CN111728768B - Anterior lens capsule scratching and tearing integrated equipment - Google Patents

Abstract

The embodiments of the present invention relate to the technical field of using phacoemulsification technology to treat cataracts, and in particular to an integrated device for scribing and tearing the anterior lens capsule, which includes a frame; in the frame; the capsulation film device is installed on the installation rod; the film tearing device is driven by the eighth power mechanism and the position of the film tearing device in the vertical direction can be adjusted to be installed on the installation rod; and a controller, the controller and the The control end of the first power mechanism and the control end of the second power mechanism are both connected with signals. The beneficial effects of the embodiment of the present invention are as follows: the cutting blade cuts the anterior capsular membrane in the front, the membrane tearing device tears the anterior capsular membrane at the back, and the rotation trajectory of the membrane cutting blade is strictly circular, so as to avoid capsulorhexis eccentricity, For the problem that the capsulorhexis is too small, the film and capsulorhexis are continuous, avoiding the hand-changing operation in manual operation; it avoids the angle limitation when the manual capsulorhexis is eccentric or the capsulorhexis is used to cut the gap again when the capsulorhexis is too small.

Description

Anterior lens capsule cutting and tearing equipment

technical field

The invention relates to the technical field of cataract treatment using phacoemulsification technology, in particular to an integrated device for scribing and tearing an anterior lens capsule.

Background technique

Phacoemulsification refers to a process in which two (or more than two) immiscible liquids are uniformly mixed to form a dispersion system under the action of ultrasonic energy, and one liquid is uniformly distributed in the other liquid to form an emulsion.

The physical mechanism for crushing insoluble solids (or liquids) is believed to be ultrasonic cavitation. The ultrasonic cavitation effect means that under the action of strong ultrasonic waves, a large number of bubbles will be generated in the liquid, and the small bubbles will gradually grow and increase with the ultrasonic vibration, and then suddenly burst and split, and the split bubbles continue to grow and burst. . When these small bubbles collapse rapidly, high temperature and high pressure are generated in the bubbles, and because the liquid around the bubbles rushes into the bubbles at a high speed, a strong local shock wave is generated in the liquid near the bubbles, and local high temperature and high pressure are also formed. Ultrasonic crushing and emulsification.

An important medical application of phacoemulsification is to treat cataracts, which is performed by continuous annular capsulorhexis. The incision tears away the circular area, and ultrasound is used to crush the lens nucleus, making it chylous, and then aspirated along with the cortex. After the operation, the posterior capsule of the lens is preserved, and a posterior chamber intraocular lens can be implanted at the same time.

Compared with traditional cataract surgery, phacoemulsification has better surgical results and has become the most advanced and reliable cataract treatment method internationally recognized.

Continuous annular capsulorhexis is a key technique in the phacoemulsification process, and it is the basis for ensuring the success of the operation, but it is also one of the more difficult techniques for beginners to master. Continuous annular capsulorhexis requires tearing off a circular smooth capsulet with a diameter of about 5.5 mm in the center of the anterior lens capsule. The specific steps are:

1. Select the starting point of the capsulorhexis at the center or paracenter of the anterior capsule of the lens. A small part of the anterior capsule that is lifted is usually named the capsular flap, and the capsulorhexis is punctured at the starting point with a capsulotomy needle or capsulorhexis forceps. , and lift up an easily clamped flap clockwise or counterclockwise (as shown in Figure 10-1);

2. Use the capsulorhexis forceps or capsulotomy needle to turn the capsular flap in the direction of the capsulorhexis (clockwise or counterclockwise), so that the capsular flap covers the untorn capsular membrane (Figure 10-2), and use the capsulorhexis forceps to clamp Hold the root of the capsular flap and tear the capsule in a predetermined direction (clockwise or counterclockwise as described above) until it is connected to the starting point, completing a continuous circular capsulorhexis (Figure 10-3);

