A device for changing the lying position of a patient with severe brain trauma

Abstract

The application discloses a heavy craniocerebral trauma patient recumbent position changing device, which comprises a base, a lying plate and a guardrail, the lying plate comprises a support plate, a shoulder support plate, a waist support plate, a hip support plate and a leg support plate, and the guardrail comprises a first guardrail, a second guardrail and a third guardrail; the second guardrail is a recumbent position adjusting plate, the position of the second guardrail in the length direction of the lying plate corresponds to the waist support plate, a righting air bag is arranged on the side of the second guardrail away from the lying plate, and the bottom of the second guardrail is arranged on a sliding block through a hinge; the sliding block is connected to a differential drive device; the second guardrail can adjust the patient from a supine position to a lateral recumbent position, and the chest of the patient in the lateral recumbent position is in abutment with the vertically standing second guardrail, so that the patient is prevented from being excessively adjusted. The application can conveniently, safely and accurately adjust and keep the patient in a lateral recumbent position.

Description

Technical Field

[0001] This invention relates to the field of medical devices, specifically to a device for changing the position of patients with severe traumatic brain injury. Background Technology

[0002] Patients with severe traumatic brain injury (TBI) require prolonged bed rest and treatment after decompressive craniectomy. However, due to the lack of skull protection after decompressive craniectomy, changing position is difficult, and patients with severe TBI are often in a drowsy state or have multiple organ damage. Therefore, patients cannot adjust their position on their own and require the assistance of multiple people. Prolonged fixed supine positions often lead to secondary diseases such as pneumonia and mattress infections.

[0003] Chinese patent CN114191204B, entitled "A Multi-Posture Assisted Turning Device for Bedridden Patients and Its Implementation Method," discloses that "during the turning process, a rotating motor drives the lying board and the curved board to turn slightly together, causing the body and legs to turn together." However, in this technical solution, the lying board and the curved board can only turn slightly. During the turning, the contact position between the patient's body and the lying board remains unchanged; that is, the supine position does not change, only the angle of the body in space changes. Furthermore, in this technical solution, increasing the turning angle of the lying board may cause the patient to turn directly from a supine position to a prone position, making it impossible to keep the patient in a side-lying position, and potentially increasing the risk of the patient falling off the bed.

[0004] Therefore, how to adjust the lying position of patients with severe traumatic brain injury more conveniently, safely and accurately has become a technical problem that urgently needs to be solved in this field. Summary of the Invention

[0005] In view of the above problems, this application provides a lying position changing device for patients with severe traumatic brain injury, which solves the technical problem that the above-mentioned posture-assisted turning device cannot safely and accurately adjust the lying position of patients with severe traumatic brain injury.

[0006] To achieve the above objectives, this application provides a device for changing the position of a patient with severe traumatic brain injury, comprising:

[0007] Base;

[0008] The reclining board, set on the base, is formed by sequentially connecting a head support plate, a shoulder support plate, a waist support plate, a hip support plate, and a leg support plate.

[0009] The guardrails are symmetrically arranged on both sides of the lying board along the width direction. The guardrails include a first guardrail, a second guardrail and a third guardrail arranged sequentially along the length direction of the lying board. The two ends of the second guardrail are respectively provided with movable latches for locking with the first guardrail and the third guardrail.

[0010] The second guardrail is a reclining adjustment plate. The position of the second guardrail in the length direction of the reclining plate corresponds to the lumbar support plate. The side of the second guardrail away from the reclining plate is provided with a straightening airbag and the bottom is hinged to a slider. The slider is connected to a differential drive device. The differential drive device is used to drive the two second guardrails to move synchronously along the width direction of the lumbar support plate, or to transfer all the power to the guardrail on the other side when the movement of one of the second guardrails is blocked.

[0011] When adjusting from a supine to a lateral position, one side of the second guardrail stands upright, while the other side of the second guardrail rotates outward around the hinge to a horizontal position. The differential drive device drives both sides of the second guardrail to move synchronously towards the center of the lumbar support plate. When the upright second guardrail is blocked from moving due to its contact with the patient's lateral waist, the differential drive device transfers all power to the horizontal second guardrail, allowing it to continue moving to the lower side of the patient's lumbar region. The corrective airbag is inflated to rotate the horizontal second guardrail inward around the hinge, thus correcting the patient's position from supine to lateral, with the chest contacting the upright second guardrail.

