Room corner separator

Abstract

The utility model provides a room corner separator which comprises an operating handle, a first connecting part, a second connecting part and a head part, and the operating handle is of a rod-shaped structure; the first end of the first connecting part is connected with the first end of the operating handle; the second end of the first connecting part is connected with the second connecting part, an included angle alpha is formed between the axis of the second connecting part and the axis of the first connecting part, and the included angle alpha is 145-155 degrees; the head part is of a flat structure, and the thickness e of the head part is 0.25-0.45 mm; the head part is connected with the second end of the second connecting part in the axial direction of the second connecting part, is used for separating room corners and is provided with a reflective surface; the chamber corner separator can be used in a glaucoma operation, the chamber corner separation efficiency is improved, and operation is convenient; the light reflected by the reflective surface can directly enter the microscope and is observed by an operator.

Description

Technical Field

[0001] This application relates to the technical field of medical devices, and particularly to a gonioseparator. Background Art

[0002] Glaucoma is the world's leading irreversible blinding eye disease. Clinically, glaucoma is divided into three major categories: primary, secondary, and congenital, according to factors such as etiology, anterior chamber angle, and tonography.

[0003] The anterior chamber angle is an important path for the drainage of aqueous humor in the eye. For some patients with primary and secondary glaucoma who have anterior chamber angle closure or even adhesion, the reason for the blockage of aqueous humor drainage may mainly lie in mechanical anterior chamber angle closure. With the increasing understanding of goniosynechialysis in the industry, the clinical demand for effective goniosynechialysis devices is becoming more and more urgent. However, anterior chamber gonioseparation not only depends on the surgeon's surgical skills but also requires appropriate gonioseparation instruments. The existing gonioseparators in the prior art still need to be continuously optimized in terms of function, separation efficiency, and reduction of damage to surrounding anterior chamber angle tissues. Utility Model Content

[0004] To solve the above technical problems, this application provides a gonioseparator, including: an operating handle, the operating handle having a rod-shaped structure; a first connecting portion, a first end of the first connecting portion being connected to a first end of the operating handle, and a center line of the first connecting portion coinciding with an axis of the operating handle; a second connecting portion, a first end of the second connecting portion being connected to a second end of the first connecting portion, an axis of the second connecting portion having an included angle α with an axis of the first connecting portion, the included angle α being 145° to 155°; a head, the head being a flat structure, a thickness e of the head being 0.25 mm to 0.45 mm; the head being axially connected to a second end of the second connecting portion along the second connecting portion, the head being used for separating the anterior chamber angle and the head having a reflective surface; wherein, an axial length g of a front projection of the gonioseparator is 110 mm to 130 mm, a sum d of axial lengths of front projections of the first connecting portion, the second connecting portion, and the head is 25 mm to 30 mm, and a sum f of axial lengths of the second connecting portion and the head is 11 mm to 14 mm.

[0005] In some embodiments of this application, the gonioseparator further includes a first transition portion connecting the operating handle and the first connecting portion, the first transition portion being cylindrical, a cross-sectional dimension of the first transition portion being smaller than a cross-sectional dimension of the operating handle, and the cross-sectional dimension of the first transition portion being larger than a cross-sectional dimension of the first connecting portion.

[0006] In some embodiments of the present application, a plurality of first anti-slip grooves are further provided on the operating handle, and the plurality of first anti-slip grooves are adjacent to the first end of the operating handle.

[0007] In some embodiments of the present application, the axis of the second connecting portion and the axis of the head are smooth transition arcs, and the radius r1 of the arc is 20-30 mm; alternatively, the axis of the second connecting portion and the axis of the head are coincident straight lines.

[0008] In some embodiments of the present application, the head includes a trapezoidal transition portion, and the short end of the trapezoidal transition portion is connected to the second connecting portion; a separating portion, the orthographic projection shape of the separating portion is rectangular, the separating portion is connected to the long end of the trapezoidal transition portion, and rounded corners are provided at both ends of the separating portion away from the trapezoidal transition portion; wherein, the width a of the head is 1.8-2.2 mm, the length b of the head is 3-5 mm, the length c of the trapezoidal transition portion is 0.8-1 mm, and the radius r2 of the rounded corner is 1-1.4 mm.

