CN2933434Y - Syringe without needle - Google Patents
Syringe without needle Download PDFInfo
- Publication number
- CN2933434Y CN2933434Y CN 200620105022 CN200620105022U CN2933434Y CN 2933434 Y CN2933434 Y CN 2933434Y CN 200620105022 CN200620105022 CN 200620105022 CN 200620105022 U CN200620105022 U CN 200620105022U CN 2933434 Y CN2933434 Y CN 2933434Y
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- China
- Prior art keywords
- injector
- cavity
- piston
- shell
- sliding tray
- 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.)
- Expired - Lifetime
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- 238000002347 injection Methods 0.000 claims abstract description 62
- 239000007924 injection Substances 0.000 claims abstract description 62
- 230000033001 locomotion Effects 0.000 claims description 20
- 230000008676 import Effects 0.000 claims description 14
- 230000004888 barrier function Effects 0.000 claims description 13
- 208000031481 Pathologic Constriction Diseases 0.000 claims description 9
- 210000001215 vagina Anatomy 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 6
- 239000003814 drug Substances 0.000 abstract description 11
- 229940079593 drug Drugs 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000007920 subcutaneous administration Methods 0.000 description 2
- 208000035473 Communicable disease Diseases 0.000 description 1
- 206010067868 Skin mass Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000005541 medical transmission Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 206010033675 panniculitis Diseases 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
- 210000004304 subcutaneous tissue Anatomy 0.000 description 1
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses a needle-free injector, belonging to a hypodermic administer drug device technical field. The utility model comprises an injection tube and a pushed injector. The injection tube includes a tube body which is equipped with a front-end sealed and back-end opened chamber with an injection head in the front end, and the front wall of the chamber is provided with a injection hole which is communicated with the injection head, and the chamber is equipped with a front-end seal ring and a push-and-pull rod of a piston. The pushed injector includes a casing with a cavity the back-end of which is equipped with a power arrangement the front-end of which is equipped with a piston element which comprises a piston rod and a piston body in the front-end the piston rod with a trigger device. The front-end wall of the chamber isn't equipped with less than three sliding tanks, and the places corresponding to the sliding tanks are equipped with the sliding bars on the periphery of the piston body. The injection tube is movably connected with the pushed injector. The utility model has the advantages of a simple structure, a low productive cost, a good usability and a long durability.
Description
Technical field
The utility model discloses a kind of needleless injector, belong to subcutaneous administration device technique field in the medical device.
Background technology
Injection for curing is widely used at the mankind's medical field, but traditional needle injection that has exists the problem that some can't be avoided.Infectious disease transmission, syringe needle infect such as easily causing, the incorrect processing of filthy syringe needle, needle sharing injection, pain, pin probably, and long term injections produces subcutaneous nodule etc.Therefore from 1866, French scientist was attempted the needleless technology first.But early stage needleless injector does not form real commerce and uses owing to design and make.After nineteen ninety, needleless injector just really moves to maturity.Needleless injector produces the subcutaneous tissue that high-speed jet directly enters into the people by the powered medicine.
The needleless injector of a standard is made up of two parts usually: is used for sucking medicine, splendid attire medicine and launches the injection tube of medicine, and the power set that can produce thrust when triggering.But existing needleless injector complex structure, manufacturing cost height, usability is not good and service life is short.
The utility model content
For overcoming the shortcoming that above-mentioned prior art exists, this utility model provides a kind of needleless injector of simple in structure, easy to use and long service life.
For achieving the above object, the technical scheme that this utility model adopted is: a kind of needleless injector comprises injection tube and injector; Injection tube comprises that front end has the cylindrical shell of injection head, be provided with the chamber of front end sealing, open rearward end in the cylindrical shell, at least be provided with a spray-hole on the ante-chamber wall of chamber, and spray-hole is communicated with the interior push-pull bar that is provided with front end band sealing ring and piston that cooperates of chamber with injection head; Injector comprises the shell that has cavity, the cavity rear end is provided with the power set of band flip flop equipment, the front end of power set is provided with piston component, piston component is made up of piston rod and the piston body that is positioned at the piston rod front end, described cavity front bulkhead is provided with and is no less than 3 sliding tray, on the periphery of piston body, the position of corresponding sliding tray is provided with slider bar; It between described injection tube and the injector movable connection.
