CN111329652B

CN111329652B - Capsule cutting device for cataract surgery

Info

Publication number: CN111329652B
Application number: CN202010439782.4A
Authority: CN
Inventors: 周婷
Original assignee: Dongguan Hean Electromechanical Co ltd
Current assignee: CHONGQING BIO NEWVISION MEDICAL EQUIPMENT Ltd.
Priority date: 2020-05-22
Filing date: 2020-05-22
Publication date: 2020-08-18
Anticipated expiration: 2040-05-22
Also published as: CN111329652A

Abstract

The invention discloses a capsulotomy device for cataract surgery, which comprises a handle and a vertical cylinder, wherein the vertical cylinder is arranged inside the left side of the handle, the upper part of the outer wall of a first rotating shaft is rotatably connected with the handle through a third bearing, the outer wall of the first rotating shaft is fixedly connected with a first gear, the left side of the first gear is meshed and connected with a second gear, the inner wall of the second gear is fixedly connected with the vertical cylinder, and the inner wall and the outer wall of a fourth bearing are respectively fixedly connected with the vertical cylinder and the handle. This a cut bag device for cataract surgery, structure scientific and reasonable, convenience safe in utilization is provided with servo motor, cooperation between riser and the blade, make servo motor's output shaft drive first pivot and rotate, the first gear of first pivot accessible and second gear drive blade rotate simultaneously, patient's preceding membrane bag can be cut down to the pivoted blade, avoided prior art to carry out preceding membrane bag excision through the doctor is manual to doctor's requirement and the higher problem of clinical processing.

Description

Capsule cutting device for cataract surgery

Technical Field

The invention relates to the technical field of medical treatment, in particular to a capsulotomy device for cataract surgery.

Background

Cataracts are the most common cause of blindness and visual disability. The cataract is mainly treated by an operation clinically, the cure rate is high, the front capsule cutting is one of the most decisive steps in the cataract extraction, although the prior art can cut the front capsule, the prior art has the problems that the requirement and the clinical treatment for a doctor are high when the front capsule cutting is manually carried out by the doctor, the eye of the patient is easily injured due to too high speed or instability, the size of the front capsule which needs to be cut by different patients is inconvenient to adapt, the supporting problem that the high stability cannot be carried out on the blade position after the adjustment is finished is solved, and the position of the blade is changed due to the fact that the driving part is touched by mistake in the using process.

Disclosure of Invention

The invention aims to provide a capsulotomy device for cataract surgery, which solves the problem that the manual cutting of an anterior capsule by a doctor in the background technology has high requirements and clinical treatment on the doctor.

In order to achieve the purpose, the invention provides the following technical scheme: a capsulotomy device for cataract surgery comprises a handle and a vertical cylinder, wherein the vertical cylinder is arranged inside the left side of the handle, and the inside of the left side of the handle is rotationally connected with the vertical cylinder through a power assembly;

the power assembly comprises a first gear, a third bearing, a fourth bearing, a second gear, a servo motor and a first rotating shaft;

the utility model discloses a handle, including servo motor, handle, first bearing, first gear, servo motor's output shaft rigid coupling, servo motor's inner wall left side, servo motor's output shaft rigid coupling has first pivot, the outer wall top of first pivot is passed through the third bearing and is rotated with the handle and link to each other, the outer wall rigid coupling of first pivot has first gear, the left side meshing of first gear links to each other there is the second gear, the inner wall and the vertical cylinder of second gear are fixed continuous, the inside and outside two walls of fourth bearing link to each other with vertical cylinder and handle are fixed respectively.

