Electrosurgical pencil having a single button variable control

• US 8,128,622 B2
• Filed: 07/09/2007
• Issued: 03/06/2012
• Est. Priority Date: 11/05/2002
• Status: Active Grant

• Current Assignee: Covidien AG (Medtronic Plc)
• Original Assignee: Covidien AG (Medtronic Plc)
• Inventors: Schmaltz, Dale Francis, Reschke, Arlan James, Podhajsky, Ronald J
• Primary Examiner(s): GIBSON, ROY DEAN
• Application Number:
  US11/825,821
• Publication Number:
  US 20070260239A1
• Time in Patent Office: 1,702 Days
• Field of Search: 606/41, 606/42, 606/45, 606/46, 606/48, 606/49, 606/50
• US Class Current: 606/47
• CPC Class Codes: A61B 18/1402 Probes for open surgery
• CPC Class Codes: A61B 2018/00589 Coagulation
• CPC Class Codes: A61B 2018/00601 Cutting

Abstract

The present disclosure is directed to electrosurgical pencils having variable controls. In one aspect, the electrosurgical pencil, includes an elongated housing, an electrocautery blade supported within the housing and extending distally from the housing, the electrocautery blade being connected to a source of electrosurgical energy, an activation button supported on the housing, the activation button being movable from a first position to at least a subsequent position, and a transducer electrically connected between the activation button and the source of electrosurgical energy. The transducer is configured to transmit an electrical output signal to the electrosurgical energy source correlating to the movement of the activation button. The source of electrosurgical energy correspondingly supplies an amount of electrosurgical energy to the electrocautery blade dependant upon the electrical output signal.

Claims

1. An electrosurgical pencil, comprising:

an elongated housing;

an electrocautery blade supported within the housing and extending distally therefrom, the electrocautery blade being connected to a source of electrosurgical energy;

an activation button supported on the housing;

a transducer electrically connected between the activation button and the source of electrosurgical energy, the transducer being configured to transmit an electrical output signal to the electrosurgical energy source correlating to the movement of the activation button, the source of electrosurgical energy correspondingly supplying an amount of electrosurgical energy to the electrocautery blade dependant upon the electrical output signal; and

a control pendent operatively coupled to the housing and electrically connected to the source of electrosurgical energy, the control pendent including at least one control knob operatively supported thereon, wherein the at least one control knob is configured and adapted to enable selection of a particular emission signal from the source of electrosurgical energy.

2. The electrosurgical instrument according to claim 1, wherein the at least one control knob is electrically connected to the activation button.

3. The electrosurgical instrument according to claim 2, wherein the at least one control knob is electrically connected to the source of electrosurgical energy.

4. The electrosurgical instrument according to claim 2, wherein the control pendent is configured and adapted to be removably attached to at least one of a user'"'"'s wrist, a user'"'"'s garment, and an operating table.

5. The electrosurgical instrument according to claim 4, wherein the control pendent includes at least one knob for selecting a function of the electrosurgical instrument and at least one other knob for selecting a power output of the source of electrosurgical energy.

6. An electrosurgical system, comprising:

a source of electrosurgical energy; and

an electrosurgical pencil connectable to the source of electrosurgical energy, the electrosurgical pencil including;

an elongated housing;

an electrocautery blade supported within the housing and extending distally from the housing, said electrocautery blade being connected to the source of electrosurgical energy;

a single activation button supported on the housing, said activation button being movable from a first position to a plurality of subsequent positions in order to activate a plurality of therapeutic effects and to vary an amount of electrosurgical energy transmitted to the electrocautery blade; and

a transducer electrically connected between the activation button and the source of electrosurgical energy, said transducer being configured to transmit a discrete electrical output signal to the electrosurgical energy source correlating to each of said plurality of subsequent positions of the activation button, the source of electrosurgical energy correspondingly supplying an amount of electrosurgical energy to the electrocautery blade dependant upon the discrete electrical output signal and at least one of said plurality of diverse therapeutic effects.

7. An electrosurgical system according to claim 6, wherein the activation button is configured to initiate transmission of the electrical output signal.

8. An electrosurgical system according to claim 7, wherein the activation button is configured for movement from a first position to a series of discrete, subsequent positions wherein each subsequent position corresponds to a specific amount of electrosurgical energy being transmitted to the electrocautery blade.

9. An electrosurgical system according to claim 7, wherein the transducer is a pressure-sensitive transducer.

10. An electrosurgical system according to claim 9, wherein the pressure transducer is configured to produce at least two output signals based upon the movement of the activation button.

11. An electrosurgical system according to claim 10, wherein one of the at least two signals produced by the pressure transducer transmits a signal to the electrosurgical generator corresponding to a cutting-type waveform and wherein the other of the at least two signals produced by the pressure transducer transmits a signal to the source of electrosurgical energy corresponding to a coagulating-type waveform.

12. An electrosurgical system according to claim 9, wherein the pressure transducer is configured to transmit a range of output signals to the source of electrosurgical energy in response to the position of the activation button, the range of output signals corresponding to a range of energy delivered from the source of electrosurgical energy to the electrocautery blade.

13. The electrosurgical system according to claim 6, wherein the activation button includes a slide-switch which is slidingly supported on the housing and is configured for selective movement along a slide path formed in the housing.

14. The electrosurgical system according to claim 13, wherein the transducer is configured to produce an output signal to the source of electrosurgical energy which corresponds to the movement of the slide-switch within the slide path of the housing.

