HANDLE ASSEMBLY FOR IMPLANT DELIVERY APPARATUS COMPRISING A FORCE LIMITER, A DISPLACEMENT LIMITER AND/OR A BRAKE FRAME ASSEMBLY

• US 20160199206A1
• Filed: 07/31/2014
• Published: 07/14/2016
• Est. Priority Date: 07/31/2013
• Status: Active Grant

• Current Assignee: Venus Medtech (Hangzhou), Inc.
• Original Assignee: Transcatheter Technologies Gmbh
• Inventors: Lim, Hou-Sen, Gotz, Wolfgang
• Granted Patent: US 10,736,744 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A61F 2/2427 Devices for manipulating or deploying heart valves during implantation
• CPC Class Codes: A61F 2/2439 Expansion controlled by filaments
• CPC Class Codes: A61F 2/95 Instruments specially adapted for placement or removal of stents or stent-grafts
• CPC Class Codes: A61F 2/9517 handle assemblies therefor
• CPC Class Codes: A61F 2002/9511 the retaining means being filaments or wires

Abstract

The present invention relates to a handle assembly (100) for an implant delivery device for folding or unfolding at least one medical implant by means of at least one tension thread, wherein the handle assembly (100) comprises a drum (14) for winding the tension thread thereon by rotating the drum (14); a knob (9) to be rotated by a user of the handle assembly (100) in order to fold or unfold the medical implant by tightening or winding the tension thread or by releasing or unwinding the tension thread, the knob (9) being arranged or interconnected with the drum (14) such that the drum (14) may be rotated when the knob (9) is rotated; and a brake frame assembly (25) comprising at least one brake element and at least one spring (256, 257) arranged to act on the brake element such that the brake elements contact one surface of the rear knob (9).

Claims

1. A handle assembly (100) for an implant delivery device for folding or unfolding at least one medical implant by means of at least one tension thread, wherein the handle assembly (100) comprises:

a drum (14) for winding the tension thread thereon by rotating the drum (14);

a knob (9) to be rotated by a user of the handle assembly (100) in order to fold or unfold the medical implant by tightening or winding the tension thread or by releasing or unwinding the tension thread, the knob (9) being arranged or interconnected with the drum (14) such that the drum (14) may be rotated when the knob (9) is rotated; and

a brake frame assembly (25) comprising at least one brake element and at least one spring (256, 257) arranged to act on the brake element such that the brake elements contact one surface of the knob (9).

2. The handle assembly (100) according to claim 1, wherein the brake frame assembly (25) is configured and arranged to brake a rotation of the knob (9) or to prevent the unintended rotation thereof.

3. The handle assembly (100) according to claim 2, wherein the at least one brake element is arranged on a frame (251, 252) of the brake frame assembly (25) such that the brake element may pivot with respect to the frame (251, 252).

4. The handle assembly (100) according to claim 1, wherein the brake frame assembly (25) is arranged inside the knob (9).

5. The handle assembly (100) according to claim 1, wherein the brake frame assembly (25) has two brake elements arranged opposite to each other.

6. An implant delivery apparatus comprising at least one handle assembly (100) according to claim 1.

7. The implant delivery apparatus according to claim 6, designed or embodied as a catheter, in particular a heart catheter, or comprising such a catheter.

8. The implant delivery apparatus according to claim 6, comprising at least one implant connected with tension threads for the purpose of folding and/or unfolding or provided or prepared for being connected with tension threads.

9. The implant delivery apparatus according to claim 8, wherein the implant is a stent or a heart valve arrangement.

10. The handle assembly (100) according to claim 2, wherein the brake frame assembly (25) is arranged inside the knob (9).

11. The handle assembly (100) according to claim 2, wherein the brake frame assembly (25) has two brake elements arranged opposite to each other.

12. The implant delivery apparatus according to claim 7, comprising at least one implant connected with tension threads for the purpose of folding and/or unfolding or provided or prepared for being connected with tension threads