CN102553027A - Needle-free injection connector without positive pressure and negative pressure - Google Patents
Needle-free injection connector without positive pressure and negative pressure Download PDFInfo
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- CN102553027A CN102553027A CN2010106205539A CN201010620553A CN102553027A CN 102553027 A CN102553027 A CN 102553027A CN 2010106205539 A CN2010106205539 A CN 2010106205539A CN 201010620553 A CN201010620553 A CN 201010620553A CN 102553027 A CN102553027 A CN 102553027A
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Abstract
The invention relates to a needle-free injection connector without positive pressure and negative pressure, comprising a joint, wherein a receiving chamber is formed above a pipe body and a liquid medium inlet is arranged at the bottom of the receiving chamber; an elastic valve arranged in the receiving chamber and having an inner space, wherein an upper seam and a lower seam formed at the top and bottom of the elastic valve are communicated with the inner space, which can be opened to form opening shapes; when the lower seam is opened, the lower seam is communicated with the liquid medium inlet; and a bidirectional conducting element is arranged in the inner space of the elastic valve and used for opening the upper seam and the lower seam when use and provided with a liquid medium runner joint. The elastic valve returns to the status quo to close the upper seam and the lower seam after use and isolates outside air and prevents upstream of the liquid medium.
Description
Technical field
The present invention relates to a kind of injection adapter, relate in particular to a kind of no positive negative pressure and exempt from pin type injection adapter, it has good airtight effect, can avoid the residual and medicament adverse current of air.
Background technology
The conventional syringes syringe is common medicament injection utensil, yet therefore the dangerous property of needle cylinder injection utensil needs to recycle, and causes medical treatment cost to raise.
Therefore, have Crinis Carbonisatus to put on display a kind of needle-free injection adapter and cooperate the needle-free injection device to come the injection medicament, this kind utensil danger is low, can reuse, and also can avoid a large amount of sky high costs that caused that reclaim.
Yet a large amount of spaces are left in existing needle-free injection adapter inside, and airtight poor effect; Cause considerable air or medicament to residue in wherein, the also improper adverse current of medicament and blood also residues in the miscellaneous part, when next injection medicament; Air or residual medicament can be driven into the malleation mode in the lump and cause the improper expansion of blood vessel in patient's body; Make the patient produce pain, and injection finishes when drawing back syringe, blood and medicament are penetrated in the adapter with the re-injection of negative pressure mode adverse current; So reciprocal operation; Because blood vessel receives malleation to expand the pain that is produced, blood or body fluid that the while adverse current is returned are back in patient's body, also can cause repeated infection when causing the patient to bear the injection medicament for no reason.
In addition; Placement puncture type conduction pipe is mainly joined in existing needle-free injection adapter inside among resilient sleeve; But the two ends up and down of two ends elasticity of extension cover are so that inject about the conduction pipe; Yet the puncture type conduction pipe is assembled through the upper and lower half element each other, thus itself leave the space easily and can residual medicament and blood in wherein.Moreover, even the lower end of conduction pipe or upper end in inject state not, outside the corresponding opening of upper/lower terminal that also can the elasticity of extension cover, so external agent or blood get into conduction pipe inside easily.
Summary of the invention
The inventor is because traditional too big and improper residual air of needle-free injection adapter internal voids or medicament and make medicament or blood back flow easily improve its deficiency and defective, and then invents out a kind of no positive negative pressure and exempt from pin type and inject adapter.
Main purpose of the present invention provides a kind of no positive negative pressure and exempts from pin type injection adapter, and it has good airtight effect, can avoid air or medicament residual and medicament or blood back flow.
