CN205215829U - Combined artificial kidney pipeline of annular closed type - Google Patents

Abstract

The utility model discloses an annular closed combined artificial kidney pipeline, which comprises an arterial tube and a closed annular pipeline connected to one end of the arterial tube; wherein, three ring-shaped pipelines are arranged at intervals on the annular pipeline and respectively connected to the annular pipeline. There are two arterial branch lines close to the arterial tube and one venous branch line far away from the arterial tube. The two arterial branch lines are respectively located on both sides of the arterial tube; The pipeline and the venous tributary pipeline are respectively connected with the annular pipeline through a tee. The annular closed combined artificial kidney pipeline is connected with two arterial branch pipelines on the annular pipeline. When connecting, any arterial branch pipeline can be connected to the arterial end of the perfusion device, and the venous branch pipeline is connected to the The venous end of the perfusion device; then connect another arterial branch line to the arterial end of the dialyzer to ensure correct connection, the connection method is simple, and the line is highly identifiable.

Description

Ring closed combined artificial kidney pipeline

technical field

The utility model relates to a blood purification consumable, in particular to an annular closed combined type artificial kidney pipeline.

Background technique

Hemoperfusion and hemodialysis are blood purification technologies that have been rapidly emerging clinically in recent years. The treatment scope has involved kidney disease, acute poisoning, liver disease, critical illness, skin disease and immune disease, etc. With the improvement of people's living standards and the increase of health awareness, blood purification has been widely accepted as a disease treatment method, and the annual usage is increasing.

Currently, dialyzers and perfusion devices are often used in series to treat uremia patients. Usually, combined treatment with hemoperfusion and dialyzer is used first, then the perfusion device is removed after 2 hours, and then dialyzer is used for dialysis for 2 hours. This kind of dialysis treatment can reduce the complications of uremia patients and make up for the defects of simple dialyzer dialysis, which can play a certain positive role, but it often encounters some technical problems in actual operation. For example: (1) The adsorbent in the hemoperfusion device is generally a neutral macroporous adsorbent resin that has been processed by a special process. The hemoperfusion device and the dialyzer are connected in series. Pass through the hemoperfusion device, and then enter the dialyzer through the pipeline, which may cause secondary pollution of the dialyzer by the preflush passing through the perfusion device, and may even affect the effectiveness of the dialyzer. (2) Due to the complex structure of the existing pipelines and the large number of joints in the pipelines, the recognizability is poor, which leads to the medical staff needing to spend a long time identifying the pipeline joints when installing the pipelines, perfusers and dialyzers, Confirm whether the installation is correct, and the connection operation of the existing pipeline is complicated, which increases the time cost of the medical staff.

Contents of the invention

The technical problem to be solved by the utility model is to provide an annular airtight combined artificial kidney pipeline used with a perfusion device and a dialyzer.

In order to achieve the above object, the utility model adopts the following technical solutions:

An annular closed composite artificial kidney circuit, comprising an arterial tube and a closed annular tube connected to one end of the arterial tube;

On the annular pipeline, there are three branch pipelines respectively connected to the circular pipeline, which are two arterial branch pipelines close to the arterial pipeline and one venous branch pipeline far away from the arterial pipeline, The two arterial branch pipelines are respectively located on both sides of the arterial tube;

The arterial tube, the two arterial branch lines, and the venous branch line are respectively connected to the annular line through a tee.

Preferably, it includes a preflush output tube connected to the middle of the venous branch line; one end of the preflush output tube is connected to the middle of the venous branch line through a tee.

Preferably, it also includes a perfusion device and a dialyzer, wherein one end of the arterial branch line away from the annular line is connected to the arterial end of the perfusion device; the venous branch line is far away from the annular line One end of the pipeline is connected to the venous end of the perfuser; the other end of the arterial branch pipeline away from the annular pipeline is connected to the arterial end of the dialyzer.

Wherein preferably, the ends of the two arterial branch lines away from the annular line are respectively provided with red joints; the ends of the venous branch lines away from the annular line are provided with blue joints.

