A safe wheelchair device

Abstract

The application discloses a safe wheelchair device and belongs to the technical field of medical instruments, which comprises a wheelchair, a supporting plate, a wound protection assembly and a bandage assembly. The supporting plate is located on the back side of the backrest of the wheelchair. The wound protection assembly can be worn on the front side of the chest of a patient. The wound protection assembly is composed of two C-shaped splicing pieces. The two C-shaped splicing pieces can form a circular ring structure after being combined and spliced. The bandage assembly is arranged on the two C-shaped splicing pieces and is connected with the supporting plate after covering the shoulders and the waist of the patient. After the bandage assembly covers the shoulders and the waist of the patient in an X-shaped mode, the patient's upper body part can be bound on the backrest of the wheelchair by being worn on the front side of the chest of the patient in cooperation with the two C-shaped splicing pieces. Meanwhile, the circular ring structure composed of the two C-shaped splicing pieces can avoid contacting the postoperative wound, so that the extrusion damage to the postoperative wound part of the chest of the patient can be effectively prevented.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a safety wheelchair device. Background Technology

[0002] A wheelchair is a chair equipped with wheels that can help replace walking. It is an important mobility tool for the injured, sick, and disabled to use at home for rehabilitation, transportation, medical treatment, and outdoor activities. Wheelchairs not only meet the mobility needs of people with limb disabilities and limited mobility, but more importantly, they facilitate the movement and care of family members, and enable patients to exercise and participate in social activities with the help of wheelchairs.

[0003] Post-operative patients using wheelchairs for outdoor activities often experience limb incomplete recovery and insufficient self-control, necessitating the use of safety harnesses to prevent them from falling off the wheelchair during movement. However, conventional wheelchair safety harnesses typically cover the patient's chest area to secure the upper body to the wheelchair back. For patients who have undergone open chest surgery, the surgical wound can cause pressure on the wound, leading to compression injuries and discomfort. This device addresses this need for a safer wheelchair system. Summary of the Invention

[0004] This invention provides a safety wheelchair device to solve the aforementioned technical problems.

[0005] The present invention adopts the following technical solution: including a wheelchair, a support plate, a wound protection component, and a strap component. The wheelchair is a medical nursing wheelchair used in clinical nursing, consisting of a frame, a seat cushion, a backrest, footrests, and wheels. The support plate is located on the back of the wheelchair, and both ends of the support plate are fixedly connected to the frames on both sides of the backrest. The wound protection component can be worn on the front of the patient's chest cavity. The wound protection component consists of two C-shaped splicing pieces, which can be combined to form a ring structure. The strap component is set on the two C-shaped splicing pieces, and the strap component is connected to the support plate after covering the patient's shoulders and waist.

[0006] The two C-shaped connectors from the wound protection assembly are placed together on the postoperative wound site on the front of the patient's chest cavity. This allows the strap assembly to cover and restrain the patient's shoulders and waist when the two C-shaped connectors are combined and spliced. The two C-shaped connectors are then fixed in place, so that they cover the area around the patient's postoperative chest wound. The strap assembly is then used to secure the patient's upper body to the back of the wheelchair.

[0007] Furthermore, an arc-shaped baffle that matches the size of the C-shaped splice is fixedly provided on the rear side of the inner and outer arc edges of each C-shaped splice, and a flexible silicone pad is provided on the rear side of each C-shaped splice and the rear side of the arc-shaped baffle.

[0008] Furthermore, the strap assembly includes a first shoulder strap, a second shoulder strap, a first waist belt, and a second waist belt. The front ends of the first shoulder strap and the first waist belt are fixedly connected to the arc-shaped stop strip on the outer arc edge of one of the C-shaped splicing pieces, and the connection point is near the two ends of the arc-shaped stop strip. The front ends of the second shoulder strap and the second waist belt are fixedly connected to the arc-shaped stop strip on the outer arc edge of another C-shaped splicing piece, and the connection point is near the two ends of the arc-shaped stop strip. That is, the first shoulder strap, the second shoulder strap, the first waist belt, and the second waist belt are arranged in an X shape on the two C-shaped splicing pieces. The ends of the first shoulder strap and the second shoulder strap are fixedly connected to the upper end of the support plate. The ends of the first waist belt and the second waist belt are fixedly connected to the bottom two sides of the support plate after being covered by the side brackets of the wheelchair backrest. The first shoulder strap, the second shoulder strap, the first waist belt, and the second waist belt are all straps that can be adjusted in length.

[0009] Furthermore, the wound protection component is provided with a protective cover, which is hemispherical and has a cavity on its inner side, forming a shell-like structure. The protective cover is hollow, and a circular ring is fixedly provided on the top of the protective cover. The inner diameter of the ring is adapted to the outer diameter of the circular structure formed by the combination and splicing of two C-shaped splicing parts, and the thickness of the ring is adapted to the thickness of the two C-shaped splicing parts. A circular baffle is provided in the cavity of the protective cover, and the outer wall of the baffle is fixedly connected to the inner wall of the protective cover.

[0010] The inner ring of the collar on the protective cover is fitted onto the outer arc edge of the two C-shaped splicing pieces, which allows the circular baffle inside the cavity of the protective cover to abut against the two C-shaped splicing pieces. The collar on the protective cover will limit the circular structure formed by the combination of the two C-shaped splicing pieces, thereby restricting the displacement of the two C-shaped splicing pieces in the direction to both sides of the patient.

[0011] After the first shoulder strap, second shoulder strap, first waist belt, and second waist belt provide X-shaped coverage for the patient's shoulders and both sides of the waist, two C-shaped splicing pieces can be worn on the front of the patient's chest to secure the patient's upper body to the wheelchair backrest. This prevents the patient from detaching from the wheelchair backrest and causing the entire body to fall off the wheelchair during movement.

