Positioning device for prone position

Abstract

The utility model relates to the technical field of medical instruments, in particular to a prone position positioning device which comprises a base, a first positioning plate and a second positioning plate, a through hole is formed between a first connecting body and a second connecting body, the first positioning plate is movably connected with the first connecting body, and the second positioning plate is movably connected with the second connecting body. The second positioning plate is fixedly connected with the second connecting main body, a size-adjustable abdomen hollowed-out part is formed between the first positioning plate and the second positioning plate, and the abdomen hollowed-out part is communicated with the through hole. According to the utility model, the first positioning plate and the second positioning plate are connected through the base, so that the first positioning plate and the second positioning plate have integrality, and are simple and convenient to install, high in working efficiency and high in resetting precision; the first positioning plate and the second positioning plate are of a two-section sectional type structure, the size of the abdomen hollowed-out part can be adjusted by changing the relative position of the first positioning plate and the second positioning plate so as to adapt to patients of different body types, and the treatment comfort and the treatment effect of the patients can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, and more specifically, to a positioning device for prone position. Background Art

[0002] In the radiotherapy of pelvic tumors, the prone position can compress the patient's abdomen, reduce the irradiated volume and dose of normal tissues such as the small intestine and bladder, and reduce the side effects of radiotherapy. In order to adapt to people of different body types, the size of the abdominal hollowing of the existing prone position positioning device needs to be adjustable. There are mainly two adjustment methods: one is to adjust the size of the abdominal hollowing by replacing abdominal hollowing brackets of different sizes, which is very troublesome to adjust and the adjustable range is not fine enough, usually only having two adjustment gears; the other is to adopt a split structure, and adjust the distance between the upper and lower sections to adjust the size of the abdominal hollowing so as to adapt to people of different body types. Such a structure is easier to adjust and more precise, but this split structure is more cumbersome to install during use, affects work efficiency, and the reset accuracy is lower than that of the integral structure.

[0003] Chinese Patent CN204601394U discloses a special split positioning web for pelvic radiotherapy, which includes a web. The upper surface of the web is provided with an abdominal groove and a leg groove. The web includes a fixed plate and a sliding plate. The sliding plate includes an upper plate and a lower plate. The upper surface of the lower plate is provided with a track chute, and the lower surface of the upper plate is provided with a pulley, and the pulley is correspondingly matched with the track chute. The upper surface of the upper plate is provided with a head groove, an abdominal groove and a genital groove. Handles are provided on both sides of the head groove. A long hole is opened on the upper plate, and a bolt is installed in the long hole. The two side surfaces of the lower plate are provided with scales, and the upper surface of the fixed plate is provided with a leg groove. When this web is used, the positions between the grooves on the web can be adjusted according to different people to ensure accurate positioning, which is convenient for medical staff to use, improves the comfort of patients, and improves the treatment effect. Although the above scheme combines the advantages of the integral structure and the split structure, the above scheme adjusts the distance between the abdominal groove and the leg groove to be applicable to people of different body types, and cannot adjust the size of the abdominal hollowing. People of different body types lie prone on the web with the same hollowing size, which affects the treatment comfort and treatment effect of patients. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a positioning device for prone position, which combines the advantages of the integral structure and the split structure, and the size of the abdominal hollowing can be adjusted to adapt to people of different body types.

[0005] To solve the above technical problems, the technical scheme adopted by the utility model is as follows:

[0006] A positioning device for the prone position includes a base, a first positioning plate, and a second positioning plate. The base includes a first connecting body and a second connecting body arranged front and back. There is a through hole between the first connecting body and the second connecting body. The first positioning plate is movably connected to the first connecting body, and the second positioning plate is fixedly connected to the second connecting body. An abdominal hollow with adjustable size is formed between the first positioning plate and the second positioning plate, and the abdominal hollow is communicated with the through hole.

