Fixation device for an ex vivo eyeball

Abstract

The utility model discloses a kind of fixing device for isolated eyeball, including platform and support assembly, wherein, support assembly is movably installed on platform, wire is equipped on support assembly, and wire is used to connect support assembly and eyeball.In some embodiments of the present disclosure, the fixing device of eyeball connects support assembly and eyeball by wire, so that eyeball can be relatively fixed.At the same time, since the wire is thin, and the area occupied by the position connected with eyeball is also small, it is beneficial for users to observe isolated eyeball.

Description

Technical Field

[0001] This disclosure relates to the field of medical experimental instruments, specifically to a fixation device for isolated eyeballs. Background Technology

[0002] In some scientific research, it is necessary to extract clinical eye tissue and to perform ex vivo dissections of the eyeballs of humans, non-human primates, rabbits, pigs, dogs, sheep, horses, and other large and medium-sized animals. Fixation of the eyeball is crucial. Existing fixation methods include using a hemispherical recess to accommodate the eyeball, as described in Chinese application CN103310681A. While this should barely meet the requirements for eyeball placement, the hemispherical recess takes up too much space, hindering the user's ability to observe the complete eyeball. Utility Model Content

[0003] This disclosure addresses at least one of the aforementioned deficiencies in the prior art by providing a fixation device for an isolated eyeball, facilitating user observation of the eyeball.

[0004] In a first aspect, this disclosure provides a fixation device for an isolated eyeball, including a platform and a support assembly, wherein the support assembly is movably mounted on the platform, and the support assembly is provided with a wire for connecting the support assembly and the eyeball.

[0005] Optional, including at least 3 support components.

[0006] Optionally, a support structure is formed on the platform for supporting the eyeball.

[0007] Optionally, the supporting structure has a first cavity with a first opening, the eyeball can be placed on the first opening to seal the first opening, and the first cavity has a piston that is movably installed in the first cavity.

[0008] Optionally, the volume of the first cavity can be adjusted by moving the piston relative to the first cavity, thereby cooperating with the eyeball to create a negative pressure in the first cavity.

[0009] Optionally, the support assembly includes a support and a slider, the support is movably mounted on the platform, the line is connected to the slider, and the slider is slidably mounted on the support.

[0010] Optionally, the slider is formed with a hook to connect with the line, the slider is formed with a thread, and the nut can engage with the thread of the slider to lock the slider to the bracket.

[0011] Optionally, the bracket is rotatably connected to the platform.

[0012] Optionally, the platform is also included as a base, and the platform is rotatably connected to the base. The support and the platform rotate relative to each other about a first axis, and the platform and the base rotate relative to each other about a second axis. The first axis and the second axis are at 90° to each other.

[0013] Optionally, it also includes a magnifying glass and a magnifying glass frame, the magnifying glass frame being connected to the base, the magnifying glass being installed inside the magnifying glass frame, and the magnifying glass frame being provided with a first lamp.

[0014] In some embodiments of this disclosure, the eyeball fixation device connects the support assembly and the eyeball via a wire, allowing the eyeball to be relatively fixed. Furthermore, because the wire is thin and occupies a small area at its connection point with the eyeball, it facilitates observation of an isolated eyeball by the user. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a fixation device for an isolated eyeball according to one embodiment of this disclosure.

[0016] Figure 2 This is a schematic diagram of the load-bearing structure in one embodiment of this disclosure.

[0017] Figure 3 This is a schematic diagram of the structure of a portion of the load-bearing structure from another angle in one embodiment of this disclosure.

[0018] Figure 4-6 This is a schematic diagram of the structure of the bracket assembly and the mounting base when they are engaged at different angles in one embodiment of this disclosure.

[0019] Figure 7 This is a schematic diagram of the structure of the magnifying glass and the magnifying glass frame in one embodiment of this disclosure.

[0020] Figure 8 This is a schematic diagram of the structure when the magnifying glass and the magnifying glass frame are engaged in another embodiment of this disclosure.

[0021] Figure 9 This is a schematic diagram of the structure of the slider, the line, and the eyeball in one embodiment of the present disclosure.

[0022] The diagram identifies the following components: 100, platform; 110, load-bearing structure; 111, first cavity; 112, first opening; 113, piston; 114, first sliding groove; 115, protrusion; 120, mounting base; 130, first rotating shaft; 200, bracket assembly; 210, bracket; 211, bracket cavity; 212, second opening; 213, third opening; 220, sliding component; 221, hook; 223, nut; 300, wire; 400, eyeball; 500, base; 510, screw; 610, magnifying glass; 620, magnifying glass frame; 621, first lamp; 630, connecting rod; 631, second lamp; 640, connector; 641, bolt; 642, nut; 700, armrest. Detailed Implementation

[0023] In the description of this disclosure, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this disclosure.

