KR20150136379A - Catheter for immobilization of prostate internal motion - Google Patents

Catheter for immobilization of prostate internal motion Download PDF

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Publication number
KR20150136379A
KR20150136379A KR1020140063798A KR20140063798A KR20150136379A KR 20150136379 A KR20150136379 A KR 20150136379A KR 1020140063798 A KR1020140063798 A KR 1020140063798A KR 20140063798 A KR20140063798 A KR 20140063798A KR 20150136379 A KR20150136379 A KR 20150136379A
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KR
South Korea
Prior art keywords
prostate
catheter
balloon portion
radiation
balloon
Prior art date
Application number
KR1020140063798A
Other languages
Korean (ko)
Inventor
이제범
Original Assignee
이제범
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 이제범 filed Critical 이제범
Priority to KR1020140063798A priority Critical patent/KR20150136379A/en
Priority to PCT/KR2015/001553 priority patent/WO2015182853A1/en
Publication of KR20150136379A publication Critical patent/KR20150136379A/en

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/10—Balloon catheters
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M29/00—Dilators with or without means for introducing media, e.g. remedies
    • A61M29/02—Dilators made of swellable material

Abstract

The present invention relates to a catheter for fixing a prostate. Provided is the catheter for fixing a prostate which is inserted into a rectum to fix a movement of the prostate during a radiation treatment of a prostate cancer, has a balloon portion for fixing the prostate in a front end portion, is able to detect the amount of radiation in the balloon portion, and is able to exactly illuminate a location of the balloon portion, thereby increasing an accuracy of a procedure. When applying the present invention, the catheter for fixing a prostate can let the balloon portion be entered into a location exactly matched with the location of the prostate which is different per patient, and make the balloon portion be expanded. Accordingly, the movement of the prostate can be minimized. Fundamentally, the catheter can prevent radiation from being exposed to an organ except the prostate or a cell. In addition, the catheter can exactly give a checkup about a condition of the patient by being capable of detecting the amount of radiation through a glass dosimeter attached into the balloon portion.

Description

[0001] CATHETER FOR IMMOBILIZATION OF PROSTATE INTERNAL MOTION [0002]

The present invention relates to a catheter for securing a prostate, and more particularly, to a catheter for securing a prostate, which is inserted into a rectum to fix the movement of the prostate during radiation therapy of the prostate cancer, has a balloon portion for fixing the prostate, The present invention relates to a catheter for securing a prostate, which is capable of detecting an amount of exposure to a prostate, and accurately displaying the position of the balloon portion, thereby improving the accuracy of the procedure.

As is well known, the prostate gland is a biliary-sized organ of the size of a biliary tree that exists only in males. It consists of a vaginal clot-like structure and a fibrous tissue surrounding it. It is fixed in the bladder neck and surrounds the urethra below the bladder as a donut shape.

In recent years, as the diet has been westernized and the consumption of meat-based foods has increased, prostate cancer among middle-aged men has rapidly increased. Prostate cancer (6.2%) is the fifth highest rate of cancer among males (30.3%), followed by lung cancer (15.1%), colon cancer (14.4%) and liver cancer (13.1%). In addition, the cancer growth rate of prostate cancer (6.2%) is the highest at 12.3%.

These prostate cancers progress slowly and do not show any specific symptoms, so they are mostly found at the end of the day and mortality is second only to lung cancer.

Methods for treatment of prostate cancer include atmospheric observation, radical prostatectomy, radiotherapy, and cryotherapy. Recently, according to the development of medical science, it has been reported that radiation therapy is equivalent or more effective than the above-mentioned surgical method, and thus it is a tendency to use radiation for the treatment of prostate cancer.

However, although the treatment of prostate cancer using radiation has its own effect, when the radiation is applied to healthy normal tissues around the tumor, the site is exposed to radioactivity, which may cause serious side effects.

That is, adenocarcinoma of the prostate usually occurs in the posterior portion of the prostate, which is very close to the rectal wall. And because the prostate gland moved during treatment, the radiation had to be extensively examined, in which case most of the rectal wall adjacent to the prostate was exposed to radiation. The following description will be made based on the attached drawings.

