56results about How to "Improve the effect of radiotherapy" patented technology

The invention discloses a fixing device for head tumor radiotherapy. The fixing device comprises a base, an arc-shaped plate and a first arc-shaped frame; the upper side of the base is provided with an arc-shaped groove; upper sides of two ends of the arc-shaped groove are each provided with an annular rotating support; the arc-shaped inner side face of the arc-shaped plate is fixedly provided with an arc-shaped bearing plate; the arc-shaped inner face of the bearing plate is fixedly provided with an arc-shaped fixing headrest; arc-shaped connecting rods are connected between the first arc-shaped frame and the arc-shaped plate; the arc-shaped inner side of the first arc-shaped frame is provided with a second arc-shaped frame; a plurality of springs are connected between the second arc-shaped frame and the first arc-shaped frame; and the arc-shaped inner side of the second arc-shaped frame is provided with an arc-shaped frame movable headrest. The fixing device is ingenious in design and simple in structure, realizes all-round fixation of the head of a patient, and can support rotation of the head of the patient when in use, thereby realizing adjustment of the posture of the head ofpatient; and the fixing device adapts to precise radiotherapy of tumors in different positions in the head, relieves the pain of the patient and the labor intensity of medical workers, and improves the comfort of the patient and the working efficiency of the medical workers.

The invention belongs to medical domain; it has disclosed a compound medicine that contains cantharidin orits derivates and at least one kind of medicine that can improve the immunity, the preparing method and application is also mentioned in the invention. The medicine that can improve immunity is chosen from one kind or various kinds of lentinan, ganoderma and hoelen. The medicine can be used to treat liver cancer, esophageal cancer, carcinoma of gastric cardia, lung cancer, malignant lymphoma and low blood corpuscle; it can also be used to treat hepatitis, cirrhosis or HB virus; it can be used as preoperative drug for cancer operation or be used in combination chemotherapy with the function of coordinated synergistic action. The product in the invention has good stability and the effects have been greatly improved than the single application of Norcantharidin, lentinan, ganoderma and hoelen. The medicine can be made into any medically acceptable dosage with any medically acceptable accessories so it has wide prospects.

The invention relates to a source applicator for anal canal tumor radiotherapy, the source applicator comprises a cylindrical source applicator body of which the diameter is 3cm, wherein the front end of the source applicator body is a spherical arc, the front segment of the source applicator body is a right cylinder segment of which the length is 8.5cm, the right cylinder segment comprises the spherical arc at the front end, the rear segment of the source applicator body is bent in a manner of a 150-degree arc, the arc length of an introvert of an arc-shaped bent segment is 5cm, the source applicator body is internally and axially provided with three source applying tubes which are eccentrically arranged in a semicircle of the introvert side of the cross section of the source applicator body and distributed in a manner of a circular curve, and the distance between the center of each source applying tube and the outer wall of the introvert side of the source applicator body is 5.5cm; an arc between the circle center of the first source applying tube and the circle center of the second source applying tube is equal to an arc between the circle center of the second source applying tube and the circle center of the third source applying tube, and a central angle corresponding to the arc is 60 degrees. The source applicator has a good radiotherapy effect on nidus that part carcinoma of the anal canal spreads outside the anus edge, reduces the possibility of tumor recurrence and facilitates radical cure of the tumor.

The invention belongs to the technical field of medical supplies, and relates to an auxiliary device, in particular to an auxiliary device for the treatment of esophageal cancer. The body fixing mechanisms all include a middle supporting device matched with the bed board, and a pair of folding devices are connected to the middle supporting device; the middle supporting device is connected with a body fixing device, and the body fixing device includes a buttock fixing structure connected with the middle supporting device and The arm fixing structure is slidingly connected with the middle support device; a pair of folding devices are respectively connected with a head fixing mechanism and a leg fixing mechanism, and the folding device can realize the connection between the head fixing mechanism, the leg fixing mechanism and the body fixing mechanism Folding; the present invention effectively solves the problem of cumbersome operation and low efficiency when positioning and fixing patients in existing radiotherapy devices.

The invention discloses an ultra-small gold nanoparticle with the characteristics of tumor cell mitochondria targeting and rapid kidney clearance, with a diameter of 2.5-5.5nm, which is prepared by modifying the surface of the gold nanoparticle with a cell-penetrating peptide, and the cell-penetrating peptide is composed of FrFKFrFK sequence, VGPLGV sequence and EKEKEKEKEKEK sequence. The ultra-small gold nanoparticle of the present invention has a very small size, is beneficial to metabolism through the kidney, and has good biological safety. The multifunctional responsive surface is stable under normal physiological conditions. After responding to the tumor microenvironment, the internal mitochondrial targeting molecules are exposed, which are efficiently endocytosed by liver tumor cells and targeted to mitochondria, thereby improving the enrichment and concentration of gold nanoparticles in tumors. Dwelling time: Gold nanoparticles contact with mitochondria, under radiation irradiation, can more effectively destroy the structure and function of mitochondria, and play a better effect of radiosensitization.

The invention discloses a radiotherapy device for the neck, which includes a radiotherapy device, a drum, a box body, a motor and a transmission mechanism. The motor is fixedly arranged in the box body, and the driving shaft of the motor is provided with a first gear, and the first gear drives the drum to rotate intermittently through a transmission mechanism. The invention can not only realize the continuous rotation of the radiotherapy equipment to adjust the direction of the radiotherapy equipment, perform radiotherapy to different directions of the neck, but also make the radiotherapy equipment rotate intermittently to improve the effect of radiotherapy.

Provided are a synchrotron control method, control apparatus, device, and storage medium, said control method comprising: when the irradiation of a first beam spot by a scanning radiation head of a synchrotron meets a preset stop condition, reducing the voltage of an electrostatic cutting plate and the voltage of a lateral high-frequency excitation electrode, such that the proton beam intensity outputted by said scanning radiation head is less than or equal to a preset intensity threshold; when the scanning radiation head meets a preset irradiation condition, the synchrotron returns to an operating state.

The invention discloses a multifunctional translation bed for close radiotherapy, positioning and treatment of a gynecological tumor, and the translation bed comprises a translation bed, a rear treatment bed and a simulation positioning bed. The central part of the upper surface of one end of the translation bed is provided with a pedestal, and four corners of the translation bed are symmetrically provided with electric telescoping rods. The inner side of each electric telescoping rod is provided with a positioning rod, and the upper surface of the pedestal is provided with first scale. The upper end of the pedestal is rotatingly connected with the lower end of a connecting rod. According to the invention, four corners of the translation bed are provided with the electric telescoping rods, and the translation bed can be adjusted in a moving process through the electric telescoping rods so as to prevent the translation bed from being inclined. The translation bed helps a patient maintain the posture, is convenient to move, and can record the angle and length of a source applicator in the body of the patient through the first scale and second scale. The source applicator can be taken out in the moving process, thereby reducing the discomfort of the patient, preventing the position of the source applicator from being changed in the moving process, and improving the radiotherapy effect.