of the introducer needle and may also shield the user from the sharp distal tip. In some embodiments, the safety housing may include a distal end and a proximal end. In some embodiments, the distal end of the safety housing may be coupled to the proximal end of the catheter adapter.
  • the guidewire advancement device may include a distal end and a proximal end.
  • the distal end of the guidewire advancement device may be coupled to the proximal end of the safety housing.
  • the distal end of the guidewire advancement device may be coupled to the proximal end of the catheter adapter.
  • the introducer needle may include a proximal end coupled to the guidewire advancement device.
  • the introducer needle may extend through the catheter.
  • removal of the guidewire advancement device from the catheter system may be configured to withdraw the guidewire and the introducer needle from the catheter system.
  • the guidewire may be configured to remain proud of the introducer needle when the guidewire and the introducer needle are withdrawn from the catheter system.
  • the guidewire advancement device may include a slot and an advancement tab moveable linearly along the slot.
  • the advancement tab may be configured to advance the guidewire distally and/or withdraw the guidewire proximally.
  • a longitudinal axis of the guidewire advancement device may be aligned with a longitudinal axis of the catheter assembly.
  • the guidewire advancement device may include a rack and a pinion.
  • the advancement tab may include the rack.
  • the guidewire advancement device may include a rotary element configured to advance the guidewire distally and/or retract the guidewire proximally.
  • the introducer needle may include the sharp distal tip, a proximal end, and a lumen extending through the sharp distal tip and the proximal end.
  • the guidewire may be disposed within the lumen of the introducer needle and/or may be configured to move through the proximal end of the introducer needle to advance distally.
  • the introducer needle may include an external groove.
  • the guidewire may be disposed within the external groove and may be configured to move through the external groove to advance distally and/or be withdrawn proximally.
  • the safety housing may include an open space proximate and proximal to the V-clip needle shield.
  • the guidewire may be configured to bend within the open space when the V-clip needle shield fires.
  • the sharp distal tip may include a bevel facing upward, and the V-clip needle shield may be configured to fire side to side.
  • the sharp distal tip may include the bevel facing upward, and the V-clip needle shield may be configured to fire in an upward direction or a downward direction.
  • the introducer needle may include an aperture disposed between the sharp distal tip and the proximal end of the introducer needle.
  • the guidewire may be configured to extend through the extension tube, the side port, and the aperture and out the sharp distal tip of the introducer needle.
  • the method may include after removing the guidewire advancement device from the catheter system, coupling the catheter advancement device to the proximal port and advancing a secondary catheter into the catheter assembly via the catheter advancement device. In some embodiments, the method may include after removing the guidewire advancement device from the catheter system, coupling a probe advancement device to the proximal port and advancing a probe of the probe advancement device into the catheter assembly. In some embodiments, the probe may include one or more sensors configured to measure one or more properties of blood.
  • a catheter system may include a catheter adapter, which may include a distal end, a proximal end, a lumen extending through the distal end of the catheter adapter and the proximal end of the catheter adapter.
  • the catheter system may include a catheter extending from the distal end of the catheter adapter.
  • the catheter system may include a guidewire advancement device coupled to the catheter adapter.
  • the guidewire advancement device may include a casing, a guidewire at least partially disposed within the casing, and a roller wheel element extending through the casing and contacting the guidewire.
  • the guidewire in response to rotation of the roller wheel element in a proximal direction, the guidewire may be configured to advance distally.
  • the catheter system may include an introducer needle, which may include a proximal end and a sharp distal tip.
  • the proximal end of the introducer needle may be secured within the guidewire advancement device.
  • the introducer needle may extend through the catheter.
  • the catheter system may include a septum and a septum actuator disposed within the lumen of the catheter adapter.
  • the septum may help stop blood flow through the catheter adapter when the catheter adapter is not engaged with an external connector or extension set.
