Operating room patient limb fixing device

Abstract

The utility model discloses an operating room patient limb fixing device which comprises an installation frame, an adjusting mechanism, a fixing mechanism and a locking assembly, the installation frame is of a long-strip-shaped structure arranged in the longitudinal direction, and the installation frame is provided with a fastening assembly used for installing the installation frame on the edge of a sickbed; the fixing mechanism is arranged on the transverse inner side of the mounting frame through the adjusting mechanism and can be vertically and transversely adjusted through the adjusting mechanism, and the fixing mechanism comprises a supporting plate and clamping plates arranged on the two transverse sides of the supporting plate; the locking assembly is arranged at the tops of the two clamping plates of the fixing mechanism and used for enclosing and locking the tops of the two clamping plates, and an angle adjusting assembly is arranged between the supporting plate and the adjusting mechanism and used for locking the fixing mechanism after the fixing mechanism rotates along the transverse axis. According to the utility model, the longitudinal, transverse, vertical and inclined angle adjustment can be realized, the legs of a patient can be conveniently fixed, and the fixation of different parts of the legs of the patient and the supporting and lifting of the limbs of the legs can be realized.

Description

Technical Field

[0001] The utility model relates to the technical field of patient limb care, in particular to a patient limb fixing device in an operating room. Background Art

[0002] The operating room, a place where surgery and emergency treatment are performed, is a crucial technical department in a hospital. Limb immobilizers are commonly found in operating rooms. During surgery, medical staff use them to secure the patient's limbs to prevent any unsecured limbs from interfering with the procedure. Limb immobilizers are designed to secure the limbs of patients of normal size. However, for extremely obese or thin patients, or those with varying injuries, these devices present limitations, making it difficult to achieve adequate limb immobilization, impacting medical staff's work efficiency.

[0003] To address the above technical issues, a utility model patent with publication number CN213284104U discloses a patient limb fixation frame for operating room nursing. The patent maintains a relatively tight elastic bandage, moves the limiting hole to the corresponding limiting rod position and engages it to secure the limb. During the fixation process, a slider can be slid to secure different parts of the limb. However, the patent also has the following shortcomings: the leg cannot be raised, the fixation position cannot be adjusted simultaneously forward, backward, left, and right, and the fixation angle cannot be adjusted, making it inconvenient to fix the leg according to the patient's condition and perform surgery.

[0004] Therefore, it is necessary to develop an operating room patient limb fixation device with a simple structure, easy operation, and adjustable fixing position, height and fixing angle. Summary of the Invention

[0005] The purpose of the present invention is to solve the deficiencies of the above-mentioned background technology and to provide an operating room patient limb fixation device which has a simple structure, is easy to operate, and can adjust the fixing position, height and fixing angle.

[0006] The technical solution of the utility model is: a limb fixation device for patients in an operating room, characterized by comprising a mounting frame, an adjustment mechanism, a fixing mechanism, and a locking assembly.

[0007] The mounting frame is a long strip structure arranged in the longitudinal direction, the cross section of the mounting frame is U-shaped with the opening facing the transverse inner side, and the mounting frame is provided with a fastening assembly for mounting the mounting frame on the edge of the bed;

[0008] The fixing mechanism is arranged on the lateral inner side of the mounting frame through an adjusting mechanism and can be adjusted vertically and laterally through the adjusting mechanism. The fixing mechanism includes a support plate and clamping plates arranged on both lateral sides of the support plate. The two clamping plates are bent laterally relative to each other and the bottom of each clamping plate can be hinged to the lateral side of the support plate by rotating along the longitudinal axis. The locking assembly is arranged on the top of the two clamping plates of the fixing mechanism for enclosing and locking the top of the two clamping plates. An angle adjustment assembly is provided between the support plate and the adjusting mechanism for locking the fixing mechanism after rotating along the transverse axis.

[0009] Preferably, the fastening assembly includes first fixing screws arranged at both longitudinal ends of the mounting frame, each first fixing screw is vertically threadedly connected to the mounting frame, the tail end of each first fixing screw vertically enters the mounting frame and is fixed with a clamping plate, and the surface of the clamping plate is arranged perpendicular to the axial direction of the first fixing screw.

