CN106859829A - A kind of Bone traction force device - Google Patents

Abstract

The invention relates to a bone traction force device, comprising a traction component, an elastic component, and a force sensor, the elastic component or force sensor is connected to the traction component; an adjustment component for adjusting the telescopic length of the elastic component; a traction signal transceiver module, and a control module And the power supply, the control module outputs the control signal according to the comparison result of the feedback signal of the actual value of the traction force and the input signal of the set value of the traction force received by the traction signal transceiver module, and controls the adjustment component to adjust the stretching length of the elastic member, so that the force sensor detects the changed length The actual value of the traction force received by the last elastic member is equal to the set value; at the same time, the control module outputs a control signal according to the input signal, and controls the adjustment part to maintain the action time period of the elastic member. The bone traction force device can realize self-setting of single or combined bone traction force size and action time period according to needs, and can realize continuous adjustment of bone traction force, high adjustment precision, simple structure, and convenient operation.

Description

A bone traction force device

technical field

The invention relates to a medical auxiliary instrument, in particular to a bone traction force device.

Background technique

The current bone traction surgery generally uses a bone traction device to slowly reset the fracture or dislocation by fixing it at a specific position. It is not only a method of reduction, but also can play a good role in fixation. It is often used in patients with skin injury, severe swelling, wound infection or severe bone comminuted who are not suitable for internal fixation.

The current bone traction device, as shown in FIG. 1 , mainly includes a bone needle 101 interspersed on the traction part 106, and the bone needle 101 is connected to a traction bow 102, a rope 103, a traction frame 104 (such as a pulley) and a traction weight 105 in turn. and other utensils mainly increase or decrease the size of the bone traction force by changing the weight of the traction weight 105, so as to realize the adjustment of the traction force on the fracture and dislocation. The adjustment of the bone traction force in this way is limited and discrete, and cannot achieve continuous adjustment of the traction force. If the adjustment amount is too large or too small, it will easily cause discomfort to the patient, and it is difficult to meet the actual needs of precise continuous adjustment. And it is inconvenient to adjust by manually increasing or decreasing the mode of the traction weight 105, and medical personnel are required to assist the adjustment.

Contents of the invention

The purpose of the present invention is to overcome the disadvantages of the existing bone traction device in the prior art, such as manual increase and decrease of traction weights to adjust the bone traction force, which cannot achieve continuous adjustment and is troublesome to adjust, and provide a bone traction force The device can realize self-setting, adjustment or release of the bone traction force according to the doctor's order, and can realize the effect of continuous adjustment of the bone traction force, and the operation is simple and convenient.

In order to realize the above-mentioned purpose of the invention, the present invention provides the following technical solutions:

A bone traction force device, comprising a traction component, the traction component includes a bone needle, a traction bow, a traction frame and a rope, and also includes:

an elastic member, the elastic member is connected to the force sensor, and the elastic member or the force sensor is connected to the traction member;

An adjustment component, used to adjust the telescopic length of the elastic member;

The traction signal transceiver module is used to receive the feedback signal of the actual value of the traction force on the elastic member measured by the force sensor and the input signal for receiving the input single or combined traction force setting value and action time period;

The control module, according to the feedback signal of the actual value of the traction force compared with the input signal of the set value of the traction force received by the traction signal transceiver module, outputs a control signal to control the adjustment component to adjust the stretching length of the elastic member, so that the force sensor It is detected that the actual value of the traction force received by the elastic member after changing the length is equal to the set value; at the same time, the control module inputs the signal according to the traction force action time period received by the traction signal transceiver module, outputs the control signal, and controls the adjustment part to keep the elastic member as corresponding The action time period of stretching length;

The power supply provides power input for the force sensor, the adjustment component, the traction signal transceiver module and the control module.

The bone traction force device includes a traction component, an elastic component, a force sensor, a traction signal transceiver module, a communication connection control module, a control module, and an adjustment component, and the adjustment component, the force sensor, the control module, and the traction signal transceiver module are connected to a power supply. Among them, the force sensor can feed back the actual value signal of the measured traction force to the control module, and the traction signal transceiver module receives the input signal of the set value of the traction force and the action time period, and transmits it to the control module, and the control module compares the set value of the traction force with the The difference of the actual value of the traction force is transformed into a control signal of the adjusting component, and the adjusting component adjusts the stretching length of the elastic member to control the magnitude of the traction force to ensure that the actual value of the traction force on the traction component is consistent with the set value. At the same time, the control module outputs the control signal according to the traction force action time period input signal received by the traction signal transceiver module, and controls the adjustment part to keep the elastic member at the action time period corresponding to the stretching length;

Compared with the existing bone traction device, the bone traction force device can only increase or decrease the bone traction effect by simply increasing or decreasing the traction weight, and can only realize discrete traction value setting, and can realize self-setting of the size and weight according to the doctor's order. The single or combined bone traction force of the action time period can realize the effect of continuous adjustment of the bone traction force, the structure is simple, the operation is convenient, and the adjustment accuracy is high.

