Cordless hand-held ultrasonic cautery cutting device and method

• US 8,425,545 B2
• Filed: 08/26/2009
• Issued: 04/23/2013
• Est. Priority Date: 12/03/2007
• Status: Active Grant

• Current Assignee: Covidien AG (Medtronic Plc)
• Original Assignee: Covidien AG (Medtronic Plc)
• Inventors: Smith, Kevin W., Bales, Thomas O., Palmer, Matthew A., Deville, Derek Dee
• Primary Examiner(s): Hughes, S. Thomas
• Assistant Examiner(s): SHI, KATHERINE MENGLIN
• Application Number:
  US12/547,999
• Publication Number:
  US 20100004669A1
• Time in Patent Office: 1,336 Days
• Field of Search: 606/169, 606/32, 606/34, 606/39, 600/437, 600/461, 600/471, 601/2, 604/22, 433/86, 433/119
• US Class Current: 606/169
• CPC Class Codes: A61B 17/320092 with additional movable means for clamping or cutting tissue, e.g. with a pivoting jaw
• CPC Class Codes: A61B 2017/0023 disposable
• CPC Class Codes: A61B 2017/00424 ergonomic, e.g. fitting in fist
• 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 2017/00734 battery operated
• CPC Class Codes: A61B 2017/320069 for ablating tissue
• CPC Class Codes: A61B 2017/320071 with articulating means for working tip
• CPC Class Codes: A61B 2017/320089 node location
• CPC Class Codes: A61B 2017/320093 additional movable means performing cutting operation
• CPC Class Codes: A61B 2017/320094 additional movable means performing clamping operation
• CPC Class Codes: A61B 2017/320095 with sealing or cauterizing means
• CPC Class Codes: A61B 2017/320097 with stapling means

Abstract

A disposable ultrasonic surgical handle connectable to an ultrasonic transducer, an ultrasonic waveguide, a battery, and an ultrasonic-signal-generator assembly, includes a handle body having a power supply portion defining a battery-holding compartment, the battery-holding compartment having at least two battery contacts, a waveguide attachment dock exposed to the environment and shaped to accept the waveguide therein, an ultrasonic-signal-generator assembly dock exposed to the environment and shaped to selectively removably secure the ultrasonic-signal-generator assembly to the handle body and electrically couple the ultrasonic-signal-generator assembly to the battery contacts, and a transducer attachment dock exposed to the environment and shaped to substantially simultaneously place the ultrasonic transducer in coaxial alignment with the waveguide when the waveguide is disposed within the waveguide attachment dock and electrically couple the ultrasonic transducer to the ultrasonic-signal-generator assembly when the ultrasonic-signal-generator assembly is secured to the ultrasonic-signal-generator assembly dock. The battery can be removable.

Claims

1. An ultrasonic surgical handle assembly connectable to a cordless ultrasonic transducer, an ultrasonic waveguide, a battery, and a cordless ultrasonic-signal-generator assembly, the handle comprising:

a removable shell containing therein a driving-wave generation circuit; and

a handle body having;

a power supply portion defining a battery-holding compartment and having at least two battery contacts at the battery-holding compartment;

an ultrasonic-signal-generator assembly dock exposed to the environment and shaped to selectively removably secure the shell directly to the handle body and electrically couple the driving-wave generation circuit to the at least two battery contacts; and

a transducer attachment dock exposed to the environment and shaped to substantially simultaneously;

place the ultrasonic transducer in coaxial alignment with the ultrasonic waveguide; and

electrically couple the ultrasonic transducer to the driving-wave generation circuit when the shell is secured to the ultrasonic-signal-generator assembly dock, wherein the driving-wave generation circuit is operable to dynamically produce a resonant wave along the waveguide by exciting the ultrasonic transducer when the transducer is coupled to the waveguide.

2. The ultrasonic surgical handle assembly according to claim 1, wherein:

the battery is a removable battery; and

the battery-holding compartment comprises a selectively accessible and aseptically sealable compartment shaped to receive the battery therein.

3. The ultrasonic surgical handle assembly according to claim 1, wherein the handle body further comprises:

an upper handle portion; and

a lower grip portion defining therein the battery-holding compartment.

4. The ultrasonic surgical handle assembly according to claim 1, wherein:

the battery is a removable battery; and

the battery-holding compartment further comprises a battery ejector operable to cause at least a portion of the removable battery to eject from the battery-holding compartment.

5. The ultrasonic surgical handle assembly according to claim 1, wherein:

the battery is a removable battery; and

further comprising a compartment door movably attached to the handle body at the battery-holding compartment and having;

an open position permitting entry and removal of the removable battery respectively into and from the battery-holding compartment; and

a closed position aseptically sealing the battery-holding compartment from the environment.

6. The ultrasonic surgical handle assembly according to claim 1, wherein the ultrasonic-signal-generator assembly dock is one of a rail, a dovetail, a T-slot, and an undercut slot.

7. The ultrasonic surgical handle assembly according to claim 1, further comprising:

a memory capable of storing a handle use history.

8. The ultrasonic surgical handle assembly according to claim 1, further comprising:

a device identifier communicatively coupled to the handle body and operable to communicate at least one piece of information about the handle body.

