An automatic obstacle avoidance and obstacle removal type CT multi-functional scanning bed

Abstract

The present invention discloses an automatic obstacle avoidance and obstacle removal type CT multi-functional scanning bed in the technical field of medical equipment, which includes a lifting part, a conveying part and a detachable bed board installed on the conveying part. The detachable bed board includes a sliding plate part and a transfer plate part. The sliding plate part drives the movement of the human body in the horizontal direction into the scanner, and the transfer plate part is detachably connected to the sliding plate part. It includes a side rail fixed on one side of the bottom of the conveying part. An extrusion component is provided at the bottom of the side rail. A barrier removal component is fixed at the end of the transmission part away from the lifting part. The extrusion component and the barrier removal component are connected with a negative pressure pipe. The vertical movement of the extrusion component drives the horizontal movement of the barrier removal component through the side rail and the negative pressure pipe, and can quickly push the obstacles that have strayed into both sides out of the scanning bed area in time; it is no longer necessary for medical staff to push the obstacles out of the scanning bed, improving the detection efficiency. At the same time, the patient can be moved onto the scanning bed more labor-savingly without causing secondary harm to the patient.

Description

Technical Field

[0001] The invention relates to the technical field of medical equipment, and in particular to an automatic obstacle avoidance and clearing CT multifunctional scanning bed. Background Art

[0002] With the development of science and technology, CT (Computed Tomography) machines are increasingly used in medical clinics. They use precisely collimated rays, sound waves, and highly sensitive detectors to perform cross-sectional scans around the human body. They have the characteristics of fast scanning time and clear imaging. At present, CT machines have become one of the most important medical equipment in hospitals. As an important part of CT machines, scanning beds are also increasingly used.

[0003] Nowadays, scanning beds are no longer just a support frame for the subjects. In order to meet their convenience and versatility, scanning beds have also added many auxiliary mechanisms. For example: for some subjects who cannot take care of themselves, a stretcher is first needed to transport the subjects to the scanning bed. Secondly, the height of the scanning bed needs to be adjusted and the bed body needs to be raised or lowered to be flush with the stretcher, so as to facilitate the transfer of the patient from the stretcher to the scanning bed. However, in actual operation, the scanning bed often squeezes the stretcher during the lifting process, causing the bed body to be squeezed and damaged, which in turn affects the use of the scanning bed, such as an obstacle detection mechanism, side rail structure, scanning bed and CT equipment with publication number CN110934607A. The obstacle detection mechanism is suitable for detecting the contact between the sports equipment and the obstacles during the movement process, and comprises: a connecting rod assembly, which is suitable for being arranged on the sports equipment, and has a first end and a second end axially opposite to each other; a contact portion, which is arranged at the first end of the connecting rod assembly, and is suitable for contacting with the obstacle during the movement of the sports equipment; the connecting rod assembly moves under the action of the obstacle; and a sensing assembly, which comprises a sensor and a trigger member, the trigger member is fixedly arranged at the second end of the connecting rod assembly, and the sensor senses a trigger signal during the movement of the trigger member. The detection mechanism provided by the present invention effectively solves the problem that the sports equipment is damaged by collision, squeezing, or compression of obstacles during the movement process.

[0004] There are the following defects:

[0005] 1. Although the scanning bed can be controlled to stop or alert an abnormality according to the trigger signal, medical staff are still required to push the obstacles out of the scanning bed. Obstacles that mistakenly enter the scanning bed area on both sides cannot be quickly pushed out of the scanning bed area in time, which affects the detection efficiency;

[0006] 2. For some patients with inconvenient mobility or severe injuries, they are unable to climb onto the scanning bed by themselves. It requires multiple people to jointly carry the patient from the hospital bed to the CT bed or transfer the patient from the CT bed to the hospital bed. During the transfer process, it is easy to cause secondary injuries to the patient, especially for some patients with fractures or lumbar injuries, greatly increasing the patient's pain. Summary of the Invention

[0007] The purpose of this section is to outline some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of the present invention, to avoid obscuring the purpose of this section, the abstract, and the title. However, such simplifications or omissions shall not be used to limit the scope of the present invention.

