Aspirating cautery forceps

• US 9,737,648 B2
• Filed: 12/06/2013
• Issued: 08/22/2017
• Est. Priority Date: 12/06/2012
• Status: Active Grant

• Current Assignee: NICO Corporation
• Original Assignee: NICO Corporation
• Inventors: Mark, Joseph L., Dougherty, Brian C.
• Primary Examiner(s): Peffley, Michael
• Application Number:
  US14/099,564
• Publication Number:
  US 20140163547A1
• Time in Patent Office: 1,355 Days
• CPC Class Codes: A61B 18/148 having a short, rigid shaft for accessing the inner body transcutaneously, e.g. for neurosurgery or arthroscopy
• CPC Class Codes: A61B 2018/1475 Electrodes retractable in or deployable from a housing
• CPC Class Codes: A61B 2218/002 Irrigation
• CPC Class Codes: A61B 2218/007 Aspiration
• CPC Class Codes: A61M 1/85 with gas or fluid supply means, e.g. for supplying rinsing fluids or anticoagulants for negative pressure wound therapy A61M1/92, A61M1/94; combined with tracheal tubes A61M16/0463; dental instruments with combined rinsing and aspirating A61C17/0208

Abstract

Multiple surgical devices that may be used during surgical procedures are shown and described herein. A surgical device includes an outer cannula and an inner member that has a pair of electrodes positioned at a distal end. The inner member defines an aspiration delivery channel with an opening. A handle assembly actuates the outer cannula relative to the inner member, thereby adjusting a size of the opening of the aspiration delivery channel. In another exemplary configuration, an irrigation hub is provided to deliver irrigation through the surgical device.

Claims

1. A surgical device comprising:

an outer cannula;

an inner member disposed within the outer cannula and having a pair of electrode channels formed within the inner member, each channel being spaced apart from one another and having an electrode disposed therein, the electrodes extending from a distal end of the inner member, wherein the inner member defines an aspiration delivery channel having an opening at the distal end of the inner member, the electrodes not being exposed within the aspiration delivery channel due to the electrode channels; and

a selectively actuatable handle assembly connected to the outer cannula, the handle assembly moving the outer cannula distally over the inner member to selectively reduce a size of the opening of the aspiration delivery channel.

2. The surgical device of claim 1, wherein the inner member further comprises a tip member that defines the distal end of the inner member, wherein the tip member is constructed of a flexible material.

3. The surgical device of claim 2, wherein the surgical device is selectively configurable between an open position and a closed position, wherein when the surgical device is in the open position, the tip member extends radially outwardly from a distal end of the outer cannula, and wherein in the closed position, the tip member is at least partially compressed within the outer cannula.

4. The surgical device of claim 1, further comprising a vent tube in communication with the aspiration delivery channel, wherein the vent tube is configured to selectively relieve vacuum pressure from the aspiration delivery channel.

5. The surgical device of claim 1, wherein the inner member is defined by a wall thickness, and wherein the pair of electrode channels are disposed within the wall thickness.

6. A surgical device comprising:

an outer cannula;

an inner member disposed within the outer cannula and having a pair of electrode channels formed therein, each channel being spaced apart from one another and having an electrode disposed therein, the electrodes extending from a distal end of the inner member, wherein the inner member defines an aspiration delivery channel having an opening at the distal end of the inner member;

a selectively actuatable handle assembly connected to the outer cannula, the handle assembly moving the outer cannula over the inner member to selectively adjust a size of the opening of the aspiration delivery channel; and

a wheel hub, wherein the wheel hub is mounted for fixed rotational movement with the inner member, such that rotation of the wheel hub rotates the inner member with respect to the outer cannula.

7. The surgical device of claim 6, wherein a proximal end of the inner member is configured to be operatively attached to a vacuum supply source.

8. The surgical device of claim 6, further comprising an aspiration supply connector operatively connected to a proximal end of the inner member.

