Prone position ventilation treatment auxiliary device

Abstract

The invention discloses a prone position ventilation treatment auxiliary device, which belongs to the field of medical apparatuses and instruments, and comprises two parallel back plates provided with chutes; the first connecting shaft and the second connecting shaft are arranged between the back plates; the third connecting shaft is in sliding connection with the sliding groove; the two ends of the first telescopic rod are rotationally connected with the second connecting shaft and the third connecting shaft correspondingly; the multiple supporting units are rotationally connected to the first connecting shaft; the two ends of the second telescopic rod are rotationally connected with the supporting unit and the third connecting shaft correspondingly; when the second telescopic rod stretches out and draws back, the connected supporting unit is driven to rotate around the first connecting shaft relative to an initial position; when the first telescopic rod stretches out and draws back, the third connecting shaft connected with the first telescopic rod is driven to move, and the second telescopic rod connected with the first telescopic rod and the supporting unit synchronously rotate around the first connecting shaft. By means of the arrangement, on the premise that the whole prone position of a patient is not changed, examination, dressing change, ultrasonic examination and other operation can be conveniently conducted on the front trunk area such as the chest and the abdomen of the patient.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of medical devices, and particularly relates to a prone position ventilation treatment auxiliary device. BACKGROUND

[0002] In the intensive care unit, prone position ventilation is a key therapy for treating severe hypoxemia caused by acute respiratory distress syndrome and the like. By changing the body position of the patient, the dorsal alveoli are recollapsed to improve the ventilation / blood flow ratio, thereby effectively improving the oxygenation level of the patient.

[0003] Currently, prone position ventilation is mainly achieved in two ways in the clinic: first, a patient bed that can achieve overall turning of the patient, such as the medical bed disclosed in the prior art CN114099176A. The medical bed achieves overall supine-prone turning of the patient through linkage of the first turning plate combination, the second turning plate combination, and the intermediate plate combination. However, it is mainly used to achieve overall switching of the body position. When the patient is in the prone position, if chest and abdominal examination and dressing change, pressure sore assessment, or decompression of the swollen abdomen of the patient are needed, the patient needs to be turned back to the supine position to implement the operation, which not only interrupts the treatment, but also increases the risk of disconnection of the pipeline.

[0004] Second, a patient bed that can adjust the patient's posture in zones, such as the treatment device for automatically and accurately adjusting the body position disclosed in the prior art CN119548346A. The device divides the treatment pad into four body units, and the rising of the back and the overall lateral turning are achieved through the driving of the electric telescopic rod. However, the rotation angle of the body unit in the device is limited by the support frame, and it cannot achieve the separate exposure of the chest and abdominal regions while maintaining the prone position of the main body.

[0005] Therefore, there is an urgent need for a support platform that can expose specific parts of the body for medical operations while maintaining the stable prone position ventilation treatment state of the patient. Such a support platform is a prone position ventilation treatment auxiliary device. SUMMARY

[0006] The present application aims to solve the defects in the prior art and mainly solves the following technical problems: First, how to conveniently perform operations such as examination, dressing change, and ultrasonic examination on the front regions of the patient's chest and abdomen without changing the overall prone position of the patient, thereby avoiding interruption of ventilation treatment and reducing the risk of disconnection of the pipeline; Second, how to effectively reduce the intra-abdominal pressure of a prone position patient, especially an obese patient, to provide accommodation space for the swollen abdomen and reduce the risk of vomiting and aspiration during enteral nutrition treatment.

