High dose rate radiotherapy, system and method
Granted: June 11, 2024
Patent Number:
12005274
A radiotherapy system includes an X-ray target configured to convert an incident electron beam into a therapeutic X-ray beam, a purging magnet configured to redirect unwanted particles emitted from the X-ray target away from the therapeutic X-ray beam, and a particle collector configured to absorb the unwanted particles subsequent to redirection by the purging magnet. The particle collector may be configured to dissipate at least 50% of the energy of the incident electron beam.
Display screen with graphical user interface for radiotherapy machines
Granted: June 11, 2024
Patent Number:
D1030776
Correlation of dose and dose rate information to volume for radiation treatment planning
Granted: May 28, 2024
Patent Number:
11992703
A method used for planning radiation treatment accessing information that includes calculated doses and calculated dose rates for sub-volumes in a treatment target, and also accessing information that includes values of a measure of the sub-volumes as a function of the calculated doses and the calculated dose rates. A graphical user interface includes a rendering that is based on the calculated doses, the calculated doses rates, and the values of the measure.
Imaging-based self-adjusting radiation therapy systems, devices, and methods
Granted: May 28, 2024
Patent Number:
11992359
Systems, devices, and methods are presented for automatic tuning, calibration, and verification of radiation therapy systems comprising control elements configured to control parameters of the radiation therapy systems based on images obtained using electronic portal imaging devices (EPIDs) included in the radiation therapy system.
Time-domain interleaving of imaging and treatment X-rays in a radiation therapy system
Granted: May 21, 2024
Patent Number:
11986681
Time-domain interleaving of treatment X-rays and imaging X-rays during an image guided radiation therapy (IGRT) process in a radiation therapy system prevents scatter of the treatment X-rays from degrading the quality of X-ray images used to generate volumetric image data of a target volume. Imaging X-rays are delivered to the target volume during one or more imaging intervals, and one or more pulses of treatment X-rays are delivered to the target volume between the imaging intervals. In…
Triggered treatment systems and methods
Granted: May 21, 2024
Patent Number:
11986677
In various embodiments, a radiation therapy method can include loading a planning image of a target in a human. In addition, the position of the target can be monitored. A computation can be made of an occurrence of substantial alignment between the position of the target and the target of the planning image. Furthermore, after the computing, a beam of radiation is triggered to deliver a dosage to the target in a short period of time (e.g., less than a second).
Automatic generation of radiation treatment plan optimization objectives
Granted: May 14, 2024
Patent Number:
11980775
Generally speaking, pursuant to these various embodiments a memory stores prescribed treatment instructions for a particular patient radiation therapy. Those treatment instructions specify clinical metrics for goals pertaining to at least one treatment volume for the particular patient. Either directly or inferentially those clinical metrics are prioritized. A control circuit automatically converts those treatment instructions into resultant radiation treatment plan optimization…
Apparatus and method for forming prescribed radiation therapy treatment instructions
Granted: April 23, 2024
Patent Number:
11964169
A prescribing user can designate and prioritize clinical goals that can, in turn, serve as the basis for optimization objectives to guide the development of a radiation treatment plan. The prescribing user can then alter that prioritization of one or more clinical goals and view information regarding changes to fluence-based dose distributions that occur in response to those changes to relative prioritization amongst the clinical goals to thereby understand dosing tradeoffs that…
Modular pulsed pressure device for the transport of liquid cryogen to a cryoprobe
Granted: April 23, 2024
Patent Number:
11963707
A cryogenic medical device for delivery of subcooled liquid cryogen to various configurations of cryoprobes is designed for the treatment of damaged, diseased, cancerous or other unwanted tissues. The device is a closed or semi-closed system in which the liquid cryogen is contained in both the supply and return stages. The device is capable of generating cryogen to a supercritical state and may be utilized in any rapid cooling systems. As designed, the device comprises a number of parts…
Multileaf collimator cone enabling stereotactic radiosurgery
Granted: April 9, 2024
Patent Number:
11951330
An apparatus includes a first multileaf collimator comprising a plurality of pairs of beam-blocking leaves each comprising an end portion. The end portions of beam-blocking leaves of two adjacent pairs are configured to collectively form an aperture when the two adjacent pairs of beam-blocking leaves are closed. The aperture may be sized and shaped to allow a radiation beam to pass through for radiosurgery.
