阅读说明：本技术 激光定位方法和bsd2000深部肿瘤热疗机激光定位装置 (Laser positioning method and laser positioning device of BSD2000 deep tumor thermotherapy machine ) 是由 李麒成 靳富 罗焕丽 蒙万里 周凤英 于 2021-05-17 设计创作，主要内容包括：本发明公开了一种激光定位方法,激光定位方法应用于激光定位装置,所述激光定位装置包括深部肿瘤热疗机、治疗床、龙门吊和激光灯,治疗床的一侧设置有刻度尺,患者平躺于所述治疗床上,龙门吊设置于所述治疗床的上方,激光灯设置于龙门吊上,激光定位方法包括：打开激光灯,并使激光灯发出的激光线与所述治疗床一侧的刻度尺垂直；移动龙门吊,使激光灯发出的激光线垂直照射在体表标记；根据激光线确定体表标记映射在刻度尺上的刻度尺位置坐标；根据刻度尺位置坐标确定治疗床的移动方向和移动距离。本发明还公开了一种BSD2000深部肿瘤热疗机激光定位装置。本发明能够实现准确地确定体表标记(肚脐)位置,进而实现准确地确定患者肿瘤治疗中心的位置。(The invention discloses a laser positioning method, which is applied to a laser positioning device, wherein the laser positioning device comprises a deep tumor thermotherapy machine, a treatment bed, a gantry crane and a laser lamp, one side of the treatment bed is provided with a graduated scale, a patient lies on the treatment bed, the gantry crane is arranged above the treatment bed, the laser lamp is arranged on the gantry crane, and the laser positioning method comprises the following steps: turning on the laser lamp, and enabling a laser line emitted by the laser lamp to be vertical to the graduated scale on one side of the treatment bed; moving the gantry crane to enable laser rays emitted by the laser lamp to vertically irradiate the body surface marks; determining the position coordinates of the graduated scale with the body surface marks mapped on the graduated scale according to the laser lines; and determining the moving direction and the moving distance of the treatment bed according to the position coordinates of the scale. The invention also discloses a laser positioning device of the BSD2000 deep tumor thermotherapy machine. The invention can accurately determine the position of the body surface marker (navel), thereby accurately determining the position of the tumor treatment center of the patient.)

1. A laser positioning method is applied to a laser positioning device and is characterized in that: the laser positioning device comprises a deep tumor thermotherapy machine, a treatment bed, a gantry crane and a laser lamp, wherein a graduated scale is arranged on one side of the treatment bed, a patient lies on the treatment bed, the gantry crane is arranged above the treatment bed, the laser lamp is arranged on the gantry crane, and the laser positioning method comprises the following steps:

turning on the laser lamp, and enabling a laser line emitted by the laser lamp to be vertical to the graduated scale on one side of the treatment bed;

moving the gantry crane to enable the laser ray emitted by the laser lamp to vertically irradiate the body surface mark;

determining the position coordinates of the graduated scale on which the body surface marks are mapped according to the laser lines;

and determining the moving direction and the moving distance of the treatment bed according to the position coordinates of the graduated scale.

2. The laser positioning method of claim 1, wherein: the step of determining the scale position coordinates of the body surface marks mapped on the scale according to the laser lines comprises the following steps:

laser lines emitted by the laser lamps vertically irradiate the body surface marks and the graduated scale on one side of the treatment bed;

reading the scale value of the laser line on the treatment bed;

and determining the scale value as the scale position coordinate of the body surface mark.

3. The laser positioning method of claim 1, wherein: the step of turning on the laser lamp and enabling the laser line sent by the laser lamp to be vertical to the graduated scale on one side of the treatment bed comprises the following steps:

turning on the laser lamp;

and rotating the laser lamp to enable a laser line emitted by the laser lamp to be vertical to the graduated scale on one side of the treatment bed.

4. The laser positioning method of claim 1, wherein: the step of moving the gantry crane to enable the laser lamp to vertically irradiate the body surface mark comprises the following steps:

determining the distance and the direction between the body surface mark and the laser line emitted by the laser lamp according to the laser line emitted by the laser lamp and the position of the body surface mark;

pushing the gantry crane to move towards the body surface marking direction;

and when the laser line emitted by the laser lamp vertically irradiates the body surface mark, stopping the movement of the gantry crane.

5. The laser positioning method of claim 1, wherein: the step of determining the direction and distance to move the treatment couch according to the scale position coordinates comprises:

acquiring the treatment center coordinates of the tumor treatment center relative to the body surface markers;

and determining the moving distance and the moving direction of the treatment bed according to the treatment center coordinates and the scale position coordinates.

