Method and apparatus for minimally invasive treatment of chronic venous insufficiency

• US 5,810,847 A
• Filed: 03/06/1997
• Issued: 09/22/1998
• Est. Priority Date: 12/30/1994
• Status: Expired due to Term

• Current Assignee: Tyco Healthcare Group LP (Medtronic Plc)
• Original Assignee: VNUS Medical Technologies Incorporated (Medtronic Plc)
• Inventors: Montgomery, H. DuBose, Laufer, Michael D.
• Primary Examiner(s): Buiz, Michael Powell
• Assistant Examiner(s): Shai, Daphna
• Application Number:
  US08/812,758
• Time in Patent Office: 565 Days
• Field of Search: 606/108, 606/139, 606/142, 606/143, 606/151, 606/152, 606/158, 606/191, 606/232, 606/200, 623/2
• US Class Current: 606/142
• CPC Class Codes: A61B 17/122 Clamps or clips , e.g. for the umbilical cord for the vas deferens A61F6/206
• CPC Class Codes: A61F 2/2475 Venous valves

Abstract

The invention is embodied in an appliance or a prosthesis and a delivery catheter for use in a vein for minimally invasive treatment of chronic venous insufficiency. The system and method of the invention eliminate the need for open surgical valve repair procedures, obviate the need for arm vein transplantation into the leg, and allow patients to return to their former active lifestyles without the limitations currently associated with the treatment of this condition. An incompetent valve to be repaired is identified by injected contrast through the delivery catheter or similar means and the catheter is positioned at that valve, a clip appliance or similar prosthesis is deployed from the catheter and affixed to the valve. Next, the delivery catheter is repositioned and appliances or prostheses are deployed on sequentially lower valves until all desired valves are repaired and functionally competent.

Claims

1. A catheter for delivering an appliance into a vein, the catheter comprising:

a first elongate tubular member configured for traversing a vein of a patient;

means for securing the appliance to a distal end of said elongate tubular member;

means for removing the appliance from a distal end of said catheter, wherein said means for removing is manipulated from a proximal end of said elongate tubular member; and

means for adjustably securing the appliance to the cusp of a valve in the vein.

2. The catheter of claim 1, further comprising means for deploying a plurality of appliances.

3. The catheter of claim 2, wherein said means for deploying includes a capsule for retaining the plurality of appliances;

and

means for removing one of the plurality of appliances from the capsule and deploying the appliance into a vein and proximate a valve.