[0012] Furthermore, a groove is provided on the inner wall of the annular collar on the protective cover. One end of the groove extends on the inner wall of the collar toward the two C-shaped splicing pieces to form a groove extension. A slider adapted to the size of the groove is fixedly provided on the outer arc edge of one of the C-shaped splicing pieces. When the collar is fitted onto the outer arc edge of the two C-shaped splicing pieces, the slider is positioned within the groove on the inner wall of the collar.

[0013] The sliding groove area on the inner wall of the collar constrains the slider on the C-shaped splice, preventing the collar from detaching from the outer arc edges of the two C-shaped splices. Combined with the constraint effect of the collar on the outer arc edges of the two C-shaped splices, the displacement of the two C-shaped splices is limited, thereby implementing a locking function for the ring-shaped structure formed by the combination of the two C-shaped splices.

[0014] Furthermore, each of the C-shaped splicing components has a C-shaped groove on the part facing the protective cover. The C-shaped groove extends from the first end to the last end of the C-shaped splicing component. Each C-shaped splicing component has four equally spaced arc-shaped grooves on the part facing the wheelchair. A rectangular through groove is provided in the middle section of each arc-shaped groove. The rectangular through groove extends from the corresponding arc-shaped groove to the C-shaped groove, so that the C-shaped grooves on the C-shaped splicing component are in communication with each corresponding arc-shaped groove. A pressure block is provided at the arc-shaped groove on each C-shaped splicing component. Each pressure block is adapted to the size of the arc-shaped groove. A stop block adapted to the size of the rectangular through groove is fixedly provided on the part of each pressure block facing the C-shaped groove. Each stop block extends from the corresponding rectangular through groove into the C-shaped groove. The middle section of each stop block facing the C-shaped groove is raised, that is, each stop block is triangular prism shaped.

[0015] Furthermore, each of the pressure blocks can move outward from its corresponding arc-shaped groove. Each pressure block has flexible spring-loaded components at both ends. The two ends of each flexible spring-loaded component are fixedly connected to the same side end of the corresponding pressure block and the inner wall of the corresponding arc-shaped groove. Each flexible spring-loaded component is made of silicone material, capable of deforming after being stretched and springing back after stretching stops. Under non-stressed conditions, each flexible spring-loaded component can pull between the two ends of each pressure block and the corresponding arc-shaped groove, allowing each pressure block to be positioned within its corresponding arc-shaped groove.

[0016] Furthermore, half of the multiple pressure blocks on each C-shaped splice are provided with an adhesive layer, and the other half are provided with a flexible silicone pad. Both the adhesive layer and the flexible silicone pad are located on the side of the corresponding pressure block facing the wheelchair backrest. When two C-shaped splices are assembled, the adhesive layer and the flexible silicone pad are arranged alternately on all the pressure blocks of both C-shaped splices. That is, the pressure blocks on one C-shaped splice are identical to the pressure blocks on the other C-shaped splice that are aligned in a straight line.

[0017] Furthermore, a circular adjusting ring is provided on the baffle portion of the protective cover. The size of the adjusting ring is adapted to the size of the C-shaped groove in the combined splicing state of the two C-shaped splicing pieces. The adjusting ring can rotate within the C-shaped groove in the combined splicing state of the two C-shaped splicing pieces. The part of the adjusting ring facing the protective cover is fixedly connected to the baffle, and a certain gap is left between the adjusting ring and the inner and outer rings of the circular baffle. The part of the adjusting ring facing the two C-shaped splicing pieces is provided with four adjusting grooves of the same size as the abutment. The four adjusting grooves are arranged at equal intervals. In the combined splicing state of the two C-shaped splicing pieces, the four arc-shaped grooves on the two C-shaped splicing pieces combine to form eight arc-shaped grooves, and the positions of the four adjusting grooves on the adjusting ring are the same as the positions of the four arc-shaped grooves arranged at equal intervals among the eight arc-shaped grooves.

[0018] When the pressure block with the adhesive layer moves towards the patient's chest cavity and makes contact, it can adhere to the patient's clothing or skin, thereby temporarily attaching the two C-shaped splices to the patient's upper body. This allows the caregiver to stop controlling the two C-shaped splices and the protective shield. The pressure block with the flexible silicone pad can replace the other four pressure blocks with the adhesive layer to make contact with the patient's clothing or skin, and form a barrier between the two C-shaped splices and the patient's chest cavity area, thereby providing a decompression effect.

[0019] Furthermore, a leg protection component is provided at the bottom of the wheelchair seat. The leg protection component includes an adjustment plate and two baffles. The adjustment plate is vertically positioned at the bottom of the wheelchair seat. A T-shaped slider is provided at the top of the adjustment plate. A slide rail is provided at the bottom of the wheelchair seat for the T-shaped slider to slide. The T-shaped slider at the top of the adjustment plate is located within the slide rail. The two baffles are symmetrically arranged on both sides of the adjustment plate at an inclined angle, and the inclination angle of the two baffles is adapted to the flexion and extension angle of the patient's leg when the foot is placed on the footrest. Both baffles are rotatably connected to the adjustment plate on the same side, and both baffles are provided with a locking groove on the same side. A locking plate is provided on the adjustment plate between the two baffles. The bottom of the locking plate is rotatably connected to the adjustment plate, and the thickness of the locking plate is adapted to the thickness of the locking grooves on the two baffles.

