CN209770657U

CN209770657U - Sclera fixer and external member

Info

Publication number: CN209770657U
Application number: CN201920301249.4U
Authority: CN
Inventors: 梁仁隆; 吴艺; 谭仁静
Original assignee: Guangdong No 2 Peoples Hospital
Current assignee: Guangdong No 2 Peoples Hospital
Priority date: 2019-03-08
Filing date: 2019-03-08
Publication date: 2019-12-13
Anticipated expiration: 2029-03-08

Abstract

a sclera fixer and a suite, belonging to the field of medical instruments. The sclera fixer includes: clamping arm, control piece, absorption piece. Two legs of the clamping arm are connected at one end to form a joint part, and are separated from each other at the other end to form a movable end part. The clip arms are operable to actuate the two legs to selectively move the first and second ends of the movable end toward or away from each other. The control member includes a first control body disposed on one of the legs and a second control body disposed on the other of the legs. The detachable suction piece for sucking and fixing the sclera comprises a first suction cup connected to the first end part and a second suction cup connected to the second end part. The first sucker is in gas communication with the first control body through the first gas channel, and the second sucker is in gas communication with the second control body through the second gas channel. The sclera fixer has the characteristics of simple structure and convenient use, and can assist in completing ophthalmic surgery.

Description

sclera fixer and external member

Technical Field

The application relates to the field of medical equipment, in particular to a sclera fixer and a kit.

Background

the sclera is the outermost structure of the eye wall, and because of its smooth, spherical appearance, conventional ophthalmic surgical instruments are difficult to secure directly to the sclera, often indirectly through surgical incisions, conjunctiva, cornea, extraocular muscles, and the like. On the one hand, sometimes the indirect fixation effect is not ideal; on the other hand, potential surrounding tissue damage is caused.

Currently, pre-prepared scleral spur fixation silicone bands and cerclage bands are one of the core surgical steps in scleral cingulum surgery (external surgery) for retinal detachment reduction. Stretching of the extraocular muscles is commonly used clinically to indirectly rotate the eyeball to assist in scleral suturing. The sclera stitching (fixing the silicon pressing belt and the bandage) at the equator and behind the equator of the eyeball generally has the problem of difficult exposure of a stitching area: on the one hand, the risk of causing the intraoperative suture to pierce the eyeball wall is greatly increased; on the other hand, the need to pull the extraocular muscles too much can cause potential injury. There is no non-invasive auxiliary instrument for fixing sclera and assisting scleral suture (especially for retinal detachment surgery).

The information disclosed in this background section is only for enhancement of understanding of the general background of the application and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.

SUMMERY OF THE UTILITY MODEL

based on the deficiencies of the prior art, the present application provides a scleral holder and kit to partially or fully ameliorate, or even solve, the problems of the prior art.

The application is realized as follows:

In a first aspect of the present application, a scleral holder is provided in an example.

The sclera fixer includes:

The clamping arm is provided with two elongated legs, one ends of the two legs are connected to form a combination part, the other ends of the two legs are separated from each other to form movable end parts, and the movable end parts are provided with a first end part positioned at the tail end of one leg and a second end part positioned at the tail end of the other leg;

The clamping arms are operable to brake the two legs to selectively move the first and second ends toward and away from each other;

the control piece comprises a first control body and a second control body, the first control body is arranged on one leg, and the second control body is arranged on the other leg;

A detachable suction member for suction-fixing the sclera, the suction member including a first suction cup connected to the first end portion and operated by the first control body through gas, a second suction cup connected to the second end portion and operated by the second control body through gas;

The first sucker is in gas communication with the first control body through the first gas channel, and the second sucker is in gas communication with the second control body through the second gas channel.

the scleral holder in the example has a forceps-like structure, which facilitates one-handed operation. The clamping, moving and loosening operations can be realized through one-hand operation, and the adsorption piece can be operated through the first control body and the second control body so as to achieve the effect of adsorbing substances, and the adsorbed substances can be released after the purposes are achieved.

For example, the negative pressure adsorption of the sclera fixer is adopted to make the adsorption part adsorbed on the sclera surface of the eyeball, so that the eyeball can move by moving the sclera fixer to meet the operation requirement.

