CN111728768A - Anterior lens capsule scratching and tearing integrated equipment - Google Patents
Anterior lens capsule scratching and tearing integrated equipment Download PDFInfo
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- CN111728768A CN111728768A CN202010712048.0A CN202010712048A CN111728768A CN 111728768 A CN111728768 A CN 111728768A CN 202010712048 A CN202010712048 A CN 202010712048A CN 111728768 A CN111728768 A CN 111728768A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F9/00—Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
- A61F9/007—Methods or devices for eye surgery
- A61F9/00736—Instruments for removal of intra-ocular material or intra-ocular injection, e.g. cataract instruments
- A61F9/00745—Instruments for removal of intra-ocular material or intra-ocular injection, e.g. cataract instruments using mechanical vibrations, e.g. ultrasonic
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Abstract
The embodiment of the invention relates to the technical field of treatment of cataract by using an ultrasonic emulsification technology, in particular to a lens anterior capsule membrane scratching and tearing integrated device, which comprises a frame; the height of the mounting rod and the position of the mounting rod on the horizontal plane are both adjustably mounted on the rack; the cyst membrane scratching device is arranged on the mounting rod; the film tearing device is driven by an eighth power mechanism to be arranged on the mounting rod in a position adjustable mode in the vertical direction; 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. The embodiment of the invention has the beneficial effects that: the film cutting blade cuts the front capsule film in front, the film tearing device tears the front capsule film at the back, and the rotation track of the film cutting blade is strictly circular, so that the problems of eccentric capsule tearing and too small capsule tearing are avoided, the film cutting and the capsule tearing are continuous, and the hand changing operation in manual operation is avoided; the angle limitation when the capsule is manually torn off eccentrically or the capsule is torn off again by using the capsule film scissors when the capsule is too small is avoided.
Description
Technical Field
The invention relates to the technical field of cataract treatment by using an ultrasonic emulsification technology, in particular to a lens anterior capsule scratching and tearing integrated device.
Background
Ultrasonic emulsification refers to a process in which two (or more) immiscible liquids are uniformly mixed to form a dispersion system under the action of ultrasonic energy, wherein one liquid is uniformly distributed in the other liquid to form an emulsion.
The physical mechanism of breaking up an insoluble solid (or liquid) is believed to be ultrasonic cavitation. The ultrasonic cavitation effect means that under the action of strong ultrasonic waves, a large amount of bubbles are generated in liquid, small bubbles grow and grow gradually along with ultrasonic vibration and then are suddenly broken and split, and the split bubbles continuously grow and break. When these small bubbles collapse rapidly, high temperature and high pressure are generated in the bubbles, and strong local shock waves are generated in the liquid near the bubbles due to the high-speed flushing of the liquid around the bubbles into the bubbles, and local high temperature and high pressure are also formed, thereby generating ultrasonic pulverization and emulsification.
The important medical application of ultrasonic emulsification is to treat cataract by adopting a continuous annular capsulorhexis, and the specific process is as follows: an incision is cut on the anterior capsule of the crystalline lens by using a capsular scissors, then a circular area is torn off along the incision by using a capsulotomy needle or capsulorhexis forceps, the crystalline nucleus is crushed by applying ultrasonic waves to be in a chyle shape, and then the crushed crystalline nucleus and the cortex are sucked out together. After the operation, the posterior capsule of the lens is kept, and the posterior chamber type artificial lens can be implanted at the same time.
Compared with the traditional cataract operation mode, the ultrasonic emulsification operation has better operation effect, and becomes the most advanced and reliable cataract treatment method internationally recognized at present.
