Balloon catheter

Patent metadata

Field	Value
Publication number	US-11007352-B2
Application number	US-201615354509-A
Country	US
Kind code	B2
Filing date	Nov 17, 2016
Priority date	Nov 20, 2015
Publication date	May 18, 2021
Grant date	May 18, 2021

Abstract

Systems, devices, and methods including balloon catheters are described. In one embodiments, a balloon catheter assembly may comprise a tubular member having a proximal portion and a distal portion with a lumen extending between the proximal portion and the distal portion and a balloon member having a proximal waist portion, a distal waist portion, and an expandable region therebetween, the balloon member disposed proximate the distal portion of the tubular member and bonded to tubular member. The assembly may further comprise a first sleeve member covering a first portion of the tubular member and a portion of the balloon member proximal waist portion and a second sleeve member covering a second portion of the tubular member and a portion of the first sleeve member.

First claim

What is claimed:

1. A balloon catheter assembly comprising:
a tubular member having a proximal portion and a distal portion with a lumen extending between the proximal portion and the distal portion;
a balloon member having a proximal waist portion, a distal waist portion, and an expandable region therebetween, the balloon member disposed proximate the distal portion of the tubular member and bonded to the tubular member;
a first sleeve member covering and in direct contact with a first portion of the tubular member and a portion of the balloon member proximal waist portion, wherein a distal end of the first sleeve member is in direct contact with and bonded to the balloon member proximal waist portion; and
a second sleeve member covering and in direct contact with a second portion of the tubular member and a portion of the first sleeve member, wherein a distal end of the second sleeve member is positioned proximal of the distal end of the first sleeve member.

2. The balloon catheter of claim 1 , wherein the second sleeve member does not contact the balloon member directly.

3. The balloon catheter of claim 1 , wherein a melting point of the first sleeve is greater than a melting point of the second sleeve.

4. The balloon catheter of claim 1 , wherein the second sleeve member covers at least part of the first portion of the tubular member.

5. The balloon catheter of claim 1 , wherein the balloon member includes a fiber layer in at least a portion of the balloon member proximal waist portion, and wherein the first sleeve further covers a portion of the fiber layer.

6. The balloon catheter of claim 5 , wherein the first sleeve member is in contact with the fiber layer.

7. The balloon catheter of claim 5 , wherein the balloon member has a burst pressure greater than 1000 psi.

8. The balloon catheter of claim 1 , wherein the first sleeve member covers between 0.1 mm and 1.5 mm of the tubular member.

9. The balloon catheter of claim 1 , wherein the second sleeve member is between 0.5 mm to 5 mm long.

10. The balloon catheter of claim 1 , wherein the first sleeve member comprises a polyethylene terephthalate (PET) material.

11. The balloon catheter of claim 1 , wherein the second sleeve member comprises a polyether block amide (PEBA) material.

12. A balloon catheter assembly comprising:
a tubular member having a proximal portion and a distal portion with a lumen extending between the proximal portion and the distal portion;
a balloon member having a proximal waist portion, a distal waist portion, and an expandable region therebetween, the balloon member disposed proximate the distal portion of the tubular member and bonded to the tubular member;
a first bond bonding the balloon member proximal waist portion to the tubular member, the first bond comprising a first layer on top of the balloon member proximal waist portion and a second layer on top of the first layer,
wherein at least a portion of the first layer directly contacts the tubular member, and a distal end of the first layer directly contacts and is bonded to the balloon member proximal waist portion,
wherein at least a portion of the second layer directly contacts the tubular member; and
wherein a distal end of the second layer is positioned proximal of the distal end of the first layer.

13. The balloon catheter of claim 12 , wherein at least a portion of the second layer extends proximal of a proximal end of the first layer.

14. The balloon catheter of claim 12 , wherein a melting point of the second layer is lower than a melting point of the first layer.

15. The balloon catheter of claim 12 , wherein the first layer of the first bond comprises a polyethylene terephthalate (PET) material.

16. The balloon catheter of claim 12 , wherein the second layer of first bond comprises a polyether block amide (PEBA) material.

Assignees

• Boston Scient Scimed Inc

Inventors

• Prindle Katherine M
• Horn Daniel James
• Munsinger Joel

Classifications

• A61M25/1034 Primary

  Joining of shaft and balloon · CPC title

• A61M2025/1075

  having a balloon composed of several layers, e.g. by coating or embedding · CPC title

• A61M2025/1084

  having features for increasing the shape stability, the reproducibility or for limiting expansion, e.g. containments, wrapped around fibres, yarns or strands · CPC title

• A61M2025/1088

  having special surface characteristics depending on material properties or added substances, e.g. for reducing friction · CPC title

• A61M2025/1081

  having sheaths or the like for covering the balloon but not forming a permanent part of the balloon, e.g. retractable, dissolvable or tearable sheaths · CPC title