For reaching above-mentioned purpose; The present invention provides a kind of no positive negative pressure to exempt from pin type injection adapter, and it includes: a joint has a body; Above body, be formed with a room; Room has a upper shed and a bottom, on the bottom, runs through to be formed with a medicinal liquid inflow entrance, in the body bottom, is formed with the passage that is connected with room; One feather valve; Be arranged in the room, have an inner space, and feather valve is with sealing room bottom, bottom medicinal liquid inflow entrance; On feather valve top and bottom, form respectively and crack on one and once crack to be connected with the inner space; On crack and be preset as air-tight state with cracking down, and can strut and form the perforate shape, time cracking is communicated with the medicinal liquid inflow entrance when opening; A pair of is to breakover element; It is one-body molded; And central authorities punishment is arranged among the inner space of feather valve to top and bottom constriction and make its profile have gradient gradually, and top and bottom can strut respectively crack and under crack; On the two-way admittance element, be formed with a transfusion runner, this transfusion runner can with strut crack and under crack and be connected; And a dosing seat, be hollow, be arranged on the joint, and this dosing seat of the preset sealing in feather valve top, wherein do not have positive negative pressure and exempt from pin type injection adapter when not using, upper and lower the cracking of feather valve is air-tight state and hermetic closed dosing seat and medicinal liquid inflow entrance.
Aforementioned joint medicinal liquid inflow entrance is formed with a cancave cambered surface in abutting connection with the top of room, and two-way admittance element bottom tool one convex globoidal is with the cancave cambered surface of selective binding medicinal liquid inflow entrance; Be formed with a chamber on this dosing seat, injection port chamber has an injection port and a under shed on one on this, and injection port is gone up in the preset sealing in the top of feather valve; This feather valve centre projection radially outward has a guidance part, and this guidance part slidably contacts dosing seat chamber inner wall can carry out vertical linearity relative to chamber moves the two-way admittance element.
Aforementioned feather valve is separated out on one variant part and variant part once by the centre district, and variant part is taper on this, can receive the external force vertical compression and is out of shape and restores to the original state in the external force back that disappears, and on last variant part, is formed with at least one corrugations that goes up; This time variant part is tapered, can receive the external force vertical compression and is out of shape and restores to the original state in the external force back that disappears, in being formed with at least one corrugations down on the variant part down.
Aforementioned feather valve inner space is formed with the location division of a corresponding guidance part by centre; The centre of two-way admittance element forms to stretch has a setting element to combine with the location division of feather valve.
Aforementioned feather valve bottom is formed with one and is arranged on the last and airtight pad against dosing seat bottom in room bottom.
Aforementioned room inwall leans on upper shed place to be formed with a plurality of location short slot, on the dosing seat, radially outward is formed with a loam cake with the upper shed of sealing room, on the dosing seat, is formed with a plurality of positioning tooths and mutually combines with the location short slot with joint.
The transfusion runner of aforementioned two-way admittance element is a perforation.
The transfusion runner of aforementioned two-way admittance element is at least one profile groove.
Aforementioned feather valve is that a separate first half and a Lower Half formed, and the first half inner surface radial direction of feather valve inwardly is formed with a circular orientation rib, and a Lower Half inner surface radial direction inwardly is formed with a circular orientation rib; On this two-way admittance element respectively near the top of locating lug and place, below, be formed with respectively a circular orientation groove with respectively with the circular orientation rib of the first half and Lower Half; The perforation of two-way admittance element then has a plurality of open upper end.
Another purpose of the present invention provides a kind of no positive negative pressure and exempts from pin type injection adapter; It includes a joint; Have a body, be formed with a room on the body top, room has a upper shed and a bottom; On the bottom, run through and be formed with a medicinal liquid inflow entrance, in the body bottom, be formed with the passage that is connected with room; One feather valve; Be arranged in the room, have an inner space, and feather valve is with sealing room bottom, bottom medicinal liquid inflow entrance; On feather valve top and bottom, form respectively and crack on one and once crack to be connected with the inner space; On crack and be preset as air-tight state with cracking down, and can strut and form the perforate shape, time cracking is communicated with the medicinal liquid inflow entrance when opening; A pair of is to breakover element; Its central authorities punishment is to top and bottom constriction and make its profile have gradient gradually; Be arranged among the inner space of feather valve; And top and bottom can strut respectively cracks and cracks down, on the two-way admittance element, is formed with the runner of infusing, this transfusion runner can with strut crack and under crack and be connected; And a dosing seat, be hollow, be arranged on the joint; And this dosing seat of the preset sealing in feather valve top; Wherein feather valve is made up of a first half and a Lower Half, on the first half and the Lower Half respectively radially projection be formed with a location flange, and on the two-way admittance element radially projection be formed with a fixing bulge loop; Be formed with a ring groove respectively to combine locating flange respectively at the locating ring upper and lower faces, make fixedly bulge loop of the common clamping of locating flange thus.