[0020] Furthermore, a lever is provided on one side of the bottom slide rail of the wheelchair cushion. The middle section of the lever is rotatably connected to the bottom of the wheelchair cushion. The front end of the lever passes through the side end of the slide rail and extends to the T-shaped slider at the top of the adjustment plate. The part of the lever that passes through the slide rail is provided with threads. The contact part of the slide rail with the lever is provided with a matching threaded groove. A silicone pad is provided at the front end of the lever. The end of the lever extends outward in a straight line towards the outside of the wheelchair and then bends upward, so that the lever as a whole forms an L shape.

[0021] During use, the two baffles can block the upper part of the patient's lower legs on both sides, thereby preventing the patient from kicking their legs and causing their feet to fall off the wheelchair footrests while sitting in the wheelchair. After the adjustment plate has completed the displacement adjustment, the lever can be pulled so that the front end of the lever is gradually screwed into the threaded groove of the slide rail under the action of the thread, and the silicone pad at the front end of the lever abuts against the side of the adjustment plate, thereby restricting the position of the adjustment plate on the slide rail.

[0022] The above-described at least one technical solution adopted in the embodiments of the present invention can achieve the following beneficial effects:

[0023] Firstly, after the first shoulder strap, second shoulder strap, first waist belt, and second waist belt provide X-shaped coverage for the patient's shoulders and both sides of the waist, two C-shaped splicing pieces can be worn on the front of the patient's chest cavity to secure the patient's upper body to the wheelchair backrest. This prevents the patient from detaching from the wheelchair backrest during movement, thus avoiding the safety hazard of the entire body falling off the wheelchair. At the same time, the circular structure formed by the two C-shaped splicing pieces avoids contact with the postoperative wound and, together with the strap components, pulls the patient's upper body to the wheelchair backrest from the chest cavity area around the wound, effectively preventing compression injury to the postoperative chest wound. Secondly, the protective cover provides protection for the front area of ​​the postoperative chest wound, preventing external objects from touching the wound. The open design of the protective cover allows for ventilation of the postoperative wound area and allows caregivers to observe the wound condition.

[0024] Secondly, when the patient is in a wheelchair, the two C-shaped connectors from the wound protection assembly can be placed together on the postoperative wound site on the front of the patient's chest cavity. Then, the strap assembly can be adjusted according to the location of the wound on the chest cavity, so that the strap assembly, with the two C-shaped connectors in a combined state, covers and restrains the patient's shoulders and waist. Subsequently, the two C-shaped connectors are fixed, so that the two C-shaped connectors cover the area around the postoperative wound on the patient's chest cavity, providing a support area for the strap assembly on the front of the patient's chest cavity without contacting the wound. The strap assembly is then used to secure the patient's upper body to the back of the wheelchair, preventing the patient from falling off the wheelchair due to insufficient self-control during wheelchair movement.

[0025] Third, when not using this device, the snap-fit ​​plate can be adjusted to its original position so that the two ends of the snap-fit ​​plate disengage from the snap-fit ​​grooves of the two baffles. Then, the two baffles can be rotated to a vertical position, and the adjusting plate can be retracted into the bottom of the wheelchair seat by connecting the two baffles.

[0026] After the adjustment plate has been adjusted, the end of the lever can be pulled, causing the front end of the lever to gradually screw into the threaded groove of the slide rail under the action of the threaded engagement. The silicone pad at the front end of the lever will then abut against the side of the adjustment plate, thereby restricting the position of the adjustment plate on the slide rail. Next, when the adjustment plate is adjusted to be below the patient's two front legs, the two baffles can be adjusted to a horizontal position, so that the two baffles can support the patient's two lower legs, thereby providing a place for the patient's legs to rest and allowing the patient's legs to relax. Attached Figure Description

[0027] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this invention, illustrate exemplary embodiments of the invention and are used to explain the invention, but do not constitute an undue limitation of the invention. In the drawings:

[0028] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0029] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;

[0030] Figure 3 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 3 ;

[0031] Figure 4 This is a schematic diagram of the structure of the protective cover and strap assembly in this invention;

[0032] Figure 5 This is a schematic diagram of the pressure block in the present invention;

[0033] Figure 6 This is a schematic diagram of the disassembled structure of the wound protection component in this invention. Figure 1 ;

[0034] Figure 7 This is a schematic diagram of the disassembled structure of the protective cover and the adjusting ring in this invention;

[0035] Figure 8 This is a schematic diagram showing the disassembled structure of the wound protection component and the bandage component in this invention;

[0036] Figure 9 This is a schematic diagram of the disassembled structure of the wound protection component in this invention. Figure 2 ;

[0037] Figure 10 This is a schematic diagram of the disassembled structure of the wound protection component in this invention. Figure 3 ;

[0038] Figure 11 This is a schematic diagram of the disassembled structure of the wound protection component in this invention. Figure 4 ;

[0039] Figure 12 This is a schematic diagram of the motion state structure of the pressure block in this invention. Figure 1 ;

[0040] Figure 13 This is a schematic diagram of the motion state structure of the pressure block in this invention. Figure 2 ;

[0041] Figure 14 This is a schematic diagram of the leg protection component in use according to the present invention;

[0042] Figure 15 This is a schematic diagram of the leg protection component in the present invention. Figure 1 ;

[0043] Figure 16 This is a schematic diagram showing the disassembled structure of the leg protection component in this invention;

[0044] Figure 17 This is a schematic diagram of the leg protection component in the present invention. Figure 2 .

