External sclera illumination positioning device for ophthalmologic operation

Abstract

The utility model belongs to the field of medical instruments, and particularly relates to an external sclera illumination positioning device for an ophthalmologic operation. According to the technology, the device comprises a vertically-arranged shell, a pressing rod is fixed to the shell, a plurality of bosses are fixed to the bottom of the pressing rod, two positioning rings are horizontally fixed in the shell, an inner pipe located between the two positioning rings is independently installed in the shell in a penetrating mode, a rotating assembly is arranged between the inner pipe and the shell, and a lighting assembly is arranged in the inner pipe. Two mounting blocks which are in mirror alignment are fixed on the inner wall of the inner tube, guide grooves which are of inverted V-shaped structures are formed in the two mounting blocks, light shielding plates used for shielding illumination light rays are independently clamped in inclined sections of the two guide grooves, and driving assemblies are arranged on the inner tube and the shell. By means of the technical scheme, extra lighting and illumination can be conducted on an operation area while the eyeball is jacked and pressed, different devices are not needed, the occupied space of the eye area is reduced, and the illumination range and area can be adjusted according to needs.

Description

Technical Field

[0001] The utility model belongs to the field of medical instruments, and in particular relates to a scleral epi-illumination positioning device for ophthalmic surgery. Background Art

[0002] Ophthalmology, short for "eye disease specialist," is a discipline that studies diseases of the visual system, including the eyeball and its associated tissues. During ophthalmic surgery, lighting devices are often used to illuminate the area of ​​the patient's eye requiring surgical treatment. During eye surgery, lighting devices, various surgical instruments, microscopes, and other medical devices are required. This creates a large number of instruments in the eye area, making the confined space difficult for doctors to operate.

[0003] During ophthalmic surgeries, such as vitreous removal, scleral lining, and retinal laser treatment, it is sometimes necessary to apply pressure to the patient's eyeball and apply additional lighting to expose the surgical field and stabilize the eyeball. This can further congest the eye area, severely limiting the flexibility of the surgeon and assistants during the procedure and even causing surgical difficulties. Therefore, reducing the space occupied by surgical instruments is essential to allow surgeons and assistants greater flexibility during the procedure and increase the success rate of the surgery. Utility Model Content

[0004] The purpose of the utility model is to provide a scleral epi-illumination positioning device for ophthalmic surgery, which can reduce the space occupied when pressing the eyeball and providing additional lighting.

[0005] The scleral epi-illumination positioning device for ophthalmic surgery includes a vertically arranged shell, a pressure rod is fixed on the shell, a plurality of bosses are fixed to the bottom of the pressure rod, two positioning rings are fixed horizontally in the shell, an inner tube is independently installed in the shell and is located between the two positioning rings, a rotating assembly for rotating the inner tube is provided between the inner tube and the shell, a lighting assembly for illuminating the eye is provided in the inner tube, two mirror-aligned mounting blocks are fixed on the inner wall of the inner tube, guide grooves with an inverted "V"-shaped structure are provided on the two mounting blocks, and shading plates for blocking the illumination light are independently engaged in the inclined sections of the two guide grooves, and driving components for driving the two shading plates to move along the guide grooves are provided on the inner tube and the shell.

[0006] Furthermore, the rotating assembly includes a through hole communicating with the inside and outside of the shell formed on the side wall, and a plurality of anti-slip grooves formed on the inner tube along the circumferential direction.

[0007] Furthermore, the lighting assembly includes a power supply, which is installed in the shell. A crossbar is horizontally fixed in the inner tube, and the crossbar is located above the two sunshades. Several lighting lamps electrically connected to the power supply are fixed on the crossbar.

[0008] Furthermore, two mirror-symmetrical light-blocking plates are fixed horizontally in the inner tube, and the two light-blocking plates are respectively located below the two light-shielding plates.

