CN213076391U

CN213076391U - Shank fixing device and orthopedics sick bed system

Info

Publication number: CN213076391U
Application number: CN202020965689.2U
Authority: CN
Inventors: 廖红兴; 张志辉; 王云蕾; 范云平; 林颖
Original assignee: Shanghai Microport Medical Group Co Ltd; Meizhou Peoples Hospital
Current assignee: Shanghai Weiwei Zhiling Medical Technology Co Ltd; Meizhou Peoples Hospital
Priority date: 2020-05-29
Filing date: 2020-05-29
Publication date: 2021-04-30
Anticipated expiration: 2030-05-29

Abstract

The utility model provides a shank fixing device and orthopedics sick bed system, include: a leg rest assembly and a bracket assembly; the bracket component comprises a cross bar connecting component, a fluted disc, a locking component and a connecting rod fixing component, the connecting rod fixing component is rotatably arranged on the fluted disc around the axis of the fluted disc, and the locking component is arranged between the connecting rod fixing component and the fluted disc; the locking component is used for switching between a locking state and an unlocking state; the locking part is configured to limit the rotation of the connecting rod fixing part towards the direction of the cross rod connecting part when in a locking state; the lock member is configured to release the restriction of the rotation of the link fixing member in the direction toward the crossbar connecting member when the lock member is in the unlocked state; the leg support assembly is arranged on the connecting rod fixing part. The utility model discloses can be according to the operation needs, the angle that the knee was bent to adjustment patient's shank, use comfort is high, and the installation is dismantled conveniently, and assembly stability is high, can satisfy aseptic requirement.

Description

Shank fixing device and orthopedics sick bed system

Technical Field

The utility model relates to the technical field of medical equipment, in particular to a shank fixing device and orthopedics sick bed system.

Background

In operations such as knee joint replacement and knee arthroscopy, the legs of a patient need to be fixed at the extension or flexion positions at different angles according to the requirements of different stages of the operations. In the operation process of osteotomy and the like of a doctor in the operation, the lower limbs need to be firmly fixed, and the influence of the shake of the knee joint on the operation is avoided. At present, the conventional knee joint is fixed, an assistant is used for holding the leg of a patient, the leg is held by the assistant, the operation needs enough assistant, the operation is complex, the investment of the operation personnel and the labor intensity of the assistant are increased, and the fixed position is easy to deviate to influence the operation effect.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a shank fixing device and orthopedics sick bed system to solve the problem that needs to pass through artifical fixed patient's low limbs among the prior art.

In order to solve the technical problem, the utility model provides a shank fixing device, it includes: a leg rest assembly and a bracket assembly;

the bracket assembly comprises a cross bar connecting component, a fluted disc, a locking component and a connecting rod fixing component, the fluted disc is fixedly connected with the cross bar connecting component, the connecting rod fixing component is rotatably arranged on the fluted disc around the axis of the fluted disc, and the locking component is arranged between the connecting rod fixing component and the fluted disc; the locking component is used for switching between a locking state and an unlocking state;

the locking member is configured to restrict rotation of the link fixing member in a direction toward the crossbar connecting member in a locked state; the lock member is configured to release the restriction of the rotation of the link fixing member in the direction toward the crossbar connecting member when the lock member is in the unlocked state;

the leg support assembly is arranged on the connecting rod fixing part.

Optionally, the locking component includes: a locking pin, an adjustment key and a spring;

the locking pin is movably arranged along the axial direction of the connecting rod fixing part;

the springs are respectively connected with the locking pins and the connecting rod fixing parts and apply elastic force towards the fluted disc to the locking pins;

the adjustment key is configured to move between a sprung position and a depressed position, the locking pin is engaged with the toothed disc under the spring force of the spring when the adjustment key is in the sprung position, and the locking member is configured to the locked condition;

when the adjusting key is in the pressed position, the adjusting key pushes the locking pin to move towards the direction away from the fluted disc against the elastic force of the spring and separates the locking pin from the fluted disc, and the locking part is configured to be in an unlocked state.

Optionally, the locking pin includes a positioning column extending in a radial direction of the connecting rod fixing part, and the adjustment key includes an inclined surface that is inclined downward toward the fluted disc along a pressing direction of the adjustment key; the inclined plane is abutted against the periphery of the positioning column.