6. The laser positioning method of claim 1, wherein: after the step of determining the direction and distance to move the treatment couch according to the scale position coordinates, the method comprises the following steps:

and pushing the treatment couch to move the movement distance of the treatment couch towards the movement direction of the treatment couch.

7. The utility model provides a BSD2000 deep tumour thermotherapy machine laser positioner which characterized in that: the laser positioning device comprises: deep tumour thermotherapy machine, treatment bed, scale, portal crane and laser lamp.

Technical Field

The invention relates to the technical field of medical instruments, in particular to a laser positioning method and a laser positioning device of a BSD2000 deep tumor thermotherapy machine.

Background

Currently, in deep tumor thermotherapy, there is a need to have an accurate spatial coordinate location for the center of tumor therapy. The central coordinate positions in the X direction and the Y direction can be found through the CT or MR image cross section, and the positions of the tumor treatment center in the front, back, left and right of the patient are determined. For the position in the Z direction, namely the position of a bed moving in and out (namely the height of a tumor treatment center on the body of a patient), a clear human body structure is adopted as a mark point, such as an abdomen, the navel of the patient is adopted as a mark, and the position above or below the navel is adopted as a parameter of the bed moving in and out to determine the bed moving distance of the tumor in the Z direction.

One side of the treatment bed is provided with scale information, the current method is to use a ruler to compare, determine the scale value of the navel corresponding to one side of the treatment bed, add and subtract (bed advancing and retreating value), and then move the bed to aim at the tumor treatment position for treatment. According to the method for comparing the navel position and the treatment bed, when a vertical angle is not formed from the navel position to one side of the treatment bed, position deviation can be caused, and the purpose of accurate treatment cannot be achieved.

Disclosure of Invention

The invention mainly aims to provide a laser positioning method and a laser positioning device of a BSD2000 deep tumor thermotherapy machine, aiming at accurately determining the position of a navel and further accurately determining the position of a tumor treatment center of a patient.

In order to achieve the above object, the present invention provides a laser positioning method, which is applied to a laser positioning device, and is characterized in that: the laser positioning device comprises a deep tumor thermotherapy machine, a treatment bed, a gantry crane and a laser lamp, wherein a graduated scale is arranged on one side of the treatment bed, a patient lies on the treatment bed, the gantry crane is arranged above the treatment bed, the laser lamp is arranged on the gantry crane, and the method comprises the following steps:

turning on the laser lamp, and enabling a laser line emitted by the laser lamp to be vertical to the graduated scale on one side of the treatment bed;

moving the gantry crane to enable the laser ray emitted by the laser lamp to vertically irradiate the body surface mark;

determining the position coordinates of the graduated scale on which the body surface marks are mapped according to the laser lines;

and determining the moving direction and the moving distance of the treatment bed according to the position coordinates of the graduated scale.

Optionally, the step of determining, according to the laser line, a scale position coordinate of the body surface mark mapped on the scale includes:

laser lines emitted by the laser lamps vertically irradiate the body surface mark center and the graduated scale on one side of the treatment bed;

reading the scale value of the laser line on the treatment bed;

and determining the scale value as the scale position coordinate of the body surface mark.

Optionally, the step of turning on the laser light and making the laser line emitted by the laser light perpendicular to the graduated scale on one side of the treatment couch includes:

turning on the laser lamp;

rotating the laser lamp to enable a laser line emitted by the laser lamp to be vertical to the graduated scale on one side of the treatment bed;

optionally, the step of moving the gantry crane to vertically irradiate the laser light on the body surface mark includes:

determining the distance and the direction between the body surface mark and the laser line emitted by the laser lamp according to the laser line emitted by the laser lamp and the position of the body surface mark;

pushing the gantry crane to move towards the body surface marking direction;

and when the laser line emitted by the laser lamp vertically irradiates the body surface mark, stopping the movement of the gantry crane.

Optionally, the step of determining the direction and distance to move the treatment couch according to the scale position coordinates comprises:

acquiring the treatment center coordinates of the tumor treatment center relative to the body surface markers;

and determining the moving distance and the moving direction of the treatment bed according to the treatment center coordinates and the scale position coordinates.

Optionally, after the step of determining the direction and distance to move the treatment couch according to the scale position coordinates, the method comprises:

and pushing the treatment couch to move the movement distance of the treatment couch towards the movement direction of the treatment couch.

In addition, to achieve the above object, the present invention also provides a BSD2000 deep tumor hyperthermia apparatus, the laser positioning apparatus comprising: deep tumour thermotherapy machine, treatment bed, scale, portal crane and laser lamp.

