Hand fixing device for neck radiotherapy

Abstract

The utility model belongs to the technical field of radiotherapy auxiliary instruments, and particularly relates to a hand fixing device for neck radiotherapy, which comprises at least one single body. Each single body comprises a supporting part and a grabbing part; the supporting part comprises a central column and a hollow column, a groove in the axial direction and a plurality of long holes which are formed in the circumferential direction and communicate with the groove are formed in the hollow column, and the long holes are distributed in the axial direction of the hollow column; an adjusting rod capable of penetrating through the long hole is fixedly connected to the central column, and the telescopic supporting part can adapt to patients of different figures and the bending degree of arms; when the length of the supporting part needs to be adjusted, the supporting part can be adjusted to a proper length only by moving the adjusting rod towards the groove along the long hole, rotating the central column, moving the adjusting rod to the groove and releasing the limitation on the central column, and then the central column can be limited by rotating the adjusting rod towards the corresponding long hole, so that the whole adjusting process is relatively simple and rapid; the problems that the hand placing repeatability of a patient is poor, errors are large, and the comfort degree is poor are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of radiotherapy auxiliary equipment, and in particular relates to a hand fixing device for neck radiotherapy. Background Art

[0002] Head and neck tumors and chest and abdominal tumors are common malignant tumors in clinical practice, with high morbidity and mortality. Investigations have found that there are no typical clinical manifestations in the early stages of the disease, and the onset is relatively hidden, so it is often not discovered until the middle or late stages. Radiotherapy as a local treatment method includes preventive, radical and palliative methods, and the irradiation method mainly uses external irradiation.

[0003] As radiotherapy becomes more standardized and its accuracy gradually improves, the requirements for fixation methods are getting higher and higher while accurately planning. Inaccurate positioning during radiotherapy will greatly increase the recurrence rate of patients receiving radiotherapy. At the same time, there are reports that the improvement of body position fixation accuracy can reduce the MPTV expansion value of the intensity modulated radiotherapy plan, thereby reducing the irradiation of normal tissues. It can be seen that only accurate body position fixation technology can truly reflect the dose advantage and quality assurance of intensity modulated technology. During radiotherapy, the patient's physical condition is often not ideal, which leads to larger errors and poorer treatment effects. Among them, the unfixed position of the hand for head and neck tumors will lead to uncertain shoulder position and poor repeatability, thus affecting the accuracy of the target area. For chest and abdominal tumors, patients need to raise their hands. Traditionally, patients raise their hands and hold their elbows, and then place their foreheads. Because the position of the hands is different each time, it will also lead to inconsistent traction of the chest and abdomen. If the time is too long, the patient's hand strength will be insufficient, and the hands will move up and down, left and right, resulting in poor repeatability, larger errors, and poor comfort. However, the dose gradient of IMRT intensity modulated therapy varies greatly, and higher requirements are placed on positioning repeatability and accuracy. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a hand fixing device for neck radiotherapy, so as to solve the problems of poor repeatability, large error and poor comfort of patient's hand placement.

[0005] The content of the utility model includes at least one monomer;

[0006] The monomer comprises: a support portion that can be fixed and telescopically adjusted, and a grip portion disposed on the support portion for hand gripping;

[0007] The support part includes: a central column and a hollow column sleeved on the central column, the hollow column is provided with an axial groove and a plurality of long holes opened along the circumferential direction and connected to the groove, and the plurality of long holes are distributed along the axial direction of the hollow column; an adjustment rod that can pass through the long hole is fixedly connected to the central column.

[0008] Optionally, a slot for limiting the movement of the adjusting rod is formed at one end of each of the long holes away from the groove.

[0009] Optionally, one end of the groove close to the gripping portion passes through the hollow column.

[0010] Optionally, the gripping portion comprises an adapter seat fixed on the supporting portion and a gripping rod with one end hinged to the adapter seat; the adapter seat is provided with a limiting portion abutting against the bottom of the gripping rod, so as to keep the gripping rod in a horizontal state.