[0009] In some embodiments of the present application, the shape of the head is circular, and the diameter of the head is 1.8-2.2 mm.

[0010] In some embodiments of the present application, the upper surface of the head has a first protrusion, the surface of the first protrusion is a plane, the reflective surface is located on the surface of the first protrusion, and the height h1 of the first protrusion is 0.1-0.2 mm.

[0011] In some embodiments of the present application, the upper surface of the head has a second protrusion, the surface of the second protrusion is a spherical surface, the reflective surface is located on the surface of the second protrusion, and the distance h2 between the vertex of the second protrusion and the upper surface of the head is 0.1-0.2 mm.

[0012] In some embodiments of the present application, a plurality of sawteeth are provided at intervals along the circumferential edge profile of the head, the length of the sawteeth is 0.05-0.15 mm, and the width of the tooth tip of the sawteeth is 0.1-0.3 mm.

[0013] In some embodiments of the present application, the end of the head away from the second connecting portion is bent downward to form a bending portion, and the distance h3 between the end of the bending portion and the lower surface of the head is 0.2-0.5 mm.

[0014] In some embodiments of the present application, the reflective surface is a polished reflective surface formed by polishing the surface of the head, or the reflective surface is a glass mirror surface provided on the head, or the reflective surface is the surface of a reflective film provided on the head.

[0015] In some embodiments of the present application, the gonioseparator further includes a third connecting portion. The first end of the third connecting portion is connected to the second end of the operating handle, and the axis of the third connecting portion coincides with the axis of the operating handle; a puncture knife, which is connected to the second end of the third connecting portion and is used for puncturing an opening in the cornea.

[0016] In some embodiments of the present application, the gonioseparator further includes a second transition portion connecting the operating handle and the third connecting portion. The second transition portion is cylindrical, and the cross-sectional dimension of the second transition portion is smaller than the cross-sectional dimension of the operating handle.

[0017] In some embodiments of the present application, a plurality of second anti-slip grooves are further provided on the operating handle, and the plurality of second anti-slip grooves are adjacent to the second end of the operating handle.

[0018] Beneficial effects of the present application: The present utility model provides a gonioseparator, which includes an operating handle, a first connecting portion, a second connecting portion, and a head. The operating handle has a rod-shaped structure; the first end of the first connecting portion is connected to the first end of the operating handle; the second end of the first connecting portion is connected to the second connecting portion, and there is an included angle α between the axis of the second connecting portion and the axis of the first connecting portion, and the included angle α is 145° to 155°. Within this included angle range, it is more beneficial for goniosynechialysis and operation; the head is a flat structure, and the thickness e of the head is 0.25 mm to 0.45 mm; the head is axially connected to the second end of the second connecting portion along the axis of the second connecting portion, and the head is used for separating the goniosynechialysis and the head has a reflective surface; the axial length of the front projection of the gonioseparator is 110 mm to 130 mm, and the sum of the axial lengths of the front projections of the first connecting portion, the second connecting portion, and the head is 25 mm to 30 mm, and the sum of the axial lengths of the second connecting portion and the head is 11 mm to 14 mm; this gonioseparator can be used in glaucoma surgery to improve the efficiency of goniosynechialysis and facilitate operation; the light reflected by the reflective surface can directly enter the microscope field of view and be observed by the operator. Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to these drawings, where:

[0020] Figure 1A is a perspective view of an embodiment of the gonioseparator of the present utility model;

[0021] Figure 1B is a front view of an embodiment of the gonioseparator of the present utility model;

[0022] Figure 1C is the top view of an embodiment of the corneal angle separator of the present utility model;

[0023] Figure 2 is the side view of the first connecting part, the second connecting part and the head in another embodiment of the corneal angle separator of the present utility model;

