A foot passive traction nursing device for bedridden patients

Abstract

A kind of passive traction nursing device for foot of bed patient, solve the problem that existing foot traction device cannot realize the dynamic adjustment of leg support height and angle, passive stretching direction is single, it is inconvenient to fold and store and occupies space;Including foldable support frame, support frame includes L-shaped placement plate, the inclination angle of placement plate can be adjusted;Placement plate is equipped with adjustable seat that can be adjusted along its inclination direction, adjustable seat is equipped with reciprocating traction seat;Traction seat is fixedly connected with traction frame, traction frame is fixedly connected with front pull rod and rear pull rod, and traction rope fixed to the foot of patient is fixedly connected on front pull rod and rear pull rod;The device can be dynamically adjusted in height and angle, can stretch foot in multiple directions, and it is convenient to fold and store.

Description

Technical Field

[0001] This utility model belongs to the field of medical and nursing device technology, and in particular relates to a passive traction nursing device for the feet of bedridden patients. Background Technology

[0002] In the field of long-term bedridden patient care, the prevention and rehabilitation of foot dysfunction is a key clinical need.

[0003] Most existing foot traction devices use fixed support structures, which cannot achieve dynamic adjustment of the leg support height and angle. For example, some devices only provide a single tilt angle (usually fixed at 30°), which is difficult to adapt to patients in different positions (such as a natural leg droop angle of 15°-20° in a semi-recumbent position and 45°-60° support in a sitting position), resulting in the patient's legs being suspended or excessively compressed, which can easily lead to pressure sores.

[0004] Conventional traction devices can only achieve passive stretching in one direction and cannot simulate the complex movements of dorsiflexion (toe lifting) and plantarflexion (toe pressing down) of the foot in the natural human gait. For example, traditional traction devices achieve dorsiflexion of the foot through constant-speed linear stretching, but lack the plantarflexion phase, leading to an increased risk of Achilles tendon contracture. At the same time, existing devices lack foot inversion and supination adjustment functions, and cannot meet the needs of correcting deformities such as foot drop and clubfoot. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model provides a passive foot traction nursing device for bedridden patients, which solves the problems of existing foot traction devices being unable to dynamically adjust the height and angle of leg support, having a single passive stretching direction, and being inconvenient to fold and store, thus occupying space.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a foldable support frame, the support frame including an L-shaped placement plate with an adjustable tilt angle; an adjustment seat on the placement plate that can be adjusted in position along its tilt direction, and a reciprocating traction seat on the adjustment seat; a traction frame fixedly connected to the traction seat, and a front pull rod and a rear pull rod fixedly connected to the traction frame, with traction ropes fixed to the patient's feet fixedly connected to both the front and rear pull rods.

[0007] Preferably, the traction frame includes a first link and a second link hinged together by a hinge shaft. The end of the first link away from the hinge shaft is provided with a first insertion hole, and the end of the second link away from the hinge shaft is provided with a second insertion hole. The traction seat is provided with a plurality of threaded holes evenly arranged along its length. The front pull rod is threadedly connected and fixed to the hinge shaft. The rear pull rod is threadedly connected to one of the threaded holes after passing through the first insertion hole. A positioning screw is provided in the second insertion hole, and the positioning screw is threadedly connected to the other threaded hole.

[0008] Preferably, there are two traction frames arranged symmetrically on the left and right sides.

[0009] Preferably, it also includes a positioning shoe fixed to the patient's foot, and the positioning shoe is connected and fixed to the traction rope through a connector.

[0010] Preferably, the placement plate includes a connecting plate and a support plate, and the connecting plate and the support plate are connected by a curved transition.

[0011] Preferably, the placement plate includes a high end and a low end. The low end is hinged to a base, the high end is hinged to a first folding plate, and the end of the base away from the placement plate is hinged to a second folding plate. The first folding plate is threaded with a locking bolt, and the second folding plate is provided with a vertical hole. The locking bolt passes through the vertical hole and is fixedly connected to an operating knob.

[0012] Preferably, the adjusting seat includes card holders with the same structure and arranged opposite each other. The card holders are provided with card slots that can be inserted into the side of the placement plate. One card holder is provided with at least one through hole, and the other card holder is provided with threaded positioning holes that correspond one-to-one with the through holes. A threaded rod is inserted into the through hole and fixed in cooperation with the threaded positioning hole.

