JP2004290698A - Probe - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a probe capable of keeping running costs low and surely adhering the wall part of a probe body to a subject for examination, without damaging its insertion operationality on passing the anus having high insertion resistance. <P>SOLUTION: The probe has the probe body 2 which can be inserted into the body of a patient, a balloon fastening shaft 19, a balloon body 15, a balloon mounting window 4 and a fluid infusion means. The probe body 2 is provided with the balloon fastening shaft 19 in an attachable and a detachable manner. The balloon body 15 is connected to a tube 16 so as to deliver fluids and installed in the balloon fastening shaft 19 in an attachable manner. The balloon mounting window 4 is installed in the probe body 2 and serves as an opening part to open capable of housing the balloon body 15. The fluid infusion means infuses fluids into the tube 16 for enabling the balloon body 15 to be inflated toward the outside of the probe body 2 from the balloon mounting window 4. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a probe inserted into a rectum and fixed to a wall of a subject such as a rectum wall.

  Generally, a method using RF waves, microwaves, lasers, or the like has been proposed for heating treatment of transurethral prostatic hypertrophy. Each of these treatments heats the prostate tissue to 45 ° C. or higher for about 30 minutes to 1 hour, and is generally called high-temperature treatment (thermotherapy).

  Here, in the heating by the respective energies, there are differences in how many times the heating temperature is targeted in a temperature range of 45 ° C. or more, the degree of penetration of energy into living tissue by frequency (tissue absorption characteristics), and the like. In some cases, the effects of overheating on living tissues other than the prostate must be taken into account.

  For example, in the case of heating by RF waves or electromagnetic waves using microwaves, even if the heating target temperature is a relatively low temperature of 45 ° C. or more, for example, about 50 to 60 ° C., the frequency of the electromagnetic waves is relatively low. Therefore, the effect of overheating on living tissues other than the prostate cannot be ignored. That is, for example, when the rectal wall tissue, which is a normal tissue, is exposed to a temperature of 45 ° C. for about 1 hour, there is a possibility that the formation of an ulcer after the operation or perforation of the rectal wall due to the necrotic loss of the tissue. Therefore, in this type of therapy called thermotherapy, a means for overheating the rectum wall, which is a typical adjacent tissue, is essential.

  Therefore, as one of the means for protecting the rectal wall from overheating, there is proposed a rectal wall temperature measuring means for measuring the temperature of the rectal wall using a rod-shaped rectal probe as disclosed in Patent Document 1, for example. I have.

Further, for example, Patent Documents 2 and 3 disclose a rectal probe having a structure in which a temperature measuring means is provided on a flexible balloon body having a handle connected thereto. Further, Patent Document 2 discloses a balloon body without a shaft.
Japanese Patent Publication No. 4-506621 U.S. Pat. No. 5,792,070 Japanese Patent No. 2,795,540

  However, in the rectal probe disclosed in Patent Document 1, there is no fixing means for fixing the position of the rod-shaped shaft of the rectal probe inserted into the rectum, so that the position of the rectal probe becomes unstable in the rectum. For this reason, it is uncertain that the temperature measuring means is brought into close contact with the prostatic rectum wall, and it is difficult to reliably measure the temperature of the prostatic rectum wall.

  In addition, the probes disclosed in Patent Documents 2 and 3 have a configuration in which the balloon and the handle or the temperature detecting means cannot be removed. And the running cost tends to increase.

  Furthermore, the balloon body without a shaft shown in Patent Document 2 has low rigidity, so that there is room for improvement in the operability of inserting the balloon body during passage through the anus, which has relatively high insertion resistance in actual use.

  The present invention has been made with a focus on the above circumstances, and its purpose is to reduce the running cost and to lower the wall of the probe body without impairing the insertion operability when passing through the anus with a large insertion resistance. An object of the present invention is to provide a probe that can surely adhere to a subject.