[0011] Optionally, the surface of the gripping rod is provided with a plurality of concave curved surfaces cooperating with fingers.

[0012] Optionally, the plurality of concave curved surfaces are symmetrically arranged in two rows.

[0013] Optionally, the hand fixing device further comprises a base connected to the supporting part, at least one fastening bolt is provided on the base, and the base is fixed to the carrier by the fastening bolt.

[0014] Optionally, the base includes a rotating part fixedly connected to the supporting part, a fixed part rotatably connected to the connecting part, and a positioning pin inserted into the rotating part and the fixed part; a plurality of positioning holes 1 are circumferentially distributed on one side of the rotating part close to the fixed part, the fixed part is provided with at least one positioning hole 2, and the positioning hole 2 is aligned with any positioning hole 1 through rotation adjustment.

[0015] Optionally, the rotating part and the fixed part are respectively provided with marking lines and angle scales, and each scale of the angle scale corresponds to a positioning hole one.

[0016] Optionally, a fixing groove and a plurality of fastening screw holes are provided on the fixing portion, the width direction of the fixing groove is parallel to the axial direction of the fastening screw holes, and the fastening bolts are threadedly connected to the fastening screw holes.

[0017] The beneficial effect of the utility model is that the hand fixing device for neck radiotherapy provided by the utility model can be a single unit fixed at an appropriate position of the treatment platform, and the gripping part needs to be designed to be longer so that the patient can grip it with two hands. Of course, it can also be two symmetrically arranged single units fixed at corresponding positions of the treatment platform. Since the single unit can be fixed at a specified position, the position of the gripping part can also be fixed at a specified position, so that the patient can place the hand more stably each time as long as he grasps the gripping part, ensuring that the hand placement position is more accurate each time, which is conducive to radiotherapy and ensures the treatment effect. At the same time, it can also improve the patient's comfort. In addition, the retractable support part can adapt to patients of different body shapes and the degree to which the arm needs to be bent; the specific adjustment method of the support part is as follows: when the length of the support part needs to be adjusted, it is only necessary to move the adjustment rod along the long hole to the groove, and at the same time drive the central column to rotate. The adjustment rod moves to the groove, releases the restriction on the central column, and then the central column can be moved along the hollow column to adjust the support part to a suitable length, and then the adjustment rod is rotated toward the corresponding long hole to restrict the central column. The whole adjustment process is relatively simple and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the three-dimensional structure of the hand fixing device provided by the utility model;

[0019] Figure 2 A front view of the hand fixing device provided by the utility model;

[0020] Figure 3 A side view of the hand fixing device provided by the utility model;

[0021] Figure 4 This is a structural schematic diagram of a part of a hollow column and a hidden fixing part of a base provided by the utility model;

[0022] Figure 5 This is a structural schematic diagram of the fixing part provided by the utility model.

[0023] In the figure: 100, monomer; 11, supporting part; 111, hollow column; 112, central column; 113, groove; 114, long hole; 115, adjusting rod; 1151, handle one; 116, slot; 12, gripping part; 121, adapter; 122, gripping rod; 123, recessed curved surface; 13, base; 131, rotating part; 1311, positioning hole one; 1312, marking line; 132, fixing part; 1321, positioning hole two; 1322, angle scale; 133, positioning pin; 1331, column one; 1332, column two; 1333, column three; 1334, spring; 1335, handle two; 14, fastening bolt. DETAILED DESCRIPTION

[0024] like Figure 1-5 As shown, the utility model provides a hand fixation device for neck radiotherapy, including at least one monomer 100; the monomer 100 includes: a support portion 11 that can be fixed and telescopically adjusted, and a gripping portion 12 arranged on the support portion 11 for hand gripping; the support portion 11 includes: a central column 112 and a hollow column 111 sleeved on the central column 112, the hollow column 111 is provided with an axial groove 113 and a plurality of long holes 114 that are opened along the circumferential direction and connected to the groove 113, and the plurality of long holes 114 are distributed along the axial direction of the hollow column 111; an adjusting rod 115 that can pass through the long hole 114 is fixedly connected to the central column 112.

