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| 국가/구분 | United States(US) Patent 등록 |
|---|---|
| 국제특허분류(IPC7판) |
|
| 출원번호 | US-0446283 (2006-06-02) |
| 등록번호 | US-7461767 (2008-12-09) |
| 발명자 / 주소 |
|
| 출원인 / 주소 |
|
| 인용정보 | 피인용 횟수 : 627 인용 특허 : 110 |
A surgical stapler has a handle assembly including a stationary handle and a trigger. The stapler also has a drive assembly with a body having a working end and a cam member supported on the working end. The cam member is positioned to translate relative to the anvil to maintain the anvil in the clo
A surgical stapler has a handle assembly including a stationary handle and a trigger. The stapler also has a drive assembly with a body having a working end and a cam member supported on the working end. The cam member is positioned to translate relative to the anvil to maintain the anvil in the closed position during firing of the stapler. The trigger is operatively connected to a power cell. The power cell is operably connected to a motor of the drive assembly. The manipulation of the trigger actuates the power cell such that the power cell powers the drive assembly to effect translation of the cam member relative to the anvil. The stapler also has a channel for supporting the staple cartridge and the motor of the drive assembly controls the actuation sled supported within the cartridge. The actuation sled urges the plurality of staples from the cartridge when the anvil is in the closed position and in cooperative alignment with the staple cartridge.
What is claimed is: 1. A surgical stapler comprising: a handle assembly including a trigger; a clamping device having a staple cartridge containing a plurality of staples and an anvil having a fastener forming surface thereon; a controller configured to determine an occurrence of clamping by the an
What is claimed is: 1. A surgical stapler comprising: a handle assembly including a trigger; a clamping device having a staple cartridge containing a plurality of staples and an anvil having a fastener forming surface thereon; a controller configured to determine an occurrence of clamping by the anvil and the staple cartridge, the controller controlling firing of the plurality of staples from the staple cartridge; wherein when the trigger is actuated the controller delays firing of the plurality of staples from the staple cartridge to provide for a predetermined time period of tissue compression between the anvil and the staple cartridge and wherein the controller outputs a control signal to allow firing once the predetermined time period is reached; and a motor having a drive assembly, wherein the motor is operably associated with the handle assembly and configured to receive the control signal from the controller, the motor being operatively connected to the staple cartridge to fire the staples from the staple cartridge once the control signal is received. 2. The surgical stapler of claim 1, wherein the motor is connected to a power cell selected from the group consisting of an alkaline battery, a nickel cadmium battery, a lithium battery a nickel metal hydride battery, and any combination thereof. 3. The surgical stapler of claim 2 wherein at least one of the motor and the power cell are located in a protective housing. 4. The surgical stapler of claim 1 wherein the anvil is pivotally mounted in relation to the cartridge adjacent a distal end of an elongated body, the anvil being mounted for pivotal movement in relation to the cartridge between an open position having a distal end spaced from the staple cartridge and a closed position in close cooperative alignment with the staple cartridge. 5. The surgical stapler of claim 1 further comprising an actuation sled, the actuation sled being movable to urge the plurality of staples from the cartridge. 6. The surgical stapler of claim 1 wherein the drive assembly further includes a body having a working end and a cam member supported on the working end, the cam member being positioned to translate relative to the anvil to maintain the anvil in the closed position during firing of the stapler. 7. The surgical stapler of claim 1 wherein the drive assembly of the motor comprises a first gear and a second gear, wherein upon actuation the motor drives the controller to spin the first gear, the first gear being in contact with the second gear, the second gear being operatively connected to an actuation sled, such that the first gear rotates the second gear, the second gear moving the actuation sled distally to urge the plurality of staples from the cartridge. 8. The surgical stapler of claim 7 wherein the second gear and the actuation sled are coupled by a drive screw. 9. The surgical stapler of claim 7, wherein the motor automatically rotates the first gear in an opposite direction after the plurality of staples is urged from the staple cartridge. 10. The surgical stapler of claim 1 wherein actuation of the controller operates the motor and rotates a first gear, the first gear operably coupled to an actuation sled, such that rotation of the first gear causes distal translation of the actuation sled and urges the plurality of staples from the cartridge. 11. The surgical stapler of claim 10, wherein the motor is reversible and rotates the first gear in an opposite direction and causes proximal translation of the actuation sled.
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