CN221672280U - Artificial crystal cutting knife - Google Patents

Abstract

The utility model discloses an artificial crystal cutting knife, which relates to the technical field of medical appliances, and comprises a handle, a clamping arm, a cutting knife, a power key and a knife head rod, wherein a silica gel handle sleeve is arranged on the outer side of the handle, two cavities are symmetrically arranged in the handle, connecting rods are arranged in the two cavities, the arc clamping arm is more attached to the surface of an artificial crystal, the artificial crystal is not only easy to enter an eye through a notch, but also easy to be fixed in the cutting process, the operation of being convenient for, in sending into the eye with the arm clamp through little incision, control key, locating part and the tiny sawtooth antiskid structure of front end can effectively increase two upper and lower arm clamps the snap force to intraocular lens, be convenient for take out intraocular lens through little incision in order to reduce the incidence of complication, improve the operation success rate, the cutter can realize quick accurate cutting intraocular lens simultaneously, avoids damaging tissues such as corneal endothelium, iris, improves the security.

Description

Artificial crystal cutting knife

Technical Field

The utility model relates to the technical field of medical appliances, in particular to an artificial lens cutting knife.

Background

The main treatment means of cataract at present is ultrasonic emulsification combined with artificial lens implantation surgery, turbid lens is removed by ultrasonic emulsification, transparent artificial lens is implanted to improve vision function, the earliest artificial lens concept can be traced to the beginning of the 20 th century, along with the development of medicine and material science, the concept is gradually realized, the first artificial lens made of polymethyl methacrylate (PMMA) in the world of 1949 is implanted into eyes of patients for treating cataract, along with the progress of material science, the design and manufacture of the artificial lens become more complex and diversified, more materials can be selected to meet the requirements of different patients, such as silica gel, acrylic acid and the like, and the biocompatibility, optical performance and safety of the artificial lens are increasingly improved.

At present, the incision of the conventional cataract surgery is 2.2-3.0 mm, the diameter of the folding type artificial lens which is most widely used by implantation through a micro incision is usually 5.5-7.0 mm, and the artificial lens automatically expands into a sac after being pushed into the eye by an injector; when some abnormal conditions such as damage to the intraocular lens or errors in degree, and a new intraocular lens needs to be implanted again after the intraocular lens is taken out, the intraocular lens is usually cut into 2-3 pieces through a large incision and then taken out, and more operation risks exist in the process.

In the prior art, for example, a pair of special scissors for artificial crystal with the Chinese patent publication number of CN207101421U mainly comprises: the left piece and the right piece which are mutually hinged each other comprise a cutter head, a handle and a spring piece, wherein the cutter head is a bending cutter head which is bent towards the opening and closing direction of the scissors, the cutter tip of the cutter head is 1/4 circle, the cutter tips of the left cutter head and the right cutter head are combined to form a semicircle for cutting the intraocular lens into fragments, and the intraocular lens is taken out conveniently under the condition of smaller incision.

At present, the instruments which can be used for shearing the artificial lens in clinic mainly comprise an artificial lens shearing machine and an ophthalmic capsular bag shearing machine, but when the artificial lens shearing machine is operated, the cornea incision is often required to be enlarged due to the fact that the instruments are thick, the head end is sharp, tissues such as cornea endothelium and iris are easily damaged, and the shearing blade has no anti-skid design and has low practicability; when the ophthalmic capsular scissors are operated, the instrument is insufficient in fineness strength, the intraocular lens is difficult to cut, the intraocular lens is easy to suddenly twist due to excessive force to damage tissues, the instrument lacks practical value under the condition of taking out the high-hardness intraocular lens, and an intraocular lens cutting knife is provided for solving the problems.

Disclosure of utility model

The utility model aims to solve the problems that in the prior art, when an artificial lens is operated, the instrument is thick and needs to enlarge a cornea incision, the head end is sharp, and tissues such as cornea endothelium, iris and the like are easy to damage; the utility model provides an artificial lens cutting knife, which is characterized in that when the ophthalmic capsular scissors are operated, the instrument is not thin enough in strength, the artificial lens is difficult to cut, and the problem that the artificial lens is suddenly twisted and damages tissues is easily caused by excessive force.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides an intraocular lens cutting knife, includes handle, centre gripping arm, cutting knife, power key and tool bit pole, the outside of handle is provided with silica gel handle cover, just two cavities have been seted up to the inside symmetry of handle, two the inside of cavity is provided with the connecting rod, the one end of centre gripping arm and the one end fixed connection of connecting rod, just the other end of centre gripping arm is provided with anti-skidding structure, trapezoidal storehouse has been seted up to the one end of handle, just the other end of handle and the one end fixed connection of power key, the one end of tool bit pole and the one end fixed connection of cutting knife, the inside of handle is provided with the motor.

