CN2936287Y - Injector - Google Patents
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- CN2936287Y CN2936287Y CN 200620119050 CN200620119050U CN2936287Y CN 2936287 Y CN2936287 Y CN 2936287Y CN 200620119050 CN200620119050 CN 200620119050 CN 200620119050 U CN200620119050 U CN 200620119050U CN 2936287 Y CN2936287 Y CN 2936287Y
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- check valve
- self
- valve
- bonnet
- rod
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Abstract
The utility model relates to self-disposable syringe, which comprises a syringe (2) and an injection pusher (4). The utility model is characterized in that: An effective one-way valve (9) is positioned at the most inner end of the syringe (2) so as to match the inner wall of the syringe (2). The circular protruding shoulder on the inner wall of the self-disposable syringe manufactured according to the utility model is eliminated, and users will not feel pushing obstacle during the process of injecting drug liquid. Discomfort will also be reduced for people who receive the injection. The simplification of the structure makes effective batch production and low manufacture cost possible.
Description
Technical field
This utility model relates to a kind of syringe, particularly relates to a kind of self-destruction syringe.More particularly, this utility model relates to the self-destruction syringe that a kind of injection tube inwall omits any stopping mechanism, makes that the structure of syringe is simpler, operation is more smooth and easy, manufacturing is more convenient, cost is cheaper.
Background technology
China utility model patent ZL98246224.7 discloses a kind of re-use preventing once-used syringe, it comprises injection tube and injection rod, wherein, the inner surface of the front end of injection tube is provided with an annular convex shoulder, and this annular convex shoulder has rectangular cross section and perpendicular to the inwall of injection tube; The bar head rear end of injection rod is provided with some transverse elasticity fins, and the bar head of injection rod is connected by the thin neck of breaking easily with the body of rod.The bar head of the injection rod of new syringe is positioned at the downstream of described annular convex shoulder, can freely be pulled rearward moving to extract medicinal liquid; When liquid medicine injection, the bar head of injection rod is crossed the upstream that described annular convex shoulder arrives described annular convex shoulder; When attempting to pull back injection rod with the extraction medicinal liquid once more, some transverse elasticity fins of the bar head rear end of injection rod are blocked by described annular convex shoulder; If attempt to continue to pull back injection rod to extract medicinal liquid, the bar head of injection rod and the thin neck between the body of rod are just broken, thereby reach the effect of self-destruction.
Yet because the existence of annular convex shoulder, in the liquid medicine injection process, user can be felt the propelling obstacle of injection rod more or less, and therefore the medicinal liquid person of benefiting from also feels pain through regular meeting.In addition, the existence of this annular convex shoulder also makes the manufacturing process difference of syringe and the waste of material.
Chinese patent ZL97193570.X examines the above-mentioned latent defect of having filtered this class syringe, and optimized technical scheme is: annular convex shoulder has leg-of-mutton cross section, and is skewed with respect to the inwall of injection tube.
Yet production practices show that according to Chinese patent ZL97193570.X, the manufacturing process complexity of corresponding product, the accuracy of manufacture are difficult to guarantee that the annular convex shoulder that often occurs described inclination does not in use play the phenomenon of retaining effect.
Particularly; this Chinese patent ZL97193570.X does not still overcome the above-mentioned latent defect of this class syringe, that is: because the existence of annular convex shoulder, in the liquid medicine injection process; user can be felt the propelling obstacle of injection rod more or less, and therefore the medicinal liquid person of benefiting from also feels pain through regular meeting.
The utility model content
The purpose of this utility model provides a kind of self-destruction syringe, and it can be guaranteed and can only normally use once swimmingly and can't be used for the second time.
Another purpose of the present utility model provides a kind of self-destruction syringe, and its structure is simpler.
Another purpose of the present utility model provides a kind of self-destruction syringe, and its operation is more smooth and easy.
Another purpose of the present utility model provides a kind of self-destruction syringe, and its manufacturing is more convenient.