In combination with the first aspect, in some alternative examples of the first possible implementation manner of the first aspect of the present application, the two legs of the clamping arm are expanded and can be driven by the pressing force to bring the first end portion and the second end portion closer to each other.

The clamping arms of the scleral holder are expanded so that the suction cups of the suction member are also spaced apart by a suitable distance. So, can adjust the distance between the sucking disc through control arm lock to be convenient for satisfy the operation needs of appropriate size. In some practical applications, the distance between the clamping arms (whether expanding or contracting) is achieved by rotating the nut, and may not be the amount of force required to clamp the clamping arms.

In combination with the first possible implementation manner of the first aspect, in some alternative examples of the second possible implementation manner of the first aspect of the present application, the two legs are made of an elastic material so that the first end portion and the second end portion, which are brought close to each other by the pressing force, can be moved away from each other when the pressing force is partially or completely removed. The pressing force can be from the operation (rotation) of a limiting member (such as a nut).

The legs of the clip arms are made of an elastic material and thus have an elastic restoring force. Under the action of the elastic restoring force, after the operation and the use of the sclera fixer are finished, the two legs of the clamping arms can be properly reset so as to meet the requirement of other operations.

In combination with the first aspect, in some alternative examples of the third possible implementation manner of the first aspect of the present application, the first control body and the second control body are respectively disposed on two legs opposite and facing away from each other.

The first control body and the second control body are respectively arranged at the outer sides of two legs of the clamping arm, so that the first control body and the second control body are in direct contact with fingers when the sclera fixer is operated by a single hand, and the sucking discs in the adsorbing piece are convenient to operate. Based on the above, the operation and use difficulty of the sclera fixer is lower.

With reference to the first aspect, in some alternative examples of the fourth possible implementation manner of the first aspect of the present application, the first gas passage is provided by a first tube, and the first control body and the first suction pad are respectively connected to both ends of the first tube;

Or, the second gas passage is provided by a second pipe, and the second control body and the second suction cup are respectively connected to both ends of the second pipe.

the channel that utilizes the pipe to provide the air current circulation can reduce the structure complexity of arm lock to a certain extent, correspondingly also avoids the processing of complex structure to can reduce the cost of manufacture and the preparation cycle of sclera, also be favorable to the improvement of durability simultaneously.

In combination with the fourth possible implementation manner of the first aspect, in some optional examples of the fifth possible implementation manner of the first aspect of the present application, each of the two legs is provided with a channel, and the first pipe and the second pipe are respectively and correspondingly arranged in the channels of the two legs.

The first pipe and the second pipe are embedded in the two legs of the clamping arm, so that the influence on the first pipe and the second pipe in the use process can be avoided, and the effect of operating the sucking disc of the adsorption piece through the control body can be normally achieved.

With reference to the fifth possible implementation manner of the first aspect, in some alternative examples of the sixth possible implementation manner of the first aspect of the present application, the first control body is expanded from the first tube and protrudes from the first opening provided to one of the legs;

Alternatively, the second control body is expanded from the second tube and projected from the second opening provided in the other leg thereof.

The control body and the tube are designed into a whole, thereby achieving the effects of simplifying the structure and improving the stability of the sclera fixer.

In combination with the fifth possible implementation manner of the first aspect, in some alternative examples of the sixth possible implementation manner of the first aspect of the present application, the first opening and/or the second opening are both elliptical.

the shape of the opening has a restraining effect on the shape of the control body, and the oval structure has better operation convenience.

In combination with the fifth or sixth possible implementation manner of the first aspect, in some optional examples of the seventh possible implementation manner of the first aspect of the present application, the scleral holder comprises a spacer, the spacers are arranged in the channels of both legs and respectively press the first tube to form the first control body and the second tube to form the first control body.

Due to the existence of the cushion block, when the first pipe and the second pipe pass through the channel where the cushion block is located, the first pipe and the second pipe naturally protrude out of the two legs through the first opening and/or the second opening to form a first control body and a second control body.

The pad can make the body extruded to make the body bulge. The convex portion is supported by the pad block to be more easily deformed when being pressed, so that the suction cup of the suction member is operated by the flow of the gas. Therefore, the arrangement of the cushion block enables the control body to operate the sucker more easily, and the use of the fixer is more convenient.

