JP3195705U - Device applied to soft / hardness sensing in biological tissues - Google Patents

Abstract

An object of the present invention is to provide a device that can detect softness / hardness of biological tissue and that can be applied to softness / hardness detection of biological tissue. In an apparatus applied to tissue soft / hardness sensing in a living body, a firing mechanism 1 includes an outer casing 2, a lid 3, a bottom lid 4, a drive assembly, a buffer assembly, a spring tube 7, a push bar 71, and a sensing assembly 8. Prepare. The drive assembly includes a firing spring 55 and a return spring 53, and the two springs 55 and 53 have different degrees of rigidity, and thus constitute a reciprocating structure of the firing device. Thereby, the sensing assembly 8 of the firing mechanism 1 can compress the firing spring 55 again to the length of the firing through the elasticity of the restoring spring 53 after the firing. Thus, the restoring operation is completed with a single driving point, and the firing operation can be performed with one hand, thus simplifying the operation of the doctor and improving the convenience and efficiency. [Selection] Figure 2

Description

  The present invention relates to a sensing device, and more particularly to an apparatus applied to endoscopic accessories and applied to biological tissue soft / hardness sensing that includes a sensing assembly and can detect softness / hardness of biological tissue.

Tumors are generally often found by touching or observing with the naked eye.
For the inspection, a medical device such as an ultrasonic wave or an endoscope is used.
An endoscope is a device in which a tube equipped with an imaging / light source device is inserted into a living body, and information on the surface of a body organ tissue is obtained by an external display. A tissue section can be collected and a pathological examination can be performed.
However, endoscopes can only provide information on the tissue surface, and there are difficulties in observing and judging tumors in subcutaneous tissues.

Normally, changes in tissue softness / hardness occur as the lesion develops.
For example, a subcutaneous tumor tissue has a hardness different from that of a normal tissue, but in examination, it is necessary to accurately obtain tumor information using an endoscope or an ultrasonic wave.
However, endoscopes and ultrasonic waves are expensive and are not widely used in general medical institutions.
Therefore, if it is possible to measure the elasticity of tissue in a living organism with a simpler method, it is possible to help diagnose whether there is a subcutaneous tumor.

Patent Document 1 discloses a “biological measurement device”.
The biometric apparatus includes a contact portion.
The contact portion includes a first contact surface that can come into contact with the organism, and can apply pressure to the organism.
An auxiliary part is installed outside the contact part.
The auxiliary portion includes a second contact surface that can contact the organism.
The second contact surface can reciprocate between planar positions, and the second contact surface contracts to the position of the first contact surface.
Thereby, a 1st contact surface and a 2nd contact surface are located in the same plane.
Furthermore, the pressure applied to the contact part and the auxiliary part is measured by installing the first pressure sensor.
The measuring device includes a support portion that supports an auxiliary portion. Either the auxiliary portion or the support portion forms a first long tank and extends in a reciprocating direction of the second contact surface.
Subsequently, the second long tank is formed in either the auxiliary part or the support part, and is extended in the vertical reciprocating direction of the first long tank.
In addition, protrusions are formed on the other auxiliary parts and support parts.
A protrusion part is installed in a 1st long tank or a 2nd long tank.
Thus, the auxiliary portion is fixed through the fixing mechanism, and the second contact surface maintains the contracted position.
This makes it possible to measure the hardness and pain of muscle tissue with a single facility.

Patent Document 2 discloses "apparatus used for measuring material consistency or hardness".
The apparatus comprises a cylindrical case.
In the case, a spring that performs a predetermined extension can be installed, and the compression state can be adjusted using a bolt.
The spring pushes the piston and slides it into the material.
A probe is fixed to the piston end.
The movement recording in the cylindrical case of the piston provides a continuous output voltage with a conventional movement sensor.
Thereby, the touch head moves in direct proportion from the basic position, the case is stopped by the bolt, and the stroke distance of the piston is limited.
Thus, the reference position described above can be limited.
The device is used for testing materials with variable pressure and can perfectly reproduce the hardness measurement results of elastic materials (such as skin).

