CN102284104A - A safe type venipuncture needle - Google Patents

A safe type venipuncture needle Download PDF

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Publication number
CN102284104A
CN102284104A CN 201110231682 CN201110231682A CN102284104A CN 102284104 A CN102284104 A CN 102284104A CN 201110231682 CN201110231682 CN 201110231682 CN 201110231682 A CN201110231682 A CN 201110231682A CN 102284104 A CN102284104 A CN 102284104A
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CN
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needle
shielding sleeve
hose
clamp
sleeve
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CN 201110231682
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Chinese (zh)
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CN102284104B (en )
Inventor
张亚平
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张亚平
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M39/00Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/22Valves or arrangement of valves
    • A61M39/28Clamping means for squeezing flexible tubes, e.g. roller clamps
    • A61M39/284Lever clamps
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150015Source of blood
    • A61B5/15003Source of blood for venous or arterial blood
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150206Construction or design features not otherwise provided for; manufacturing or production; packages; sterilisation of piercing element, piercing device or sampling device
    • A61B5/150259Improved gripping, e.g. with high friction pattern or projections on the housing surface or an ergonometric shape
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150374Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150381Design of piercing elements
    • A61B5/150389Hollow piercing elements, e.g. canulas, needles, for piercing the skin
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150374Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150381Design of piercing elements
    • A61B5/150503Single-ended needles
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150374Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150534Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
    • A61B5/150633Protective sleeves which are axially extensible, e.g. sleeves connected to, or integrated in, the piercing or driving device; pivotable protective sleeves
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/15074Needle sets comprising wings, e.g. butterfly type, for ease of handling
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/153Devices specially adapted for taking samples of venous or arterial blood, e.g. with syringes
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/155Devices specially adapted for continuous or multiple sampling, e.g. at predetermined intervals
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M39/00Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/02Access sites
    • A61M39/06Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/158Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body

Abstract

The invention relates to a safety vein puncture needle, which consists of a sheath, a needle tube, a needle base, a hose, a spring, a shielding sleeve and a disconnection cut-off clamp, wherein the needle tube is inserted and bonded at the front end of the needle base; the needle base is inserted into a longitudinal groove in an inner cavity of the front section of the shielding sleeve by a side wall ridge and is positioned, so that the direction of a cutting edge of a puncture needle tip is consistent with that of a handle; the shielding sleeve is sleeved outside the needle tube, the needle base and the hose; the spring can be compressed in space of the shielding sleeve and the front end of the needle base; the tail end of the shielding sleeve is bonded with the hose by high-frequency heat seal; the disconnection cut-off clamp is sleeved on the tail section of the shielding sleeve, and is inserted into an opening window of the shielding sleeve; and the wall of the lower section of the shielding sleeve is thickened to form a constricted pipe cavity, so that the side wall ridge at the front end of the needle base can be limited. When the puncture needle is used, a thin bridle of the shielding sleeve can be disconnected only by pinching the disconnection cut-off clamp, so that the shielding sleeve moves forwards under the acting force of the spring to cover the puncture needle completely, and the hose is closed by the cut-off clamp to the risk of needling harm, prevent bloodstain, liquid medicine and body fluid in the hose from overflowing and reduce the propagation of hematogenic diseases.

Description

一种安全型静脉穿刺针 A safe type venipuncture needle

(-)技术领域 (-) FIELD

[0001] 本发明涉及一种医疗器械,具体的说是一种用于对静脉血管(也可以是用于组织的腔室)内标本采集、向静脉血管输注药液、静脉采血和静脉输血过程的安全型穿刺针。 [0001] The present invention relates to a medical device, specifically for a vein of the sample collection (which may be a chamber of the tissue), the liquid infusion veins, venous blood and venous blood safe needle process.

(二)背景技术 (B) Background Art

[0002] 人们在防治疾病时,通常需要通过对静脉血管进行穿刺,对静脉血管内物质进行采集、分析检验获得人体生理或病理状态;也常常通过对静脉血管穿刺,将药液输注如静脉血管二达到全身,发挥、补偿、替代和治疗作用;在以上检验和治疗过程,都需要一种静脉穿刺针,实现对人体静脉血管的有损伤介入,从而建立体外到血管内的临时通道。 [0002] People in the prevention and treatment of disease, is usually required by vein puncture of the vein material was collected, analyzed to obtain inspection physiological or pathological state; often by vein puncture, the liquid such as intravenous infusion two vessels reached the body, play, compensation, substitution and therapeutic effect; in the above testing and treatment process, need an intravenous needle, realize there is damage to human intervention veins in order to establish in vitro into a temporary channel within the blood vessels.

[0003] 在此过程中,静脉穿刺针具有(向静脉血管或组织腔室)定点介入和建立临时通道的双重作用,需要精湛的技术,也存在一定危险,须在专业技术人员的掌控下进行。 [0003] In this process, venipuncture needle has a fixed intervention (to the vein or tissue chambers) and the establishment of the dual role of temporary access, you need technical skills, but also there is a certain danger, shall be carried out under the control of professional and technical personnel .

[0004] 目前,国内外使用的各种静脉穿刺针(输液针、输血针、采血针、活组织穿刺检查针、留置针等)都能够满足上述要求,但也都存在着严重不足和缺陷:目前国内外的静脉穿刺针,在以上环境中使用后,静脉穿刺针针尖在外裸露,接触病人血液的针尖,常常会对医护人员和废弃物处置人员造成针刺伤害,引发血源性疾病的感染与传播。 [0004] Currently, various venous catheter (infusion needle, blood transfusion needles, blood collection needles, biopsy biopsy needle, an indwelling needle, etc.) used at home and abroad are able to meet the above requirements, but there are also serious disadvantages and drawbacks: currently venipuncture needle at home and abroad, the use of the above environments, venipuncture needle tip exposed outside, the tip contacts the patient's blood, and often have medical waste disposal personnel caused by needlestick injuries, infections caused by blood-borne diseases and Communication. 另外,在临床中, 常见的输液器及输液针,在拔出静脉穿刺针后,针尖不但外露,而且,由于残留在输液器管道中的药液、血液、体液等仍然会不断外泄,滴落到环境中,同样造成对环境和其他人群的污染或感染。 In addition, in clinical common infusion and transfusion needle, pulled out after the venipuncture needle tip is not only exposed, but, due to the residual in the pipeline of liquid infusion, blood, body fluids, etc. will still continue to leak, drip fall environment, the same cause on the environment and other people of contamination or infection. 引发血源性疾病或其他疾病的传播。 Initiator spread blood-borne diseases or other diseases.