In a second aspect of the present application, there is provided, in an example, a scleral fixation kit.

The sclera fixing kit comprises a limiting piece and a sclera fixer;

The limiting piece is connected with the two legs of the clamping arm so as to limit the two legs of the clamping arm to a desired position or a plurality of selectable positions.

the limiting part limits the clamping arm of the sclera fixer, so that two legs of the clamping arm are easier to control.

In the implementation process, the sclera fixer provided by the embodiment of the application comprises a clamping arm, a control piece and an adsorption piece. The fixer adsorbs the piece through setting up the control operation in the arm lock to the realization is fixed to the absorption of sclera, and can also brake eyeball in view of the above, so that the normal clear of operation.

Drawings

in order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

Fig. 1 is a schematic structural view illustrating an opened state of a first viewing angle of an iris fixer according to an embodiment of the present invention;

Fig. 2 is a schematic structural view of a closed state at a first viewing angle of an iris fixer according to an embodiment of the present invention;

Fig. 3 is a schematic structural diagram of a second view angle of the iris fixator according to the embodiment of the present invention;

Fig. 4 is a schematic structural view of a first tube in an iris fixator according to an embodiment of the present invention;

Fig. 5 is a schematic structural view of a suction cup in an iris fixer according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram illustrating a relative position between the first tube and the pad in the iris fixator according to an embodiment of the present invention.

Icon: 100-scleral fixation devices; 101-a clamping arm; 1011-binding moiety; 1012-movable end portion; 1013-a first leg; 1014-a second leg; 1021-a first control body; 1022 — a second control body; 103-an adsorption member; 1031-first suction cup; 1032-a second suction cup; 104-a stop; 1041-a stud; 1042-screw cap; 201-a first tube; a 2011-U shaped fork; 202-cushion blocks; 10321-disk portion; 10322-suction section.

Detailed Description

in order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.

It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application.

All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

currently, there is no non-invasive ophthalmic surgical instrument that directly anchors the sclera to assist in scleral suturing during retinal detachment surgery.

In view of the above, the present invention provides a scleral suture fixation forceps to solve the above technical problems. Hereinafter, the scleral suture fixation forceps will be described in the context of the scleral holder and kit.

In general, the scleral holder proposed in the embodiments of the present application is a surgical instrument having a general forceps shape. Mainly, the surgical instrument is mainly used for the retinal detachment external surgery of the retinal surgery. It can be used to achieve non-invasive fixation to the sclera and also to assist in scleral suturing, particularly in scleral cingulum surgery (external surgery) for retinal detachment reduction.

As is well known, tweezers are squeezed to grip a particular object and release the object. As described above, the sclera fixture is tweezers-shaped, and thus, it is obvious that it also has a function of holding and appropriately fixing an unspecified object. Although the sclera fixture has the above function of holding and releasing an object, the sclera fixture can also fix an object by suction (negative pressure suction fixation). In other words, the scleral holder is a multifunctional medical device.

As before, the scleral holder is shaped like a forceps, and thus it similarly has a closed state and an open state. In the application scene of retinal surgery, the sclera can be fixed no matter the fixator is closed or opened; the closed state is to avoid damage to the suction cup.

Basically, the sclera fixer comprises a clamping arm, a control part and an adsorption part. Wherein, the clamping arm forms the main body part of the sclera fixer, and the control part and the adsorption part are respectively connected at the proper areas of the clamping arm. The operator can also operate the adsorbing member through the control member to adsorb and fix the target object (such as sclera) by using the adsorbing member.

The holding function of the scleral holder (releasable) is driven by the holding arms and is achieved by the suction element. Likewise, the suction holding function (releasable) of the scleral holder is manipulated by the control member and is realized by the suction member. The two functions can be applied independently, and of course, can also work in cooperation. For example, the adsorption member is adsorbed on the target object by the operation of the control member, and then the target object is moved by the movement of the clamp arm.

The various parts of the scleral holder of the examples will be described in more detail below with reference to the accompanying drawings.

See fig. 1-6.

