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US 10,589,125 B2Granted
Bolus and method for producing same
AssigneeRicoh Company, Ltd.
InventorsTatsuya Niimi, Yoshihiro Norikane, Takashi Matsumura, Hiroshi Iwata, Hiroyuki Naito
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Abstract
Provided is a bolus formed of a hydrogel, wherein the hydrogel includes water, a polymer, and a mineral, and wherein the bolus is applied to a patient who receives a radiation therapy.
Claims16
A bolus, comprising:
- a hydrogel comprising:
- water,
- a synthetic polymer obtained by polymerizing at least one polymerizable monomer,
- a mineral, and
- a phosphonic acid compound,
- wherein the bolus is adapted to function as a bolus applied to a patient who receives a radiation therapy.
3 more elements
A method for producing a bolus, the method comprising forming a bolus from a liquid material comprising water, a mineral, a polymerizable monomer, a polymerization initiator, and a phosphonic acid compound.
Dependencies are inferred from the claim text.