Another purpose of the present utility model provides a kind of self-destruction syringe, and its cost is cheaper.
In order to achieve the above object, according to an aspect of the present utility model, provide a kind of self-destruction syringe, it comprises injection tube and injection rod, it is characterized in that the inner end of the injection rod stroke in injection tube is provided with the disposable effective check valve that matches with the inwall of this injection tube.
Particularly, this check valve comprises valve body, bonnet and valve rod, and the valve body of check valve is provided with medicine liquid channel and the bonnet seat with centre bore along its central axis, and the bonnet seat is provided with several radial slots; Bonnet is provided with the hole, and this hole is aimed at the medicine liquid channel of the valve body of check valve; The valve rod of check valve comprises head and guide part, and the length of guide part is substantially equal to the length of the medicine liquid channel of check valve valve body, and the trans D of head is slightly larger than the size in the hole of bonnet, and the diameter of guide part is slightly less than the diameter of medicine liquid channel.
Particularly, the end towards injection rod of this check valve is provided with recess.
Particularly, the head of the valve rod of this check valve is cydariform, discus shape, taper type or sphere.
Particularly, the diapire of bonnet is taper shape or arch.
Particularly, in bonnet and the valve rod one of them is made by elastomeric material at least.
Preferably, one of them in bonnet and the valve rod made by elastomeric material, and another one is made by hard material.
According to another one of the present utility model aspect, a kind of self-destruction syringe is provided, its check valve comprises valve body and valve rod, the valve body of check valve is provided with medicine liquid channel along its central axis, the space of the head of the valve rod that holds check valve is set in the valve body of check valve, and radial slot is set directly on this spatial shoulder.
Particularly, in bonnet and the valve rod one of them is made by elastomeric material at least.
Preferably, one of them in bonnet and the valve rod made by elastomeric material, and another one is made by hard material.
According to another one of the present utility model aspect, a kind of self-destruction syringe is provided, its check valve comprises valve body and valve rod, the valve body of check valve is provided with medicine liquid channel along its central axis, the guide part of the valve rod of check valve matches with the inwall of bonnet, and vertical hole that several pass through for medicinal liquids is set on the guide part of the valve rod of check valve.
Preferably, the part of the guide part of the valve rod of check valve matches with the inwall of bonnet.
Particularly, in bonnet and the valve rod one of them is made by elastomeric material at least.
Preferably, one of them in bonnet and the valve rod made by elastomeric material, and another one is made by hard material.
According to another one of the present utility model aspect, a kind of self-destruction syringe is provided, its check valve comprises sidewall and diapire, and this diapire is to the inner recess of check valve, and this diapire is provided with an otch along the diameter setting.
According to injection tube of the present utility model,, can guarantee and normally to use once swimmingly and can't be used for the second time owing to be provided with disposable effective check valve.
According to injection tube of the present utility model,, make user in the liquid medicine injection process, can not feel the propelling obstacle of injection rod owing on its inwall any stopping mechanism can be set.The medicinal liquid person of benefiting from also can reduce uncomfortable sensation.The simplification of structure also makes can produce, reduce manufacturing cost expeditiously in batches.
According to injection tube of the present utility model,, make that the structure of syringe is simpler, operation is more smooth and easy, manufacturing is more convenient, cost is cheaper because the inwall of injection tube has omitted any stopping mechanism.
