CN109771133A - A kind of contact lens receiver applied to vitrectomy - Google Patents
A kind of contact lens receiver applied to vitrectomy Download PDFInfo
- Publication number
- CN109771133A CN109771133A CN201910170752.5A CN201910170752A CN109771133A CN 109771133 A CN109771133 A CN 109771133A CN 201910170752 A CN201910170752 A CN 201910170752A CN 109771133 A CN109771133 A CN 109771133A
- Authority
- CN
- China
- Prior art keywords
- gripper
- contact lens
- arm
- disk
- pressing bar
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 210000004087 cornea Anatomy 0.000 claims abstract description 9
- 230000007423 decrease Effects 0.000 claims abstract description 7
- 230000001681 protective effect Effects 0.000 claims description 6
- 210000000078 claw Anatomy 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 10
- 230000006378 damage Effects 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 5
- 239000002184 metal Substances 0.000 abstract description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 210000003813 thumb Anatomy 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 208000028006 Corneal injury Diseases 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 210000003811 finger Anatomy 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
Landscapes
- Prostheses (AREA)
Abstract
The invention discloses a kind of contact lens receivers applied to vitrectomy, comprising: press device, gripper disk, gripper and shell；In pressing bar decline, tail portion presses gripper upper arm, so that pawl arm outreach, loosens the rise of button press stick, receives to grab cornea in pawl arm.Distributor of the present invention can be improved procedure efficiency, reduce because of metal tweezers contact damage eyeglass, not easily to fall off, collect the risk for conveniently reducing eyeglass damage in fetching process.
Description
Technical field
The invention belongs to medical instruments fields, and in particular to a kind of contact lens receipts for vitrectomy
Put device.
Background technique
In modern vitrectomy, non-contact wide angle system is widely applied, and it is clear, wide-angle to provide for patient
Surgical field of view.However due to its " untouchable ", corneal injury is always to be difficult to the problem of evading in art.Contact lens is matched
Bitot's patches in art can be prevented by closing use, patient's eye fundus image clarity be maintained, to favor by patient.However due to angle
Film contact lense surface is smooth, takes in art and is difficult to clamp, and patient can only be placed with instrument or clamped with hand, and when disinfection does not have phase
The aerial construction answered.So that had the disadvantage that in its clinical use first, instrument or hand clamping easy damaged contact lense mirror surface,
Cause the visual field in art fuzzy.Second, clamping rear stability is poor, it is easy to fall off.
It there is no the retractable equipment for being specifically applied to contact lens in art currently on the market.Equipment as existing three type
For the contact lens applicator in daily life, it is divided into tweezers, soft folder, inhales stick.Tweezers are because its contact surface is small, and clamping is not
Easily, easy to fall off, and easy damaged contact surface, therefore be not appropriate for applying in operation.Soft folder and suction stick are made mostly with silica gel,
Contact surface is big when use, though being not easy damaging contact face, due to only contacting convex surface, clamping needs to provide suitable power by patient
Amount frictionally is maintained on soft folder or suction stick, therefore is easy to cause and is fallen off.On vitrectomy platform, patient needs
Switching common views and field of microscope, falling off for contact lens will bring huge puzzlement to operator.In addition, being connect in cornea
During touching mirror sterilizes repeatedly, contact lens can also be lost by rubbing repeatedly with the external world, a device that can make somebody a mere figurehead contact lens
Tool is necessary.
Summary of the invention
The present invention prevents the angle to fall off in view of the shortcomings of the prior art, contact lens can be placed safely by providing one kind
Film contact lense distributor.
