Dissection Scissors on Surgical Device

• US 20130103031A1
• Filed: 10/20/2011
• Published: 04/25/2013
• Est. Priority Date: 10/20/2011
• Status: Active Grant

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Tyco Healthcare Group LP (Medtronic Plc)
• Inventors: Garrison, David M.
• Granted Patent: US 9,492,221 B2
• Time in Patent Office: Days
• US Class Current: 606/42
• 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 2017/2945 Curved jaws
• CPC Class Codes: A61B 2018/00404 Blood vessels other than those in or around the heart
• CPC Class Codes: A61B 2018/00428 Severing
• 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 2018/0063 Sealing
• CPC Class Codes: A61B 2018/00916 with means for switching or controlling the main function of the instrument or device
• CPC Class Codes: A61B 2018/00922 by switching or controlling the treatment energy directly within the hand-piece
• CPC Class Codes: A61B 2018/00928 by sending a signal to an external energy source
• CPC Class Codes: A61B 2018/00958 for switching between different working modes of the main function
• CPC Class Codes: A61B 2018/1407 Loop
• CPC Class Codes: A61B 2018/141 Snare
• CPC Class Codes: A61B 2018/1455 having a moving blade for cutting tissue grasped by the jaws
• CPC Class Codes: A61B 2018/1457 having opposing blades cutting tissue grasped by the jaws, i.e. combined scissors and pliers
• CPC Class Codes: A61B 2018/146 Scissors

Abstract

A surgical instrument includes an end effector and a housing mechanically coupled to the end effector. The end effector includes a first actuating device configured to perform a first surgical procedure and a second actuating device integrally associated with the first actuating device and configured to perform a second surgical procedure, the second surgical procedure being independently operable and different than the first surgical procedure. An outer portion of the first actuating device and an outer portion of the second actuating device form a portion of an outer housing of the end effector. The housing includes a first actuator, mechanically coupled to the first actuating device and configured to impart movement to the first actuating device and a second actuator, mechanically coupled to the second actuating device and configured to impart movement to the second actuating device.

Claims

1. A surgical instrument, comprising:

an end effector including;

a first actuating device configured to perform a first surgical procedure;

a second actuating device integrally associated with the first actuating device and configured to perform a second surgical procedure, the second surgical procedure being independently operable and different than the first surgical procedure;

wherein an outer portion of the first actuating device and an outer portion of the second actuating device form a portion of an outer housing of the end effector; and

a housing, mechanically coupled to the end effector, the housing including;

a first actuator, mechanically coupled to the first actuating device and configured to impart movement to the first actuating device; and

a second actuator, mechanically coupled to the second actuating device and configured to impart movement to the second actuating device.

2. The surgical instrument of claim 1, wherein the first actuating device further includes a first jaw member and a second jaw member, the first and second jaw members configured to move relative to one another about a first pivot from a first position wherein the first jaw member and second jaw member are disposed in spaced relation relative to one another to a second position wherein the first jaw member and second jaw member cooperate to perform the first surgical procedure on tissue positioned therebetween.

3. The surgical instrument of claim 2, wherein the second actuating device includes a cutting device integrally associated with the first jaw member and configured to move relative to the first jaw member and about a second pivot from a first position wherein the first jaw member and at least a portion of the cutting device are disposed in a spaced relationship relative to one another to a second position wherein the first jaw member and cutting device cooperate to perform a second surgical procedure on tissue positioned therebetween.

4. The surgical instrument of claim 3, wherein the first actuator is configured to actuate at least one of the first jaw member and second jaw member about the first pivot and the second actuator is configured to actuate at least one of the cutting device and first jaw member about the second pivot.

5. The surgical instrument of claim 1, wherein the first surgical procedure is tissue sealing and the second surgical procedure is tissue cutting.

6. The surgical instrument of claim 5, wherein the first jaw member and second jaw member are adapted to connect to a source of electrosurgical energy such that the first jaw member and second jaw member are capable of selectively conducting energy through tissue held therebetween to effect a tissue seal and the cutting device and first jaw member are configured to cut tissue positioned therebetween.

