Devices and methods for delivery of medical tools
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.
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.