To achieve the goals above, the invention adopts the following technical scheme: it is a kind of applied to vitrectomy
Contact lens receiver, comprising: press device, gripper disk, gripper and shell；Wherein shell is in top closure, bottom
Open ducted body, the press device include button, spring, press straightening triangular prism, frame plate and pressing bar；The button runs through
Inside and outside shell, frame plate is immobilized in the shell portion, the top of the pressing bar sphenoid upward in tip, pressing bar pass through frame plate and
The middle part of sphenoid is located at frame plate plane, and one end of the spring and the right-angle surface for pressing straightening triangular prism are fixed on button tail portion
And it is located at the upper and lower of frame plate, the other end of spring is fixed on the baffle surface being set on frame plate, by straightening triangular prism
Wedge angle resist on the inclined-plane at the top of sphenoid, push button, pressing bar with pressing force increase and decline；The gripper disk is in
Annular is fixed on housing bottom, and the gripper includes the upper arm on top and the pawl arm of middle and lower part, between the upper arm and pawl arm
It is provided with fixation hole, gripper passes through gripper disk by fixation hole, and the upper arm of gripper is located in gripper disk ring
Side, pawl arm are located at disk outer lower side, and the bottom surface frame of pressing bar is on upper arm, in pressing bar decline on bottom surface pressing gripper
Arm is received to grab cornea in pawl arm so that pawl arm outreach, loosens the rise of button press stick.
Further, the quantity of gripper is 3~10, and the gripper is evenly distributed on gripper disk.
Further, it is provided with torsionspring between the fixation hole of gripper and gripper disk, the one of the torsionspring
Hold the arm of force and gripper upper arm equidirectional, the other end arm of force is fixed on gripper disk, so where gripper and gripper disk
Plane at an angle and control claw arm interior receipts.
Further, the pawl arm lower part of gripper is enclosed with anti-slip rubber layer.
Further, shell is cylindrical or cuboid.
Further, frame plate lower part is provided with pressing bar fixing sleeve.
Further, contact lens receiver further includes gripper protective case, and the protective case can be covered in gripper
With the outside of housing bottom.
Further, the bottom of pressing bar is gradually increased, and bottom surface is in the form of annular discs.
Further, the sphenoid tip angle at the top of pressing bar is 5 °~20 °, sphenoid according to pressing depth 2~5mm.
Further, the length of gripper upper arm is 2~5mm, upper arm and be in 15 °~30 ° with plane where gripper disk.
Arm lengths are 10~30mm under gripper.
The present invention has the beneficial effect that: (1) procedure efficiency can be improved in distributor of the present invention, reduces and damages because metal tweezers contact
Hurt eyeglass, it is not easily to fall off, collect the risk for conveniently reducing eyeglass damage in fetching process.(2) present invention design is easy, uses
Be common in the market metal or plastic material, being conducive to the later period produces in batches.(3) distributor of the present invention, to lens contacts face
Product is small, does not damage the center of lens visual field.Tweezers are evaded in clamping process to the damage of eyeglass.(4) distributor of the present invention is small
Ingeniously, convenient, it is easy to sterilize together after clamping contact lens, it is reusable.(5) present invention can directly clipped lens Shi Jing
Viscoelastic agent is smeared after piece, avoids placing eyeglass again after cornea smears viscoelastic agent when traditional operation and being also easy to produce in aeration art regarding
Wild phenomenon.
Detailed description of the invention
Fig. 1 is the structural schematic diagram (shell section) of embodiment contact lens receiver.
Specific embodiment
In order to make those skilled in the art more fully understand application scheme, below in conjunction in the embodiment of the present application
Attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described embodiment is only
The embodiment of the application a part, instead of all the embodiments.Based on the embodiment in the application, ordinary skill people
Member's every other embodiment obtained without making creative work, all should belong to the model of the application protection
It encloses.
It should be noted that term " includes " and " tool in the description and claims of this application and above-mentioned attached drawing
Have " and their any deformation, it is intended that cover it is non-exclusive include, for example, containing a series of steps or units
Process, method, system, product or equipment those of are not necessarily limited to be clearly listed step or unit, but may include without clear
Other step or units listing to Chu or intrinsic for these process, methods, product or equipment.
Contact lens receiver applied to vitrectomy as shown in Figure 1 includes: press device, machinery
Pawl disk 1, gripper and shell 2.
Wherein shell is in top closure, bottom-open cylindrical.
Press device includes button 3, spring 4, presses straightening triangular prism 5, frame plate 6 and pressing bar 7.Button is inside and outside shell
And be supported, button support frame can be set on shell.Frame plate is immobilized in the shell portion, the top of pressing bar in tip to
On sphenoid 8, sphenoid tip angle be α, sphenoid is according to pressing depth a1.
