CN107811661A - A kind of eye speculum of one-hand operation - Google Patents
A kind of eye speculum of one-hand operation Download PDFInfo
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- CN107811661A CN107811661A CN201711221849.1A CN201711221849A CN107811661A CN 107811661 A CN107811661 A CN 107811661A CN 201711221849 A CN201711221849 A CN 201711221849A CN 107811661 A CN107811661 A CN 107811661A
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- distance rod
- jig arm
- support frame
- eye speculum
- inner sleeve
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
- A61B17/0231—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors for eye surgery
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F9/00—Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
- A61F9/0008—Introducing ophthalmic products into the ocular cavity or retaining products therein
-
- 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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
- C08L75/04—Polyurethanes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/02—Applications for biomedical use
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Ophthalmology & Optometry (AREA)
- General Health & Medical Sciences (AREA)
- Veterinary Medicine (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- Public Health (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Vascular Medicine (AREA)
- Chemical & Material Sciences (AREA)
- Medical Informatics (AREA)
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- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Materials For Medical Uses (AREA)
Abstract
The invention discloses a kind of eye speculum of one-hand operation, including support frame, one end of jig arm is rotatablely connected with support frame, the other end of jig arm is fixedly connected with the connecting rod, jig arm is symmetricly set on the both ends of support frame, the cantilever end of connecting rod is fixedly connected with hook portion, latch gear is fixedly connected with the middle part of support frame, latch gear is located at the side away from jig arm on support frame, clamping device is rotatably connected on latch gear, the middle part of latch gear and support frame is run through by distance rod, distance rod is rotatablely connected with jig arm respectively towards one end of jig arm by the first transmission rod, the other end of distance rod is rotatablely connected by the second transmission rod and clamping device, latch gear is used for the slip of limit thrust bar.By the way that eye speculum to be configured similarly to the structure of scissors, it can realize the opening of eye speculum by singlehanded and close up, and then realize one-handed performance, overcoming tradition needs the technical problem of eye speculum of bimanualness.
Description
Technical field
The present invention relates to operated eye instrument field, more particularly to a kind of eye speculum of one-hand operation.
Background technology
Eye speculum is hospital ophthalmology Special medical equipment, and it is used to expand eyelid（Eyes above and below two during eyelid
Block tissue）, for majority for making ophthalmologic operation, it is the surgical field of view for expanding doctor that it, which is acted on,.General eye speculum is screw turn-knob
Eye speculum, its operating method are：Eyelid is caught on the hook portion of eye speculum, then precession screw rod, eyelid bar is driven at both ends（That is the application
Jig arm）Outside diffusion, eyelid are expanded.It follows that needing bimanualness during traditional eye speculum, i.e., a hand needs
Eye speculum is held, to stablize its position, its another hand needs rotary screw, and to expand eyelid, so operation is to main operation
For hand, it appears it is rather troublesome, particularly in ophthalmologic operation is done, general operating doctor when not needing secondary manipulator to help,
In order to expand surgical field of view, its temporary adandonment of having to is ongoing to be operated to operate eye speculum, and this operation midway is suspended
Situation easily cause contingency of performing the operation, be unfavorable for that operating doctor is smooth to be performed the operation, and eyelid is operated out as secondary manipulator
During device, because the position of eye is narrow and small, space is limited, and double operated to eye undoubtedly increases operating difficulty, also easily
Accident surgery is caused, therefore, it is necessary to traditional eye speculum of bimanualness has inconvenient problem with use.
Meanwhile in opthalmic surgery is done, eyes under the irradiation of high poly- lamp, easily dry and trigger patient's eye by eye
Portion is uncomfortable, and then triggers postoperative complication, even if its eye can lose most of consciousness in the case of anaesthetic, but eye
Drying can stimulate patient is subconscious to blink, and it is unfavorable for the progress of operation, and after finding eye dryness, eye drip is carried out to it
When medicine moistens, because eye speculum does not set the structure of installation drop medicine device, its help for having to seek secondary manipulator, cause
Eye speculum function is excessively single.
In addition, the hook portion of eye speculum often uses stainless steel and TPU（Thermoplastic polyurethane rubber）Material is made, and due to stainless
Steel rigidity is too big, easily eyeball and eyelid is caused to damage when in use, therefore, current trend using softer TPU materials come
As hook portion, still, because thermoplastic polyurethane rubber poor air permeability, bending strength are low, it with eyelid when contacting, jig arm
The change of opening force degree is excessive, then easily causes hook portion deformation and depart from greatly and with eyelid very much, in prolonged surgical procedure, have quite
The eyelid position meeting redness of the patient of a part is sweated, and then eye is caused to stimulate, and it is obviously unfavorable for smoothly entering for operation
OK.