The continuous annular capsulorhexis is a key technology in the ultrasonic emulsification process, is the basis for ensuring the success of the operation, but is also one of the more difficult techniques for beginners to master. The continuous annular capsulorhexis requires tearing off a circular smooth capsule flap with the diameter of about 5.5mm in the center of the anterior lens capsule, and comprises the following specific steps:
1. selecting a starting point of capsulorhexis at the center or the lateral center of the anterior capsule of the lens, wherein a small part of the lifted anterior capsule is generally named as a capsular flap, puncturing the capsule at the starting point by a capsulorhexis needle or capsulorhexis forceps, and lifting an easily clamped flap clockwise or anticlockwise (as shown in figure 10-1);
2. turning over the capsular flap (clockwise or anticlockwise) in the direction of capsulorhexis by using capsulorhexis forceps or a capsulorhexis needle to cover the capsular flap on the un-torn capsular (figure 10-2), clamping the root of the capsular flap by using the capsulorhexis forceps, and tearing the capsular in a preset direction (clockwise or anticlockwise) until the capsular flap is connected with the starting position to complete continuous annular capsulorhexis (figure 10-3);
for beginners, the capsulorhexis is eccentric or the capsulorhexis is too small (fig. 10-4), and at the moment, the capsulorhexis scissors (fig. 10-5) are used for entering the main incision of the operation to cut a small notch (A, B in fig. 5) on the edge of the capsulorhexis along the tangential direction to flap the capsulorhexis, and the capsulorhexis is continuously carried out by turning over the capsulorhexis again (fig. 5). For beginners, the eccentric and too small capsulorhexis can be at any position in the center of the capsular sac, but because the width of the main incision is limited and the cutting direction of the capsular scissors can only be parallel to the capsular scissors, the capsular scissors cannot smoothly cut the capsular sac and lift the valve (as shown in the position B of fig. 5) at a proper position (as shown in the position C in fig. 5) and direction (as shown by the arrow D in the cutting direction in the position C), and therefore, the existing capsular scissors need to be improved to cut the capsular sac in all directions, so as to solve the technical problems.
Meanwhile, the continuous annular capsulorhexis depends heavily on experience, manipulation and physical and psychological states of doctors performing the operation, and has a plurality of unstable factors; meanwhile, the physical and mental consumptions of the doctor are large.
Therefore, there is a need for a pre-lens capsule scoring and tearing integrated device to overcome the above problems.
Disclosure of Invention
In order to solve the above problems, an embodiment of the present invention provides a pre-lens capsule scratching and tearing integrated device, which 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.
Further, the frame includes base, stand and 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.
Further, the swing arm includes first arm, second arm and third power unit, 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.
The mounting rod is driven by the fourth power mechanism to be slidably mounted on the rack in the vertical direction.
Further, one of the two opposite ends of the tearing film is a fixed end, the other is an open end, the two fixed ends of the tearing film are fixed, the two open ends of the tearing film 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.
The capsule flap tearing device is characterized by further comprising a membrane clamping force sensing unit arranged on the tearing membrane and used for detecting the force of the tearing membrane clamping the capsule flap, and the signal output end of the membrane clamping force detecting unit is in signal connection with the controller.
Furthermore, the number of the film tearing devices is two, the two film tearing devices are arranged in the front and back direction of the rotating direction of the mounting rod, and each film tearing device is driven by a fifth power mechanism to move in the direction close to and far away from the root of the capsular flap so as to alternately clamp the root of the capsular flap scratched by the scratching blade.
Furthermore, the fifth power mechanism is a hydraulic drive telescopic branched chain.
The tool rest is driven by a sixth power mechanism to be mounted on the frame in a reciprocating manner along the length direction of the tool rest.
Furthermore, the sixth power mechanism is a hydraulic drive telescopic branched chain.