[0024] like Figure 1 As shown, this disclosure provides a fixation device for an isolated eyeball 400, including a platform 100 and a support assembly 200. The support assembly 200 is movably mounted on the platform 100, and a wire 300 is provided on the support assembly 200 for connecting the support assembly 200 and the eyeball 400. Specifically, the fixation device includes at least three support assemblies 200. The eyeball 400 is fixed by applying force in three directions through the three support assemblies 200 and the three wires 300 disposed on the three support assemblies 200, ensuring that the eyeball 400 is placed relatively stably.

[0025] In some embodiments, the thread 300 is a suture 300, which connects to the superficial sclera of the eyeball 400. Since the position of the sclera can be flexibly selected according to the size of the eyeball 400 and is not limited by the position of the muscles, it allows the user to adjust the connection position between the thread 300 and the eyeball 400 according to the actual situation, which is beneficial for the user to observe specific parts of the eyeball 400.

[0026] Optionally, a support structure 110 is formed on the platform 100 for supporting the eyeball 400.

[0027] Optional, such as Figure 2As shown, a first cavity 111 is formed in the supporting structure 110. The first cavity 111 has a first opening 112, on which the eyeball 400 can be placed to seal the first opening 112. The first cavity 111 also has a piston 113, which is movably installed within the first cavity 111. Optionally, the volume of the first cavity 111 can be adjusted by the movement of the piston 113 relative to the first cavity 111, thereby cooperating with the eyeball 400 to create a negative pressure in the first cavity 111. Firstly, the first opening 112 is used to house the optic nerve of the eyeball 400, preventing the optic nerve from having nowhere to be placed. Secondly, the movable connection of the piston 113 allows the volume of the first cavity 111 to be adjusted, thereby creating a negative pressure, which helps to fix the eyeball 400 on the first opening 112. In some embodiments, the top surface of the supporting structure 110 is arc-shaped with the first opening 112 formed in the middle, which also facilitates the installation and fixation of the eyeball 400.

[0028] In some embodiments, such as Figure 3 As shown, a first sliding groove 114 is formed on the side of the supporting structure 110. The piston member 113 protrudes outward to form a protrusion 115, which extends from the first cavity 111, passes through the first sliding groove 114, and reaches outside the supporting structure 110. A rubber ring is formed on the piston member 113, which abuts against the first cavity 111 to provide friction and prevent the piston member 113 from falling off due to gravity. It should be noted that the resistance provided by the rubber ring is only to prevent the piston member 113 from falling off due to gravity. When the user uses greater force to move the piston member 113, the piston member 113 will also move accordingly.

[0029] In some embodiments, the first cavity 111 extends vertically and is generally cylindrical. The portion of the piston 113's cross-section within the first cavity 111 is generally circular, and its shape and size roughly match the cross-section of the first cavity 111. The first sliding groove 114 may also extend vertically. The user can move the piston 113 up and down along the first cavity 111 from outside the support structure 110 via the protrusion 115 of the piston 113 to adjust the volume of the first cavity 111.

[0030] In some embodiments, such as Figure 4-6 As shown, the support assembly 200 includes a support 210 and a slider 220. The support 210 is movably mounted on the platform 100, and the line 300 is connected to the slider 220. The slider 220 is slidably mounted on the support 210. Optionally, the slider 220 has a hook 221 for connecting with the line 300, and the slider 220 has threads. A nut 223 can engage with the threads of the slider 220 to lock the slider 220 to the support 210.

[0031] Specifically, the nut 223 can be threaded onto the slider 220, allowing the slider 220 to engage with the nut 223 to clamp the bracket 210, thereby locking the slider 220 in a certain position on the bracket 210. Specifically, the bracket 210 has a bracket cavity 211, and the slider 220 can be located within the bracket cavity 211 and slide along it. The side of the bracket cavity 211 has a second opening 212 and a third opening 213. The hook portion 221 of the slider 220 extends out of the bracket 210 through the second opening 212, and the threaded portion of the slider 220 extends out of the bracket 210 through the third opening 213. This threaded portion can be connected to the nut 223.