The content of the invention
The goal of the invention of the present invention is：For above-mentioned problem, there is provided a kind of eye speculum of one-hand operation, lead to
The structure that eye speculum is configured similarly to scissors is crossed, the opening of eye speculum can be realized by singlehanded and close up, Jin Ershi
Existing one-handed performance, overcoming tradition needs the technical problem of eye speculum of bimanualness, meanwhile, there is opening for similar scissor construction
Eyelid device can also be at any time regulation eyelid expansion size, and then the elasticity that eyelid expands freely is adjusted as needed, to fit
Each stage of operated eye is answered to expand the requirement of degree to eyelid, that more conducively performs the operation is smoothed out.
The technical solution adopted by the present invention is as follows：A kind of eye speculum of one-hand operation, including support frame, clamping device and
Jig arm, it is characterised in that one end of jig arm is rotatablely connected with support frame, and the other end of jig arm is fixedly connected with the connecting rod, jig arm
The both ends of support frame are symmetricly set on, the cantilever end of connecting rod is fixedly connected with hook portion, lock pin is fixedly connected with the middle part of support frame
Mechanism, latch gear are located at the side away from jig arm, clamping device on support frame and are rotatably connected on latch gear, latch gear
Run through with the middle part of support frame by distance rod, distance rod is rotated with jig arm respectively towards one end of jig arm by the first transmission rod to be connected
Connecing, the other end of distance rod is rotatablely connected by the second transmission rod and clamping device, and distance rod can slide in latch gear,
Latch gear is used for the slip of limit thrust bar.
Further, clamping device includes the hand-held arm for being symmetricly set in distance rod both sides, holds arm and rotates company with distance rod
Connect, when hand-held arm drawn close to the center line of distance rod or away from when, distance rod to it is remote or draw close support frame direction move, enter
And jig arm is set to be drawn close with the movement of distance rod to the center line of distance rod or remote.
Further, latch gear includes outer sleeve and inner sleeve, and one end of outer sleeve is fixedly connected on support frame, and its is another
One end is rotatablely connected with clamping device；Inner sleeve is rotatablely connected with outer sleeve, and distance rod is placed in inner sleeve, the inwall of inner sleeve
Groove provided with the distribution of helically line, distance rod are provided with the slide bumping coordinated with groove type face, when distance rod is along its axis
When direction is moved, inner sleeve rotates relative to distance rod.
Further, latch is installed, latch is used for the rotation for limiting inner sleeve on outer sleeve.
Further, the wall thickness of outer sleeve is more than the wall thickness of inner sleeve.
Further, the spacing between outer sleeve and inner sleeve is not less than 1mm.
Further, the outer surface of inner sleeve coats one layer of polytetrafluoroethylene floor, and the thickness of polytetrafluoroethylene floor is 150-300
μm。
Further, hook portion is made of thermoplastic polyurethane rubber, uniform multiple air-vents in hook portion.
In summary, by adopting the above-described technical solution, the beneficial effects of the invention are as follows：One kind provided by the invention can
The eye speculum of one-handed performance, by the way that eye speculum to be configured similarly to the structure of scissors, eye speculum can be realized by one hand
Opening and close up, and then realize one-handed performance, overcoming tradition needs the technical problem of eye speculum of bimanualness, meanwhile,
The expansion size of regulation eyelid that can also be at any time with the eye speculum similar to scissor construction, and then freely adjust eye as needed
The elasticity that eyelid expands, to adapt to the requirement that each stage of operated eye expands degree to eyelid, that more conducively performs the operation is suitable
Profit is carried out.
Brief description of the drawings
Fig. 1 is a kind of eye speculum three dimensional structure diagram of the present invention；
Fig. 2 is the eye speculum main structure diagram of the present invention；
Fig. 3 is the partial enlarged drawing of part A in Fig. 2；
Fig. 4 is the hook portion deployed configuration partial schematic diagram of the present invention；
Fig. 5 is the latch gear cross section structure diagram of the present invention.
