Expansion support frame for cataract surgery

Abstract

The invention discloses an expansion supporting frame for cataract surgery, and relates to the technical field of medical auxiliary instruments, and the expansion supporting frame is technically characterized by comprising two positioning plates, vertical upward supporting plates are fixedly arranged on the outer walls of the adjacent ends of the two positioning plates, and arc-shaped positioning plates are movably connected to the corresponding sides of the tops of the two supporting plates; an arc-shaped sliding block is slidably connected to the outer wall of the arc-shaped positioning plate, and a vertically-downward second pneumatic push rod is fixedly arranged on the outer wall of the bottom of the arc-shaped sliding block. By rotating an arc-shaped positioning plate between two supporting plates, the arc-shaped positioning plate is moved to a specified position on the top of the head of a patient, an arc-shaped sliding block arranged on the outer wall of the arc-shaped positioning plate slides through a shifting rod, the arc-shaped sliding block is fixed to the specified position on the arc-shaped positioning plate, and then the length of an output shaft of a second pneumatic push rod is adjusted; and the position of the arc-shaped eyelid expansion plate can be conveniently adjusted by rotating a semi-arc-shaped positioning cover arranged on the outer wall of the positioning ball.

Description

Technical Field

[0001] The invention relates to the technical field of medical auxiliary equipment, and in particular to an expansion support frame for cataract surgery. Background Art

[0002] When performing surgery on a cataract patient's eyeball, the patient's eyelids need to be expanded to expose the patient's eyeball to facilitate surgery on the patient's eyeball, so an expansion support frame is needed.

[0003] However, the expansion stent requires the patient's eyelids to be expanded. When in use, the expansion stent is located on the patient's face, which makes it inconvenient to fix the expansion stent. The expansion stent also needs to be aligned with the patient's eyeball, which makes the operation difficult. Therefore, we propose an expansion stent for cataract surgery. Summary of the invention

[0004] The object of the present invention is to provide an expansion support frame for cataract surgery to solve the above-mentioned deficiencies in the technology.

[0005] The cam-shaped tire pressure gauge as claimed in claim 1, wherein the two lugs are connected along the longitudinal axis of the two support frames and the two lugs are connected along the longitudinal axis of the two support frames.

[0006] Preferably, a fixing sleeve is fixedly provided on one side outer wall of the two support plates through an opening, a first pneumatic push rod is fixedly provided on the inner wall of the fixing sleeve, an extrusion plate is fixedly provided on the output ends of the two first pneumatic push rods, and a sponge pad is fixedly provided on one side outer wall corresponding to the two extrusion plates.

[0007] Preferably, first rotating holes are opened on the outer walls at both ends of the bottom of the arc-shaped positioning plate, and second rotating holes are opened on the outer walls at both ends of the bottom of the support plate. The inner walls of the first rotating hole and the second rotating hole are interference-fitted with a rotating shaft.

[0008] Preferably, a vertically upward shifting rod is fixedly provided on the top outer wall of the arc-shaped slider, and the shifting rod is used to facilitate the arc-shaped slider to move on the outer wall of the arc-shaped positioning plate. A first threaded tube is fixedly provided on the top outer wall of the arc-shaped slider through an opening, and a first fastening bolt is screwed on the inner wall of the first threaded tube. Tightening the first fastening bolt facilitates fixing the arc-shaped slider on the outer wall of the arc-shaped positioning plate.

[0009] Preferably, a right-angle bracket is fixedly provided on the outer wall of one end of the two hinged plates away from each other, a double-layer limiting plate is fixedly provided on the bottom outer wall of the two right-angle brackets, a positioning sleeve is fixedly provided inside the double-layer limiting plate, a bearing is fixedly provided on the inner wall of the positioning sleeve, and an internally threaded sleeve is fixedly provided inside the other double-layer limiting plate.

[0010] Preferably, an externally threaded rotating rod is inserted into the inner wall of the bearing and the internally threaded sleeve, the inner ring of the bearing is fixedly connected to the outer wall of the externally threaded rotating rod, the inner wall of the internally threaded sleeve is threadedly connected to the outer wall of the externally threaded rotating rod, and a knob is fixedly provided on the outer wall of one end of the externally threaded rotating rod, and the externally threaded rotating rod is driven to rotate on the inner wall of the internally threaded sleeve by the knob, so that the two right-angle brackets can be opened.

