CN114129911B

CN114129911B - Multifunctional hand fixer for radiotherapy

Info

Publication number: CN114129911B
Application number: CN202111414450.1A
Authority: CN
Inventors: 胡银祥; 游士虎; 毕婷; 张皓嘉; 张毅; 金海洁
Original assignee: Affiliated Hospital of Guizhou Medical University
Current assignee: Affiliated Hospital of Guizhou Medical University
Priority date: 2021-11-25
Filing date: 2021-11-25
Publication date: 2023-05-23
Anticipated expiration: 2041-11-25
Also published as: CN114129911A

Abstract

The invention belongs to the technical field of medical appliances, and particularly relates to a multifunctional hand fixer for radiotherapy. A multifunctional hand fixer for radiotherapy comprises a mounting device, an adjusting device, a sliding rod, a holding device, a fixing device, an inflator pump and an air pipe; the adjusting device is fixedly connected to the top of the mounting device, one end of the sliding rod is rotatably connected with the top of the mounting device, the adjusting device is in sliding sleeve joint with the sliding rod, the holding device is in sleeve joint with the sliding rod and is in sliding connection with the sliding rod, the fixing device is fixedly connected with the two ends of the holding device, the inflator pump is mounted on the side wall of the mounting device, and the inflator pump is provided with a gas transmission port and is connected with the fixing device through a gas pipe. The hand of the patient can be effectively fixed, the pressure sensor monitors and controls the hand holding power to monitor and control the inflator pump and the electromagnetic valve to change the volume of the air bag in real time, the hand of the patient is fixed, the consistency of the positioning repeatability can be ensured, and meanwhile, the comfort of the patient in the treatment process is also increased.

Description

Multifunctional hand fixer for radiotherapy

Technical Field

The invention belongs to the technical field of medical appliances, and particularly relates to a multifunctional hand fixer for radiotherapy.

Background

Tumor radiotherapy is a local treatment method for treating tumors by using radiation. Radiation includes radioisotope generated alpha, beta, gamma rays, and x-rays, electron beams, proton beams, and other particle beams generated by various types of x-ray therapeutic machines or accelerators, and the like. About 70% of cancer patients require radiation therapy in the course of treatment of cancer, and about 40% of cancer can be radically treated with radiation therapy. The role and position of radiation therapy in tumor therapy are increasingly prominent, and radiation therapy has become one of the main means for treating malignant tumors.

The head and neck tumor and chest and abdomen tumor are clinically common malignant tumor diseases, have higher morbidity and mortality, and are found to have atypical clinical manifestations in early stage and hidden onset, and are often found in middle and late stages. In the radiotherapy process, errors often become large due to the fact that the physical condition of a patient is not ideal, and the treatment effect is poor. The position of the head and neck tumor hand is not fixed, the position of the shoulder is uncertain, the repeatability is poor, the accuracy of a target area is affected, the chest and abdomen tumor needs to be lifted by two hands of a patient, the hands of the patient are lifted and the elbows are held in the traditional way, and then the forehead is placed, because the traction of the chest and abdomen position is inconsistent due to the fact that the positions of the hands are placed differently each time, the hand strength of the patient is insufficient due to overlong time, the hand can move up and down and left and right, the repeatability is poor, the error is large, and the comfort level is poor. And the gradient change of the IMRT intensity modulated therapeutic dose is large, and the requirements on positioning repeatability and accuracy are high. In order to solve the precision problem, a multifunctional hand fixer for radiotherapy is designed.

Disclosure of Invention

The invention aims to design a multifunctional hand fixer for radiotherapy, which is suitable for head and neck tumors and chest and abdomen tumors, can effectively fix the hands of a patient, effectively measure the force of the hands of the patient, and can change the volume of an air bag in real time through monitoring the hand holding force of the patient, fix the hands of the patient, and simultaneously avoid the error increase caused by the movement of the hands of the patient to pull shoulders, thereby ensuring consistent positioning repeatability and improving the comfort of the patient in the treatment process.

