Methods and apparatus for fixing sheet-like materials to a target tissue
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61B-017/08
A61B-017/064
A61B-017/068
A61F-002/00
A61F-002/08
A61B-017/04
A61B-017/00
출원번호
US-0988453
(2016-01-05)
등록번호
US-9675346
(2017-06-13)
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 LLP.
인용정보
피인용 횟수 :
1인용 특허 :
304
초록▼
A staple for attaching a sheet-like implant to tissue or bone may include first and second arms, and first and second flukes. In some embodiments, the first arm has a proximal end and a distal end, and the second arm has a proximal end and a distal end. A bridge extends from the proximal end of the
A staple for attaching a sheet-like implant to tissue or bone may include first and second arms, and first and second flukes. In some embodiments, the first arm has a proximal end and a distal end, and the second arm has a proximal end and a distal end. A bridge extends from the proximal end of the first arm to the proximal end of the second arm. The first fluke has a proximal end abutting the distal end of the first arm, and the first fluke extends distally from the first arm. The first fluke has a lateral extent larger than a lateral extent of the first arm and is mounted eccentrically thereto. The first fluke includes a proximal surface projecting at an outward angle in a proximal direction away from the distal end of the first arm to engage the tissue or bone when inserted therein. The second fluke has similar features. This arrangement causes the first and second flukes to rotate in response to a pullout force on the bridge. Methods for attaching a sheet-like implant to a target tissue are also disclosed.
대표청구항▼
1. A system for attaching a sheet-like implant to tissue or bone comprising: a stapler including: a first stake and a second stake located at a distal end of the stapler;each of the first and second stakes including a distal portion, a proximal portion and a shoulder located between the proximal por
1. A system for attaching a sheet-like implant to tissue or bone comprising: a stapler including: a first stake and a second stake located at a distal end of the stapler;each of the first and second stakes including a distal portion, a proximal portion and a shoulder located between the proximal portion and the distal portion;a staple including: a first arm having a proximal end and a distal end;a second arm having a proximal end and a distal end;a bridge element extending between the proximal end of the first arm and the proximal end of the second arm;a first fluke having a proximal end, a proximally facing surface, a distal end, and a distally facing surface, wherein the first fluke defines a first passageway extending into the first fluke from the proximally facing surface of the first fluke;wherein the first fluke is attached to and extends distally from the distal end of the first arm and includes a first barb extending laterally outward beyond the first arm;a second fluke having a proximal end, a proximally facing surface, a distal end, and a distally facing surface, wherein the second fluke defines a second passageway extending into the second fluke from the proximally facing surface of the second fluke;wherein the second fluke is attached to and extends distally from the distal end of the second arm and includes a first barb extending laterally outward beyond the second arm;wherein the first passageway is adapted to receive the distal portion of the first stake of the stapler therein with the shoulder of the first stake abutting the proximally facing surface of the first fluke to allow a distally directed force to be applied by the shoulder of the first stake to the proximally facing surface of the first fluke; andwherein the second passageway is adapted to receive the distal portion of the second stake of the stapler therein with the shoulder of the second stake abutting the proximally facing surface of the second fluke to allow a distally directed force to be applied by the shoulder of the second stake to the proximally facing surface of the second fluke;wherein the proximally facing surface of the first fluke extends at an oblique angle to the first arm and the proximally facing surface of the second fluke extends at an oblique angle to the second arm. 2. The system of claim 1, wherein the first passageway extends to an opening on the distally facing surface of the first fluke and the second passageway extends to an opening on the distally facing surface of the second fluke. 3. The system of claim 2, wherein the first fluke extends distal of the opening on the distally facing surface of the first fluke and the second fluke extends distal of the opening on the distally facing surface of the second fluke. 4. The system of claim 1, wherein the first fluke further comprises a second barb and a notch between the first barb of the first fluke and the second barb of the first fluke. 5. The system of claim 4, wherein the first barb of the first fluke and the second barb of the first fluke extend at an oblique angle relative to the first arm. 6. The system of claim 5, wherein the first and second barbs of the first fluke include the proximally facing surface of the first fluke. 7. The system of claim 4, wherein the second fluke further comprises a second barb and a notch between the first barb of the second fluke and the second barb of the second fluke. 8. The system of claim 7, wherein the first barb of the second fluke and the second barb of the second fluke extend at an oblique angle relative to the second arm. 9. The system of claim 8, wherein the first and second barbs of the second fluke include the proximally facing surface of the second fluke. 10. The system of claim 1, wherein the first passageway is sized and adapted to prevent the proximal portion of the first stake from extending into the first passageway and the second passageway is sized and adapted to prevent the proximal portion of the second stake from extending into the second passageway. 11. The system of claim 1, wherein the distally facing surface of the first fluke extends distal of the first passageway and the distally facing surface of the second fluke extends distal of the second passageway. 12. The system of claim 1, wherein the first arm, the bridge element, the second arm, the first fluke, and the second fluke are integrally formed. 13. The system of claim 1, wherein the first arm, the bridge element, the second arm, the first fluke, and the second fluke are formed from a bioresorbable polymeric material. 14. The system of claim 1, wherein the bridge element forms an arch between the first arm and the second arm. 15. The system of claim 1, wherein the first passageway is located laterally outward of the first arm and the second passageway is located laterally outward of the second arm. 16. The system of claim 1, wherein the first fluke is devoid of barbs or projections extending toward the second fluke and the second fluke is devoid of barbs or projections extending toward the first fluke. 17. A system for attaching a sheet-like implant to tissue or bone comprising: a stapler including: a first stake and a second stake located at a distal end of the stapler;each of the first and second stakes including a distal portion, a proximal portion and a shoulder located between the proximal portion and the distal portion;a staple including: a first arm having a proximal end and a distal end;a second arm having a proximal end and a distal end;a bridge element extending between the proximal end of the first arm and the proximal end of the second arm;a first fluke attached to and extending distally from the distal end of the first arm, the first fluke having a proximal end, a proximally facing surface extending at an oblique angle to the first arm, a distal end, and a distally facing surface, wherein the first fluke defines a first passageway extending into the first fluke from the proximally facing surface of the first fluke, wherein the distally facing surface of the first fluke extends distal of the first passageway;a second fluke attached to and extending distally from the distal end of the second arm, the second fluke having a proximal end, a proximally facing surface extending at an oblique angle to the second arm, a distal end, and a distally facing surface, wherein the second fluke defines a second passageway extending into the second fluke from the proximally facing surface of the second fluke, wherein the distally facing surface of the second fluke extends distal of the second passageway;wherein the first passageway is adapted to receive the distal portion of the first stake of the stapler therein with the shoulder of the first stake abutting the proximally facing surface of the first fluke to allow a distally directed force to be applied by the shoulder of the first stake to the proximally facing surface of the first fluke; andwherein the second passageway is adapted to receive the distal portion of the second stake of the stapler therein with the shoulder of the second stake abutting the proximally facing surface of the second fluke to allow a distally directed force to be applied by the shoulder of the second stake to the proximally facing surface of the second fluke. 18. The system of claim 17, wherein the first fluke is devoid of barbs or projections extending toward the second fluke and the second fluke is devoid of barbs or projections extending toward the first fluke. 19. The system of claim 17, wherein there is a gap between the bridge element and a portion of the stapler connecting the stakes.
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