CN219354841U - Special integral type connecting line of CRRT+HP - Google Patents

Abstract

The utility model relates to a CRRT+HP special integrated connecting pipeline, which is of an n-shaped structure and comprises a main pipeline, a first branch pipeline and a second branch pipeline; the two ends of the main pipeline are respectively provided with a main pipeline arterial port and a main pipeline venous port; the middle section of the main pipeline is provided with at least one flow limiting clamp on the first branch pipeline and the second branch pipeline; the head end of the first branch pipeline is communicated and connected with a main pipeline body close to the arterial port section of the main pipeline; the tail end of the first branch pipeline is provided with a first arterial port; the head end of the second branch pipeline is communicated and connected with a main pipeline body close to the venous port section of the main pipeline; and a second venous port is arranged at the tail end of the second branch pipeline. The combined treatment device can achieve the aim of combined treatment under the condition that the pipeline is not dismounted, realize closed pre-flushing and blood return, reduce nursing workload, reduce infection, air embolism and coagulation risk, and ensure the treatment safety of patients.

Description

Special integral type connecting line of CRRT+HP

Technical Field

The utility model relates to the technical field of medical appliances, in particular to an integrated connecting pipeline special for CRRT+HP.

Background

In recent years, the application advantages of the heterozygous blood purification mode in the treatment of critical patients are gradually highlighted, and toxic substances in blood can be continuously and rapidly removed, so that the optimal treatment effect is achieved. Continuous kidney replacement therapy (continuous renal replacement treatment, CRRT) and blood perfusion (HP) are relatively simple and effective combination technologies, are suitable for various severe patients suffering from acute drug poisoning, sepsis, liver failure, acute kidney injury, hyperlipidemia pancreatitis, MODS and serious internal environment disorder, can effectively remove toxins in bodies, maintain normal body immune systems, replace functions of damaged organs, alleviate subsequent complications of poisoning, and improve prognosis of patients.

At present, the operation method of clinical CRRT+HP combined treatment is that a disposable blood perfusion device is directly added on the basis of the original CRRT pipeline, namely, the dialyzer is connected with the disposable blood perfusion device through a one-way connecting pipe, and the disposable blood perfusion device is disassembled after the treatment is finished. In the current clinical care practice, when installing and dismantling the disposable blood perfusion device, in order to avoid the blood in the pipeline to overflow, the operation of the blood pump is required to be stopped, and the closed blood circulation pipeline is required to be opened and exposed in the air, so that the operation process is complicated, the time is consumed, the nursing workload is increased, and the risks of blood overflow, pollution, air embolism and blood coagulation of the extracorporeal circulation pipeline of a patient are increased.

Chinese patent literature: cn202121726477.X, filing date 2021.07.28, patent name: a novel special pipeline combining CRRT with HP. Disclosed is: the utility model provides a novel special pipeline of CRRT joint HP, includes the dialysis pipeline, the dialysis pipeline sets firmly on treatment facility and is used for carrying out dialysis treatment work, the dialysis pipeline includes blood filter, perfusion device, venous kettle, waste liquid drainage ware, connecting pipe and shunt tubes.

Chinese patent literature: CN201320521305.8, filing date 2013.08.23, patent name: a CRRT hemodialysis line. The CRRT hemodialysis pipeline is characterized in that a replacement liquid feeding pipe and a blood clot discharging pipe are further arranged at the front end of an arterial kettle of the arterial pipeline, one can be connected with replacement liquid, and the other can discharge blood clots. The pre-filtration pressure monitoring tube of the arterial pipeline is provided with a flow control clamp, when a blood clot is formed, the blood clot can be discharged from the blood supply port of the arterial kettle by pinching the arterial kettle or is drawn out by connecting a 20ml empty needle to the blood supply port of the arterial kettle.

