Medical transfer device for moving a patient

By designing a medical transport device with a movable base mechanism, a frame, and a hoisting mechanism, the problems of large footprint and inconvenience of use of existing devices have been solved, enabling rapid and convenient patient transfer and reducing the workload of caregivers.

CN224269660UActive Publication Date: 2026-05-26THE 910TH HOSPITAL OF THE CHINESE PEOPLES LIBERATION ARMY JOINT LOGISTICS SUPPORT FORCE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
THE 910TH HOSPITAL OF THE CHINESE PEOPLES LIBERATION ARMY JOINT LOGISTICS SUPPORT FORCE
Filing Date
2025-01-22
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing patient hoisting and transport devices occupy a large space, are inconvenient to use, and affect the work efficiency and comfort of caregivers.

Method used

A medical transport device was designed, comprising a movable base mechanism, a frame, and a hoisting mechanism. The hoisting mechanism is driven to move up and down reciprocally by a power mechanism, and the combination of C-shaped and triangular structures enables rapid patient transfer.

Benefits of technology

With its simple and practical structure, the nurse only needs to push the frame of the machine to quickly locate and transfer patients, saving physical energy and improving the convenience and comfort of operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

A medical transport device for moving patients includes a movable base mechanism, a frame, a hoisting mechanism for lifting patients, and a power mechanism mounted on the frame. The power mechanism drives the hoisting mechanism to move up and down reciprocally, causing the patient to move up and down with the hoisting mechanism. The base mechanism, frame, and hoisting mechanism form a first cavity. In this invention, by setting the base mechanism, frame, and hoisting mechanism to form a U-shaped structure, when transporting patients, pushing the frame causes the base mechanism to directly insert into the bottom of the bed, and the hoisting mechanism to move directly above the bed. The caregiver only needs to push the frame to achieve quick and convenient positioning, saving the caregiver's physical energy. The hoisting mechanism is used to lift the patient into the first cavity, and the caregiver pulls the frame to transfer the patient from the bed.
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Description

Technical Field

[0001] This utility model relates to medical devices, and in particular to a medical transport device for moving patients. Background Technology

[0002] During patient care, some patients have difficulty getting up due to limb disabilities and are unable to get out of bed on their own, requiring assistance from nursing staff. Due to the patient's weight, moving the patient off the bed without tools requires a lot of physical energy, affecting the nursing staff's subsequent care work and causing inconvenience to their work.

[0003] Chinese invention patent (application number 201510516085.3, publication number: CN105147482B) discloses a lifting and transport device for paralyzed patients, belonging to the field of medical nursing equipment. This invention provides a lifting and transport device for paralyzed patients, comprising a frame, crossbeam, support, lateral movement mechanism, longitudinal telescopic mechanism, and vertical lifting mechanism. It utilizes a gear and rack mechanism and load-bearing guide rails to achieve smooth movement of the transport device along the length of the bed. Heavy-duty slide rails support the patient's weight and facilitate patient transfer from inside to outside the bed. An electric winch is used to lift and lower the patient, improving the structural stability and operational reliability of the transport device. It is simple and convenient to operate, eliminating the need for caregivers to lift the patient, resulting in higher patient comfort and significantly reducing the workload of caregivers. However, in practical use, it still has the following shortcomings: its frame occupies a large space and is inconvenient to use. Utility Model Content

[0004] This utility model provides a medical transport device for moving patients, the main purpose of which is to overcome the shortcomings of existing patient lifting and transport devices, which occupy a large area and are inconvenient to use.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] This disclosure provides a medical transport device for moving patients, including a movable base mechanism (1), a body frame (2) extending upward from the base mechanism (1), a hoisting mechanism (3) for hoisting patients on the body frame (2), and a power mechanism (4) on the body frame (2).

[0007] The power mechanism (4) drives the hoisting mechanism (3) to move up and down reciprocally.