The embodiment of the invention has the beneficial effects that:
adjusting the height of the mounting rod and the position of the mounting rod in the horizontal direction to enable the mounting rod to reach a proper position from the crystalline lens of the cataract patient, wherein the height of the mounting rod is lower than that of the anterior capsular sac, and the mounting rod is horizontally spaced from the anterior capsular sac by a proper distance;
then the first power mechanism works to drive the mounting rod to rotate in the horizontal plane, the capsule membrane scratching device and the membrane tearing device synchronously rotate along with the mounting rod, the capsule membrane scratching device is arranged in front of the mounting rod, the membrane scratching blade on the side part scratches the front capsule membrane, the pair of membrane tearing pieces move downwards to the root of the capsule membrane flap under the drive of the fifth power unit and clamp the root under the drive of the second power mechanism, and the membrane tearing pieces are gradually lifted upwards under the drive of the eighth power unit along with the rotation of the mounting rod, so that the front capsule membrane is torn;
the film cutting blade cuts the front capsule film in front, the film tearing device tears the capsule film in back, and the rotation track of the film cutting blade is strictly circular, so that the problems of eccentric capsule tearing and too small capsule tearing are avoided, the film cutting and the capsule tearing are continuous, and the hand changing operation in manual operation is avoided;
meanwhile, the angle limitation when the capsule is manually torn off eccentrically or the capsule is torn off again by using a capsule film shear when the capsule is too small is avoided;
the capsulorhexis effect is good, a good foundation is laid for subsequent ultrasonic emulsification and artificial lens implantation, and the medical effect is ensured;
the degree of automation is high, the experience requirements of doctors performing the operation are greatly reduced, the physical and energy losses of the doctors are reduced, and the overfatigue of the doctors is greatly relieved.
Drawings
FIG. 1 is a schematic structural view of an embodiment of an anterior lens capsule tear-off integrated apparatus;
FIG. 2 is an enlarged view of a portion of region Z of FIG. 1;
fig. 3 is a front view of the cyst membrane device (where the view direction is from the piercing end, i.e., the left direction in fig. 2);
FIG. 4 is a schematic structural diagram of an embodiment of a film tearing apparatus;
FIG. 5 is a partial enlarged view of region Y in FIG. 4;
FIG. 6 is an enlarged view of a portion of region X of FIG. 4;
FIG. 7 is a schematic structural view of an embodiment in which a third power mechanism drives a second arm to slide along a first arm;
FIG. 8 is a schematic structural view of an embodiment of a fourth power mechanism for driving the mounting rod to adjust the height in the vertical direction;
FIG. 9 is a control block diagram of one embodiment of an anterior capsulorhexis tearing integrated device;
FIG. 10 is a bottom view of FIG. 3;
FIG. 10-1 is a functional diagram of the anterior capsule of the lens puncturing and capsular flap formation;
FIG. 10-2 is a schematic view of a continuous tear circular capsule showing the capsular flap partially torn away;
FIG. 10-3 is a schematic view of a capsular bag torn in an ideal state using continuous circular capsulorhexis;
FIG. 10-4 is a schematic illustration of a capsulorhexis being too small, capsulorhexis eccentric;
fig. 10-5 are schematic diagrams of secondary use of the capsulotomy needle or capsulotomy forceps for remedying the situation that the capsulotomy is too small and the capsulotomy is eccentric.
In the figure:
11. a base; 12. a column; 121. an upper upright post; 122. a lower upright post; 13. swinging arms; 131. a first arm; 132. a second arm;
2. mounting a rod;
3. a cyst membrane cutting device; 31. a tool holder; 32. a piercing end; 33. a film scribing blade;
4. a film tearing device; 41. a first tear film; 411. a first sliding groove; 42. a second tear film; 43. a fixed end; 44. an open end;
51. a first power mechanism; 511. a servo motor; 512. a driving gear; 513. a driven gear; 52. a second power mechanism; 521. a second power unit; 522. a driving gear; 523. a driven gear; 524. a first action lever; 5241. a first pressing part; 525. a second action lever; 526. a driving wheel shaft; 527. a driven axle; 53. a third power mechanism; 531. a servo motor; 532. a coupling; 533. a lead screw; 534. a nut; 54. a fourth power mechanism; 541. a servo motor; 542. a lead screw; 543. a nut; 55. a fifth power mechanism; 56. a sixth power mechanism; 57. a film clamping force sensing unit;
6. the anterior capsule of the lens; 61. a capsular flap.
Detailed Description
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 for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention.
