Medical device control mechanism and methods of use

Patent metadata

Field	Value
Publication number	US-12414678-B2
Application number	US-202217815618-A
Country	US
Kind code	B2
Filing date	Jul 28, 2022
Priority date	Aug 3, 2021
Publication date	Sep 16, 2025
Grant date	Sep 16, 2025

Abstract

A medical device including a handle including an actuation device, a sheath extending from the handle and having a longitudinal axis, the sheath defining an imaging lumen extending from the handle to a distal end of the sheath, an imaging device at a distal end of the sheath, and a piezoelectric member connected to the imaging device, where movement of the piezoelectric member moves the imaging device in a first direction relative to the longitudinal axis.

First claim

What is claimed is:

1. A medical device, comprising:
a handle including an actuation device;
a sheath extending from the handle and having a longitudinal axis, the sheath defining an imaging lumen extending from the handle to a distal end of the sheath;
an imaging device at the distal end of the sheath;
a first plate positioned within the imaging lumen;
a second plate positioned within the imaging lumen; and
a piezoelectric member, wherein a proximal end of the piezoelectric member is connected to the first plate, wherein a distal end of the piezoelectric member is connected to the second plate, wherein movement of the piezoelectric member moves the imaging device in a first direction relative to the longitudinal axis;
wherein the piezoelectric member expands from a first position, wherein the distal end of the piezoelectric member is disposed proximal to an opening in a distalmost end of the imaging lumen, to a second position, where the distal end of the piezoelectric member is positioned distal to the opening.

2. The device of claim 1 , wherein the first plate fluidly seals a proximal end of the imaging lumen from a distal end of the imaging lumen, and wherein the piezoelectric member is connected to a distal facing surface of the first plate.

3. The device of claim 1 , wherein the second plate is a flexible member fluidly sealing an opening at the distal end of the imaging lumen, wherein the distal end of the piezoelectric member is connected at a proximal facing surface of the flexible member, wherein the imaging device is connected to a distal facing surface of the flexible member, and wherein movement of the piezoelectric member causes the flexible member to bend relative to the longitudinal axis.

4. The device of claim 1 , wherein the distal end of the piezoelectric member is connected to the imaging device, and wherein movement from the first position to the second position moves the imaging device from a position proximal to the distal end of the sheath to a position distal of the distalmost end of the sheath.

5. The device of claim 1 , further comprising a second piezoelectric member including a proximal end and a distal end, wherein movement of the second piezoelectric member moves the imaging device in a second direction relative to the longitudinal axis, different from the first direction, and wherein the sheath further comprises a working channel extending from the handle and terminating at an opening at a distalmost end of the sheath.

6. The device of claim 5 , wherein a viewing area of the imaging device includes a portion of the opening of the working channel when the imaging device is moved in one of the first direction or the second direction.

7. The device of claim 5 , wherein the imaging device includes at least one of an imager and a light emitting element.

8. The device of claim 5 , wherein the second plate is a flexible member fluidly sealing an opening at the distal end of the imaging lumen, wherein the distal end of each of the piezoelectric members is connected at a proximal facing surface of the flexible member, wherein the imaging device is connected to a distal facing surface of the flexible member, wherein movement of the piezoelectric members causes the flexible member to bend relative to the longitudinal axis such that the imaging device can image the opening in the working channel and a radially outer surface of a distal end face of the sheath.

9. The device of claim 8 , wherein the piezoelectric members are configured to bend the flexible member in the first direction and the second direction at a same time.

10. The device of claim 9 , further comprising a plurality of imaging devices, wherein a first imaging device from the plurality of imaging devices images the opening at a same time a second imaging device from the plurality of imaging devices images the radially outer surface of the distal end face.

11. The device of claim 1 , wherein the piezoelectric member is in a rest state when a voltage or current is not supplied to the piezoelectric member, and wherein the piezoelectric member changes at least one of a shape, a size, or a direction when the voltage or current is supplied to the piezoelectric member.

12. A method, comprising:
inserting a shaft of an insertion device into a body via an opening, wherein the insertion device includes a proximal plate, a distal plate at a distal end of the shaft, an imaging device connected to the distal plate, and at least one piezoelectric member extending from a first end connected to a proximal plate to a second end connected to the distal plate;
advancing the insertion device so that a distal end of the insertion device is adjacent to a target site;
supplying a voltage to the at least one piezoelectric member to change a viewing angle of the imaging device, wherein the viewing angle is changed toward or away from a central longitudinal axis of the insertion device; and
advancing the insertion device so that a distal end of the insertion device is adjacent to a target site;
supplying a voltage to the at least one piezoelectric member to change a viewing angle of the imaging device, wherein the viewing angle is changed toward or away from a central longitudinal axis of the insertion device; and
advancing a medical instrument through a lumen of the insertion device and out of an opening in a distal end of the insertion device to perform a medical procedure;
wherein the piezoelectric member expands from a first position, wherein the distal end of the piezoelectric member is disposed proximal to an opening in a distalmost end of the imaging lumen, to a second position, where the distal end of the piezoelectric member is positioned distal to the opening.

13. The method of claim 12 , wherein the at least one piezoelectric member includes at least a first piezoelectric member and a second piezoelectric member, and wherein the method further comprises:
supplying a first voltage to the first piezoelectric member to cause a first portion of the insertion device to be angled at a first angle relative to the central longitudinal axis; and
supplying a second voltage, different from the first voltage, to the second piezoelectric member to cause a second portion of the insertion device, different from the first portion, to be angled at a second angle relative to the central longitudinal axis, wherein the second angle is different from the first angle.

14. The method of claim 13 , wherein the distal plate is a flexible membrane connected to a perimeter of the lumen.

15. The method of claim 14 , wherein the imaging device is positioned on a distal face of the flexible membrane.

Assignees

• Boston Scient Scimed Inc

Inventors

• Walak Steven E
• Stanford Bridget
• Khanchandani Priya Vasdev
• O'Shaughnessy Seamus Finbarr
• Zupkofska Michael E
• Bourassa Heather

Classifications

• A61B1/06

  with illuminating arrangements · CPC title

• A61B1/05

  characterised by the image sensor, e.g. camera, being in the distal end portion · CPC title

• A61B1/018

  for receiving instruments · CPC title

• A61B1/015

  Control of fluid supply or evacuation · CPC title

• A61B1/008

  Articulations · CPC title