CN110236784A - Aqueous humor acquisition device - Google Patents
Aqueous humor acquisition device Download PDFInfo
- Publication number
- CN110236784A CN110236784A CN201910591476.XA CN201910591476A CN110236784A CN 110236784 A CN110236784 A CN 110236784A CN 201910591476 A CN201910591476 A CN 201910591476A CN 110236784 A CN110236784 A CN 110236784A
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- CN
- China
- Prior art keywords
- pipe close
- puncture needle
- aqueous humor
- sucking tube
- liquid sucking
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Classifications
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- 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
- A61F9/007—Methods or devices for eye surgery
- A61F9/00736—Instruments for removal of intra-ocular material or intra-ocular injection, e.g. cataract instruments
-
- 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
- A61F9/007—Methods or devices for eye surgery
- A61F9/00781—Apparatus for modifying intraocular pressure, e.g. for glaucoma treatment
Abstract
The invention discloses a kind of aqueous humor acquisition devices, comprising: outer barrel, including puncture needle installation end and liquid sucking tube installation end；Puncture needle is fixedly installed in puncture needle installation end and including puncture needle inner end and puncture needle outer end；Liquid sucking tube component, the pipe close including liquid sucking tube and for sealing liquid sucking tube nozzle；Wherein, the periphery wall of liquid sucking tube component is equipped with the annular stop part that annular groove and hoop annular groove are arranged, the radial outer end of annular stop part abuts outer barrel internal perisporium, smooth contact is formed between the radially outer edge portion and outer barrel internal perisporium of pipe close and is equipped with the pipe close exhaust passage being arranged along the extending direction of outer barrel barrel chamber, barrel chamber regional connectivity pipe close exhaust passage of the outer barrel barrel chamber between pipe close and puncture needle installation end.By using aqueous humor acquisition device of the invention, safety and reliability during puncture of anterior chamber can be improved, and can be improved the subsequent accuracy to aqueous humor detection.
Description
Technical field
The present invention relates to medical apparatus technical fields, and in particular, to a kind of aqueous humor acquisition device.
Background technique
Anterior chamber of eyeball's centesis be it is a kind of by instrument pierce through cornea so that aqueous humor outflow medical technology, in ophthalmology
There is important application value in clinical research work, being mainly used in, which reduces intraocular pressure, aqueous humor acquisition and other therapeutic anterior chamber, puts
Liquid.
For now, the implementation of paracentesis of anterior chamber has no unified special equipment and consumptive material, in actual clinical work
Mostly using 1ml syringe needle as paracentesis needle.But during being punctured using the 1ml syringe needle, aqueous humor
Drainage speed it is more difficult to control, when tapping is too fast, the rapid decrease of intraocular pressure can be caused, when more serious even can cause other simultaneously
Send out disease.Further, since the aqueous humor in syringe cavity is further transferred to microcentrifugal tube after aqueous humor acquisition,
Therefore in the process, will cause the waste of aqueous humor, and exist contacted in transfer process with external environment due to aqueous humor and
The risk being contaminated, so as to cause testing result there are deviation, reliability is poor.
It can be seen that needing to develop one kind at this stage is able to solve existing safety during puncture of anterior chamber and can
By novel acquisition device of property the problems such as poor.
Summary of the invention
In view of the above drawbacks of the prior art or insufficient, the present invention provides a kind of aqueous humor acquisition devices, before can be improved
Safety and reliability when room punctures, and improve the subsequent detection accuracy for aqueous humor.
To achieve the above object, the present invention provides a kind of aqueous humor acquisition device, the aqueous humor acquisition device includes:
Outer barrel, including puncture needle installation end and liquid sucking tube installation end；
Puncture needle, be fixedly installed in the puncture needle installation end and be equipped be located at outer barrel barrel chamber in puncture needle inner end and
Puncture needle outer end outside the outer barrel barrel chamber；
Liquid sucking tube component, including be inserted into outer barrel barrel chamber and can be moved along axial plug from the liquid sucking tube installation end
Dynamic liquid sucking tube and it is arranged in the outer barrel barrel chamber with the pipe close for sealing liquid sucking tube nozzle；
Wherein, the periphery wall of the liquid sucking tube component is equipped with the annular limit of the setting of annular groove described in annular groove and hoop
Position part, the radial outer end of the annular stop part abut outer barrel internal perisporium, the radially outer edge portion of the pipe close and the outer cylinder
Smooth contact is formed between internal peripheral wall and is equipped with the pipe close exhaust passage being arranged along the extending direction of the outer barrel barrel chamber, institute
State pipe close exhaust passage described in barrel chamber regional connectivity of the outer barrel barrel chamber between the pipe close and the puncture needle installation end.
Optionally, the pipe close be equipped with along the axially extending of the outer barrel barrel chamber and along the circumferential direction of the pipe close successively between
Every multiple pipe close exhaust passages of arrangement.
Optionally, the pipe close exhaust groove as the pipe close exhaust passage is formed on the periphery wall of the pipe close, it should
Pipe close exhaust groove is equipped with the slot opening towards radial outside.
Optionally, the channel peripheral wall of the pipe close exhaust passage is closing peripheral wall.
Optionally, cross section semicircular in shape shape, square configuration or the arcuate shape of the pipe close exhaust passage.
