CN101175522A - Auto retractable syringe - Google Patents
Auto retractable syringe Download PDFInfo
- Publication number
- CN101175522A CN101175522A CNA2006800164823A CN200680016482A CN101175522A CN 101175522 A CN101175522 A CN 101175522A CN A2006800164823 A CNA2006800164823 A CN A2006800164823A CN 200680016482 A CN200680016482 A CN 200680016482A CN 101175522 A CN101175522 A CN 101175522A
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- CN
- China
- Prior art keywords
- needle interface
- plunger
- pin
- gland
- safety injector
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
- A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
- A61M5/321—Means for protection against accidental injuries by used needles
- A61M5/322—Retractable needles, i.e. disconnected from and withdrawn into the syringe barrel by the piston
- A61M5/3234—Fully automatic needle retraction, i.e. in which triggering of the needle does not require a deliberate action by the user
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
- A61M5/31511—Piston or piston-rod constructions, e.g. connection of piston with piston-rod
- A61M2005/31516—Piston or piston-rod constructions, e.g. connection of piston with piston-rod reducing dead-space in the syringe barrel after delivery
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
- A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
- A61M5/321—Means for protection against accidental injuries by used needles
- A61M5/322—Retractable needles, i.e. disconnected from and withdrawn into the syringe barrel by the piston
- A61M5/3234—Fully automatic needle retraction, i.e. in which triggering of the needle does not require a deliberate action by the user
- A61M2005/3235—Fully automatic needle retraction, i.e. in which triggering of the needle does not require a deliberate action by the user triggered by radial deflection of the anchoring parts between needle mount and syringe barrel or needle housing, e.g. spreading of needle mount retaining hooks having slanted surfaces by engagement with correspondingly shaped surfaces on the piston at the end of an injection stroke
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
- A61M5/3202—Devices for protection of the needle before use, e.g. caps
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/50—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests having means for preventing re-use, or for indicating if defective, used, tampered with or unsterile
- A61M5/508—Means for preventing re-use by disrupting the piston seal, e.g. by puncturing
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Environmental & Geological Engineering (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
An auto-retractable safety syringe comprising a syringe barrel (12) having a hollow plunger (13) slideably located therein. The needle assembly comprises a needle and a needle hub (17), with a groove in the end of the barrel (12) to hold the needle hub (17) and a spring disposed over said needle hub (17) and acting between the needle hub (17) and the end of the barrel (12). The needle hub (17) has a groove around its circumference in which a locking means mates so as to retain the needle hub (17) in the end of the syringe barrel (12) during use. The plunger (13) upon completion of an injection and when further depressed activates auto retraction of the needle hub (17) by dislodging said locking means from said groove to release the needle hub (17) hence allowing the needle and spring to retract inside the hollow plunger (13) under the influence of the spring.
Description
Technical field
The safety injector that the present invention relates to a kind of pin with auto retractable is to be used for medical treatment or dental industry or to be used for individual administration, so that protect internist, surgeon or other pins operator in case be subjected to the injury of pin after using pin.The present invention relates in particular to the gland assembly (glandassembly) of the automatic withdrawal of needle interface (needle hub) of being convenient to syringe after injection is finished in a preferred form.Yet, the invention is not restricted to this, but comprise any syringe that can use therein according to automatic retraction mechanism of the present invention.
Background technology
Modern age is no matter come from medical industry or come from the beach or the child's who plays in the park pricking wound (needle stick injury) sign is increasing always.No matter relating to the ordinary people still is professional health officer, and the result who suffers pricking wound is that the someone will infect serious blood borne disease.
Injured danger is to exist really with the probability that infects from HIV or hepatitis B virus to the medical practitioner owing to use pin in the common procedure of their work.
In addition, the people of custom self-administer has the substantial risk of contact specific virus, if perhaps reuse once exhausted pin with disinfectant form not, will contact other viruses so really.Under the situation that requires to change the pin in the syringe, also have more danger.
Have many purposes to be to reduce the instrument of carrying of so-called pricking wound quantity, and carried out various trials a kind of this class security system of exhausted pin once that is used to handle is provided, but this existing proposal all there is deficiency.Although ensuing description relates generally to the use of the relevant so-called exchange pin safety injector of the present invention (exchange needle safety syringe), the pin that wherein must hold various sizes, perhaps must exchange pin from the bottle filled syringe with between the patient injection, but the invention is not restricted to this, and also imagine the present invention and after any hope injection is finished, provide the use in the syringe of automatic withdrawal of pin.Like this, show any syringe that the present invention includes the pin that needs auto retractable, in this case, the present invention can be used by suitable change as required.
Goal of the invention
The purpose of this invention is to provide a kind of syringe with auto retractable acus.Further aim of the present invention provides a kind ofly to be used the pin of this auto retractable and in case had used acus just for good and all to store the syringe of that acus in a kind of mode of basic security in sterile mode before using.The present invention can be applicable to so-called exchange needle injection or is applied to other require the syringe that pin is withdrawn automatically after using.
The present invention mainly wishes by causing that after injection is finished pin automatically retracts in the cylindrical shell, thereby makes syringe safety operation eliminate pricking wound.
At least, the invention provides a kind of used syringe that holds, comprise the replaceable unit of the pin that exchanges needle injection, in case using the unexpected injury that takes place owing to unnecessary contact behind the syringe with the pin that exposes.
Although ensuing description also is the syringe that is usually directed to stock size, but the meaning without limits in that respect, and wish that mentioned syringe comprises any other pin/combinations of syringe, comprise elongated syringe (slimline syringe), in this case, the present invention also can be effectively applied by suitable repacking.