Patent Document 3 discloses a “frequency deviation inspection circuit and a measurement apparatus using the frequency deviation inspection circuit”.
The apparatus includes an oscillator that generates mechanical vibration and an inspection device that inspects the vibration information.
Furthermore, a feedback circuit is provided, and a feedback signal based on the vibration information is fed back to the oscillator.
Thereby, the oscillator goes to the first resonance state.
In addition, the oscillator has the center frequency of the first oscillator, and a gain change compensation circuit is installed in the feedback circuit.
The center frequency of gain change and the oscillator vibration frequency suitable for gain increase and responding to deviation are different.
When a change in frequency occurs, the oscillator moves from the first resonant state to the second resonant state.
The oscillator has a second vibration center frequency, and the device measures a deviation between the first and second oscillator center frequencies, and applies it to a hardness measurement device to determine the softness / hardness of a biological tissue (skin or viscera). It can be tested accurately.

The “device and method for sensing tissue in a living body” disclosed in Patent Document 4 is a sensor-related device for which the present inventor has applied.
It includes a sensing component that senses a tissue parameter, a control medium that controls the sensing component, and an analysis medium, and the analysis media analyzes the meaning of the parameter.
The sensing component approaches the non-measurement object, and at the same time, an external force is applied to the upper and lower ends of the sensing component.
Thereby, a contact force is generated between the soft tissue and the sensing component, a change in shape occurs, and the voltage value is read based on the amount of change in shape.
Thus, the material property related to the non-measured structure and the hardness can be estimated from the voltage value ratio or the reflected stress ratio.
However, the above proposal relates to the sensor.
Force control is very important for the sensor, so in the operation of the sensor, if a suitable firing device is not installed, the sensor is fired, brought into contact with the object to be measured, and a measured value is obtained and measured. The operation cannot be continued.

U.S. Pat. No. 8,328,730 U.S. Pat. No. 4,159,640 US Pat. No. 5,766,137 U.S. Patent No. 13 / 116,092

  However, the above-described device has drawbacks in use and needs to be improved. The cause is as follows.

  Conventional endoscopes can only provide information on the tissue surface, and most of the patent literature is only a sensor that measures the softness / hardness of the tissue, and there is no overall improvement combining the firing mechanism with the sensor. If there is a defect in the combination of the sensor and the firing mechanism, measurement data and diagnostic results will be affected.

  The present invention has been made in view of the above-mentioned problems. The first object of the present invention is to construct a reciprocating structure of the firing mechanism using two springs having different degrees of rigidity, and to provide a sensing assembly for the firing mechanism. To provide a device that can be applied to tissue tissue soft / hardness sensing that can complete repositioning operation at a single drive point after firing, can complete operation with one hand, simplify operation, and improve efficiency .

  The present invention has been made in view of the above-mentioned problems, and its second object is to reduce the noise generated during sensor vibration by measuring the sensing assembly by winding the lead wire of the sensing assembly around the core wire. It is an object of the present invention to provide an apparatus applied to soft / hardness sensing of biological tissue that can make data reading more accurate.

