CN112294331A

CN112294331A - Muscle tension tester and muscle tension testing method

Info

Publication number: CN112294331A
Application number: CN201910845802.5A
Authority: CN
Inventors: 贾玉雷
Original assignee: Hangzhou Qingda Huikang Technology Co ltd
Current assignee: Hangzhou Qingda Huikang Technology Co ltd
Priority date: 2019-08-01
Filing date: 2019-09-06
Publication date: 2021-02-02
Anticipated expiration: 2039-09-06
Also published as: CN112294331B

Abstract

The invention provides a muscle tension tester and a testing method. The test handle comprises a displacement detection element, a pressure deformation element and a skin contact element, wherein when a preset pressing force acts, the pressure deformation element has a deformation amount, the skin contact element outputs preset pressure to the surface of the skin of muscles to enable the muscles to have relative displacement, and the displacement detection element is provided with a circuit module which detects the deformation amount and the relative displacement and converts the deformation amount and the relative displacement into a voltage signal to be output. The control module is connected with the circuit module and is connected with the PC computer through a serial port. The control module collects the voltage signal output by the circuit module, converts the real-time voltage signal into a digital signal, intercepts effective data according to a calibrated numerical range and transmits the effective data to the PC computer through a serial port, and the PC computer analyzes and calculates the effective data and generates a force-displacement curve and a data document. The invention has high result precision, simple structure and simple and convenient operation.

Description

Muscle tension tester and muscle tension testing method

Technical Field

The invention relates to the technical field of skin muscle tension measurement, in particular to a muscle tension tester and a muscle tension testing method.

Background

Muscles are important components of human bodies, various physiological activities of human bodies need to be realized by participation of the muscles, and damage or diseases of the muscles can seriously affect normal lives of the human bodies. Muscle tension abnormality is a common manifestation of many nerve and muscle diseases, and muscle tension evaluation is important for making a treatment plan and evaluating treatment effect.

Muscle tone refers to the resistance felt by an active limb or by pressing against a muscle, resulting from the physical properties of the tissue, the elasticity within the muscle or connective tissue, reflex muscle contractions, and the like. Pathological changes on nerve-muscle reflex arcs, contracture of tendons, stiffness of joints and the like all affect the examination result of muscle tension, and the muscle tension detection is carried out in a warm environment and a comfortable position, so that a tested person can relax as much as possible.

The most common clinical method for evaluating muscle tone is to modify the Ashworth scale, which is simple and easy to implement, but the results are greatly influenced by the subjective condition of the testers. The isokinetic movement tester method can objectively and quantitatively evaluate the spasm, but cannot be widely applied clinically due to the complex operation and the large equipment. The muscle tension assessment is based on the pinching of the tested muscle, and the muscle tension is sensed by the experience and judgment of the tested muscle, and the method is also greatly influenced by the subjectivity of the tested person and has no uniform standard.

With the progress of the technology, new devices for detecting muscular tension have been developed, such as those named "a myotension measuring instrument" (publication No. CN 203776916U), "an upper limb myotension measuring device" (publication No. CN 104622848 a), "a myotension detecting apparatus and system" (publication No. CN 204147049U), a myotension measuring device (publication No. CN 202426537U), "a myotension detection analyzing apparatus and detecting method" (publication No. CN 1077026 a), "a quantitative foot myotension detector" (publication No. CN 201710367U), a skin myotension measuring device (publication No. CN 102125436 a), a dystonia detector (publication No. CN 106974664A), etc., which, although the accuracy of the myotension detection is improved and the subjectivity of the detection result is reduced, however, the prior art including the above-mentioned disclosures have some disadvantages. For example, the "upper limb muscle tension measuring device", the "foot muscle tension quantitative detector" and the "muscle tension detecting device and system" can only measure special parts such as limbs or feet, and have the disadvantages of insufficient measuring precision, complicated operation and inconvenient application; although improvements are made to a muscle tension measuring instrument, a muscle tension measuring device, a muscle tension detection and analysis device and a detection method, the measuring device is complex and high in cost, and the requirements on measuring personnel are high, and improvements are needed.

