356 results about "Patients position" patented technology

A system and method for measuring and correcting the position of a patient are disclosed. According to an aspect of the invention, reference coordinates for particular body locations on the patent are determined. At a later treatment session, the relative positioning of the patient's body locations are adjusted to match the relative positioning of the reference coordinates. The entire body of the patient can thereafter be moved as a single unit to match the patient's body location with the absolute location of the reference coordinates.

The invention comprises an X-ray system that is orientated to provide X-ray images of a patient in the same orientation as viewed by a proton therapy beam, is synchronized with patient respiration, is operable on a patient positioned for proton therapy, and does not interfere with a proton beam treatment path. Preferably, the synchronized system is used in conjunction with a negative ion beam source, synchrotron, and/or targeting method apparatus to provide an X-ray timed with patient respiration and performed immediately prior to and/or concurrently with particle beam therapy irradiation to ensure targeted and controlled delivery of energy relative to a patient position resulting in efficient, precise, and/or accurate noninvasive, in-vivo treatment of a solid cancerous tumor with minimization of damage to surrounding healthy tissue in a patient using the proton beam position verification system.

A system and method for determining and monitoring various characteristics of a patient positioned on a patient support apparatus, such as a bed, stretcher, or cot, is disclosed. The system and method involve monitoring the forces exerted by the patient on one or more force sensors, which may be load cells on the support apparatus. These force sensors will detect vibrations that correspond to various conditions of the patient, including the patient's heart rate, breathing rate, and/or the seizure status of a patient. These vibrations may be analyzed, such as by Fast Fourier Transforms, in order to determine the various conditions of the patient.

The present invention is related to a patient positioning imaging device for positioning a patient in a hadron therapy device provided with a rotatable gantry (20). The patient positioning imaging device comprises a rotatable structure (10) provided with an extensible arm or foldable pivoting arm (12) arranged for connecting an imaging beam source (121) and an extensible structure or foldable pivoting structure (14) arranged for carrying an imaging beam receiver (141). The rotatable structure (10) is arranged for taking CBCT shots of the patient while the patient is located in an offset position with respect to an isocentre of the hadron therapy device, said offset position being in the direction of a rotational axis of the rotatable gantry (20). The rotatable structure (10) is arranged for being rotated while the rotatable gantry (20) remains fixed, and while the extensible or pivoting arm (12) and the extensible or pivoting structure (14) are in extended or unfolded position.

A method for determining a translation of a three-dimensional pre-operative image data set to obtain a registration of the three-dimensional image data with a patient positioned in a projection imaging system. In one embodiment the user identifies an initial three-dimensional organ center from projections and extreme contour landmark points of the object on a set of projections. A set of contour points for the image object in each of a plurality of three-dimensional cross-section planes; is obtained and the points projecting nearest to the user-identified landmark points are selected. A three-dimensional grid having a predetermined number of intervals at a predetermined interval spacing centered at the user-identified organ center is defined. The three-dimensional image data contour points as centered onto each grid point are projected for evaluation and selection of the grid point leading to contour points projecting nearest to the user-identified landmark points. This selection leads to the iterative definition of a series of improved estimated three-dimensional organ centers, and associated translation vectors. Registration of a three dimensional image data to the patient positioned in a projection imaging system will allow, among other things, overlay of a visual representation of a pre-operative image object onto a projection image plane that can serve as a visual tool and a surgical navigation aid. In particular, the position and orientation of a medical device can be shown with respect to the three-dimensional image data and thus enable quicker, safer, and less invasive navigation of the medical device to and within an organ of interest.

The invention comprises an X-ray system that is orientated to provide X-ray images of a patient in the same orientation as viewed by a proton therapy beam, is synchronized with patient respiration, is operable on a patient positioned for proton therapy, and does not interfere with a proton beam treatment path. Preferably, the synchronized system is used in conjunction with a negative ion beam source, synchrotron, and/or targeting method apparatus to provide an X-ray timed with patient respiration and performed immediately prior to and/or concurrently with particle beam therapy irradiation to ensure targeted and controlled delivery of energy relative to a patient position resulting in efficient, precise, and/or accurate noninvasive, in-vivo treatment of a solid cancerous tumor with minimization of damage to surrounding healthy tissue in a patient using the proton beam position verification system.

