CN102488948B - Self-destruction syringe with medicine dissolving region - Google Patents
Self-destruction syringe with medicine dissolving region Download PDFInfo
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- CN102488948B CN102488948B CN 201110431752 CN201110431752A CN102488948B CN 102488948 B CN102488948 B CN 102488948B CN 201110431752 CN201110431752 CN 201110431752 CN 201110431752 A CN201110431752 A CN 201110431752A CN 102488948 B CN102488948 B CN 102488948B
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Abstract
The invention relates to a high-reliability self-destruction syringe with a medicine dissolving region. The high-reliability self-destruction syringe comprises an outer sleeve (1), a core rod (2), a spring leaf (3), a piston (4), a needle tube (5) and a sheath (6), wherein a hollow column (31) with an assembly notch is arranged at the upper part of the spring leaf (3), the column body of the hollow column (31) is circular or has ridges in vertical direction, inner clamps (32) and outer clamps (33) are arranged at the lower part of the spring leaf at intervals, the inner clamps (32) incline inwards and are clamped at the tapered bottom (241) of a conical step of a corresponding clamped structure of the core rod (2), and the outer clamps (33) extend outwards and are clamped on the inner wall of the outer sleeve (1). Each outer clamp (33) is provided with at least two jaws (331) piercing into the inner wall of the outer sleeve (1) so as to prevent recession, not all the jaws (331) are same in length, the jaw ends of all the jaws (331) are at least distributed on two different circumferences sharing the same axial center with the spring leaf (3), and the depths of the jaws (331) piercing into the inner wall of the outer sleeve are different so that the jaws (331) are clamped in the inner wall of the outer sleeve (1) hierarchically and progressively. The high-reliability self-destruction syringe disclosed by the invention is convenient to manufacture and high in safety.
Description
Technical field
The present invention relates to a kind of medical apparatus and instruments, especially a kind of disposable syringe that can be used for the powder medicament is carried out molten medicine injection, specifically a kind of high-reliability self-destruction syringe with molten medicine district.
Background technology
Traditional disposable syringe because some medical institutions' mismanagements or interests drive, is recovered, peddles and reuses, thereby the secondary cross infection of pathogenic bacteria occurs, makes the diseases such as hepatitis B, AIDS obtain propagation.For limiting the generation of these misconducts, stop the iatrogenic infection of cross infection and disease, the tissues such as World Health Organization (WHO), United Nations Children's Fund have proposed can destroy voluntarily after use or locked not reusable self-destruction syringe.Chinese government's active response, promise was implemented in full the plan that self-destruction syringe carries out vaccine injection in 2005.
At present, occurred the self-destruction syringe of many kinds on the market, but these self-destruction syringes remain a shortcoming, namely can only carry out after the imbibition shot just automatically damaging shape, namely can only satisfy water preparation class injection and inject use.Yet in practical clinical, often need the powder injection is injected, well-known, the powder injection can not be directly used in injection, must draw first diluent by syringe and be expelled in the powder, and that draws after it is dissolved fully injects again.So, the injection of a powder injection but needs a conventional syringe and an above-mentioned self-destruction syringe jointly to finish.So not only bring inconvenience to medical worker's operation, also greatly increased simultaneously the medical expense of accepting the injector.For this reason, although Chinese patent CN 101314062A discloses a kind of self-destruction syringe of one-time medicine dissolving and has solved to a certain extent the problems referred to above, so that dilution and injection can be finished in a disposable syringe, but still there is following deficiency in it: 1. a syringe should be able to guarantee once can draw the capacity diluent that satisfies nominal capacity, and Fig. 5 component B shows when this syringe is drawn diluent the piston nominal capacity line 0.5ml that can only just pull back at most in this patent specification, the syringe a bit of blank air of appearance that front end always can't be got rid of when drawing liquid of justing think, shown by this figure: the shared volume of air adds that the medicinal liquid volume sum that is drawn to just equals the volume of 0.5ml, the design of this patent can not be satisfied the diluent that nominal capacity is satisfied in disposable absorption in other words, draw diluent if carry out secondary supplement, then can produce dose error, reason is that syringe clear scale in China industry standard YY 0573.3 of this fixed dosage vaccine injection only has 0 graduation mark and a nominal capacity graduation mark to form, and has not allowed calibration capacity line between two lines.This must bring very large inconvenience to medical personnel's operation.2. a good product also should be taken into account: be convenient to produce, can be fit to the automatic