Preferably, the transmission ratio between the first gear and the second gear is 3: 1.

preferably, a limiting assembly is arranged above the vertical cylinder;

the limiting assembly comprises a vertical rod, a top plate, a clamping block, a first spring, a sliding block, a handle and a second spring;

the lower extreme outside rigid coupling of roof has a plurality of montants, the montant is with the equal clearance fit of vertical cylinder, the below of montant is equipped with first spring, the upper and lower both sides of first spring are fixed continuous with montant and vertical cylinder respectively, the equal clearance fit of the inside left and right sides of roof has the slider, the upper and lower both ends of slider rigid coupling respectively have handle and fixture block, the fixture block is laminated each other with the upper end of vertical cylinder, the inboard of slider all is equipped with the second spring, the inside and outside both sides of second spring link to each other with roof and slider are fixed respectively.

Preferably, the outer wall of the handle is provided with an anti-slip sleeve for preventing slipping.

Preferably, the inclination of the inclined plane of the joint of the fixture block and the vertical cylinder is consistent.

Preferably, a clamping structure can be formed between the clamping block and the vertical cylinder.

Preferably, an adjusting component is arranged inside the vertical cylinder;

the adjusting component comprises a pin shaft, a sleeve plate, a supporting seat, a cross rod, a first bearing, a sleeve block, a friction plate, a screw rod, a second rotating shaft, a rotating handle, a second bearing and a supporting rod;

it is a plurality of the horizontal pole rigid coupling is inside in the lower extreme outside of a vertical section of thick bamboo respectively, the equal clearance fit of outer wall of horizontal pole has the lagging, the equal rigid coupling in upper end of lagging has the supporting seat, the top of supporting seat all is equipped with branch, the both sides of branch all rotate with lagging and supporting seat respectively through the round pin axle and link to each other, the inside screw thread of lagging links to each other there is the screw rod, both sides all rotate with a vertical section of thick bamboo through first bearing about the outer wall of screw rod and link to each other, the outer wall below of second pivot is rotated with the roof through the second bearing and is linked to each other, the equal rigid coupling in inboard of second pivot and screw rod has the friction disc, the outer wall upper end rigid coupling of second pivot.

Preferably, the second rotating shaft and the screw have a higher-level coaxiality precision, and the edge positions of the friction plates in the vertical direction are consistent.

Preferably, a plurality of the set blocks and the cross bars are distributed in a centrosymmetric manner by taking the vertical axis direction of the screw as a reference.

Preferably, the right side of the outer wall of the handle is processed with anti-slip lines.

Compared with the prior art, the invention has the beneficial effects that: this a cut sack device for cataract operation, structure scientific and reasonable, convenience safe in utilization:

1. this a cut cyst device for cataract surgery is provided with servo motor, first pivot, the second gear, the cooperation between vertical cylinder and the blade, makes servo motor's output shaft drive first pivot and rotates, and first pivot accessible first gear and second gear drive blade rotate simultaneously, and patient's preceding membrane bag can be cut down to the pivoted blade, has avoided prior art to carry out preceding membrane bag excision to doctor's requirement and the higher problem of clinical treatment through the doctor is manual.

2. This a cut cyst device for cataract surgery is provided with the cooperation between first gear, second gear and the servo motor, makes because the reduction gearing of first gear and second gear, realizes avoiding the too fast or unstable problem that causes the injury easily to patient's eye.

3. This a cut sack device for cataract surgery, be provided with and change the handle, the screw rod, the lagging, the blade, branch, the cover block, the round pin axle, the cooperation before friction disc and the riser, the rotatable handle that changes of user, the messenger changes and rotates the drive screw rod, realize the lagging and remove at the outer wall of screw rod, and then realize that the lagging drives a plurality of cover blocks and blade through branch and carry out synchronous motion, realize that the whole circle diameter that a plurality of blades formed adjusts, in order to adapt to the preceding membrane bag size of the required excision of different patients, the supporting problem that can't carry out high stability to blade department after having avoided prior art not convenient for adapt to the preceding membrane bag size of the required excision of different patients or the adjustment.