Asymmetric dual-mode ionization systems and methods
Granted: April 2, 2024
Patent Number:
11944845
An asymmetric dual-mode ionization chamber measurement system can include a first high-voltage plate, a second high-voltage plate and a readout plate. The first high-voltage plate can be disposed from the readout plate by a first active volume. The second high-voltage plate can be disposed from the readout plate by a second active volume. A high-voltage potential can be coupled to the first high-voltage plate during a first mode, and to the second high-voltage plate during a second mode.…
Time optimized radiation treatment
Granted: March 26, 2024
Patent Number:
11938342
In one embodiment, a method includes receiving treatment information relating to a treatment plan for proton- or ion-beam therapy intended to irradiate a target tissue; receiving machine-limitation information relating to one or more limitations of one or more machines involved in the proton- or ion-beam therapy; determining a time-optimized beam current for a proton or ion beam based on the treatment information and the machine-limitation information, wherein the time-optimized beam…
Method and apparatus that includes generating a clinical target volume for therapeutic radiation
Granted: March 19, 2024
Patent Number:
11931598
Image information regarding a particular patient is provided, which image information includes, at least in part, a tumor to be irradiated. These teachings can also include providing non-image clinical information that corresponds to the particular patient. A control circuit accesses the foregoing image information and non-image clinical information and automatically generates a clinical target volume that is larger than the tumor as a function of both the image information and the…
Radiotherapy methods, systems, and workflow-oriented graphical user interfaces
Granted: March 12, 2024
Patent Number:
11925817
Disclosed herein are radiotherapy systems and methods that can display a workflow-oriented graphical user interface(s). In an embodiment, a system comprises a first display in communication with a server, the first display configured to display a first graphical user interface; a second display in communication with the server, the second display configured to display a second graphical user interface, wherein the server is configured to: present the first graphical user interface for…
Radiation therapy system using a digital tomosynthesis process for near real-time localization
Granted: February 13, 2024
Patent Number:
11896851
A method of radiation therapy comprises, while a gantry of a radiation therapy system rotates continuously in a first direction through a treatment arc from a first treatment delivery position to a second treatment delivery position, causing an imaging X-ray source mounted on the gantry to direct X-rays through a target volume and receiving a set of X-ray projection images from an X-ray imager mounted on the gantry; determining a current location of the target volume based on the set of…
Radiation therapy system using a digital tomosynthesis process for near real-time localization
Granted: February 13, 2024
Patent Number:
11896851
A method of radiation therapy comprises, while a gantry of a radiation therapy system rotates continuously in a first direction through a treatment arc from a first treatment delivery position to a second treatment delivery position, causing an imaging X-ray source mounted on the gantry to direct X-rays through a target volume and receiving a set of X-ray projection images from an X-ray imager mounted on the gantry; determining a current location of the target volume based on the set of…
Systems and methods for energy modulated radiation therapy
Granted: February 6, 2024
Patent Number:
11894161
A method performed by a medical device, includes: providing a permanent magnetic field by a permanent magnet; operating an electromagnet to provide a first electromagnetic field with a first electromagnetic field value; and operating the electromagnet to provide a second electromagnetic field with a second electromagnetic field value; wherein the first electromagnetic field and the permanent magnetic field forms a first total magnetic field with a first total magnetic field value, and…
Cryosurgical probe with adjustable sliding apparatus
Granted: January 23, 2024
Patent Number:
11877781
A cryosurgical probe assembly including a cryosurgical probe having a shaft, an insulation element housed within the cryosurgical probe and being slideably repositionable relative to the shaft, and a fluid supply line having an inlet portion for connection to a cryogenic fluid source.
Projection mapping of radiation suites
Granted: January 16, 2024
Patent Number:
11872067
A radiation suite includes a room having a floor, a ceiling, and one or more walls, a radiation system including a gantry enclosing a radiation source and a couch, and an image projection system operable to project an image on a projection surface on at least a portion of the gantry and/or the couch, providing a calming environment for a patient to relax. The image projection system comprises a computer and one or more projectors operably controlled by the computer. The computer…
Flash therapy treatment planning and oncology information system having dose rate prescription and dose rate mapping
Granted: January 9, 2024
Patent Number:
11865364
A computing system comprising a central processing unit (CPU), and memory coupled to the CPU and having stored therein instructions that, when executed by the computing system, cause the computing system to execute operations to generate a radiation treatment plan. The operations include accessing a minimum prescribed dose to be delivered into and across the target, determining a number of beams and directions of the beams, and determining a beam energy for each of the beams, wherein the…
