KR101415596B1 - Combined type apparatus for medical radiation diagnosis and theraphy - Google Patents

Abstract

The composite medical radiation apparatus according to the present invention comprises a body portion erected from a floor surface to a plane where at least an isocenter isocenter is located, a C-type therapeutic radiation unit capable of emitting therapeutic radiation toward the isodensity center point And a C-arm gantry (C-arm gantry) having a C-arm curved in an arc shape opened toward the isosceles center point while being symmetrical with a plane on which the center of the isosceles center is located when the heat is radiated in a vertical direction ), A first ring-shaped gantry that supports at least one ring-shaped therapeutic radiation unit capable of emitting therapeutic radiation toward an isodose center, and which is capable of moving a ring-shaped therapeutic radiation unit along an inner circumferential surface, and a first ring- A diagnostic radiation emitting unit mounted side by-side and sharing a central axis, the diagnostic radiation emitting unit being mounted so as to face each other with the imaging region of the patient interposed therebetween, The support and along the inner circumferential surface may comprise a second ring-shaped gantry that can move the diagnostic radiation emitting unit and the diagnostic radiation detection unit.

Description

TECHNICAL FIELD [0001] The present invention relates to a combined medical radiation apparatus for diagnosis and treatment,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a medical radiation apparatus, and more particularly, to a mechanical structure of a radiation diagnostic and treatment apparatus.

Radiotherapy is a method of delaying, stopping, or even destroying the growth of malignant tissue by damaging or destroying the target tissue using high-energy waves such as x-rays and gamma rays or high-energy particles such as electron beams and proton rays. Radiation therapy is used not only for cancer, but also for benign tumors, medical diseases, and some skin diseases. In recent years, a radiotherapy method has been developed in which, instead of the neurosurgical surgical method of incising the skull, a large amount of radiation is irradiated at one time without incision surgery.

More recently, more than 60% of cancer patients have been generalized to receive radiation therapy. Radiation therapy is not only used to treat tumors as such, but also can be used in conjunction with other surgical procedures to treat localized tumors that are large and invasive and difficult to surgically remove, It can be used to make surgical operations easier or to destroy the remaining malignant cells after surgery.

Externally applied radiation therapy devices can be classified into low energy X-ray therapy devices, radioisotope treatment devices, linear accelerators, particle accelerators, etc. according to the method of generating high energy particles or radiation.

The low energy X-ray therapy apparatus was used for skin diseases or deep-root treatment by using x-ray generator, but it is rarely used at present.

The radioisotope therapy apparatus uses a gamma ray generated from a radioactive isotope such as cobalt 60 (Co-60). Although it uses a slightly stronger gamma ray than the low energy X-ray therapy device, its use is gradually diminishing.

The linear accelerator is used as a standard of radiation therapy. It is capable of outputting x-ray and electron beam, transmitting various energy, and capable of high dose rate and beam-forming.

The particle accelerator has a structure that transports neutrons and proton particles accelerated by a cyclotron accelerator through a beam transfer tube and discharges it to a desired site in a nozzle. The particle accelerator can have a Bragg's peak deeper than a linear accelerator, Dose can be minimized and energy concentrated only in the deep tumor.

On the other hand, the most famous computerized tomography (CT), which is a diagnostic device using radiation, detects the intensity of an x-ray passing through living tissues while the x-ray enters the living tissue while rotating around the living tissue, It is a technique of tomography by reconstructing a tomographic image based on data.

Generally, such a medical radiation device has a problem in that the more intentionally the position of the patient is changed or the patient unconsciously moves the body, the diagnosis accuracy or the therapeutic effect is lowered, the radiation dose absorbed into the normal tissue around the lesion becomes higher, . Accordingly, the medical radiation apparatus was developed in such a manner that the radiation emitting head and the detecting unit were simply opposed to each other in a fixed position, and the radiation emitting head and the detecting unit gradually developed to move around the patient.