The invention according to claim 1 is connected to a probe main body provided so as to be insertable into a subject, a fixing member detachably provided to the probe main body, and an injection conduit having an insertion passage through which a fluid can be sent. A balloon provided so as to be attached to the fixing member, a balloon mounting window as an opening provided in the probe main body and opened so as to be able to store the balloon attached to the fixing member, and the balloon And a fluid injection means for injecting the fluid into the injection conduit so that the fluid can be inflated from the balloon mounting window toward the outside of the probe main body.
According to the first aspect of the present invention, the probe is used in a state where the probe body, the balloon fixing member, and the balloon are combined. Further, when inserting the probe into the rectum, the probe is inserted into the rectum from the anus with the balloon deflated at the time of insertion, and when the probe body reaches the position corresponding to the height of the prostate, it is connected to the fluid injection part. The balloon is inflated by injecting fluid into the balloon from the fluid injecting means. At this time, the inflated balloon comes into contact with the posterior wall of the rectum, and as a result, the pressure of the balloon causes the wall of the probe body to come into close contact with the subject. After the treatment is completed, the probe is removed, and the balloon with large consumption is separated from the probe body and the balloon fixing member, and discarded. In the next treatment, a new sterilized balloon can be used again in combination with the probe body and the balloon fixing member.

  ADVANTAGE OF THE INVENTION According to this invention, only the balloon which has a minimum required structure can be easily attached to and detached from the probe main body. For this reason, only the balloon that is intensely consumed can be replaced, so that the running cost can be reduced. Furthermore, since the balloon is detachably attached to the balloon opening of the rigid probe main body, the wall of the probe main body is securely adhered to the subject without impairing the insertion operability when passing through the anus, where the insertion resistance is large. be able to.

  Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. FIG. 1A shows a rectal temperature measuring probe 1 of the present embodiment. The rectal temperature measuring probe 1 is provided with a substantially cylindrical probe body 2 made of a hard resin. A handle 3 made of hard resin is connected to the base end of the probe body 2.

  A balloon mounting window (balloon opening) 4 for mounting a balloon is provided on the outer peripheral surface of the probe main body 2. As shown in FIG. 2A, the balloon mounting window 4 is formed by an elongated hole-shaped opening extending in the central axis direction of the probe main body 2. Further, a guide hole (fixing member insertion portion) 5 for inserting a balloon fixing member is formed on the distal end surface of the probe main body 2. The guide hole 5 communicates with the balloon mounting window 4.

  A temperature measuring section (temperature measuring means) 6 is provided on the outer peripheral surface of the probe main body 2 on the side opposite to the balloon mounting window 4. As shown in FIG. 2B, a plurality of, in this embodiment, five temperature measuring elements 8a to 8e are arranged in tandem in the temperature measuring section 6 on a substantially planar base 7. As each of these temperature measuring elements 8a to 8e, for example, a thermocouple, a thermistor, a platinum resistance thermometer, an optical fiber, or the like is used.

  The pitch between the temperature measuring elements 8a to 8e is 5 to 20 mm, preferably about 10 mm. Further, as shown in FIG. 4, the temperature measuring elements 8a to 8e are mounted on element bases 9a to 9e, respectively, and are insulated by insulating coating members 10a to 10e, respectively.

  The insulating coating members 10a to 10e are necessary when each of the temperature measuring elements 8a to 8e does not have an insulating structure, and may be a thin-film resin coating having a small heat insulating effect, such as a fluororesin. The space between each of the temperature measuring elements 8a to 8e, the element bases 9a to 9e, and the insulating coating members 10a to 10e is filled with an appropriate adhesive or filler.

  Further, one end of a lead wire 21 is connected to each of the temperature measuring elements 8a to 8e. Here, as shown in FIG. 3A, through holes 22 for these lead wires 21 are formed at the rear end of the probe main body 2 and at the axis of the handle 3.

  One end of a signal cable 11 is connected to a base end of the handle 3 of the probe main body 2 via an old member 12. A lead wire 21 is inserted inside the signal cable 11. Further, a signal connector 13 is attached to the other end of the signal cable 11. The other end of the lead wire 21 of each of the temperature measuring elements 8a to 8e is connected to each connection terminal of the signal connector 13. In addition, an intrusion prevention member 14 that regulates insertion of the patient H into the body protrudes from the handle 3 in the same direction as the temperature measurement unit 6. The intrusion prevention member 14 is an index for preventing the rectal temperature measuring probe 1 from immersing into the rectum H2 of the patient H and for indicating the direction of the temperature detecting section 6 of the rectal temperature measuring probe 1.

