CN106730169B - injection device for ocular injection - Google Patents
injection device for ocular injection Download PDFInfo
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- CN106730169B CN106730169B CN201611167515.6A CN201611167515A CN106730169B CN 106730169 B CN106730169 B CN 106730169B CN 201611167515 A CN201611167515 A CN 201611167515A CN 106730169 B CN106730169 B CN 106730169B
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- syringe
- syringe needle
- aqueous humor
- injection
- needle
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/19—Syringes having more than one chamber, e.g. including a manifold coupling two parallelly aligned syringes through separate channels to a common discharge assembly
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F9/00—Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
- A61F9/0008—Introducing ophthalmic products into the ocular cavity or retaining products therein
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- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Veterinary Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Anesthesiology (AREA)
- Hematology (AREA)
- Ophthalmology & Optometry (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention discloses a kind of injection device for ocular injection, the injection device includes syringe, and syringe includes syringe and plunger, and the inner chamber leading portion of syringe includes the aqueous humor chamber and medicinal liquid cavity isolated by dividing plate.The front end face of syringe is provided with the first syringe needle and the second syringe needle.The first check valve for being used for making the two in the first syringe needle to aqueous humor cavity direction one-way conduction is provided between first syringe needle and aqueous humor chamber, the second check valve for being used for making the two in medicinal liquid cavity to the second syringe needle direction one-way conduction is provided between the second syringe needle and medicinal liquid cavity.The above-mentioned injection device for ocular injection, pulls plunger, and aqueous humor can enter aqueous humor chamber from the first syringe needle.Aqueous humor and decoction isolation, not in contact with.Then plunger is promoted, decoction then enters in vitreum.The above-mentioned injection device for ocular injection, completed to extract the operation of aqueous humor and liquid medicine injection by same syringe, and two kinds of operations can be changed at any time, not interfere with each other, and to adjust intraocular pressure at any time, protect patient health.
Description
Technical field
The present invention relates to field of surgical, especially, is related to a kind of injection device for ocular injection.In addition, this
Invention further relates to a kind of injection device for including above-mentioned compound syringe needle.
Background technology
When treating some eye diseases, it usually needs to ocular injection medication.During injection, first consolidated with empty syringe from angle
Inserting needle extracts aqueous humor at film, reduces intraocular pressure, then extracts.The syringe for having decoction inserting needle after corneal limbus will be inhaled again to enter
Vitreum, inject medicine.Said process is needed into two pins, is completed on two syringes, complex operation.And in the first pin
Extraction amount with regard to aqueous humor need to be determined, and after the first pin is extracted, complete to reduce the operation of intraocular pressure, thus in subsequent injections decoction
During, medical personnel can not adjust intraocular pressure in real time further according to actual conditions.
The content of the invention
The invention provides a kind of injection device for ocular injection, with cumbersome, the nothing that solves ocular injection medication
Method adjusts the technical problem of intraocular pressure in real time.
The technical solution adopted by the present invention is as follows：
The invention provides a kind of injection device for ocular injection, injection device includes syringe, and syringe includes
Syringe and the plunger being arranged in syringe, the inner chamber leading portion of syringe include the aqueous humor chamber and medicinal liquid cavity isolated by dividing plate, aqueous humor chamber
Communicated with medicinal liquid cavity with the inner chamber back segment of syringe.The front end face of syringe is provided with and connected with aqueous humor chamber to extract the first pin of aqueous humor
Head, and connect with medicinal liquid cavity the second syringe needle with liquid medicine injection.
It is provided between first syringe needle and aqueous humor chamber and is used to make the two the of the first syringe needle to aqueous humor cavity direction one-way conduction
One check valve, it is provided between the second syringe needle and medicinal liquid cavity and is used to make the two the of medicinal liquid cavity to the second syringe needle direction one-way conduction
Two check valves.
