CN101433742B - Disposable injection syringe with pre-store medicament - Google Patents
Disposable injection syringe with pre-store medicament Download PDFInfo
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- CN101433742B CN101433742B CN2007101863022A CN200710186302A CN101433742B CN 101433742 B CN101433742 B CN 101433742B CN 2007101863022 A CN2007101863022 A CN 2007101863022A CN 200710186302 A CN200710186302 A CN 200710186302A CN 101433742 B CN101433742 B CN 101433742B
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Abstract
The invention provides a medicine prestored disposable injector, which comprises an injection tube, a starting group, a medicine tube, and a pushing part capable of pushing the medicine tube filled with the medicine, wherein the injection tube is provided with at least one guide slot formed on the inner surface of the injection tube; the medicine tube is provided with a vessel arranged in the injection tube, a needle body communicated with the vessel and penetrating out of the injection tube, and a pushing arm piece which is annularly fixed with the vessel, and is detachably connected with a ring seat, so that the medicine tube can be steadily fixed in the injection tube; the pushing arm piece is provided with at least one fixed pin arranged in the guide slot of the injection tube; and the starting group is controlled by the medicine tube, and the vessel is started with the needle body and the pushing arm piece to be hidden in pore canals of the injection tube by the fixed pin along the guide slot of the injection tube. Therefore, the injector can improve the stability for injecting and withdrawing the needle body.
Description
Technical field
The present invention relates to a kind of syringe, particularly relate to a kind of disposable injection syringe that includes the pre-store medicament of medicament in advance.
Background technology
Syringe with No. 6229055 cases of U.S. Pat is an example, a cartridge case combination plant that mainly will be filled with medicament (as vaccine) is in advance gone in the syringe, reach injection medicament and cover, hide the purpose of a needle body, the injury of exempting the daily use syringe cylinder of medical personnel is with frightened.
But, use includes the syringe of medicament, main purpose is will simplify in the clinical operation to extract injection medicament in the medicinal cupping in advance with injection tube, the process of injecting again, except can simplifying the medical procedures program, also can avoid being equipped with and taking place in the medicine process to pollute or situations such as pinprick extracting medicament etc. with injection tube, but, the cartridge case of US6229055 case can not directly be contained in this syringe, really do not reach the operation sequence of simplifying the treatment of clinical treatment injectable drug, and want pumpback, the more unitary construction that causes of key element of hiding this needle body is complicated, forms the puzzlement of making and using.
Therefore, in order to improve aforementioned medical instruments disappearance in the use, No. 200610082837.0 case that the previous institute of this case applicant researches and develops and applies for, mainly cartridge case directly is preset in this syringe, belong to an element in this syringe, therefore, during use, need only open aseptic packaging, just can directly implement the injection for curing operation, and after injection finishes, pumpback synchronously automatically, hide this needle body in this syringe, and can provide a kind of simplification clinical treatment operation routine, and promote the syringe of injection operation safety.
But, this case inventor is as satisfying, still adhering to excelsior spirit, continue to be engaged in the developmental research of injection pipe fitting, thereby find aspect the stability and sealing of aforementioned cartridge case when injection medical treatment and automatic pumpback the space of improvement is arranged still, so, constantly detailed think of funiculus and the skilful intelligence of utilization are are actively researched and developed with great concentration, eventually appearance of the present invention must be arranged.
Summary of the invention
The objective of the invention is is providing a kind of disposable injection syringe that can promote the pre-store medicament of structural stability and sealing effectiveness.
The disposable injection syringe of pre-store medicament of the present invention, comprise an injection tube, startup group, be contained in a cartridge case in this injection tube, and can push a pushing piece of medicament in this cartridge case, this startup group have a keeper being positioned in this injection tube movablely, spacing in this keeper and this injection tube a ring seat and be resisted against this ring seat and this injection tube between a flexible member, it is characterized in that:
This injection tube has a tube wall that centers on an axis and define a duct, this duct is used and is installed ccontaining for this startup group, this tube wall has opposing a forward open end and a rear open end, at least one guide groove that is formed on inner surface and extends along this axis reaches at least one hole clipping with this guide groove cross connection.
This cartridge case has in the duct that is contained in this injection tube and is filled with a container of medicament, be contained in this container movablely and seal a gas seal member of this container, be communicated with and pass a needle body of the port of export before this injection tube along this axis with this container, solid this push arm spare outside this container of ring, and at least one fixing pin, this push arm spare is detachable and liftoffly is connected with this ring seat, make this cartridge case spacing in this injection tube and contiguous this forward open end, this steady pin is with this container formation interlock and be set in the guide groove of this injection tube.
