Elastic sheet type disposable anti-acupuncture blood taking needle

Abstract

The utility model relates to the field of medical instruments, in particular to an elastic sheet type disposable puncture-proof blood taking needle which comprises a blood taking needle and a hose connected with the blood taking needle, and further comprises a puncture-proof connecting seat, the puncture-proof connecting seat is provided with a cavity, one end of the cavity is provided with a first through hole, the first through hole is used for the blood taking needle to penetrate through, and the other end of the cavity is provided with a second through hole. An L-shaped elastic piece is arranged on the side, close to the blood taking needle, of a cavity of the puncture-proof connecting base, one end of the L-shaped elastic piece abuts against a protruding block located on one side of the top of the cavity, the other end of the L-shaped elastic piece abuts against the top of the cavity, a through groove is formed in the middle of the L-shaped elastic piece, the blood taking needle can penetrate through the through groove, and the blood taking needle can support the elastic piece. A gap is reserved between the bottom of the elastic sheet and the bottom of the cavity. The blood taking device has the advantages that a used blood taking needle can be contained in the cavity, the needle head is prevented from being exposed, and the risk that an operator is punctured by the needle head accidentally is reduced; and the used needle head is stably limited in the cavity, so that the risk that the needle head pierces out again is avoided.

Description

Technical Field

[0001] The utility model relates to the field of medical instruments, in particular to a shrapnel-type disposable anti-needle puncture blood collection needle. Background Art

[0002] The disposable blood collection needle is a convenient and safe medical product designed for quick and accurate blood sample collection. It adopts the principle of single use to ensure sterility and hygiene, effectively reducing the risk of cross infection. Its tip design can reduce the pain of patients while providing stable blood collection pressure control, making it an indispensable tool in medical diagnosis.

[0003] There are technical problems with existing disposable blood collection needles. When blood is collected or disposed of as waste after collection, the exposed needle is prone to puncture the staff, increasing the risk of infection from contaminated blood. There is an urgent need to design a blood collection needle that can be discarded once after use and prevent needle punctures. Utility Model Content

[0004] The utility model aims to overcome the deficiencies of the prior art and provide a shrapnel-type disposable anti-needle puncture blood collection needle, which is used to make the blood collection needle needle retract into the storage cavity after blood collection is completed to prevent the needle from being exposed and stabbing the staff.

[0005] In order to achieve the above-mentioned purpose, a shrapnel-type disposable anti-puncture blood collection needle is designed, comprising a blood collection needle and a hose connected to the blood collection needle, and also comprising an anti-puncture connecting seat, the anti-puncture connecting seat is provided with a cavity, and a first through hole is provided at one end of the cavity, the first through hole is used to pass the blood collection needle, the anti-puncture connecting seat cavity is provided with a shrapnel on the side close to the blood collection needle, the shrapnel is L-shaped, one end of the L-shaped shrapnel abuts against a protrusion located on one side of the top of the cavity, and the other end of the L-shaped shrapnel abuts against the top of the cavity, a through groove is provided in the middle of the L-shaped shrapnel, the through groove is used to pass the blood collection needle, and the blood collection needle can support the shrapnel so that a gap is left between the bottom of the shrapnel and the bottom of the cavity.

[0006] Preferably, the blood collection needle of the utility model is connected to the hose via a connector, the connector is located in the cavity of the puncture-proof connector, a guide block is provided on one side of the connector, the guide block cooperates with the guide groove on one side of the puncture-proof connector to enable the connector to move back and forth in the puncture-proof connector.

[0007] Preferably, the width of the L-shaped spring piece through groove of the utility model matches the blood collection needle and provides sufficient friction to limit the force applied by the blood collection needle during operation.

[0008] Preferably, after the blood collection needle of the utility model is separated from the spring piece, the spring piece falls to block the first through hole.

