CN109431679A - A kind of intraocular precision instruments are without frictional grip - Google Patents
A kind of intraocular precision instruments are without frictional grip Download PDFInfo
- Publication number
- CN109431679A CN109431679A CN201811490063.4A CN201811490063A CN109431679A CN 109431679 A CN109431679 A CN 109431679A CN 201811490063 A CN201811490063 A CN 201811490063A CN 109431679 A CN109431679 A CN 109431679A
- Authority
- CN
- China
- Prior art keywords
- push rod
- inner core
- outer tube
- hand handle
- support base
- 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
- 230000000694 effects Effects 0.000 claims abstract description 22
- 230000002093 peripheral effect Effects 0.000 claims abstract description 17
- 229920002457 flexible plastic Polymers 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000011521 glass Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000003902 lesion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
Classifications
-
- 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
Abstract
This intraocular precision instruments is without frictional grip, including outer tube, inner core, push rod, hand handle and support base；Inner core is arranged in the middle part of outer tube, and several annular resilient collars are fixed in outer tube, and inner core middle section is fixed in the inner hole of several annular resilient collars；Outer tube upper side wall opening has assigned push rod, and push rod bottom end is connect with inner core, and top is fixed with hand handle；It is provided with support base above the outer tube of push rod periphery, push rod is movably arranged in support base, and an elastic piece is equipped at support base upper hollow, and elastic piece is set in the top peripheral of push rod；It is pressed in the lower front and back of elastic force effect that it is arranged elastic piece under hand handle front end and controls push rod, push rod passes down to pressure on inner core, inner core fine motion forward under push rod bottom forward thrust and the effect of peripheral annular elastic ring elastic force；Hand handle is unclamped, push rod resets, and inner core retracts backward under the effect of annular resilient collar elastic force.Inner core movement is accurate in place, and without friction between outer tube, and inner core can spring back rapidly reset when not in use.
Description
Technical field
The present invention relates to field of ophthalmological medical equipment, and in particular to a kind of intraocular precision instruments are without frictional grip.
Background technique
In implementing ophthalmologic operation, doctor often uses the precision instruments such as some miniature scissors, tweezers, glass cutting head,
Above-mentioned precision instruments are all the front ends for needing to be arranged in precision instruments handle.Existing precision instruments handle include outer tube, inner core,
Spring, push rod, support and hand handle；The middle part of the outer tube, inner core front end are arranged in along the outer tube length direction for the inner core
Equipped with spring, outer tube wall opening has assigned push rod, and push rod bottom end is connect with inner core side, terminates before push rod top surface and hand handle
Touching, is provided with support on the outer tube of push rod periphery；Operation is in use, what doctor connected if you need to operate precision instruments handle front end
When the precision instruments such as scissors, tweezers, glass cutting head, need to only press hand handle can push inner core Forward by push rod, and inner core squeezes again
Spring is pushed forward, and is driven the scissors, tweezers, glass of the front the precision instruments such as to cut off and expose outer tube and worked；When not in use, it cures
Raw to unclamp hand handle, push rod drives inner core to move back again, and spring reset can retract the precisions such as scissors, tweezers, the glass cutting head of the front
Instrument is hidden into outer tube.But many places have on handle when the front precision instruments that the precision instruments handle of this structure drives are mobile
Friction, setting in motion just now when pressing hand handle strength is more than stiction are less than initial again once movement kinetic force of friction
Stiction and be difficult to stop so that motion process be in pulse type, the bad control of precision, it is suddenly big or suddenly small entirely by doctors experience grasp
Control, since the precision instruments such as scissors, tweezers, the glass cutting head of the front are used in operated eye, if movement range is excessive,
Operation precision control is bad, can be not thorough to intraocular lesions tissue or processing or processed when damage other parts.
Summary of the invention
In order to solve the above technical problems, we have proposed a kind of intraocular precision instruments without frictional grip, due to its inner core outside
Enclose and be provided with annular resilient collar, inner core move forward when annular resilient collar also can fine motion forward, prevent inner core Forward amplitude it is excessive, energy
Move it is accurate in place, while without friction between outer tube, and can drive inner core rebound multiple rapidly when not in use in handle
Position.