Reference：1 is support frame, and 2 be clamping device, and 201 be hand-held arm, and 3 be jig arm, and 301 be propulsive liquid portion, and 4 be company
Extension bar, 5 be hook portion, and 501 be air-vent, and 502 be drainage trough, and 6 be latch gear, and 601 be outer sleeve, and 602 be inner sleeve, 603
It is groove for ball, 604,7 be distance rod, and 701 be slide bumping, and 8 be the first transmission rod, and 9 be the second transmission rod, and 10 be slotting
Pin, 11 be drainage tube.
Embodiment
Below in conjunction with the accompanying drawings, the present invention is described in detail.
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
As shown in Figures 1 to 5, a kind of eye speculum, including support frame 1, clamping device 2 and jig arm 3, one end of jig arm 3 with
Support frame 1 is rotatablely connected, and the other end of jig arm 3 is fixedly connected with connecting rod 4, and jig arm 3 is symmetricly set on the both ends of support frame 1.
The cantilever end of connecting rod 4 is fixedly connected with hook portion 5, and the middle part of support frame 1 is fixedly connected with latch gear 6, and latch gear 6 is positioned at branch
The side away from jig arm 3, clamping device 2 are rotatably connected on latch gear 6 on support 1, and the middle part of latch gear 6 is by distance rod
7 run through, and distance rod 7 is distinguished through the middle part of support frame 1, distance rod 7 towards one end of jig arm 3 by the first transmission rod 8 simultaneously
It is rotatablely connected with jig arm 3, the other end of distance rod 7 is rotatablely connected by the second transmission rod 9 with clamping device 2, and distance rod 7 can
Slided in latch gear 6, latch gear 6 is used for the slip of limit thrust bar 7.Clamping device 2 includes being symmetricly set in thrust
The hand-held arm 201 of the both sides of bar 7, hand-held arm 201 are rotatablely connected with distance rod 7, when the center line of hand-held arm 201 to distance rod 7 leans on
When holding together, hold arm 201 and drive distance rod 7 to be moved to the direction away from support frame 1 by the second transmission rod 9, and then make distance rod 7
The first transmission rod 8 is pulled, and drives jig arm 3 also to be drawn close to the center line of distance rod 7 by the first stayed mast 8, is achieved in pressing from both sides
The closing action of arm 3；Correspondingly, when hand-held center line of the arm 201 away from distance rod 7 moves, hold arm 201 and pass through the second biography
Power bar 9 drives distance rod 7 to be moved to close to the direction of support frame 1, and then distance rod 7 is pulled the first transmission rod 8, and passes through the
One stayed mast 8 drives jig arm 3 also remote to the center line of distance rod 7, is achieved in the opening action of jig arm 3.Latch gear 6 can
To fix distance rod 7 by latch.Relative to it is traditional screw rod come by way of realizing the opening of eye speculum and closing up,
The eye speculum of the present invention can realize one-handed performance, can adjust the opening-closing size of eyelid device at any time, while can realize solid at any time
It is fixed, the operation of operated eye is facilitated, the sense of discomfort caused by eye is significantly reduced, patient is acceptable to spend, and is beneficial to
Operation technique is smoothed out.
Further, latch gear 6 includes outer sleeve 601 and inner sleeve 602, as shown in figure 5, one end of outer sleeve 601
It is fixedly connected on support frame 1, the other end is rotatablely connected with clamping device 2；Inner sleeve 602 passes through ball 603 and outer sleeve 601
Rotation connection, distance rod 7 are placed in the inside of inner sleeve 602, and the inwall of inner sleeve 602 is provided with the groove 604 of helically line distribution,
Distance rod 7 be provided with the shape face of groove 604 coordinate slide bumping 701, slide bumping 701 can in groove 604 slidably,
When distance rod 7 moves along its axis direction, inner sleeve 602 rotates relative to distance rod 7（Turn original similar to rotary mop
Reason）, now, as long as setting latch 10 on outer sleeve 601, the rotation of inner sleeve 602 is limited by latch 10, you can realize
The movement of limit thrust bar 7, and then the purpose of fixed distance rod 7, are fixed the open angle of eye speculum, without logical
That receives and distributes exerts oneself to be maintained open angle, saves the physical demands of user, and the use of eye speculum is more stable.
Further, in order that distance rod 7 does not shift in moving process, and make the structure of latch gear 6 more steady
Fixed firm, the wall thickness of outer sleeve 601 is more than the wall thickness of inner sleeve 602.Correspondingly, in order that distance rod 7 preferably moves, reduce
Resistance suffered by it, in order to eye speculum smooth opening or close up, the spacing between outer sleeve 601 and inner sleeve 602 is not less than
1mm。
Further, in order to reduce the resistance of the rotation of inner sleeve 602, the outer surface of inner sleeve 602 coats a strata tetrafluoro
Pvdf layer（It is not drawn into figure）, the thickness of polytetrafluoroethylene floor is 150-300 μm, preferably 230 μm.
