CN104665879B

CN104665879B - Dropper special for skin prick test

Info

Publication number: CN104665879B
Application number: CN201510102155.0A
Authority: CN
Inventors: 陈庆冲
Original assignee: CANGNAN MIDDLE SCHOOL ZHEJIANG PROVINCE
Current assignee: CANGNAN MIDDLE SCHOOL ZHEJIANG PROVINCE
Priority date: 2015-03-09
Filing date: 2015-03-09
Publication date: 2020-08-18
Anticipated expiration: 2035-03-09
Also published as: CN104665879A

Abstract

A dropper special for skin prick experiments comprises a suction pipe and a suction bag, wherein the shell comprises a cover body and a body, the cover body is provided with a cover body through hole, the body is provided with a body through hole, the suction bag is arranged in the shell, the suction pipe extends out of the body through hole, the cover body is internally provided with a pressing plate and a pressing column, one end of the pressing column is connected with the pressing plate, the other end of the pressing column extends out of the cover body through hole, the pressing column is sleeved with a pressing spring, one end of the pressing spring is connected with the inner wall of the cover body, the other end of the pressing spring is connected with the pressing plate, the inner wall of the shell is provided with a plurality of annular positioning grooves arranged from top to bottom, the lateral part of the pressing plate is provided with a lateral part mounting hole, a positioning column and a positioning spring are arranged in the lateral part mounting hole, one end of the positioning spring is, the method has the characteristics of accurate control of dripping of the original liquid medicine and high detection efficiency.

Description

Dropper special for skin prick test

Technical Field

The invention relates to a dropper, in particular to a dropper special for skin prick experiments.

Background

The existing human skin allergy test mainly obtains required data through a skin prick test, the skin prick test mainly adopts a skin prick allergy raw liquid test at present, namely, disinfection of forearms at both sides of a patient is carried out, about 20 kinds of allergy raw liquid medicines are dripped on the inner side of the forearms every 3-5cm, histamine positive control and normal saline negative control are dripped, a disposable needle is used for vertically pricking the skin to the subcutaneous part in the center of the liquid medicine, observation is carried out for 20 minutes, and the skin prick test is compared with an amine group and a saline group, and the position and the size of the wheal are recorded. However, for medical care personnel, in the process of dripping the original liquid medicine, too much original liquid medicine often appears, the medical care personnel suck the original liquid medicine back into the dropper, the head of the dropper touches the skin of a patient, and then the dropper is used by the next patient, so that cross infection is easily caused, and potential safety hazards exist. Because the experimental raw liquid medicine is high in manufacturing cost, in order to save the raw liquid medicine, the detection medical personnel can not leave during operation, the difficulty of dripping a proper amount of raw liquid medicine is high, and the whole detection time is too long.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: provides a dropper which can accurately control the dropping of the original liquid medicine, has high detection efficiency and is safe and specially used for skin prick experiments.

In order to solve the technical problems, the invention adopts the following technical scheme: the dropper specially used for the skin prick test comprises a sucker and a suction bag, wherein the sucker is communicated with the suction bag, the dropper comprises a shell, the shell comprises a cover body and a body which are detachably connected, a cover body through hole is formed in the cover body, a body through hole is formed in the body, the suction bag is arranged in the shell, the sucker extends out of the body through hole, a pressing plate and a pressing column are arranged in the cover body, the pressing plate is linked with the pressing column and can rotate and move up and down in the shell, one end of the pressing column is connected with the pressing plate, the other end of the pressing column extends out of the cover body through hole, a pressing spring is sleeved on the pressing column, one end of the pressing spring is connected with the inner wall of the cover body, the other end of the pressing spring is connected with the pressing plate, a plurality of annular positioning grooves which are arranged from top to bottom are formed, be equipped with reference column and positioning spring in the lateral part mounting hole, positioning spring's one end and reference column looks butt, positioning spring's the other end butt is in the lateral part mounting hole, is equipped with a vertical groove that resets that runs through annular positioning groove that can supply the reference column to pass through to shift up on the inner wall of casing, when the clamp plate moves down and arrives annular positioning groove toward inhaling the bag direction, the reference column gets into annular positioning groove under the drive of clamp plate during, the restriction clamp plate upwards moves toward keeping away from the direction of inhaling the bag.

The dropper special for the skin prick test provided by the invention has the beneficial effects that: when in testing, the suction pipe is taken out and placed above the skin of a patient to be tested to press the pressure post, the pressure post drives the pressure plate to move downwards, the pressure plate drives the positioning post to move downwards, the suction bag is extruded by the pressure plate to drop the original liquid on the skin of the patient, when the positioning post reaches one annular positioning groove, the required original liquid just drops, and the positioning post is matched with the annular positioning groove under the support of the positioning spring to have the backstop locking function, so that the pressure plate can only move downwards, when a plurality of original liquids need to drop, the pressure post is pressed for a plurality of times to enable the positioning post to pass through the annular positioning grooves, the dropped original liquid is just the volume required by the test, the volume of the dropped original liquid is equal, when the positioning post reaches the lowest annular positioning groove, the suction bag is almost flattened by the pressure plate, and the original liquid in the suction pipe also completely flows out, at the moment, the suction pipe is put into the original liquid medicine, the pressing plate is rotated, the positioning column on the pressing plate is rotated into the vertical reset groove, the positioning column leaves the annular positioning groove and releases the locking of the pressing plate, the pressing plate drives the positioning column to move upwards along the vertical reset groove under the tensile force of the pressing spring to be away from the suction bag, the original liquid medicine is sucked by the suction bag through the suction pipe in the recovery state of the suction bag, the pressing plate is rotated when the test is performed again, the pressing plate drives the positioning column to leave the vertical reset groove, and the process is repeated, so that medical personnel do not need to consider the situation that too much original liquid medicine is dripped in the process of dripping the original liquid medicine, the test process is very simple and convenient to operate, the working efficiency is greatly improved, the medical personnel do not need to suck the original liquid medicine back into the drip pipe, the cross infection is avoided, the potential safety hazard is removed, the medical staff can accurately drip out each drop of the original medicine liquid.

