CN103341228A - Disposable multi-needle-tube injection needle head and pre-filling syringe comprising injection needle head - Google Patents
Disposable multi-needle-tube injection needle head and pre-filling syringe comprising injection needle head Download PDFInfo
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- CN103341228A CN103341228A CN2013103063830A CN201310306383A CN103341228A CN 103341228 A CN103341228 A CN 103341228A CN 2013103063830 A CN2013103063830 A CN 2013103063830A CN 201310306383 A CN201310306383 A CN 201310306383A CN 103341228 A CN103341228 A CN 103341228A
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- needle tubing
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES 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
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
- A61M5/3295—Multiple needle devices, e.g. a plurality of needles arranged coaxially or in parallel
- A61M5/3298—Needles arranged in parallel
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES 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
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/28—Syringe ampoules or carpules, i.e. ampoules or carpules provided with a needle
- A61M5/285—Syringe ampoules or carpules, i.e. ampoules or carpules provided with a needle with sealing means to be broken or opened
- A61M5/288—Syringe ampoules or carpules, i.e. ampoules or carpules provided with a needle with sealing means to be broken or opened by piercing without internal pressure increase
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Abstract
The invention relates to the technical field of medical instruments, in particular to a disposable multi-needle-tube injection needle head and a pre-filling syringe comprising the injection needle. The disposable multi-needle-tube injection needle head comprises a needle seat, a needle tube fixing piece, a locating structure and at least two needle tubes. The needle tubes pass through through holes in a top cover of the needle seat and are fixedly arranged on the top cover of the needle seat through needle tube fixing pieces in a dispersing mode. The needle tube fixing pieces are fixed in the locating structure. The two ends of each needle tube are provided with needle tips. Insulin can be injected under skin through vertical piercing of the injection needle head. The injection needle head is short in injection time, favorable to absorption of insulin, capable of avoiding local subcutaneous fat hyperplasia and induration caused by long-time accumulation, caused by single needle tube injection, of insulin, brings convenience to injection in turns, is simple in structure and manufacture technology and low in cost, and reduces the risk that a needle head can not be used due to the fact that a single liquid-taking needle tube is blocked in the puncture process, and improves the reliability of injection.
Description
Technical field
The present invention relates to technical field of medical instruments, relate in particular to a kind of injection needles head and comprise the prefilled syringe of this injection needle.
Background technology
Injection technique, injection device are being played the part of important role in treating diabetes, in addition with select the insulin preparation no less important, concern the success or failure of glycemic control.A lot of medical personnel usually ignore injection technique itself to the influence of glycemic control with the diabetics of accepting injection of insulin.The clinician considers not reach the reason of expection glycemic control target from insulin preparation, blood glucose self-monitoring equal angles through regular meeting; but having ignored injection technique and injection device to the influence of glycemic control, is an important link and insulin enters the process that plays a role in the human body by injection device.Because the partes corporis humani position is to the absorption property of there are differences of insulin, injection of insulin is to subcutaneous still Musclar layer, and there is very big-difference in its absorption rate, and the muscle of resting state and kinestate also has very big variation to the absorption of insulin situation.Improve insulin injection device and optimize the injection of insulin technology, comprise the needle tubing of selecting suitable number and length, note correct injection maneuver, standard ground is the injection site by turns, avoids intramuscular injection etc., and these are significant to obtaining good glycemic control.
Injection needle on the existing ordinary syringe all has only a needle tubing, (length is usually greater than 15 millimeters because syringe size is big, external diameter is usually greater than 0.35 millimeter), be very suitable for the intramuscular injection of heavy dose of medicinal liquid, be not suitable for the per injection amount seldom but to the subcutaneous injection of the very high medicinal liquids such as insulin of accuracy of dose requirement.In the injection of insulin field, because insulin injection pen has simple and convenient and easy to study, dosage accurately, pain obviously reduces, imitates advantages such as good during convenient durable, injection, now adopted by diabetics widely.An end of various commercially available insulin injection pens all is provided with the injection memorizer now, the column jacket casing that needs during use disposable pen is used injection needle is on the interface of injection memorizer, and meanwhile the needle tubing in the column tube can pierce through the elastic layer of injection top of memory in order to extract medicinal liquid.Present insulin injection pen is compared with the normal injection syringe needle with all having only a needle tubing on the injection needle, only is needle tubing thinner (external diameter is 0.23-0.33mm), is used for the needle tubing length shorter (5-12.8mm) thrust skin.
