CN101513547B - Small-dose safety destructing insulin syringe - Google Patents
Small-dose safety destructing insulin syringe Download PDFInfo
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- CN101513547B CN101513547B CN2009100968435A CN200910096843A CN101513547B CN 101513547 B CN101513547 B CN 101513547B CN 2009100968435 A CN2009100968435 A CN 2009100968435A CN 200910096843 A CN200910096843 A CN 200910096843A CN 101513547 B CN101513547 B CN 101513547B
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- syringe
- push rod
- elastic
- diameter
- ring
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- NOESYZHRGYRDHS-UHFFFAOYSA-N insulin Chemical compound N1C(=O)C(NC(=O)C(CCC(N)=O)NC(=O)C(CCC(O)=O)NC(=O)C(C(C)C)NC(=O)C(NC(=O)CN)C(C)CC)CSSCC(C(NC(CO)C(=O)NC(CC(C)C)C(=O)NC(CC=2C=CC(O)=CC=2)C(=O)NC(CCC(N)=O)C(=O)NC(CC(C)C)C(=O)NC(CCC(O)=O)C(=O)NC(CC(N)=O)C(=O)NC(CC=2C=CC(O)=CC=2)C(=O)NC(CSSCC(NC(=O)C(C(C)C)NC(=O)C(CC(C)C)NC(=O)C(CC=2C=CC(O)=CC=2)NC(=O)C(CC(C)C)NC(=O)C(C)NC(=O)C(CCC(O)=O)NC(=O)C(C(C)C)NC(=O)C(CC(C)C)NC(=O)C(CC=2NC=NC=2)NC(=O)C(CO)NC(=O)CNC2=O)C(=O)NCC(=O)NC(CCC(O)=O)C(=O)NC(CCCNC(N)=N)C(=O)NCC(=O)NC(CC=3C=CC=CC=3)C(=O)NC(CC=3C=CC=CC=3)C(=O)NC(CC=3C=CC(O)=CC=3)C(=O)NC(C(C)O)C(=O)N3C(CCC3)C(=O)NC(CCCCN)C(=O)NC(C)C(O)=O)C(=O)NC(CC(N)=O)C(O)=O)=O)NC(=O)C(C(C)CC)NC(=O)C(CO)NC(=O)C(C(C)O)NC(=O)C1CSSCC2NC(=O)C(CC(C)C)NC(=O)C(NC(=O)C(CCC(N)=O)NC(=O)C(CC(N)=O)NC(=O)C(NC(=O)C(N)CC=1C=CC=CC=1)C(C)C)CC1=CN=CN1 NOESYZHRGYRDHS-UHFFFAOYSA-N 0.000 title claims abstract description 36
- 102000004877 Insulin Human genes 0.000 title claims abstract description 18
- 108090001061 Insulin Proteins 0.000 title claims abstract description 18
- 229940125396 insulin Drugs 0.000 title claims abstract description 18
- 238000002347 injection Methods 0.000 claims abstract description 26
- 239000007924 injection Substances 0.000 claims abstract description 26
- 210000000078 claw Anatomy 0.000 claims description 10
- 230000003190 augmentative effect Effects 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 239000000243 solution Substances 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 206010011409 Cross infection Diseases 0.000 description 4
- 206010029803 Nosocomial infection Diseases 0.000 description 4
- 239000008280 blood Substances 0.000 description 4
- 210000004369 blood Anatomy 0.000 description 4
- 244000208734 Pisonia aculeata Species 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention provides a small-dose safety destructing insulin syringe, comprising a hollow syringe, a push rod capable of sliding in the syringe and a rubber plug mounted at the front end of the push rod, wherein a needle stand detached from the syringe is mounted at the front end of the syringe, a frustum is formed at the front end of the push rod, at least two elastic hooks are mounted at the lower end of the needle stand, a locking ring in interference fit with the inner wall of the syringe is arranged under the elastic hooks, a first elastic pawl clamped with the frustum is arranged in the hole in the locking ring, a card core capable of extending into the hole in the elastic hooks is formed on the locking ring, the chamber of needle stand is blocked by the card core, a grab is arranged on the card core, the frustum at the front end of the push rod can be clamped with the first elastic pawl in the locking ring, the locking ring is driven by drawing the push rod down to slide down so that the grab is clamped with the elastic hooks, the needle stand is driven by the locking ring to be detached from the inner wall of the syringe. The invention has the beneficial effect: the needle stand can be detached from the inner wall of the syringe by applying less pulling force, the bubble can not be generated at the top of the rubber plug, the residue amount of injection solution in the syringe after injection is less.
