阅读说明：本技术 一种一次性简易自助无痛式采血装置 (Disposable simple self-service painless blood sampling device ) 是由 谢玉龙 于 2020-07-08 设计创作，主要内容包括：本发明属于血液采集设备技术领域,具体涉及一种一次性简易自助无痛式采血装置,包括外壳体,外壳体内部分为上腔体和下腔体,外壳体下侧底部设有环形硅胶圈,上腔体设有弹性橡胶片,上腔体中部滑动连接有按压块,按压块内部设有空腔,按压块下端底部设有第一金属针头,第一金属针头上端连接有导液接头,导液接头固定连接有塑料导液管,塑料导液管固定连接有第二金属针头,下腔体设有环形围挡,环形围挡位于弹性橡胶片与按压块之间,下腔体与环形围挡之间形成储血腔,储血腔内部做真空处理,按压块设有环形限位挡块,下腔体下侧中部设有弹簧,弹簧与环形限位挡块固定连接,下腔体下侧中部还设有第一橡胶封口。(The invention belongs to the technical field of blood collection equipment, and particularly relates to a disposable simple self-help painless blood sampling device which comprises an outer shell, wherein the inner part of the outer shell is divided into an upper cavity and a lower cavity, an annular silica gel ring is arranged at the bottom of the lower side of the outer shell, an elastic rubber sheet is arranged on the upper cavity, a pressing block is connected to the middle part of the upper cavity in a sliding manner, a cavity is arranged in the pressing block, a first metal needle head is arranged at the bottom of the lower end of the pressing block, a liquid guide joint is connected to the upper end of the first metal needle head, a plastic liquid guide pipe is fixedly connected to the liquid guide joint, a second metal needle head is fixedly connected to the plastic liquid guide pipe, an annular baffle is arranged on the lower cavity, the annular baffle is positioned between the elastic rubber sheet and the pressing block, a blood storage cavity is formed between the lower cavity and the annular baffle, the, the middle part of the lower side of the lower cavity body is also provided with a first rubber seal.)

1. The utility model provides a disposable simple and easy self-service painless formula blood sampling device which characterized in that: the device comprises an outer shell (1), wherein the outer shell (1) is cylindrical, the inside of the outer shell (1) is divided into an upper cavity (2) and a lower cavity (3) from top to bottom, and an annular silica gel ring (11) is arranged at the bottom of the lower side of the outer shell (1);

wherein the upper cavity (2) is provided with a plurality of elastic rubber sheets (21) distributed circumferentially, the middle part of the upper cavity (2) is connected with a pressing block (22) in a sliding way, the upper end of the pressing block (22) penetrates through the outer shell (1) and the lower end penetrates through the upper cavity (2) and extends into the lower cavity (3), a cavity (221) is arranged in the pressing block (22), a first metal needle (23) is arranged at the bottom of the lower end of the pressing block (22), the upper end of the first metal needle (23) penetrates through the lower side of the pressing block (22) and enters the cavity (221), the upper end of the first metal needle (23) is connected with a liquid guide joint (24), the liquid guide joint (24) is fixedly connected with a plurality of plastic liquid guide pipes (241) with the same number as the elastic rubber sheets (21), the plastic catheter (241) is fixedly connected with a plurality of second metal needle heads (242) matched with the elastic rubber sheet (21);

cavity (3) are equipped with the annular and enclose fender (31) down, the annular encloses fender (31) and is located between elastic rubber piece (21) and the pressing block (22), cavity (3) and annular enclose between fender (31) and form storage blood chamber (32) down, store up inside vacuum treatment of doing in blood chamber (32), pressing block (22) is equipped with annular limit stop (222), cavity (3) downside middle part is equipped with spring (33) that a plurality of circumferences distribute down, spring (33) and annular limit stop (222) fixed connection, cavity (3) downside middle part still is equipped with down and seals (34) with first metal needle (23) position assorted first rubber.

2. The disposable simple self-service painless blood sampling device of claim 1, characterized in that: elastic rubber piece (21) upper surface is equipped with and puts assorted toper micropore (211) with second metal syringe needle (242), toper micropore (211) bottom surface is up, and the summit sets up down.

