CN109998918A - A kind of dispenser - Google Patents
A kind of dispenser Download PDFInfo
- Publication number
- CN109998918A CN109998918A CN201910342408.XA CN201910342408A CN109998918A CN 109998918 A CN109998918 A CN 109998918A CN 201910342408 A CN201910342408 A CN 201910342408A CN 109998918 A CN109998918 A CN 109998918A
- Authority
- CN
- China
- Prior art keywords
- mounting base
- dispenser
- silica gel
- built
- air
- 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.)
- Pending
Links
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 34
- 239000012528 membrane Substances 0.000 claims description 34
- 239000000741 silica gel Substances 0.000 claims description 34
- 229910002027 silica gel Inorganic materials 0.000 claims description 34
- 238000007789 sealing Methods 0.000 claims description 33
- 238000001914 filtration Methods 0.000 claims description 28
- 238000009434 installation Methods 0.000 claims description 14
- 206010011732 Cyst Diseases 0.000 claims description 12
- 208000031513 cyst Diseases 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 8
- 239000003814 drug Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 6
- 238000005452 bending Methods 0.000 claims description 3
- 239000012530 fluid Substances 0.000 description 17
- 238000002347 injection Methods 0.000 description 9
- 239000007924 injection Substances 0.000 description 9
- 238000003780 insertion Methods 0.000 description 6
- 230000037431 insertion Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000000284 extract Substances 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000003915 air pollution Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 208000036142 Viral infection Diseases 0.000 description 1
- 239000002246 antineoplastic agent Substances 0.000 description 1
- 229940041181 antineoplastic drug Drugs 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000004438 eyesight Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
- A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
- A61J1/14—Details; Accessories therefor
- A61J1/20—Arrangements for transferring or mixing fluids, e.g. from vial to syringe
- A61J1/2003—Accessories used in combination with means for transfer or mixing of fluids, e.g. for activating fluid flow, separating fluids, filtering fluid or venting
- A61J1/2006—Piercing means
- A61J1/201—Piercing means having one piercing end
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
- A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
- A61J1/14—Details; Accessories therefor
- A61J1/20—Arrangements for transferring or mixing fluids, e.g. from vial to syringe
- A61J1/2003—Accessories used in combination with means for transfer or mixing of fluids, e.g. for activating fluid flow, separating fluids, filtering fluid or venting
- A61J1/2048—Connecting means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
- A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
- A61J1/14—Details; Accessories therefor
- A61J1/20—Arrangements for transferring or mixing fluids, e.g. from vial to syringe
- A61J1/2003—Accessories used in combination with means for transfer or mixing of fluids, e.g. for activating fluid flow, separating fluids, filtering fluid or venting
- A61J1/2068—Venting means
- A61J1/2072—Venting means for internal venting
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
- A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
- A61J1/14—Details; Accessories therefor
- A61J1/20—Arrangements for transferring or mixing fluids, e.g. from vial to syringe
- A61J1/2003—Accessories used in combination with means for transfer or mixing of fluids, e.g. for activating fluid flow, separating fluids, filtering fluid or venting
- A61J1/2079—Filtering means
- A61J1/2082—Filtering means for gas filtration
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
- A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
- A61J1/14—Details; Accessories therefor
- A61J1/20—Arrangements for transferring or mixing fluids, e.g. from vial to syringe
- A61J1/2089—Containers or vials which are to be joined to each other in order to mix their contents
Landscapes
- Health & Medical Sciences (AREA)
- Pharmacology & Pharmacy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Medical Preparation Storing Or Oral Administration Devices (AREA)
Abstract
The invention discloses a kind of dispensers, belong to medical equipment technical field, solve reliability and convenience issue during making up a prescription, its key points of the technical solution are that including lower case, upper housing, the core group being installed within upper housing and lower case；The lower case include puncture needle, positioned at the ventilating part of integrally connected above puncture needle, above ventilating part the mounting base of integrally connected, positioned at mounting base two sides integrally connected for fastening the hand-held part of bottleneck, it is provided with the first passage for being connected to ventilating part two sides in the puncture needle, the second channel for passing straight through to mounting base center is additionally provided in the puncture needle；The upper housing is fixedly connected in mounting base, improves the convenience operated with and safety.
