DELIVERABLE SURGICAL INSTRUMENT

• US 20150223809A1
• Filed: 02/12/2014
• Published: 08/13/2015
• Est. Priority Date: 02/12/2014
• Status: Active Grant

• Current Assignee: Cilag Gmbh International (Johnson & Johnson)
• Original Assignee: Ethicon Endo-Surgery, Inc. (Johnson & Johnson)
• Inventors: Scheib, Charles J., Fox, William D.
• Granted Patent: US 9,962,161 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• 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 17/07292 Reinforcements for staple line, e.g. pledgets
• CPC Class Codes: A61B 2017/00336 with a protective sleeve, e.g. retractable or slidable
• CPC Class Codes: A61B 2017/0046 with a releasable handle; with handle and operating part separable for prosthetic joint-implanting tools A61F2/4603
• CPC Class Codes: A61B 2017/07242 achieving different staple heights during the same shot, e.g. using an anvil anvil having different heights or staples of different sizes
• CPC Class Codes: A61B 2017/07257 characterised by its anvil
• CPC Class Codes: A61B 2017/07271 characterised by its cartridge
• CPC Class Codes: A61B 2017/07285 characterised by its cutter
• CPC Class Codes: A61B 2017/2933 camming or guiding means
• CPC Class Codes: A61B 2090/037 with a frangible part, e.g. by reduced diameter
• CPC Class Codes: A61B 2090/0807 Indication means

Abstract

In various embodiments, a shaftless end effector is disclosed. The end effector can comprise an anvil assembly including a staple forming surface. The end effector can also comprise a staple cartridge channel configured to receive a staple cartridge therein. The end effector can include a closure system configured to close the anvil. In various instances, the closure system can also form the staples contained within the staple cartridge. The end effector can also include a cutting member configured to cut tissue positioned intermediate the anvil and the staple cartridge. In various instances, the cutting member can be actuated by the closure system. In other instances, the end effector can include an independent system for actuating the cutting member. In various instances, the end effector can be delivered to a surgical site through a trocar and then operated by one or more actuators that are assembled to the end effector.

Claims

1. A shaftless end effector, comprising:

an anvil assembly, comprising;

an anvil frame comprising a staple cartridge channel configured to receive a staple cartridge therein; and

an anvil, comprising;

a pivot end rotatably coupled to said anvil frame;

a movable second end; and

a staple forming surface;

a closure system configured to engage said second end of said anvil; and

a drive system including an input connector, wherein said drive system is configured to operate said closure system and transition said anvil from an open position to a closed position, and wherein an actuator can be coupled to said drive system after said end effector is inserted to a treatment location.

2. The shaftless end effector of claim 1, wherein said closure system comprises a proximal end slide configured to slideably interface with a proximal end of said anvil frame to transition said anvil from said open position to said closed position.

3. The shaftless end effector of claim 2, wherein said closure system comprises a distal end slide configured to slideably interface with a distal end of said anvil frame to transition said anvil from said open position to said closed position.

4. The shaftless end effector of claim 3, further comprising:

a proximal shaft slideably coupled to said proximal end of said anvil frame, wherein said proximal end slide is coupled to said proximal shaft;

a distal shaft slideably coupled to said distal end of said anvil frame, wherein said distal end slide is coupled to said distal shaft, and wherein said closure system is configured to slide said proximal end slide and said distal end slide toward each other to transition said anvil from said open position to said closed position.

5. The shaftless end effector of claim 4, wherein said proximal end slide and said distal end slide are configured to interface with a grasper, and wherein said actuator comprises a grasper.

6. The shaftless end effector of claim 3, further comprising a rotatable shaft coupled to said proximal end slide and said distal end slide, wherein rotation of said rotatable shaft in a first direction moves said proximal end slide and said distal end slide towards a center of said anvil frame, and wherein rotation of said rotatable shaft in an opposite direction moves said proximal end slide and said distal end slide away from said center of said anvil frame.

