A cardiac surgery nursing bed based on nursing cushion data acquisition
By integrating flexible sensors and a hydraulic system into the nursing bed, combined with a voice module, the automatic positional adjustment of the nursing bed is realized, solving the problem of existing nursing beds relying on manual operation and improving the comfort and rehabilitation effect of patients after heart surgery.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- THE FIRST MEDICAL CENT CHINESE PLA GENERAL HOSPITAL
- Filing Date
- 2026-05-25
- Publication Date
- 2026-06-30
AI Technical Summary
Most existing nursing bed equipment relies on medical staff to manually adjust the patient's position, and cannot automatically assist the patient in changing their lying position at regular intervals. This makes it difficult to guarantee the frequency of patient position changes after heart surgery, increasing the risk of pressure sores and pneumonia, and is not suitable for patients to operate on their own.
A cardiac surgery nursing bed based on nursing cushion data acquisition is designed. The bed monitors patient health data through flexible sensors and combines a voice module and hydraulic system to automatically assist patients in changing positions at regular intervals. The bed provides comfortable position changes by using side support airbags and flipping pads in conjunction with inclined backrests.
It enables patients to change their position at regular intervals after cardiac surgery, promoting local blood circulation, reducing the risk of pressure sores, improving breathing patency, reducing the occurrence of complications, and improving rehabilitation efficiency.
Smart Images

Figure CN122297245A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of nursing beds, and more particularly to a cardiac surgery nursing bed based on data acquisition from a nursing cushion. Background Technology
[0002] During the prolonged bed rest period after cardiac surgery, patients are often weakened due to the extensive trauma of the procedure. Maintaining a single supine or lateral position for extended periods can obstruct blood circulation in pressure points, increasing the risk of pressure sores, especially on bony prominences such as the sacrum, coccyx, and heels. Furthermore, restricted respiratory movement makes it difficult to expel pulmonary secretions, increasing the risk of hypostatic pneumonia. In addition, prolonged fixed positioning can lead to muscle atrophy, lower back pain, indigestion, and constipation. Clinical nursing guidelines recommend changing the patient's position every 2 to 4 hours and massaging pressure points to promote local blood circulation, reduce the incidence of complications, and accelerate the recovery process. However, most existing nursing bed equipment relies on manual position adjustment by medical staff and cannot automatically assist patients in changing their lying position at set times. This makes it difficult to guarantee the frequency of patient position changes when there is a shortage of medical staff. If patients attempt to change position themselves, it can easily cause discomfort after surgery and even increase the risk of secondary injury by pulling on the wound. Summary of the Invention
[0003] In order to overcome the shortcomings of existing nursing bed equipment, which mostly rely on medical staff to manually adjust the body position and cannot automatically assist patients in changing their lying position at regular intervals, this invention provides a cardiac surgery nursing bed based on nursing cushion data collection.
[0004] The technical implementation scheme of the present invention is as follows: A cardiac surgery nursing bed based on nursing cushion data acquisition includes a bed frame, a fixed cushion, a flipping cushion, a main adjustment slider, a main hydraulic push rod, a ramp cushion, a soft pillow, a control host, flexible sensors, and a voice module; the fixed cushion is fixedly connected to the bed frame; the flipping cushion is rotatably connected to the left side of the fixed cushion via a rotating shaft; the main adjustment slider is slidably connected to the flipping cushion; a main hydraulic push rod is installed on the bed frame to push the main adjustment slider to flip the flipping cushion; a ramp cushion is fixedly connected to the flipping cushion; a soft pillow is fixedly connected to the ramp cushion; a control host is fixedly connected to the ramp cushion; several flexible sensors for collecting patient health data are matrix-mounted on the soft pillow; a voice module for voice interaction is installed on the control host.
[0005] More preferably, the sloping backrest cushion has a concave structure on the side near the soft pillow.
[0006] More preferably, a side pad is fixed to the front and rear sides of the fixing pad; a response button is installed on the side pad; an emergency stop button is installed on the side pad.
[0007] More preferably, the response button is designed to be recessed downwards, while the emergency stop button is designed to be convex upwards.
[0008] More preferably, a side support airbag is fixedly attached to the side cushion; an air supply pipe is fixedly attached inside the slope cushion; a main electric control valve is installed on the air supply pipe; the main electric control valve has two outlet ends, front and rear, and the outlet ends of the main electric control valve and the side support airbag on the same side are connected by a shunt pipe.
[0009] More preferably, the side pads are provided with inclined block structures that provide lateral support.
