CN105056340A - Safety type medical puncture needle and use method - Google Patents
Safety type medical puncture needle and use method Download PDFInfo
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- CN105056340A CN105056340A CN201510503964.2A CN201510503964A CN105056340A CN 105056340 A CN105056340 A CN 105056340A CN 201510503964 A CN201510503964 A CN 201510503964A CN 105056340 A CN105056340 A CN 105056340A
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- safety device
- puncture needle
- needle
- upper cover
- flexible pipe
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Abstract
The invention relates to a safety type medical puncture needle and a use method. The safety type medical puncture needle comprises a puncture needle body and a safety device. The puncture needle body is composed of a steel needle and a needle base with needle wings. The safety device comprises an upper cover and a strip-shaped bottom support. The rear end of the needle base is sleeved and connected with a hose. The needle base of the puncture needle body is sleeved with the safety device. The use method includes the steps that a medical care operator conducts clinical treatment or blood sampling operation; after completing the operation, the medical care operator presses strip-shaped protruding lines of an upper cover by one hand and pulls the needle wings with the other hand so that the puncture needle body can slide towards the clamping and hooking end of a cantilever in the safety device; after the needle wings pass slope bosses, the steel needle completely enters the safety device, and the puncture needle body can be safely taken down; at the moment, the slope bosses block the needle wings and prevent the steel needle of the puncture needle body from reversely sliding and extending out of the safety device, a hose is clamped in an opening type circular limiting hole after the puncture needle body is taken down, and in other words, the puncture needle body can be safely discarded. The safety type medical puncture needle and the use method have the advantages that the clinical puncture risk of the puncture needle is reduced, the use safety is improved, dangerousness of medical waste treatment is lowered, and the improvement effect is obvious.
Description
Technical field
The present invention relates to a kind of safe medical puncture needle and using method, is the safety device for venoclysis needle, medical blood-sampling needle and diacan.
Background technology
Puncture instrument the most general clinically with the matching used venoclysis needle of transfusion device, blood exchange transfusion set, hemodialysis apparatus or blood sampling apparatus, medical blood-sampling needle and diacan, but due to its puncture properties, these two kinds of apparatuses in use have certain danger, the sharp instrument sticks injuries rate that it causes when sufferer is many or medical personnel operate unskilled is also relatively high, and this medical injury have received and paid attention to widely.In addition, also can bring very large risk to operator during this kind of discarded medical waste recycling, sharp instrument sticks injuries also has generation frequently.
The patent No. is a kind of intravenous needle sheath utility model patent of ZL201310314017X, the anterior sheath and rear portion pleated sheet that comprise and can be fastened mutually by a pair buckle are set forth, intravenous needle is clipped in wherein by described intravenous needle sheath, use posterior vein pin to be retracted into sheath inside to stash, thus avoid scratching and infecting, simultaneously by pleated sheet rear portion limited step location intravenous needle fin, and arrange on anterior guard leading end sidewall to convex top compression restriction tube for transfusion, thus prevent needle body from departing from sheath easily.
The deficiency that this patent exists has: after intravenous needle uses, throwing aside in the process of link or transportation, due to the two-piece type structure of intravenous needle sheath, if collided or extrude, intravenous needle sheath bend is very likely caused to be out of shape, the spacing of anterior sheath and rear portion pleated sheet can strengthen thereupon, now, limited step will lose efficacy, and cannot fix the intravenous needle pin wing; Intravenous needle jacket outer surface is smooth, does not have the impetus pointed in the process of returning intravenous needle, and whole intravenous needle is easy to, due to stressed and occur crooked, damage sufferer; The leading section sidewall of anterior sheath is arranged to convex top, although the effect that compression restriction tube for transfusion makes it not be subjected to displacement can be played, but this projection compresses tube for transfusion from start to finish in actual use, inner diameter is caused to change, during clinical treatment, medicinal liquid flow velocity instability even stops, simultaneously in intravenous needle back off procedure, due to the interaction force of convex top and tube for transfusion, the link pulling fin intravenous needle to be sent into sheath will be subject to larger resistance, make this operation be difficult to carry out, reduce the practicality of this sheath.Existing medical puncture needle, generally use epoxy resin as the bonding agent of draw point and needle stand, solidification temperature needed for this bonding agent is 80 DEG C, in solidification process, the fin of polrvinyl chloride material is easily caused to deform because temperature is too high, this distortion is little on common puncture needle impact, if but be applied to sheath, fin that is bending or distortion then cannot slide smoothly between anterior sheath and rear portion pleated sheet; In addition, the injected plastics material that sheath uses also has a significant impact its performance, current similar device generally adopts polyethylene, but experience higher injection temperature after cooling procedure in, anterior sheath and rear portion pleated sheet can shrink effect, and cause slight bending, now the spacing of anterior sheath and rear portion pleated sheet can strengthen, therefore angled protrusions and spacing preiection will lose efficacy, and cannot play the effect of fixing intravenous needle.
