A DEVICE FOR DELIVERING MEDICAL TREATMENT

• US 20090112184A1
• Filed: 03/20/2007
• Published: 04/30/2009
• Est. Priority Date: 03/20/2006
• Status: Active Grant

• Current Assignee: Medical Device Works NV SA
• Original Assignee: Medical Device Works NV SA
• Inventors: Marcoux, Eric, Omari, Malika, Fierens, Joost J.
• Granted Patent: US 8,652,099 B2
• Time in Patent Office: Days
• US Class Current: 604/509
• CPC Class Codes: A61B 17/12 for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord specially adapted for vas deferens or fallopian tubes A61F6/20; materials for ligaturing blood vessels A61L17/00
• CPC Class Codes: A61B 17/12036 partial occlusion
• CPC Class Codes: A61B 17/1204 temporary occlusion
• CPC Class Codes: A61B 17/12045 double occlusion, e.g. during anastomosis
• CPC Class Codes: A61B 17/12109 in a blood vessel
• CPC Class Codes: A61B 17/12113 within an aneurysm
• CPC Class Codes: A61B 17/12136 Balloons
• CPC Class Codes: A61B 17/22 Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for dilators A61M29/00
• CPC Class Codes: A61B 2017/1205 Introduction devices
• CPC Class Codes: A61M 1/3613 Reperfusion, e.g. of the coronary vessels, e.g. retroperfusion
• CPC Class Codes: A61M 1/3615 Cleaning blood contaminated by local chemotherapy of a body part temporarily isolated from the blood circuit
• CPC Class Codes: A61M 2025/0024 Expandable catheters or sheaths
• CPC Class Codes: A61M 2025/105 having a balloon suitable for drug delivery, e.g. by using holes for delivery, drug coating or membranes
• CPC Class Codes: A61M 2025/1052 for temporarily occluding a vessel for isolating a sector
• CPC Class Codes: A61M 2025/1095 with perfusion means for enabling blood circulation while the balloon is in an inflated state or in a deflated state, e.g. permanent by-pass within catheter shaft
• CPC Class Codes: A61M 25/0068 Static characteristics of the catheter tip, e.g. shape, atraumatic tip, curved tip or tip structure
• CPC Class Codes: A61M 25/0084 being one or more injection needles
• CPC Class Codes: A61M 25/04 in the body, e.g. expansible A61M25/10, A61M16/0488 take precedence

Abstract

A medical device for the delivery of treatment fluid to body vessels is described. The device has a distal (21) and a proximal (20) end with a self-expanding, hollow tubular member (9) and a delivery catheter (10) suitable for deploying a self-expanding, tubular member (9). The tubular member (9) is configured to expand radially to form a central part (11) flanked by two annular ridges, which creates, in situ, an annular lumen that can apply treatment fluid locally to a vessel and a passageway that can maintain the flow of blood through the vessel. The device is particularly suited for minimally invasive and repeatable organ perfusion. A method for organ perfusion is also disclosed.

Claims

1. A retrievable medical device for the delivery of medical treatment fluid to body vessels, having a distal and a proximal end, comprising a self-expanding, hollow tubular member and a delivery catheter suitable for deploying a self-expanding tubular member, wherein:

the tubular member is configured to expand radially to form a central part flanked by two annular ridges—

a distal annular ridge and a proximal annular ridge,

the tubular member comprises a liquid-impermeable area, defined at least by the region flanked by the annular ridges,

the tubular member comprises two liquid-permeable regions, one distal to the distal annular ridge and one proximal to the proximal annular ridge, so forming a passageway between the distal end and the proximal end of the tubular member for the flow of fluid,

the proximal end of the tubular member is attached to the distal end of the delivery catheter,

the liquid-impermeable area is disposed with one or more fluid ports for the passage of treatment fluid.

2. Medical device according to claim 1, wherein the tubular member comprises:

a liquid-permeable carrier configured to adopt an essentially cylindrical state when compressed, and to self-expand radially to form a central part flanked by two annular ridges,

a liner attached to the wall of the tubular member, which provides the liquid impermeable area.

3. Medical device according to claim 1, wherein the carrier is made of a braded wire mesh.

4. Medical device according to claim 2, wherein the carrier is made from a surgical wire that is:

an alloy comprising Cobalt, Chromium, Nickel, Molybdenum and Iron, or nitinol, or a surgical wire in accordance to the standard ASTM F 1058.

5. Medical device according to claim 2, wherein the carrier is laser cut.

6. Medical device according to claim 2, wherein the carrier is made from any of polycarbonate polyurethane formulation, polytetrafluoroethylene, polyurethane, silicone or polyethylene terephthalate polymer.

7. Medical device according to claim 1, wherein the catheter comprises:

(a) an inner tube;

(b) an outer tube, and

(c) a pusher means for deployment of the tubular member,

the outer tube surrounding at least a portion of the length of the inner tube,

the pusher means being;

a pusher rod disposed between the inner tube and the outer tube, or

formed from the wall of the inner tube,

the pusher means being adapted for axial movement relative to the outer tube,

the proximal end of the tubular member being attached to the distal end of the pusher means, and disposed within the outer tube in the compressed state.

8. Medical device according to claim 7, wherein the inner tube is configured for the passage of treatment fluid.

9. Medical device according to claim 7, wherein the inner tube is further configured to receive a guidewire.

10. Medical device according to claim 7, wherein the inner tube of the catheter is in fluid connection with the one or more ports.

11. Medical device according to claim 7, wherein the inner tube of the catheter is in fluid connection with the one or more ports, using a bridging tubing.

12. Medical device according to claim 1, wherein the tubular member is configured to create a fluid impermeable annular cavity between said device and the inner wall of the vessel.

13. Medical device according to claim 1, wherein the proximal end of the tubular member is non-releasably attached to the distal end of the delivery catheter.

14. A kit comprising:

a device as defined in claim 1, and one of more of the following;

an occlusion device for the hepatic artery, optionally with perfusion capacity,

an occlusion device, with options for perfusion and shunting,

one or more perfusion lines,

one or more perfusion lines in fluid connection with a means for drawing medicament or perfusion fluid into a perfusion circuit, and

one or more perfusion lines in fluid connection with at least one connector for drawing medicament or perfusion fluid into a perfusion circuit, said connector being specific to a particular medicine container.

15. A method for minimal invasive and repeatable organ perfusion of a living being comprising positioning the device of claim 1 into the inferior vena cava, thereby:

a. blocking the flow path of blood in the inferior vena cava;

b. providing a flow path for the blood through the passageway of the device;

c. creating an isolated cavity between the medical device and the wall of the vena cava, which is in contact with the liver by the hepatic veins; and

d. delivering the perfusion fluid to or from this cavity by means of the delivery catheter.

16. The method according to claim 15, further comprising the step of withdrawing the device after perfusion.