Urethral catheterization device for bladder perfusion chemotherapy
By designing a catheter device with a drug push mechanism, the problems of drug retention and leakage during bladder perfusion chemotherapy are solved, and the efficient utilization and safety of drug operation are achieved.
Patent Information
- Application Number
- CN202421408304.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-20
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-06-20
AI Technical Summary
During bladder perfusion chemotherapy, repeated insertion and removal of traditional catheters and syringes lead to retention and leakage of chemotherapy drugs, causing drug waste and safety risks.
A catheter device including a catheter and a drug pushing mechanism is designed. The catheter has a one-way valve and a drug outlet. The drug pushing mechanism includes an airbag, a catheter and a catheter check valve. The retained chemotherapy drug is pushed into the bladder through the compression of the airbag to avoid repeated insertion and removal.
It effectively avoids leakage and waste of chemotherapy drugs, improves drug utilization, reduces operating steps, and ensures the safety of perfusionists and patients.
Smart Images
Figure CN222955740U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of medical devices, and particularly relates to a urinary catheter device for bladder perfusion chemotherapy. Background Art
[0002] When using traditional urinary catheters and syringes for bladder perfusion chemotherapy, usually a part of the chemotherapy drug remains in the urinary catheter. To push this part of the chemotherapy drug into the bladder, the traditional method is: pull out the syringe on the urinary catheter, after aspirating a certain amount of air in the syringe, then connect the syringe to the medicine inlet of the urinary catheter, and inject the air into the urinary catheter, and push the chemotherapy drug remaining in the urinary catheter into the bladder through the flow of air.
[0003] When pulling out the syringe using the traditional method, it is very easy to cause the chemotherapy drug to leak out of the urinary catheter. And the chemotherapy drugs used clinically all have varying degrees of toxic and side effects. These chemotherapy drugs can not only kill tumor cells, but also kill the cells of normal human tissues, especially the important immune defense systems of the human body such as blood and lymph tissues, and even damage the digestive tract, hematopoietic system, skin and mucosal reactions, nervous system, liver function, heart reaction, pulmonary toxicity reaction and renal function of the human body. However, if the chemotherapy drug remaining in the urinary catheter is not pushed into the bladder but the urinary catheter is directly discarded, the chemotherapy drug will also leak out when pulling out the urinary catheter, and at the same time, it will cause waste of the drug. Summary of the Utility Model
[0004] In view of the above-mentioned defects of the prior art, the technical problem to be solved by the utility model is to provide a urinary catheter device for bladder perfusion chemotherapy, which can avoid repeatedly inserting and pulling out the syringe during the perfusion process, and at the same time avoid the leakage and waste caused by the chemotherapy drug remaining in the urinary catheter.
[0005] To achieve the above object, the utility model provides a urinary catheter device for bladder perfusion chemotherapy, one end of which is connected to a syringe, and includes a urinary catheter and a medicine-pushing mechanism. The urinary catheter includes a medicine inlet and a urinary catheter one-way valve. The medicine inlet is used to connect to the syringe. The urinary catheter one-way valve is arranged on the urinary catheter and is close to the medicine inlet, and is used to prevent air or medicine from flowing out reversely from the medicine inlet of the urinary catheter. The medicine-pushing mechanism is connected to the urinary catheter, and the medicine-pushing mechanism includes an airbag, a catheter and a catheter one-way valve. One end of the catheter is communicated with the urinary catheter, and the other end is communicated with the airbag. The catheter one-way valve is arranged on the catheter and is used to prevent air or medicine from flowing reversely from the urinary catheter into the airbag.
[0006] Further, the urinary catheter further includes a medicine outlet, the medicine outlet is far from the syringe, and one end of the catheter communicated with the urinary catheter is close to the urinary catheter one-way valve and is located between the medicine outlet and the urinary catheter one-way valve.
[0007] Furthermore, the material of the airbag is silicone.
[0008] Furthermore, the volume of the airbag is the same as the volume of the inner cavity of the catheter.
[0009] Furthermore, the medicine inlet of the catheter is elastic and can elastically fit with the interface of the syringe.