[0010] Preferably, the adjustment mechanism includes a vertical adjustment component arranged on the top of the mounting frame and a lateral adjustment component arranged on the top of the vertical adjustment component, the vertical adjustment component includes an inner column and an outer tube that are inner and outer coupled, the lower end of the outer tube is fixedly connected to the top of the mounting frame, a first through hole is provided on the outer tube that passes through horizontally and a plurality of the first through holes are vertically spaced apart, a second screw hole is provided on the inner column that passes through horizontally and a plurality of the second screw holes are vertically spaced apart, a second fixing screw is provided on the outer tube that passes through the first through hole and is threadedly connected to the second screw hole of the inner column.

[0011] Furthermore, the lateral adjustment component includes an extension rod that passes horizontally through the top of the inner column and a support seat arranged at the horizontal inner end of the extension rod. A third screw hole that passes vertically through the extension rod is opened and multiple third screw holes are arranged horizontally at intervals. A third fixing screw is provided at the top of the inner column and is threadedly connected to the third screw hole downward.

[0012] Furthermore, the support seat is in the shape of a strip arranged in the longitudinal direction, the support seat is passed through the transverse inner end of the extension rod, and reinforcement rods are provided between the two ends of the support seat and the extension rod.

[0013] Furthermore, the angle adjustment assembly includes a connecting block arranged at the bottom of the support plate and a rotating shaft fixedly passed through the connecting block. Two support plates are laterally spaced apart on the top of the support seat. The connecting block is located between the two support plates. Both ends of the rotating shaft pass through and are hinged to the corresponding support plates so that the connecting block can rotate along the transverse axis. Each support plate is provided with a locking assembly for locking the rotation angle of the rotating shaft.

[0014] Furthermore, the locking assembly includes a connecting frame fixedly connected to the transverse outer surface of the support plate and a pull rod passed through the connecting frame and can only move laterally. The end of the rotating shaft is provided with an adaptation groove and the inner wall of the adaptation groove is circumferentially spaced with locking teeth. The inner end of the pull rod is provided with an adaptation block corresponding to the shape of the adaptation groove. A spring is passed through the pull rod and the inner and outer ends of the spring are respectively connected to the adaptation block and the connecting frame. The spring is in a compressed state under normal circumstances, and the adaptation block is pressed into the adaptation groove to lock the rotating shaft.

[0015] Furthermore, the pull rod is provided with a handle outside the connecting frame.

[0016] Furthermore, the cross section of the pull rod is square, and the connecting frame is provided with a square movable hole corresponding to the pull rod to limit the pull rod to move only horizontally.

[0017] Preferably, the locking assembly includes a vertical plate provided on the top of each clamping plate, and the vertical plates of the two clamping plates are bolted together to lock the two clamping plates together.

[0018] The beneficial effects of the utility model are:

[0019] 1. The present invention utilizes a mounting bracket to allow the entire fixture to be installed on the edge of a hospital bed. The bracket has a U-shaped cross-section, making it easy to access the edge of the bed through the U-shaped opening and move forward and backward along the edge to adjust the mounting position. The adjustment mechanism allows for height and lateral position adjustment of the fixture. The support plate of the fixture facilitates limb placement, and the arc-shaped clamping plate locks the limb through a locking assembly, enabling the fixation of different parts of the patient's legs and limbs and supporting and elevating the legs and limbs. This facilitates medical personnel to fix the legs of different patients and perform surgeries according to their conditions, preventing leg movement from affecting normal surgical work. The fixing mechanism can conveniently adjust the angle of the leg fixation through the angle adjustment assembly at the bottom, such as laying the legs flat, tilting them upward, or tilting them downward, to accommodate a wide range of surgical situations.

[0020] 2. The mounting frame of the present invention is mounted on the edge of the bed through the first fixing screw. The tightening plate can increase the contact area between the first fixing screw and the edge of the bed, making the mounting frame more secure.