[0010] In another preferred embodiment, the soft pillow is rotatably connected to the slope cushion via a pivot; a compression airbag is fixed to the slope cushion and is in close contact with the bottom of the slope cushion; an auxiliary electric control valve is connected to the air supply pipe; and a side air pipe is connected to the output port of the auxiliary electric control valve and the compression airbag.
[0011] More preferably, a neck support is fixed to the soft pillow.
[0012] In another, more preferred embodiment, a main support pad for supporting the patient's thigh is rotatably connected to the fixing pad via a pivot; a secondary adjustment slider is slidably connected to the main support pad; and a secondary hydraulic push rod, which pushes the secondary adjustment slider to rotate the main support pad, is rotatably connected to the fixing pad via a pivot.
[0013] More preferably, the side of the main support pad away from the flip pad is rotatably connected to a secondary support pad for supporting the patient's lower leg via a pivot.
[0014] The present invention discloses a cardiac surgery nursing bed based on nursing cushion data acquisition. The bed frame is equipped with a fixed cushion and a flipping cushion controlled by a main hydraulic push rod. The flipping cushion is equipped with a sloping backrest and a soft pillow that provide corresponding support according to the patient's different body positions. The soft pillow is also equipped with a flexible sensor for collecting patient health data. Under the voice command issued by the voice module at timed intervals, the bed bed, together with the side support airbags on the two side cushions, can assist the patient in completing body position changes at timed intervals.
[0015] The present invention provides a cardiac surgery nursing bed based on nursing cushion data acquisition, which solves the technical problem that most existing nursing bed equipment relies on medical staff to manually adjust the body position and cannot achieve timed automatic assistance for patients to change their lying position. During the bed rest period after cardiac surgery, patients can receive timed body position change assistance, which promotes local blood circulation, reduces the incidence of complications, and accelerates the recovery process. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the bed frame of the present invention; Figure 3 This is a three-dimensional structural diagram of the slope cushion of the present invention; Figure 4 This is a cross-sectional view of the three-dimensional structure of the slope cushion of the present invention; Figure 5 This is a three-dimensional structural diagram of the gas pipeline of the present invention; Figure 6 This is a three-dimensional structural diagram of the side support airbag of the present invention; Figure 7 This is a three-dimensional structural diagram of the flip pad of the present invention; Figure 8 This is a cross-sectional view of the three-dimensional structure of the fixing pad of the present invention.
[0017] Reference numerals: 1-Bed frame, 21-Fixed pad, 22-Flipping pad, 2201-Limiting groove structure, 23-Main adjusting slider, 24-Main hydraulic push rod, 31-Slope backrest cushion, 3101-Concave structure, 32-Soft pillow, 33-Control host, 34-Flexible sensor, 35-Voice module, 36-Side cushion, 3601-Tilting block structure, 37-Response button, 38-Emergency stop button, 41-Side support airbag, 42-Air supply pipe, 43-Main electric control valve, 44-Diverter pipe, 51-Compression airbag, 52-Auxiliary electric control valve, 53-Side air pipe, 54-Neck brace, 61-Main support pad, 62-Auxiliary adjusting slider, 63-Auxiliary hydraulic push rod, 64-Auxiliary support pad, 65-Slide rod. Detailed Implementation
[0018] First, it should be noted that in different described embodiments, the same components are given the same reference numerals or the same component names. The disclosure contained throughout this specification can be applied semantically to the same components having the same reference numerals or the same component names. The location descriptions selected in the specification, such as upper, lower, lateral, etc., also refer to the directly described and illustrated figures and are semantically applied to the new location when the location changes.
[0019] Example 1: A cardiac surgery nursing bed based on nursing cushion data acquisition, as described in this example... Figures 1-7As shown, the device includes a bed frame 1, a fixed pad 21, a flip-up pad 22, a main adjustment slider 23, a main hydraulic push rod 24, a ramp backrest 31, a soft pillow 32, a control host 33, a flexible sensor 34, and a voice module 35. The fixed pad 21 is fixedly attached to the bed frame 1. The left side of the fixed pad 21 is rotatably connected to the flip-up pad 22 via a pivot. The main adjustment slider 23 is slidably connected to the flip-up pad 22. The main hydraulic push rod 24 is mounted on the bed frame 1. The telescopic end of the main hydraulic push rod 24 is rotatably connected to the main adjustment slider 23 via a pivot. A limiting groove structure 2201 is formed on the flip-up pad 22. The ramp backrest 31 is placed on the limiting groove structure 2201 of the flip-up pad 22, and the ramp backrest 31 is embedded in the limiting groove structure 2201 to prevent the ramp backrest 31 from sliding to the side from the flip-up pad 22. Displacement; a soft pillow 32 is fixedly attached to the inclined back cushion 31, and the soft pillow 32 is less firm than the inclined back cushion 31, providing softer support for the patient's head and neck; a concave structure 3101 is provided on the side of the inclined back cushion 31 near the soft pillow 32, so that when the patient's head rests on the soft pillow 32, the patient's neck can be naturally accommodated in the concave structure 3101 of the inclined back cushion 31, avoiding obstruction of the patient's neck by the inclined back cushion 31; a control host 33 is fixedly attached to the inclined back cushion 31, and the control host 33 is externally connected to a power supply and a medical data center; several flexible sensors 34 for collecting patient health data are installed in a matrix on the soft pillow 32, and the flexible sensors 34 are electrically connected to the control host 33 through a circuit system; a voice module 35 is installed on the control host 33.