[0005] 在静脉穿刺器具中,国内外的工程技术人员做了大量的工作,设计研发了多种形式的安全静脉输液针,大多是利用机械(弹簧)力或人工方法将输液针针体(含针尖)抽拉回缩进入保护套管内的技术方案;也只能实现对针尖的防护和屏蔽,防止针刺伤害的发生, 但均不能有效的将输液(血液)管道有效截止,防止血(体、药)液的外溢和流淌,减少对环境和人体的污染和感染。 [0005] In venipuncture appliance, engineering and technical personnel at home and abroad have done a lot of work, design and development of various forms of security intravenous infusion needle, mostly using mechanical (spring) or artificial means to force the infusion needle body ( including tip) is retracted into the drawer in the aspect of the protective sleeve; only implement protection and shielding of the needle tip to prevent needle-stick injuries, but can not effectively infusion (blood) expiration conduit, preventing blood ( spills and flowing body, drugs) solution, reducing environmental and human contamination and infection.

[0006] 目前,国际上,尚没有任何一种技术方案,能够同时满足上述环境对静脉穿刺针的需求。 [0006] At present, the international community, there is no any kind of technical solutions to meet the needs of these environments venipuncture needle at the same time. 即要满足防止针刺伤害的要求,同时要防止管道内残留药液或体液外溢流淌的要求。 I.e., to meet the requirements to prevent needle stick injuries, while the residual liquid within the pipe to prevent fluid spill or flow requirements.

[0007] 我们在临床常见的静脉穿刺针,其用途有几下几种: [0007] in our common clinical venous puncture needle, its use has a few ways:

[0008] 1、笔式采血针:其结构是贯通的针管,其两端都有锋利的刃口;针管中下段固定在针座上,前端称为静脉穿刺针、后端称为集血针、集血针表面有阻血套、针管两端有保护套管。 [0008] 1, pen lancets: The structure is penetrating needle, which has a sharp edge at both ends; lower needle cannula fixed to the hub, called a venipuncture needle distal end, called the rear end of the lancet assembly , blood collection needle blood barrier sleeve surface, ends with a needle protection sleeve. 使用时,将采血针旋转固定在持针器外筒前端,实施静脉穿刺,成功后,将真空采血管插入持针器后端空腔,使集血针后端刃口穿过阻血套并贯穿刺入真空管胶塞,在负压作用下,将血液抽入采血管内;如此反复,可实现多管次血标本的采集;采血完毕,拔出静脉穿刺针,局部止血,对废弃的采血针,需要护士再次将采血针前端护套,复套在采血针外表,然后旋转针体,将采血针从持针器上取下,再将采血针丢弃在废物盒中;此操作中护士双手复套过程,由于多种原因,护士手指常常易被针尖刺伤,发生针刺伤害,引发血源性疾病的感染或传播,如丙肝、艾滋病;后果极其严重。 In use, the blood collection needle cylinder rotatably secured to the front end of the outer needle holder embodiment venipuncture, after the success of the blood collection needle is inserted into the rear end of the vacuum chamber, so that the rear end edge set lancet through the sleeve and through the blood barrier vacuum piercing plug, under negative pressure, blood is drawn into the collection vessel; and so forth, blood samples were collected in the manifold times may be implemented; blood is completed, pull out the venipuncture needle, local bleeding, the blood collection needle of the waste, the nurse needs to re-puncture needle sheath distal end, the lancet outer sleeve multiplexed, and rotating the needle, the blood collection needle is removed from the needle holder, a blood collection needle and then discarded in the waste cartridge; this operation nurse hands Resuming process, for various reasons, nurses are often susceptible to finger tip stabbed, needlestick injuries occur, causing infection or the spread of blood-borne diseases such as hepatitis C, AIDS; extremely serious consequences.

[0009] 2、静脉采血针:其结构是在静脉输液针的软管尾端针座上,连接一只集血针构成。 [0009] 2, venous blood collection needle: its structure is the trailing end of the hose in the hub of the intravenous infusion needle connected to a blood collection needle configuration. 它在使用时,也需要将集血针旋转固定在持针器外筒前端,手持静脉穿刺针对静脉实施穿刺,成功后,将真空采血管插入持针器后端空腔,使集血针刃口穿过阻血套并刺入真空管胶塞,在负压作用下,将血液吸入采血管。 In use it is also necessary to set the lancet holder rotatably secured to the outer tube distal end of the needle, holding for venipuncture vein puncture embodiment, after the success of the blood collection needle is inserted into the rear end of the vacuum chamber, so that blood collection needle blade openings through the blood barrier and penetrating the vacuum sleeve plug, the negative pressure in the suction blood collection vessels. 需要时,如此反复,可实现多管采血;采血完毕,拔出静脉穿刺针,局部止血,对废弃的采血针处置,需护士手捏集血针针座外表,然后旋转针体, 将采血针从持针器上取下,连同静脉穿刺针丢弃在废物盒中;上述过程中,由于采血软管较长,约20厘米,使静脉穿刺针及软管内的残存血液,在采血针及软管取下的过程中,血液会随处流淌,污染环境或人体,造成疾病的传播可能;目前,在临床工作中,护士及废弃物处置人员的手指也非常容易被采血针尖刺伤,因针刺伤害引发感染血源性疾病;后果极其严重。 When required, and so forth, may be multi-tube blood; blood is completed, pull out the venipuncture needle, local bleeding, the blood collection needle disposal of waste, the Nurses pinching blood collection needle holder outer and rotating the needle, the lancet removed from the needle holder, the intravenous needle discarded along with the waste cassette; the process described above, since the blood collection tube is longer, about 20 cm, venous puncture needle and the remaining blood in the tube, the blood collection needle and soft the process of removing the tube, the blood will flow everywhere, polluting the environment or the human body, may cause the spread of disease; currently in clinical work, the finger nurses and waste disposal staff is also very easy to blood collection needle stabbed, because acupuncture damage caused by the infection of blood-borne diseases; extremely serious consequences.

[0010] 根据美国国家医疗部门统计:发生在注射穿刺与采血过程的针刺伤占针刺伤害发生率的;美国联邦政府于2000年颁布《针刺安全与预防》法案:要求医疗机构必须为雇员提供安全的医疗器具;美国家职业安全卫生署制定的接触血源疾病的工作人员的操作标准,其中要求:在注射、穿刺操作规程,坚决杜绝:手取下针头、折弯针头、离断针头、复套针头护套的行为。 [0010] According to the National Health Department statistics: occurred in the injection puncture needle stick injuries and blood collection process account for the incidence of needlestick injuries; the federal government issued the "acupuncture safety and prevention" bill in 2000: the medical establishment must employees provide safe medical instruments; standard operating staff in contact with blood diseases American countries OSHA developed, which calls for: the injection, puncture procedures, and resolutely put: hand remove the needle, the needle bending, breaking away from the needle , complex sets of needle guard behavior.

