CN222640502U - A lower limb fixation device for CT imaging - Google Patents

Abstract

The utility model discloses a lower limb fixing device in CT imaging, which is designed in a manner of fixing lower limbs or wearing a lower limb protector by examined in a manner of matching a traditional restraint strap with a flat plate body, wherein a thigh supporting plate and a lower limb supporting plate respectively support thighs and lower limbs, the thigh supporting plate and the lower limb supporting plate rotate relatively with the same rotating shaft as the center, the bottom end of the thigh supporting plate and the lower limb supporting plate are rotatably connected with a bottom plate and can slide, flexible adjustment of buckling angles of thighs and lower limbs is realized, the adjusted relative angles can be visually read through arc-shaped tracks on the side surfaces, fastening structures are slidably arranged on the thigh supporting plate and the lower limb supporting plate, a plurality of belt holes are formed on the thigh supporting plate and the lower limb supporting plate, and the thigh and the lower limb supporting plate can be pressed by the fastening mechanisms according to actual needs, or the thigh and lower limb supporting plate are bound and the lower limb by the belt structures such as an external restraint strap and a bandage from the viewpoint of being convenient for drawing materials.

Description

Lower limb fixing device during CT imaging

Technical Field

The utility model belongs to the technical field of medical appliances, and particularly relates to a lower limb fixing device during CT imaging.

Background

The CT examination is a clinically advanced medical image examination technology at present, and the principle is that after the body structure of a patient is scanned by using X-rays, a computer can convert scanning information into image information to be output, and a radiologist sends a diagnosis report. CT examination can be applied to any part of the whole body, including diagnosis and differential diagnosis of pathological changes of a plurality of organs such as head, neck, chest, abdomen, spine, limbs and the like, and has important significance. In clinical diagnosis of diseases, CT scanning is a conventional detection method, particularly has good sensitivity and specificity to bone and soft tissue lesions, has good range display of the lesions, and is beneficial to preoperative plan planning and contrast observation before and after treatment.

When the joints of the lower limbs are inspected, certain subjects with lower compliance or special inspection positions are inspected, so that the lower limbs of the subjects are easy to move, the joints and bones on two sides are not easy to keep on the same scanning line, the image quality is high, the two sides are difficult to compare, and the disease diagnosis is difficult. Meanwhile, the joints are not on the same scanning line, so that the scanning times are increased, and the unnecessary X-ray quantity and machine loss are increased for patients, thereby bringing great inconvenience to clinical work. To solve the above problems, the conventional operation is to use a restraint strap and a flat plate body to bind the lower limb of the subject to fix the lower limb, or to wear a lower limb protector for the subject to fix the lower limb of the patient during CT examination;

However, the simple operation generally has the following defects that 1, aiming at trauma patients, the lower limbs of the patients are not easy to keep buckling, or are not easy to straighten and flatten after buckling, the matching flexibility of the restraint strap and the flat plate is relatively high, the restraint strap cannot be matched with the testees with different buckling degrees of the lower limbs, 2, the positions and the number of the restraint strap are single and fixed, the restraint strap cannot be effectively matched with the testees with different lower limb lengths, 3, the restraint strap is only used, the restraint force is insufficient, the lower limbs of the testees with low compliance cannot be stably restrained, and 4, the buckling degrees of the lower limbs of the patients cannot be observed, so that the bilateral lower limbs of the patients cannot be accurately kept on the same scanning line.

Accordingly, there is a need to disclose a lower limb fixation device in CT imaging to ameliorate the above-mentioned shortcomings.

Disclosure of utility model

In order to solve the technical problems, the utility model provides a lower limb fixing device in CT imaging, which is designed in a bearing fixing and adjusting mode of lower limbs, wherein thigh supporting plates and shank supporting plates are used for respectively bearing thighs and shanks of the lower limbs, relative angles of the thigh supporting plates and the shank supporting plates can be adjusted, and the adjusted relative angles can be visually read through arc-shaped tracks on the side surfaces;

In order to achieve the technical purpose, the utility model is realized by the following technical scheme:

a lower limb fixing device used in CT imaging comprises a bottom plate, a thigh supporting plate, a shank supporting plate, a rotating shaft, a fastening mechanism and a foot supporting plate;

The upper two sides of the bottom plate are respectively provided with a thigh supporting plate and a shank supporting plate, the thigh supporting plate and the shank supporting plate are rotationally connected by taking the axis of the same rotating shaft as the center, the bottom ends of the thigh supporting plate and the shank supporting plate are respectively rotationally connected with the bottom plate through two first sliding blocks and two second sliding blocks, the first sliding block slides on the bottom plate to enable the relative angle between the thigh supporting plate and the shank supporting plate to change, and the front-back width of the thigh supporting plate is larger than the front-back width of the shank supporting plate;