[0020] like Figures 3-6 As shown, a side soft pad 36 is fixed to the front and rear sides of the fixing pad 21, and the left side of the side soft pad 36 is in close contact with the surface of the flip pad 22; a response button 37 is installed on each of the two side soft pads 36, and the response button 37 is electrically connected to the control host 33 through the circuit system; an emergency stop button 38 is installed on each of the two side soft pads 36, and the emergency stop button 38 is electrically connected to the control host 33 through the circuit system; both response buttons 37 are designed with a downwardly recessed structure to avoid accidental activation of the response button 37 when the patient is blindly pressing, and the downwardly recessed structure also allows the patient to easily find the location of the response button 37, which is beneficial for the patient to perform blind operation. The two emergency stop buttons 38 are designed with an upward protruding structure, allowing the patient to quickly touch the location of the emergency stop button 38 when in an uncomfortable state, which also facilitates blind operation by the patient; each of the two side pads 36 has a side support airbag 41 fixedly attached; an air supply pipe 42 is fixedly attached inside the ramp cushion 31, and the air supply pipe 42 is connected to an external air pressure control device; a main electric control valve 43 is installed on the air supply pipe 42; the main electric control valve 43 has two outlet ends, and the outlet ends of the main electric control valve 43 and the side support airbag 41 on the same side are connected to a shunt pipe 44; each of the two side pads 36 has an inclined block structure 3601.
[0021] When the patient lies on the fixed pad 21 and the flipping pad 22, the patient's head rests on the soft pillow 32, and the back of the patient's neck is comfortably embedded in the concave structure 3101 of the inclined backrest cushion 31. The flexible sensor 34 is in close contact with the patient's head to monitor and collect multiple health data such as heart rate, respiratory rhythm, and blood pressure. The control host 33 feeds back the data collected by the flexible sensor 34 to the medical data center. The patient's body is located between the side soft pads 36 on both sides. The inclined block structure 3601 on the side soft pads 36 replaces the armrest to limit the patient's body from falling.
[0022] During prolonged periods of supine bed rest, the control unit 33 periodically reminds the patient to change to a lateral position via the voice module 35. When the patient presses the response button 37 on either side of the soft pad 36, they send a signal to the control unit 33 indicating their agreement to the position change. At this time, the main electric control valve 43 switches to a state where the gas supply pipe 42 connects to the shunt pipe 44 on the same side as the unpressed response button 37. An external air pressure control device then delivers pressurized airflow through the gas supply pipe 42, the main electric control valve 43, and the connected shunt pipe 44 to the side support airbag 41 on the same side as the unpressed response button 37. The pressurized airflow slowly inflates the side support airbag 41, simultaneously allowing the patient to slowly move their back towards the slowly inflated side support airbag 41. The slowly inflated side support airbag 41 assists the patient in turning over to the side of the pressed response button 37, thus enabling the patient to complete the lateral position change with the assistance of the side support airbag 41. This reduces pressure on the blood vessels in the patient's back and improves blood flow in the back.
[0023] During the process of assisting the patient to turn over, if the patient feels uncomfortable, the patient can press any of the emergency stop buttons 38 to stop the external air pressure control device from supplying air to the side support airbag 41, and the air in the side support airbag 41 will be released outward. The patient's back will gradually lose the support of the side support airbag 41, allowing the patient to slowly return to the initial supine position and terminate the assisted turning over.