Description of drawings
Fig. 1 is according to the schematic section of self-destruction syringe of the present utility model at unused state or suction medicine state;
Fig. 2 is according to the schematic section of self-destruction syringe of the present utility model in exhaust condition or inject state;
Fig. 3 is at the schematic section of attempting to inhale once more the medicine state according to self-destruction syringe of the present utility model;
Fig. 4 is the signal longitdinal cross-section diagram according to the check valve valve body of the self-destruction syringe of an embodiment of this utility model;
Fig. 5 is the diagrammatic top view of the check valve valve body of self-destruction syringe as shown in Figure 4;
Fig. 6 is the signal longitdinal cross-section diagram of the one-way seals that is used of the check valve valve body with as shown in Figure 4 self-destruction syringe;
Fig. 7 is the sketch map of the valve rod that is used of a check valve valve body embodiment according to this utility model and self-destruction syringe as shown in Figure 4;
Fig. 8 is the sketch map of the valve rod that is used of check valve valve body embodiment according to this utility model another one and self-destruction syringe as shown in Figure 4;
Fig. 9 is the sketch map of the valve rod that is used of check valve valve body embodiment according to this utility model another one and self-destruction syringe as shown in Figure 4;
Figure 10 is the sketch map of the valve rod that is used of check valve valve body embodiment according to this utility model another one and self-destruction syringe as shown in Figure 4;
Figure 11 is the assembling sketch map according to the check valve of the self-destruction syringe of an embodiment of this utility model;
Figure 12 is the assembling sketch map according to the check valve of the self-destruction syringe of this utility model another one embodiment;
Figure 13 is the assembling sketch map according to the check valve of the self-destruction syringe of this utility model another one embodiment;
Figure 14 is the assembling sketch map according to check valve state before injection of the self-destruction syringe of an improvement embodiment of the present utility model;
Figure 15 is the assembling sketch map of the check valve of self-destruction syringe as shown in figure 14 in inject state;
Figure 16 is the assembling sketch map of check valve state after injection of self-destruction syringe as shown in figure 14;
Figure 17 is the assembling sketch map according to check valve state before injection of the self-destruction syringe of another one embodiment of the present utility model;
Figure 18 is the assembling sketch map according to check valve state before injection of the self-destruction syringe of another one embodiment of the present utility model;
Figure 19 is the assembling sketch map according to check valve state before injection of the self-destruction syringe of another one embodiment of the present utility model;
Figure 20 a is according to the check valve of the self-destruction syringe of this utility model another one embodiment schematic diagram at unused state;
Figure 20 b is the schematic section that the check valve of the self-destruction syringe shown in Figure 20 a dissects along the A-A line;
The schematic section that the check valve of the self-destruction syringe of Figure 20 c shown in Figure 20 a dissects along the B-B line;
Figure 21 a is the schematic diagram of the check valve of the self-destruction syringe shown in Figure 20 a at suction medicine state;
Figure 21 b is the schematic section that the check valve of the self-destruction syringe shown in Figure 21 a dissects along the A-A line;
The schematic section that the check valve of the self-destruction syringe of Figure 21 c shown in Figure 21 a dissects along the B-B line;
Figure 22 a is the schematic diagram of the check valve of the self-destruction syringe shown in Figure 20 a in aerofluxus or inject state;
Figure 22 b is the schematic section that the check valve of the self-destruction syringe shown in Figure 22 a dissects along the A-A line;
The schematic section that the check valve of the self-destruction syringe of Figure 22 c shown in Figure 22 a dissects along the B-B line;
Figure 23 a is that the check valve of the self-destruction syringe shown in Figure 20 a is at the schematic diagram of attempting to inhale once more the medicine state;
Figure 23 b is the schematic section that the check valve of the self-destruction syringe shown in Figure 23 a dissects along the A-A line;
The schematic section that the check valve of the self-destruction syringe of Figure 23 c shown in Figure 23 a dissects along the B-B line.
The specific embodiment
At first, according to the operation principle of Fig. 1 to Fig. 3 explanation according to self-destruction syringe of the present utility model.For convenience of description, in description, a side close with conehead 1 is called as the upstream, with conehead 1 away from a side be called as the downstream.
As shown in Figure 1, mainly comprise injection tube (sleeve pipe) 2, conehead 1, injection tube crimping 3, injection rod 4, press hands 5, piston component 8, check valve 9 and breakaway poing 10 according to self-destruction syringe of the present utility model.
Check valve 9 is arranged on the upstream in the injection tube 2, matches with the inside of this injection tube 2.