[0009] Preferably, the L-shaped spring piece of the utility model has a straight edge on one side and a beveled edge on the other side, the straight edge cooperates with the side of the stab-proof connecting seat cavity close to the first through hole, the top of the straight edge abuts against the top of the stab-proof connecting seat cavity and generates a rebound force, the through groove end of the straight edge of the L-shaped spring piece is at the same height as the first through hole, and the blood collection needle passes through the through groove end and the first through hole.

[0010] Preferably, the maximum stroke of the guide groove of the utility model can enable the needle end of the blood collection needle to move between the straight edge and the oblique edge of the L-shaped spring piece.

[0011] Compared with the prior art, the utility model has the following advantages:

[0012] The utility model adopts the design of the puncture-proof connecting seat cavity, so that the used blood collection needle can be stored in the cavity, which prevents the needle from being exposed and reduces the risk of accidental puncture of the operator by the needle; and the design of the spring piece ensures that the needle stored in the cavity is stably limited in the cavity, without the risk of being punctured again. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 , is a three-dimensional diagram of the utility model;

[0014] Figure 2 , is a top sectional view of the utility model;

[0015] Figure 3 , is a three-dimensional diagram of the utility model;

[0016] In the figure: 1 puncture-proof connector; 2 blood collection needle; 3 cavity; 3.1 convex block; 4 first through hole; 5 spring piece; 5.1 through groove; 6 connector; 6.1 guide block; 7 hose; 8 guide groove. DETAILED DESCRIPTION

[0017] In order to make the purpose, principle and structure of the utility model clearer, it is further described below in conjunction with the drawings and specific embodiments.

[0018] The utility model provides a shrapnel-type disposable anti-puncture blood collection needle, comprising a blood collection needle 2 and a hose 7 connected to the blood collection needle, and also comprising an anti-puncture connecting seat 1, the anti-puncture connecting seat is provided with a cavity 3, and one end of the cavity 3 is provided with a first through hole 4, the first through hole 4 is used to pass the blood collection needle 2, the anti-puncture connecting seat cavity 3 is provided with a shrapnel 5 on the side close to the blood collection needle 2, the shrapnel 5 is L-shaped, one end of the L-shaped shrapnel abuts against a convex block 3.1 located on one side of the top of the cavity, and the other end of the L-shaped shrapnel abuts against the top of the cavity 3, a through groove 5.1 is opened in the middle of the L-shaped shrapnel 5, the through groove 5.1 is used to pass the blood collection needle 2, the blood collection needle 2 can support the shrapnel 5, so that a gap is left between the bottom of the shrapnel 5 and the bottom of the cavity 3.

[0019] The blood collection needle 2 is connected to the hose 7 through a connector 6. The connector 6 is located in the puncture-proof connector cavity 3. A guide block 6.1 is provided on one side of the connector 6. The guide block 6.1 cooperates with the guide groove 8 on one side of the puncture-proof connector 1 so that the connector 6 can move back and forth in the puncture-proof connector 1. The width of the L-shaped spring clip slot 5.1 cooperates with the blood collection needle 2 and provides sufficient friction to limit the force of the blood collection needle 2 when working. After the blood collection needle 2 is separated from the spring clip 5, the spring clip 5 falls to block the first through hole 4. One side of the L-shaped spring clip 5 is a straight edge and the other side is a bevel edge. The straight edge cooperates with the side of the puncture-proof connector cavity 3 close to the first through hole 4. The top of the straight edge abuts against the top of the puncture-proof connector cavity 3 and generates a rebound force. The end of the slot 5.1 of the straight edge of the L-shaped spring clip 5 is at the same height as the first through hole 4. The blood collection needle 2 passes through the end of the slot 5.1 and the first through hole 4. The maximum stroke of the guide groove 8 can move the needle end of the blood collection needle 2 to between the straight side and the oblique side of the L-shaped spring piece 5.

