CN105327419B - It is a kind of suitable for intravenous infusion needle and the needle head structure of vein blood taking needle - Google Patents

It is a kind of suitable for intravenous infusion needle and the needle head structure of vein blood taking needle Download PDF

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Publication number
CN105327419B
CN105327419B CN201510337761.0A CN201510337761A CN105327419B CN 105327419 B CN105327419 B CN 105327419B CN 201510337761 A CN201510337761 A CN 201510337761A CN 105327419 B CN105327419 B CN 105327419B
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needle
self
handle
bracket
needle handle
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CN105327419A (en
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蔡根顺
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Hong Mingwan
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Hong Mingwan
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Abstract

本发明涉及静脉输液针及静脉采血针，尤其是涉及一种适用于静脉输液针及静脉采血针的针头结构,包括塑料软管及安装在塑料软管端部的针头，针头包括针尖和针柄，所述塑料软管的中部固定安装有自毁支架，自毁支架上成型有储存针头的储针腔；针头以其尾端为基点翻转并嵌入所述储针腔时，针头尾端的塑料软管对折并封闭塑料软管的输液孔；储针腔内设置有卡住所述针头并阻止其退出的挡片。因此，本发明能够在中途暂时保存针头，使其不受细菌感染，并能在自毁时防止药液泄漏，操作简便，且不存在安全隐患。

The present invention relates to intravenous infusion needles and venous blood collection needles, in particular to a needle structure suitable for intravenous infusion needles and venous blood collection needles, including a plastic hose and a needle installed at the end of the plastic hose. The needle includes a needle point and a needle handle , the middle part of the plastic hose is fixed with a self-destruct bracket, and a needle storage cavity for storing needles is formed on the self-destruct bracket; The tube is folded in half and the infusion hole of the plastic hose is closed; the needle storage cavity is provided with a baffle that blocks the needle and prevents it from withdrawing. Therefore, the present invention can temporarily save the needle in the middle, so that it is not infected by bacteria, and can prevent the leakage of medicinal liquid when self-destructing. The operation is simple and there is no potential safety hazard.

