CN109431679B - Friction-free handle of intraocular precision instrument - Google Patents
Friction-free handle of intraocular precision instrument Download PDFInfo
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- CN109431679B CN109431679B CN201811490063.4A CN201811490063A CN109431679B CN 109431679 B CN109431679 B CN 109431679B CN 201811490063 A CN201811490063 A CN 201811490063A CN 109431679 B CN109431679 B CN 109431679B
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- push rod
- inner core
- outer tube
- handle
- elastic
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- 230000002093 peripheral effect Effects 0.000 claims abstract description 11
- 239000004033 plastic Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 239000011521 glass Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 230000003068 static effect Effects 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001575 pathological effect Effects 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
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- Health & Medical Sciences (AREA)
- Ophthalmology & Optometry (AREA)
- Heart & Thoracic Surgery (AREA)
- Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
Abstract
The friction-free handle of the intraocular precision instrument comprises an outer tube, an inner core, a push rod, a handgrip and a supporting seat; the inner core is arranged in the middle of the outer tube, a plurality of annular elastic rings are fixed in the outer tube, and the middle section of the inner core is fixed in the inner holes of the annular elastic rings; a push rod is inserted into the opening of the upper side wall of the outer tube, the bottom end of the push rod is connected with the inner core, and the top end of the push rod is fixed with the handle; a supporting seat is arranged above the outer tube on the periphery of the push rod, the push rod is movably arranged in the supporting seat, an elastic sheet is arranged at the hollow part of the upper part of the supporting seat, and the elastic sheet is sleeved on the periphery of the upper part of the push rod; the front end of the handle is pressed down to control the push rod back and forth under the action of the elasticity of the sleeved elastic sheet, the push rod transmits the pressure downwards to the inner core, and the inner core is jogged forward under the action of the front thrust of the bottom of the push rod and the elasticity of the peripheral annular elastic ring; the handle is loosened, the push rod is reset, and the inner core is retracted backwards under the elastic action of the annular elastic ring. The inner core moves accurately in place, friction is avoided between the inner core and the outer tube, and the inner core can rebound and reset rapidly when the inner core is not used.
Description
Technical Field
The invention relates to the field of ophthalmic medical appliances, in particular to a friction-free handle of an intraocular precision appliance.
Background
In performing ophthalmic surgery, doctors often use miniature scissors, forceps, and glass cutting heads, which are all required to be arranged at the front end of a precision instrument handle. The existing precision instrument handle comprises an outer tube, an inner core, a spring, a push rod, a support and a handgrip; the inner core is arranged in the middle of the outer tube along the length direction of the outer tube, the front end of the inner core is provided with a spring, a push rod is inserted into the opening of the side wall of the outer tube, the bottom end of the push rod is connected with the side surface of the inner core, the top surface of the push rod is contacted with the front end of the handle, and a support is arranged on the outer tube on the periphery of the push rod; when in operation, if a doctor needs to operate the precise instruments such as scissors, tweezers, glass cutting heads and the like connected with the front end of the precise instrument handle, the doctor can push the inner core to move forward by pressing the handle, the inner core extrudes the spring to push forward, and the precise instruments such as scissors, tweezers, glass cutting heads and the like in front of the inner core are driven to be exposed out of the outer tube to work; when the medical device is not used, a doctor releases the handle, the push rod drives the inner core to move backwards, and the spring is reset to pull back the front scissors, tweezers, glass cutting heads and other precise instruments to be hidden into the outer tube. However, when the front precise instrument driven by the precise instrument handle with the structure moves, friction is generated at a plurality of positions on the handle, the movement is started when the force of the pressing handle exceeds the static friction force, once the movement is started, the dynamic friction force is smaller than the initial static friction force and is difficult to stop, so that the movement process is in a pulse shape, the precision is not well controlled, the negligence is controlled by the experience of doctors, and because the front precise instruments such as scissors, tweezers, glass cutting heads and the like are used for eye surgery, if the movement amplitude is too large, the operation precision is not well controlled, the pathological tissues in eyes can be not thoroughly treated or are excessively damaged.
