CN208726021U - Disposable aqueous humor drawing liquid and forming injection device - Google Patents
Disposable aqueous humor drawing liquid and forming injection device Download PDFInfo
- Publication number
- CN208726021U CN208726021U CN201721210767.2U CN201721210767U CN208726021U CN 208726021 U CN208726021 U CN 208726021U CN 201721210767 U CN201721210767 U CN 201721210767U CN 208726021 U CN208726021 U CN 208726021U
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- Prior art keywords
- drawing liquid
- aqueous humor
- liquid
- component
- injection
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Abstract
The utility model discloses a kind of disposable aqueous humor drawing liquids and forming injection device comprising: drawing liquid component, including drawing liquid chamber and drawing liquid piston are provided with fluid level markings on the outer wall of the drawing liquid component at least to accommodate the aqueous humor after extracting；Injecting assembly, including injecting cavity and injection ram are shaped, at least to accommodate liquid medicine injection, the injection ram end is provided with mutually matched groove and card key structure；And component is pierced through, it is homogeneously intercommunicated with drawing liquid chamber, injecting cavity.The structure design of the utility model is reasonable, it is easy to operate, it can be achieved that aqueous humor extraction, and liquid medicine injection supplement is gone back, and when pushing injection ram to be fastened on card key in groove, keeps the injection volume of liquid medicine injection consistent with the fluid level markings of the intracavitary aqueous humor of drawing liquid, it realizes eye-chamber forming, the eye-chamber is avoided to collapse；The success rate of operation is improved, is with a wide range of applications to adjust intraocular pressure at any time and at the same time completing the operation that aqueous humor is extracted with injecting liquid drug.
Description
Technical field
The utility model relates to a kind of injection device more particularly to a kind of disposable aqueous humor drawing liquids suitable for ophthalmology injection
With forming injection device, belong to ophthalmic medical instrument technical field.
Background technique
Paracentesis is that a kind of puncture cornea enters anterior chamber, makes aqueous humor from the technology intraocularly flowed out, in clinical ophthalmology
There is important application value in research work, is mainly used in following three aspects: (1) acquisition of aqueous humor；(2) intraocular pressure is reduced；
(3) other therapeutic Application of releasing aqueous humor of anterior chamber.
But ordinary syringe syringe needle used in actual clinical work at present, as paracentesis needle, aqueous humor acquisition is then straight
It connects using 1ml syringe.But existing this single function syringe is when in use, inserting needle extracts aqueous humor, drop from corneosclera
Low intraocular pressure, is then extracted, and this single inside eye suction lesion is easy to the intraocular each tissue of damage, can be eye when serious
Ball is taken out flat.To inhale again has the syringe of medical fluid to enter vitreum from inserting needle after the velum of angle, injects drug, this solely inside eye
Also can be too small because of eyeball volume when liquid medicine injection, pressure is slightly larger also to directly affect surgical effect.Moreover the above process is needed into two
Needle is completed on two syringes, complicated for operation.And it just needs to determine the extraction amount of aqueous humor in the first needle, and is extracting the
After one needle, the operation for reducing intraocular pressure is completed, thus during subsequent injections medical fluid, medical staff can not be further according to practical feelings
Condition adjusts intraocular pressure in real time.
Utility model content
The main purpose of the utility model is to provide a kind of disposable aqueous humor drawing liquids and forming injection device, existing to overcome
There is the deficiency in technology.
For realization foregoing purpose, the technical solution adopted in the utility model includes:
The utility model embodiment provides a kind of disposable aqueous humor drawing liquid and forming injection device comprising:
Drawing liquid component comprising a drawing liquid chamber and with the mutually matched drawing liquid piston of the drawing liquid chamber, at least to hold
The aqueous humor received after extracting, wherein be provided with fluid level markings on the outer wall of the drawing liquid component；
Shape injecting assembly comprising an injecting cavity and with the mutually matched injection ram of the injecting cavity, at least use
To accommodate liquid medicine injection, wherein the injection ram end is provided with plurality of grooves and mutually matched with the groove
Card key structure；And component is pierced through, it is homogeneously intercommunicated with the drawing liquid chamber, injecting cavity.
As more one of preferred embodiment, the setting position of the groove and the position one of fluid level markings are a pair of
It answers, when pushing injection ram to be fastened on card key in groove, so that the liquid of the injection volume of liquid medicine injection and the intracavitary aqueous humor of drawing liquid
Position label is consistent.The card slot of different location is for different liquid medicine injection volumes, after injecting scheduled volume, card key
Naturally it is stuck on the shell of forming injecting assembly.