Summary of the invention
The present invention provides a kind of safety injector with a kind of wide in range form, it comprises the needle assembly of auto retractable wherein, described safety injector has injector cartridge, described injector cartridge has the hollow plunger that is slidably located on wherein, described hollow plunger has near-end and far-end, at its far-end, there is piston apparatus to be associated so that can slide sealedly at described cylindrical shell with it, described needle assembly comprises pin and needle interface, one recess is arranged to keep the described needle interface of described pin in the end of described cylindrical shell, and described needle interface is provided with a spring, and described spring action is between the described end of described needle interface and described cylindrical shell, during use, described spring remains on compressive state, described needle interface has the sealing device (sealing means) that is associated with it with the seepage between the described end that prevents described needle interface and described cylindrical shell, described needle interface has around its groove or recess on every side, one locking device (locking means) is engaged in described groove or the recess so that during use described needle interface is remained in the described end of described injector cartridge to resist the compression of described spring, and the described far-end of wherein said hollow plunger has sealing block, in the phase I, described plunger contacts described needle assembly after injection is finished, and when being further depressed, start the automatic withdrawal of described needle interface and remove when arriving second stage, to discharge described needle interface from described groove or recess by acting on described locking device so that cause described locking device, when arriving described second stage, described sealing block is removed from the described far-end of described plunger, thereby discharge described needle interface, and allow described pin and described spring under the influence of described spring, to be withdrawn in the described hollow plunger thus.
Preferably, described pin and described needle interface are installed in the pin gland, and it can be connected to the described cylindrical shell of described syringe replaceably.
Like this, in the especially preferred form of the present invention, the present invention provides a kind of safety injector with a kind of wide in range form, it is included in the needle assembly of auto retractable wherein, described safety injector has injector cartridge, described injector cartridge has the hollow plunger that is slidably located on wherein, described hollow plunger has near-end and far-end, at its far-end, there is piston apparatus to be associated so that can slide sealedly at described cylindrical shell with it, described needle assembly comprises gland liner (gland bush), pin and needle interface, one recess is arranged to keep the described needle interface of described pin in described gland liner, and on described needle interface, be provided with a spring, described spring action is between described needle interface and described gland liner, during use, described spring remains on compressive state, described needle interface has the sealing device that is associated with it to prevent the seepage between described needle interface and the described gland liner, described needle interface has around its groove on every side, one locking device is engaged in the described groove so that described needle interface is remained in the described gland liner during use to resist the compression of described spring, and the described far-end of wherein said hollow plunger has sealing block, in the phase I, described plunger contacts described needle assembly after injection is finished, and when being further depressed, start the automatic withdrawal of described needle interface and remove when arriving second stage, to discharge described needle interface from described groove by acting on described needle assembly so that cause the described locking device that is associated with described pin, when arriving second stage, described sealing block is removed from the described far-end of described plunger, thereby discharge described needle interface, and allow described pin and described spring under the influence of described spring, to be withdrawn in the described hollow plunger thus.
Should be appreciated that described pin gland allows described needle assembly to dismantle replaceably.Yet, it is identical that the present invention keeps, promptly when using, use is arranged in the described locking device of described cylindrical shell self or described gland, make the effect of described plunger cause described locking device to be released, thereby discharge the described needle interface that remains in described cylindrical shell or the described gland as the case may be, when being discharged like this with box lunch, described pin is introduced into described hollow plunger.
Ensuing description relates generally to the use of gland, yet not conditional intention, therefore, concerning any syringe that does not use gland, should be understood as that it is quoting to quoting of gland to cylindrical shell self, if used gland, gland should otherwise remain in the cylindrical shell so.In other words, use the gland in the cylindrical shell should be interpreted as two parts tube structure simply, and under the situation of not using gland, it should be thought of as simple overall structure with the convertibility that pin is provided.
Preferably, locking device is finger piece (finger) or complete ring (full ring) form inner periphery, that match with the groove that is positioned at around the needle interface that is positioned at gland liner.
Another is chosen as, and locking device can be independent of gland liner, and can comprise for example alignment pin (dowel pin), and is described as one in the embodiment next.
No matter finger piece in the gland liner self or ring form, or independently object such as alignment pin, shape such as the parts of groove in the needle interface and locking device can be any suitable shape that is used for required purpose, and comprise, but needn't be limited to, as the shape of circle, squares and triangles etc.
Like this, preferably, needle assembly has its device that is used for removably being connected to the cylindrical shell end, so that provide a kind of so-called exchange needle assembly for syringe.
In this special embodiment, preferably, it is to provide by having the described gland liner that is installed to the described end of described cylindrical shell by screw device that needle assembly relies on the device that is connected to cylindrical shell movably.Connecting device can be standard screw connection (screw fitting) or so-called road strategic point locked joints (luer-lock fitting).
Preferably, piston apparatus can slide on plunger and withdraw so that start automatically to allow plunger to move to second stage from the phase I.Preferably, this motion can realize at any time, only having two ridge to be positioned at piston seal (piston seal) by having around three ridge (ridge) of plunger periphery.After injection was finished, when extra pressure was applied between plunger and the cylindrical shell, piston seal was upwards promoted along plunger.This allows plunger to stretch out by piston seal, promotes pre-assembled pin gland assembly (needle gland assembly) to realize automatic withdrawal.
Another selection is, is can be simply compressible under the pressure of the increase that piston apparatus is applied when injection finishes.
Preferably, needle interface is provided with around its peripheral flange, and the inwall of the recess in the gland liner is provided with step (step), so that spring is positioned between flange and the step, so that during use, spring remains on compressive state.
Used alignment pin in one embodiment of the invention, plunger acts directly on the needle interface to cause automatic withdrawal, alignment pin has the end (tapered end) of taper, and the groove around described needle interface is the groove of taper, the end of the described taper of alignment pin is placed in the groove of taper, so that when arriving second stage, plunger causes described needle interface to be further promoted in the described recess, thereby the end of the taper of alignment pin is released the groove of taper, after injection is finished, described sealing block is removed from described far-end, thereby allows described needle interface and described spring to be withdrawn in the described hollow plunger.
