WO2014101569A1 - 双面盖帽安全便捷式一次性采血针 - Google Patents

双面盖帽安全便捷式一次性采血针 Download PDF

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Publication number
WO2014101569A1
WO2014101569A1 PCT/CN2013/086333 CN2013086333W WO2014101569A1 WO 2014101569 A1 WO2014101569 A1 WO 2014101569A1 CN 2013086333 W CN2013086333 W CN 2013086333W WO 2014101569 A1 WO2014101569 A1 WO 2014101569A1
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WO
WIPO (PCT)
Prior art keywords
needle
cap
blind hole
blood collection
handle
Prior art date
Application number
PCT/CN2013/086333
Other languages
English (en)
French (fr)
Inventor
施国平
Original Assignee
苏州施莱医疗器械有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 苏州施莱医疗器械有限公司 filed Critical 苏州施莱医疗器械有限公司
Priority to BR112015013471-8A priority Critical patent/BR112015013471B1/pt
Priority to US14/758,316 priority patent/US10524708B2/en
Priority to EP13867074.0A priority patent/EP2939596B1/en
Priority to RU2015131079A priority patent/RU2609055C1/ru
Publication of WO2014101569A1 publication Critical patent/WO2014101569A1/zh

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
    • A61B5/15101—Details
    • A61B5/15103—Piercing procedure
    • A61B5/15105—Purely manual piercing, i.e. the user pierces the skin without the assistance of any driving means or driving devices
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150015—Source of blood
    • A61B5/150022—Source of blood for capillary blood or interstitial fluid
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150381—Design of piercing elements
    • A61B5/150503—Single-ended needles
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150534—Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
    • A61B5/150541—Breakable protectors, e.g. caps, shields or sleeves, i.e. protectors separated destructively, e.g. by breaking a connecting area
    • A61B5/150549—Protectors removed by rotational movement, e.g. torsion or screwing
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150534—Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
    • A61B5/15058—Joining techniques used for protective means
    • A61B5/150618—Integrally moulded protectors, e.g. protectors simultaneously moulded together with a further component, e.g. a hub, of the piercing element
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150534—Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
    • A61B5/150694—Procedure for removing protection means at the time of piercing
    • A61B5/150717—Procedure for removing protection means at the time of piercing manually removed
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
    • A61B5/15142—Devices intended for single use, i.e. disposable
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150381—Design of piercing elements
    • A61B5/150412—Pointed piercing elements, e.g. needles, lancets for piercing the skin
    • A61B5/150435—Specific design of proximal end

Definitions

  • the present invention relates to a disposable medical blood collection needle, and particularly relates to a double-sided cap safety and convenient disposable blood collection needle.
  • the blood collection needle improves the design of the needle cap on the basis of the safe and convenient design in the past, so the use is more Safe and convenient, it is especially suitable for family personal care blood collection.
  • the diameter of the blood collection needle is made thinner.
  • the diameter of the blood collection needle is generally 21G (0 0.8mm), 23G ( ⁇ 0.64mm), 26G ( ⁇ 0.46mm), 28G (O 0.36mm).
  • the needle body of the structure blood collection needle is made of stainless steel, the needle handle and the needle cap are made of plastic, and the needle body is put into the mold cavity for injection molding at the time of manufacture, and finally the needle body is fixed in the needle handle and the needle cap made of plastic.
  • twist the needle cap to break the transition joint between the needle handle and the needle cap, then remove the needle cap to expose a certain length of the needle tip, and assemble it into the blood collection pen for blood collection.
  • the needle tip can be inserted into the special storage bucket of the sharp device without the needle tip, and the used blood collection needle tip is exposed to cause cross infection.
  • the needle cap cannot be discarded after the blood collection needle is used, and the needle tip is inserted into the needle cap for protection to ensure safety and prevention.
  • the tip of the needle breaks into the skin again, posing risks and harm to other members of the family.
  • the diameter of the blood collection needle is less than 30G ( ⁇ 0.30 ⁇ )
  • the diameter of the needle body is very thin, bending may occur during the process of inserting the needle tip into the needle cap, and it is even difficult to get into the needle cap, so that the needle tip is exposed, and no The role of protection to the tip of the needle.
  • the blood collection needle is composed of a needle body 1 with a needle tip 4, a needle handle 2 and a needle cap 3.
