CN215651134U

CN215651134U - Blood taking needle for medical examination

Info

Publication number: CN215651134U
Application number: CN202122362022.0U
Authority: CN
Inventors: 夏雪
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-09-28
Filing date: 2021-09-28
Publication date: 2022-01-28
Anticipated expiration: 2031-09-28

Abstract

The utility model relates to the technical field of medical supplies, in particular to a blood taking needle for medical examination, which comprises a shell, a needle head and a pressing plate, the upper side in the shell is hermetically connected with an air extraction head, the lower side of the air extraction head is connected with a blood collection tube in a sliding way, the inner side of the blood collection tube is connected with a closed frame in a sliding way, the inner side of the lower end of the shell is connected with an elastic thread head in a spiral way, the lower end of the elastic thread head is fixedly connected with an elastic rotating piece, the middle position of the upper end of the elastic thread head is hermetically connected with a blood sampling head, through the arranged closed frame, the elastic rotating sheet and the blood sampling head, the elastic thread head can extrude the closed frame by utilizing the rotation of the elastic rotating sheet, so that the blood sampling head and the air suction head can be inserted into the blood sampling tube, furthermore, blood can be directly collected and processed through the blood collecting tube after blood collection, and the medical examination effect is prevented from being influenced by deviation generated in the process of changing the blood into the container.

Description

Blood taking needle for medical examination

Technical Field

The utility model relates to the technical field of medical supplies, in particular to a blood taking needle for medical examination.

Background

With the development of society, the application to the blood taking needle is increasingly extensive, and the blood taking needle is the instrument that is used for gathering blood sample in medical examination process, comprises syringe needle and needle bar, and the syringe needle is established at the head of needle bar, and sliding connection has the sheath on the needle bar, is equipped with reset spring and the initial position of sheath and needle bar's head between sheath and needle bar.

In the prior art, a needle cylinder is mostly adopted for directly collecting blood taking needles for medical examination, and collected blood is injected into a sample container after blood samples are collected, so that the blood is easily changed in the process of changing the container, and the blood examination effect is influenced; when blood is collected, the needle cylinder operated by two hands is easy to shake, so that the blood collecting effect is influenced, and the blood collecting device is not beneficial to blood collection and use.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a blood collection needle for medical examination to solve the problems of the related art.

In order to achieve the purpose, the utility model provides the following technical scheme:

a blood taking needle for medical examination comprises a shell, a needle head and a pressing plate, wherein the upper side inside the shell is hermetically connected with an air pumping head, a blood sampling tube is connected to the lower side of the air extraction head in a sliding manner, a closed frame is connected to the inner side of the blood sampling tube in a sliding manner, the closed frame is connected with the shell in a sliding way, the inner side of the lower end of the shell is spirally connected with an elastic thread head, the lower end of the elastic thread head is fixedly connected with an elastic rotating sheet which is connected with the shell in a sliding way, the middle position of the upper end of the elastic thread head is hermetically connected with a blood sampling head, the blood sampling head is connected with a blood sampling tube in a sliding way, a fixed air pipe is hermetically connected in the upper end of the shell in a specified way, a compressed air pipe is connected outside the fixed air pipe in a sliding way, the compressed air pipe is connected with the shell in a sliding mode, and a first spring is coated on the surface of the fixed air pipe in an outer covering mode.

Preferably, the middle position of the lower end of the elastic rotating piece is hermetically connected with a connector, and the outer side of the connector is slidably connected with a needle head.

Preferably, the outer surface of the closed frame is externally covered with a second spring, the inner side of the closed frame is fixedly connected with a blocking block, and the blocking block is connected with the blood sampling tube in a sliding manner.

Preferably, the upper end of the compressed air pipe is fixedly connected with a sliding rod, the sliding rod is connected with the shell in a sliding mode, and the upper end of the sliding rod is fixedly connected with a pressing plate.

Preferably, the number of the closed frames is two, the closed frame at the upper end is in sliding connection with the shell, and the closed frame at the lower end is in sliding connection with the elastic thread head.

