15 results about "Radioactive seed" patented technology

Carriers for embodying radioactive seeds, as well as a device for loading and customizing brachytherapy carriers based on the principles of optimizing a more precise and predictable dosimetry, and adaptable to the geometric challenges of a tumor bed in a real-time setting. The present disclosure relates to a specialized loading device designed to enable a medical team to create a radionuclide carrier for each patient and tumor reliably, reproducibly and efficiently.

The invention relates to a double-cavity radiotherapy and chemotherapy integrated treatment capsule for brain glioma, which aims to solve the problems that the existing radioactive seed source or chemotherapy carrier cannot give consideration to radiotherapy and chemotherapy, the dosage is difficult to regulate and control, the medicine distribution is non-uniform and the like. The brain glioma double-cavity radiotherapy and chemotherapy integrated treatment bag is composed of a radiotherapy pipeline and a chemotherapy pipeline, the whole integrated treatment bag is a spiral pipe body, the radiotherapy pipeline is located in an inner ring, the chemotherapy pipeline is located in an outer ring, the radiotherapy pipeline is a closed cavity, a liquid radioactive source is contained in the closed cavity, and the liquid radioactive source is located in an outer ring. The chemotherapy medicine is released from the head end of the chemotherapy pipeline, the chemotherapy medicine is injected from the tail end of the chemotherapy pipeline, and the surface of the integrated treatment bag is coated with a composite antibacterial layer. According to the integrated treatment capsule, radiopharmaceuticals and chemical drugs are placed in the inner cavity and the outer cavity respectively, synergistic treatment of radiotherapy and chemotherapy is achieved through the synchronous effect of the two channels, and long-term low-dose release of the radiopharmaceuticals and the chemotherapy drugs is achieved and toxic and side effects are reduced by adjusting the screw pitch and the thickness of the tube wall.

This invention discloses a radioactive particle strip implantation system and method, relating to the field of medical device technology. It includes: an implantation gun and a particle strip module; the implantation gun includes: a gun body; a drive assembly disposed within the gun body, including a driver and a thrust control unit; a push rod, drively connected to the power output end of the driver; a particle strip placement slot disposed at the front end of the gun body for placing the particle strip module, and coaxially arranged with the push assembly; the gun body has a docking part at the front end of the particle strip module compartment for connecting an implantation needle; the push rod can pass through the particle strip module to push the particle strip into the implantation needle; the particle strip module includes: a module body; multiple radioactive particles and multiple hemostatic drug units are pre-sealed in an alternating arrangement within the module body; the radioactive particles and hemostatic drug units are coaxially arranged and can be pushed into the implantation needle by the push rod. This invention uses a pre-assembled plate stacking structure to make the spacing of the radioactive particles adjustable, simplifying on-site operation.

The invention discloses a clinical prediction model construction method and system for treating oligometastatic non-small cell lung cancer through radioactive particle implantation, and relates to the technical field of medical model construction, and the method comprises the steps: obtaining patient data, taking survival time as a main endpoint event, employing a Cox regression model to carry out single-factor analysis on factors affecting patient prognosis, and obtaining a single-factor analysis result; determining the relationship between each clinical feature and survival time, and incorporating the important factors influencing the prognosis into multi-factor Cox regression analysis to determine independent risk factors influencing the survival prognosis of the patient; generating a first clinical prediction model according to each independent risk factor nano-construction; cD3 + AC, CD4 + AC, CD8 + AC, combined treatment, complete treatment and the number of metastatic lesions are taken as variables together to be included in construction of a clinical prediction model, and a second clinical prediction model is manufactured and generated. Independent risk factors influencing the prognosis of a radioactive particle implantation treatment few-metastatic NSCLC patient are confirmed, the clinical prediction model is established, the treatment prognosis can be accurately predicted, and the treatment cost is reduced. And screening of dominant benefit people is facilitated.