[0007] To solve the above technical problems, the present application adopts the following technical solutions: The utility model provides an auxiliary device for prone position ventilation treatment, comprising: a bed frame, two parallel back plates are arranged on the bed frame, and a sliding groove is arranged on each back plate; A first connecting shaft and a second connecting shaft are arranged in parallel between the two back plates and used for connecting the back plates; At least two third connecting shafts are slidably connected to the sliding grooves on the back plates; A first telescopic rod is rotatably connected to one end of the second connecting shaft and rotatably connected to one of the third connecting shafts; when the first telescopic rod is telescoped, the corresponding third connecting shaft is driven to move along the sliding groove; A plurality of support units are rotatably connected to the first connecting shaft and have an initial position of horizontal expansion; A second telescopic rod is rotatably connected to one of the support units at one end and rotatably connected to one of the third connecting shafts at the other end; When the second telescopic rod is telescoped, the support unit connected to the second telescopic rod is driven to rotate around the first connecting shaft relative to the initial position; when the first telescopic rod is telescoped, the third connecting shaft connected to the first telescopic rod is driven to move, and then all the second telescopic rods and support units connected to the third connecting shaft are synchronously driven to rotate around the first connecting shaft.

[0008] Further, the first telescopic rod and the second telescopic rod are electric push rods with a self-locking function, the electric push rod comprises an output shaft, the self-locking function is realized through a built-in worm and gear mechanism, and the output shaft can be locked at the current position when power supply is stopped.

[0009] Further, the first telescopic rod and the second telescopic rod are electric push rods; the device further comprises a control module and an energy supply module arranged between the back plates, and the electric push rods, the control module and the energy supply module are electrically connected.

[0010] Further, the support unit has a support surface for supporting a patient, and the support surface is provided with an elastic pad.

[0011] Further, at least one of the support units located in the projection area of the human torso has a size smaller than that of the support units located in the projection area of the lower limbs of the human body along the direction of the first connecting shaft, and the number of the support units located in the projection area of the lower limbs of the human body is at least two.

[0012] Further, the support unit comprises a pair of support units located in the projection area of the abdomen of the human body, and the size of the support units located in the projection area of the abdomen of the human body is greater than that of the pair of support units located in the projection area of the chest of the human body along the direction of the first connecting shaft.

[0013] Further, the pair of support units located in the chest projection area of the human body and the pair of support units located in the head projection area of the human body have equal sizes along the direction of the first connecting shaft; and the support units located in the chest projection area and the head projection area of the human body are at least two.

[0014] Further, the bed further comprises a plurality of fixing belts for fixing the patient on the support units; the fixing belts are arranged across the plurality of support units and have adjustable lengths.

[0015] Further, the bottom of the bed frame is provided with a plurality of universal wheels with locking functions.

[0016] Further, the bed further comprises a method for preventing the occurrence of pressure sores by using the bed, which comprises the following steps: S1. During the treatment of the patient in the prone position, the second telescopic rods corresponding to the plurality of support units are controlled to perform alternating telescopic movements in a predetermined order and time sequence; S2. In one cycle: S2.1. The second telescopic rods corresponding to one or more current target support units are controlled to contract for a predetermined time length, so that the current target support units are turned downward to release or reduce the support pressure on the corresponding parts of the patient's body; S2.2. After the predetermined time length, the second telescopic rods corresponding to the current target support units are controlled to extend, so that they return to the support position; S2.3. Then, the next target support unit is switched to repeat the above steps; through this cycle, the pressure on each part of the patient's body is periodically and alternately released or reduced to prevent the occurrence of pressure sores.

[0017] The present application has the following advantages: 1. The present application is provided with at least two third connecting shafts controlled on different sides, and first and second telescopic rods connected with the third connecting shafts and the support units respectively, which form a two-level control system for overall control of all the support units on one side and independent control of the posture of a certain support unit. Thus, under the premise of maintaining the prone posture of the patient unchanged, all the support units on one side can be lifted synchronously to realize overall side turning, and any support unit can be independently controlled to turn downward to expose a specific body part, effectively solving the problems of treatment interruption, high risk of pipe disconnection and large labor consumption caused by repeated turning of the patient for inspection and other operations in the traditional turning bed.

[0018] 2. This invention uses a self-locking electric push rod composed of a motor and a worm gear mechanism as the drive source for the first and second telescopic rods. Combined with the control module and power supply module located between the back plates, it can lock the output shaft and support unit in any current position by means of pure mechanical means when the power supply is stopped. This provides an absolutely reliable maintenance of the treatment posture, effectively solves the safety hazard of patient position loss due to accidental power failure or system failure, and greatly reduces the operation threshold and manpower requirements.

[0019] 3. The present invention is equipped with support units of different sizes and combined with a cross-shaped, adjustable-length fixing strap, which can provide differentiated and stable support for the patient's head, chest, abdomen and lower limbs, while ensuring that the patient can be effectively prevented from slipping during body position adjustment. This helps to solve the problem of adaptive support for patients of different body types, and takes into account both patient comfort and operation safety when achieving precise local exposure and overall posture adjustment. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein: Figure 1 This is an out-of-body view of an assembly structure of the present invention when each support unit moves away from its initial position in different directions; Figure 2 This is a front view of an assembly structure of the present invention when each support unit is disengaged from its initial position in different directions; Figure 3 for Figure 2 A schematic diagram of the cross-sectional structure along direction A. Figure 4 for Figure 2 A schematic diagram of the cross-sectional structure along the B direction; Figure 5 This is an out-of-body view of an assembly structure of the present invention with all supporting units in their initial positions; Figure 6 This is a perspective view of an assembly structure when the support unit of the present invention is connected to a fixing strap; In the diagram, 1 is the bed frame; 11 is the back panel; 111 is the slide rail; 12 is the control module; 121 is the cable; 13 is the power supply module; 14 is the caster wheel; 2 is the first connecting shaft; 3 is the second connecting shaft; 4 is the third connecting shaft; 5 is the first telescopic rod; 51 is the sleeve; 52 is the output shaft; 53 is the worm gear mechanism; 54 is the motor; 6 is the second telescopic rod; 7 is the support unit; 71 is the support surface; 711 is the elastic pad; and 712 is the fixing strap. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application are described below in detail with specific specific embodiments. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Those skilled in the art can easily obtain other advantages and effects of the present application from the content disclosed in the present specification. The present application can also be implemented or applied by using other different specific embodiments. The following embodiments and features in the embodiments can be combined with each other without conflict, and all other embodiments obtained by those skilled in the art without creative labor on the basis of the embodiments of the present application are within the scope of protection of the present application.

[0022] A prone position ventilation treatment auxiliary device, as shown in Figures 1-6 The bed frame 1 comprises two parallel back plates 11, which are preferably made of high-strength aluminum alloy. Each back plate 11 is provided with a sliding groove 111, which is specifically a vertical capsule-shaped sink or a through groove, or the sliding groove 111 is in the form of a circular arc. The bottom of the bed frame 1 is provided with a plurality of universal wheels 14 with locking function. The universal wheels 14 are preferably medical-grade double-brake universal wheels 14, which have the functions of wheel locking and direction locking. The number of universal wheels 14 is four to six, which are evenly distributed on the bottom of the bed frame 1. This makes the device easy to transfer in the ICU ward, and after reaching the designated position, the universal wheels 14 can be locked to make it a stable treatment platform.

[0023] The first connecting shaft 2 and the second connecting shaft 3 are arranged in parallel between the two back plates 11 and are used to connect the back plates 11. At least two third connecting shafts 4 are arranged. The first connecting shaft 2, the second connecting shaft 3 and the third connecting shaft 4 constitute a connecting shaft system. The two ends of the third connecting shaft 4 are slidably connected to the sliding grooves 111 on the back plates 11. The sliding third connecting shafts 4 arranged on the two sides are the core structural basis for realizing two-level control of overall linkage and local single action.

[0024] The first telescopic rod 5 is rotatably connected to one end of the second connecting shaft 3 and rotatably connected to the other end of one third connecting shaft 4. When the first telescopic rod 5 is extended or retracted, the corresponding third connecting shaft 4 is driven to move along the sliding groove 111. The number of the first telescopic rod 5 arranged on one side is at least three. A plurality of telescopic rods are arranged at equal intervals along the axial direction of the second connecting shaft 3, so that the pressure on the third connecting shaft 4 can be evenly distributed to the second connecting shaft 3 and transmitted to the bed frame 1 and the ground through the second connecting shaft 3.

[0025] A plurality of support units 7 are rotatably connected to the first connecting shaft 2. The support unit 7 is in the form of a plate structure and is rotatably connected to the first connecting shaft 2 through a hinge or a bearing. All the support units 7 jointly constitute a support plane for the patient and have an initial horizontal position.

[0026] A second telescopic rod 6, one end of the second telescopic rod 6 is rotatably connected with a support unit 7, and the other end is rotatably connected with a third connecting shaft 4; Wherein, when the second telescopic rod 6 is telescoped, the support unit 7 connected therewith is driven to rotate around the first connecting shaft 2 relative to the initial position; when the first telescopic rod 5 is telescoped, the third connecting shaft 4 connected therewith is driven to move, and in turn, all the second telescopic rods 6 and the support units 7 connected with the third connecting shaft 4 are synchronously driven to rotate around the first connecting shaft 2.

[0027] In some embodiments of the present application, as shown in Figures 1-6 The first telescopic rod 5 and the second telescopic rod 6 are electric push rods with self-locking function. The electric push rod comprises an output shaft 52. Specifically, it comprises a motor 54 that rotates when powered, which serves as the driving source for driving the electric push rod to telescope; it further comprises a worm and gear mechanism 53 that is rotatably connected with the rotor of the motor 54 and the output shaft 52 to adjust the rotating speed and for transmission; and it further comprises a sleeve 51 that houses the output shaft 52 and the worm and gear mechanism 53. The motor 54 is fixed outside the sleeve 51, and its rotor drives the worm through a shaft coupling. The worm is engaged with the worm gear fixed on the output shaft 52, which converts the rotating motion of the motor 54 into the linear motion of the output shaft 52. Since the worm and gear mechanism 53 has the characteristic of non-reversible transmission, when the power supply of the motor 54 is stopped, the output shaft 52 is mechanically locked at the current position and cannot be pushed by external force. This provides effective maintenance for the patient's treatment posture and can solve the safety hazard of out-of-control patient position caused by accidental power failure or system failure during adjustment.

[0028] The self-locking function is realized by the built-in worm and gear mechanism 53, which can lock the output shaft 52 at the current position when the power supply is stopped. By setting the electric push rod with self-locking function, the support unit 7 can be maintained at the position when the power supply of the first telescopic rod 5 and the second telescopic rod 6 is cut off, so that the patient's posture can be maintained without additional locking components.

[0029] In some embodiments of the present application, as shown in Figures 1-6As shown, the first telescopic rod 5 and the second telescopic rod 6 are electric push rods; the device further comprises a control module 12 and a power supply module 13 arranged between the back plates 11, and the electric push rods, the control module 12 and the power supply module 13 are electrically connected. By setting the driving source of the electric push rod, and the control architecture composed of the control module 12 and the power supply module 13, the automatic adjustment of the patient's posture is realized. The control module 12 and the power supply module 13 can be integrally arranged in the box between the back plates 11, and the control module 12 is electrically connected with the motors 54 of all electric push rods through the cable 121, and the power supply module 13 supplies power to the whole system. Medical staff can send instructions to the control module 12 through a wired remote control or a wireless terminal to control the action of any telescopic rod. The electric control integrated scheme is conducive to simplifying the adjustment of multi-degree-of-freedom body position, greatly reducing the operation threshold and manpower demand.

[0030] In some embodiments of the present application, as shown in Figures 1-6 As shown, the support unit 7 has a support surface 71 for supporting the patient, and the support surface 71 is provided with an elastic pad 711. The elastic pad 711 is made of medical-grade silicone or slow-rebound memory cotton, and its thickness is 3-5 cm. It can not only provide a soft touch and avoid pressure concentration, but also has a certain supporting property to prevent excessive sinking. Not only does it improve the comfort of the patient, but it also effectively prevents the occurrence of pressure sores. By increasing the elastic pad 711, which has a covering relationship with the support surface 71, it is beneficial to solve the comfort and pressure relief problems of patients in a prone position during treatment, and to provide comfortable support for patients.

