17 results about "Gamma knife" patented technology

The utility model relates to a radioactive source single-source testing device of radiotherapy equipment. The radioactive source single-source testing device comprises a shielding body, a positioning ring, a plug needle, a connecting frame and a baffle plate, the positioning ring is arranged on the connecting frame, the shielding body is arranged on the positioning ring and penetrates through the positioning ring, a ray penetrating hole is formed in the shielding body, and a plug needle is arranged in the ray penetrating hole. According to the utility model, in the physical test of the gamma knife of radiotherapy equipment, physical parameters of a plurality of single-source rays which form a radioactive source and penetrate through the to-be-tested hole pattern of the collimator are tested one by one, and the hole pattern with a better effect of the porous collimator can be preferably selected through comparative analysis of test data.

The invention relates to a coaxial and non-coplanar magnetic resonance guided head gamma knife radiotherapy system and a guiding method thereof. The system comprises a magnetic resonance imaging unit, a gamma knife irradiation unit, a treatment bed unit, a coordinate registration unit, a body surface optical tracking unit and a control system. The gamma knife irradiation unit is rigidly connected to the end face of the magnetic resonance imaging unit through a positioning interface, a positioning bed board is arranged on the treatment bed unit, a space reference mark is arranged on the positioning bed board, and the coordinate registration unit is connected between the magnetic resonance imaging unit and the treatment bed unit. The body surface optical tracking unit is mounted at the tail end of a positioning bed plate of the treatment bed unit; the control system is connected with the treatment bed unit, the gamma knife irradiation unit and the body surface optical tracking unit. Clear imaging of cranial soft tissue in a high-field-intensity environment can be realized, damage of external components to magnetic field uniformity and interference of an electron reflux effect caused by a high-intensity magnetic field to dose distribution are reduced, and radiotherapy precision is improved.

The present invention provides a dual-purpose head and body multi-functional gamma knife treatment head. The dual-purpose head and body multi-functional gamma knife treatment head includes a shielding body, a radiation source body, a collimator body, and a shielding door from top to bottom. The shielding body, the radiation source body, and the collimator body are all in the shape of a hemispherical cover. The radiation source body is provided with a radiation source cavity, and at least one radiation source is arranged in the radiation source cavity. The radiation source body is provided with a radiation switch mechanism, and the radiation switch mechanism controls the opening and closing of the radiation source cavity; when the radiation switch mechanism controls the opening of the radiation source cavity, the radiation source corresponds to the collimation opening position of the collimator body, and when the radiation switch mechanism controls the closing of the radiation source cavity, the radiation source is arranged in a dislocation with the collimation opening of the collimator body.

The utility model discloses a surface treatment hanging structure of a gamma knife transmission sliding block, which comprises a frame, a coaming fixedly arranged on the upper side of the frame, a plurality of hanging rods separably carried on the upper side of the coaming, and a hanging plate fixedly arranged on the lower sides of the hanging rods and used for hanging the sliding block, and the hanging plate is detachably provided with a fastening device. The sliding block is detachably connected with the hanging plate through the fastening device. According to the hanging structure, the sliding block is hung on the hanging plate through the fastening device, a worker can conveniently take and place the sliding block at any time through the hanging rod, the sliding block cannot be shielded, the working efficiency is improved, and the surface treatment quality is improved.

The present invention provides a multifunctional gamma knife treatment device with cone-beam CT detection. The multifunctional gamma knife treatment device with cone-beam CT detection is characterized in that the multifunctional gamma knife treatment device includes a cone-beam CT detection device and a gamma knife treatment device. The cone-beam CT detection device is arranged in front of the gamma knife treatment device. The cone-beam CT detection device includes a cone-beam CT detection frame, a head-body dual-purpose imaging tube device, and an imaging device detector. The head-body dual-purpose imaging tube device and the imaging device detector are symmetrically arranged on the cone-beam CT detection frame. The cone-beam CT detection frame includes a swivel support mechanism and a frame flip mechanism. The swivel support mechanism is flip-connected to the frame flip mechanism. By arranging the cone-beam CT detection device in front of the gamma knife treatment device and utilizing the flipping of the cone-beam CT detection device, both cone-beam CT detection and gamma knife treatment can be performed, thereby achieving multifunctional combined treatment and detection.

The utility model relates to the technical field of experimental instruments, in particular to a gamma knife cell experiment bracket. A gamma knife cell experiment support comprises a U-shaped frame and is characterized in that a left fixing shaft and a right fixing shaft are arranged on the two sides of the rear end of the U-shaped frame respectively, a small positioning pin shaft and a large positioning pin shaft are arranged on the lower side of the right fixing shaft, a horizontal frame is arranged at the front end of the U-shaped frame, a rectangular supporting table is arranged in the middle of the horizontal frame, and the rectangular supporting table is of a hollow structure. A perforated plate is placed on the rectangular supporting table. The gamma knife fixing device has the beneficial effects that the gamma knife fixing device can be conveniently and quickly fixed on gamma knife equipment, and the efficiency of a cell experiment is also improved.

