CN216645973U

CN216645973U - Syringe positioner

Info

Publication number: CN216645973U
Application number: CN202123203609.3U
Authority: CN
Inventors: 吴杰; 陈琼娣; 汤习锋; 马海波; 范新志
Original assignee: Zhuhai Langtai Biotechnology Co ltd
Current assignee: Zhuhai Langtai Biotechnology Co ltd
Priority date: 2021-12-17
Filing date: 2021-12-17
Publication date: 2022-05-31
Anticipated expiration: 2031-12-17

Abstract

The utility model discloses a syringe positioning device, belonging to the field of medical appliances, comprising: the mounting plate is vertically arranged on the workbench, a vertical strip hole is formed in the mounting plate, the two injector positioning seats are arranged in the strip hole, the two injector positioning seats are respectively provided with a push rod positioning seat and a needle cylinder positioning seat, the push rod positioning seat is positioned at the upper part of the needle cylinder positioning seat, and the push rod positioning seat and the needle cylinder positioning seat can move up and down in the strip hole along with the injector positioning seats. The syringe positioning device is simple in structure, avoids contact pollution and mechanical damage of a handheld syringe, can quickly, safely and reliably position the syringe, and facilitates the needle of the syringe to quickly enter a vacuum test tube below to accurately take blood.

Description

Syringe positioner

Technical Field

The utility model belongs to the field of medical instruments, and particularly relates to an injector positioning device.

Background

Syringes are widely used in biochemical and clinical medical examinations, and at present, medical institutions use a lot of disposable syringes to collect blood from vacuum test tubes with tube caps sealed at tube openings, such as vacuum blood collection tubes, PRP tubes, and the like. For example, through the negative pressure with human blood suction vacuum test tube during the blood sampling, need with the blood in the syringe needle extraction vacuum test tube when clinical blood or inspection, generally be that medical personnel hold the handheld vacuum test tube of syringe with one hand and operate, lead to the blood sample that hardly accurate control drawed because of one-hand operation very easily, also can not make the syringe needle be difficult for impaling the pipe cap or touch the pipe wall because of dynamics or angle grasp, this kind of manual operation not only is high to medical personnel's requirement, and work efficiency is low moreover.

At present, the commonly used fixing devices use complex mechanical structures and complicated mechanical actions to position the cone or the cylinder, but how to safely and reliably position the cylinder with the long tube, such as a syringe, becomes a problem to be solved urgently.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems of inaccurate blood adding or extracting amount of the injector, low working efficiency, complex structure of a fixing device, complex process, fragile test tube and the like existing in manual operation in the prior art, the injector positioning device provided by the utility model has a simple structure, avoids contact pollution and mechanical hazard of a handheld injector, can quickly, safely and reliably position the injector, and facilitates the rapid entry of the needle head of the injector into the lower vacuum test tube for accurate blood extraction.

In order to solve the technical problems, the technical scheme of the utility model is as follows:

the utility model provides a syringe positioning device, which comprises:

the mounting plate is vertically mounted on the workbench, a vertical strip hole is formed in the mounting plate, the two injector positioning seats are mounted in the strip hole, preferably, a push rod positioning seat and a needle cylinder positioning seat are respectively arranged on the two injector positioning seats, the push rod positioning seat is located at the upper part of the needle cylinder positioning seat, and the push rod positioning seat and the needle cylinder positioning seat can move up and down in the strip hole along with the injector positioning seat.

Preferably, the syringe positioning seat is a U-shaped member, the push rod positioning seat and the syringe positioning seat are respectively arranged in a U-shaped groove of the U-shaped member, and the U-shaped member is clamped in the strip hole.

Preferably, the needle cylinder positioning seat is a long groove body, the long groove body is arranged in the U-shaped groove, and the long groove body is parallel to the strip hole.