[0024] When the flexible sensor 34 detects an obstructed breathing rhythm during prolonged bed rest, the control unit 33 activates the main hydraulic push rod 24 via the circuit system. The main hydraulic push rod 24 pushes the main adjusting slider 23, causing the flipping pad 22 to flip clockwise at a forward angle. The flipping pad 22 then pushes the inclined backrest 31 to assist in lifting the patient's back, allowing the patient to slowly transition to a semi-reclining position with their upper body supported. At this point, because the angle of the inclined backrest 31 is raised, the patient's head will leave the soft pillow 32. The patient rests their head on the sloping cushion 31, while their shoulders and neck rest on the soft pillow 32. The flexible sensor 34 on the soft pillow 32 is in close contact with the patient's shoulders and neck to monitor and collect multiple health data such as heart rate, respiratory rhythm, and blood pressure. At this time, the patient is in a semi-reclining position. Gravity causes the patient's abdominal organs to shift downward, reducing the upward pressure on the diaphragm, allowing the diaphragm to sink more fully, increasing the thoracic cavity volume, lung capacity, and tidal volume, improving gas exchange efficiency, and making the patient's breathing smoother and more stable.
[0025] When the flexible sensor 34 detects abnormalities in multiple health data such as heart rate, respiratory rhythm, and blood pressure during a prolonged period of lying flat in bed, the control host 33 proactively sends a distress signal to the management personnel of the medical data center, instructing them to contact medical staff as soon as possible to conduct medical observation on the patient.
[0026] Example 2, based on Example 1, is a cardiac surgery nursing bed based on nursing cushion data acquisition, such as... Figures 1-7 As shown, the soft pillow 32 is rotatably connected to the ramp cushion 31 via a pivot; a compression airbag 51 is fixedly attached to the ramp cushion 31, and the compression airbag 51 is tightly attached to the bottom of the ramp cushion 31; an auxiliary electric control valve 52 is connected to the air supply pipe 42, and the auxiliary electric control valve 52 is initially in the closed state; the output port of the auxiliary electric control valve 52 and the compression airbag 51 are connected together by a side air pipe 53; a neck support 54 is fixedly attached to the soft pillow 32, and the neck support 54 is initially stored in the concave structure 3101 of the ramp cushion 31.
[0027] Post-operative patients require frequent deep breathing exercises. These exercises help prevent sputum buildup in the lungs, reduce pulmonary hypoxia, and improve lung function, accelerating recovery. Therefore, the voice module 35 periodically reminds patients to perform deep breathing exercises. The main hydraulic push rod 24 pushes the main adjusting slider 23, causing the flipping pad 22 and the inclined backrest 31 to flip upwards, placing the patient in a semi-reclined position. The patient's shoulders and neck are placed on the soft pillow 32 and neck support 54. The voice module 35 then plays inhalation and exhalation voice guidance instructions in a loop, instructing the patient to perform multiple deep breathing movements in accordance with these instructions. When the wound in the heart area is not fully healed, the patient may find it difficult to perform chest-opening deep inhalation. Therefore, when the patient needs to perform chest-opening deep inhalation in accordance with the inhalation voice guidance instructions played by the voice module 35, the auxiliary electric control valve 52 switches to the open state. The external air pressure control device sequentially injects pressurized air into the compression airbag 51 through the air supply pipe 42, the auxiliary electric control valve 52, and the side air pipe 53. The pressurized air inflates the compression airbag 51 upwards, and the inflated compression airbag 51 compresses and pushes the soft pillow 32 and the neck brace 54 to flip counterclockwise from the frontal angle. This allows the soft pillow 32 and the neck brace 54 to gently push the patient's neck and back, assisting the patient in completing the chest-opening action. This allows the patient to more easily complete the deep breathing action in a chest-opening posture. When the voice module 35 plays the exhalation voice guidance command, the external air pressure control device stops supplying air into the compression airbag 51. At this time, the patient's back is pressed firmly against the soft pillow 32 and the neck brace 54, squeezing the compression airbag 51 downwards. The air in the compression airbag 51 is expelled outwards, allowing the patient's neck and back to return to their downward position. At the same time, the patient performs a deep exhalation action. By repeating the above steps, the patient can be assisted in completing the deep breathing action in a cyclical manner.
[0028] Example 3, based on Example 1, is a cardiac surgery nursing bed based on nursing cushion data acquisition, such as... Figures 1-8 As shown, a main support pad 61 for supporting the patient's thigh is rotatably connected to the fixed pad 21 via a rotating shaft; a secondary adjustment slider 62 is slidably connected to the main support pad 61; a secondary hydraulic push rod 63 is rotatably connected to the fixed pad 21 via a rotating shaft; the output shaft of the secondary hydraulic push rod 63 is rotatably connected to the secondary adjustment slider 62 via a rotating shaft; a secondary support pad 64 for supporting the patient's lower leg is rotatably connected to the side of the main support pad 61 away from the flip pad 22 via a rotating shaft; a slide rod 65 is rotatably connected to the side of the secondary support pad 64 away from the flip pad 22; the slide rod 65 is slidably connected to the fixed pad 21.