  A substantially cylindrical balloon body 15 is detachably mounted on the balloon mounting window 4 of the probe main body 2. The balloon body 15 is composed of a double tubular tube formed of a flexible material such as silicon or latex.

  Further, one end of a tube (injection conduit) 16 into which the fluid is injected is connected to the balloon body 15. A stopcock (fluid injection unit) 17 for opening and closing operation is connected to the other end of the tube 16.

  2A, a tube insertion groove 18 extends along the axial direction of the probe main body 2 on the outer peripheral surfaces of the probe main body 2 and the handle 3. As shown in FIG. The front end of the tube insertion groove 18 communicates with the balloon mounting window 4 of the probe body 2. The tube 16 of the balloon body 15 is inserted into the tube insertion groove 18.

  A balloon fixing shaft (balloon fixing member) 19 is detachably connected to the guide hole 5 of the probe body 2. The balloon fixing shaft 19 has a small-diameter insertion portion 19a inserted into the guide hole 5 and inserted into the lumen 15a of the balloon body 15 in the balloon mounting window 4, and is disposed at the base end of the insertion portion 19a. Large diameter portion 19b is provided.

  Further, a male screw portion 19c having a smaller diameter than the large diameter portion 19b and a larger diameter than the insertion portion 19a is formed between the large diameter portion 19b and the insertion portion 19a. Here, the probe main body 2 has a screw hole 20 formed at the entrance of the guide hole 5 to be screwed with the male screw 19 c of the balloon fixing shaft 19. Then, in a state where the balloon body 15 is mounted on the balloon mounting window 4 of the probe main body 2, the insertion portion 19 a of the balloon fixing shaft 19 is inserted into the guide hole 5 of the probe main body 2. The insertion portion 19a is inserted into the lumen 15a of the balloon body 15. In this state, the male screw 19c of the balloon fixing shaft 19 is screwed into the screw hole 20 of the guide hole 5 of the probe main body 2, whereby the balloon fixing shaft 19 is fixed to the probe main body 2 side. At the same time, the balloon body 15 is fixed to the probe main body 2 via the balloon fixing shaft 19.

  Note that the balloon body 15 of the probe body 2 is not necessarily singular, and in order to stabilize the fixed state of the rectal temperature measuring probe 1 on the rectum wall, the balloon body 15 is arranged in a tandem, parallel or other mutual arrangement state on the outer peripheral surface of the probe body 2. May be arranged in a plurality.

  Next, the operation of the above configuration will be described. As shown in FIG. 1B, the rectal temperature measuring probe 1 of the present embodiment can separate the probe main body 2, the balloon fixed shaft body 19, and the balloon body 15 from each other. When using the rectal temperature measuring probe 1 of the present embodiment, the balloon body 15 is fitted into the probe main body 12 through the balloon mounting window 4.

  Subsequently, the insertion portion 19a of the balloon fixing shaft 19 is inserted into the guide hole 5 on the distal end surface of the probe body 12. At this time, the insertion portion 19a of the balloon fixing shaft body 19 inserted through the guide hole 5 is further inserted into the lumen 15a of the balloon body 15. In this state, the male screw 19 c of the balloon fixing shaft 19 is screwed into the screw hole 20 of the guide hole 5 of the probe body 2. Thereby, the balloon fixing shaft 19 is fixed to the probe main body 2 side, and at the same time, the balloon body 15 is fixed to the probe main body 2 via the balloon fixing shaft 19.

  The tube 16 of the balloon body 15 is housed in the tube insertion groove 18 on the outer peripheral surface of the probe main body 2 and the handle 3, and is appropriately held on the handle 3 by tape or the like as necessary. Further, the signal connector 13 of the rectal temperature measuring probe 1 is connected to a heating treatment device (not shown). The temperature signal detected by each of the temperature measuring elements 8a to 8e of the temperature measuring section 6 is set so as to be supplied to a heating treatment device (not shown).