Preferred as such scheme, the front end side wall of described cylindrical shell is provided with the joint stricture of vagina; Described injection tube also comprises adaptor, and adaptor is made up of entry needle and the needle stand that is installed in the entry needle lower end and has a female thread that can be connected with the joint stricture of vagina.When being provided with of joint stricture of vagina can solve injection head because of excessive entry needle that can't the general size of socket, can get it filled with the mode of adaptor.
Described spray-hole is two, and axial parallel, is uniformly distributed in the injection head both sides; Perhaps be three, and be axial parallel, radially become equilateral triangle to distribute; Perhaps be four, and be axial parallel, radially quadrate distribution.The increase of spray-hole quantity can be got it filled and administration faster, simultaneously can increase injected dose, the quantity that increases spray-hole in addition like this has been equivalent to increase the jet of same speed, dispergated multiple jets helps the medicine absorption in vivo more, and sensation that is produced on human body skin and sub-thread jet are about the same, and be painless substantially.
The axial slices of described spray-hole is shaped as parallel type or one of shrinkage type or scaling type.According to hydromechanical principle, fluid can cause energy loss when flowing into the injection micropore from big caliber chamber.With respect to the spray-hole of parallel type, the spray-hole energy loss of shrinkage type is smaller, thereby flow velocity also can be soon.But the spray-hole of parallel type or shrinkage type no matter, when pressure was enough big, its muzzle velocity can not surpass the velocity of sound, and the spray-hole of scaling type, its fluid issuing speed just can surpass the velocity of sound.
Described sliding tray is to be combined to form by several lamellar slide masses that are installed on the cavity front bulkhead, and the lamellar slide mass end of sliding tray import department is the inclination angle; The lamellar slide mass end of the corresponding sliding tray of the guide end of slider bar import department also is the inclination angle.
Described power set comprise spring base and spring, and spring base is made up of screwed base on the periphery and the cylinder that is fixedly arranged on the base; Spring is fixedly arranged on the cylinder; The position of corresponding whorl of base also is provided with screw thread on the cavity wall; Described cavity is interior, the end of sliding tray is installed with and stops circle, and stops that the periphery of circle is provided with the corresponding sulculus of size, number and slider bar.
Described flip flop equipment comprises the single pole that is arranged on the shell, and single pole one end is installed with the return spring that is connected with shell, and the other end is installed with barrier sheet, and barrier sheet passes shell and communicates with cavity, and barrier sheet is positioned at sliding tray import department; The end that single pole is installed with return spring is provided with locking mechanism, and locking mechanism comprises that two flexibly connect and the connecting rod and the motion bar of belt length strip groove mutually, and motion bar is provided with two bearing pins that can move with the strip groove fit respectively.
Described injector also comprises spring reverse motion, and spring reverse motion comprises casing and the pusher head that is installed on the piston body front bulkhead; Be installed with band in the casing and push the nut of screw mandrel and the bevel gear with axes at right angles that is meshed with nut; Cabinet exterior is provided with handwheel, and handwheel links by drive link and bevel gear with axes at right angles; On the inwall of casing bottom and nut below is equipped with the stop bit device; The front end that pushes screw mandrel is provided with the propelling movement head, and the rear end is provided with stop block; Be evenly distributed with several triangle tangent plane grooves on the periphery of pusher head; Push on the periphery of head, the position of corresponding triangle tangent plane groove is provided with triangle body, triangle body and triangle tangent plane groove are coupled.
Be installed with tapped union joint on the front bulkhead of described shell, union joint communicates with cavity; The rear end sidewall of described cylindrical shell is provided with and the union joint female thread belled external screw thread that is connected that matches.
