Blood sampling pricking needle

Abstract

The utility model discloses a blood sampling needle which comprises a handle and a protective cover, the protective cover is movably inserted into the surface of the bottom of the handle, a containing groove is formed in an inner cavity of the handle, a connecting base is movably arranged in an inner cavity of the containing groove, a blood sampling needle is fixedly connected to the bottom of the connecting base, and a tension spring is fixedly connected to the surface of the top of the connecting base. The blood sampling needle has the advantages that when the blood sampling needle is used, the limiting handle is pushed downwards, the blood sampling needle can extend out of the through hole, and therefore the skin can be punctured through the blood sampling needle, the blood sampling needle can be used for sampling the blood, and the blood sampling needle can be used for sampling the blood. At the moment, the tension spring is stretched, after needling is completed, the limiting handle is pushed, and after the limiting handle is separated from the bottom limiting groove, the blood taking needle can be driven to automatically retract into the containing groove through retraction of the tension spring, the situation that the blood taking needle punctures an operator during containing can be avoided, and protection on the operator can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical instruments, and in particular relates to a blood collection needle. Background Art

[0002] A blood collection needle used for collecting blood samples during medical examinations consists of a needle and a needle rod. The needle is arranged at the head of the needle rod, and a sheath is slidably connected to the needle rod. The sliding sheath can play a protective role to avoid needle punctures.

[0003] The existing blood collection needle needs to manually insert the sheath into the handle after use. When medical staff are working, there are many blood collection personnel. After each blood collection, the sheath and the handle need to be inserted, which wastes some time and increases the waiting time of patients. At the same time, medical staff often forget to insert the sheath back when they are busy, and they are easily pricked by the exposed needle. In order to solve the above problems, the present application proposes a blood collection needle. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings existing in the prior art. When in use, the limit handle is pushed down to make the blood collection needle extend out from the through hole, so that the skin can be punctured through the blood collection needle. At this time, the tension spring is stretched. After the puncture is completed, the limit handle is pushed. After the limit handle is separated from the bottom limit groove, the tension spring contracts to drive the blood collection needle to automatically retract into the storage groove, so that the blood collection needle can be prevented from puncturing the operator when storing, and the protection of the operator can be improved. A blood collection needle is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A blood collection needle is designed, comprising a handle and a protective cover, wherein the protective cover is movably plugged into the bottom surface of the handle, a storage groove is provided in the inner cavity of the handle, a connecting seat is movably provided in the inner cavity of the storage groove, a blood collection needle is fixedly connected to the bottom of the connecting seat, a tension spring is fixedly connected to the top surface of the connecting seat, and the top of the tension spring is connected to the top of the inner cavity of the storage groove;

[0007] A movable groove is formed through the handle surface at a position corresponding to the storage groove, a bottom limiting groove is formed at the bottom of the movable groove, a limiting handle is fixedly connected to the surface of the connecting seat, and the limiting handle is inserted into the inner cavity of the movable groove.

[0008] Preferably, the connecting seat slides vertically up and down in the receiving groove.

[0009] Preferably, a top limiting groove is provided at the top of the movable groove.

[0010] Preferably, the limit handle is located at the top limit groove and the bottom limit groove and can rotate, and the limit handle is respectively engaged with the top limit groove and the bottom limit groove after rotation.

[0011] Preferably, a through hole is formed through the bottom of the inner cavity of the storage groove, and a sealing gasket is installed in the inner cavity of the through hole.

[0012] Preferably, an anti-slip groove is provided on the outer wall surface of the handle.

[0013] The utility model provides a blood collection needle, which has the following beneficial effects:

[0014] 1. In the present invention, when in use, the limit handle is pushed down, so that the blood collection needle can be extended from the through hole, so that the skin can be punctured through the blood collection needle. At this time, the tension spring is stretched. After the puncture is completed, the limit handle is pushed. After the limit handle is separated from the bottom limit groove, the tension spring contracts to drive the blood collection needle to automatically retract into the storage groove, which can prevent the blood collection needle from stabbing the operator during storage, thereby improving the protection of the operator.

[0015] 2. In the present invention, the through hole is sealed by a sealing gasket, so that the inner cavity of the storage groove can be sealed. The blood collection needle can be stored in a sterile environment to increase the storage time of the blood collection needle. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a blood collection needle proposed by the utility model;

[0017] Figure 2 This is a schematic diagram of the blood collection needle extension structure of a blood collection needle proposed by the utility model;

[0018] Figure 3 This is a schematic cross-sectional structure diagram of a blood collection needle proposed by the utility model;

[0019] Figure 4 The utility model is a schematic diagram of a blood collection needle connection structure of a blood collection needle.