Optionally, the pipe close includes pipe close central part for sealing the liquid sucking tube nozzle and is located in the pipe close
The radial outside of center portion and the pipe close outer portion for being equipped with the pipe close exhaust passage, the pipe close outer portion are formed at least partially as
Loose ventilation device.
Optionally, the end of the pipe close, which is equipped with, punctures guide hole for guide that the puncture needle inner end penetrates, described
The outer contour shape of puncture needle inner end is mutually matched with the shape for puncturing guide hole.
Optionally, peripheral wall exhaust clearance is equipped between the liquid sucking tube and outer barrel internal perisporium, the outer barrel barrel chamber exists
Barrel chamber region, the pipe close exhaust passage and the peripheral wall exhaust clearance between the pipe close and the puncture needle installation end according to
Secondary connection.
Optionally, the periphery wall of the puncture needle inner end is equipped with the peripheral wall water outlet being connected to the needle cavity of the puncture needle
Hole.
Optionally, the puncture needle inner end is additionally provided with the needle cavity along the axial apopore being axially connected to, the peripheral wall
The axial spacing at the hole center of apopore and the hole center of the axial apopore is no more than 3mm.
In the present invention, by the way that pipe close exhaust passage is arranged in the radially outer edge portion of pipe close, atmospheric environment and outer can be made
Barrel chamber regional connectivity of the cylinder barrel chamber between pipe close and puncture needle installation end avoids forming aeroembolism and shadow in outer barrel barrel chamber
The smooth plug for ringing liquid sucking tube component, to improve use reliability.In addition, liquid sucking tube component is due to setting in drainage process
There is pipe close and liquid sucking tube lumen is made to be in negative pressure state, when puncture needle inner end punctures pipe close with by aqueous humor drainage to liquid sucking tube pipe
When chamber, as the amount of liquid in lumen gradually increases, the difference of intraluminal pressure and preceding intra-atrial pressure power is gradually reduced, so that room
The drainage speed of water gradually decreases, to avoid the occurrence of the dangerous situation of intraocular pressure rapid drawdown, greatly improves safety.Furthermore it is adopting
After collection, liquid sucking tube component can integrally be extracted from outer barrel barrel chamber, and directly the aqueous humor in liquid sucking tube is detected,
It need not make further transfer, therefore the aqueous humor that can avoid in lumen is contacted with external environment, guarantees the pure of aqueous humor collected
Degree, to improve the accuracy of subsequent detection.
Other features and advantages of the present invention will the following detailed description will be given in the detailed implementation section.
Detailed description of the invention
The drawings are intended to provide a further understanding of the invention, and constitutes part of specification, with following tool
Body embodiment is used to explain the present invention together, but is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the perspective view of the aqueous humor acquisition device in a specific embodiment of the invention；
Fig. 2 is the main view of the aqueous humor acquisition device in Fig. 1；
Fig. 3 is main sectional view of the aqueous humor acquisition device when puncture needle does not puncture pipe close in Fig. 2；
Fig. 4 is that the aqueous humor acquisition device in Fig. 3 is equipped with the main sectional view prevented when puncturing separator；
Fig. 5 is the cross sectional view of the aqueous humor acquisition device in Fig. 1；
Fig. 6 is equipped with structural schematic diagram when peripheral wall apopore for the puncture needle of the aqueous humor acquisition device in Fig. 3；
Fig. 7 is that the pipe close of the aqueous humor acquisition device in Fig. 3 is equipped with that peripheral wall is open and the pipe close exhaust passage of semicircular in shape
When structural schematic diagram；
Fig. 8 be Fig. 3 in aqueous humor acquisition device pipe close be equipped with peripheral wall it is open and be in half rectangle pipe close exhaust passage
When structural schematic diagram；
When Fig. 9 is that the pipe close of the aqueous humor acquisition device in Fig. 3 is equipped with peripheral wall closed and rounded pipe close exhaust passage
Structural schematic diagram；
When Figure 10 is that the pipe close of the aqueous humor acquisition device in Fig. 3 is equipped with peripheral wall closed and arc-shaped pipe close exhaust passage
Structural schematic diagram；
The structural representation when liquid sucking tube and support pipe support that Figure 11 is the aqueous humor acquisition device in Fig. 3 are connected by a snap
Figure；
Figure 12 is that the liquid sucking tube of the aqueous humor acquisition device in a specific embodiment of the invention is integrally formed out convex dot shape
Structural schematic diagram when retention bead；
Figure 13 is integrally formed out undulatory for the liquid sucking tube of the aqueous humor acquisition device in a specific embodiment of the invention
Structural schematic diagram when retention bead；
Figure 14 is that the liquid sucking tube of the aqueous humor acquisition device in a specific embodiment of the invention is cased with pipe sleeve part and limit outside
Structural schematic diagram when protrusion is in convex dot shape；
Figure 15 is that the liquid sucking tube of the aqueous humor acquisition device in a specific embodiment of the invention is cased with pipe sleeve part and limit outside
Structural schematic diagram when protrusion is corrugated；
Figure 16 is that the liquid sucking tube of the aqueous humor acquisition device in a specific embodiment of the invention is cased with pipe sleeve part and limit outside
Structural schematic diagram when protrusion is in helical teeth shape；
Figure 17 is that the support pipe support of the aqueous humor acquisition device in a specific embodiment of the invention is integrally formed out convex dot shape
Retention bead when structural schematic diagram；
Figure 18 is that the support pipe support of the aqueous humor acquisition device in a specific embodiment of the invention is integrally formed out corrugated
Retention bead when structural schematic diagram；
Figure 19 is that the support pipe support of the aqueous humor acquisition device in a specific embodiment of the invention is integrally formed out helical teeth shape
Retention bead when structural schematic diagram；
Figure 20 is that the support pipe support housing of the aqueous humor acquisition device in a specific embodiment of the invention has pipe sleeve part and limit
Structural schematic diagram when position protrusion is in convex dot shape；
Figure 21 is that the support pipe support housing of the aqueous humor acquisition device in a specific embodiment of the invention has pipe sleeve part and limit
Structural schematic diagram when position protrusion is corrugated；
Figure 22 is that the support pipe support housing of the aqueous humor acquisition device in a specific embodiment of the invention has pipe sleeve part and limit
Structural schematic diagram when position protrusion is in helical teeth shape.