This shows, in existing injection of insulin technology, has only a needle tubing on each syringe needle, under the situation of the same dosage of injection, medicament is all concentrated and is injected at same position, be subjected to epidermis can cause obviously increase inject time to the restriction of medicinal liquid absorption rate, because insulin itself is kind of a somatomedin, insulin will inevitably cause this position subcutaneous fat hypertrophy and produce scleroma gathering for a long time of injection site.Injection here more from now on, the absorbance of insulin will obviously descend, and the performance that must influence drug effect causes the instability of glycemic control.In practical operation, fail in the short time to spread fully and absorption because inject subcutaneous medicinal liquid, regular meeting has medicinal liquid to ooze from pinprick, causes leakage, so just can't guarantee the accuracy of therapeutic dose.
China's injection of insulin state of the art survey result shows, has 31.1% patient infusion position to occur lump approximately, wherein ninety percent occurs in abdominal part, but still has the patient to be chosen in the injection of adipose hyperplasia position.In fact, the position that human body is fit to insulin injection is abdominal part only not, and positions such as big leg outer side, arm 1/4 place, the outside and buttocks can.Because treatment phase of diabetics is very long and all inject every day 3 to 4 times, requirement must be rotated insulin injection and be had higher subcutaneous absorbance and concordance thereof to guarantee the injection site as far as possible between abdominal part, arm, thigh, buttocks, so just can guarantee curative effect, avoid the probability that develops complications.Yet, because the needle tubing on the existing injection needle is all longer, pinch injection skills such as skin, inclination needle tubing for avoiding intramuscular injection to adopt, and when arm, buttocks injection, patient just inconvenience adopts above-mentioned injecting method, this just many patients only be chosen in the basic reason of abdominal part injection.
Pain on injection sense meeting obviously increases with the degree of depth of thrusting, and especially infant is forbidding still can to allow many patients.Owing to have only a needle tubing on each syringe needle, under the situation of the same dosage of injection, the needle tubing length degree of depth more short, that thrust is more shallow, though can reduce pain, but be subjected to epidermis can cause obviously increase inject time to the restriction of medicinal liquid absorption rate, and insulin will inevitably cause this position subcutaneous fat hypertrophy and produce scleroma gathering for a long time of injection site.
Above-mentioned factor can be brought many inconvenience to patient undoubtedly, and To know is easy, but to do is difficult, has reduced patient and has adopted correct method to carry out the compliance of injection for curing, and affected the treatment.
In addition, the necessary supporting use of bound insulin injection pen of the injection needles head on the existing insulin injection pen is separately deposited at ordinary times, fits together during use temporarily again, and whole injection device volume and weight are bigger, and are only applicable to insulin injection.
At present, Chinese invention patent number adopts one to get the liquid pin and can solve more above-mentioned problems through the structure that micro-cavities converts many micropins to for " the disposable array-type micro injection needle " of ZL201110317397.3, and the method that is installed on the insulin injection pen is identical with syringe needle with existing commercially available novopen, but its structure and manufacturing process are comparatively complicated, cause cost also higher.
Therefore, at above deficiency, the invention provides a kind of disposable spininess pipe injection needle and comprise the prefilled syringe of this injection needle.
Summary of the invention
(1) technical problem that will solve
The purpose of this invention is to provide a kind of disposable spininess pipe injection needle, the injection that exists when on the one hand solving existing novopen and using with the injection needles head subcutaneous too concentrate to cause absorbing slowly, easily make the subcutaneous generation scleroma in injection site, easy-to-leak liquid, inject time length and awkward problem, solve structure and complex manufacturing technology and the cost problem of higher of existing array injection needle existence on the other hand simultaneously.
Another object of the present invention provides a kind of prefilled syringe of this disposable spininess pipe injection needle that comprises to improve the injection application portability.
(2) technical scheme
In order to solve the problems of the technologies described above, the invention provides a kind of disposable spininess pipe injection needle, it comprises needle stand, the needle tubing fixture, location structure and at least two needle tubings, described needle stand is an end opening, the other end has the column tube of top cover, offer through hole on the top cover of described needle stand, described needle tubing passes the through hole on the top cover of described needle stand and is fixedly installed on dispersedly on the top cover of described needle stand by described needle tubing fixture, described location structure is arranged on the top cover of described needle stand or/and under the top cover, described needle tubing fixture is fixed in the described location structure, and the two ends of described needle tubing have needle point.
Wherein, described needle tubing fixture comprises substrate portion, and described substrate portion is fixed in the described location structure.