Description

It is a kind of suitable for intravenous infusion needle and the needle head structure of vein blood taking needle
Technical field
The present invention relates to intravenous infusion needles and vein blood taking needle, are suitable for intravenous infusion needle and vein more particularly, to one kind The needle head structure of blood taking needle.
Background technique
ZL 201210093841.2 discloses a kind of disposable anti-needle thorn vein blood taking needle, including needle shield, vein Needle tubing, needle handle, small hose, needle stand, Paracentesis needle holder, blood-collecting needle tube, rubber sheath and anti-needle pierce sheath, after needle is pulled out in use, only Needle handle need to be pulled back to anti-needle thorn sheath, i.e., the avoidable needle after with blood surprisingly stabs other people and causes to infect, to enhance Protection to medical staff.
However, the medical fluid in needle tubing cannot be prevented to continue to flow out when its self-destruction, cause to trickle down on the ground, it is easy to breed Bacterium impacts the health of hospital, and there are security risks.
It need to point out, encounter emergency situations in tuck, for example, the blood vessel of children is meticulous, when needing to change an arm, doctor Shield personnel can not one hand operate, it usually needs the hose of syringe needle tail end is vised with pliers and (medical fluid is prevented to pass through), and is made Syringe needle contacts desktop upwards to avoid it, causes germ contamination；It carries out disinfection again to patient again, after the operation such as binding, then pine It opens pliers and re-operates syringe needle and be infused.
In addition, needle handle in the market, which usually mixes, color masterbatch, the reason is that being used to identify the model of needle point, however, medical fluid Needle point must be entered by needle handle, the color masterbatch mixed makes needle handle, and there are security risks.
Summary of the invention
It is safe and reliable that the purpose of the present invention is to provide one kind, and practicability is good, can temporarily save syringe needle in midway, make it Not by bacterium infection, liquid leakage is prevented in self-destruction, suitable for intravenous infusion needle and the needle head structure of vein blood taking needle.
To achieve the above object, the present invention provides the following technical scheme that
It is a kind of suitable for intravenous infusion needle and the needle head structure of vein blood taking needle, including plastic flexible pipe and to be mounted on plastics soft The syringe needle of tube end, syringe needle include needle point and needle handle, and self-destruction bracket, self-destruction bracket are fixedly installed in the middle part of the plastic flexible pipe On form storage syringe needle storage needle cavity；When syringe needle is overturn as basic point using its tail end and is embedded in the storage needle cavity, syringe needle tail end Plastic flexible pipe doubling and the infusion hole for closing plastic flexible pipe；The gear for blocking the syringe needle and it being prevented to exit is provided in storage needle cavity Piece.
The left side of the storage needle cavity is needle point slot, right side is needle handle slot；The baffle is arranged in needle point slot, the needle handle It is interference fitted with needle handle slot two sidewalls, the front end of needle handle is against on the step surface of needle handle slot；Fin on the needle handle is single-blade Or double-vane.
The top of the needle handle slot to the left, extend obliquely upward to form temporary tank；The two sides cell wall of temporary tank can hold needle tightly Handle front.
The lower part of the self-destruction bracket is provided with the interconnecting piece passed through for the plastic flexible pipe, and interconnecting piece is provided with through-hole； The plastic flexible pipe passes through the through-hole and is bonded as one with self-destruction bracket.
The two sides of the self-destruction bracket right end form the guide pin that storage needle cavity is embedded in convenient for syringe needle.
The two sides up and down of the needle handle tail end are provided with inclined-plane, and the syringe needle tail end between upper and lower inclined-plane forms " one " word Shape.
The step surface is inclined surface；Plastic flexible pipe degree of tautness < needle handle front end that needle handle front end is against inclined surface top is supported Plastic flexible pipe degree of tautness in inclined surface lower part.
The rack gear for preventing needle handle front end from sliding is provided on the step surface.
The needle handle is made of colourless transparent plastic；The mark of mark needle point model is provided on the self-destruction bracket.
Therefore, the present invention can temporarily save syringe needle in midway, make it not by bacterium infection, and can prevent medicine in self-destruction Liquid leakage is suitable for intravenous infusion needle and vein blood taking needle, easy to operate, and security risk is not present.
Needle handle of the invention is made of colourless transparent plastic, without worrying mixing for color masterbatch, improves safety；It is corresponding , it is provided with the mark of mark needle point model on self-destruction bracket, there are enough positions to mark needle point model on self-destruction bracket Know, had not only avoided influence of the color masterbatch to medical fluid, but also do not influence label.
Detailed description of the invention
Fig. 1 is schematic diagram of the invention.
Schematic diagram when Fig. 2 is self-destruction of the present invention.
Cross-sectional view when Fig. 3 is self-destruction of the present invention.
Fig. 4 is self-destruction support schematic diagram of the invention.
Fig. 5 is self-destruction bracket cross-sectional view of the invention.
Fig. 6 is the cross-sectional view of single-blade needle handle of the invention.
Fig. 7 is the right view of Fig. 6.
Fig. 8 is the tail end schematic diagram of Fig. 6.
Fig. 9 is the schematic diagram of double-vane needle handle of the invention.
Figure 10 is the self-destruction support schematic diagram of another embodiment of the present invention.
Figure 11 is the temporary status diagram of another embodiment of the present invention.
Figure 12 is the self-destruction status diagram of another embodiment of the present invention.
Figure 13 is the schematic diagram when present invention is applied to blood taking needle.
Figure 14 is the schematic diagram when present invention is applied to transfusion needle.
Schematic diagram when Figure 15 is jointing tape of the present invention.
Figure 16 is one of another form of syringe needle schematic diagram of the invention.
Figure 17 is the two of another form of syringe needle schematic diagram of the invention.
Figure 18 is the syringe needle schematic diagram of double-vane arc needle handle of the invention.
