Surgical instrument system comprising a firing system including a rotatable shaft and first and second actuation ramps

• US 10,052,099 B2
• Filed: 06/19/2014
• Issued: 08/21/2018
• Est. Priority Date: 01/31/2006
• Status: Active Grant

• Current Assignee: Cilag Gmbh International (Johnson & Johnson)
• Original Assignee: Ethicon, LLC (Johnson & Johnson)
• Inventors: Morgan, Jerome R., Shelton, IV, Frederick E.
• Primary Examiner(s): Tecco, Andrew M
• Application Number:
  US14/308,913
• Publication Number:
  US 20140296873A1
• Time in Patent Office: 1,524 Days
• 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 17/105 Wound clamp magazines for packaging sharps A61B50/3001
• CPC Class Codes: A61B 17/32 Surgical cutting instruments A61B18/042 takes precedence; suture cutters A61B17/0467; instruments for ligaturing or cutting A61B17/128; instruments for rupturing the amniotic membrane A61B17/4208; specially adapted knives for eye surgery A61F9/0133
• 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 2017/00017 Electrical control of surgical instruments
• CPC Class Codes: A61B 2017/00115 with audible or visual output with imaging means A61B90/37, A61B34/20
• CPC Class Codes: A61B 2017/00199 with a console, e.g. a control panel with a display
• CPC Class Codes: A61B 2017/00221 with wireless transmission of data, e.g. by infrared radiation or radiowaves
• CPC Class Codes: A61B 2017/00398 using powered actuators, e.g. stepper motors, solenoids
• CPC Class Codes: A61B 2017/00473 Distal part, e.g. tip or head A61B2017/00464 takes precedence
• CPC Class Codes: A61B 2017/00477 Coupling A61B2017/0046 takes precedence
• CPC Class Codes: A61B 2017/0053 Loading magazines or sutures into applying tools
• CPC Class Codes: A61B 2017/00685 Archimedes screw
• CPC Class Codes: A61B 2017/00734 battery operated
• CPC Class Codes: A61B 2017/0688 Packages or dispensers for surgical staplers
• CPC Class Codes: A61B 2017/07214 Stapler heads
• CPC Class Codes: A61B 2017/07257 characterised by its anvil
• CPC Class Codes: A61B 2017/07271 characterised by its cartridge
• CPC Class Codes: A61B 2017/07278 : characterised by its sled or its staple holder
• CPC Class Codes: A61B 2017/07285 : characterised by its cutter
• CPC Class Codes: A61B 2017/2903 : transferring rotary motion
• CPC Class Codes: A61B 2017/2923 : Toothed members, e.g. rack and pinion
• CPC Class Codes: A61B 2017/2927 : the angular position of the head being adjustable with respect to the shaft
• CPC Class Codes: A61B 2017/2929 : with a head rotatable about the longitudinal axis of the shaft
• CPC Class Codes: A61B 2017/2943 : Toothed members, e.g. rack and pinion
• CPC Class Codes: A61B 2018/00297 : Means for providing haptic feedback
• CPC Class Codes: A61B 2018/1455 : having a moving blade for cutting tissue grasped by the jaws
• CPC Class Codes: A61B 2034/2059 : Mechanical position encoders
• CPC Class Codes: A61B 2034/302 : specifically adapted for manipulations within body cavities, e.g. within abdominal or thoracic cavities
• CPC Class Codes: A61B 2034/303 : specifically adapted for manipulations within body lumens, e.g. within lumen of gut, spine, or blood vessels
• CPC Class Codes: A61B 2090/064 : for measuring force, pressure or mechanical tension
• CPC Class Codes: A61B 2090/065 : for measuring contact or contact pressure
• CPC Class Codes: A61B 2090/0803 : Counting the number of times an instrument is used
• CPC Class Codes: A61B 2090/0805 : automatically, e.g. by means of magnetic, optical or photoelectric detectors
• CPC Class Codes: A61B 2090/0807 : Indication means
• 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
• CPC Class Codes: A61B 2090/0814 : Preventing re-use
• CPC Class Codes: A61B 34/20 : Surgical navigation systems; Devices for tracking or guiding surgical instruments, e.g. for frameless stereotaxis
• CPC Class Codes: A61B 34/25 : User interfaces for surgical systems
• CPC Class Codes: A61B 34/30 : Surgical robots
• CPC Class Codes: A61B 34/37 : Master-slave robots A61B34/35 takes precedence
• CPC Class Codes: A61B 34/71 : Manipulators operated by drive cable mechanisms
• CPC Class Codes: A61B 34/73 : Manipulators for magnetic surgery
• CPC Class Codes: A61B 34/76 : Manipulators having means for providing feel, e.g. force or tactile feedback
• CPC Class Codes: A61B 50/36 : for collecting or disposing of used articles

Abstract

An assembly for use with a surgical instrument system is disclosed which comprises a cartridge body removably positionable in a channel. The system further comprises staple cavities and a longitudinal slot defined in the cartridge body, staples positioned in the staple cavities, and pushers configured to eject the staples from the staple cavities. The system further comprises rotary drivers couplable to the pushers. The system further comprises a rotatable shaft comprising a threaded portion rotatable by a motor and, in addition, a firing member comprising a threaded aperture engaged with the rotatable shaft which is configured to displace the firing member longitudinally when the shaft is rotated. The firing member comprises a first ramp positioned on a first side of the slot configured to actuate a first row of pushers and a second ramp configured to actuate a second row of pushers disposed laterally with respect to the first ramp.

