Tissue clip devices, systems, and traction methods

Patent metadata

Field	Value
Publication number	US-12232740-B2
Application number	US-202117475852-A
Country	US
Kind code	B2
Filing date	Sep 15, 2021
Priority date	May 14, 2019
Publication date	Feb 25, 2025
Grant date	Feb 25, 2025

Abstract

The present disclosure pertains to medical devices. More particularly, the present disclosure pertains to tissue clip devices and related systems and methods. In an embodiment, a tissue clip may include a grasper including jaws at a first end, and a spring portion at a second end, and a longitudinal axis extending along a length of the grasper from the first end to the second end, wherein the spring portion is configured to bias the jaws toward each other. A wedge may be slidably disposed between the jaws such that an apex of the wedge is oriented toward the spring portion. A filament may be coupled to the wedge at a first end of the filament and may extend through a channel of the spring portion of the grasper to a second end of the filament.

First claim

What is claimed is:

1. A tissue clip, comprising:
a grasper having a first end and a second end, the grasper including a spring portion at the second end, and jaws at the first end biased toward each other by the spring portion into a closed configuration to grasp tissue;
an actuator mounted with respect to the grasper; and
a loop coupled to the actuator;
wherein the actuator is movable upon movement of a separately formed instrument releasably coupled to the loop to move the actuator relative to the spring portion and the jaws to cause the spring portion to move the jaws from the closed configuration to an open configuration.

2. The clip of claim 1 , further comprising a filament extending away from the clip to a distal end of the filament forming the loop.

3. The clip of claim 2 , further comprising an alignment member at the second end of the grasper, wherein the filament extends through a channel of the alignment member, and wherein the alignment member is configured to align the grasper with a lumen of an instrument sheath.

4. The clip of claim 1 , wherein the actuator is a wedge slidably disposed between the jaws and movable toward the spring portion to cause the jaws to move to the open configuration.

5. A tissue, further comprising:
a grasper having a first end and a second end, the grasper including jaws at the first end biased toward each other into a closed configuration to grasp tissue;
an actuator mounted with respect to the grasper;
a loop coupled to the actuator; and
a filament extending away from the clip to a distal end of the filament forming the loop;
wherein the actuator is movable upon movement of a separately formed instrument releasably coupled to the loop to move the actuator relative to the jaws to cause the jaws to move from the closed configuration to an open configuration.

6. The clip of claim 5 , further comprising an alignment member at the second end of the grasper, wherein the filament extends through a channel of the alignment member, and wherein the alignment member is configured to align the grasper with a lumen of an instrument sheath.

7. The clip of claim 1 , wherein the spring portion is movable into the actuator.

8. The clip of claim 7 , wherein the actuator comprises a capsule into which the spring portion is movable to cause the jaws to move to the open configuration.

9. The clip of claim 1 , wherein the actuator is positioned between the jaws of the grasper.

10. The clip of claim 1 , wherein the grasper is movable into the actuator to cause the jaws to move to the open configuration.

11. The clip of claim 1 , further comprising a hinge coupled to the second end of the grasper.

12. The clip of claim 11 , wherein a first end of the hinge is disposed within a retainer disposed within the second end of the grasper, and a second end of the hinge includes an attachment member configured to attach to a tether.

13. A tissue clip system comprising:
an elongate tether member having a first end and a second end;
a first tissue clip coupled to the first end of the elongate tether member, the first tissue clip comprising a first grasper having a first end and a second end, first jaws at the first end of the first grasper which are biased toward each other, and a first actuator mounted with respect to the first jaws, wherein relative movement of the first actuator with respect to the first jaws causes the first jaws to move from a closed configuration to an open configuration;
a second tissue clip coupled to the second end of the elongate tether member, the second tissue clip comprising a second grasper having a first end and a second end, second jaws at the first end of the second grasper which are biased toward each other, and a second actuator mounted with respect to the second jaws, wherein relative movement of the second actuator with respect to the second jaws causes the second jaws to move from a closed configuration to an open configuration; and
a deployment catheter having an engagement end slidably disposed within a lumen of an instrument sheath and configured to engage at least one of the actuators.

14. The system of claim 13 , where the first grasper of the first tissue clip comprises a first spring portion at the second end of the first grasper biasing the first jaws toward each other.

15. The system of claim 14 , wherein the first actuator of the first tissue clip is movable relative to the first spring portion of the first tissue clip to cause the first spring portion to more the first jaws apart.

16. The system of claim 13 , wherein the first actuator of the first tissue clip is positioned between the first jaws of the first grasper of the first tissue clip.

17. The system of claim 13 , wherein the first grasper of the first tissue clip is movable into the first actuator to cause the first jaws to move to the open configuration.

18. The system of claim 13 , further comprising a first hinge having a first end coupled to the second end of the first grasper of the first tissue clip, and a second end coupled with the elongate tether member.

Assignees

• Boston Scient Scimed Inc

Inventors

• Bagley Kevin L
• Estevez Ramon
• Ibanez Nestor A
• Lee Danny S
• Unger John
• Wales Ryan V
• Riaz Talha

Classifications

• A61B17/128

  for applying or removing clamps or clips · CPC title

• A61B2017/00269

  endoscopic mucosal resection EMR · CPC title

• A61B2017/00818

  Treatment of the gastro-intestinal system · CPC title

• A61B17/1227 Primary

  Spring clips · CPC title

• A61B17/0218 Primary

  for minimally invasive surgery (A61B17/0281, A61B17/0469, A61B17/12013, A61B17/1285, A61B17/29, A61B17/320016 take precedence) · CPC title