Disclosure of Invention

In order to solve the problems, the invention provides a muscle tension tester which is simple in structure, high in result precision and simple and convenient to operate.

The invention provides a muscle tension tester which comprises a muscle tension testing handle, a control module and a PC computer. The muscle tension test handle comprises a displacement detection element, a pressure deformation element and a skin contact element, wherein when a preset pressing force acts, the pressure deformation element has a deformation amount, the skin contact element outputs the preset pressure to the surface of the skin of the muscle to enable the muscle to have a relative displacement amount, and the displacement detection element is provided with a circuit module which detects the deformation amount and the relative displacement amount and converts the deformation amount and the relative displacement amount into a voltage signal to be output. The control module is connected with the circuit module. The control module is connected with the PC computer through a serial port. The control module is used for acquiring a voltage signal output by the circuit module, converting the real-time voltage signal into a digital signal, intercepting effective data according to a calibrated numerical range and then transmitting the effective data to the PC computer through a serial port, and the PC computer is used for analyzing and calculating the effective data and generating a force-displacement curve and a data document.

Illustratively, the PC computer is provided with a comparison module, the comparison module compares the effective data after analysis and calculation with a preset force value and transmits the comparison result to the control module, and the control module collects or stops collecting the voltage signal output by the circuit module based on the comparison result.

Illustratively, the muscle tension test handle further comprises a main body housing and a base member, the displacement detecting member is disposed in the main body housing, the pressure-deformation member is connected to an upper end of the displacement detecting member, the skin contact member is connected to a lower end of the displacement detecting member, and the base member is connected to a lower end of the main body housing; when the predetermined pressing force acts, the pressure deformation element moves in the axial direction of the main body housing relative to the displacement detection element by the deformation amount, and the displacement detection element moves in the axial direction of the main body housing relative to the base element by the relative displacement amount.

Illustratively, the displacement detecting element includes a mounting post having an upper mounting surface, a lower mounting surface, a front mounting surface, a rear mounting surface, a left mounting surface, and a right mounting surface, the circuit module includes a first signal processing board, a second signal processing board, a first sensor, a second sensor, a light emitting strip, and a light signal receiving sheet, the first sensor and the second sensor are respectively disposed on the upper mounting surface and the lower mounting surface, the first signal processing board and the second signal processing board are respectively disposed on the front mounting surface and the rear mounting surface, and the light emitting strip and the light signal receiving sheet are respectively disposed on the left mounting surface and the right mounting surface.

Exemplarily, the mounting post is provided with an axial limiting groove extending upwards from the lower mounting surface of the mounting post, the main body housing is provided with a transverse through hole corresponding to the axial limiting groove, and the transverse through hole is connected with the axial limiting groove through a limiting pin.

Illustratively, the mounting post is provided with a first accommodating rail and a second accommodating rail, the first accommodating rail extends downwards from the upper mounting surface along the central axis of the mounting post, the second accommodating rail extends upwards from the lower mounting surface along the central axis of the mounting post, and the coaxiality tolerance of the first accommodating rail and the second accommodating rail is not more than 0.03 mm.

Illustratively, the pressure-deformation element includes:

the upper shell is fixedly connected to the upper end of the main body shell;

one end of the cylindrical rod is connected to the upper shell, and the other end of the cylindrical rod is connected with the first accommodating track in a sliding mode; and

and the force measuring spring is arranged between the upper shell and the mounting column and wound on the cylindrical rod.

Exemplarily, the skin contact element is connected to the lower end of the displacement detection element by the pressure transmission element.

Illustratively, the pressure transmission element is a hollow loop bar, and a guide groove is formed on the bar wall of the hollow loop bar and extends downwards from the upper end of the hollow loop bar.

Illustratively, the base element comprises:

a base having a through hole therethrough for the skin contacting element to pass through;

the sleeve is fixedly connected with the base and sleeved outside the hollow loop bar; and

one end of the limiting rod is fixedly connected with the sleeve, and the other end of the limiting rod is connected with the second accommodating track in a sliding manner;

one end of the limiting rod connected with the sleeve is further connected with a cross rod, and two ends of the cross rod are located in the guide grooves.

