Eye speculum for eye surgery

Abstract

The invention discloses an eye speculum for eye surgery, which belongs to the technical field of eye speculum equipment and comprises an adjusting base, a horizontal rotating support is arranged on the adjusting base, a lifting handle mounted in a clamping manner is arranged on the horizontal rotating support, a shaft sleeve is arranged on the lifting handle, a connecting support is arranged on the shaft sleeve, and a hinged deflection angle adjusting device is arranged on the connecting support. The deflection angle adjusting device is provided with an eyelid pulling device which rotates in a clamping mode. According to the eye speculum for the eye surgery, the problem that eyeballs are dry in the eyelid expanding process is solved, the problems that the structure of eyelid pulling equipment is difficult to adjust and eyelids can only be subjected to single-point traction are solved, the manual operation task process is reduced, and the eye speculum for the eye surgery is provided while the structure of the eyelid pulling equipment is adjusted. Artificial tears can be smeared on eyelids, friction stimulation is reduced, and the comfort of a patient in the operation process is guaranteed.

Description

Technical Field

[0001] The present invention belongs to the technical field of eyelid opening equipment, and specifically refers to an eyelid opening device for eye surgery. Background Art

[0002] Eyelid opening devices are instruments used to maintain the eyelids open during ophthalmic surgery and examinations. Early methods relied on manual traction (such as fingers or simple metal retractors), which resulted in unstable operation and fatigue. After the 1960s, spring-loaded eyelid opening devices became mainstream, achieving self-fixation through elastic mechanics, but still had drawbacks such as compression of periorbital tissue and poor adaptability. At the same time, during eye surgery, pulling the eyelids can cause a foreign body sensation in the patient, and prolonged contact of the eyes with air can cause dry eyes. Medical staff usually need to apply artificial tears to the patient's eyelids, which is labor-intensive. Existing lifting methods use cotton swabs and fingers, which require a certain level of experience and skill from the operator. Summary of the Invention

[0003] In view of the above situation, it is necessary to solve the problem of dry eyeballs during eyelid expansion, and at the same time solve the problem that the structure of the eyelid pulling device is difficult to adjust and the eyelid can only be pulled by a single point, so as to reduce the manual operation task process. The present invention provides a lid speculum for eye surgery, which can not only adjust the structure of the eyelid traction device, but also apply artificial tears on the eyelid, reduce friction stimulation, and ensure the patient's comfort during the operation.

[0004] The technical solution adopted by the present invention is as follows: The present invention provides a lid speculum for eye surgery, including an adjustment base, a horizontal rotating bracket is provided on the adjustment base, a lifting handle is provided on the horizontal rotating bracket, a shaft sleeve is provided on the lifting handle, a connecting bracket is provided on the shaft sleeve, a hinged deflection angle adjustment device is provided on the connecting bracket, and a locking and rotating eyelid pulling device is provided on the deflection angle adjustment device.

[0005] Furthermore, the eyelid pulling device includes a structure adjustment sleeve, a sliding limit tube, and an eyelid pulling bracket. The structure adjustment sleeve is hinged to the deflection angle adjustment device, the sliding limit tube is engaged and slid on the structure adjustment sleeve, and the eyelid pulling bracket is engaged and slid in the sliding limit tube.

[0006] Furthermore, a one-way tube groove is provided in the structure adjustment sleeve, a sealing ball is provided in the one-way tube groove, the sealing ball and the one-way tube groove are connected by a spring, a drainage hole is provided on the one-way tube groove, a structure adjustment groove is provided in the structure adjustment sleeve, the structure adjustment groove is fixedly connected to the drainage hole, the one-way tube groove can be used to store eye drops, and an external hose is provided on the one-way tube groove.

[0007] Furthermore, the structural adjustment groove is set to an arc structure, and the cross-sectional areas at both ends of the structural adjustment groove are different. The cross-sectional area of the structural adjustment groove gradually decreases from away from the drainage hole to close to the drainage hole, which is conducive to the eyelid pulling bracket moving as the shape of the structural adjustment groove changes.