For beginners, the problem of capsulorhexis eccentricity or too small capsulorhexis often occurs (Fig. 10-4). At this time, capsular scissors (Fig. 10-5) should be used to enter the main surgical incision along the tangent line at the edge of the capsulorhexis. Cut a small gap in the capsule in the direction (A and B in Figure 10-5) to start the flap, and fold the capsular flap again to continue the capsulorhexis (Figure 10-5). For beginners, an eccentric and too small capsulorhexis can be located anywhere in the center of the capsular membrane, but due to the limited width of the main incision and the shearing direction of the capsular scissors can only be parallel to the capsular scissors themselves, in most cases The capsule cannot be cut and flapped smoothly at the appropriate position (position C in Figure 10-5) and direction (in position C, the notch direction is indicated by arrow D) (position B in Figure 10-5). ), therefore, it is necessary to improve the existing capsular scissors so that they can be cut in all directions to solve the above-mentioned technical problems.

At the same time, the above-mentioned continuous annular capsulorhexis relies heavily on the experience, technique, and physical and mental state of the doctor who performs the operation, and there are many unstable factors;

Therefore, there is a need for an integrated device for scoring and tearing the anterior lens capsule to overcome the above-mentioned problems.

SUMMARY OF THE INVENTION

In order to solve the above problems, embodiments of the present invention provide an integrated device for scribing and tearing the anterior lens capsule, which includes:

frame;

A mounting rod, the height of the mounting rod and the position in the horizontal plane can be adjusted to be installed on the frame, so as to adjust the position of the mounting rod relative to the anterior capsule of the lens in the vertical direction and the horizontal plane respectively, so The mounting rod is rotatably mounted on the frame in a horizontal plane under the driving of the first power mechanism;

A capsulation film device, the capsulation film device is installed on the installation rod, the first power mechanism is installed on the installation rod, the capsule film device includes a knife holder, and the knife holder is installed on the installation a rod, the end of the knife holder facing the rotation axis of the capsulotomy device is formed with a piercing end for piercing the anterior capsule of the lens, the knife holder facing the side of the rotation direction of the capsulotomy device A membrane-scribing blade is formed for slicing the anterior capsule of the lens from the side after the piercing end is inserted;

A film tearing device, the position of the film tearing device in the vertical direction can be adjusted to be installed on the installation rod under the driving of the fifth power mechanism, the film tearing device is adjacent to the capsular film device and is located in the Behind the capsular film device, the tear film device includes a pair of tear film sheets that can be folded or unfolded with each other under the drive of a second power mechanism, the second power mechanism being mounted on the mounting rod; and

The controller is connected with the control terminal of the first power mechanism and the control terminal of the second power mechanism in signal connection.

Further, the frame includes a base, a column and a swing arm, wherein:

The upright is vertically arranged, the lower end of the upright is fixed on the base, and the swing arm is rotatably mounted on the upper end of the upright in a horizontal plane under the driving of the first power mechanism;

The mounting rod is mounted on the end of the swing arm away from the upright column.

Further, the swing arm includes a first arm, a second arm and a third power mechanism, wherein:

the third power mechanism is installed between the first arm and the second arm to drive the second arm to slide in a horizontal direction relative to the first arm;

the first arm is fixed on the upper end of the upright column, and the mounting rod is mounted on the end of the second arm away from the first arm;

The third power mechanism is signally connected to the controller.

Further, it also includes a fourth power mechanism signally connected to the controller, and the mounting rod is slidably mounted on the frame in a vertical direction under the driving of the fourth power mechanism.

Further, one of the two opposite ends of a pair of said tear-off sheets is a fixed end and the other is an open end, and the two fixed ends of a pair of said tear-off sheets are fixed, and a pair of said tear-off sheets is fixed. The two open ends of the sheet are away from each other, and the second power mechanism includes a second power unit, a driving gear, a driven gear, a first action rod and a second action rod, wherein:

The power output end of the second power unit is drivingly connected with the driving gear, and the driving gear and the driven gear are rotatably installed on two tear-off sheets through the driving wheel shaft and the driven wheel shaft respectively, and the two The tear-off sheets are respectively a first tear-off sheet and a second tear-off sheet, the driving gear meshes with the driven gear, the first end of the first action rod, the first end of the second action rod The ends are respectively fixed to the driving wheel shaft and the driven wheel shaft, the second end of the first action rod and the second end of the second action rod are respectively directed away from the driving wheel shaft and the driven wheel shaft. The direction extends to the open end of the first tear-off sheet and the open end of the second tear-off sheet, and the second end of the first action rod and the second end of the second action rod are respectively provided with direction The first pressing portion and the second pressing portion extended by the tear-off sheet, the position of the first tear-off sheet facing the first pressing portion is provided with the first pressing portion along the first tear-off sheet The first sliding groove slides in the longitudinal direction of the second film, and the position of the second tear-off sheet toward the second pressing portion is provided with a first sliding groove for the second pressing portion to slide along the length direction of the second tear-off sheet. Two sliding grooves;

The control end of the second power unit is signally connected to the controller.

Further, it also includes a film clamping force sensing unit installed on the tear film sheet for detecting the force of the two tear film sheets to clamp the capsular flap, and the signal output of the film clamping force detection unit The terminal is signal-connected to the controller.

Further, the number of the film tearing devices is two, and the two film tearing devices are arranged on the installation rod back and forth in the rotation direction of the installation rod, and each of the film tearing devices is in a fifth position. Driven by the power mechanism, it moves in the direction of approaching and away from the root of the capsular flap, so as to alternately clamp the root of the capsular flap scribed by the scribing blade.

Further, the fifth power mechanism is a hydraulically driven telescopic branch chain.

Further, it also includes a sixth power mechanism that is signally connected to the controller, and the tool holder is mounted on the frame reciprocatingly along its own length direction under the driving of the sixth power mechanism.

Further, the sixth power mechanism is a hydraulically driven telescopic branch chain.

The beneficial effects of the embodiments of the present invention are:

Adjust the height of the installation rod and the position in the horizontal direction so that the installation rod is at a suitable position from the lens of the cataract patient. In this suitable position, the piercing end is lower than the anterior capsule in height, and there is a distance from the anterior capsule in the horizontal direction. Appropriate distance, and then further adjust the position of the installation rod in the horizontal direction, so that the piercing end gradually pierces the anterior capsule, and lock the position of the installation rod in the horizontal plane after piercing a certain distance;

Then the first power mechanism works to drive the installation rod to rotate in the horizontal plane, and the capsular film device and the tear film device rotate synchronously with the installation rod. The membrane is cut open, and a pair of tear-off sheets moves down to the root of the capsular flap under the drive of the fifth power unit and clamps the root under the drive of the second power mechanism. Driven by the eighth power unit, it is gradually pulled upwards, thereby tearing the anterior capsule;

The scribing blade cuts the anterior capsular membrane at the front, the membrane tearing device tears off the capsular membrane at the back, and the rotation trajectory of the scribing blade is strictly circular, so as to avoid the problems of eccentric capsulorhexis and too small capsulorhexis. Capsulorhexis is continuous, avoiding the hand-over operation in manual operation;

At the same time, the angle limitation of manual capsulorhexis eccentricity or when capsulorhexis is too small to use capsular scissors to cut the gap again;

The capsulorhexis has a good effect, laying a good foundation for the subsequent phacoemulsification and intraocular lens implantation, and the medical effect is guaranteed;

The high degree of automation greatly reduces the experience requirements for the doctor performing the operation, reduces the physical and energy consumption of the doctor, and greatly relieves the doctor's over-fatigue.

Description of drawings

1 is a schematic structural diagram of an embodiment of an integrated device for scribing and tearing the anterior lens capsule;

Fig. 2 is a partial enlarged view of region Z in Fig. 1;

Fig. 3 is a front view of the capsulotomy device (wherein the view direction is the direction from the piercing end, that is, the left direction in Fig. 2 );

4 is a schematic structural diagram of an embodiment of the film tearing device;

Fig. 5 is a partial enlarged view of region Y in Fig. 4;

Fig. 6 is a partial enlarged view of region X in Fig. 4;

7 is a schematic structural diagram of an embodiment of the third power mechanism driving the second arm to slide along the first arm;

8 is a schematic structural diagram of an embodiment of the height adjustment of the fourth power mechanism driving the installation rod in the vertical direction;