In this embodiment, prevent that the sealing device of seepage between needle interface and the gland liner preferably is positioned at the simple O type circle or the similar sealing member of the flanged periphery of needle interface.
Preferably, remove the device that just holds it in the appropriate location,, do not hinder the withdrawal of needle interface under the influence of spring in case make that needle interface is released in case alignment pin is provided with its groove from taper.This device comprises interference engagement, for example, has slight tapering along the length of alignment pin so that after alignment pin is removed from needle interface, and alignment pin is wedged in the clip (housing).
In interchangeable embodiment, have a sleeve be positioned at needle interface and spring around, plunger acts on the sleeve to cause automatic withdrawal, alignment pin has that alignment pin can be by its device from removing around the groove of needle interface when plunger arrives second stage, plunger causes described sleeve to be further promoted in the described recess, thereby described groove is shifted out in the end of described alignment pin, after injection is finished, described sealing block (sealing stopper) is removed from described far-end, allows described needle interface and described spring to be withdrawn in the described hollow plunger.
Should be appreciated that in this embodiment alignment pin does not have the end of taper, so that needle interface is when being maintained in the gland liner, promptly before withdrawal automatically, alignment pin provides the more compulsory locking of needle interface, stops needle interface to move on either direction.
Preferably, in this embodiment, alignment pin is provided with the flange that is positioned at its lateral taper, and telescopic end acts on the flange of described taper so that cause alignment pin to be removed to realize automatic withdrawal.The advantage of this set (promptly using the sleeve be positioned at around the needle interface) is that alignment pin is by rigid mount, promptly under telescopic influence and maintained, this means, needle interface can freely be withdrawn and less than any possible interference from alignment pin.
Preferably, in this embodiment, the sealing device that prevents seepage between needle interface and the gland liner is provided by seal washer, the sealing packing ring extends and therefore strides across the sleeve of encirclement needle interface and spring between needle interface and gland liner, make that to be plunger act directly on result on the sleeve by seal washer in the effect that causes withdrawal automatically of plunger.
In replaceable embodiment described above, that use alignment pin, the present invention has used finger piece or ring or other flange component of the internal edge that is positioned at gland liner.
In this case, needle assembly is preferably by forming with the lower part:
1. gland liner
2. slip dividing busing (sliding spreaderbush)
3. gland packing element
4. needle interface
5. compression spring
In this embodiment, more than replace by the slip dividing busing that is positioned at once more around needle interface and the spring about the described sleeve of embodiment of using alignment pin, in this case, plunger acts on the slip dividing busing once more to cause automatic withdrawal, the finger piece or the ring that are arranged in gland liner can be open, and therefore can be from around the groove of needle interface, removing when plunger arrives second stage, plunger causes described slip dividing busing further to be shifted onto in the described recess, thereby described finger piece or ring are shifted out described groove, after injection is finished, described sealing block is removed from described far-end once more, allows described needle interface and described spring to be withdrawn in the described hollow plunger.
Should be appreciated that under the situation of ring, discontinuity zone to be set, such as one or more slit (slit) or similarly regional to allow ring to launch.
Preferably, as the case may be, the slip dividing busing has around the zone of the taper of its end so that each finger piece or ring expansion allow level and smooth interaction.On the contrary, gland liner by slip dividing busing engagement to realize finger piece or the unfolded part of ring correspondingly is tapered so that level and smooth interaction.
Once more, the advantage of this set (promptly using the sleeve that is positioned at interface slip dividing busing form on every side) is, finger piece or ring are to pass through rigid mount, promptly under the influence of dividing busing and maintained, this means that needle interface can freely be withdrawn and not from any possible interference of finger piece or ring.
Preferably, in this embodiment, the sealing device that prevents seepage between needle interface and the gland liner is provided by seal washer once more, the sealing packing ring extends between needle interface and gland liner, therefore and stride across the dividing busing that surrounds needle interface and spring, make that to be plunger directly act on result on the dividing busing sleeve by seal washer in the effect that causes withdrawal automatically of plunger.
Like this, when plunger is pressed downward after the injection, plunger contact sealing member.Be meshed with finger piece that is formed on gland liner inside or ring to the depresses plunger dividing busing that causes sliding.By continuing to promote plunger, finger piece or ring are forced out, and have discharged needle interface.Simultaneously, the sealing link stopper that is positioned at the end of hollow plunger is moved into plunger, and the compression spring forces needle interface to be withdrawn in the hollow plunger.Preferably, two finger pieces in gland liner, have been used.
Although positioning equipment (dowel arrangement) is useful, have been found that especially use as two finger pieces described in the latter embodiment makes assembling easier side by side except the alignment pin and the little spring of more difficult assembling.In addition, design can be more fairshaped because do not need here for the alignment pin setting for example and the gap between the side of applied any medicated cap.
In front in any one in the embodiment, preferably, for assembly is provided with pin medicated cap (needlecap) to protect pin before using.
Before using, pin medicated cap protection pin is in order to avoid it is damaged, and the safety helmet that also can be used as the healthcare givers who uses syringe is to prevent pricking wound.The existence of pin medicated cap also means can change needle assembly and the danger of contingent pricking wound when not having pin not protected easily under the situation of embodiment of exchange pin.
Under the situation of exchange pin, the pin gland is preferably remained in the pin medicated cap by interference engagement.The coupling spline that keyway (spline) on the coupling pin medicated cap inside preferably, is arranged in the outside of pin gland.
Therefore, pin is assembled in the screw thread in the gland liner in advance and is furnished with safety helmet preventing pricking wound, so all need be made is exactly to remove sterilization wrap and a pre-assembling pin clip is screwed into syringe and removes safety helmet.Then, syringe just is ready to be used.