Preferably, the tee is an ordinary tee, and a safety clip is provided on the annular pipeline between the arterial tube and the two arterial branch lines. A safety clip is arranged on the annular pipeline between the venous branch pipelines.

Preferably, one-way valves are respectively arranged on the annular pipelines between the two arterial branch pipelines and the venous branch pipelines, so that the liquid can flow from the venous branch pipelines to the The arterial branch circuit flows in one direction.

Preferably, the tee is an ordinary tee, and a safety clip is provided on the pre-flush output pipe.

Or preferably, the three-way is a flow-controllable cock switch.

Preferably, the arterial tube, the two arterial branch lines, and the end of the venous branch line away from the annular line are respectively provided with protective caps; the pre-flush output tube is far away from the vein One end of the branch pipeline is provided with a protective cap.

Wherein preferably, the end of the preflush output tube away from the venous branch line is connected with a waste fluid buffer bag.

The ring-shaped closed combined artificial kidney pipeline provided by the utility model is symmetrically connected with two arterial branch pipelines on the ring pipeline. Connect the end of the venous branch line away from the annular line to the venous end of the perfusion device; then connect the end of the other arterial branch line away from the ring line to the arterial end of the dialyzer to ensure this The correct connection of the annular closed combined artificial kidney pipeline is simple. In addition, by setting joints of different colors at the ends of the arterial branch pipeline and venous branch pipeline away from the circular pipeline, the recognizability of the pipeline is improved, so that the medical staff can quickly and correctly identify the pipeline connectors when connecting the pipelines. Make connections, shorten time expenditure, and reduce time cost. The annular closed combined artificial kidney pipeline can realize separate preflush perfusator, separate preflush dialyzer, series preflush perfusator and dialyzer, and use perfusator by closing different pipelines. Toggle between tandem therapy with dialyzer and dialysis with dialyzer only.

Description of drawings

Fig. 1 is the structural representation of the ring-shaped closed combined type artificial kidney pipeline provided by the utility model;

Fig. 2 is a schematic diagram of the connection of the annular closed combined artificial kidney pipeline shown in Fig. 1 with the perfusion device and the dialyzer.

detailed description

The technical content of the utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

As shown in FIG. 1 , the annular closed composite artificial kidney pipeline provided by the present invention includes an arterial tube 1 , a closed annular pipeline, two arterial branch lines 2 and 3 , and a venous branch line 4 . Wherein, one end of the arterial tube 1 is connected to the annular pipeline, and there are three branch pipelines connected to the annular pipeline at intervals on the annular pipeline, which are respectively two arterial branch pipelines 2, 3 and one adjacent to the arterial tube 1. The venous branch pipeline 4 is far away from the arterial tube 1 , and the two arterial branch pipelines are respectively located on both sides of the arterial tube 1 . The two arterial branch lines 2 and 3 can be arranged symmetrically on both sides of the arterial tube 1 ; that is, the two arterial branch lines can be respectively connected to symmetrical positions on the annular lines on both sides of the arterial tube 1 .

The arterial tube 1, the arterial branch lines 2 and 3, and the venous branch line 4 are respectively connected to the annular line through a tee. The three-way can be a flow-controllable three-way switch such as a cock, or an ordinary three-way. When using a common tee, a safety clip 11 is provided on the annular pipeline between the arterial tube 1 and the arterial branch pipeline 2, and a safety clamp 11 is provided on the annular pipeline between the arterial branch pipeline 2 and the venous branch pipeline 4. Clip 12, a safety clip 13 is provided on the annular pipeline between the arterial branch line 3 and the venous branch line 4, and a safety clip 14 is set on the annular line between the arterial tube 1 and the arterial branch line 3. Ordinary tees are preferred in this embodiment.

In order to facilitate the identification of the arterial branch lines 2, 3 and the venous branch line 4, red connectors are respectively provided at the ends of the arterial branch lines 2 and 3 away from the annular line; There are blue connectors.