  Thereafter, the rectal temperature measuring probe 1 is inserted into the patient H, that is, into the rectum H2 from the anus H1 of the patient H. At this time, the rectal temperature measuring probe 1 is inserted into the body of the patient H in a state where the position of the balloon mounting window 4 of the probe main body 2 in the rotation direction is correctly positioned using the intrusion prevention member 14 as an index of the rotation direction as shown in FIG. Inserted. When the rectal temperature measuring probe 1 is inserted, the balloon body 15 is held in an uninflated contracted state shown in FIG.

  Further, during the operation of inserting the rectal temperature measuring probe 1, when the temperature measuring unit 6 is inserted to a predetermined insertion position in the rectum H2, for example, to a height corresponding to a position corresponding to the prostate H3, a syringe (not shown) is inserted from the cock 17 or the like. Then, a suitable volume of liquid or gas is injected to inflate the balloon body 15. At this time, the balloon body 15 is eccentrically expanded so as to protrude outside the balloon mounting window 4 on the probe main body, and abuts on the rectal posterior wall H4. As a result, the temperature measuring section 6 comes into close contact with the rectal front wall H5 while being pressed against it.

  On the other hand, a heating applicator 23 is inserted into the urethra H6 of the patient H. An anchor balloon 24 is disposed at the tip of the applicator 23. Further, an energy emitting means 25 such as a microwave antenna is provided at the tip of the applicator 23. Then, the distal end of the applicator 23 inserted into the urethra H6 is guided into the bladder H7, and the anchor balloon 24 is expanded in the bladder H7. Accordingly, the applicator 23 is positioned in such a manner that the energy emitted from the energy emitting means 25 such as the microwave antenna of the applicator 23 can be injected into the prostate H3 to be treated, and the applicator 23 is positioned in the anchor balloon 24. Has been fixed by. In general, it is desirable to provide a cooling water circulating means in the applicator 23 to protect the urethra H6 during heating.

  Further, when the heating treatment by the applicator 23 is started, the prostate H3 is heated to a temperature of 45 ° C. or higher for about 30 minutes to 1 hour by the energy emission from the energy release means 25 of the applicator 23. During this time, the rectal temperature measurement probe 1 keeps monitoring the temperature of the rectal front wall H5.

  Here, when the rectal temperature detected by each of the temperature measuring elements 8a to 8e of the temperature measuring section 6 of the rectal temperature measuring probe 1 reaches 40 to 45 ° C, preferably 42 to 43 ° C, the heating device main body The heating energy output from the energy release means 25 of the applicator 23 may be reduced or stopped.

  Further, since the tube 16 of the balloon body 15 is housed in the tube insertion groove 18 provided in the rectal temperature measuring probe 1, the tube 16 of the balloon body 15 is not crushed by the contraction of the anus H1. Therefore, even when the balloon body 15 is deflated after the treatment, the operation can be performed without any problem.

  Further, gas generated in the rectum H2 during the treatment can be extracted to the outside through the tube insertion groove 18 of the rectal temperature measuring probe 1, so that there is an effect that the feeling of pressure of the patient H can be reduced.

  Further, when the rectal temperature measuring probe 1 is removed from the body of the patient H after the treatment is completed, the probe main body 2, the balloon fixed shaft body 19, and the balloon body 15 of the rectal temperature measuring probe 1 are shown in FIG. ). At this time, the balloon body 15 which is greatly consumed may be discarded if necessary. Further, the portion connected to the balloon fixed shaft 19 and the probe main body 2 can be easily cleaned and sterilized, and can be reused.

  Therefore, the above configuration has the following effects. That is, in this embodiment, as shown in FIG. 1B, the rectal temperature measuring probe 1 is configured to be separable into the probe main body 2, the balloon fixed shaft body 19, and the balloon body 15, so that the treatment is completed. From the rectal temperature measurement probe 1 which is later removed from the body of the patient H, the balloon body 15 with large consumption can be separated from the probe body 2 and the balloon fixed shaft body 19 and discarded. In the next treatment, the probe body 15 and the balloon fixing shaft 19 are washed and sterilized in advance, and a new sterilized balloon body 15 is supplied and used again in combination. . Therefore, only the balloon body 15 having the minimum necessary configuration can be easily replaced, so that the running cost can be reduced.

  Furthermore, since the consumable portion of the balloon body 15 can be separated from the probe body 15 and the balloon fixed shaft 19, which are the portions to be reused, the probe body 15 and the balloon fixed shaft 19 to be reused can be washed and sterilized. There is also an effect that can be easily performed.

