Lesion measuring apparatus for endoscope and diagnosis and treatment system

Abstract

The utility model discloses a kind of lesion measuring instruments and diagnosis and treatment systems for endoscope, comprising: connecting shaft, for inserting into the channel of endoscope;Two measuring arms, with the distal end of connecting shaft is connected, two measuring arms are in preset included angle when being in working posture;Two measuring arms are respectively provided with at least one scale portion along respective length direction, and scale portion of two measuring arms is set in pairs, and all scale portions can be observed on the same side of lesion measuring instrument for endoscope;When two measuring arms are in preset included angle, the distance between two scale portions in each pair of scale portions is as end point value, to divide the measurable range of two measuring arms into at least two size intervals, and the lesion area of size falling into each size interval corresponds to respective preset processing scheme. The scale portion of two measuring arms divides the measuring range of measuring arm into at least two size intervals, and when using, it is not necessary to accurately measure, just according to size interval, it can be quickly decided, and it is convenient to determine lesion processing scheme.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and more specifically, to an endoscopic lesion measuring instrument. Furthermore, this utility model also relates to a diagnostic and treatment system including the aforementioned endoscopic lesion measuring instrument. Background Technology

[0002] Endoscopes have a wide range of applications in surgical clinical work, such as for examining lesions or performing surgery.

[0003] Endoscopic lesion measuring instruments play an important role as they can measure the size of lesions. For example, in the examination and surgery of gastrointestinal polyps, it is necessary to know the size of the lesion to make clinical decisions.

[0004] However, in related technologies, the scales of endoscopic lesion measuring instruments are fine and dense, which to some extent causes difficulties in reading measurements and makes them inconvenient to use.

[0005] Therefore, how to provide a convenient endoscopic lesion measuring instrument is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0006] In view of this, the purpose of this utility model is to provide an endoscopic lesion measuring instrument that is convenient for measurement.

[0007] Another objective of this invention is to provide a diagnostic and treatment system that includes the aforementioned endoscopic lesion measuring instrument, wherein the endoscopic lesion measuring instrument is convenient for measurement.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] An endoscopic lesion measuring instrument, comprising:

[0010] A connecting shaft for inserting into the endoscope's channel;

[0011] Two measuring arms are connected to the far end of the connecting shaft, and the two measuring arms are at a preset angle when in working position;

[0012] Each of the two measuring arms is provided with at least one scale portion along its respective length direction, and the scale portions of the two measuring arms are arranged in pairs, and all the scale portions can be observed on the same side of the endoscopic lesion measuring instrument;

[0013] When the two measuring arms are at a preset angle, the distance between the two scale portions in each pair of scale portions is used as the endpoint value to divide the measurable range of the two measuring arms into at least two size intervals. The lesion areas whose size falls into each size interval have their own preset treatment schemes.

[0014] Optionally, the connecting shaft includes a sheath and a drive shaft passing through the sheath; the two measuring arms are connected to the drive shaft and can extend or retract to the distal end of the sheath.

[0015] Optionally, the two measuring arms are movably connected to the drive shaft via a transmission assembly, so that when the drive shaft moves axially relative to the sheath, it drives the two measuring arms to open to the working posture.

[0016] Optionally, the transmission assembly includes:

[0017] In a four-bar linkage, the two measuring arms are respectively connected to two adjacent links of the four-bar linkage. The drive shaft is connected to two other adjacent links of the four-bar linkage to drive the four-bar linkage to move. The sheath is provided with a limiting part to limit the range of motion of the four-bar linkage or the measuring arms.

[0018] Optionally, at least one of the measuring arms is a shape memory material, so that the two measuring arms maintain the preset angle in an unconstrained state or restore the preset angle when entering a body temperature range environment.

[0019] Optionally, the number of scale portions is at least two, and the scale portions are not uniformly distributed on the measuring arm.

[0020] Optionally, the scale portion furthest from the angle between the two measuring arms is located at the end of the measuring arm.

[0021] Optionally, the number of the size ranges is two or three.

[0022] Optionally, the scale portion is arranged around the entire circumference of the measuring arm.

[0023] Optionally, the scale portion is a colored coating covering the surface of the measuring arm, or a color-changing layer formed after surface treatment of the measuring arm portion, or a textured area on the surface of the measuring arm portion.

[0024] Optionally, when the two measuring arms are at the preset angle, the two measuring arms are symmetrically arranged about the axial extension of the distal end of the connecting shaft.

[0025] A diagnostic system comprising an endoscope and the aforementioned endoscopic lesion measuring instrument.

[0026] The endoscopic lesion measuring instrument provided by this utility model has the following beneficial effects:

[0027] In use, when the measuring arms reach the lesion location, the two measuring arms are positioned at a preset angle, clamping both sides of the lesion. Based on the contact position between the lesion and the measuring arms and the relative position of the scale, the size range of the lesion can be quickly determined. Since each size range corresponds to a preset treatment plan, clinical decisions can be quickly made based on the test results. It is understood that the connecting shaft is usually a flexible and bendable component. Therefore, during measurement, the size range of the lesion can be determined by placing the end of the measuring arm away from the connecting shaft against the tissue surrounding the lesion and bending the connecting shaft to a suitable position where the two measuring arms contact both sides of the lesion.

[0028] In other words, this endoscopic lesion measuring instrument is characterized by the fact that its measuring arms do not provide specific, precise, uniform measurement scales, but rather at least one scale section. The distance between the paired scale sections of the two measuring arms serves as the endpoint value of the size interval. The scale section can be a reference scale for dividing the size interval into more important dimensions. By using the scale section, the measurement range of the measuring arm is divided into at least two size intervals. Compared with related technologies, this is equivalent to changing precise measurement to interval measurement. For most applications in surgical clinics, doctors often only need to know the approximate range of lesion size and do not need to precisely measure the specific size value of the lesion. When using this endoscopic lesion measuring instrument, doctors do not need to perform precise measurements. They only need to make quick decisions based on the size intervals divided by the reference scale section to determine the appropriate treatment plan for the lesion. Therefore, it is convenient for measurement and facilitates rapid medical decision-making.

[0029] The diagnostic and treatment system provided by this utility model includes the above-mentioned endoscopic lesion measuring instrument, and at least includes the beneficial effects of the above-mentioned endoscopic lesion measuring instrument. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the structure of an endoscopic lesion measuring instrument provided in a specific embodiment of the present invention;

[0032] Figure 2 This is a schematic diagram of a lesion measuring instrument used in an endoscope.

[0033] Figure 3 This is a schematic diagram of the structure of the measuring arm and sheath when the measuring arm is made of shape memory material.

[0034] Figure label:

[0035] 1-Sheath; 2-Measuring arm; 21-Scale section; 211-First scale section; 212-Second scale section; 213-Third scale section; 221-First dimension distance; 222-Second dimension distance; 223-Third dimension distance; 231-Third dimension interval; 232-Fourth dimension interval; 233-Fifth dimension interval; 3-Four-bar linkage; 4-Disease area. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0037] The core of this invention is to provide an endoscopic lesion measuring instrument that facilitates measurement. Another core aspect of this invention is to provide a diagnostic and treatment system that includes the aforementioned endoscopic lesion measuring instrument, which facilitates measurement.

[0038] It should be noted that, in the embodiments of the present invention, the distal end refers to the end that is close to or extends into the patient's body, and the other end opposite to the distal end is the proximal end, which refers to the end that is close to the doctor and convenient for the doctor to operate.

[0039] Please refer to Figure 1 and Figure 2 This utility model provides an endoscopic lesion measuring instrument, including a connecting shaft 1 and two measuring arms 2. The connecting shaft 1 is used to extend into the endoscope's channel. The two measuring arms 2 are connected to the distal end of the connecting shaft 1. When the two measuring arms 2 are in a working posture, they form a preset angle. Each of the two measuring arms 2 has at least one scale portion 21 along its respective length direction. The scale portions 21 of the two measuring arms 2 are arranged in pairs, and all scale portions 21 can be observed on the same side of the endoscopic lesion measuring instrument. When the two measuring arms 2 are at the preset angle, the distance between the two scale portions 21 in each pair is used as the endpoint value to divide the measurable range of the two measuring arms 2 into at least two size intervals. The lesion area 4 whose size falls into each size interval corresponds to its own preset treatment scheme.