Summary of the invention
In view of the deficiency that prior art exists, the invention provides a kind of safe medical puncture needle, safety device improves, reach the puncture needle after by use and be directly retracted into safety device, thus draw point is wrapped in safety device completely, to reach the object avoiding sharp instrument sticks injuries, greatly reduce clinical puncture risks, improve safety, also evade treatment of!medical waste risk simultaneously.
The present invention is for realizing described object, and the technical scheme adopted is: a kind of safe medical puncture needle, comprises puncture needle and safety device, and puncture needle comprises draw point, with the needle stand of the pin wing and flexible pipe, the rear end socket flexible pipe of needle stand;
Safety device comprises upper cover, the strip collet of a U-shaped strip, described collet and upper cover are integrated by two plastic hinge injection mo(u)ldings, on the wall on tail end both sides, a cantilever snap fit is respectively equipped with at upper cover, be respectively equipped with a slope boss at collet inner face near the both sides at middle part, the face of collet tail end is respectively equipped with two rectangular openings matched with two of upper cover cantilever snap fits; It is characterized in that: on the face of described safety device upper cover tail end, be provided with the circular spacing hole of open type, the circular spacing hole aperture of open type is identical with hose outside diameter, the outside of upper cover is provided with multiple tracks bar shaped burr and reaches anti-skidding object; Described draw point is bonded in the front end of needle stand by low-temperature setting adhesive, and low-temperature setting adhesive heats and reaches solidification effect in 30 minutes at 65 DEG C of-70 DEG C of temperature;
Upper cover and the strip collet of described U-shaped strip are fastened, and the needle stand of puncture needle is arranged between the upper cover of U-shaped strip and strip collet,
On needle stand the pin wing of both sides be arranged between the crack of both sides with its interference fits, the draw point of needle stand front end passes from the plastic hinge end of safety device, the flexible pipe of needle stand rear end socket passes from the cantilever snap fit end of safety device, when the pin wing of both sides on needle stand slides into cantilever snap fit end in safety device, flexible pipe is contained in the circular spacing hole of open type locked by the open card of the circular spacing hole of open type, and puncture needle is arranged in safety device;
The concrete material of described safety device is made up of by following weight following component: polypropylene 100 parts: titanium dioxide 20 parts: epoxy soybean oil 2 parts.
A using method for safe medical puncture needle, is characterized in that: step is as follows,
Step 1: safety device is sleeved on outside the needle stand of puncture needle, cantilever snap fit buckles in rectangular opening, draw point passes from the plastic hinge end of safety device, flexible pipe passes from the cantilever snap fit end of safety device, on needle stand the pin wing of both sides be arranged between the crack of both sides with its interference fits, the pin wing leans out from the crack of safety device both sides, and this hour hands wing is positioned at hinged end, and medical care operator uses the puncture needle being assembled with safety device to carry out clinical treatment or blood sampling operation;
Step 2: after completing clinical treatment or blood sampling operation, medical care operator pins cover strip burr on the other hand, pulling back the pin wing on the other hand makes puncture needle slide to cantilever snap fit end in safety device, after the pin wing crosses slope boss, draw point enters in safety device completely, can take off puncture needle safely, now, slope boss blocks the pin wing, and stop the back skating of puncture needle draw point to stretch out outside safety device, bar shaped burr is as the impetus pointed when promoting puncture needle safety device;
Step 3: after taking off puncture needle, snaps in the circular spacing hole of open type by flexible pipe, the circular spacing hole of open type utilizes and interaction force between flexible pipe locks flexible pipe, makes puncture needle not produce displacement in safety device, can throw aside safely puncture needle.