The thigh support plate and the shank support plate are respectively provided with two fastening mechanisms in a sliding manner, wherein each fastening mechanism comprises a bracket, a pressing plate, a sliding plate and a screw rod;

The thigh support plate and the shank support plate are respectively provided with a first protruding indication column and a second protruding indication column at the same side, the first indication column and the second indication column are sleeved into an arc-shaped track together, the arc-shaped track is provided with angle scales, and the angle scales indicate the relative angles of the thigh support plate and the shank support plate;

Furthermore, two pairs of sliding rails are symmetrically arranged on two sides of the bottom plate, namely a first sliding rail and a second sliding rail for sliding the first sliding block and the second sliding block, wherein the limiting modes of the first sliding block and the second sliding block after sliding include but are not limited to bolt limiting and fastening knob limiting;

Furthermore, a plurality of mutually parallel belt holes are formed on both sides of the thigh support plate and the shank support plate, wherein the belt holes are strip-shaped holes;

the support is of an n-shaped structure, upright rods in the vertical direction are arranged on two sides of the support, and connecting rods integrally connected with the two upright rods are arranged at the top of the support;

The two vertical rods slide on the thigh support plate and the shank support plate through the matching of the three sliding blocks and the three sliding rails, and limit modes after the two vertical rods slide include, but are not limited to, bolt limit and fastening knob limit;

Furthermore, two sides of the bottom end of the foot support plate are provided with two sliding blocks IV, the foot support plate slides on the lower leg support plate through the matching of the sliding blocks IV and the sliding rails III, and the limiting mode after sliding comprises but is not limited to bolt limiting and fastening knob limiting;

Further, the arc-shaped track is fixedly connected with the rotating shaft through a connecting column at the tail end of the rotating shaft;

the beneficial effects of the utility model are as follows:

compared with the traditional mode that the restraint strap is matched with the flat plate body to fix the lower limb or the mode that the lower limb protector is worn by the patient to be examined, the lower limb fixing device for CT imaging provided by the utility model designs the supporting fixing and adjusting mode of the lower limb;

1. The thigh supporting plate and the shank supporting plate respectively support the thigh and the shank of the lower limb, the thigh supporting plate and the shank supporting plate rotate relatively by taking the same rotating shaft as the center, the bottom end of the thigh supporting plate and the bottom plate are rotationally connected and can slide, flexible adjustment of the buckling angles of the thigh and the shank is realized, and the adjusted relative angle can be visually read by the arc-shaped track on the side face;

2. Both slidable mounting has fastening structure on thigh fagging and the shank fagging, has offered a plurality of foraminiferous again, can select to compress tightly thigh and the shank of low limbs through fastening mechanism according to actual need, perhaps from the angle of being convenient for draw materials, selects external restraint band, band body structures such as bandage to realize the ligature fixed to thigh and shank of low limbs.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of the overall structure of the present utility model;

FIG. 2 is a schematic view of the overall structure of another view of the present utility model;

FIG. 3 is a schematic diagram of the front view of the present utility model;

FIG. 4 is an enlarged schematic view of the structure of FIG. 1A in accordance with the present utility model;

FIG. 5 is an enlarged schematic view of the structure of FIG. 2B in accordance with the present utility model;

FIG. 6 is a broken view of a side view of the base plate of the present utility model;

FIG. 7 is an exploded view of the fastening mechanism, calf support plate and foot support plate of the present utility model;

In the drawings, the list of components represented by the various numbers is as follows:

1-bottom plate, 101-slide rail one, 102-slide rail two, 103-bolt one, 2-thigh support plate, 201-slide block one, 202-indication column one, 3-calf support plate, 301-slide block two, 303-indication column two, 4-rotating shaft, 401-connecting column, 5-fastening mechanism, 501-bracket, 5011-vertical rod, 5012-connecting rod, 5013-slide block three, 502-pressing plate, 503-slide plate, 504-screw rod, 505-slide rail three, 506-bolt two, 6-foot support plate, 601-slide block four, 602-bolt three, 7-arc track, 701-angle scale, 8-with hole.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

Referring to fig. 1-7, in the present embodiment, a lower limb fixing device for CT imaging includes a base plate 1, a thigh support plate 2, a shank support plate 3, a rotating shaft 4, a fastening mechanism 5, and a foot support plate 6;

