MODULAR POWERED SURGICAL INSTRUMENT WITH DETACHABLE SHAFT ASSEMBLIES

• US 20150272579A1
• Filed: 03/26/2014
• Published: 10/01/2015
• Est. Priority Date: 03/26/2014
• Status: Active Grant

• Current Assignee: Cilag Gmbh International (Johnson & Johnson)
• Original Assignee: Ethicon Endo-Surgery, Inc. (Johnson & Johnson)
• Inventors: Leimbach, Richard L., Overmyer, Mark D., Adams, Shane R.
• Granted Patent: US 9,743,929 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• 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 17/0686 having a forming anvil staying below the tissue during stapling
• CPC Class Codes: A61B 17/07207 the staples being applied sequentially
• CPC Class Codes: A61B 17/320016 Endoscopic cutting instruments, e.g. arthroscopes, resectoscopes A61B10/0233, A61B17/29, A61B17/3207 take precedence
• 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 2017/00039 Electric or electromagnetic phenomena other than conductivity, e.g. capacity, inductivity, Hall effect
• CPC Class Codes: A61B 2017/00084 Temperature
• CPC Class Codes: A61B 2017/00115 with audible or visual output
• CPC Class Codes: A61B 2017/00119 alarm; indicating an abnormal situation
• CPC Class Codes: A61B 2017/00123 and automatic shutdown
• CPC Class Codes: A61B 2017/00137 Details of operation mode
• CPC Class Codes: A61B 2017/00199 with a console, e.g. a control panel with a display
• CPC Class Codes: A61B 2017/00212 using remote controls
• CPC Class Codes: A61B 2017/00221 with wireless transmission of data, e.g. by infrared radiation or radiowaves
• CPC Class Codes: A61B 2017/00225 Systems for controlling multiple different instruments, e.g. microsurgical systems
• CPC Class Codes: A61B 2017/00367 Details of actuation of instruments, e.g. relations between pushing buttons, or the like, and activation of the tool, working tip, or the like
• CPC Class Codes: A61B 2017/00398 using powered actuators, e.g. stepper motors, solenoids
• CPC Class Codes: A61B 2017/00407 Ratchet means
• CPC Class Codes: A61B 2017/0046 with a releasable handle; with handle and operating part separable
• CPC Class Codes: A61B 2017/00464 : for use with different instruments
• CPC Class Codes: A61B 2017/00477 : Coupling A61B2017/0046 takes precedence
• CPC Class Codes: A61B 2017/00725 : Calibration or performance testing
• CPC Class Codes: A61B 2017/00734 : battery operated
• 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 2017/2912 : transmission of forces to actuating rod or piston
• 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 2034/302 : specifically adapted for manipulations within body cavities, e.g. within abdominal or thoracic cavities
• 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 2090/0807 : Indication means
• CPC Class Codes: A61B 2090/0808 : for indicating correct assembly of components, e.g. of the surgical apparatus
• CPC Class Codes: A61B 2090/081 : for contamination or dirt
• 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 2090/0813 : Accessories designed for easy sterilising, i.e. re-usable
• CPC Class Codes: A61B 2090/0814 : Preventing re-use
• CPC Class Codes: A61B 34/76 : Manipulators having means for providing feel, e.g. force or tactile feedback
• CPC Class Codes: A61B 90/06 : Measuring instruments not otherwise provided for
• CPC Class Codes: A61B 90/90 : Identification means for patients or instruments, e.g. tags
• CPC Class Codes: A61B 90/98 : using electromagnetic means, e.g. transponders
• CPC Class Codes: A61L 2/07 : Steam
• CPC Class Codes: A61L 2/081 : Gamma radiation
• CPC Class Codes: A61L 2/082 : X-rays
• CPC Class Codes: A61L 2/087 : Particle radiation, e.g. electron-beam, alpha or beta radiation
• CPC Class Codes: A61L 2/16 : using chemical substances
• CPC Class Codes: A61L 2/206 : Ethylene oxide
• CPC Class Codes: A61L 2/26 : Accessories or devices or components used for biocidal treatment
• CPC Class Codes: A61L 2202/14 : Means for controlling sterilisation processes, data processing, presentation and storage means, e.g. sensors, controllers, programs
• CPC Class Codes: A61L 2202/24 : Medical instruments, e.g. endoscopes, catheters, sharps
• CPC Class Codes: B25F 3/00 : Associations of tools for different working operations with one portable power-drive means; Adapters therefor
• CPC Class Codes: B25F 5/00 : Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
• CPC Class Codes: H01M 10/425 : Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing printed circuits H05K1/00
• CPC Class Codes: H01M 10/48 : Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals, H01M50/569
• CPC Class Codes: H01M 2010/4278 : Systems for data transfer from batteries, e.g. transfer of battery parameters to a controller, data transferred between battery controller and main controller
• CPC Class Codes: H01M 2220/30 : Batteries in portable systems, e.g. mobile phone, laptop
• CPC Class Codes: H01M 50/213 : adapted for cells having curved cross-section, e.g. round or elliptic H01M50/209, H01M50/216 take precedence
• CPC Class Codes: H01R 2201/12 : for medicine and surgery
• CPC Class Codes: H01R 35/025 : having a flexible conductor wound around a rotation axis
• CPC Class Codes: H01R 39/08 : Slip-rings
• CPC Class Codes: H01R 39/10 : other than with external cylindrical contact surface, e.g. flat slip-rings
• CPC Class Codes: H01R 39/64 : Devices for uninterrupted current collection
• CPC Class Codes: H02J 2310/23 : The load being a medical device, a medical implant, or a life supporting device
• CPC Class Codes: H02J 5/00 : Circuit arrangements for transfer of electric power between ac networks and dc networks H02J3/36 takes precedence
• CPC Class Codes: H02J 7/0048 : Detection of remaining charge capacity or state of charge [SOC]
• CPC Class Codes: H02J 7/007188 : the charge cycle being controlled or terminated in response to non-electric parameters
• CPC Class Codes: H02J 7/007192 : in response to temperature
• CPC Class Codes: H02J 7/02 : for charging batteries from ac mains by converters