Disclosure of Invention
In order to solve the technical problem, we provide a friction-free handle of an intraocular precision instrument, because the periphery of an inner core of the handle is provided with an annular elastic ring, the annular elastic ring can also forward jog when the inner core moves forward, the inner core is prevented from moving forward too much in amplitude, the inner core can move accurately in place, meanwhile, no friction exists between the inner core and an outer tube, and the inner core can be quickly driven to rebound and reset when the handle is not used.
In order to achieve the above purpose, the technical scheme of the invention is as follows:
a friction-free handle of an intraocular precision instrument comprises an outer tube, an inner core, a push rod, a handgrip and a supporting seat; the inner core is arranged in the middle of the outer tube along the length direction of the outer tube, a plurality of annular elastic rings are fixed between the middle section of the inner core and the inner wall of the outer tube at intervals, and the middle section of the inner core is fixed in the inner holes of the annular elastic rings; a push rod is inserted into the opening of the upper side wall of the outer tube, the bottom end of the push rod is connected with the upper side surface of the inner core, and the top end of the push rod is fixed with the lower surface of the front end of the handle; a hollow supporting seat is arranged above the outer tube at the periphery of the push rod, the push rod is movably arranged in the supporting seat, an elastic sheet is arranged at the hollow part at the upper part of the supporting seat, and the elastic sheet is sleeved at the periphery of the upper part of the push rod; when the device is operated, a doctor presses the handle, the front end of the handle is pressed down to control the push rod back and forth under the action of the elastic force of the sleeved elastic piece, the push rod transmits the pressure downwards to the inner core, and the inner core is jogged forwards under the action of the front thrust of the bottom of the push rod and the elastic force of the peripheral annular elastic ring; when the operation is stopped, the doctor releases the handle, the push rod is reset, and the inner core is retracted backwards under the elastic action of the peripheral annular elastic ring.
Preferably, an elastic sheet is arranged at the inner cavity of the upper part of the supporting seat, and the elastic sheet is sleeved on the periphery of the upper part of the push rod.
Preferably, the annular elastic ring and the elastic sheet are made of rubber or elastic plastic.
Preferably, the outer tube front section surface is sanded or knurled to form a roughened end.
Preferably, the front end part of the outer tube is provided with a threaded end.
Preferably, the trailing surface of the outer tube is sanded or knurled to form a trailing roughened end.
According to the technical scheme, the annular elastic rings are fixed between the middle section of the inner core of the friction-free handle of the intraocular precise instrument and the inner wall of the outer tube at intervals, and the middle section of the inner core is fixed in the inner holes of the annular elastic rings; a push rod is inserted into the opening of the upper side wall of the outer tube, the bottom end of the push rod is connected with the upper side surface of the inner core, and the top end of the push rod is fixed with the lower surface of the front end of the handle; a hollow supporting seat is arranged above the outer tube at the periphery of the push rod, the push rod is movably arranged in the supporting seat, an elastic sheet is arranged at the hollow part at the upper part of the supporting seat, and the elastic sheet is sleeved at the periphery of the upper part of the push rod; when in operation, a doctor presses the handle, the front end of the handle is pressed downwards to control the push rod back and forth under the action of the elasticity of the sleeved elastic piece, the push rod transmits the pressure downwards to the inner core, and the inner core is jogged forwards under the action of the front thrust of the bottom of the push rod and the elasticity of the peripheral annular elastic ring; when the operation is stopped, the doctor releases the handle, the push rod is reset, and the inner core is retracted backwards under the elastic action of the peripheral annular elastic ring. Because the annular elastic ring is arranged on the periphery of the inner core of the friction-free handle of the intraocular precision instrument, the annular elastic ring can also forward micro-move when the inner core moves forward, so that the inner core is prevented from moving forward too much, the inner core can move accurately in place, meanwhile, no friction exists between the inner core and the outer tube, and the inner core can be quickly driven to rebound and reset when the handle is not used. Thereby achieving the purposes of novel design, reasonable structure and good application effect.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a front view of a frictionless handle of an intraocular precision instrument according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of FIG. 1;
fig. 3 is an enlarged view of a portion a in fig. 2.