[0007] For the positioning device for the prone position of the present utility model, the first positioning plate and the second positioning plate are connected through the base, so that the first positioning plate and the second positioning plate have integrity, are easy to install, have high working efficiency, and high reset accuracy; the first positioning plate and the second positioning plate are of a two-segment segmented structure, and the relative position change of the first positioning plate and the second positioning plate can adjust the size of the abdominal hollow to adapt to patients with different body types, and can improve the treatment comfort and treatment effect of patients.

[0008] Further, the first connecting body is provided with positioning columns, and the first positioning plate is provided with a plurality of uniformly arranged positioning hole groups, and the positioning columns and the positioning hole groups cooperate with each other. The cooperation of the positioning columns and different positioning hole groups can adjust the position of the first positioning plate, so as to adjust the size of the abdominal hollow between the first positioning plate and the second positioning plate to adapt to patients with different body types, and the adjustment is convenient.

[0009] Further, there are two groups of positioning columns, and the connection line of the two groups of positioning columns is perpendicular to the linear track of the movement of the first positioning plate; each positioning hole group includes two positioning holes that cooperate with the positioning columns. The cooperation of the two groups of positioning columns and the two groups of positioning holes realizes the position positioning of the first connecting plate, which can prevent the first positioning plate from deflecting relative to the base and ensure the structural stability between the first positioning plate and the base.

[0010] Further, the first positioning plate includes a positioning structure and a movable structure connected up and down. The movable structure is a plate-like structure, and the positioning holes are opened on the plate-like structure. Corresponding concave positions and convex positions are provided on the positioning structure according to the body type of the patient, and a cavity is left between the movable structure and the positioning structure to accommodate the part of the positioning column extending out of the positioning hole, which simplifies the production process.

[0011] Further, the first connecting body is provided with a first connecting portion, the first positioning plate is provided with a second connecting portion, the first connecting portion is provided with a plurality of uniformly arranged first connecting holes, the second connecting portion is provided with a plurality of groups of uniformly arranged second connecting holes, and the first connecting holes and the second connecting holes are connected by a first connecting piece. When the first positioning plate slides relative to the first connecting body to an appropriate position, the first connecting piece is inserted into the first connecting hole and the second connecting hole to relatively fix the first positioning plate and the first connecting body, and the operation is simple.

[0012] Further, a first sliding groove for slidably connecting with the second connecting part is formed in the first connecting part. The arrangement of the sliding connection between the second connecting part and the first sliding groove facilitates the stable linear adjustment of the first positioning plate.

[0013] Further, the second connecting body is provided with a third connecting part, the second positioning plate is provided with a fourth connecting part, the third connecting part is provided with a plurality of uniformly arranged third connecting holes, the fourth connecting part is provided with a plurality of uniformly arranged fourth connecting holes, the numbers of the third connecting holes and the fourth connecting holes are equal, and the third connecting holes and the fourth connecting holes are connected by a second connecting piece. Inserting the second connecting piece into the third connecting hole and the fourth connecting hole fixes the second positioning plate and the second connecting body together, thereby simplifying the installation process of the overall positioning device and improving the working efficiency of the device.

[0014] Further, one end of the first positioning plate close to the second positioning plate is provided with a first arc surface, the end surface of the second positioning plate close to the first positioning plate is provided with a second arc surface, and the abdominal cavity is hollowed out between the first arc surface and the second arc surface. The settings of the first arc surface and the second arc surface conform to ergonomics and can improve the comfort level of the patient when lying prone.

[0015] Further, it further includes a head positioning block, the head positioning block is rotatably connected to the first positioning plate, and the head positioning block is also movably connected to the first positioning plate. The head positioning block is rotatably connected to the first positioning plate, and the inclination angle of the head positioning block relative to the first positioning plate can be adjusted; the head positioning block is movably connected to the first positioning plate, so as to adjust the distance between the head positioning block and the abdominal cavity hollowed out, so as to adapt to the fixation of patients with different body types and the different needs of patients for the head angle.