In some embodiments, the puncture component is set between drawing liquid component and forming injecting assembly, and the pumping
Liquid component, forming injecting assembly are flexibly connected with the puncture component, and the drawing liquid chamber, injecting cavity are respectively arranged at the thorn
The not ipsilateral of the fluid channel of component is worn, and is interconnected.
Further, detachable between drawing liquid chamber and pipeline in shown drawing liquid component, correspondingly, shown forming injecting assembly
It is also dismountable between middle injecting cavity and pipeline.
In some embodiments, being provided with one at the pipeline connection pierced through between component and drawing liquid chamber, injecting cavity can
Tiao Tong liquid mechanism, the adjustable Tong Ye mechanism includes a logical liquid ontology and the plectrum that is set on the logical liquid ontology, described
Liquid-passing hole road is provided in logical liquid ontology, the plectrum and logical liquid ontology, which interlock, to be arranged, and when mobile plectrum position, at least can
Drive the opening direction for adjusting liquid-passing hole road.For example, mobile plectrum makes the opening and pumping in liquid-passing hole road when needing to extract aqueous humor
Sap cavity is connected, without being connected to injecting cavity；When requiring supplementation with liquid medicine injection after extracting aqueous humor, moving plectrum again makes
The opening in liquid-passing hole road is connected to injecting cavity, without being connected to drawing liquid chamber.Setting can also avoid aqueous humor and liquid medicine injection in this way
Mixing.
In some embodiments, one is provided between the puncture component and drawing liquid chamber only to enter for aqueous humor from component is pierced through
The intracavitary check valve of drawing liquid；And be provided between puncture component and the injecting cavity one only for liquid medicine injection from injecting cavity into
Enter to pierce through the check valve of component, i.e., the setting direction of two check valves is opposite.Have the advantage that in this way: though drawing liquid chamber with
Injecting cavity shares a puncture component, also can guarantee that the liquid medicine injection of injecting cavity does not flow into drawing liquid when drawing liquid chamber draws aqueous humor
Chamber, and inject by liquid medicine injection into when piercing through component, liquid medicine injection may not flow into drawing liquid chamber.
As more one of preferred embodiment, described device further includes the drawing liquid being sheathed on the outside of the drawing liquid component
Fixation kit, the drawing liquid fixation kit include fixed ontology, and the both ends of the fixed ontology are respectively arranged with a bayonet, and one
A bayonet is arranged at the fluid level markings, and another bayonet is arranged in drawing liquid pistons end.In this way, achieving that pumping
Liquid is quantitatively volumetric void fraction, and when drawing liquid is intracavitary pumps full required aqueous humor, piston is just stuck at corresponding bayonet, volume defining,
Hereafter it when pushing injection ram, not will lead to reflux, less will lead to liquid medicine injection and enter drawing liquid chamber.
In some embodiments, the puncture component have a sharp head, and the sharp head have tend to pierce
Wear that component side is curved, radian comprising set angle.
Preferably, the set angle is obtuse angle, for example, it may be 130 °, setting so on the one hand can be to avoid operation
When want side to set about operating, on the other hand can guarantee that puncturing pleasing to the eye syringe needle is parallel to iris, avoids eye inner tissue from damaging.
Further, the length for piercing through component is less than 5mm.Specifically, the puncture component can be a model
For the syringe needle of 30G.
Further, the internal diameter ratio of the drawing liquid chamber and injecting cavity is special ratios, such as can be 1:2, in this way can be excellent
Change present apparatus volume and feel to facilitate surgical procedure.The internal diameter of injecting cavity is set greater than the intracavitary appearance of drawing liquid, advantage exists
In: because of injecting cavity pre-filling injection medical fluid when practical operation, injection ram is the end in injecting cavity at this time, will be injected
The internal diameter of chamber increase can to avoid injection ram present position it is too far caused by it is inconvenient.
Further, the liquid medicine injection is injection required for anterior chamber shapes, such as can be physiological saline, BBS
Liquid etc..
Compared with prior art, the beneficial effects of the utility model include:
The structure design of the utility model is reasonable, by the drawing liquid chamber and injecting cavity of setting connection, and shares a puncture group
Part, easy to operate, it can be achieved that the extraction of aqueous humor and liquid medicine injection supplement are gone back, realization anterior chamber's forming avoids anterior chamber from collapsing.