Optionally, the adjusting key further includes a limiting surface, and the limiting surface extends along the radial direction of the fluted disc and is arranged toward the inclined surface; when the adjusting key is located at the bouncing position, the limiting surface is abutted against the positioning column so as to limit the degree of freedom of the adjusting key along the bouncing direction.

Optionally, the axis of the fluted disc is arranged along a horizontal direction, the fluted disc comprises a first tooth portion and a second tooth portion which are arranged around the periphery of the fluted disc, a vertical plane passing through the axis of the fluted disc is used as a dividing plane, and the first tooth portion and the second tooth portion are respectively positioned at two sides of the dividing plane; the teeth of the first tooth part and the teeth of the second tooth part are both ratchet teeth facing the direction of the division surface.

Optionally, a horizontal plane passing through an axis of the toothed disc is used as a base plane, and the first tooth portion and the second tooth portion are located on a side of the base plane away from the cross bar connecting component.

Optionally, the leg rest assembly includes a leg rest, a connecting rod and a locking nut;

the leg support is provided with a connecting shaft, the connecting shaft is detachably arranged on the connecting rod through the locking nut, and the angle of the connecting shaft relative to the connecting rod is adjustably arranged; the leg support is provided with an arc-shaped supporting surface, and the extending direction of the supporting surface is vertical to the connecting shaft;

the connecting rod is detachably arranged on the connecting rod fixing part along the axial direction, and the axial position of the connecting rod relative to the connecting rod fixing part is adjustably arranged.

Optionally, the leg support includes a plurality of through holes for the binding band circumferentially distributed along the support surface.

Optionally, the leg fixing device further comprises an isolation film; the isolation film is used for covering the bracket component and isolating the leg support component from the bracket component.

In order to solve the technical problem, the utility model also provides an orthopedics sick bed system, it includes: the leg fixing device comprises a leg fixing device body, a sickbed and a lifting device, wherein the sickbed comprises a cross bar which is arranged on the sickbed; the leg fixing device is detachably arranged on the cross rod through the cross rod connecting part.

To sum up, in the utility model provides a shank fixing device and orthopedics sick bed system: the leg fixing device includes: a leg rest assembly and a bracket assembly; the bracket assembly comprises a cross bar connecting component, a fluted disc, a locking component and a connecting rod fixing component, the fluted disc is fixedly connected with the cross bar connecting component, the connecting rod fixing component is rotatably arranged on the fluted disc around the axis of the fluted disc, and the locking component is arranged between the connecting rod fixing component and the fluted disc; the locking component is used for switching between a locking state and an unlocking state; the locking member is configured to restrict rotation of the link fixing member in a direction toward the crossbar connecting member in a locked state; the lock member is configured to release the restriction of the rotation of the link fixing member in the direction toward the crossbar connecting member when the lock member is in the unlocked state; the leg support assembly is detachably arranged on the connecting rod fixing part.

With the arrangement, when the locking component is in a locking state, the rotation of the connecting rod fixing component in the direction away from the cross rod connecting component is not limited, so that an operator can conveniently pull the connecting rod fixing component to rotate in the direction away from the cross rod connecting component to adjust the position of the leg support component (mainly upwards adjust the position of the lower limb of a patient); the rotation of the connecting rod fixing part towards the direction of the cross rod connecting part is limited, and the connecting rod fixing part is positioned under the action of the gravity of the lower limb of the patient after being adjusted to a proper angle, so that the lower limb of the patient can be reliably fixed at a proper position. Further, by configuring the locking member to be in the unlocked state, the limitation of the rotation of the connecting rod fixing member in the direction toward the cross rod connecting member can be released, so that the leg rest assembly can be freely adjusted up and down, and can be used for adjusting the position of the leg rest assembly and also can be put down after the operation is completed. The leg support assembly is detachably arranged on the cross bar of the sickbed, so that the leg fixing device can be conveniently assembled on or disassembled from the sickbed, and the leg support assembly is detachably arranged on the connecting rod fixing part, so that the leg support assembly can be rapidly and conveniently assembled, and can be conveniently disassembled for aseptic disinfection. Therefore, the lower limbs of the patient can be fixed through the leg fixing device, the knee bending angle of the leg of the patient can be adjusted according to the operation requirement, and the leg can be fixed at any suitable position. The leg support assembly is convenient to adjust and high in using comfort, each part of the leg fixing device is convenient to mount and dismount, and the stability is high after assembly, so that the aseptic requirement can be met.