[0012] Furthermore, the differential drive device includes a drive motor, a main gear, a planetary carrier, planetary gears, and two second gears. The two second gears are respectively threadedly connected to the slider on the corresponding side via a drive shaft. The drive motor meshes with the main gear, the main gear is fixedly connected to the planetary carrier, the planetary gears are rotatably mounted on the planetary carrier, the two second gears are arranged opposite to each other and both mesh with the planetary gears, and both the second gears and the planetary gears are bevel gears.

[0013] When the loads on the two second gears are the same, the planetary gear is stationary relative to the planet carrier, and the planet carrier rotates at the same speed as the two second gears; when the moving resistance of one of the second guardrails increases, the planetary gear rotates relative to the planet carrier, causing a speed difference between the two second gears.

[0014] Furthermore, each of the second guardrails has two or more sliders spaced apart at its bottom; each slider is located in a corresponding groove, and only one slider of each guardrail is threadedly connected to the drive shaft, and adjacent sliders are connected by a connecting rod, so that the sliders of the same second guardrail move synchronously.

[0015] Furthermore, the shoulder support plate and hip support plate are respectively provided with lifting airbags. The lifting airbags are used to inflate and lift the patient's shoulders and hips so that when adjusting from a supine position to a lateral position, the second guardrail in the horizontal direction can be moved to the lower side of the patient's waist.

[0016] Furthermore, the hip support plate and the leg support plate are connected by a telescopic mechanism, and two leg positioning pillows are spaced apart on the upper surface of the leg support plate along the width direction of the lying board; when the patient adjusts from a supine position to a lateral position, the patient's legs are laterally supported by the leg positioning pillows, and the telescopic mechanism drives the hip support plate and the leg support plate to move closer to each other, so that the patient's thighs and hips are kept in a bent position so that the patient can stay in the lateral position.

[0017] Furthermore, two head-fixing protective pillows are spaced apart on the upper surface of the head support plate along the width direction of the reclining board; the head-fixing protective pillows are filled with elastic mesh support and wrapped with a flexible silicone layer on the outside.

[0018] Furthermore, it also includes a lifting mechanism, which is mounted on the base, for adjusting the height of the reclining board.

[0019] Furthermore, it also includes a prone facial support device, which includes a Y-shaped support frame, with support plates for supporting the face respectively provided on the top of both sides of the support frame.

[0020] Furthermore, the guardrail is equipped with a limb auxiliary fixation device; the limb auxiliary fixation device includes an upper limb auxiliary fixation device and a lower limb auxiliary fixation device, the upper limb auxiliary fixation device includes an upper arm fixation plate, a forearm fixation plate and a palm support; the upper arm fixation plate, the forearm fixation plate and the palm support are connected in sequence by straps; and the upper arm fixation plate and the forearm fixation plate are respectively supported by support rods, the angle and length of the support rods are adjustable, so that the height and angle of the upper arm fixation plate and the forearm fixation plate are adjustable.

[0021] Unlike existing technologies, the above technical solution divides the guardrail into a first guardrail, a second guardrail, and a third guardrail connected in sequence. The second guardrail is equipped with a recumbent adjustment plate. Two opposing second guardrails are connected to a differential drive device, and each has a stabilizing airbag on its outer side. The differential drive device synchronously drives the two second guardrails towards the patient during recumbent adjustment. When the vertically standing second guardrail is against the patient, all power is transferred to the horizontal second guardrail, allowing it to continue moving to the lower side of the patient's waist. The stabilizing airbag inflates after the horizontal second guardrail has moved to the lower side of the patient's waist. The inflated airbag causes the horizontal second guardrail to rotate inward around the hinge, stabilizing the patient from a supine to a lateral position, with the patient's chest against the vertically standing second guardrail, thus preventing over-adjustment.

[0022] Since patients are often not lying in the exact center of the bed, the two second guardrails do not simultaneously contact the patient when moving. However, this technical solution uses a differential drive device to move the second guardrails, which allows the two second guardrails to be moved sequentially to any position in the width direction of the bed using only one drive motor. This enables the patient's position to be adjusted regardless of their lying position. Furthermore, the differential drive device allows for free power distribution during operation, making it convenient and quick to use.