Further, dividing plate is symmetrical arranged along the axially arranged of syringe, aqueous humor chamber and medicinal liquid cavity on dividing plate.
Further, the rear end of dividing plate is outside the stroke of plunger.
Further, the barrel dliameter of the inner chamber leading portion of syringe is less than the barrel dliameter of back segment, and inner chamber back segment is the lift area of plunger.
Further, syringe is provided with the scale for measuring liquid volume in aqueous humor chamber and medicinal liquid cavity respectively.
Further, the pin of the first syringe needle obstructs main body along the axially arranged of syringe, sophisticated to the direction away from the second syringe needle
Bending, the second syringe needle are less than the second syringe needle along the axially arranged of syringe, the needle point of the first syringe needle with the distance of syringe front end face
The distance of needle point and syringe front end face.
Further, the tip of the first syringe needle and the angle of the second syringe needle are 30~35 °, a diameter of the 0.58 of the first syringe needle
~0.62 millimeter, the pin stalk principal length of the first syringe needle is 0.75~1 centimetre, and sophisticated length is 5~7 millimeters, the second syringe needle
A diameter of 1.5~2 centimetres, the pin of the second syringe needle stalk length is 1.5~2 centimetres.
Further, the pin stalk main body of the first syringe needle is provided with flexible pipe close to syringe one end.
Further, the first syringe needle is arranged on the first joint connected with aqueous humor chamber, and the second syringe needle is arranged on and decoction
On second joint of chamber connection.First check valve is arranged in the first joint or in the interface of the first syringe needle, and the second check valve is set
Put in the second joint or in the interface of the second syringe needle.
Further, the installation direction of the first check valve and the second check valve is on the contrary, the first check valve and the second check valve
It is straight check valve.
Straight check valve includes valve body, valve element and spring, and valve element and spring are arranged in the valve pocket of valve body, and spring is by valve element
The cavity wall of valve pocket is pressed in, to control the opening and closing of valve pocket.
The invention has the advantages that：The above-mentioned injection device for ocular injection, can be by the first syringe needle by medicine
Syringe guiding decoction is overturn after liquid inhalation syringe and flows into medicinal liquid cavity, or when the second check valve is arranged in the second syringe needle,
Remove the second syringe needle and decoction is directly sucked into medicinal liquid cavity.Then by the first syringe needle and the second syringe needle inserting needle, plunger is pulled, due to the
The effect of two check valves, intravitreous liquid can't enter medicinal liquid cavity, and aqueous humor can enter aqueous humor chamber from the first syringe needle.Room
Water and decoction isolation, not in contact with.Then plunger is promoted, due to the effect of the first check valve, aqueous humor will not also be back to angle Gong
In film, and decoction then enters in vitreum.During liquid medicine injection, if finding, ocular hypertension or aqueous humor extraction amount are very few,
Piston can be pulled on, extracts aqueous humor adjustment intraocular pressure.After intraocular pressure is adjusted, plunger is promoted to complete injecting liquid drug.It is above-mentioned to be used for
The injection device of ocular injection, completed to extract the operation of aqueous humor and liquid medicine injection by same syringe, and two kinds of operations can
Change, do not interfere with each other at any time, to adjust intraocular pressure at any time, protect patient health.
In addition to objects, features and advantages described above, the present invention also has other objects, features and advantages.
Below with reference to figure, the present invention is further detailed explanation.
Brief description of the drawings
The accompanying drawing for forming the part of the application is used for providing a further understanding of the present invention, schematic reality of the invention
Apply example and its illustrate to be used to explain the present invention, do not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the injection device schematic diagram for ocular injection of the preferred embodiment of the present invention；
Fig. 2 is the injection device partial structural diagram for ocular injection of the preferred embodiment of the present invention；
Fig. 3 is the straight check valve schematic diagram of the preferred embodiment of the present invention.
