Method and apparatus for closing off a portion of a heart ventricle

• US 8,986,189 B2
• Filed: 07/01/2010
• Issued: 03/24/2015
• Est. Priority Date: 06/09/2005
• Status: Active Grant

• Current Assignee: Bioventrix, Inc.
• Original Assignee: Bioventrix, Inc.
• Inventors: Chin, Sing-Fatt, Annest, Lon S.
• Primary Examiner(s): MATTHEWS, CHRISTINE HOPKINS
• Application Number:
  US12/828,974
• Publication Number:
  US 20100268020A1
• Time in Patent Office: 1,727 Days
• Field of Search: 600 16- 18, 600/37, 128/897, 128/899, 606/213, 606/148, 606/232
• US Class Current: 600/37
• CPC Class Codes: A61B 17/0401 Suture anchors, buttons or pledgets, i.e. means for attaching sutures to bone, cartilage or soft tissue; Instruments for applying or removing suture anchors A61B17/0642 takes precedence; fixation devices for tendons or ligaments A61F2/0811
• CPC Class Codes: A61B 17/0469 Suturing instruments for use in minimally invasive surgery, e.g. endoscopic surgery
• CPC Class Codes: A61B 17/06066 Needles, e.g. needle tip configurations making needles B21G1/00
• CPC Class Codes: A61B 17/06166 Sutures suture materials A61L17/00; manufacture of artificial threads D01D; treatment of threads D06M
• CPC Class Codes: A61B 2017/00243 cardiac
• CPC Class Codes: A61B 2017/0404 Buttons
• CPC Class Codes: A61B 2017/0409 Instruments for applying suture anchors for applying suture clamps, clips or locks A61B2017/0488
• CPC Class Codes: A61B 2017/0417 T-fasteners
• CPC Class Codes: A61B 2017/0435 the barbs being separate elements mechanically linked to the anchor, e.g. by pivots
• CPC Class Codes: A61B 2017/047 having at least one proximally pointing needle located at the distal end of the instrument, e.g. for suturing trocar puncture wounds starting from inside the body J-shaped suture needles A61B2017/0608
• CPC Class Codes: A61B 2017/06028 by means of a cylindrical longitudinal blind bore machined at the suture-receiving end of the needle, e.g. opposite to needle tip
• CPC Class Codes: A61B 2017/061 hollow or tubular suture extending inside a hollow needle A61B2017/06052; hollow sutures A61B2017/06185
• CPC Class Codes: A61B 2017/06176 with protrusions, e.g. barbs
• CPC Class Codes: A61B 2017/22054 with two balloons
• CPC Class Codes: A61B 2017/22067 Blocking; Occlusion A61B2017/22054 takes precedence
• CPC Class Codes: A61F 2/2487 Devices within the heart chamber, e.g. splints
• CPC Class Codes: A61M 25/1011 Multiple balloon catheters

Abstract

Apparatus and methods to reduce ventricular volume are disclosed. The device takes the form of a transventricular anchor, which presses a portion of the ventricular wall inward, thereby reducing the available volume of the ventricle. The anchor is deployed using a curved introducer that may be inserted into one ventricle, through the septum and into the opposite ventricle. Barbs or protrusions along the anchor body combined with a mechanical stop and a sealing member hold the device in place once deployed.

Claims

1. An anchor deployment system for performing heart reconstruction, the anchor deployment system comprising:

an elongated body comprising a plurality of protrusions extending from said body, wherein each of the plurality of protrusions comprises a barb,

a mechanical stop member attached to a first end of said body, said mechanical stop member comprising arms pivotally attached to said first end such that each arm pivots between a collapsed configuration and a deployed configuration, and

a sealing member unconnected from the mechanical stop member and attachable to said body,

wherein interaction between the sealing member and the plurality of protrusions facilitates movement of the sealing member along the elongated body toward the mechanical stop member and resists movement of the sealing member along the elongated body away from the mechanical stop member so as to permanently affix the sealing member about said body via the plurality of protrusions.

2. The anchor deployment system of claim 1, in combination with a curved introducer, said curved introducer being configured for insertion through a wall of said heart and said elongated body sized and configured to pass through said curved introducer.

3. The anchor deployment system of claim 1, wherein said sealing member is formed of a resilient material such that said sealing member is configured to seal an opening formed in a wall of said heart by said anchor deployment system.

4. The anchor deployment system of claim 1, wherein the barb of each of the plurality of protrusions comprises a triangular shape.

5. The anchor deployment system of claim 2, wherein said curved introducer comprises a pressure sensor configured to facilitate in determining a position of said curved introducer with respect to said heart by sensing a pressure.

6. The anchor deployment system of claim 2, wherein said curved introducer comprises an electrical sensor configured to sense if a puncture sight comprises viable tissue or infarcted tissue.

7. An anchor deployment system for performing heart reconstruction, the anchor deployment system comprising:

an elongated body comprising a plurality of protrusions, wherein each of the plurality of protrusions comprises a barb,

a mechanical stop member attached to a first end of said body, wherein said mechanical stop member is formed of arms, said arms being pivotally attached to said first end of said body and biased toward an open position such that each arm pivots from a closed position to the open position, and

a sealing member unconnected from the mechanical stop member and attachable to said body, wherein the sealing member is moveable along the elongated body toward the mechanical stop member, and wherein the plurality of protrusions prevent movement of the sealing member along the elongated body away from the mechanical stop member such that the sealing member is permanently affixed about said body via the plurality of protrusions.