Wearable device for preventing lower limb vein thrombosis

Abstract

The invention discloses a wearable device for preventing formation of lower limb venous thrombosis, relates to the technical field of venous thrombosis protection equipment, and provides the following scheme that the wearable device comprises a thigh clamping sleeve, and a shank clamping sleeve is arranged below the thigh clamping sleeve; knee joint driving parts are fixedly connected to the right side surfaces of the thigh clamping sleeve and the shank clamping sleeve, and 2-3 vein restraint straps are arranged on the rear side surface of the shank clamping sleeve. The upper clamping sleeve and the lower clamping sleeve are arranged to wrap the thigh and the shank, and the knee joint driving component is used for driving the two clamping sleeves to rotate mutually in an electric and gear transmission mode, so that bending between the thigh and the shank is assisted, blood circulation of the leg is assisted, and venous thrombosis is prevented; in addition, the vein restraint strap is arranged on the shank part, the binding force of the shank part is gradually reduced from bottom to top in the mode of expanding the strip-shaped air bag, and therefore flowing of blood in veins is accelerated.

Description

Technical Field

[0001] The present invention relates to the technical field of venous thrombosis protection equipment, and in particular to a wearable device for preventing lower limb venous thrombosis. Background Art

[0002] Deep vein thrombosis, also known as thrombophlebitis, is a common complication in neurosurgery. It refers to the accumulation and coagulation of blood in the deep vein cavity, which blocks the venous lumen, resulting in obstruction of venous return, causing symptoms such as distal venous hypertension, limb swelling, pain, and superficial vein dilation. The disease is caused by the combined effects of venous blood stasis, venous wall damage, and hypercoagulable state of blood. It often occurs in patients after surgery, in coma, long-term bed rest in vegetative state, and patients with limited limb movement due to paralysis.

[0003] Generally speaking, the treatment for preventing venous thrombosis is divided into non-surgical treatment, interventional treatment and surgical treatment. Non-surgical treatment mainly involves appropriate exercise, raising the affected limb, or using elastic bandages or elastic stockings to restrain the lower limbs. However, this type of treatment and prevention method is not only less effective, but also mainly depends on the patient's self-awareness and requires the patient to take the initiative to prevent it. Therefore, those skilled in the art hereby propose a wearable device for preventing lower limb venous thrombosis. Summary of the invention

[0004] In view of the above background technology, the current prevention of lower limb venous thrombosis mainly relies on patients' self-exercise and wearing elastic stockings for prevention, which has the defect of poor effect. Therefore, a technical solution of a wearable device for preventing lower limb venous thrombosis is provided.

[0005] It includes a thigh jacket, a calf jacket is arranged below the thigh jacket, a knee joint driving component is fixedly connected to the right side surfaces of the thigh jacket and the calf jacket, and 2-3 vein restraint belts are arranged on the rear side surface of the calf jacket;

[0006] The thigh jacket comprises a front thigh splint, two fastening straps fixed to the rear side of the right surface of the front thigh splint, and a fixed shaft is fixedly connected to the bottom position of the right surface of the front thigh splint;

[0007] The calf jacket includes a calf front splint and a fixed cylinder fixed to the top position of the right side surface of the calf front splint;

[0008] The knee joint driving component includes a left side plate and a right side plate, the top and bottom of the side of the left side plate and the right side plate close to each other are fixedly connected with a partition plate, the side surface of the right side plate close to the left side plate is rotatably connected with two mutually meshing half-toothed gears, and the ends of the half-toothed gears away from each other are fixedly connected with a pulling arm located outside the left side plate and the right side plate;

[0009] A driven gear is fixedly connected to a side of the top half-tooth gear away from the right side plate, and a servo drive motor is installed on a side of the left side plate away from the right side plate, and the output shaft of the servo drive motor passes through between the left side plate and the right side plate and is connected to a driving gear, and the driven gear and the servo drive motor are meshed and transmitted with each other; specifically, after the patient wears the calf front splint and the thigh front splint, the servo drive motor will drive the output shaft to rotate in a reciprocating manner according to the bending time of the patient's knee joint, and after the driving gear rotates, it drives the driven gear to rotate forward or reverse, thereby driving the top half-tooth gear to rotate forward or reverse. Since the bottom half-tooth gear is meshed with the top half-tooth gear, when the top half-tooth gear rotates forward, the bottom half-tooth gear will reverse, thereby driving the upper and lower traction arms connected to the calf front splint and the thigh front splint to expand or close with each other, thereby assisting the knee joint to bend.