  • the needle cap 3 has a hat shape, the needle cap 3 has a blind hole, and one end of the blind hole serves as an open end of the needle cap 3, blind The other end of the hole serves as a plug end of the needle cap 3.
  • the front needle tip 4 is inserted into the plug end of the needle cap 3 (see Fig. 2), and the rear needle tip 4 is inserted into the blind hole from the open end (see Fig. 4).
  • the lancet has two types of caps when the cap is closed.
  • One type of cap is to put the unscrewed cap 3 on the table in advance, and the open end of the cap 3 may face downward or toward the side, the cap
  • this operation mode is safer, but the auxiliary action of flipping the needle cap 3 by the human hand is added, and the operation is not convenient; the other cap method is that the operator holds the needle with one hand.
  • the handle 2, the other hand directly picks up the needle cap 3 from the workbench and covers the needle tip 4. This operation is simple and quick, but lacks safety, especially for middle-aged patients or patients with poor eyesight. The risk of needle tipping to the hand. Therefore, how to design a humanized disposable blood collection needle that is safe and convenient is a subject of the present invention.
  • the present invention provides a double-sided cap safety and convenient disposable blood collection needle, the purpose of which is to solve the problem of safety and convenience of the prior disposable blood collection needle when the cap is used.
  • a double-sided cap safety and convenient disposable blood collection needle comprising a needle body with a needle tip, a needle handle and a needle cap, wherein the needle body is fixed in the needle handle, The tip extends from the first end of the needle handle and is inserted over the needle cap.
  • the main body of the needle cap is a block body, and the block body is provided with a first surface and a second surface. Both the first surface and the second surface are flat, one of which faces upward, and the other One is facing downward, and the angle between the two is less than 45° in the space; the first blind hole is provided on the first surface, and the second blind hole is provided on the second surface, the first blind hole and the second blind hole are both Matching with the first end of the needle handle in a mating relationship;
  • the outer surface of the block body except the first surface and the second surface is an outwardly convex curved surface or/and an outward convex The angular face.
  • the block body refers to a three-dimensional structure having a block shape.
  • the "upward” and “downward” include the case where the two faces are parallel to each other, and also includes the non-parallel in which the two faces have a certain angle in space, that is, an angle less than 45°. Case.
  • the angular surface refers to a surface with outwardly convex corners for the needle cap.
  • the block body has a flat structure, and a top surface of the flat structure is a first surface, and a bottom surface is a second surface.
  • the first blind hole and the second blind hole are coaxially arranged in the direction of the hole axis; in addition, the first blind hole and the second blind hole may also be eccentric in the direction of the hole axis. Arrangement.
  • the design concept and working principle of the present invention are: Since the existing twist cap lancet is more cumbersome and less secure in inserting the needle cap after use, the overall design concept of the present invention is when the user puts When the needle cap is thrown on the workbench, the needle cap is always in the state of preparation for inserting the needle, and thus the double-face cap type disposable blood collection needle of the present invention is thrown on the table when the needle cap is thrown The open end is always facing upwards, and the needle cap has a flat structure, so that the needle cap is not easily picked up by the human hand, so that the user can insert the needle tip into the needle cap on the work table with one hand when inserting the needle tip. in.
  • the main body of the needle cap is a block body, and the block body is provided with a first surface and a second surface, and the first surface and the second surface are both a plane, one of which faces upward and the other of which faces downward, and the angle between the two is less than 45 ° in the space;
  • the first blind hole is provided on the first surface, and the second blind hole is provided on the second surface;
  • the first blind hole and the second blind hole are matched in a mating relationship with the first end of the needle handle, such that the double side of the needle cap has a blind hole for inserting the first end of the needle handle;
  • the outer surfaces except the first side and the second side are outwardly convex curved surfaces or/and outwardly convex angular surfaces, when the needle cap is thrown on the workbench It is disadvantageous that the needle cap stays on the remaining outer surface and stays on the first side or the second side, so that the open end of the needle cap is always facing
  • the double-sided cap safety and convenient disposable blood collection needle provided by the invention is particularly suitable for household personal care use, and can effectively avoid use.
  • the risk of the human hand being punctured by the blood collection needle during the insertion of the needle tip into the needle cap is safe and convenient.