Further, because the general operated eye time is longer, to prevent that patient is uncomfortable caused by eye dryness, hook portion 5
It is made first of thermoplastic polyurethane rubber, as shown in Figure 3 and Figure 4, uniform multiple air-vents 501 in hook portion 5, eyelid is opened to improve
Comfort level of the device when widening the view eyelid.The surface of hook portion 5 is provided with crisscross drainage trough 502, and hook portion 5 is by drainage tube 11 with connecting
Extension bar 4 is fixedly connected, and is full of eyedrops in drainage tube 11, conveys eyedrops to hook portion by drainage tube 11, hook portion 5 passes through drainage
Groove 502 is substantially distributed everywhither, and then eyelid is soaked, and unnecessary eyedrops then flows into intraocular with eyelid, and then plays
The effect of moistening eye, solves the problems, such as eye dryness.
Further, in order to preferably be soaked to eyelid, the place for making hook portion 5 be contacted with eyelid can be wetted,
Air-vent 501 is arranged on drainage trough 502, as shown in Figure 4.The surface of hook portion 5 covers one layer of spongy layer（It is not drawn into figure）, lead to
The space cavernous structure for crossing sponge is more evenly distributed come the eyedrops for flowing out drainage tube 11, and then hook portion 5 is contacted with eyelid
Place can be wetted, improve wetting effect, preferably solve the problems, such as eye dryness.
Further, in order to preferably make the drainage tube 11 of the present invention export eyedrops, connecting rod 4 and jig arm 3 are respectively provided with
Hollow inner chamber, and connecting rod 4 is stretched into jig arm 3 with the end that jig arm 3 is connected and is fixedly connected, and the hollow cavity of jig arm 3
It is mutually communicated with the hollow cavity of connecting rod 4, propulsive liquid portion 301 and liquid injection port is provided with jig arm 3（It is not drawn into figure）, propulsive liquid portion
301 include being arranged on the pushing block outside jig arm 3 and the push-pads being slidably connected inside jig arm 3, and pushing block and push-pads, which are fixed, to be connected
Connect, propulsive liquid portion 301 can be in jig arm 3 slidably.The hollow cavity shape of cross section phase of the shape of push-pads and jig arm 3
Match somebody with somebody, eyedrops by liquid injection port enter jig arm 3 hollow intracavitary, due to actual use when, the diameter of connecting rod 4 and jig arm 3
Smaller, the diameter of jig arm 3 is generally 2-4mm, and the diameter of connecting rod 4 is generally 1-2mm, therefore, in the case of uninflated,
The eyedrops being placed in jig arm 3 and connecting rod 4 will not be flowed outwardly voluntarily by drainage tube 11, therefore, the effect in propulsive liquid portion 301
Be exactly to realize pressurization using the push-pads in propulsive liquid portion 301, drainage tube 11 is flowed out eyedrops, and then with take with
Effect, be easy to user to be more convenient operation in surgical procedure, improve the adaptability of eye speculum, enrich the work(of eye speculum
Energy.
In view of traditional thermoplastic polyurethane rubber because biocompatibility is poor, easily allergy is caused to infect in eyelid,
Bending strength is relatively low, is not easy to open eyelid position, effectively to overcome hard thermoplastic polyurethane rubber to cause eye illness and bending strength
The problem of relatively low yielding, the thermoplastic polyurethane rubber are made up of the component of following parts by weight：80 parts of TPU resins, titanium
White powder 18-26 parts, wax powder 7-9 parts, silica 3-5 parts, glass fibre 2-5 parts, zinc stearate 1-3 parts, silane coupler 1-3
Part, antioxidant 1-3 parts, levelling agent 0.5-1 parts, dispersant 0.5-1 parts.The granularity of titanium dioxide is 300-400 mesh, wax powder and two
The granularity of silica is 100-200 mesh, and the average filament diameter of glass fibre is 100-150 μm, draw ratio 40-50:1, it is excellent
Elect 43 as:1；Antioxidant is preferably antioxidant 168, and levelling agent is preferably organic-silicon-modified polysiloxanes, and dispersant is preferred
For BYK-ATU dispersants.
