Hemodialysis catheter thrombolysis device

Abstract

The hemodialysis catheter thrombolysis device comprises a catheter, a negative pressure assembly is arranged at one end of the catheter, and a camera is arranged at the end, away from the negative pressure assembly, of the catheter; wherein an administration channel and a negative pressure channel are formed in the catheter, a protection assembly is arranged at an opening of the administration channel, the catheter is inserted into the hemodialysis tube, the camera ensures the position accuracy, thrombolysis liquid medicine is injected through the administration channel for thrombolysis, and then the negative pressure assembly is started to suck out the dissolved liquid medicine. Through the synergistic effect of the catheter, the negative pressure assembly and the dosing tube, efficient and convenient thrombolysis operation is achieved under the assistance of the camera, the device has the advantages of being simple in structure, convenient to operate, low in cost, good in effect and the like, and the problem of thrombus in the hemodialysis catheter can be effectively solved.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, and in particular to a hemodialysis catheter thrombolytic device. Background Art

[0002] In the field of hemodialysis treatment in my country, autologous arteriovenous fistula is the main type of vascular access for maintenance hemodialysis patients, but dialysis catheters with tunnels and polyester sleeves are the second most common vascular access option and also play an important role. After being inserted into the internal jugular vein, this type of dialysis catheter is relatively fixed in position, and its external interface is connected to the skin surface for connection to the dialysis machine.

[0003] However, during the long-term use of hemodialysis catheters, the formation of thrombi in the lumen is an extremely common and difficult problem. Due to the long-term use of hemodialysis catheters and their special internal environment, thrombi tend to accumulate gradually. Once thrombi completely block the lumen, it will seriously affect the normal progress of hemodialysis and even make the treatment impossible.

[0004] Current thrombolytic treatment methods often have many shortcomings. Traditional thrombolytic methods may be complicated to operate, requiring patients to wait for a long time, increasing the time cost of treatment and the pain of patients. Moreover, some thrombolytic methods are not effective and cannot effectively solve the problem of thrombus blockage, affecting the treatment effect of hemodialysis and the quality of life of patients. Summary of the invention

[0005] In order to overcome the existing problems, the embodiment of the present application provides a hemodialysis catheter thrombolysis device, which includes a catheter, a negative pressure component and a drug delivery tube. A camera is provided at one end of the catheter away from the negative pressure component. The catheter is a cylindrical structure. A drug delivery channel and a negative pressure channel are opened inside the catheter. The drug delivery channel and the drug delivery tube are connected to each other, and a protective component is provided at the opening of the drug delivery channel. When in use, the catheter is plugged into the inside of the dialysis tube and the entire process is observed by the camera. Then, the drug solution in the drug delivery tube is introduced from the inside of the drug delivery channel and squeezes the protective component, and the drug solution flows out from the inside of the catheter. After thrombolysis, the negative pressure component is operated to suck out the dissolved drug solution from the negative pressure channel to avoid entering the inside of the dialysis tube and flowing into the body. Bedside thrombolysis operation can be performed quickly to shorten the thrombolytic treatment time. It has a simple structure, is easy to operate, reduces treatment costs, alleviates patient pain, and has an obvious thrombolytic effect.

[0006] The technical solution adopted by the embodiment of the present application to solve the technical problem is:

[0007] A hemodialysis catheter thrombolytic device comprises a catheter, one end of the catheter is provided with a negative pressure component, and one end of the catheter away from the negative pressure component is provided with a camera;

[0008] Among them, a drug administration channel and a negative pressure channel are opened inside the catheter, and a protective component is provided at the opening of the drug administration channel. The catheter is inserted into the hemodialysis tube, and the camera ensures the accurate position. Thrombolytic solution is injected through the drug administration channel for thrombolysis. Then, the negative pressure component is started to suck out the dissolved solution, and the catheter is plugged into the dialysis tube. The whole process is observed by the camera. The solution in the drug administration tube is introduced from the inside of the drug administration channel and squeezes the protective component. The solution flows out of the catheter for thrombolysis. After thrombolysis, the negative pressure component is operated to suck out the dissolved solution from the negative pressure channel to prevent it from entering the dialysis tube and flowing into the body.

