CN114191174A

CN114191174A - Multifunctional cataract surgery hook and surgery device thereof

Info

Publication number: CN114191174A
Application number: CN202111547502.2A
Authority: CN
Inventors: 陈拥军; 霍永军; 贾晓丹; 赵浩飞; 宋林芳; 孔佳慧
Original assignee: Anyang Ophthalmic Hospital
Current assignee: Anyang Ophthalmic Hospital
Priority date: 2021-12-16
Filing date: 2021-12-16
Publication date: 2022-03-18
Anticipated expiration: 2041-12-16
Also published as: CN114191174B

Abstract

The invention provides a multifunctional cataract surgery hook and a surgery device thereof, in the clinical cataract surgery process, when special conditions such as rupture of a lens posterior capsule membrane occur, broken nuclear blocks (particle focuses) with different sizes are remained in the multifunctional cataract surgery hook, the diameter of the traditional surgery hook is thin, and the particle focuses are not easy to be fixed and captured; the invention skillfully utilizes the characteristic that the diameter of the suction needle head is larger, provides a group of detachable catching nets for the hook head, the contour of the catching net is far larger than the diameter of the tail end of the hook head, and the catching effect on the particle focus is good; during cataract surgery, the catching net is carried into the anterior chamber through the suction needle head, and the surgery hook is connected with the catching net through balloon expansion, so that free particle focuses can be caught after the catching net is separated from the suction needle head, the catching effect is good, and the particle focuses are sent to the suction needle head to be sucked; the multifunctional cataract operation hook and the cataract operation device can conveniently remove particle focus in the anterior chamber, reduce operation time and improve operation efficiency.

Description

Multifunctional cataract surgery hook and surgery device thereof

Technical Field

The invention relates to an auxiliary tool for cataract surgery, in particular to a multifunctional cataract surgery hook and a surgery device thereof.

Background

In the process of cataract surgery, two incisions are needed to be made on the cornea of the eyeball of a patient, wherein a main incision is used for entering a crushing/suction needle head to crush and suck the crystalline lens nucleus, an auxiliary incision is used for entering a surgical hook (also called nucleus splitting hook) to fix, split and capture the crystalline lens nucleus and a nucleus crushing block (particle focus) thereof, and the crushing and suction operation of the crystalline lens nucleus is further assisted, so that the operation is more convenient and safer.

The hook head of the traditional surgical hook is generally thin in diameter and can be easily handled in the normal cataract surgery process, but in some special cases, such as when the posterior capsule of crystalline lens is broken, the residual nucleus fragmentation blocks with different sizes are not easy to fix and capture, and the effect of the traditional surgical hook is not good; at this time, it is desirable to create a new surgical hook with a head having a specific design to facilitate the fixation, capture, and cleaning of the fragmented lens nucleus (granular lesion) under these specific surgical conditions, thereby increasing the efficiency and safety of the procedure.

Disclosure of Invention

The invention aims to overcome the defects of the background technology and provides a multifunctional cataract surgery hook and a surgery device thereof.

The embodiment of the invention is realized by the following technical scheme:

a multifunctional cataract surgery hook comprises a surgery hook body and a catching net, wherein a group of balloon bodies are arranged at the tail end of a hook head of the surgery hook body, the balloon bodies are communicated with an inner cavity of the surgery hook body, and are inflated/deflated through the inner cavity of the surgery hook, and the balloon bodies have a first state that the balloon bodies are expanded to be larger than the outer diameter of the tail end of the hook head and a second state that the balloon bodies are reduced to be not larger than the outer diameter of the tail end of the hook head;

the catching net is provided with a first end and a second end which are opposite, and the inner diameter of the catching net is gradually enlarged from the first end to the second end so as to catch the particle focus; the first end of the catching net is provided with a movable joint part, the movable joint part is internally provided with a leading-in cavity and an expansion cavity which are communicated with each other, and the leading-in cavity extends to the first end face of the movable joint part; the inner diameter of the leading-in cavity is matched with the outer diameter of the tail end of the hook head, the inner diameter of the expanded cavity is matched with the outer diameter of the balloon body in the first state, and the hook head can be connected with the catching net after the balloon body inserted into the expanded cavity is expanded; the second end of the catching net is provided with a first magnetic ring which is used for being adsorbed at the end part of the suction needle head, and the catching net is separated from the suction needle head through the expansion connection of the balloon body inserted into the enlarged cavity and the catching net.