7. The shaftless end effector of claim 1, further comprising a cutting instrument, wherein said cutting instrument is configured to cut a tissue section located between said anvil and said staple cartridge channel when said anvil is transitioned into said closed position.

8. The shaftless end effector of claim 1, further comprising:

a rotatable shaft located within said anvil frame;

a cutting instrument operably engaged with said rotatable shaft, wherein the rotation of said rotatable shaft is configured to move said cutting instrument between said pivot end and said second end of said anvil.

9. The shaftless end effector of claim 8, wherein said cutting instrument comprises an I-beam, and wherein said I-beam is configured to deploy a plurality of staples stored in said staple cartridge when said I-beam is advanced distally within said anvil frame.

10. The shaftless end effector of claim 1, further comprising a plurality of notches corresponding to a plurality of heights of said anvil, wherein said plurality of notches are configured to provide an indication of a current height of said anvil with respect to said anvil frame.

11. The shaftless end effector of claim 1, wherein said shaftless closure system comprises a rotatable collar rotatably coupled to a proximal end of said anvil assembly, and wherein said rotatable collar is configured to threadably engage said anvil assembly in order to move said anvil assembly into said closed position.

12. An end effector, comprising:

a frame comprising a first end and a second end;

an anvil comprising a staple forming surface, wherein said anvil is moveably coupled to said frame between an open position and a closed position;

a staple cartridge, comprising;

a cartridge body comprising a plurality of staple cavities; and

a plurality of staples removably positioned within said staple cavities;

a first cam movable relative to said first end; and

a second cam movable relative to said second end, wherein the movement of said first cam relative to said first end and said second cam relative to said second end transitions said anvil between said open position and said closed position.

13. The end effector of claim 12, wherein said anvil comprises a first bevel and a second bevel, wherein said first cam comprises a first ramp, wherein said second cam comprises a second ramp, and wherein said first ramp is configured to interface with said first bevel and said second ramp is configured to interface with said second bevel to close said anvil in a parallel motion.

14. The end effector of claim 13, further comprising a rotatable shaft rotatably supported by said frame, wherein said rotatable shaft is operably engaged with said first cam and said second cam, and wherein the rotation of said rotatable shaft causes said first cam and said second cam to move toward each other and transition said anvil between said open position and said closed position.

15. The end effector of claim 14, further comprising a cutting instrument coupled to said rotatable shaft, wherein the rotation of said rotatable shaft advances said cutting instrument from said first end toward said second end of said frame.

16. The end effector of claim 12, wherein said first cam comprises a first pushing surface, wherein said second cam comprises a second pushing surface, and wherein said first pushing surface and said second pushing surface are configured to interface with a grasper.

17. The end effector of claim 12, further comprising a cutting instrument, wherein said cutting instrument is configured to cut a tissue section located between said anvil and said staple cartridge channel when said anvil is transitioned into a closed position.

18. The end effector of claim 12, further comprising a cutting instrument, wherein said cutting instrument is configured to cut a tissue section located between said anvil and said staple cartridge channel after said anvil is transitioned into a closed position.

19. The end effector of claim 12, wherein said first cam and said second cam each comprise a tunable closure, wherein each said tunable closure comprises a plurality of calibration indentations configured to indicate an amount of closure of said anvil, and wherein said first cam and said second cam are independently moveable to adjust said amount of closure.

20. A surgical system, comprising:

a first jaw comprising an anvil;

a second jaw comprising a compressible fastener cartridge, wherein said compressible fastener cartridge comprises a plurality of fasteners removably stored therein;

a closure system comprising a first drive input, wherein said closure system moves at least one of said first jaw and said second jaw into a closed position to capture tissue between said first jaw and said second jaw and engage said fasteners with the tissue, and wherein said first drive input is operably engageable with a first actuator; and

a cutting system comprising a second drive input, wherein said cutting system is configured to incise the tissue, wherein said second drive input is operably engageable with a second actuator, and wherein said cutting system is operable independently of said closure system.