In order to achieve the above objectives, technical scheme is as follows:
A kind of intraocular precision instruments are without frictional grip, including outer tube, inner core, push rod, hand handle and support base；The inner core edge
The middle part of the outer tube is arranged in the outer tube length direction, and is spaced admittedly between the interlude and outer tube wall of the inner core
Surely there are several annular resilient collars, the inner core middle section is fixed in the inner hole of several annular resilient collars；On the outer tube
Push rod is assigned at sidewall opening, the push rod bottom end is connect with the inner core upper side, under top and the hand handle front end
Surface is fixed；It is provided with hollow support base above the outer tube of the push rod periphery, the push rod is movably arranged on the support
In seat, an elastic piece is equipped at the support base upper hollow, the elastic piece is set in the top peripheral of the push rod；Operation
Shi doctor presses hand handle, and the lower front and back of elastic force effect that it is arranged elastic piece is pressed under the hand handle front end and controls push rod, described to push away
Bar passes down to pressure on inner core, and the inner core is under the effect of the elastic force of push rod bottom forward thrust and peripheral annular elastic ring
Fine motion forward；Stop operation Shi doctor unclamp hand handle, push rod reset, inner core peripheral annular elastic ring elastic force effect under backward
It retracts.
Preferably, elastic piece is equipped at the support base upper lumen, the elastic piece is set in the top of the push rod
Periphery.
Preferably, the annular resilient collar and elastic piece are rubber or flexible plastic material.
Preferably, outer tube leading portion portion surface is handled by frosted or annular knurl, to form coarse end.
Preferably, the outer tube front end is equipped with the end of thread.
Preferably, the outer tube rear end surface is handled by frosted or annular knurl, to form the coarse end in tail portion.
Through the above technical solutions, the present invention passes through interlude and outer tube of the precision instruments without frictional grip inner core within the eye
Several annular resilient collars are fixed at intervals between inner wall, inner core middle section is fixed in the inner hole of several annular resilient collars；Outer tube
Upper side wall opening has assigned push rod, and push rod bottom end is connect with inner core upper side, and top is fixed with hand handle front underside；It pushes away
It is provided with hollow support base above the outer tube of bar periphery, push rod is movably arranged in support base, is set at support base upper hollow
There is an elastic piece, elastic piece is set in the top peripheral of push rod；It operates Shi doctor and presses hand handle, be pressed in it under hand handle front end and be arranged
The lower front and back of the elastic force effect of elastic piece controls push rod, and push rod passes down to pressure on inner core, and inner core is pushed forward in push rod bottom
Fine motion forward under the effect of the elastic force of power and peripheral annular elastic ring；It stops operation Shi doctor and unclamps hand handle, push rod resets, and inner core exists
It is retracted backward under the elastic force effect of peripheral annular elastic ring.Since this intraocular precision instruments is arranged without the inner core periphery of frictional grip
Have an annular resilient collar, when inner core moves forward annular resilient collar also can fine motion forward, prevent inner core Forward amplitude excessive, its shifting can be made
It is dynamic accurate in place, while without friction between outer tube, and inner core rebound can be driven to reset rapidly when not in use in handle.To
Novel in design, structurally reasonable and good application effect is achieved the purpose that.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of intraocular precision instruments disclosed in the embodiment of the present invention without frictional grip main view；
Fig. 2 is the cross-sectional view of Fig. 1；
Fig. 3 is the enlarged drawing of part A in Fig. 2.
Number and corresponding component title represented by letter in figure:
1. 4. hand handle of outer tube 2. inner core, 3. push rod, 5. support base
6. coarse 9. end of thread of end of 7. elastic piece of annular resilient collar 8.
10. the coarse end in tail portion
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Below with reference to embodiment and specific embodiment, the present invention is described in further detail.