Illustratively, a return spring is arranged in the hollow loop bar, one end of the return spring is connected with the cross bar, and the other end of the return spring is connected with the skin contact element.

Illustratively, the skin contacting element comprises:

a circular skin contact body having a skin contacting face and a connecting face opposite the skin contacting face; and

the spring hanging column is convexly arranged on the connecting surface;

the reset spring is a tension spring, and one end of the tension spring is hung on the spring hanging column.

The invention further provides a muscle tension testing method, which is used for testing the muscle tension by the muscle tension tester and comprises the following steps:

s100, enabling a muscle tension test handle to be perpendicular to the position of a tested muscle and applying pressing force;

s200, detecting the deformation quantity of the pressure deformation element under the action of the pressing force and the relative displacement quantity of muscles under the action of the pressing force by a circuit module of the displacement detection element, and converting the deformation quantity and the relative displacement quantity into voltage signals to be output;

s300, the control module collects the voltage signal output by the circuit module, converts the real-time voltage signal into a digital signal, intercepts effective data according to a calibrated numerical range and transmits the effective data to a PC (personal computer) through a serial port;

s400, the PC computer analyzes and calculates the effective data and generates a force-displacement curve and a data document, and the quantized muscle tension degree is obtained through the curve slope of the force-displacement ratio.

Exemplarily, in the step S400, a step S402 is further included: comparing the effective data after analysis and calculation with a preset force value, and continuing to the step S300 when the effective data is smaller than the preset force value; when the valid data is equal to the predetermined force value, step S500 is performed: the control module stops collecting the voltage signal output by the circuit module.

According to the muscle tension tester and the muscle tension testing method, on one hand, the adopted muscle tension testing handle simultaneously collects dynamic displacement differences related to pressing force and displacement through the displacement detecting element; on the other hand, the data is sampled and processed by the control module, is communicated with an upper computer (PC), and is transmitted in real time, and finally, the data is analyzed, calculated and output by the PC to quantized muscle state or tissue state characteristic parameters; the wire rod interference-caused error can be reduced, the result precision is high, the structure is simple, and the operation is simple and convenient.

Drawings

The above and other objects, features and advantages of the present invention will become more apparent by describing in more detail embodiments of the present invention with reference to the attached drawings. The accompanying drawings are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings, like reference numbers generally represent like parts or steps.

FIG. 1 is a block diagram of a muscle tension tester according to an embodiment of the present invention;

FIG. 2 is a perspective view of a muscle tone test handle according to an embodiment of the present invention;

FIG. 3 is an exploded view of the muscle tone test handle shown in FIG. 2;

FIG. 4 is a top view of the muscle tone test handle of FIG. 2;

FIG. 5 is a sectional view A-A of FIG. 4;

FIG. 6 is a cross-sectional view B-B of FIG. 4;

fig. 7 is a block diagram of a circuit block of a displacement sensing element of a muscle tension testing handle according to an embodiment of the present invention.

Wherein the reference symbols are

100-muscle tension test handle

110-main body case

111-transverse via

112-limit pin

113-signal line outlet

120-displacement detecting element

121-mounting post

1201-positioning step

1202-threaded connection

1211-limit groove

1212-first containing track

1213-second accommodation track

1214-Upper mounting surface

1215-lower mounting face

1216-front mounting surface

1217-rear mounting surface

1218-left mounting surface

1219-Right mounting surface

122-circuit module

1221 first Signal processing Board

1222-second signal processing board

1223-first sensor

1224-second sensor

1225-Lighting Bar

1226-optical signal receiving sheet

130-pressure-deformation element

131-upper shell

1311-mounting hole

1312-attachment screw

132-cylindrical rod

133-force measuring spring

140-skin contact element

141-circular skin contact body

1411 skin contact surface

1412 connecting surface

142-spring hanging column

150-base element

151-base

1511-Via hole

152-sleeve

153-stop lever

154-Cross Bar

160-pressure transmission element

161-guide groove

162-connecting thread segment

170-return spring

200-control Module

300-PC computer

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, exemplary embodiments according to the present invention will be described in detail below with reference to the accompanying drawings. It is to be understood that the described embodiments are merely a subset of embodiments of the invention and not all embodiments of the invention, with the understanding that the invention is not limited to the example embodiments described herein. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the invention described herein without inventive step, shall fall within the scope of protection of the invention.