[0008] Therefore, the purpose of the present invention is to provide an automatic obstacle avoidance and clearance CT multi-functional scanning bed, which can quickly push out the obstacles that enter from both sides in time from the scanning bed area; there is no need for medical staff to push the obstacles out of the scanning bed, improving the detection efficiency. At the same time, the patient can be moved onto the scanning bed with less effort, without causing secondary injuries to the patient.

[0009] To solve the above technical problems, the present invention provides an automatic obstacle avoidance and clearance CT multi-functional scanning bed, adopting the following technical solutions: including:

[0010] A bed body, including a lifting part, a conveying part, and a detachable bed board installed on the conveying part. The detachable bed board includes a sliding plate member and a transfer plate member. The sliding plate member drives the movement of the human body in the horizontal direction into the scanner, and the transfer plate member is detachably connected to the sliding plate member;

[0011] An obstacle avoidance and clearance structure, including a side rail fixed to one side of the bottom of the conveying part. An extrusion component is provided at the bottom of the side rail. A clearance component is fixed to the end of the transmission part far from the lifting part. The extrusion component and the clearance component are connected with a negative pressure pipe. The vertical movement of the extrusion component drives the horizontal movement of the clearance component through the side rail and the negative pressure pipe.

[0012] Optionally, the sliding plate member includes a plate body, a limit baffle, a guiding protrusion, and rollers arranged on the upper surface of the plate body. The limit baffle includes a fixing plate arranged along the length direction of the plate body on one side of the plate body and an inserting plate arranged along the length direction of the plate body on the other side of the plate body. The inserting plate is detachably connected to the upper surface of the plate body. The guiding protrusion is perpendicular to the limit baffle. An installation long groove parallel to the length direction of the guiding protrusion is opened on the plate body, and a plurality of rollers are evenly distributed along the length direction in the installation long groove.

[0013] By adopting the above technical solutions, only by pushing the transfer plate member can the patient be driven to move onto the sliding plate member together, and the patient can be moved onto the scanning bed with less effort.

[0014] Optionally, a guiding sliding groove adapted to the guiding protrusion is formed at the bottom of the transfer plate member, and the depth of the guiding sliding groove is not less than the distance between the upper surface of the guiding protrusion and the upper surface of the roller.

[0015] By adopting the above technical solution, when the transfer plate member is placed on the guiding protrusion of the sliding plate member through the guiding sliding groove, the lower surface of the plate body can contact with the upper surface of the roller. In this way, under the rolling action of the roller, only the transfer plate member needs to be pushed, and the operation is simple, time-saving and labor-saving.

[0016] Optionally, the transfer plate member adopts a split design. The transfer plate member includes a first transfer plate and a second transfer plate. An arc-shaped protrusion is provided on one assembly surface of the first transfer plate, and an arc-shaped recess is provided on the other side surface of the second transfer plate that is assembled with the first transfer plate. Fixing grooves and latches are formed near both ends of the arc-shaped protrusion on one assembly surface of the first transfer plate. At a position corresponding to the fixing groove on the other side surface of the second transfer plate that is assembled with the first transfer plate, a fixing block is provided. The fixing block is inserted into the fixing groove and fixed by the latch. The guiding sliding grooves are formed at the bottoms of both the first transfer plate and the second transfer plate.

[0017] By adopting the above technical solution, it is convenient to transfer the patient onto the transfer plate member without multiple transfers of the patient, effectively avoiding secondary injuries to the patient.

[0018] Optionally, a clamping arm structure is provided on the limit baffle. The clamping arm structure includes a clamping arm ring body. One end of the clamping arm ring body is rotatably connected to the upper surface of the limit baffle. A limit socket is provided at one end of the limit baffle, and a blocking plate is inserted into the limit socket. When the end of the clamping arm ring body away from the limit baffle contacts the surface of the transfer plate member, the blocking plate restricts the rotation of the clamping arm ring body.

[0019] By adopting the above technical solution, the patient's arm is restricted, solving the problem of pinching the arm during the process of the scanning bed being translated into the inspection equipment.

[0020] Optionally, the side rail is fixed to one side of the bottom of the conveying part through a plurality of fixing rods. A sealed chamber is provided inside the side rail. A communication hole communicating with one end of the negative pressure pipe is formed at the top of the sealed chamber. The extrusion member is inserted into the bottom of the sealed chamber. The extrusion member includes an extrusion rod. A piston is provided at one end of the extrusion rod extending into the sealed chamber. An extrusion block is provided at the end of the extrusion rod away from the piston. A return spring is connected between the extrusion block and the bottom of the side rail.