Recent medical radiation apparatuses are mainly developed in the form of mounting a radiation emitting head to a gantry having L-shaped, U-shaped, C-shaped arms, or having a ring-shaped gantry.

Since the X-ray source and the X-ray detector face the biological tissue and the X-ray source and the X-ray detector rotate about the biotissue, the computer tomography apparatus can not be used for the ring gantry structure or the C-arm gantry (C- arm gantry structure is mainly used.

The ring gantry structure is, for example, a structure in which a ring-shaped gantry is mounted facing an x-ray source and an x-ray detector, and the x-ray source and the x-ray detector are rotated along a rail inside the gantry.

The C-arm gantry structure is a method in which the X-ray source and the X-ray detector are opposed to each other at the two ends of a C-shaped gantry that is open from one side to the other side, and the C-arm gantry is a pivot ) Axis so that the X-ray source and X-ray detector can rotate around the patient.

On the other hand, a ring gantry or an L-arm gantry is appropriate since the radiotherapy device should be able to access the desired site of the patient's body where the radiation source is lying.

These radiation-based diagnostic or therapeutic devices require a large amount of cost and space to install and maintain. In addition, since the diagnosis and treatment are performed at a separate place at a separate time, the position of the lesion detected by the diagnosis is difficult to exactly match at the time of treatment, and the therapeutic effect is also reduced.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a complex medical radiation apparatus capable of efficiently performing simultaneous diagnosis and treatment at a place having a more complicated form of isodose.

A composite medical radiation apparatus according to one aspect of the present invention includes:

A body portion rising from a floor to a plane where at least an isocenter is located;

Shaped therapeutic radiation unit capable of emitting a therapeutic radiation toward the isodisensic central point and is symmetric with respect to a plane on which the isosceles center point is to be positioned when the radiation is vertically released, A C-arm gantry having a C-arm curved in a shape;

A first ring-shaped gantry capable of supporting at least one ring-shaped therapeutic radiation unit capable of emitting therapeutic radiation toward the isodensity center point, and capable of moving said ring-shaped therapeutic radiation unit along an inner peripheral surface; And

A diagnostic radiation emitting unit and a diagnostic radiation detecting unit which are installed so as to share a central axis with the first ring type gantry and are arranged to face each other with the imaging region of the patient facing each other, And a second ring type gantry capable of moving the diagnostic radiation detection units.

According to one embodiment, the first ring-shaped gantry may be positioned between the C-arm gantry and the second ring-shaped gantry.

According to one embodiment, the second ring-shaped gantry may be positioned between the C-arm gantry and the first ring-shaped gantry.

According to one embodiment,

The first ring-shaped gantry can tilt the ring-shaped treatment radiation unit toward the isodensity center point.

According to one embodiment, any one of the C-arm therapeutic radiation unit or the ring-shaped therapeutic radiation unit may further comprise a multicolor collimator (MLC).

According to one embodiment, the C-arm gantry has fixing means for mechanically securing at least a part of the outer surface of the C-arm to the body, and the C- A driving track may be formed.

According to one embodiment, the C-arm therapeutic radiation unit comprises a therapeutic radiation emitting head for emitting a therapeutic radiation, the radiation therapy unit comprising: The position of the therapeutic radiation-emitting head can be varied so that the dose of the therapeutic radiation effectively acts on the target tissue at the isodose center point.

According to one embodiment, there are two C-shaped radiation therapy units, and the two C-type radiation units for treatment are provided on the body with a portion where the C-arm gantry is fixed and an axis connecting the center of the iso-dose And can be operated symmetrically with respect to each other.

According to one embodiment, the fixing means of the C-arm gantry can be coupled to the body portion so as to be rotatable about the body portion about a portion fixed to the body portion and an axis connecting the iso-quantity center point.

According to the hybrid medical radiation apparatus of the present invention, the conventional ring radiotherapy apparatus can inject limited radiation along a direction orthogonal to the body axis of the patient, A first therapeutic Radiation Therapy Source unit moving along a one ring gantry inner track and a second therapeutic radiation emitting unit moving along an inner track of a semicircular C-arm gantry are joined together in a patient's lesion tissue It is possible to inject radiation with a more flexible form of isodose.