  • FIG. 1 is a perspective view of a prior art twist cap blood collection needle
  • Figure 2 is a cross-sectional view showing the structure of a prior art twist cap blood collection needle
  • Figure 3 is a schematic view showing the state of the prior art tactile cap blood collection needle after the needle cap is pulled out;
  • Figure 4 is a view showing a state in which a needle tip is inserted into a needle cap after use of a twist cap blood collection needle in the prior art
  • Figure 5 is a front perspective view of a first embodiment of the present invention.
  • Figure 6 is a rear perspective view of the first embodiment of the present invention.
  • Figure 7 is a cross-sectional view showing the structure of a first embodiment of the present invention.
  • Figure 8 is a state diagram of the needle cap after the first embodiment of the present invention is pulled out
  • Figure 9 is a view showing a state in which a needle tip is prepared for insertion into a needle cap after use according to the first embodiment of the present invention.
  • Figure 10 is a view showing a state in which a needle tip is inserted into a needle cap after use according to the first embodiment of the present invention
  • Figure 11 is a front perspective view of a second embodiment of the present invention.
  • Figure 12 is a side view of Figure 11;
  • Figure 13 is a rear perspective view of a second embodiment of the present invention.
  • Figure 14 is a side view of Figure 13;
  • Figure 15 is a cross-sectional view showing the structure of a second embodiment of the present invention
  • Figure 16 is a view showing a state after the needle cap is pulled out according to the second embodiment of the present invention
  • Figure 17 is a side view of Figure 16;
  • Figure 18 is a second view showing the state after the needle cap is pulled out according to the second embodiment of the present invention.
  • Figure 19 is a side view of Figure 18;
  • Figure 20 is a view showing a state in which a needle tip is prepared to be inserted into a needle cap after use according to a second embodiment of the present invention
  • Figure 21 is a view showing a state in which a needle tip is inserted into a needle cap after use according to a second embodiment of the present invention.
  • Figure 22 is a schematic view showing the structural change of Figure 7;
  • Embodiment 1 A double-sided cap safe and convenient disposable blood collection needle
  • the lancet comprises a needle body 1 with a needle tip 4, a needle handle 2 and a needle cap 3, the needle body 1 being fixed in the needle handle 2, the needle tip 4 being first from the needle handle 2 The end is extended and inserted into the needle cap 3.
  • the body of the needle cap 3 is a block body, and the block body is provided with a first face 5 and a second face 6.
  • Both the first face 5 and the second face 6 are flat, one of which faces upward The other one faces downward, and the angle between the two in the space is less than 45 °; the first side 5 is provided with a first blind hole 7, and the second surface 6 is provided with a second blind hole 8, the first blind hole Both the 7 and the second blind holes 8 are mated with the first end of the needle handle 2 in a mating relationship.
  • the outer surface of the block except the first surface 5 and the second surface 6 is an outwardly convex curved surface and an outwardly convex angular surface.
  • the first blind hole 7 and the second blind hole 8 are coaxially arranged in the direction of the hole axis.
  • Embodiment 2 A double-sided cap safe and convenient disposable blood collection needle
  • the lancet comprises a needle body 1 with a needle tip 4, a needle handle 2 and a needle cap 3, the needle body 1 being fixed in the needle shank 2, the needle tip 4 being first from the needle shank 2 The end is extended and inserted into the needle cap 3.
  • the main body of the needle cap 3 is a block body, the block body is a flat structure, the top surface of the flat structure is the first surface 5, the bottom surface is the second surface 6, the first surface 5 and The second face 6 is flat, one of which faces upward and the other faces downward, and the angle between the two in the space is less than 45 °; the first face 5 is provided with a first blind hole 7, second The second blind hole 8 is provided on the face 6, and the first blind hole 7 and the second blind hole 8 are matched with the first end of the needle handle 2 in a mating relationship.
  • the outer surface of the block except the first surface 5 and the second surface 6 is an outwardly convex angular surface.
  • the first blind hole 7 and the second blind hole 8 are eccentrically arranged in the direction of the hole axis.
  • the specific working process of the above two embodiments is as follows: When preparing for blood collection, the needle cap 3 on the blood collection needle is pulled out to expose the needle tip 4 for blood collection, and the needle handle 2 with the needle tip 4 should be used after use. One end is inserted into the needle cap 3 to prevent injury to other members of the family.