9 is a control block diagram of an embodiment of an integrated device for scribing and tearing the anterior lens capsule;

Fig. 10 is the bottom view of Fig. 3;

Figure 10-1 shows the working principle of puncturing the anterior capsule of the lens and forming a capsular flap;

Figure 10-2 is a schematic diagram of a continuous annular capsulorhexis, which shows the state that the capsular flap is partially torn off;

Figure 10-3 is a schematic diagram of the torn capsular membrane under ideal conditions using continuous annular capsulorhexis;

Figure 10-4 Schematic diagram of too small capsulorhexis and eccentric capsulorhexis;

Figure 10-5 is a schematic diagram of the incision of the capsulorhexis that is too small and the capsulorhexis is eccentric and the capsulorhexis needle or capsulorhexis forceps are used for the second time.

In the picture:

11, base; 12, column; 121, upper column; 122, lower column; 13, swing arm; 131, first arm; 132, second arm;

2. Mounting rod;

3. Capsule cutting device; 31. Blade holder; 32. Piercing end; 33. Cutting blade;

4. Film tearing device; 41, first tearing film; 411, first sliding groove; 42, second tearing film; 43, fixed end; 44, open end;

51, first power mechanism; 511, servo motor; 512, driving gear; 513, driven gear; 52, second power mechanism; 521, second power unit; 522, driving gear; 523, driven gear; 524, The first action lever; 5241, the first pressing part; 525, the second action lever; 526, the driving axle; 527, the driven axle; 53, the third power mechanism; 531, the servo motor; 532, the coupling; 533, Lead screw; 534, nut; 54, fourth power mechanism; 541, servo motor; 542, lead screw; 543, nut; 55, fifth power mechanism; 56, sixth power mechanism; 57, film clamping force sensing unit;

6. Anterior capsule of the lens; 61. Capsular flap.

Detailed ways

Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principle of the present invention, and are not intended to limit the protection scope of the present invention.

Referring to FIG. 1 to FIG. 10 , an embodiment of the present invention discloses an integrated device for scribing and tearing an anterior lens capsule, which includes:

frame;

Mounting rod 2, the height of the mounting rod and the position in the horizontal plane can be adjusted to be installed on the frame, so as to adjust the position of the mounting rod relative to the anterior capsule 6 of the lens in the vertical direction and in the horizontal plane, respectively , the installation rod is rotatably installed on the frame in the horizontal plane under the driving of the first power mechanism 51;

The capsulation filming device 3 is installed on the installation rod, the first power mechanism is installed on the installation rod, and the capsule filming device includes a knife holder 31, and the knife holder is installed on the installation rod. The installation rod, the end of the knife holder facing the rotation axis of the capsular membrane device is formed with a piercing end 32 for piercing the anterior capsule of the lens (see Fig. 10-1 for the state after piercing), so The side of the knife holder facing the rotation direction of the capsular film device is formed with a film cutting blade 33 that cuts the anterior capsule of the lens from the side after the piercing end is pierced (see Fig. 10-2 for the state after cutting. );

The film tearing device 4, driven by the fifth power mechanism 55, is installed on the mounting rod in a position that can be adjusted in the vertical direction, the film tearing device is adjacent to the capsular film device and is located at the The rear of the capsulorhexis device (the included angle between the two is between 5° and 30°, if it is too small, the anterior capsular membrane will not be completely cut and the tearing device will begin to function, resulting in eccentric capsulorhexis, The capsulorhexis is too small; the anterior capsular membrane that is too large to be cut cannot be pulled up in time to cause accumulation, which is not conducive to continuous cutting), the tearing membrane device includes a pair of which can be folded or an unfolded tear-off sheet, the second power mechanism is mounted on the mounting rod; and

The controller is connected with the control terminal of the first power mechanism and the control terminal of the second power mechanism in signal connection.

