Instrument port

• US 20080249504A1
• Filed: 01/08/2008
• Published: 10/09/2008
• Est. Priority Date: 04/06/2007
• Status: Abandoned Application

• Current Assignee: Transcardiac Therapeutics Incorporated
• Original Assignee: Transcardiac Therapeutics Incorporated
• Inventors: Hoyns, Dirk, Rahme, Amin, Lattouf, Omar M., Hall, Larry
• Application Number:
  US12/006,967
• Publication Number:
  US 20080249504A1
• Time in Patent Office: Days
• US Class Current: 604/511
• CPC Class Codes: A61B 17/0218 for minimally invasive surgery A61B17/0281, A61B17/0469, A61B17/12013, A61B17/1285, A61B17/29, A61B17/320016 take precedence
• CPC Class Codes: A61B 17/3421 Cannulas
• CPC Class Codes: A61B 17/3423 Access ports, e.g. toroid shape introducers for instruments or hands access sites for liquids A61M39/0247
• CPC Class Codes: A61B 17/3462 with means for changing the diameter or the orientation of the entrance port of the cannula, e.g. for use with different-sized instruments, reduction ports, adapter seals expandable cannulas A61B17/3417
• CPC Class Codes: A61B 17/3498 Valves therefor, e.g. flapper valves, slide valves haemostasis valves A61M39/06; check valves A61M39/24
• CPC Class Codes: A61B 18/02 by cooling, e.g. cryogenic techniques devices for cooling specific reflex points of the body within cell-life limits A61H39/06
• CPC Class Codes: A61B 18/1492 having a flexible, catheter-like structure, e.g. for heart ablation A61B18/1477 takes precedence
• CPC Class Codes: A61B 18/18 by applying electromagnetic radiation, e.g. microwaves radiation therapy A61N5/00
• CPC Class Codes: A61B 18/24 with a catheter A61B18/26, A61B18/28 take precedence
• CPC Class Codes: A61B 2017/00278 Transorgan operations, e.g. transgastric
• CPC Class Codes: A61B 2017/00557 inflatable A61B2017/22051 takes precedence
• CPC Class Codes: A61B 2017/0237 for heart surgery endoscopic heart surgery A61B2017/00243; endoscopic access devices, i.e. trocars, A61B17/34
• CPC Class Codes: A61B 2017/3425 for internal organs, e.g. heart ports
• CPC Class Codes: A61B 2017/3486 Balloon
• CPC Class Codes: A61B 2017/3492 against the outside of the body
• CPC Class Codes: A61B 2018/00351 Heart
• CPC Class Codes: A61B 2018/00357 Endocardium
• CPC Class Codes: A61F 2/2427 Devices for manipulating or deploying heart valves during implantation
• CPC Class Codes: A61F 2/2442 Annuloplasty rings or inserts for correcting the valve shape; Implants for improving the function of a native heart valve
• CPC Class Codes: A61F 2/2454 Means for preventing inversion of the valve leaflets, e.g. chordae tendineae prostheses
• CPC Class Codes: A61F 2/2457 : Chordae tendineae prostheses
• CPC Class Codes: A61F 2/2466 : Delivery devices therefor
• CPC Class Codes: A61F 2220/0008 : Fixation appliances for connecting prostheses to the body
• CPC Class Codes: A61F 2220/0016 : with sharp anchoring protrusions, e.g. barbs, pins, spikes
• CPC Class Codes: A61F 2250/0097 : Visible markings, e.g. indicia
• CPC Class Codes: A61M 2039/0646 : Duckbill-valve
• CPC Class Codes: A61M 39/06 : Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof
• CPC Class Codes: A61N 1/059 : Anchoring means

Abstract

Instrument port for allowing access to the interior of the heart or other organ while minimizing blood loss.

Claims

1. A transcardiac instrument port for placement in a heart wall to allow passage into a chamber of the heart, comprising:

a cylindrical body portion defining a lumen and having an outer surface, a heart wall portion, and distal and proximal ends;

a valve associated with the lumen that allows passage of an instrument through the lumen but minimizes flow of blood out of the heart through the lumen; and

a sealing device on the body portion outer surface that minimizes blood flow from out of the heart around the outside of the port;

wherein the sealing device includes at least one inflatable distal balloon, arranged for placement on the interior side of the heart wall;

wherein the balloon is pancake shaped.

2. The port of claim 1, wherein the sealing device includes a second inflatable proximal balloon, arranged for placement on the outer side of the heart wall.

3. The port of claim 2, wherein the distal and proximal balloons are separate balloons.

4. The port of claim 2, wherein the distal and proximal balloons are portions of a single balloon, separated by a spacer.

5. The port of claim 4, wherein the spacer has a length that approximates the width of the heart wall where the instrument port is to be inserted.

6. The port of claim 2, further having a manifold that holds the cylindrical body portion and inflation tubes leading to the distal and proximal balloons, wherein the manifold includes markings that indicate which inflation tube inflates which balloon.

7. The port of claim 1, wherein the cylindrical body portion comprises two cylindrical pieces in a slidable coaxial relationship.

8. The port of claim 1, comprising a stop on the proximal side of the heart wall portion that stops movement of the port through the heart wall into the heart chamber.