[0029] When a patient is lying flat on their back for an extended period of time, and the flexible sensor 34 detects that the patient's heart rate is high and systolic blood pressure is low, it is necessary to increase the amount of blood returning to the heart and improve the blood circulation from the heart to the legs by elevating the patient's legs. At this time, the auxiliary hydraulic push rod 63 pushes the auxiliary adjusting slider 62 to cause the main support pad 61 to flip up counterclockwise from the forward angle. At the same time, the main support pad 61 pulls the auxiliary support pad 64, causing the slide rod 65 to move towards the patient. The main support pad 61 and the auxiliary support pad 64 work together to lift the patient's legs upward. This embodiment of raising the legs by the main support pad 61 and the auxiliary support pad 64 is suitable for patients with hemodynamic instability.
[0030] Although the invention has been described with reference to exemplary embodiments, it should be understood that the invention is not limited to the disclosed exemplary embodiments. The scope of the following claims should be given the broadest interpretation so as to cover all variations and equivalent structures and functions.
Claims
1. A cardiac surgery nursing bed based on nursing back cushion data acquisition, comprising a bed frame (1); a fixed cushion (21) is fixedly connected on the bed frame (1); characterized in that, It also includes a flipping pad (22); the left side of the fixed pad (21) is rotatably connected to the flipping pad (22) via a rotating shaft; the flipping pad (22) is slidably connected to the main adjustment slider (23); the bed frame (1) is equipped with a main hydraulic push rod (24) that pushes the main adjustment slider (23) to flip the flipping pad (22); the flipping pad (22) is fixedly connected to the slope backrest (31); the slope backrest (31) is fixedly connected to the soft pillow (32); the slope backrest (31) is fixedly connected to the control host (33); the soft pillow (32) is matrix-installed with several flexible sensors (34) for collecting patient health data; the control host (33) is equipped with a voice module (35) for voice interaction.
2. The cardiac surgery nursing bed based on nursing cushion data collection according to claim 1, wherein, The sloping cushion (31) has a concave structure (3101) on the side near the soft pillow (32).
3. The cardiac surgery nursing bed based on nursing cushion data collection according to claim 1, characterized in that, A side pad (36) is fixed to the front and rear sides of the fixing pad (21); a response button (37) is installed on the side pad (36); an emergency stop button (38) is installed on the side pad (36).
4. The cardiac surgery nursing bed based on nursing cushion data collection according to claim 3, characterized in that, The response button (37) is set to a downward recessed structure; the emergency stop button (38) is set to an upward protruding structure.
5. The cardiac surgery nursing bed based on nursing cushion data collection according to claim 1, characterized in that, A side support airbag (41) is fixedly attached to the side cushion (36); an air supply pipe (42) is fixedly attached inside the slope cushion (31); a main electric control valve (43) is installed on the air supply pipe (42); the main electric control valve (43) has two outlet ends, and a shunt pipe (44) is connected between the outlet end of the main electric control valve (43) and the side support airbag (41) on the same side.
6. The cardiac surgery nursing bed based on data collection of nursing back cushion according to claim 5, wherein, The side pads (36) are provided with inclined block structures (3601) that provide lateral support.
7. The cardiac surgery nursing bed based on data collection of nursing back cushion according to claim 5, characterized in that, The soft pillow (32) is rotatably connected to the slope cushion (31) via a pivot; a compression airbag (51) is fixed on the slope cushion (31), and the compression airbag (51) is close to the bottom of the slope cushion (31); an auxiliary electric control valve (52) is connected to the air supply pipe (42); a side air pipe (53) is connected between the output port of the auxiliary electric control valve (52) and the compression airbag (51).
8. The cardiac surgery nursing bed based on nursing cushion data collection according to claim 7, characterized in that, A neck support (54) is fixed to the soft pillow (32).
9. The cardiac surgery nursing bed based on data collection of nursing back cushion according to any one of claims 1-8, characterized in that, A main support pad (61) for supporting the patient's thigh is rotatably connected to the fixed pad (21) via a rotating shaft; a secondary adjustment slider (62) is slidably connected to the main support pad (61); a secondary hydraulic push rod (63) for pushing the secondary adjustment slider (62) to rotate the main support pad (61) is rotatably connected to the fixed pad (21) via a rotating shaft.
10. The cardiac surgery nursing bed based on nursing cushion data collection according to claim 9, characterized in that, The main support pad (61) is connected to the secondary support pad (64) for supporting the patient's lower leg via a pivot on the side away from the flip pad (22).