The dropper for skin prick test according to the present invention will be further described in detail with reference to the accompanying drawings and examples.

Drawings

Fig. 1 is a schematic structural diagram of a dropper specially used for skin prick tests.

Fig. 2 is a top view of fig. 1.

Fig. 3 is an enlarged schematic view of a structure at a in fig. 1.

Fig. 4 is a schematic structural view of the housing of fig. 1.

DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION

As shown in fig. 1 and 2, the embodiment of the dropper specially used for skin prick experiments provided by the invention comprises a straw 1 and a suction bag 2, wherein the straw 1 is connected and communicated with the suction bag 2, the dropper comprises a housing 3, the housing 3 comprises a cover 4 and a body 5 which are detachably connected, a cover through hole 6 is arranged on the cover 4, a body through hole 7 is arranged on the body 5, the suction bag 2 is arranged in the housing 3, the straw 1 extends out of the body through hole 7, a pressing plate 8 and a pressing column 9 are arranged in the housing 3, the pressing plate 8 is linked with the pressing column 9 and can rotate and move up and down in the housing 3, one end of the pressing column 9 is connected with the pressing plate 8, the other end of the pressing column 9 extends out of the cover through hole 6, a pressing spring 10 is sleeved on the pressing column 9, one end of the pressing spring 10 is connected with the inner wall of the cover 4, and the other end of the pressing spring 10 is connected with, be equipped with a plurality of from last annular positioning groove 11 of arranging down on the inner wall of casing 3, the lateral part of clamp plate 8 is equipped with lateral part mounting hole 12, be equipped with reference column 13 and positioning spring 14 in the lateral part mounting hole 12, positioning spring 14's one end and reference column 13 looks butt, positioning spring 14's other end butt is equipped with a vertical groove 15 that resets that can supply reference column 13 to run through annular positioning groove 11 through shifting up on the inner wall of casing 3 in lateral part mounting hole 12, when clamp plate 8 moves and reachs annular positioning groove 11 to inhaling 2 directions of bag down, reference column 13 gets into annular positioning groove 11 under clamp plate 8's drive, and restriction clamp plate 8 is upwards toward keeping away from the direction of inhaling bag 2 and is removed.

As shown in fig. 1 and 2, the pressing spring 10 is an extension spring, and the positioning spring 14 is a compression spring, wherein the extension spring provides better pulling force for the pressing column 9, and the compression spring provides better supporting force for the positioning column 13.

As required, detailed embodiments of the present invention are disclosed herein, but it is to be understood that the disclosed embodiments are merely exemplary of the invention that may be embodied in various and alternative forms. The figures are not necessarily to scale. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a representative basis for teaching one skilled in the art to variously employ the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Claims

1. Dropper special for skin prick test, including straw (1) and suction bag (2), straw (1) is connected with suction bag (2) and is link up mutually, its characterized in that: comprises a shell (3), the shell (3) comprises a cover body (4) and a body (5) which are detachably connected, a cover body through hole (6) is arranged on the cover body (4), a body through hole (7) is arranged on the body (5), a suction bag (2) is arranged in the shell (3), a suction pipe (1) extends out of the body through hole (7), a pressing plate (8) and a pressing column (9) are arranged in the shell (3), the pressing plate (8) is linked with the pressing column (9) and can rotate and move up and down in the shell (3), one end of the pressing column (9) is connected with the pressing plate (8), the other end of the pressing column (9) extends out of the cover body through hole (6), a pressing spring (10) is sleeved on the pressing column (9), one end of the pressing spring (10) is connected with the inner wall of the cover body (4), and the other end of the pressing spring (10) is connected with the pressing plate (8), the inner wall of the shell (3) is provided with a plurality of annular positioning grooves (11) arranged from top to bottom, a side mounting hole (12) is arranged at the side part of the pressing plate (8), a positioning column (13) and a positioning spring (14) are arranged in the side mounting hole (12), one end of the positioning spring (14) is abutted against the positioning column (13), the other end of the positioning spring (14) is abutted against the side mounting hole (12), the inner wall of the shell (3) is provided with a vertical reset groove (15) which is used for the positioning column (13) to pass through the upward moving annular positioning groove (11), when the pressure plate (8) moves downwards towards the direction of the suction bag (2) and reaches the annular positioning groove (11), the positioning column (13) enters the annular positioning groove (11) under the driving of the pressure plate (8), the pressure plate (8) is limited to move upwards in the direction away from the suction bag (2).

2. The dropper special for skin prick test according to claim 1, wherein: the pressing spring (10) is an extension spring, and the positioning spring (14) is a compression spring.