[0021] By adopting the above technical solution, a new type of side rail is used. The extrusion member can not only protect the side rail, but also generate a driving force for controlling the operation of the obstacle removal component when being extruded; after the obstacle is removed, the return spring will drive the extrusion block to return to the initial position.

[0022] Optionally, the obstacle removal component includes a stopper fixed at the middle position of the bottom of the transmission part. One side of the stopper is provided with a guide cylinder perpendicular to the moving direction of the extrusion rod. A push cylinder is hermetically sleeved outside the guide cylinder. A push block is provided on the side of the push cylinder away from the stopper. The end of the negative pressure tube away from the sealing chamber is communicated with the end of the guide cylinder away from the push cylinder.

[0023] By adopting the above technical solution, the push cylinder will move along the length direction of the guide cylinder under the action of air pressure, driving the push block to move in a direction perpendicular to the moving direction of the extrusion rod, so that the obstacles that accidentally enter from both sides can be quickly pushed out of the scanning bed area in time; there is no need for medical staff to push the obstacles out of the scanning bed, improving the detection efficiency.

[0024] Optionally, when the push cylinder moves along the guide cylinder to the farthest position away from the stopper, the pushing space of the push cylinder is smaller than the extrusion space of the sealing chamber.

[0025] By adopting the above technical solution, it can meet the requirement that the push cylinder moves from the side close to the stopper to outside the side rail, so as to push the obstacle located under the side rail out of the bottom of the scanning bed to avoid damage to the scanning bed or the side rail, realizing automatic obstacle avoidance and removal.

[0026] Optionally, a pressure sensor is provided on the lower surface of the extrusion block. Abnormal signals are detected through the pressure sensor and sent to the control end. The control end controls the lifting part to stop moving or issues an alarm according to the signals.

[0027] By adopting the above technical solution, the lifting of the scanning bed is controlled to avoid damage to the scanning bed or the side rail.

[0028] In summary, the present invention has at least the following beneficial effects:

[0029] 1. By adopting a new type of side rail, the present invention connects the extrusion component, the negative pressure tube and the obstacle removal component. When there is an obstacle under the side rail, the extrusion component can not only protect the side rail, but also drive the obstacle removal component to move horizontally under the action of negative pressure when moving vertically under extrusion, so as to quickly push the obstacles that accidentally enter from both sides out of the scanning bed area in time; there is no need for medical staff to push the obstacles out of the scanning bed, improving the detection efficiency;

[0030] 2. By adopting a detachable bed board composed of a sliding plate member and a transfer plate member, when a patient needs to be examined, the patient only needs to lie on the transfer plate member, and then the transfer plate member together with the patient is pushed above the sliding plate member, and the patient can be transferred to the CT bed for examination, and the patient can be moved to the scanning bed more labor-saving;

[0031] 3. The transfer plate member of the present invention adopts a split design, which is convenient for transferring the patient onto the transfer plate member without multiple handling of the patient, effectively avoiding secondary harm to the patient.

[0032] 4. The present invention solves the problem of pinching the patient's arm during the process of the scanning bed being translated into the CT examination device by providing a clamping arm structure on the limit baffle, and restricting the patient's arm through the clamping arm structure for critically ill patients or patients who are unconscious during the inspection process.

[0033] 5. The present invention can monitor obstacles that are not easily pushed under the scanning bed by designing a pressure sensor sensing element, sense them in a timely manner, and control the lifting of the scanning bed to avoid damage to the scanning bed or the side rail. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention, and those of ordinary skill in the art can also obtain other drawings based on these drawings without creative efforts.

[0035] Figure 1 It is a schematic structural diagram of the present invention;

[0036] Figure 2 It is a schematic structural diagram of the sliding plate member of the present invention;

[0037] Figure 3 It is a schematic structural diagram of the transfer plate member of the present invention;

[0038] Figure 4 For the present invention Figure 2 The enlarged schematic structural diagram of part A;

[0039] Figure 5 It is a schematic structural diagram of the obstacle avoidance and obstacle removal structure of the present invention;

[0040] Figure 6 It is a schematic structural diagram of the pressure sensor installation structure of the present invention.