[0025] Compared with the prior art, the utility model provides a hand fixing device for neck radiotherapy, wherein the monomer 100 can be fixed at an appropriate position on the treatment platform, and the gripping portion 12 needs to be designed to be longer so that the patient can grip it with both hands. Of course, two symmetrically arranged monomers 100 can also be fixed at corresponding positions on the treatment platform. Since the monomer 100 can be fixed at a designated position, the position of the gripping portion 12 can also be fixed at a designated position, so that the patient can place his hand more stably each time by simply grasping the gripping portion 12, thereby ensuring that the hand is placed in a more accurate position each time, which is beneficial to radiotherapy and ensures the treatment effect. At the same time, it can also improve the patient's comfort. In addition, the retractable support portion 11 can adapt to patients of different body shapes and the degree to which the arm needs to bend; the specific adjustment method of the support portion 11 is as follows. When the length of the support portion 11 needs to be adjusted, the adjustment rod 115 only needs to be moved along the long hole 114 toward the groove 113, while driving the center column 112 to rotate. The adjustment rod 115 moves to the groove 113 to release the restriction on the center column 112. The center column 112 can then be moved along the hollow column 111 to adjust the support portion 11 to a suitable length. The adjustment rod 115 can then be rotated toward the corresponding long hole 114 to restrict the center column 112. The entire adjustment process is relatively simple and quick.

[0026] In this embodiment, the center column 112 is a hollow circular tube or a solid circular tube, the hollow column 111 is a hollow circular tube, the outer wall of the center column 112 is gap-matched with the inner wall of the hollow column 111, the groove 113 is opened along the axial direction of the hollow column 111 and is in the shape of an elongated strip, and a plurality of long holes 114 are evenly distributed on one side of the groove 113, and the long holes 114 can be perpendicular to the groove 113, or the long holes 114 can extend obliquely downward, and the number of levels can be adjusted according to the support portion 11, and the number of long holes 114 is not limited.

[0027] In one embodiment, a slot 116 for limiting the movement of the adjustment rod 115 is formed at one end of each long hole 114 away from the groove 113. Thus, when the adjustment rod 115 rotates along the long hole 114 to a position limiting the hollow column 111, the adjustment rod 115 falls into the slot 116 under the gravity of the hollow column 111, thereby limiting the adjustment rod 115, keeping the hollow column 111 and the gripping portion 12 stable and not easily deflected by external forces.

[0028] Furthermore, one end of the groove 113 near the gripping portion 12 passes through the hollow column 111. Specifically, it can be understood that the groove 113 is opened from one end of the hollow column 111 and extends to the other end, but does not completely pass through the hollow column 111, so that the hollow column 111 and the center column 112 can be quickly assembled and disassembled. In order to save more effort when rotating the adjustment rod 115, a handle 1151 is welded or screwed at the end of the adjustment rod 115. Preferably, the handle 1151 is a spherical handle.

[0029] In this embodiment, the gripping portion 12 includes an adapter seat 121 fixed on the support portion 11 and a gripping rod 122 with one end hinged to the adapter seat 121; the adapter seat 121 is provided with a limiting portion abutting against the bottom of the gripping rod 122 for keeping the gripping rod 122 in a horizontal state.

[0030] Specifically, the adapter seat 121 is provided with a slot, and the grasping rod 122 can enter the slot during the rotation process, and the bottom surface of the slot can abut against the grasping rod 122, so that the grasping rod 122 is perpendicular to the center column 112, and the grasping rod 122 can also be in a horizontal state, wherein the adapter seat 121 and one end of the center column 112 can be fixed by welding, screwing or bolts.

[0031] In one embodiment, the surface of the gripping rod 122 is provided with a plurality of concave curved surfaces 123 that cooperate with the fingers. In this way, the provision of the plurality of concave curved surfaces 123 can correct the position where the patient grasps the gripping rod 122 and can also improve comfort.