Description of reference numerals：100th, syringe；200th, plunger；300th, dividing plate；400th, aqueous humor chamber；500th, medicinal liquid cavity；600th, it is straight
Logical check valve；
410th, the first syringe needle；420th, the first check valve；430th, the first joint；440th, flexible pipe；
510th, the second syringe needle；520th, the second check valve；530th, the second joint；
610th, valve body；620th, valve element；630th, spring；640th, valve pocket.
Embodiment
Embodiments of the invention are described in detail below in conjunction with accompanying drawing, but the present invention can be defined by the claims
Implement with the multitude of different ways of covering.
Reference picture 1~2, the preferred embodiments of the present invention provide a kind of injection device for ocular injection, injection dress
Put includes syringe 100 and the plunger 200 being arranged in syringe 100, the inner chamber leading portion bag of syringe 100 including syringe, syringe
Include the aqueous humor chamber 400 and medicinal liquid cavity 500 isolated by dividing plate 300, aqueous humor chamber 400 and medicinal liquid cavity 500 with behind the inner chamber of syringe 100
Duan Xiangtong.The front end face of syringe 100 is provided with and connected with aqueous humor chamber 400 to extract the first syringe needle 410 of aqueous humor, and and medicinal liquid cavity
500 connections are with the second syringe needle 510 of liquid medicine injection.It is provided between first syringe needle 410 and aqueous humor chamber 400 and is used to make the two first
Syringe needle 410 is provided with to the first check valve 420 of the direction one-way conduction of aqueous humor chamber 400 between second syringe needle 510 and medicinal liquid cavity 500
For making the two in the second check valve 520 of the direction one-way conduction of the syringe needle of medicinal liquid cavity 500 to the second 510.
Aqueous humor chamber 400 and medicinal liquid cavity 500 are arranged on the leading portion of syringe 100, and the two isolates for part.Aqueous humor chamber 400 and medicine
Sap cavity 500 is the chamber do not closed, and its front end connects with corresponding syringe needle respectively, rear end it is unclosed with behind the inner chamber of syringe 100
Duan Xiangtong.In use, decoction can be sucked into aqueous humor chamber 400 by the first syringe needle 410, syringe is afterwards turned over by decoction through syringe
100 inner chamber back segment enters decoction room.When the second check valve 520 is arranged in the second syringe needle 510, the second pin can also be removed
Decoction is directly sucked medicinal liquid cavity 500 by first 510.Possible mode in wherein two is only enumerated above, it is clear that also has other modes.
The distance and specification of first syringe needle 410 and the second syringe needle 510, respective design can be carried out according to operational requirements, with the two insertion phase
Position is answered not cause damage to be advisable.After the first syringe needle 410 inserts corneosclera and the second syringe needle 510 insertion vitreum, it can draw
Dynamic plunger 200, due to the effect of the second check valve 520, intravitreous liquid can't enter medicinal liquid cavity 500, and aqueous humor can
Enter aqueous humor chamber 400 from the first syringe needle 410, adjust intraocular pressure.It is downward due to being generally front end during syringe use, thus aqueous humor and
Decoction is isolated, not in contact with.After the completion of intraocular pressure regulation is initially believed that, plunger 200 can be promoted, due to the first check valve 420
One-way conduction is acted on, and aqueous humor will not be also back in corneosclera, and decoction then enters in vitreum through the second syringe needle 510.It can be seen that
It is relatively independent operation to extract aqueous humor and liquid medicine injection, can't be influenced each other.Plunger 200 is pulled to extract aqueous humor, is promoted
Plunger 200 is liquid medicine injection.A certain operation is carried out, then another operation stops immediately.During liquid medicine injection, if finding intraocular pressure
Too high or aqueous humor extraction amount is very few, then can pull on piston, extracts aqueous humor adjustment intraocular pressure.Complete to extract by same syringe
The operation of aqueous humor and liquid medicine injection, it is easy to operate, the labor intensity of medical personnel can be reduced.And two kinds of operations can turn at any time
Change, do not interfere with each other, to adjust intraocular pressure at any time, protect patient health.The requirement to medical personnel's qualification can be reduced simultaneously,
Once aqueous humor need not be extracted in place.Syringe may be designed to disposable or recyclable nonexpondable syringe.