[0008] Furthermore, the sliding limit tube is configured as a hollow arc-shaped structure, a clamping block is provided on the inner wall of the sliding limit tube, and a sliding groove is provided on the outer wall of the structural adjustment sleeve. The sliding limit tube relies on the locking and sliding relationship between the clamping block and the sliding groove to achieve sliding on the outer wall of the structural adjustment sleeve, and a clamping groove is provided on the inner wall of the sliding limit tube for limiting the sliding direction of the eyelid pulling bracket.

[0009] Furthermore, the eyelid pulling bracket includes a flat-mouth end bracket, a connecting middle section component and a mosaic end bracket. A card block is provided at the connection between the connecting middle section component and the mosaic end bracket. Relying on the card block, the eyelid pulling bracket slides along the card groove on the inner wall of the sliding limit tube. The flat-mouth end bracket is fixedly set on the connecting middle section component.

[0010] Furthermore, a concave eyelid resistance-enhancing opening is provided at the front end of the flat-end bracket, and the eyelid resistance-enhancing opening allows the medicine to fully contact the eyelid when it flows from the gap between the two groups of flat-end brackets to the opening.

[0011] Furthermore, a pushing protrusion is provided on the chimeric end bracket, and the pushing protrusion is in contact with the sealing ball. The sealing ball is displaced under the pressure of the pushing protrusion, and the eye drops flow out of the one-way tube groove.

[0012] Furthermore, the eyelid pulling bracket is provided with two groups, and the two groups of the chimeric end brackets are respectively provided with a connecting rod and a limiting slot, the connecting rod slides in the limiting slot, and the connecting rod and the limiting slot are connected by a spring.

[0013] Furthermore, a gap is provided between the two groups of eyelid pulling brackets. When the pushing protrusion squeezes the sealing ball and causes the one-way tube groove to discharge the eye drops, the medicine moves along the gap between the two groups of eyelid pulling brackets toward the flat end bracket end until it contacts the eyelid, thereby lubricating the eyeball.

[0014] Furthermore, the shape of the two groups of chimeric end brackets after combination is the same as the shape of the structural adjustment groove. The two groups of chimeric end brackets are set to be arc-shaped, and the chimeric end brackets can be engaged and slid in the structural adjustment groove. The cross-sectional surfaces of the two groups of chimeric end brackets gradually shrink in the direction approaching the structural adjustment sleeve.

[0015] Furthermore, the deflection angle adjustment device includes a deflection limit bracket, a dial, a pointer bracket, and an embedded limit bracket. The deflection limit bracket is hinged to the structural adjustment sleeve. The dial and the deflection limit bracket are fixedly connected through the bracket. The pointer bracket is engaged and rotatably arranged on the center of the dial. The embedded limit bracket is fixedly installed on the pointer bracket. A pointer is provided on the pointer bracket. The pointer bracket is fixedly connected to the structural adjustment sleeve. The structural adjustment sleeve rotates as the pointer bracket rotates.

[0016] Furthermore, a bracket positioning groove is provided in the deflection limit bracket, a horizontally sliding layered limit plate is provided in the bracket positioning groove, and the layered limit plate and the bracket positioning groove are connected by a spring, and a button that can be turned with a fingernail is provided on the layered limit plate to adjust the position of the layered limit plate in the bracket positioning groove, and the layered limit plate is in contact with and connected to the embedded limit bracket, and each connecting plate on the layered limit plate serves to limit the range of movement of the embedded limit bracket, thereby ensuring that the pointer bracket can be fixed at a fixed angle position when rotating on the dial.

[0017] Furthermore, a medicine support plate is provided on the side wall of the deflection limiting bracket, and a sliding clamp is provided on the medicine support plate. The clamp and the medicine support plate are connected by a spring. An eye drop bottle is placed on the medicine support plate, and the eye drop bottle and the one-way pipe groove are connected by a pipe.