15. The electrosurgical system according to claim 13, wherein the slide-switch transmits a range of output signals to the source of electrosurgical energy in response to the position of the slide-switch, the range of output signals varying from when the slide-switch is at a proximal-most position to when the slide switch is at a distal-most position.

16. The electrosurgical system according to claim 13, wherein the slide-switch is adapted to be depressed to initiate movement thereof and activation of the electrocautery blade.

17. An electrosurgical device, comprising:

a single activation button movable from a first position to a plurality of subsequent positions in order to activate a plurality of diverse therapeutic effects and to vary an amount of electrosurgical energy transmitted by the electrosurgical device; and

a transducer electrically connected between the activation button and a source of electrosurgical energy, said transducer being configured to transmit a discrete electrical output signal to the electro surgical energy source correlating to each of said plurality of subsequent positions of the activation button, the source of electrosurgical energy correspondingly supplying an amount of electrosurgical energy to the electrocautery blade dependant upon the discrete electrical output signal and at least one of said plurality of diverse therapeutic effects.

18. An electrosurgical device according to claim 17, wherein the activation button is configured for movement from a first position to a series of discrete, subsequent positions wherein each subsequent position corresponds to a specific amount of electrosurgical energy being transmitted by the electrosurgical device.

19. An electrosurgical device according to claim 18, wherein the transducer is configured to produce at least two output signals based upon the movement of the activation button.

20. An electrosurgical device according to claim 19, wherein one of the at least two signals produced by the pressure transducer transmits a signal to the electrosurgical generator corresponding to a cutting-type waveform and wherein the other of the at least two signals produced by the pressure transducer transmits a signal to the source of electrosurgical energy corresponding to a coagulating-type waveform.

21. An electrosurgical device according to claim 17, wherein the transducer is configured to transmit a range of output signals to the source of electrosurgical energy in response to the position of the activation button, the range of output signals corresponding to a range of energy emission from the source of electrosurgical energy to the electrosurgical device.

22. The electrosurgical device according to claim 17, wherein the activation button includes a slide-switch which is slidingly supported along a slide path formed in the device.

23. The electrosurgical device according to claim 22, wherein the transducer is configured to produce an output signal to the source of electrosurgical energy which corresponds to the movement of the slide-switch within the slide path.

24. The electrosurgical device according to claim 22, wherein the slide-switch transmits a range of output signals to the source of electrosurgical energy in response to the position of the slide-switch, the range of output signals varying from when the slide-switch is at a proximal-most position to when the slide switch is at a distal-most position.

25. The electrosurgical device according to claim 22, wherein the slide-switch is adapted to be depressed to initiate movement thereof and a transmission of electrosurgical energy.

26. A surgical device, comprising:

a housing having an activation switch disposed thereon, the activation switch adapted to couple to an electrosurgical energy source, the activation switch including a knob slidingly disposed within a guide channel defined within said housing; and

the activation switch being selectively moveable in a first direction within the guide channel to set a desired electrosurgical energy level and the activation switch being selectively moveable in a second direction to activate the electrosurgical energy source.

27. The surgical device according to claim 26, wherein the activation switch is operable to set the intensity level of electrosurgical energy before electrosurgical energy is activated.

28. The surgical device according to claim 26, wherein the knob is biased in an inactivated position.

29. The surgical device according to claim 26, wherein the guide channel includes a plurality of discreet positions, the knob being slideable between the plurality of discreet positions.

30. The surgical device according to claim 29, wherein tactile feedback is provided to a user when the knob is slid between the plurality of discreet positions on the guide channel.

31. The surgical device according to claim 26, wherein the device is an electrosurgical pencil.

32. A method for using a surgical device to administer electrosurgical energy to a patient, comprising the steps of:

providing a surgical device, including;

a housing having an activation switch disposed thereon, the activation switch adapted to couple to an electrosurgical energy source, the activation switch including a knob slidingly disposed within a guide channel defined within said housing; and

the activation switch being selectively moveable in a first direction within the guide channel to set a desired electrosurgical energy level and the activation switch being selectively moveable in a second direction to activate the electrosurgical energy source;

sliding the knob to set the intensity level of electrosurgical energy; and

depressing the knob to activate electrosurgical energy.

33. The method according to claim 32, wherein the activation switch is operable to set the intensity level of electrosurgical energy before electrosurgical energy is activated.

34. The method according to claim 32, wherein the guide channel includes a plurality of discreet positions, the knob being slideable between the plurality of discreet positions.

35. An electrosurgical system for performing electrosurgery on a patient, the electrosurgical system comprising:

an electrosurgical energy source that provides electrosurgical energy;

an active electrode which supplies electrosurgical energy to a patient;

an electrosurgical return electrode which returns electrosurgical energy to the electrosurgical energy source; and

a surgical device, including;

a housing having an activation switch disposed thereon, the activation switch adapted to couple to the electrosurgical energy source, the activation switch including a knob slidingly disposed within a guide channel defined within said housing; and

the activation switch being selectively moveable in a first direction within the guide channel to set a desired electrosurgical energy level and the activation switch being selectively moveable in a second direction to activate the clectrosurgical energy source.

36. The electrosurgical system according to claim 35, wherein the activation switch is operable to set the intensity level of clectrosurgical energy before electrosurgical energy is activated.

37. The electrosurgical system according to claim 35, wherein the guide channel includes a plurality of discreet positions, the knob being slideable between the plurality of discreet positions.