CN220158879U - Two-point puncture multichannel hemodialysis treatment catheter device - Google Patents

Abstract

The utility model relates to a two-point puncture multichannel hemodialysis treatment catheter device which comprises a butt joint hose, two tee joint hoses and two needles, wherein two ends of the butt joint hose are respectively in threaded butt joint with one end port of the two tee joint hoses and then are communicated, a first pipe clamp is clamped on the butt joint hose, a second pipe clamp and a third pipe clamp are respectively clamped on the other two ends of the two tee joint hoses, and the two needles are respectively in butt joint with one of the other two ends of the two tee joint hoses. The utility model not only can meet the requirements of two-point puncture, but also can realize high-efficiency and safe hemodialysis treatment in the hemodialysis treatment process of multi-point puncture multi-vascular access blood drawing, thereby greatly reducing potential safety hazards and further ensuring that the multi-point puncture multi-vascular access blood drawing has very good hemodialysis treatment effect. The product of the scheme has the advantages of simple structure, convenient use, convenient and quick treatment realization, high reliability, good safety, strong applicability and the like.

Description

Two-point puncture multichannel hemodialysis treatment catheter device

Technical Field

The utility model relates to the field of medical instruments, in particular to a hemodialysis treatment catheter device.

Background

The current clinical conditions of emergency hemodialysis treatment or only need to be performed for several times are as follows: hyperkalemia which cannot be corrected by medical drugs, high volume status which cannot be improved by diuretics, acute poison or drug poisoning, severe metabolic acidosis, etc. The conditions are usually hemodialysis treatment by arteriovenous puncture, which can gain rescue time for temporary emergency hemodialysis patients and has less influence on life of the patients. The arteriovenous direct puncture is that during hemodialysis treatment, a hemodialysis puncture needle is used for directly puncturing arteries of a patient, such as a dorsum of foot artery and a radial artery, then blood of the patient is led out, the blood is purified by a dialyzer, and then the blood is returned from veins of the patient, and the vascular access form is called arterial intravenous puncture. Patients with poor vascular conditions, advanced age, poor control of underlying diseases and the like, such as people with hyperlipidemia, hyperglycemia, hypertension and the like, have long-term index rise, so that poor vascular compliance and atherosclerosis are caused, the lowest blood flow which cannot achieve the hemodialysis treatment easily is caused during arterial puncture, and the multi-point puncture multi-vascular access is needed for the hemodialysis treatment.

Currently, a hemodialysis treatment catheter for hemodialysis consists of only one needle, one soft catheter communicated with the needle, and a tube clamp clamped on the soft catheter (for example, as disclosed in patent documents such as CN215426455U, CN215915902U and CN203663147U of Chinese authorized bulletin), so that when hemodialysis treatment is performed by multipoint puncture multiple vascular access blood drawing, not only multipoint puncture is needed, but also each hemodialysis treatment catheter needs to be connected to one main conveying tube in an abutting mode so as to supply blood to a dialyzer in a centralized mode. Thus, although the requirement of multi-point puncture multi-vascular access blood drawing can be met, the following defects are caused by using the existing hemodialysis treatment catheter to perform multi-point puncture multi-vascular access blood drawing:

in the first aspect, the diameters of the hose and the main conveying pipe are smaller (the pipe diameter is generally below 15 Fr), so that the hose and the main conveying pipe are inconvenient to dock, and when the position to be docked is increased, the workload of a doctor is increased, so that the convenience and efficiency of the hemodialysis treatment are poor, and the treatment speed of the doctor on a patient is affected.

In the second aspect, after the first hemodialysis treatment catheter completes puncture, when the second hemodialysis treatment catheter is punctured, the first hemodialysis treatment catheter is in a complete exposure state, so that the nozzle of the hemodialysis treatment catheter is easily contacted with some unhygienic places due to false touch and/or shaking, and is also easily contacted with germs in the air too much, the probability that the nozzle of the hemodialysis treatment catheter is polluted is increased, and the risk of infection of a patient is increased, which is extremely unfavorable for realizing safe treatment.

In the third aspect, in the process of butt joint of each hemodialysis treatment catheter and the main conveying pipe, the port of the hemodialysis treatment catheter and the port of the main conveying pipe are directly exposed, in the process, the situation that the orifice of the hemodialysis treatment catheter is contacted with a pollution source due to improper operation is easy to occur, the hemodialysis treatment catheter and the main conveying pipe are easy to move, the ports of the hemodialysis treatment catheter and the main conveying pipe are in excessive contact with germs in the air, and the risk of infection of a patient is easy to rise in the process.