In the apparatus for sensing soft / hardness of biological tissue according to the present invention, the firing mechanism includes an outer casing, a lid, a bottom lid, a drive assembly, a buffer assembly, a spring tube, a push bar, and a sensing assembly.
The outer casing is a hollow tube, and an outer fitting fence is formed around it, an inner fitting is installed inside, and a fixing base is formed in the outer casing.
The lid is installed by being fitted into an outer fitting of the outer casing, and has an opening.
The bottom lid is coupled to the outer casing, forms a tube inside, forms a connecting portion on the side, and opens a through hole in the connecting portion.
The drive assembly includes a push device, a pull bar, a return spring, a trigger, and a firing spring.
The push device has a hollow tubular shape and extends an inspiration bar on both sides.
The pull bar is installed in the hollow tube of the push device.
The restoring spring is installed between the push device and the outer base.
The trigger is fixed to the pull bar, elastic support bars are formed on both sides, and the elastic support bar is used to make contact with the inner fitment of the outer casing.
The impulse spring is installed between the outer base and the trigger.
The buffer assembly includes a base, a buffer spring, a spring tube, and a push bar.
The trapezoid is installed at the outer flange end and has a through hole.
The buffer spring is installed by being fitted to the base.
The spring tube is installed in the tube of the bottom lid.
The push bar passes through the spring tube, and the front end is fixed to the trigger.
The sensing assembly is coupled to the push bar end and includes a front carrier platform, a spring conduit, a rear carrier platform, a sensor, a plurality of wires, and a waterproof layer.
A through hole is set up in the front carrier table, and a plurality of caverns are set up.
A core wire is fixed in the spring conduit.
A plurality of cavities are provided on the rear carrier base, and the conductive cavities are filled in the cavities.
The sensor is coupled to the rear carrier base.
Multiple conductors wrap around the core wire, one end is connected to the rear sensor via a hole in the rear carrier base, and the other end passes through the hole in the front carrier base and exits from the perforation to the back end. Connect to the system to perform signal reading.
The waterproof layer covers the outer periphery of the rear carrier base and the spring conduit.

By pushing the push device downward, the push device compresses the return spring, and at the same time the push bar of the push device pushes the trigger elastic support bar inward.
Thereby, the trigger and the pull bar are dropped, and the compressed state of the firing spring is released.
Moreover, at the same time as the trigger falls, the push bar is interlocked and the push bar is pushed out.
At this time, a sensing assembly coupled to the end of the push bar is used to contact the tissue to be measured.
When the trigger falls to the base body, the pulling force is buffered through a buffer spring on the base body.
When the sensing assembly senses the signal and transmits it to the backend system, it releases the push device.
As a result, the restoring spring is released from the compressed state, and the pushing device is pushed and restored, the trigger is pulled back by the pull bar, and the elastic support bar of the trigger comes into contact with the inner fitting of the outer casing.
Thus, the firing spring is in a compressed state, and at the same time, the push bar is automatically extended and restored to prepare for the next measurement operation.

  The present invention uses two springs with different degrees of rigidity to form a reciprocating structure of the firing mechanism, and after firing the sensing mechanism of the firing mechanism, the repositioning operation can be completed at a single drive point and the operation completed with one hand Can simplify operation, improve efficiency, and wrap and fix the sensing assembly lead around the core wire to reduce noise generated during sensor vibration and make measurement and data reading more accurate be able to.

1 is an exploded view according to an embodiment of the present invention. It is sectional drawing by one Embodiment of this invention. 1 is a cross-sectional view of a sensing assembly according to an embodiment of the present invention. FIG. 3 is a schematic view of connecting sensing assemblies according to an embodiment of the present invention. 1 is a three-dimensional view according to an embodiment of the present invention. It is a schematic diagram of a state in which the push device according to an embodiment of the present invention is pushed downward. It is a schematic diagram of pushing out a push bar according to an embodiment of the present invention. It is a schematic diagram of the mode of measurement by one Embodiment of this invention. FIG. 3 is a schematic view illustrating a measurement state of a sensing assembly according to an embodiment of the present invention. It is a schematic diagram of a state of pulling back a push device according to an embodiment of the present invention. It is the model of the state which completed the restoration by one Embodiment of this invention.

(One embodiment)
An apparatus applied to tissue soft / hardness sensing according to an embodiment of the present invention will be described with reference to the drawings.
As shown in FIGS. 1 and 2, an apparatus applied to tissue soft / hardness sensing in a living body includes a firing mechanism.

  The firing mechanism 1 includes an outer casing 2, a lid 3, a bottom lid 4, a drive assembly 5, a buffer assembly 6, a spring tube 7, a push bar 71, and a sensing assembly 8.