First aspect

clip arm 101 is the structural portion of scleral holder 100, which is in the form of a tweezer. In the example, the clamp arm 101 has two legs in an elongated shape, and the two legs are connected at one end to form a joint 1011 and separated from each other at the other end to form a movable end 1012. Structurally, clamp arm 101 is substantially "herringbone" in configuration. The two legs of the clamping arm 101 may be two separate parts provided separately and connected by welding, gluing, or bolting (of course, the connection location is at the joint 1011 described above). Alternatively, the two legs of clamp arm 101 may be formed as two separate pieces from a single member by cutting or the like.

In the grip arm 101 of the above structure, it can be operated to be deformed (changed in state). For ease of explanation, it is noted that: the movable end 1012 has a first end at the distal end of one of the legs (or first leg 1013) and a second end at the distal end of the other of the legs (or second leg 1014). Thus, clamp arm 101 can be operated to brake both legs to selectively move the first and second ends toward or away from each other. Wherein the first end and the second end are close to each other in the closed state of clip arms 101 (and of course in the closed/closed state of scleral holder 100); the first and second ends are spaced apart from each other in the open position of clip arms 101 (and of course in the open/open position of scleral holder 100).

in addition, it should be noted that there are a plurality of open states of clamp arm 101, and can be manually selected to be held or used. That is, the difference in the distance that the first end and the second end are away from each other may constitute different open states of the clamp arm 101. The distance between the two suction cups connected to the legs of the gripper arms 101, which will be mentioned later, is also adjusted accordingly on this basis.

The adjustment between the different open states of the gripper arms 101, and the adjustment and control of the open state and the closed state may also be performed by using appropriate members (or may be performed by combining the aforementioned members with manual control of an operator). Such a component can be provided, for example, in the form of a stop 104 and can be used for actuation.

In the scleral holder 100 proposed based on the embodiments of the present application, the present application also proposes a scleral fixing kit. The sclera fixing kit has the limiting member 104 and the sclera fixing device 100. A stop 104 is connected to both legs of clamp arm 101 to limit the legs of clamp arm 101 to a desired position or positions.

In some examples, the position limiter 104 may be a thumb screw, for example. Which includes a nut 1042 and a stud 1041/bolt. The stud 1041 has one end connected to the first leg 1013 of the terminal and the other end passing through the second leg 1014. The stud 1041 is capable of sliding with respect to the second leg 1014. The nut 1042 has two, one of which is located between the first leg 1013 and the second leg 1014 and the other of which is located at the portion of the stud 1041 that exits the second leg 1014. That is, one nut 1042 is clamped between the first leg 1013 and the second leg 1014, and the second leg 1014 is clamped between the two nuts 1042. The nut 1042 and the stud 1041 are connected by a thread.

Therefore, in scleral holder 100 without limiting element 104, the posture or state adjustment of grip arm 101 may be performed, for example, by manual control of an operator. In the scleral fixing kit, the posture or state of the clamping arm 101 may be adjusted by manual control, or may be adjusted by using the limiting element 104, or the limiting element 104 and the manual control are combined to perform adjustment.

As mentioned above, the clamp arm 101 has two legs. The length and shape of the leg can be freely selected as required, and therefore, the present application does not limit the length and shape. For ease of understanding, the legs are illustratively of a quadrangular prism configuration; alternatively, the legs are elliptical cylinders, or other shapes. The length of the legs is not particularly limited, so as to facilitate use.

The legs can be made of elastic material with certain hardness so as to maintain the shape of the legs and keep proper resilience. For example, the legs may be made of plastic, rubber, or the like, or they may be made of metal, such as titanium alloy or aluminum alloy, for medical use. Thereby, the first and second ends of the two legs, which are brought closer to each other by the pressing force, can be moved away from each other when the pressing force is partially or completely removed. In such an example, the two legs of clamp arm 101 may be flared and capable of being driven by a compressive force to bring the first and second ends closer together.

In other examples, clamp arm 101 may be provided with a counter force acting member to generate a bilateral force on both legs thereof. Such a scheme may be implemented in an example known as suction cup forceps for reverse scleral suture fixation. For example, reference may be made to counter-force lens fixation forceps for ease of understanding.

Second aspect of the invention

The control member includes a first control body 1021 and a second control body 1022, and the first control body 1021 is disposed at one of the legs, and the second control body 1022 is disposed at the other of the legs.