3. The disposable simple self-service painless blood sampling device of any one of claim 2, wherein: the bottom surface of the conical micropore (211) is in any one shape of a circle and a regular polygon.

4. The disposable simple self-service painless blood sampling device of claim 1, characterized in that: go up cavity (2) downside and be equipped with second rubber and seal (25), go up cavity (2) upside and can dismantle and be connected with and seal (25) position assorted rubber buffer (26) with second rubber.

5. The disposable simple self-service painless blood sampling device of claim 1, characterized in that: the side of the outer shell (1) is provided with a plurality of transparent liquid level windows (12) distributed circumferentially, and one side of each transparent liquid level window (12) is provided with a dial gauge (13).

Technical Field

The invention belongs to the technical field of blood collection equipment, and particularly relates to a disposable simple self-service painless blood collection device.

Background

With the rapid development of scientific technology, the medical field follows the era, and when people seek medical advice, blood sampling inspection is a common inspection means, and the commonly adopted blood sampling methods include venous blood sampling and fingertip blood sampling. Venous blood collection is usually large in blood volume, and can be from 1 ml to hundreds of ml. Venous blood collection is used in many applications, such as biochemical detection, detection of free nucleic acids, and the like. Meanwhile, there are many kinds of devices for venous blood collection, which can be classified into blood collection tubes such as plasma and serum. Therefore, venous blood sampling is the most widely applied blood sampling mode in current blood detection. However, the venous blood sampling usually needs to be manually handled by professional medical staff, and the blood cannot be collected in a self-service manner, so that the blood sampling workload of the medical staff is large.

Disclosure of Invention

The purpose of the invention is: aims to provide a disposable simple self-service painless blood sampling device to solve the problems in the background technology.

In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows:

a disposable simple self-service painless blood sampling device comprises an outer shell, wherein the outer shell is cylindrical, the inside of the outer shell is divided into an upper cavity and a lower cavity from top to bottom, and the bottom of the lower side of the outer shell is provided with an annular silica gel ring;

the upper cavity is provided with a plurality of elastic rubber sheets distributed circumferentially, the middle part of the upper cavity is connected with a pressing block in a sliding manner, the upper end of the pressing block penetrates through the outer shell, the lower end of the pressing block penetrates through the upper cavity and extends into the lower cavity, a cavity is arranged in the pressing block, the bottom of the lower end of the pressing block is provided with a first metal needle, the upper end of the first metal needle penetrates through the lower side of the pressing block and enters the cavity, the upper end of the first metal needle is connected with a liquid guide joint, the liquid guide joint is fixedly connected with a plurality of plastic liquid guide pipes with the same number as the elastic rubber sheets, and the plastic liquid guide pipes are fixedly connected with a plurality of second metal;

the utility model discloses a blood storage device, including cavity, pressure piece, spring, annular limit stop, cavity downside middle part, cavity and annular are equipped with down the cavity and enclose the fender, the cavity is equipped with the annular and encloses the fender and is located elastic rubber piece and press between the briquetting down, cavity and annular enclose down and form between the fender and store up the blood chamber, store up the blood intracavity portion and do vacuum treatment, press the briquetting to be equipped with annular limit stop, cavity downside middle part is equipped with the spring that a plurality of circumferences distribute down, spring and annular limit stop fixed connection, cavity downside middle part still is equipped with down and seals with first metal syringe needle position.

