CN210250248U - Friction-free handle of intraocular precision instrument - Google Patents
Friction-free handle of intraocular precision instrument Download PDFInfo
- Publication number
- CN210250248U CN210250248U CN201822046114.6U CN201822046114U CN210250248U CN 210250248 U CN210250248 U CN 210250248U CN 201822046114 U CN201822046114 U CN 201822046114U CN 210250248 U CN210250248 U CN 210250248U
- Authority
- CN
- China
- Prior art keywords
- push rod
- handle
- inner core
- outer tube
- elastic
- 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.)
- Withdrawn - After Issue
Links
- 230000002093 peripheral effect Effects 0.000 claims abstract description 11
- 239000004033 plastic Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 3
- 239000011521 glass Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000003068 static effect Effects 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
Images
Landscapes
- Prostheses (AREA)
Abstract
The intraocular precision instrument non-friction handle comprises an outer tube, an inner core, a push rod, a handle and a supporting seat; the inner core is arranged in the middle of the outer pipe, a plurality of annular elastic rings are fixed in the outer pipe, and the middle section of the inner core is fixed in inner holes of the annular elastic rings; a push rod is inserted into an opening on 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 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; the front end of the handle is pressed downwards under the elastic action of the elastic sheets sleeved on the handle to control the push rod forwards and backwards, the push rod transmits the pressure downwards to the inner core, and the inner core slightly moves forwards under the action of the front thrust at the bottom of the push rod and the elastic force of the peripheral annular elastic ring; the handle is loosened, the push rod is reset, and the inner core retracts backwards under the elastic action of the annular elastic ring. The inner core moves accurately in place, has no friction with the outer tube, and can rebound rapidly to reset when not in use.
Description
Technical Field
The utility model relates to an ophthalmology medical instrument field, concretely relates to intraocular precision apparatus does not have friction handle.
Background
In the operation of ophthalmology, doctors often use some miniature precision instruments such as scissors, tweezers, vitrectomy heads, etc., which are all required to be arranged at the front end of the handle of the precision instrument. The existing precision instrument handle comprises an outer tube, an inner core, a spring, a push rod, a support and a handle; the inner core is arranged in the middle of the outer pipe along the length direction of the outer pipe, a spring is arranged at the front end of the inner core, a push rod is inserted into an opening on the side wall of the outer pipe, 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 pipe at the periphery of the push rod; when the multifunctional forceps are used in an operation, if a doctor needs to operate precision instruments such as scissors, tweezers and a vitreous cutter which are connected with the front end of a precision instrument handle, the inner core can be pushed to move forwards through the push rod only by pressing the handle, and then the inner core extrudes the spring to push forwards and drives the precision instruments such as the scissors, the tweezers and the vitreous cutter in front of the inner core to expose out of the outer tube for working; when the device is not used, a doctor loosens the handle, the push rod drives the inner core to move backwards, and the spring resets to pull back the front scissors, tweezers, a glass cutting head and other precise instruments to hide the outer tube. However, when the front precision instrument driven by the precision instrument handle with the structure moves, friction exists at multiple positions on the handle, the handle starts to move only when the force of pressing the handle exceeds static friction force, once the dynamic friction force of the handle starts to move is smaller than the initial static friction force and is difficult to stop, the movement process is pulse-shaped, the precision is not well controlled, and the precision is almost completely controlled by the experience of a doctor.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the friction-free handle for the precision intraocular instrument is provided, and the annular elastic ring is arranged on the periphery of the inner core of the handle, so that the annular elastic ring can also slightly move forwards when the inner core moves forwards, the inner core is prevented from moving forwards to an overlarge extent, the inner core can be moved accurately in place, no friction exists between the inner core and the outer tube, and the inner core can be rapidly driven to rebound and reset when the handle is not used.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
an intraocular precision instrument frictionless handle comprises an outer tube, an inner core, a push rod, a handle and a supporting seat; the inner core is arranged in the middle of the outer pipe along the length direction of the outer pipe, a plurality of annular elastic rings are fixed between the middle section of the inner core and the inner wall of the outer pipe at intervals, and the middle section of the inner core is fixed in inner holes of the annular elastic rings; a push rod is inserted into an 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 on the periphery of the push rod, the push rod is movably arranged in the supporting seat, an elastic sheet is arranged in 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; when in operation, a doctor presses the handle, the front end of the handle is pressed down to control the push rod back and forth under the elastic action of the elastic sheet sleeved on the handle, the push rod transmits the pressure downwards to the inner core, and the inner core slightly moves forwards under the action of the front thrust at the bottom of the push rod and the elastic force of the peripheral annular elastic ring; when the operation is stopped, the doctor loosens the handle, the push rod resets, and the inner core retracts backwards under the elastic action of the peripheral annular elastic ring.
