CA2654004A1 - Release mechanisms for a clip device - Google Patents

Release mechanisms for a clip device Download PDF

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Publication number
CA2654004A1
CA2654004A1 CA002654004A CA2654004A CA2654004A1 CA 2654004 A1 CA2654004 A1 CA 2654004A1 CA 002654004 A CA002654004 A CA 002654004A CA 2654004 A CA2654004 A CA 2654004A CA 2654004 A1 CA2654004 A1 CA 2654004A1
Authority
CA
Canada
Prior art keywords
retainer
clip
arms
sliding ring
distal
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.)
Granted
Application number
CA002654004A
Other languages
French (fr)
Other versions
CA2654004C (en
Inventor
Hilbert D. Brown
Steve K. Chen
Caroline M. Gayzik
Richard W. Ducharme
John A. Karpiel
Kathryn M. Kornrumpf
Vihar C. Surti
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.)
Cook Endoscopy
Original Assignee
Wilson-Cook Medical, Inc.
Hilbert D. Brown
Steve K. Chen
Caroline M. Gayzik
Richard W. Ducharme
John A. Karpiel
Kathryn M. Kornrumpf
Vihar C. Surti
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
Application filed by Wilson-Cook Medical, Inc., Hilbert D. Brown, Steve K. Chen, Caroline M. Gayzik, Richard W. Ducharme, John A. Karpiel, Kathryn M. Kornrumpf, Vihar C. Surti filed Critical Wilson-Cook Medical, Inc.
Publication of CA2654004A1 publication Critical patent/CA2654004A1/en
Application granted granted Critical
Publication of CA2654004C publication Critical patent/CA2654004C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/12Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
    • A61B17/122Clamps or clips, e.g. for the umbilical cord
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/12Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
    • A61B17/128Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord for applying or removing clamps or clips
    • A61B17/1285Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord for applying or removing clamps or clips for minimally invasive surgery
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/064Surgical staples, i.e. penetrating the tissue
    • A61B17/0643Surgical staples, i.e. penetrating the tissue with separate closing member, e.g. for interlocking with staple
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00526Methods of manufacturing
    • A61B2017/0053Loading magazines or sutures into applying tools
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/064Surgical staples, i.e. penetrating the tissue
    • A61B2017/0641Surgical staples, i.e. penetrating the tissue having at least three legs as part of one single body
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/03Automatic limiting or abutting means, e.g. for safety
    • A61B2090/033Abutting means, stops, e.g. abutting on tissue or skin

Abstract

A clip device for hemostasis includes a clip having a proximal end portion and at least two arm portions extending from the proximal end portion and provided with a tendency to open. A sliding ring is provided for closing the arm portions of the clip. A first retainer is attached to the clip, and the first retainer is configured to be releasably secured to a second retainer that may be attached to an operating wire or a torque cable. In operation, the clip device is advanced to a target site in a body cavity. An outer sheath is retracted to expose the clip, causing the arms to open. An inner sheath is advanced distally, causing the sliding ring to advance distally to close the arms of the clip. Stop elements may be disposed on the clip to ensure that he sliding ring is not advanced distally over the clip. Then, the first retainer is disengaged from the second retainer. Various mechanisms are disclosed to permit the first and second retainers to disengage from one another. The first retainer, attached to the clip, is left inside the patient's body cavity, while the second retainer is removed from the patient.

Claims (31)