The middle part that pressing bar passes through frame plate and sphenoid is located at frame plate plane, one end of spring and by straightening triangular prism
Right-angle surface be fixed on button tail portion and be located at frame plate up and down, the other end of spring, which is fixed on, to be set on frame plate
9 surface of baffle, is resisted on the inclined-plane at the top of sphenoid by the wedge angle of straightening triangular prism.By another right-angle surface of straightening triangular prism
It is parallel with the bottom surface of frame plate.Push button is slided by the angle of straightening triangular prism on the inclined-plane of sphenoid, and pressing bar is with pressing force
Increase and declines.It is h that pressing bar, which moves down height,.Stop push button, button is sprung back under the action of the spring.
Frame plate is provided with gap in button side, presses convenient for button to enclosure interior.
Gripper disk is fixed on housing bottom in a ring, is fixed by pitman.
The quantity of gripper is three, the pawl arm 11 of each upper arm 10 and middle and lower part including top, upper arm and pawl arm it
Between be provided with fixation hole 12, gripper passes through gripper disk by fixation hole.Torsion bullet is provided between fixation hole and connection ring
Spring 13, one end arm of force and gripper upper arm of torsionspring are equidirectional, and the other end arm of force is fixed on gripper disk, so that mechanical
Plane where pawl and gripper disk is at an angle: being located at top, pawl arm in gripper disk ring and is located at disk outer lower side.
The bottom surface frame of pressing bar is on the upper arm of three grippers, in pressing bar decline on bottom surface pressing gripper
Arm is received to grab cornea in pawl arm so that pawl arm outreach, loosens the rise of button press stick.Entire gripper be in it is similar "] "
Shape, upper/lower terminal are protruding.The plane perpendicular of time receiving in pawl arm, lower end and pressing bar.
The pawl arm lower part of gripper is enclosed with anti-slip rubber layer.Gripper upper arm and the angle of plane where gripper disk are
β.Gripper pawl arm lengths are e.Single gripper upper arm is γ, machine with the angle rotated with gripper disk intersection point during pressing
The angle of machinery claw pawl arm outreach is similarly γ.
It is acquired according to trigonometric function:
H=a1tanα (1)
γ=β-arcsin [(dsin β-a1tanα)/d] (2)
Wherein h is that pressing bar moves down height, a1According to pressing depth for sphenoid, α is sphenoid tip angle, and γ is gripper
Pawl arm abduction angle, β are the angle of plane where gripper upper arm and gripper disk, and d is the length of gripper upper arm.It can see
Out, the height that pressing bar moves down by pressing sphenoid according to pressing depth and sphenoid tip angle determines, the angle of gripper outreach
Height is moved down by angle, mechanical arm upper arm lengths and the pressing bar on gripper top and plane where gripper disk to determine.Therefore
When each portion's parameter is fixed, the angle of gripper outreach is only according to pressing depth determined by sphenoid.
It is also provided with protective case in gripper and housing bottom, for protecting gripper.
The bottom of pressing bar, which can be, to be gradually increased, and bottom surface is in the form of annular discs.
Pressing bar fixing sleeve has can be set in frame plate lower part, not run-off the straight when for ensureing pressing bar decline.
When in use, the protective case of contact lens receiver is first removed, one hand is held or pinched with thumb and index finger
The top of shell, with thumb press button, the sphenoid at the top of spring press pressing bar declines pressing bar, so that gripper
Upper arm decline, pawl arm rise outreach, by contact lens receiver move to required for clamping cornea top, cornea is placed in
The rise of button press stick is loosened in gripper disk center, receives to grab cornea in pawl arm.