  FIG. 6A shows a second embodiment of the present invention. In the present embodiment, the configuration of the temperature measuring section 6 in the rectal temperature measuring probe 1 of the first embodiment (see FIGS. 1A, 1B and 5) is changed as follows. Note that parts other than the temperature measuring unit 6 have the same configuration as the rectal temperature measuring probe 1 of the first embodiment, and the same parts as those of the rectal temperature measuring probe 1 of the first embodiment have the same reference numerals. The description is omitted here.

  That is, in the temperature measuring section 6 of the present embodiment, three temperature measuring elements 31a to 31c are arranged in tandem on a substantially planar base 7. Each of the temperature measuring elements 31a to 31c of the temperature measuring section 6 detects the temperature of the anterior rectum wall H5, but it is preferable to measure the temperature over at least about 3 cm in the longitudinal axis direction of the prostate H3. In this case, the mounting pitch of each of the temperature measuring elements 31a to 31c is preferably about 15 mm.

  Therefore, the above configuration has the following effects. That is, in the present embodiment, the number of the temperature measuring elements 31a to 31c mounted on the temperature measuring unit 6 of the rectal temperature measuring probe 1 is smaller than that of the rectal temperature measuring probe 1 of the first embodiment. 2 can be made compact. Furthermore, since the probe main body 2 can be reduced in size, there is an effect that the feeling of pressure on the patient can be reduced. Further, since the number of mounted temperature measuring elements 31a to 31c can be reduced, the rectal temperature measuring probe 1 can be configured at lower cost.

  FIG. 6B shows a third embodiment of the present invention. In the present embodiment, the configuration of the temperature measuring section 6 in the rectal temperature measuring probe 1 of the first embodiment (see FIGS. 1A, 1B and 5) is changed as follows.

  That is, in the temperature measuring section 6 of the present embodiment, one temperature measuring element 41a is disposed at the center on the substantially planar base 7, and four temperature measuring elements 41b to 41e are arranged around the temperature measuring element 41a. Is arranged.

  Therefore, the above configuration has the following effects. That is, according to the present embodiment, the temperature measuring elements are arranged side by side in the axial direction of the probe main body 2 of the rectal temperature measuring probe 1, and in addition, the temperature measuring elements are also arranged in the circumferential direction of the probe main body 2. Since it is provided, two-dimensional (length and width) temperature measurement on the rectal front wall H5 is possible. Therefore, the safety of treatment can be improved. Further, it is possible to increase the number of mounted temperature measuring elements while keeping the probe main body 2 compact.

  FIG. 7A shows a fourth embodiment of the present invention. In the present embodiment, the configuration of the temperature measuring section 6 in the rectal temperature measuring probe 1 of the first embodiment (see FIGS. 1A, 1B and 5) is changed as follows.

  That is, in the temperature measuring section 6 of the present embodiment, two rows of temperature measuring elements 51a1 to 51c1 and 51a2 to 51c2 are arranged side by side at the center on the substantially planar base 7 and at the front end on the base 7 One temperature measuring element 51d is arranged at the rear end of the base 7, and one temperature measuring element 51e is arranged at the rear end of the base 7.

  Therefore, in the above configuration, the temperature information is intensively collected at the temperature measuring elements 51a1 to 51c1 and 51a2 to 51c2 arranged in two rows at the center of the base 7 of the temperature measuring unit 6. Can be. Therefore, since the rectal temperature with a larger amount of information can be measured at the central portion of the temperature measuring section 6, there is an effect that the safety of treatment can be improved.

  FIG. 7B shows a fifth embodiment of the present invention. In the present embodiment, the configuration of the temperature measuring section 6 in the rectal temperature measuring probe 1 of the first embodiment (see FIGS. 1A, 1B and 5) is changed as follows.

  That is, the temperature measuring section 6 of the present embodiment is provided with two sets of five temperature measuring elements 61a to 61e arranged in a row over the entire length on a substantially planar base 7 in a horizontal direction. .

  Therefore, according to the present embodiment having the above-described configuration, it is possible to measure the rectal temperature with a larger amount of information than in each of the first to fourth embodiments, and it is possible to collect temperature information in a wider range. Has the effect of further improving the safety of the vehicle.

