CN107812326B - Medical radiotherapy positioning marking device and calibration method - Google Patents

Abstract

The invention relates to a medical radiotherapy positioning marking device and a calibration method. The radiotherapy positioning marking device includes a medical radiotherapy positioning marking sticker, a positioning mold, and radiotherapy positioning auxiliary equipment; a medical radiotherapy positioning marking sticker is fixed on the body surface; a positioning mold , There are radiotherapy marks for radiotherapy positioning; radiotherapy positioning auxiliary devices are used for fixing medical radiotherapy positioning markers. The medical radiotherapy positioning marker sticker and auxiliary device are reusable. The present invention uses the principle of gas pressure to strengthen the label, to ensure that the label can be attached to the skin surface for a longer period of time, and will not produce a large mark on the patient's body surface, reducing unnecessary label area, and making the label more durable Long-term. The invention has specific directionality so that the medical radiotherapy positioning markers will not be wrongly placed, and it is easy for operators to use more conveniently, quickly and accurately, and at the same time, the patient's life will not be greatly affected by the radiotherapy markers.

Description

A medical radiotherapy positioning marking device and calibration method

technical field

The invention relates to the technical field of medical devices, in particular to a medical radiotherapy positioning marking device and a calibration method.

Background technique

With the improvement of radiotherapy technology, tumor radiotherapy has entered the era of "precise positioning and precise marking", which puts forward higher requirements for the fixed position of radiotherapy. Ensuring the accuracy of body position is one of the important contents of quality control of radiotherapy.

However, the radiotherapy localization marking device in the prior art has the following defects and deficiencies:

First of all, most of the current radiotherapy markings are marked on the surface of the patient's body with a special color liquid prepared with medical magenta. The current radiotherapy marker positioning technology has the following disadvantages: after radiotherapy positioning, the skin of the positioning area cannot be cleaned normally; the markers are easily affected by body fluids and make the markers fade or disappear, and repeated positioning is required; the existing positioning markers will have a greater impact The patient's normal life, causing the patient's psychological inferiority complex.

Secondly, positioning is an important part of radiotherapy. There is no auxiliary positioning device specially used for marking in the prior art. During operation, positioning needs to be repeated multiple times when necessary, and the operator is easy to misplace the position, resulting in large errors.

Chinese patent document CN201310289381.5, application date 20130701, the patent name is: a special protective device for radiotherapy marking, and a special protective device for radiotherapy marking is provided. The technical solution is: using medical film and backing paper as the main materials, medical film and The upper backing paper is bonded by medical glue to form an upper gap, and the medical film and the lower backing paper are bonded by medical glue to form a lower gap. There is a wave-shaped interface on the surface of the upper backing paper, and a font-shaped interface on the surface of the lower backing paper. .

The above patent documents give full play to the good transparency and air permeability of the medical film, keep the radiotherapy marks on the body surface of radiotherapy patients accurately and clearly positioned, and effectively avoid the radiotherapy marks being blurred or completely lost due to sweat gland secretion, scrubbing and other factors . But about a patient who can normally clean the skin of the positioning area after radiotherapy positioning; reduce the number of repeated positioning; prevent the operator from misplaced and reduce errors; ensure that the label can be better and more durable attached to the skin surface; reduce the impact of radiotherapy marking on the patient However, there is no corresponding disclosure of the technical solution that affects normal life.

In summary, there is a need for patients to clean the skin of the positioning area normally after radiotherapy positioning; reduce the number of repeated positioning; prevent operators from misplaced and reduce errors; ensure that the markers can be better and more durable attached to the skin surface; A medical radiotherapy positioning device that radiotherapy marks the impact on the patient's normal life, but there is no report about this medical radiotherapy positioning device at present.

Contents of the invention

The purpose of the present invention is to address the deficiencies in the prior art, to provide a patient who can normally clean the skin of the positioning area after radiotherapy positioning; reduce the number of repeated positioning; make the operator not place it wrongly, reduce errors; ensure that the labeling can be better and more Durable attachment to the skin surface; a medical radiotherapy positioning device that reduces the impact of radiotherapy markers on the patient's normal life.

Another object of the present invention is to provide a calibration method for a medical radiotherapy positioning marking device.

