Orthopedic surgery positioning device

Abstract

The present invention provides an orthopedic surgical positioning device, which relates to the technical field of orthopedic surgical instruments, and comprises a base plate, a first sliding seat, a second sliding seat, an electric lifting member, a long inclined plate, a short inclined plate, and a connecting rod frame. The electric lifting member, the connecting rod frame, and the long inclined plate installed on the two sets of sliding seats form a quadrilateral structure, so that the long inclined plate has a higher adjustable degree of freedom and can be used by patients with different limb lengths and joint positions. The short inclined plate and the long inclined plate can form an L-shaped structure. When in use, the long inclined plate is adjusted to a suitable position, and then the short inclined plate is unfolded outward. The limiting arc frame designed at the bottom of the short inclined plate pushes the inclined plate member, thereby squeezing the connecting rod member, thereby causing the connecting shaft to move laterally, so that the tapered shaft section of the connecting shaft squeezes the tapered hole on the connecting rod frame, and the long inclined plate, the connecting rod frame, and the short inclined plate are fixed, thereby forming a stable triangular structure, thereby simplifying the steps of adjusting the orthopedic surgical positioning device and making it more practical.

Description

Technical Field

[0001] The present invention relates to the technical field of orthopedic surgical instruments, and in particular to an orthopedic surgical positioning device. Background Art

[0002] Limb fracture is one of the most common conditions encountered in orthopedic surgery. During the operation, it is necessary to locate the surgical instruments and the patient's limb parts to achieve accurate drilling or installation of cone screws to ensure the smooth and safe progress of orthopedic surgery.

[0003] When fixing the limbs of orthopedic patients, the size of the positioning device required is different due to the different limb lengths and joint positions of each patient. Although there are currently relevant adjustable positioning devices, their adjustment freedom is insufficient, and multiple positioning devices need to be designed according to the situation. This will increase the investment cost of the equipment for the hospital. For this reason, the present invention provides an orthopedic surgical positioning device. Summary of the Invention

[0004] In response to the shortcomings of the existing technology, the present invention provides an orthopedic surgical positioning device, which solves the problem that the existing adjustable limb positioning devices have insufficient adjustment freedom and need to design multiple positioning devices according to the situation, which will increase the investment cost of the equipment for hospitals.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0006] An orthopedic surgical positioning device includes a base plate, the base plate being fixedly mounted on an operating table / table via mounting fasteners, a slide rail being fixedly mounted on the top of the base plate, a first slide seat and a second slide seat being slidably mounted on the slide rail, and a third locking pin being threadedly mounted on the first slide seat for fixing the first slide seat to the slide rail;

[0007] It also includes: an electric lifting member, a long inclined plate, a short inclined plate, and a connecting rod frame, wherein the bottom of the electric lifting member is fixedly installed with the top of the second sliding seat, the oblique lower portion of the long inclined plate is hinged to the telescopic end of the electric lifting member, the first end of the connecting rod frame is hinged to the first sliding seat, the second end of the connecting rod frame, the oblique lower end of the long inclined plate, and the oblique lower end of the short inclined plate are connected together through a connecting shaft, and the connecting shaft is splined with the long inclined plate, the connecting shaft is matched with the optical axis of the short inclined plate, and the connecting shaft is matched with the tapered shaft of the connecting rod frame;

[0008] The bottom of the short inclined plate is fixedly connected to a limiting arc frame, and a horizontal frame is fixedly connected to the limiting arc frame. The bottom hinge of the long inclined plate is installed with an inclined plate member, and the end of the inclined plate member has an insertion rod. The inner end of the connecting shaft is hingedly connected to a connecting rod member, and the insertion rod is inserted into the ear hole on the connecting rod member.

[0009] Preferably, the second end of the connecting rod frame, the oblique lower end of the long oblique plate, and the oblique lower end of the short oblique plate are all forked frame structures, and there are two groups of connecting shafts. The ends of the oblique plate members have two groups of plug rods, and the two groups of plug rods are respectively connected to the two connecting rod members corresponding to the two groups of connecting shafts.

