Suture based closure device

Patent metadata

Field	Value
Publication number	US-12376844-B2
Application number	US-202217729741-A
Country	US
Kind code	B2
Filing date	Apr 26, 2022
Priority date	Apr 26, 2021
Publication date	Aug 5, 2025
Grant date	Aug 5, 2025

Abstract

A medical device includes a mounting structure that is adapted to be secured to a distal end of an endoscope. A first suture arm is pivotably secured to the mounting structure and is adapted to releasably secure a needle that is adapted to puncture tissue while accommodating a suture. A second suture arm is pivotably secured to the mounting structure and is adapted to releasably secure the needle. The first suture arm and the second suture arm cooperate to pass the needle back and forth therebetween along an arcuate path.

First claim

What is claimed is:

1. A medical device, comprising:
a mounting structure adapted to be secured to a distal end of an endoscope;
a first suture arm pivotably secured to the mounting structure via a first pivot point, the first suture arm including:
a first latching member at an end of the first suture arm opposing the first pivot point; and
a first latching feature pivotably secured to the first latching member, the first latching feature pivotable with respect to the first latching member between a latching position, in which a needle is secured between and by the first latching member and the first latching feature, and a release position; and

a second suture arm pivotably secured to the mounting structure via a second pivot point, the second suture arm including:
a second latching member at an end of the second suture arm opposing the second pivot point; and
a second latching feature pivotably secured to the second latching member, the second latching feature pivotable with respect to the second latching member between a latching position, in which a needle is secured between and by the second latching member, and a release position;

wherein the second suture arm is adapted to pivot from a position about 45 degrees from vertical in an outward direction away from the first suture arm to a position about 45 degrees from vertical in an inward direction towards the first suture arm.

2. The medical device of claim 1 , further comprising a first control element operably coupled to the first suture arm such that pulling on the first control element causes the first suture arm to move towards the second suture arm and pushing on the first control element causes the first suture arm to move away from the second suture arm.

3. The medical device of claim 1 , further comprising a second control element operably coupled to the second suture arm such that pulling on the second control element causes the second suture arm to move towards the first suture arm and pushing on the second control element causes the second suture arm to move away from the first suture arm.

4. The medical device of claim 1 , further comprising:
a third control element operably coupled with the first latching feature in order to cause the first latching feature to move between its latching position and its release position; and
a fourth control element operably coupled with the second latching feature in order to cause the second latching feature to move between its latching position and its release position.

5. The medical device of claim 1 , further comprising:
a first rounded pin secured relative to the first latching member and adapted to engage a latching detent of the needle when the needle is disposed between the first latching member and the first latching feature;
a second rounded pin secured relative to the first latching feature and adapted to engage the latching detent of the needle when the first latching feature is in its latching position.

6. The medical device of claim 5 , wherein the first latching member and the first latching feature together define a first lumen adapted to accept the needle when the first latching feature is in its latching position, and the first rounded pin and the second rounded pin extend partially into the first lumen.

7. The medical device of claim 1 , further comprising:
a third rounded pin secured to the second latching member and adapted to engage a latching detent of the needle when the needle is disposed between the second latching member and the second latching feature;
a fourth rounded pin secured to the second latching feature and adapted to engage the latching detent of the needle when the second latching feature is in its latching position.

8. The medical device of claim 7 , wherein the second latching member and the second latching feature in combination define a second lumen adapted to accept the needle when the second latching feature is in its latching position, and the third rounded pin and the fourth rounded pin extend partially into the second lumen.

9. The medical device of claim 1 , wherein the first suture arm is adapted to pivot from a position about 45 degrees from vertical in an outward direction away from the second suture arm to a horizontal position in an inward direction towards the second suture arm.

10. The medical device of claim 9 , wherein the second suture arm is adapted to permit the first suture arm to pivot through the second suture arm as the first suture arm approaches its horizontal position.

11. The medical device of claim 1 , wherein the first suture arm is adapted to pivot from a position about 45 degrees from vertical in an outward direction away from the second suture arm to a position about 45 degrees from vertical in an inward direction towards the second suture arm.

12. A medical device, comprising:
a mounting structure adapted to be secured to a distal end of an endoscope;
a first suture arm having a proximal end pivotably secured to the mounting structure, and a distal end, the first suture arm adapted to releasably secure a needle that is adapted to puncture tissue while accommodating a suture, the first suture arm having a first width; and
a second suture arm having a proximal end pivotably secured to the mounting structure, and a distal end, the second suture arm adapted to releasably secure the needle, the second suture arm having a second width greater than the first width such that the first suture arm is able to pivot through the second suture arm in order to capture a newly delivered needle;
where the first suture arm and the second suture arm together are adapted to pass the needle back and forth therebetween along an arcuate path; and
the second suture arm is adapted to pivot from a position about 45 degrees from vertical in an outward direction away from the first suture arm to a position about 45 degrees from vertical in an inward direction towards the first suture arm.

13. The medical device of claim 12 , wherein the first suture arm is adapted to pivot to a horizontal position in an inward direction towards the second suture arm with a distal end of the first suture arm adjacent the distal end of the endoscope.

14. The medical device of claim 12 , wherein the first suture arm is adapted to pivot from a position about 45 degrees from vertical in an outward direction away from the second suture arm to a position about 45 degrees from vertical in an inward direction towards the second suture arm.

15. The medical device of claim 12 , further comprising a first control element operably coupled to the first suture arm such that pulling on the first control element causes the first suture arm to move towards the second suture arm and pushing on the first control element causes the first suture arm to move away from the second suture arm.

16. The medical device of claim 12 , further comprising a second control element operably coupled to the second suture arm such that pulling on the second control element causes the second suture arm to move towards the first suture arm and pushing on the second control element causes the second suture arm to move away from the first suture arm.

17. The medical device of claim 12 , further comprising:
a third control element operably coupled with the first latching feature in order to cause the first latching feature to move between a latching position and a release position; and
a fourth control element operably coupled with the second latching feature in order to cause the second latching feature to move between a latching position and a release position.

Assignees

• Boston Scient Scimed Inc

Inventors

• Deuel Christopher R
• Bagley Kevin L
• Gilbert Stan Robert

Classifications

• A61B2017/081

  Tissue approximator (A61B2017/1103, A61B17/8866 take precedence) · CPC title

• A61B2017/00367

  Details of actuation of instruments, e.g. relations between pushing buttons, or the like, and activation of the tool, working tip, or the like · CPC title

• A61B2017/00296

  mounted on an endoscope · CPC title

• A61B1/00101

  the distal tip features being detachable · CPC title

• A61B2017/00349

  Needle-like instruments having hook or barb-like gripping means, e.g. for grasping suture or tissue (A61B17/06066 takes precedence) · CPC title