  • both sides of the needle cap 3 have blind holes for inserting the first end of the needle handle 2, that is, the first blind hole 7 and the second blind hole 8, except for the first face 5 and the second face 6
  • the remaining outer surfaces are outwardly convex curved surfaces or/and outwardly convex angular surfaces, so that when the needle cap 3 is thrown on the table, it is disadvantageous for the needle cap 3 to stay on the remaining outer surface and stay at the On the one side 5 or the second side 6; further, when the block body has a flat structure, the top surface of the flat structure is the first surface 5, and the bottom surface is the second surface 6, so that the height of the needle cap 3 is low and The cross-sectional area of the needle cap 3 is relatively large, which is also disadvantageous for the needle cap 3 to stay on the remaining outer surface to help the open end of the needle cap 3 always face upward, and on the other hand, the needle cap 3 is not easily taken by the human hand. As a result, the user is forced to insert the first end of the needle handle 2 into the needle cap

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Surgery (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Hematology (AREA)
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  • Molecular Biology (AREA)
  • Physics & Mathematics (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
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  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

一种双面盖帽安全便捷式一次性采血针，包括带针尖（4）的针体（1）、针柄（2）和针帽（3），针体（1）固定在针柄（2）内，针尖（4）从针柄（2）的第一端伸出并插在针帽（3）上，所述针帽（3）的主体为一块状体，该块状体上设有第一面（5）和第二面（6），第一面（5）和第二面（6）两者均为平面，其中一者朝上，另一者朝下，而且两者在空间中的夹角小于45°；第一面（5）上设有第一盲孔（7），第二面（6）上设有第二盲孔（8），第一盲孔（7）和第二盲孔（8）均与针柄（2）的第一端之间在插接关系上相匹配；所述块状体上，除第一面（5）和第二面（6）之外的其余外表面均为向外凸起的弧形面或/和向外凸起的棱角面。本采血针特别适用于家庭个人护理使用，能够有效避免在使用后针尖（4）插入针帽（3）过程中人手再次被采血针扎破的风险，使用安全，便捷。