Drawings

Those skilled in the art will appreciate that the drawings are provided for a better understanding of the invention and do not constitute any limitation on the scope of the invention. Wherein:

fig. 1 is a schematic view of an orthopedic hospital bed system according to an embodiment of the present invention;

fig. 2 is a schematic view of a leg fixing device according to an embodiment of the present invention;

fig. 3 is a schematic side view of a leg fixing device according to an embodiment of the present invention;

FIG. 4 is a cross-sectional view of the leg attachment device shown in FIG. 3 taken along line A-A;

FIG. 5 is an enlarged partial view of the leg attachment shown in FIG. 4;

fig. 6 is a schematic view of a locking member according to an embodiment of the present invention;

fig. 7 is a schematic view of an adjustment key according to an embodiment of the present invention;

fig. 8 is a schematic view of a toothed disc according to an embodiment of the present invention.

In the drawings:

01-leg fixation means; 02-a hospital bed; 03-a cross bar; 10-a leg rest assembly; 11-leg rest; 111-a connecting shaft; 112-bearing surface; 113-perforating the binding band; 12-a connecting rod; 13-a locking nut; 20-a bracket assembly; 21-a cross-bar connection member; 211-positioning the adjusting block; 212-cap nut; 213-a substrate; 22-a fluted disc; 221-a first tooth; 222-a second tooth; 23-a locking member; 231-locking pin; 231 a-locating post; 232-adjustment key; 232 a-inclined plane; 232 b-a limiting surface; 233-a spring; 24-a link securing member; 241-a locking nut; 25-interface.

Detailed Description

To make the objects, advantages and features of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. It is to be noted that the drawings are in simplified form and are not to scale, but rather are provided for the purpose of facilitating and distinctly claiming the embodiments of the present invention. Further, the structures illustrated in the drawings are often part of actual structures. In particular, the drawings may have different emphasis points and may sometimes be scaled differently.

As used in this application, the singular forms "a", "an" and "the" include plural referents, the term "or" is generally employed in a sense including "and/or," the terms "a", "an" and "the" are generally employed in a sense including "at least one", the terms "at least two" and "two or more" are generally employed in a sense including "two or more", and moreover, the terms "first", "second" and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or imply that there is a number of technical features being indicated. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include one or at least two of the features, the term "proximal" generally being the end near the operator, the term "distal" generally being the end near the lesion of the patient, the terms "end" and "proximal" and "distal" generally referring to the corresponding two parts, including not only the end points, unless the context clearly dictates otherwise.

The core idea of the utility model is to provide a leg fixing device and an orthopedic sickbed system to solve the problem that the lower limbs of patients need to be fixed manually in the prior art.

The following description refers to the accompanying drawings.

Referring to fig. 1 to 8, fig. 1 is a schematic view of an orthopedic bed system according to an embodiment of the present invention; fig. 2 is a schematic view of a leg fixing device according to an embodiment of the present invention; fig. 3 is a schematic side view of a leg fixing device according to an embodiment of the present invention; FIG. 4 is a cross-sectional view of the leg attachment device shown in FIG. 3 taken along line A-A; FIG. 5 is an enlarged partial view of the leg attachment shown in FIG. 4; fig. 6 is a schematic view of a locking member according to an embodiment of the present invention; fig. 7 is a schematic view of an adjustment key according to an embodiment of the present invention; fig. 8 is a schematic view of a toothed disc according to an embodiment of the present invention.

As shown in fig. 1, an embodiment of the present invention provides an orthopedic bed system, which includes: the hospital bed 02 comprises two cross bars 03, wherein the two cross bars 03 are oppositely arranged on two sides of the hospital bed 02 along two long edges of the hospital bed 02; the leg fixing device 01 is detachably disposed on at least one of the cross bars 03. Generally, the sickbed 02 is provided with a cross bar 03 along the long edge, and the leg fixing device 01 is fixed by the cross bar 03, so that the position of the leg fixing device 01 along the long edge of the sickbed 02 can be conveniently adjusted and positioned to adapt to different leg positions of patients with different heights.

