Surgical tissue sealer

• US 8,752,264 B2
• Filed: 03/06/2012
• Issued: 06/17/2014
• Est. Priority Date: 03/06/2012
• Status: Expired due to Fees

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Covidien LP (Medtronic Plc)
• Inventors: Allen, James D. IV, Artale, Ryan C., Brandt, Kim V., Butcher, Dennis W., Chojin, Edward M., Couture, Gary M., Cunningham, James S., Garrison, David M., Hart, Keir, Horner, Glenn A., Joseph, Daniel A., Kerr, Duane E., Kingsley, Dylan R., Mueller, Peter M., Olson, Jessica E. C., O'Neill, Sean T., Sanders, Jason T., Sharp, Robert M., Twomey, John R., Unger, Jeffrey R., Ackley, Joanna, Hempstead, Russell D.
• Primary Examiner(s): Bryant, David
• Assistant Examiner(s): YOO, JUN S
• Application Number:
  US13/412,897
• Publication Number:
  US 20130232753A1
• Time in Patent Office: 833 Days
• Field of Search: 294/075, 294/070.9, 294/34, 294/45, 294/64, 297/01, 292/815, 336/13, 336/26, 336/45, 606/51
• US Class Current: 29/407.05
• 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 2017/00526 Methods of manufacturing
• CPC Class Codes: A61B 2018/0063 Sealing
• CPC Class Codes: A61B 2090/034 abutting on parts of the device itself
• CPC Class Codes: B29C 31/008 Handling preformed parts, e.g. inserts B29C37/001 takes precedence; for injection moulding B29C45/14008; for blow moulding B29C49/2408; for thermoforming B29C51/165
• CPC Class Codes: Y10T 29/49771 Quantitative measuring or gauging
• CPC Class Codes: Y10T 29/4984 Retaining clearance for motion between assembled parts
• CPC Class Codes: Y10T 29/49895 Associating parts by use of aligning means [e.g., use of a drift pin or a "fixture"]

Abstract

A method for manufacturing an end effector assembly is provided. The method includes grasping a gap-setting gauge between first and second jaw members moveable relative to one another about a pivot between a first, spaced-apart position and a second position proximate tissue and setting the first and second jaw members such that in the approximated position the jaw members cooperate to define a gap distance between the jaw members equivalent to the thickness of the gap-setting gauge such that when positioning tissue between the jaw members full approximation of the jaws is limited to the gap distance.

Claims

1. A method for manufacturing an end effector assembly, the method comprising:

providing first and second jaw members moveable relative to one another about a pivot between a first, spaced-apart position and a second position closer to one another wherein the first and second jaw members cooperate to grasp tissue therebetween, each of the first and second jaw members including a jaw housing;

grasping a gap-setting gauge between the first and second jaw members;

depositing a non-solid material into the jaw housings; and

solidifying the non-solid material to secure a first sealing surface and a second sealing surface within the first and second jaw members, respectively, thereby setting the first and second jaw members such that in the second position the jaw members cooperate to define a gap distance between the jaw members equivalent to the thickness of the gap-setting gauge such that, when positioning tissue between the jaw members, full approximation of the jaw members is limited to the gap distance.

2. The method according to claim 1, further comprising:

releasably attaching a stop member to the first jaw member, wherein the second jaw member includes a cavity configured to receive the stop member therein to set the gap distance.

3. The method according to claim 2, wherein each of the stop member and the cavity includes at least one surface feature each of which is configured to interlockingly engage with each other, thereby securing the stop member within the second jaw member.

4. The method according to claim 3, further comprising:

detaching the stop member from the first jaw member to set the gap distance.

5. A method for manufacturing an end effector assembly, the method comprising:

grasping a gap-setting gauge between first and second jaw members moveable relative to one another about a pivot between a first, spaced-apart position and an approximated position wherein the first and second jaw members cooperate to grasp tissue therebetween;

inserting an adjustable stop member into at least one of the first and second jaw members;

setting the first and second jaw members such that in the approximated position the jaw members cooperate to define a gap distance between the jaw members equivalent to the thickness of the gap-setting gauge; and

securing the adjustable stop member to the at least one of the first and second jaw members such that when positioning tissue between the jaw members, full approximation of the jaw members is limited to the gap distance.

6. The method according to claim 5, wherein the other of the at least one of the first and second jaw members includes a cavity configured to receive the stop member therein.

7. The method according to claim 6, wherein each of the stop member and the cavity includes at least one surface feature each of which is configured to interlockingly engage with each other.

8. The method according to claim 7, further comprising:

releasably attaching the stop member to the first jaw member;

inserting the stop member into the cavity, thereby securing the stop member within the second jaw member; and

detaching the stop member from the first jaw member to set the gap distance.

9. A method for manufacturing an end effector assembly, the method comprising:

providing first and second jaw members moveable relative to one another about a pivot between a first, spaced-apart position and a second position closer to one another wherein the first and second jaw members cooperate to grasp tissue therebetween;

releasably attaching a stop member to the first jaw member, the second jaw member including a cavity configured to receive the stop member therein to set a gap distance, each of the stop member and the cavity including at least one surface feature, each of which being configured to interlockingly engage with each other, thereby securing the stop member within the second jaw member;

detaching the stop member from the first jaw member to set the gap distance;

grasping a gap-setting gauge between the first and second jaw members; and

setting the first and second jaw members such that in the second position the jaw members cooperate to define the gap distance between the jaw members equivalent to the thickness of the gap-setting gauge such that when positioning tissue between the jaw members full approximation of the jaws is limited to the gap distance.

10. The method according to claim 9, wherein grasping a gap-setting gauge between the first and second jaw members includes positioning the gap-setting gauge between the first and second jaw members.