CN208876974U - A kind of needle tweezer dual-purpose miniature capsulorhexis device - Google Patents
A kind of needle tweezer dual-purpose miniature capsulorhexis device Download PDFInfo
- Publication number
- CN208876974U CN208876974U CN201820990074.8U CN201820990074U CN208876974U CN 208876974 U CN208876974 U CN 208876974U CN 201820990074 U CN201820990074 U CN 201820990074U CN 208876974 U CN208876974 U CN 208876974U
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- CN
- China
- Prior art keywords
- needle
- handle
- capsulorhexis
- dual
- tweezer
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to ophthalmic instruments fields, more particularly to a kind of needle tweezer dual-purpose miniature capsulorhexis device, the needle tweezer dual-purpose miniature capsulorhexis device includes handle, the two sides of handle are provided with clamp arm, described clamp arm one end hinge connects handle, the other end is free end, clamp arm is opened and closed on handle, locking device is provided on the handle, handle is connected through a screw thread syringe needle at locking device, the syringe needle is exchangeable nested type syringe needle, it includes needle guard, needle core and needle point, needle core is arranged in needle guard, the end of needle core and vertically and needle core is arranged in needle point, the needle point has two panels；Fluid cylinder is provided in handle, two driving levers and a follower lever are provided on the fluid cylinder, the driving lever is connected in clamp arm, the follower lever is located at the centre of fluid cylinder and extends downwardly to be connect with needle core, it realizes and is switched between Tweezers for eye surgery and capsulorhexis needle by the needle point structure that two panels is capable of activity and locking, and make Tweezers for eye surgery in use, being controlled by clamp arm.
Description
Technical field
The utility model relates to ophthalmic instruments fields, and in particular to a kind of needle tweezer dual-purpose miniature capsulorhexis device.
Background technique
Capsulorhexis device is a kind of for carrying out the medical instrument of ophthalmologic operation, on the one hand existing capsulorhexis device is single capsulorhexis
Tweezer or capsulorhexis needle can not switch practical Tweezers for eye surgery or capsulorhexis needle in operating process simultaneously；On the other hand, existing capsulorhexis temporo is normal
Two leaf opening and closing forceps constructions are advised, the micro-incision of cataract operation is tended to cause different degrees of damage.
Utility model content
Above-mentioned to solve the problems, such as, the utility model provides a kind of needle tweezer dual-purpose miniature capsulorhexis device.
A kind of needle tweezer dual-purpose miniature capsulorhexis device, including handle, the two sides of handle are provided with clamp arm, are provided on the handle
Locking device, handle are connected through a screw thread syringe needle at locking device, and the syringe needle is exchangeable nested type syringe needle comprising
Needle guard, needle core and needle point, needle core are arranged in needle guard, and needle point is arranged in the end of needle core and vertically has with needle core, the needle point
Two panels；It is provided with fluid cylinder in handle, two driving levers and a follower lever are provided on the fluid cylinder, the driving lever is connected to
In clamp arm, the follower lever is located at the centre of fluid cylinder and extends downwardly to be connect with needle core.
Further scheme as the utility model: described clamp arm one end hinge connects handle, and the other end is free end, is made
Obtaining clamp arm can open and close on handle.
Further scheme as the utility model: the locking device is screw switch device, the locking device
Medial surface is in the up-small and down-big conical surface.
Further scheme as the utility model: the needle guard is divided into two sections, is interior eye section and external eyes section respectively, described
Interior eye section and external eyes section angle are 120 degree.
Further scheme as the utility model: it is provided with graduation mark on the needle guard, graduation mark is apart from needle point
5.5mm, the size that the graduation mark is used to that new hand to be assisted to control capsulorhexis.
Further scheme as the utility model: the diameter of the needle guard is 23G, meets miniature definition.
Further scheme as the utility model: being provided with tooth engaged on the inside of the needle point, grabbing when increasing closure
With joint efforts.
Further scheme as the utility model: structure of the handle at the position of locking device is can be to internal pressure
The paliform of contracting.
The utility model has the beneficial effects that the utility model structure novel, the needle point of activity and locking is capable of by two panels
Structure is realized and is switched between Tweezers for eye surgery and capsulorhexis needle, and as Tweezers for eye surgery in use, controlled by clamp arm,
It is easier to control than traditional Tweezers for eye surgery, damage caused by micro-incision during operation is smaller than traditional Tweezers for eye surgery.
Detailed description of the invention
Fig. 1 is a kind of needle tweezer dual-purpose miniature capsulorhexis device structural schematic diagram of the utility model.
Fig. 2 is a kind of Tweezers for eye surgery state diagram of needle tweezer dual-purpose miniature capsulorhexis device of the utility model.
Fig. 3 is needle point enlarged drawing under a kind of Tweezers for eye surgery state of needle tweezer dual-purpose miniature capsulorhexis device of the utility model.
Fig. 4 is a kind of capsulorhexis needle state diagram of needle tweezer dual-purpose miniature capsulorhexis device of the utility model.
Fig. 5 is needle point enlarged drawing under a kind of needle-shaped state of capsulorhexis of needle tweezer dual-purpose miniature capsulorhexis device of the utility model.
Fig. 6 is a kind of schematic diagram of internal structure of needle tweezer dual-purpose miniature capsulorhexis device handle of the utility model.
Fig. 7 is a kind of sectional view of the locking device of needle tweezer dual-purpose miniature capsulorhexis device of the utility model.
Fig. 8 is a kind of three-dimensional figure of needle tweezer dual-purpose miniature capsulorhexis device of the utility model.
In figure: 1- handle；2- clamp arm；3- locking device；4- syringe needle；5- needle guard；6- graduation mark；7- needle core；8- needle point；9-
Fluid cylinder；10- driving lever；11- follower lever.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only to explain this
Utility model is not used to limit the utility model.