Further, as can be seen in fig. 2, an embodiment of the present invention provides a leg fixing device 01, which includes: leg rest assembly 10 and bracket assembly 20; the bracket assembly 20 includes a cross bar connecting member 21, a toothed disc 22, a locking member 23, and a connecting rod fixing member 24, the toothed disc 22 is fixedly connected to the cross bar connecting member 21, the connecting rod fixing member 24 is rotatably disposed on the toothed disc 22 around an axis of the toothed disc 22, and the locking member 23 is disposed between the connecting rod fixing member 24 and the toothed disc 22; the locking component 23 is used for switching between a locking state and an unlocking state; the locking member 23 is configured to restrict the rotation of the link fixing member 24 in the direction of the crossbar connecting member 21 in the locked state; when the lock member 23 is configured in the unlocked state, the restriction of the rotation of the link fixing member 24 in the direction toward the crossbar connecting member 21 is released; the leg rest assembly 10 is removably attached to the link securing member 24 for supporting the patient's legs.

Optionally, the cross bar connecting part 21 is used for being detachably connected to the cross bar 03 of the hospital bed 02, so that the leg fixing device 01 and the hospital bed 02 can be assembled and disassembled conveniently. In one example, the rail connecting part 21 includes a base plate 213 and two positioning adjusting blocks 211, the base plate 213 is parallel to the extending direction of the rail 03, and the two positioning adjusting blocks 211 are fixed on the base plate 213. The two positioning adjustment blocks 211 are arranged at intervals along the extension direction of the cross bar 03 and are detachably connected to the cross bar 03 by means of a nut 212 with a cap, respectively. The position adjusting block 211 can be fixed to the crossbar 03 by tightening the nut 212 with a cap, thereby fixing the position of the crossbar connecting member 21 with respect to the crossbar 03. Preferably, the rotation of the link fixing member 24 about the toothed plate 22 is above the horizontal plane of the cross-bar 03 to accommodate the support of the leg rest assembly 10 on the patient's leg. Preferably, the axis of the toothed disc 22 is perpendicular to the extension direction of said cross-bar 03.

Referring to fig. 2 and 8, for the sake of convenience, a vertical plane (a plane passing through a gravity direction line in the earth gravity field, which is perpendicular to a horizontal plane) passing through the axis of the toothed disc 22 is referred to as an interface 25. While the link fixing member 24 rotates about the axis of the toothed plate 22 in a direction away from the crossbar connecting member 21, that is, toward the dividing plane 25, in the leg fixing device 01 shown in fig. 2, the link fixing member 24 is located on the left side of the dividing plane 25, and rotates in a direction away from the crossbar connecting member 21 in a clockwise direction toward the dividing plane 25, and once the link fixing member 24 moves in a clockwise direction across the dividing plane 25 into the right side of the dividing plane 25, continues to rotate in a clockwise direction away from the dividing plane 25, that is, rotates in a direction toward the crossbar connecting member 21. In practical use, for one leg of a patient, the leg fixing device 01 only uses the rotation of the connecting rod fixing part 24 around the fluted disc 22 on one side of the interface 25 to realize the adjustment of the position of the leg on one side of the patient, and the rotation of the connecting rod fixing part 24 around the fluted disc 22 on the other side of the interface 25 is adapted to the leg on the other side of the patient, at this time, the leg fixing device 01 can be detached from the cross bar 03 on one side of the hospital bed 02, and the leg fixing device 01 can be assembled on the cross bar 03 on the other side by turning 180 degrees in the vertical direction, so that the connecting rod fixing part 24 can realize the adjustment of the position of the leg on the other side of the patient by rotating around the fluted disc 22. For example, in the orthopedic hospital bed system shown in fig. 1, a patient can lie on the hospital bed 02 with the head facing up to the left and the leg facing down to the right, and the leg fixing device 01 shown in the figure is mainly used for fitting the left leg of the patient. And when the leg fixing means 01 is provided on the cross bar 03 of the other side, it can be fitted to the right leg of the patient. It should be noted that the orthopedic bed system of the present embodiment is not limited to be provided with only one leg fixing device 01, and one leg fixing device 01 may be provided on the cross bars 03 on both sides.