Further, the operation hook body comprises a pipe body and a hook head arranged at the end part of the first end of the pipe body, the hook head is communicated with the inside of the pipe body, a piston is connected in the pipe body in a sealing mode, the piston is connected with an end arranged outside the second end of the pipe body, and a threaded part in threaded connection with the inner wall of the second end of the pipe body is arranged on the end, so that the balloon body can be inflated/deflated by screwing the end.

Further, the inside chamber of deriving that still is equipped with of second end of portion of articulating, derive the chamber with enlarge the chamber intercommunication, and derive the internal diameter in chamber the same with leading-in chamber internal diameter for when carrying on the seizure net of granule focus adsorbs on the suction needle again, the spheroid accessible under the second state is derived the chamber and is extruded the granule focus.

Furthermore, still be equipped with the leather sheath portion of cladding on the terminal lateral wall of gib head on the spheroid, increase the joint strength and the gas tightness with the gib head.

A set of cataract surgery devices comprises the multifunctional cataract surgery hook and the suction needle head, wherein the end part of the suction needle head is provided with a second magnetic ring which can attract the first magnetic ring.

Furthermore, a cutting piece for cutting particle focuses is arranged in the second magnetic ring, and the adsorbed large particle focuses can be cut into small particle focuses through which the suction needle head can pass.

Further, the end part of the suction needle head and the second magnetic ring are supported through a plurality of rod-shaped connecting parts, so that a suction hole communicated with the inside of the suction needle head is formed between the adjacent connecting parts, and the suction hole is used for passing through a particle focus with the diameter not larger than the inner diameter of the suction needle head.

Furthermore, a pull wire is arranged in the suction device connected with the suction needle head, and the pull wire penetrates through the second magnetic ring to be connected with the catching net, so that the connection reliability of the catching net and the suction needle head can be further enhanced.

The technical scheme of the embodiment of the invention at least has the following advantages and beneficial effects:

in the clinical cataract operation process, when the posterior capsule membrane of the crystalline lens breaks and other special conditions, particle focuses with different sizes are remained in the cataract operation process, and the diameter of the traditional operation hook is thin, so that the particle focuses are not easy to fix and capture; the invention skillfully utilizes the characteristic that the diameter of the suction needle head is larger, provides a group of detachable catching nets for the hook head, the contour of the catching net is far larger than the diameter of the tail end of the hook head, and the catching effect on the particle focus is good; during cataract surgery, the catching net is carried into the anterior chamber through the suction needle head, and the surgery hook is connected with the catching net through balloon expansion, so that the free particle focus can be caught after the catching net is separated from the suction needle head, the catching effect is good, and the particle focus is sent to the suction needle head to be sucked;

the multifunctional cataract operation hook and the cataract operation device can conveniently and quickly remove particle focus in the anterior chamber, reduce operation time and improve operation efficiency.

Drawings

FIG. 1 is a view showing the state of use of the multifunctional cataract surgery hook of the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is an enlarged view of portion B of FIG. 2;

FIG. 4 is a schematic view of the construction of the suction needle of the present invention;

icon: 1-anterior chamber, 10-granular lesion, 2-suction needle, 20-second magnetic ring, 21-suction hole, 22-connecting part, 23-cutting piece, 24-stay wire, 3-surgical hook body, 30-tube body, 31-piston, 32-end, 320-threaded part, 33-hook head, 34-balloon body, 340-leather sheath part, 4-catching net, 40-movable part, 400-leading-in cavity, 401-expanding cavity, 402-leading-out cavity, 41-extending sleeve and 5-first magnetic ring.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

The first embodiment is as follows:

referring to fig. 1 to 4, the present invention provides a multifunctional cataract surgery hook, which comprises a surgery hook body 3 and a catching net 4, wherein a set of balloon bodies 34 is disposed at the end of a hook head 33 of the surgery hook body 3, the balloon bodies 34 are communicated with the inner cavity of the surgery hook body 3, so as to inflate/deflate the balloon bodies 34 through the inner cavity of the surgery hook, and the balloon bodies 34 have a first state of expanding to be larger than the outer diameter of the end of the hook head 33 and a second state of reducing to be not larger than the outer diameter of the end of the hook head 33.

Generally, the outer diameter of the distal end of the hook head 33 is relatively thin, and the diameter of the balloon body 34 in the first state may be about 1.1 to 1.3 times the outer diameter of the distal end of the hook head 33; since there are some cases that the particle focus 10 in the anterior chamber 1 is not easily sucked by the suction device, the diameter of the hook head 33 of the existing surgical hook is too thin to efficiently push the particle focus 10 to the suction needle 2 of the suction device, then the capture net 4 is used for capturing the particle focus 10 in the anterior chamber 1, and the profile of the capture net 4 is much larger than the outer diameter of the end of the hook head 33.

