CN211155820U

CN211155820U - Safety blood taking needle

Info

Publication number: CN211155820U
Application number: CN201921353828.XU
Authority: CN
Inventors: 李娟�
Original assignee: Union Hospital Tongji Medical College Huazhong University of Science and Technology
Current assignee: Union Hospital Tongji Medical College Huazhong University of Science and Technology
Priority date: 2019-08-20
Filing date: 2019-08-20
Publication date: 2020-08-04
Anticipated expiration: 2029-08-20

Abstract

The utility model discloses a safe type blood taking needle, including protection tube and blood taking needle, the inside sliding connection of protection tube has the push pipe. The utility model discloses in, the protection tube has been adopted, the blood taking needle, first spring and bayonet lock, medical personnel press down the press handle, the push pipe promotes slider and blood taking needle and passes through the draw-in groove and move down in the inside of slide rail, slider extrusion first spring simultaneously, bayonet lock roll-off second square hole simultaneously, the blood taking needle moves down when the bayonet lock card goes into first square hole, the blood taking needle is ejecting to stop, the bayonet lock card is in first square hole, prevent first spring extension, thereby fixed blood taking needle is not toward the inside shrink of protection tube, can take a blood sample, the blood sampling finishes the back, press the button, the button extrudees first square hole with the bayonet lock, first spring extension, promote blood taking needle and slider rebound, when the bayonet lock card goes into second square hole once more, the blood taking needle is in the protection tube completely, can prevent to prick medical personnel after preparing.

Description

Safety blood taking needle

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to a safe type blood taking needle.

Background

Medical instruments refer to instruments, devices, appliances, in-vitro diagnostic reagents and calibrators, materials and other similar or related items used directly or indirectly on the human body, including the required computer software.

In the work, the disposable blood taking needle for clinical use is easy to prick itself when taking blood and placing a needle head when the blood taking is finished, the clinical work is busy, the blood taking speed is high, and unsafe blood taking needles bring great occupational hazards.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a safety blood taking needle.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a safety blood taking needle comprises a protection tube and a blood taking needle, wherein a top tube is connected inside the protection tube in a sliding mode, a pressing handle is welded at the upper end of the top tube above the top surface of the protection tube, a sliding block is welded at the bottom surface of the top tube and is clamped inside a track welded on the inner wall of the protection tube in a sliding mode through a clamping groove, the sliding block is elastically connected with a fixing ring through a first spring, the fixing ring is welded inside the protection tube, a clamping pin is welded inside one side of the top tube, the blood taking needle is connected inside the top tube in an inserting mode, the lower end of the blood taking needle penetrates through the sliding block and the fixing ring and extends to the needle outlet top surface formed in the bottom surface of the protection tube, the top surface of the blood taking needle penetrates through the top tube and is in through connection with a luer connector, the switch is welded on the surface of the protection pipe on the outer side of the first square hole, and the switch is internally connected with a button through a second spring.

As a further description of the above technical solution:

the protection tube surface is pasted and is had the slipmat, and the slipmat is the rubber material.

As a further description of the above technical solution:

the button penetrates through the surface of one side of the switch device and is in sliding clamping connection with the switch device, and the button is of a rectangular structure.

As a further description of the above technical solution:

the blood taking needle is fixedly connected with the sliding block.

As a further description of the above technical solution:

the jacking pipe is connected with the protection pipe in a sliding mode.

As a further description of the above technical solution:

the bayonet lock is the better plastics material of elasticity, and bayonet lock and push pipe formula structure as an organic whole.

As a further description of the above technical solution:

the first square hole and the second square hole are the same in size and structure, and the first square hole is of a rectangular structure.

As a further description of the above technical solution:

the protection tube is of a cylindrical structure and is made of plastic materials.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

1. in the utility model, the protection tube, the blood taking needle, the first spring and the clamping pin are adopted, medical staff presses the pressing handle downwards, the push tube pushes the slider and the blood taking needle to move downwards in the slide rail through the clamping groove, the slider extrudes the first spring, the clamping pin slides out of the second square hole, the blood taking needle stops ejecting when the blood taking needle moves downwards until the clamping pin is clamped into the first square hole, the clamping pin is clamped in the first square hole to prevent the first spring from extending, so that the blood taking needle is fixed and does not shrink towards the inside of the protection tube to take blood, after the blood taking is finished, the button is pressed to extrude the clamping pin into the first square hole, the first spring extends to push the blood taking needle and the slider to move upwards, when the clamping pin is clamped into the second square hole again, the blood taking needle is completely taken into the protection tube, the medical staff can be prevented from pricking after the preparation and the pricking, the risk of needle stick injury is reduced when the workload is not increased, and the method is worthy of clinical popularization;

2. the utility model discloses in, adopted the slipmat, the slipmat is pasted on the protection tube surface, makes things convenient for medical personnel handheld, has avoided the emergence of the wet and slippery phenomenon of skidding easily of protection tube, has increased blood sampling efficiency.

Drawings

Fig. 1 is a schematic structural view of a safety blood taking needle provided by the utility model;

FIG. 2 is a side view of a safety blood taking needle according to the present invention;

fig. 3 is a sectional view of the safety blood taking needle of the present invention.

Illustration of the drawings:

1-protection tube, 2-top tube, 3-blood taking needle, 4-non-slip mat, 5-track, 6-neck, 7-first spring, 8-fixing ring, 9-needle outlet, 10-slide block, 11-second spring, 12-button, 13-first square hole, 14-switch, 15-second square hole, 16-bayonet lock, 17-luer connector and 18-pressing handle.

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.