Description
Technical field
The invention belongs to a kind of medical apparatus, belong to a kind of small-dose safety destructing insulin syringe particularly.
Background technology
Syringe is that an indispensable apparatus is gone up in medical treatment, and for avoiding the blood cross infection, present syringe all adopts disposable product; But this disposable syringe; If inartificial damages, can reuse, cause cross infection in order not make existing disposable syringe be repeated to utilize; Spread disease, have many syringes just to arise at the historic moment.Such as the pull-back safety injector, when push rod retracted, entry needle was followed up in the syringe, but when receiving outer force urges, syringe needle can come out, and also can cause cross infection.Also have a kind of pull-back safety injector 200410017938.0, when retracting push rod, entry needle and then enters in the syringe, and syringe needle can be tiltedly on one side; Be difficult for pulling out, but needle point is sharp, plastic needle cylinder is generally made with common PP, and material is very soft; Under the effect of external force, needle tubing is prone to punctured, and needle point can be exposed; Also can cause cross infection, for safety, it is on probation just to adopt following three kinds of methods to combine: increase the syringe wall thickness 1..2. in the PP raw material, add and increase the steel agent.3. select inflexible needle tubing, so just increased cost, reduced the sharpness of needle tubing, brought misery to patient.On push rod, be provided with damaged part in addition, firmly push rod fractureed after injection finishes, destroy push rod; Reach self-destruction,, change and still can continue behind the push rod to use though this type syringe push rod has been destroyed; Can not reach the purpose of overall safety, this type syringe is drawing liquid (blood) secondary piston front end (being that piston is not pulled to the end) not on zero line in addition, so during drawing liquid (especially in blood drawing) uses; Cause drawing liquid (blood) dosage nonstandard on the one hand, make that on the other hand the air in the syringe was residual not more when syringe used, it is more that the push rod head of this type syringe exceeds plug; Can produce air at the plug top; When drawing liquid, need to discharge earlier the air in the syringe, especially as the syringe of this type of insulin syringe low dose, its air is discharged the meeting difficulty; There is injection residual after injector to inject finishes, can not reaches the standard of low-residual.As the syringe of this type of insulin syringe low dose, general needle holder and syringe all are close-fittings, the O RunddichtringO are not installed, the leakage of injection in the time of can causing injecting between the two in addition.
Summary of the invention
The technical problem that the present invention will solve is: a kind of small-dose safety destructing insulin syringe is provided.Apply less pulling force by push rod after this injector to inject finishes needle stand and syringe inwall are broken away from, reach the purpose in needle retractable to the syringe.
In order to solve the problems of the technologies described above, the present invention adopts following technical scheme:
A kind of small-dose safety destructing insulin syringe comprises the push rod that a hollow barrel, slides, the plug that is installed in the push rod front end in syringe, the syringe front end is equipped with the needle stand that can break away from syringe; The push rod front end forms frustum; It is characterized in that: said needle stand lower end is provided with at least two elastic hooks, elastic hook below be provided with one with the lock ring of syringe inwall interference fit, the lock ring endoporus is provided with first elastic pawl that can fasten with frustum; Also form the core of the card that stretches into the elastic hook endoporus on the lock ring; The core of the card can stop up said needle stand inner chamber, and the core of the card is provided with the grab that can match with elastic hook, after injection finishes; Intra-annular first elastic pawl of the frustum of push rod front end and locking fastens; Following pulling-pushing rod drives the lock ring downslide and makes grab and elastic hook hook, and lock ring drive needle stand moves downward and makes it and the disengaging of syringe inwall, reaches the purpose in needle retractable to the syringe.
The outside of said elastic hook is provided with a circle flange; Correspondingly the syringe inwall is provided with embeddable first groove of flange; Said the core of the card is provided with the shoulder that offsets with elastic hook, and shoulder compresses elastic hook and flange embedded needle stand is fixed in first groove, when lock ring glides; Elastic hook separates with shoulder makes the flange and first groove throw off in the dead slot that falls into the shoulder top, reach the purpose that needle stand and syringe break away from.
