Body position fixing device for thoracic and abdominal tumor radiotherapy

Abstract

The utility model relates to the technical field of medical instruments, in particular to a thoracic and abdominal tumor radiotherapy body position fixing device which comprises a base and further comprises two angle-adjustable arm supporting devices arranged on the base, and the arm supporting devices are used for supporting arms after the two hands hold the rear neck; a baffle for limiting the feet of a patient is movably arranged on the base; according to the utility model, the arm supporting device is arranged, so that a patient can keep the position that both hands are held on the rear neck during radiotherapy, the treatment efficiency is improved, the comfort of the patient during treatment is enhanced, and meanwhile, the patient is prevented from unconsciously sliding through the baffle plate, so that the positioning error is reduced, and the positioning repeatability is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical appliance technical field especially, relate to a chest and abdomen tumor radiotherapy body position fixing device. BACKGROUND

[0002] Tumor radiotherapy is a kind of local treatment method using radiotherapy to treat tumor, and the role and position of radiotherapy in tumor treatment are increasingly prominent, and it has become one of the main means for treating malignant tumor, in order to realize accurate irradiation, people have designed many fixing devices, such as base ring, mask, vacuum fixing pad, pleura etc., the purpose is to limit the arbitrary movement of human body as much as possible, guarantee the high repeatability and consistency of body surface positioning mark, to realize accurate positioning, but part of patients due to age is larger and leads to when lying down, leg cannot be fully stretched, and part of old people cannot cross the elbow and place on forehead, it is easy to move, and the patient with humpback is also difficult to keep still when lying down, and then it is more inconvenient when positioning, and it is more difficult to fix the body position of patient.

[0003] For the above problems, the patent number CN219481350U discloses a chest and abdomen tumor radiotherapy body position fixing device, including base, the top of base is fixedly installed with the receiving plate, the base is provided with adjusting assembly, adjusting assembly includes connecting frame, output cylinder one, transmission belt one, transmission rod, transmission belt two, output motor, connecting plate, arc block, mounting plate, output cylinder two, top plate and elastic cloth, the receiving plate is provided with mounting hole one, the receiving plate is arranged in mounting hole one, one end of connecting frame is fixedly installed on the outer side wall of receiving plate, the chest and abdomen tumor radiotherapy body position fixing device can support the double legs of patient who cannot stretch straight, can be convenient for patient to fix the body position, can be accepted by the humpback area of its back through elastic cloth, and then the humpback area can be sunk into mounting hole two, and then the humpback patient can keep the body position on the utility model, and the purpose of fixing patient can be achieved, and the operation is simple.

[0004] But the thoracic and abdominal tumor radiotherapy position fixing device still has the following problems in the process of using: 1. The head and neck shoulder thermoplastic film fixing technology is often used in clinic, which can effectively reduce the position error between fractions and improve the accuracy of radiotherapy. However, when using the thoracic and abdominal tumor radiotherapy position fixing device and the thermoplastic film technology, the shoulders of some patients are too wide, and when the thermoplastic film is made by placing the hands on both sides, the thermoplastic film is often stretched too large, and the clamping strip is not easy to be buckled in the clamping groove, sometimes even the arms of the patient are clamped, the thermoplastic film is soft when making, and the problem is more prominent after the thermoplastic film becomes hard during treatment, and the middle of the arm is clamped in the middle of the thermoplastic film, and cannot be naturally placed on the treatment bed, the position is difficult to repeat every time, the position of the hand is easy to change between single treatments, in addition, the unfixed lower arm of the patient will cause the uncertainty of the position every time. SUMMARY

[0005] In view of the above problems, the thoracic and abdominal tumor radiotherapy position fixing device is provided to at least solve the problems that the thoracic and abdominal tumor radiotherapy position fixing device in the prior art cannot fix the hands and cannot avoid the unconscious sliding of the patient.

[0006] The main idea of the technical solution adopted by the utility model is:

[0007] The thoracic and abdominal tumor radiotherapy position fixing device is designed, which comprises a base, an arm supporting device and a baffle. The patient lies on the base and holds the hands behind the neck to adjust to the most comfortable state. The arm supporting device provides support for the patient's upper arm to avoid arm soreness. The arm supporting device can not only adjust the angle, but also record the angle of each rotation to adjust to the same angle next time. The baffle is slidingly connected to the base. The patient's feet are abutted by the baffle to avoid the thoracic and abdominal irradiation error caused by the unconscious sliding of the patient. The position of the baffle and the patient is also convenient for recording to avoid the change of the position of the baffle next time.

