CN202223682U - Disposable injection micro-needle and syringe thereof - Google Patents
Disposable injection micro-needle and syringe thereof Download PDFInfo
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- CN202223682U CN202223682U CN201120303267XU CN201120303267U CN202223682U CN 202223682 U CN202223682 U CN 202223682U CN 201120303267X U CN201120303267X U CN 201120303267XU CN 201120303267 U CN201120303267 U CN 201120303267U CN 202223682 U CN202223682 U CN 202223682U
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Abstract
The utility model discloses a disposable injection micro-needle, which comprises a needle tube and a needle holder. The needle tube is used for delivering liquid and puncturing, the needle seat is used for fixing the needle tube and connected with an output connector of a syringe, one end of the needle tube is provided with a needle tip, and the other end of the needle tube is connected with an outlet end of the needle holder. The needle holder is a hollow tube with two end communicated, an inlet end of the needle holder is connected with the output connector of the syringe, the tube wall of the outlet end of the needle holder is provided with at least one opening and/or groove, and structural adhesive is filled into the openings and/or grooves and wrapped outside the needle tube to fix the needle tube into the needle holder. A syringe and a pre-filling syringe are further disclosed. The disposable injection micro-needle, the syringe and the pre-filling syringe can be made of general medical materials by existing mature processing technology, can be used independently with other relative products and also can be used with one another. Gaps in relative fields are expected to be filled so as to create tremendous economic benefits and social benefits to contribute for health and beautiful life of human.
Description
Technical field
This utility model relates to medical beauty treatment instrument and medical technical field, particularly relates to a kind of disposable micro injection needle and reaches syringe and prefilled syringe based on it.
Background technology
Disposable medical uses the international standard of aseptic injection pin to be ISO7864:1993 now, GB15811-2001 standard and its equivalence that China adopts.The needle tubing external diameter specification of above-mentioned standard is 0.3mm-1.2mm, and needle tubing length is divided into four types of L＜25mm, 25mm≤L＜40mm, L=40mm and L＞40mm, and length of needlepoint is about 1.6mm-6mm.Although above-mentioned injection needle has been made huge contribution for human healthy living; But the severe pain that injection the time causes, the hemorrhage and infection that possibly bring are as far as extensive patients especially infant and need the chronic of long term injections treatment to tend to hope pin to give birth to fear, suffer untold misery, even can refuse injection for curing and affect the state of an illness adversely.The basic reason that this " belonephobia " phenomenon occurs is too thick and subcutaneous thrust too dark of the injection needle that uses, thereby causes a large amount of damages of nervous tissue and blood vessel in injection zone.Although various vaccines are very little and all be to be expelled to Intradermal or subcutaneous shallow-layer at the dosage of bringing into play irreplaceable huge effect, per injection aspect the major disease prevention, medical personnel can only select above-mentioned syringe needle to implement injection at present.Existing research shows, depends on the injection site, and length is generally can not produce tangible pain after the miniature syringe needle of 1.5mm thrusts human body, even can be not hemorrhage; Along with thrusting further constantly increasing of the degree of depth and needle tubing external diameter, pain also can be more and more stronger thereupon, and the safety coefficient of implementing injection is also more and more littler.
In recent years, beauty treatment is popularized with the plastic surgery day by day in the world, and disposable syringe has been widely used in the implant injection to face such as forehead, canthus, glabella, nasolabial fold, the corners of the mouth, neck and other position of health.Adopt existing entry needle that meticulous subcutaneous shallow top layer injection is carried out at these sensitivities, tender and lovely position; Require the doctor must possess consummate medical skill undoubtedly; But beauty treatment person also must stand the pain on injection that is difficult to the speech table and inject the postoperative syndrome that wound causes, malpractice and dispute also emerge in an endless stream.In addition; In the plastic surgery, need evenly inject at the certain depth place of a panel region usually; And existing entry needle all has only single needle tubing, at this moment can only inject repeatedly, and treatment time is long, the patient suffering is big and be difficult to guarantee the uniformity of injecting and affect the treatment.