[0010] Preferably, a square extension piece is fixedly installed on the bottom of the base plate, a transverse sliding hole is opened on the square extension piece, a sliding rod is slidably installed inside the transverse sliding hole, and the end of the sliding rod away from the base plate is fixedly connected to the buffer base, and the top of the buffer base is provided with a mounting groove, and the inside of the mounting groove is provided with a first wedge block, a second wedge block, a vertical wedge frame, and an elastic member, the inclined surface of the first wedge block and the inclined surface of the second wedge block are arranged opposite to each other, and the elastic member is arranged between the first wedge block and the second wedge block, and the top of the buffer base is fixedly installed with a guide seat, and the vertical wedge frame is connected to The guide seat is slidably connected, the inclined surface of the vertical wedge frame cooperates with the inclined surface of the second wedge block, and the inside of the mounting groove is rotatably installed with an inclined link through the second long axis, the inclined lower side of the inclined link corresponds to the inclined surface of the first wedge block, and the top of the inclined link is rotatably installed with a hip support member through the first long axis, and a groove is provided on the top of the hip support member, and the top of the vertical wedge frame corresponds to the first long axis, and a stabilizing plate is fixedly installed on the top of the buffer base and above the elastic member, and a support frame is fixedly installed on the bottom of the hip support member, and the bottom of the support frame is arc-shaped.

[0011] Preferably, a fourth locking pin for fixing the sliding rod and the square extension piece is threadedly installed on the top of the base plate.

[0012] Preferably, the mounting fastener comprises: a frame, the top of the frame is fixedly mounted to the base plate by a first screw, the bottom of the frame is threadedly mounted with a second locking pin, and the bottom of the base plate is fixedly mounted with a stabilizing pad.

[0013] Preferably, the connecting shaft includes a spline shaft section, an optical shaft section, a tapered shaft section, and a connecting ear that are integrally arranged, and the connecting rod is rotatably connected to the connecting ear.

[0014] Preferably, a handle is fixedly provided on the top of the short inclined plate.

[0015] Preferably, both ends of the slide rail are provided with limiting members.

[0016] Preferably, a control button is provided on the side of the electric lifting member.

[0017] Preferably, the top of the hip support is provided with a recess corresponding to the buttocks of the human body.

[0018] The present invention provides an orthopedic surgical positioning device. It has the following beneficial effects:

[0019] 1. The present invention designs two sets of sliding seats on the slide rail, one set of sliding seats is in a freely adjustable state, and the other set of sliding seats is in a fixed state when in use, and an electric lifting member, a long inclined plate, and a connecting rod frame (installed on the two sets of sliding seats) are designed to form a quadrilateral structure, so that the long inclined plate has a higher degree of adjustable freedom and can adapt to patients with different limb lengths and joint positions; and the short inclined plate and the long inclined plate can form an L-shaped structure, and the short inclined plate can also be folded toward the long inclined plate. When in use, the long inclined plate is adjusted to a suitable position, and then the short inclined plate is unfolded outward. The limiting arc frame designed at the bottom of the short inclined plate pushes the inclined plate member, and then squeezes the connecting rod member, thereby causing the connecting shaft to move laterally, so that the tapered shaft section of the connecting shaft squeezes the tapered hole on the connecting rod frame, so that the long inclined plate, the connecting rod frame, and the short inclined plate are fixed. At this time, the long inclined plate and the connecting rod frame are relatively fixed, that is, a stable triangular structure is formed, which can quickly stabilize the long inclined plate, thereby simplifying the steps of adjusting the orthopedic surgical positioning device and making it more practical.

[0020] 2. The present invention further designs a hip support member that can slide relative to the base plate to adjust the distance. The bottom of the hip support member is buffered and supported by a buffer base structure, which can limit the patient's buttocks while avoiding harm to the patient. Specifically, by designing the first wedge block, the elastic member, the second wedge block, the vertical wedge frame and the tilted tilt connecting rod, a double-support buffer structure can be formed, that is, in the process of the tilt connecting rod tilting downward, the first wedge block is squeezed, and the first wedge block slides laterally to squeeze the elastic member, and then pushes the second wedge block to slide laterally, so that the vertical wedge frame moves upward, so that the top end of the vertical wedge frame can support the first long axis of the top end of the tilt connecting rod as soon as possible. When the tilt connecting rod continues to tilt downward, both ends of the vertical wedge frame are subjected to elastic force, and the elastic support is more stable and more comfortable. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a three-dimensional diagram of an orthopedic surgery positioning device proposed by the present invention;

[0022] Figure 2 This is a front view of an orthopedic surgery positioning device proposed by the present invention;

[0023] Figure 3 This is a side view of an orthopedic surgery positioning device proposed by the present invention;

[0024] Figure 4 This is a top view of an orthopedic surgery positioning device proposed by the present invention;