[0021] 3. The adjustment mechanism of the present invention realizes height adjustment through the cooperation of the inner column and the outer tube. The inner column moves vertically in the outer tube. When the height of the top of the inner column is appropriate, the second fixing screw passes through the inner column and the outer tube to fix the two together, so that the height adjustment can be realized conveniently and quickly; the extension rod moves horizontally at the top of the inner column. When the horizontal position of the fixing mechanism on the extension rod is appropriate, the third fixing screw passes through the top of the inner column and the extension rod to fix the two together, so that the horizontal position adjustment can be realized conveniently and quickly.

[0022] 4. The fixing mechanism of the present invention is arranged on the support seat, and the support seat is arranged on the extension rods at both ends. The two reinforcement rods and the support seat form a stable triangular structure on the extension rods, which is more conducive to bearing weight when the leg limbs are placed.

[0023] 5. The fixing mechanism of the present invention is hinged to the support plate on the support seat through a connecting block. The fixing mechanism as a whole can be rotated back and forth along the transverse axis, and the rotating connecting block is then locked by the pull rod on the support plate, so as to facilitate rapid adjustment of the limb posture according to the patient's condition.

[0024] 6. An adapter block is provided at the inner end of the pull rod of the utility model, which enters the adapter slot to lock the fixed angle. The spring is in a compressed state under normal circumstances, and the adapter block is pressed into the adapter slot by elastic force, which can prevent the patient's legs from moving around and causing the adapter block to fall out, thereby ensuring the stability of the entire angle adjustment assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic diagram of the three-dimensional structure of the utility model

[0026] Figure 2 Diagram of the disassembled state of the mounting frame and adjustment mechanism

[0027] Figure 3 Schematic diagram of the fixing mechanism and locking assembly structure (fixing mechanism radially sectioned)

[0028] Figure 4 Schematic diagram of the locking assembly structure (bracing plate and connecting frame radially divided)

[0029] Among them: 1-mounting frame 2-adjusting mechanism 3-fixing mechanism 4-locking assembly 11-first fixing screw 12-fastening plate 21-first through hole 22-second screw hole 23-outer tube 24-second fixing screw 25-inner column 25.1-through groove 26-extension rod (26.1-third screw hole) 27-third fixing screw 28-support seat 29-reinforcement rod 31-support plate 32-connecting block 32.1-rotating shaft 33-placement plate 34-clamping plate 34.1-hinged rod 35-adaptation groove 36-connecting frame 36.1-movable hole 37-spring 38-adaptation block 39-pull rod 39.1-handle 41-vertical plate 42-fastening bolt. DETAILED DESCRIPTION

[0030] The following describes the embodiments of the present invention in detail, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0031] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0033] like Figure 1-4 As shown, the present invention provides a patient limb fixation device for an operating room, comprising a mounting frame 1, an adjustment mechanism 2, a fixing mechanism 3, and a locking assembly 4. The mounting frame 1 is a longitudinally arranged elongated structure, having a U-shaped cross-section and an opening facing laterally inward (i.e., the side laterally adjacent to the bed). The mounting frame 1 is provided with a fastening assembly for attaching the mounting frame 1 to the edge of the bed; the fixing mechanism 3 is arranged on the laterally inward side of the mounting frame 1 through the adjustment mechanism 2 and can be adjusted vertically and laterally by the adjustment mechanism 2. The fixing mechanism 3 comprises a support plate 33 and clamping plates 34 arranged on both lateral sides of the support plate 33. The two clamping plates 34 are laterally bent relative to each other in an arc shape, and the bottom of each clamping plate 34 is rotatable along the longitudinal axis and connected to the lateral side of the support plate 33. The locking assembly 4 is arranged at the top of the two clamping plates 34 of the fixing mechanism 3 for enclosing and locking the tops of the two clamping plates 34. An angle adjustment assembly is provided between the support plate 33 and the adjustment mechanism 2 for locking the fixing mechanism 3 after rotation along the transverse axis. In this embodiment, the length direction of the mounting frame 1 is the longitudinal direction, which is also the length direction of the bed, and the direction toward the end of the bed is the forward direction; the width direction of the mounting frame 1 is the transverse direction, which is also the width direction of the bed.

