CN201324401Y

CN201324401Y - Flow capacity control device of medical transfusion/discharge system

Info

Publication number: CN201324401Y
Application number: CNU200820177898XU
Authority: CN
Inventors: 张宇; 宋鸿鹏; 殷安凡; 贾振飞; 牛志颖
Original assignee: SHUANGHE PHARMACEUTICAL CO Ltd BEIJING
Current assignee: China Resources Double Crane Pharmaceutical Co Ltd
Priority date: 2008-11-25
Filing date: 2008-11-25
Publication date: 2009-10-14
Anticipated expiration: 2018-11-25

Abstract

The utility model provides a flow capacity control device of medical transfusion/discharge system, which does not need to observe flowing situation of medical solution in a pipeline for adjusting. The flow capacity control device of medical transfusion/discharge system comprises a pipe clamp and an idler wheel arranged in the pipe clamp, wherein the pipe clamp is provided with a pipeline channel for a pipeline to pass through, the idler wheel has a shaft body which protrudes to the side surface of the idler wheel, the pipe clamp is provided with an idler wheel slideway for the shaft body to slide, and the idler wheel slideway is at least provided with a spacing groove. The idler wheel slides to change the flowing section of the pipeline, thereby realizing the opening, the closing and flow capacity adjusting of the pipeline, as the spacing groove is arranged on the idler wheel slideway, when the idler wheel slides to the spacing groove, the shaft body can slide into the spacing groove, which provides users with hand feeling, and does not need to observe the flowing situation of medical solution in the pipeline for adjusting. The utility model is simple and convenient in the opening, the closing and the flowing capacity adjusting operations of the transfusion/discharge pipeline, and improves the safety and the reliability.

Description

The volume control device of medical input/drain system

Technical field

This utility model relates to a kind of medical input/drain system, the volume control device of particularly a kind of medical input/drain system.

Background technology

Peritoneal dialysis especially is non-bed peritoneal dialysis (CAPD) as one of three big replacement therapy methods of end stage renal failure patient, because CAPD patient can treat after training at home voluntarily, need not to be in hospital, the patient lives and is similar to the normal person, medical expense is cheap relatively, be particularly suitable for the national conditions of our country, be worth promoting.For CAPD patient, need by nozzle stub, dialyzate bag and the peritoneal dialysis catheter that implants are formed a fluid exchange system.Earlier dialysis solution is imported in the abdominal cavity, be detained 4-5 hour, will from the abdominal cavity, draw through the liquid of fully dialysing again.The patient need carry out for several times such fluid exchange every day, need repeatedly change dialyzate bag.In this operating process, require transfusion/discharge line folding, close with Flow-rate adjustment simple to operation, and safe and reliable.

Present known disposable infusion system and carry out the pipeline in the input/drain system of above-mentioned dialysis folding, to close with medicinal liquid flow be to control by the roller pipe clamp on the pipeline, principle is that the frictional resistance by roller and infusion pipeline compresses pipeline gradually.In operating process, must regulate roller clamp by the careful flow condition of observing the medicinal liquid in the pipeline and control.The patient often needs nurse or entourage monitoring and operation in the process of infusion or discharge medicinal liquid, be to manipulate in hospital mostly.

In the folding that comes control piper by the roller pipe clamp, close in the use with medicinal liquid flow and need operator's bimanualness, and can not be only with feel, also need examine the flow condition of pipeline herb liquid, determine the position of roller with respect to pipeline, use inconvenience, especially under situation, judge the very inconvenience of mobility status of pipeline herb liquid as insufficient lights such as night, cloudy daies.In this case, to having relatively high expectations of operator, also greatly limited popularizing of CAPD.

The utility model content

The technical problems to be solved in the utility model provides the volume control device of a kind of medical input/drain system, when using this volume control device, can make pipeline folding, close with Flow-rate adjustment and control with feel, need not again to decide by the flow condition of observing the pipeline herb liquid.

For addressing the above problem, this utility model provides the volume control device of a kind of medical input/drain system, have pipe clamp and be located at the interior roller of pipe clamp, be provided with the pipe passage that passes through for pipeline in the described pipe clamp, described roller has the roller axis body, has the roller slideway that described axis body can be slided therein in the described pipe clamp, when described roller slides in the roller passage, by cooperate the extruding pipeline with described pipe passage of defining of pipe clamp and the sidewall relative with roller, thereby the fluid flow in the adjusting pipeline, it is characterized in that, be provided with at least one roller shaft body on the roller slideway at least and can slip into wherein limited impression.