[0016] Further, it further includes a first limiting mechanism for limiting the inclination angle of the head positioning block relative to the first positioning plate and a second limiting mechanism for limiting the distance between the head positioning block and the abdominal cavity hollowed out. The first limiting mechanism maintains the inclination angle of the head positioning block, and the second limiting mechanism maintains the relative position of the head positioning block and the abdominal cavity hollowed out, so as to stably maintain the treatment position of the patient and avoid adverse effects on the treatment effect caused by position changes during the treatment process.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The positioning device for the prone position of the present utility model connects the first positioning plate and the second positioning plate through a base, making the first positioning plate and the second positioning plate integral, with simple installation, high working efficiency, and high reset accuracy; the first positioning plate and the second positioning plate are of a two-segment segmented structure, and the relative position change of the first positioning plate and the second positioning plate can adjust the size of the abdominal hollowing to adapt to patients of different body types, and can improve the treatment comfort and treatment effect of patients. Brief Description of the Drawings

[0019] Figure 1 It is a schematic structural diagram of a state of the positioning device for the prone position;

[0020] Figure 2 It is a schematic structural diagram of another state of the positioning device for the prone position;

[0021] Figure 3 It is a schematic structural diagram of the positioning device for the prone position with the first positioning plate removed;

[0022] Figure 4 It is a schematic structural diagram of the first positioning plate;

[0023] Figure 5 It is a schematic structural diagram of the head positioning block from one perspective;

[0024] Figure 6 It is a schematic structural diagram of the head positioning block from another perspective;

[0025] Figure 7 For Figure 5 The enlarged view of the partial A in

[0026] In the drawings: 100, base; 110, first connection body; 111, positioning column; 112, first connection part; 113, first connection hole; 114, first sliding groove; 115, second sliding groove; 116, third sliding groove; 120, second connection body; 121, third connection part; 122, third connection hole; 130, through hole; 200, first positioning plate; 210, positioning hole group; 220, positioning structure; 230, movable structure; 240, second connection part; 260, first arc surface; 300, second positioning plate; 310, fourth connection part; 320, second arc surface; 400, abdominal hollowing; 500, head positioning block; 510, rotating shaft; 520, mounting block; 521, second mounting hole; 600, bottom plate; 610, fifth connection hole; 620, shaft seat; 630, mounting plate; 631, first mounting hole; 700, third connecting piece; 710, connecting rod; 720, tightening piece; 730, slider; 800, mounting piece. Detailed Description of the Embodiments

[0027] The present utility model will be further described below in conjunction with specific embodiments. Among them, the attached drawings are only for illustrative purposes, showing only schematic diagrams rather than physical diagrams, and should not be construed as a limitation to this patent; in order to better illustrate the embodiments of the present utility model, some components in the attached drawings will be omitted, enlarged or reduced, which do not represent the dimensions of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the attached drawings may be omitted.

[0028] In the attached drawings of the embodiments of the present utility model, the same or similar reference numerals correspond to the same or similar components; in the description of the present utility model, it should be understood that if there are terms such as "upper", "lower", "left", "right", etc. indicating the orientation or position relationship, they are based on the orientation or position relationship shown in the attached drawings. This is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the position relationship in the attached drawings are only for illustrative purposes and should not be construed as a limitation to this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0029] Embodiment 1

[0030] As Figures 1 to 4 shown in the first embodiment of the positioning device for the prone position of the present utility model, a positioning device for the prone position is provided, including a base 100, a first positioning plate 200, and a second positioning plate 300. The base 100 includes a first connecting body 110 and a second connecting body 120 arranged front and back. A through hole 130 is provided between the first connecting body 110 and the second connecting body 120. The first positioning plate 200 is movably connected to the first connecting body 110, and the second positioning plate 300 is fixedly connected to the second connecting body 120. A size-adjustable abdominal hollow 400 is formed between the first positioning plate 200 and the second positioning plate 300, and the abdominal hollow 400 is communicated with the through hole 130.