[0011] 3、静脉输液针:我国临床使用的静脉输液针,结构简单,基本不具备安全保护装置(典型结构见附图1),由针尖护套、针座、静脉穿刺针、软管组成;是医护人员被针刺伤害的主要器具。 [0011] 3, intravenous infusion needle: intravenous infusion needle of clinical use, simple structure, basically do not have safety devices (see Figure 1 a typical configuration), the needle sheath, needle hub, venipuncture needle, the hose composition ; health care is a major instrument needle stick injury. 根据我国医学统计,学术杂志报道,临床护理从业人员被针刺伤害的发生率高达80%以上,危害极其严重。 According to China's medical statistics, academic magazine, clinical care practitioners are up to 80% incidence of needle stick injury, harm is extremely serious.

[0012] 综上所述,临床迫切需要一种在上述在输注药液、输血、采血、采集体液过程中,能对穿刺针进行屏蔽、有效避免针刺伤害;同时可自动对穿刺针末端以上管道截止,防止在以上环境中血液、体液、药液残留部分的外溢流淌、可消除血源性疾病感染风险的安全、可靠的静脉穿刺针器具。 [0012] In summary, the above-described urgent clinical need for a liquid infusion, blood transfusion, blood, body fluid during collection, the puncture needle can be shielded effectively prevent needle stick injury; while needle tip automatically As of the above duct, prevent blood, bodily fluids, chemical spills remaining portion flows in the above environment, to eliminate safety risks of blood-borne infections, reliable instrument venipuncture needle. 就目前,国内外尚没有任何能够以简单经济、实用安全的技术方案被公开。 For now, at home and abroad in a simple yet no economical, safe and practical technical solutions are disclosed.

(三)发明内容 (Iii) Disclosure of the Invention

[0013] 本发明就是针对上述静脉、组织腔室进行穿刺,实现输液、输血、采集标本过程所存在的不足而提出的解决方案。 Solution [0013] The present invention has been described above for puncturing the vein, tissue chambers, to achieve infusion, blood transfusion, insufficient sample collection process of the present proposed. 具有安全、可靠、简便、实用、价廉、可简化临床操作程序、提高工作效率、消除针刺伤害、防止血液、体液外溢流淌的特点;具体的说,它是一种具有穿刺针尖屏蔽、液体导管截止装置的安全型静脉穿刺针,可用于对静脉血的采集、输注药液、输血、组织标本采集和治疗的过程。 Safe, reliable, simple, practical, inexpensive, simplified clinical procedures, improve efficiency, eliminate needlestick injuries, prevent blood, body fluids spill flowing characteristics; specifically, it is a kind of puncture needle shield, liquid venipuncture catheter needle safe cutoff device can be used to collect the blood, infusion of drug solution, blood, tissue during specimen collection and treatment.

[0014] 本发明是通过以下方案实现的:一种安全型静脉穿刺针,由护套、穿刺针管、针座、 软管、弹簧、屏蔽套管、截止夹组成;其特征在于:其特征是:针管插接粘固在针座前端的中央孔内,针座后段直径缩小并与软管插接粘固;屏蔽套管套在弹簧、针管、针座、软管的外表,并将弹簧压缩在屏蔽套管前段与针座前端形成的空间内;屏蔽套管的末端与软管通过高频热合或其它方式相互粘结,保持对弹簧的压缩;离断截止夹套装在屏蔽套管的末端,离断截止夹的上下离断剪切板插入到屏蔽套管末段的上下开窗内。 [0014] The present invention is achieved by the following scheme: a safe type venipuncture needle, the sheath, the puncture needle, the needle hub, the hose, the spring, the shielding sleeve, clip off the composition; wherein: wherein : cement reduces and the needle tube inserted with the hose inserted in the center hole of the anchor distal end of the hub, the diameter of the rear hub section; shielding sleeve over the spring, needle, needle hub, the outer tube, and spring a compression space formed inside the front end of the needle shielding sleeve seat front section; end of the shielding sleeve with the hose by heat sealing or high frequency otherwise adhered to each other, maintain compression of the spring; breaking off from the clip set on the shielding sleeve end, cut off from the upper and lower clamp amputation clipboard window is inserted into the upper and lower end section of the shielding sleeve.

[0015] 针座前段两侧有一对纵向半圆突嵴,针座下段呈锥形缩小与软管插接粘固,并使针尖刃口平面与两个纵向突嵴的连线平行。 [0015] The needle hub has a pair of longitudinal sides of anterior semicircular projecting ridge, the needle hub is tapered to narrow the lower cement plug tube, tip edge and parallel to a plane connecting two longitudinal projecting ridge.

[0016] 屏蔽套管为中空结构,其前端开孔缩小,其直径等于或稍大针管外径;屏蔽套管的前段内径DO等于或稍大于弹簧的外径;屏蔽套管的中前段外侧至少有一个横向突起的扁平结构,形成操作手柄;在屏蔽套管的中前段内腔直径D等于或略大于针座前段的圆柱直径Z ;在屏蔽套管的中前段内圆侧壁,有一对半圆形纵向沟槽,其最大间距Dl等于或略大于针座前段外侧壁的两个纵向突嵴的间距Z1,且两个纵向沟槽的连线与扁平手柄的平面平行;屏蔽套管的中后段内腔直径D2等于或稍大于针座侧面两个纵向突嵴的间距Z1,在屏蔽套管的末段,管壁有两个上下对应的长约3mm的横向开窗,开窗两侧的细薄管壁形成系带; 在开窗前方的套管内壁增厚,使该处套管内径小于针座前段的两个纵向突嵴间的距离Z1。 [0016] The shielding sleeve is hollow, the front end opening out, a diameter equal to or slightly larger than the outer diameter of the needle tube; preceding an inner diameter of the shielding sleeve is equal to or slightly larger than the outer diameter DO of the spring; in the front section of at least the outside of the shielding sleeve a lateral projection with a flat structure, the operating handle is formed; in the pre-stage of the shielding sleeve or slightly greater than the lumen diameter D of the cylindrical hub diameter Z of the previous stage; shielding sleeve in a circle in the side wall front stage, there is a pair of half longitudinal circular grooves, the maximum distance Dl or slightly greater than the distance Z1 projecting longitudinal ridge of the two side walls of the outer needle hub front section and two longitudinal grooves parallel to the plane of the flat connection of the handle; cannula shield lumen diameter D2 of the rear section is equal to or slightly larger than the hub distance Z1 side two longitudinal projecting ridge in the last paragraph of the shielding sleeve, has a length of about 3mm lateral wall two windows corresponding to the upper and lower, sides of the window the thin tube wall tie; in front of the window casing wall thickening of the sleeve where the inner diameter smaller than the distance Z1 between two longitudinal projecting ridge hub front stage.

