A fixing assembly for CT equipment

Abstract

The present invention discloses a fixing assembly for CT equipment, and relates to the technical field of fixing assemblies. The present invention adopts an active movable compensation protection method, wherein the clamping method of the head part in the CT equipment is mainly realized by four layered arc pieces. In a stable use state, the layered arc pieces are used to complete the clamping and fixation of the head part. In the transportation process, the CT head is driven by active movement to move within a small range. The purpose is to simulate the CT head body in a "semi-suspended" state relative to the mobile carrier, so as to reduce the influence of the external force generated by the bumping process of the mobile carrier on the position of the CT head body. In addition, in the overall fixing process, an air pressure protection method is combined. When the CT head body moves within a small range, the internal gas pressure of the inflatable rubber ring is used to "absorb" vibration and achieve a protective effect.

Description

Technical Field

[0001] The present invention relates to the technical field of fixing components, and in particular to a fixing component for CT equipment. Background Art

[0002] CT equipment is a type of medical imaging technology that uses CT to scan organs and blood vessels throughout the body to obtain medical image information of the corresponding parts. Medical image information is used as diagnostic information to diagnose patient pathology. The use of CT equipment is not limited to fixed locations. The mobile vehicle-mounted CT machines currently used are designed to meet mobile medical services in different environments. For details, please refer to CN110584694A, a vehicle-mounted mobile CT machine.

[0003] As shown in CN110584694A, the CT device is installed in a mobile carrier (vehicle) and transported to a designated area for medical services. To prevent damage to the CT device caused by the bumps generated during the movement of the mobile carrier, shock absorbers are mainly used for protection. The essence of the shock absorption principle is to accelerate the attenuation of vibrations between objects (the mobile carrier frame and the CT device) by absorbing and releasing kinetic energy. However, the forces generated during the bumps of the mobile carrier will still indirectly act on the CT device, causing problems such as misalignment of the internal electrical components of the CT device, thereby causing a certain degree of damage to the CT device.

[0004] In response to the above technical problems, this application proposes a solution. Summary of the Invention

[0005] The object of the present invention is to provide a fixing assembly for CT equipment, which is used to solve the problem that the CT equipment is damaged to a certain extent due to the bumps during the movement of the mobile carrier during the fixing process of the current vehicle-mounted CT machine.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] A fixing assembly for CT equipment includes a CT head body, an external fixing frame is provided on the outside of the CT head body, and a mounting ring is installed on the outside of the CT head body. An inflatable rubber ring and two inner rings are installed at the middle end of the outer portion of the mounting ring. The two inner rings are arranged in mirror symmetry along the inflatable rubber ring. An outer ring is provided on the outer ring of the CT head body. The inflatable rubber ring and the inner ring are located between the outer ring and the mounting ring.

[0008] Four level arc pieces are arranged on the inner ring position of the outer collar, and the four level arc pieces are arranged in a circular array along the center point position of the CT head body. An electric push rod is installed in the position of the external fixator corresponding to the level arc piece, and the transmission rod of the electric push rod matches the center point position of the outer wall of the level arc piece. The level arc piece is located on the outer ring position of the inflatable rubber ring and the inner collar, and four supporting top rods are arranged on the inner wall position of the level arc piece, and balls are installed at the ends of the four supporting top rods. The inner collar is provided with a coordination groove corresponding to the level arc piece, and the ball is slidably connected in the coordination groove.

[0009] It is further configured as follows: the outer curved surface of the inflatable rubber ring matches the inner curved surface of the layered arc piece, and the outer diameter of the inner ring is smaller than the outer diameter of the inflatable rubber ring.

[0010] It is further configured as follows: a movable joint is provided at the end of the electric push rod transmission rod, and the electric push rod transmission rod is movably connected to the hierarchical arc piece through the movable joint.

[0011] It is further configured as follows: the top end of the support rod is configured as a spherical joint, and the support rod is movably connected to the inner curved surface of the hierarchical arc piece through the spherical joint; one end of the support rod is connected to a curved spring, and one end of the curved spring is connected to the hierarchical arc piece.

