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CN-122003277-A - Arm lifting support platform for radiation therapy

CN122003277ACN 122003277 ACN122003277 ACN 122003277ACN-122003277-A

Abstract

A patient support platform and method for supporting a patient during radiation therapy. The platform includes pelvic and back support members, left/right armrest adapters, left/right armrest units, and handle bars. Each armrest unit includes an armrest base linearly displaceable along a respective armrest adapter, an armrest rod extending distally forward from an end of the armrest base and pivotable relative to the armrest base, and an armrest arm support for supporting an arm portion, the armrest arm support being linearly displaceable along a length of the armrest rod. The handle bars are detachably coupled to the left and right grab bars for grasping by the patient's hands when the arm sections are supported. At least a portion of the armrest unit is selectively adjustable to accommodate the patient such that each arm is raised and extends to the front of the body, an arm portion of each arm is supported by a respective armrest arm support, and the handle bar is held in the hand such that the arm is displaced from the path of the applied radiation.

Inventors

  • M. Marash
  • Yuval MORAN

Assignees

  • P-Cure有限责任公司

Dates

Publication Date
20260508
Application Date
20240903
Priority Date
20230929

Claims (17)

  1. 1. A patient support platform for supporting a patient during radiation therapy, the platform comprising: A pelvic support member configured to support a pelvis of a patient; a back support member configured to support a back of a patient; an armrest adapter including a left armrest adapter coupled to a left side of the back support member and a right armrest adapter coupled to a right side of the back support member, and A handrail unit comprising a left handrail unit adjustably coupled to the left handrail adapter and a right handrail unit adjustably coupled to the right handrail adapter, each of the handrail units comprising: -a handrail base linearly displaceable along a respective handrail adapter; a grab bar extending distally from an end of the armrest base forward of the patient and pivotable relative to the armrest base, and -A handrail arm support linearly displaceable along a length of the handrail rod and configured for supporting an arm portion of a patient, and A handle bar detachably coupled to the left grab bar of the left armrest unit and the right grab bar of the right armrest unit, the handle bar configured to be gripped by a patient's hand when the arm section is supported, Wherein at least a portion of the armrest unit is selectively adjustable to accommodate a patient positioned on the support platform such that each arm of the patient is raised and extended to the front of the body, wherein an arm portion of each arm is supported by a respective armrest arm support, and a hand of the patient grasps the handle bar such that the patient's arm deviates from the path of the applied radiation of the radiation treatment.
  2. 2. The patient support platform of claim 1, wherein the armrest base is configured to slide into a slotted portion of the respective armrest adapter so as to couple the respective armrest unit with the armrest adapter.
  3. 3. The patient support platform of claim 1, wherein the armrest unit comprises at least one of: a armrest base switch configured for locking and unlocking a linear displacement of the armrest base, and A grab bar switch configured for locking and unlocking linear displacement of the grab arm support.
  4. 4. The patient support platform of claim 1, wherein the armrest unit comprises at least one of: a reference mark on the armrest base to facilitate linear displacement of the armrest base a selected distance, and Reference marks on the handrail bar to facilitate linear displacement of the handrail arm support by a selected distance.
  5. 5. The patient support platform of claim 1, wherein the armrest arm support comprises a first surface connected to and perpendicular to a second surface, wherein the arm portion comprises an elbow or upper arm of a patient.
  6. 6. The patient support platform of claim 1, wherein each of the armrest adapters comprises a U-shaped strap mount configured for mounting on a side of the back support member.
  7. 7. The patient support platform of claim 6, wherein each of the armrest adapters further comprises: A first stop coupled to the back support member adjacent a first end of the strap support, the first stop configured to prevent linear displacement of the strap support in a first direction; A second stop coupled to the back support member adjacent a second end of the strap support, the second stop configured to prevent linear displacement of the strap support in a second direction, and At least one knob configured for loosening or tightening the tightening of the strap support and the back support member.
  8. 8. The patient support platform of claim 1, wherein the handle bar is removably coupled with the left and right handle bars by a first protrusion on a first end of the handle bar engaging a recess on an end of the left handle bar and a second protrusion on a second end of the handle bar engaging a recess on an end of the right handle bar.
  9. 9. The patient support platform of claim 1, further comprising a platform adjuster configured to rotate at least one platform surface of the platform about at least one axis of rotation or displace at least one platform surface of the platform along at least one axis of displacement.
  10. 10. The patient support platform of claim 1, wherein the patient support platform comprises a chair, and wherein the patient is in a sitting position.
  11. 11. A method for supporting a patient on a patient support platform during radiation therapy, the method comprising the steps of: Providing a support platform comprising a pelvic support member configured to support a pelvis of a patient, a back support member configured to support a back of the patient, an armrest adapter comprising a left armrest adapter and a right armrest adapter, an armrest unit comprising a left armrest unit and a right armrest unit, and a handle bar; Coupling the left armrest adapter to a left side of the back support member and the right armrest adapter to a right side of the back support member; adjustably coupling the left armrest unit to the left armrest adapter and the right armrest unit to the right armrest adapter, each of the armrest units comprising: -a handrail base linearly displaceable along a respective handrail adapter; a grab bar extending distally from an end of the armrest base forward of the patient and pivotable relative to the armrest base, and -A handrail arm support linearly displaceable along a length of the handrail rod and configured for supporting an arm portion of a patient; Positioning a patient on the support platform; Detachably coupling the handle bar with a left grab bar of the left handrail unit and a right grab bar of the right handrail unit, and The positioning of at least a portion of the armrest unit is selectively adjusted to accommodate a patient positioned on the support platform such that each arm of the patient is raised and extended to the front of the body, wherein an arm portion of each arm is supported by a respective armrest arm support, and the patient's hand grasps the handle bar such that the patient's arm is offset from the path of the applied radiation of the radiation treatment.
  12. 12. The method of claim 11, wherein selectively adjusting the positioning of at least a portion of the armrest unit comprises linearly displacing the armrest arm support along a length of the armrest rod of the armrest unit.
  13. 13. The method of claim 11, wherein selectively adjusting the positioning of at least a portion of the armrest unit comprises linearly displacing the armrest base of the armrest unit relative to the armrest adapter.
  14. 14. The method of claim 11, wherein adjustably coupling the left armrest unit to the left armrest adapter and the right armrest unit to the right armrest adapter comprises sliding an armrest base of a respective armrest unit into a slotted portion of the respective armrest adapter.
  15. 15. The method of claim 11, wherein removably coupling a handle bar includes engaging a first protrusion on a first end of the handle bar with a recess on an end of the left-hand bar and engaging a second protrusion on a second end of the handle bar with a recess on an end of the right-hand bar.
  16. 16. The method of claim 11, wherein positioning the patient comprises positioning the patient in a sitting position.
  17. 17. The method of claim 11, wherein the radiation therapy comprises proton radiation therapy.

