Percutaneous electrical therapy system providing electrode axial support

• US 6,560,491 B1
• Filed: 12/01/1999
• Issued: 05/06/2003
• Est. Priority Date: 12/01/1999
• Status: Expired due to Fees

• Current Assignee: Meagan Medical, Inc.
• Original Assignee: Vertis Neuroscience, Inc. (Northstar Neuroscience, Inc.)
• Inventors: Bishay, Jon M., Leonard, Paul
• Primary Examiner(s): Jastrzab, Jeffrey R.
• Assistant Examiner(s): Oropeza, Frances P.
• Application Number:
  US09/452,663
• Time in Patent Office: 1,252 Days
• Field of Search: 128/907, 607/46, 607/116, 607/149, 607/150, 604/174, 604/175
• US Class Current: 607/116
• CPC Class Codes: A61N 1/0551 Spinal or peripheral nerve electrodes
• CPC Class Codes: A61N 1/36017 with leads or electrodes penetrating the skin
• CPC Class Codes: A61N 1/36021 for treatment of pain

Abstract

The invention is a percutaneous electrical therapy system providing electrode axial stability during electrode insertion. In a preferred embodiment, the system includes a control unit; an electrode electrically connectable to the control unit to deliver electrical therapy to a patient, the electrode having a sharp point at a distal end adapted to be inserted into a patient'"'"'s tissue; and an electrode insertion axial supporter adapted to provide axial support to the electrode during insertion of the electrode into the patient'"'"'s tissue. The invention also includes an electrode and an electrode insertion axial supporter apart from the control unit.

Claims

1. A percutaneous electrical therapy system comprising:

a housing having an aperture;

an electrode movably coupled to the housing and movable relative to the housing between a stowed position and a deployed position, the electrode being electrically connectable to a control unit to deliver electrical therapy to a patient, the electrode comprising a sharp point at a distal end configured to be inserted through the aperture into a patient'"'"'s tissue;

an electrode insertion axial supporter configured to provide axial support to the electrode during insertion of the electrode into the patient'"'"'s tissue; and

an electrode insertion pain reducer configured to reduce pain experienced by the patient during insertion of the sharp point of the electrode into the patient'"'"'s tissue, the electrode insertion pain reducer including an annular protrusion extending axially outwardly at least partially around and proximate to the aperture to receive the electrode and stretch the patient'"'"'s skin when the housing is placed against the skin.

2. The system of claim 1 wherein at least one of the housing and the electrode insertion axial supporter comprise an electrode inserter.

3. The system of claim 2 wherein the electrode inserter comprises a guide element at one end, the guide element being configured to provide axial support to the electrode during insertion of the electrode into the patient'"'"'s tissue.

4. The system of claim 3 wherein the guide element includes the aperture.

5. The system of claim 3 wherein the guide element comprises a channel.

6. The system of claim 2 further comprising a mechanical connection between the electrode inserter and a proximal end of the electrode.

7. The system of claim 6 wherein the mechanical connection is configured to remain connected after the sharp point of the electrode has been inserted into the patient'"'"'s tissue.

8. The system of claim 6 wherein the mechanical connection is configured to release the electrode after insertion of the sharp point of the electrode into the patient'"'"'s tissue.

9. The system of claim 6 wherein the electrode inserter has a guide element at one end, the guide element being configured to provide axial support to the electrode during insertion of the electrode into the patient'"'"'s tissue, and wherein the mechanical connection comprises an actuator configured to be movable with respect to the guide element.

10. The system of claim 1 further comprising an electrode angle of entry controller configured to control the electrode'"'"'s entry angle during insertion of the sharp point of the electrode into the patient'"'"'s tissue.

12. The system of claim 1 wherein the electrode is movable with respect to at least part of the axial supporter.

14. The system of claim 1, further comprising an attachment device configured to releasably attach the housing to the patient'"'"'s skin.

15. The system of claim 1, further comprising an attachment device configured to releasably attach the housing to the patient'"'"'s skin, wherein the attachment device includes an adhesive.

16. The system of claim 1, further comprising the control unit.

17. The system of claim 1, further comprising an electrode actuator carrying the electrode, wherein the electrode actuator is movable relative to the housing to move the electrode between the stowed position and the deployed position.

18. The system of claim 1, further comprising:

an electrode actuator carrying the electrode, wherein the electrode actuator is movable relative to the housing to move the electrode between the stowed position and the deployed position; and

an actuator tool configured to removably couple with the electrode actuator.

11. A percutaneous electrical therapy system comprising:

a control unit;

a housing having an aperture;

an electrode movably coupled to the housing and movable relative to the housing between a stowed position and a deployed position, the electrode being electrically connectable to the control unit to deliver electrical therapy to a patient, the electrode comprising a sharp point at a distal end configured to be inserted through the aperture into a patient'"'"'s tissue;

an electrode insertion axial supporter configured to provide axial support to the electrode during insertion of the electrode into the patient'"'"'s tissue; and

an electrode insertion pain reducer configured to reduce pain experienced by the patient during insertion of the sharp point of the electrode into the patient'"'"'s tissue, the electrode insertion pain reducer including an annular protrusion extending axially outwardly at least partially around and proximate to the aperture to receive the electrode and stretch the patient'"'"'s skin when the housing is placed against the skin.

19. The system of claim 11, further comprising an attachment device configured to releasably attach the housing to the patient'"'"'s skin.

20. The system of claim 11, further comprising an attachment device configured to releasably attach the housing to the patient'"'"'s skin, wherein the attachment device includes an adhesive.

21. The system of claim 11, further comprising an electrode actuator carrying the electrode, wherein the electrode actuator is movable relative to the housing to move the electrode between a stowed position and a deployed position.

22. The system of claim 11, further comprising:

an electrode actuator carrying the electrode, wherein the electrode actuator is movable relative to the housing to move the electrode between a stowed position and a deployed position; and

an actuator tool configured to removably couple with the electrode actuator.

13. A percutaneous electrical therapy system comprising:

an electrode electrically connectable to a control unit to deliver electrical therapy to a patient, the electrode comprising a sharp point at a distal end configured to be inserted into a patient'"'"'s tissue;

an electrode insertion axial supporter configured to provide axial support to the electrode during insertion of the electrode into the patient'"'"'s tissue, the electrode insertion axial supporter including a channel axially aligned with the electrode;

a housing carrying the electrode insertion axial supporter with the electrode axially movable relative to the housing through the channel during insertion; and

an electrode insertion pain reducer configured to reduce pain experienced by the patient during insertion of the sharp point of the electrode into the patient'"'"'s tissue, the electrode insertion pain reducer including an annular protrusion extending axially outwardly at least partially around and proximate to the channel to receive the electrode and stretch the patient'"'"'s skin when the housing is placed against the skin.

23. The system of claim 13, further comprising an attachment device configured to releasably attach the housing to the patient'"'"'s skin.

24. The system of claim 13, further comprising an attachment device configured to releasably attach the housing to the patient'"'"'s skin, wherein the attachment device includes an adhesive.

25. The system of claim 13, further comprising the control unit.

26. The system of claim 13, further comprising an electrode actuator carrying the electrode, wherein the electrode actuator is movable relative to the housing to move the electrode between a stowed position and a deployed position.

27. The system of claim 13, further comprising:

an electrode actuator carrying the electrode, wherein the electrode actuator is movable relative to the housing to move the electrode between a stowed position and a deployed position; and

an actuator tool configured to removably couple with the electrode actuator.