A patient lift assist

Abstract

The utility model discloses a kind of auxiliary patient lifting device, including ground fixed seat, bedside movable support and bed side fixed frame, the ground fixed seat is symmetrically arranged, and the top of ground fixed seat is equipped with horizontal push rod, the bed side fixed frame is between ground fixed seat, the bed side fixed frame is rotatably connected with the middle region of the outer wall of bedside movable support of one side by the support assembly arranged on its surface, the auxiliary patient lifting device of the utility model can replace medical staff manual lifting hip operation, patient hip is stably lifted 3-5cm by jacking push rod, without medical staff crossing sterile area, greatly reduce infection risk, avoid the problem that medical staff bends and exerts to cause lumbar muscle strain, and rely on scissor telescopic, horizontal push rod synchronization and the like structure, realize the different functions of preoperative unfolding and adhering bed surface, stable lifting during operation, postoperative folding storage, guarantee the stability in operation process, provide non-interference operation space for operation, improve overall operation efficiency.

Description

Technical Field

[0001] This utility model mainly relates to the field of surgical aids, specifically a patient lifter. Background Technology

[0002] In the field of surgery, perineal and abdominoplasty procedures cover multiple subspecialties such as colorectal surgery, urology, and obstetrics and gynecology. They are mainly used to treat diseases of the perineum (the area below the pelvic diaphragm that includes the anus, urethra, external genitalia, etc.) or rectal cancer, perineal tumors, and endocrine and urogenital diseases that require a combined abdominal and perineal approach. These procedures often use the lithotomy position to fully expose the surgical area.

[0003] In perineal and abdominoperineal surgeries performed in the lithotomy position, nurses and medical staff must assist the patient in assuming this position before anesthesia. After anesthesia takes effect, the patient's muscles are completely relaxed and they lose the ability to move independently, yet the hips must be raised to allow for the placement of sterile drapes. However, in current operating rooms, nurses often have to reach their hands to the patient's thighs to lift the buttocks to assist the surgeon in placing the drapes. This procedure has significant drawbacks. First, the nurse's hands inevitably cross the sterile area, easily disrupting the sterile surgical environment and increasing the risk of infection. Second, if the nurse is not strong enough, it is often difficult to effectively lift the patient's buttocks, causing the sterile drapes to shift or become wrinkled, affecting the surgical field of vision and the accuracy of the procedure. Furthermore, repetitive bending and lifting movements over a long period can cause continuous stress on the nurse's lower back muscles, potentially leading to occupational injuries such as lumbar muscle strain. This not only affects nursing efficiency but also poses a potential threat to the health of medical staff. Utility Model Content

[0004] This utility model addresses the problem of overly simplistic solutions in existing technologies by providing a patient lifter. This addresses the issues raised in the background section, where nurses often need to reach to the sides of the patient's thighs to lift the buttocks to assist doctors in laying sterile drapes. This inevitably causes nurses' hands to cross sterile areas, significantly increasing the risk of surgical infection. Furthermore, the repetitive bending and lifting movements over a long period put continuous pressure on the nurses' lumbar muscles, easily leading to occupational injuries such as lumbar muscle strain.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: A patient lifting device includes a ground fixation base, a headboard movable support, and a bedside fixation frame. The ground fixation bases are symmetrically arranged, and each ground fixation base has a horizontal push rod installed on its top. The bedside fixation frame is located between the ground fixation bases. The bedside fixation frame is rotatably connected to the middle area of ​​the outer wall of the headboard movable support on one side through a support component provided on its surface. A vertical push rod is installed inside the headboard movable support. A lifting seat is provided above the vertical push rod. The power output end of the vertical push rod is fixedly connected to the bottom of the lifting seat. The top of the lifting seat is rotatably connected to a support seat through lifting push rods provided at both ends. A hip support plate is provided on the top of the support seat.

[0006] Furthermore, the support assembly includes a plurality of first connecting rods and a plurality of second connecting rods. The plurality of first connecting rods are distributed at equal intervals in the lateral direction to form a first row, and the plurality of second connecting rods are distributed at equal intervals in the lateral direction to form a second row. The first connecting rods and the second connecting rods are rotatably connected one-to-one by pins.

[0007] Furthermore, on the side adjacent to the movable headboard support, the first and second connecting rods on the corresponding side are rotatably connected to the outer wall of the movable headboard support. On the side adjacent to the bedside fixing frame, the first connecting rod on the corresponding side is rotatably connected to the outer wall of the bedside fixing frame, and the second connecting rod on the corresponding side is rotatably connected to the surface of a slider, and the slider is slidably engaged in the limiting groove opened on the outer wall of the bedside fixing frame.

