CN204601213U - Hemodialysis flow-control pipeline - Google Patents
Hemodialysis flow-control pipeline Download PDFInfo
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- CN204601213U CN204601213U CN201520241568.2U CN201520241568U CN204601213U CN 204601213 U CN204601213 U CN 204601213U CN 201520241568 U CN201520241568 U CN 201520241568U CN 204601213 U CN204601213 U CN 204601213U
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- hydraulic accumulator
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- dialyser
- control valve
- blood
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Abstract
This utility model relates to a kind of hemodialysis flow-control pipeline, belongs to dialysis system field.Comprise arterial end, vein end, dialyser and blood pump, arterial end, blood pump, dialyser are communicated with by flexible pipe successively with vein end, hydraulic accumulator is provided with between blood pump and dialyser, one-way control valve and flow control valve is provided with in hydraulic accumulator, one-way control valve is communicated with blood pump by flexible pipe, and flow control valve is communicated with dialyser by flexible pipe; Hydraulic accumulator is provided with scale; Also level monitoring device is provided with in hydraulic accumulator; Pressure automatic adjusting device is provided with in hydraulic accumulator.This utility model ensure that the blood flow being input to dialyser from human body artery end is stablized constant, and structure is simple, and easy to use, improve the quality of hemodialysis, this utility model is mainly used in hemodialysis.
Description
Technical field
This utility model relates to a kind of hemodialysis flow-control pipeline, belongs to dialysis system field.
Background technology
Hemodialysis is mainly to a kind of mode of acute or chronic renal failure kidneys of patients replacement therapy, it is by being drained to external by body inner blood, through one by the dialyser formed without several hollow fibre, blood to containing the similar electrolyte solution (dialysis solution) of body concentration inside and outside hollow fibre one by one, mass exchange is carried out, the metabolic waste in purged body, maintenance electrolyte and acid-base balance by disperse/convection current; Simultaneously too much in purged body moisture, and by a process of the blood recovery through purification.
Recent years, because patient populations increases year by year, prescription in whole therapeutic process is also progressively improved, in existing haemodialysis control unit use procedure, due to the impact of the various factors such as human body or environment, cause the blood flow instability that human body artery end enters dialyser, blood flow fluctuated, is certain to have a huge impact the effect of hemodialysis; In the dialysis procedure reaching four hours, the pump line of pipeline causes blood flow unstable because the extruding of blood pump can deform in addition, and instability of flow can affect dialysis-effect and bring discomfort to be therefore badly in need of a kind of pipeline of stability of flow that makes to dialysis patient and solve this problem.
Utility model content
The purpose of this utility model is to provide a kind of hemodialysis flow-control pipeline, ensure that the blood flow being input to dialyser from human body artery end is stablized constant, eliminate the extruding of blood pump to the impact of pump line, and structure is simple, easy to use, improve the quality of hemodialysis.
Hemodialysis flow-control pipeline described in the utility model, comprise arterial end, vein end, dialyser and blood pump, arterial end, blood pump, dialyser are communicated with by flexible pipe successively with vein end, hydraulic accumulator is provided with between blood pump and dialyser, one-way control valve and flow control valve is provided with in hydraulic accumulator, one-way control valve is communicated with blood pump by flexible pipe, and flow control valve is communicated with dialyser by flexible pipe.Hydraulic accumulator plays the effect of a buffer memory, the blood that buffer memory is certain, thus in ensureing the pipeline that accumulator outlet is communicated with dialyser, the supply that blood flow can be constant and stable; One-way control valve ensures that blood is flowed to hydraulic accumulator single direction by human body, and what flow control valve guarantee blood can be stable flows to dialyser.
Described hydraulic accumulator is provided with scale, conveniently determines the number of blood storage amount.
Being provided with level monitoring device in described hydraulic accumulator, when arriving each appointment liquid level, all having corresponding prompting, carry out next step operation according to prompting.
Be provided with pressure automatic adjusting device in described hydraulic accumulator, be used for regulating the pressure in hydraulic accumulator.
This utility model compared with prior art, has following beneficial effect:
One: this utility model can ensure that the blood flow being input to dialyser from human body artery end is stablized constant, improves the quality of hemodialysis;
Two: this utility model can be connected directly between the port of export of blood pump, the blood therefore squeezed out from blood pump has directly entered into hydraulic accumulator, then exports by hydraulic accumulator is stable, eliminates the extruding of blood pump to pump line, prevents pump line to be out of shape;
Three: this utility model structure is simple, directly operates on flexible pipe, does not need to change original connected mode, so install and use very convenient during installation.
Accompanying drawing explanation
Fig. 1, loop of the present utility model connection scheme schematic diagram.
In figure: dialysis solution outlet 5, dialyser 6, flow control valve 7, blood pump 8, hydraulic accumulator 9, one-way control valve 1, after arterial end 2, vein end 3, dialysis solution inlet tube 4, exchange.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is described further.
As shown in the figure, hemodialysis flow-control pipeline described in the utility model, comprise arterial end 1, vein end 2, dialyser 5 and blood pump 7, arterial end 1, blood pump 7, dialyser 5 are communicated with by flexible pipe successively with vein end 2, hydraulic accumulator 8 is provided with between blood pump 7 and dialyser 5, be provided with one-way control valve 9 and flow control valve 6 in hydraulic accumulator 8, one-way control valve 9 is communicated with blood pump 7 by flexible pipe, and flow control valve 6 is communicated with dialyser 5 by flexible pipe; Hydraulic accumulator 8 is provided with scale; Also level monitoring device is provided with in hydraulic accumulator 8; Pressure automatic adjusting device is provided with in hydraulic accumulator 8.