As shown in Figure 1, when attempting to inhale medicine, operator (for example nurse) spur downstream according to self-destruction syringe of the present utility model press hands 5, make the volume in space 11 of piston component 8 upstream sides become big, thereby medicinal liquid is inhaled into the upstream side of piston component 8 by check valve 9.
Fig. 2 shows according to the aerofluxus of self-destruction syringe of the present utility model and inject state.Understand easily, do not allow air is injected in the medicinal liquid person of benefiting from (as the patient's) the health with medicinal liquid, otherwise healthy unfavorable to the medicinal liquid person of benefiting from, even be in peril of one's life.
As shown in Figure 2, hands 5 is pressed in operator (for example nurse) thruster upstream, is all discharged until the air of piston component 8 upstream sides.
Then, by according to the self-destruction syringe that has the syringe needle (not shown) of the present utility model, operator (for example nurse) can carry out safety injection to the medicinal liquid person of benefiting from (as the patient).At this moment, the valve rod of check valve exposes check valve 9.As shown in Figure 2, operator (for example nurse) continues thruster upstream reposefully and presses hands 5, until the upstream side of piston component 8 till the check valve 9.
According to self-destruction syringe of the present utility model, if attempt to inhale once more medicine, as shown in Figure 3, operator (for example nurse) layback downstream presses hands 5.Move downstream along with pressing hands 5, injection rod 4, breakaway poing 10 and piston component 8 also move downstream with pressing hands 5, form vacuum in the space 11 of piston component 8 upstream sides.The valve rod that has exposed check valve 9 will stop up the feeding opening of check valve 9, make check valve 9 can't carry medicinal liquid once more in injection tube 2.Press hands 5 if continue to attempt downstream layback, will be broken at breakaway poing 10 places between injection rod 4 and the piston component 8.
Below, the various specific embodiments according to the check valve of self-destruction syringe of the present utility model are described.
Fig. 4 and Fig. 5 show an embodiment according to the check valve valve body of self-destruction syringe of the present utility model.As shown in Figure 4, check valve valve body 91 is cylindrical on the whole, is provided with medicine liquid channel 20 along central axis.On the top of Fig. 4, promptly the updrift side towards conehead 1 of check valve 9 is provided with bonnet seat 21.Bonnet seat 21 is provided with conical hole 22 along central axis.Between the outside of bonnet seat 21 and valve body wall 24, be provided with cannelure 23.Bonnet seat 21 is provided with several radial slots 25.In the bottom of Fig. 4, promptly the downstream direction back to conehead 1 of check valve 9 is provided with recess 26.
Fig. 6 shows the cross-sectional view according to the bonnet (one-way seals) 92 of an embodiment of the check valve valve body of self-destruction syringe of the present utility model.As shown in Figure 6, bonnet 92 has sidewall 30 and diapire 31.The center of the diapire 31 of bonnet 92 is provided with hole 32.Under the confined state of check valve 9, the sidewall 30 of bonnet 92 inserts the cannelure 23 of valve body 91, and hole 32 is aimed at the medicine liquid channel 20 of check valve valve body 91.
Fig. 7 to Figure 10 shows the structural representation according to the check valve valve rod of self-destruction syringe of the present utility model.As shown in Figure 7, the valve rod 93 of check valve comprises head 40 and guide part 41.Guide part 41 has lead angle 42.The length of guide part 41 is substantially equal to the length of the medicine liquid channel 20 of check valve valve body 91.The diameter of guide part 41 is slightly less than the diameter of medicine liquid channel 20.The head 40 of check valve valve rod 93 as shown in Figure 7 is cydariform.The center that the trans D of head 40 is slightly larger than the diapire 31 of bonnet 92 is provided with hole 32.
In other embodiment, as shown in Figure 8, the head 40 of the valve rod 93 of check valve can be discus shape.As shown in Figure 9, the head 40 of the valve rod 93 of check valve can be taper type.As shown in figure 10, the head 40 of the valve rod 93 of check valve also can be spherical in shape.The head 40 of the valve rod 93 of check valve also can be any diapire 31 that is suitable for passing easily bonnet 92 the center hole 32 and be difficult to 32 shapes of returning from this hole.
