Auxiliary manipulator for medical nursing bed

Abstract

The invention relates to the field of medical nursing, in particular to a medical nursing bed auxiliary manipulator which is arranged on the bed side of a nursing bed and comprises a horizontal sliding rail, a base, a stand column and a flexible turning-over belt, the horizontal sliding rail is fixedly installed on the bed side, the base is in sliding connection with the horizontal sliding rail, and the stand column is fixedly connected with the base; an upper lifting table and a lower lifting table which can move up and down along the stand column are sequentially arranged on the stand column from top to bottom. The upper lifting table is provided with a first clamping tooth set, the lower lifting table is provided with a second clamping tooth set and a roller shaft set, the upper end of the flexible turning-over belt is connected with the first clamping tooth set, and the lower end of the flexible turning-over belt passes through a tooth gap of the second clamping tooth set, then winds into a roller shaft gap of the roller shaft set and is clamped by the roller shaft set. According to the auxiliary mechanical arm of the medical nursing bed, the problem that existing rigid turning-over is prone to causing turning-over failure or secondary injury is solved, through a series of innovative designs, the nursing efficiency is improved, the use cost is reduced, and a safer and more comfortable environment is provided for treatment and recuperation of a patient.

Description

Technical Field

[0001] The present invention relates to the field of medical care, and in particular to an auxiliary manipulator for a medical care bed. Background Art

[0002] When patients are receiving treatment or recuperating on a nursing bed, they need to turn over from time to time. The reasons are: (1) If the affected area is on the back, the dressing needs to be changed and cleaned regularly; (2) If the patient lies down for a long time, the back will be damp, which is prone to breeding bacteria and may even cause bedsores.

[0003] Traditional turning beds usually require caregivers or family members to manually turn the patient over and perform nursing operations such as changing dressings during the turning process. This process is not only time-consuming and labor-intensive, but may also cause discomfort to the patient, especially for heavier patients. The turning process often requires collaboration among multiple people, increasing the complexity and difficulty of the operation. There are also some turning beds now, which usually have a lifting mechanism on the bed board so that half of the bed board can be raised to a certain angle to assist turning over. The problems with this auxiliary bed are: (1) Since the improved part is on the bed board, the bed structure needs to be completely modified. The overall cost and use cost of the hospital purchasing this new structure bed are relatively expensive; (2) Since half of the bed board is lifted to enable people to turn over, and the two half-bed boards are connected by a rotating shaft (such as a hinged connection, an axis connection, etc.), the angle between them is easy to get stuck during the rotation process (for example, the mattress sinks and causes it to get stuck). Since half of the bed board is used to push the patient to turn over, the patient's lying position is relatively high. The patient can achieve an ideal turning over when he is located at the hinge of the bed board. If the patient's body happens to lie on the rotating bed board side or the non-rotating bed board side, the turning over may fail, or the turning over too violently may cause the patient to crawl onto the bed surface and cause secondary injury. Summary of the Invention

[0004] The present invention provides an auxiliary manipulator for a medical nursing bed, so as to solve the problem that turning over easily causes turning over failure or secondary injury in the existing bed plate type turning over.

[0005] The solution of the present invention is: a medical nursing bed auxiliary manipulator, which is arranged on the side of the nursing bed, includes a horizontal slide rail, a base, a column and a flexible turning belt, the horizontal slide rail is fixedly installed on the side of the bed, the base is slidably connected to the horizontal slide rail, and the column is fixedly connected to the base; the column is sequentially provided with an upper lifting platform and a lower lifting platform that can move up and down along the column from top to bottom; the upper lifting platform is provided with a first clamping tooth group, and the lower lifting platform is provided with a second clamping tooth group and a roller group, the upper end of the flexible turning belt is connected to the first clamping tooth group, and the lower end of the flexible turning belt passes through the tooth gap of the second clamping tooth group, winds into the roller gap of the roller group, and is clamped by the roller group.

[0006] The beneficial effects are as follows: (1) Compared with the traditional turning bed, the present invention does not require the overall transformation of the bed structure, which reduces the purchase and use costs of the hospital, is applicable to various nursing beds in existing hospitals, and has low installation costs; (2) A flexible turning belt is used to wrap the patient's body during use, and the flexible turning belt is pulled by the movement of the upper and lower lifting platforms, so that the flexible turning belt drives the wrapped patient to turn over. Compared with the traditional bed board-assisted turning, there are no high requirements for the patient's lying position. Whether the patient lies on the left or right side of the nursing bed, turning over can be achieved. Moreover, the flexible belt applies a flexible force to the patient during the whole process. The whole process is continuously controllable and the patient feels comfortable, avoiding the problem of rigid turning easily causing turning failure or secondary injury.

