CN211587809U

CN211587809U - Needle washing device

Info

Publication number: CN211587809U
Application number: CN201922289961.XU
Authority: CN
Inventors: 王炼; 丁伟; 钟云鹏
Original assignee: Maccura Medical Electronics Co Ltd
Current assignee: Maccura Medical Electronics Co Ltd
Priority date: 2019-12-18
Filing date: 2019-12-18
Publication date: 2020-09-29
Anticipated expiration: 2029-12-18

Abstract

The utility model discloses a wash needle device, include and wash the needle pond and be located wash the needle room in the needle pond, it has the washing passageway to wash needle room intercommunication, it is used for spraying the washing liquid to wash the passageway. The utility model can firstly take the reagent by adding the cleaning channel in the needle washing chamber, keep the reagent in the filling needle, clean the outer wall of the filling needle in the needle washing chamber, then continue to take the sample, and finally fill the reagent and the sample into the reaction cup together; the outer wall of the filling needle is cleaned through the needle washing chamber, so that a sample can be effectively prevented from being polluted by a reagent, the reagent and the sample are taken in a single flow, the efficiency of absorbing the reagent and the sample is effectively improved, and the testing speed of the whole machine is improved.

Description

Needle washing device

Technical Field

The utility model relates to the technical field of medical equipment, especially a wash needle device.

Background

At present, the existing needle washing structure mainly adopts waterfall type needle washing, test paper type needle washing and fountain type needle washing. The waterfall type needle washing is mainly in a single-side washing mode, and liquid hanging is often easily formed to influence a test result; in order to prevent hanging liquid, one surface of the needle is flushed with liquid, and the other surface of the needle sucks liquid by using negative pressure, so that the requirement on the pressure in the cavity is higher; gushing the spring formula and washing the needle, utilizing the interior liquid that washes out of sample needle to spout and form high-speed vortex in washing the needle pond, wash the needle, the cleaning performance is better, but gushing the spring formula and washing the needle and need wash inner wall and outer wall simultaneously, can not carry out the outer wall alone and wash.

In the test process, the reagent and the sample are sometimes sucked separately, and both the reagent and the sample are retained inside the filling needle and then are simultaneously filled into the reaction cup. Therefore, the reagent is sucked firstly, the reagent is kept in the filling needle, then the outer wall of the filling needle is cleaned, and if the outer wall of the filling needle is not cleaned completely, the reagent is brought into a sample, so that the risk of polluting the sample is avoided. Therefore, there is a need for an improvement of the existing Yongquan type needle washing structure, so that the structure can keep the reagent inside the filling needle and simultaneously realize the cleaning of the outer wall of the filling needle.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: to the current spring formula of prior art existence wash needle structure can not realize keeping reagent in the inside of filling needle, carry out abluent not enough to filling needle outer wall, provide a needle washing device.

In order to realize the purpose, the utility model discloses a technical scheme be:

the utility model provides a wash needle device, includes and washes the needle pond and be located wash the needle room in the needle pond, it has the washing passageway to wash needle room intercommunication, it is used for spraying the washing liquid to wash the passageway.

The utility model discloses an add the washing passageway in the room of washing the needle, can realize only wasing the filling needle outer wall through wasing the passageway to the needle washing effect satisfies carries the requirement, does not hang liquid. Therefore, the utility model discloses can realize getting reagent earlier, remain reagent inside the filling needle, wash the needle outer wall to filling in washing the needle room, then continue to get the sample, at last fill reagent and sample to the reaction cup together. The outer wall of the filling needle is cleaned through the needle washing chamber, so that a sample can be effectively prevented from being polluted by a reagent, the reagent and the sample are taken in a single flow, the efficiency of absorbing the reagent and the sample is effectively improved, and the testing speed of the whole machine is improved.

In one embodiment, the number of the cleaning channels is greater than or equal to two, so that the cleaning efficiency is improved, and the cleaning time is shortened.

In one embodiment, all of the cleaning channels are evenly distributed along the periphery of the needle washing chamber.

In one embodiment, the liquid outlets of the cleaning channel are located on the side wall of the needle washing chamber, and all the liquid outlets are arranged at the same height.

The liquid outlet is typically arranged at the lower portion of the sidewall of the needle washing chamber, so that after the filling needle is inserted into the needle washing chamber, the height of the liquid outlet is the same as the height of the needle tip of the filling needle, and the cleaning agent in the cleaning passage can flush the needle tip portion of the filling needle.

