CN213189817U

CN213189817U - Handheld eyelid pull hook convenient to adjust

Info

Publication number: CN213189817U
Application number: CN202021283857.6U
Authority: CN
Inventors: 李亚清; 董文红; 刘滢
Original assignee: Changsha Boshi Ophthalmic Hospital Co ltd
Current assignee: Changsha Boshi Ophthalmic Hospital Co ltd
Priority date: 2020-07-04
Filing date: 2020-07-04
Publication date: 2021-05-14
Anticipated expiration: 2030-07-04

Abstract

The utility model discloses a hand-held eyelid draw hook convenient to adjust, which comprises a handle, wherein the top of the handle is communicated with a box body, two ends of one side of the box body are symmetrically provided with draw hook bodies for opening upper and lower eyelids, and the handle and the interior of the box body are provided with adjusting mechanisms for adjusting the distance between the draw hook bodies; adjustment mechanism is including setting up the first lead screw of being connected in inside and one end of handle rather than the inner wall rotation, and first lead screw bottom is provided with first conical gear, first conical gear one side is provided with rather than the second conical gear of meshing, one side fixed connection pivot of first conical gear is kept away from to the second conical gear, the pivot extends to the outside and the first knob of fixedly connected with of handle, the inside fixed slide rail that is provided with and second lead screw vertically of one end of keeping away from the fourth conical gear of box body, the second lead screw rotates with the slide rail to be connected, conveniently draws to two and colludes the distance between the body and adjusts, convenient the dismantlement, simple structure, and the practicality is strong.

Description

Handheld eyelid pull hook convenient to adjust

Technical Field

The utility model relates to the technical field of ophthalmic medical equipment, specifically a hand-held type eyelid draws and colludes convenient to adjust.

Background

The eyelids, commonly known as eyelids, are located in front of the eyeball and form a barrier to protect the eyeball. The eyelids are divided into upper eyelids and lower eyelids, and the fissure between the upper eyelids and the lower eyelids is called the palpebral fissure; the medial and lateral ends of the palpebral fissure are called the inner and outer canthus, respectively. In medical clinic, when performing surgery and postoperative care on the eyes, the upper eyelid and the lower eyelid are often required to be pulled so as to observe internal organ structures or perform operations such as surgery, and the eyelid hook body is a tool for pulling the eyelid open during the ophthalmic examination or surgery.

The open distance of eyelid about current hand-held type eyelid draw-hook is inconvenient when using is adjusted according to actual conditions, influences the result of use, draws simultaneously and inconveniently dismantles between hook and the handle, inconvenient operation when drawing the hook part and need disinfect and change.

In response to the foregoing, an improved, easily adjustable, hand-held eyelid retractor is now devised.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a hand-held type eyelid draws and colludes convenient to adjust to solve the problem of proposing among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a hand-held eyelid draw hook convenient to adjust comprises a handle, wherein the top of the handle is communicated with a box body, two ends of one side of the box body are symmetrically provided with draw hook bodies used for opening upper and lower eyelids, and the handle and the box body are internally provided with adjusting mechanisms used for adjusting the distance between the draw hook bodies; the adjusting mechanism comprises a first screw rod which is arranged in the handle and one end of which is rotationally connected with the inner wall of the handle, a first bevel gear is arranged at the bottom end of the first screw rod, a second bevel gear meshed with the first bevel gear is arranged on one side of the first bevel gear, one side of the second bevel gear far away from the first bevel gear is fixedly connected with a rotating shaft, the rotating shaft extends to the outside of the handle and is fixedly connected with a first knob, the top end of the first screw rod extends to the inside of the box body and is provided with a third bevel gear, a second screw rod vertical to the first screw rod is arranged in the box body, a fourth bevel gear meshed with the third bevel gear is arranged on the second screw rod, a sliding rail vertical to the second screw rod is fixedly arranged at one end of the box body far away from the fourth bevel gear, the second screw rod is rotationally connected with the sliding rail, and a first sliding block is, the top of the first sliding block is rotatably connected with a first rotating plate and a second rotating plate, the sliding rail is provided with a second sliding block and a third sliding block in a sliding mode, the other end of the first rotating plate is rotatably connected with the top of the second sliding block, the second rotating plate is rotatably connected with the top of the third sliding block, and one side, away from the first sliding block, of the second sliding block and one side, away from the first sliding block, of the third sliding block are connected with a pull hook body through a connecting block.