[0017] 离断截止夹由硬质材料或金属材料制成,其上下板呈U形结构,其谷底有一圆孔, 软管穿过该孔,使其套装在屏蔽套管的末端,离断截止夹的上板前端有一对带有止回齿扣的插杆,可插入下板前端的楔形孔中,形成自锁止回结构;在上下板的前端中部对应有一对弧形垫板,形成对软管的截止夹;在截止夹的外侧,上下板的前端各有一对相互交叉但又紧密接触的离断剪切板,类似于裁板机或剪刀的两个半板。 [0017] breaking off from the clip is made of a metallic material or a hard material, the upper and lower plates are U-shaped configuration, the bottom of which there is a circular hole, through which hole a hose, set it at the end of the shielded sleeve, amputation clip off the front end plate having a pair of non-return plunger teeth buckle, the front end can be inserted into the wedge hole plate, forming a self-locking structure Press; in the middle of the front end of the corresponding upper and lower plates has a pair of arcuate plate, is formed off of the hose clamp; clip off the outside of the front end of the upper and lower plates each having a pair of crossing each other in close contact but amputation clipboard, scissors or similar cutting machine plate of two half-plates. 在临床中,上述诊断、治疗过程结束时,医护人员使用手指用力捏压截止夹,离断剪切板上下相互作用,在相互接触缝处,可将屏蔽套管的开窗处残留的微小系带迅速剪切离断;同时,截止夹上下闭合,将软管内腔闭合,对软管内液体进行截止,由于上下板之间有止回齿扣与楔形孔作用,使得上述动作效果持续保持。 In the clinic, the above diagnosis, at the end of treatment, medical finger pinching off clamp force, breaking away from the shear plate vertically interaction, remaining in contact with each other at the window joints can be shielded cannula fine lines rapidly cut off from the band; the same time, the upper and lower clamp is closed off, the hose lumen are closed off on the liquid within the tube, because of the non-return tooth snap action between the upper and lower wedge aperture plate, such that the operation lasts holding . 离断后的屏蔽套管,失去了与软管的粘连,在弹簧力作用下,迅速向前移动,对穿刺针尖进行覆盖屏蔽,直到屏蔽套管的尾端缩窄部与针座外侧突嵴相互作用而停止。 From the rear of the shield casing, lost, under spring force, moves forward and fast adhesion of the hose, the shield covering the needle puncture, until the trailing end narrowing portion of the shielding sleeve with the outer hub each projecting ridge action stopped. 使屏蔽套管完全覆盖针尖而又不过度前移脱落。 The shield completely covers the needle cannula forward without unduly off.

[0018] 使用时,以常规静脉穿刺方法操作:取下前端护套,行静脉穿刺,成功后,实施静脉输注药液、静脉采血、输血、体液采集与治疗等操作。 [0018] When used in a conventional method of operating a venipuncture: Remove the distal sheath, vein puncture, after a successful implementation of liquid infusion, venous blood, blood, body fluid collection and treatment operations.

[0019] 在以上的治疗或诊断结束时,将本发明的离断截止夹用力按压,使离断截止夹对屏蔽套管开窗处的连接系带进行剪切离断,同时将软管挤压截止,齿扣插杆与楔形孔作用, 保持以上动作,可实现将软管截止封闭,由于屏蔽套管离断、脱离了软管的牵拉,在弹簧作用力将其前移,把穿刺针屏蔽起来。 [0019] At the end of treatment or diagnosis of the above, the present invention will be broken off from the clip pushing down the clamp connection from breaking off tether shield casing window at a shear amputation, while squeezing the hose pressure cutoff, the teeth snap action plunger and the wedge hole, holding the above operation, closing off the hose can be achieved, since the shield casing broken away, pulling out of the hose, the spring force it forward, the puncturing needle shield up. 达到消除针刺伤害、防止血液、体液或药液外溢流淌的作用,减少或消除血源性疾病的传播,消除医护人员被针刺伤害的危险。 To eliminate needle stick injury, prevent blood, body fluid or flowing liquid spills, reducing or eliminating the spread of blood-borne diseases, medical eliminate the risk of needle stick injury.

[0020] 由于本发明采用了在静脉穿刺针软管外套装屏蔽套管、内置弹簧和尾端安装截止离断夹的结构,使得本发明具有以下特点: [0020] Since the present invention employs a mounting structure of breaking off from the clamp in venipuncture needle cannula shield tube outer package, innerspring and trailing end, so that the present invention has the following characteristics:

[0021] 1、屏蔽套管为以柔性透明管,与手柄一体,外置于软管外表,不会影响静脉穿刺针的局部固定,也不增加病人的不舒适感;目前国内外的多种安全静脉针采用的都是硬质保护套管,在静脉穿刺针进入局部血管后,保护套管在针柄尾部上翘,与体表组织形成一定夹角而难以固定,对静脉穿刺针会有严重影响,它的移动会牵扯到静脉穿刺针在静脉血管内的位置,常常造成血管内皮的穿破; [0021] 1, the shielding sleeve is a flexible transparent tube, integral with the handle, external to the outer tube, will not affect the local fixed venipuncture needle, does not increase the discomfort of the patient; the current variety of domestic and safety venous needle are used in hard protective sleeve, following intravenous needle into the partial blood vessel, the needle protection sleeve shank upturned tail, and difficult to fix a certain angle to the tissue surface, will venipuncture needle seriously affected, it will move to the position of the vein needle involve intravenous blood vessels, often resulting in perforation of the vascular endothelium;

[0022] 2、本发明采用的柔性透明屏蔽套管,将弹簧压缩在针座与套管之间,并以高频热合方式(或其它粘结方式),将屏蔽套管与液体软管粘接,并以外装的离断截止夹作为安全特性的启发、限制、自锁装置。 [0022] 2, a flexible transparent shield casing employed in the present invention, the spring is compressed between the needle holder and the cannula, and a high-frequency heat sealing method (or other bonding means), the shield sleeve and the hose viscous liquid then, outside the package and breaking off from a clamp inspired security features, limitations, self-locking device. 使得本发明具有在截止软管内药液、体液或血液流动的同时, 可将屏蔽套管前移,完全覆盖静脉穿刺针。 So that while the present invention has a chemical off the hose, body fluids or blood flow may be forward shield sleeve completely covers the venipuncture needle. 可以实现一步完成对静脉穿刺针的防护和对软管内液体的截止,可消除针刺伤害的发生,避免血液、药液、体液对医护人员和环境的污染, 减少疾病的传播; Protection may be achieved in one step of the venous puncture needle and the cut-off of the liquid within the hose, to eliminate needle stick injuries occur, to avoid blood, chemical, bodily fluid contamination of medical personnel and the environment, to reduce the spread of the disease;

[0023] 3、由于本发明型采用了在软管及屏蔽套管末端外套装离断截止夹,该离断截止夹独特的止回齿扣插杆与楔形孔结构,形成对称的自动闭锁结构,使得在静脉穿刺(输注药液、输血、采血、治疗)结束后,只须单手使用拇指食指按压截止夹,即可迅速剪切离断屏蔽套管系带与软管的连接,解除屏蔽套管对弹簧的压缩限制,使弹簧释放,在弹性力作用下, 屏蔽套管前移,将针尖屏蔽;同时,截止夹将软管挤压闭合截止,上述动作一次完成,可减轻护士劳动,提高工作效率。 [0023] 3, since the present invention adopts the automatic latching type package structure and an outer shield tube cannula tip broken off from the clip, the clip from breaking off the non-return tooth buckle unique plunger and the wedge hole structure, a symmetrical , so that after venipuncture (drug solution infusion, blood transfusion, blood collection, treatment) is completed, only one hand thumb index finger off clamp, the shield can be quickly cut off from the hose connecting sleeve lacing of lift shielding sleeve for limiting the compression spring, the spring is released, under an elastic force, the shielding sleeve, advances the needle shield; while squeezing off the hose clamp is closed off, once the completion of the operation, reduce labor nurses ,Improve work efficiency.