According to the composite medical radiation apparatus of the present invention, by attaching the diagnostic radiation emitting unit and the radiation detector to the inside of the additional second ring type gantry so as to face the therapeutic radiation emitting units of the C-arm gantry and the first ring gantry , Diagnosis and treatment can be performed simultaneously.

1 is a conceptual diagram illustrating a hybrid medical radiation apparatus according to an embodiment of the present invention.
2 is a conceptual diagram illustrating a hybrid medical radiation apparatus according to another embodiment of the present invention.
3 is a conceptual diagram illustrating a hybrid medical radiation apparatus according to another embodiment of the present invention.
FIG. 4 is a conceptual view of composite medical radiation apparatuses according to embodiments of the present invention viewed from different directions. FIG.

For the embodiments of the invention disclosed herein, specific structural and functional descriptions are set forth for the purpose of describing an embodiment of the invention only, and it is to be understood that the embodiments of the invention may be practiced in various forms, The present invention should not be construed as limited to the embodiments described in Figs.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The same reference numerals are used for the same constituent elements in the drawings and redundant explanations for the same constituent elements are omitted.

1 is a conceptual diagram illustrating a hybrid medical radiation apparatus according to an embodiment of the present invention.

1, a hybrid type medical radiation apparatus 10 includes a body portion 11, a C-arm gantry 12, a C-type treatment radiation unit 13, a first ring- A second ring type gantry 16, a diagnostic radiation emitting unit 17 and a diagnostic radiation detecting unit 18, and additionally, (101), a control unit (102), and a read unit (103).

The body portion 11 provides mechanical balance and support to the composite medical radiation apparatus 10 and also includes a plurality of gantries 12,14,16 and a detection unit 18 and a control unit 102 and a reader & 103, and furthermore can provide electromagnetic energy or a delivery path of high energy particles with the outside required by the radiation units 13, 15, 17.

Specifically, the body portion 11 stands up from a floor on which the composite medical radiation apparatus 10 is placed to a plane where at least an isocenter X is to be located, and the composite medical radiation apparatus 10 To support the weight of the C-arm gantry 12 of the cantilever gantry 12 and also to reduce the risk of twisting, error or rollover as the center of gravity moves during operation, such as a counter-balancing structure Various well-known support structures can be adopted.

The isodose center point may be chosen to coincide with a specific region of the body surface where treatment or diagnosis is required, where the radiation emitted at various locations is intensively delivered. Therefore, the plane on which the isodose center point (X) is located can be said to indicate the conceptual plane determined by the position of the physical lesion of the lying patient.

The body 110 may have a base 111 on which wheels can run or move on a predetermined orbit established on the floor so that the composite medical radiation apparatus 10 can be moved to a desired location.

The body portion 11 is fixed to the fixing means 122 of the C-arm gantry 12 as a fixing means 112 provided at a position where the body portion 11 is in contact with the circular curvature center of the C- As shown in Fig.

At this time, the fixing means 122 of the C-arm gantry 12 can be rotatably fixed to the fixing means 112 of the body portion 11. [ To this end, the body part 11 may further include rotation driving means 113 such as, for example, a motor and a gear.

The C-arm gantry 12 may include a C-arm 121, fastening means 122, and a drive track 123.

Specifically, for example, when the C-arm 121 vertically stands and radiates heat, the C-arm 121 has a flat surface on which the isosceles center point X is located Is symmetrical with respect to the reference, and is open toward the isosceles center point (X).

The securing means 122 of the C-arm gantry 12 can mechanically engage at least a portion of the outer surface of the C-arm 121 with the securing means 112 of the body portion 11.

The securing means 122 of the C-arm gantry 12 can be engaged with the securing means 112 of the body portion 11 at the outer surface of the circular curvature center position of the C-

Further, the securing means 122 of the C-arm gantry 12 can be pivoted and fastened to the securing means 112 of the body part 11 so as to be rotatable.