The part of this pushing piece is set in this cartridge case, and combine interlock with this gas seal member, can push this cartridge case and pass this keeper towards this injection tube forward open end direction displacement together with this push arm spare, and remove the fixing positioning relation of this keeper and this ring seat, and this flexible member of startup pushes this ring seat, make this container together with this needle body and this push arm spare, follow the guide groove of this injection tube to be moved in the duct that is hidden in this injection tube with this steady pin.
Special efficacy of the present invention is to prestore and seal this cartridge case by this injection tube, reach with firm this cartridge case of this push arm spare in this injection tube, follow the guide groove slippage of this injection tube simultaneously with the steady pin of this push arm spare, and then promote the stability when injecting medical treatment and automatic pumpback.
Description of drawings
Fig. 1 is a view sub-anatomy, and first preferred embodiment of the disposable injection syringe of pre-store medicament of the present invention is described;
Fig. 2 is the cutaway view after this first preferred embodiment combination;
Fig. 3 is along the obtained cutaway view of straight line III-III among Fig. 2;
Fig. 4 is a cutaway view, and the situation of a pushing piece injection medicament of this first preferred embodiment is described;
Fig. 5 is a cutaway view, and an injection tube and the two any revolution of cartridge case of this first preferred embodiment are described, makes a steady pin break away from a hole clipping and enters in the guide groove;
Fig. 6 is a cutaway view, illustrates that this pushing piece of this first preferred embodiment is moved to the injection stroke terminal point;
Fig. 7 is a cutaway view, illustrates that this keeper of this first preferred embodiment breaks away from this ring seat;
Fig. 8 is a cutaway view, and the flexible member that this first preferred embodiment is described bounces up this cartridge case and is moved in the injection tube, and needle body of interlock is hidden in this injection tube synchronously;
Fig. 9 is a cutaway view, and second preferred embodiment of the disposable injection syringe of pre-store medicament of the present invention is described;
Figure 10 is a cutaway view, and the 3rd preferred embodiment of the disposable injection syringe of pre-store medicament of the present invention is described;
Figure 11 is a cutaway view, and the 3rd preferred embodiment and the socket of a standard pin group are described;
Figure 12 is a cutaway view, and the flexible member that the 3rd preferred embodiment is described bounces up this cartridge case and is moved in the injection tube, and needle body of interlock is hidden in this injection tube synchronously;
Figure 13 is a cutaway view, and the 4th preferred embodiment of the disposable injection syringe of pre-store medicament of the present invention is described;
Figure 14 is a cutaway view, illustrates that a pushing piece and ring taps of the 4th preferred embodiment fastens mutually;
Figure 15 is a cutaway view, and the 5th preferred embodiment of the disposable injection syringe of pre-store medicament of the present invention is described;
Figure 16 is a cutaway view, and the flexible member that the 5th preferred embodiment is described bounces up this cartridge case and is moved in the injection tube, and needle body of interlock is hidden in this injection tube synchronously;
Figure 17 is a cutaway view, and the 6th preferred embodiment of the disposable injection syringe of pre-store medicament of the present invention is described;
Figure 18 is a cutaway view, and the flexible member that the 6th preferred embodiment is described bounces up this cartridge case and is moved in the injection tube, and needle body of interlock is hidden in this injection tube synchronously;
Figure 19 is a cutaway view, and the 7th preferred embodiment of the disposable injection syringe of pre-store medicament of the present invention is described;
Figure 20 is a cutaway view, and the flexible member that the 7th preferred embodiment is described bounces up this cartridge case and is moved in the injection tube, and needle body of interlock is hidden in this injection tube synchronously.
The specific embodiment
The disposable injection syringe of the pre-store medicament that foundation the present invention is proposed below in conjunction with accompanying drawing and preferred embodiment is elaborated.
Before the present invention is described in detail, be noted that in the following description content similar elements is to represent with identical numbering.
Consult Fig. 1, Fig. 2 and Fig. 3, Fig. 4, first preferred embodiment of the disposable injection syringe of pre-store medicament of the present invention comprises: injection tube 1, startup group 2, a cartridge case 3, and a pushing piece 4.
This injection tube 1 has a tube wall 12 that centers on an axis and define a duct 11, protecting cover 15 behind the preceding protecting cover of two hole clippings 13,14, one, two sealing strips 161, sealing member 162, an airtight cover 17, and two block fins 18 (consulting Fig. 7).
This tube wall 12 has opposing a forward open end 121 and a rear open end 122, extend and define a ring rib 124 of an annular space 123 towards this rear open end 122 from this forward open end 121 with inner surface, be formed on the heavy wall district 125 that these tube wall 12 2 sides and thickness are slightly larger than other position relatively along this axis, follow this heavy wall district 125 to be formed on two guide grooves 126 of this inner surface, be formed on outer surface and be respectively adjacent to preceding shoulder 127 of this forward open end 121 and this rear open end 122 and one after shoulder 128, be darted at a snap ring 129 of this inner surface and contiguous this forward open end 121, and be formed on a scrobicular ring 120 of this inner surface and contiguous this rear open end 122.