Description of symbols:
100 aqueous humor acquisition devices
1 outer barrel, 2 puncture needle
3 liquid sucking tube component, 4 needle stand
5 prevent puncturing 6 retention bead of separator
The soft set of 7 needle cap 8
11 separator inserting groove, 21 peripheral wall apopore
22 31 liquid sucking tubes of axial apopore
32 support 33 pipe closes of pipe support
34 pipe sleeve part, 35 annular groove
36 groove venthole, 37 annular stop part
311 liquid sucking tube card slot, 321 pipe support buckle
322 pipe supports buckle 331 pipe close exhaust passage of button
332 puncture guide hole
Specific embodiment
Specific embodiments of the present invention are described in detail below in conjunction with attached drawing.It should be understood that described herein
Specific embodiment be merely to illustrate and explain the present invention, be not intended to restrict the invention.
Below with reference to the accompanying drawings aqueous humor acquisition device according to the present invention is described.
As shown in Fig. 1 to Figure 16, the exemplary embodiment of the present invention provides a kind of aqueous humor acquisition device 100, the aqueous humors
Acquisition device 100 includes outer barrel 1, puncture needle 2 and liquid sucking tube component 3.Outer barrel 1 is equipped with the puncture needle peace positioned at axial ends
Fill end and liquid sucking tube installation end.Puncture needle 2 is fixedly installed in puncture needle installation end and is equipped with the puncture being located in outer barrel barrel chamber
Needle inner end and the puncture needle outer end outside outer barrel barrel chamber.Liquid sucking tube component 3 includes being inserted into outer cylinder from liquid sucking tube installation end
It can be used in body barrel chamber and in outer barrel barrel chamber seal liquid sucking tube pipe along the liquid sucking tube 31 moved and setting is axially plugged
The pipe close 33 of mouth.Wherein, the confficient of static friction between pipe close 33 and outer barrel internal perisporium is μ 1, pipe close 33 and liquid sucking tube nozzle it
Between confficient of static friction be μ 2, and meet: 1 < μ 2 of μ.Alternatively, pipe close 33 can be interval in the setting of outer barrel internal perisporium, to guarantee
Pipe close 33 is not in contact with each other with outer barrel internal perisporium.
When carrying out puncture of anterior chamber using the aqueous humor acquisition device 100 in exemplary embodiment of the present invention, liquid can will be adopted
Tube assembly 3 is elapsed towards puncture needle inner end, so that puncture needle inner end is inserted into liquid sucking tube lumen after puncturing soft set 8 and pipe close 33
In, the aqueous humor in anterior chamber is drained to liquid sucking tube lumen by puncture needle outer end and puncture needle inner end.In this collection process,
Since liquid sucking tube nozzle is sealed by pipe close 33, liquid sucking tube lumen always is in a state of negative pressure, but with the amount of liquid in lumen by
Cumulative more, the difference of intraluminal pressure and preceding intra-atrial pressure power is gradually reduced, therefore the drainage speed of aqueous humor can be made to gradually decrease, from
And the dangerous situation of intraocular pressure rapid drawdown is avoided the occurrence of, greatly improve the safety of puncture drainage.
Further, after aqueous humor acquisition, liquid sucking tube component 3 can integrally be extracted from outer barrel barrel chamber, then
Liquid sucking tube 31 is directly placed in progress specific project detection in particular detection instrument, compared with prior art, without to acquisition
Aqueous humor afterwards makees further transfer, therefore the aqueous humor that can avoid in liquid sucking tube lumen is contacted with external environment, guarantees collected
The degree of purity of aqueous humor to improve the accuracy and reliability of subsequent detection, and can be avoided due to caused by transfer aqueous humor
Waste.
Further, since define confficient of static friction μ 1 between pipe close 33 and outer barrel internal perisporium be less than pipe close 33 with it is described
Confficient of static friction between liquid sucking tube nozzle is μ 2, or pipe close 33 is interval in the setting of outer barrel internal perisporium, it is ensured that is being incited somebody to action
When liquid sucking tube component 3 is integrally extracted from outer barrel barrel chamber, pipe close 33 securely blocks liquid sucking tube nozzle always, thus more reliable
Ground guarantees the degree of purity of aqueous humor collected.
