Manually extendable electrocautery surgical apparatus

• US 5,626,577 A
• Filed: 12/29/1995
• Issued: 05/06/1997
• Est. Priority Date: 02/28/1994
• Status: Expired due to Term

• Current Assignee: George A. Harris
• Original Assignee: George A. Harris
• Inventors: Harris, George A.
• Primary Examiner(s): Sykes, Angela D.
• Assistant Examiner(s): PEFFLEY, MICHAEL F
• Application Number:
  US08/578,205
• Time in Patent Office: 494 Days
• Field of Search: 606/37-42, 606/45-50
• US Class Current: 606/45
• CPC Class Codes: A61B 18/1402 Probes for open surgery

Abstract

The manually extendable electrocautery surgical apparatus slidably receives an electrode housing apparatus within an elongated aperture within a main housing. The electrode housing is slidably received upon a conductive post which provides an electrical connection to the electrode housing from a remote electrical supply source. An insulating outer layer surrounds the electrode housing apparatus, and the insulating outer layer is slidably received within the cylindrical cavity in the main housing. The electrode is inserted into the distal end of the electrode housing, and the electrode housing is adjustably positioned in relation to the main housing, to obtain the desired length during surgery. The main housing includes at least one actuation member for selectively controlling the flow of current to the electrode housing. The electrical current may further be adjusted to perform cutting or coagulating routines.

Claims

1. A manually extendable electrocautery surgical apparatus, comprising:

a) an elongated, non-conductive main housing having a cord end and a distal end, with an elongated aperture extending into the main housing from the distal end;

b) an elongated electrode housing having an internal aperture extending therethrough, with an electrically conductive material surrounding the internal aperture, and an insulating sleeve surrounding the electrically conductive material, the electrically conductive material surrounding the internal aperture receiving a portion of an electrode therein, and the insulating sleeve sized to be slidably received at least partially within the elongated aperture extending into the main housing from the distal end;

c) an elongated, electrically conductive post extending within the elongated aperture in the main housing, the post sized to provide electrical contact with the electrically conductive material within the internal aperture of the slidably received, elongated electrode housing; and

d) an actuating means for selectively actuating an electrical current passing through an electrical cord from remote electrical supply means, through the electrically conductive post to the electrode;

wherein the elongated electrode housing is slidably positioned in relation to the main housing, to adjustably position the electrode to a desired depth suitable for selectively cauterizing and cutting a patient'"'"'s tissue during an operation.

2. The manually extendable electrocautery surgical apparatus of claim 1, wherein the actuating means is a first momentary contact switch for passing a cauterizing current to the electrode, and a second momentary contact switch for passing a cutting current to the electrode, and wherein the first and second momentary contact switches are positioned upon the main housing for easy access by the user holding the surgical apparatus.

3. The manually extendable electrocautery surgical apparatus of claim 1, wherein a tightening means is provided upon the distal end of the main housing, to selectively loosen and tighten a portion of the main housing against the electrode housing, to enable the user to selectively extend and retract the electrode housing in relation to the main housing, while restricting movement of the electrode housing in relation to the main housing during use.

4. The manually extendable electrocautery surgical apparatus of claim 3, wherein the tightening means is a cap which is threadably received upon the distal end of the main housing, which when tightened, compresses the distal end of the main housing against the insulating sleeve of the electrode housing, to releasably secure the electrode housing in relation to the main housing.

5. The manually extendable electrocautery surgical apparatus of claim 3, wherein the tightening means is a cap which is threadably received upon the distal end of the main housing, which when tightened, compresses the distal end of the main housing against the insulating sleeve of the electrode housing, to releasably secure the electrode housing in relation to the main housing.

6. The manually extendable electrocautery surgical apparatus of claim 1, wherein the elongated aperture in the main housing is of a circular cross-sectional configuration.

7. The manually extendable electrocautery surgical apparatus of claim 1, wherein the elongated aperture in the main housing is of an oval cross-sectional configuration, to resist rotation of the electrode housing during use.

8. The manually extendable electrocautery surgical apparatus of claim 1, wherein the elongated aperture in the main housing is of a multi-sided cross-sectional configuration, to resist rotation of the electrode housing during use.

