Standing-up and sitting-down assisting device for critical patient
By employing a design where an electric push rod works in conjunction with a support rod in the sitting-up assist device for critically ill patients, the high cost problem caused by the need for two electric push rods in the existing technology is solved, thus achieving the effect of reducing production costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 黄洋洋
- Filing Date
- 2025-05-16
- Publication Date
- 2026-05-08
AI Technical Summary
Existing sitting-up assistive devices for critically ill patients require two electric actuators, resulting in high production costs.
A single electric actuator, through the cooperation of a connecting frame and a support rod, drives the leg-raising frame and the standing frame to lift simultaneously, reducing the number of electric actuators required.
It enables the use of only one electric actuator to complete the leg lifting and standing movements, reducing production costs.
Smart Images

Figure CN224207008U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of sitting-up assistive devices for critically ill patients, and in particular relates to a sitting-up assistive device for critically ill patients. Background Technology
[0002] Critically ill patients in the postoperative recovery period, paralyzed patients, patients with muscle weakness, or elderly and frail patients in bed often have difficulty performing sit-up movements independently due to declining physical function. Traditional methods of assisting patients to sit up mainly rely on manual assistance from medical staff or family members, which is time-consuming and laborious.
[0003] There is a device on the market that uses an electric push rod to power a patient to sit up. This device also has a leg lift to prevent the patient from sliding down during the sitting process. However, both the leg lift and the sitting frame that pushes the patient to sit up require an electric push rod to operate. In other words, such a device requires two electric push rods to operate, which undoubtedly increases the production cost of the product. Utility Model Content
[0004] The purpose of this invention is to provide a sitting-up assist device for critically ill patients, which reduces production costs by minimizing the installation of electric push rods.
[0005] The aforementioned sitting-up assistive device for critically ill patients includes a horizontally mounted frame. A sitting frame is hinged to the top of the frame to push the patient to sit up. A leg-lifting frame is hinged to the top of the frame on the left side of the sitting frame to push the patient's thighs up. A leg-flexing frame that can swing up and down is hinged to the left side of the leg-lifting frame. An electric push rod is installed inside the frame. A connecting frame is mounted on the pushing end of the electric push rod. A first support rod that pushes the sitting frame to swing is hinged to the right end of the connecting frame. The other end of the base plate is hinged to the sitting frame. A second support rod that pushes the leg-lifting frame to swing is hinged to the left end of the connecting frame. The other end of the second support rod is hinged to the leg-lifting frame. Both the second and first support rods are inclined in the same direction.
[0006] Furthermore, the standing frame has an overall "U" shaped structure. Both ends of the standing frame are hinged to the mounting frame through the first hinge seat. A connecting column is fixed between the front and rear inner side walls of the standing frame. The swing end of the first support rod is provided with a first junction hole for the connecting column to pass through independently.
[0007] Furthermore, a lifting frame is fixed on the mounting frame between the standing frame and the leg-raising frame, with the top of the lifting frame at the same horizontal height as the standing frame.
[0008] Furthermore, the leg-raising frame includes two lifting rods distributed front to back, with a crossbeam fixed between the two lifting rods. The swing end of the second support rod has a second hinge hole for the crossbeam to pass through independently. The right ends of the two lifting rods are respectively hinged to the mounting frame through two second hinge seats.
[0009] Furthermore, the leg-bending frame has an overall "U"-shaped structure, with both ends of the leg-bending frame hinged to the left ends of the two lifting rods respectively; the left end of the leg-bending frame is provided with a pulley that can roll on the mounting frame.
[0010] Furthermore, a base plate is fixed to the bottom of the mounting frame.
[0011] Furthermore, the electric push rod is installed on the left inner side wall of the mounting frame, the connecting frame has a rectangular frame structure, the left side wall of the connecting frame is fixed to the pushing end of the electric push rod, and the hinged ends of the second support rod and the connecting frame are both hinged between the front and rear inner side walls of the connecting frame; when the leg lifting frame and the standing frame are in a horizontal state, the second support rod and the first support rod are both in an inclined state with the left side lower and the right side higher.
