Apparatus and method for compressing body tissue

• US 6,911,032 B2
• Filed: 09/21/2001
• Issued: 06/28/2005
• Est. Priority Date: 11/18/1999
• Status: Expired due to Term

• Current Assignee: Boston Scientific Scimed, Inc. (Boston Scientific Corporation)
• Original Assignee: Scimed Life Systems Incorporated (Boston Scientific Corporation)
• Inventors: Adams, Mark L., Monroe, Mark, Jugenheimer, Kristin A., Durgin, Russell F. Jr.
• Primary Examiner(s): Dawson, Glenn K.
• Application Number:
  US09/957,356
• Publication Number:
  US 20020062130A1
• Time in Patent Office: 1,376 Days
• Field of Search: 606/151, 606/142, 606/143, 606/139, 606/157, 600/104, 600/158
• US Class Current: 606/142
• CPC Class Codes: A61B 17/0057 Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect sutures A61B17/04; closing rectum or urethra near body surface A61F2/0009
• CPC Class Codes: A61B 17/083 Clips, e.g. resilient
• CPC Class Codes: A61B 17/122 Clamps or clips , e.g. for the umbilical cord for the vas deferens A61F6/206
• CPC Class Codes: A61B 17/1227 Spring clips
• CPC Class Codes: A61B 17/128 for applying or removing clamps or clips
• CPC Class Codes: A61B 17/1285 for minimally invasive surgery
• CPC Class Codes: A61B 2017/00539 hydraulically
• CPC Class Codes: A61B 2017/00544 pneumatically
• CPC Class Codes: A61B 2017/00557 inflatable A61B2017/22051 takes precedence
• CPC Class Codes: A61B 2017/2837 with a locking ratchet
• CPC Class Codes: A61B 2017/2943 Toothed members, e.g. rack and pinion

Abstract

A system and method for delivering a surgical clip to a surgical site within a patient'"'"'s body to compress body tissue is disclosed. In one embodiment for the system of the present invention, the system includes an endoscopic device that has an endoscope cap disposed on a distal end of the endoscopic device. A surgical clip is removably disposed on an outside surface of the endoscope cap. A deployment device is associated with the surgical clip for deploying the surgical clip from the endoscope cap to the body tissue that is to be compressed. The surgical clip can be a deformable clip that is deployed in a non deformed configuration, and is then deformed so as to apply compression on selected tissue. The surgical clip can be a multi legged clip, having a plurality of legs that can be locked in a closed position to apply compression to body tissue.

Claims

1. A device for endoscopically deploying a hemostatic clip adapted to grasp tissue in a deformed configuration, comprising:

a body adapted to fit on a distal end of an endoscope and to contain the clip;

a fulcrum portion cooperating with the body and the clip, the fulcrum portion having a first position in contact with hinge points of the clip and a second position releasing the clip from the body; and

an actuator exerting a force on push points of the clip to deform the clip, wherein, in the first position, the fulcrum portion retains the clip against the force exerted by the actuator to facilitate deformation of the clip wherein the fulcrum portion retains the clip in the body when in the first position.

2. The device according to claim 1, wherein the actuator ejects the clip from the body after deformation.

3. The device according to claim 1, further comprising a second actuator to move the fulcrum portion between the first and second positions.

4. The device according to claim 3, wherein the actuator and second actuator are linked.

5. The device according to claim 3, wherein the actuator and second actuator are integrally formed.

6. The device according to claim 1, wherein the actuator comprises at least a piston pushing the push points of the clip.

7. The device according to claim 6, wherein the piston is actuated hydraulically.

8. The device according to claim 1, wherein the hemostatic clip is adapted to deform about the hinge points.

9. The device according to claim 8, wherein the clip is substantially ring shaped.

10. The device according to claim 9, wherein the clip comprises a serrated tissue grasping edge.

11. The device according to claim 1, wherein the fulcrum portions extend from the hinge points of the clip.

12. The device according to claim 11, wherein the fulcrum portions are deformable when subject to a force greater than a deformation force of the clip.

13. The device according to claim 1, wherein the fulcrum portion is formed to resiliently retain one of the first and second positions.

14. A device for endoscopically deploying a hemostatic clip adapted to grasp tissue in a deformed configuration, comprising:

a body adapted to fit on a distal end of an endoscope and to contain the clip;

a fulcrum portion cooperating with the body and the clip, the fulcrum portion having a first position in contact with hinge points of the clip and a second position releasing the clip from the body;

an actuator exerting a force on push points of the clip to deform the clip, wherein, in the first position, the fulcrum portion retains the clip against the force exerted by the actuator to facilitate deformation of the clip; and

further comprising a second actuator to move the fulcrum portion between the first and second positions

wherein the second actuator is a sliding sleeve actuated by a cable.

15. A device for endoscopically deploying a hemostatic clip adapted to grasp tissue in a deformed configuration, comprising:

a body adapted to fit on a distal end of an endoscope and to contain the clip;

a fulcrum portion cooperating with the body and the clip, the fulcrum portion having a first position in contact with hinge points of the clip and a second position releasing the clip from the body; and

an actuator exerting a force on push points of the clip to deform the clip, wherein, in the first position, the fulcrum portion retains the clip against the force exerted by the actuator to facilitate deformation of the clip

wherein the clip comprises two push points and two hinge points alternating along a circumference of the clip.

16. A device for endoscopically deploying a hemostatic clip adapted to grasp tissue in a deformed configuration, comprising:

a body adapted to fit on a distal end of an endoscope and to contain the clip;

a fulcrum portion cooperating with the body and the clip, the fulcrum portion having a first position in contact with hinge points of the clip and a second position releasing the clip from the body;

an actuator exerting a force on push points of the clip to deform the clip, wherein, in the first position, the fulcrum portion retains the clip against the force exerted by the actuator to facilitate deformation of the clip wherein the fulcrum portion is formed to resiliently retain one of the first and second positions; and

,

further comprising a removable retainer to selectively retain the fulcrum portion in the other of the first and second position.

17. A device for endoscopically deploying a hemostatic clip adapted to grasp tissue in a deformed configuration, comprising:

a body adapted to fit on a distal end of an endoscope and to contain the clip;

a fulcrum portion cooperating with the body and the clip, the fulcrum portion having a first position in contact with hinge points of the clip and a second position releasing the clip from the body;

an actuator exerting a force on push points of the clip to deform the clip, wherein, in the first position, the fulcrum portion retains the clip against the force exerted by the actuator to facilitate deformation of the clip; and

,

further comprising a second actuator to move the fulcrum portion between the first and second positions wherein the fulcrum portion is attached to the sliding sleeve.

18. The device according to claim 17, wherein the fulcrum portion moves along cam surfaces of the sliding sleeve.

19. A device for endoscopically deploying a hemostatic clip adapted to grasp tissue in a deformed configuration, comprising:

a body adapted to fit on a distal end of an endoscope and to contain the clip;

a fulcrum portion cooperating with the body and the clip, the fulcrum portion having a first position in contact with hinge points of the clip and a second position releasing the clip from the body; and

an actuator exerting a force on push points of the clip to deform the clip, wherein, in the first position, the fulcrum portion retains the clip against the force exerted by the actuator to facilitate deformation of the clip further comprising protrusions axially extending along the body.