DELIVERY SYSTEM, METHOD, AND ANCHOR FOR MEDICAL IMPLANT PLACEMENT

• US 20140207153A1
• Filed: 03/19/2014
• Published: 07/24/2014
• Est. Priority Date: 12/05/2009
• Status: Active Grant

• Current Assignee: UIM Pressure Implant Incorporated
• Original Assignee: Integrated Sensing Systems Incorporated
• Inventors: Najafi, Nader, Goetzinger, David Joseph, Baranowski, Jacek Ryszard, Morgan-Leonard, Catherine Hook
• Granted Patent: US 9,468,408 B2
• Time in Patent Office: Days
• US Class Current: 606/142
• CPC Class Codes: A61B 2560/066 catheters therefor
• 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 5/6869 Heart
• CPC Class Codes: A61B 5/6876 Blood vessel
• CPC Class Codes: A61B 5/6882 Anchoring means
• CPC Class Codes: A61F 2/243 Deployment by mechanical expansion
• CPC Class Codes: A61F 2/2493 Transmyocardial revascularisation [TMR] devices
• CPC Class Codes: A61M 25/02 Holding devices, e.g. on the body
• CPC Class Codes: A61M 25/04 in the body, e.g. expansible A61M25/10, A61M16/0488 take precedence
• CPC Class Codes: A61M 39/0247 Semi-permanent or permanent transcutaneous or percutaneous access sites to the inside of the body peritoneal dialysis catheters A61M1/285; tracheostomy devices A61M16/0465; measuring pressure within the body A61B5/03; colostomy devices A61F5/445; gastrotomy feeding tubes A61J15/0015; means for fixing a feeding tube outside of the body A61J15/0053

Abstract

A delivery system and method for placing a medical implant, such as for diagnosing, monitoring and/or treating cardiovascular diseases. The delivery system includes a hollow catheter, an anchor coupled to the catheter, and an implant secured within the anchor. The anchor has a base portion with first and second longitudinal ends and a cage therebetween. The anchor further has flexible arms, flexible legs, features for securing the medical implant within the cage of the base portion, and a coupler portion connected to and spaced apart from the second longitudinal end of the base portion. Surfaces of the arms and legs are adapted to clamp the anchor to a wall. The system further includes a pusher wire adapted to cause the anchor to acquire a stowed configuration in which the legs axially extend from the base portion, permitting the anchor to be retrieved after its deployment.

Claims

1. A delivery system comprising a hollow catheter, an anchor coupled to the catheter, and an implant secured within the anchor, the anchor having stowed and deployed configurations and comprising:

a base portion having a longitudinal axis and comprising first and second longitudinal ends in oppositely-disposed first and second longitudinal directions, respectively, of the anchor, and a cage between the first and second longitudinal ends, the medical implant being secured within the cage of the base portion so that at least a portion of the implant is between the first and second longitudinal ends of the base portion;

a coupler portion releasably coupled to the catheter and connected to and spaced apart from the second longitudinal end of the base portion in the second longitudinal direction of the anchor;

a plurality of flexible arms and legs that, in the stowed configuration of the anchor, axially extend from the first and second longitudinal ends, respectively, of the base portion, the arms and legs being resiliently biased so that, in the deployed configuration of the anchor, the arms radially project away from the longitudinal axis of the base portion and axially project toward the second longitudinal end of the base portion and the legs project radially away from the longitudinal axis of the base portion and axially project toward the first longitudinal end of the base portion; and

means for articulating movement of the anchor relative to the catheter in directions transverse to the longitudinal axis of the anchor.

2. The delivery system according to claim 1, wherein the articulating means comprises:

longitudinal slots defined in the coupler portion, each of the longitudinal slots having a recess therein and being contiguous with an end of the coupler portion farthest from the base portion;

connectors projecting from the catheter, received in the longitudinal slots, and engaging the recesses in the longitudinal slots; and

means for causing differential movement of the connectors to cause articulation of the anchor relative to the catheter.

3. The delivery system according to claim 2, wherein the connectors of the catheter are operable to decouple from the coupler portion by moving in radially outward directions from the coupler portion to disengage the recesses of the longitudinal slots.