[0024] Figure 3A is the three-dimensional view of the first connecting part, the second connecting part and the head in another embodiment of the corneal angle separator of the present utility model;

[0025] Figure 3B is the side view of the first connecting part, the second connecting part and the head in another embodiment of the corneal angle separator of the present utility model;

[0026] Figure 3C is Figure 3B the partial enlarged view of area A in;

[0027] Figure 4 is the partial enlarged view of the head in another embodiment of the corneal angle separator of the present utility model;

[0028] Figure 5A is the three-dimensional view of the first connecting part, the second connecting part and the head in another embodiment of the corneal angle separator of the present utility model;

[0029] Figure 5B is the top view of the first connecting part, the second connecting part and the head in another embodiment of the corneal angle separator of the present utility model;

[0030] Figure 6 is the three-dimensional view of the first connecting part, the second connecting part and the head in another embodiment of the corneal angle separator of the present utility model;

[0031] Figure 7 is the side view of the first connecting part, the second connecting part and the head in another embodiment of the corneal angle separator of the present utility model;

[0032] Figure 8A is the three-dimensional view of the first connecting part, the second connecting part and the head in another embodiment of the corneal angle separator of the present utility model;

[0033] Figure 8B is the side view of the first connecting part, the second connecting part and the head in another embodiment of the corneal angle separator of the present utility model;

[0034] Figure 8C is Figure 8B the partial enlarged view of area B in;

[0035] Figure 9 is the front view of another embodiment of the corneal angle separator of the present utility model. Detailed implementation manners

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present application in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other alternative embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0037] The present application provides a gonioseparator, which can be applied in goniosynechialysis. By separating the gonioscope between the iris and the cornea, aqueous humor can flow out smoothly, thereby reducing intraocular pressure and alleviating glaucoma symptoms. In addition, the head 4 of the gonioseparator has a reflective surface. During the goniosynechialysis process, the light reflected by the reflective surface can directly enter the microscope and be observed by the operator, eliminating the step of observing through a gonioscope and facilitating the observation of the anterior chamber gonioscope during goniosynechialysis.

[0038] As Figures 1A to 1C shown, as an embodiment of the gonioseparator, the gonioseparator includes an operating handle 1, a first connecting portion 2, a second connecting portion 3, and a head 4. Among them, the operating handle 1 has a rod-shaped structure, such as a round rod structure, and the material of the operating handle 1 is a metal material such as a nickel-titanium alloy material or a stainless steel material.

[0039] In this embodiment, the operating handle 1 includes a first handle portion 11 and a second handle portion 12 in the axial direction. The first handle portion 11 is close to the first connecting portion 2, and the cross-sectional dimension of the first handle portion 11 is larger than the cross-sectional dimension of the second handle portion 12.

[0040] In this embodiment, the first connecting portion 2 has a rod-shaped structure. The first end of the first connecting portion 2 is connected to the first end of the operating handle 1, and the second end of the first connecting portion 2 is connected to the second connecting portion 3. The cross-sectional shape of the first end of the first connecting portion 2 is circular, and the cross-sectional shape of the second end is flat. That is, in the direction from the first end to the second end of the first connecting portion 2, the cross-sectional shape of the first connecting portion 2 transitions from circular to flat.

[0041] It Figures 1A to 1C can be seen that the first connecting portion 2 is divided into a cylindrical portion and a flat portion that smoothly transitions from the cylindrical portion in the axial direction. The centerlines of the cylindrical portion and the flat portion coincide with the axis of the operating handle 1.

[0042] In this embodiment, the first end of the second connecting portion 3 is connected to the second end of the first connecting portion 2. There is an included angle α between the axis of the second connecting portion 3 and the axis of the first connecting portion 2. The included angle α is 145° to 155°. The setting of this included angle α can enable the head 4 to enter the eyeball at an angle suitable for the eyeball for goniosynechialysis and facilitate the user to hold the operating handle 1 with the fingers for operation.