[0032] Optionally, the bracket 210 is rotatably connected to the platform 100. Specifically, the platform 100 is provided with a mounting base 120, and the bracket 210 is rotatably connected to the mounting base 120. In some embodiments, the platform 100 is provided with three mounting bases 120 to be rotatably connected to three brackets 210 respectively. Specifically, the bracket 210 and the mounting base 120 can be locked by a bolt and nut. In some embodiments, the bolt can pass through the bracket 210 and the mounting base 120 and connect to the nut, and the relative rotational position of the bracket 210 and the mounting base 120 can be clamped and locked by the engagement of the nut and the bolt. When it is necessary to rotate the bracket 210, the user can rotate the nut to loosen the bracket 210 and the mounting base 120, so that the bracket 210 and the mounting base 120 can rotate relative to each other. When it is necessary to lock the bracket 210 and the mounting base 120, the user can rotate the nut to lock the relative position of the bracket 210 and the mounting base 120 by the engagement of the nut and the bolt. Furthermore, there are various ways to lock the rotation of the bracket 210 and the mounting base 120, and it is not limited to the above-described solution. In addition, in some embodiments, the bracket 210 and the platform 100 are not rotatably connected, but are relatively fixed.

[0033] Optionally, the fixation device for the isolated eyeball 400 also includes a base 500, with the platform 100 rotatably connected to the base 500. The bracket 210 and the platform 100 rotate relative to each other around a first axis, and the platform 100 and the base 500 rotate relative to each other around a second axis, with the first and second axes forming a 90° angle. Specifically, the second axis is parallel to the vertical direction, and the first axis is parallel to the horizontal direction. It should be noted that the first and second axes can be either physical axes or virtual rotation axes; this disclosure does not impose any specific limitations. The 90° angle between the first and second axes increases the range of motion of the slider 220 on the bracket 210, which is beneficial for the user to fix the eyeball 400 using the wire 300.

[0034] In some embodiments, the platform 100 is rotatably connected to the base 500 via a first rotating shaft 130. The first rotating shaft 130 is fixedly connected to the platform 100 and inserted into the base 500. The base 500 has a threaded hole and a screw 510, which passes through the threaded hole and abuts against the first rotating shaft 130. When the platform 100 needs to rotate, the screw 510 can be rotated to release the screw from contact with the first rotating shaft 130, allowing the first rotating shaft 130 to rotate relative to the base 500. When the platform 100 needs to be locked, the screw 510 can be rotated to abut against the first rotating shaft 130, causing the first rotating shaft 130 to also abut tightly against the base 500, thus locking the first rotating shaft 130 and preventing relative rotation between the first rotating shaft 130 and the platform 100.

[0035] Optional, such as Figure 7 As shown, the fixing device for the isolated eyeball 400 also includes a magnifying glass 610 and a magnifying glass frame 620. The magnifying glass frame 620 is connected to the base 500, and the magnifying glass 610 is installed inside the magnifying glass frame 620. The magnifying glass frame 620 is equipped with a first lamp 621. Specifically, the magnifying glass 610, the eyeball 400, the supporting structure 110, the platform 100, and the base 500 should be arranged sequentially from top to bottom. By setting the first lamp 621 inside the magnifying glass frame 620, the above solution facilitates observation of the eyeball 400 by turning on the first lamp 621.

[0036] In some embodiments, such as Figure 8 As shown, the magnifying glass 610 is detachably connected to the magnifying glass frame 620. Specifically, the magnifying glass frame 620 has a through hole, with the third opening 213 of the through hole facing upwards, so that the magnifying glass 610 can be placed in the groove from top to bottom. The fourth opening of the through hole faces downwards, and a retaining member is formed at the bottom of the through hole to prevent the magnifying glass 610 from slipping out of the fourth opening of the through hole.

[0037] In some embodiments, the magnifying glass frame 620 is connected to the base 500 via a connecting rod 630, and the magnifying glass frame 620 is slidably connected to the connecting rod 630. Optionally, the magnifying glass frame 620 is slidably connected to the connecting rod 630 via a connector 640, and the connector 640 is provided with a bolt 641 and a nut 642. The shank of the bolt 641 can pass through the connector 640 and the connecting rod 630 to the other end of the connecting rod 630, where it is threadedly connected to the nut 642. The nut 642 and the head of the bolt 641 clamp the connecting rod 630 and the connector 640 to lock the connector 640 and the magnifying glass frame 620 at a specific position on the connecting rod 630. Specifically, the connecting rod 630 has a second sliding groove for the bolt 641 to pass through. The connector 640 also has a through hole for the bolt 641 to pass through. Specifically, a cable channel can be provided on the connecting rod 630 for the cable of the first lamp 621 to pass through.

[0038] In some embodiments, the connecting rod 630 can be a telescopic rod. Furthermore, a second light fixture 631 can be provided at the top of the connecting rod 630 to provide a light source for the user's observation.

[0039] In some embodiments, the fixation device for the isolated eyeball 400 further includes two arm pillows 700, which are respectively disposed on the left and right sides of the platform 100 for the user to place their arms on.