In this case, after assembling, promptly at the pin gland with after inner pin is assembled and protection pin medicated cap loaded onto, described assembly is screwed into the end of cylindrical shell.Seal point fixes by the coupling tapering between pin gland and the screw thread inner barrel.
At pin gland assembly, needle interface promptly wherein is installed is screwed into cylindrical shell and reaches after the sealing, the pin medicated cap is removed from assembly so that pin is ready to be used.The attendant advantages of this syringe is that the pin that various sizes can be installed selects to use which kind of pin to allow the health care personnel.
In in previous embodiments any one, the cylindrical shell of syringe is transparent plastic preferably, and by indexing to show fluid level.
Piston is preferably made by synthetic rubber and is mounted to plunger so that seal by the interference engagement between plunger and the cylindrical shell, thereby allows in common mode fluid to be discharged from from syringe through pin.
Description of drawings
The present invention can be understood from the non restrictive description of ensuing preferred embodiment preferably, wherein:
Fig. 1 is the viewgraph of cross-section according to the pin gland assembly of first embodiment of the invention syringe;
Fig. 2 is the viewgraph of cross-section for the plunger that uses according to the first embodiment of the invention syringe;
Fig. 3 is the injector cartridge plunger (syringe barrel plunger) that uses for according to the first embodiment of the invention syringe;
Fig. 4 is the viewgraph of cross-section according to the assembled syringe of second embodiment of the invention, has wherein used sleeve before using;
Fig. 5 is the viewgraph of cross-section of syringe among Fig. 4, has shown after the fluid that reception is used for injecting and the plunger extracted out;
Fig. 6 is the viewgraph of cross-section of syringe among Fig. 4 and Fig. 5, shown injection after plunger be depressed into second stage and withdraw automatically to cause syringe needle;
Fig. 7 is the viewgraph of cross-section of syringe among Fig. 4 to Fig. 6, has shown the pin and the spring of the withdrawal in the hollow plunger;
Fig. 8 is the viewgraph of cross-section of injector cartridge (its integral body is presented among Figure 17 to Figure 20), has used inside finger piece that is arranged in gland liner and slip distance sleeve syringe according to the further embodiment of the present invention;
Fig. 9 is the viewgraph of cross-section for the plunger of Figure 17 to Figure 20 syringe use;
Figure 10 is for the plan view of Figure 17 to Figure 20 for the near-end of the plunger of syringe use;
Figure 11 is the cross-sectional side view of the end of Figure 10 plunger;
Figure 12 is the viewgraph of cross-section of the medicated cap of Figure 17 to Figure 20 syringe;
Figure 13 is that described gland can be screwed into the end of injector cartridge for the viewgraph of cross-section of the pin gland of Figure 18 to Figure 21 syringe use;
Figure 14 is the viewgraph of cross-section for the needle interface of Figure 18 to Figure 21 syringe use, and this needle interface is positioned at the pin gland of Figure 13;
Figure 15 is the viewgraph of cross-section of the sliding sleeve that uses for Figure 18 to Figure 21 syringe, this sliding sleeve be positioned at Figure 14 needle interface around and be positioned at the inside of Figure 13 gland;
Figure 16 is mounted in the viewgraph of cross-section of piston supports on the far-end of Figure 10 plunger, that use for Figure 18 to Figure 21 syringe;
Figure 17 is the syringe detailed cross section in the zone of the parts of employed Figure 12 to Figure 16 before automatically withdrawal is worked just therein described in Figure 18 to Figure 21;
Figure 18 is the viewgraph of cross-section according to the complete syringe of the further embodiment of the present invention, Figure 12 to Figure 17 detail display the various parts of this embodiment and their interaction, the plunger of syringe is drawn out of and is filled with fluid to prepare injection;
Figure 19 is the viewgraph of cross-section of the syringe among Figure 18, has shown the bulged-in plunger that was just utilized before automatic withdrawal is worked;
Figure 20 is the viewgraph of cross-section of the syringe among Figure 18, has shown that plunger is pressed into fully to start automatic withdrawal; And
Figure 21 is the viewgraph of cross-section of the syringe among Figure 18, has shown that automatic withdrawal takes place, and needle interface is arranged in hollow plunger now.
Accompanying drawing describes in detail
Usually referring to figs. 1 to Fig. 3, shown to be labeled as 11 the syringe and the combination of pin usually that it comprises injector cartridge 12, plunger 13 and is labeled as 14 needle assembly usually.Needle assembly 14 comprises the gland liner 15 that holds pin 16, and pin 16 end thereon has needle interface 17.Pin 16 passes gland liner 15 and stretches out.Needle interface 17 is preferably by medical plastic manufacturing and support pin 16.
The inside of gland liner 15 has recess 25 to keep needle interface 17, is provided with stainless steel spring 26 around needle interface 17.Flange 27 is arranged near the periphery of needle interface 17, and step 28 is arranged in the inwall of the recess 25 in the gland liner 15.Between the step 28 in the recess 25 of the flange 27 of needle interface 17 and gland liner 15, spring 26 is maintained at compressive state.
Also has clip 29 in the side of gland liner 15 to be used for holding alignment pin 30.Corresponding gap area 45 is arranged in the medicated cap 23 to be used for holding clip 29.
Around needle interface 17 main bodys are grooves (tapered groove) 31 of taper.The end of the alignment pin of taper (tapered dowel pin) 30 is placed in the groove 31 of this taper.The groove 31 that little stainless steel spring 32 promotes in alignment pin 30 and the needle interface 17 enters locking mesh (lockingengagement).