machinery assembling, to produce quality control in enormous quantities stable etc.A no small slit that can hold lower non return part in being designed to, its core bar of the patent of the disclosure is arranged, and the syringe core rod that is used for vaccine injection is originally just thinner, in addition hollow in the core bar, this meeting is so that the core bar deliquescing causes the push-and-pull bad stability, non return part is assemblied in the slit of core bar simultaneously, the assembling difficulty is not easy to the automatic assembling assembling.3. the repeatedly motive position of core bar lacks caution design, and the careful medical worker of a specialty also very possible careless manipulation causes syringe and shifts to an earlier date self-destruction.In addition, present such syringe is non-return weak effect of ubiquity or the large problem of injection resistance also, because retaining reed is to thrust outer casing inner wall by several claws that are on the same circumference to prevent what core bar from pulling back, its all claw length of claw on the same circumference are that design is consistent, it is dark that the length of claw Design of length is namely thrust the outer casing inner wall degree of depth, then the injector to inject resistance is just very large, such sliding performance of syringe often just satisfies the minimum requirements of stipulating in the industry standard, particularly change the injection force that medical personnel are accustomed to using, be not easy to medical personnel's operation; The short outer casing inner wall depth as shallow of namely thrusting of claw Design of length, then the retaining power of reed is little, the core bar of after injector to inject is complete, pulling back, overcoat front end and piston space at syringe can form the space that can draw medicinal liquid, this space is for part dose injection enough (such as the dosage of 0.05ml, 0.1ml), very large potential safety hazard will be caused if be used after the lawless person reclaims, self-destruction truly can not be realized.The solution that this be there is no at present.
Summary of the invention
The objective of the invention is to be forbidden, make inconvenience and retaining weak effect or the large problem of injection resistance for the dosage that existing disposable molten medicine self-destruction syringe exists, design a kind of high-reliability self-destruction syringe with molten medicine district.
Technical scheme of the present invention is:
A kind of high-reliability self-destruction syringe with molten medicine district, comprise overcoat 1, core bar 2, reed 3, piston 4, needle tubing 5 and sheath 6, described overcoat 1 front end is provided with needle stand 11, needle stand 11 is injected into one or gluing being integrated with overcoat 1, described needle tubing 5 is fixed in the needle stand 11, described core bar 2 places overcoat 1, it is characterized in that described core bar 2 front ends are provided with self-destruction boss 21 and self-destruction characteristic district 26, piston 4 is set on the core bar end of self-destruction boss 21 front ends of core bar 2, core bar 2 is provided with the upper by card structure 22 and lower to card structure 24 of control reed 3 motions, upper by card structure 22 be circular cone step with core bar 2 concentrics by card structure 24 down, upper is that one or more pile up neatly folded contour circular cone step from front to back successively by card structure 22, be a plurality of from front to back folded contour circular cone steps of buttress successively by card structure 24 down, upper by the end diameter of the circular cone step in the card structure 22, outside diameter respectively with lower by the circular cone step end diameter in the card structure 24, outside diameter equates; Core bar 2 upper is by card structure 22 and formed molten medicine district 23 between the card structure 24 down; Reed 3 is installed on described lower on the card structure 24 movably.Described reed 3 tops are the open tubular column 31 with the assembling breach, open tubular column 31 cylinders are that circle shape or vertical direction are stupefied shape, the reed bottom is arranged at intervals with interior card 32 and wild card 33, interior card 32 introversions be used for being stuck in core bar 2 correspondence by at the bottom of the cone of the circular cone step of card structure, wild card 33 abductions are used for being stuck in the inwall of overcoat 1.Each is provided with described wild card 33 at least in the inwall that two pieces of claws 331 thrust overcoat 1 preventing and moves back thereafter, the length of all claws 331 is not quite identical, the pawl end of all claws 331 is distributed in from reed 3 at least as on two of the concentric different circumference, and its inwall degree of depth of thrusting overcoat 1 is that the shallow gradual inwall that is stuck in overcoat 1 that deeply is level that has is arranged.Syringe before use, reed 3 is assemblied in described lower on the card structure 24, what its rigging position made card 32 bottom surfaces to 23 lower ends, molten medicine district in the reed equals the distance A of (can be slightly larger than, namely be not less than) self-destruction boss 21 bottoms to 23 upper ends, molten medicine district apart from B.