For realizing above-mentioned object, the technical scheme that the present invention takes is:

A medical radiotherapy positioning marking device, the radiotherapy positioning marking device includes a medical radiotherapy positioning marking sticker, a positioning mold, and radiotherapy positioning auxiliary equipment;

The radiotherapy positioning marker sticker includes a top convex body and a bottom fitting body; the top convex body is fixed on the upper surface of the bottom fitting body; the lower surface of the bottom fitting body is provided with an adsorption port; the side of the bottom fitting body is provided with There is an interface, and the interface communicates with the adsorption port;

The positioning mold includes a positioning mold main body and a positioning mold side cover; the positioning mold main body is provided with four notches for combining with medical radiotherapy positioning marker stickers, and the angle of one of the notches is different from the angle of the remaining three notches. different;

The radiotherapy positioning auxiliary device is provided with a positioning auxiliary device body; the positioning auxiliary device body is provided with positioning protrusions, and there are four positioning protrusions, and the end angle of one positioning protrusion is different from that of the remaining three positioning protrusions. The angles are different.

As a preferred technical solution, the suction opening is located at the center of the lower surface of the bottom fitting body.

As a preferred technical solution, the suction port includes an outer ring and an inner ring; an adhesive pad and a waterproof pad are provided on the outer ring, and the waterproof pad is arranged outside the adhesive pad; the inner ring It is a chamfered structure.

As a preferred technical solution, the interface includes an inner ring and an outer ring; the inner ring is chamfered.

As a preferred technical solution, the fitting surface of the bottom fitting body has an oval structure.

As a preferred technical solution, the auxiliary equipment body includes a casing, a connecting pipe, a negative pressure mechanism, and a control button; the connecting pipe is matched with the interface of the bottom fitting body; the negative pressure mechanism is arranged in the casing ; The control button is arranged on one side of the housing.

As a preferred technical solution, the top convex body is triangular in shape, and the surface area of the top convex body is smaller than that of the bottom fitting body.

For realizing above-mentioned second object, the technical scheme that the present invention adopts is:

A calibration method for a medical radiotherapy positioning marking device, the method comprising the following steps:

Initial positioning: Four medical radiotherapy positioning markers and radiotherapy positioning auxiliary equipment are combined through the interface, the combination is placed on the surface of the patient's desired radiotherapy area, and the control button of the radiotherapy positioning auxiliary equipment is pressed to pump air through the mechanical principle. The medical radiotherapy positioning markers are fixed and adsorbed on the surface of the patient; the radiotherapy positioning auxiliary equipment is removed, the positioning mold is combined with the four medical radiotherapy positioning markers on the patient's body surface, and the radiotherapy logo is marked on the positioning mold;

Reset: After scanning by the simulator, confirm the error, change the sign of radiotherapy on the positioning mold through the size of the round hole on the positioning mold, and confirm the reset result by scanning the simulator again;

When one of the four medical radiotherapy positioning markers is missing: the missing medical radiotherapy positioning marker can be fixed directly through the radiotherapy positioning auxiliary equipment;

When the missing number of four medical radiotherapy positioning markers is greater than 1: repositioning is required;

When the positioning mold cannot be combined with the four medical radiotherapy positioning markers on the surface of the patient, it needs to be repositioned.

The present invention has the advantage that:

1. A medical radiotherapy positioning marking device of the present invention, the patient can normally clean the skin of the positioning area after radiotherapy positioning; reduce the number of repeated positioning; make the operator not place it wrongly, reduce errors; ensure that the marking sticker can be better and more durable. With the skin surface; it has a specific direction so that the medical radiotherapy positioning marker will not be placed incorrectly, and it is easy for the operator to use it more conveniently, quickly and accurately. At the same time, the patient's life will not be greatly affected by the radiotherapy marking.

2. Medical radiotherapy positioning markers are attached using gas pressure differences, which can ensure that the markers can adhere to the skin surface for a longer period of time, and will not produce large markings on the patient's body surface, reducing unnecessary markings Area, also makes the mark imprint to keep for a longer period of time.

3. The medical radiotherapy positioning marker is provided with a convex body at the top, which has a specific direction, so that the medical radiotherapy positioning marker will not be placed incorrectly.

4. Adhesive pads and waterproof pads are provided at the adsorption port of the medical radiotherapy positioning marker stickers, which are used to prevent sweat and liquid from entering the inside through the outside and causing the medical radiotherapy positioning marker stickers to fall off.

5. The inner ring of the suction port is chamfered, and its function is to prevent the patient's skin from being damaged during suction.

6. There is an interface, which includes an inner ring and an outer ring, wherein the inner ring is a chamfered structure, and its function is to make the interface sealing material released by the radiotherapy positioning auxiliary equipment easy to complete the sealing; the interface is the outer ring Structural form, its function is to make the medical radiation therapy positioning marker stick and the radiation therapy positioning auxiliary equipment combined to perform air extraction.