The utility model also injection ram end be provided with plurality of grooves and with the mutually matched card key structure of groove, groove
The position that position and fluid level markings is arranged corresponds, when pushing injection ram to be fastened on card key in groove, so that injection
The injection volume of medical fluid is consistent with the fluid level markings of the intracavitary aqueous humor of drawing liquid, realizes anterior chamber's forming, anterior chamber is avoided to collapse；And at the same time complete
It is extracted at aqueous humor and the operation of injecting liquid drug improves the success rate of operation, before having a wide range of applications to adjust intraocular pressure at any time
Scape.
Detailed description of the invention
Fig. 1 a is the structure of disposable aqueous humor drawing liquid and forming injection device among one typical embodiments of the utility model
Schematic diagram.
Fig. 1 b is the partial enlarged view of Fig. 1 a.
Fig. 2 is the structural schematic diagram of adjustable Tong Ye mechanism among one typical embodiments of the utility model.
Fig. 3 a is the knot of disposable aqueous humor drawing liquid and forming injection device among another typical embodiments of the utility model
Structure schematic diagram.
Fig. 3 b and Fig. 3 c are the partial enlarged views of Fig. 3 a.
Fig. 4 is the structural schematic diagram of drawing liquid fixation kit among one typical embodiments of the utility model.
Description of symbols: 1- drawing liquid component, 11- drawing liquid chamber, 12- drawing liquid piston, 11a- fluid level markings, 13- check valve,
2- shapes injecting assembly, 21- injecting cavity, 22- injection ram, 22a- groove, 23- check valve, 3- puncture component, the sharp head of 31-
Portion, 4- drawing liquid fixation kit, the fixed ontology of 41-, 42a, 42b- bayonet, Tong Ye mechanism that 5- is adjustable, 51- liquid-passing hole road, 52- are dialled
Piece.
Specific embodiment
In view of deficiency in the prior art, inventor is studied for a long period of time and is largely practiced, and is able to propose that this is practical new
The technical solution of type.The technical solution of the utility model is further explained below in conjunction with several examples and drawings
It is bright.
Please refer to disposable aqueous humor drawing liquid shown in Fig. 1 a- Fig. 1 b, among one typical embodiments of the utility model at
Shape injection device includes: drawing liquid component 1, forming injecting assembly 2, pierces through component 3 and be sheathed on the outside of the drawing liquid component
Drawing liquid fixation kit 4.
The drawing liquid component 1 include drawing liquid chamber 11 and with the mutually matched drawing liquid piston 12 of the drawing liquid chamber, at least use
To accommodate the aqueous humor after extracting.Wherein, it is provided with fluid level markings 11a on the outer wall of the drawing liquid component 1, is extracted for measuring
Aqueous humor volume, such as can mark as μ L, 100 μ L, 150 μ L, 200 μ L.
The forming injecting assembly 2 include injecting cavity 21 and with the mutually matched injection ram 22 of the injecting cavity, until
Less to accommodate liquid medicine injection.Wherein, the injection ram end is provided with plurality of grooves 22 and mutual with the groove
The card key structure (not identified in figure) of cooperation.The setting position of the groove 22a and the position of fluid level markings correspond, example
Card slot such as corresponding with 50 μ L, 100 μ L, 150 μ L, 200 μ L.When promotion injection ram 22 is fastened on card key in groove
When, so that the injection volume of liquid medicine injection is just consistent with the fluid level markings of the intracavitary aqueous humor of drawing liquid.The card slot of different location is to be directed to
Different liquid medicine injection volumes, after injecting scheduled volume, card key is stuck in naturally on the shell of forming injecting assembly.
The internal diameter of the injecting cavity 21 is preferably that diameter more intracavitary than drawing liquid is big, is preferably twice, and setting advantage in this way is:
Because the pre-filling injection medical fluid of injecting cavity 21 when practical operation, injection ram 22 is the end in injecting cavity 21 at this time, will
The internal diameter of injecting cavity 21 increase can to avoid injection ram present position it is too far caused by it is inconvenient.
Further, the liquid medicine injection is injection liquid required for anterior chamber shapes, and after aqueous humor extracts, will inject medicine
Liquid supplement is gone back, and can prevent the eye-chamber from collapsing, and realizes eye forming.
The puncture component 3 is set between drawing liquid component 1 and forming injecting assembly 2, the drawing liquid chamber 11, injecting cavity 21
It is respectively arranged at the not ipsilateral of the fluid channel for piercing through component 3, and is interconnected.