Preferably, two one side fixedly connected with fixed block that the body of drawing colluding is close to the connecting block, the opening has been seted up in the fixed block, be provided with the recess in the opening, be provided with the lug that matches with the recess on the connecting block, the fixed block surface is provided with the thread groove, be connected through the screw cap between connecting block and the fixed block.

Preferably, the outer surface of the bottom end of the handle is provided with an anti-slip sleeve matched with the radian of a hand of a human body.

Preferably, an isosceles triangle is always formed between the first rotating plate, the second rotating plate and the sliding rail.

Preferably, the surface of the pull hook body is provided with a layer of rubber pad.

Preferably, the pull hook body is in an arc shape adapted to the eyes of a human body.

Preferably, be provided with driven gear in first conical gear bottom on the first lead screw, first knob below is provided with the second knob, one side fixedly connected with pivot that the second knob is close to the handle, the pivot extends to inside and fixedly connected with of handle and driven gear engaged with driving gear, the number of teeth on driving gear and the driven gear is the twice of first conical gear and second conical gear at least.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses be provided with adjustment mechanism in the device, drive second conical gear through rotating first knob, can drive first conical gear and rotate, thereby it rotates to drive first lead screw, drive third conical gear and rotate, can drive fourth conical gear and second lead screw and rotate, can make first slider drive first commentaries on classics board and second commentaries on classics board and remove along the second lead screw, first commentaries on classics board and second commentaries on classics board other end can drive second slider and third slider and remove along slide rail to opposite direction, thereby make two draw and collude the body and remove to opposite direction, be convenient for adjust two distances that draw and collude between the body, make things convenient for the doctor to adjust the open size of eyelid about the patient according to actual conditions, the practicality is stronger.

2. The utility model discloses be provided with the recess in the opening of fixed block among the device, establish the screw cap cover on the connecting block, insert the opening with the connecting block in, establish the one end that the screw cap is close to the fixed block on the fixed block through the thread groove cover, easy to assemble and dismantlement, the convenience will draw after using and collude the body and dismantle from the box body and disinfect down, draws simultaneously and colludes the body and damage convenient the change, the practicality is stronger.

3. The utility model discloses the handle lower extreme is provided with anti-skidding cover among the device, can increase the frictional force of hand and handle, and the handle slides in the hand when preventing to use, influences the result of use, and the rubber pad on draw-hook body surface can protect the eyelid, prevents to cause the damage to the eyelid in the use, can increase the frictional force of drawing-hook body and eyelid simultaneously, and the draw-hook body is the arc, can improve the effect of strutting the eye, and the practicality is strong.

4. The utility model discloses the number of teeth on driving gear and the driven gear among the device is the twice of first bevel gear and second bevel gear at least, drives driving gear and driven gear rotation through rotating the second knob to adjust two and draw the distance between the body of colluding, the distance of drawing the body of colluding that rotates that the second knob changes is less, can improve the accuracy of device, and the practicality is strong.

Drawings

Fig. 1 is a schematic view of a hand-held eyelid retractor for easy adjustment.

Fig. 2 is a schematic structural diagram of a handheld eyelid hook internal adjustment mechanism for easy adjustment.

Fig. 3 is an enlarged schematic view of a portion a of fig. 2 of a hand-held eyelid retractor for easy adjustment.

Fig. 4 is a schematic view of a groove in a hand-held eyelid retractor for easy adjustment.

The handle comprises a handle 1, a box 2, a box 3, a first screw rod, a first bevel gear 4, a second bevel gear 5, a first knob 6, a third bevel gear 7, a second screw rod 8, a fourth bevel gear 9, a first sliding block 10, a sliding rail 11, a first rotating plate 12, a second rotating plate 13, a second sliding block 14, a third sliding block 15, a connecting block 16, a pull hook body 17, a fixing block 18, an opening 19, a groove 20, a protruding block 21, a thread cap 22, a driven gear 23, a driving gear 24 and a second knob 25.

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 work belong to the protection scope of the present invention.