Through above-mentioned technological means; When feather valve does not receive external force and is maintained at preset shape; On crack and all be hermetic closed state and the upper/lower terminal of complete closed two-way admittance element with cracking down, can effectively block the adverse current of medicament and blood in entering and the patient's body of extraneous air or medicament.In addition, make up through assembling mode, so can avoid generation gap between the element and medicinal liquid or blood leakage, residual problem are arranged because the two-way admittance element is one-body molded.
Description of drawings
Fig. 1 is a first embodiment of the present invention stereo appearance figure.
Fig. 2 is a first embodiment of the present invention three-dimensional exploded view.
Fig. 3 be the first embodiment of the present invention plug into one exempt from needle injector the side analyse and observe the enforcement state diagram.
Fig. 4 is the operation chart of hookup 3 of the present invention.
Fig. 5 is the operation chart of hookup 4 of the present invention.
Fig. 6 is a second embodiment of the present invention stereo appearance figure.
Fig. 7 is a second embodiment of the present invention three-dimensional exploded view.
Fig. 8 be the second embodiment of the present invention plug into one exempt from needle injector the side analyse and observe the enforcement state diagram.
Fig. 9 is a third embodiment of the present invention three-dimensional exploded view.
Figure 10 is the side sectional view of the third embodiment of the present invention.
Figure 11 be hookup 3 of the present invention plug into one exempt from needle injector the side analyse and observe the enforcement state diagram.
The specific embodiment
Below cooperate graphic and of the present invention preferred embodiment, further setting forth the present invention is to reach the technological means that predetermined goal of the invention is taked.
Please referring to figs. 1 through 3; The present invention do not have positive negative pressure exempt from pin type injection adapter first embodiment, one end can with one exempt from needle injector 90 and plug into; The other end and a tube for transfusion are plugged into; Tube for transfusion can connect one and reside in the intravital needle tubing of patient, thus, and can be by exempting from needle injector 90 through not having positive negative pressure and exempting from pin type injection adapter and to patient's injection medicament.
This does not have positive negative pressure and exempts from pin type injection adapter and include a joint 1, a feather valve 2, a pair of to a breakover element 3 and a dosing seat 4.
This joint 1 has a body 10.Body 10 tops are formed with a room 11; Room 11 has a upper shed and a bottom; This bottom 110 is a barricade; On bottom 110, run through and be formed with a medicinal liquid inflow entrance 12, medicinal liquid inflow entrance 12 forms a cancave cambered surface 121 in abutting connection with the top end of room 11, in body 10 bottoms, is formed with the passage 14 that is connected with room 11 so that be connected with tube for transfusion.In addition, room 11 inwalls can be formed with a fin 111, and room 11 inwalls lean on place, upper shed limit can form a plurality of positioning tooths 13.This feather valve 2 is a hollow, has elasticity and can receive external force deformation and restore to the original state in the external force back that disappears, and be arranged in joint 1 room 11, and feather valve 2 is with the medicinal liquid inflow entrance 12 of sealing room 11 bottoms 110, bottom.In feather valve 2, be formed with a slightly tapered inner space 21; On feather valve 2 tops and bottom, form respectively crack on one 211 with crack 212 once to be connected with inner space 21; On crack 211 with under crack and 212 be preset as air-tight state; And can be strutted and formed the perforate shape, in addition, the medicinal liquid inflow entrance 12 of 212 alignment rooms, 11 bottoms 110 of cracking down and can when opening, being connected with medicinal liquid inflow entrance 12.Feather valve 2 is separated out on one variant part 24 and variant part 25 once by the centre district; Should go up the roughly tapered and top of variant part 24 and be crown; Can receive the external force vertical compression and be out of shape and restore to the original state in the external force back that disappears, the last corrugations 241 that on last variant part 24, can be formed with in the form of a ring at least one or other shapes is so that the reinforcement deformation effect.This time variant part 25 is roughly tapered, can receive the external force vertical compression and is out of shape and restores to the original state in the external force back that disappears, in being formed with the following corrugations 251 of in the form of a ring at least one or other shapes so that strengthen deformation effect on the variant part 25 down.In addition, following variant part 25 thickness can be thinner than the thickness of variant part 24.