[0011] Preferably, the arc-shaped eyelid expansion plate is made of 316L metal material.

[0012] Preferably, the top outer walls of the two positioning plates are provided with fixing holes, and the inner walls of the fixing holes are provided with matching bolts, which pass through the inner walls of the fixing holes and are screwed into designated positions, thereby facilitating the fixing of the present invention at the designated position.

[0013] The present invention also provides an operation step of an expansion support frame for cataract surgery:

[0014] S1: The present invention fixes the arc-shaped positioning plate to a designated position on the operating table by passing a bolt through the inner wall of the fixing hole, so that the arc-shaped positioning plate is located at the head position of the patient;

[0015] S2: Pushing out through the output shafts of the two first pneumatic push rods, the output shafts of the first pneumatic push rods drive the squeezing plate to squeeze the patient's head to prevent the patient's head from shaking during the operation;

[0016] S3: When performing surgery on a cataract patient, the arc positioning plate between the two support plates is rotated to move the arc positioning plate to the designated position on the top of the patient's head, the arc slider provided on the outer wall of the arc positioning plate is slid by the lever, and then the first fastening bolt is tightened to fix the arc slider at the designated position on the arc positioning plate, and then the length of the output shaft of the second pneumatic push rod is adjusted, and then the position of the arc eyelid expansion plate is conveniently adjusted by rotating the semi-arc positioning cover provided on the outer wall of the positioning ball, so as to facilitate the arc eyelid expansion plate to be aligned with the position of the patient's eyeball, and at this time, the second fastening bolt is tightened to fix the semi-arc positioning cover to the outer wall of the positioning ball;

[0017] S4: At this time, the patient's eyelids are peeled open, and two arc-shaped eyelid expansion plates are placed between the patient's eyelids. The bottom outer wall of the arc-shaped eyelid expansion plate contacts the patient's eyeball. At this time, the external threaded rotating rod is driven to rotate by rotating the knob. The external threaded rotating rod rotates on the inner wall of the internal threaded sleeve. The two hinged plates drive the two arc-shaped eyelid expansion plates to open, thereby expanding the patient's eyelids.

[0018] In summary, in the above technical solutions, the technical solutions provided by the present invention have the following technical effects and advantages:

[0019] By rotating the arc positioning plate between the two support plates, the arc positioning plate is moved to the designated position on the top of the patient's head, and the arc slider provided on the outer wall of the arc positioning plate is slided by the lever to fix the arc slider at the designated position on the arc positioning plate, and then the length of the output shaft of the second pneumatic push rod is adjusted, and then the semi-arc positioning cover provided on the outer wall of the rotating positioning ball is used to facilitate the position of the arc eyelid expansion plate to be adjusted, so that the arc eyelid expansion plate can be fixed at the designated position to expand the patient's eyelids. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of an expansion support frame for cataract surgery according to the present invention;

[0022] Figure 2 This is a schematic diagram of the structure of an arc-shaped positioning plate of an expansion support frame for cataract surgery according to the present invention;

[0023] Figure 3 This is a schematic diagram of the structure of an arc-shaped slider of an expansion support frame for cataract surgery according to the present invention;

[0024] Figure 4This is a schematic diagram of the structure of a semi-arc-shaped positioning cover of an expansion support frame for cataract surgery according to the present invention;

[0025] Figure 5 The present invention is a schematic diagram of the structure of an externally threaded rotating rod of an expansion support frame for cataract surgery.