Embodiment
As shown in Figure 1, Figure 2 and Figure 3, a kind of intraocular precision instruments are without frictional grip, including outer tube 1, inner core 2, push rod 3,
Hand handle 4 and support base 5；The middle part of the outer tube 1 is arranged in along 1 length direction of outer tube for the inner core 2, and in the inner core
Several annular resilient collars 6 are fixed at intervals between 21 inner wall of interlude and outer tube, 2 middle section of inner core is fixed on the number
In the inner hole of a annular resilient collar 6；The 1 upper side wall opening of outer tube has assigned push rod 3,3 bottom end of push rod with it is described interior
The connection of 2 upper side of core, top is fixed with 4 front underside of hand handle；It is provided with above the outer tube 1 of 3 periphery of push rod
Hollow support base 5, the push rod 3 are movably arranged in the support base 5, and a bullet is equipped at 5 upper hollow of support base
Property piece 7, the elastic piece 7 are set in the top peripheral of the push rod 3；It operates Shi doctor and presses hand handle 4,4 front end of hand handle
Under be pressed in the lower front and back of elastic force effect that it is arranged elastic piece 7 and control push rod 3, pressure is passed down to inner core 2 by the push rod 3
On, the inner core 2 fine motion forward under the effect of the elastic force of 3 bottom forward thrust of push rod and peripheral annular elastic ring 6；When stopping operation
Doctor unclamps hand handle 4, and push rod 3 resets, and inner core 2 retracts backward under the elastic force effect of peripheral annular elastic ring 6.
Wherein, the annular resilient collar 6 and elastic piece 7 are rubber or flexible plastic material, control 2 He of inner core to adapt to it
The needs of 3 fine motion of push rod.Meanwhile it is hand-held when for the ease of doctor's operation, it prevents from skidding, the 1 leading portion portion surface of outer tube is ground
Sand or annular knurl processing, to form coarse end 8.1 rear end surface of outer tube is also handled by frosted or annular knurl, coarse to form tail portion
End 10, controls convenient for doctor in outer tube herein.1 front end of outer tube is equipped with the end of thread 9, with connect the scissors of front, tweezers,
The precision instruments such as glass cutting head.
In this example, this intraocular precision instruments is without frictional grip by being fixed on several cyclic springs in 2 middle section of inner core
In the inner hole of circle 6；1 upper side wall opening of outer tube has assigned push rod 3, and 3 bottom end of push rod is connect with 2 upper side of inner core, top with
4 front underside of hand handle is fixed；It is provided with hollow support base 5 above the outer tube 1 of 3 periphery of push rod, push rod 3 is movably arranged on branch
It supports in seat 5, an elastic piece 7 is equipped at 5 upper hollow of support base, elastic piece 7 is set in the top peripheral of push rod 3；It is cured when operation
Raw pressing hand handle 4 is pressed in the lower front and back of elastic force effect that it is arranged elastic piece 7 under 4 front end of hand handle and controls push rod 3, and the push rod 3 will
Pressure passes down on inner core 2, inner core 2 the elastic force of 3 bottom forward thrust of push rod and peripheral annular elastic ring 6 effect under forward
Fine motion；Stop operation Shi doctor unclamp hand handle 4, push rod 3 reset, inner core 2 peripheral annular elastic ring 6 elastic force effect under backward
It retracts.Since this intraocular precision instruments is provided with annular resilient collar 6,5 upper hollow of support base without 2 periphery of inner core of frictional grip
The top peripheral for being in push rod 3 is arranged with elastic piece 7, and doctor presses hand handle 4, is pressed in it under 4 front end of hand handle and is arranged elastic piece 7
The lower front and back control push rod 3 of elastic force effect can only front and back fine motion, when inner core 2 moves forward annular resilient collar 6 also can fine motion forward, in this way
It is prevented that inner core 2 moves forward, amplitude is excessive, can move it accurately in place, while without friction between outer tube 1, and in handle
The rebound of inner core 2 can be driven to reset rapidly when not in use.To reach novel in design, structurally reasonable and good application effect
Purpose.
Above-described is only a kind of intraocular precision instruments of the invention without frictional grip preferred embodiment, should be referred to
Out, for those of ordinary skill in the art, without departing from the concept of the premise of the invention, can also make several
Modification and improvement, these are all within the scope of protection of the present invention.
