Safety blood taking needle

Abstract

The utility model provides a safety blood taking needle, which relates to the technical field of medical tools and comprises a needle head, a needle seat sleeve and a needle head protective cover. The needle seat sleeve sleeves the needle, the needle protective cover is hinged to the outer wall of the needle seat sleeve, a first clamping position and a second clamping position are arranged on the needle seat sleeve, an opening is formed in one end, connected with the needle seat sleeve, of the needle protective cover, and when the opening is matched with the first clamping position, the needle seat sleeve and the needle protective cover are locked in a first state, and when the opening is matched with the second clamping position, the needle protective cover is locked in a second state. And the needle seat sleeve and the needle head protective cover are locked in the second state. The integral stability of the blood sampling device can be improved, the blood sampling device is convenient to use and transport, the manufacturing cost is saved, and energy conservation and environmental protection are facilitated.

Description

Technical Field

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

[0002] The inventor has found that although the blood collection needles on the market currently have needle shields, the needle shields are generally not fixed in the initial state, that is, before use, which makes the whole inconvenient during transportation and use. At the same time, the existing needle shields also have problems such as not being able to be clamped tightly and being easy to break, having unreasonable designs, using more raw materials and having high costs, which are not conducive to current energy conservation and environmental protection. Utility Model Content

[0003] The utility model aims to provide a safe blood collection needle, which can improve the overall stability of the blood collection device, facilitate use and transportation, save manufacturing costs, and is beneficial to energy conservation and environmental protection.

[0004] The embodiment of the utility model is achieved as follows:

[0005] In the first aspect, the utility model provides a safety blood collection needle, comprising a needle, a needle hub cover and a needle shield; the needle hub cover is arranged on the needle, the needle shield is hinged on the outer wall of the needle hub cover, the needle hub cover is provided with a first clamping position and a second clamping position, and an opening is provided on the end of the needle shield connected to the needle hub cover, when the opening cooperates with the first clamping position, the needle hub cover and the needle shield are locked in the first state, and when the opening cooperates with the second clamping position, the needle hub cover and the needle shield are locked in the second state.

[0006] In an optional embodiment, the needle hub sleeve and the needle shield are connected via a flexible sheet.

[0007] In an optional embodiment, an anti-slip protrusion is provided on one end of the needle shield close to the needle hub sleeve.

[0008] In an optional embodiment, a blocking piece for clamping the needle is provided inside the needle protection cover.

[0009] In an optional embodiment, the blocking piece is L-shaped and is made of plastic.

[0010] In an optional embodiment, the safety blood collection needle further comprises a needle seat, a needle hole is arranged in the middle of the needle seat, the needle head is inserted into the needle hole, and the needle seat sleeve is sleeved on the needle seat.

[0011] In an optional embodiment, the safety blood collection needle also includes an upper needle tube and a lower needle tube, the upper needle tube covers the upper half of the needle and is connected to the needle seat, and the lower needle tube covers the lower half of the needle and is connected to the needle seat.

[0012] In an optional embodiment, a circle of grooves is provided at the upper end of the needle seat, and an insertion section is provided at the bottom of the upper needle tube, and the insertion section is inserted into the groove.

[0013] In an optional embodiment, the safety blood collection needle also includes a protective cover, a snap key is provided at the bottom of the protective cover, the inner surface of the protective cover is provided at a connecting groove, the protective cover holds the lower half of the needle therein, and the connection between the protective cover and the needle seat is achieved through the matching connection of the snap key and the connecting groove.

[0014] In an optional embodiment, the needle hub sleeve and the needle protection cover are integrally formed and made of plastic.

[0015] The beneficial effects of the embodiments of the utility model are:

[0016] The utility model provides a safety blood collection needle, comprising a needle, a needle seat sleeve and a needle shield; the needle seat sleeve is arranged on the needle, the needle shield is hinged on the outer wall of the needle seat sleeve, the needle seat sleeve is provided with a first clamping position and a second clamping position, an opening is provided on one end of the needle shield connected to the needle seat sleeve, when the opening cooperates with the first clamping position, the needle seat sleeve and the needle shield are locked in the first state, when the opening cooperates with the second clamping position, the needle seat sleeve and the needle shield are locked in the second state. The first state in the utility model refers to the state of the safety blood collection needle before use, and the second state refers to the state of the safety blood collection needle after use. Therefore, the utility model can fix the needle shield by setting the first clamping position to cooperate with the opening, so that the safety blood collection needle is more convenient in transportation and use. In addition, the needle can be retracted into the needle shield by cooperating with the second clamping position and the opening, reducing damage to the operator and avoiding cross infection. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 A schematic diagram of the structure of a safety blood collection needle provided by an embodiment of the utility model;

[0019] Figure 2A schematic diagram of the partial structure of a safety blood collection needle provided by an embodiment of the utility model;

[0020] Figure 3 for Figure 2 Partial cross-section.