[0020] How to operate:

[0021] When blood sampling is required, the puncture-proof connector 1 is held in hand, the thumb is pressed against the guide block 6.1, and the patient's skin is pierced. At this time, the reaction force formed between the blood collection needle 2 and the patient's skin will be transmitted to the blood collection needle 2, the through groove 5.1 of the spring 5 clamps the blood collection needle 2, and the thumb presses against the guide block 6.1. The guide block 6.1 transmits the thumb's force to the connector 6 behind the blood collection needle 2. The connector 6 and the spring 5 jointly limit the blood collection needle 2, prevent the blood collection needle 2 from retreating, and ensure the normal blood collection work.

[0022] When the blood collection needle needs to be scrapped after blood collection, the guide block 6.1 of the connector is pulled backward, and the guide block 6.1 can move in the guide groove 8. When the guide block 6.1 moves to the end of the guide groove 8 away from the needle of the blood collection needle 2, the end of the needle of the blood collection needle 2 will retreat to the cavity between the straight side and the oblique side of the L-shaped spring clip 5, and at this time, the end of the needle will be separated from the through groove 5.1 on the straight side of the spring clip 5, and the straight side of the spring clip 5 loses the friction between the end of the needle, resulting in elastic deformation, displacement and falling. The displacement of the straight side of the spring clip 5 makes the part of the straight side without the through groove 5.1 form a blockage to the first through hole 4. At this time, no matter how the blood collection needle in the puncture-proof connector 1 moves, the end of the needle will be blocked by the straight side of the spring clip 5 and cannot pass through the first through hole 4, and the needle will not be exposed to the outside, so that the needle can be safely stored after being scrapped.

[0023] The above is only a specific implementation method of this utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field within the technical scope disclosed by the utility model, according to the technical solution and new concept of the utility model, shall be covered by the protection scope of the utility model.

Claims

1. A shrapnel-type disposable anti-needle puncture blood collection needle, comprising a blood collection needle and a hose connected to the blood collection needle, characterized in that Also includes stab-proof connector, The puncture-proof connecting seat is provided with a cavity, and a first through hole is provided at one end of the cavity, and the first through hole is used to pass the blood collection needle. The puncture-proof connecting seat cavity is provided with a spring sheet on the side close to the blood collection needle. The spring sheet is L-shaped, and one end of the L-shaped spring sheet abuts against a protrusion located on one side of the top of the cavity, and the other end of the L-shaped spring sheet abuts against the top of the cavity. A through groove is provided in the middle of the L-shaped spring sheet, and the through groove is used to pass the blood collection needle. The blood collection needle can support the spring sheet so that a gap is left between the bottom of the spring sheet and the bottom of the cavity.

2. A shrapnel-type disposable anti-needlestick blood collection needle as claimed in claim 1, characterized in that The blood collection needle is connected to the hose through a connector, and the connector is located in the cavity of the puncture-proof connector. A guide block is provided on one side of the connector, and the guide block cooperates with a guide groove on one side of the puncture-proof connector to enable the connector to move back and forth on the puncture-proof connector.

3. A shrapnel-type disposable anti-needlestick blood collection needle as claimed in claim 1, characterized in that The width of the L-shaped spring piece slot matches the blood collection needle and provides sufficient friction to limit the force applied when the blood collection needle is working.

4. A shrapnel-type disposable anti-needlestick blood collection needle as claimed in claim 1, characterized in that After the blood collection needle is separated from the spring sheet, the spring sheet falls to block the first through hole.

5. A shrapnel-type disposable anti-needlestick blood collection needle as claimed in claim 2, characterized in that One side of the L-shaped spring piece is a straight edge, and the other side is a beveled edge. The straight edge cooperates with the side of the stab-proof connecting seat cavity close to the first through hole. The top of the straight edge abuts against the top of the stab-proof connecting seat cavity and generates a rebound force. The through groove end of the straight edge of the L-shaped spring piece is at the same height as the first through hole, and the blood collection needle passes through the through groove end and the first through hole.

6. A shrapnel-type disposable anti-needlestick blood collection needle as claimed in claim 5, characterized in that The maximum stroke of the guide groove can move the needle end of the blood collection needle to between the straight edge and the oblique edge of the L-shaped spring piece.

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