1. A clip device for use in endoscopic medical procedures comprising:
a clip having a plurality of arms each having a proximal end and a distal end, wherein the proximal end of each of the arms is joined to a first retainer and extends distally therefrom, each of the arms being formed of a resilient material and shaped so that the distal ends tend to be spaced apart from each other when the clip is in an open position and adjacent to each other when the clip is in a closed position;
a sliding ring being movable between a first position when the clip is in the open position and a second position to hold the arms of the clip in the closed position; and at least one stop element disposed on at least one of the arms of the clip.
2. The clip device of claim 1, wherein the stop element limits distal movement of the sliding ring.
3. The clip device of claim 1, wherein the stop element comprises at least one bead-shaped element disposed on the arm.
4. The clip device of claim 1 wherein the sliding ring has a distal end having at least one channel formed therein, wherein the channel is sized to permit movement of one of the plurality of arms therethrough and inhibit movement of the stop element therethrough.
5. The clip device of claim 4 further comprising at least one depression formed in the distal end of the sliding ring and configured to lockingly engage a stop element disposed on the arm.
6. The clip device of claim I wherein the first retainer has proximal and distal regions, the clip device further comprising a second retainer having proximal and distal regions, wherein the first retainer is configured to be coupled to the second retainer prior to deployment of the clip, and wherein the first retainer is configured to be disengaged from the second retainer after the clip is deployed.
7. The clip device of claim 6 wherein the first retainer is configured to be disengaged from the second retainer by proximally retracting the second retainer with respect to the first retainer.
8. The clip device of claim 7 wherein the first retainer and the second retainer have opposing magnetic forces, wherein application of a sufficient retraction force to the second retainer causes the second retainer to disengage from the first retainer.
9. The clip device of claim 7 wherein the first retainer is coupled to the second retainer using a ball bearing arrangement.
10. The clip device of claim 6 further comprising:
a wire extending from the distal region of the second retainer and a ball attached to a distal end of the wire; and a channel and socket formed in the proximal region of the first retainer, wherein the channel and socket are configured to receive the wire and ball, respectively, to couple the first retainer to the second retainer.
11. The clip device of claim 10 wherein the sliding ring prevents disengagement of the ball from the socket prior to deployment of the clip.
12. The clip device of claim 6 wherein the first retainer is disengaged from the second retainer by causing rotation of the second retainer with respect to the first retainer.
13. A method for causing hemostasis, the method comprising the steps of:
providing a clip having a plurality of arms and at least one stop element disposed on at least one of the arms, wherein a proximal end of each of the arms is joined to a first retainer and extends distally therefrom;
delivering the clip in the vicinity of target tissue; and distally advancing a sliding ring to close the arms of the clip and engage the target tissue, wherein the sliding ring is advanced until it contacts the stop element such that the stop element limits further distal movement of the sliding ring.
14. The method of claim 13 further comprising:
providing an outer sheath and an inner sheath configured for longitudinal movement within the outer sheath;
disposed the sliding ring within the outer sheath at a location distal to the inner sheath; and distally advancing the inner sheath to cause distal advancement of the sliding ring and further cause the sliding ring to engage to clip to hold the arms of the clip in a closed position.
15. The method of claim 14 further comprising:
disposing the arms of the clip within the outer sheath to restrain the arms in the delivery configuration; and retracting the outer sheath to expose the arms of the clip to cause distal ends of the arms to be spaced apart from each other prior to distal advancement of the sliding ring.
16. The method of claim 13 further comprising coupling the first retainer to a second retainer prior to delivering the clip in the vicinity of target tissue.
17. The method of claim 16 further comprising retracting the inner sheath proximal to the first retainer and the second retainer to cause the first and second retainers to disengage from one another.
18. The method of claim 16 wherein the first retainer is disengaged from the second retainer by proximally retracting the second retainer with respect to the first retainer.
19. The method of claim 18 wherein the first retainer and the second retainer have opposing magnetic forces, the method further comprising applying a sufficient retraction force to the second retainer to cause the second retainer to disengage from the first retainer.
20. The method of claim 16 further comprising:
providing a hook disposed on a proximal region of the first retainer;
providing a loop member coupled to a distal region of the second retainer, wherein the loop member is disposed around the hook to couple to the first retainer to the second retainer in the delivery configuration;
positioning the sliding ring over the hook to radially constrain the loop member in the delivery configuration; and distally advancing the sliding ring to allow the loop member to disengage from the hook, thereby causing the second retainer to disengage from the first retainer.
21. The method of claim 16 further comprising:
providing a ball extending distally from the second retainer, the ball being disposed within a socket formed in the first retainer to couple the first retainer to the second retainer;
positioning the sliding member over the socket to constrain the ball within the socket in the delivery configuration; and distally advancing the sliding ring to permit the ball to disengage from the socket, thereby causing the second retainer to disengage from the first retainer.
22. A clip device for use in endoscopic medical procedures comprising:
a first retainer having proximal and distal regions;
a clip having a plurality of arms each having a proximal end and a distal end, wherein the proximal end of each of the arms is joined to the first retainer and extends distally therefrom, each of the arms being formed of a resilient material and shaped so that the distal ends tend to be spaced apart from each other when the clip is in an open position and adjacent to each other when the clip is in a closed position;
a sliding ring being movable between a first position when the clip is in the open position and a second position to hold the arms of the clip in the closed position; and a second retainer having proximal and distal regions, wherein the first retainer is configured to be coupled to the second retainer prior to deployment of the clip, wherein the first retainer is configured to be disengaged from the second retainer after the clip is deployed by at least one of rotation or proximal retraction of the second retainer with respect to the first retainer.
23. The clip device of claim 22 wherein the releasable coupling mechanism comprises a magnet, wherein the application of a sufficient retraction force to the second retainer causes the second retainer to overcome a magnetic force to disengage from the first retainer.
24. The clip device of claim 22 wherein the releasable coupling.mechanism comprises a ball bearing arrangement.
25. The clip device of claim 24 wherein at least one ball element is coupled to first retainer, and wherein the second retainer comprises at least one notch configured to at least partially receive the ball element to couple the first retainer to the second retainer.
26. The clip device of claim 22 further comprising:
a bore disposed in the proximal region of the first retainer, the bore having internal threading; and external threading disposed on the distal region of the second retainer and configured to engage the internal threading, wherein rotation of the second retainer causes the extemal threading to disengage from the internal threading.
27. The clip device of claim 22 further comprising:
a bore formed in the proximal region of the first retainer and having at least one inwardly-directed knob extending into the bore; and at least one axial channel and at least one circumferential channel formed in a lateral surface of the second retainer, wherein the knob is configured to slide within the axial channel and the circumferential channel, and wherein rotation of the second retainer with respect to the first retainer causes the knob to be disposed within the circumferential channel to prevent longitudinal movement between the first retainer and the second retainer.
28. A clip device for use in endoscopic medical procedures comprising:
a first retainer having proximal and distal regions;
a clip having a plurality of arms each having a proximal end and a distal end, wherein the proximal end of each of the arms is joined to the first retainer and extends distally therefrom, each of the arms being formed of a resilient material and shaped so that the distal ends tend to be spaced apart from each other when the clip is in an open position and adjacent to each other when the clip is in a closed position;
an outer sheath at least partially housing an inner sheath and a sliding ring, the inner
29 sheath and the sliding ring being configured for longitudinal movement within the outer sheath, wherein the inner sheath is disposed proximal to the sliding ring, wherein the sliding ring being movable between a first position when the clip is in the open position and a second position to hold the arms of the clip in the closed position; and a second retainer having proximal and distal regions, wherein the first retainer is configured to be coupled to the second retainer prior to deployment of the clip, and wherein the first retainer is configured to be disengaged from the second retainer when no longer radially constrained by the sliding ring or the inner sheath.