As shown in fig. 1, with combined reference to fig. 3 and 7, the muscle tension tester includes a muscle tension testing handle 100, a control module 200, and a PC computer 300. The muscle tension test handle 100 includes a displacement detecting element 120, a pressure deformation element 130, and a skin contact element 140, wherein the pressure deformation element 130 has a deformation amount when a predetermined pressing force is applied, the skin contact element 140 outputs a predetermined pressure to the skin surface of the muscle to provide a relative displacement amount to the muscle, and the displacement detecting element 120 has a circuit module 122 for detecting the deformation amount and the relative displacement amount and converting the deformation amount and the relative displacement amount into a voltage signal to be output. The control module 200 is connected to the circuit module 122. The control module 200 is connected to the PC computer 300 via a serial port. The control module 200 is configured to collect a voltage signal output by the circuit module 122, convert a real-time voltage signal into a digital signal, intercept valid data according to a calibrated numerical range, and transmit the digital signal to the PC computer 300 through a serial port, and the PC computer 300 is configured to analyze and calculate the valid data to generate a "force-displacement" curve and a data document.

In the embodiment of the present invention, the PC 300 has a comparing module (not shown in the figure), the comparing module compares the effective data after the analysis and calculation with a predetermined force value, and transmits the comparison result to the control module 200, and the control module 200 collects or stops collecting the voltage signal output by the circuit module based on the comparison result.

As shown in fig. 2 to 7, the muscle tension test handle 100 includes a body case 110, a displacement detecting member 120, a pressure-deforming member 130, a skin contact member 140, and a base member 150. The displacement detecting element 120 is disposed inside the main body case 110. The pressure-varying element 130 is attached to the upper end of the displacement sensing element 120. The skin contact member 140 is attached to the lower end of the displacement sensing member 120. The base member 150 is attached to the lower end of the main body case 110. Wherein the pressure-deformation element 130 has a deformation amount in the axial direction of the main body housing 110 with respect to the displacement detecting element 120 at a predetermined pressing force, the skin contact element 140 outputs the predetermined pressing force to the muscle skin surface, and the displacement detecting element 120 has a relative displacement amount in the axial direction of the main body housing 110 with respect to the base element 150; the displacement detecting element 120 has a circuit module 122 that detects the amount of deformation and the amount of relative displacement and converts the amount of deformation and the amount of relative displacement into a voltage signal to be output.

When the invention is used, a user holds the main body shell 110 by hand and slowly applies a certain pressing force to muscles downwards and vertically, in the process, the skin contact element 140 is pressed in the direction of the muscles, the displacement detection element 120 detects the pressing force applied to the muscles and measures the displacement value generated by the muscles under the action of the pressure, and the pressing force and the displacement value are output by acquiring the dynamic displacement difference related to the pressing force and the displacement value through the displacement detection element and converting the dynamic displacement difference into a voltage signal, so that the invention is not influenced by the main body shell 110 and the base element 150, has high measurement precision, simple structure and convenient operation.

The main body case 110 is mainly used for accommodating the displacement detecting element 120, in order to accommodate the displacement detecting element 120, the main body case 110 has an accommodating cavity, and a housing wall of the main body case 110 is provided with a signal line outlet 113 for a signal line of the displacement detecting element 120 to pass through.