The outer casing 2 is a hollow tubular body, and an outer fitting 21 is formed around the outer casing 2 and an inner fitting 22 is installed inside.
A fixing base 23 is formed in the tube of the outer casing 2.

  The lid 3 is installed by being fitted to the outer fitting 21 of the outer casing 2 and has an opening 31.

The bottom cover 4 includes a concave tub 41 corresponding to the outer casing 2 and can be coupled to the outer casing 2, and a pipe line 42 is formed therein.
In addition, a connecting portion 43 is formed on the side of the bottom lid 4, and a through hole 431 is formed in the connecting portion 43.

The drive assembly 5 includes a push device 51, a pull bar 52, a return spring 53, a trigger 54, and a firing spring 55.
The push device 51 has a hollow tubular shape and is installed through the opening 31 of the lid 3.
In addition, on both sides of the push device 51, the trigger bar 511 is extended, and a convex wall 512 is formed in the center.
A convex block 521 is provided at the front end of the pull bar 52 and is fitted into the hollow tube of the push device 51.
The restoring spring 53 is fitted between the convex wall 512 of the push device 51 and the fixed base 23 of the outer casing 2.
The trigger 54 includes a concave tank and can be fitted and fixed to the end of the pull bar 52, and elastic support bars 541 are formed on both sides.
As a result, the trigger 54 can be brought into contact with the inner fitting 22 of the outer casing 2 by the elastic support bar 541, and the firing spring 55 is installed between the fixing base 23 of the outer casing 2 and the trigger 54.

The buffer assembly 6 includes a base body 61 and a buffer spring 62.
The base body 61 is installed at the end of the hollow tube body of the outer casing 2 and includes a through hole 611.
Moreover, a convex block 612 can be formed above the base body 61, and a buffer spring 62 can be fitted and fixed thereto.

The spring tube line 7 is installed in the tube line 42 of the bottom cover 4.
The push bar 71 is installed in the spring tube line 7, and the front end is fixed to the trigger 54.

  As shown in FIG. 3, which is a cross-sectional view of the sensing assembly of the present invention, the sensing assembly 8 is coupled to the end of the push bar 71, and includes a front carrier base 81, a spring conduit 82, a rear carrier base 83, a sensor 84, and a plurality of conductors 85. The waterproof layer 86 is provided.

The front carrier table 81 includes a perforation 811 and a plurality of holes 812.
Spring conduit 82 secures core wire 821 within the tube.
The rear carrier base 83 is provided with a plurality of holes 831, and the hole 831 is filled with a conductive silver paste 832.
The sensor 84 is coupled to the rear carrier base 83.
The conducting wire 85 is wound around the core wire 821 of the spring conduit 82 and fixed.
Thus, one end of the conductive wire 85 is connected to the sensor 84 after passing through the hole 831 of the rear carrier base 83, and the opposite end passes through the hole 812 of the front carrier base 81 and then goes out of the perforation 811 to return to the back. Connect to the end system to perform signal reading.
The waterproof layer 86 covers and covers the outer periphery of the rear carrier base 83 and the spring tube line 82.

As shown in FIGS. 1 to 3, at the time of assembly, the outer casing 2 is installed in the concave tank 41 of the bottom lid 4, and the base body 61 is installed at the outer casing 2 end.
A buffer spring 62 is fitted and installed above the base body 61.
A push bar 71 is fixed to the trigger 54.
In one embodiment of the present invention, a nut 57 is fixed to the end of the trigger 54, whereby the push bar 71 is securely fixed to the trigger 54, and the trigger 54 and the fixing base 23 of the outer casing 2 have no impact. The spring 55 is fitted and installed.

Subsequently, the front end of the outer casing 2 is installed on the push device 51, and a restoring spring 53 is installed between the convex wall 512 of the push device 51 and the fixing base 23 of the outer casing 2.
In one embodiment of the present invention, the plug 56 is fitted and installed in the hollow tube of the push device 51, and the handle cover 24 is fitted separately on the outer periphery of the outer casing 2 to achieve comfort when gripping and operating. be able to.
Further, the lid 3 is installed by being fitted to the push device 51 through the opening 31 and is fitted between the outer casing 2 and the handle cover 24.

