CN211050758U

CN211050758U - Bladder filling balancer used in pelvic tumor radiotherapy

Info

Publication number: CN211050758U
Application number: CN201922052454.4U
Authority: CN
Inventors: 梁菲菲; 王仁生; 张勇; 胡凯; 吴芳; 吕君
Original assignee: First Affiliated Hospital of Guangxi Medical University
Current assignee: First Affiliated Hospital of Guangxi Medical University
Priority date: 2019-11-25
Filing date: 2019-11-25
Publication date: 2020-07-21
Anticipated expiration: 2029-11-25

Abstract

The utility model provides a bladder filling balancer used in pelvic tumor radiotherapy, which consists of a catheter part, an infusion part and a liquid discharge part. The bladder filling balancer has simple structure and convenient use. When waiting in line before patient's radiotherapy, insert the bladder through patient's urethra earlier and fix with the front end of catheterization person in charge to add the bladder flush fluid in the infusion bottle, then adjust the pressure value of overflow valve, the bladder flush fluid makes the bladder fill rapidly in flowing into patient's bladder, and when the pressure in the bladder was too high, the overflow valve can be opened automatically, makes partial urine overflow to the urine collector in, the sufficient degree of bladder can remain a stable scope throughout. During radiotherapy, the infusion part can be removed, and only the catheter part and the drainage part are reserved. In the radiotherapy process, even patient self produces the urine volume, owing to be equipped with the overflow valve, the sufficient degree of patient's bladder still can remain stable to be favorable to realizing the accurate radiotherapy to the patient.

Description

Bladder filling balancer used in pelvic tumor radiotherapy

Technical Field

The utility model relates to a sufficient device of bladder specifically is a sufficient balancer of bladder that uses when pelvic cavity tumour radiotherapy belongs to medical instrument technical field.

Background

At present, patients with pelvic tumors such as cervical cancer and prostate cancer need to carry out external irradiation radiotherapy, and in view of the particularity of anatomical positions, the positions of the pelvic tumors are easily influenced by the rectum and the bladder, so that the radiotherapy accuracy is improved, the radiotherapy reaction of surrounding normal tissues is reduced, the patients need to carry out rectal emptying and bladder filling before radiotherapy positioning and radiotherapy each time, the rectal emptying is easy to realize, and the consistency of the bladder filling degree is difficult to guarantee during each radiotherapy. The bladder is a radiotherapy dose-volume effector organ, when a radiotherapy plan is designed, the bladder filling can increase the volume of the bladder, and the Clinical Target Volume (CTV) only comprises about 1/3 of the filled bladder volume when the radiotherapy target volume is sketched, so that the irradiated dose of the whole bladder can be obviously reduced, the incidence rate and the severity of radiation cystitis are reduced, and the bladder filling degree becomes a key factor influencing accurate radiotherapy.

At present, before radiotherapy and location of pelvic tumors and each radiotherapy, a patient is only prescribed to drink a certain amount of water before the radiotherapy, and the patient starts to arrange the radiotherapy and location and the radiotherapy after feeling urine, because the uncertainty of the urine output of the individual at different time and the feeling of the urine intention are different, and the radiotherapy positioning and the queuing waiting time before each radiotherapy are different, when CT positioning or CT Image Guidance (IGRT) is performed in radiotherapy, the bladder filling degree of a patient is usually found to be obviously different every time of radiotherapy, so that corresponding displacement also occurs in a target area, therefore, larger errors are caused, and only the target area range can be enlarged during radiotherapy plan design, so that the true accurate radiotherapy can not be realized by enlarging the target area range, and the peripheral normal organs are easily subjected to radioactive injury, so that the incidence and the severity of the radioactive cystitis and the radioactive proctitis are obviously increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a sufficient balancer of bladder that uses when pelvic cavity tumour radiotherapy to the realization is when radiotherapy at every turn, and patient's sufficient degree of bladder keeps unanimous, thereby is favorable to realizing accurate radiotherapy.

The utility model discloses the concrete technical scheme who adopts as follows:

a bladder filling balancer used in radiotherapy of pelvic tumor comprises a catheter part, a transfusion part and a drainage part.

The catheter part adopts a three-cavity single-bag catheter structure and is provided with a catheter main pipe, a pipe head at the front end of the catheter main pipe is closed, a urine inlet hole is formed in the side wall of a pipe body close to the pipe head, the outside of the side wall of the front end pipe body of the catheter main pipe below the urine inlet hole is fixedly connected with a surrounding air bag, and an independent inflation branch and an independent infusion branch are arranged inside the pipe body of the catheter main pipe; the front port of the inflation branch is communicated with the air bag, the rear end of the inflation branch extends outwards from the side wall of the catheter body at the rear end of the urethral catheterization main pipe, and the rear port of the inflation branch is provided with an inflation soft valve; the front end opening of the infusion branch is exposed outwards from the side wall of the front end pipe body of the urethral catheterization main pipe, the front end opening of the infusion branch is positioned at the front end of the air bag, the rear end of the infusion branch extends outwards from the side wall of the rear end pipe body of the urethral catheterization main pipe, an infusion connector is arranged at the rear end opening of the infusion branch, and a liquid stopping clamp is arranged outside the rear end pipe body of the infusion branch.