[0008] To achieve the above purpose, the utility model adopts the technical scheme for solving the technical problems:

[0009] A thoracic and abdominal tumor radiotherapy position fixing device is designed, which comprises a base, and further comprises two angle-adjustable arm supporting devices arranged on the base. The arm supporting device is used for supporting the arm behind the neck when the hands are held.

[0010] The base further movably has a baffle for limiting the patient's feet.

[0011] Further, the base top is provided with two notches, and the two arm supporting devices are connected in the notches and extend out of the notches.

[0012] Further, the arm supporting device comprises a ratchet wheel, a pawl matched with the ratchet wheel and a supporting plate.

[0013] The ratchet wheel and the pawl are rotationally connected in the notch.

[0014] The supporting plate is connected with the ratchet wheel and located outside the notch.

[0015] Further, the pawl is connected with an adjusting rod extending out of the notch, and the adjusting rod is used for adjusting the angle of the supporting plate.

[0016] Further, two sliding blocks are slidingly connected in the notch, and the sliding block away from the center of the base is rotationally connected with a screw rod.

[0017] The arm supporting device is rotationally connected between the two sliding blocks.

[0018] Further, the baffle is rotationally connected with a positioning piece on both sides, and the base is provided with a plurality of positioning blocks matched with the positioning piece.

[0019] Further, the base top is provided with a headrest.

[0020] The beneficial effects of the utility model are that, compared with the prior art, the improvement of the utility model lies in,

[0021] The arm supporting device is set, so that the hot plastic film is not easily stretched too large when the patient's shoulders are too wide and the hands are placed on both sides, the middle of the arm is not clamped in the middle of the hot plastic film, and the position is difficult to repeat during each treatment, the treatment efficiency is improved, and the positioning error is reduced.

[0022] The arm supporting device is set, so that the patient's arm is lifted for convenient axillary irradiation treatment, the patient's arms are provided with a fixed angle and a supporting force due to the double-hand back-neck shape of the patient, and the comfort of the patient during treatment is improved.

[0023] The baffle is set, so that the chest and abdomen irradiation error caused by the patient's sliding out of the base is avoided, the normal tissue is not damaged due to the irradiation error, the treatment precision and the tumor control rate are improved. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 A structure diagram of a chest and abdomen tumor radiotherapy body position fixing device is provided.

[0025] Figure 2 Structure diagram of the base according to the utility model;

[0026] Figure 3 Connection diagram of the support plate and the ratchet according to the utility model;

[0027] Figure 4 Structure diagram of the arm support device according to the utility model;

[0028] Figure 5 Structure diagram of the arm support device placed in the notch according to the utility model;

[0029] Figure 6 Structure diagram of the baffle according to the utility model;

[0030] Figure 7 Structure diagram of the embodiment 3 according to the utility model.

[0031] Among them, the above-mentioned drawings include the following drawing marks:

[0032] 10, base; 11, notch; 111, first rotating shaft; 112, second rotating shaft; 113, sliding block; 114, screw rod; 12, positioning block; 20, ratchet wheel; 21, support plate; 22, support rod; 23, connecting rod; 24, first through hole; 25, pawl; 26, second through hole; 27, adjusting rod; 28, torsional spring; 30, baffle; 31, positioning piece; 32, clamping piece; 33, rotating piece; 40, headrest. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments, not all the embodiments.

[0034] In the description of the utility model, it is understood that the terms "front", "back", "left", "right", "up", "down", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the utility model. Embodiment 1

[0035] As Figure 1As shown in the application, the chest and abdominal tumor radiotherapy position fixing device comprises a base 10, further comprising two arm supporting devices arranged on the base 10, which are used for supporting the arms of the patient who holds the back of the neck with both hands. The device can not only avoid the problem that the thermoplastic film is easily stretched too large when the patient with wide shoulders places both hands on the sides to make the thermoplastic film, but also avoid the problem that the middle part of the arm is clamped in the middle of the thermoplastic film and cannot be naturally placed on the treatment bed. The device can improve the treatment efficiency and reduce the positioning error. In addition, the arm supporting device not only lifts the patient's arms for axillary irradiation treatment, but also provides a fixed angle and support force for the patient's arms due to the patient holding the back of the neck with both hands, thereby improving the comfort of the patient during treatment.