29. The clip device of claim 28 wherein the first retainer comprises a partially rounded notch formed therein and has a rounded knob formed proximal to the notch, and wherein the second retainer comprises a partially rounded notch formed therein and has a rounded knob disposed distal to the notch, wherein the rounded knob of the second retainer is aligned with the notch of the first retainer, and wherein the rounded knob of the first retainer is aligned with the notch of the second retainer to secure the first retainer to the second retainer.
30. The clip device of claim 28 further comprising:
a wire extending from the distal region of the second retainer and a ball attached to a distal end of the wire; and a channel and socket formed in the proximal region of the first retainer, wherein the channel and socket are configured to receive the wire and ball, respectively, to couple the first retainer to the second retainer.
31. The clip device of claim 28 further comprising:
a wire extending from the distal region of the second retainer and a ball attached to a distal end of the wire; and an angled channel disposed in the first retainer, wherein the channel is configured to receive the ball to couple the first retainer to the second retainer, and wherein the ball is confined within the channel by the sliding ring or the inner sheath.
CA2654004A 2006-06-01 2007-05-30 Release mechanisms for a clip device Expired - Fee Related CA2654004C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US80991206P 2006-06-01 2006-06-01
US60/809,912 2006-06-01
PCT/US2007/012754 WO2007142977A2 (en) 2006-06-01 2007-05-30 Release mechanisms for a clip device

Publications (2)

Publication Number Publication Date
CA2654004A1 true CA2654004A1 (en) 2007-12-13
CA2654004C CA2654004C (en) 2012-01-10

Family

ID=38698680

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2654004A Expired - Fee Related CA2654004C (en) 2006-06-01 2007-05-30 Release mechanisms for a clip device

Country Status (6)

Country Link
US (1) US20070282355A1 (en)
EP (1) EP2020925B1 (en)
JP (2) JP5204100B2 (en)
AU (1) AU2007255016A1 (en)
CA (1) CA2654004C (en)
WO (1) WO2007142977A2 (en)

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