Method for anchoring a medical device between tissue

• US 20020077555A1
• Filed: 06/08/2001
• Published: 06/20/2002
• Est. Priority Date: 12/18/2000
• Status: Active Grant

• Current Assignee: Biosense, Inc. (Cardinal Health, Inc.)
• Original Assignee: Biosense, Inc. (Cardinal Health, Inc.)
• Inventors: Schwartz, Yitzhack
• Granted Patent: US 6,746,404 B2
• Time in Patent Office: Days
• US Class Current: 600/486
• CPC Class Codes: A61B 1/00148 using anchoring means
• CPC Class Codes: A61B 2560/0219 of externally powered implanted units
• CPC Class Codes: A61B 2562/0233 Special features of optical sensors or probes classified in A61B5/00
• CPC Class Codes: A61B 2562/046 in a matrix array
• CPC Class Codes: A61B 5/0031 Implanted circuitry
• CPC Class Codes: A61B 5/0215 by means inserted into the body catheters A61M25/00
• CPC Class Codes: A61B 5/076 Permanent implantations telemetry using implanted circuitry A61B5/0031; implanted stimulators for therapy A61N1/3605, A61N1/362, A61N1/372
• CPC Class Codes: A61B 5/6882 Anchoring means
• CPC Class Codes: Y10S 128/903 Radio telemetry

Abstract

A method for implanting a medical device between tissue comprises the steps of providing a catheter having a body and a distal end thereof wherein the catheter includes an implantable device comprising a housing having a proximal end and a distal end and a longitudinal axis. The implantable device further includes a first set of anchoring members operatively connected to the proximal end of the housing and a second set of anchoring members operatively connected to the distal end of the housing. Both sets of anchoring members are movable between a collapsed position and a deployed position. Each set of anchoring members includes ring members connected to a housing of the device. Further steps of the method include inserting the distal end of the catheter into tissue and disposing the medical device at least partially from the distal end of the catheter. The first set of anchoring members are moved from the collapsed position to the deployed position and one side of the tissue is engaged with the tissue engaging surfaces of each ring member of the first set of anchoring member. The medical device is further disposed completely from the distal end of the catheter wherein the second set of anchoring members are moved from the collapsed position to the deployed position and the other side of the tissue is engaged with the tissue engaging surfaces of each ring member of the second set of anchoring members.

Claims

1. A method for implanting a medical device between tissue, the method comprising the steps of:

providing a catheter having a body and a distal end thereof, the catheter including an implantable medical device comprising a housing having a proximal end and a distal end and having a longitudinal axis;

a first set of anchoring members operatively connected to the proximal end of the housing;

a second set of anchoring members operatively connected to the distal end of the housing;

the first set of anchoring members and the second set of anchoring members being movable between a collapsed position and a deployed position, the collapsed position being defined as a position whereby the first set of anchoring members and the second set of anchoring members are substantially parallel to the longitudinal axis of the housing and the deployed position being defined as a position whereby the first set of anchoring members and the second set of anchoring members are substantially perpendicular to the longitudinal axis of the housing, and wherein each anchoring member of the first set of anchoring members and the second set of anchoring members comprise a ring member, each ring member having a tissue engaging surface thereon;

inserting the distal end of the catheter into tissue;

disposing the medical device at least partially from the distal end of the catheter and moving the first set of anchoring members from the collapsed position to the deployed position;

engaging one side of the tissue with the tissue engaging surface of each ring member of the first set of anchoring members;

further disposing the medical device completely from the distal end of the catheter and moving the second set of anchoring members from the collapsed position to the deployed position; and

engaging another side of the tissue with the tissue engaging surface of each ring member of the second set of anchoring members.

2. The method according to claim 1, wherein the first set of anchoring members are resiliently moved from the collapsed position to the deployed position.

3. The method according to claim 2, wherein the second set of anchoring members are resiliently moved from the collapsed position to the deployed position.

4. The method according to claim 3, further comprising maintaining the first set of anchoring members and the second set of anchoring members in the collapsed position approximately ranging between 0°

-30°

to the longitudinal axis of the catheter.

5. The method according to claim 4, further comprising deploying the first set of anchoring members and the second set of anchoring members to the deployed position approximately ranging between 40°

-90°

to the longitudinal axis of the catheter.

6. The method according to claim 5, further comprising disposing of the medical device from the distal end of the catheter with a deployment mechanism.

7. The method according to claim 5, further comprising deploying the medical device in heart tissue.

8. The method according to claim 7, further comprising deploying the medical device in the septum.