[0043] In this embodiment, the head 4 has a flat structure. The head 4 is connected to the second end of the second connecting portion 3 along the axial direction of the second connecting portion 3. The head 4 is used to separate the anterior chamber angle and has a reflective surface, and the reflective surface is located on the upper surface of the head 4; during the separation of the anterior chamber angle, the light reflected by the reflective surface can enter the microscope field of view and be observed by the operator.

[0044] In this embodiment, the reflective surface is formed by polishing the surface of the head 4. For example, the head 4 forms a mirror effect through chemical or mechanical polishing processes, thereby forming the reflective surface. In this embodiment, the surfaces of the head 4 together with the second connecting portion 3 and the first connecting portion 2 are all polished to form smooth surfaces, thereby reducing the friction between the head 4 and the intraocular tissues and preventing scratching of the intraocular tissues.

[0045] As Figure 1C shown, the head 4 includes a trapezoidal transition portion 41 and a separating portion 42. Among them, the short end of the trapezoidal transition portion 41 is connected to the second connecting portion 3, and the long end of the trapezoidal transition portion 41 is connected to the separating portion 42; in this embodiment, the anterior chamber angle between the iris and the cornea is separated by the separating portion 42. The orthographic projection shape of the separating portion 42 is rectangular, and rounded corners are provided at both ends of the separating portion 42 away from the trapezoidal transition portion 41 to avoid the two ends of the separating portion 42 being too sharp.

[0046] In this embodiment, the anterior chamber angle separator further includes a first transition portion 5 connecting the operating handle 1 and the first connecting portion 2. The first transition portion 5 is cylindrical. The cross-sectional dimension of the first transition portion 5 is smaller than the cross-sectional dimension of the operating handle 1, and the cross-sectional dimension of the first transition portion 5 is larger than the cross-sectional dimension of the first connecting portion 2.

[0047] In this embodiment, a plurality of first anti-slip grooves 6 are further provided on the operating handle 1. The plurality of first anti-slip grooves 6 are adjacent to the first end of the operating handle 1. The setting of the first anti-slip grooves 6 can increase the friction of the operating handle 1, have an anti-slip effect, facilitate the operator's fingers to hold the operating handle 1, and improve the stability of the operation.

[0048] In this embodiment, chamfers are made at the edges and connection positions of each component of the anterior chamber angle separator to avoid the edges of the anterior chamber angle separator being too sharp and scratching the intraocular tissues.

[0049] The using method of the anterior chamber angle separator in this embodiment is as follows: The operator pinches the first end of the operating handle 1 with the fingers, inserts the head 4 into the anterior chamber through the main corneal incision of the patient, observes the adhesion condition of the anterior chamber angle through the reflection of the reflective surface. If adhesion appears at the anterior chamber angle of the patient, gently press the root of the patient's iris with the head 4 to fully open the adhesively closed anterior chamber angle. After the anterior chamber angle is opened, withdraw the head 4 from the main corneal incision of the patient. This anterior chamber angle separator can improve the separation efficiency of the anterior chamber angle and is convenient for the operator to use.

[0050] Please refer to Figures 1A to 1C In this embodiment, the axial length g of the front projection of the gonioseparator is 110-130 mm, the sum d of the axial lengths of the front projections of the first connecting portion 2, the second connecting portion 3 and the head portion 4 is 25-30 mm, the axes of the second connecting portion 3 and the head portion 4 are smooth transition arcs, and the radius r1 of the arc is 20-30 mm. The sum f of the axial lengths of the second connecting portion 3 and the head portion 4 is 11-14 mm, that is, the arc length of this arc is 11-14 mm. Setting the second connecting portion 3 and the head portion 4 into an arc shape is more conducive to separating the iris from the cornea.

[0051] In some specific embodiments, the axial length g of the front projection of the gonioseparator may be 110 mm, 120 mm, 125 mm, 130 mm; the sum d of the axial lengths of the front projections of the first connecting portion 2, the second connecting portion 3 and the head portion 4 may be 25 mm, 28 mm, 30 mm; the radius r1 of the arc is 20 mm, 25 mm, 30 mm; the arc length of the arc is 11 mm, 12 mm, 13 mm.

