CN204683616U - A kind of safe blood-taking needle for blood-glucose meter - Google Patents

Abstract

The utility model discloses a safety blood collection needle used for a blood glucose meter, which belongs to the field of clinical medicine. The invention includes a blood collection cylinder and a pressing cylinder connected vertically, a blood collection slider and a blood collection needle are arranged in the blood collection cylinder, and a pressing slider is arranged in the pressing cylinder. The utility model drives the blood collection needle to puncture the skin of the pulp of the finger by driving the blood collection slider, and with the assistance of the pressing slider, the number of times of pressing the patient's finger can be reduced to obtain a sufficient amount of blood for measuring blood sugar. It can reduce the defects in the prior art that wounds of different depths are left to the patient due to the inability to control the protruding length of the blood collection needle, and can also prevent the pain caused by scratching other parts of the finger by the blood collection needle due to the movement of the patient's fingers during the blood collection process.

Description

A safety lancet for blood glucose meter

technical field

The utility model relates to the field of clinical medicine, in particular to a safety blood collection needle used for a blood glucose meter.

Background technique

When the patient is testing blood sugar, first use alcohol to disinfect the patient's fingertips, and then use a blood collection needle to puncture the skin of the sterilized fingertips, causing a drop of blood to leak out and wipe off the blood drop, and then from the end of the finger to it. Squeeze the skin of the finger between the fingers, so that blood oozes from the wound on the fingertip. At this time, the blood that has just oozes is dipped with a test paper, and then the blood sugar is monitored based on the blood dipped on the test paper.

In the prior art, the blood collection needle used when puncturing the skin of the patient's fingertip is an elastic structure. Specifically, when the elastic shell of the blood collection needle is squeezed by the patient's fingertip, it will shrink inward to expose the blood collection needle, thereby making the The exposed tip of the lancet punctured the skin of the patient's fingertip.

In the process of realizing the utility model, the inventor finds that the prior art has at least the following problems:

The elastic module in the existing blood collection needle is too consistent in strength of the built-in spring, so that in the actual blood collection process, for fingers of different sizes, due to the different pressure on the elastic module, the exposed length of the blood collection needle tip is also inconsistent. , will cause wounds of different depths between patients; at the same time, during the blood collection process, the patient's fingers cannot remain still for a long time. Once the fingers move during blood collection, the blood collection needle will easily scratch other parts of the finger, increasing the patient's pain.

Contents of the invention

In order to solve the problems of the prior art, the utility model provides a safety blood collection needle for a blood glucose meter, and the safety blood collection needle for a blood glucose meter includes:

A blood collection cylinder, a sliding blood collection slider is arranged on the gap of the outer wall of the blood collection cylinder, a blood collection needle is arranged in the blood collection cylinder, and an upper limit is also arranged on the inner wall of the blood collection cylinder a slider and a lower limit slider, the end of the blood sampling slider is located between the upper limit slider and the lower limit slider;

The pressing cylinder is provided with a chute on the side wall of the pressing cylinder, and a pressing slider is embedded in the chute, and at least two flexible protrusions are arranged on the surface of the pressing slider inside the pressing cylinder. rise;

The blood collection cylinder is vertically connected to the pressing cylinder.

Optionally, the blood sampling slider includes:

The first blood collection slider located on the outer wall of the blood collection cylinder;

A blood collection needle holder vertically fixed to the first blood collection slider;

The second blood collection slider is located in the blood collection cartridge and fixed on the blood collection needle seat.

Optionally, the blood collection needle includes:

a spring base plate fixed at the end of the blood collection needle;

A spring baffle fixed on the inner side wall of the blood collection cylinder;

A spring located between the spring base plate and the spring stopper.

Optionally, the blood collection cartridge includes:

An open window is provided at the end where the blood collection cylinder is connected to the pressing cylinder;

An arc-shaped top cover is provided on the end face of the blood collection cylinder connected away from the pressing cylinder.

Optionally, the pressing cylinder includes:

A flexible sleeve is provided at the end of the pressing cylinder away from the blood collection cylinder.

The beneficial effects brought by the technical solution provided by the utility model are:

By driving the blood collection slider to puncture the skin of the pulp of the finger with the blood collection needle, and with the assistance of pressing the slider, the number of times of pressing the patient's finger can be reduced to obtain a sufficient amount of blood for measuring blood sugar. It can reduce the defect in the prior art that wounds of different depths are left to the patient due to the inability to control the protruding length of the blood collection needle, and can also prevent the pain caused by scratching other parts of the finger by the blood collection needle due to the movement of the patient's fingers during the blood collection process.

