Method and device for correcting the subsidence of hospital bed

A measuring device and technology of a hospital bed, which is applied in the field of correcting the subsidence of a hospital bed, can solve problems such as software algorithm error, marker error, and influence on the accuracy of the subsidence, and achieve the effect of high correction accuracy and improved accuracy
CN106924886BActive Publication Date: 2020-12-04SHANGHAI UNITED IMAGING HEALTHCARE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHANGHAI UNITED IMAGING HEALTHCARE
Publication Date
2020-12-04

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Abstract

The present invention belongs to the radiotherapy field and discloses a method or apparatus for correcting the subsidence amount of a sickbed. The method comprises the following steps that: the image of a patient is obtained; the distribution function of the subsidence amount of the sickbed is searched according to the weight of the patient and the movement distance of the sickbed, a subsidence amount corresponding to the image is obtained, and the distribution function of the subsidence amount of the sickbed is the distribution of the relative subsidence amount of the sickbed with respect to the weight of the load and the movement distance of the sickbed; and the subsidence amount is utilized to correct the image or the arrangement error of the patient. With the method or apparatus for correcting the subsidence amount of the sickbed of the invention adopted, the relative subsidence amount of a radiotherapy device and an imaging device can be corrected, the relative subsidence amounts of the sickbed at the imaging device side which are obtained under a condition that the sickbed moves different distances can be corrected, and correction accuracy is higher.
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Description

technical field

[0001] The invention relates to the field of radiotherapy, in particular to a method and a device for correcting the subsidence of a hospital bed. Background technique

[0002] Radiation therapy is one of the important means of tumor treatment, and radiation therapy planning refers to the optimal design of the radiation therapy plan. In order to ensure that patients can obtain the correct treatment plan and high-quality radiotherapy, a radiotherapy plan must be designed and formulated before radiotherapy.

[0003] Before making a radiotherapy plan, use medical diagnostic equipment to collect images of the patient to determine the location and shape of the tumor, and calculate the radiation dose; before implementing the radiotherapy plan, in order to accurately position the patient, it is usually necessary to acquire the patient’s image again to guide The treatment field is precisely matched to the set-up position. The integration of medical accelerators and...

Claims

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