Preferably, the outer wall of the handle is symmetrically and movably connected with two control keys, and one ends of the two control keys are uniformly provided with a plurality of limiting parts.

Preferably, the cutting knife is in a circular sheet shape, and the anti-skid structure is in a saw tooth shape.

Preferably, the clamping arm, the cutting knife and the connecting rod are all made of martensitic stainless steel materials.

Preferably, the length of the clamping arm is 8mm, the width of the clamping arm is 2mm, the diameter of the cutting knife is 1.5mm, and the length of the handle is 80mm.

Compared with the prior art, the utility model has the advantages and positive effects that:

1. According to the utility model, by arranging the clamping arms, the handles and the connecting rods, when an operator needs to take out the intraocular lens, the friction force is increased through the anti-slip layer of the silica gel handle sleeve, the phenomenon of slipping of hands is prevented, the operator can operate the control keys and the clamping arms by one hand, the arc-shaped clamping arms are more attached to the surface of the intraocular lens, the intraocular lens is facilitated to enter eyes through the incisions, the intraocular lens is also facilitated to be fixed in the cutting process, the operation is facilitated, the clamping arms are fed into the eyes through the small incisions of 2.4mm, the biting force of the upper clamping arm and the lower clamping arm on the intraocular lens can be effectively increased through the control keys, the limiting piece and the fine sawtooth anti-slip structure at the front end, the occurrence of the phenomenon that the original intraocular lens is thick and the situation that the corneal incision needs to be enlarged due to slipping is avoided, the fact that the intraocular lens is needed to be cut is facilitated to take out by the small incisions, the complication rate is reduced, and the operation success rate is improved.

2. According to the utility model, the cutting knife, the knife head rod and the motor are arranged, the pushing of the vertical cutting knife is controlled through the power key, the rapid and accurate cutting of the artificial lens is realized, the conditions of longer operation time and torsion of the artificial lens caused by insufficient shearing strength of the original artificial lens are avoided, the upper and lower parts of the cutting knife are protected by the clamping arms in the complete cutting process, the damage to tissues such as cornea endothelium and iris is avoided, the cutting knife head can be retracted into the handle after the cutting is completed, the safety is improved, and the postoperative cutting head, the clamping arms and the silica gel handle sleeve can be independently disassembled for disinfection and sterilization, so that the practicability of the artificial lens cutting knife is improved.

Drawings

Fig. 1 is a schematic perspective view of an intraocular lens cutting blade according to the present utility model;

Fig. 2 is a schematic structural view of a connecting rod of an intraocular lens cutter according to the present utility model;

FIG. 3 is a top view of an intraocular lens cutting blade according to the present utility model;

FIG. 4 is a schematic front view of an intraocular lens cutting blade according to the present utility model;

FIG. 5 is a plan view of a silicone handle sleeve of an intraocular lens cutting device according to the present utility model;

FIG. 6 is a side view of an intraocular lens cutting device according to the present utility model in a rest position;

FIG. 7 is a side view showing the working position of an intraocular lens cutting blade according to the present utility model;

Fig. 8 is a side view of an intraocular lens cutting blade according to the present utility model.

Legend description: 1. a handle; 2. a control key; 3. a clamping arm; 4. a cutting knife; 5. an anti-slip structure; 6. a trapezoid bin; 7. a power key; 8. a cutter head rod; 9. a motor; 10. a cavity; 11. a silica gel handle sleeve; 12. a limiting piece; 13. and (5) connecting a rod.

Detailed Description

In order that the above objects, features and advantages of the utility model will be more clearly understood, a further description of the utility model will be rendered by reference to the appended drawings and examples. It should be noted that, without conflict, the embodiments of the present utility model and features in the embodiments may be combined with each other.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, but the present utility model may be practiced otherwise than as described herein, and therefore the present utility model is not limited to the specific embodiments of the disclosure that follow.