In figure: 1- plastic flexible pipe；2- self-destruction bracket；Plastic flexible pipe between 3- syringe needle and self-destruction bracket；4- needle handle；5- needle Head front end；6- needle point；7- syringe needle；8- needle point slot；9- stores up needle cavity；10- baffle；11- guide pin；12- needle handle slot；The hand-held part 13-； 14- step surface；15- through-hole；16- needle handle tail end；17- linear type；The inclined-plane 18-；19- double-vane needle handle；20- temporary tank；21- is adopted Blood needle staight needle handle；22- transfusion needle attachment base；23- adhesive tape.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiments of the present invention will be described in further detail.Implement below Example is not intended to limit the scope of the invention for illustrating the present invention.
As shown in figures 1-15, a kind of suitable for intravenous infusion needle and the needle head structure of vein blood taking needle, including plastic flexible pipe 1 And it is mounted on the syringe needle 7 of plastic flexible pipe end, syringe needle 7 includes needle point 6 and needle handle 4, and the middle part of the plastic flexible pipe 1 is fixedly mounted There is self-destruction bracket 2, the storage needle cavity 9 of storage syringe needle is formed on self-destruction bracket 2；Syringe needle 7 is with its tail end (that is, needle handle tail end 16) When basic point overturns and is embedded in the storage needle cavity 9, the plastic flexible pipe of syringe needle tail end is (that is, the plastics between syringe needle and self-destruction bracket are soft Pipe 3) doubling and close the infusion hole (as shown in figure 3, plastic flexible pipe doubling at needle handle tail end 16) of plastic flexible pipe；It stores up in needle cavity It is provided with the baffle 10 for blocking the syringe needle and it being prevented to exit, which can effectively prevent needle so that when self-destruction of the present invention Medical fluid in head and plastic flexible pipe is unrestrained.
The left side of the storage needle cavity is needle point slot 8, right side is needle handle slot 12；The baffle is arranged in needle point slot 12, institute Needle handle 4 and 12 two sidewalls of needle handle slot interference fit are stated, to realize the fixation of needle handle；The front end of needle handle is against the step of needle handle slot On face, to realize tightening for the plastic flexible pipe between syringe needle and self-destruction bracket；Fin on the needle handle is single-blade or double-vane.
The top of the needle handle slot to the left, extend obliquely upward to form temporary tank 20；The two sides cell wall of temporary tank 20 can be embraced Tight needle handle front (as shown in figure 11), plastic flexible pipe still doubling at needle handle tail end 16 simultaneously keep infusion hole to close, need to point out , as long as plastic flexible pipe is for infusion hole closing can be realized in doubled state, plastic flexible pipe, which is tightened, only further increases closing Effect.The design saves syringe needle temporarily in midway, makes it not by bacterium infection, and can prevent medical fluid from letting out in self-destruction Leakage.
The lower part of the self-destruction bracket is provided with the interconnecting piece passed through for the plastic flexible pipe, and interconnecting piece is provided with through-hole 15；The plastic flexible pipe passes through the through-hole and is bonded as one with self-destruction bracket.In the present embodiment, the downside of interconnecting piece extends And form hand-held part.
The two sides of the self-destruction bracket right end form the guide pin 11 that storage needle cavity is embedded in convenient for syringe needle.It can prevent from curing Shield personnel not very make syringe needle be not aligned with storage needle cavity 9 caused by deflect away from.
The two sides up and down of the needle handle tail end are provided with inclined-plane 18, and the syringe needle tail end between upper and lower inclined-plane forms " one " Font 17, structure are similar with the word spiral shell tool structure of end, it is ensured that more docile when plastic flexible pipe doubling, sealing effect is more It is good.
The step surface 17 is inclined surface；Needle handle front end is against the plastic flexible pipe degree of tautness < needle handle front end on inclined surface top It is against the plastic flexible pipe degree of tautness of inclined surface lower part.Syringe needle insertion storage needle cavity is deeper, then the closing effect at the fold of plastic flexible pipe Fruit is better, more not easy-to-leak liquid.
It is provided with the rack gear (not shown) for preventing needle handle front end from sliding on the step surface, syringe needle can be prevented in plastics Sealing effect caused by moving up automatically under the effect of hose elastic force reduces.
The needle handle is made of colourless transparent plastic；The mark of mark needle point model is provided on the self-destruction bracket, Without worrying mixing for color masterbatch, safety is improved；It is corresponding, there are enough positions to mark needle point model on self-destruction bracket Know, had not only avoided influence of the color masterbatch to medical fluid, but also do not influence label.
After infusion adhesive tape both ends removing still stick on needle handle, can self-destruction, adhesive tape do not have to and needle handle removing reduce sufferer Pull out needle pain.
It need to point out, often have medical staff to reflect following situation: when in use, hand-held needle handle is pierced into existing syringe needle Human body, needle point, which can generate, to be rocked, this is because at 90 degree of right-angle structures between needle handle 4 and needle main body, exert a force to handle 4 so that Needle point is pierced into human body, and the power of handle cannot be transferred to needle point main body well；
For this situation, such as Figure 16, shown in 17, the present invention has also deducted a percentage a kind of novel needle handle structure, that is, on syringe needle Form the needle handle 41 of arc, interconnecting piece (that is, position that needle handle and needle main body combine) company of 41 hand-held part of needle handle and needle handle When being in line, the included angle A of the straight line (straight line is named as needle handle line herein) and needle point center line is that (acute angle is usual for acute angle Value is carried out between 30 degree to 70 degree, the included angle A in figure is 60 degree), arcuate structure is for aesthetics design, and core exists In by adjusting the angle of needle handle line and needle point center line, so that the power that needle main body is subject to is more close to needle point center line.
As shown in figure 18, the present invention has also deducted a percentage the syringe needle of the arc needle handle structure of another double-vane, that is, the left and right of syringe needle Two sides are separately formed the needle handle 42,43 of arc.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art For member, without departing from the technical principles of the invention, several improvements and modifications, these improvements and modifications can also be made Also it should be regarded as protection scope of the present invention.