[0008] The hoisting mechanism (3) includes an arc-shaped boom (31) mounted on the fuselage frame (2), a first mounting part (32) on the boom (31) for mounting a hook assembly (6), a hook assembly (6) hinged to one end of the boom (31), and a detachable accommodating unit mounted on the hook assembly (6) for a patient to sit on. The base mechanism (1), the fuselage frame (2), and the arc-shaped hoisting mechanism (3) together form a C-shaped structure.

[0009] The hook assembly (6) includes a main crossbeam (61), a first hinge part (62) located in the middle of the main crossbeam (61), two mounting blocks (63) located at both ends of the main crossbeam (61), a barrier between the first mounting part (32) and the first hinge part (62), and a hook (7) mounted on the mounting blocks (63). The first hinge part (62) is hinged to the first mounting part (32) via a connector (64). The two mounting blocks (63) and the main crossbeam (61) are assembled to form an I-shaped shape.

[0010] One end of the power mechanism (4) is retractably connected to the hoisting mechanism (3) to drive the hook assembly (6) to move up and down reciprocally. The other end of the power mechanism (4) is set on the fuselage frame (2). The fuselage frame (2) and the hook assembly (6) are pivotally connected. The power mechanism (4), the hoisting mechanism (3) and the fuselage frame (2) form a triangular structure. The boom (31) is pivotally connected to the fuselage frame (2). Its connection part is the third pivot part 12. The third pivot part 12 becomes the endpoint of one end of the triangular structure. The included angle between the boom (31) and the fuselage frame (2) is driven by the power mechanism (4) to realize the swing of the boom (31). As the boom (31) swings, the included angle between the fuselage frame (2) and the boom (31) changes.

[0011] In one possible implementation, the hook (7) includes a hook body (71) with an upward-facing U-shape, an extension block (72) extending from one end of the hook body (71) to above the opening 74, and a swingable sealing ring (73) on one end of the extension block (72). The other end of the hook body (71) is mounted on the mounting block (63), and the lower end of the sealing ring (73) is movable and abuts against the hook body (71).

[0012] In one possible implementation, the first mounting portion (32) is a groove shape, with the recessed portion (19) of the groove facing the first hinge portion (62).

[0013] In one possible implementation, the first hinge (62) is embedded in the groove, and a screw passes through the first mounting part (32) and the first hinge (62) in a transverse manner to cooperate with a nut, and swings with the screw as the axis. The barrier is in the shape of a groove and covers the outer periphery of the top of the first hinge (62). The barrier extends along the swing direction of the first hinge (62).

[0014] In one possible implementation, the base mechanism (1) includes a base (111) for mounting the fuselage frame (2), a first extension arm (16) on one side of the base (111), a second extension arm (17) on the other side of the base (111), and a linkage assembly on the base (111) for driving the first extension arm (16) and the second extension arm (17) to swing open. The base (111), the first extension arm (16) and the second extension arm (17) surround to form a recessed space (18). The first extension arm (16) and the second extension arm (17) can both be swayed and hinged to the base (111).

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] This utility model has a simple structure and strong practicality. It is formed by setting up a base mechanism, a body frame and a hoisting mechanism to form a U-shaped structure. When transferring patients, the body frame is pushed so that the base mechanism can be directly inserted into the bottom of the bed and the hoisting mechanism can be directly moved above the bed. The caregiver can achieve quick positioning by simply pushing the body frame, which is convenient and saves the caregiver's physical strength. A first cavity is set up and the hoisting mechanism is used to lift the patient in the first cavity. The caregiver pulls the body frame to transfer the patient from the bed. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 This is a three-dimensional structural diagram of the present invention.

[0019] Figure 3 for Figure 2 A bottom view.

[0020] Figure 4 for Figure 3 A schematic diagram of the structure of part A.

[0021] Figure 5 This is a schematic diagram of the structure for installing the boss.

[0022] Figure 6 This is a structural schematic diagram of the hook assembly.

[0023] Figure 7This is a schematic diagram of the accommodating unit.

[0024] Figure 8 A status diagram of the usage process. Figure 1 .