[0010] As described above, the urinary catheter device for bladder perfusion chemotherapy involved in the present utility model has the following beneficial effects:
[0011] By setting the medicine pushing mechanism, after the syringe finishes injecting the chemotherapy drug, by compressing the airbag, the chemotherapy drug remaining in the catheter can be pushed into the bladder, avoiding secondary insertion and removal of the syringe, ensuring the utilization rate of the perfusion chemotherapy drug, preventing leakage and waste of the chemotherapy drug, and ensuring the safety of the perfuser and the patient. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a schematic structural diagram of the catheter and the medicine pushing mechanism in the present utility model.
[0013] DESCRIPTION OF THE REFERENCE NUMERALS IN THE DRAWINGS
[0014] 1. Medicine pushing mechanism, 101. Airbag, 102. Catheter, 103. Catheter one-way valve, 2. Urinary catheter, 201. Medicine inlet, 202. Catheter one-way valve, 203. Medicine outlet, 3. Syringe. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0015] The following further describes in detail the specific embodiments of the present utility model with reference to the drawings. These embodiments are only used to illustrate the present utility model and are not intended to limit the present utility model.
[0016] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.
[0017] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0018] In addition, in the description of the present utility model, unless otherwise stated, the meaning of "a plurality of" is two or more.
[0019] See Figure 1 , the present utility model provides a urinary catheterization device for bladder perfusion chemotherapy, one end of which is connected to a syringe 3, and it includes a urinary catheter 2 and a drug pushing mechanism 1. The urinary catheter 2 includes a drug inlet 201 and a one-way valve 202 of the urinary catheter. The drug inlet 201 is used to connect to the syringe 3. The one-way valve 202 of the urinary catheter is arranged on the urinary catheter 2 and is arranged as close as possible to the drug inlet 201, and is used to prevent air or drugs from flowing out reversely from the drug inlet 201 of the urinary catheter 2 and entering the syringe 3. The drug pushing mechanism 1 is connected to the urinary catheter 2 and includes an airbag 101, a catheter 102, and a one-way valve 103 of the catheter. One end of the catheter 102 is communicated with the urinary catheter 2, and the other end is communicated with the airbag 101. The one-way valve 103 of the catheter is arranged on the catheter 102 and is used to prevent air or drugs from flowing reversely from the urinary catheter 2 into the airbag 101.
[0020] The basic working principle of the urinary catheterization device for bladder perfusion chemotherapy involved in the present utility model is as follows: When using the urinary catheter 2 and the syringe 3 for bladder perfusion chemotherapy, when the chemotherapy drug remains in the urinary catheter 2, press the airbag 101, and the air in the airbag 101 enters the urinary catheter 2 through the catheter 102, and the chemotherapy drug remaining in the urinary catheter 2 is pushed into the bladder through the flow of air, avoiding the risk of chemotherapy drug leakage that may be caused by removing the syringe 3 during bladder perfusion chemotherapy, ensuring the safety of the perfuser and the patient, and at the same time avoiding the waste of chemotherapy drugs caused by the retention of chemotherapy drugs in the urinary catheter 2. At the same time, by setting the one-way valve 202 of the urinary catheter, it can prevent air or chemotherapy drugs from flowing out reversely from the drug inlet 201 of the urinary catheter 2 and entering the syringe 3. By setting the one-way valve 103 of the catheter, it can prevent air or chemotherapy drugs from flowing reversely from the catheter 102 into the airbag 101.
[0021] See Figure 1 , the following further illustrates the present utility model with a specific embodiment:
[0022] In this embodiment, see Figure 1, As a preferred design, the urinary catheter 2 further includes a medicine outlet 203. The medicine outlet 203 is far away from the syringe 3. One end of the catheter 102 connected to the urinary catheter 2 is arranged as close as possible to the one-way valve 202 of the urinary catheter and is located between the medicine outlet 203 and the one-way valve 202 of the urinary catheter. When the airbag 101 is pressed, the air in the airbag 101 enters the urinary catheter 2 from the one-way valve 202 of the urinary catheter close to the urinary catheter 2 through the catheter 102, which is convenient for pushing the chemotherapy drug retained in the urinary catheter 2 towards the medicine outlet 203 of the urinary catheter 2, and then into the bladder. At the same time, due to the existence of the one-way valve 202 of the urinary catheter and the fact that the syringe 3 is still connected to the medicine inlet 201 of the urinary catheter 2, it can further prevent the chemotherapy drug from being pushed back by air to the one-way valve 202 of the urinary catheter, and completely avoid the chemotherapy drug from being pushed back into the syringe 3.