According to the fourth aspect, most of existing hemodialysis treatment catheters are butted together in a nested mode, and limit is achieved by means of surface-to-surface contact friction fit after nesting, the strength of limit by friction force is very limited, disconnection between the hemodialysis treatment catheters and the conveying main pipe is easily caused by turning or mistaken rubbing of a patient, and therefore a large amount of blood loss risks are easily caused.

In the process of carrying out the hemodialysis treatment of multi-point puncture multi-vascular access induced blood, the existing hemodialysis treatment catheter cannot realize efficient and safe hemodialysis treatment, has great potential safety hazard, and is easy to influence the effect of the hemodialysis treatment.

Therefore, it is necessary to redesign the structure of the hemodialysis treatment catheter.

Disclosure of Invention

The utility model aims to solve the problems and the defects, and provides the two-point puncture multi-channel hemodialysis treatment catheter device, which can not only meet the requirements of two-point puncture, but also realize high-efficiency and safe hemodialysis treatment in the hemodialysis treatment process of multi-point puncture multi-vascular channel blood introduction, thereby greatly reducing potential safety hazards and further ensuring very good hemodialysis treatment effect of multi-point puncture multi-vascular channel blood introduction; the product of the scheme has the advantages of simple structure, convenient use, convenient and quick treatment realization, high reliability, good safety, strong applicability and the like.

The technical scheme of the utility model is realized as follows:

the utility model provides a two point puncture multichannel hemodialysis treatment catheter device which characterized in that includes butt joint hose, two tee bend hoses, two syringe needles, wherein the both ends of butt joint hose communicate after the butt joint of one of them end port screw thread of two tee bend hoses respectively, the clamp is equipped with first pipe clamp on the butt joint hose, the other both ends of two tee bend hoses are equipped with second pipe clamp, third pipe clamp respectively, two syringe needles butt joint respectively on one of them port at other both ends of two tee bend hoses.

Preferably, the tee joint hose comprises a first hose, a second hose, a third hose and a three-way pipe, one ends of the first hose, the second hose and the third hose are respectively in butt joint communication with three ports of the three-way pipe, the other end of the first hose is in threaded butt joint communication with the end part of the butt joint hose, the second pipe clamp and the third pipe clamp are respectively clamped on the second hose and the third hose, and the needle head is in butt joint with the other end of the third hose.

Preferably, the two-point puncture multichannel hemodialysis treatment catheter device further comprises a threaded sleeve assembly, and the abutting hose is in threaded abutting connection with the first hose through the threaded sleeve assembly.

Preferably, the screw thread revolves the cover subassembly and includes first hard tube head, second hard tube head, first sealing rubber circle, screw thread cover, the port hot melt of first hose cup joints on the one end of first hard tube head, the port hot melt of butt joint hose cup joints on the one end of second hard tube head, first sealing rubber circle is pressed from both sides and adorned between first hard tube head, second hard tube head, screw thread cover rotationally suit is on the second hard tube head to make screw thread cover threaded connection on first hard tube head.

Preferably, the second hard tip is inserted into the first hard tip.

Preferably, an inserting ring groove is formed in the edge of the other port of the first hard tube head, a second sealing rubber ring is embedded in the end face of the second hard tube head, and the second sealing rubber ring is tightly pressed at the bottom of the inserting ring groove; the second hard pipe head is characterized in that a reinforcing convex ring is arranged on the outer circumferential surface of the second hard pipe head, a limiting ring groove is formed in the outer circumferential surface of the reinforcing convex ring, a limiting convex ring is arranged on the inner circumferential surface of the threaded sleeve, the limiting convex ring can be rotationally embedded in the limiting ring groove, the first sealing rubber ring is sleeved on the second hard pipe head, and the first sealing rubber ring is clamped between the first hard pipe head and the reinforcing convex ring.

Preferably, the docking hose is sleeved with a first drip regulator.

Preferably, the second hose is sleeved with a second dripping speed regulator.

Preferably, the second hose is connected with a flowmeter and a pressure gauge in series.

Preferably, the two-point puncture multichannel hemodialysis treatment catheter device further comprises a hard tube and a screw sleeve, the other end of the second hose is sleeved on the end part of the hard tube in a hot melting mode, and the screw sleeve is sleeved on the hard tube in a rotatable mode.