The technical aim of the invention is realized by the following technical scheme: a multifunctional hand fixer for radiotherapy, which is characterized in that: comprises a mounting device, an adjusting device, a sliding rod, a holding device, a fixing device, an inflator pump and an air pipe; the adjusting device is fixedly connected to the top of the mounting device, one end of the sliding rod is rotatably connected with the top of the mounting device, the adjusting device is in sliding sleeve joint with the sliding rod, the holding device is in sleeve joint with the sliding rod and is in sliding connection with the sliding rod, the fixing device is fixedly connected with two ends of the holding device, the inflator pump is mounted on the side wall of the mounting device, and the inflator pump is provided with a gas transmission port and is connected with the fixing device through a gas pipe;

the holding device is a sliding cylinder sleeved on the sliding rod, and positioning holes penetrating through the cylinder wall are formed in two ends of the sliding cylinder; the outer surface of the sliding cylinder is provided with a pressure sensor and a holding pad, and the holding pad wraps the outer surface of the sliding cylinder; connecting rods are oppositely arranged at two ends of the surface of the sliding cylinder;

the fixing device comprises a circular fixing ring, an air bag is arranged on the inner wall of the fixing ring, hollow fixing columns are symmetrically arranged on the outer wall of the fixing ring, one end of a connecting rod is connected with the surface of a sliding cylinder, the other end of the connecting rod is connected with the side face of the fixing column, a channel is arranged at the joint of the fixing column and the fixing ring, the channel penetrates through the annular wall of the fixing ring, an air charging port and an air discharging port are arranged on the air bag, the air charging port is arranged in one fixing column through the channel, the air discharging port is arranged in the other fixing column through the channel, electromagnetic valves are arranged on the air charging port and the air discharging port, and the air charging port is connected with an air conveying port of an air pump.

By adopting the technical scheme, the hand fixer comprises the mounting device, the adjusting device, the sliding rod, the holding device, the fixing device, the inflator pump and the air pipe, the hand fixer is arranged on two sides of a sickbed through the mounting device, the position of the sliding rod is adjusted through the adjusting device, and the holding device slides on the sliding rod to adjust the holding position of the hand of a patient when the patient is in use, so that the patient can maintain a good treatment posture; the two ends of one side of the sliding cylinder, which is far away from the set positioning hole, are respectively provided with a connecting rod, and the holding device is connected with the fixing device through the connecting rods. The hand holding device is used for holding hands of a patient through the holding device and the fixing device, the holding device detects the holding power of the hands of the patient, so that the inflator pump inflates an air bag of the fixing device through an air pipe, the electromagnetic valve controls the air bag to inflate and deflate, the size of the air bag is controlled to change, and the fixed posture of the hands is kept.

The invention is further provided with: the mounting device comprises a buckle, one side of the top of the buckle is arranged on the display screen, a groove is formed in the opposite side of the side, provided with the display screen, of the buckle, a first cross rod is arranged in the groove, and two ends of the first cross rod are respectively connected with the front wall and the rear wall of the groove; the front part and the back part of the buckle are respectively provided with a bayonet, the bayonet is positioned on one side of the buckle provided with the groove and is communicated with the groove, one side of the buckle top provided with the groove is provided with screw holes in the vertical direction near the front part and the back part, the screw holes penetrate through the top of the buckle and are connected with the bayonet, and the adjusting device is connected with the top of the buckle between the display screen and the groove; the front portion of buckle is connected the pump, the buckle deviates from a side of recess and is equipped with the control room, be equipped with the control panel in the control room.

Through adopting above-mentioned technical scheme, installation device is settled whole hand fixer and is connected through the screw with the both sides of sick bed and at the screw through the bayonet socket on the buckle. The first cross rod is rotatably sleeved with the rotating ring at the end part of the sliding rod, and the included angle between the sliding rod and the mounting device is changed, so that patients suitable for different crowds can keep a fixed posture.

The invention is further provided with: the control panel is electrically connected with the electromagnetic valve, the inflator pump and the pressure sensor.

By adopting the technical scheme, the control board in the control room processes the data of the pressure sensor from the holding device, controls the work of the electromagnetic valve to change the volume of the air bag, and displays the data of the pressure sensor through the display screen.

The invention is further provided with: the adjusting device comprises a first telescopic rod, a second telescopic rod and a connecting piece; one end of the first telescopic rod is connected with the mounting device, a U-shaped opening in the vertical direction is formed in the other end of the first telescopic rod, and a second cross rod is arranged in the U-shaped opening and connected with two walls of the U-shaped opening; the two ends of the second telescopic rod are respectively provided with a hollow columnar rotating ring, the two ends of the second telescopic rod are connected with the side surfaces of the rotating rings, and the second telescopic rod is provided with a limiting piece; the connecting piece is a hollow cylinder, vertical plates are oppositely arranged at the top of the connecting piece, third cross bars are arranged between the vertical plates and are connected with the vertical plates which are oppositely arranged, the connecting piece is provided with positioning holes penetrating through the inner surface and the outer surface of the connecting piece, and sliding pieces are oppositely arranged on the inner surface of the connecting piece; the rotating rings at two ends of the second telescopic rod are respectively sleeved on the second cross rod and the third cross rod.

