Perivascular leak repair system

• US 7,577,477 B2
• Filed: 04/29/2004
• Issued: 08/18/2009
• Est. Priority Date: 04/30/2003
• Status: Active Grant

• Current Assignee: Medtronic Vascular, Inc. (Medtronic Plc)
• Original Assignee: Medtronic Vascular, Inc. (Medtronic Plc)
• Inventors: Brin, David S., Coppin, Chris M., Allen, Jeffrey W.
• Primary Examiner(s): Deak; Leslie R
• Assistant Examiner(s): Wiest; Phil
• Application Number:
  US10/835,189
• Publication Number:
  US 20040249413A1
• Time in Patent Office: 1,937 Days
• Field of Search: 606213-215, 606169-171, 604/537, 604 19- 22, 604/49, 604/4.01, 604/5.01, 604 65- 67, 604/214, 600/202, 623 21- 219
• US Class Current: 604/21
• CPC Class Codes: A61B 17/00491 Surgical glue applicators surgical adhesives A61L24/00; two-component delivery syringes A61M5/19
• CPC Class Codes: A61B 2017/00243 cardiac
• CPC Class Codes: A61B 2017/00783 Valvuloplasty
• CPC Class Codes: A61F 2/2409 Support rings therefor, e.g. for connecting valves to tissue annuloplasty rings A61F2/2442

Abstract

The perivascular leak repair system, and method of using the same, of the present invention provides a sealant reservoir with a repair catheter operably attached; a flow control device disposed between the sealant reservoir and the repair catheter, and the flow control device responsive to a flow control signal; a heart phase detector generating a diastole phase signal; an injection switch generating a injection signal; and a flow controller responsive to the diastole phase signal and the injection signal, and generating the flow control signal. A method of sealing a perivascular leak comprises identifying the perivascular leak; inserting a repair catheter to the perivascular leak; injecting sealant at the perivascular leak; and removing the repair catheter. The sealant can be injected when the heart is in diastole to sweep the sealant into the perivascular leak.

Claims

1. A perivascular leak repair system for use with a heart comprising:

a sealant reservoir;

a repair catheter, the repair catheter being operably attached to the sealant reservoir;

a flow control device, the flow control device being disposed between the sealant reservoir and the repair catheter, and being responsive to a flow control signal;

a heart phase detector, the heart phase detector being configured to generate a diastole phase signal;

an injection switch, the injection switch being configured to generate a injection signal; and

a flow controller, the flow controller being responsive to the diastole phase signal and the injection signal, and being configured to generate the flow control signal;

wherein the flow control device is configured to permit flow of sealant from the sealant reservoir during diastole and to prevent the flow of the sealant from the sealant reservoir during systole.

2. The system of claim 1 further comprising an injection amount selector, the injection amount selector being configured to generate an injection amount signal, wherein the flow controller is responsive to the injection amount signal.

3. The system of claim 1 wherein the heart phase detector is configured to monitor heartbeat using input from a device selected from the group consisting of a pressure sensor disposed on the repair catheter, a Doppler echo probe disposed on the repair catheter, and an electrocardiogram.

4. The system of claim 1 wherein the sealant reservoir is pressurized and the flow control device is a valve.

5. The system of claim 1 wherein the flow control device is a pump.

6. The system of claim 1 wherein the repair catheter is steerable.

7. The system of claim 1 further comprising a filter disposed on the repair catheter 40.

8. The system of claim 1 further comprising a pressure sensor disposed on the repair catheter.

9. The system of claim 1 further comprising a Doppler echo probe disposed on the repair catheter.

10. The system of claim 1 further comprising an emboli detector.