[0009] Furthermore, the driving assembly includes two bevel gears meshing with each other, tension springs are fixed on the two light-shielding plates, and the other ends of the two tension springs are fixed on the inner wall of the inner tube; a first rotating shaft that can rotate freely is horizontally arranged in the shell, a pull rope is wrapped around the first rotating shaft, and one end of the pull rope has two forked lines, and the two forked lines are respectively fixed on the two light-shielding plates, a mounting plate is horizontally fixed on the inner wall of the inner tube, and a second rotating shaft that can rotate freely is vertically installed on the mounting plate, the two bevel gears are respectively mounted on the first rotating shaft and the second rotating shaft, and the second rotating shaft is mounted on the rotating wheel, and a through hole is opened on the shell for exposing the rotating wheel, and a block is engaged between the hole wall of the through hole and the rotating wheel.

[0010] Furthermore, a hanging ear is fixed on the outer side wall of the shell.

[0011] Furthermore, a sealing plate made of a transparent material is horizontally fixed to the lower end of the shell for protecting the interior.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] The doctor or assistant extends the pressure rod toward the patient's eyeball, and the boss at the bottom of the pressure rod fits and presses on the sclera. The light from the lighting lamp in the inner tube shines on the eyeball, so that the surgical area can be additionally illuminated while pressing the eyeball. There is no need to use different devices, which reduces the space occupied in the eye area and allows doctors and assistants to be more flexible during the operation to increase the success rate of the operation. When illuminating the surgical area and pressing the eyeball, the distance between the two light shielding plates can be adjusted by the driving component, and the lighting range of the lighting component can be adjusted, allowing the doctor to adjust it according to the required clarity and the size of the surgical field, which helps the doctor observe the surgical site more accurately. The doctor or assistant rotates the inner tube with his fingers. After the inner tube is rotated, the area illuminated by the two light shielding plates of the lighting component will change together. By rotating the inner tube, the doctor or assistant can adjust the lighting area at any time according to the needs of the operation while pressing the eyeball. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the utility model;

[0015] Figure 2 for Figure 1 Cross-sectional view at AA in the middle;

[0016] Figure 3 It is a three-dimensional diagram of the utility model;

[0017] Figure 4 It is an exploded view of the utility model;

[0018] The names of the components in the figure are: 1, hanging ear 2, shell 3, power supply 4, bevel gear 5, first rotating shaft 6, second rotating shaft 7, mounting plate 8, rotating wheel 9, positioning ring 10, inner tube 11, cross bar 12, clamping block 13, tension spring 14, pressure rod 15, boss 16, sealing plate 17, light baffle 18, light shielding plate 19, mounting block 20, pull rope. DETAILED DESCRIPTION

[0019] The present invention will be further described below through specific embodiments in conjunction with the accompanying drawings, but this does not limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0020] Example 1

[0021] The embodiment of the present invention is a scleral epi-illumination positioning device for ophthalmic surgery, such as Figure 1 、 Figure 2 and Figure 4 As shown, it includes a vertically arranged shell 2, the shell 2 is a circular tube structure, and a hanging ear 1 is fixed on the outer wall of the shell 2, as shown in FIG. Figure 1 As shown, the ear hook 1 is an inverted L-shaped structure, which can be used to hang or clip on a collar, pocket, bracket, etc., making it convenient for doctors to carry and install. When installed on the bracket, the bracket can support the lighting positioning device, allowing the lighting positioning device to remain in a predetermined position for a long time;

[0022] A pressure rod 14 is fixed to the housing 2, and a plurality of bosses 15 are fixed to the bottom of the pressure rod 14; two bosses 15 are evenly distributed on the bottom of the pressure rod 14, and the bosses 15 are both semi-circular in shape. The surface of the bosses 15 of the semi-circular structure is relatively rounded, which can avoid damage to the sclera; the pressure rod 14 is located on one side of the bottom of the housing 2, which can avoid excessive obstruction of the eyeball by the pressure rod 14, allowing the eyeball's field of vision to be more exposed;

[0023] Two positioning rings 9 are fixed horizontally in the housing 2. The two positioning rings 9 are located on the inner tube wall of the lower half of the housing 2. An inner tube 10 is independently installed in the housing 2 and is located between the two positioning rings 9. The two positioning rings 9 can block and position the inner tube 10, so that the inner tube 10 rotates at a fixed position in the housing 2.