Description
Technical field
The present invention relates to area of medical devices, particularly, are related to a kind of dispenser.
Background technique
During medical treatment, doctor or nurse are usually directed to work of making up a prescription.The operating process of a current routine is such as
Under: doctor takes syringe, installs injection needle on the injector, extracts inside quantitative air to syringe, will inject first
Syringe needle is inserted into medical vials, injection air enter medical vials then extract etc. medicine amount liquids, then by medical fluid injection additionally need it is mixed
In the medical vials for closing collocation, the purpose made up a prescription is realized.
From the foregoing, it will be observed that first: syringe is arranged in pairs or groups during injection needle, and syringe needle has the risk for stabbing medical worker；The
Two: medical vials are sealing, medical fluid injection or air injection process, all there is positive pressure, need to exert oneself, relatively harder；Third: needle
When the sealing cover of head insertion medical vials, it is equivalent to and perforates to sealing cover, it is some while will lead to formation hole on sealing cover
Particle falls off；4th, air is easy contact medical fluid during extraction, leads to liquid medicine contamination or parasitic bacteria；5th, such as
Fruit extract anti-tumor drug because drug be it is virose, have the possibility of volatilization, by syringe extract or inject have leakage
Risk causes very big health risk to medical staff.
Summary of the invention
The present invention is directed to solve at least some of the technical problems in related technologies.In view of this, this hair
Improving eyesight is that proposition safely, conveniently uses convenient for medical staff, improves the reliability used.
In order to solve the above-mentioned technical problem, the technical scheme is that a kind of dispenser, including lower case, upper housing,
The core group being installed within upper housing and lower case；The lower case includes puncture needle, the integrally connected above puncture needle
Ventilating part, above ventilating part the mounting base of integrally connected, positioned at mounting base two sides integrally connecteds for fastening bottleneck
Hand-held part is provided with the first passage for being connected to ventilating part two sides in the puncture needle, is additionally provided in the puncture needle straight-through
To the second channel at mounting base center；
The upper housing is fixedly connected in mounting base；The core group includes built-in needle tubing, is socketed on the upper of built-in needle tubing upper end
Silica gel sheath and the lower silica gel sheath for being socketed on built-in needle tubing lower end, the upper silica gel sheath are realized between built-in needle tubing and upper housing
Sealing, the lower silica gel sheath realizes the sealing between built-in needle tubing and mounting base.
By above-mentioned setting, puncture needle is directly inserted into medical vials, syringe no matching is required injection needle, it is only necessary to will infuse
Emitter is inserted into from upper housing upper end, and the end of syringe squeezes upper silica gel sheath at this time, so that built-in needle tubing is contacted and connected
The end of upper syringe, upper silica gel sheath deformation but can effectively seal inner passage, and then built-in needle tubing can also be deep enough after moving down
Into second channel, the air in syringe or medical fluid are isolated from the outside world at this time, can smoothly enter into medical vials.It is medical at this time
Bottle in air pressure will increase, the air in medical vials enters ventilating part by first passage, be exhausted using ventilating part or
Air-breathing reaches labour-saving purpose so as to equal the internal pressure in horizontal medical vials faster.It is convenient for for puncture needle being inserted into hand-held part
Medical vials are simultaneously fastened.
It can be preferred as concrete scheme of the invention are as follows: the ventilating part has the first installation end, and the first installation end is inserted
It connects and is fixed with bowl, the opening of the bowl is fixedly connected with cyst membrane, and bowl has the port connecting with first passage.