Figure 11 shows the assembling sketch map of check valve 9 under suction medicine state according to the self-destruction syringe of an embodiment of this utility model.As shown in figure 11, the head 40 of check valve valve rod 93 is seated on the bonnet seat 21.Medicinal liquid can be via the annular space 100 between the guide part 41 of the hole 32 at the center of the diapire 31 of bonnet 92, the medicine liquid channel 20 of cannelure 23, check valve valve body 91 on the bonnet seat 21 and check valve valve rod 93 and is entered the recess 26 of check valve valve body 91, and then enters in the injection tube 2.
Figure 12 shows the assembling sketch map of check valve 9 under suction medicine state according to the self-destruction syringe of this utility model another one embodiment.As shown in figure 12, bonnet 92 is reduced to planar annulus, and bonnet seat 21 is triangular in shape.Other structures and operation principle are identical with as shown in figure 11 embodiment, no longer repeatedly describe.
Figure 13 shows the assembling sketch map of check valve 9 under suction medicine state according to the self-destruction syringe of this utility model another one embodiment.As shown in figure 13, bonnet 92 is reduced to planar annulus, the bonnet seat is not set, and radial slot 25 is set directly on the shoulder in hole 20.Other structures and operation principle are identical with as shown in figure 11 embodiment, no longer repeatedly describe.
Figure 14 shows the assembling sketch map of check valve 9 under suction medicine state according to the self-destruction syringe of this utility model another one embodiment.As shown in figure 14, the diapire 31 of bonnet 92 is arranged to taper shape or arch, can increase the longitudinal rigidity of bonnet 92 32 axis directions along the hole like this, more helps improving the reliability that the head 40 that stops valve rod 93 returns initial position.
Figure 15 shows the assembling sketch map of embodiment under inject state as shown in figure 14.As shown in figure 15, medicinal liquid can be via the annular space 101 between the guide part 41 of the centre bore 32 of the diapire 31 of the annular space 100 between the guide part 41 of the medicine liquid channel 20 of the medicine liquid channel 20 of the recess 26 of check valve valve body 91, check valve valve body 91, check valve valve body 91 and check valve valve rod 93, bellmouth 22 on the bonnet seat 21 and radial slot 25, bonnet 92 and check valve valve rod 93 and is entered conehead 1, and then enters in the medicinal liquid person of benefiting from (as the patient) body.
Figure 16 shows as shown in figure 14 embodiment at the assembling sketch map of attempting to inhale once more under the medicine state.As shown in figure 16, at the head 40 of check valve valve rod 93 and 102 places, contact site of bonnet 92, annular space 101 between the centre bore 32 of the diapire 31 of bonnet 92 and the guide part 41 of check valve valve rod 93 is caused check valve 9 can not medicinal liquid be passed through by the lower surface shutoff of the head 40 of the valve rod 93 of check valve.
Figure 17 shows the assembling sketch map of check valve 9 under suction medicine state according to the self-destruction syringe of this utility model another one embodiment.As shown in figure 17, bonnet 92 is omitted, and the space 105 of the head 40 that holds check valve valve rod 93 is set in the check valve valve body 91, and radial slot 106 is set directly on the shoulder in the hole 20 in the space 105.Other structures and operation principle are identical with as shown in figure 11 embodiment, no longer repeatedly describe.
Figure 18 shows the assembling sketch map of check valve 9 under suction medicine state according to the self-destruction syringe of this utility model another one embodiment.As shown in figure 18, check valve valve body 91 is omitted, and the guide part 42 of check valve valve rod 93 matches with the inwall of bonnet 92, and vertical hole 107 that several pass through for medicinal liquid is set on the guide part 42 of check valve valve rod 93.
