Protective vein blood sampling device capable of preventing needle stick injury

Abstract

The utility model discloses a protective vein blood sampling device capable of preventing needle stick injury, and relates to the technical field of medical instruments. The protective needle-pricking-injury-preventing vein blood sampling device comprises a puncture needle head, a needle handle, a connecting tube and a connecting needle head which are sequentially connected, wherein the connecting needle head is used for being connected with a blood sampling tube; a puncture-proof protective cover is arranged at the end, close to the connecting needle head, of the connecting tube, one end of the puncture-proof protective cover is fixedly connected to the connecting tube, the puncture-proof protective cover is arranged away from an opening in the end connected with the connecting tube, and the connecting needle head is arranged in the puncture-proof protective cover; the outer side of the connecting needle head is sleeved with a first protection needle cap, the first protection needle cap is arranged in the puncture-proof protection cover and used for enabling the connecting needle head to puncture the first protection needle cap to be connected with the blood collection tube during blood collection, and the first protection needle cap is fixedly connected with the connecting tube; a second protection needle cap is arranged on the outer side of the first protection needle cap in a sleeving mode, extends out of the opening of the puncture-proof protection cover and is detachably connected with the connecting pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a protective needle-prick-proof venous blood sampling device. Background Art

[0002] With the development of medical technology and the improvement of occupational safety awareness of medical staff, venous blood drawing, as an indispensable operation in clinical testing, treatment and nursing, has received increasing attention for its safety.

[0003] In the traditional venous blood collection process, medical staff need to operate precisely to align the connecting needle and penetrate the sealing film on the top of the blood collection tube. If the operation is not careful, the connecting needle may slip due to failure to accurately fit into the preset notch of the blood collection tube. In this case, it may not only lead to loss of blood samples, but more seriously, it may cause needlestick accidents. According to statistics, needlestick incidents are one of the main occupational injury risks faced by medical staff. The blood-borne pathogens involved, such as hepatitis B virus (HBV), hepatitis C virus (HCV) and human immunodeficiency virus (HIV), will greatly increase the risk of medical staff contracting serious infectious diseases. Utility Model Content

[0004] To this end, an embodiment of the utility model provides a protective anti-needle-stick venous blood collection device to solve the problem that the existing venous blood collection needles in the above-mentioned technology are prone to cause medical staff to be stabbed during blood collection, thereby increasing the risk of medical staff being infected with serious infectious diseases.

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

[0006] A protective needle-stick-proof venous blood collection device comprises a puncture needle, a needle handle, a connecting tube and a connecting needle connected in sequence, wherein the connecting needle is used to connect a blood collection tube;

[0007] The end of the connecting tube close to the connecting needle is provided with a puncture-proof protective cover, one end of the puncture-proof protective cover is fixedly connected to the connecting tube, the puncture-proof protective cover is arranged away from the end opening connected to the connecting tube, and the connecting needle is placed in the puncture-proof protective cover;

[0008] The outer side of the connecting needle is provided with a first protective needle cap, and the first protective needle cap is placed in the anti-puncture protective cover, and is used for the connecting needle to pierce the first protective needle cap and connect with the blood collection tube during blood collection, and the first protective needle cap is fixedly connected to the connecting tube; the outer side of the first protective needle cap is provided with a second protective needle cap, and the second protective needle cap extends out from the opening of the anti-puncture protective cover, and the second protective needle cap is detachably connected to the connecting tube.

[0009] Optionally, the first protective needle cap is made of medical rubber material.

[0010] Optionally, the puncture-proof protective cover comprises a connecting portion and a protective portion which are integrally arranged, the connecting portion is used to connect the connecting tube, and the protective portion is used to protect the connecting needle and the first protective needle cap;

[0011] The connecting portion is a conical structure, the protecting portion is a square cylindrical structure, and a folding line for bending is arranged on one pair of opposite side walls of the stab-proof protective cover, so as to fold the stab-proof protective cover.

[0012] Optionally, the stab-proof protective cover is made of transparent material.

[0013] Optionally, the second protective needle cap is fixed to the connecting tube by snap connection.

[0014] The utility model has at least the following beneficial effects:

[0015] The utility model is provided with a puncture-proof protective cover on the outside of the first needle cap and the connecting needle. When in use, the second protective needle cap is removed and the blood collection needle is placed in the puncture-proof protective cover, so that the preset notch on the blood collection needle can correspond to the connecting needle. Even if the correspondence fails to be complete, the connecting needle will not pierce the puncture-proof protective cover, thereby protecting medical staff from being stabbed, thereby reducing the risk of medical staff being infected with serious infectious diseases. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly explain the prior art and the present invention, the following briefly introduces the drawings required for describing the prior art and the present invention. Obviously, the drawings described below are only exemplary, and for ordinary technicians in this field, other drawings can be derived from the provided drawings without creative work.