[0026] Description of reference numerals:

[0027] 1 positioning plate, 2 support plate, 3 fixing sleeve, 4 first pneumatic push rod, 5 extrusion plate, 6 sponge pad, 7 fixing hole, 8 arc-shaped positioning plate, 9 arc-shaped slider, 10 first threaded tube, 11 first fastening bolt, 12 lever, 13 second pneumatic push rod, 14 positioning ball, 15 semi-arc-shaped positioning cover, 16 second threaded tube, 17 second fastening bolt, 18 positioning rod, 19 fixing block, 20 hinge plate, 21 right-angle bracket, 22 double-layer limiting plate, 23 positioning sleeve, 24 bearing, 25 internal threaded sleeve, 26 external threaded rotating rod, 27 knob, 28 connecting column, 29 arc-shaped eyelid expansion plate. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0029] Embodiment 1

[0030] Refer to the instruction manual Figure 1-5 , an expansion support frame for cataract surgery, comprising two positioning plates 1, the outer walls of one adjacent end of the two positioning plates 1 are fixed with a vertically upward supporting plate 2, one side corresponding to the top of the two supporting plates 2 is movably connected with an arc-shaped positioning plate 8, the outer wall of the arc-shaped positioning plate 8 is slidably connected with an arc-shaped sliding block 9, and the bottom outer wall of the arc-shaped sliding block 9 is fixed with a second pneumatic push rod 13 vertically downward, the output end of the second pneumatic push rod 13 is sleeved with a semi-arc-shaped positioning cover 15, one side outer wall of the semi-arc-shaped positioning cover 15 is fixed with a second threaded tube 16 through an opening, and the inner wall of the second threaded tube 16 is screwed with a second fastening bolt 17, the bottom outer wall of the semi-arc-shaped positioning cover 15 is fixed with a vertically downward positioning rod 18, the bottom outer wall of the positioning rod 18 is fixed with a fixing block 19, and the bottom outer wall of the fixing block 19 is movably connected with two hinged plates 20 through a rotating shaft, the outer walls of the two bottom ends of the two hinged plates 20 are fixed with connecting columns 28, and the outer walls of the bottom ends of the two connecting columns 28 are fixed with an arc-shaped eyelid expansion plate 29.

[0031] Embodiment 2

[0032] Based on the first embodiment, a fixing sleeve 3 is fixedly provided on one side outer wall of the two support plates 2 through an opening, a first pneumatic push rod 4 is fixedly provided on the inner wall of the fixing sleeve 3, an extrusion plate 5 is fixedly provided on the output end of the two first pneumatic push rods 4, a sponge pad 6 is fixedly provided on the outer wall on one side corresponding to the two extrusion plates 5, a first rotating hole is opened on the outer wall at both ends of the bottom of the arc-shaped positioning plate 8, a second rotating hole is opened on the outer wall at both ends of the bottom of the support plate 2, and a rotating shaft is interference fit between the inner walls of the first rotating hole and the second rotating hole.

[0033] Embodiment 3

[0034] Based on the first embodiment, a vertically upward shifting rod 12 is fixed on the top outer wall of the arc-shaped slider 9, and the shifting rod 12 is used to facilitate the arc-shaped slider 9 to move on the outer wall of the arc-shaped positioning plate 8. A first threaded tube 10 is fixed on the top outer wall of the arc-shaped slider 9 through an opening, and a first fastening bolt 11 is screwed on the inner wall of the first threaded tube 10. Tightening the first fastening bolt 11 facilitates fixing the arc-shaped slider 9 on the outer wall of the arc-shaped positioning plate 8. A right-angle bracket 21 is fixed on the outer wall of one end of the two hinged plates 20 away from each other, and a double-layer limit plate 22 is fixed on the bottom outer wall of the two right-angle brackets 21. A positioning sleeve 23 is fixedly provided inside the positioning plate 22, and a bearing 24 is fixedly provided on the inner wall of the positioning sleeve 23. An internally threaded sleeve 25 is fixedly provided inside the other double-layer limiting plate 22. An externally threaded rotating rod 26 is inserted into the inner wall of the bearing 24 and the internally threaded sleeve 25. The inner ring of the bearing 24 is fixedly connected to the outer wall of the externally threaded rotating rod 26. The inner wall of the internally threaded sleeve 25 is threadedly connected to the outer wall of the externally threaded rotating rod 26. A knob 27 is fixedly provided on the outer wall of one end of the externally threaded rotating rod 26. The knob 27 is used to drive the externally threaded rotating rod 26 to rotate on the inner wall of the internally threaded sleeve 25, so that the two right-angle brackets 21 can be opened.