[0025] Figure 5 for Figure 4 Sectional view of the section line at AA;

[0026] Figure 6 for Figure 5 A partial enlarged view of point B in the middle;

[0027] Figure 7 This is a first-perspective schematic diagram of an electric lifting component, a long inclined plate, a short inclined plate, and a connecting rod frame of an orthopedic surgical positioning device proposed by the present invention;

[0028] Figure 8 This is a second perspective schematic diagram of the electric lifting member, long inclined plate, short inclined plate, and connecting rod frame of the orthopedic surgery positioning device proposed by the present invention;

[0029] Figure 9 for Figure 8 A partial enlarged view of point C in the middle;

[0030] Figure 10 This is a schematic diagram of the connection of the connecting shaft, connecting rod and inclined plate of the orthopedic surgery positioning device proposed by the present invention;

[0031] Figure 11 This is a three-dimensional view of a buffer base of an orthopedic surgery positioning device proposed by the present invention.

[0032] Among them, 1, base plate; 2, mounting fastener; 201, frame; 202, first screw; 203, second locking pin; 3, slide rail; 3a, limiter; 4, stabilizing pad; 5, first sliding seat; 6, third locking pin; 7, second sliding seat; 8, electric lifting member; 8a, control button; 9, long inclined plate; 10, short inclined plate; 10a, handle; 11, connecting rod frame; 12, square extension; 13, sliding rod; 14, fourth locking pin; 15, buffer base; 16, tilt Diagonal connecting rod; 17. Hip support member; 18. Support frame; 19. First long axis; 20. First wedge block; 21. Elastic member; 22. Second wedge block; 23. Vertical wedge frame; 24. Second long axis; 25. Stabilizing plate; 26. Guide seat; 27. Limiting arc frame; 28. Horizontal frame; 29. ​​Diagonal plate member; 29a, plug rod; 30. Connecting shaft; 3001. Spline shaft section; 3002. Optical shaft section; 3003. Tapered shaft section; 3004. Connecting ear; 31. Connecting rod member. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] Example:

[0035] like Figures 1-11As shown, an embodiment of the present invention provides an orthopedic surgical positioning device, including a base plate 1, an electric lifting member 8, a long inclined plate 9, a short inclined plate 10, and a connecting rod frame 11. The base plate 1 is fixedly mounted on an operating bed / table by a mounting fastener 2. A plurality of mounting fasteners 2 can be provided along one side of the base plate 1 to ensure the stability of the installation of the base plate 1 and the operating bed / table. A slide rail 3 is fixedly mounted on the top of the base plate 1. The slide rail 3 is provided along the length direction of the operating bed / table. A first sliding seat 5 and a second sliding seat 7 are slidably mounted on the slide rail 3, and a third locking pin 6 for fixing the first sliding seat 5 and the slide rail 3 is threadedly mounted on the first sliding seat 5. When in use, the user can adjust the position of the first sliding seat 5, and the second sliding seat 7 is restricted by the electric lifting member 8, the long inclined plate 9, the short inclined plate 10, and the connecting rod frame 11. There is no need to adjust the position of the second sliding seat 7, so that the electric lifting member 8, the long inclined plate 9, and the short inclined plate 10. The connecting rod frame 11 is in a position suitable for supporting the patient's legs. The bottom of the electric lifting member 8 is fixedly installed on the top of the second sliding seat 7. The oblique lower part of the long inclined plate 9 is hinged to the telescopic end of the electric lifting member 8. The first end of the connecting rod frame 11 is hinged to the first sliding seat 5. The second end of the connecting rod frame 11, the oblique lower end of the long inclined plate 9, and the oblique lower end of the short inclined plate 10 are connected together through the connecting shaft 30, so that a section of slide rail 3, electric lifting member 8, long oblique plate 9, and connecting rod frame 11 between the first sliding seat 5 and the second sliding seat 7 constitute a quadrilateral structure. In this quadrilateral structure, the second sliding seat 7 can slide along the slide rail 3 to adjust the length of a section of slide rail 3 between the first sliding seat 5 and the second sliding seat 7. The electric lifting member 8 and the long oblique plate 9 are movable, the long oblique plate 9 and the connecting rod frame 11 are movable, and the connecting rod frame 11 and the first sliding seat 5 are all movable, so that the long oblique plate 9 can be freely adjusted in height, invasion angle, left and right position, etc.