The projection radially outward of feather valve 2 centre has a guidance part 22.Feather valve 2 inner spaces 21 are formed with the location division of a corresponding guidance part 22 by centre, and this location division can be a locating slot 221.Be formed with the pad 23 that is arranged on room 11 bottoms 110 in feather valve 2 bottoms.Again, feather valve 12 can be a separate first half 201 and a Lower Half 202 assembles each other.
This two-way admittance element 3 roughly is the shuttle shape; One-body molded manufacturing forms; And to top and bottom constriction and make its profile have gradient gradually, in addition, convex globoidal can be had so that can be close to the cancave cambered surface 121 of combination medicinal liquid inflow entrance in two-way admittance element 3 bottoms by its central authorities punishment.Two-way admittance element 3 is airtight to be arranged among the inner space 21 of feather valve 2; And top and bottom can strut respectively crack 211 with under crack 212; On two-way admittance element 3, be formed with a transfusion runner; This transfusion runner can with strut crack 211 and under crack and 212 be connected, and this transfusion runner can be one run through two-way admittance element 3 perforation 31, as shown in Figure 3.Can form to stretch in the centre of two-way admittance element 3 has a setting element and avoids these two-way admittance element 3 relative resilient valves 2 to produce horizontal or vertical displacement so that combine with the location division of feather valve 2, and the locating lug 32 that this setting element can be at least one projection mutually combines with the locating slot 221 with feather valve 2.
Please once more with reference to Fig. 1 and 2, this dosing seat 4 is arranged on the joint 1, but closed joint 1 room 11, and dosing seat 4 with the bottom against feather valve 2 pads 23.On dosing seat 4, be formed with a chamber 41; This chamber 41 has an injection port and a under shed on one; And the preset sealing in the top of feather valve 2 is gone up injection port and can in last injection port, be slided, in addition, last injection port can with open feather valve 2 on crack and 211 be connected.Chamber 41 inwalls can contact with the guidance part 22 of feather valve 2 and relative to sliding so that the two-way admittance element 3 feather valve 2 in can move relative to the vertical linearity of chamber 41 maintenances.On dosing seat 4, radially outward be formed with a loam cake 43 with sealing room 11 upper sheds, on dosing seat 4, be formed with a plurality of positioning tooths 431 and mutually combine with location short slot 13 and avoid dosing seat 4 opposing tabs to rotate with joint 1.On dosing seat 4, be formed with a groove 45 with room 11 in fin 111 combine.
Please once more with reference to Fig. 3, when exempting from needle injector 90 and do not insert the last injection port of dosing seat 4 as yet, injection port is gone up in feather valve 2 vertical coronals sealings, and on crack and 211 212 all seal with cracking down.
Please further with reference to Fig. 4, insert when going up injection port when exempting from needle injector 90, feather valve 2 bottoms receive power extruding vertically downward, last variant part 24, on crack and 211 take the lead in being run through and strut by the top of two-way admittance element 3.Guidance part 22 relative chamber 41 inwalls vertically slide and guarantee that two-way admittance element 3 vertically slides at this moment.The transfusion runner of two-way admittance element 3 with exempt from needle injector 90 and be interconnected, make medicament can flow into infusing among the runner.
