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CN-224220153-U - Foot load CT system

CN224220153UCN 224220153 UCN224220153 UCN 224220153UCN-224220153-U

Abstract

The utility model belongs to the technical field of CT, and particularly discloses a foot load CT system, which comprises an imaging device and a load device, wherein the imaging device is used for imaging feet of a patient on the load device, the load device comprises a rotating mechanism, a sitting posture supporting mechanism, a foot inclined supporting mechanism and a load mechanism, the sitting posture supporting mechanism, the foot inclined supporting mechanism and the load mechanism are positioned on the rotating mechanism, the rotating mechanism is used for driving the patient to rotate, the sitting posture supporting mechanism is used for supporting the patient, the foot inclined supporting mechanism is used for carrying out inclined supporting on the feet of the patient, the toes of the patient are positioned at a low position, the load mechanism comprises a load structure and a load display structure, the load structure is used for applying load to the feet of the patient, the load display structure is used for displaying the load condition of the feet, and the patient is pre-weighed. The foot of the patient is adjusted from a flat state in a standing state to an inclined state, so that the imaging equipment can image the foot conveniently.

Inventors

  • LIU CHUAN
  • Yin Zhenzhu
  • ZUO TIANJIAN
  • WANG XIAOMIN
  • ZHU WEI
  • MA YINHUA
  • LIU YIJING
  • TAN YI
  • GUO GUITONG
  • WANG SIRUI
  • WANG YUCHENG
  • LI BINGYANG

Assignees

  • 重庆医科大学

Dates

Publication Date
20260512
Application Date
20250113

Claims (8)

  1. 1. The foot load CT system is characterized by comprising an imaging device and a load device, wherein the imaging device is used for imaging feet of a patient on the load device, the load device comprises a rotating mechanism, a sitting posture supporting mechanism, a foot inclined supporting mechanism and a load-bearing mechanism, the rotating mechanism is used for driving the patient to rotate, the sitting posture supporting mechanism is used for supporting the patient, the foot inclined supporting mechanism is used for carrying out inclined supporting on the feet of the patient, the toes of the patient are positioned at a low position, the inclined lowest point of the foot inclined supporting mechanism is positioned at the rotation center of the rotating mechanism, the load-bearing mechanism comprises a load-bearing structure and a load-bearing display structure, the load-bearing structure is used for applying loads to the feet of the patient, the load-bearing display structure is used for displaying the load conditions of the feet, and the patient is pre-weighed.
  2. 2. The CT system with foot load according to claim 1, wherein the sitting posture support mechanism comprises a chair (4), the chair (4) is fixed on the rotating mechanism, and the chair (4) is made of nonmetal materials.
  3. 3. The CT system with foot load according to claim 2, characterized in that a safety harness is provided on the chair (4).
  4. 4. The CT system for foot weight according to claim 1, wherein the foot tilting support mechanism comprises a support plate (2) and an adjusting member (3), one side of the support plate (2) is hinged on the rotation center of the rotation mechanism, and the adjusting member (3) is used for driving the other side of the support plate (2) to move vertically so as to adjust the tilting angle of the support plate (2).
  5. 5. The foot-loaded CT system as set forth in claim 1, wherein said load-bearing structure comprises an elastic band (5), said elastic band (5) being adapted to be strapped to said patient's leg, the load being adjusted by adjusting the tightness of said elastic band (5) and/or the number of said elastic bands (5).
  6. 6. The foot-loaded CT system as recited in claim 1, wherein said load bearing structure comprises a load bearing plate and a weight applying assembly for applying weight to a compression plate (7), said compression plate (7) for compressing the leg.
  7. 7. The foot-loaded CT system as set forth in claim 6, wherein said compression plate (7) is configured in an arc shape.
  8. 8. The CT system as recited in claim 1, wherein the rotation mechanism comprises a rotation platform (1) and a rotation member for rotating the rotation platform (1).