Referring to fig. 1 to 10, an embodiment of the present invention discloses a lens anterior capsule tearing integrated apparatus, which includes:
a frame;
a mounting rod 2, the height and the position of the mounting rod in the horizontal plane of which are both adjustably mounted to the frame so as to respectively adjust the positions of the mounting rod in the vertical direction and the horizontal plane relative to the anterior capsule 6 of the crystalline lens, the mounting rod being rotatably mounted to the frame in the horizontal plane under the driving of a first power mechanism 51;
a capsulotomy device 3 mounted on the mounting rod, wherein the first power mechanism is mounted on the mounting rod, the capsulotomy device comprises a knife rest 31 mounted on the mounting rod, a puncturing end 32 for puncturing the anterior capsule of the crystalline lens is formed at the end of the knife rest facing the rotation axis of the capsulotomy device (see fig. 10-1 after puncturing), and a capsulotomy blade 33 for puncturing the anterior capsule of the crystalline lens from the side after the puncturing end punctures the anterior capsule of the crystalline lens is formed at the side of the knife rest facing the rotation direction of the capsulotomy device (see fig. 10-2 after puncturing);
the film tearing device 4 is adjustably mounted on the mounting rod in the vertical direction under the driving of a fifth power mechanism 55, is adjacent to the capsule tearing device and is positioned behind the capsule tearing device (the included angle between the two is 5-30 degrees, if the included angle is too small, the front capsule film is not completely torn by the film tearing device, the capsule tearing is eccentric, and the capsule tearing is too small, if the included angle is too large, the front capsule film which is torn is not timely pulled up to be accumulated, and the film tearing device is not beneficial to continuously scratching the film), comprises a pair of film tearing sheets which can be folded or unfolded mutually under the driving of a second power mechanism 52, 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.
The height of the mounting rod is adjusted to a horizontal position so that the mounting rod reaches a proper position from the crystalline lens of the cataract patient, the height of the mounting rod is lower than that of the anterior capsular sac, the mounting rod is horizontally spaced from the anterior capsular sac, then the position of the mounting rod in the horizontal direction is further adjusted so that the mounting rod gradually penetrates into the anterior capsular sac, and the position of the mounting rod in the horizontal plane is locked after the mounting rod penetrates a certain distance. Then the first power mechanism works to drive the mounting rod to rotate in the horizontal plane, the capsule membrane scratching device and the membrane tearing device synchronously rotate along with the mounting rod, the capsule membrane scratching device is arranged in front of the mounting rod, the membrane scratching blade on the side part scratches the front capsule membrane, the pair of membrane tearing pieces move downwards to the root part of the capsule membrane flap 61 (the part which is upward turned after the front capsule membrane is punctured and pulled) under the driving of the fifth power unit and clamp the root part under the driving of the second power mechanism, and the membrane tearing pieces are gradually lifted upwards under the driving of the fifth power unit along with the rotation of the mounting rod, so that the front capsule membrane is torn.
The film scratching blade scratches the front capsule film in front, the film tearing device tears the capsule film at the back, and the rotation track of the film scratching blade is strictly circular, so that the problems of eccentric capsule tearing and too small capsule tearing (see the capsule tearing effect of fig. 10-4) are avoided, the film scratching and the capsule tearing are continuous (see the capsule tearing effect of fig. 10-3), and the hand changing operation during manual operation is avoided.
Meanwhile, the angle limitation when the capsule is manually torn off eccentrically or the capsule is torn off again by using a capsule film shear when the capsule is too small is avoided; the capsulorhexis effect is good, a good foundation is laid for subsequent ultrasonic emulsification and intraocular lens implantation, and the medical effect is ensured.
When a beginner or an operation is wrong, the capsulorhexis needs to reuse the capsular scissors for cutting the opening, the cutting angle of the capsular scissors is required (the cutting angle of the capsular scissors is tangent to the opening, see the directions of arrows A and B in figures 10-5), if the cutting angle is not appropriate (the cutting angle is in the direction shown by the arrow D and obviously does not coincide with the direction of A, B as the cutting is in the direction of the arrow C in figures 10-5), the opening cannot be cut.
Greatly reduces the experience requirements of the doctor performing the operation, reduces the physical and energy loss of the doctor and greatly relieves the over-fatigue of the doctor.