Please further with reference to Fig. 5, when exempting from needle injector 90 and continue to insert downwards, crack down and 212 then run through and strut by the bottom of two-way admittance element 3.At this moment, transfusion runner and the joint 1 medicinal liquid inflow entrance 12 etc. four of exempting from injection port, two-way admittance element 3 on needle injector 90, the dosing seat 4 are interconnected, and medicinal liquid can not exempted from pin type injection adapter and flows among the patient through there being positive negative pressure.In addition; The convex globoidal of two-way admittance element 3 bottoms stops to move against medicinal liquid inflow entrance 12 vertical cancave cambered surfaces 121; Almost very close to each other between two-way admittance element 3, pad 23 and the room bottom 110 at this moment, can avoid residual medicine or blood to residue among joint 1 room 11 and dosing seat 4 chambers 41.
Remove when exempting from needle injector 90 when accomplishing injecting program, crack on then and 211 212 seal in regular turn with cracking down.And residual air can be exempted from outside the pin type injection adapter by the joint 1 and the seam slit no positive negative pressure of discharge of dosing seat 4 in joint 1 room 11 and dosing seat 4 chambers 41.
Please with reference to Fig. 6 to 8; The second embodiment of the present invention is roughly identical with first embodiment; But on the first half 201a of feather valve 2 and the Lower Half 202a respectively radially projection be formed with one the location flange 205; And on the two-way admittance element 3 radially projection be formed with a fixing bulge loop 32, be formed with a ring groove 321 respectively to combine locating flange 205 respectively at locating ring 32 upper and lower faces, make fixedly bulge loop 32 of locating flange 205 common clampings thus.
Please with reference to Fig. 9 to 11, the second embodiment of the present invention is roughly identical with first embodiment, has a joint 1a, a feather valve 2a, a pair of equally to a breakover element 3a and a dosing seat 4.But the first half 201 inner surface radial directions of feather valve 2a inwardly are formed with a circular orientation rib 206, one Lower Halves 202 inner surface radial directions and inwardly are formed with a circular orientation rib 207.On this two-way admittance element 3 respectively near the top of locating lug 32 and place, below, be formed with respectively a circular orientation groove 323,324 with respectively with the circular orientation rib 206,207 of the first half 201 and Lower Half 202.In addition, 31 of the perforations of two-way admittance element 3 have a plurality of open upper end 31a, for example can have three open upper end 31a.
The present invention has advantage:
1, exempt from needle injector 90 do not insert the injection adapter before; Feather valve 2 does not receive external force and is maintained at preset shape; On crack and 211 212 all be hermetic closed state and the upper/lower terminal of complete closed two- way admittance element 3,3a with cracking down, can effectively block the adverse current of medicament and blood in entering and the patient's body of extraneous air or medicament.When exempting from that needle injector 90 is inserted and the injection medicament finishes and own elasticity valve 2 tops when removing; Receive the feather valve 2 of vertical compression following the gradient of two-way admittance element 3 rapidly and extending reinstatement; Therefore; Exempt from needle injector 90 in case separate with feather valve 2 fully, on crack 211 closed fully so that the sexual adverse current that blocks external air or medicament and blood with 212 whiles of cracking down.The pain that is caused when technological means can effectively reduce patient's injection medicament thus.
2, the design through aforementioned mechanism is reduced to the blood of air, medicinal liquid or adverse current that maybe be remaining minimum, makes patient can the factor that positive and negative pressure produces be leveled off to minimum when of the present invention and do not have even in using.
3,, so can avoid generation gap between the element and medicinal liquid or blood leakage, residual problem are arranged because two- way admittance element 3,3a is one-body molded but not make up through assembling mode.
