Support frame for preventing venous thrombosis

Abstract

The utility model provides a kind of support frame for preventing venous thrombosis, including support frame pedestal and adjusting lever, fixed bearing seat is installed in the upper end right side of support frame pedestal, rotating shaft is installed between two fixed bearing seats, two fixed rings are fixed outside rotating shaft, two fixed rings upper left end are obliquely fixed with support plate, this design solves the original neurology postoperative support frame for preventing venous thrombosis, when adjusting inclination angle, it needs manual manual screwing adjusting turntable, it is not enough convenient, in addition, it is generally supported by support block to support plate, it is easy to make support plate wobble phenomenon, affect the problem of patient lower limb placement stability, the utility model uses button control electric drive type lifting structure, can realize the quick inclination adjustment of support plate, cooperate with the fitting limit of air bag, elastic band and magic tape, can guarantee the fitting and stability of patient lower limb placement.

Description

Technical Field

[0001] This utility model is a support frame for preventing venous thrombosis, belonging to the field of medical device technology. Background Technology

[0002] Neurological patients often suffer from lower limb dysfunction due to central nervous system damage, requiring prolonged bed rest. Prolonged bed rest can slow venous blood flow and cause blood stasis in the lower limbs, greatly increasing the risk of deep vein thrombosis (DVT). If a thrombus breaks off, it can trigger life-threatening complications such as pulmonary embolism, seriously threatening the patient's life.

[0003] Chinese patent CN213490020U proposes a support frame for preventing venous thrombosis after neurological surgery. A rotating adjustment dial drives a screw to rotate. The screw's threads engage, and bearings share the rotation, causing the support block to rise and fall, thus adjusting the tilt angle of the support plate. However, this support frame requires manual turning of the adjustment dial to adjust the tilt angle, which is inconvenient. Furthermore, relying solely on the support block to tilt the support plate is generally ineffective, easily causing the support plate to wobble and affecting the stability of the patient's lower limbs. Therefore, there is an urgent need for a support frame for preventing venous thrombosis to address these problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this invention is to provide a support frame for preventing venous thrombosis, thereby solving the problems mentioned in the background section. This invention adopts a button-controlled electrically driven lifting structure, which enables rapid tilt adjustment of the support plate. Combined with the fitting and limiting of the airbag, elastic band, and Velcro, it can ensure the fit and stability of the patient's lower limbs.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a support frame for preventing venous thrombosis, comprising a support frame base and an adjusting rod. Fixed bearing seats are installed at the front and rear positions of the upper right side of the support frame base. A rotating shaft is installed between the two fixed bearing seats. Two fixing rings are fixed to the outside of the rotating shaft. A support plate is obliquely fixed to the upper left end of the two fixing rings. A sponge groove is adhered to the upper end of the support plate. Strip-shaped airbags are embedded in the front and rear sides of the sponge groove. Elastic bands are fixed to the left and right positions of the front end of the support plate. Velcro hooks are fixed to the left and right positions of the rear end of the support plate. A transmission box is fixed to the left side of the upper end of the support frame base. A servo motor is installed in the middle of the upper end of the transmission box. The shaft end of the servo motor passes through the transmission box and connects to a first bevel gear. The transmission box contains two ball bearings, with a transmission rod running through them. A third bevel gear is mounted at both the front and rear ends of the transmission rod. A strip-shaped shell is fixed to the front and rear sides of the upper end of the transmission box. An adjusting screw is longitudinally mounted within the two strip-shaped shells via bearings. A fourth bevel gear is mounted at the lower end of each of the two adjusting screws. A transmission nut is threaded onto the outside of each adjusting screw. A stroke groove is formed on the outer side of each of the two strip-shaped shells. Two adjusting rods are provided, each passing through one of the two stroke grooves and fixed to one of the two transmission nuts. An adjusting plate is horizontally fixed to the upper end of each of the two adjusting rods. Two sets of small bearing seats are mounted on the front and rear sides of the upper end of the adjusting plate. A one-way wheel is mounted between the two sets of small bearing seats, and both one-way wheels slide in contact with the lower end surface of the support plate.

[0006] Furthermore, both movable ends of the elastic band are sewn with hook and loop fasteners, and the hook and loop fasteners are respectively bonded to the hook and loop fasteners.

[0007] Furthermore, a small air pump is placed on the upper end of the support frame base. The air supply end of the small air pump is connected to two strip-shaped airbags through a pipe. A button is installed on the left side of the front end of the support plate. The small air pump, the button, and the servo motor are connected to an external plug-in board through wires.

[0008] Furthermore, the buttons are divided into a forward switch, a stop switch, and a reverse switch from left to right.

[0009] Furthermore, a second bevel gear is fixed in the middle of the outer side of the transmission rod, and the second bevel gear meshes with the first bevel gear for transmission.

[0010] Furthermore, the two fourth bevel gears mesh with the two third bevel gears respectively for transmission.

