CN211381381U

CN211381381U - Blood taking needle for medical examination

Info

Publication number: CN211381381U
Application number: CN201921231092.9U
Authority: CN
Inventors: 何立鹃; 李晓明
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-08-01
Filing date: 2019-08-01
Publication date: 2020-09-01
Anticipated expiration: 2029-08-01

Abstract

The utility model discloses a blood taking needle for medical treatment inspection, including cylinder main part, cylinder part, first movable rod and press the clamp plate, the cylinder part is installed to the bottom of cylinder main part, the bottom of carrying the arm-tie is connected with first rack, the outside of cylinder main part is fixed with the device storehouse, the inside of through-hole is provided with the second movable rod, the one end that the second movable rod is close to the device storehouse is fixed with the stopper, the inside one side of keeping away from the second movable rod in device storehouse has seted up the spout, the top of second rack is provided with the connecting rod, the inside in device storehouse is provided with the pivot, and the pivot runs through the device storehouse to the outside of pivot is fixed with the gear. This blood taking needle for medical examination can carry on spacingly and extract anticipated blood volume that can be fine at the blood sampling in-process to carrying the pull rod to and can singlehanded blood sampling operation, make things convenient for medical personnel to stabilize the syringe needle with another hand.

Description

Blood taking needle for medical examination

Technical Field

The utility model relates to a medical treatment inspection technical field specifically is a blood taking needle for medical treatment inspection.

Background

Along with the development of modern society, people's attention to health is more and more high, and many people all can select to go the medical institution of formal at certain intervals and take a blood sample, then through professional's inspection, and then know own health to ensure self healthy, this blood taking needle for medical examination just needs to be used, and current blood taking needle for medical examination has following problem nevertheless:

1. in the process of blood collection of the existing blood collection needle for medical examination, the amount of collected blood is mostly controlled by medical care personnel, and because the blood collection amount is easy to come in and go out a little from the expected blood collection amount by naked eyes and manual operation, the small amount of collected blood can cause insufficient examination dosage, and the large amount of collected blood can cause unnecessary damage to human bodies;

2. in the blood sampling process, medical personnel generally hold the needle cylinder with one hand and pull the push-pull rod with the other hand, so that the medical personnel can not stabilize the contact place of the needle head and the skin of a human body while sampling blood, the needle head is easy to shake, and unnecessary injury is caused to a blood-sampled person.

In order to solve the above problems, innovative design based on a blood collection needle for medical examination is urgently needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a blood taking needle for medical examination to solve above-mentioned background art and carry the unable very accurate predetermined blood volume of extraction of blood taking needle for medical examination that appears, and need both hands concurrent operation, can't carry out the problem of other operations simultaneously in the blood sampling in-process.

In order to achieve the above object, the utility model provides a following technical scheme: a blood taking needle for medical examination comprises a needle cylinder body, a needle head part, a first movable rod and a pressing plate, wherein the needle head part is installed at the bottom of the needle cylinder body, the needle head part is communicated with the needle cylinder body, the first movable rod is arranged inside the needle cylinder body, a lifting plate is fixed at the top of the first movable rod, a first rack is connected to the bottom of the lifting plate, a limiting rod is installed at the bottom of the first rack, a device bin is fixed on the outer side of the needle cylinder body, a groove is formed in one side of the device bin, a through hole is formed in one side of the device bin, a second movable rod is arranged inside the through hole, a movable block is installed on the outer side of the second movable rod, a limiting block is fixed at one end, close to the device bin, of the second movable rod, a spring is installed on one side, far away from the device bin, of the spring is connected with the movable block, and the one end that the stopper was kept away from to the second movable rod is connected with the arc and pulls the pole, the inside one side of keeping away from the second movable rod in device storehouse has seted up the spout, and the internally mounted of spout has the slider to one side that the spout was kept away from to the slider is fixed with the second rack, the top of second rack is provided with the connecting rod, and the connecting rod keeps away from one side of second movable rod and installs the pressing plate, the inside in device storehouse is provided with the pivot, and the pivot runs through the device storehouse to the outside of pivot is fixed with the gear.

Preferably, the overlooking cross section of the limiting block is trapezoidal, the spring is arranged on the long edge of the limiting block, and the transverse center line of the limiting block is perpendicular to the longitudinal center line of the through hole.

Preferably, the transverse center line of the rotating shaft is perpendicular to the longitudinal center line of the device bin, and the rotating shaft and the device bin form a relative rotating structure.

Preferably, the transverse center line of the gear is on the same plane as the transverse center lines of the first rack and the second rack, and the gear is respectively engaged with the first rack and the second rack.

Preferably, the width of the through hole is smaller than that of the movable block, and the through hole is perpendicular to the second movable rod.

