Foot internal rotation fixator for hip joint nuclear magnetic resonance examination and examination auxiliary instrument
By designing a hip MRI foot resonance fixator including limiting rod and adjustment components, the problem that patients find it difficult to maintain internal rotation for a long time is solved, and effective limits on the patient's feet and Angle adjustment improves the quality of NMR inspection.
Patent Information
- Application Number
- CN202420651713.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-29
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-03-29
AI Technical Summary
During hip MRI examination, patients with bone injuries or trauma find it difficult to maintain internal rotation of the foot for a long time, resulting in the foot being easily displaced and deformed, affecting the examination effect.
A hip magnetic resonance examination foot revolving fixator is designed, including a first shoe body, a second shoe body, a limiting rod and an adjustment assembly. The limit rod limits the distance between the shoe body, and the adjustment component adjusts the internal rotation angle of the foot through the gear and the tooth meshing mechanism to assist the patient in maintaining the internal rotation state.
Through the use of the fixator, patients can effectively assist in maintaining internal rotation of the foot, reducing foot displacement and deformation, and improving the effect of the MRI examination.
Smart Images
Figure CN222444103U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of nuclear magnetic resonance examination, in particular to a foot internal rotation fixer for nuclear magnetic resonance examination of hip joint and an examination auxiliary device. Background Art
[0002] Magnetic resonance imaging has become a common imaging method. It is an advanced medical imaging technology based on the principle of nuclear magnetic resonance, and has excellent diagnostic capabilities for solid organs, the heart, and large blood vessels. Compared with other auxiliary examination methods, nuclear magnetic resonance has the characteristics of multi-parameter, multi-sequence, and multi-directional imaging, high soft tissue resolution, no radiation damage, and its high sensitivity to lesion detection and functional imaging. It is widely used in the examination and diagnosis of diseases in various systems and parts of the human body, and has become a powerful tool for early screening of tumors, heart disease, and cerebrovascular diseases.
[0003] In the article "Expert Consensus on Hip MRI (Magnetic Resonance Imaging) Examination and Diagnosis" published in the Chinese Journal of Radiology, the MRI technical specifications are explained. The MRI examination position is usually supine, and the examinee's lower limbs are kept symmetrical, with the toes close together and internally rotated. In the specific specifications, the axis of the femoral neck of a normal person is at an angle of 12°-15° to the coronal plane of the body (femoral neck anteversion angle). During hip MRI, in order to make the axis of the femoral neck parallel to the detector, the patient's foot is internally rotated 15°-20° to force the femoral neck to be parallel to the detector.
[0004] In the prior art, patients maintain the inward rotation of the foot on their own. However, for patients with bone injuries or trauma, it is difficult for them to maintain the inward rotation of the foot for a long time. During the examination, the foot is prone to displacement and deformation, which affects the examination effect.
[0005] Therefore, the prior art still needs to be improved and developed. Utility Model Content
[0006] In order to solve the problem in the prior art that patients with bone injuries or trauma have difficulty in maintaining the foot in an internally rotated state for a long time during hip joint MRI examination, and the foot is easily displaced or deformed during the examination, thus affecting the examination effect, the utility model provides a foot internally rotated fixator and an examination auxiliary device for hip joint MRI examination.
[0007] The utility model is realized by the following technical solutions:
[0008] A hip joint nuclear magnetic resonance imaging examination foot internal rotation fixator, wherein the hip joint nuclear magnetic resonance imaging examination foot internal rotation fixator comprises:
[0009] First boot body;
[0010] a second boot body, wherein the second boot body is symmetrically arranged with respect to the first boot body;
[0011] A limiting rod, one end of which is rotatably connected to the root of the bottom surface of the first boot body, and the other end of which is rotatably connected to the root of the bottom surface of the second boot body;
[0012] The adjusting component comprises a gear rotatably arranged on the bottom surface of the first boot body and an adjusting plate rotatably arranged on the bottom surface of the second boot body, wherein the gear is meshed and rotatably connected with a latching tooth arranged on the adjusting plate.
[0013] The hip joint MRI examination foot internal rotation fixator, wherein the adjustment assembly further comprises an extension rod, one end of which is rotatably connected to the first boot body, and the gear is positioned and rotatably arranged on the other end of the extension rod;
[0014] The gear is connected to the extension rod in a damping rotation manner.
[0015] The hip joint MRI examination foot internal rotation fixator, wherein the adjustment plate is hollowed out to provide a mounting groove, a plurality of the latch teeth are continuously provided on one side of the mounting groove, and the gear is embedded in the mounting groove and is meshed and rotatably connected with the latch teeth.
[0016] The hip joint MRI examination foot internal rotation fixator, wherein a limit plate is provided on one side of the gear, and when the gear is embedded in the mounting groove, two sides of the adjustment plate are respectively slidably abutted against the extension rod and the limit plate;
[0017] A rotating handle is arranged on the gear at a position corresponding to the limiting plate, and the rotating handle is coaxially fixedly connected to the gear.
[0018] The hip joint MRI examination foot internal rotation fixator, wherein the second boot body has the same structure as the first boot body;
[0019] The first boot body comprises:
[0020] A bottom plate, wherein both ends of the bottom plate are bent along a predetermined angle;
[0021] Baffles, two baffles are symmetrically arranged on both sides of the bottom plate, and the baffles are vertically fixedly connected to the bottom plate.
[0022] The hip joint MRI examination foot internal rotation fixator, wherein the baffle is provided with a locking piece, and there are a plurality of the locking pieces, which are respectively arranged at positions on the baffle corresponding to the two ends of the bottom plate.
[0023] The hip joint MRI examination foot internal rotation fixator, wherein the locking piece is a flexible locking piece, one end of the locking piece is fixedly connected to the baffle on one side, and the other end of the locking piece is detachably connected to the baffle on the other side.
[0024] The hip joint MRI examination foot internal rotation fixator, wherein the base plate and the baffle are integrally formed, the base plate is a rigid base plate, and the baffle is a rigid baffle.
[0025] The hip joint MRI examination foot internal rotation fixator, wherein the inner sides of the first boot body and the second boot body are respectively provided with elastic pads, and the elastic pads are detachably fitted.
[0026] An examination auxiliary device, wherein the examination auxiliary device comprises any one of the above-mentioned hip joint magnetic resonance imaging examination foot internal rotation fixators.
[0027] The beneficial effects of the present invention are as follows: the present invention sets a limit rod at the base of the bottom surface of the first boot body and the second boot body to limit the distance between the first boot body and the second boot body, and sets an adjustment component to adjust the distance between the top of the bottom surface of the first boot body and the second boot body, which can form an effect of limiting the inward rotation of the foot for the wearer, adjust the inward rotation angle of the foot according to actual needs, assist the patient to maintain the inward rotation state of the foot, and ensure the inspection effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] Figure 1 It is a structural exploded diagram of the utility model of the hip joint nuclear magnetic resonance examination foot internal rotation fixator;
[0029] Figure 2 This is a schematic diagram of the first state of use of the foot internal rotation fixator for hip joint nuclear magnetic resonance examination of the utility model;
[0030] Figure 3 This is a schematic diagram of the second state of use of the foot internal rotation fixator for hip joint nuclear magnetic resonance examination of the utility model;
[0031] Figure 4 The utility model is a three-dimensional structural diagram of a gear in a foot internal rotation fixator for nuclear magnetic resonance examination of hip joint.
[0032] exist Figures 1 to 4 Middle: 100, first boot body; 110, bottom plate; 120, baffle; 130, locking member; 200, second boot body; 300, limit rod; 400, adjustment assembly; 410, gear; 411, limit plate; 412, rotary handle; 420, adjustment plate; 421, mounting groove; 422, latching tooth; 430, extension rod. DETAILED DESCRIPTION
[0033] In order to make the purpose, technical solution and effect of the utility model clearer and more specific, the utility model is further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.
[0034] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.
[0035] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.