In above-mentioned, titanium dioxide and glass fibre need modification when in use, to increase its compatibility, make to eventually form
Thermoplastic polyurethane rubber comprehensive mechanical property it is preferable, improve its durability.Specifically, the modification of titanium dioxide
Concrete operations include：With silane coupler at 100 DEG C, processing is modified in deionized water, reacts 6-8h；Glass
The concrete operations of the modification of fiber include：With silane coupler at 80 DEG C, processing is modified in deionized water, instead
Answer 10h.
In order to preferably implement the thermoplastic polyurethane rubber of the present invention, the preparation method of thermoplastic polyurethane rubber includes
Following steps：
Step 1, by TPU resins, wax powder, silica and dispersant add reactor in, then with mixer with 800rad/
Min rotating speed, which is stirred, to be uniformly dispersed, and obtains base-material；
Step 2, glass fibre and titanium dioxide be added in coupling reaction tank, in 80 DEG C under 800rad/min mixing speed
In be uniformly mixed, while stirring, silane coupler is sprayed directly in mixture, is made mixed after being incubated 20min
Compound；
Then and one step 3, base-material, mixture, antioxidant, levelling agent and zinc stearate be well mixed in agitator,
Rise to deliver to and 8h is kneaded in banbury；
After step 4, mixing terminate, allow its coagulation forming, obtain sizing material, sizing material is post-processed.
Further, in step 4, post processing specifically includes：Slicing treatment, the size and thickness of section are carried out to sizing material
Depending on the design size of hook portion, the then high-temperature process 30min at 80 DEG C, hook portion is obtained after cooling and shaping.
In order to which the thermoplastic polyurethane rubber of the present invention is better described, specific embodiment is exemplified below, as shown in table 1：
The embodiment 1-8 of table 1 specific formula（In parts by weight）
Main performance is tested
1st, Mechanics Performance Testing：Tensile strength and bending strength are test using universal testing machine（Testing standard is respectively adopted
ISO 527 and ISO 178 are tested）；
2nd, ageing resistance is tested：The aging for a week in artificial accelerated aging case, then survey the decline percentage of its performance.
As a result it is as shown in table 2：
The embodiment 1-7 of table 2 Specifeca tion speeification
As shown in Table 2, the tensile strength of thermoplastic polyurethane rubber of the invention reaches 29MPa, and bending strength reaches
14.3MPa, ageing resistance are not higher than 9%, have good comprehensive mechanical property, particularly have higher bending strength（Typically
The bending strength of thermoplastic polyurethane rubber is less than 7MPa）, requirement of the hook portion to material property is disclosure satisfy that, overcomes traditional heat
Plastic polyurethane rubber bending strength is relatively low, the problem of being not easy to open eyelid position.
In the above-described embodiments, when obtained hook portion being applied to do operated eye, there is not one also at present because of hook portion material
Expect situation about causing allergic reaction, cause is probably that thermoplastic polyurethane rubber of the invention has used the less chemistry of content
Reagent and there is more supervirulent chemical raw material, rolled up containing for the content of inorganic hypotoxicity filler, especially titanium dioxide
Amount, and then under conditions of ensureing that thermoplastic polyurethane rubber has good combination property, be greatly reduced chemical reagent and
Industrial chemicals stimulates to caused by skin, hence it is evident that reduces allergic reaction caused by thermoplastic polyurethane rubber, thus illustrates this
The thermoplastic polyurethane rubber of invention can be contacted directly with human body weak part, and it hardly causes allergic reaction, and be solved
The problem of conventional thermoplastic's polyurethane rubber can cause cutaneous anaphylaxis.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement made within refreshing and principle etc., should be included in the scope of the protection.
Claims (8)
1. a kind of eye speculum of one-hand operation, including support frame, clamping device and jig arm, it is characterised in that one end of jig arm
It is rotatablely connected with support frame, the other end of jig arm is fixedly connected with the connecting rod, and jig arm is symmetricly set on the both ends of support frame, connection
The cantilever end of bar is fixedly connected with hook portion, and latch gear is fixedly connected with the middle part of support frame, and latch gear is located on support frame far
From the side of jig arm, clamping device is rotatably connected on latch gear, and the middle part of latch gear and support frame is run through by distance rod,
Distance rod is rotatablely connected with jig arm respectively towards one end of jig arm by the first transmission rod, and the other end of distance rod passes by second
Power bar is rotatablely connected with clamping device, and distance rod can slide in latch gear, and latch gear is used for the cunning of limit thrust bar
It is dynamic.
