阅读说明：本技术 一种适用于微切口白内障超声乳化手术的晶状体预劈核装置 (Lens pre-splitting nucleus device suitable for micro-incision cataract ultrasonic emulsification operation ) 是由 陈鼎 李智豪 秦怡 于 2020-07-31 设计创作，主要内容包括：一种适用于微切口白内障超声乳化手术的晶状体预劈核装置,装置的头端及连接杆可以通过2mm的微小切口进出眼内,包括连接杆,连接杆中间为中空管状,中空管状连接杆的形成有Y型的双通道结构,连接杆的后端设有弹性手柄,弹性手柄包括有弹性片,弹性片的一端连接在连接杆的杆身上,另一端为活动端,中空管状连接杆内设有丝线结构,丝线结构的一端连接在弹性片的活动端,另一端于双通道结构处分为两股形成环型圈套,本发明操作便利,学习曲线短,对于白内障的晶状体核尤其是硬核能轻松地完成彻底的劈核,且对眼内组织损伤极小,大大提高劈核的效率和安全性。利于后续的超乳手术的顺利进行。(A nucleus pre-splitting device for the lens of ultrasonic emulsification operation of micro-incision cataract is composed of a hollow tubular connecting rod with Y-shaped dual-channel structure, an elastic handle consisting of elastic piece, an elastic ring with one end connected to the rod body of said connecting rod and another end as movable end, a silk thread structure in said hollow tubular connecting rod, and two strands of silk thread structure at said dual-channel structure for forming a ring-shaped ring, can easily and completely split the nucleus of the cataractous lens nucleus, particularly the hard nucleus, has little damage to the intraocular tissues and greatly improves the efficiency and the safety of nucleus splitting. Is beneficial to the smooth proceeding of the subsequent superfulsion.)

1. The utility model provides a nucleus device is split in advance to lens suitable for little incision cataract phacoemulsification operation, includes connecting rod (1), its characterized in that, connecting rod (1) in the middle of be the cavity tubulose, the cavity tubulose the front end of connecting rod (1) be formed with binary channels structure (2) of Y type, the rear end of connecting rod (1) be equipped with elastic handle (3), elastic handle (3) including flexible piece (31), the one end of flexible piece (31) connect on the pole body of connecting rod (1), the other end is the expansion end, the cavity tubulose connecting rod (1) in be equipped with silk thread structure (4), the one end of silk thread structure (4) connect the expansion end in flexible piece (31), the other end is two strands of formation rings type in binary channels structure (2) punishment, elastic piece (31) including the expansion end to connecting rod (1) distal end removal make binary channels structure (2) locate the silk thread structure (4) of ring type to receive The contracted cutting position and the snare position of which the movable end is positioned at the near end of the connecting rod (1) to enable the silk thread to be in an extended state.

2. The device for pre-splitting the nucleus of the crystalline lens suitable for the micro-incision cataract ultrasonic emulsification operation as claimed in claim 1, wherein a filling part (21) for preventing the wire structure (4) from being worn by the edge of the double-channel structure (2) is arranged between the Y-shaped double-channel structure (2), and the filling part (21) is flush with the edge of the double-channel structure (2).

3. The lens nucleus pre-splitting device suitable for micro-incision cataract phacoemulsification surgery as claimed in claim 2, wherein the filling part (21) is provided with an arc-shaped groove (22) in the same direction as the wire structure (4) for accommodating the wire structure (4) in the middle.

4. The device for pre-splitting the nucleus of the crystalline lens suitable for the micro-incision cataract ultrasonic emulsification operation as claimed in claim 1, wherein the silk thread structure (4) is two silk threads, and the two silk threads are connected with the movable end of the elastic sheet (31) by tying one silk thread at one side of the elastic handle (3) of the connecting rod (1).

5. The device for pre-splitting a nucleus of a crystalline lens suitable for a micro-incision cataract ultrasonic emulsification surgery as claimed in claim 1, wherein the wire structure (4) is two wires, and the two wires are both connected to the movable end of the elastic sheet (31).

6. The device for pre-splitting the nucleus of the crystalline lens suitable for the micro-incision cataract ultrasonic emulsification operation as claimed in claim 1, wherein a silk thread stretching amount adjusting mechanism is further arranged on the elastic handle (3), and the silk thread stretching amount adjusting mechanism is arranged at the movable end of the elastic sheet (31).

7. The device for pre-splitting the nucleus of the crystalline lens suitable for the micro-incision cataract ultrasonic emulsification operation is characterized in that the silk thread stretching amount adjusting mechanism comprises a screw rod (5) and a nut (6), the silk thread structure (4) is connected to one end of the screw rod (5), the nut (6) is fixedly connected with the movable end of the elastic sheet (31), and the screw rod (5) and the nut (6) are in threaded fit to realize the adjustment of the stretching amount and the snare size of the annular silk thread structure (4) at the double-channel structure (2).

8. The phaco pre-splitting nucleus device for micro-incision phacoemulsification surgery as claimed in claim 1, wherein the wire structure (4) is a rigid and flexible wire.