[0018] Furthermore, a ball screw is provided in the adjustment base, a nut is provided in the ball screw, a horizontal rotation bracket is provided on the nut, and the adjustment base is provided with two groups, and the two groups of adjustment bases are hinged to each other.

[0019] This solution provides a lid speculum for eye surgery, which has the following beneficial effects: (1) When the chimeric end bracket slides in the structural adjustment groove, the two sets of chimeric end brackets are restricted by the structure of the structural adjustment groove, and the distance between the two sets of flat end brackets is shortened, which changes the width of the eyelid traction device and adjusts the range of eyelids that can be pulled. At the same time, a gap is formed between the two sets of flat end brackets, which constitutes the conditions for capillary phenomenon. The medicine flows out of the one-way tube groove through the gap between the flat end brackets and flows to the eyelid resistance increasing port to contact the eyelid, lubricating the eyelid lifting part and reducing eye pain; (2) The rotation angle of the flat end bracket is controlled by the pointer bracket. According to the angle displayed on the dial, the pointer bracket is rotated. Under the restriction of the connecting plate on the layered limit plate, the pointer bracket is fixed in position after rotation, thereby ensuring that the rotation angle of the flat end bracket is fixed. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A three-dimensional diagram of the overall structure of a lid speculum for eye surgery provided by the present invention; Figure 2 A three-dimensional diagram of a device structure on a set of adjustment bases in a lid speculum for eye surgery provided by the present invention; Figure 3 A schematic diagram of the connection structure between the deflection angle adjustment device and the eyelid pulling device; Figure 4 A schematic diagram of the exploded structure connecting the bracket, the deflection angle adjustment device and the eyelid pulling device; Figure 5 is a three-dimensional cross-sectional view of the deflection angle adjustment device and the eyelid pulling device; Figure 6 A three-dimensional cross-sectional view of an eyelid pulling device; Figure 7 Schematic diagram of the three-dimensional structure of two sets of eyelid pulling brackets; Figure 8 It is a schematic diagram of the connection structure between the structural adjustment sleeve and the sliding limit tube; Figure 9 is a schematic diagram of the three-dimensional structure of the deflection angle adjustment device; Figure 10 for Figure 9 A partial enlarged view of part A; Figure 11 for Figure 6 A partial enlarged view of part B.

[0021] Among them, 1. Adjustment base, 2. Horizontal rotation bracket, 3. Lifting handle, 4. Bushing, 5. Connecting bracket, 6. Deflection angle adjustment device, 7. Eyelid pulling device, 8. Structural adjustment sleeve, 9. Sliding limit tube, 10. Eyelid pulling bracket, 11. One-way pipe groove, 12. Sealing ball, 13. Drainage hole, 14. Structural adjustment groove, 15. Flat end bracket, 16. Connecting middle section component, 17. Mosaic end bracket, 18. Eyelid resistance increasing port, 19. Pushing protrusion, 20. Connecting rod, 21. Limiting slot, 22. Deflection limiting bracket, 23. Dial, 24. Pointer bracket, 25. Embedded limiting bracket, 26. Bracket positioning groove, 27. Layered limiting plate, 28. Medicine support plate, 29. Splint, 30. Ball screw, 31. Nut.

[0022] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0024] In the description of the present invention, it should be understood that terms such as "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limiting the present invention.

[0025] like Figures 1-11 As shown, the present invention provides an eyelid speculum for eye surgery, including an adjustment base 1, a horizontal rotating bracket 2 is provided on the adjustment base 1, a lifting handle 3 that is snap-fitted and installed is provided on the horizontal rotating bracket 2, a shaft sleeve 4 is provided on the lifting handle 3, a connecting bracket 5 is provided on the shaft sleeve 4, a hinged deflection angle adjustment device 6 is provided on the connecting bracket 5, and a snap-fit and rotating eyelid pulling device 7 is provided on the deflection angle adjustment device 6.