In some embodiments, when pipe close 33 and outer barrel internal perisporium contact with each other, preferably to avoid pipe close 33 de-
It falls, will be preferably arranged between pipe close 33 and outer barrel internal perisporium through smooth face contact.For example, can be outside by the diameter of pipe close 33
End face or outer barrel inner peripheral wall are set as shiny surface, or simultaneously by the radial outer end face of pipe close 33 and outer barrel inner peripheral wall
It is set as shiny surface.
In some embodiments, aqueous humor acquisition device 100 includes radial along outer barrel barrel chamber for limiting liquid sucking tube component 3
The anti-rock structure of displacement.Under such configuration, it is ensured that liquid sucking tube component 3 plug moving process in be only axially moveable without
It will appear radial shaking, not only can guarantee that puncture needle inner end punctures pipe close 33 accurately to be inserted into liquid sucking tube in puncture process
In lumen, moreover it is possible to guarantee steadily to extract liquid sucking tube component 3 after aqueous humor acquires, to avoid the intraluminal aqueous humor of liquid sucking tube
Leakage, to further increase the accuracy and reliability of subsequent detection.
As shown in Figure 3 and Figure 4, anti-rock structure may include the annular groove being formed on the periphery wall of liquid sucking tube component 3
35 and the annular stop part 37 that is arranged of hoop annular groove 35, the radial outer end of the annular stop part 37 abut outer barrel inner circumferential
Wall.It should be noted that annular stop part 37 is in addition to that can prevent the radial of liquid sucking tube component 3 from shaking so that in puncture process
Puncture needle inner end is more accurate when puncturing pipe close 33 and prevents other than deviation, moreover it is possible to suitably increase the plug of liquid sucking tube component 3
Resistance allows the operator to experience certain passage feel, thus avoid by liquid sucking tube component 3 towards puncture needle inner end
It causes to puncture not accurate situation due to passage excessive velocities when passage, and then avoids puncture needle inner end that from cannot being inserted into and adopt liquid
In pipe lumen, that is, effectively improve the stability and reliability of puncture drainage process.In addition, can also prevent in aqueous humor acquisition dress of taking
Liquid sucking tube component 3 isolates and falls off with outer barrel when setting 100, to improve the reliability of product.Preferably, settable multiple groups annular
Groove 35 and corresponding annular stop part 37, to obtain better effect.
To reduce production difficulty and reducing production cost, annular stop part 37 can be preferably arranged to be easily obtained, is cheap
The elastic tape or other elastic rings of object beauty, and formed between annular stop part 37 and outer barrel internal perisporium made of the elastic material
Elastic Contact can avoid excessive friction and wear outer barrel internal perisporium.
Further, can the recess sidewall of annular groove 35 be formed with along outer barrel barrel chamber axially through groove it is logical
Stomata 36 enables barrel chamber region of the outer barrel barrel chamber between pipe close 33 and puncture needle installation end to pass through the groove venthole
36 are connected to atmospheric environment, and the smooth plug of liquid sucking tube component 3 is influenced to avoid the formation aeroembolism in outer barrel barrel chamber, thus
Improve the use reliability of aqueous humor acquisition device 100.
As shown in Figure 12 to Figure 16, anti-rock structure may also include from the periphery wall of liquid sucking tube component 3 or out of outer barrel
The retention bead 6 of peripheral wall protrusion, the radial both ends of the retention bead 6 are separately connected the periphery wall and outer barrel of liquid sucking tube component 3
Internal perisporium, to prevent liquid sucking tube component 3 from generating radial shaking.
When the periphery wall of liquid sucking tube component 3 is arranged in retention bead 6, retention bead 6 can be integrally formed in liquid sucking tube
On 31 periphery wall.Alternatively, the pipe sleeve part 34 being coated on the periphery wall of liquid sucking tube 31 can be set in liquid sucking tube component 3, and
Retention bead 6 is arranged on the periphery wall of pipe sleeve part 34, since pipe sleeve part 34 is knockdown pieces, can reuse,
And the difficulty that retention bead 6 is molded on pipe sleeve part 34 is relatively smaller, is more advantageous to reduction production cost.
Further, elastic tube external member can be set by pipe sleeve part 34, to prevent liquid sucking tube 31 from making by radial limit
Used time is ruptured due to rigid contact, to reduce the risk of aqueous humor leakage.
In some embodiments, anti-rock structure may include the multiple retention beads 6 being circumferentially successively intervally arranged, and can protect
It demonstrate,proves liquid sucking tube 31 and outer barrel barrel chamber is coaxially disposed, to guarantee that liquid sucking tube 31 is moved along axial smooth plug.Further, since phase
Exhaust clearance is formed between the multiple retention beads 6 being mutually spaced, outer barrel barrel chamber is between puncture needle installation end and pipe close 33
Barrel chamber region can by the exhaust clearance be connected to atmospheric environment, thus avoid in outer barrel barrel chamber formed aeroembolism and influence to adopt
The smooth plug of liquid pipe component 3.For example, referring to Figure 12 and Figure 14, the multiple retention beads 6 being circumferentially successively intervally arranged can be set
It is set in convex dot shape.
