Combination electrosurgical device

• US 10,893,900 B2
• Filed: 01/05/2015
• Issued: 01/19/2021
• Est. Priority Date: 03/15/2013
• Status: Active Grant

• Current Assignee: Gyrus ACMI, Inc. (Olympus Corporation)
• Original Assignee: Gyrus ACMI, Inc. (Olympus Corporation)
• Inventors: Windgassen, Ryan, Blus, Theodore
• Primary Examiner(s): Peffley, Michael F
• Assistant Examiner(s): Ouyang, Bo
• Application Number:
  US14/589,515
• Publication Number:
  US 20150119885A1
• Time in Patent Office: 2,206 Days
• CPC Class Codes: A61B 18/1233 with circuits for assuring patient safety
• CPC Class Codes: A61B 18/1442 Probes having pivoting end effectors, e.g. forceps
• CPC Class Codes: A61B 18/1445 at the distal end of a shaft, e.g. forceps or scissors at the end of a rigid rod
• CPC Class Codes: A61B 2018/00589 Coagulation
• CPC Class Codes: A61B 2018/00595 Cauterization
• CPC Class Codes: A61B 2018/00601 Cutting
• CPC Class Codes: A61B 2018/00607 Coagulation and cutting with the same instrument
• CPC Class Codes: A61B 2018/1412 Blade
• CPC Class Codes: A61B 2018/1462 Tweezers

Abstract

An electrosurgical device comprising: (a) forceps including: (i) a first working arm and (ii) a second working arm; (b) a blade electrode; wherein the electrosurgical device is capable of being switched between a first electrical configuration so that the electrosurgical device delivers a first therapy current through the first working arm, the second working arm, or both, and a second electrical configuration so that the electrosurgical device delivers a second therapy current through the blade electrode; and wherein the first working arm and the second working arm of the forceps are immobilized in the second electrical configuration so that both the forceps and the first therapy current are disabled.

Claims

1. An electrosurgical device comprising:

a hand held portion comprising;

one or more power connectors that are configured to connect the hand held portion of the electrosurgical device to a generator;

a housing including;

a spring pin located within the housing of the hand held portion, the spring pin having a contact arm with a cantilever connection;

a portion of a blade electrode, located within the housing, the blade electrode being movable between a first position and a second position relative to the spring pin while remaining within the housing; and

an insulator sleeve receiving a portion of the blade electrode;

wherein the electrosurgical device is capable of being switched between a first configuration and a second configuration so that the electrosurgical device delivers a therapy current through the blade electrode;

wherein the spring pin is in contact with the insulator sleeve when the electrosurgical device is in the first configuration; and

wherein the spring pin is located between the housing and the portion of the blade electrode located within the housing and the spring pin is movable to extend the contact arm into direct contact with the blade electrode, when the blade electrode is in the second position, so that power is provided to the blade electrode through the spring pin.

2. The electrosurgical device of claim 1, wherein the spring pin is deflectable as the blade electrode is moved between the first position and the second position so that a constant contact is created between the spring pin and the blade electrode.

3. The electrosurgical device of claim 2, wherein the blade electrode has a varying thickness and the spring pin is movable to maintain the constant contact as the thickness of the blade electrode varies during movement of the blade electrode.

4. The electrosurgical device of claim 3, wherein the insulator sleeve varies the thickness of the blade electrode.

5. The electrosurgical device of claim 1, wherein the spring pin is free of direct contact with the blade electrode when the blade electrode is in the first position, and the blade electrode in the first position is aligned with the spring pin.

6. The electrosurgical device of claim 1, wherein the spring pin includes a body portion that is capable of connecting the spring pin within the electrosurgical device, provides a connection point for one or more other components, or both.

7. The electrosurgical device of claim 6, wherein the spring pin includes one or more springing portions extending from the body portion, the one or more springing portions being located between the body portion and the contact arm and the cantilever connection is between the contact arm and the one or more springing arms.

8. The electrosurgical device of claim 7, wherein the one or more springing portions are movable to accommodate for a change in size and/or shape of the blade electrode as the blade electrode moves between the first position and the second position.