The above only is preferred embodiment of the present invention; Not being that the present invention is done any pro forma restriction, though the present invention with the preferred embodiment exposure as above, yet is not in order to limit the present invention; Anyly be familiar with the professional and technical personnel; In the scope that does not break away from technical scheme of the present invention, make a little change or be modified to the equivalent embodiment of equivalent variations when the technology contents of above-mentioned announcement capable of using, be the content that does not break away from technical scheme of the present invention in every case;, all still belong in the scope of technical scheme of the present invention any simple modification, equivalent variations and modification that above embodiment did according to technical spirit of the present invention.
Claims (10)
1. a no positive negative pressure is exempted from pin type injection adapter, it is characterized in that, this does not have positive negative pressure and exempts from pin type injection adapter and include:
One joint has a body, is formed with a room on the body top, and room has a upper shed and a bottom, on the bottom, runs through to be formed with a medicinal liquid inflow entrance, in the body bottom, is formed with the passage that is connected with room;
One feather valve; Be arranged in the room, have an inner space, and feather valve is with sealing room bottom, bottom medicinal liquid inflow entrance; On feather valve top and bottom, form respectively and crack on one and once crack to be connected with the inner space; On crack and be preset as air-tight state with cracking down, and can strut and form the perforate shape, time cracking is communicated with the medicinal liquid inflow entrance when opening;
A pair of is to breakover element; It is one-body molded; And its central authorities punishment is arranged among the inner space of feather valve to top and bottom constriction and make its profile have gradient gradually, and top and bottom can strut respectively crack and under crack; On the two-way admittance element, be formed with a transfusion runner, this transfusion runner can with strut crack and under crack and be connected; And
One dosing seat is hollow, is arranged on the joint, and this dosing seat of the preset sealing in feather valve top, wherein
Do not have positive negative pressure and exempt from pin type injection adapter when not using, upper and lower the cracking of feather valve is air-tight state and hermetic closed dosing seat and medicinal liquid inflow entrance.
2. no positive negative pressure according to claim 1 is exempted from pin type injection adapter, and its center tap medicinal liquid inflow entrance is formed with a cancave cambered surface in abutting connection with the top of room, and two-way admittance element bottom tool one convex globoidal is with the cancave cambered surface of selective binding medicinal liquid inflow entrance; Be formed with a chamber on this dosing seat, injection port chamber has an injection port and a under shed on one on this, and injection port is gone up in the preset sealing in the top of feather valve; This feather valve centre projection radially outward has a guidance part, this guidance part with can sliding type contact dosing seat chamber inner wall make the two-way admittance element carry out vertical linearity to move relative to chamber.
3. no positive negative pressure according to claim 1 is exempted from pin type injection adapter; Wherein feather valve is separated out on one variant part and variant part once by the centre district; Should go up variant part and be taper; Can hard to bear external force vertical compression and be out of shape and restore to the original state in the external force back that disappears, on last variant part, be formed with at least one corrugations that goes up; This time variant part is tapered, can hard to bear external force vertical compression and be out of shape and restore to the original state in the external force back that disappears, and in being formed with at least one corrugations down on the variant part down.
4. no positive negative pressure according to claim 2 is exempted from pin type injection adapter, and wherein the feather valve inner space is formed with the location division of a corresponding guidance part by centre; The centre of two-way admittance element forms to stretch has a setting element to combine with the location division of feather valve.
5. no positive negative pressure according to claim 1 is exempted from pin type injection adapter, and wherein the feather valve bottom is formed with one and is arranged on the room bottom and goes up and airtight pad against dosing seat bottom.
6. no positive negative pressure according to claim 1 is exempted from pin type injection adapter; Wherein the room inwall leans on upper shed place to be formed with a plurality of location short slot; On the dosing seat, radially outward be formed with a loam cake with the upper shed of sealing room, on the dosing seat, be formed with a plurality of positioning tooths and mutually combine with location short slot with joint.
7. exempt from pin type injection adapter according to each described no positive negative pressure in the claim 1 to 6, wherein the transfusion runner of two-way admittance element is a perforation.