Through adopting above-mentioned technical scheme, first telescopic link, second telescopic link combined action are adjusted the position of slide bar, make whole hand fixer can be applicable to different crowds. The second telescopic rod is sleeved with the second cross rod of the first telescopic rod through the rotating ring at the end part, the whole adjusting device is rotated to be sleeved with the sliding rod in a sliding mode through the hollow cylindrical connecting piece, and the relative positions of the adjusting device, the mounting device and the sliding rod are not changed through the limiting piece on the second telescopic rod. The locating hole of connecting piece passes through the spacing hole connection of screw and slide bar, carries out spacingly to the position of connecting piece, and the slider of connecting piece internal surface realizes the sliding connection of connecting piece and slide bar in the spout of slide bar, makes the connecting piece can not take place to rotate with the slide bar between.

The invention is further provided with: one end of the sliding rod is provided with a rotating ring, the other end of the sliding rod is provided with a baffle, the surface of the sliding rod is provided with a plurality of limiting holes at equal intervals along the extending direction of the sliding rod, and the limiting holes are symmetrically arranged relative to the central axis of the rotating ring; the limiting hole is provided with a screw, and the locating hole and the limiting hole enable the holding device to be connected with the sliding rod through the screw.

Through adopting above-mentioned technical scheme, the swivel becket that the slide bar tip was established cup joints on first horizontal pole, and the baffle of slide bar tip prevents to hold the device roll-off slide bar and break away from, and the spacing hole that the slide bar was equipped with carries out the fixed of position to holding device and connecting piece through the screw, and the connecting piece can not change with holding device's position when patient uses, leads to the change of the posture of putting of hand.

The invention is further provided with: the sliding rod surface is provided with sliding grooves along the extending direction of the sliding rod, the sliding grooves are symmetrically arranged relative to the central axis of the rotating ring, and the surface of each sliding groove is perpendicular to the surface of each limiting hole.

Through adopting above-mentioned technical scheme, the spout is established on the slide bar surface, and the slider that the connecting piece was equipped with slides in the spout, prevents to take place to rotate between connecting piece and the slide bar.

The invention is further provided with: the inner wall of the sliding cylinder is provided with a sliding piece relatively.

Through adopting above-mentioned technical scheme, establish the slider relatively in the inner wall of slide, slide the position of changing the slide through the slider in the spout of slide bar, prevent that the slide from taking place to rotate relative slide bar of hand when holding.

In summary, the invention has the following beneficial effects: can effectively fix patient's hand, effectively measure the dynamics of patient's hand to can know the tired degree of patient's hand through the demonstration medical personnel of display screen to the dynamics, monitor control pump, solenoid valve to the volume of gasbag through pressure sensor to hand holding power and change in real time, obtain the hand to the patient to fix, avoid patient's hand to remove and pull the shoulder and lead to the error grow, can ensure to put the repeatability unanimously, also increased the travelling comfort in the patient's the treatment simultaneously.

Drawings

FIG. 1 is a schematic view of the overall structure of an embodiment of the present invention;

FIG. 2 is a schematic top view of an embodiment of the mounting device of the present invention;

FIG. 3 is a schematic cross-sectional view of an embodiment of the present invention;

FIG. 4 is a schematic front view of a slide bar according to an embodiment of the present invention;

FIG. 5 is a schematic top view of a slide bar according to an embodiment of the present invention;

FIG. 6 is a schematic cross-sectional view of the slide bar of the embodiment of the present invention taken along line A-A of FIG. 4;

FIG. 7 is a schematic view of a first telescoping rod in accordance with an embodiment of the present invention;

FIG. 8 is a schematic view of a second telescoping rod in accordance with an embodiment of the present invention;

FIG. 9 is a schematic side view of an embodiment of the connector of the present invention;

FIG. 10 is a schematic front view of a connector according to an embodiment of the present invention;

FIG. 11 is a schematic front view of a slide according to an embodiment of the present invention;

FIG. 12 is a schematic side view of a slide according to an embodiment of the invention;