When the locking member 23 is in the locked state, the link fixing member 24 can only rotate about the axis of the toothed plate 22 in a direction away from the crossbar connecting member 21. It will be appreciated that for the condition shown in figure 2, with the locking member 23 in the locked condition, the link securing member 24 can only rotate clockwise to the left of the interface 25 until the interface 25. Likewise, when the link fixing member 24 is on the right side of the division plane 25 and the locking member 23 is in the locked state, the link fixing member 24 can only rotate in the counterclockwise direction up to the division plane 25. So configured, when the locking component 23 is in the locked state, the operator can pull the leg rest assembly 10 and the connecting rod fixing component 24 to raise the position of the leg of the patient, and when the operator is free, the locking component 23 restricts the leg rest assembly 10 from moving downwards, thereby positioning and fixing the leg of the patient.

When the lock member 23 is in the unlocked state, the restriction of the rotation of the link fixing member 24 in the direction toward the crossbar connecting member 21 is released. When the locking member 23 is in the unlocked state, the link fixing member 24 can freely rotate about the axis of the toothed plate 22 without restriction. Of course, the rotation of the link securing member 24 about the toothed disc 22 is preferably limited above the horizontal plane of the cross bar 03 to avoid rotation of the link securing member 24 into the inactive area below the patient's bed 02. When the operator needs to lower the height of the patient's leg or lay the patient's leg flat, the locking member 23 can be configured to be unlocked, and the patient's leg and the leg rest assembly 10 can be held down slowly, and after reaching a predetermined height, the locking member 23 can be further configured to be locked to continue positioning the patient's leg. Through the configuration, the lower limbs of the patient can be fixed through the leg fixing device 01, the knee bending angle of the leg of the patient can be adjusted according to the operation requirement, and the leg can be fixed at any suitable position. The leg rest assembly 10 is convenient to adjust and high in using comfort.

Referring to fig. 5 to 7, preferably, the locking member 23 includes: a locking pin 231, an adjustment key 232, and a spring 233; the locking pin 231 is movably provided in the axial direction of the link fixing part 24; the spring 233 connects the locking pin 231 and the link fixing member 24, respectively, and applies an elastic force to the locking pin 231 toward the gear plate 22; the adjustment key 232 is moved between a sprung position and a depressed position, the locking pin 231 is engaged with the toothed plate 22 by the elastic force of the spring 233 when the adjustment key 232 is in the sprung position, and the locking member 23 is configured in the locked state; when the adjustment key 232 is in the depressed position, the locking pin 231 is pushed to move away from the toothed plate 22 against the elastic force of the spring 233, and is separated from the toothed plate 22, and the locking member 23 is configured to be in an unlocked state. One end of the locking pin 231 toward the chainring 22 is engageable with the chainring 22, and when the locking pin 231 is engaged with the chainring 22, the locking pin 231 limits circumferential rotation of the link fixed member 24 relative to the chainring 22 in a direction toward the cross bar connecting member 21. The spring 233 can apply an elastic force to the lock pin 231 toward the toothed plate 22, and when the adjustment key 232 is not pressed and is in the sprung position, the end of the lock pin 231 is kept engaged with the toothed plate 22 by the elastic force of the spring 233, so that the lock member 23 is configured in the locked state. When the adjustment key 232 is pressed to switch to the pressed position, the adjustment key 232 pushes the locking pin 231 to move away from the toothed plate 22 against the elastic force of the spring 233, so that the locking pin 231 is separated from the toothed plate 22 and disengaged, the locking pin 231 releases the restriction on the rotation direction of the link fixing member 24, and the locking member 23 is configured to be in the unlocked state.

