Lower limb traction device

Abstract

The utility model discloses a lower limb traction device, which relates to the technical field of medical instruments and comprises a traction rope, a lifting unit, a clamping unit, a pressure sensing unit and a control unit. The pulling rope is used for pulling lower limbs; the lifting unit is connected to a bed tail; the clamping unit is arranged at the upper end of the lifting unit and is used for clamping the traction rope; the pressure sensing unit comprises a rope passing barrel and a plurality of pressure sensors; the pressure sensors are evenly distributed on the inner wall of the rope passing barrel, and the traction rope penetrates through the rope passing barrel. The lifting unit, the clamping unit and the pressure sensing unit are all connected with the control unit. According to the lower limb traction device, instant dragging force is not prone to being generated on the lower limbs of a patient in the traction process, traction treatment is safer, the functional positions of the lower limbs of the patient can be better kept, and dislocation is not prone to occurring.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of medical apparatus and instruments, and particularly relates to a lower limb traction device. BACKGROUND

[0002] Lower limb traction is one of the treatment methods widely used in orthopedics, mainly placing the lower limbs of patients on a traction frame, and then using the weight of the suspension weight as the traction force, such as connecting one end of a traction rope to the lower limbs of the patients and the other end to the suspension weight to traction the lower limbs, so as to relieve muscle tension and strong contraction, straighten the fracture end and keep the alignment and alignment. The suspension weight of the current traction device is located at the tail of the bed, and when people pass by, they may accidentally knock down the suspended weight, and the weight shakes or falls, which changes the traction force and causes instantaneous dragging force on the lower limbs of the patients, which easily causes discomfort to the patients. UTILITARY MODEL

[0003] The utility model solves the technical problem of providing a lower limb traction device which is not easy to cause instantaneous dragging force on the lower limbs of the patients during traction.

[0004] In order to solve the above problems, the utility model adopts the following technical scheme:

[0005] The lower limb traction device comprises a traction rope, a lifting unit, a clamping unit, a pressure sensing unit and a control unit; the traction rope is used for traction of the lower limbs; the lifting unit is used for connection at the tail of the bed; the clamping unit is arranged at the upper end of the lifting unit and used for clamping the traction rope; the pressure sensing unit comprises a rope passing barrel and a plurality of pressure sensors; the pressure sensors are evenly distributed on the inner wall of the rope passing barrel, and the traction rope passes through the rope passing barrel; the lifting unit, the clamping unit and the pressure sensing unit are connected with the control unit.

[0006] Further, a bed tail clamp for fixing at the tail of the bed is arranged on the lifting unit, the bed tail clamp is in the shape of C, a through screw hole is arranged at the lower end of the bed tail clamp, and a fastening screw is arranged on the screw hole.

[0007] Further, the clamping unit comprises a sliding groove, a sliding block and a through lead screw motor; the sliding groove is in the shape of U, the through lead screw motor is installed at one end of the opening of the sliding groove, the sliding block is arranged at the end of the lead screw of the through lead screw motor and is slidably arranged in the sliding groove, and the traction rope passes through the space between the sliding groove and the closed end of the sliding groove.

[0008] Further, a side groove is arranged on the side wall of the sliding groove, a protruding block part is arranged on the side surface of the sliding block, and the protruding block part is slidably arranged in the side groove.

[0009] Further, a foot cover is connected to the traction rope, two side connecting belts are fixedly connected to the two sides of the foot cover, a traction rod is connected between the two side connecting belts, and the traction rope is connected to the middle part of the traction rod.

[0010] Further, the traction rope is connected with a weight box, the weight box comprises a bottom box, an intermediate box and a box cover arranged from bottom to top, a fixed hole with internal thread is arranged in the middle of the bottom box and the intermediate box, a screw rod is arranged at the lower end of the intermediate box and the box cover, and the screw rod is connected to the fixed hole through thread.

[0011] Further, the lifting unit adopts an electric push rod, and comprises a shell and a push rod, the push rod is slidably arranged in the shell, and the clamping unit is arranged at the upper end of the push rod.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] In the process of the traction rope shaking, the pressure sensor is subjected to pressure, so that the clamping unit is triggered to clamp the traction rope, and the lifting unit is lifted upward, so that the end of the traction rope connected with the lower limbs is relaxed, so that the drag force generated by the shaking of the weight can be avoided to be transmitted to the lower limbs of the patient, so as to avoid the discomfort of the patient. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a structural schematic view of the utility model embodiment.

