CN111249064B

CN111249064B - Straight retinal forceps with sawteeth

Info

Publication number: CN111249064B
Application number: CN202010168412.1A
Authority: CN
Inventors: 余井兵
Original assignee: Jiangsu Konska Medical Instrument Co ltd
Current assignee: Jiangsu Konska Medical Instrument Co ltd
Priority date: 2020-03-12
Filing date: 2020-03-12
Publication date: 2021-08-31
Anticipated expiration: 2040-03-12
Also published as: CN111249064A

Abstract

The invention relates to the technical field of ophthalmologic surgical instruments and discloses straight retina forceps with sawteeth, which comprises a fixed cylinder, wherein the fixed cylinder is arranged in a hollow manner, a handle is fixedly connected to the vertical side wall of one side outside the fixed cylinder, a fixed forceps foot is fixedly connected to one side outside the fixed cylinder, which is far away from the handle, the fixed cylinder is connected with a movable forceps foot corresponding to the fixed forceps foot through a sliding mechanism, and a positioning device is arranged in the fixed cylinder at a position corresponding to the sliding mechanism; the positioning device comprises a threaded hole, a screw rod and a positioning plate, the threaded hole is formed in the lower end of the fixed cylinder, the positioning plate is connected in the fixed cylinder in a sliding mode, the screw rod penetrates through the threaded hole and is connected with the threaded hole in a threaded mode, the upper end of the screw rod is connected to the lower end of the positioning plate in a rotating mode through a bearing, the sliding mechanism comprises a sliding block, a spring, a sliding rod, a channel and a connecting block, and the sliding block is connected in the fixed cylinder in a sliding mode. The straight retina forceps with the saw teeth has the advantages that the positioning mechanism cannot damage the retina and the like.

Description

Straight retinal forceps with sawteeth

Technical Field

The invention relates to the technical field of ophthalmic surgical instruments, in particular to a straight retina forceps with sawteeth.

Background

The retina is the inner layer of the eye globe and is divided into a blind part and a visual part. The blind part comprises a retina iris part and a retina ciliary body which are respectively attached to the inner surfaces of the iris and the ciliary body and are the components of the iris and the ciliary body.

When the retina is operated, the retina forceps need to be used, but the existing retina forceps can cause damage to the retina due to over-exertion during the use process.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides the straight-shaped retina forceps with the saw teeth, which has the advantages that the positioning mechanism can not damage the retina and the like, and solves the problem that the retina can be damaged due to excessive force in the use process of the existing retina forceps.

(II) technical scheme

In order to achieve the purpose that the positioning mechanism does not damage the retina and the like, the invention provides the following technical scheme: the straight retina forceps with the sawteeth comprises a fixed cylinder, wherein the fixed cylinder is arranged in a hollow mode, a handle is fixedly connected to the vertical side wall of one side outside the fixed cylinder, a fixed forceps foot is fixedly connected to the side, away from the handle, outside the fixed cylinder, the fixed cylinder is connected with a movable forceps foot corresponding to the fixed forceps foot through a sliding mechanism, and a positioning device is installed in the fixed cylinder corresponding to the sliding mechanism;

the positioning device comprises a threaded hole, a screw rod and a positioning plate, the threaded hole is formed in the lower end of the fixed cylinder, the positioning plate is connected into the fixed cylinder in a sliding mode, the screw rod penetrates through the threaded hole and is connected with the threaded hole in a threaded mode, and the upper end of the screw rod is connected to the lower end of the positioning plate in a rotating mode through a bearing.

Preferably, slide mechanism includes slider, spring, slide bar, passageway and connecting block, slider sliding connection is in the solid fixed cylinder, the both ends difference fixed connection of spring is on the corresponding position in the upper end of slider and the solid fixed cylinder, slide bar fixed connection is in the upper end of slider, the upper end of slide bar passes spring and solid fixed cylinder in proper order and upwards extends, the passageway is seted up on the lateral wall of solid fixed cylinder, connecting block sliding connection is in the solid fixed cylinder, the one end fixed connection that the connecting block is close to the slider is on the lateral wall of slider, remove tweezers foot fixed connection and keep away from one side of slider at the connecting block.