Abstract

An interchangeable shaft assembly for a surgical instrument that includes first and second drive systems. The interchangeable shaft assembly is configured for removable attachment to a housing of the surgical instrument. Various embodiments include a latch system that enables the interchangeable shaft assembly to be detached from the housing when the first drive system is unactuated but prevents the interchangeable shaft assembly from being detached from the housing when the first drive system is in an actuated position.

Claims

1. A surgical instrument, comprising:

a housing;

an interchangeable shaft assembly removably couplable to the housing, the interchangeable shaft assembly including an end effector comprising;

a first end effector portion operably responsive to first drive motions applied thereto; and

a second end effector portion operably responsive to second drive motions applied thereto and wherein the surgical instrument further comprises;

a first drive system operably supported by the housing, the first drive system movable from a first unactuated position to a second actuated position, the first drive system being configured to apply the first drive motions to the interchangeable shaft assembly operably coupled to the housing when the first drive system is in the second actuated position;

a second drive system operably supported by the housing, the second drive system movable from an unfired position to a fired position, the second drive system being configured to apply the second drive motions to the interchangeable shaft assembly when the second drive system is in the fired position; and

a latch system for removably coupling the interchangeable shaft assembly to the housing such that when the first drive system is in the first unactuated position, the interchangeable shaft assembly is detachable from the housing and when the first drive system is in the second actuated position, the latch system prevents the interchangeable shaft assembly from being detached from the housing.

2. The surgical instrument of claim 1, wherein the interchangeable shaft assembly further comprises a chassis member configured for removable engagement with the housing and wherein the latch system comprises a lock member selectively movable between a locked position and an unlocked position such that when in the locked position, the lock member retainingly couples the chassis member to the housing and when the lock member is in the unlocked position, the chassis may be detached from the housing.

3. The surgical instrument of claim 2 wherein the interchangeable shaft assembly further comprises:

a first shaft assembly configured to operably transmit the first drive motions to the first end effector portion; and

a first shaft yoke operably supporting the first shaft assembly and configured for releasable engagement to a corresponding portion of the first drive system, said first shaft yoke configured to prevent the lock member from being movable to the unlocked position when the first drive system is in the second actuated position.

4. The surgical instrument of claim 3 wherein the end effector comprises a channel configured to operably support a surgical staple cartridge therein and wherein the first portion comprises an anvil movably supported relative to the channel, the anvil being movable between open and closed positions relative to the channel in response to the first drive motions applied thereto.

5. The surgical instrument of claim 4 wherein the first drive system comprises a closure link supported for axial movement within the housing in response to actuation motions applied thereto, the closure link configured for removable engagement with the first shaft yoke.

6. The surgical instrument of claim 5 wherein the first drive system further comprises a closure trigger movably supported by the housing for selective travel between an unactuated trigger position and an actuated trigger position, the closure trigger operably coupled to the closure link.