Alternatively, in some embodiments, retention bead 6 can also extend continuously in a circumferential molding.When retention bead 6 is formed in
When outer barrel internal perisporium, it is preferably formed with exhaust clearance between retention bead 6 and the periphery wall of liquid sucking tube component 3, to avoid
Form aeroembolism.When retention bead 6 is formed in the periphery wall of liquid sucking tube component 3, between retention bead 6 and outer barrel internal perisporium
It is preferably formed with exhaust clearance.For example, referring to Figure 13, Figure 15 and Figure 16, extending continuously in a circumferential molding retention bead 6 can
It is set as corrugated or helical teeth shape.
For the plug stability for further increasing liquid sucking tube component 3, no matter retention bead 6 is pipe along liquid sucking tube component 3
Length direction is successively spaced setting, or is extended continuously molding along pipe range direction, it is preferably to which ground is by retention bead 6 along pipe range direction
Total span be set as the half not less than liquid sucking tube pipe range.In other words, when retention bead 6 is in the arrangement number on pipe range direction
When measuring enough, it can avoid forming balance pivot on the periphery wall of liquid sucking tube component 3, to be more reliably prevented from liquid sucking tube group
Part 3 radially shakes.
In some embodiments, liquid sucking tube component 3 further includes the support pipe support 32 for liquid sucking tube 31 to be fixedly mounted.Herein
, can be by anti-rock structure setting between the periphery wall and outer barrel internal perisporium of support pipe support 32 under structure, such as can refer to figure
17 to shown in Figure 22.The support pipe support 32 can preferably improve the stability of liquid sucking tube component 3 and can reduce liquid sucking tube
The risk that component 3 is ruptured due to being collided or pressing passage.
Due to after aqueous humor acquires, needing individually to take out liquid sucking tube, thus liquid sucking tube 31 and support pipe support 32 it
Between connection type to meet the requirement of stability and fast assembling-disassembling simultaneously.Preferably, between liquid sucking tube 31 and support pipe support 32
Fixation can be fixed or snapped connection by being spirally connected.
For example, referring to Figure 11, it is connected by a snap between liquid sucking tube 31 and support pipe support 32, when needing to insert liquid sucking tube 31
When in support pipe support 32, liquid sucking tube 31 is elapsed to the right, until pipe support buckle 321 is caught in liquid sucking tube card slot 311
So that liquid sucking tube 31 and support pipe support 32 mutually buckle locking.When needing to take out liquid sucking tube 31, pressable pipe support buckles button
322, so that 321 lifting of pipe support buckle to be detached from liquid sucking tube card slot 311, can quickly take liquid sucking tube 31 from support pipe support 32
Out.
In some embodiments, aqueous humor acquisition device 100 further includes the needle stand 4 for puncture needle 2 to be fixedly mounted.Wherein,
Puncture needle outer end is stretched out from needle stand outer end and puncture needle inner end is stretched out from needle stand inner end, and needle stand inner end and puncture needle installation end
Between formed fast insert-pull connection, installation difficulty is advantageously reduced, to improve assembly efficiency.For example, needle stand inner end and puncture
Screw thread grafting or buckle grafting can be formed between needle installation end.
In some embodiments, aqueous humor acquisition device 100 further includes preventing puncturing separator 5, this prevents that puncturing separator 5 is used for
Along the axial that puncture needle inner end and pipe close 33 is mutually isolated of outer barrel barrel chamber, to prevent in unused aqueous humor acquisition device 100
Puncture needle inner end punctures pipe close 33 in the case where carrying out puncture of anterior chamber, i.e., the failure before being not used of effective avoiding device.For example,
In transit or when medical staff's maloperation, which can prevent aqueous humor acquisition device 100 from failing.When
So, in order to not influence the normal puncture drainage of aqueous humor acquisition device 100, anti-will puncture separator 5 and be set as knockdown pieces, into
Before row punctures, it can will prevent that puncturing separator 5 removes.
For example, referring to Fig. 4, separator inserting groove 11 can be set in the peripheral wall of outer barrel 1, and make the separator inserting groove
11 and barrel chamber region of the outer barrel barrel chamber between puncture needle inner end and pipe close 33 be interconnected, it is anti-to puncture separator 5 and pass through
The separator inserting groove 11 is inserted into the barrel chamber region, is placed between puncture needle inner end and pipe close 33, thus by puncture needle
Inner end and pipe close 33 are mutually isolated.When needing dismounting to prevent puncturing separator 5, it can quickly be pulled out from separator inserting groove 11
Out, it operates quite convenient.
In some embodiments, as shown in Figure 7 to 10, preferably to avoid forming aeroembolism and shadow in outer barrel barrel chamber
The smooth plug of liquid sucking tube component 3 is rung, the extending direction setting along outer barrel barrel chamber can be formed in the radially outer edge portion of pipe close 33
Pipe close exhaust passage 331, barrel chamber region of the outer barrel barrel chamber between pipe close 33 and puncture needle installation end can pass through the pipe close
Peripheral wall exhaust clearance between exhaust passage 331 and above-mentioned liquid sucking tube 31 and outer barrel internal perisporium is connected to atmospheric environment.It changes
Yan Zhi, barrel chamber region, pipe close exhaust passage 331 and peripheral wall exhaust of the outer barrel barrel chamber between pipe close 33 and puncture needle installation end
Gap is sequentially communicated and atmospheric environment is sequentially communicated.
It is more uniform rationally for the structure that improves ventilatory effect and make pipe close 33, it is arranged and prolongs along the axial direction of outer barrel barrel chamber
The multiple pipe close exhaust passages 331 stretched, and be successively intervally arranged along the circumferential direction of pipe close 33.
