Safety blood sampling device

Abstract

The utility model provides a safety type blood sampling device, which relates to the field of medical instruments, and comprises a needle, a needle seat, an annular piece and a needle protecting sleeve, the needle is arranged in the middle of the needle seat in a penetrating manner, the annular piece is sleeved on the needle seat, and one end of the needle protecting seat is hinged with the annular piece; a limiting piece is arranged on the annular piece, an opening is formed in the end, connected with the annular piece, of the needle head protection sleeve, and when the needle head protection sleeve rotates relative to the annular piece, the opening surrounds the needle head base and abuts against the upper surface or the lower surface of the limiting piece. Potential safety hazards existing when medical staff handle the blood taking needle can be reduced, manufacturing cost is saved, and energy conservation and environment protection are facilitated.

Description

Technical Field

[0001] The utility model relates to the field of medical instruments, and in particular to a safe blood sampling device. Background Art

[0002] The inventors have found that in order to ensure that the blood collection needle is in a sterile environment before use, a protective cover is provided on the outside of the blood collection needle to seal the needle, and the protective cover is removed during use. However, after use, the protective cover of the existing blood collection needle is often difficult to continue to play a protective role. This poses a serious safety hazard when medical staff handle the used blood collection needle. There are also problems such as unreasonable design, large amount of raw materials used and high cost, which is not conducive to current energy conservation and environmental protection. Utility Model Content

[0003] The purpose of the utility model is to provide a safe blood collection device, which can reduce the potential safety hazards when medical personnel handle blood collection needles, 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 a first aspect, the utility model provides a safe blood collection device, comprising a needle, a needle seat, an annular member and a needle protection sleeve, wherein the needle is inserted into the middle of the needle seat, the annular member is sleeved on the needle seat, and one end of the needle protection seat is hinged to the annular member;

[0006] A limiting member is arranged on the annular member, and an opening is arranged at one end of the needle shield connected to the annular member. When the needle shield rotates relative to the annular member, the opening surrounds the needle seat and abuts against the upper surface or the lower surface of the limiting member.

[0007] In an optional embodiment, the upper surface of the limiting member is sloped.

[0008] In an optional embodiment, the needle shield and the annular member are connected via a flexible sheet.

[0009] In an optional embodiment, an anti-slip protrusion is provided on one end of the needle protection sleeve close to the annular member.

[0010] In an optional embodiment, a blocking sheet is provided inside the needle protection sleeve.

[0011] In an optional embodiment, the blocking sheet and the needle protection sleeve are both made of plastic material.

[0012] In an optional embodiment, the safe blood collection device also includes an upper shell and a lower shell, the annular member is sleeved on the middle part of the needle seat, the upper shell covers the needle and the upper half of the needle seat and abuts against the upper surface of the annular member, and the lower shell covers the needle and the lower half of the needle seat and abuts against the lower surface of the annular member.

[0013] In an optional embodiment, a convex key is provided on the edge of the opening, a groove is provided on the lower surface of the limiting member, and the convex key cooperates with the groove.

[0014] In an optional embodiment, the safe blood collection device also includes a protective cover, a snap key is provided at the bottom of the needle seat, 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.

[0015] In an optional embodiment, the interior of the needle seat is a hollow structure.

[0016] The beneficial effects of the embodiments of the utility model are:

[0017] The utility model provides a safe blood sampling device, comprising a needle, a needle seat, an annular member and a needle protection sleeve, the needle is inserted into the middle part of the needle seat, the annular member is sleeved on the needle seat, one end of the needle protection seat is hinged to the annular member; a limiting member is arranged on the annular member, and an opening is arranged at one end of the needle protection sleeve connected to the annular member, when the needle protection sleeve rotates relative to the annular member, the opening embraces the needle seat and abuts against the upper surface or the lower surface of the limiting member. In the present scheme, when the opening is abutted against the upper surface of the limiter, the needle shield is fixed but does not cover the needle, and the device is in a state before use, at which time the needle shield and the annular member are relatively fixed; when the opening is abutted against the lower surface of the limiter, the needle shield is fixed and covers the needle, and the device is in a state after use, at which time the needle is retracted into the interior of the needle shield, and the needle shield is connected to the annular member by a hinged manner, so that the needle shield does not need to be removed and separated from the needle seat during use, which is convenient for subsequent use of the needle. The needle shield can retract the needle into the interior, further reducing the possibility of medical staff coming into contact with the used needle. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] 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.