[0041] Description of reference numerals: 1, bed body; 101, lifting part; 102, conveying part; 103, detachable bed board; 103a, sliding plate; 103a-1, plate body; 103a-2, fixed plate; 103a-3, plug plate; 103a-4, guide protrusion; 103a-5, installation long groove; 103a-6, roller; 103b, transfer plate; 103b-1, first transfer plate; 103b-2, second transfer plate; 103b-3, guide slide groove; 103b-4, arc protrusion; 103b-5, arc depression; 103b-6, fixed groove; 103b-7, lock; 103 b-8, fixed block; 103c, clamping arm structure; 103c-1, clamping arm ring body; 103c-2, limit socket; 103c-3, blocking plate; 104, pressure sensor; 2, obstacle avoidance and clearing structure; 201, side rail; 201a, fixed rod; 201b, sealed chamber; 201c, connecting hole; 202, extrusion component; 202a, extrusion rod; 202b, piston; 202c, extrusion block; 203, obstacle clearing assembly; 203a, stop block; 203b, guide cylinder; 203c, push cylinder; 203d, push block; 203e, pushing space; 204, negative pressure tube; F, reset spring. DETAILED DESCRIPTION

[0042] The following will be combined with the attached Figures 1-6 The technical solution of the present invention is described clearly and completely. Obviously, the described implementation mode is a part of the embodiments of the present invention, rather than all the implementation modes. Based on the implementation modes in the present invention, all other implementation modes obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention. In addition, the technical features involved in the different implementation modes of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0043] In order to prevent the scanning bed from colliding with the stretcher or other obstacles during the lifting process, the existing CT equipment generally installs anti-collision rails on the ground on both sides of the scanning bed. That is, the rails are used to prevent the stretcher from approaching the scanning bed, which will cause a large gap between the stretcher and the scanning bed. For the subjects who are unable to take care of themselves, they usually have serious physical injuries. In the process of transferring the stretcher to the scanning bed, due to the large gap between the two, the subject needs to be lifted and moved, which can easily cause secondary injuries to the subject. In addition, normal patients are also at risk of being tripped by the rails when getting on the scanning bed. Therefore, it can be seen that the existing solution for preventing squeezing during the lifting and lowering of the scanning bed has a large safety hazard, and is not convenient for transferring patients, and it is difficult to meet the needs.

[0044] Embodiment 1

[0045] Reference Figure 1 ,Figure 2 and Figure 5 , the present invention discloses an automatically obstacle-avoiding and obstacle-removing CT multi-functional scanning bed, comprising:

[0046] A bed body 1, including a lifting part 101, a conveying part 102 and a detachable bed board 103 installed on the conveying part 102. The lifting part 101 realizes the height adjustment of the scanning bed, and any structure with a lifting function in the related art can be adopted, such as hydraulic lifting, electro-mechanical arm, etc., which will not be elaborated here. The conveying part 102 realizes the movement of the detachable bed board 103 in the horizontal direction, so as to drive the human body into the scanner for scanning. The conveying structure can adopt any structure with a conveying function in the related art, such as a motor conveyor belt, etc., which will not be elaborated here.

[0047] The detachable bed board 103 adopted by the present invention includes a sliding plate member 103a and a transfer plate member 103b. The sliding plate member 103a drives the human body to move horizontally into the scanner, and the transfer plate member 103b is detachably connected to the sliding plate member 103a; specifically, the sliding plate member 103a includes a plate body 103a-1 and a limit baffle, a guiding protrusion 103a-4 and rollers 103a-6 arranged on the upper surface of the plate body 103a-1. The limit baffle includes a fixing plate 103a-2 arranged along the length direction of the plate body 103a-1 on one side of the plate body 103a-1 and an insertion plate 103a-3 arranged along the length direction of the plate body 103a-1 on the other side of the plate body 103a-1. The fixing plate 103a-2 and the insertion plate 103a-3 can limit the position of the transfer plate member 103b on the plate body 103a-1 without affecting the CT examination. The insertion plate 103a-3 is detachably connected to the upper surface of the plate body 103a-1. Preferably, a card slot is opened at the corresponding position on the upper surface of the plate body 103a-1, and the insertion plate 103a-3 can be clamped in the card slot. When the transfer plate member 103b needs to be disassembled, the insertion plate 103a-3 can be removed. The guiding protrusion 103a-4 is perpendicular to the limit baffle, and an installation long slot 103a-5 parallel to the length direction of the guiding protrusion 103a-4 is opened on the plate body 103a-1. A plurality of rollers 103a-6 are evenly distributed along the length direction in the installation long slot 103a-5. A guiding chute 103b-3 matched with the guiding protrusion 103a-4 is opened at the bottom of the transfer plate member 103b. When transferring a patient, after removing the transfer plate member 103b and placing it on the hospital bed, adjust the transfer plate member 103b with the patient to the same height position as the sliding plate member 103a, and align the opening of the guiding chute 103b-3 at the bottom of the transfer plate member 103b with the guiding protrusion 103a-4 on the sliding plate member 103a. Then push the transfer plate member 103b to drive the patient to move onto the sliding plate member 103a together. After moving to a suitable position, fix the insertion plate 103a-3 again.

