CN215427020U

CN215427020U - Positioning device for radiotherapy

Info

Publication number: CN215427020U
Application number: CN202122093821.2U
Authority: CN
Inventors: 段洁; 宋悦凯; 杨海霞
Original assignee: Xi'an Chest Hospital (xi'an Tuberculosis Thoracic Tumor Hospital)
Current assignee: Xi'an Chest Hospital (xi'an Tuberculosis Thoracic Tumor Hospital)
Priority date: 2021-09-01
Filing date: 2021-09-01
Publication date: 2022-01-07
Anticipated expiration: 2031-09-01

Abstract

The utility model provides a positioning device for radiotherapy, which comprises four support legs, a support plate, an adjusting plate and a guide assembly, wherein two support legs are fixed at the bottom of the support plate, the other two support legs are fixed at the bottom of the adjusting plate, the adjusting plate is connected with the support plate through a limiting assembly, and the positioning assembly is arranged on the adjusting plate. The positioning device for radiotherapy solves the problem of poor adaptability of the head positioning frame.

Description

Positioning device for radiotherapy

Technical Field

The utility model belongs to the technical field of radiotherapy equipment, and particularly relates to a positioning device for radiotherapy.

Background

Tumor radiotherapy is a local treatment method for treating tumors by using radioactive rays; the radioactive rays comprise alpha, beta and gamma rays generated by radioactive isotopes, and x rays, electron beams, proton beams, other particle beams and the like generated by various x-ray therapeutic machines or accelerators; about 70% of cancer patients require radiation therapy in the course of cancer treatment, and about 40% of cancers can be cured by radiation therapy; the role and position of radiotherapy in tumor treatment are increasingly prominent, and the radiotherapy has become one of the main means for treating malignant tumors; the curative effect of radiotherapy depends on the radiosensitivity, and the degree of response of different tissues and organs and various tumor tissues to change after being irradiated is different; radiosensitivity is related to the proliferative cycle and pathological grade of tumor cells, i.e., actively proliferating cells are more sensitive than non-proliferating cells, with higher cell differentiation giving lower radiosensitivity and vice versa. The tumour needs to use radiation therapy at the in-process of treatment, and the head tumour patient need fix its head through the mount when radiation therapy, and general head locating rack is not convenient for adjust fixedly to different patients' neck to and the travelling comfort is poor, influences the use, consequently, we provide an adjustable neck locating rack for tumour radiotherapy, so that solve the problem that proposes in the aforesaid.

Disclosure of Invention

In view of the above, the present invention provides a positioning device for radiotherapy to solve the problem of poor adaptability of a head positioning frame.

In order to achieve the purpose, the technical scheme of the utility model is realized as follows:

a positioning device for radiotherapy comprises four support legs, a support plate, an adjusting plate and a guide assembly, wherein two support legs are fixed at the bottom of the support plate, the other two support legs are fixed at the bottom of the adjusting plate, the adjusting plate is connected with the support plate through a limiting assembly, and the positioning assembly is arranged on the adjusting plate;

the locating component comprises a bidirectional screw rod, two locating units which are arranged relatively, each locating unit comprises a locating plate, a connecting block and an adjusting block, the locating plates are arranged above the adjusting plates, the connecting blocks are fixed at the bottoms of the locating plates, strip-shaped through holes corresponding to the connecting blocks are formed in the adjusting plates, the connecting blocks penetrate through the strip-shaped through holes corresponding to the connecting blocks and are fixedly connected with the adjusting blocks, threaded holes corresponding to the bidirectional screw rod are formed in the two adjusting blocks, the two adjusting blocks are arranged at the two ends of the bidirectional screw rod in a row and are connected with the bidirectional screw rod in a threaded mode, and the two locating plates are arranged relatively.

Furthermore, both ends of the bidirectional screw rod are connected with the adjusting plate through the first mounting block, and the bidirectional screw rod is rotatably connected with the first mounting block through a bearing.

Furthermore, one end of the bidirectional screw rod is also provided with a crank which is convenient for controlling the rotation of the bidirectional screw rod.

Furthermore, each positioning plate is fixed with a soft pad, and the two soft pads are arranged oppositely.

Furthermore, a bolster is fixed on the adjusting plate between the two positioning plates.

Furthermore, the outer side of each positioning plate is further connected with a guide assembly, each guide assembly comprises a guide rod and a second mounting block, the second mounting blocks are fixed on the supporting plate, one end of each guide rod is fixedly connected with the corresponding positioning plate, and the other end of each guide rod is connected with the corresponding mounting block in a sliding mode through a through hole reserved in the corresponding mounting block.

Further, spacing subassembly includes second slide bar, slide rail, and the slide rail has two, and two slide rails are all fixed in the bottom that the backup pad is close to regulating plate one end, and every slide rail all corresponds and is equipped with a second slide bar, and the equal one end of every second slide bar and regulating plate bottom fixed connection, the other end stretch into inside the slide rail that corresponds with it, with slide rail sliding connection.