Example 1

As shown in fig. 1-8, the utility model provides an artificial crystal cutter, which comprises a handle 1, a clamping arm 3, a cutter 4, a power key 7 and a cutter head rod 8, wherein a silica gel handle sleeve 11 is arranged on the outer side of the handle 1, two cavities 10 are symmetrically arranged in the handle 1, a connecting rod 13 is arranged in the two cavities 10, one end of the clamping arm 3 is fixedly connected with one end of the connecting rod 13, the other end of the clamping arm 3 is provided with an anti-slip structure 5, one end of the handle 1 is provided with a trapezoid bin 6, the other end of the handle 1 is fixedly connected with one end of the power key 7, one end of the cutter head rod 8 is fixedly connected with one end of the cutter 4, a motor 9 is arranged in the handle 1, two control keys 2 are symmetrically and movably connected with the outer wall of the handle 1, and one ends of the two control keys 2 are uniformly provided with a plurality of limiting pieces 12.

The specific arrangement and function of the present embodiment will be specifically described below: the surface of the handle 1 is provided with a silica gel handle sleeve 11, the outer side of the silica gel handle sleeve 11 is provided with anti-slip lines, and the control key 2 is subjected to surrounding treatment to ensure the sterility principle; the upper clamping arm 3 and the lower clamping arm 3 both comprise a front-end serrated anti-skid structure 5, the anti-skid structure 5 can limit the movement of the artificial lens, and the upper control key 2 and the lower control key 2 are respectively provided with a limiting piece 12 and comprise three adjustable gears; the clamping range of the clamping arms 3 can be controlled by the aid of the control key 2 in a vertically moving mode by means of the clamping arms 3 and the cutting knife 4 in a matched mode, the two clamping arms 3 cannot loosen in the clamping process can be guaranteed through the limiting piece 12, the power key 7 controls the switch of the motor 9 and the expansion and contraction of the knife head rod 8, and therefore the cutting direction of the cutting knife 4 is determined.

Example two

As shown in fig. 4, the cutter 4 is in a circular sheet shape, the anti-skid structure 5 is in a zigzag shape, the clamping arm 3, the cutter 4 and the connecting rod 13 are made of martensitic stainless steel materials, the length of the clamping arm 3 is 8mm, the width is 2mm, the diameter of the cutter 4 is 1.5mm, and the length of the handle 1 is 80mm.

The effect that its whole embodiment reached is, through setting up the arc centre gripping arm 3 of laminating intraocular lens surface, has both been favorable to entering into the eye through the incision, is favorable to fixed intraocular lens in cutting process again, and the operation of being convenient for, and the cutter 4 moves between two centre gripping arms 3, can reduce the cutter head of cutter 4 to the damage risk of tissue such as cornea endothelium, iris at the operation in-process.

The application method and the working principle of the device are as follows: the utility model provides an synthesize ophthalmic precision surgery science, mechanical dynamics angle, formulate antiskid, electronic, repeatedly usable's technical scheme principle, provide an ophthalmic artificial crystal cutting knife, it mainly includes: the upper clamping arm 3, the lower clamping arm 3, the cutting knife 4, the handle 1, the two connecting rods 13 and the internal circuit system are all made of martensitic stainless steel materials, the length of the clamping arm 3 is 8mm, the width is 2mm, the diameter of the cutting knife 4 is 1.5mm, and the length of the handle 1 is 80mm;

The upper clamping arm 3 and the lower clamping arm 3 are connected with one end of the handle 1 through two connecting rods 13, the upper clamping arm 3 and the lower clamping arm 3 both comprise a front-end serrated anti-skidding structure 5, the anti-skidding structure 5 can limit the movement of an artificial lens, the upper control key 2 and the lower control key 2 are respectively provided with a limiting piece 12 and are adjustable in three gears, the surface of the handle 1 is provided with a silica gel handle sleeve 11, anti-skidding lines are arranged on the outer side of the silica gel handle sleeve 11, and surrounding treatment is carried out at the control key 2, so that the sterility principle is ensured; the handle 1 can contain a connecting rod 13 (arranged in a cavity 10), a cutter head rod 8 (an electric telescopic structure), a trapezoid bin 6, a cutter head motor 9 and a power circuit, the cutter 4 is connected with one end of the handle 1 through the telescopic cutter head rod 8, the clamping arms 3 are arc-shaped, and the cutter 4 is circular and flaky and can be retracted into the trapezoid bin 6 at one end of the handle 1; when an artificial lens is cut, the clamping arms 3 and the cutting knife 4 are matched for operation, the clamping range of the clamping arms 3 can be controlled by the up-and-down movement of the control key 2, the two clamping arms 3 can be prevented from loosening in the clamping process by the limiting piece 12, the motor 9 is powered by a 3v battery, and the power key 7 controls the switch of the motor 9 and the expansion and contraction of the knife head rod 8, so that the cutting direction of the cutting knife 4 is determined;