The utility model has the beneficial effects that: (1) The two-point puncture multichannel hemodialysis treatment catheter device can reduce the times of pipeline butt joint when in two-point puncture multichannel hemodialysis treatment, so that the workload of doctors can be reduced, the convenience and the efficiency of the two-point puncture multichannel hemodialysis treatment can be improved, and the treatment speed of the doctors on patients can be improved. After the times of pipeline butt joint are reduced, the situations of error contact, error collision and overlong air exposure time of related nozzles can be reduced, so that the probability of pollution to the nozzles can be greatly reduced, the risk of infection of patients can be reduced, and the safety of two-point puncture multichannel hemodialysis treatment can be improved.

(2) Through adopting butt joint hose and two tee bend hoses to make butt joint hose and two tee bend hoses dock mutually, still clamp first pipe clamp, second pipe clamp, third pipe clamp on corresponding position, this not only can stably construct the structure of multichannel, can also select the break-make of relevant pipeline as required, and this can satisfy multiple user demand better, and this two-point puncture multichannel hemodialysis treatment catheter device's suitability is very good.

(3) The butt joint hose and the tee joint hose are in butt joint through threads, so that the butt joint hose and the tee joint hose can be firmly in butt joint, and the situation that the two-point puncture multi-channel hemodialysis treatment catheter device is disconnected due to pulling is avoided when a patient turns around or is scratched by mistake, so that the risk of massive blood loss of the patient can be reduced.

(4) The two-point puncture multi-channel hemodialysis treatment catheter device can meet the requirements of two-point puncture, and can realize high-efficiency and safe hemodialysis treatment in the hemodialysis treatment process of multi-point puncture multi-vascular channel blood introduction, so that potential safety hazards can be greatly reduced, and further, the good hemodialysis treatment effect of multi-point puncture multi-vascular channel blood introduction can be ensured; the product of the scheme has the advantages of simple structure, convenient use, convenient and quick treatment realization, high reliability, good safety, strong applicability and the like.

Drawings

Fig. 1 is a schematic diagram of the overall structure of the present utility model.

FIG. 2 is a schematic diagram of an assembly structure of a three-way hose and a needle according to the present utility model.

Fig. 3 is a schematic diagram of an assembly structure of a docking hose and a first hose according to the present utility model.

FIG. 4 is a schematic diagram of an assembled structure of a second hard tube head and a docking hose according to the present utility model.

Fig. 5 is a schematic diagram of an assembled structure of a second hose and a rigid tube according to the present utility model.

Detailed Description

As shown in fig. 1, the two-point puncture multichannel hemodialysis treatment catheter device of the utility model comprises a butt joint hose 1, two tee joint hoses 2 and two needles 3, wherein two ends of the butt joint hose 1 are respectively in threaded butt joint with one end port of the two tee joint hoses 2 and then are communicated, a first pipe clamp 10 is clamped on the butt joint hose 1, a second pipe clamp 20 and a third pipe clamp 30 are respectively clamped on the other two ends of the two tee joint hoses 2, and the two needles 3 are respectively in butt joint with one of the other two end ports of the two tee joint hoses 2. The two-point puncture multichannel hemodialysis treatment catheter device can reduce the times of pipeline butt joint when in two-point puncture multichannel hemodialysis treatment, so that the workload of doctors can be reduced, the convenience and the efficiency of the two-point puncture multichannel hemodialysis treatment can be improved, and the treatment speed of the doctors on patients can be improved. After the times of pipeline butt joint are reduced, the situations of error contact, error collision and overlong air exposure time of related nozzles can be reduced, so that the probability of pollution to the nozzles can be greatly reduced, the risk of infection of patients can be reduced, and the safety of two-point puncture multichannel hemodialysis treatment can be improved.