[0012] Compared with the prior art, the present invention has the following beneficial effects:
[0013] This invention uses a connecting frame fixed at the pushing end of the electric push rod, and utilizes the cooperation of the connecting frame, the second support rod, and the first support rod to simultaneously push the lifting of both the leg lifting frame and the standing frame, reducing the need for an electric push rod and thus lowering the overall production cost. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model;
[0015] Figure 2 for Figure 1 Front view structural diagram;
[0016] Figure 3 This is a three-dimensional structural diagram of the present invention;
[0017] Figure 4 This is an exploded structural diagram of the present invention;
[0018] Figure 5 This is a three-dimensional structural diagram of the present invention;
[0019] The components in the diagram are named as follows: 1. Mounting frame; 2. Lifting frame; 3. Top plate; 4. Connecting column; 5. First support rod; 6. First hinge seat; 7. Lifting frame; 8. Second hinge seat; 9. Leg lifting frame; 10. Crossbeam; 11. Leg bending frame; 12. Electric push rod; 13. Second support rod; 14. Connecting frame; 15. Base plate; 16. Pulley. Detailed Implementation
[0020] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention. Example
[0021] This embodiment describes a sitting-up assist device for critically ill patients, such as... Figures 1 to 5 As shown, the system includes a horizontally arranged mounting frame 1, which has a rectangular structure. A sitting frame 2 for pushing the patient to sit up is hinged to the top of the mounting frame 1. A leg-raising frame 9 for pushing the patient's thighs up is hinged to the left side of the sitting frame 2 at the top of the mounting frame 1. A leg-bending frame 11 that can swing up and down is hinged to the left side of the leg-raising frame 9. An electric push rod 12 is installed inside the mounting frame 1. A connecting frame 14 is installed at the pushing end of the electric push rod 12. A first support rod 5 for pushing the sitting frame 2 to swing is hinged to the right end of the connecting frame 14. The other end of the base plate 15 is hinged to the sitting frame 2. A second support rod 13 for pushing the leg-raising frame 9 to swing is hinged to the left end of the connecting frame 14. The other end of the second support rod 13 is hinged to the leg-raising frame 9. Both the second support rod 13 and the first support rod 5 are inclined in the same direction.
[0022] The standing frame 2 has a U-shaped structure. Both ends of the standing frame 2 are hinged to the mounting frame 1 through the first hinge seat 6. A connecting column 4 is fixed between the front and rear inner side walls of the standing frame 2. The swing end of the first support rod 5 is provided with a first junction hole for the connecting column 4 to pass through independently.
[0023] A lifting frame 7 is fixed on the mounting frame 1 between the standing frame 2 and the leg lifting frame 9. The top of the lifting frame 7 is at the same horizontal height as the standing frame 2.
[0024] The leg-raising frame 9 includes two lifting rods distributed front and back, with a crossbeam 10 fixed between the two lifting rods. The swing end of the second support rod 13 has a second hinge hole for the crossbeam 10 to pass through independently. The right ends of the two lifting rods are respectively hinged to the mounting frame 1 through two second hinge seats 8.
[0025] The leg-bending frame 11 has an overall "U" shape structure. The two ends of the leg-bending frame 11 are respectively hinged to the left ends of the two lifting rods. The left end of the leg-bending frame 11 is provided with a pulley 16 that can roll on the mounting frame 1.
[0026] like Figure 3As shown, the tops of the standing frame 2, the leg raise frame 9, and the leg flexion frame 11 are all equipped with top plates 3, and the three top plates 3 are at the same horizontal height. The top plates 3 of the three leg raise frames 9 are fixed to the tops of the two lifting rods. In use, a sponge pad that can be folded three times can be placed on the three top plates 3. The three folding positions correspond to the junctions of the standing frame 2 and the leg raise frame 7, the leg raise frame 7 and the leg raise frame 9, and the leg raise frame 9 and the leg flexion frame 11, respectively. This helps improve the patient's comfort when lying on the sponge pad.
[0027] like Figure 1 and Figure 5 As shown, the electric push rod 12 is installed on the left inner side wall of the mounting frame 1, the connecting frame 14 has a rectangular frame structure, and the hinge ends of the second support rod 13 and the connecting frame 14 are both hinged between the front and rear inner side walls of the connecting frame 14; the leg lifting frame 9 and the standing frame 2 are in a horizontal state, and the second support rod 13 and the first support rod 5 are both in a tilted state with the left side lower and the right side higher.
[0028] The bottom of the mounting frame 1 is fixed with a base plate 15. The base plate 15 helps to protect the structure inside the mounting frame 1 and can also support the second support rod 13 and the connecting frame 14 in a horizontal state.
[0029] In use, the second support rod 13 extends, pushing the connecting frame 14 to move to the right. The distance between the two hinged ends of the second support rod 13 and the first support rod 5 is shortened. With the lengths of the second support rod 13 and the first support rod 5 fixed, the leg lift frame 9 swings upward with the second hinge seat 8 as the base point, and the standing frame 2 swings upward with the first hinge seat 6 as the base point. The swinging of the standing frame 2 is used to lift the patient's upper body to assist the patient in sitting up. At the same time, the leg lift frame 9 lifts the patient's thighs, so that the patient is recessed between the leg lift frame 9 and the standing frame 2, preventing the patient from sliding to the foot of the bed.
[0030] The leg-raising bracket 9 swings upward, while the leg-bending bracket 11 is unsupported. Its swinging end is always in contact with the mounting frame 1. However, due to the raising of the leg-raising bracket 9, while the swinging end of the leg-bending bracket 11 is in contact with the mounting frame 1, it will slide along the mounting frame 1 for a distance. Therefore, a pulley 16 is installed on the left side of the leg-bending bracket 11 to reduce the friction between the leg-bending bracket 11 and the mounting frame 1 and reduce the generation of noise.