Corresponding part names are indicated by numerals and letters in the drawings:
1. outer tube 2, inner core 3, push rod 4, handle 5 and supporting seat
6. Annular elastic ring 7, elastic sheet 8, rough end 9, threaded end
10. Tail rough end
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The present invention will be described in further detail with reference to examples and embodiments.
Examples
As shown in fig. 1, 2 and 3, a friction-free handle of an intraocular precision instrument comprises an outer tube 1, an inner core 2, a push rod 3, a handgrip 4 and a supporting seat 5; the inner core 2 is arranged in the middle of the outer tube 1 along the length direction of the outer tube 1, a plurality of annular elastic rings 6 are fixed between the middle section of the inner core 2 and the inner wall of the outer tube 1 at intervals, and the middle section of the inner core 2 is fixed in the inner holes of the plurality of annular elastic rings 6; a push rod 3 is inserted into the opening of the upper side wall of the outer tube 1, the bottom end of the push rod 3 is connected with the upper side surface of the inner core 2, and the top end of the push rod is fixed with the lower surface of the front end of the handle 4; a hollow supporting seat 5 is arranged above the outer tube 1 at the periphery of the push rod 3, the push rod 3 is movably arranged in the supporting seat 5, an elastic sheet 7 is arranged at the hollow part at the upper part of the supporting seat 5, and the elastic sheet 7 is sleeved at the periphery of the upper part of the push rod 3; when in operation, a doctor presses the handle 4, the front end of the handle 4 is pressed down to control the push rod 3 back and forth under the action of the elasticity of the sleeved elastic sheet 7, the push rod 3 transmits the pressure downwards to the inner core 2, and the inner core 2 is jogged forward under the action of the forward thrust of the bottom of the push rod 3 and the elasticity of the peripheral annular elastic ring 6; when stopping the operation, the doctor releases the handle 4, the push rod 3 resets, and the inner core 2 is retracted backwards under the elastic action of the peripheral annular elastic ring 6.
Wherein, the annular elastic ring 6 and the elastic sheet 7 are made of rubber or elastic plastic materials so as to adapt to the needs of controlling the inner core 2 and the push rod 3 to jog. Meanwhile, in order to facilitate the handling by a doctor, the front surface of the outer tube 1 is sanded or knurled to form a roughened end 8. The trailing surface of the outer tube 1 is also sanded or knurled to form a trailing roughened end 10 for ease of control by the practitioner at the outer tube site. The front end part of the outer tube 1 is provided with a threaded end 9 for connecting the front precise instruments such as scissors, tweezers, glass cutting heads and the like.