Example 1

Referring to fig. 1-4, in an embodiment of the present invention, a handheld eyelid retractor convenient to adjust includes a handle 1, the top of the handle 1 is communicated with a box body 2, two ends of one side of the box body 2 are symmetrically provided with retractor bodies 17 for opening upper and lower eyelids, and an adjusting mechanism for adjusting a distance between the retractor bodies 17 is arranged inside the handle 1 and the box body 2;

the adjusting mechanism comprises a first screw rod 3 which is arranged inside the handle 1 and one end of which is rotationally connected with the inner wall of the handle, a first bevel gear 4 is arranged at the bottom end of the first screw rod 3, a second bevel gear 5 which is meshed with the first bevel gear 4 is arranged on one side of the first bevel gear 4, one side of the second bevel gear 5 far away from the first bevel gear 4 is fixedly connected with a rotating shaft, the rotating shaft extends to the outside of the handle 1 and is fixedly connected with a first knob 6, the top end of the first screw rod 3 extends to the inside of the box body 2 and is provided with a third bevel gear 7, a second screw rod 8 which is perpendicular to the first screw rod 3 is arranged inside the box body 2, a fourth bevel gear 9 which is meshed with the third bevel gear 7 is arranged on the second screw rod 8, a sliding rail 11 which is perpendicular to the second screw rod 8 is fixedly arranged at one end of the inside the box body 2 far away from the fourth bevel gear 9, be provided with first slider 10 on the second lead screw 8, first slider 10 top is rotated and is connected with first commentaries on classics board 12 and second commentaries on classics board 13, slide on 11 and be provided with second slider 14 and third slider 15, the first commentaries on classics board 12 other end is rotated with second slider 14 top and is connected, second commentaries on classics board 13 rotates with third slider 15 top and is connected, one side that first slider 10 was kept away from to second slider 14 and third slider 15 all is connected with through connecting block 16 and draws and colludes body 17.

Two draw one side fixedly connected with fixed block 18 that colludes body 17 and be close to connecting block 16, opening 19 has been seted up in the fixed block 18, be provided with recess 20 in the opening 19, be provided with lug 21 with recess 20 matching on the connecting block 16, the 18 surface of fixed block is provided with the thread groove, be connected through screw cap 22 between connecting block 16 and the fixed block 18, establish the screw cap cover on the connecting block, insert the connecting block in the opening, establish the screw cap near the one end of fixed block on the fixed block through the thread groove cover, easy to assemble and dismantlement, the convenience is disinfected under drawing colluding the body and dismantling from the box body after using, draws simultaneously to collude the body and damages the convenient change, and the practicality is stronger.

The outer surface of the bottom end of the handle 1 is provided with an anti-slip sleeve matched with the radian of a human hand, so that the friction force between the hand and the handle can be increased, the handle is prevented from sliding at the hand when in use, the use effect is influenced, the use comfort is increased, and the practicability is high.

An isosceles triangle is always formed between the first rotating plate 12, the second rotating plate 13 and the sliding rail 11, when the first rotating plate and the second rotating plate are driven to slide on the sliding rail through the first sliding block, synchronous opening and closing can be achieved, and the practicability is high.

Draw and collude body 17 surface and be provided with the one deck rubber pad, can protect the eyelid, prevent to cause the damage to the eyelid part in the use, can increase the frictional force that draws and collude body and eyelid simultaneously, the practicality is stronger.

The pull hook body 17 is an arc shape adapted to the eyes of a human body, the effect of opening the eyes can be improved, and the practicability of the whole device is improved.

Example 2

The difference from example 1 is: be provided with driven gear 23 in 4 bottoms of first conical gear on the

first lead screw

3, 6 below of first knob are provided with second knob 25, one side fixedly connected with pivot that second knob 25 is close to handle 1, the pivot extends to handle 1 inside and fixedly connected with and driven gear 23 meshed driving gear 24, the number of teeth on driving gear 24 and the driven gear 24 is first conical gear 4 and second conical gear 5's twice at least, drives driving gear and driven gear through rotating the second knob and rotates to adjust two and draw the distance of colluding between the body, the distance of drawing the hook body that rotates that the second knob changed is less, can improve the accuracy of whole device.