In this embodiment, the capturing net 4 has a first end (corresponding to the upper end of the capturing net 4 in fig. 2) and a second end opposite to each other, and the inner diameter of the capturing net 4 gradually increases from the first end to the second end to capture particle lesions 10 of different sizes; a movable joint part 40 is arranged at the first end of the catching net 4, an introduction cavity 400 and an expansion cavity 401 which are communicated with each other are arranged in the movable joint part 40, and the introduction cavity 400 extends to the first end face of the movable joint part 40; the inner diameter of the introduction chamber 400 is matched with the outer diameter of the end of the hook 33, the inner diameter of the enlarged chamber 401 is matched with the outer diameter of the balloon 34 in the first state, and the hook 33 and the catching net 4 can be connected after the balloon 34 inserted into the enlarged chamber 401 is expanded.

In terms of how to conveniently expand or contract the balloon 34, in this embodiment, referring to fig. 1, the surgical hook body 3 includes a tube 30 and the hook 33 disposed at a first end of the tube 30, the hook 33 is communicated with the inside of the tube 30, a piston 31 is hermetically connected in the tube 30, the piston 31 is connected to a head 32 disposed outside a second end of the tube 30, the head 32 is provided with a threaded portion 320 in threaded connection with an inner wall of the second end of the tube 30, the balloon 34 is inflated/deflated by screwing the head 32 in a forward or reverse direction, the adjustment is convenient, and after the adjustment, the threaded portion 320 further has a pressure locking function to prevent the balloon 34 from going out.

Referring to fig. 4, in some embodiments, the balloon 34 is further provided with a leather sheath 340 covering the outer side wall of the end of the hook 33, so as to increase the connection strength and the air tightness with the hook 33.

In this embodiment, the second end of the capturing net 4 is provided with the first magnetic ring 5, since the suction needle 2 is large for being attached to the end of the suction needle 2, and in this embodiment, the diameter of the second end of the capturing net 4 is equal to the diameter of the suction needle 2, after the capturing net 4 is attached to the suction needle 2, the free particle focus 10 in the anterior chamber 1 is inserted into the anterior chamber along another group of incisions by the suction needle 2 being carried into the anterior chamber 1 by the suction needle 2 through the incision on the cornea, the balloon 34 on the surgical hook is inserted into the enlarged cavity 401 for inflation, the balloon 34 inserted into the enlarged cavity 401 is connected with the capturing net 4 in an inflation manner, and then the capturing net 4 is separated from the suction needle 2.

The catching net 4 may be an integral funnel structure, in this embodiment, in order to reduce the resistance, the catching net 4 is provided with a mesh structure with filaments, the movable connection portion 40 is a solid structure made of plastic, metal or ceramic, and in some embodiments, the movable connection portion 40 further has an extension sleeve 41 covering a part of the mesh of the filaments to reduce the expansion of the inner diameter of the mesh of the filaments due to the deformation of the mesh of the filaments.

In addition, referring to fig. 2 and 3, a discharge chamber 402 is further disposed inside the second end of the movable connection portion 40, the discharge chamber 402 is communicated with the enlarged chamber 401, and the inner diameter of the discharge chamber 402 is the same as that of the introduction chamber 400, so that when the capturing net 4 carrying the particle lesion 10 is adsorbed again on the suction needle 2, the balloon 34 contracted to the second state may extrude the particle lesion 10 through the discharge chamber 402.

Example two:

referring to fig. 1 to 4, the present invention also provides a set of cataract surgery devices, which comprises the multifunctional cataract surgery hook and the suction needle 2, and in the embodiment, the suction needle 2 is improved.

Referring to fig. 1 and 3, the end of the suction needle 2 is provided with a second magnetic ring 20 which can attract the first magnetic ring 5; the second magnetic ring 20 is internally provided with a cutting piece 23 for cutting the particle focus 10, when the diameter of the large particle focus 10 is too large to pass through the suction needle 2, the adsorbed large particle focus 10 can be pressed down and cut into the small particle focus 10 which can pass through the suction needle 2 by the extrusion of the balloon 34.

