Surgical operating apparatus with temperature control

Patent metadata

Field	Value
Publication number	US-9895160-B2
Application number	US-201414254412-A
Country	US
Kind code	B2
Filing date	Apr 16, 2014
Priority date	Apr 16, 2014
Publication date	Feb 20, 2018
Grant date	Feb 20, 2018

Abstract

A probe includes a probe distal end body, a vibration transmission body and a heat dissipation unit. The probe distal end body includes a first electrode. The vibration transmission body is arranged to a proximal end of the probe distal end body. The vibration transmission body transmits ultrasonic vibration generated by an ultrasonic transducer to the probe distal end body, and transmits current to the first electrode. An interior surface of the probe distal end body and an interior surface of the vibration transmission body define an interior space. The heat dissipation unit dissipates heat generated at the probe distal end body, wherein at least a portion of the heat dissipation unit is arranged in the interior space defined by the probe distal end body and the vibration transmission body. A treatment instrument includes the probe and an end effector including a second electrode.

First claim

What is claimed is:

1. A probe comprising:
a probe distal end body comprising a first electrode;
a vibration transmission body removably connected to the probe distal end body,
wherein the vibration transmission body is configured to transmit ultrasonic vibration generated by an ultrasonic transducer remote from the probe distal end body to the probe distal end body by mechanical vibration transmission, and to transmit current to the first electrode, and
wherein an interior surface of the probe distal end body and an interior surface of the vibration transmission body define an interior space; and

a heat dissipation unit,
wherein at least a portion of the heat dissipation unit is arranged in the interior space defined by the probe distal end body and the vibration transmission body, and
wherein the heat dissipation unit is configured to dissipate heat, generated remotely from the ultrasonic transducer at the probe distal end body by one or both of the mechanical vibration transmission and the current, along the at least a portion of the heat dissipation unit arranged in the interior space and away from the probe distal end body,

wherein the interior space extends along a longitudinal axis between a distal end and a proximal end,
wherein the distal end of the interior space is closed, and
wherein the distal end of the interior space corresponds with a first node position of the ultrasonic vibration.

2. The probe according to claim 1 ,
wherein the heat dissipation unit comprises a heat pipe arranged in the interior space defined by the interior surface of the probe distal end body and the interior surface of the vibration transmission body.

3. The probe according to claim 2 ,
wherein a distal end portion of the heat pipe is thermally coupled to the probe distal end body such that the distal end portion is configured to absorb thermal energy generated by the probe distal end body to heat a working fluid of the heat pipe from a fluid phase into a vapor phase, and
wherein a proximal end portion of the heat pipe is configured to recondense the working fluid from the vapor phase back to the fluid phase to release the thermal energy at a position away from the distal end portion of the heat pipe.

4. The probe according to claim 1 ,
wherein the heat dissipation unit comprises a heat dissipating core material arranged in the interior space defined by the interior surface of the probe distal end body and the interior surface of the vibration transmission body.

5. The probe according to claim 4 ,
wherein the vibration transmission body comprises a first material having a first thermal conductivity, and
wherein the heat dissipating core material comprises a second material having a second thermal conductivity that is higher than the first thermal conductivity.

6. The probe according to claim 5 ,
wherein the first material is stainless steel and the second material is graphite.

7. The probe according to claim 1 ,
wherein the heat dissipation unit comprises a closed loop coolant circulation system comprising:
a coolant tubing comprising an input tubing segment and an output tubing segment arranged within the interior space defined by the probe distal end body and the vibration transmission body, wherein the input tubing segment is in thermal contact with the probe distal end body;
a coolant pump; and
a heat exchanger,
wherein the coolant pump is configured to pump a coolant that is heated by thermal energy from the probe distal end body from the input tubing segment through the output tubing segment to the heat exchanger,
wherein the heat exchanger is configured to dissipate the thermal energy in the heated coolant, and
wherein the coolant pump is configured to pump the coolant from the heat exchanger through the input tubing segment toward the probe distal end body.

8. The probe according to claim 7 ,
wherein the interior space extends through a proximal end of the vibration transmission body, and
wherein the input tubing segment and the output tubing segment extend proximally through the proximal end of the vibration transmission body.

9. The probe according to claim 7 ,
wherein the vibration transmission body defines a port connecting the interior surface of the vibration transmission body and an external surface of the vibration transmission body, and
wherein the input tubing segment and the output tubing segment extend proximally through the port.

10. The probe according to claim 1 ,
wherein the vibration transmission body is comprised of stainless steel.

11. The probe according to claim 1 ,
wherein the first electrode is one of a pair of bipolar electrodes, wherein the first electrode is electrically connected to a first electric path through which the current is transmitted, and
wherein the probe further comprises an end effector configured to move relative to the probe distal end body to change a distance between the end effector and the probe distal end body, wherein the end effector comprises a second electrode that is another of the pair of bipolar electrodes, the second electrode being configured to be electrically connected to a second electric path through which the current is transmitted.

12. The probe according to claim 11 ,
wherein the heat dissipation unit comprises a heat pipe arranged in the interior space defined by the interior surface of the probe distal end body and the interior surface of the vibration transmission body.

13. The probe according to claim 12 ,
wherein a distal end portion of the heat pipe is thermally coupled to the probe distal end body such that the distal end portion is configured to absorb thermal energy generated by the probe distal end body to heat a working fluid of the heat pipe from a fluid phase into a vapor phase, and
wherein a proximal end portion of the heat pipe is configured to recondense the working fluid from the vapor phase back to the fluid phase to release the thermal energy at a position away from the distal end portion of the heat pipe.

14. The probe according to claim 11 ,
wherein the heat dissipation unit comprises a heat dissipating core material arranged in the interior space defined by the interior surface of the probe distal end body and the interior surface of the vibration transmission body.

15. The probe according to claim 14 ,
wherein the vibration transmission body comprises a first material having a first thermal conductivity, and
wherein the heat dissipating core material comprises a second material having a second thermal conductivity that is higher than the first thermal conductivity.

16. The probe according to claim 15 ,
wherein the first material is stainless steel and the second material is graphite.

17. The probe according to claim 11 ,
wherein the heat dissipation unit comprises a closed loop coolant circulation system comprising:
a coolant tubing comprising an input tubing segment and an output tubing segment arranged within the interior space defined by the probe distal end body and the vibration transmission body, wherein the input tubing segment is in thermal contact with the probe distal end body;
a coolant pump; and
a heat exchanger,

wherein the coolant pump is configured to pump a coolant that is heated by thermal energy from the probe distal end body from the input tubing segment through the output tubing segment to the heat exchanger,
wherein the heat exchanger is configured to dissipate the thermal energy in the heated coolant, and
wherein the coolant pump is configured to pump the coolant from the heat exchanger through t

Assignees

• Gyrus Acmi Inc
• Gyrus Acmi Inc

Inventors

• Fan Tailin
• Batchelor Kester J
• Nelson Jeff

Classifications

• A61B2018/00095

  high, i.e. heat conducting · CPC title

• A61B2018/00994

  combining two or more different kinds of non-mechanical energy or combining one or more non-mechanical energies with ultrasound · CPC title

• A61B18/1445 Primary

  at the distal end of a shaft, e.g. forceps or scissors at the end of a rigid rod · CPC title

• A61B2017/2825

  Inserts of different material in jaws · CPC title

• A61B17/320068 Primary

  using mechanical vibrations, e.g. ultrasonic (A61B17/22012 takes precedence; dental tooth drilling devices operated by vibration A61C3/03; removing intra-ocular material using mechanical vibrations A61F9/00745) · CPC title