[0052] In this embodiment, the diameter of the first handle portion 11 is 4-6 mm, the diameter of the second handle portion 12 is 3-5 mm, and the diameter of the cylindrical portion of the first connecting portion 2 is 2-3 mm; in some specific embodiments, the diameter of the first handle portion 11 in the operating handle 1 is 5.4 mm, the diameter of the second handle portion 12 is 4.4 mm, the diameter of the first transition portion 5 is 4 mm, and the diameter of the cylindrical portion of the first connecting portion 2 is 3 mm.

[0053] In this embodiment, the thickness e of the head portion 4 is 0.25-0.45 mm, the width a of the head portion 4 is 1.8-2.2 mm, the length b of the head portion 4 is 3-5 mm, the length c of the trapezoidal transition portion 41 is 0.8-1 mm, and the radius r2 of the rounded corner is 1-1.4 mm. In some embodiments, the thickness e of the head portion 4 is 0.3 mm, the width a of the head portion 4 is 2 mm, the length b of the head portion 4 is 4 mm, the length c of the trapezoidal transition portion 41 is 1 mm, and the radius r2 of the rounded corner is 1 mm.

[0054] In some embodiments, the reflective surface is a glass mirror surface provided on the head portion 4, such as a plexiglass mirror surface; in some embodiments, the reflective surface is the surface of a reflective film provided on the head portion 4.

[0055] In some embodiments, the axis of the first connecting portion 2 coincides with the axis of the operating handle 1.

[0056] In some embodiments, the gonioseparator further includes a first protective cap. In the non-use state, the protective cap is sleeved on the first connecting portion 2, the second connecting portion 3 and the head portion 4.

[0057] Further, as Figure 2 shown, different from the above Figures 1A to 1C embodiment shown, in this embodiment, the axes of the second connecting portion 3 and the head portion 4 are coincident straight lines, and the sum f of the axial lengths of the second connecting portion 3 and the head portion 4 is 11 to 14 mm.

[0058] As Figures 3A to 3C shown, different from the above Figures 1A to 1C embodiment shown, the upper surface of the head portion 4 in this embodiment further has a second protrusion 8, the surface of the second protrusion 8 is a spherical surface, and the reflecting surface is located on the surface of the second protrusion 8. Other conditions of the anterior chamber angle, such as foreign bodies, etc., can also be observed through this spherical reflecting surface; the distance h2 between the vertex of the second protrusion 8 and the upper surface of the head portion 4 is 0.1 to 0.2 mm.

[0059] As Figure 4 shown, the difference between this embodiment and the above Figure 2 embodiment shown is that the upper surface of the head portion 4 has a first protrusion 7, the surface of the first protrusion 7 is a circular plane, the reflecting surface is located on the surface of the first protrusion 7, and the height h1 of the first protrusion 7 is 0.1 to 0.2 mm.

[0060] As Figure 5A and Figure 5B shown, different from the above Figures 1A to 1C embodiment shown, in this embodiment, a plurality of saw teeth 9 are arranged at intervals along the circumferential direction of the edge contour of the head portion 4. Through these saw teeth 9, it is more beneficial to separate the anterior chamber angle between the iris and the cornea, improve the separation efficiency, and reduce the separation difficulty; the length of the saw teeth 9 is 0.05 to 0.15 mm, the width of the tooth tip of the saw teeth 9 is 0.1 to 0.3 mm, and the edges of the saw teeth 9 are all rounded to prevent being too sharp.

[0061] As Figure 6 shown, different from the above Figures 1A to 1C embodiment shown, in this embodiment, the shape of the head portion 4 is circular, and the diameter of the head portion 4 is 1.8 to 2.2 mm.

