Rotatable bipolar forceps

• US 6,409,728 B1
• Filed: 08/01/2000
• Issued: 06/25/2002
• Est. Priority Date: 08/25/1999
• Status: Expired due to Term

• Current Assignee: Covidien AG (Medtronic Plc)
• Original Assignee: Sherwood Services AG
• Inventors: Ehr, Chris, Hluchy, Heinz, Arroyo, Valintina
• Primary Examiner(s): GIBSON, ROY DEAN
• Application Number:
  US09/629,670
• Time in Patent Office: 693 Days
• Field of Search: 606/41, 606/42, 606/45-52, 606/205-208
• US Class Current: 606/51
• 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 2017/0046 with a releasable handle; with handle and operating part separable for prosthetic joint-implanting tools A61F2/4603
• CPC Class Codes: A61B 2017/2948 Sealing means, e.g. for sealing the interior from fluid entry
• CPC Class Codes: A61B 2018/1495 Electrodes being detachable from a support structure

Abstract

A rotatable bipolar forceps for clamping and coagulating tissue includes a body portion and an electrode which is selectively removable from the body portion. The forceps further includes at least one handle attached to the body portion for imparting movement to a shaft which causes the jaws to move from a first open position wherein the jaws are disposed in spaced relation relative to one another to a second clamping position wherein the jaws cooperate to grasp tissue therebetween. A rotating member rotates the electrode and the jaws relative to a longitudinal axis disposed through the body portion and releasably couples the electrode to the housing.

Claims

1. A rotatable bipolar forceps, comprising:

a body portion defining a longitudinal axis;

an electrode selectively removable from the body portion;

the electrode connecting a pair of jaws to a source of electrical energy;

a shaft extending from the body portion;

at least one handle attached to the body portion for imparting movement to the shaft which causes the jaws to move from a first open position wherein the jaws are disposed in spaced relation relative to one another to a second clamping position wherein the jaws are moved closer together to grasp tissue therebetween; and

a rotating member cooperating with the electrode;

the rotating member rotating the electrode and the jaws relative to the longitudinal axis of the body portion and releasably coupling the electrode to the body portion.

2. A rotatable bipolar forceps according to claim 1 wherein the shaft further comprises:

an outer shaft removably coupled to the body portion; and

an inner shaft disposed within the outer shaft which is movable relative to the outer shaft upon movement of the handle, the inner shaft being dimensioned to house the electrode therein.

3. A rotatable bipolar forceps according to claim 2 wherein the inner shaft is removably coupled to the body portion.

4. A rotatable bipolar forceps according to claim 2 wherein the inner shaft is insulated.

5. A rotatable bipolar forceps according to claim 2 wherein movement of the inner shaft relative to the outer shaft causes the jaws to move from the first position to the second position.

6. A rotatable bipolar forceps according to claim 1 wherein the rotating member includes a lever which couples to a distal end of the electrode, the lever for imparting rotational movement to the electrode and the jaws.

7. A rotatable bipolar forceps according to claim 6 wherein the lever rotates the electrode and the jaws about 60 degrees on either side of the longitudinal axis.

8. A rotatable bipolar forceps according to claim 6 wherein the rotating member further includes a guide clip which selectively couples to the body portion to control the rotational movement of the lever.

9. A rotatable bipolar forceps according to claim 8 wherein the guide clip includes an arcuate-shaped slot disposed therein for controlling the rotational movement of the lever.

10. A rotatable bipolar forceps according to claim 8 wherein the guide clip includes a plurality of graduations for releasably locking the lever at various locations during rotation.

11. A rotatable bipolar forceps according to claim 6 wherein the body portion further includes a groove which selectively receives any one of a series of interchangeable guide clips each having differently-shaped slots disposed therein for controlling the rotational movement of the lever.

12. A rotatable bipolar forceps according to claim 6 wherein the lever is mechanically coupled to the electrode.

13. A rotatable bipolar forceps according to claim 6 wherein the lever is biased in a substantially normal position relative to the longitudinal axis.

14. A rotatable bipolar forceps according to claim 13 wherein the lever includes a spring which biases the lever in the normal position.

15. A rotatable bipolar forceps according to claim 6 whne the lever includes a spring release member which operates to selectively couple the distal end of the electrode to the lever.

16. A rotatable bipolar forceps according to claim 15 wherein a force applied against the spring release member disengages the electrode from the rotating member.

17. A rotatable bipolar forceps according to claim 6 wherein the body portion further comprises an aperture located substantially therethrough and the lever further comprises an aperture which aligns with the body aperture to receive said electrode therethrough.

18. A rotatable bipolar forceps according to claim 17 wherein the lever further includes a spring release member aperture with the body aperture to allow movement of the electrode for assembly or disassembly when a force is applied against the spring release member.

19. A rotatable bipolar forceps according to claim 18 wherein the body aperture and the spring release member aperture are substantially coaxial with the longitudinal axis when the force is applied against the spring release member.