[0040] In some embodiments, platform 100 is a cuboid with a length and width of 20-24 cm. The height of the supporting structure 110 and bracket 210 is 3-4 cm. Base 500 is a cylinder with a diameter of 24-26 cm. The distance from base 500 to platform 100 is 7-9 cm. The height of connecting rod 630 is 38-40 cm. Magnifying glass frame 620 and magnifying glass 610 can slide relative to connecting rod 630. The height of magnifying glass frame 620 and magnifying glass 610 from the bottom of connecting rod 630 can be adjusted between 20-40 cm (if the connecting rod is 40 cm high). Armrest 700 has a length of 15-20 cm, a width of 12-14 cm, and a height of 5-6 cm. In some embodiments, magnifying glass 610 and magnifying glass frame 620 are not detachable. The diameter of magnifying glass frame 620 is 5.5-6 cm, and its height is 0.5-0.8 cm. The size of magnifying glass 610 is 5-5.5 cm. In some embodiments, the magnifying glass 610 and the magnifying glass frame 620 are detachable. The extension length of the bracket 210 is 2.5-3.5 cm. Optionally, the diameter of the magnifying glass frame 620 is 7.5-8 cm, and the height is 0.8-1 cm. The size of the magnifying glass 610 is 6.7-6.9 cm. This magnifying glass height is set to free up operating space and facilitate the use of magnifying glasses of different magnifications.

[0041] In some embodiments, the user can first place the eyeball 400 on the first opening 112 of the first cavity 111 of the support structure 110, wherein the optic nerve of the eyeball 400 can be placed within the first cavity 111. Next, the piston 113 is adjusted to create negative pressure in the first cavity 111, allowing the eyeball 400 to be relatively stably placed on the support structure 110. Then, the user can adjust the position and orientation of the bracket 210 and the slider 220 to allow the user to fix the eyeball 400 using multiple wires 300, specifically as follows... Figure 9 As shown. The user can adjust the height of the magnifying glass 610 and the magnifying glass frame 620 to select a suitable height for observing the eyeball 400. The user can place their arm on the armrest 700 and then observe the eyeball 400 through the magnifying glass 610. In addition, during observation, the user can also rotate the platform 100 to observe the eyeball 400 at a better angle.

[0042] In some embodiments, the fixation device for the isolated eyeball 400 connects the support assembly 200 and the eyeball 400 via a thread 300. Because the thread 300 is thin and can be fixed to the eyeball 400 by stitching, the area occupied by the connection point can be small, effectively preventing the thread 300 from obstructing the user's view 300 and facilitating observation of the isolated eyeball 400. Furthermore, in some embodiments, the support structure 110 for supporting the eyeball 400 is provided with a first cavity 111 capable of generating negative pressure to gently hold the eyeball 400 in place, preventing it from moving freely. Moreover, the rotatability of the platform 100 and the support 210 facilitates user fixation of the eyeball 400.

[0043] The above embodiments are only used to illustrate the technical solutions of this disclosure, and are not intended to limit it. Although this disclosure has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure.

Claims

1. A fixation device for an isolated eyeball, characterized in that, The device includes a platform and a support assembly, wherein the support assembly is movably mounted on the platform and has a wire for connecting the support assembly to the eyeball.

2. The fixation device for an isolated eyeball according to claim 1, characterized in that, A support structure is formed on the platform to support the eyeball.

3. The fixation device for an isolated eyeball according to claim 2, characterized in that, The supporting structure has a first cavity with a first opening. The eyeball can be placed on the first opening to seal it. The first cavity is provided with a piston that is movably installed in the first cavity.

4. The fixation device for an isolated eyeball according to claim 3, characterized in that, The piston moves relative to the first cavity to adjust the volume of the first cavity, thereby cooperating with the eyeball to create negative pressure in the first cavity.

5. The fixation device for an isolated eyeball according to claim 1, characterized in that, The support assembly includes a support and a slider. The support is movably mounted on the platform, the line is connected to the slider, and the slider is slidably mounted on the support.

6. The fixation device for an isolated eyeball according to claim 5, characterized in that, The slider has a hook for connecting to the line, and the slider has a thread. A nut can engage with the thread of the slider to lock the slider to the bracket.

7. The fixation device for an isolated eyeball according to claim 5, characterized in that, The bracket is rotatably connected to the platform.

8. The fixation device for an isolated eyeball according to claim 6, characterized in that, It also includes a base, and the platform is rotatably connected to the base, wherein the bracket and the platform rotate relative to each other about a first axis, and the platform and the base rotate relative to each other about a second axis, with the first axis and the second axis forming a 90° angle.

9. The fixation device for an isolated eyeball according to claim 8, characterized in that, It also includes a magnifying glass and a magnifying glass frame, the magnifying glass frame being connected to the base, the magnifying glass being installed inside the magnifying glass frame, and the magnifying glass frame being provided with a first lamp.

10. The fixation device for an isolated eyeball according to claim 1, characterized in that, It includes at least three support components.

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