[0010] The venous restraint belt includes a canvas belt, a strip of air bag fixed on the inner surface of the canvas belt by adhesive, and a servo air pump fixed on the outer surface of the canvas belt, and the air supply end of the servo air pump is connected to an air tube that penetrates into the inner cavity of the strip of air bag through a joint; specifically, the front calf splint is inserted into the strip through the groove on the rear end surface and worn on the calf, and the front thigh splint is inserted into the strip through the groove on the rear end surface and worn on the thigh; after the fastening belt and the canvas belt are bound in turn, according to the program set by the controller, the external air is drawn into the air tube by the servo air pump, and the air is then transported to the inside of the strip of air bag in turn by the air tube, forcing the strip of air bag to expand while squeezing the calf, and as the strip of air bag expands from top to bottom, the venous blood pressure circulating back from the toes is accelerated to flow upward due to the pressure.

[0011] In the above-mentioned technical solution of the wearable device for preventing lower limb venous thrombosis, preferably: the left and right surfaces of the front thigh splint are provided with a plurality of ventilation holes, and the rear end surface of the front thigh splint is provided with a strip-shaped groove running through from top to bottom for the calf to be placed.

[0012] In the above-mentioned technical solution of the wearable device for preventing lower limb venous thrombosis, preferably: the end of the fixed axis away from the front thigh splint is fixedly connected to the side wall of the top traction arm, and the end of the fixed cylinder away from the front calf splint is fixedly connected to the side wall of the bottom traction arm.

[0013] In the above-mentioned technical solution of the wearable device for preventing lower limb venous thrombosis, preferably: the left and right surfaces of the front calf splint are both provided with a plurality of ventilation holes, and the rear end surface of the front calf splint is provided with a strip-shaped groove running through from top to bottom for placing the calf calf.

[0014] In the above-mentioned technical solution of the wearable device for preventing lower limb venous thrombosis, preferably: one end of the fastening belt is fixedly connected to the right side of the rear end surface of the front thigh splint, a Velcro is sewn on the inner surface of the fastening belt, and Velcro is sewn on the front surface and left side surface of the front thigh splint.

[0015] In the above-mentioned technical solution of the wearable device for preventing lower limb venous thrombosis, preferably: the left and right side surfaces of the partition are respectively fixedly connected to the side where the left plate and the right plate are close to each other, and the partition forms a space between the left plate and the right plate.

[0016] In the above-mentioned technical solution of the wearable device for preventing lower limb venous thrombosis, preferably: a through hole for the servo drive motor output shaft to pass through is opened inside the left side plate, and a bearing adapted to the servo drive motor output shaft is arranged inside the through hole.

[0017] In the above-mentioned technical solution of the wearable device for preventing lower limb venous thrombosis, preferably: a rotating shaft is fixedly connected to the upper and lower positions of the side surface of the right side plate close to the left side plate, and the half-tooth gear is rotatably arranged on the outer ring surface of the rotating shaft.

[0018] In the above-mentioned technical solution of the wearable device for preventing lower limb venous thrombosis, preferably: a connecting plate is fixedly connected to the outer surface of the canvas belt, the outer shell of the servo air pump is fixed on the outer wall of the connecting plate, the interior of the strip airbag and the canvas belt are provided with through holes for the air supply pipe to pass through, and the edges of the inner surface of the strip airbag are chamfered with arcs.

[0019] In the above-mentioned technical solution of the wearable device for preventing lower limb venous thrombosis, preferably: one end of the canvas strap is fixedly connected to the right side of the rear end surface of the anterior calf splint, a Velcro is sewn on the inner surface of the canvas strap, and the front surface and left side surface of the anterior calf splint are sewn with matching Velcro.