Claims (6)

1.一种适用于静脉输液针及静脉采血针的针头结构，包括塑料软管及安装在塑料软管端部的针头，针头包括针尖和针柄，其特征在于：所述塑料软管的中部固定安装有自毁支架，自毁支架上成型有储存针头的储针腔；针头以其尾端为基点翻转并嵌入所述储针腔时，针头尾端的塑料软管对折并封闭塑料软管的输液孔；储针腔内设置有卡住所述针头并阻止其退出的挡片；所述储针腔的左侧为针尖槽、右侧为针柄槽；所述挡片设置在针尖槽内，所述针柄和针柄槽两侧壁过盈配合，针柄的前端抵在针柄槽的台阶面上；所述针柄上的翼片为单翼或双翼；所述针柄槽的上部向左侧、斜向上延伸形成暂存槽；暂存槽的两侧槽壁可抱紧针柄前部；所述台阶面为倾斜面；针柄前端抵在倾斜面上部的塑料软管绷紧度&lt;针柄前端抵在倾斜面下部的塑料软管绷紧度。1. A needle structure suitable for intravenous infusion needles and venous blood collection needles, comprising a plastic hose and a needle installed at the end of the plastic hose, the needle including a needle point and a needle handle, characterized in that: the middle part of the plastic hose A self-destruct bracket is fixedly installed, and a needle storage cavity for storing needles is formed on the self-destruct bracket; when the needle is turned over with its tail end as the base point and embedded in the needle storage cavity, the plastic hose at the tail end of the needle is folded in half and the opening of the plastic hose is closed. Infusion hole; the needle storage chamber is provided with a block that blocks the needle and prevents it from withdrawing; the left side of the needle storage chamber is a needle point groove, and the right side is a needle handle groove; the block is arranged in the needle point groove , the needle handle and the two side walls of the needle handle groove are interference fit, the front end of the needle handle is against the step surface of the needle handle groove; the wings on the needle handle are single wings or double wings; the needle handle groove The upper part extends to the left and obliquely upwards to form a temporary storage groove; the groove walls on both sides of the temporary storage groove can hold the front part of the needle handle tightly; the step surface is an inclined surface; Tightness &lt; the tightness of the plastic hose where the front end of the needle handle is against the lower part of the inclined surface. 2.根据权利要求1所述的一种适用于静脉输液针及静脉采血针的针头结构，其特征在于：所述自毁支架的下部设置有供所述塑料软管穿过的连接部，连接部设置有通孔；所述塑料软管穿过所述通孔并与自毁支架粘接为一体。2. A needle structure suitable for intravenous infusion needles and venous blood collection needles according to claim 1, characterized in that: the lower part of the self-destructing bracket is provided with a connecting part for the plastic hose to pass through. The part is provided with a through hole; the plastic hose passes through the through hole and is bonded with the self-destruct bracket as a whole. 3.根据权利要求1所述的一种适用于静脉输液针及静脉采血针的针头结构，其特征在于：所述自毁支架右端的两侧成型有便于针头嵌入储针腔的导向片。3. A needle structure suitable for intravenous infusion needles and venous blood collection needles according to claim 1, characterized in that guide pieces are formed on both sides of the right end of the self-destructing bracket to facilitate insertion of the needle into the needle storage cavity. 4.根据权利要求1所述的一种适用于静脉输液针及静脉采血针的针头结构，其特征在于：所述针柄尾端的上下两侧均设置有斜面，上、下斜面之间的针头尾端形成“一”字形。4. A needle structure suitable for intravenous infusion needles and venous blood collection needles according to claim 1, characterized in that: the upper and lower sides of the tail end of the needle handle are provided with slopes, and the needle between the upper and lower slopes The tail end forms a "one" shape. 5.根据权利要求1所述的一种适用于静脉输液针及静脉采血针的针头结构，其特征在于：所述台阶面上设置有防止针柄前端滑移的齿条。5. A needle structure suitable for intravenous infusion needles and venous blood collection needles according to claim 1, characterized in that: said step surface is provided with a rack for preventing the front end of the needle handle from slipping. 6.根据权利要求1所述的一种适用于静脉输液针及静脉采血针的针头结构，其特征在于：所述针柄为无色透明塑料制成；所述自毁支架上设置有标识针尖型号的标识。6. A needle structure suitable for intravenous infusion needles and venous blood collection needles according to claim 1, characterized in that: the needle handle is made of colorless transparent plastic; the self-destructing bracket is provided with a marked needle point The ID of the model.
CN201510337761.0A 2015-06-17 2015-06-17 It is a kind of suitable for intravenous infusion needle and the needle head structure of vein blood taking needle Expired - Fee Related CN105327419B (en)