This guide groove 126 is the long guide groove that is defined in 122 of this forward open end 121 and this rear open end in this preferred embodiment.
Described hole clipping 13 laterally runs through this tube wall 12 and is communicated with the leading section of this guide groove 126, and the forward open end 121 of contiguous this tube wall 12.
Should before protecting cover 14 be nested with outside this tube wall 12 and involutory with this preceding shoulder 127, have a surrounding wall 141 around this axis.
This back protecting cover 15 is nested with outside this tube wall 12 and is involutory with this back shoulder 128, has a surrounding wall 151 around this axis.
Described sealing strip 161 respectively can tear the ground sealing label these tube wall 12 outer surfaces with should before between the protecting cover 14, reach these tube wall 12 outer surfaces and this is afterwards between the protecting cover 15.
Sealing part 162 makes this injection tube 1 form sealing state in order to hermetic closed this hole clipping 13.
These airtight cover 17 installations are contained in this tube wall 12 and are somebody's turn to do between the preceding protecting cover 14, have a first end 171 and the second end 172 of opposing setting.
Described block fin 18 is formed on these relative two sides of tube wall 12 outer surface levels and contiguous this rear open end 122, and described block fin 18 two axial sides can be for finger against (consulting Fig. 7).
This startup group 2 has a keeper 21, a ring seat 22, and a flexible member 23.
The snap ring 129 that this keeper 21 is movablely in the duct 11 with this injection tube 1 fixes mutually, has of running through along this axis and bores a hole 211.
This ring seat 22 is mounted between the spacing ring rib 124 and the perforation 211 of this keeper 21 at this injection tube 1, have the perforation 211 that passes this keeper 21 and and this ring rib 124 between be reserved with the butting section 221 of a little gap 220 as start-up space, be formed on a holding parts 222 in the other end and the urgent perforation that is fastened on this keeper 21 211, and be formed on an abutment face 223 between this butting section 221 and this holding parts 222.
This flexible member 23 is installed and is contained in the annular space 123 of this injection tube 1, has respectively against abutment end 231 of the abutment face 223 of the forward open end 121 of this injection tube 1 and this ring seat 22 to bounce up and hold 232 with one.
This cartridge case 3 has the container 31 that is filled with medicament, gas seal member 32, needle body 33, a push arm spare 34, and two steady pins 35.
This container 31 is a kind of glass in this preferred embodiment, be mounted in the duct 11 that is contained in this injection tube 1, have and be formed on a front end and an airtight cervical region 311 that is sleeved on the first end 171 of this airtight cover 17, be formed on a rear open end 312 of rear end, a ring edge 313 that is formed on the rear end and contacts with the tube wall 12 of this injection tube 1 reaches a duct 314 that connects this cervical region 311 along this axis.
This gas seal member 32 be contained in this container 31 movablely and with inner surface 315 airtight contacts of this container 31.
This needle body 33 is about 37.4mm in the length of this preferred embodiment, have with cervical region 311 affixed of being communicated with of this container 31 and fasten end 331, and pass the preceding port of export 121 of this injection tube 1 and be plugged on a cutting tip 332 of the second end 172 of this gas seal member 17 airtightly along this axis.
This push arm spare 34 has the solid matrix 341 outside the cervical region 311 of this container 31 of ring, and extend and be resisted against a plurality of push arms 342 on this keeper 21 with the holding parts 222 outer rim fits of this ring seat 22 along parallel this axis direction, or form the push arm 342 of single loop configuration as this preferred embodiment from this matrix 341 ring edge.
Described steady pin 35 is formed in push arm 342 outer surfaces of this push arm spare 34 and is set in the guide groove 126 of this injection tube 1 in this preferred embodiment, can engage with the hole clipping 13 of this injection tube 1 respectively, this push arm spare 34 is stabilized in this injection tube 1 together with this container 31.
What deserves to be mentioned is, the maximum outside diameter of this container 31 is less than the bore of the rear open end 122 of this injection tube 1, bore greater than the forward open end 121 of this injection tube 1 so can be assembled into the rear open end 122 of this container 31 by this injection tube 1 in this injection tube 1 before dispatching from the factory very simply in advance.
This pushing piece 4 has a central siphon 41, seal these central siphon 41 1 ends and use a wing plate 42 for the finger backup, and combine with this gas seal member 34 and with these central siphon 41 belled axostylus axostyles 43.
This central siphon 41 has an edge clipping 411 that is formed on inner surface and adjacent front end.
This wing plate 42 has a bulge loop 421 that is formed on periphery, engages with the scrobicular ring 120 of this injection tube 1 after in the tube wall 12 that buries this injection tube 1.
