Suture cinching and cutting device

Patent metadata

Field	Value
Publication number	US-12023020-B2
Application number	US-202017089634-A
Country	US
Kind code	B2
Filing date	Nov 4, 2020
Priority date	Nov 5, 2019
Publication date	Jul 2, 2024
Grant date	Jul 2, 2024

Abstract

Medical devices for applying a cinch to one or more suture and cutting the suture, and methods for making and using such devices are disclosed. An example medical device may include an elongated shaft, a connection sleeve, a cinch sleeve coupled to the connection sleeve, and a cinch member. An elongated inner shaft may extend through and be longitudinally movable within the elongated shaft, connection sleeve, cinch sleeve, and cinch member.

First claim

What is claimed is:

1. A medical device for applying a cinch to one or more sutures, the medical device comprising:
an elongated shaft defining a shaft lumen;
a connection sleeve having a sleeve lumen and first and second connectors;
a cinch sleeve defining a cinch lumen and having a proximal portion with at least one proximal coupling member configured to releasably engage the second connector of the connection sleeve, the cinch sleeve having a distal position in which the proximal portion is disposed within the sleeve lumen and the at least one proximal coupling member is engaged with the second connector of the connection sleeve;
a coupler connected to the elongated shaft, the coupler having a coupler lumen and a distal end of the coupler defining a distal coupling member, the distal coupling member being configured to releasably engage the first connector of the connection sleeve;
a cinch member defining a cinch member lumen, the cinch member including at least a proximal segment configured to fit within the cinch lumen; and
an elongated inner shaft extending through and longitudinally movable within the shaft lumen, the sleeve lumen, the cinch lumen, and the cinch member lumen.

2. The medical device of claim 1 , wherein the sleeve lumen has a sleeve lumen diameter, the cinch sleeve having an outer surface defining a shoulder, the shoulder having a proximally facing shoulder surface and having a shoulder diameter greater than the sleeve lumen diameter, wherein the proximal portion of the cinch sleeve extends proximal of the shoulder.

3. The medical device of claim 2 , wherein when the cinch sleeve is in the distal position, a gap is defined between the proximally facing shoulder surface and a distally facing end surface of the connection sleeve.

4. The medical device of claim 3 , further comprising an opening through the outer surface of the cinch sleeve into the cinch lumen, and at least one suture cutting element disposed on one or both of the connection sleeve and the opening, and wherein proximal movement of the cinch sleeve from the distal position to a proximal position engages the at least one suture cutting element for cutting one or more sutures extending through the opening.

5. The medical device of claim 4 , wherein when the cinch sleeve moves toward the proximal position, the at least one proximal coupling member disengages from the second connector of the connection sleeve and moves proximally, releasing the distal coupling member of the coupler from the first connector of the connection sleeve.

6. The medical device of claim 1 , wherein a distal end section of the elongated inner shaft is configured to releasably engage the cinch member lumen, wherein proximal longitudinal movement of the elongated inner shaft moves the cinch member from a first configuration in which at least a part of the cinch member is spaced apart from a distal end of the cinch sleeve, to a second configuration in which the cinch member engages the cinch lumen.

7. The medical device of claim 6 , wherein from the second configuration, further proximal longitudinal movement of the elongated inner shaft moves the cinch sleeve proximally such that the at least one proximal coupling member is engaged with the first connector of the connection sleeve, and the distal coupling member of the coupler is disengaged from the connection sleeve, resulting in a third configuration.

8. The medical device of claim 7 , wherein further proximal longitudinal movement of the elongated inner shaft moves the coupled cinch member and cinch sleeve from the third configuration to a fourth configuration in which a cinch assembly including the cinch member, cinch sleeve, and connection sleeve is separated from a shaft assembly including the elongated shaft and the coupler.

9. The medical device of claim 8 , wherein the cinch member lumen has a distal section and a proximal section, wherein a diameter of the distal section is larger than a diameter of the proximal section, wherein the elongated inner shaft includes a distal region having a diameter larger than the diameter of the proximal section of the cinch member lumen, wherein the distal region is compressible such that application of a predetermined amount of proximal longitudinal force compresses the distal region, allowing it to move into the proximal section of the cinch member lumen.

10. The medical device of claim 1 , wherein the first and second connectors are first and second apertures, and the distal coupling member and the at least one proximal coupling members include proximal and distal prongs configured to removably engage the first and second apertures.

11. The medical device of claim 1 , wherein the sleeve lumen has a sleeve lumen diameter, the cinch sleeve having an outer surface defining a shoulder, the shoulder having a proximally facing shoulder surface and having a shoulder diameter greater than the sleeve lumen diameter, wherein the proximal portion of the cinch sleeve extends proximal of the shoulder, wherein when the cinch sleeve is in the distal position, a gap is defined between the proximally facing shoulder surface and a distally facing end surface of the connection sleeve.

12. The medical device of claim 11 , further comprising an opening through the outer surface of the cinch sleeve into the cinch lumen, and at least one suture cutting element disposed on one or both of the connection sleeve and the opening, and wherein proximal movement of the cinch sleeve from the distal position to a proximal position engages the at least one suture cutting element for cutting one or more sutures extending through the opening.

13. The medical device of claim 12 , wherein when the cinch sleeve moves from the distal position to the proximal position, the at least one proximal coupling member disengages from the second connector of the connection sleeve, releasing the connection sleeve from the cinch sleeve.

14. The medical device of claim 13 , wherein a distal end section of the elongated inner shaft is configured to releasably engage the cinch member lumen, wherein proximal longitudinal movement of the elongated inner shaft moves the cinch member from a first configuration in which at least a part of the cinch member is spaced apart from a distal end of the cinch sleeve, to a second configuration in which the cinch member engages the cinch lumen.

15. The medical device of claim 14 , wherein as the cinch member moves from the first configuration to the second configuration, a distal end of the cinch member moves the at least one proximal coupling member out of engagement with the second connector on the connection sleeve.

16. The medical device of claim 15 , wherein further proximal longitudinal movement of the elongated inner shaft moves the coupled cinch member and cinch sleeve from the second configuration to a third configuration in which a cinch assembly including the cinch member, cinch sleeve, and connection sleeve is separated from a shaft assembly including the elongated shaft and the coupler.

Assignees

• Boston Scient Scimed Inc

Inventors

• Deuel Christopher R
• Wales Ryan V
• Fleury Sean P
• Gilbert Stan Robert

Classifications

• A61B2560/04

  Constructional details of apparatus · CPC title

• A61B2017/0488

  Instruments for applying suture clamps, clips or locks · CPC title

• A61B17/0487

  Suture clamps, clips or locks, e.g. for replacing suture knots; Instruments for applying or removing suture clamps, clips or locks (suture anchors A61B17/0401; wound clamps or clips A61B17/08; ligaturing clamps or clips A61B17/122) · CPC title

• A61B17/0467 Primary

  Instruments for cutting sutures (surgical cutting instruments A61B17/32) · CPC title