4. This a cut sack device for cataract surgery is provided with the blade, the handle, the fixture block, the riser, first spring, the friction disc, the cooperation between screw rod and the second pivot, has adjusted the position of blade after, can outwards promote the handle, makes the handle can drive the fixture block and outwards removes the block structure between fixture block and the riser, can receive the elasticity of first spring and realize reseing between two friction discs, avoids touching the position that the drive division leads to the blade at the in-process mistake that uses and changes.

5. This a cut cyst device for cataract surgery drives the blade through first gear and second gear and rotates, and patient's preceding membrane bag can be cut down to the pivoted blade, has avoided prior art to carry out preceding membrane bag excision through doctor's manual and has treated the higher problem with clinical treatment, simultaneously because the speed reduction of first gear and second gear, realizes avoiding speed too fast or unstable problem that causes the injury to patient's eye easily.

6. Before excision, a doctor can record the eyeball size of a patient and then calculate the size of an anterior capsule to be excised, then presses a top plate downwards to enable the top plate to drive a vertical rod to move downwards to extrude a first spring, meanwhile, the upper inner wall of a vertical cylinder can drive a clamping block and a sliding block to move outwards, the clamping block can be pulled back inwards by the elastic force of a second spring at a specific position in the continuous downward movement process of the clamping block, clamping between the clamping block and the vertical cylinder is realized, meanwhile, friction plates can move along with the clamping block to form a tightly-jointed state, a user can rotate a rotating handle at the moment, the rotating handle drives a screw rod to rotate, the sleeve plate moves on the outer wall of the screw rod, the sleeve plate drives a plurality of sleeve blocks and blades to move synchronously through a supporting rod, the diameter of a whole circle formed by a plurality of blades is adjusted to adapt to the sizes of the anterior capsules to be excised by different patients, the problem that the prior art is inconvenient to adapt to the sizes of the front membrane sacs which are required to be cut by different patients or cannot support the blades with high stability after adjustment is finished is solved.

7. This a cut sack device for cataract surgery, after the position of blade has been adjusted, can outwards promote the handle, make the handle can drive the fixture block and outwards remove, relieve the block structure between fixture block and the riser, can receive the elasticity of first spring and realize reseing between two friction discs, avoid touching the position that the drive division leads to the blade at the in-process mistake that uses and change.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the vertical tube, the latch and the slider in FIG. 1;

FIG. 3 is a schematic view of the handle, shaft and sleeve of FIG. 1;

FIG. 4 is a schematic view of the handle, the first gear and the servo motor of FIG. 1;

FIG. 5 is a schematic view of the handle, first spring and fourth bearing of FIG. 1;

FIG. 6 is a schematic view of the structure of the vertical tube, the first bearing and the support base in FIG. 1.

In the figure: 1. the handle, 2, the spacing subassembly, 201, the montant, 202, the roof, 203, the fixture block, 204, first spring, 205, the slider, 206, the handle, 207, the second spring, 3, the adjustment subassembly, 301, the round pin axle, 302, the lagging, 303, the supporting seat, 304, the horizontal pole, 305, first bearing, 306, the lagging, 307, the friction disc, 308, the screw rod, 309, the second pivot, 310, the twist grip, 311, the second bearing, 312, branch, 4, the power component, 401, first gear, 402, the third bearing, 403, the fourth bearing, 404, the second gear, 405, servo motor, 406, first pivot, 5, the anti-skidding line, 6, the blade, 7, the vertical cylinder.