Said push rod is provided with round platform; Round platform is provided with second elastic pawl that extends to syringe inwall oblique angle; The end of syringe is provided with diameter-increasing portion; Transition position in non-diameter-increasing portion of syringe and diameter-increasing portion is provided with the sloping platform rank, and second groove that second elastic pawl can snap in when below, sloping platform rank was provided with down pulling-pushing rod is provided with the back-up ring that can prop up the round platform bottom in the diameter-increasing portion.
Said back-up ring and syringe end diameter augmenting portion inwall are moving joins, can be along axially the moving up and down and do not deviate from syringe of push rod, and the back-up ring upper end is provided with the elasticity support claw of the propped up round platform bottom of gathering to the center.
The inwall of said syringe end diameter augmenting portion is provided with and the moving circle big groove of joining of back-up ring; On it top can with back-up ring upper end butt; Be provided with the flange step in the big groove lower end, the outer ring of back-up ring upper end is provided with flange, the bottom face butt of flange step and peripheral flange.
The external diameter of the round platform of said push rod is smaller or equal to the minimum diameter at syringe sloping platform rank places, greater than back-up ring be positioned at elasticity support claw pawl point place minimum diameter.
At least two of quantity of said elastic pawl and being symmetrical set, the distance between the symmetric two pawl points are less than the internal diameter of the non-diameter-increasing portion of syringe, greater than the minimum diameter at place, sloping platform rank in the syringe.
Said second groove is a circle draw-in groove, and its upper surface is from inside to outside and along oblique angle or plane that the second elastic pawl cephalad direction is extended, and its side-walls diameter is greater than the distance between the symmetrical two ratchet points.
When not injecting at the bottom of the awl of said frustum with plug top butt; Said plug is a hollow type; Push rod is provided with the block of pushing and pressing plug; Plug receives the counteracting force that injection produces and the thrust compressive deformation of block during injection, this moment the push rod front end frustum along axially the protracting of push rod, the injection back frustum that finishes can engage with first elastic pawl.
Adopt the syringe of said structure; Lock ring is that the inclined-plane hook cooperates with needle stand, lock ring and needle stand hook after injection finishes, and can not throw off; Lock ring drives needle stand and moves downward; Because needle stand lower end elastic hook has inside movement tendency under the effect of elastic force, so apply less pulling force needle stand and syringe inwall are broken away from, reach the purpose in needle retractable to the syringe.The end of syringe is provided with diameter-increasing portion; Self-locking mechanism can be arranged on back end of syringe, and push rod is provided with elastic pawl and extends to the syringe inwall, and elastic pawl snaps in groove during following pulling-pushing rod; Sloping platform rank, elastic pawl top stop push rod to move upward; The bottom that the back-up ring of elastic pawl below props up the push rod round platform stops push rod to move downward, because the effect elastic pawl of groove can not move in radial direction, reaches the purpose of locked push rod.When not injecting at the bottom of the awl of push rod frustum with plug top butt; Frustum to exceed the position shorter, drawing liquid can not produce bubble at the plug top, without hindrance unimpeded in the drawing liquid final vacuum; The residual quantity of injection is less in the syringe of injection back, especially is fit to the syringe of this type of picture insulin syringe low dose.
Description of drawings
Fig. 1 is the cutaway view of push rod installment state;
Fig. 2 installs the cutaway view of state for push rod;
Fig. 3 is the cutaway view of drawing liquid state;
Fig. 4 is for injecting the cutaway view of the state that finishes;
Fig. 5 hooks together the cutaway view of state for lock ring and needle stand;
Fig. 6 is the cutaway view of needle stand and syringe disengaged position;
Fig. 7 is the finish cutaway view of state of self-destruction;
Fig. 8 is the partial enlarged drawing of Fig. 1;
Fig. 9 is the structural representation of needle stand;
Figure 10 is the C-C cutaway view of Fig. 9;
Figure 11 is the vertical view of lock ring;
Figure 12 is the A-A cutaway view of Figure 11;
Figure 13 is the B-B cutaway view of Figure 11;
Figure 14 is the cutaway view of syringe;
Figure 15 is the partial enlarged drawing of Fig. 5;
Figure 16 is the partial enlarged drawing of Fig. 1;
Figure 17 is the partial enlarged drawing of Fig. 7.