  Note that the present invention is not limited to the above embodiment. For example, the arrangement of the temperature measuring element on the rectal temperature measuring probe 1 is not limited to the range of each of the above embodiments, but can be arranged at any position on the rectal temperature measuring probe 1. Further, it goes without saying that various modifications can be made without departing from the scope of the present invention.

Next, other characteristic technical matters of the present application will be additionally described as follows.
Record
(Appendix 1) A rigid probe body,
A plurality of temperature measuring means arranged on the first side on the probe body,
A shaft detachable from the probe body,
A balloon body that is extrapolated to a shaft body, when mounted on the probe main body, expands eccentrically in the second side direction opposite to the first side surface and can expand beyond the outer shape of the probe main body. ,
Rectal probe consisting of:

  (Additional Item 2) The probe according to Additional Item 1, wherein the balloon body is formed of a flexible double cylindrical body.

  (Additional Item 3) The probe according to Additional Item 1 or 2, wherein a plurality of temperature measuring means are arranged in tandem.

  (Additional Item 4) The probe according to Additional Item 1 or 2, wherein the plurality of temperature measuring means are arranged in a plurality of rows.

(Appendix 5) A rigid probe body,
A plurality of temperature measuring means disposed on a first side surface of the probe main body;
A shaft body detachably inserted into the probe body,
A balloon body having a lumen into which the shaft body is inserted, and a balloon body which is attachable to the probe main body and has a conduit for injecting a fluid,
After attaching the balloon body to the probe body, when the shaft body is inserted into the lumen of the balloon body and the fluid is injected from the conduit, the balloon body protrudes from the probe body and is inflatable. At least one opening provided on a surface of the probe body substantially opposite to the first surface;
A rectal temperature measuring probe comprising:

  (Additional Item 6) The rectal temperature measuring probe according to Additional Item 5, wherein the balloon body is formed of a flexible double cylindrical body.

(Prior art of Supplementary items 1 to 6) In the heating treatment of transurethral prostatic hypertrophy, a method using an RF wave, a microwave, a laser, or the like has been proposed. Each of these treatments heats the prostate tissue to 45 ° C. or higher for about 30 minutes to 1 hour, and is generally called high-temperature treatment (thermotherapy).
Heating by each energy is different from the prostate due to differences in how many heating temperatures are targeted in the temperature range of 45 ° C or higher, and differences in energy penetration depth (tissue absorption characteristics) due to frequency. May need to consider the effects of overheating on a given tissue.
For example, in the case of heating by electromagnetic waves using RF waves or microwaves, even if the heating target temperature is about 45 ° C. or higher and a relatively low temperature (50 to 60 ° C.), if the frequency of the electromagnetic waves is relatively low, The effects of overheating on tissues other than the prostate are not negligible, and a means for overheating protection of the rectal wall, which is a typical adjacent tissue, is essential. This is because if the rectal wall tissue, which is a normal tissue, is exposed to a temperature of 45 ° C. for about 1 hour, there is a possibility that rectum wall perforation due to formation of an ulcer or necrotic loss of the tissue may occur after surgery.

  For this reason, a rod-shaped rectal probe has been proposed as a means for measuring rectal wall temperature as an overheat protection means, for example, as shown in Patent Document 1.

  (Problems to be solved by additional items 1 to 6) However, since this probe does not have a fixing means in the rectum, the position of the rod-shaped shaft becomes unstable in the rectum, and the temperature measuring means comes into close contact with the prostatic rectum wall. It is uncertain. Therefore, it is difficult to reliably measure the temperature.

  Further, for example, the probes disclosed in Patent Literature 2 and Patent Literature 3 are composed of a temperature measuring means and a handle provided on a flexible balloon body, but it is impossible to remove the balloon and the handle or the temperature detecting means. And the entire probe must be discarded along with the deterioration of the balloon body, which is greatly consumed, and there is a problem in terms of running cost.

  Further, Patent Literature 2 discloses a balloon body without a shaft, and there is room for improvement in insertion operability when passing through the anus in actual use.