[0026] The eyelid pulling device 7 includes a structural adjustment sleeve 8, a sliding limiting tube 9, and an eyelid pulling bracket 10. The structural adjustment sleeve 8 is hinged to the deflection angle adjustment device 6. The sliding limiting tube 9 engages and slides on the structural adjustment sleeve 8, and the eyelid pulling bracket 10 engages and slides in the sliding limiting tube 9.

[0027] A one-way pipe groove 11 is provided in the structure adjustment sleeve 8, and a sealing ball 12 is provided in the one-way pipe groove 11. The sealing ball 12 and the one-way pipe groove 11 are connected by a spring. A drainage hole 13 is provided on the one-way pipe groove 11. A structure adjustment groove 14 is provided in the structure adjustment sleeve 8, and the structure adjustment groove 14 is fixedly connected to the drainage hole 13.

[0028] The structure adjustment groove 14 is set to an arc structure.

[0029] The sliding limit tube 9 is set to a hollow arc structure. A clamping block is provided on the inner wall of the sliding limit tube 9 . A sliding groove is provided on the outer wall of the structure adjustment sleeve 8 , and a clamping groove is provided on the inner wall of the sliding limit tube 9 .

[0030] The eyelid pulling bracket 10 includes a flat end bracket 15, a connecting middle section component 16 and a chimeric end bracket 17. A clamping block is provided at the connection between the connecting middle section component 16 and the chimeric end bracket 17, and the flat end bracket 15 is fixedly set on the connecting middle section component 16.

[0031] The front end of the flat-end bracket 15 is provided with a recessed eyelid resistance opening 18 .

[0032] The engaging end bracket 17 is provided with a pushing protrusion 19 .

[0033] There are two groups of eyelid pulling brackets 10. The two groups of interlocking end brackets 17 are respectively provided with connecting rods 20 and limiting slots 21. The connecting rods 20 slide in the limiting slots 21, and the connecting rods and the limiting slots 21 are connected by springs.

[0034] The two groups of interlocking end brackets 17 are configured to be arc-shaped, and the cross-sections of the two groups of interlocking end brackets 17 gradually shrink toward the direction approaching the structure adjustment sleeve 8 .

[0035] The deflection angle adjustment device 6 includes a deflection limit bracket 22, a dial 23, a pointer bracket 24, and an embedded limit bracket 25. The deflection limit bracket 22 is hinged to the structural adjustment sleeve 8. The dial 23 and the deflection limit bracket 22 are fixedly connected through the bracket. The pointer bracket 24 is engaged and rotatably set on the center of the dial 23. The embedded limit bracket 25 is fixedly installed on the pointer bracket 24. The pointer bracket 24 is fixedly connected to the structural adjustment sleeve 8. The structural adjustment sleeve 8 rotates as the pointer bracket 24 rotates.

[0036] A bracket positioning groove 26 is provided in the deflection limit bracket 22, and a horizontally sliding layered limit plate 27 is provided in the bracket positioning groove 26. The layered limit plate 27 and the bracket positioning groove 26 are connected by a spring. A button is provided on the layered limit plate 27 to adjust the position of the layered limit plate 27 in the bracket positioning groove 26. The layered limit plate 27 is in contact with and connected to the embedded limit bracket 25.

[0037] A medicine supporting plate 28 is provided on the side wall of the deflection limiting bracket 22 . A clamping plate 29 for engagement and sliding is provided on the medicine supporting plate 28 . The clamping plate 29 and the medicine supporting plate 28 are connected via a spring.

[0038] A ball screw 30 is provided in the adjusting base 1 , a nut 31 is provided in the ball screw 30 , a horizontal rotating bracket 2 is provided on the nut 31 , and two groups of adjusting bases 1 are hinged to each other.