[0045] Figure Labels

[0046] Wheelchair 1, Frame 11, Seat Cushion 12, Backrest 13, Footrest 14, Support Plate 2, Wound Protection Component 3, C-shaped Connector 31, C-shaped Groove 311, Arc Groove 312, Rectangular Through-slot 313, Arc-shaped Stop Strip 32, Pressure Block 33, Adhesive Layer 331, Flexible Silicone Pad 332, Abutment Block 34, Flexible Rebound Component 35, Strap Assembly 4, First Shoulder Strap 41, Second Shoulder Strap 42, First Waist Belt 43, Second Waist Belt 44, Protective Cover 5, Loop 51, Baffle 52, Slide Groove 53, Slide Groove Extension 54, Slider 55, Adjusting Ring 56, Adjusting Groove 57, Leg Protection Component 6, Adjusting Plate 61, Baffle 62, T-shaped Slider 63, Slide Rail 64, Snap-fit ​​Groove 65, Snap-fit ​​Plate 66, Lever 67. Detailed Implementation

[0047] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0048] The technical solutions provided by the various embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0049] This invention provides a safety wheelchair device, including a wheelchair 1, a support plate 2, a wound protection assembly 3, and a strap assembly 4, as shown in the attached drawing. Figures 1 to 4 As shown, the wheelchair 1 is a medical nursing wheelchair used in clinical nursing, consisting of a frame 11, a seat cushion 12, a backrest 13, footrests 14, and wheels. The support plate 2 is located on the backrest 13 of the wheelchair 1, and the two ends of the support plate 2 are fixedly connected to the frame 11 on both sides of the backrest 13. The wound protection component 3 can be worn on the front of the patient's chest cavity. The wound protection component 3 is composed of two C-shaped splicing parts 31. The two C-shaped splicing parts 31 can form a ring structure after being combined and spliced. The strap component 4 is set on the two C-shaped splicing parts 31, and the strap component 4 is connected to the support plate 2 after covering the patient's shoulders and waist.

[0050] When the postoperative patient is sitting in wheelchair 1, the two C-shaped splice pieces 31 of the wound protection component 3 can be placed together on the postoperative wound site on the front of the patient's chest cavity. Then, the strap component 4 is adjusted according to the position of the wound on the chest cavity so that the strap component 4 covers and restrains the patient's shoulders and waist when the two C-shaped splice pieces 31 are combined. Then, the two C-shaped splice pieces 31 are fixed so that the two C-shaped splice pieces 31 cover the area around the postoperative wound on the patient's chest cavity. Without contacting the wound, the strap component 4 provides a support area on the front of the patient's chest cavity. The strap component 4 is used to bind the patient's upper body to the backrest 13 of wheelchair 1 to prevent the patient from falling off wheelchair 1 due to insufficient self-control during the movement of wheelchair 1.

[0051] Preferred options are shown in the appendix. Figure 6 and 7 As shown, an arc-shaped baffle 32 adapted to the size of the C-shaped splice 31 is fixedly provided on the rear side of the inner arc edge and the outer arc edge of each C-shaped splice 31. A flexible silicone pad 332 is provided on the rear side of each C-shaped splice 31 and the rear side of the arc-shaped baffle 32.

[0052] See attached document Figure 8As shown, the strap assembly 4 includes a first shoulder strap 41, a second shoulder strap 42, a first waist belt 43, and a second waist belt 44. The front ends of the first shoulder strap 41 and the first waist belt 43 are fixedly connected to the arc-shaped retaining strip 32 on the outer arc edge of one of the C-shaped splicing pieces 31, and the connection points are near the two ends of the arc-shaped retaining strip 32. The front ends of the second shoulder strap 42 and the second waist belt 44 are fixedly connected to the arc-shaped retaining strip 32 on the outer arc edge of the other C-shaped splicing piece 31, and the connection points are near the two ends of the arc-shaped retaining strip 32. At the ends, the first shoulder strap 41, the second shoulder strap 42, the first waist belt 43, and the second waist belt 44 are arranged in an X shape on two C-shaped splicing pieces 31; the ends of the first shoulder strap 41 and the second shoulder strap 42 are fixedly connected to the upper end of the support plate 2, and the ends of the first waist belt 43 and the second waist belt 44 are fixedly connected to the bottom sides of the support plate 2 after being covered by the brackets 11 on both sides of the backrest 13 of the wheelchair 1. The first shoulder strap 41, the second shoulder strap 42, the first waist belt 43, and the second waist belt 44 are all adjustable straps.

[0053] Preferred options are shown in the appendix. Figures 5 to 7 As shown, the wound protection component 3 is provided with a protective cover 5. The protective cover 5 is hemispherical and has a cavity on its inner side, forming a shell-like structure. The protective cover 5 is hollow. A circular ring 51 is fixedly provided on the top of the protective cover 5. The inner diameter of the ring 51 is adapted to the outer diameter of the circular structure formed by the combination and splicing of two C-shaped splicing pieces 31, and the thickness of the ring 51 is adapted to the thickness of the two C-shaped splicing pieces 31. A circular baffle 52 is provided in the cavity of the protective cover 5. The outer wall of the baffle 52 is fixedly connected to the inner wall of the protective cover 5. Both the wound protection component 3 and the protective cover 5 are made of lightweight materials.

[0054] See attached document Figures 1 to 9 As shown, when using this device, the patient needs to sit in wheelchair 1 with their back in contact with the backrest 13 of wheelchair 1. Place the two C-shaped splicing pieces 31 together on both sides of the patient's postoperative thoracic wound, so that the first shoulder strap 41 and the first waist belt 43 can cover the patient's shoulder and waist on the same side, while the second shoulder strap 42 and the second waist belt 44 cover the patient's other shoulder and waist. Ensure that the C-shaped splicing pieces 31 can be spliced ​​together to form a ring shape. Then, adjust the lengths of the first shoulder strap 41, the second shoulder strap 42, the first waist belt 43 and the second waist belt 44 accordingly so that the first shoulder strap 41, the second shoulder strap 42, the first waist belt 43 and the second waist belt 44 can respectively form a close-fitting coverage of the patient's shoulders and both sides of the waist.