Claims

1. An end effector for use with a surgical instrument system, said end effector comprising:

a cartridge channel;

a longitudinal axis;

a staple cartridge removably positioned in said cartridge channel, comprising;

a cartridge body comprising a plurality of staple cavities, wherein said staple cavities are arranged in six longitudinal rows;

a plurality of staples, wherein said staples are removably positioned in said staple cavities;

a plurality of pushers, wherein said pushers are configured to eject said staples from said staple cavities;

a plurality of rotary drivers couplable to said plurality of pushers; and

a longitudinal slot, wherein three of said six longitudinal rows of staple cavities are positioned on a first side of said longitudinal slot, and wherein the other three of said six longitudinal rows of staple cavities are positioned on a second side of said longitudinal slot;

a rotatable shaft comprising a threaded portion, wherein said rotatable shaft is rotatable by a motor; and

a translatable sled, comprising;

a threaded aperture threadably engaged with said threaded portion, wherein said shaft is configured to displace said sled longitudinally when said shaft is rotated;

a knife aligned with said longitudinal slot;

a first ramp positioned on said first side of said longitudinal slot, wherein said first ramp is configured to actuate a first group of said rotary drivers; and

a second ramp configured to actuate a second group of said rotary drivers, wherein said second ramp is aligned laterally with said first ramp.

2. The end effector of claim 1, further comprising said motor.

3. The end effector of claim 1, further comprising:

a housing, wherein said motor is positioned in said housing; and

an elongate shaft extending from said housing, wherein said elongate shaft comprises;

a proximal end;

a distal end; and

an articulation joint, wherein said staple cartridge is rotatable about said articulation joint, wherein said threaded portion extends distally with respect to said articulation joint, and wherein the rotational motion of said rotatable shaft is converted to translational motion of said sled distally with respect to said articulation joint.

4. The end effector of claim 1, wherein at least one of said rotary drivers comprises an arcuate ramp portion.

5. The end effector of claim 1, wherein at least one of said rotary drivers is rotatably supported within said cartridge body.

6. The end effector of claim 1, wherein said first group of said rotary drivers are positioned on said first side of said longitudinal slot, and wherein said second group of said rotary drivers are positioned on said second side of said longitudinal slot.

7. An assembly for use with a surgical instrument system, said assembly comprising:

a cartridge channel;

a longitudinal axis;

a cartridge body removably positionable in said cartridge channel, wherein said cartridge body comprises a plurality of staple cavities, and wherein said staple cavities are arranged in an array consisting of six longitudinal rows;

a plurality of staples, wherein said staples are removably positioned in said staple cavities;

a plurality of pushers, wherein said pushers are configured to eject said staples from said staple cavities, and wherein said pushers are arranged in longitudinal rows;

a plurality of rotary drivers couplable to said plurality of pushers;

a longitudinal slot, wherein three of said six longitudinal rows of staple cavities are positioned on a first side of said longitudinal slot, and wherein the other three of said six longitudinal rows of staple cavities are positioned on a second side of said longitudinal slot;

a rotatable shaft comprising a threaded portion, wherein said rotatable shaft is rotatable by a motor; and

a firing member, comprising;

a threaded aperture threadably engaged with said threaded portion, wherein said shaft is configured to displace said firing member longitudinally when said shaft is rotated;

a knife aligned with said longitudinal slot;

a first ramp positioned on said first side of said longitudinal slot, wherein said first ramp is configured to actuate a first row of said rotary drivers; and

a second ramp configured to actuate a second row of said rotary drivers, wherein said second ramp is disposed laterally with respect to said first ramp.

8. The assembly of claim 7, further comprising said motor.

9. The assembly of claim 7, further comprising:

a housing, wherein said motor is positioned in said housing; and

an elongate shaft extending from said housing, wherein said elongate shaft comprises;

a proximal end;

a distal end; and

an articulation joint, wherein said cartridge channel is rotatable about said articulation joint, wherein said threaded portion extends distally with respect to said articulation joint, and wherein the rotational motion of said rotatable shaft is converted to translational motion of said firing member distally with respect to said articulation joint.

10. A surgical instrument system, comprising:

a cartridge channel;

a cartridge body removably positionable in said cartridge channel, wherein said cartridge body comprises a plurality of staple cavities, and wherein said staple cavities are arranged in an array consisting of six longitudinal rows;

a plurality of staples, wherein said staples are removably positioned in said staple cavities;

a plurality of pushers, wherein said drivers are configured to eject said staples from said staple cavities, and wherein said pushers are arranged in longitudinal rows;

a plurality of rotary drivers couplable to said plurality of pushers;

a longitudinal knife slot, wherein three of said six longitudinal rows of staple cavities are positioned on a first side of said longitudinal knife slot, and wherein the other three of said six longitudinal rows of staple cavities are positioned on a second side of said longitudinal knife slot;

a housing;

an electric motor positioned within said housing;

a rotatable shaft comprising a threaded portion, wherein said rotatable shaft is rotatable by said electric motor; and

a firing member, comprising;

a threaded aperture threadably engaged with said threaded portion, wherein said shaft is configured to displace said firing member longitudinally when said shaft is rotated;

a knife configured to travel through said longitudinal knife slot;

a first ramp positioned on said first side of said longitudinal knife slot, wherein said first ramp is configured to actuate a first longitudinal row of said rotary drivers; and

a second ramp configured to actuate a second longitudinal row of said rotary drivers, wherein said second ramp is aligned with said first ramp.

11. The surgical instrument system of claim 10, further comprising an elongate shaft extending from said housing, wherein said elongate shaft comprises:

a proximal end;

a distal end; and

an articulation joint, wherein said cartridge channel is rotatable about said articulation joint, wherein said threaded portion extends distally with respect to said articulation joint, and wherein the rotational motion of said rotatable shaft is converted to translational motion of said firing member distally with respect to said articulation joint.