Multi-gap operation distraction device for interior of eye socket

Abstract

The invention discloses a multi-gap operation dilator for the interior of an eye socket, and belongs to the field of medical instruments, the multi-gap operation dilator comprises two arc-shaped mounting rods and further comprises a connecting rod, the connecting rod is arranged between the two arc-shaped mounting rods and is connected with the two arc-shaped mounting rods through bolts, one side of the bottom surface of each arc-shaped mounting rod is provided with an arc-shaped sliding groove, and the arc-shaped sliding grooves are communicated with the arc-shaped mounting rods through bolts; an arc-shaped fixing rod is fixed to the inner wall of the arc-shaped sliding groove. Through cooperation of the first shaping hose and the brain spatula, the brain spatula can be adjusted at any angle, so that a gap in an orbit can be conveniently expanded, the expanded gap is relatively stable, secondary injury to a patient is avoided, through arrangement of the movable positioning assembly, the brain spatula can move more flexibly on the expander, and the brain spatula is more convenient to use. The adjusting and opening range of the brain spatula is further expanded, convenience is provided for surgery operation of doctors, and the doctors can obtain better illumination during operation through the arrangement of the illumination unit.

Description

Technical Field

[0001] The invention belongs to the technical field of medical devices, and in particular relates to a multi-gap surgical dilator used inside an orbit. Background Art

[0002] The eye socket is a bone cavity similar to a four-sided cone that accommodates the eyeball and other orbital contents. The base is forward and the cone is backward and inward. The diameter of the orbital opening is about 3.5-4cm, and the depth of the orbit is about 4-5cm. The deeper the orbit is, the narrower the bone cavity is. Important structures such as the optic nerve and ophthalmic artery pass through the narrowest orbital apex. According to the anatomical structure of the soft tissue in the orbit, the eye socket can be divided into four spaces: the subperiosteal space, the extramuscular cone space, the intramuscular cone space, and the space between the fascia of the eye and the sclera. The subperiosteal space is located between the orbital periosteum and the orbital bone; the extramuscular cone space is located between the orbital periosteum and the muscular cone; and the intramuscular cone space is located between the muscular cone and the fascia of the eye.

[0003] The expander for intraorbital surgery is a medical device that is usually used as an alternative to the brain pressure plate commonly used in neurosurgery; it is a common tool used in orbital surgery to maintain the stable position of the soft tissue in the orbit during surgery and to expand the various gaps required for intraorbital surgery so that doctors can better perform surgical operations. It can provide a better field of view and operating space, helping doctors perform accurate and safe operations.

[0004] However, the existing expanders still have the following problems when used: the size and shape of the eye socket require the surgeon and the assistant to operate simultaneously in an extremely narrow space, and the hands and instruments are prone to collide or block each other during operation, affecting the stability and flexibility of the surgical instruments; the force used to expand the orbital contents is uncontrollable, and when the force is small, it cannot be fully expanded, and it is difficult to effectively fix the expander itself, while when the force is large, the pressure in the orbit will be too high, damaging important nerves and eye blood supply; at the same time, during the operation, the doctor's hands will block the surgical lighting and the surgeon's field of vision, causing inconvenience to the operation; in addition, unskilled assistants cannot understand the surgeon's requirements for the position and depth of the expander, and cannot expand a suitable surgical space for the surgeon, and repeated adjustments are required, affecting the progress of the operation; and for hospitals with fewer staff and ophthalmology departments that are accustomed to one or even no assistants, the expansion of multiple brain pressure plates in different directions during intraorbital surgery requires multiple surgical assistants, which also affects the promotion of intraorbital surgery in grassroots hospitals. Summary of the invention

[0005] The object of the present invention is to provide a multi-gap surgical dilator for the interior of the eye socket to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: a multi-gap surgical opener for the inner part of the orbit, comprising two arc-shaped mounting rods, and further comprising: A connecting rod, the connecting rod is arranged between the two arc-shaped mounting rods, the connecting rod and the two arc-shaped mounting rods are connected by bolts, an arc-shaped slide groove is provided on one side of the bottom surface of the two arc-shaped mounting rods, an arc-shaped fixing rod is fixed on the inner wall of the arc-shaped slide groove, a sliding seat is provided on the outer surface of the arc-shaped fixing rod, a limit card groove is provided on the inner top wall of the arc-shaped slide groove, a limit card block matching with the limit card groove is fixed on the top surface of the sliding seat, an L-shaped fixing plate is fixed on the outer side of the sliding seat, a first shaping hose is threadedly connected to one side of the L-shaped fixing plate, a brain pressure plate is threadedly installed on the end of the shaping hose, and a movable positioning component is provided on the surface of the L-shaped fixing plate; An arc-shaped guide rail is fixed to the top surface of one of the arc-shaped mounting rods, a lighting unit matching the brain pressure plate is arranged on the surface of the arc-shaped guide rail, and a supporting and fixing unit is arranged on the bottom surface of one of the arc-shaped mounting rods.

