CN113456133B - Eyelid retractor - Google Patents

Abstract

The invention relates to the technical field of medical instruments, and particularly discloses an eyelid retractor which comprises a spring end part and two side arms extending from the spring end part, wherein the tail end of one side arm is provided with an upper eyelid retractor for retracting an upper eyelid, and the tail end of the other side arm is provided with a lower eyelid retractor for retracting a lower eyelid; the upper eyelid opening hook and the lower eyelid opening hook are both provided with rotating shafts, a clamping strip is connected between the two rotating shafts, the number of the clamping strips is two, the upper part and the lower part of each clamping strip are respectively provided with a clamping block in a sliding manner, each clamping block is provided with a through hole, the two clamping strips respectively penetrate through the through holes, the two clamping blocks are used for enabling the two clamping strips to be attached when being close to each other, and the two clamping blocks are used for enabling the two clamping strips to be separated when being far away from each other; through the arrangement, a main surgeon can finish pterygium resection operation by one person without the assistance of an assistant.

Description

Eyelid retractor

Technical Field

The invention relates to the technical field of medical instruments, in particular to an eyelid retractor.

Background

Referring to fig. 4 and 5, the pterygium 200 is a protruded mass of the bulbar conjunctiva 100, and is divided into three parts between the bulbar conjunctiva 100 and the cornea 300, and is a tip of the pterygium, called a head, which is long on the eyeball; the part which is expanded backwards in a fan shape and slightly raised is called a neck part positioned at the junction of the black and white eyeball and is extended to the large part of the surface of the white eyeball, namely a body part. Eyes are exposed to smoke, sand and sunlight for a long time and are stimulated by cold and heat, connective tissues of conjunctiva denaturalize and proliferate, hypertrophic bulbar conjunctiva and subconjunctival tissues invade from the bulbar conjunctiva to the surface of the cornea to form pterygium, and the pterygium which is a great amount of invasion to the cornea does not need to be operated for patients with light symptoms, influences the vision of patients and needs to be removed by the operation.

The conventional pterygium resection generally includes the following steps: (1) cutting on the cornea along the pterygium head; (2) performing superficial corneal dissection including pterygium; (3) separating conjunctiva from diseased tissue; (4) cutting out pterygium head, neck and part of body; (5) The limbus of the bulbar conjunctival incision is fixed to the superficial sclera. In step (3), when the primary scalpel separates the conjunctiva from the diseased tissue, the conjunctiva is thin and the stress changes to cause conjunctiva rolling, so that the primary scalpel needs to clamp and straighten the conjunctiva by an assistant to prevent conjunctiva rolling.

It is seen that improvements and enhancements to the prior art are needed.

Disclosure of Invention

In view of the defects of the prior art, the invention aims to provide an eyelid retractor, which aims to solve the problem that a main surgeon in the conventional pterygium resection operation needs assistance of an assistant and cannot operate by one person.

In order to achieve the purpose, the invention adopts the following technical scheme:

an eyelid retractor comprises a spring end part and two side arms extending from the spring end part, wherein the tail end of one side arm is provided with an upper eyelid retractor for opening an upper eyelid, and the tail end of the other side arm is provided with a lower eyelid retractor for opening a lower eyelid; go up the eyelid retractor hook with all be provided with the axis of rotation on the eyelid retractor hook down, two be connected with the holding strip between the axis of rotation, the holding strip sets up to two, two the upper portion and the lower part of holding strip slide respectively and are provided with a clamp splice, each all be provided with the through-hole in the clamp splice, two the holding strip passes respectively the through-hole, two be used for making two when the clamp splice is close to each other the clamp splice laminating, two be used for making two when keeping away from each other the clamp splice separation.