Embodiment 1
A kind of contact lens distributor applied to vitrectomy, distributor sphenoid tip angle α=
10 °, gripper upper arm lengths d=3mm, angle β=20 ° of plane where gripper upper arm and gripper disk, sphenoid pressing
Depth a1=3mm, can obtain pressing bar to move down height by calculation formula 1,2 is about 0.53mm, and gripper abduction angle is about
10.4°。
Embodiment 2
A kind of contact lens distributor applied to vitrectomy, distributor sphenoid tip angle α=
8 °, the length d=3mm of gripper upper arm, angle β=20 ° of plane where gripper upper arm and gripper disk, sphenoid pressing
Depth a1=4mm, can obtain pressing bar to move down height by calculation formula 1,2 is about 0.56mm, and gripper abduction angle is about
11.1°。
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of contact lens receiver applied to vitrectomy, characterized by comprising: press device, machine
Machinery claw disk, gripper and shell；Wherein shell in top closure, bottom-open ducted body, the press device include button,
Spring presses straightening triangular prism, frame plate and pressing bar；For the button inside and outside shell, frame plate is immobilized in the shell portion, pressing bar
Top in the upward sphenoid in tip, pressing bar passes through frame plate and the middle part of sphenoid is located at frame plate plane, the spring
One end and press straightening triangular prism right-angle surface be fixed on button tail portion and be located at frame plate up and down, spring it is another
End is fixed on the baffle surface being set on frame plate, resists on the inclined-plane at the top of sphenoid by the wedge angle of straightening triangular prism, presses
Button, pressing bar increase with pressing force and are declined；The gripper disk is fixed on housing bottom in a ring, and the gripper includes
The upper arm on top and the pawl arm of middle and lower part, are provided with fixation hole, gripper is passed through by fixation hole between the upper arm and pawl arm
Gripper disk, and the upper arm of gripper is located at top, pawl arm in gripper disk ring and is located at disk outer lower side, the bottom surface frame of pressing bar
On upper arm, in pressing bar decline, bottom surface presses gripper upper arm, so that pawl arm outreach, loosens the rise of button press stick,
It receives to grab cornea in pawl arm.
2. contact lens receiver according to claim 1, it is characterised in that: the quantity of the gripper is 3~10
A, the gripper is evenly distributed on gripper disk.
3. contact lens receiver according to claim 1, it is characterised in that: the fixation hole of the gripper and connection
Torsionspring is provided between ring, one end arm of force and gripper upper arm of the torsionspring are equidirectional, and the other end arm of force is fixed
On gripper disk, so that plane where gripper and gripper disk is at an angle and the interior receipts of control claw arm.
4. contact lens receiver according to claim 1, it is characterised in that: wrap up the pawl arm lower part of the gripper
There is anti-slip rubber layer.
5. contact lens receiver according to claim 1, it is characterised in that: the shell is cylindrical or rectangular
The bodily form.
6. contact lens receiver according to claim 1, it is characterised in that: the frame plate lower part is provided with pressing bar
Fixing sleeve.
7. contact lens receiver according to claim 1, it is characterised in that: the contact lens receiver also wraps
Gripper protective case is included, the protective case can cover the outside in gripper and housing bottom.
8. contact lens receiver according to claim 1, it is characterised in that: the bottom of the pressing bar gradually increases
Greatly, bottom surface is in the form of annular discs.
9. contact lens receiver according to claim 1, it is characterised in that: the sphenoid point at the top of the pressing bar
Holding angle is 5 °~20 °, sphenoid according to pressing depth 2~5mm.
10. contact lens receiver according to claim 1, it is characterised in that: the length of the gripper upper arm is 2
~5mm, upper arm and be in 15 °~30 ° with plane where gripper disk.Arm lengths are 10~30mm under gripper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910170752.5A CN109771133B (en) | 2019-03-07 | 2019-03-07 | Cornea contact lens receiver applied to vitreoretinal surgery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910170752.5A CN109771133B (en) | 2019-03-07 | 2019-03-07 | Cornea contact lens receiver applied to vitreoretinal surgery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109771133A true CN109771133A (en) | 2019-05-21 |
| CN109771133B CN109771133B (en) | 2024-06-25 |
Family
ID=66486709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910170752.5A Active CN109771133B (en) | 2019-03-07 | 2019-03-07 | Cornea contact lens receiver applied to vitreoretinal surgery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109771133B (en) |
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| CN2147863Y (en) * | 1992-11-26 | 1993-12-01 | 许有明 | Spittoon holder |
| CN2317490Y (en) * | 1997-11-11 | 1999-05-05 | 刘玉珉 | Flexible conea contact lens taking-out and taking-in device |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN109771133B (en) | 2024-06-25 |
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