  • a fluid path through the catheter adapter may be closed unless the external connector is engaged with the catheter adapter such that the septum actuator opens the septum.
  • a guidewire advancement device coupled to the catheter adapter may include a casing, a slot within the casing, a guidewire, and an advancement tab extending through the slot and configured to move along the slot to advance the guidewire distally.
  • Figure 1 A is an upper perspective view of an example catheter system, illustrating an example linear guidewire advancement device, according to some embodiments;
  • Figure IB is a cross-sectional view of the catheter system, illustrating an example advancement tab in an example proximal position, according to some embodiments;
  • Figure 1C is a cross-sectional view of the catheter system, illustrating the advancement tab in an example distal position, according to some embodiments;
  • Figure 2A is an upper perspective view of the catheter system, illustrating an example rotary guidewire advancement device, according to some embodiments
  • Figure 2B is a cross-sectional view of the catheter system, illustrating an example rotary element in a first position, according to some embodiments;
  • Figure 2C is a cross-sectional view of the catheter system, illustrating the rotary element rotated to a second position, according to some embodiments;
  • Figure 2D provides an exploded rear view of the rotary element in isolation, according to some embodiments.
  • Figure 3A is an upper perspective view of an example introducer needle having a groove, according to some embodiments.
  • Figure 3B is a cross-sectional view of the introducer needle, according to some embodiments.
  • Figure 4A is an upper perspective view of the introducer needle having an example aperture and a guidewire extending through the aperture, according to some embodiments;
  • Figure 4B is a partial cutaway view of the catheter system, illustrating the introducer needle having the aperture, according to some embodiments;
  • Figure 4C is a cross-sectional view of an example adapter, according to some embodiments;
  • Figure 5A is an upper perspective view of an example V-clip needle shield, according to some embodiments.
  • Figure 5B is a cross-sectional view of the V-clip needle shield separating from an example catheter adapter groove, according to some embodiments
  • Figure 6B is a partial-cutaway view of the catheter system, illustrating the capture mechanism with the introducer needle retracted within the inner housing, according to some embodiments;
  • Figure 6C is a partial-cutaway view of the catheter system, illustrating the capture mechanism being removed from the catheter adapter, according to some embodiments;
  • Figure 7 is an upper perspective view of an example spring clip with the introducer needle shielded therein, according to some embodiments.
  • Figure 8A is a cross-sectional view of an example pinion and an example advancement tab having an example rack, illustrating the advancement tab in a first, proximal position, according to some embodiments; and [0043] Figure 8B is a cross-sectional view of the pinion and the advancement tab having the example rack, illustrating the advancement tab in an example second, distal position, according to some embodiments;
  • Figure 9A is a side view of another example catheter system, according to some embodiments.
  • Figure 9B is a cross-sectional view of the catheter system of Figure 9, according to some embodiments.
  • Figure 9C is another cross-sectional view of the catheter system of Figure 9 transverse to the cross-sectional view of Figure 9B, according to some embodiments;
  • Figure 9E is an upper perspective view of an example septum actuator, according to some embodiments.
  • Figure 9F is an upper perspective view of an example septum, according to some embodiments.
  • a distal portion of the introducer needle 50 may extend into a catheter 19, and the outer housing 144 may be coupled to the catheter adapter 12.
  • the inner housing 142 may be split longitudinally to form multiple arms 148.
  • the inner housing 142 may include any number of arms, such as, for example, two, three, or four.
  • the arms 148 may extend distally from a proximal portion, such as a proximal end, of the inner housing 142.
  • the introducer needle 50 when the introducer needle 50 is exposed from the distal end 146 of the inner housing 142, the introducer needle 50 may be configured to bias the arms 148 apart.
  • FIG. 7 a crossing-arm clip 158, another type of spring clip, is illustrated, according to some embodiments.
  • the V-clip needle shield 46 of Figures 1B-1C of Figures 2B-2C may be replaced with the crossing-arm clip 158 or another suitable spring clip or needle safety element.
  • the crossing-arm clip 158 may be disposed within the safety housing 44.
  • the crossing-arm clip 158 may be disposed within a catheter adapter, such as, for example, the catheter adapter 12 of Figure 1 of another suitable catheter adapter.
