Surgical stapler with timer and feedback display

• US 8,052,024 B2
• Filed: 12/03/2010
• Issued: 11/08/2011
• Est. Priority Date: 06/03/2005
• Status: Active Grant

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Tyco Healthcare Group LP (Medtronic Plc)
• Inventors: Heinrich, Russell, Soltz, Michael A., Krehel, Gregg, Viola, Frank J., DeSantis, Robert J., Holsten, Henry E.
• Primary Examiner(s): Smith; Scott A.
• Application Number:
  US12/959,421
• Publication Number:
  US 20110068146A1
• Time in Patent Office: 340 Days
• Field of Search: 227/19, 227/175.1, 227/175.2, 227/176.1, 227/180.1, 606/139, 606/219, 606/143, 606/151, 606/9, 606/129, 173/20
• US Class Current: 227/175.2
• CPC Class Codes: A61B 17/068 Surgical staplers , e.g. containing multiple staples or clampsstaplers containing only one staple A61B17/10; magazines or containers for staples A61B17/105; for performing anastomosis A61B17/115; staplers in general B25C5/00
• CPC Class Codes: A61B 17/072 for applying a row of staples in a single action , e.g. the staples being applied simultaneously
• CPC Class Codes: A61B 17/07207 the staples being applied sequentially
• CPC Class Codes: A61B 17/12 for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord specially adapted for vas deferens or fallopian tubes A61F6/20; materials for ligaturing blood vessels A61L17/00
• CPC Class Codes: A61B 2017/00115 with audible or visual output with imaging means A61B90/37, A61B34/20
• CPC Class Codes: A61B 2017/00128 related to intensity or progress of surgical action
• CPC Class Codes: A61B 2017/00398 using powered actuators, e.g. stepper motors, solenoids
• CPC Class Codes: A61B 2017/00734 battery operated
• CPC Class Codes: A61B 2017/07214 Stapler heads
• CPC Class Codes: A61B 2017/2943 Toothed members, e.g. rack and pinion
• CPC Class Codes: A61B 2017/320052 Guides for cutting instruments by marking A61B2090/395
• CPC Class Codes: A61B 2090/064 for measuring force, pressure or mechanical tension
• CPC Class Codes: A61B 2090/0811 for the position of a particular part of an instrument with respect to the rest of the instrument, e.g. position of the anvil of a stapling instrument

Abstract

A surgical apparatus has a clamp and a stapling mechanism. The clamp has a first jaw and a second jaw to clamp on a body tissue at a desired location for a stapling operation. The stapling mechanism is controlled by a trigger handle or a switch assembly. The surgical apparatus has a controller for providing a delay between clamping and actuating of the firing mechanism of the stapling mechanism. The delay provides for a desired amount of time for tissue compression producing a more uniform staple formation. The surgical apparatus also has an indicator. The indicator provides feedback about the status of the stapling mechanism and also displays a time of tissue compression by the clamp.

Claims

1. A method for stapling tissue comprising:

positioning tissue between jaws of a surgical stapling device, one jaw including a staple cartridge containing a plurality of staples and an actuation sled supported within the cartridge for urging the plurality of staples from the cartridge, and one jaw including an anvil having a fastener forming surface thereon; and

firing the surgical stapling device, wherein the surgical stapling device includes a controller configured to delay movement of the actuation sled for a predetermined time period prior to urging staples from the staple cartridge, wherein during the predetermined time period the tissue is compressed between the jaws of the surgical stapling device.

2. The method of claim 1, further comprising clamping the tissue between the jaws of the surgical stapling device for a predetermined time interval prior to firing the surgical stapling device.

3. The method of claim 2, wherein firing the surgical stapling device further comprises tightening the jaws about the tissue for the predetermined time period prior to urging staples from the staple cartridge.

4. The method of claim 2, wherein clamping the tissue between the jaws of the surgical stapling device further comprises waiting for a signal from the controller prior to firing the surgical stapling device.

5. The method of claim 1, wherein the surgical stapling device further comprises an indicator and wherein the method further comprises monitoring the indicator for the elapsed predetermined time period of tissue compression and/or status of the stapling.

6. The method of claim 1, wherein the surgical stapling device further comprises a display for indicating the predetermined time period of tissue compression prior to urging staples from the staple cartridge, and wherein the method further comprises setting the predetermined time period of tissue compression on the display.

7. A method for stapling tissue comprising:

locating tissue between a staple cartridge and an anvil;

compressing tissue between the staple cartridge and the anvil;

manipulating an actuator to fire staples from the staples cartridge, wherein the actuator is configured to automatically delay firing staples for a predetermined time period and wherein the predetermined time period is suitable in length to allow compression of the tissue for the predetermined time period and to allow tissue to settle from a first initial state into a second compressed state; and

urging staples from the staple cartridge through the tissue at the elapse of the predetermined time period when the tissue is in the second compressed state.