The invention has the beneficial effects as follows: by arranging multiple tracks bar shaped burr at the upper exterior surface of safety device, finger impetus when making it use as medical personnel, reach anti-skidding object, harmful effect such as puncture needle crooked grade can not be caused because of medical personnel by unstable safety device when operating, improve the success rate of operation.
By arranging the circular spacing hole of open type, utilize the aperture of the circular spacing hole of open type identical with puncture needle hose outside diameter and produce the feature of interaction force, block puncture needle flexible pipe, the puncture needle being retracted into puncture needle safety device is locked completely, make puncture needle cannot deviate from the scope of puncture needle safety device, and then more ensure that puncture needle throw aside operation safety, when avoiding because throwing aside hospital refuse mutually extrude and cause safety device distortion, both sides crack is caused to increase, and slope boss was lost efficacy, draw point is deviate from, protect the safety that hospital refuse reclaims personnel.
By using low-temperature setting adhesive as bonding agent between draw point and needle stand, originally 80 DEG C of high temperature needed for solidification are reduced to 65 DEG C-70 DEG C, thus solve the problem of pin wing high temperature deformation, make safe medical puncture needle in use there will not be the pin wing to pull the difficult situation that maybe cannot pull due to distortion.
By using the modified polypropene of polypropylene, titanium dioxide, epoxy soybean oil proportioning, strengthen the raw-material hardness of safety device and toughness, produce the problem of distortion after solving original single polypropylene material injection moulding, thus avoid the slope boss position-limiting action inefficacy caused because safety device distortion causes both sides crack excessive.
Safe medical lancet design in the present invention is rigorous, and safety coefficient is high, uses flexibly, can be applicable to polytype venoclysis needle, medical blood-sampling needle and diacan, have very strong practicality.
Safe medical puncture needle in the present invention reduces the clinical puncture risks of puncture needle, improves safety in utilization, also reduces the danger for the treatment of of!medical waste, there is higher novelty, and the point of product improvement technology is more in advance obvious, function is improved feasible more, improves remarkably productive.
Accompanying drawing explanation
Fig. 1 is structural representation figure of the present invention;
Fig. 2 is the state diagram after the present invention uses;
Fig. 3 is that safety device closed configuration of the present invention is gone to the bottom support axonometric chart upwards;
Fig. 4 is epivalve axonometric chart upwards under safety device closed configuration of the present invention;
Fig. 5 is safety device closed configuration side view of the present invention;
Fig. 6 is safety device closed configuration top view of the present invention;
Fig. 7 is safety device open mode outer lower face surface of the present invention axonometric chart upwards;
Fig. 8 is inner surface upwards axonometric chart under safety device open mode of the present invention;
Fig. 9 is puncture needle structure schematic diagram of the present invention.
Detailed description of the invention
As shown in Figures 1 to 9, a kind of safe medical puncture needle, comprises puncture needle 1 and safety device 2, and puncture needle 1 comprises draw point 1-1, with the needle stand 1-2 of pin wing 1-3 and the rear end socket flexible pipe 1-4 of flexible pipe 1-4, needle stand 1-2.
Safety device comprises upper cover 2-1, the strip collet 2-2 of a U-shaped strip, collet 2-2 and upper cover 2-1 is integrated by two plastic hinge 2-3 injection mo(u)lding, on the wall on tail end both sides, a cantilever snap fit 2-1-2 is respectively equipped with at upper cover 2-1, be respectively equipped with a slope boss 2-2-1 at collet 2-2 inner face near the both sides at middle part, the face of collet 2-2 tail end is respectively equipped with two the rectangular opening 2-2-2 matched with two of upper cover 2-1 cantilever snap fit 2-1-2.
The face of safety device 2 upper cover 2-1 tail end is provided with the circular spacing hole 2-1-3 of open type, and the circular spacing hole 2-1-3 aperture of open type is identical with flexible pipe 1-4 external diameter, the outside of upper cover 2-1 is provided with multiple tracks bar shaped burr 2-1-1 and reaches anti-skidding object.
Draw point 1-1 is bonded in the front end of needle stand 1-2 by low-temperature setting adhesive 1-5, and low-temperature setting adhesive 1-5 heats and reaches solidification effect in 30 minutes at 65 DEG C of-70 DEG C of temperature.