[0036] Further, as shown in the application, Figure 2 The base 10 is provided with two notches 11 at the top, and the two arm supporting devices are connected to the two notches 11 and extend out of the notches 11.

[0037] Further, as shown in the application, Figure 3 and Figure 4 The arm supporting device comprises a ratchet wheel 20, a pawl 25 matched with the ratchet wheel 20, and a support plate 21. The bottom end of the support plate 21 is connected with two supporting rods 22, and a connecting rod 23 is arranged between the two supporting rods 22. The center of the ratchet wheel 20 is provided with a through hole, the outer diameter of the connecting rod 23 matches the through hole in the center of the ratchet wheel 20, the connecting rod 23 is sleeved in the through hole in the center of the ratchet wheel 20 and is in interference fit, that is, the connecting rod 23 does not move relative to the ratchet wheel 20. The height of the support plate 21 is increased by the two supporting rods 22, which is convenient for receiving the patient's arms. The first through hole 24 is arranged between the connecting rods 23, and the first through hole 24 is matched with the first rotating shaft 111 arranged in the notch 11. The connecting rod 23 and the ratchet wheel 20 and the supporting rod 22 connected thereto are rotationally connected in the notch 11 through the first rotating shaft 111, so that the support plate 21 can be rotated. The pawl 25 is also rotationally connected in the notch 11. The second through hole 26 is arranged on the pawl 25, and the second through hole 26 is matched with the second rotating shaft 112 arranged in the notch 11. The pawl 25 is rotationally connected in the notch 11 through the second rotating shaft 112.

[0038] Further, as shown in the application, Figure 4 and Figure 5As shown, the pawl 25 is connected with an adjusting rod 27 extending out of the notch 11, facilitating medical staff to adjust the angle of the support plate 21; the pawl 25 is connected with a torsional spring 28 on one side, and the other end of the torsional spring 28 is connected with the inner wall of the notch 11, so as to ensure that the elastic deformation of the torsional spring 28 can provide a stable force for the pawl 25, so that the pawl 25 can be closely attached to the tooth groove of the ratchet wheel 20; after the adjusting rod 27 is pulled to the right, the adjusting rod 27 drives the pawl 25, and the pawl 25 drives the ratchet wheel 20 to rotate, at this time the ratchet wheel 20 drives the connecting rod 23 and the two support rods 22 connected therewith to rotate, and finally realizes the rotation of the two support rods 22 driving the support plate 21 connected at the top thereof to rotate.

[0039] Further, the base 10 is slidably connected with a baffle 30 for preventing the patient from being displaced unconsciously.

[0040] Further, as shown, Figure 6 The baffle 30 is provided with a rotating piece 33 on both sides, the rotating piece 33 is provided with a through hole inside, the top of the positioning piece 31 is provided with a rotating shaft matched therewith, so that the positioning piece 31 is rotationally connected, and the base 10 is provided with a plurality of positioning blocks 12 matched with the bottom of the positioning piece 31, when the baffle 30 is slid to a suitable position, the baffle 30 is locked in position through the cooperation of the positioning piece 31 and the positioning block 12.

[0041] Further, in order to further improve the comfort of the patient, the top of the base 10 is provided with a headrest 40, and the bottom of the headrest 40 is connected with an electric telescopic rod, the height of the headrest 40 is adjusted through the electric telescopic rod, so as to adapt to the needs of different patients. Embodiment 2

[0042] On the basis of embodiment one, in order to avoid the positioning piece 31 from being inadvertently matched with the positioning piece 31 when adjusting the position of the baffle 30, resulting in the baffle 30 being unable to move, further, the baffle 30 is provided with a clamping piece 32 matched with the positioning piece 31 on both sides, when adjusting the position of the baffle 30, the positioning piece 31 is turned upward and clamped with the clamping piece 32, avoiding the positioning piece 31 from affecting the position adjustment of the baffle 30, and after the position of the baffle 30 is determined, the positioning piece 31 is turned downward and matched with the corresponding positioning block 12 to be locked. Embodiment 3