[0034] The fastening assembly of the mounting frame 1 includes first fixing screws 11 provided at both longitudinal ends of the mounting frame 1. Each first fixing screw 11 is vertically threadedly connected to the mounting frame 1. The tail end of each first fixing screw 11 vertically enters the mounting frame 1 and is fixedly provided with a clamping plate 12. The surface of the clamping plate 12 is axially arranged perpendicular to the first fixing screw 11. In this embodiment, two first fixing screws 11 are provided at each end of the mounting frame 1, located at the top and bottom respectively. Therefore, the mounting frame 1 is mounted to the edge of the bed via four first fixing screws 11. During installation, the U-shaped opening of the mounting frame 1 is first inserted into the edge of the bed and moved longitudinally to adjust the installation position. Then, all first fixing screws 11 are tightened so that each clamping plate 12 is firmly pressed against the top or bottom surface of the bed edge, thereby achieving the longitudinal fixation of the mounting frame 1.

[0035] The adjustment mechanism 2 includes a vertical adjustment component arranged on the top of the mounting frame 1 and a horizontal adjustment component arranged on the top of the vertical adjustment component. The vertical adjustment component includes an inner column 25 and an outer tube 23 that are coupled inside and outside. The lower end of the outer tube 23 is fixedly connected to the top of the mounting frame 1. A first through hole 21 is provided on the outer tube 23 and multiple first through holes 21 are vertically spaced apart. A second screw hole 22 is provided on the inner column 25 and multiple second screw holes 22 are vertically spaced apart. A second fixing screw 24 is provided on the outer tube 23 and passes through the first through hole 21 and is threadedly connected to the second screw hole 22 of the inner column 25.

[0036] The lateral adjustment assembly includes an extension rod 26 that passes horizontally through the top of the inner column 25 and a support seat 28 arranged at the lateral inner end of the extension rod 26. A through groove 26.1 is provided on the top of the inner column 25 for the extension rod 26 to move horizontally. A third screw hole 26.1 is vertically penetrated on the extension rod 26, and multiple third screw holes 26.1 are arranged horizontally at intervals. A third fixing screw 27 is provided on the top of the inner column 25 and is threadedly connected to the third screw hole 26.1 downward.

[0037] In this embodiment, the support base 28 is a strip-shaped structure arranged longitudinally. The support base 28 is inserted into the transverse inner end of the extension rod 26, and reinforcement rods 29 are provided between the ends of the support base 28 and the extension rod 26. The two reinforcement rods 29 and the support base 28 form a stable triangular structure on the extension rod 26, which is conducive to bearing the weight of the patient's legs when placed.

[0038] The angle adjustment assembly includes a connecting block 32 arranged at the bottom of the support plate 33 and a rotating shaft 32.1 fixedly penetrated on the connecting block 32. Two support plates 31 are arranged horizontally at intervals on the top of the support seat 28. The connecting block 32 is located between the two support plates 31. Both ends of the rotating shaft 32.1 pass through and are hinged to the corresponding support plates 31 so that the connecting block 32 can rotate along the transverse axis. A locking assembly is provided on each support plate 31 for locking the rotation angle of the rotating shaft 32.1.

[0039] The locking assembly includes a connecting frame 36 fixedly connected to the lateral outer surface of the support plate 31 and a pull rod 39 that is passed through the connecting frame 36 and can only move laterally. An adaptation groove 35 is provided at the end of the rotating shaft 32.1, and latch teeth are provided at circumferential intervals on the inner wall of the adaptation groove 35. An adaptation block 38 is provided at the inner end of the pull rod 39, which corresponds to the shape of the adaptation groove 35, that is, the adaptation block 38 will be provided with a latch tooth corresponding to the groove. A spring 37 is passed through the pull rod 39, and the inner and outer ends of the spring 37 are respectively connected to the adaptation block 38 and the connecting frame 36, that is, the inner end of the spring 37 is fixedly connected to the lateral outer end of the adaptation block 38 (the end away from the support plate 31), and the outer end of the spring 37 is fixedly connected to the lateral inner end of the connecting frame 36 (the end adjacent to the support plate 31).