Upper cover 2-1 and the strip collet 2-2 of U-shaped strip are fastened, the needle stand 1-2 of puncture needle 1 is arranged between the upper cover 2-1 of U-shaped strip and strip collet 2-2, on needle stand 1-2, the pin wing 1-3 of both sides is arranged on interference fits between the crack 2-4 of both sides, the draw point 1-1 of needle stand 1-2 front end passes from the plastic hinge 2-3 end of safety device 2, the flexible pipe 1-4 of needle stand 1-2 rear end socket passes from the cantilever snap fit 2-1-2 end of safety device 2, when the pin wing 1-3 of both sides on needle stand 1-2 slides into cantilever snap fit 2-1-2 end in safety device 2, make flexible pipe 1-4 by the opening of the circular spacing hole 2-1-3 of open type, be installed in the circular spacing hole 2-1-3 of open type, puncture needle 1 is arranged in safety device 2.
Because flexible pipe 1-4 is under pressure when snapping in open type circle spacing hole 2-1-3, and can not skid off in the circular spacing hole 2-1-3 of open type, causing puncture needle 1 to pass from the plastic hinge 2-3 of safety device 2 end again.
The concrete material of safety device 2 is made up of by following weight portion following component: polypropylene 100 parts: titanium dioxide 20 parts: epoxy soybean oil 2 parts.
Claims (2)
1. a safe medical puncture needle, comprises puncture needle (1) and safety device (2), and puncture needle (1) comprises draw point (1-1), with the needle stand (1-2) of the pin wing (1-3) and flexible pipe (1-4), rear end socket flexible pipe (1-4) of needle stand (1-2);
Safety device comprises the upper cover (2-1) of a U-shaped strip, strip collet (2-2), described collet (2-2) and upper cover (2-1) are integrated by the injection mo(u)lding of two plastic hinges (2-3), on the wall on tail end both sides, a cantilever snap fit (2-1-2) is respectively equipped with at upper cover (2-1), a slope boss (2-2-1) is respectively equipped with near the both sides at middle part at collet (2-2) inner face, the face of collet (2-2) tail end is respectively equipped with two rectangular openings (2-2-2) matched with two cantilever snap fits (2-1-2) of upper cover (2-1), it is characterized in that: on the face of described safety device (2) upper cover (2-1) tail end, be provided with the circular spacing hole (2-1-3) of open type, circular spacing hole (2-1-3) aperture of open type is identical with flexible pipe (1-4) external diameter, the outside of upper cover (2-1) is provided with multiple tracks bar shaped burr (2-1-1) and reaches anti-skidding object, described draw point (1-1) is bonded in the front end of needle stand (1-2) by low-temperature setting adhesive (1-5), and low-temperature setting adhesive (1-5) heats and reaches solidification effect in 30 minutes at 65 DEG C of-70 DEG C of temperature,
Upper cover (2-1) and the strip collet (2-2) of described U-shaped strip are fastened, and the needle stand (1-2) of puncture needle (1) is arranged between the upper cover (2-1) of U-shaped strip and strip collet (2-2),
The pin wing (1-3) of the upper both sides of needle stand (1-2) be arranged between both sides crack (2-4) with its interference fits, the draw point (1-1) of needle stand (1-2) front end passes from plastic hinge (2-3) end of safety device (2), the flexible pipe (1-4) of needle stand (1-2) rear end socket passes from cantilever snap fit (2-1-2) end of safety device (2), when the pin wing (1-3) of the upper both sides of needle stand (1-2) slide in safety device (2) cantilever snap fit (2-1-2) hold time, flexible pipe (1-4) is contained in the circular spacing hole (2-1-3) of open type locked by the open card of the circular spacing hole (2-1-3) of open type, puncture needle (1) is arranged in safety device (2),
The concrete material of described safety device (2) is made up of by following weight following component: polypropylene 100 parts: titanium dioxide 20 parts: epoxy soybean oil 2 parts.
