Medical stimulation

• US 6,041,258 A
• Filed: 07/27/1998
• Issued: 03/21/2000
• Est. Priority Date: 05/28/1997
• Status: Expired due to Term

• Current Assignee: Transneuronix Inc. (Medtronic Plc)
• Original Assignee: Transneuronix Inc. (Medtronic Plc)
• Inventors: Jenkins, David, Cigaina, Valerio
• Primary Examiner(s): Kamm, William E.
• Assistant Examiner(s): LAYNO, CARL HERNANDZ
• Application Number:
  US09/122,832
• Time in Patent Office: 603 Days
• Field of Search: 607/40, 607/41, 607/133
• US Class Current: 607/40
• CPC Class Codes: A61N 1/05 for implantation or insertion into the body, e.g. heart electrode A61N1/06 takes precedence

Abstract

An improved handle for a medical device used in laparoscopic surgery is provided. This handle is especially adapted for use with an implant device specifically for electrostimulation and/or electrical monitoring of endo-abdominal tissue or viscera is provided. The implant device has an elongated body equipped with devices to secure it to the tissue to be treated and two or more electric poles that are electrically connected to an electric connection terminal for connection to a power source, means to penetrate the tissue to be treated, and quick-release connecting devices to separate the penetration device from the elongated body. The handle, which is an elongated body, is attached to the proximal end of the implant device or other medical device and has a grasping means at its opposite end for manipulation with laparoscopic forceps.

Claims

1. An implant device adapted for electrostimulation or electrical monitoring of tissue to be treated within the endo-abdominal cavity, said implant device comprising (1) an elongated body having a distal end and a proximal end, (2) a penetration mechanism at the distal end of the elongated body to penetrate the tissue to be treated, (3) a quick release connecting mechanism adjacent to the penetration mechanism, (4) a first and second sets of flexible tines adjacent and proximal to the quick release connecting mechanism to secure the implant device to the tissue to be treated wherein the first and second sets of tines are spaced apart along the elongated body a distance sufficient to span the tissue such that the first set of tines are located between the quick release connecting mechanism and the second set of tines, (5) at least two electric poles located between the two sets of flexible tines, (6) an electrical connection terminal at the proximal end of the elongated body for connection to a power source, and (7) a relatively hard, elongated handle having a proximal end and a distal end which can be attached to the proximal end of the elongated body;

wherein the two or more electric poles are electrically connected to electrical connection terminal;

wherein the quick release connecting mechanism is effective to separate the penetration device from the elongated body once the implant device is properly positioned in the endo-abdominal cavity;

wherein the distal end of the handle is adapted for attachment to the proximal end of the elongated body and the proximal end of the handle has grasping means whereby the handle can be grasped and manipulated using forceps; and

wherein the handle can be easily separated from the proximal end of the elongated body at a desired time.

2. A device according to claim 1 wherein the handle also protects the electrical connection terminal from bodily fluids.

3. A device according to claim 1, wherein the penetration mechanism includes a stylet with one smooth curved noncutting section with a cutting point and a cavity on the opposite end for attachment to the distal end of the elongated body.

4. A device according to claim 3, wherein the quick-release connecting mechanism includes a connecting element, one end of which is connected to distal end of the elongated body and the other end of which is lodged in the cavity on the stylet.

5. A device according to claim 1, wherein first set of tines are angled towards the proximal end of the elongated body such that they can pass easily through a tunnel in the tissue to be stimulated formed by the penetration mechanism and the second set of tines are angled towards the distal end of the elongated body such they resist passage through the tunnel.

6. A device according to claim 4, wherein first set of tines are angled towards the proximal end of the elongated body such that they can pass easily through a tunnel in the tissue to be stimulated formed by the penetration mechanism and the second set of tines are angled towards the distal end of the elongated body such they resist passage through the tunnel.

7. A device according to claim 1, wherein non-electrical conducting portions of the elongated body, except the penetration mechanism, which are inserted into the endo-abdominal cavity and are in direct contact with tissue therein are formed from medical-grade silicone.

8. A device according to claim 4, wherein non-electrical conducting portions of the elongated body, except the penetration mechanism, which are inserted into the endo-abdominal cavity and are in direct contact with tissue therein and the handle are formed from medical-grade silicone.

9. A device according to claim 3, wherein the stylet has a flattened portion to allow the stylet to be easily grasped and maneuvered with surgical instruments.

10. A device according to claim 4, wherein the stylet has a flattened portion to allow the stylet to be easily grasped and maneuvered with surgical instruments.

11. A device according to claim 8, wherein the stylet has a flattened portion to allow the stylet to be easily grasped and maneuvered with surgical instruments.

12. A device according to claim 1, wherein the handle has bevels at both its distal and proximal ends to allow the handle to more easily pass through a trocar.

13. A device according to claim 11, wherein the handle has bevels at both its distal and proximal ends to allow the handle to more easily pass through a trocar.

14. An implant device adapted for electrostimulation and electrical monitoring of tissue to be treated within a cavity of the human body, said implant device comprising (1) an elongated body having a distal end and a proximal end, (2) a penetration mechanism at the distal end of the elongated body to penetrate the tissue to be treated, (3) a quick release connecting mechanism adjacent to the penetration mechanism, (4) a first and second sets of flexible tines adjacent and proximal to the quick release connecting mechanism to secure the implant device to the tissue to be treated wherein the first and second sets of tines are spaced apart along the elongated body a distance sufficient to span the tissue such that the first set of tines are located between the quick release connecting mechanism and the second set of tines, (5) at least two electric poles located between the two sets of flexible tines, (6) an electrical connection terminal at the proximal end of the elongated body for connection to a power source, and (7) a relatively hard, elongated handle having a proximal end and a distal end which can be attached to the proximal end of the elongated body;

wherein the two or more electric poles are electrically connected to electrical connection terminal;

wherein the quick release connecting mechanism is effective to separate the penetration device from the elongated body once the implant device is properly positioned in the body cavity;

wherein the distal end of the handle is adapted for attachment to the proximal end of the elongated body and the proximal end of the handle has grasping means whereby the handle can be grasped and manipulated using forceps; and

wherein the handle can be easily separated from the proximal end of the elongated body at a desired time.