Through adopting butt joint hose 1 and two tee bend hoses 2 to make butt joint hose 1 and two tee bend hoses 2 butt joint, still clamp first pipe clamp 10, second pipe clamp 20, third pipe clamp 30 on the position that corresponds, this not only can stably construct the structure of multichannel, can also select the break-make of relevant pipeline as required, and this can satisfy multiple user demand better, and this two-point puncture multichannel hemodialysis treatment catheter device's suitability is very good. The butt joint hose 1 and the tee joint hose 2 are in butt joint through threads, so that the butt joint hose 1 and the tee joint hose 2 can be firmly in butt joint, and the situation that the two-point puncture multichannel hemodialysis treatment catheter device is broken due to pulling is avoided when a patient turns around or rubs by mistake, so that the risk of massive blood loss of the patient can be reduced. The two-point puncture multi-channel hemodialysis treatment catheter device can meet the requirements of two-point puncture, and can realize high-efficiency and safe hemodialysis treatment in the hemodialysis treatment process of multi-point puncture multi-vascular channel blood introduction, so that potential safety hazards can be greatly reduced, and further, the good hemodialysis treatment effect of multi-point puncture multi-vascular channel blood introduction can be ensured; the device has the advantages of simple structure, convenient use, convenient and quick treatment realization, high reliability, good safety, strong applicability and the like. The two-point puncture multichannel hemodialysis treatment catheter device can provide possibility of multichannel vascular access hemodialysis for patients and better treatment for critical patients. The two-point puncture multichannel hemodialysis treatment catheter device can also be applied to the safe and reliable conversion of the hemodialysis machine service of a patient through the switch adjustment of the multichannel tube when the hemodialysis machine fails.

As shown in fig. 1 and 2, the three-way hose 2 includes a first hose 21, a second hose 22, a third hose 23, and a three-way pipe 24, one ends of the first hose 21, the second hose 22, and the third hose 23 are respectively in butt joint communication with three ports of the three-way pipe 24, the other end of the first hose 21 is in threaded butt joint communication with an end of the butt joint hose 1, the second pipe clamp 20 and the third pipe clamp 30 are respectively clamped on the second hose 22 and the third hose 23, and the needle 3 is butt-jointed on the other end of the third hose 23. The three hoses are abutted with the three-way pipe 24 to form the three-way hose 2, so that the three-way hose 2 can be manufactured conveniently, the three-way hose 2 can be guaranteed to have quite high reliability, and medical workers can use the three-way hose conveniently, and the reliability and the applicability of the two-point puncture multichannel hemodialysis treatment catheter device can be further improved.

As shown in fig. 2, the tee 24 is a T-shaped tee. Thus, the pipeline can be conveniently butted during production, and the convenience of manufacture is improved. And thus the probability of winding the hose can be reduced, thereby contributing to the improvement of convenience in use.

The first hose 21, the second hose 22, the third hose 23 and the three-way pipe 24 are all medical rubber hoses, and the first hose 21, the second hose 22, the third hose 23 and the three-way pipe 24 are all connected through hot melt adhesives. This enables a very stable and reliable abutment of the hoses with the tee 24, thus ensuring a very high reliability of the tee hose 2. And the medical rubber tube is adopted, so that the use safety can be ensured, and the safety of the three-way hose 2 can be improved.

As shown in fig. 1 and 3, the two-point puncture multichannel hemodialysis treatment catheter device further comprises a threaded sleeve assembly 4, and the docking hose 1 is in threaded docking communication with the first hose 21 through the threaded sleeve assembly 4. The screw thread screwing sleeve assembly 4 not only can ensure very stable and reliable butt joint, but also can facilitate the screw thread butt joint process, and the butt joint hose 1 and/or the first hose 21 do not need to be rotated in the butt joint process, thereby being beneficial to further improving the convenience of assembling the butt joint hose 1 and the first hose 21.

As shown in fig. 3 and 4, the screw cap assembly 4 includes a first hard tube head 41, a second hard tube head 42, a first sealing rubber ring 43, and a screw cap 44, wherein the port of the first hose 21 is hot-melt-sleeved on one end of the first hard tube head 41, the port of the docking hose 1 is hot-melt-sleeved on one end of the second hard tube head 42, the first sealing rubber ring 43 is clamped between the first hard tube head 41 and the second hard tube head 42, and the screw cap 44 is rotatably sleeved on the second hard tube head 42, and the screw cap 44 is in screw connection with the first hard tube head 41. By means of the first sealing rubber ring 43, the butt joint of the screw thread rotary sleeve assembly 4 can be guaranteed to have very high sealing performance. By mounting the first hose 21 and the port of the docking hose 1 in a hot melt socket manner, the docking stability and reliability can be ensured to be very high. Meanwhile, the hard tube head can ensure that the butt joint has very high structural strength, thereby being beneficial to further improving the reliability of the threaded sleeve component 4.

The first hard tube head 41 and the second hard tube head 42 adopt medical hard plastic tubes commonly used on the existing dialysis tubes, so that the requirements of practical use can be met.

As shown in fig. 3, the second hard tip 42 is inserted into the first hard tip 41. This can further increase the stability and reliability of the abutment of the threaded sleeve assembly 4, thereby helping to further increase the reliability of the two-point puncture multichannel hemodialysis treatment catheter device.

