A prone position device for facilitating postoperative retinal reattachment in ocular fundus diseases

Abstract

The application relates to the technical field of medical devices, and discloses a prone device beneficial to retinal repositioning after fundus disease operation, which comprises a sliding clamping mechanism and a universal adjusting support mechanism, and the structure comprises a hemispherical shell capable of being fixedly installed on the surface of a fixing structure and internally provided with a hollow structure, a hollow sphere capable of rotating and installed in the hemispherical shell, and an arc-shaped fixing plate capable of being fixedly installed in the middle part of a horizontal sliding rod and arranged at the top of the hollow sphere. The prone device beneficial to retinal repositioning after fundus disease operation can slide and clamp the head of a patient, thereby realizing the fixation of the head of the patient. In addition, the device can adjust the angle of the head of the patient, the angle adjustment is an adjustment in a three-dimensional space, and the device has the characteristics of wide adjustment range, thereby improving the practicability of the device.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a prone device that facilitates retinal repositioning after retinal surgery for fundus diseases. Background Technology

[0002] Currently, headrests are commonly used in clinical practice. Ordinary pillows, due to their lack of restraint on the head, are prone to head deviation, failing to provide effective support and fixation for the patient's head, and thus cannot maintain the correct prone position, reducing their practicality.

[0003] To this end, Chinese Patent Publication No. CN217938575U discloses a "prone device for retinal repositioning after fundus disease surgery," the main structure of which includes a base plate, one upper end of which is fixedly connected to the lower end of a rectangular sleeve, and a set screw threaded to the upper end of one side of the rectangular sleeve. A rectangular guide rod is provided inside the rectangular sleeve, and a set of evenly arranged circular holes are provided on the rectangular guide rod. The upper side of the rectangular guide rod is fixedly connected to the lower side of a T-shaped rod, and the two ends of the T-shaped rod are respectively hinged to the two sides of a U-shaped block. The upper side of the U-shaped block is fixedly connected to the lower side of a placement plate, and a screw groove is provided in the middle of the placement plate. The slot contains two sliders. This prone repositioning device for retinal repositioning after fundus disease surgery can adjust the position of the placement plate according to the patient's head position, moving the placement plate to a suitable position for the patient's head. The set screw is screwed in and inserted into a corresponding round hole to fix the rectangular guide rod, preventing the device from sliding down during use. At the same time, the knob can be turned according to the width of the patient's face, so that the two sliders can move the corresponding arc-shaped clamping plates closer to each other through the corresponding connecting rods, placing the patient's cheeks on the two arc-shaped clamping plates. The patient's head posture can also be adjusted as needed.

[0004] However, in actual use, the aforementioned prone repositioning device for retinal repositioning after fundus disease surgery has a very narrow adjustment range and poor practicality because the connection between the supporting components is a pin connection. This means that the adjustment angle of the patient's face is limited to the change between the vertical and horizontal planes. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a prone device that facilitates retinal repositioning after retinal surgery for fundus diseases. This device can slide and clamp the patient's head, thereby fixing it in place. Furthermore, the device can adjust the angle of the patient's head in three-dimensional space, offering a wide adjustment range and thus improving the device's practicality and solving the aforementioned technical problems.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a prone device for facilitating retinal repositioning after fundus disease surgery, comprising a sliding clamping mechanism, the structure of which includes two horizontally balanced sliding rods, two horizontal sliders that can slide along the axial direction of the horizontal sliding rods, an arc-shaped clamping plate installed directly above the horizontal sliders and movable with the horizontal sliders, and silicone pads installed on the clamping surface of the arc-shaped clamping plate and capable of clamping both sides of the patient's head; and a universal adjustable support mechanism, the structure of which includes a hemispherical shell that can be fixedly installed on the fixed structural surface and has a hollow internal structure, a hollow sphere installed inside the hemispherical shell and capable of rotation, and an arc-shaped fixing plate disposed on the top of the hollow sphere and fixedly installed in the middle of the horizontal sliding rods.