FIG. 13 is a schematic view showing the connection of the holding device and the fixing device according to the embodiment of the present invention;

FIG. 14 is a schematic cross-sectional view of a securing device according to an embodiment of the invention;

FIG. 15 is a schematic view along line B-B in FIG. 13 in accordance with an embodiment of the invention;

in the figure: 1. a mounting device; 2. an adjusting device; 3. a slide bar; 4. a holding device; 5. a fixing device; 6. an inflator pump; 7. an air pipe; 8. a gas transfer port; 9. a screw; 10. a slider; 101. a display screen; 102. a first cross bar; 103. a screw hole; 104. a control room; 105. a buckle; 106. a control board; 107. a bayonet; 201. a first telescopic rod; 202. a second cross bar; 203. a rotating ring; 204. a second telescopic rod; 205. a limiting piece; 206. a vertical plate; 207. a third cross bar; 208. a connecting piece; 209. a U-shaped opening; 301. a limiting hole; 302. a baffle; 303. a chute; 401. a slide cylinder; 402. positioning holes; 403. a grip pad; 404. a pressure sensor; 501. a fixing ring; 502. an air bag; 503. fixing the column; 504. an inflation inlet; 505. an exhaust port; 506. an electromagnetic valve; 507. and (5) connecting a rod.

Detailed Description

The invention is described in further detail below with reference to fig. 1-15.

Examples: a multifunctional hand fixer for radiotherapy, as shown in figures 1-15, comprises a mounting device 1, an adjusting device 2, a sliding rod 3, a holding device 4, a fixing device 5, an inflator pump 6 and an air pipe 7; the adjusting device 2 is fixedly connected to the top of the mounting device, one end of the sliding rod 3 is rotatably connected with the top of the mounting device 1, the adjusting device 2 is in sliding sleeve joint with the sliding rod 3, the holding device 4 is in sleeve joint with the sliding rod 3 and is in sliding connection with the sliding rod 3, the fixing device 5 is fixedly connected with two ends of the holding device 4, the inflator pump 6 is mounted on the side wall of the mounting device 1, and the inflator pump 6 is provided with a gas transmission port 8 and is connected with the fixing device 5 through a gas pipe 7;

the holding device 4 is a sliding cylinder 401 sleeved on the sliding rod 3, and positioning holes 402 penetrating through the cylinder wall are formed in two ends of the sliding cylinder 401; the outer surface of the sliding cylinder 401 is provided with a pressure sensor 404 and a holding pad 403, and the holding pad 403 wraps the outer surface of the sliding cylinder 401; connecting rods 507 are oppositely arranged at two ends of the surface of the sliding cylinder 401;

the fixing device 5 comprises a circular fixing ring 501, an air bag 502 is arranged on the inner wall of the fixing ring 501, hollow fixing columns 503 are symmetrically arranged on the outer wall of the fixing ring 501, one end of a connecting rod 507 is connected with the surface of the sliding cylinder 401, the other end of the connecting rod 507 is connected with the side face of the fixing column 503, a channel is arranged at the joint of the fixing column 503 and the fixing ring 501, the channel penetrates through the annular wall of the fixing ring 501, an air charging port 504 and an air discharging port 505 are arranged on the air bag 502, the air charging port 504 is arranged in one fixing column 503 through the channel, the air discharging port 505 is arranged in the other fixing column 503 through the channel, electromagnetic valves 506 are arranged on the air charging port 504 and the air discharging port 505, and the air charging port 504 is connected with an air conveying port 8 of an air pump 6.

According to the embodiment, the hand fixer is arranged on two sides of a sickbed through the mounting device 1, the position of the sliding rod 3 is adjusted through the adjusting device 2, and the holding device 4 slides on the sliding rod 3 to adjust the holding position of the hand of a patient when the patient is in use, so that the patient can maintain a good treatment posture; the two ends of one side of the sliding cylinder 401, which is away from the set positioning hole 402, are respectively provided with a connecting rod 507, and the holding device 4 is connected with the fixing device 5 through the connecting rods 507. The holding device 4 is held by both hands of a patient, the hands of the patient are fixed through the holding device 4 and the fixing device 5, the holding force of both hands of the patient is detected by the holding device 4 through the pressure sensor 404, the inflator pump 6 inflates the air bag 502 of the fixing device 5 through the air pipe 7, the electromagnetic valve 506 controls the air bag 502 to inflate and deflate, the change of the volume of the air bag 502 is controlled, and the hand fixing posture is kept.