Preferably, the adjustment component includes a deceleration motor, a winding wheel and a brake component are fixed on the rotation shaft of the deceleration motor, and the elastic member or force sensor is connected to the winding wheel through a rope.

The deceleration motor drives the reel to rotate, and winds or releases the rope to reduce or increase the length of the rope, so as to realize the elongation or shortening of the elastic member, and then change the traction force of the rope on the traction part. There is also a brake on the reel shaft A component used to quickly stop the rotation of the reel and keep the rope and elastic in a certain state of elongation or shortening to achieve a constant state after changing the traction force.

Preferably, one end of the elastic member is connected to the force sensor, and the other end is connected to the reel through a rope, and the force sensor is connected to the traction member through a rope.

Preferably, the bone traction force device further includes a housing, in which the force sensor, adjustment component, traction signal transceiver module, control module and power supply are integrated, and the housing includes a fixed end for fixing and a power supply. An access end for attaching the towing unit rope.

Various components of the bone traction force device are arranged in the casing, wherein the two ends of the casing are fixed sections and access ends, and the fixed ends are connected to places capable of bearing tension, such as hospital beds or heavy objects. The access end is used to connect the traction bow and transmit the traction force to the traction part.

Preferably, the access end is a hook, the hook is connected to the force sensor through a rope, the force sensor is connected to the elastic member, and the elastic member is connected to the adjustment component through a rope.

Preferably, the fixed end is an elastic hook, and the hook is connected to the housing.

Preferably, the elastic member is a compression spring, and the traction force is provided by changing the expansion and contraction length of the compression spring.

Preferably, the bone traction force device further includes a remote control component, and the remote control component includes:

Input module, used to input single or combined traction force setting value, action time and reset signal;

A display terminal, used to display the single or combined traction force setting value, action time period and reset signal input by the input module;

The remote control signal transceiver module is used to send the single or combined traction force setting value, action time and reset signal to the traction signal transceiver module and transmit it to the control module;

The power supply of the remote control component is used to provide power to the input module, the display terminal and the remote control signal transceiving module.

In order to facilitate operation and change the set value of the traction force, there is also a remote control part, wherein the remote control part includes an input module, a display terminal, a remote control signal transceiver module and a power supply. Or combined traction force action time period, it is convenient for patients or medical staff to maintain a certain traction force for a certain period of time, and it is also possible to realize a combination of one group or more of force and action time period through programming. All traction setpoint input signals are sent to the control module through the remote control signal transceiver module to realize the expansion and contraction of the elastic member to change the actual value of the traction force. The input signal can be intuitively displayed on the display terminal, which greatly simplifies the traction adjustment method and operation. easy.

Preferably, the remote control signal transceiving module is also used to receive the traction force actual value feedback signal and timing signal generated by the traction signal transceiving module, and display them on the display terminal.

Preferably, the remote control signal transceiving module is wirelessly connected to the traction signal transceiving module.

The remote control part controlled by the wireless signal can realize the separation of the traction part and the remote control part for a longer distance, which is convenient for adjustment.

Compared with prior art, the beneficial effect of the present invention:

1. The bone traction force device of the present invention can feed back the actual value signal of the tested traction force to the control module through the force sensor, and the traction signal transceiver module receives the input signal of the set value of traction force and transmits it to the control module to control The module converts the difference between the set value of the traction force and the actual value of the traction force into the control signal of the adjustment component, and the adjustment component adjusts the stretching length of the elastic member to control the magnitude of the traction force, so as to ensure that the actual value of the traction force on the traction component maintains the set value. Consistent; at the same time, the control module receives the traction force action time period input signal according to the traction signal transceiver module, outputs the control signal, and controls the adjustment part to keep the elastic member at the action time period corresponding to the stretching length; compared with the existing bone traction device, it mainly uses the traction weight The increase or decrease of bone traction can only realize the setting of discrete traction value and its action time needs to be controlled manually, but the bone traction force and action time period can be set by yourself according to the doctor's order, and It can achieve the effect of continuous adjustment of bone traction force, simple structure, convenient operation, and high adjustment accuracy;