Preferably, a limiting groove is formed in the fixing barrel, a limiting block is connected to the limiting groove in a sliding mode, one end, far away from the bottom of the limiting groove, of the limiting block penetrates through a notch of the limiting groove and extends outwards, and the limiting block is fixedly connected to the corresponding side wall of the positioning plate.

Preferably, the limiting block is close to the one end of the limiting groove bottom and is provided with a ball groove, the ball groove is connected with a ball in a rolling manner, and one end, far away from the ball groove bottom, of the ball penetrates through the notch of the ball groove and extends outwards and is connected with the groove bottom of the limiting groove in a rolling manner.

Preferably, a stabilizer bar is fixedly connected to the channel in the vertical direction, penetrates through the connecting block and is connected with the connecting block in a sliding manner.

Preferably, the upper end of the sliding rod is fixedly connected with a pressing plate.

Preferably, the lower end of the screw rod is fixedly connected with a rotating handle, and the rotating handle is provided with anti-skid grains.

(III) advantageous effects

Compared with the prior art, the invention provides the straight retina forceps with the sawtooth, which has the following beneficial effects:

1. this straight shape area sawtooth retina tweezers, through setting up fixed cylinder, a handle, fixed tweezers foot, slide mechanism, remove the tweezers foot, positioner, screw rod and locating plate, when needs carry out the centre gripping to the retina, at first adjust the stroke of removing the tweezers foot through positioner, make the minimum distance between removal tweezers foot and the fixed tweezers foot can not cause the pressure wound to the retina, when the stroke of removing the tweezers foot is adjusted to needs, rotate the screw rod, under the effect of screw thread, the screw rod drives the locating plate and removes in fixed cylinder, the locating plate can play spacing effect to slide mechanism, and then prescribe a limit to the stroke of removing the tweezers foot.

2. This straight shape area sawtooth retina tweezers through setting up slide mechanism, slider, spring, slide bar, passageway and connecting block, when needs carry out the centre gripping to the retina, pushes down the slide bar, and the slide bar passes through the slider and drives the connecting block downstream, and the spring is stretched simultaneously, and the connecting block drives and removes the tweezers foot and move, removes the tweezers foot and fixes the tweezers foot and can carry out the centre gripping to the retina well.

Drawings

Fig. 1 is a schematic view of a straight retinal forceps with sawteeth according to the present invention;

fig. 2 is a schematic structural diagram of a straight retinal forceps with saw teeth according to the present invention;

FIG. 3 is an enlarged view of portion A of FIG. 2;

fig. 4 is an enlarged view of a portion B in fig. 3.

In the figure: the forceps comprise a fixed barrel 1, a handle 2, a fixed forceps foot 3, a sliding mechanism 4, a sliding block 41, a spring 42, a sliding rod 43, a channel 44, a connecting block 45, a movable forceps foot 5, a positioning device 6, a screw 61, a positioning plate 62, a limiting groove 7, a limiting block 8, a ball groove 9, a ball, a stabilizing rod 11, a pressing plate 12 and a rotating handle 13.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, a pair of straight retinal forceps with saw teeth comprises a fixed cylinder 1, wherein the fixed cylinder 1 is hollow, a handle 2 is fixedly connected to a vertical side wall of one side outside the fixed cylinder 1, a fixed forceps foot 3 is fixedly connected to one side outside the fixed cylinder 1 far away from the handle 2, the fixed cylinder 1 is connected with a movable forceps foot 5 corresponding to the fixed forceps foot 3 through a sliding mechanism 4, and a positioning device 6 is arranged in the fixed cylinder 1 corresponding to the sliding mechanism 4;