The front end side wall of described shell is provided with external screw thread; The rear end sidewall of described cylindrical shell is provided with the connection external screw thread; Be provided with tapped adapter sleeve between described injection tube and the injector.
This utility model needleless injector is simple in structure, low cost of manufacture, serviceability is good and long service life.Movable easy to connect, simple between injection tube and the injector; In the injector sliding tray and slider bar be equipped with the stability that has improved motive force, near and prolonged service life; Being provided with of the joint stricture of vagina of injection tube and spray-hole improved whole serviceability.Below in conjunction with the drawings and specific embodiments this utility model is described in further detail.
Fig. 1 is the structural representation of this utility model specific embodiment needleless injector;
Fig. 2 is the structural representation of injection tube among Fig. 1;
Fig. 3 is the structural representation of injection tube front end axial slices shrinkage type spray-hole;
Fig. 4 is the axial slices structural representation of parallel type spray-hole;
Fig. 5 is the axial slices structural representation of scaling type spray-hole;
Fig. 6 is the vertical view with the injection tube of two spray-holes;
Fig. 7 is the vertical view with the injection tube of three spray-holes;
Fig. 8 is the vertical view with the injection tube of four spray-holes;
Structural representation when Fig. 9 gets it filled for socket entry needle on the injection head;
Figure 10 is the structural representation of adaptor;
Figure 11 is the structural representation of injector among Fig. 1;
Figure 12 is the perspective view of piston component;
Figure 13 is the structural representation of facing of Figure 12;
Figure 14 is the right view of Figure 13;
Figure 15 is the perspective view of slider bar;
Figure 16 is the structural representation of facing of Figure 15;
Figure 17 is the schematic top plan view of Figure 16;
Figure 18 is the perspective view of pusher head;
Figure 19 is the structural representation of facing of Figure 18;
Figure 20 looks sketch map for the right side of Figure 19;
Figure 21 is pusher head and the coupled structure sketch map that pushes head;
Figure 22 is the expansion floor map that is installed in several lamellar slide mass combinations on the cavity front bulkhead;
Figure 23 is the work structuring sketch map of Figure 22, and has shown slider bar and the barrier sheet structure under being in the lock state;
Figure 24 is the perspective view that stops circle;
Figure 25 is the structural representation of facing of Figure 24;
Figure 26 is in structural representation under the opening for locking mechanism;
Figure 27 is in structural representation under the closed condition for locking mechanism;
Figure 28 is spring reverse motion and the bonded structural representation of injector;
Figure 29 is that injection tube was in the structural representation of injecting when finishing after the flip flop equipment of Fig. 1 was opened;
Figure 30 pushes back to the structural representation that original position is blocked for the propelling movement screw mandrel of the spring reverse motion after injecting with piston body;
Structural representation when Figure 31 constitutes needleless injector for injection tube and injector by adapter sleeve.
Specific embodiment
As shown in Figure 1, the needleless injector of this utility model specific embodiment comprises injection tube 1 and injector 2, is movable connection between injection tube 1 and the injector 2.Movable connection between injection tube 1 and the injector 2 can be adopted following dual mode.First kind as shown in Figure 1, and injection tube 1 is connected by the tapped union joint 36 on shell 17 front bulkheads of the connection external screw thread 12 on its cylindrical shell 4 rear end sidewalls and injector 2.Second kind as shown in figure 31, and injection tube 1 is connected by tapped adapter sleeve 51 with injector 2: be provided with external screw thread 53 on injector 2 shells 17 front end side wall; Adapter sleeve 51 1 ends are connected with external screw thread 53 on injector 2 shells 17 front end side wall, and the other end connects with the external screw thread 12 that is connected on the injection tube 1 cylindrical shell 4 rear end sidewalls, and just injection tube 1 and injector 2 can be connected into complete needleless injector.