In this embodiment, a thigh support plate 2 and a shank support plate 3 are respectively mounted on two sides of the bottom plate 1, the thigh support plate 2 and the shank support plate 3 are rotatably connected with each other by taking the axis of the same rotating shaft 4 as the center, the bottom ends of the thigh support plate 2 and the shank support plate 3 are rotatably connected with the bottom plate 1 through two first sliding blocks 201 and two second sliding blocks 301 respectively, the first sliding block 201 slides on the bottom plate 1 to enable the relative angles of the thigh support plate 2 and the shank support plate 3 to change, the front-back width of the thigh support plate 2 is larger than the front-back width of the shank support plate 3, the thigh support plate 2, the shank support plate 3 and the bottom plate 1 form a triangular stable structure, and after the bottom ends of the thigh support plate 2 and the shank support plate 3 slide, the relative angles of the thigh support plate 2 and the shank support plate 3 change, namely, the thigh support plate 2 and the shank support plate 3 can adapt to different buckling degrees of lower limbs;

In this embodiment, two fastening mechanisms 5 are slidably mounted on the thigh support plate 2 and the shank support plate 3, and each fastening mechanism 5 includes a bracket 501, a pressing plate 502, a sliding plate 503, and a screw rod 504, where the pressing plate 502 is integrally connected with the sliding plate 503, the sliding plate 503 is driven by the screw rod 504 mounted on the bracket 501 to drive the pressing plate 502 to slide up and down relative to the bracket 501, a lower limb penetrates into a space between the pressing plate 502 and the bottom plate 1, a lower limb lower surface is supported by the thigh support plate 2 and the shank support plate 3, and an upper surface is pressed and fixed by the fastening mechanism 5, so that a stable support and fixation can be formed on the lower limb from the upper surface and the lower surface of the lower limb;

In the embodiment, the thigh support plate 2 and the shank support plate 3 are respectively provided with a first protruding indication column 202 and a second protruding indication column 303 on the same side, the first indication column 202 and the second indication column 303 are sleeved in the arc-shaped track 7 together, the arc-shaped track 7 is provided with an angle scale 701, the angle scale 701 indicates the relative angle of the thigh support plate 2 and the shank support plate 3, the tail end of the shank support plate 3 is slidably provided with a foot support plate 6, the visualization of the relative angle of the thigh support plate 2 and the shank support plate 3 provides data on the same scan line for CT imaging of lower limbs on two sides, and the contrast of imaging results of the lower limbs on two sides is facilitated;

In this embodiment, two pairs of sliding rails are symmetrically arranged on two sides of the bottom plate 1, and the sliding rails are respectively a first sliding rail 101 and a second sliding rail 102 for sliding of the first sliding block 201 and the second sliding block 301, wherein the limiting modes of the first sliding block 201 and the second sliding block 301 after sliding include, but are not limited to, bolt limiting and fastening knob limiting;

In this embodiment, the two sides of the thigh support plate 2 and the shank support plate 3 are provided with a plurality of parallel belt holes 8, the belt holes 8 are elongated holes, and in the actual use process, the fastening mechanism 5 is not suitable for compression fastening according to the compliance performance, the injury degree and the like to be tested, and at the moment, an external restraint belt or bandage and the like are adopted to pass through the belt holes 8 to bind and fix the lower limbs;

in the embodiment, the bracket 501 has an n-shaped structure, upright posts 5011 are arranged on two sides of the bracket, connecting rods 5012 integrally connected with the two upright posts 5011 are arranged on the top of the bracket, two ends of the sliding plate 503 are respectively sleeved on the two upright posts 5011 and slide on the upright posts 5011, the pressing plate 502 has a wide plate structure with an arc track which is bent, and the outward convex direction of the arc track is upward;

In the embodiment, two sliding blocks three 5013 are respectively arranged at the bottom ends of two upright posts 5011, sliding rails three 505 are respectively arranged at two sides of the thigh support plate 2 and the shank support plate 3, the two upright posts 5011 slide on the thigh support plate 2 and the shank support plate 3 through the matching of the sliding blocks three 5013 and the sliding rails three 505, and the limiting modes of the two upright posts 5011 after sliding comprise, but are not limited to, bolt limiting and fastening knob limiting;

In the embodiment, two sliding blocks four 601 are arranged on two sides of the bottom end of the foot supporting plate 6, the foot supporting plate 6 slides on the shank supporting plate 3 through the matching of the sliding blocks four 601 and the sliding rail three 505, and the limiting mode after sliding comprises but is not limited to bolt limiting and fastening knob limiting, wherein the foot supporting plate 6 forms an angle with the shank supporting plate 3;

In this embodiment, the arc-shaped track 7 is fixedly connected with the rotating shaft 4 through a connecting column 401 at the end of the rotating shaft 4;

In this embodiment, a specific usage procedure of the lower limb fixing device during CT imaging is as follows:

After the utility model is assembled according to the drawings and the description, the utility model is integrally placed on CT examination equipment, the relative angle of the thigh support plate 2 and the shank support plate 3 is adjusted to a proper size according to the condition of the lower limb of a tested person and is fixed, the thighs and the shanks of the lower limb of the tested person are respectively placed on the thigh support plate 2 and the shank support plate 3, and the two fastening mechanisms 5 are respectively moved to proper positions according to the condition of the lower limb of the tested person and are pressed and fixed;

Example 2

Referring to fig. 1 to 7, in the embodiment 1, another lower limb fixing method is provided, and when the subject is severely injured and cannot bear the compression fixing of the fastening mechanisms 5, the two fastening mechanisms 5 are slidably removed; the soft band body is externally connected with a restraint band bandage, and two ends of the band body are penetrated into the band holes 8 to bind and fix the lower limbs of the tested person;

In order to further increase the comfort and applicability of the utility model, a plurality of ventilation holes can be arranged on the thigh support plate 2 and the shank support plate 3 to increase ventilation performance, soft cushions can also be sleeved on the thigh support plate 2, the shank support plate 3 and the foot support plate 6 to increase comfort performance, and the materials of all the components of the utility model are nonmetallic materials when the utility model is used under CT imaging conditions.

The preferred embodiments of the utility model disclosed above are intended only to assist in the explanation of the utility model. The preferred embodiments are not exhaustive or to limit the utility model to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best understand and utilize the utility model. The utility model is limited only by the claims and the full scope and equivalents thereof.

Claims (7)

1. The lower limb fixing device for CT imaging is characterized by comprising a bottom plate, a thigh supporting plate, a shank supporting plate, a rotating shaft, a fastening mechanism and a foot supporting plate;

The upper two sides of the bottom plate are respectively provided with a thigh supporting plate and a shank supporting plate, the thigh supporting plate and the shank supporting plate are rotationally connected by taking the axis of the same rotating shaft as the center, the bottom ends of the thigh supporting plate and the shank supporting plate are respectively rotationally connected with the bottom plate through two first sliding blocks and two second sliding blocks, the first sliding blocks slide on the bottom plate to enable the relative angles of the thigh supporting plate and the shank supporting plate to change, and the front-back width of the thigh supporting plate is larger than the front-back width of the shank supporting plate;

The thigh support plate and the shank support plate are respectively provided with two fastening mechanisms in a sliding manner, wherein each fastening mechanism comprises a bracket, a pressing plate, a sliding plate and a screw rod;

The thigh support plate and the shank support plate are respectively provided with a first protruding indication column and a second protruding indication column at the same side, the first indication column and the second indication column are sleeved into an arc-shaped track together, angle scales are arranged on the arc-shaped track and indicate the relative angles of the thigh support plate and the shank support plate, and the tail end of the shank support plate is provided with a foot support plate in a sliding mode.

2. The lower limb fixing device for CT imaging according to claim 1, wherein two pairs of sliding rails are symmetrically arranged on two sides of the bottom plate, namely a first sliding rail and a second sliding rail for sliding the first sliding block and the second sliding block, and the limiting modes of the first sliding block and the second sliding block after sliding include but are not limited to bolt limiting and fastening knob limiting.

3. The lower limb fixing device for CT imaging according to claim 1, wherein a plurality of mutually parallel belt holes are formed in two sides of the thigh support plate and the shank support plate, and the belt holes are strip-shaped holes.

4. The lower limb fixing device for CT imaging according to claim 1, wherein the support is of an n-shaped structure, upright posts are arranged on two sides of the support, connecting rods integrally connected with the two upright posts are arranged on the top of the support, two ends of the sliding plate are respectively sleeved on the two upright posts and slide on the upright posts, the pressing plate is of a wide plate structure with an arc track bent, and the convex direction of the arc track is upward.

5. The lower limb fixing device for CT imaging according to claim 4, wherein two sliding blocks III are respectively arranged at the bottom ends of two upright rods, sliding rails III are respectively arranged at two sides of the thigh support plate and the shank support plate, the two upright rods slide on the thigh support plate and the shank support plate through the matching of the sliding blocks III and the sliding rails III, and the limiting modes after the sliding of the two upright rods include but are not limited to bolt limiting and fastening knob limiting.

6. The lower limb fixing device for CT imaging according to claim 5, wherein two sides of the bottom end of the foot support plate are provided with two sliding blocks IV, the foot support plate slides on the lower leg support plate through the matching of the sliding blocks IV and the sliding rails III, the limiting mode after sliding comprises but is not limited to bolt limiting and fastening knob limiting, and the foot support plate is in an angle with the lower leg support plate.

7. The lower limb fixation device for CT imaging according to claim 1, wherein the arcuate track is fixedly connected to the shaft at the end of the shaft by a connecting post.