The novel special pipeline combining CRRT with HP in the patent document CN202121726477.X consists of a blood filter, a perfusion device, a venous kettle, a waste liquid drainage device, a connecting pipe, a shunt pipe and four pipe clamps through a dialysis pipeline, wherein the four pipe clamps are respectively arranged on the connecting pipe and the shunt pipe for connecting the blood filter and the perfusion device, and the pre-filling and treatment work of the perfusion device and the blood filter are realized by controlling the opening and closing of the pipe clamps; the CRRT hemodialysis pipeline in the patent document CN201320521305.8 is provided with the flow control clamp on the venous pressure monitoring pipe of the venous pipeline, so that the structure is simple, the cost is low, the use is convenient, the blockage of a blood clot on the pipeline is avoided, the blood of a patient is wasted, the economic burden is reduced, the fear of the patient is reduced, and the treatment effect is achieved. However, the pipelines in the two prior patent documents cannot achieve the purpose of combined treatment without disassembling the pipelines, and achieve closed pre-flushing and blood return.

In view of the above, there is a need for a crrt+hp dedicated integrated connection pipeline capable of achieving the purpose of combined treatment without disassembling the pipeline, realizing closed pre-flushing and blood return, reducing nursing workload, improving nursing work efficiency, reducing infection, air embolism and coagulation risk, and guaranteeing patient treatment safety.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art, and provides the CRRT+HP special integrated connecting pipeline which can achieve the purpose of combined treatment without disassembling the pipeline, realize closed pre-flushing and blood return, reduce nursing workload, improve nursing work efficiency, reduce infection, air embolism and coagulation risk, and ensure the treatment safety of patients.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the integral connecting pipeline special for CRRT and HP is of an n-shaped structure, and comprises a main pipeline, a first branch pipeline and a second branch pipeline; the two ends of the main pipeline are respectively provided with a main pipeline arterial port and a main pipeline venous port; the middle section of the main pipeline and the first branch pipeline and the second branch pipeline are respectively provided with at least one flow limiting clamp; the head end of the first branch pipeline is communicated and connected with a main pipeline body close to the arterial port section of the main pipeline; the tail end of the first branch pipeline is provided with a first arterial port; the head end of the second branch pipeline is communicated and connected with a main pipeline body close to the venous port section of the main pipeline; and a second venous port is arranged at the tail end of the second branch pipeline.

As a preferable technical scheme, the main pipeline arterial port and the main pipeline venous port are respectively and correspondingly provided with a main pipeline arterial port and a main pipeline venous port.

As a preferable technical scheme, the first arterial port and the second venous port are respectively provided with a first arterial interface and a first venous interface correspondingly.

As a preferable technical scheme, the total length of the main pipeline is 280-320mm under the size of excluding the arterial interface of the main pipeline and the venous interface of the main pipeline.

As a preferable technical scheme, the lengths of the first branch pipeline and the second branch pipeline are the same, and the total length is 500-600mm without the first arterial interface and the first venous interface.

The utility model has the advantages that:

1. the method realizes the conversion of the single treatment mode of the patient into the combined treatment, can continuously and rapidly remove toxic substances in blood, achieves the optimal treatment effect, reduces the treatment times of the patient and saves the medical cost.

2. The single operation pre-flushing time is shortened, and the perfusion device pre-flushing is changed from a manual mode to a machine automatic pre-flushing mode, so that the nursing workload is reduced, the pre-flushing sufficiency is ensured, and the pre-flushing liquid consumption is saved.

3. The operation flow is simplified, the operation is convenient for a single person, the operation time is saved, compared with the independent treatment mode, the operation time of nurses is shortened by 2-4 hours on the basis of unchanged treatment duration of patients, and the working efficiency is improved.

4. The principle of closed pre-flushing and blood return is followed, a separation pipeline and a perfusion device are not needed, the exposure opportunity is reduced, the infection risk is reduced, the blood overflow is effectively avoided, the air can be prevented from entering the extracorporeal circulation, and the air alarm occurrence rate is zero.