[0008] Furthermore, the power output end of the horizontal push rod is fixedly connected to the corresponding ends of the outer wall of the headboard movable bracket. The headboard movable bracket can be horizontally driven through the horizontal push rod, and the first connecting rod and several second connecting rods form a scissor-type telescopic structure through the headboard movable bracket.

[0009] Furthermore, the lifting seat consists of a cylindrical body and a rectangular mounting part for installing the lifting push rod. The bottom of the cylindrical body is installed with the vertical push rod, and the lifting seat slides in the corresponding grooves on both sides of the inner wall of the headstock movable bracket through the sliders at both ends of the outer wall of the cylindrical body.

[0010] Furthermore, the hip support plate is installed on the support seat via a damping hinge and can rotate relative to the support seat to form a 180° flipping structure. The hip support plate is an arc-shaped plate structure adapted to the physiological curve of the human hip.

[0011] Furthermore, the hip support plate includes a support plate and a pad. The support plate is provided with a plurality of reinforcing ribs distributed along its bottom contour to enhance structural strength. The upper surface of the support plate and the lower surface of the pad are detachably bonded by Velcro, and the upper surface of the pad is provided with a material layer with a low coefficient of friction.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This patient lifter completely replaces the traditional operation of operating room nurses manually reaching to the patient's thighs to lift the buttocks, fundamentally avoiding multiple risks and shortcomings. Driven by a lifting push rod, the hip support plate smoothly lifts the patient's hip 3-5cm without requiring medical staff to touch or cross sterile areas, significantly reducing the risk of surgical infection. Furthermore, it eliminates the need for medical staff to bend over and exert force to lift, effectively preventing occupational injuries such as lumbar muscle strain caused by long-term repetitive operations. Simultaneously, relying on the push rod's synchronous drive structure and the low-friction coefficient material layer of the support plate, it can control the hip lifting height and the support plate's removal trajectory, effectively preventing the sterile drape from shifting or wrinkling, ensuring sufficient exposure of the surgical field and precise operation, and solving the problem of insufficient strength leading to inadequate drape placement in traditional manual operations.

[0013] 2. The hip support plate adopts an arc-shaped structure adapted to the curve of the human hip, ensuring stable hip support for the patient in the lithotomy position and avoiding postoperative positional shift. At the same time, the device achieves the advantages of preoperative unfolding to fit the bed surface, smooth lifting during operation, and postoperative folding and storage through the scissor-type telescopic structure of the support components, synchronous drive at both ends of the horizontal push rod, sliding guide lifting of the lifting seat, and 180° rotation of the hip support plate. It not only ensures the stability of the patient's hip during lifting and lowering, but also allows for rapid folding after surgery, providing an undisturbed operating space for the operation and improving the overall surgical efficiency.

[0014] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the unfolded structure of this utility model; Figure 2 This is a schematic diagram of the folding structure of this utility model; Figure 3 This is a schematic diagram of the internal structure of the movable headboard support of this utility model; Figure 4 This is a schematic diagram of the support component structure of this utility model.

[0016] Numbering on the map: 1. Ground fixed seat; 2. Movable headboard support; 3. Bedside fixed frame; 4. Support assembly; 401. First connecting rod; 402. Second connecting rod; 5. Horizontal push rod; 6. Vertical push rod; 7. Lifting seat; 8. Lifting push rod; 9. Bearing seat; 10. Hip support plate. Detailed Implementation

[0017] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the disclosure of the utility model more thorough and comprehensive.

[0018] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0019] Please refer to the appendix carefully. Figure 1-4 A patient lift assist device includes a ground fixation base 1, a headboard movable support 2, and a bedside fixation frame 3. The ground fixation bases 1 are symmetrically arranged, and each ground fixation base 1 has a horizontal push rod 5 installed on its top. The bedside fixation frame 3 is located between the ground fixation bases 1. The bedside fixation frame 3 is rotatably connected to the middle area of ​​the outer wall of the headboard movable support 2 on one side through a support component 4 provided on its surface. A vertical push rod 6 is installed inside the headboard movable support 2. A lifting seat 7 is provided above the vertical push rod 6. The power output end of the vertical push rod 6 is fixedly connected to the bottom of the lifting seat 7. The top of the lifting seat 7 is rotatably connected to a support seat 9 through lifting push rods 8 provided at both ends. A hip support plate 10 is provided on the top of the support seat 9.