[0025] Figure 9 A status diagram of the usage process. Figure 2 .

[0026] Figure 10 A status diagram of the usage process. Figure 3 .

[0027] Figure 11 A status diagram of the usage process. Figure 4 .

[0028] Figure 12 A status diagram of the usage process. Figure 5 .

[0029] In the diagram: 1. Base mechanism; 2. Body frame; 3. Lifting mechanism; 4. Power mechanism; 5. Caster assembly; 6. Hook assembly; 7. Hook; 8. Mounting protrusion; 11. Push handle; 12. Third pivot; 13. Battery; 14. Second mounting part; 15. Second hinge; 16. First extension arm; 17. Second extension arm; 18. Groove space; 19. Assembly groove; 20. First assembly hole; 21. Protrusion; 31. Lifting arm; 32. First mounting part; 33. First cavity; 51. Top plate 62; 52, brake pad; 53, outer shell; 54, wheel axle; 55, wheel; 61, main crossbeam; first hinge part 62; mounting block 63; connector 64; hook body 71; opening 74; extension block 72; sealing ring 73; seating part 80; main body part 81; first extension part 82; sling 83; first slot 84; second slot 85; base 111; connecting rod connector 91; first connecting rod 92; second connecting rod 94; third connecting rod 93; connecting rod 114; second mounting hole 113. Detailed Implementation

[0030] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0032] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar words used in this patent application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Words such as "comprising" or "having" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "inner," "outer," "upper," and "lower" are used only to indicate relative positional relationships; these relative positional relationships may change accordingly when the absolute position of the described object changes. "A plurality of" means at least two.

[0033] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 A medical transport device for moving patients includes a movable base mechanism 1, a body frame 2 extending upward from the base mechanism 1, a hoisting mechanism 3 on the body frame 2 for hoisting patients, a power mechanism 4 on the body frame 2, a caster assembly 5 on the base mechanism 1, and a pusher 11 on the body frame 2. The caster assembly 5 can rotate 360 ​​degrees. The power mechanism 4 drives the hoisting mechanism 3 to move up and down reciprocally, so that the patient moves up and down reciprocally with the hoisting mechanism 3. The pusher 11 can be ring-shaped or elliptical and is set on the body frame 2.

[0034] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 The base mechanism 1, the fuselage frame 2, and the hoisting mechanism 3 surround each other to form a first cavity 33, and the base mechanism 1, the fuselage frame 2, and the hoisting mechanism 3 surround each other to form a U-shaped structure.

[0035] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7The caster assembly 5 includes a wheel 55, a ball bearing disposed inside the wheel 55, an axle 54 passing through the ball bearing, a housing 53 covering the left and right ends of the axle 54, a top plate 51 disposed on the top of the housing 53, and a brake pad 52 pivotally connected to the housing 53 at one end, the other end of the brake pad 52 being movably abutting against the outer periphery of the wheel 55.

[0036] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 The hoisting mechanism 3 includes an arc-shaped boom 31 mounted on the fuselage frame 2, a first mounting part 32 mounted on the boom 31 for mounting a hook assembly 6, a hook assembly 6 hinged to one end of the boom 31, and a detachable accommodating unit mounted on the hook assembly 6 for a patient to sit on. The base mechanism 1, the fuselage frame 2, and the arc-shaped hoisting mechanism 3 together form a C-shaped structure.

[0037] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 The hook assembly 6 includes a main crossbeam 61, a first hinge portion 62 located in the middle of the main crossbeam 61, two mounting blocks 63 located at both ends of the main crossbeam 61, a barrier between the first mounting portion 32 and the first hinge portion 62, and a hook 7 mounted on the mounting blocks 63. The first hinge portion 62 is hinged to the first mounting portion 32 via a connector 64, which can be a screw and a nut. The two mounting blocks 63 and the main crossbeam 61 are assembled to form an I-shaped profile.