Wherein, described needle tubing fixture also comprises the filling part that is connected with described substrate portion, and described filling part stretches into or pass the through hole of described top cover.
Wherein, described location structure is the location double wall, and the inner surface of described location double wall has the substrate portion that groove is used for the described needle tubing fixture of chucking.
Wherein, the number of described needle tubing and described through hole is consistent, and each described needle tubing is positioned among each through hole and is array and distributes.
Wherein, the normal direction difference of the liquid outlet of at least two described needle points.
Wherein, at least two partial-length differences that needle tubing stretches out described location structure.
Wherein, the substrate portion of described needle tubing fixture be polymer with the material of filling part or be sqtructural adhesive or the substrate portion of described needle tubing fixture in the position that contacts with needle tubing be filled with structural adhesive, the material at other position of substrate portion is polymer, and the material of the filling part of described needle tubing fixture is structural adhesive.
Wherein, it is 0.2mm～4mm that described needle tubing stretches out the length that described location structure is used for the part of skin puncture and injection, it is 0.5mm～15mm that described needle tubing is positioned at the length that described column tube be used for to extract the part of injection, the external diameter of described needle tubing is 60um～450um, and internal diameter is 30um～250um.
Wherein, the location structure on the top cover of described needle stand is arranged with the needle tubing protective sleeve outward, and described needle stand and needle tubing protective sleeve are arranged with the needle stand protective sleeve outward, and the opening part of described needle stand protective sleeve bottom is provided with sealing material layer.
The present invention also provides a kind of prefilled syringe that comprises above-mentioned disposable spininess pipe injection needle, it also comprises the injection memorizer that matches with the inwall of described column tube, described injection memorizer comprises cylindrical shell, elastomer layer and piston, the top of described cylindrical shell and bottom are equipped with opening and cylindrical shell is provided with containing mark, described elastomer layer is positioned at the top of cylindrical shell for the opening at sealed cylinder top, described piston is arranged on the bottom of described cylindrical shell, the bottom of described cylindrical shell also is connected with bending segment, and the free end of described bending segment is connected or clamping with the outer wall thread of described column tube.
(3) beneficial effect
Technique scheme of the present invention has following advantage: disposable spininess pipe injection needle provided by the invention makes a plurality of needle tubings directly pass the through hole on the described needle stand top cover and is fixedly installed on dispersedly on the top cover of described needle stand by described needle tubing fixture, all there is needle point at the two ends of needle tubing, be respectively applied to get liquid and injection, can inject the insulin of doses subcutaneous simultaneously dispersedly like this, inject time is short, be conducive to the absorption of insulin, no leakage, can effectively avoid injection site subcutaneous fat hypertrophy and produce scleroma, structure and the manufacturing process of this disposable spininess pipe injection needle are simple simultaneously, with low cost, and reduced syringe needle because the single liquid needle tubing of getting stops up out of use risk at piercing process, improved the reliability of injection; Because it is shorter for the length of the part of skin puncture and injection that needle tubing stretches out described location structure, conventional injection such as skin, needle tubing inclination skill can be considered to pinch, can intramuscular injection needn't be worried to cause in a plurality of effective injection site injections such as arm, thigh, abdominal part very easily; The prefilled syringe that the embodiment of the invention provides is combined disposable spininess pipe injection needle and injection bin, use more conveniently, the device small volume and less weight and is not limited to injection of insulin, also go for the other drug injection, application prospect is more extensive.
Description of drawings
Fig. 1 is the structure cutaway view of disposable spininess pipe injection needle in the embodiment of the invention 1;
Fig. 2 is the structure cutaway view of locating the double wall disposable spininess pipe injection needle different with Fig. 1 in the embodiment of the invention 1;
Fig. 3 is the structure cutaway view of a kind of needle tubing fixture disposable spininess pipe injection needle different with Fig. 1 in the embodiment of the invention 1;
Fig. 4 is the structure cutaway view of the another kind of needle tubing fixture disposable spininess pipe injection needle different with Fig. 1 in the embodiment of the invention 1;
Fig. 5 is the structure cutaway view of injection needles head in the embodiment of the invention 2;
Fig. 6 is the structure cutaway view of the needle tubing fixture disposable spininess pipe injection needle different with Fig. 3 in the embodiment of the invention 2;
Fig. 7 is the structure cutaway view of the needle tubing fixture disposable spininess pipe injection needle different with Fig. 4 in the embodiment of the invention 2;
Fig. 8 is the perspective view of disposable spininess pipe injection needle in the embodiment of the invention 1;
Fig. 9 is the perspective view of locating the double wall disposable spininess pipe injection needle different with Fig. 8 in the embodiment of the invention 1;
Figure 10 is the structure cutaway view of prefilled syringe in the embodiment of the invention 3.