The eyelid retractor is characterized in that the number of the rotating shafts on the upper eyelid opening hook is two, and the two rotating shafts are respectively arranged on the left side and the right side of the upper eyelid opening hook; the two rotating shafts are respectively arranged on the left side and the right side of the lower eyelid opening hook, and the connecting lines of the four rotating shafts form a rectangle; mounting holes are formed in the positions, corresponding to the rotating shafts, of the upper eyelid opening hook and the lower eyelid opening hook, the free end of each rotating shaft is provided with a connecting mechanism, and the rotating shafts are rotatably connected with the connecting mechanisms; each connecting mechanism is detachably arranged in the corresponding mounting hole.

Each connecting mechanism comprises a connecting block and a clamping block; a groove is formed in the connecting block, and the rotating shaft is rotatably arranged in the groove; the right side wall of the connecting block is connected with the clamping block, and when the clamping block is arranged in the corresponding mounting hole, the right side wall of the connecting block is abutted against the side wall of the upper eyelid opening hook or the lower eyelid opening hook.

The eyelid retractor, wherein, be provided with more than two archs on the inner wall of connecting block, be provided with on the periphery wall of axis of rotation with protruding looks adaptation's ring channel, each the arch all sets up in the ring channel.

The eyelid retractor is characterized in that the clamping blocks comprise a left clamping block and a right clamping block connected with the right side wall of the left clamping block, the diameter of the left clamping block is gradually increased from left to right, the right clamping block is of a cylindrical structure, and the diameter of the rightmost end section of the left clamping block is equal to that of the right clamping block; the shape of the mounting hole is matched with the shapes of the left clamping block and the right clamping block.

The eyelid retractor, wherein, left side fixture block is the left fixture block of silica gel or the left fixture block of rubber, right side fixture block is the right fixture block of silica gel or the right fixture block of rubber.

The eyelid retractor is characterized in that the left clamping block and the right clamping block are of an integrated structure.

One end of each of the two holding strips penetrates through the side wall of the same rotating shaft, and the parts of the two holding strips extending out of the side wall of the rotating shaft are fixed through fixing pieces.

The eyelid retractor, wherein, two holding strips are hard silica gel holding strips or hard rubber holding strips.

The eyelid retractor is characterized in that the middle parts of the two side arms are provided with supporting parts used for contacting with fingers.

Has the beneficial effects that:

the invention provides an eyelid retractor, which is characterized in that an upper eyelid retractor for opening an upper eyelid, a lower eyelid retractor for opening a lower eyelid and a spring end part for providing elasticity are arranged, so that the eyeball visual field of a patient is exposed; through setting up axis of rotation, two holding slips and two clamp splices on last eyelid hook and the eyelid hook down respectively, with the conjunctiva centre gripping when making the holding slip laminating, loosen the centre gripping to the conjunctiva when making the holding slip separation, through above-mentioned setting, make the main sword doctor can alone accomplish pterygium excision operation, need not assistant's assistance.

Drawings

Fig. 1 is a schematic structural diagram of the eyelid retractor provided by the invention.

Fig. 2 is a schematic structural diagram of the holding strip, the holding block, the rotating shaft and the connecting mechanism.

Fig. 3 is a cross-sectional view of fig. 2.

Figure 4 is a diagram of the use state of the eyelid retractor.

Fig. 5 is a cross-sectional view of an eye.

Description of the main element symbols: 1-spring end, 2-side arm, 3-upper eyelid opening hook, 31-mounting hole, 4-lower eyelid opening hook, 5-rotating shaft, 51-annular groove, 6-clamping strip, 7-clamping block, 71-through hole, 8-connecting mechanism, 81-connecting block, 811-groove, 812-bulge, 82-clamping block, 821-left clamping block, 822-right clamping block, 9-supporting part, 100-conjunctiva, 200-pterygium and 300-cornea.

Detailed Description

The present invention provides an eyelid retractor, which is described in detail below with reference to the accompanying drawings and examples, in order to make the objects, technical solutions and effects of the present invention clearer and clearer. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the scope of the invention.