[0039] During specific use, when manual precise operation is required, the lifting handle 3 is removed from the adjustment base 1, and one end of the lifting handle 3 is pinched by hand to adjust the angle between the deflection limit bracket 22 and the structure adjustment sleeve 8, and the pointer bracket 24 is rotated to adjust the rotation angle of the structure adjustment sleeve 8 according to the degree on the dial 23. The embedded limit bracket 25 rotates with the pointer bracket 24 and enters the bracket positioning groove 26. The embedded limit bracket 25 is restricted by the connecting plate on the layered limit plate 27 during the rotation process, thereby ensuring that the position of the pointer bracket 24 will not change after rotation, that is, the position of the structure adjustment sleeve 8 will not change after adjustment; Rotate the connecting bracket 5 to adjust the angle of the flat end bracket 15 relative to the eyelid; The flat-end brackets 15 are placed in contact with the eyelids. At this time, the two groups of flat-end brackets 15 are separated to both sides by the elastic force of the spring. The distance between the two groups of flat-end brackets 15 is large, which can pull a wider area of the eyelid. For a larger surgical area, it can better expose the lesion. When the eye lesion area is small, but the patient's eyes are prone to dryness and soreness during surgery, the distance between the eyelid pulling bracket 10 and the structural adjustment sleeve 8 can be adjusted so that the pushing protrusion 19 on the chimeric end bracket 17 enters the drainage hole 13 in the structural adjustment sleeve 8, pushing the sealing ball 12 away from the drainage hole 13, and the eye drops flow from the one-way tube groove 11 to the chimeric end bracket 17; At this time, the interlocking end brackets 17 are restricted by the structure of the structural adjustment groove 14. As the depth of the interlocking end brackets 17 entering the structural adjustment groove 14 changes, the distance between the two sets of interlocking end brackets 17 shortens until they are completely fitted together. The gap formed between the two sets of interlocking end brackets 17 is the condition for achieving capillary action. Eye drops enter the front end of the interlocking end brackets 17 through the gap, and after entering the eyelid resistance increasing port 18, they come into contact with the eyelid and moisten the eye area, reducing dryness of the eyes. In this way, the depth of the flat end bracket 15 in the eyelid can be adjusted, the humidity of the eyeball during the operation can be increased, and the manual operation process can be reduced; When the eyelid needs to be pulled mechanically, the distance between the two sets of eyelid pulling brackets 10 needs to be adjusted in advance, and then the pulling handle 3 is inserted into the handle of the horizontal rotating bracket 2. By driving the ball screw 30 in the adjustment base 1, the ball screw 30 rotates and drives the nut 31 to move, so that the flat end bracket 15 can pull the eyelid; According to the need of pulling direction, the angle between the two sets of adjustment bases 1 is adjusted to ensure the design requirements of eyelid pulling angle and exposure of lesion area.

[0040] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0041] The present invention and its embodiments are described above. This description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by this and, without departing from the purpose of the present invention, designs structures and embodiments similar to this technical solution without inventiveness, they shall fall within the scope of protection of the present invention.

Claims

1. A lid speculum for eye surgery, comprising an adjustment base (1), a horizontal rotation bracket (2) provided on the adjustment base (1), a lifting handle (3) provided on the horizontal rotation bracket (2), a shaft sleeve (4) provided on the lifting handle (3), a connecting bracket (5) provided on the shaft sleeve (4), and characterized in that: The connecting bracket (5) is provided with a hinged deflection angle adjustment device (6), and the deflection angle adjustment device (6) is provided with an eyelid pulling device (7) that is engaged and rotated; the eyelid pulling device (7) comprises a structural adjustment sleeve (8), a sliding limit tube (9), and an eyelid pulling bracket (10); the structural adjustment sleeve (8) is hinged to the deflection angle adjustment device (6), the sliding limit tube (9) is engaged and slid on the structural adjustment sleeve (8), and the eyelid pulling bracket (10) is engaged and slid in the sliding limit tube (9).