The mounting device 1 comprises a buckle 105, wherein one side of the top of the buckle 105 is arranged on the display screen 101, a groove is formed in the opposite side of the side, provided with the display screen 101, of the buckle 105, a first cross rod 102 is arranged in the groove, and two ends of the first cross rod 102 are respectively connected with the front wall and the rear wall of the groove; the front part and the back part of the buckle 105 are respectively provided with a bayonet 107, the bayonet 107 is positioned on one side of the buckle 105 provided with a groove and is communicated with the groove, one side of the top of the buckle 105 provided with the groove is provided with a screw hole 103 in the vertical direction near the front part and the back part, the screw hole 103 penetrates through the top of the buckle 105 to be connected with the bayonet 107, and the adjusting device 2 is connected with the top of the buckle 105 between the display screen 101 and the groove; the front part of the buckle 105 is connected with the inflator 6, one side surface of the buckle 105, which is away from the groove, is provided with a control chamber 104, and a control board 106 is arranged in the control chamber 104.

With the present embodiment the mounting device 1 is arranged with the entire hand holder on both sides of the hospital bed by means of the bayonet 107 on the clasp 105 and is connected by means of the screw 9 at the screw hole 103. The first cross rod 102 is rotatably sleeved with the rotating ring 203 at the end part of the sliding rod 3, so that the included angle between the sliding rod 3 and the mounting device 1 is changed, and patients suitable for different crowds can keep a fixed posture. The display screen 101 displays the data from the cosmetic pressure sensor processed by the control board 106, so that the medical staff can know the hand condition of the user.

The control board 106 is electrically connected with the solenoid valve 506, the inflator 6, and the pressure sensor 404.

With the present embodiment, the control board 106 in the control room 104 processes the data from the pressure sensor 404 of the holding device 4, and controls the operation of the electromagnetic valve 506 to change the volume of the air bag 502, and displays the data of the pressure sensor 404 through the display screen 101.

The adjusting device 2 comprises a first telescopic rod 201, a second telescopic rod 204 and a connecting piece 208; one end of the first telescopic rod 201 is connected with the mounting device 1, a U-shaped opening 209 in the vertical direction is arranged at the other end of the first telescopic rod 201, and a second cross rod 202 is arranged in the U-shaped opening 209 and connected with two walls of the U-shaped opening 209; the two ends of the second telescopic rod 204 are respectively provided with a hollow columnar rotating ring 203, the two ends of the second telescopic rod 204 are connected with the side surfaces of the rotating rings 203, and the second telescopic rod 204 is provided with a limiting piece 205; the connecting piece 208 is a hollow cylinder, the top of the connecting piece 208 is provided with vertical plates 206 oppositely, third transverse rods 207 are arranged between the vertical plates 206 to connect the vertical plates 206 oppositely, the connecting piece 208 is provided with positioning holes 402 penetrating through the inner surface and the outer surface of the connecting piece 208, and the inner surface of the connecting piece 208 is provided with sliding pieces 10 oppositely; the rotating rings 203 at the two ends of the second telescopic rod 204 are respectively sleeved on the second cross rod 202 and the third cross rod 207.

Through this embodiment, the first telescopic link 201 and the second telescopic link 204 cooperate to adjust the position of the sliding rod 3, so that the whole hand fixer can be suitable for different people. The second telescopic rod 204 is sleeved with the second cross rod 202 of the first telescopic rod 201 through the rotating ring 203 at the end part, and the second telescopic rod is rotated. The whole adjusting device 2 is in sliding sleeve joint with the sliding rod 3 through the hollow cylindrical connecting piece 208, and the relative positions of the adjusting device 2, the mounting device 1 and the sliding rod 3 are not changed through the limiting piece 205 on the second telescopic rod 204. The positioning hole 402 of the connecting piece 208 is connected with the limiting hole 301 of the sliding rod 3 through the screw 9, the position of the connecting piece 208 is limited, the sliding piece 10 on the inner surface of the connecting piece 208 realizes sliding connection between the connecting piece 208 and the sliding rod 3 in the sliding groove 303 of the sliding rod 3, and the connecting piece 208 cannot rotate with the sliding rod 3.