[0007] Preferably, the sliding clamping mechanism further includes a limiting connecting plate fixedly installed at the ends of the two horizontal sliding rods. The interior of the horizontal slider is provided with two sliding holes that can slide along the horizontal sliding rods. The two horizontal sliders are respectively provided with a No. 1 connecting plate at the middle of their opposite ends. The upper surface of each horizontal slider is provided with a longitudinal support block that moves with the horizontal slider. An arc-shaped clamping plate is installed on the top of each longitudinal support block. A silicone pad is installed on the concave surface of each arc-shaped clamping plate.

[0008] Preferably, the cross-sectional shape of the sliding hole is consistent with the cross-sectional shape of the horizontal sliding rod, both being polygonal structures, and the structural dimensions of the cross-sectional shape of the sliding hole match the structural dimensions of the cross-sectional shape of the horizontal sliding rod.

[0009] Preferably, the universal adjustment support mechanism further includes a second connecting plate integrally disposed at the bottom of the hemispherical shell. The interior of the hemispherical shell is provided with a spherical placement cavity with an open top. The bottom of the spherical placement cavity is provided with a fan-shaped embedding groove. A rotatable hollow sphere is placed inside the spherical placement cavity. A fan-shaped locking pad that generates frictional resistance to the hollow sphere is embedded in the fan-shaped embedding groove. The top of the hollow sphere is provided with a support rod integrally disposed therewith. An arc-shaped fixing plate is fixedly installed on the top of the support rod. The arc-shaped fixing plate is provided with two rod fixing holes fixedly installed at the middle of the horizontal slide rod.

[0010] Preferably, the structural radius of the spherical placement cavity is adapted to the structural radius of the hollow sphere, and the depth of the spherical placement cavity is greater than the structural radius of the hollow sphere and less than the structural diameter of the hollow sphere.

[0011] Preferably, the frictional resistance formed by the sector-shaped locking pad on the hollow sphere is sufficient to keep the arc-shaped clamping plate stable during operation.

[0012] Preferably, it also includes a rotary drive mechanism, the structure of which includes a first external thread rod and a second external thread rod fixedly connected to the two first connecting plates, a horizontal threaded sleeve capable of changing the distance between the first external thread rod and the second external thread rod, and a polygonal limiting rod capable of preventing relative rotation between the first external thread rod and the second external thread rod.

[0013] Preferably, the rotary drive mechanism further includes a horizontal threaded sleeve, a first external threaded rod, and a second external threaded rod. One end of the horizontal threaded sleeve is provided with a first internal threaded cavity with a concave structure, and the other end of the horizontal threaded sleeve is provided with a second internal threaded cavity with a concave structure. The rod body of the first external threaded rod is installed inside the first internal threaded cavity through the first thread structure, and the rod body of the second external threaded rod is installed inside the second internal threaded cavity through the second thread structure. The first and second external threaded rods are provided with polygonal limiting cavities with concave structures at their opposite ends. A polygonal limiting rod inserted into the polygonal limiting cavity is fixedly installed at the center of the horizontal threaded sleeve. One end of the first external threaded rod is provided with a third connecting plate, which is integral with it and fixedly connected to one of the first connecting plates. One end of the second external threaded rod is provided with a fourth connecting plate, which is fixedly connected to the other first connecting plate.

[0014] Preferably, the cross-sectional shape of the polygonal limiting cavity is consistent with the cross-sectional shape of the polygonal limiting rod, both being polygonal structures, and the structural dimensions of the cross-sectional shape of the polygonal limiting cavity match the structural dimensions of the cross-sectional shape of the polygonal limiting rod.

[0015] Preferably, the first thread structure includes an internal thread structure disposed inside the first internal thread cavity and an external thread structure disposed on the first external thread rod body, and the second thread structure includes an internal thread structure disposed inside the second internal thread cavity and an external thread structure disposed on the second external thread rod body, and the helical direction of the first thread structure is opposite to the helical direction of the second thread structure.