[0020] In this embodiment, as Figure 4 As shown, the support assembly 4 includes a plurality of first connecting rods 401 and a plurality of second connecting rods 402. The plurality of first connecting rods 401 are distributed at equal intervals in the transverse direction to form a first row, and the plurality of second connecting rods 402 are distributed at equal intervals in the transverse direction to form a second row. The first connecting rods 401 and the second connecting rods 402 are rotatably connected one-to-one by pins.

[0021] Through the above structure, the support component 4 can make the horizontal extension and retraction of the headboard movable bracket 2 more stable and smooth through the scissor-type telescopic structure.

[0022] In this embodiment, as Figure 1 , Figure 2 and Figure 4 As shown, on the side adjacent to the movable headboard support 2, the first connecting rod 401 and the second connecting rod 402 on the corresponding side are rotatably connected to the outer wall of the movable headboard support 2. On the side adjacent to the bedside fixing frame 3, the first connecting rod 401 on the corresponding side is rotatably connected to the outer wall of the bedside fixing frame 3, and the second connecting rod 402 on the corresponding side is rotatably connected to the surface of a slider, and the slider slides in a limiting groove opened on the outer wall of the bedside fixing frame 3.

[0023] With the above structure, one of the second links 402 can effectively ensure the consistency of the extension and retraction trajectory of the link assembly by means of the cooperation between the slider and the limiting groove on the surface of the bed side fixing frame 3.

[0024] In this embodiment, as Figure 1 , Figure 2 and Figure 4 As shown, the power output end of the horizontal push rod 5 is fixedly connected to the corresponding ends of the outer wall of the headstock movable bracket 2. The headstock movable bracket 2 can be horizontally driven through the horizontal push rod 5, and the first connecting rod 401 and several second connecting rods 402 form a scissor-type telescopic structure through the headstock movable bracket 2.

[0025] With the above structure, the horizontal push rod 5 is installed at both ends of the movable headboard support 2, which effectively avoids problems such as deviation and tilting of the movable headboard support 2 during horizontal movement, and ensures that it is smoothly transmitted along the preset direction, providing a stable power foundation for the subsequent extension of the hip support plate 10 to the end of the operating table or retraction to the storage position.

[0026] In this embodiment, as Figure 3 As shown, the lifting seat 7 consists of a cylindrical body and a rectangular mounting part for installing the lifting push rod 8. The bottom of the cylindrical body is installed with the vertical push rod 6, and the lifting seat 7 slides in the corresponding grooves on both sides of the inner wall of the headstock movable bracket 2 through the sliders at both ends of the outer wall of the cylindrical body.

[0027] Through the above structure, the lifting structure of the lifting seat 7 can drive the hip support plate 10 to rise and fall smoothly in the vertical direction, and can achieve precise matching of the height of the hip support plate 10 with the operating table. This allows the plate to fit smoothly against the bed surface to support the patient's hip. At the same time, it also lays a stable foundation for the smooth folding and unfolding of the hip support plate 10 in the future.

[0028] In this embodiment, as Figure 1 and Figure 2 As shown, the hip support plate 10 is installed with the bearing seat 9 via a damping hinge and can rotate relative to the bearing seat 9 to form a 180° flipping structure. The hip support plate 10 is an arc-shaped plate structure adapted to the physiological curve of the human hip.

[0029] With the above structure, the support plate has a sacral concave arc area that matches the physiological depression below the sacrum, a lateral support arc surface that matches the physiological protrusion on the outer side of the buttocks, and an ischial support depression that matches the physiological depression at the ischial tuberosity. The hip support plate 10 and the support seat 9 form a 180° flipping structure, which can be flexibly unfolded to a horizontal state before surgery to ensure that the support plate can fit tightly against the operating table surface. This facilitates the precise placement of the hip on the support plate area when the patient is transferred to the lithotomy position. When not needed, it can be quickly folded and stored without occupying the core operating space of the surgery.

[0030] In this embodiment, as Figure 3 As shown, the hip support plate 10 includes a support plate and a pad. The support plate has multiple reinforcing ribs distributed along its bottom contour to enhance structural strength. The upper surface of the support plate and the lower surface of the pad are detachably bonded by Velcro, and the upper surface of the pad is provided with a material layer with a low coefficient of friction.

[0031] The aforementioned structure utilizes a carbon fiber composite material for the support plate, combining lightweight and high rigidity. Multiple reinforcing ribs distributed along its contour at the bottom ensure structural strength while preventing the support plate from becoming too thick, thus maintaining a proper fit between the equipment and the operating table. The pad is made of medical-grade polyurethane imitation leather, offering both softness and comfort to conform to the patient's hip's physiological curve, reducing the risk of pressure sores from prolonged contact, and easy cleaning. It can be quickly disinfected post-operatively, meeting the aseptic operation standards of the operating room. Its detachable bonding to the support plate allows for modular installation, and it can be replaced individually for later wear. Furthermore, the pad's upper surface features a low-friction coefficient material layer, such as a Teflon coating, which significantly reduces frictional resistance with the patient's skin during support plate removal, ensuring a smooth removal of the support plate from under the patient's hip.