The invention has the advantages that：The above-mentioned injection device for ocular injection, it can be incited somebody to action by the first syringe needle 410
Syringe guiding decoction is overturn after decoction inhalation syringe and flows into medicinal liquid cavity 500, or when the second check valve 520 is arranged on the second pin
When in first 510, remove the second syringe needle 510 and decoction is directly sucked into medicinal liquid cavity 500.Then by the first syringe needle 410 and the second syringe needle
510 inserting needles, plunger 200 is pulled, due to the effect of the second check valve 520, intravitreous liquid can't enter medicinal liquid cavity
500, and aqueous humor can enter aqueous humor chamber 400 from the first syringe needle 410.Aqueous humor and decoction isolation, not in contact with.Then plunger is promoted
200, due to the effect of the first check valve 420, aqueous humor will not be also back in corneosclera, and decoction then enters in vitreum.
During liquid medicine injection, if finding, ocular hypertension or aqueous humor extraction amount are very few, can pull on piston, extract aqueous humor adjustment eye
Pressure.After intraocular pressure is adjusted, plunger 200 is promoted to complete injecting liquid drug.The above-mentioned injection device for ocular injection, by same
Syringe is completed to extract the operation of aqueous humor and liquid medicine injection, and two kinds of operations can be changed at any time, not interfere with each other, to adjust at any time
Intraocular pressure is saved, protects patient health.
Alternatively, reference picture 1~2, dividing plate 300 is axially arranged along syringe 100, aqueous humor chamber 400 and medicinal liquid cavity 500 on
Dividing plate 300 is symmetrical arranged.Dividing plate 300 is axially arranged along syringe 100, compared to the dividing plate 300 of abnormity, aqueous humor chamber 400 and decoction
The shape of chamber 500 is regular, and liquid is not easy to remain, and when such as entering decoction from aqueous humor chamber 400, never the decoction of part can enter medicinal liquid cavity
In 500, at the same be easy to use after the completion of, syringe is cleaned.In general, the aqueous humor amount of extraction and the decoction injected
Volume is close, and aqueous humor chamber 400 and medicinal liquid cavity 500 are symmetrical arranged on dividing plate 300, during aqueous humor is extracted can intuitively comparing take out
The aqueous humor and the volume size of decoction taken, the amount for the aqueous humor for also needing to extract, syringe easy to operation can be estimated.
Alternatively, reference picture 1~2, the rear end of dividing plate 300 is outside the stroke of plunger 200.The design can avoid injecting
Plunger 200 and dividing plate 300 collide during decoction, so as to avoid plunger 200 or dividing plate 300 from damaging, influence the sealing of plunger 200 or every
Plate 300 ruptures.
Alternatively, reference picture 1~2, the barrel dliameter of the inner chamber leading portion of syringe 100 are less than the barrel dliameter of back segment, and inner chamber back segment is post
The lift area of plug 200.The barrel dliameter of the inner chamber leading portion of syringe 100 is slightly less than the barrel dliameter of back segment so that plunger 200 can not enter pin
The inner chamber leading portion of cylinder 100.And the design causes the better tightness of plunger 200.
Alternatively, reference picture 1~2, syringe 100 is provided with measures liquid volume in aqueous humor chamber 400 and medicinal liquid cavity 500 respectively
Scale.Because aqueous humor chamber 400 and the isolation of medicinal liquid cavity 500 are set, therefore the volume of the two interior liquid may be different, set carve respectively
Degree, it can accurately measure the volume of corresponding intracavity liquid.Preferably, it can be provided with the wall of syringe 100 of syringe 100 and be used to distinguish room
The mark of water cavity 400 and medicinal liquid cavity 500.The design can intuitively distinguish the two, during avoiding use, mix up aqueous humor chamber 400
With medicinal liquid cavity 500.