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. 1-6, the present invention provides a technical solution: a capsule cutting device for cataract surgery comprises a handle 1 and a vertical cylinder 7, wherein the vertical cylinder 7 is arranged inside the left side of the handle 1 and limits the relative position of the handle 1 and the vertical cylinder 7, the inside of the left side of the handle 1 is rotationally connected with the vertical cylinder 7 through a power assembly 4, the power assembly 4 comprises a first gear 401, a third bearing 402, a fourth bearing 403, a second gear 404, a servo motor 405 and a first rotating shaft 406, the servo motor 405 is fixedly connected to the left side of the inner wall of the handle 1, the type of the servo motor 405 is MAXON, an output shaft of the servo motor 405 is fixedly connected with the first rotating shaft 406, the upper part of the outer wall of the first rotating shaft 406 is rotationally connected with the handle 1 through the third bearing 402, the handle 1 can rotationally support the first rotating shaft 406, the outer wall of the first rotating shaft 406 is fixedly connected with the first gear 401, the left side of the first gear 401 is meshed with the second gear 404, and the first rotating shaft 406 can drive the vertical cylinder 7 to rotate through the transmission of the first gear 401 and the second gear, the inner wall and the vertical cylinder 7 of second gear 404 are fixed to be connected to each other, and the inside and outside two walls of fourth bearing 403 are fixed with vertical cylinder 7 and handle 1 respectively and link to each other, and handle 1 can rotate fourth bearing 403 and support, and the drive ratio between first gear 401 and the second gear 404 is 3: 1, the transmission between the first gear 401 and the second gear 404 is a reduction transmission.

The limiting component 2 is installed above the vertical cylinder 7, the limiting component 2 comprises a vertical rod 201, a top plate 202, a fixture block 203, a first spring 204, a sliding block 205, a handle 206 and a second spring 207, the plurality of vertical rods 201 are fixedly connected to the outer side of the lower end of the top plate 202, the top plate 202 can drive the vertical rods 201 to move, the vertical rods 201 and the vertical cylinder 7 are in clearance fit, the first spring 204 is arranged below the vertical rod 201, the elastic coefficient K of the first spring 204 is 500N/m, the upper side and the lower side of the first spring 204 are fixedly connected with the vertical rods 201 and the vertical cylinder 7 respectively, the vertical rods 201 can extrude the first spring 204 by moving downwards, the sliding block 205 is in clearance fit with the left side and the right side inside of the top plate 202, the sliding block 205 can move inside the top plate 202, the handle 206 and the fixture block 203 are fixedly connected to the upper end and the lower end of the sliding block 205 respectively, the handle 206 and the fixture, the fixture block 203 can move downwards to move leftwards under the influence of the vertical cylinder 7, the inner sides of the sliding blocks 205 are respectively provided with a second spring 207, the elastic coefficient K of the second spring 207 is 300N/m, the inner side and the outer side of the second spring 207 are respectively fixedly connected with the top plate 202 and the sliding blocks 205, the sliding blocks 205 move outwards to stretch the second spring 207, the outer wall of the handle 206 is provided with an anti-skid sleeve, the inclined planes of the joint part of the fixture block 203 and the vertical cylinder 7 are consistent in gradient, the fixture block 203 is driven by the vertical cylinder 7, a clamping structure can be formed between the fixture block 203 and the vertical cylinder 7, and a structure with mutual clamping can be formed between the fixture block 203 and the vertical cylinder 7.