When beginning to work, finishes when injection plunger 13, needle interface 17 is further promoted in the recess 25 of pin gland liner 15, cause alignment pin 30 pushed outwards moving, dependence acts on the spring 26 on the needle interface 17 of release, cause that pin 16 withdraws automatically, therefore, allow spring 26 to promote pin 16 like this and enter retracted position.Length along alignment pin 30 is provided with slight tapering to be remained on tightly the clip 29 when groove 31 is extracted out when it.
The centre that hole 34 is configured to pass needle interface 17 is passed through with the fluid that allows to pass pin 16 injections and enter the patient.
Socket (spigot) 35 is arranged in the bottom of needle interface 17 with the bottom of alignment pins interface 17 and the cloudy socket (female spigot) 36 of inner seal that is positioned at plunger 13 ends or sealing link stopper 37.Before final injection is finished, the inside of sealing link stopper 37 sealed plungers 13.
Slowly the hollow region of the slight taper that withdrawal also can be by using plunger 13 inside realizes.After the injection, when sealing link stopper 37 returned in plunger 13 inside, air can be overflowed with the amount that increases in sealing link stopper 37 fronts.This allows pin 16 and link stopper 37 to return at first lentamente, and overflowing with air then gathers way, and simultaneously, spring 26 makes pin 26 and sealing link stopper 37 in plunger 13 moved upward inside.
Therefore, cylindrical shell 12 keeps including the plunger 13 of piston seal 39 and sealing link stopper 37.Cylindrical shell 13 is made by transparent medical plastic and is divided scale so that fluidic amount to be injected is visible.The gland liner 15 that includes pin medicated cap 23 and pin 16 is prefabricated units, and gland liner 15 is screwed into cylindrical shell 12.Two outthrust (protrusion) the 44th at cylindrical shell top are with injecting with normal mode with permission of cause finger grip.
During use, in sterilization wrap, take out syringe 11.In sterilization wrap, take out pre-assembled gland assembly 14, and, gland assembly 14 is screwed into the thread head 19 of injector cartridge 12 by catching safety helmet 23.After removing medicated cap 23, pin 16 is inserted bottle.Come filled syringe 11 by pull-up plunger 13.Injection then.Finish when injection, promote plunger 13 downwards, move down and discharge alignment pin 30 and sealing link stopper 37 up to needle interface 17.On this aspect, pin 16 is withdrawn in the plunger 13, thereby and is withdrawn in the cylindrical shell 12.Syringe 11 is safe now and can not operates.Whole syringe 11 can be handled safely in the mode of being responsible for now.If desired, before injection, in bottle, after the filled syringe 11, can change pin.
Usually with reference to figure 4 to Fig. 7, showed to be labeled as 11 syringe usually, wherein, in the substantially the same place of parts, each in the parts all use with Fig. 1 to Fig. 3 in identical reference number mark.
Yet in this embodiment, different to the situation of embodiment shown in Figure 3 with Fig. 1, the end of plunger 13 is not to act directly on the needle interface 17, but has one to be positioned at spring 26 and needle interface 17 sleeve 48 on every side.Sealing member 49 extends through the gap between needle interface 17 and gland liner 15 inwalls.In this case, plunger 13 is realized automatic withdrawal by relying on sealing member 49 to act on the sleeve 48.Alignment pin 50 promotes to make it to cooperate with groove 51 by spring 52 and contacts.Pin 50 is provided with the flange 54 of taper in its side, when plunger 13 is finished when being depressed in injection, promptly aforesaid when moving to second stage from the phase I at it, the flange 54 of taper is pressed in the end of sleeve 48.
Like this, Fig. 4 to Fig. 7 has shown the combination of syringe and pin, is labeled as 11 usually, and it comprises injector cartridge 12, plunger 13 and is labeled as 14 needle assembly usually.Needle assembly 14 comprises the gland liner 15 that holds pin 16, and pin 16 end thereon has needle interface 17.Pin 16 passes gland liner 15 and stretches out.Needle interface 17 is preferably by medical plastic manufacturing and support pin 16.
The inside of gland liner 15 has recess 25 to keep needle interface 17, is provided with stainless steel spring 26 around needle interface 17.Flange 27 is arranged near the periphery of needle interface 17, and step 28 is arranged in the inwall of the recess 25 in the gland liner 15.Between the step 28 in the recess 25 of the flange 27 of needle interface 17 and gland liner 15, spring 26 is maintained at compressive state.
Also has clip 29 in the side of gland 15 to be used for holding alignment pin 50.Corresponding gap area 45 is arranged in the medicated cap 23 to be used for holding clip 29.
Near needle interface 17 main bodys are grooves 51.The end of alignment pin 50 is placed in the groove 51.The groove 51 that little stainless steel spring 52 promotes in alignment pin 50 and the needle interface 17 enters locking mesh.
Be that sealing member 53 is with the seepage between the groove 25 that prevents interface 17 and gland 15 inside between the wall of needle interface 17 and gland liner 15.
When beginning to work, finishes when injection plunger 13, plunger acts on sealing member 53 so that sleeve 48 is further promoted in the recess 25 of gland liner 15, rely on the effect of sleeve ends on the conical surfaces of the flange 54 on pin 50 sides, cause that alignment pin 50 is pushed outwards moving, dependence acts on the spring 26 on the interface 17 of release, cause that pin 16 withdraws automatically, therefore, this allows spring 26 to promote pins 16 and enters retracted position.
Before final injection is finished, the inside of sealing link stopper 37 sealed plungers 13.
Therefore, cylindrical shell 12 keeps including the plunger 13 of piston seal 39 and sealing link stopper 37.Cylindrical shell 13 is made by transparent medical plastic and is divided scale so that the amount of injecting fluid is visible.The gland liner 15 that includes pin medicated cap 23 and pin 16 is prefabricated units, and gland liner 15 is screwed into cylindrical shell 12.Two outthrust 44 at cylindrical shell top are injecting with normal mode with permission with the cause finger grip.