One end of the sliding rod 3 is provided with a rotating ring 203, the other end of the sliding rod 3 is provided with a baffle 302, a plurality of limiting holes 301 along the extending direction of the sliding rod 3 are arranged on the surface of the sliding rod 3 at equal intervals, and the limiting holes 301 are symmetrically arranged relative to the central axis of the rotating ring 203; the limit hole 301 is provided with a screw 9, and the locating hole 402 and the limit hole 301 connect the holding device 4 with the sliding rod 3 through the screw 9.

Through this embodiment, the rotating ring 203 provided at the end of the sliding rod 3 is sleeved on the first cross bar 102, the baffle 302 at the end of the sliding rod 3 prevents the holding device 4 from sliding out of the sliding rod 3 and separating from the sliding rod 3, the limiting hole 301 provided in the sliding rod 3 fixes the positions of the holding device 4 and the connecting piece 208 through the screw 9, and when the patient uses, the positions of the connecting piece 208 and the holding device 4 are not changed, so that the placing posture of the hand is changed.

The sliding rod 3 is provided with a sliding groove 303 along the extending direction of the sliding rod 3, the sliding groove 303 is symmetrically arranged about the central axis of the rotating ring 203, and the surface of the sliding groove 303 is perpendicular to the surface of the limiting hole 301.

By this embodiment, the sliding groove 303 is formed on the surface of the sliding rod 3, and the sliding member 10 provided on the connecting member 208 slides in the sliding groove 303, so that the connecting member 208 is prevented from rotating with the sliding rod 3.

The inner wall of the slide cylinder 401 is provided with a slider 10.

With the present embodiment, the sliding member 10 is disposed on the inner wall of the sliding barrel 401, and the sliding member 10 slides in the sliding groove 303 of the sliding rod 3 to change the position of the sliding barrel 401, so as to prevent the sliding barrel 401 from rotating relative to the sliding rod 3 when the hand is held.

Working principle: when the device is used, the hand fixer is arranged at two sides of a sickbed through the bayonet 107 of the buckle 105 of the mounting device 1, and two hands of a patient pass through the fixing device 5 to hold the sliding cylinder 401 of the holding device 4. By adjusting the lengths of the first and second

telescopic links

201 and 204, the positions of the connecting

members

208 and 401 for the patient to hold and hold are determined on the slide bar 3 by the sliding connecting

members

208 and 401, the connecting

members

208 and 401 are limited by the screws 9, and the length of the telescopic links is kept constant by adjusting the limiting members 205. The holding device 4 is held by both hands, the pressure sensor 404 measures the grip strength of both hands of a patient, measured data are transmitted to the control board 106, the control board 106 processes the data, the data are displayed through the display screen 101, the control board 106 controls the inflator pump 6 and the electromagnetic valve 506 to inflate and deflate the air bag 502 according to the measured grip strength, both hands of the patient are separated from the sliding cylinder 401 of the holding device 4, the air bag 502 is completely inflated, and the fixing device 5 fixes the hands of the patient through the completely inflated air bag 502, so that the patient can keep the original action.

The present embodiment is only for explanation of the present invention and is not to be construed as limiting the present invention, and modifications to the present embodiment, which may not creatively contribute to the present invention as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present invention.

Claims

1. A multifunctional hand fixer for radiotherapy, which is characterized in that: comprises a mounting device (1), an adjusting device (2), a sliding rod (3), a holding device (4), a fixing device (5), an inflator pump (6) and an air pipe (7); the adjusting device (2) is fixedly connected to the top of the mounting device (1), one end of the sliding rod (3) is rotatably connected with the top of the mounting device (1), the adjusting device (2) is in sliding sleeve connection with the sliding rod (3), the holding device (4) is in sleeve connection with the sliding rod (3) in sliding connection with the sliding rod (3), the fixing device (5) is fixedly connected with the two ends of the holding device (4), the inflator pump (6) is mounted on the side wall of the mounting device (1), and the inflator pump (6) is provided with a gas conveying port (8) and is connected with the fixing device (5) through a gas pipe (7);

the holding device (4) is a sliding cylinder (401) sleeved on the sliding rod (3), and positioning holes (402) penetrating through the cylinder wall are formed in two ends of the sliding cylinder (401); the outer surface of the sliding cylinder (401) is provided with a pressure sensor (404) and a holding pad (403), and the holding pad (403) wraps the outer surface of the sliding cylinder (401); connecting rods (507) are oppositely arranged at two ends of the surface of the sliding cylinder (401);