Specifically, referring to fig. 3 and 7 in combination, the displacement detecting element 120 includes a mounting post 121, the mounting post 121 having an upper mounting surface 1214, a lower mounting surface 1215, a front mounting surface 1216, a rear mounting surface 1217, a left mounting surface 1218, and a right mounting surface 1219, the circuit module 122 including a first signal processing board 1221, a second signal processing board 1222, a first sensor 1223, a second sensor 1224, a light emitting strip 1225, and a light signal receiving sheet 1226, the first sensor 1223 and the second sensor 1224 being disposed on the upper mounting surface 1214 and the lower mounting surface 1215, respectively, the first signal processing board 1221 and the second signal processing board 1222 being disposed on the front mounting surface 1216 and the rear mounting surface 1217, respectively, the light emitting strip 1225 and the light signal receiving sheet 1226 being disposed on the left 1218 mounting surface and the right mounting surface 1219, respectively. The light emitting strip 1225 is used to provide a light source, the light signal receiving sheet 1226 receives a light signal emitted from the light emitting strip 1225, the first sensor 1223 and the second sensor 1224 may employ PSD position sensors, and the first signal processing board 1221 and the second signal processing board 1222 perform fluid pressure conversion, amplification, calculation, and output on the first sensor 1223 and the second sensor 1224, respectively. It should be understood that the circuit module 122 further has signal lines (not shown) for outputting the voltage signals processed by the first signal processing board 1221 and the second signal processing board 1222.

In the embodiment not shown, the first signal processing board 1221, the second signal processing board 1222, the first sensor 1223, the second sensor 1224, the light emitting bar 1225, and the light signal receiving sheet 1226 are not limited to this, and any board may be used as long as the board is mounted on the mounting post 121 and can acquire a dynamic displacement difference related to the pressing force and the displacement value.

In the embodiment of the present invention, the mounting post 121 has an axial position-limiting groove 1211 extending upward from the lower mounting surface of the mounting post 121, the main body housing 110 has a transverse through hole 111 corresponding to the axial position-limiting groove 1211, and the transverse through hole 111 is connected to the axial position-limiting groove 1211 through a position-limiting pin 112. Relative rotation between the mounting post 121 and the main body housing 110 is not possible in the circumferential direction but relative axial movement is possible based on the engagement of the stopper pin 112 with the axial stopper groove 1211.

In the embodiment of the present invention, the mounting post 121 is further provided with a first receiving rail 1212 and a second receiving rail 1213, the first receiving rail 1212 extends downward from the upper mounting surface 1214 along the central axis of the mounting post 121, the second receiving rail 1213 extends upward from the lower mounting surface 1215 along the central axis of the mounting post 121, and the coaxiality tolerance of the first receiving rail 1212 and the second receiving rail 1213 is not greater than 0.03 mm. It is easily conceived that the first receiving rail 1212 and the second receiving rail 1213 cannot pass through for the purpose of receiving.

In the embodiment of the present invention, the pressure-varying element 130 includes an upper housing 131, a cylindrical rod 132, and a load spring 133. The upper case 131 is fixedly coupled to an upper end of the main body case 110, and specifically, the upper case 131 has a mounting hole 1311, and a coupling screw 1312 is fixed to the main body case 110 through the mounting hole 1311, that is, the upper case 131 is fixedly coupled to the main body case 110 by the coupling screw 1312. One end of the cylindrical rod 132 is connected to the upper housing 131, and the other end is slidably connected to the first receiving rail 1312, and a clearance fit may be formed between the cylindrical rod 132 and the first receiving rail 1312, so that the cylindrical rod 132 can axially slide on the first receiving rail 1312. The force measuring spring 133 is arranged between the upper housing 131 and the mounting column 121 and wound on the cylindrical rod 132, specifically, the mounting column 121 is provided with a positioning step 1201, the force measuring spring 133 is a compression spring, and the compression spring is arranged between the lower end surface of the upper housing 131 and the positioning step 1201, so that the upper end of the force measuring spring 133 can move axially along with the cylindrical rod 132, and the movement amount of the force measuring spring 133 in the radial direction can be almost ignored.

In an embodiment of the present invention, the skin contact element 140 is connected to the lower end of the displacement detecting element 120 through the pressure transmitting element 160. Specifically, the pressure transmission element 160 is a hollow sleeve rod, the hollow sleeve rod is fixedly connected with the mounting column 121, in order to realize the fixed connection between the hollow sleeve and the mounting column 121, the hollow sleeve rod is provided with a connecting threaded section 162, the lower end of the mounting column 121 is provided with a threaded connection part 1202, and the connecting threaded section 162 is in threaded connection with the threaded connection part 1202; the rod wall of the hollow loop bar is also provided with a guide groove 161, and the guide groove 161 extends downwards from the upper end of the hollow loop bar. The pressure transfer element 160 functions not only to transfer a pressing force to the skin contact element 140 but also to provide a limit to the relative movement between the displacement sensing element 120 and the base element 150.