Referring to fig. 1-4, the present invention provides an eyelid retractor, which includes a spring end 1, two side arms 2 extending from the spring end 1, wherein an upper eyelid retractor 3 for retracting an upper eyelid is disposed at a terminal of one of the side arms 2, and a lower eyelid retractor 4 for retracting a lower eyelid is disposed at a terminal of the other side arm 2; go up the eyelid hook 3 with all be provided with axis of rotation 5 on the eyelid hook 4 down, two be connected with the holding strip 6 between the axis of rotation 5, the holding strip 6 sets up to two, two the upper portion and the lower part of holding strip 6 slide respectively and are provided with a clamp splice 7, each all be provided with through-hole 71 in the clamp splice 7, two the holding strip 6 passes respectively through-hole 71, two be used for making two when clamp splice 7 is close to each other the laminating of holding strip 6, two be used for making two when clamp splice 7 is kept away from each other the separation of holding strip 6.

Before carrying out the operation, compression spring tip 1, make upper eyelid hook 3 and lower eyelid hook 4 be close to each other, with upper eyelid hook 3 hook patient's upper eyelid, with lower eyelid hook 4 hook patient's lower eyelid, then loosen the compression to spring tip 1, under the resilience force effect of spring tip 1, open patient's upper eyelid and lower eyelid, expose patient's eyeball's field of vision, in the embodiment, prop open patient's eyelid after, two holding strip 6 are the arc, holding strip 6 has certain hardness promptly, can not soft collapse. Referring to fig. 4, the pterygium 200 generally grows on the left or right side of the eyeball, and less grows above or below the eyeball, so that the two rotation shafts 5 are disposed up and down, after the conjunctiva 100 is separated from the diseased tissue in the step (3), the two rotation shafts 5 are rotated to dispose the two gibs 6 up and down, respectively, then the conjunctiva 100 is placed between the two gibs 6, the two gibs 7 are respectively pushed toward the conjunctiva 100, the two gibs 6 are tightened in the process of gradually approaching, thereby clamping the conjunctiva 100, after the above operation is completed, the doctor can continue the operation of the step (4), after the pterygium 200 is removed, the two gibs 7 are respectively pushed away from the conjunctiva 100, and the two gibs 6 are separated in the process of gradually departing, thereby loosening the conjunctiva 100, and the doctor can perform the operation of the step (5). Through the arrangement, a main surgeon can finish pterygium resection operation by one person without the assistance of an assistant.

Referring to fig. 1 and 4, further, two rotating shafts 5 are provided on the upper eyelid opening hook 3, and the two rotating shafts 5 are respectively provided on the left side and the right side of the upper eyelid opening hook 3; two rotating shafts 5 are arranged on the lower eyelid opening hook 4, the two rotating shafts 5 are respectively arranged on the left side and the right side of the lower eyelid opening hook 4, and the connecting lines of the four rotating shafts 5 form a rectangle; mounting holes 31 are formed in the positions, corresponding to the rotating shafts 5, of the upper eyelid opening hook 3 and the lower eyelid opening hook 4, the free end of each rotating shaft 5 is provided with a connecting mechanism 8, and the rotating shafts 5 are rotatably connected with the connecting mechanisms 8; each of the connecting mechanisms 8 is detachably disposed in the corresponding mounting hole 31. The doctor of the main surgeon can separate or connect the left or right connecting mechanism 8 from the mounting hole 31 according to the growing position of the pterygium 200 of the patient, and can clamp the conjunctiva 100 on the pterygium 200 on the left side and clamp the conjunctiva 100 on the pterygium 200 on the right side. The specific operation is as follows: when the pterygium 200 of the patient grows on the left side of the eyeball, the two connecting mechanisms 8 are respectively connected with the two mounting holes 31 positioned on the left side, so that the two holding strips 6 are positioned on the left side of the eyeball; when the pterygium 200 of the patient grows on the right side of the eyeball, the two connecting mechanisms 8 are connected to the two mounting holes 31 on the right side, respectively, so that the two clip strips 6 are positioned on the right side of the eyeball; when the pterygium 200 of the patient grows above the eyeball, the two connecting mechanisms 8 are respectively connected with the two mounting holes 31 on the upper eyelid opening hook 3, so that the two holding strips 6 are positioned above the eyeball; when the pterygium 200 of the patient grows below the eyeball, the two connecting mechanisms 8 are connected to the two mounting holes 31 of the lower eyelid hook 4, respectively, so that the two clip strips 6 are positioned below the eyeball. By the above arrangement, the positions of the two clip strips 6 can be adjusted according to the growing position of the pterygium 200 of the patient, thereby making the eyelid retractor more practical.