Adjust the height of the installation rod and the position in the horizontal direction so that the installation rod is at a suitable position from the lens of the cataract patient. In this suitable position, the piercing end is lower than the anterior capsule in height, and there is a distance from the anterior capsule in the horizontal direction. Appropriate distance, and then further adjust the position of the installation rod in the horizontal direction, so that the piercing end gradually penetrates the anterior capsule, and locks the position of the installation rod in the horizontal plane after piercing a certain distance. Then the first power mechanism works to drive the installation rod to rotate in the horizontal plane, and the capsular film device and the tear film device rotate synchronously with the installation rod. The membrane is cut open, and driven by the fifth power unit, a pair of tearing membranes moves down to the root of the capsular flap 61 (the part where the anterior capsular membrane is punctured and pulled up and then folded upwards) and at the bottom of the second power mechanism. The root is clamped under driving, and the tearing film is gradually pulled upwards under the driving of the fifth power unit with the rotation of the installation rod, thereby tearing the anterior capsule.

The scribing blade cuts the anterior capsular membrane in the front, and the tearing device tears off the capsular membrane at the back, and the rotation trajectory of the scribing blade is strictly circular, so as to avoid eccentric capsulorhexis and too small capsulorhexis (see Figure 10-4). Capsulorhexis effect), the membrane and the capsulorhexis are continuous (refer to the capsulorhexis effect in Figure 10-3) to avoid the hand-changing operation that exists during manual operation.

At the same time, the angle limitation of manual capsulorhexis eccentricity or when the capsulorhexis is too small to cut the gap again with capsular scissors is eliminated; the capsulorhexis has a good effect, laying a good foundation for the subsequent phacoemulsification and intraocular lens implantation, and the medical effect is guaranteed.

For beginners or mistakes in operation, when the capsulorhexis is eccentric and the capsular scissors need to be used again for incision, the incision angle of the capsular scissors is required (the incision angle of the capsular scissors is tangent to the incision, see Figure 10-5). direction of arrows A and B), if the cutting angle is not suitable (cutting in the direction of arrow C in Figure 10-5, the notch is in the direction shown by arrow D, which obviously does not coincide with the directions of A and B), it cannot be cut. When the invention is adopted, the process of capsulotomy and capsulorhexis is continuous and will not be interrupted, thus avoiding the occurrence of this phenomenon.

It greatly reduces the experience requirements for the doctor performing the operation, reduces the physical and energy consumption of the doctor, and greatly relieves the doctor's over-fatigue.

It should be noted that the height of the installation rod and the position adjustment in the horizontal plane can be adjusted manually or by power drive. Whether it is manual or power drive, the transmission methods are similar. For example, for height adjustment, the installation rod is installed on the frame through a vertically arranged sliding table. After sliding to the above-mentioned suitable position, the height of the installation rod is locked with locking parts such as locking bolts. The difference between manual and power drive The only difference is the power source of the sliding; one way of adjusting the horizontal position is that the mounting rod is rotatably mounted on the frame in the horizontal plane through the bearing.

It is known to those skilled in the art that the sharpness of the above-mentioned scribing blade should be sufficient to pierce the anterior capsule. In order to ensure its sharpness and wear resistance, materials such as ceramics can be selected. It is also known to those skilled in the art that the width of the piercing end should not be too large, which may affect the piercing effect and increase the difficulty of the piercing operation.

It should be further noted that, a specific form of the first power mechanism is: the servo motor and the reducer are connected in a driving manner. Those skilled in the art know that other driving and transmission modes can also be used, which will not be listed one by one.

One way to adjust the height of the above-mentioned installation rod and its position in the horizontal plane is: the frame includes a base 11, a column 12 and a swing arm 13, wherein:

The vertical column is arranged vertically, the lower end of the vertical column is fixed on the base, the swing arm is rotatably installed on the upper end of the vertical column in the horizontal plane under the driving of the first power mechanism, and the control end of the first power mechanism is signal-connected with the controller;

The mounting rod is mounted on the end of the swing arm away from the column.

The swing arm includes a first arm 131, a second arm 132 and a third power mechanism 53, wherein:

The third power mechanism is installed between the first arm and the second arm to drive the second arm to slide relative to the first arm in the horizontal direction;

The first arm is fixed on the upper end of the upright column, and the installation rod is installed on the end of the second arm away from the first arm;

The third power mechanism is signally connected to the controller. The third power mechanism can be various linear transmission pairs, such as linear slide table, ball screw, air cylinder, hydraulic cylinder, etc.