[0043] On the basis of embodiment one, in order to avoid the position of the arm support device not matching the position of the patient's upper arm due to too large difference in patient's body type, further, as shown, Figure 7As shown, two sliding blocks 113 are slidingly connected in the notch 11, and can slide along the direction of the notch 11, but cannot rotate in the notch 11. The first rotating shaft 111 and the second rotating shaft 112 are fixedly connected between the two sliding blocks 113, the ratchet 20 and the pawl 25 are respectively rotatably connected to the first rotating shaft 111 and the second rotating shaft 112, and the sliding block 113 away from the center of the base 10 is rotatably connected with a screw rod 114, the screw rod 114 penetrates through the side of the base 10, and the base 10 is provided with a thread matched with the screw rod 114. When it is necessary to adjust the position of the arm support device on the base 10, the screw rod 114 is rotated, and the sliding block 113 is driven to move along the short axis direction of the base 10, so as to adjust the position of the entire arm support device.

[0044] The specific operation of the chest and abdominal tumor radiotherapy body position fixing device in the utility model in use is as follows:

[0045] The patient lies on the base 10 and rests the head on the headrest 40, then the patient holds the hands on the back of the neck, the medical staff pulls the adjusting rod 27, the adjusting rod 27 drives the pawl 25, the pawl 25 drives the ratchet 20 to rotate, at this time the ratchet 20 drives the connecting rod 23 and the two supporting rods 22 connected therewith to rotate, finally realizes that the two supporting rods 22 drive the supporting plate 21 connected at the top thereof to rotate, rotates the supporting plate 21 to be combined with the patient's upper arm, provides the supporting force for the patient's upper arm, at this time records which tooth groove of the ratchet 20 is combined with the pawl 25 in order to use the patient next time. Finally, the positioning piece 31 is rotated upwards and is clamped with the clamping piece 32, so as to avoid that the positioning piece 31 affects the position adjustment of the baffle 30, after the baffle 30 is slid to abut against the bottom of the patient's foot, the positioning piece 31 is rotated downwards and is locked with the corresponding positioning block 12, and at the same time, the positioning block 12 matched with the positioning piece 31 is recorded, so as to be adjusted to the same position next time. If it is necessary to adjust the position of the arm support device on the base 10, at this time the screw rod 114 is rotated, the sliding block 113 is driven to move along the short axis direction of the base 10, so as to adjust the position of the entire arm support device to adapt to the position of the patient's upper arm.

[0046] The above only describes the preferred embodiments of the utility model, and is not used to limit the utility model. For those skilled in the art, the utility model can be variously changed and varied. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A positioning device for radiotherapy of thoracic and abdominal tumors, comprising: The base (10) is characterized in that it further includes: two angle-adjustable arm support devices disposed on the base (10), the arm support devices being used to support the arms that hold the back of the neck with both hands; The base (10) is also movably provided with a baffle (30) for limiting the patient's foot.

2. The body positioning device for radiotherapy of thoracic and abdominal tumors according to claim 1, characterized in that, The base (10) has two slots (11) on its top, and the two arm support devices are respectively connected to the two slots (11) and extend to the outside of the slots (11).

3. The body positioning device for radiotherapy of thoracic and abdominal tumors according to claim 2, characterized in that, The arm support device includes: a ratchet (20), a pawl (25) that cooperates with the ratchet (20), and a support plate (21); Both the ratchet (20) and the pawl (25) are rotatably connected within the slot (11); The support plate (21) is connected to the ratchet (20) and is located outside the slot (11).

4. The body positioning device for radiotherapy of thoracic and abdominal tumors according to claim 3, characterized in that, An adjusting rod (27) extending out of the slot (11) is connected to the pawl (25), and the adjusting rod (27) is used to adjust the angle of the support plate (21).

5. The body positioning device for radiotherapy of thoracic and abdominal tumors according to claim 3, characterized in that, Two sliders (113) are slidably connected inside the slot (11), and a screw (114) is rotatably connected to the sliders (113) away from the center of the base (10). The arm support device is rotatably connected between the two sliders (113).

6. The body positioning device for radiotherapy of thoracic and abdominal tumors according to claim 1, characterized in that, The baffle (30) is rotatably connected to the two sides of the baffle (30), and the base (10) is provided with a plurality of positioning blocks (12) that match the positioning elements (31) on both sides.

7. The body positioning device for radiotherapy of thoracic and abdominal tumors according to claim 1, characterized in that, A headrest (40) is provided on the top of the base (10).

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