[0017] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so that people familiar with this technology can understand and read them. They are not used to limit the conditions under which the present invention can be implemented. Any structural modification, change in proportion or adjustment of size should still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0018] Figure 1 This is a schematic diagram of the structure of an embodiment of the utility model from a first viewing angle;

[0019] Figure 2 A schematic diagram of the structure of an embodiment of the utility model from a second viewing angle;

[0020] Figure 3 This is a schematic diagram of the structure from a third viewing angle of an embodiment of the utility model;

[0021] Figure 4 for Figure 3 Schematic diagram of the cross-sectional structure of the AA part.

[0022] Description of reference numerals:

[0023] 1. Puncture needle; 2. Needle handle; 3. Connecting needle; 4. Connecting tube; 5. Anti-puncture protective cover; 51. Connecting part; 52. Protective part; 6. First protective needle cap; 7. Second protective needle cap; 8. Folding line; 9. Fan edge. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0025] In the description of the present invention, unless otherwise specified, "plurality" means two or more. The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the present invention and the above-mentioned drawings are intended to distinguish the objects referred to. For schemes with a sequential flow, this terminology does not have to be understood as describing a specific order or sequence. For schemes with device structures, this terminology does not distinguish between importance, positional relationships, etc.

[0026] In addition, the terms "comprises", "has" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus that includes a series of steps or units is not necessarily limited to those steps or units that have been explicitly listed, but may also include other steps or units that are not explicitly listed but are inherent to these processes, methods, products or apparatuses, or steps or units that are added based on further optimization schemes conceived by the present invention.

[0027] like Figure 1-Figure 4 As shown, a protective needle-stick-proof venous blood sampling device disclosed in the utility model comprises a puncture needle 1, a needle handle 2, a connecting tube 4 and a connecting needle 3 connected in sequence, and the connecting needle 3 is used to connect a blood sampling tube;

[0028] The end of the connecting tube 4 close to the connecting needle 3 is provided with a puncture-proof protective cover 5, one end of the puncture-proof protective cover 5 is fixedly connected to the connecting tube 4, and the puncture-proof protective cover 5 is arranged away from the end opening connected to the connecting tube 4, and the connecting needle 3 is placed in the puncture-proof protective cover 5;

[0029] The outer side of the connecting needle 3 is provided with a first protective needle cap 6, and the first protective needle cap 6 is placed in the anti-puncture protective cover 5, which is used for the connecting needle 3 to pierce the first protective needle cap 6 and connect with the blood collection tube during blood collection, and the first protective needle cap 6 is fixedly connected to the connecting tube 4; the outer side of the first protective needle cap 6 is provided with a second protective needle cap 7, and the second protective needle cap 7 extends out from the opening of the anti-puncture protective cover 5, and the second protective needle cap 7 is detachably connected to the connecting tube 4.

[0030] The first protective needle cap 6 is made of medical rubber.

[0031] The connecting needle 3 at one end of the connecting tube 4 is used to connect the blood collection tube. The first protective needle cap 6 is sleeved on the outer side of the connecting needle 3. It is used to protect the needle and is made of a material that can be pierced by the connecting needle 3, generally a medical rubber material. When the connecting needle 3 is connected to the blood collection tube, the first protective needle cap is pressed against the sealing film of the blood collection tube, and then the connecting needle 3 is pushed hard, so that the connecting needle 3 pierces the first protective needle cap 6 and the sealing film on the blood collection tube in turn.

[0032] The second protective needle cap 7 is fixed to the connecting tube 4 in a detachable manner, generally by snap-fitting, and has the same structure and material as the protective needle cap on the existing venous blood collection needle, which will not be described in detail here;

[0033] The above-mentioned stab-proof protective cover 5 is made of plastic material and is sleeved on the connecting tube 4. Specifically, the stab-proof protective cover 5 is fixed on the joint connecting the connecting needle 3 and the connecting tube 4. The joint is used as a needle and a hose connection. It is a prior art in the field of intravenous puncture needles and will not be described in detail here. A hollow protective cavity is provided inside it, and an opening is provided at the bottom. The lengths of the connecting needle 3 and the first protective needle cap 6 do not exceed the height of the protective cavity of the stab-proof protective cover 5, so that they can be completely placed in the stab-proof protective cover 5. Even if the medical staff makes an operation error, it will be blocked by the stab-proof protective cover 5 and will not stab the medical staff, thereby avoiding the risk of medical staff being infected with serious infectious diseases;

[0034] Furthermore, the size of the protective cavity of the puncture-proof protective cover 5 can be set to a structure that is compatible with the size of the blood collection tube, so that when the blood collection tube is extended into the puncture-proof protective cover 5 from the opening, the preset notch on the blood collection tube just corresponds to the connecting needle 3, and the blood collection tube is pushed into the puncture-proof protective cover 5 with force from the outside, so that the connecting needle 3 can pierce the blood collection tube, thereby achieving blood collection.