  • the crossing-arm clip 158 may include a resilient first arm 160 and a resilient second arm 162 configured to cross each other.
  • proximal ends of the first arm 160 and the second arm 162 may join at a proximal wall, which may include an opening sized and configured to slidably receive a proximal end of the introducer needle 50 as the introducer needle 50 is advanced in a distal direction.
  • a needle feature or bump (not illustrated) may prevent the sharp distal tip 72 of the introducer needle 50 from being withdrawn proximally through the opening as a diameter of the needle feature or bump may be larger than a diameter of the opening.
  • distal ends of the first arm 160 and the second arm 162 may be curved and/or include a lip.
  • the introducer needle 50 when the introducer needle 50 is in the insertion position, ready for insertion into the patient, the introducer needle 50 may be disposed between the distal end of the first arm 160 and the distal end of the second arm 162, biasing the first and second arms 160, 162 outwardly.
  • the first and second arms 160,162 when the first and second arms 160,162 are biased outwardly they may engage an inner wall of the catheter adapter or an inner wall of the safety housing 44, securing the crossing-arm clip 158 within the catheter adapter or the safety housing 44.
  • the distal ends of the first and second arms 160, 162 may move closer to each other and/or overlap, which may release the crossing-arm clip 158 from the catheter adapter or the safety housing 44 and prevent the introducer needle 50 from moving in a distal direction beyond the crossing-arm clip 158, as illustrated in Figure 7, for example.
  • the crossing-arm clip 158 may not be modified for the guidewire 62 and/or may include a clip described further in U.S. Patent No. 7,972,313, filed November 22, 2006, entitled “SPRING CLIP SAFETY IV CATHETER,” which is hereby incorporated by reference in its entirety.
  • the distal end of the first arm 160 and/or the distal end of the second arm 162 may include an aperture 164 sized and configured to receive the guidewire 62.
  • a diameter of the aperture may be less than the diameter of the introducer needle 50, which may prevent the introducer needle 50 from moving distally through the aperture in the shielded position.
  • the crossing-arm clip 158 may be further described in U.S. Patent No. 11,291,803, filed January 3, 2019, entitled “CATHETER SYSTEM WITH GUIDEWIRE ADVANCEMENT ELEMENT,” which is hereby incorporated by reference in its entirety.
  • the guidewire advancement device 165 may include a rack 166 and a pinion 168.
  • the advancement tab 66 may include the rack 166.
  • the advancement tab 66 may be similar or identical to the advancement tab 66 of Figures 1 -2 in terms of one or more features and/or operation with respect to the slot 64.
  • the guidewire advancement device 165 may be similar or identical to the guidewire advancement device 48 and/or the guidewire advancement device 106 in terms of one or more features and/or operation.
  • the pinion 168 may include a spool for the guidewire 62. Therefore, when the rack 166 is moved to rotate the pinion 168, the rotation may cause the guidewire 62 to be advanced or retracted depending on the direction in which rack 166 is moved and the pinion 168 is rotated.
  • the catheter system 200 may be similar or identical to Figures 1-8 in terms of one or more components and/or operation.
  • the catheter system 200 may include a catheter adapter 202, which may include a distal end 204, a proximal end 206, a lumen extending through the distal end 204 of the catheter adapter 202 and the proximal end 206 of the catheter adapter 202.
  • the catheter system 200 may include a catheter 209 extending from the distal end 204 of the catheter adapter 202.
  • the catheter system 200 may include a guidewire advancement device 220 coupled to the catheter adapter 202.
  • the guidewire advancement device 220 may include a casing 222, a guidewire 224 at least partially disposed within the casing 222, and a roller wheel element 226 extending through the casing 222 and contacting the guidewire 224.
  • the guidewire 224 in response to rotation of the roller wheel element 226 in a direction 228 that is proximal or towards a proximal end 230 of the casing 222, the guidewire 224 may be configured to advance distally.
  • the roller wheel element 226 may slightly pinch or compress the guidewire 224 as the roller wheel element 226 rotates or turns on a central axis, which may facilitate advancement of the guidewire 224.
  • the catheter system 200 may include an introducer needle 232, which may include a proximal end 234 and a sharp distal tip 236. In some embodiments, a removable cover 237 may be disposed over the sharp distal tip 236 to prevent accidental needle stick. In some embodiments, the proximal end 234 of the introducer needle 232 may be secured within the guidewire advancement device 220. In some embodiments, the introducer needle 232 may extend through the catheter 219, and the guidewire 224 may be configured to move through the introducer needle 232 when the guidewire 224 is advanced distally.