[0035] Embodiment 4

[0036] Based on the first embodiment, the arc-shaped eyelid expansion plate 29 is made of 316L metal material, and the top outer walls of the two positioning plates 1 are provided with fixing holes 7. The inner walls of the fixing holes 7 are provided with matching bolts. The bolts pass through the inner walls of the fixing holes 7 and are screwed into the designated positions, so as to fix the present invention at the designated position.

[0037] Working principle of the present invention:

[0038] Refer to the instruction manual Figure 1-5The present invention fixes the arc-shaped positioning plate 8 to the designated position on the operating table by passing the bolts through the inner wall of the fixing hole 7, so that the arc-shaped positioning plate 8 is located at the patient's head position, and is pushed out by the output shafts of the two first pneumatic push rods 4. The output shafts of the first pneumatic push rods 4 drive the squeezing plate 5 to squeeze the patient's head to prevent the patient's head from shaking during the operation. When the cataract patient undergoes surgery, the arc-shaped positioning plate 8 is moved to the designated position on the top of the patient's head by rotating the arc-shaped positioning plate 8 between the two support plates 2, and the arc-shaped slider 9 provided on the outer wall of the arc-shaped positioning plate 8 is slid by the lever 12, and then the first fastening bolt 11 is tightened to fix the arc-shaped slider 9 at the designated position on the arc-shaped positioning plate 8, and then the second pneumatic push rod 1 is adjusted. 3 output shaft length, and then by rotating the semi-arc-shaped positioning cover 15 provided on the outer wall of the positioning ball 14, it is convenient to adjust the position of the arc-shaped eyelid expansion plate 29, so as to align the arc-shaped eyelid expansion plate 29 with the position of the patient's eyeball. At this time, the second fastening bolt 17 is tightened to fix the semi-arc-shaped positioning cover 15 on the outer wall of the positioning ball 14. At this time, the patient's eyelids are peeled open, and the two arc-shaped eyelid expansion plates 29 are located between the patient's eyelids. The bottom outer wall of the arc-shaped eyelid expansion plate 29 contacts the patient's eyeball. At this time, the external threaded rotating rod 26 is driven to rotate by rotating the knob 27. The external threaded rotating rod 26 rotates on the inner wall of the internal threaded sleeve 25, and the two hinged plates 20 drive the two arc-shaped eyelid expansion plates 29 to open, so as to expand the patient's eyelids.

[0039] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An expansion support frame for cataract surgery, comprising two positioning plates (1), characterized in that: A vertically upward supporting plate (2) is fixedly disposed on the outer wall of one end adjacent to the two positioning plates (1); a curved positioning plate (8) is movably connected to one side of the top of the two supporting plates (2); a curved sliding block (9) is slidably connected to the outer wall of the curved positioning plate (8); a vertically downward second pneumatic push rod (13) is fixedly disposed on the outer wall of the bottom of the curved sliding block (9); a semi-arc-shaped positioning cover (15) is sleeved on the output end of the second pneumatic push rod (13); a second threaded tube (13) is fixedly disposed on the outer wall of one side of the semi-arc-shaped positioning cover (15) through an opening. 6), the inner wall of the second threaded tube (16) is screwed with a second fastening bolt (17), the bottom outer wall of the semi-arc-shaped positioning cover (15) is fixed with a vertical downward positioning rod (18), the bottom outer wall of the positioning rod (18) is fixed with a fixing block (19), the bottom outer wall of the fixing block (19) is movably connected to two hinged plates (20) through a rotating shaft, the bottom outer walls of the two hinged plates (20) are fixed with connecting columns (28), and the bottom outer walls of one end of the two connecting columns (28) are fixed with an arc-shaped eyelid expansion plate (29).

2. The expandable support frame for cataract surgery according to claim 1, characterized in that: A fixing sleeve (3) is fixedly provided on one side outer wall of the two support plates (2) through an opening, a first pneumatic push rod (4) is fixedly provided on the inner wall of the fixing sleeve (3), an extrusion plate (5) is fixedly provided on the output ends of the two first pneumatic push rods (4), and a sponge pad (6) is fixedly provided on one side outer wall corresponding to the two extrusion plates (5).