As shown in Figure 2, injection tube 1 comprises that front end has the cylindrical shell 4 of injection head 3, be provided with the chamber 5 of front end sealing, open rearward end in the cylindrical shell 4, at least be provided with a spray-hole 7 on the ante-chamber wall 6 of chamber 5, and spray-hole 7 is communicated with injection head 3, cooperates the push-pull bar 10 that is provided with front end band sealing ring 8 and piston 9 in the chamber 5.The front end side wall of cylindrical shell 4 is provided with joint stricture of vagina 11, and the rear end sidewall of cylindrical shell 4 is provided with and connects external screw thread 12.
Shown in Fig. 3,4,5, the axial slices shape of spray-hole 7 can be respectively shrinkage type, parallel type, scaling type.
As shown in Figure 6, spray-hole 7 can be two, and axial parallel, is uniformly distributed in injection head 3 both sides.
As shown in Figure 7, spray-hole 7 can be three, and is axial parallel, radially becomes equilateral triangle to distribute.
As shown in Figure 8, spray-hole 7 can be four, and is axial parallel, radially quadrate distribution.
As shown in Figure 9, when the size of injection head 3 is stock size, entry needle 14 that can directly socket is general on injection head 3.When getting it filled, the backshank of entry needle 14 is socketed on the injection head 3, needle point inserts medicine bottle 49, pulling push-pull bar 10, and medicament will be inhaled in the chamber 5 by spray-hole 7.
As shown in figure 10, injection tube 1 also comprises adaptor 13, and adaptor 13 is made up of entry needle 14 and the needle stand 15 that is installed in entry needle 14 lower ends and has a female thread that can be connected with joint stricture of vagina 11.During and entry needle 14 that can't socket general size bigger than normal, adaptor 13 covers can be received on the joint stricture of vagina 11 on cylindrical shell 4 front end side wall and get it filled when injection head 3.
As shown in figure 11, injector 2 comprises the shell 17 that has cavity 16, and cavity 16 rear ends are provided with the power set of band flip flop equipment, and the front end of power set is provided with piston component, and piston component is made up of piston rod 18 and the piston body 19 that is positioned at piston rod 18 front ends.Be installed with tapped union joint 36 on the front bulkhead of shell 17, union joint 36 communicates with cavity 16.Cavity 16 front bulkheads are provided with 3 sliding tray 20.Shown in Figure 12,13,14, on the periphery of piston body 19, the position of corresponding every sliding tray 20 is equipped with slider bar 21.Shown in Figure 22,23, sliding tray 20 is to be combined to form by several lamellar slide masses 22 that are installed on cavity 16 front bulkheads, and lamellar slide mass 22 ends of sliding tray 20 import departments are the inclination angle.Lamellar slide mass 22 ends of the corresponding sliding tray of the guide end of slider bar 21 20 import departments also are the inclination angle shown in Figure 15,16,17.Shown in Figure 24,25, cavity 16 ends interior, sliding tray 20 are installed with and stop circle 34, and stop that the periphery of circle 34 is provided with size, number and slider bar 21 corresponding sulculuses 35.
As shown in figure 11, power set comprise spring base 23 and spring 24, and spring base 23 is made up of screwed base 25 on the periphery and the cylinder 26 that is fixedly arranged on the base 25.Spring 24 is fixedly arranged on the cylinder 26; The position of corresponding base 25 screw threads also is provided with screw thread on cavity 16 walls.Cavity 16 ends, promptly base 25 rear ends are sealed with closing cap 52.Flip flop equipment comprises the single pole 27 that is arranged on the shell 17, single pole 27 1 ends are installed with the return spring 28 that is connected with shell 17, the other end is installed with barrier sheet 29, and barrier sheet 29 passes shell 17 and communicates with cavity 16, and barrier sheet 29 is positioned at sliding tray 20 import departments.The end that single pole 27 is installed with return spring 28 also is provided with locking mechanism.Shown in Figure 26,27, locking mechanism comprises the connecting rod 31 and the motion bar 32 of two mutual flexible connections and belt length strip groove 30, and motion bar 32 is provided with two difference can cooperate the bearing pin 33 that moves with strip groove 30.