In an embodiment of the present invention, the base element 150 includes a base 151, a sleeve 152, and a stopper 153. The base 151 is provided with a through hole 1511 for the skin contact element 140 to pass through, the sleeve 152 is fixedly connected with the base 151, the sleeve 152 is sleeved outside the hollow loop bar, one end of the limiting rod 153 is fixedly connected with the sleeve 152 through a connecting screw, and the other end is slidably connected with the second accommodating track 1213, specifically, the main body shell 110 is sleeved outside the sleeve 152 and can slide up and down relative to the sleeve 152; the end of the limiting rod 153 connected with the sleeve 152 can be connected with a cross rod 154, two ends of the cross rod 154 are located in the guide grooves 161, the cross rod 154 is fixedly connected with the sleeve 152 through a connecting screw, and one end of the limiting rod 153, which is far away from the cross rod 154, forms clearance fit with the second accommodating rail 1213, so that when a preset pressing force acts, the mounting column 121 moves downwards along with the axial direction of the main body shell 110, and the limiting rod 153 and the mounting column 121 generate relative displacement change. Illustratively, the base 151 may be a plexiglass ring that may be secured with the sleeve 152 by an interference fit.

In an embodiment of the present invention, a return spring 170 is disposed within the hollow stem, and one end of the return spring 170 is connected to the cross bar 154 and the other end is connected to the skin contact element 140.

In an embodiment of the present invention, the skin contact element 140 comprises a circular skin contact 141 and a spring hanging post 142, the circular skin contact 141 having a skin contact surface 1411 and a connection surface 1412 opposite the skin contact surface 1411; the spring hanging columns 142 are arranged on the connecting surface 1412 in a protruding mode. The return spring 170 is a tension spring, one end of the tension spring 170 is hung on the spring hanging column 142, and the other end is hung on the cross bar 154. When the preset pressing force acts, the mounting column 121 moves axially downwards to drive the pressure transmission element 160 and further drive the skin contact element 140, so that the circular skin contact body 141 is pressed in the direction of muscles, and due to the arrangement of the circular skin contact body 141, the circular skin contact body 141 is in surface contact with the skin, and compared with a measuring head in point contact, the measuring head is less affected by the surface state of the skin, the stress consistency of a measuring surface can be better ensured, and the measuring precision is improved.

When the muscle tension test handle 100 of the invention is used, a user holds the main body housing 110 and slowly applies a certain pressing force to muscles vertically downwards, in the process, the mounting column 121 moves axially downwards to drive the pressure transmission element 160 and further the skin contact element 140, so that the circular skin contact body 141 is pressed in towards the muscles, and the applied pressing force is transmitted to the force measuring spring 133 through the pressure transmission element 160 and the mounting column 121, at this time, one of the signal processing boards and one sensor (such as the first sensor 1223 and the first signal processing board 1221) of the circuit module 122 senses the relative displacement change (the relative displacement change corresponds to the deformation amount of the force measuring spring 133) between the cylindrical rod 132 and the mounting column 121, and the pressure value born by the force measuring spring 133, namely the force in the "force-displacement" in the following text, can be obtained through the deformation amount of the force measuring spring 133 and converted into a voltage signal output, so that the control module 200 converts the real-time voltage analog signal into a digital signal and intercepts the measured effective voltage signal data according to a data range calibrated in advance; meanwhile, the base 151 is still fixed on the skin surface and remains stationary, so that an axial relative movement is generated between the sleeve 152 and the limiting rod 153 and the mounting post 121, one of the signal processing boards and one of the sensors (such as the second sensor 1224 and the second signal processing board 1222) of the circuit module 122 senses the relative displacement change (which can be referred to as "displacement" in "force-displacement" hereinafter) between the limiting rod 153 and the mounting post 121 and converts the relative displacement change into a voltage signal output, so that the control module 200 converts the real-time voltage analog signal into a digital signal and intercepts the effective voltage signal data of this measurement according to a data range calibrated in advance; the control module 200 processes the collected force-displacement signals of the muscles, transmits the processed signals to the PC 300 through serial port communication, and generates force-displacement curves and related data documents of the muscles after the processing of the built-in software. When a data test is completed, the muscle tension test handle 100 is slightly lifted, the skin contact element 140 is separated from the skin surface, the base 151, the sleeve 152 and the limiting rod 153 are restored to the initial state under the action of gravity and the return spring 170, and the guide groove 161 can play a role in guiding and limiting during the restoration process.