[0036] The connecting shaft 30 is spline-matched with the long inclined plate 9 (a spline hole is provided on the long inclined plate 9, and a spline shaft section 3001 is provided on the connecting shaft 30. The spline shaft section 3001 and the spline hole cannot rotate relative to each other, but can slide axially), the connecting shaft 30 is optically matched with the short inclined plate 10, and the connecting shaft 30 is taperedly matched with the connecting rod frame 11, wherein a tapered hole is provided on the connecting rod frame 11, and a tapered shaft section 3003 is provided on the connecting shaft 30, that is, the connecting shaft 30 and the long inclined plate 9 cannot rotate relative to each other, and the short inclined plate 10 can rotate freely relative to the connecting shaft 30. When the connecting shaft 30 slides axially, the connecting shaft 30 and the connecting rod frame 11 are conically squeezed to fix the connecting shaft 30 and the connecting rod frame 11. At this time, the connecting shaft 30 cannot rotate relative to the connecting rod frame 11 and the long inclined plate 9. At this time, the long inclined plate 9 and the connecting rod frame 11 are in a fixed state.

[0037] Specifically, the bottom of the short inclined plate 10 is fixedly connected to a limiting arc frame 27, and a cross frame 28 is fixedly connected to the limiting arc frame 27. The bottom hinge of the long inclined plate 9 is installed with an inclined plate member 29, and the end of the inclined plate member 29 has an insert rod 29a. The inner end of the connecting shaft 30 is hingedly connected to a connecting rod member 31, and the insert rod 29a is inserted into the ear hole on the connecting rod member 31.

[0038] As can be seen from the above, the short inclined plate 10 can rotate freely relative to the connecting shaft 30, and the user can manipulate the short inclined plate 10 to expand relative to the long inclined plate 9. The short inclined plate 10 drives the limiting arc frame 27 to move in a circle, and the horizontal frame 28 moves with the limiting arc frame 27. The horizontal frame 28 can push the inclined plate member 29 to move, thereby causing the connecting rod member 31 to move at an angle, and one end of the connecting rod member 31 drives the connecting shaft 30 to move horizontally.

[0039] When in use, the long inclined plate 9 of the orthopedic surgical positioning device is adjusted to a suitable position, and then the short inclined plate 10 is unfolded to fix the connecting rod 31 to the short inclined plate 10, thereby forming a stable triangular structure, wherein the connecting rod 31 and the short inclined plate 10 are integrated, the electric lifting member, and the slide rail 3 located between the first sliding seat 5 and the second sliding seat 7, as shown in FIG. Figure 8 As shown in the figure, a number of connecting protrusions are provided at the bottom of the long inclined board 9, which cooperate with the fasteners at the end of the fixing belt commonly used in the hospital. After the patient's legs are placed on the long inclined board 9, the fixing belt commonly used in the hospital is used to fix the patient's legs to the long inclined board 9, thereby achieving the purpose of positioning and fixing the legs of orthopedic patients.

[0040] like Figure 5 As shown in , at this time, the long inclined plate 9 and the short inclined plate 10 form an "L" shape. The long inclined plate 9 can be used to fix the patient's calf so that the patient's foot is against the short inclined plate 10 to prevent the short inclined plate 10 from being folded toward the long inclined plate 9 by external force, thereby ensuring the reliability of the fixation of the long inclined plate 9 and the connecting rod frame 11.

[0041] like Figure 7-10 As shown, in one embodiment, the second end of the connecting rod frame 11, the oblique lower end of the long oblique plate 9, and the oblique lower end of the short oblique plate 10 are all forked frame structures, and the second end of the connecting rod frame 11, the oblique lower end of the long oblique plate 9, and the oblique lower end of the short oblique plate 10 all have two sets of connecting ears, and the connecting ears of the short oblique plate 10 are located between the connecting ears of the connecting rod frame 11 and the connecting ears of the long oblique plate 9. There are two groups of connecting shafts 30, and the end of the oblique plate member 29 has two groups of insertion rods 29a, and the two groups of insertion rods 29a are respectively connected to the two connecting rod members 31 corresponding to the two groups of connecting shafts 30.

[0042] like Figure 10As shown in the figure, one end of the inclined plate member 29 is set as a thin plate structure, so that the thin plate structure of the inclined plate member 29 can be fixedly connected to the bottom of the long inclined plate 9 by screws, and the main part of the inclined plate member 29 relies on the flexible deformation of the thin plate structure to realize the swing of the main part of the inclined plate member 29. The end of the inclined plate member 29 is fixedly connected with two groups of parallel inserted rods 29a, and the inserted rods 29a are consistent with the length direction of the inclined plate member 29.