The utility model relates to a kind of gastrointestinal tumor endoscopic radioactive particle implantation device, its structure includes operating part, first striker, second striker, catheter, particle bin, particle loading part and puncture needle;The catheter one end is connected with operating part, and the other end is detachably connected with particle loading part, and the puncture needle is located the end of the particle loading part;First channel and second channel are equipped in the catheter, first striker and second striker pass through operating part respectively, and the first striker is inserted into the first channel, and the second striker is inserted into the second channel, particle bin mounting channel for installing particle bin is equipped in the end of the first channel, and the particle loading part is used to transport the particle exported from particle bin to the position corresponding with puncture needle.The utility model solves the problem of repeatedly loading particles in the prior art, simplifies the operation process, and reduces the operation time.

This invention relates to the field of medical devices, specifically to a radioactive particle implantation needle for interventional radiology of tumors. The needle includes an implantation needle body with a delivery channel along its length. A material storage slot communicating with the delivery channel is located in the middle of the implantation needle body. The material storage slot contains a supply compartment with a particle placement cavity. A sealing mechanism for sealing the particle placement cavity is located at the bottom of the supply compartment. The supply compartment also contains a compression mechanism for compressing radioactive particles towards the bottom of the particle placement cavity. This invention employs a detachable integrated structure for the implantation needle body and supply compartment, allowing for pre-loading of particles before surgery. This eliminates the need for manual loading of particles into the delivery channel during surgery using external tools, reducing intraoperative steps. The fixing bolts and threaded holes enable quick assembly and disassembly, further shortening preoperative preparation and surgical time, and improving operational convenience.

The utility model relates to the field of medical instruments, in particular to a nasal esophageal tracheal fistula three-balloon nasal feeding tube composite set loaded with radioactive particles, which comprises a tube body, a lower blocking balloon, a particle balloon, an upper blocking balloon, a tube body butt joint structure and a nasal guide structure. The radion-loaded three-balloon nasal feeding tube composite set for the nasal esophageal and tracheal fistula is a medical instrument which is combined with the nasal feeding tube and can be used for blocking and treating a fistula opening of a patient suffering from the esophageal and esophageal fistula and carrying out precise targeted radiotherapy on a cancerous part of esophageal cancer, and feeding nutrition of the patient is convenient to convey. The device is simple in structure, convenient to operate, high in working and operating efficiency, stable in operation, beneficial to popularization and promotion, capable of effectively relieving pain of patients, convenient to mount and dismount, obvious in acting effect, capable of achieving differentiated treatment, stable in whole and high in pertinence, and has wide market prospects.

The application discloses a kind of radioactive seed automatic loading system, the system includes sequencing module and clip feed assembly;Sequencing module includes vibrating hopper, vibrating hopper includes discharge port, sequencing module is used to sort and send radioactive seed poured into vibrating hopper to discharge port;Clip feed assembly includes clip holder, clip holder is fixedly installed at the discharge port of vibrating hopper;Clip is clamped on the side wall of the side of clip holder away from vibrating hopper;Clip holder is provided with only through one radioactive seed radioactive seed feeding channel, the opening of one end of radioactive seed feeding channel is connected with the discharge port of vibrating hopper, the other end bottom of radioactive seed feeding channel is provided with bullet entry channel, bullet entry channel is connected with the bullet entry port of clip;The radioactive seed automatic loading system can load radioactive seed into the clip of protective device.

Custom radioactive seed carriers are fabricated pre-operatively and / or intra-operatively to more precisely match carrier specification of a radiation treatment plan for a particular patient. One or more carrier specification component, such as a 3D printer, injection molding system, machining component, or bioprinter, may be utilized to create the custom carrier.