Referring to fig. 2 and fig. 3, further, each of the connecting mechanisms 8 includes a connecting block 81 and a latch 82; a groove 811 is formed on the connecting block 81, and the rotating shaft 5 is rotatably arranged in the groove 811; the right side wall of the connecting block 81 is connected with the fixture block 82, and when the fixture block 82 is arranged in the corresponding mounting hole 31, the right side wall of the connecting block 81 is abutted against the side wall of the upper eyelid opening hook 3 or the lower eyelid opening hook 4. During actual use, the fixture block 82 is plugged into the mounting hole 31 to be mounted, and the connecting block 81 plays a role in blocking, so that the fixture block 82 is prevented from being inserted too deeply; when the fixing member is removed, the rotating shaft 5 or the connecting block 81 is held by hand, and then the latch 82 is pulled out of the mounting hole 31.

Referring to fig. 3, further, more than two protrusions 812 are disposed on the inner wall of the connecting block 81, an annular groove 51 adapted to the protrusions 812 is disposed on the outer circumferential wall of the rotating shaft 5, and each of the protrusions 812 is disposed in the annular groove 51. In the above arrangement, the protrusion 812 is engaged with the annular groove 51, and when the rotating shaft is rotated, the protrusion 812 moves circularly in the annular groove 51. In this embodiment, the annular groove 51 should be attached to the outer wall of the protrusion 812, so that the rotation resistance is increased, that is, a certain force is required to rotate the rotating shaft, and the position of the holding strip 6 can be relatively fixed due to the light weight of the holding strip 6 and the conjunctiva 100.

Referring to fig. 3, further, the fastening block 82 includes a left fastening block 821 and a right fastening block 822 connected to a right side wall of the left fastening block 821, a diameter of the left fastening block 821 is gradually increased from left to right, the right fastening block 822 has a cylindrical structure, and a diameter of a cross section of a rightmost end of the left fastening block 821 is equal to a diameter of the right fastening block 822; the shape of the mounting hole 31 is matched with the shapes of the left latch 821 and the right latch 822. That is, the diameter of the mounting hole 31 gradually increases from left to right, and then the diameter does not change, and it can be seen from the drawing that the outer wall of the left latch 821 has a certain radian, and the diameter of the right latch 822 is greater than or equal to the diameter of the left latch 821, so that in actual use, the right latch 822 needs to be slightly forced to be plugged into the mounting hole 31 with a smaller aperture or slightly forced to be pulled out of the mounting hole 31 with a smaller aperture, thereby realizing connection or separation of the latch 82 and the mounting hole 31. It should be noted here that the curvature of the left latch 821 should not be too large, so as to avoid the aperture of the mounting hole 31 being too small to allow the right latch 822 to enter.

Further, the left fixture block 821 is a silica gel left fixture block or a rubber left fixture block, and the right fixture block 822 is a silica gel right fixture block or a rubber right fixture block. The left fixture block 821 and the right fixture block 822 made of the materials have certain deformation capacity and can enter the mounting hole 31; and the friction with the inner wall of the upper eyelid opening hook 3 and the inner wall of the lower eyelid opening hook 4 which are made of metal materials is large, so that the fixture block 82 can be effectively prevented from rotating, and the connecting block 81 connected with the fixture block 82 is prevented from driving the rotating shaft 5 to displace.

