Head fixing mechanism for X-ray shooting machine supporting bed in radiology department

Abstract

The invention belongs to the technical field of medical instrument assistance, and discloses a head fixing mechanism for a radiology department X-ray radiography machine supporting bed, which comprises an X-ray machine and a supporting bed. Through cooperation of the structures, a limiting ring is turned over and pulled to be attached to the lower jaw of a patient, a first telescopic air cylinder stretches and sucks air in a first notch, a sealing plate is moved through negative pressure, the sealing plate pushes a guide plate and a push guide plate to be turned over through a push rod, an extrusion plate gradually touches and fixes the head of the patient, and the limiting ring is pulled; when the lower jaw is fixed by the limiting ring and the pushing and guiding plate continues to be folded, the third spring piece is bent, so that the head of the patient is not injured, and when the head of the patient shakes, the multiple positioning assemblies limit the head of the patient at the same time; friction force generated by the scalp and the extrusion plate forces the scalp to drive the guide plate and the push guide plate to turn over and pull the push rod and the sealing plate, the sealing plate is limited by the first notch, so that the head of a patient is difficult to move, and artifacts are reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of medical device assistance, in particular to a head fixing mechanism for a supporting bed of an X-ray film machine in a radiology department. Background Art

[0002] Radiology X-ray machines, usually referred to as X-ray machines or X-ray machines, are widely used imaging diagnostic equipment in the medical field. They are usually composed of two parts: a film bed and an X-ray machine. The film bed can be understood as a support bed. During the filming process, the patient usually lies on the film bed, and the doctor will also ask the patient to keep the body relatively still to avoid artifacts in the image and reduce the image quality. Similarly, artifacts will also cause doctors to cover up lesions, misdiagnose, and miss diagnoses during subsequent image examinations.

[0003] It is particularly important to note that due to people's instinctive fear of unknown things, during the filming process, when the X-ray is irradiated to the eyes, the patient's head will swing slightly more frequently, which will increase the probability of artifact formation. However, most of the filming beds in the existing technical solutions are not equipped with an effective mechanism to fix the patient's head, which will increase the appearance of artifacts in the later images in the same proportion and reduce the quality of the X-ray film. For this reason, we provide a head fixing mechanism for the support bed of the radiology X-ray film machine. Summary of the invention

[0004] In order to solve the problems raised in the above-mentioned background technology, the present invention provides a head fixing mechanism for a support bed of a radiology X-ray film machine, which solves the problem that most of the film beds in the existing technology solutions are not equipped with an effective mechanism to fix the patient's head, and the patient's head swings slightly more frequently, increasing the probability of artifact formation.

[0005] To achieve the above object, the present invention provides the following technical solution: a head fixing mechanism for a support bed of an X-ray film machine in a radiology department, comprising an X-ray machine and a support bed, and further comprising;

[0006] A base mounted on the top of the supporting bed;

[0007] A carrying ring is arranged on the base, the carrying ring is semicircular, and a plurality of first notches arranged at equal angles in a circular direction are formed inside the carrying ring;

[0008] A plurality of positioning components mounted on the bearing ring at equal angles in the annular direction;

[0009] A limit assembly installed on the side of the load-bearing ring;

[0010] The positioning assembly comprises a guide plate hinged to the lower end of the inner wall of the carrying ring, a push plate hinged to the upper end of the inner wall of the carrying ring, the top of the guide plate slides on the push plate, the bottom of the push plate is elastically connected to an extrusion plate through a spring sheet, the middle of the extrusion plate is hinged to the bottom of the push plate, a sealing plate is slidably installed inside the first notch, and the side of the sealing plate slides on the side of the guide plate through a push rod;

[0011] The first notches are connected to each other;

[0012] The limit assembly comprises two telescopic cylinders 1 connected to the first notch, a tension spring is arranged inside the telescopic cylinders 1, and the tops of the two telescopic cylinders 1 are hinged to a limit ring;

[0013] The head fixing mechanism for the supporting bed of the radiology X-ray film machine also includes a buffer component and an air extraction component installed on the buffer component.