It should be noted that the height of the installation rod and the position adjustment in the horizontal plane can be performed in a manual mode or a power driving mode, and the transmission mode is similar to the manual mode or the power driving mode. For example, for height adjustment, the mounting rod is mounted on the frame through a vertically arranged sliding table, and when the mounting rod slides to the appropriate position, the height of the mounting rod is locked by locking members such as locking bolts, and the difference between manual operation and power driving is only that the sliding power source is different; one way of horizontal position adjustment is for the mounting rod to be rotatably mounted to the frame in a horizontal plane by means of a bearing.
As known by those skilled in the art, the aforesaid membrane cutting edge should have a sharpness sufficient to cut the anterior capsule, and in order to ensure its sharpness and wear resistance, ceramic or other materials may be used. 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, one specific form of the first power mechanism is: the servo motor and the reducer are in transmission connection. Those skilled in the art will recognize that other drive and transmission modes may be used, and are not listed.
One mode of adjusting the height and position of the mounting rod in the horizontal plane is as follows: the frame includes base 11, stand 12 and swing arm 13, wherein:
the upright post is vertically arranged, the lower end of the upright post is fixed on the base, the swing arm is rotatably arranged at the upper end of the upright post in a horizontal plane under the driving of a first power mechanism, and the control end of the first power mechanism is in signal connection with the controller;
the installation pole is installed at the tip that the stand was kept away from to the swing arm.
The swing arm comprises a first arm 131, a second arm 132 and a third power mechanism 53, 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. The third power mechanism can be various linear transmission pairs, such as a linear sliding table, a ball screw, a cylinder, a hydraulic cylinder and the like.
It should be noted that another embodiment of the anterior capsulorhexis integrative device can further comprise a fourth power mechanism 54 in signal connection with the controller, and the mounting rod can be slidably mounted on the frame in the vertical direction under the driving of the fourth power mechanism. Therefore, the height of the mounting rod is automatically adjusted, and the height data of the mounting rod can be stored in the storage unit of the controller, so that the height adjustment of the mounting rod has a memory function.
In addition, referring to fig. 5 and 6, one of the opposite ends of the pair of tearing films is a fixed end 43, the other one is an open end 44, 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 521 (a servo motor is optionally used as the second power unit), a driving gear 522, a driven gear 523, a first action rod 524 and a second action rod 525, 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 the two tear films through a driving wheel shaft and a driven wheel shaft respectively, the two tear films are a first tear film 41 and a second tear film 42 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 526 (the driving wheel shaft is coaxially and fixedly connected with the driving gear) and the driven wheel shaft 527 (the driven gear is coaxially and fixedly connected with the driven wheel shaft), the second end of the first action rod and the second end of the second action rod respectively 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, 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 and a second pressing portion extending, a first sliding groove 411 for the first pressing part to slide along the length direction of the first tearing film is arranged at the position of the first tearing film towards the first pressing part, and a second sliding groove for the second pressing part to slide along the length direction of the second tearing film is arranged at the position of the second tearing film towards the second pressing part;
and the control end of the second power unit is in signal connection with the controller. When the first tearing diaphragm and the second tearing diaphragm clamp the capsular flap, the first pressing part and the second pressing part respectively slide along the first sliding groove and the second sliding groove, so that the first action rod and the second action rod always keep enough pressure, and meanwhile, because the first tearing diaphragm and the second tearing diaphragm are usually made of thin steel plates (suitable for the operation in the narrow space of eyes), the first action rod and the second action rod improve the integral rigidity of the film tearing device, especially, the transverse overturning in the clamping process of the first tearing diaphragm and the second tearing diaphragm is avoided, and the clamping force of the capsular flap is ensured.
The device for tearing and scratching the anterior lens capsule can further comprise a membrane clamping force sensing unit (such as a strain gauge type force sensor) which is arranged on the tearing membrane and is used for detecting the force of the two tearing membrane clamping the capsular valve, and the signal output end of the membrane clamping force sensing unit is in signal connection with the controller. The clamping force of the capsular flap is detected and automatically adjusted, so that the capsular flap is prevented from being damaged by clamping due to overlarge clamping force and is prevented from being clamped by not clamping due to undersize clamping force. Thereby ensuring that the capsular flap can be stably and continuously clamped.