[0038] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 In this embodiment, the first mounting part 32 is a groove shape, with the recessed part of the groove facing the first hinge part 62. The first hinge part 62 is embedded in the groove. A screw passes through the first mounting part 32 and the first hinge part 62 in a transverse manner, and a nut is used to swing around the screw as an axis. The barrier is a groove shape covering the outer periphery of the top of the first hinge part 62. The barrier extends along the swing direction of the first hinge part 62. The hook 7 is preferably three spaced on the mounting block 63. The two mounting blocks 63 are both rectangular plates and are arranged parallel to each other at both ends of the main crossbeam 61.

[0039] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 The hook 7 includes a hook body 71 with an upward-facing U-shaped opening, an extension block 72 extending from one end of the hook body 71 to above the opening 74, and a swingable sealing ring 73 on one end of the extension block 72. The other end of the hook body 71 is mounted on the mounting block 63, and the lower end of the sealing ring 73 is movable and abuts against the hook body 71.

[0040] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 The accommodating unit includes multiple slings 83 with one end detachably suspended from the hook assembly 6 and a seating part 80 connected to the other end of the slings 83. The seating part 80 wraps around the patient's thighs, buttocks and lower back.

[0041] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 In this embodiment, one end of the sling 83 is suspended on the hook 7, and the seating part 80 can be made of fiber material or other lightweight material that can be deformed by gravity compression.

[0042] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 The seating section 80 includes a rectangular main body 81 that can wrap around the patient's thighs, buttocks, and back; a rectangular first slot 84 on the main body 81; and two first extensions 82 extending outward from the bottom of the main body 81. The first extensions 82 can be adapted to wrap around the outer side of the patient's thighs, and the first slot 84 is adapted to be located on the patient's back so that the main body 81 folds and wraps around the patient's back. In addition, to facilitate the patient's toileting, a second slot 85 is provided on the main body 81 at a position corresponding to the patient's anus.

[0043] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4, Figure 5 , Figure 6 and Figure 7 By setting the first slot 84, the part of the main body 81 located at the back of the human body can be deformed better, making it more comfortable for the patient to sit.

[0044] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 When the sitting part 80 is lifted by the lifting strap 83 moving up and down through the hook assembly 6, the sitting part 80 is squeezed downward by the patient's own weight, causing the sitting part 80 to deform and wrap around the patient's thighs, buttocks and lower back, so that the patient can sit on the sitting part 80.

[0045] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 One end of the power mechanism 4 is retractably connected to the hoisting mechanism 3 and drives the hook assembly 6 to move up and down reciprocally. The other end of the power mechanism 4 is set on the frame 2. The frame 2 and the hook assembly 6 are pivotally connected. The power mechanism 4, the hoisting mechanism 3 and the frame 2 form a triangular structure. The boom 31 is pivotally connected to the frame 2. The connection part is the third pivot part 12, which becomes the endpoint of one end of the triangular structure. The included angle between the boom 31 and the frame 2 is driven by the power mechanism 4 to make the boom 31 swing. As the boom 31 swings, the included angle between the frame 2 and the boom 31 changes.

[0046] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 The power mechanism 4 is an electric cylinder, hydraulic cylinder, hydraulic oil cylinder, or other reciprocating telescopic power device that drives the hook assembly 6 to move up and down. The electric cylinder is powered by a removable rechargeable battery 13 mounted on the frame.

[0047] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7In this embodiment, one end of the power mechanism 4 is retractable and hinged to the hoisting mechanism 3 to drive the hook assembly 6 to move up and down reciprocally. Specifically, a second mounting part 14 is provided on the middle part of the boom 31. The second mounting part 14 has a groove shape, and the recessed part of the groove faces the power mechanism 4. A second hinge part 15 is provided on one end of the power mechanism 4. The second hinge is embedded in the second mounting part 14. A screw passes through the second mounting part 14 and the second hinge part 15 in a transverse manner and is matched with a nut. The second hinge part 15 swings with the screw as the axis. When the power mechanism 4 retracts and pushes the boom 31 to swing, the second hinge part 15 swings accordingly.