[0014] Preferably, the positioning assembly further comprises a rubber layer adhered to the side surface of the extrusion plate, and each of the first notches is sealed with the sealing plate.

[0015] Preferably, the limiting ring is in an arc shape and a rubber block is arranged in the middle, the telescopic end of the telescopic cylinder 1 is slidably mounted on the top of the base, and the two telescopic cylinders 1 are respectively arranged at the two ends of the bearing ring.

[0016] Preferably, the limit assembly also includes a limit plate elastically connected to the side of the telescopic end of the telescopic cylinder through a spring sheet, the limit plate is slidably installed on the side of the telescopic end of the telescopic cylinder, and a limit rod is installed on the outer side of the limit ring which always contacts the top of the limit plate.

[0017] Preferably, the buffer assembly includes a base, the top of the base is connected to a bellows, the interior of the bellows is connected to a plurality of air cylinders, the interior of each air cylinder is elastically connected to a closing plate via a spring, and the side of the air cylinder is connected to a telescopic plate.

[0018] Preferably, the positioning assembly also includes a second slot opened at the bottom of the sealing plate, and the inside of the first slot is also provided with a second slot that passes through the bottom of the carrying ring, the second slot is adapted to the telescopic end of the telescopic plate, and the telescopic end of the telescopic plate is always located inside the second slot on the first slot.

[0019] Preferably, the vacuum assembly comprises a second telescopic cylinder installed inside the base and connected to the inside of the bellows, and a handle is fixedly mounted on the telescopic end of the second telescopic cylinder.

[0020] Preferably, the handle is in an arc shape, and the side surface of the handle is elastically connected to the side surface of the base via two symmetrically arranged spring sheets.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The present invention folds and pulls the limiting ring to fit the patient's lower jaw through the coordination of the arrangement and other structures. The telescopic cylinder extends and sucks the air inside the first notch, and the negative pressure moves the sealing plate. The sealing plate pushes the guide plate and the pushing plate to fold through the push rod, and the extrusion plate gradually touches and fixes the patient's head, pulling the limiting ring until the lower jaw is fixed by the limiting ring. When the pushing plate continues to fold, the spring sheet bends three times, thereby not damaging the patient's head. When the patient's head shakes, several positioning components simultaneously limit the patient's head. When the patient wants to get up, the friction generated by his scalp and the extrusion plate will force him to drive the guide plate and the pushing plate to fold and pull the push rod and the sealing plate. Since the first notch limits the sealing plate, it will be difficult for the patient to move his head, thereby reducing the generation of artifacts.

[0023] The present invention arranges the coordination of structures such as the positioning component and the limiting component. When the positioning component performs the fixing work, the rubber layer will preferentially contact the patient's head. At this time, the extrusion plate provides support force for the fixing work, and the toughness of the rubber layer helps the device not to damage the patient's head, thereby further improving the comfort of the device when used; when the limiting ring is folded and fits against the patient's mandible, in order to prevent the limiting ring from falling off the mandible and crushing the patient's throat, the spring sheet 1 still supports the bottom of the limiting rod through the limiting plate, so that the limiting ring will not be excessively folded, thereby further protecting the patient.

[0024] The present invention provides a buffer component and a positioning component and other structures, so that the patient's head contacts and squeezes the air in the bellows into the cylinder first, pushes the closing plate to compress the spring, and the bellows provides toughness for a longer time, buffers the impact of the patient lying down, and improves the patient's comfort. The air in the cylinder enters the telescopic plate and forces it to stretch. When the positioning component fixes the patient's head, the second notch on the sealing plate and the second notch in the first notch will overlap, and the telescopic end of the telescopic plate will eventually penetrate the two second notches at the same time. At this time, the telescopic end of the telescopic cylinder is difficult to retract and forces the air inside it to enter the first notch, and the positioning component is also in a fixed state, thereby reducing the formation of artifacts while also improving the stability of the device. While reducing the formation of artifacts, the stability of the device is also improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the appearance structure of the present invention;