Further, the locking pin 231 includes a positioning post 231a disposed perpendicular to the link fixing part 24, and the adjustment key 232 includes a slope 232a, and the slope 232a is declined toward the fluted disc 22 along the pressing direction of the adjustment key 232; the inclined surface 232a abuts against the outer periphery of the positioning post 231 a. Here, the pressing direction of the adjustment key 232 is a direction in which the adjustment key 232 moves from the pop-up position to the pressed position, and in the example shown in fig. 7, the adjustment key 232 moves to the right side in the drawing as the pressing direction. The inclined surface 232a is inclined in a direction of descending toward the toothed disc 22 along the pressing direction, that is, the inclined surface 232a is inclined in a direction of gradually approaching the toothed disc 22 along the pressing direction, so that when the adjustment key 232 moves along the pressing direction, the inclined surface 232a can push the positioning column 231a to move in a direction of separating from the toothed disc 22, thereby driving the locking pin 231 to separate from the toothed disc 22 and release the engagement.

Furthermore, the adjusting key 232 further includes a limiting surface 232b, and the limiting surface 232b extends along the radial direction of the fluted disc 22 and is arranged toward the direction of the inclined surface 232 a; when the adjusting key 232 is located at the pop-up position, the limiting surface 232b abuts against the positioning post 231a to limit the degree of freedom of the adjusting key 232 in the pop-up direction. It can be appreciated that when the adjustment key 232 is moved in the pressing direction, the inclined surface 232a pushes the positioning post 231a to move away from the gear plate 22, and at the same time, the spring 233 is compressed to store elastic potential energy. When the external force is removed to release the adjustment key 232, the spring 233 releases the stored elastic potential energy to push the positioning post 231a to move toward the gear plate 22, and further the inclined surface 232a pushes the adjustment key 232 to move along the pop-up direction (the pop-up direction is opposite to the pressing direction). When the external pressing force on the adjustment key 232 is suddenly removed, the elastic potential energy of the spring 233 is suddenly released to move the adjustment key 232 in the bounce direction, and the movement of the adjustment key 232 has a certain inertia, and the adjustment key 232 may be separated from the link fixing member 24 by the inertia. The limiting surface 232b is disposed to limit the movement of the adjusting key 232 along the bouncing direction by inertia so as to prevent the adjusting key from falling off.

Preferably, referring to fig. 8, the fluted disc 22 includes a first tooth portion 221 and a second tooth portion 222 disposed around an outer periphery of the fluted disc 22, and a vertical plane passing through an axis of the fluted disc 22 is used as a dividing plane 25, and the first tooth portion 221 and the second tooth portion 222 are respectively located on two sides of the dividing plane 25; the teeth of the first tooth portion 221 and the second tooth portion 222 are both ratchet teeth facing the direction of the dividing plane 25. Suitably, the end of the locking pin 231 facing towards the toothed plate 22 has a corresponding tooth tip shaped to match the shape of the ratchet teeth to engage with the latter. When the tips of the teeth engage the teeth, only circumferential movement of the locking pin 231 about the toothed plate 22 away from the interface surface 25 is restricted, and circumferential movement of the locking pin 231 about the toothed plate 22 toward the interface surface 25 is not restricted. When the connecting rod fixing part 24 is pulled to rotate around the axis of the fluted disc 22 towards the direction of the interface 25, the tooth end of the adjusting key 232 can be driven to move through the ratchet. Thereby, the connecting rod fixing part 24 can be limited to rotate around the axis of the fluted disc 22 towards the direction of the cross rod connecting part 21, and the leg of the patient can be fixed. The first tooth 221 and the second tooth 222 are respectively located on two sides of the dividing plane 25, and can be adapted to fix different legs of a patient. Preferably, the teeth of the first tooth portion 221 and the second tooth portion 222 are symmetrically arranged about the dividing plane 25.

Further, the first tooth portion 221 and the second tooth portion 222 are located on a side of a horizontal plane passing through the axis of the toothed plate 22 as a base plane, the side being away from the crossbar connecting member 21. Since the link fixing part 24 only needs to be rotated above the crossbar 03 in use, the first tooth portion 221 and the second tooth portion 222 may be provided only on the upper side of the base surface. In fact, in a plane of the toothed disc 22, with the axis of the toothed disc 22 as the origin O, an intersection line of the base plane and the plane of the toothed disc 22 is an X-axis, and an intersection line of the dividing plane 25 and the plane of the toothed disc 22 is a Y-axis, a rectangular coordinate system is formed, and the first tooth 221 and the second tooth 222 are located in a first quadrant and a second quadrant of the rectangular coordinate system, respectively. Rotation of the link fixing member 24 about the axis of the toothed disc 22, corresponding to the adjustment of the position of one of the patient's legs, is also limited to one of the quadrants.

