Balloon catheter assembly

Patent metadata

Field	Value
Publication number	US-11097084-B2
Application number	US-201916266562-A
Country	US
Kind code	B2
Filing date	Feb 4, 2019
Priority date	Sep 19, 2014
Publication date	Aug 24, 2021
Grant date	Aug 24, 2021

Abstract

A dilation catheter comprises a handle, a guidewire, a dilation catheter, a guidewire movement mechanism, and dilation catheter movement actuator. The guidewire movement mechanism is configured to translate to thereby cause translation of the guidewire relative to the handle. The dilation catheter movement mechanism is configured to translate to thereby cause translation of the dilation catheter relative to the handle. The guidewire movement mechanism also includes a rotation mechanism configured to impart rotation upon the guidewire. The rotation mechanism may include features configured to limit the amount that the guidewire may rotate. The rotation mechanism may also include features configured to convert linear movement of an actuator into rotational movement of the guidewire. The dilation catheter may include features configured to provide for side entry of the guidewire into the dilation catheter.

First claim

We claim:

1. A dilation catheter system, wherein the dilation catheter system comprises:
(a) a handle extending along a longitudinal axis between a first proximal end and a first distal end;
(b) a dilation assembly, wherein the dilation assembly comprises:
(i) a dilator,
(ii) a dilation catheter in fluid communication with the dilator, and
(iii) a dilation catheter movement body coupled with the dilation catheter, wherein the dilation catheter movement body is slidably attached to the handle along a path such that the dilation catheter movement body is configured to translate relative to the handle to thereby actuate the dilation assembly relative to the handle; and

(c) a guidewire assembly, wherein the guidewire assembly comprises:
(i) a guidewire, and
(ii) a guidewire movement body operatively coupled to the guidewire, wherein the guidewire movement body is slidably attached to the handle along the path independently of the dilation catheter movement body, wherein at least a first portion of the guidewire movement body is configured to actuate distally past the dilation catheter movement body, wherein at least a second portion of the guidewire movement body is configured to actuate proximally past the dilation catheter movement body.

2. The dilation catheter system of claim 1 , wherein the dilation catheter movement body defines an opening, wherein the guidewire movement body is configured to actuate along the path through the opening.

3. The dilation catheter system of claim 2 , wherein the opening and the guidewire movement body define a gap.

4. The dilation catheter system of claim 2 , wherein the dilation movement body comprises a second proximal end and a second distal end, wherein the opening extends between the second proximal end and the second distal end.

5. The dilation catheter system of claim 4 , wherein the first portion of the guidewire movement body comprises a third distal end, wherein the second portion of the guidewire movement body comprises a third proximal end, wherein the third distal end of the guidewire movement body extends distally past the dilation movement body when the third proximal end is housed within the opening of the dilation movement body.

6. The dilation catheter system of claim 5 , wherein the third proximal end of the guidewire movement body extends proximally past the dilation movement body when the third distal end is housed within the opening of the dilation movement body.

7. The dilation catheter system of claim 1 , wherein the handle further comprises a shaft housing the dilation catheter.

8. The dilation catheter system of claim 7 , wherein the dilation catheter movement body is slidably coupled with the shaft via an opening.

9. The dilation catheter system of claim 8 , wherein the handle further comprises an elongate track, wherein the dilation catheter movement body defines an elongate recess slidably coupled with the elongate track.

10. The dilation catheter system of claim 9 , wherein the elongate track comprises a triangular cross-sectional profile.

11. The dilation catheter system of claim 7 , wherein at least a portion of the guidewire is coaxial with the dilation catheter and the shaft.

12. The dilation catheter system of claim 7 , wherein the shaft is rigid.

13. The dilation catheter system of claim 1 , wherein the handle further comprises a pair of longitudinally extending bodies, wherein the guidewire movement body is slidably attached to the pair of longitudinally extending bodies.

14. The dilation catheter system of claim 13 , wherein the pair of longitudinally extending bodies comprise a pair of rods.

15. The dilation catheter system of claim 14 , wherein the handle further comprises a proximal cap attached to the pair of rods.

16. The dilation catheter system of claim 13 , wherein the pair of longitudinally extending bodies comprises a rectangular track.

17. A dilation catheter system, wherein the dilation catheter system comprises:
(a) a handle extending along a longitudinal axis between a first proximal end and a first distal end;
(b) a dilation assembly, wherein the dilation assembly comprises:
(i) a dilator,
(ii) a dilation catheter in fluid communication with the dilator, and
(iii) a dilation catheter movement body defining an opening, wherein the dilation catheter movement body is slidably attached to the handle such that the dilation catheter movement body is configured to translate relative to the handle to thereby actuate the dilation assembly relative to the handle; and

(c) a guidewire assembly, wherein the guidewire assembly comprises:
(i) a guidewire, and
(ii) a guidewire movement body operatively coupled with the guidewire, wherein the guidewire movement body is slidably attached to the handle such that the guidewire movement body may translate through the opening of the dilation catheter movement body.

18. The dilation catheter system of claim 17 , wherein the guidewire movement body comprises a first end and a second end, wherein the guidewire movement body comprises a length such that when the first end is housed within the opening, the second end extends out of the opening.

19. The dilation catheter system of claim 17 , wherein the dilation catheter movement body and the guidewire movement body are configured to translate along the same path.

20. A dilation catheter system, wherein the dilation catheter system comprises:
(a) a handle extending along a longitudinal axis between a first proximal end and a first distal end;
(b) a dilation assembly, wherein the dilation assembly comprises:
(i) a dilator,
(ii) a dilation catheter in fluid communication with the dilator, and
(iii) a dilation catheter movement body slidably attached to the handle such that the dilation catheter movement body may translate relative to the handle to thereby actuate the dilation assembly relative to the handle; and

(c) a guidewire assembly, wherein the guidewire assembly comprises:
(i) a guidewire, and
(ii) a guidewire movement body operatively coupled with the guidewire, wherein the guidewire movement body is slidably attached to the handle independently of the dilation catheter movement body such that the guidewire movement body is configured to translate distally and proximally past the dilation catheter movement body.

Assignees

• Acclarent Inc

Inventors

• Ha Hung V
• Lin Arthur M
• Jenkins Thomas R
• Kesten Randy J
• Chamness Scott O
• Muni Ketan P

Classifications

• A61M2025/09116

  Design of handles or shafts or gripping surfaces thereof for manipulating guide wires · CPC title

• A61M2025/09125

  Device for locking a guide wire in a fixed position with respect to the catheter or the human body · CPC title

• A61M2029/025

  characterised by the guiding element · CPC title

• A61M2210/0681

  Sinus (maxillaris) · CPC title

• A61M29/02 Primary

  Dilators made of swellable material {(balloon catheters for angioplasty A61M25/104)} · CPC title