Transport chair

By designing the connecting frame, support plate, and floating wheel structure of the transfer chair, the problem of moving surgical patients from wheelchairs to the operating table was solved, realizing a safe and convenient transfer process and reducing the risk of falling off the bed.

CN115317253BActive Publication Date: 2026-05-19SHANTOU UNIV·CHINESE UNIV OF HONG KONG JOINT SHANTOU INT OPHTHALMOLOGY CENT
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHANTOU UNIV·CHINESE UNIV OF HONG KONG JOINT SHANTOU INT OPHTHALMOLOGY CENT
Filing Date
2022-08-11
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Surgical patients often have difficulty moving from wheelchairs to the operating table on their own due to mobility issues, poor vision, or obesity, which poses a risk of falls. Furthermore, improper assistance from family members can easily lead to falls from the operating table.

Method used

A transfer chair was designed, including a connecting frame, a support plate, and floating wheels. The support plate is composed of multiple short plates connected by hinges and equipped with floating wheels. The support plate can be laid flat horizontally and docked with the operating table. It can be fixed by pushing the structure and the baffle to achieve smooth transfer.

Benefits of technology

It reduces the difficulty of patient movement, lowers the risk of falling out of bed, and improves the safety and convenience of the operation.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN115317253B_ABST
    Figure CN115317253B_ABST
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Abstract

The present application provides a transport chair, comprising a connecting frame, moving wheels and a support plate; the support plate is composed of multiple short plates connected by hinges, each short plate has an embedded groove on the back, and is fixed to the connecting frame by a baffle; the support plate is also equipped with multiple floating wheels, which are placed in a spare box fixed to the connecting frame; the transport chair can be connected to a surgical bed, reducing the patient movement process and the difficulty of actual operation; and the situation of falling out of bed and knocking will not occur.
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Description

Technical Field

[0001] This invention relates primarily to the field of medical devices, and more particularly to a transfer chair. Background Technology

[0002] In most surgeries, patients are assisted by nursing staff to lie down on the operating table after being brought to the operating room. This is because most surgical patients have poor mobility, poor vision, leg and lumbar spine diseases, or are obese, making it difficult for them to get on and off the operating table and increasing the risk of falls. Additionally, many elderly patients have lost the ability to move independently due to illness or physical reasons, making it difficult for them to walk to the operating room; they are usually transported by wheelchair or bed.

[0003] The process of getting a patient from a wheelchair to a hospital bed involves three steps: getting off the wheelchair, moving to the side of the operating table, and lying down on the operating table. These steps are difficult for the aforementioned patients to complete independently, and improper assistance from family members can lead to a risk of falls. Furthermore, the difficulty increases significantly for obese or injured patients. Summary of the Invention

[0004] To address the aforementioned deficiencies in the prior art, the present invention provides a transfer chair, comprising a connecting frame 2, movable wheels, and a support plate 1; the support plate 1 is composed of multiple short plates 11 connected by hinges, each short plate 11 has an embedded groove 12 on its back and is fixed to the connecting frame 2 by a baffle 21, and the support plate 1 is also equipped with multiple floating wheels 3, which are placed in a spare box fixed to the connecting frame 2.

[0005] Preferably, the short plate 11 is divided into five parts: foot plate 111, leg plate 112, seat plate 113, backrest plate 114, and guide plate 115. A pair of insertion plates 110 are symmetrically fixedly connected to the back of the leg plate 112, seat plate 113, backrest plate 114, and guide plate 115. The hinges between the backrest plate 114 and guide plate 115, between the seat plate 113 and backrest plate 114, and between the foot plate 111 and leg plate 112 are all 90° limiting hinges. The embedding grooves 12 on the back of the leg plate 112, backrest plate 114, and guide plate 115 are fixedly connected to the connecting frame 2 after being inserted into the baffle 21 on the side of the connecting frame 2. A floating wheel 3 is installed in the embedding groove 12 on the back of the seat plate 113 and is supported by a sliding plate fixedly connected to the connecting frame 2 below the floating wheel 3.

[0006] Preferably, the connecting frame 2 is also equipped with a pushing structure 22, which includes a rotating rod, a gear and a pushing rod. One end of the rotating rod extends to the gap in the side wall of the connecting frame 2, and the other end is fixed to the inner wall of the gear by a key. The pushing rod has a toothed structure on the side near the gear and meshes with the teeth of the gear. The end away from the gear is equipped with a roller structure and supports the leg plate 112 at an angle.

[0007] Preferably, the baffle 21 includes an "L"-shaped connecting plate and a rubber pad. One end of the connecting plate is fixed to the connecting frame 2 by bolts, and the other end is embedded in the embedding groove 12. The rubber pad is located on the contact surface between the connecting plate and the embedding groove 12.

[0008] Preferably, a floating wheel avoidance groove is also provided on the side of the embedded groove 12 away from the short plate 11.