[0026] Figure 2 It is a schematic diagram of the base and the top structure of the present invention;

[0027] Figure 3 This is a schematic diagram of the second working position of the limit ring of the present invention;

[0028] Figure 4 For the present invention Figure 3 The enlarged schematic diagram at A in the middle;

[0029] Figure 5 For the present invention Figure 3 The enlarged schematic diagram of point B in the middle;

[0030] Figure 6 It is a schematic diagram of the internal structure of the carrying ring and the telescopic cylinder of the present invention;

[0031] Figure 7 This is a schematic diagram of the internal structure of the buffer component and the working coordination of the positioning component of the present invention;

[0032] Figure 8 It is a schematic diagram of the structural coordination between the buffer component and the positioning component of the present invention.

[0033] In the figure: 1. X-ray machine; 2. Support bed; 3. Base; 4. Loading ring; 41. First notch; 5. Limiting assembly; 51. Telescopic cylinder one; 52. Limiting ring; 53. Tension spring; 54. Spring sheet one; 55. Limiting plate; 56. Limiting rod; 6. Buffering assembly; 61. Base; 62. Bellows; 63. Air cylinder; 64. Telescopic plate; 65. Spring; 66. Closing plate; 7. Vacuum assembly; 71. Telescopic cylinder two; 72. Handle; 73. Spring sheet two; 8. Positioning assembly; 81. Guide plate; 82. Pushing plate; 83. Extrusion plate; 84. Rubber layer; 85. Spring sheet three; 86. Sealing plate; 87. Push rod; 88. Second notch. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] like Figures 1 to 8 As shown, the present invention provides a head fixing mechanism for a support bed of a radiology X-ray film machine, comprising an X-ray machine 1 and a support bed 2, and further comprising;

[0036] A base 3 mounted on the top of the support bed 2;

[0037] A carrying ring 4 is disposed on the base 3, and the carrying ring 4 is semicircular, and a plurality of first notches 41 arranged at equal angles in a circular direction are formed inside the carrying ring 4;

[0038] A plurality of positioning components 8 are mounted on the carrying ring 4 at equal angles in an annular direction;

[0039] A limiting assembly 5 installed on the side of the carrying ring 4;

[0040] The positioning assembly 8 includes a guide plate 81 hinged to the lower end of the inner wall of the carrying ring 4, a push plate 82 is hinged to the upper end of the inner wall of the carrying ring 4, the top of the guide plate 81 slides on the push plate 82, the bottom of the push plate 82 is elastically connected to the extrusion plate 83 through a spring sheet 85, the middle of the extrusion plate 83 is hinged to the bottom of the push plate 82, a sealing plate 86 is slidably installed inside the first notch 41, and the side of the sealing plate 86 slides on the side of the guide plate 81 through a push rod 87;

[0041] The first slots 41 are connected to each other;

[0042] The limiting assembly 5 includes two telescopic cylinders 51 connected to the first notch 41, a tension spring 53 is arranged inside the telescopic cylinder 51, and the tops of the two telescopic cylinders 51 are hinged to a limiting ring 52;

[0043] The head fixing mechanism for the support bed of the radiology X-ray film machine further comprises a buffer component 6 and an exhaust component 7 installed on the buffer component 6 .

