Endoscope stiffness measurement device and measurement method

Abstract

The present invention discloses an endoscope stiffness measuring device and a measuring method, which relate to the technical field of medical endoscopes. The endoscope stiffness measuring device comprises: a stiffness measuring structure, a conducting structure and a deformation display structure, wherein the stiffness measuring structure comprises a contact, the conducting structure comprises a conducting rope, the deformation display structure comprises a measuring piece and a measuring ring, the rear end of the contact is connected to the front end of the conducting rope, the rear end of the conducting rope is connected to the front end of the measuring ring, the conducting rope and the measuring ring are respectively connected to the measuring piece in a sliding manner, the measuring piece is provided with a scale, and an elastic element is provided between the rear end of the measuring ring and the measuring piece. The endoscope stiffness measuring device and the measuring method of the present invention can realize the measurement of the stiffness of human tissue.

Description

Technical Field

[0001] The present invention relates to the technical field of medical endoscopes, and in particular to an endoscope stiffness measuring device and a measuring method. Background Art

[0002] Endoscopic surgery is an important means of "early detection and early treatment" for natural cavity cancers such as the digestive tract, and has gradually been popularized nationwide. During the operation, doctors diagnose lesions by analyzing the color, texture, hardness and other tissue information of abnormal tissues. The narrow-band light imaging and optical magnification functions of the endoscope system can highlight the color and texture information of the tissue, which is convenient for doctors to diagnose. However, there is currently no tool that can directly judge the hardness of tissues. At present, biopsy forceps and other instruments are mostly used clinically to extend through the endoscope instrument channel, touch the suspicious lesions, and make manual judgments. The biopsy forceps themselves are flexible materials and cannot accurately transmit the stiffness information of the object. At the same time, this method has no quantitative indicators and is easily affected by the feel and experience of the operating doctor, and the misjudgment rate is relatively high. If the hardness (rigidity) of the suspected lesion tissue can be measured by an instrument device, the quantitative indicators can be used to effectively reduce the misjudgment rate, which is conducive to the discovery of early lesions and the comparative observation of the condition, and improve the accuracy of the diagnosis results in endoscopic examinations. Summary of the invention

[0003] The purpose of the present invention is to provide an endoscope stiffness measurement device and a measurement method to achieve the measurement of human tissue stiffness.

[0004] To achieve the above object, the present invention provides the following solutions:

[0005] The present invention provides an endoscope stiffness measuring device, comprising: a stiffness measuring structure, a conductive structure and a deformation display structure, wherein the stiffness measuring structure comprises a contact, the conductive structure comprises a conductive rope, the deformation display structure comprises a measuring piece and a measuring ring, the rear end of the contact is connected to the front end of the conductive rope, the rear end of the conductive rope is connected to the front end of the measuring ring, the conductive rope and the measuring ring are respectively slidably connected to the measuring piece, the measuring piece is provided with a scale, and an elastic element is provided between the rear end of the measuring ring and the measuring piece.

[0006] Preferably, the stiffness measurement structure further comprises a contact housing, and the contact and the conductive rope are respectively slidably connected to the contact housing.

[0007] Preferably, the conductive structure further includes a conductive sleeve, the conductive rope is located in the conductive sleeve, and the conductive rope is slidably connected to the conductive sleeve, the front end of the conductive sleeve is connected to the contact sleeve, and the rear end of the conductive sleeve is used to connect to the measuring piece.

[0008] Preferably, a slide groove is provided in the measuring member, the conductive rope passes through the measuring member and extends into the slide groove to be connected with the front end of the measuring ring, and the elastic element is located in the slide groove.

[0009] Preferably, the deformation display structure further comprises a pull ring, and the pull ring is connected to the rear end of the measuring member.

[0010] Preferably, the deformation display structure also includes a fastener and a nut, the conductive rope is slidably connected to the fastener, the front end of the fastener is connected to the rear end of the conductive sleeve, and the rear end of the fastener is connected to the front end of the measuring piece through the nut.

[0011] Preferably, a washer is provided between the fastener and the conductive rope.

[0012] Preferably, the conductive rope is a steel wire rope.

[0013] Preferably, the elastic element is a spring.

[0014] The present invention also provides a stiffness measurement method using the endoscope stiffness measurement device, comprising:

[0015] The contactor contacts the object to be measured, pushes the endoscope stiffness measuring device forward, and obtains the moving distance of the measuring ring through the scale on the measuring piece. , the force exerted by the elastic element F for:

[0016] ,

[0017] Then, we get:

[0018] ,

[0019] in, is the original length of the elastic element, is the length of the elastic element at zero scale, is the stiffness coefficient of the elastic element;

[0020] Due to the rigidity of the object being measured for:

[0021] ,

[0022] Then we get:

[0023] .

[0024] Compared with the prior art, the present invention has achieved the following technical effects:

[0025] The conductive rope of the present invention is used to transmit the torque of the stiffness measuring structure. The steel wire rope transmits the torque of the contact to the measuring ring, and by compressing the elastic element, the purpose of measuring the stiffness of the object being measured is achieved. The deformation size of the object being measured is displayed through the scale on the measuring piece, and the stiffness of the object being measured is then obtained. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 It is a schematic diagram of the endoscope stiffness measurement device of the present invention;

[0028] Figure 2 It is a cross-sectional view of the stiffness measurement structure of the present invention;

[0029] Figure 3 A cross-sectional view of the deformation display structure of the present invention;

[0030] Figure 4 It is an external schematic diagram of the deformation display structure of the present invention;

[0031] Figure 5 is a flow chart of the stiffness measurement method of the present invention;

[0032] In the figure: 1-stiffness measuring structure, 2-conducting structure, 3-deformation display structure; 11-contact, 12-contact housing; 21-conducting rope, 22-conducting housing; 31-fastener, 32-washer, 33-nut, 34-measuring piece, 35-measuring ring, 36-elastic element, 37-pull ring, 38-slide groove. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] The purpose of the present invention is to provide an endoscope stiffness measurement device and a measurement method to achieve the measurement of human tissue stiffness.

[0035] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0036] Embodiment 1

[0037] like Figures 1 to 4 As shown, this embodiment provides an endoscope stiffness measurement device, including: a stiffness measurement structure 1, a conductive structure 2 and a deformation display structure 3, wherein the stiffness measurement structure 1 includes a contact 11, the conductive structure 2 includes a conductive rope 21, and the deformation display structure 3 includes a measuring piece 34 and a measuring ring 35, wherein the front end of the contact 11 is used to contact the object to be measured, the rear end of the contact 11 is connected to the front end of the conductive rope 21, the rear end of the conductive rope 21 is connected to the front end of the measuring ring 35, the conductive rope 21 and the measuring ring 35 are respectively connected to the measuring piece 34 in a sliding manner, the measuring piece 34 is provided with a scale, and an elastic element 36 is provided between the rear end of the measuring ring 35 and the measuring piece 34. The conductive rope 21 is used to transmit the torque of the stiffness measurement structure 1, and the steel wire rope transmits the torque of the contact 11 to the measuring ring 35, and the purpose of measuring the stiffness of the object to be measured is achieved by pressing the elastic element 36, and the deformation size of the object to be measured is displayed by the scale on the measuring piece 34.

[0038] Specifically, in this embodiment, the conductive rope 21 is a steel wire rope, and the elastic element 36 is a spring.

[0039] In this embodiment, the stiffness measurement structure 1 further includes a contact cover 12 , which provides a protective shell and a telescopic channel for the contact 11 , and the contact 11 and the conductive rope 21 are respectively slidably connected to the contact cover 12 .

[0040] In this embodiment, the conductive structure 2 also includes a conductive jacket 22, which provides a protective shell and a telescopic channel for the wire rope. The conductive rope 21 is located in the conductive jacket 22, and the conductive rope 21 is slidably connected to the conductive jacket 22. The front end of the conductive jacket 22 is connected to the contact jacket 12, and the rear end of the conductive jacket 22 is used to connect to the front end of the fastener 31 of the measuring piece 34.

[0041] In this embodiment, a slide groove 38 is provided in the measuring member 34 , the conductive rope 21 passes through the measuring member 34 and extends into the slide groove 38 to be connected to the front end of the measuring ring 35 , and the elastic element 36 is located in the slide groove 38 .

[0042] In this embodiment, the deformation display structure 3 also includes a pull ring 37, a fastener 31 and a nut 33. The pull ring 37 is connected to the rear end of the measuring piece 34, the conductive rope 21 is slidably connected to the fastener 31, a washer 32 is arranged between the fastener 31 and the conductive rope 21, the front end of the fastener 31 is connected to the rear end of the conductive sleeve 22, and the rear end of the fastener 31 is connected to the front end of the measuring piece 34 through the nut 33.

[0043] When the endoscope stiffness measuring device of this embodiment is used, the contact 11 contacts the object to be measured (human tissue), and the force applied to the contact 11 is transmitted to the measuring ring 35 through the conductive rope 21. The measuring ring 35 slides along the axial direction of the measuring piece 34. The measuring ring 35 compresses the elastic element 36, and the moving distance of the measuring ring 35 is read through the scale on the measuring piece 34, and then the stiffness of the object to be measured is obtained through calculation.

[0044] The endoscope stiffness measuring device of this embodiment is based on the object stiffness calculation principle, that is, a known force is applied to the object, and the deformation of the object is measured to obtain the stiffness of the object. In this embodiment, an elastic element 36 (spring) is used to apply force. Within the limit of the elastic element 36, the force applied to the elastic element 36 is proportional to the deformation, and the stiffness is then obtained.

[0045] Embodiment 2

[0046] like Figure 5 As shown, this embodiment provides a stiffness measurement method using the endoscope stiffness measurement device of embodiment 1, comprising:

[0047] The endoscope stiffness measuring device enters the human body through the endoscope instrument channel, the contact 11 contacts the object to be measured (human tissue), pushes the endoscope stiffness measuring device forward, and obtains the moving distance of the measuring ring 35 through the scale on the measuring piece 34 , the force applied by the elastic element 36 F for:

[0048] ,

[0049] Then, we get:

[0050] ,

[0051] in, is the original length of the elastic element 36, is the length of the elastic element 36 at zero scale, is the stiffness coefficient of the elastic element 36;

[0052] Due to the rigidity of the object being measured for:

[0053] ,

[0054] Then we get:

[0055] .

[0056] The endoscope stiffness measuring device and method of the present invention have the following advantages:

[0057] Rapidity: The present invention adopts a purely mechanical structure for measurement, which can quickly obtain the stiffness information of human tissue, accurately and intuitively;

[0058] Simple operation: The operation part adopts ergonomic design, which simplifies the measurement process, and adopts scale design, which can directly observe the results;

[0059] High-precision measurement: Provide accurate tissue stiffness measurement data through high-precision spring measurement;

[0060] Cost-effectiveness: The device is simple in design, easy to sterilize, reusable, and reduces costs;

[0061] Wide range of applications: can be applied to a variety of medical scenarios, including but not limited to examination and surgery of the digestive tract, respiratory tract, etc.;

[0062] Promoting disease diagnosis and treatment: By measuring the stiffness of human tissue, it can help doctors better identify diseased tissue, thereby improving the accuracy of disease diagnosis and guiding more precise treatment.

[0063] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A stiffness measurement method using an endoscope stiffness measurement device, characterized in that: The endoscope stiffness measuring device comprises: a stiffness measuring structure, a conducting structure and a deformation display structure, wherein the stiffness measuring structure comprises a contact, the conducting structure comprises a conducting rope, the deformation display structure comprises a measuring piece and a measuring ring, the rear end of the contact is connected to the front end of the conducting rope, the rear end of the conducting rope is connected to the front end of the measuring ring, the conducting rope and the measuring ring are respectively connected to the measuring piece in a sliding manner, the measuring piece is provided with a scale, and an elastic element is provided between the rear end of the measuring ring and the measuring piece; The stiffness measurement method using the endoscopic stiffness measurement device includes: The contactor contacts the object to be measured, pushing the endoscope stiffness measuring device forward, and the moving distance of the measuring ring is obtained through the scale on the measuring piece. , the force exerted by the elastic element F for: ， Then, we get: ， in, is the original length of the elastic element, is the length of the elastic element at zero scale, is the stiffness coefficient of the elastic element; Due to the rigidity of the object being measured for: ， Then we get: 。 2. The stiffness measurement method using an endoscope stiffness measurement device according to claim 1, characterized in that: The stiffness measurement structure further comprises a contact housing, and the contact and the conductive rope are respectively slidably connected to the contact housing.

3. The stiffness measurement method using an endoscope stiffness measurement device according to claim 1, characterized in that: The conductive structure also includes a conductive jacket, the conductive rope is located in the conductive jacket, and the conductive rope is slidably connected to the conductive jacket, the front end of the conductive jacket is connected to the contact jacket, and the rear end of the conductive jacket is used to connect to the measuring piece.

4. The stiffness measurement method using an endoscope stiffness measurement device according to claim 1, characterized in that: A slide groove is provided in the measuring piece, the conductive rope passes through the measuring piece and extends into the slide groove to be connected with the front end of the measuring ring, and the elastic element is located in the slide groove.

5. The stiffness measurement method using an endoscope stiffness measurement device according to claim 1, characterized in that: The deformation display structure also includes a pull ring, which is connected to the rear end of the measuring member.

6. The stiffness measurement method using an endoscope stiffness measurement device according to claim 3, characterized in that: The deformation display structure also includes a fastener and a nut. The conductive rope is slidably connected to the fastener. The front end of the fastener is connected to the rear end of the conductive jacket. The rear end of the fastener is connected to the front end of the measuring piece through the nut.

7. The stiffness measurement method using an endoscope stiffness measurement device according to claim 6, characterized in that: A washer is provided between the fastener and the conductive rope.

8. The stiffness measurement method using an endoscope stiffness measurement device according to claim 1, characterized in that: The conductive rope is a steel wire rope.

9. The stiffness measurement method using an endoscope stiffness measurement device according to claim 1, characterized in that: The elastic element is a spring.

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