Further, the left latch 821 and the right latch 822 are of an integrated structure. Through the arrangement, the whole rigidity of the fixture block 82 is better, the service life of the fixture block 82 is prolonged, and the situation that the right fixture block 822 is still in the mounting hole 31 due to the fact that the joint of the left fixture block 821 and the right fixture block 822 is broken is avoided, so that the eyelid retractor cannot be used.

Referring to fig. 2 and 3, further, one end of each of the two gibs 6 respectively penetrates through a side wall of the same rotating shaft 5, and portions of the two gibs 6 extending out of the side wall of the rotating shaft 5 are fixed by a fixing member (not shown). Specifically, the fixing piece can be a clip, a sealing ring with large friction force and the like, and can be detachably connected with the holding strip 6, and parts for fixing the holding strip 6 can be arranged into the fixing piece. The size of the conjunctiva 100 incised in step (1) is different due to the difference in size of the pterygium 200, and the length of the two gibs 6, that is, the radian of the two gibs 6, is adjusted by the above arrangement, thereby accommodating the clamping of the conjunctiva 100 of different lengths.

In one embodiment, the two holding strips 6 are both hard silica gel holding strips or hard rubber holding strips. The holding strips 6 have certain supporting force, do not collapse like a rope, can form a certain radian, ensure that the two holding strips 6 are tightly attached when the clamping blocks 7 are close to each other, and prevent the thinner conjunctiva 100 from sliding off from a gap due to the fact that the holding strips 6 are not attached; moreover, the holding strip 6 made of the material can not scratch the conjunctiva 100.

In another embodiment, both of the holding strips 6 are steel wire holding strips. The steel wire is smooth surperficial thin steel wire to can support and form the arc and have certain deformability as the standard. It should be noted here that the deformation of the steel wire after bending is difficult to repair, which reduces the degree of adhesion of the two holding strips 6, thereby reducing the holding effect on the conjunctiva 100, and therefore, the steel wire should be prevented from being bent in practical use.

Referring to fig. 1 and 4, further, a support portion 9 for contacting with a finger is disposed at a middle portion of each of the two side arms 2. When a finger directly contacts the side arm 2, the side arm 2 is thin, so that when the side arm 2 is pressed, the finger is likely to feel painful due to a small contact area, and the support part 9 increases the contact area with the finger to prevent a mark from being printed on the finger.

In summary, the upper eyelid retractor 3 for opening the upper eyelid, the lower eyelid retractor 4 for opening the lower eyelid, and the spring end 1 for providing elasticity are provided, so that the eyeball visual field of the patient is exposed; through setting up axis of rotation 5, two holding strip 6 and two clamp splice 7 on last eyelid hook 3 and lower eyelid hook 4 respectively, when making holding strip 6 paste with conjunctiva 100 centre gripping, loosen the centre gripping to conjunctiva 100 when making holding strip 6 separate, through above-mentioned setting, make the main sword doctor can alone accomplish pterygium excision operation, need not the assistance of assistant. Through setting up two mounting holes 31 on last eyelid opening hook 3, set up two mounting holes 31 on eyelid opening hook 4 down, cooperate with coupling mechanism 8, realize that the position of the position adjustment holding strip 6 of pterygium of patient can be according to the position adjustment holding strip 6 of the patient, thereby make the practicality of eyelid opener is stronger. By providing the protrusion 812 and the annular groove 51, the relative rotation of the rotating shaft 5 and the connecting block 81 is achieved. By defining the shapes of the left latch 821, the right latch 822, and the mounting hole 31, it is ensured that the latch 82 can be detachably disposed in the mounting hole 31. The holding strips 6 penetrating through the side walls of the rotating shaft 5 are arranged and matched with the fixing pieces, so that the lengths of the two holding strips 6 can be adjusted, and the holding of the conjunctiva 100 with different lengths can be adapted. The support part 9 is arranged for enlarging the contact area of the support part 9 and fingers, so that the two side arms 2 are more easily compressed.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations or positional relationships based on those shown in the drawings, merely for convenience of description and simplification of the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other suitable relationship. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

It should be understood that equivalents and modifications to the disclosed embodiments and inventive concepts may occur to persons skilled in the art, and all such modifications and/or alterations are intended to fall within the scope of the present invention.

