CN214181488U

CN214181488U - Compensation mould for radiotherapy of superficial tumor on head surface

Info

Publication number: CN214181488U
Application number: CN202023015866.XU
Authority: CN
Inventors: 张才勋; 王陆州; 何俊翔; 邹雅; 付敬国; 李祥攀
Original assignee: Wuhan University WHU
Current assignee: Wuhan University WHU
Priority date: 2020-12-15
Filing date: 2020-12-15
Publication date: 2021-09-14
Anticipated expiration: 2030-12-15

Abstract

The utility model provides a shallow tumour for radiotherapy in head surface is with compensation mould, includes the curved surface body, the curved surface body be with head shape assorted cambered surface structure, the inboard head tumour target area that covers of curved surface body, the inboard middle part of curved surface body is the tumour coverage area, tumour coverage area and tumour laminating department are the spill. The utility model discloses can carry out the accurate modeling according to patient's head tumour target area structure and scalp surface profile, corresponding regulation can be done to shape and thickness, reaches best target area dose and covers the effect, just the utility model discloses have certain autohension, can laminate with the body surface skin is complete, the air gap between compensation mould and the body surface skin that has significantly reduced.

Description

Compensation mould for radiotherapy of superficial tumor on head surface

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to a head surface superficial tumour is compensation mould for radiation therapy.

Background

Radiotherapy is the purpose of treating cancer by killing cancer cells with high-energy particle beams or rays, and is one of the main means for treating tumors.

The X-ray which is commonly used at present has dose build-up effect, when a tumor area is close to the skin, the dose of the target area close to the skin is insufficient, and the tumor is relapsed. The common solution is to place an equivalent tissue compensation model on the skin surface where the target area is located, to increase the skin surface dose, thereby achieving the clinical dose requirement. Some superficial tumor growth parts of the head are positioned on the side face of the brain, and the covered compensation mold naturally sags under the action of gravity and cannot completely cover a tumor area, so that dosage shortage of a target area is caused. The 3D printing soft body compensation model is adopted to model according to the tumor region and the human body structure, and the problem of coverage of the compensation model on the tumor target region can be well solved.

Disclosure of Invention

The utility model aims at providing a compensation mould for head superficial tumor radiotherapy helps improving the irradiated dose on head superficial and scalp surface, improves the uniformity of dose distribution.

In order to achieve the above object, the utility model provides a head superficial tumour compensating mould for radiation therapy, including the curved surface body, the curved surface body be with head shape assorted cambered surface structure, the inboard head tumour target area that covers of curved surface body, the inboard middle part of curved surface body is the tumour coverage area, tumour coverage area and tumour laminating department are the spill.

In the technical scheme, the tumor joint part is a concave shape conforming to the convex shape of the tumor.

In the above technical scheme, the outer contour of the curved surface body is of a barreled structure.

In the technical scheme, the thickness of the curved surface body is uniform.

In the above technical scheme, the curved body is made of a material having an equivalent electron density close to that of human tissue.

In the technical scheme, the curved surface body is made of a flexible material, and the flexibility of the curved surface body can be adjusted.

In the above technical scheme, the curved surface body is made of a silica gel material.

The utility model has the advantages that:

1. carry out accurate modeling according to patient's head tumour target area structure and scalp surface profile, corresponding regulation can be done to shape and thickness, reaches best target area dosage and covers the effect, just the utility model discloses have certain autohension, can laminate with the body surface skin is complete, the air gap between compensation mould and the body surface skin that has significantly reduced.

2. The utility model discloses the human density of silica gel density is highly close, can make radiotherapy plan dose distribution more even.

3. The utility model discloses a compliance can be adjusted according to the patient demand, reaches best patient satisfaction.

Drawings

Fig. 1 is a schematic view of the use position of the present invention;

fig. 2 is a front view of the present invention;

fig. 3 is a plan view of the present invention.

Figure 4 is the outline barreled structure mould of the utility model sketch map.