Furthermore, the cross section of the slide rail is U-shaped, and two ends of the slide rail are fixedly connected with the supporting plate.

Further, spacing subassembly still includes first slide bar, and first slide bar has two, and two first slide bars are all fixed in the regulating plate bottom, all open the spout that corresponds with the landing leg on two landing legs that link to each other with the regulating plate, and every first slide bar all sets up in the spout that corresponds with it, with landing leg sliding connection.

Compared with the prior art, the utility model has the following beneficial effects:

(1) the positioning device for radiotherapy provided by the utility model can be used for adaptively adjusting and positioning according to the sizes of the heads of different patients through the positioning assembly, so that the requirements of different patients are met.

(2) The cushion improves patient comfort.

(3) The guide assembly can guide the two positioning plates, and the positioning plates are prevented from rotating when the bidirectional screw rod is rotated.

(4) Spacing subassembly can carry out the adaptation to the patient of different figure, and then cooperates with the fixing device who perhaps installs in the backup pad and fix other health positions.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. In the drawings:

fig. 1 is a schematic view of a positioning apparatus for radiotherapy according to an embodiment of the present invention;

FIG. 2 is a partially enlarged schematic view of a positioning apparatus for radiotherapy according to an embodiment of the present invention;

FIG. 3 is a schematic view of a positioning assembly according to an embodiment of the present invention;

fig. 4 is a schematic cross-sectional view of a positioning assembly according to an embodiment of the utility model.

Description of reference numerals:

1. a support plate; 2. a support leg; 21. a chute; 3. an adjusting plate; 31. a strip-shaped through hole; 4. a limiting component; 41. a first slide bar; 42. a second slide bar; 43. a slide rail; 5. a positioning assembly; 51. positioning a plate; 52. a soft cushion; 53. a crank; 54. a bidirectional screw; 55. an adjusting block; 56. connecting blocks; 57. a first mounting block; 6. a bolster; 7. a guide assembly; 71. a guide bar; 72. and a second mounting block.

Detailed Description

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

As shown in fig. 1 to 4, a positioning device for radiotherapy comprises four support legs 2, a support plate 1, an adjusting plate 3 and a guide assembly 7, wherein two support legs 2 are fixed at the bottom of the support plate 1, the other two support legs 2 are fixed at the bottom of the adjusting plate 3, the adjusting plate 3 is connected with the support plate 1 through a limiting assembly 4, and a positioning assembly 5 is installed on the adjusting plate 3;

positioning assembly 5 includes two-way screw 54, two relative positioning unit that set up, every positioning unit all includes locating plate 51, connecting block 56, regulating block 55, locating plate 51 sets up in regulating plate 3 top, locating plate 51 bottom is fixed with connecting block 56, it has the bar through-hole 31 that corresponds with connecting block 56 to open on regulating plate 3, connecting block 56 runs through in the bar through-hole 31 and the regulating block 55 fixed connection who corresponds with it, two regulating block 55 all open the screw hole that corresponds with two-way screw 54, two regulating block 55 divide two-way screw 54 both ends of being listed as, all with two-way screw 54 threaded connection, two locating plate 51 set up relatively. The positioning component 5 can be used for adaptively adjusting and positioning according to the sizes of the heads of different patients, so that the requirements of different patients are met.

As shown in fig. 3, both ends of the bidirectional screw 54 are connected to the adjusting plate 3 through the first mounting blocks 57, and the bidirectional screw 54 is rotatably connected to the first mounting blocks 57 through bearings.

As shown in fig. 3, a crank 53 is further installed at one end of the bidirectional screw 54 to control the rotation thereof.

As shown in fig. 2, each positioning plate 51 has a soft pad 52 fixed thereon, and the two soft pads 52 are disposed opposite to each other. The cushion 52 enhances patient comfort.

As shown in fig. 2, a bolster 6 is further fixed on the adjusting plate 3 between the two positioning plates 51. The bolster 6 improves patient comfort.

As shown in fig. 2, a guide assembly 7 is further connected to an outer side of each positioning plate 51, the guide assembly 7 includes a guide rod 71 and a second mounting block 72, the second mounting block 72 is fixed on the support plate 1, one end of the guide rod 71 is fixedly connected to the positioning plate 51, and the other end is slidably connected to the mounting block through a through hole reserved in the mounting block. The guide assembly 7 can guide the two positioning plates 51 to prevent the positioning plates 51 from rotating when the bidirectional screw 54 is rotated.