2. The eyelid speculum for eye surgery according to claim 1, characterized in that: A one-way pipe groove (11) is provided in the structure adjustment sleeve (8), a sealing ball (12) is provided in the one-way pipe groove (11), the sealing ball (12) and the one-way pipe groove (11) are connected by a spring, a drainage hole (13) is provided on the one-way pipe groove (11), a structure adjustment groove (14) is provided in the structure adjustment sleeve (8), and the structure adjustment groove (14) is fixedly connected to the drainage hole (13); the structure adjustment groove (14) is set as an arc structure.

3. The eyelid speculum for eye surgery according to claim 1, characterized in that: The sliding limit tube (9) is configured as a hollow arc-shaped structure, a clamping block is provided on the inner wall of the sliding limit tube (9), a sliding groove is provided on the outer wall of the structure adjustment sleeve (8), and a clamping groove is provided on the inner wall of the sliding limit tube (9).

4. The eyelid speculum for eye surgery according to claim 1, characterized in that: The eyelid pulling bracket (10) comprises a flat end bracket (15), a connecting middle section component (16) and a chimeric end bracket (17), wherein a clamping block is provided at the connection between the connecting middle section component (16) and the chimeric end bracket (17), and the flat end bracket (15) is fixedly arranged on the connecting middle section component (16).

5. The eyelid speculum for eye surgery according to claim 4, characterized in that: The front end of the flat-mouth end bracket (15) is provided with a recessed eyelid resistance-enhancing opening (18); and the chimeric end bracket (17) is provided with a pushing protrusion (19).

6. The eyelid speculum for eye surgery according to claim 4, characterized in that: The eyelid pulling bracket (10) is provided with two groups, and the two groups of the chimeric end brackets (17) are respectively provided with a connecting rod (20) and a limiting slot (21), the connecting rod (20) slides in the limiting slot (21), and the connecting rod and the limiting slot (21) are connected by a spring.

7. The eyelid speculum for eye surgery according to claim 6, characterized in that: The two groups of the chimeric end brackets (17) are configured to be arc-shaped, and the cross-sections of the two groups of the chimeric end brackets (17) gradually shrink in a direction approaching the structure adjustment sleeve (8).

8. The eyelid speculum for eye surgery according to claim 7, characterized in that: The deflection angle adjustment device (6) comprises a deflection limiting bracket (22), a scale plate (23), a pointer bracket (24), and an embedded limiting bracket (25); the deflection limiting bracket (22) is hinged to the structure adjustment sleeve (8); the scale plate (23) and the deflection limiting bracket (22) are fixedly connected via the bracket; the pointer bracket (24) is engaged and rotatably arranged on the center of the scale plate (23); the embedded limiting bracket (25) is fixedly mounted on the pointer bracket (24); the pointer bracket (24) is fixedly connected to the structure adjustment sleeve (8); and the structure adjustment sleeve (8) rotates as the pointer bracket (24) rotates.

9. The eyelid speculum for eye surgery according to claim 8, characterized in that: A bracket positioning groove (26) is provided in the deflection limiting bracket (22), and a horizontally sliding layered limiting plate (27) is provided in the bracket positioning groove (26), and a spring is used to connect the layered limiting plate (27) and the bracket positioning groove (26). A button is provided on the layered limiting plate (27) to adjust the position of the layered limiting plate (27) in the bracket positioning groove (26), and the layered limiting plate (27) is in contact with and connected to the embedded limiting bracket (25); a medicine support plate (28) is provided on the side wall of the deflection limiting bracket (22), and a clamping plate (29) that slides is provided on the medicine support plate (28), and the clamping plate (29) and the medicine support plate (28) are connected by a spring.

10. The eyelid speculum for eye surgery according to claim 1, characterized in that: A ball screw (30) is provided in the adjusting base (1), a nut (31) is provided in the ball screw (30), a horizontal rotation bracket (2) is provided on the nut (31), and the adjusting base (1) is provided with two groups, and the two groups of adjusting bases (1) are hinged to each other.

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