Radiotherapy human body positioning detection equipment

Abstract

The invention discloses radiotherapy human body positioning detection equipment, and belongs to the technical field of medical auxiliary supplies, the radiotherapy human body positioning detection equipment comprises a treatment bed and a radiotherapy machine, the two sides of the treatment bed are provided with positioning detection devices, and each positioning detection device comprises a bedrail, a laser sensor and a plurality of laser range finders; the laser sensor, the identification color code and the plurality of laser range finders are arranged on the bedrail, and the laser sensor, the plurality of laser range finders and the radiotherapy machine are all connected with the PLC; a plurality of laser range finders transmit detected distance values of a patient to the PLC, a medical worker pastes an identification color code to the part, irradiated by the laser sensor, of the patient, the laser sensor transmits a detected identification color code signal to the PLC, and then the PLC can be operated to control the radiotherapy machine to start radiotherapy on the patient. According to the radiotherapy human body positioning detection equipment provided by the invention, a body film does not need to be manufactured for a patient before radiotherapy, the positioning requirements of radiotherapy of patients with different body types are met, and the medical cost is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of medical auxiliary products and relates to a human body position detection device used for radiotherapy. Background Art

[0002] Radiotherapy is radiotherapy, which is a local treatment method for treating tumors using radiation. Due to the biological effect of radiation, it can kill the largest amount of cancer tissue, destroy cancer tissue and shrink it. As an important means of treating malignant tumors, radiotherapy can produce good results for many cancers. However, during radiotherapy, the rays will also affect the normal tissues in the treatment area, causing damage to normal cell tissues and bringing corresponding side effects. Therefore, during radiotherapy, it is necessary to accurately locate the patient's tumor position to minimize the damage of radiotherapy to normal tissues. The positioning method commonly used in radiotherapy currently uses body membranes or positioning pads for body position fixation. Taking radiotherapy body membranes as an example, a polymer low-temperature thermoplastic plate is used to make a mold before radiotherapy. The role of the mold is to fix the patient, prevent the patient from moving arbitrarily during radiotherapy, improve the accuracy of radiotherapy, and prevent radiation from damaging healthy tissues and organs. Radiotherapy body membranes are a mold customized for the patient's body shape and can only be used for the patient. When thousands of patients are undergoing radiotherapy, thousands of molds need to be made, and the price of radiotherapy molds is not cheap, which invisibly adds an economic burden to society and patients. After radiotherapy, the mold needs to be destroyed as medical waste, which is also a huge waste. During radiotherapy, the mold needs to be disinfected after each radiotherapy, which increases the workload of technicians. Summary of the invention

[0003] The problem solved by the present invention is to provide a radiotherapy human body positioning detection equipment, which does not require a mold to be made for the patient before radiotherapy, can adapt to the positioning needs of radiotherapy patients with different body shapes and different parts, reduce medical expenses, and reduce the workload of technicians.

[0004] In order to solve the above problems, the technical solution adopted by the present invention is: comprising a treatment bed and a radiotherapy machine, a position detection device is provided on both sides of the treatment bed, the position detection device comprises a bed rail, a laser sensor, an identification color mark and a plurality of laser rangefinders, the identification color mark is attached to the patient, the laser sensor and the plurality of laser rangefinders are arranged on the bed rail, and the laser sensor, the plurality of laser rangefinders and the radiotherapy machine are all connected to a PLC controller; Before radiotherapy, after the patient lies on the treatment couch in the correct positioning, multiple laser rangefinders transmit the detected distance values of the patient to the PLC controller. Within the scanning range, medical staff paste the identification color mark at the irradiated part of the patient irradiated by the laser sensor and draw a mark. The laser sensor transmits the signal detecting the identification color mark to the PLC controller, and then the PLC controller can be operated to control the radiotherapy machine to start radiotherapy on the patient; When the patient's position moves due to active or passive movement, the PLC controller receives that the laser sensor cannot detect the identification color mark, and the PLC controller controls the radiotherapy machine to stop working; When the patient returns to the correct positioning position, the PLC controller receives that the laser sensor detects the identification color mark, and then the PLC controller can be operated to control the radiotherapy machine to start continuing radiotherapy on the patient.

[0005] In the above technical solution, a more specific technical solution can also be: chutes are provided on both sides of the treatment couch, and the bottom of the bed rail can be slidably inserted into the chutes.

[0006] Furthermore: one laser sensor and three laser rangefinders are provided on the bed rail. The three laser rangefinders are respectively a first laser rangefinder, a second laser rangefinder and a third laser rangefinder. Transverse sliding holes, a first longitudinal sliding hole, a second longitudinal sliding hole and a third longitudinal sliding hole are formed in the bed rail. The laser sensor can be slidably clamped in the transverse sliding hole, the first laser rangefinder can be slidably clamped in the first longitudinal sliding hole, the second laser rangefinder can be slidably clamped in the second longitudinal sliding hole, and the third laser rangefinder can be slidably clamped in the third longitudinal sliding hole. The horizontal position of the laser sensor and the height positions of the first laser rangefinder, the second laser rangefinder and the third laser rangefinder can be adjusted, with higher operation flexibility, and it can be applicable to some patients who need to lie on their sides for radiotherapy or some patients with special body shapes.