[0031] When this embodiment is implemented, the first positioning plate 200 and the second positioning plate 300 are connected through the base 100, so that the first positioning plate 200 and the second positioning plate 300 have integrity, with simple installation, high working efficiency, and high reset accuracy; the first positioning plate 200 and the second positioning plate 300 are two-segment split structures. By changing the relative positions of the first positioning plate 200 and the second positioning plate 300, the size of the abdominal hollow 400 can be adjusted to adapt to patients of different body types, which can improve the treatment comfort and treatment effect of patients.

[0032] In this embodiment, the first connecting body 110 is provided with positioning posts 111, and the first positioning plate 200 is provided with a plurality of uniformly arranged positioning hole groups 210. The positioning posts 111 and the positioning hole groups 210 cooperate with each other, as Figure 3 , Figure 4 shown. By matching the positioning posts 111 with different positioning hole groups 210, the position of the first positioning plate 200 can be adjusted, thereby adjusting the size of the abdominal hollow 400 between the first positioning plate 200 and the second positioning plate 300 to adapt to patients with different body types, and the adjustment is convenient. Of course, it should be noted that in this embodiment, the relative position adjustment and fixation between the first positioning plate 200 and the first connecting body 110 are achieved through the cooperation between the positioning posts 111 and the positioning hole groups 210, which is a limitation made for the sake of simple operation and does not constitute a limitation of the present utility model. Any other structure that can achieve the relative position adjustment and fixation between the first positioning plate 200 and the first connecting body 110 can be used in the present utility model. Among them, there are two groups of positioning posts 111, and the connection line of the two groups of positioning posts 111 is perpendicular to the linear trajectory of the movement of the first positioning plate 200; each positioning hole group 210 includes two positioning holes that cooperate with the positioning posts 111. The cooperation between the two groups of positioning posts 111 and the two groups of positioning holes realizes the position positioning of the first connecting plate, which can prevent the first positioning plate 200 from deflecting relative to the base 100 and ensure the structural stability between the first positioning plate 200 and the base 100.

[0033] To simplify the production process of the first positioning plate 200, the first positioning plate 200 in this embodiment includes two parts of structures, specifically including a positioning structure 220 and a movable structure 230 that are connected up and down. The movable structure 230 is a plate-like structure, and the positioning holes are opened in the plate-like structure. The fixation between the positioning structure 220 and the movable structure 230 can adopt the form of fixed connection by screw connection. The positioning structure 220 is provided with corresponding concave positions and convex positions according to the body type of the patient, and a cavity is left between the movable structure 230 and the positioning structure 220 to accommodate the part of the positioning post 111 that extends out of the positioning hole.

[0034] To lock the first positioning plate 200 and the first connection body 110 and fix the relative positions between the two, in this embodiment, a first connection portion 112 is provided on the first connection body 110, a second connection portion 240 is provided on the first positioning plate 200, a number of first connection holes 113 are uniformly arranged on the first connection portion 112, a plurality of groups of uniformly arranged second connection holes are provided on the second connection portion 240, and the first connection holes 113 and the second connection holes are connected by a first connecting member. When the first positioning plate 200 slides relative to the first connection body 110 to an appropriate position, the positioning post 111 and the positioning hole initially fix the positions of the first positioning plate 200 and the first connection body 110. The first connecting member is inserted into the first connection holes 113 and the second connection holes to lock the first positioning plate 200 and the first connection body 110, ensuring the structural stability of the first positioning plate 200 and the first connection body 110.

[0035] To achieve the fixation between the second connection body 120 and the second positioning plate 300, a third connection portion 121 is provided on the second connection body 120, a fourth connection portion 310 is provided on the second positioning plate 300, a number of uniformly arranged third connection holes 122 are provided on the third connection portion 121, a number of uniformly arranged fourth connection holes are provided on the fourth connection portion 310, the number of the third connection holes 122 and the fourth connection holes is equal, and the third connection holes 122 and the fourth connection holes are connected by a second connecting member. The second connecting member is inserted into the third connection holes 122 and the fourth connection holes to fix the second positioning plate 300 and the second connection body 120 together, thereby simplifying the installation process of the overall positioning device and improving the working efficiency of the device.

[0036] To improve the comfort level of the patient when lying prone, in this embodiment, a first arc surface 260 is provided at one end of the first positioning plate 200 close to the second positioning plate 300, a second arc surface 320 is provided on the end surface of the second positioning plate 300 close to the first positioning plate 200, and the abdominal hollow 400 is formed between the first arc surface 260 and the second arc surface 320. The abdominal hollow 400 formed by the first arc surface 260 and the second arc surface 320 is ergonomically designed, as Figure 1 、 Figure 2 shown. In this embodiment, in the front-back direction of the positioning device, the width of the through hole 130 can be set to be the same as the width of the abdominal hollow 400, and the rear side edge of the through hole 130 can be set to be flush with the second arc surface 320.

[0037] Embodiment Two

[0038] In the second embodiment of the positioning device for the prone position of the present utility model, this embodiment is similar to Embodiment One, the difference being that a first sliding groove 114 for sliding connection with the second connection portion 240 is formed in the first connection portion 112, as Figure 3As shown in the figure. In this embodiment, compared with the first embodiment, the second connecting portion 240 is slidably connected to the first sliding groove 114, which facilitates the stable linear adjustment of the first positioning plate 200.

[0039] Embodiment Three

[0040] The third embodiment of the positioning device for the prone position of the present utility model. This embodiment is similar to the first or second embodiment, except that it further includes a head positioning block 500. The head positioning block 500 is rotatably connected to the first positioning plate 200 and is also movably connected to the first positioning plate 200. This embodiment further includes a first limiting mechanism for restricting the tilting angle of the head positioning block 500 relative to the first positioning plate 200 and a second limiting mechanism for restricting the distance between the head positioning block 500 and the abdominal cavity hollow 400.

[0041] Specifically, a bottom plate 600 is provided at the bottom of the head positioning block 500. A second sliding groove 115 is formed in the front-back direction of the first positioning plate 200. A fifth connection hole 610 is formed at the end of the bottom plate 600. A third connecting member 700 is connected in the second sliding groove 115 and the fifth connection hole 610. The third connecting member 700 includes two parts, namely a connecting rod 710 and a tightening member 720 connected by threads. Sliders 730 are provided on both sides of the bottom of the connecting rod 710. A third sliding groove 116 is formed on the inner side wall of the second sliding groove 115. The sliders 730 are slidably connected to the third sliding groove 116, thereby guiding the bottom plate 600 and the head positioning block 500 to stably perform linear sliding on the first positioning plate 200. When sliding to the required position, tighten the tightening member 720 to achieve the relative fixation of the head positioning block 500 and the first positioning plate 200, as Figure 5 、 7 shown.

[0042] The rear end of the head fixing block is rotatably connected to the bottom plate 600 through a shaft seat 620 and a rotating shaft 510; two mounting plates 630 are vertically connected to two opposite sides of the bottom plate 600. A plurality of first mounting holes 631 arranged in an arc are formed in the mounting plates 630; a mounting block 520 corresponding to the position of the mounting plates 630 is connected to the bottom of the head fixing block. A second mounting hole 521 is provided on the mounting block 520. When it is necessary to adjust the tilting angle of the head fixing block, align the position of the second mounting hole 521 with the corresponding first mounting hole 631, and install a mounting member 800 in the first mounting hole 631 and the second mounting hole 521 to fix the relative angle between the head fixing block and the first positioning plate 200, as Figure 5 、 Figure 6 shown. In this embodiment, the mounting member 800 can be a screw. At this time, both the first mounting hole 631 and the second mounting hole 521 are screw holes.