[0020] It can be seen from the above technical solutions that the present invention provides a wearable device for preventing lower extremity venous thrombosis. Compared with the prior art, the present invention has the following beneficial effects:

[0021] In the technical solution of the present invention, two upper and lower sleeves are provided to wrap the thigh and calf parts, and a knee joint driving component between the two sleeves is used to drive the two sleeves to rotate relative to each other by electric and gear transmission, thereby assisting the bending between the thigh and the calf, making the knee joint bending movement lighter, helping the blood circulation of the legs, and preventing the formation of venous thrombosis; in addition, a venous restraint belt is provided in the calf part, and the restraining force of the calf part is gradually reduced from bottom to top by inflating a strip air bag, thereby accelerating the flow of blood in the vein. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces and describes the drawings required for use in the embodiments of the present invention or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 It is a schematic diagram of a wearable lower limb anti-thrombosis mechanism;

[0024] Figure 2 A schematic diagram of a thigh jacket;

[0025] Figure 3 is a schematic diagram of the driving components of the knee joint;

[0026] Figure 4 A schematic diagram of a calf jacket;

[0027] Figure 5 Schematic diagram of a venous restraint band.

[0028] Attached Figure 1 - Attachment Figure 5 The corresponding relationship of the parts is as follows:

[0029] 1. Thigh sleeve; 11. Front thigh splint; 12. Fastening belt; 13. Fixed shaft; 2. Calf sleeve; 21. Front calf splint; 22. Fixed cylinder; 3. Knee joint drive component; 31. Left side plate; 32. Servo drive motor; 33. Drive gear; 34. Partition; 35. Pulling arm; 36. Right side plate; 37. Half-tooth gear; 38. Driven gear; 4. Venous restraint belt; 41. Canvas strap; 42. Connecting plate; 43. Servo air pump; 44. Trachea; 45. Strip airbag. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] In order to more clearly explain and illustrate the technical solution and implementation of the present invention, preferred specific embodiments for implementing the technical solution of the present invention are introduced below.

[0032] Embodiment: A preferred technical solution for a wearable device for preventing lower extremity venous thrombosis:

[0033] Refer to the instruction manual Figure 1 As shown: it includes a thigh jacket 1, a calf jacket 2 is arranged below the thigh jacket 1, a knee joint driving component 3 is fixedly connected to the right side surface of the thigh jacket 1 and the calf jacket 2, and 2-3 vein restraint belts 4 are arranged on the rear side surface of the calf jacket 2;

[0034] Refer to the instruction manual Figure 2 As shown: the thigh jacket 1 includes a front thigh splint 11, two fastening straps 12 fixed to the rear side of the right surface of the front thigh splint 11, and a fixed shaft 13 is fixedly connected to the bottom position of the right surface of the front thigh splint 11;

[0035] Refer to the instruction manual Figure 4 As shown: the calf jacket 2 includes a calf front splint 21 and a fixed cylinder 22 fixed at the top position of the right side surface of the calf front splint 21;

[0036] Refer to the instruction manual Figure 3 As shown: the knee joint driving component 3 includes a left side plate 31 and a right side plate 36, the top and bottom of the side where the left side plate 31 and the right side plate 36 are close to each other are fixedly connected with a partition plate 34, and the side surface of the right side plate 36 close to the left side plate 31 is rotatably connected with two mutually meshing half-toothed gears 37, and the ends of the half-toothed gears 37 that are far away from each other are fixedly connected with a pulling arm 35 located outside the left side plate 31 and the right side plate 36;

[0037] Refer to the instruction manual Figure 3 As shown: a driven gear 38 is fixedly connected to a side of the top half-tooth gear 37 away from the right side plate 36, a servo drive motor 32 is installed on a side of the left side plate 31 away from the right side plate 36, an output shaft of the servo drive motor 32 passes through between the left side plate 31 and the right side plate 36 and is connected to a drive gear 33, and the driven gear 38 and the servo drive motor 32 are meshed and transmitted with each other;

[0038] Refer to the instruction manual Figure 5 As shown: the venous restraint belt 4 includes a canvas belt 41, a strip of air bag 45 fixed to the inner surface of the canvas belt 41 by adhesive, and a servo air pump 43 fixed to the outer surface of the canvas belt 41, and the air supply end of the servo air pump 43 is connected to the air tube 44 that penetrates into the inner cavity of the strip of air bag 45 through a joint.

[0039] Refer to the instruction manual Figure 2As shown in the figure, the left and right surfaces of the front thigh splint 11 are provided with a plurality of ventilation holes, and the rear end surface of the front thigh splint 11 is provided with a strip-shaped through groove that runs vertically through for the calf to be placed. The end of the fixed shaft 13 away from the front thigh splint 11 is fixedly connected to the side wall of the top pulling arm 35, and the end of the fixed cylinder 22 away from the front calf splint 21 is fixedly connected to the side wall of the bottom pulling arm 35.