[0023] The above description of the invention is merely an overview of the technical solution of this application. In order to enable those skilled in the art to better understand the technical solution of this application and to implement it based on the description and drawings, and to make the above-mentioned objectives and other objectives, features and advantages of this application easier to understand, the following description is provided in conjunction with the specific embodiments and drawings of this application. Attached Figure Description

[0024] The accompanying drawings are only used to illustrate the principles, implementation methods, applications, features, and effects of specific embodiments of the present invention and other related contents, and should not be considered as limitations on this application.

[0025] In the accompanying drawings of the instruction manual:

[0026] Figure 1 This is a schematic diagram of the device for changing the position of patients with severe traumatic brain injury as described in a specific embodiment.

[0027] Figure 2 This is a top view of the lying board and guardrail described in the specific embodiment;

[0028] Figure 3 This is a bottom view of the bottom structure of the waist support plate in a specific implementation method;

[0029] Figure 4 This is a schematic diagram of the differential drive device described in a specific embodiment;

[0030] Figure 5 This is a schematic diagram of the internal structure of the differential drive device described in a specific embodiment;

[0031] Figure 6 This is a schematic diagram of state one when adjusting from a supine to a lateral position in a specific implementation method;

[0032] Figure 7 This is a schematic diagram of state two when adjusting from a supine to a lateral position in a specific implementation method;

[0033] Figure 8 This is a schematic diagram of state three when adjusting from a supine to a lateral position in a specific implementation method;

[0034] Figure 9 This is a schematic diagram of the inflation device in a specific embodiment;

[0035] Figure 10 This is a schematic diagram of the prone facial support device described in a specific embodiment;

[0036] Figure 11 This is a schematic diagram of the upper limb auxiliary fixation device described in a specific embodiment;

[0037] The reference numerals used in the above figures are explained as follows:

[0038] 1. Base; 2. Lifting mechanism; 3. Upper structure;

[0039] 31. Lying board; 315. Head support board; 314. Shoulder support board; 313. Lumbar support board; 312. Hip support board; 311. Leg support board; 316. Prone facial support device; 3161. Support frame; 3162. Support plate; 317. Upper limb auxiliary fixation device; 3171. Upper arm fixation plate; 3173. Forearm fixation plate; 3174. Palm rest; 3175. Support rod; 3172. Straps;

[0040] 32. Guardrail; 321. First guardrail; 322. Second guardrail; 323. Third guardrail; 324. Hinge; 325. Movable latch; 326. Righting airbag;

[0041] 3111, Leg positioning pillow; 3131, Slide groove; 3151, Head fixing and protection pillow; 327, Limb auxiliary fixation position;

[0042] 320. Differential drive unit; 3201. Drive motor; 3202. Main gear; 3203. Planetary carrier; 3204. Second gear; 3205. Planetary gear; 3206. Drive shaft; 3221. Slider; 3222. Connecting rod; 3223. Guide rail;

[0043] 328. Air pump; 3141. Shoulder lift airbag; 3121. Hip lift airbag; 3261. First solenoid valve; 3142. Second solenoid valve; 3122. Third solenoid valve; Detailed Implementation

[0044] To illustrate the possible application scenarios, technical principles, implementable specific solutions, and achievable objectives and effects of this application in detail, the following description, in conjunction with the listed specific embodiments and accompanying drawings, provides a detailed explanation. The embodiments described herein are merely illustrative of the technical solutions of this application and are therefore intended to limit the scope of protection of this application.

[0045] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0046] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.

[0047] In the description of this application, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and A and B exist simultaneously. Additionally, the character " / " in this document generally indicates that the preceding and following objects have an "or" logical relationship.

[0048] In this application, terms such as “first” and “second” are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual quantity, hierarchy or order relationship between these entities or operations.

[0049] Without further limitations, the use of terms such as “comprising,” “including,” “having,” or other similar open-ended expressions in this application is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a list of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.

[0050] Similar to the understanding in the Examination Guidelines, in this application, expressions such as "greater than," "less than," and "exceeding" are understood to exclude the stated number; expressions such as "above," "below," and "within" are understood to include the stated number. Furthermore, in the description of the embodiments in this application, "multiple" means two or more (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups" and "multiple times," unless otherwise explicitly specified.