[0009] Preferably, the floating wheel 3 includes a fixed plate, a limiting pad, and a floating wheel structure. One side of the fixed plate is fixed to the floating wheel structure, and the other side is fixed to the limiting pad with glue. The size of the fixed plate corresponds to the inner wall size of the baffle 21.

[0010] Preferably, the height of the seat 113 is the same as the height of the operating table.

[0011] Preferably, a limiting filler plate can also be inserted between two adjacent parts of the short plate 11.

[0012] The beneficial effects of this invention are:

[0013] 1. It enables the transfer chair to connect with the operating table, reducing the patient's movement and lowering the difficulty of actual operation;

[0014] 2. There will be no risk of falling out of bed or getting injured. Attached Figure Description

[0015] Figure 1 This is a structural diagram of the present invention;

[0016] Figure 2 This is a side view of the present invention;

[0017] Figure 3 This is a diagram of the baffle structure of the present invention;

[0018] Figure 4 This is a cross-sectional view of the pushing structure of the present invention;

[0019] Figure 5 This is a diagram showing the first stage of docking of the transfer chair of the present invention;

[0020] Figure 6 This is a diagram showing the second stage of the docking of the transfer chair according to the present invention;

[0021] Figure 7 This is a diagram showing the third stage of the docking of the transfer chair according to the present invention;

[0022] Figure 8 This is a diagram showing the fourth stage of docking of the transfer chair according to the present invention;

[0023] Figure 9 This is a diagram showing the fifth stage of the docking of the transfer chair according to the present invention;

[0024] In the picture,

[0025] 1. Support plate; 2. Connecting frame; 3. Floating wheel; 11. Short plate; 12. Embedded groove; 21. Baffle; 22. Pushing structure; 111. Foot plate; 112. Leg plate; 113. Seat plate; 114. Backrest plate; 115. Guide plate. Detailed Implementation

[0026] To enable those skilled in the art to better understand the technical solutions of the present invention and to make the above-mentioned features, objectives, and advantages of the present invention clearer and easier to understand, the present invention will be further described below with reference to embodiments. These embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention.

[0027] like Figure 1-2 As shown, the present invention includes: a connecting frame 2, a movable wheel and a support plate 1; the support plate 1 is composed of multiple short plates 11 connected by hinges, each short plate 11 has an embedded groove 12 on its back and is fixed to the connecting frame 2 by a baffle 21, and the support plate 1 is also equipped with multiple floating wheels 3, which are placed in a spare box fixed to the connecting frame 2.

[0028] Normally, this device is shaped like a wheelchair and is used in the same way as a wheelchair.

[0029] During the process of connecting the patient with the operating table, the support plate 1 is horizontally flattened, and the floating wheel 3 is embedded into the embedding groove 12. By pushing, the patient, along with the support plate 1, enters the operating table.

[0030] like Figure 1 Among them, as a preferred solution for shortcoming 11:

[0031] The short board 11 is divided into five parts: footboard 111, legboard 112, seat board 113, backrest board 114, and guide board 115. A pair of insert plates 110 are symmetrically fixedly connected to the back of the legboard 112, seat board 113, backrest board 114, and guide board 115. The hinges between the backrest board 114 and guide board 115, between the seat board 113 and backrest board 114, and between the footboard 111 and legboard 112 are all 90° limiting hinges. The embedded grooves 12 on the back of the legboard 112, backrest board 114, and guide board 115 are fixedly connected to the connecting frame 2 after being inserted into the baffle 21 on the side of the connecting frame 2. A floating wheel 3 is installed in the embedded groove 12 on the back of the seat board 113 and is supported by a sliding plate fixedly connected to the connecting frame 2 below the floating wheel 3.

[0032] like Figure 5 As shown, when flattened, first release the backrest 114 and guide plate 115, and then support them with your hands to lower them slowly. Due to the 90° limiting hinge between the seat plate 113, backrest 114 and guide plate 115, the backrest 114 and guide plate 115 will be in a horizontal position.

[0033] like Figure 6 and 7 As shown, guide plate 115 is connected to the operating table, and the transfer chair is brought close to the patient bed until backrest 114 is slid above the operating table.

[0034] like Figure 8 and 9 As shown, the leg plate 112 is released to raise it to a horizontal position, and the foot plate 1 is pushed to detach the support plate 1 from the transfer chair and move it above the operating table.

[0035] exist Figure 8 During the process of the leg plate 112 rising to the horizontal position, since the hinge between the foot plate 111 and the leg plate 112 is a 90° limiting hinge, the foot plate 111 itself will also be in a horizontal state.

[0036] like Figure 4 As shown, in the above preferred embodiment, in order to facilitate the horizontal upward rotation of the leg plate 112, the connecting frame 2 is also equipped with a pushing structure 22. The pushing structure 22 includes a rotating rod, a gear and a pushing rod. One end of the rotating rod extends to the gap in the side wall of the connecting frame 2, and the other end is fixed to the inner wall of the gear by a key. The side of the pushing rod near the gear is designed with a toothed structure and meshes with the teeth of the gear. The end away from the gear is equipped with a roller structure and supports the leg plate 112 at an angle.