[0019] Figure 1 A schematic diagram of the partial structure of a safe blood sampling device provided by an embodiment of the utility model;

[0020] Figure 2 for Figure 1 A partial enlarged schematic diagram;

[0021] Figure 3 A schematic diagram of the structure of a safe blood sampling device provided by an embodiment of the utility model;

[0022] Figure 4 A cross-sectional schematic diagram of a safe blood sampling device provided by an embodiment of the utility model;

[0023] Figure 5 A partially enlarged schematic diagram of a safe blood sampling device provided in an embodiment of the utility model.

[0024] icon:

[0025] 10-needle; 20-needle seat; 21-buckle key; 30-ring; 31-limiting member; 311-groove; 40-needle protection sleeve; 41-opening; 42-anti-slip convex point; 43-blocking sheet; 44-convex key; 50-flexible sheet; 60-upper shell; 70-lower shell; 80-protective sleeve; 81-connecting groove. DETAILED DESCRIPTION

[0026] 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.

[0027] 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.

[0028] 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.

[0029] 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.

[0030] 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.

[0031] 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.

[0032] like Figure 1-Figure 5 As shown, this embodiment provides a safe blood collection device, including a needle 10, a needle seat 20, an annular member 30 and a needle protection sleeve 40. The needle 10 is inserted into the middle of the needle seat 20, the annular member 30 is sleeved on the needle seat 20, and one end of the needle 10 protection seat is hinged to the annular member 30; a limiting member 31 is provided on the annular member 30, and an opening 41 is provided at one end of the needle protection sleeve 40 connected to the annular member 30. When the needle protection sleeve 40 rotates relative to the annular member 30, the opening 41 embraces the needle seat 20 and abuts against the upper surface or lower surface of the limiting member 31. Specifically, the needle 10 is fixed in the needle seat 20, and the annular member 30 and the needle seat 20 can be manufactured by an integrated molding process; in addition, the size of the opening 41 is smaller than the diameter of the needle seat 20, so that the opening 41 can produce elastic deformation when embracing the needle seat 20, and the opening 41 can clamp the needle seat 20, so that the connection between the needle seat 20 and the needle protection sleeve 40 can be firm within a certain external force range.

[0033] In detail, in this embodiment, when the opening 41 abuts against the upper surface of the limiter 31, the needle shield 40 is fixed, but the needle 10 is not covered, and the device is in a state before use. At this time, the needle shield 40 is relatively fixed to the annular member 30. When the opening 41 abuts against the lower surface of the limiter 31, the needle shield 40 is fixed and covers the needle 10. The device is in a state after use, and the needle 10 is retracted into the inside of the needle shield 40.

[0034] Before the present embodiment is used, the needle shield 40 rotates forwardly relative to the annular member 30 so that the opening 41 abuts against the upper surface of the limiting member 31. When the present embodiment is in use, the needle shield 40 rotates reversely relative to the annular member 30 so that the opening 41 is separated from the needle seat 20. After the present embodiment is used, the needle shield 40 rotates forwardly relative to the annular member 30 so that the opening 41 abuts against the upper surface of the limiting member 31. The operator continues to use force to rotate the needle shield 40 forwardly relative to the annular member 30. At this time, the opening 41 passes over the upper surface of the limiting member 31 and abuts against the lower surface of the limiting member 31. At the same time, the needle 10 is retracted into the interior of the needle shield 40.

[0035] It can be understood that in this embodiment, the needle shield 40 is connected to the ring member 30 by a hinged manner, so that the needle shield 40 does not need to be removed and separated from the needle seat 20 when in use, which facilitates the subsequent use of the needle 10. The needle shield 40 can retract the needle 10 into the interior, further reducing the possibility of medical staff contacting the used needle 10.

[0036] In a preferred embodiment, the upper surface of the stopper 31 is sloped. Specifically, each corner of the stopper 31 is chamfered, and it can be understood that the upper surface here is the same as the upper surface above, and the upper surface is sloped, so that the opening 41 can slide from the upper surface of the stopper 31 to the lower surface of the stopper 31 more easily.

[0037] In a preferred embodiment, the needle shield 40 and the ring member 30 are connected by a flexible sheet 50. It is understandable that the flexible sheet 50 is substantially a thin plastic sheet. In other embodiments, the flexible sheet 50 can also be replaced with a metal or non-metal hinge, and the specific method is not limited in this embodiment.

[0038] In a preferred embodiment, an anti-slip protrusion 42 is provided on one end of the needle protection sleeve 40 close to the annular member 30 .

[0039] It is understandable that the purpose of providing the anti-skid protrusions 42 is to prevent the thumb from slipping. In addition, the anti-skid protrusions 42 can also be replaced with anti-skid stripes, etc.

[0040] In a preferred embodiment, a blocking piece 43 is provided inside the needle protection sleeve 40. Specifically, the blocking piece 43 is L-shaped with an angle less than 90°, which can prevent the needle 10 from slipping out easily when the needle 10 is stuck in the L-shaped blocking piece.

