Disposable blood taking needle

Abstract

The utility model is applicable to the technical field of medical consumables, and provides a disposable blood taking needle, which comprises a needle handle and a needle plate, a needle hole is arranged at the bottom of the needle handle, a plain end is arranged at the top of the needle handle, a guide cavity is arranged in the needle handle, the needle plate is mounted in the guide cavity, the needle plate comprises a main body, a pressing part is arranged at the top of the main body, and the pressing part is exposed out of the plain end. A needle head is arranged at the bottom of the needle plate, an elastic piece is arranged between the bottom of the needle plate and the inner bottom of the guide cavity, notches are formed in the front face of the needle plate, wire grooves are formed in the front face of the needle handle, and clamping blocks are formed between the wire grooves. During use, the pressing part is directly pressed, the needle head extends out of the needle hole, the elastic piece is compressed, the needle plate slides in the needle handle, the clamping block falls into the notch to form limiting, the needle head does not return, and normal use can be achieved; after the blood taking needle is used, the clamping block is bent upwards, the needle plate automatically rebounds under the acting force of the elastic piece, and the needle head can be recovered into the needle handle, so that no potential safety hazard exists after the blood taking needle is thrown into a waste bag.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of medical consumables, especially relates to a disposable blood taking needle. BACKGROUND

[0002] Blood taking needle is a kind of small needle for measuring blood sugar level. This needle is usually made of stainless steel, the length is about 5-6mm, and the diameter is about 0.3-0.5mm. Blood sugar blood taking needle is usually used to measure blood sugar level so that diabetic patients can control blood sugar level. Its use method is as follows: first, prepare test paper, wipe finger with alcohol cotton ball or disinfecting cotton piece, wait for dry, insert blood sugar blood taking needle into the vein at the side of finger, press gently to make blood flow out, then collect blood, drop blood on test paper, wait for a few seconds until result appears. Finally, throw the used blood taking needle into waste bag as medical waste.

[0003] At present, most blood taking needles are with needle cap, expose needle before use by twisting off needle cap, and throw needle cap and blood taking needle into waste bag after use, since needle is exposed, needle can easily scratch waste bag, and there are many security risks in transporting medical waste. Although there are a small amount of blood taking needles that can insert needle cap on needle after use, needle cap is still easy to fall off, and safety cannot be guaranteed. CONTENT OF THE UTILITY MODEL

[0004] In view of the above problems, the utility model aims at providing a disposable blood taking needle, which aims at solving the above technical problems.

[0005] The utility model adopts the following technical scheme:

[0006] The disposable blood taking needle includes needle handle and needle plate, the needle handle bottom is provided with needle hole, the top has flat mouth, the needle handle interior has guide cavity, the needle plate is installed in the guide cavity, the needle plate includes main body, the main body top is press part, and the press part exposes the flat mouth, the press part width is less than the main body width, the needle plate bottom is provided with needle, the needle plate bottom and the guide cavity inner bottom are provided with elastic member, the needle plate front surface is provided with slot, and the slot forms clamping block between.

[0007] Further, the elastic member is plastic piece, the middle part is upwardly convex, and the center position is provided with long hole, and the needle passes through the long hole.

[0008] Further, the needle hole is provided with diaphragm.

[0009] Further, the clamping block includes plastic plate and lug below the front end of plastic plate, there is a distance between the lug and slot, and the front end of plastic plate is further provided with convex strip.

[0010] Further, the plastic plate is further provided with a crease groove.

[0011] Further, the needle handle has at least a stripe on the back.

[0012] The beneficial effects of the utility model are: in the product, the needle is located in the needle handle, directly pressing the pressing part during use, the needle is stretched out from the needle hole, and the elastic member is compressed, the needle plate slides in the needle handle, the clamping block falls into the notch to form the limit, the needle cannot retreat, and normal use can be realized; after use, the clamping block is bent upwards, under the action force of the elastic member, the needle plate automatically rebounds, and the needle can be restored to the needle handle, so that the safety hazard does not exist after the blood taking needle is thrown into the waste bag. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is the perspective view of the disposable blood taking needle bottom provided by the utility model embodiment;

[0014] Figure 2 is the section view of the disposable blood taking needle Figure One ;

[0015] Figure 3 is the section view of the disposable blood taking needle Figure Two ;

[0016] Figure 4 is the section view of the disposable blood taking needle Figure Three . DETAILED DESCRIPTION

[0017] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following will be further described in detail by combining with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model, and are not used to limit the utility model.