As shown in FIG. 1 , the annular closed composite artificial kidney circuit also includes a preflush outlet tube 5 connected to the middle of the venous branch circuit 4 . One end of the pre-flush output tube 5 is connected to the middle part of the venous branch line 4 through a tee; the other end of the pre-flush output tube 5 is used to connect with a waste liquid buffer bag not shown in the figure, and the waste liquid buffer bag is used for Waste fluid from individual priming cartridges 10 is collected. The three-way can be a flow-controllable three-way switch such as a cock, or an ordinary three-way. When a common tee is used, a safety clip 15 is provided on the preflush output pipe 5 .

In addition, when using a common tee in the above-mentioned pipeline, in order to avoid that when the dialyzer 20 is used for treatment alone, the blood in the treatment seeps back to the arterial branch pipeline connected to the dialyzer 20 to the ring where the safety clip 12 or 13 is located. Between the pipelines, the patient’s blood is wasted, so one-way valves are respectively set on the annular pipeline where the safety clips 12 and 13 are located near the arterial branch pipeline, so that the liquid can flow from the venous branch pipeline to the arterial branch along the circular pipeline The pipeline flows in one direction, and cannot flow in the reverse direction.

The above-mentioned annular closed combined artificial kidney pipeline is packaged and stored separately from the perfusion device and the dialyzer, and the pipeline needs to be connected with the perfusion device and the dialyzer before clinical use.

The annular closed composite artificial kidney pipeline is symmetrically connected with two arterial branch lines 2 and 3 on the annular line, and when connected, the end of any arterial branch line away from the annular line can be connected to the perfusion device 10 The arterial end of the venous branch line 4 is connected to the venous end of the perfusion device 10 away from the annular line; then the other arterial branch line is connected to the arterial end of the dialyzer 20 away from the annular line, and The venous end of the dialyzer 20 is connected to the venous tube 6 to ensure the correct connection of the annular closed combined artificial kidney circuit, and the connection method is simple.

For example, in the connection mode shown in FIG. 2 , the end of the arterial branch line 2 away from the annular line is connected to the arterial end of the perfusion device 10 , and the end of the venous branch line 4 away from the annular line is connected to the perfusion device 10 The vein end of another arterial branch pipeline 3 is then connected to the arterial end of the dialyzer 20 away from the end of the annular pipeline, and the vein end of the dialyzer 20 is connected to the venous tube 6 to realize the annular closed combined artificial kidney The correct connection of tubing with perfusion device 10 and dialyzer 20. Since the arterial branch lines 2 and 3 are arranged symmetrically, when actually connecting the lines, the arterial branch lines 2 and 3 do not have essential differences. The arterial end connection will not cause misoperation, and the operation difficulty is low. In addition, the above-mentioned annular closed combined artificial kidney pipeline improves the recognizability of the pipeline by arranging joints of different colors at the ends of the arterial tributary pipeline 2, 3 and the venous tributary pipeline 4 away from the circular pipeline respectively. It enables the medical staff to quickly and correctly identify and connect the pipeline joints when connecting the pipelines, shortening the time expenditure and reducing the time cost.

In addition, in the annular closed composite artificial kidney circuit, protective caps are respectively provided at the ends of the arterial tube 1 , the arterial branch lines 2 and 3 , and the venous branch line 4 away from the annular line. Moreover, the end of the preflush output tube 5 away from the venous branch line 4 is provided with a protective cap. The aseptic environment inside the pipeline can be ensured by coupling the open end of each pipeline in the annular closed combined artificial kidney pipeline with a protective cap such as a heparin cap.

When the above-mentioned annular closed combined artificial kidney pipeline is connected with the perfusion device 10 and the dialyzer 20, the entire pipeline can be placed in a closed environment. On the one hand, the perfusion device 10 and the dialyzer 20 can be prefilled separately to avoid Potential safety hazards caused by the pollution of the surrounding environment; on the other hand, switching between hemoperfusion and hemodialysis combined treatment and single hemodialysis treatment can be realized in a closed environment.