Among the figure, 1: needle stand; 2: needle tubing; 3: top cover; 4: through hole; 5: the column tube; 6: the location double wall; 7: substrate portion; 8: groove; 9: the needle tubing fixture; 10: filling part; 11: the needle tubing protective sleeve; 12: the needle stand protective sleeve; 13: sealing material layer; 14: the injection memorizer; 15: injection; 16: elastomer layer; 17: piston; 18: the district is threaded.
The specific embodiment
Below in conjunction with drawings and Examples the specific embodiment of the present invention is described in further detail.Following examples are used for explanation the present invention, but are not used for limiting the scope of the invention.
As shown in Figure 1, a kind of disposable spininess pipe injection needle that the embodiment of the invention provides, it comprises needle stand 1, three needle tubings 2, needle tubing fixture 9, location double wall 6, needle tubing protective sleeve 11, needle stand protective sleeve 12 and sealing material layers 13; This needle stand 1 is the column tube 5 that has top cover 3 for an end opening, the other end, offers a through hole 4 on the top cover 3 of needle stand 1; Described needle tubing 2 pass needle stand 1 top cover 3 through hole 4 and by needle tubing fixture 9 arrays be fixedly installed on the top cover 3 of needle stand 1, the two ends of needle tubing 2 all have needle point, the needle point structure at two ends can be different, the needle point that wherein is positioned at top cover 3 tops is used for thrusting skin and injection, places the needle point in the column tube 5 to be used for thrusting the injection memorizer in order to extract medicinal liquid; Needle tubing fixture 9 is a convex structure, comprise the substrate portion 7 and the filling part 10 that are connected as a single entity, substrate portion 7 is positioned at top cover 3 tops, filling part 10 passes through hole 4, because needle tubing is usually very thin and to be positioned at the part of column tube longer, can increase the contact length of needle tubing 2 and needle tubing fixture 9 by filling part 10, and effectively reduce the length of the needle tubing 2 that in column tube 5, exposes, thereby the relatively more firm and mechanical strength of needle tubing 2 further being improved be beneficial to thrust the injection memorizer gets liquid, and the length of this filling part 10 would not influence needle tubing 2 and gets liquid certainly; Substrate portion 7 and filling part 10 employing polymeric materials or structure adhesive are integrally manufactured; Top cover 3 tops are provided with the substrate portion 7 that location double wall 6 is used for limiting needle tubing fixture 9, prevent that substrate portion 7 from moving radially at needle tubing 2, the inwall of location double wall 6 has groove 8, substrate portion 7 is stuck in the groove 8, can make needle tubing fixture 9 more firm, can certainly use structural adhesive that the substrate portion 7 of needle tubing fixture 9 is bonded on needle stand 1 top cover 3; Be arranged with needle tubing protective sleeve 11 on double wall 6 outer walls of location, can be arranged with needle stand protective sleeve 12 in the outside of needle tubing protective sleeve 11 and needle stand 1; The opening part of needle stand protective sleeve 12 bottoms is provided with sealing material layer 13, and encapsulant can be selected medical materials such as sealing dialyzing paper for use.Certainly, the number of needle tubing 2 is not limited to three in the present embodiment, can be two, four, five or more number more, and the distribution of needle tubing 2 is not limited to the arrangement of array, as long as can be arranged on dispersedly on the needle tubing fixture 9.
Present embodiment is by being arranged on needle tubing 2 dispersedly on the needle tubing fixture 9, needle tubing fixture 9 firmly is arranged on the top cover 3 of needle stand 1 by location double wall 6 again, thereby array spininess pipe 2 injection needles have been formed, by this syringe needle, can inject the insulin of doses subcutaneous dispersedly simultaneously, inject time is short, be conducive to the fast Absorption of insulin and easy-to-leak liquid not, having avoided single needle tubing insulin injection to accumulate in the injection site overlong time causes the subcutaneous fat hypertrophy and produces the phenomenon of scleroma, during injection, can vertically inject, easy to use; Three needle tubings 2 of present embodiment directly pass the through hole 4 of needle stand 1, and be that the needle tubing fixture 9 of structural adhesive is arranged on the needle stand top cover 3 by material, structure and manufacturing process are simple, with low cost, needle tubing reliability height, and reduce syringe needle and get the liquid end in the out of use risk of piercing process obstruction because of indivedual needle tubings 2, improved the reliability of injection; Needle tubing protective sleeve 11 and needle stand protective sleeve 12 can be selected plastics preparations such as multiple material such as polypropylene, polrvinyl chloride for use; can prevent that by needle tubing protective sleeve 11 syringe needle bending in moving process from damaging needle tubing 2; by needle stand protective sleeve 12 and sealing material layer 13 are set, just can guarantee that after syringe needle is through sterilizations such as oxirane syringe needle and needle stand 1 are in the cleaning aseptic environments in the period of use always.
