A cataract compensation and salvage device

Abstract

The present invention discloses a cataract compensation and salvage device, which includes an inserter and a device body. The inserter includes a guiding tube with an axial cavity inside, a push rod is arranged in the guiding tube, a connecting component is arranged at one end of the push rod, and the other end of the push rod extends out from the end of the guiding tube; the device body includes a base rod, several arc-shaped elastic rods are connected to one end of the base rod, protective films are arranged between the base rod and the elastic rods and between adjacent elastic rods, and the other end of the base rod is detachably connected to the push rod through the connecting component. The present invention can, after problems such as posterior capsule rupture or zonular fiber rupture occur, insert the protective film structure through a side incision to isolate the vitreous body, prevent the nuclear mass from sinking into the vitreous body, and enable the phacoemulsification operation to continue safely.

Description

Technical Field

[0001] The present invention relates to the technical field of ophthalmic surgical instruments, and particularly to a cataract compensation and salvage device. Background Art

[0002] Cataract is caused by lens opacity, and the principle of the surgery is to replace the lens with a transparent intraocular lens. During cataract surgery, once the posterior capsule ruptures or the zonular ligament breaks, the lens nucleus loses support and sinks into the vitreous body, which will make it impossible to continue phacoemulsification surgery. It is necessary to use an extended procedure such as vitrectomy, otherwise serious postoperative complications such as macular edema, retinal detachment, and secondary glaucoma may occur, bringing a heavy burden to both doctors and patients. Summary of the Invention

[0003] In order to solve the above-mentioned disadvantages existing in the prior art, the present invention provides a cataract compensation and salvage device, and the specific scheme is as follows:

[0004] It includes an inserter and a device body. The inserter includes a guiding tube with an axial cavity inside. A push rod is arranged inside the guiding tube. One end of the push rod is provided with a connecting component, and the other end of the push rod extends out from the end of the guiding tube;

[0005] The device body includes a base rod. One end of the base rod is provided with a plurality of arc-shaped elastic rods. Protective films are provided between the base rod and the elastic rods and between adjacent elastic rods. The other end of the base rod is detachably connected to the push rod through the connecting component.

[0006] Further, the connecting component includes a connecting head vertically arranged at the end of the push rod, and a connecting hole matching with the connecting head is provided at the end of the base rod.

[0007] Further, the number of the elastic rods is one. The base rod and the elastic rod are bent to the same side to form arc-shaped rods with the same radian without force, and the protective film is fixedly connected to the inner circle of the arc-shaped rod.

[0008] Further, a pull rope cavity is provided at the edge of the protective film corresponding to the notch of the arc-shaped rod. A pull rope is arranged inside the pull rope cavity. One end of the pull rope is fixedly connected to the end of the elastic rod; a base rod cavity is provided inside the base rod, and the other end of the pull rope extends out of the base rod through the base rod cavity.

[0009] Further, a tooth engaging hole communicating with the base rod cavity is opened at a position of the base rod close to the end. A tooth engaging member perpendicular to the base rod is arranged inside the tooth engaging hole; the fixing member of the tooth engaging member is fixedly connected to the inner wall of the base rod cavity, the movable member of the tooth engaging member extends out of the tooth engaging hole, and the end of the pull rope passes through the working part of the tooth engaging member and then extends out from the end of the push rod.

[0010] Further, the number of the elastic rods is two, and the two elastic rods are symmetrically arranged on both sides of the base rod. The base rod is a straight rod. When not under force, the ends of the two elastic rods are bent towards the base rod to form two arc-shaped rods. An axially arranged movable groove is formed on the base rod, and a pin cooperating with the movable groove is arranged at the end of the arc-shaped rod.

[0011] Further, the number of the elastic rods is two, and the ends of the two elastic rods are hinged through an elastic member. The base rod is connected to one of the elastic members. The base rod is a straight rod. When not under force, the two elastic rods form an ellipse.

[0012] Further, a traction sleeve is arranged on the other elastic member of the two elastic rods, and the axis of the traction sleeve is located on the extension line of the axis of the base rod.

[0013] Further, the number of the elastic rods is a positive even number and the elastic rods are symmetrically arranged on both sides of the base rod. The base rod is a straight rod. When not under force, a plurality of elastic rods are bent towards both sides of the base rod to form a plurality of arc-shaped rods. The radian of two adjacent arc-shaped rods located on the same side of the base rod is different.

[0014] Further, the protective film can also be in a net shape, and the diameter of the mesh holes of the net-shaped protective film is less than or equal to 1 mm.