When the perfusion device 10 is prefilled, the safety clips 12, 13 and 14 are closed, and the safety clips 11 and 15 are opened, and the preflush flows through the arterial tube 1, the annular pipeline where the safety clip 11 is located, and the arterial branch pipeline 2 in sequence. , perfusion device 10, venous branch line 4 and pre-flush output tube 5, and then enter the waste liquid buffer bag connected to one end of pre-flush output tube 5. After the separate pre-flush perfusion device 10 is completed, the safety clip 15 is clamped, and the waste liquid buffer bag is removed from the pre-flush liquid output pipe 5, which can prevent the heavy waste liquid buffer bag from affecting the convenience of subsequent operations.

When the dialyzer 20 is preflushed, the safety clips 11 and 13 are closed, and the preflush flows through the arterial tube 1, the annular pipeline where the safety clip 14 is located, the arterial branch pipeline 3, the dialyzer 20 and the venous tube 6, Enter the waste liquid buffer bag connected to one end of the venous tube 6. After the preflushing of the dialyzer 20 is completed, the safety clips 11 and 13 are opened, and the safety clips 12, 14 and 15 are closed to complete the preflushing of the annular pipeline where the safety clip 13 is located.

After the preflushing is completed, all the safety clips maintain the opening and closing state of the annular pipeline where the preflushing safety clip 13 is located, the arterial tube 1 is connected to the human artery through the puncture needle, and the venous tube 6 is connected to the human vein through the puncture needle. When the combined perfusion and dialysis treatment is started, the blood from the human body flows sequentially through the arterial tube 1, the annular tube where the tube clip 11 is located, the arterial branch line 2, the perfusion device 10, the venous branch line 4, and the annular tube where the safety clip 13 is located. Road, the arterial branch line 3, the dialyzer 20, and the venous tube 6 return to the human body. When it is necessary to isolate the perfusion device after 2 hours of treatment and continue to use the dialyzer 20 for dialysis treatment, close the safety clips 11 and 13, open the safety clip 14, and the blood flows from the arterial tube 1 through the annular pipeline and arterial branch where the safety clip 14 is located. The pipeline 3, the dialyzer 20, and the venous tube 6 return to the human body.

The diameter of the pipeline in the utility model can be 4-10mm, so that the blood volume in the annular closed combined artificial kidney pipeline is less than 400ml, and the preferred pipeline diameter is 4mm. The blood volume is about 350ml.

To sum up, the annular closed combined artificial kidney pipeline provided by the utility model is symmetrically connected with two arterial branch pipelines on the circular pipeline, and any arterial branch pipeline is far away from the end of the circular pipeline when connected. Both can be connected to the arterial end of the perfusion device, connect the end of the venous branch line away from the ring line to the venous end of the perfusion device; then connect the end of the other arterial branch line away from the ring line to the arterial end of the dialyzer , can ensure the correct connection of the annular closed combined artificial kidney pipeline, and the connection method is simple.

In addition, by setting joints of different colors at the ends of the arterial branch pipeline and venous branch pipeline away from the circular pipeline, the recognizability of the pipeline is improved, so that the medical staff can quickly and correctly identify the pipeline connectors when connecting the pipelines. Make connections, shorten time expenditure, and reduce time cost.

The annular closed combined artificial kidney pipeline can realize separate preflush perfusator, separate preflush dialyzer, series preflush perfusator and dialyzer, and use perfusator by closing different pipelines. It can be switched between serial treatment with dialyzer and dialysis with only dialyzer, so as to avoid the problem of the preflush waste liquid of the perfusion device flowing into the dialyzer and contaminating the dialyzer when the preflush canister and the dialyzer are directly connected in series. problems; and avoid the removal of the perfusion device and its pipeline during the dialysis process, resulting in the contamination of the pipeline and the sealing joint.

Of course, in the actual product, there may also be cases where no preflush output tube connected to the venous branch line is provided. There is a switch between the two treatment methods of dialysis by the perfusion device, but it is not possible to pre-flush the perfusion device alone at this time.