The conducting wire 85 of the sensing assembly 8 is wound around and fixed to the core wire 821 in the spring conduit 82, whereby one end of the conducting wire 85 passes through the hole 831 of the rear carrier base 83.
In one embodiment of the present invention, the conductive wire 85 is connected to the sensor 84 by a welding method, and an adhesive layer 87 is installed at a welding position between the rear carrier base 83 and the sensor 84.
As a result, a flat surface is provided at the coupling position, and the opposite end of the conducting wire 85 goes out of the perforation 811 after passing through the hole 812 of the front carrier base 81 (see FIG. 4).
Subsequently, it enters the through hole 431 of the bottom cover 4 and is welded and fixed to the connecting portion 43. The back-end system is connected through the connecting portion 43, performs a signal reading operation, and constitutes the firing mechanism 1 (FIG. 5).

FIG. 6 is a schematic diagram showing how the push device of the present invention is pushed.
When the firing mechanism 1 is not used, the restoring spring 53 exhibits an uncompressed state, and the firing spring 55 exhibits a compressed state.
When the push device 51 is pushed downward, the trigger bars 511 on both sides advance a certain distance and then push the elastic support bars 541 on both sides of the trigger 54 inward to compress the return spring 53.
As a result, the elastic support bar 541 that was originally in contact with the inner fitting 22 is compressed and contracts to the inside, and falls downward.
At the same time, the compression state of the firing spring 55 is canceled (see FIG. 7).

The trigger 54 receives the elasticity of the firing spring 55, fires the base 61, and uses the buffer spring 62 on the base 61 to buffer the downward pulling force.
Moreover, the pull bar 52 and the push bar 71 are interlocked simultaneously with the firing.
Thus, the push bar 71 pushes the spring tube 7 (see FIG. 8) and couples it to the sensing assembly 8 at the front end of the push bar 71.
As a result, the sensor 84 goes out of the sleeve 9 and comes into contact with the tissue to be measured (see FIG. 9).
Since the conducting wire 85 of the sensing assembly 8 is wound around and fixed to the core wire 821, noise generated by vibration of the sensor 84 can be reduced.
Further, the connection part 43 (not shown) is used to connect to the back-end system, and the feedback signal of the sensor 84 is read.
If the measured biological tissue has a subcutaneous tumor, an abnormal value appears in the tissue hardness.
This is provided to the doctor and is the basis for diagnosis and discrimination.

As shown in FIG. 10, which is a schematic view of the push device of the present invention being pulled back, when the sensing assembly 8 senses a signal and transmits it to the back-end system, the user stops pushing the push device 51.
As a result, the restoring spring 53 is released from the compressed state, and pushes the push device 51 to restore the position, further interlocks the pull bar 52, and pulls the trigger 54 in its flow.
Thereby, the elastic support bar 541 of the trigger 54 contacts the inner fitting 22 of the outer casing 2 (see FIG. 11), and the firing spring 55 recovers the compressed state.
At the same time, the push bar 71 is automatically extended according to the trigger 54 and restored to prepare for the next measurement operation.

The firing mechanism 1 of the present invention constitutes its reciprocating structure through two springs having different degrees of rigidity.
Moreover, the stiffness coefficient of the firing spring 55 is larger than the stiffness coefficient of the return spring 53.
The required amount of firing force is calculated according to the Hooke's law, and after firing the sensing assembly 8 of the firing mechanism 1, the firing spring 55 is compressed again to the length of the firing through the elasticity of the return spring 53.
As a result, the repositioning operation is completed with a single driving point, and the firing operation can be performed with one hand. Thus, the operation of the doctor can be simplified, and convenience and efficiency can be improved.