Preferably, the upper end of the long groove body is provided with a push rod opening, the two side groove walls close to the upper end are provided with needle cylinder flange clamping grooves perpendicular to the long strip holes, the middle part is provided with a cylinder positioning groove, and the lower end part is provided with a pintle bayonet.

Preferably, the push rod positioning seat is a boss, the boss is arranged in the U-shaped groove, and a push rod flange clamping groove perpendicular to the strip hole is formed in the boss.

Preferably, a fastening structure is arranged on the U-shaped groove and comprises a locking part arranged on the left groove wall of the U-shaped groove and a locking groove correspondingly arranged on the right groove wall.

Preferably, the lock catch part is hinged to the left groove wall of the U-shaped groove through a hinge, the lock catch part can turn around the hinge for 0-180 degrees, and when the lock catch part turns rightwards and is close to the lock catch groove, the free end of the lock catch part can be buckled into the lock catch groove.

Preferably, a boss is arranged on the free end of the locking part, and the boss can be pressed and fastened in the locking groove.

Preferably, the workbench is provided with a test tube loading block, the upper end face of the test tube loading block is provided with a positioning slotted hole, and the positioning slotted hole is positioned under the needle cylinder positioning seat.

Preferably, a limiting plate is mounted on the mounting plate, the limiting plate is located below the needle cylinder positioning seat and parallel to the workbench, and a limiting hole is formed in the limiting plate and located right above the positioning groove hole.

Compared with the prior art, the utility model has the following advantages and beneficial effects:

the injector positioning device has a simple structure, avoids contact pollution and mechanical damage of a handheld injector, can quickly, safely and reliably position the injector, and facilitates the rapid entry of the needle of the injector into a lower vacuum test tube for accurate blood sampling.

Drawings

FIG. 1 is a perspective view of the syringe positioning device in an operative condition;

FIG. 2 is a schematic view of the construction of the ram positioning seat and the syringe positioning seat;

fig. 3 is a schematic structural view of the loading block.

Detailed Description

In order that those skilled in the art can better understand the technical solutions provided by the present invention, the present invention will be further described in detail with reference to the following specific examples, but the embodiments of the present invention are not limited thereto.

Referring to fig. 1-3, the present invention provides a syringe positioning device. This syringe positioner includes: the device comprises a workbench 1, a mounting plate 2 and two injector positioning seats 7, wherein the mounting plate 2 is vertically arranged on the workbench 1, two vertically arranged strip holes 21 are formed in the mounting plate 2, and the two injector positioning seats 7 are clamped in the strip holes. The injector positioning seat 7 is a U-shaped member, the upper and lower grooves of the U-shaped groove 71 are parallel to the elongated holes 21, the back of the U-shaped member is provided with a left and right bases 72 extending backwards, the left and right bases 72 respectively penetrate through the two parallel elongated holes 21 and are clamped on the back of the mounting plate 2, a vertical guide rail can be mounted on the back of the mounting plate 2, the left and right bases 72 can be clamped on the guide rail and can slide up and down, and the U-shaped member can move up and down in the two parallel elongated holes 21. The push rod positioning seat 8 and the syringe positioning seat 9 are respectively arranged in the upper U-shaped groove 71 and the lower U-shaped groove 71, and the push rod positioning seat 8 is positioned at the upper part of the syringe positioning seat 9. When the two syringe positioning seats 7 respectively slide up and down in the two parallel long strip holes 21, the push rod positioning seat 8 and the syringe positioning seat 9 vertically move up and down along with the two parallel long strip holes.