As everyone knows, comedo is too late, the malignant tumor of can't get rid of that hundreds of millions teenager are kept away always.At present; People go after like a flock of ducks to the anti-pox cosmetic cream of the various antiinflammatory of selling on the market; But the cuticular inhibition of human body skin outermost layer has made most so-called effective ingredient can't get into Intradermal and has played a role, thus must cause the course of treatment very long, take effect slowly.In default of proper tools and knowledge, too impatient with cutter cut, hands squeezes etc., and indigenous method is eliminated the custom that comedo has become many people, the sequela of bringing thus is of common occurrence, even also can cause serious consequence.Hereat for impelling anti-pox antiinflammatory active ingredient to be absorbed by human body more easily; Aesthetic medicine has been researched and developed by various importing pattern; Like pulsed, ion, ultrasound importing etc.; Increase the penetration power of active ingredient, make it can go deep into the effect of skin internal layer, to reach effects such as suppressing inflammation, the formation of prevention comedo.Adopt these modes to need the professional person to handle relevant device and nurse, though expensive also curative effect is limited.
Be not difficult to find out that the Therapeutic Method that above-mentioned beauty treatment is adopted all is that the superficial place of skin is implemented target administration, though each dosage that injects is very little, require therapeutic process safety, precisely, noinvasive or Wicresoft, painless or hypodynia.Because existing injection needle needle tubing is thick, needle point is longer, must thrust subcutaneously to major general's needle point fully in order to prevent leakage, will certainly produce intensive twinge and skin is caused bigger damage.This shows, adopt existing injection needle to carry out injection for curing and have obvious defects in the medical cosmetology field at least.
In existing injection needles head, all adopt sqtructural adhesive that needle tubing is fixed on an end of conical tube needle stand, conical tube does not have groove in this port or near it, does not have opening yet.Under the not only thick but also long situation of needle tubing, utilize point gum machine or manually-operated and select suitable sqtructural adhesive all can accomplish the needle tubing steady job high-quality on this needle stand, efficiently, and it is unimpeded to guarantee to insert an end of needle tubing.On the contrary, under the not only thin but also short situation of needle tubing, if still on the needle stand of this structure, adopt the technique for fixing of existing needle tubing, needle point one end or an end that inserts needle tubing are all very easily stopped up by sqtructural adhesive and become waste product.
Existing disposable syringe is injection needle and injection tube is made respectively, the needle stand of injection needle and the output interface of injection tube is fitted together during use again, has both reduced the production efficiency of syringe, has increased the loaded down with trivial details property that syringe uses again temporarily.
In addition, have only a piston and coupled push rod in the injection tube of existing disposable syringe, adopt forefinger and middle finger to clamp injection tube during use usually, utilize the thumb press push rod to implement injection simultaneously.This mode is very beneficial for medical personnel intramuscular injection is carried out at positions such as patient's buttocks, if but in the medical cosmetology field Intradermal or subcutaneous shallow-layer are carried out meticulous operation, can bring inconvenience to user undoubtedly.
The utility model content
The technical problem that (one) will solve
The primary technical problem that this utility model will solve is how under the not only thin but also short situation of needle tubing, to utilize high-quality on the needle stand of sqtructural adhesive at disposable syringe, fixing needle tubing efficiently, and guarantees that needle tubing is not blocked; The technical problem that further will solve is to reduce miniature syringe needle as far as possible to thrust pain that human body brings and to the damage of skin, improve the uniformity and the safety coefficient of injection; The operation ease of syringe further, is provided.
(2) technical scheme
In order to solve the problems of the technologies described above; This utility model provides a kind of disposable micro injection needle; Comprise needle tubing and coupled needle stand, said needle tubing is used for fluid transfer and puncture, and said needle stand is used for fixing needle tubing and connects the syringe output interface; Said needle tubing one end is a needle point, and the other end inserts the needle stand port of export; Said needle stand is the hollow pipe that two ends communicate; Its arrival end connects the syringe output interface; Offer at least one opening and/or groove on the tube wall of its port of export; Be filled with sqtructural adhesive in said opening and/or the groove, said sqtructural adhesive is wrapped in the needle tubing outside and is fixed in the needle stand.