5. The blood flow direction is switched by opening and closing the pipeline clamp, the operation of the hemostatic pump is not required to be stopped, and the risk of extracorporeal circulation coagulation of a patient is reduced.

Drawings

Fig. 1 is a schematic perspective view of an integral connecting pipeline special for CRRT+HP.

Fig. 2 is a front view of an integral connecting pipeline special for crrt+hp according to the present utility model.

FIG. 3 is a schematic diagram of a method for connecting CRRT+HP dedicated integrated connecting pipelines.

Detailed Description

The utility model is further described below with reference to examples and with reference to the accompanying drawings.

Reference numerals and components referred to in the drawings are as follows:

1. main line 11 arterial port of main line

111. Main line arterial interface 12 Main line venous Port

121. Main line venous interface 2. First branch line

21. First arterial port 211. First arterial interface

3. Second branch line 31. Second venous port

311. First venous interface 4. Flow limiting clip

Example 1

Referring to fig. 1, fig. 1 is a schematic perspective view of a special integrated connecting pipeline for crrt+hp, wherein the special integrated connecting pipeline for crrt+hp is in a pi-shaped structure, and comprises a main pipeline 1, a first branch pipeline 2 and a second branch pipeline 3; the two ends of the main pipeline 1 are respectively provided with a main pipeline arterial port 11 and a main pipeline venous port 12; the main pipeline arterial port 11 and the main pipeline venous port 12 are respectively and correspondingly provided with a main pipeline arterial port 111 and a main pipeline venous port 121; the middle section of the main pipeline 1 and the first branch pipeline 2 and the second branch pipeline 3 are respectively provided with at least one flow limiting clamp 4; the head end of the first branch pipeline 2 is communicated with the main pipeline 1 body close to the arterial port 11 section of the main pipeline; the tail end of the first branch pipeline 2 is provided with a first arterial port 21; the head end of the second branch pipeline 3 is communicated and connected with the main pipeline 1 body close to the venous port 12 section of the main pipeline; the tail end of the second branch pipeline 3 is provided with a second venous port 31; the first arterial port 21 and the second venous port 31 are respectively provided with a first arterial port 211 and a first venous port 311.

Referring to fig. 2, fig. 2 is a front view of an integral connecting pipeline dedicated to crrt+hp according to the present utility model. The main pipeline 1 has the total length of 280-320mm, preferably 300mm, under the size without the main pipeline arterial interface 111 and the main pipeline venous interface 121; the first branch line 2 and the second branch line 3 have the same length, and the total length is 500-600mm, preferably 550mm, without including the first arterial port 211 and the first venous port 311.

It should be noted that: through be equipped with at least one restriction clamp 4 respectively on main pipeline 1, first pipeline 2 and second pipeline 3, be convenient for open and closed operation realizes the switching of blood flow direction, and through the design of main pipeline arterial port 11, main pipeline venous port 12, first arterial port 21 and the altogether 4 ports of second venous port 31, can carry out screw thread and knob design according to CRRT pipeline interface and perfusion device interface, the guarantee links up closely, and can be applicable to different model CRRT machines and supporting device thereof, thereby can reach the purpose of joint treatment under the circumstances of not dismantling the pipeline, realize closed preshoot and return blood.

Referring to fig. 3, fig. 3 is a schematic diagram of a connection method of the integral connection pipeline special for crrt+hp according to the present utility model; specifically, the connection and the installation of the CRRT pipeline are completed according to a standard operation flow, the special integrated connecting pipeline is connected between the venous outlet end of the dialyzer or the arterial end (1) of the dialyzer and the inlet end of the venous pot or the venous end (2) of the dialyzer, and the branches (3) and (4) at the side ends (namely the first branch pipeline 2 and the second branch pipeline 3) are respectively connected with the arterial end and the venous end of the perfusion device. ( And (3) injection: the connecting parts (1) and (2) of CRRT machines of different models can be slightly different )

The application method of the special integrated connecting pipeline comprises the following steps:

(1) Sealed pre-punching: 3000ml of 0.9% physiological saline is used, all clamps are kept in an open state, 3 times of pre-flushing are completed according to a CRRT standard pre-stamping die, and the dialyzer and the perfusion device are tapped for exhausting in the pre-flushing process.

