Liquid medicine heating catheter for bladder perfusion

Abstract

The utility model discloses a liquid medicine heating catheter for bladder perfusion, and relates to the technical field of bladder perfusion. The heating device is mounted at one end of the outer side of the catheter and is inserted into the bladder of the patient along with the catheter; the heat insulation assembly is mounted on the outer side of the guide pipe and wraps the heating device; the balloon is adhered to the outer side of the catheter; the temperature sensor is installed on the guide pipe and located in the heat insulation assembly; the heating device is wrapped by the heat insulation assembly, temperature loss of the heating device is reduced, discomfort of the bladder of a patient caused by the temperature generated by the heating device can be avoided, the comfort of the patient is improved, and the heat insulation assembly can be detached so that the heating device can be conveniently wrapped and maintained; the heating device is arranged to heat flowing liquid medicine, and the situation that the temperature of flushing liquid or the liquid medicine is too low to stimulate the bladder is avoided.

Description

Technical Field

[0001] This utility model relates to the field of bladder irrigation technology, and in particular to a heating catheter for bladder irrigation. Background Technology

[0002] For bladder cancer patients, bladder instillation is an important treatment method. By injecting chemotherapy drugs or other drugs directly into the bladder, cancer cells that may remain in the bladder can be killed, reducing the recurrence rate of cancer.

[0003] In cold weather, the rinsing solution and medication may cause the bladder to reflexively contract muscles due to the low temperature, leading to spasms. In such cases, it is necessary to heat the rinsing solution and medication to improve the patient's safety and comfort.

[0004] Existing heating devices are usually fixedly installed on the outside of the catheter. This means that while heating the inside of the catheter, the area where the patient's bladder contacts the catheter is also heated, causing localized temperature increases in the patient's bladder and resulting in discomfort. Utility Model Content

[0005] This invention provides a heated catheter for bladder irrigation, which solves the problem in the prior art where heating devices heat not only the inside of the catheter but also the area where the patient's bladder contacts the catheter, causing localized temperature rise in the patient's bladder and resulting in discomfort.

[0006] The technical problem solved by this utility model is achieved by the following technical solution:

[0007] A bladder irrigation solution heating catheter, comprising:

[0008] catheter;

[0009] A heating device is installed at one end of the catheter and inserted into the patient's bladder along with the catheter;

[0010] A thermal insulation component is installed on the outside of the conduit and encloses the heating device;

[0011] A balloon, which is adhered to the outside of the catheter;

[0012] A temperature sensor is mounted on the conduit and located inside the insulation assembly.

[0013] Optionally, the heating device includes:

[0014] A resistance wire, which is spirally wound around the outside of a conduit;

[0015] The circuit is connected to the resistance wire and extends to the outside of the other end of the conduit;

[0016] The main power supply is fixed at the end of the circuit away from the resistance wire.

[0017] Optionally, the thermal insulation component includes:

[0018] A blocking ring, which is fixed to the outside of the conduit and separates the temperature sensor and the resistance wire;

[0019] A heat insulation ring, which is detachably fixed to the outside of the blocking ring;

[0020] Two sealing plates are provided and are fixed at the two ends of the insulation ring and bonded to the conduit.

[0021] Optionally, an airflow branch is fixedly installed at one end of the balloon, and the airflow branch extends toward the inlet of the catheter, with a sealing joint fixedly installed at the end of the airflow branch away from the balloon.

[0022] Optionally, a tee connector is fixedly installed at the other end of the catheter opening. A drug inlet pipe is fixedly installed at the upper end of the tee connector, and a water injection pipe is fixedly installed at the lower end of the tee connector. Pipe joints are fixedly installed at the openings of both the drug inlet pipe and the water injection pipe.

[0023] Optionally, a one-way valve may be detachably installed in the middle of both the drug inlet pipe and the water injection pipe.

[0024] Optionally, the pipe fitting includes:

[0025] A connector, which is fixed at the opening of a water injection pipe or a medicine inlet pipe;

[0026] A sealing gasket, which is bonded to the opening on the inner surface of the connector;

[0027] A clamping head, wherein multiple clamping heads are provided and fixed to the end of the receiving joint in a circular array;

[0028] A compression sleeve, which is slidably fitted onto the outside of the clamping head.

[0029] The beneficial effects of this utility model are:

[0030] The heating device heats the flowing medicine solution, preventing the rinsing solution or medicine solution from being too cold and irritating the bladder, which could cause reflexive muscle contraction and spasm.