9. The electrosurgical device of claim 7, wherein the one or more springing portions create a movable connection.

10. The electrosurgical device of claim 7, wherein a pair of opposing connection arms extend from the body portion and the connection arms form an electrical connection with a printed circuit board that is located within the housing of the electrosurgical device.

11. The electrosurgical device of claim 10, wherein the printed circuit board is in communication with a bipolar activation button, a monopolar activation button, or both.

12. The electrosurgical device of claim 6, wherein the body portion includes one or more connection arms that extend from the body portion and connect the spring pin to circuitry.

13. The electrosurgical device of claim 1, wherein the spring pin includes a body portion that assists in connecting the spring pin within the electrosurgical device directly to circuitry and the blade electrode so that power is transferred from the circuitry to the blade electrode,

wherein the contact arm is connected to the body portion by the cantilever connection with a springing portion, and the springing portion folds back upon itself so that the contact arm is located below and under the body portion.

14. The electrosurgical device of claim 13, wherein the housing includes an outer housing and an internal housing, and the internal housing is located within the outer housing and the internal housing encases the printed circuit board and the spring pin.

15. The electrosurgical device of claim 1, wherein the electrosurgical device includes forceps with a first working arm and a second working arm and the blade electrode is located between the first working arm and the second working arm, and the housing receives a portion of the first working arm, the second working arm, and the blade electrode, and

wherein the spring pin is located between the housing and the blade electrode.

16. The electrosurgical device of claim 15, wherein the blade electrode changes from the first configuration to the second configuration as the blade electrode is movable to extend between the first working arm and the second working arm.

17. An electrosurgical device comprising:

a hand held portion comprising;

a. one or more power connectors that are configured to connect the hand held portion of the electrosurgical device to a generator;

b. forceps including;

i. a first working arm and

ii. a second working arm;

c. a printed circuit board;

d. a blade electrode that is movable between a first position and a second position relative to the first working arm and the second working arm;

e. a spring pin connected to and supported by the printed circuit board and the spring pin extending into direct contact with the blade electrode when the blade electrode is in the second position so that power is provided to the blade electrode through the spring pin, the spring pin including;

i. a body portion and

ii. a springing portion connected to the body portion and extending cantilever from the body portion;

and

f. a housing that receives a portion of the first working arm, the second working arm, and the blade electrode, and the spring pin and the printed circuit board are entirely located within the housing;

wherein the electrosurgical device is capable of being switched between a first electrical configuration where the electrosurgical device delivers a first therapy current through the first working arm, the second working arm, or both, and a second configuration where the electrosurgical device delivers a second therapy current through the blade electrode; and

wherein the first working arm and the second working arm of the forceps are immobilized in the second electrical configuration so that both the forceps and the first therapy current are disabled.

18. The electrosurgical device of claim 17, wherein the spring pin includes:

I. a pair of opposing connection arms that are connected to and extend from the body portion, the pair of opposing connection arms connect the spring pin directly to the printed circuit board that is located entirely within the housing of the hand held portion; and

II. one or more contact arms connected to an extending from the springing portion that connects the one or more contact arms to the body portion, the one or more contact arms being in contact with the blade electrode;

wherein the spring pin is free of direct contact with the blade electrode when the blade electrode is in the first position; and

wherein the springing portion of the spring pin is deflected by the blade electrode as the blade electrode is moved between the first position and the second position so that a constant contact is created between the spring pin and the blade electrode or an insulator sleeve on the blade electrode, and the spring pin is in contact with the insulator sleeve when the electrosurgical device is in the first electrical configuration.

19. The electrosurgical device of claim 18, wherein the blade electrode has a varying thickness along a length of the blade electrode and the spring pin is movable to maintain the constant contact along the length of the blade electrode as the thickness of the blade electrode varies during movement of the blade electrode.

20. The electrosurgical device of claim 18, wherein the body portion, springing portion, the pair of opposing connection arms, and the one or more contact arms are one piece of material and the springing portion creates a force that moves the one or more contact arms relative to the body portion.