During use, in sterilization wrap, take out syringe 11.Take out pre-assembled gland assembly 14 in the sterilization wrap, and by catching safety helmet 23, gland assembly 14 is screwed into the screw tip 19 of injector cartridge 12, as shown in Figure 2.After removing medicated cap 23, pin 16 is inserted bottle.Come filled syringe 11 by pull-up plunger 13, as shown in Figure 3.Injection then.Finish when injection, as shown in Figure 4, promote plunger 13 downwards, move down and discharge alignment pin 50 and sealing link stopper 37 up to sleeve 48.On this aspect, pin 16 is withdrawn in the plunger 13, thereby and is withdrawn in the cylindrical shell 12, as shown in Figure 5.Syringe 11 is safe now and can not operates.Whole syringe 11 can be handled safely in the mode of being responsible for now.If desired, before injection, in bottle, after the filled syringe 11, can change pin.
In each embodiment, the invention has the advantages that lock in place and pre-assembling gland.By the control aerofluxus, the present invention also provides the slow withdrawal of needle interface.These advantages have been arranged, and the use of socket makes the plunger seal link stopper to the location facility of needle interface.Use piston mobile to allow full consumption fluid after injection is finished, allow plunger to be moved further simultaneously so that the pin withdrawal.
Forward Fig. 8 to Figure 21 to, shown further embodiment of the present invention, wherein use same reference number for those likes of having described.
Slip dividing busing 64 has the front end (tapered leading end) 65 of taper.
With reference to Figure 17 to Figure 21, when being pushed down, plunger 13 collapsed seals 53 are with its downward promotion for plunger 13 after injection (not showing).This dividing busing 64 that will cause sliding is meshed with two finger-type things 62 that cast in gland liner 15 inside.To be pushed out by continuing to promote 13, two finger-type things 62 of plunger, discharge needle interface 17.Simultaneously, the sealing link stopper 36 (not having to show) that is positioned at hollow plunger 13 ends is moved to the inside of plunger 13, and compression spring 26 promotes needle interface 17 to be withdrawn into the inside of hollow notes plug 13.
Other aspect of whole operations of this embodiment is similar to above described in conjunction with Fig. 1 to Fig. 3 and Fig. 4 to Fig. 7.
Be apparent, however, to one skilled in the art that, can make many changes and change to embodiment described herein and do not depart from the spirit or scope of the present invention.
Run through this description, unless context otherwise requires, vocabulary " comprises " and modification has the implication that comprises rather than exclusive implication.
Claims (33)
1. the safety injector of an auto retractable, it is included in the needle assembly of auto retractable wherein, described safety injector has injector cartridge, described injector cartridge has the hollow plunger that is slidably located on wherein, described hollow plunger has near-end and far-end, at its far-end, there is piston apparatus to be associated so that can slide sealedly at described cylindrical shell with it, described needle assembly comprises pin and needle interface, one recess is arranged to keep the described needle interface of described pin in the end of described cylindrical shell, and on described needle interface, be provided with a spring, and described spring action is between the described end of described needle interface and described cylindrical shell, during use, described spring remains on compressive state, described needle interface has the sealing device that is associated with it with the seepage between the described end that prevents described needle interface and described cylindrical shell, described needle interface has around its groove or recess on every side, one locking device is engaged in described groove or the recess so that during use described needle interface is remained in the described end of described injector cartridge to resist the compression of described spring, and the described far-end of wherein said hollow plunger has sealing block, in the phase I, described plunger contacts described needle assembly after injection is finished, and when being further depressed, start the automatic withdrawal of described needle interface and remove when arriving second stage, to discharge described needle interface from described groove or recess by acting on described locking device so that cause described locking device, when arriving described second stage, described sealing block is removed from the described far-end of described plunger, thereby discharge described needle interface, and allow described pin and described spring under the influence of described spring, to be withdrawn in the described hollow plunger thus.
2. the safety injector of auto retractable as claimed in claim 1, wherein said pin and described needle interface are installed in the pin gland, and it can be connected to the described cylindrical shell of described syringe replaceably.
3. the safety injector of auto retractable as claimed in claim 2, wherein, to rely on the device that is connected to described cylindrical shell movably be to provide by having the described gland liner that is installed to the described end of described cylindrical shell by screw device to described needle assembly.
4. the safety injector of auto retractable as claimed in claim 3 wherein connects dependence standard screw connection or so-called road strategic point locked joints and realizes.
5. as the safety injector of each described auto retractable in the claim 2 to 4, described safety injector has injector cartridge, described injector cartridge has the hollow plunger that is slidably located on wherein, described hollow plunger has near-end and far-end, at its far-end, there is piston apparatus to be associated so that can slide sealedly at described cylindrical shell with it, described needle assembly comprises gland liner, pin and needle interface, one recess is arranged to keep the described needle interface of described pin in described gland liner, and described needle interface is provided with a spring, described spring action is between described needle interface and described gland liner, during use, described spring remains on compressive state, described needle interface has the sealing device that is associated with it to prevent the seepage between described needle interface and the described gland liner, described needle interface has around its groove on every side, one locking device is engaged in the described groove so that described needle interface is remained in the described gland liner during use to resist the compression of described spring, and the described far-end of wherein said hollow plunger has sealing block, in the phase I, described plunger contacts described needle assembly after injection is finished, and when being further depressed, start the automatic withdrawal of described needle interface and remove when arriving second stage, to discharge described needle interface from described groove by acting on described needle assembly so that cause the described locking device that is associated with described pin, when arriving second stage, described sealing block is removed from the described far-end of described plunger, thereby discharge described needle interface, and allow described pin and described spring under the influence of described spring, to be withdrawn in the described hollow plunger thus.
6. the safety injector of auto retractable as claimed in claim 5, wherein said gland and described cylindrical shell are whole, and therefore non-exchange, but form the part of described cylindrical shell.