The specific embodiment
Referring to Fig. 1, Fig. 8, Figure 16; A kind of small-dose safety destructing insulin syringe; Comprise the push rod 2 that a hollow barrel 1, slides in syringe 1, the plug 3 that is installed in push rod 2 front ends, the front end of syringe 1 is equipped with the needle stand 4 that can break away from syringe, is to guarantee to seal between needle stand 4 and the syringe 1; Injection does not leak during injection, between needle stand 4 and the syringe 1 O RunddichtringO 41 is installed.
Referring to Fig. 9, Figure 10; The outside of elastic hook 6 is provided with a circle flange 11; Correspondingly the syringe inwall is provided with flange 11 embeddable grooves 12 (referring to Figure 14), and the core of the card 9 is provided with the shoulder 13 (referring to Fig. 8) that offsets with elastic hook 6 inboards, and shoulder 13 compresses elastic hook 6 and flange 11 embedded in the grooves 12 needle stand is fixed; When lock ring 7 glides; Elastic hook 6 separates in the dead slot 51 that falls into the shoulder top (referring to Figure 12) with shoulder, and flange 11 and groove 12 are thrown off, and reaches the purpose that needle stand and syringe break away from.
Referring to Figure 15, Figure 16; When not injecting at the bottom of the awl of said frustum 5 with plug 3 top butts; Plug 3 is a hollow type, and push rod 2 is provided with the block 14 of pushing and pressing plug 3, and plug 3 receives the counteracting force of injection generation and the thrust compressive deformation of block 14 during injection; This moment the push rod front end frustum 5 along axially the protracting of push rod, the injection back frustum 5 that finishes can engage with first elastic pawl 8.The below that is positioned at plug 3 on the push rod 2 is provided with round platform 19, and the ratchet point that round platform 19 is provided with second elastic pawl, 20, the second elastic pawls 20 that extend to syringe inwall oblique angle rises on the extreme direction oblique angle before syringe.Referring to Figure 14; The end of syringe is provided with diameter-increasing portion 21; Transition position in non-diameter-increasing portion 22 of syringe and diameter-increasing portion 21 is provided with sloping platform rank 23; The groove 24 (referring to Figure 17) that elastic pawl 20 can snap in when 23 belows, sloping platform rank were provided with down pulling-pushing rod is provided with the back-up ring 25 that can prop up round platform 19 bottoms in the diameter-increasing portion 21, back-up ring 25 upper ends are provided with the elasticity support claw 26 of propped up round platform 19 bottoms of gathering to the center.The external diameter of round platform 19 is positioned at the minimum diameter at elasticity support claw 26 pawls point place smaller or equal to the minimum diameter on syringe sloping platform rank 23 greater than back-up ring 25.At least two of quantity of elastic pawl 20 and being symmetrical set are preferably four and be to be symmetrical set, and the distance between the symmetric two pawl points is less than the internal diameter of the non-diameter-increasing portion 22 of syringe, greater than the minimum diameter on sloping platform rank 23 in the syringe.
Referring to Figure 17, groove 24 is circle draw-in grooves along the circumferential direction, and its upper surface 91 is from inside to outside and along oblique angle or plane that elastic pawl 20 cephalad direction are extended, and its sidewall 92 place's diameters are greater than the distance between the symmetrical elastic pawl 20 pawl points.Back-up ring 25 is joined with syringe end diameter augmenting portion 21 inwalls are moving; Can move up and down vertically; And do not deviate from syringe, its distance that moves adds the distance of top cylinder sloping platform rank 23 length greater than tip to round platform 19 bottoms of the elastic pawl on the push rod 2 20, and back-up ring 25 upper ends can prop up round platform 19 bottoms.Round platform 19 can be entered the big extruding of elasticity support claw 26 supports of back-up ring 25.The inwall of syringe end diameter augmenting portion 21 is provided with and back-up ring 25 moving circle big grooves 61 (referring to Figure 14) of joining; On it top 62 can with back-up ring 25 upper ends 121 butts; Be provided with flange step 28 in big groove 61 lower ends; The outer ring of back-up ring 25 upper ends is provided with flange 29 (referring to Figure 16), and bottom face 122 butts of flange step 28 and flange 29, step 28 stop the slippage in the syringe of these back-up rings 25.