[0044] The above scheme is adopted: when the patient lies on the support bed 2 and his head is located at the top of the buffer assembly 6, the limiting ring 52 can be folded and pulled, so that the limiting ring 52 fits the patient's lower jaw. When the limiting ring 52 is pulled, the telescopic cylinder 1 51 stretches and sucks the air inside the first notch 41, so that the negative pressure moves the sealing plate 86, and the sealing plate 86 pushes the top of the guide plate 81 to fold outward through the push rod 87, and the top of the guide plate 81 pushes the bottom of the guide plate 82 to fold outward, and the squeezing plate 83 will gradually touch the patient's head and finally fix the patient's head. If the limiting ring 52 is still not fitted to the patient's lower jaw at this time, the limiting ring 52 can be continuously pulled until the patient's lower jaw is fixed by the limiting ring 52. When the guide plate 82 continues to fold, the spring sheet 3 85 will be bent, so that the squeezing plate 83 will not be forcibly fixed and damage the patient's head.

[0045] When the patient's head shakes, the plurality of positioning components 8 will simultaneously limit the patient's head. When the patient wants to stand up, the friction between the scalp and the squeezing plate 83 will force the patient to drive the guide plate 81 and the pushing plate 82 to fold and pull the push rod 87 and the sealing plate 86. However, since the first notch 41 restricts the sealing plate 86, it is difficult for the patient to move his head, thereby reducing the generation of artifacts.

[0046] like Figure 1-Figure 4 As shown, the positioning assembly 8 further includes a rubber layer 84 adhered to the side of the extrusion plate 83 , and each first notch 41 is sealed with the sealing plate 86 .

[0047] With the above solution, when the positioning assembly 8 performs the fixing work, the rubber layer 84 will first contact the patient's head. At this time, the extrusion plate 83 provides support for the fixing work, and the toughness of the rubber layer 84 helps the device not to damage the patient's head, further improving the comfort of the device when used;

[0048] The sealing relationship between the first notch 41 and the sealing plate 86 enables the negative pressure to drive the sealing plate 86 to move more quickly and sensitively, thereby improving the working efficiency of the device.

[0049] like Figure 1-Figure 5 As shown, the limiting ring 52 is arc-shaped and a rubber block is arranged in the middle. The telescopic end of the telescopic cylinder 51 is slidably installed on the top of the base 3, and the two telescopic cylinders 51 are respectively arranged at the two ends of the supporting ring 4.

[0050] The limiting assembly 5 also includes a limiting plate 55 elastically connected to the side of the telescopic end of the telescopic cylinder 51 through a spring sheet 54. The limiting plate 55 is slidably installed on the side of the telescopic end of the telescopic cylinder 51. A limiting rod 56 is installed on the outer side of the limiting ring 52 and is always in conflict with the top of the limiting plate 55.

[0051] With the above solution, when the limiting ring 52 is folded to the top of the carrying ring 4, the spring sheet 1 54 still forces the limiting plate 55 to be close to the limiting rod 56, thereby preventing the limiting ring 52 from shaking randomly due to external force and damaging the hinge between the telescopic cylinder 1 51 and the limiting ring 52;

[0052] When the limiting ring 52 is folded and fits against the patient's mandible, in order to prevent the limiting ring 52 from falling off the mandible and crushing the patient's throat, the spring sheet 1 54 still supports the bottom of the limiting rod 56 through the limiting plate 55, so that the limiting ring 52 will not be excessively folded, thereby further protecting the patient.

[0053] like Figure 1-Figure 7 As shown, the buffer assembly 6 includes a base 61, the top of the base 61 is connected to a bellows 62, the interior of the bellows 62 is connected to a plurality of air cylinders 63, the interior of each air cylinder 63 is elastically connected to a closing plate 66 via a spring 65, and the side of the air cylinder 63 is connected to a telescopic plate 64.

[0054] With the above solution, when the patient lies down, his head will first contact the bellows 62, and its toughness will not damage the back of the patient's head. At the same time, the air in the bellows 62 enters the air cylinder 63, pushing the closing plate 66 to compress the spring 65. The air flows slowly at this time, thereby increasing the time that the bellows 62 provides toughness. Furthermore, it can also cushion the impact force of the patient lying down, thereby improving the comfort of the patient when using it.