[0009] Preferably, the catheter is provided with a dosing tube on one side of the dosing channel, the inner diameter of the dosing channel is 0.5-1 mm, and the inner wall thereof is coated with an anti-stick coating. The dosing tube and the catheter are detachable structures, and the dosing tube and the catheter are plug-connected, so that when an external force is applied, the drug solution inside the dosing tube is transmitted to the inside of the dosing channel, and the catheter is plugged into the inside of the dialysis tube. The whole process is observed by a camera, and the drug solution in the dosing tube is introduced from the inside of the dosing channel and squeezes the protective component, and the drug solution flows out from the inside of the catheter for thrombolysis.

[0010] Preferably, a protective component is embedded in the medication channel, which can be opened under the pressure of the drug liquid and closed when there is no pressure. The protective component is an elastic structure, and the protective component includes a protective cover. The protective cover is provided with a cover plate on one side of the drug outlet, and the size of the cover plate is larger than the size of the drug outlet. The protective cover is provided with a drug outlet. When the medication tube is lowered by an external force, the drug liquid in the medication tube is transferred to the medication channel, and then the drug liquid acts on the surface wall of the cover plate, so that the cover plate opens to expose the drug outlet, so that the drug liquid is discharged from the drug outlet.

[0011] Preferably, the negative pressure channel and the negative pressure component are on the same side of the catheter, the negative pressure suction of the negative pressure component connected to the negative pressure channel is adjustable, an electric negative pressure pump is provided inside the negative pressure component, the negative pressure suction is continuously adjustable within the range of -80 to -300 mmHg, and the response time does not exceed 0.5 seconds.

[0012] Preferably, an optical fiber channel is provided at the bottom of the camera, the camera is a micro high-definition camera with a resolution of not less than 720p, a field of view of 60-120 degrees, and automatic focus and fill light functions. The optical fiber channel is recessed inside the catheter, and the camera is interconnected with an external display device, so that the picture taken by the camera can be displayed on the display device.

[0013] The advantages of the embodiments of the present application are:

[0014] The present invention comprises a catheter, a negative pressure component and a drug administration tube. A camera is arranged in one end of the catheter away from the negative pressure component. The catheter is a cylindrical structure. A drug administration channel and a negative pressure channel are provided inside the catheter. The drug administration channel and the drug administration tube are connected to each other, and a protective component is arranged at the opening of the drug administration channel. When in use, the catheter is plugged into the inside of a dialysis tube and the whole process is observed by the camera. Then, the drug solution in the drug administration tube is introduced from the inside of the drug administration channel and squeezes the protective component. The drug solution flows out from the inside of the catheter. After thrombolysis, the negative pressure component is operated to suck out the dissolved drug solution from the negative pressure channel to avoid entering the inside of the dialysis tube and flowing into the body. Bedside thrombolysis operation can be performed quickly, and the thrombolytic treatment time is shortened. The invention has the advantages of simple structure, convenient operation, reduced treatment cost, alleviated patient pain, and obvious thrombolytic effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0016] Figure 1 This is a schematic diagram of the overall structure of the hemodialysis catheter thrombolytic device of the present invention;

[0017] Figure 2 This is a schematic diagram of the overall structure of the hemodialysis catheter thrombolytic device of the present invention without the protective component;

[0018] Figure 3 It is a schematic diagram of the overall structure of the right side of the hemodialysis catheter thrombolytic device of the present invention;

[0019] Figure 4 It is a schematic diagram of the cross-sectional structure of the catheter in the hemodialysis catheter thrombolytic device of the present invention;

[0020] Figure 5 This is a schematic diagram of the overall structure of the front side of the protection component in the hemodialysis catheter thrombolytic device of the present invention;

[0021] Figure 6 It is a schematic diagram of the overall structure of the back side of the protective component in the hemodialysis catheter thrombolytic device of the present invention.

[0022] Description of main reference numerals:

[0023] 1. Catheter; 2. Negative pressure component; 3. Drug administration tube; 4. Camera; 5. Drug administration channel; 6. Negative pressure channel; 7. Protection component; 71. Protection cover; 72. Cover plate; 73. Drug outlet; 8. Fiber optic channel. DETAILED DESCRIPTION

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. In addition, for the convenience of description below, the referenced "up", "down", "left" and "right" are equal to the up, down, left and right directions of the drawings themselves. The "first", "second" and so on in the following text are distinguished for the description and have no other special meanings.

