CN217277126U

CN217277126U - Clinical laboratory uses application of sample rifle head

Info

Publication number: CN217277126U
Application number: CN202220332712.3U
Authority: CN
Inventors: 李小兰
Original assignee: First Peoples Hospital of Chongqing Liangjiang New Area
Current assignee: First Peoples Hospital of Chongqing Liangjiang New Area
Priority date: 2022-02-16
Filing date: 2022-02-16
Publication date: 2022-08-23
Anticipated expiration: 2032-02-16

Abstract

The utility model belongs to the technical field of medical instrument, concretely relates to clinical laboratory is with application of sample rifle head, including compression structure and straw structure, the straw structure downside is located to compression structure, compression structure can dismantle with straw structure and be connected. The utility model discloses a pressure differential in air pressure chamber realizes that the absorption of liquid has solved the problem that liquid can get into the lumen to the pipette is the detachable standard component, uses for a long time in the pipette and leaves to reduce the replacement cost after remaining, and the special of this design can not get into in the compression structure, so can not influence the use of application of sample rifle, has solved the use problem that is not smooth that the raffinate leads to.

Description

Clinical laboratory uses application of sample rifle head

Technical Field

The utility model belongs to the technical field of medical instrument, concretely relates to clinical laboratory uses application of sample rifle head.

Background

The application of sample rifle is the instrument that is used for functions such as sample precision pipetting, reagent dilution, distribution, mixing, can be used for clinical laboratory of hospital's clinical laboratory, disease control laboratory, life science laboratory, judicial expertise laboratory etc. the application of sample rifle that clinical laboratory used is usually used for adding liquid reagent, plasma and whole blood sample to can adjust the application of sample volume, for example 10ul,20ul,100ul etc. can also adjust in succession.

Chinese patent publication No. CN212396776U discloses a quantitative blood-loading type loading gun, which comprises a gun body, wherein one end of the gun body is a suction nozzle fixing port for connecting with a suction nozzle, the other end of the gun body is a pressing end, the gun body is hollow, and the inner side wall of the upper part of the gun body is provided with a first card slot group and a plurality of second card slot groups; the gun body is provided with a piston rod and a piston, the piston rod is connected with the piston, and the piston is connected with the inner wall of the gun body in a sliding and rotating manner; be connected with the connecting rod on the piston rod, the connecting rod is kept away from the one end of piston rod and has been seted up the standing groove, has placed compression spring in the standing groove, and compression spring's elasticity direction is the radial of the rifle body, and compression spring keeps away from the one end connection kelly of standing groove tank bottom, and kelly sliding connection standing groove, its one end that deviates from compression spring stretches out the standing groove under compression spring's effect outside, and the tip of this other end is the hemisphere structure, the utility model discloses can realize the conversion of continuous ration application of sample and different volume, the conversion is convenient, and is consuming time few, the operation of being convenient for.

However, the blood clot formed by the residual blood plasma or blood in the lumen after the sample application gun is used for a period of time still exists, the sample application gun is blocked, the accuracy of sample application is affected, and the problem that the use is not smooth still exists.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned weak point that exists among the prior art, the utility model provides a clinical laboratory uses application of sample rifle head for after solving current application of sample rifle and using a period, remaining plasma of lumen or blood form the blood clot, the application of sample rifle will be plugged up, influences the accuracy of application of sample, uses not smooth scheduling problem.

In order to solve the technical problem, the utility model adopts the following technical scheme:

a sample adding gun head for a clinical laboratory comprises a compression structure and a straw structure, wherein the compression structure is arranged on the lower side of the straw structure and is detachably connected with the straw structure; the compression structure comprises a gasket, a compression rod, a compression spring and a limiting plate, wherein the lower side of the gasket is fixedly connected with the upper side of the compression rod, the compression spring is sleeved on the compression rod, and the upper end and the lower end of the compression spring are respectively connected with the gasket and the limiting plate; an air pressure cavity is connected to the lower side of the limiting plate, a transparent plate is arranged on the outer side of the air pressure cavity, a shell is arranged on the outer side of the compression structure, and the transparent plate is embedded in the middle of the shell; the suction pipe structure comprises a suction pipe and a liquid containing pipe, the suction pipe and the liquid containing pipe are fixedly connected, the lower end of the suction pipe is provided with a flow limiting port, the upper side of the flow limiting port is fixedly connected with the lower side of the suction pipe, the upper side of the suction pipe is provided with a clamping plate, and the clamping plate is sleeved on the suction pipe; the liquid containing pipe comprises a long pipe and a liquid containing cavity, the long pipe is fixedly connected with the liquid containing cavity, spiral structures are arranged on the outer sides of the long pipe and the liquid containing cavity, and the spiral structures are sleeved on the outer side of the liquid containing pipe.

Preferably, the outermost sides of the pipette and the liquid containing pipe are provided with shells.

Compared with the prior art, the utility model, following beneficial effect has:

the utility model discloses a clinical laboratory is with application of sample rifle head, through extension rifle head, and then increase the stock solution space, the pressure differential through the air pressure chamber realizes that the absorption of liquid has solved the problem that liquid can get into the lumen to the pipette is the detachable standard component, and long-term the use of pipette leaves to reduce the replacement cost after remaining, and in the special of this design can not get into compression structure, so can not influence the use of application of sample rifle, has solved the not smooth problem of use that the raffinate leads to.