The concrete shape of pipe close exhaust passage 331 can be depending on actual needs, can be in pipe close for example, referring to Fig. 7 and Fig. 8
The pipe close exhaust groove as pipe close exhaust passage 331 is formed on 33 periphery wall, which is equipped with towards diameter
Slot opening outward.In other words, pipe close exhaust passage 331 can be set to the open exhaust passage of peripheral wall.Alternatively, ginseng
According to Fig. 9 and Figure 10, the channel peripheral wall of pipe close exhaust passage 331 can be set to closing peripheral wall, it can be by pipe close exhaust passage 331
It is set as the enclosed exhaust passage of peripheral wall.In addition, the cross section of pipe close exhaust passage 331 may be configured as semicircular in shape, rectangular
Or the different shapes such as arc.
In some embodiments, pipe close 33 includes pipe close central part for sealing liquid sucking tube nozzle and is located at pipe close center
The radial outside in portion and the pipe close outer portion for being equipped with pipe close exhaust passage 331 can be by pipe close outer rings to guarantee to realize inside and outside ventilation
Portion is at least partly set as loose ventilation device, but still needs to guarantee that pipe close central part has leakproofness.
It, can be in pipe close 33 to guarantee that puncture needle inner end will not generate shaking when puncturing pipe close 33 and influence to puncture accuracy
End setting puncture guide hole 332 for what biopsy needle guide inner end penetrated, and make the outer contour shape of puncture needle inner end
It is mutually matched with the shape for puncturing guide hole 332.For example, referring to Fig. 3, by puncture needle inner end and guide hole 332 can be punctured it is arranged
For the long conical by its shape being mutually matched.
It should be noted that during puncture needle inner end punctures pipe close 33, it is possible that the axis of puncture needle inner end
The case where being blocked to apopore 22 by pipe close material, so as to cause drainage is blocked and makes device cisco unity malfunction.Therefore,
To avoid the occurrence of cutout situation, the peripheral wall water outlet being connected to the needle cavity of puncture needle 2 can be set on the periphery wall of puncture needle inner end
Hole 21, under such configuration, even if axial apopore 22 is blocked by pipe close material, aqueous humor can also be flowed out to by peripheral wall apopore 21
In liquid sucking tube lumen, to guarantee the functional reliability of device.
In addition, peripheral wall apopore 21 and the axial spacing of axial apopore 22 should not be too large, otherwise when axial apopore 22
After being inserted into liquid sucking tube lumen, peripheral wall apopore 21 is still located in pipe close 33 and is blocked, so as to cause peripheral wall apopore 21
Lose effectiveness.For this purpose, the hole center of peripheral wall apopore 21 and the axial spacing at the hole center of axial apopore 22 preferably can be set
It is set to no more than 3mm, to guarantee that peripheral wall apopore 21, which may be alternatively located at, adopts liquid after axial apopore 22 is inserted into liquid sucking tube lumen
Without being blocked in pipe lumen.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on the figure or
Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the present invention, the meaning of " plurality " is at least two, such as two, three
It is a etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected or can communicate each other；It can be directly connected, can also indirectly connected through an intermediary, it can be with
It is the interaction relationship of the connection or two elements inside two elements, unless otherwise restricted clearly.For this field
For those of ordinary skill, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
In the present invention unless specifically defined or limited otherwise, fisrt feature in the second feature " on " or " down " can be with
It is that the first and second features directly contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of
First feature horizontal height is higher than second feature.Fisrt feature can be under the second feature " below ", " below " and " below "
One feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (10)
1. a kind of aqueous humor acquisition device, which is characterized in that the aqueous humor acquisition device (100) includes:
Outer barrel (1), including puncture needle installation end and liquid sucking tube installation end；
Puncture needle (2), be fixedly installed in the puncture needle installation end and be equipped be located at outer barrel barrel chamber in puncture needle inner end and
Puncture needle outer end outside the outer barrel barrel chamber；
Liquid sucking tube component (3), including be inserted into outer barrel barrel chamber and can be moved along axial plug from the liquid sucking tube installation end
Dynamic liquid sucking tube (31) and it is arranged in the outer barrel barrel chamber with the pipe close (33) for sealing liquid sucking tube nozzle；
Wherein, the periphery wall of the liquid sucking tube component (3) is equipped with the setting of annular groove (35) described in annular groove (35) and hoop
Annular stop part (37), the radial outer end of the annular stop part (37) abuts outer barrel internal perisporium, the pipe close (33)
Smooth contact is formed between radially outer edge portion and the outer barrel internal perisporium and is equipped with the extending direction along the outer barrel barrel chamber
The pipe close exhaust passage (331) of setting, the outer barrel barrel chamber is between the pipe close (33) and the puncture needle installation end
Pipe close exhaust passage (331) described in barrel chamber regional connectivity.
2. aqueous humor acquisition device according to claim 1, which is characterized in that the pipe close (33) is equipped with along the outer barrel
Multiple pipe close exhaust passages (331) that axially extending and along the pipe close (33) the circumferential direction of barrel chamber is successively intervally arranged.
3. aqueous humor acquisition device according to claim 1, which is characterized in that be formed on the periphery wall of the pipe close (33)
As the pipe close exhaust groove of the pipe close exhaust passage (331), which is equipped with the groove towards radial outside
Opening.