[0055] After aligning the inner cavity of the protective cover 5 with the patient's chest cavity, press down on the two C-shaped splicing pieces 31 to prevent misalignment of the two C-shaped splicing pieces 31. Then, attach the collar 51 on the protective cover 5 to the outside of the two C-shaped splicing pieces 31. The protective cover 5 is designed with a hollow structure to facilitate the caregiver's hand to grasp and control the protective cover 5.

[0056] Applying a slight pressure from the outside of the protective cover 5 causes the inner ring of the collar 51 on the protective cover 5 to engage with the outer arc edge of the two C-shaped splicing pieces 31, and the annular baffle 52 inside the cavity of the protective cover 5 to abut against the two C-shaped splicing pieces 31. At this time, the collar 51 on the protective cover 5 will limit the annular structure formed by the combination of the two C-shaped splicing pieces 31, thereby restricting the displacement of the two C-shaped splicing pieces 31 in the direction to both sides of the patient.

[0057] Preferred options are shown in the appendix. Figure 7 and 9 As shown, a groove 53 is provided on the inner wall of the annular collar 51 on the protective cover 5. One end of the groove 53 extends from the inner wall of the collar 51 toward the two C-shaped splicing pieces 31 to form a groove extension 54. A slider 55 that matches the size of the groove 53 is fixedly provided on the outer arc edge of one of the C-shaped splicing pieces 31. When the collar 51 is sleeved on the outer arc edge of the two C-shaped splicing pieces 31, the slider 55 is located in the groove 53 on the inner wall of the collar 51.

[0058] When the protective cover 5 and the collar 51 are fitted onto the two C-shaped splicing pieces 31, the groove extension 54 on the inner wall of the collar 51 can be aligned with the slider 55 on one of the C-shaped splicing pieces 31. Then, the protective cover 5 is pressed so that the slider 55 on the C-shaped splicing piece 31 can move into the groove 53 through the groove extension 54. Then, the protective cover 5 is rotated to drive the collar 51 to rotate synchronously, so that the slider 55 can enter the groove 53 area on the inner wall of the collar 51. In this way, the groove 53 area on the inner wall of the collar 51 forms a constraint on the slider 55 on the C-shaped splicing piece 31, so that the collar 51 cannot detach from the outer arc edge of the two C-shaped splicing pieces 31.

[0059] Secondly, the constraint effect of the collar 51 on the outer arc edge of the two C-shaped splicing parts 31 is used to limit the displacement of the two C-shaped splicing parts 31, thereby implementing a locking function on the ring structure formed by the combination of the two C-shaped splicing parts 31, and preventing the patient's upper body from leaving the backrest 13 of the wheelchair 1 due to displacement of the splicing state of the two C-shaped splicing parts 31 during use.

[0060] Preferred options are shown in the appendix. Figures 9 to 12As shown, each of the C-shaped splicing components 31 has a C-shaped groove 311 on the part facing the protective cover 5. The C-shaped groove 311 extends from the first end to the last end of the C-shaped splicing component 31. Each C-shaped splicing component 31 has four equidistant arc-shaped grooves 312 on the part facing the wheelchair 1. A rectangular through groove 313 is provided in the middle section of each arc-shaped groove 312. The rectangular through groove 313 extends from the corresponding arc-shaped groove 312 to the C-shaped groove 311, so that the C-shaped grooves 311 on the C-shaped splicing component 31 are all aligned with the corresponding C-shaped grooves 312. The arc-shaped grooves 312 are in a connected state. Each arc-shaped groove 312 on each C-shaped splice 31 is provided with a pressure block 33. Each pressure block 33 is adapted to the size of the arc-shaped groove 312. Each pressure block 33 is fixedly provided with a stop block 34 adapted to the size of the rectangular through groove 313 at the part facing the C-shaped groove 311. Each stop block 34 extends out from the corresponding rectangular through groove 313 and extends into the C-shaped groove 311. The middle part of each stop block 34 facing the C-shaped groove 311 is raised, that is, each stop block 34 is triangular prism shape.

[0061] See attached document Figure 12 and 13 As shown, each of the pressure blocks 33 can move outward from the corresponding arc-shaped groove 312. Each pressure block 33 has a flexible spring member 35 at both ends. Both ends of each flexible spring member 35 are fixedly connected to the same side end of the corresponding pressure block 33 and the inner side wall of the corresponding arc-shaped groove 312. Each flexible spring member 35 is made of silicone material that can deform after being stretched and can rebound after the stretching stops. Under non-stressed normal conditions, each flexible spring member 35 can pull between the two ends of each pressure block 33 and the corresponding arc-shaped groove 312, so that each pressure block 33 can be placed in the corresponding arc-shaped groove 312.

[0062] Preferred options are shown in the appendix. Figure 5 As shown, half of the multiple pressure blocks 33 on each C-shaped splicing piece 31 are provided with an adhesive layer 331, and the other half are provided with a flexible silicone pad 332. The adhesive layer 331 and the flexible silicone pad 332 are both provided on the side of the corresponding pressure block 33 facing the backrest 13 of the wheelchair 1. When the two C-shaped splicing pieces 31 are in the combined splicing state, the adhesive layer 331 and the flexible silicone pad 332 are arranged alternately on all the pressure blocks 33 on the two C-shaped splicing pieces 31. That is, the pressure block 33 on one C-shaped splicing piece 31 and the pressure block 33 on the other C-shaped splicing piece 31 that are in a straight line with each other are the same.