Compared with the prior art, the beneficial effects of the utility model are that: the blood taking needle for medical examination can limit the lifting rod, can well draw the expected blood volume in the blood taking process, can carry out blood taking operation by one hand, and is convenient for medical staff to stabilize the needle head by the other hand;

1. the limiting block is moved to the position of the expected blood volume, and in the blood sampling process, when the lifting plate is moved to the expected position, the limiting block limits the limiting rod, so that the lifting plate can not be moved any more, and the expected blood volume can be accurately extracted;

2. press down the pressing plate with the thumb when holding the outside in device storehouse, can make and carry and draw the lifting plate rebound, and then accomplish the blood sampling operation for this blood taking needle can be operated by the one hand, and then makes medical personnel can utilize another hand to stabilize syringe needle part at the in-process of blood sampling, guarantees that syringe needle part can not rock.

Drawings

FIG. 1 is a schematic sectional view of the front view of the present invention;

fig. 2 is an enlarged schematic view of a portion a of fig. 1 according to the present invention;

FIG. 3 is a schematic top view of the present invention;

fig. 4 is a schematic top sectional view of the present invention.

In the figure: 1. a syringe body; 2. a needle portion; 3. a first movable bar; 4. lifting the plate; 5. a first rack; 6. a limiting rod; 7. a device bin; 8. a second movable bar; 9. a movable block; 10. a limiting block; 11. a spring; 12. an arc-shaped pulling rod; 13. a chute; 14. a slider; 15. a second rack; 16. a connecting rod; 17. a pressing plate; 18. a rotating shaft; 19. a gear; 20. a through hole; 21. and (4) a groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a blood taking needle for medical examination comprises a needle cylinder body 1, a needle head part 2, a first movable rod 3, a lifting plate 4, a first rack 5, a limiting rod 6, a device bin 7, a second movable rod 8, a movable block 9, a limiting block 10, a spring 11, an arc-shaped pulling rod 12, a sliding chute 13, a sliding block 14, a second rack 15, a connecting rod 16, a pressing plate 17, a rotating shaft 18, a gear 19, a through hole 20 and a groove 21, wherein the needle head part 2 is installed at the bottom of the needle cylinder body 1, the needle head part 2 is communicated with the needle cylinder body 1, the first movable rod 3 is arranged inside the needle cylinder body 1, the lifting plate 4 is fixed at the top of the first movable rod 3, the first rack 5 is connected to the bottom of the lifting plate 4, the limiting rod 6 is installed at the bottom of the first rack 5, the device bin 7 is fixed on the outer side of the needle cylinder body 1, and the groove 21 is formed in one side, a through hole 20 is formed in one side of the device bin 7, a second movable rod 8 is arranged in the through hole 20, a movable block 9 is arranged on the outer side of the second movable rod 8, a limiting block 10 is fixed at one end, close to the device bin 7, of the second movable rod 8, a spring 11 is arranged at one side, far away from the device bin 7, of the limiting block 10, one end, far away from the limiting block 10, of the spring 11 is connected with the movable block 9, an arc-shaped pulling rod 12 is connected at one end, far away from the limiting block 10, of the second movable rod 8, a sliding groove 13 is formed in one side, far away from the second movable rod 8, of the device bin 7, a sliding block 14 is arranged in the sliding groove 13, a second rack 15 is fixed at one side, far away from the sliding groove 13, of the sliding block 14, a connecting rod 16 is arranged at the top of the second rack 15, a pressing, the rotating shaft 18 penetrates through the device bin 7, and a gear 19 is fixed on the outer side of the rotating shaft 18.

The overlooking section of the limiting block 10 is trapezoidal, the spring 11 is arranged on the long side of the limiting block 10, the transverse central line of the limiting block 10 is perpendicular to the longitudinal central line of the through hole 20, the width of the through hole 20 is smaller than that of the movable block 9, and the through hole 20 is perpendicular to the second movable rod 8, so that the second movable rod 8 can be stabilized when the limiting block 10 is not moved, and the stabilization of the second movable rod 8 can be released when the limiting block 10 moves transversely, so that the second movable rod 8 can move up and down in the through hole 20;

the transverse central line of the rotating shaft 18 is perpendicular to the longitudinal central line of the device bin 7, the rotating shaft 18 and the device bin 7 form a relative rotating structure, the transverse central line of the gear 19 is arranged on the same surface as the transverse central lines of the first rack 5 and the second rack 15, and the gear 19 is meshed with the first rack 5 and the second rack 15 respectively, so that when the second rack 15 is pressed to move downwards, the gear 19 on the rotating shaft 18 can be driven to rotate, the first rack 5 is driven to move upwards, and the lifting plate 4 can move upwards to finish blood sampling operation.

