Guide catheter with reinforcing member

Patent metadata

Field	Value
Publication number	US-2021290896-A1
Application number	US-202117199246-A
Country	US
Kind code	A1
Filing date	Mar 11, 2021
Priority date	Mar 23, 2020
Publication date	Sep 23, 2021
Grant date	—

Abstract

Example medical devices are disclosed. An example medical device includes an elongate member having a proximal end region, a distal end region and an outer surface. The medical device also includes a plurality of filaments braided together in a first braided pattern along a first braided region of the elongate member, wherein the plurality of filaments extend continuously to a second braided region along the elongate member, wherein the plurality of filaments along the second braided region form a second braided pattern different from the first braided pattern.

First claim

What is claimed is:

1 . A medical device, comprising:
an elongate member having a proximal end region, a distal end region and an outer surface; a plurality of filaments braided together in a first braided pattern along a first braided region of the elongate member, wherein the plurality of filaments extend continuously to a second braided region along the elongate member, wherein the plurality of filaments along the second braided region form a second braided pattern different from the first braided pattern.

2 . The medical device of claim 1 , wherein the plurality of filaments continuously transition from the first braided pattern to the second braided pattern along a transition region.

3 . The medical device of claim 2 , wherein the transition region includes a length between 0.040 inches and 0.060 inches.

4 . The medical device of claim 1 , wherein the filaments forming the first braided pattern are interwoven in a diamond—half load braid pattern.

5 . The medical device of claim 1 , wherein the filaments forming the first braided pattern are interwoven in a herringbone braid pattern.

6 . The medical device of claim 1 , wherein the plurality of filaments of the first braided region define a first pitch angle, and wherein the plurality filaments of the second braided region define a second pitch angle different from the first pitch angle.

7 . The medical device of claim 1 , wherein a first filament of the plurality of filaments extends parallel to a second filament of the plurality of filaments to form a first pair of filaments in the second braided region.

8 . The medical device of claim 7 , wherein a third filament of the plurality of filaments extends parallel to a fourth filament of the plurality of filaments to form a second pair of filaments in the second braided region.

9 . The medical device of claim 8 , wherein the first pair of filaments is interwoven with the second pair of filaments in the second braided region.

10 . The medical device of claim 9 , wherein the first pair of filaments is interwoven with the second pair of filaments in diamond—full load braid pattern.

11 . The medical device of claim 1 , wherein the plurality of filaments are disposed along the outer surface of the elongate tubular member.

12 . A guide catheter, comprising:
an elongate shaft having a lumen, an outer surface and a plurality of reinforcing wires disposed along the outer surface; wherein the plurality of reinforcing wires are interwoven in a first braided pattern along a first braided region of the elongate shaft, and wherein the plurality of reinforcing wires extend continuously to a second braided region, and wherein the plurality of reinforcing wires of the second braided region form a second braided pattern different from the first braided pattern.

13 . The guide catheter of claim 12 , wherein the plurality of reinforcing wires continuously transition from the first braided pattern to the second braided pattern along a transition region.

14 . The guide catheter of claim 12 , wherein the reinforcing wires forming the first braided pattern are interwoven in a diamond—half load braid pattern.

15 . The guide catheter of claim 12 , wherein the reinforcing wires forming the first braided pattern are interwoven in a herringbone braid pattern.

16 . The guide catheter of claim 12 , wherein a first wire of the plurality of reinforcing wires extends parallel to a second wire of the plurality of reinforcing wires to form a first pair of wires in the second braided region.

17 . The guide catheter of claim 16 , wherein a third wire of the plurality of wires extends parallel to a fourth wire of the plurality of reinforcing wires to form a second pair of wires in the second braided region.

18 . The guide catheter of claim 17 , wherein the first pair of wires is interwoven with the second pair of wires in the second braided region.

19 . The guide catheter of claim 18 , wherein the first pair of filaments is interwoven with the second pair of filaments in diamond—full load braid pattern.

20 . A method of manufacturing a guide catheter, the method comprising:
attaching a plurality of wires to an outer surface of an elongate member, wherein the plurality of wires forms a first braided pattern along a first braided region of the elongate member, and wherein the plurality of wires forms a second braided pattern along a second braided region of the elongate member, wherein the second braided pattern is different from first braided pattern, and wherein the plurality of wires extends continuously from the first braided region to the second braided region.

Assignees

• Boston Scient Scimed Inc

Inventors

• Tassoni Jr Anthony Frank
• Rubesch Timothy Lawrence
• Pepin Henry J
• Gupta Ajay

Classifications

• A61M25/0053 Primary

  having a variable stiffness along the longitudinal axis, e.g. by varying the pitch of the coil or braid · CPC title

• A61M25/0012

  with embedded structures, e.g. coils, braids, meshes, strands or radiopaque coils · CPC title

• A61M25/005 Primary

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

• A61M25/0054

  with regions for increasing flexibility · CPC title