The present invention provides a head-body dual-purpose gamma knife radiation source installation and replacement device. The head-body dual-purpose gamma knife radiation source installation and replacement device includes: a shielding room, a master-slave manipulator, a radiation source storage device, and a gamma knife shielding plug moving device. The shielding room covers one side of the gamma knife treatment head close to the radiation source conversion port, and the gamma knife shielding plug is arranged on the radiation source conversion port of the gamma knife treatment head. The radiation source storage device is arranged in the shielding room. The master-slave manipulator passes through the shielding room. The master-slave manipulator includes a master-end manipulator and a slave-end manipulator. The master-end manipulator is arranged outside the shielding room, and the slave-end manipulator is arranged inside the shielding room. A radiation source emergency receiving tray is arranged in the shielding room, and the radiation source emergency receiving tray is arranged below the radiation source conversion port.

The utility model relates to a gamma knife radiotherapy dose acquisition device. The gamma knife radiotherapy dose acquisition device comprises a beam outlet, the beam outlet is arranged on a tungsten cover of a gamma knife, the gamma knife radiotherapy dose acquisition device further comprises two finger-type ionization chambers, and the two finger-type ionization chambers are arranged on two sides of the beam outlet of the gamma knife and are distributed at an angle of 180 degrees. According to the utility model, the dose at the beam outlet of the gamma knife is detected in real time, the dose monitoring value in the treatment process is used as a closed-loop feedback of the opening angle of the collimator, the risk of pulse loss of the position feedback encoder of the collimator is detected and identified in real time, the accuracy of the treatment dose each time is ensured, and the treatment accuracy of equipment is improved.

The invention belongs to the field of diagnosis and treatment in medical images, and particularly relates to a slitting type superconducting magnet and a coil framework thereof. Comprising a left inner framework; a right inner skeleton; a left outer skeleton; a right outer skeleton; a plurality of coil mounting grooves are formed in the left inner framework and the right inner framework; coil mounting grooves are respectively formed in the left outer framework and the right outer framework; and a gap for intraoperative observation or surgical operation is formed between the left inner skeleton and the right inner skeleton. The superconducting magnet can be combined with a gamma knife, a heavy ion or puncture ablation device and the like for use, so that the superconducting magnet can be synchronously carried out with treatment operations such as the gamma knife, the heavy ion or puncture ablation device and the like, real-time guidance and real-time quality observation are realized, and accurate positioning of diseases is facilitated; a patient does not need to move back and forth between the diagnosis equipment and the treatment equipment, extra pain borne by the patient is reduced, the treatment period is shortened, and the treatment efficiency is improved.

The present invention relates to a control method for a treatment couch. The method comprises the following steps: 1) constructing a base coordinate system with the gantry's rotation center as the origin, then sequentially establishing coordinate systems for each axis, while simultaneously defining and describing the positions and orientations of the X, Y, and Z axes relative to the coordinate systems; 2) controlling the motion of the translational component; and 3) controlling the motion of the rotational component. This method addresses the treatment needs of patients with head and body lesions. The treatment process minimizes treatment harm to the patient, avoids damage to vital tissues and organs, and enhances the therapeutic efficacy of gamma knife radiotherapy.

The present invention discloses a bracket that provides assistance for installing a gamma knife head frame for patients undergoing gamma knife treatment of the head. The bracket includes: a frame for supporting the gamma knife head frame; shoulder supports on both sides, respectively mounted on the shoulders of the patient, both shoulder supports connected to the frame, and each shoulder support can move relative to the frame to adjust the position of the frame relative to the patient's head. The bracket of the present invention can be adjusted in various aspects such as height according to the conditions of different patients, and can also be partially folded for easy storage. When in use, the shoulder supports are placed on the patient's shoulders, and the shoulders support the overall weight of the bracket and head frame; the waist support is tied to the patient's waist with a belt, and the frame is kept in a balanced state through a series of components. After the bracket is assembled as a whole, it is stored in a folded manner, which is convenient for quick installation operations for later use.