[0043] like Figure 10 As shown in the figure, when one end of the insert rod 29a of the inclined plate 29 is swung upward, the bottom ends of the two connecting rods 31 are pushed upward, and the top ends of the two connecting rods 31 are restricted by the connecting shaft 30. The connecting shaft 30 can only slide along the axial direction, causing the two connecting rods 31 to move apart toward both sides, that is, to push the connecting shaft 30 to slide horizontally.

[0044] When the two connecting rods 31 are located on the same straight line, the two connecting rods 3 are in a stable state, and at this time the connecting shaft 30 and the connecting rod frame 11 are very tightly matched.

[0045] In one embodiment, a square extension piece 12 is fixedly installed at the bottom of the base plate 1, and a transverse sliding hole is opened on the square extension piece 12. A sliding rod 13 is slidably installed inside the transverse sliding hole. The end of the sliding rod 13 away from the base plate 1 is fixedly connected to a buffer base 15. The bottom of the buffer base 15 is supported on the operating bed / table. The sliding rod 13 can slide and adjust its position relative to the square extension piece 12 so that the distance between the buffer base 15 and the base plate 1 is appropriate. A mounting groove is provided on the top of the buffer base 15. A first wedge block 20, a second wedge block 22, a vertical wedge frame 23, and an elastic member 21 are provided inside the mounting groove. The inclined surface of the first wedge block 20 is arranged opposite to the inclined surface of the second wedge block 22. The elastic member 21 is arranged between the first wedge block 20 and the second wedge block 22. A guide seat 26 is fixedly installed on the top of the buffer base 15. The vertical wedge frame 23 is slidably connected to the guide seat 26. The guide seat 26 allows the vertical wedge frame 23 to slide only in the up and down directions. The inclined surface of the vertical wedge frame 23 cooperates with the inclined surface of the second wedge block 22. The interior of the groove is rotatably installed with a tilt link 16 through the second long axis 24, and the oblique lower part of the tilt link 16 corresponds to the oblique surface of the first wedge block 20. The top of the tilt link 16 is rotatably installed with a hip support 17 through the first long axis 19. The top of the hip support 17 is provided with a groove, and the top of the vertical wedge frame 23 corresponds to the first long axis 19. When the first long axis 19 is in motion, it will not only move in the up and down directions, but also slide in the horizontal direction. The top of the vertical wedge frame 23 can be set wider. When the first long axis 19 slides horizontally, the first long axis 19 is always above the vertical wedge frame 23. A stabilizing plate 25 is fixedly installed on the top of the buffer base 15 and above the elastic member 21. The stabilizing plate 25 is used to limit the elastic member 21 to prevent the elastic member 21 from shifting upward. The bottom of the hip support 17 is fixedly installed with a support frame 18. The bottom of the support frame 18 is arc-shaped. The bottom of the support frame 18 can move on the operating bed / table to make the hip support 17 tiltable.

[0046] Specifically, the patient's thigh (buttocks) is supported on the buttocks support 17, and the buttocks support 17 is pressed downward. At this time, the first long axis 19 drives the top end of the tilt link 16 to move downward, that is, the tilt angle of the tilt link 16 increases, and the tilt link 16 squeezes the first wedge block 20. The first wedge block 20 slides horizontally to squeeze the elastic member 21. The elastic member 21 contracts a part, and the other side of the elastic member 21 pushes the second wedge block 22. The second wedge block 22 cooperates with the vertical wedge frame 23 in a wedge shape to drive the vertical wedge frame 23 to move upward. The top end can quickly rest against the bottom of the first long axis 19, and then the first long axis 19 moves downward, synchronously squeezing the elastic member 21 from both sides, wherein the first side is: the first long axis 19 increases the inclination angle of the inclined link 16, thereby squeezing the first wedge block 20, and the first wedge block 20 slides laterally to squeeze the elastic member 21; the second side is: the first long axis 19 vertically presses down the vertical wedge frame 23, and the vertical wedge frame 23 squeezes the second wedge block 22 to squeeze the elastic member 21, thereby increasing the elastic supporting force, and the hip support member 17 supports the patient's thigh (hip) more stably.

[0047] In one embodiment, a fourth locking pin 14 is installed on the top thread of the base plate 1 for fixing the sliding rod 13 and the square extension piece 12. The sliding rod 13 is slid to an appropriate length so that the distance between the buffer base 15 and the base plate 1 is appropriate, and then the fourth locking pin 14 is tightened to fix the sliding rod 13 and the square extension piece 12.

[0048] In one embodiment, the mounting fastener 2 includes: a frame 201, the top of the frame 201 is fixedly mounted to the base plate 1 by a first screw 202, the bottom of the frame 201 is threadedly mounted with a second locking pin 203, two groups of second locking pins 203 can be provided, and the two groups of second locking pins 203 are distributed at the diagonal positions of the bottom of the frame 201, and a stabilizing pad 4 is fixedly mounted on the bottom of the base plate 1. Generally, the side profile (bed frame) of an operating bed / table is relatively high. After the mounting fastener 2 is installed, there is a certain gap between the bottom of the base plate 1 and the surface of the operating bed / table. By designing the stabilizing pad 4, the position of the base plate 1 can be supported on the surface of the operating bed / table.

[0049] In one embodiment, the connecting shaft 30 includes a spline shaft section 3001 , an optical shaft section 3002 , a tapered shaft section 3003 , and a connecting ear 3004 that are integrally provided, and the connecting rod 31 is rotatably connected to the connecting ear 3004 .

[0050] like Figure 10 As shown in the figure, one end of the spline shaft segment 3001 is fixedly connected to one end of the optical shaft segment 3002, and a tapered portion is provided on the outer side of the optical shaft segment 3002 to form a tapered shaft segment 3003, and the end of the tapered shaft segment 3003 is fixedly connected to the connecting ear 3004.

[0051] In one embodiment, a handle 10 a is fixedly provided on the top of the short inclined board 10 to facilitate the user to manipulate the short inclined board 10 .

[0052] In one embodiment, a control button 8 a is provided on the side of the electric lifting member 8 to facilitate the control of the lifting action of the electric lifting member 8 .

[0053] One operating method is: the user holds the electric lifting member 8 with one hand, operates the electric lifting member 8 to drive the second sliding seat 7 to slide along the slide rail 3, and can use the thumb to press the control button 8a set on the side of the electric lifting member 8 to operate the electric lifting member 8 to rise and fall. The user holds the handle 10a of the short inclined board 10 with the other hand, and after the long inclined board 9 is in a suitable position, the user releases the hand holding the electric lifting member 8, drags the long inclined board 9 from the bottom of the long inclined board 9, and then pushes the short inclined board 10 outward with the other hand.

[0054] In one embodiment, both ends of the slide rail 3 are provided with limiting members 3 a , and the limiting members 3 a prevent the first sliding seat 5 and the second sliding seat 7 from sliding off the slide rail 3 .

[0055] In one embodiment, a recess corresponding to the buttocks of a human body is provided on the top of the buttocks support 17 , so that the patient's buttocks can be pressed against the top of the buttocks support 17 .

[0056] While the embodiments of the present invention have been shown and described, it will be apparent to those skilled in the art that various changes, modifications, substitutions, and alterations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. An orthopedic surgical positioning device, comprising a base plate (1), wherein the base plate (1) is fixedly mounted on an operating table / table via a mounting fastener (2), and characterized in that: A slide rail (3) is fixedly mounted on the top of the base plate (1), a first slide seat (5) and a second slide seat (7) are slidably mounted on the slide rail (3), and a third locking pin (6) for fixing the first slide seat (5) and the slide rail (3) is threadedly mounted on the first slide seat (5); It also includes: an electric lifting member (8), a long inclined plate (9), a short inclined plate (10), and a connecting rod frame (11), wherein the bottom of the electric lifting member (8) is fixedly mounted on the top of the second sliding seat (7), the oblique lower portion of the long inclined plate (9) is hinged to the telescopic end of the electric lifting member (8), the first end of the connecting rod frame (11) is hinged to the first sliding seat (5), the second end of the connecting rod frame (11), the oblique lower end of the long inclined plate (9), and the oblique lower end of the short inclined plate (10) are connected together through a connecting shaft (30), and the connecting shaft (30) is spline-matched with the long inclined plate (9), the connecting shaft (30) is optically matched with the short inclined plate (10), and the connecting shaft (30) is tapered with the connecting rod frame (11); The bottom of the short inclined plate (10) is fixedly connected to a limit arc frame (27), the limit arc frame (27) is fixedly connected to a cross frame (28), the bottom of the long inclined plate (9) is hingedly mounted with an inclined plate member (29), the end of the inclined plate member (29) has an insertion rod (29a), the inner end of the connecting shaft (30) is hingedly connected to a connecting rod member (31), and the insertion rod (29a) is inserted into an ear hole on the connecting rod member (31); The second end of the connecting rod frame (11), the oblique lower end of the long oblique plate (9), and the oblique lower end of the short oblique plate (10) are all bifurcated frame structures, the connecting shaft (30) is provided with two groups, the end of the oblique plate member (29) has two groups of insertion rods (29a), and the two groups of insertion rods (29a) are respectively connected to the two connecting rod members (31) corresponding to the two groups of connecting shafts (30); The short inclined plate (10) can rotate freely relative to the connecting shaft (30). The user manipulates the short inclined plate (10) to perform an unfolding movement relative to the long inclined plate (9). The short inclined plate (10) drives the limiting arc frame (27) to move in a circle. The cross frame (28) moves along with the limiting arc frame (27). The cross frame (28) can push the inclined plate member (29) to move, thereby causing the connecting rod member (31) to move in an angle. One end of the connecting rod member (31) drives the connecting shaft (30) to move in a horizontal direction.