Wherein, said needle tubing has at least two, forms the needle tubing array; The port of export place of said needle stand is provided with and corresponding locating slot of needle tubing number or outlet, constitutes and corresponding locating slot array of needle tubing array or outlet array.
Wherein, said needle point end has first inclined-plane, and this first inclined-plane and needle tubing axially acutangulate angle; Said first inclined-plane is an ellipse ring surface, and itself and the axial angle of needle tubing are 5 °-65 °.
Wherein, said first inclined-plane is cut one section arc surface at least and makes its top have wedge angle.
Wherein, top, said first inclined-plane has second inclined-plane, and the axial angle of second inclined-plane and needle tubing is greater than first inclined-plane and the axial angle of needle tubing, and the axial angle of second inclined-plane and needle tubing is 10 °-75 °.
Wherein, said second inclined-plane is cut one section arc surface at least and makes its top have wedge angle.
Wherein, the external diameter of said needle tubing is 100 microns-500 microns, and internal diameter is 30 microns-300 microns; The port of export of said needle stand is 0.2 millimeter-16 millimeters to the distance of needle point.
Wherein, said needle stand outer wall is provided with screw thread, and corrugated tubing is installed on the screw thread, is used to regulate the needle tubing maximum and thrusts the degree of depth.
This utility model also provides a kind of syringe based on above-mentioned disposable micro injection needle, and it comprises: have the injection tube of metering scale, be arranged on piston and the push rod that links to each other with piston in the injection tube; The outfan of said injection tube links to each other with the arrival end of needle stand, and both integral types are made or split type making.
This utility model provides a kind of syringe based on above-mentioned disposable micro injection needle again; It comprises: the injection tube with metering scale; Be provided with first piston in the liquor piping of injection tube; The injection tube sidewall is provided with the piston button, offers communication passage between said first piston and the piston button, is filled with liquid or flexible body or elastomer in the said communication passage; The outfan of said injection tube links to each other with the arrival end of needle stand, and both integral types are made or split type making.
Wherein, said piston button is vertical or favour injection tube and axially be provided with.
Wherein, in the said liquor piping, the opposite side of communication passage is provided with second piston, and said second piston and first piston lay respectively at the both sides of communication passage; The said second piston opposite side is provided with stuck-module, is used to limit second position of piston.
Based on above-mentioned integral type syringe, this utility model provides corresponding prefilled syringe, is filled with medicinal liquid for use in the said injection tube, and said syringe needle place is equipped with the sealing helmet.
Based on above-mentioned split type syringe, this utility model provides corresponding prefilled syringe, is filled with medicinal liquid for use in the said injection tube, and the outfan of said injection tube seals or be equipped with the sealing helmet.
(3) beneficial effect
The disposable micro injection needle that technique scheme provided; Needle tubing is very thin, short and small, firm; Needle point is sharp and small, can utilize point gum machine or artificial coated structure adhesive high-quality, efficiently needle tubing is fixed on the needle stand, and can guarantee the unimpeded of needle tubing; A plurality of needle tubing rules are provided with, and form the needle tubing array, can obviously improve the efficient and the uniformity of injecting liquid drug.
The syringe that technique scheme provided, the integral type syringe unites two into one into the needle stand of miniature injection needle and injection tube as a whole, can obviously enhance productivity, reduce manufacturing cost, also is more convenient for simultaneously using; Structure with syringe of piston button more meets people's the custom that holds a pen: adopt thumb and middle finger to hold injection tube; Utilize forefinger to push its surperficial piston button and just can implement injection flexibly and easily, the output interface of this syringe also can directly link to each other with the needle stand of existing common syringe needle and implement injection; Link to each other with the needle stand of above-mentioned miniature injection needle, this syringe is more suitable for little, the demanding medical cosmetology of ID field.