Description

Arm lifting support platform for radiation therapy Technical Field The present disclosure relates generally to the field of radiation therapy, and in particular, to a platform for supporting a patient during radiation therapy. Background Remote therapy is defined as a method of treatment in which the irradiation source is at a distance from the body to be treated. X-rays and electron beams have long been used in telemedicine to treat various cancers. Unfortunately, X-rays exhibit a linear energy transfer approaching an exponential decay function, and thus are extremely safe to use for deep embedded tumors (deeply embedded growths). The use of heavy particles, particularly hadrons, more particularly protons, in telemedicine has been found to increase in acceptance due to their ability to penetrate to a specific depth without significantly damaging the intervening tissues. In particular, the linear energy transfer of a hadron exhibits an inverse depth profile, where a pronounced bragg peak is defined as the point where the hadron deposits most of the energy and occurs at the end of the hadron path. For electrons, the bragg peak is not observable due to high scattering. For protons with energies below about 70 MeV, scattering significantly suppresses the bragg peak. As a result of this effect, higher energy can be directed onto the embedded tumor than X-rays and electron beams that specifically damage the intervening tissue. While the term hadrons includes a broad range of particles, in practice protons and various ions are most widely used in therapy. For clarity, the treatment accomplished with protons will be described herein, however this is not meant to be limiting in any way. Protons or ions may be focused to a target volume of variable penetration depth. In this way, the dose distribution can be closely matched to the target volume with high accuracy. In particular, the proton beam may conform to the shape and depth of a target tumor (e.g., tumor) in order to avoid irradiating healthy body tissue while delivering a lower systemic radiation dose. Thus, proton therapy may allow for a stepwise increase in dose compared to conventional external beam therapy, which may be particularly beneficial for certain treatments (e.g. ocular tumors or skull base and paravertebral tumors). Proton therapy can also achieve high-precision treatment plans with reduced side effects, for example for pediatric treatment or prostate cancer treatment. To ensure complete illumination of the target mass, multiple beams are typically applied that reach the embedded mass from several different directions. The point at which the multiple beams intersect, whether the multiple beams are emitted sequentially or simultaneously, is referred to as the "isocenter (isocenter)". In order to maximize bioavailability, the isocenter must coincide exactly with the target tumor. Irradiation treatment of the target tissue is performed in a well-defined procedure. In a first stage, target tissue is imaged and a treatment plan is established. The treatment plan includes a series of treatment shots, each shot defining at least a dose parameter (dosage), a target tissue position and orientation, and an irradiation angle for each irradiation dose. A placement marker or fiducial marker is defined for the patient for guiding patient positioning for treatment. In a subsequent stage, a plurality of treatment sessions (TREATMENT SESSIONS) are performed over a period of time in response to the treatment plan being formulated. In each treatment session care must be taken to ensure proper positioning of the patient relative to the fiducial markers in order to ensure that the applied irradiation dose is properly targeted and to avoid injuring organs in the vicinity of the target tissue. The localization of the patient in terms of markers may be performed based on a visualization of the patient relative to the defined markers. In particular, prior to a treatment session, the patient is displaced to an initial setup position by positioning a platform supporting the patient such that the fiducial markers converge with the isocenter of the treatment room. Treatment planning is then performed with respect to the localization position, resulting in the target tissue being positioned at the treatment room isocenter. Repositioning the patient relative to the repositioning position according to the treatment plan requirements. In particular, the target tissue continues to be repositioned relative to the beam nozzle of the irradiation beam delivery apparatus, which may have a fixed position or may be capable of limited movement, for example by means of a gantry. Treatment room isocenter may be specified by visual indication (e.g., multiple laser beams). Image Guided Radiation Therapy (IGRT) techniques may be used to verify the patient's positioning. A stabilization mechanism may be applied to ensure that patient positioning is maintained relative to the isocenter during t