Apparatus for thermotherapy

• US 6,488,697 B1
• Filed: 07/12/2000
• Issued: 12/03/2002
• Est. Priority Date: 07/13/1999
• Status: Expired due to Fees

• Current Assignee: Terumo Kabushiki Kaisha (Terumo Corporation)
• Original Assignee: Terumo Kabushiki Kaisha (Terumo Corporation)
• Inventors: Sugahara, Michihiro, Ishiyama, Haruo, Ariura, Shigeki
• Primary Examiner(s): Cohen, Lee
• Assistant Examiner(s): JOHNSON III, HENRY M
• Application Number:
  US09/614,587
• Time in Patent Office: 874 Days
• Field of Search: 607/89, 607/100, 607/101, 607/88, 607/93, 606/10-34
• US Class Current: 607/89
• CPC Class Codes: A61B 2017/00274 Prostate operation, e.g. prostatectomy, turp, bhp treatment
• CPC Class Codes: A61B 2018/00023 closed, i.e. without wound contact by the fluid
• CPC Class Codes: A61B 2018/00547 Prostate
• CPC Class Codes: A61B 2018/2283 with pivotable mirrors
• CPC Class Codes: A61N 5/0601 Apparatus for use inside the body

Abstract

The controller 6 in the apparatus 10 for thermotherapy automatically computes the power P of the laser beam and the flow volume Q of the refrigerant forwarded to the main body 110 as the therapeutic conditions required for effecting the thermotherapy. The controller 6 delivers control signals to the laser beam generating device 2 and the refrigerant circulating device 4, depending on the therapeutic conditions obtained as described above. The therapeutic conditions thus set are displayed on the monitor 7 together with the input information introduced into the operating part 8. The controller 6 is further capable of automatically computing the therapeutic conditions required for effecting the thermotherapy based on the minimum distance d1 and the maximum distance d2 between the laser beam emitting terminal 111a, namely the surface of the surface layer 21, and the target site 30.

Claims

1. An apparatus for thermotherapy of prostate gland comprising:

an energy generating device for generating energy;

an emitting part for directing the energy generated by said energy generating device to a vital tissue to irradiate the vital tissue;

an input part for imparting, as an input, information containing diagnostic data of said prostate gland;

a control part for setting therapeutic conditions on the basis of the input information and controlling the operation of said energy generating device on the basis of the therapeutic conditions;

moving means for moving the emitting part in a direction with respect to the vital tissue irradiated with the energy; and

interlocking means for altering an angle of irradiation of the emitting part in accordance with the movement of the emitting part.

2. The apparatus according to claim 1, which further comprises a long and slender inserting part intended for insertion into a living body, wherein the emitting part is disposed in the inserting part.

3. An apparatus according to claim 1, wherein said input information includes the diameters of said prostate gland in three respective axial directions.

4. An apparatus according to claim 1, wherein said energy is a laser beam.

5. An apparatus according to claim 1, wherein said therapeutic conditions are one or more therapeutic conditions selected from the group consisting of the power of said energy, the duration of emission of said energy, the temperature of a refrigerant, if any used herein, and the flow volume of said refrigerant where said refrigerant is circulated for required service.

6. An apparatus for thermotherapy of prostate gland comprising:

an energy generating device for generating energy;

an emitting part for directing the energy generated by said energy generating device to the vital tissue to irradiate the vital tissue;

an input part for imparting, as an input, information containing data specifying a size of said prostate gland;

a control part for setting therapeutic conditions on the basis of the input information and controlling operation of said energy generating device on the basis of the therapeutic conditions;

moving means for moving the emitting part with respect to the surface of the vital tissue irradiated with the energy; and

interlocking means for altering an angle of irradiation of the emitting part in accordance with the movement of the emitting part.

7. An apparatus according to claim 6, wherein said input part acquires the data stored in a device other than the apparatus for thermotherapy by means of an electronic circuit.

8. The apparatus according to claim 6, wherein said thermotherapy is prohibited when said data is smaller than a minimum characteristic value set in advance.

9. The apparatus according to claim 6, wherein said data is substituted for a maximum characteristic value set in advance and said therapeutic conditions are set accordingly when said data is larger than the maximum characteristic value.

10. The apparatus according to claim 6, wherein said therapeutic conditions are set based on a smallest of at least two kinds of data.

11. An apparatus for thermotherapy of affected vital tissue comprising:

an energy generating device for generating energy;

an emitting part for directing the energy generated by said energy generating device to the vital tissue to irradiate the vital tissue;

an input part for imparting, as an input, information containing position information regarding a target site of heating;

a control part for setting therapeutic conditions on the basis of the input information and controlling operation of said energy generating device on the basis of the therapeutic conditions;

moving means for moving the emitting part with respect to the surface of the vital tissue irradiated with the energy; and

interlocking means for altering an angle of irradiation of the emitting part in accordance with the movement of the emitting part.

12. The apparatus according to claim 11, comprising:

a long and slender part intended for insertion into the living body; and

the emitting part disposed in said inserting part and adapted to direct the energy toward the vital tissue.

13. An apparatus according to claim 11, wherein said input part acquires the data stored in a device other than said apparatus for thermotherapy by means of an electronic circuit.

14. The apparatus according to claim 11, wherein said input information includes position information indicating a range of the vital tissue to be heated to a level exceeding a prescribed level.

15. The apparatus according to claim 11, wherein said input information includes position information indicating a point in the vital tissue to be heated to a highest temperature and temperature information indicating a target temperature at said point.

16. The apparatus according to claim 11, wherein said energy is a laser beam.

17. The apparatus according to claim 11, wherein said therapeutic conditions are one or more therapeutic conditions selected from the group consisting of a power of said energy, a duration of emission of said energy, a temperature of a refrigerant, and a flow volume of said refrigerant where said refrigerant is circulated for required service.

18. An apparatus for thermotherapy of affected vital tissue comprising:

an energy generating device for generating an energy;

an irradiating part for directing the energy generated by said energy generating device to a vital tissue to irradiate the vital tissue;

an input part for imparting as an input information containing the position information regarding a target site of heating; and

a control part for setting therapeutic conditions on the basis of the input information and controlling the operation of said energy generating device on the basis of the therapeutic conditions, wherein

said input information includes position information indicating a point in the vital tissue to be heated to a highest temperature and temperature information indicating the target temperature at said point.