Positioning device applied to radiotherapy nuclear magnetic positioning

Abstract

The utility model belongs to the technical field of medical instruments, and discloses a positioning device applied to radiotherapy nuclear magnetic positioning, which comprises a bed body, a mattress, a positioning slide rail, a positioning slide block, a positioning rod and a positioning bed plate, nine boss-shaped through holes are formed in the edge of the bed body, a first square groove is formed in the upper surface of the bed body, three threaded holes are formed in the first square groove, and a rectangular groove is formed in the lower surface of the bed body; the mattress is detachably arranged on the bed body; three conical through holes aligned with the threaded holes are formed in the positioning slide rail; the positioning sliding block is arranged in the first square groove in a sliding mode, three sliding holes aligned with the threaded holes are formed in the positioning sliding block, and nylon bolts sequentially penetrate through the conical through holes and the sliding holes to be in threaded connection with the threaded holes; and the positioning rod is arranged on the positioning bed plate and is clamped into the rectangular groove. The positioning device is convenient to install and adjust, can meet various radiotherapy or nuclear magnetic imaging positioning requirements, and improves the universality of the positioning device.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a positioning device used for nuclear magnetic positioning in radiotherapy. Background Art

[0002] With the development of computer technology, medical imaging and information technology, high-precision target positioning and precision treatment have become the mainstream direction of tumor radiotherapy. Digital medical imaging technologies such as magnetic resonance imaging simulation positioning have also been widely recognized in the radiotherapy community.

[0003] However, existing positioning devices are scarce and expensive, and the installation and adjustment of the fixing devices or MR coil brackets are cumbersome, resulting in low positioning accuracy and inability to achieve high-precision positioning of the treatment target area, thus affecting the effect of radiotherapy. Utility Model Content

[0004] The purpose of the utility model is to provide a positioning device used for nuclear magnetic resonance positioning in radiotherapy, which is easy to install and adjust, can be compatible with a variety of radiotherapy or nuclear magnetic resonance imaging positioning requirements, and improves the universality of the positioning device.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] A positioning device for nuclear magnetic field positioning in radiotherapy, comprising a bed body, a mattress, a positioning slide rail, a positioning slider, a positioning rod and a positioning bed plate; the edge of the bed body is provided with nine boss-type through holes, the boss-type through holes are used to be assembled with a human body part fixing device or an MR coil bracket, the upper surface of the bed body is provided with six first square grooves, each of the first square grooves is provided with three threaded holes, and the lower surface of the bed body is provided with a rectangular groove; the mattress is detachably arranged on the bed body; six positioning slide rails are provided, each of the positioning slide rails is provided with three tapered through holes aligned with the threaded holes; six positioning sliders are provided, each of the positioning sliders is slidably arranged in one of the first square grooves, the positioning slider is provided with three sliding holes aligned with the threaded holes, and nylon bolts pass through the tapered through holes and the sliding holes in sequence and are threadedly connected with the threaded holes; the positioning rod is provided on the positioning bed plate, and the positioning rod is snapped into the rectangular groove.

[0007] Optionally, the bed body is provided with eight first elliptical through holes and four circular through holes, and the first elliptical through holes and the circular through holes are connected to the positioning bed board via fixing buckles.

[0008] Optionally, the top of the bed adopts an arc-shaped design and is provided with a hollow square groove, the upper surface of the hollow square groove is provided with a second square groove, the second square groove is used to install headrest accessories, and the edges of the second square groove are rounded.

[0009] Optionally, a circular arc groove is formed on the shoulder of the bed, and a mounting hole is formed in the circular arc groove, and the mounting hole is used for assembly with a shoulder fixing device or a shoulder MR coil support.

[0010] Optionally, the rectangular groove is provided with a double circular through hole and a second elliptical through hole.

[0011] Optionally, a special-shaped groove is provided on the upper surface of the bed body, and a boss matching the special-shaped groove is provided on the lower surface of the mattress, and the boss is inserted into the special-shaped groove.

[0012] Optionally, the bed is made of basalt fiber coated with PMI foam.

[0013] Optionally, a human-shaped groove is provided on the upper surface of the mattress.

[0014] Optionally, the mattress is made of silicone-coated plastic.

[0015] Beneficial effects of the utility model:

[0016] The positioning device used for radiotherapy nuclear magnetic positioning provided by the utility model can cooperate with different human body part fixing devices or MR coil brackets to achieve whole-body radiotherapy and nuclear magnetic resonance imaging positioning requirements, and the installation position design is simple and flexible, and the installation position of the human body part fixing device or the MR coil bracket can be adjusted according to the patient's body shape. It is compatible with a variety of radiotherapy or nuclear magnetic resonance imaging positioning requirements, thereby improving the universality of the positioning device and the comfort of the patient during treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying creative work.