Referring to fig. 1, 2 and 3, a safety blood taking needle comprises a protection tube 1 and a blood taking needle 3, wherein a top tube 2 is slidably connected inside the protection tube 1, a pressing handle 18 is welded on the upper end of the top tube 2 above the top surface of the protection tube 1, a slider 10 is welded on the bottom surface of the top tube 2, the slider 10 is slidably clamped inside a track 5 welded on the inner wall of the protection tube 1 through a clamping groove 6, the slider 10 is elastically connected with a fixing ring 8 through a first spring 7, the fixing ring 8 is welded inside the protection tube 1, a clamping pin 16 is welded inside the protection tube 1 on one side of the top tube 2, the blood taking needle 3 is inserted and connected inside the top tube 2, the lower end of the blood taking needle 3 penetrates through the slider 10 and the fixing ring 8 and extends to the top surface of a needle outlet 9 formed on the bottom surface of the protection tube 1, the top surface of the blood taking needle 3 penetrates, and a first square hole 13 is arranged on the surface of one side of the protection tube 1 below the second square hole 15, a switch 14 is welded on the surface of the protection tube 1 outside the first square hole 13, and the switch 14 is connected with a button 12 through a second spring 11.

Referring to fig. 1 and 2, an anti-slip pad 4 is adhered to the surface of a protection tube 1, the anti-slip pad 4 is made of rubber, a button 12 penetrates through the surface of one side of a switch 14 and is in sliding clamping connection with the switch 14, the button 12 is of a rectangular structure, a blood collection needle 3 is fixedly connected with a slider 10, a top tube 2 is in sliding connection with the protection tube 1, a bayonet 16 is made of plastic with good elasticity, the bayonet 16 and the top tube 2 are of an integral structure, a first square hole 13 and a second square hole 15 are the same in size and structure, the first square hole 13 is of a rectangular structure, the protection tube 1 is of a cylindrical structure, the protection tube 1 is made of plastic, anti-slip lines are arranged on the top surface of a pressing handle 18 to prevent a medical worker from slipping during pressing, the bayonet 6 and a rail 5 play a guiding role to prevent the top tube 2 from rotating in the protection tube 1, a second spring 11 helps the button to reset, and a luer, the blood can be conveniently drawn.

The working principle is as follows: when the device is used, a medical worker presses the pressing handle 18 downwards, the top tube 2 pushes the slider 10 and the blood taking needle 3 to move downwards in the sliding rail 5 through the clamping groove 6, the slider 5 extrudes the first spring 7, the clamping pin 16 slides out of the second square hole 15, the blood taking needle 3 moves downwards until the clamping pin 16 is clamped into the first square hole 13, the ejection of the blood taking needle 3 stops, the clamping pin 16 is clamped in the first square hole 13 to prevent the first spring 7 from extending, so that the blood taking needle 3 can be fixed without contracting towards the inside of the protection tube 1 to take blood, after the blood taking is finished, the button 12 is pressed, the clamping pin 16 is extruded out of the first square hole 13 by the button 12, the first spring 7 extends to push the blood taking needle 3 and the slider 10 to move upwards, when the clamping pin 16 is clamped into the second square hole 15 again, the blood taking needle 3 is completely retracted into the protection tube 1, the medical worker, the blood sampling device is low in cost and simple in operation method, reduces the risk of needle stick injury when the workload is not increased, is worthy of clinical popularization, meanwhile, the anti-slip mat 4 is pasted on the surface of the protection tube 1, is convenient for medical workers to hold, avoids the phenomenon that the protection tube 1 slips easily due to wet slip, and increases the blood sampling efficiency.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The safety blood taking needle comprises a protection tube (1) and a blood taking needle (3), and is characterized in that a top tube (2) is connected to the inside of the protection tube (1) in a sliding manner, a pressing handle (18) is welded to the upper end of the top tube (2) above the top surface of the protection tube (1), a sliding block (10) is welded to the bottom surface of the top tube (2), the sliding block (10) is connected to the inside of a track (5) welded to the inner wall of the protection tube (1) in a sliding manner through a clamping groove (6), the sliding block (10) is elastically connected with a fixing ring (8) through a first spring (7), the fixing ring (8) is welded to the inside of the protection tube (1), a clamping pin (16) is welded to one side of the top tube (2) inside the protection tube (1), the inside of the top tube (2) is connected with the blood taking needle (3) in an inserting manner, and the lower end of the blood taking needle (, blood taking needle (3) top surface runs through push pipe (2) and with luer connector (17) through connection, protection tube (1) side surface is located bayonet lock (16) and corresponds the position and has seted up second square hole (15), and second square hole (15) below is located protection tube (1) side surface and has seted up first square hole (13), first square hole (13) outside is located protection tube (1) skin weld and has switch (14), and switch (14) inside is connected with button (12) through second spring (11).

2. The safety blood taking needle according to claim 1, wherein the surface of the protection tube (1) is adhered with a non-slip mat (4), and the non-slip mat (4) is made of rubber.

3. A safety lancet according to claim 1, wherein the button (12) extends through a side surface of the switch (14) and is slidably engaged with the switch (14), and the button (12) has a rectangular configuration.

4. Safety lancet according to claim 1, characterised in that the lancet (3) is fixedly connected to a slider (10).

5. Safety lancet according to claim 1, characterised in that the top tube (2) is slidingly connected to a protective tube (1).

6. A safety lancet according to claim 1, characterised in that the latch (16) is of a resilient plastics material and the latch (16) is integral with the top tube (2).

7. A safety lancet according to claim 1, wherein the first square hole (13) and the second square hole (15) are identical in size and structure, and the first square hole (13) has a rectangular structure.

8. Safety lancet according to claim 1, characterised in that the protective tube (1) is of cylindrical construction and the protective tube (1) is of plastic material.