In the muscle tension tester of the present invention, the control module 200 is independent of the PC computer 300, and can also be integrated with the host computer of the PC computer 300.

When the control module 200 is integrated on the host of the PC computer 300, the muscle tension testing handle 100 can be connected to the PC computer 300 through a data line, the host of the PC computer 300 provides power for the circuit module 122 of the muscle tension testing handle 100, the data detected by the circuit module 122 is transmitted to the control module 200 in the host of the PC computer 300 through the data line (the control module 200 can adopt an STM series single chip board), the control module 200 selects effective signals by sampling and filtering the data according to a certain frequency, and transmits the data to a serial port after retaining three bits, and uploads the data to the PC computer 300 through the serial port, so that the PC computer 300 collects the data in real time for further analysis, filtering, processing, extraction and display, and meanwhile, the PC computer 300 can communicate with the control module 200 (namely, a single chip processing board) through commands, which comprises: starting and stopping acquisition, inquiring equipment number and judging state.

The measuring process of the muscle tension tester comprises the following steps: after all connections are ready, the muscle belly is pressed vertically by the muscle tension test handle 100, at which time the inner core (i.e., the force measuring part) of the muscle tension test handle 100 is pressed down all the time, the circular skin contact 141 at the lower end of the muscle tension test handle 100 is held on the skin surface, and a relative displacement change occurs between the cylindrical rod 132 and the mounting post 121, which corresponds to the "force"; meanwhile, the relative displacement change between the limiting rod 153 and the mounting column 121 corresponds to the displacement, and due to the arrangement of the comparison module, the invention can be set to acquire the change relation between the force and the displacement in the process of gradually applying the force from 0-2kg in the pressing process, and when the force application reaches 2kg, the measurement is finished.

When the PC computer 300 analyzes and calculates the effective data and generates a "force-displacement" curve and a data file, it may extract the effective data from the obtained data, take the data from which the force application starts until the force value is equal to 2kg, then filter the data, automatically replace the jump data to smooth data, then compare the data with the calibration displacement and force data to obtain the displacement value corresponding to the current force, then generate a corresponding curve according to the data, and calculate the area under the curve, the maximum displacement value, and the standard deviation of the curve. And carrying out mean value calculation on all the data according to the measured group data to obtain the final data measured at the part.

In order to realize muscle tension measurement, the muscle tension test can be carried out by the muscle tension tester, which comprises the following steps:

In conclusion, the muscle tension tester provided by the invention has the advantages that on one hand, the adopted muscle tension testing handle simultaneously collects dynamic displacement differences related to pressing force and displacement through the displacement detection element; on the other hand, the data is sampled and processed by the control module, is communicated with an upper computer (PC), and is transmitted in real time, and finally, the data is analyzed, calculated and output by the PC to quantized muscle state or tissue state characteristic parameters; the wire rod interference-caused error can be reduced, the result precision is high, the structure is simple, and the operation is simple and convenient.

Moreover, the muscle tension tester also has the following advantages:

1. the muscle tension change value and the muscle tension change characteristics can be visually reflected, and the influence of human subjective factors on the measurement result is avoided;

2. the tension values of a plurality of muscle parts of a human body can be measured, and the tension change of the muscle of the part can be tracked;

3. when the tester and the testing method are used for testing the muscle tension, the muscle at the part can be fully contracted and relaxed through specific actions, so that the result is more accurate.