[0032] Furthermore, the plurality of concave curved surfaces 123 are symmetrically arranged in two rows, so that more concave curved surfaces 123 can cooperate with the patient's fingers, further improving the comfort level. At the same time, it is also convenient for the patient to observe the concave curved surfaces 123 when lying down.

[0033] In one embodiment, the concave curved surfaces 123 symmetrically arranged on both sides of the gripping rod 122 are penetrated by through holes, so that it is easier to improve the accuracy of the opening position of the concave curved surfaces 123 during processing.

[0034] In this embodiment, the hand fixing device further includes a base 13 connected to the support portion 11, and at least one fastening bolt 14 is provided on the base 13, and the base 13 is fixed to the carrier (treatment platform) by the fastening bolt 14. Specifically, the base 13 is fixed to one end of the hollow column 111 by welding, screwing or bolting, and the base 13 is fixed to the carrier by the fastening bolt 14, which is convenient for installation and disassembly.

[0035] In one embodiment, see Figure 3-5 The base 13 includes a rotating portion 131 fixedly connected to the supporting portion 11, a fixed portion 132 rotatably connected to the connecting portion, and a positioning pin 133 inserted into the rotating portion 131 and the fixed portion 132; a plurality of positioning holes 1311 are circumferentially distributed on one side of the rotating portion 131 close to the fixed portion 132, and the fixed portion 132 is provided with at least one positioning hole 2 1321, and the positioning hole 2 1321 is aligned with any positioning hole 1 1311 through rotation adjustment.

[0036] Specifically, the top of the rotating part 131 is fixed to one end of the hollow column 111 by welding, screwing or bolting, and the rotating part 131 is embedded in the fixing part 132 and connected by a rotating shaft to realize the fixed-axis rotation connection between the rotating part 131 and the fixing part 132. In order to limit and fix the rotation angle of the rotating part 131 and the fixing part 132, a plurality of positioning holes 1311 and a positioning hole 2 1321 are respectively opened on the rotating part 131 and the fixing part 132, and the rotation angle of the rotating part 131 and the fixing part 132 is fixed by inserting a positioning pin 133 through the positioning hole 2 1321 and one of the positioning holes 1311, so that the support part 11 forms a certain angle with the carrier, and the gripping part 12 forms a suitable angle with the carrier, so that a certain part of the patient is at a suitable angle, thereby adapting to radiotherapy treatment at different positions.

[0037] In one embodiment, the positioning pin 133 includes a column 1331, a column 1332 and a column 1333 arranged in sequence, the diameter of the middle column 1332 is smaller than the diameters of the column 1 1331 and the column 1333 at both ends, the column 1332 is sleeved with a spring 1334, the diameter of the part of the positioning hole 1321 accommodating the spring 1334 is larger than the diameter of other parts, one end of the spring 1334 abuts against the rotating part 131, and the spring 1334 is in contact with the rotating part 131. Under the action of the elastic force of 1334, column three 1333 penetrates into positioning hole one 1311, and column one 1331 abuts against the outer wall of the fixing part 132. When it is necessary to rotate and adjust the angle between the rotating part 131 and the fixing part 132, column one 1331 is pulled outward to compress the spring 1334 while column three 1333 is separated from positioning hole one 1311. Loosening column one 1331 allows column three 1333 to re-enter positioning hole one 1311.

[0038] Furthermore, in order to save effort when pulling the column 1331, a handle 2 1335 is welded or screwed to the end of the column 1 1331. Preferably, the handle 2 1335 is a spherical handle.

[0039] In one embodiment, the rotating portion 131 and the fixed portion 132 are respectively provided with marking lines 1312 and angle scales 1322, and each scale of the angle scale 1322 corresponds to one positioning hole 1311; alternatively, the rotating portion 131 and the fixed portion 132 are respectively provided with angle scales 1322 and marking lines 1312. In this way, the angles of the support portion 11 and the gripping portion 12 relative to the carrier can be accurately adjusted.