[0063] Preferred options are shown in the appendix. Figures 9 to 13As shown, a circular adjusting ring 56 is provided on the baffle 52 of the protective cover 5. The size of the adjusting ring 56 is adapted to the size of the C-shaped groove 311 in the combined splicing state of the two C-shaped splicing parts 31. The adjusting ring 56 can rotate within the C-shaped groove 311 in the combined splicing state of the two C-shaped splicing parts 31. The part of the adjusting ring 56 facing the protective cover 5 is fixedly connected to the baffle 52, and there are gaps between the adjusting ring 56 and the inner and outer rings of the circular baffle 52. With a certain gap, the adjusting ring 56 has four adjusting grooves 57 of the same size as the abutment block 34 on the part facing the two C-shaped splicing parts 31. The four adjusting grooves 57 are arranged at equal intervals. When the two C-shaped splicing parts 31 are combined, the four arc-shaped grooves 312 on the two C-shaped splicing parts 31 combine to form eight arc-shaped grooves 312. The position of the four adjusting grooves 57 on the adjusting ring 56 is the same as the position of the four arc-shaped grooves 312 arranged at equal intervals among the eight arc-shaped grooves 312.

[0064] In order to facilitate the patient's transfer from the hospital bed to the wheelchair 1, the transfer needs to be completed next to the patient's bed. However, in clinical nursing, due to the small distance between the beds and the narrow space, it is not possible to carry out the operation with multiple caregivers when adjusting the two C-shaped splicing parts 31 and the strap assembly 4 to fit the patient.

[0065] See attached document Figure 12 and 13 As shown, when installing the two C-shaped splicing pieces 31, the caregiver can increase the length of the first shoulder strap 41, the second shoulder strap 42, the first waist belt 43, and the second waist belt 44, that is, adjust the coverage of the patient's shoulders and waist to a loose state. Then, after assembling the two C-shaped splicing pieces 31, press them onto the front of the patient's chest cavity, ensuring that the postoperative wound is located between the two C-shaped splicing pieces 31. Then, the protective cover 5 and the collar 51 are fitted onto the outer arc edge of the two C-shaped splicing pieces 31 and the protective cover 5 is rotated slightly, so that the protective cover 5 drives the adjusting ring 56 to rotate within the C-shaped groove 311 of the two C-shaped splicing pieces 31.

[0066] When the two C-shaped splicing pieces 31 are assembled, there are a total of eight pressure blocks 33 corresponding to the four arc-shaped grooves 312 on the two C-shaped splicing pieces 31. As the adjusting ring 56 rotates a certain angle, the four adjusting grooves 57 on the adjusting ring 56 will gradually engage with the abutment blocks 34 on the corresponding four pressure blocks 33. After the abutment blocks 34 enter the corresponding adjusting grooves 57, the corresponding pressure blocks 33 will be in a non-stressed state, and under the pulling action of the flexible spring members 35 at both ends of the pressure blocks 33, the pressure blocks 33 will be placed in the corresponding arc-shaped grooves 312. The area on the adjusting ring 56 where there are no adjusting grooves 57 will then engage with the abutment blocks 34 on the other four pressure blocks 33. 4. Applying a squeezing and pushing action causes the four pressure blocks 33 to disengage from the corresponding arc-shaped grooves 312. As the protective cover 5 continues to rotate, the four adjusting grooves 57 on the adjusting ring 56 will disengage from the abutment blocks 34 on the four pressure blocks 33 that were originally fitted together. As the adjusting grooves 57 and the abutment blocks 34 on the corresponding pressure blocks 33 are misaligned, the raised part of the middle section of the abutment block 34 will gradually move from the adjusting grooves 57 to the area on the adjusting ring 56 where the adjusting grooves 57 are not provided, and be squeezed and pushed by the area on the adjusting ring 56 where the adjusting grooves 57 are not provided, thereby causing the pressure blocks 33 that were originally in the corresponding arc-shaped grooves 312 to disengage.

[0067] When four of the pressure blocks 33 with adhesive layers 331 move towards the patient's chest cavity and make contact, the adhesive layers 331 on these four pressure blocks 33 can adhere to the patient's upper clothing or skin, thereby temporarily attaching the two C-shaped splice pieces 31 to the patient's upper body. At this time, the caregiver can stop controlling the two C-shaped splice pieces 31 and the protective cover 5. Subsequently, the caregiver can adjust the length of the first shoulder strap 41, the second shoulder strap 42, the first waist belt 43, and the second waist belt 44 until they form a close-fitting coverage of the patient's shoulders and waist. After completing the operation, the protective cover 5 can be rotated slightly to move the four adjusting grooves 57 on the adjusting ring 56 to the areas of the four pressure blocks 33 with adhesive layers 331, so that the pressure blocks 33... The abutment 34 on the 3 is placed into the corresponding adjustment groove 57, so that the pressure block 33 with the adhesive layer 331, which originally sticks to the patient's clothes or skin, retracts back into the corresponding arc-shaped groove 312, avoiding the adhesive layer 331 sticking to the patient's clothes or skin for a long time. Then, the area on the adjustment ring 56 without the adjustment groove 57 will squeeze and push the abutment 34 on the other four pressure blocks 33 with flexible silicone pads 332, so that the four pressure blocks 33 with flexible silicone pads 332 replace the other four pressure blocks 33 with adhesive layers 331 to make contact with the patient's clothes or skin, and form a barrier between the two C-shaped splice 31 and the patient's chest area, thereby providing a decompression effect.

[0068] Secondly, during subsequent use, the protective cover 5 can be rotated to adjust the contact state between the four pressure blocks 33 equipped with flexible silicone pads 332 and the patient's chest cavity area. This allows for alternating use of the two C-shaped splicing pieces 31 with the accessible surfaces of the patient's chest cavity area, thereby preventing discomfort caused by prolonged fixed contact with the patient's chest cavity area. At the same time, the entire operation can be completed by only one caregiver, making it more convenient to perform the operation in narrow spaces beside the bed in clinical nursing.