2. the eye speculum of one-hand operation as claimed in claim 1, it is characterised in that clamping device includes being symmetricly set in pushing away
The hand-held arm of power bar both sides, hold arm and be rotatablely connected with distance rod, when hand-held arm is drawn close to the center line of distance rod or is remote,
Distance rod to remote or draw close the direction of support frame and move, and then make jig arm with the movement of distance rod and to the center of distance rod
Line is drawn close or remote.
3. the eye speculum of one-hand operation as claimed in claim 1, it is characterised in that latch gear includes outer sleeve and inner sleeve
Cylinder, one end of outer sleeve are fixedly connected on support frame, and its other end is rotatablely connected with clamping device；Inner sleeve turns with outer sleeve
Dynamic connection, distance rod are placed in inner sleeve, and the inwall of inner sleeve is provided with the groove of helically line distribution, distance rod be provided with it is recessed
The slide bumping that corrugated surface coordinates, when distance rod moves along its axis direction, inner sleeve rotates relative to distance rod.
4. the eye speculum of one-hand operation as claimed in claim 3, it is characterised in that latch, latch are provided with outer sleeve
For limiting the rotation of inner sleeve.
5. the eye speculum of one-hand operation as claimed in claim 3, it is characterised in that the wall thickness of outer sleeve is more than inner sleeve
Wall thickness.
6. the eye speculum of one-hand operation as claimed in claim 3, it is characterised in that the spacing between outer sleeve and inner sleeve
Not less than 1mm.
7. the eye speculum of one-hand operation as claimed in claim 3, it is characterised in that the outer surface of inner sleeve coats a strata
Tetrafluoroethene layer, the thickness of polytetrafluoroethylene floor is 150-300 μm.
8. the eye speculum of one-hand operation as claimed in claim 1, it is characterised in that hook portion thermoplastic polyurethane rubber system
Into uniform multiple air-vents in hook portion.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711221849.1A CN107811661A (en) | 2017-11-29 | 2017-11-29 | A kind of eye speculum of one-hand operation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711221849.1A CN107811661A (en) | 2017-11-29 | 2017-11-29 | A kind of eye speculum of one-hand operation |
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| CN107811661A true CN107811661A (en) | 2018-03-20 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109172009A (en) * | 2018-08-24 | 2019-01-11 | 朱鹏豫 | Patient has the examination of mouth medical instrument for experience of more preferably seeing a doctor |
| CN112370092A (en) * | 2020-11-09 | 2021-02-19 | 温州医科大学眼视光研究院 | Convenient-to-use eyelid retractor for medical ophthalmology |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5618261A (en) * | 1994-10-27 | 1997-04-08 | Nevyas; Herbert J. | Eye proptosing speculum and method |
| CN2686572Y (en) * | 2004-03-05 | 2005-03-23 | 刘菲 | Eye speculum |
| CN1863479A (en) * | 2003-08-14 | 2006-11-15 | 新特斯有限责任公司 | Multiple-blade retractor |
| CN204501209U (en) * | 2015-01-23 | 2015-07-29 | 河南科技大学第一附属医院 | A kind of novel eye speculum |
| CN106037841A (en) * | 2016-07-11 | 2016-10-26 | 张磊 | Eye speculum for children |
-
2017
- 2017-11-29 CN CN201711221849.1A patent/CN107811661A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5618261A (en) * | 1994-10-27 | 1997-04-08 | Nevyas; Herbert J. | Eye proptosing speculum and method |
| CN1863479A (en) * | 2003-08-14 | 2006-11-15 | 新特斯有限责任公司 | Multiple-blade retractor |
| CN2686572Y (en) * | 2004-03-05 | 2005-03-23 | 刘菲 | Eye speculum |
| CN204501209U (en) * | 2015-01-23 | 2015-07-29 | 河南科技大学第一附属医院 | A kind of novel eye speculum |
| CN106037841A (en) * | 2016-07-11 | 2016-10-26 | 张磊 | Eye speculum for children |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109172009A (en) * | 2018-08-24 | 2019-01-11 | 朱鹏豫 | Patient has the examination of mouth medical instrument for experience of more preferably seeing a doctor |
| CN109172009B (en) * | 2018-08-24 | 2021-03-09 | 青岛大学附属医院 | Medical instrument for oral examination with better medical experience for patients |
| CN112370092A (en) * | 2020-11-09 | 2021-02-19 | 温州医科大学眼视光研究院 | Convenient-to-use eyelid retractor for medical ophthalmology |
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