Personal warming systems and apparatuses for use in hospitals and other settings. In one embodiment, a heating mattress or pad for warming a patient during a hospital procedure can include a heating element positioned between a first foam portion and a second foam portion. The heating element and the foam portions can be at least partially enclosed in a fluid-resistant cover. The heating element can be operably connected to a control unit that allows an operator to select between a plurality of temperature options for the heating pad. In another embodiment, the heating pad can include one or more radiolucent, or at least generally radiolucent, features that will not appreciably obscure x-ray images taken of a patient positioned on the heating pad. In one aspect of this embodiment, the radiolucent features can include one or more of a carbon-based heating element, an optical temperature sensing device, and/or a thermally responsive state-changing device.

A surgical navigation apparatus and a method for same are disclosed. The surgical navigation apparatus according to the present invention comprises: a first matching unit which matches the position of a patient and reference image data, using the reference image data of the patient photographed prior to a surgery and patient position data; a second matching unit which matches, on a real-time basis, the patient position data and comparative image data received from a photographing unit; and an image-processing unit which matches, on a real-time basis, the comparative image data and the reference image data using the patient position data. The apparatus of the present invention enables images photographed during the surgery to be provided on a real-time basis, and to be compared with the images photographed prior to the surgery, and enables the provided images, including the current position of an endoscope and peripheral structure, to be outputted in a 3D format, thus increasing convenience for a surgeon.

An overlay mattress has a plurality of internal elevating means, such as inflatable bladders, for raising selected portions of the mattress to achieve a wide range of patient positions. A fluid such as air may be supplied from a conventional surgical room air supply, a compressed canister, or a compressor to inflate the bladders. A fluid distribution system controls the flow of fluid to desired bladders. The overlay mattress may be used in conjunction with conventional surgical tables and mattresses. A thermal control means is also included in the overlay mattress to regulate a patient's body temperature. A pressure shifting means is also included to reduce the risk of bedsore formation.

A patient positioner for maintaining a patient's position during a medical procedure is provided. The patient positioner includes a generally rectangular body anchoring portion having a longitudinally disposed head and tail ends and two transversely disposed opposing side ends, placeable atop an operating table. There are a pair of spaced apart chest straps, a pair of spaced apart support base straps, a pair of upper arm straps, and a pair of wrist straps. There is a generally rectangular substrate backing having a longitudinally disposed head and tail ends and two transversely disposed opposing side ends, substantially concentrically disposed on and fixedly attached to the body anchoring portion. In one embodiment, an extender strap is further provided to facilitate securement of the support base straps to a support structure. In use, the body anchoring portion is positioned under the patient's torso with the substrate backing side ends wrapped over the arms while the chest straps are brought over the patient's shoulders and criss-crossed over the patient's chest and secured on an opposing side rail while the upper arm and wrist straps are brought from underneath the patient's torso and wrapped over the patient's arms. The support base straps are placed through a break of the operating table and brought around the support base and secured to each other to prevent the patient from sliding toward the head end of the operating table in the Trendelenburg position.

Systems and methods provide patient position information to a user. A patient positioning device is placed on a patient in a predefined location. The patient positioning device determines a relative patient position with respect to at least one known reference axis. The patient positioning device communicates patient position information including or with reference to the at least one known reference axis. The communicated patient position information allows the user to position the patient and/or a surgical tool using the communicated patient position information.

The disclosed invention is a patient monitoring system that employs a pressure sensitive pad. The pad is placed beneath a patient who is lying in bed or sitting in a chair. When weight is removed from the pad, an alarm is given. The pad comprises an upper layer of circuitry and a lower layer of circuitry. When the respective layers of circuitry are in contact, the alarm remains off, but when the layers of circuitry become separated, the alarm is given. This invention is generally for use in hospitals and nursing homes to alert caregivers when a patient falls out of a bed or a wheelchair; or if a patient otherwise leaves a bed or chair against the wishes of the caregiver. This situation is of special concern with elderly patients, post operational patients, and/or at night when nursing staffs are reduced.

A apparatus for accurately measuring radiation beams during treatment which comprises a dosimeter which is used to measure the radiation; an optical marker which is used to determine the patient position; and said dosimeter and said optical marker are connected to one another used to provide and display simultaneously a radiation dose reading and a measurement of the patient's movements during treatment.