The adjusting component 3 is installed inside the vertical cylinder 7, the adjusting component 3 comprises a pin shaft 301, a sleeve plate 302, a supporting seat 303, cross rods 304, a first bearing 305, a sleeve block 306, a friction plate 307, a screw rod 308, a second rotating shaft 309, a rotating handle 310, a second bearing 311 and a supporting rod 312, the cross rods 304 are respectively and fixedly connected inside the outer side of the lower end of the vertical cylinder 7, the sleeve block 306 is in clearance fit with the outer wall of the cross rods 304, the sleeve block 306 can move on the outer wall of the cross rods 304, the supporting seat 303 is fixedly connected at the upper end of the sleeve block 306, the supporting rod 312 is arranged above the supporting seat 303, two sides of the supporting rod 312 are respectively and rotatably connected with the sleeve plate 302 and the supporting seat 303 through the pin shaft 301, the sleeve plate 302 can drive the supporting seat 303 and the sleeve block 306 to move through the supporting rod 312, the screw rod 308 is connected with the internal threads of the sleeve plate 302, the screw rod 308 can control the lifting of the sleeve plate 302 through the, the lower part of the outer wall of the second rotating shaft 309 is rotatably connected with the top plate 202 through a second bearing 311, friction plates 307 are fixedly connected with the inner sides of the second rotating shaft 309 and the screw rod 308, the second rotating shaft 309 and the screw rod 308 can be in transmission through the friction plates 307, the friction plates 307 are made of rubber materials with certain elasticity, the upper end of the outer wall of the second rotating shaft 309 is fixedly connected with a plurality of rotating handles 310, the rotating handles 310 can drive the second rotating shaft 309 to rotate, high-grade coaxiality precision is achieved between the second rotating shaft 309 and the screw rod 308, the edge positions in the vertical direction between the friction plates 307 are consistent, the bonding capability between the friction plates 307 is guaranteed, a plurality of sleeve blocks 306 and a cross rod 304 are symmetrically distributed by taking the vertical axis direction of the screw rod 308 as a reference, the relative positions of the plurality of sleeve blocks 306 and the cross rod 304 to the screw rod 308 are limited, anti-slip threads 5 are processed on the right side of the outer wall, the lower ends of the sleeve blocks 306 are fixedly connected with the blades 6, so that the sleeve blocks 306 can drive the blades 6 to move or rotate.

When the capsule cutting device for cataract surgery is needed to be used, firstly, a user can start the servo motor 405, the output shaft of the servo motor 405 drives the first rotating shaft 406 to rotate, meanwhile, the first rotating shaft 406 can drive the blade 6 to rotate through the first gear 401 and the second gear 404, the rotating blade 6 can cut the anterior capsule of a patient, the problems that the requirement of the doctor on manual anterior capsule cutting by the doctor in the prior art and the clinical treatment are high are solved, meanwhile, due to the speed reduction transmission of the first gear 401 and the second gear 404, the problem that the eye of the patient is easily damaged due to over-high speed or instability is solved, before the cutting treatment is carried out, the doctor can record the eyeball size of the patient and then calculate the size of the anterior capsule needing to be cut, then the top plate 202 is pressed downwards, so that the top plate 202 can drive the vertical rod 201 to move downwards to extrude the first spring 204, meanwhile, the upper inner wall of the vertical tube 7 can drive the fixture block 203 and the sliding block 205 to move outwards, and the fixture block 203 and the vertical tube 7 can be pulled back inwards by the elastic force of the second spring 207 at a specific position in the process of continuously moving downwards by the fixture block 203, so that the fixture block 203 and the vertical tube 7 are clamped, and meanwhile, the friction plates 307 can move along with the fixture block to form a tightly fit state, at the moment, a user can rotate the rotating handle 310, so that the rotating handle 310 drives the screw 308 to rotate, the sleeve plate 302 moves on the outer wall of the screw 308, the sleeve plate 302 drives a plurality of sleeve blocks 306 and blades 6 to synchronously move through the support rod 312, the full circle diameter formed by the plurality of blades 6 is adjusted, the size of the anterior capsule required to be cut by different patients is adapted, and the problem that the prior art is not convenient for adapting to the size of the anterior capsule required to be cut by different patients or cannot support the blades 6 with, after the position of the blade 6 is adjusted, the handle 206 can be pushed outwards, so that the handle 206 can drive the fixture block 203 to move outwards, the clamping structure between the fixture block 203 and the vertical cylinder 7 is released, the reset between the two friction plates 307 can be realized by the elastic force of the first spring 204, and the change of the position of the blade 6 caused by mistakenly touching the driving part in the using process is avoided.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.