The prefilled syringe that technique scheme provided; Injection tube inside be equipped with have treatment, the liquid of health care or effects of beautification and nourishing face; During use the sealing helmet is cut off or taken off to the output interface of sealing; Directly connect above-mentioned miniature injection needle and just can implement safe, not hemorrhage, painless, Wicresoft, convenience, trace injection accurately,, must cause evident in efficacy and can shorten the course of treatment greatly owing to the medicament focus of going directly to epidermis focuses such as comedos.
The miniature injection needle of above-mentioned scenarios, integral type and split type syringe and prefilled syringe all can adopt the conventional medical material manufacturing of existing sophisticated processing technique and regulation; Both having can be used as independent device is used in combination with following Related product with existing; Use also can mutually combine; Be expected to fill up the blank in related application field, thereby create huge economic benefit and social benefit, for human beings'health and good life are contributed share.
Description of drawings
Fig. 1 is a kind of structure cutaway view with miniature injection needle of single needle tubing among this utility model embodiment 1;
Fig. 2 is another kind of structure cutaway view with miniature injection needle of single needle tubing among this utility model embodiment 1;
Fig. 3 is a kind of structure cutaway view with miniature injection needle of needle tubing array among this utility model embodiment 1;
Fig. 4 is a kind of structure cutaway view with miniature injection needle of needle tubing array and corrugated tubing among this utility model embodiment 1;
Fig. 5 is the structural representation of a kind of needle point among this utility model embodiment 1;
Fig. 6 is the structural representation of another kind of needle point among this utility model embodiment 1;
Fig. 7 is the structural representation of another needle point among this utility model embodiment 1;
Fig. 8 is the structural representation of another needle point among this utility model embodiment 1;
Structural representation when Fig. 9 installs on the ordinary syringe output interface for a kind of miniature injection needle among this utility model embodiment 1;
Figure 10 is a kind of structure cutaway view with integral type syringe of needle tubing array and corrugated tubing among this utility model embodiment 2;
Figure 11 is another kind of structural representation with integral type syringe of needle tubing array among this utility model embodiment 2;
Figure 12 is a kind of structure cutaway view with split type syringe of piston button among this utility model embodiment 3;
Figure 13 is another kind of structure cutaway view with split type syringe of piston button among this utility model embodiment 3
Structural representation when Figure 14 installs on the split type syringe output interface with piston button for a kind of miniature injection needle among this utility model embodiment 3;
Figure 15 is the structure cutaway view of a kind of prefilled syringe based on the split type syringe with piston button among this utility model embodiment 4;
Figure 16 is the structure cutaway view of another kind of prefilled syringe based on the split type syringe with piston button among this utility model embodiment 4;
Figure 17 is the structure cutaway view of another kind of prefilled syringe based on the integral type syringe with piston button among this utility model embodiment 4.
Wherein, 1: needle tubing; 2: needle stand; 3-1: opening; 3-2: groove; 4: sheath; 5: needle point, 5a: first inclined-plane; 5b: second inclined-plane; 5c: wedge angle; 6: locating slot array or outlet array; 7: corrugated tubing; 8: screw thread; 9: output interface; 10: injection tube; 11: push rod; 12: piston; 12-1: first piston; 12-2: second piston; 13: the piston button; 14: liquid; 15: the piston inlet; 16: stuck-module; 17: injection; 18: the sealing helmet; 19: the output interface of sealing.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment, the specific embodiment of this utility model is described in further detail.Following examples are used to explain this utility model, but are not used for limiting the scope of this utility model.