7. the safety injector of each described auto retractable in the claim as described above, wherein said locking device are (or cooperating as the case may be) finger piece or complete ring forms internal edge, that match with described groove around being positioned at described needle interface that is positioned at described gland liner.
8. as the safety injector of each described auto retractable in the claim 1 to 6, wherein, as the case may be, described locking device can be independent of the described cylindrical shell of described gland liner or described syringe, and comprises alignment pin.
9. the safety injector of each described auto retractable in the claim as described above, wherein, though in the described gland liner self that depends on the circumstances or described injector cartridge in finger piece or the ring form, or such as the independently object of alignment pin, comprise that the shape of the parts of described groove in the described needle interface and described locking device can be any suitable shape that is used for required purpose, and comprise, but needn't be limited to, as the shape of circle, squares and triangles etc.
10. the safety injector of each described auto retractable in the claim as described above, wherein said piston apparatus can slide on described plunger to allow described plunger to move to second stage so that start withdrawal automatically from the phase I.
11. the safety injector of auto retractable as claimed in claim 10, the motion of wherein said piston can realize by having around three ridge of described plunger periphery, at any time, only there are two ridge to be positioned at piston seal, make after injection is finished, when extra pressure is applied between described plunger and the described cylindrical shell, described piston seal is upwards promoted along described plunger, thereby allow described plunger to stretch out, and promote pre-assembled pin gland assembly to realize automatic withdrawal by described piston seal.
12. the safety injector of auto retractable as claimed in claim 10, but wherein said piston apparatus is simple compression under the pressure of injecting the increase that is applied when finishing.
13. the safety injector of each described auto retractable in the claim as described above, wherein said needle interface is provided with around its peripheral flange, and the inwall of the described recess in the described gland liner is provided with step, so that described spring is positioned between described flange and the described step, so that during use, described spring remains on compressive state.
14. the safety injector of each described auto retractable in the claim as described above, wherein used an alignment pin, described plunger acts directly on the described needle interface to cause automatic withdrawal, described alignment pin has the end of taper, and the described groove around described needle interface is the groove of taper, the end of the described taper of described alignment pin is placed in the groove of described taper, so that when arriving described second stage, described plunger causes described needle interface to be further promoted in the described recess, thereby the end of the described taper of alignment pin is released the groove of described taper, after injection is finished, described sealing block is removed from described far-end, thereby allows described needle interface and described spring to be withdrawn in the described hollow plunger.
15. the safety injector of auto retractable as claimed in claim 14 prevents that wherein the described sealing device of seepage between described needle interface and the described gland liner preferably is positioned at the simple O type circle or the similar sealing member of the described flanged periphery of described needle interface.
16. the safety injector of auto retractable as claimed in claim 15, in case wherein said alignment pin is provided with its groove from described taper and removes the device that just holds it in the appropriate location, make in case described needle interface is released, do not hinder the withdrawal of described needle interface under the influence of described spring.
17. the safety injector of auto retractable as claimed in claim 16, the described device that wherein described alignment pin is remained on the appropriate location comprises interference engagement, for example, length along described alignment pin has slight tapering so that after described alignment pin was removed from described needle interface, described alignment pin was wedged in the clip.
18. safety injector as each described auto retractable in the claim 1 to 13, wherein have a sleeve be positioned at described needle interface and described spring around, described plunger acts on the described sleeve to cause automatic withdrawal, described alignment pin has when described plunger arrives described second stage described alignment pin can be by its device from removing around the described groove of described needle interface, described plunger causes described sleeve to be further promoted in the described recess, thereby described groove is shifted out in the end of described alignment pin, after injection is finished, described sealing block is removed from described far-end, allows described needle interface and described spring to be withdrawn in the described hollow plunger.
19. the safety injector of auto retractable as claimed in claim 18, wherein said alignment pin does not have the end of taper, so that when described needle interface is maintained in the described gland liner, promptly before withdrawing automatically, described alignment pin provides the more compulsory locking of described needle interface, stops described needle interface to move on either direction.
20. the safety injector of auto retractable as claimed in claim 19, wherein said alignment pin is provided with the flange that is positioned at its lateral taper, and described telescopic end acts on the flange of described taper so that cause described alignment pin to be removed to realize automatic withdrawal.
21. safety injector as each described auto retractable in the claim 18 to 20, the described sealing device that wherein prevents the seepage between described needle interface and the described gland liner is provided by seal washer, described seal washer extends and therefore strides across the described sleeve of described needle interface mouth of encirclement and described spring between described needle interface and described gland liner, make that to be described plunger act directly on result on the described sleeve by described seal washer in the effect that causes withdrawal automatically of described plunger.
22. safety injector as each described auto retractable in the claim 1 to 13, finger piece or ring or other flange component of the internal edge that is positioned at described gland liner have wherein been used, described needle assembly comprises gland liner, the slip dividing busing, gland packing element, needle interface and compression spring, wherein said sleeve is the form that is positioned at described needle interface and described spring slip dividing busing on every side, described plunger acts on described slip dividing busing to cause automatic withdrawal, the described finger piece or the ring that are arranged in described gland liner can be open, and therefore can when arriving described second stage, described plunger remove from described groove around described needle interface, described plunger causes described slip dividing busing to be further promoted in the described recess, thereby described finger piece or ring are shifted out described groove, after injection is finished, described sealing block is removed from described far-end once more, allows described needle interface and described spring to be withdrawn in the described hollow plunger.
23. the safety injector of auto retractable as claimed in claim 22 wherein under the situation of ring, need be provided with discontinuity zone, such as one or more slit or similarly regional to allow described ring to launch.
24. safety injector as each described auto retractable in claim 22 or 23, wherein, described slip dividing busing has corresponding finger piece or the ring expansion of zone conveniently to depend on the circumstances around the taper of its end, allows level and smooth interaction.