[0007] It should be noted that the mobile positioning component includes: A fixing block, the fixing block is fixed to one side of the L-shaped fixing plate, a plug rod is movably penetrated through the surface of the L-shaped fixing plate corresponding to the fixing block, a stopper is arranged on the outer surface of the plug rod corresponding to the inner fixed sleeve of the fixing block, a spring is sleeved on the outer surface of the plug rod, one end of the spring is fixed to the stopper, and the other end of the spring is fixed to the inner wall of the fixing block; A plurality of jacks are provided and evenly opened on the outer surface of the arc-shaped mounting rod. The insertion rod is plugged into the jacks, and a pull ring is fixed at the end of the insertion rod.

[0008] It is further worth noting that the lighting unit comprises: An arc-shaped limit rod, the arc-shaped limit rod is fixed to the inner side of the arc-shaped guide rail, a moving block is slidably sleeved on the outer surface of the arc-shaped limit rod, a connecting plate is fixed to the outer side of the moving block, a second shaping hose is threadedly connected to the top surface of the connecting plate, and a lighting lamp is threadedly installed on the end of the second shaping hose; An arc-shaped groove is provided on the top surface of the arc-shaped guide rail, a clamping plate is fixed on one side of the moving block, an end of the clamping plate is slidably connected to the arc-shaped groove, and a limiting component is provided on one side of the connecting plate.

[0009] It should be further explained that the limiting assembly includes a positioning screw with threads penetrating the surface of the connecting plate, and a stop block is fixed to one end of the positioning screw, and the stop block abuts against the outer surface of the arc guide rail.

[0010] As a preferred implementation, the supporting and fixing unit comprises: Rectangular blocks, two of which are respectively fixed to the bottom surfaces of the two arc-shaped mounting rods, a card frame is provided on the periphery of one of the rectangular blocks, the card frame is connected to the rectangular block by bolts, and an electric telescopic rod is fixedly installed on the outer surface of the card frame; A lifting assembly is arranged at the end of the electric telescopic rod, and is used to adjust the height of the arc-shaped mounting rod. A clamping assembly is arranged on the outer surface of the lifting assembly, and the clamping assembly is located below the lifting assembly and is used to fix the arc-shaped mounting rod.

[0011] As a preferred embodiment, the lifting assembly includes a movable rod fixed to the end of the electric telescopic rod, the outer surface of the movable rod is slidably sleeved with a fixing tube, one side of the movable rod is evenly provided with a plurality of limiting holes, and the outer surface of the fixing tube corresponds to the limiting holes and is threaded with a limiting screw.

[0012] As a preferred embodiment, the clamping assembly includes a U-shaped support plate fixed under the fixed cylinder, the outer surface of the fixed cylinder is slidingly sleeved with a U-shaped clamping plate, two mounting blocks are fixed on one side of the fixed cylinder, a threaded rod is rotatably connected between the two mounting blocks, and the threaded rod threadably penetrates the U-shaped clamping plate.

[0013] As a preferred implementation, a turning handle is fixed to the top end of the threaded rod, and the movable rod is connected to the end of the electric telescopic rod by bolts.

[0014] Compared with the prior art, the multi-gap surgical opener for the orbit provided by the present invention has at least the following beneficial effects: (1) Through the cooperation of the first shaped hose and the brain pressure plate, the brain pressure plate can be adjusted to any angle, thereby facilitating the expansion of the intraorbital space. After expansion, the pressure plate is relatively stable and will not cause secondary damage to the patient. Through the setting of the mobile positioning component, the brain pressure plate has more flexible movement on the expander, further improving the adjustment and expansion range of the brain pressure plate, providing convenience for the doctor's surgical operation. Through the setting of the lighting unit, the doctor can get better lighting during the operation.