[0040] Refer to the instruction manual Figure 4 As shown in the figure, the left and right surfaces of the front calf splint 21 are provided with a plurality of ventilation holes, and the rear end surface of the front calf splint 21 is provided with a strip-shaped through groove that runs vertically through for the calf to be placed. One end of the fastening belt 12 is fixedly connected to the right side of the rear end surface of the front thigh splint 11, and a Velcro is sewn on the inner surface of the fastening belt 12, and a Velcro is sewn on the front and left surfaces of the front thigh splint 11.

[0041] Refer to the instruction manual Figure 3 As shown: the left and right side surfaces of the partition 34 are respectively fixedly connected to the side of the left plate 31 and the right plate 36 close to each other, and the partition 34 forms a space between the left plate 31 and the right plate 36; the inside of the left plate 31 is provided with a through hole for the output shaft of the servo drive motor 32 to pass through, and the inside of the through hole is provided with a bearing adapted to the output shaft of the servo drive motor 32; the upper and lower positions of the side surface of the right plate 36 close to the left plate 31 are fixedly connected with a rotating shaft, and the half-tooth gear 37 is rotatably set on the outer ring surface of the rotating shaft.

[0042] Refer to the instruction manual Figure 5 As shown: a connecting plate 42 is fixedly connected to the outer surface of the canvas strap 41, the shell of the servo air pump 43 is fixed to the outer wall of the connecting plate 42, the strip airbag 45 and the canvas strap 41 are provided with through holes for the air supply pipe 44 to pass through, the inner surface edges of the strip airbag 45 are chamfered with arcs to ensure that after the strip airbag 45 is expanded, its corners will not cause local excessive squeezing of the calf, one end of the canvas strap 41 is fixedly connected to the right side of the rear end surface of the front calf splint 21, a Velcro is sewn on the inner surface of the canvas strap 41, and matching Velcro is sewn on the front surface and left side surface of the front calf splint 21.

[0043] According to the above-mentioned preferred technical solution, the workflow of the technical solution is described as follows:

[0044] The calf front splint 21 is inserted into the calf through the strip groove on the rear end surface and worn on the calf, and the thigh front splint 11 is inserted into the thigh through the strip groove on the rear end surface; after fastening the fastening belt 12 and the canvas belt 41 in turn, according to the program set by the controller, the servo air pump 43 draws external air into the trachea 44, and the trachea 44 then transports the air to the interior of the strip airbag 45 in turn, forcing the strip airbag 45 to expand and squeeze the calf. As the degree of expansion of the strip airbag 45 from top to bottom increases, the venous blood pressure circulating back from the toes is accelerated to flow upward due to the pressure.

[0045] After the patient wears the calf splint 21 and the thigh splint 11, the servo drive motor 32 will drive the output shaft to rotate in a reciprocating manner according to the bending time of the patient's knee joint, and after the driving gear 33 rotates, it will drive the driven gear 38 to rotate forward or reverse, thereby driving the top half-tooth gear 37 to rotate forward or reverse. Since the bottom half-tooth gear 37 is meshed with the top half-tooth gear 37, when the top half-tooth gear 37 rotates forward, the bottom half-tooth gear 37 will reverse, thereby driving the upper and lower traction arms 35 connected to the calf splint 21 and the thigh splint 11 to expand or close with each other, thereby helping the knee joint to bend.

[0046] The present invention is not limited to the above-mentioned optimal implementation mode. Anyone should be aware that any structural changes made under the inspiration of the present invention, and any technical solutions that are the same or similar to the present invention, fall within the protection scope of the present invention. Finally, it should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the restrictive conditions that can be implemented in this application, so they have no technical substantive significance. Any structural modification, change in proportional relationship or adjustment of size, without affecting the effects that can be produced by this application and the purposes that can be achieved, should still fall within the scope that can be covered by the technical content disclosed in this application.

