CN203107865U - Medicine injection device - Google Patents
Medicine injection device Download PDFInfo
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- CN203107865U CN203107865U CN 201320064031 CN201320064031U CN203107865U CN 203107865 U CN203107865 U CN 203107865U CN 201320064031 CN201320064031 CN 201320064031 CN 201320064031 U CN201320064031 U CN 201320064031U CN 203107865 U CN203107865 U CN 203107865U
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- bottle
- syringe
- trocar
- pin
- injection device
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Abstract
The utility model relates to the field of medical instruments and discloses a medicine injection device. The medicine injection device is specially used for a medicine bottle. The medicine injection device comprises a bottle body, wherein the inner wall of the bottle body is a straight cylinder, a piston is arranged at a position, close to a bottle mouth, inside the bottle body, a push plate is arranged in the piston in a covering mode, and a needle guiding hole is formed in the center of the push plate. The medicine injection device is characterized by further comprising an injection tube, wherein an inner needle located in the injection tube is arranged at the bottom of the injection tube, a trocar needle is arranged outside the inner needle, the diameter of the trocar needle is larger than the diameter of the needle guiding hole, the needle head of the inner needle stretches out of the trocar needle, the tail portion of the inner needle is communicated with an outlet of the injection tube, an outer needle is arranged on the outlet of the injection tube, and the inner wall of the injection tube is in clearance fit with the outer edge of the bottle mouth.
Description
Technical field
This utility model relates to medical instruments field, particularly a kind of medical injection device.
Background technology
As everyone knows, common pharmaceutical bottle has ampoule bottle, cillin bottle, cassette bottle etc.
Ampoule bottle is with flame sealed glass bottle, be usually used in depositing the medicine of injection and vaccine, serum etc., its cleaning, drying sterilization and filling process maturation, sealing in the fill adopted the flame heat ampoule cervical region of liquid drug, after treating its thawing, make the ampoule bottle sealing with the wire drawing sealing process.But because it seals the employing flame heat, can not be applicable to nonrefractory property medicine; On the other hand in the embedding process, thereby exist because high temperature causes that the medicinal liquid chemical reaction influences the risk of drug quality.In use, need cut bottleneck, free-hand break into two with one's hands or hard device is opened the ampoule bottleneck with emery wheel, utilize the medicine in the syringe pump ampoule bottle to inject, syringe directly contacts medicine.As easy as rolling off a log emery wheel end and the chips of glass that causes sticking at bottle wall fallen in the medicine bottle in the formulation operations process, the toxicity medicinal liquid directly contacts with formulator skin and causes infection, ampoule bottle opening procedure herb liquid contacts with outside air, has the secondary pollution problem, and the dosage of its product of producing is limited.
How cillin bottle is because gaining the name with the early stage penicillin of its splendid attire, and cillin bottle claims soda-lime glass injection bottle processed again, is the ampoule that a kind of plug seals.Kinds such as brown, transparent are arranged, be generally glass material, its neck part is thinner, the following thickness unanimity of bottleneck, and bottleneck slightly is coarser than bottleneck, slightly is narrower than body, can be used as the iodine tincture bottle, injection bottle, oral liquid bottle etc.When using as injection bottle, similar with ampoule bottle, the formulation operations process is loaded down with trivial details, need utilize the medicine in the syringe pump cillin bottle to inject, in with the medicine process in the syringe pump cillin bottle be difficult to the sucking-off medicinal liquid owing to produce a negative pressure in the bottle, need to strengthen extracting force, allow produce negative pressure in the needle tubing and when standing upside down medicinal liquid suck needle tubing, but extracting moment has and can cause air to suck needle tubing, has the secondary pollution problem.
Cassette bottle bottleneck is equipped with plug and seals with aluminium lid, and afterbody seals with rubber piston, is similar to the glass syringe of prepackage medicinal liquid, and other is furnished with injection bilateral guide pin syringe needle and push rod.Use guide pin syringe needle penetrates the bottleneck plug, and push rod is put on the rubber piston of bottle afterbody firmly, and medicinal liquid injects human body under the pressure of piston.Since cassette bottle back piston not by aluminium lid with wiper seal, the medicinal liquid expansion very easily makes piston come off when the high temperature sterilize, genus can't carry out the terminal sterilization product.Cassette bottle use medicinal liquid does not contact with any parts of syringe, secondary pollution problem when having solved injection.But because the cassette bottle is the nonterminal sterilising prods, its afterbody seals with rubber piston, can slide again during use, causes the reliability technological requirement height of its sealing, and production cost is big, and the production dosage form selection is limited to.