As shown in FIG. 1, during radiation therapy for prostate cancer treatment, radiation was exposed to most of the rectum including the prostate, which may result in fibrosis of the rectal wall.

In recent years, a mucosal radiotherapy has been carried out in which the side effects are eliminated and the therapeutic effect is enhanced. Proximal radiation therapy is expected to be widely used as a treatment method for prostate cancer in the future because of its high success rate and patient satisfaction.

This proximal radiotherapy has a principle that the isotope intensively destroys the cancer tissue of the tumor by injecting a seed containing an isotope, which is a radiation-emitting substance, in the vicinity of the tumor and the tumor in the prostate gland. This treatment is especially useful for patients who are difficult to operate due to the elderly or heart disease, and it is attracting attention as a treatment method that improves the quality of life of the patient because it can be treated without suffering incontinence or erectile dysfunction which is a typical side effect of the existing surgical treatment.

The prostate 8 is located at the portion of the urethra 4 located in the penis 6 and connected to the bladder 2 as shown in the accompanying drawings. The radiation seed 10 can be irradiated by inserting a plurality of radiation seeds 10 into the prostate 8. The radiation seed 10 is implanted through a radiation seed insertion needle (not shown) .

However, such a proximity radiotherapy method has a problem that the seed 10 can move to an undesired position, and each seed 10 must be spaced from each other so that uniform irradiation is possible. However, . In addition, such a proximal radiotherapy method has a problem in that it is necessary to observe and correct the positional shift of the seed 10 in the prostate gland through regular or non-periodic imaging after the procedure.

Therefore, it is possible to reduce the rectal wall included in the treatment area (radiation-exposed area) in the radiation treatment of prostate cancer, thereby minimizing adverse effects caused by exposure of the normal tissue to radiation, The means were desperately required.

In addition, it is necessary to be able to judge the extent of exposure to nearby tissues and whether the actual exposure has occurred in nearby tissues during radiation therapy of prostate cancer, but it is difficult to know before the additional examination, and additional examination requires time and cost There was a problem that it was not economical.

On the other hand, even if an attempt is made to fix the prostate gland in order to reduce the amount of radiation exposure, there is a problem in that it is not possible to know at what position to fix the prostate gland.

SUMMARY OF THE INVENTION The present invention has been made in view of the circumstances of the prior art described above, and it is an object of the present invention to provide a balloon for inserting prostate into a rectum to fix prostate movement during the radiation treatment of prostate cancer, And an object of the present invention is to provide a catheter for securing a prostate that can accurately detect the position of a balloon portion and enhance the accuracy of a procedure.

In order to achieve the above object, according to a preferred embodiment of the present invention, there is provided a prostate gland comprising: a rotatable portion (22) for decontaminating a foreign substance inside the prostate; A valve portion 24 into which physiological saline or compressed air can be injected; A cylindrical tube portion 26 coupled to the front end of the valve portion 24 and the valve portion 24 and having an injection path 30 for moving physiological saline or compressed air in the longitudinal direction; The distal end of the injection path 30 communicates with the inside of the rectum and is filled with the saline solution or the compressed air. An inflated balloon portion 28; And a glass dosimeter joining portion 36 formed on the central portion of the balloon portion 28 and coupled to a glass dosimeter for detecting a radiation exposure amount.

Preferably, the glass dosimeter coupling portion 36 is formed on the outer surface of the balloon portion 28 in plurality.

Preferably, the balloon portion 28 is further provided with a position sensing portion 38 capable of sensing the tube position at four corners of its outer surface.

Preferably, the position sensing portion 38 is coated with a contrast agent that does not project X-rays.