2. The adjustment part of the bone traction force device of the present invention includes a deceleration motor, and a reel and a brake part are fixed on the rotating shaft of the deceleration motor, and the reel is driven to rotate by the deceleration motor to wind or release the rope. To reduce or increase the length of the rope, to achieve the elongation or shortening of the elastic member, and then change the size of the rope traction force on the traction part, there is also a brake part on the reel shaft, which is used to quickly stop the rotation of the reel and keep The rope and the elastic member are in a state of elongation or shortening to achieve a constant state after the traction force is changed;

3. Various parts of the bone traction force device are arranged in the casing, wherein the fixed sections and the access ends at both ends of the casing, wherein the fixed ends are connected to places that can bear the tension, such as hospital beds or heavy objects, and are connected to The input end is used to connect the traction bow, and transmit the traction force to the traction part, and it is convenient and reliable to connect with the traction part;

4. The bone traction force device of the present invention adopts remote control components, which can set the magnitude of the traction force and also set the time period of the traction force action, which can facilitate patients or medical staff to maintain a certain constant force on the traction force for a certain period of time. The combined traction force of one group or more of acting force and action time period can be realized by programming method, which greatly simplifies the adjustment method of traction compared with the existing bone traction device which mainly realizes the combined traction force by manually replacing traction weights .

Description of drawings:

Fig. 1 is the structural representation of the existing bone traction device adopted;

Fig. 2 is a schematic structural view of the bone traction force device of the present invention;

Fig. 3 is a schematic structural view of the traction component in the bone traction force device of the present invention;

Fig. 4 is a schematic structural diagram of the adjusting part in the traction part in Fig. 3;

Fig. 5 is a schematic structural diagram of the fixed end and the access end connected to the object in Fig. 3;

Fig. 6 is a structural schematic diagram of the remote control part of the bone traction force device of the present invention;

Fig. 7 is a schematic diagram of the remote control part in Fig. 6 .

Marked in the figure:

101, bone needle, 102, traction bow, 103, rope, 104, traction frame, 105, weight, 106, traction part;

1. traction component, 11. bone needle, 12. traction bow, 13. rope, 14. traction frame, 2. shell, 21. fixed end, 22. access terminal, 3. power supply, 4. adjustment component, 41 , deceleration motor, 42, reel, 43, brake component, 44, rope, 5, elastic member, 6, force sensor, 7, traction signal transceiver module, 8, control module, 9, remote control component, 91, remote control signal transceiver module, 92, input module, 93, display terminal.

detailed description

The present invention will be further described in detail below in conjunction with test examples and specific embodiments. However, it should not be understood that the scope of the above subject matter of the present invention is limited to the following embodiments, and all technologies realized based on the content of the present invention belong to the scope of the present invention.

As shown in Figures 2 and 3, a bone traction force device includes a traction component 1, and the traction component 1 includes a bone needle 11, a traction bow 12, a traction frame 14 and a rope 13, and also includes:

An elastic member 5, the elastic member 5 is connected to the force sensor 6, and the elastic member 5 or the force sensor 6 is connected to the traction member 1;

The adjusting part 4 is used to adjust the telescopic length of the elastic member 5;

The traction signal transceiving module 7 is used to receive the feedback signal of the actual value of the traction force received by the elastic member 5 measured by the force sensor 6 and the input signal for receiving the input single or combined traction force setting value and action time period;

The control module 8 compares the feedback signal of the actual value of the traction force with the input signal of the set value of the traction force received by the traction signal transceiver module 7, outputs a control signal, and controls the adjustment component 4 to adjust the stretching length of the elastic member 5, so that the force sensor 6 detects the change The actual value of the traction force received by the elastic member 5 after the length is equal to the set value; at the same time, the control module 8 receives the traction force action time period input signal according to the traction signal transceiver module 7, outputs the control signal, and controls the adjustment part 4 to keep the elastic member 5 as a pair. The action time period for which the length should be stretched;

The power supply 3 provides the input of the power supply 3 for the force sensor 6 , the adjustment component 4 , the traction signal transceiver module 7 and the control module 8 .