[0025] The embodiment of the present application solves the problems in the prior art by providing a hemodialysis catheter thrombolysis device. The present invention includes a catheter, a negative pressure component and a drug delivery tube. A camera is provided at one end of the catheter away from the negative pressure component. The catheter is a cylindrical structure. A drug delivery channel and a negative pressure channel are provided inside the catheter. The drug delivery channel and the drug delivery tube are connected to each other, and a protective component is provided at the opening of the drug delivery channel. When in use, the catheter is plugged into the inside of the dialysis tube and the entire process is observed by the camera. Then, the drug solution in the drug delivery tube is introduced from the inside of the drug delivery channel and squeezes the protective component, and the drug solution flows out from the inside of the catheter. After thrombolysis, the negative pressure component is operated to suck out the dissolved drug solution from the negative pressure channel to avoid entering the inside of the dialysis tube and flowing into the body. Bedside thrombolysis can be performed quickly to shorten the thrombolytic treatment time. The device has a simple structure, is easy to operate, reduces treatment costs, alleviates patient pain, and has an obvious thrombolytic effect.

[0026] The technical solution in the embodiment of the present application is to solve the above problems, and the overall idea is as follows:

[0027] Example 1

[0028] This embodiment provides a specific structure of a hemodialysis catheter thrombolytic device, such as Figure 1-6 As shown, it comprises a catheter 1, one end of which is provided with a negative pressure component 2, and the end of the catheter 1 away from the negative pressure component 2 is provided with a camera 4;

[0029] Among them, a drug administration channel 5 and a negative pressure channel 6 are opened inside the catheter 1, and a protective component 7 is provided at the opening of the drug administration channel 5. The catheter 1 is inserted into the hemodialysis tube, and the camera 4 ensures the accurate position. The thrombolytic solution is injected through the drug administration channel 5 for thrombolysis. Then the negative pressure component 2 is started to suck out the dissolved solution, and the catheter 1 is plugged into the dialysis tube. The whole process is observed through the camera 4. The solution in the drug administration tube 3 is introduced from the inside of the drug administration channel 5 and squeezes the protective component 7. The solution flows out from the inside of the catheter 1 for thrombolysis. After thrombolysis, the negative pressure component 2 is operated to suck out the dissolved solution from the negative pressure channel 6 to prevent it from entering the dialysis tube and flowing into the body.

[0030] The catheter 1 is provided with a dosing tube 3 on one side of the dosing channel 5. The inner diameter of the dosing channel 5 is 0.5-1 mm, and the inner wall thereof is coated with an anti-stick coating. The dosing tube 3 and the catheter 1 are detachable structures, and the dosing tube 3 and the catheter 1 are plugged in and connected, so that when an external force is applied to the dosing tube 3, the drug solution inside the dosing tube 3 is transmitted to the inside of the dosing channel 5. The catheter 1 is plugged into the inside of the dialysis tube and the whole process is observed through the camera 4. The drug solution in the dosing tube 3 is introduced from the inside of the dosing channel 5 and squeezes the protective component 7, and the drug solution flows out from the inside of the catheter 1 for thrombolysis.

[0031] A protective component 7 is embedded inside the medication channel 5, which can be opened under the pressure of the drug liquid and closed when there is no pressure. The protective component 7 is an elastic structure. The protective component 7 includes a protective cover 71. The protective cover 71 is provided with a cover plate 72 on one side of the drug outlet 73. The size of the cover plate 72 is larger than the size of the drug outlet 73. The protective cover 71 is provided with a drug outlet 73. When the medication tube 3 is lowered by an external force, the drug liquid inside the medication tube 3 is transmitted to the medication channel 5. Then, the drug liquid acts on the surface wall of the cover plate 72, so that the cover plate 72 opens to expose the drug outlet 73, so that the drug liquid is discharged from the drug outlet 73.

[0032] The negative pressure channel 6 and the negative pressure component 2 are on the same side of the catheter 1. The negative pressure suction of the negative pressure component 2 connected to the negative pressure channel 6 is adjustable. An electric negative pressure pump is provided inside the negative pressure component 2. The negative pressure suction is continuously adjustable within the range of -80 to -300 mmHg, and the response time does not exceed 0.5 seconds.

[0033] An optical fiber channel 8 is provided at the bottom of the camera 4. The camera 4 is a micro high-definition camera with a resolution of not less than 720p, a field of view of 60-120 degrees, and automatic focus and fill light functions. The optical fiber channel 8 is recessed inside the catheter 1. The camera 4 is interconnected with an external display device, so that the picture taken by the camera 4 can be displayed on the display device.

