Catheter device with longitudinally expanding interior components for compressing cancellous bone

• US 10,314,634 B2
• Filed: 11/03/2015
• Issued: 06/11/2019
• Est. Priority Date: 11/04/2014
• Status: Active Grant

• Current Assignee: Avantec Vascular Corporation (Nipro Corporation)
• Original Assignee: Avantec Vascular Corporation (Nipro Corporation)
• Inventors: Thi Tieu, Yen Hai, Phan, Kim, DeBeer, Nicholas
• Primary Examiner(s): Gibson, Eric S
• Application Number:
  US14/931,787
• Publication Number:
  US 20160120584A1
• Time in Patent Office: 1,316 Days
• CPC Class Codes: A61B 17/8855 inflatable, e.g. kyphoplasty balloons

Abstract

Systems, devices, and methods are provided for a catheter device for use in a medical procedure wherein the interior of the catheter device expands to accommodate longitudinal expansion of the expandable member to compress cancellous bone.

Claims

1. An apparatus for compacting cancellous bone during a procedure comprising:

a first tube with a beveled distal end;

a second tube with a proximal end distal to the beveled distal end of the first tube;

a third tube in which the first tube and second tube are located; and

an expandable member with a proximal end secured proximal to the beveled distal end of the first tube and a distal end secured distal to the proximal end of the second tube;

wherein the first tube is operable to deliver inflation medium into the expandable member through the beveled distal end, and

wherein the second tube moves in a distal direction from the beveled distal end of the first tube during inflation of the expandable member.

2. The apparatus of claim 1, wherein the third tube is bonded to the expandable member.

3. The apparatus of claim 1, wherein the third tube is pellethane.

4. The apparatus of claim 1, wherein the second tube moves in a proximal direction toward the beveled distal end of the first tube during deflation of the expandable member.

5. The apparatus of claim 1, wherein the expandable member expands in a longitudinal direction in addition to a radial direction upon inflation.

6. The apparatus of claim 1, wherein inflation medium is introduced into an interior of the balloon using an actuator.

7. The apparatus of claim 1, wherein first and second ends of the expandable member are bonded directly to the third tube.

8. The apparatus of claim 1, wherein the third tube is elastic and stretches during inflation of the expandable member and contracts during deflation of the expandable member.

9. The apparatus of claim 1, wherein the balloon has a plurality of pleats.

10. The apparatus of claim 1, further comprising a shim.