A manual back-mounted transfer machine
By utilizing the lever principle and gas spring cushioning, the manual back transfer machine enables simple and effortless patient transfer, solving the problems of space limitations and high labor intensity for nursing staff in existing transfer machines, and improving the comfort and space utilization of the transfer machine.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-05-09
- Publication Date
- 2026-03-17
AI Technical Summary
Existing patient transfer machines can only accommodate short-distance patient transfers, have high site requirements, limited space, and require high labor intensity and poor comfort for nursing staff.
Design a manual back-mounted transfer machine that uses the lever principle to achieve lifting and lowering functions by moving the handrail, simulating the human body carrying action. The patient lies on the transfer machine and completes the machine action by shifting the center of gravity. Combined with a gas spring buffer mechanism and adjustable chest and leg support mechanisms, it can adapt to different body types and reduce the labor intensity of nursing staff.
It enables simple and effortless patient transfer, reduces the labor intensity of nursing staff, enhances the space utilization and comfort of the transfer machine, avoids ligature marks and head injuries during the nursing process, and has a simple structure and low cost.
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Figure CN114732629B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of medical device technology, and in particular to a manual back-mounted transfer machine. Background Technology
[0002] The statements in this section are merely background information related to the present invention and do not necessarily constitute prior art.
[0003] For patients with disabilities or lower limb paralysis, caregivers are needed to assist them with daily activities such as bathing, toileting, getting out of bed, and moving around. These activities are a heavy burden for caregivers. The transfer machine is a short-distance assistive transfer device that is widely applicable to elderly people with paralysis, disability, or partial disability who have difficulty moving around. It has become an indispensable part of the assistive device industry for disabled people.
[0004] Existing seated patient transfer machines have limited functionality, only meeting the needs of short-distance patient relocation. For disabled individuals with limited mobility or lower limb limitations, the process of moving them to the machine is physically demanding for caregivers. While ceiling-mounted electric patient transfer machines offer poor comfort, are expensive, and require specific space for relocation, they rely on straps to suspend the patient and use rails for transfer. During this process, the straps exert pressure on the patient's inner thighs, causing marks from gravity and limiting their suitability for short-distance transfers. Furthermore, ceiling-mounted electric patient transfer machines are unsuitable for confined spaces, requiring numerous rails within the transfer area, thus being limited by spatial constraints. Summary of the Invention
[0005] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a manual back transfer machine, which solves the technical problems of existing transfer machines that can only meet the needs of short-distance patient transfer, have high requirements for the transfer site, and are severely affected by spatial location.
[0006] To achieve the above objectives, the present invention is implemented through the following technical solution:
[0007] A manual back-mounted transfer machine, comprising:
[0008] The base has a movable mechanism installed at its bottom;
[0009] Support, mounted on the base, with leg mechanisms fixed on both sides;
[0010] The support mechanism is installed on one side of the support and is set at a predetermined angle to the support, and has an internal buffer mechanism.
[0011] The lever mechanism has a first section that is rotatably connected to the top of the support mechanism via a first linkage mechanism. One end of the first section supports the chest support mechanism, and the chest support mechanism is equipped with a forked support mechanism that supports the patient's armpits on both sides. One end of the second section is rotatably connected to the first section, and the other end is bent and has a movable handle. The head protection mechanism is fixed on one side of the movable handle.
[0012] As described above, the transfer machine uses the lever principle to lift and lower the patient by having the caregiver press down on the moving handrail. The patient lies prone on the transfer machine, simulating the human body carrying and transferring. The direction of force is changed by the linkage, allowing the patient to complete the transfer by shifting their center of gravity. It is simple and effortless, eliminating the need for the caregiver's assistance. During the prone transfer, it is also convenient for the patient to perform daily activities such as using the toilet and bathing.
[0013] As described above, in a manual back-mounted transfer machine, support plates are installed on both sides of the support, ear plates are provided on the support plates, one end of the fixing rod passes through the ear plate and is connected to the transverse support rod, both ends of the transverse support rod are slidably connected to the blocking rod, and one end of the blocking rod supports the leg rest mechanism through the leg guard support rod.
[0014] As described above, in a manual back-mounted transfer machine, the support is U-shaped, the support mechanism is located on one side of the opening of the support, and the bottom end of the support mechanism is rotatably connected to the base and can rotate to the inside of the support.
[0015] As described above, in a manual back-mounted transfer machine, a slider is provided on the side of the support mechanism away from the support base. The slider moves along the support mechanism, and the buffer mechanism is a gas spring, with the top of the gas spring supporting the slider.
[0016] As described above, in a manual back-mounted transfer machine, a chest support seat is provided on the inner side of the first section of the lever mechanism. The chest support seat supports the chest support mechanism through a support rod and is located above the slider.
[0017] As described above, in a manual back-mounted transfer machine, a limiting block is provided around the end of the first segment of the lever mechanism. The limiting block protrudes by a certain length at the bottom of the first segment of the lever mechanism to support the second segment of the lever mechanism. The top part is rotatably connected to a connecting plate. A locking block is provided at the bottom of the connecting plate, and the locking block engages with a groove on the end of the second segment of the lever mechanism.
[0018] As described above, a manual back-mounted transfer machine has a safety handle support rod provided near the second end of the lever mechanism, and a safety handle is installed on the safety handle support rod.
[0019] As described above, in a manual back-mounted transfer machine, the lever mechanism has a symmetrical structure, the moving handle extends a set length to both sides of the lever mechanism, the head protection mechanism is slidably connected to the sleeve through the head protection support rod, the sleeve is located inside the lever mechanism, and its bottom is supported by the sleeve support rod.
[0020] As described above, in a manual back-mounted transfer machine, the sleeve support rod is arranged perpendicularly to the sleeve, a fixing block is installed inside the lever mechanism, the sleeve support rod passes through the fixing block and slides with the fixing block, and a fixing member is provided on one side of the fixing block to limit the relative position of the fixing block and the sleeve support rod.
[0021] As described above, in a manual back-mounted transfer machine, the moving mechanism includes a medical control wheel and a swivel wheel. The swivel wheel is mounted on the base end of the support mechanism on the other side of the support, and the medical control wheel is mounted on the other end of the base.
[0022] The beneficial effects of the present invention are as follows:
[0023] 1. This invention utilizes the lever principle to achieve the lifting and lowering function of the patient transfer machine by having the caregiver press down on the movable handrail. The patient lies prone on the machine, simulating the human body's back-carrying transfer action. A linkage changes the direction of force, allowing the patient to complete the transfer by shifting their center of gravity. This is simple, effortless, and eliminates the need for caregiver assistance. It also facilitates daily activities such as using the toilet and bathing during the prone transfer process. The movable handrail is foldable, increasing space utilization. The positions of the chest support and leg support mechanisms are adjustable to accommodate users of different body types.
[0024] 2. The transfer machine of the present invention is manually controlled, has low manufacturing cost, simple structure, and is small and flexible. At the same time, the lever mechanism is easy to fold and store, saving space, and the head protection mechanism can be adjusted back and forth to avoid injury to the head of the person being cared for during transfer.
[0025] 3. The invention has a gas spring installed below the chest support mechanism to prevent sudden fall under gravity, ensuring safety during the lifting and lowering process. The overall function of the transfer machine is rich, the space occupied is small, and the comfort of the person being cared for can be guaranteed. Attached Figure Description
[0026] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.
[0027] Figure 1 This is an isometric schematic diagram of the working state of a manual back-mounted shifter according to the present invention.
[0028] Figure 2 This is a front view of a manual back-mounted transfer machine according to the present invention.
[0029] Figure 3 This is a side view of a manual back-mounted transfer machine according to the present invention.
[0030] Figure 4This is a first-view isometric schematic diagram of a manual back-mounted shifter according to the present invention.
[0031] Figure 5 yes Figure 4 Detailed structural diagram of part A.
[0032] Figure 6 yes Figure 4 Detailed structural diagram of Part B.
[0033] Figure 7 This is a second-view isometric schematic diagram of a manual back-mounted shifter according to the present invention.
[0034] Figure 8 yes Figure 7 Detailed structural diagram of section C.
[0035] Figure 9 yes Figure 7 Detailed structural diagram of section D.
[0036] The diagram exaggerates the spacing or dimensions between parts to show their positions; the diagram is for illustrative purposes only.
[0037] The components are as follows: 1. Base, 2. Moving handle, 2-1. Moving handle support rod, 3. Safety handle, 3-1. Safety handle support rod, 3-2. Limiting component, 4. Head protection mechanism, 4-1. Sleeve, 4-2. Head protection support rod, 4-3. Fixing block, 4-4. Sleeve support rod, 4-5. Fixing component, 5. Chest support mechanism, 5-1. Chest support support seat, 6. Fork lifting support mechanism, 7. Support mechanism, 7-1. Slider, 7-2. Limiting hole, 8. Support, 9. Leg support mechanism, 9-1. Support plate, 9-2. Ear plate, 9-3. Fixing rod, 9-4. Leg protection support rod, 9-5. Blocking rod, 9-6. Horizontal support rod, 10. Universal wheel, 11. Medical central control wheel, 12. Locking mechanism, 12-1. Locking plate, 12-2. Connecting plate, 13. Lever mechanism. Detailed Implementation
[0038] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the invention. Unless otherwise specified, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.
[0039] As described in the background section, existing transfer machines can only meet the problem of short-distance patient transfer, have high requirements for the transfer site, and are severely affected by spatial location. In order to solve the above technical problems, this invention proposes a manual back transfer machine.
[0040] Example 1
[0041] In a typical embodiment of the present invention, reference is made to Figures 1-9 As shown, a manual back-carrying transfer machine includes a base 1 and a support 8. The support 8 is mounted on the base 1, and leg rest mechanisms 9 are fixed on both sides of the support. The support is inclined on the base. A support mechanism 7 is mounted on one side of the support 8 and is set at a set angle with the support when not in use. The support 7 has a buffer mechanism inside. The support is U-shaped, and the support mechanism is located on the opening side of the support. The bottom end of the support mechanism 7 is rotatably connected to the base 1 and can rotate to the inside of the support. When it is necessary to carry the patient, the support mechanism rotates to the inside of the support opening, and the support 8 supports and limits the support mechanism 7 to ensure the stability of the transfer machine during movement.
[0042] like Figure 4 and Figure 6 As shown, support plates 9-1 are installed on both sides of the support 8. The support plates are positioned near the top of the support and are perpendicular to the outer edge of the support, extending towards both sides of the support. At least two ear plates 9-2 are vertically installed on the support plates, preferably two, arranged side by side. Corresponding through holes are provided on the ear plates. One end of the fixing rod 9-3 passes through the ear plate and is connected to the transverse support rod 9-6. The other end is fixed by a nut to prevent the fixing rod 9-3 from detaching. In some examples, the fixing rod can be a screw rod. Adjusting the position of the nut can realize the extension and retraction of the fixing rod 9-3 on the ear plate. The transverse support rod is parallel to the top surface of the support plate and extends towards both sides of the support. Both ends of the transverse support rod 9-6 are slidably connected to the blocking rod 9-5. Specifically, the connection part of the blocking rod and the transverse support rod has through holes. The two are nested and their relative positions are adjusted by different through holes and pins. The blocking rod is bent. The other end of the blocking rod 9-5 supports the leg support mechanism through the leg guard support rod 9-4.
[0043] The leg support mechanism 9 is tilted relative to the base 1 so that when the patient is carried by the transfer machine, the patient's knees and the part below the knees can rest on the leg support mechanism 9 for support. The leg support mechanism 9 is U-shaped, which effectively protects the patient's legs. The U-shaped structure can also prevent the patient's legs from slipping off. The leg support mechanism 9 is equipped with a support pad to enhance the patient's comfort.
[0044] In this embodiment, the support mechanism 7 is a support base, and its internal buffer mechanism is a gas spring, which is intended to prevent the patient carried on the transfer machine from suddenly falling and to protect the patient's safety.
[0045] The lever mechanism 13 is a two-section lever mechanism with a symmetrical structure. It is set on both sides of the support mechanism 7 to achieve symmetrical arrangement. The first section is rotatably connected to the top of the support mechanism 7 through the first linkage mechanism. The end of the first section supports the chest support mechanism 5. The chest support mechanism 5 is installed on both sides to support the patient's armpit support mechanism 6. One end of the second section is rotatably connected to the first section, and the other end is bent and has a movable handle 2. The head protection mechanism 4 is fixed on one side of the movable handle.
[0046] The first linkage mechanism is existing technology, which can be achieved by rotating the first end of the lever mechanism to the top of the support structure. The purpose of the chest support mechanism 5 is to support the patient's chest, and its area is set according to the area of the patient's chest. The purpose of the fork support mechanism 6 is to support the patient's armpit, so that the armpit can bear the force. The fork support mechanism 6 is bent to prevent the patient from falling off. Support pads are set on both the chest support mechanism 5 and the fork support mechanism 6 to improve the patient's comfort.