[0016] Compared with the prior art, the present invention provides a prone device that facilitates retinal repositioning after retinal surgery for fundus diseases, and has the following beneficial effects: The device can slide and clamp the patient's head to fix it in place. In addition, the angle of the patient's head can be adjusted in three-dimensional space, which has a wide adjustment range, thereby improving the practicality of the device. Attached Figure Description

[0017] Figure 1 This is a perspective view of the present invention; Figure 2 This is a three-dimensional cross-sectional view of the present invention; Figure 3 This is a perspective view of the sliding clamping mechanism in this invention; Figure 4 This is a three-dimensional cross-sectional view of the sliding clamping mechanism in this invention; Figure 5 This is a perspective view of the universal adjustable support mechanism in this invention; Figure 6 This is a three-dimensional cross-sectional view of the universal adjustable support mechanism in this invention; Figure 7 This is a perspective view of the rotary drive mechanism in this invention; Figure 8 This is a three-dimensional cross-sectional view of the rotary drive mechanism in this invention.

[0018] The components include: 1. Sliding clamping mechanism; 11. Horizontal slide bar; 12. Limiting connecting plate; 13. Horizontal slider; 14. Sliding hole; 15. No. 1 connecting plate; 16. Longitudinal support block; 17. Arc-shaped clamping plate; 18. Silicone pad; 2. Universal adjustable support mechanism; 21. Hemispherical shell; 22. No. 2 connecting plate; 23. Spherical placement cavity; 24. Fan-shaped embedding groove; 25. Fan-shaped locking pad; 26. Hollow sphere; 2 7. Support rod; 28. Arc-shaped fixing plate; 29. ​​Rod body fixing hole; 3. Rotary drive mechanism; 31. Horizontal threaded sleeve; 32. No. 1 internal thread cavity; 33. No. 2 internal thread cavity; 34. No. 1 thread structure; 35. No. 2 thread structure; 36. No. 1 external thread rod; 37. No. 2 external thread rod; 38. No. 3 connecting plate; 39. No. 4 connecting plate; 310. Polygonal limiting cavity; 311. Polygonal limiting rod. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Please see Figure 1 and Figure 2 A prone device that facilitates retinal repositioning after fundus disease surgery. Before operation, the No. 2 connecting plate 22 needs to be fixedly installed on the fixed plane with bolts, and the arc-shaped clamping plate 17 needs to be at a suitable angle.

[0021] To achieve secure clamping of both sides of the patient's head, please refer to [link / reference]. Figure 1 , Figure 2 , Figure 3 and Figure 4A sliding clamping mechanism 1 is required, which includes two horizontally balanced sliding rods 11, two horizontal sliders 13 that can slide along the axial direction of the horizontal sliding rods 11, an arc-shaped clamping plate 17 installed directly above the horizontal sliders 13 and that can move with the horizontal sliders 13, and silicone pads 18 installed on the clamping surface of the arc-shaped clamping plate 17 that can clamp the sides of the patient's head. The two horizontal sliders 13 are brought closer together towards the center. When the two silicone pads 18 are symmetrically clamped on both sides of the patient's head, the horizontal sliders 13 continue to move until the patient's head is tightly clamped between the two silicone pads 18, thereby achieving fixed clamping of the sides of the patient's head.

[0022] For details regarding the specific structure of the sliding clamping mechanism 1, please refer to [link / reference]. Figure 3 and Figure 4 It also includes a limiting connecting plate 12 fixedly installed at the ends of the two horizontal sliding rods 11. The interior of the horizontal slider 13 is provided with two sliding holes 14 that can slide along the horizontal sliding rods 11. The two horizontal sliders 13 are respectively provided with a first connecting plate 15 at the middle of their opposite ends. The upper surface of each horizontal slider 13 is provided with a longitudinal support block 16 that moves with the horizontal slider 13. The top of each longitudinal support block 16 is provided with an arc-shaped clamping plate 17. The concave surface of each arc-shaped clamping plate 17 is respectively provided with a silicone pad 18. The cross-sectional shape of the sliding hole 14 is consistent with the cross-sectional shape of the horizontal sliding rod 11, both being polygonal structures, and the cross-sectional dimensions of the sliding hole 14 match the cross-sectional dimensions of the horizontal sliding rod 11.