Different with Fig. 1, because the several needle tubings among Fig. 2 form a line, needle tubing fixture 9 becomes L shaped, also can also not adopt structural adhesive further to increase constant intensity in addition 9 firm the fixing of needle tubing fixture even groove 8 is set in the double wall 6 of part location; Needle tubing fixture 9 among Fig. 3 directly is reduced to substrate portion 7, and this substrate portion 7 is surface plate, but also can be curved slab.
Further, as shown in Figure 4, needle tubing fixture 9 in the present embodiment also can have other distortion, its substrate portion 7 can be made by polymer such as plastic plate and structural adhesive, the position that is connected with needle tubing 2 in the plastic plate is filled with structural adhesive, and the material of the filling part 10 of needle tubing fixture 9 is structural adhesive.
Present embodiment provides another disposable spininess pipe injection needle, and the difference of itself and embodiment 1 mainly is the structure of the number of through hole 4 on the needle stand top cover 3, needle tubing fixture 9 and location double wall 6.
As shown in Figure 5, top cover 3 at needle stand 1 arranges three through hole 4 arrays, adopt the glutinous agent of epoxy resin structural adhesive that the rustless steel needle tubing 2 that three two ends all have needle point directly is fixed on respectively on the needle stand top cover 3 with through hole 4 arrays, the substrate portion 7 of needle tubing fixture 9 and filling part 10 are the glutinous agent of epoxy resin structural adhesive, because needle tubing fixture 9 all is to form by structural adhesive being filled in three through holes 4 with on the needle stand top cover 3 in the present embodiment, needle tubing fixture 9 can bond well with through hole 4 inwalls and location double wall 6, so need groove 8 be set at location double wall 6.
Further, as shown in Figure 6, in order to improve the steadiness of needle tubing 2 on needle tubing fixture 9, the substrate portion 7 of needle tubing fixture 9 can also be set below needle stand top cover 3, needle tubing fixture 9 on the needle stand top cover 3 and the substrate portion 7 under the needle stand top cover 3 be arranged in through hole 4 filling parts 10 and be connected as a single entity, correspondingly, at the needle stand top cover location double wall 6 that limits needle tubing fixture 9 also is set for 3 times.
Further, as shown in Figure 7, through hole 4 on the needle stand top cover 3 can also can be bellmouth for straight hole, can adopt the glutinous agent of epoxy resin structural adhesive fixing needle tubing 2 above needle stand top cover 3, also can adopt the glutinous agent of epoxy resin structural adhesive fixing needle tubing 2 below needle tubing top cover 3, after solidifying, the glutinous agent of epoxy resin structural adhesive namely forms needle tubing fixture 9, the plate face of the substrate portion 7 of needle tubing fixture 9 can also can be curved surface for the plane, location double wall 6 can be set below needle stand 1 top cover 3, but bossing is set, this bossing is the downward extension of conical through-hole 4 array regions on needle stand 1 top cover 3, through hole 4 on this bossing is the downward extension of through hole 4 on the needle stand top cover 3, and this bossing plays the restriction effect to needle tubing fixture 9 equally.
As shown in Figure 6 and Figure 7, be beneficial to absorb and reduce medicinal liquid in the time of gathering of subcutaneous part in order to improve injection dispersibility in vivo, can arrange that needle tubing 2 stretches out the length of location double wall 6 on the top cover 3 and the normal direction of needle point liquid outlet is not quite similar.The needlepoint form at needle tubing 2 two ends also can be different with size, but must be firm in structure, be convenient to puncture and be difficult for blocking pipe.
As Fig. 8 and shown in Figure 9, the location double wall 6 on the top cover 3 can adopt multiple shape, both can be that square structure also can be circular configuration, both can be to seal continuous double wall all around, also can adopt the double wall of other compartment.Column tube 5 can adopt with existing commercially available injection pen syringe needle similarly circular usually, but also can be other shapes such as polygon, as long as can firmly be enclosed within on injection memorizer 14 interfaces.