As shown in figure 28, injector 2 also comprises spring reverse motion, and spring reverse motion comprises casing 37 and the pusher head 38 that is installed on piston body 19 front bulkheads.Be installed with band in the casing 37 and push the nut 40 of screw mandrel 39 and the bevel gear with axes at right angles 41 that is meshed with nut 40.Casing 37 outer walls are provided with handwheel 42, and handwheel 42 links by drive link 43 and bevel gear with axes at right angles 41.On the casing 37 bottom inwalls and nut 40 belows are equipped with stop bit device 44.The front end that pushes screw mandrel 39 is provided with and pushes 45, and the rear end is provided with stop block 46.Shown in Figure 18,19,20, be evenly distributed with several triangle tangent plane grooves 47 on the periphery of pusher head 38.As shown in figure 21, push on 45 the periphery, the position of corresponding triangle tangent plane groove 47 is provided with triangle body 48, triangle body 48 is coupled with triangle tangent plane groove 47.
As shown in Figure 1, when this utility model needleless injector is used, the injection tube 1 of having drawn medicament is connected by the tapped union joint 36 on shell 17 front bulkheads of the connection external screw thread 12 on its cylindrical shell 4 rear end sidewalls and injector 2.And the spring 24 of this moment is in compressive state, and a slider bar 21 on the piston body 19 is blocked sheet 29 retainings in sliding tray 20 import departments.As shown in figure 27, the locking mechanism of this moment is in the lock state, maloperation in the time of can preventing to inject, flip flop equipment under being in the lock state is stiff, be that single pole 27 is stiff, return spring 28 can not be pressed down: motion bar 32 right dialling, mobilizable connecting rod 31 down extends to when propping up shell 17, just is in the lock state.
As shown in figure 26, earlier locking mechanism is opened during injection, be about to motion bar 32 left sides and dial, mobilizable connecting rod 31 just can break away from shell 17.As shown in figure 29, press single pole 27 1 ends that are connected with return spring 28, barrier sheet 29 is lifted.At this moment, because of lamellar slide mass 22 ends of sliding tray 20 import departments are the inclination angle, and lamellar slide mass 22 ends of the corresponding sliding tray of the guide end of slider bar 21 20 import departments also are the inclination angle, therefore the slider bar 21 on the piston body 19 is lifted instantaneous at barrier sheet 29, directly enter sliding tray 20, and need the help of thrust hardly.Piston body 19 is sliding in sliding tray 20 under the thrust of spring 24 fast.When sliding to certain distance, the push-pull bar 10 on the bump injection tube 1 produces high pressure on medicament, and medicament enters subcutaneous by spray-hole 7 high-speed jets of injection tube 1 front end.Piston body 19 finally is blocked circle and 34 blocks under the effect of spring 24: pusher head 38 can directly be passed and be stopped circle 34, encloses 34 the internal diameter external diameter greater than pusher head 38 because of stopping; The part that slider bar 21 guide ends protrude in piston body 19 front bulkheads enters in the sulculus 35 that stops on circle 34 peripheries just; Stop that enclosing 34 selects the rubber material for use, the impulsive force of available buffer piston body 19.After the injection, flip flop equipment returns to the state before the injection under the effect of return spring 28, and promptly barrier sheet 29 stretches into cavity 16 downwards.
Injector 2 should make spring 24 reset before using next time, and the slider bar 21 on the piston body 19 must return to the import department of sliding tray 20.As shown in figure 28, injector 2 is installed on casing 37 upper ends by holder 50.Shown in Figure 28,30, push 45 and enter in the cavity 16, triangle body 48 and triangle tangent plane groove 47 on the pusher head 38 are coupled one by one; Then rotate handwheel 42, by drive link 43 bevel gear with axes at right angles 41 is rotated, thereby driving nut 40 rotates, the rotation of nut 40 has promoted propelling movement screw mandrel 39 advances, and pushes screw mandrel 39 and produces one along the tangential thrust of circumference to pushing 45 again, and piston body 19 falls back simultaneously, run into the stop bit device 44 of nut 40 belows up to stop block 46, handwheel 42 just stops operating, this moment slider bar 21 into lamellar slide mass 22 ends of falling back just, slider bar 21 just is blocked sheet 29 and is stuck in sliding tray 20 import departments.Injector 2 has just been got back to the state before the injection like this.