[0023] To achieve angle adjustment in three-dimensional space, please refer to [link / reference]. Figure 1 , Figure 2 , Figure 5 and Figure 6 A universal adjustable support mechanism 2 needs to be set up. Its structure includes a hemispherical shell 21 that can be fixedly installed on the fixed structural surface and has a hollow internal structure, a hollow sphere 26 that can rotate inside the hemispherical shell 21, and an arc-shaped fixing plate 28 that is set on the top of the hollow sphere 26 and can be fixedly installed in the middle of the horizontal slide bar 11. According to the required surgical angle, the entire horizontal slide bar 11 is manually rotated. At this time, the hollow sphere 26 will rotate adaptively inside the hemispherical shell 21 until the clamping angle of the arc-shaped clamping plate 17 on the patient's head meets the surgical requirements. At this time, under the frictional resistance of the fan-shaped locking pad 25, the patient's head can be kept at the surgical angle, thereby realizing the angle adjustment in three-dimensional space.

[0024] For details regarding the structure of the universal adjustable support mechanism 2, please refer to [link / reference]. Figure 5 and Figure 6It also includes a second connecting plate 22 integrally disposed at the bottom of the hemispherical shell 21. The interior of the hemispherical shell 21 has a spherical placement cavity 23 with an open top. The bottom of the spherical placement cavity 23 has a fan-shaped embedding groove 24. A rotatable hollow sphere 26 is placed inside the spherical placement cavity 23. A fan-shaped locking pad 25, which generates frictional resistance to the hollow sphere 26, is embedded in the fan-shaped embedding groove 24. The top of the hollow sphere 26 has a support rod 27 integrally disposed therewith. An arc-shaped fixing plate 28 is fixedly installed on the top of the support rod 27. The arc-shaped fixing plate 28 is provided with two rod fixing holes 29 fixedly installed at the middle of the horizontal slide rod 11. The structural radius of the spherical placement cavity 23 is adapted to the structural radius of the hollow sphere 26. The depth of the spherical placement cavity 23 is greater than the structural radius of the hollow sphere 26 and less than the structural diameter of the hollow sphere 26. The frictional resistance formed by the fan-shaped locking pad 25 on the hollow sphere 26 is sufficient to keep the arc-shaped clamping plate 17 stable during operation.

[0025] To clamp and release the patient's head, please refer to [link / reference]. Figure 1 , Figure 2 , Figure 7 and Figure 8 A rotary drive mechanism 3 needs to be set up. Its structure includes a first external threaded rod 36 and a second external threaded rod 37 fixedly connected to two first connecting plates 15, a horizontal threaded sleeve 31 that can change the distance between the first external threaded rod 36 and the second external threaded rod 37, and a polygonal limiting rod 311 that can prevent the first external threaded rod 36 and the second external threaded rod 37 from rotating relative to each other. The horizontal threaded sleeve 31 is rotated in a directional manner. Due to the threaded connection and the opposite threaded structure, and under the action of the polygonal limiting rod 311, the distance between the first external threaded rod 36 and the second external threaded rod 37 will change, thereby changing the distance between the two arc-shaped clamping plates 17, thus realizing the clamping and release of the patient's head.

[0026] For details regarding the specific structure of the rotary drive mechanism 3, please refer to [link / reference]. Figure 7 and Figure 8It also includes a horizontal threaded sleeve 31, a first external threaded rod 36, and a second external threaded rod 37. One end of the horizontal threaded sleeve 31 is provided with a first internal threaded cavity 32 with an inwardly recessed structure, and the other end of the horizontal threaded sleeve 31 is provided with a second internal threaded cavity 33 with an inwardly recessed structure. The rod body of the first external threaded rod 36 is installed inside the first internal threaded cavity 32 through a first threaded structure 34, and the rod body of the second external threaded rod 37 is installed inside the second internal threaded cavity 33 through a second threaded structure 35. The first external threaded rod 36 and the second external threaded rod 37 are provided with polygonal limiting cavities 310 with inwardly recessed structures at their opposite ends. A polygonal limiting rod 311 is fixedly installed at the center of the horizontal threaded sleeve 31 and inserted into the polygonal limiting cavity 310. One end of the first external threaded rod 36 is provided with an integral structure and connected to one of the first connecting plates. A third connecting plate 38 is fixedly connected to 15. One end of the second external thread rod 37 is provided with a fourth connecting plate 39 fixedly connected to another first connecting plate 15. The cross-sectional shape of the polygonal limiting cavity 310 is consistent with the cross-sectional shape of the polygonal limiting rod 311, both being polygonal structures. The cross-sectional dimensions of the polygonal limiting cavity 310 match the cross-sectional dimensions of the polygonal limiting rod 311. The first thread structure 34 includes an internal thread structure disposed inside the first internal thread cavity 32 and an external thread structure disposed on the first external thread rod 36. The second thread structure 35 includes an internal thread structure disposed inside the second internal thread cavity 33 and an external thread structure disposed on the second external thread rod 37. The helical direction of the first thread structure 34 is opposite to the helical direction of the second thread structure 35.