7. There is a certain gap inside the interface for absorbing the skin and allowing the skin to breathe normally. ;

8. Auxiliary equipment for positioning mold is provided, which extracts the air from the joint between the medical radiotherapy positioning marker and the skin and fixes the position of the medical radiotherapy positioning marker.

9. There is a positioning mold, and the positioning mold has a mark of radiotherapy, which is used for positioning of radiotherapy; the positioning mold includes the main body of the positioning mold and the side sleeve of the positioning mold, and the side sleeve of the positioning mold allows the positioning mold to directly contact the phantom, so that the positioning mold position is fixed.

10. There are four notches on the main body of the positioning mold for combining with medical radiotherapy positioning markers, and the angle of one of the notches is different from that of the remaining three notches; the technical effect of this design is: the structure of the positioning mold has Specific directionality and reusability, so that the operator will not place it incorrectly and reduce errors.

11. It is equipped with positioning mold auxiliary equipment. The positioning mold auxiliary equipment extracts the air where the medical radiotherapy positioning mark sticks and the skin is attached and fixes the position of the medical radiotherapy positioning mark sticking.

12. The positioning mold auxiliary equipment is equipped with the main body of the positioning mold auxiliary equipment. Its function is to use the principle of gas pressure to strengthen the marking stickers to ensure that the marking stickers can be attached to the skin surface for a longer period of time and will not produce larger marks on the patient's body surface. Imprint, reducing the unnecessary marking area, also makes the marking imprint save for a longer period of time.

13. There are positioning protrusions on the auxiliary equipment of the positioning mold. There are four positioning protrusions. The angle of the end of one positioning protrusion is different from that of the other three positioning protrusions. No misplacement, reducing errors.

Description of drawings

Accompanying drawing 1 is a structural block diagram of a medical radiotherapy positioning marking device of the present invention.

Accompanying drawing 2 is the overall structure schematic diagram of medical radiotherapy positioning marker.

Accompanying drawing 3 is the schematic diagram of the side view direction structure of the medical radiotherapy positioning marker.

Accompanying drawing 4 is the schematic diagram of the structure of the bottom direction of the medical radiotherapy positioning marker.

Accompanying drawing 5 is the schematic diagram of the combined state of the suction port and the sticky pad.

Accompanying drawing 6 is a schematic diagram of the interface structure of the medical radiotherapy positioning marker.

Accompanying drawing 7 is the top view direction schematic diagram of the medical radiotherapy positioning marker.

Accompanying drawing 8 is the structural representation of positioning mold.

Accompanying drawing 9 is the schematic top view of radiotherapy positioning auxiliary equipment.

Accompanying drawing 10 is the structure diagram of positioning device body.

Detailed ways

The specific embodiments provided by the present invention will be described in detail below in conjunction with the accompanying drawings.

The reference signs and components involved in the accompanying drawings are as follows:

1. Medical radiotherapy positioning marker sticker 11. Top convex body

12. Bottom fitting body 13. Adsorption port

131. Outer ring 132. Inner ring

133. Adhesive pad 14. Interface

141. Outer ring 142. Inner ring

2. Positioning mold 21. Main body of positioning mold

211. Gap 22. Positioning die edge sleeve

3. Radiotherapy positioning aids 31. Positioning aids body

311. Connector 32. Locating protrusion

Please refer to FIG. 1 . FIG. 1 is a structural block diagram of a medical radiotherapy positioning marking device according to the present invention. A medical radiotherapy positioning marking device, said radiotherapy positioning marking device includes a medical radiotherapy positioning marking sticker 1, a positioning mold 2, and radiotherapy positioning auxiliary equipment 3.

Please refer to FIG. 2 and FIG. 3 . FIG. 2 is a schematic diagram of the overall structure of the medical radiotherapy positioning marker 1 . FIG. 3 is a schematic view of the structure of the medical radiotherapy positioning marker 1 in a side view direction. The radiotherapy positioning marker sticker includes a top convex body 11 and a bottom fitting body 12; the upper surface of the bottom fitting body 12 fixes the top convex body 11; the lower surface of the bottom fitting body 12 is provided with an adsorption port 13; An interface 14 is provided on the side of the bottom fitting body 12 , and the interface 14 communicates with the suction port 13 .