By above-mentioned setting, after ventilating part connects bowl, the gas in medical vials is not easy to reveal, and cures when in order to adjust
It with the internal pressure of bottle, is then realized by the cyst membrane of bowl.That is: when the air in medical vials needs to discharge, then directly by the
One channel enters in bowl, and cyst membrane is heaved；When the medical fluid in medical vials is reduced, air pressure is reduced, then the cyst membrane by heaving
Again by air return into medical vials.
It can be preferred as concrete scheme of the invention are as follows: the ventilating part also has the second installation end, second peace
Dress end is fixedly connected with air-filtering membrane, silica gel check valve is provided with outside air-filtering membrane, silica gel check valve is for unidirectionally importing
Air.
When some, medical staff needs to use by stages using medical fluid, if cyst membrane has been in the rounding state limit
When, it is also necessary to medical fluid is detached, still can generate negative pressure in such medical vials, for this purpose, by above-mentioned setting, at this time in order to balance
The internal pressure of medical vials, outside air can pass through silica gel check valve and air-filtering membrane, then pass through ventilating part and first passage
Enter in medical vials, air achieved the purpose that air filtering by air-filtering membrane at this time, while meet equilibrium air pressure and
The requirement of safety.The air-filtering membrane in close outside is provided with a silica gel check valve on one side, so that air will not bidirectional flow
It is dynamic, medical fluid volatilization leakage is prevented, safety is improved.
It can be preferred as concrete scheme of the invention are as follows: first installation end is fixedly connected with air-filtering membrane.
By above-mentioned setting, the effect of filter membrane was air filtering and dust or plastic grain.
It can be preferred as concrete scheme of the invention are as follows: the upper surface of the mounting base and the lower surface of upper housing are all provided with
It is equipped with the ring rib to fit each other, the two cooperation enables liquid to flow simultaneously filtration between ring rib, i.e. medical fluid exists
Filtration is flowed between ring rib, but filter area is unaffected.
By above-mentioned setting, on the one hand ring rib improves the reliability of assembly, increases contact surface, is on the other hand easy for
Residual liquor on built-in needle tubing or lower silica gel sheath rests in mounting base, reduces the pollution to built-in needle tubing and medical vials.
It can be preferred as concrete scheme of the invention are as follows: the upper end of the upper silica gel sheath and lower silica gel sheath is bellows
Structure.
By above-mentioned setting, contact surface can be increased using bellows structure first, improve fastening and sealing effect；Second
Sealing effect can be still able to maintain when deformation in order to deformation.
It can be preferred as concrete scheme of the invention are as follows: the lower end of the built-in needle tubing is pyramidal structure, and is being moved down
It is inserted into the upper end of second channel in the process.
By above-mentioned setting, pyramidal structure is more stable convenient for the movement of built-in needle tubing and moving direction, effectively extend into
Second channel upper end.
It can be preferred as concrete scheme of the invention are as follows: the upper-end part of driving of the upper housing is thread segment, the upper casing
Body includes the anti-guard housing being integrally surrounded on outside thread segment, is integrally connected in being provided with sealing, the sealing on thread segment
Anti- guard housing edge and the sealing cover for bending connection, the sealing cover is for opening and closing the thread segment and anti-guard housing opening.
By above-mentioned setting, the reliability of syringe connection can be improved.In addition sealing cover can also protect thread segment, need
Sealing cover is opened when use, do not need using when close sealing cover, can reduce or avoid in this way at thread segment by
Air pollution.
It can be preferred as concrete scheme of the invention are as follows: the lateral surface of the hand-held part is provided with several anti-skidding raised lines.
By above-mentioned setting, it is convenient for finger manipulation, is not easy to skid.
It can be preferred as concrete scheme of the invention are as follows: be located at below ventilating part on the puncture needle and be provided with limit
Portion, the limiting section are plate-like vertical with pin puncture direction is punctured.
By above-mentioned setting, the depth of puncture needle insertion can be limited, insertion position is may thereby determine that and facilitates behaviour
Make.