Preferably, an air flow port is formed in the middle of the upper end of the blood collection tube, and a blood collection port is formed in the middle of the lower end of the blood collection tube.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the blood sampling device, the closed frame, the elastic rotating sheet and the blood sampling head are arranged, the elastic thread head can extrude the closed frame by utilizing the rotation of the elastic rotating sheet, so that the blood sampling head and the air extracting head can be inserted into the blood sampling tube, and then blood can be directly collected and processed through the blood sampling tube after blood sampling, so that the medical inspection effect is prevented from being influenced by deviation generated in the process of converting the blood into a container, and the blood can be conveniently inspected and used;

2. according to the utility model, through the arrangement of the fixed air pipe, the compressed air pipe and the first spring, the air between the fixed air pipe and the compressed air pipe can be discharged downwards by utilizing the lifting of the compressed air pipe, so that the air in the blood sampling pipe is discharged, and after the compressed air pipe is loosened, the air in the blood sampling pipe is pumped between the fixed air pipe and the compressed air pipe through the elastic stretching action of the first spring, so that the blood can be pumped into the blood sampling pipe, the sampling efficiency of the blood is facilitated, and the stability during blood drawing can be ensured.

Drawings

FIG. 1 is a schematic view of the overall mounting structure of the present invention;

FIG. 2 is a cross-sectional view of the mounting structure of FIG. 1 in accordance with the present invention;

FIG. 3 is a schematic view of the mounting structure of FIG. 2 at A in accordance with the present invention;

FIG. 4 is a perspective view of the mounting structure of the loosening and tightening screw head, the loosening and tightening rotary piece and the blood sampling head of the present invention;

fig. 5 is a schematic view of the installation structure of the blood collection tube, the closing frame and the second spring.

In the figure: 1. a housing; 2. an air pumping head; 3. a blood collection tube; 4. closing the frame; 5. loosening and tightening the thread head; 6. loosening and tightening the rotating sheet; 7. blood sampling head; 8. fixing the air pipe; 9. compressing the air pipe; 10. a first spring; 11. a connector; 12. a needle head; 13. a second spring; 14. a plugging block; 15. a slide bar; 16. and (7) pressing a plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.

In embodiment 1, referring to fig. 1 to 5, the present invention provides a technical solution: a blood taking needle for medical examination comprises a shell 1, a needle head 12 and a pressing plate 16, wherein the upper side inside the shell 1 is hermetically connected with an air extracting head 2, the lower side of the air extracting head 2 is slidably connected with a blood taking tube 3, the inner side of the blood taking tube 3 is slidably connected with a closed frame 4, the inner side of the lower end of the shell 1 is spirally connected with an elastic thread head 5, the lower end of the elastic thread head 5 is fixedly connected with an elastic rotating piece 6, the middle position of the upper end of the elastic thread head 5 is hermetically connected with a blood taking head 7, so that the elastic thread head 5 can move up and down through the rotating action of the elastic rotating piece 6, the closed frame 4 can move, the blood taking tube 3 can be dredged up and down, the blood taking treatment can be carried out on the blood taking tube 3, the blood taking tube 3 can be disassembled, the blood can be conveniently used for medical examination of blood, the middle position of the lower end of the elastic rotating piece 6 is hermetically connected with a connecting head 11, the outside sliding connection of connector 11 has syringe needle 12, can carry out blood collection through syringe needle 12, the outside surface of closed frame 4 is covered with second spring 13 outward, be convenient for after closed frame 4 removes, can stretch to the outside bullet automatically when dismantling, the inboard fixedly connected with shutoff piece 14 of closed frame 4, can carry out closed processing to heparin tube 3 after closed frame 4 removes to the outside, the quantity of closed frame 4 has two, sliding connection between closed frame 4 and the shell 1 that is located the upper end, sliding connection between closed frame 4 and the elasticity thread head 5 that is located the lower extreme, and then can make heparin tube 3 keep dredging, make blood can draw in heparin tube 3.