[0032] The specific operating procedure of this utility is as follows: The use of this patient lifter requires precise installation and positioning. The bedside fixation frame 3 is pre-installed in the empty area at the bottom of the foot of the lithotomy operating bed, and the ground fixation seat 1 is symmetrically anchored to the ground at both ends under the operating bed to form a stable support benchmark. However, it should be noted that when the ground fixation seat 1 is installed close to the bed, it is necessary to avoid obstructing the operating space of medical staff around the bed and causing limb collisions or interference, so as to ensure the convenience of space and the safety of operation for medical staff when carrying out patient transfer, surgical operations and other work around the bed.

[0033] The movable headboard support 2 is suspended at the bottom of the foot of the bed by a horizontal push rod 5. This area is located in the gap of the bed structure at the foot of the operating bed and is adjacent to the installation area of ​​the side fixation frame 3. It can achieve stable horizontal extension and retraction with the help of the horizontal push rod 5, and avoid interference to the operation of medical staff around the bed due to the exposed structure. At the same time, relying on the support of the operating bed base, the stability of the movable headboard support 2 during horizontal movement and subsequent load-bearing process is further improved.

[0034] In the initial stage of use, the headboard movable support 2 needs to be moved to the outside of the operating table by the horizontal push rod 5 (using the KA6 series electric push rod with a stroke of 200-300mm). During this process, the scissor structure of the support component 4 is linked synchronously. The first connecting rod 401 and the second connecting rod 402 gradually unfold from the original folded connecting rod structure. After the headboard movable support 2 moves horizontally to the appropriate position, the vertical push rod 6 installed inside the headboard movable support 2 (using the electric push rod with a stroke of 150-200mm) is activated to push the lifting seat 7 to rise vertically along the corresponding sliding grooves on both sides of the inner wall of the headboard movable support 2 until the height of the top support seat 9 is flush with the surgical operating plane at the foot of the bed.

[0035] At this time, medical staff use the damping hinge between the hip support plate 10 and the support seat 9 to flip the hip support plate 10 to a horizontal position, so that it fits tightly against the operating table surface, preparing for hip support after the patient is transferred to the operating table.

[0036] After the patient is transferred to the operating table and placed in the lithotomy position by medical staff, the hip area from below the sacrum to the ischial tuberosity naturally fits against the surface of the hip support plate 10. The lithotomy operating table has special fixing components to abduct and fix the patient's lower limbs to the side support of the bed, and the upper limbs are fixed by arm supports. After the patient's anesthesia takes effect, the lifting push rods 8 (which are high-thrust electric push rods with a load capacity of ≥150kg and a thrust level of 10kN) installed at both ends of the lifting seat 7 are activated. Through the bearing seat 9, the hip support plate 10 drives the patient's hip to be raised smoothly by 3-5cm, so that an operating gap is formed below the hip. Medical staff can quickly complete the sterile drape laying operation in the hip area within this gap.

[0037] After the sterile towel is laid out, control the lifting push rod 8 to slowly fall back, so that the patient's hip is lowered to a slightly raised state 1-2cm away from the bed, avoiding complete compression of the sterile towel, and leaving space for the hip support plate 10 to be removed.

[0038] During withdrawal, the horizontal push rod 5 is activated again to drive the headboard movable support 2 to move outward. The hip support plate 10 smoothly exits from under the patient's hip with the help of the low-friction coefficient material layer (Teflon coating) on ​​its surface until it is completely removed from the surgical area (≥30cm from the edge of the foot of the bed). Then, the medical staff flips and folds the hip support plate 10 through the damping hinge, and then activates the vertical push rod 6 to make the lifting seat 7 fall back to the initial height. The horizontal push rod 5 pulls the headboard movable support 2 to retract, and the scissor structure of the support component 4 folds and resets synchronously. Finally, the device is closed to provide an interference-free operating space for the surgery. It should be noted that the horizontal push rod 5 and the lifting push rod 8 must be used with a synchronous controller.

[0039] It should be noted that the start control button of this device is not marked in the existing drawings. In actual production and application, all function buttons have been integrated into the design. The core operation buttons such as hip lifting and tray removal are integrated into the handheld remote control, which completely avoids the trouble of bending over or stooping to operate. A foot switch can also be added as an option, which is suitable for medical staff to keep their hands sterile or to operate when they are busy holding instruments. By triggering the operation with their feet, the continuity and aseptic safety of the surgical operation can be further guaranteed.

