Devices and methods for delivery of medical tools

Patent metadata

Field	Value
Publication number	US-11730344-B2
Application number	US-202017012298-A
Country	US
Kind code	B2
Filing date	Sep 4, 2020
Priority date	Jul 1, 2016
Publication date	Aug 22, 2023
Grant date	Aug 22, 2023

Abstract

An endoscopic cap assembly may include a sleeve and a cap. The cap may include a cap channel extending along an external surface of the cap. The cap may also include an engagement feature extending radially outwardly from the external surface of the cap.

First claim

We claim:

1. A cap for a medical device, the cap comprising:
a wall defining a central lumen and having an outer circumferential surface wherein the lumen is radially inward of the wall and the outer circumferential surface; and
a feature disposed on and protruding outwardly from the outer circumferential surface of the cap, wherein a distalmost end of the feature is fixed proximal of a distalmost end of the cap, and wherein the feature is configured to receive a snare loop of a medical device about the feature, such that, in at least one configuration of the snare loop, an entirety of the snare loop is positioned to one side of a central longitudinal axis of the central lumen, wherein the wall includes a cap channel distinct from the central lumen, and extending longitudinally along the outer circumferential surface.

2. The cap of claim 1 , wherein the cap channel is configured to receive a sheath of the medical device.

3. The cap of claim 2 , wherein at least a portion of the cap channel is open such that the sheath is only partially circumferentially surrounded by the cap channel.

4. The cap of claim 1 , further comprising an elastomeric sleeve.

5. The cap of claim 4 , wherein the sleeve includes a sleeve channel extending along a length of the sleeve, wherein the sleeve channel is aligned with the cap channel.

6. The cap of claim 5 , wherein the sleeve channel extends along an outer circumferential surface of the sleeve.

7. The cap of claim 4 , wherein the sleeve further includes a pair of arms extending from an outer circumferential surface of the sleeve, and wherein the pair of arms are configured to receive a sheath of the medical device.

8. The cap of claim 1 , wherein the feature includes a post and a head.

9. A cap for a medical device, the cap comprising:
a continuous wall defining a central lumen, having an outer circumferential surface, and a distal end completely surrounding the central lumen; and
a feature disposed on and protruding outwardly from the outer circumferential surface of the cap, proximal of a distalmost end of the cap, and wherein the feature is configured to receive a snare loop of a medical device about the feature, such that, in at least one configuration of the snare loop, an entirety of the snare loop is positioned to one side of a central longitudinal axis of the central lumen, wherein the wall includes a cap channel radially outside of the central lumen.

10. The cap of claim 9 , wherein the cap channel is configured to receive a sheath of the medical device.

11. The cap of claim 10 , wherein at least a portion of the cap channel is open such that the sheath is only partially circumferentially surrounded by the cap channel.

12. The cap of claim 9 , wherein the cap channel extends along the outer circumferential surface.

13. The cap of claim 9 , further comprising an elastomeric sleeve.

14. The cap of claim 13 , wherein the sleeve includes a sleeve channel extending along a length of the sleeve, wherein the sleeve channel is aligned with the cap channel.

15. The cap of claim 14 , wherein the sleeve channel extends along an outer circumferential surface of the sleeve.

16. The cap of claim 13 , wherein the sleeve further includes a pair of arms extending from an outer circumferential surface of the sleeve, and wherein the pair of arms are configured to receive a sheath of the medical device.

17. A cap for a medical device, the cap comprising:
a wall defining a central lumen and having an outer circumferential surface;
an elastomeric sleeve; and
a feature disposed on and protruding outwardly from the outer circumferential surface of the cap, proximal of a distalmost end of the cap, and wherein the feature is configured to receive a snare loop of a medical device about the feature, such that, in at least one configuration of the snare loop, an entirety of the snare loop is positioned to one side of a central longitudinal axis of the central lumen, wherein the wall includes a cap channel extending along a length of the outer circumferential surface, wherein the cap channel is configured to receive a sheath of the medical device, and wherein at least a portion of the cap channel is open such that the sheath is only partially circumferentially surrounded by the cap channel.

18. The cap of claim 17 , wherein the sleeve includes a sleeve channel extending along a length of the sleeve, wherein the sleeve channel is aligned with the cap channel.

19. The cap of claim 18 , wherein the sleeve channel extends along an outer circumferential surface of the sleeve.

20. The cap of claim 17 , wherein the sleeve further includes a pair of arms extending from an outer circumferential surface of the sleeve, and wherein the pair of arms are configured to receive the sheath of the medical device.

Assignees

• Boston Scient Scimed Inc

Inventors

• Wales Ryan
• Smith Paul
• Brechbiel Scott

Classifications

• A61B1/00098 Primary

  Deflecting means for inserted tools · CPC title

• A61B1/0014

  Fastening element for attaching accessories to the outside of an endoscope, e.g. clips, clamps or bands · CPC title

• A61B1/00089 Primary

  Hoods · CPC title

• A61B1/00101

  the distal tip features being detachable · CPC title

• A61B1/00135

  Oversleeves mounted on the endoscope prior to insertion · CPC title