This axostylus axostyle 43 has a draw-in groove 431 that is formed on the rear end and engages with the edge clipping 411 of this central siphon 41, makes this central siphon 41 be positioned at extended configuration with this axostylus axostyle 43.
What deserves to be mentioned is that the central siphon 41 of this pushing piece 4 is protected interior by surrounding wall 151 rings of this back protecting cover 15, can avoid this pushing piece 4 of external force or foreign object false touch.
Consult Fig. 2, Fig. 4, when injecting purposes, reverse the preceding protecting cover 14 and back protecting cover 15 that unload on this injection tube 1 earlier, separate described sealing strip 16 and tear synchronously, to appear this needle body 33 and this pushing piece 4, then under the situation in this cartridge case 3 has been stabilized in this injection tube 1, utilize the forefinger of this injection tube 1 of clamping and middle finger against described block fin 18, continue the wing plate 42 that forward pushes this pushing piece 4 with thumb again, the forward open end 121 direction slippages of this gas seal member 32 of interlock along this container 31 towards this injection tube 1, just can be in the passing process, discharge the air in this container 31 earlier, because this gas seal member 32 must be guaranteed the airtight effect of this container 31 and prevent outside air or aqueous vapor enters, and and 31 in this container be formed with bigger airtight interference and frictional resistance, therefore, can utilize the continuous action relation of this pushing piece 4 and this gas seal member 32, with firm this injection tube 1 of a hands, the another hands turns round this pushing piece 4, or with firm this pushing piece 4 of a hands, the another hands turns round this injection tube 1, make the hole clipping 13 of this injection tube 1 of steady pin 35 slippages of this push arm spare 34, remove the positioning states of this cartridge case 3 and this injection tube 1, continue to push this pushing piece 4 again, carry out injecting liquid drug, make medicinal liquid see through this needle body 33 and be injected to animal body, finish the injection purposes by this cartridge case 3.
Consult Fig. 5, Fig. 6 and Fig. 7, when this pushing piece 4 pushes to the injection stroke terminal point, and after finishing the injection purposes, these pushing piece 4 these gas seal members 32 of meeting interlock are resisted against the cervical region 311 of the container 31 of this cartridge case 3, at this moment, if continue to push forward open end 121 displacements of this pushing piece 4 towards this injection tube 1, the push arm 342 that the cartridge case 3 of this displacement can see through this push arm spare 34 promotes the forward open end 121 direction displacements of this keeper 21 towards this injection tube 1.
Because 124 in the ring rib of the butting section 221 of this ring seat 22 and this syringe 1 is reserved with this little gap 220 as start-up space, can disperse to start the viscous resistance of moment, and after startup, be hampered by this ring rib 124 at once and can't displacement, therefore, have only this keeper 21 to push with this pushing piece 4, and discharge the holding parts 222 of this ring seat 22, and along the butting section 221 of this ring seat 22 towards the direction displacement of this forward open end 121, remove the positioning relation of this keeper 21 and this ring seat 22 and start this flexible member 23, at this moment, this ring seat 22 that can't be again moves towards forward open end 121 directions of injection tube 1, can more in depth be combined into one to being hampered by this matrix 341 and this container 31 with this holding parts 222 with push arm 342 cover of this push arm spare 34, and because the opposition of the ring rib 124 of this injection tube 1, the draw-in groove 431 that pushes the axostylus axostyle 43 of this pushing piece 4 breaks away from the edge clipping 411 of this central siphon 41, removes the fixing relation of this central siphon 41 and this axostylus axostyle 43 synchronously.
Consult Fig. 7, Fig. 8, whereby, back stretch be opened and be discharged to this flexible member 23 that is activated can by bullet, and hold 232 with the bouncing up of abutment face 223 that is resisted against this ring seat 22, promoting this ring seat 22 and this cartridge case 3 follows the guide groove 126 of this injection tube 1 smooth and easy and stably be moved to the rear open end 122 of contiguous this injection tube 1 with this steady pin 35, part axostylus axostyle 43 is received in this central siphon 41 and is contraction state, and drive this needle body 33 towards these injection tube 1 rear open end 122 direction displacements, and then this ring seat 22 and this needle body 33 be retained in the duct 11 of this injection tube 1, make the injection tube 1 that abandons to isolate this needle body 33 with this tube wall 12, exempt medical personnel behind injection medicament, contact with this needle body 33 because tidying up this syringe 1, cause needle stick injury, the danger of infecting.
What deserves to be mentioned is, when this pushing piece 4 is removed the positioning relation of this keeper 21 and this ring seat 22 and is started this flexible member 23, the wing plate 42 of this pushing piece 4 can be hidden in the duct 11 of this injection tube 1 just fully, and engage with the scrobicular ring 120 of this injection tube 1 with this bulge loop 421, this pushing piece 4 is positioned in this injection tube 1, and without any can being exposed outside for the position of grasping, and can't be operated again, make this syringe can't be repeated again to use.
