Radiotherapy positioning device for multiple brain metastases

Abstract

The utility model relates to the technical field of radiotherapy auxiliary instruments, in particular to a radiotherapy positioning device for multiple brain metastasis tumors, which comprises a mounting base plate; the head fixing device is fixedly connected to the top of the mounting base plate; the neck fixing device is mounted on the surface of the mounting base plate; the head fixing device comprises two threaded rods which are rotationally connected to the top of the mounting base plate, and the two threaded rods are fixedly connected; the head fixing device can fix the head of the patient to the center of the axis of the mounting base plate, on the basis that the head of the patient is effectively fixed, the difficulty that medical workers operate a laser system to position the central point of the head of the patient can be lowered, and the medical workers can use the laser system more easily.

Description

Technical Field

[0001] The utility model relates to the technical field of radiotherapy auxiliary instruments, and particularly relates to a radiotherapy positioning device for multiple brain metastases. Background Technique

[0002] Brain metastases are common secondary intracranial tumors. Multiple brain metastases refer to the metastasis of malignant tumors in other parts of the body to the intracranial cavity. Radiotherapy is a common treatment method for multiple brain metastases.

[0003] The Chinese patent discloses a head radiotherapy seat with a positioning function (the authorization announcement number is CN219481346U). In the utility model, by providing an adjustable threaded rod, the baffle can fix the patient's head according to the diameter of the patient's head to prevent the patient's head from shifting during radiotherapy, and the lower jaw fixing belt can be fixed on the patient's lower jaw to further fix the patient's head.

[0004] According to the above comparison case, the above device uses two independently adjustable threaded rods to adjust the distance between the two stoppers. Since a laser system is used to determine an initial origin during radiotherapy positioning, this origin usually coincides with the center position of the patient's head, and the above device requires medical staff to assist the patient to correct the position of the patient's head in advance, and then it can be fixed by the stoppers, increasing the burden on medical staff to fix the patient's head.

[0005] Therefore, a radiotherapy positioning device for multiple brain metastases is proposed to solve the above problems. Content of the Utility Model

[0006] The purpose of the utility model is to provide a radiotherapy positioning device for multiple brain metastases to solve the above problems, improving the problem that it is difficult to center the patient's head with the radiotherapy positioning device for multiple brain metastases and increasing the burden on medical staff.

[0007] The utility model realizes the above purpose through the following technical solutions. A radiotherapy positioning device for multiple brain metastases includes: a mounting backing plate; a head fixing device, the head fixing device is fixedly connected to the top of the mounting backing plate; a neck fixing device, the neck fixing device is installed on the surface of the mounting backing plate.

[0008] Preferably, the head fixing device includes two threaded rods rotatably connected to the top of the mounting base plate. The two threaded rods are fixedly connected to each other and symmetrically distributed on both sides of the axis of the mounting base plate. The thread directions on the surfaces of the two threaded rods are opposite. A fixing strip that is threadedly connected to the surface of the threaded rod and slidably connected to the mounting base plate is provided. The head fixing device can center and fix the patient's head on the axis of the mounting base plate. On the basis of effectively fixing the patient's head, this can reduce the difficulty for medical staff to operate the laser system to locate the center point of the patient's head, making it easier for medical staff to use.

[0009] Preferably, one end of one of the threaded posts facing away from the other threaded post is fixedly connected with an adjusting handle, and the corners of the adjusting handle are rounded. This can make it easier for medical staff to fix or release the patient's head, so as to reduce the adjustment burden on medical staff.

[0010] Preferably, flexible protection blocks are fixedly connected to the opposite ends of the two fixing strips. The flexible protection blocks are made of medical rubber material. This can not only make the fixing strips fit the patient's head more closely, but also reduce the probability of the fixing strips hurting the patient, so as to improve the overall safety factor of the head fixing device.

[0011] Preferably, the neck fixing device includes a first airbag and a second airbag. The first airbag is fixedly connected to the top of the mounting base plate, and the second airbag is slidably connected to the top of the mounting base plate. A first air guide hose is fixedly connected and communicated between the first airbag and the second airbag. The first airbag is in an inflated state at this time, and the second airbag is in a deflated state at this time. The neck fixing device can be inflated by the patient's head and support the patient's neck. This can not only reduce the hardness of the patient's head rest, but also reduce the hanging burden on the patient's neck, making the patient lie more comfortably.

[0012] Preferably, a chute is opened on the top of the mounting base plate. A threaded adjusting rod is rotatably connected inside the chute. One end of the threaded adjusting rod penetrates through the chute and extends to the outside of the mounting base plate. A slider that is threadedly connected to the surface of the threaded adjusting rod and slidably connected to the chute is provided. The top of the slider is fixedly connected to the second airbag. This can enable medical staff to accurately adjust the position of the second airbag according to the position of the patient's neck to meet different patients.

[0013] Preferably, a cavity is formed inside the flexible protection block. Both ends of the second airbag are fixedly connected and communicated with a second air guide hose fixedly connected to the adjacent flexible protection block. One end of the second air guide hose is communicated with the adjacent cavity. The use of a flexible protection block with a cavity can not only improve the deformation degree of the flexible protection block to enhance the effect of the flexible protection block fitting the side of the patient's head, but also, in combination with the use of the second air guide hose, when the flexible protection block is squeezed, the gas inside the cavity will also be transported into the second airbag through the second air guide hose, which can improve the inflation degree of the second airbag and make the second airbag more firmly support the patient's neck.

[0014] Preferably, a pressing plate is fixedly connected to the inner top wall of the first airbag. The horizontal cross-sectional shape of the pressing plate is circular, which can improve the squeezing degree of the patient's head on the first airbag and further improve the inflation degree of the second airbag.

[0015] Preferably, a sponge protection block is fixedly connected to the top of the first airbag. The vertical cross-sectional shape of the top of the sponge protection block is arc-shaped, which can reduce the hardness of the patient's head resting on the top of the pressing plate and make the patient's resting more comfortable.

[0016] Preferably, two groups of scales are provided on the top of the mounting backing plate. One group of scales is parallel to the threaded rod, and the other group of scales is parallel to the threaded adjusting rod. The scales can assist medical staff in correcting the deviation between the center point of the patient's head and the preset initial origin, which can not only reduce the adjustment burden of medical staff, but also improve the adjustment precision of medical staff.

[0017] The beneficial effects of the present utility model are as follows:

[0018] 1. The head fixing device can centrally fix the patient's head on the axis of the mounting backing plate. On the basis of effectively fixing the patient's head, this can reduce the difficulty for medical staff to operate the laser system to locate the center point of the patient's head and make it easier for medical staff to use;

[0019] 2. The neck fixing device can expand by itself through the patient's head and support the patient's neck. This can not only reduce the hardness of the patient's head resting, but also reduce the suspended burden of the patient's neck and make the patient lie more comfortably; The use of a flexible protection block with a cavity can not only improve the deformation degree of the flexible protection block to enhance the effect of the flexible protection block fitting the side of the patient's head, but also, in combination with the use of the second air guide hose, when the flexible protection block is squeezed, the gas inside the cavity will also be transported into the second airbag through the second air guide hose, which can improve the inflation degree of the second airbag and make the second airbag more firmly support the patient's neck. Description of the Drawings

[0020] Figure 1 is a structural schematic diagram of the present utility model;

[0021] Figure 2 is a vertical sectional schematic diagram of the present utility model;

[0022] Figure 3 is a connection schematic diagram of a partial cut - off structure of the head fixing device and the neck fixing device in the present utility model;

[0023] Figure 4 is a horizontal sectional schematic diagram of a partial cut - off structure of the head fixing device and the neck fixing device in the present utility model.

[0024] In the figure: 1. Installation backing plate; 11. Slide groove; 2. Head fixing device; 21. Threaded rod; 22. Fixed strip; 23. Adjusting handle; 24. Flexible protection block; 241. Cavity; 3. Neck fixing device; 31. First airbag; 32. Second airbag; 33. First air guide hose; 34. Threaded adjusting rod; 35. Slide block; 36. Second air guide hose; 37. Pressing plate; 38. Sponge protection block; 4. Scale. Specific embodiments

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0026] During specific implementation: As Figures 1-4 shown, a radiotherapy positioning device for multiple brain metastases includes: an installation backing plate 1; a head fixing device 2, and the head fixing device 2 is fixedly connected to the top of the installation backing plate 1; a neck fixing device 3, and the neck fixing device 3 is installed on the surface of the installation backing plate 1. Medical staff need to lock the installation backing plate 1 at the corresponding position of the radiotherapy treatment bed in advance through non - metallic bolts; there are two groups of scales 4 arranged on the top of the installation backing plate 1. One group of scales 4 is parallel to the threaded rod 21, and the other group of scales 4 is parallel to the threaded adjusting rod 34. The scales 4 can assist medical staff in correcting the deviation between the center point of the patient's head and the preset initial origin, which can not only reduce the adjustment burden of medical staff, but also improve the adjustment precision of medical staff.

[0027] As Figure 2 、 Figure 3 and Figure 4As shown in the figure, the head fixing device 2 includes two threaded rods 21 which are both rotatably connected to the top of the mounting base plate 1. The two threaded rods 21 are fixedly connected to each other. The two threaded rods 21 are symmetrically distributed on both sides of the axis of the mounting base plate 1. The thread directions on the surfaces of the two threaded rods 21 are opposite. A fixing strip 22 which is slidably connected to the mounting base plate 1 is threadedly connected to the surface of the threaded rod 21. One end of one threaded rod 21 facing away from the other threaded rod 21 is fixedly connected with an adjusting handle 23. The edges and corners of the adjusting handle 23 are rounded. Opposite ends of the two fixing strips 22 are both fixedly connected with flexible protection blocks 24. The flexible protection blocks 24 are made of medical rubber materials.

[0028] As Figure 2 , Figure 3 and Figure 4 As shown in the figure, the neck fixing device 3 includes a first airbag 31 and a second airbag 32. The first airbag 31 is fixedly connected to the top of the mounting base plate 1. The second airbag 32 is slidably connected to the top of the mounting base plate 1. A first air guide hose 33 is fixedly connected and communicated between the first airbag 31 and the second airbag 32. At this time, the first airbag 31 is in an inflated state and the second airbag 32 is in a deflated state. A chute 11 is opened on the top of the mounting base plate 1. A threaded adjusting rod 34 is rotatably connected inside the chute 11. One end of the threaded adjusting rod 34 penetrates through the chute 11 and extends to the outside of the mounting base plate 1. A slider 35 which is slidably connected to the chute 11 is threadedly connected to the surface of the threaded adjusting rod 34. The top of the slider 35 is fixedly connected with the second airbag 32. A cavity 241 is opened inside the flexible protection block 24. Both ends of the second airbag 32 are fixedly connected and communicated with a second air guide hose 36 which is fixedly connected with the adjacent flexible protection block 24. One end of the second air guide hose 36 is communicated with the adjacent cavity 241. A pressing plate 37 is fixedly connected to the inner top wall of the first airbag 31. The horizontal cross-sectional shape of the pressing plate 37 is circular. A sponge protection block 38 is fixedly connected to the top of the first airbag 31. The vertical cross-sectional shape of the top of the sponge protection block 38 is arc-shaped.

[0029] When the patient's head is placed on the top of the first airbag 31, the first airbag 31 quickly deflates under the extrusion of the patient's head. The gas inside the first airbag 31 enters the second airbag 32 through the first air guide hose 33. The second airbag 32 fits the patient's neck and deforms correspondingly following the shape of the patient's neck, so as to achieve the effect of flexibly supporting the patient's neck.

[0030] Before the fixed strip 22 fixes the patient's head, the flexible protection block 24 can be attached to the side of the patient's head in advance. During the subsequent movement of the fixed strip 22, the patient's head and the fixed strip 22 cooperate to squeeze the flexible protection block 24, and the flexible protection block 24 squeezes the cavity 241. The gas inside the cavity 241 is squeezed into the second airbag 32 through the second air guide hose 36, which can improve the inflation degree of the second airbag 32 and make the second airbag 32 support the patient's neck more firmly.

[0031] When the present utility model is in use, after the medical staff places the patient's head on the top of the mounting base plate 1, the medical staff only needs to rotate the adjustment handle 23 in the corresponding direction. The adjustment handle 23 drives the threaded rod 21 connected thereto to rotate. This threaded rod 21 drives another threaded rod 21 to rotate. At this time, the two threaded rods 21 rotate synchronously. The threaded rod 21 drives the fixed strip 22 to slide along the mounting base plate 1. Since the thread directions on the surfaces of the two threaded rods 21 are opposite, at this time, the two fixed strips 22 cooperate to move towards each other. When one of the fixed strips 22 contacts the patient's head in advance, this fixed strip 22 pushes the patient's head towards the direction of the other fixed strip 22 until the two fixed strips 22 are respectively attached to both sides of the patient's head. And because the two threaded rods 21 are symmetrically distributed on both sides of the axis line of the mounting base plate 1, the axis line of the fixed patient's head also just coincides with the axis line of the mounting base plate 1. On the basis of effectively fixing the patient's head, this can reduce the difficulty for the medical staff to operate the laser system to locate the center point of the patient's head and make it easier for the medical staff to use.

[0032] It should be noted that the materials of the structures used in the radiotherapy positioning device for multiple brain metastases are all non-metallic materials. The specific materials need to be selected according to the actual situation to reduce the impact on subsequent radiotherapy equipment.

[0033] In addition, it should be understood that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A radiotherapy positioning device for multiple brain metastases, characterized in that: include: Installing the backing plate (1); A head fixing device (2), wherein the head fixing device (2) is fixedly connected to the top of the mounting pad (1); A neck fixing device (3), wherein the neck fixing device (3) is mounted on the surface of the mounting pad (1); The head fixing device (2) comprises two threaded rods (21) which are rotatably connected to the top of the mounting pad (1); the two threaded rods (21) are fixedly connected to each other; the two threaded rods (21) are symmetrically distributed on both sides of the axis of the mounting pad (1); the threads on the surfaces of the two threaded rods (21) are in opposite directions; and the surfaces of the threaded rods (21) are threadedly connected to a fixing strip (22) which is slidably connected to the mounting pad (1).

2. A radiotherapy positioning device for multiple brain metastases according to claim 1, characterized in that: An end of one of the threaded rods (21) facing away from the other threaded rod (21) is fixedly connected to an adjustment handle (23), and the corners of the adjustment handle (23) are rounded.

3. The radiotherapy positioning device for multiple brain metastases according to claim 1, characterized in that: The opposite ends of the two fixing strips (22) are fixedly connected with flexible protection blocks (24), and the flexible protection blocks (24) are components made of medical rubber material.

4. The radiotherapy positioning device for multiple brain metastases according to claim 3, characterized in that: The neck fixing device (3) comprises a first airbag (31) and a second airbag (32), wherein the first airbag (31) is fixedly connected to the top of the mounting pad (1), and the second airbag (32) is slidably connected to the top of the mounting pad (1), and the first airbag (31) and the second airbag (32) are fixedly connected and connected by a first air guide hose (33), and the first airbag (31) is in an expanded state at this time, and the second airbag (32) is in a deflated state at this time.

5. The radiotherapy positioning device for multiple brain metastases according to claim 4, characterized in that: A slide groove (11) is provided on the top of the mounting pad (1), and a threaded adjustment rod (34) is rotatably connected inside the slide groove (11). One end of the threaded adjustment rod (34) passes through the slide groove (11) and extends to the outside of the mounting pad (1). A slider (35) slidably connected to the slide groove (11) is threadedly connected on the surface of the threaded adjustment rod (34), and the top of the slider (35) is fixedly connected to the second airbag (32).

6. The radiotherapy positioning device for multiple brain metastases according to claim 4, characterized in that: A cavity (241) is provided inside the flexible protection block (24), both ends of the second airbag (32) are fixedly connected and communicated with a second air guide hose (36) fixedly connected to an adjacent flexible protection block (24), and one end of the second air guide hose (36) is communicated with the adjacent cavity (241).

7. The radiotherapy positioning device for multiple brain metastases according to claim 4, characterized in that: A pressure plate (37) is fixedly connected to the inner top wall of the first airbag (31), and the horizontal cross-section of the pressure plate (37) is circular.

8. The radiotherapy positioning device for multiple brain metastases according to claim 4, characterized in that: A sponge protection block (38) is fixedly connected to the top of the first airbag (31), and the vertical cross-section of the top of the sponge protection block (38) is in the shape of an arc.

9. The radiotherapy positioning device for multiple brain metastases according to claim 4, characterized in that: Two groups of scales (4) are arranged on the top of the mounting pad (1), one group of the scales (4) is parallel to the threaded rod (21), and the other group of the scales (4) is parallel to the threaded adjustment rod (34).

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