the fixing device (5) comprises a circular fixing ring (501), an air bag (502) is arranged on the inner wall of the fixing ring (501), hollow fixing columns (503) are symmetrically arranged on the outer wall of the fixing ring (501), one end of a connecting rod (507) is connected with the surface of a sliding cylinder (401), the other end of the connecting rod (507) is connected with the side face of the fixing column (503), a channel is arranged at the connecting position of the fixing column (503) and the fixing ring (501), the channel penetrates through the annular wall of the fixing ring (501), the air bag (502) is provided with an air charging port (504) and an air discharging port (505), the air charging port (504) is arranged in one fixing column (503) through the channel, the air discharging port (505) is arranged in the other fixing column (503) through the channel, electromagnetic valves (506) are respectively arranged on the air charging port (504) and the air conveying port (8) of the air charging pump (6);

the adjusting device (2) comprises a first telescopic rod (201), a second telescopic rod (204) and a connecting piece (208); one end of the first telescopic rod (201) is connected with the mounting device (1), a U-shaped opening (209) in the vertical direction is formed in the other end of the first telescopic rod (201), and a second cross rod (202) is arranged in the U-shaped opening (209) and is connected with two walls of the U-shaped opening (209); the two ends of the second telescopic rod (204) are respectively provided with a hollow columnar rotating ring (203), the two ends of the second telescopic rod (204) are connected with the side surfaces of the rotating rings (203), and the second telescopic rod (204) is provided with a limiting piece (205); the connecting piece (208) is a hollow cylinder, vertical plates (206) are oppositely arranged at the top of the connecting piece (208), third transverse rods (207) are arranged between the vertical plates (206) and are connected with the vertical plates (206) which are oppositely arranged, the connecting piece (208) is provided with positioning holes (402) penetrating through the inner surface and the outer surface of the connecting piece (208), and sliding pieces (10) are oppositely arranged on the inner surface of the connecting piece (208); the rotating rings (203) at two ends of the second telescopic rod (204) are respectively sleeved on the second transverse rod (202) and the third transverse rod (207).

2. A multi-functional hand fixator for radiation therapy as claimed in claim 1 wherein: the mounting device (1) comprises a buckle (105), wherein one side of the top of the buckle (105) is arranged on the display screen (101), a groove is formed in the opposite side of the buckle (105) to the side of the display screen (101), a first cross rod (102) is arranged in the groove, and two ends of the first cross rod (102) are respectively connected with the front wall and the rear wall of the groove; the front part and the back part of the buckle (105) are respectively provided with a bayonet (107), the bayonet (107) is positioned at one side of the buckle (105) provided with a groove and is communicated with the groove, one side of the top of the buckle (105) provided with the groove is provided with a screw hole (103) in the vertical direction near the front part and the back part, the screw hole (103) penetrates through the top of the buckle (105) to be connected with the bayonet (107), and the adjusting device (2) is connected with the top of the buckle (105) between the display screen (101) and the groove; the front part of the buckle (105) is connected with the inflator pump (6), one side surface of the buckle (105) deviating from the groove is provided with a control chamber (104), and a control board (106) is arranged in the control chamber (104).

3. A multi-functional hand fixator for radiation therapy as claimed in claim 2 wherein: the control panel (106) is electrically connected with the electromagnetic valve (506), the inflator pump (6) and the pressure sensor (404).

4. A multi-functional hand fixator for radiation therapy as claimed in claim 1 wherein: one end of the sliding rod (3) is provided with a rotating ring (203), the other end of the sliding rod (3) is provided with a baffle plate (302), a plurality of limiting holes (301) along the extending direction of the sliding rod (3) are formed on the surface of the sliding rod (3) at equal intervals, and the limiting holes (301) are symmetrically arranged relative to the central axis of the rotating ring (203); the limiting hole (301) is provided with a screw (9), and the locating hole (402) and the limiting hole (301) enable the holding device (4) to be connected with the sliding rod (3) through the screw (9).

5. A multi-functional hand fixator for radiation therapy as claimed in claim 1 wherein: the sliding rod (3) is provided with a sliding groove (303) on the surface along the extending direction of the sliding rod (3), the sliding groove (303) is symmetrically arranged about the central axis of the rotating ring (203), and the surface of the sliding groove (303) is perpendicular to the surface of the limiting hole (301).

6. A multi-functional hand fixator for radiation therapy as claimed in claim 1 wherein: the inner wall of the sliding barrel (401) is provided with a sliding piece (10) relatively.