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CN109675144B (en) * 2019-01-15 2021-04-06 中国人民解放军陆军军医大学第二附属医院 a scalp needle

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US20050148930A1 (en) * 2003-12-31 2005-07-07 Hsin-Po Hsieh Captive cover for a hypodermic needle of an intravenous (IV) tube assembly
US7458551B2 (en) * 2005-11-15 2008-12-02 Biotop Holding Co., Ltd. Safety receptacle for a needle of an intravenous drip assembly
US20120143151A1 (en) * 2010-12-03 2012-06-07 Jms Singapore Pte Ltd Needle shield and a winged needle assembly
CN102716535A (en) * 2012-07-19 2012-10-10 钟波 Self-locking disposable infusion apparatus
CN205145279U (en) * 2015-06-17 2016-04-13 蔡根顺 Syringe needle structure suitable for venous transfusion needle and blood sampling needle

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1520893A (en) * 2002-03-20 2004-08-18 ���˶ٵϿ�ɭ��˾ Needle Guard Assembly
US20050148930A1 (en) * 2003-12-31 2005-07-07 Hsin-Po Hsieh Captive cover for a hypodermic needle of an intravenous (IV) tube assembly
US7458551B2 (en) * 2005-11-15 2008-12-02 Biotop Holding Co., Ltd. Safety receptacle for a needle of an intravenous drip assembly
US20120143151A1 (en) * 2010-12-03 2012-06-07 Jms Singapore Pte Ltd Needle shield and a winged needle assembly
CN102716535A (en) * 2012-07-19 2012-10-10 钟波 Self-locking disposable infusion apparatus
CN205145279U (en) * 2015-06-17 2016-04-13 蔡根顺 Syringe needle structure suitable for venous transfusion needle and blood sampling needle

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