[0015] The beneficial effect of the present invention lies in that:

[0016] The cataract compensation and rescue device provided by the present application can, after problems such as posterior capsule rupture or zonular fiber rupture occur, extend the protective film structure through a side incision to isolate the vitreous body, prevent the nuclear mass from sinking into the vitreous body, and enable the phacoemulsification operation to continue safely. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the present invention,

[0018] Figure 2 is a schematic structural diagram of the implantor of the present invention,

[0019] Figure 3 is a schematic structural diagram of the device body of the present invention,

[0020] Figure 4 is a schematic connection diagram of the pull rope and the protective film of the present invention,

[0021] Figure 5 is Figure 8 the enlarged structural view of part A in

[0022] Figure 6Schematic diagram of the working state of some other embodiments of the present invention

[0023] Figure 7 Schematic diagram of the storage state of the elastic rod in some other embodiments of the present invention

[0024] Figure 8 Schematic diagram of the working state of some other embodiments of the present invention

[0025] Figure 9 Schematic diagram of the storage state of the elastic rod in some other embodiments of the present invention

[0026] Figure 10 Specific application of some other embodiments of the present invention

[0027] Figure 11 Schematic diagram of the working state of some other embodiments of the present invention

[0028] Figure 12 Schematic diagram of the storage state of the elastic rod in some other embodiments of the present invention

[0029] Reference numerals and names of the drawings: 1. Implanter, 101. Guide tube, 102. Pusher rod, 2. Device body, 201. Base rod, 202. Elastic rod, 203. Base rod cavity, 204. Locking teeth, 205. Movable groove, 3. Connection assembly, 301. Connector, 302. Connection hole, 4. Protective film, 401. Pull cord cavity, 402. Pull cord, 5. Booster, 6. Traction sleeve Detailed description of the specific embodiments

[0030] To describe in detail the technical content, structural features, achieved objectives and effects of the present invention, the following examples are hereby cited and described in detail in conjunction with the drawings

[0031] Combined with Figure 1 and Figure 2 , the cataract compensation and salvage device disclosed by the present invention includes an implanter 1 and a device body 2. The implanter 1 includes a guide tube 101 with an axial cavity inside. A pusher rod 102 is arranged inside the guide tube 101. One end of the pusher rod 102 is provided with a connection assembly 3, and the other end of the pusher rod 102 extends out from the end of the guide tube 101. The end of the guide tube is connected with a booster 5 in the form of a syringe structure, and the end of the pusher rod is connected with the piston of the booster, making it more convenient for doctors to hold and operate the implanter

[0032] As Figure 3 , the device body 2 includes a base rod 201. One end of the base rod 201 is provided with an arc-shaped elastic rod 202. A protective film 4 is arranged between the base rod 201 and the elastic rod 202. The other end of the base rod 201 is detachably connected with the pusher rod 102 through the connection assembly 3

[0033] Combined with Figure 2 andFigure 3 The connecting component 3 includes a connecting head 301 vertically provided at the end of the push rod 102, and a connecting hole 302 matching the connecting head 301 is provided at the end of the base rod 201. Refer to Figure 3 At the end of the elastic rod, a connecting hole is also provided, which facilitates the recovery of the device into the guiding tube from either end of the device body by using the implantor after the operation is completed.

[0034] Such as Figure 4 The edge of the protective film 4 corresponding to the notch of the arc-shaped rod is provided with a drawstring cavity 401, a drawstring 402 is arranged in the drawstring cavity 401, and one end of the drawstring 402 is fixedly connected to the end of the elastic rod 202;

[0035] Such as Figure 5 A base rod cavity 203 is arranged in the base rod 201, and the other end of the drawstring 402 extends out of the base rod 201 through the base rod cavity 203. A tooth engaging hole communicating with the base rod cavity 203 is opened at a position of the base rod 201 close to the end, and a tooth engaging 204 perpendicular to the base rod 201 is arranged in the tooth engaging hole; the fixing part of the tooth engaging 204 is fixedly connected to the inner wall of the base rod cavity 203, the movable part of the tooth engaging 204 extends out of the tooth engaging hole, and the end of the drawstring 402 passes through the working part of the tooth engaging and then extends out of the end of the push rod 102.