[0031] By enclosing the heating device with heat insulation components, heat loss from the heating device is reduced, and the heat generated by the heating device can also prevent discomfort to the patient's bladder, thus improving the patient's comfort. In addition, the heat insulation components can be removed for easy maintenance of the heating device.

[0032] The temperature sensor extends into the inside of the catheter, enabling direct measurement of the temperature of the flowing flushing fluid or medicine. Based on the temperature feedback, the heating device is controlled to prevent the temperature of the flushing fluid or medicine from becoming too high or too low. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0034] Figure 1 This is a schematic diagram of the structure of this utility model;

[0035] Figure 2 This is a schematic diagram of the thermal insulation component structure of this utility model;

[0036] Figure 3 This is a schematic diagram of the airflow branch pipe structure of this utility model;

[0037] Figure 4 This is a schematic diagram of the pipe joint structure of this utility model.

[0038] In the diagram: 100, conduit; 110, tee fitting; 120, drug inlet pipe; 130, water injection pipe; 140, pipe fitting; 141, socket fitting; 142, gasket; 143, clamping head; 144, compression sleeve; 150, check valve;

[0039] 200. Heating device; 210. Resistance wire; 220. Circuit; 230. Main power supply;

[0040] 300. Thermal insulation component; 310. Barrier ring; 320. Thermal insulation ring; 33. Sealing plate;

[0041] 400. Balloon; 410. Airflow branch tube; 420. Sealing joint;

[0042] 500. Temperature sensor. Detailed Implementation

[0043] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below with reference to specific illustrations.

[0044] Reference Figure 1-4 The illustrated bladder irrigation solution heating catheter includes:

[0045] Catheter 100;

[0046] Heating device 200 is installed at one end of the outer side of catheter 100 and is inserted into the patient's bladder along with catheter 100;

[0047] Thermal insulation component 300 is installed on the outside of catheter 100 and wraps around heating device 200 to reduce the impact of heating device 200 on the patient's bladder;

[0048] The balloon 400 is attached to the outside of the catheter 100 and expands after being inflated with gas.

[0049] Temperature sensor 500 is mounted on conduit 100 and located inside insulation assembly 300.

[0050] The heating device 200 is wrapped around the outside of the conduit 100 and the power is turned on. The temperature sensor 500 is installed on the outside of the conduit 100 and extends into the inside of the conduit 100. Then, the heat insulation component 300 is sleeved on the outside of the heating device 200 and the temperature sensor 500 and bonded to the conduit 100.

[0051] Then it is inserted into the patient's bladder;

[0052] In this process, the catheter 100 is connected to an external negative pressure device, and the heating device 200 and temperature sensor 500 are activated. The flushing fluid or medicine will then enter the interior of the catheter 100. The heating device 200 heats the flushing fluid or medicine as it flows, and the temperature sensor 500 measures the temperature of the flushing fluid or medicine.

[0053] The heating device 200 heats the flowing liquid medicine to prevent the rinsing solution or liquid medicine from being too cold and irritating the bladder, which could cause reflexive muscle contraction and spasm.

[0054] The heating device 200 is wrapped by the heat insulation component 300, which reduces the heat loss of the heating device 200 and also prevents the heat generated by the heating device 200 from causing discomfort to the patient's bladder, thus improving the patient's comfort. In addition, the heat insulation component 300 can be disassembled for easy maintenance of the heating device 200.

[0055] The temperature sensor 500 extends into the interior of the conduit 100, enabling it to directly measure the temperature of the flowing flushing fluid or medicine, and control the heating device 200 based on the temperature feedback to prevent the temperature of the flushing fluid or medicine from being too high or too low.

[0056] The balloon 400, when inflated, can seal the opening during insertion, preventing the leakage of flushing fluid or medication.

[0057] In some embodiments of this invention, in order to heat the flushing fluid or medication flowing inside the catheter 100, refer to Figure 2 and Figure 3 As shown, the heating device 200 includes:

[0058] The resistance wire 210 is spirally wound around the outside of the conduit 100 and in contact with the conduit 100. A heat-conducting plate is provided at the position where the conduit 100 contacts the resistance wire 210, which is in contact with the rinsing liquid or medicine.

[0059] Line 220 is connected to resistance wire 210 and extends to the outside of the other end of conduit 100. Line 220 passes through conduit 100 and extends out of conduit 100 at the other end.