In the embodiment of the invention, the needle tubing array can be the one-dimensional array that is arranged in a row, and also can be flat two-dimensional arrays.For the ease of the plug operation, anti-skidding stricture of vagina can be set at the outer surface of column tube 5, even also anti-skidding stricture of vagina can be set at the outer surface of needle tubing protective sleeve 11; On the inwall of needle stand protective sleeve 12, can also projection be set so that easier taking-up needle stand 1; According to the structure of injection memorizer 14 interfaces, its corresponding screw thread or fixing bayonet socket can also be set at the barrel of column tube 5, be used for removably connecting with the injection bin.
Further, the external diameter of needle tubing 2 is 60um～450um, internal diameter is 30um～250um, and stretching out in needle tubing 2 length that location double wall 6 is used for puncture injection is 0.2mm～4.0mm, and being arranged in column tube 5, to be used for from the needle tubing length of injection bin extraction injection be 0.5mm～15mm.Because the needle tubing that adopts is very thin and very short for the needle tubing length of thrusting injection, needn't consider to pinch injection such as skin maneuver just can effectively adopt vertically and inject in the injection site at arm, thigh, abdominal part etc., injection needle 2 all thrusts subcutaneous getting final product, very easy to use, the risk of being convenient to implement position injection by turns and not having intramuscular injection, can easily realize hypodynia even not have painful injection, and then obviously improve patient's injection compliance and therapeutic effect.
Above-mentioned injection needle uses except can be used for combining with existing novopen, as select the appropriate interface structure also can use with syringe or the injection memory combination of existing or future other medicines, and owing to a plurality of needle tubings are arranged as liquid taking port in the column tube of the present invention, these a plurality of liquid taking ports can use with the injection memory combination of different pharmaceutical respectively.
As shown in figure 10, present embodiment provides a kind of prefilled syringe that comprises disposable spininess pipe injection needle in above-described embodiment, it is made up of disposable spininess pipe injection needle and injection bin, the injection bin matches and can relatively move with the inwall of column tube 5, the injection memorizer comprises cylindrical shell, elastomer layer 16 and piston 17, top and the bottom of cylindrical shell are equipped with opening, the opening at cylindrical shell top is corresponding with needle tubing 2, elastomer layer 16 is positioned at the top of cylindrical shell for the opening at sealed cylinder top, simultaneously, elastomer layer 16 is easy to be pierced through by the needle point of column tube 5 inner needle tubes 2, the material selection rubber of general elastomer layer 16, piston 17 is arranged on the bottom of cylindrical shell, space between piston 17 and the elastomer layer 16 stores injection 15, the opening of cylindrical shell bottom is conveniently pressed piston 17, injection memorizer 14 is connected with column tube 5, specifically, the bottom of cylindrical shell also is connected with bending segment, all have the district 18 that is threaded accordingly on the outer wall of the free end of bending segment and column tube 5, injection memorizer 14 and column tube 5 are threaded at this and distinguish 18 and be connected.Certainly also can be provided with the bayonet arrangement that matches on the outer wall of the free end of bending segment and column tube 5, both also can take the bayonet socket clamping.The cylindrical shell of column tube and injection memorizer is made by the transparent materials such as polypropylene of routine, on the cylindrical shell of injection memorizer the containing mark of being convenient to observe can be set like this.
During use, can manually rotate earlier the injection bin is produced be threaded district 18 or fixing bayonet socket, injection memorizer 14 can slide relatively with the column tube 5 of disposable spininess pipe injection needle afterwards, press the injection bin and move towards disposable spininess pipe injection needle this moment, and with the elastomer on needle pierces top until contact injection 15, the piston 17 extruding injection that promote the bottom are at last implemented injection by needle tubing.Present embodiment is by disposable spininess pipe injection needle and injection bin are combined, and is convenient to use, the device small volume and less weight, and be not limited to injection of insulin, and also go for the other drug injection, use more extensive.
Manufacturer can be assembled into one with disposable spininess pipe injection needle and injection bin; and together be sterilized and be enclosed in the needle stand protective sleeve 12; also can at ordinary times disposable spininess pipe injection needle and injection bin be deposited respectively, be assembled into one during use again.
The various products of above-described embodiment all can adopt existing ripe processing technique and routine or the new medical material manufacture of regulation, and manufacturing process is simple, and is with low cost.