In one embodiment, the cleaning channel and the needle washing chamber are both in an axisymmetric structure, and the central axis of the cleaning channel is eccentrically arranged relative to the central axis of the needle washing chamber, that is, in a top view, the central axis of the cleaning channel does not pass through the center of the cross section of the needle washing chamber, but deviates a certain angle, which is more beneficial to generating a vortex in the needle washing chamber, so that the cleaning effect is improved.

In one embodiment, the cleaning channel forms an angle of 30-60 degrees with the central axis of the needle washing chamber.

In one embodiment, a first opening is formed in the needle washing pool, the needle washing chamber comprises a first portion and a second portion which are connected with each other, the first portion is close to the first opening, the second portion is far away from the first opening, and the first portion is provided with a second opening corresponding to the first opening.

The filling needle enters the needle washing pool through the first opening and enters the needle washing chamber through the second opening.

In one embodiment, the first part is a cone, the second part is a cylinder, the cone and the cylinder are both hollow structures, and the bottom of the cylinder is a closed structure. The first part is designed into a cone, so that liquid splashing can be effectively reduced.

In one embodiment, the first portion is provided with a plurality of slots along the edge of the second opening, and when the liquid level in the needle washing chamber rises to the slots, the liquid in the needle washing chamber can flow into the needle washing pool through the slots and be discharged through the waste liquid channel.

In one embodiment, the needle washing device further comprises a liquid discharging pipe, the liquid discharging pipe is located on one side of the needle washing pool and is communicated with a waste liquid channel of the needle washing pool, and waste liquid generated in the cleaning process is discharged through the waste liquid channel. After the reagent and the sample are filled into the reaction cup by the filling pipe, because the concentration of the sample is higher, the inner wall of the filling needle can be firstly washed by the liquid spitting pipe, the residual sample in the filling needle can be spitted out, the pollution of the high-concentration sample to the needle washing chamber is avoided, and after the liquid spitting of the liquid spitting pipe is finished, the inner wall and the outer wall of the needle washing chamber are cleaned.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

the utility model discloses an add the washing passageway, can realize getting reagent earlier, remain reagent inside the filling needle, wash the filling needle outer wall in the needle washing room, then continue to get the sample, at last fill reagent and sample to the reaction cup together. The outer wall of the filling needle is cleaned through the needle washing chamber, so that a sample can be effectively prevented from being polluted by a reagent, the reagent and the sample are taken in a single flow, the efficiency of absorbing the reagent and the sample is effectively improved, and the testing speed of the whole machine is improved.

Drawings

Fig. 1 is a schematic structural view of a needle washing device according to embodiment 1 of the present invention.

Figure 2 is a cross-sectional view of the needle washing chamber and the washing passage according to embodiment 1 of the present invention.

Fig. 3 is a plan view of a needle washing device according to embodiment 2 of the present invention.

Fig. 4 is a top view of a needle washing device according to embodiment 3 of the present invention.

Fig. 5 is a top view of a needle washing device according to embodiment 4 of the present invention.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

Example 1

As shown in fig. 1-2, a needle washing device, including needle washing pool 1, needle washing pool 1 is open-topped cylindrical structure needle washing room 2 is equipped with in the inside of needle washing pool 1, needle washing room 2's outer wall with be hollow structure between the inner wall of needle washing pool 1, needle washing room 2 includes interconnect's first portion and second portion, the first portion is the cone, the second portion is the cylinder, the cone is located the top of cylinder, just the cone with the cylinder is hollow structure, the bottom of cylinder is the enclosed construction. Wash the top in needle pond 1 and be equipped with first opening, the top correspondence of needle washing room 2 is equipped with the second opening, and during the washing, the filling needle passes through first opening gets into wash needle pond 1, and pass through the second opening gets into wash needle room 2. The second opening is located on the first part, and the first part is provided with a plurality of slots 21 along the edge of the second opening, when the liquid level in the needle washing chamber 2 rises to the slots 21, the liquid in the needle washing chamber 2 can flow into the needle washing pool 1 through the slots 21 and be discharged through the waste liquid channel 5.

In order to realize washing the outer wall of filling needle alone, wash needle room 2 intercommunication has two and washs passageway 3, wash passageway 3 and be the pipe column structure, wash passageway 3 and be used for spraying the washing liquid, two wash passageway 3 along wash needle room 2's periphery is evenly arranged, and symmetrical arrangement. The liquid outlets of the two cleaning channels 3 are located on the side wall 22 of the needle washing chamber 2, and all the liquid outlets are arranged at the same height. Further, the liquid outlet is located at the lower part of the needle washing chamber 2, and the liquid outlet is located above the bottom wall 23 of the needle washing chamber 2.