As Figure 1-Figure 8, a kind of needle tweezer dual-purpose miniature capsulorhexis device, including handle 1, the two sides of handle 1 are provided with clamp arm
2,2 one end hinge of clamp arm connects handle 1, and the other end is free end, clamp arm 2 is opened and closed on handle 1, the hand
One end on handle 1 close to clamp arm free end is provided with locking device 3, and the locking device 3 is screw switch device, and handle 1 exists
Syringe needle 4 is connected through a screw thread at locking device 3, the syringe needle 4 is exchangeable nested type syringe needle comprising needle guard 5, needle core 7
With needle point 8, it is two sections that the needle guard 5, which is divided to, is interior eye section and external eyes section respectively, and the interior eye section and external eyes section angle are 120 degree,
Needle core 7 is arranged in needle guard 5, and needle point 8 is arranged in the end of needle core 7 and vertically with needle core 7, and the needle point has two panels；
The medial surface of the locking device 3 is in the up-small and down-big conical surface.
It is provided with fluid cylinder 9 in handle 1, two driving levers 10 and a follower lever 11, the master are provided on the fluid cylinder 9
Lever 10 is connected in clamp arm 2, and the follower lever 11 is located at the centre of fluid cylinder 9 and extends downwardly to be connect with needle core.
Graduation mark 6 is provided on the needle guard, graduation mark is apart from needle point 5.5mm, and the graduation mark is for assisting new manual control
The size of capsulorhexis processed.
The diameter of the needle guard 5 is 23G, meets miniature definition.
It is provided with tooth engaged on the inside of the needle point 8, grabs resultant force when increasing closure.
Structure of the handle 1 at the position of locking device 3 is the paliform that can be inwardly compressed.
The concrete operating principle of the utility model: a kind of needle tweezer dual-purpose miniature capsulorhexis device of the utility model closes up clamp arm 2,
Driving lever 10 moves up, and according to hydraulic principle, follower lever 11 is moved down, and pushes needle core 7 to stretch out needle guard 5, so that two panels needle point 8 be made to beat
It opens；Clamp arm 2 is opened, driving lever moves down, and follower lever moves up, and needle core 7 is pulled to retract needle guard, and under the constraint of needle guard, needle point 8 is closed
Hold together, at this point, locking device 3 moves down, and section is smaller and smaller if rotating locking apparatus 3, handle 1 is inwardly compressed, finally
Follower lever can be made to fix, can not moved up and down, clamp arm activity at this time is invalid, realizes locking, capsulorhexis needle is made when needle point closes up to be made
With, needle point open when do Tweezers for eye surgery use.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modification, equivalent replacement or improvement etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (7)
1. a kind of needle tweezer dual-purpose miniature capsulorhexis device, which is characterized in that including handle, the two sides of handle are provided with clamp arm, the folder
Arm one end hinge connects handle, and the other end is free end, and clamp arm is opened and closed on handle, and lock is provided on the handle
Tight device, handle are connected through a screw thread syringe needle at locking device, and the syringe needle is exchangeable nested type syringe needle comprising needle
Set, needle core and needle point, needle core are arranged in needle guard, and the end of needle core and vertically and needle core, the needle point have two is arranged in needle point
Piece；It is provided with fluid cylinder in handle, two driving levers and a follower lever are provided on the fluid cylinder, the driving lever is connected to folder
On arm, the follower lever is located at the centre of fluid cylinder and extends downwardly to be connect with needle core.
2. a kind of needle tweezer dual-purpose miniature capsulorhexis device according to claim 1, which is characterized in that the locking device is spiral
Switching device, the medial surface of the locking device are in the up-small and down-big conical surface.
3. a kind of needle tweezer dual-purpose miniature capsulorhexis device according to claim 1, which is characterized in that the needle guard is divided into two sections,
It is interior eye section and external eyes section respectively, the interior eye section and external eyes section angle are 120 degree.
4. a kind of needle tweezer dual-purpose miniature capsulorhexis device according to claim 1, which is characterized in that be provided with quarter on the needle guard
Spend line, the size that graduation mark apart from needle point 5.5mm, the graduation mark is used to that new hand to be assisted to control capsulorhexis.
5. a kind of needle tweezer dual-purpose miniature capsulorhexis device according to claim 1, which is characterized in that the diameter of the needle guard is
23G meets miniature definition.
6. a kind of needle tweezer dual-purpose miniature capsulorhexis device according to claim 1, which is characterized in that be provided on the inside of the needle point
Tooth engaged grabs resultant force when increasing closure.
7. a kind of needle tweezer dual-purpose miniature capsulorhexis device according to claim 1, which is characterized in that the handle is in locking device
Position at structure be the paliform that can be inwardly compressed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820990074.8U CN208876974U (en) | 2018-06-26 | 2018-06-26 | A kind of needle tweezer dual-purpose miniature capsulorhexis device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820990074.8U CN208876974U (en) | 2018-06-26 | 2018-06-26 | A kind of needle tweezer dual-purpose miniature capsulorhexis device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208876974U true CN208876974U (en) | 2019-05-21 |
Family
ID=66505774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820990074.8U Expired - Fee Related CN208876974U (en) | 2018-06-26 | 2018-06-26 | A kind of needle tweezer dual-purpose miniature capsulorhexis device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208876974U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111728768A (en) * | 2020-07-22 | 2020-10-02 | 郑州大学第一附属医院 | Anterior lens capsule scratching and tearing integrated equipment |
-
2018
- 2018-06-26 CN CN201820990074.8U patent/CN208876974U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111728768A (en) * | 2020-07-22 | 2020-10-02 | 郑州大学第一附属医院 | Anterior lens capsule scratching and tearing integrated equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190521 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |