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Chemical radioactive particles and implant equipment

A technology of radioactive particles and implantation equipment, which is applied in the field of radioactive particles and implantation equipment, can solve the problems of far distance, inaccurate docking of puncture needles, and inability to uniform particle implantation, etc., to achieve the effect of uniform distance

Active Publication Date: 2014-07-02
THE SECOND HOSPITAL OF SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, simply by means of the puncture needle 6, the push rod 7, and the support, the particles 4 cannot be uniformly implanted, because the shape of the tumor 5 is changing at any time, and it is not a rigid body. Affected by this, the corresponding For each selected implantation position, according to the distance outside the body (usually on the push rod), the stretching deformation caused by the movement of the tumor and the friction and stickiness during the gradual withdrawal of the puncture needle after a certain depth is inserted, As a result, the puncture needle cannot be accurately docked, and even far from the ideal position, so that the particles cannot be implanted uniformly, and the ideal treatment requirements cannot be met.

Method used

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  • Chemical radioactive particles and implant equipment
  • Chemical radioactive particles and implant equipment
  • Chemical radioactive particles and implant equipment

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Embodiment Construction

[0036] A kind of chemical radioactive particle, its overall performance is a particle string, the distance between the particles 4 in the particle string is the distance between the particles 4 required by the specification, because the distance has been limited by the appearance instructions of the particles 4, in other words, It is already well known by those skilled in the art, and will not be repeated here.

[0037] Particle 4, as described in the background technology section, generally uses iodine 125 or palladium 103 particles, that is, particles 4 with iodine 125 or palladium 103 built in, to form a particle string, multiple particles 4 are needed, and they are connected in sequence through a support , thus forming a particle string.

[0038] The connection structure between the support body and the particles is bonded, which is conducive to the on-site fabrication of the number of strings for each particle.

[0039] Both the substance used for bonding and the support...

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Abstract

The invention discloses chemical radioactive particles. The particles comprise particles with built-in radioactive substances, a plurality of particles are sequentially connected through supporting elements to form a particle string, and the connecting structure between the supporting elements and the particles are in an adhesive manner. Particles can be uniformly implanted conveniently according to the chemical radioactive particles.

Description

technical field [0001] The present invention relates to a radioactive particle and an implantation device for puncture treatment of tumor or radiointerventional treatment. Background technique [0002] At present, radioactive substances have been widely used in the medical field. For example, under the guidance of CT or ultrasound, radioactive isotope particles such as iodine 125 and palladium 103 are implanted into the selected tumor site with the help of a puncture needle (full name interventional puncture needle, referred to as puncture needle). For treatment, it is called iodine 125 seed implantation treatment in the medical field. [0003] For example, direct implantation of iodine 125 particles can inhibit tumor growth, achieve the same or better effect than conventional treatment, and retain its physiological functions. In addition, iodine 125 seed implantation is also a good choice for patients with cervical cancer and nasopharyngeal cancer who are unwilling to unde...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K51/00A61M36/12
Inventor 李玉亮李征刘斌王武杰王维王永正常海洋王莉莉
Owner THE SECOND HOSPITAL OF SHANDONG UNIV
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