[0036] Such as Figure 6 And Figure 7 As shown in

[0037] In some other embodiments of the present application, the number of the elastic rods 202 is two and they are symmetrically arranged on both sides of the base rod 201. The base rod 201 is a straight rod, and the ends of the two elastic rods 202 are bent towards the direction of the base rod 201 to form two arc-shaped rods when not stressed; an axially arranged movable groove 205 is opened on the base rod 201, and a pin matching the movable groove 205 is arranged at the end of the arc-shaped rod. Figure 8 And Figure 9 As shown in

[0038] In still some other embodiments of the present application, the number of the elastic rods 202 is two, and the ends of the two elastic rods 202 are hinged by an elastic member; the base rod 201 is connected to one of the elastic members; the base rod 201 is a straight rod, and the two elastic rods 202 form an ellipse when not stressed. Figure 10 As shown in In practical applications of this embodiment, a traction sleeve 6 (or directly a traction cavity is opened on the elastic member) can be provided on the other elastic member of the two elastic rods 202, and the axis of the traction sleeve 6 is located on the extension line of the axis of the base rod 201. In this way, during the operation, a puncture needle can be inserted from the side opposite to the incision of the implantor, and after the puncture needle is inserted into the traction sleeve, it can assist the device body to be disengaged from the implantor, improving the stability of the implantation of the device body; subsequently, during the phacoemulsification operation, the device body is jointly limited by the puncture needle and the implantor arranged opposite to each other at 180 degrees, liberating the hands of the doctor.

[0039] In actual production, in order to reduce the production difficulty, the two elastic rods in this embodiment can also be connected end to end directly to form a closed ring (or an elastic rod that forms a ring when not under force).

[0040] As Figure 11 and Figure 12 shown, in some other embodiments of the present application, the number of elastic rods 202 is eight and they are symmetrically arranged on both sides of the base rod 201. The base rod 201 is a straight rod. When not under force, the elastic rods 202 bend towards both sides of the base rod 201 to form four arc-shaped rods on each side; the arcs of two adjacent arc-shaped rods on the same side of the base rod 201 are different.

[0041] In addition, the protective film 4 of the present application can also be in a mesh shape (not shown in the drawings). The mesh-shaped protective film reduces the requirement for the strength of the protective film material and is more suitable for popularization; the mesh hole diameter of the protective film 4 is less than or equal to 1 mm to prevent larger nuclear masses with a diameter of more than 1 mm from falling into the vitreous cavity.

[0042] In addition, it should be noted that in all the drawings of the present application, the protective film is shown as a flat film-like structure arranged between the elastic rods, so as to play a role in isolating the vitreous body during phacoemulsification surgery and prevent the nuclear mass from sinking; however, in actual applications, the protective film can also be a non-flat mesh bag shape, which can be used to fish out the sunken nuclear mass from the main incision.

[0043] In summary, this is only a preferred embodiment of the present invention, and it does not limit the protection scope of the present invention. All equivalent changes and modifications made according to the scope of the present invention patent and the content of the specification are within the scope covered by the present invention patent.

Claims

1. Compensation and salvage device for posterior capsule rupture after cataract surgery, comprising an inserter (1) and a device body (2), Characterized in that: The inserter (1) includes a guiding tube (101) with an axial cavity inside, a push rod (102) is arranged inside the guiding tube (101), a connecting component (3) is arranged at the distal end of the push rod (102), and the proximal end of the push rod (102) extends out from the proximal end of the guiding tube (101); The device body (2) includes a base rod (201), an arc-shaped elastic rod (202) is arranged at the distal end of the base rod (201), and the proximal end of the base rod (201) is detachably connected to the push rod (102) through the connecting component (3); The number of the elastic rods (202) is one, the base rod (201) and the elastic rod (202) form an arc-shaped rod with a curvature when not stressed, and a protective film (4) is fixedly connected to the inner circle of the arc-shaped rod; A drawstring cavity (401) is arranged at the edge of the protective film (4) corresponding to the notch of the arc-shaped rod, a drawstring (402) is arranged inside the drawstring cavity (401), and one end of the drawstring (402) is fixedly connected to the end of the elastic rod (202) not connected to the base rod (201); a base rod cavity (203) is arranged inside the proximal end of the base rod (201), and the other end of the drawstring (402) extends out of the base rod (201) through the base rod cavity (203); A tooth hole communicating with the base rod cavity (203) is arranged at a position near the proximal end of the base rod (201), and a tooth (204) perpendicular to the base rod (201) is arranged inside the tooth hole; the fixing part of the tooth (204) is fixedly connected to the inner wall of the base rod cavity (203), the movable part of the tooth (204) extends out of the tooth hole, and the end of the drawstring (402) passes through the working part of the tooth and then extends out of the push rod (102).

2. The compensation and salvage device for posterior capsule rupture after cataract surgery according to claim 1, Characterized in that: The connecting component (3) includes a connecting head (301) vertically arranged at the end of the push rod (102), and a connecting hole (302) matching the connecting head (301) is arranged at the end of the base rod (201).

3. The compensation and salvage device for posterior capsule rupture after cataract surgery according to claim 1, Characterized in that: The protective film (4) is reticular, and the diameter of the mesh holes of the protective film (4) is less than or equal to 1 mm.

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