[0040] The specifications of the ground fixing base 1 and the support component 4 are designed based on the general parameters of lithotomy operating tables and the space characteristics under the bed. The ground fixing base 1 is 350mm-550mm high and is located entirely below the surface of the operating table. Its size and height match the bottom structure of mainstream lithotomy operating tables, ensuring that it is not exposed after installation and does not interfere with the original layout of the bed. The telescopic area of ​​the support component 4 can flexibly complete the telescopic and lifting movements within the corresponding range under the operating table base. When folded, the distance from the support component 4 to the outermost point of the headboard movable support 2 is 180mm-200mm. When the support component 4 is fully extended, the distance to the outermost point of the headboard movable support 2 is 480mm-550mm. This provides ample folding and storage space for the component 2 and can accurately adapt to the movement stroke of operations such as hip lifting and tray removal. It can adapt to the base installation size, vertical height range and horizontal working space of mainstream lithotomy operating tables on the market, ensuring matching with the operating table base.

[0041] The present invention has been described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvement made by adopting the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, shall be within the protection scope of the present invention.

Claims

1. A patient lift assist device, comprising a ground fixation base (1), a headboard movable support (2), and a bedside fixation frame (3), characterized in that: The ground fixing bases (1) are symmetrically arranged, and each ground fixing base (1) is equipped with a horizontal push rod (5) on its top. The bed side fixing frame (3) is located between the ground fixing bases (1). The bed side fixing frame (3) is rotatably connected to the middle area of ​​the outer wall of the headboard movable bracket (2) on one side through the support component (4) provided on its surface. The headboard movable bracket (2) is equipped with a vertical push rod (6) inside. A lifting seat (7) is provided above the vertical push rod (6). The power output end of the vertical push rod (6) is fixedly connected to the bottom of the lifting seat (7). The top of the lifting seat (7) is rotatably connected to a bearing seat (9) through the lifting push rods (8) provided at both ends. The top of the bearing seat (9) is equipped with a hip support plate (10).

2. The patient lift assist device according to claim 1, characterized in that: The support assembly (4) includes a plurality of first connecting rods (401) and a plurality of second connecting rods (402). The plurality of first connecting rods (401) are distributed at equal intervals in the transverse direction to form a first row, and the plurality of second connecting rods (402) are distributed at equal intervals in the transverse direction to form a second row. The first connecting rods (401) and the second connecting rods (402) are rotatably connected one-to-one by pins.

3. The patient lift assist device according to claim 2, characterized in that: On the side adjacent to the movable headboard bracket (2), the first connecting rod (401) and the second connecting rod (402) on the corresponding side are rotatably connected to the outer wall of the movable headboard bracket (2). On the side adjacent to the bedside fixing frame (3), the first connecting rod (401) on the corresponding side is rotatably connected to the outer wall of the bedside fixing frame (3), and the second connecting rod (402) on the corresponding side is rotatably connected to the surface of a slider, and the slider is slidably fitted in the limiting groove opened on the outer wall of the bedside fixing frame (3).

4. The patient lift assist device according to claim 1, characterized in that: The power output end of the horizontal push rod (5) is fixedly connected to the corresponding ends of the outer wall of the headboard movable bracket (2). The headboard movable bracket (2) can be horizontally driven through the horizontal push rod (5), and the first connecting rod (401) and several second connecting rods (402) are connected through the headboard movable bracket (2) to form a scissor telescopic structure.

5. The patient lift assist device according to claim 1, characterized in that: The lifting seat (7) consists of a cylindrical body and a rectangular mounting part for installing the lifting push rod (8). The bottom of the cylindrical body is installed with the vertical push rod (6), and the lifting seat (7) slides in the corresponding grooves on both sides of the inner wall of the headstock movable bracket (2) through the sliders at both ends of the outer wall of the cylindrical body.

6. The patient lift assist device according to claim 1, characterized in that: The hip support plate (10) is installed with the bearing seat (9) via a damping hinge and can rotate relative to the bearing seat (9) to form a 180° flip structure. The hip support plate (10) is an arc-shaped plate structure adapted to the physiological curve of the human hip.

7. The patient lift assist device according to claim 1, characterized in that: The hip support plate (10) includes a support plate and a pad. The support plate is provided with a plurality of reinforcing ribs distributed along its bottom contour to enhance structural strength. The upper surface of the support plate and the lower surface of the pad are detachably bonded by Velcro, and the upper surface of the pad is provided with a material layer with a low coefficient of friction.

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