CN205413770U - A device for rinsing sampling needle - Google Patents

Abstract

The utility model discloses a device for rinsing sampling needle has the needle of washing ware, wash the drain pipe that the needle ware includes upper portion big -end -up's the vertical form of conical cavity and lower part, conical cavity's upper end is uncovered, is provided with the inlet of washing liquid on this conical cavity's the lateral wall, and the internal surface of lateral wall process polishing treatment, conical cavity's lower extreme and drain pipe intercommunication, and the axial lead of conical cavity's axial lead and drain pipe is point -blank the inner wall of drain pipe is provided with the helical shape recess, by drain pipe upper portion down, spiral groove's degree of depth value is crescent. The utility model discloses having the washing great efforts, wasing fastly, the cleaning performance is contamination free effect just well, and the condition that can also cooperate the washing liquid to enter into the purger simultaneously changes conical cavity's the contained angle and the thickness of drain pipe and further improves abluent effect.

Description

For cleaning the device of sampling needle

Technical field

This utility model relates to medical instruments field, particularly relates to a kind of device for cleaning sampling needle.

Background technology

Blood rheological instrument is a kind of medical machinery for checking blood viscosity.Blood rheological instrument needs successively invisible spectro blood to be carried out sampling processing with sampling needle in the course of the work, and sampling is required to instrument and automatically cleans sampling needle every time.

At present, on blood rheological instrument, the cleaning way of various sampling needles typically has bubble type, spring formula and scrapes formula three kinds.Three kinds of cleaning ways are provided with washer, and sampling needle have passed through washer, and when cleaning, sampling needle also can be moved back and forth up and down by the control of computer.Bubble type and spring formula have the obvious shortcomings such as cleaning does not washes clean slowly, clearly, and spring formula is cleaned and also needed more cleanout fluid；Although the formula that scrapes is cleaned fast, but the shortcoming just having sample material residual after there is cleaning a period of time and polluting.

Utility model content

Because the drawbacks described above of prior art, technical problem to be solved in the utility model is to provide a kind of device for cleaning sampling needle.

Technical solutions of the utility model are as follows: a kind of device for cleaning sampling needle, have and wash pin device, described pin device of washing includes the up big and down small conical bores in top and the drain pipe of lower vertical shape, the upper end of conical bores is uncovered, the inlet of cleanout fluid it is provided with on the sidewall of this conical bores, and the inner surface of conical bores is burnishing surface, the lower end of described conical bores connects with drain pipe, the axial line of conical bores is with the axial line of drain pipe point-blank, inwall at described drain pipe is provided with spiral groove, the degree of depth of this groove is gradually increased from top to bottom along with the hand of spiral.

Using above technical scheme, sampling needle moves along the axis of conical bores and drain pipe, is cleaned by the cleanout fluid entered on sidewall when moving in conical bores and drain pipe.Either cleanout fluid passes through inlet, or is discharged by drain pipe, all by being arranged at the pumping action of its exterior line.Under the pressure effect of pump, cleanout fluid is poured in conical cavity body by inlet, under inertia and action of gravity, rotational flow is understood the when that cleanout fluid flowing to conical bores, the polished conical bores inner surface processed, due to smooth, is more beneficial for the flowing of cleanout fluid and less cleanout fluid adhesion on an internal surface.Entering into the cleanout fluid mid portion flow velocity in conical cavity body the fastest, conical bores edge, because resistance flow velocity is the slowest, can automatically form whirlpool, and circinate cleanout fluid fluid has bigger scouring force to sampling needle so that sampling needle is cleaned by cleaner.Meanwhile, on drain pipe pipeline, clean the cleanout fluid of sampling needle under the spiral groove positive action of drawing liquid pump and drain pipe inwall, cleanout fluid rotational flow, form revolving force, then drive the liquid in rotation of whole vertical portion to twist.The degree of depth of spiral groove increases the most successively along drain pipe so that spiral groove is connected more smoothes out with the cavity of cone, is unlikely to produce bigger retardation.

This utility model make use of the setting of the spiral groove on conical bores and drain pipe, making cleanout fluid is that sampling needle is carried out by swirling, there is because current more smooth out the effect cleaning great efforts, also have cleaning speed fast, the good and free of contamination beneficial effect of cleaning performance simultaneously.

Further, the sidewall of described conical bores is 30 °-70 ° with the angular range of horizontal plane.There is identical flushing dynamics and angle enters into conical bores at cleanout fluid, when the sidewall of conical bores has different angles from horizontal plane, the swirl shape current that emergency degree is different can be produced, thus the scouring force that has is the most different, so the needs that can control according to reality, use the conical bores of different angle.

Further, the internal diameter of described drain pipe is 4mm-8mm.The sampling needle diameter of blood rheological instrument on the market is mostly 2mm, internal diameter be the drain pipe of 4mm-8mm be the gap that sampling needle and drain pipe inwall leave a suitable width, cleanout fluid can be made to contact with sampling needle well, be unlikely to again to lean on to hold together to affect the cleaning of sampling needle very much.

Provide the benefit that: this utility model is reasonable in design, simple in construction, be prone to processing and fabricating, low cost, meet cleaning great efforts, cleaning speed is fast, good and the free of contamination effect of cleaning performance, can also be coupled to cleanout fluid simultaneously and enter into the situation of washer, the thickness of the angle and drain pipe that change conical bores improves the effect of cleaning further.

Accompanying drawing explanation

Fig. 1 is the structural representation of this utility model one detailed description of the invention.

