Medical device including a hemostatis clip

Patent metadata

Field	Value
Publication number	US-12070227-B2
Application number	US-202217715908-A
Country	US
Kind code	B2
Filing date	Apr 7, 2022
Priority date	Apr 7, 2021
Publication date	Aug 27, 2024
Grant date	Aug 27, 2024

Abstract

An example medical device is disclosed. The example medical device includes a shaft having a proximal end region, a distal end region and an outer surface. The medical device also includes a hemostasis clip coupled to the outer surface of the distal end region of the shaft, wherein the hemostasis clip is configured to shift between an open position and a closed position. Further, the medical device includes a tension member coupled to the hemostasis clip, wherein actuation of the tension member shifts the hemostasis clip between the open position and the closed position.

First claim

What is claimed is:

1. A medical device, comprising:
a shaft having a proximal end region, a distal end region and an outer circumferential surface;
a hemostasis clip coupled to the outer circumferential surface of the distal end region of the shaft at a location proximal of a distalmost end of the shaft, wherein the hemostasis clip is configured to shift between an open position and a closed position;
a tension member coupled to the hemostasis clip;
wherein actuation of the tension member shifts the hemostasis clip between the open position and the closed position.

2. The medical device of claim 1 , wherein the hemostasis clip includes an upper jaw pivotable to a lower jaw, and wherein the tension member is coupled to a portion of the upper jaw.

3. The medical device system of claim 2 , wherein the upper jaw includes an aperture, and wherein the tension member extends through the aperture.

4. The medical device of claim 3 , further comprising a shear member, and wherein the shear member is coupled to the upper jaw, the tension member, or both the upper jaw and the tension member.

5. The medical device of claim 4 , wherein the shear member is coupled to the tension member at a welded connection, and wherein moving the shear member relative to the tension member severs the welded connection to separate the tension member from the shear member.

6. The medical device of claim 4 , wherein a rivet couples the shear member to the tension member, and wherein moving the shear member relative to the tension member severs the rivet to separate the tension member from the shear member.

7. The medical device of claim 2 , wherein the lower jaw is held in fixed position relative to the upper jaw as the upper jaw is pivoted relative to the lower jaw.

8. The medical device of claim 2 , further comprising a cap disposed along the distal end region of the shaft, and wherein the hemostasis clip is releasably attached to an outer surface of the cap.

9. The medical device of claim 8 , wherein the cap includes a first projection, and wherein the hemostasis clip includes a curved portion configured to engage the first projection.

10. The medical device of claim 9 , wherein a portion of the shear member engages a portion of the first projection.

11. The medical device of claim 8 , wherein the cap includes a connection member configured to translate from a first position to a second position, and wherein shifting the connection member from the first position to the second position releases the hemostasis clip from the cap.

12. The medical device of claim 11 , further comprising a release member coupled to the connection member, and wherein retracting the release member translates the connection member from the first position to the second position.

13. An endoscope, comprising:
a handle;
a shaft coupled to the handle, the shaft having a proximal end region, a distal end region and an outer surface;
a cap disposed along the distal end region of the shaft;
a hemostasis clip releasably attached to an outer circumferential surface of the cap, wherein the hemostasis clip is configured to shift between an open position and a closed position;
a tension member coupled to the hemostasis clip;
wherein actuation of the tension member shifts the hemostasis clip between the open position and the closed position.

14. The medical device of claim 13 , wherein the hemostasis clip includes an upper jaw pivotable to a lower jaw, and wherein the tension member is coupled to a portion of the upper jaw.

15. The medical device system of claim 14 , wherein the upper jaw includes an aperture, and wherein the tension member extends through the aperture.

16. The medical device of claim 15 , further comprising a shear member, and wherein the shear member is coupled to the upper jaw, the tension member, or both the upper jaw and the tension member.

17. The medical device of claim 14 , wherein the lower jaw is held in fixed position relative to the upper jaw as the upper jaw is rotated relative to the lower jaw.

18. The medical device of claim 13 , wherein the cap includes a first projection, and wherein the hemostasis clip includes a curved portion configured to engage the first projection.

19. The medical device of claim 18 , wherein the upper jaw pivots relative to the lower jaw about the first projection.

20. A method of attaching a hemostasis clip to a target tissue, the method comprising:
advancing an endoscope to the target tissue, the endoscope including:
a shaft having a proximal end region, a distal end region and an outer surface;
a hemostasis clip coupled to the outer surface of the distal end region of the shaft, wherein the hemostasis clip is configured to shift between an open position and a closed position; and
a tension member coupled to the hemostasis clip;

retracting the tension member to shift the hemostasis clip to the open position;
engaging the hemostasis clip with the target tissue; and
releasing the tension member to shift the hemostasis clip to the closed position.

Assignees

• Boston Scient Scimed Inc

Inventors

• JAGELSKI Matthew Robert
• Evers Ryan
• Ryan Shawn

Classifications

• A61B2017/12004

  for haemostasis, for prevention of bleeding · CPC title

• A61B17/1227 Primary

  Spring clips · CPC title

• A61B17/1285 Primary

  for minimally invasive surgery · CPC title

• A61B2017/00296

  mounted on an endoscope · CPC title