(四)附图说明 (Iv) Brief Description of Drawings

[0024] 图1是常见的普通型静脉穿刺针的整体结构示意图; [0024] FIG. 1 is a schematic view of the overall structure of a common type of ordinary vein puncture needle;

[0025] 图2是本发明一种安全型静脉穿刺针的分解构示意图; [0025] FIG. 2 of the present invention is a safe intravenous needle schematic partial deconstruction;

[0026] 图3是本发明一种安全型静脉穿刺针的针座的结构示意图; [0026] FIG 3 A needle holder of the present invention is a safe intravenous puncture needle structural diagram;

[0027] 图4是本发明一种安全型静脉穿刺针的屏蔽套管的结构示意图; [0027] FIG. 4 is schematic structural view of the present invention is a safe type venipuncture cannula needle shield;

[0028] 图5是本发明一种安全型静脉穿刺针的离断截止夹的结构剖视图; [0028] FIG. 5 of the present invention is a safe intravenous puncture needle type cross-sectional view cut off from the clip structure;

[0029] 图6是本发明一种安全型静脉穿刺针的整体组装结构示意图; [0029] FIG. 6 is a diagram showing the overall structure of a safety assembly of the invention venipuncture needle;

[0030] 图7是本发明一种安全型静脉穿刺针在使用后,启动安全装置后的整体结构示意图。 [0030] FIG. 7 of the present invention is a safe intravenous needle after use, a schematic overall configuration of the safety device after the start.

(五)具体实施方式 (E) Detailed Description

[0031] 图1是传统的静脉输液针,静脉穿刺针Al与针座粘固,并借助于软管A3的另一端与接口座A4连接,在使用时(静脉采血、输液、输血、体液抽取等治疗)过程中,由于穿刺针的连接软管较长,约20厘米,前端的静脉穿刺针及软管内的残存血液(输血或采血过程), 药液或体液(手术治疗过程)不能被排出,在上述过程结束时,血液、药液和体液就会随处流淌,污染环境或人体;由于静脉针尖外露,由于多种原因,护士及废弃物处置人员的手指也非常容易被针尖刺伤,存在针刺伤害风险;后果极其严重。 [0031] FIG. 1 is a conventional intravenous infusion needles, intravenous needle hub cement and Al, and A3 by means of the hose is connected to the other end of the interface housing A4, when using (venous blood, infusion, blood transfusion, fluid extraction etc. treatment) process, since the puncture needle connected to the longer tube, about 20 cm, the distal end of the venous puncture needle and the remaining blood (or blood transfusion process within the hose), liquid, or fluid (surgical treatment) can not be discharge at the end of this process, blood, liquid and body fluids will flow everywhere, polluting the environment or human; due to venous needle exposed, for various reasons, finger nurses and waste disposal staff is also very easy to tip stabbed, there is the risk of needle-stick injuries; extremely serious consequences.

[0032] 图2是本发明一种安全型静脉穿刺针的整体结构分解示意图,由图可知,本发明一种安全型静脉穿刺针是由以下部分组成:护套0、针管1、、针座2、软管3、弹簧4、屏蔽套管5、离断截止夹6。 [0032] FIG. 2 is an overall structure of a security type according to the present invention venipuncture needle exploded schematic figure shows, the present invention is a safe intravenous needle type is composed of the following components: a sheath 0, 1 ,, needle hub 2, the hose 3, a spring 4, the shielding sleeve 5, broken off from the holder 6. 护套0为一透明的盲管,可与屏蔽套管5的前端插接;针管1的前端有锋利的刃口la,形成静脉穿刺针;针座2为管状结构,前段外表有一对纵向突嵴2a,前端有开孔2b,其孔径与针管1直径配合并将针管1粘固在孔内;软管3为一无色透明的柔性管道,为输送药液、血液、体液的通道,其一端与针座2后端插接粘固,另外一端则可与输注装置连接;弹簧4是由不锈钢材料制成的压簧,其长度大于针管1的长度;屏蔽套管5是以柔性材料制成的透明中空管,其前端口部管壁缩小为5a,其开口直径等于或大于针管1的外径;屏蔽套管5的前段外侧至少有一个外展翼片,形成操作手柄恥,在屏蔽套管5的下段, 有一对上下开窗5d,开窗两侧的细薄管壁形成连接系带k ;离断截止夹6是一个具有自锁止回功能的剪切离断截止夹,它可以是硬质材料或金属材料制成。 0 is a transparent sheath blind tube, the sleeve 5 and the front end shield plug; needle cannula 1 has a distal end sharp edge La, venous puncture needle; needle holder 2 is a tubular structure, a preceding pair of longitudinal outer projections ridge 2a, 2B distal end having an opening, a pore size diameter of the needle cannula 1 and the needle cannula 1 with cement in the bore; hose 3 as a colorless and transparent flexible tubing for conveying liquid, blood, body fluid passage, which one end of the cement plug rear hub 2, the other end can be connected to the infusion device; spring compression spring 4 is made of stainless steel having a length greater than the length of the needle tube 1; shielding sleeve 5 is of a flexible material made of a transparent hollow tube, a front wall portion is reduced to port 5a, an opening diameter equal to or greater than the outer diameter of the needle tube 1; anterior outer shielding sleeve 5 has at least one outer sheet swoop, the operating handle is formed shame, in lower section 5 of the shielding sleeve, a pair of upper and lower window 5D, thin wall sides of the window is formed with a connection line K; holder 6 is cut off from a back having a self-lock function is turned off cut off from the clamp , which may be made of a metallic material or a hard material.

[0033] 图3是本发明一种安全型静脉穿刺针的针座2结构示意图。 [0033] FIG. 3 is a schematic structure of a hub 2 safe intravenous puncture needle of the present invention. 参见图3-①和图3-②,针座2呈圆柱状,其外径为Z,其前端正中有一贯通孔加,其孔径等于或大于针管1的外径,针座2前段的外侧表面有一对纵向突嵴2a,其间距为Zl ;两突嵴连线的水平方向与针管刃口方向一致(结合图2);针座2后段外径缩小,与软管插接粘固(结合图2)。 Referring to FIGS 3-① and 3-②, cylindrical hub 2, an outer diameter Z, the tip having a middle through holes plus a pore size equal to or greater than the outer diameter of the needle tube 1, the outer needle hub front stage 2 a pair of longitudinal surface projecting ridge 2a, a pitch is Zl; consistent with two projecting ridge connection needle horizontal direction edge direction (in conjunction with FIG. 2); the outer diameter of the needle seat 2 narrow rear section, and the hose connector cement ( in conjunction with FIG. 2).