[0024] To further explain, Figure 1 、 Figure 2 and Figure 3As shown, in this embodiment, the shell 2 is preferably provided with a through hole communicating with the inside and outside on the side wall, and the through hole is used to expose a part of the tube wall of the inner tube 10, so that the doctor's fingers can contact the tube wall of the inner tube 10 and rotate the inner tube 10 by the fingers; a plurality of anti-slip grooves are provided on the inner tube 10 along the circumferential direction, and the anti-slip grooves are used to increase the friction between the inner tube 10 and the fingers, so that the fingers can more easily rotate the inner tube 10 and prevent slipping between the fingers and the inner tube 10; of course, a loose sealing film can also be fixed at the through hole. After the loose sealing film seals the through hole, it is convenient to disinfect the surface of the shell 2 and will not affect the rotation of the inner tube 10 by the fingers; this scheme as a whole constitutes a rotating assembly for rotating the inner tube 10; of course, the rotating assembly can also use gears, and a mounting hole communicating with the inside and outside is provided on the shell 2, and the gear can be rotatably installed in the mounting hole, and a tooth groove for engaging with the gear is provided on the outer tube wall of the inner tube 10 along the circumferential direction.

[0025] To further explain, Figure 1 、 Figure 2 and Figure 3 As shown, the present embodiment preferably includes a power supply 3, which is installed in the shell 2, and a cross bar 11 is fixed horizontally in the inner tube 10, the cross bar 11 is located above the two light shielding plates 18, and a number of lighting lamps electrically connected to the power supply 3 are fixed on the cross bar 11; in the present embodiment, the cross bar 11 is aligned with the center between the two light shielding plates 18, and three lighting lamps are evenly distributed below the cross bar 11, so that the three lighting lamps can illuminate the patient's eyes below after being connected to the power supply 3; in the present embodiment, the power supply 3 is a battery, and the power supply 3 can be a rechargeable lithium battery; the present solution as a whole constitutes a lighting assembly for illuminating the eyes; of course, the lighting assembly can also use an external power supply, and a cross bar 11 is fixed horizontally in the inner tube 10, the cross bar 11 is located above the two light shielding plates 18, and a number of lighting lamps are fixed on the cross bar 11, and all lighting lamps are connected to the external power supply through wires.

[0026] Two mirror-aligned mounting blocks 19 are fixed on the inner wall of the inner tube 10. The two mounting blocks 19 are mirror-symmetrical and are located on the inner tube wall of the inner tube 10 in the front and rear directions respectively.

[0027] The two mounting blocks 19 are provided with guide grooves in an inverted "V" shape, and the inclined sections of the two guide grooves are independently engaged with shading plates 18 for blocking the illumination light; the ends of the two shading plates 18 are respectively engaged in the guide grooves of the inclined sections of the two mounting blocks 19, such as Figure 2 As shown, the two blocks can be arranged in an inclined manner, such as Figure 1As shown, the guide grooves guide the movement direction of the two light shielding plates 18, allowing the two light shielding plates 18 to move in an inclined direction. When the two light shielding plates 18 are closed, they are combined to form an inverted V-shape. When the two light shielding plates 18 are opened, the light emitted by the illumination lamp can pass through the gap between the two light shielding plates 18 and illuminate the eyeball. By adjusting the distance between the two light shielding plates 18, the illumination range of the illumination lamp can be adjusted, allowing the doctor to adjust the field of view according to the required clarity and the size of the surgical area, which helps the doctor to observe the surgical site more accurately.

[0028] Two mirror-symmetrical light shields 17 are fixed horizontally in the inner tube 10. The two light shields 17 are located below two light shielding plates 18 respectively. When the two light shielding plates 18 move to open and close, a gap is formed between them and the inner tube wall, and the gap changes with the movement of the two light shielding plates 18, so that the light of the lighting lamp will leak out from the gap and shine on the patient's eyeball, such as Figure 1 As shown, the two light-blocking plates 17 can block the light leaking from the gap, preventing the leaked light from irradiating outside the operating area and preventing the generated excess halo from affecting the doctor;