Resetting of spring reverse motion only needs backward rotation handwheel 42, and the stop bit device of running on the casing 37 bottom inwalls up to stop block 46 44 gets final product.
Claims (10)
1. a needleless injector comprises injection tube (1) and injector (2); Injection tube (1) comprises that front end has the cylindrical shell of injection head (3) (4), be provided with the chamber (5) of front end sealing, open rearward end in the cylindrical shell (4), at least be provided with a spray-hole (7) on the ante-chamber wall (6) of chamber (5), and spray-hole (7) is communicated with injection head (3), cooperates the push-pull bar (10) that is provided with front end band sealing ring (8) and piston (9) in the chamber (5); Injector (2) comprises the shell (17) that has cavity (16), cavity (16) rear end is provided with the power set of band flip flop equipment, the front end of power set is provided with piston component, piston component is made up of piston rod (18) and the piston body (19) that is positioned at piston rod (18) front end, it is characterized in that described cavity (16) front bulkhead is provided with the sliding tray (20) that is no less than 3, on the periphery of piston body (19), the position of corresponding sliding tray (20) is provided with slider bar (21); Between described injection tube (1) and the injector (2) is movable connection.
2. according to the described needleless injector of claim 1, it is characterized in that the front end side wall of described cylindrical shell (4) is provided with joint stricture of vagina (11); Described injection tube (1) also comprises adaptor (13), and adaptor (13) is made up of entry needle (14) and the needle stand (15) that is installed in entry needle (14) lower end and has a female thread that can be connected with joint stricture of vagina (11).
3. according to the described needleless injector of claim 1, it is characterized in that described spray-hole (7) is two, and axial parallel, be uniformly distributed in injection head (3) both sides; Perhaps be three, and be axial parallel, radially become equilateral triangle to distribute; Perhaps be four, and be axial parallel, radially quadrate distribution.
4. according to claim 1 or 3 described needleless injectors, it is characterized in that the axial slices of described spray-hole (7) is shaped as parallel type or one of shrinkage type or scaling type.
5. according to the described needleless injector of claim 1, it is characterized in that described sliding tray (20) is to be combined to form by several lamellar slide masses (22) that are installed on cavity (16) front bulkhead, lamellar slide mass (22) end of sliding tray (20) import department is the inclination angle; Lamellar slide mass (22) end of the corresponding sliding tray (20) of the guide end of slider bar (21) import department also is the inclination angle.
6. according to the described needleless injector of claim 1, it is characterized in that described power set comprise spring base (23) and spring (24), spring base (23) is made up of screwed base (25) on the periphery and the cylinder (26) that is fixedly arranged on the base (25); Spring (24) is fixedly arranged on the cylinder (26); The position of corresponding base (25) screw thread also is provided with screw thread on cavity (16) wall; Described cavity (16) is interior, the end of sliding tray (20) is installed with and stops circle (34), and stops that the periphery of circle (34) is provided with the corresponding sulculus of size, number and slider bar (21) (35).
7. according to the described needleless injector of claim 1, it is characterized in that described flip flop equipment comprises the single pole (27) that is arranged on the shell (17), single pole (27) one ends are installed with the return spring (28) that is connected with shell (17), the other end is installed with barrier sheet (29), barrier sheet (29) passes shell (17) and communicates with cavity (16), and barrier sheet (29) is positioned at sliding tray (20) import department; The end that single pole (27) is installed with return spring (28) is provided with locking mechanism, locking mechanism comprises the connecting rod (31) and the motion bar (32) of two mutual flexible connections and belt length strip groove (30), and motion bar (32) is provided with two difference can cooperate the bearing pin (33) that moves with strip groove (30).
