System and method for providing a bone cerclage
A system for providing a bone cerclage according to an exemplary aspect of the present disclosure includes, among other things, a suture passer including a shaft. The shaft includes a passageway and a slot leading to the passageway. The slot has a variable width along a length of the passageway. A method is also disclosed.
1. A system for providing a bone cerclage, comprising:
a suture passer including a shaft, wherein the shaft includes a passageway and a slot leading to the passageway, wherein the passageway extends internally to the shaft between an entrance and an exit distal to the entrance, wherein the passageway includes a main portion between the entrance and the exit, wherein the slot includes a first width adjacent the entrance and a second width along the main portion, and wherein the first width is greater than the second width; and
a sheath and a strand of suture, wherein the strand of suture is attached to the sheath and projects from the sheath, wherein a length of the sheath is longer than a length of the passageway, and wherein the passageway is sized so as to allow the sheath to slide within the passageway from the entrance to the exit.
2. The system as recited in claim 1 , wherein the sheath is more rigid than the strand of suture.
3. The system as recited in claim 1 , wherein the sheath exhibits a larger diameter than the strand of suture.
4. The system as recited in claim 1 , wherein the strand of suture is a first strand of suture and at least one additional strand of suture projects from the sheath.
5. The system as recited in claim 1 , wherein:
the first width is sized so as to permit the sheath and suture to enter the passageway via the slot, and
the second width is sized so as to prevent the sheath from exiting the passageway via the slot and so as to permit suture to exit the passageway via the slot.
6. The system as recited in claim 1 , wherein the slot is provided by a gap in a superior surface of the shaft.
7. The system as recited in claim 1 , wherein:
the shaft includes a curved section, and
the passageway and slot are provided at least partially in the curved section.
8. The system as recited in claim 7 , wherein:
the suture passer includes a handle connected to the shaft, and
the shaft includes a substantially straight section between the handle and the curved section.
9. The system as recited in claim 8 , wherein an entrance to the passageway is provided in the substantially straight section and is spaced-apart proximally from a point at which the substantially straight section meets the curved section.
10. The system as recited in claim 1 , wherein the sheath exhibits a substantially constant diameter along an entire length of the sheath.
11. The system as recited in claim 10 , wherein the sheath is cylindrical.
12. The system as recited in claim 1 , wherein an exit of the passageway is spaced-apart proximally from a distal end of the shaft.
13. The system as recited in claim 12 , wherein the passageway does not extend within a section of the shaft between the exit of the passageway and the distal end of the shaft.
14. The system as recited in claim 13 , wherein the section is made of a material different than a remainder of the shaft.
15. The system as recited in claim 1 , wherein a distal end of the shaft is blunt.
16. The system as recited in claim 1 , wherein an inferior wall of the passageway gradually increases in depth moving distally from the entrance such that, when the sheath comes into contact with the inferior wall, the inferior wall directs the sheath into the main portion of the passageway.
17. The system as recited in claim 1 , wherein a distal end of the sheath is distal to the strand of suture.
18. The system as recited in claim 1 , wherein the sheath is made of a polymer material.
19. The system as recited in claim 18 , wherein the sheath is overmolded to an end of the strand of suture.
20. A system for providing a bone cerclage, comprising:
a suture passer including a shaft, wherein the shaft includes a passageway and a slot leading to the passageway, wherein the slot has a variable width along a length of the passageway; and
a sheath and a strand of suture, wherein the strand of suture is attached to the sheath and projects from the sheath, wherein a length of the sheath is longer than a length of the passageway,
wherein an exit of the passageway is spaced-apart proximally from a distal end of the shaft,
wherein the passageway does not extend within a section of the shaft between the exit of the passageway and the distal end of the shaft, and
wherein the section of the shaft between the exit of the passageway and the distal end of the shaft is bendable such that the section holds a bent shape different from an original shape of the section.