[0029] To further explain, Figure 1 、 Figure 2 and Figure 3As shown, the present embodiment preferably includes two bevel gears 4 that mesh with each other, and two shading plates 18 are fixed with tension springs 13, and the other ends of the two tension springs 13 are fixed to the inner wall of the inner tube 10; when the two tension springs 13 are in the initial state, the two shading plates 18 are in a fully open state; a first rotating shaft 5 that can rotate freely is horizontally arranged in the shell 2, and two insertion holes are opened on the inner tube wall of the shell 2, and the two ends of the first rotating shaft 5 are respectively installed in the two insertion holes, so that the first rotating shaft 5 can rotate freely in a horizontal shape; a pull rope 20 is wound around the first rotating shaft 5, and one end of the pull rope 20 has two forked lines, and the two forked lines The forked wires are fixed on the two visors 18 respectively, and the lengths of the two forked wires are connected, so that when the pull rope 20 pulls the two visors 18, the two can move synchronously; a mounting plate 7 is fixed horizontally on the inner wall of the inner tube 10, and a second rotating shaft 6 that can rotate freely is vertically passed through the mounting plate 7. The two bevel gears 4 are respectively mounted on the first rotating shaft 5 and the second rotating shaft 6, and the second rotating shaft 6 is mounted on the rotating wheel 8. A through hole for exposing the rotating wheel 8 is opened on the shell 2, and the doctor's finger can pass through the through hole and fit into the rotating wheel 8; a card block 12 is clamped between the hole wall of the perforation and the rotating wheel 8, and the card block 12 is made of rubber, latex The cam 8 is made of a material such as glue or silicone, and when it is engaged between the hole wall of the perforation and the rotating wheel 8, it can increase the resistance of the rotating wheel 8 when it rotates, and can lock the rotating wheel 8; of course, a loose sealing film can also be fixed at the perforation. After the loose sealing film seals the perforation, it is convenient to disinfect the surface of the shell 2 and will not affect the rotation of the rotating wheel 8 by the fingers; this solution as a whole constitutes a driving assembly for driving the two visors 18 to move along the guide groove; when in use, the rotating wheel 8 is rotated, so that the rotating wheel 8 drives one of the bevel gears 4 to rotate through the second rotating shaft 6, and the bevel gear 4 drives the other bevel gear 4 to rotate, The first rotating shaft 5 is driven to rotate by the bevel gear 4. The first rotating shaft 5 will reel in the drawstring 20 when rotating, so that the drawstring 20 pulls the two light shielding plates 18 upward, and the two light shielding plates 18 are tilted upward and closed along the guide groove. When the rotating wheel 8 rotates in the opposite direction, the first rotating shaft 5 will release the drawstring 20, and the two tension springs 13 will shrink and pull the two light shielding plates 18 to reset and open. Therefore, by adjusting the distance between the two light shielding plates 18, the illumination range of the lighting can be adjusted, allowing the doctor to adjust according to the required clarity and the size of the field of view of the surgical area, which helps the doctor to observe the surgical site more accurately.

[0030] A sealing plate 16 made of a transparent material is horizontally fixed at the lower end of the shell 2 for protecting the interior. In this embodiment, the sealing plate 16 is made of acrylic, PC, glass and other materials. It is mainly used to seal and protect the interior of the shell 2 to prevent foreign objects from entering the interior and damaging the internal structure. The transparent sealing plate 16 can easily transmit light.

[0031] During actual use, the doctor or assistant extends the pressure rod 14 toward the patient's eyeball, and the boss 15 at the bottom of the pressure rod 14 fits and presses on the sclera. The light emitted by the lighting lamp in the inner tube 10 shines on the eyeball, thereby providing additional lighting to the surgical area while pressing the eyeball. There is no need to use different devices, which reduces the space occupied in the eye area and allows the doctor and assistant to be more flexible during the operation, thereby increasing the success rate of the operation. When illuminating the surgical area and pressing the eyeball, the rotating wheel 8 can be rotated to drive one of the bevel gears 4 to rotate through the second rotating shaft 6, such as Figure 1 As shown, the two bevel gears 4 drive the first rotating shaft 5 to rotate through the mutual meshing relationship. When the first rotating shaft 5 rotates, the pull rope 20 will be reeled in, so that the pull rope 20 will pull the two visors 18 upward, and the two visors 18 will move upward and close along the guide groove. When the rotating wheel 8 rotates in the opposite direction, the first rotating shaft 5 will release the pull rope 20, and the two tension springs 13 will shrink and pull the two visors 18 to reset and open. Therefore, by adjusting the distance between the two visors 18, the illumination range of the lighting lamp can be adjusted, allowing the doctor to adjust the field of view according to the required clarity and the size of the surgical area, which helps the doctor to observe the surgical site more accurately; the doctor or assistant rotates the inner tube 10 with his fingers. After the inner tube 10 is rotated, the area illuminated by the two visors 18 through which the lighting lamp transmits light will change together. Therefore, by rotating the inner tube 10, the doctor or assistant can adjust the illumination area at any time according to the surgical needs while pressing the eyeball.

Claims

1. An episcleral lighting positioning device for ophthalmic surgery, comprising a vertically arranged housing (2), characterized in that: A pressure rod (14) is fixed on the shell (2), and a plurality of bosses (15) are fixed on the bottom of the pressure rod (14). Two positioning rings (9) are fixed horizontally in the shell (2). An inner tube (10) located between the two positioning rings (9) is independently installed in the shell (2). A rotating assembly for rotating the inner tube (10) is provided between the inner tube (10) and the shell (2). An illumination assembly for illuminating the eyes is provided in the inner tube (10). Two mirror-aligned mounting blocks (19) are fixed on the inner wall of the inner tube (10). The two mounting blocks (19) are provided with guide grooves in an inverted "V"-shaped structure. Light shielding plates (18) for shielding illumination light are independently engaged in the inclined sections of the two guide grooves. A driving assembly for driving the two light shielding plates (18) to move along the guide groove is provided on the inner tube (10) and the shell (2).

2. The episcleral illumination positioning device for ophthalmic surgery according to claim 1, characterized in that: The rotating assembly includes a housing (2) with a through hole communicating with the inside and outside opened on the side wall, and an inner tube (10) with a plurality of anti-slip grooves opened along the circumferential direction.

3. The episcleral illumination positioning device for ophthalmic surgery according to claim 1, characterized in that: The lighting assembly includes a power supply (3), which is installed in the housing (2). A crossbar (11) is horizontally fixed in the inner tube (10), and the crossbar (11) is located above the two light shielding plates (18). A plurality of lighting lamps electrically connected to the power supply (3) are fixed on the crossbar (11).

4. The episcleral illumination positioning device for ophthalmic surgery according to claim 3, characterized in that: Two mirror-symmetrical light-blocking plates (17) are horizontally fixed in the inner tube (10), and the two light-blocking plates (17) are respectively located below the two light-shielding plates (18).

5. The episcleral illumination positioning device for ophthalmic surgery according to claim 1, characterized in that: The driving assembly comprises two bevel gears (4) meshing with each other, a tension spring (13) being fixed on the two shading plates (18), and the other ends of the two tension springs (13) being fixed on the inner wall of the inner tube (10); a first rotating shaft (5) which can rotate freely is horizontally arranged in the shell (2), a pull rope (20) being wound on the first rotating shaft (5), one end of the pull rope (20) having two forked lines, and the two forked lines are respectively fixed on the two shading plates (18); a mounting plate (7) being horizontally fixed on the inner wall of the inner tube (10), a second rotating shaft (6) which can rotate freely is vertically passed through the mounting plate (7), the two bevel gears (4) being respectively mounted on the first rotating shaft (5) and the second rotating shaft (6), and a rotating wheel (8) being mounted on the second rotating shaft (6), and a through hole for exposing the rotating wheel (8) is provided on the shell (2), and a clamping block (12) is engaged between the hole wall of the through hole and the rotating wheel (8).

6. The episcleral illumination positioning device for ophthalmic surgery according to claim 5, characterized in that: A hanging ear (1) is fixed on the outer side wall of the shell (2).

7. The episcleral illumination positioning device for ophthalmic surgery according to claim 6, characterized in that: A sealing plate (16) made of a transparent material and used to protect the interior is horizontally fixed to the lower end of the shell (2).

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