Fig. 1 shows a kind of disposable micro injection needle of present embodiment, and this miniature injection needle comprises miniature needle tubing 1, needle stand 2, opening 3-1 and sheath 4.One end of miniature injection needle is the needle tubing 1 that is used for fluid transfer and puncture, and the other end is the needle stand 2 that is used for fixing needle tubing 1 and connects the syringe output interface; One end of said needle tubing 1 is a needle point 5; Said needle stand 2 is one section hollow pipe that two ends communicate; Its arrival end is used to connect the output interface of syringe; Near having an opening 3-1 on the tube wall of the port of export at least; Interstitital texture adhesive in the opening 3-1, sqtructural adhesive is wrapped on needle tubing 1 in the needle stand 2, and needle tubing 1 and needle stand 2 are connected to an integral body; Said sheath 4 is installed in the syringe needle end, has the effect of protection needle tubing and needle point.
Disposable micro injection needle shown in Fig. 2; Similar with the disposable micro injecting head structure shown in Fig. 1; Its difference part is: have a groove 3-2 on the tube wall of needle stand 2 ports of export at least, interstitital texture adhesive in the groove 3-2 is used for fixing and connects needle tubing 1 and needle stand 2.
As shown in Figure 3; One end of miniature injection needle is provided with one group of needle tubing array; Said needle tubing array comprises two needle tubings 1 at least, and the needle tubing 1 of needle tubing array is assembled according to certain rule and spacing, forms the needle tubing array of single row or multiple rows; The number of every pricking with needle pipe is identical or different, is used to improve the uniformity of liquid medicine injection.In the needle tubing array structure; One end of each needle tubing 1 inserts the port of export of needle stand 2; Said port of export place has locating slot array or outlet array 6; Locating slot or outlet number that locating slot array or outlet array 6 are comprised are equal to or greater than the needle tubing number that the needle tubing array is comprised, and a plurality of locating slots or the outlet of locating slot array or outlet array 6 are arranged according to certain rule and spacing, form the locating slot array or the outlet array 6 of single row or multiple rows; The number of every registration groove or outlet is identical or different, places a needle tubing 1 in each locating slot or the outlet.
Use for ease,, on needle stand 2, can be provided with and have the needle point of adjusting 5 maximums and thrust the location structure of the degree of depth especially for syringe needle with needle tubing array.Preferably, as shown in Figure 4, screw thread 8 is set on the outer wall of needle stand 2, one section corrugated tubing 7 is installed on the screw thread 8, screw thread 8 is suitable with corrugated tubing 7, can regulate needle tubing 1 through rotation corrugated tubing 7 and expose the length outside the corrugated tubing 7.
Thrust pain that human body skin brings and the damage that skin is caused in order to reduce syringe needle, need the strict structure that needle point is set.
Fig. 5 shows a kind of structure of needle point, particularly, has formed one first inclined-plane 5a in the end of needle point 5, and the first inclined-plane 5a and needle tubing 2 axially acutangulate the formation needle point, and the first inclined-plane 5a is shaped as ellipse ring surface, and the scope of said acute angle is 5 °-65 °.
Fig. 6 shows the structure of another kind of needle point; Particularly; On 5a basis, first inclined-plane shown in Figure 5; Formed the second inclined-plane 5b at the top of the first inclined-plane 5a, the second inclined-plane 5b can be through going a part to form the first inclined-plane 5a top cut, and the second inclined-plane 5b axially becomes 10 ° of-75 ° of angles with needle tubing 2.
Fig. 7 shows the structure of another needle point, particularly, on 5a basis, first inclined-plane shown in Figure 5, the first inclined-plane 5a is cut one section arc surface at least, makes it form wedge angle 5c on needle point 5 tops.
Perhaps, as shown in Figure 8, on 5b basis, second inclined-plane shown in Figure 6, the first inclined-plane 5a and the second inclined-plane 5b all are cut one section arc surface at least, make it form wedge angle 5c on needle point 5 tops.
The specification of needle tubing 1 or size should be suitable for Intradermal, subcutaneous, muscle or intravenous injection, and as preferred version, the external diameter of said needle tubing 1 is 100 microns-500 microns, and internal diameter is 30 microns-300 microns; The port of export of said needle stand 2 is 0.2 millimeter-16 millimeters to the distance of needle point 5.