Consult Fig. 9, the present invention's second preferred embodiment and this first preferred embodiment are roughly the same, difference be in: this needle body 33 is long than the needle body in first preferred embodiment in the length of this preferred embodiment, because length is obviously greater than needle body shown in Figure 2 33, therefore, this injection tube 1, this startup group 2, this cartridge case 3, and this pushing piece 4 all slightly is longer than this first preferred embodiment in the configuration on the physical dimension.This long needle body 33 is primarily aimed at muscle and deep or the thicker sick body of fat deposit is injected purposes.
Consult Figure 10, Figure 11, the present invention's the 3rd preferred embodiment and this first preferred embodiment are roughly the same, difference be in:
This cartridge case 3 also has with fastening of this needle body 33 holds 331 socket needle stands 36 that are connected, and reaches a pin lid 37 that protects this needle body 33 with these socket needle stand 36 sockets and ring.This cartridge case 3 is the direct first end 171 airtight cervical regions 311 that are sleeved on this container 31 with this airtight cover 17 when dispatching from the factory, and the second end 172 of this airtight cover 17 is contained in this preceding protecting cover 14.This needle body 33 is general common on the market standard pin group together with this socket needle stand 36.
Consult Figure 11, Figure 12, when injecting purposes, need only directly rotate the preceding protecting cover 14 and back protecting cover 15 that unload on this injection tube 1, described sealing strip 361 is ruptured synchronously, place in the duct 11 of this tube wall 12 with the socket needle stand 36 of this pin group forward open end 122 again by this injection tube 1, and cover is fixed in the cervical region 311 of these cartridge case 3 containers 31, unloads the pin lid 37 of this pin group again, makes the cutting tip 332 of this needle body 33 pass the forward open end 121 of this injection tube 1.
Whereby, can in these pushing piece 4 passing processes, finish the injection purposes equally, reach pumpback automatically synchronously, hide this needle body 33 in this injection tube 1, make the injection tube 1 that abandons to isolate these needle bodies 33 with this tube wall 12.
Consult Figure 13, Figure 14, the present invention's the 4th preferred embodiment and this first preferred embodiment are roughly the same, difference be in:
This cartridge case 3 also has a ring taps 38 that is nested with in the rear open end 312 of this container 31.This ring taps 38 has a bulge loop 381 that is formed on inner surface.
The central siphon 41 of this pushing piece 4 also has a retaining edge 412 that is formed on outer surface and contiguous this front end.
When this pushing piece 4 pushes to the injection stroke terminal point, and after finishing the injection purposes, the retaining edge 412 of this pushing piece 4 is against the bulge loop 381 of the ring taps 38 of this cartridge case 3, so need only continue to push this pushing piece 4, just can at this pushing piece 4 in the process of forward open end 121 displacements of this injection tube 1, directly form thrust and push of the forward open end 121 direction displacements of these cartridge case 3 these keepers 21 of promotion synchronously towards this injection tube 1.
Consult Figure 15, Figure 16, the present invention's the 5th preferred embodiment and this first preferred embodiment are roughly the same, difference be in:
The tube wall 12 of this injection tube 1 also has an expander section 191 in abutting connection with this rear open end 122.
This cartridge case 3 is the general pre-injection tube that is filled with vaccine in this preferred embodiment, has to be formed on the rear end and to slide a block edge 39 in this expander section 191.
Whereby, equally can be in the passing process of this pushing piece 4, push arm 342 with this push arm spare 34 is passed the forward open end 121 direction displacements of this keeper 21 towards this injection tube 1, and remove the fixing positioning relation of this keeper 21 and this ring seat 22, and this flexible member 23 of startup pushes these ring seats 22, make this container 31 together with this needle body 33 and this push arm spare 34, follow the guide groove 126 of this injection tube 1 with this steady pin 35, and follow this expander section 191 to be moved in the duct 11 that is hidden in this injection tube 1 with this block edge 39, finish the injection purposes, and pumpback automatically synchronously, hide this needle body 33 in this injection tube 1, make this injection tube 1 that abandons to isolate this needle body 33 with this tube wall 12.
Consult Figure 17, Figure 18, the present invention's the 6th preferred embodiment and this first preferred embodiment are roughly the same, difference be in:
The container 31 of this cartridge case 3 is a kind of thermo-plastic forming product in this preferred embodiment.This push arm spare 34 has by parallel this axis direction of this container 31 front end edges and extends and be resisted against a plurality of push arms 343 on this keeper 21 with holding parts 222 fits of this ring seat 22.This steady pin 35 is formed on push arm 343 outer surfaces of this push arm spare 34 and is set in the guide groove 126 of this injection tube 1 in this preferred embodiment, and engages with the hole clipping 13 of this injection tube 1 respectively, and this push arm spare 34 is stable in this injection tube 1 together with this container 31.