[0015] Figure 2 is Figure 1 is a structural schematic view of the lifting unit and the clamping unit.

[0016] Figure 3 is Figure 2 is a structural schematic view of the sliding block.

[0017] Figure 4 is Figure 1 is an explosion view of the weight box.

[0018] Figure 5 is a circuit principle view of the utility model embodiment.

[0019] Marked numbers in the drawing: 1, foot cover; 2, connecting belt; 3, traction rod; 4, traction rope; 5, lifting unit; 6, clamping unit; 61, through-wire screw motor; 62, sliding block; 63, sliding groove; 7, pressure sensing unit; 71, rope passing cylinder; 72, pressure sensor; 8, bed tail clamp; 9, fastening screw; 10, weight box; 101, box cover; 102, intermediate box; 103, bottom box; 104, screw rod; 105, fixed hole; 11, control unit. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the utility model more clear and obvious, the utility model is further described in detail below by combining with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model, and are not used to limit the utility model.

[0021] AsFigures 1-5 The lower limb traction device of the embodiment includes a traction rope 4, a lifting unit 5, a clamping unit 6, a pressure sensing unit 7 and a control unit 11.

[0022] The traction rope 4 is used for traction of the lower limb, one end of the traction rope 4 is connected with a foot cover 1, the foot cover 1 can be fixed on the patient's affected limb, two side connecting belts 2 are fixedly connected on both sides of the foot cover 1, a traction rod 3 is connected between the two side connecting belts 2, the traction rope 4 is connected to the middle part of the traction rod 3, the traction rope 4 can exert an axial traction force on the patient's lower limb, so that the patient can better keep the functional position of the lower limb and is not easy to be dislocated. The other end of the traction rope 4 is connected with a weight box 10, the weight box 10 includes a bottom box 103, a middle box 102 and a box cover 101 arranged from bottom to top, a fixed hole 105 with internal thread is arranged in the middle part of the bottom box 103 and the middle box 102, a screw rod 104 is arranged at the lower end of the middle box 102 and the box cover 101, and the screw rod 104 is connected to the fixed hole 105 through the thread. The middle box 102 can include multiple boxes, and the number of the weight boxes is determined according to the need. At present, the weights are mainly placed on the weight rod, and the weights are easy to fall off the weight rod when they are hit. The weight box 10 is arranged to facilitate the loading of the weights and to be safer.

[0023] The lifting unit 5 is used for connection at the tail of the bed, specifically, a tail clamp 8 for fixing at the tail of the bed is arranged on the lifting unit 5, the tail clamp 8 is in a C-shaped form, a through screw hole is arranged at the lower end of the tail clamp 8, a fastening screw 9 is arranged on the screw hole, and the tail clamp 8 can be clamped stably at the tail of the bed by rotating the fastening screw 9. The lifting unit 5 adopts an electric push rod, including an outer shell and a push rod, the push rod is slidably arranged in the outer shell, and a clamping unit 6 is arranged at the upper end of the lifting unit 5 to clamp the traction rope 4; specifically, the clamping unit 6 is arranged at the upper end of the push rod, and the clamping unit 6 is lifted upward by the extension of the push rod.

[0024] The clamping unit 6 includes a sliding groove 63, a sliding block 62 and a through screw rod motor 61; the sliding groove 63 is in a U-shaped form, the through screw rod motor 61 is installed at one end of the opening of the sliding groove 63, the sliding block 62 is arranged at the screw rod end of the through screw rod motor 61 and is slidably arranged in the sliding groove 63, and the traction rope 4 passes through between the sliding groove 63 and the closed end of the sliding groove 63, wherein a rotating shaft is arranged at the screw rod end, an axle hole is arranged on the sliding block 62, and the rotating shaft is connected to the axle hole, so that the sliding block 62 can rotate relative to the screw rod. In order to make the sliding block 62 move more stably in the sliding groove 63, a side groove is arranged on the side wall of the sliding groove 63, and a protruding block part is arranged on the side surface of the sliding block 62, and the protruding block part is slidably arranged in the side groove.