9. The manually extendable electrocautery surgical apparatus of claim 1, wherein the electrode housing and the electrode are disposable.

10. A manually extendable electrocautery surgical apparatus, comprising:

a) an elongated, non-conductive main housing having a cord end and a distal end, with an elongated aperture extending into the main housing from the distal end;

b) an elongated electrode housing having an internal aperture extending therethrough, with an electrically conductive material surrounding the internal aperture, and an insulating sleeve surrounding the electrically conductive material, the electrically conductive material surrounding the internal aperture receiving a portion of an electrode therein;

c) an electrically conductive post extending within the elongated aperture in the main housing, the post sized to be slidably received and provide electrical contact with the electrically conductive material within the internal aperture of the elongated electrode housing; and

d) a first momentary contact switch for passing a cauterizing current to the electrode, and a second momentary contact switch for passing a cutting current to the electrode, the first and second momentary contact switches are positioned upon the main housing for easy access for the user holding the surgical apparatus; and

wherein the elongated electrode housing is slidably positioned in relation to main housing, to adjustably position the electrode to a desired depth suitable for selectively cauterizing and cutting a patient'"'"'s tissue during an operation.

11. The manually extendable electrocautery surgical apparatus of claim 10, wherein a tightening means is provided upon the distal end of the main housing, to selectively loosen and tighten a portion of the main housing against the electrode housing, to enable the user to selectively extend and retract the electrode housing in relation to the main housing, while restricting movement of the electrode housing in relation to the main housing during use.

12. The manually extendable electrocautery surgical apparatus of claim 10, wherein the elongated aperture in the main housing is of a circular cross-sectional configuration.

13. The manually extendable electrocautery surgical apparatus of claim 10, wherein the elongated aperture in the main housing is of an oval cross-sectional configuration, to resist rotation of the electrode housing during use.

14. The manually extendable electrocautery surgical apparatus of claim 10, wherein the elongated aperture in the main housing is of a multi-sided cross-sectional configuration, to resist rotation of the electrode housing during use.

15. The manually extendable electrocautery surgical apparatus of claim 10, wherein the tightening means is a cap which is threadably received upon the distal end of the main housing, which when tightened, compresses the distal end of the main housing against the insulating sleeve of the electrode housing, to releasably secure the electrode housing in relation to the main housing.

16. A manually extendable electrocautery surgical apparatus, comprising:

a) an elongated, non-conductive main housing having a cord end and a distal end, with an elongated aperture extending into the main housing from the distal end;

b) an elongated electrode housing having an internal aperture extending therethrough, with an electrically conductive material surrounding the internal aperture, and an insulating sleeve surrounding the electrically conductive material, the electrically conductive material surrounding the internal aperture receiving a portion of an electrode therein;

c) an electrically conductive post extending within the elongated aperture in the main housing, the post sized to be slidably received and provide electrical contact with the electrically conductive material within the internal aperture of the elongated electrode housing; and

d) an actuating means for selectively actuating an electrical current passing through an electrical cord from a remote electrical supply means to the electrically conductive post;

e) a tightening means is provided upon the distal end of the main housing, to selectively loosen and tighten a portion of the main housing against the electrode housing, to enable the user to selectively extend and retract the electrode housing in relation to the main housing, while restricting movement of the electrode housing in relation to the main housing during use; and

wherein the elongated electrode housing is slidably positioned in relation to main housing, to adjustably position the electrode to a desired depth suitable for selectively cauterizing and cutting a patient'"'"'s tissue during an operation.

17. The manually extendable electrocautery surgical apparatus of claim 16, wherein the elongated aperture in the main housing is of a circular cross-sectional configuration.

18. The manually extendable electrocautery surgical apparatus of claim 16, wherein the elongated aperture in the main housing is of an oval cross-sectional configuration, to resist rotation of the electrode housing during use.

19. The manually extendable electrocautery surgical apparatus of claim 16 wherein the elongated aperture in the main housing is of a multi-sided cross-sectional configuration, to resist rotation of the electrode housing during use.

20. The manually extendable electrocautery surgical apparatus of claim 16, wherein the electrode housing and the electrode are disposable.