In order to vertically position the injector with respect to the table 1 and thus with respect to the injector 10, the ram positioning socket 8 and the syringe positioning socket 9 are adapted to the outer shape of the injector 10. The push rod positioning seat 8 is arranged on the injector positioning seat 7 at the upper part of the long hole 21, in particular a boss 81 is arranged in a U-shaped groove 71 of the U-shaped part, and the boss 81 can be arranged in the U-shaped groove 71. The boss 81 is a push rod flange clamping table extending outwards from the U-shaped groove 71, the boss 81 is provided with a semicircular opening, and a push rod flange clamping groove 811 perpendicular to the long hole 21 is arranged on the opening. The syringe positioning seat 9 is arranged on the injector positioning seat 7 at the lower part of the elongated hole 21, specifically, the syringe positioning seat 9 is an elongated slot 91 arranged in a U-shaped slot 71 of a U-shaped part, the elongated slot 91 is parallel to the elongated hole 21, the elongated slot 91 is an elongated slot capable of being embedded into a semicircular slot cavity of an injector cylinder, the upper end part of the elongated slot 91 is provided with a push rod port 911, two slot walls close to the upper end part are provided with syringe flange clamping grooves 912 vertical to the elongated hole 21, the middle part is provided with a cylinder positioning groove 913, and the lower end part is provided with a pintle clamping groove 914. In order to adapt to vacuum test tubes with different lengths, the syringe flange of the injector 10 is clamped in the syringe flange clamping groove 912, the height of the barrel positioning groove 913 can be properly long to adapt to test tubes with different lengths, but the height of the barrel positioning groove 913 cannot be too long in order to ensure that the needle of the injector 10 can go down as far as possible to go deep into the bottom of the vacuum test tube for sampling.

In order to prevent the injector 10 from moving up and down freely due to looseness, and simultaneously, in order to tightly clamp the injector 10 in the push rod positioning seat 8 and the syringe positioning seat 9 so as to enable the injector 10 to be vertical to the workbench 1, a locking structure is arranged on the U-shaped groove 71 of the injector positioning seat 7. The locking structure is that a locking part 711 is hinged on the left groove wall of the U-shaped groove 71 through a hinge, a locking groove 712 is correspondingly arranged on the right groove wall, the locking part 711 can turn around the hinge by 0-180 degrees, and when the locking part 711 is turned rightwards to be close to the locking groove 712, the free end of the locking part 711 can be locked into the locking groove 712. For fastening, a boss 711a may be provided on the free end, and the boss 711a may be fastened in the locking groove 712 by pressing once when the locking part 711 is turned right.

A test tube loading block 4 is provided on a table 1, and a positioning slot hole 41 is provided on the upper end surface of the test tube loading block 4, and the positioning slot hole 41 is a circular slot hole for loading a vacuum test tube 6. The test tube loading block 4 is arranged below the injector positioning seat 7, so that when the opening of the positioning slot 41 is vertically upward, the positioning slot 41 can be positioned right below the syringe positioning seat 9, thereby ensuring that the opening of the positioning slot 41 is vertically upward and is positioned right below the needle head of the injector 10. When the syringe positioning seat 7 slides downwards along the elongated hole 21, the push rod positioning seat 8 and the syringe positioning seat 9 move vertically downwards along with the syringe positioning seat so as to drive the syringe 10 to move vertically downwards, so that the needle enters the vacuum test tube 6 right below for sampling. With test tube loading block 4 setting make it be located syringe positioning seat 7 under one side of mounting panel 2, can articulate on workstation 1 through hinge 5 with test tube loading block 4 bottom keep away from and be on a parallel with the one end of mounting panel 2, test tube loading block 4 can be around hinge 5 upset like this. The turning angle can be set within the range of 0-180 degrees, and the specific angle of turning the test tube loading block 4 can be set within the range of 20-90 degrees in order to conveniently and quickly take out the vacuum test tube 6 from the positioning slot hole 41. If the contained angle between test tube loading block 4 and the workstation is 20, be the initial position that the test tube loaded this moment, load block 4 to the direction upset that is close to mounting panel 2 with the test tube and make it be close to mounting panel 2 gradually, when the flip angle of test tube loading block 4 was 90, the bottom of test tube loading block 4 was kept flat on workstation 1 and was located cylinder positioning seat 9 under this moment, guarantee that the test tube 6 of loading in the positioning slotted hole 41 is perpendicular and is located the work position, thereby the opening of the positioning slotted hole 41 of test tube loading block 4 can be located cylinder positioning seat 9 under so that the mouth of pipe of the test tube 6 of loading just to the syringe needle of syringe 10 on the perpendicular upwards. If the test tube loading block 4 which is horizontally placed on the workbench 1 overturns towards the direction far away from the mounting plate 2, namely the test tube loading block 4 overturns to be gradually far away from the mounting plate 2, so that the other end of the bottom of the test tube loading block 4 is far away from the mounting plate 2, the test tube loading block 4 overturns to a position which forms an included angle of 20 degrees with the workbench 1, and the initial position of the test tube loading is restored at the moment.