[0036] In the prior art, patients maintain the inward rotation of the foot on their own. However, for patients with bone injuries or trauma, it is difficult for them to maintain the inward rotation of the foot for a long time. During the examination, the foot is prone to displacement and deformation, which affects the examination effect.
[0037] Based on the above problems in the prior art, the utility model provides a hip joint nuclear magnetic resonance examination foot internal rotation fixator, such as Figure 1 As shown, the hip joint MRI examination foot internal rotation fixator includes: a first boot body; a second boot body, the second boot body is symmetrically arranged with the first boot body; a limit rod, one end of the limit rod is rotatably connected to the root of the bottom surface of the first boot body, and the other end is rotatably connected to the root of the bottom surface of the second boot body; an adjustment component, the adjustment component includes a gear rotatably arranged on the bottom surface of the first boot body and an adjustment plate rotatably arranged on the bottom surface of the second boot body, the gear is meshed and rotatably connected with the teeth arranged on the adjustment plate.
[0038] The utility model sets a limit rod at the root of the bottom surface of the first boot body and the second boot body to limit the distance between the first boot body and the second boot body, and sets an adjustment component to adjust the distance between the top of the bottom surface of the first boot body and the second boot body. This can form an effect of limiting the inward rotation of the foot for the wearer, adjust the inward rotation angle of the foot according to actual needs, assist the patient to maintain the inward rotation state of the foot, and ensure the inspection effect.
[0039] In the above embodiment, if Figure 1 As shown, the main body of the foot internal rotation fixator for hip joint MRI examination of the utility model is composed of a first boot body, a second boot body, a limit rod and an adjustment component. In order to avoid affecting the effect of MRI, when actually manufacturing the various components of the foot internal rotation fixator for hip joint MRI examination, non-magnetic materials should be used to prevent the magnetic field of the components from affecting the MRI image. Among them, the first boot body and the second boot body are used to place the patient's feet, so the first boot body and the second boot body are symmetrically arranged, and the structures of the first boot body and the second boot body are the same, and the placement angle of the patient's feet can be fixed to a certain extent during actual use; in order to limit the relative angle between the first boot body and the second boot body, a limit rod and an adjustment component are also provided in this embodiment, wherein the limit rod is a rod body or a plate-like structure, and the two ends of the limit rod are respectively connected to the bottom of the first boot body and the second boot body for positioning and rotation. In actual setting, the two ends of the limit rod are preferably arranged at the root position of the bottom surface of the first boot body and the second boot body, that is, at a position corresponding to the position of the patient's heel, for limiting the relative distance between the heels of the patient's feet; the adjustment component has the function of adjusting the length, and the adjustment component is arranged at the head position of the bottom surface of the first boot body and the second boot body, that is, corresponding to the position of the patient's toes. Medical staff can move the toes of the patient's feet toward each other by adjusting the length of the component, thereby forming an auxiliary limiting effect of inward rotation of the foot.
[0040] Specifically, the adjustment component is mainly composed of a gear and an adjustment plate with a latch, wherein the gear is rotatably arranged on the bottom surface of the first boot body, the adjustment plate is arranged on the bottom surface of the second boot body, and the latch on the adjustment plate is meshed and rotatably connected with the gear, that is, when the gear is driven to rotate, the adjustment plate and the first boot body form relative movement under the drive of the latch. Since the length dimensions of the bottom surfaces of the first boot body and the second boot body are the same and the roots are both placed on the examination bed, the adjustment plate can adaptively rotate when the first boot body and the second boot body are close to each other, thereby forming an effect of relative rotation of the first boot body and the second boot body, thereby achieving a limiting effect on the inward rotation state of the feet in the first boot body and the second boot body.
[0041] In this embodiment, the connection between the gear and the first boot body can be set in the form of a damped rotation connection to lock the relative position of the gear and the adjustment plate. In addition, the lock can be formed by limiting the shape relationship between the gear and the adjustment plate, or an elastic locking mechanism can be set to lock when the gear rotates a predetermined angle.