1-washes pin device, 1a-conical bores, 1b-drain pipe, 1c-inlet, 1d-groove, A-horizontal line.

Detailed description of the invention

The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings.

It is made up of as it is shown in figure 1, wash pin device 1 the drain pipe 1b of the up big and down small conical bores 1a in top and lower vertical shape.Wherein, the upper end of conical bores 1a is uncovered, and the sidewall of this conical bores 1a is provided with the inlet 1c of cleanout fluid, and sidewall keeps the angular range of 30 °-70 ° with horizontal line A, and the present embodiment is preferably 60 °.The inner surface of the sidewall of conical bores 1a also have passed through polishing, for burnishing surface.The lower end of conical bores 1a is communicated as one with drain pipe 1b, and the axial line of the axial line of conical bores 1a and drain pipe 1b is point-blank.The inside diameter ranges of drain pipe 1b is 4mm-8mm, and the present embodiment is preferably arranged to 6mm, and its inwall is provided with spiral groove 1d, and the depth value of spiral groove 1d is gradually increased from top to bottom along with the hand of spiral.

As it is shown in figure 1, the sampling needle that circular tube shaped thing is blood rheological instrument washed in pin device 1, sampling needle moves along the axis of conical bores 1a and drain pipe 1b, is cleaned by the cleanout fluid entered on sidewall when moving in conical bores 1a and drain pipe 1b.Either cleanout fluid passes through inlet 1c, or is discharged by drain pipe 1b, all by being arranged at the pumping action of the pipeline outside inlet 1c and drain pipe 1b.Cleanout fluid is poured in conical bores 1a by inlet 1c, under inertia and action of gravity, rotational flow is understood the when that cleanout fluid flowing to, the polished conical bores 1a inner surface processed is due to smooth so that easily facilitate the flowing of cleanout fluid and less cleanout fluid adhesion on an internal surface.Enter into the cleanout fluid mid portion flow velocity in conical bores 1a the fastest, conical bores 1a edge is because resistance flow velocity is the slowest, can automatically form whirlpool, circinate cleanout fluid fluid has bigger scouring force to sampling needle so that sampling needle is cleaned by cleaner.Additionally, in the present embodiment, sidewall and the horizontal angle of conical bores 1a are 60 °, from physical principle, different angle values can be brought the different active forces flowed down along sidewall to cleanout fluid, and then can produce the liquid stream whirlpool with 60 ° of angle respective intensities in the present embodiment.Meanwhile, on the pipeline of drain pipe 1b, having cleaned the cleanout fluid of sampling needle under the spiral groove 1d positive action of drawing liquid pump and the inwall of drain pipe 1b, liquid level rotates, and forms revolving force, then drives the liquid in rotation of whole vertical portion to twist.The degree of depth of spiral groove 1d increases the most successively along drain pipe 1b so that spiral groove 1d is connected with conical bores 1a and more smoothes out, and is unlikely to produce bigger retardation.In the present embodiment, the space of 6mm, so about 2mm between sampling needle and drain pipe 1b that the internal diameter of drain pipe 1b is selected is passed through for cleanout fluid and produces liquid stream whirlpool.

In specific implementation process, open the liquid feeding pump on the pipeline of inlet 1c, liquid feeding pump starts to be pressed into cleanout fluid in conical bores 1a, the inwall rushing at conical bores 1a with the cleanout fluid of certain speed starts to produce whirlpool liquid stream, and be fully contacted with the sampling needle entered in washer 1, generation is washed away.Due to action of gravity, cleanout fluid meeting nature flow down, enter in drain pipe 1b.Due to the guide functions of the spiral groove 1d in drain pipe 1b, adding the drawing liquid pump swabbing action to cleanout fluid, cleanout fluid swirling disturbance in drain pipe 1b can strengthen, and produces the scouring force bigger to sampling needle.Simultaneously because the bigger swabbing action of drawing liquid pump and conical bores 1a inner wall smooth, the cleanout fluid in conical bores 1a can be arranged cleaner.

Sampling needle after the washer in the present embodiment cleans is the most pollution-free, and cleaning process is the quickest.

Preferred embodiment of the present utility model described in detail above.Should be appreciated that those of ordinary skill in the art just can make many modifications and variations according to design of the present utility model without creative work.Therefore, all technical staff in the art pass through the available technical scheme of logical analysis, reasoning, or a limited experiment on the basis of existing technology according to design of the present utility model, all should be in the protection domain being defined in the patent claims.

Claims (3)

1. the device being used for cleaning sampling needle, have and wash pin device (1), it is characterized in that: described in wash pin device (1) and include the up big and down small conical bores (1a) in top and the drain pipe (1b) of lower vertical shape, the upper end of conical bores (1a) is uncovered, the inlet (1c) of cleanout fluid it is provided with on the sidewall of this conical bores (1a), and the inner surface of conical bores (1a) is burnishing surface, the lower end of described conical bores (1a) connects with drain pipe (1b), the axial line of the axial line of conical bores (1a) and drain pipe (1b) is point-blank, inwall at described drain pipe (1b) is provided with spiral groove (1d), the degree of depth of this groove (1d) is gradually increased from top to bottom along with the hand of spiral.

2. the device for cleaning sampling needle as claimed in claim 1, is characterized in that: the sidewall of described conical bores (1a) and the angular range of horizontal plane are 30 °-70 °.

3. the device for cleaning sampling needle as claimed in claim 1, is characterized in that: the internal diameter of described drain pipe (1b) is 4mm-8mm.