It please refers to shown in Fig. 4, the drawing liquid fixation kit 4 includes fixed ontology 41, the both ends of the fixed ontology 41
It is respectively arranged with a bayonet, a bayonet 42a (can also be known as upper latch notch) is arranged at the fluid level markings, such as can be right
The volume length of 50 μ L is answered, another bayonet 42b (can also be known as lower bayonet) is arranged in drawing liquid pistons end.In this way, can be real
Existing drawing liquid is quantitatively volumetric void fraction, and when drawing liquid is intracavitary pumps full required aqueous humor, drawing liquid piston is just stuck in corresponding bayonet 42b
Place, volume defining not will lead to reflux hereafter when pushing injection ram, less will lead to liquid medicine injection and enter drawing liquid chamber.
It please refers to shown in Fig. 2, is arranged at the pipeline connection pierced through between component 3 and drawing liquid chamber 11, injecting cavity 21 again
There is an adjustable Tong Ye mechanism 5, the adjustable Tong Ye mechanism 5 is including a logical liquid ontology and is set to dialling on the logical liquid ontology
Piece 52 is provided with liquid-passing hole road 51 in the logical liquid ontology, and the plectrum and logical liquid ontology, which interlock, to be arranged, when mobile plectrum position
When, at least it is able to drive the opening direction for adjusting liquid-passing hole road.For example, mobile plectrum makes liquid-passing hole when needing to extract aqueous humor
The opening in road is connected with drawing liquid chamber, without being connected to injecting cavity；When requiring supplementation with liquid medicine injection after extracting aqueous humor, then
Secondary mobile plectrum is connected to the opening in liquid-passing hole road with injecting cavity, without being connected to drawing liquid chamber.Setting can also avoid room in this way
The mixing of water and liquid medicine injection.
In addition, in order to avoid aqueous humor is mixed with liquid medicine injection, it can also be using design method shown in Fig. 3 a- Fig. 3 c, it may be assumed that
It is provided with one between puncture component 3 and the drawing liquid chamber 11 and only enters the intracavitary list of drawing liquid from component is pierced through for aqueous humor
To valve 13；And one is provided between the puncture component 3 and injecting cavity 21 and only enters puncture group from injecting cavity for liquid medicine injection
The check valve 23 of part.It has the advantage that: even if drawing liquid chamber and injecting cavity share a puncture component, also can guarantee in this way
When drawing liquid chamber draws aqueous humor, the liquid medicine injection of injecting cavity does not flow into drawing liquid chamber, and liquid medicine injection injection is being entered puncture group
When part, liquid medicine injection may not flow into drawing liquid chamber.
The puncture component 3 have a sharp head, and the sharp head have tend to pierce through component side
Radian curved, comprising set angle, wants side to set about grasping when setting on the one hand can be to avoid operation in this way by preferably 130 °
Make, on the other hand can guarantee that puncturing pleasing to the eye syringe needle is parallel to iris, avoids eye inner tissue from damaging.The puncture component 3
Length is preferably 4mm.The component that pierces through can be the syringe needle of a model 30G.
The concrete operating principle of the utility model and use operating method are as follows: before use, first in injecting cavity preliminary filling it is appropriate
Injection needed for shaping extracts aqueous humor by piercing through component using drawing liquid component later, so that aqueous humor is entered drawing liquid chamber, and measure room
Then the volume of water pushes the injection ram in forming injecting assembly again, so that liquid medicine injection is gone back by piercing through component supplement, lead to
The cooperation for crossing groove and card key is consistent the amount of liquid medicine injection with the amount for extracting aqueous humor, in this way, can collapse to avoid the eye-chamber
It falls into, realizes eye-chamber forming.
By drawing liquid chamber and injecting cavity that above-mentioned technical proposal, the utility model are connected to by setting, and shares one and wear
Component is pierced, easy to operate, it can be achieved that the extraction of aqueous humor and liquid medicine injection supplement are gone back, realization eye-chamber forming avoids the eye-chamber from collapsing
It falls into.The utility model also injection ram end be provided with plurality of grooves and with the mutually matched card key structure of groove, it is recessed
The setting position of slot and the position of fluid level markings correspond, when pushing injection ram to be fastened on card key in groove, so that
The injection volume of liquid medicine injection is consistent with the fluid level markings of the intracavitary aqueous humor of drawing liquid, realizes eye-chamber forming, the eye-chamber is avoided to collapse；And it is same
When complete that aqueous humor extracts and the operation of injecting liquid drug improves the success rate of operation to adjust intraocular pressure at any time, have and widely answer
Use prospect.