4. aqueous humor acquisition device according to claim 1, which is characterized in that the channel of the pipe close exhaust passage (331)
Peripheral wall is closing peripheral wall.
5. aqueous humor acquisition device according to claim 1, which is characterized in that the pipe close exhaust passage (331) it is transversal
Face semicircular in shape shape, square configuration or arcuate shape.
6. aqueous humor acquisition device according to claim 1, which is characterized in that the pipe close (33) includes described for sealing
The pipe close central part of liquid sucking tube nozzle and positioned at the pipe close central part radial outside and be equipped with the pipe close exhaust passage
(331) pipe close outer portion, the pipe close outer portion are formed at least partially as loose ventilation device.
7. aqueous humor acquisition device according to claim 1, which is characterized in that the end of the pipe close (33) is equipped with for drawing
That leads that the puncture needle inner end penetrates punctures guide hole (332), and outer contour shape and described puncture of the puncture needle inner end are led
The shape of blind hole (332) is mutually matched.
8. aqueous humor acquisition device according to claim 1, which is characterized in that the liquid sucking tube (31) and outer barrel internal perisporium
Between be equipped with peripheral wall exhaust clearance, barrel chamber of the outer barrel barrel chamber between the pipe close (33) and the puncture needle installation end
Region, the pipe close exhaust passage (331) and the peripheral wall exhaust clearance are sequentially communicated.
9. aqueous humor acquisition device described according to claim 1~any one of 8, which is characterized in that the puncture needle inner end
Periphery wall be equipped with the peripheral wall apopore (21) that is connected to the needle cavity of the puncture needle (2).
10. aqueous humor acquisition device according to claim 9, which is characterized in that the puncture needle inner end be additionally provided with it is described
Needle cavity is along the axial apopore (22) being axially connected to, the hole center of the peripheral wall apopore (21) and the axial apopore (22)
Hole center axial spacing be no more than 3mm.
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910591476.XA CN110236784B (en) | 2019-07-02 | 2019-07-02 | Aqueous humor collecting device |
| PCT/CN2019/110062 WO2021000440A1 (en) | 2019-07-02 | 2019-10-09 | Aqueous humor collection device and aqueous humor collection method |
| JP2021577950A JP7337967B2 (en) | 2019-07-02 | 2020-06-18 | Reagent holder, detection device assembly, aqueous humor collection device and aqueous humor collection method |
| EP20834808.6A EP3995215A4 (en) | 2019-07-02 | 2020-06-18 | Reagent holder, testing apparatus assembly, aqueous humor collection device and aqueous humor collection method |
| PCT/CN2020/096860 WO2021000743A1 (en) | 2019-07-02 | 2020-06-18 | Reagent holder, testing apparatus assembly, aqueous humor collection device and aqueous humor collection method |
| US17/624,393 US20220354468A1 (en) | 2019-07-02 | 2020-06-18 | Reagent holder, testing apparatus assembly, aqueous humor collection device and aqueous humor collection method |
| IL289549A IL289549A (en) | 2019-07-02 | 2022-01-02 | Reagent holder, testing apparatus assembly, aqueous humor collection device and aqueous humor collection method |
| JP2023134836A JP2023164441A (en) | 2019-07-02 | 2023-08-22 | Reagent holder, detection device assembly, aqueous humor sampling device, and aqueous humor sampling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910591476.XA CN110236784B (en) | 2019-07-02 | 2019-07-02 | Aqueous humor collecting device |
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| Publication Number | Publication Date |
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| CN110236784A true CN110236784A (en) | 2019-09-17 |
| CN110236784B CN110236784B (en) | 2021-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910591476.XA Active CN110236784B (en) | 2019-07-02 | 2019-07-02 | Aqueous humor collecting device |
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| CN (1) | CN110236784B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021000743A1 (en) * | 2019-07-02 | 2021-01-07 | 北京华视诺维医疗科技有限公司 | Reagent holder, testing apparatus assembly, aqueous humor collection device and aqueous humor collection method |
| WO2021000440A1 (en) * | 2019-07-02 | 2021-01-07 | 北京华视诺维医疗科技有限公司 | Aqueous humor collection device and aqueous humor collection method |