[0055] like Figure 1-Figure 7As shown, the positioning assembly 8 also includes a second slot 88 opened at the bottom of the sealing plate 86, and the interior of the first slot 41 is also provided with a second slot 88 penetrating the bottom of the carrying ring 4, and the second slot 88 is adapted to the telescopic end of the telescopic plate 64, and the telescopic end of the telescopic plate 64 is always located inside the second slot 88 on the first slot 41.

[0056] The above scheme is adopted: when the sealing plate 66 is moved by air pressure, the air inside the air cylinder 63 will enter the telescopic plate 64 and force it to extend. When the positioning assembly 8 has fixed the patient's head, the second notch 88 on the sealing plate 86 and the second notch 88 in the first notch 41 will be in an overlapping state, and the telescopic end of the telescopic plate 64 will eventually pass through the two second notches 88 at the same time, further locking the position of the sealing plate 86. At this time, the telescopic end of the telescopic cylinder 51 is difficult to retract and forces the air inside it to enter the first notch 41, and the positioning assembly 8 is also in a fixed state, thereby reducing the formation of artifacts while also improving the stability of the device.

[0057] like Figure 1-Figure 7 As shown, the air extraction assembly 7 includes a telescopic cylinder 71 installed inside the base 61 and connected to the inside of the bellows 62, and a handle 72 is fixedly mounted on the telescopic end of the telescopic cylinder 71.

[0058] The handle 72 is in an arc shape, and the side surface of the handle 72 is elastically connected to the side surface of the base 61 through two symmetrically arranged spring sheets 73.

[0059] The above scheme is adopted: after taking the film, the telescopic end of the telescopic cylinder 2 71 is pulled by the handle 72 to extract the air in the bellows 62 and the air cylinder 63, the sealing plate 66 returns to the original position, and the telescopic plate 64 no longer passes through the two second notches 88 at the same time and limits the position of the sealing plate 86. At this time, the telescopic cylinder 1 51 can be freely extended and retracted and release the fixed posture of the patient, further improving the convenience of using the device. After all the work is completed, the spring sheet 2 73 pulls the handle 72 back to the original position, so as to facilitate the next work.

[0060] The working principle and use process of the present invention:

[0061] When the patient lies on the support bed 2 and his head is located on the top of the cushioning assembly 6, his head contacts the bellows 62 first, and the air in the bellows 62 enters the air cylinder 63, pushing the closing plate 66 to compress the spring 65. When the closing plate 66 is moved by the air pressure, the air in the air cylinder 63 enters the telescopic plate 64 and forces it to stretch, fold and pull the limiting ring 52, so that the limiting ring 52 fits the patient's lower jaw. When the limiting ring 52 is pulled, the telescopic cylinder 1 51 stretches and sucks the air in the first notch 41. The air is pushed in, so that the negative pressure moves the sealing plate 86. The sealing plate 86 pushes the top of the guide plate 81 to fold outward through the push rod 87. The top of the guide plate 81 pushes the bottom of the push plate 82 to fold outward. The squeezing plate 83 will gradually touch the patient's head and finally fix the patient's head. The second notch 88 on the sealing plate 86 and the second notch 88 in the first notch 41 will be in a superimposed state, and the telescopic end of the telescopic plate 64 will eventually penetrate the two second notches 88 at the same time, further locking the position of the sealing plate 86.

[0062] After taking the film, the telescopic end of the telescopic cylinder 2 71 is pulled by the handle 72 to extract the air in the bellows 62 and the air cylinder 63, and the sealing plate 66 returns to its original position. The telescopic plate 64 no longer passes through the two second notches 88 at the same time and limits the position of the sealing plate 86. At this time, the telescopic cylinder 1 51 can be freely extended and retracted and the fixed posture of the patient is released.