Said sqtructural adhesive is medical sqtructural adhesive, includes but not limited to various structure glue, the ultra-violet curing glue of room temperature or heat cure.
Said miniature injection needle can adopt the medical material of sophisticated in the industry process technology and regulation to make in batches.The concrete shape of needle stand 2 and structure depend on the output interface of the syringe of purposes and application; As a kind of selection; It can directly link to each other with the output interface of existing general disposable syringe; As shown in Figure 9, syringe needle links to each other with the output interface 9 of injection tube 10, and syringe carries out the injection of medicinal liquid through promoting push rod 11.
In the present embodiment, needle tubing is very thin, short and small, firm, and needle point is sharp and small, can utilize point gum machine or manually-operated high-quality, be fixed on the needle stand efficiently, and can guarantee the unimpeded of needle tubing; A plurality of needle tubing rules are provided with, and form the needle tubing array, can obviously improve the efficient and the uniformity of injecting liquid drug.
Shown in Figure 10 and 11; The integral type syringe of present embodiment comprises injection tube 10, piston 12 and the push rod 11 that does not have output interface but metering scale is arranged, the structure annexation of piston 12 and push rod 11 and piston 12 and the structure of injection tube 10 be provided with common syringe in relation and the prior art that structure is set is identical.Injection tube 10 unites two into one with the needle stand 2 of miniature injection needle, adopts integral type to make, and this integral structure setting can adopt the medical material of sophisticated in the industry process technology and regulation to make in batches and assemble.
Present embodiment can obviously improve production efficiency, the reduction manufacturing cost of syringe, also is more convenient for simultaneously using.
Embodiment 3
Shown in figure 12; The split type syringe that present embodiment has the piston button comprises the injection tube 10 with metering scale, and injection tube 10 ends have the output interface 9 that is used to connect syringe needle, are provided with piston 12 in the liquor piping of injection tube 10; Injection tube 10 sidewalls are provided with piston button 13; Offer communication passage between piston 12 and the piston button 13, be filled with liquid 14 or flexible body or elastomer in the communication passage, piston button 13 is vertical or favour injection tube 10 and axially be provided with.In when operation, do lengthwise movement and can promote the inner piston 12 of injection tube and do transverse movement through pushing said piston button 13 downwards, thereby medicinal liquid is implemented injection.The split type syringe of present embodiment links to each other with needle stand 2 through output interface 9, has to utilize piston promote to pack into medicinal liquid in the injection tube to implement the function of injecting through needle tubing.
Shown in figure 13, be provided with the syringe of another kind of structure, particularly; In liquor piping; The both sides of communication passage are respectively arranged with the first piston 12-1 and the second piston 12-2, and first piston 12-1 contacts with the interior medicinal liquid of communication passage, and the second piston 12-2, one side contacts with the interior liquid 14 of communication passage; Opposite side is provided with stuck-module 16, is used to limit the position of the second piston 12-2.
Have the integral type syringe of piston button and the structural similarity of above-mentioned split type syringe shown in Figure 12 and 13, difference is that its injection tube and needle stand unite two into one and becomes one.
The syringe that present embodiment has the piston button can adopt the medical material of sophisticated in the industry process technology and regulation to make in batches and assemble.For structure shown in figure 12, can from output interface 9 or piston button 13 positions piston 12 be pushed into desired location earlier, the liquid 14 in place, piston button 13 positions filling communication passage is loaded onto piston button 13 at last then.For syringe construction shown in figure 13; Can be earlier the first piston 12-1 and the second piston 12-2 be pushed into desired location from piston inlet 15; And adopt glue or stuck-module 16 with 15 sealings of piston inlet; Locate the liquid 14 of filling piston space then in piston button 13 positions on injection tube 10 surfaces, load onto piston button 13 at last.The structure of the syringe after assembling is accomplished is shown in figure 14.
Structure with syringe of piston button more meets people's the custom that holds a pen: adopt thumb and middle finger to hold injection tube, utilize forefinger to push its surperficial piston button and just can implement injection flexibly and easily.The output interface of this split type syringe can directly link to each other with the needle stand of existing common syringe needle and implement injection; Link to each other with the needle stand of above-mentioned miniature injection needle, this syringe is more suitable for little, the demanding medical cosmetology of ID field.
Figure 15,16 and 17 show respectively present embodiment in the injection tube 10 of split type syringe or integral type syringe in advance fill have the structural representation of the injection 17 of treatment, health care or effects of beautification and nourishing face.
For split type syringe shown in figure 15, can and build sealing helmet 18 from output interface 9 canned injection 17.For split type syringe shown in figure 16; Can be earlier from the piston 15 canned injection 17 that enter the mouth; Then first piston 12-1 and the second piston 12-2 are pushed into desired location and adopt glue or stuck-module 16 with 15 sealings of piston inlet; Liquid 14 in place, the piston button 13 positions filling communication passage on injection tube 10 surfaces is loaded onto piston button 13 at last at last.Among Figure 16, the output interface of syringe is the output interface 19 of sealing.For integral type syringe shown in figure 17, can adopt and the above-mentioned identical canned injection of method of split type syringe shown in Figure 16.
The prefilled syringe of present embodiment; Injection tube inside be equipped with have treatment, the liquid of health care or effects of beautification and nourishing face; Take off the sealing helmet during use and maybe the output interface of sealing is cut off the above-mentioned miniature injection needle of back connection; Just can implement safe, not hemorrhage, painless, Wicresoft, convenience to epidermis focuses such as comedos, trace injects accurately, owing to the medicament focus of going directly, must cause evident in efficacy and can shorten the course of treatment greatly.
The described miniature injection needle of the foregoing description, integral type and split type syringe and prefilled syringe all can adopt the conventional medical material manufacturing of existing sophisticated processing technique and regulation; Both having can be used as independent device is used in combination with following Related product with existing; Use also can mutually combine; Be expected to fill up the blank in related application field, thereby create huge economic benefit and social benefit, for human beings'health and good life are contributed share.
The above only is the preferred implementation of this utility model; Should be understood that; For those skilled in the art; Under the prerequisite that does not break away from this utility model know-why, can also make some improvement and replacement, these improvement and replacement also should be regarded as the protection domain of this utility model.
Claims (14)
1. the disposable micro injection needle comprises needle tubing and coupled needle stand, and said needle tubing is used for fluid transfer and puncture; Said needle stand is used for fixing needle tubing and connects the syringe output interface; It is characterized in that said needle tubing one end is a needle point, the other end inserts the needle stand port of export; Said needle stand is the hollow pipe that two ends communicate; Its arrival end connects the syringe output interface; Offer at least one opening and/or groove on the tube wall of its port of export; Be filled with sqtructural adhesive in said opening and/or the groove, said sqtructural adhesive is wrapped in the needle tubing outside and is fixed in the needle stand.
2. disposable micro injection needle as claimed in claim 1 is characterized in that said needle tubing has at least two, forms the needle tubing array; The port of export place of said needle stand is provided with and corresponding locating slot of needle tubing number or outlet, constitutes and corresponding locating slot array of needle tubing array or outlet array.
3. disposable micro injection needle as claimed in claim 1 is characterized in that, said needle point end has first inclined-plane, and this first inclined-plane and needle tubing axially acutangulate angle; Said first inclined-plane is an ellipse ring surface, and itself and the axial angle of needle tubing are 5 °-65 °.
4. disposable micro injection needle as claimed in claim 3 is characterized in that, said first inclined-plane is cut one section arc surface at least makes its top have wedge angle.
5. disposable micro injection needle as claimed in claim 3; It is characterized in that; Top, said first inclined-plane has second inclined-plane, and the axial angle of second inclined-plane and needle tubing is greater than first inclined-plane and the axial angle of needle tubing, and the axial angle of second inclined-plane and needle tubing is 10 °-75 °.
