An endoscopic surgical instrument for deploying a two part fastener having a male fastener part and a female fastener part, includes a tube having a proximal end and a distal end. An end effector is coupled to said distal end of said tube and is configured to hold the male fastener part and the fema
An endoscopic surgical instrument for deploying a two part fastener having a male fastener part and a female fastener part, includes a tube having a proximal end and a distal end. An end effector is coupled to said distal end of said tube and is configured to hold the male fastener part and the female fastener part in opposed relation. An actuator is coupled to said proximal end of said tube and is configured to actuate the end effector. A shearing device may be positioned proximate the end effector to shear off a tip of the male fastener part after the male and female fastener parts are moved into locking relation. In addition, the surgical instrument may include a male fastener part having a shaft with a plurality of detent positions. Further, the male fastener part may include a base and a shaft pivotally connected to the base.
대표청구항▼
1. An endoscopic surgical instrument, comprising: a first arm configured to hold a first tissue fastener;a second arm pivotably coupled to the first arm; the second arm including a proximal end and a distal end opposite the proximal end, the second arm defining a longitudinal dimension between the p
1. An endoscopic surgical instrument, comprising: a first arm configured to hold a first tissue fastener;a second arm pivotably coupled to the first arm; the second arm including a proximal end and a distal end opposite the proximal end, the second arm defining a longitudinal dimension between the proximal end and the distal end;a first finger and a second finger located on the second arm, the first and second fingers being configured to hold a second tissue fastener in a position so that the second tissue fastener engages with the first tissue fastener when the first arm pivots toward the second arm; wherein a distance between the first finger and the second finger is configured to vary through movement of at least one of the first finger or second finger along the longitudinal dimension of the second arm, wherein the first finger is located more distally in the longitudinal dimension of the second arm than the second finger; andan ejector arm configured to move and eject each of the first and second tissue fasteners from the first and second arms after the second tissue fastener engages with the first tissue fastener. 2. The instrument of claim 1, wherein the first and second fingers are configured to release the second tissue fastener after the second tissue fastener engages with the first tissue fastener. 3. The instrument of claim 2, further comprising the first tissue fastener and the second tissue fastener, wherein the first tissue fastener comprises a first disk-like member with a barbed projection, and the second tissue fastener comprises a second disk-like member. 4. The instrument of claim 3, wherein the barbed projection includes a plurality of detent positions. 5. The instrument of claim 3, wherein the second disk-like member includes first and second slots, the first and second fingers being configured to mate respectively with the first and second slots, wherein the first and second slots run parallel to a central axis of the second disk-like member. 6. The instrument of claim 3, wherein the barbed projection is configured to pivot relative to the first disk-like member. 7. The instrument of claim 3, wherein the barbed projection is configured to move between a first position in which the barbed projection is positioned in substantially the same plane as the first disk-like member and a second position in which the barbed projection is positioned substantially perpendicular to the first disk-like member. 8. The instrument of claim 1, further including a shearing device configured to shear off a portion of the first fastener after the first tissue fastener engages with the second tissue fastener. 9. The instrument of claim 8, wherein the shearing device comprises a hole having an edge capable of shearing the portion of the first fastener. 10. The instrument of claim 1, further comprising an elongate tube, a distal end of the elongate tube being coupled to the first and second arms. 11. The instrument of claim 1, wherein surfaces of the second fastener face the first fastener, and each of the first finger and the second finger is positioned between a portion of the surfaces and the first fastener. 12. The instrument of claim 1, wherein the ejector arm is configured to eject the first and second tissue fasteners along the longitudinal dimension of the second arm. 13. The instrument of claim 1, wherein the ejector arm moves the first and second tissue fasteners in a distal direction. 14. An endoscopic surgical instrument, comprising: a first arm having a proximal end and a distal end opposite the proximal end, the first arm defining a longitudinal dimension between the proximal end and the distal end;a second arm pivotably coupled to the first arm;a first finger and a second finger located on the first arm, the first and second fingers on the first arm being configured to hold a first tissue fastener; wherein a distance between the first finger and the second finger is configured to vary through movement of at least one of the first finger or second finger along a longitudinal dimension of the first arm, wherein the first finger on the first arm is located more distally in the longitudinal dimension of the first arm than the second finger on the first arm; anda first finger and a second finger located on the second arm, the first and second fingers being configured to hold a second tissue fastener, wherein, when the second tissue fastener engages with the first tissue fastener, the first finger on the first arm and the second finger on the first arm are in contact with the first tissue fastener, and wherein surfaces of the second tissue fastener face the first tissue fastener, and each of the first finger of the second arm and the second finger of the second arm is between the first tissue fastener and the surfaces of the second tissue fastener facing the first tissue fastener. 15. The instrument of claim 14, further comprising the first tissue fastener and the second tissue fastener, wherein the first tissue fastener includes a barbed projection, and the second tissue fastener includes a hole engageable by the barbed projection, and the barbed projection is configured to engage with the hole of the second tissue fastener when said first arm pivots toward said second arm. 16. The instrument of claim 15, further including an ejector arm configured to eject the first and second tissue fasteners from the first and second arms after engagement. 17. The instrument of claim 14, wherein the second tissue fastener includes a plurality of slots corresponding to said first and second fingers on the second arm. 18. The instrument of claim 15, wherein the first and second fingers on the second arm are configured to release the second tissue fastener after the barbed projection engages with the hole of the second tissue fastener, wherein a distance between the first finger of the second arm and the second finger of the second arm is configured to vary through movement of at least one of the first finger of the second arm or second finger of the second arm along a longitudinal dimension of the second arm. 19. The instrument of claim 14, wherein the first finger on the second arm is located more distally than the second finger of the second arm. 20. The instrument of claim 14, wherein after the second tissue fastener engages with the first tissue fastener, either the first finger of the first arm is configured to move distally or the second finger of the first arm is configured to move proximally. 21. An endoscopic surgical instrument, comprising: a first arm configured to hold a first tissue fastener;a second arm having a proximal end and a distal end opposite the proximal end, the second arm defining a longitudinal dimension between the proximal end and the distal end, the second arm being coupled to the first arm;a first finger and a second finger located on the second arm, the first and second fingers being configured to hold a second tissue fastener in a position so that the second tissue fastener engages with the first tissue fastener to form a locked fastener when the first arm moves toward the second arm; andan ejector arm included on the second arm configured to eject the locked fastener from the first and second arms in a distal direction along the longitudinal dimension. 22. The instrument of claim 21, wherein the first finger is configured to engage a first slot located on a periphery of the second tissue fastener and the second finger is configured to engage a second slot located on the periphery of the second tissue fastener, wherein the first slot and the second slot run parallel to a central axis of the second tissue fastener. 23. The instrument of claim 21, further including a third finger configured to secure the second tissue fastener and located on the second arm. 24. The instrument of claim 21, wherein at least one of the first finger or the second finger overlaps with the second tissue fastener.
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