In the example, the friction-free handle of the intraocular precision instrument is fixed in the inner holes of a plurality of annular elastic rings 6 in the middle section of the inner core 2; a push rod 3 is inserted into the opening of the upper side wall of the outer tube 1, the bottom end of the push rod 3 is connected with the upper side surface of the inner core 2, and the top end of the push rod is fixed with the lower surface of the front end of the handle 4; a hollow supporting seat 5 is arranged above the outer tube 1 at the periphery of the push rod 3, the push rod 3 is movably arranged in the supporting seat 5, an elastic sheet 7 is arranged at the hollow part at the upper part of the supporting seat 5, and the elastic sheet 7 is sleeved at the periphery of the upper part of the push rod 3; when in operation, a doctor presses the handle 4, the front end of the handle 4 is pressed down to control the push rod 3 back and forth under the action of the elastic force of the sleeved elastic piece 7, the push rod 3 transmits the pressure downwards to the inner core 2, and the inner core 2 is jogged forward under the action of the forward thrust of the bottom of the push rod 3 and the elastic force of the peripheral annular elastic ring 6; when stopping the operation, the doctor releases the handle 4, the push rod 3 resets, and the inner core 2 is retracted backwards under the elastic action of the peripheral annular elastic ring 6. Because this accurate apparatus of eye does not have inner core 2 periphery of friction handle is provided with annular elastic ring 6, the cavity is in the upper portion periphery cover of push rod 3 in supporting seat 5 upper portion is equipped with elastic piece 7, doctor presses handle 4, handle 4 front end pushes down and establishes the elasticity effect of elastic piece 7 under its cover and control push rod 3 only can the fine motion back and forth, annular elastic ring 6 also can the fine motion forward when inner core 2 moves forward, just so can prevent inner core 2 forward movement range too big, can make its removal accurate in place, do not have the friction simultaneously with outer tube 1, and can drive inner core 2 resilience and reset rapidly when the handle is not used. Thereby achieving the purposes of novel design, reasonable structure and good application effect.
While there has been described what is considered to be a preferred embodiment of the friction-free handle of an intraocular precision device of the present invention, it should be understood by those skilled in the art that variations and modifications can be made without departing from the inventive concept of the present invention.
Claims (5)
1. The friction-free handle of the intraocular precision instrument is characterized by comprising an outer tube, an inner core, a push rod, a handgrip and a supporting seat; the inner core is arranged in the middle of the outer tube along the length direction of the outer tube, a plurality of annular elastic rings are fixed between the middle section of the inner core and the inner wall of the outer tube at intervals, and the middle section of the inner core is fixed in the inner holes of the annular elastic rings; a push rod is inserted into the opening of the upper side wall of the outer tube, the bottom end of the push rod is connected with the upper side surface of the inner core, and the top end of the push rod is fixed with the lower surface of the front end of the handle; a hollow supporting seat is arranged above the outer tube at the periphery of the push rod, the push rod is movably arranged in the supporting seat, an elastic sheet is arranged at the hollow part at the upper part of the supporting seat, and the elastic sheet is sleeved at the periphery of the upper part of the push rod; when the device is operated, a doctor presses the handle, the front end of the handle is pressed down to control the push rod back and forth under the action of the elastic force of the sleeved elastic piece, the push rod transmits the pressure downwards to the inner core, and the inner core is jogged forwards under the action of the front thrust of the bottom of the push rod and the elastic force of the peripheral annular elastic ring; when the operation is stopped, the doctor releases the handle, the push rod is reset, and the inner core is retracted backwards under the elastic action of the peripheral annular elastic ring.
2. The frictionless handle of an intraocular precision instrument according to claim 1, wherein the annular elastic ring and the elastic sheet are made of rubber or elastic plastic material.
3. The frictionless handle of an intraocular precision instrument according to claim 2, wherein the outer tube anterior segment surface is frosted or knurled to form a roughened end.
4. A friction-free handle for an intraocular precision instrument according to claim 3, wherein the outer tube front end portion is provided with a threaded end.
5. The frictionless handle of an intraocular precision instrument according to claim 4, wherein the outer tube tail end surface is sanded or knurled to form a tail roughened end.
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 CN109431679A (en) | 2019-03-08 |
| CN109431679B true CN109431679B (en) | 2024-02-06 |
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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 |
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| Country | Link |
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| CN (1) | CN109431679B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070055200A1 (en) * | 2005-08-10 | 2007-03-08 | Gilbert Scott J | Needle-free jet injection drug delivery device |
| CN116327482A (en) * | 2013-05-03 | 2023-06-27 | 科尼尔赛德生物医学公司 | Apparatus and method for ocular injection |
-
2018
- 2018-12-06 CN CN201811490063.4A patent/CN109431679B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
|---|---|
| CN109431679A (en) | 2019-03-08 |
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