[0034] 图4是本发明一种安全型静脉穿刺针的屏蔽套管5的结构示意图。 [0034] FIG. 4 is a schematic structural diagram of a security type 5 venipuncture needle cannula shield of the present invention. 参见图4-①、 图4-②可知,屏蔽套管5是以柔性透明材料制成的中空管,其前端开孔管壁缩小为fe,其开 Referring to FIG. 4-①, seen in FIG. 4-②, the shielding sleeve 5 is made of a hollow tube of flexible transparent material, which is reduced to Fe distal wall opening, which opening

6孔直径等于或大于针管1的外径;屏蔽套管5的前段内径DO等于或稍大于弹簧4的外径; 屏蔽套管5的中前段两侧至少有一个外展翼片,成为操作手柄fe ;在屏蔽套管5的中前段内腔直径D等于或略大于针座2前段的圆柱直径Z ;在屏蔽套管5的中前段内圆侧壁,有一对半圆形纵向沟槽5c,其最大间距Dl等于或略大于针座2前段外侧壁的两个纵向突嵴加的间距Z1,且两个纵向沟槽5c的连线与扁平手柄5c的平面平行;屏蔽套管5的中后段内腔直径D2等于或稍大于针座2侧面两个纵向突嵴加的间距Zl,在屏蔽套管5的末段,管壁有两个上下对应的长约3mm的横向开窗5d,开窗5d两侧的细薄管壁形成系带k ;在开窗5d前方的套管内壁增厚,使该处套管内径5f小于针座2前段的两个纵向突嵴加间的距离Zl。 6 is equal to or greater than the outer diameter of the pore diameter of the needle tube 1; inner diameter of the front section 5 of the shielding sleeve DO is equal to or slightly greater than the outer diameter of the spring 4; anterior sides of the shield sleeve 5 has at least one outer sheet wings to become operating handle Fe; shielding sleeve 5 in the pre-stage or slightly greater than the lumen diameter D hub diameter cylinder preceding the Z 2; in a circle in the side wall of the pre-stage shielding sleeve 5, a pair of semi-circular longitudinal grooves 5C, the maximum distance Dl equal to or slightly greater than the pre-stage hub 2 projecting ridge pitch Z1 plus two longitudinal outer wall, and a connection with two longitudinal flat parallel to the plane of the handle 5c and 5c of grooves; 5 after the shielding sleeve segment the lumen diameter D2 is equal to or slightly greater than 2 two longitudinal sides of the needle hub projecting ridge pitch Zl added, in the last paragraph of the shielding sleeve 5, there are two vertical wall corresponding to the lateral length of about 3mm 5D windows, open thin window 5d is formed on both sides of the wall tie K; 5d front window in the casing wall thickening, so that the inner diameter of the sleeve 5f where less than the distance between the hub 2 Zl preceding stage plus two longitudinal projecting ridge. (结合图2)。 (In conjunction with FIG. 2).

[0035] 图5是本发明一种安全型静脉穿刺针的离断截止夹6的结构示意图:离断截止夹6由硬质材料或金属材料制成,其上下板之间呈U型结构,在其谷底有一圆孔;在其上板外缘与下板对应的方向有一对具有止回齿扣的插杆6a,可插入到下板中对应的楔形孔6b中, 形成自锁止回结构;在上下板的前端对应各有一个弧形垫板6c,随着上下板的闭合靠拢, 两个弧形垫板6c可形成夹闭软管3的截止夹(结合图6);在截止夹的外侧的上下板前端各有一对相互交叉但又可紧密接触的离断剪板6d和6cf (它们类似于裁板机或剪刀的两个裁刀)。 [0035] FIG. 5 is a schematic structural diagram 6 of the present invention is safe venipuncture needle is broken off from the folder: cut-off clip 6 is made from a hard material or a metal material, which U-shaped structure between the upper and lower plates, there is a circular hole in its bottom; structure having a pair of plunger return check teeth buckle 6a, 6b can be inserted into the wedge hole corresponding to the lower plate in a direction in which the lock is formed from an outer edge of the upper plate and the lower plate corresponding to ; corresponding to the front end of upper and lower plates each have an arcuate plate 6c, as the closer the upper and lower closure plate, two arcuate clamping pads 6c may be formed off the hose clamp 3 (in conjunction with FIG. 6); the closing clip the front end of the upper and lower outer plates have a pair of intersecting each other in close contact but turn amputation shearing 6d and 6cf (which are similar to the Conference board two cutter or scissors).

[0036] 图6是本发明一种安全型静脉穿刺针的整体结构示意图;由图可知:穿刺针管1 粘接在针座2前端内孔中,刃口端为静脉穿刺针尖Ia ;针座2的后端插接并粘固于软管3的一端;弹簧4外套在穿刺针外表,屏蔽套管5外套在弹簧4、针管1、针座2和软管3的外表, 并将弹簧4压缩在屏蔽套管5内孔的前端与针座2前端及针管1形成的空间内;屏蔽套管5的末端与软管3表面通过高频热合粘结(也可以通过其他方式粘结),以保持对弹簧4的压缩;护套0覆盖在屏蔽套管5的前端,对穿刺针尖Ia进行保护;(结合图3、图4)针座2 前段的侧面两个突嵴加插入到屏蔽套管5前中段内腔的纵向沟槽5c中,对针尖刃口Ia方向实现水平定位。 [0036] FIG. 6 is an overall schematic structure of a present invention venipuncture needle safe; understood from FIG: 1 puncture needle tube 2 is bonded to the front end of the bore in the hub, the blade tip end of venipuncture Ia; hub 2 the rear end of the plug and is adhered to the end of the hose 3; puncture needle spring 4 in the outer jacket, the shielding spring 4 in the outer sleeve 5, a needle tube, an outer tube 2 and the hub 3, and the compression spring 4 shielding sleeve 5 in the space within the front end of the needle hub bore 2 and the distal end of the needle tube 1 is formed; shielding sleeve end surface 3 and the hose 5 by high-frequency thermal bonding (bonding may be by other means), to holding compression spring 4; 0 a sheath covering the front end of the shielding sleeve 5, the puncture needle protection Ia; (in conjunction with FIG. 3, FIG. 4) side of the hub 2 preceding two projections is inserted into the shielding sleeve ridge plus longitudinal groove 5c 5 before the middle lumen, the tip edge of the horizontal positioning achieved Ia direction. 离断截止夹6套装在屏蔽套管5的末端,截止夹扣合在屏蔽套管5后段的上下开窗5d内。 Broken off from the holder 6 fitted over the end of the shielded sleeve 5, engaging in the cut-off clip window 5d vertical section 5 after the shielding sleeve. 软管3和屏蔽套管5都是柔性材料制成的透明管道,可以弯曲,便于临床操作,不会影响静脉穿刺针在血管内的固定。 Shielding sleeve 3 and the hose 5 are transparent pipe made of a flexible material, can be bent, for clinical operation, it does not affect the venipuncture needle is fixed within the vessel.