[0040] In use, when the measuring arm 2 reaches the lesion area 4, the two measuring arms 2 are positioned at a preset angle, clamping the two sides of the lesion area 4 respectively. Based on the contact position between the lesion area 4 and the measuring arm 2 and the relative position of the scale portion 21, the size range of the lesion area 4 can be quickly determined. Since each size range corresponds to a preset treatment plan, clinical decisions can be quickly made based on the test results. It is understood that the connecting shaft 1 is usually a flexible and bendable component. Therefore, during measurement, the end of the measuring arm 2 away from the connecting shaft 1 can be pressed against the tissue surrounding the lesion area 4, and the connecting shaft can be bent to a suitable position where the two measuring arms 2 contact the two sides of the lesion area 4 respectively. By observing which pair of scale portions 21 the diameter of the lesion area 4 is far from or near, the size range of the lesion area 4 can be determined based on the distance between those scale portions 21.

[0041] In other words, the endoscopic lesion measuring instrument provided in this embodiment is characterized in that its measuring arm 2 does not provide a specific, precise, uniform measuring scale, but rather provides at least one scale section 21. The distance between the paired scale sections 21 of the two measuring arms 2 serves as the endpoint value of the size interval. The scale section 21 can be a reference scale for dividing the size interval into relatively important dimensions. By using the scale section 21, the measurable range of the measuring arm 2 is divided into at least two size intervals. Compared with related technologies, this is equivalent to changing precise measurement to interval measurement. For most applications in surgical clinics, doctors often only need to know the approximate size range of the lesion area 4 and do not need to precisely measure the specific size value of the lesion area 4. When using this endoscopic lesion measuring instrument, doctors do not need to perform precise measurements. They only need to make quick decisions based on the size intervals divided by the reference scale section 21 to determine the appropriate treatment plan for the lesion area 4. Therefore, it is convenient for measurement and facilitates rapid medical decision-making.

[0042] It should be noted that this embodiment does not limit the specific number of scale portions 21. The number of scale portions 21 on a single measuring arm 2 can be one or at least two.

[0043] For example, when each of the two measuring arms 2 has a graduated section 21, the distance between the two graduated sections 21 of the two measuring arms 2 divides the measurable range of the two measuring arms 2 into two size intervals. For ease of description, these two size intervals are referred to as the first size interval and the second size interval, respectively. The first size interval is the size interval located near the intersection of the line connecting the two graduated sections 21 and the two measuring arms 2; that is, the first size interval is less than the distance between the line connecting the two graduated sections 21. The second size interval is the size interval located near the open end of the line connecting the two graduated sections 21 and the two measuring arms 2; that is, the second size interval is greater than the distance between the line connecting the two graduated sections 21. The first size interval corresponds to the first... The preset processing scheme is as follows: the second size range corresponds to the second preset processing scheme. Therefore, when the contact position between the lesion area 4 and the measuring arm 2 is detected to fall within the first size range, it can be determined that the lesion area 4 will be processed using the first preset processing scheme. When the contact position between the lesion area 4 and the measuring arm 2 is detected to fall within the second size range, it can be determined that the lesion area 4 will be processed using the second preset processing scheme. When the contact position between the lesion area 4 and the measuring arm 2 is exactly at the position of the two scale parts 21, the size of the lesion area 4 is the distance between the two scale parts 21. At this time, it can be determined that the lesion area 4 will be processed using either the first preset processing scheme or the second preset processing scheme.