[0048] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 The base mechanism 1 includes a base 111 for mounting the fuselage frame 2, a first extension arm 16 disposed on one side of the base 111, a second extension arm 17 disposed on the other side of the base 111, and a linkage assembly disposed on the base 111 for driving the first extension arm 16 and the second extension arm 17 to swing open.

[0049] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 The base 111, the first extension arm 16 and the second extension arm 17 surround to form a recessed space 18. The first extension arm 16 and the second extension arm 17 can both be swayed and hinged to the base 111.

[0050] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 The base 111 is long and narrow. Two mounting grooves 19 are provided at both ends of the base 111 for clamping the first extension arm 16 and the second extension arm 17. The base 111 is bolted to serve as the pivot for hinged connection of the first extension arm 16 and the second extension arm 17.

[0051] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7The linkage assembly includes a linkage connector 91 pivotally mounted on the bottom of the base 111, a first link 92 mounted on the upper end of the linkage connector 91 (the upper end being the upper end of the linkage connector 91 when both the first extension 82 and the second extension arm 17 are open), a second link 94 mounted on one end of the linkage connector 91, and a third link 93 mounted on the other end of the linkage connector 91. The other end of the second link 94 is connected to the end of the first extension arm 16 (the end being the end of the first extension 82 near the mounting groove 41, connected by a bolt and nut) (when the second link 94 moves, it pulls the end of the first extension arm 16 to move along the direction of movement of the second link 94). The other end of the third link 93 is connected to the end of the second extension arm 17 (the end being the end of the second first extension 82 near the mounting groove 41, connected by a bolt and nut) (when the third link 93 moves, it pulls the end of the second extension arm 17 to move along the direction of movement of the third link).

[0052] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 The other end of the first link 92 is set on the frame 2 of the machine body and can be driven to move up and down by a power unit. Alternatively, the first link 92 can be manually driven to move up and down by the caregiver pulling the upper part of the first link 92. The movement path of the first link 92 is not on the same vertical line as the rotation axis of the link connector 91. The caster assembly 5 is preferably four, one at each end of the first extension arm 16 and one at each end of the second extension arm 17.

[0053] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7The fuselage frame 2 includes a long, narrow frame body 112 mounted on a base 111, a cavity at the bottom of the frame body 112, a second mounting hole 113 on the side wall of the cavity (located on the lower part of the frame body 112) that matches the first mounting hole 20, and a crossbar in the cavity that matches the recess. The base 111 has a mounting protrusion 8, which includes an upwardly extending protrusion 21, a recess on the top of the protrusion 21, and the first mounting hole 20 on the side of the protrusion 21. Embedding the mounting protrusion 8 into the cavity allows the fuselage frame 2 to be detachably mounted on the base 111. The crossbar is embedded in the recess, improving installation stability. The fuselage frame 2 and the mounting protrusion 8 are fixedly connected by a connecting rod 114 passing through the first mounting hole 20 and the second mounting hole 113 respectively.

[0054] The process of using this device:

[0055] This procedure demonstrates how two caregivers move a patient from bed 204.

[0056] refer to Figure 8 A caregiver 202 lays the main body 81 of the seating section 80 under the patient 205's body, covering the area from the shoulders to the thighs.

[0057] refer to Figure 8 Another nurse 201 pushes the frame 2 to the side of the bed 204 with pusher 11, and the first extension arm 16 and the second extension arm 17 extend under the bed 204.

[0058] refer to Figure 9 and Figure 10 One caregiver 202 opens the sealing ring 73 and hangs the sling 83 on the hook 7. Another caregiver 201 starts the power mechanism 4 to extend and push the boom 31 to swing upward, so that the hook 7 moves upward and lifts the patient. One caregiver 202 holds the patient's calves, and the sitting part 80 wraps around the patient's thighs, buttocks and lower back, so that the patient sits on the sitting part 80.