8. according to the described needleless injector of claim 1, it is characterized in that described injector (2) also comprises spring reverse motion, spring reverse motion comprises casing (37) and is installed in pusher head (38) on piston body (19) front bulkhead; Be installed with band in the casing (37) and push the nut (40) of screw mandrel (39) and the bevel gear with axes at right angles (41) that is meshed with nut (40); Casing (37) outer wall is provided with handwheel (42), and handwheel (42) links by drive link (43) and bevel gear with axes at right angles (41); On the inwall of casing (37) bottom and nut (40) below is equipped with stop bit device (44); The front end that pushes screw mandrel (39) is provided with and pushes head (45), and the rear end is provided with stop block (46); Be evenly distributed with several triangle tangent plane grooves (47) on the periphery of pusher head (38); Push on the periphery of head (45), the position of corresponding triangle tangent plane groove (47) is provided with triangle body (48), triangle body (48) is coupled with triangle tangent plane groove (47).
9. according to the described needleless injector of claim 1, it is characterized in that being installed with tapped union joint (36) on the front bulkhead of described shell (17), union joint (36) communicates with cavity (16); The rear end sidewall of described cylindrical shell (4) is provided with and union joint (36) the female thread belled external screw thread (12) that is connected that matches.
10. according to the described needleless injector of claim 1, it is characterized in that the front end side wall of described shell (17) is provided with external screw thread (53); The rear end sidewall of described cylindrical shell (4) is provided with and connects external screw thread (12); Be provided with tapped adapter sleeve (51) between described injection tube (1) and the injector (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620105022 CN2933434Y (en) | 2006-06-22 | 2006-06-22 | Syringe without needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620105022 CN2933434Y (en) | 2006-06-22 | 2006-06-22 | Syringe without needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2933434Y true CN2933434Y (en) | 2007-08-15 |
Family
ID=38350125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620105022 Expired - Lifetime CN2933434Y (en) | 2006-06-22 | 2006-06-22 | Syringe without needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2933434Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103263868A (en) * | 2013-06-07 | 2013-08-28 | 北京东方金荣超声电器有限公司 | Ultrasonic dispersion injection pump |
| CN113116458A (en) * | 2021-04-19 | 2021-07-16 | 郑州大学第一附属医院 | Autonomous high-speed pulse type thrombolysis propelling device |
-
2006
- 2006-06-22 CN CN 200620105022 patent/CN2933434Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103263868A (en) * | 2013-06-07 | 2013-08-28 | 北京东方金荣超声电器有限公司 | Ultrasonic dispersion injection pump |
| CN113116458A (en) * | 2021-04-19 | 2021-07-16 | 郑州大学第一附属医院 | Autonomous high-speed pulse type thrombolysis propelling device |
| CN113116458B (en) * | 2021-04-19 | 2022-03-01 | 郑州大学第一附属医院 | Autonomous high-speed pulse type thrombolysis propelling device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HENAN SHUGUANG MEDICAL EQUIPMENT CO., LTD. Free format text: FORMER OWNER: CHEN KAI Effective date: 20111027 |
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Free format text: CORRECT: ADDRESS; FROM: 312000 SHAOXING, ZHEJIANG PROVINCE TO: 462000 LUOHE, HENAN PROVINCE |
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Effective date of registration: 20111027 Address after: The coastal city of Luohe City, Henan Province, Yuanhui District Xiangjiang road 462000 Patentee after: Henan Shuguang Jianshi Medical Equipment Group Co., Ltd. Address before: 102 room 11, pearl garden, Yue Yue District, Zhejiang, Shaoxing, 312000 Patentee before: Chen Kai |
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Address after: Luohe City, Henan province 462000 Yuanhui District Riverside Metro Xiangjiang Road Patentee after: Henan Shugang Jianshi Medical Devices Group Co., Ltd. Address before: The coastal city of Luohe City, Henan Province, Yuanhui District Xiangjiang road 462000 Patentee before: Henan Shuguang Jianshi Medical Equipment Group Co., Ltd. |
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Granted publication date: 20070815 |
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