As shown in Figure 3, the bone traction force device also includes a housing 2, which integrates a force sensor 6, an adjustment component 4, a traction signal transceiver module 7, a control module 8 and a power supply 3, the housing 2 The outside includes a fixed end 21 for fixing and an access end 22 for connecting the rope 13 of the traction component 1 . Since the various parts of the bone traction force device are arranged in the housing 2, wherein the two ends of the housing 2 are fixed and the access end 22, wherein the fixed end 21 is connected to a place that can bear the pulling force, such as a hospital bed or a heavy object Wait. The access end 22 is used to connect the traction bow, and transmit the traction force to the traction part.

As shown in Figure 4, the above-mentioned adjusting part 4 includes a forward and reverse reduction motor 41, a reel 42 and a brake part 43 are fixed on the rotating shaft of the reduction motor 41, and the elastic member 5 adopts a commonly used compression spring. The stretching length of the spring provides traction; one end of the compression spring is connected to the force sensor 6 , and the other end is connected to the reel 42 through a rope 44 . When the deceleration motor 41 drives the winding wheel 42 to rotate, the rope 44 can be wound or released through the forward rotation or reverse rotation of the winding wheel 42, so as to reduce or increase the length of the rope 44, so as to realize the extension or shortening of the compression spring , and then change the size of the traction force of the rope 13 on the traction part 1; the brake part 43 on the shaft of the reel 42 preferably adopts a brake disc, which is used to quickly stop the rotation of the reel 42, and keep the rope 44 and the elastic member 5 in a certain position. A state of elongation or shortening to achieve a constant state after changing traction.

As shown in Fig. 5, the access end 22 adopted on the housing 2 is a hook, the hook is connected to the force sensor 6 through a rope 44, the force sensor 6 is connected to the compression spring through the rope 44, and the compression spring is connected to the adjustment part through the rope 44 4. The fixed end 21 on the housing 2 is also a crotch. In order to adapt to different fixtures, such as a bed body and a bracket, the crotch is designed as an elastic crotch, which can adjust the bent shape to adapt to the fixed position. The end of the hook is attached to the housing 2 .

The bone traction force device adopts a traction component 1, an elastic component 5, a force sensor 6, a traction signal transceiver module 7, a communication connection control module 8, a control module 8 and an adjustment component 4, an adjustment component 4, a force sensor 6, and a control module. 8. The traction signal transceiver module 7 is connected to the power supply 3 . Wherein the force sensor 6 can feed back the actual value signal of the tested traction force to the control module 8, the traction signal transceiver module 7 receives the input signal of the traction force set value, and transmits it to the control module 8, and the control module 8 compares the traction force set value with The difference of the actual value of the traction force is converted into a control signal of the regulating part 4, and the regulating part 4 adjusts the stretching length of the elastic part 5 to control the magnitude of the traction force, so as to ensure that the actual value of the traction force on the traction part 1 is consistent with the set value. Simultaneously, the control module 8 outputs the control signal according to the traction force action time period input signal received by the traction signal transceiver module 7, and controls the adjustment component 4 to keep the elastic member 5 for the action time period of the corresponding telescopic length;

Therefore, compared with the existing bone traction device, the bone traction effect can only be increased or decreased by simple increase or decrease of traction weights, and the value of discrete traction force can only be set, and it can be set according to the doctor's order. The bone traction force can be adjusted according to the size and action time, and the effect of continuous adjustment of the bone traction force can be realized. The structure is simple and the operation is convenient.

As shown in Figures 6 and 7, for convenient adjustment, the bone traction force device also includes a remote control part 9, and the remote control part 9 includes:

The input module 92 is used for inputting the signal of traction set value, action time and reset;

The display terminal 93 is used to display the single or combined traction force setting value, action time period and reset signal input by the input module 92;

The remote control signal transceiver module 91 is used to send the traction force setting value, action time and reset signals to the traction signal transceiver module 7 and transmit them to the control module 8;

The power supply is used to provide power to the input module 92 , the display terminal 93 and the remote control signal transceiving module 91 .

Wherein, the remote control signal transceiving module 91 is also used for receiving the traction force actual value feedback signal and the timing signal generated by the traction signal transceiving module 7 and displaying them on the display terminal 93 . In addition, the remote control signal transceiver module 91 is wirelessly connected with the traction signal transceiver module 7 . The remote control part 9 controlled by wireless signals can separate the traction part 1 and the remote control part 9 for a longer distance, which is convenient for adjustment.