9. The ultrasonic surgical handle assembly according to claim 8, wherein the at least one piece of information is at least one of a handle identifier, an information list of previous use, a waveguide identifier, and a transducer identifier.

10. The ultrasonic surgical handle assembly according to claim 8, further comprising a removable battery assembly including a removable battery, the device identifier operable to communicate with the removable battery assembly and transfer information therebetween.

11. The ultrasonic surgical handle assembly according to claim 1, wherein the handle body further comprises a waveguide attachment dock shaped:

to rotatably connect the ultrasonic waveguide to the ultrasonic transducer when the ultrasonic waveguide is in the waveguide attachment dock and when the ultrasonic transducer is in the transducer attachment dock; and

to allow the ultrasonic transducer and the ultrasonic waveguide to correspondingly rotate with respect to the handle body and the ultrasonic-signal-generator assembly.

12. The ultrasonic surgical handle assembly according to claim 11, further comprising:

the ultrasonic waveguide;

the ultrasonic transducer;

the ultrasonic-signal-generator assembly having the driving-wave generation circuit; and

when the ultrasonic waveguide is in the waveguide attachment dock and the ultrasonic transducer is in the transducer attachment dock, the ultrasonic waveguide is connected to the ultrasonic transducer and, together, the ultrasonic transducer and the ultrasonic waveguide correspondingly rotate with respect to the handle body and to the ultrasonic-signal-generator assembly.

13. The ultrasonic surgical handle assembly according to claim 12, wherein:

the ultrasonic transducer has an output couple;

the ultrasonic-signal-generator assembly generates an output waveform; and

the transducer attachment dock is shaped to connect the output couple to the ultrasonic waveguide in the waveguide attachment dock and produce the resonant wave along the ultrasonic waveguide with the output waveform when attached thereto.

14. The ultrasonic surgical handle assembly according to claim 12, wherein the driving-wave generation circuit of the ultrasonic-signal-generator assembly comprises at least one of:

a control circuit;

a drive circuit; and

a matching circuit.

15. The ultrasonic surgical handle assembly according to claim 12, wherein the ultrasonic-signal-generator assembly is aseptically sealed.

16. The ultrasonic surgical handle assembly according to claim 15, further comprising:

a removable battery; and

the ultrasonic-signal-generator assembly comprises;

power contacts electrically coupling the ultrasonic-signal-generator assembly to the removable battery; and

output contacts supplying an ultrasonic driving wave to the ultrasonic transducer.

17. The ultrasonic surgical handle assembly according to claim 12, further comprising a removable battery comprising a plurality of Lithium-Ion cells electrically connected together in series.

18. The ultrasonic surgical handle assembly according to claim 12, wherein:

the ultrasonic waveguide has one of a set of different waveguide types;

the ultrasonic-signal-generator assembly generates a driving-wave frequency and a driving-wave power; and

the ultrasonic-signal-generator assembly is operable to vary at least one of the driving-wave frequency and the driving-wave power based on an identified one of the waveguide types.

19. The ultrasonic surgical handle assembly according to claim 11, wherein:

the waveguide attachment dock and the transducer attachment dock are disposed to directly physically couple the ultrasonic waveguide and the ultrasonic transducer and cause a corresponding rotation of the ultrasonic transducer with respect to the handle body when at least one of the ultrasonic waveguide and the ultrasonic transducer rotates.

20. The ultrasonic surgical handle assembly according to claim 1, further comprising:

a device identifier communicatively coupled to the handle body and operable to communicate at least one piece of information about the handle body, the at least one piece of information being at least one of a handle identifier, an information list of previous use, a waveguide identifier, and a transducer identifier; and

the battery is a removable battery comprising a power source and a power-source controller, the power-source controller being operable to select one of a set of different battery output powers dependent upon the at least one piece of information.

21. The ultrasonic surgical handle assembly according to claim 1, wherein the resonant wave is a sine wave.

22. An ultrasonic surgical handle assembly connectable to a cordless ultrasonic transducer, an ultrasonic waveguide, a removable battery, and a cordless ultrasonic-signal-generator assembly, the handle comprising:

a removable shell containing therein a driving-wave generation circuit of the ultrasonic-signal-generator assembly;

a first handle body portion defining therein a selectively accessible and aseptically sealable battery-holding compartment;

configured to aseptically removably hold therein the removable battery; and

having an electrical connector; and

a second handle body portion connected to the first handle body portion and having;

an ultrasonic-signal-generator assembly dock exposed to the environment and shaped to substantially simultaneously selectively removably secure the shell directly to the second handle body portion and electrically couple the ultrasonic-signal-generator assembly to the removable battery in the battery-holding compartment; and

a transducer attachment dock exposed to the environment and shaped to substantially simultaneously;

place the ultrasonic transducer in coaxial alignment with the ultrasonic waveguide; and

electrically couple the ultrasonic transducer to the ultrasonic-signal-generator assembly when the shell is secured to the ultrasonic-signal-generator assembly dock, wherein the ultrasonic-signal-generator assembly is operable to dynamically produce a resonant wave along the waveguide by exciting the ultrasonic transducer when the transducer is coupled to the waveguide.

23. The ultrasonic surgical handle assembly according to claim 22, wherein the resonant wave is a sine wave.