[0040] In this embodiment, the two support plates 31 are perpendicular to the horizontal direction. The connecting frame 36 is a U-shaped structure. The opening of the U-shaped structure of the connecting frame 36 is fixedly connected to the support plate 31. The bottom of the U-shaped structure of the connecting frame 36 is flat and the plate surface is perpendicular to the horizontal direction. The movable hole 36.1 is opened in the bottom of the U-shaped structure of the connecting frame 36. The cross-section of the pull rod 39 is square. The movable hole 36.1 corresponds to the pull rod 39, which restricts the pull rod 39 to only horizontal movement. The pull rod 39 is provided with a handle 39.1 on the outside of the connecting frame 36 to facilitate pulling the pull rod 39 laterally.

[0041] The locking assembly 4 includes a vertical plate 41 positioned at the top of each clamping plate 34. Locking bolts 42 are used to securely hold the two clamping plates 34 together. In this embodiment, each clamping plate 34 is hinged to the lateral side of the support plate 33 via a hinged rod 34.1. For patient comfort, a flexible material (such as a silicone pad or cotton pad) may be placed on the inside of the clamping plate 34 that contacts the patient's skin. Vertical plates 41 are provided at each longitudinal end of each clamping plate 34, thereby securing the two clamping plates 34 together via two pairs of vertical plates 41.

[0042] The working principle of this utility model is as follows:

[0043] Adjust the longitudinal position of the mounting frame 1 on the bed - insert the U-shaped opening of the mounting frame 1 into the edge of the bed and move it longitudinally to adjust the installation position, then tighten all the first fixing screws 11 so that each clamping plate 12 is firmly pressed against the top or bottom surface of the bed edge to achieve longitudinal fixation of the mounting frame 1.

[0044] Adjust the height of the fixing device 3 on the bed - move the inner column 25 vertically relative to the outer tube 23, and when it reaches a suitable height, pass the second fixing screw 24 through the first through hole 21 and the second screw hole 22 for threaded connection, thereby fixing the height of the inner column 25.

[0045] Adjust the lateral position of the fixing device 3 on the bed - move the extension rod 26 laterally in the through slot 26.1 at the top of the inner column 25. When it reaches the appropriate position, thread the third fixing screw 27 downward into the third screw hole 26.1. At this time, the lateral position of the extension rod 26 is fixed, and thus the lateral position of the fixing device 3 is also fixed.

[0046] Adjust the fixing angle of the fixing device 3 - pull the pull rod 39 outward to disengage the adapter block 38 from the adapter slot 35. At this time, the connecting block 32 and the fixing device 3 above can be rotated. When rotated forward or backward to a suitable angle, release the pull rod 39, and the spring 37 presses the adapter block 38 into the adapter slot 35 again to lock the fixing angle of the fixing device 3.

[0047] When fixing the patient's legs: directly place the patient's legs on the top of the placement plate 33 and between the two clamping plates 34, move the two clamping plates 34 close together, and bolt the vertical plates 41 of the two clamping plates 34 together through the locking bolts 42 to achieve the enclosed locking of the two clamping plates 34.

Claims

1. A limb fixation device for patients in an operating room, characterized in that: It comprises a mounting frame (1), an adjusting mechanism (2), a fixing mechanism (3), and a locking assembly (4). The mounting frame (1) is a long strip structure arranged in the longitudinal direction, the mounting frame (1) has a U-shaped cross section and an opening facing the transverse inner side, and a fastening assembly is provided on the mounting frame (1) for mounting the mounting frame (1) on the edge of the bed; The fixing mechanism (3) is arranged on the lateral inner side of the mounting frame (1) through the adjusting mechanism (2) and can be adjusted vertically and horizontally through the adjusting mechanism (2). The fixing mechanism (3) comprises a support plate (33) and clamping plates (34) arranged on both lateral sides of the support plate (33). The two clamping plates (34) are bent relative to each other laterally and the bottom of each clamping plate (34) is hinged to the lateral side of the support plate (33) and can rotate along the longitudinal axis. The locking assembly (4) is arranged on the top of the two clamping plates (34) of the fixing mechanism (3) and is used to enclose and lock the two clamping plates (34). An angle adjustment assembly is provided between the support plate (33) and the adjusting mechanism (2) and is used to lock the fixing mechanism (3) after rotating along the lateral axis.