[0062] As Figure 7 shown, different from Figure 6 the embodiment shown, in this embodiment, the upper surface of the head portion 4 has a second protrusion 8, the surface of the second protrusion 8 is a spherical surface, the bottom diameter of the second protrusion 8 is the same as the diameter of the head portion 4, that is, the bottom of the second protrusion 8 covers the upper surface of the head portion 4, the reflecting surface is located on the surface of the second protrusion 8, and other conditions of the anterior chamber angle, such as foreign bodies, etc., can also be observed through this spherical reflecting surface; the distance h2 between the vertex of the second protrusion 8 and the upper surface of the head portion 4 is 0.1 to 0.2 mm.

[0063] As Figures 8A to 8C shown, different from the aboveFigures 1A to 1C In the illustrated embodiment, in this embodiment, the end of the head 4 away from the second connecting portion 3 is bent downward to form a bent portion 10. Providing the downwardly bent bent portion 10 can enable the end of the head 4 to fit the corneal angle, facilitating contact with the root of the iris and being more conducive to separating the corneal angle adhesion; the distance h3 between the end of the bent portion 10 and the lower surface of the head 4 is 0.2 to 0.5 mm.

[0064] As Figure 9 As shown, different from the above-mentioned other embodiments, in this embodiment, the corneal angle separator further includes a third connecting portion 13 and a puncture knife 14. The third connecting portion 13 is rod-shaped. The first end of the third connecting portion 13 is connected to the second end of the operating handle 1, and the second end of the third connecting portion 13 is connected to the puncture knife 14, and the axis of the third connecting portion 13 coincides with the axis of the operating handle 1; the puncture knife 14 is used for making a puncture opening in the cornea; the corneal angle separator further includes a second protective cap. In the non-use state of the corneal angle separator in this embodiment, the second protective cap is sleeved on the puncture knife 14.

[0065] In this embodiment, the corneal angle separator further includes a second transition portion 15 connecting the operating handle 1 and the third connecting portion 13. The second transition portion 15 is cylindrical, and the cross-sectional dimension of the second transition portion 15 is smaller than the cross-sectional dimension of the operating handle 1; a plurality of second anti-slip grooves 16 are further provided on the operating handle 1, and the plurality of second anti-slip grooves 16 are adjacent to the second end of the operating handle 1. The provision of the second anti-slip grooves 16 can increase the friction of the operating handle 1, have an anti-slip effect, facilitate the operator's fingers to hold the operating handle 1, and improve the stability of the operation.

[0066] The usage method of the corneal angle separator in this embodiment is as follows: The operator's fingers pinch the second end of the operating handle 1, and make a corneal incision at the patient's cornea through the puncture knife 14; reverse the operating handle 1, the operator's fingers pinch the first end of the operating handle 1, insert the head 4 into the anterior chamber from the patient's corneal incision, observe the corneal angle adhesion condition through the reflection of the reflective surface. If there is adhesion at the patient's corneal angle, use the head 4 to gently press the root of the patient's iris to fully open the adhesively closed corneal angle. After the corneal angle is opened, extend the head 4 out of the patient's corneal incision. This corneal angle separator can improve the separation efficiency of the corneal angle and is convenient for the operator to use.

[0067] Finally, it should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present application, then such directional indications are only used to explain the relative positional relationship and movement conditions between components in a certain specific posture (as shown in the drawings). If this specific posture changes, then the directional indications will also change accordingly.

[0068] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, such descriptions of "first", "second", etc. are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first", "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments may be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present application.

[0069] The above are only the implementation manners of the present application and do not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present application, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present application.

Claims

1. A chamber angle separator, characterized in that: include: An operating handle, wherein the operating handle is a rod-shaped structure; A first connection portion, wherein a first end of the first connection portion is connected to a first end of the operating handle, and a center line of the first connection portion coincides with an axis line of the operating handle; A second connection portion, wherein a first end of the second connection portion is connected to a second end of the first connection portion, an axis of the second connection portion and an axis of the first connection portion form an angle α, and the angle α is 145-155°; A head, the head is a flat structure, the thickness e of the head is 0.25-0.45 mm; the head is connected to the second end of the second connecting portion along the axial direction of the second connecting portion, the head is used to separate the chamber angle and the head has a reflective surface; Among them, the axial length g of the orthographic projection of the angle separator is 110~130mm, the sum d of the axial lengths of the orthographic projections of the first connecting part, the second connecting part and the head is 25~30mm, and the sum f of the axial lengths of the second connecting part and the head is 11~14mm.

