Radioactive particle taking-out device

Abstract

The invention discloses a radioactive particle taking-out device, and relates to the technical field of medical treatment. A puncture needle is provided with two T-shaped grooves; a sliding bead and a sliding rod, which are fixedly connected to a particle cover, can slide in the two T-shaped grooves; the particle cover is connected with a pin of a push-pull rod through a connecting block in a sleeved mode; the push-pull rod can drive the particle cover to linearly slide in a needle hole; after the particle cover is pushed to be close to a needle point, the sliding bead is limited by the T-shaped groove and cannot move out of the needle hole; the particle cover does not slide any longer; the particle cover does unfolding motion towards the two sides under the action of thrust; the particles can be rapidly recycled through the unfolding motion; cleaning of the interior of the particle cover is facilitated; improvement of the cleanliness of treatment is facilitated; the puncture needle is marked with a scale, so that more intuitive data information can be provided for an operator; after being pulled, the particle cover is closed to clamp and wrap particles, slides into the needle hole along the inner wall of the needle and completely retracts into the needle hole; damage to normal tissue in the particle taking-out process is avoided; and the operation safety is guaranteed.

Description

technical field [0001] The invention relates to a device for taking out radioactive particles, which belongs to the field of medical devices, and is especially suitable for implanting radioactive particles in therapeutic operations. Background technique [0002] Radioactive seed implantation therapy is a treatment method that implants a radioactive source into the tumor to destroy the tumor. The particle implant therapy technique involves a radioactive source, the core of which is radiating particles. The clinical application is a substance called iodine 125. Each iodine-125 particle is like a small sun, with the strongest rays near the center, minimizing damage to normal tissues. Radioactive seed implantation therapy is an effective treatment method. Seed implantation requires a strict implantation plan to make the internal dose distribution of the tumor uniform, and make the peripheral dose accurate and sufficient, and reduce the surrounding normal tissue damage. However...

AI Technical Summary

Problems solved by technology

Radioactive seed implantation therapy is an effective treatment method. Seed implantation requires a strict implantation plan to make the internal dose distribution of the tumor uniform, and make the peripheral dose accurate and sufficient, and reduce the surrounding normal tissue damage. However, during the implantation process Inevitably, the position error of particle implantation will occur due to various reasons. Instead of accurately hitting the tumor, the particles will damage normal tissues and cause serious medical accidents.

Therefore, there is an urgent clinical need for a device that can remove radioactive particles that have serious deviations in the implantation position. There are many particle implantation devices on the market, but there is no device for particle removal

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