Methods and apparatus for delivering staples to a target issue
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61B-017/064
A61B-017/068
A61F-002/00
A61F-002/08
A61B-017/04
출원번호
US-0889687
(2013-05-08)
등록번호
US-9095337
(2015-08-04)
발명자
/ 주소
Euteneuer, Charles L.
McCarville, Rebecca
Frion, Duane
Zenz-Olson, Nathaniel
Feehan, Diane M.
출원인 / 주소
Rotation Medical, Inc.
대리인 / 주소
Seager, Tufte & Wickhem LLC
인용정보
피인용 횟수 :
6인용 특허 :
285
초록▼
A device for attaching a sheet-like implant to a target tissue includes a pilot member and a staple push rod. In some embodiments, the pilot member has a distal end and at least a pair of prongs extending from the distal end. The prongs are configured to form pilot holes when the distal end of the p
A device for attaching a sheet-like implant to a target tissue includes a pilot member and a staple push rod. In some embodiments, the pilot member has a distal end and at least a pair of prongs extending from the distal end. The prongs are configured to form pilot holes when the distal end of the pilot member is pressed against the target tissue. The staple push rod is disposed within at least a portion of the pilot member and slidable relative thereto. The staple push rod includes at least a pair of stakes. Each stake is dimensioned to engage a surface of a staple to apply pushing forces thereto. Each stake is positioned relative to a prong along an inner surface of the pilot member so that the stakes advance into the pilot holes when the stakes are moved in a distal direction. Methods for attaching a sheet-like implant to a target tissue are also disclosed
대표청구항▼
1. A method for attaching a sheet-like implant to a target tissue, comprising the steps of: piercing the target tissue with a first prong and a second prong of a pilot member of a device to create a first pilot hole and a second pilot hole, the pilot member of the device having a distal end, the fir
1. A method for attaching a sheet-like implant to a target tissue, comprising the steps of: piercing the target tissue with a first prong and a second prong of a pilot member of a device to create a first pilot hole and a second pilot hole, the pilot member of the device having a distal end, the first prong and the second prong extending from the distal end of the pilot member,the device further including a staple push rod carrying a staple, the staple having a first leg having a proximal end and a distal end, and a second leg having a proximal end and a distal end with a bridge extending from the proximal end of the first leg to the proximal end of the second leg and staple retention means proximate the distal end of each leg wherein the staple push rod longitudinally engages the staple;positioning the distal end of the first leg near the first pilot hole and positioning the distal end of the second leg near the second pilot hole;advancing the staple push rod in a distal direction so that the push rod applies pushing forces to the staple to advance at least a portion of the first leg and the second leg in a distal direction and into the pre-formed pilot holes with the staple retention means engaging the tissue walls of the pilot holes for retention. 2. The method of claim 1, wherein the pushing force is applied to a surface on each leg of the staple proximate its distal end. 3. The method of claim 1, wherein the pushing force has a direction that is generally parallel to a central axis of the first and second pilot holes. 4. The method of claim 1, wherein the legs are advanced into the pilot holes while the prongs are disposed in the pilot holes. 5. The method of claim 1, further comprising the step of moving the pilot member in a proximal direction relative to the target tissue until a distal end of the first prong is located proximal of the first leg and a distal end of the second prong is located proximal of the second leg. 6. The method of claim 5, wherein moving the pilot member in a proximal direction relative to the target tissue comprises producing relative motion between the staple push rod and the pilot member while applying a distally directed force to the pilot member. 7. The method of claim 1, wherein the step of advancing the staple push rod in a distal direction comprises actuating a mechanism that produces relative motion between the staple push rod and the pilot member while applying a distally directed force to the pilot member. 8. A method for attaching a sheet-like implant to a target tissue, comprising the steps of: piercing the target tissue with a first prong of a pilot member of a device to create a first pilot hole and piercing the target tissue with a second prong of the pilot member of the device to create a second pilot hole,the pilot member having a distal end, the first prong and the second prong extending from the distal end of the pilot member,the device further including a staple push rod carrying a staple, the staple comprising a first arm having a proximal end and a distal end, and a second arm having a proximal end and a distal end with a bridge extending from the proximal end of the first arm to the proximal end of the second arm, a first fluke of the staple having a proximal end abutting the distal end of the first arm, and a second fluke of the staple having a proximal end abutting the distal end of the second arm;the staple push rod of the device including a pair of stakes, each stake having a distal portion and a proximal portion, each distal portion extending into a passage defined by a fluke, each proximal portion having a width larger than a width of each distal portion so that a shoulder of each proximal portion contacts a proximal surface of a fluke;positioning the first fluke near the first pilot hole and positioning the second fluke near the second pilot hole;advancing the staple push rod in a distal direction so that the stakes apply pushing forces to the flukes causing the flukes to advance into the pilot holes and causing the first arm, the second arm, and the bridge to be placed in tension, the first arm providing a first reaction force when placed in tension and the second arm providing a second reaction force when placed in tension;the pushing forces and reaction forces cooperating to produce a moment applied to each fluke, the moment applied to each fluke causing each fluke to rotate so that each fluke assumes a locked position in which the longitudinal axis of each fluke is skewed relative to a longitudinal axis of the pilot member. 9. The method of claim 8, wherein: a first moment having a first direction is applied to the first fluke;a second moment having a second direction is applied to the second fluke;the first direction is different from the second direction. 10. The method of claim 9, wherein the first direction is generally opposite the second direction. 11. The method of claim 9, wherein the first direction is a clockwise direction and the second direction is a counter-clockwise direction. 12. The method of claim 8, wherein a first pushing force is applied to the proximal surface of the first fluke at a location that is offset from the first arm. 13. The method of claim 12, wherein the first pushing force has a direction that is generally parallel to a central axis of the first pilot hole. 14. The method of claim 8, wherein the flukes are advanced into the pilot holes while the prongs are disposed in the pilot holes. 15. The method of claim 8, further comprising the step of moving the pilot member in a proximal direction relative to the target tissue until a distal end of the first prong is located proximal of the first fluke and a distal end of the second prong is located proximally of the second fluke. 16. The method of claim 15, wherein moving the pilot member in a proximal direction relative to the target tissue comprises producing relative motion between the staple push rod and the pilot member while applying a distally directed force to the pilot member. 17. The method of claim 15, wherein the first fluke assumes a first locking position and the second fluke assumes a second locking position while a distal end of the first prong is located proximal of the first fluke and a distal end of the second prong is located proximally of the second fluke. 18. The method of claim 8, wherein the step of advancing the staple push rod in a distal direction comprises producing relative motion between the staple push rod and the pilot member while applying a distally directed force to the pilot member.
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이 특허에 인용된 특허 (285)
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