Claims (10)

1. An eyelid retractor comprises a spring end part and two side arms extending from the spring end part, wherein the tail end of one side arm is provided with an upper eyelid retractor for opening an upper eyelid, and the tail end of the other side arm is provided with a lower eyelid retractor for opening a lower eyelid; the eyelid retractor is characterized in that rotating shafts are arranged on the upper eyelid opening hook and the lower eyelid opening hook, clamping strips are connected between the two rotating shafts, the number of the clamping strips is two, the upper parts and the lower parts of the two clamping strips are respectively provided with one clamping block in a sliding manner, each clamping block is provided with a through hole, the two clamping strips respectively penetrate through the through holes, the two clamping blocks are used for enabling the two clamping strips to be attached when being close to each other, and the two clamping blocks are used for enabling the two clamping strips to be separated when being far away from each other; the two rotating shafts are respectively rotated to enable the two holding strips to be arranged up and down, the conjunctiva is placed between the two holding strips, when the two clamping blocks are gradually close to each other, the two holding strips are tightened, so that the conjunctiva is clamped, and when the two clamping blocks are gradually far away from each other, the two holding strips are separated to loosen the conjunctiva.

2. The eyelid retractor according to claim 1, wherein the upper eyelid retractor hook is provided with two rotating shafts, and the two rotating shafts are respectively arranged on the left side and the right side of the upper eyelid retractor hook; the two rotating shafts are respectively arranged on the left side and the right side of the lower eyelid opening hook, and the connecting lines of the four rotating shafts form a rectangle; mounting holes are formed in the positions, corresponding to the rotating shafts, of the upper eyelid opening hook and the lower eyelid opening hook, the free end of each rotating shaft is provided with a connecting mechanism, and the rotating shafts are rotatably connected with the connecting mechanisms; each connecting mechanism is detachably arranged in the corresponding mounting hole.

3. The eyelid retractor of claim 2, wherein each connecting mechanism comprises a connecting block and a fixture block; a groove is formed in the connecting block, and the rotating shaft is rotatably arranged in the groove; the right side wall of the connecting block is connected with the clamping block, and when the clamping block is arranged in the corresponding mounting hole, the right side wall of the connecting block is abutted against the side wall of the upper eyelid opening hook or the lower eyelid opening hook.

4. The eyelid retractor according to claim 3, wherein the connecting block is provided with more than two protrusions on the inner wall, the outer circumferential wall of the rotating shaft is provided with an annular groove matched with the protrusions, and each protrusion is arranged in the annular groove.

5. The eyelid retractor according to claim 3, wherein the clamping blocks comprise a left clamping block and a right clamping block connected with the right side wall of the left clamping block, the diameter of the left clamping block is gradually increased from left to right, the right clamping block is of a cylindrical structure, and the diameter of the cross section of the rightmost end of the left clamping block is equal to that of the right clamping block; the shape of the mounting hole is matched with the shapes of the left clamping block and the right clamping block.

6. The eyelid retractor according to claim 5, wherein the left latch is a silicone left latch or a rubber left latch, and the right latch is a silicone right latch or a rubber right latch.

7. The eyelid retractor of claim 5, wherein the left latch and the right latch are of a unitary construction.

8. The eyelid retractor of claim 1, wherein one end of each of the two clamping strips passes through a side wall of the same rotating shaft, and the parts of the two clamping strips extending out of the side walls of the rotating shaft are fixed by fixing members.

9. The eyelid retractor of claim 1, wherein both of the two clips are hard silicone clips or hard rubber clips.

10. The eyelid retractor of claim 1, wherein the two side arms are each provided with a rest at a middle portion thereof for contacting a finger.

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