[0035] The length of the puncture-proof protective cover 5 is smaller than the length of the blood collection tube and the second protective needle cap 7, which is convenient for pulling out the second protective needle cap 7 to connect the blood collection tube, and is also convenient for observing the blood collection volume in the blood collection tube; at the same time, the length of the puncture-proof protective cover 5 is larger than the length of the connecting needle 3 and the first protective needle cap 6, and the connecting needle 3 and the second protective needle cap 7 can be covered to prevent accidental injury to medical staff.

[0036] The puncture-proof protective cover 5 includes a connecting portion 51 and a protective portion 52 which are integrally arranged. The connecting portion 51 is used to connect the connecting tube 4, and the protective portion 52 is used to protect the connecting needle 3 and the first protective needle cap 6.

[0037] The connecting portion 51 is a conical hard structure, the protective portion 52 is a square cylindrical structure, and a folding line 8 for bending is provided on one pair of opposite side walls of the stab-proof protective cover 5 for folding the stab-proof protective cover 5 .

[0038] The above-mentioned stab-proof protective cover 5 is made of plastic material, and the folding lines 8 opened on one pair of opposite sides of the stab-proof protective cover 5 are extruded in advance by machine equipment, so that the original state of the stab-proof protective cover 5 is a folded state. When in use, the stab-proof protective cover 5 can be opened. At the same time, the setting of the folding lines 8 makes the stab-proof protective cover 5 still have a tendency to fold inwards after being opened, so that the blood collection tube can be clamped and the blood collection tube is not easy to fall off.

[0039] The stab-proof protective cover 5 is made of transparent material.

[0040] The puncture-proof protective cover 5 is made of a transparent material, which can be used to conveniently observe whether the connecting needle 3 has pierced into the blood collection tube and the blood collection situation.

[0041] The second protective needle cap 7 is fixedly connected to the connecting tube 4 by clamping.

[0042] In another embodiment, Figure 2 and Figure 3 As shown, in order to facilitate the insertion of the blood collection tube, a fan edge 9 structure is provided at the lower edge of the puncture-proof protective cover 5. Medical staff can apply force by hooking the fan edge. The fan edge structure 9 is not on the same side as the folding line 8, and will not affect the folding of the puncture-proof protective cover.

[0043] The above specific embodiments may be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments.

[0044] The technical features of the above embodiments may be arbitrarily combined (as long as there is no contradiction in the combination of these technical features). To make the description concise, not all possible combinations of the technical features in the above embodiments are described; these embodiments that are not explicitly written should also be considered to be within the scope of this specification.

[0045] The above is a relatively specific and detailed description of the utility model through general description and specific embodiments. It should be pointed out that, without departing from the concept of the utility model, it is obvious that several variations and improvements can be made to these specific embodiments, which all belong to the protection scope of this application. Therefore, the protection scope of the patent of this application shall be based on the attached claims.

Claims

1. A protective needle-stick-proof venous blood sampling device, comprising a puncture needle, a needle handle, a connecting tube and a connecting needle connected in sequence, wherein the connecting needle is used to connect a blood sampling tube; Features: The end of the connecting tube close to the connecting needle is provided with a puncture-proof protective cover, one end of the puncture-proof protective cover is fixedly connected to the connecting tube, the puncture-proof protective cover is arranged away from the end opening connected to the connecting tube, and the connecting needle is placed in the puncture-proof protective cover; The outer side of the connecting needle is provided with a first protective needle cap, and the first protective needle cap is placed in the anti-puncture protective cover, and is used for the connecting needle to pierce the first protective needle cap and connect with the blood collection tube during blood collection, and the first protective needle cap is fixedly connected to the connecting tube; the outer side of the first protective needle cap is provided with a second protective needle cap, and the second protective needle cap extends out from the opening of the anti-puncture protective cover, and the second protective needle cap is detachably connected to the connecting tube.

2. A protective needle-stick-proof venous blood sampling device according to claim 1, characterized in that: The first protective needle cap is made of medical rubber material.

3. A protective needle-stick-proof venous blood sampling device according to claim 1, characterized in that: The puncture-proof protective cover comprises a connecting portion and a protective portion which are integrally arranged, wherein the connecting portion is used to connect the connecting tube, and the protective portion is used to protect the connecting needle and the first protective needle cap; The connecting portion is a conical structure, the protecting portion is a square cylindrical structure, and a folding line for bending is arranged on one pair of opposite side walls of the stab-proof protective cover, so as to fold the stab-proof protective cover.

4. A protective needle-stick-proof venous blood sampling device according to claim 1, characterized in that: The stab-proof protective cover is made of transparent material.

5. A protective needle-stick-proof venous blood sampling device according to claim 1, characterized in that: The second protective needle cap is clamped and fixed to the connecting tube.

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