Figure 19 shows a variant embodiment of the check valve 9 of self-destruction syringe as shown in figure 18.Check valve valve body 91 is omitted, and the part of the guide part 42 of check valve valve rod 93 matches with the inwall of bonnet 92, and vertical hole 107 that several pass through for medicinal liquid is set on the guide part 42 of check valve valve rod 93.
In above each embodiment, in bonnet 92 and the check valve valve rod 93 one of them is made by elastomeric material at least.Preferentially one of them is made by elastomeric material, and another one is made by hard material.
Figure 20 to Figure 23 shows the schematic diagram according to the embodiment that more simplifies of the check valve of self-destruction syringe of the present utility model.
Figure 20 a is the perspective view of the unused state of this embodiment; Figure 20 b is the schematic section that the check valve of the syringe shown in Figure 20 a dissects along the A-A line; Figure 20 c is the schematic section that the check valve of the syringe shown in Figure 20 a dissects along the B-B line.On the whole, the check valve 200 according to self-destruction syringe of the present utility model comprises sidewall 201 and diapire 202.Diapire 202 is to the inner recess of check valve, and this diapire 202 is provided with an otch 203 along the diameter setting.Under unused state, these otch 203 closures.
Figure 21 a is the schematic diagram of the check valve of the syringe shown in Figure 20 a at suction medicine state; Figure 21 b is the schematic section that the check valve of the syringe shown in Figure 21 a dissects along the A-A line; Figure 21 c is the schematic section that the check valve of the syringe shown in Figure 21 a dissects along the B-B line.Inhaling under the medicine state, under negative pressure that is produced injection tube 2 in and the atmospheric synergy from conehead 1, otch 203 opens naturally, the permission medicinal liquid by and enter check valve 9, and then enter injection tube 2.
Figure 22 a is the schematic diagram of the check valve of the syringe shown in Figure 20 a in aerofluxus or inject state; Figure 22 b is the schematic section that the check valve of the syringe shown in Figure 22 a dissects along the A-A line; Figure 22 c is the schematic section that the check valve of the syringe shown in Figure 22 a dissects along the B-B line.Under inject state, under the effect of injection tube 2 inner liquid medicine pressure, the diapire 202 of check valve 200 is by being forced to the inner recess of check valve be deformed into to vertical outside of check valve projection, otch 203 is forced to oppositely open, allow medicinal liquid to enter conehead 1, and then enter in the medicinal liquid person of benefiting from (as the patient) body from injection tube 2.
Figure 23 a is that the check valve of the syringe shown in Figure 20 a is at the schematic diagram of attempting to inhale once more the medicine state; Figure 23 b is the schematic section that the check valve of the syringe shown in Figure 23 a dissects along the A-A line; Figure 23 c is the schematic section that the check valve of the syringe shown in Figure 23 a dissects along the B-B line.Attempting to inhale once more under the medicine state, under negative pressure that is produced in injection tube 2 and the atmospheric synergy from conehead 1, otch 203 is forced to closure, and the domes of diapire 202 can keep this closure, prevents that medicinal liquid from being sucked injection tube 2 for the second time.
According to various embodiment of the present utility model, conehead can be provided with between two parties, also can setover.
According to other embodiment of the present utility model, also can omit the piston element on the injection rod, and the mode that the head that adopts injection rod and injection tube inwall directly cooperate.
Industrial usability
According to self-destruction syringe of the present utility model, the annular convex shoulder on the injection tube inwall is eliminated, So that the user can not feel the propelling obstacle of injection rod in the liquid medicine injection process. Soup is subjected to the user Also can reduce uncomfortable sensation. The simplification of structure also can be so that produce, reduce manufacturing in batches expeditiously Cost.
Claims (15)
1. self-destruction syringe, it comprises injection tube (2) and injection rod (4), it is characterized in that, the inner end of the injection rod stroke in injection tube (2) is provided with the disposable effective check valve (9) that matches with the inwall of this injection tube (2).