[0069] Preferably, a leg protection component 6 is provided at the bottom of the seat cushion 12 of the wheelchair 1. The leg protection component 6 includes an adjustment plate 61 and two baffles 62. The adjustment plate 61 is vertically arranged in the bottom area of ​​the seat cushion 12 of the wheelchair 1. A T-shaped slider 63 is provided at the top of the adjustment plate 61. A slide rail 64 is provided in the bottom area of ​​the seat cushion 12 of the wheelchair 1 for the T-shaped slider 63 to slide. The T-shaped slider 63 at the top of the adjustment plate 61 is located in the slide rail 64.

[0070] Two baffles 62 are symmetrically arranged at an angle on both sides of the adjusting plate 61, and the angle of inclination of the two baffles 62 is adapted to the flexion and extension angle of the patient's leg when the foot is placed on the footrest 14. Both baffles 62 are rotatably connected to the adjusting plate 61 on the same side, and both baffles 62 are provided with a locking groove 65 on the same side. A locking plate 66 is provided on the adjusting plate 61 between the two baffles 62. The bottom of the locking plate 66 is rotatably connected to the adjusting plate 61, and the thickness of the locking plate 66 is adapted to the thickness of the locking groove 65 on the two baffles 62.

[0071] Preferably, a lever 67 is provided on one side of the bottom slide rail 64 of the wheelchair 1 seat cushion 12. The middle section of the lever 67 is rotatably connected to the bottom of the wheelchair 1 seat cushion 12. The front end of the lever 67 passes through the side end of the slide rail 64 and extends to the T-shaped slider 63 at the top of the adjustment plate 61. The part of the lever 67 that passes through the slide rail 64 is provided with threads. The contact part of the slide rail 64 with the lever 67 is provided with a matching threaded groove. A silicone pad is provided at the front end of the lever 67. The end of the lever 67 extends straight outward from the wheelchair 1 and then bends upward, so that the lever 67 as a whole forms an L shape.

[0072] After the patient's chest cavity is fixed, the adjustment plate 61 can be pulled out from the bottom of the seat cushion 12 of the wheelchair 1. With the two baffles 62 blocking the area above the patient's lower legs, when the patient's feet are on the footrest 14, the two baffles 62 can be adjusted to a horizontal position. Then, the locking plate 66 can be rotated so that the two ends of the locking plate 66 are inserted into the locking grooves 65 on the two baffles 62. This restricts the rotation of the two baffles 62 on the adjustment plate 61. During use, the two baffles 62 can block the area above the patient's lower legs, thereby preventing the patient from kicking their legs and causing their feet to fall off the footrest 14 of the wheelchair 1 while sitting in the wheelchair 1.

[0073] When not using this device, the snap-fit ​​plate 66 can be adjusted to its original position so that the two ends of the snap-fit ​​plate 66 disengage from the snap-fit ​​grooves 65 of the two baffles 62. Then, the two baffles 62 are rotated to a vertical position, and the adjusting plate 61 is retracted into the bottom of the wheelchair 1 seat cushion 12 by connecting the two baffles 62.

[0074] After the adjustment plate 61 has completed its displacement adjustment, the end of the lever 67 can be pulled, causing the front end of the lever 67 to gradually screw into the threaded groove of the slide rail 64 under the action of the threaded engagement. This causes the silicone pad at the front end of the lever 67 to abut against the side of the adjustment plate 61, thereby restricting the position of the adjustment plate 61 on the slide rail 64. Secondly, when the adjustment plate 61 is adjusted to be below the patient's two front legs, the two baffles 62 can be adjusted to a horizontal position, so that the two baffles 62 can support the patient's two lower legs, thereby providing a place for the patient's legs to rest and allowing the patient's legs to relax.

[0075] The above description is merely an 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 principle of the present invention should be included within the scope of the claims of the present invention.