[0048] Among them, the depth of the guiding chute 103b-3 is not less than the distance between the upper surface of the guiding protrusion 103a-4 and the upper surface of the roller 103a-6. When the transfer plate 103b is placed on the guiding protrusion 103a-4 of the sliding plate 103a through the guiding chute 103b-3, the lower surface of the plate body 103a-1 can contact the upper surface of the roller 103a-6. In this way, under the rolling action of the roller 103a-6, only the transfer plate 103b needs to be pushed, and the operation is simple, time-saving and labor-saving.

[0049] The obstacle avoidance and removal structure 2 includes side rails 201 fixed to one side of the bottom of the conveying part 102, and can also be arranged on both sides. The existing side rails 201 extend out of the bed body 100 in the horizontal direction. On the one hand, it plays a role in preventing the bed body 1 from colliding. Since the side rails 201 extend outside the bed body 1, after the stretcher approaches the bed body 1, during the lifting process of the bed body 1, the side rails 201 are very likely to squeeze the stretcher. If the lifting continues, both the stretcher and the side rails 201 will be damaged, posing a safety hazard. The side rails 201 adopted in the present invention are fixed to one side of the bottom of the conveying part 102 through a plurality of fixing rods 201a. The outer part of the side rails 201 can also be cylindrical, and it has a sealed chamber 201b inside. To ensure the negative pressure effect, the cross-section of the sealed chamber 201b is preferably square. A communication hole 201c communicating with one end of the negative pressure pipe 204 is opened at the top of the sealed chamber 201b. A squeezing component 202 is inserted at the bottom of the sealed chamber 201b. The squeezing component 202 includes a squeezing rod 202a. A piston 202b is provided at one end of the squeezing rod 202a extending into the sealed chamber 201b, and a squeezing block 202c is provided at the end of the squeezing rod 202a away from the piston 202b. When the squeezing component 202 is squeezed, the squeezing rod 202a will drive the piston 202b to move upward in the sealed chamber 201b, thereby squeezing the space in the sealed chamber 201b. The squeezed air flows into the negative pressure pipe 204 through the through hole 201c. A barrier removal assembly 203 is fixed to the end of the transmission part away from the lifting part 101. The vertical movement of the squeezing component 202 drives the horizontal movement of the barrier removal assembly 203 through the side rails 201 and the negative pressure pipe 204. Specifically, the barrier removal assembly 203 includes a stop block 203a fixed to the middle position of the bottom of the transmission part. A guide cylinder 203b perpendicular to the movement direction of the squeezing rod 202a is provided on one side of the stop block 203a. A push cylinder 203c is hermetically sleeved on the outside of the guide cylinder 203b. A push block 203d is provided on the side of the push cylinder 203c away from the stop block 203a. One end of the negative pressure pipe 204 away from the sealed chamber 201b is connected to one end of the guide cylinder 203b away from the push cylinder 203c. That is, the air flowing into the negative pressure pipe 204 will pass through the guide cylinder 203b. Since the push cylinder 203c is hermetically sleeved on the outside of the guide cylinder 203b, the push cylinder 203c will move along the length direction of the guide cylinder 203b under the action of air pressure, driving the push block 203d to move in a direction perpendicular to the movement direction of the squeezing rod 202a, so as to quickly push the obstacles that have strayed into both sides out of the scanning bed area in time; there is no need for medical staff to push the obstacles out of the scanning bed, improving the detection efficiency.To ensure the horizontal movement distance of the pushing block 203d, when the pushing cylinder 203c moves along the guiding cylinder 203b to the farthest position away from the stopper 203a, the pushing space 203e of the pushing cylinder 203c is smaller than the extrusion space of the sealing chamber 201b, that is, the extrusion space generated when the piston 202b moves upward by a part in the sealing chamber 201b can satisfy the movement of the pushing cylinder 203c from the side close to the stopper 203a to the outside of the side rail 201, so as to push the obstacle located below the side rail 201 out of the bottom of the scanning bed to avoid damage to the scanning bed or the side rail, and realize automatic obstacle avoidance and obstacle removal.