2. self-destruction syringe as claimed in claim 1, it is characterized in that, check valve (9) comprises valve body (91), bonnet (92) and valve rod (93), the valve body of check valve (91) is provided with medicine liquid channel (20) and has the bonnet seat (21) of centre bore along its central axis, and bonnet seat (21) is provided with several radial slots (25); Bonnet (92) is provided with hole (32), and this hole (32) are aimed at the medicine liquid channel (20) of check valve valve body (91); Check valve valve rod (93) comprises head (40) and guide part (41), the length of guide part (41) is substantially equal to the length of the medicine liquid channel (20) of check valve valve body (91), the trans D of head (40) is slightly larger than the size in the hole (32) of bonnet (92), and the diameter of guide part (41) is slightly less than the diameter of medicine liquid channel (20).
3. self-destruction syringe as claimed in claim 1 or 2 is characterized in that, the end towards injection rod of check valve (9) is provided with recess (26).
4. self-destruction syringe as claimed in claim 1 or 2 is characterized in that, the head (40) of check valve valve rod (93) is cydariform, discus shape, taper type or sphere.
5. self-destruction syringe as claimed in claim 1 or 2 is characterized in that, the diapire (31) of bonnet (92) is taper shape or arch.
6. self-destruction syringe as claimed in claim 1 or 2 is characterized in that, in bonnet (92) and the valve rod (93) one of them is made by elastomeric material at least.
7. self-destruction syringe as claimed in claim 1 or 2 is characterized in that, one of them in bonnet (92) and the valve rod (93) made by elastomeric material, and another one is made by hard material.
8. self-destruction syringe as claimed in claim 1, it is characterized in that, check valve (9) comprises valve body (91) and valve rod (93), check valve valve body (91) is provided with medicine liquid channel (20) along its central axis, the space (105) of the head (40) that holds check valve valve rod (93) is set in the check valve valve body (91), and radial slot (106) is set directly on the shoulder of space (105).
9. self-destruction syringe as claimed in claim 8 is characterized in that, in bonnet (92) and the valve rod (93) one of them is made by elastomeric material at least.
10. self-destruction syringe as claimed in claim 8 is characterized in that, one of them in bonnet (92) and the valve rod (93) made by elastomeric material, and another one is made by hard material.
11. self-destruction syringe as claimed in claim 1, it is characterized in that, check valve (9) comprises valve body (91) and valve rod (93), the valve body of check valve (91) is provided with medicine liquid channel (20) along its central axis, the guide part (42) of check valve valve rod (93) matches with the inwall of bonnet (92), and vertical hole (107) that several pass through for medicinal liquid is set on the guide part (42) of check valve valve rod (93).
12. self-destruction syringe as claimed in claim 11 is characterized in that, the part of the guide part (42) of check valve valve rod (93) matches with the inwall of bonnet (92).
13. as claim 11 or 12 described self-destruction syringes, it is characterized in that, in bonnet (92) and the valve rod (93) one of them is made by elastomeric material at least.
14., it is characterized in that one of them in bonnet (92) and the valve rod (93) made by elastomeric material as claim 11 or 12 described self-destruction syringes, another one is made by hard material.
15. self-destruction syringe as claimed in claim 1 is characterized in that, check valve (200) comprises sidewall (201) and diapire (202), and this diapire (202) is to the inner recess of check valve, and this diapire (202) is provided with an otch (203) along the diameter setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620119050 CN2936287Y (en) | 2006-07-27 | 2006-07-27 | Injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620119050 CN2936287Y (en) | 2006-07-27 | 2006-07-27 | Injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2936287Y true CN2936287Y (en) | 2007-08-22 |
Family
ID=38360306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620119050 Expired - Fee Related CN2936287Y (en) | 2006-07-27 | 2006-07-27 | Injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2936287Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107427310A (en) * | 2014-12-18 | 2017-12-01 | M·A·科斯卡 | Disposable injecting systems |
-
2006
- 2006-07-27 CN CN 200620119050 patent/CN2936287Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107427310A (en) * | 2014-12-18 | 2017-12-01 | M·A·科斯卡 | Disposable injecting systems |
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