9. The device for pre-splitting the nucleus of the crystalline lens suitable for the micro-incision cataract ultrasonic emulsification operation as claimed in claim 1, wherein the Y-shaped double-channel structure (2) is formed with a double-channel inlet structure (7) in the hollow tubular connecting rod (1), and two silk threads respectively extend into the Y-shaped double-channel structure (2) through the double-channel inlet structure (7).

10. The lens nucleus pre-splitting device suitable for micro-incision cataract phacoemulsification surgery as claimed in claim 1, wherein the elastic handle (3) is provided with anti-slip stripes for increasing friction force for holding.

Technical Field

The invention relates to the technical field of ophthalmic medical instruments, in particular to a lens nucleus pre-splitting device suitable for micro-incision cataract ultrasonic emulsification surgery.

Background

The phacoemulsification surgery has become the standard surgical method for cataract treatment and is widely applied clinically. With the advancement of surgical equipment and techniques, the surgical incision for cataract can be reduced to 2mm or less, more minimally invasive and faster postoperative recovery. However, micro-incision surgery can increase the difficulty and risk of hard cataract (grade 4 nuclear hardness and above) surgery. The nucleus splitter commonly used in cataract surgery at present greatly reduces the nucleus splitting success rate and efficiency of hard nucleus, has larger operation difficulty, needs a certain learning curve, and easily damages intraocular tissues in the operation process. In the cataract ultrasonic emulsification operation, the nucleus pre-splitting technology can be generally adopted to improve the nucleus splitting efficiency and reduce the use of ultrasonic energy in the operation. However, there is no convenient and efficient lens pre-splitting nucleus device suitable for micro incision (less than or equal to 2 mm).

Disclosure of Invention

In order to solve the technical defects in the prior art, the invention provides a lens nucleus pre-splitting device suitable for micro-incision cataract ultrasonic emulsification operation.

The technical solution adopted by the invention is as follows: a crystalline lens pre-splitting nucleus device suitable for micro-incision cataract ultrasonic emulsification operation, which comprises a connecting rod, the middle of the connecting rod is hollow tubular, the front end of the hollow tubular connecting rod is provided with a Y-shaped double-channel structure, the back end of the connecting rod is provided with an elastic handle which comprises an elastic sheet, one end of the elastic sheet is connected on the rod body of the connecting rod, the other end is a movable end, a silk thread structure is arranged in the hollow tubular connecting rod, one end of the silk structure is connected with the movable end of the elastic sheet, the other end is divided into two strands at the double-channel structure to form a ring-shaped snare, the elastic sheet comprises a cutting position and a snare position, wherein the movable end of the cutting position moves towards the far end of the connecting rod to enable the looped silk thread structure at the double-channel structure to contract, and the snare position is formed by enabling the movable end of the snare position to be located at the near end of the connecting rod to enable the silk thread to be in an extending state.

The double-channel structure of Y type between be equipped with the filling portion that prevents the silk thread structure by double-channel structure edge wearing and tearing, filling portion and double-channel structure's edge parallel and level.

The middle of the filling part is provided with an arc-shaped groove which is in the same direction as the silk thread structure and is used for accommodating the silk thread structure.

The silk thread structure is two strands of silk threads, and the two strands of silk threads are knotted into one strand of silk thread on one side of the elastic handle of the connecting rod to be connected with the movable end of the elastic sheet.

The silk thread structure be two strands of silk threads, two strands of silk threads all are connected at the expansion end of elastic sheet.

The elastic handle is also provided with a silk thread stretching amount adjusting mechanism, and the silk thread stretching amount adjusting mechanism is arranged at the movable end of the elastic sheet.

The silk thread flexible volume adjustment mechanism include screw rod and nut, silk thread structural connection in the one end of screw rod, the movable end fixed connection of nut and flexure strip, screw rod and nut between screw-thread fit realize the silk thread structural flexible volume of binary channels department ring type and the regulation of snare size.

The wire structure is a metal wire with rigidity and toughness.

The Y-shaped double-channel structure is formed in the hollow tubular connecting rod, a double-channel inlet structure is formed in the hollow tubular connecting rod, and the two silk threads extend into the Y-shaped double-channel structure through the double-channel inlet structure respectively.

The elastic handle is provided with anti-slip stripes for increasing the friction force of the hand.

The invention has the beneficial effects that: the invention provides a crystalline lens pre-splitting nucleus device suitable for micro-incision cataract ultrasonic emulsification operation, the head end of the device and a connecting rod can pass through a 2mm micro incision to enter and exit from an eye, the device comprises the connecting rod, the middle part of the connecting rod is hollow tubular, a Y-shaped double-channel structure is formed on the hollow tubular connecting rod, an elastic handle is arranged at the rear end of the connecting rod, the elastic handle comprises an elastic sheet, one end of the elastic sheet is connected on the rod body of the connecting rod, the other end of the elastic sheet is a movable end, a silk thread structure is arranged in the hollow tubular connecting rod, one end of the silk thread structure is connected with the movable end of the elastic sheet, the other end of the silk thread structure is divided into two strands at the double-channel structure to form a ring-shaped ring, the elastic sheet comprises a cutting position where the movable end, the invention has convenient operation and short learning curve, can easily and completely split the cataract lens nucleus, especially the hard nucleus, has little damage to the intraocular tissue, and greatly improves the efficiency and the safety of splitting the nucleus. Is beneficial to the smooth proceeding of the subsequent superfulsion.