[0043] When this embodiment is implemented, the distance between the head positioning block 500 and the abdominal hollow 400 can be adjusted according to the patient's reminder and needs, and the angle of the head positioning block 500 can be adjusted, so that the patient can obtain better comfort during the treatment compared with the first and second embodiments.

[0044] In the specific content of the above specific implementation manner, each technical feature can be combined arbitrarily without contradiction. For the sake of concise description, not all possible combinations of the above technical features are described. However, as long as the combinations of these technical features do not exist in contradiction, they should be considered as the scope described in this specification.

[0045] Obviously, the above embodiments of the present invention are only examples for clearly illustrating the present invention, rather than limiting the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A positioning device for a prone position, characterized in that, It includes a base (100), a first positioning plate (200), and a second positioning plate (300). The base (100) includes a first connecting body (110) and a second connecting body (120) arranged front and back. There is a through hole (130) between the first connecting body (110) and the second connecting body (120). The first positioning plate (200) is movably connected to the first connecting body (110), and the second positioning plate (300) is fixedly connected to the second connecting body (120). An abdominal hollow (400) with adjustable size is formed between the first positioning plate (200) and the second positioning plate (300), and the abdominal hollow (400) is communicated with the through hole (130).

2. The positioning device for the prone position according to claim 1, wherein The first connecting body (110) is provided with positioning columns (111), and the first positioning plate (200) is provided with a number of uniformly arranged positioning hole groups (210), and the positioning columns (111) cooperate with the positioning hole groups (210).

3. The positioning device for the prone position according to claim 2, characterized in that, There are two groups of the positioning columns (111), and the connection line of the two groups of positioning columns (111) is perpendicular to the linear track of the movement of the first positioning plate (200); each of the positioning hole groups (210) includes two positioning holes that cooperate with the positioning columns (111).

4. The positioning device for the prone position according to claim 3, characterized in that, The first positioning plate (200) includes a positioning structure (220) and a movable structure (230) connected up and down. The movable structure (230) is a plate-like structure, and the positioning holes are opened in the plate-like structure.

5. The positioning device for the prone position according to claim 1, characterized in that, The first connecting body (110) is provided with a first connecting portion (112), and the first positioning plate (200) is provided with a second connecting portion (240). The first connecting portion (112) is provided with a number of uniformly arranged first connecting holes (113), and the second connecting portion (240) is provided with multiple groups of uniformly arranged second connecting holes. The first connecting holes (113) and the second connecting holes are connected by a first connecting piece.

6. The positioning device for the prone position according to claim 5, characterized in that, The first connecting portion (112) is provided with a first sliding groove (114) for sliding connection with the second connecting portion (240).

7. The positioning device for the prone position according to claim 1, characterized in that, The second connecting body (120) is provided with a third connecting portion (121), and the second positioning plate (300) is provided with a fourth connecting portion (310). The third connecting portion (121) is provided with a number of uniformly arranged third connecting holes (122), and the fourth connecting portion (310) is provided with a number of uniformly arranged fourth connecting holes. The number of the third connecting holes (122) and the fourth connecting holes is equal, and the third connecting holes (122) and the fourth connecting holes are connected by a second connecting piece.

8. The positioning device for the prone position according to claim 1, characterized in that, One end of the first positioning plate (200) close to the second positioning plate (300) is provided with a first arc surface (260), and the end surface of the second positioning plate (300) close to the first positioning plate (200) is provided with a second arc surface (320). The abdominal hollow (400) is formed between the first arc surface (260) and the second arc surface (320).

9. The positioning device for the prone position according to any one of claims 1 to 8, characterized in that, It further includes a head positioning block (500), and the head positioning block (500) is rotationally connected to the first positioning plate (200), and the head positioning block (500) is also movably connected to the first positioning plate (200).

10. The positioning device for the prone position according to claim 9, characterized in that, It further includes a first limiting mechanism for limiting the inclination angle of the head positioning block (500) relative to the first positioning plate (200) and a second limiting mechanism for limiting the distance between the head positioning block (500) and the abdominal hollow (400).

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