[0042] In the above embodiment, the utility model of the hip joint MRI examination foot internal rotation fixator places the patient's feet by setting a first boot body and a second boot body, limits the distance between the roots of the first boot body and the second boot body by a limit rod, shortens the distance by an adjustment component so that the heads of the first boot body and the second boot body are brought closer, thereby forming a limit for the internal rotation of the patient's feet, providing assistance while the patient actively internally rotates, prolonging the duration of the patient's foot internal rotation, and reducing the probability of displacement, deformation, etc. of the patient's feet during the examination, thereby ensuring the examination effect.
[0043] In one possible implementation of the present invention, Figure 1 As shown, in order to improve the effect of adaptively adjusting to a symmetrical state after the relative rotation between the first boot body and the second boot body, in this embodiment, the above-mentioned adjustment component also includes an extension rod, one end of the extension rod is connected to the first boot body for positioning and rotation, and the connection position is symmetrical to the position of the upper limit rod of the second boot body for positioning and rotation connection, and the gear is positioned and rotated on the other end of the extension rod. In actual setting, the length of the extension rod is preferably set to make the position of the gear misaligned with the first boot body, so as to facilitate the medical staff to control the rotation of the gear. In actual use, the extension rod and the adjustment plate are formed on the same straight line under the pulling force of the patient's feet, or there is a certain relative angle during the adjustment process of the medical staff, which is convenient for the medical staff to operate and adjust, and can be driven by the pulling force to form a straight line limit when the adjustment is completed, so as to facilitate the patient's feet to form a symmetrical foot pronation state.
[0044] In this embodiment, the gear and the extension rod are arranged in a damping rotation connection manner. The damping shaft is a shaft with damping force, also known as a torque shaft. In this embodiment, the damping shaft can lock the position of the gear to a certain extent, thereby limiting the relative angle between the first boot body and the second boot body, so as to form an auxiliary restriction on the internal rotation state of the patient's feet. When the patient is really uncomfortable, the adjustment plate can also drive the gear to reverse by actively applying force to a certain extent, thereby releasing the limiting effect and maximizing the patient's examination experience.
[0045] In another embodiment of the present invention, Figure 1 As shown, in order to ensure the stability of the connection between the adjustment plate and the gear, in this embodiment, a mounting groove is hollowed out on the adjustment plate. The mounting groove is located inside the adjustment plate, and its length direction is arranged along the length direction of the adjustment plate. Its width dimension is adapted to the diameter dimension of the gear. Clamp teeth are continuously arranged on one side of the inner part of the mounting groove. Under the limiting action of the mounting groove, the gear embedded in the mounting groove forms a meshing state with the clamp teeth, and when the gear actively rotates, it forms a drive with the continuously arranged clamp teeth, thereby changing the relative position of the gear and the adjustment plate to achieve the effect of making the first boot body and the second boot body relatively close to or relatively far away from each other.
[0046] In this embodiment, since the width of the mounting groove is adapted to the diameter of the gear, after adjusting the gear to a predetermined position, the portion of the gear that meshes with the latch tooth will slide relative to each other along the inclined surface of the latch tooth under the action of the reverse pulling force of the first boot body and the second boot body, causing the other end of the gear to abut against the inner wall of the mounting groove. When two adjacent teeth on the gear abut against the inner wall of the mounting groove, the gear position is locked, thereby achieving the effect of automatically locking the relative position of the first boot body and the second boot body. When medical staff need to adjust the relative angle between the first boot body and the second boot body, they can push the gear toward the side of the latch tooth by actively applying force so that the gear and the latch tooth are fully engaged, and then adjustment can be performed.
[0047] In another embodiment of the present invention, Figure 1 and Figure 4 As shown, in order to further ensure the stability of the combination of the gear and the adjusting plate and avoid the occurrence of disengagement, a limit plate is also provided on one side of the gear in the present embodiment. The diameter of the limit plate is larger than the width of the mounting groove. When the gear is installed on the extension rod, the extension rod corresponds to the other side of the gear. Therefore, during the assembly process, when the gear is embedded in the mounting groove, the two sides of the adjusting plate are respectively clamped by the extension rod and the limit plate to form a limit, thereby ensuring that the running position of the gear is always in the mounting groove. At the same time, the extension rod and the limit plate form a structural state of abutment and sliding on both sides of the adjusting plate, which will not affect the process of gear driving rotation.