[0023] In this embodiment, refer to Figure 1 , As a preferred design, the material of the airbag 101 is silicone, which is non-irritating, non-toxic, and non-allergic to the human body, and is convenient for processing and forming.
[0024] In this embodiment, refer to Figure 1 , As a preferred design, the volume of the airbag 101 is the same as the volume of the inner cavity of the urinary catheter 2. By squeezing the airbag 101 only once, all the chemotherapy drugs retained in the urinary catheter 2 can be pushed into the bladder, and at the same time, a large amount of gas can be prevented from entering the bladder, effectively reducing the operation steps and facilitating the operation of the staff.
[0025] In this embodiment, refer to Figure 1 , As a preferred design, the medicine inlet 201 of the urinary catheter 2 is elastic and can elastically fit with the interface of the syringe 3, having good airtightness and being able to prevent the chemotherapy drug from leaking out.
[0026] As can be seen from the above, the urinary catheter device for bladder perfusion chemotherapy of the present utility model has the following beneficial effects:
[0027] By setting the medicine pushing mechanism 1, after the syringe 3 finishes injecting the chemotherapy drug, by pressing the airbag 101, the chemotherapy drug retained in the urinary catheter 2 can be pushed into the bladder, avoiding secondary insertion and removal of the syringe 3, ensuring the utilization rate of the perfusion chemotherapy drug, preventing the leakage and waste of the chemotherapy drug, and ensuring the safety of the perfuser and the patient.
[0028] In summary, the present utility model effectively overcomes various shortcomings in the prior art and has high industrial utilization value.
[0029] The above embodiments are only illustrative of the principles and effects of the present utility model, and are not intended to limit the present utility model. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present utility model. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the present utility model should still be covered by the claims of the present utility model.
Claims
1. A urinary catheterization device for bladder instillation chemotherapy, one end of which is connected to a syringe (3), characterized in that: The invention comprises a urinary catheter (2) and a medicine pushing mechanism (1), wherein the urinary catheter (2) comprises a medicine inlet (201) and a urinary catheter one-way valve (202), wherein the medicine inlet (201) is used to be connected to a syringe (3), and the urinary catheter one-way valve (202) is arranged on the urinary catheter (2) and close to the medicine inlet (201), and is used to prevent air or medicine from flowing out of the medicine inlet (201) of the urinary catheter (2) in the reverse direction; and the medicine pushing mechanism (1) comprises a medicine inlet (201) and a medicine pushing mechanism (202). The drug pushing mechanism (1) is connected to a urinary catheter (2), and comprises an air bag (101), a catheter (102) and a catheter one-way valve (103); one end of the catheter (102) is connected to the urinary catheter (2), and the other end is connected to the air bag (101); the catheter one-way valve (103) is arranged on the catheter (102) and is used to prevent air or drugs from flowing back from the urinary catheter (2) to the air bag (101).
2. The urinary catheterization device for bladder instillation chemotherapy according to claim 1, characterized in that: The urinary catheter (2) further comprises a drug outlet (203), wherein the drug outlet (203) is far away from the syringe (3); one end of the catheter (102) connected to the urinary catheter (2) is arranged close to the urinary catheter one-way valve (202) and is located between the drug outlet (203) and the urinary catheter one-way valve (202).
3. The urinary catheterization device for bladder instillation chemotherapy according to claim 1, characterized in that: The material of the airbag (101) is silica gel.
4. The urinary catheterization device for bladder instillation chemotherapy according to claim 1, characterized in that: The volume of the air bag (101) is the same as the volume of the inner cavity of the urinary catheter (2).
5. The urinary catheterization device for bladder instillation chemotherapy according to claim 1, characterized in that: The drug inlet (201) of the urinary catheter (2) is elastic and can be elastically fitted with the interface of the syringe (3).