By adopting the technical scheme, before blood is extracted, a user can tightly press and attach the annular silica gel ring to the surface of the skin on the arm or other trunk parts of the human body, when the annular silica gel ring is tightly pressed and attached to the skin, the nerve endings can be pressed to reduce pain, and meanwhile, the blood at the attached part can be collected, so that the blood collection is facilitated;

when blood is pumped, a user presses the pressing block downwards, the pressing block moves downwards, the annular limit stop moves downwards, the spring is compressed by overcoming the elasticity of the spring, on one hand, the first metal needle head of the lower cavity penetrates through the first rubber seal, so that the first metal needle head can puncture a blood vessel of a human body to collect blood, on the other hand, the second metal needle head of the upper cavity can penetrate through the elastic rubber sheet and enter a blood storage cavity formed between the lower cavity and the annular enclosure, negative pressure can be formed due to the vacuum state in the blood storage cavity, the blood of the human body is pumped out through the first metal needle head and flows to each plastic catheter through a liquid guide joint in the cavity, the finally collected blood flows through the second metal needle head to be collected into the blood storage cavity, and anticoagulant can be placed in the blood storage cavity to prevent the collected blood from coagulating;

after collection is finished, the pressing block is released, the spring rebounds and resets elastically to drive the annular limit stop block to ascend, so that the pressing block ascends, the first metal needle head retracts into the lower cavity again, injury caused by accidental touch of a human body is avoided, and meanwhile the second metal needle head ascends and resets to separate from the elastic rubber sheet and retract into the upper cavity;

the blood sampling device can be used for sampling blood for a human body only by pressing the device on a blood sampling part by a person and pressing the pressing block downwards, has a simple structure, is convenient to operate and use, can be used for collecting blood in a self-service mode, and reduces the workload of medical workers.

Further limiting, the upper surface of the elastic rubber sheet is provided with a conical micropore matched with the position of the second metal needle, the bottom surface of the conical micropore faces upwards, and the top point faces downwards. With the structure, when the second metal needle is not inserted into the elastic rubber sheet, the lower end of the conical micropore can be elastically plugged due to the elasticity of the elastic rubber sheet, so that air is prevented from entering the vacuum environment between the lower cavity and the annular enclosure; when the second metal syringe needle inserts the elastic rubber piece, the second metal syringe needle arouses to insert elastic rubber piece elasticity expansion, make toper micropore grow, thereby make the cavity under the insertion that the second metal syringe needle can be convenient, enclose to keep off through cavity and annular down between evacuation processing formation negative pressure extraction blood, after the extraction is accomplished, extract the second metal syringe needle, the elastic rubber piece kick-backs, the toper micropore gets back to initial condition, thereby make blood can not spill from the elastic rubber piece, make blood can be preserved well, and convenient carrying.

Further, the bottom surface of the tapered micro-hole is in any one shape of a circle and a regular polygon. The structure makes the structure of the conical micropore simple, and is convenient for processing and production.

Further inject, go up cavity downside and be equipped with second rubber and seal, go up cavity upside and can dismantle and be connected with and seal position assorted rubber buffer with second rubber. Such structure, when carrying out blood detection, through opening the rubber buffer, use the syringe needle to insert and pass the second rubber and seal, the blood that can be convenient will gather is taken out and is detected.

Further inject, the shell side is equipped with the transparent liquid level window of a plurality of circumference distributions, transparent liquid level window one side is equipped with the graduation apparatus. Such a configuration facilitates the user to view and quantitatively collect blood.

Compared with the prior art, the invention has the following advantages:

1. before blood collection, when the annular silica gel ring is tightly pressed and attached to the skin, the nerve endings can be pressed to reduce pain, and meanwhile, blood at the attached part can be collected, so that blood collection is facilitated, and the blood collection effect is improved;

2. when blood is drawn, a user only needs to press the pressing block downwards, so that the blood of a human body can be drawn out through the first metal needle head by negative pressure, flows to each plastic catheter through the liquid guide joint in the cavity, and finally flows through the second metal needle head to be collected into the blood storage cavity;

3. after collection is finished, the pressing block is released, the spring rebounds and resets elastically to drive the annular limit stop block to ascend, so that the pressing block ascends, the first metal needle head retracts into the lower cavity again, injury caused by accidental touch of a human body is avoided, and meanwhile the second metal needle head ascends and resets to separate from the elastic rubber sheet and retract into the upper cavity;

4. the conical micropores can be elastically plugged due to the elasticity of the elastic rubber sheets, so that air is prevented from entering a vacuum environment between the lower cavity and the annular enclosure; when the second metal syringe needle inserts the elastic rubber piece, the second metal syringe needle arouses to insert elastic rubber piece elasticity expansion, make toper micropore grow, thereby make the cavity under the insertion that the second metal syringe needle can be convenient, enclose to keep off through cavity and annular down between evacuation processing formation negative pressure extraction blood, after the extraction is accomplished, extract the second metal syringe needle, the elastic rubber piece kick-backs, the toper micropore gets back to initial condition, thereby make blood can not spill from the elastic rubber piece, make blood can be preserved well, and convenient carrying.