[0051] In the description of the embodiments of this application, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. They are only for the purpose of describing the specific embodiments of this application or for the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0052] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this application, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. For those skilled in the art to which this application pertains, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0053] Patients with severe traumatic brain injury or other conditions require prolonged bed rest, necessitating regular adjustments to their position to prevent secondary complications such as pneumonia and bedding infections. Current technologies only allow for minor adjustments to the bed and require two people to perform larger adjustments, thus limiting the efficiency, safety, and accuracy of patient positioning. Therefore, to achieve more efficient, safe, and accurate patient positioning, the following embodiment provides a device for changing the position of patients with severe traumatic brain injury.

[0054] Please see Figures 1 to 11 This embodiment provides a positioning device for patients with severe traumatic brain injury. This positioning device can be used in hospital wards, ICUs, and other similar locations for the rehabilitation and positioning adjustment of patients with severe traumatic brain injury or similar conditions who are unable to turn over on their own.

[0055] This embodiment of the bed-changing device for patients with severe traumatic brain injury includes: a base 1, a lifting mechanism 2, a lying board 31, and handrails; wherein, the lying board 31 and handrails are located on the upper layer of the bed-changing device for patients with severe traumatic brain injury, forming the upper structure 3; the four corners of the base 1 may be equipped with casters to facilitate movement of the bed-changing device for patients with severe traumatic brain injury. The lifting mechanism 2 is disposed on the base 1 and is used to adjust the height of the lying board 31 to facilitate the patient's getting on and off the bed. The lifting mechanism 2 can be a bed height adjustment mechanism in the prior art, specifically a lifting mechanism 2 driven by a motor and gears or racks, or a lifting mechanism 2 driven by a cylinder and an X-shaped hinged bracket. This invention does not limit the structure of the lifting mechanism 2.

[0056] like Figure 1 and Figure 2 As shown, the reclining board 31 is mounted on the base 1 via a lifting mechanism 2. The reclining board 31 is formed by sequentially connecting a head support plate 315, a shoulder support plate 314, a lumbar support plate 313, a hip support plate 312, and a leg support plate 311. When the patient lies on the reclining board 31, the patient's head is supported by the head support plate 315, and the patient's shoulders, waist, hips, and legs correspond to the shoulder support plate 314, lumbar support plate 313, hip support plate 312, and legs, respectively. Each of the head support plate 315, shoulder support plate 314, lumbar support plate 313, hip support plate 312, and leg support plate 311 includes a support plate or similar support frame with a certain support strength. To improve reclining comfort, the support plate or support frame can be covered with flexible fabric, padding, or other filling materials.

[0057] The guardrails 32 are symmetrically arranged on both sides of the lying board 31 along the width direction. The guardrails 32 include a first guardrail 321, a second guardrail 322 and a third guardrail 323 arranged sequentially along the length direction of the lying board 31. The two ends of the second guardrail 322 are respectively provided with movable latches 325 for locking with the first guardrail 321 and the third guardrail 323.

[0058] The guardrail 32 prevents the patient from falling off the bed 31, providing protection. Hinges 324 are installed at the bottom of the first guardrail 321, second guardrail 322, and third guardrail 323, allowing each guardrail to be individually flipped outwards for easy access to the bed. Movable latches 325 are installed at both ends of the second guardrail 322. When the latches 325 are engaged, the first guardrail 321, second guardrail 322, and third guardrail 323 form a single guardrail structure 32, allowing all three to be simultaneously flipped outwards or inwards. When the latches 325 are disengaged, the second guardrail 322 can be opened outwards independently. In some embodiments, end plates are provided at the front and rear ends of the lying board 31. In order to make the guardrail 32 have sufficient strength when standing, locking structures can be provided at both ends of the guardrail 32. When the guardrail 32 is standing vertically, it can be fixedly connected to the end plates of the lying board 31 through the locking structures.

[0059] In this embodiment, the second guardrail 322 is a recumbent adjustment board, that is, the second guardrail 322 assists in adjusting the patient's recumbent position. The position of the second guardrail 322 in the length direction of the lying board 31 corresponds to the lumbar support board 313. The length of the second guardrail 322 can be equal to the length of the lumbar support board 313 and the two ends can be aligned, or the length of the second guardrail 322 can be slightly less than the length of the lumbar support board 313.