The infusion part adopts the basic structure of a conventional infusion device, an infusion bottle is arranged above the infusion part, an infusion pipeline and an air inlet pipe with an air filter are connected below the infusion bottle, a dropping funnel and a flow regulator are further arranged on the infusion pipeline, and the lower port of the infusion pipeline is connected to an infusion connecting port of an infusion branch of the catheter part.

The liquid drainage part consists of an overflow valve, a liquid drainage pipeline and a urine collector, wherein the overflow valve adopts a miniature low-pressure liquid overflow valve with a pressure indicator and capable of adjusting overflow pressure, a liquid inlet of the overflow valve is connected with a rear end pipe orifice of the catheter part urine guide main pipe, a liquid outlet of the overflow valve is connected with one end of the liquid drainage pipeline, the other end of the liquid drainage pipeline is connected to the urine collector, and the urine collector is a liquid collection container with normal pressure.

Furthermore, 4 urine inlet holes of the urethral catheterization main pipe are uniformly distributed along the circumferential side wall of the body of the urethral catheterization main pipe, so that urine in the bladder can be conveniently discharged from the urethral catheterization main pipe.

Furthermore, the shape of the air bag can be designed into a spherical shape or an ellipsoidal shape so as to form a better bladder closing effect and prevent urine in the bladder from leaking out of the urethra without passing through the urethral catheter.

Further, the urine collector can adopt a disposable liquid collecting bag with normal pressure.

The bladder filling balancer has simple structure and convenient use. When waiting in line before patient's radiotherapy, insert the bladder through patient's urethra earlier and fix with the front end of catheterization person in charge, and add the bladder flush fluid in the infusion bottle, then the pressure value of regulation overflow valve, the bladder flush fluid flows into patient's bladder through the infusion pipeline, make the bladder fill rapidly, because bladder and overflow valve are connected to the both ends part of catheterization person in charge, consequently pressure in the bladder can realize balancing with the settlement pressure of overflow valve, when the pressure in the bladder is too high, the overflow valve can open automatically, make partial urine overflow to the urine collector in, thereby make the filling degree of bladder can remain in a stable scope throughout. During radiotherapy, the infusion part can be removed, and only the catheter part and the drainage part are reserved. In the radiotherapy process, even patient self produces the urine volume, owing to be equipped with the overflow valve, the sufficient degree of patient's bladder still can remain stable to be favorable to realizing the accurate radiotherapy to the patient. In addition, when the bladder irrigation liquid is used for filling the bladder of a patient, the bladder can be irrigated and disinfected, so that cystitis is prevented.

Drawings

Fig. 1 is a schematic diagram of the overall structure of the bladder filling balancer of the present invention.

Fig. 2 is a partially enlarged view of a in fig. 1.

In the figure: 1-a main catheter, 2-a urine inlet, 3-an air bag, 4-an inflation branch, 5-an infusion branch, 6-an inflation soft valve, 7-an infusion connector, 8-a liquid stopping clamp, 9-an infusion bottle, 10-an infusion pipeline, 11-an air inlet pipe, 12-a dropping funnel, 13-a flow regulator, 14-an overflow valve, 15-a drainage pipeline and 16-a urine collector.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

As shown in figures 1-2, the bladder filling balancer comprises a catheter section, an infusion section and a drainage section.

The catheter part adopts a three-cavity single-bag catheter structure and is provided with a catheter main pipe 1, the front end of the catheter main pipe 1 is closed, the side wall of the catheter body close to the pipe head is provided with 4 urine inlet holes 2, and the 4 urine inlet holes 2 are uniformly distributed along the circumferential side wall of the catheter body of the catheter main pipe 1; the outer side of the side wall of the front end pipe body of the urethral catheterization main pipe 1 below the urine inlet hole 2 is fixedly connected with a surrounding air bag 3, and the shape of the air bag 3 can be designed into a spherical shape or an ellipsoidal shape; an independent inflation branch 4 and an independent infusion branch 5 are arranged inside the catheter body of the urethral catheterization main pipe 1; the front port of the inflation branch 4 is communicated with the air bag 3, the rear end of the inflation branch 4 extends outwards from the side wall of the tube body at the rear end of the catheter main tube 1, and the rear port of the inflation branch 4 is provided with an inflation soft valve 6; the front end opening of the infusion branch 5 is exposed outwards from the side wall of the front end pipe body of the catheter main pipe 1, the front end opening of the infusion branch 5 is positioned at the front end of the air bag 3, the rear end of the infusion branch 5 extends outwards from the side wall of the rear end pipe body of the catheter main pipe 1, an infusion connector 7 is arranged at the rear end opening of the infusion branch 5, and a liquid stopping clamp 8 is further arranged outside the rear end pipe body of the infusion branch 5.