The technology of the present invention effect major embodiment is in the following areas:
One, it is not necessarily to injection needle, needle is avoided to pierce medical staff；
Two, sharp puncture needle is easy in insertion bottle；
Three, the hand-held part design of frog leg shape is suitble to the medical vials of big polytypic range bore；
Four, cyst membrane keeps stable gas pressure in bottle using air bag principle automatic inflating and prevents gas from leaking；
Five, filter membrane can filter plastic grains impurity caused by puncture；
Six, needleless two way seal prevents liquid leakage or gas to be discharged；
Seven, when extracting medical fluid, gas, which is unidirectionally filled with automatically in bottle, keeps pressure in the bottle stabilization that can not leak into outside bottle；
Eight, dry tack free is kept when syringe is detached from dispenser；
Nine, dispenser connection injector surface can be sterilized with alcohol wipe.
Detailed description of the invention
Fig. 1 is structural schematic diagram in embodiment 1；
Fig. 2 is Structure explosion diagram in embodiment 1；
Fig. 3 is structure sectional view in embodiment 1；
Fig. 4 is the structural side view in embodiment 1；
Fig. 5 is the structural schematic diagram of embodiment 2, main presentation sealing.
Appended drawing reference: 1, lower case；11, puncture needle；12, ventilating part；121, the first installation end；122, the second installation end；
13, mounting base；131, ring rib；14, hand-held part；141, anti-skidding raised line；15, first passage；16, second channel；17, it limits
Portion；2, upper housing；3, core group；31, built-in needle tubing；32, upper silica gel sheath；33, lower silica gel sheath；4, bowl；41, port；5, capsule
Film；6, silica gel check valve；7, air-filtering membrane；8, sealing；81, anti-guard housing；82, sealing cover；9, liquid medicine filtering membrane.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, so that technical solution of the present invention is more readily understood and slaps
It holds, and is not considered as limiting the invention.
Embodiment:
A kind of dispenser, referring to fig. 1 and fig. 2, including lower case 1, upper housing 2, be installed on upper housing 2 and lower case 1 it
Interior core group 3.Lower case 1 include puncture needle 11, above puncture needle 11 ventilating part 12 of integrally connected, be located at ventilating part 12
The mounting base 13 of top integrally connected, the hand-held part 14 for being used to fasten bottleneck positioned at 13 two sides integrally connected of mounting base.It is hand-held
The lateral surface in portion 14 is provided with several anti-skidding raised lines 141.Convenient for finger manipulation, it is not easy to skid.The sharp position of puncture needle 11 is downward.
It is located at below ventilating part 12 on puncture needle 11 and is provided with limiting section 17, limiting section 17 is plate-like hangs down with the puncture of puncture needle 11 direction
Directly.Limiting section 17 is disk plate, can limit the depth of the insertion of puncture needle 11, may thereby determine that insertion position and conveniently
Operation.
Refering to what is shown in Fig. 3, the first passage 15 for being connected to 12 two sides of ventilating part is provided in puncture needle 11, in puncture needle 11
It is additionally provided with the second channel 16 for passing straight through to 13 center of mounting base.
Upper housing 2 is fixedly connected in mounting base 13.
Core group 3 includes built-in needle tubing 31, the upper silica gel sheath 32 for being socketed on built-in 31 upper end of needle tubing and is socketed on built-in needle
The lower silica gel sheath 33 of 31 lower end of pipe.Upper silica gel sheath 32 realizes the sealing between built-in needle tubing 31 and upper housing 2, and lower silica gel sheath 33 is real
Sealing between existing built-in needle tubing 31 and mounting base 13, centre are provided with one layer of liquid medicine filtering membrane 9, i.e., medical fluid is between ring rib
Filtration is flowed, but filter area is unaffected.The lower end of built-in needle tubing 31 is pyramidal structure, and inserts in folding process
Enter the upper end of second channel 16.Pyramidal structure is more stable convenient for the movement of built-in needle tubing 31 and moving direction, effectively extend into
16 upper end of second channel.