[0060] The second guardrail 322 is provided with a straightening airbag 326 on the side away from the reclining board 31 and is mounted on the slider 3221 by a hinge 324 at its bottom; the slider 3221 is connected to a differential drive device 320, which is used to drive the two second guardrails 322 to move synchronously along the width direction of the waist support plate 313, or to transfer all the power to the guardrail 32 on the other side when the movement of one of the second guardrails 322 is obstructed.

[0061] In this embodiment, a hinge 324 at the bottom of the second guardrail 322 is mounted on a slider 3221. The slider 3221 is slidably mounted within a groove 3131, which is located on the waist support plate 313 and extends along the width direction. The hinge 324 is equipped with a locking structure, which locks the hinge 324, ensuring that the second guardrail 322 remains fixed in a standing position even when the movable latch 325 is open. This locking structure can be a bolt or nut locking structure. Alternatively, a locking structure can be provided between the second guardrail 322 and the slider 3221 to lock the second guardrail 322 in a standing position. For example, an electromagnet is mounted on the slider 3221, and a corresponding iron block is mounted at the bottom of the second guardrail 322. The strong force generated by the electromagnet locks the second guardrail 322 in a standing position, and when the electromagnet is de-energized, the second guardrail 322 can rotate outward around the hinge 324.

[0062] like Figure 3 and Figure 4 As shown, the differential drive device 320 is located at the bottom of the waist support plate 313, and the slider 3221 is also located at the bottom of the waist support plate 313 and extends to the top of the waist support plate 313 via a groove 3131 to facilitate connection with the second guardrail 322. To ensure the connection strength of the second guardrail 322, two grooves 3131 can be provided along the length of the waist support plate 313, and two sliders 3221 are spaced apart at the bottom of the second guardrail 322. Figure 3 As shown, each guardrail 32 has only one slider 3221 threadedly connected to the drive shaft 3206, and adjacent sliders 3221 are connected by a connecting rod 3222, so that all sliders 3221 of the same second guardrail 322 move synchronously. Sliders not connected to the drive shaft 3206 are slidably connected to the guide rail 3223, allowing these sliders not connected to the drive shaft 3206 to slide stably.

[0063] like Figure 4 and Figure 5As shown, the differential drive device 320 includes a drive motor 3201, a main gear 3202, a planetary carrier 3203, planetary gears 3205, and two second gears 3204. The two second gears 3204 are respectively threadedly connected to the corresponding slider 3221 via a transmission shaft 3206. The drive motor 3201 meshes with the main gear 3202, the main gear 3202 is fixedly connected to the planetary carrier 3203, and the planetary gears 3205 are rotatably mounted on the planetary carrier 3203. The two second gears 3204... 4. The second gear 3204 and the planetary gear 3205 are both bevel gears, and are arranged opposite to each other and mesh with the planetary gear 3205. When the two second gears 3204 are under the same load, the planetary gear 3205 is stationary relative to the planetary carrier 3203, and the planetary carrier 3203 rotates at the same speed as the two second gears 3204. When the moving resistance of one of the second guardrails 322 increases, the planetary gear 3205 rotates relative to the planetary carrier 3203, causing the two second gears 3204 to have a speed difference.

[0064] Please see Figure 6 , Figure 7 and Figure 8 This is a schematic diagram illustrating the state of the second guardrail 322 when adjusting from a supine to a lateral position, where the position and angle of the second guardrail 322 change. Figure 6 As shown, when adjusting from a supine to a lateral position, the second guardrail 322 on one side stands upright, while the second guardrail 322 on the other side flips outward around the hinge 324 to a horizontal position; the differential drive device 320 drives the second guardrails 322 on both sides to move synchronously towards the center of the lumbar support plate 313, that is, along... Figure 6 The direction indicated by the middle arrow Y; when the vertically standing second guardrail 322 is blocked from moving due to its contact with the patient's outer waist, the differential drive device 320 transmits all power to the horizontal second guardrail 322, allowing the horizontal second guardrail 322 to continue moving to the lower side of the patient's waist; the corrective airbag 326 is used to inflate and expand, causing the horizontal second guardrail 322 to rotate inward around the hinge 324 to correct its position, i.e. Figure 7 The direction indicated by the middle arrow W is used to adjust the patient from a supine position to a lateral position, with the patient's chest against the vertically standing second guardrail 322. When the patient is adjusted to the lateral position, the second guardrail 322 is... Figure 8 As shown, both second guardrails 322 stand vertically and are level with the patient's chest and back respectively, thus allowing the patient to be stably in a lateral decubitus position.