The two film tearing devices are arranged in the front and back direction of the rotating direction of the mounting rod, and each film tearing device is driven by a fifth power mechanism to move along the direction close to and far away from the root of the capsular flap so as to alternately clamp the root of the capsular flap scratched by the scratching knife edge. The two membrane tearing devices can alternately clamp the root of the capsular flap, so that the capsular flap can be stably and continuously clamped; meanwhile, the capsulotomy sections are clamped from the root, so that the capsulotomy sections are further ensured to be circular, and the eccentric capsulotomy and the undersize capsulotomy are avoided.
In addition, the fifth power mechanism is a hydraulic drive telescopic branched chain.
Still another embodiment of the anterior capsulorhexis and capsulorhexis integral device can further comprise a sixth power mechanism 56 in signal connection with the controller, and the lower tool holder is driven by the sixth power mechanism to be mounted on the machine frame in a reciprocating manner along the length direction of the lower tool holder.
The sixth power mechanism is a telescopic branched chain driven by hydraulic pressure.
It should be noted that, one of the types of the power mechanisms is as follows:
the first power mechanism: referring to fig. 2, the first power mechanism for mounting the rod includes a servo motor 511, a housing of the servo motor is fixed to the free end of the second arm, the servo motor drives a driving gear 512 rotatably mounted to the second arm to rotate, the driving gear is engaged with a driven gear 513, and the driven gear, a rotation shaft of the mounting rod and the mounting rod are coaxially fixed, so that the mounting rod rotates.
The second power mechanism: as described above.
A third power mechanism: referring to fig. 7, the upright column includes an upper upright column 121 and a lower upright column 122 which can slide relative to each other, the first arm is rotatably mounted at the upper end of the upper upright column through a bearing, 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 coupler 532, the tail end of the lead screw is matched with a nut 534, the nut is fixedly connected with the second arm, the work of the servo motor drives the lead screw to rotate, and therefore the nut drives the second arm to reciprocate along the axial direction of the lead screw.
A fourth power mechanism: referring to fig. 8, the reciprocating motion between the upper and lower columns is achieved by a ball screw driven by a servo motor 541, that is, the servo motor drives a screw 542 to rotate, and a nut 543 fitted with the screw and fixed to the upper column axially moves, thereby driving the upper column to reciprocate in the vertical direction.
In addition, the embodiment of the invention controls the motion parameters of each power mechanism through the controller, and is convenient to carry out automation by referring to fig. 9.
It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicating the directions or positional relationships are based on the directions or positional relationships 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 specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The terms "comprises," "comprising," or any other similar term are intended to cover a non-exclusive inclusion, such that a process, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, article, or apparatus.
So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the 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 in the front-back direction of the rotation direction of the mounting rod, and each tearing device is driven by a fifth power mechanism to move in the 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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| CN202010712048.0A CN111728768B (en) | 2020-07-22 | 2020-07-22 | Anterior lens capsule scratching and tearing integrated equipment |