Description

Foot load CT system Technical Field The utility model belongs to the technical field of CT, and particularly relates to a foot load CT system. Background CT examination is a very common examination mode in the orthopaedics field, and bones and soft tissues have good contrast on CT images. In general, a traditional CT examination is performed on the foot and ankle, however, doctors often want to know the bone morphology of patients under the load state, and many small changes of the foot and ankle, including injuries of lower limb force lines and facet joint surfaces, are not easy to observe under the non-load condition, and only the load shooting can truly reflect the change of gravity on biomechanics of the foot and ankle. The occurrence of vertical cone beam computer tomography (vertical CBCT) makes up the defect of the traditional CT to a certain extent, and the device is a device which integrates an X-ray tube for emitting cone beams and a digital flat panel detector, a patient stands on an examination table in front of the detector, and a motor drives the body of the patient to rotate for one circle to generate a three-dimensional image. However, after the applicant scans a plurality of patients, the toe bone of the imaging mode is not clearly displayed, and the imaging principle of the device mainly has two reasons that 1. The imaging principle of the device determines that the closer to the center of a circle of an inspection table is, the clearer the image is, the length of the sole of an adult is about 20 cm to 30cm when the adult stands normally, and the toe position away from the center of the circle is not clearly displayed. 2. The thin toe bones are not clearly shown due to the harness hardening artifacts. Disclosure of utility model The utility model aims to provide a foot load CT system, which aims to solve the problem that the toe (particularly the toe) is not clearly displayed because the current load CT examination is carried out when the feet of a patient naturally stand. In order to achieve the aim, the foot weight CT system comprises an imaging device and a weight-bearing device, wherein the imaging device is used for imaging feet of a patient on the weight-bearing device, the weight-bearing device comprises a rotating mechanism, a sitting posture supporting mechanism, a foot weight-bearing mechanism and a weight-bearing mechanism, the sitting posture supporting mechanism is arranged on the rotating mechanism and used for driving the patient to rotate, the sitting posture supporting mechanism is used for supporting the patient, the foot weight-bearing mechanism is used for supporting the feet of the patient in a tilting mode, the toes of the patient are positioned at a low position, the lowest tilting point of the foot weight-bearing mechanism is positioned at the rotation center of the rotating mechanism, the weight-bearing mechanism comprises a weight-bearing structure and a weight-bearing display structure, the weight-bearing structure is used for applying weight to the feet of the patient and used for displaying weight conditions of the feet, and the patient is pre-weighed. Further, the sitting posture supporting mechanism comprises a chair, the chair is fixed on the rotating mechanism, and the chair is made of nonmetal materials. Further, a safety belt is arranged on the chair. Further, the foot inclined support mechanism comprises a support plate and an adjusting piece, one side of the support plate is hinged to the rotation center of the rotation mechanism, and the adjusting piece is used for driving the other side of the support plate to vertically move so as to adjust the inclination angle of the support plate. Further, the weight bearing structure comprises an elastic band for being tied to the leg of the patient, the weight bearing being adjusted by adjusting the tightness of the elastic band and/or the number of elastic bands. Further, the load bearing structure includes a load bearing plate and a weight applying assembly for applying weight to a pressing plate for pressing the leg. Further, the pressing plate is provided in an arc shape. Further, the rotating unit comprises a rotating platform and a rotating piece, and the rotating piece is used for driving the rotating platform to rotate. The technical scheme has the working principle that a patient sits on the chair, and the patient can be limited by using the safety bandage for safety. The inclination angle of the supporting plate is adjusted according to the bearing capacity of the patient, and the patient places the sole on the inclined plane of the supporting plate. Then the leg is subjected to negative pressure according to the weight of the patient obtained in advance, and the tightness degree of the elastic band, the number of the elastic bands or the applied weight of the weight applying component can be adjusted, so that the result displayed by the weight display structure is almost the same as the weight of the