As shown in fig. 2, the limiting component 4 includes two second sliding rods 42 and two sliding rails 43, the two sliding rails 43 are fixed at the bottom of the supporting plate 1 near one end of the adjusting plate 3, each sliding rail 43 is correspondingly provided with one second sliding rod 42, one end of each second sliding rod 42 is fixedly connected with the bottom of the adjusting plate 3, and the other end of each second sliding rod 42 extends into the corresponding sliding rail 43 and is slidably connected with the sliding rail 43. By pulling the leg 2 on one side, the slide bar can slide in the slide rail 43, thereby adjusting the distance between the support plate 1 and the adjustment plate 3. So as to adapt to patients with different body shapes and further cooperate with fixing devices which are possibly arranged on the supporting plate 1 and are used for fixing other body positions.

As shown in fig. 3, the cross section of the slide rail 43 is U-shaped, and both ends are fixedly connected with the support plate 1.

As shown in fig. 3, the limiting assembly 4 further includes two first sliding rods 41, the two first sliding rods 41 are both fixed at the bottom of the adjusting plate 3, the two legs 2 connected to the adjusting plate 3 are both provided with sliding grooves 21 corresponding to the legs 2, and each first sliding rod 41 is disposed in the corresponding sliding groove 21 and slidably connected to the legs 2.

Before carrying out radiotherapy, the patient lies flat earlier on backup pad 1 and regulating plate 3, and the head is put on bolster 6, and the doctor drives two-way screw rod 54 through waveing crank 53 and rotates, and two-way screw rod 54 drives two locating plates 51 through connecting block 56 and removes in opposite directions to fix a position patient's head, convenient and fast, the suitability is high.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A positioning device for radiotherapy, characterized in that: the adjustable support comprises four support legs (2), a support plate (1), an adjusting plate (3) and a guide assembly (7), wherein two support legs (2) are fixed at the bottom of the support plate (1), the other two support legs (2) are fixed at the bottom of the adjusting plate (3), the adjusting plate (3) is connected with the support plate (1) through a limiting assembly (4), and a positioning assembly (5) is arranged on the adjusting plate (3);

locating component (5) includes two-way screw rod (54), two relative positioning unit that set up, every positioning unit all includes locating plate (51), connecting block (56), regulating block (55), locating plate (51) set up in regulating plate (3) top, locating plate (51) bottom is fixed with connecting block (56), it has bar through-hole (31) that correspond with connecting block (56) to open on regulating plate (3), connecting block (56) run through in bar through-hole (31) and regulating block (55) fixed connection who corresponds with it, two regulating block (55) all open the screw hole that corresponds with two-way screw rod (54), two regulating block (55) branch are listed as two-way screw rod (54) both ends, all with two-way screw rod (54) threaded connection, two locating plate (51) set up relatively.

2. A positioning device for radiotherapy according to claim 1, characterized in that: two ends of the bidirectional screw (54) are connected with the adjusting plate (3) through the first mounting block (57), and the bidirectional screw (54) is rotatably connected with the first mounting block (57) through a bearing.

3. A positioning device for radiotherapy according to claim 1, characterized in that: one end of the bidirectional screw (54) is also provided with a crank (53) which is convenient for controlling the rotation of the bidirectional screw.

4. A positioning device for radiotherapy according to claim 1, characterized in that: each positioning plate (51) is fixed with a soft pad (52), and the two soft pads (52) are arranged oppositely.

5. A positioning device for radiotherapy according to claim 1, characterized in that: a bolster (6) is also fixed on the adjusting plate (3) between the two positioning plates (51).

6. A positioning device for radiotherapy according to claim 1, characterized in that: every locating plate (51) outside still is connected with a direction subassembly (7), and direction subassembly (7) include guide bar (71), second installation piece (72), and second installation piece (72) are fixed on backup pad (1), guide bar (71) one end and locating plate (51) fixed connection, and the through-hole and the installation piece sliding connection that the other end was reserved through the installation piece.

7. A positioning device for radiotherapy according to claim 1, characterized in that: spacing subassembly (4) include second slide bar (42), slide rail (43) have two, two slide rails (43) are all fixed in backup pad (1) and are close to the bottom of regulating plate (3) one end, every slide rail (43) all correspond and are equipped with a second slide bar (42), every second slide bar (42) equal one end and regulating plate (3) bottom fixed connection, the other end stretches into inside slide rail (43) that correspond with it, with slide rail (43) sliding connection.

8. A positioning device for radiotherapy according to claim 7, in which: the cross section of the sliding rail (43) is U-shaped, and two ends of the sliding rail are fixedly connected with the supporting plate (1).

9. A positioning device for radiotherapy according to claim 7, in which: spacing subassembly (4) still include first slide bar (41), and first slide bar (41) have two, and two first slide bars (41) are all fixed in regulating plate (3) bottom, all open spout (21) that correspond with landing leg (2) on two landing legs (2) that link to each other with regulating plate (3), and every first slide bar (41) all set up in spout (21) that correspond with it, with landing leg (2) sliding connection.