2. The operating room patient limb fixation device according to claim 1, characterized in that: The fastening assembly comprises first fixing screws (11) arranged at both longitudinal ends of the mounting frame (1), each first fixing screw (11) being vertically threadedly connected to the mounting frame (1), the tail end of each first fixing screw (11) vertically entering into the mounting frame (1) and being fixedly provided with a clamping plate (12), the plate surface of the clamping plate (12) being arranged perpendicular to the axial direction of the first fixing screw (11).

3. The operating room patient limb fixation device according to claim 1, characterized in that: The adjustment mechanism (2) comprises a vertical adjustment component arranged at the top of the mounting frame (1) and a horizontal adjustment component arranged at the top of the vertical adjustment component. The vertical adjustment component comprises an inner column (25) and an outer tube (23) which are connected inside and outside. The lower end of the outer tube (23) is fixedly connected to the top of the mounting frame (1). The outer tube (23) is provided with a first through hole (21) which runs horizontally through the outer tube (23) and a plurality of the first through holes (21) are arranged vertically at intervals. The inner column (25) is provided with a second screw hole (22) which runs horizontally through the inner column (25) and a plurality of the second screw holes (22) are arranged vertically at intervals. The outer tube (23) is provided with a second fixing screw (24) which passes through the first through hole (21) and is threadedly connected to the second screw hole (22) of the inner column (25).

4. The operating room patient limb fixation device as claimed in claim 3, characterized in that: The lateral adjustment component comprises an extension rod (26) which passes through the top of the inner column (25) transversely and a support seat (28) arranged at the transverse inner end of the extension rod (26); a third screw hole (26.1) which passes through vertically is opened on the extension rod (26) and a plurality of the third screw holes (26.1) are arranged transversely at intervals; a third fixing screw (27) is arranged at the top of the inner column (25) and is threadedly connected to the third screw hole (26.1) downwardly.

5. The operating room patient limb fixation device as claimed in claim 4, characterized in that: The support seat (28) is in the shape of a strip arranged in the longitudinal direction. The support seat (28) is passed through the lateral inner end of the extension rod (26), and reinforcement rods (29) are provided between the two ends of the support seat (28) and the extension rod (26).

6. The operating room patient limb fixation device according to claim 4, characterized in that: The angle adjustment assembly comprises a connecting block (32) arranged at the bottom of the support plate (33) and a rotating shaft (32.1) fixedly penetrated through the connecting block (32); two support plates (31) are arranged transversely at intervals on the top of the support seat (28); the connecting block (32) is located between the two support plates (31); both ends of the rotating shaft (32.1) penetrate through and are hinged to the corresponding support plates (31) so that the connecting block (32) can rotate along the transverse axis; each support plate (31) is provided with a locking assembly for locking the rotation angle of the rotating shaft (32.1).

7. The operating room patient limb fixation device according to claim 6, characterized in that: The locking assembly comprises a connecting frame (36) fixedly connected to the lateral outer surface of the support plate (31) and a pull rod (39) passing through the connecting frame (36) and movable only laterally. An adapting groove (35) is provided at the end of the rotating shaft (32.1), and latching teeth are arranged at intervals in the circumferential direction on the inner wall of the adapting groove (35). An adapting block (38) corresponding in shape to the adapting groove (35) is provided at the inner end of the pull rod (39). A spring (37) is passed through the pull rod (39), and the inner and outer ends of the spring (37) are respectively connected to the adapting block (38) and the connecting frame (36). The spring (37) is in a compressed state under normal conditions to press the adapting block (38) into the adapting groove (35) to lock the rotating shaft (32.1).

8. The device for fixing a patient's limb in an operating room as claimed in claim 7, characterized in that: The pull rod (39) is provided with a handle (39.1) outside the connecting frame (36).

9. The operating room patient limb fixation device according to claim 7, characterized in that: The cross section of the pull rod (39) is square, and the connecting frame (36) is provided with a square movable hole (36.1) corresponding to the pull rod (39) for limiting the pull rod (39) to move only horizontally.

10. The operating room patient limb fixation device according to claim 1, characterized in that: The locking assembly (4) comprises a vertical plate (41) arranged on the top of each clamping plate (34), and the vertical plates (41) of the two clamping plates (34) are bolted together to lock the two clamping plates (34).

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