Described wild card 33 is 15～25 degree with the angle of its axial line.
Described self-destruction boss 21 cross sections are circular, and its diameter is greater than the diameter of the open tubular column 31 on reed 3 tops, and less than the diameter of overcoat 1 inner chamber.Self-destruction boss 21 and upper by formation self-destruction characteristic district 26 between the card structure 22, self-destruction characteristic district 26 is cylindric, its diameter is equated by card structure 22 and lower end diameter by card structure 24 with upper, its length C is slightly larger than reed 3 interior cards 32 bottom surfaces to the vertical dimension D of reed 3 end faces, but so that syringe before human body is carried out injecting liquid drug the pumpback core bar the medicinal liquid front end form a space that is used for observing blood back (most basic function as syringe is: but aerofluxus, observable blood back and injection), and this spatial volume is not more than the specified minimum dose 0.05ml of vaccine injection half.
Described molten medicine district 23 is had a painted molten medicine district warning line 25 with upper by card structure 22 intersections, injects the position that front all molten medicine operations all must not be pulled through this warning line on the core bar reed 3 to warn unofficial absorption medicinal liquid.
Described molten medicine district 23 is decided by the requirement of medicinal liquid amount of dilution by the position of the intersection of card structure 24 with lower.When the capacity diluent of drawing is for the first time injected (this moment, piston was pushed to the back cover end of overcoat inner chamber) when complete, the starting bit that reed 3 just is subjected to lower resistance by first circular cone step 242 of card structure to proceed to the self-destruction of predetermined realization injector to inject is put, namely this moment, piston 4 was in the back cover end of overcoat 1 inner chamber, and reed 3 is in molten medicine district 23 and is in molten medicine district 23 with lower to the intersection of card structure 24 with interior and interior card 32 bottom surfaces; Molten medicine district 23 is one section level and smooth district without the circular cone step of core bar 2, these regional core bar 2 diameters are equated by card structure 22 and lower end diameter by the circular cone step of card structure 24 with upper, to remove the resistance that 32 pairs on card in the reed should the zone core bar, thereby realize to keep reed 3 in the molten medicine zone 23 of core bar 2 with interior and do not change the position that reed 3 is in overcoat 1 inner chamber and can repeatedly draw back and forth the diluent that pushes away in the core bar 2 suction powder, the generation of diluent and powder is fully perturbed to rapid dissolve complete.
The surface of described piston 4 is provided with at least two and is the sealing ring 41 of evagination with its integral body.
Described reed 3 tops open tubular column 31 be provided with the false boss 34 of being convenient to automatic assembling production usefulness.
Beneficial effect of the present invention:
1, with self-destroying function and molten medicine function by single disposable the finishing of syringe.
2, can require according to the medicinal liquid amount of dilution syringe of design different size, such as 0.05ml, 0.1ml, 0.2ml, 0.3ml, 0.4ml, 0.5ml etc.
3, claw pawl end by the design retaining reed is distributed on the different circumference from the reed concentric, be that the claw Design of length is not quite identical, thrusting the outer casing inner wall degree of depth is that the shallow gradual retaining that deeply is level that has is arranged, and the angle angle of redesign wild card and its axial line, so that carve right the best between claw and the outer casing inner wall, both guaranteed that syringe had the good sliding capability that conformance with standard requires, particularly do not change the injection force that the medical worker is accustomed to using, can not produce the disposable injection of syringe yet and use rear reed, core bar can retreat and make syringe that recycling risk be arranged.
4, before syringe is enabled, reed is assemblied in core bar lower can only be once to guarantee once can to draw the diluent that satisfies nominal capacity and guarantee by structural assigned position, what reed was assemblied in core bar in addition is also had an antihunt action down on the card structure, can not cause drawing medicinal liquid and produce dose error because the transportation concussion make reed produce displacement.
5, core bar is designed with molten medicine district, molten medicine district is designed with painted warning line, when syringe after for the first time the draw sufficient diluent injects powder fully, keep reed in the molten medicine district of core bar with interior and do not change the position that reed is in the overcoat inner chamber, can repeatedly draw back and forth and push away core bar with the diluent in the suction powder, diluent and powder be produced fully perturb to rapid dissolve complete.
6, because direct gluing being integrated of needle tubing and overcoat, make low-residual behind the injecting liquid drug, discard the harm that medicinal liquid causes society thereby reduce injection.