7. The surgical instrument of claim 3, wherein the cutting device includes a first shearing surface and the first jaw member includes a second shearing surface, wherein the first shearing surface and second shearing surface cooperate to cut tissue therebetween.

8. The surgical instrument of claim 7, wherein the cutting device cuts tissue in a scissor-like fashion.

9. The surgical instrument of claim 8, wherein the cutting device formed by the first and second shearing surfaces is substantially curved.

10. The surgical instrument of claim 7, wherein the cutting device includes at least one electrode configured to selectively connect to a source of electrosurgical energy and the cutting device electrosurgically cuts tissue positioned between the cutting device and the first jaw member.

11. The surgical instrument of claim 10, wherein the first jaw member includes a first electrosurgically conductive surface and a second electrosurgical conductive surface and is configured to selectively conduct electrosurgically energy both between the first electrosurgical conductive surface and the second jaw member between the second electrosurgical conductive surface and the cutting device.

12. The surgical instrument of claim 10, wherein the second surgical procedure is performed in a monopolar fashion.

13. The surgical instrument of claim 12, wherein the second surgical procedure is performed in a bipolar fashion.

14. A surgical instrument, comprising:

an end effector including;

a first actuating device including a first treatment member and a second treatment member configured to move relative to one another about a first pivot and each of the first and second treatment members adapted to selectively connect to a source of electrosurgical energy, wherein the first actuation device is configured to seal tissue positioned between the first treatment member and the second treatment member;

a second actuating device including a third treatment member, the second actuation device integrally associated with the first actuating member, the third treatment member configured to move relative to the first treatment member about a second pivot, the second pivot being different than the first pivot, the third treatment member adapted to selectively connect to a source of electrosurgical energy wherein the second actuating device is configured to cut tissue positioned between the first treatment member and the third treatment member,

wherein an outer portion of the first actuating device and an outer portion of the second actuating device form a portion of an outer housing of the end effector; and

a housing, mechanically coupled to the end effector, the housing including;

a first actuator, mechanically coupled to the first actuating device and configured to impart movement to the first actuating device;

a second actuator, mechanically coupled to the second actuating device and configured to impart movement to the second actuating device; and

a switch configured to select the mode of operation for the surgical instrument.

15. The surgical instrument of claim 14, wherein the switch is configured to select a bipolar sealing mode wherein the first treatment member receives electrosurgical energy at a first potential, the second treatment member receives electrosurgical energy at a second potential different than the first potential and the first actuating device provides treatment to tissue positioned between the first treatment member and the second treatment member to seal tissue in a bipolar fashion.

16. The surgical instrument of claim 14, wherein the switch is configured to select a bipolar cutting mode wherein the first and second treatment members receive electrosurgical energy at a first potential, the third treatment member receives electrosurgical energy at a second potential different than the first potential and the second actuating device provides treatment to tissue positioned between the first treatment member and the second treatment member to cut tissue in a bipolar fashion.

17. The surgical instrument of claim 14, wherein the switch is configured to select a monopolar sealing mode wherein at least one of the first treatment member and second treatment member receive electrosurgical energy at a first potential and electrically cooperate with a remotely disposed return pad engaged to patient tissue to treat tissue in a monopolar fashion and the first actuating device provides treatment to tissue positioned between the first and second treatment members to seal tissue in a monopolar fashion.

18. The surgical instrument of claim 14, wherein the switch is configured to select a monopolar cutting mode wherein the third treatment member receives electrosurgical energy at a first potential and electrically cooperates with a remotely disposed return pad engaged to patient tissue and the second actuating device provides treatment to tissue positioned between the first treatment member and the third treatment member to cut tissue in a monopolar fashion.

19. The surgical instrument of claim 14, wherein the switch is configured to select between at least two of bipolar sealing between the first and second treatment members, monopolar sealing between one of the first treatment member and the second treatment member and a remotely disposed return pad engaged to patient tissue, bipolar cutting between the third treatment member and the first and second treatment members, and monopolar cutting between the third treatment member and the remotely disposed return pad engaged to patient tissue.