Drawings

FIG. 1 is a schematic view of the spring plate of the present invention in a relaxed state.

FIG. 2 is a schematic view of the spring plate of the present invention in a pinched state.

FIG. 3 is a schematic view of the two strands of filaments directly connected to the screw in a relaxed state.

FIG. 4 is a schematic structural view of the two strands of silk threads directly connected with the screw in a pinching state.

The device comprises a connecting rod 1, a double-channel structure 2, an elastic handle 3, a silk thread structure 4, a screw rod 5, a nut 6, a double-channel inlet structure 7, a filling part 21, an arc-shaped groove 22 and an elastic sheet 31.

Detailed Description

The invention is further described by combining fig. 1, fig. 2 and fig. 3, and a lens nucleus pre-splitting device suitable for micro-incision cataract ultrasonic emulsification surgery, the head end of the device and a connecting rod can enter and exit from an eye through a 2mm micro-incision, the device comprises a connecting rod 1, the middle of the connecting rod 1 is hollow tubular, a Y-shaped double-channel structure 2 is formed at the front end of the hollow tubular connecting rod 1, an elastic handle 3 is arranged at the rear end of the connecting rod 1, the elastic handle 3 comprises an elastic sheet 31, one end of the elastic sheet 31 is connected to a rod body of the connecting rod 1, the other end is a movable end, a thread structure 4 is arranged in the hollow tubular connecting rod 1, and the thread structure 4 is a metal wire with rigidity and toughness. One end of the silk thread structure 4 is connected to the movable end of the elastic sheet 31, the other end of the silk thread structure is divided into two strands at the position of the double-channel structure 2 to form a ring-shaped snare, the elastic sheet 31 comprises a cutting position and a snare position, wherein the movable end of the cutting position moves towards the far end of the connecting rod 1 to enable the silk thread structure 4 of the double-channel structure 2 to contract, and the snare position is located at the near end of the connecting rod 1 to enable the silk thread to be in. The invention has simple operation, does not need too long learning period, has little damage to tissues around eyes and is beneficial to prognosis. For cataract with hard nucleus, the nucleus cleavage can be easily completed, and the subsequent superfulsive operation can be smoothly carried out.

The double-channel structure 2 of Y type between be equipped with and prevent that silk thread structure 4 is by filling portion 21 of double-channel structure 2 edge wearing and tearing, filling portion 21 and double-channel structure 2's edge parallel and level. The middle of the filling part 21 is provided with an arc-shaped groove 22 which is in the same direction as the thread structure 4 and is used for accommodating the thread structure 4.

The thread structure 4 may be two threads, and the two threads are knotted at one side of the elastic handle 3 of the connecting rod 1 to form one thread connected to the movable end of the elastic piece 31.

The thread structure 4 may also be two threads, and the two threads are both connected to the movable end of the elastic sheet 31.

The elastic handle 3 is further provided with a silk thread stretching amount adjusting mechanism, and the silk thread stretching amount adjusting mechanism is arranged at the movable end of the elastic sheet 31. The silk thread flexible volume adjustment mechanism include screw rod 5 and nut 6, silk thread structure 4 connect in the one end of screw rod 5, nut 6 and flexure strip 31's expansion end fixed connection, screw rod 5 and nut 6 between the screw-thread fit realize the silk thread structure 4 flexible volume of 2 ring types of binary channels structure and the regulation of snare size, realize adjusting through swivel nut 6.

The double-channel structure 2 of Y type be formed with binary channels entry structure 7 in hollow tubulose connecting rod 1, two strands of silk threads extend to the double-channel structure 2 of Y type through binary channels entry structure 7 respectively in, prevent that two strands of silk threads from twisting the winding.

The elastic handle 3 is provided with anti-slip stripes for increasing the friction force of hand holding.

The use method of the invention comprises the following steps: after the cataract capsulorhexis operation is finished, the crystalline lens is fully separated from the water to enable the crystalline lens to obliquely float out of the opening of the capsular bag, part of the crystalline lens enters the anterior chamber, the spring piece handle of the device is pinched, and at the moment, the upper end of the metal wire is recovered in the funnel-shaped arc-shaped groove, the size of the metal wire is small, and the metal wire enters eyes through a 2mm micro-incision. Then the spring leaf is loosened to restore the upper end of the metal wire to the snare state. The position of the snare is adjusted under the microscope to nest the equator of the lens. Then the spring piece handle is pinched, the metal wire is recovered, and the ring sleeve is tightened, thereby achieving the cutting effect. The above operations may be repeated for the hard core, which is cut into smaller blocks. After the nucleus splitting is finished, the elastic sheet handle is continuously pinched and slowly withdrawn from the eye.

In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred 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" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

The skilled person should understand that: although the invention has been described in terms of the above specific embodiments, the inventive concept is not limited thereto and any modification applying the inventive concept is intended to be included within the scope of the patent claims.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.