7, reed increases the false boss design (difficult point of automatic assembling is exactly: accessory to be assembled must have is convenient to the design of locating, sorting, otherwise accessory can be transmitted with unordered state, and even assemble not in place, the assembling put upside down, learies is increased), be convenient to location, ordering in the automatic assembling system, transmit, with the automatic Composition that is well on, at utmost reduce and scrap, increase production capacity, raise the efficiency.
Description of drawings
Fig. 1 is planar structure schematic diagram of the present invention (before using), and Fig. 1 (a) is contour structures schematic diagram of the present invention, and Fig. 1 (b) is the sectional structure schematic diagram of Fig. 1 (a).
Fig. 2 is jacket structure schematic diagram of the present invention, and Fig. 2 (a) is the structural representation of overcoat, and Fig. 2 (b) is the sectional structure schematic diagram of Fig. 2 (a).
Fig. 3 is the structural representation of core bar of the present invention.
Fig. 4 is the structural representation of reed of the present invention, and Fig. 4 (a) is the structural representation of facing of reed, and Fig. 4 (b) is the plan structure schematic diagram of (a), and Fig. 4 (c) is the backsight structural representation of reed.
Fig. 5 is the structural representation of piston of the present invention.
Fig. 6 is operating process schematic diagram of the present invention.
Among Fig. 1: 1, overcoat; 2, core bar; 3, reed; 4, piston; 5, needle tubing; 6, sheath; 11, needle stand; 12,0 graduation mark; 13, nominal capacity graduation mark; 21, self-destruction boss; 22, upper by card structure; 23, molten medicine district; 24, lower to card structure; 241, the circular cone step cone end; 25, molten medicine district warning line; 26, self-destruction characteristic district; 41, sealing ring;
Among Fig. 3: 242, lower to first circular cone step of structure;
Among Fig. 4: 31, open tubular column; 32, interior card; 33, wild card; 331, claw; 34, false boss.
The specific embodiment
The present invention is further illustrated below in conjunction with drawings and Examples.
Shown in Fig. 1-5.
A kind of high-reliability self-destruction syringe with molten medicine district comprises overcoat 1, core bar 2, reed 3, piston 4, needle tubing 5 and sheath 6, as shown in Figure 1.Described overcoat 1 front end is provided with needle stand 11, needle stand 11 is injected into one or gluing being integrated (Fig. 2) with overcoat 1, put outward and be provided with 0 graduation mark 12 and nominal capacity graduation mark 13, described needle tubing 5 is fixed in the needle stand 11, described core bar 2 places overcoat 1, the front end of core bar 2 is provided with self-destruction boss 21, self-destruction characteristic district 26, piston 4 is set on the core bar end of self-destruction boss 21 front ends of core bar 2, core bar 2 is provided with the upper by card structure 22 and lower to card structure 24 of control reed 3 motions, upper by card structure 22 be circular cone step with core bar 2 concentrics by card structure 24 down, upper is that one or more pile up neatly folded contour circular cone step from front to back successively by card structure 22, and lower is a plurality of folded contour circular cone steps of piling up neatly successively from front to back by card structure 24; Core bar 2 upper is by card structure 22 and formed molten medicine district 23 between the card structure 24 down; Reed 3 is installed on described lower on the card structure 24 movably.The top of described reed 3 is the open tubular column 31 with the assembling breach, open tubular column 31 cylinders are that circle shape or vertical direction are stupefied shape, the reed bottom is arranged at intervals with interior card 32 and wild card 33, interior card 32 introversions be used for being stuck in core bar 2 correspondence by at the bottom of the cone of the circular cone step of card structure, wild card 33 abductions are used for being stuck in the inwall of overcoat 1.Described self-destruction boss 21 cross sections are circular, and its diameter is greater than the diameter of the open tubular column 31 on reed 3 tops, and less than the diameter of overcoat 1 inner chamber.Self-destruction boss 21 and upper by formation self-destruction characteristic district 26 between the card structure 22, self-destruction characteristic district 26 is cylindric, its diameter is equated by card structure 22 and lower end diameter by card structure 24 with upper, its length C is slightly larger than reed 3 interior cards 32 bottom surfaces to the vertical dimension D of reed 3 end faces, but so that syringe before human body is carried out injecting liquid drug the pumpback core bar the medicinal liquid front end form a space that is used for observing blood back (most basic function as syringe is: but aerofluxus, observable blood back and injection), and this spatial volume is not more than the specified minimum dose 0.05ml of vaccine injection half.Described wild card 33 is 15～25 degree with the angle of axial line, to