Claims (5)
1. a kind of intraocular precision instruments are without frictional grip, which is characterized in that including outer tube, inner core, push rod, hand handle and support base；
The middle part of the outer tube is arranged in along the outer tube length direction for the inner core, and in the interlude and outer tube wall of the inner core
Between be fixed at intervals with several annular resilient collars, the inner core middle section is fixed in the inner hole of several annular resilient collars；
The outer tube upper side wall opening has assigned push rod, and the push rod bottom end is connect with the inner core upper side, top with it is described
Hand handle front underside is fixed；Hollow support base, the push rod activity setting are provided with above the outer tube of the push rod periphery
In the support base, an elastic piece is equipped at the support base upper hollow, the elastic piece is set in the upper of the push rod
Portion periphery；It operates Shi doctor and presses hand handle, the lower front and back control of elastic force effect that it is arranged elastic piece is pressed under the hand handle front end
Push rod, the push rod pass down to pressure on inner core, and the inner core is in push rod bottom forward thrust and peripheral annular elastic ring
Elastic force effect under fine motion forward；It stops operation Shi doctor and unclamps hand handle, push rod resets, bullet of the inner core in peripheral annular elastic ring
It is retracted backward under power effect.
2. a kind of intraocular precision instruments according to claim 1 are without frictional grip, which is characterized in that the annular resilient collar
It is rubber or flexible plastic material with elastic piece.
3. a kind of intraocular precision instruments according to claim 2 are without frictional grip, which is characterized in that outer tube leading portion portion
Surface is handled by frosted or annular knurl, to form coarse end.
4. a kind of intraocular precision instruments according to claim 3 are without frictional grip, which is characterized in that the outer tube front end
Equipped with the end of thread.
5. a kind of intraocular precision instruments according to claim 4 are without frictional grip, which is characterized in that the outer tube tail end table
Face is handled by frosted or annular knurl, to form the coarse end in tail portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811490063.4A CN109431679B (en) | 2018-12-06 | 2018-12-06 | Friction-free handle of intraocular precision instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811490063.4A CN109431679B (en) | 2018-12-06 | 2018-12-06 | Friction-free handle of intraocular precision instrument |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109431679A true CN109431679A (en) | 2019-03-08 |
| CN109431679B CN109431679B (en) | 2024-02-06 |
Family
ID=65558342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811490063.4A Active CN109431679B (en) | 2018-12-06 | 2018-12-06 | Friction-free handle of intraocular precision instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109431679B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070052139A1 (en) * | 2005-08-10 | 2007-03-08 | Gilbert Scott J | Method for making a needle-free jet injection drug delivery device |
| DE102006000929A1 (en) * | 2006-01-05 | 2007-07-12 | *Acri.Tec AG Gesellschaft für ophthalmologische Produkte | Intra-eyepiece lens e.g. injector, implanting device, has cartridge assembly with injection part that encloses folding area, where gap length is lesser than cross section of folding area, so that area forms undercuts in intersection to gap |
| US20150038905A1 (en) * | 2013-05-03 | 2015-02-05 | Clearside Biomedical, Inc. | Apparatus and methods for ocular injection |
| CN210250248U (en) * | 2018-12-06 | 2020-04-07 | 苏州理想眼科医院有限公司 | Friction-free handle of intraocular precision instrument |
-
2018
- 2018-12-06 CN CN201811490063.4A patent/CN109431679B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070052139A1 (en) * | 2005-08-10 | 2007-03-08 | Gilbert Scott J | Method for making a needle-free jet injection drug delivery device |
| DE102006000929A1 (en) * | 2006-01-05 | 2007-07-12 | *Acri.Tec AG Gesellschaft für ophthalmologische Produkte | Intra-eyepiece lens e.g. injector, implanting device, has cartridge assembly with injection part that encloses folding area, where gap length is lesser than cross section of folding area, so that area forms undercuts in intersection to gap |
| US20150038905A1 (en) * | 2013-05-03 | 2015-02-05 | Clearside Biomedical, Inc. | Apparatus and methods for ocular injection |
| CN210250248U (en) * | 2018-12-06 | 2020-04-07 | 苏州理想眼科医院有限公司 | Friction-free handle of intraocular precision instrument |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109431679B (en) | 2024-02-06 |
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