Please refer to FIG. 4 and FIG. 5 . FIG. 4 is a schematic diagram of the structure of the medical radiotherapy positioning marker 1 in the bottom direction. FIG. 5 is a schematic diagram of the combined state of the suction port 13 and the sticking pad 133 . The suction port 13 is located in the center of the lower surface of the bottom fitting body 12; the suction port 13 includes an outer ring 131 and an inner ring 132; the outer ring 131 is provided with an adhesive pad 133 and a waterproof pad, and is waterproof The pad is arranged on the outside of the adhesive pad 133; the inner ring 132 is chamfered.

Please refer to FIG. 6 . FIG. 6 is a structural diagram of the interface 14 of the medical radiotherapy positioning marker 1 . The interface 14 includes an inner ring 142 and an outer ring 141; the inner ring 142 has a chamfered structure.

Please refer to FIG. 7 . FIG. 7 is a schematic plan view of the medical radiotherapy positioning marker 1 . The top convex body 11 is triangular in shape, and the surface area of the top convex body 11 is smaller than that of the bottom fitting body 12 .

Please refer to FIG. 8 , which is a schematic structural diagram of the positioning mold 2 . The positioning mold 2 includes a positioning mold main body 21 and a positioning mold side sleeve 22; the positioning mold main body 21 is provided with four notches 211 for combining with the medical radiotherapy positioning marker sticker 1, and the angle of one of the notches 211 is The angles of the remaining three notches 211 are different.

Please refer to FIG. 9 , which is a schematic top view of the radiation therapy positioning aid 3 . The radiotherapy positioning aid 3 is provided with a positioning aid body 31; the positioning aid body 31 is provided with a positioning protrusion 32, and there are four positioning protrusions 32, wherein the end angle of one positioning protrusion 32 is the same as The angles of the remaining three positioning protrusions 32 are different.

Please refer to FIG. 10 , which is a schematic structural view of the positioning device body. The auxiliary equipment body includes a housing, a connecting pipe 311, a negative pressure mechanism, and a control button; the connecting pipe 311 is matched with the interface 14 of the bottom fitting body 12; the negative pressure mechanism is arranged in the casing; the described The control buttons are arranged on one side of the casing.

It should be noted that the medical radiotherapy positioning marker 1 is fixed to the surface of the body when it is in use, and the medical radiotherapy positioning marker 1 is bonded by using the gas pressure difference, which can ensure better and more durable adhesion of the marker and the skin surface; the medical radiotherapy positioning marker sticker 1 includes a top convex body 11 and a bottom fitting body 12; the top convex body 11 has a specific direction so that the medical radiotherapy positioning marker sticker 1 will not be placed incorrectly; the fitting of the bottom fitting body 12 The surface is an elliptical structure, the bonding area is large, and it is not easy to fall off; the bottom fitting body 12 is provided with an adsorption port 13, and the adsorption port 13 is used for the air on the bottom fitting body 12 and the skin surface to be discharged through the adsorption port 13. An outer ring 131 and an inner ring 132 are arranged on the outer ring 131, wherein an adhesive pad 133 and a waterproof pad are arranged on the outer ring 131, and its function is to prevent sweat and liquid from entering the inside through the outside so that the medical radiotherapy positioning marker sticker 1 falls off; the inner ring 132 It is a chamfered structural form, and its function is to prevent the patient's skin from being damaged during adsorption; the side of the bottom fitting body 12 is provided with an interface 14, and the interface 14 includes an inner ring 142 and an outer ring 141, wherein the inner ring 142 is the structural form of chamfering, and its function is to make the sealing material of the interface 14 released by the radiotherapy positioning auxiliary equipment 3 can be easily completed sealing; Air extraction can be performed after the radiotherapy positioning auxiliary equipment 3 is combined. There is a certain gap inside to absorb the skin and allow the skin to breathe normally.

Described positioning mold 2 has the mark of radiotherapy, is used for the location of radiotherapy; Described positioning mold 2 comprises positioning mold main body 21 and positioning mold side cover 22, and positioning mold side cover 22 makes positioning mold 2 directly phantom contact , so that the position of the positioning mold 2 is fixed; the positioning mold main body 21 is provided with four gaps 211 for combining with the medical radiotherapy positioning marker sticker 1, and the angle of one of the gaps 211 is different from the angle of the remaining three gaps 211 Different; the technical effect of this design scheme is: to make the structure of the positioning mold 2 have a specific direction and reusability, so that the operator will not place it wrongly and reduce errors.