[0015] (2) By providing the supporting and fixing unit, the whole stretcher can be fixed more conveniently, thereby maintaining the stability of the stretcher during operation. At the same time, the stretcher can be flipped to facilitate operation on the patient's left and right eyes, thereby improving the convenience of using the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is another perspective structural schematic diagram of the present invention; Figure 3It is a schematic diagram of the structure of the clamping assembly of the present invention; Figure 4 It is a schematic diagram of the structure of the mobile positioning component of the present invention; Figure 5 It is a schematic diagram of the structure of the lighting unit of the present invention; Figure 6 It is a schematic diagram of the structure of the limit assembly of the present invention; Figure 7 It is a schematic diagram of the local structure of the present invention.

[0017] In the figure: 1, arc-shaped mounting rod; 2, connecting rod; 3, arc-shaped slide groove; 4, arc-shaped fixing rod; 5, slide seat; 6, limit slot; 7, limit block; 8, L-shaped fixing plate; 9, first shaping hose; 10, brain pressure plate; 11, mobile positioning assembly; 111, fixing block; 112, plug rod; 113, stopper; 114, spring; 115, jack; 116, pull ring; 12, arc-shaped guide rail; 13, lighting unit; 131, arc-shaped limit rod; 132, moving block; 133, connecting plate; 134, second shaping hose; 13 5. Lighting lamp; 136. Arc groove; 137. Card plate; 138. Limiting assembly; 1381. Positioning screw; 1382. Stop block; 14. Support and fixing unit; 141. Rectangular block; 142. Card frame; 143. Electric telescopic rod; 144. Lifting assembly; 1441. Movable rod; 1442. Fixed cylinder; 1443. Limiting hole; 1444. Limiting screw; 145. Clamping assembly; 1451. U-shaped support plate; 1452. U-shaped clamping plate; 1453. Mounting block; 1454. Threaded rod; 15. Turning handle. DETAILED DESCRIPTION

[0018] The present invention will be further described below in conjunction with the embodiments.

[0019] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, rather than all the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present disclosure.

[0020] Unless otherwise defined, the technical or scientific terms used in the present disclosure shall have the usual meanings understood by persons with ordinary skills in the field to which the present disclosure belongs. The words "including" or "comprising" and the like used in the present disclosure mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. The words "connect" or "connected" and the like are not limited to physical or mechanical connections, but may also include electrical connections, whether direct or indirect. "Up", "down", "left", "right", etc. are only used to indicate relative position relationships. When the absolute position of the object being described changes, the relative position relationship may also change accordingly.

[0021] Embodiment 1: See also Figure 1-7 The present invention provides a multi-gap surgical opener for use inside an orbit, comprising two arc-shaped mounting rods 1, and further comprising: A connecting rod 2, the connecting rod 2 is arranged between the two arc-shaped mounting rods 1, the connecting rod 2 and the two arc-shaped mounting rods 1 are connected by bolts, an arc-shaped slide groove 3 is provided on one side of the bottom surface of the two arc-shaped mounting rods 1, an arc-shaped fixing rod 4 is fixed on the inner wall of the arc-shaped slide groove 3, a sliding seat 5 is slidingly sleeved on the outer surface of the arc-shaped fixing rod 4, a limit card groove 6 is provided on the inner top wall of the arc-shaped slide groove 3, a limit card block 7 matching the limit card groove 6 is fixed on the top surface of the sliding seat 5, an L-shaped fixing plate 8 is fixed on the outer side of the sliding seat 5, a first shaping hose 9 is threadedly connected to one side of the L-shaped fixing plate 8, a brain pressure plate 10 is threadedly installed on the end of the shaping hose, and a movable positioning component 11 is provided on the surface of the L-shaped fixing plate 8; The arc-shaped guide rail 12 is fixed to the top surface of one of the arc-shaped mounting rods 1 , and the surface of the arc-shaped guide rail 12 is provided with a lighting unit 13 matching the brain pressure plate 10 , and the bottom surface of one of the arc-shaped mounting rods 1 is provided with a supporting fixing unit 14 .

[0022] It is worth mentioning that the two arc-shaped mounting rods 1 fixed by bolt connection make the overall disassembly and assembly of the device more convenient and improve the storage capacity; before the operation, the medical staff adjusts the position of the first shaping hose 9 so that the brain pressure plate 10 is placed in the required gap of the eye socket, thereby opening it and making it convenient for the doctor to perform the operation; a gap is left between the ends of the two arc-shaped mounting rods 1 for the surgical instruments to enter and exit; when a brain pressure plate 10 of different specifications is needed, the brain pressure plate 10 on the first shaping hose 9 can be unscrewed for replacement.