positioner 6 includes the screw hole, screw rod 61 and locating plate 62, the screw hole is seted up at the lower extreme of solid fixed cylinder 1, locating plate 62 sliding connection is in solid fixed cylinder 1, screw rod 61 passes the screw hole setting, and with screw hole threaded connection, the lower extreme at locating plate 62 is rotated through the bearing to the upper end of screw rod 61, when needing to carry out the centre gripping to the retina, at first adjust the stroke of removing tweezers foot 5 through positioner 6, make the minimum distance between removing tweezers foot 5 and the solid fixed tweezers foot 3 can not cause the pressure wound to the retina, when the stroke of removing tweezers foot 5 is adjusted to needs, rotate screw rod 61, under the effect of screw thread, screw rod 61 drives locating plate 4 and removes in solid fixed cylinder 1, locating plate 4 can play spacing effect to slide mechanism 4, and then prescribe a limit to the stroke of removing tweezers foot 5.

The sliding mechanism 4 comprises a sliding block 41, a spring 42, a sliding rod 43, a channel 44 and a connecting block 45, the sliding block 41 is connected in the fixed cylinder 1 in a sliding manner, two ends of the spring 42 are respectively and fixedly connected to the upper end of the sliding block 41 and the corresponding position in the fixed cylinder 1, the sliding rod 43 is fixedly connected to the upper end of the sliding block 41, the upper end of the sliding rod 43 sequentially penetrates through the spring 42 and the fixed cylinder 1 and extends upwards, the channel 44 is arranged on the side wall of the fixed cylinder 1, the connecting block 45 is connected in the fixed cylinder 1 in a sliding manner, one end of the connecting block 45 close to the sliding block 41 is fixedly connected to the side wall of the sliding block 41, the movable forceps foot 5 is fixedly connected to one side of the connecting block 45 away from the sliding block 41, when the retina needs to be clamped, the sliding rod 43 is pressed downwards, the sliding rod 43 drives the connecting block 45 to move downwards through the sliding block 41, meanwhile, the spring 43 is stretched, the connecting block 45 drives the movable forceps feet 5 to move, and the movable forceps feet 5 and the fixed forceps feet 3 can well clamp the retina.

Spacing groove 7 has been seted up in the solid fixed cylinder 1, and sliding connection has stopper 8 in the spacing groove 7, and the one end that stopper 8 kept away from the 7 tank bottoms of spacing groove passes the notch of spacing groove 7 and outwards extends, and fixed connection is on the corresponding lateral wall of locating plate 62 for locating plate 62 removes more reliable and more stable in solid fixed cylinder 1.

The ball groove 9 has been seted up to the one end that stopper 8 is close to the spacing groove 7 tank bottom, and ball groove 9 internal roll is connected with ball 10, and ball 10 is kept away from the one end of ball groove 9 tank bottom and is passed the notch of ball groove 9 and outwards extend, and with the tank bottom roll connection of spacing groove 7 for stopper 8 removes more smoothly in spacing groove 7.

Along fixedly connected with stabilizer bar 11 in the vertical direction in passageway 44, stabilizer bar 11 passes the connecting block 45 setting, and with sliding connection between the connecting block 45 for connecting block 45 moves more reliable and more stable in passageway 44.

The upper end of the sliding rod 43 is fixedly connected with a pressing plate 12, which is convenient for pressing the sliding rod 43.

The lower end of the screw 61 is fixedly connected with a rotating handle 13, and the rotating handle 13 is provided with anti-skid grains, so that the screw 61 can be conveniently rotated.