Preferably, an elastic sheet is arranged in 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 materials.
Preferably, the outer tube front section surface is sanded or knurled to form a roughened end.
Preferably, the front end part of the outer pipe is provided with a threaded end.
Preferably, the outer tube tail end surface is sanded or knurled to form a tail roughened end.
Through the technical scheme, a plurality of annular elastic rings are fixed between the middle section of the intraocular precision instrument frictionless handle 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 an opening on 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 down to control the push rod back and forth under the elastic action of the elastic sheet sleeved on the handle, the push rod transmits the pressure downwards to the inner core, and the inner core slightly moves forwards under the action of the front thrust at the bottom of the push rod and the elastic force of the peripheral annular elastic ring; when the operation is stopped, the doctor loosens the handle, the push rod resets, and the inner core retracts backwards under the elastic action of the peripheral annular elastic ring. Because the inner core periphery of this accurate apparatus in eye zero friction handle is provided with annular elastic ring, annular elastic ring also can the fine motion forward when the inner core antedisplacement, prevents that the inner core antedisplacement range is too big, enables its removal accuracy and targets in place, does not have the friction simultaneously between with the outer tube, and can drive the inner core rapidly and kick-back when the handle does not use and reset. Thereby the purposes of novel design, reasonable structure and good application effect are achieved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a front view of a frictionless handle of an intraocular precision instrument disclosed in 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.
The corresponding part names indicated by the numbers and letters in the drawings:
1. outer tube 2, inner core 3, push rod 4, handle 5, supporting seat
6. Annular elastic ring 7, elastic sheet 8, rough end 9, threaded end
10. Tail rough end
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The present invention will be described in further detail with reference to examples and embodiments.
Examples are given.
As shown in fig. 1, 2 and 3, the precision intraocular instrument frictionless handle comprises an outer tube 1, an inner core 2, a push rod 3, a handle 4 and a support 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 inner holes of the annular elastic rings 6; a push rod 3 is inserted into an opening on 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 3 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 of 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; during operation, a doctor presses the handle 4, the front end of the handle 4 is pressed down under the elastic action of the elastic sheet 7 sleeved on the handle to control the push rod 3 forwards and backwards, the push rod 3 transmits the pressure downwards to the inner core 2, and the inner core 2 slightly moves forwards under the action of the front thrust at the bottom of the push rod 3 and the elastic action of the peripheral annular elastic ring 6; when the operation is stopped, the doctor loosens the handle 4, the push rod 3 resets, and the inner core 2 retracts backwards under the elastic action of the peripheral annular elastic ring 6.
The annular elastic ring 6 and the elastic sheet 7 are made of rubber or elastic plastic materials so as to meet the requirement of controlling the micro motion of the inner core 2 and the push rod 3. Meanwhile, in order to facilitate the holding by the doctor during the operation and prevent the slipping, the surface of the front section of the outer tube 1 is frosted or knurled to form a rough end 8. The surface of the trailing end of the outer tube 1 is also sanded or knurled to form a trailing roughened end 10 for the physician to control at the outer tube. The front end of the outer tube 1 is provided with a threaded end 9 to connect with front scissors, tweezers, a glass cutting head and other precision instruments.
In this example, the precision intraocular instrument non-friction handle is fixed in the inner holes of a plurality of annular elastic rings 6 through the middle section of the inner core 2; a push rod 3 is inserted into an opening on 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 3 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 under the elastic action of the elastic sheet 7 sleeved on the handle to control the push rod 3 forwards and backwards, the push rod 3 transmits the pressure downwards to the inner core 2, and the inner core 2 slightly moves forwards under the action of the front thrust at the bottom of the push rod 3 and the elastic force of the peripheral annular elastic ring 6; when the operation is stopped, the doctor loosens the handle 4, the push rod 3 resets, and the inner core 2 retracts backwards under the elastic action of the peripheral annular elastic ring 6. Because this accurate apparatus in eye does not have friction handle's inner core 2 periphery is provided with annular elastic ring 6, the cavity is located the upper portion periphery cover of push rod 3 and is equipped with flexure strip 7 in supporting seat 5 upper portion, the doctor presses hand (hold) 4, the hand (hold) 4 front end pushes down and establishes the elasticity effect of flexure strip 7 under its cover and control push rod 3 can only fine motion around, annular elastic ring 6 also can fine motion forward when inner core 2 antedisplacement, just so can prevent that the antedisplacement range of inner core 2 is too big, it can make its removal accurate target in place, simultaneously and outer tube 1 between frictionless, and can drive inner core 2 resilience when the handle does not use and reset rapidly. Thereby the purposes of novel design, reasonable structure and good application effect are achieved.