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| CN202010712048.0A CN111728768B (en) | 2020-07-22 | 2020-07-22 | Anterior lens capsule scratching and tearing integrated equipment |
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| CN111728768B CN111728768B (en) | 2022-06-03 |
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Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4708138A (en) * | 1983-10-27 | 1987-11-24 | Pazandak Bradford B | Rotating surgical cutting knife |
| US5261923A (en) * | 1992-04-23 | 1993-11-16 | Soares Christopher J | Method and apparatus for continuous circular capsulorehexis |
| US5342377A (en) * | 1992-12-18 | 1994-08-30 | Lazerson Howard E | Rotating blade capsulotomy instrument and method of performing a capsulotomy |
| US5522829A (en) * | 1992-04-16 | 1996-06-04 | Arthur D. Little Enterprises, Inc. | Surgical cutting instrument |
| US6165190A (en) * | 1999-06-01 | 2000-12-26 | Nguyen; Nhan | Capsulectomy device and method therefore |
| US20110029005A1 (en) * | 2009-07-28 | 2011-02-03 | Eye Care And Cure Corp. | Anterior capsulotomy device and procedure |
| JP2011130796A (en) * | 2009-12-22 | 2011-07-07 | Inami Co Ltd | Surgical instrument |
| CN203790132U (en) * | 2014-04-08 | 2014-08-27 | 江苏省苏北人民医院 | Full-automatic crystalline lens anterior capsule tearing-off device |
| JP2015100370A (en) * | 2013-11-21 | 2015-06-04 | 大樹 高橋 | Incision tool for anterior capsule of crystalline lens |
| CN207084900U (en) * | 2016-11-10 | 2018-03-13 | 冯桂强 | A kind of cataract cuts out capsule device |
| CN207666761U (en) * | 2017-05-18 | 2018-07-31 | 复旦大学附属中山医院 | A kind of disposable capsulorhexis discission needle head of mark with a scale |
| CN108567525A (en) * | 2018-05-17 | 2018-09-25 | 马飞 | Tweezers for eye surgery |
| US20180271704A1 (en) * | 2015-05-03 | 2018-09-27 | Mor Research Applications Ltd. | Ophthalmic surgical device for cutting a circular incision |
| CN108578060A (en) * | 2018-04-25 | 2018-09-28 | 成都冠禹科技有限公司 | A kind of cataract operation integration section capsule capsulorhexis device |
| CN208876974U (en) * | 2018-06-26 | 2019-05-21 | 东莞东华医院有限公司 | A kind of needle tweezer dual-purpose miniature capsulorhexis device |
-
2020
- 2020-07-22 CN CN202010712048.0A patent/CN111728768B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4708138A (en) * | 1983-10-27 | 1987-11-24 | Pazandak Bradford B | Rotating surgical cutting knife |
| US5522829A (en) * | 1992-04-16 | 1996-06-04 | Arthur D. Little Enterprises, Inc. | Surgical cutting instrument |
| US5261923A (en) * | 1992-04-23 | 1993-11-16 | Soares Christopher J | Method and apparatus for continuous circular capsulorehexis |
| US5342377A (en) * | 1992-12-18 | 1994-08-30 | Lazerson Howard E | Rotating blade capsulotomy instrument and method of performing a capsulotomy |
| US6165190A (en) * | 1999-06-01 | 2000-12-26 | Nguyen; Nhan | Capsulectomy device and method therefore |
| US20110029005A1 (en) * | 2009-07-28 | 2011-02-03 | Eye Care And Cure Corp. | Anterior capsulotomy device and procedure |
| JP2011130796A (en) * | 2009-12-22 | 2011-07-07 | Inami Co Ltd | Surgical instrument |
| JP2015100370A (en) * | 2013-11-21 | 2015-06-04 | 大樹 高橋 | Incision tool for anterior capsule of crystalline lens |
| CN203790132U (en) * | 2014-04-08 | 2014-08-27 | 江苏省苏北人民医院 | Full-automatic crystalline lens anterior capsule tearing-off device |
| US20180271704A1 (en) * | 2015-05-03 | 2018-09-27 | Mor Research Applications Ltd. | Ophthalmic surgical device for cutting a circular incision |
| CN207084900U (en) * | 2016-11-10 | 2018-03-13 | 冯桂强 | A kind of cataract cuts out capsule device |
| CN207666761U (en) * | 2017-05-18 | 2018-07-31 | 复旦大学附属中山医院 | A kind of disposable capsulorhexis discission needle head of mark with a scale |
| CN108578060A (en) * | 2018-04-25 | 2018-09-28 | 成都冠禹科技有限公司 | A kind of cataract operation integration section capsule capsulorhexis device |
| CN108567525A (en) * | 2018-05-17 | 2018-09-25 | 马飞 | Tweezers for eye surgery |
| CN208876974U (en) * | 2018-06-26 | 2019-05-21 | 东莞东华医院有限公司 | A kind of needle tweezer dual-purpose miniature capsulorhexis device |
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