IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0121213
(2008-09-29)
|
등록번호 |
US-8882785
(2014-11-11)
|
국제출원번호 |
PCT/US2008/011244
(2008-09-29)
|
§371/§102 date |
20111018
(20111018)
|
국제공개번호 |
WO2010/036227
(2010-04-01)
|
발명자
/ 주소 |
- DiCesare, Paul C.
- Radziunas, Jeffrey P.
|
출원인 / 주소 |
|
대리인 / 주소 |
Wolf, Greenfield & Sacks, P.C.
|
인용정보 |
피인용 횟수 :
0 인용 특허 :
269 |
초록
▼
An endoscopic suturing device that can be employed to suture tissue using endoscopic techniques to place one or more stitches in tissue during a single intubation of an endoscope. The suturing device may include a suturing capsule with a suction chamber that is configured to capture tissue that is t
An endoscopic suturing device that can be employed to suture tissue using endoscopic techniques to place one or more stitches in tissue during a single intubation of an endoscope. The suturing device may include a suturing capsule with a suction chamber that is configured to capture tissue that is to be sutured. A needle is movable along a pathway across the suction chamber to penetrate and place stitches in the captured tissue. A catch is located distal to the suction chamber to receive and retain the suture during a stitching sequence. The catch may be movable along the needle pathway and configured to release the suture when the catch moves a predetermined distance along the pathway. The catch may be configured so that a predetermined amount of force is required to move the catch the predetermined distance required to release the suture.
대표청구항
▼
1. An endoscopic tissue suturing device, comprising: a suturing capsule that is mountable to a distal end of an endoscope, the suturing capsule adapted to capture tissue at a tissue capture region thereof;a needle that is slidable in a longitudinal direction within the suturing capsule along a pathw
1. An endoscopic tissue suturing device, comprising: a suturing capsule that is mountable to a distal end of an endoscope, the suturing capsule adapted to capture tissue at a tissue capture region thereof;a needle that is slidable in a longitudinal direction within the suturing capsule along a pathway that extends from a proximal end of the tissue capture region to a distal end of the tissue capture region, the needle is adapted to penetrate tissue captured within the tissue capture region when the needle is extended in a distal direction from the proximal end to the distal end of the tissue capture region;a suture tag that is securable to the needle to carry a suture across the tissue capture region; anda suture tag catch positioned distal to the tissue capture region to retain the suture tag at a distal end of the tissue capture region when the suture tag is released from the needle and the needle is retracted to the proximal end of the tissue capture region, the suture tag catch being movable relative to the suturing capsule in the longitudinal direction to release the suture tag when the suture tag is locked to the needle and the needle is retracted toward the proximal end of the tissue capture region. 2. The endoscopic tissue suturing device according to claim 1, wherein the suturing capsule includes a tissue suction chamber at the tissue capture region that is adapted to capture tissue therein when a vacuum is applied thereto. 3. The endoscopic tissue suturing device according to claim 1, wherein the suture tag catch is slidable in a proximal direction toward the proximal end of the tissue capture region to release the suture tag. 4. The endoscopic tissue suturing device according to claim 3, wherein the suture tag catch is biased to a locked position in a distal direction away from the proximal end of the tissue capture region. 5. The endoscopic tissue suturing device according to claim 4, further comprising a compression spring positioned between a distal end of the suture tag catch and the distal end of the tissue capture region to bias the suture tag catch in the distal direction. 6. The endoscopic tissue suturing device according to claim 1, wherein the suture tag catch includes a plurality of resilient fingers that expand in an outward lateral direction to receive and release the suture tag. 7. The endoscopic tissue suturing device according to claim 6, wherein the resilient fingers are biased inwardly to a locked position to retain the suture tag when the suture tag is received in the suture tag catch. 8. The endoscopic tissue suturing device according to claim 7, wherein the suture tag is configured to expand the resilient fingers outwardly to receive the suture tag as the needle is extended toward the distal end of the tissue capture region. 9. The endoscopic tissue suturing device according to claim 8, wherein the suture tag includes a tapered distal end configured to expand the resilient fingers. 10. The endoscopic tissue suturing device according to claim 8, further comprising a cam tube that is configured to open the resilient fingers as the suture tag catch is moved in the proximal direction. 11. The endoscopic tissue suturing device according to claim 10, wherein the cam tube includes a tapered surface at a proximal end thereof that is adapted to engage and open the resilient fingers. 12. The endoscopic tissue suturing device according to claim 11, wherein each resilient finger includes a follower that is configured to coact with the tapered surface. 