2. The angle separator according to claim 1, characterized in that The chamber angle separator also includes a first transition portion connecting the operating handle and the first connecting portion, the first transition portion is cylindrical, the cross-sectional size of the first transition portion is smaller than the cross-sectional size of the operating handle, and the cross-sectional size of the first transition portion is larger than the cross-sectional size of the first connecting portion.

3. The angle separator according to claim 1, characterized in that: The operating handle is also provided with a plurality of first anti-slip grooves, and the plurality of first anti-slip grooves are adjacent to the first end of the operating handle.

4. The angle separator according to claim 1, characterized in that: The axis of the second connection portion and the axis of the head are smoothly transitioned arcs, and the radius r1 of the arc is 20-30 mm; or, the axis of the second connection portion and the axis of the head are coincident straight lines.

5. The angle separator according to claim 1, characterized in that: The header includes: A trapezoidal transition portion, wherein a short end of the trapezoidal transition portion is connected to the second connecting portion; A separation portion, the orthographic projection of which is rectangular, the separation portion is connected to the long end of the trapezoidal transition portion, and the two ends of the separation portion away from the trapezoidal transition portion are provided with rounded corners; The width a of the head is 1.8-2.2 mm, the length b of the head is 3-5 mm, the length c of the trapezoidal transition portion is 0.8-1 mm, and the radius r2 of the fillet is 1-1.4 mm. Alternatively, the shape of the head is circular, and the diameter of the head is 1.8-2.2 mm.

6. The angle separator according to claim 5, characterized in that: The upper surface of the head has a first protrusion, the surface of the first protrusion is a plane, the reflective surface is located on the surface of the first protrusion, and the height h1 of the first protrusion is 0.1-0.2 mm.

7. The angle separator according to claim 6, characterized in that: The upper surface of the head has a second protrusion, the surface of the second protrusion is a spherical surface, the reflective surface is located on the surface of the second protrusion, and the distance h2 between the vertex of the second protrusion and the upper surface of the head is 0.1-0.2 mm.

8. The angle separator according to claim 1, characterized in that: The edge profile of the head is provided with a plurality of saw teeth at intervals along the circumferential direction, the length of the saw teeth is 0.05-0.15 mm, and the width of the tooth tip of the saw teeth is 0.1-0.3 mm.

9. The angle separator according to claim 1, characterized in that: The end of the head away from the second connection portion is bent downward to form a bent portion, and a distance h3 between the end of the bent portion and the lower surface of the head is 0.2-0.5 mm.

10. The angle separator according to any one of claims 1 to 9, characterized in that: The reflective surface is a polished reflective surface formed by polishing the surface of the head, or the reflective surface is a glass mirror surface arranged on the head, or the reflective surface is a surface of a reflective film arranged on the head.

11. The angle separator according to any one of claims 1 to 9, characterized in that: The angle separator also includes: a third connecting portion, wherein a first end of the third connecting portion is connected to a second end of the operating handle, and an axis of the third connecting portion coincides with an axis of the operating handle; A puncture knife is connected to the second end of the third connecting part and is used for puncturing an opening in the cornea.

12. The angle separator according to claim 11, characterized in that: The chamber angle separator also includes a second transition portion connecting the operating handle and the third connecting portion, the second transition portion is cylindrical, and the cross-sectional size of the second transition portion is smaller than the cross-sectional size of the operating handle.

13. The angle separator according to claim 12, characterized in that: The operating handle is also provided with a plurality of second anti-slip grooves, and the plurality of second anti-slip grooves are adjacent to the second end of the operating handle.

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