[0047] like Figures 7-8 As shown, a limiting block is provided around the end of the first segment of the lever mechanism 13. The limiting block is fixed around the end of the first segment of the lever mechanism, and the bottom part of the limiting block at the end of the first segment of the lever mechanism protrudes by a certain length to support the second segment of the lever mechanism 13. This ensures that when the two ends of the lever mechanism 13 rotate relative to each other, only the second segment can rotate clockwise. When the two segments rotate counterclockwise to the point where they are joined, they cannot continue to rotate. This allows pressure to be applied through the moving handle 2 at the end of the second segment to carry the patient onto the transfer machine using the lever principle. The top part of the limiting block is rotatably connected to the connecting plate 12-2. The bottom of the connecting plate is fixed with the locking plate 12-1. The connecting plate fixes the locking block to the bottom of the locking plate with bolts. The locking block engages with the groove on the end of the second segment of the lever mechanism.
[0048] The above structure forms the locking mechanism 12. By moving the locking plate 12-1, the locking block is disengaged from the groove, which facilitates the clockwise rotation of the second section of the lever mechanism, thereby enabling the storage of the shifting machine when not in use and saving space occupied by the device.
[0049] Because the lever mechanism has a symmetrical structure, the movable handle 2 bends and extends towards both sides of the lever end. A safety handle support rod 3-1 is installed near the second end of the lever mechanism 13, and a safety handle 3 is mounted on the safety handle support rod 3-1. The safety handle support rod 3-1 is composed of multiple nested support rods, and through holes are provided around the joints. The multiple support rods are fixed by the limiting member 3-2, allowing for adjustment of the position of the safety handle 3. Figure 7 As shown, the safety handle 3 is located below the movable handle 2, making it easier for the patient to grasp the safety handle 3 and improving the patient's sense of security. Similarly, the safety handle 3 is also symmetrically arranged relative to the lever.
[0050] like Figure 4 and Figure 5As shown, the head protection mechanism 4 is located inside the lever and inside the moving handle support rod 2-1 in the middle of the moving handle 2. The head protection mechanism 4 is slidably connected to the sleeve 4-1 through the head protection support rod 4-2. The two are slidably engaged through a through hole, and their relative positions are adjustable by changing the position of the pin. The sleeve is located in the middle of the symmetrical lever mechanism, and its bottom is supported by the sleeve support rod 4-4. The sleeve support rod 4-4 is perpendicular to the sleeve 4-1. A fixing block 4-3 is installed inside the lever mechanism 13. The sleeve support rod passes through the fixing block and is slidably engaged with the fixing block. It passes through the through hole of the fixing block, and the sleeve support rod is evenly provided with adjustment holes. A fixing member 4-5 is provided on one side of the fixing block to limit the relative position of the fixing block and the sleeve support rod. The fixing member is inserted into the fixing block and engages with the sleeve support rod, thereby realizing the up, down, left, and right position adjustment of the head protection mechanism. The fixing member is an insert block.
[0051] like Figure 6 and Figure 7 As shown, a slider 7-1 is located on the side of the support mechanism away from the support base. The slider moves along the support mechanism, and the buffer mechanism is a gas spring, with the top of the gas spring supporting the slider 7-1. A chest-supporting seat 5-1 is located at the inner end of the first section of the lever mechanism. The chest-supporting seat supports the chest-supporting mechanism via a support rod. The position of the chest-supporting mechanism relative to the support rod is rotatable and adjustable, which can be achieved by setting the support rod as a telescopic rod. The chest-supporting seat is located above the slider. The purpose is to prevent the patient carried on the transfer machine from suddenly falling and to protect the patient's safety. The slider, through the action of the gas spring, supports and buffers the chest-supporting seat. The slider has a limiting hole 7-2, and a corresponding limiting hole can also be set on the chest-supporting seat. When the patient is transferred onto the machine, the slider and the chest-supporting seat can be fixed using a pin.
[0052] A moving mechanism is installed at the bottom of the base. The moving mechanism includes a medical central control wheel 11 and a universal wheel 10. The universal wheel 10 is installed at the end of the base on the other side of the support mechanism relative to the support, and two of them are provided. The medical central control wheel 11 is installed at the other end of the base, and two of them are provided. The distance from the support mechanism to the universal wheel is greater than the distance to the medical central control wheel, which makes it easier to move the transfer machine to the closest point to the bedside and facilitates lifting and supporting the patient.