[0023] Further Figure 1 , Figure 2 and Figure 4 As shown, it is worth noting that the mobile positioning component 11 includes: A fixing block 111 is fixed to one side of the L-shaped fixing plate 8. A plug rod 112 is movably inserted through the surface of the L-shaped fixing plate 8 corresponding to the fixing block 111. A stopper 113 is fixedly sleeved inside the fixing block 111 on the outer surface of the plug rod 112 corresponding to the inner fixed sleeve of the fixing block 111. A spring 114 is sleeved on the outer surface of the plug rod 112. One end of the spring 114 is fixed to the stopper 113, and the other end of the spring 114 is fixed to the inner wall of the fixing block 111. The plug hole 115 is provided in multiple numbers and is evenly opened on the outer surface of the arc-shaped mounting rod 1 . The plug rod 112 is plugged into the plug hole 115 , and a pull ring 116 is fixed to the end of the plug rod 112 .

[0024] It is worth noting that the pull ring 116 facilitates the movement of the insertion rod 112; by moving the positioning assembly 11, the position of the brain pressure plate 10 is further adjusted, so that the position of the brain pressure plate 10 is more suitable for the doctor's surgical operation.

[0025] Further Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 7 As shown, it is worth noting that the lighting unit 13 includes: The arc-shaped limiting rod 131 is fixed to the inner side of the arc-shaped guide rail 12. The outer surface of the arc-shaped limiting rod 131 is slidably sleeved with a moving block 132. The outer side of the moving block 132 is fixed with a connecting plate 133. The top surface of the connecting plate 133 is threadedly connected with a second shaping hose 134. The end of the second shaping hose 134 is threadedly installed with a lighting lamp 135. The arc groove 136 is opened on the top surface of the arc guide rail 12 , a clamping plate 137 is fixed on one side of the moving block 132 , the end of the clamping plate 137 is slidably connected to the arc groove 136 , and a limiting component 138 is set on one side of the connecting plate 133 .

[0026] It is worth noting that, by setting the lighting lamp 135 and the second shaping hose 134, the height and position of the lighting lamp 135 can be adjusted arbitrarily so as to provide lighting for the doctor during the operation, and the lighting lamp 135 can be unscrewed for replacement.

[0027] Further Figure 5 and Figure 6 As shown, it is worth explaining in detail that the limiting assembly 138 includes a positioning screw 1381 that is threaded through the surface of the connecting plate 133 , and a stop block 1382 is fixed to one end of the positioning screw 1381 , and the stop block 1382 abuts against the outer surface of the arc guide rail 12 .

[0028] It is worth noting that after the moving block 132 is adjusted to a position in the arc guide rail 12 , the positioning screw 1381 is rotated so that the stop block 1382 is pressed against the outer surface of the arc guide rail 12 , thereby limiting the moving block 132 and maintaining the stability of the lighting lamp 135 .

[0029] Embodiment 2: Based on the first embodiment, according to Figure 1 , Figure 2 and Figure 3 As shown, it is worth to explain in detail that the supporting and fixing unit 14 includes: Rectangular blocks 141, two rectangular blocks 141 are provided and respectively fixed to the bottom surfaces of the two arc-shaped mounting rods 1, a card frame 142 is sleeved on the periphery of one of the rectangular blocks 141, the card frame 142 is connected to the rectangular block 141 by bolts, and an electric telescopic rod 143 is fixedly installed on the outer surface of the card frame 142; A lifting assembly 144 is provided at the end of the electric telescopic rod 143. The lifting assembly 144 is used to adjust the height of the arc-shaped mounting rod 1. A clamping assembly 145 is provided on the outer surface of the lifting assembly 144. The clamping assembly 145 is located below the lifting assembly 144 and is used to fix the arc-shaped mounting rod 1.

[0030] It is worth noting that, since rectangular blocks 141 are fixed to the bottom surfaces of the two arc-shaped mounting rods 1, the supporting and fixing units 14 can be installed on the rectangular blocks 141 to support the stretcher as a whole, so that the stretcher can be flipped, thereby facilitating operation on the patient's left and right eyes and improving the convenience of using the device.

[0031] Further Figure 1 , Figure 2 and Figure 3 As shown, it is worth explaining in detail that the lifting assembly 144 includes a movable rod 1441 fixed to the end of the electric telescopic rod 143, and a fixed cylinder 1442 is slidably sleeved on the outer surface of the movable rod 1441. A plurality of limiting holes 1443 are evenly opened on one side of the movable rod 1441, and a limiting screw 1444 is threadedly penetrated through the limiting holes 1443 corresponding to the outer surface of the fixed cylinder 1442.