In sum, ampoule bottle, the corresponding medical injection device of cillin bottle are ordinary syringe, and can there be the secondary pollution problem of medicinal liquid in ordinary syringe; The similar syringe that does not have push rod of cassette bottle, the secondary pollution problem of medicinal liquid when having solved injection, still, the cassette bottle is the nonterminal sterilising prods, sealing problem and the production cost problem of having brought medicinal liquid to store again.
Summary of the invention
The purpose of this utility model is to propose a kind of medical injection device, is applicable to special-purpose pharmaceutical bottle, secondary pollution problem in the time of can solving injection.
In order to achieve the above object, this utility model is achieved by the following technical solutions.
A kind of medical injection device, be used for special-purpose pharmaceutical bottle, the pharmaceutical bottle of this special use comprises that inwall is the bottle of straight tube, be provided with piston near bottleneck in the described bottle, be coated with push pedal in the piston, the push pedal center offers guide pinhole, it is characterized in that, described medical injection device comprises syringe, and the bottom of syringe is provided with the pin that is positioned at syringe, and interior pin is outside equipped with trocar; Described trocar diameter is greater than described guide pinhole; The syringe needle of pin stretches out outside the described trocar in described, and the afterbody of interior pin is communicated with the outlet of described syringe, and the outlet of described syringe is provided with outer pin; The outer matched in clearance of the inner tubal wall of described syringe and described bottleneck.
The characteristics of technique scheme and further the improvement are:
Pin and trocar are matched in clearance in described, and the trocar two ends are respectively arranged with the ventilation breach or near two ends passage are set respectively.
Pin and outer pin are the double needle that is connected as a single entity in described.
Be provided with the guide pin bushing of matched in clearance in the described syringe, described trocar slides and runs through described guide pin bushing, the outer of the described bottleneck of guide pin bushing cuff.
Described syringe is the tubulose frame.
Medical injection device of the present utility model is used for special-purpose pharmaceutical bottle, and the bottle inwall of the pharmaceutical bottle of this special use is straight tube, is provided with piston near bottleneck in the bottle, is coated with push pedal in the piston, and the push pedal center offers guide pinhole; The bottleneck operated by rotary motion has sealing rubber stopper and capping.The bottom of the syringe of this device is provided with the pin that is positioned at syringe, interior pin is outside equipped with trocar, the trocar diameter is greater than guide pinhole, the syringe needle of interior pin stretches out outside the trocar, the afterbody of interior pin is communicated with the outlet of syringe, the outlet of syringe is provided with outer pin, the outer matched in clearance of the inner tubal wall of syringe and bottleneck.
During use, elder generation's breakdown capping, slide along the inner tubal wall of syringe in the outer of bottleneck, interior pin and trocar be pierces through rubber stopper respectively, along with the propelling of bottle, interior pin pierces through piston again and contacts medicament by guide pinhole, and trocar promotes piston by push pedal, medicament goes out by interior pin and outer faller gill, thereby realizes the injection of medicament.Like this, medicament contact probability with the external world in injection process is littler.When interior pin and outside pin when being the double needle that is connected as a single entity, medicament thoroughly is hedged off from the outer world in injection process, secondary pollution problem when having solved drug injection better.
This utility model is compared with injection device with traditional pharmaceutical bottle, has following tangible construction features: (1) bottle inwall is for the straight tube of circle, and with the supporting use of piston, folk prescription is to opening mouth, and is open-minded with difference cassette bottle twocouese.(2) be coated with push pedal in the piston, can penetrate water flowing with interior pin, to distinguish pot type piston.(3) pushing away the version centre has guide pinhole, and interior pin diameter is beneficial to interior pin break-through piston less than guide pinhole; The guide pinhole diameter stops trocar to pass less than trocar, so just has the function that push pedal promotes piston-advance.(4) interior pin is longer than trocar, grows part greater than piston thickness, touches medicinal liquid with pin in guaranteeing.(5) syringe can design handle so that operation is used.Syringe bottom band pore is so that bottle pushes.(6) positioning sleeve is sliding positioning sleeve.Said structure characteristics of the present invention make the fill of medicine bottle and injection that the change improvement take place: (1) liquid drug can directly be injected in the body.(2) fill water can irrigate for surgery.When (3) joining the cillin bottle powder, utilize the back pressure type principle pigment drug solns suck-back can be gone into bottle, human body reinjects.The improvement of these several the property changed all need not need gnotobasis to make up a prescription by means of common needle tubing, can directly inject and reduce the secondary pollution problem in the human body.