Therefore, the wireless remote control part 9 is adopted, which can facilitate the operation of patients or medical staff to change the set value of the traction force. In addition to the size of the traction force that can be set in the input module 92, the remote control part 9 is also provided with a traction force action time period, which can facilitate the operation of the patient. Or the medical personnel keep the traction force at a certain constant force for a certain period of time, and can also realize the combined traction force of one group or more of force and action time period through programming. All traction setpoint input signals are sent to the control module 8 through the remote control signal transceiver module 91 to realize the expansion and contraction of the elastic member 5 to change the actual value of traction. This input signal can be intuitively displayed on the display terminal 93, which greatly simplifies the process of traction Adjustment method, easy to operate.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the protection of the present invention. within range.

Claims (10)

1. a bone traction force device, comprising a traction component, said traction component (1) comprising a bone needle (11), a traction bow (12), a traction frame (14) and a rope (13), it is characterized in that, include: An elastic member (5), the elastic member (5) is connected to the force sensor (6), and the elastic member (5) or the force sensor (6) is connected to the traction member (1); An adjustment component (4), used to adjust the telescopic length of the elastic member (5); The traction signal transceiving module (7) is used to receive the feedback signal of the actual value of the traction force received by the elastic member (5) measured by the force sensor (6) and the magnitude and value of the single or combined traction force set value for receiving input. The input signal of the action time period; The control module (8) outputs a control signal according to the comparison result between the feedback signal of the actual value of the traction force and the input signal of the set value of the traction force received by the traction signal transceiver module (7), and controls the adjustment component (4) to adjust the The stretching length of the elastic member (5) makes the force sensor (6) detect that the actual value of the traction force received by the elastic member (5) after changing the length is equal to the set value; at the same time, the control module (8) according to the traction signal The transceiving module (7) receives the traction action time period input signal, outputs a control signal, and controls the adjustment component (4) to keep the elastic member (5) at the action time period corresponding to the stretching length; The power supply (3) provides power input for the force sensor (6), the adjustment component (4), the traction signal transceiver module (7) and the control module (8). 2. A bone traction force device according to claim 1, characterized in that, the adjustment component (4) comprises a geared motor (41), and a winding wire is fixed on the rotating shaft of the geared motor (41) The wheel (42) and the brake component (43), the elastic member (5) or the force sensor (6) are connected to the reel (42) through a rope (44). 3. A bone traction force device according to claim 2, characterized in that, one end of the elastic member (5) is connected to the force sensor (6), and the other end is connected to the winding body through a rope (44). On the wire wheel, the force sensor (6) is connected to the traction member (1) through a rope (44). 4. A kind of bone traction force device according to claim 1, characterized in that, it also comprises a housing (2), the force sensor (6), the adjustment component ( 4), a traction signal transceiver module (7), a control module (8) and a power supply (3), the housing (2) includes a fixed end (21) for fixing and a fixed end (21) for connecting the traction component (1 ) access end (22) of the rope. 5. A bone traction force device according to claim 4, characterized in that, the access end (22) is a hook, and the hook is connected to the force sensor (6) through a rope (44) , the force sensor (6) is connected to the elastic member (5), and the elastic member (5) is connected to the adjustment component (4) through a rope (44). 6 . The bone traction force device according to claim 4 , characterized in that, the fixed end ( 21 ) is an elastic hook, and the hook is connected to the housing ( 2 ). 7. A bone traction force device according to claim 1, characterized in that the elastic member (5) is a compression spring. 8. A bone traction force device according to any one of claims 1-7, characterized in that it also includes a remote control component (9), and the remote control component (9) includes: The input module (92) is used to input the signal of single or combined traction force setting value, action time period and reset; A display terminal (93), used to display the single or combined traction force setting value, action time period and reset signal input by the input module (92); A remote control signal transceiver module (91), used to send a single or combined traction force setting value, action time period and reset signal to the traction signal transceiver module (7), and transmit it to the control module (8); The power supply of the remote control component is used to provide power to the input module (92), the display terminal (93) and the remote control signal transceiving module (91). 9. A bone traction force device according to claim 8, characterized in that the remote control signal transceiver module (91) is also used to receive the traction force actual value feedback signal and timing generated by the traction signal transceiver module (7) signal, and displayed on the display terminal (93). 10. A bone traction force device according to claim 8, characterized in that the remote control signal transceiving module (91) is wirelessly connected to the traction signal transceiving module (7).