(2) And (3) feeding: the machine passes the self-inspection, and the blood is introduced for treatment after checking no air bubble.

(3) Closed blood return: after 2h of treatment or treatment target is reached, the infusion pipeline is connected with 1000ml of 0.9% normal saline for blood return, the perfusion device does not need to be disassembled after blood return, treatment is not needed to be suspended, and the CRRT treatment can be continued by directly closing the current limiting clamps on the side branches (3) and (4) (namely the first branch pipeline 2 and the second branch pipeline 3).

The CRRT+HP special integrated connecting pipeline realizes the conversion of a single treatment mode into combined treatment of a patient, can continuously and rapidly remove toxic substances in blood, achieves the optimal treatment effect, can reduce the treatment times of the patient, and saves medical cost; the single-operation pre-flushing time is shortened, and the perfusion device pre-flushing is changed from a manual mode to a machine automatic pre-flushing mode, so that the nursing workload is reduced, the pre-flushing sufficiency is ensured, and the pre-flushing liquid consumption is saved; the operation flow is simplified, the single person operation is convenient, the operation time is saved, compared with the single separate treatment mode, the working time of nurses is shortened by 2-4 hours on the basis of unchanged treatment duration of patients, and the working efficiency is improved; the principle of closed pre-flushing and blood return is followed, a separation pipeline and a perfusion device are not needed, the exposure opportunity is reduced, the infection risk is reduced, the blood overflow is effectively avoided, the air can be prevented from entering the extracorporeal circulation, and the air alarm occurrence rate is zero; the blood flow direction is switched by opening and closing the pipeline clamp, the operation of the hemostatic pump is not required to be stopped, and the risk of extracorporeal circulation coagulation of a patient is reduced.

The foregoing is merely a preferred embodiment of the present utility model and it should be noted that modifications and additions to the present utility model may be made by those skilled in the art without departing from the principles of the present utility model and such modifications and additions are to be considered as well as within the scope of the present utility model.

Claims (5)

1. The integral connecting pipeline special for CRRT and HP is characterized in that the integral connecting pipeline special for CRRT and HP is of a pi-shaped structure, and comprises a main pipeline (1), a first branch pipeline (2) and a second branch pipeline (3); two ends of the main pipeline (1) are respectively provided with a main pipeline arterial port (11) and a main pipeline venous port (12); at least one flow limiting clamp (4) is arranged on the middle section of the main pipeline (1) and the first branch pipeline (2) and the second branch pipeline (3); the head end of the first branch pipeline (2) is communicated with the main pipeline (1) body close to the arterial port (11) section of the main pipeline; the tail end of the first branch pipeline (2) is provided with a first arterial port (21); the head end of the second branch pipeline (3) is communicated with the main pipeline (1) body close to the venous port (12) section of the main pipeline; the tail end of the second branch pipeline (3) is provided with a second venous port (31).

2. The crrt+hp dedicated integrated connection pipe according to claim 1, wherein the main pipe arterial port (11) and the main pipe venous port (12) are respectively provided with a main pipe arterial port (111) and a main pipe venous port (121).

3. The crrt+hp dedicated integrated connection pipe according to claim 1, wherein the first arterial port (21) and the second venous port (31) are respectively provided with a first arterial port (211) and a first venous port (311).

4. The crrt+hp dedicated integrated connection pipe according to claim 1, wherein the main pipe (1) has a total length of 280-320mm in a size excluding the main pipe arterial interface (111) and the main pipe venous interface (121).

5. The crrt+hp dedicated integrated connection pipe according to claim 1, wherein the first branch pipe (2) and the second branch pipe (3) have the same length, and the total length is 500-600mm without the first arterial interface (211) and the first venous interface (311).