[0007] Furthermore, the roller assembly includes an upper roller and a lower roller, the upper roller being coaxially connected to a rotary motor. The upper roller acts as a power roller, and when rotated, it drives the clamped flexible turning belt to move, thereby adjusting the reserved length of the flexible turning belt. By driving the upper roller with the rotary motor, the speed and distance of the flexible turning belt can be precisely controlled, thereby flexibly adjusting the reserved length of the flexible turning belt during the turning process.

[0008] Furthermore, each of the first and second clamping teeth groups includes upper and lower clamping teeth, and a clamping cylinder. The lower clamping teeth are fixedly connected to the corresponding lifting platform, and the output shaft of the clamping cylinder is connected to the upper clamping teeth. This design, driven by the clamping cylinder, enables rapid and reliable clamping and release of the flexible turning strap. This design not only simplifies the operation process and improves work efficiency, but also ensures the stability and safety of the turning strap during the clamping and release process, preventing patient injury or turning failure caused by improper operation.

[0009] Furthermore, the flexible turning belt weighs 550-600 g / m2. Selecting a flexible turning belt with a weight of 550-600 g / m2 ensures both sufficient strength and durability and patient comfort. This material not only provides sufficient diagonal tension but also effectively reduces pressure on the patient's skin, minimizing pain and discomfort that may occur during turning.

[0010] Furthermore, a medicine box is fixedly connected to the upper platform, and a waste box is fixedly connected to the lower platform. This greatly facilitates the caregiver's operation during the patient's turning process. The medicine box conveniently stores the patient's medications and nursing supplies, while the waste box collects waste and discarded items. This design not only improves nursing efficiency but also maintains a clean and hygienic ward.

[0011] Furthermore, the steps of assisting the patient in turning over are as follows:

[0012] (1) Initial state: The lower end of the flexible turning belt is clamped by the second clamping tooth group and the roller group, the belt body of the flexible turning belt is arranged on the bed surface, the patient is pressed on the flexible turning belt, and then the upper end of the flexible turning belt is wrapped around the patient and then clamped between the first clamping tooth group;

[0013] (2) Turning: When the auxiliary manipulator of the medical nursing bed is installed on the right side of the nursing bed, the lower lifting platform remains stationary, the upper lifting platform moves up, and the left side of the flexible turning belt is pulled to drive the patient to turn right. Conversely, the upper lifting platform remains stationary, the lower lifting platform moves up, and the right side of the flexible turning belt is pulled to drive the patient to turn left. When the auxiliary manipulator of the medical nursing bed is installed on the left side of the nursing bed, the opposite operation is performed to realize the left and right turning of the patient.

[0014] This solution features a rationally designed and easy-to-use turning procedure, allowing for flexible left-side and right-side turning of patients based on different installation locations. Precisely controlling the movement of the lifting platform and the pull of the flexible turning belt ensures a smooth and safe turning process, preventing patient injury or discomfort caused by improper operation. This design also improves turning efficiency and reduces the workload of nursing staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a front view of an auxiliary manipulator for a medical nursing bed according to the present invention;

[0016] Figure 2 for Figure 1 Side view of (omitting the horizontal rail and base);

[0017] Figure numerals: horizontal slide rail 1, base 2, column 3, upper lifting platform 4, first clamping tooth group 4-1, medicine box 4-2, lower lifting platform 5, second clamping tooth group 5-1, dirt box 5-2, roller group 5-3, flexible turning belt 6. DETAILED DESCRIPTION

[0018] Example 1

[0019] like Figure 1 、 Figure 2 As shown, a medical care bed auxiliary manipulator includes a horizontal slide rail 1 fixedly connected to the side of the medical care bed. The horizontal slide rail 1 is equipped with a slidable base 2. The base 2 is connected to the screw of the horizontal ball screw. The output shaft of the horizontal servo motor is connected to the screw nut of the ball screw. When the horizontal servo motor is working, it drives the base 2 to move on the horizontal slide rail 1. To prevent the movement of the base 2 from affecting the patient, the base 2, the horizontal ball screw, and the horizontal servo motor are all located in a protective shell (the protective shell is installed along the side of the nursing bed to cover the base 2, the horizontal ball screw, and the horizontal servo motor. The upper end of the protective shell is a non-enclosed design, that is, a strip-shaped gap is left for the column 3 to extend and move horizontally).