Referring to Figure 17, after injection finished, pulling push rod 2 moved to the syringe bottom direction; The top of the elasticity support claw 26 of the back-up ring 25 that is installed in syringe 1 inside will be run in the baseplane of the round platform 19 on the push rod 2, and the internal diameter of therefore locating moves downward thereby drive back-up ring 25 less than the external diameter of round platform 19; Pull on push rod 2 downwards, elastic pawl 20 contacts with sloping platform rank 23 upper inclined surface 81 (referring to Figure 14), and under these inclined-plane 81 effects; Central part direction to push rod produces strain; And with the moving down and cross the minimum place of internal diameter on sloping platform rank 23 of push rod, elastic pawl 20 leans on self elastic return to former naturalness after crossing the minimum place of sloping platform rank 23 internal diameters; The pawl point of elastic pawl 20 will snap in the groove 24 of 23 belows, sloping platform rank; When push rod 2 continued down to move, the bottom face 122 of back-up ring 25 upper end flange 29 and syringe end diameter increased inwall flange step 28 butts of part 21, stoped push rod to move downward; If certain external force is arranged when injection direction promotes push rod; Because elastic pawl 20 plays interception under the effect of groove 24, the sidewall 92 of groove 24 can prevent the direction upset of elastic pawl to needle cylinder wall, reaches the purpose of locked push rod.
The present invention in use, and is at first as shown in Figure 1, and this is installed in the state in the syringe for push rod 2, and back-up ring 25 is along moving on the syringe inwall, and elastic pawl 20 inwardly draws under the extruding of the elasticity support claw 26 of back-up ring; As shown in Figure 2, elastic pawl 20 gets into the non-diameter-increasing portion 22 of syringe through sloping platform rank 23 smoothly under the effect of back-up ring 25, and round platform 19 also gets into the non-diameter-increasing portion 22 of syringe to the big extruding of support claw 26 supports of back-up ring 25, and as shown in Figure 3, this is the drawing liquid state; As shown in Figure 4, this moment, injection finished; Because of the inertia of thrust continues to push against forward push rod 2 at this moment, plug 3 receives the counteracting force that injection produces and the thrust compressive deformation of block 14, this moment the push rod front end frustum 5 axially protracting along push rod; As shown in Figure 5, the push rod of pulling back downwards, frustum 5 engages with first elastic pawl 8 on the lock ring 7; Pulling-pushing rod drive lock ring 7 glides and makes grab 10 and hook 6 hooks under continuing, and lock ring 7 drive needle stands 4 move downward and make it and the disengaging of syringe inwall, and are as shown in Figure 6; Continue downward pulling-pushing rod; Drive needle holder 4 retractions, second elastic pawl 20 is 23 downslides along the sloping platform rank, and this moment, elastic pawl 20 snapped in the groove 24 of 23 belows, sloping platform rank; Push rod 2 is by locked, and self-destruction is accomplished.
Claims (8)
1. small-dose safety destructing insulin syringe; Comprise the push rod (2) that a hollow barrel (1), slides, the plug (3) that is installed in push rod (2) front end in syringe (1); The syringe front end is equipped with the needle stand (4) that can break away from syringe, and the push rod front end forms frustum (5), it is characterized in that: said needle stand (4) lower end is provided with at least two elastic hooks (6); Elastic hook (6) below be provided with one with the lock ring (7) of syringe inwall interference fit; Lock ring (7) endoporus is provided with first elastic pawl (8) that can fasten with frustum (5), also forms the core of the card (9) that stretches into elastic hook (6) endoporus on the lock ring (7), and the core of the card (9) can stop up said needle stand inner chamber; The core of the card (9) is provided with the grab (10) that can match with elastic hook (6); After injection finished, the frustum of push rod front end (5) fastened with interior first elastic pawl (8) of lock ring (7), and following pulling-pushing rod drives lock ring (7) downslide and makes grab (10) and elastic hook (6) hook; Lock ring (7) drive needle stand moves downward and makes it and the disengaging of syringe inwall, reaches the purpose in needle retractable to the syringe; The outside of said elastic hook (6) is provided with a circle flange (11); Correspondingly the syringe inwall is provided with embeddable first groove of flange (11) (12); Said the core of the card (9) is provided with the shoulder (13) that offsets with elastic hook (6); Shoulder (13) compresses elastic hook (6) and flange (11) is embedded in first groove (12) needle stand is fixed; When lock ring (7) glided, elastic hook (6) separates with shoulder (13) made flange (11) and first groove (12) throw off in the dead slot (51) that falls into the shoulder top, reach the purpose that needle stand and syringe break away from.