When doing hemodialysis, its process is: we first do hydraulic accumulator 8 and set, and we, by the adjustment to level monitoring device, set a rational buffer memory liquid level, and hydraulic accumulator 8 is placed on rational position, wherein liquid can be made to flow to outflow smoothly; Next regulates the pressure automatic adjusting device in hydraulic accumulator 8, and pressure automatic adjusting device can make the pressure in hydraulic accumulator 8 reach optimum pressure state needed for work; Finally by flow control valve 6, the rate of discharge of hydraulic accumulator 8 is adjusted to identical with the meansigma methods of the porch flow of hydraulic accumulator 8, and closes the outlet of hydraulic accumulator 8.Just press shown in Fig. 1 after all settings are ready, various piece is in turn connected into loop by flexible pipe, now blood intravascular path enters into extracorporeal circulation, under the promotion of blood pump 7, enter into hydraulic accumulator 8, due to the control of one-way control valve 9, blood can only flow into hydraulic accumulator 8 from blood pump 7 side is unidirectional.Due to now hydraulic accumulator 8 port closing, the liquid level of blood just raises gradually in hydraulic accumulator 8, when after the liquid level arriving setting, level monitoring device plays a role, have corresponding prompting, at this moment open hydraulic accumulator 8 to export, due to the control of flow control valve 6, can ensure that the blood flow flowed out from hydraulic accumulator 8 is constant, thus stable enter into dialyser 5, in dialyser 5, dialysis solution enters into dialyser 5 by dialysis solution inlet tube 3, after completing mass exchange with blood, dialysis solution waste liquid discharged by dialysis solution outlet 4 after exchanging, blood after dialysis, human body is entered into through vein end, whole process completes, for the blood of buffer memory in hydraulic accumulator 8, finally also can turn back in the body of people completely.
Here it should be explained that: 1. hydraulic accumulator 8 has scale value, easily determine the number of blood storage amount, and have switch at the port of export of hydraulic accumulator 8, the effect of this switch is the blood flow volume guaranteeing to reach wanted buffer memory, 2. flow control valve 6 used, directly selects a kind of valve body that can set fixed flow value from prior art, sets required flow to facilitate people, 3. the size of the porch flow meansigma methods of hydraulic accumulator 8, need to be recorded by the means of science, thus numerical value is identical therewith to remove adjust flux control valve 6, 4. from the blood that human body flows out, its flow flowing into exterior line from health is impossible constant, affect a lot of because have of this, comprise human body self or environmental factors etc., therefore, allow it first flow in hydraulic accumulator 8 be cached, when reaching the flow needing buffer memory, open the port of export switch of hydraulic accumulator 8, now the exit flow of hydraulic accumulator 8 is identical with the meansigma methods of hydraulic accumulator 8 porch flow, because the blood flow outbound flowed from human body is fluctuated, cause hydraulic accumulator 8 porch instability of flow, so this part blood in hydraulic accumulator 8, its liquid level can fluctuate, but be keep balance generally, key is the effect due to flow control valve 6, its blood flowed out from hydraulic accumulator 8, flow is stable, 5. owing to there being liquid level monitoring device to exist, when arriving us and wanting the blood flow volume of buffer memory, have corresponding prompting, we just open the outlet of hydraulic accumulator 8, and the circulation of whole loop is got up, normal work, in addition we are also provided with the highest and minimum liquid level monitoring, and when liquid level is abnormal, it also has corresponding prompting, thus carry out next step operation according to prompting, avoid dangerous generation, 6. one-way control valve 9 and level monitoring device all from prior art select can realize described in function.
Claims (4)
1. a hemodialysis flow-control pipeline, comprise arterial end (1), vein end (2), dialyser (5) and blood pump (7), described arterial end (1), blood pump (7), dialyser (5) are communicated with by flexible pipe successively with vein end (2), it is characterized in that: between blood pump (7) and dialyser (5), be provided with hydraulic accumulator (8);
One-way control valve (9) and flow control valve (6) is provided with in described hydraulic accumulator (8), one-way control valve (9) is communicated with blood pump (7) by flexible pipe, and flow control valve (6) is communicated with dialyser (5) by flexible pipe.
2. hemodialysis flow-control pipeline according to claim 1, is characterized in that: described hydraulic accumulator (8) is provided with scale.
3. hemodialysis flow-control pipeline according to claim 1, is characterized in that: be provided with level monitoring device in described hydraulic accumulator (8).
4. hemodialysis flow-control pipeline according to claim 1, is characterized in that: be provided with pressure automatic adjusting device in described hydraulic accumulator (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520241568.2U CN204601213U (en) | 2015-04-18 | 2015-04-18 | Hemodialysis flow-control pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520241568.2U CN204601213U (en) | 2015-04-18 | 2015-04-18 | Hemodialysis flow-control pipeline |
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| Publication Number | Publication Date |
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| CN204601213U true CN204601213U (en) | 2015-09-02 |
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| CN201520241568.2U Active CN204601213U (en) | 2015-04-18 | 2015-04-18 | Hemodialysis flow-control pipeline |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111529785A (en) * | 2020-05-20 | 2020-08-14 | 浙江大学 | Dialysis machine capable of adjusting blood flow |
| CN112807503A (en) * | 2020-07-28 | 2021-05-18 | 高艳云 | Dialysis mode adjustment system using numerical analysis |
-
2015
- 2015-04-18 CN CN201520241568.2U patent/CN204601213U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111529785A (en) * | 2020-05-20 | 2020-08-14 | 浙江大学 | Dialysis machine capable of adjusting blood flow |
| CN111529785B (en) * | 2020-05-20 | 2021-06-11 | 浙江大学 | Dialysis machine capable of adjusting blood flow |
| CN112807503A (en) * | 2020-07-28 | 2021-05-18 | 高艳云 | Dialysis mode adjustment system using numerical analysis |
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