Drawings

FIG. 1 is a schematic front view of an embodiment of a gun head of a sample adding gun for clinical laboratory;

FIG. 2 is a cross-sectional view of FIG. 1A-A;

reference numerals referred to in the drawings are: the device comprises a compression structure 1, a gasket 101, a compression rod 102, a compression spring 103, a limit plate 104, an air pressure cavity 105, a transparent plate 106, a shell 107, a straw structure 2, a straw 201, a flow limiting port 2011, a clamping plate 2012, a liquid containing pipe 202, a long pipe 2021 and a liquid containing cavity 2022.

Detailed Description

In order to make the present invention better understood by those skilled in the art, the technical solutions of the present invention are further described below with reference to the accompanying drawings and examples.

Examples

As shown in figures 1-2, a clinical laboratory uses application of sample rifle head, includes compression structure 1 and straw structure 2, and compression structure 1 locates straw structure 2 downside, and compression structure 1 and straw structure 2 can be dismantled and be connected.

Gasket 101 downside and compression pole 102 upside fixed connection, compression spring 103 cover is located on the compression pole 102, and both ends are connected with gasket 101 and limiting plate 104 respectively about compression spring 103, and limiting plate 104 downside is connected with empty pressure chamber 105, and the empty pressure chamber outside is equipped with transparent plate 106, and the compression structure 1 outside is equipped with shell 107, and transparent plate 106 inlays in the centre of shell 107. Further, the compression rod 102 and the compression spring 103 play a role in extracting and compressing air, the compression spring 103 is a structure for ensuring that the compression rod 102 can rebound, the sample adding gun can freely suck and discharge liquid, the middle of the limiting plate 104 is hollow, the hollow limiting plate 104 realizes air circulation, the air pressure cavity 105 realizes the structure that liquid cannot enter the upper side of the air pressure cavity 105 for times, the problem that liquid enters the cavity tube is solved through the air pressure cavity 105, and the liquid is wisely located in the lower structure of the air pressure cavity 105 and cannot enter the air pressure cavity 105.

The pipette 201 and the liquid containing pipe 202 are fixedly connected, the lower end of the pipette 201 is provided with a flow restriction port 2011, the upper side of the flow restriction port 2011 is fixedly connected with the lower side of the pipette 201, the upper side of the pipette 201 is provided with a clamping plate 2012, the clamping plate 2012 is sleeved on the pipette 201, the long pipe 2021 is fixedly connected with the liquid containing cavity 2022, the outer sides of the long pipe 2021 and the liquid containing cavity 2022 are provided with a spiral structure 2023, and the outer side of the liquid containing pipe 202 is sleeved with the spiral structure 2023. Further, the liquid absorbed by the sample adding gun is only located in the liquid containing pipe 202 and cannot enter the air pressure cavity 105 on the upper side, the flow limiting port 2011 is used for limiting the liquid absorbing flow and guaranteeing the accuracy of the sample adding gun, the clamping plate 2012 is used for guaranteeing the relative position relationship between the liquid absorbing pipe 201 and the liquid containing pipe 202 besides the effect of the fixing structure, the liquid absorbing pipe 201 is guaranteed not to fall off in the using process, the liquid absorbing pipe 201 is a standard component and can be replaced at will, and the cost is saved.

The utility model discloses a use method:

(1) when liquid needs to be sucked, the sample adding gun pulls the gasket 101 to drive the compression rod 102, the term is that the compression spring 103 is stretched, the compression rod 102 is stretched to drive the gas capacity in the air pressure cavity 105 to be reduced, so that a pressure difference is formed between the air pressure cavity 105 and the suction pipe structure 2 on the lower side, and then liquid is sucked;

(2) when liquid needs to be discharged, the steps are reversed, and liquid discharge is realized.

The above description is only for the embodiments of the present invention, and the common general knowledge of the known specific structures and characteristics in the schemes is not described herein too much, and those skilled in the art will know all the common technical knowledge in the technical field of the present invention before the application date or the priority date, can know all the prior art in this field, and have the ability to apply the conventional experimental means before this date, and those skilled in the art can combine their own ability to perfect and implement the schemes, and some typical known structures or known methods should not become obstacles for those skilled in the art to implement the present application. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent.

Claims

1. The utility model provides a clinical laboratory is with application of sample rifle head which characterized in that: the straw structure comprises a compression structure and a straw structure, wherein the compression structure is arranged on the lower side of the straw structure and is detachably connected with the straw structure;

the compression structure comprises a gasket, a compression rod, a compression spring and a limiting plate, wherein the lower side of the gasket is fixedly connected with the upper side of the compression rod, the compression spring is sleeved on the compression rod, and the upper end and the lower end of the compression spring are respectively connected with the gasket and the limiting plate; an air pressure cavity is connected to the lower side of the limiting plate, a transparent plate is arranged on the outer side of the air pressure cavity, a shell is arranged on the outer side of the compression structure, and the transparent plate is embedded in the middle of the shell;

the straw structure comprises a liquid suction pipe and a liquid containing pipe, the liquid suction pipe and the liquid containing pipe are fixedly connected, a flow limiting opening is formed in the lower end of the liquid suction pipe, the upper side of the flow limiting opening is fixedly connected with the lower side of the liquid suction pipe, a clamping plate is arranged on the upper side of the liquid suction pipe, the clamping plate is sleeved on the liquid suction pipe, the liquid containing pipe comprises a long pipe and a liquid containing cavity, the long pipe is fixedly connected with the liquid containing cavity, a spiral structure is arranged on the outer side of the long pipe and the liquid containing cavity, and the outer side of the liquid containing pipe is sleeved with the spiral structure.

2. A clinical laboratory sample application gun tip according to claim 1, wherein: and the outermost sides of the liquid suction pipe and the liquid containing pipe are provided with shells.