Example 2: referring to fig. 2-3, the difference between the present embodiment and embodiment 1 is: fixed trachea 8 of the inside regulation sealing connection in upper end of shell 1, fixed trachea 8's outside sliding connection has compressed trachea 9, removal through compressed trachea 9, make gas between the compressed trachea 9 can discharge or the suction, and then make the gas in the heparin tube 3 can discharge or take out, the blood sampling of heparin tube 3 of being convenient for is handled, fixed trachea 8's surface coats outward and has first spring 10, be convenient for push down the back at compressed trachea 9 and bounce automatically, compressed trachea 9's upper end fixedly connected with slide bar 15, slide bar 15's upper end fixedly connected with clamp plate 16, press down through the finger and make compressed trachea 9 can push down, and can make compressed trachea 9 bounce automatically after loosening clamp plate 16, the medical personnel's of being convenient for blood sampling inspection is used.

The working process is as follows: when the device is used, no power supply is adopted for supplying power, when the blood sampling treatment is carried out in the medical examination, the pressing plate 16 is pressed downwards, the sliding rod 15 drives the compressed air pipe 9 to move downwards, further, the air between the compressed air pipe 9 and the fixed air pipe 8 can be discharged downwards, further, the air in the blood sampling pipe 3 can be discharged downwards and inserted into the blood vessel of a human body through the needle head 12, meanwhile, the pressing plate 16 is loosened, the first spring 10 is made to stretch, so that the compressed air pipe 9 moves upwards, the air in the blood sampling pipe 3 can be pumped upwards, the blood is pumped out through the needle head 12, the blood is pumped into the blood sampling pipe 3 through the blood sampling head 7, the blood can be directly sampled and collected and treated, the container does not need to be replaced, the examination result of the blood is more effective, and the blood sampling head 7 can be driven to move downwards by the elastic thread head 5 through the reverse rotation of the elastic rotating sheet 6 after the blood is collected, thereby make blood sampling head 7 and bleed head 2 can follow and remove in heparin tube 3 to make heparin tube 3 can obtain tearing open, be convenient for retrieve heparin tube 3, and then the blood sampling of the medical examination of being convenient for is used.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a blood taking needle for medical examination, includes shell (1), syringe needle (12) and clamp plate (16), its characterized in that: the utility model discloses a blood sampling device, including shell (1), sealed connection of the inside upside of shell (1) has the head of taking out air (2), the downside sliding connection of head of taking out air (2) has heparin tube (3), the inboard sliding connection of heparin tube (3) has closed frame (4), sliding connection between closed frame (4) and shell (1), the inboard screwed connection of the lower extreme of shell (1) has elasticity thread head (5), the lower extreme fixedly connected with elasticity rotor (6) of elasticity thread head (5), sliding connection between elasticity rotor (6) and shell (1), the upper end intermediate position department sealed connection of elasticity thread head (5) has blood sampling head (7), sliding connection between blood sampling head (7) and heparin tube (3), the inside regulation sealed connection in upper end of shell (1) has fixed trachea (8), the outside sliding connection of fixed trachea (8) has compressed air pipe (9), the compressed air pipe (9) is connected with the shell (1) in a sliding mode, and a first spring (10) is coated on the surface of the fixed air pipe (8) in an external mode.

2. A medical examination blood lancet according to claim 1, characterized in that: the middle position of the lower end of the elastic rotating piece (6) is hermetically connected with a connector (11), and the outer side of the connector (11) is slidably connected with a needle head (12).

3. A medical examination blood lancet according to claim 1, characterized in that: the outside surface of closed frame (4) coats and has second spring (13), inboard fixedly connected with shutoff piece (14) of closed frame (4), sliding connection between shutoff piece (14) and heparin tube (3).

4. A medical examination blood lancet according to claim 1, characterized in that: the upper end fixedly connected with slide bar (15) of compressed air pipe (9), sliding connection between slide bar (15) and shell (1), the upper end fixedly connected with clamp plate (16) of slide bar (15).

5. A medical examination blood lancet according to claim 1, characterized in that: the number of the closed frames (4) is two, the closed frames (4) positioned at the upper end are in sliding connection with the shell (1), and the closed frames (4) positioned at the lower end are in sliding connection with the elastic thread heads (5).

6. A medical examination blood lancet according to claim 1, characterized in that: an air flow opening is formed in the middle of the upper end of the blood collection tube (3), and a blood collection opening is formed in the middle of the lower end of the blood collection tube (3).