The utility model discloses a theory of operation is: the first knob is rotated to drive the second bevel gear to rotate, the first bevel gear can be driven to rotate, so that the first screw rod is driven to rotate, the third bevel gear is driven to rotate, the fourth bevel gear and the second screw rod can be driven to rotate, the first slider can drive the first rotating plate and the second rotating plate to move along the second screw rod, the second slider and the third slider can be driven by the other end of the first rotating plate and the other end of the second rotating plate to move along the slide rail in opposite directions, so that the two pull hook bodies move in opposite directions, the distance between the two pull hook bodies can be conveniently adjusted, the second knob is rotated to drive the driving gear and the driven gear to rotate, so that the distance between the two pull hook bodies can be more precisely adjusted, a doctor can conveniently adjust the opening sizes of upper and lower eyelids of a patient according to actual conditions, the threaded cap is sleeved on the connecting block, the connecting block is inserted into the opening, the end of the threaded cap close to the fixed block is sleeved on the fixed block through the threaded groove, so that the threaded cap is convenient to mount and dismount, the pull hook body can be conveniently dismounted from the box body after use for sterilization, and meanwhile, the pull hook body is damaged and is convenient to replace, and the threaded cap is simple in structure, convenient to use and high in practicability.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A hand-held eyelid draw hook convenient to adjust comprises a handle (1), wherein the top of the handle (1) is communicated with a box body (2), two ends of one side of the box body (2) are symmetrically provided with draw hook bodies (17) used for opening upper and lower eyelids, and the hand-held eyelid draw hook is characterized in that adjusting mechanisms used for adjusting the distance between the draw hook bodies (17) are arranged inside the handle (1) and the box body (2);

adjustment mechanism is including setting up at handle (1) inside and one end rather than the first lead screw (3) that the inner wall rotation is connected, first lead screw (3) bottom is provided with first conical gear (4), first conical gear (4) one side is provided with second conical gear (5) rather than the meshing, one side fixed connection pivot of first conical gear (4) is kept away from in second conical gear (5), the pivot extends to handle (1) outside and first knob (6) of fixedly connected with, first lead screw (3) top extends to box body (2) inside and is provided with third conical gear (7), box body (2) inside be provided with first lead screw (3) vertically second lead screw (8), be provided with on second lead screw (8) with third conical gear (7) meshing fourth conical gear (9), the inside one end of keeping away from fourth conical gear (9) of box body (2) is fixed be provided with second lead screw(s),(s) and(s) 8) Vertically slide rail (11), second lead screw (8) rotate with slide rail (11) and are connected, be provided with first slider (10) on second lead screw (8), first slider (10) top is rotated and is connected with first commentaries on classics board (12) and second commentaries on classics board (13), it is provided with second slider (14) and third slider (15) to slide on slide rail (11), first commentaries on classics board (12) other end rotates with second slider (14) top and is connected, second commentaries on classics board (13) rotates with third slider (15) top and is connected, one side that first slider (10) were kept away from in second slider (14) and third slider (15) all is connected with through connecting block (16) and draws and colludes body (17).

2. The eyelid retractor convenient to adjust according to claim 1, wherein two sides of the retractor body (17) close to the connecting block (16) are fixedly connected with fixing blocks (18), an opening (19) is formed in each fixing block (18), a groove (20) is formed in each opening (19), a bump (21) matched with each groove (20) is formed on each connecting block (16), a thread groove is formed in the surface of each fixing block (18), and each connecting block (16) is connected with each fixing block (18) through a thread cap (22).

3. The eyelid retractor convenient for adjustment according to claim 1, wherein the outer surface of the bottom end of the handle (1) is provided with an anti-slip sleeve matching with the radian of the human hand.

4. An adjustable handheld eyelid retractor according to claim 1 wherein the first pivotal plate (12), the second pivotal plate (13) and the sliding track (11) form an isosceles triangle at all times.

5. An adjustable handheld eyelid retractor according to claim 1 wherein the surface of the retractor body (17) is provided with a rubber pad.

6. A conveniently adjustable handheld eyelid hook according to claim 1, characterized in that said hook body (17) is curved to fit the eye of a human.

7. The eyelid retractor convenient to adjust according to claim 1, wherein a driven gear (23) is arranged at the bottom of the first bevel gear (4) on the first lead screw (3), a second knob (25) is arranged below the first knob (6), a rotating shaft is fixedly connected to one side of the second knob (25) close to the handle (1), the rotating shaft extends into the handle (1) and is fixedly connected with a driving gear (24) meshed with the driven gear (23), and the number of teeth on the driving gear (24) and the driven gear (23) is at least twice that of the first bevel gear (4) and the second bevel gear (5).