[0041] In a preferred embodiment, a convex key 44 is provided at the edge of the opening 41, and a groove 311 is provided at the lower surface of the stopper 31, and the convex key 44 cooperates with the groove 311. It can be understood that when the opening 41 passes over the upper surface of the stopper 31 and abuts against the lower surface of the stopper 31, the convex key 44 slides into the groove 311. The purpose of this structural design is to further fix the relative position of the needle shield 40 and the ring member 30.

[0042] In this embodiment, the blocking sheet 43 and the needle protection cover 40 are both made of plastic material.

[0043] Understandably, plastic is cheap and easy to shape, which can reduce costs.

[0044] In a preferred embodiment, the safe blood collection device also includes an upper shell 60 and a lower shell 70. The annular member 30 is sleeved on the middle part of the needle seat 20. The upper shell 60 covers the upper half of the needle 10 and the needle seat 20 and abuts against the upper surface of the annular member 30. The lower shell 70 covers the lower half of the needle 10 and the needle seat 20 and abuts against the lower surface of the annular member 30.

[0045] It can be understood that the upper housing 60 and the lower housing 70 are mainly used to protect the needle 10 from being damaged before use, and can also prevent the needle 10 from stabbing people.

[0046] In order to save costs in this embodiment, both the upper shell 60 and the lower shell 70 are made of plastic.

[0047] In a preferred embodiment, the safe blood collection device also includes a protective cover 80, a snap key 21 is provided at the bottom of the needle seat 20, the inner surface of the protective cover 80 is provided in a connecting groove 81, the protective cover 80 inserts the lower half of the needle 10 therein, and the connection between the protective cover 80 and the needle seat 20 is achieved through the matching connection of the snap key 21 and the connecting groove 81.

[0048] Specifically, the interior of the needle seat 20 is a hollow structure, which can save materials as much as possible and reduce costs.

[0049] The stable and safe blood sampling device provided in this embodiment has the following advantages:

[0050] In this embodiment, when the opening 41 abuts against the upper surface of the limiter 31, the device is in a state before use, and the needle shield 40 is relatively fixed to the ring member 30; when the opening 41 abuts against the lower surface of the limiter 31, the device is in a state after use, and the needle 10 is retracted into the interior of the needle shield 40. By connecting the needle shield 40 to the ring member 30 in a hinged manner, the needle shield 40 does not need to be removed and separated from the needle seat 20 during use, which facilitates the subsequent use of the needle 10. The needle shield 40 can retract the needle 10 into the interior, further reducing the possibility of medical staff coming into contact with the used needle 10.

[0051] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A safe blood sampling device, characterized in that: It comprises a needle, a needle seat, an annular member and a needle protection sleeve, wherein the needle is inserted into the middle of the needle seat, the annular member is sleeved on the needle seat, and one end of the needle protection seat is hinged to the annular member; A limiting member is arranged on the annular member, and an opening is arranged at one end of the needle shield connected to the annular member. When the needle shield rotates relative to the annular member, the opening surrounds the needle seat and abuts against the upper surface or the lower surface of the limiting member.

2. A safe blood sampling device according to claim 1, characterized in that: The upper surface of the limiting member is sloped.

3. A safe blood sampling device according to claim 1, characterized in that: The needle protection sleeve and the annular member are connected via a flexible sheet.

4. A safe blood sampling device according to claim 1, characterized in that: An anti-slip convex point is arranged on one end of the needle protection sleeve close to the annular member.

5. A safe blood sampling device according to claim 1, characterized in that: A blocking piece is arranged inside the needle protection sleeve.

6. A safe blood sampling device according to claim 1, characterized in that: The edge of the opening is provided with a convex key, the lower surface of the limiting member is provided with a groove, and the convex key cooperates with the groove.

7. A safe blood sampling device according to claim 1, characterized in that: The safe blood collection device also includes an upper shell and a lower shell. The annular member is sleeved on the middle part of the needle seat. The upper shell covers the needle and the upper half of the needle seat and abuts against the upper surface of the annular member. The lower shell covers the needle and the lower half of the needle seat and abuts against the lower surface of the annular member.

8. A safe blood sampling device according to claim 7, characterized in that: The upper shell and the lower shell are both made of plastic.

9. A safe blood sampling device according to claim 1, characterized in that: The safe blood collection device also includes a protective cover, a snap key is provided at the bottom of the needle seat, the inner surface of the protective cover is provided in 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.

10. A safe blood sampling device according to claim 1, characterized in that: The interior of the needle seat is a hollow structure.

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