[0059] refer to Figure 11 and Figure 12 One nurse 202 pulls the pusher 11 to pull the frame 2 away from the bed 204. Another nurse 201 pushes the wheelchair into the recessed space 18. Another nurse 201 operates the power mechanism 4 to retract and drive the boom 31 to swing downward, so that the hook 7 moves downward and puts the patient on the wheelchair, completing the patient's movement.

[0060] The above are merely specific embodiments of this utility model, but the design concept of this utility model is not limited thereto. Any non-substantial modifications made to this utility model using this concept shall be considered as an infringement of the protection scope of this utility model.

Claims

1. A medical transport device for moving patients, characterized in that: It includes a movable base mechanism (1), a body frame (2) extending upward from the base mechanism (1), a hoisting mechanism (3) on the body frame (2) for hoisting the patient, and a power mechanism (4) on the body frame (2). The power mechanism (4) drives the hoisting mechanism (3) to move up and down reciprocally. The hoisting mechanism (3) includes an arc-shaped boom (31) mounted on the fuselage frame (2), a first mounting part (32) mounted on the boom (31) for mounting a hook assembly (6), a hook assembly (6) hinged to one end of the boom (31), and a detachable accommodating unit mounted on the hook assembly (6) for a patient to sit on. The base mechanism (1), the fuselage frame (2), and the arc-shaped hoisting mechanism (3) together form a C-shaped structure. The hook assembly (6) includes a main crossbeam (61), a first hinge part (62) located in the middle of the main crossbeam (61), two mounting blocks (63) located at both ends of the main crossbeam (61), a barrier between the first mounting part (32) and the first hinge part (62), and a hook (7) mounted on the mounting blocks (63). The first hinge part (62) is hinged to the first mounting part (32) via a connector (64). The two mounting blocks (63) and the main crossbeam (61) are assembled to form an I-shaped shape. One end of the power mechanism (4) is retractably connected to the hoisting mechanism (3) to drive the hook assembly (6) to move up and down reciprocally. The other end of the power mechanism (4) is set on the fuselage frame (2). The fuselage frame (2) and the hook assembly (6) are pivotally connected. The power mechanism (4), the hoisting mechanism (3) and the fuselage frame (2) form a triangular structure. The boom (31) is pivotally connected to the fuselage frame (2). Its connection part is the third pivot part (12). The third pivot part (12) becomes the endpoint of one end of the triangular structure. The included angle between the boom (31) and the fuselage frame (2) is driven by the power mechanism (4) to realize the swing of the boom (31). As the boom (31) swings, the included angle between the fuselage frame (2) and the boom (31) changes.

2. The medical transport device for moving patients as described in claim 1, characterized in that: The hook (7) includes a hook body (71) with an upward-facing U-shaped opening, an extension block (72) extending from one end of the hook body (71) to the opening (74), and a swingable sealing ring (73) on one end of the extension block (72). The other end of the hook body (71) is mounted on the mounting block (63), and the lower end of the sealing ring (73) is movable and abuts against the hook body (71).

3. The medical transport device for moving patients as described in claim 2, characterized in that: The first mounting part (32) has a groove shape, and the recessed part (19) of the groove faces the first hinge part (62).

4. The medical transport device for moving patients as described in claim 3, characterized in that: The first hinge (62) is embedded in the groove. A screw passes through the first mounting part (32) and the first hinge (62) in a transverse manner and is matched with a nut. The screw is used as the axis for swinging. The barrier is in the shape of a groove and covers the outer periphery of the top of the first hinge (62). The barrier extends along the swing direction of the first hinge (62).

5. A medical transport device for moving patients as described in claim 4, characterized in that: The base mechanism (1) includes a base (111) for mounting the fuselage frame (2), a first extension arm (16) on one side of the base (111), a second extension arm (17) on the other side of the base (111), and a linkage assembly on the base (111) for driving the first extension arm (16) and the second extension arm (17) to swing open. The base (111), the first extension arm (16) and the second extension arm (17) surround to form a recessed space (18). The first extension arm (16) and the second extension arm (17) can both be swayed and hinged to the base (111).