In consideration of the operation, the first control body 1021 and the second control body 1022 are disposed on both legs, respectively, so as to face each other and be away from each other. In other words, when both controls are positioned on the gripping side of the two legs of arm 101 for normal operation of arm 101, the fingers grip the gripping side of the two legs of arm 101. In addition, in the scleral fixing kit provided with the limiting member 104, the first control body 1021 and the second control body 1022 have a proper distance to the limiting member 104 (the nut 1042 and the bolt).

The first control body 1021 and the second control body 1022 can be implemented in various ways, for example, in the form of air bags. Which may be tubular, spherical, etc. Further, the first control body 1021 and the second control body 1022 protrude beyond the two legs of the clamping arm 101, so that the operation and use are convenient.

In the present example, the control member effects suction fixation by manipulating the suction member 103, i.e., by generating a negative pressure. For example, by pressing the control member, the suction cup of the suction member 103 which will be described later in detail is exhausted, and the suction cup is attached to, for example, the sclera so that negative pressure can be generated to suck the sclera. When the suction cup is attached to the sclera, the suction cup releases the sclera by pressing the control member.

Scleral holder 100 has a path for the flow of gas (referred to below in the form of a first gas channel and a second gas channel) that can be selectively opened or closed as needed for the negative pressure to develop. For example, both legs are provided with a hole, and the hole connects the control body and the absorbent member 103. Thus, the control body is attached to one end of the channel and the absorbent member 103 is attached to the other end of the channel.

In other alternatives, the path of flow of the gas may be provided by a separate tube. For example, a first gas passage is provided by the first tube 201 and a second gas passage is provided by the second tube. Wherein, each of the two legs is provided with a channel, and the first pipe 201 and the second pipe are respectively and correspondingly arranged in the channels of the two legs.

Based on this, one suction cup of the first control body 1021 and the suction member 103 is connected to both ends of the first tube 201, respectively, and the other suction cup of the second control body 1022 and the suction member 103 is connected to both ends of the second tube, respectively. Thus, the first control body 1021, the first pipe 201 and the suction cup form one negative pressure device, and the second control body 1022, the second pipe and the suction cup form another negative pressure device.

in the above example, the control body and the pipe body are provided as separate members and connected. In other schemes, the control body and the pipe body are of an integrated structure. As an alternative exemplary scheme, the first control body 1021 is expanded from the first tube 201 and projected from the first opening provided to one of the legs; the second control body 1022 is expanded from the second tube and protrudes from the second opening provided in the other leg thereof. Wherein, the first opening and/or the second opening are oval or round, square and the like.

Further, scleral holder 100 includes a spacer 202 that cooperates with the previously described tube that expands to form the control body. The channels of the two legs are provided with a cushion block 202, and the cushion block presses the first pipe 201 to form a first control body 1021 and presses the second pipe to form the first control body 1021. Since the first control body 1021 is formed by expanding the first tube 201 as described above, the expanded portion protrudes from the first opening from the inside of the passage of the leg. When the first control body 1021 formed by the expansion is pressed to form a negative pressure or eliminate the negative pressure, it can be prevented by the pad 202 from being pressed to be contracted back into the passage of the leg through the first opening. Similarly, the features of the other leg, the second opening, etc. have similar expressions as those described above, and are not described herein again.

Third aspect of the invention

The suction member 103 in the sclera fixing device 100 is a detachable member used for suction-fixing the sclera. Because it is in contact with the sclera of the human eye, it is typically made of a medical grade material, such as silicone.

Suction member 103 includes a plurality of suction cups (or shoes, boots) corresponding to the two legs of clip arm 101. A single suction cup will hold the eye to some extent but not as well as 2 or even more suction cups. Especially in the case of suturing the eyeball wall (sclera), since the eyeball is a spherical structure, and some soft tissues of the orbit and 6 extraocular muscles are connected with the eyeball, the eyeball can still move in a small range when only one point is fixed. For stitching, it is better to secure both sides simultaneously than one side.

Such as the suction member 103, includes a first suction pad 1031 and a second suction pad 1032. Wherein the first suction pad 1031 is connected to the first end portion and is manipulated by the first control body 1021 through gas. The second suction cup 1032 is connected to the second end and is operated by the second control body 1022 through gas.