Description of drawings

In order to illustrate the technical solution of the utility model more clearly, the accompanying drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the utility model. For Those of ordinary skill in the art can also obtain other drawings based on these drawings without making creative efforts.

Fig. 1 is a schematic structural view of a safety blood collection needle for a blood glucose meter provided by the present invention;

Fig. 2 is a partial structural schematic diagram of a safety blood collection needle for a blood glucose meter provided by the utility model;

Fig. 3 is a schematic diagram of the appearance of a safety blood collection needle for a blood glucose meter provided by the present invention.

Detailed ways

In order to make the structure and advantages of the utility model clearer, the structure of the utility model will be further described below in conjunction with the accompanying drawings.

Embodiment one

The utility model provides a safety blood collection needle for a blood glucose meter, as shown in Figure 1, the safety blood collection needle for a blood glucose meter comprises:

The blood collection cylinder 1 is provided with a sliding blood collection slider 2 on the gap of the outer wall of the blood collection cylinder 1, and a blood collection needle 3 is arranged inside the blood collection cylinder 1, and inside the blood collection cylinder 1 An upper limit slider 11 and a lower limit slider 12 are also arranged on the wall, and the end of the blood collection slider 2 is located between the upper limit slider 11 and the lower limit slider 12;

The pressing cylinder 4 is provided with a chute 41 on the side wall of the pressing cylinder 4, and a pressing slider 5 is embedded in the chute 41, and the pressing slider 5 is located in the pressing cylinder 4 At least two flexible protrusions 51 are arranged on the surface of the

The blood collection cylinder 1 is vertically connected to the pressing cylinder 4 .

In practice, the safety blood collection needle for a blood glucose meter includes two parts, a blood collection cylinder 1 and a pressing cylinder 4, which are vertically connected as shown in FIG. 1 . After the patient's finger is inserted into the pressing cylinder 4, the finger pulp is placed directly below the blood collection needle 3 in the blood collection cylinder 1, and the blood collection needle 3 is driven by the movement of the blood collection slider 2 to puncture the finger, and the blood collection for measuring blood sugar is completed. operate.

A blood collection slider 2 is arranged on the outer wall of the blood collection cylinder 1, and the blood collection slider 2 extends into the inner part of the blood collection cylinder 1, and a blood collection needle 3 is installed vertically so that the needle body direction of the blood collection needle 3 is in line with the blood collection needle. The axis of cylinder 1 is parallel. Simultaneously, a limit slider is also arranged on the inner side wall of the blood collection cylinder body 1. From the position, it is specifically divided into an upper limit slider 11 and a lower limit slider 12. As can be seen from FIG. 1 , the blood collection slider 2 The end can only move in the limit space formed between the upper limit slider 11 and the lower limit slider 12, which limits the distance that the blood collection needle 3 moves up and down in disguise, thereby avoiding the excessively long movement distance of the blood collection needle 3 and making it difficult for the patient. The occurrence of the situation where the finger penetrates too deeply reflects the safety of the device when taking blood.

On the side wall of the pressing cylinder 4, a chute 41 is provided, and a pressing slider 5 is embedded in the chute 41, so that the pressing slider 5 can move linearly back and forth along the chute 41 on the chute 41, thereby To the pressing effect on the inner side of the finger stretched into the pressing cylinder 4, it is convenient to use the blood collection needle 3 to puncture the patient's finger pulp after the blood collection operation.

Further, in order to reduce the number of times of pressing the patient's fingers, at least two flexible protrusions 51 are arranged on the surface of the pressing slider 5 located in the pressing cylinder 4, and the pressing effect on the patient's fingers can be increased by these flexible protrusions 51, This makes it possible to obtain a sufficient amount of blood for measuring blood sugar without pressing the slider 5 multiple times.

This embodiment proposes a safety blood collection needle for blood glucose meters. The safety blood collection needle includes a vertically connected blood collection cylinder and a pressing cylinder. A blood collection slider and a blood collection needle are arranged in the blood collection cylinder. There is a pressing slider, through which the blood collection slider drives the blood collection needle to puncture the skin of the finger pulp, and with the assistance of the pressing slider, the number of times of pressing the patient's finger can be reduced to obtain a sufficient amount of blood for measuring blood sugar . It can reduce the defect in the prior art that wounds of different depths are left to the patient due to the inability to control the protruding length of the blood collection needle, and can also prevent the pain caused by scratching other parts of the finger by the blood collection needle due to the movement of the patient's fingers during the blood collection process.

