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 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.