At this time, the fixing means 122 of the C-arm gantry 12 is fixed to the body portion 11 around the axis A-A 'connecting the portion to be fixed to the body portion 11 and the center of equal- As shown in Fig. Axis (A-A ') is the virtual center axis of the patient.

In one embodiment, the drive track 123 of the C-arm gantry 12 includes a C-arm therapeutic radiation unit 13 along at least one of the inner, left, or right side of the C- And at least one rail 124 of a shape that is uniformly protruded or recessed within the range of motion.

In this case, the C-arm type therapeutic radiation unit 13 includes at least one roller 133 that engages and moves with, for example, the rails 124 of the drive track 123, and at least one And a roller driving means 134 of the roller driving means.

In another embodiment, the drive track 123 of the C-arm gantry 12 extends along at least either the inner, left, or right side of the C-arm 121 to a C- At least one cable guided in accordance with the movable range of the C-arm 121, and a cable drive means capable of moving the at least one cable in both directions along at least one of the inner side, left side, or right side of the C- .

In this case, the C-arm type therapeutic radiation unit 13 is fixed to at least one cable constituting the drive track 123, and the cable drive means winds at least one cable in either direction to the C- 121, the inner circumferential surface of the C-arm 121 can be moved in accordance with the movement of the cable.

The C-arm type therapeutic radiation unit 13 supports the therapeutic radiation emitting head 132 which emits the therapeutic radiation in the head support 131 and is movable along the drive track 123 of the C-arm gantry 12 can do.

At this time, the C-type therapeutic radiation unit 13 is configured to irradiate the therapeutic radiation emitted from the therapeutic radiation emitting head 132, as instructed by the control unit 102 by a predetermined dose plan It is possible to vary the position of the therapeutic radiation emitting head 131 at a specific position and angle on the inner surface of the C-arm 121 in which the dose can effectively act on the target tissue at the isodose center point X. [

According to the embodiment, when the drive track 123 of the C-arm gantry 12 is embodied as a rail 124, the C-arm type treatment radiation unit 13 includes a roller 133 and a roller drive means 134 ). The C-arm treatment radiation unit 13 can move to a desired position on the inner surface of the C-arm 121 by driving the roller driving means 134 to rotate the roller 133 engaged with the rail 124. [

The therapeutic radiation emitting head 132 may emit x-ray, gamma ray, high energy electrons, high energy proton or other high energy microparticles, depending on the embodiment.

According to an embodiment, the therapeutic radiation emitting head 132 may comprise any one of an x-ray generator, a radioisotope source, or a linear accelerator. In another embodiment, the therapeutic radiation emitting head 132 can receive and emit a high energy particle beam generated by accelerating in a particle accelerator installed outside the composite medical radiation apparatus 10.

In addition, according to the embodiment, the therapeutic radiation-emitting head 132 may be embodied as a multi-leaf collimator (MLC). With the use of the multi-lobe collimator, the therapeutic radiation-emitting head 132 can be internally beam-formed, thereby enabling more efficient transmission of radiation energy.

The first ring-shaped gantry 14 is vertically erected so as to be orthogonal to the patient's body center axis, and has a drive rail (not shown) on its inner circumferential surface to support the ring-shaped treatment radiation unit 15. The ring-shaped therapeutic radiation unit 15 moves along the first ring-shaped gantry 14 drive rails and can radiate the radiation toward the isodic center point X at a desired position.

The first ring-shaped gantry 14 is located close to the distal end of the C-arm 121 of the C-arm gantry 12, and can be moved parallel to the patient's body center axis if necessary.

On the other hand, the ring-shaped therapeutic radiation unit 15 can also be realized as a multi-layer collimator.

The second ring-shaped gantry 16 is disposed in parallel with the first ring-shaped gantry 14 and is disposed in parallel to the first ring-shaped gantry 14. Like the first ring-shaped gantry 14, (Not shown) to support the diagnostic radiation emitting unit 17 and the diagnostic radiation detecting unit 18.