  • the catheter system 200 may include a platform 238 disposed within the casing 222 and below the roller wheel element 226.
  • the platform 238 may contact and support the guidewire 224.
  • the platform 238 may include a linear groove 240.
  • the guidewire 224 may be disposed within the linear groove 240, which may facilitate guidance of the guidewire 224 during distal advancement of the guidewire 224.
  • the platform 238 may be generally planar.
  • the catheter system 200 may include opposing roller wheel support grooves 242a, 242b disposed within the casing 222.
  • the roller wheel element 226 may include opposing pins 244a, 244b fixed with respect to a circular body of the roller wheel element 226.
  • the opposing pins 244a, 244b may be configured to rotate within the opposing roller wheel support grooves 242a, 242b.
  • the circular body may rotate on an axle.
  • the circular body may extend through a slot 245 within the casing 222 and may be configured for easy rotation by a finger of a user.
  • a proximal end of the guidewire 224 may be looped back on itself, coiled, or otherwise organized to facilitate distal movement and prevent tangling.
  • the proximal end of the guidewire 224 may be disposed on a floor of the casing 222 below the platform 238.
  • the guidewire 224 in response to rotation of the roller wheel element 226 in the direction 228 that is proximal or towards a proximal end 230 of the casing 222, the guidewire 224 may be configured to advance distally, including through the introducer needle 232 and the catheter 209 and into vasculature of a patient.
  • a distal end 246 of the casing 222 may include a male luer fitting 248, which may facilitate coupling to the catheter adapter 202 and/or a safety housing, such as, for example, the safety housing 44 of Figures 1-2.
  • the distal end 246 of the casing 222 may include another type of suitable connector.
  • the safety housing may include a needle safety element, such as, for example, the V-clip needle shield 46 as previously described or another suitable needle safety element.
  • the catheter system 200 may include a septum 250 and a septum actuator 252 disposed within the lumen of the catheter adapter 202.
  • the septum actuator 252 may be used to open the septum 250 in response to engagement of an external connector or insertion of an external connector into the proximal end 206 such that the septum actuator 252 is moved distally through the septum 250, which may include a slit 251.
  • the septum actuator 252 in response to removal of the external connector from the proximal end 206, the septum actuator 252 may return to a proximal position within the lumen, and the septum 250 may close.
  • the user may remove the removable needle cover 237 and make sure the guidewire 224 is inside the introducer needle 232.
  • tip adhesion may be broken.
  • blood flashback may be observed by the clinician in a flashback chamber of the catheter system 200 or via a notch in the introducer needle 232, allowing blood to flow between the introducer needle 232 and the catheter 209.
  • the roller wheel element 226 may be rotated to move the guidewire 224 through the introducer needle 232.
  • the catheter adapter 202 may be advanced distally to further move the catheter 209 into the blood vessel.
  • the casing 222 may be uncoupled from the catheter adapter 202 and slowly moved proximally by the user, withdrawing the introducer needle 232 and the guidewire 224 from the catheter adapter 202 and the catheter system 200.
  • the casing 222, introducer needle 232, and the guidewire 224 may all be discarded into an appropriate sharps container.
  • the catheter system 260 may be similar or identical to Figures 1-9 in terms of one or more components and/or operation.
  • the catheter system 260 may include a guidewire advancement device 262 coupled to the catheter adapter 202.
  • the guidewire advancement device 262 may include a casing 264, a slot 266 within the casing 264, the guidewire 224, and an advancement tab 268 extending through the slot 266 and configured to move linearly along the slot 266 to advance the guidewire 224 distally.
  • a shape of the advancement tab 268 may facilitate smooth, supported movement through a lumen of the casing 264.
  • the guidewire 224 may be coupled to and extend distally from the advancement tab 268.
  • the slot 266 may include a snap feature 270, which may engage with the advancement tab 268 to prevent the advancement tab 268 from moving proximally after advancement, reducing a risk of shearing the guidewire 224 on the introducer needle 232.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biophysics (AREA)
  • Pulmonology (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Media Introduction/Drainage Providing Device (AREA)