Optionally, as shown in Figure 2, the blood sampling slider 2 includes:

The first blood collection slider 21 located on the outer wall of the blood collection cylinder 1;

A blood collection needle holder 22 vertically fixed to the first blood collection slider 21;

The second blood collection slider 23 is located in the blood collection cartridge body 1 and fixed on the blood collection needle holder 22 .

In practice, in the blood sampling slider 2, the first blood sampling slider 21 is located outside the gap of the side wall of the blood sampling cylinder body 1, and on the inner side of the gap, a second blood sampling slider 23 is provided. The second blood sampling slider The block 23 is used to assist the stability of the first blood collection slider 21 when moving, so as to avoid falling off from the blood collection cartridge 1 when moving.

In addition, the blood collection needle holder 22 in the blood collection slider 2, on the one hand, has the effect of fixing the first blood collection slider 21 and the second blood collection slider 23 as a whole; on the other hand, on the blood collection needle holder 22, vertical The blood collection needle 3 is fixed so that the direction of the blood collection needle 3 remains parallel to the axis of the blood collection cylinder 1, so that when blood is collected, the blood collection needle can puncture the skin of the finger perpendicular to the patient's finger, reducing the area of the punctured finger. In addition, the end of the blood collection needle holder 22 is located in the limit space formed between the upper limit slider 11 and the lower limit slider 12, which has the effect of limiting the moving distance of the blood taking needle 3 and reducing Occurs when the finger penetrates too deeply into the patient.

Optionally, as shown in Figure 2, the blood collection needle 3 includes:

A spring base plate 31 fixed at the end of the blood collection needle 3;

A spring baffle 32 fixed on the inner side wall of the blood collection cylinder 1;

The spring 33 is located between the spring bottom plate 31 and the spring stopper 32 .

In practice, a spring bottom plate 31 fixed on the blood collection needle 3 is provided at the end of the blood collection needle close to the blood collection slider 2, and a spring stopper 32 is provided on the inner side wall of the blood collection cylinder body 1, the spring stopper The plate 32 is provided with a small hole for the blood collection needle 3 to pass through. A spring 33 is installed between the spring bottom plate 31 and the spring stopper 32 . Based on the above structure, when the sliding blood collection slider 2 drives the blood collection needle 3 to puncture the patient's finger skin, since the distance between the spring base plate 31 and the spring baffle 32 decreases, the spring 33 is in a compressed state, and the finger is punctured. After the operation is completed, when the blood collection slider 2 is released, due to the restoring force of the spring 33 in the compressed state, the blood collection slider 2 moves upwards, driving the blood collection needle 3 to move rapidly away from the patient's finger, preventing the blood collection needle 3 from If the rebound is not timely, the patient's finger will be injured.

Optionally, as shown in Figure 3, the blood collection cartridge 1 includes:

An open window 6 is provided at the end of the blood collection cylinder 1 connected to the pressing cylinder 4;

On the end face of the blood collection cylinder 1 connected away from the pressing cylinder 4, a circular top cover 7 is provided.

In practice, due to the needs of blood sugar measurement, the first drop of blood that oozes out after the finger is punctured with the blood collection needle 3 needs to be wiped off, and then the squeezed blood can be used as a sample for testing blood sugar. In order to facilitate the wiping of blood and the use of test paper to pick up blood in the later stage, a window 6 is specially set up on the side wall of the connection between the blood collection cylinder 1 and the pressing cylinder 4. Through this window 6, the medical staff can insert the cotton ball into the blood collection Inside the barrel 1, wipe off the first drop of blood. After pushing and pressing the slider 5 to make new blood ooze from the patient's finger, the medical staff can still conveniently insert the test paper into the blood collection barrel 1 through the window. Blood is drawn for testing blood sugar. During the blood collection, since the patient's finger is always in the pressing cylinder 4, and the blood collection needle 3 retreats to the inside of the blood collection cylinder 1 under the action of the spring 33, the patient's finger will not be damaged when the medical staff takes blood. Move, also can not be pricked by blood collection needle 3, thereby has improved the efficiency of medical personnel's blood collection.