The application relates to a radioactive particle implantation positioning device and a use method thereof, which comprises a support plate and a U-shaped plate fixed on the support plate, longitudinal sliding mechanisms are arranged on the two sides of the U-shaped plate, a transverse sliding mechanism is arranged between the two longitudinal sliding mechanisms, a positioning assembly is arranged on the top of the transverse sliding mechanism, a first angle adjusting mechanism is arranged between the transverse and longitudinal sliding mechanisms, a second angle adjusting mechanism is arranged on the positioning assembly, and the first and second angle adjusting mechanisms are matched to facilitate the adjustment of the inclination angle of a puncture needle. The longitudinal sliding mechanism is arranged to realize longitudinal quantization positioning, the transverse sliding mechanism is arranged to realize transverse accurate positioning, the first and second angle adjusting mechanisms are matched to realize angle adjustment, the problem of insufficient manual adjustment precision of a traditional device is solved, the particle spacing and puncture point error are effectively avoided, the radioactive particles are uniformly arranged, the treatment precision of the radioactive particle implantation is improved from the positioning root, and the minimally invasive treatment effect is ensured.

The application discloses a kind of radioactive particle fast implantation device and system, device includes: positioning needle;Guide needle, it is located in positioning needle and can be stretched from the distal end of positioning needle, guide needle as particle transport channel;Propelling needle, it is located in guide needle and can be stretched from the distal end of guide needle, propelling needle is used to push particle from guide needle;The end where the distal end of guide needle is located is working section, working section is made of memory material, it is curved when not under external force, the tangent of the axis of working section and the axis of working section distal end is first tangent, the angle α of first tangent and the axis of positioning needle is larger with the length of working section stretching the distal end of positioning needle increases.Implantation device can realize radioactive particle annular three-dimensional distribution, that is, it can be distributed along the circumferential direction of positioning needle and can be distributed along the axial direction parallel to positioning needle, and the arrangement position precision is high.

The utility model relates to the technical field of medical instruments, in particular to a titanium clip capable of carrying radioactive particles. The titanium clamp capable of carrying the radioactive particles comprises a clamping section, a clamping section, the radioactive particles and a locking assembly, the clamping section is composed of a first bending part, a connecting edge and a second bending part, the two ends of the clamping section symmetrically extend to form a first clamping arm and a second clamping arm, and the first clamping arm and the second clamping arm are the same in length. Placing grooves are formed in the inner side of the first clamping arm and the inner side of the second clamping arm, a plurality of radioactive particles are clamped in the placing grooves, short-distance irradiation treatment on tumors can be achieved, the locking assembly further plays a clamping role, the stability of the titanium clamp is improved, and the titanium clamp is prevented from moving or falling off; according to the titanium clip provided by the utility model, the radioactive particles are combined with the titanium clip, so that accurate treatment of tumor cells is realized, side effects are reduced, and a new solution is brought to the field of tumor treatment. Operating forceps use the titanium clip provided by the utility model, continuous quick ligation can be realized, the infection risk is reduced, and the operation efficiency is improved.

A kit for a modular applicator 100 suitable for delivering brachytherapy treatment. The kit comprises a tubular central body 110 comprising a seed passage channel to enable passage of a radioactive s

The application discloses a radioactive particle cartridge filling device, which comprises four modules, namely, a positioning module, a grabbing module, a filling module and a driving module. The specific structure of the positioning module comprises a fixed base, an XYZR axis displacement platform, a cylinder support frame and a sliding block connecting piece. The specific structure of the grabbing module comprises a particle gun. The specific structure of the filling module comprises a particle cartridge, a particle cartridge filling frame and a connecting shaft block. The specific structure of the driving module comprises a micro cylinder and a screw sliding table. The radioactive particle cartridge filling device can realize accurate grabbing and precise control of particles, stable filling, omission of the particle bin installation step, improvement of the filling efficiency, safety guarantee and automatic operation.

The application discloses a radioactive particle gun and a use method thereof, and relates to the technical field of medical devices, in particular to a particle grabbing device of a radioactive particle gun. The device is composed of a particle gun main body, a push rod, a gun muzzle and an end cover. The application realizes stable posture keeping of particles, point-to-point transmission and efficient operation, and ensures accurate grabbing of radioactive particles. Meanwhile, the application also has the ability of precise output control, ensures output of only one particle each time, and realizes precise execution of the particle grabbing function. The design of the application follows the principle of low coupling and high cohesion, and can be easily adapted to various additional products to meet the requirements of complex and changeable application scenarios.