25. as the safety injector of each described auto retractable in claim 22 or 23, wherein said gland liner by the engagement of described slip dividing busing to realize that the unfolded part of described finger piece or ring is that corresponding taper is so that level and smooth interaction.
26. safety injector as each described auto retractable in the claim 21 to 25, the described sealing device that prevents seepage between described needle interface and the described gland liner is also provided by seal washer, described seal washer extends between described needle interface and described gland liner, therefore and stride across the dividing busing that surrounds described needle interface and described spring, make that to be described plunger directly act on result on the described dividing busing sleeve by described seal washer in the effect that causes withdrawal automatically of described plunger.
27. the safety injector of auto retractable as claimed in claim 26, wherein when described plunger is pressed downward after the injection, described plunger contacts described sealing member, with it to pressing down, cause described slip dividing busing to be meshed with the described finger piece or the ring that are formed on described gland liner inside, and by continuing to promote described plunger, described finger piece or ring are forced out, discharged described needle interface, simultaneously, the described sealing block that is positioned at the described end of described hollow plunger is removed at described plunger, and described compression spring forces described needle interface to be withdrawn in the described hollow plunger.
28. the safety injector of auto retractable as claimed in claim 27 has wherein been used two finger pieces in described gland liner.
29. the safety injector of each described auto retractable in the claim wherein is provided with the pin medicated cap to keep described pin before using for described assembly as described above.
30. the safety injector of auto retractable as claimed in claim 29, wherein said pin gland preferably remain in the described pin medicated cap by interference engagement, preferably, the coupling spline of the keyway on the coupling pin medicated cap inside are arranged in described pin gland outside.
31. the safety injector of each described auto retractable in the claim as described above, the described cylindrical shell of wherein said syringe be transparent plastic preferably, and by indexing to show fluid depth.
32. the safety injector of each described auto retractable in the claim as described above, described plunger is made and be mounted to wherein said piston preferably by synthetic rubber so that seal by the interference engagement between described plunger and the described cylindrical shell, thereby allow in common mode described fluid to be discharged from from described syringe through described pin.
33. the safety injector of an auto retractable, it is in conjunction with the accompanying drawings Fig. 1 to Fig. 3, Fig. 4 to Fig. 7 basically as herein, or Fig. 8 to Figure 21 is described.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2005901208A AU2005901208A0 (en) | 2005-03-14 | Exchange needle auto retractable syringe | |
| AU2005901208 | 2005-03-14 | ||
| AUPCT/AU2005/001132 | 2005-08-02 | ||
| AU2005906317 | 2005-11-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101175522A true CN101175522A (en) | 2008-05-07 |
Family
ID=36991179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006800164823A Pending CN101175522A (en) | 2005-03-14 | 2006-03-14 | Auto retractable syringe |
Country Status (4)
| Country | Link |
|---|---|
| CN (1) | CN101175522A (en) |
| UA (1) | UA92005C2 (en) |
| WO (1) | WO2006096901A1 (en) |
| ZA (1) | ZA200708682B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106668989A (en) * | 2015-11-10 | 2017-05-17 | C-La中国有限公司 | Retractable syringe |
| CN107457161A (en) * | 2017-09-18 | 2017-12-12 | 湖北云万光电子科技有限公司 | A kind of connector-cable point glue equipment |
| CN109922739A (en) * | 2016-08-10 | 2019-06-21 | 萨格外科公司 | Needle device |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202007013096U1 (en) * | 2007-09-19 | 2009-03-05 | Hamilton Bonaduz Ag | Syringe with exchangeable needle |
| CN101927048B (en) * | 2009-06-24 | 2012-03-21 | 张淑茗 | Retraction structure for safety syringe |
| CN101601882B (en) * | 2009-07-15 | 2012-02-01 | 无锡市宇寿医疗器械股份有限公司 | Disposable safety syringe with replaceable and automatically retracted needle |
| CA3004771C (en) | 2015-11-10 | 2024-01-09 | Global Medisafe Holdings Ltd | Retractable syringe |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5019044A (en) * | 1989-08-14 | 1991-05-28 | Tsao Chien Hua | Safety hypodermic syringe |
| FR2755614A1 (en) * | 1996-11-13 | 1998-05-15 | Dufort Maurice Louis | Hypodermic syringe |
| US6183440B1 (en) * | 2000-05-25 | 2001-02-06 | Becton, Dickinson And Company | Hypodermic syringe having a selectively retractable needle |
| EP1438979A1 (en) * | 2002-12-19 | 2004-07-21 | Henrik Brocks | Disposable hypodermic syringe |
-
2005
- 2005-08-02 WO PCT/AU2005/001132 patent/WO2006096901A1/en not_active Application Discontinuation
-
2006
- 2006-03-14 CN CNA2006800164823A patent/CN101175522A/en active Pending
- 2006-03-14 UA UAA200711347A patent/UA92005C2/en unknown
-
2007
- 2007-10-11 ZA ZA200708682A patent/ZA200708682B/en unknown
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106668989A (en) * | 2015-11-10 | 2017-05-17 | C-La中国有限公司 | Retractable syringe |
| CN106668989B (en) * | 2015-11-10 | 2021-11-09 | C-La中国有限公司 | Retractable syringe |
| CN109922739A (en) * | 2016-08-10 | 2019-06-21 | 萨格外科公司 | Needle device |
| CN107457161A (en) * | 2017-09-18 | 2017-12-12 | 湖北云万光电子科技有限公司 | A kind of connector-cable point glue equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| UA92005C2 (en) | 2010-09-27 |
| ZA200708682B (en) | 2008-10-29 |
| WO2006096901A1 (en) | 2006-09-21 |
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Open date: 20080507 |