[0018] Figure 1 It is a structural schematic diagram of a positioning device for nuclear magnetic positioning in radiotherapy provided by the utility model;

[0019] Figure 2 It is a front view schematic diagram of the bed body and the mattress of the utility model when they are assembled;

[0020] Figure 3 It is a schematic diagram of the back of the bed body and the mattress when they are assembled in the utility model;

[0021] Figure 4 It is a schematic diagram of the back of the bed body and the mattress in the present invention when they are not assembled;

[0022] Figure 5 It is a partial enlarged schematic diagram of the arc-shaped groove in the utility model;

[0023] Figure 6 It is a front view schematic diagram of the bed body and the mattress of the utility model when they are not assembled;

[0024] Figure 7 It is a structural schematic diagram of the first square groove in the utility model;

[0025] Figure 8 It is a structural schematic diagram of the positioning bed board in the utility model;

[0026] Fig. 9 It is a structural schematic diagram of the positioning rod in the utility model;

[0027] Fig.10 It is a structural schematic diagram of the fixing buckle in the utility model.

[0028] In the figure:

[0029] 100, bed body; 110, boss-type through hole; 120, first square groove; 121, threaded hole; 130, rectangular groove; 131, double circular through hole; 132, second elliptical through hole; 140, first elliptical through hole; 150, circular through hole; 160, hollow square groove; 161, second square groove; 170, arc-shaped groove; 171, mounting hole; 180, special-shaped groove; 190, special-shaped through hole; 191, double circular boss through hole; 200, mattress; 210, boss; 220, human-shaped groove; 300, positioning slide rail; 310, conical through hole; 320, nylon bolt; 400, positioning slider; 410, sliding hole; 500, positioning rod; 600, positioning bed board; 610, fixing buckle; 620, connecting hole. DETAILED DESCRIPTION

[0030] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0031] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0033] In the description of this embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0034] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0035] like Figures 1 to 10As shown, the utility model provides a positioning device for nuclear magnetic positioning in radiotherapy, including a bed body 100, a mattress 200, a positioning slide rail 300, a positioning slider 400, a positioning rod 500 and a positioning bed board 600. Among them, nine boss-type through holes 110 are provided on the edge of the bed body 100, and the boss-type through holes 110 are used to assemble with the human body part fixing device or the MR coil bracket, so that the human body part fixing device or the MR coil bracket is firmly fixed and does not loosen due to the swing of the patient's body, thereby improving the positioning accuracy and realizing high-precision positioning of the treatment target area. Six first square grooves 120 are provided on the upper surface of the bed body 100, and each first square groove 120 is provided with three threaded holes 121. A rectangular groove 130 is provided on the lower surface of the bed body 100; the mattress 200 is detachably arranged on the bed body 100; six positioning slide rails 300 are provided, and each positioning slide rail 300 is provided with three conical through holes 310 aligned with the threaded holes 121; six positioning sliders 400 are provided, and each positioning slider 400 is provided with a plurality of tapered through holes 310 aligned with the threaded holes 121; The positioning slider 400 is slidably arranged in a first square groove 120. The positioning slider 400 is provided with three slide holes 410 aligned with the threaded hole 121. The nylon bolt 320 passes through the tapered through hole 310 and the slide hole 410 in sequence and is threadedly connected with the threaded hole 121. The positioning slider 400 slides in the first square groove 120 to meet the assembly of different sizes of human body part fixing devices or MR coil brackets, so that the patient maintains a comfortable position. The nylon bolt 320 locks the positioning slide rail 300 and the first square groove 120 on the upper surface of the bed body 100 so that the positioning slide rail 300 and the first square groove 120 clamp the positioning slider 400, thereby fixing the positioning slider 400. The positioning rod 500 is arranged on the positioning bed plate 600, and the positioning rod 500 is inserted into the rectangular groove 130. The handle of the positioning slider 400 adopts an arc design, and the edges are all chamfered for easy operation.

[0036] The positioning device used for radiotherapy nuclear magnetic positioning provided by the utility model can cooperate with different human body part fixing devices or MR coil brackets to achieve whole-body radiotherapy and nuclear magnetic resonance imaging positioning requirements, and the installation position design is simple and flexible, and the installation position of the human body part fixing device or the MR coil bracket can be adjusted according to the patient's body shape. It is compatible with a variety of radiotherapy or nuclear magnetic resonance imaging positioning requirements, thereby improving the universality of the positioning device and the comfort of the patient during treatment.

[0037] In some embodiments, the bed body 100 is provided with eight first elliptical through holes 140 and four circular through holes 150. The first elliptical through holes 140 and the circular through holes 150 are connected to the positioning bed plate 600 through the fixing buckle 610, thereby improving the installation stability of the bed body 100 and the positioning bed plate 600 and improving the positioning accuracy. The top of the bed body 100 adopts an arc-shaped design and is provided with a hollow square groove 160. The upper surface of the hollow square groove 160 is provided with a second square groove 161. The second square groove 161 is used to install the headrest accessories. The edge of the second square groove 161 is rounded. Different headrest accessories are embedded in the second square groove 161 to meet the positioning of the patient in lying flat, lying on the side and lying down. The shoulder of the bed body 100 is provided with an arc-shaped groove 170. The arc-shaped groove 170 is provided with a mounting hole 171. The mounting hole 171 is used to assemble with a shoulder fixing device or a shoulder MR coil bracket to meet the positioning requirements of patients with head, neck and shoulders.