As shown in fig. 3 and fig. 4, an insertion ring groove 411 is formed on the edge of the other end of the first hard tube head 41, a second sealing rubber ring 45 is embedded on the end surface of the second hard tube head 42, and the second sealing rubber ring 45 is tightly pressed on the bottom of the insertion ring groove 411; the second hard tube head 42 is provided with a reinforcing convex ring 421 on its outer circumferential surface, the outer circumferential surface of the reinforcing convex ring 421 is provided with a limiting ring groove 422, the inner circumferential surface of the threaded sleeve 44 is provided with a limiting convex ring 441, the limiting convex ring 441 is rotatably embedded in the limiting ring groove 422, the first sealing rubber ring 43 is sleeved on the second hard tube head 42, and the first sealing rubber ring 43 is clamped between the first hard tube head 41 and the reinforcing convex ring 421. The first sealing rubber ring 43 and the second sealing rubber ring 45 can achieve double sealing effect, so that the reliability of butt joint can be further improved. The limit convex ring 441 on the thread sleeve 44 is limited by the reinforcing convex ring 421 and the limit annular groove 422, which can play a very stable and reliable limit role on the thread sleeve 44, thereby being beneficial to further improving the reliability of the thread sleeve assembly 4.

In order to facilitate the rotation of the threaded sleeve 44, an anti-slip relief (not shown) may be provided on the outer wall of the threaded sleeve 44, which may prevent slipping during the rotation of the threaded sleeve 44, thereby facilitating a very tight connection and facilitating disassembly, and thus further improving the convenience of use.

In the actual production process, the limiting convex ring 441 and the threaded sleeve 44 may be first made into two semicircular shells, and semicircular convex strips capable of forming the limiting convex ring 441 are formed on the inner walls of the two semicircular shells. When installed, the two semicircular ribs are both snapped into the retaining ring groove 422, and then the two semicircular shells are glued or heat fused together, which allows the threaded sleeve 44 to be rotatably mounted on the retaining collar 441.

As shown in fig. 1, the docking hose 1 is sleeved with a first drip regulator 40. The first drip regulator 40 can be used for regulating the flow rate of the docking hose 1, so that the use requirements of various use environments can be met, and the application range can be further improved.

As shown in fig. 2, the second hose 22 is provided with a second drip speed regulator 50. The second drip speed regulator 50 can be used for regulating the flow rate of the second hose 22, which can meet the use requirements of various use environments, thereby further improving the application range.

The flow and the flow direction of different pipelines can be controlled through the coordinated control of each pipe clamp and each drip speed regulator, so that various use requirements can be met, and the two-point puncture multichannel hemodialysis treatment catheter device has a very wide application range.

As shown in fig. 2, the second hose 22 is connected in series with a flowmeter 60 and a pressure gauge 70. The blood condition of the patient can be intuitively and effectively observed by a doctor, so that the doctor can conveniently and rapidly grasp the related medical process, and the safer treatment process can be conveniently realized, so that misdiagnosis is avoided.

As shown in fig. 2 and 5, the two-point puncture multichannel hemodialysis treatment catheter device further comprises a hard tube 80 and a screw sleeve 90, wherein the other end of the second hose 22 is in hot melt sleeving connection with the end part of the hard tube 80, and the screw sleeve 90 is rotatably sleeved on the hard tube 80. The hard pipe 80 can ensure that the installation position of the screw sleeve 90 has very high structural strength, thereby ensuring that the installation and positioning of the screw sleeve 90 are very stable and reliable. By means of the screw sleeve 90, when the second hose 22 is in butt joint with other pipelines, screw sleeve connection can be achieved through the screw sleeve 90 and other pipelines (screw teeth for screwing the screw sleeve 90 can be made on the other pipelines in advance), so that stable and reliable butt joint can be ensured, and reliability of the two-point puncture multichannel hemodialysis treatment catheter device can be further improved.

The hard tube 80, the screw sleeve 90 and other structures for screwing the screw sleeve 90 on the other pipelines together form the same structure as the screw sleeve assembly 4, so that the butt joint of the second hose 22 and other pipelines can be ensured to be very stable and reliable.