Drawings

The invention is further illustrated by the non-limiting examples given in the accompanying drawings;

FIG. 1 is a schematic structural view of an embodiment of a disposable simple self-service painless blood collection device of the present invention;

FIG. 2 is a schematic view of the internal cross-section of a disposable simple self-service painless lancing device according to an embodiment of the present invention;

FIG. 3 is a schematic cross-sectional view of an elastic rubber sheet of an embodiment of a disposable simple self-help painless blood sampling device of the present invention;

FIG. 4 is a schematic diagram illustrating an inserted state of a second metal needle and an elastic rubber sheet of the disposable simple self-help painless blood sampling device according to an embodiment of the present invention;

the main element symbols are as follows:

the blood transfusion device comprises an outer shell 1, an annular silica gel ring 11, a transparent liquid level window 12, a dial gauge 13, an upper cavity 2, an elastic rubber sheet 21, a tapered micropore 211, a pressing block 22, a cavity 221, an annular limit stop 222, a first metal needle 23, a liquid guide joint 24, a plastic liquid guide tube 241, a second metal needle 242, a second rubber seal 25, a rubber plug 26, a lower cavity 3, an annular enclosure 31, a blood storage cavity 32, a spring 33, a first rubber seal 34,

Detailed Description

In order that those skilled in the art can better understand the present invention, the following technical solutions are further described with reference to the accompanying drawings and examples.

As shown in fig. 1-4, the disposable simple self-service painless blood sampling device of the present invention comprises an outer housing 1, the outer housing 1 is cylindrical, the inner portion of the outer housing 1 is divided into an upper cavity 2 and a lower cavity 3 from top to bottom, the bottom of the lower side of the outer housing 1 is provided with an annular silicone ring 11, the upper cavity 2 is provided with a plurality of elastic rubber sheets 21 distributed circumferentially, the middle portion of the upper cavity 2 is slidably connected with a pressing block 22, the upper end of the pressing block 22 penetrates through the outer housing 1, the lower end of the pressing block penetrates through the upper cavity 2 and extends into the lower cavity 3, the inside of the pressing block 22 is provided with a cavity 221, the bottom of the lower end of the pressing block 22 is provided with a first metal needle 23, the upper end of the first metal needle 23 penetrates through the lower side of the pressing block 22 and enters into the cavity 221, the upper end of the first metal needle 23, plastics catheter 241 fixedly connected with a plurality of and elastic rubber piece 21 position assorted second metal syringe needle 242, lower cavity 3 is equipped with the annular and encloses fender 31, the annular encloses to keep off 31 and is located between elastic rubber piece 21 and the pressure piece 22, lower cavity 3 encloses to keep off 31 with the annular and forms between the fender 31 and store up blood chamber 32, it is inside to do vacuum treatment to store up blood chamber 32, it is equipped with annular limit stop 222 to press piece 22, lower cavity 3 downside middle part is equipped with the spring 33 that a plurality of circumferences distribute, spring 33 and annular limit stop 222 fixed connection, lower cavity 3 downside middle part still is equipped with and seals 34 with first metal syringe needle 23 position assorted first rubber.

