Apparatus and method for deployment of a therapeutic device using a catheter

• US 8,652,163 B2
• Filed: 09/28/2012
• Issued: 02/18/2014
• Est. Priority Date: 02/09/2000
• Status: Expired due to Fees

• Current Assignee: DePuy Synthes Products LLC (Johnson & Johnson)
• Original Assignee: DePuy Synthes Products LLC (Johnson & Johnson)
• Inventors: Padilla, Henry N., Gandhi, Deepak R., Ramzipoor, Kamal
• Primary Examiner(s): Schmidt, Emily
• Assistant Examiner(s): Anderson, Michael J
• Application Number:
  US13/630,800
• Publication Number:
  US 20130023922A1
• Time in Patent Office: 508 Days
• Field of Search: 606/191, 606/192, 606/194, 606/195, 606/198, 606/200, 606/32, 606/108, 623/1.23, 623/1.11, 623/1.12, 623/1.19, 604/114, 604/113, 604/95.05, 604/187, 604/181, 604/200, 604/48, 604/19
• US Class Current: 606/200
• CPC Class Codes: A61B 17/12 for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord specially adapted for vas deferens or fallopian tubes A61F6/20; materials for ligaturing blood vessels A61L17/00
• CPC Class Codes: A61B 17/12113 within an aneurysm
• CPC Class Codes: A61B 17/1214 Coils or wires
• CPC Class Codes: A61B 17/221 Gripping devices in the form of loops or baskets for gripping calculi or similar types of obstructions surgical snare instruments A61B17/32056
• CPC Class Codes: A61B 2017/00411 actuated by application of energy from an energy source outside the body
• CPC Class Codes: A61B 2017/12068 detachable by heat
• CPC Class Codes: A61B 2090/037 with a frangible part, e.g. by reduced diameter

Abstract

The apparatus for deployment of an intravascular therapeutic device, includes an elongated, flexible pusher member and a therapeutic device connected to a severable portion of a first connector member mounted to the flexible pusher member with an elongated second connector member connected to the therapeutic device. The first connector member or second connector member may be capable of being broken by heat, and a heat source is provided for heating and breaking the first connector member or the second connector member to release the therapeutic device.

Claims

1. An apparatus for release and deployment of a therapeutic device within the vasculature of a patient, comprising:

an elongated, flexible pusher member having an interior lumen;

a first connector member mounted to said elongated, flexible pusher member, said first connector member including an induction ring disposed in the interior lumen of the pusher member, said induction ring having an edge portion configured to be heated;

an elongated second connector member connected to a therapeutic device and detachably connected to the first connector member, said elongated second connector member thereby connecting the therapeutic device to the pusher member for placement of the therapeutic device within the vasculature, said second connector member having a severable portion configured to be broken by heating disposed within said elongated, flexible pusher member, said severable portion of said second connector member being positioned in contact with said edge portion of said induction ring for heating said severable portion of said second connector member to cause said severable portion of said second connector member to break and release the elongated second connector member for detaching and deploying the therapeutic device from the flexible pusher member when a desired placement of the therapeutic device within the vasculature is achieved.

2. The apparatus of claim 1, further comprising a control unit, and wherein said induction ring is connected by electrical connectors to the control unit which supplies electrical current to the induction ring.

3. The apparatus of claim 1, wherein said flexible pusher member comprises a heat insulating shaft.

4. The apparatus of claim 1, wherein said pusher member includes an entry port communicating with said interior lumen of said pusher member, and said induction ring is disposed in the interior lumen of the pusher member adjacent to said entry port.

5. The apparatus of claim 1, wherein said elongated second connector member is a connector fiber.

6. The apparatus of claim 1, wherein said elongated second connector member comprises a ribbon.

7. The apparatus of claim 1, wherein said flexible pusher member has a distal tip, and the induction ring is spaced apart from said distal tip of said flexible pusher member.

8. The apparatus of claim 1, wherein said therapeutic device is a vasoocclusive device.

9. The apparatus of claim 1, wherein said therapeutic device comprises a microcoil.