It should be understood that the above descriptions are merely preferred embodiments of the present invention, it is not limited to practical
Novel, for those skilled in the art, the present invention may have various modifications and changes.It is all in the utility model
Within spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the protection scope of the utility model
Within.
Claims (7)
1. a kind of disposable aqueous humor drawing liquid and forming injection device, characterized by comprising:
Drawing liquid component comprising a drawing liquid chamber and with the mutually matched drawing liquid piston of the drawing liquid chamber, at least to accommodate take out
Aqueous humor after taking, wherein be provided with fluid level markings on the outer wall of the drawing liquid component；
Shape injecting assembly comprising an injecting cavity and with the mutually matched injection ram of the injecting cavity, at least to hold
Receive liquid medicine injection, wherein the injection ram end be provided with plurality of grooves and with the mutually matched card key of the groove
Structure, the setting position of the groove and the position of fluid level markings correspond, recessed when pushing injection ram to be fastened on card key
When in slot, so that the injection volume of liquid medicine injection is consistent with the fluid level markings of the intracavitary aqueous humor of drawing liquid；
And component is pierced through, the puncture component is set between drawing liquid component and forming injecting assembly, and the drawing liquid component,
Forming injecting assembly is flexibly connected with the puncture component, and the drawing liquid chamber, injecting cavity are respectively arranged at the puncture component
Fluid channel it is not ipsilateral, and be interconnected；
It is provided with an adjustable Tong Ye mechanism at the pipeline connection pierced through between component and drawing liquid chamber, injecting cavity, it is described adjustable
Tong Ye mechanism includes a logical liquid ontology and the plectrum that is set on the logical liquid ontology, is provided with logical liquid in the logical liquid ontology
Duct, the plectrum and logical liquid ontology, which interlock, to be arranged, and when mobile plectrum position, is at least able to drive and is adjusted opening for liquid-passing hole road
Mouth direction；Alternatively, being provided with one between the puncture component and drawing liquid chamber, only for aqueous humor, from component is pierced through, to enter drawing liquid intracavitary
Check valve is provided with one and only enters the unidirectional of puncture component from injecting cavity for liquid medicine injection between the puncture component and injecting cavity
Valve.
2. disposable aqueous humor drawing liquid according to claim 1 and forming injection device, it is characterised in that: described device is also wrapped
The drawing liquid fixation kit being sheathed on the outside of the drawing liquid component is included, the drawing liquid fixation kit includes fixed ontology, the fixation
The both ends of ontology are respectively arranged with a bayonet, and a bayonet is arranged at the fluid level markings, another bayonet card
Set on drawing liquid pistons end.
3. disposable aqueous humor drawing liquid according to claim 1 and forming injection device, it is characterised in that: the puncture component
With a sharp head, and the sharp head is curved, comprising set angle with puncture component side is tended to
Radian.
4. disposable aqueous humor drawing liquid according to claim 3 and forming injection device, it is characterised in that: the set angle
For obtuse angle.
5. disposable aqueous humor drawing liquid according to claim 3 and forming injection device, it is characterised in that: the puncture component
Length be less than 5mm.
6. disposable aqueous humor drawing liquid according to any one of claims 1-5 and forming injection device, it is characterised in that: institute
The internal diameter for stating injecting cavity is greater than the internal diameter of drawing liquid chamber.
7. disposable aqueous humor drawing liquid according to claim 1 and forming injection device, it is characterised in that: the liquid medicine injection
Injection needed for being shaped for anterior chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721210767.2U CN208726021U (en) | 2017-09-20 | 2017-09-20 | Disposable aqueous humor drawing liquid and forming injection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721210767.2U CN208726021U (en) | 2017-09-20 | 2017-09-20 | Disposable aqueous humor drawing liquid and forming injection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208726021U true CN208726021U (en) | 2019-04-12 |
Family
ID=66022512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721210767.2U Expired - Fee Related CN208726021U (en) | 2017-09-20 | 2017-09-20 | Disposable aqueous humor drawing liquid and forming injection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208726021U (en) |
-
2017
- 2017-09-20 CN CN201721210767.2U patent/CN208726021U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190412 |
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| CF01 | Termination of patent right due to non-payment of annual fee |