2. a kind of according to claim 1 small-dose safety destructing insulin syringe; It is characterized in that: said push rod (2) is provided with round platform (19); Round platform (19) is provided with second elastic pawl (20) that extends to syringe inwall oblique angle; The end of syringe is provided with diameter-increasing portion (21); Transition position in non-diameter-increasing portion of syringe (22) and diameter-increasing portion (21) is provided with sloping platform rank (23), and second groove (24) that second elastic pawl (20) can snap in when sloping platform rank (23) below was provided with down pulling-pushing rod is provided with the back-up ring (25) that can prop up round platform (19) bottom in the diameter-increasing portion (21).
3. like the said a kind of small-dose safety destructing insulin syringe of claim 2; It is characterized in that: said back-up ring (25) is joined with syringe end diameter augmenting portion (21) inwall is moving; Can be along axially the moving up and down and do not deviate from syringe of push rod, back-up ring (25) upper end is provided with the elasticity support claw (26) of propped up round platform (19) bottom of gathering to the center.
4. a kind of small-dose safety destructing insulin syringe as claimed in claim 3; It is characterized in that: the inwall of said syringe end diameter augmenting portion (21) is provided with and the moving circle big groove (61) of joining of back-up ring (25); Top on it (62) can with back-up ring (25) upper end (121) butt; Be provided with flange step (28) in big groove (61) lower end, the outer ring of back-up ring (25) upper end is provided with peripheral flange (29), bottom face (122) butt of flange step (28) and peripheral flange (29).
5. like the said a kind of small-dose safety destructing insulin syringe of claim 3; It is characterized in that: the minimum diameter that the external diameter of the round platform (19) of said push rod (2) is located smaller or equal to syringe sloping platform rank (23) is positioned at the minimum diameter that elasticity support claw pawl point is located greater than back-up ring (25).
6. a kind of small-dose safety destructing insulin syringe as claimed in claim 2; It is characterized in that: at least two of the quantity of said second elastic pawl (20) and being symmetrical set; Distance between the symmetric two pawl points is less than the internal diameter of the non-diameter-increasing portion of syringe (22), the minimum diameter of locating greater than sloping platform rank (23) in the syringe.
7. like the said a kind of small-dose safety destructing insulin syringe of claim 2; It is characterized in that: said second groove (24) is a circle draw-in groove; Its upper surface (91) is from inside to outside and along oblique angle or plane that the second elastic pawl cephalad direction is extended, and its sidewall (92) is located diameter greater than the distance between the symmetrical two ratchet points.
8. a kind of according to claim 1 or claim 2 small-dose safety destructing insulin syringe; It is characterized in that: when not injecting at the bottom of the awl of said frustum (5) with plug (3) top butt; Said plug (3) is a hollow type; Push rod (2) is provided with the block (14) of pushing and pressing plugs (3); Plug during injection (3) receives the counteracting force that injection produces and the thrust compressive deformation of block (14), this moment push rod (2) front end frustum (5) along axially the protracting of push rod, the injection back frustum (5) that finishes can engage with first elastic pawl (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100968435A CN101513547B (en) | 2009-03-17 | 2009-03-17 | Small-dose safety destructing insulin syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100968435A CN101513547B (en) | 2009-03-17 | 2009-03-17 | Small-dose safety destructing insulin syringe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101513547A CN101513547A (en) | 2009-08-26 |
| CN101513547B true CN101513547B (en) | 2012-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100968435A Expired - Fee Related CN101513547B (en) | 2009-03-17 | 2009-03-17 | Small-dose safety destructing insulin syringe |
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| Country | Link |
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| CN (1) | CN101513547B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101444649B (en) * | 2008-12-30 | 2011-01-12 | 林作钱 | Low-residual safe self-destructing injector |
| CN102872505B (en) * | 2011-07-14 | 2015-04-01 | 沈挺 | Spring-type security injector |
| 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 |
| KR102307817B1 (en) * | 2021-05-10 | 2021-10-01 | 주식회사 에스티에스바이오 | Syringe Tip for LDS |
| CN118557840B (en) * | 2024-07-08 | 2024-10-29 | 苏州嘉树医疗科技有限公司 | Dose adjusting mechanism of injection pen and injection pen |
-
2009
- 2009-03-17 CN CN2009100968435A patent/CN101513547B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101513547A (en) | 2009-08-26 |
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