[0012] It is further configured that: the four supporting top rods in the hierarchical arc piece are respectively configured as the first-level force-bearing part and the second-level force-bearing part at the locations corresponding to the two inner rings;

[0013] The two supporting top rods located at the first-level force-bearing part are arranged in an outward-facing "X" shape, and the two supporting top rods located at the second-level force-bearing part are arranged in an inward-facing "X" shape.

[0014] It is further configured as follows: the balls located in the primary force-bearing portion are located at the two end positions inside the coordination groove, and the balls located in the secondary force-bearing portion are located at the middle end position inside the coordination groove.

[0015] It is further configured as follows: four positioning columns are installed on the mounting ring, the four positioning columns are arranged in a circular array along the center point of the CT head body, and the positioning columns pass through the inflatable rubber ring, and one end of the positioning column matches the inner curved surface of the outer ring.

[0016] It is further configured as follows: a pressure plate is installed at the positions of the inner curved surface of the outer ring corresponding to the two ends of the hierarchical arc piece, the pressure plates are symmetrically arranged along the positioning column, and the pressure plates are located in the middle part of the outer ring and the hierarchical arc piece, and the pressure plates are arc-shaped along the outer wall on one side close to the hierarchical arc piece.

[0017] It is further configured as follows: a protective cover is installed at the center point of the upper end of the external fixation frame, a servo motor is installed at one end inside the protective cover, a driving gear plate is installed at the output end of the servo motor, a notched gear groove is opened on the outer wall position of the outer ring corresponding to the driving gear plate, and the driving gear plate is meshed with the notched gear groove.

[0018] It is further configured as follows: four positioning slots are provided on the outer collar, and the positions of the positioning slots correspond to the transmission rods of the electric push rod.

[0019] The present invention has the following beneficial effects:

[0020] 1. The present invention is directed to the fixing process of the joint portion in a CT device, and is particularly illustrative of a CT device installed inside a mobile carrier. The outer collar, inner collar, and layered arc pieces serve as the fixing bodies. During normal use of the CT device, the layered arc pieces are squeezed in the same direction to clamp and fix the CT joint body. During transportation, the layered arc pieces are loosened from the CT head body, and the CT head body is in a relatively "semi-suspended" state relative to the overall external fixation frame. The layered arc pieces drive the outer collar to rotate back and forth in a small range, thereby indirectly driving the CT head part to "break away" from the external force environment (external force generated by the on-demand movement of the mobile carrier) through the layered arc pieces. The overall structure adopts an active movable position-filling method to generate a force that drives the CT head body to move in an orderly and small range, thereby reducing the impact of external forces on the CT head body. In the process of active movable replacement, an inflatable rubber ring is added to the outside of the mounting ring. The inflatable rubber ring fits completely with the hierarchical arc piece, and the gas pressure inside the inflatable rubber ring is used to "absorb" the extra kinetic energy of the CT head body during the process of active movable replacement. The purpose is to avoid additional losses to the CT head body due to the large amplitude during the process of active movable replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 This is a schematic structural diagram of a fixing assembly for CT equipment proposed by the present invention;

[0023] Figure 2 A cross-sectional view of an external fixation frame component in a fixation assembly for CT equipment proposed by the present invention;

[0024] Figure 3This is a schematic structural diagram of an outer collar component in a fixing assembly for CT equipment proposed by the present invention;

[0025] Figure 4 This is a schematic structural diagram of a CT head body in a fixing assembly for CT equipment proposed by the present invention;

[0026] Figure 5 This is a schematic structural diagram of a multi-level arc piece component in a fixing assembly for CT equipment proposed by the present invention;

[0027] Figure 6 A fixing assembly for CT equipment proposed by the present invention Figure 5 Front view of

[0028] Figure 7 This is a cross-sectional view of an inner ring component in a fixing assembly for CT equipment proposed by the present invention;

[0029] Figure 8 This is a cross-sectional view of an outer sleeve component in a fixing assembly for CT equipment proposed by the present invention.