[0037] 以上构成本发明一种安全型静脉穿刺针的整体结构。 [0037] which constitutes one or more safe venipuncture needle overall configuration of the present invention.

[0038] 图7是本发明一种安全型静脉穿刺针在临床使用后,穿刺针体结构毁型、针管1被屏蔽套管5完全覆盖,得到完全防护;软管3被截止夹完全闭合,使残留液体、血液或体液不能外溢流淌,得到有效控制的结构示意图。 [0038] FIG. 7 is a safe intravenous needle of the present invention in the clinical use, the puncture needle type structure destroyed, the needle 1 is entirely covered with the shielding sleeve 5, to give full protection; hose clip 3 is completely closed off, the residue fluid does not spill flowing blood or body fluids, to obtain effective control structure diagram. 由图可知,当在临床使用(输血、输注药液、 采血、采集体液标本、穿刺治疗)结束时,用手指捏压离断截止夹6,使其上下板向内靠拢闭合,可将屏蔽套管5开窗5d处两侧的细薄管壁系带k被离断剪板6d和6cf剪切离断,同时将软管3的内腔挤压闭合造成截止。 The figure shows that when in clinical use (transfusion, infusion liquid, blood, body fluid specimens collected, puncture treatment) is completed, amputated finger pinching off clip 6, so that the upper and lower closure plates move inward, the shield may be both sides of the window casing 5 at the thin wall 5d strap k is from shearing off the shear 6cf amputation and 6d, while the lumen of the hose 3 caused by the pressing is closed off. 由于屏蔽套管5失去了软管3的牵连,在弹簧4作用力下,迅速前移,将穿刺针尖Ia完全覆盖,直至屏蔽套管5后段内壁的缩窄部5f与针座2 前端外侧壁的纵向突嵴加相互阻挡限制而停止;使屏蔽套管5完全覆盖针尖Ia而又不过度前移脱落。 Since the shielding sleeve 5 lost the hose 3 is implicated, in the force of the spring 4, fast forward, completely covers the puncture needle Ia, until the front end of said inner wall 2 of the outer narrowing portion 5f and the rear sleeve 5 shield the needle hub projecting longitudinal ridge wall plus another limit stop barrier; the shield completely covers the needle cannula 5 Ia forward without unduly off. 如此可消除医护人员被针刺伤害的风险。 This process eliminates the risk of staff needle stick injury. (结合图5和图6),由于软管3内腔被截止夹闭合,由于上下板之间有止回齿扣6c与楔形孔6(^作用,使得上述动作的截止效果持续保持,使得软管内药液、血液或体液不能外溢流淌,消除了病原体外溢污染与传播的机会,减少血源性疾病的发生与传播。[0039] 本发明所描述的技术方案,在本专业技术人员通过变形所能够实现的任何类似变形,都将落入本发明的技术范畴。 (In conjunction with FIG. 5 and FIG. 6), since the lumen of the hose 3 is closed off clip, because the non-return tooth buckle 6c and the wedge hole 6 (^ acting between the upper and lower plates, such that the operation lasts kept off, so that the soft liquid tube, flowing blood or body fluid can not overflow, eliminating pollution and opportunistic pathogens spillover propagation, reduce the incidence and spread of blood-borne diseases. [0039] the aspect described in the present invention, those skilled in the art by modification any such deformation can be achieved, it will come under the technical scope of the invention.

Claims (4)