[0032] Further Figure 1 , Figure 2 and Figure 3 As shown, it is worth explaining in detail that the clamping assembly 145 includes a U-shaped support plate 1451 fixed under the fixed cylinder 1442, the outer surface of the fixed cylinder 1442 is slidably sleeved with a U-shaped clamping plate 1452, two mounting blocks 1453 are fixed on one side of the fixed cylinder 1442, and a threaded rod 1454 is rotatably connected between the two mounting blocks 1453, and the threaded rod 1454 threads through the U-shaped clamping plate 1452.

[0033] Further Figure 2 As shown, it is worth explaining in detail that a turning handle 15 is fixed to the top of the threaded rod 1454, and the movable rod 1441 is connected to the end of the electric telescopic rod 143 by bolts. The turning handle 15 facilitates the rotation of the threaded rod 1454, and the movable rod 1441 is installed on the end of the electric telescopic rod 143 by bolts, so that the supporting and fixing unit 14 has better disassembly and assembly, and also facilitates the storage of the spreader.

[0034] This solution has the following working process: first, fix the spreader on the operating table where the patient lies, determine the eye to be operated on, so that the gap of the spreader faces outward, so as to ensure the entry and exit of surgical instruments during the doctor's operation. During installation, install the card frame 142 on the rectangular block 141, and then fix the support and fixing unit 14 on the edge of the operating table on the patient's head through the U-shaped support plate 1451 and the U-shaped clamping plate 1452. By turning the handle 15, the threaded rod 1454 drives the U-shaped clamping plate 1452 to move, so as to clamp the edge of the operating table. After fixing, the height of the spreader is adjusted by pulling the movable rod 1441. After adjusting to the appropriate position, the limit screw 1444 is turned to insert its end into the limit hole 1443, so as to limit and fix the movable rod 1441. After being fixed, the two arc-shaped mounting rods 1 are pushed to move above the patient's eyes by the electric telescopic rod 143, and then the position of the brain pressure plate 10 is adjusted by pulling the L-shaped fixing plate 8. During the adjustment process, the L-shaped fixing plate 8 drives the slide 5 to slide on the arc-shaped fixing rod 4, and the limiting card block 7 slides in the limiting card slot 6 to maintain the stability of the movement of the slide 5. After being adjusted, under the elastic force of the spring 114, the insertion rod 112 is pushed to be inserted into the insertion hole 115, so as to limit the L-shaped fixing plate 8. Then the medical staff pulls the first shaping hose 9 to place the brain pressure plate 10 in the required gap of the eye socket, thereby It is opened for the doctor to perform surgery. By pulling the second shaping hose 134, the lighting lamp 135 is aligned with the surgical position, and then the lighting lamp 135 is illuminated. The connecting plate 133 can also be moved to make the moving block 132 slide on the arc-shaped limiting rod 131. At the same time, the moving block 132 drives the clamping plate 137 to slide on the arc-shaped groove 136 to keep the connecting plate 133 stable when sliding. Then, by rotating the positioning screw 1381, the abutment block 1382 abuts on the arc-shaped guide rail 12, thereby limiting the connecting plate 133 and increasing the movement and adjustment range of the lighting lamp 135.

[0035] The electric telescopic rod 143 and the lighting lamp 135 can be purchased from the market and equipped with a separate power supply, which is a mature technology in this field and has been fully disclosed, so they are not repeated in the specification.

[0036] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art. The general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A multi-space surgical opener for use in an orbit, comprising two arc-shaped mounting rods (1), characterized in that: Also includes: A connecting rod (2), the connecting rod (2) being arranged between the two arc-shaped mounting rods (1), the connecting rod (2) and the two arc-shaped mounting rods (1) being connected by bolts, an arc-shaped slide groove (3) being provided on one side of the bottom surface of the two arc-shaped mounting rods (1), an arc-shaped fixing rod (4) being fixed on the inner wall of the arc-shaped slide groove (3), a sliding seat (5) being provided on the outer surface of the arc-shaped fixing rod (4), a limit card groove (6) being provided on the inner top wall of the arc-shaped slide groove (3), a limit card block (7) matching the limit card groove (6) being fixed on the top surface of the sliding seat (5), an L-shaped fixing plate (8) being fixed on the outer side of the sliding seat (5), a first shaping hose (9) being threadedly connected to one side of the L-shaped fixing plate (8), a brain pressure plate (10) being threadedly installed on the end of the shaping hose, and a movable positioning component (11) being provided on the surface of the L-shaped fixing plate (8); An arc-shaped guide rail (12) is fixed to the top surface of one of the arc-shaped mounting rods (1), a lighting unit (13) matching the brain pressure plate (10) is arranged on the surface of the arc-shaped guide rail (12), and a supporting fixing unit (14) is arranged on the bottom surface of one of the arc-shaped mounting rods (1).