[0007] Furthermore: multiple sensor clamping slots are formed on the lower side of the transverse sliding hole, and the laser sensor can be clamped in the sensor clamping slots. Multiple first rangefinder clamping slots are formed on one side of the first longitudinal sliding hole, and the first laser rangefinder can be clamped in the first rangefinder clamping slots. Multiple second rangefinder clamping slots are formed on one side of the second longitudinal sliding hole, and the second laser rangefinder can be clamped in the second rangefinder clamping slots. Multiple third rangefinder clamping slots are formed on one side of the third longitudinal sliding hole, and the third laser rangefinder can be clamped in the third rangefinder clamping slots.

[0008] Furthermore: the length of the bed rail is 60 cm and the height is 30 cm.

[0009] Further: The shape of the identification color mark is a circle with a diameter of 4 mm to 20 mm.

[0010] Due to the adoption of the above technical solution, the present invention has the following beneficial effects compared with the prior art: The laser sensor and multiple laser rangefinders are used to monitor the patient's positioning in real time. The PLC controller controls the radiotherapy machine to perform radiotherapy on the patient. When the patient moves, the laser sensor cannot detect the identification color mark or the values monitored by the multiple laser rangefinders change. The PLC controller immediately controls the radiotherapy machine to stop working, effectively preventing the radiotherapy machine from injuring the patient's healthy tissues and organs. There is no need for a radiotherapy body film to position the patient, nor is it necessary to spend time modeling the patient, effectively reducing the time cost and medical cost. Description of the Drawings

[0011] Figure 1 It is a schematic structural diagram of the present invention.

[0012] Figure 2 It is a schematic structural diagram of the detection device of the present invention.

[0013] Figure 3 is Figure 2 A schematic diagram of the identification color mark pasted on the patient in

[0014] In the figure: 1. Treatment bed; 1-1 chute, 2. Bed rail; 3. First longitudinal slide hole; 4. First rangefinder card slot; 5. First laser rangefinder; 6. Second longitudinal slide hole; 7. Second rangefinder card slot; 8. Second laser rangefinder; 9. Third longitudinal slide hole; 10. Third rangefinder card slot; 11. Third laser rangefinder; 12. Transverse slide hole; 13. Sensor card slot; 14. Laser sensor; 15. Radiotherapy machine; 16. Identification color mark. Detailed Embodiment

[0015] The present invention will be further described in detail below in conjunction with the attached drawing examples: Such as Figures 1 to 3The radiotherapy human body positioning detection equipment shown includes a treatment couch 1 and a radiotherapy machine 15. Positioning detection devices are provided on both sides of the treatment couch 1. The positioning detection device includes a bed rail 2, a laser sensor 14, an identification color mark 16, and three laser rangefinders. Among them, the three laser rangefinders are the first laser rangefinder 5, the second laser rangefinder 8, and the third laser rangefinder 11. Sliding grooves 1-1 are provided on both sides of the treatment couch 1. The bottom of the bed rail 2 can be slidably inserted into the sliding groove 1-1. In this example, the length of the bed rail 2 is 60 cm and the height is 30 cm. The shape of the identification color mark 16 is a circle with a diameter of 20 mm. The bed rail 2 is provided with a horizontal sliding hole 12, a first longitudinal sliding hole 3, a second longitudinal sliding hole 6, and a third longitudinal sliding hole 9. The laser sensor 14 can be slidably clamped in the horizontal sliding hole 12. The first laser rangefinder 5 can be slidably clamped in the first longitudinal sliding hole 3. The second laser rangefinder 8 can be slidably clamped in the second longitudinal sliding hole 6. The third laser rangefinder 11 can be slidably clamped in the third longitudinal sliding hole 9. A plurality of sensor card slots 13 are provided on the lower side of the horizontal sliding hole 12, and the laser sensor 14 can be clamped in the sensor card slot 13. A plurality of first rangefinder card slots 4 are provided on one side of the first longitudinal sliding hole 3, and the first laser rangefinder 5 can be clamped in the first rangefinder card slot 4. A plurality of second rangefinder card slots 7 are provided on one side of the second longitudinal sliding hole 6, and the second laser rangefinder 8 can be clamped in the second rangefinder card slot 7. A plurality of third rangefinder card slots 10 are provided on one side of the third longitudinal sliding hole 9, and the third laser rangefinder 11 can be clamped in the third rangefinder card slot 10. The laser sensor 14, the first laser rangefinder 5, the second laser rangefinder 8, the third laser rangefinder 11, and the radiotherapy machine 15 are all connected to the PLC controller.