Description

双面盖帽安全便捷式一次性采血针
技术领域
[0001] 本发明涉及一种一次性医用采血针， 具体涉及一种双面盖帽安全便捷式一次性采血 针， 该采血针在以往安全便捷设计的基础上改进了针帽的设计， 因此使用更加安全、 便捷， 特别适用于家庭个人护理采血。
背景技术
[0002] 随着血糖检测技术的不断提高， 血样检测仪器对采血量的需求越来越少。 为了减轻 痛感采血针的直径越做越细， 目前采血针的直径由粗到细一般为 21G ( O 0.8mm), 23G ( Φ 0.64mm) , 26G ( Φ 0.46mm) , 28G ( O 0.36mm) , 30G ( O 0.30mm) , 32G ( O 0.25mm) , 33G ( Φ 0.20mm) 中国专利 CN2482968Y公开了一件名称为《一次性注式采血针》 的实用 新型专利， 该专利的采血针由带针尖的针体、 针柄和针帽组成， 针体固定在针柄内， 针尖 从针柄的一端伸出并插在针帽内， 针柄与针帽之间通过包络针体的过渡结构连成一体。 这 种结构采血针的针体采用不锈钢材料， 针柄和针帽采用塑料， 制作时把针体放入模腔中一 次注塑成型， 最终将针体固定于塑料制成的针柄和针帽内， 使用时拧动针帽， 使针柄和针 帽的过渡连接处断裂， 然后拔下针帽露出一定长度的针尖， 并且装配到采血笔中进行采血。 通常这种采血针在医院使用后针尖可以不用扎入针帽， 而是将该采血针直接扔入装锐器的 专用收纳桶中， 以防使用过的采血针针尖外露带来交叉感染。 但在家庭个人护理使用后由 于一般家庭不具有医院专用的装锐器的收纳桶， 所以使用完采血针后不能丢弃针帽， 要将 针尖扎入到针帽中进行保护， 以确保安全， 防止针尖再次剌入皮肤， 给家庭其他成员带来 风险和伤害。 当采血针的直径小于 30G ( Φ 0.30ιηιη) 后， 由于针体的直径很细， 在针尖扎 入针帽过程中会发生弯曲， 甚至难以扎入针帽的现象， 从而使针尖外露， 没有起到针尖被 保护的作用。
[0003] 为了解决上述问题， 现有技术中还存在另一种采血针， 即扭式盖帽采血针， 参见附 图 1至附图 4所示。 这是另外一种在使用后针尖可以得到针帽保护的技术方案。 这种采血 针由带针尖 4的针体 1、 针柄 2和针帽 3组成， 针帽 3呈帽子状， 针帽 3具有一盲孔， 盲孔 的一端作为针帽 3的开口端， 盲孔的另一端作为针帽 3的插接端。使用前针尖 4插在针帽 3 的插接端 （见附图 2)， 使用后针尖 4从开口端插入到盲孔中 （见附图 4)。 当针体 1的直径 很细时， 由于采用了盖帽式保护， 避免了针尖 4难以扎入针帽 3甚至针尖弯曲的现象。 然 而， 这种采血针在盖帽时会出现两种盖帽方式， 一种盖帽方式是事先将拧下的针帽 3 放在 工作台上， 此时针帽 3的开口端可能朝下或朝向侧面， 盖帽时需要先将针帽 3的开口端翻 转朝上， 这种操作方式比较安全， 但增加了人手翻转针帽 3 的辅助动作， 操作不够简便； 另一种盖帽方式是操作者一只手手持针柄 2，另一只手从工作台上直接拿起针帽 3并盖上针 尖 4， 这种操作方式简便快捷， 但缺少安全性， 尤其对于中老年患者或视力不好的患者来说 会有针尖扎到手部的风险。 因此， 如何设计一款使用安全、 便捷的人性化一次性采血针是 本发明研究的课题。
发明内容
[0004] 本发明提供一种双面盖帽安全便捷式一次性采血针， 其目的是要解决现有一次性采 血针在使用后盖帽时的安全性和便捷性问题。
[0005] 为达到上述目的， 本发明采用的技术方案是： 一种双面盖帽安全便捷式一次性采血 针， 包括带针尖的针体、 针柄和针帽， 针体固定在针柄内， 针尖从针柄的第一端伸出并插 在针帽上。
[0006] 所述针帽的主体为一块状体， 该块状体上设有第一面和第二面， 第一面和第二面两 者均为平面， 其中一者朝上， 另一者朝下， 而且两者在空间中的夹角小于 45 ° ； 第一面上 设有第一盲孔， 第二面上设有第二盲孔， 第一盲孔和第二盲孔均与针柄的第一端之间在插 接关系上相匹配；
所述块状体上， 除第一面和第二面而外的其余外表面均为向外凸起的弧形面或 /和向外凸起 的棱角面。
[0007] 上述技术方案中的有关内容解释如下：
1、 上述方案中， 所述块状体是指形状为块状的立体结构。
[0008] 2、 上述方案中， 所述 "朝上"和 "朝下"包括两个面相互平行的情况， 也包括两个 面在空间上具有一定夹角即夹角小于 45 ° 的不平行的情况。