By adopting the technical scheme of the invention, before blood is extracted, a user can tightly press and attach the annular silica gel ring 11 to the surface of the skin on the arm or other trunk parts of the human body, when the annular silica gel ring 11 is tightly pressed and attached to the skin, the nerve ending can be pressed to reduce pain, and meanwhile, the blood of the attached part can be collected, so that the blood collection is convenient;

when blood is drawn, a user presses the pressing block 22 downwards, the pressing block 22 moves downwards, the annular limit stop 222 moves downwards, the spring 33 is compressed against the elastic force of the spring 33, on one hand, the first metal needle 23 of the lower cavity 3 passes through the first rubber seal 34, so that the first metal needle 23 can puncture a blood vessel of a human body to collect blood, on the other hand, the second metal needle 242 of the upper cavity 2 can pass through the elastic rubber sheet 21 and enter the blood storage cavity 32 formed between the lower cavity 3 and the annular enclosure 31, because the blood storage cavity 32 is in a vacuum state, negative pressure can be formed, blood of the human body is pumped out from the first metal needle 23 and flows to each plastic catheter 241 through the liquid guide connector 24 in the cavity 221, finally, the collected blood flows through the second metal needle 242 to be collected into the blood storage cavity 32, and anticoagulant can be placed in the blood storage cavity 32, the collected blood is prevented from coagulating;

after collection is finished, the pressing block 22 is released, the spring 33 rebounds elastically and resets to drive the annular limit stop 222 to ascend, so that the pressing block 22 ascends, the first metal needle 23 retracts into the lower cavity 3 again to avoid injury caused by accidental touch of a human body, and meanwhile, the second metal needle 242 ascends and resets to separate from the elastic rubber sheet 21 to retract into the upper cavity 2;

the blood sampling device can be used for sampling blood for a human body only by pressing the device on a blood sampling part by a person and pressing the pressing block downwards, has a simple structure, is convenient to operate and use, can be used for collecting blood in a self-service mode, and reduces the workload of medical workers.

Specifically, the upper surface of the elastic rubber sheet 21 is provided with a conical micropore 211 matched with the position of the second metal needle 242, the bottom surface of the conical micropore 211 faces upwards, and the vertex faces downwards. With such a structure, when the second metal needle 242 is not inserted into the elastic rubber sheet 21, the tapered micro-holes 211 can elastically seal the lower ends of the tapered micro-holes 211 due to the elasticity of the elastic rubber sheet 21, so as to prevent air from entering the vacuum environment between the lower cavity 3 and the annular enclosure 31; when second metal needle 242 inserts elastic rubber piece 21, second metal needle 242 arouses to insert elastic rubber piece 21 elasticity expansion, make toper micropore 211 grow, thereby make cavity 3 under the insertion that second metal needle 242 can be convenient, enclose through cavity 3 and annular down between keeping off 31 evacuation processing and form negative pressure extraction blood, after the extraction is accomplished, extract second metal needle 242, elastic rubber piece 21 kick-backs, toper micropore 211 gets back to initial state, thereby make blood can not leak from elastic rubber piece 21, make blood can obtain preserving well, and convenient to carry. In fact, other configurations may be used depending on the situation, so that blood does not leak from the elastic rubber sheet 21 after blood drawing, and blood can be stored well and carried easily.

Specifically, the bottom surface of the tapered micro-hole 211 has any one of a circular shape and a regular polygonal shape. Such a structure makes the tapered micro-holes 211 simple in structure and convenient to process and produce. In fact, other structures can be considered according to the situation, so that the tapered micro-holes 211 have simple structures and are convenient to process and produce.

Specifically, go up cavity 2 downside and be equipped with the second rubber and seal 25, go up cavity 2 upside and can dismantle and be connected with and seal 25 position assorted rubber buffer 26 with the second rubber. With the structure, when blood is detected, the rubber plug 26 is opened, and the needle is inserted through the second rubber seal 25, so that the collected blood can be conveniently drawn out for detection. In fact, other structures can be considered according to the situation, and the collected blood can be conveniently drawn out for detection.

Specifically, a plurality of transparent liquid level windows 12 distributed circumferentially are arranged on the side surface of the outer shell 1, and a dial gauge 13 is arranged on one side of each transparent liquid level window 12. Such a configuration facilitates the user to view and quantitatively collect blood. In fact, other configurations are contemplated as appropriate to facilitate viewing and quantitative blood collection by the user.

The foregoing embodiments are merely illustrative of the principles of the present invention and its efficacy, and are not to be construed as limiting the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.