[0050] It should be noted that the sealing effect should be ensured between the extrusion component 202 and the side rail 201, between the side rail 201 and the negative pressure pipeline 203, and between the side rail 201 and the obstacle removal component 203 to avoid air leakage, which may cause the obstacle removal component 203 unable to push out the obstacle. Among them, a return spring F is connected between the extrusion block 202c and the bottom of the side rail 201. After the obstacle removal component 203 pushes out the obstacle, the return spring F will drive the extrusion block 202c to return to the initial position, and the obstacle removal component 203 will also return to the initial position due to the action of air pressure.

[0051] Working principle: When in use, after the transfer plate 103b is removed and placed on the hospital bed, then the transfer plate 103b with the patient is placed on it, and the transfer plate 103b with the patient is adjusted to the same height position as the sliding plate 103a. During the adjustment process, if there is an obstacle at the bottom of the scanning bed, when the extrusion component 202 is squeezed, the extrusion rod 202a will drive the piston 202b to move upward in the sealing chamber 201b, so as to squeeze the space in the sealing chamber 201b. The squeezed air flows into the negative pressure pipe 204 through the through hole 201c, and the air will pass through the guiding cylinder 203b. Since the pushing cylinder 203c is hermetically sleeved outside the guiding cylinder 203b, the pushing cylinder 203c will move along the length direction of the guiding cylinder 203b under the action of air pressure, driving the pushing block 203d to move in a direction perpendicular to the movement direction of the extrusion rod 202a, so as to quickly push out the obstacles that have strayed into both sides from the scanning bed area in time; there is no need for medical staff to push out the obstacles from the scanning bed, improving the detection efficiency;

[0052] After the height position adjustment is completed, the opening of the guiding chute 103b-3 at the bottom of the transfer plate 103b is aligned with the guiding protrusion 103a-4 on the sliding plate 103a, and then the transfer plate 103b is pushed to drive the patient to move onto the sliding plate 103a together. After moving to the appropriate position, the insertion plate 103a-3 is fixed again to realize the transfer of the patient, with simple operation, saving time and effort.

[0053] Embodiment 2

[0054] Refer to Figure 3, in this embodiment, in order to facilitate the transfer of the patient onto the transfer plate member 103, based on the same concept as in the above-mentioned Embodiment 1, the transfer plate member 103b adopts a split design. The transfer plate member 103b includes a first transfer plate 103b-1 and a second transfer plate 103b-2. An arc-shaped protrusion 103b-4 is provided on one assembly surface of the first transfer plate 103b-1. The design of the arc-shaped protrusion 103b-4 facilitates that when the patient is flipped onto the first transfer plate 103b-1, the edge of the first transfer plate 103b-1 will not cause harm to the patient's body. In specific use, a soft pad can also be laid on the arc-shaped protrusion 103b-4 so that the patient can be flipped onto the first transfer plate 103b-1. An arc-shaped depression 103b-5 is provided on the other side surface of the second transfer plate 103b-2 that is assembled with the first transfer plate 103b-1. The arc-shaped depression 103b-5 is adapted to the arc-shaped protrusion 103b-4, so that when the first transfer plate 103b-1 and the second transfer plate 103b-2 are perfectly combined, there are no protrusions or depressions that affect the transfer of the patient. Fixing grooves 103b-6 and locking latches 103b-7 are formed near both ends of the arc-shaped protrusion 103b-4 on one assembly surface of the first transfer plate 103b-1. A fixing block 103b-8 is provided at a position corresponding to the fixing groove 103b-6 on the other side surface of the second transfer plate 103b-2 that is assembled with the first transfer plate 103b-1. The fixing block 103b-8 is inserted into the fixing groove 103b-6 and fixed by the locking latch 103b-7. Guide sliding grooves 103b-3 are formed at the bottoms of both the first transfer plate 103b-1 and the second transfer plate 103b-2.