7. The surgical instrument of claim 2 wherein the housing defines a longitudinal shaft axis and wherein the chassis is engageable with the housing along an installation axis that is perpendicular to the longitudinal shaft axis.

8. The surgical instrument of claim 7 wherein the chassis includes at least one tapered attachment portion configured to be slidably received in a corresponding dovetail slot in the housing.

9. The surgical instrument of claim 1 wherein the housing comprises a handle.

10. The surgical instrument of claim 4 wherein the second end effector portion comprises a knife bar supported for axial travel within the surgical staple cartridge supported in the channel.

11. A surgical cutting and fastening instrument comprising:

a housing;

an interchangeable shaft assembly removably couplable to the housing, the interchangeable shaft assembly including an end effector comprising;

a channel configured to operably support a surgical staple cartridge therein;

an anvil movably supported relative to the channel and being movable between open and closed positions relative to the channel; and

a knife bar supported for axial travel within a surgical staple cartridge supported in the channel in response to firing motions applied thereto and wherein the surgical instrument further comprises;

a closure system operably supported by the housing, the closure system movable from a first unactuated position to a second actuated position, the closure system being configured to apply first closure motions to the anvil through the interchangeable shaft assembly when the closure system is in the first actuated position;

a motor-driven firing system operably supported by the housing, the motor-driven firing system movable from an unfired position to a fired position, the motor-driven firing system being configured to apply the firing motions to the knife bar through the interchangeable shaft assembly when the motor-driven firing system is in the fired position; and

a latch system for removably coupling the interchangeable shaft assembly to the housing such that when the closure system is in the first unactuated position, the interchangeable shaft assembly is detachable from the housing and when the closure system is in the second actuated position and the anvil is closed, the latch system prevents the interchangeable shaft assembly from being detached from the housing.

12. The surgical cutting and fastening instrument of claim 11, wherein the interchangeable shaft assembly further comprises a chassis member configured for removable engagement with the housing and wherein the latch system comprises a lock member selectively movable between a locked position and an unlocked position such that when in the locked position, the lock member retainingly couples the chassis member to the housing and when the lock member is in the unlocked position, the chassis may be detached from the housing.

13. The surgical cutting and fastening instrument of claim 12 wherein the interchangeable shaft assembly further comprises:

a closure tube including a distal end portion configured to apply the closure motions to the anvil; and

a closure shuttle movably supported by the chassis and operably supporting a proximal end of the closure tube, the closure shuttle configured for releasable engagement to a corresponding portion of the closure system, the closure shuttle configured to prevent the lock member from being movable to the unlocked position when the closure system is in the second actuated position.

14. The surgical cutting and fastening instrument of claim 11 wherein the closure system further comprises a closure trigger movably supported by the housing for selective travel between an unactuated trigger position and an actuated trigger position and wherein the corresponding portion of the closure system comprises a closure link operably coupled to the closure trigger.

15. The surgical cutting and fastening instrument of claim 12 wherein the chassis includes at least one tapered attachment portion configured to be slidably received in a corresponding dovetail slot in the housing.

16. The surgical cutting and fastening instrument of claim 11 wherein the housing comprises a handle.

17. The surgical cutting and fastening instrument of claim 12 wherein the housing defines a longitudinal shaft axis and wherein the chassis is removably engageable with the housing along an installation axis that is perpendicular to the longitudinal shaft axis.

18. The surgical cutting and fastening instrument of claim 11 wherein the motor driven firing system is unactuatable when the closure system is in the first unactuated position.

19. A surgical instrument, comprising:

a housing;

an interchangeable shaft assembly removably couplable to the housing, the interchangeable shaft assembly including an end effector comprising;

a first end effector portion operably responsive to first drive motions applied thereto; and

a second end effector portion operably responsive to second drive motions applied thereto and wherein the surgical instrument further comprises;

a first drive system operably supported by the housing, the first drive system movable from a first unactuated position to a second actuated position, the first drive system being configured to apply the first drive motions to the interchangeable shaft assembly operably coupled to the housing when the first drive system is in the second actuated position;

a second motor-driven system operably supported by the housing, the second motor-driven system movable from an unfired position to a fired position, the second motor-driven system being configured to apply the second drive motions to the interchangeable shaft assembly when the second motor-driven system is in the fired position; and

means for removably coupling the interchangeable shaft assembly to the housing such that when the first drive system is in the first unactuated position, the interchangeable shaft assembly is detachable from the housing and when the first drive system is in the second actuated position, the means for removably coupling prevents the interchangeable shaft assembly from being detached from the housing.

20. The surgical instrument of claim 19 wherein the housing comprises a handle.