[0027] In use, the second connecting plate 22 is fixedly installed on the fixed plane with bolts, and the arc-shaped clamping plate 17 is placed at a suitable angle. The horizontal threaded sleeve 31 is rotated in an orientation. Due to the threaded connection and the opposite threaded structure, and under the action of the polygonal limiting rod 311, the distance between the first external thread rod 36 and the second external thread rod 37 will change, thereby changing the distance between the two arc-shaped clamping plates 17. This causes the two horizontal sliders 13 to move closer to the center. When the two silicone pads 18 are symmetrically clamped on both sides of the patient's head, the horizontal sliders 13 continue to move until the patient's head is tightly clamped between the two silicone pads 18. According to the required surgical angle, the entire horizontal slider 11 is manually rotated. At this time, the hollow sphere 26 will adaptively rotate inside the hemispherical shell 21 until the clamping angle of the arc-shaped clamping plate 17 on the patient's head meets the surgical requirements. At this time, under the frictional resistance of the fan-shaped locking pad 25, the patient's head can be kept within the surgical angle.

[0028] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A prone positioning device that facilitates retinal repositioning after fundus surgery, characterized in that: include, The sliding clamping mechanism (1) includes two horizontally balanced sliding rods (11), two horizontal sliders (13) that can slide along the axial direction of the horizontal sliding rods (11), an arc-shaped clamping plate (17) installed directly above the horizontal sliders (13) and that can move with the horizontal sliders (13), and a silicone pad (18) installed on the clamping surface of the arc-shaped clamping plate (17) and that can clamp the sides of the patient's head. And a universal adjustment support mechanism (2), the structure of which includes a hemispherical shell (21) that can be fixedly installed on the surface of the fixed structure and has a hollow structure inside, a hollow sphere (26) installed inside the hemispherical shell (21) and capable of rotation, and an arc-shaped fixing plate (28) set on the top of the hollow sphere (26) and capable of being fixedly installed in the middle of the horizontal slide bar (11).

2. The prone positioning device according to claim 1, which facilitates retinal repositioning after fundus surgery, is characterized in that: The sliding clamping mechanism (1) further includes a limiting connecting plate (12) fixedly installed at the ends of two horizontal sliding rods (11). The interior of the horizontal slider (13) is provided with two sliding holes (14) that can slide along the horizontal sliding rods (11). The two horizontal sliders (13) are respectively provided with a No. 1 connecting plate (15) at the middle of their opposite ends. The upper surface of each horizontal slider (13) is provided with a longitudinal support block (16) that moves with the horizontal slider (13). The top of each longitudinal support block (16) is provided with an arc-shaped clamping plate (17). The concave surface of each arc-shaped clamping plate (17) is respectively provided with a silicone pad (18).

3. The prone positioning device for facilitating retinal repositioning after fundus surgery according to claim 2, characterized in that: The cross-sectional shape of the sliding hole (14) is consistent with the cross-sectional shape of the horizontal sliding rod (11), both being polygonal structures, and the structural dimensions of the cross-sectional shape of the sliding hole (14) match the structural dimensions of the cross-sectional shape of the horizontal sliding rod (11).