A digital imaging system provides color information of an entire port wine stain or other skin condition with a single image in CIE L*a*b* color space (L*, a*) derived from RGB pixel data (R, G, B). Cross-polarization optics produce marked reduction in specularly reflected light in the images. A patient positioning device allows for repeatable positioning of the patient's head or body portion. The digital nature of the system provides a near real-time mapping of melanin and erythema or other skin chromophore metrics. The cross-polarized diffuse reflectance color digital imaging system obtains subsurface skin color information and acquisition of facial images in a reproducible fashion at a fixed distance from an illumination source at optimized angles of view depending on the region of interest being imaged.

An X-ray device for generating a panoramic tomogram is designed so that a revolving arm can move between a first position, where an X-ray generator and an X-ray receiver that are both supported by the revolving arm oppose each other through the head of a patient positioned in a patient positioning station, and a second position, where an operator of the X-ray device can look at the patient's head from a side view, thereby allowing the operator to properly position the patient in the patient positioning station. The incorporation of a second X-ray receiver additionally allows for the generation of a cephalogram. The incorporation of a blind prevents the patient from visually or physically interacting with selected components of the apparatus.

Multiple methods of performing whole body scans using a cost-effective small magnetic resonance imaging (MRI) system are disclosed. High magnetic field homogeneity of an open, small MRI is obtained by a combination of passive shimming and high order active shimming. A dynamic shimming while imaging (DSWI) method is provided to dynamically optimize field homogeneity for each scanned slab (slice) during imaging. Also provided is a method that scan a large subject volume only using a limited optimal imaging region of a magnet by continuously adjusting patient position and orientations with a 6 degrees of freedom patient table.

A method for registration of virtual endoscopy images in first and second patient positions comprises performing colon segmentation and feature extraction, including centerline and colon surface data for each of the images; resampling the centerline and colon surface data; computing respective local descriptors; pairing point correspondences on the centerlines between the first and second images by minimal cost matching; extrapolating the centerline point correspondences to a 3-dimensional/3-dimensional (3D/3D) transformation between the first and second images. The method also includes selecting a position for a virtual endoscope in one of the images; associating an orthogonal reference frame with the virtual endoscope; and applying the 3D/3D transformation to the orthogonal reference frame so as to derive a corresponding transformed reference frame for the virtual endoscope in the other of the images.

A system for transporting an nonambulatory patient including a mattress having longitudinal sides and a bottom surface and a panel having longitudinal side edges, a head end edge, and a bottom surface coated with a low coefficient of friction coating. The panel is positioned below the bottom surface of the mattress, and includes a plurality of side straps extending outwardly from the longitudinal side edges in spaced relation to one another. A handle is located along at least one edge of the panel. The side straps are wrapped around the mattress so as to cause the mattress to curl so that the longitudinal sides are moved upwardly to thereby form a central longitudinal pocket suitable for cradling a patient positioned upon the mattress. The head end handle is then pulled to drag the curled mattress and the panel along a surface upon the low coefficient of friction coating.

A disposable slip-resistant and preferably absorbent protective medical table sheet for protecting a medical table, such as an operating table or an examination table, from contamination due to contact with bodily fluids or other contaminants associated with a patient positioned upon the table sheet covering the medical table, and for resisting slippage between the patient and the table sheet and between the table sheet and the medical table and, if a lift sheet is used, between the table sheet and the lift sheet. The table sheet preferably includes an impermeable layer with a slip-resistant and absorbent layer of foam material on its upper side and a distribution of slip-resistant material on its lower side. The lower side of the impermeable layer may itself be comprised of slip-resistant material. The table sheet is preferably fan-and-book-foldable into a compact yet rapidly unfoldable table sheet.

A patient positioning device provided to position, protect and secure a patient on a support surface for transfer to another support surface or for preparation for surgery. The positioning device includes a sheet with a first and second flexible substrate coupled to the sheet's top surface. The first and second flexible substrates may be padded. These substrates are capable of wrapping around an adjacent arm of the patient creating a wrapped engagement. This wrapped engagement may pad, protect, secure and elevate the arms from injury caused by pressure imparted thereon during surgery or transport. This positioning device may be lifted or slid from one support surface to another. Optionally, a third and fourth flexible substrate capable of wrapping around an adjacent arm of the patient creating a second wrapped engagement may be used for additional securing. Optionally, an inflatable support may be used with the device to aid when sliding or translating the device 10 with the patient thereon.