CN201727637U

CN201727637U - Automatic capsule cutting device

Info

Publication number: CN201727637U
Application number: CN2009201686361U
Authority: CN
Inventors: 王伟; 李娜
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-07-23
Filing date: 2009-07-23
Publication date: 2011-02-02
Anticipated expiration: 2019-07-23

Abstract

The utility model relates to circular equipment for automatically cutting an anterior capsule into a circle with required diameter in an eye cataract surgery. An automatic capsule cutting device is characterized in that a capsule cutter is made of memory elastic metal; a cutter head can be manufactured into a plurality of shapes and the front part thereof can be bent into circles with different diameters, the stress can be straightened, and the circles can be recovered after external force is eliminated. The front part of a handle is replaceable, and application which corresponds to the cross section of the capsule cutter can be selected. A push rod is arranged in the handle, the cross section of the push rod is square, the front part of the push rod is provided with a clamping device, a cutter holder is put in and can be clamped after a screw is tightened, the rear part of the push rod is provided with a thread, a corresponding rotating pipe with an internal thread is arranged, and the push rod can be pushed out or pulled back by rotating the rotating pipe. The tail part of the rotating pipe is driven by a flexible shaft with an inner core. The inner core of the flexible shaft can be controller by a power control box to rotate positively and reversely. Or the capsule cutter can be directly and manually fixed, the handle is well installed, and the capsule cutter is retreated to the innermost only with the cutter head left outside the pipe. When cutting cornea, the device enters a pre-selected position from the cut, the cutter head pierces the anterior capsule, the inner core of the flexible shaft is rotated and transmitted by the control box or by hand and is transmitted into the handle, the push rod pushes the capsule cutter outside the pipe, the capsule cutter recovers to the original shape, the cutter head cuts or shears the anterior capsule around a circular arc-shaped line to form a circle with smooth edge.

Description

Automatic vesicle gashing device

Technical field

When the present invention is the ophthalmology cataract operation, automatically the anterior capsule cutting-up is sheared out the apparatus of the circle of a required diameter.

Technical background

Existing technology is that a capsule draws circle before tearing or cut with Tweezers for eye surgery or the manual control of discission needle head, does not have superb technology often to fail.Also have some inventions can not draw the circle of a smooth edge, cause operative failure.Perhaps tear the capsule apparatus and pass in and out the anterior chamber not easily.

Summary of the invention

The present invention has overcome deficiency of the prior art, just can stretch into and tear capsule device head by cutting very little mouth on the present modus operandi cornea, automatically from pipe, release and draw the capsule cutter by drawing capsule cutter recovery original form, draw or shear cyst membrane by the camber line of circle, obtain the circle of an entire required diameter on the pro-capsule, the cystotome of pulling back can be return in the pipe by former road, is easy to withdraw from the anterior chamber.

The present invention adopts following technical proposals: include dynamic Control case (12), the handle (1) that can connect flexible axle and have stroke capsule cutter (8) composition that the Memorability metal constitutes, handle inside is by flexible axle inner core (11), band female thread roll tube (2) and have the push rod (3) of clamping device to constitute, and the capsule cutter is drawn in the clamping device clamping.Special have the Memorability elastic metallic to make cystotome (8), and front curvature becomes the different-diameter circle, stressed variable straight, removes external force and can recover circular.Handle front portion (7) is replaceable, can select the application that adapts with stroke capsule cutter cross section.Push rod (3) is arranged in the handle, and the push rod cross section is square, and there is clamping device (6) the push rod front portion, but knife bar is put into back fastening nut clamping knife bar, there is screw thread at the push rod rear portion, and the female roll tube (2) that adapts with it rotates roll tube and can release or retract push rod.The roll tube afterbody is driven by the flexible axle that inner core is arranged (10).The flexible axle inner core can be by the control of dynamic Control case just, counter-rotating and rotating speed.Perhaps directly manually.

Advantage of the present invention is:

The requirement of surgical technic level is greatly lowered in 1 operation automatically.

2 pro-capsules are easy to make the entire circle of required diameter.

Cut a very little mouth stroke capsule cutter on 3 corneas and just can pass in and out the anterior chamber easily.

Description of drawings

Accompanying drawing is an axonometric chart of the present invention, and profile.

Fig. 1 is a control chamber, flexible axle, handle, full-view stereo figure.

Fig. 2 is for drawing the handle axonometric chart of capsule cutter in drawing in pipe the time.

Fig. 3 is for drawing the handle axonometric chart of capsule cutter outside releasing pipe the time.

Fig. 4 is for drawing the handle profile figure of capsule cutter in drawing in pipe the time.

Fig. 5 is for drawing the handle profile figure of capsule cutter outside releasing pipe the time.

Fig. 6, Fig. 7, Fig. 8, Fig. 9 are stroke capsule cutter of various difformity cutter heads.

(1) terminal shell (11) flexible axle inner core (12) the dynamic Control case control of capsule cutter (9) hold-down nut (10) flexible axle and foot-operated is drawn in handle (2) band female thread roll tube (3) push rod (4) roll tube retaining head (5) hold-down nut (6) clamping device (7) handle front portion (8)

The specific embodiment

Select to draw a capsule cutter (Fig. 7), will draw the capsule cutter and fix, handle installs, draw a capsule cutter fall back in only surplus cutter head outer at pipe as (Fig. 2 outward appearance, Fig. 4 section).Do corneal incision, enter from otch and to choose the position, cutter head thrusts cyst membrane, control chamber or hands rotate driving snake inner core (11), are transferred in the handle, and push rod promotes to draw capsule cutter (8) and goes out outside the pipe, draw the capsule cutter and recover original form (Fig. 3 outward appearance, Fig. 5 section), cyst membrane is drawn or sheared to cutter head by the camber line of circle, becomes an entire circle.Backward rotation, push rod retract draws capsule cutter (8), draws the capsule cutter and is deformed in the straight-bar return pipe (Fig. 2 outward appearance, Fig. 4 section).Withdraw from corneal incision, can undergo surgery next step.

Claims

1. automatic vesicle gashing device, include dynamic Control case, the handle that can connect flexible axle and have stroke capsule knife tackle one-tenth that the Memorability metal constitutes, handle inside is by flexible axle inner core, band female thread roll tube and have the push rod of clamping device to constitute, the capsule cutter is drawn in the clamping device clamping, drawing the capsule cutter can release and retract, draw the capsule cutter during release by the reminiscence original shape, draw the capsule cutter when retracting and to return in the handle.

2. vesicle gashing device according to claim 1 is characterized in that, draws the capsule cutter and is made of the metal with Memorability, and the front end natural torsion does not become straight when being subjected to external force to retract in the pipe circlewise when normally having external force, and it is square drawing capsule cutter cross section.

3. vesicle gashing device according to claim 1 is characterized in that the handle first half is connected with main body by nut, selects the different capsule cuttves of drawing just to select the first half of adaptation with it.

4. vesicle gashing device according to claim 1 is characterized in that, has the clamping device clamping to draw the capsule cutter before the drive link, and there is screw thread at the drive link rear portion, and the cross section is square.

5. vesicle gashing device according to claim 1 is characterized in that, but rotates female roll tube push-and-pull drive link.

6. vesicle gashing device according to claim 1 is characterized in that inner core is driven by driving snake.

7. vesicle gashing device according to claim 1 is characterized in that, can connect the dynamic Control case of flexible axle, can just change, and counter-rotating, stall, control rate is by foot-operated control.