guarantee the anti-inflection power of wild card 33.Each is provided with wild card 33 at least in the inwall that two pieces of claws 331 thrust overcoat 1 preventing and moves back thereafter, connect with circular arc between the adjacent claw 331, the length of all claws 331 is not quite identical, the pawl end of all claws 331 is distributed in from reed 3 at least as on two of the concentric different circumference, its degree of depth of thrusting overcoat 1 inwall is that the shallow gradual inwall that is stuck in overcoat 1 that deeply is level that has is arranged, so that carve right the best between claw 331 and overcoat 1 inwall, both guaranteed that syringe had the good sliding capability that conformance with standard requires, particularly do not change the injection force that the medical worker is accustomed to using, guarantee that again reed 3 has good retaining power, can not produce the disposable injection of syringe use after core bar 2 can retreat and make syringe that recycling risk be arranged, as shown in Figure 4.Syringe before use, reed 3 is assemblied in described lower on the card structure 24, what its rigging position made card 32 bottom surfaces to 23 lower ends, molten medicine district in the reed equals the distance A of (can be slightly larger than, namely be not less than) self-destruction boss 21 bottoms to 23 upper ends, molten medicine district apart from B, as shown in Figure 1.During implementation, wild card 33 also can be designed to laciniation.For the ease of device, during implementation, also can reed 3 tops open tubular column 31 be provided with and be convenient to automation equipment it is assembled the false boss 34 of usefulness.
Details are as follows:
The cross section of core bar 2 can be circle, the front end of core bar 2 is provided with self-destruction boss 21, self-destruction characteristic district 26, piston 4 is set on the core bar end of self-destruction boss 21 front ends of core bar 2, core bar 2 is provided with the upper by card structure 22 and lower to card structure 24 of control reed 3 motions, upper by card structure 22 be circular cone step with core bar 2 concentrics by card structure 24 down, upper is that one or more pile up neatly folded contour circular cone step from front to back successively by card structure 22, lower is a plurality of folded contour circular cone steps of piling up neatly successively from front to back by card structure 24, upper by the end diameter of the circular cone step in the card structure 22, outside diameter respectively with lower by the circular cone step end diameter in the card structure 24, outside diameter equates, core bar 2 upper, the lower molten medicine district 23 that is provided with between the card structure, as shown in Figure 3.Reed 3 tops are the open tubular column 31 with the assembling breach, open tubular column 31 cylinders are that circle shape or vertical direction are stupefied shape, reed 3 bottoms 32 and 2 wild cards 33 of card that are top in 3 of downward-extension, wild card 33 abductions of reed 3 are stuck on the inwall of overcoat 1, interior card 32 introversions be stuck in core bar 2 correspondence by at the bottom of the cone of the circular cone step of card structure, interior card 32 is set in distance with wild card 33, such as Fig. 4, shown in Figure 1.Described molten medicine district 23 is decided by the requirement of medicinal liquid amount of dilution by the position of the intersection of card structure 24 with lower, when the capacity diluent of drawing is for the first time injected (this moment, piston 4 was pushed to the back cover end of overcoat 1 inner chamber) when complete, the starting bit that reed 3 just is subjected to lower resistance by first circular cone step 242 of card structure to proceed to the self-destruction of predetermined realization injector to inject is put, namely this moment, piston was in the back cover end of overcoat inner chamber, and reed 3 is in molten medicine district 23 and is in molten medicine district 23 with lower to the intersection of card structure 24 with interior and interior card 32 bottom surfaces; Molten medicine district 23 is one section level and smooth district without the circular cone step of core bar 2, these regional core bar 2 diameters are equated by card structure 22 and lower end diameter by the circular cone step of card structure 24 with upper, to remove the resistance that 32 pairs on card in the reed should the zone core bar, thereby realize to keep reed 3 in the molten medicine zone 23 of core bar 2 with interior and do not change the position that reed 3 is in overcoat 1 inner chamber and can repeatedly draw back and forth the diluent that pushes away in the core bar 2 suction powder, the generation of diluent and powder is fully perturbed to rapid dissolve complete.Described molten medicine district 23 is had a painted molten medicine district warning line 25 with upper by card structure 22 intersections, all this warning line on the core bar must not be pulled through reed 3 with all molten medicine operations before warning unofficial absorption medicinal liquid and injecting.