In sum, the disposable spininess pipe injection needle that the embodiment of the invention provides with many needle tubings 2 pass needle stand 1 top cover 3 through hole 4 and by needle tubing fixture 9 arrays be fixedly installed on the top cover 3 of needle stand 1, needle tubing fastness height, can inject the insulin of doses subcutaneous simultaneously dispersedly, inject time is short, be conducive to the absorption of insulin, no leakage, having avoided single needle tubing injection to cause insulin to accumulate in the injection site overlong time causes the subcutaneous fat hypertrophy and produces the phenomenon of scleroma, structure and manufacturing process are simple, with low cost, reduce syringe needle and got the liquid end in the out of use risk of piercing process obstruction because of needle tubing 2, improved the reliability of injection, and owing to adopt needle tubing very thin and very short for the needle tubing length of thrusting injection, need not to pinch just can be the directly vertical inserting needle of skin, injection needle 2 all thrusts subcutaneous getting final product, the risk of being convenient to implement position injection by turns and not having intramuscular injection, can easily realize hypodynia even not have painful injection, and then obviously improve patient's injection compliance and therapeutic effect; The prefilled syringe that the embodiment of the invention provides is combined disposable spininess pipe injection needle and injection bin, convenient to use, the device small volume and less weight, and be not limited to injection of insulin, also go for the other drug injection, use more extensive.
The above only is preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the technology of the present invention principle; can also make some improvement and modification, these improve and modification also should be considered as protection scope of the present invention.
Claims (11)
1. disposable spininess pipe injection needle, it is characterized in that: it comprises needle stand (1), needle tubing fixture (9), location structure and at least two needle tubings (2), described needle stand (1) is an end opening, the other end has the column tube (5) of top cover (3), offer through hole (4) on the top cover (3) of described needle stand (1), described needle tubing (2) passes the through hole (4) on the top cover (3) of described needle stand (1) and is fixedly installed on dispersedly by described needle tubing fixture (9) on the top cover (3) of described needle stand (1), described location structure is arranged on the top cover (3) of described needle stand (1) and goes up or/and under the top cover (3), described needle tubing fixture (9) is fixed in the described location structure, and the two ends of described needle tubing (2) have needle point.
2. disposable spininess pipe injection needle according to claim 1, it is characterized in that: described needle tubing fixture (9) comprises substrate portion (7), described substrate portion (7) is fixed in the described location structure.
3. disposable spininess pipe injection needle according to claim 2, it is characterized in that: described needle tubing fixture (9) also comprises the filling part (10) that is connected with described substrate portion (7), and described filling part (10) stretches into or pass the through hole (4) of described top cover (3).
4. disposable spininess pipe injection needle according to claim 3, it is characterized in that: described location structure is location double wall (6), and the inner surface of described location double wall (6) has the substrate portion (7) that groove (8) is used for the described needle tubing fixture of chucking (9).
5. disposable spininess pipe injection needle according to claim 1, it is characterized in that: described needle tubing (2) is consistent with the number of described through hole (4), and each described needle tubing (2) is positioned among each through hole (4) and is array and distributes.
6. disposable spininess pipe injection needle according to claim 1 is characterized in that: the normal direction difference of the liquid outlet of two described needle points at least.
7. disposable spininess pipe injection needle according to claim 1, it is characterized in that: at least two described needle tubings (2) stretch out the partial-length difference of described location structure.
8. disposable spininess pipe injection needle according to claim 3, it is characterized in that: the substrate portion (7) of described needle tubing fixture (9) be polymer with the material of filling part (10) or be sqtructural adhesive or the substrate portion of described needle tubing fixture (9) (7) in the position that contacts with needle tubing (2) be filled with structural adhesive, the material at other position of substrate portion (7) is polymer, and the material of the filling part (10) of described needle tubing fixture (9) is structural adhesive.
9. according to each described disposable spininess pipe injection needle of claim 1-8, it is characterized in that: it is 0.2mm～4mm that described needle tubing (2) stretches out the length that described location structure is used for the part of skin puncture and injection, it is 0.5mm～15mm that described needle tubing (2) is positioned at the length that described column tube (5) be used for to extract the part of injection, the external diameter of described needle tubing (2) is 60um～450um, and internal diameter is 30um～250um.
