JP-2026074556-A - Cancer treatment system

Abstract

[Problem] To provide a cancer treatment system capable of accurately measuring the temperature of a part of a living organism to which an alternating magnetic field is applied. [Solution] This cancer treatment system is a cancer treatment system for treating cancer in a living organism, and comprises: a magnetic field generating unit that generates an alternating magnetic field to be applied to the cancerous area of the living organism through the epidermis of the living organism; a temperature measuring unit that measures the temperature rise of the tissue of the living organism caused by the application of the alternating magnetic field generated by the magnetic field generating unit using an optical fiber on the epidermis; and a support unit that supports the optical fiber, wherein the support unit has a pressing mechanism that presses the tip of the optical fiber against the epidermis in the direction of extension of the optical fiber; and a rotation mechanism that adjusts the inclination of the optical fiber with respect to the epidermis. [Selection Diagram] Figure 6A

Inventors

• 小菅 勝弘
• 山口 高司
• 岸 和人
• 平松 正己
• 山口 俊隆
• 大島 淳
• 武捨 章洋
• 道島 隆
• 梅村 将就

Assignees

• 公立大学法人横浜市立大学

Dates

Publication Date

20260507

Application Date

20241021

Claims (10)

1. A cancer treatment system that treats cancer in living organisms, A magnetic field generating unit that generates an alternating magnetic field to be applied to the cancerous area of the living body via the epidermis of the living body, A temperature measuring unit measures the temperature rise of the biological tissue caused by the application of the alternating magnetic field generated by the magnetic field generating unit to the epidermis using an optical fiber, It has a support portion that supports the optical fiber, The aforementioned support portion is A pressing mechanism for pressing the tip of the optical fiber against the skin in the direction of extension of the optical fiber, A cancer treatment system comprising a rotation mechanism for adjusting the inclination of the optical fiber with respect to the epidermis.
2. The cancer treatment system according to claim 1, wherein when the alternating magnetic field is applied to the cancerous area of the living organism, the optical fiber is tilted with respect to the normal of the portion of the epidermis in which the tip is pressed against the epidermis by the pressing mechanism.
3. A cancer treatment system according to claim 1 or 2, comprising a configuration member positioned on the portion of the optical fiber other than the tip, which is pressed against the epidermis to expose the tip of the optical fiber.
4. The cancer treatment system according to claim 3, wherein the arrangement member is placed between the optical fiber and the heat source.
5. The cancer treatment system according to claim 3, wherein the arrangement member has higher thermal insulation efficiency compared to the optical fiber.
6. The cancer treatment system according to claim 1 or 2, wherein the support portion has a movement mechanism for moving the optical fiber in a direction along the axial direction of the magnetic field generating portion.
7. A cooling member placed on the living body, The cancer treatment system according to claim 1 or claim 2, further comprising a holding member for holding the cooling member.
8. The holding member holds the cooling member when the holding member is wrapped around a part of the living body. The cancer treatment system according to claim 7, wherein the support portion is connected to the holding member.
9. The support portion comprises a non-conductive material, as described in claim 1 or claim 2 of the cancer treatment system.
10. The cancer treatment system according to claim 9, wherein the non-conductive material is a resin material.

Description

This disclosure relates to cancer treatment systems. Various cancer treatment systems utilizing different types of therapies have been proposed over the years. For example, Patent Document 1 discloses a cancer treatment system that applies an alternating magnetic field to the cancerous tissue of a patient. In this system, the tip of the optical fiber in an optical fiber thermometer is fixed to the area to which the alternating magnetic field is applied in order to measure the temperature of that portion of the patient. In environments where an alternating magnetic field is applied, non-contact methods using infrared light detection are used in addition to optical fiber thermometers for temperature measurement. However, contact-type temperature measurement using optical fibers has a higher accuracy of approximately ±0.5°C compared to non-contact methods with an accuracy of approximately ±2°C. Therefore, in cancer treatment devices that apply an alternating magnetic field and may cause a rise in body temperature, temperature measurement using an optical fiber thermometer is preferable. This is a schematic top view showing the configuration of a cancer treatment system according to an embodiment.This diagram shows the cancer treatment system according to the embodiment, viewed from the direction in which the patient's head is located.This is a schematic side view showing the configuration of a cancer treatment system according to an embodiment.This is a schematic perspective view showing the magnetic field generating unit of a cancer treatment system according to an embodiment.This is a schematic cross-sectional perspective view of a coil included in the magnetic field generating unit of a cancer treatment system according to an embodiment.This is a schematic side view showing a first example of the configuration around the support part in the cancer treatment system according to the first embodiment.This is a schematic side view showing a second example of the configuration around the support part in the cancer treatment system according to the first embodiment.This is a diagram showing the area around the support part in the cancer treatment system according to the first embodiment, viewed from the direction in which the head of the patient animal is located.This figure shows an example of a rod-shaped cooling member.This is a schematic side view showing the configuration of the support part of the cancer treatment system according to the first embodiment.This is a schematic side view showing the placement of optical fibers when the cancerous area is the brain.This is a schematic side view showing the placement of optical fibers when the cancerous area is the nasal cavity. The following describes embodiments for implementing this disclosure with reference to the drawings. In this specification and the drawings, components having substantially the same functional configuration are denoted by the same reference numerals, and redundant explanations are omitted as appropriate. Furthermore, for ease of understanding, the scale of the parts in the drawings may differ from the actual scale. A degree of deviation is permissible in directions such as parallel, right-angled, orthogonal, horizontal, vertical, up/down, and left/right, as long as it does not impair the effects of the embodiments of this disclosure. The shape of the corners is not limited to right angles; they may be rounded in an arc shape. Parallel, right-angled, orthogonal, horizontal, and vertical directions may include approximately parallel, approximately right-angled, approximately orthogonal, approximately horizontal, and approximately vertical directions. "To arrange" is not limited to direct contact, but also includes indirect arrangement, such as arrangement via other members. In the following explanation, for clarity, we will use the XYZ Cartesian coordinate system to represent directions. In the XYZ Cartesian coordinate system, the direction in which the X-axis extends is the X direction, the direction in which the Y-axis extends is the Y direction, and the direction in which the Z-axis extends is the Z direction. The direction pointed to by the arrow indicating the X-axis is denoted as the +X direction, and the opposite direction is denoted as the -X direction. The direction pointed to by the arrow indicating the Y-axis is denoted as the +Y direction, and the opposite direction is denoted as the -Y direction. The direction pointed to by the arrow indicating the Z-axis is denoted as the +Z direction, and the opposite direction is denoted as the -Z direction. [Embodiment] <Configuration of the cancer treatment system according to the embodiment> The configuration of the cancer treatment system according to the embodiment will be described with reference to Figures 1 to 5. Figure 1 is a schematic top view showing the configuration of the cancer treatment system 10 according to the embodiment. Figure 2 is a schematic view of the cancer treatment