It should be noted that another embodiment of the integrated device for scribing and tearing the anterior lens capsule may further include a fourth power mechanism 54 that is signally connected to the controller, and the mounting rod is slidably slidable in the vertical direction under the driving of the fourth power mechanism. Rack mounted. Therefore, the height of the installation rod is automatically adjusted. Of course, the height data of the installation rod can also be stored in the storage unit of the controller, so that the height adjustment of the installation rod has a memory function.

In addition, referring to FIGS. 5 and 6 , one of the two opposite ends of the pair of tear-off sheets is the fixed end 43 and the other is the open end 44 , the two fixed ends of the pair of tear-off sheets are fixed, and the pair The two open ends of the tear film are far away from each other, and the second power mechanism includes a second power unit 521 (a servo motor can be selected for the second power unit), a driving gear 522, a driven gear 523, a first action rod 524 and a second action Rod 525, where:

The power output end of the second power unit is connected with the driving gear, the driving gear and the driven gear are rotatably installed on two tear-off sheets respectively through the driving wheel shaft and the driven wheel shaft, and the two tear-off sheets are the first tear-off film respectively. Sheet 41 and the second tear-off sheet 42, the driving gear meshes with the driven gear, the first end of the first action rod and the first end of the second action rod are respectively fixed to the driving wheel shaft 526 (the driving wheel shaft and the driving gear are coaxially fixed. connection) and the driven wheel shaft 527 (the driven gear is coaxially and fixedly connected to the driven wheel shaft), the second end of the first action rod and the second end of the second action rod extend away from the driving wheel shaft and the driven wheel shaft respectively. To the open end of the first tear film sheet and the open end of the second tear film sheet, the second end of the first action rod and the second end of the second action rod are respectively provided with a first pressing portion 5241 extending toward the tear film sheet and the second pressing portion, the position of the first tear-off sheet facing the first pressing portion is provided with a first sliding groove 411 for the first pressing portion to slide along the length direction of the first tear-off sheet, and the second tear-off sheet is facing the first pressing portion. The position of the two pressing parts is provided with a second sliding groove for the second pressing part to slide along the length direction of the second tear-off sheet;

The control end of the second power unit is signally connected to the controller. When the first tear film and the second tear film clamp the capsular flap, the first pressing part and the second pressing part slide along the first sliding groove and the second sliding groove respectively, so that the first action rod and the second The action rod always maintains sufficient pressure, and at the same time, because the first tear film and the second tear film are usually made of thin steel plates (to work in a narrow space for the eyes), the first action rod and the second action rod improve the tear film. The rigidity of the device as a whole, in particular, avoids lateral inversion during the clamping process of the first tear film and the second tear film, and ensures the clamping force of the capsular flap.

Another embodiment of the integrated device for scoring and tearing the anterior lens capsule may further include a membrane clamping force sensing unit (such as a strain gauge force sensor) installed on the tearing membrane, for detecting that the two tearing membranes clamp the capsular flap The signal output end of the film clamping force detection unit is connected with the signal of the controller. The clamping force of the capsular flap is detected and automatically adjusted, so as to prevent the capsular flap from being clamped due to excessive clamping force, and the capsular flap is not clamped due to too small clamping force. This ensures that the capsular flap can be clamped stably and continuously.

There are two film tearing devices, the two tearing film devices are arranged on the installation rod forward and backward in the rotation direction of the installation rod, and each film tearing device is driven by a fifth power mechanism along the direction of the capsular flap close to and away from the capsular flap. Movement in the direction of the root to alternately clamp the root of the capsular flap scribed by the scribing blade. The two membrane tearing devices can alternately clamp the root of the capsular flap, which further ensures that the capsular flap can be clamped stably and continuously; Capsulorhexis eccentricity occurs, capsulorhexis is too small.

In addition, the fifth power mechanism is a hydraulically driven telescopic branch chain.