10. disposable spininess pipe injection needle according to claim 1; it is characterized in that: the location structure on the top cover (3) of described needle stand (1) is arranged with needle tubing protective sleeve (11) outward; described needle stand (1) and needle tubing protective sleeve (11) are outer to be arranged with needle stand protective sleeve (12), and the opening part of described needle stand protective sleeve (12) bottom is provided with sealing material layer (13).
11. prefilled syringe that comprises each described disposable spininess pipe injection needle of claim 1-10, it is characterized in that, also comprise the injection memorizer (14) that matches with the inwall of described column tube (5), described injection memorizer comprises cylindrical shell, elastomer layer (16) and piston (17), the top of described cylindrical shell and bottom are equipped with opening and cylindrical shell is provided with containing mark, described elastomer layer (16) is positioned at the top of cylindrical shell for the opening at sealed cylinder top, described piston (17) is arranged on the bottom of described cylindrical shell, the bottom of described cylindrical shell also is connected with bending segment, and the free end of described bending segment is connected or clamping with the outer wall thread of described column tube (5).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310306383.0A CN103341228B (en) | 2013-07-19 | 2013-07-19 | A kind of prefilled syringe |
| PCT/CN2014/082577 WO2015007243A1 (en) | 2013-07-19 | 2014-07-21 | Disposable multi-needle injection needle and pre-fillable syringe having same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310306383.0A CN103341228B (en) | 2013-07-19 | 2013-07-19 | A kind of prefilled syringe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103341228A true CN103341228A (en) | 2013-10-09 |
| CN103341228B CN103341228B (en) | 2015-08-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310306383.0A Active CN103341228B (en) | 2013-07-19 | 2013-07-19 | A kind of prefilled syringe |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN103341228B (en) |
| WO (1) | WO2015007243A1 (en) |
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| WO2015007243A1 (en) * | 2013-07-19 | 2015-01-22 | 清华大学 | Disposable multi-needle injection needle and pre-fillable syringe having same |
| CN106669025A (en) * | 2017-01-12 | 2017-05-17 | 清华大学 | Hollow metal microneedle array, syringe needle, syringe and prefilled syringe |
| CN107802493A (en) * | 2017-11-23 | 2018-03-16 | 中国人民解放军陆军军医大学第二附属医院 | A kind of syringe |
| CN108601912A (en) * | 2016-02-08 | 2018-09-28 | 豪夫迈·罗氏有限公司 | For from medical syringe safe and the device and method that easily remove needle shield element |
| CN109069080A (en) * | 2016-02-17 | 2018-12-21 | 聚合物工艺系统有限公司 | Using capillary technique for the system and method with the blood collection unit for increasing volume |
| CN110897754A (en) * | 2019-12-13 | 2020-03-24 | 中国水产科学研究院黑龙江水产研究所 | Rainbow trout attacks poisonous syringe for experiment |
| CN112007244A (en) * | 2019-05-29 | 2020-12-01 | 秀逸开发株式会社 | Needle injection assembly for insulin injection |
| CN113577461A (en) * | 2021-08-10 | 2021-11-02 | 温州康洲医疗器材有限公司 | Self-aligning needle seat and use method thereof |
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| EP2384210B1 (en) | 2008-12-02 | 2017-08-30 | Allergan, Inc. | Injection device |
| US20140350518A1 (en) | 2013-05-23 | 2014-11-27 | Allergan, Inc. | Syringe extrusion accessory |
| US10029048B2 (en) | 2014-05-13 | 2018-07-24 | Allergan, Inc. | High force injection devices |
| US10226585B2 (en) | 2014-10-01 | 2019-03-12 | Allergan, Inc. | Devices for injection and dosing |
| WO2016145230A1 (en) | 2015-03-10 | 2016-09-15 | Unger Jacob G | Multiple needle injector |
| US10596321B2 (en) | 2016-04-08 | 2020-03-24 | Allergan, Inc. | Aspiration and injection device |
| USD867582S1 (en) | 2017-03-24 | 2019-11-19 | Allergan, Inc. | Syringe device |
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| CN112007244A (en) * | 2019-05-29 | 2020-12-01 | 秀逸开发株式会社 | Needle injection assembly for insulin injection |
| CN110897754A (en) * | 2019-12-13 | 2020-03-24 | 中国水产科学研究院黑龙江水产研究所 | Rainbow trout attacks poisonous syringe for experiment |
| CN113577461A (en) * | 2021-08-10 | 2021-11-02 | 温州康洲医疗器材有限公司 | Self-aligning needle seat and use method thereof |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2015007243A1 (en) | 2015-01-22 |
| CN103341228B (en) | 2015-08-12 |
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