The prostate-fixing catheter according to the present invention can inflate the balloon portion to a position that exactly matches the position of the different prostate for each patient, thereby minimizing the movement of the prostate gland, and ultimately, It is possible to prevent radiation from being exposed. Further, since the amount of exposure can be detected through the glass dosimeter attached to the balloon portion, there is an advantage that it is possible to accurately check the condition of the patient.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a diagram showing a state of radiation therapy for prostate,
2 is a view showing a configuration of a catheter for fixing prostate according to an embodiment of the present invention,
FIG. 3 is a plan view showing a balloon unit included in a prostate-fixing catheter according to an embodiment of the present invention;
FIG. 4 is a photograph showing a state where a prostate is fixed by inserting a prostate fixing catheter according to an embodiment of the present invention.

Hereinafter, the present invention will be described in detail with reference to the drawings.

3 is a plan view showing a balloon unit included in a prostate fixing catheter according to an embodiment of the present invention. FIG. 4 is a cross- 6 is a photograph showing a state in which a prostate is fixed by inserting a prostate fixing catheter according to an embodiment of the present invention.

Referring to the drawings, a prostate-fixing catheter 20 according to an embodiment of the present invention is inserted into a rectum to fix the movement of the prostate during radiation treatment of the prostate cancer, and a balloon portion The amount of the dose can be detected at the balloon portion, and the position of the balloon portion can be accurately displayed, thereby improving the accuracy of the procedure.

In more detail, a prostate-fixing catheter 20 according to an embodiment of the present invention includes a rotatable portion 22 for rotting a foreign body inside the prostate gland; A valve portion 24 into which physiological saline or compressed air can be injected; A cylindrical tube portion 26 coupled to the front end of the valve portion 24 and the valve portion 24 and having an injection path 30 for moving physiological saline or compressed air in the longitudinal direction; The distal end of the injection path 30 communicates with the inside of the rectum and is filled with the saline solution or the compressed air. And an inflated balloon portion (28).

The prostate-fixing catheter 20 will be described in more detail below.

The distal portion 22 is open at its front end and distal end, respectively, so that a support (not shown) for supporting the catheter when the catheter is inserted into the rectum can pass therethrough.

The valve portion 24 is formed in a shape of a syringe for injecting air or physiological saline into the balloon portion 28. [ Means for coupling the means.

The tube portion 26 is formed in a hollow shape having a predetermined length and is made of a rubber material having excellent elasticity and elasticity. Means for determining the insertion depth of the balloon portion 28 is required on the outer circumferential surface on one side of the tube portion 26. Thus, the position of the prostate of the patient, that is, the position at which the balloon 28 is to be inflated should be grasped as the depth of the rectum, and the means will be described in detail below.

The balloon portion 28 is expanded by the compressed air injected through the valve portion 24 in a state of being inserted into the rectum to expand the rectum. The balloon portion 28 is made of a soft rubber material or a synthetic resin material, ) At one end thereof.

However, the balloon portion 28 may be coupled to the tube portion 26 by various coupling methods. For example, there may be a screw fastening method, a clip fastening method, and a high-frequency fusion fastening method. At this time, it is natural that air must be tightly coupled so as to prevent air from leaking to the joint portion between the tube portion 26 and the balloon portion 28.

And a glass dosimeter joining unit 36 coupled to a glass dosimeter (not shown) for detecting the amount of radiation exposure formed on the central portion of the balloon unit 28.

That is, the glass dosimeter can be used as a well-known radiation dosimeter to measure whether or not the target cancer cells or cancer cells are accurately irradiated to the organ side on which the target cancer cells are expressed. In the present invention, The amount of radiation exposed to the inside of the rectum can be measured, so that it is possible to accurately determine the state of the patient's exposure.

Preferably, the glass dosimeter can be easily attached to and detached from the glass dosimeter joining unit 36.

On the other hand, it is advantageous for the prostate to be fixed because the position of the prostate gland is slightly different for each patient, so that the balloon 28, which is inserted into the rectum of the patient and inflated to fix the prostate gland, enters the position corresponding to the prostate gland.

Accordingly, the prostate fixing catheter 20 according to an embodiment of the present invention can accurately position the balloon portion 28 at the position of the prostate.

That is, the balloon unit 28 further includes a position sensing unit 38 for sensing the tube position at four corners of the outer surface of the balloon unit 28. The position sensing unit 38 senses the X- Respectively.