[0021] icon:

[0022] 10-needle; 20-needle seat sleeve; 21-first clamping position; 22-second clamping position; 23-groove; 30-needle protection cover; 40-flexible sheet; 50-anti-slip protrusion; 60-blocking sheet; 70-needle seat; 71-buckle key; 80-upper needle tube; 90-lower needle tube; 100-protective cover; 101-connecting groove. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0026] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0027] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0028] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] like Figure 1-Figure 3 As shown, this embodiment provides a safe blood collection needle, including a needle 10, a needle hub cover 20 and a needle shield 30; the needle hub cover 20 is sleeved on the needle 10, and the needle shield 30 is hinged on the outer wall of the needle hub cover 20, and the needle hub cover 20 is provided with a first clamping position 21 and a second clamping position 22, and an opening is provided on one end of the needle shield 30 connected to the needle hub cover 20, when the opening cooperates with the first clamping position 21, the needle hub cover 20 and the needle shield 30 are locked in the first state, and when the opening cooperates with the second clamping position 22, the needle hub cover 20 and the needle shield 30 are locked in the second state.

[0030] Specifically, the first state in this embodiment refers to the state of the safety blood collection needle before use, and the second state refers to the state of the safety blood collection needle after use.

[0031] In detail, in the present embodiment, a convex piece is provided on the outer wall of the needle hub sleeve 20, the upper half of the convex piece is the first clamping position 21, the lower half is the second clamping position 22, and the widest lateral distance of the convex piece is smaller than the diameter of the needle hub sleeve 20; an opening is provided on one end of the needle shield 30 connected to the needle hub sleeve 20, and the lateral distance of the opening is slightly smaller than the lateral dimension of the first clamping position 21. Since the needle shield 30 is made of plastic or other flexible materials and has a certain ability to restore deformation, the needle shield 30 is rotated so that the opening is close to the needle hub sleeve 20. When the opening reaches the diameter position of the needle hub sleeve 20, the deformation gradually increases and reaches the maximum deformation at the diameter of the needle hub sleeve 20. At this time, the needle shield 30 continues to be rotated, and the opening passes over the diameter of the needle hub sleeve 20 until it is When the safety blood collection needle is used, the needle guard 30 is rotated in the opposite direction to move it away from the needle seat sleeve 20. Under the action of external force, the opening is separated from the first clamping position 21, and the safety blood collection needle is in an active state. When the safety blood collection needle is used up, in order to avoid the risk of accidental injury of medical staff and other personnel by the needle 10, the safety blood collection needle is rotated forward to move the opening close to the needle seat sleeve 20. When the opening exceeds the diameter of the needle seat sleeve 20 and reaches the first clamping position 21, force is applied again to make the opening exceed the second clamping position 22. At this time, the needle 10 just falls into the needle guard 30.

[0032] It can be understood that in this embodiment, the needle shield 30 can be fixed by setting the first clamping position 21 to cooperate with the opening, so that the safety blood collection needle is more convenient during transportation and use. In addition, the needle 10 can be retracted into the needle shield 30 by cooperating with the second clamping position 22 and the opening, thereby reducing harm to the operator and avoiding cross infection.

[0033] In a preferred embodiment, the needle hub sleeve 20 and the needle shield 30 are connected by a flexible sheet 40. It is understandable that the material of the flexible sheet 40 can be the same as that of the needle shield 30, both of which are plastic materials, so the flexible sheet 40 can be bent multiple times without damage.

[0034] In a preferred embodiment, an anti-skid protrusion 50 is provided on one end of the needle shield 30 close to the needle hub sleeve 20. It can be understood that the anti-skid protrusion 50 is to prevent the finger from slipping on the needle shield 30 when using the safety blood collection needle.

[0035] Furthermore, this embodiment does not limit the anti-slip measure on the needle seat sleeve 20 to the anti-slip protrusion 50, and it can also be anti-slip stripes, etc. The specific method is not limited in this embodiment. All structures with the same effect as this embodiment are within the protection scope of this embodiment.

[0036] In a preferred embodiment, a baffle 60 is provided inside the needle shield 30 for clamping the needle 10. It is understandable that after the safety blood collection needle is used, in order to prevent the needle 10 from accidentally injuring the operator, the needle 10 generally needs to be stored in the needle shield 30. In order to further improve safety, a baffle 60 is provided inside the needle shield 30 for clamping the needle 10 in the needle shield 30.

[0037] Further, the shape of the baffle 60 is L-shaped and made of plastic material. In detail, the angle of the baffle 60 is less than 90 degrees, so that the needle 10 is not easy to slide out.

[0038] In a preferred embodiment, the safety blood collection needle further comprises a needle seat 70, a needle hole is arranged in the middle of the needle seat 70, the needle 10 is inserted into the needle hole, and the needle seat cover 20 is sleeved on the needle seat 70. In detail, the needle 10 is fixed in the needle seat 70, and the needle seat 70 is fixed in the needle seat cover 20. In addition, in order to facilitate manufacturing, the needle seat 70 and the needle seat cover 20 are manufactured by an integrated molding process in this embodiment.

[0039] The safety blood collection needle provided in this embodiment further includes an upper needle tube 80 and a lower needle tube 90. The upper needle tube 80 covers the upper half of the needle 10 and is connected to the needle seat 70, and the lower needle tube 90 covers the lower half of the needle 10 and is connected to the needle seat 70. It can be understood that before the needle 10 is used, the upper needle tube 80 and the lower needle tube 90 need to be put on. The upper needle tube 80 and the lower needle tube 90 are mainly provided to prevent the needle 10 from being contaminated before use, which affects the blood collection and the health of the person whose blood is collected.

[0040] In a preferred embodiment, a circle of grooves 23 are provided at the upper end of the needle seat 70, and an insertion section is provided at the bottom of the upper needle tube 80, and the insertion section is inserted into the groove 23. In detail, the bottom of the upper needle tube 80 is bent inward to form a step shape, and the bent portion is the insertion section. After the insertion section is inserted into the groove 23, the outer surface of the upper needle tube 80 and the outer surface of the needle seat 70 are smoothly connected.

[0041] In a preferred embodiment, the safety blood collection needle also includes a protective cover 100, a snap key 71 is provided at the bottom of the protective cover 100, the inner surface of the protective cover 100 is provided in a connecting groove 101, the protective cover 100 inserts the lower half of the needle 10 therein, and the connection between the protective cover 100 and the needle seat 70 is realized by the matching connection of the snap key 71 and the connecting groove 101.

[0042] It can be understood that the function of the protective cover 100 is to prevent the needle 10 from being contaminated by the outside world and affecting the quality of blood collection. In addition, it can also protect the operator. After using the safety blood collection needle, the protective cover 100 is re-installed into the lower half of the needle 10 to prevent the needle 10 from accidentally injuring the operator and the person whose blood is being collected.

[0043] The safest blood collection needle provided in this embodiment has the following advantages:

[0044] In this embodiment, the needle shield 30 can be fixed by setting the first clamping position 21 to cooperate with the opening, making the safety blood collection needle more convenient during transportation and use. In addition, the needle 10 can be retracted into the needle shield 30 by cooperating with the second clamping position 22 and the opening, reducing harm to the operator and avoiding cross infection.

[0045] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A safe blood collection needle, characterized in that: It comprises a needle, a needle hub sleeve and a needle shield; the needle hub sleeve is sleeved on the needle, the needle shield is hinged on the outer wall of the needle hub sleeve, the needle hub sleeve is provided with a first clamping position and a second clamping position, an opening is provided on the end of the needle shield connected to the needle hub sleeve, when the opening cooperates with the first clamping position, the needle hub sleeve and the needle shield are locked in the first state, and when the opening cooperates with the second clamping position, the needle hub sleeve and the needle shield are locked in the second state.

2. A safety blood collection needle according to claim 1, characterized in that: The needle seat sleeve and the needle protection cover are connected through a flexible sheet.

3. A safety blood collection needle according to claim 1, characterized in that: An anti-slip protrusion is arranged on one end of the needle protection cover close to the needle seat sleeve.

4. A safety blood collection needle according to claim 1, characterized in that: A blocking piece for clamping the needle is arranged inside the needle protection cover.

5. A safety blood collection needle according to claim 4, characterized in that: The blocking piece is in an L-shape and is made of plastic.

6. A safety blood collection needle according to claim 1, characterized in that: The safety blood collection needle also includes a needle seat, a needle hole is arranged in the middle of the needle seat, the needle head is inserted into the needle hole, and the needle seat sleeve is sleeved on the needle seat.

7. A safety blood collection needle according to claim 6, characterized in that: The safety blood collection needle also includes an upper needle tube and a lower needle tube. The upper needle tube covers the upper half of the needle and is connected to the needle seat, and the lower needle tube covers the lower half of the needle and is connected to the needle seat.

8. A safe blood collection needle according to claim 7, characterized in that: The upper end of the needle seat sleeve is provided with a circle of grooves, and the bottom of the upper needle tube is provided with an insertion section, and the insertion section is inserted into the groove.

9. The safety blood collection needle according to claim 6, characterized in that: The safety blood collection needle also includes a protective sleeve, a snap key is provided at the bottom of the needle seat, the inner surface of the protective sleeve is provided in a connecting groove, the protective sleeve holds the lower half of the needle therein, and the connection between the protective sleeve and the needle seat is achieved through the matching connection of the snap key and the connecting groove.

10. The safety blood collection needle according to claim 1, characterized in that: The needle seat sleeve and the needle protection cover are integrally formed and made of plastic.

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