[0013] Preferably, a lead screw is rotatably connected to one of the card holders, and a stepper motor fixedly connected to the lead screw is fixedly connected to the lead screw and fixedly connected to the card holder; a detachable slide rod is fixedly connected to the other card holder, the slide rod is slidably connected to the traction seat, and the lead screw is threadedly connected to the traction seat.

[0014] Preferably, the placement plate has multiple massage protrusions.

[0015] Preferably, the slot is provided with a rubber pad inside.

[0016] Compared with the prior art, the beneficial effects of this utility model are: 1. The tilt angle of the placement plate can be adjusted via the first folding plate, the second folding plate, and the locking bolts, precisely matching the natural physiological curve of the legs of patients in different positions. This adapts to various positions such as bedridden and semi-recumbent, avoiding the risk of pressure sores caused by traditional fixed angles. The double-seat adjustment base, combined with the threaded rod locking mechanism, allows the traction actuator to be fixed at any position along the tilt direction of the support plate, adapting to the foot traction point needs of patients of different heights and improving treatment accuracy.

[0017] 2. The stepper motor drives the lead screw and nut mechanism to achieve precise control of the frequency and stroke of the traction seat's reciprocating motion, accurately reproduce the dorsiflexion-plantar flexion movement trajectory of the foot, promote the muscle pump effect of the lower limbs, prevent deep vein thrombosis, and meet the needs of different rehabilitation stages.

[0018] 3. The curved surface of the placement board and the massage protrusions reduce discomfort for patients during prolonged use and improve the nursing experience. When performing foot traction on patients, the legs can be massaged through the massage protrusions to improve lower extremity venous thrombosis.

[0019] 4. The foldable support frame is easy to store and move, making it suitable for home care and medical institutions. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the structure of this utility model in use.

[0021] Figure 2 This is a three-dimensional view of the overall structure of this utility model.

[0022] Figure 3 This is a schematic diagram of the overall structure of the adjustment seat in this utility model.

[0023] Figure 4 This is a schematic diagram of the overall structure of the traction frame in this utility model.

[0024] Figure 5 This is a schematic diagram of how two traction frames pull the positioning shoe in this utility model.

[0025] In the diagram: 1-Support frame, 2-Placement plate, 201-Connecting plate, 202-Support plate, 3-Adjusting seat, 301-Card seat, 302-Card slot, 303-Screw, 304-Stepper motor, 305-Threaded rod, 4-Traction seat, 5-Traction frame, 6-Front pull rod, 7-Rear pull rod, 8-Traction rope, 9-Hinge shaft, 10-First connecting rod, 11-Second connecting rod, 12-First insertion hole, 13-Second insertion hole, 14-Threaded hole, 15-Positioning screw, 16-Positioning shoe, 17-Base, 18-First folding plate, 19-Second folding plate, 20-Locking bolt, 21-Vertical hole, 22-Massage protrusion. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0027] This utility model provides a passive traction nursing device for the feet of bedridden patients, such as... Figure 1-5As shown in the attached diagram (with reference to the label), its core lies in achieving passive traction on the feet of bedridden patients through an adjustable mechanical structure, while simultaneously considering comfort and ease of operation. The main body of the device includes a foldable support frame 1, which is composed of an L-shaped placement plate 2. The placement plate 2 adopts a structure in which the connecting plate 201 and the support plate 202 are connected by an arc surface 203, forming an ergonomic support surface. During use, the leg arch is placed at the arc surface 203. The high end and low end of the placement plate 2 are respectively hinged to the base 17 and the first folding plate 18. The other end of the base 17 is hinged to the second folding plate 19. Through the locking bolt 20 passing through the vertical hole 21 of the second folding plate 19 and in conjunction with the operating knob, the tilt angle of the placement plate 2 can be infinitely adjusted (0-60° adjustable) to adapt to the positional needs of different patients.