[0048] Furthermore, in order to facilitate medical personnel to control the rotation of the gears, Figure 4 As shown, a rotary handle is also provided on the outer side of the position of the limit plate on the above-mentioned gear. The rotary handle is coaxially arranged with the gear and fixedly connected. When the medical staff holds the rotary handle and applies force to rotate it, the gear rotates synchronously. By holding the rotary handle and applying force, a structural state in which the above-mentioned gear and the latch are fully engaged can be formed, and the gear can also be driven to rotate to change the position of the adjustment plate. In addition, due to the setting of the above-mentioned extension rod, the position of the rotary handle does not completely coincide with the bottom surface position of the first boot body, thereby providing operating space for the adjustment process.
[0049] In another embodiment of the present invention, Figure 1 As shown, in the above embodiment, the structure of the second boot body is the same as that of the first boot body. Therefore, in this embodiment, only the structure of the first boot body is described in detail, and those skilled in the art can set the structure of the second boot body with reference to the first boot body.
[0050] The first boot body includes a bottom plate and a baffle, wherein both ends of the bottom plate are bent along a predetermined angle, specifically in an "L" shape, one end of which is used to adapt to the sole of the patient, and the other end is used to adapt to the patient and the Achilles tendon, thereby forming a support for the patient's foot. In actual settings, technical personnel in this field can further set the bending angles of various parts on the bottom plate according to the curves of human body parts and ergonomics, and this application does not limit this.
[0051] In the first boot body, two baffles are provided, and the two baffles are symmetrically fixed on both sides of the bottom plate, and the two baffles are respectively arranged perpendicular to the bottom plate. In actual use, the two baffles on both sides of the bottom plate are respectively used to limit the two sides of the patient's foot, so as to fix the patient's foot inside the first boot body. After the patient maintains the inward rotation state for a certain period of time, the foot can be rested on the baffle, and the baffle can help maintain the patient's foot in the inward rotation state, thereby achieving the effect of prolonging the duration of the patient's foot in the inward rotation state.
[0052] Furthermore, if Figure 1 As shown, in order to further restrict the patient's foot inside the first boot body and the second boot body, a locking piece is also provided on the above-mentioned baffle plate. There are several locking pieces. In actual settings, the several locking pieces are respectively provided on the baffle plate at positions corresponding to the two ends of the bottom plate. The locking piece is used to provide a limiting structure in the hollow part of the boot body, so that the patient's foot can be fixed in the first boot body and the second boot body, avoiding the patient's foot from being separated from the first boot body and the second boot body during the examination, and preventing the possibility of a change in the inward rotation state of the foot due to such a situation.
[0053] More specifically, the locking member is preferably made of a flexible material, such as rubber, cloth, etc. The advantage of such a setting is that when the locking member covers the hollowed-out parts of the first boot body and the second boot body, it can adapt to the line changes of the patient's foot to form a fixing effect that fits the shape of the patient's foot. On the one hand, it can improve the comfort of the patient during wearing, and on the other hand, it can adapt to patients with different foot shapes, thereby improving versatility. In actual setting, one end of the locking member is fixedly connected to the baffle on one side, and the other end of the locking member is detachably connected to the baffle on the other side, and can be specifically set using Velcro.
[0054] On the other hand, in the above-mentioned embodiment, the above-mentioned base plate and baffle are preferably made by integral molding. At the same time, the base plate and the baffle should be made of rigid materials to meet the effect of assisting in limiting the patient's foot. During production, PVC (plastic), non-magnetic materials, etc. can be used for production to improve service life and structural stability.