Another embodiment of the integrated device for scribing and tearing of anterior lens capsule may further include a sixth power mechanism 56 signally connected to the controller, and the tool holder is mounted on the frame reciprocatingly along its own length direction under the driving of the sixth power mechanism.

The sixth power mechanism is a hydraulically driven telescopic branch chain.

It should be noted that a selection of the above-mentioned power mechanisms is as follows:

First power mechanism: Referring to FIG. 2, the first power mechanism of the mounting rod includes a servo motor 511, the outer casing of the servo motor is fixed on the free end of the second arm, and the servo motor drives the driving gear 512 rotatably mounted on the second arm to rotate, The driving gear meshes with the driven gear 513, and the driven gear, the rotating shaft of the installation rod, and the installation rod are coaxially fixed, so that the installation rod rotates.

Second Power Mechanism: As described above.

The third power mechanism: referring to FIG. 7 , the column includes an upper column 121 and a lower column 122 that can slide with each other, the first arm is rotatably mounted on the upper end of the upper column through a bearing, and a servo motor 531 is fixed on the first arm through a mounting seat , the servo motor is connected with a lead screw 533 through a coupling 532, the end of the lead screw is matched with a nut 534, the nut is fixedly connected with the second arm, the servo motor works to drive the lead screw to rotate, so that the nut drives the second arm along the axis of the lead screw Towards reciprocating movement.

Fourth power mechanism: Referring to FIG. 8, the reciprocating motion is realized between the upper column and the lower column through the ball screw driven by the servo motor 541, that is, the servo motor drives the lead screw 542 to rotate, cooperates with the lead screw and is fixed on the upper column The nut 543 moves axially, thereby driving the upper column to reciprocate in the vertical direction.

The fifth power mechanism 55 and the sixth power mechanism 56: both adopt hydraulically driven telescopic branch chains, see FIG. 2, because the fifth power mechanism drives the movement of the film tearing device as a whole in the vertical direction, and the sixth power mechanism drives It is the bursa membrane device that penetrates into the anterior capsule and evacuates from the anterior capsule. Therefore, the precision of the power mechanism is high, and the hydraulically driven telescopic branch meets the high precision requirements. Since the hydraulically driven telescopic branch chain is a mature technology for industrial application, it will not be detailed on its structure.

In addition, in the embodiment of the present invention, the motion parameters of each power mechanism are controlled by the controller, as shown in FIG. 9 , which is convenient for automation.

It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. Terms indicating a direction or positional relationship are based on the direction or positional relationship shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a particular orientation, be constructed and operate in a particular orientation, Therefore, it should not be construed as a limitation of the present invention. Furthermore, the terms "first", "second", and "third" are used for descriptive purposes only and should not be construed to indicate or imply relative importance.

In addition, it should also be noted that, in the description of the present invention, unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection or a It is a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

The term "comprising" or any other similar term is intended to encompass a non-exclusive inclusion such that a process, article, or device/means comprising a list of elements includes not only those elements, but also other elements not expressly listed, or also includes Elements inherent to these processes, items or equipment/devices.

So far, the technical solutions of the present invention have been described with reference to the preferred embodiments shown in the accompanying drawings, however, those skilled in the art can easily understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims (10)

1. A lens anterior capsule is drawn and is torn integrative equipment which characterized in that includes:

a frame;

the height and the position of the horizontal plane of the mounting rod are both adjustably mounted on the rack so as to respectively adjust the positions of the mounting rod in the vertical direction and the horizontal plane relative to the anterior capsule of the crystalline lens, and the mounting rod is rotationally mounted on the rack in the horizontal plane under the driving of a first power mechanism;

the capsulotomy device is mounted on the mounting rod, the first power mechanism is mounted on the mounting rod, the capsulotomy device comprises a knife rest which is mounted on the mounting rod, a puncturing end used for puncturing the anterior capsule of the crystalline lens is formed at the end part, facing the rotation axis of the capsulotomy device, of the knife rest, and a capsulotomy blade used for puncturing the anterior capsule of the crystalline lens from the side surface after the puncturing end is punctured is formed at the side surface, facing the rotation direction of the capsulotomy device, of the knife rest;

the film tearing device is driven by a fifth power mechanism to be adjustably mounted on the mounting rod in the vertical direction, is adjacent to the capsule cutting device and is positioned behind the capsule cutting device, the film tearing device comprises a pair of film tearing sheets which can be folded or unfolded mutually under the drive of a second power mechanism, and the second power mechanism is mounted on the mounting rod; and

and the controller is in signal connection with both the control end of the first power mechanism and the control end of the second power mechanism.