The positioning mold 2 auxiliary equipment extracts the air of the medical radiotherapy positioning marker sticker 1 and the skin bonding part and fixes the position of the medical radiotherapy positioning marker sticker 1; the positioning mold 2 auxiliary equipment is provided with a positioning mold 2 auxiliary equipment body, and its function Yes: use the principle of gas pressure to strengthen the label, ensure that the label can be attached to the skin surface for a longer period of time, and will not produce a large mark on the patient's body surface, reducing unnecessary label area, and making the label more durable long time. The auxiliary equipment of the positioning mold 2 is provided with positioning protrusions 32, and there are four positioning protrusions 32, and the end angle of one of the positioning protrusions 32 is different from the angles of the remaining three positioning protrusions 32. The effect is: the operator will not place it wrongly, and the error will be reduced.

A calibration method of a medical radiotherapy positioning marking device according to the present invention, the calibration method is as follows:

Initial positioning: four medical radiotherapy positioning markers 1 and radiotherapy positioning auxiliary equipment 3 are combined through the interface 14, the combination is placed on the surface of the patient's desired radiotherapy area, and the control button of the radiotherapy positioning auxiliary equipment 3 is pressed to pass the mechanical principle. Air extraction is performed so that the medical radiotherapy positioning marker sticker 1 is fixed and adsorbed on the surface of the patient. Unload the radiotherapy positioning auxiliary device 3, combine the positioning mold 2 with the four medical radiotherapy positioning marking stickers 1 on the patient's body surface, and mark the radiotherapy sign on the positioning mold 2.

Reset: After scanning by the simulator, confirm the error, change the sign of radiotherapy on the positioning mold 2 through the size of the round hole on the positioning mold 2, and confirm the reset result by scanning the simulator again.

When one of the four medical radiotherapy positioning markers 1 is missing: the missing medical radiotherapy positioning marker 1 can be directly refixed by the radiotherapy positioning auxiliary device 3 .

When the missing number of four medical radiotherapy positioning markers 1 is greater than 1: repositioning is required.

When the positioning mold 2 cannot be combined with the four medical radiotherapy positioning markers 1 on the patient's surface, it needs to be repositioned.

With the medical radiotherapy positioning marking device of the present invention, the patient can normally clean the skin of the positioning area after radiotherapy positioning; reduce the number of repeated positioning; prevent the operator from misplaced and reduce errors; ensure that the marker sticks to the skin for a longer period of time Surface; it has a specific direction so that the medical radiotherapy positioning marker sticker 1 will not be placed incorrectly, and it is easy for the operator to use it more conveniently, quickly and accurately, and at the same time, the patient's life will not be greatly affected by the radiotherapy marking; Sticker 1 is bonded by using the gas pressure difference, which can ensure that the marker sticks to the skin surface better and longer, and will not produce a large marker mark on the patient's body surface, which reduces unnecessary marker area and makes the marker The imprint is stored for a longer period of time; the medical radiotherapy positioning marker 1 is provided with a convex body 11 on the top, which has a specific direction, so that the medical radiotherapy positioning marker 1 will not be placed incorrectly; the suction port 13 of the medical radiotherapy positioning marker 1 is provided with an adhesive Pad 133 and waterproof pad, its function is to prevent sweat and liquid from entering the inside through the outside to make the medical radiotherapy positioning marker sticker 1 fall off; the inner ring 132 of the adsorption port 13 is a chamfered structure, and its function is to make the patient's skin not in the adsorption damage the skin; an interface 14 is provided, and the interface 14 includes an inner ring 142 and an outer ring 141, wherein the inner ring 142 is a chamfered structural form, and its function is to enable the sealing material of the interface 14 released by the radiotherapy positioning auxiliary device 3 to be able to Sealing is easily completed; the interface 14 is in the form of an outer ring 141, and its function is to allow the medical radiotherapy positioning marker 1 to be combined with the radiotherapy positioning auxiliary device 3 to perform air extraction. There is a certain gap inside for absorbing the skin and allowing the skin to breathe normally; there is a positioning mold 2 auxiliary equipment, which extracts the air from the position where the medical radiotherapy positioning mark sticker 1 is attached to the skin and fixes the medical radiotherapy positioning mark Paste 1 position; be provided with positioning mold 2, and positioning mold 2 has the mark of radiotherapy, is used for the location of radiotherapy; contact with the phantom, so that the position of the positioning mold 2 is fixed; the positioning mold main body 21 is provided with four gaps 211 for combining with the medical radiotherapy positioning marker sticker 1, and the angle of one of the gaps 211 is different from that of the remaining three gaps. The angles of 211 are different; the technical effect of this design is: to make the structure of the positioning die 2 have specific directionality and reusability, so that the operator will not place it wrongly and reduce errors; The equipment extracts the air from the bonding part of the medical radiotherapy positioning marker 1 and the skin and fixes the position of the medical radiotherapy positioning marker 1; the auxiliary equipment of the positioning mold 2 is equipped with the main body of the auxiliary equipment of the positioning mold 2, and its function is to use the principle of gas pressure to strengthen the marker. , to ensure that the labeling sticks to the skin surface better and more permanently, and will not produce a large marking mark on the patient's body surface, reducing unnecessary marking area, and making the marking mark last for a longer time; on the positioning mold 2 auxiliary equipment There are four positioning protrusions 32, and the angle of the end of one positioning protrusion 32 is different from that of the other three positioning protrusions 32. The technical effect of this design is: the operator will not make mistakes. placed to reduce errors.