  By combining the description of the above-described embodiments, the operation, use, and effects of the present invention can be fully understood. However, the embodiment described above is merely a preferred embodiment of the present invention, and is not intended to limit the scope of the utility model registration claim of the present invention. That is, all simple changes and modifications having the same effect based on the claims of the utility model registration of the present invention and the contents of the description shall fall within the scope of the present invention.

DESCRIPTION OF SYMBOLS 1 Impact mechanism 2 Outer cage 21 Outer fitting 22 Inner fitting 23 Fixing base 24 Handle cover 3 Lid body 31 Opening 4 Bottom lid 41 Concave tank 42 Pipe line 43 Connection part 431 Through-hole 5 Drive assembly 51 Push apparatus 511 Induction bar 512 Convex wall 52 Pull bar 521 Convex block 53 Restoration spring 54 Trigger 541 Elastic support bar 55 Impact spring 56 Plug 57 Nut 6 Buffer assembly 61 Base body 611 Through hole 612 Convex block 62 Buffer spring 7 Spring tube line 71 Push bar 8 Sensing assembly 81 Front carrier base 811 Perforation 812 Hole 82 Spring conduit 821 Core wire 83 Rear carrier base 831 Hole 832 Conductive silver paste 84 Sensor 85 Conductor 86 Waterproof layer 87 Adhesive layer 9 Sleeve

Claims (4)

An apparatus applied to biological tissue soft / hardness sensing includes an outer casing, a lid, a bottom lid, a drive assembly, a buffer assembly, and a sensing assembly.
The outer casing is a hollow tube, and an outer fitting is formed around the outer casing, an inner fitting is installed inside the outer casing, and a fixing base is formed in the outer casing.
The lid is installed by being fitted to an outer fitting of the outer casing, and has an opening.
The bottom lid is coupled to the outer casing, forms a tube inside, and forms a connecting portion on the side, and opens a through hole in the connecting portion;
The drive assembly comprises a push device, a pull bar, a return spring, a trigger, a trigger spring,
The push device presents a hollow tube, and on both sides, stretches the inspired bar,
The pull bar is installed in the hollow tube of the push device,
The return spring is installed between the push device and the fixed base,
The trigger is fixed to the pull bar, and on both sides, an elastic support bar is formed, and the elastic support bar makes contact with the inner fitting of the outer casing,
The firing spring is installed between the outer base fixed base and the trigger, and the stiffness coefficient of the firing spring is larger than the stiffness coefficient of the return spring,
The buffer assembly includes a base, a buffer spring, a spring tube, and a push bar.
The platform is installed at the outer end of the outer casing and includes a through hole,
The buffer spring is installed by fitting to the base body,
The spring tube line is installed in the tube line of the bottom cover,
The push bar is installed in the spring pipeline, the front end is fixed to the trigger,
The sensing assembly includes a front carrier base, a spring conduit, a rear carrier base, a sensor, a plurality of wires, and a waterproof layer, coupled to the push bar end.
In the front carrier table, a perforation is opened, a plurality of caverns are installed,
A core wire is fixed in the spring conduit,
The rear carrier base is provided with a plurality of holes, and the hole is filled with a conductive silver paste,
The sensor is coupled to the rear carrier base,
The conducting wire wraps around the core wire, one end is connected to the sensor after passing through the hole in the rear carrier base, and the other end goes out of the hole after entering the hole in the front carrier base. , Connect to back-end system, perform signal reading operation,
The waterproof layer is a device for sensing tissue softness / hardness in living organisms, characterized by covering and covering the outer circumference of the rear carrier base and the spring conduit.   The apparatus according to claim 1, wherein a handle cover is fitted on the outer periphery of the outer casing.   The apparatus according to claim 1, wherein an adhesive layer is installed at a coupling position between the sensor and the push bar.   The connecting method of the conducting wire and the back end system is such that the conducting wire that has come out of the perforation is passed through the through hole of the bottom lid and welded to the connecting portion, whereby the back end system is connected to the connecting portion. The apparatus for sensing tissue softness / hardness according to claim 1, wherein the device is connected to the body and performs a signal reading operation.

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