[0009] 3、 上述方案中， 所述棱角面指的是对于所述针帽而言带有向外凸起的棱角的面。
[0010] 4、上述方案中， 所述块状体为扁平结构， 扁平结构的顶面为第一面， 底面为第二面。
[0011] 5、 上述方案中， 所述第一盲孔与第二盲孔在孔轴方向上同轴布置； 此外， 所述第一 盲孔与第二盲孔还可以在孔轴方向上偏心布置。
[0012] 本发明设计构思以及工作原理是： 由于现有的扭式盖帽采血针在使用后的两种针尖 插入针帽的方式较繁琐并且较不安全， 本发明总体设计构思是当使用者把针帽扔在工作台 上时， 针帽对于使用后的采血针始终处于插装针尖的准备状态， 为此本发明的双面盖帽式 一次性采血针在针帽被扔在工作台上时针帽的开口端始终朝上， 此外针帽呈扁平结构， 使 针帽不容易被人手拿起， 这样在进行插装针尖时使用者一只手就可以将针尖插装到位于工 作台上的针帽中。
[0013] 本发明具体设计构思以及工作原理如下， 所述针帽的主体为一块状体， 该块状体上 设有第一面和第二面， 第一面和第二面两者均为平面， 其中一者朝上， 另一者朝下， 而且 两者在空间中的夹角小于 45 ° ； 第一面上设有第一盲孔， 第二面上设有第二盲孔， 第一盲 孔和第二盲孔均与针柄的第一端之间在插接关系上相匹配， 这样， 针帽的双面具有用于插 接针柄的第一端的盲孔； 所述块状体上， 除第一面和第二面而外的其余外表面均为向外凸 起的弧形面或 /和向外凸起的棱角面， 当针帽被扔在工作台上时不利于针帽在其余外表面停 留而停留在第一面或第二面上， 从而保持针帽的开口端始终朝上， 其中针帽的开口端指的 第一面或第二面上具有盲孔的一端； 此外， 当所述块状体为扁平结构时， 扁平结构的顶面 为第一面， 底面为第二面， 使得针帽的高度较低并且针帽的横截面积相对较大， 这样也会 不利于针帽在其余外表面停留而有助于针帽的开口端始终朝上， 另一方面使针帽不容易被 人手拿起， 迫使使用者用一只手将针柄的第一端插装到位于工作台上的针帽中， 从而保证 了使用者的安全。
[0014] 由于上述技术方案运用， 本发明与现有技术相比具有下列优点和效果： 本发明提供 的双面盖帽安全便捷式一次性采血针特别适用于家庭个人护理使用， 能够有效避免在使用 后针尖插入针帽过程中人手再次被采血针扎破的风险， 同时具有安全和便捷的效果。 附图说明
[0015] 附图 1为现有技术中扭式盖帽采血针的立体示意图；
附图 2为现有技术中扭式盖帽采血针的结构剖视图；
附图 3为现有技术中扭式盖帽采血针拔出针帽后状态示意图；
附图 4为现有技术中扭式盖帽采血针使用后针尖插入针帽的状态图；
附图 5为本发明实施例一的正面立体图；
附图 6为本发明实施例一的背面立体图；
附图 7为本发明实施例一的结构剖视图；
附图 8为本发明实施例一的拔出针帽后状态图；
附图 9为本发明实施例一的使用后针尖准备插入针帽的状态图；
附图 10为本发明实施例一的使用后针尖插入针帽的状态图；
附图 11为本发明实施例二的正面立体图；
附图 12为附图 11的侧视图；
附图 13为本发明实施例二的背面立体图；
附图 14为附图 13的侧视图；
附图 15为本发明实施例二的结构剖视图； 附图 16为本发明实施例二的拔出针帽后状态一图；
附图 17为附图 16的侧视图；
附图 18为本发明实施例二的拔出针帽后状态二图；
附图 19为附图 18的侧视图；
附图 20为本发明实施例二的使用后针尖准备插入针帽的状态图；
附图 21为本发明实施例二的使用后针尖插入针帽的状态图；
附图 22为附图 7的结构变化示意图。
[0016] 以上附图中： 1、 针体； 2、 针柄； 3、 针帽； 4、 针尖； 5、 第一面； 6、 第二面； 7、 第一盲孔； 8、 第二盲孔； 9、 连通孔。
具体实施方式
[0017] 下面结合附图及实施例对本发明作进一步描述：
实施例一： 一种双面盖帽安全便捷式一次性采血针
参见附图 5至附图 10所示， 该采血针包括带针尖 4的针体 1、 针柄 2和针帽 3， 针体 1固 定在针柄 2内， 针尖 4从针柄 2的第一端伸出并插在针帽 3上。 所述针帽 3的主体为一块 状体， 该块状体上设有第一面 5和第二面 6， 第一面 5和第二面 6两者均为平面， 其中一者 朝上， 另一者朝下， 而且两者在空间中的夹角小于 45 ° ； 第一面 5上设有第一盲孔 7， 第 二面 6上设有第二盲孔 8，第一盲孔 7和第二盲孔 8均与针柄 2的第一端之间在插接关系上 相匹配。 所述块状体上， 除第一面 5和第二面 6而外的其余外表面均为向外凸起的弧形面 和向外凸起的棱角面。 所述第一盲孔 7与第二盲孔 8在孔轴方向上同轴布置。
