Balloon catheter applied to portal vein

Abstract

The invention discloses a balloon catheter applied to the portal vein.The balloon catheter applied to the portal vein comprises a first catheter cavity, a second catheter cavity, a third catheter cavity, a source applying box and a catheter core.The far end of the first catheter cavity is connected with the balloon, and the near end of the first catheter cavity is connected with a filling valve.The second catheter cavity is formed in the length direction of the first catheter cavity, the far end of the second catheter cavity is a blunt end with an opening, and the near end of the second catheter cavity is connected with a catheter cap.The third catheter cavity is formed in the length direction of the first catheter cavity, the far end of the third catheter cavity is sealed, and an opening is formed in the near end of the third catheter cavity.The source applying box is arranged at the far end in the third catheter cavity and is fixedly provided with a pull wire, and a radioactive source is arranged in the source applying box.The catheter core is arranged in the third catheter cavity and is in butt joint with the source applying box.When the balloon catheter applied to the portal vein in the embodiment is used for treating a patient, pharmaceutical treatment can be achieved through the second catheter cavity, and internal radiotherapy on tumor cells can be achieved through the third catheter cavity.Compared with the prior art, injuries to the skin of the patient can be reduced, the treatment effect can be improved, and the efficiency and operability of treatment can be improved.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a balloon catheter applied to the portal vein. Background technique [0002] In recent years, the incidence of cancers such as cholangiocarcinoma, liver cancer, and liver cancer combined with portal vein tumor thrombus has been on the rise. Most patients have developed to the middle and late stages when they see a doctor, and often have severe obstructive jaundice, secondary infection and other symptoms. Moreover, the overall physical condition of the patient is poor, and there are certain safety hazards in surgical resection of cancer cells, and the prognosis is poor. Therefore, for patients with cholangiocarcinoma or liver cancer who are not suitable for surgical resection, conservative treatment is generally adopted. [0003] In the prior art, most of the conservative treatment methods for tumor cells are external beam radiotherapy, but external beam radiotherapy caus...

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Problems solved by technology

[0003] In the prior art, most of the conservative treatment methods for tumor cells are external beam radiotherapy, but external beam radiotherapy causes great damage to the patient's skin, and is affected by the patient's respiratory movement, so continuous irradiation cannot be performed. Therefore, the effect of radiotherapy is very limited

[0004] In recent years, domestic and foreign medical circles have begun to turn their attention to implanting radioactive substances into the portal vein to reduce damage to adjacent organs. However, with this treatment method, the displacement, transfer, removal and replacement of radioactive substances are uncontrollable. Therefore, clinical implementation is very risky

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