[0034] By adopting the above technical solution:

[0035] In a hemodialysis center of a hospital, a patient had thrombus in his hemodialysis catheter, which was treated with the thrombolytic device of the present invention.

[0036] The catheter 1 is made of medical grade polytetrafluoroethylene material with a smooth surface and a smooth insertion process. The camera 4 is an ultra-micro wide-angle camera with a resolution of 1080p and a field of view of 150 degrees. The autofocus and fill light functions enable it to clearly present the internal situation of the dialysis tube.

[0037] The inner diameter of the drug delivery channel 3 is 0.8 mm, and the polyetheretherketone anti-stick coating on the inner wall effectively prevents the drug solution from remaining. The negative pressure component 2 is an electric negative pressure pump, and the negative pressure suction is set at -150 mmHg, which responds quickly and sucks out the dissolved drug solution in time.

[0038] The drug administration channel 5 is connected to the drug administration tube 3, and a protective component 7 is provided at the opening of the drug administration channel 5. When in use, the catheter 1 is inserted into the inside of the dialysis tube and the whole process is observed through the camera 4. The drug solution in the drug administration tube 3 is introduced from the inside of the drug administration channel 5 and squeezes the protective component 7. Then the drug solution acts on the surface wall of the cover plate 72, so that the cover plate 72 opens to expose the drug outlet 73. In this way, the drug solution is discharged from the drug outlet 73, and the drug solution flows out from the inside of the catheter 1 for thrombolysis. After thrombolysis, the negative pressure component 2 operates to suck out the dissolved drug solution from the negative pressure channel 6 to prevent it from entering the inside of the dialysis tube and flowing into the body.

[0039] During the entire thrombolysis process, the doctor's operation was convenient, the patient suffered little pain, the thrombolysis effect was significant, and the patency of the hemodialysis catheter was successfully restored.

[0040] Example 2

[0041] This embodiment provides a specific structure of a hemodialysis catheter thrombolytic device, such as Figure 1-6 As shown, it comprises a catheter 1, one end of which is provided with a negative pressure component 2, and the end of the catheter 1 away from the negative pressure component 2 is provided with a camera 4;

[0042] Among them, a drug administration channel 5 and a negative pressure channel 6 are opened inside the catheter 1, and a protective component 7 is provided at the opening of the drug administration channel 5. The catheter 1 is inserted into the hemodialysis tube, and the camera 4 ensures the accurate position. The thrombolytic solution is injected through the drug administration channel 5 for thrombolysis. Then the negative pressure component 2 is started to suck out the dissolved solution, and the catheter 1 is plugged into the dialysis tube. The whole process is observed through the camera 4. The solution in the drug administration tube 3 is introduced from the inside of the drug administration channel 5 and squeezes the protective component 7. The solution flows out from the inside of the catheter 1 for thrombolysis. After thrombolysis, the negative pressure component 2 is operated to suck out the dissolved solution from the negative pressure channel 6 to prevent it from entering the dialysis tube and flowing into the body.

[0043] The catheter 1 is provided with a dosing tube 3 on one side of the dosing channel 5. The inner diameter of the dosing channel 5 is 0.5-1 mm, and the inner wall thereof is coated with an anti-stick coating. The dosing tube 3 and the catheter 1 are detachable structures, and the dosing tube 3 and the catheter 1 are plugged in and connected, so that when an external force is applied to the dosing tube 3, the drug solution inside the dosing tube 3 is transmitted to the inside of the dosing channel 5. The catheter 1 is plugged into the inside of the dialysis tube and the whole process is observed through the camera 4. The drug solution in the dosing tube 3 is introduced from the inside of the dosing channel 5 and squeezes the protective component 7, and the drug solution flows out from the inside of the catheter 1 for thrombolysis.

[0044] A protective component 7 is embedded inside the medication channel 5, which can be opened under the pressure of the drug liquid and closed when there is no pressure. The protective component 7 is an elastic structure. The protective component 7 includes a protective cover 71. The protective cover 71 is provided with a cover plate 72 on one side of the drug outlet 73. The size of the cover plate 72 is larger than the size of the drug outlet 73. The protective cover 71 is provided with a drug outlet 73. When the medication tube 3 is lowered by an external force, the drug liquid inside the medication tube 3 is transmitted to the medication channel 5. Then, the drug liquid acts on the surface wall of the cover plate 72, so that the cover plate 72 opens to expose the drug outlet 73, so that the drug liquid is discharged from the drug outlet 73.