[0030] In the figure: 1. External fixator; 2. Protective cover; 3. CT head body; 4. Electric push rod; 5. Outer ring; 6. Servo motor; 7. Driving gear plate; 8. Notched gear groove; 9. Positioning groove; 10. Layered arc piece; 11. Positioning column; 12. Inflatable rubber ring; 13. Inner ring; 14. Mounting ring; 15. Curved spring; 16. Ball; 17. Supporting push rod; 1701. Primary force-bearing part; 1702. Secondary force-bearing part; 18. Coordinating slide; 19. Force-bearing pressure piece. DETAILED DESCRIPTION

[0031] The following is a clear and complete description of the technical solutions of the present invention in conjunction with the embodiments. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] Example 1

[0033] This embodiment is directed to a vehicle-mounted CT device, and is primarily concerned with the fixing process of the CT head body in the CT device. During the transportation of the CT device, the bumpy feeling generated by the movement of the mobile carrier may cause certain damage to the CT head body. If shock absorption protection is used to protect the CT head body, and the essence of shock absorption is the storage / release process of kinetic energy, the force generated by the bumps will still be indirectly transmitted to the CT device body. Therefore, the following technical solution is proposed:

[0034] Reference Figures 1 to 8In this embodiment, a fixing assembly for CT equipment includes a CT head body 3, an external fixing frame 1 is provided on the outside of the CT head body 3, and a mounting ring 14 is installed on the outside of the CT head body 3. An inflatable rubber ring 12 and two inner rings 13 are installed at the middle end of the outer portion of the mounting ring 14. The two inner rings 13 are arranged in a mirror-symmetrical manner along the inflatable rubber ring 12. An outer ring 5 is provided on the outer ring of the CT head body 3. The inflatable rubber ring 12 and the inner ring 13 are located between the outer ring 5 and the mounting ring 14.

[0035] Four level arc pieces 10 are arranged on the inner ring position of the outer collar 5. The four level arc pieces 10 are arranged in a circular array along the center point position of the CT head body 3. An electric push rod 4 is installed in the position of the external fixator 1 corresponding to the level arc piece 10. The transmission rod of the electric push rod 4 matches the center point position of the outer wall of the level arc piece 10. The level arc piece 10 is located on the outer ring position of the inflatable rubber ring 12 and the inner collar 13, and four supporting top rods 17 are arranged on the inner wall position of the level arc piece 10. Balls 16 are installed at the ends of the four supporting top rods 17. A coordination groove 18 corresponding to the level arc piece 10 is opened in the inner collar 13, and the ball 16 is slidably connected in the coordination groove 18.

[0036] The outer curved surface of the inflatable rubber ring 12 matches the inner curved surface of the layered arc piece 10 , and the outer diameter of the inner sleeve 13 is smaller than the outer diameter of the inflatable rubber ring 12 .

[0037] A protective cover 2 is installed at the center point of the upper end of the external fixator 1, a servo motor 6 is installed at one end inside the protective cover 2, a driving gear plate 7 is installed at the output end of the servo motor 6, and a notched gear groove 8 is opened on the outer wall position of the outer ring 5 corresponding to the driving gear plate 7. The driving gear plate 7 is meshed with the notched gear groove 8. Four positioning grooves 9 are opened on the outer ring 5. The opening position of the positioning groove 9 corresponds to the transmission rod of the electric push rod 4.