At the flow section of slider roller with the change pipeline, and then realize the folding of pipeline, when closing with Flow-rate adjustment, owing on the roller slideway, be provided with limited impression, therefore when roller slides into this limited impression, its axis body can slip in this limited impression, give user with feel, need not again to decide by the flow condition of observation pipeline herb liquid.Correspondingly, can one or more limited impressions be set, to form maximum stream flow, partial discharge and zero delivery corresponding to different pipeline flow sections on the roller slideway.User can clearly be learnt the flow of liquid in the pipeline by feel, thus improved transfusion/discharge line folding, close the simple and convenient and security reliability with Flow-rate adjustment operation.

As a kind of improvement of the present utility model, the described parallel sidewalls that defines the roller slideway of described roller slideway and described pipe clamp, described limited impression is a plurality of, and the position corresponding to described limited impression on the described sidewall that defines the roller slideway of described pipe clamp is provided with highly different projectioies.

Like this, when roller slided into limited impression, its axis body slipped in this limited impression, gave user with feel, and because of the height difference of projection, then the pipeline flow section of this position is also different, also can be set to maximum stream flow, partial discharge and zero delivery simultaneously.User can clearly be learnt the flow of liquid in the pipeline by feel equally, thus improved transfusion/discharge line folding, close the simple and convenient and security reliability with Flow-rate adjustment operation.

As another kind of improvement the of the present utility model, the described sidewall that defines the roller slideway of described roller slideway and described pipe clamp tilts mutually.

Like this, when roller slides into limited impression, its axis body slips in this limited impression, give user with feel, tilt mutually simultaneously because of roller slideway and described pipe passage, therefore roller gradually change pipeline cross-sectional flow area in sliding process then is that the relevant position of maximum stream flow, partial discharge and zero delivery is provided with limited impression at fluid flow.User can clearly be learnt the flow of liquid in the pipeline by feel equally, thus improved transfusion/discharge line folding, close the simple and convenient and security reliability with Flow-rate adjustment operation.

Moreover the axial section of limited impression of the present utility model can be set to circular arc or rectangle.The feel of user be can further strengthen by such shaped design, and then its convenience and security reliability improved.

Description of drawings

Fig. 1 a, 1b are that this utility model is applied in the sketch map in the input/drain system of peritoneal dialysis;

Fig. 2 is the axonometric chart of volume control device of the present utility model;

Fig. 3 is the cross-sectional schematic of pipe clamp embodiment illustrated in fig. 1;

Fig. 4 is the cross-sectional schematic of the pipe clamp of another embodiment of the present utility model;

Fig. 5 is the cross-sectional schematic of the pipe clamp of an embodiment more of the present utility model.

The specific embodiment

Below, in conjunction with the accompanying drawings embodiment of the present utility model is elaborated.

As shown in Figure 1, volume control device of the present utility model is applied in the input/drain system of a peritoneal dialysis, and this volume control device also can be applicable in the known disposable infusion system certainly.Shown in Fig. 1 (a), dialyzate bag 13 and the peritoneal dialysis catheter 12 that implants are formed a fluid exchange system.By pipeline 17 dialysis solution is imported in the abdominal cavity earlier, be detained 4-5 hour.Shown in Fig. 1 (b), will draw from the abdominal cavity by peritoneal dialysis catheter 12 and pipeline 18 for another example, flow in the waste fluid bag 14 through the liquid of fully dialysing.The patient need carry out for several times such fluid exchange every day, need repeatedly change dialyzate bag.In this operating process, require transfusion/discharge line folding, close with Flow-rate adjustment simple to operation, and safe and reliable, volume control device 3 of the present utility model then is arranged on the folding that is used for controlling transfusion/discharge line in the pipeline 17/18 in this fluid exchange system, closes and Flow-rate adjustment.

Fig. 2 shows the schematic perspective view of above-mentioned volume control device 3, it has pipe clamp 31 and the roller of being located in the pipe clamp 31 32, be provided with the pipe passage 33 that passes through for pipeline in the described pipe clamp 31, described roller 32 has roller axis body (not shown), described pipe clamp 31 has the roller slideway 34 that described axis body can be slided therein, and the roller slideway extends along the direction that pipeline passes pipe clamp.Like this when the roller axis body slides in roller slideway 34, the sidewall relative with roller, that define pipe passage 33 of roller and pipe clamp 31 cooperates, by extruding in various degree, realize the folding and the Flow-rate adjustment of pipeline to the pipeline between this sidewall and roller.