Whereby, equally can be in the passing process of this pushing piece 4, push arm 343 with this push arm spare 34 is passed the forward open end 121 direction displacements of this keeper 21 towards this injection tube 1, and remove the fixing positioning relation of this keeper 21 and this ring seat 22, and this flexible member 23 of startup pushes these ring seats 22, make this container 31 together with this needle body 33 and this push arm spare 34, follow the guide groove 126 of this injection tube 1 to be moved in the duct 11 that is hidden in this injection tube 1 with this steady pin 35, finish the injection purposes, and pumpback automatically synchronously, hide this needle body 33 in this injection tube 1, make this injection tube 1 that abandons to isolate this needle body 33 with this tube wall 12.
Consult Figure 19, Figure 20, the present invention's the 7th preferred embodiment and the 6th preferred embodiment are roughly the same, difference be in:
The guide groove 126 of the tube wall 12 of this injection tube 1 is the rear open end 122 of a short-range missile groove and contiguous this tube wall 12 in this preferred embodiment.This hole clipping 13 laterally runs through this tube wall 12 and is communicated with this guide groove 126 leading sections, and the rear open end 122 of contiguous this tube wall 12.
The steady pin 35 of this cartridge case 3 is formed on the ring edge kenel of the rear open end 312 of this container 31 for relative this hole clipping 13.
Whereby, equally can be in the passing aerofluxus of this pushing piece 4, in revolution and the injection process, push arm 343 with this push arm spare 34 is passed the forward open end 121 direction displacements of this keeper 21 towards this injection tube 1, and remove the fixing positioning relation of this keeper 21 and this ring seat 22, and this flexible member 23 of startup pushes these ring seats 22, make this container 31 together with this needle body 33 and this push arm spare 34, follow the guide groove 126 of this injection tube 1 to be moved in the duct 11 that is hidden in this injection tube 1 with this steady pin 35, finish the injection purposes, and pumpback automatically synchronously, hide this needle body 33 in this injection tube 1, make this injection tube 1 that abandons to isolate this needle body 33 with this tube wall 12.
Conclude above-mentionedly, the disposable injection syringe of pre-store medicament of the present invention has effect as described below and advantage, so can reach the object of the invention really:
One, the present invention can install this cartridge case 3 in advance and be contained in this injection tube 1, make the present invention compared to conventional art, can simplify and use preceding the need to extract injection medicament with injection tube earlier, or need elder generation to assemble cartridge case and syringe before using, could implement the process of injection medicament, and promote the convenience on using.
Two, directly be preset in this injection tube 1 owing to this cartridge case 3, belong to an element in this syringe, when therefore using, need only open tube wall 12, preceding protecting cover 14, back protecting cover 15 and described sealing strip 16 formed sealed, sterile packings by this injection tube 1, just can directly implement the injection for curing operation, and after injection was finished, pumpback automatically synchronously, hiding this needle body 33 reached simple, quick and safe medical procedures in this injection tube 1.
Three, importantly, the present invention can be by the spacing relation of this push arm spare 34 with this ring seat 22, and this is with the snap-fit relationship of rationed marketing 35 with this hole clipping 13, this cartridge case 3 is stabilized in this injection tube 1, and follow guide groove 126 displacements of this injection tube 1, and then can promote injection and the stability during pumpback pin group with this steady pin 35.
Four, the present invention can be after injection, automatically this needle body 33 is hidden in the duct 11 of this injection tube 1 easily, make this injection tube 1 that abandons to isolate this needle body 33 with this tube wall 12, exempt medical personnel behind injection medicament, contact with this needle body 33 because tidying up this needle body 33, cause the danger of needle stick injury, infection, and can promote convenience and safety that clinical treatment uses the back to dispose.
Claims (19)
1. the disposable injection syringe of a pre-store medicament, comprise an injection tube, startup group, be contained in a cartridge case in this injection tube, an and pushing piece of the interior medicament of this cartridge case of propelling movement, this startup group has a keeper that is installed in this injection tube, be limited in a ring seat in this keeper and this injection tube, and be resisted against a flexible member between this ring seat and this injection tube, it is characterized in that:
This injection tube has a tube wall that centers on an axis and define a duct, this duct is used for this startup group ccontaining, this tube wall has a forward open end and rear open end of opposing setting, at least one guide groove that is formed on inner surface and extends along this axis reaches at least one hole clipping with this guide groove cross connection;
This cartridge case has in the duct that is contained in this injection tube and is filled with a container of medicament, be installed in this container and seal a gas seal member of this container, be communicated with and pass a needle body of the preceding port of export of this injection tube along this axis with this container, the solid push arm spare outside this container of ring, and at least one steady pin, this push arm spare is connected with this ring seat, this cartridge case is limited in this injection tube and contiguous this forward open end, this steady pin and this container interlock and be set in the guide groove of this injection tube;
This pushing piece partly is set in this cartridge case, and combine interlock with this gas seal member, pass of the forward open end direction displacement of this keeper in order to push this cartridge case together with this push arm spare towards this injection tube, and remove the fixing positioning relation of this keeper and this ring seat, and this flexible member of startup pushes this ring seat, make this container together with this needle body and this push arm spare, follow the guide groove of this injection tube to be moved in the duct that is hidden in this injection tube with this steady pin.