In conclusion, when the retina needs to be clamped, firstly, the stroke of the movable forceps foot 5 is adjusted through the positioning device 6, so that the minimum distance between the movable forceps foot 5 and the fixed forceps foot 3 cannot cause pressure injury to the retina, when the stroke of the movable forceps foot 5 needs to be adjusted, the screw 61 is rotated, under the action of the threads, the screw 61 drives the positioning plate 4 to move in the fixed cylinder 1, the positioning plate 4 can limit the sliding mechanism 4, the stroke of the movable forceps foot 5 is limited, when the retina needs to be clamped, the slide rod 43 is pressed downwards, the slide rod 43 drives the connecting block 45 to move downwards through the slide block 41, meanwhile, the spring 43 is stretched, the connecting block 45 drives the movable forceps foot 5 to move, and the movable forceps foot 5 and the fixed forceps foot 3 can clamp the retina well.

It is to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a straight form band saw tooth retina tweezers, includes fixed cylinder (1), its characterized in that: the fixing cylinder (1) is arranged in a hollow mode, a handle (2) is fixedly connected to the vertical side wall of one side outside the fixing cylinder (1), a fixing forceps foot (3) is fixedly connected to one side, far away from the handle (2), outside the fixing cylinder (1), the fixing cylinder (1) is connected with a moving forceps foot (5) corresponding to the fixing forceps foot (3) through a sliding mechanism (4), and a positioning device (6) is installed in the fixing cylinder (1) in a position corresponding to the sliding mechanism (4);

positioner (6) include screw hole, screw rod (61) and locating plate (62), the lower extreme at a fixed section of thick bamboo (1) is seted up to the screw hole, locating plate (62) sliding connection is in a fixed section of thick bamboo (1), screw rod (61) pass the screw hole setting, and with screw hole threaded connection, the lower extreme at locating plate (62) is connected in the rotation of bearing in the upper end of screw rod (61).

2. The straight retinal forceps with sawteeth of claim 1, wherein: the sliding mechanism (4) comprises a sliding block (41), a spring (42), a sliding rod (43), a channel (44) and a connecting block (45), the sliding block (41) is connected in the fixed cylinder (1) in a sliding way, two ends of the spring (42) are respectively and fixedly connected with the upper end of the sliding block (41) and the corresponding position in the fixed cylinder (1), the sliding rod (43) is fixedly connected with the upper end of the sliding block (41), the upper end of the sliding rod (43) sequentially penetrates through the spring (42) and the fixed cylinder (1) and extends upwards, the channel (44) is arranged on the side wall of the fixed cylinder (1), the connecting block (45) is connected in the fixed cylinder (1) in a sliding way, one end of the connecting block (45) close to the sliding block (41) is fixedly connected on the side wall of the sliding block (41), the movable forceps foot (5) is fixedly connected to one side, far away from the sliding block (41), of the connecting block (45).

3. The straight retinal forceps with sawteeth of claim 1, wherein: spacing groove (7) have been seted up in fixed section of thick bamboo (1), sliding connection has stopper (8) in spacing groove (7), the notch and the outside extension of spacing groove (7) are passed to the one end that spacing groove (7) tank bottom was kept away from in stopper (8), and fixed connection is on the corresponding lateral wall of locating plate (62).

4. The straight retinal forceps with sawteeth of claim 3, wherein: ball groove (9) have been seted up to stopper (8) one end that is close to spacing groove (7) tank bottom, roll in ball groove (9) and be connected with ball (10), ball (10) are kept away from the one end of ball groove (9) tank bottom and are passed the notch of ball groove (9) and outwards extend, and with the tank bottom roll connection of spacing groove (7).

5. The straight retinal forceps with sawteeth of claim 2, wherein: the stabilizer bar (11) is fixedly connected to the channel (44) in the vertical direction, and the stabilizer bar (11) penetrates through the connecting block (45) and is connected with the connecting block (45) in a sliding mode.

6. The straight retinal forceps with sawteeth of claim 2, wherein: the upper end of the sliding rod (43) is fixedly connected with a pressing plate (12).

7. The straight retinal forceps with sawteeth of claim 1, wherein: the lower end of the screw rod (61) is fixedly connected with a rotating handle (13), and anti-skid grains are arranged on the rotating handle (13).