[0060] The main power supply 230 is fixed at the end of the line 220 away from the resistance wire 210.

[0061] Among them, the main power supply 230 is turned on, the control resistance wire 210 is started to heat the rinsing fluid or medicine, and the resistance wire 210 is energized according to the feedback of the temperature sensor 500.

[0062] The heating element 210 heats the rinsing fluid or medicine when energized, while the line 220 extends to the outside of the conduit 100 and connects to the main power supply 230.

[0063] The host power supply 230 provides power to the resistance wire 210 and controls the start or stop of the resistance wire 210.

[0064] In some embodiments of this utility model, in order to reduce the direct impact of the resistance wire 210 on the patient, refer to Figure 2 As shown, the thermal insulation component 300 includes:

[0065] The blocking ring 310 is fixed to the outside of the conduit 100 and separates the temperature sensor 500 and the resistance wire 210.

[0066] The insulation ring 320 is detachably fixed to the outside of the retaining ring 310;

[0067] There are two sealing plates 330, which are fixed at both ends of the insulation ring 320 and bonded to the conduit 100.

[0068] The resistance wire 210 is separated from the temperature sensor 500 by the setting of the blocking ring 310, so as to avoid mutual interference between the resistance wire 210 and the temperature sensor 500.

[0069] The resistance wire 210 is protected by the insulation ring 320, and the heat generated by the resistance wire 210 is blocked, so as to prevent the heat generated by the resistance wire 210 from directly affecting the patient's bladder.

[0070] The sealing plate 330 ensures the proper installation and fixation of the insulation ring 320, while sealing the openings at both ends of the insulation ring 320 to reduce heat loss.

[0071] In some embodiments of this invention, in order to inflate the balloon 400 with gas, refer to Figure 3 As shown, an airflow branch tube 410 is fixedly installed at one end of the balloon 400, and the airflow branch tube 410 extends toward the inlet of the catheter 100. A sealing joint 420 connected to an air pump is fixedly installed at the end of the airflow branch tube 410 away from the balloon 400.

[0072] In use, the sealing joint 420 is connected to an external air pump, and the air pump is started so that the air pump fills the inside of the balloon 400 with gas through the airflow branch pipe 410.

[0073] The airflow branch pipe 410 is connected to the balloon 400 and extends outward, allowing gas to be injected into the balloon 400.

[0074] The air pump is connected via a sealing joint 420, ensuring a tight seal at the connection.

[0075] In some embodiments of this utility model, in order to connect the catheter 100 to the negative pressure device, refer to Figure 3 As shown, a tee connector 110 is fixedly installed at the other end of the conduit 100. A drug inlet pipe 120 is fixedly installed at the upper end of the tee connector 110, and a water injection pipe 130 is fixedly installed at the lower end of the tee connector 110. Pipe joints 140 are fixedly installed at the openings of both the drug inlet pipe 120 and the water injection pipe 130.

[0076] The negative pressure devices for drug injection and water injection are connected to two pipe joints 140 respectively. When injecting drugs and water, the negative pressure devices are squeezed to push the flushing liquid or drug solution into the interior of the conduit 100.

[0077] The medicine inlet pipe 120, water injection pipe 130 and conduit 100 are connected by a three-way connector 110.

[0078] The drug inlet pipe 120 allows the drug solution to be transported into the catheter 100, and the water inlet pipe 130 allows the flushing solution to be transported into the catheter 100.

[0079] In some embodiments of this utility model, in order to restrict the flow direction of liquid inside the drug inlet pipe 120 and the water injection pipe 130, refer to Figure 3 As shown, a one-way valve 150 is detachably installed in the middle of both the drug inlet pipe 120 and the water injection pipe 130 to control the direction of liquid flow.

[0080] The one-way valve 150 prevents the flushing fluid from flowing along the drug inlet pipe 120 and the drug from flowing into the water injection pipe 130.

[0081] In some embodiments of this utility model, in order to ensure the proper installation and sealing of the negative pressure device, refer to Figure 4 As shown, pipe fitting 140 includes:

[0082] Socket 141 is fixed at the opening of water injection pipe 130 or medicine inlet pipe 120;

[0083] Sealing gasket 142 is bonded to the opening on the inner surface of the connector 141;

[0084] Clamping heads 143 are provided in multiples and fixed to the end of the receiving head 141 in a ring array, and are made of shape memory metal or deformable material.