Further, the first suction pad 1031 is in gas communication with the first control body 1021 through a first gas passage, and the second suction pad 1032 is in gas communication with the second control body 1022 through a second gas passage. As mentioned in the foregoing second aspect: the first gas passages may be provided by passages/orifices provided in the legs (first legs 1013); alternatively, it is provided by the first tube 201. Similarly, a second gas passage may be provided by a passage/orifice provided in the leg (second leg 1014); alternatively, it is provided by a second tube.

In addition, the first and second suction cups 1031, 1032 may be generally provided in the same number, for example, one each. In other examples, the first suction cup 1031 and the second suction cup 1032 are both provided in two or more. Of course, the number of the first suction cups 1031 and the second suction cups 1032 may be different.

In the present example, each of the first suction cup 1031 and the second suction cup 1032 has two. In order to allow all the suction cups to form a negative pressure structure, the leg structure of the clamp arm 101 may be adjusted to have a plurality of portions to which the suction cups can be connected. For example, the distal end of the first leg 1013 is bifurcated (in a generally "U" shaped configuration) and corresponds to each of the two first suction pads 1031. The ends of the second legs 1014 are bifurcated into two parts (roughly "U" shaped configuration) and correspond to two second suction cups 1032, respectively.

Further, the first tube 201 is also bifurcated into two corresponding portions (alternatively referred to as a foot or as a U-shaped fork 2011) and corresponds to a "U" shaped configuration in which the end of the first leg 1013 is bifurcated so as to be connected to two first suction cups 1031, respectively. Similarly, the second tube is also bifurcated into two corresponding portions (alternatively referred to as a foot or as a U-shaped fork 2011) and corresponds to a "U" shaped structure in which the end of the second leg 1014 is bifurcated so as to be connected to two second suction cups 1032, respectively.

Alternatively, the end of the first leg 1013 is not bifurcated, and in order to connect the two first suction pads 1031, the end of the first tube 201 extending out of the first leg 1013 is bifurcated and connected to the two first suction pads 1031, respectively. The second leg 1014 is similarly not described in detail.

In the case of a solution where no first 201, second tube is used for the transfer of air (gas transfer through the holes in the legs), the ends of the legs are bifurcated and directly connected to the suction cups.

to facilitate the implementation of scleral holder 100 in the examples by those skilled in the art, specific forceps examples are set forth below.

1. The tweezers comprise 2 legs, each leg comprises 2 feet, and each foot wears 1 shoe (sucker).

2. Shoe (suction cup): comprises a suction part 10322 and a disk part 10321, and is made of silica gel. The 'disc part' can be tightly attached to the surface radian of the eyeball. The shape of the disk part is similar to that of a straw hat (such as a hat brim with the same width on the whole circumference). The diameter of the disc part is 2mm, the diameter of the suction part 10322 is about 1-1.5 mm, and the suction part 10322 is communicated with a rubber hose in the foot. The size of the suction cup has an effect on the anchoring effect of the eye wall (sclera). The larger the suction cup, the better the fixation effect, but the more scleral area needs to be occupied (the space needed for suturing is affected); the smaller the suction cup, the less the fixation effect, but the more flexible the suturing operation.

3. Foot: the feet are made of metal materials. Each leg has two legs parallel to each other. The two support legs are connected in a U shape, and the two support legs are about 5mm in equal distance. The foot is hollow and is internally provided with a rubber hose. The lower part (one end) of the rubber hose is communicated with the sucker, and the upper part is gathered in the main pipe (positioned in the leg).

4. Leg: the legs are made of metal material. The outside of the leg is the outside of the tweezers (anti-slip lines), and the inside of the leg is the inside of the tweezers. The legs are hollow and the inner walls of the legs are threaded. The legs contain: occupying the lower 2/3 rubber hose in the leg.

the upper part (the other end) of the rubber hose is of a closed structure. The tube body of the rubber hose is designed into a thread and is matched with the inner thread of the leg.

The lower part of the outer side of each leg 2 is provided with a symmetrical vertical oval opening (such as a first opening and a second opening), and the inner surfaces of the corresponding inner sides of the legs are filled with metal substances (in a small soil pile shape) so as to force the rubber hose in the leg to protrude out of the vertical oval opening.