  (Purposes of Supplementary Items 1 to 6) The purpose of Supplementary Items 1 to 6 is to solve the above-mentioned problem, and a consumable part and a non-consumable part are configured to be easily detachable. The running cost is kept low by adopting the minimum configuration. In addition, an object of the present invention is to provide a rectal probe capable of securely bringing the temperature measuring means into close contact with the prostatic rectum wall without impairing insertion operability.

  (Means for Solving the Problems in Additional Items 1 to 6) In order to achieve the above object, the rectal probe according to additional items 1 to 6 is arranged on a rigid probe main body and a first side surface on the probe main body. A plurality of temperature measuring means, a shaft body detachable from the probe body, and a balloon body extrapolated to the shaft body, a second side opposite to the first side when mounted on the probe body. Which can be expanded eccentrically in the direction and exceed the outer shape of the probe main body.

  (Operation of Supplementary Items 1 to 6) The rectal probe is used in a form in which a probe main body, a shaft body, and a balloon body are combined. At the time of insertion, the balloon body is in a deflated state, the rectal probe is inserted into the rectum from the anus, and the balloon body is inflated at a position where the temperature detecting means reaches the height of the prostate. The inflated balloon body abuts the posterior wall of the rectum, and as a result, the temperature detecting means comes into close contact with the anterior wall of the rectum. Thereafter, transurethral prostate warming is performed and the temperature of the rectum wall is monitored. After the treatment is completed, the rectal probe is withdrawn, and the balloon body with large consumption is separated from the probe body and the shaft body, and discarded. At the time of the next treatment, the probe main body and the shaft body are washed and sterilized in advance, while a new sterilized balloon body is supplied and can be used again in combination.

  (Effects of Additional Items 1 to 6) According to Additional Items 1 to 6, only the balloon body having the minimum necessary configuration can be easily attached to and detached from the rectal probe main body. Therefore, only the balloon body that is heavily worn can be replaced, and the running cost can be reduced.

1A and 1B show a first embodiment of the present invention, wherein FIG. 1A is a side view showing an assembled state of an entire rectal temperature measuring probe, and FIG. 1B is a side view showing an exploded state of the rectal temperature measuring probe. FIG. 2A is a plan view of the probe main body of the rectal temperature measuring probe according to the first embodiment on the balloon opening side, and FIG. 2B is a plan view of the probe main body on the temperature measuring unit side. (A) is a longitudinal sectional view of the rectal temperature measuring probe of the first embodiment, (B) is a sectional view taken along line BB of (A), and (C) is a sectional view taken along line CC of (A). FIG. 3 is a longitudinal sectional view showing a temperature measuring section of a probe main body of the rectal temperature measuring probe according to the first embodiment. The longitudinal section of the important section showing the use condition of the rectal temperature measuring probe of a 1st embodiment. (A) is a plan view showing a temperature measuring part of a probe main body in a rectal temperature measuring probe according to a second embodiment of the present invention, and (B) is a probe in a rectal temperature measuring probe according to a third embodiment of the present invention. FIG. 3 is a plan view showing a temperature measuring unit of the main body. (A) is a plan view showing a temperature measuring part of a probe main body in a rectal temperature measuring probe according to a fourth embodiment of the present invention, and (B) is a probe in a rectal temperature measuring probe according to a fifth embodiment of the present invention. FIG. 3 is a plan view showing a temperature measuring unit of the main body.

Explanation of reference numerals

    2 ... Probe body, 4 ... Balloon mounting window (opening for balloon), 5 ... Guide hole (fixing member insertion section), 6 ... Temperature measuring section (temperature measuring means), 15 ... Balloon body, 16 ... Tube (injection tube 17) Stopcock (fluid injection part), 19: Balloon fixing shaft (balloon fixing member).

Claims (1)

A probe body provided so as to be insertable into the subject,
A fixing member detachably provided on the probe body,
A balloon that is connected to an injection conduit having an insertion passage capable of sending a fluid and is provided so as to be attachable to the fixing member,
A balloon mounting window as an opening provided in the probe body and opened to be able to store the balloon attached to the fixing member,
Fluid injection means for injecting the fluid into the injection conduit so that the balloon can be inflated from the balloon mounting window toward the outside of the probe main body,
A probe comprising:

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