Description of drawings
Below in conjunction with the drawings and specific embodiments this utility model is described in further details.
Fig. 1 is for being used for the structural representation of a kind of pharmaceutical bottle of the present utility model;
Fig. 2 is the structural representation of a kind of injection device of the present utility model;
Fig. 3 is pharmaceutical bottle and the fit structure sketch map of injection device among Fig. 1;
Among the figure: 1, bottle; 2, piston; 3, push pedal; 4, rubber stopper; 5, aluminum capping; 6, medicament; 7, syringe; 8, trocar; 9, interior pin; 10, guide pin bushing.
The specific embodiment
With reference to Fig. 1, for being used for a kind of pharmaceutical bottle of the present utility model, comprise that mainly inwall is the bottle 1 of straight tube and the bottleneck of band outer.Wherein, bottleneck is provided with sealing with rubber stopper 4 and aluminum capping 5, is provided with piston 2 near bottleneck in the bottle 1, and piston 2 adopts the medical grade rubber material to make, and is coated with push pedal 3 in the piston 2 fully, and push pedal 3 centers offer guide pinhole.Piston 2 centers are respectively arranged with big mouthful of outside horn mouth near push pedal 3 both sides.Horn mouth near push pedal 3 outsides makes things convenient for guide pin and puncture; Horn mouth near push pedal 3 inboards makes things convenient for the suction fully of medicament.Guide pinhole forms for big mouthful of two outside horn mouth butt joints.
Need to prove, the bottle that pharmaceutical bottle of the present utility model also can be straight tube, the covering of bottleneck is not limited to the aluminum capping, also can be plastic closure.
With reference to Fig. 2, Fig. 3, the fit structure of injection device and pharmaceutical bottle is described.Wherein, injection device comprises syringe 7, and syringe 7 also can be the tubulose frame.Present embodiment adopts syringe 7, and the bottom of syringe 7 is provided with the pin 9 that is positioned at syringe 7, and interior pin 9 is outside equipped with trocar 8; The effect of interior pin 9 and trocar 8 is difference pierces through rubber stopper.When the propelling of bottle 1, interior pin 8 pierces through piston 2 again, and through guide pinhole contact medicament, and trocar 9 promotes piston 2 against the push pedal outside, medicament is discharged by interior pin 9; Therefore, require trocar 9 diameters greater than the guide pinhole diameter at piston 2 places, certainly interior pin 9 diameters are less than the diameter of guide pinhole; And the syringe needle of pin 9 stretches out outside the trocar 8 in requiring, and can sting piston 2 again by guide pinhole, the contact medicament.
The afterbody of interior pin 9 is communicated with the outlet of syringe 1, and the outlet of syringe 1 is provided with outer needle adapter, and outer pin (meaning not shown in the figures) can be installed.Another kind of preferred version is that interior pin 9 and outer pin are the double needle that is connected as a single entity.When interior pin 9 and outside pin when being the double needle that is connected as a single entity, medicament thoroughly is hedged off from the outer world in injection process, the secondary pollution problem when having solved drug injection better.
In the present embodiment, be provided with the guide pin bushing 10 of matched in clearance in the syringe 7, trocar 8 slides and runs through guide pin bushing 10, the outer of guide pin bushing 10 cuff bottlenecks.Syringe 7 and guide pin bushing 10 matched in clearance, bottle pushes in the syringe 7 easily like this; In the replacement scheme, the two can also be to be slidingly matched, and needing improved is to offer steam vent in syringe 7 bottoms; Certainly, syringe 7 is the tubulose frame, just need not to consider exhausting problem.
During use, elder generation's breakdown aluminum capping, the outer cuff of bottleneck is in guide pin bushing 10, and bottle 1 slides along the inner tubal wall of syringe 7, and interior pin 9 and trocar 8 be pierces through rubber stopper 4 respectively, propelling along with bottle 1, interior pin 9 pierces through piston 2 again, and by guide pinhole contact medicament, and trocar 8 is against push pedal 3 and promote piston 2, medicament goes out by interior pin 9 and outer faller gill, thereby realizes the injection of medicament.Like this, medicament contact probability with the external world in injection process is littler.When interior pin 9 and outside pin when being the double needle that is connected as a single entity, medicament thoroughly is hedged off from the outer world in injection process, secondary pollution problem when having solved drug injection better.