The infusion part adopts the basic structure of a conventional infusion device, an infusion bottle 9 is arranged above the infusion part, an infusion pipeline 10 and an air inlet pipe 11 with an air filter are connected below the infusion bottle 9, a dropping funnel 12 and a flow regulator 13 are further arranged on the infusion pipeline 10, and the lower port of the infusion pipeline 10 is connected to an infusion connecting port 7 of an infusion branch 5 of the catheter part.

The liquid drainage part consists of an overflow valve 14, a liquid drainage pipeline 15 and a urine collector 16, wherein the overflow valve 14 adopts a miniature low-pressure liquid overflow valve with a pressure indicator and capable of adjusting overflow pressure, a liquid inlet of the overflow valve 14 is connected with a rear end pipe orifice of the catheter part urine guide main pipe 1, a liquid outlet of the overflow valve 14 is connected with one end of the liquid drainage pipeline 15, and the other end of the liquid drainage pipeline 15 is connected to the urine collector 16; the urine collector 16 is a liquid collecting container with normal pressure, and can adopt a disposable liquid collecting bag with normal pressure.

The using method of the bladder filling balancer comprises the following steps: when patients wait in line before radiotherapy, the front end of the main catheter 1 is inserted into the bladder through the urethra of the patients, and air or sterile water is injected into the air bag 3 by the injector through the inflating soft valve 6 and the inflating branch 4, so that the air bag 3 is expanded and clamped at the outlet of the bladder; after bladder flushing fluid is added into the infusion bottle 9, the bladder flushing fluid is hung by an infusion rod in an elevating mode, and then the pressure value of the overflow valve 14 is adjusted. Bladder irrigation fluid in the infusion bottle 9 flows into the bladder of the patient through the infusion pipeline 10 and the infusion branch 5, so that the bladder is quickly filled, the two end parts of the urethral catheterization main pipe 1 are connected with the bladder and the overflow valve 14, therefore, the pressure in the bladder and the set pressure of the overflow valve 14 can be balanced, when the pressure in the bladder is too high, the overflow valve 14 can be automatically opened, part of urine overflows, the overflowing urine flows into the urine collector 16 through the liquid discharge pipeline 15 to be collected, and the filling degree of the bladder can be always kept in a stable range. During radiotherapy, the infusion part can be removed, the liquid stopping clamp 8 of the infusion branch 5 is put on the shelf, and only the catheter part and the liquid drainage part are reserved. In the radiotherapy process, even if the patient produces the urine volume, the bladder filling degree of the patient can still be kept stable due to the overflow valve 14, so that the bladder filling degree of the patient can be kept consistent as long as the pressure value of the overflow valve 14 set during radiotherapy at every time is kept consistent, and accurate radiotherapy is facilitated.

The above-mentioned drawings are only exemplary embodiments of the present invention and are not intended to limit the present invention, and any modifications or equivalent substitutions and improvements made within the spirit and principles of the present invention should be included within the scope of the present invention.

Claims

1. A bladder filling balancer used in radiotherapy of pelvic tumors is characterized in that: the bladder filling balancer consists of a catheter part, a transfusion part and a drainage part;

the catheter part adopts a three-cavity single-bag catheter structure and is provided with a catheter main pipe, a pipe head at the front end of the catheter main pipe is closed, a urine inlet hole is formed in the side wall of a pipe body close to the pipe head, the outside of the side wall of the front end pipe body of the catheter main pipe below the urine inlet hole is fixedly connected with a surrounding air bag, and an independent inflation branch and an independent infusion branch are arranged inside the pipe body of the catheter main pipe; the front port of the inflation branch is communicated with the air bag, the rear end of the inflation branch extends outwards from the side wall of the catheter body at the rear end of the urethral catheterization main pipe, and the rear port of the inflation branch is provided with an inflation soft valve; the front end opening of the infusion branch is exposed outwards from the side wall of the front end pipe body of the urethral catheterization main pipe, the front end opening of the infusion branch is positioned at the front end of the air bag, the rear end of the infusion branch extends outwards from the side wall of the rear end pipe body of the urethral catheterization main pipe, the rear end opening of the infusion branch is provided with an infusion connector, and the outside of the rear end pipe body of the infusion branch is also provided with a liquid stopping clamp;

the infusion part adopts the basic structure of a conventional infusion device, an infusion bottle is arranged above the infusion part, an infusion pipeline and an air inlet pipe with an air filter are connected below the infusion bottle, a dropping funnel and a flow regulator are also arranged on the infusion pipeline, and the lower port of the infusion pipeline is connected to an infusion connecting port of an infusion branch of the catheter part;

2. The bladder filling balancer of claim 1, wherein: 4 urine inlet holes of the catheter main pipe are uniformly distributed along the circumferential side wall of the catheter body of the catheter main pipe.

3. The bladder filling balancer of claim 1, wherein: the shape of the air bag is spherical or ellipsoidal.

4. The bladder filling balancer of claim 1, wherein: the urine collector adopts a disposable liquid collecting bag with normal pressure.