[0038] In some embodiments, the rectangular groove 130 is provided with a double circular through hole 131 and a second elliptical through hole 132, which are used to connect with the positioning rod 500, thereby improving the installation stability of the bed body 100 and the positioning bed plate 600, avoiding shaking, and improving the positioning accuracy. A special-shaped through hole 190 is provided at the middle of the axis of the bed body 100, and two double circular boss through holes 191 are provided at the bottom of the axis. The special-shaped through hole 190 and the double circular boss through hole 191 are used to fix with the positioning bed plate 600, thereby realizing multi-hole matching fixation, improving the stability of the positioning device, and improving the positioning accuracy.

[0039] In some embodiments, a special-shaped groove 180 is provided on the upper surface of the bed body 100, and a boss 210 matching the special-shaped groove 180 is provided on the lower surface of the mattress 200, and the boss 210 is inserted into the special-shaped groove 180, so that a mortise and tenon structure is formed between the boss 210 and the special-shaped groove 180 for assembly. Preferably, the bed body 100 is made of basalt fiber coated with PMI foam to reduce the weight of the overall positioning device. A humanoid groove 220 is provided on the upper surface of the mattress 200 to ensure the comfort of lying during treatment of the patient. Preferably, the mattress 200 is made of silicone coated plastic. The positioning bed plate 600 is provided with a plurality of connecting holes 620 along the axial direction, and the connecting holes 620 are detachably connected to the positioning rod 500, and the edge of the positioning bed plate 600 is provided with scale values ​​corresponding to the connecting holes 620 to meet the positioning needs of patients of different heights.

[0040] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A positioning device for nuclear magnetic positioning in radiotherapy, characterized in that: It includes a bed body, a mattress, a positioning slide rail, a positioning slider, a positioning rod and a positioning bed board; nine boss-type through holes are provided on the edge of the bed body, and the boss-type through holes are used to be assembled with a human body part fixing device or an MR coil bracket; six first square grooves are provided on the upper surface of the bed body, and each of the first square grooves is provided with three threaded holes, and a rectangular groove is provided on the lower surface of the bed body; the mattress is detachably arranged on the bed body; six positioning slide rails are provided, and each of the positioning slide rails is provided with three conical through holes aligned with the threaded holes; six positioning sliders are provided, and each of the positioning sliders is slidably arranged in one of the first square grooves, and the positioning slider is provided with three sliding holes aligned with the threaded holes, and nylon bolts pass through the conical through holes and the sliding holes in sequence and are threadedly connected with the threaded holes; the positioning rod is provided on the positioning bed board, and the positioning rod is stuck in the rectangular groove.

2. The positioning device for nuclear magnetic field positioning in radiotherapy according to claim 1, characterized in that: The bed body is provided with eight first elliptical through holes and four circular through holes, and the first elliptical through holes and the circular through holes are connected to the positioning bed board through fixing buckles.

3. The positioning device for nuclear magnetic positioning in radiotherapy according to claim 1, characterized in that: The top of the bed adopts an arc-shaped design and is provided with a hollow square groove. A second square groove is provided on the upper surface of the hollow square groove. The second square groove is used to install a headrest accessory, and the edge of the second square groove is rounded.

4. The positioning device for nuclear magnetic field positioning in radiotherapy according to claim 1, characterized in that: The shoulder of the bed body is provided with an arc-shaped groove, and the arc-shaped groove is provided with a mounting hole, and the mounting hole is used for assembly with a shoulder fixing device or a shoulder MR coil support.

5. The positioning device for nuclear magnetic field positioning in radiotherapy according to claim 1, characterized in that: The rectangular groove is provided with a double circular through hole and a second elliptical through hole.

6. The positioning device for nuclear magnetic field positioning in radiotherapy according to claim 1, characterized in that: The upper surface of the bed body is provided with a special-shaped groove, and the lower surface of the mattress is provided with a boss matching the special-shaped groove, and the boss is inserted into the special-shaped groove.

7. The positioning device for nuclear magnetic field positioning in radiotherapy according to claim 6, characterized in that: The bed body is made of basalt fiber coated with PMI foam.

8. The positioning device for nuclear magnetic field positioning in radiotherapy according to claim 1, characterized in that: The upper surface of the mattress is provided with a human-shaped groove.

9. The positioning device for nuclear magnetic field positioning in radiotherapy according to claim 8, characterized in that: The mattress is made of plastic coated with silica gel.

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