[0031] In some embodiments of the present application, as shown in Figures 1-6 As shown, the size of at least one support unit 7 located in the projection area of the human torso along the direction of the first connecting shaft 2 is smaller than the support unit 7 located in the projection area of the lower limbs of the human body, and the number of the support unit 7 located in the projection area of the lower limbs of the human body is at least two. By limiting the size difference of the support units 7 in different areas, a fine module division is constructed. In addition, the smaller torso support unit 7 is beneficial to more accurately expose small areas such as unilateral chest or upper abdomen, and is beneficial to realize more fine local exposure control.

[0032] In some embodiments of the present application, as shown in Figures 1-6As shown, the support units 7 include a pair of support units 7 located in the abdominal region of the human body, and at least two support units 7 located in the abdominal region of the human body, which are larger than the pair of support units 7 located in the chest region of the human body in the direction of the first connecting shaft 2. On the basis of the length of the support units 7 corresponding to the upper limbs being smaller than the length of the support units 7 corresponding to the lower limbs, further subdivision is carried out inside the upper limbs. By setting the length of the abdominal support units 7 to be larger than the length of the chest support units 7, the chest units can be made smaller, so that when heart and lung examination or operation is needed, the target area can be exposed in smaller units and more accurately, avoiding unnecessary exposure of the entire upper torso.

[0033] In some embodiments of the present application, as shown in Figures 1-6 As shown, the pair of support units 7 located in the chest region of the human body and the pair of support units 7 located in the head region of the human body are equal in size in the direction of the first connecting shaft 2; and the support units 7 located in the chest region and the head region of the human body are each at least two. Further refinement of the structure layout, the head and chest units are designed as equal-length structures, which is helpful for forming a standardized modular design, and is also conducive to reducing the production cost of the support units 7. Among them, the length of the support units 7 located in the head and chest regions of the human body is at least 25 centimeters; the length of the support units 7 located in the abdominal region of the human body is at least 35 centimeters, which is larger than the chest units, providing ample support surface 71 for the distended abdomen, which is conducive to avoiding the edge of the support platform from pressing the patient's limbs in combination with the elastic pad 711; the length of the support units 7 located in the lower limb region of the human body is at least 65 centimeters, which is the longest unit, providing stable support for the lower limbs.

[0034] In some embodiments of the present application, as shown in Figures 1-6 As shown, it also includes a plurality of fixing belts 712 for fixing the patient on the support units 7; the fixing belts 712 are arranged across the plurality of support units 7, and the length thereof is adjustable. The fixing belts 712 are made of nylon material, which is provided with length-adjustable straps with plastic buckles. In another embodiment, the fixing belts 712 are medical spandex belts with a certain elasticity. In use, the fixing belts 712 should be arranged across the patient's thighs, hips and upper back. When adjusting the posture such as unilateral lifting, the constraint force balances the sliding component force generated by the patient's gravity, fundamentally preventing the patient's body from sliding, and ensuring the safety of the operation.

[0035] In addition, a method for preventing the occurrence of pressure ulcers by using the device is also included, which comprises the following steps: S1. During the treatment of the patient in a prone position, control the second telescopic rods 6 corresponding to the plurality of support units 7 to perform alternating telescopic motion in a predetermined order and timing; S2. In one cycle: S2.1, control the second telescopic rod 6 corresponding to the one or more current target support units 7 to retract for a predetermined time length, so that the current target support units 7 rotate downward to release or reduce the support pressure on the corresponding part of the patient's body; S2.2, after the predetermined time length, control the second telescopic rod 6 corresponding to the current target support units 7 to extend, so that it returns to the support position; S2.3, then, switch to the next target support unit 7 and repeat the above steps; through this cycle, the pressure on each part of the patient's body is periodically and alternately released or reduced to prevent the occurrence of pressure sores. Without turning over and without interrupting the ventilation treatment, the pressure sores are actively prevented. The alternating telescopic movement is performed in the direction from the patient's head to the lower limbs or from the lower limbs to the head. In one cycle, the current target support units 7 that move simultaneously are non-adjacent support units 7.