3. The expandable support frame for cataract surgery according to claim 1, characterized in that: The outer walls at both ends of the bottom of the arc-shaped positioning plate (8) are provided with first rotating holes, and the outer walls at both ends of the bottom of the support plate (2) are provided with second rotating holes. The inner walls of the first rotating hole and the second rotating hole are interference-fitted with a rotating shaft.

4. The expandable support frame for cataract surgery according to claim 1, characterized in that: A vertically upward shifting rod (12) is fixedly provided on the top outer wall of the arc-shaped slider (9), a first threaded tube (10) is fixedly provided on the top outer wall of the arc-shaped slider (9) through an opening, and a first fastening bolt (11) is screwed onto the inner wall of the first threaded tube (10).

5. The expandable support frame for cataract surgery according to claim 1, characterized in that: A right-angle bracket (21) is fixedly provided on the outer wall of one end of the two hinged plates (20) away from each other, a double-layer limit plate (22) is fixedly provided on the outer wall of the bottom of the two right-angle brackets (21), a positioning sleeve (23) is fixedly provided inside the double-layer limit plate (22), a bearing (24) is fixedly provided on the inner wall of the positioning sleeve (23), and an internal threaded sleeve (25) is fixedly provided inside the other double-layer limit plate (22).

6. The expandable support frame for cataract surgery according to claim 5, characterized in that: An externally threaded rotating rod (26) is inserted between the inner wall of the bearing (24) and the inner wall of the internally threaded sleeve (25); the inner ring of the bearing (24) is fixedly connected to the outer wall of the externally threaded rotating rod (26); the inner wall of the internally threaded sleeve (25) is threadedly connected to the outer wall of the externally threaded rotating rod (26); and a knob (27) is fixedly provided on the outer wall of one end of the externally threaded rotating rod (26).

7. The expandable support frame for cataract surgery according to claim 1, characterized in that: The arc-shaped eyelid expansion plate (29) is made of 316L metal material.

8. The expandable support frame for cataract surgery according to claim 1, characterized in that: The top outer walls of the two positioning plates (1) are provided with fixing holes (7), and the inner walls of the fixing holes (7) are provided with matching bolts.

9. An expandable support frame for cataract surgery according to any one of claims 1 to 8, characterized in that: The following steps are also included: Step 1: The present invention fixes the arc-shaped positioning plate (8) at a designated position on the operating table by passing a bolt through the inner wall of the fixing hole (7), so that the arc-shaped positioning plate (8) is located at the head position of the patient; Step 2: The output shafts of the two first pneumatic push rods (4) are used to push out the patient's head, and the output shafts of the first pneumatic push rods (4) drive the squeezing plate (5) to squeeze the patient's head to prevent the patient's head from shaking during the operation; Step 3: When performing surgery on a cataract patient, the arc-shaped positioning plate (8) is rotated between the two support plates (2) to move the arc-shaped positioning plate (8) to a designated position on the top of the patient's head, and the arc-shaped slider (9) provided on the outer wall of the arc-shaped positioning plate (8) is slid by the lever (12), and then the first fastening bolt (11) is tightened to fix the arc-shaped slider (9) at the designated position on the arc-shaped positioning plate (8), and then the length of the output shaft of the second pneumatic push rod (13) is adjusted, and then the position of the arc-shaped eyelid expansion plate (29) is conveniently adjusted by rotating the semi-arc-shaped positioning cover (15) provided on the outer wall of the positioning ball (14), so as to facilitate the arc-shaped eyelid expansion plate (29) to be aligned with the position of the patient's eyeball, and then the second fastening bolt (17) is tightened to fix the semi-arc-shaped positioning cover (15) on the outer wall of the positioning ball (14); Step 4: At this time, the patient's eyelids are peeled open, and the two arc-shaped eyelid expansion plates (29) are located between the patient's eyelids. The bottom outer wall of the arc-shaped eyelid expansion plate (29) contacts the patient's eyeball. At this time, the external threaded rotating rod (26) is driven to rotate by rotating the knob (27). The external threaded rotating rod (26) rotates on the inner wall of the internal threaded sleeve (25), and the two hinged plates (20) drive the two arc-shaped eyelid expansion plates (29) to open, thereby expanding the patient's eyelids.

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