[0028] The adjusting seat 3 consists of two opposing retainers 301. A groove 302 on the inner side of each retainer 301 engages with the side of the placement plate 2. The inner wall of the groove 302 is equipped with a rubber pad (not labeled in the figure) to prevent the adjusting seat 3 from sliding due to friction, while also avoiding damage to the surface of the placement plate 2. The two retainers 301 are connected by a threaded rod 305. The threaded rod 305 passes through a through hole in one retainer and engages with a threaded positioning hole in the other retainer. Rotating the threaded rod 305 adjusts the spacing between the retainers, thus locking the adjusting seat 3 in the tilt direction of the placement plate 2. A stepper motor 304 is fixed to one retainer 301, with its output shaft coaxially connected to a lead screw 303, which is threadedly engaged with the traction seat 4. A sliding rod is fixed to the other retainer, and the sliding rod is slidably connected to the traction seat 4. When the stepper motor 304 drives the lead screw 303 to rotate, the traction seat 4 can reciprocate along the sliding rod (travel range 10-15cm), achieving dynamic adjustment of the traction force.

[0029] Two traction frames 5 are symmetrically arranged on the left and right sides, with the patient's foot positioned between the two traction frames 5 to ensure forward or backward traction force. Each traction frame 5 consists of a first connecting rod 10 and a second connecting rod 11 hinged together by a hinge shaft 9. The first connecting rod 10 has a first insertion hole 12 at its end, and the second connecting rod 11 has a second insertion hole 13 at its end. Multiple threaded holes 14 (spaced 1.5-3cm apart) are evenly distributed along the length of the traction seat 4. During installation, the front pull rod 6 is threadedly connected and fixed to the hinge shaft 9, and the rear pull rod 7 passes through the first insertion hole 12 and is threadedly connected to any one of the threaded holes 14. The positioning screw 15 in the second insertion hole 13 is fixed to another threaded hole 14. By selecting different threaded holes, the unfolding angle of the traction frame 5 can be adjusted (adjustment range 30-90°) to adapt to different patients' foot sizes. In addition, the traction direction can also be adjusted. One end of the traction rope 8 is fixed to the front pull rod 6 and the rear pull rod 7, and the other end is connected to the positioning shoe 16 through a connector (such as a buckle). The positioning shoe 16 is made of medical-grade breathable material, with anti-slip patterns on the sole and elastic straps on the inside of the shoe to ensure that the patient's foot is firmly fixed, similar to dance shoes.

[0030] The support plate 202 of the placement plate 2 has multiple massage protrusions 22 (hemispherical, 3mm high) evenly distributed on its surface. The material is medical silicone. When the patient's foot is pulled, the massage protrusions 22 can physically massage the patient's leg to promote blood circulation.

[0031] The folding structure of the support frame 1 is achieved through a hinge shaft: when storage is required, the locking bolt 20 is loosened, and the first folding plate 18, the second folding plate 19 and the base 17 are folded towards the placement plate 2, which can reduce the overall volume and facilitate storage and transportation.

[0032] Specifically, during routine foot traction, the support frame 1 is placed at the foot of the bed. The locking bolt 20 is loosened by operating the knob, and the tilt angle of the placement plate 2 is adjusted to 30° (the angle between the support plate 202 and the horizontal plane). The bolts are then tightened to secure it. The adjusting seat 3 is slid along the placement plate 2 to the middle position, and the spacing between the seats is locked by the threaded rod 305.

[0033] Place the positioning shoe 16 on the patient and secure the foot with Velcro straps. Fasten the connector of the traction rope 8 to the positioning shoe 16, ensuring the traction rope hangs naturally without tangling. Adjust the distance between the two traction frames 5 and the angle of the first connecting rod 10 according to the size of the patient's foot. Insert the rear pull rod 7 into the threaded hole 14 and tighten the positioning screw 15 to secure it.

[0034] The stepper motor 304 is powered on, and the traction frequency is set to 15 times / minute via the controller. The stroke is adjusted according to the range of dorsiflexion-plantarflexion movements of the patient's foot. The motor drives the lead screw 303 to rotate reciprocally, and the traction seat 4 moves back and forth along the slide bar. The traction frame 5 drives the traction rope 8 to apply periodic traction force. That is, when the traction seat 4 moves upward, the traction rope 8 between the front pull rod 6 and the positioning shoe 16 is tightened, and the patient's foot performs dorsiflexion movements. When the traction seat 4 moves downward, the traction rope 8 between the rear pull rod 7 and the positioning shoe 7 begins to tighten, and the patient's foot performs plantarflexion movements. In addition, when using one traction frame 5, the patient's foot can also be pulled outward or inward to achieve eversion and inversion of the patient's foot. During the treatment, the patient's leg can contact the massage protrusions 22 of the support plate 202 to achieve simultaneous traction and massage.