The diagnostic radiation emitting unit 17 and the diagnostic radiation detecting unit 18 are mounted on the inner circumferential surface of the second ring-shaped gantry 16 so as to face each other with the photographing part of the patient in between.

In the preferred embodiment, the diagnostic radiation emitting unit 17 comprises an x-ray source, the diagnostic radiation detecting unit 18 can comprise an x-ray detecting sensor, and the diagnostic radiation emitting unit 17 and the diagnostic radiation detecting unit 18 And the reading unit 103 can constitute a single computerized tomography apparatus CT.

The bed unit 101 may be able to lie down on the patient and, depending on the embodiment, have wheels or tracks in contact with the floor surface.

The control unit 102 controls the driving of the fixing means 112 and the rotation driving means 113 of the body portion 11 and the driving of the first ring type gantry 14 and the second ring type gantry 16 The driving and fixing means 112 and the rotation driving means 113 of the body portion 11 are controlled in accordance with the dose planning which is input in advance or by controlling the diagnostic radiation emitting direction and intensity of the moving and diagnostic radiation emitting unit 17, The position, the angle, the direction, the output, and the beamforming of the therapeutic radiation unit 15 and the diagnostic radiation emitting unit 17, respectively.

The reading unit 103 can analyze the signal detected by the diagnostic radiation detection unit 18 and reconstruct it as a CT image.

2 is a conceptual diagram illustrating a medical radiation apparatus according to another embodiment of the present invention.

2, the hybrid medical radiation apparatus 20 is substantially similar to the composite medical radiation apparatus 10 of FIG. 1, except that two C-shaped moving members symmetrically move about a rotational axis A-A ' The radiation therapy units 23a and 23b for cancer treatment may be used.

In this case, the C-type therapy radiation units 23a and 23b are arranged in the C-arm gantry 12 in the rotation of the C-arm gantry 12 or in the movement of the C-type therapy radiation units 23a and 23b. 121 can be minimized.

In addition, the C-type therapy radiation units 23a, 23b can deliver more therapeutic radiation dose to the lesion than the C-type therapy radiation unit 13 of FIG. 1, Can be performed.

1 and 2, the composite medical radiation apparatuses 10 and 20 of the present invention first diagnose the lesion of the patient by the diagnostic radiation units 17 and 18 of the second ring type gantry 16, Treatment can be performed by the treatment radiation units 13, 15 of the C-type gantry 12 and the first ring type gantry 14.

3 is a conceptual diagram illustrating a hybrid medical radiation apparatus according to another embodiment of the present invention.

3, the composite medical radiation apparatus 30 is generally similar to the composite medical radiation apparatus 10 of FIG. 1, except that the composite medical radiotherapy apparatus 30 is provided between the C-female gantry 12 and the first ring- A two-ring gantry 36 is located.

In the case of Fig. 1, the isodic center point X by the C-female gantry 12 and the first ring gantry 14 is determined by the fact that the C-arm 121 is semicircular and the diagnostic radiation units 17,18 May not coincide with the imaging region of the diagnostic radiation units 17, 18 because they must face each other.

3, the diagnostic radiation units 17 and 18 of the second ring-type gantry 36 are opposed to each other with the isosceles center point X by the C-female gantry 12 interposed therebetween When the second ring type gantry 36 is positioned immediately before the C-type gantry 12, the imaging region by the diagnostic radiation units 17 and 18 and the radiation treatment region by the C- can do.

In this case, the first ring-shaped gantry 34 is arranged so that the emission angle of the ring-shaped therapeutic radiation unit 35 can be adjusted to the isosmatic center point X by the C-female gantry 12, (X).

Thus, the hybrid type medical radiation apparatus 30 of the present invention can be diagnosed at a time from the site where the treatment is performed to the progress of the treatment.

FIG. 4 is a conceptual view of composite medical radiation apparatuses according to embodiments of the present invention viewed from different directions. FIG.