[0044] For an endoscopic lesion measuring instrument used to detect gastrointestinal polyp lesion area 4, exemplarily, each of the two measuring arms 2 is provided with three scale sections 21, referred to as the first scale section 211, the second scale section 212, and the third scale section 213, respectively. Along the length direction of the measuring arm 2, the first scale section 211, the second scale section 212, and the third scale section 213 are successively moved away from the intersection of the two measuring arms 2. The distance between a pair of first scale sections 211 on the two measuring arms 2 is the first dimension distance 221, the distance between a pair of second scale sections 212 on the two measuring arms 2 is the second dimension distance 222, and the distance between a pair of third scale sections 213 on the two measuring arms 2 is the third dimension distance 223. Thus, the first dimension distance 221, the second dimension distance 222, and the third dimension distance 223 divide the measuring range of the measuring arm 2 into four scale sections. The size range is defined as follows: three size ranges 231, 232, 233, and 234. The third size range 231 is smaller than the first size distance 221; the fourth size range 232 is larger than the first size distance 221 and smaller than the second size distance 222; the fifth size range 233 is larger than the second size distance 222 and smaller than the third size distance 223; and the sixth size range is larger than the third size distance 223. The preset treatment plan for the third size range 231 can be no treatment or cold snare resection; the preset treatment plan for the fourth size range 232 can be cold snare resection; the preset treatment plan for the fifth size range 233 can be hot snare polyp resection; and the preset treatment plan for the sixth size range can be endoscopic mucosal resection. When the size of lesion area 4 falls within the third size range 231, it can be determined that lesion area 4 should not be treated or should be treated with a cold snare resection. When the size of lesion area 4 falls within the fourth size range 232, it can be determined that lesion area 4 should be treated with a cold snare resection. When the size of lesion area 4 falls within the fifth size range 233, it can be determined that lesion area 4 should be treated with a hot snare polyp resection. When the size of lesion area 4 falls within the sixth size range, it can be determined that lesion area 4 should be treated with endoscopic mucosal resection. When the size of the lesion area 4 is equal to the first dimension distance 221, the lesion area 4 can be left untreated or treated with a cold snare resection. When the size of the lesion area 4 is equal to the second dimension distance 222, the lesion area 4 can be treated with a cold snare resection or a hot snare polypectomy. When the size of the lesion area 4 is equal to the third dimension distance 223, the lesion area 4 can be treated with a hot snare polypectomy or an endoscopic mucosal resection.

[0045] It should be noted that this embodiment does not limit the specific values ​​of the first size distance 221 determined by the first scale portion 211, the second size distance 222 determined by the second scale portion 212, and the third size distance 223 determined by the third scale portion 213. For example, the first size distance 221 can be 5 mm, the first size distance 222 can be 10 mm, and the third size distance 223 can be 20 mm.

[0046] That is, when the number of scale portions 21 on a single measuring arm 2 is at least two, this embodiment does not limit the specific distribution of the scale portions 21. The scale portions 21 can be evenly distributed or non-uniformly distributed. It is understood that when the scale portions 21 are distributed according to the endpoint values ​​of the size range corresponding to the preset treatment scheme recommended by medical experience, it is more conducive to doctors to quickly make a treatment scheme selection.

[0047] In addition, in order to minimize the length of the measuring arm 2, in some embodiments, the scale portion 21 furthest from the angle between the two measuring arms 2 is located at the far end of the measuring arm 2.

[0048] In other words, the distance between the two scale portions 21 located at the ends of the two measuring arms 2 furthest from their included angle determines the maximum measurement range of the two measuring arms 2. When the two measuring arms 2 cannot encompass both sides of the lesion area 4, that is, when the lesion area 4 exceeds the measurement range of the two measuring arms 2, the size of the lesion area 4 is greater than the distance between the two furthest scale portions 21 on the two measuring arms 2. It can be understood that the furthest scale portion 21 divides the area beyond the length of the measuring arm 2 for measurement, which can minimize the length of the measuring arm 2 and improve the passage of the lesion measuring instrument in the curved endoscopic instrument channel.

[0049] In addition, in some embodiments, the number of size ranges is two or three.

