Treatment system for surgery and control method of treatment system for surgery

• US 8,287,485 B2
• Filed: 01/28/2009
• Issued: 10/16/2012
• Est. Priority Date: 01/28/2009
• Status: Active Grant

• Current Assignee: Olympus Corporation
• Original Assignee: Olympus Medical Systems Corporation (Olympus Corporation)
• Inventors: Kimura, Kenichi, Ishikawa, Manabu
• Primary Examiner(s): Mehta, Bhisma
• Application Number:
  US12/361,003
• Publication Number:
  US 20100191173A1
• Time in Patent Office: 1,357 Days
• Field of Search: 604/22, 604/27, 604/65, 604/67
• US Class Current: 604/22
• CPC Class Codes: A61B 17/320708 Curettes, e.g. hollow scraping instruments
• CPC Class Codes: A61B 18/148 having a short, rigid shaft for accessing the inner body transcutaneously, e.g. for neurosurgery or arthroscopy
• CPC Class Codes: A61B 2017/320069 for ablating tissue
• CPC Class Codes: A61B 2017/32007 with suction or vacuum means
• CPC Class Codes: A61B 2017/320075 single edge blade, e.g. for cutting
• CPC Class Codes: A61B 2017/320077 double edge blade, e.g. reciprocating
• CPC Class Codes: A61B 2018/1422 Hook
• CPC Class Codes: A61M 1/77 Suction-irrigation systems aspiration tips supplying fluids A61M1/85; specific for negative pressure wound therapy A61M1/92; combined with tracheal tubes A61M16/0463
• CPC Class Codes: A61M 2205/3331 Pressure; Flow
• CPC Class Codes: A61M 2205/3344 Measuring or controlling pressure at the body treatment site
• CPC Class Codes: A61M 3/0202 with electronic control means or interfaces
• CPC Class Codes: A61M 3/0208 before use
• CPC Class Codes: A61M 3/022 Volume; Flow rate
• CPC Class Codes: A61M 3/0258 by means of electric pumps

Abstract

A treatment system for surgery includes: a handpiece driving apparatus for supplying electric energy to a handpiece, the handpiece including a treatment portion insertable into a body cavity; a perfusion apparatus for perfusing liquid in the body cavity, the perfusion apparatus being capable of adjusting pressure in the body cavity; and a control circuit for controlling the pressure in the body cavity to a different level in conjunction with an output state of the handpiece driving apparatus and changing a flow rate of the perfusion liquid.

Claims

1. A treatment system for surgery comprising:

a handpiece driving apparatus for supplying electric energy to a handpiece, the handpiece including a treatment portion insertable into a body cavity;

a perfusion apparatus for perfusing liquid in the body cavity, the perfusion apparatus being capable of adjusting pressure in the body cavity; and

a control section for receiving a signal indicative of an output state of the handpiece driving apparatus, and for controlling the pressure in the body cavity to a different level and changing a flow rate of the liquid in conjunction with the output state of the handpiece driving apparatus, by controlling the perfusion apparatus in accordance with the received signal such that a pressure level in the body cavity when the handpiece is driven is higher than a pressure level in the body cavity when the handpiece is not driven, and such that the flow rate of the liquid when the handpiece is driven is larger than the flow rate of the liquid when the handpiece is not driven.

2. The treatment system for surgery according to claim 1, wherein

the handpiece includes an ultrasonic transducer and an ultrasonic probe, and

the handpiece driving apparatus includes an ultrasonic transducer driving circuit for driving the ultrasonic transducer.

3. The treatment system for surgery according to claim 2, wherein

the handpiece further includes an active electrode to which high-frequency current is supplied, and

the handpiece driving apparatus includes a high-frequency driving circuit for supplying high-frequency current to the active electrode.

4. The treatment system for surgery according to claim 3, wherein the handpiece includes a positioning mechanism for selectively positioning the active electrode with respect to the ultrasonic probe.

5. The treatment system for surgery according to claim 3, wherein the ultrasonic probe includes a channel penetrating from a rear end to a distal end of the ultrasonic probe, and the active electrode is insertable into the channel.

6. The treatment system for surgery according to claim 1, wherein

the handpiece includes an active electrode to which high-frequency current is supplied, and

the handpiece driving apparatus includes a high-frequency driving circuit for supplying high-frequency current to the active electrode.

7. The treatment system for surgery according to claim 1, wherein the perfusion apparatus includes:

a liquid source of the liquid;

a liquid feeding conduit connected to the liquid source;

a liquid feeding pump for pumping out the liquid in the liquid feeding conduit;

a drainage conduit;

a drainage valve for opening and closing the drainage conduit; and

a pressure sensor for monitoring the pressure in the body cavity.

8. The treatment system for surgery according to claim 1, further comprising a switch capable of driving the control section to change a flow rate of the liquid, even in a state where the handpiece driving apparatus is not supplying the electric energy to the handpiece.

9. A control method of a treatment system for surgery by a control section, the control method comprising:

controlling a perfusion apparatus, by the control section, in accordance with an output state of a handpiece driving apparatus for supplying electric energy to a handpiece having a treatment portion insertable into a body cavity, and based on pressure detected by a pressure sensor for monitoring pressure in the body cavity to perform feeding and drainage of a liquid such that a pressure level in the body cavity when the handpiece is driven is higher than a pressure level in the body cavity when the handpiece is not driven, and such that a flow rate of the liquid when the handpiece is driven is larger than the flow rate of the liquid when the handpiece is not driven.

10. The control method of the treatment system for surgery according to claim 9, wherein the control section controls the perfusion apparatus such that a flow rate of the feeding and drainage of the liquid when the handpiece is driven is larger than a flow rate of the feeding and drainage of the liquid when the handpiece is not driven.

11. The control method of the treatment system for surgery according to claim 10, wherein the control section controls the perfusion apparatus to perform the feeding and drainage of the liquid in response to operation of a predetermined switch even in a state where the handpiece driving apparatus is not supplying the electric energy to the handpiece.

12. The control method of the treatment system for surgery according to claim 9, wherein the control section controls the perfusion apparatus to perform the feeding and drainage of the liquid in response to operation of a predetermined switch even in a state where the handpiece driving apparatus is not supplying the electric energy to the handpiece.