[0038] Working Principle: This embodiment is aimed at vehicle-mounted CT equipment, especially the fixing process of the head part of the CT equipment. During use, it is divided into two groups of states: fully fixed and partially fixed:

[0039] Completely fixed state: The four electric push rods 4 are started simultaneously, so that the four layer arc pieces 10 are synchronously close to the CT head body 3, and the four supporting top rods 17 on the layer arc pieces 10 support the inner ring 13, so as to achieve the effect of completely fixing the CT head body 3. Its application scenario is the normal operation state of the CT equipment:

[0040] Incompletely fixed state: This state is mainly for the process of transporting the CT device. During the transport of the CT, the first step is that the layered arc piece 10 is separated from the mounting ring 14, so that the layered arc piece 10 does not completely clamp the CT head body 3. The CT head body 3 can move inside the outer ring 5. The movement process includes the following parts:

[0041] The servo motor 6 drives the driving gear plate 7 to rotate back and forth in a small amplitude, thereby driving the outer ring 5 to rotate back and forth in a small amplitude. The small amplitude reciprocating rotation of the outer ring 5 is used as the main kinetic energy, and the multiple layers of arc pieces 10 are used to indirectly transmit the external force generated during the rotation of the outer ring 5 to the CT head body 3;

[0042] Then the entire CT head body 3 is in a "semi-suspended" state relative to the external fixator 1. The purpose is to reduce the impact of the external force generated during the bumping process on the CT head body 3. The CT head body 3 mainly moves in a small range through the external force generated by the rotation of the outer ring 5, and reduces the impact of the external force generated by the bumping on the CT head body 3 in an active and movable manner.

[0043] In addition, an inflatable rubber ring 12 is provided, which utilizes the pressure of the gas inside it to cooperate with the kinetic energy generated by the CT head body 3 during a small range of movement, and reduces the loss caused by the CT head body 3 colliding with the outer ring 5 by absorbing / releasing the kinetic energy.

[0044] Example 2

[0045] This embodiment optimizes the motion process of the hierarchical arc structure in the first embodiment as follows:

[0046] A movable joint is provided at the end of the transmission rod of the electric push rod 4, and the transmission rod of the electric push rod 4 is movably connected to the hierarchical arc piece 10 through the movable joint. The top of the support top rod 17 is set as a spherical joint, and the support top rod 17 is movably connected to the inner curved surface of the hierarchical arc piece 10 through the spherical joint. One end of the support top rod 17 is connected to a curved spring 15, and one end of the curved spring 15 is connected to the hierarchical arc piece 10.

[0047] The purpose is that when the electric push rod 4 pushes the layered arc piece 10 to move radially, it also needs to cooperate with the rotation process of the outer ring 5 so that the layered arc piece 10 can move up and down along its center point;

[0048] Then, the bending spring 15 on the supporting top rod 15 is used to ensure that the layered arc piece 10 can fully fix and clamp the CT head body 3, and the CT head body 3 will not be completely separated from the layered arc piece 10 when actively moving in the layered arc piece 10;

[0049] It should be noted that the bending spring 15 here can play the buffering and shock-absorbing role of a spring, but its buffering and shock-absorbing role is not the main protective structure of the overall structure. In this embodiment, the main function of the bending spring 15 is to connect the support top rod 17 so that the support top rod 17 can also move within a small range to cooperate with the overall active movement process.

[0050] Example 3

[0051] This embodiment optimizes the supporting top rod structure in the first embodiment:

[0052] The four supporting top rods 17 in the hierarchical arc piece 10 are respectively set as the first-level force-bearing part 1701 and the second-level force-bearing part 1702 corresponding to the two inner rings 13;

[0053] The two supporting top rods 17 located at the first-level force-bearing part 1701 are arranged in an outward-facing "X" shape, and the two supporting top rods 17 located at the second-level force-bearing part 1702 are arranged in an inward-facing "X" shape. The balls 16 located in the first-level force-bearing part 1701 are located at the two end positions inside the coordination groove 18, and the balls 16 located in the second-level force-bearing part 1702 are located at the middle end position inside the coordination groove 18.

[0054] Its purpose is: as shown in the first embodiment, and in combination with the attached Figure 4 and attached Figure 5 The number of inner rings 13 is two, so the four support rods 17 are set as the first-level force-bearing part 1701 and the second-level force-bearing part 1702 according to the setting position of the inner ring 13. Figure 6 The two supporting top rods 17 located in the first-level force-bearing part 1701 are in an outward-facing "X" shape, and their structure has higher supporting stability, while the second-level force-bearing part 1702 is in an inward-facing "X" shape. Then, the supporting top rod 17 in the second-level force-bearing part 1702 has a movable range, but will not interfere with the supporting top position characteristics of the overall supporting top rod 17.