Claims

1. A safety wheelchair device, comprising a wheelchair (1) consisting of a frame (11), a seat cushion (12), a backrest (13), footrests (14), and wheels, characterized in that, Also includes: Support plate (2), the support plate (2) is located behind the backrest (13) on the wheelchair (1), wound protection component (3), the wound protection component (3) can be worn on the front part of the patient's chest cavity, the wound protection component (3) is composed of two C-shaped splicing parts (31), the two C-shaped splicing parts (31) can form a ring structure after being spliced ​​together, strap component (4), the strap component (4) is set on the two C-shaped splicing parts (31), and the strap component (4) is connected to the support plate (2) after covering the patient's shoulder and waist, the wound protection component (3) is provided with a protective cover (5), the protective cover (5) is hemispherical, the inner side of the protective cover (5) is provided with a cavity, the protective cover (5) is hollow, the protective cover (5) is hollow, the protective cover (5) is hollow, the protective cover (5) is hollow, the protective cover (5) is hollow, the protective cover (5) is hollow, the protective cover (5) is hollow, the protective cover (5) is hollow, the protective cover (5) is hollow, the protective cover (5) is hollow, the protective cover (5) is hollow, the protective cover (2) is hollow, the protective cover (3 ... A circular ring (51) is fixedly installed on the top of the protective cover (5). A circular baffle (52) is installed in the cavity of the protective cover (5). The outer wall of the baffle (52) is fixedly connected to the inner wall of the protective cover (5). A groove (53) is provided on the inner wall of the circular ring (51) on the protective cover (5). One end of the groove (53) extends on the inner wall of the ring (51) towards the two C-shaped splicing parts (31) and forms a groove extension (54). A slider (55) of the same size as the groove (53) is fixedly installed on the outer arc edge of one of the C-shaped splicing parts (31). A C-shaped groove (311) is provided on the part of each C-shaped splicing part (31) facing the protective cover (5). The groove (311) extends from the first end to the last end of the C-shaped splice (31). Each C-shaped splice (31) has four equally spaced arc-shaped grooves (312) on the part facing the wheelchair (1). A rectangular through groove (313) is provided in the middle section of each arc-shaped groove (312). The rectangular through groove (313) extends from the corresponding arc-shaped groove (312) to the C-shaped groove (311). Each arc-shaped groove (312) on the C-shaped splice (31) has a pressure block (33) that matches the size of the arc-shaped groove (312). Each pressure block (33) facing the C-shaped groove (311) has a stop block (34) that matches the size of the rectangular through groove (313). Each stop block (34) has a stop block (34) that matches the size of the rectangular through groove (313). 4) Each block (34) extends from the corresponding rectangular through slot (313) into the C-shaped groove (311). The middle section of each block (34) facing the C-shaped groove (311) is raised. Each block (33) can move from the corresponding arc-shaped groove (312) to the outside. Each block (33) has a flexible spring element (35) at both ends. The two ends of each flexible spring element (35) are fixedly connected to the same side end of the corresponding block (33) and the inner wall of the corresponding arc-shaped groove (312). Under non-stressed normal conditions, each flexible spring element (35) can pull between the two ends of each block (33) and the corresponding arc-shaped groove (312), so that each block (33) can be placed in the corresponding arc-shaped groove (312).Half of the multiple pressure blocks (33) on each C-shaped splice (31) are provided with an adhesive layer (331), and the other half are provided with a flexible silicone pad (332). The adhesive layer (331) and the flexible silicone pad (332) are both provided on the side of the corresponding pressure block (33) facing the backrest (13) of the wheelchair (1). When the two C-shaped splice (31) are in the combined splicing state, the adhesive layer (331) and the flexible silicone pad (332) are arranged alternately on all the pressure blocks (33) on the two C-shaped splice (31). The baffle (52) on the protective cover (5) is located. The part is provided with an annular adjusting ring (56) that matches the size of the C-shaped groove (311) in the combined splicing state of the two C-shaped splicing pieces (31). The adjusting ring (56) can rotate within the C-shaped groove (311) in the combined splicing state of the two C-shaped splicing pieces (31). The part of the adjusting ring (56) facing the protective cover (5) is fixedly connected to the baffle (52). The part of the adjusting ring (56) facing the two C-shaped splicing pieces (31) is provided with four adjusting grooves (57) of the same size as the abutment (34), and the four adjusting grooves (57) are arranged at equal intervals.

2. The safety wheelchair device according to claim 1, characterized in that, An arc-shaped baffle (32) adapted to the size of the C-shaped splice (31) is fixedly provided on the rear side of the inner arc edge and the outer arc edge of each C-shaped splice (31). A flexible silicone pad (332) is provided on the rear side of each C-shaped splice (31) and the rear side of the arc-shaped baffle (32).

3. A safety wheelchair device according to claim 2, characterized in that, The strap assembly (4) includes a first shoulder strap (41), a second shoulder strap (42), a first waist belt (43), and a second waist belt (44). The front ends of the first shoulder strap (41) and the first waist belt (43) are fixedly connected to the arc-shaped baffle (32) on the outer arc edge of one of the C-shaped splicing pieces (31). The front ends of the second shoulder strap (42) and the second waist belt (44) are fixedly connected to the arc-shaped baffle (32) on the outer arc edge of another C-shaped splicing piece (31). The ends of the first shoulder strap (41) and the second shoulder strap (42) are fixedly connected to the upper end of the support plate (2). The ends of the first waist belt (43) and the second waist belt (44) are fixedly connected to the bottom sides of the support plate (2) after being covered by the brackets (11) on both sides of the backrest (13) of the wheelchair (1).

4. A safety wheelchair device according to claim 3, characterized in that, The first shoulder strap (41), the second shoulder strap (42), the first waist belt (43), and the second waist belt (44) are all adjustable straps.

5. A safety wheelchair device according to claim 1, characterized in that, A leg protection component (6) is provided at the bottom of the seat cushion (12) of the wheelchair (1). The leg protection component (6) includes an adjustment plate (61) and two baffles (62). The adjustment plate (61) is vertically arranged in the bottom area of ​​the seat cushion (12) of the wheelchair (1). A T-shaped slider (63) is provided at the top of the adjustment plate (61). A slide rail (64) is provided in the bottom area of ​​the seat cushion (12) of the wheelchair (1) for the T-shaped slider (63) to slide. The T-shaped slider (63) at the top of the adjustment plate (61) is located in the slide rail (64). Two baffles (62) are symmetrically arranged on both sides of the adjustment plate (61) at an inclined angle, and the inclination angle of the two baffles (62) is adapted to the flexion and extension angle of the patient's leg when the foot is placed on the footrest (14). The same side of the two baffles (62) is rotatably connected to the adjustment plate (61), and the same side of the two baffles (62) is provided with a snap-fit ​​groove (65). A snap-fit ​​plate (66) is provided on the adjustment plate (61) between the two baffles (62), and the bottom of the snap-fit ​​plate (66) is rotatably connected to the adjustment plate (61); located on one side of the bottom slide rail (64) of the wheelchair (1) seat cushion (12). A lever (67) is provided, the middle section of which is rotatably connected to the bottom of the seat cushion (12) of the wheelchair (1). The front end of the lever (67) passes through the side end of the slide rail (64) and extends to the T-shaped slider (63) at the top of the adjustment plate (61). The part of the lever (67) that passes through the slide rail (64) is provided with a thread. The contact part of the slide rail (64) with the lever (67) is provided with a matching threaded groove. A silicone pad is provided at the front end of the lever (67). The end of the lever (67) extends straight outward to the outside of the wheelchair (1) and then bends upward.

Images