9. A surgical device comprising:

a support member;

an outer cannula fixedly mounted to a rail member;

an inner member disposed within the outer cannula and having a pair of electrode channels formed therein, each channel being spaced apart from one another and having an electrode disposed therein, the electrodes extending from a flexible tip member positioned at a distal end of the inner member, wherein the inner member defines an aspiration delivery channel having an opening at the distal end of the inner member; and

a handle assembly configured to move the rail member with respect to the support member to move the outer cannula over the inner member, thereby compressing the flexible tip member within the outer cannula.

10. A surgical device comprising:

an outer cannula;

an inner member disposed within the outer cannula and having a pair of electrodes extending from a distal end of the inner member, wherein the inner member defines an aspiration delivery channel having an opening at the distal end of the inner member;

a handle assembly configured to actuate the outer cannula relative to the inner member to selectively adjust a size of the opening of the aspiration delivery channel;

wherein the inner member further comprises a tip member constructed of a flexible material, the tip member defining the distal end of the inner member, wherein the tip member is defined by a wall thickness, and wherein the tip member further includes a pair of land members having an increased wall thickness as compared to a remainder of the tip member, wherein the land members are arranged in an opposing manner.

11. The surgical device of claim 10, wherein the pair of electrodes is positioned in the wall thickness that defines the tip member, adjacent the land members.

12. The surgical device of claim 10, wherein the land members are separated by the opening to the aspiration delivery channel.

13. A surgical device comprising:

an outer cannula;

an inner member disposed within the outer cannula and having a pair of electrodes extending from a distal end of the inner member, wherein the inner member defines an aspiration delivery channel having an opening at the distal end of the inner member, and wherein the inner member is defined by a wall thickness and a pair of electrode channels are disposed within the wall thickness, wherein the electrode channels are sized to be larger than the electrodes to create an annular gap between the electrodes and inner surface of the electrode channels; and

a handle assembly configured to actuate the outer cannula relative to the inner member to selectively adjust a size of the opening of the aspiration delivery channel.

14. A surgical device comprising:

an outer cannula;

an inner member disposed within the outer cannula and having a pair of electrodes channels formed therein, each channel being spaced apart from one another and having an electrode disposed therein, the electrodes extending from a distal end of the inner member, wherein the inner member defines an aspiration delivery channel having an opening at the distal end of the inner member;

a handle assembly configured to actuate the outer cannula to move the outer cannula over the inner member to selectively adjust a size of the opening of the aspiration delivery channel, and

a support member and a rail, wherein the rail is operatively engaged with the handle assembly such that actuation of the handle assembly moves the rail with respect to the support member.

15. The surgical device of claim 14, wherein the inner member is axially fixed with respect to the support member and wherein the outer cannula is operatively connected to the rail such that as the rail moves, the outer cannula moves over the inner member.

16. The surgical device of claim 15, further comprising an outer cannula mount fixedly mounted on the rail and wherein the outer cannula is fixed mounted to the outer cannula.

17. The surgical device of claim 14, wherein the handle assembly further comprises first and second arms, wherein the first arm is operatively connected to the rail such that as the first arm is moved, the rail moves, and wherein the second arm is fixedly connected to the support member.

18. A surgical device comprising:

an outer cannula;

an inner member disposed within the outer cannula and having a pair of electrodes channels formed therein, each channel being spaced apart from one another and having an electrode disposed therein, the electrodes extending from a distal end of the inner member, wherein the inner member defines an aspiration delivery channel having an opening at the distal end of the inner member;

a handle assembly configured to actuate the outer cannula to move the outer cannula over the inner member to selectively adjust a size of the opening of the aspiration delivery channel; and

an irrigation hub that is in communication with the electrode channels, wherein the irrigation hub is configured to be operatively connected to an irrigation supply to deliver irrigation through the electrode channels.

19. The surgical device of claim 18, wherein the irrigation hub further comprises a fitting member that is configured to connect to the irrigation supply, a passageway into which the inner member extends, and a channel that is in communication with the fitting member and with notches formed through the inner member that are in communication with the electrode channels.

20. The surgical device of claim 19, further comprising sealing members disposed distally and proximally of the notches, wherein the sealing members cooperate with the inner member to define a sealed irrigation chamber within the irrigation hub.