[0055] Example 4

[0056] This embodiment optimizes the movement process of the outer collar in the first embodiment as follows:

[0057] Four positioning columns 11 are installed on the mounting ring 14. The four positioning columns 11 are arranged in a circular array along the center point of the CT head body 3, and the positioning columns 11 pass through the inflatable rubber ring 12. One end of the positioning column 11 matches the inner curved surface of the outer collar 5. The inner curved surface position of the outer collar 5 corresponds to the two ends of the hierarchical arc piece 10. The stress-bearing pressure sheet 19 is symmetrically arranged along the positioning column 11, and the stress-bearing pressure sheet 19 is located in the middle part of the outer collar 5 and the hierarchical arc piece 10. The stress-bearing pressure sheet 19 is arc-shaped along the outer wall of the side close to the hierarchical arc piece 10.

[0058] Its purpose is to refer to the attached Figure 8 , wherein the pressure piece 19 rotates with the outer ring 5, and the level arc piece 10 in the corresponding position moves, and the movement process is as follows:

[0059] If the outer collar 5 rotates clockwise, the pressure piece at the left side of the level arc piece 1 will press the level arc piece 10, so that the left side of the level arc piece 10 is closer to the position of the CT head body 3, and the other end of the level arc piece 10 is away from the position of the CT head body 3. This is the activity trajectory of one of the level arc pieces 10. When the outer collar 5 rotates back and forth, the four level arc pieces 10 deviate from the trajectory at the corresponding angle synchronously, thereby causing the CT head body 3 to deviate from the lower right side along its center point area under the pressure of the four level arc pieces 10.

[0060] Therefore, when the outer ring 5 reciprocates, the CT head body 3 deviates in multiple angles along its center point area. This is a partial improvement of the first embodiment.

[0061] It should be noted that in this embodiment, the movement process of the CT head body 3 is improved by adding a force-bearing pressure piece 19 , and the positioning column 11 added to the mounting ring 14 also serves to limit the maximum movement range of the force-bearing pressure piece 19 .

[0062] To sum up: for the fixing process of the joint part in the CT equipment, and especially for the CT equipment installed inside the mobile carrier, the outer ring, inner ring and layered arc piece are used as the fixing body. During the normal use of the CT equipment, the layered arc piece is squeezed in the same direction to achieve the purpose of clamping and fixing the CT joint body. During the transportation process, the layered arc piece loosens the CT head body, and the CT head body is in a relatively "semi-suspended" state relative to the overall external fixator, and drives the outer ring to rotate back and forth in a small range, thereby indirectly driving the CT head part to "break away" from the external force environment (the external force generated by the mobile carrier during the movement process) through the layered arc piece. The overall structure adopts an active movable filling method to generate a force that drives the CT head body to move in an orderly and small range, so as to reduce the impact of external force on the CT head body.

[0063] The above contents are merely examples and explanations of the structure of the present invention. Those skilled in the art may make various modifications or additions to the described specific embodiments or replace them in a similar manner. As long as they do not deviate from the structure of the invention or exceed the scope defined by the claims, they shall fall within the scope of protection of the present invention.