[0031] The connecting frame 14 has a rectangular frame structure, and the hinge ends of the second support rod 13 and the first support rod 5 are both pivotally hinged between the front inner wall and the rear inner wall of the connecting frame 14.
[0032] The electric push rod 12 and the connecting bracket 14 are both located in the middle between the front and rear inner walls of the mounting frame 1, which can improve the balance of forces on the front and rear sides.
[0033] During production, the length of the first support rod 5 needs to be greater than the length of the second support rod 13. This allows the swing angle of the standing frame 2 to be greater than the swing arc of the leg-raising frame 9. In addition, it is also related to the hinge position of the first support rod 5 and the standing frame 2. The closer the hinge end of the first support rod 5 is to the hinge end of the standing frame 2, the greater the swing angle of the standing frame 2 will be when the extension length of the electric push rod 12 is the same.
[0034] In practical use: Activating the electric push rod 12 drives the connecting frame 14 to move to the right. Simultaneously, the second support rod 13 and the first support rod 5 push the leg-raising frame 9 and the standing frame 2 upwards, lifting the patient's upper body and thighs respectively, thus assisting the patient in sitting up. Lifting the thighs prevents the patient from slipping, while the leg-bending frame 11 supports the patient's lower legs. This application achieves simultaneous lifting of the leg-raising frame 9 and the standing frame 2 using only one electric push rod 12, reducing the intervention of the electric push rod 12 and thus lowering the production cost of this product.
Claims
1. A sitting-up assist device for critically ill patients, comprising a horizontally arranged mounting frame (1), a sitting frame (2) for pushing the patient to sit up is hinged to the top of the mounting frame (1), a leg-lifting frame (9) for pushing the patient's thighs up is hinged to the left side of the sitting frame (2) at the top of the mounting frame (1), and a leg-flexing frame (11) for swinging up and down is hinged to the left side of the leg-lifting frame (9), characterized in that: An electric push rod (12) is installed inside the mounting frame (1). A connecting frame (14) is installed at the pushing end of the electric push rod (12). A first support rod (5) that pushes the standing frame (2) to swing is hinged to the right end of the connecting frame (14). The other end of the base plate (15) is hinged to the standing frame (2). A second support rod (13) that pushes the leg lifting frame (9) to swing is hinged to the left end of the connecting frame (14). The other end of the second support rod (13) is hinged to the leg lifting frame (9). The second support rod (13) and the first support rod (5) are both in an inclined state and their inclination directions are the same.
2. The sitting-up assist device for critically ill patients according to claim 1, characterized in that: The standing frame (2) is in the shape of a "U". The two ends of the standing frame (2) are respectively hinged to the mounting frame (1) through the first hinge seat (6). A connecting column (4) is fixed between the front and rear inner side walls of the standing frame (2). The swing end of the first support rod (5) is provided with a first junction hole for the connecting column (4) to pass through independently.
3. The sitting-up assist device for critically ill patients according to claim 1, characterized in that: A lifting frame (7) is fixed on the mounting frame (1) between the corresponding standing frame (2) and the leg lifting frame (9), and the top of the lifting frame (7) is at the same horizontal height as the standing frame (2).
4. The sitting-up assist device for critically ill patients according to claim 1, characterized in that: The leg-raising frame (9) includes two lifting rods distributed front and back, with a crossbeam (10) fixed between the two lifting rods. The swing end of the second support rod (13) is provided with a second hinge hole for the crossbeam (10) to pass through independently. The right ends of the two lifting rods are respectively hinged to the mounting frame (1) through two second hinge seats (8).
5. The sitting-up assist device for critically ill patients according to claim 3, characterized in that: The leg-bending frame (11) has a U-shaped structure. The two ends of the leg-bending frame (11) are respectively hinged to the left ends of the two lifting rods. The left end of the leg-bending frame (11) is provided with a pulley (16) that can roll on the mounting frame (1).
6. The sitting-up assist device for critically ill patients according to claim 1, characterized in that: The bottom of the mounting frame (1) is fixed with a base plate (15).
7. The sitting-up assist device for critically ill patients according to claim 1, characterized in that: The electric push rod (12) is installed on the left inner side wall of the mounting frame (1). The connecting frame (14) has a rectangular frame structure. The left side wall of the connecting frame (14) is fixed to the pushing end of the electric push rod (12). The hinged ends of the second support rod (13) and the connecting frame (14) are both hinged between the front and rear inner side walls of the connecting frame (14). When the leg lifting frame (9) and the standing frame (2) are in a horizontal state, the second support rod (13) and the first support rod (5) are both in a tilted state with the left side lower and the right side higher.