The 2-leg width can be locked with a thumb screw and the 2-shoe (i.e., suction cup) edges are restricted to just touching when the width is narrowest. Thereby, an over-closing of the tweezers 2 legs damaging the suction cup structure is avoided. The limiting mode is as follows: the diameter of the distal cylindrical structure of the screw located inside the leg increases.

the cylindrical structure cannot enter the legs, so that when the legs of the tweezers are clamped by force, the legs cannot lean together to cause damage to the sucker. I.e. avoiding excessive closing of the legs to damage the suction cup structure.

The manner of use of the above forceps can be explained as follows.

The operation mode is as follows:

Step 1, setting the initial size of the opening of the tweezers by using a thumb screw, namely setting the position of the eyeball sclera to be fixed by the sucking disc.

And 2, respectively clamping the thumb and the forefinger at the vertical oval opening area outside the 2 legs of the tweezers, and collapsing the protruding rubber hose (exhausting air).

and 3, vertically sticking the 4 sucking discs of the tweezers on the surface of the sclera of the eyeball. The thumb and forefinger release the rubber hose while holding the forceps. At this time, the inside of the rubber hose becomes negative pressure, so that 4 suction cups are tightly adsorbed on the surface of the sclera of the eyeball.

And 4, respectively moving the thumb and the index finger to the position above the vertical elliptic opening area, and then slightly lifting the forceps by the thumb and the index finger so as to drive the eyeball to rotate and move to a proper angle (including suturing).

Meanwhile, the operator can also apply pressure to the inner sides of the forceps respectively to enable the sclera of the eyeball to be partially and slightly wrinkled so as to facilitate needle insertion and needle withdrawal, and then the raised vertical oval opening area is clamped and pressed again until the forceps are separated from the eyeball, so that suturing is completed.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A scleral holder, comprising:

The clamping arm is provided with two elongated legs, the two legs are connected at one end to form a combined part, the two legs are separated from each other at the other end to form a movable end part, and the movable end part is provided with a first end part positioned at the tail end of one leg and a second end part positioned at the tail end of the other leg;

Said clip arms being operable to brake said two legs to selectively move said first and second ends toward and away from each other;

the control piece comprises a first control body and a second control body, wherein the first control body is arranged on one leg, and the second control body is arranged on the other leg;

the first sucker is in gas communication with the first controller through a first gas passage, and the second sucker is in gas communication with the second controller through a second gas passage.

2. The scleral holder of claim 1, wherein the two legs of the clip arms are flared and are adapted to be urged by a compressive force to move the first and second ends toward each other.

3. A scleral holder as in claim 2, wherein the two legs are made of a resilient material such that the first and second ends that are urged toward each other by the compressive force are able to move away from each other when the compressive force is partially or fully removed.

4. The scleral holder of claim 1, wherein the first control body and the second control body are disposed on the two legs, respectively, opposite and facing away from each other.

5. The scleral holder of claim 1, wherein the first gas passageway is provided by a first tube, and the first control body and the first suction cup are connected to both ends of the first tube, respectively;

Or, the second gas channel is provided by a second pipe, and the second control body and the second suction cup are respectively connected to two ends of the second pipe.

6. A scleral holder as claimed in claim 5, wherein each of the two legs is provided with a channel, and the first tube and the second tube are correspondingly disposed in the channels of the two legs, respectively.

7. A scleral holder as in claim 6, wherein the first control body is expanded from the first tube and protrudes from the first opening disposed in one of the legs;

Alternatively, the second control body is expanded from the second tube and protrudes from the second opening provided in the other leg thereof.

8. A scleral holder as in claim 7, wherein the first opening and/or the second opening are each oval.

9. Scleral holder according to claim 7 or 8, comprising a spacer, wherein the passages of the two legs are each provided with a spacer and press against the first tube to form the first control body and against the second tube to form the first control body, respectively.

10. A scleral immobilization kit, comprising a limiter, a scleral fixator according to any one of claims 1 to 9;

The limiting part is connected with the two legs of the clamping arm so as to limit the two legs of the clamping arm to a desired position or a plurality of selectable positions.