Ventilating part 12 has the first installation end 121, and bowl 4 has been plugged and fixed in the first installation end 121, and bowl 4 is opened
Mouth is fixedly connected with cyst membrane 5, and bowl 4 has the port 41 connecting with first passage 15.Air filtration is fixed on port 41
Film 7.Air-filtering membrane 7 combines to be formed using paper and PTFE.The effect of air-filtering membrane 7 was air filtering and dust or plastics
Particle.The material that liquid medicine filtering membrane 9 uses is filtered medical fluid for nylon, stops plastic grain etc..12 connecting bowl of ventilating part
After shape part 4, the gas in medical vials is not easy to reveal, and is then the cyst membrane by bowl 4 when the internal pressure in order to adjust medical vials
5 realize.That is: when the air in medical vials needs to discharge, then directly by first passage 15 through air-filtering membrane 7(prevention medical fluid)
It enters in bowl 4 and enters in bowl 4, cyst membrane 5 is heaved；When the medical fluid in medical vials is reduced, air pressure is reduced, then passes through
The cyst membrane 5 heaved is again by air return into medical vials.
Ventilating part 12 also has the second installation end 122, and the second installation end 122 is fixedly connected with another air-filtering membrane 7
And silica gel check valve 6, silica gel check valve 6 is for importing air.Medical staff needs to use by stages using medical fluid, if cyst membrane
5 when being in the rounding state limit, it is also necessary to detach medical fluid, still negative pressure can be generated in such medical vials, for this purpose, passing through
Above-mentioned setting, at this time for the internal pressure of balance medical bottle, outside air can pass through silica gel check valve 6 and air-filtering membrane 7, so
It is entered in medical vials by ventilating part 12 and first passage 15 afterwards, air reached air filtering by air-filtering membrane 7 at this time
Purpose, while meet equilibrium air pressure and safety requirement.
The upper surface of mounting base 13 and the lower surface of upper housing 2 are provided with the ring rib 131 to fit each other.Circular chart
Item is intermittent.On the one hand ring rib 131 improves the reliability of assembly, increase contact surface, be on the other hand easy for built-in needle
Residual liquor on pipe 31 or lower silica gel sheath 33 rests in mounting base 13, reduces the pollution to built-in needle tubing 31 and medical vials.
The course of work: puncture needle 11 is directly inserted into medical vials, syringe no matching is required injection needle, it is only necessary to will inject
Device is inserted into from 2 upper end of upper housing, and the end of syringe squeezes upper silica gel sheath 32 at this time, so that built-in needle tubing 31 contacts and connects
It connects the end of syringe, upper 32 deformation of silica gel sheath but can effectively seal inner passage, then built-in needle tubing 31 can also after moving down
Deep enough to arrive in second channel 16, the air in syringe or medical fluid are isolated from the outside world at this time, can smoothly enter into medical vials.
The air pressure in medical vials will increase at this time, and the air in medical vials enters ventilating part 12 by first passage 15, utilize ventilation
Portion 12 is exhausted or air-breathing, so as to equal the internal pressure in horizontal medical vials faster, reaches labour-saving purpose.Hand-held part 14 is just
In puncture needle 11 is inserted into medical vials and is fastened.
Embodiment 2:
On the basis of embodiment 1, the upper-end part of driving of upper housing 2 is thread segment, the difference from embodiment 1 is that: upper housing 2
In being provided with sealing 8 on thread segment, sealing 8 includes the anti-guard housing 81 being integrally surrounded on outside thread segment, is integrally connected to prevent
81 edge of guard housing and the sealing cover 82 for bending connection, sealing cover 82 are open for opening and closing thread segment and anti-guard housing 81.Note can be improved
The reliability of emitter connection.In addition sealing cover 82 can also protect thread segment, need using when open sealing cover 82, be not required to
Sealing cover 82 is closed when to be used, can reduce or avoid in this way thread segment to go out by air pollution.