Syringe is before enabling, reed 3 is be assemblied in core bar 1 lower on the circular cone step of card structure 24, and equaling or the distance A of self-destruction boss 21 bottoms to 23 upper ends, molten medicine district that are slightly larger than core bar apart from B of interior card 32 bottom surfaces of reed 3 lower ends to lower end, molten medicine district, so that guarantee once can and can only a draw sufficient diluted lyophilized powder, guarantee that simultaneously diluent discharges the starting bit that complete rear reed 3 just is subjected to lower resistance by first circular cone step 242 of card structure to move forward to predetermined final realization injector to inject self-destruction and put.Because reed 3 and lower good fit of being assembled by the circular cone step of card structure 24 have the transportation antihunt action, can not cause drawing medicinal liquid generation dose error because the transportation concussion changes the reed rigging position in addition.At least be provided with the elastic seal ring 41 of two evaginations on the described piston 4, as shown in Figure 5.
Medicinal liquid after drawing dilution fully is when satisfying nominal capacity, reed just slips in the self-destruction characteristic district, be that syringe self-destruction merit will start at once with the beginning of medicinal liquid aerofluxus, injection, after injecting liquid drug is complete, reed arrives the final destination, core bar no better than the outer sleeve body length is subjected to the synergy of reed, self-destruction boss, outer casing inner wall locked in the inner chamber of overcoat cylindrical shell together with piston, can't recycling risk be arranged rollback generation syringe, realize thus the self-destruction of the real meaning of syringe.
The change in location of reed 3 as shown in Figure 6 in the use procedure of the present invention.
The part that the present invention does not relate to all prior art that maybe can adopt same as the prior art is realized.
Claims (5)
1. self-destruction syringe with molten medicine district, comprise overcoat (1), core bar (2), reed (3), piston (4), needle tubing (5) and sheath (6), described overcoat (1) front end is provided with needle stand (11), needle stand (11) is injected into one or gluing being integrated with overcoat (1), described needle tubing (5) is fixed in the needle stand (11), described core bar (2)
Place overcoat (1), it is characterized in that described core bar (2) front end is provided with self-destruction boss (21), self-destruction characteristic district (26), piston (4) is set on the core bar end of self-destruction boss (21) front end of core bar (2), core bar (2) is provided with the upper by card structure (22) and lower to card structure (24) of control reed (3) motion, upper by card structure (22) be circular cone step with core bar (2) concentric by card structure (24) down, upper is that one or more pile up neatly folded circular cone step from front to back successively by card structure (22), and lower is a plurality of folded circular cone steps of piling up neatly successively from front to back by card structure (24); Core bar (2) upper is by card structure (22) and formed molten medicine district (23) between the card structure (24) down, described molten medicine district (23) is had painted molten medicine district's warning line (25) with upper by card structure (22) intersection, injects the position that front all molten medicine operations all must not be pulled through this warning line (25) on the core bar (2) reed (3) to warn unofficial absorption medicinal liquid; Described molten medicine district (23) is decided by the requirement of medicinal liquid amount of dilution with lower position by the intersection of card structure (24); Reed (3) is installed on described lower on the card structure (24) movably; Described reed (3) top is the open tubular column (31) with the assembling breach, open tubular column (31) cylinder is that circle shape or vertical direction are stupefied shape, the reed bottom is arranged at intervals with interior card (32) and wild card (33), interior card (32) introversion be used for being stuck in core bar (2) correspondence by at the bottom of the cone of the circular cone step of card structure, wild card (33) abduction is used for being stuck in the inwall of overcoat (1); Each is provided with described wild card (33) at least in the inwall that two pieces of claws (331) thrust overcoat (1) preventing and moves back thereafter, the length of all claws (331) is different, the pawl end of all claws (331) is distributed in from reed (3) at least as on the different circumference of two of concentric, and all claws (331) integral body is the gradual inwall that is stuck in overcoat (1) of level; Syringe before use, reed (3) is assemblied in described lower on the card structure (24), and its rigging position makes the distance (B) of card (32) bottom surface to lower end, molten medicine district (23) in the reed be not less than the distance (A) of self-destruction boss (21) bottom to upper end, molten medicine district (23).
2. syringe according to claim 1 is characterized in that each described wild card (33) and the angle of its axial line are 15～25 degree.