The invention provides a laser positioning method and a BSD2000 deep tumor thermotherapy machine device, wherein a laser lamp is turned on, and a laser line emitted by the laser lamp is vertical to a graduated scale on one side of a treatment bed; moving the gantry crane to enable the laser ray emitted by the laser lamp to vertically irradiate the body surface mark; determining the position coordinates of the graduated scale on which the body surface marks are mapped according to the laser lines; and determining the moving direction and the moving distance of the treatment bed according to the position coordinates of the graduated scale. Through the mode, the method can accurately determine the position of the body surface marker (navel), and further accurately determine the position of the tumor treatment center of the patient.

Drawings

FIG. 1 is a schematic structural diagram of a laser positioning device according to the present invention;

fig. 2 is a schematic flow chart of a laser positioning method according to a first embodiment of the present invention.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				110	Therapeutic bed	120	Gantry crane
140	Laser lamp	150	Scale ruler
				160	Body surface markers

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The main solution of the embodiment of the invention is as follows: turning on the laser lamp, and enabling a laser line emitted by the laser lamp to be vertical to the graduated scale on one side of the treatment bed; moving the gantry crane to enable the laser ray emitted by the laser lamp to vertically irradiate the body surface mark; determining the position coordinates of the graduated scale on which the body surface marks are mapped according to the laser lines; and determining the moving direction and the moving distance of the treatment bed according to the position coordinates of the graduated scale.

In the existing deep tumor thermotherapy, an accurate space coordinate positioning is needed for the center of tumor therapy. The central coordinate positions in the X direction and the Y direction can be found through the CT or MR image cross section, and the positions of the tumor treatment center in the front, back, left and right of the patient are determined. For the position in the Z direction, namely the position of a bed moving in and out (namely the height of a tumor treatment center on the body of a patient), a clear human body structure is adopted as a mark point, such as an abdomen, the navel of the patient is adopted as a mark, and the position above or below the navel is adopted as a parameter of the bed moving in and out to determine the bed moving distance of the tumor in the Z direction. One side of the treatment bed is provided with scale information, the current method is to use a ruler to compare, determine the scale value of the navel corresponding to one side of the treatment bed, add and subtract (bed advancing and retreating value), and then move the bed to aim at the tumor treatment position for treatment. According to the method for comparing the navel position and the treatment bed, when a vertical angle is not formed from the navel position to one side of the treatment bed, position deviation can be caused, and the purpose of accurate treatment cannot be achieved.

The invention aims to accurately determine the position of a body surface marker (navel) so as to accurately determine the position of a tumor treatment center of a patient.

Based on the hardware structure, the embodiment of the laser positioning method is provided.

The invention relates to a laser positioning method. FIG. 1 is a schematic structural diagram of a laser positioning device according to the present invention;

referring to fig. 2, fig. 2 is a schematic flow chart of a laser positioning method according to a first embodiment of the present invention.

In the embodiment of the present invention, the laser positioning method is applied to a laser positioning device, the laser positioning device includes a deep tumor thermotherapy machine, a treatment couch 110 and a gantry crane 120, a scale 150 is disposed on one side of the treatment couch 110, the patient lies on the treatment couch 110, the gantry crane 120 is disposed above the treatment couch 110, and the gantry crane 120 is disposed thereon, the laser positioning method includes:

step S10, turning on the laser lamp, and enabling a laser line emitted by the laser lamp to be vertical to the graduated scale on one side of the treatment bed;

in this embodiment, in order to locate the position of the patient and further locate the patient body surface mark 160 (wherein, the body surface mark 160 may be a navel), the laser lamp 140 is turned on, and the laser line emitted by the laser lamp 140 is perpendicular to the scale 1550 on one side of the treatment couch 110. Before laser positioning of the patient, the patient lies flat on the treatment couch 110.

Step S10, turning on the laser light and making the laser line emitted by the laser light perpendicular to the scale on one side of the treatment couch, may include:

step a1, turning on the laser lamp 140;

in this embodiment, the laser light 140 is turned on in order to locate the position of the patient and, in turn, the patient body surface markers 160 (wherein the body surface markers 160 may be the navel).

Step a2, rotating the laser lamp to make the laser line emitted by the laser lamp perpendicular to the graduated scale on one side of the treatment bed;

in this embodiment, after the laser lamp 140 is turned on, the laser lamp 140 is rotated to make the laser line emitted from the laser lamp 140 perpendicular to the scale 150 on the side of the treatment couch 110.

Step S20, moving the gantry crane to enable the laser line emitted by the laser lamp to vertically irradiate the body surface mark;

in this embodiment, after the laser lamp 140 is turned on to make the laser line emitted from the laser lamp 140 perpendicular to the scale 150 on the side of the treatment couch 110, the gantry crane 120 is moved to make the laser line emitted from the laser lamp 140 vertically irradiate the body surface mark 160.