Citations (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2085653U (en) * | 1991-03-20 | 1991-10-02 | 山东电力医院 | Medical porous treatment needle |
| CN2155813Y (en) * | 1993-03-06 | 1994-02-16 | 苗剑 | Miniature disposable negative pressure blood sampler |
| CN2243859Y (en) * | 1995-09-05 | 1997-01-01 | 刘立昌 | Bloody device |
| CN2270463Y (en) * | 1996-11-13 | 1997-12-17 | 上海医用缝合针厂 | Disposable collector for taking sample of venous blood |
| CN2309798Y (en) * | 1997-08-31 | 1999-03-10 | 张宗光 | Disposable hollow needle for blood sampling |
| CN2363656Y (en) * | 1998-11-27 | 2000-02-16 | 刘艳君 | Expendable sterile venous hemostix |
| CN2370824Y (en) * | 1999-06-04 | 2000-03-29 | 刘妍 | Convenient hemostix |
| CN2394575Y (en) * | 1999-08-03 | 2000-09-06 | 任益巧 | Disposable hemostix |
| CN1285720A (en) * | 1997-11-12 | 2001-02-28 | Mdc投资控股公司 | Fluid collection device with captured roctractable needle |
| US6221078B1 (en) * | 1999-06-25 | 2001-04-24 | Stephen S. Bylsma | Surgical implantation apparatus |
| GB2408456A (en) * | 2003-11-28 | 2005-06-01 | Mohamed Naguib Abdel-Khalek | Fluid evacuation syringe |
| CN2785610Y (en) * | 2005-04-11 | 2006-06-07 | 于海 | Transfusion device |
| CN2863145Y (en) * | 2006-01-23 | 2007-01-31 | 中北大学 | Disposable syringe |
| CN200939278Y (en) * | 2006-07-26 | 2007-08-29 | 张玉芳 | Syringe needle |
| CN201727638U (en) * | 2010-03-18 | 2011-02-02 | 李思珍 | Anterior chamber puncture needle |
| CN203290916U (en) * | 2013-06-21 | 2013-11-20 | 江苏国际旅行卫生保健中心 | Straight blood taking needle |
| CN204050005U (en) * | 2014-09-09 | 2014-12-31 | 赵潺 | Disposable negative pressure paracentesis needle |
| CN107050567A (en) * | 2017-04-28 | 2017-08-18 | 广东龙心医疗器械有限公司 | Anti- acupuncture remaining needle |
| CN207822208U (en) * | 2017-05-09 | 2018-09-07 | 浙江华福医用器材有限公司 | Without rubber plug easy breaking type syringe |
| CN108601901A (en) * | 2015-11-27 | 2018-09-28 | 赛诺菲-安万特德国有限公司 | Medicine delivery device with cap |
| CN208114876U (en) * | 2017-04-28 | 2018-11-20 | 广东龙心医疗器械有限公司 | Anti- needle pierces remaining needle |
-
2019
- 2019-07-02 CN CN201910591476.XA patent/CN110236784B/en active Active
Patent Citations (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2085653U (en) * | 1991-03-20 | 1991-10-02 | 山东电力医院 | Medical porous treatment needle |
| CN2155813Y (en) * | 1993-03-06 | 1994-02-16 | 苗剑 | Miniature disposable negative pressure blood sampler |
| CN2243859Y (en) * | 1995-09-05 | 1997-01-01 | 刘立昌 | Bloody device |
| CN2270463Y (en) * | 1996-11-13 | 1997-12-17 | 上海医用缝合针厂 | Disposable collector for taking sample of venous blood |
| CN2309798Y (en) * | 1997-08-31 | 1999-03-10 | 张宗光 | Disposable hollow needle for blood sampling |
| CN1285720A (en) * | 1997-11-12 | 2001-02-28 | Mdc投资控股公司 | Fluid collection device with captured roctractable needle |
| CN2363656Y (en) * | 1998-11-27 | 2000-02-16 | 刘艳君 | Expendable sterile venous hemostix |
| CN2370824Y (en) * | 1999-06-04 | 2000-03-29 | 刘妍 | Convenient hemostix |
| US6221078B1 (en) * | 1999-06-25 | 2001-04-24 | Stephen S. Bylsma | Surgical implantation apparatus |
| CN2394575Y (en) * | 1999-08-03 | 2000-09-06 | 任益巧 | Disposable hemostix |
| GB2408456A (en) * | 2003-11-28 | 2005-06-01 | Mohamed Naguib Abdel-Khalek | Fluid evacuation syringe |
| CN2785610Y (en) * | 2005-04-11 | 2006-06-07 | 于海 | Transfusion device |
| CN2863145Y (en) * | 2006-01-23 | 2007-01-31 | 中北大学 | Disposable syringe |
| CN200939278Y (en) * | 2006-07-26 | 2007-08-29 | 张玉芳 | Syringe needle |
| CN201727638U (en) * | 2010-03-18 | 2011-02-02 | 李思珍 | Anterior chamber puncture needle |
| CN203290916U (en) * | 2013-06-21 | 2013-11-20 | 江苏国际旅行卫生保健中心 | Straight blood taking needle |
| CN204050005U (en) * | 2014-09-09 | 2014-12-31 | 赵潺 | Disposable negative pressure paracentesis needle |
| CN108601901A (en) * | 2015-11-27 | 2018-09-28 | 赛诺菲-安万特德国有限公司 | Medicine delivery device with cap |
| CN107050567A (en) * | 2017-04-28 | 2017-08-18 | 广东龙心医疗器械有限公司 | Anti- acupuncture remaining needle |
| CN208114876U (en) * | 2017-04-28 | 2018-11-20 | 广东龙心医疗器械有限公司 | Anti- needle pierces remaining needle |
| CN207822208U (en) * | 2017-05-09 | 2018-09-07 | 浙江华福医用器材有限公司 | Without rubber plug easy breaking type syringe |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021000743A1 (en) * | 2019-07-02 | 2021-01-07 | 北京华视诺维医疗科技有限公司 | Reagent holder, testing apparatus assembly, aqueous humor collection device and aqueous humor collection method |
| WO2021000440A1 (en) * | 2019-07-02 | 2021-01-07 | 北京华视诺维医疗科技有限公司 | Aqueous humor collection device and aqueous humor collection method |
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| CN110236784B (en) | 2021-05-25 |
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