4. The prone positioning device for facilitating retinal repositioning after fundus surgery according to claim 3, characterized in that: The universal adjustment support mechanism (2) also includes a second connecting plate (22) integrally set at the bottom of the hemispherical shell (21). The interior of the hemispherical shell (21) is provided with a spherical placement cavity (23) with an open top. The bottom of the spherical placement cavity (23) is provided with a fan-shaped embedding groove (24). A rotatable hollow sphere (26) is placed inside the spherical placement cavity (23). A fan-shaped locking pad (25) that generates frictional resistance to the hollow sphere (26) is embedded in the fan-shaped embedding groove (24). The top of the hollow sphere (26) is provided with a support rod (27) integrally set with it. An arc-shaped fixing plate (28) is fixedly installed on the top of the support rod (27). The arc-shaped fixing plate (28) is provided with two rod fixing holes (29) fixedly installed at the middle of the horizontal slide rod (11).

5. The prone positioning device for facilitating retinal repositioning after fundus surgery according to claim 4, characterized in that: The structural radius of the spherical placement cavity (23) is adapted to the structural radius of the hollow sphere (26), and the depth of the spherical placement cavity (23) is greater than the structural radius of the hollow sphere (26) and less than the structural diameter of the hollow sphere (26).

6. The prone positioning device for facilitating retinal repositioning after fundus surgery according to claim 5, characterized in that: The frictional resistance formed by the sector-shaped locking pad (25) on the hollow sphere (26) is sufficient to keep the arc-shaped clamping plate (17) stable during operation.

7. A prone positioning device for facilitating retinal repositioning after fundus surgery according to any one of claims 2-6, characterized in that: It also includes a rotary drive mechanism (3), the structure of which includes a first external thread rod (36) and a second external thread rod (37) fixedly connected to two first connecting plates (15), a horizontal threaded sleeve (31) capable of changing the distance between the first external thread rod (36) and the second external thread rod (37), and a polygonal limit rod (311) capable of preventing relative rotation between the first external thread rod (36) and the second external thread rod (37).

8. The prone positioning device for facilitating retinal repositioning after fundus surgery according to claim 7, characterized in that: The rotary drive mechanism (3) further includes a horizontal threaded sleeve (31), a first external threaded rod (36), and a second external threaded rod (37). One end of the horizontal threaded sleeve (31) is provided with a first internal threaded cavity (32) with a concave structure, and the other end of the horizontal threaded sleeve (31) is provided with a second internal threaded cavity (33) with a concave structure. The rod body of the first external threaded rod (36) is installed inside the first internal threaded cavity (32) through a first threaded structure (34), and the rod body of the second external threaded rod (37) is installed inside the second internal threaded cavity (33) through a second threaded structure (35). Inside the first external thread rod (36) and the second external thread rod (37), a polygonal limiting cavity (310) with a concave structure is provided at the opposite ends. A polygonal limiting rod (311) inserted into the polygonal limiting cavity (310) is fixedly installed at the center of the horizontal threaded sleeve (31). One end of the first external thread rod (36) is provided with a third connecting plate (38) that is integral with it and fixedly connected to one of the first connecting plates (15). One end of the second external thread rod (37) is provided with a fourth connecting plate (39) that is fixedly connected to the other first connecting plate (15).

9. The prone positioning device according to claim 8, which facilitates retinal repositioning after fundus surgery, is characterized in that: The cross-sectional shape of the polygonal limiting cavity (310) is consistent with the cross-sectional shape of the polygonal limiting rod (311), both being polygonal structures, and the structural dimensions of the cross-section of the polygonal limiting cavity (310) match the structural dimensions of the cross-section of the polygonal limiting rod (311).

10. The prone positioning device according to claim 9, which facilitates retinal repositioning after fundus surgery, is characterized in that: The first thread structure (34) includes an internal thread structure disposed inside the first internal thread cavity (32) and an external thread structure disposed on the first external thread rod (36). The second thread structure (35) includes an internal thread structure disposed inside the second internal thread cavity (33) and an external thread structure disposed on the second external thread rod (37). The helical direction of the first thread structure (34) is opposite to the helical direction of the second thread structure (35).

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