This roller passage 34 is walked direction along pipeline and is provided with a plurality of limited impressions 34.When the roller axis body slips into this limited impression 34, provide the indication of corresponding discharge.Below how exemplary description is realized the flow indication.

In cross-sectional schematic shown in Figure 3 as can be seen, described roller slideway 34 tilts mutually with the described sidewall that defines the roller slideway of described pipe clamp, when thereby roller slides along roller passage 34 (end that for example never pushes pipeline is towards the other end), roller cooperates with the described sidewall of roller clip and pushes pipeline gradually, thereby reduce the sectional area of pipeline, the fluid flow of restricted passage pipeline.When the axis body of roller 32 slided into limited impression 35, its axis body slipped in this limited impression 35, and gave user with stronger feel.The axial section of this limited impression 35 for example can be set to circular arc, when conveniently slipping into and skidding off, further strengthens the feel of user, and then improves its convenience and security reliability.Roller 32 gradually cross-sectional flow area of change pipeline in sliding process is that the relevant position of maximum stream flow, 1/2 flow and zero delivery is provided with three limited impressions 35 at fluid flow.Can certainly locate to be provided with limited impression 35 at 1/3 flow, 1/4 flow etc., therefore the groove of indication corresponding discharge can be set according to actual needs.

In the cross-sectional schematic of another embodiment of this utility model shown in Figure 4 as can be seen, the described parallel sidewalls that defines the roller slideway of roller slideway 34 and described pipe clamp, be provided with protruding 36 in position on the sidewall that defines described roller slideway 34 of pipe clamp simultaneously corresponding to described limited impression 35, projection 36 height can be set to slide into limited impression 35 in roller cooperates and pushes pipeline, make fluid flow be respectively maximum stream flow, 1/2 flow and zero delivery.When the axis body of roller 32 slided into limited impression 35, its axis body is distinguishable to be slipped in the limited impression 35, gave user with feel, roller 32 in sliding process its outer with protruding 36 between the cross-sectional flow area apart from the change pipeline.Can certainly locate to be provided with limited impression 35 and projection 36 at 1/3 flow, 1/4 flow etc., the quantity of groove 35 and projection 36 neither be fixed simultaneously, and can set with service condition as required.

In the embodiment shown in fig. 5, it is identical that other feature and the foregoing description are, and the axial section of different is limited impression 35 is set to rectangle, also gives user with stronger feel when conveniently slipping into and skidding off.

Above-described embodiment; only be to be used to explain this utility model; to this utility model is illustrative; rather than it is restrictive; in spiritual scope of the present utility model; can also carry out multiple variation, produce numerous embodiments, such change all should fall into the protection domain that this utility model requires.

Claims

1. the volume control device of a medical input/drain system, have pipe clamp and be located at the interior roller of pipe clamp, be provided with the pipe passage that passes through for pipeline in the described pipe clamp, described roller has the roller axis body, has the roller slideway that described axis body can be slided therein in the described pipe clamp, when described roller slides in the roller passage, by cooperate the extruding pipeline with described pipe passage of defining of pipe clamp and the sidewall relative with roller, thereby the fluid flow in the adjusting pipeline, it is characterized in that, be provided with at least one roller shaft body along the roller slideway and can slip into wherein limited impression.

2. the volume control device of medical input/drain as claimed in claim 1 system, it is characterized in that, the described parallel sidewalls that defines the roller slideway of described roller slideway and described pipe clamp, described limited impression is a plurality of, and the position corresponding to described limited impression on the described sidewall that defines the roller slideway of described pipe clamp is provided with highly different projectioies.

3. the volume control device of medical input/drain as claimed in claim 1 system is characterized in that the described sidewall that defines the roller slideway of described roller slideway and described pipe clamp tilts mutually.

4. as the volume control device of claim 1,2 or 3 described medical input/drain systems, it is characterized in that described limited impression is three.

5. as the volume control device of claim 1,2 or 3 described medical input/drain systems, it is characterized in that the axial section of described limited impression is a circular arc.

6. the volume control device of medical input/drain as claimed in claim 4 system, the axial section that it is characterized in that described limited impression is a circular arc.

7. as the volume control device of claim 1,2 or 3 arbitrary described medical input/drain systems, the axial section that it is characterized in that described limited impression is a rectangle.

8. the volume control device of medical input/drain as claimed in claim 4 system, the axial section that it is characterized in that described limited impression is a rectangle.