2. The anterior lens capsule tear body apparatus of claim 1, wherein the frame comprises a base, a post, and a swing arm, wherein:

the upright post is vertically arranged, the lower end of the upright post is fixed on the base, and the swing arm is driven by the first power mechanism to be rotatably arranged at the upper end of the upright post in a horizontal plane;

the mounting rod is mounted at the end part of the swing arm far away from the upright post.

3. The anterior lens capsule tear body apparatus of claim 2, wherein the swing arm comprises a first arm, a second arm, and a third powered mechanism, wherein:

the third power mechanism is arranged between the first arm and the second arm so as to drive the second arm to slide in the horizontal direction relative to the first arm;

the first arm is fixed at the upper end of the upright post, and the mounting rod is mounted at the end part of the second arm, which is far away from the first arm;

and the third power mechanism is in signal connection with the controller.

4. The anterior lens capsule tearing integrated device according to claim 3, further comprising a fourth power mechanism in signal connection with the controller, wherein the mounting rod is slidably mounted to the frame in a vertical direction under the driving of the fourth power mechanism.

5. The anterior lens capsule tearing integrated device according to claim 4, wherein one of the opposite ends of the pair of tearing films is a fixed end, the other one is an open end, the two fixed ends of the pair of tearing films are fixed, the two open ends of the pair of tearing films are far away from each other, the second power mechanism comprises a second power unit, a driving gear, a driven gear, a first action rod and a second action rod, wherein:

the power output end of the second power unit is in transmission connection with the driving gear, the driving gear and the driven gear are rotatably mounted on two tear films through a driving wheel shaft and a driven wheel shaft respectively, the two tear films are a first tear film and a second tear film respectively, the driving gear is meshed with the driven gear, the first end of the first action rod and the first end of the second action rod are fixed on the driving wheel shaft and the driven wheel shaft respectively, the second end of the first action rod and the second end of the second action rod extend to the opening end of the first tear film and the opening end of the second tear film in the direction away from the driving wheel shaft and the driven wheel shaft respectively, and the second end of the first action rod and the second end of the second action rod are provided with a first pressing part and a second pressing part which extend to the tear films respectively, a first sliding groove for enabling the first pressing part to slide along the length direction of the first tearing film is formed in the position, facing the first pressing part, of the first tearing film, and a second sliding groove for enabling the second pressing part to slide along the length direction of the second tearing film is formed in the position, facing the second pressing part, of the second tearing film;

and the control end of the second power unit is in signal connection with the controller.

6. The anterior lens capsule tearing integrated device according to claim 5, further comprising a membrane clamping force sensing unit mounted on the tearing membrane for detecting the force of the two tearing membrane clamping the capsular flap, wherein a signal output end of the membrane clamping force sensing unit is in signal connection with the controller.

7. The anterior lens capsule tearing integrated device according to any one of claims 1 to 6, wherein the number of the tearing devices is two, the two tearing devices are arranged on the mounting rod in a front-back manner in the rotation direction of the mounting rod, and each tearing device is driven by a fifth power mechanism to move in a direction close to and away from the root of the capsular flap so as to alternately clamp the root of the capsular flap scratched by the scratching blade.

8. The anterior lens capsule tear integrity device of claim 7 wherein said fifth powered mechanism is a hydraulically driven telescoping branch.

9. The anterior lens capsule tearing integrated device according to claim 8, further comprising a sixth power mechanism in signal connection with the controller, wherein the knife holder is mounted on the frame in a reciprocating manner along the length direction of the knife holder under the driving of the sixth power mechanism.

10. The anterior lens capsule tear integrity device of claim 9 wherein said sixth powered mechanism is a hydraulically driven telescoping branch.

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