Devices, systems, and methods for providing sealable access to a working channel

Patent metadata

Field	Value
Publication number	US-12342987-B2
Application number	US-202217948408-A
Country	US
Kind code	B2
Filing date	Sep 20, 2022
Priority date	Nov 2, 2018
Publication date	Jul 1, 2025
Grant date	Jul 1, 2025

Abstract

The present disclosure relates generally to the field of medical devices. In particular, the present disclosure relates to valve configurations providing sealable access for medical instruments to a working channel, such as a working channel for an endoscope.

First claim

What is claimed is:

1. A device for providing reinforced sealable access to a working channel, the device comprising:
a tubular body having a proximal end, a distal end, and a longitudinal axis, the distal end configured to be removably disposed on a proximal end of the working channel in fluid communication therewith;
an elongated aperture at the proximal end of the body extending along a slit axis and configured to allow one or more medical instruments to be passed therethrough and, at the same time, substantially seal against fluids from the working channel passing therethrough; and
a plurality of reinforcing ribs on each side of the aperture, each reinforcing rib extending along a radius from a center of the aperture to reinforce the aperture against tearing, wherein each reinforcing rib extends 45° or closer to an axis normal to the slit axis and extending along a diameter of the body.

2. The device of claim 1 , further comprising one or more reinforcing ribs extending substantially perpendicular to the slit axis.

3. The device of claim 1 , wherein the reinforcing ribs extending furthest from an axis normal to the slit axis and through the center of the aperture are about 45° from the slit axis.

4. The device of claim 1 , wherein the reinforcing ribs include at least one perpendicular reinforcing rib extending perpendicular to the slit axis, and at least one reinforcing rib about 45° from the perpendicular reinforcing rib on each side of the perpendicular reinforcing rib.

5. The device of claim 1 , wherein none of the reinforcing ribs extends along the slit axis.

6. The device of claim 1 , wherein the reinforcing ribs extend radially in a plane substantially perpendicular to the longitudinal axis.

7. The device of claim 1 , wherein the reinforcing ribs continuously increase in width and thickness as they extend radially away from the aperture.

8. The device of claim 1 , wherein reinforcing ribs extending substantially perpendicular to the aperture have a greater width than the width of reinforcing ribs not extending substantially perpendicular to the aperture.

9. The device of claim 1 , wherein one or more of the reinforcing ribs has a greater thickness than the thickness of one or more of the other of the reinforcing ribs.

10. The device of claim 1 , wherein the tubular body is hollow, and the reinforcing ribs are disposed on a surface internal to the hollow tubular body.

11. The device of claim 1 , wherein a force required to tear the aperture is greater than a force required to tear the aperture without the reinforcing ribs.

12. The device of claim 1 , wherein the plurality of reinforcing ribs extend on a distal surface of the proximal end of the body that is internal to the tubular body.

13. The device of claim 1 , wherein the aperture extends along a centerline axis perpendicular to the longitudinal axis of the body.

14. A device for providing reinforced sealable access to a working channel, the device comprising:
a tubular body having a proximal end, a distal end, and a longitudinal axis, wherein the distal end is configured to be removably disposed on a proximal end of the working channel in fluid communication therewith;
a substantially linear aperture at the proximal end of the body extending along a slit axis and configured to allow one or more medical instruments to be passed therethrough and, at the same time, substantially seal against fluids from the working channel passing therethrough; and
a first reinforcing rib extending substantially perpendicular to the aperture in a first direction away from a first side of the aperture and along an axis normal to the slit axis and extending along a diameter of the body; and
a second reinforcing rib extending substantially perpendicular to the aperture in a second direction opposite the first direction and away from a second side of the aperture and along an axis normal to the slit axis and extending along a diameter of the body.

15. The device of claim 14 , further comprising additional reinforcing ribs extending away from the first side of the aperture.

16. The device of claim 15 , wherein the additional reinforcing ribs extend no more than 45° from the first reinforcing rib.

17. The device of claim 15 , further comprising additional reinforcing ribs and away from the second side of the aperture.

18. The device of claim 17 , wherein the additional reinforcing ribs extending away from the first side of the aperture extend no more than 45° from the first reinforcing rib, and the additional reinforcing ribs extending away from the second side of the aperture extend no more than 45° from the second reinforcing rib.

19. A device for providing reinforced sealable access to a working channel, the device comprising:
a tubular body having a proximal end, a distal end, a longitudinal axis, and an outer perimeter extending about the longitudinal axis, wherein the distal end is configured to be removably disposed on a proximal end of the working channel in fluid communication therewith;
an elongated aperture at the proximal end of the tubular body configured to allow more than one medical instrument to be passed therethrough at the same time and resisting tearing while substantially sealing against fluids from the working channel passing therethrough;
a plurality of reinforcing ribs extending along a direction transverse to the aperture to reinforce the aperture against tearing; and
a reinforcing ridge on the proximal end of the tubular body extending circumferentially about the elongated aperture and the reinforcing ribs to reinforce the elongated aperture against tearing, the reinforcing ridge being spaced inwardly of the outer perimeter of the tubular body and spaced outwardly from the elongated aperture and the reinforcing ribs.

20. The device of claim 19 , wherein the reinforcing ribs continuously increase in width in a direction transverse to the longitudinal axis as they extend radially away from a center of the aperture.

Assignees

• Boston Scientific Medical Device Limited
• Boston Scient Ltd

Inventors

• Aneja Harchetan S
• Bharos Amit
• Upadhyay Swami
• RAJARATHNAM Boopathi

Classifications

• A61B10/04

  Endoscopic instruments, e.g. catheter-type instruments · CPC title

• A61B10/0275

  with sample notch, e.g. on the side of inner stylet · CPC title

• A61B1/00147

  Holding or positioning arrangements · CPC title

• A61B1/00064

  Constructional details of the endoscope body · CPC title

• A61B1/0014

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