[0011] The beneficial effects of this utility model are as follows: This utility model provides a support frame for preventing venous thrombosis. Because it incorporates a transmission box, servo motor, first bevel gear, transmission rod, second bevel gear, third bevel gear, fourth bevel gear, adjusting screw, transmission nut, adjusting rod, adjusting plate, small bearing seat, and one-way wheel, its structure is reasonable. It adopts a button-controlled electric drive lifting structure, enabling rapid tilt adjustment of the support plate. Furthermore, the combination of sponge groove, strip-shaped airbag, elastic band, Velcro nap, Velcro hook, and small air pump for contact and positioning ensures a comfortable and stable fit for the patient's lower limbs, making it highly practical. Attached Figure Description

[0012] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the structure of a support frame for preventing venous thrombosis according to the present invention; Figure 2 This is an enlarged structural diagram of the hook and loop fastener surface of a support frame for preventing venous thrombosis according to this utility model; Figure 3 This is an enlarged schematic diagram of the fixing ring structure of a support frame for preventing venous thrombosis according to the present invention; Figure 4 This is a schematic diagram of the overall structure of the transmission box of the support frame for preventing venous thrombosis according to this utility model; Figure 5 This is a schematic diagram of the adjusting screw structure of a support frame for preventing venous thrombosis according to the present invention; Figure 6 This is a schematic diagram of a one-way wheel structure for a support frame for preventing venous thrombosis according to the present invention.

[0013] In the diagram: 1-Support frame base, 2-Fixed bearing seat, 3-Rotating shaft, 4-Fixing ring, 5-Support plate, 6-Sponge groove, 7-Strip-shaped airbag, 8-Elastic band, 9-Hook and loop fastener, 10-Hook and loop hook fastener, 11-Small air pump, 12-Button, 13-Transmission box, 14-Servo motor, 15-First bevel gear, 16-Transmission rod, 17-Second bevel gear, 18-Third bevel gear, 19-Fourth bevel gear, 20-Adjusting screw, 21-Transmission nut, 22-Strip-shaped shell, 23-Stroke groove, 24-Adjusting rod, 25-Adjusting plate, 26-Small bearing seat, 27-One-way wheel. Detailed Implementation

[0014] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0015] Please see Figures 1-6This utility model provides a technical solution: a support frame for preventing venous thrombosis, including a support frame base 1 and an adjusting rod 24. Fixed bearing seats 2 are installed at the front and rear positions of the upper right side of the support frame base 1. A rotating shaft 3 is installed between the two fixed bearing seats 2. Two fixing rings 4 are fixed to the outside of the rotating shaft 3. A support plate 5 is obliquely fixed to the upper left end of the two fixing rings 4. A sponge groove 6 is glued to the upper end of the support plate 5. Strip-shaped airbags 7 are embedded in the front and rear sides of the sponge groove 6. Elastic bands 8 are fixed to the left and right positions of the front end of the support plate 5. Velcro hooks 10 are fixed to the left and right positions of the rear end of the support plate 5. A transmission box 13 is fixed to the upper left side of the support frame base 1. A servo motor 14 is installed in the middle of the upper end of the transmission box 13. The shaft end of the servo motor 14 passes through the transmission box 13 and connects to a first bevel gear 15. Two ball bearings are installed inside the transmission box 13, and a transmission rod 16 is installed through the two ball bearings. A third bevel gear 18 is installed at both the front and rear ends of the transmission rod 16. Each support plate 5 is fixed with a strip-shaped shell 22. An adjusting screw 20 is longitudinally installed inside the two shells 22 via bearings. A fourth bevel gear 19 is installed at the lower end of each adjusting screw 20. A transmission nut 21 is threaded onto the outside of each adjusting screw 20. A stroke groove 23 is provided on the outer side of each shell 22. Two adjusting rods 24 are provided, each passing through a stroke groove 23 and fixed to a transmission nut 21. An adjusting plate 25 is horizontally fixed to the upper end of each adjusting rod 24. Two sets of small bearing seats 26 are installed on the front and rear sides of the upper end of the adjusting plate 25. One-way wheels 27 are installed between the two sets of small bearing seats 26, and both one-way wheels 27 slide against the lower end face of the support plate 5. This design solves the problem in the original neurological postoperative venous thrombosis prevention support frame where adjusting the tilt angle requires manual turning of the adjusting dial, which is inconvenient. Furthermore, relying solely on the support block for tilting the support plate is generally ineffective, easily causing the support plate to wobble and affecting the stability of the patient's lower limbs.

[0016] As the first embodiment of this utility model: the movable ends of the two elastic bands 8 are sewn with hook and loop fasteners 9, and the two hook and loop fasteners 9 are respectively glued to the two hook and loop fasteners 10. By adding the two elastic bands 8, the two hook and loop fasteners 9 and the two hook and loop fasteners 10, it is convenient to limit and fix the lower limbs of different patients. A small air pump 11 is placed on the upper end of the support frame base 1. The air supply end of the small air pump 11 is connected to the two strip-shaped air bags 7 through the pipe. A button 12 is installed on the left side of the front end of the support plate 5. The small air pump 11, the button 12 and the servo motor 14 are connected to the external plug-in through the wire. The button 12 is divided into a forward switch, a stop switch and a reverse switch from left to right. The small air pump 11, the button 12 and the servo motor 14 are all existing known devices, and their control principles will not be described in detail.