In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "above, below", left, right and the like are generally based on the orientation or positional relationship shown in the drawings only for the convenience of description of the present invention and simplification of description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted as limiting the scope of the present invention.

The above description is only for the specific embodiment of the present invention or the description thereof, and the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and the changes or substitutions should be covered within the protection scope of the present invention. The protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A muscle tension tester, comprising:

a muscle tension test handle including a displacement detecting element, a pressure-deforming element and a skin contact element, the pressure-deforming element having a deformation amount when a predetermined pressing force is applied, the skin contact element outputting the predetermined pressure to a skin surface of a muscle to cause the muscle to have a relative displacement amount, the displacement detecting element having a circuit module detecting the deformation amount and the relative displacement amount and converting the deformation amount and the relative displacement amount into a voltage signal to be output;

the control module is connected with the circuit module; and

the control module is connected with the PC computer through a serial port;

the control module is used for acquiring a voltage signal output by the circuit module, converting the real-time voltage signal into a digital signal, intercepting effective data according to a calibrated numerical range and then transmitting the effective data to the PC computer through a serial port, and the PC computer is used for analyzing and calculating the effective data and generating a force-displacement curve and a data document.

2. The muscle tension tester as claimed in claim 1, wherein the PC computer has a comparison module, the comparison module compares the effective data after analysis and calculation with a predetermined force value and transmits the comparison result to the control module, and the control module collects or stops collecting the voltage signal output by the circuit module based on the comparison result.

3. The muscle tension tester as claimed in claim 1, wherein the muscle tension testing handle further comprises a main body housing and a base member, the displacement detecting member is disposed in the main body housing, the pressure-deforming member is connected to an upper end of the displacement detecting member, the skin contact member is connected to a lower end of the displacement detecting member, and the base member is connected to a lower end of the main body housing; when the predetermined pressing force acts, the pressure deformation element moves in the axial direction of the main body housing relative to the displacement detection element by the deformation amount, and the displacement detection element moves in the axial direction of the main body housing relative to the base element by the relative displacement amount.

4. The muscle tension tester as claimed in claim 3, wherein the displacement detecting element comprises a mounting post having an upper mounting surface, a lower mounting surface, a front mounting surface, a rear mounting surface, a left mounting surface and a right mounting surface, the circuit module comprises a first signal processing board, a second signal processing board, a first sensor, a second sensor, a light emitting strip and a light signal receiving sheet, the first sensor and the second sensor are respectively provided on the upper mounting surface and the lower mounting surface, the first signal processing board and the second signal processing board are respectively provided on the front mounting surface and the rear mounting surface, and the light emitting strip and the light signal receiving sheet are respectively provided on the left mounting surface and the right mounting surface.

5. The muscle tension tester as claimed in claim 4, wherein the mounting post has an axial limiting groove extending upward from a lower mounting surface of the mounting post, the main body housing has a transverse through hole corresponding to the axial limiting groove, and the transverse through hole is connected to the axial limiting groove by a limiting pin.

6. The muscle tension tester as claimed in claim 4, wherein the mounting post is provided with a first receiving track and a second receiving track, the first receiving track extends downwards from the upper mounting surface along the central axis of the mounting post, the second receiving track extends upwards from the lower mounting surface along the central axis of the mounting post, and the coaxiality tolerance of the first receiving track and the second receiving track is not more than 0.03 mm.

7. The muscle tension tester as claimed in claim 6, wherein the pressure-deformation element comprises:

the upper shell is fixedly connected to the upper end of the main body shell;

8. The muscle tension tester according to claim 6 or 7, further comprising a pressure transmission member through which the skin contact member is connected to a lower end of the displacement detection member.

9. A muscle tone test method characterized by performing a muscle tone test by the muscle tone tester according to any one of claims 1 to 8, comprising the steps of:

10. The muscle tone test method as set forth in claim 9, wherein in the step S400, further comprising the step S402 of: comparing the effective data after analysis and calculation with a preset force value, and continuing to the step S300 when the effective data is smaller than the preset force value; when the valid data is equal to the predetermined force value, step S500 is performed: the control module stops collecting the voltage signal output by the circuit module.