Alternatively, reference picture 1~2, the pin of the first syringe needle 410 obstructs main body along the axially arranged of syringe 100, sophisticated to remote
The direction bending of second syringe needle 510, the second syringe needle 510 is along the axially arranged of syringe 100, the needle point and syringe of the first syringe needle 410
The distance of 100 front end faces is less than the needle point of the second syringe needle 510 and the distance of the front end face of syringe 100.The point of first syringe needle 410
Divide bending, the overall length of the first syringe needle 410 is less than the length of the second syringe needle 510 so that the second syringe needle 510 enters vitreum
While, the first syringe needle 410 meets human engineering mechanics with suitable oblique angle inserting needle.Except the tip portion of the first syringe needle 410
Outside, the first syringe needle 410 and the second syringe needle 510 are easy to control and exerted a force along the axially arranged of syringe 100, the design, be advantageous into
Pin.The bending tip of first syringe needle 410 can be obtained by the first originally straight directly bending of syringe needle 410.
Alternatively, reference picture 1~2, tip and the angle of the second syringe needle 510 of the first syringe needle 410 are 30~35 °, first
A diameter of 0.58~0.62 millimeter of syringe needle 410, the pin stalk principal length of the first syringe needle 410 is 0.75~1 centimetre, sophisticated length
Spend for 5~7 millimeters, a diameter of 1.5~2 centimetres of the second syringe needle 510, the pin stalk length of the second syringe needle 510 is 1.5~2 centimetres.
The design is more beneficial for the first syringe needle 410 and the inserting needle of the second syringe needle 510, avoids that corneosclera or vitreum are caused to damage.
Alternatively, reference picture 1~2, the pin stalk main body of the first syringe needle 410 are provided with flexible pipe 440 close to the one end of syringe 100.It is soft
Pipe 440 can be that soft tube, the settings of flexible pipe 440 such as silicone tube cause when syringe 100 rocks in use, point
Dividing to rock.Moreover, flexible pipe can be bent, therefore the actual inserting needle angle at tip can be adjusted during inserting needle within the specific limits
Degree.
Because flexible pipe 440 is softer, therefore pin stalk main body need to be held and be not provided with the position of flexible pipe 440 by sophisticated inserting needle, flexible pipe
440, which are arranged on pin, obstructs main body close to the one end of syringe 100, is easy to exert a force.It is much cleaner meanwhile handgrip part is from needle point farther out.
Alternatively, reference picture 1~2, the first syringe needle 410 are arranged on the first joint 430 connected with aqueous humor chamber 400, the
Two syringe needles 510 are arranged on the second joint 530 connected with medicinal liquid cavity 500.First check valve 420 is arranged on the first joint 430
In interior or the first syringe needle 410 interface, the second check valve 520 is arranged on 530 interior or the second syringe needle 510 interface of the second joint
It is interior.
The front end of syringe 100 is provided with the first joint 430 and the second joint 530, and the first joint 430 connects with aqueous humor chamber 400,
Second joint 530 connects with medicinal liquid cavity 500.First syringe needle 410 can be directly set on the first joint 430 in a conventional manner,
Second syringe needle 510 can be directly set on the second joint 530 in a conventional manner.First syringe needle 410, the second syringe needle 510 and pin
Cylinder 100 is split-type design, reduces technique manufacture difficulty.First check valve 420 is arranged in the first joint 430 or the first syringe needle
In 410 interface, the second check valve 520 is arranged in the second joint 530 or in the interface of the second syringe needle 510, can be achieved single
To the function of conducting.To ensure health, the first syringe needle 410 and the second syringe needle 510 generally may be designed to disposable product.It is preferred that
Ground, the first check valve 420 are arranged in the first joint 430, and the second check valve 520 is arranged in the second joint 530.The design makes
Respective one-way valve, thus simple in construction, low manufacture cost need not be set by obtaining the first syringe needle 410 and the second syringe needle 510, reduced and abandoned
Cost.And syringe 100 can be reused by sterilizing, therefore reduce use cost.