The working principle is as follows: when the blood taking needle for medical examination is used, as shown in fig. 1 and 4, the second movable rod 8 and the device bin 7 and the movable block 9 respectively slide, under the elastic action of the spring 11, the arc pulling rod 12 can be pulled, and when the arc pulling rod 12 is pulled, the stopper 10 is driven to move in the direction away from the device bin 7, and simultaneously, through the trapezoidal shape of the stopper 10, the stopper 10 is not contacted with the syringe main body 1 after moving for a distance at one end, so that the syringe main body 1 does not limit the up-and-down movement of the stopper 10 by friction force, through the sliding connection between the through hole 20 and the second movable rod 8, the stopper 10 can be moved up and down, the arc pulling rod 12 is pulled and the arc pulling rod 12 is moved to the scale of the predetermined blood volume, the arc pulling rod 12 is released, under the elastic action of the spring 11, the limiting block 10 is contacted with the syringe main body 1 again, the limiting block 10 is fixed on the syringe main body 1 through the elastic action of the spring 11 and the cooperation of the friction force between the limiting block 10 and the syringe main body 1, the blood sampling operation is started, the lifting plate 4 continuously ascends, when the limiting rod 6 is contacted with the limiting block 10, the limiting block 10 limits the limiting rod 6, the lifting plate 4 can not be moved any more, and the blood taking needle can accurately take the expected blood volume;

as shown in fig. 1, the sliding block 14 slides in the sliding groove 13, so that the second rack 15 can be pressed, and the gear 19 is respectively connected with the first rack 5 and the second rack 15 in a meshed manner, so that when the second rack 15 is pressed to move downwards, the first rack 5 can move upwards, and further the pulling plate 4 is driven to move upwards, as shown in fig. 3, a medical worker can press the pressing plate 17 by a thumb when holding the device bin 7, so that the blood sampling operation can be performed by the blood sampling needle with one hand, and the medical worker can stabilize the needle head part 2 by using the other hand, thereby avoiding the needle head part 2 from shaking in the blood sampling process and causing unnecessary injury to the blood-sampled person.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a blood taking needle for medical examination, includes cylinder main part (1), syringe needle part (2), first movable rod (3) and press platen (17), its characterized in that: the needle head part (2) is installed at the bottom of the needle cylinder main body (1), the needle head part (2) is communicated with the needle cylinder main body (1), a first movable rod (3) is arranged inside the needle cylinder main body (1), a lifting plate (4) is fixed at the top of the first movable rod (3), the bottom of the lifting plate (4) is connected with a first rack (5), a limiting rod (6) is installed at the bottom of the first rack (5), a device bin (7) is fixed on the outer side of the needle cylinder main body (1), a groove (21) is formed in one side of the device bin (7), a through hole (20) is formed in one side of the device bin (7), a second movable rod (8) is arranged inside the through hole (20), a movable block (9) is installed on the outer side of the second movable rod (8), and a limiting block (10) is fixed at one end, close to the second movable rod (8), of the device bin (7), and one side of the limiting block (10) far away from the device bin (7) is provided with a spring (11), and one end of the spring (11) far away from the limiting block (10) is connected with the movable block (9), and one end of the second movable rod (8) far away from the limiting block (10) is connected with an arc pulling rod (12), a sliding groove (13) is arranged on one side of the interior of the device bin (7) far away from the second movable rod (8), a sliding block (14) is arranged in the sliding groove (13), a second rack (15) is fixed on one side of the sliding block (14) far away from the sliding chute (13), a connecting rod (16) is arranged at the top of the second rack (15), a pressing plate (17) is arranged on one side of the connecting rod (16) far away from the second movable rod (8), a rotating shaft (18) is arranged in the device bin (7), the rotating shaft (18) penetrates through the device bin (7), and a gear (19) is fixed on the outer side of the rotating shaft (18).

2. A medical examination blood lancet according to claim 1, characterized in that: the overlook cross-sectional shape of stopper (10) is trapezoidal, and spring (11) install in the long limit of stopper (10) to the horizontal central line of stopper (10) and the vertical central line mutually perpendicular of through-hole (20).

3. A medical examination blood lancet according to claim 1, characterized in that: the transverse center line of the rotating shaft (18) is perpendicular to the longitudinal center line of the device bin (7), and the rotating shaft (18) and the device bin (7) form a relative rotating structure.

4. A medical examination blood lancet according to claim 1, characterized in that: the transverse center line of the gear (19) and the transverse center lines of the first rack (5) and the second rack (15) are on the same surface, and the gear (19) is respectively meshed and connected with the first rack (5) and the second rack (15).

5. A medical examination blood lancet according to claim 1, characterized in that: the width of the through hole (20) is smaller than that of the movable block (9), and the through hole (20) is perpendicular to the second movable rod (8).