In addition, the end of the aspiration needle 2 and the second magnetic ring 20 are supported by a plurality of rod-shaped connecting portions 22 to form an aspiration hole 21 communicating with the inside of the aspiration needle 2 with the adjacent connecting portions 22, and the aspiration hole 21 is used for passing the particle lesion 10 having a diameter not larger than the inner diameter of the aspiration needle 2.

Further, a pulling wire 24 is provided in the suction device connected to the suction needle 2, the pulling wire 24 passes through the second magnetic ring 20 to be connected to the catching net 4, so that the reliability of the connection of the catching net 4 to the suction needle 2 can be further enhanced, and the other end of the pulling wire 24 is tied in the suction device.

After the cataract surgery device sucks the particle focus 10, the catching net 4 connected with the surgery hook is adsorbed to the suction needle head 2, the balloon body 34 is contracted, the surgery hook is separated from the catching net 4, the surgery hook and the suction needle head 2 can be respectively drawn out, the subsequent treatment of the incision is carried out, in the process, the catching net 4 does not need to go in and out along with the surgery hook, and the secondary damage to the incision is reduced.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The multifunctional cataract surgery hook is characterized by comprising a surgery hook body (3) and a catching net (4), wherein the tail end of a hook head (33) of the surgery hook body (3) is provided with a group of balloon bodies (34), the balloon bodies (34) are communicated with an inner cavity of the surgery hook body (3) so as to inflate/deflate the balloon bodies (34) through the inner cavity of the surgery hook body (3), and the balloon bodies (34) have a first state of expanding to be larger than the outer diameter of the tail end of the hook head (33) and a second state of contracting to be not larger than the outer diameter of the tail end of the hook head (33);

the catching net (4) is provided with a first end and a second end which are opposite, and the inner diameter of the catching net (4) is gradually enlarged from the first end to the second end so as to catch the particle focus (10); a movable connection part (40) is arranged at the first end of the catching net (4), an introduction cavity (400) and an expansion cavity (401) which are communicated with each other are arranged in the movable connection part (40), and the introduction cavity (400) extends to the first end face of the movable connection part (40); the inner diameter of the leading-in cavity (400) is matched with the outer diameter of the tail end of the hook head (33), the inner diameter of the expanded cavity (401) is matched with the outer diameter of the balloon body (34) in the first state, and the hook head (33) can be connected with the catching net (4) after the balloon body (34) inserted into the expanded cavity (401) is expanded; the second end of the catching net (4) is provided with a first magnetic ring (5) which is used for being adsorbed at the end part of the suction needle (2), and then the catching net (4) is separated from the suction needle (2) through the expansion connection of the balloon body (34) inserted into the enlarged cavity (401) and the catching net (4).

2. The multi-functional cataract surgical hook of claim 1, wherein: operation hook body (3) include body (30) and set up on body (30) first end tip gib head (33), gib head (33) and body (30) inside intercommunication, and body (30) internal seal is connected with piston (31), and piston (31) are connected with end (32) that set up outside the second end of body (30), are equipped with on end (32) with the second of body (30) end inner wall threaded connection's screw thread portion (320) to through twisting end (32), make balloon body (34) fill/deflate.

3. The multifunctional cataract surgical hook of claim 1 or 2, wherein: and a leading-out cavity (402) is further arranged inside the second end of the movable connection part (40), the leading-out cavity (402) is communicated with the enlarged cavity (401), and the inner diameter of the leading-out cavity (402) is the same as that of the leading-in cavity (400).

4. The multi-functional cataract surgical hook of claim 3, wherein: the balloon body (34) is also provided with a leather sheath part (340) coated on the outer side wall of the tail end of the hook head (33).

5. A set of cataract surgery devices, characterized in that comprises the multifunctional cataract surgery hook of claim 3 or 4 and the suction needle (2), wherein the end of the suction needle (2) is provided with a second magnetic ring (20) which can attract the first magnetic ring (5).

6. The cataract surgery device according to claim 5, wherein a cutting piece (23) for cutting the particle focus (10) is arranged in the second magnetic ring (20).

7. The cataract surgery device according to claim 6, wherein the end of the suction needle (2) and the second magnetic ring (20) are supported by a plurality of rod-shaped connecting portions (22) to form a suction hole (21) communicating with the inside of the suction needle (2) with the adjacent connecting portions (22), and the suction hole (21) is used for passing a particle focus (10) having a diameter not larger than the inner diameter of the suction needle (2).

8. The cataract surgery device according to claim 7, wherein a pulling wire (24) is provided in the suction device connected to the suction needle (2), and the pulling wire (24) passes through the second magnetic ring (20) to be connected to the capturing net (4).