[0017] A second bevel gear 17 is fixed to the outside of the transmission rod 16. The second bevel gear 17 meshes with the first bevel gear 15 for transmission. By adding the second bevel gear 17 to mesh with the first bevel gear 15, the rotation of the first bevel gear 15 can drive the second bevel gear 17 and the transmission rod 16 to rotate. Two fourth bevel gears 19 mesh with two third bevel gears 18 respectively. When the transmission rod 16 drives the two third bevel gears 18 to rotate, the two fourth bevel gears 19 can be adjusted to mesh and rotate.

[0018] As a second embodiment of this utility model: Connect the wire to the external plug plate, place the patient's lower limb in the sponge groove 6, attach the two Velcro loops 9 to the two Velcro hooks 10, start the small air pump 11 to supply air to the two strip-shaped airbags 7, forcing the two strip-shaped airbags 7 to apply slight pressure to the patient's lower limb, then click the forward switch, the servo motor 14 is powered on and drives the first bevel gear 15 to rotate, the second bevel gear 17 meshes with it and rotates in the opposite direction, and drives the transmission rod 16 and the two third bevel gears 18 to rotate synchronously in the opposite direction, the two fourth bevel gears 19 mesh with the two third bevel gears 18 to rotate in the forward direction, the two fourth bevel gears 19 will move the two transmission nuts 21 upward, during this process the two adjusting rods 24 move upward through the two stroke grooves 23, which can force the adjusting plate 25 and the two one-way wheels 27 to move upward, which can push the support plate 5 upward to swing clockwise around the rotation axis 3 until the support plate 5 tilts and adjusts to meet the rehabilitation needs of the patient's lower limb to prevent venous thrombosis.

[0019] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0020] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A support frame for preventing venous thrombosis, comprising a support frame base (1) and an adjusting rod (24), characterized in that: Fixed bearing seats (2) are installed on the front and back positions of the upper right side of the support frame base (1). A rotating shaft (3) is installed between the two fixed bearing seats (2). Two fixed rings (4) are fixed to the outside of the rotating shaft (3). A support plate (5) is fixed at the upper left end of the two fixed rings (4). A sponge groove (6) is glued to the upper end of the support plate (5). Strip-shaped airbags (7) are embedded in the front and back sides of the sponge groove (6). Elastic bands (8) are fixed to the left and right positions of the front end of the support plate (5). Velcro hooks (10) are fixed to the left and right positions of the rear end of the support plate (5). A transmission box (13) is fixed to the left side of the upper end of the support frame base (1). A servo motor (14) is installed in the middle of the upper end of the transmission box (13). The shaft end of the servo motor (14) passes through the transmission box (13) and is connected to the first bevel gear (15). Two ball bearings are installed in the transmission box (13), and a transmission rod (16) is installed through the two ball bearings. The transmission rod (16) is equipped with a third bevel gear (18) at both the front and rear ends. The transmission box (13) is fixed with strip shells (22) on both the front and rear sides of the upper end. An adjusting screw (20) is longitudinally installed in the two strip shells (22) through bearings. A fourth bevel gear (19) is installed at the lower end of the two adjusting screws (20). A transmission nut (21) is threaded onto the outside of the two adjusting screws (20). A stroke groove (23) is opened on the outside of the two strip shells (22). There are two adjusting rods (24). The two adjusting rods (24) pass through two stroke grooves (23) and are fixed to two transmission nuts (21). The upper ends of the two adjusting rods (24) are horizontally fixed with adjusting plates (25). Two sets of small bearing seats (26) are installed on the front and rear sides of the upper end of the adjusting plate (25). One-way wheels (27) are installed between the two sets of small bearing seats (26), and the two one-way wheels (27) slide against the lower end surface of the support plate (5).

2. The support frame for preventing venous thrombosis according to claim 1, characterized in that: Both elastic bands (8) have hook and loop fasteners (9) sewn to their movable ends, and the hook and loop fasteners (9) are respectively attached to the hook and loop fasteners (10).

3. The support frame for preventing venous thrombosis according to claim 1, characterized in that: A small air pump (11) is placed on the upper end of the support frame base (1). The air supply end of the small air pump (11) is connected to two strip-shaped air bags (7) through a pipe. A button (12) is installed on the left side of the front end of the support plate (5). The small air pump (11), the button (12) and the servo motor (14) are connected to an external plug-in board through wires.

4. A support frame for preventing venous thrombosis according to claim 3, characterized in that: The button (12) is divided into a forward switch, a stop switch and a reverse switch from left to right.

5. A support frame for preventing venous thrombosis according to claim 1, characterized in that: A second bevel gear (17) is fixed in the middle of the outside of the transmission rod (16), and the second bevel gear (17) meshes with the first bevel gear (15) for transmission.

6. A support frame for preventing venous thrombosis according to claim 1, characterized in that: The two fourth bevel gears (19) mesh with the two third bevel gears (18) respectively.

Images