Claims

1. A prone position ventilation treatment aid, characterized in that, The bed frame comprises two parallel back plates, each of which is provided with a sliding groove; A first connecting shaft and a second connecting shaft are arranged in parallel between the two back plates to connect the back plates; At least two third connecting shafts are slidably connected to the sliding grooves on the back plates; A first telescopic rod is rotatably connected to one end of the second connecting shaft and rotatably connected to one of the third connecting shafts; when the first telescopic rod is extended or retracted, it drives the corresponding third connecting shaft to move along the sliding groove; A plurality of support units are rotatably connected to the first connecting shaft and have an initial position of horizontal expansion; A second telescopic rod is rotatably connected to one of the support units at one end and rotatably connected to one of the third connecting shafts at the other end; Wherein, when the second telescopic rod is extended or retracted, it drives the support unit connected thereto to rotate around the first connecting shaft relative to the initial position; when the first telescopic rod is extended or retracted, it drives the third connecting shaft connected thereto to move, thereby driving all the second telescopic rods and support units connected to the third connecting shaft to rotate around the first connecting shaft synchronously. The first telescopic rod and the second telescopic rod are electric push rods with self-locking function, the electric push rod comprises an output shaft, and the self-locking function is realized by an internal worm and gear mechanism. When the power supply is stopped, the output shaft can be locked at the current position.

2. A prone positioning ventilation treatment auxiliary device according to claim 1, characterized in that, The first telescopic rod and the second telescopic rod are electric push rods; the device further comprises a control module and an energy supply module arranged between the back plates, and the electric push rods, the control module and the energy supply module are electrically connected.

3. A prone positioning ventilation treatment aid according to claim 2, wherein, The support unit has a support surface for supporting the patient, and the support surface is provided with an elastic pad.

4. The prone positioning therapy auxiliary device according to claim 1, characterized in that, At least one of the support units located in the projection area of the human torso has a size smaller than the support units located in the projection area of the lower limbs of the human body along the direction of the first connecting shaft, and the number of support units located in the projection area of the lower limbs of the human body is at least two.

5. The prone positioning therapy auxiliary device according to claim 1, wherein, The support unit comprises a pair of support units located in the projection area of the human abdomen, and the number of support units located in the projection area of the human abdomen is at least two, and the size of the support units located in the projection area of the human abdomen along the direction of the first connecting shaft is greater than that of the pair of support units located in the projection area of the human chest.

6. A prone positioning ventilation treatment aid according to claim 5, wherein, The pair of support units located in the projection area of the human chest and the pair of support units located in the projection area of the human head have equal sizes along the direction of the first connecting shaft.

7. The prone positioning therapy auxiliary device according to claim 1, characterized in that, The number of support units located in the projection area of the human chest and the projection area of the human head is at least two. Further comprising a plurality of fixing belts for fixing the patient on the support units; the fixing belts are arranged across the plurality of support units and have adjustable lengths.

8. The prone positioning therapy auxiliary device according to claim 1, wherein, The bottom of the bed frame is provided with a plurality of universal wheels with locking function.

9. The prone positioning therapy auxiliary device according to claim 1, wherein, The steps include:

10. A pressure sore prevention method using the prone position ventilation treatment auxiliary device according to claim 1, characterized by, S1. During the treatment of the patient in the prone position, control the second telescopic rods corresponding to the plurality of support units to perform alternating extension and retraction movements in a predetermined order and timing; S2. In one cycle: ​ S2.1, control the second telescopic rod corresponding to one or more current target support units to contract for a predetermined time length, so that the current target support unit rotates downward to release or reduce the support pressure on the corresponding part of the patient's body; S2.2, after the end of the predetermined time length, control the second telescopic rod corresponding to the current target support unit to extend, so that it returns to the support position; S2.3, after the corresponding second telescopic rod returns to the support position, switch to the next target support unit and repeat the above steps.

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