13. The endoscopic tissue suturing device according to claim 12, wherein the follower includes an offset bend in the resilient finger. 14. The endoscopic tissue suturing device according to claim 10, wherein the cam tube is adapted to receive the needle when the needle is extended toward the distal end of the tissue capture region. 15. The endoscopic tissue suturing device according to claim 6, wherein the resilient fingers are configured to grasp a proximal end of the suture tag to retain the suture tag in the suture tag catch, the resilient fingers being pulled in the proximal direction by the suture tag when the suture tag is locked to the needle and the needle is retracted in the proximal direction toward the proximal end of the tissue capture region, movement of the needle a predetermined distance causes the resilient fingers to open to release the suture tag. 16. An endoscopic tissue suturing device, comprising: a suturing capsule that is mountable to a distal end of an endoscope, the suturing capsule including a tissue suction chamber that is adapted to capture tissue therein when a vacuum is applied thereto;a needle that is slidable within the suturing capsule along a pathway that extends from a first end of the tissue suction chamber to a second end of the tissue suction chamber, the needle being adapted to penetrate tissue captured within the tissue suction chamber when the needle is extended from the first end to the second end of the tissue suction chamber;a suture tag that is securable to the needle to carry a suture across the tissue suction chamber; anda suture tag catch positioned at the second end of the tissue suction chamber to retain the suture tag when the suture tag is released from the needle and the needle is retracted to the first end of the tissue suction chamber, the suture tag catch being movable both along the pathway and transverse to the pathway to release the suture tag when the suture tag is locked to the needle and the needle is retracted to the first end of the tissue suction chamber. 17. The endoscopic tissue suturing device according to claim 16, wherein the suture tag catch is movable in a linear direction along the pathway and in a lateral direction transverse to the linear direction. 18. The endoscopic tissue suturing device according to claim 17, wherein the needle is movable in a longitudinal direction along the pathway. 19. The endoscopic tissue suturing device according to claim 16, wherein the suture tag catch is slidable in a first direction toward the first end of the tissue suction chamber to release the suture tag. 20. The endoscopic tissue suturing device according to claim 19, wherein the suture tag catch is biased to a locked position in a second direction away from the first end of the tissue suction chamber. 21. The endoscopic tissue suturing device according to claim 20, further comprising a compression spring positioned between a second end of the suture tag catch and the second end of the tissue suction chamber to bias the suture tag catch in the second direction. 22. The endoscopic tissue suturing device according to claim 16, wherein the suture tag catch includes a plurality of resilient fingers that expand in an outward lateral direction to receive and release the suture tag. 23. The endoscopic tissue suturing device according to claim 22, wherein the resilient fingers are biased inwardly to a locked position to retain the suture tag when the suture tag is received in the suture tag catch. 24. The endoscopic tissue suturing device according to claim 23, wherein the suture tag is configured to expand the resilient fingers outwardly to receive the suture tag as the needle is extended toward the second end of the tissue suction chamber. 25. The endoscopic tissue suturing device according to claim 24, wherein the suture tag includes a tapered distal end configured to expand the resilient fingers. 26. The endoscopic tissue suturing device according to claim 24, further comprising a cam tube that is configured to open the resilient fingers as the suture tag catch is moved in the first direction. 27. The endoscopic tissue suturing device according to claim 26, wherein the cam tube includes a tapered surface at a first end thereof that is adapted to engage and open the resilient fingers. 28. The endoscopic tissue suturing device according to claim 27, wherein each resilient finger includes a follower that is configured to coact with the tapered surface. 29. The endoscopic tissue suturing device according to claim 28, wherein the follower includes an offset bend in the resilient finger. 30. The endoscopic tissue suturing device according to claim 26, wherein the cam tube is adapted to receive the needle when the needle is extended toward the second end of the tissue suction chamber. 31. The endoscopic tissue suturing device according to claim 22, wherein the resilient fingers are configured to grasp a first end of the suture tag to retain the suture tag in the suture tag catch, the resilient fingers being pulled in the first direction by the suture tag when the suture tag is locked to the needle and the needle is retracted in the first direction toward the first end of the tissue suction chamber, movement of the needle a predetermined distance causes the resilient fingers to open to release the suture tag.
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