Abstract

Un système de cathéter peut comprendre un ensemble cathéter et un ensemble aiguille. L'ensemble cathéter peut comprendre un adaptateur de cathéter, qui peut comprendre une extrémité distale, une extrémité proximale, une lumière et un orifice latéral. L'ensemble cathéter peut comprendre un cathéter s'étendant à partir de l'extrémité distale de l'adaptateur de cathéter et un tube d'extension. L'extrémité distale du tube d'extension peut être intégrée à l'orifice latéral de l'adaptateur de cathéter. L'ensemble aiguille peut comprendre un élément de sécurité d'aiguille, qui peut être disposé à l'intérieur du boîtier de sécurité ou de l'adaptateur de cathéter. L'ensemble aiguille peut comprendre un dispositif d'avancement de fil-guide accouplé au boîtier de sécurité ou à l'adaptateur de cathéter, et une aiguille d'introduction ayant une extrémité proximale accouplée au dispositif d'avancement de fil-guide.
EP23814340.8A 2022-11-16 2023-11-07 Système de cathéter ayant un fil-guide Pending EP4619068A2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US202263425896P 2022-11-16 2022-11-16
US18/502,999 US20240157096A1 (en) 2022-11-16 2023-11-06 Catheter system having a guidewire
PCT/US2023/078990 WO2024107566A2 (fr) 2022-11-16 2023-11-07 Système de cathéter ayant un fil-guide

Publications (1)

Publication Number Publication Date
EP4619068A2 true EP4619068A2 (fr) 2025-09-24

Family

ID=88978290

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23814340.8A Pending EP4619068A2 (fr) 2022-11-16 2023-11-07 Système de cathéter ayant un fil-guide

Country Status (4)

Country Link
EP (1) EP4619068A2 (fr)
JP (1) JP2025538472A (fr)
CN (2) CN120225238A (fr)
WO (1) WO2024107566A2 (fr)

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US8211070B2 (en) 1997-08-20 2012-07-03 B. Braun Melsungen Ag Spring clip safety IV catheter
US9220871B2 (en) 2006-11-22 2015-12-29 Becton, Dickinson And Company Needle shielding pawl structures
US8690833B2 (en) * 2011-01-31 2014-04-08 Vascular Pathways, Inc. Intravenous catheter and insertion device with reduced blood spatter
US10500376B2 (en) * 2013-06-07 2019-12-10 Becton, Dickinson And Company IV catheter having external needle shield and internal blood control septum
US10507281B2 (en) 2016-03-28 2019-12-17 Becton, Dickinson And Company Cannula capture mechanism
US11291803B2 (en) 2018-01-11 2022-04-05 Becton, Dickinson And Company Catheter system with guidewire advancement element
BR112022008263A2 (pt) * 2019-11-21 2022-07-26 Bard Access Systems Inc Orientação de avanço de fio guia selecionável por usuário e orientação de avanço de cateter

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CN222110692U (zh) 2024-12-06
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