2. the using method of safe medical puncture needle, is characterized in that: step is as follows,
Step 1: safety device (2) is sleeved on the needle stand (1-2) of puncture needle (1) outward, cantilever snap fit (2-1-2) buckles in rectangular opening (2-2-2), draw point (1-1) passes from plastic hinge (2-3) end of safety device (2), flexible pipe (1-4) passes from cantilever snap fit (2-1-2) end of safety device (2), the pin wing (1-3) of the upper both sides of needle stand (1-2) be arranged between both sides crack (2-4) with its interference fits, the pin wing (1-3) leans out from safety device (2) both sides crack (2-4), this hour hands wing (1-3) is positioned at hinge (2-3) end, medical care operator uses the puncture needle (1) being assembled with safety device (2) to carry out clinical treatment or blood sampling operation,
Step 2: after completing clinical treatment or blood sampling operation, medical care operator pins upper cover (2-1) bar shaped burr (2-1-1) on the other hand, pulling back the pin wing (1-2) on the other hand makes puncture needle (1) slide to cantilever snap fit (2-1-2) end in safety device (2), after the pin wing (1-3) crosses slope boss (2-2-1), draw point (1-1) enters in safety device (2) completely, puncture needle (1) can be taken off safely, now, slope boss (2-2-1) blocks the pin wing (1-3), puncture needle draw point (1) back skating is stoped to stretch out safety device (2) outward, bar shaped burr (4-1-1) is as the impetus pointed when promoting puncture needle safety device (4),
Step 3: after taking off puncture needle, flexible pipe (1-4) is snapped in the circular spacing hole (2-1-3) of open type, interaction force between circular spacing hole (2-1-3) utilization of open type and flexible pipe (1-4) locks flexible pipe (1-4), make puncture needle (1) not produce displacement in safety device (2), can throw aside safely puncture needle (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510503964.2A CN105056340A (en) | 2015-08-18 | 2015-08-18 | Safety type medical puncture needle and use method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510503964.2A CN105056340A (en) | 2015-08-18 | 2015-08-18 | Safety type medical puncture needle and use method |
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| CN105056340A true CN105056340A (en) | 2015-11-18 |
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| CN201510503964.2A Pending CN105056340A (en) | 2015-08-18 | 2015-08-18 | Safety type medical puncture needle and use method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108523904A (en) * | 2018-07-04 | 2018-09-14 | 南通市中医院 | A kind of disposable artery and vein puncture blood taking needle and its protective device |
| CN108523904B (en) * | 2018-07-04 | 2024-05-10 | 南通市中医院 | Disposable arteriovenous puncture blood taking needle and protection device thereof |
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| CN1429631A (en) * | 2001-12-28 | 2003-07-16 | 贝克顿迪肯森公司 | Medical needle assembly |
| CN202724368U (en) * | 2012-08-31 | 2013-02-13 | 浙江康德莱医疗器械股份有限公司 | Safety infusion needle |
| CN203208036U (en) * | 2013-03-29 | 2013-09-25 | 扬州美德莱医疗用品有限公司 | Anti-acupuncture vacuum blood taking needle |
| CN104338204A (en) * | 2013-07-25 | 2015-02-11 | 江苏康宝医疗器械有限公司 | Safety vein needle protection sleeve |
| CN104667380A (en) * | 2015-02-11 | 2015-06-03 | 林刚 | Novel transfusion needle fixing protection device |
-
2015
- 2015-08-18 CN CN201510503964.2A patent/CN105056340A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1429631A (en) * | 2001-12-28 | 2003-07-16 | 贝克顿迪肯森公司 | Medical needle assembly |
| CN202724368U (en) * | 2012-08-31 | 2013-02-13 | 浙江康德莱医疗器械股份有限公司 | Safety infusion needle |
| CN203208036U (en) * | 2013-03-29 | 2013-09-25 | 扬州美德莱医疗用品有限公司 | Anti-acupuncture vacuum blood taking needle |
| CN104338204A (en) * | 2013-07-25 | 2015-02-11 | 江苏康宝医疗器械有限公司 | Safety vein needle protection sleeve |
| CN104667380A (en) * | 2015-02-11 | 2015-06-03 | 林刚 | Novel transfusion needle fixing protection device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108523904A (en) * | 2018-07-04 | 2018-09-14 | 南通市中医院 | A kind of disposable artery and vein puncture blood taking needle and its protective device |
| CN108523904B (en) * | 2018-07-04 | 2024-05-10 | 南通市中医院 | Disposable arteriovenous puncture blood taking needle and protection device thereof |
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Application publication date: 20151118 |