[0018] In order to explain the technical scheme of the utility model, the following will be described by specific embodiments.

[0019] As Figures 1-3 shown, the disposable blood taking needle provided by the embodiment includes a needle handle 1 and a needle plate 2, the needle handle 1 is provided with a needle hole 11 at the bottom, and a flat mouth 12 at the top, the needle handle 1 is internally provided with a guide cavity, the needle plate 2 is installed into the guide cavity, the needle plate 2 includes a main body 21, the top of the main body 21 is a pressing part 22, and the pressing part 22 exposes the flat mouth 12, the width of the pressing part 22 is less than the width of the main body 21, the bottom of the needle plate 2 is provided with a needle 23, the bottom of the needle plate 2 and the bottom of the guide cavity are provided with an elastic member 3, the front of the needle plate 2 is provided with a notch 24, and the front of the needle handle 1 is provided with a wire groove, and the wire groove is formed into a clamping block 25.

[0020] The whole disposable blood taking needle is flat, which is convenient to hold. The needle handle is a hollow structure with a guide cavity. The top of the guide cavity is flat. The needle plate is located in the guide cavity and can slide up and down. The elastic member under the needle plate provides support. In normal state, the state is as shown in Figure 2 The needle hole 11 has a diaphragm 14 with a thin thickness. When not in use, even if the blood taking needle outer package is opened, the diaphragm can still play a role in isolation, which is relatively sanitary,

[0021] In use, the press portion is pressed downward, the needle plate slides in the guide cavity, and the elastic member is deformed. The needle head extends from the needle hole. After pressing, the limiting is formed by the falling of the clamping block into the slot. As a specific structure, the clamping block 25 includes a plastic plate 251 and a protrusion 252 located below the front end of the plastic plate 251. There is a distance between the protrusion 252 and the slot 24. The front end of the plastic plate 251 also has a protrusion 253. The plastic plate has a certain elasticity, so the protrusion has a downward pressure. When the needle plate moves downward, the protrusion can automatically fall into the slot to form a limit.

[0022] When the blood taking needle operation is completed, the plastic plate is buckled upward. Because the front end of the plastic plate has a protrusion, the plastic plate is convenient to buckle. At this time, under the action of the elastic member, the needle plate returns to the original position, and the needle head retreats into the needle handle. Therefore, the needle head will not be exposed. There is no safety hazard when the blood taking needle is thrown into the waste bag. In addition, the plastic plate 251 also has a crease slot 254, so that the plastic plate can be directly deformed.

[0023] In the structure, the elastic member 3 is a plastic member with a long hole 31 in the center. The needle head 23 extends through the long hole 31. Because the plastic member stretches to both sides after being pressed downward, the long hole in the center of the plastic member can adapt to the deformation of the plastic member and does not interfere with the needle head. This structure design also ensures the supporting force of the elastic member.

[0024] In the diagram, it can be seen that the plastic plate is higher than the surface of the needle handle. When operating, the fingers are located below the plastic plate. The plastic plate can also play a limiting role, which is convenient to operate. In addition, the needle handle 1 has at least a stripe 15 on the back, which can also increase the friction.

[0025] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modification, equivalent replacement and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A disposable blood collection needle, characterized in that, The needle handle and needle plate are provided, the needle handle has a needle hole at the bottom and a flat mouth at the top, and has a guide cavity inside, the needle plate is installed in the guide cavity, the needle plate comprises a main body, the top of the main body is a pressing part, the pressing part is exposed from the flat mouth, the width of the pressing part is smaller than the width of the main body, the bottom of the needle plate has a needle head, a spring is arranged between the bottom of the needle plate and the bottom of the guide cavity, a notch is formed on the front of the needle plate, and a wire slot is formed on the front of the needle handle.

2. The lancet of claim 1 wherein, The spring is a plastic part, the middle part is upwardly convex, and a long hole is formed at the center position, and the needle head passes through the long hole.

3. The lancet of claim 2 wherein, A diaphragm is arranged on the needle hole.

4. The lancet of claim 3 wherein, The clamping block comprises a plastic plate and a protrusion below the front end of the plastic plate, a distance is formed between the protrusion and the notch, and a protruding strip is arranged at the front end of the plastic plate.

5. The lancet of claim 4 wherein the needle is a single-use needle. A crease slot is further formed on the plastic plate.

6. The lancet of claim 5 wherein, The needle handle has at least one stripe on the back.

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