8. exempt from pin type injection adapter according to each described no positive negative pressure in the claim 1 to 6, wherein the transfusion runner of two-way admittance element is at least one profile groove.
9. no positive negative pressure according to claim 2 is exempted from pin type injection adapter; Wherein feather valve is that a separate first half and a Lower Half formed; The first half inner surface radial direction of feather valve inwardly is formed with a circular orientation rib, and a Lower Half inner surface radial direction inwardly is formed with a circular orientation rib; On this two-way admittance element respectively near the top of locating lug and place, below, be formed with respectively a circular orientation groove with respectively with the circular orientation rib of the first half and Lower Half; The perforation of two-way admittance element then has a plurality of open upper end.
10. a no positive negative pressure is exempted from pin type injection adapter, it is characterized in that this does not have positive negative pressure and exempts from pin type injection adapter and include:
One joint has a body, is formed with a room on the body top, and room has a upper shed and a bottom, on the bottom, runs through to be formed with a medicinal liquid inflow entrance, in the body bottom, is formed with the passage that is connected with room;
One feather valve; Be arranged in the room, have an inner space, and feather valve is with sealing room bottom, bottom medicinal liquid inflow entrance; On feather valve top and bottom, form respectively and crack on one and once crack to be connected with the inner space; On crack and be preset as air-tight state with cracking down, and can strut and form the perforate shape, time cracking is communicated with the medicinal liquid inflow entrance when opening;
A pair of is to breakover element; Its central authorities punishment is to top and bottom constriction and make its profile have gradient gradually; Be arranged among the inner space of feather valve; And top and bottom can strut respectively cracks and cracks down, on the two-way admittance element, is formed with the runner of infusing, this transfusion runner can with strut crack and under crack and be connected; And
One dosing seat is hollow, is arranged on the joint, and this dosing seat of the preset sealing in feather valve top, wherein
Feather valve is made up of a first half and a Lower Half; On the first half and the Lower Half respectively radially projection be formed with one the location flange; And on the two-way admittance element radially projection be formed with a fixing bulge loop; Be formed with a ring groove respectively to combine locating flange respectively at the locating ring upper and lower faces, make fixedly bulge loop of the common clamping of locating flange thus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010620553.9A CN102553027B (en) | 2010-12-22 | 2010-12-22 | Needle-free injection connector without positive pressure and negative pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010620553.9A CN102553027B (en) | 2010-12-22 | 2010-12-22 | Needle-free injection connector without positive pressure and negative pressure |
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| Publication Number | Publication Date |
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| CN102553027A true CN102553027A (en) | 2012-07-11 |
| CN102553027B CN102553027B (en) | 2015-06-03 |
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| CN201010620553.9A Active CN102553027B (en) | 2010-12-22 | 2010-12-22 | Needle-free injection connector without positive pressure and negative pressure |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107693882A (en) * | 2016-08-08 | 2018-02-16 | 善德生化科技股份有限公司 | Safe infusion joint |
| CN107693881A (en) * | 2016-08-08 | 2018-02-16 | 善德生化科技股份有限公司 | Safe infusion joint |
| CN107890275A (en) * | 2017-12-23 | 2018-04-10 | 聂芹芹 | A kind of congee preparation method |
| CN109862930A (en) * | 2016-10-07 | 2019-06-07 | 贝克顿·迪金森公司 | Syringe with connector |
| CN109998918A (en) * | 2019-04-26 | 2019-07-12 | 台州安融医疗器械有限公司 | A kind of dispenser |
| CN111097085A (en) * | 2018-10-25 | 2020-05-05 | 陈戴毅 | Needle-free connector |
| CN114557886A (en) * | 2022-01-21 | 2022-05-31 | 宁波汉科医疗器械有限公司 | Needleless connector and medicine adding assembly |
| CN115487397A (en) * | 2022-11-21 | 2022-12-20 | 深圳麦普奇医疗科技有限公司 | Anti-backflow light-shading pressure extension tube |
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