[0064] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0065] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to specific embodiments. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A fixing assembly for CT equipment, comprising a CT head body (3), characterized in that: An external fixing frame (1) is provided on the outside of the CT head body (3), and a mounting ring (14) is installed on the outside of the CT head body (3). An inflatable rubber ring (12) and two inner rings (13) are installed at the middle end of the outer position of the mounting ring (14). The two inner rings (13) are arranged in a mirror-symmetrical manner along the inflatable rubber ring (12). An outer ring (5) is provided on the outer ring of the CT head body (3), and the inflatable rubber ring (12) and the inner ring (13) are located in the middle of the outer ring (5) and the mounting ring (14). Four hierarchical arc pieces (10) are arranged on the inner ring position of the outer sleeve (5), and the four hierarchical arc pieces (10) are arranged in a ring array along the center point position of the CT head body (3). An electric push rod (4) is installed in the position of the outer fixed frame (1) corresponding to the hierarchical arc piece (10), and the transmission rod of the electric push rod (4) matches the center point position of the outer wall of the hierarchical arc piece (10). The hierarchical arc piece (10) is located on the outer ring position of the inflatable rubber ring (12) and the inner sleeve (13), and four supporting top rods (17) are arranged on the inner wall position of the hierarchical arc piece (10). Balls (16) are installed at the ends of the four supporting top rods (17). A matching slide groove (18) corresponding to the hierarchical arc piece (10) is opened in the inner sleeve (13), and the ball (16) is slidably connected in the matching slide groove (18); A protective cover (2) is installed at the center point of the upper end of the external fixing frame (1), a servo motor (6) is installed at one end inside the protective cover (2), a driving gear plate (7) is installed at the output end of the servo motor (6), and a notched gear groove (8) is provided on the outer wall of the outer ring (5) corresponding to the outer wall of the driving gear plate (7), and the driving gear plate (7) is meshed with the notched gear groove (8).

2. A fixing assembly for CT equipment according to claim 1, characterized in that: The outer curved surface of the inflatable rubber ring (12) matches the inner curved surface of the layered arc sheet (10), and the outer diameter of the inner sleeve (13) is smaller than the outer diameter of the inflatable rubber ring (12).

3. The fixing assembly for CT equipment according to claim 1, characterized in that: A movable joint is provided at the end of the transmission rod of the electric push rod (4), and the transmission rod of the electric push rod (4) is movably connected to the hierarchical arc piece (10) via the movable joint.

4. The fixing assembly for CT equipment according to claim 1, characterized in that: The top end of the support rod (17) is configured as a spherical joint, and the support rod (17) is movably connected to the inner curved surface of the hierarchical arc piece (10) via the spherical joint. One end of the support rod (17) is connected to a curved spring (15), and one end of the curved spring (15) is connected to the hierarchical arc piece (10).

5. The fixing assembly for CT equipment according to claim 4, characterized in that: The four supporting top rods (17) in the hierarchical arc piece (10) are respectively arranged at positions corresponding to the two inner rings (13) as a first-level force-bearing portion (1701) and a second-level force-bearing portion (1702); The two supporting top rods (17) located at the first-level force-bearing portion (1701) are arranged in an outward-facing "X" shape, and the two supporting top rods (17) located at the second-level force-bearing portion (1702) are arranged in an inward-facing "X" shape.

6. The fixing assembly for CT equipment according to claim 5, characterized in that: The balls (16) in the first-level force-bearing portion (1701) are located at the two end positions inside the coordination chute (18), and the balls (16) in the second-level force-bearing portion (1702) are located at the middle end position inside the coordination chute (18).

7. The fixing assembly for CT equipment according to claim 1, characterized in that: Four positioning columns (11) are mounted on the mounting ring (14). The four positioning columns (11) are arranged in a circular array along the center point of the CT head body (3). The positioning columns (11) penetrate the inflatable rubber ring (12). One end of the positioning column (11) matches the inner curved surface of the outer ring (5).

8. The fixing assembly for CT equipment according to claim 7, characterized in that: The inner curved surface of the outer ring (5) is provided with pressure plates (19) at both ends of the hierarchical arc sheet (10), and the pressure plates (19) are symmetrically arranged along the positioning column (11). The pressure plates (19) are located in the middle part of the outer ring (5) and the hierarchical arc sheet (10), and the pressure plates (19) are in an arc shape along the outer wall of the side close to the hierarchical arc sheet (10).

9. The fixing assembly for CT equipment according to claim 8, characterized in that: Four positioning slots (9) are provided on the outer ring (5), and the opening positions of the positioning slots (9) correspond to the transmission rods of the electric push rod (4).

Images