In addition, when the preflush output tube is set in the annular closed combined artificial kidney pipeline, after finishing the separate preflush perfusion device, the waste fluid buffer bag connected to it can also be removed under the condition that the pipeline is sealed. , thereby ensuring the safety inside the annular closed combined artificial kidney pipeline, reducing the weight of the annular closed combined artificial kidney pipeline during the dialysis process, and improving the convenience of operation.

The annular closed combined artificial kidney pipeline provided by the present invention has been described in detail above. For those skilled in the art, any obvious changes made to the utility model without departing from the essential spirit of the utility model will fall within the scope of protection of the utility model patent right.

Claims (10)

1. the combined artificial kidney pipeline of annular closed type, is characterized in that:

Comprise arterial and be connected to the closed annulus line of one end of described arterial;

Described annulus line is arranged at intervals with three tributary pipelines be connected with described annulus line respectively, be respectively tremulous pulse tributary pipeline and the vein tributary pipeline away from described arterial of two described arterial of next-door neighbour, two described tremulous pulse tributary pipelines lay respectively at the both sides of described arterial;

Described arterial, two described tremulous pulse tributary pipelines, described vein tributary pipelines are connected with described annulus line respectively by threeway.

2. the combined artificial kidney pipeline of annular closed type as claimed in claim 1, is characterized in that:

Comprise be connected with the middle part of described vein tributary pipeline rush liquid outlet tube in advance; Described one end rushing liquid outlet tube is in advance connected by the middle part of threeway with described vein tributary pipeline.

3. the combined artificial kidney pipeline of annular closed type as claimed in claim 1 or 2, is characterized in that:

Also comprise perfusion device, dialyser and duct of Arantius, wherein, described tremulous pulse tributary pipeline is connected with the arterial end of described perfusion device away from one end of described annulus line; Described vein tributary pipeline is connected with the vein end of described perfusion device away from one end of described annulus line; Described in another, tremulous pulse tributary pipeline is connected with the arterial end of described dialyser away from one end of described annulus line, and duct of Arantius is connected with the vein end of dialyser.

4. the combined artificial kidney pipeline of annular closed type as claimed in claim 1, is characterized in that:

Two described tremulous pulse tributary pipelines are respectively arranged with red joint away from one end of described annulus line;

Described vein tributary pipeline is provided with blue joint away from one end of described annulus line.

5. the combined artificial kidney pipeline of annular closed type as claimed in claim 1, is characterized in that:

Described threeway is common threeway, the annulus line between described arterial and two described tremulous pulse tributary pipelines is provided with safety clamp, the annulus line between two described tremulous pulse tributary pipelines and described vein tributary pipeline is provided with safety clamp.

6. the combined artificial kidney pipeline of annular closed type as claimed in claim 5, is characterized in that:

Annulus line between two described tremulous pulse tributary pipelines and described vein tributary pipeline is respectively arranged with check valve, for make liquid can annularly pipeline from described vein tributary pipeline to described tremulous pulse tributary pipeline one-way flow.

7. the combined artificial kidney pipeline of annular closed type as claimed in claim 2, is characterized in that:

Described threeway is common threeway, and described punching in advance on liquid outlet tube is provided with safety clamp.

8. the combined artificial kidney pipeline of annular closed type as claimed in claim 1 or 2, is characterized in that:

Described threeway is the cock switch of controllable flow rate.

9. the combined artificial kidney pipeline of annular closed type as claimed in claim 2, is characterized in that:

Described arterial, two described tremulous pulse tributary pipelines, described vein tributary pipelines are respectively arranged with protective cap away from one end of described annulus line;

The described liquid outlet tube that rushes in advance is provided with protective cap away from one end of described vein tributary pipeline.

10. the combined artificial kidney pipeline of annular closed type as claimed in claim 2, is characterized in that:

The described liquid outlet tube that rushes in advance is connected with waste liquid bumping bag away from one end of described vein tributary pipeline.