Medical device suitable for use in treatment of a valve

• US 20090076600A1
• Filed: 04/14/2008
• Published: 03/19/2009
• Est. Priority Date: 12/15/2004
• Status: Abandoned Application

• Current Assignee: Mednua Limited
• Original Assignee: Mednua Limited
• Inventors: QUINN, Martin
• Application Number:
  US12/102,560
• Publication Number:
  US 20090076600A1
• Time in Patent Office: Days
• US Class Current: 623/2.340
• CPC Class Codes: A61B 17/00234 for minimally invasive surgery A61B17/0218, A61B17/0469, A61B17/12013, A61B17/1285, A61B17/29, A61B17/320016 take precedence
• CPC Class Codes: A61B 17/0469 Suturing instruments for use in minimally invasive surgery, e.g. endoscopic surgery
• CPC Class Codes: A61B 2017/00243 cardiac
• CPC Class Codes: A61F 2/2451 Inserts in the coronary sinus for correcting the valve shape
• CPC Class Codes: A61F 2/2454 Means for preventing inversion of the valve leaflets, e.g. chordae tendineae prostheses
• CPC Class Codes: A61F 2/246 Devices for obstructing a leak through a native valve in a closed condition

Abstract

A medical device (1210) comprises a generally cylindrical treatment element (1220) for location between a pair of valve leaflets (1212) situated between an atrium (1214) and a ventricle (1216) of a heart. The treatment element (1220) supports the valve leaflets (1212) at the region of co-aptation of the valve leaflets (1212) and occludes the valve opening to resist fluid flow in the retrograde direction through the valve opening. The device (1210) comprises a support (1222) to support the treatment element (1210) at the region of co-aptation of the valve leaflets (1212). The support has an anchor (1224) and a tether (1226), the tether (1226) being provided at the end of a guide wire (1228) which is initially utilised in the percutaneous insertion of the treatment element (1220). The anchor (1224) is secured, in use, to a septal wall (1230), while the guide wire (1228) exits the atrium (1214) through a vein adjacent a rear wall (1224) thereof. The treatment element (1220) includes a remotely actuatable clamp therein, in order to allow the treatment element (1220) to be secured to the guide wire (1228) or the tether (1226).

Claims

1. A medical device suitable for use in treatment of a valve, the device comprising a treatment element configured to be located at the region at co-aptation of leaflets of a valve to resist fluid flow in a first direction through an opening of the valve.

2-268. -268. (canceled)

269-291. -291. (canceled)

292. A medical device suitable for use in treatment of a valve, the device comprising a treatment element and a treatment wire, the valve being movable between a closed configuration and an open configuration, the treatment element configured to be located at the region of co-aptation of leaflets of a valve to resist fluid flow in a retrograde direction through an opening of the valve, the treatment element having an expanded treatment configuration and a collapsed delivery configuration;

wherein the treatment wire comprises an inflation lumen and the treatment element is expanded by inflation and the wherein said lumen is occludable after inflation of the treatment element.

293. A device as claimed in claim 292 wherein the inflation lumen is occludable with a soft polymeric interface.

294. A device as claimed in claim 293 wherein said polymeric interface comprises a plug or a valve.

295. A device as claimed in claim 292 wherein the treatment wire comprises a tubing.

296. A device as claimed in claim 292 wherein the treatment wire comprises a multi-lumen tubing, and wherein at least one lumen is an inflation lumen.

297. A medical device suitable for use in the treatment of a valve, the device comprising a plug, a support wire, and an anchor, the plug comprises an expansion on the support wire, and the said expansion further comprises a wall, the plug is configured for location between a pair of valve leaflets situated between an atrium and a ventricle of a heart, the support wire having an anchor wherein the support wire is fixed in the ventricular muscle using the anchor, the valve leaflets co-apt against the expansion, and the width or radial dimension of the expansion can be varied by inflating or deflating the wall of the expansion.

298. A device as claimed in claim 297 wherein the support wire comprises a lead, a tether, a wire, a carrier element, a guidewire lead, a treatment wire or a guidewire.

299. A device as claimed in claim 297 wherein the support wire comprises a tube, a wire or a combination of a tube and a wire.

300. A device as claimed in claim 297 wherein the support wire and the expansion are integrally formed.

301. A device as claimed in claim 297 wherein the plug is at least partially of a shape-memory material to assist in actuating the plug.

302. A device as claimed in claim 301 wherein the shape memory material comprises Nitinol.

303. A device as claimed in claim 297 wherein the wall of the expansion comprises an elastic wall.

304. A device as claimed in claim 297 wherein the plug is at least partially comprises of a resiliently deformable material.

305. A method of treating a valve using a medical device, the device comprising a treatment element, and a treatment wire, the treatment element having an expanded treatment configuration and a collapsed delivery configuration and the treatment wire having an inflation lumen, the method comprising the steps of:

inserting the collapsed treatment element into a procedural cathether;

advancing the treatment wire through the procedural catheter;

passing the distal end of the treatment wire across the valve;

inserting the treatment element into a position adjacent an interface of the valve leaflets;

inflating the treatment element; and

occluding the inflation lumen after inflation.

306. A method of treating a valve using a medical device, the device comprising a treatment element, and a treatment wire, the treatment element having an expanded treatment configuration and a collapsed delivery configuration and the treatment wire having an inflation lumen, the method comprising the steps of:

inserting the collapsed treatment element into a procedural catheter;

advancing the treatment wire through the procedural catheter;

passing the distal end of the treatment wire across the valve;

inserting the treatment element into a position adjacent an interface of the valve leaflets;

expanding the treatment element; and

varying the width or radial dimension of the treatment element by inflating or deflating.