[0055] In another possible implementation of the present invention, the above-mentioned hip joint MRI examination foot internal rotation fixator may also be provided with another accessory, namely an elastic pad. The elastic pad is similar to an insole and covers the inner side of the first boot body and the second boot body. The elastic pad may be made of rubber, foam or other materials with certain elastic properties. In actual setting, the elastic pad may be detachably fitted on the inner side of the first boot body and the second boot body to elastically connect the patient's foot with the first boot body and the second boot body, thereby improving the comfort of the wearing process. On the other hand, the elastic pad has a low production cost and can avoid direct contact between the patient's foot and the first boot body and the second boot body, thereby avoiding patients with skin diseases and infectious diseases from transmitting germs to the first boot body and the second boot body, thereby preventing cross infection of other patients.
[0056] Based on the above embodiments, the utility model provides a foot internal rotation fixator for hip joint magnetic resonance examination, which is used to assist the patient's foot to form a state of foot internal rotation, so that when performing hip joint examination through nuclear magnetic resonance, the femoral neck axis can be parallel to the detector to ensure the detection effect. In actual operation, the use process of the foot internal rotation fixator for hip joint nuclear magnetic resonance examination is as follows:
[0057] like Figure 1 , Figure 2 and Figure 3 As shown;
[0058] First, the patient lies flat on the examination bed, and the patient's feet are placed in the following positions: Figure 2 The first boot body and the second boot body are in the state, and are fixed by a locking member. Then, the medical staff holds the rotating handle with one hand and the adjusting plate with the other hand according to the degree of inward rotation of the foot, so that the rotating handle applies force to one side of the locking tooth of the adjusting plate, so that the gear is fully meshed with the locking tooth, and then rotates the gear to drive the adjusting plate to move, so that the heads of the first boot body and the second boot body move toward each other. In this process, the limiting rod limits the distance between the root positions of the first boot body and the second boot body, so that the state of inward rotation of the foot can be formed. After the first boot body and the second boot body are rotated to a predetermined relative angle, the medical staff leaves the rotating handle and the adjusting plate with both hands. Under the condition that the patient can maintain the state of inward rotation of the foot, the medical staff can complete a normal examination. When the patient cannot maintain the state of inward rotation of the foot, the foot can be abutted against the baffle plate, and the state of inward rotation of the foot can be maintained by limiting the baffle plate. In this state, the first boot body and the second boot body have a tendency to rotate in the opposite direction. Under the action of the pulling force, the gear slides along the inclined surface of the locking tooth, and forms an abutment engagement with the other side of the mounting groove, which can be locked to maintain the state of inward rotation of the patient's foot.
[0059] Based on the above embodiments, the utility model also provides an inspection auxiliary device, which includes the hip joint nuclear magnetic resonance examination foot internal rotation fixer described in any one of the above embodiments, and the hip joint nuclear magnetic resonance examination foot internal rotation fixer includes: a first boot body; a second boot body, the second boot body is symmetrically arranged with the first boot body; a limit rod, one end of the limit rod is rotatably connected to the root of the bottom surface of the first boot body, and the other end is rotatably connected to the root of the bottom surface of the second boot body; an adjustment component, the adjustment component includes a gear rotatably arranged on the bottom surface of the first boot body and an adjustment plate rotatably arranged on the bottom surface of the second boot body, and the gear is meshed and rotatably connected with the teeth arranged on the adjustment plate. The utility model sets a limit rod at the root of the bottom surface of the first boot body and the second boot body to limit the distance between the first boot body and the second boot body, and sets an adjustment component to adjust the distance between the bottom heads of the first boot body and the second boot body, so as to form a foot internal rotation limiting effect for the patient wearing the boot, adjust the foot internal rotation angle according to actual needs, assist the patient to maintain the foot internal rotation state, and ensure the inspection effect.