[0065] In this embodiment, the guardrail 32 is divided into a first guardrail 321, a second guardrail 322, and a third guardrail 323 connected in sequence. The second guardrail 322 is equipped with a recumbent adjustment plate. The two opposing second guardrails 322 are connected to a differential drive device 320, and a support airbag 326 is provided on the outer side of each guardrail. The differential drive device 320 is used to synchronously drive the two second guardrails 322 to move towards the patient during recumbent adjustment, and to transmit all power when the vertically standing second guardrail 322 is against the patient. The second guardrail 322 is then moved horizontally to the side below the patient's waist. The corrective airbag 326 is inflated after the second guardrail 322 has moved to the side below the patient's waist. The inflated airbag 326 causes the second guardrail 322 to rotate inward around the hinge 324, correcting the patient from a supine to a lateral position, with the patient's chest against the vertically standing second guardrail 322, thus preventing the patient from over-adjusting.

[0066] In the above embodiments, the patient positioning device for severe traumatic brain injury also adjusts the patient from a lateral decubitus position to a supine position, but the order of adjustment is the reverse of the order of adjustment from a supine to a lateral decubitus position, i.e., from... Figure 8 Status to Figure 7 state, then to Figure 6 Status, the last second guardrail 322 moved and Figure 1 The specific process will not be described in detail here, as shown in the diagram.

[0067] Since patients are often not lying in the exact center of the reclining board 31, the two second guardrails 322 do not simultaneously contact the patient when moving. In this technical solution, a differential drive device 320 is used to drive the second guardrails 322 to move. This allows the two second guardrails 322 to move to any position in the width direction of the reclining board 31 using only one drive motor 3201, thus enabling the patient's position to be adjusted regardless of their position. Furthermore, the differential drive device 320 can freely distribute power during the driving process, making it convenient and quick to operate.

[0068] like Figure 9 The diagram shows the structure of the inflation device in the positioning device for patients with severe traumatic brain injury. The corrective airbag 326 is pumped with gas by the air pump 328. The inflation line of the corrective airbag 326 is equipped with a first solenoid valve 3261, so the inflation of each corrective airbag 326 can be controlled independently.

[0069] like Figure 9As shown, the air pump 328 is also connected to a shoulder lifting airbag 3141 and a hip lifting airbag 3121 via tubing. The shoulder lifting airbag 3141 is connected to a second solenoid valve 3142, and the hip lifting airbag 3121 is connected to a third solenoid valve 3122. The second solenoid valve 3142 and the third solenoid valve 3122 are used to control the inflation of the shoulder lifting airbag 3141 and the hip lifting airbag 3121, respectively. The shoulder lifting airbag 3141 is disposed within the shoulder support plate 314, and the hip lifting airbag 3121 is disposed within the hip support plate 312. The thickness of the shoulder support plate 314 and the hip support plate 312 can be increased by the shoulder lifting airbag 3141 and the hip lifting airbag 3121. The lifting height of the shoulder lifting airbag 3141 and the hip lifting airbag 3121 can be equal to or slightly less than the thickness of the second guardrail 322, thereby lifting the patient's shoulders and hips. Therefore, when adjusting from a supine position to a lateral position, the horizontal second guardrail 322 can be moved more easily to the lower side of the patient's waist.

[0070] In one embodiment, the hip support plate 312 and the leg support plate 311 are connected by a telescopic mechanism, and two leg positioning pillows 3111 are spaced apart on the upper surface of the leg support plate 311 along the width direction of the lying board 31. When the patient adjusts from a supine position to a lateral position, the patient's legs are laterally supported by the leg positioning pillows 3111, that is, the patient's lower legs are located between the two leg positioning pillows 3111. The telescopic mechanism drives the hip support plate 312 and the leg support plate 311 to move closer to each other, so that the patient's thighs and hips are kept in a bent position to facilitate the patient remaining in the lateral position.

[0071] The telescopic mechanism can be any existing drive mechanism that moves two structural members closer or further apart; this application does not limit the specific structure of the telescopic mechanism. In this embodiment, when the patient changes from a supine position to a lateral position, the telescopic mechanism causes the patient's legs and hips to bend, thereby causing the patient's body to form a semi-curled state, which is more conducive to the patient maintaining a more stable lateral position.

[0072] like Figure 1 and Figure 2 As shown, two head-fixing protective pillows 3151 are spaced apart on the upper surface of the head support plate 315 along the width direction of the reclining board 31; the head-fixing protective pillows 3151 are filled with elastic mesh support and wrapped with a flexible silicone layer on the outside. The two head-fixing protective pillows 3151 can abut against the sides of the patient's head, thereby effectively fixing the patient's head and preventing the patient's head from losing support.

[0073] like Figure 10As shown, the above embodiment also includes a prone facial support device 316, which is used only when the patient is in a prone position. The prone facial support device 316 can be fixed to the head support plate 315, or the head support plate 315 can be replaced by the above-mentioned prone facial support device 316, which is fixed to the shoulder support plate 314.

[0074] The prone facial support device 316 includes a Y-shaped support frame 3161, with support plates 3162 for supporting the face respectively provided on the top of both sides of the support frame 3161. The support plates 3162 can be installed on the support frame 3161 using fasteners such as fixing knobs. The support plates 3162 are designed with an arc shape that conforms to the patient's face and are covered with flexible fabric or other materials. The prone facial support device 316 can effectively support the head when the patient is in a prone position.

[0075] In many cases, patients with limb injuries need to rest in a fixed posture. In one embodiment, to better immobilize the patient's limbs, the guardrail 32 is equipped with a limb auxiliary immobilization device. For example... Figure 2 As shown, limb auxiliary fixation positions 327 are provided at both ends of the guardrail 32, and limb auxiliary fixation devices are connected to the limb auxiliary fixation positions 327. The limb auxiliary fixation devices include upper limb auxiliary fixation devices 317 and lower limb auxiliary fixation devices. The upper limb auxiliary fixation device 317 includes an upper arm fixation plate 3171, a forearm fixation plate 3173, and a palm support 3174. The upper arm fixation plate 3171, the forearm fixation plate 3173, and the palm support 3174 are connected in sequence by straps 3172. The upper arm fixation plate 3171 and the forearm fixation plate 3173 are supported by support rods 3175, and the angle and length of the support rods 3175 are adjustable, so that the height and angle of the upper arm fixation plate 3171 and the forearm fixation plate 3173 are adjustable.

[0076] like Figure 11 The diagram shows the structure of the upper limb auxiliary fixation device 317. The lower limb auxiliary fixation device includes a thigh fixation plate, a calf fixation plate, and a footrest. The thigh fixation plate, calf fixation plate, and footrest are connected in sequence by straps. The structure of the lower limb auxiliary fixation device is the same as that of the upper limb auxiliary fixation device 317, and will not be described again here.

[0077] Finally, it should be noted that although the above embodiments have been described in the text and drawings of this application, this should not limit the scope of patent protection of this application. Any technical solutions that are based on the essential concept of this application and utilize the content described in the text and drawings of this application, resulting in equivalent structural or procedural substitutions or modifications, as well as the direct or indirect application of the technical solutions of the above embodiments to other related technical fields, are all included within the scope of patent protection of this application.

Claims

1. A device for changing the position of patients with severe traumatic brain injury, characterized in that, include: Base; The reclining board, set on the base, is formed by sequentially connecting a head support plate, a shoulder support plate, a waist support plate, a hip support plate, and a leg support plate. The guardrails are symmetrically arranged on both sides of the lying board along the width direction. The guardrails include a first guardrail, a second guardrail and a third guardrail arranged sequentially along the length direction of the lying board. The two ends of the second guardrail are respectively provided with movable latches for locking with the first guardrail and the third guardrail. The second guardrail is a reclining adjustment plate. The position of the second guardrail in the length direction of the reclining plate corresponds to the lumbar support plate. The side of the second guardrail away from the reclining plate is provided with a straightening airbag and the bottom is hinged to a slider. The slider is connected to a differential drive device. The differential drive device is used to drive the two second guardrails to move synchronously along the width direction of the lumbar support plate, or to transfer all the power to the guardrail on the other side when the movement of one of the second guardrails is blocked. When adjusting from a supine to a lateral position, one side of the second guardrail stands upright, while the other side of the second guardrail rotates outward around the hinge to a horizontal position. The differential drive device drives both sides of the second guardrail to move synchronously towards the center of the lumbar support plate. When the upright second guardrail is blocked from moving due to its contact with the patient's lateral waist, the differential drive device transfers all power to the horizontal second guardrail, allowing it to continue moving to the lower side of the patient's lumbar region. The corrective airbag is inflated to rotate the horizontal second guardrail inward around the hinge, thus correcting the patient's position from supine to lateral, with the chest contacting the upright second guardrail.