4, the hybrid medical radiation apparatus 10 includes a C-arm type therapeutic radiation unit 13 and a ring type treatment radiation unit 13 mounted on a C-type gantry 12 and a first ring type gantry 14, respectively. It is possible to apply the radiation from different directions toward the isosceles center point X from the light source 15. According to the embodiment, the first ring-shaped gantry 14 may be equipped with a plurality of ring-shaped therapeutic radiation units 15a and 15b.

Each therapeutic radiation unit 13, 15a, 15b can emit radiation of relatively low energy, thus reducing the size, weight, manufacturing cost, etc. of each unit. Furthermore, since the energy of the radiation emitted from each of the therapeutic radiation units 13, 15a, 15b is low, the amount of radiation absorbed by the body tissue can be expected to be reduced, so that the risk of exposure can be lowered.

On the other hand, the diagnostic radiation units 17 and 18 mounted on the second gantry 16 can capture a lesion at a necessary position without regard to the position and angle of the therapeutic radiation units 13, 15a and 15b .

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, Modification is possible. Accordingly, the spirit of the present invention should be understood only in accordance with the following claims, and all of the equivalent or equivalent variations will fall within the scope of the present invention.

10 Combined medical radiation apparatus 11 Body part
12 C-arm gantry 13 C-type radiation therapy unit
14 First Ring Gantry 15 Ring Therapy Radiation Units
16 2nd Ring Gantry 17 Diagnostic Radiation Emitting Unit
18 Radiation detection unit for diagnosis 101 Bed unit
102 control unit 103 reading unit

Claims (9)

A body portion rising from a floor to a plane where at least an isocenter is located;
Shaped therapeutic radiation unit capable of emitting a therapeutic radiation toward the isodisensic central point and is symmetric with respect to a plane on which the isosceles center point is to be positioned when the radiation is vertically released, A C-arm gantry having a C-arm curved in a shape;
A first ring-shaped gantry capable of supporting at least one ring-shaped therapeutic radiation unit capable of emitting therapeutic radiation toward the isodensity center point, and capable of moving said ring-shaped therapeutic radiation unit along an inner peripheral surface; And
A diagnostic radiation emitting unit and a diagnostic radiation detecting unit which are mounted so as to share a central axis with the first ring type gantry and are arranged side by side so as to face each other with the imaging region of the patient facing each other, And a second ring type gantry capable of moving the diagnostic radiation detection units,
Wherein the second ring-shaped gantry is located between the C-arm gantry and the first ring-shaped gantry,
Wherein the first ring-shaped gantry is capable of tilting the ring-shaped treatment radiation unit toward the isodensity center point. delete delete delete [2] The composite medical radiation apparatus according to claim 1, wherein any one of the C-shaped therapeutic radiation unit or the ring-shaped therapeutic radiation unit further comprises a multi-leaf collimator (MLC). [2] The C-arm gantry according to claim 1, wherein the C-arm gantry has fixing means for mechanically fixing at least a part of the outer surface of the C-arm to the body, And a drive track for moving the composite medical radiation device. 7. The C-arm type therapeutic radiation unit according to claim 6, wherein the C-arm type therapeutic radiation unit comprises: a support member for supporting the therapeutic radiation emitting head for emitting the therapeutic radiation and being emitted from the therapeutic radiation emitting head while moving along the driving track of the C- Wherein the position of the therapeutic radiation emitting head is variable so that the dose of the therapeutic radiation effectively acts on the target tissue at the isodose center point. [7] The apparatus according to claim 6, wherein the C-type radiation unit for treatment is two, and the two C-type radiation units for treatment include a part where the C-arm gantry is fixed to the body part, Are symmetrically moved relative to each other. 7. The composite medical radiation apparatus according to claim 6, wherein the fixing means of the C-arm gantry is fastened to be rotatable with respect to the body portion about an axis fixed to the body portion and an axis connecting the iso-axial center point .

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