What has been described above is only the preferred embodiment of the frictionless handle of the present invention for an intraocular precision instrument, and it should be noted that, for those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, and these all fall within the protection scope of the present invention.
Claims (5)
1. An intraocular precision instrument frictionless handle is characterized by comprising an outer tube, an inner core, a push rod, a handle and a supporting seat; the inner core is arranged in the middle of the outer pipe along the length direction of the outer pipe, a plurality of annular elastic rings are fixed between the middle section of the inner core and the inner wall of the outer pipe at intervals, and the middle section of the inner core is fixed in inner holes of the annular elastic rings; a push rod is inserted into an 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 on the periphery of the push rod, the push rod is movably arranged in the supporting seat, an elastic sheet is arranged in 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; when in operation, a doctor presses the handle, the front end of the handle is pressed down to control the push rod back and forth under the elastic action of the elastic sheet sleeved on the handle, the push rod transmits the pressure downwards to the inner core, and the inner core slightly moves forwards under the action of the front thrust at the bottom of the push rod and the elastic force of the peripheral annular elastic ring; when the operation is stopped, the doctor loosens the handle, the push rod resets, and the inner core retracts backwards under the elastic action of the peripheral annular elastic ring.
2. The frictionless handle for the intraocular precision instrument of claim 1 wherein the annular elastic ring and the elastic sheet are made of rubber or elastic plastic.
3. The precision intraocular instrument frictionless handle of claim 2, wherein the outer tube front section surface is frosted or knurled to form a rough end.
4. The frictionless handle for the precision intraocular instrument as claimed in claim 3, wherein the front end of the outer tube is provided with a threaded end.
5. The precision intraocular instrument frictionless handle of claim 4, wherein the outer tube tail end surface is frosted or knurled to form a tail rough end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822046114.6U CN210250248U (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 |
|---|---|---|---|
| CN201822046114.6U CN210250248U (en) | 2018-12-06 | 2018-12-06 | Friction-free handle of intraocular precision instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210250248U true CN210250248U (en) | 2020-04-07 |
Family
ID=70010923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822046114.6U Withdrawn - After Issue CN210250248U (en) | 2018-12-06 | 2018-12-06 | Friction-free handle of intraocular precision instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210250248U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109431679A (en) * | 2018-12-06 | 2019-03-08 | 苏州理想眼科医院有限公司 | A kind of intraocular precision instruments are without frictional grip |
-
2018
- 2018-12-06 CN CN201822046114.6U patent/CN210250248U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109431679A (en) * | 2018-12-06 | 2019-03-08 | 苏州理想眼科医院有限公司 | A kind of intraocular precision instruments are without frictional grip |
| CN109431679B (en) * | 2018-12-06 | 2024-02-06 | 苏州理想眼科医院有限公司 | Friction-free handle of intraocular precision instrument |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100475142C (en) | Centesis instrument | |
| US4026591A (en) | Contact lens handling tools | |
| US3635218A (en) | Combination bulb-piston syringe | |
| CN210250248U (en) | Friction-free handle of intraocular precision instrument | |
| US10179007B2 (en) | Reinforcing slider for surgical hand tool | |
| KR20120037480A (en) | Tympanic membrane pressure equalization tube delivery system | |
| US11986217B2 (en) | Apparatus for extraction of at least one element from a cavity and a pressure limitation apparatus | |
| US20180043110A1 (en) | Syringe plunger and pressure indicator | |
| JP6039190B2 (en) | Medical instruments | |
| CN108567435B (en) | Blood treatment device for hematology department | |
| CN109431679B (en) | Friction-free handle of intraocular precision instrument | |
| CN112690944B (en) | Sclera jacking positioner | |
| CN113081476A (en) | Surgical instrument for microscopic fundus surgery | |
| AU2018327087B2 (en) | Backflush needle | |
| CN208591101U (en) | Universal nerve root stripper under foramen intervertebrale lens | |
| CN203943723U (en) | Ear operation detacher | |
| CN218792515U (en) | Locator for breast plastic | |
| CN220877388U (en) | Adjustable negative pressure aspirator tip with scraping ring at head end | |
| CN211243315U (en) | Booster for turning eyelid | |
| CN215192885U (en) | Surgical instrument for microscopic fundus surgery | |
| US20070236655A1 (en) | Contact lens device to remove or assist in the removal of a contact lens | |
| JP2005334369A (en) | Puncturing needle and puncturing tool using it | |
| CN219229970U (en) | Tweezers for hair transplantation | |
| CN218589097U (en) | Obstetrical membrane rupture device | |
| US20160067082A1 (en) | Micro-balloon vitreous separator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20200407 Effective date of abandoning: 20240206 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20200407 Effective date of abandoning: 20240206 |