On the two-point puncture multichannel hemodialysis treatment catheter device, an assembly structure of two puncture needles and multiple channels is adopted, and the requirement of centralized blood supply can be directly met after puncture is completed. The method can reduce the amount of butt joint operation and the probability of being polluted, so that the high-efficiency and safe hemodialysis treatment can be realized, and further the potential safety hazard in the hemodialysis treatment process can be greatly reduced, thereby greatly reducing the risk of infection of patients and reducing the contradiction between doctors and patients. Meanwhile, the pipeline butt joint on the two-point puncture multichannel hemodialysis treatment catheter device adopts threaded butt joint, and the two-point puncture multichannel hemodialysis treatment catheter device cannot be disconnected even under accidental pulling and scraping, so that the risk of massive blood loss can be greatly reduced, and the safety of patients can be better ensured.

Claims (10)

1. A two-point puncture multichannel hemodialysis treatment catheter device, characterized in that: the three-way hose comprises a butt joint hose (1), two three-way hoses (2) and two needles (3), wherein two ends of the butt joint hose (1) are respectively in threaded butt joint with one end port of the two three-way hoses (2) and then are communicated, a first pipe clamp (10) is clamped on the butt joint hose (1), a second pipe clamp (20) and a third pipe clamp (30) are respectively clamped on the other two ends of the two three-way hoses (2), and the two needles (3) are respectively in butt joint with one of the ports of the other two ends of the two three-way hoses (2).

2. The two-point puncture multichannel hemodialysis treatment catheter device of claim 1, wherein: the tee bend hose (2) includes first hose (21), second hose (22), third hose (23), three-way pipe (24), the one end of first hose (21), second hose (22) and third hose (23) respectively with three port butt joint intercommunication of three-way pipe (24), the other end of first hose (21) and the tip screw thread butt joint intercommunication of butt joint hose (1), second pipe clamp (20), third pipe clamp (30) clamp respectively on second hose (22), third hose (23), syringe needle (3) butt joint are on the other end of third hose (23).

3. The two-point puncture multichannel hemodialysis treatment catheter device of claim 2, wherein: the hose further comprises a threaded sleeve component (4), and the abutting hose (1) is in threaded abutting connection with the first hose (21) through the threaded sleeve component (4).

4. A two-point puncture multichannel hemodialysis treatment catheter device according to claim 3, characterized in that: the screw thread revolves cover subassembly (4) including first hard tube head (41), second hard tube head (42), first sealing rubber circle (43), screw thread cover (44), the port hot melt of first hose (21) cup joints on the one end of first hard tube head (41), the port hot melt of butt joint hose (1) cup joints on the one end of second hard tube head (42), first sealing rubber circle (43) is pressed from both sides dress between first hard tube head (41), second hard tube head (42), screw thread cover (44) rotationally suit is on second hard tube head (42) to make screw thread cover (44) threaded connection on first hard tube head (41).

5. The two-point puncture multichannel hemodialysis treatment catheter device of claim 4, wherein: the second hard tube head (42) is inserted into the first hard tube head (41).

6. The two-point puncture multichannel hemodialysis treatment catheter device of claim 5, wherein: an inserting ring groove (411) is formed in the edge of the other port of the first hard tube head (41), a second sealing rubber ring (45) is embedded in the end face of the second hard tube head (42), and the second sealing rubber ring (45) is tightly pressed at the bottom of the inserting ring groove (411); the second hard tube head (42) is provided with a reinforcing convex ring (421) on the outer circumferential surface, a limiting annular groove (422) is formed in the outer circumferential surface of the reinforcing convex ring (421), a limiting convex ring (441) is arranged on the inner circumferential surface of the threaded sleeve (44), the limiting convex ring (441) is rotatably embedded in the limiting annular groove (422), the first sealing rubber ring (43) is sleeved on the second hard tube head (42), and the first sealing rubber ring (43) is clamped between the first hard tube head (41) and the reinforcing convex ring (421).

7. The two-point puncture multichannel hemodialysis treatment catheter device according to any of claims 1 to 6, wherein: the butt joint hose (1) is sleeved with a first dripping speed regulator (40).

8. The two-point puncture multichannel hemodialysis treatment catheter device of claim 2, wherein: a second drip regulator (50) is sleeved on the second hose (22).

9. The two-point puncture multichannel hemodialysis treatment catheter device of claim 2, wherein: the second hose (22) is connected with a flowmeter (60) and a pressure gauge (70) in series.

10. The two-point puncture multichannel hemodialysis treatment catheter device of claim 2, wherein: the novel hose further comprises a hard tube (80) and a screw sleeve (90), wherein the other end of the second hose (22) is sleeved on the end part of the hard tube (80) in a hot melting mode, and the screw sleeve (90) can be sleeved on the hard tube (80) in a rotating mode.