[0035] After treatment, loosen the locking bolt 20, lay the placement plate 2 flat, fold the first folding plate 18, the second folding plate 19 and the base 17, and put them into the special storage bag.

Claims

1. A device for passive traction care of the feet of bedridden patients, comprising a foldable support frame (1), characterized in that, The support frame (1) includes an L-shaped placement plate (2), the tilt angle of which is adjustable; the placement plate (2) is provided with an adjustment seat (3) whose position can be adjusted along its tilt direction, and the adjustment seat (3) is provided with a traction seat (4) that can reciprocate; a traction frame (5) is fixedly connected to the traction seat (4), and a front pull rod (6) and a rear pull rod (7) are fixedly connected to the traction frame (5), and a traction rope (8) fixed to the patient's foot is fixedly connected to both the front pull rod (6) and the rear pull rod (7).

2. A foot passive traction care device for bedridden patients as claimed in claim 1 wherein, The traction frame (5) includes a first link (10) and a second link (11) hinged together by a hinge shaft (9). The first link (10) has a first insertion hole (12) at the end away from the hinge shaft (9), and the second link (11) has a second insertion hole (13) at the end away from the hinge shaft (9). The traction seat (4) has a plurality of threaded holes (14) evenly arranged along its length. The front pull rod (6) is threadedly connected to the hinge shaft (9). The rear pull rod (7) is threadedly connected to one of the threaded holes (14) after passing through the first insertion hole (12). The second insertion hole (13) has a positioning screw (15) and is threadedly connected to the other threaded hole (14).

3. A foot passive traction care device for bedridden patients according to claim 2, characterized in that, Two traction frames (5) are provided symmetrically on the left and right.

4. A passive traction nursing device for the feet of bedridden patients according to claim 1, characterized in that, It also includes a positioning shoe (16) fixed to the patient's foot, which is connected and fixed to the traction rope (8) by a connector.

5. A foot passive traction care device for bedridden patients as claimed in claim 1 wherein, The placement plate (2) includes a connecting plate (201) and a support plate (202), and the connecting plate (201) and the support plate (202) are connected by an arc surface (203).

6. A foot passive traction care device for bedridden patients as claimed in claim 1 wherein, The placement plate (2) includes a high end and a low end. The low end is hinged to a base (17), and the high end is hinged to a first folding plate (18). The end of the base (17) away from the placement plate (2) is hinged to a second folding plate (19). The first folding plate (18) is threaded with a locking bolt (20). The second folding plate is provided with a vertical hole (21). The locking bolt (20) passes through the vertical hole (21) and is fixedly connected to an operating knob.

7. A passive traction nursing device for the feet of bedridden patients according to claim 1, characterized in that, The adjusting seat (3) includes a card holder (301) with the same structure and arranged opposite to each other. The card holder (301) is provided with a card slot (302) that can be inserted into the side of the placement plate. One card holder (301) is provided with at least one through hole, and the other card holder (301) is provided with a threaded positioning hole that corresponds to the through hole. A threaded rod (305) is inserted into the through hole and fixed in cooperation with the threaded positioning hole.

8. A foot passive traction care device for bedridden patients as claimed in claim 1 wherein, One of the card holders (301) is rotatably connected to a lead screw (303), and a stepper motor (304) is fixedly connected to the lead screw (303) and fixedly connected to the card holder (301). The other card holder (301) is fixedly connected to a detachable slide rod, which is slidably connected to the traction seat (4). The lead screw (303) is threadedly connected to the traction seat (4).

9. A foot passive traction care device for bedridden patients as claimed in claim 1 wherein, The placement plate (2) is provided with multiple massage protrusions (22).

10. A passive foot traction nursing device for bedridden patients according to claim 7, characterized in that, The slot (302) is equipped with a rubber pad inside.

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