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 an intercept a sac device for cataract surgery, includes handle (1) and vertical section of thick bamboo (7), the inside vertical section of thick bamboo (7) that are equipped with in left side of handle (1), its characterized in that: the inner part of the left side of the handle (1) is rotationally connected with the vertical cylinder (7) through the power assembly (4);

the power assembly (4) comprises a first gear (401), a third bearing (402), a fourth bearing (403), a second gear (404), a servo motor (405) and a first rotating shaft (406);

the servo motor (405) is fixedly connected to the left side of the inner wall of the handle (1), an output shaft of the servo motor (405) is fixedly connected with a first rotating shaft (406), the upper portion of the outer wall of the first rotating shaft (406) is rotatably connected with the handle (1) through a third bearing (402), a first gear (401) is fixedly connected to the outer wall of the first rotating shaft (406), the left side of the first gear (401) is meshed and connected with a second gear (404), the inner wall of the second gear (404) is fixedly connected with the vertical cylinder (7), and the inner wall and the outer wall of the fourth bearing (403) are fixedly connected with the vertical cylinder (7) and the handle (1) respectively; the transmission ratio between the first gear (401) and the second gear (404) is 3: 1; a limiting component (2) is arranged above the vertical cylinder (7);

the limiting assembly (2) comprises a vertical rod (201), a top plate (202), a clamping block (203), a first spring (204), a sliding block (205), a handle (206) and a second spring (207);

a plurality of vertical rods (201) are fixedly connected to the outer side of the lower end of the top plate (202), the vertical rods (201) are in clearance fit with the vertical barrel (7), a first spring (204) is arranged below the vertical rods (201), the upper side and the lower side of the first spring (204) are fixedly connected with the vertical rods (201) and the vertical barrel (7) respectively, sliding blocks (205) are in clearance fit with the left side and the right side of the inner portion of the top plate (202), handles (206) and clamping blocks (203) are fixedly connected to the upper end and the lower end of the sliding blocks (205) respectively, the clamping blocks (203) are attached to the upper end of the vertical barrel (7) mutually, second springs (207) are arranged on the inner side of the sliding blocks (205), and the inner side and the outer side of each second spring (207) are fixedly connected with the top plate (202;

an adjusting component (3) is arranged in the vertical cylinder (7);

the adjusting assembly (3) comprises a pin shaft (301), a sleeve plate (302), a supporting seat (303), a cross rod (304), a first bearing (305), a sleeve block (306), a friction plate (307), a screw rod (308), a second rotating shaft (309), a rotating handle (310), a second bearing (311) and a supporting rod (312);

a plurality of cross rods (304) are respectively and fixedly connected with the inner part of the outer side of the lower end of the vertical cylinder (7), the outer walls of the cross rods (304) are in clearance fit with sleeve blocks (306), the upper ends of the sleeve blocks (306) are fixedly connected with supporting seats (303), the supporting rods (312) are arranged above the supporting seats (303), the two sides of each supporting rod (312) are respectively connected with the sleeve plate (302) and the supporting seat (303) in a rotating way through pin shafts (301), the inner part of the sleeve plate (302) is connected with a screw rod (308) through threads, the upper side and the lower side of the outer wall of the screw rod (308) are rotationally connected with a vertical cylinder (7) through a first bearing (305), the lower part of the outer wall of the second rotating shaft (309) is rotationally connected with the top plate (202) through a second bearing (311), friction plates (307) are fixedly connected with the inner sides of the second rotating shaft (309) and the screw rod (308), a plurality of rotating handles (310) are fixedly connected to the upper end of the outer wall of the second rotating shaft (309); the plurality of the set blocks (306) and the cross rods (304) are distributed in a centrosymmetric manner by taking the vertical axis direction of the screw (308) as a reference; the anti-skidding line (5) of outer wall right side processing of handle (1), the equal rigid coupling of lower extreme of cover piece (306) has blade (6).

2. The capsulotomy device for cataract surgery according to claim 1, wherein: and an anti-slip sleeve for preventing slipping is arranged on the outer wall of the handle (206).

3. The capsulotomy device for cataract surgery according to claim 1, wherein: the inclined plane gradient of the joint of the fixture block (203) and the vertical cylinder (7) is consistent.

4. The capsulotomy device for cataract surgery according to claim 1, wherein: the clamping block (203) and the vertical cylinder (7) can form a clamping structure.