In order to prevent the needle head from driving the vacuum test tube 6 to go upwards when the injector 10 moves upwards after the blood sampling is finished, the limiting plate 3 is arranged on the mounting plate 2. The position limiting plate 3 is positioned below the syringe positioning seat 7 and is parallel to the workbench 1, and in order to adapt to vacuum test tubes 6 with different lengths, the position of the position limiting plate 3 on the mounting plate 2 can be adjusted up and down, the distance between the position limiting plate 3 and the needle head of the syringe 10 positioned at the upper part is kept to be 5-10mm as far as possible, and the distance between the position limiting plate 3 and the positioning groove hole 41 of the loading block 4 positioned at the lower part is kept to be slightly higher than the height of the test tube. The limiting plate 3 is provided with a limiting hole 31 vertically penetrating up and down, and the limiting hole 31 is positioned right below the injector 10 and right above the positioning groove hole 41. The limiting hole 31 can be provided with a slotted hole perpendicular to the strip hole 21 so as to adapt to the penetration of needles of syringes with different pipe diameters. The limiting hole 31 can also be a conical hole with a small upper part and a big lower part, so that the aperture of the lower end of the conical hole is larger than the outer diameter of the tube cap of the test tube 6, and the limiting hole 31 is convenient to clamp the test tube 6; the aperture of circular cone hole upper end is less than the external diameter of the tube cap of test tube 6, finishes when the sample and extracts the syringe needle from test tube 6, and test tube 6 will be blockked in the lower part of limiting plate 3 by spacing hole 31 to prevent that test tube 6 from upwards continuing to remove along with the syringe together.

As shown in fig. 3, when the test tube loading block 4 is turned over to the position under the position-limiting plate 3, the position-limiting hole 31 of the position-limiting plate 3 faces the positioning slot 41 of the test tube loading block 4, so that the position-limiting hole 31 coincides with the center line of the positioning slot 41, thereby ensuring that the needle of the syringe 10, the position-limiting hole 31, the vacuum test tube 6 and the center line of the positioning slot 41 coincide, and ensuring that the four are coaxial. The two syringe positioning seats 7 vertically slide downwards along the two strip holes 21, the needle head of the syringe 10 which is vertically positioned vertically downwards penetrates through the limiting hole 31, and downwards pierces the test tube cap to enter the vacuum test tube 6 and deeply enter a blood sample, the movement of the syringe positioning seat 9 is limited at the moment, the push rod 8 on the upper part vertically upwards moves to drive the push rod to vertically upwards, and the needle head can rapidly extract the blood sample in the vacuum test tube 6 into the syringe when the push rod drives the piston in the syringe 10 to vertically upwards. After the quantitative blood sampling is finished, the movement limitation of the needle cylinder positioning seat 9 is removed, the two injector positioning seats 7 vertically slide upwards to drive the push rod positioning seat 8 to move upwards together with the needle cylinder positioning seat 9, and when the injector positioning seat 7 vertically slides upwards to a position set at the upper end of the long hole 21, the sliding is stopped, so that the blood sampling operation of the injector on one vacuum test tube 6 is completed.