[0025] The pressure sensing unit 7 comprises a rope passing cylinder 71 and a pressure sensor 72, the traction rope 4 passes through the rope passing cylinder 71, wherein the rope passing cylinder 71 is fixed on the shell of the lifting unit 5 through a connecting rod, the pressure sensor 72 comprises a plurality of pieces, which are uniformly distributed on the inner wall of the rope passing cylinder 71, the pressure sensor 72 can adopt a thin film sensor with a model of F4046, and the control unit 11 can adopt a system board with a model of STM32F103C8T6. The lifting unit 5, the clamping unit 6 and the pressure sensing unit 7 are connected with the control unit 11, and in the embodiment, the electric push rod, the through screw rod motor 61 and the pressure sensor 72 are connected to the system board.

[0026] In the process of traction, if the pedestrian passes by the scale box 10 from the tail of the hospital bed and accidentally collides with the scale box 10, the scale box 10 swings under the action of gravity, the traction rope 4 in the rope passing cylinder 71 shakes, and pressure is generated on the pressure sensor 72. After the control unit 11 receives the pressure change signal of the pressure sensor 72, instructions are sent to the lifting unit 5 and the clamping unit 6, so that the screw rod of the through screw rod motor 61 rotates forward, thereby driving the sliding block 62 to move, the traction rope 4 is clamped between the sliding block 62 and the closed end of the sliding groove 63, then the lifting unit 5 moves upwards, so that the traction rope 4 is relaxed between the traction rod 3 and the clamping unit 6, thereby avoiding the instantaneous drag force generated by the swing of the scale box 10 from being transmitted to the patient's leg, so as to avoid the discomfort of the patient and make the traction treatment safer.

[0027] The above is only a preferred embodiment of the utility model, and is not used to limit the utility model, and any modification, equivalent replacement and improvement made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A lower limb traction device, characterized in that, The utility model relates to a lower limbs traction device, which comprises: a traction rope for traction of lower limbs; a lifting unit connected at the end of a bed; a clamping unit arranged at the upper end of the lifting unit for clamping the traction rope; a pressure sensing unit comprising a rope passing cylinder and a plurality of pressure sensors, the pressure sensors are evenly distributed on the inner wall of the rope passing cylinder, and the traction rope passes through the rope passing cylinder; a control unit connected with the lifting unit, the clamping unit and the pressure sensing unit.

2. The lower limbs traction device according to claim 1, wherein a bed end clamp is arranged on the lifting unit for fixing at the end of a bed, the bed end clamp is in the shape of C, the lower end of the bed end clamp is provided with a through screw hole, and a fastening screw is arranged on the screw hole.

3. The lower limbs traction device according to claim 1, wherein the clamping unit comprises a sliding groove, a sliding block and a through lead screw motor, the sliding groove is in the shape of U, the through lead screw motor is installed at one end of the opening of the sliding groove, the sliding block is arranged at the end of the lead screw of the through lead screw motor and is slidably arranged in the sliding groove, and the traction rope passes through between the sliding groove and the closed end of the sliding groove.

4. The lower limbs traction device according to claim 3, wherein a side groove is arranged on the side wall of the sliding groove, and a protruding block part is arranged on the side surface of the sliding block, and the protruding block part is slidably arranged in the side groove.

5. The lower limbs traction device according to claim 1, wherein a foot cover is connected with the traction rope, two connecting belts are fixedly connected at both sides of the foot cover, a traction rod is connected between the two connecting belts, and the traction rope is connected to the middle part of the traction rod.

6. The lower limbs traction device according to claim 1, wherein a weight box is connected with the traction rope, the weight box comprises a bottom box, an intermediate box and a box cover arranged from bottom to top, a fixed hole with internal threads is arranged in the middle part of the bottom box and the intermediate box, a screw rod is arranged at the lower end of the intermediate box and the box cover, and the screw rod is connected to the fixed hole through threads.

7. The lower limbs traction device according to claim 1, wherein the lifting unit adopts an electric push rod, comprising a shell and a push rod, the push rod is slidably arranged in the shell, and the clamping unit is arranged at the upper end of the push rod.

Images