[0020] A vertical column 3 is mounted on the base 2, on which two lifting platforms are mounted. From top to bottom, these are an upper lifting platform 4 and a lower lifting platform 5. The upper lifting platform 4 is connected to a first vertical ball screw and a first vertical servo motor, while the lower lifting platform 5 is connected to a second vertical ball screw and a second vertical servo motor. Each lifting platform is driven by a corresponding vertical ball screw and vertical servo motor, allowing it to move up and down along the column 3. This type of robot structure is a common design and will not be described in detail here.

[0021] To enable patient turning, this manipulator is designed with a flexible turning belt 6 and a pulling mechanism. The belt is made of a high-weave fabric with a specific weight of 550-600g (grams per square meter). This fabric provides sufficient diagonal pulling force and high tear resistance, making it suitable for pulling or turning patients.

[0022] The pulling structure includes: a first clamping tooth group 4-1 arranged on the side wall of the upper lifting platform 4, a second clamping tooth group 5-1 and a roller group 5-3 arranged on the lower lifting platform 5. The first clamping tooth group 4-1 and the second clamping tooth group 5-1 each include an upper clamping tooth, a lower clamping tooth and a clamping tooth cylinder. The lower clamping tooth is fixed to the corresponding lifting platform, and the upper clamping tooth is connected to the clamping tooth cylinder. The upper clamping tooth can be moved toward the lower clamping tooth under the drive of the clamping tooth cylinder and finally engages and clamps. In order to prevent puncture of the flexible turning belt 6, the tooth surfaces of the upper and lower clamping teeth are designed to be wavy. The second clamping tooth group 5-1 and the roller group 5-3 are fixed to the side wall of the lower lifting platform 5 from top to bottom. The roller group 5-3 includes an upper roller and a lower roller. The upper roller is coaxially connected to a rotating motor.

[0023] The lower end of the flexible turning belt 6 passes through the gap between the upper and lower teeth of the second tooth group 5-1, and then winds between the upper and lower rollers. The upper roller rotates to drive the flexible turning belt 6. When it moves to a certain position, the tooth cylinder of the second tooth group 5-1 is activated, causing its upper teeth to move and engage with the lower teeth. At this time, the lower end of the flexible turning belt 6 is clamped. When in use, the upper end of the flexible turning belt 6 needs to be clamped between the upper and lower teeth of the first tooth group 4-1.

[0024] In this embodiment, a waste box 5-2 is fixedly connected to the lower lifting platform 5 for placing used medicine tapes, medical cotton swabs and other contaminants, and a medicine box 4-2 is fixedly connected to the upper lifting platform 4 for holding medicines, sterile medicine tapes, etc. that patients need to take.

[0025] This embodiment also includes a processor, and the power supplies of the horizontal servo motor, vertical servo motor, rotary motor, clamping cylinder and other power parts are all electrically connected to the processor. The control panel of the processor can be set at the head of the nursing bed or at the side of the bed. For ease of use, a remote sensing processor can also be used.

[0026] In this embodiment, when a medical nursing bed auxiliary manipulator is installed on the right edge of the nursing bed, its use process is as follows:

[0027] 1. Initial state: The lower end of the flexible turning belt 6 is clamped by the second clamping tooth group 5-1 and the roller group 5-3. The flexible turning belt 6 is placed on the bed surface, and the patient is pressed on the flexible turning belt 6. Then the nurse or the patient's family clamps the upper end of the flexible turning belt 6 between the first clamping tooth group 4-1 at an appropriate position, and the control processor makes the upper and lower teeth engage and clamp the flexible turning belt 6.

[0028] 2. The patient turns right: Figure 2 As shown, the lower lift platform 5 remains stationary while the processor controls the upper lift platform 4 to move upward. When it reaches the appropriate position, the flexible turning belt 6 is pulled on the left side, causing the patient to turn rightward. After the patient is turned rightward, the nurse secures the patient and the processor controls the first clamping teeth group 4-1 to release the flexible turning belt 6, exposing the affected area on the patient's back. The dressing is then changed and the removed waste is temporarily placed in the waste box 5-2.

[0029] 3. Patient turns left: In the initial state, the upper lifting platform 4 remains stationary, and the processor controls the lower lifting platform 5 to move upward. When it moves to the appropriate position, the right side of the flexible turning belt 6 is pulled to drive the patient to turn left.

[0030] 4. Patient translation: When the patient turns left or right, he or she will move closer to the left or right edge of the bed and deviate from the central axis of the bed. After the dressing change is completed, the patient needs to be moved back to the center of the bed to make him or her more comfortable.