In the figure: 1-curved surface body, 2-tumor coverage area, 3-compensation mould outline barreled structure mould.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "inside", "middle", and the like refer to the orientation or positional relationship shown in the drawings, which are only for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

As shown in fig. 1 to 3, a compensation mould for radiotherapy of superficial tumor on head surface, including curved surface body 1, including the curved surface body, curved surface body 1 is the cambered surface structure with head shape assorted, 1 inboard cover head tumor target area of curved surface body, 1 inboard middle part of curved surface body is tumor coverage area 2, tumor coverage area 2 is the spill with tumor laminating department. The utility model discloses can be according to the customization of patient's tumour target area shape and head skin profile, guarantee that whole target area can both be fully covered by curved surface body 1 at the radiotherapy in-process.

The tumor joint is a concave shape conforming to the convex shape of the tumor. Meanwhile, the bulge of the tumor is fully considered, the joint of the compensation die and the tumor can be subjected to certain concave treatment, and the complete joint of the compensation die and the bulge of the tumor is ensured. Because the hair at the tumor bulge and the periphery of the tumor bulge of the patient can be shaved off or is extremely short, the compensation die can be contacted with the scalp, and is not easy to fall off in the using process.

The outer contour of the curved surface body 1 is of a barreled structure.

The thickness of the curved surface body 1 is uniform. The thickness of the curved surface body 1 is consistent, and the density is close to that of a human body, so that the dose of the irradiated part of the patient is ensured to be uniform.

The curved surface body 1 is made of a material which has equivalent electron density similar to that of human tissues. The material used for the curved surface body 1 is selected from materials with uniform density, certain self-adhesion, high biocompatibility, safety and no toxicity. The curved body 1 is made of flexible material, and the flexibility of the curved body can be adjusted.

The preparation method of the utility model is as follows:

the method comprises the following steps: collecting model data: carrying out CT tomography on a patient to obtain a required tomography image;

step two: establishing a 3D printing model: according to the CT image, the outline of the target area and the surface outline of the scalp of the patient are sketched according to the tumor, the outline barreled structure die of the utility model is designed, and the outline barreled structure die of the compensation die is printed out through a 3D printer;

step three: preparing a solid compensation mold: and (4) pouring a silica gel material into the compensation mold outline barreled structure mold obtained in the second step, and demolding after curing to obtain the compensation mold for the breast cancer postoperative radiotherapy.

Fig. 4 is the compensation film outline barreled structure mold in the second step, and an opening is formed at the lower end of the outline barreled structure mold, so that silica gel can be conveniently poured from the opening and the mold can be conveniently removed, and demolding is facilitated.

The utility model discloses a use method does:

before the radiotherapy, will the utility model discloses a complete laminating of tumour concave zone on the tumour overlay region 2 and the tumour bellying district of patient's head, then will the utility model discloses with the intact laminating of patient's scalp, later begin to carry out the radiotherapy, after the radiotherapy finishes will the utility model discloses take off from patient's scalp surface and take up.

The embodiments of the present invention have been described with reference to the accompanying drawings, but the present invention is not limited to the above-mentioned embodiments, which are only illustrative and not restrictive, and those skilled in the art can make many forms without departing from the spirit and scope of the present invention, and these forms are all within the protection scope of the present invention.

Claims

1. A compensation mould for radiotherapy of superficial tumors on the head surface is characterized in that: the curved surface body is of a cambered surface structure matched with the shape of the head, the inner side of the curved surface body covers the target area of the head tumor, the middle of the inner side of the curved surface body is a tumor coverage area, and the tumor coverage area and the tumor fitting part are concave.

2. A compensation mold for radiation therapy of superficial tumors of the head as claimed in claim 1, wherein: the tumor joint is a concave shape conforming to the convex shape of the tumor.

3. A compensation mold for radiation therapy of superficial tumors of the head as claimed in claim 1, wherein: the outer contour of the curved surface body is of a barreled structure.

4. A compensation model for radiation therapy of superficial tumors of head as claimed in claim 1 or 3, wherein: the thickness of the curved surface body is uniform.

5. A compensation mold for radiation therapy of superficial tumors of the head as claimed in claim 1, wherein: the curved surface body is made of a material which has equivalent electron density similar to that of human tissues.

6. The compensation mold for radiation therapy of superficial tumors of the head as claimed in claim 5, wherein: the curved surface body is made of flexible materials, and the flexibility of the curved surface body can be adjusted.

7. The compensation mold for radiation therapy of superficial tumors of the head as claimed in claim 5, wherein: the curved surface body is the silica gel material.