2. the disposable injection syringe of pre-store medicament as claimed in claim 1 is characterized in that:
The hole clipping of this injection tube runs through this tube wall and this guide groove leading section of cross connection, and the steady pin holding of this cartridge case is in the hole clipping of this injection tube, and this injection tube and the two one of them revolution of this cartridge case, and this steady pin breaks away from this hole clipping and enters in this guide groove.
3. the disposable injection syringe of pre-store medicament as claimed in claim 2 is characterized in that:
The guide groove of this injection tube respectively has two and corresponding mutually with hole clipping, and the steady pin of this cartridge case has two, and is set in respectively in the described hole clipping before injecting.
4. the disposable injection syringe of pre-store medicament as claimed in claim 2 is characterized in that:
The guide groove of this injection tube for long guide groove and boundary between this forward open end and this rear open end, described hole clipping is positioned at the leading section of this guide groove and the forward open end of being close to this tube wall, relative this hole clipping of the steady pin of this cartridge case is arranged on this push arm spare outer surface.
5. the disposable injection syringe of pre-store medicament as claimed in claim 2 is characterized in that:
The guide groove of this injection tube is the short-range missile groove, and described hole clipping is positioned at the rear open end of leading section and contiguous this tube wall of this guide groove, and relative this hole clipping of the steady pin of this cartridge case is arranged on the rear open end of this container.
6. as the disposable injection syringe of claim 1 or 4 or 5 described pre-store medicaments, it is characterized in that:
This push arm spare and this container are one-body molded, have from this container leading section along parallel this axis extend and with this ring seat fit against at least one push arm of this keeper.
7. as the disposable injection syringe of claim 1 or 4 or 5 described pre-store medicaments, it is characterized in that:
This push arm spare installation sleeve is combined in this container leading section.
8. the disposable injection syringe of pre-store medicament as claimed in claim 7 is characterized in that:
This push arm spare has the solid matrix at this container leading section of ring, and and from this matrix outer rim along parallel this axis extend and with this ring seat fit at least one push arm against this keeper, described steady pin correspondence respectively is arranged on this push arm outer surface.
9. the disposable injection syringe of pre-store medicament as claimed in claim 2 is characterized in that:
This injection tube also has a hermetic closed described hole clipping of sealing member.
10. the disposable injection syringe of pre-store medicament as claimed in claim 1 is characterized in that:
This pushing piece has a central siphon and axostylus axostyle of mutual engaging, and this axostylus axostyle is set in this cartridge case and with the gas seal member of this cartridge case and combines interlock.
11. the disposable injection syringe of pre-store medicament as claimed in claim 1 is characterized in that:
This injection tube also has protecting cover behind a preceding protecting cover and, the tube wall of this injection tube also has shoulder behind preceding shoulder being formed on outer surface and being respectively adjacent to this forward open end and this rear open end and, this preceding protecting cover is nested with at the tube wall of this injection tube and involutory with this preceding shoulder, and have ring and cover a surrounding wall of this needle body, this back protecting cover is nested with at the tube wall of this injection tube and involutory with this back shoulder, has the surrounding wall that ring covers this pushing piece.
12. the disposable injection syringe of pre-store medicament as claimed in claim 11 is characterized in that:
This injection tube also has two sealing strips, respectively sealing label the tube wall of this injection tube with should before between the protecting cover, reach the tube wall of this injection tube and this is afterwards between the protecting cover.
13. the disposable injection syringe of pre-store medicament as claimed in claim 11 is characterized in that:
This injection tube also has and is nested with in this preceding protecting cover and forms an airtight cover of interlock with this surrounding wall, and this airtight cover has a first end of this container of fit, and a second end of planting airtightly for this needle body.
14. the disposable injection syringe of pre-store medicament as claimed in claim 1 is characterized in that:
The vessel of this cartridge case has a cervical region that forms the pro-end, and is formed on a rear end rear open end that penetrates for this pushing piece.
15. the disposable injection syringe of pre-store medicament as claimed in claim 14 is characterized in that:
The container of this cartridge case also has a ring taps that is nested with in the rear open end of this container, and this ring taps has a bulge loop that is formed on inner surface.