[0020] In the figure: 1. handle; 2. protective cover; 3. blood collection needle; 4. storage slot; 5. tension spring; 6. connecting seat; 7. through hole; 8. sealing gasket; 9. moving slot; 10. top limit slot; 11. limit handle; 12. anti-slip slot; 13. bottom limit slot. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] Reference Figure 1-4A blood collection needle comprises a handle 1 and a protective cover 2, wherein the protective cover 2 is movably plugged into the bottom surface of the handle 1, a receiving groove 4 is provided in the inner cavity of the handle 1, a connecting seat 6 is movably provided in the inner cavity of the receiving groove 4, a blood collection needle 3 is fixedly connected to the bottom of the connecting seat 6, a tension spring 5 is fixedly connected to the top surface of the connecting seat 6, and the top of the tension spring 5 is connected to the top of the inner cavity of the receiving groove 4;

[0023] A movable groove 9 is provided through the surface of the handle 1 at a position corresponding to the position of the storage groove 4, a bottom limit groove 13 is provided at the bottom of the movable groove 9, a limit handle 11 is fixedly connected to the surface of the connecting seat 6, the limit handle 11 is inserted in the inner cavity of the movable groove 9, the connecting seat 6 slides vertically up and down in the storage groove 4, a top limit groove 10 is provided on the top of the movable groove 9, the limit handle 11 is located at the top limit groove 10 and the bottom limit groove 13 and can be rotated, and the limit handle 11 is respectively engaged with the top limit groove 10 and the bottom limit groove 13 after rotation.

[0024] It should be noted that when in use, the limit handle 11 is swung to separate the limit handle 11 from the top limit groove 10, the limit handle 11 overlaps the movable groove 9, and the limit handle 11 is pushed down. The limit handle 11 pushes the blood collection needle 3 downward through the connecting seat 6, and the blood collection needle 3 pierces the sealing gasket 8, so that the blood collection needle 3 can be extended from the through hole 7. At this time, the tension spring 5 is stretched, and the limit handle 11 is swung again to make the limit handle 11 engage with the bottom limit groove 13, so that the blood collection needle 3 can be limited, so that the skin can be punctured by the blood collection needle 3. After the acupuncture is completed, the limit handle 11 is pushed. After the limit handle 11 is separated from the bottom limit groove 13, the blood collection needle 3 can be automatically retracted into the storage groove 4 through the contraction of the tension spring 5, which can prevent the blood collection needle 3 from stabbing the operator during storage, thereby improving the protection of the operator.

[0025] like Figure 3 As shown, a through hole 7 is formed through the bottom of the inner cavity of the storage groove 4 , and a sealing gasket 8 is installed in the inner cavity of the through hole 7 .

[0026] It should be noted that the through hole 7 is sealed by the sealing gasket 8, so that the inner cavity of the storage groove 4 is in a sealed state. The blood collection needle 3 is stored in a sterile environment to increase the storage time of the blood collection needle 3.

[0027] like Figure 1 As shown, an anti-slip groove 12 is arranged on the outer wall surface of the handle 1 .

[0028] It should be noted that the anti-slip groove 12 can increase the anti-slip property of the surface of the handle 1 .

[0029] Working principle: When in use, the protective cover 2 is inserted into the bottom of the handle 1, and the protective cover 2 can protect the sealing gasket 8. The through hole 7 is closed by the sealing gasket 8, so that the inner cavity of the storage groove 4 is in a sealed state. The blood collection needle 3 is stored in a sterile environment to increase the storage time of the blood collection needle 3. When in use, the limit handle 11 is swung to separate the limit handle 11 from the top limit groove 10, and the limit handle 11 coincides with the movable groove 9. The limit handle 11 is pushed down, and the limit handle 11 pushes the blood collection needle 3 downward through the connecting seat 6, and the blood collection needle 3 will be sealed. The sealing pad 8 is punctured, and the blood collection needle 3 can be extended from the through hole 7. At this time, the tension spring 5 is stretched, and the limit handle 11 is swung again to make the limit handle 11 engage with the bottom limit groove 13, so that the blood collection needle 3 can be limited, so that the skin can be punctured by the blood collection needle 3. After the acupuncture is completed, the limit handle 11 is pushed. After the limit handle 11 is separated from the bottom limit groove 13, the tension spring 5 contracts to drive the blood collection needle 3 to automatically retract into the storage groove 4, which can prevent the blood collection needle 3 from stabbing the operator during storage, thereby improving the protection of the operator.

[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A blood collection needle, comprising a handle (1) and a protective cover (2), wherein the protective cover (2) is movably plugged into the bottom surface of the handle (1), characterized in that: The handle (1) has an inner cavity provided with a storage groove (4), the inner cavity of the storage groove (4) is movably provided with a connecting seat (6), the bottom of the connecting seat (6) is fixedly connected with a blood collection needle (3), the top surface of the connecting seat (6) is fixedly connected with a tension spring (5), and the top of the tension spring (5) is connected to the top of the inner cavity of the storage groove (4); A movable groove (9) is provided through the surface of the handle (1) at a position corresponding to the storage groove (4), a bottom limit groove (13) is provided at the bottom of the movable groove (9), a limit handle (11) is fixedly connected to the surface of the connecting seat (6), and the limit handle (11) is inserted into the inner cavity of the movable groove (9).

2. A blood collection needle according to claim 1, characterized in that: The connecting seat (6) slides vertically up and down in the receiving groove (4).

3. A blood collection needle according to claim 1, characterized in that: A top limiting groove (10) is provided at the top of the movable groove (9).

4. A blood collection needle according to claim 1, characterized in that: The limit handle (11) is located at the top limit groove (10) and the bottom limit groove (13) and can rotate. After the limit handle (11) rotates, it is respectively engaged with the top limit groove (10) and the bottom limit groove (13).

5. The blood collection needle according to claim 1, characterized in that: A through hole (7) is provided through the bottom of the inner cavity of the storage groove (4), and a sealing gasket (8) is installed in the inner cavity of the through hole (7).

6. A blood collection needle according to claim 1, characterized in that: The outer wall surface of the handle (1) is provided with an anti-slip groove (12).

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