[0037] By turning the rotating rod, the gear rotates, which in turn pushes the push rod upward, thus reducing the force required for manual pushing and support. This also eliminates the possibility of injury during squatting and lifting. Since the leg plate 112 rubs against the push rod during rotation, a roller structure is designed to convert static friction into sliding friction to reduce friction.

[0038] At the same time, the roller structure also helps guide the support plate 1 to move as a whole above the operating table.

[0039] like Figure 3 As shown, in the above preferred embodiment, in order to facilitate the fixing of each short plate 11, the baffle 21 includes an "L"-shaped connecting plate and a rubber pad. One end of the connecting plate is fixed to the connecting frame 2 by bolts, and the other end is embedded in the embedding groove 12. The rubber pad is located on the contact surface between the connecting plate and the embedding groove 12.

[0040] The width of the baffle 21 is slightly smaller than the width of the embedding groove 12, so that the baffle 21 can be rotated into the interior of the embedding groove 12. The thickness of the connecting plate and the rubber pad is equal to the height of the embedding groove 12, so that the baffle 21 can be fixed by the friction of the rubber pad after insertion, and will not slip out, thus preventing a safety accident.

[0041] To facilitate the insertion and use of the floating wheel 3, a floating wheel clearance groove is also provided on the side of the insertion groove 12 away from the short plate 11.

[0042] The floating wheel 3 includes a fixed plate, a limiting pad, and a floating wheel structure. One side of the fixed plate is fixed to the floating wheel structure, and the other side is fixed to the limiting pad with glue. The size of the fixed plate corresponds to the inner wall size of the baffle 21.

[0043] It can be used normally after being inserted into the mounting slot 12 via the fixing plate. The limiting pad has the same function as the rubber pad, increasing friction and preventing slippage.

[0044] As a supplement to the use of the transfer chair:

[0045] The height of the seat 113 is the same as the height of the operating table, which can reduce the time wasted when adjusting the height.

[0046] A limiting filling soft plate can also be inserted between two adjacent parts of the short plate 11 to reduce patient discomfort.

[0047] The above embodiments are merely illustrative of the principles and effects of this patent application and are not intended to limit this patent application. Any person skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of this patent application. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this patent application shall still be covered by the claims of this patent application.

Claims

1. A transfer chair, comprising a connecting frame (2), casters, and a support plate (1); characterized in that, The support plate (1) is composed of multiple short plates (11) connected by hinges. Each short plate (11) has an embedded groove (12) on its back and is fixed to the connecting frame (2) by a baffle (21). The support plate (1) is also equipped with multiple floating wheels (3), which are placed in a spare box fixed to the connecting frame (2). The short board (11) is divided into five parts: footboard (111), legboard (112), seatboard (113), backrest (114), and guideboard (115). A pair of insert plates (110) are symmetrically fixed to the back of each of the legboard (112), seatboard (113), backrest (114), and guideboard (115). The short board (111) is connected to the back of each of the legboard (112), seatboard (113), backrest (114), and guideboard (115). 1) The hinges between the leg plate (112) and the leg plate (112) are all 90° limiting hinges. The embedded grooves (12) on the back of the leg plate (112), the backrest (114) and the guide plate (115) are connected to the connecting frame (2) after being inserted into the baffle (21) on the side of the connecting frame (2). The embedded groove (12) on the back of the seat plate (113) is equipped with a floating wheel (3) and is supported by a sliding plate fixedly connected to the connecting frame (2) below the floating wheel (3). The connecting frame (2) is also equipped with a pushing structure (22), which includes a rotating rod, a gear and a pushing rod. One end of the rotating rod extends to the gap in the side wall of the connecting frame (2), and the other end is fixed to the inner wall of the gear by a key. The pushing rod has a toothed structure on the side near the gear and meshes with the teeth of the gear. A roller structure is installed on the side away from the gear and supports the leg plate (112) at an angle.

2. The transfer chair according to claim 1, characterized in that: The baffle (21) includes an "L"-shaped connecting plate and a rubber pad. One end of the connecting plate is fixed to the connecting frame (2) by bolts, and the other end is embedded in the embedding groove (12). The rubber pad is located on the contact surface between the connecting plate and the embedding groove (12).

3. The transfer chair according to claim 1, characterized in that: A floating wheel avoidance groove is also provided on the side of the embedded groove (12) away from the short plate (11).

4. The transfer chair according to claim 3, characterized in that: The floating wheel (3) includes a fixed plate, a limiting pad and a floating wheel structure. One side of the fixed plate is fixed to the floating wheel structure, and the other side is fixed to the limiting pad with glue. The size of the fixed plate corresponds to the inner wall size of the baffle (21).

5. The transfer chair according to claim 1, characterized in that: The height of the seat (113) is the same as the height of the operating table.

6. The transfer chair according to claim 1, characterized in that: A limiting filler plate can also be inserted between two adjacent parts of the short plate (11).