[0045] The negative pressure channel 6 and the negative pressure component 2 are on the same side of the catheter 1. The negative pressure suction of the negative pressure component 2 connected to the negative pressure channel 6 is adjustable. An electric negative pressure pump is provided inside the negative pressure component 2. The negative pressure suction is continuously adjustable within the range of -80 to -300 mmHg, and the response time does not exceed 0.5 seconds.

[0046] An optical fiber channel 8 is provided at the bottom of the camera 4. The camera 4 is a micro high-definition camera with a resolution of not less than 720p, a field of view of 60-120 degrees, and automatic focus and fill light functions. The optical fiber channel 8 is recessed inside the catheter 1. The camera 4 is interconnected with an external display device, so that the picture taken by the camera 4 can be displayed on the display device.

[0047] By adopting the above technical solution:

[0048] Another patient had a severe thrombotic blockage of his hemodialysis catheter.

[0049] The catheter 1 of the thrombolytic device is smoothly inserted into place, the camera 4 clearly captures the position and shape of the thrombus, the inner wall coating of the drug delivery channel 3 ensures the smooth flow of the drug solution, and the negative pressure pump adjusts the negative pressure suction to -250 mmHg to quickly and effectively suck out the dissolved drug solution.

[0050] The drug administration channel 5 is connected to the drug administration tube 3, and a protective component 7 is provided at the opening of the drug administration channel 5. When in use, the catheter 1 is inserted into the inside of the dialysis tube and the whole process is observed through the camera 4. The drug solution in the drug administration tube 3 is introduced from the inside of the drug administration channel 5 and squeezes the protective component 7. Then the drug solution acts on the surface wall of the cover plate 72, so that the cover plate 72 opens to expose the drug outlet 73. In this way, the drug solution is discharged from the drug outlet 73, and the drug solution flows out from the inside of the catheter 1 for thrombolysis. After thrombolysis, the negative pressure component 2 operates to suck out the dissolved drug solution from the negative pressure channel 6 to prevent it from entering the inside of the dialysis tube and flowing into the body.

[0051] The thrombosis problem was eventually resolved, and the patient was able to continue hemodialysis treatment without any complications.

[0052] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.

Claims

1. A hemodialysis catheter thrombolytic device, characterized in that: It comprises a catheter (1), one end of the catheter (1) is provided with a negative pressure component (2), and the end of the catheter (1) away from the negative pressure component (2) is provided with a camera (4); The catheter (1) is provided with a drug administration channel (5) and a negative pressure channel (6), and a protective component (7) is provided at the opening of the drug administration channel (5). The catheter (1) is inserted into the hemodialysis tube, and the camera (4) ensures the accurate position. A thrombolytic solution is injected through the drug administration channel (5) for thrombolysis, and then the negative pressure component (2) is started to suck out the dissolved solution.

2. A hemodialysis catheter thrombolytic device as claimed in claim 1, characterized in that: The catheter (1) is provided with a drug administration tube (3) located on one side of the drug administration channel (5); the drug administration tube (3) and the catheter (1) are detachable structures.

3. A hemodialysis catheter thrombolytic device as claimed in claim 1, characterized in that: A protection component (7) is embedded inside the drug delivery channel (5).

4. A hemodialysis catheter thrombolytic device as claimed in claim 1, characterized in that: The negative pressure channel (6) and the negative pressure component (2) are located on the same side of the catheter (1), and the negative pressure suction force of the negative pressure component (2) connected to the negative pressure channel (6) is adjustable.

5. A hemodialysis catheter thrombolytic device as claimed in claim 3, characterized in that: The protection component (7) is an elastic structure, and comprises a protection cover (71). A medicine outlet (73) is provided inside the protection cover (71).

6. A hemodialysis catheter thrombolytic device as claimed in claim 5, characterized in that: The protective cover (71) is provided with a cover plate (72) located on one side of the medicine outlet (73), and the size of the cover plate (72) is larger than the size of the medicine outlet (73).

7. A hemodialysis catheter thrombolytic device as claimed in claim 1, characterized in that: The bottom end of the camera head (4) is provided with an optical fiber channel (8), and the optical fiber channel (8) is recessed inside the catheter (1).

8. A hemodialysis catheter thrombolytic device as claimed in claim 1, characterized in that: An electric negative pressure pump is arranged inside the negative pressure component (2).

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