Therefore, when the balloon unit 28 and the tube unit 26 are inserted into the rectum and the balloon unit 28 is imaged using a separate imaging device, the various organs of the patient, particularly the prostate, are displayed At the same time, the position sensing unit 38 is displayed in a different form and color from neighboring organs. Thus, the medical staff can accurately grasp whether the position of the balloon portion 28 coincides with the position of the prostate gland.

Accordingly, the prostate-fixing catheter 20 according to the embodiment of the present invention can inflate and inflate the balloon portion 28 to a position that exactly matches the position of the different prostate for each patient, So that it can be minimized.

Thus, it is possible to prevent radiation from being ultimately irradiated to organs or cells other than the prostate gland.

Meanwhile, the catheter for securing the prostate according to the embodiment of the present invention is not limited to the above-described embodiment, but can be variously modified within the scope not departing from the technical gist of the present invention.

20: catheter for securing the prostate, 22:
24: valve portion, 26: tube portion,
28: balloon portion, 30: injection path,
32: Support path for insertion.

Claims (4)

A rotator (22) for decontaminating a foreign body inside the prostate;
A valve portion 24 into which physiological saline or compressed air can be injected;
A cylindrical tube portion 26 coupled to the front end of the valve portion 24 and the valve portion 24 and having an injection path 30 for moving physiological saline or compressed air in the longitudinal direction;
The distal end of the injection path 30 communicates with the inside of the rectum and is filled with the saline solution or the compressed air. An inflated balloon portion 28;
And a glass dosimeter joining portion (36) formed on a central portion of the balloon portion (28) and coupled to a glass dosimeter for detecting a radiation dose. The method according to claim 1,
Wherein the plurality of glass dosimeter joining portions (36) are formed on the outer surface of the balloon portion (28). The method according to claim 1,
Wherein the balloon portion (28) is further provided with a position sensing portion (38) capable of sensing the tube position at four corners of its outer surface. The method of claim 3,
Wherein the position sensing unit (38) is coated with a contrast agent that does not project X-rays.
KR1020140063798A 2014-05-27 2014-05-27 Catheter for immobilization of prostate internal motion KR20150136379A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020140063798A KR20150136379A (en) 2014-05-27 2014-05-27 Catheter for immobilization of prostate internal motion
PCT/KR2015/001553 WO2015182853A1 (en) 2014-05-27 2015-02-16 Catheter for fixing prostate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020140063798A KR20150136379A (en) 2014-05-27 2014-05-27 Catheter for immobilization of prostate internal motion

Publications (1)

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KR20150136379A true KR20150136379A (en) 2015-12-07

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WO (1) WO2015182853A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018131784A1 (en) * 2017-01-10 2018-07-19 경희대학교산학협력단 Body-insertable radiation dose measurement device
KR20220162507A (en) * 2021-06-01 2022-12-08 김재경 Ballon cathether for medical treatment

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB201801730D0 (en) 2018-02-02 2018-03-21 Trueinvivo Ltd Device and Method for Measuring Radiation Dosage
CN112999532A (en) * 2021-03-16 2021-06-22 融仁(杭州)医疗器械有限公司 Prostate and rectum isolating device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997028840A1 (en) * 1996-02-12 1997-08-14 Mentor Urology, Inc. Prostatic tissue expander
JP2000070375A (en) * 1998-09-01 2000-03-07 Togo Medikit Kk Marker laminated balloon catheter
KR100921342B1 (en) * 2007-08-03 2009-10-13 사회복지법인 삼성생명공익재단 Measuring device for amount of radioactive rays
KR101384700B1 (en) * 2013-10-31 2014-04-14 연세대학교 원주산학협력단 Triple endorectal ballooning system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018131784A1 (en) * 2017-01-10 2018-07-19 경희대학교산학협력단 Body-insertable radiation dose measurement device
KR20220162507A (en) * 2021-06-01 2022-12-08 김재경 Ballon cathether for medical treatment

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