On the end face of the blood collection cylinder 1 connected away from the pressing cylinder 4, a top cover 7 is provided. The top cover 7 can take an arc-shaped appearance to reduce the possibility of bruising. At the same time, the top cover 7 can also prevent sundries from entering The end face enters the inside of the blood collection cylinder 1; at the same time, the top cover 7 can be removed to facilitate the disinfection and maintenance of the components in the blood collection cylinder 1.

Optionally, as shown in Figure 3, the pressing cylinder 4 includes:

A flexible sleeve 8 is provided at the end of the pressing cylinder away from the blood collection cylinder.

In practice, a flexible sleeve 8 can also be installed on the end face of the pressing cylinder 4 away from the end of the blood collection cylinder 1, and the flexible sleeve 8 can be made of rubber or silicone, so that when the patient puts his fingers into the pressure When inside the cylinder 4, the root of the finger will not be in direct contact with the end face of the pressing cylinder, reducing the discomfort at the root of the finger due to extrusion.

This embodiment proposes a safety blood collection needle for blood glucose meters. The safety blood collection needle includes a vertically connected blood collection cylinder and a pressing cylinder. A blood collection slider and a blood collection needle are arranged in the blood collection cylinder. There is a pressing slider, through which the blood collection slider drives the blood collection needle to puncture the skin of the finger pulp, and with the assistance of the pressing slider, the number of times of pressing the patient's finger can be reduced to obtain a sufficient amount of blood for measuring blood sugar . It can reduce the defect in the prior art that wounds of different depths are left to the patient due to the inability to control the protruding length of the blood collection needle, and can also prevent the pain caused by scratching other parts of the finger by the blood collection needle due to the movement of the patient's fingers during the blood collection process.

It should be noted that the embodiment of blood collection provided by the safety lancet provided in the above embodiment is only used as an illustration of the actual application of the safety lancet, and the above safety lancet can also be used in other application scenarios according to actual needs , and its specific implementation process is similar to the above-mentioned embodiment, and will not be repeated here.

The serial numbers in the above embodiments are for description only, and do not represent the sequence of the components during assembly or use.

The above is only an embodiment of the utility model, and is not intended to limit the utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model shall be included in the utility model. within the scope of protection.

Claims (5)

1. for a safe blood-taking needle for blood-glucose meter, it is characterized in that, the described safe blood-taking needle for blood-glucose meter comprises:

Blood sampling cylindrical shell, the breach of the lateral wall of described blood sampling cylindrical shell is provided with the blood sampling slide block of slip, blood taking needle is provided with in described blood sampling cylindrical shell, the medial wall of described blood sampling cylindrical shell is also provided with upper limit slide block and lower limit slide block, and the end of described blood sampling slide block is between described upper limit slide block and described lower limit slide block;

Pressing cylindrical shell, the sidewall of described pressing cylindrical shell is provided with chute, is embedded with pressing slide block in described chute, and the surface that described pressing slide block is positioned at described pressing cylindrical shell arranges at least two flexible projections;

Described blood sampling cylindrical shell is connected with described pressing cylindrical shell is vertical.

2. the safe blood-taking needle for blood-glucose meter according to claim 1, is characterized in that, described blood sampling slide block, comprising:

Be positioned at the first blood sampling slide block on described blood sampling cylindrical shell lateral wall;

To take a blood sample the vertical blood sampling needle stand fixed of slide block with described first;

Be positioned at described blood sampling cylindrical shell, be fixed on the second blood sampling slide block on described blood sampling needle stand.

3. the safe blood-taking needle for blood-glucose meter according to claim 1, is characterized in that, described blood taking needle, comprising:

Be fixed on the spring bottom plate of described blood taking needle end;

Be fixed on the spring stop on described blood sampling cylindrical shell medial wall;

Spring between described spring bottom plate and described spring stop.

4. the safe blood-taking needle for blood-glucose meter according to claim 1, is characterized in that, described blood sampling cylindrical shell, comprising:

At the end that described blood sampling cylindrical shell is connected with described pressing cylindrical shell, be provided with open window;

At the end face that described blood sampling cylindrical shell is connected away from described pressing cylindrical shell, be provided with the top cover of circular arc.

5. the safe blood-taking needle for blood-glucose meter according to claim 1, is characterized in that, described pressing cylindrical shell, comprising:

In described pressing cylindrical shell one end away from described blood sampling cylindrical shell, be provided with flexible sleeve.