[0016] Before radiotherapy, slide the bed rail 2 to the head position of the treatment bed 1 to facilitate the patient to lie on the treatment bed 1 from the foot of the treatment bed 1. Then slide the bed rail 2 to the vicinity of the part of the patient where radiotherapy is to be performed. After the medical staff assist the patient to lie on the treatment bed 1 in the correct position, adjust the first laser rangefinder 5, the second laser rangefinder 8, the third laser rangefinder 11 and the laser sensor 14 to aim at the patient's body. Then stick the identification color mark 16 at the part of the patient irradiated by the laser sensor 14. The operator confirms and locks the distance values detected by the first laser rangefinder 5, the second laser rangefinder 8 and the third laser rangefinder 11 for the patient. After the medical staff leave, the operator can operate the PLC controller to control the radiotherapy machine 15 to start radiotherapy for the patient. If the patient's position moves due to active or passive movement, and the distance values detected by the first laser rangefinder 5, the second laser rangefinder 8 and the third laser rangefinder 11 received by the PLC controller differ greatly from the previously locked values or the laser sensor 14 fails to detect the identification color mark 16, the PLC controller will immediately control the radiotherapy machine 15 to stop working. The medical staff then assist the patient to return to the correct position. When the distance values detected by the first laser rangefinder 5, the second laser rangefinder 8 and the third laser rangefinder 11 received by the PLC controller are within the difference range of the previously locked values and the laser sensor 14 detects the identification color mark 16, after the medical staff leave, the operator can operate the PLC controller to control the radiotherapy machine 15 to continue radiotherapy for the patient.

[0017] It should be noted that the PLC controller provided by the present invention is a common device in the prior art. It only needs to be connected through the connection relationship given in the embodiments of the present invention, and the technical solution of the present invention can be obtained by the conventional setting of the PLC controller, which does not involve any improvement in control methods and software. As for the parameter setting and usage method of the PLC controller, those skilled in the art can purchase the PLC controller and refer to the accompanying user manual to set the corresponding control, and no detailed description is given here.

Claims

1. A radiotherapy human body positioning detection device, comprising a treatment couch and a radiotherapy machine, characterized in that: Position detection devices are provided on both sides of the treatment couch. The position detection device includes a bed rail, a laser sensor, an identification color mark, and multiple laser rangefinders. The identification color mark is pasted on the patient. The laser sensor and the multiple laser rangefinders are provided on the bed rail. The laser sensor, the multiple laser rangefinders, and the radiotherapy machine are all connected to a PLC controller; Before radiotherapy, after the patient lies on the treatment couch in the correct position, the multiple laser rangefinders transmit the detected distance values of the patient to the PLC controller. Within the scanning range, the medical staff paste the identification color mark at the irradiated part of the patient irradiated by the laser sensor and draw a mark. The laser sensor transmits the signal of detecting the identification color mark to the PLC controller, and then the PLC controller can be operated to control the radiotherapy machine to start radiotherapy on the patient; When the position of the patient moves due to active or passive movement, the PLC controller receives that the laser sensor cannot detect the identification color mark, and the PLC controller controls the radiotherapy machine to stop working; When the patient returns to the correct positioning position, the PLC controller receives that the laser sensor detects the identification color mark, and then the PLC controller can be operated to control the radiotherapy machine to continue radiotherapy on the patient.

2. The radiotherapy human body positioning detection equipment according to claim 1, characterized in that: Sliding grooves are provided on both sides of the treatment couch, and the bottom of the bed rail can be slidably inserted into the sliding grooves.

3. The radiotherapy human body positioning detection equipment according to claim 2, characterized in that: One laser sensor and three laser rangefinders are provided on the bed rail. The three laser rangefinders are respectively a first laser rangefinder, a second laser rangefinder, and a third laser rangefinder. Transverse sliding holes, a first longitudinal sliding hole, a second longitudinal sliding hole, and a third longitudinal sliding hole are formed in the bed rail. The laser sensor can be slidably clamped in the transverse sliding hole. The first laser rangefinder can be slidably clamped in the first longitudinal sliding hole. The second laser rangefinder can be slidably clamped in the second longitudinal sliding hole. The third laser rangefinder can be slidably clamped in the third longitudinal sliding hole.

4. The radiotherapy human body positioning detection equipment according to claim 3, characterized in that: Multiple sensor clamping grooves are formed on the lower side of the transverse sliding hole. The laser sensor can be clamped in the sensor clamping grooves. Multiple first rangefinder clamping grooves are formed on one side of the first longitudinal sliding hole. The first laser rangefinder can be clamped in the first rangefinder clamping grooves. Multiple second rangefinder clamping grooves are formed on one side of the second longitudinal sliding hole. The second laser rangefinder can be clamped in the second rangefinder clamping grooves. Multiple third rangefinder clamping grooves are formed on one side of the third longitudinal sliding hole. The third laser rangefinder can be clamped in the third rangefinder clamping grooves.

5. The radiotherapy human body positioning detection equipment according to claim 4, characterized in that: The length of the bed rail is 60 cm and the height is 30 cm.

6. The radiotherapy human body positioning detection equipment according to claim 5, wherein: The shape of the identification color mark is a circle with a diameter of 4 mm to 20 mm.

Images