The above is only a preferred embodiment of the present invention, it should be pointed out that for those of ordinary skill in the art, without departing from the method of the present invention, some improvements and supplements can also be made, and these improvements and supplements should also be considered Be the protection scope of the present invention.

Claims (5)

1. A medical radiotherapy positioning marking device, characterized in that, the radiotherapy positioning marking device comprises a medical radiotherapy positioning marking sticker, a positioning mold, and radiotherapy positioning auxiliary equipment; The radiotherapy positioning marker sticker includes a top convex body and a bottom fitting body; the top convex body is fixed on the upper surface of the bottom fitting body; the lower surface of the bottom fitting body is provided with an adsorption port; the side of the bottom fitting body is provided with There is an interface, and the interface communicates with the adsorption port; The positioning mold includes a positioning mold main body and a positioning mold side cover; the positioning mold main body is provided with four notches for combining with medical radiotherapy positioning marker stickers, and the angle of one of the notches is different from the angle of the remaining three notches. different; The radiotherapy positioning auxiliary device is provided with a positioning auxiliary device body; the positioning auxiliary device body is provided with positioning protrusions, and there are four positioning protrusions, and the end angle of one positioning protrusion is different from that of the remaining three positioning protrusions. The end angles are different, the fitting surface of the bottom fitting body is an oval structure, and the auxiliary equipment body includes a housing, a connecting pipe, a negative pressure mechanism, and a control button; the connecting pipe matches the interface of the bottom fitting body The negative pressure mechanism is arranged in the casing; the control button is arranged on one side of the casing, the top convex body is triangular in shape, and the surface area of the top convex body is smaller than that of the bottom fitting body. 2 . The medical radiotherapy positioning marking device according to claim 1 , wherein the suction opening is located at the center of the lower surface of the bottom fitting body. 3 . 3. The medical radiotherapy positioning marking device according to claim 1 or 2, wherein the suction port includes an outer ring and an inner ring; the outer ring is provided with an adhesive pad and a waterproof pad, and is waterproof The pad is arranged on the outside of the adhesive pad; the inner ring is chamfered. 4 . The medical radiotherapy positioning marking device according to claim 1 , wherein the interface includes an inner ring and an outer ring; the inner ring is in the form of a chamfered structure. 5. A calibration method utilizing the medical radiotherapy positioning marking device according to any one of claims 1-4, characterized in that, the calibration method comprises the following steps: Initial positioning: Four medical radiotherapy positioning markers and radiotherapy positioning auxiliary equipment are combined through the interface, the combination is placed on the surface of the patient's desired radiotherapy area, and the control button of the radiotherapy positioning auxiliary equipment is pressed to pump air through the mechanical principle. The medical radiotherapy positioning markers are fixed and adsorbed on the surface of the patient; the radiotherapy positioning auxiliary equipment is removed, the positioning mold is combined with the four medical radiotherapy positioning markers on the patient's body surface, and the radiotherapy logo is marked on the positioning mold; Reset: After scanning by the simulator, confirm the error, change the sign of radiotherapy on the positioning mold through the size of the round hole on the positioning mold, and confirm the reset result by scanning the simulator again; When one of the four medical radiotherapy positioning markers is missing: use the radiotherapy positioning auxiliary equipment to directly fix the missing medical radiotherapy positioning markers; When the missing number of four medical radiotherapy positioning markers is greater than 1: repositioning is required; When the positioning mold cannot be combined with the four medical radiotherapy positioning markers on the surface of the patient, it needs to be repositioned.

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