[0063] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0064] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A head fixing mechanism for a support bed of a radiology X-ray machine, comprising an X-ray machine (1) and a support bed (2), characterized in that: Also includes; A base (3) mounted on the top of the support bed (2); A carrying ring (4) is arranged on the base (3), the carrying ring (4) is semicircular, and a plurality of first notches (41) arranged at equal angles in a circular direction are formed inside the carrying ring (4); A plurality of positioning components (8) are mounted on the carrying ring (4) at equal angles in the annular direction; A limiting assembly (5) installed on the side of the carrying ring (4); The positioning assembly (8) comprises a guide plate (81) hinged to the lower end of the inner wall of the carrying ring (4); the upper end of the inner wall of the carrying ring (4) is hinged to a push plate (82); the top of the guide plate (81) slides on the push plate (82); the bottom of the push plate (82) is elastically connected to an extrusion plate (83) through a spring sheet (85); the middle of the extrusion plate (83) is hinged to the bottom of the push plate (82); a sealing plate (86) is slidably installed inside the first notch (41); the side of the sealing plate (86) slides on the side of the guide plate (81) through a push rod (87); The first notches (41) are connected to each other; The limiting assembly (5) comprises two telescopic cylinders (51) connected to the first notch (41), a tension spring (53) is arranged inside the telescopic cylinder (51), and the tops of the two telescopic cylinders (51) are hingedly connected to a limiting ring (52); The head fixing mechanism for the support bed of the radiology X-ray film machine further comprises a buffer component (6) and an air extraction component (7) mounted on the buffer component (6).

2. The head fixing mechanism for the support bed of the radiology X-ray machine according to claim 1, characterized in that: The positioning assembly (8) further comprises a rubber layer (84) adhered to the side of the extrusion plate (83), and each of the first notches (41) and the sealing plate (86) are sealed.

3. The head fixing mechanism for the support bed of the radiology X-ray machine according to claim 1, characterized in that: The limiting ring (52) is in an arc shape and has a rubber block in the middle. The telescopic end of the telescopic cylinder (51) is slidably mounted on the top of the base (3). The two telescopic cylinders (51) are respectively arranged at the two ends of the bearing ring (4).

4. The head fixing mechanism for the support bed of the radiology X-ray machine according to claim 3, characterized in that: The limiting assembly (5) further comprises a limiting plate (55) elastically connected to the side of the telescopic end of the telescopic cylinder (51) through a spring sheet (54); the limiting plate (55) is slidably mounted on the side of the telescopic end of the telescopic cylinder (51); and a limiting rod (56) is mounted on the outer side of the limiting ring (52) and is always in contact with the top of the limiting plate (55).

5. The head fixing mechanism for the support bed of the radiology X-ray machine according to claim 4, characterized in that: The buffer assembly (6) comprises a base (61), the top of the base (61) is connected to a bellows (62), the interior of the bellows (62) is connected to a plurality of air cylinders (63), the interior of each air cylinder (63) is elastically connected to a closing plate (66) via a spring (65), and the side of the air cylinder (63) is connected to a telescopic plate (64).

6. The head fixing mechanism for the support bed of the radiology X-ray machine according to claim 5, characterized in that: The positioning assembly (8) also includes a second notch (88) opened at the bottom of the sealing plate (86), and the inside of the first notch (41) is also provided with a second notch (88) penetrating the bottom of the carrying ring (4), and the second notch (88) is adapted to the telescopic end of the telescopic plate (64), and the telescopic end of the telescopic plate (64) is always located inside the second notch (88) on the first notch (41).

7. The head fixing mechanism for the support bed of the radiology X-ray machine according to claim 6, characterized in that: The air extraction assembly (7) comprises a second telescopic cylinder (71) installed inside the base (61) and connected to the inside of the bellows (62), and a handle (72) is fixedly mounted on the telescopic end of the second telescopic cylinder (71).

8. The head fixing mechanism for the support bed of the radiology X-ray machine according to claim 7, characterized in that: The handle (72) is in an arc shape, and the side surface of the handle (72) is elastically connected to the side surface of the base (61) via two symmetrically arranged spring sheets (73).

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