[0060] In summary, the utility model provides a foot internal rotation fixer for MRI examination of hip joint and an examination auxiliary device, wherein the foot internal rotation fixer for MRI examination of hip joint comprises: a first boot body; a second boot body, the second boot body is symmetrically arranged with the first boot body; a limit rod, one end of the limit rod is rotatably connected to the root of the bottom surface of the first boot body, and the other end is rotatably connected to the root of the bottom surface of the second boot body; an adjustment component, the adjustment component comprises a gear rotatably arranged on the bottom surface of the first boot body and an adjustment plate rotatably arranged on the bottom surface of the second boot body, the gear is meshed and rotatably connected with the latch teeth arranged on the adjustment plate. The utility model sets a limit rod at the root of the bottom surface of the first boot body and the second boot body to limit the distance between the first boot body and the second boot body, and sets an adjustment component to adjust the distance between the bottom heads of the first boot body and the second boot body at the same time, which can form a foot internal rotation limiting effect for the patient wearing the wearer, adjust the foot internal rotation angle according to actual needs, assist the patient to maintain the foot internal rotation state, and ensure the inspection effect.
[0061] It should be understood that the application of the present invention is not limited to the above examples. For ordinary technicians in this field, improvements or changes can be made according to the above description. All these improvements and changes should fall within the scope of protection of the claims attached to the present invention.
Claims
1. A hip joint MRI examination foot internal rotation fixator, characterized in that: The hip joint nuclear magnetic resonance imaging foot internal rotation fixator comprises: First boot body; a second boot body, wherein the second boot body is symmetrically arranged with respect to the first boot body; A limiting rod, one end of which is rotatably connected to the root of the bottom surface of the first boot body, and the other end of which is rotatably connected to the root of the bottom surface of the second boot body; The adjusting assembly comprises a gear rotatably arranged on the bottom surface of the first boot body and an adjusting plate rotatably arranged on the bottom surface of the second boot body, wherein the gear is rotatably connected with the latch teeth arranged on the adjusting plate.
2. The hip joint MRI examination foot internal rotation fixator according to claim 1, characterized in that: The adjustment assembly further comprises an extension rod, one end of which is rotatably connected to the first boot body, and the gear is positioned and rotatably arranged on the other end of the extension rod; The gear is connected to the extension rod in a damping rotation manner.
3. The hip joint MRI examination foot internal rotation fixator according to claim 2, characterized in that: The adjusting plate is hollowed out to form a mounting groove, a plurality of the latch teeth are continuously provided on one side of the mounting groove, and the gear is embedded in the mounting groove and is meshed and rotatably connected with the latch teeth.
4. The hip joint MRI examination foot internal rotation fixator according to claim 3, characterized in that: A limiting plate is provided on one side of the gear, and when the gear is embedded in the mounting groove, two sides of the adjustment plate are respectively slidably abutted against the extension rod and the limiting plate; A rotating handle is arranged on the gear at a position corresponding to the limiting plate, and the rotating handle is coaxially fixedly connected to the gear.
5. The hip joint MRI examination foot internal rotation fixator according to claim 1, characterized in that: The second boot body has the same structure as the first boot body; The first boot body comprises: A bottom plate, wherein both ends of the bottom plate are bent along a predetermined angle; Baffles, two baffles are symmetrically arranged on both sides of the bottom plate, and the baffles are vertically fixedly connected to the bottom plate.
6. The foot internal rotation fixator for MRI examination of hip joint according to claim 5, characterized in that: The baffle is provided with a locking piece, and a plurality of the locking pieces are provided. The plurality of the locking pieces are respectively arranged at positions on the baffle corresponding to the two ends of the bottom plate.
7. The hip joint MRI examination foot internal rotation fixator according to claim 6, characterized in that: The locking piece is a flexible locking piece, one end of which is fixedly connected to the baffle on one side, and the other end of which is detachably connected to the baffle on the other side.
8. The foot internal rotation fixator for hip joint nuclear magnetic resonance examination according to claim 5, characterized in that: The bottom plate and the baffle are integrally formed, the bottom plate is a rigid bottom plate, and the baffle is a rigid baffle.
9. The foot internal rotation fixator for MRI examination of hip joint according to claim 1, characterized in that: Elastic pads are respectively arranged on the inner sides of the first boot body and the second boot body, and the elastic pads are detachably fitted.
10. An inspection auxiliary device, characterized in that: The examination auxiliary device includes the hip joint magnetic resonance imaging examination foot internal rotation fixator as described in any one of claims 1 to 9.