[0040] In one embodiment, a fixing groove and a plurality of fastening screw holes are provided on the fixing portion 132, the width direction of the fixing groove is parallel to the axis direction of the fastening screw hole, and the fastening bolt 14 is screwed with the fastening screw hole. In this way, the fixing portion 132 can be clamped at multiple positions of the carrier through the fixing groove, which can better adapt to the hand fixation of different patients.

[0041] A person skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of protection of the present application is limited to these examples. In line with the concept of the present application, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of different aspects of one or more embodiments of the present application as described above, which are not provided in detail for the sake of simplicity.

[0042] One or more embodiments of the present application are intended to cover all such substitutions, modifications and variations that fall within the broad scope of the present application. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of one or more embodiments of the present application should be included in the protection scope of the present application.

Claims

1. A hand fixation device for neck radiotherapy, characterized in that: comprising at least one monomer (100); The single body (100) comprises: a support portion (11) that is fixable and telescopically adjustable, and a gripping portion (12) disposed on the support portion (11) for hand gripping; The support portion (11) comprises: a central column (112) and a hollow column (111) sleeved on the central column (112); the hollow column (111) is provided with an axially extending groove (113) and a plurality of circumferentially extending long holes (114) connected to the groove (113); the plurality of long holes (114) are distributed along the axial direction of the hollow column (111); and an adjusting rod (115) capable of passing through the long holes (114) is fixedly connected to the central column (112).

2. The hand fixation device for neck radiotherapy according to claim 1, characterized in that: A slot (116) for limiting the movement of the adjustment rod (115) is formed at one end of each of the long holes (114) away from the groove (113).

3. The hand fixation device for neck radiotherapy according to claim 1, characterized in that: An end of the groove (113) close to the gripping portion (12) passes through the hollow column (111).

4. The hand fixation device for neck radiotherapy according to claim 1, characterized in that: The gripping portion (12) comprises an adapter seat (121) fixed on the supporting portion (11) and a gripping rod (122) having one end hinged to the adapter seat (121); the adapter seat (121) is provided with a limiting portion abutting against the bottom of the gripping rod (122) for keeping the gripping rod (122) in a horizontal state.

5. The hand fixation device for neck radiotherapy according to claim 4, characterized in that: The surface of the gripping rod (122) is provided with a plurality of concave curved surfaces (123) that cooperate with fingers.

6. The hand fixation device for neck radiotherapy according to claim 5, characterized in that: The plurality of concave curved surfaces (123) are symmetrically arranged in two rows.

7. The hand fixation device for neck radiotherapy according to any one of claims 1 to 6, characterized in that: It also comprises a base (13) connected to the support portion (11), wherein at least one fastening bolt (14) is provided on the base (13), and the base (13) is fixed to the carrier via the fastening bolt (14).

8. The hand fixation device for neck radiotherapy according to claim 7, characterized in that: The base (13) comprises a rotating part (131) fixedly connected to the supporting part (11), a fixing part (132) connected to the connecting part in a fixed-axis rotational manner, and a positioning pin (133) inserted into the rotating part (131) and the fixing part (132); a plurality of first positioning holes (1311) are circumferentially distributed on one side of the rotating part (131) close to the fixing part (132), the fixing part (132) is provided with at least one second positioning hole (1321), and the second positioning hole (1321) is aligned with any first positioning hole (1311) by rotation adjustment.

9. The hand fixation device for neck radiotherapy according to claim 8, characterized in that: The rotating portion (131) and the fixed portion (132) are respectively provided with marking lines (1312) and angle scales (1322), and each scale of the angle scale (1322) corresponds to a positioning hole one (1311).

10. The hand fixation device for neck radiotherapy according to claim 9, characterized in that: The fixing portion (132) is provided with a fixing groove and a plurality of fastening screw holes, the width direction of the fixing groove is parallel to the axial direction of the fastening screw holes, and the fastening bolts (14) are screwed into the fastening screw holes.

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