[0031] If the patient leans to the left, the second clamping teeth group 5-1 is controlled to loosen the lower end of the flexible turning belt 6, and the roller group 5-3 rotates ( Figure 2 The middle upper roller rotates clockwise, driving the flexible turning belt 6 under the patient to the right, gradually pulling the patient to the center of the bed. If the patient leans to the right, the second clamping teeth group 5-1 is controlled to release the lower end of the flexible turning belt 6. Then, the upper end of the flexible turning belt 6 is manually pulled to the left, causing the patient to shift horizontally to the left, gradually pulling the patient to the center of the bed.

[0032] Example 2:

[0033] The difference from Example 1 is that the upper and lower ends of the flexible turning belt 6 have matching nylon mother-and-child hook and loop fasteners. For example, when the medical nursing bed auxiliary manipulator is installed on the right edge of the nursing bed, if the patient leans to the right, the upper end of the flexible turning belt 6 (the end away from the horizontal slide rail 1) is wound from under the bed board of the nursing bed to the lower end of the flexible turning belt 6 (that is, the end on the same side as the horizontal slide rail 1). After the nylon mother-and-child hook and loop fasteners are bonded, the processor starts the roller group 5-3 to rotate ( Figure 2 The middle and upper rollers rotate counterclockwise), pulling the flexible turning belt 6 under the patient to the left, and gradually pulling the patient to the center of the bed.

[0034] The above is only an embodiment of the present invention, and the common knowledge such as the specific technical solutions and / or characteristics in the solution are not described in detail here. It should be pointed out that for those skilled in the art, without departing from the technical solution of the present invention, several variations and improvements can be made, which should also be regarded as the scope of protection of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the description can be used to interpret the content of the claims.

Claims

1. A medical nursing bed auxiliary manipulator, arranged on the bed side of the nursing bed, characterized in that: It includes a horizontal slide rail, a base, a column and a flexible turning belt, the horizontal slide rail is fixedly installed on the side of the bed, the base is slidably connected to the horizontal slide rail, and the column is fixedly connected to the base; the column is provided with an upper lifting platform and a lower lifting platform which can move up and down along the column from top to bottom; the upper lifting platform is provided with a first clamping tooth group, and the lower lifting platform is provided with a second clamping tooth group and a roller group, the upper end of the flexible turning belt is connected to the first clamping tooth group, and the lower end of the flexible turning belt passes through the tooth gap of the second clamping tooth group, is wound into the roller gap of the roller group, and is clamped by the roller group.

2. The medical nursing bed auxiliary manipulator according to claim 1, characterized in that: The roller shaft group comprises an upper roller shaft and a lower roller shaft, and the upper roller shaft is coaxially connected with a rotating motor.

3. The medical nursing bed auxiliary manipulator according to claim 2, characterized in that: The first clamping tooth group and the second clamping tooth group both include upper clamping teeth, lower clamping teeth and a clamping tooth cylinder. The lower clamping teeth are fixedly connected to the corresponding lifting platform, and the output shaft of the clamping tooth cylinder is connected to the upper clamping teeth.

4. The medical nursing bed auxiliary manipulator according to claim 3, characterized in that: The flexible turning belt has a gram weight of 550-600 grams per square meter.

5. The medical nursing bed auxiliary manipulator according to claim 4, characterized in that: The upper lifting platform is fixedly connected with a medicine box, and the lower lifting platform is fixedly connected with a waste box.

6. The medical nursing bed auxiliary manipulator according to claim 5, characterized in that: The steps to assist the patient in turning over are as follows: (1) Initial state: the lower end of the flexible turning belt is clamped by the second clamping tooth group and the roller group, and the belt body of the flexible turning belt is arranged on the bed surface. When the patient lies on the nursing bed, the flexible turning belt will be pressed under the body, that is, the flexible turning belt is wrapped around the patient and then clamped between the first clamping tooth group; (2) Flipping: When the auxiliary manipulator of the medical nursing bed is installed on the right side of the nursing bed, the lower lifting platform remains stationary, the upper lifting platform moves up, and the left side of the flexible turning belt is pulled to drive the patient to flip to the right. Conversely, in the initial state, the upper lifting platform remains stationary, the lower lifting platform moves up, and the right side of the flexible turning belt is pulled to drive the patient to flip to the left. When the auxiliary manipulator of the medical nursing bed is installed on the left side of the nursing bed, the opposite operation is performed to realize the left and right flipping of the patient.

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