[0050] That is, in this embodiment, the number of scale sections 21 on a single measuring arm 2 is one or two, so that the size range does not exceed three. This reduces the decision-making burden for doctors and makes operation and use more convenient. Compared with related technologies that use more scale lines for fine measurement, the endoscopic lesion measuring instrument provided in this embodiment can quickly determine the size range of the lesion area 4 from two or three size ranges, which facilitates quick decision-making on the treatment method for the lesion area 4.

[0051] Furthermore, the above embodiments do not limit the specific location or formation method of the scale portion 21, as long as the scale portion 21 can represent a certain position size.

[0052] In some embodiments, the scale portion 21 is disposed at a preset position circumferentially on the measuring arm 2. That is, the position of the scale portion 21 can be determined according to the position of the measuring arm 2 during measurement, so that the scale portion 21 is located at a preset position circumferentially on the measuring arm 2, so that the doctor can visually observe the scale portion 21 from a specific position. For example, the scale portion 21 is disposed on one side of the plane where the measuring arm 2 is opened, that is, when the doctor observes the plane where the open measuring arm 2 is located from the front, the scale portion 21 can be clearly observed.

[0053] In other embodiments, the scale portion 21 may be arranged around the entire circumference of the measuring arm 2. That is, the scale portion 21 is provided on the entire circumference of the measuring arm 2, so that the doctor can directly observe the scale portion 21 regardless of the viewing angle of the measuring arm 2, without the need to specially adjust the position of the measuring arm 2, and it is also convenient for processing and manufacturing.

[0054] Furthermore, this embodiment does not limit the manufacturing method of the scale portion 21. For example, the scale portion 21 can be laser-etched, or it can be a protruding structure, a groove structure, or a grid structure, etc.

[0055] In some embodiments, the scale portion 21 is a colored coating covering the surface of the measuring arm 2, or a color-changing layer formed after surface treatment of a portion of the measuring arm 2, or a textured area on a portion of the surface of the measuring arm 2.

[0056] That is, in this embodiment, the scale portion 21 is indicated by a colored coating, a color-changing layer, or a textured area to facilitate observation by the doctor.

[0057] Additionally, it should be noted that the preset included angle between the two measuring arms 2 is a fixed value. Therefore, the distance between the corresponding scale portions 21 on the two measuring arms 2 is fixed, allowing for the rapid determination of the size range corresponding to the lesion area 4. Alternatively, there can be a preset correspondence between the preset included angle between the two measuring arms 2 and the scale portions 21. Therefore, a series of measuring arms 2 of different specifications can be designed, with different specifications having different preset included angles or arm lengths, each corresponding to a specific scale portion 21. Furthermore, the two measuring arms 2 can be detachably connected to the connecting shaft 1, allowing for the replacement of measuring arms 2 of different specifications through disassembly and assembly to meet different usage requirements.

[0058] It is understood that when the two measuring arms 2 are in the working posture, that is, when the two measuring arms 2 are opened to their maximum state, they form a preset angle. This preset angle can be defined using the structure of scissors or pliers or similar objects found in the prior art, or a suitable structure can be provided on other components of this invention to define the preset angle.

[0059] In addition, for ease of measurement, in some embodiments, when the two measuring arms 2 are at a preset angle, the two measuring arms 2 are symmetrically arranged about the axial extension of the far end of the connecting shaft 1.

[0060] Understandably, when using the endoscopic lesion measuring instrument under endoscopy, the connecting shaft 1 passes through the instrument channel of the endoscope, and the two measuring arms 2 extend out of the instrument channel. Therefore, by moving the endoscope, the connecting shaft 1 can be moved by utilizing the limiting effect of the instrument channel. When the two measuring arms 2 are at a preset angle, and when the two measuring arms 2 are symmetrically arranged about the line where the connecting shaft 1 is located, the movement of the connecting shaft 1 is more conducive to moving the two measuring arms 2 closer to the lesion area 4 and measuring the lesion area 4.