Step S20, moving the gantry crane to vertically irradiate the laser light on the body surface marker, which may include:

step a1, determining the distance and direction between the body surface mark and the laser line emitted by the laser lamp according to the laser line emitted by the laser lamp and the position of the body surface mark;

in this embodiment, after the laser lamp 140 is turned on to make the laser line emitted from the laser lamp 140 perpendicular to the scale 150 on the side of the treatment couch 110, the distance and direction between the body surface mark 160 and the laser line emitted from the laser lamp 140 are determined according to the laser line emitted from the laser lamp 140 and the position of the body surface mark 160.

Step a2, pushing the gantry crane to move towards the body surface mark direction;

in this embodiment, after the distance and direction between the body surface markers and the laser line emitted by the laser lamp 140 are determined, the gantry crane 120 is pushed to move towards the body surface markers 160.

Step a3, when the laser beam emitted by the laser lamp vertically irradiates on the body surface mark, the gantry crane stops moving.

In this embodiment, in the process that the gantry crane 120 moves towards the body surface mark 160, when the laser beam emitted by the laser lamp 140 vertically irradiates the body surface mark 160, the movement of the gantry crane 120 is stopped.

Step S30, determining the scale position coordinates of the body surface marks mapped on the scale according to the laser lines;

in this embodiment, after the gantry crane 120 is moved to vertically irradiate the laser line emitted by the laser lamp 140 on the body surface mark 160, the scale position coordinate of the body surface mark 160 mapped on the scale 150 is determined according to the laser line, and the scale position coordinate is read.

Step S30, determining the scale position coordinates of the body surface mark mapped on the scale according to the laser line, which may include:

step a1, the laser line emitted by the laser lamp 140 vertically irradiates on the body surface mark and the graduated scale on one side of the treatment bed;

in this embodiment, after the gantry crane 120 is moved to vertically irradiate the laser beam emitted from the laser lamp 140 on the body surface mark 160, the laser beam emitted from the laser lamp 140 is vertically irradiated on the body surface mark 160 and the scale 150 on the side of the treatment couch 110.

A2, reading the scale value of the laser line on the treatment bed;

in this embodiment, after the laser line emitted by the laser lamp 140 vertically irradiates the body surface mark 160 and the scale 150 on one side of the treatment couch 110, the scale value of the treatment couch 110 where the laser line is located is read.

Step a3, determining the scale value as the scale position coordinate of the body surface mark.

In this embodiment, after reading the scale value of the treatment couch 110 where the laser line is located, the scale value is determined as the scale position coordinates of the body surface markers 160.

And step S40, determining the moving direction and the moving distance of the treatment bed according to the position coordinates of the graduated scale.

In the present embodiment, after the scale position coordinates are determined, the moving direction and the moving distance of the treatment couch 110 are determined according to the scale position coordinates.

Step S40 determining the direction and distance to move the treatment couch according to the scale position coordinates may include:

step d1, acquiring the treatment center coordinates of the tumor treatment center relative to the body surface markers;

in this embodiment, after the moving direction and the moving distance of the treatment couch 110 are determined, the treatment center coordinates of the tumor treatment center with respect to the body surface markers 160 are acquired.

D2, determining the moving distance and moving direction of the treatment couch according to the treatment center coordinate and the scale position coordinate;

in the present embodiment, after the treatment center coordinates of the tumor treatment center with respect to the body surface markers 160 are acquired, the movement distance and the movement direction of the treatment couch 110 are determined based on the treatment center coordinates and the scale position coordinates.

After the step d2 determining the direction and distance to move the treatment couch according to the scale position coordinates, it may include:

and e, pushing the treatment couch to move towards the moving direction of the treatment couch by the moving distance of the treatment couch.

In the present embodiment, after the moving distance and the moving direction of the treatment couch 110 are determined, the treatment couch 110 is pushed to move the moving distance of the treatment couch 110 toward the moving direction of the treatment couch.

According to the scheme, the laser lamp is turned on, and a laser line emitted by the laser lamp is perpendicular to the graduated scale on one side of the treatment bed; moving the gantry crane to enable the laser ray emitted by the laser lamp to vertically irradiate the body surface mark; determining the position coordinates of the graduated scale on which the body surface marks are mapped according to the laser lines; and determining the moving direction and the moving distance of the treatment bed according to the position coordinates of the graduated scale. Therefore, the position of the body surface marker (navel) can be accurately determined, and the position of the tumor treatment center of the patient can be accurately determined.

The invention also provides a laser positioning device of the BSD2000 deep tumor thermotherapy machine.

The laser positioning device of the invention comprises: a deep tumor thermal therapy machine, a treatment bed 110, a graduated scale 150, a gantry crane 120 and a laser lamp 140.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.

The above-mentioned serial numbers of the embodiments of the present invention are only for description and do not represent the merits of the embodiments.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.