Alternatively, the installation direction of reference picture 1~3, the first check valve 420 and the second check valve 520 is on the contrary, first is unidirectional
The check valve 520 of valve 420 and second is straight check valve 600.Straight check valve 600 includes valve body 610, valve element 620 and spring
630, valve element 620 and spring 630 are arranged in the valve pocket 640 of valve body 610, and valve element 620 is pressed in the chamber of valve pocket 640 by spring 630
Wall, to control the opening and closing of valve pocket 640.
The installation direction of first check valve 420 and the second check valve 520 is opposite so that the first syringe needle 410 and the second syringe needle
510 conducting direction is opposite.For ease of description, valve body 610 is divided for entrance point and the port of export, actually entrance point and the port of export
Structure can be with completely the same.Valve element 620 is pressed in the cavity wall of inner chamber by spring 630, and liquid enters from entrance point promotes valve element 620 will
Spring 630 compresses, and valve element 620 can not block cavity wall completely, so that inner chamber turns on, conversely, liquid enters from the port of export, and valve
Core 620 will be pressed on cavity wall so that inner chamber is closed.Above-mentioned straight check valve 600 is simple in construction, good airproof performance.It is preferred that valve body 610
For sphere structure.The check valve of the design, good airproof performance are simple in construction.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (9)
1. a kind of injection device for ocular injection, it is characterised in that the injection device includes syringe, the syringe
Including syringe (100) and the plunger (200) being arranged in the syringe (100), the inner chamber leading portion of the syringe (100) include by
The aqueous humor chamber (400) and medicinal liquid cavity (500) of dividing plate (300) isolation, the aqueous humor chamber (400) and the medicinal liquid cavity (500) with
The inner chamber back segment of the syringe (100) communicates；The front end face of the syringe (100) be provided with connected with the aqueous humor chamber (400) with
The first syringe needle (410) of aqueous humor is extracted, and the second syringe needle (510) with liquid medicine injection is connected with the medicinal liquid cavity (500)；Institute
The needle cylinder wall for stating syringe (100) is provided with the mark for being used for distinguishing the aqueous humor chamber (400) and the medicinal liquid cavity (500)；
Between first syringe needle (410) and the aqueous humor chamber (400) be provided be used for make the two in first syringe needle (410) extremely
The first check valve (420) of aqueous humor chamber (400) direction one-way conduction, second syringe needle (510) and the medicinal liquid cavity
(500) it is provided between and is used to make the two the second of the medicinal liquid cavity (500) to the second syringe needle (510) direction one-way conduction
Check valve (520)；The rear end of the dividing plate (300) is outside the stroke of the plunger (200).
2. the injection device according to claim 1 for ocular injection, it is characterised in that the dividing plate (300) is along institute
The axially arranged of syringe (100) is stated, the aqueous humor chamber (400) and the medicinal liquid cavity (500) are symmetrically set on the dividing plate (300)
Put.
3. the injection device according to claim 1 for ocular injection, it is characterised in that the syringe (100) it is interior
The barrel dliameter of chamber leading portion is less than the barrel dliameter of back segment, and the inner chamber back segment is the lift area of the plunger (200).
4. the injection device according to claim 1 for ocular injection, it is characterised in that the syringe (100) is provided with
The scale of the aqueous humor chamber (400) and the medicinal liquid cavity (500) interior liquid volume is measured respectively.