[0055] During use, after removing the transfer plate member 103b from the sliding plate member 103a, then unlock the locking latch 103b-7 to split the transfer plate member 103b into the first transfer plate 103b-1 and the second transfer plate 103b-2. Then, after the patient is turned over on the hospital bed, place the first transfer plate 103b-1 with the arc-shaped protrusion 103b-4 behind the patient, and then turn the patient over onto the first transfer plate 103b-1. At this time, assemble the second transfer plate 103b-2 with the first transfer plate 103b-1, and the patient can lie flat on the transfer plate member 103b, realizing the transfer of the patient onto the transfer plate member 103b without the need to carry the patient multiple times, effectively avoiding secondary harm to the patient.

[0056] Embodiment 3

[0057] Refer to Figure 4In this embodiment, in order to solve the problem of arm clamping during the translation of the scanning bed into the interior of the CT inspection device, based on the same concept as the above-mentioned embodiment 1, the automatic obstacle avoidance and obstacle removal CT multifunctional scanning bed also includes a clamping arm structure 103c provided on the limit baffle. The clamping arm structure 103c includes a clamping arm ring body 103c-1, one end of which is rotatably connected to the upper surface of the limit baffle, one end of the limit baffle is provided with a limit socket 103c-2, and a blocking plate 103c-3 is inserted in the limit socket 103c-2. When the end of the clamping arm ring body 103c-1 away from the limit baffle contacts the surface of the transfer plate 103b, the blocking plate 103c-3 limits the rotation of the clamping arm ring body 103c-1.

[0058] When the patient is placed on the transfer plate 103b, the blocking plate 103c-3 is moved to cancel the restriction of the blocking plate 103c-3 on the clamp arm ring 103c-1, and then the clamp arm ring 103c-1 is rotated. The clamp arm ring 103c-1 limits the patient's arm to avoid the patient moving around or placing his arm improperly during the examination. The arm may be clamped when the scanning bed is translated into the CT examination equipment. The inner diameter of the clamp arm ring 103c-1 can meet the requirements of most arms of different thicknesses as much as possible. When the clamp arm ring 103c-1 is rotated to one end and contacts the surface of the transfer plate 103b, the patient's arm is limited. At this time, the blocking plate 103c-3 is moved to limit the rotation of the clamp arm ring 103c-1, that is, the opening and closing operations of the clamp arm ring 103c-1 are also very convenient.

[0059] Embodiment 4

[0060] Reference Figure 6 In this embodiment, in order to control the lifting of the scanning bed and avoid damage to the scanning bed or the side rails, based on the same concept as the above-mentioned embodiment 1, the automatic obstacle avoidance and obstacle removal type CT multifunctional scanning bed also includes a pressure sensor 104 on the lower surface of the extrusion block 202c. The pressure sensor 104 can be a sheet pressure sensor, which is fixed on the force-bearing surface of the extrusion block 202c. The abnormal signal is detected by pressure sensing and sent to the control end. The control end controls the lifting part 101 to stop moving or issue an alarm according to the signal. It should be noted here that the abnormal signal detected by the pressure sensor can be a situation where the obstacle removal component 203 cannot push out the obstacle due to air leakage, or it can be a situation where the obstacle cannot be pushed out. In the former case, the pressure signal is a process of first increasing and then decreasing, and in the latter case, the pressure signal is a process of always increasing. Based on the embodiment 1, the normal pressure sensing detection should be gradually increasing and then disappearing. The detection of abnormal signals can be realized through program control, and they can be sensed in time, and the lifting and lowering of the scanning bed can be controlled to avoid damage to the scanning bed or the side rails.

[0061] The above are all preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby. Therefore, all equivalent changes made according to the structure, shape and principle of the present invention shall be covered within the protection scope of the present invention.