2. The device for changing the position of patients with severe traumatic brain injury according to claim 1, characterized in that, The differential drive device includes a drive motor, a main gear, a planetary carrier, planetary gears, and two second gears. The two second gears are respectively threadedly connected to the sliders on the corresponding sides via drive shafts. The drive motor meshes with the main gear, the main gear is fixedly connected to the planetary carrier, the planetary gears are rotatably mounted on the planetary carrier, the two second gears are arranged opposite to each other and both mesh with the planetary gears, and both the second gears and the planetary gears are bevel gears. When the loads on the two second gears are the same, the planetary gear is stationary relative to the planet carrier, and the planet carrier rotates at the same speed as the two second gears; when the moving resistance of one of the second guardrails increases, the planetary gear rotates relative to the planet carrier, causing a speed difference between the two second gears.

3. The device for changing the position of patients with severe traumatic brain injury according to claim 2, characterized in that, Each of the second guardrails has two or more sliders spaced apart at its bottom; each slider is located in a corresponding groove, and only one slider of each guardrail is threadedly connected to the drive shaft, and adjacent sliders are connected by a connecting rod, so that the sliders of the same second guardrail move synchronously.

4. The device for changing the position of patients with severe traumatic brain injury according to any one of claims 1 to 3, characterized in that, The shoulder support plate and hip support plate are each equipped with a lifting airbag. The lifting airbag is used to inflate and lift the patient's shoulder and hip so that when the patient is adjusted from a supine to a lateral position, the second guardrail in the horizontal direction can be moved to the lower side of the patient's waist.

5. The device for changing the position of patients with severe traumatic brain injury according to claim 1, characterized in that, The hip support plate and the leg support plate are connected by a telescopic mechanism, and two leg positioning pillows are spaced apart on the upper surface of the leg support plate along the width direction of the lying board. When the patient changes from a supine position to a lateral position, the patient's legs are supported laterally by the leg positioning pillows, and the telescopic mechanism drives the hip support plate and the leg support plate to move closer to each other, so that the patient's thighs and hips are kept in a bent position so that the patient can stay in the lateral position.

6. The device for changing the position of patients with severe traumatic brain injury according to claim 1, characterized in that, The upper surface of the head support plate is provided with two head-fixing protective pillows spaced apart along the width of the lying board; the head-fixing protective pillows are filled with elastic mesh support and wrapped with a flexible silicone layer on the outside.

7. The device for changing the position of patients with severe traumatic brain injury according to claim 1, characterized in that, It also includes a lifting mechanism, which is mounted on the base, for adjusting the height of the reclining board.

8. The device for changing the position of patients with severe traumatic brain injury according to claim 1, characterized in that, It also includes a prone facial support device, which includes a Y-shaped support frame, with support plates for supporting the face respectively provided on the top of both sides of the support frame.

9. The device for changing the position of patients with severe traumatic brain injury according to claim 1, characterized in that, The guardrail is equipped with a limb auxiliary fixation device; the limb auxiliary fixation device includes an upper limb auxiliary fixation device and a lower limb auxiliary fixation device. The upper limb auxiliary fixation device includes an upper arm fixation plate, a forearm fixation plate, and a palm support; the upper arm fixation plate, the forearm fixation plate, and the palm support are connected in sequence; and the upper arm fixation plate and the forearm fixation plate are respectively supported by support rods, the angle and length of which are adjustable, so that the height and angle of the upper arm fixation plate and the forearm fixation plate are adjustable.

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