Another syringe 10 can be clamped in the push rod positioning seat 8 and the syringe positioning seat 9 again, another vacuum test tube 6 is put into the positioning slot 41 of the test tube loading block 4, and the blood sampling operation of another test tube 6 is continuously carried out.

In order to adapt to test tubes 6 with different tube diameters, the test tube loading block 4 with the positioning slot holes 41 with different apertures can be replaced according to requirements. In order to prevent abrasion or damage to the test tube 6, elastic members, such as soft PVC, rubber pads, etc., may be embedded in the hole walls of the limiting hole 31 and the positioning slot hole 41. In addition, also can be provided with the several bullet strip that upwards stretches out in the open position department of positioning slot 41, bullet strip is with the circumference form equipartition at the opening part, and the test tube can further chucking test tube to bullet strip, prevents to cause the test tube swing slope because of the perpendicular downward pipe cap that gets into of syringe needle.

In addition, in order to avoid cross contamination, disposable protective consumables can be arranged on the push rod positioning seat 8, the needle cylinder positioning seat 9, the limiting plate 3 and the test tube loading block 4.

Compared with the prior art, the injector positioning device has a simple structure, avoids contact pollution and mechanical damage of a handheld injector and a test tube, can quickly, safely and reliably position the injector, and facilitates the rapid entry of the needle of the injector into the vacuum test tube right below the injector to accurately take blood.

The foregoing is only a partial embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A syringe positioning device comprising:

workstation, mounting panel and two syringe positioning seats, wherein, the mounting panel is installed perpendicularly on the workstation, there is vertical rectangular hole on the mounting panel, two syringe positioning seats are installed in the rectangular hole, its characterized in that: the two injector positioning seats are respectively provided with a push rod positioning seat and a needle cylinder positioning seat, the push rod positioning seat is positioned at the upper part of the needle cylinder positioning seat, and the push rod positioning seat and the needle cylinder positioning seat can move up and down in the strip hole along with the injector positioning seat.

2. The positioning device for the injector according to claim 1, wherein the positioning seat for the injector is a U-shaped groove, the positioning seat for the push rod and the positioning seat for the syringe are respectively disposed in the U-shaped groove of the U-shaped groove, and the U-shaped groove is clamped in the elongated hole.

3. The syringe positioning device of claim 2, wherein the syringe positioning seat is a long slot body, the long slot body is installed in the U-shaped slot, and the long slot body is parallel to the elongated hole.

4. The syringe positioning device according to claim 3, wherein the upper end of the long groove body is provided with a push rod port, two side groove walls close to the upper end are provided with syringe flange clamping grooves perpendicular to the long holes, the middle part is provided with a cylinder positioning groove, and the lower end part is provided with a pintle bayonet.

5. The syringe positioning device according to claim 2, wherein the push rod positioning seat is a boss, the boss is disposed in the U-shaped groove, and a push rod flange slot perpendicular to the elongated hole is disposed on the boss.

6. The syringe positioning device of claim 2, wherein the U-shaped groove is provided with a fastening structure, and the fastening structure comprises a locking part arranged on the left groove wall of the U-shaped groove and a corresponding locking groove arranged on the right groove wall.

7. The syringe positioning device of claim 6, wherein the locking portion is hinged to the left side groove wall of the U-shaped groove by a hinge, the locking portion can be turned around the hinge by 0-180 °, and when the locking portion is turned to the right and approaches the locking groove, the free end of the locking portion can be locked into the locking groove.

8. The syringe positioning device of claim 7, wherein the free end of the locking portion is provided with a projection which is press-fastened in the locking groove.

9. The syringe positioning device according to claim 1, wherein the table is provided with a test tube loading block, and an upper end surface of the test tube loading block is provided with a positioning slot hole which is positioned right below the syringe positioning seat.

10. The positioning device for the injector according to claim 9, wherein a limiting plate is mounted on the mounting plate, the limiting plate is located below the positioning seat for the syringe and parallel to the working table, and a limiting hole is formed in the limiting plate and located right above the positioning slot.