[0018] 实施例二： 一种双面盖帽安全便捷式一次性采血针
参见附图 11至附图 21所示， 该采血针包括带针尖 4的针体 1、 针柄 2和针帽 3， 针体 1固 定在针柄 2内， 针尖 4从针柄 2的第一端伸出并插在针帽 3上。 所述针帽 3的主体为一块 状体， 所述块状体为扁平结构， 扁平结构的顶面为第一面 5， 底面为第二面 6， 第一面 5和 第二面 6两者均为平面， 其中一者朝上， 另一者朝下， 而且两者在空间中的夹角小于 45 ° ； 第一面 5上设有第一盲孔 7， 第二面 6上设有第二盲孔 8， 第一盲孔 7和第二盲孔 8均与针 柄 2的第一端之间在插接关系上相匹配。 所述块状体上， 除第一面 5和第二面 6而外的其 余外表面均为向外凸起的棱角面。 所述第一盲孔 7与第二盲孔 8在孔轴方向上偏心布置。
[0019] 以上两个实施例的具体工作过程如下： 在准备采血时， 拔出采血针上的针帽 3露出 针尖 4， 以进行采血， 使用后应该把带有针尖 4的针柄 2的第一端插接到针帽 3中， 以防止 对家庭其他成员产生伤害。 由于针帽 3的双面均具有用于插接针柄 2第一端的盲孔， 即第 一盲孔 7和第二盲孔 8，同时除第一面 5和第二面 6而外的其余外表面均为向外凸起的弧形 面或 /和向外凸起的棱角面， 因此当针帽 3被扔在工作台上时不利于针帽 3在其余外表面停 留而停留在第一面 5或第二面 6上； 此外， 当所述块状体为扁平结构时， 扁平结构的顶面 为第一面 5， 底面为第二面 6， 使得针帽 3的高度较低并且针帽 3的横截面积相对较大， 这 样也会不利于针帽 3在其余外表面停留而有助于针帽 3的开口端始终朝上， 另一方面使针 帽 3不容易被人手拿起， 迫使使用者用一只手将针柄 2的第一端插装到位于工作台上的针 帽 3中， 从而保证了使用者的安全。
[0020] 上述实施例只为说明本发明的技术构思及特点， 其目的在于让熟悉此项技术的人士 能够了解本发明的内容并据以实施， 并不能以此限制本发明的保护范围。 凡根据本发明精 神实质所作的等效变化或修饰， 都应涵盖在本发明的保护范围之内。 以实施例一为例， 在 上述实施例一的基础上作等效变化， 参见附图 22所示， 在第一盲孔 7和第二盲孔 8之间有 一贯通两个盲孔的连通孔 9， 连通孔 9是一个小孔， 此时既不影响第一盲孔 7和第二盲孔 8 作为盲孔的本质， 也不能影响本发明技术构思和效果的实现。

Claims

权 利 要 求 书
1. 一种双面盖帽安全便捷式一次性采血针， 包括带针尖 （4) 的针体 （1 )、 针柄 （2) 和 针帽 （3 )， 针体 （1 ) 固定在针柄 （2) 内， 针尖 （4) 从针柄 （2) 的第一端伸出并插在针 帽 （3 ) 上， 其特征在于- 所述针帽（3 )的主体为一块状体， 该块状体上设有第一面（5 )和第二面（6)， 第一面（5 ) 和第二面 （6) 两者均为平面， 其中一者朝上， 另一者朝下， 而且两者在空间中的夹角小 于 45 ° ； 第一面 （5 ) 上设有第一盲孔 （7)， 第二面 （6) 上设有第二盲孔 （8)， 第一盲 孔 （7) 和第二盲孔 （8) 均与针柄 （2) 的第一端之间在插接关系上相匹配；
所述块状体上， 除第一面（5 )和第二面（6)而外的其余外表面均为向外凸起的弧形面或 /和向外凸起的棱角面。
2. 根据权利要求 1所述的一次性采血针， 其特征在于： 所述块状体为扁平结构， 扁平结 构的顶面为第一面 （5 )， 底面为第二面 （6)。
3. 根据权利要求 1所述的一次性采血针，其特征在于：所述第一盲孔（7)与第二盲孔（8) 在孔轴方向上同轴布置。
4. 根据权利要求 1所述的一次性采血针，其特征在于：所述第一盲孔（7)与第二盲孔（8) 在孔轴方向上偏心布置。
PCT/CN2013/086333 2012-12-28 2013-10-31 双面盖帽安全便捷式一次性采血针 WO2014101569A1 (zh)

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