6. disposable micro injection needle as claimed in claim 5 is characterized in that, said second inclined-plane is cut one section arc surface at least makes its top have wedge angle.
7. disposable micro injection needle as claimed in claim 1 is characterized in that, the external diameter of said needle tubing is 100 microns-500 microns, and internal diameter is 30 microns-300 microns; The port of export of said needle stand is 0.2 millimeter-16 millimeters to the distance of needle point.
8. disposable micro injection needle as claimed in claim 1 is characterized in that, said needle stand outer wall is provided with screw thread, and corrugated tubing is installed on the screw thread, is used to regulate the needle tubing maximum and thrusts the degree of depth.
9. based on the syringe of each described disposable micro injection needle among the claim 1-8, it is characterized in that, comprising: have the injection tube of metering scale, be arranged on piston and the push rod that links to each other with piston in the injection tube; The outfan of said injection tube links to each other with the arrival end of needle stand, and both integral types are made or split type making.
10. based on the syringe of each described disposable micro injection needle among the claim 1-8; It is characterized in that; Comprise: have the injection tube of metering scale, be provided with first piston in the liquor piping of injection tube, the injection tube sidewall is provided with the piston button; Offer communication passage between said first piston and the piston button, be filled with liquid or flexible body or elastomer in the said communication passage; The outfan of said injection tube links to each other with the arrival end of needle stand, and both integral types are made or split type making.
11. syringe as claimed in claim 10 is characterized in that, said piston button is vertical or favour injection tube and axially be provided with.
12. syringe as claimed in claim 10 is characterized in that, in the said liquor piping, the opposite side of communication passage is provided with second piston, and said second piston and first piston lay respectively at the both sides of communication passage; The said second piston opposite side is provided with stuck-module, is used to limit second position of piston.
13. the prefilled syringe based on the said syringe of claim 9 is characterized in that, is filled with medicinal liquid for use in the said injection tube, said syringe needle place is equipped with the sealing helmet, or the outfan of said injection tube seals or be equipped with the sealing helmet.
14. the prefilled syringe based on the said syringe of claim 10 is characterized in that, is filled with medicinal liquid for use in the said injection tube, said syringe needle place is equipped with the sealing helmet, or the outfan of said injection tube seals or be equipped with the sealing helmet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120303267XU CN202223682U (en) | 2011-08-18 | 2011-08-18 | Disposable injection micro-needle and syringe thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120303267XU CN202223682U (en) | 2011-08-18 | 2011-08-18 | Disposable injection micro-needle and syringe thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202223682U true CN202223682U (en) | 2012-05-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120303267XU Withdrawn - After Issue CN202223682U (en) | 2011-08-18 | 2011-08-18 | Disposable injection micro-needle and syringe thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102309797A (en) * | 2011-08-18 | 2012-01-11 | 清华大学 | Disposable micro injection needle and syringe thereof |
| CN103341228A (en) * | 2013-07-19 | 2013-10-09 | 清华大学 | Disposable multi-needle-tube injection needle head and pre-filling syringe comprising injection needle head |
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2011
- 2011-08-18 CN CN201120303267XU patent/CN202223682U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102309797A (en) * | 2011-08-18 | 2012-01-11 | 清华大学 | Disposable micro injection needle and syringe thereof |
| CN102309797B (en) * | 2011-08-18 | 2013-11-06 | 清华大学 | Disposable micro injection needle and syringe thereof |
| CN103341228A (en) * | 2013-07-19 | 2013-10-09 | 清华大学 | Disposable multi-needle-tube injection needle head and pre-filling syringe comprising injection needle head |
| CN103341228B (en) * | 2013-07-19 | 2015-08-12 | 清华大学 | A kind of prefilled syringe |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120523 Effective date of abandoning: 20131106 |
|
| RGAV | Abandon patent right to avoid regrant |