[0085] The compression sleeve 144 is slidably sleeved on the outside of the clamping head 143.

[0086] During installation, the clamping head 143 is fitted onto the outlet of the negative pressure device, and then the squeezing sleeve 144 is slid to push the clamping head 143 to deform and clamp it onto the outlet of the negative pressure device.

[0087] The sealing gasket 142 ensures the sealing effect between the connector 141 and the outlet of the negative pressure device, thus preventing liquid leakage.

[0088] The clamping head 143 ensures the stability of the connection between the connector 141 and the outlet of the negative pressure device, and prevents the connector 141 from loosening under the action of external force.

[0089] The clamping head 143 is squeezed by the sliding of the compression sleeve 144, so that the clamping head 143 maintains the clamping force.

[0090] The working method of this utility model:

[0091] Step 1: Connect the two negative pressure devices to the corresponding negative pressure devices, slide the compression sleeve 144 to compress and clamp the clamping head 143, and connect the sealing joint 420 to the air pump.

[0092] Step 2: Insert the catheter 100 into the patient's bladder and start the air pump and main power supply 230. The air pump transports the air to the inside of the balloon 400 through the airflow branch tube 410, causing the balloon 400 to inflate. The main power supply 230 controls the heating of the resistance wire 210.

[0093] Step 3a: Activate the negative pressure device corresponding to the medicine solution, so that the medicine solution enters the inside of the catheter 100 through the one-way valve 150 and the medicine inlet pipe 120, and is heated by the resistance wire 210 before being discharged into the patient's lesion.

[0094] Step 3b: Activate the negative pressure device corresponding to the flushing solution, so that the medicine enters the inside of the catheter 100 through the one-way valve 150 and the water injection pipe 130, and is heated by the resistance wire 210 before being discharged into the patient's lesion.

[0095] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A catheter for heating medication for bladder instillation, characterized in that, include: Catheter (100); A heating device (200) is installed at one end of the outer side of the catheter (100) and is inserted into the patient's bladder along with the catheter (100); A thermal insulation component (300) is installed on the outside of the conduit (100) and encloses the heating device (200); A balloon (400) is attached to the outside of a catheter (100); A temperature sensor (500) is mounted on the conduit (100) and located inside the insulation assembly (300).

2. The bladder instillation solution heating catheter according to claim 1, characterized in that: The heating device (200) includes: A resistance wire (210) is spirally wound around the outside of a conduit (100); A line (220) is connected to a resistance wire (210) and extends to the outside of the other end of a conduit (100); The main power supply (230) is fixed at the end of the line (220) away from the resistance wire (210).

3. The bladder instillation solution heating catheter according to claim 2, characterized in that: The thermal insulation component (300) includes: A blocking ring (310) is fixed to the outside of the conduit (100) and separates the temperature sensor (500) and the resistance wire (210); A heat insulation ring (320) is detachably fixed to the outside of a blocking ring (310); Two sealing plates (330) are provided and are respectively fixed at the two ends of the insulation ring (320) and bonded to the conduit (100).

4. The bladder instillation solution heating catheter according to claim 1, characterized in that: An airflow branch tube (410) is fixedly installed at one end of the balloon (400), and the airflow branch tube (410) extends toward the inlet of the catheter (100). A sealing connector (420) is fixedly installed at the end of the airflow branch tube (410) away from the balloon (400).

5. The bladder instillation solution heating catheter according to claim 1, characterized in that: A three-way connector (110) is fixedly installed at the other end of the conduit (100). A drug inlet pipe (120) is fixedly installed at the upper end of the three-way connector (110), and a water injection pipe (130) is fixedly installed at the lower end of the three-way connector (110). Pipe joints (140) are fixedly installed at the openings of both the drug inlet pipe (120) and the water injection pipe (130).

6. A bladder instillation solution heating catheter according to claim 5, characterized in that: One-way valves (150) are detachably installed in the middle of both the drug inlet pipe (120) and the water injection pipe (130).

7. A bladder instillation solution heating catheter according to claim 5, characterized in that: The pipe fitting (140) includes: A connector (141) is fixed at the opening of a water injection pipe (130) or a medicine inlet pipe (120); A sealing gasket (142) is bonded to the opening on the inner surface of the connector (141); Clamping heads (143), a plurality of which are fixed to the end of the receiving head (141) in a ring array; A compression sleeve (144) is slidably sleeved on the outside of the clamping head (143).

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