Referring to FIG. 3 in conjunction with FIG. 1, in an exemplary embodiment, the leg rest assembly 10 includes a leg rest 11, a connecting rod 12, and a locking nut 13; the leg rest 11 is provided with a connecting shaft 111, the connecting shaft 111 is detachably arranged on the connecting rod 12 through the locking nut 13, and the angle of the connecting shaft 111 relative to the connecting rod 12 is adjustably arranged; the leg support 11 is provided with an arc-shaped supporting surface 112, and the extending direction of the supporting surface 112 is perpendicular to the connecting shaft 111; the link 12 is detachably provided on the link fixing part 24 in the axial direction, and the axial position of the link 12 with respect to the link fixing part 24 is adjustably provided. The curved support surfaces 112 are intended to support the patient's legs and are shaped to substantially match the outer contour of the legs. If the locking nut 13 is a nut that can be conveniently manually locked by a wing nut or the like, the locking nut 13 can be loosened to rotate the leg support 11 to a proper angle around the connecting shaft 111 after the angle of the connecting rod fixing part 24 is adjusted to the proper position, so that the supporting surface 112 is attached to the leg of the patient, and the locking nut 13 is screwed. In some embodiments, the leg rest assembly 10 may include a plurality of leg rests 11 of different gauges to fit different patient leg sizes. Optionally, the leg rest 11 includes a plurality of through holes 113 for straps circumferentially distributed along the support surface 112. For a slightly larger support surface 112, the patient's leg can be secured to the support surface 112 by inserting the strap through the strap insertion hole 113. In other embodiments, to simplify the construction of the leg rest assembly 10, the same support surface 112 may be used that is slightly larger than the size of the leg in the human body scale, with straps to further secure the leg.

Referring to fig. 2 and 3, in an exemplary embodiment, the link fixing part 24 has a link slot adapted to the outer shape of the link 12, and the link slot extends along the axial direction of the link fixing part 24, preferably through the link fixing part. The connecting rod 12 may be inserted into the connecting rod groove, and further, the connecting rod fixing member 24 further includes a locking nut 241, and the locking nut 241 may lock an axial position of the connecting rod 12 with respect to the connecting rod groove. So configured, the axial position of the leg rest assembly 10 relative to the link securing element 24 can be easily adjusted. Preferably, the leg rest assembly 10 is preferably made of a metallic material to facilitate sterile sterilization thereof.

Because in the operation, the operation area needs to be kept in a sterile environment, the cross bar 03 and other parts of the sickbed 02 are generally difficult to realize the whole sterile disinfection, and the leg rest assembly 10 can be conveniently sterilized. Therefore, it is preferable that the leg fixing device 01 further includes a separation film (not shown); for covering the leg rest assembly 20 and isolating the legrest assembly 10 from the leg rest assembly 20. Specifically, the isolation film isolates the leg rest assembly 10 from a first side and the leg rest assembly 20 from a second side. It will be appreciated that the first side is the clean side, primarily the operative field. The second side is the contaminated side, which may be a contaminated area. In practice, before the leg rest assembly 10 is assembled to the bracket assembly 20, the isolating film may be covered on the bracket assembly 20 and the crossbar 03, and the connecting rod 12 may be inserted into the connecting rod groove against the isolating film, and the connecting rod 12 may be locked by the locking nut 241 through the isolating film. Thus, the isolation membrane isolates the entire legrest assembly 10 from the bracket assembly 20, meeting the surgical sterility requirements.