The utility model discloses a kind of automatic cleaning device for gamma knife treatment head, it is related to gamma knife treatment technical field, including gamma knife main body, gamma knife main body side is provided with treatment bed, and the inside two sides of treatment bed are provided with sliding slot, sliding slot inside is provided with moving plate, and one end moving plate top is provided with treatment head body, gamma knife main body top is provided with mounting bracket, and the top of treatment head body is located the bottom of mounting bracket and is provided with telescopic cleaning tank, one end cleaning tank inside two sides and top are all provided with adjustable high-pressure cleaning nozzle, and the other end cleaning tank outside two sides are provided with drying mechanism, treatment head body below is located treatment bed and moving plate inside and is provided with multiple groups of drain hole, the utility model is good to meet complex treatment head cleaning demand, improve cleaning efficiency and effect, prolong the service life and maintenance period of equipment.

The invention belongs to the technical field of radioactive substance transportation, and particularly relates to a high-activity medical radioactive source transportation container which comprises a shielding container (1), a transportation bracket (2) and a protective cover (3), the protective cover (3) is arranged on the transportation bracket (2), and the shielding container (1) is arranged in a cavity defined by the protective cover (3) and the transportation bracket (2). The shielding container (1) comprises a shielding box body (11) of a hollow box type structure and a shielding door (12), the shielding door (12) is arranged on the side wall of the shielding box body (11) and connected with electric transmission lead screw devices (13) arranged on the two sides of the shielding box body (11) to achieve the function of opening and closing the shielding door (12), and the shielding container further comprises a push rod (17) which is arranged on the side wall of the shielding box body (11) and right faces the shielding door (12). The functions of loading the radioactive source for the high-activity gamma knife and remotely opening and closing the shielding door in the source loading and unloading process can be achieved.

Various implementations include a head frame holding device. The device includes a base, a head rest, and at least one head frame holder. The head rest has a first end coupled to the base and a second end spaced apart from the first end. The at least one head frame holder has a first end coupled to the base and a second end spaced apart from the first end. The second end of the at least one head frame holder includes a head frame coupler for coupling the head frame to the device.

The utility model belongs to the technical field of medical instruments, and particularly relates to a gamma knife head frame fixing device. A gamma tool bit frame fixing device comprises a bottom plate, a long-strip-shaped groove is formed in the center of the bottom plate, vertical enclosures are arranged at the two ends of the long-strip-shaped groove respectively, supporting tables are arranged on the lower portions of the vertical enclosures and the outer side of the long-strip-shaped groove respectively, the cross section of each vertical enclosure is in a U shape, N cushion plates are arranged on the lower side of the bottom plate, M cylindrical grooves are formed in the lower surface of the bottom plate, m cylindrical grooves are also formed in the lower surface of the base plate, and M cylindrical protrusions are arranged on the upper surface of the base plate. The fixing device has the beneficial effects that the operation is simple, the height of the fixing device can be adjusted, and the fixing device can be directly placed on a sickbed or other planes, so that a patient wearing the head frame can well lie flat, a good waiting state is ensured before a gamma knife is put on, the energy and physical strength of diagnosis and treatment of the patient are preserved, and the treatment effect is also ensured.

The invention relates to an automatic quality control device for a gamma knife. The device comprises a base, a die body assembly and a rotation driving assembly capable of driving the die body assembly to rotate, the die body assembly is arranged on the base and can rotate relative to the base, the die body assembly comprises a die body main body, a flat panel detector, a driving shaft and a steel ball, a mounting groove is formed in the middle of the die body main body, and the flat panel detector is embedded in the mounting groove; a plurality of mounting holes are formed in the front end of the die main body, the steel balls are correspondingly arranged in the mounting holes one by one, an end cover is arranged at the front end of the die main body, a driving shaft is arranged at the rear end of the die main body, and the die main body is connected with the rotary driving assembly through the driving shaft. According to the invention, the efficiency and reliability of quality control work are greatly improved, and the safety and accuracy of gamma knife treatment are guaranteed.

The invention relates to a gamma knife radioactive source transfer source pouring tank which comprises a shielding tank body, a mounting flange, a left manual pull rod, a right manual pull rod, a left shielding sliding block, a right shielding sliding block, a left transmission rack and a right transmission rack. The shielding rod is arranged in the cylindrical inner cavity, first guide grooves are formed in the two sides of the bottom of the cylindrical inner cavity respectively, a left shielding sliding block is arranged in the first guide groove in the left side, a right shielding sliding block is arranged in the first guide groove in the right side, and a left manual pull rod and a right manual pull rod are arranged on the two sides of the shielding tank body respectively. Each of the left manual pull rod and the right manual pull rod comprises a manual pull rod and a short rod, the manual pull rod is arranged on the shielding tank body through a hinge, one end of the short rod is connected with the manual pull rod through a hinge, the other end of the short rod is connected with the shielding slide block through a hinge, and the left transmission rack and the right transmission rack are respectively arranged on the left shielding slide block and the right shielding slide block. According to the invention, safe and automatic transfer and source reversing operation of the radioactive source can be realized, radiation exposure of operators is reduced, and the operation efficiency is improved.