Vacuum assisted surgical dissection tools

Patent metadata

Field	Value
Publication number	US-9622765-B2
Application number	US-57929609-A
Country	US
Kind code	B2
Filing date	Oct 14, 2009
Priority date	Oct 23, 2008
Publication date	Apr 18, 2017
Grant date	Apr 18, 2017

Abstract

A surgical device comprising a handle, an elongated tube extending distally from the handle, and a suction tip at a distal end portion of the elongated tube. The suction tip has a cavity formed therein. A cutting blade is positioned at least partially within the cavity and rotatable across the cavity to sever tissue, the cavity dimensioned to receive the severed tissue for removal from a patient's body.

First claim

What is claimed is:

1. A surgical device comprising:
a handle;
an elongated tube extending distally from the handle, the elongated tube defining a vacuum lumen therethrough;
a suction tip at a distal end portion of the elongated tube, the suction tip having an outwardly-facing, substantially hemispherical cavity formed therein with an open distal end, the vacuum lumen of the elongated tube opening into the cavity of the suction tip to facilitate application of a vacuum to the cavity; and
a C-shaped cutting blade having a first end directly, rotatably connected to the suction tip and a second end directly, rotatably connected to the suction tip, the cutting blade being positioned at least partially within the cavity and rotatable across the cavity to sever tissue, the cavity being dimensioned to receive tissue severed by the cutting blade to facilitate removal from a patient's body.

2. The device of claim 1 , wherein the handle includes a manual member for rotating the cutting blade across the cavity.

3. The device of claim 2 , wherein the manual member is operatively connected to an elongated actuator, the actuator being operatively connected to the cutting blade, wherein sliding movement of the manual member moves the actuator to rotate the cutting blade.

4. The surgical device of claim 3 , wherein the actuator has a distal end fixedly connected to the cutting blade such that distal longitudinal movement of the actuator rotates the cutting blade.

5. The surgical device of claim 4 , wherein the distal end of the actuator flexes in response to rotating the cutting blade.

6. The surgical device of claim 5 , wherein the distal end of the actuator is fixedly connected to the cutting blade at a location adjacent the first end of the cutting blade.

7. The surgical device of claim 6 , wherein the actuator defines a longitudinal axis, the distal end of the actuator extending laterally relative to the longitudinal axis of the actuator.

8. The device of claim 2 , wherein the manual member includes a pivotable trigger, the trigger being operatively connected to an elongated actuator, the actuator being operatively connected to the cutting blade, wherein pivoting movement of the manual member moves the actuator to rotate the cutting blade.

9. The device of claim 2 , wherein the manual member includes a plunger, the plunger being operatively connected to an elongated actuator, the actuator being operatively connected to the cutting blade, wherein sliding movement of the plunger moves the actuator to rotate the cutting blade.

10. The device of claim 2 , further comprising an elongated rod operably associated with the manual member and the cutting blade to rotate the cutting blade.

11. The device of claim 1 , wherein the cutting blade rotates across the cavity in an arc of about 180 degrees.

12. The device of claim 1 , further comprising a rotatable knob for rotating the suction tip and the elongated tube about a longitudinal axis of the elongated tube.

13. The device of claim 1 , wherein in an undeployed position of the cutting blade, the cutting blade is concealed within the cavity, and in a deployed position of the cutting blade, at least a portion of the cutting blade extends distally beyond the cavity.

14. The device of claim 13 , wherein the cutting blade rotates across the cavity in an arc of about 180 degrees.

15. The device of claim 1 , wherein at least one of the vacuum lumen and the cavity are configured and dimensioned to permit the passage of severed tissue therethrough upon the activation of the vacuum.

16. The device of claim 15 , wherein the vacuum lumen is configured and dimensioned to draw severed tissue through both the cavity and the vacuum lumen upon the activation of the vacuum.

17. The device of claim 1 , wherein the vacuum lumen and the cavity each define an axis therethrough that is disposed in alignment with a longitudinal axis extending through the elongated tube.

18. The device of claim 1 , wherein the cavity increases in size from a proximal end of the cavity to the open distal end of the cavity such that the open distal end of the cavity is an enlarged opening.

19. A surgical device system comprising:
a surgical device, including:
a handle;
an elongated tube extending distally from the handle, the elongated tube defining a vacuum lumen therethrough;
a suction tip at a distal end portion of the elongated tube, the suction tip defining an outwardly-facing, substantially hemispherical cavity, the vacuum lumen of the elongated tube opening into the cavity of the suction tip to facilitate the application of a vacuum to the cavity; and
a C-shaped cutting blade having a first end directly, rotatably connected to the suction tip and a second end directly, rotatably connected to the suction tip, the cutting blade being positioned at least partially within the cavity and rotatable across the cavity to sever tissue, the cavity being configured and dimensioned to receive and maintain severed tissue therein upon activation of the vacuum; and
a container configured to receive the severed tissue upon deactivation of the vacuum.

20. The surgical device of claim 19 , wherein a majority of a length of the cutting blade is flush with an inner surface of the suction tip.

21. The surgical device system of claim 19 , wherein the cavity increases in size from a proximal end of the cavity to a distal end of the cavity such that the distal end of the cavity defines an enlarged opening.

22. A surgical device comprising:
an elongated tube defining a vacuum lumen;
a suction tip positioned adjacent a distal end portion of the elongated tube and defining a cavity, the vacuum lumen being in communication with the cavity to facilitate creation of a vacuum within the cavity; and
a C-shaped cutting blade having a first end directly, rotatably connected to the suction tip and a second end directly, rotatably connected to the suction tip, the cavity being configured and dimensioned to receive tissue severed by the cutting blade to facilitate removal of the tissue from a patient's body, wherein the cutting blade is arcuate.

23. The surgical device of claim 22 , wherein the cavity faces distally, and has a substantially hemispherical configuration.

24. The surgical device of claim 22 , wherein the cutting blade is positioned at least partially within the cavity.

25. The surgical device of claim 24 , wherein the cutting blade is movable between a first position, wherein the cutting blade is concealed within the cavity and a center point of the cutting blade is offset from a central longitudinal axis defined by the elongated tube, and a second position, wherein the cutting blade is at least partially exposed from the cavity and the center point of the cutting blade is disposed at the central longitudinal axis.

26. The surgical device of claim 22 , wherein the cutting blade is rotatable about a fixed point.

Assignees

• Racenet Danyel J
• Wells Timothy N
• Bennett Steven L
• Elachchabi Amin
• Bettuchi Michael J
• Hember Miles William Noel
• Covidien Lp

Inventors

• Racenet Danyel J
• Wells Timothy N
• Bennett Steven L
• Elachchabi Amin
• Bettuchi Michael J
• Hember Miles William Noel

Classifications

• A61B2017/00367

  Details of actuation of instruments, e.g. relations between pushing buttons, or the like, and activation of the tool, working tip, or the like · CPC title

• A61B2017/32004

  having a laterally movable cutting member at its most distal end which remains within the contours of said end · CPC title

• A61B18/00

  Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body (eye surgery A61F9/007; ear surgery A61F11/00) · CPC title

• A61B10/06

  Biopsy forceps {, e.g. with cup-shaped jaws} · CPC title

• A61B2017/308

  with suction cups · CPC title