5. the injection device according to claim 1 for ocular injection, it is characterised in that first syringe needle (410)
Pin obstruct main body along the axially arranged of the syringe (100), tip is bent to the direction away from second syringe needle (510), institute
The second syringe needle (510) is stated along the axially arranged of the syringe (100), needle point and the syringe of first syringe needle (410)
(100) distance of front end face is less than the needle point of second syringe needle (510) and the distance of the syringe (100) front end face.
6. the injection device according to claim 5 for ocular injection, it is characterised in that first syringe needle (410)
It is sophisticated be 30~35 ° with the angle of second syringe needle (510), a diameter of the 0.58~0.62 of first syringe needle (410)
Millimeter, the pin stalk principal length of first syringe needle (410) is 0.75~1 centimetre, and sophisticated length is 5~7 millimeters, described the
A diameter of 1.5~2 centimetres of two syringe needles (510), the pin stalk length of second syringe needle (510) is 1.5~2 centimetres.
7. the injection device according to claim 5 for ocular injection, it is characterised in that first syringe needle (410)
Pin stalk main body be provided with flexible pipe (440) close to the syringe (100) one end.
8. according to the injection device according to any one of claims 1 to 7 for ocular injection, it is characterised in that described
One syringe needle (410) is arranged on the first joint (430) connected with the aqueous humor chamber (400), and second syringe needle (510) is set
On the second joint (530) connected with the medicinal liquid cavity (500)；First check valve (420) is arranged on described first and connect
In head (430) or in the interface of the first syringe needle (410), second check valve (520) is arranged in second joint (530)
Or second syringe needle (510) interface in.
9. the injection device according to claim 8 for ocular injection, it is characterised in that first check valve
(420) and second check valve (520) installation direction on the contrary, first check valve (420) and second check valve
(520) it is straight check valve (600)；
The straight check valve (600) includes valve body (610), valve element (620) and spring (630), the valve element (620) and described
Spring (630) is arranged in the valve pocket (640) of the valve body (610), and the valve element (620) is pressed in institute by the spring (630)
The cavity wall of valve pocket (640) is stated, to control the opening and closing of the valve pocket (640).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611167515.6A CN106730169B (en) | 2016-12-16 | 2016-12-16 | injection device for ocular injection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611167515.6A CN106730169B (en) | 2016-12-16 | 2016-12-16 | injection device for ocular injection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106730169A CN106730169A (en) | 2017-05-31 |
| CN106730169B true CN106730169B (en) | 2018-03-09 |
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| CN201611167515.6A Active CN106730169B (en) | 2016-12-16 | 2016-12-16 | injection device for ocular injection |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019196175A1 (en) * | 2018-04-11 | 2019-10-17 | 中山大学中山眼科中心 | Liquid sample collection apparatus with valve |
| US20220000661A1 (en) * | 2018-10-26 | 2022-01-06 | Singapore Health Services Pte Ltd | Device and method for opthalmic extraction and injection |
| CN111388186A (en) * | 2020-03-30 | 2020-07-10 | 中国人民解放军陆军特色医学中心 | Medicine dispensing device |
| CN112618152B (en) * | 2020-12-14 | 2022-02-08 | 中国人民解放军总医院 | Viscoelastic agent and perfusate integrated injection device capable of measuring intraocular pressure |
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| CN202355620U (en) * | 2011-11-09 | 2012-08-01 | 张大微 | Medical aspirator |
| CN202554234U (en) * | 2012-05-12 | 2012-11-28 | 张贵兰 | Injecting-aspirating apparatus for eye surgery |
| CN203183131U (en) * | 2013-04-21 | 2013-09-11 | 张艳芳 | Synchronous equivalent infusion-aspiration syringe for ophthalmologic operation |
| CN205268380U (en) * | 2016-01-12 | 2016-06-01 | 马先祯 | Haustorium is annotated to synchronous ophthalmology of electrified machine |
| CN105582601A (en) * | 2016-03-26 | 2016-05-18 | 黄敬远 | Multifunctional combined double-tube syringe |
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