Claims

1. An automatic obstacle avoidance and obstacle removal type CT multi-functional scanning bed, characterized in that: Including: A bed body, the bed body includes: a lifting part, a conveying part, and a detachable bed board installed on the conveying part. The detachable bed board includes a sliding plate member and a transfer plate member. The sliding plate member drives a human body to move horizontally into a scanner, and the transfer plate member is detachably connected to the sliding plate member; An obstacle avoidance and clearance structure, the obstacle avoidance and clearance structure includes: a side rail fixed to one side of the bottom of the conveying part, an extrusion component is provided at the bottom of the side rail, a clearance component is fixed to the end of the conveying part away from the lifting part, the extrusion component and the clearance component are connected with a negative pressure pipe, and the vertical movement of the extrusion component drives the horizontal movement of the clearance component through the side rail and the negative pressure pipe; The sliding plate member includes a plate body, and a limit baffle, a guiding protrusion, and rollers provided on the upper surface of the plate body. The limit baffle includes a fixing plate arranged along the length direction of the plate body on one side of the plate body and an inserting plate arranged along the length direction of the plate body on the other side of the plate body. The inserting plate is detachably connected to the upper surface of the plate body. The guiding protrusion is arranged perpendicular to the limit baffle. An installation long groove parallel to the length direction of the guiding protrusion is opened on the plate body, and a plurality of rollers are evenly distributed along the length direction in the installation long groove; A guiding chute matching with the guiding protrusion is opened at the bottom of the transfer plate member, and the depth of the guiding chute is not less than the distance between the upper surface of the guiding protrusion and the upper surface of the roller; The transfer plate member adopts a split design. The transfer plate member includes a first transfer plate and a second transfer plate. An arc-shaped protrusion is provided on one assembly surface of the first transfer plate, and an arc-shaped depression is provided on the side surface of the second transfer plate assembled with the first transfer plate. Fixing grooves and locking buckles are provided at both ends of the arc-shaped protrusion on one assembly surface of the first transfer plate. Fixing blocks are provided at positions corresponding to the fixing grooves on the side surface of the second transfer plate assembled with the first transfer plate. The fixing blocks are inserted into the fixing grooves and fixed by the locking buckles. The guiding chutes are opened at the bottoms of both the first transfer plate and the second transfer plate; The side rail is fixed to one side of the bottom of the conveying part through a plurality of fixing rods. There is a sealed chamber inside the side rail. A communication hole communicating with one end of the negative pressure pipe is opened at the top of the sealed chamber. The extrusion component is inserted at the bottom of the sealed chamber. The extrusion component includes an extrusion rod. A piston is provided at one end of the extrusion rod extending into the sealed chamber. An extrusion block is provided at the end of the extrusion rod away from the piston. A return spring is connected between the extrusion block and the bottom of the side rail.

2. The automatic obstacle avoidance and obstacle removal type CT multi-functional scanning bed according to claim 1, wherein: A clamping arm structure is provided on the limit baffle.

3. The automatic obstacle avoidance and obstacle removal type CT multi-functional scanning bed according to claim 2, wherein: The clamping arm structure includes a clamping arm ring body. One end of the clamping arm ring body is rotatably connected to the upper surface of the limit baffle. A limit socket is provided at one end of the limit baffle. A blocking plate is inserted into the limit socket. When one end of the clamping arm ring body away from the limit baffle contacts the surface of the transfer plate member, the blocking plate restricts the rotation of the clamping arm ring body.

4. The automatic obstacle avoidance and obstacle removal type CT multi-functional scanning bed according to claim 3, wherein: The clearance component includes a block fixed to the middle position of the bottom of the conveying part. A guiding cylinder perpendicular to the movement direction of the extrusion rod is provided on one side of the block. A push cylinder is hermetically sleeved outside the guiding cylinder. A push block is provided on the side of the push cylinder away from the block. One end of the negative pressure pipe away from the sealed chamber is connected to one end of the guiding cylinder away from the push cylinder.

5. The automatic obstacle avoidance and obstacle removal type CT multi-functional scanning bed according to claim 4, wherein: When the push cylinder moves to the farthest position away from the block along the guiding cylinder, the pushing space of the push cylinder is smaller than the extrusion space of the sealed chamber.

6. The automatic obstacle avoidance and obstacle removal type CT multi-functional scanning bed according to claim 5, characterized in that: A pressure sensor is provided on the lower surface of the extrusion block. Abnormal signals are detected by the pressure sensor and sent to the control end. The control end controls the lifting part to stop moving or issues an alarm according to the signals.

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