3. syringe according to claim 1, it is characterized in that injecting when complete when the capacity diluent of drawing for the first time, reed (3) just is sent to the predetermined starting bit of syringe self-destruction that realizes and puts, and namely reed (3) is in molten medicine district (23) and is in molten medicine district (23) with lower to the intersection of card structure (24) with interior and interior card (32) bottom surface; Molten medicine district (23) is one section level and smooth district without the circular cone step of core bar (2), core bar (2) diameter that should level and smooth district is equated by card structure (22) and lower end diameter by the circular cone step of card structure (24) with upper, block (32) in the reed to the resistance of this zone core bar to remove, thereby realize to keep reed (3) in the molten medicine district (23) of core bar (2) with interior and do not change the position that reed (3) is in overcoat (1) inner chamber and can repeatedly draw back and forth the diluent that pushes away in core bar (2) the suction powder, the generation of diluent and powder is fully perturbed to rapid dissolve complete.
4. syringe according to claim 1, the surface that it is characterized in that described piston (4) are provided with at least two and are the sealing ring (41) of evagination with its integral body.
5. syringe according to claim 1 is characterized in that the open tubular column (31) on described reed (3) top is provided with the false boss (34) of being convenient to automatic assembling production usefulness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110431752 CN102488948B (en) | 2011-11-09 | 2011-12-21 | Self-destruction syringe with medicine dissolving region |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110351148 | 2011-11-09 | ||
| CN201110351148.6 | 2011-11-09 | ||
| CN 201110431752 CN102488948B (en) | 2011-11-09 | 2011-12-21 | Self-destruction syringe with medicine dissolving region |
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| CN102488948A CN102488948A (en) | 2012-06-13 |
| CN102488948B true CN102488948B (en) | 2013-01-23 |
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| CN 201110431752 Active CN102488948B (en) | 2011-11-09 | 2011-12-21 | Self-destruction syringe with medicine dissolving region |
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| CN103405834A (en) * | 2013-08-10 | 2013-11-27 | 江苏康友医用器械有限公司 | Self-destructive disposable syringe |
| CN112999468B (en) * | 2021-02-09 | 2023-07-04 | 上海康德莱医疗器械股份有限公司 | Safety syringe |
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| CN101444651A (en) * | 2008-12-23 | 2009-06-03 | 安徽省天康医疗用品有限公司 | Auto-disable syringe |
| CN202409725U (en) * | 2011-11-09 | 2012-09-05 | 柏保东 | High-reliability self-destruction syringe with medicament dissolving zone |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008058421A1 (en) * | 2006-11-13 | 2008-05-22 | Bai, Baodong | A single use self-destruction micro-syringe |
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|---|---|---|---|---|
| CN101314062A (en) * | 2007-06-01 | 2008-12-03 | 冯忠 | One-time medicine dissolving self-destructing injection syringe |
| CN101444651A (en) * | 2008-12-23 | 2009-06-03 | 安徽省天康医疗用品有限公司 | Auto-disable syringe |
| CN202409725U (en) * | 2011-11-09 | 2012-09-05 | 柏保东 | High-reliability self-destruction syringe with medicament dissolving zone |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102488948A (en) | 2012-06-13 |
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Application publication date: 20120613 Assignee: Anhui Tiankang Medical Products Co., Ltd. Assignor: Bai Baodong Contract record no.: 2013340000152 Denomination of invention: Self-destruction syringe with medicine dissolving region Granted publication date: 20130123 License type: Exclusive License Record date: 20131114 |
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Effective date of registration: 20151027 Address after: 239300 Anhui city of Chuzhou province Tianchang Xicheng District Tiankang Avenue South of Anhui Tiankang medical supplies Co. Ltd. Patentee after: Anhui Tiankang Medical Products Co., Ltd. Address before: 239300 Anhui city of Chuzhou province Tianchang Xicheng District Tiankang Avenue South of Anhui Tiankang medical supplies Co. Ltd. Patentee before: Bai Baodong |
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Address after: 239300 Anhui city of Chuzhou Province, Tianchang Road Economic Development Zone No. 228 Patentee after: ANHUI TIANKANG MEDICAL POLYTRON TECHNOLOGIES INC Address before: 239300 Anhui city of Chuzhou province Tianchang Xicheng District Tiankang Avenue South of Anhui Tiankang medical supplies Co. Ltd. Patentee before: Anhui Tiankang Medical Products Co., Ltd. |