Claims

1. A wearable device for preventing lower extremity venous thrombosis, comprising a thigh jacket (1), characterized in that: A calf jacket (2) is provided below the thigh jacket (1), a knee joint driving component (3) is fixedly connected to the right side surfaces of the thigh jacket (1) and the calf jacket (2), and 2-3 vein restraint belts (4) are provided on the rear side surface of the calf jacket (2); The thigh jacket (1) comprises a front thigh splint (11), two fastening straps (12) fixed to the rear side of the right surface of the front thigh splint (11), and a fixed shaft (13) is fixedly connected to the bottom position of the right side surface of the front thigh splint (11); The calf jacket (2) comprises a calf front splint (21) and a fixed cylinder (22) fixed at the top position of the right side surface of the calf front splint (21); The knee joint driving component (3) comprises a left side plate (31) and a right side plate (36), the top and bottom of the side where the left side plate (31) and the right side plate (36) are close to each other are fixedly connected with a partition plate (34), the side surface of the right side plate (36) close to the left side plate (31) is rotatably connected with two mutually meshing half-toothed gears (37), and the ends of the half-toothed gears (37) away from each other are fixedly connected with a pulling arm (35) located outside the left side plate (31) and the right side plate (36); A driven gear (38) is fixedly connected to a side of the top half-toothed gear (37) away from the right side plate (36); a servo drive motor (32) is installed on a side of the left side plate (31) away from the right side plate (36); an output shaft of the servo drive motor (32) passes through between the left side plate (31) and the right side plate (36) and is connected to a drive gear (33); the driven gear (38) and the servo drive motor (32) are meshed and transmitted with each other; The venous restraint belt (4) includes a canvas belt (41), a strip of air bag (45) fixed to the inner surface of the canvas belt (41) by adhesive, and a servo air pump (43) fixed to the outer surface of the canvas belt (41), and the air supply end of the servo air pump (43) is connected to an air tube (44) that penetrates the inner cavity of the strip of air bag (45) through a joint.

2. A wearable device for preventing lower extremity venous thrombosis according to claim 1, characterized in that: The left and right surfaces of the front thigh splint (11) are both provided with a plurality of ventilation holes, and the rear end surface of the front thigh splint (11) is provided with a strip-shaped through groove that runs vertically through for the thigh and calf to be placed.

3. A wearable device for preventing lower extremity venous thrombosis according to claim 1, characterized in that: One end of the fixed shaft (13) away from the front thigh splint (11) is fixedly connected to the side wall of the top pulling arm (35), and one end of the fixed cylinder (22) away from the front calf splint (21) is fixedly connected to the side wall of the bottom pulling arm (35).

4. A wearable device for preventing lower extremity venous thrombosis according to claim 1, characterized in that: The left and right surfaces of the front calf splint (21) are both provided with a plurality of ventilation holes, and the rear end surface of the front calf splint (21) is provided with a vertically penetrating strip-shaped through groove for placing the calf.

5. A wearable device for preventing lower extremity venous thrombosis according to claim 1, characterized in that: One end of the fastening belt (12) is fixedly connected to the right side of the rear end surface of the front thigh splint (11), and a Velcro tape is sewn on the inner surface of the fastening belt (12), and Velcro tape is sewn on the front surface and left surface of the front thigh splint (11).

6. A wearable device for preventing lower extremity venous thrombosis according to claim 1, characterized in that: The left and right side surfaces of the partition (34) are respectively fixedly connected to the sides of the left side plate (31) and the right side plate (36) that are close to each other, and the partition (34) forms a space between the left side plate (31) and the right side plate (36).

7. A wearable device for preventing lower extremity venous thrombosis according to claim 1, characterized in that: A through hole is provided inside the left side plate (31) for the output shaft of the servo drive motor (32) to pass through, and a bearing adapted to the output shaft of the servo drive motor (32) is provided inside the through hole.

8. A wearable device for preventing lower extremity venous thrombosis according to claim 1, characterized in that: A rotating shaft is fixedly connected to the upper and lower positions of a side surface of the right side plate (36) close to the left side plate (31), and the half-toothed gear (37) is rotatably arranged on the outer ring surface of the rotating shaft.

9. A wearable device for preventing lower extremity venous thrombosis according to claim 1, characterized in that: A connecting plate (42) is fixedly connected to the outer surface of the canvas strap (41), and the outer shell of the servo air pump (43) is fixed to the outer wall of the connecting plate (42). The interiors of the strip airbag (45) and the canvas strap (41) are provided with through holes through which the air supply pipe (44) passes, and the edges of the inner surfaces of the strip airbag (45) are chamfered with arcs.

10. A wearable device for preventing lower extremity venous thrombosis according to claim 1, characterized in that: One end of the canvas strap (41) is fixedly connected to the right side of the rear end surface of the front calf splint (21), and a Velcro tape is sewn on the inner surface of the canvas strap (41), and matching Velcro tapes are sewn on the front surface and left surface of the front calf splint (21).

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