To sum up, in the utility model provides a shank fixing device and orthopedics sick bed system: the leg fixing device includes: a leg rest assembly and a bracket assembly; the bracket assembly comprises a cross bar connecting component, a fluted disc, a locking component and a connecting rod fixing component, the fluted disc is fixedly connected with the cross bar connecting component, the connecting rod fixing component is rotatably arranged on the fluted disc around the axis of the fluted disc, and the locking component is arranged between the connecting rod fixing component and the fluted disc; the locking component is used for switching between a locking state and an unlocking state; the locking member is configured to restrict rotation of the link fixing member in a direction toward the crossbar connecting member in a locked state; the lock member is configured to release the restriction of the rotation of the link fixing member in the direction toward the crossbar connecting member when the lock member is in the unlocked state; the leg support assembly is detachably arranged on the connecting rod fixing part. With the arrangement, when the locking component is in a locking state, the rotation of the connecting rod fixing component in the direction away from the cross rod connecting component is not limited, so that an operator can conveniently pull the connecting rod fixing component to rotate in the direction away from the cross rod connecting component to adjust the position of the leg support component (mainly upwards adjust the position of the lower limb of a patient); the rotation of the connecting rod fixing part towards the direction of the cross rod connecting part is limited, and the connecting rod fixing part is positioned under the action of the gravity of the lower limb of the patient after being adjusted to a proper angle, so that the lower limb of the patient can be reliably fixed at a proper position. Further, by configuring the locking member to be in the unlocked state, the limitation of the rotation of the connecting rod fixing member in the direction toward the cross rod connecting member can be released, so that the leg rest assembly can be freely adjusted up and down, and can be used for adjusting the position of the leg rest assembly and also can be put down after the operation is completed. The leg support assembly is detachably arranged on the cross bar of the sickbed, so that the leg fixing device can be conveniently assembled on or disassembled from the sickbed, and the leg support assembly is detachably arranged on the connecting rod fixing part, so that the leg support assembly can be rapidly and conveniently assembled, and can be conveniently disassembled for aseptic disinfection. Therefore, the lower limbs of the patient can be fixed through the leg fixing device, the knee bending angle of the leg of the patient can be adjusted according to the operation requirement, and the leg can be fixed at any suitable position. The leg support assembly is convenient to adjust and high in using comfort, each part of the leg fixing device is convenient to mount and dismount, and the stability is high after assembly, so that the aseptic requirement can be met.

The above description is only for the preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and any modification and modification made by those skilled in the art according to the above disclosure are all within the scope of the claims.

Claims

1. A leg fixing device, comprising: a leg rest assembly and a bracket assembly;

the leg support assembly is arranged on the connecting rod fixing part.

2. A leg fixation device as claimed in claim 1, wherein the locking means comprises: a locking pin, an adjustment key and a spring;

3. The leg attachment as claimed in claim 2, wherein the locking pin includes a locating post and the adjustment key includes a ramp that slopes downwardly toward the chainring in a direction of depression of the adjustment key; the inclined plane is abutted against the periphery of the positioning column.

4. The leg fixing device according to claim 3, wherein the adjustment key further comprises a stopper surface extending in a radial direction of the toothed plate and arranged toward the inclined surface; when the adjusting key is located at the bouncing position, the limiting surface is abutted against the positioning column so as to limit the degree of freedom of the adjusting key along the bouncing direction.

5. The leg immobilization apparatus of claim 1 wherein the axis of the chainring is horizontally oriented, the chainring including first and second teeth disposed about an outer periphery of the chainring with a vertical plane passing through the axis of the chainring serving as an interface, the first and second teeth being located on opposite sides of the interface; the teeth of the first tooth part and the teeth of the second tooth part are both ratchet teeth facing the direction of the division surface.

6. The leg attachment device of claim 5, wherein the first and second teeth are located on a side of the base surface remote from the crossbar connecting member, with a horizontal plane passing through an axis of the chainring as a base surface.

7. The leg immobilization apparatus of claim 1 wherein said leg rest assembly comprises a leg rest, a link, and a lock nut;

8. The leg immobilization apparatus of claim 7 wherein said leg support includes a plurality of strap perforations circumferentially distributed along said support surface.

9. The leg fixation device of claim 1 further comprising an isolation membrane; the isolation film is used for covering the bracket component and isolating the leg support component from the bracket component.

10. An orthopedic patient bed system, comprising: the leg fixing device and the hospital bed according to any one of claims 1 to 9, wherein the hospital bed comprises a cross bar, and the cross bar is arranged on the hospital bed; the leg fixing device is detachably arranged on the cross rod through the cross rod connecting part.