[0053] Before starting the transfer, the person being cared for should be seated with their legs hanging naturally. The caregiver pushes the transfer machine in front of the person being cared for, inserts the casters into the bed or seat, and locks the medical control wheels. With the assistance of the caregiver or by the person being cared for themselves, they place their legs on the base and press them firmly against the leg rest mechanism. They lean forward, pressing their chest against the chest rest mechanism, and hold the safety handrails. They should have a clear field of vision to communicate face-to-face with the caregiver. At the same time, they should hold the fork support mechanism under their armpits. At this time, the person being cared for mainly bears the weight under their armpits. The caregiver adjusts the chest rest mechanism and leg rest mechanism to ensure a comfortable posture during the transfer.
[0054] The caregiver presses down on the moving handrail, slowly raising the person to a suitable height. The slider and chest support are locked, and the headrest mechanism is adjusted to prevent neck strain and ensure a comfortable head position for the relocation. The caregiver then unlocks the medical control wheels and slowly moves the person to the desired position. During relocation, the main support is provided to the person's chest, making the person's posture convenient for sitting on the toilet or bed. This completes one relocation procedure.
[0055] After the shifting machine is used, the second section of the lever mechanism can be folded away to save space occupied by the shifting machine.
[0056] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.
Claims
1. A hand-carried, backpack-style mobility device, characterized by, The utility model relates to a medical treatment device for patients with chest and leg diseases, which comprises the following parts: a base, the bottom of which is provided with a moving mechanism; a support, which is installed on the base and has two sides fixed with leg leaning mechanisms; a supporting mechanism, which is installed on one side of the support and is arranged at a set angle with the support, and is internally provided with a buffer mechanism; a lever mechanism, the first section of which is rotatably connected to the top of the supporting mechanism through a first connecting rod mechanism, one end of the first section supports a chest leaning mechanism, and the two sides of the chest leaning mechanism are provided with fork lifting support mechanisms for supporting the underarms of a patient, the second section of the lever mechanism is rotatably connected to one end of the first section, the other end of the second section is bent and provided with a moving handle at the end, and one side of the moving handle is fixed with a head protection mechanism; the end of the first section of the lever mechanism is provided with a limiting block, the limiting block is protruded from the bottom end of the first section of the lever mechanism by a set length to support the second section of the lever mechanism, and the top end is rotatably connected to a connecting plate, the bottom of the connecting plate is provided with a locking block which is matched with a groove on the end of the second section of the lever mechanism; the lever mechanism is of a symmetrical structure, the moving handle extends towards the two sides of the lever mechanism by a set length, the head protection mechanism is slidably connected to a sleeve through a head protection support rod, the sleeve is arranged in the lever mechanism and is supported by a sleeve support rod at the bottom, the sleeve support rod is arranged perpendicularly to the sleeve, a fixing block is installed in the lever mechanism, the sleeve support rod passes through the fixing block and is slidably matched with the fixing block, and a fixing member is arranged on one side of the fixing block to limit the relative position of the fixing block and the sleeve support rod.
2. A manually operated back-mounted displacement machine according to claim 1, characterized in that support plates are arranged on the two sides of the support, ear plates are arranged on the support plates, a fixed rod passes through the ear plates and is connected to transverse support rods at one end, the transverse support rods are slidably connected to plug rods at the two ends, and the plug rods support the leg leaning mechanisms through leg protection support rods at one end.
3. A manually operated back mounted shifter as in claim 1, wherein, the support is of a U shape, the supporting mechanism is arranged on the side of the opening of the support, and the bottom end of the supporting mechanism is rotatably connected to the support and can be rotated to the inner side of the support.
4. A manually operated backshift machine according to claim 3, wherein a sliding block is arranged on the side of the supporting mechanism away from the support, the sliding block moves along the supporting mechanism, and the buffer mechanism is a gas spring, the top of which supports the sliding block.
5. A manually operated back-mounted displacement machine according to claim 4, characterized in that a chest leaning support seat is arranged on the inner side of the first section of the lever mechanism, the chest leaning support seat supports the chest leaning mechanism through a support rod, and the chest leaning support seat is arranged above the sliding block.
6. A manually operated back-mounted displacement machine according to claim 1, wherein a safety handle support rod is arranged close to the end of the second section of the lever mechanism, and a safety handle is installed on the safety handle support rod.
7. A manually operated back-mounted displacement machine according to claim 1, wherein the moving mechanism comprises medical treatment control wheels and universal wheels, the universal wheels are installed on the end of the base on the side of the supporting mechanism relative to the support, and the medical treatment control wheels are installed on the other end of the base.
Citation Information
Patent Citations
Manual back type shifting machine
CN217938587U