The central axis of each cleaning channel 3 and the central axis of the needle washing chamber 2 form an included angle a of 30 degrees, 45 degrees or 60 degrees. 45 degrees is a good realization, in fact, as long as the cleaning channel 3 can flush the filling needle tip part, and the size of the included angle a is not limited to the above angle.

The method for cleaning the outer wall of the filling needle through the cleaning channel comprises the steps of moving the filling needle into the needle cleaning chamber 2, enabling the height of the needle point of the filling needle to be equal to the height of the liquid outlet of the cleaning channel 3, and ensuring that liquid sprayed out of the cleaning channel 3 can be more efficiently washed to the needle point part of the filling needle. After filling, the inner wall and the outer wall of the filling needle can be cleaned in the needle washing chamber 2 at the same time, the filling needle is connected with a pipeline, cleaning liquid is injected into the filling needle through the pipeline and is sprayed out from the needle point, fountain type cleaning is realized, and the outer wall of the filling needle is cleaned through the cleaning channel 3.

The needle washing device further comprises a liquid discharging pipe 4, the liquid discharging pipe is located on one side of the needle washing pool 1, and the liquid discharging pipe 4 is communicated with a waste liquid channel 5 of the needle washing pool 1. Still be equipped with mounting panel 6 on the needle washing device, mounting panel 6 is convenient for connect with other structures, easy to assemble the needle washing device.

The method for cleaning the filling needle at the liquid discharge pipe 4 is to connect a pipeline to the filling needle, inject the cleaning liquid into the filling needle through the pipeline, and discharge the cleaning liquid from the needle point to discharge the cleaning liquid.

Example 2

As shown in fig. 3, the present embodiment is different from the embodiment 1 in that the number of the cleaning channels 3 is three, three cleaning channels 3 are arranged in central symmetry along the sectional center 7 of the needle washing chamber 2, and in a top view, the central axis of each cleaning channel 3 passes through the sectional center 7 of the needle washing chamber 2.

Example 3

As shown in fig. 4, this embodiment is different from embodiment 1 in that the number of the cleaning channels 3 is four, four cleaning channels 3 are arranged in central symmetry along the sectional center 7 of the needle washing chamber 2, and in a plan view, the central axis of each cleaning channel 3 passes through the sectional center 7 of the needle washing chamber 2.

Example 4

As shown in fig. 5, the present embodiment is different from the embodiment 1 in that the number of the cleaning channels 3 is three, three cleaning channels 3 are asymmetrically arranged, and the cleaning channels 3 are eccentrically arranged with respect to the sectional center 7 of the needle washing chamber 2, that is, the central axis of the cleaning channel 3 does not pass through the sectional center 7 of the needle washing chamber 2 in a plan view.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A needle washing device comprises a needle washing pool and a needle washing chamber positioned in the needle washing pool, and is characterized in that the needle washing chamber is communicated with a washing channel, and the washing channel is used for spraying washing liquid; the number of the cleaning channels is more than or equal to two; the cleaning channels are uniformly distributed along the periphery of the needle washing chamber; the liquid outlets of the cleaning channel are positioned on the side wall of the needle washing chamber, and all the liquid outlets are arranged at the same height; the included angle between the central axis of the cleaning channel and the central axis of the needle washing chamber is 30-60 degrees.

2. The needle wash apparatus of claim 1, wherein a central axis of the purge passage is eccentrically arranged with respect to a central axis of the needle wash chamber.

3. The needle washing device of claim 1 or 2, wherein the needle washing basin is provided with a first opening, the needle washing chamber comprises a first portion and a second portion connected with each other, the first portion is close to the first opening, the second portion is far away from the first opening, and the first portion is provided with a second opening corresponding to the first opening.

4. The needle washing device of claim 3, wherein the first portion is a cone, the second portion is a cylinder, and the cone and the cylinder are both hollow structures, and the bottom of the cylinder is a closed structure.

5. A needle wash device according to claim 3, wherein the first portion is provided with a plurality of slots along the edge of the second opening.

6. The needle washing device according to claim 1 or 2, further comprising a liquid discharge pipe which is located at one side of the needle washing pool and communicates with a waste liquid channel of the needle washing pool.