2. A multi-space surgical dilator for use in the orbit according to claim 1, characterized in that: The mobile positioning component (11) comprises: A fixing block (111), the fixing block (111) being fixed to one side of an L-shaped fixing plate (8), a plug rod (112) being movably penetrated through a surface of the L-shaped fixing plate (8) corresponding to the fixing block (111), a stopper (113) being provided on an outer surface of the plug rod (112) corresponding to an inner fixed sleeve of the fixing block (111), a spring (114) being sleeved on the outer surface of the plug rod (112), one end of the spring (114) being fixed to the stopper (113), and the other end of the spring (114) being fixed to an inner wall of the fixing block (111); A plurality of plug holes (115) are provided and are evenly opened on the outer surface of the arc-shaped mounting rod (1); the insertion rod (112) is plugged into the plug holes (115); and a pull ring (116) is fixed to the end of the insertion rod (112).

3. A multi-space surgical dilator for use in the orbit according to claim 2, characterized in that: The lighting unit (13) comprises: An arc-shaped limiting rod (131), the arc-shaped limiting rod (131) is fixed to the inner side of the arc-shaped guide rail (12), a moving block (132) is slidably sleeved on the outer surface of the arc-shaped limiting rod (131), a connecting plate (133) is fixed to the outer side of the moving block (132), a second shaping hose (134) is threadedly connected to the top surface of the connecting plate (133), and a lighting lamp (135) is threadedly mounted on the end of the second shaping hose (134); An arc-shaped groove (136) is provided on the top surface of the arc-shaped guide rail (12); a clamping plate (137) is fixed on one side of the moving block (132); an end of the clamping plate (137) is slidably connected to the arc-shaped groove (136); and a limiting component (138) is provided on one side of the connecting plate (133).

4. A multi-space surgical dilator for use in the orbit according to claim 3, characterized in that: The limiting assembly (138) comprises a positioning screw (1381) threadedly penetrating the surface of the connecting plate (133); a stop block (1382) is fixed to one end of the positioning screw (1381); the stop block (1382) abuts against the outer surface of the arc-shaped guide rail (12).

5. The multi-space surgical dilator for use in the orbit according to claim 1, characterized in that: The supporting and fixing unit (14) comprises: Rectangular blocks (141), two rectangular blocks (141) are provided and are respectively fixed to the bottom surfaces of two arc-shaped mounting rods (1), a clamping frame (142) is sleeved on the periphery of one of the rectangular blocks (141), the clamping frame (142) is connected to the rectangular block (141) by bolts, and an electric telescopic rod (143) is fixedly mounted on the outer surface of the clamping frame (142); A lifting component (144) is provided at the end of the electric telescopic rod (143), and is used to adjust the height of the arc-shaped mounting rod (1) through the lifting component (144). A clamping component (145) is provided on the outer surface of the lifting component (144). The clamping component (145) is located below the lifting component (144) and is used to fix the arc-shaped mounting rod (1).

6. A multi-space surgical dilator for use in the orbit according to claim 5, characterized in that: The lifting assembly (144) comprises a movable rod (1441) fixed to the end of the electric telescopic rod (143); a fixing tube (1442) is slidably sleeved on the outer surface of the movable rod (1441); a plurality of limiting holes (1443) are evenly arranged on one side of the movable rod (1441); and a limiting screw (1444) is threadedly penetrated through the outer surface of the fixing tube (1442) corresponding to the limiting holes (1443).

7. A multi-space surgical dilator for use in an orbit according to claim 6, characterized in that: The clamping assembly (145) comprises a U-shaped support plate (1451) fixed below the fixed cylinder (1442); a U-shaped clamping plate (1452) is slidably sleeved on the outer surface of the fixed cylinder (1442); two mounting blocks (1453) are fixed on one side of the fixed cylinder (1442); a threaded rod (1454) is rotatably connected between the two mounting blocks (1453); and the threaded rod (1454) is threadedly penetrated through the U-shaped clamping plate (1452).

8. The multi-space surgical dilator for use in the orbit according to claim 7, characterized in that: A turning handle (15) is fixed to the top end of the threaded rod (1454), and the movable rod (1441) is connected to the end of the electric telescopic rod (143) via bolts.

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