The application method of the artificial lens cutting knife comprises the following steps: firstly, a silica gel handle sleeve 11 is arranged on a handle 1, the handle 1 is held, and a clamping arm 3 extends into an eye from a limbus incision; the intraocular lens to be taken out after cutting is accommodated between the opened intraocular lens clamping arms 3; pressing the control key 2 of the clamping arm 3 on the surface of the handle 1, and fixing the clamping arm 3 by using the limiting piece 12; the cutting knife 4 is started to rotate after the power key 7 is pressed for three seconds (the cutting knife 4 can be advanced after being pressed for one time, the artificial crystal is cut, the cutting knife is stopped after being pressed for two times continuously, and the cutting knife 4 is retracted to the trapezoid bin 6 after being pressed for three times continuously); releasing the limiting piece 12, loosening the upper and lower control keys 2 of the clamping arm 3, opening the clamping arm 3, and performing the next cutting after adjusting the clamping part of the artificial lens; after cutting, the handle 1 is gripped, the artificial lens cutter is withdrawn from the incision, and then the artificial lens fragments are taken out;

According to the artificial lens cutting knife, the arc-shaped clamping arms 3 attached to the surface of the artificial lens are arranged, so that the artificial lens can enter eyes through the incision, the artificial lens can be fixed in the cutting process, the operation is convenient, the cutting knife 4 moves between the two clamping arms 3, and the damage risk of the cutter head of the cutting knife 4 to tissues such as corneal endothelium and iris can be reduced in the operation process; the artificial lens is conveniently taken out through the small incision to reduce the incidence rate of complications, improve the success rate of the operation, ensure that the artificial lens is suitable for high-hardness artificial lens taking out or replacement operation, and improve the safety, stability and operability.

The present utility model is not limited to the above-mentioned embodiments, and any equivalent embodiments which can be changed or modified by the technical content disclosed above can be applied to other fields, but any simple modification, equivalent changes and modification made to the above-mentioned embodiments according to the technical matter of the present utility model will still fall within the protection scope of the technical solution of the present utility model.

Claims (5)

1. The utility model provides an intraocular lens cutting knife, its characterized in that, including handle (1), centre gripping arm (3), cutting knife (4), power key (7) and tool bit pole (8), the outside of handle (1) is provided with silica gel handle cover (11), just two cavity (10) have been seted up to the inside symmetry of handle (1) the inside of cavity (10) is provided with connecting rod (13), the one end and the one end fixed connection of connecting rod (13) of centre gripping arm (3), just the other end of centre gripping arm (3) is provided with anti-skidding structure (5), trapezoidal storehouse (6) have been seted up to the one end of handle (1), just the one end fixed connection of the other end and power key (7) of handle (1), the one end of tool bit pole (8) and the one end fixed connection of cutting knife (4), the inside of handle (1) is provided with motor (9).

2. An intraocular lens cutting torch according to claim 1, wherein: the outer wall symmetry swing joint of handle (1) has two control keys (2), and two the one end of control key (2) evenly is provided with a plurality of locating parts (12).

3. An intraocular lens cutting torch according to claim 1, wherein: the cutting knife (4) is in a round sheet shape, and the anti-skid structure (5) is in a saw-tooth shape.

4. An intraocular lens cutting torch according to claim 1, wherein: the clamping arm (3), the cutting knife (4) and the connecting rod (13) are all made of martensitic stainless steel materials.

5. An intraocular lens cutting torch according to claim 1, wherein: the length of the clamping arm (3) is 8mm, the width of the clamping arm is 2mm, the diameter of the cutting knife (4) is 1.5mm, and the length of the handle (1) is 80mm.