2. An orthopedic surgery positioning device according to claim 1, characterized in that: A square extension piece (12) is fixedly installed at the bottom of the base plate (1), and a transverse sliding hole is opened on the square extension piece (12). A sliding rod (13) is slidably installed inside the transverse sliding hole. The end of the sliding rod (13) away from the base plate (1) is fixedly connected to a buffer base (15). A mounting groove is arranged on the top of the buffer base (15). A first wedge block (20), a second wedge block (22), a vertical wedge frame (23), and an elastic member (21) are arranged inside the mounting groove. The inclined surface of the first wedge block (20) and the inclined surface of the second wedge block (22) are arranged opposite to each other. The elastic member (21) is arranged between the first wedge block (20) and the second wedge block (22). A guide seat (26) is fixedly installed on the top of the buffer base (15). The vertical wedge frame (23) and the guide seat (26) are connected to each other. The vertical wedge frame (23) is slidably connected to the seat (26), the inclined surface of the vertical wedge frame (23) cooperates with the inclined surface of the second wedge block (22), the interior of the mounting groove is rotatably mounted with an inclined link (16) through the second long axis (24), the oblique lower part of the inclined link (16) corresponds to the inclined surface of the first wedge block (20), the top of the inclined link (16) is rotatably mounted with a hip support member (17) through the first long axis (19), the top of the hip support member (17) is provided with a groove, the top of the vertical wedge frame (23) corresponds to the first long axis (19), a stabilizing plate (25) is fixedly mounted on the top of the buffer base (15) and located above the elastic member (21), a support frame (18) is fixedly mounted on the bottom of the hip support member (17), and the bottom of the support frame (18) is arc-shaped.

3. An orthopedic surgery positioning device according to claim 2, characterized in that: A fourth locking pin (14) for fixing the sliding rod (13) and the square extension piece (12) is threadedly mounted on the top of the base plate (1).

4. The orthopedic surgery positioning device according to claim 1, characterized in that: The mounting fastener (2) comprises: a frame (201), the top of the frame (201) being fixedly mounted to the base plate (1) via a first screw (202), the bottom of the frame (201) being threadedly mounted with a second locking pin (203), and the bottom of the base plate (1) being fixedly mounted with a stabilizing pad (4).

5. The orthopedic surgery positioning device according to claim 1, characterized in that: The connecting shaft (30) comprises a spline shaft section (3001), an optical shaft section (3002), a tapered shaft section (3003), and a connecting ear (3004) which are integrally arranged, and the connecting rod member (31) is rotatably connected to the connecting ear (3004).

6. The orthopedic surgery positioning device according to claim 1, characterized in that: A handle (10a) is fixedly provided on the top of the short inclined plate (10).

7. The orthopedic surgery positioning device according to claim 1, characterized in that: Limiting members (3a) are provided at both ends of the slide rail (3).

8. The orthopedic surgery positioning device according to claim 1, characterized in that: A control button (8a) is provided on the side of the electric lifting member (8).

9. The orthopedic surgery positioning device according to claim 3, characterized in that: The top of the buttocks support (17) is provided with a notch corresponding to the buttocks of a human body.

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