Apparatus for the introduction and manipulation of multiple telescoping catheters

Patent metadata

Field	Value
Publication number	US-12178973-B2
Application number	US-202217992427-A
Country	US
Kind code	B2
Filing date	Nov 22, 2022
Priority date	Nov 7, 2016
Publication date	Dec 31, 2024
Grant date	Dec 31, 2024

Abstract

A delivery apparatus includes a steerable guide sheath. The steerable guide sheath has a steerable portion, a pull ring located in the distal portion, and a pull wire coupled at one end to the pull ring and coupled at the opposite end to a control handle. The pull wire extends longitudinally through a pull-wire conduit. The steerable guide sheath further includes a compression-resistance portion made of metal and located in the distal portion.

First claim

What is claimed is:

1. A steerable guide sheath, comprising:
a steerable portion configured to flex and unflex to adjust the curvature of a distal portion of the guide sheath;
a pull ring located in the distal portion;
a first pull wire coupled at one end to the pull ring and coupled at the opposite end to a control handle, wherein the first pull wire extends longitudinally through a first pull-wire conduit; and
a compression-resistance portion made of metal and located in the distal portion.

2. The steerable guide sheath of claim 1 , wherein the metal is stainless steel, titanium, nickel titanium alloy, or cobalt chromium.

3. The steerable guide sheath of claim 1 , further comprising an adjustment knob located on the control handle, wherein rotating the adjustment knob applies a pulling force on the first pull wire to cause the steerable portion to bend.

4. The steerable guide sheath of claim 1 , wherein the compression resistance portion is disposed opposite the first pull wire conduit.

5. The steerable guide sheath of claim 1 , wherein the compression resistance portion has a thickness less than a thickness of the distal portion.

6. The steerable guide sheath of claim 1 , further comprising a second pull wire coupled at one end to the pull ring and coupled at the opposite end to the control handle, wherein the second pull wire extends longitudinally through a second pull-wire conduit.

7. The steerable guide sheath of claim 6 , wherein a plane bisecting the distal portion and passing between the first and second pull-wire conduit bisects the compression-resistance portion.

8. The steerable guide sheath of claim 1 , further comprising an atraumatic tip portion located distally of the steerable portion.

9. A delivery apparatus for a prosthetic device, comprising:
a steerable guide sheath;
a steerable catheter disposed within the guide sheath;
an implant catheter coaxially disposed within the steerable catheter, wherein the prosthetic device is mounted on a distal end of the implant catheter;
wherein the steerable guide sheath comprises:
a steerable portion configured to flex and unflex to adjust the curvature of a distal portion of the guide sheath;
a pull ring located in the distal portion;
a first pull wire coupled at one end to the pull ring and coupled at the opposite end to a control handle, wherein the first pull wire extends longitudinally through a first pull-wire conduit; and
a compression-resistance portion made of metal and located in the distal portion.

10. The delivery apparatus of claim 9 , wherein the metal is stainless steel, titanium, nickel titanium alloy, or cobalt chromium.

11. The delivery apparatus of claim 9 , further comprising an adjustment knob located on the control handle, wherein rotating the adjustment knob applies a pulling force on the first pull wire to cause the steerable portion to bend.

12. The delivery apparatus of claim 9 , wherein the compression resistance portion is disposed opposite the first pull wire conduit.

13. The delivery apparatus of claim 9 , wherein the compression resistance portion has a thickness less than a thickness of the distal portion.

14. The delivery apparatus of claim 9 , further comprising a second pull wire coupled at one end to the pull ring and coupled at the opposite end to the control handle, wherein the second pull wire extends longitudinally through a second pull-wire conduit.

15. The delivery apparatus of claim 14 , wherein a plane bisecting the distal portion and passing between the first and second pull-wire conduit bisects the compression-resistance portion.

16. The delivery apparatus of claim 9 , further comprising an atraumatic tip portion located distally of the steerable portion.

17. A steerable guide sheath, comprising:
a steerable portion configured to flex and unflex to adjust the curvature of a distal portion of the guide sheath;
a pull ring located in the distal portion;
a first pull wire coupled at one end to the pull ring and coupled at the opposite end to an adjustment knob located on a control handle, wherein the first pull wire extends longitudinally through a first pull-wire conduit;
a second pull wire coupled at one end to the pull ring and coupled at the opposite end to the adjustment knob, wherein the second pull wire extends longitudinally through a second pull-wire conduit; and
a compression-resistance portion made of metal and located in the distal portion opposite the first and second pull wire conduits,
wherein a plane bisecting the distal portion and passing between the first and second pull-wire conduit bisects the compression-resistance portion.

18. The steerable guide sheath of claim 17 , wherein the metal is stainless steel, titanium, nickel titanium alloy, or cobalt chromium.

19. The steerable guide sheath of claim 17 , wherein the compression resistance portion has a thickness less than a thickness of the distal portion.

20. The steerable guide sheath of claim 17 , further comprising an atraumatic tip portion located distally of the steerable portion.

Assignees

• Edwards Lifesciences Corp

Inventors

• Winston Matthew T
• Olson Christopher J
• Metchik Asher L
• Tran Tri D
• Siegel Alexander J

Classifications

• A61M2025/0059

  having means for preventing the catheter, sheath or lumens from collapsing due to outer forces, e.g. compressing forces, or caused by twisting or kinking · CPC title

• A61M2025/015

  Details of the distal fixation of the movable mechanical means · CPC title

• A61M25/005

  with embedded materials for reinforcement, e.g. wires, coils, braids · CPC title

• A61F2/2433

  using balloon catheter · CPC title

• A61F2/2436

  Deployment by retracting a sheath · CPC title