16. the disposable injection syringe of pre-store medicament as claimed in claim 14 is characterized in that:
It is fixed and be communicated with that the cervical region of this container and this needle body one fastens end, and a cutting tip of this needle body passes the forward open end of this injection tube.
17. the disposable injection syringe of pre-store medicament as claimed in claim 14 is characterized in that:
This cartridge case also has a socket needle stand, and the cervical region of this container is communicated with the airtight socket of this socket needle stand, and this needle body has of being connected and being communicated with this socket needle stand and fastens end, and passes a cutting tip of the preceding open end of this injection tube.
18. the disposable injection syringe of pre-store medicament as claimed in claim 14 is characterized in that:
This injection tube also has an airtight cover, hermetic closed this needle body of this airtight cover, and have cover should a first end of container neck reaches a second end of planting airtightly for this needle body cutting tip.
19. the disposable injection syringe of pre-store medicament as claimed in claim 1 is characterized in that:
This injection tube also has contiguous this forward open end and to the ring rib that this rear open end is extended, is reserved with a little gap between this ring rib and this ring seat as start-up space, makes this ring seat be hampered by this ring rib immediately after startup and can't be to this forward open end direction displacement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101863022A CN101433742B (en) | 2007-11-12 | 2007-11-12 | Disposable injection syringe with pre-store medicament |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101863022A CN101433742B (en) | 2007-11-12 | 2007-11-12 | Disposable injection syringe with pre-store medicament |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101433742A CN101433742A (en) | 2009-05-20 |
| CN101433742B true CN101433742B (en) | 2011-04-27 |
Family
ID=40708475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101863022A Expired - Fee Related CN101433742B (en) | 2007-11-12 | 2007-11-12 | Disposable injection syringe with pre-store medicament |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101433742B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113368343B (en) * | 2021-05-26 | 2022-06-10 | 宁波易舒医疗科技有限公司 | Thrust mechanism, automatic injection device applying same and use method thereof |
| CN113368344B (en) * | 2021-05-26 | 2022-07-15 | 宁波易舒医疗科技有限公司 | Axial driving mechanism, automatic injection device and using method thereof |
Citations (9)
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| US4935016A (en) * | 1988-02-17 | 1990-06-19 | Deleo John | Syringe |
| WO1993000949A1 (en) * | 1991-07-02 | 1993-01-21 | Ivalda Spa | Single-shot disposable syringe |
| US5562626A (en) * | 1995-09-11 | 1996-10-08 | Sanpietro; Joseph A. | Safety syringe |
| WO1997006841A1 (en) * | 1995-08-14 | 1997-02-27 | Vista Medical Innovations, Incorporated | Protractable and retractable hypodermic needle syringe |
| CN1147770A (en) * | 1994-05-10 | 1997-04-16 | 安杰拉·穆塞塔 | Disposable safety syringe |
| CN1199344A (en) * | 1995-08-22 | 1998-11-18 | Mdc投资控股公司 | Pre-filled retractable needle injection ampoules |
| CN1244811A (en) * | 1996-11-15 | 2000-02-16 | 阿登文泰克公司 | Syringe with retractable needle assembly |
| CN1378467A (en) * | 1999-10-07 | 2002-11-06 | 圣诺菲-合成实验室公司 | Single-use injection device |
| CN1421248A (en) * | 2001-11-28 | 2003-06-04 | 萨克哈拉姆D.马赫卡 | Disposible safety syringe with improved retractable needle |
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2007
- 2007-11-12 CN CN2007101863022A patent/CN101433742B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4935016A (en) * | 1988-02-17 | 1990-06-19 | Deleo John | Syringe |
| WO1993000949A1 (en) * | 1991-07-02 | 1993-01-21 | Ivalda Spa | Single-shot disposable syringe |
| CN1147770A (en) * | 1994-05-10 | 1997-04-16 | 安杰拉·穆塞塔 | Disposable safety syringe |
| WO1997006841A1 (en) * | 1995-08-14 | 1997-02-27 | Vista Medical Innovations, Incorporated | Protractable and retractable hypodermic needle syringe |
| CN1199344A (en) * | 1995-08-22 | 1998-11-18 | Mdc投资控股公司 | Pre-filled retractable needle injection ampoules |
| US5562626A (en) * | 1995-09-11 | 1996-10-08 | Sanpietro; Joseph A. | Safety syringe |
| CN1244811A (en) * | 1996-11-15 | 2000-02-16 | 阿登文泰克公司 | Syringe with retractable needle assembly |
| CN1378467A (en) * | 1999-10-07 | 2002-11-06 | 圣诺菲-合成实验室公司 | Single-use injection device |
| CN1421248A (en) * | 2001-11-28 | 2003-06-04 | 萨克哈拉姆D.马赫卡 | Disposible safety syringe with improved retractable needle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101433742A (en) | 2009-05-20 |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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Granted publication date: 20110427 Termination date: 20191112 |