Certainly, above is representative instance of the invention, and in addition to this, the present invention can also have other a variety of specific implementations
Mode, all technical solutions formed using equivalent substitution or equivalent transformation, is all fallen within the scope of protection of present invention.
Claims (10)
1. a kind of dispenser, characterized in that including lower case, upper housing, the core group being installed within upper housing and lower case；
The lower case includes puncture needle, integrally connects positioned at the ventilating part of integrally connected above puncture needle, above ventilating part
The mounting base that connects, positioned at mounting base two sides integrally connected for fastening the hand-held part of bottleneck, the company of being provided in the puncture needle
The first passage of ventilating part two sides is passed to, the second channel for passing straight through to mounting base center is additionally provided in the puncture needle；
The upper housing is fixedly connected in mounting base；
The core group includes built-in needle tubing, the upper silica gel sheath for being socketed on built-in needle tubing upper end and is socketed on built-in needle tubing lower end
Lower silica gel sheath, the upper silica gel sheath realizes the sealing between built-in needle tubing and upper housing, and the lower silica gel sheath realizes built-in needle
Sealing between pipe and mounting base.
2. dispenser as described in claim 1, characterized in that the ventilating part has the first installation end, and the first installation end is inserted
It connects and is fixed with bowl, the opening of the bowl is fixedly connected with cyst membrane, and bowl has the port connecting with first passage.
3. dispenser as claimed in claim 2, characterized in that the ventilating part also has the second installation end, second peace
Dress end is fixedly connected with air-filtering membrane, silica gel check valve is provided with outside air-filtering membrane, silica gel check valve is for unidirectionally importing
Air.
4. dispenser as claimed in claim 2, characterized in that first installation end is fixedly connected with air-filtering membrane.
5. dispenser as described in claim 1, characterized in that the upper surface of the mounting base and the lower surface of upper housing are all provided with
It is equipped with the ring rib to fit each other, the upper surface of mounting base is provided with liquid medicine filtering membrane.
6. dispenser as described in claim 1, characterized in that the upper end of the upper silica gel sheath and lower silica gel sheath is bellows
Structure.
7. dispenser as described in claim 1, characterized in that the lower end of the built-in needle tubing is pyramidal structure, and is being moved down
It is inserted into the upper end of second channel in the process.
8. dispenser as described in claim 1, characterized in that the upper-end part of driving of the upper housing is thread segment, the upper casing
Body includes the anti-guard housing being integrally surrounded on outside thread segment, is integrally connected in being provided with sealing, the sealing on thread segment
Anti- guard housing edge and the sealing cover for bending connection, the sealing cover is for opening and closing the thread segment and anti-guard housing opening.
9. dispenser as described in claim 1, characterized in that the lateral surface of the hand-held part is provided with several anti-skidding raised lines.
10. dispenser as described in claim 1, characterized in that be located at below ventilating part on the puncture needle and be provided with limit
Portion, the limiting section are plate-like vertical with pin puncture direction is punctured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910342408.XA CN109998918A (en) | 2019-04-26 | 2019-04-26 | A kind of dispenser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910342408.XA CN109998918A (en) | 2019-04-26 | 2019-04-26 | A kind of dispenser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109998918A true CN109998918A (en) | 2019-07-12 |
Family
ID=67174338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910342408.XA Pending CN109998918A (en) | 2019-04-26 | 2019-04-26 | A kind of dispenser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109998918A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110897885A (en) * | 2019-12-20 | 2020-03-24 | 山西医科大学 | Liquid medicine transfer adapter |
Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010029360A1 (en) * | 2000-04-10 | 2001-10-11 | Jun Miyoshi | Adapter for mixing and injection of preparations |
| US20020024036A1 (en) * | 1996-08-01 | 2002-02-28 | Rohrbough John D. | Indwelling catheter valve |
| US20070106244A1 (en) * | 2005-11-07 | 2007-05-10 | Gilero, Llc | Vented safe handling vial adapter |
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