In addition, need to prove that the pharmaceutical bottle of present embodiment is not limited to the filling liquid medicament, also can be powder, after solvent fills and dissolves powder, and can be with reference to the injecting method of aforesaid liquid medicament.Especially need explanation to be, when the pharmaceutical bottle fill solvent of present embodiment, during cillin bottle fill powder, can realize that also solvent does not all contact with the external world with powder, the secondary pollution problem when preventing from making up a prescription; Concrete operations are, utilize pharmaceutical bottle and the injection device of present embodiment, interior pin is inserted cillin bottle, promote bottle, solvent injects cillin bottle mixed dissolution powder, unclamp bottle, the pigment drug solns can automatic suck-back under the back-pressure effect be gone into bottle, when the pharmaceutical bottle of present embodiment and cillin bottle pressure reach balance, extracts interior pin, interior pin can draws ambient air, can be injected directly into human body then.Therefore, utilize pharmaceutical bottle and the injection device of present embodiment, it makes up a prescription and injects and does not need to carry out under the gnotobasis; In other words, utilize pharmaceutical bottle and the injection device of present embodiment, can save the dispense chamber that basic unit or rural hospital set up standard.
Although below by reference to the accompanying drawings embodiment of the present utility model is described, this utility model is not limited to above-mentioned specific embodiments, and above-mentioned specific embodiments only is schematic, guiding, rather than restrictive.Those of ordinary skill in the art under the situation that does not break away from the scope that this utility model claim protects, can also make a variety of forms under the enlightenment of this description, these all belong to the row of this utility model protection.
Claims (5)
1. medical injection device, be used for special-purpose pharmaceutical bottle, the pharmaceutical bottle of this special use comprises that inwall is the bottle of straight tube, be provided with piston near bottleneck in the described bottle, be coated with push pedal in the piston, the push pedal center offers guide pinhole, it is characterized in that, described medical injection device comprises syringe, and the bottom of syringe is provided with the pin that is positioned at syringe, and interior pin is outside equipped with trocar; Described trocar diameter is greater than described guide pinhole; The syringe needle of pin stretches out outside the described trocar in described, and the afterbody of interior pin is communicated with the outlet of described syringe, and the outlet of described syringe is provided with outer pin; The outer matched in clearance of the inner tubal wall of described syringe and described bottleneck.
2. medical injection device according to claim 1 is characterized in that, described interior pin and trocar are matched in clearance, and the trocar two ends are respectively arranged with the ventilation breach or near two ends passage are set respectively.
3. medical injection device according to claim 1 is characterized in that, described interior pin and outer pin are the double needle that is connected as a single entity.
4. medical injection device according to claim 1 is characterized in that, is provided with the guide pin bushing of matched in clearance in the described syringe, and described trocar slides and runs through described guide pin bushing, the outer of the described bottleneck of guide pin bushing cuff.
5. medical injection device according to claim 1 is characterized in that, described syringe is the tubulose frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320064031 CN203107865U (en) | 2013-01-31 | 2013-01-31 | Medicine injection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320064031 CN203107865U (en) | 2013-01-31 | 2013-01-31 | Medicine injection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203107865U true CN203107865U (en) | 2013-08-07 |
Family
ID=48888248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320064031 Expired - Lifetime CN203107865U (en) | 2013-01-31 | 2013-01-31 | Medicine injection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203107865U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014117691A1 (en) * | 2013-01-31 | 2014-08-07 | Ding Yiling | Medicinal cefoxitin vial, and dispensing apparatus and injection apparatus thereof |
-
2013
- 2013-01-31 CN CN 201320064031 patent/CN203107865U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014117691A1 (en) * | 2013-01-31 | 2014-08-07 | Ding Yiling | Medicinal cefoxitin vial, and dispensing apparatus and injection apparatus thereof |
| US10188584B2 (en) | 2013-01-31 | 2019-01-29 | Yiling DING | Medicinal xiding vial and dispensing apparatus and injection apparatus thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130807 |
|
| CX01 | Expiry of patent term |