  1. 1. 一种安全型静脉穿刺针,由护套(0)、针管(1)、针座(2)、软管(3)、弹簧(4)、屏蔽套管(5)、离断截止夹(6)组成;其特征是:针管(1)插接粘固在针座(¾前端的中央孔Ob) 内,针座(2)后段直径缩小并与软管(3)插接粘固;屏蔽套管(5)套在弹簧、针管(1)、 针座O)、软管(3)的外表,并将弹簧(4)压缩在屏蔽套管(5)前段与针座前端形成的空间内;屏蔽套管(5)的末端与软管(3)通过高频热合或其它方式相互粘结,保持对弹簧(4)的压缩;离断截止夹(6)套装在屏蔽套管的末端,离断截止夹的离断剪切板(6d、6cf)插入屏蔽套管(5)末段的上下开窗(5d)内。 A safe intravenous needle, by a sheath (0), needle (1), the needle hub (2), the hose (3), a spring (4), the shielding sleeve (5), cut off from the clamp (6) the composition; characterized in that: the syringe (1) the cement plug within the needle holder (¾ front end of the center hole Ob), the needle hub (2) and the reduced diameter section of the hose (3) cement plug ; shielding sleeve (5) set in the spring, the needle tube (1), the needle hub O), the hose (3) appearance, and the spring (4) compressing the needle seat is formed in the front end of the shielding sleeve (5) of the front stage space; shielding sleeve (5) of the hose end (3) bonded by high-frequency welding or other means to each other, holding the compression spring (4); amputation off clamp (6) of the shielding sleeve sleeved end, from breaking away from the shear plate (6d, 6cf) cut-off clamp is inserted vertically shielding sleeve window (5d) inside (5) of the last paragraph.
  2. 2.根据权利要求1所说的一种安全型静脉穿刺针,其特征在于:针座(¾前段两侧有一对纵向半圆突嵴(¾),针座(¾下段呈锥形缩小与软管C3)插接粘固,并使针尖刃口(Ia)平面与两个纵向突嵴Oa)的连线平行。 1 according to said one safe intravenous needle claim, wherein: a pair of semicircular protrusions longitudinal ridge (¾), the needle hub the needle hub (¾ anterior sides (¾ lower conical narrowing the hose C3) the cement plug, and the tip edge (Ia) plane and two longitudinal projecting ridge Oa) in parallel connection.
  3. 3.根据权利要求1所说的一种安全型静脉穿刺针,其特征在于:屏蔽套管(5)为中空结构,其前端开孔(5a)缩小,其直径等于或稍大针管⑴外径;屏蔽套管(5)的前段内径DO 等于或稍大于弹簧的外径;屏蔽套管(5)的中前段外侧至少有一个横向突起的扁平结构,形成操作手柄(5b);在屏蔽套管(5)的中前段内腔直径D等于或略大于针座(2)前段的圆柱直径Z ;在屏蔽套管(5)的中前段内圆侧壁,有一对半圆形纵向沟槽(5c),其最大间距Dl等于或略大于针座(2)前段外侧壁的两个纵向突嵴Oa)的间距Z1,且两个纵向沟槽(5c)的连线与扁平手柄(5c)的平面平行;屏蔽套管(5)的中后段内腔直径D2等于或稍大于针座(2)侧面两个纵向突嵴Oa)的间距Z1,在屏蔽套管(5)的末段,管壁有两个上下对应的长约3mm的横向开窗(5d),开窗(5d)两侧的细薄管壁形成系带(5e);在开窗(5d According to claim safe intravenous said one needle 1, wherein: the shielding sleeve (5) is hollow, the front end openings (5a) reduced, a diameter equal to or slightly larger than the outer diameter of the needle tube ⑴ ; shielding sleeve (5) pre-stage inner diameter equal to or slightly greater than the outer diameter DO of the spring; in the front section outer shielding sleeve (5) has at least one lateral projection of the flat structure, forming an operating handle (5B); the shielding sleeve (5) in the pre-stage or slightly greater than the lumen diameter D (2) a cylindrical hub diameter Z of the front stage; in a circle in front section of the inner shield sleeve sidewall (5), there is a pair of semicircular longitudinal groove (5c ), which is equal to or slightly greater than the maximum spacing Dl hub (2) of the preceding two longitudinal outer side wall ridge projecting Oa) pitch Z1, and two longitudinal grooves (5c) and the flat handle connection (5c) of a plane parallel; shielding sleeve (5) in the rear section of the lumen diameter D2 is equal to or slightly larger than the hub (2) two longitudinal side projecting ridge Oa) distance Z1, the shielding sleeve (5) of the last paragraph, the wall two vertical lateral about 3mm corresponding window (5d), window (5d) formed on both sides of the thin wall tie (5E); the window (5d )前方的套管内壁增厚,使该处套管内径(5f)小于针座(¾前段的两个纵向突嵴Oa)间的距离 Distance) in front of the casing wall thickening, so that where the inner diameter of the sleeve (5F) is smaller than the needle hub (¾ preceding two longitudinal projecting ridge Oa) between
  4. 4.根据权利要求1所说的一种安全型静脉穿刺针,其特征在于:离断截止夹(6)由硬质材料或金属材料制成,其上下板呈U形结构,其谷底有一圆孔,软管C3)穿过该孔,使其套装在屏蔽套管(5)的末端,离断截止夹(6)的上板前端有一对带有止回齿扣的插杆(6a),可插入下板前端的楔形孔(6b)中,形成自锁止回结构;在上下板的前端中部对应有一对弧形垫板(6c),形成对软管C3)的截止夹;在截止夹的外侧,上下板的前端各有一对相互交叉但又紧密接触的离断剪切板(6d、6cf)。 1 according to said one safe intravenous needle claim, wherein: breaking off from the clamp (6) is made of a metallic material or a hard material, the upper and lower plates are U-shaped structure, which has a circular bottom the front end of the upper plate aperture, the hose C3) through the aperture, so that the shielding sleeve fitted over the end (5), breaking off from the clamp (6) with a pair of teeth with a non-return snap plunger (. 6A), can be inserted into the lower plate distal wedge hole (6b) formed back from the locking structure; in the middle of the front end of the corresponding upper and lower plates has a pair of arcuate backing plate (6C), formed off hose C3) is sandwiched; clamp off the the outer, upper and lower plates of the front end of each pair of mutually intersect but closely contact amputation clipboard (6d, 6cf).
CN 201110231682 2011-08-12 2011-08-12 Safety vein puncture needle CN102284104B (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102783953A (en) * 2012-08-17 2012-11-21 张亚平 Novel pen type safe blood taking needle
WO2013023435A1 (en) * 2011-08-12 2013-02-21 Zhang Yaping Secure vein puncture needle
CN102940498A (en) * 2012-10-18 2013-02-27 青岛大学医学院附属医院 Venous blood collection needle with cut-off protectors
CN103127580A (en) * 2013-03-14 2013-06-05 苏州大学 Singlehanded safety indwelling needle

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10004533B2 (en) 2014-09-30 2018-06-26 Fateh Entabi Surgical tools and system for safely accessing body cavities and methods of using the same

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5746215A (en) * 1996-11-01 1998-05-05 U.S. Medical Instruments, Inc. IV infusion or collection device with extendable and retractable needle
US5779679A (en) * 1997-04-18 1998-07-14 Shaw; Thomas J. Winged IV set with retractable needle
US20030078540A1 (en) * 2001-10-24 2003-04-24 Becton, Dickinson And Company Retractable needle assembly
US20030181871A1 (en) * 2002-03-19 2003-09-25 Becton, Dickinson And Company Needle assembly
CN202173450U (en) * 2011-08-12 2012-03-28 张亚平 Safe venous puncture needle

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4464540B2 (en) * 2000-07-18 2010-05-19 テルモ株式会社 Puncture tool
JPWO2006123645A1 (en) * 2005-05-19 2008-12-25 ニプロ株式会社 Winged needle assembly
CA2669349A1 (en) * 2006-09-28 2008-04-03 Morgan Meditech Inc. Intravenous cannula assembly
US7914501B2 (en) * 2007-01-05 2011-03-29 Nipro Corporation Indwelling needle
CN101239209A (en) * 2008-03-17 2008-08-13 张亚根 Disposable safety vein puncture needle
US8439870B2 (en) * 2008-09-10 2013-05-14 B. Braun Medical Inc. Safety needle assembly and methods
CN102284104B (en) * 2011-08-12 2014-06-04 张亚平 Safety vein puncture needle

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5746215A (en) * 1996-11-01 1998-05-05 U.S. Medical Instruments, Inc. IV infusion or collection device with extendable and retractable needle
US5779679A (en) * 1997-04-18 1998-07-14 Shaw; Thomas J. Winged IV set with retractable needle
US20030078540A1 (en) * 2001-10-24 2003-04-24 Becton, Dickinson And Company Retractable needle assembly
US20030181871A1 (en) * 2002-03-19 2003-09-25 Becton, Dickinson And Company Needle assembly
CN202173450U (en) * 2011-08-12 2012-03-28 张亚平 Safe venous puncture needle

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013023435A1 (en) * 2011-08-12 2013-02-21 Zhang Yaping Secure vein puncture needle
CN102783953A (en) * 2012-08-17 2012-11-21 张亚平 Novel pen type safe blood taking needle
CN102940498A (en) * 2012-10-18 2013-02-27 青岛大学医学院附属医院 Venous blood collection needle with cut-off protectors
CN103127580A (en) * 2013-03-14 2013-06-05 苏州大学 Singlehanded safety indwelling needle
CN103127580B (en) * 2013-03-14 2014-11-05 苏州大学 Singlehanded safety indwelling needle

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