[0061] Additionally, it is understandable that the two measuring arms 2 are in a preset angle when in working position. When the endoscopic lesion measuring instrument is applied to the endoscope, it needs to pass through the instrument channel of the endoscope. Since the cross-sectional size of the instrument channel is limited, when the endoscopic lesion measuring instrument passes through the instrument channel, the two measuring arms 2 can be in a closed state, that is, the two measuring arms 2 are parallel and attached or overlapped. When measuring, the two measuring arms 2 extend out of the instrument channel and open the preset angle, that is, the two measuring arms 2 are movably set on the connecting shaft 1.

[0062] The above embodiments do not specifically limit the specific movement mode and implementation of the measuring arm 2, as long as it can be ensured that the two measuring arms 2 are in the working posture at a preset angle.

[0063] In some embodiments, the connecting shaft 1 includes a sheath and a drive shaft passing through the sheath; two measuring arms 2 are connected to the drive shaft and can extend or retract to the distal end of the sheath.

[0064] In other words, this embodiment utilizes the telescopic movement of the drive shaft within the sheath to drive the two measuring arms 2, allowing the measuring arms 2 to extend or retract to the distal end of the sheath. When the measuring arm 2 needs to be in a working position, the drive shaft moves towards the distal end of the sheath, driving the measuring arm 2 to extend beyond the distal end of the sheath at a preset angle; when the measuring arm 2 completes its measurement, the drive shaft moves towards the proximal end of the sheath, driving the measuring arm 2 to retract to the distal end of the sheath. That is, this application only requires controlling the telescopic movement of the drive shaft, making it easy to control.

[0065] It should be noted that when the drive shaft moves, in addition to extending or retracting to the far end of the sheath, the two measuring arms 2 can also move away from or closer to the other measuring arm 2 at the same time as the drive shaft moves, so that the two measuring arms 2 are at a preset angle or closed; or the drive shaft can simultaneously drive the two measuring arms 2 to move away from or closer to each other, so that the two measuring arms 2 are at a preset angle or closed.

[0066] The proximal end of the connecting shaft can be connected to a handle, which can be divided into different parts that are connected to the sheath and the drive shaft respectively to control the relative movement of the two.

[0067] In some embodiments, it is optional to connect the measuring arm 2 to the drive shaft and the drive shaft to the handle, referring to the structure of any clamp or pliers used under an endoscope in the prior art.

[0068] Furthermore, in some embodiments, the two measuring arms 2 are movably connected to the drive shaft via a transmission assembly, so that when the drive shaft moves axially relative to the sheath, it drives the two measuring arms 2 to open to the working position.

[0069] In other words, this embodiment uses the motion transmission of the transmission component to transform the axial movement of the drive shaft relative to the sheath into the opening movement of the two measuring arms 2. By utilizing the structure of the transmission component, the motion transformation from the drive shaft to the two measuring arms 2 is limited, which helps to simplify the movement of the drive shaft and make it easier to control.

[0070] Furthermore, in some embodiments, the transmission assembly includes a four-bar linkage 3, with two measuring arms 2 respectively connected to two adjacent links of the four-bar linkage 3, and a drive shaft connected to two other adjacent links of the four-bar linkage 3 to drive the four-bar linkage 3 to move. The sheath is provided with a limiting part, which is used to limit the range of motion of the four-bar linkage 3 or the measuring arms 2.

[0071] In other words, when it is necessary for the two measuring arms 2 to open to a preset angle, the drive shaft is activated, which in turn drives the four-bar linkage 3. This, in turn, causes the two links of the four-bar linkage 3 to move the two measuring arms 2, thus achieving the linkage of the two measuring arms 2. This structure is simple and easy to operate. At the same time, the use of the four-bar linkage 3 also helps to ensure the smoothness of the movement of the measuring arms 2.

[0072] Furthermore, exemplarily, the four-bar linkage 3 is a parallelogram four-bar linkage. The parallelogram four-bar linkage is advantageous for driving the two measuring arms 2 to rotate synchronously in opposite directions, so as to open or close the two measuring arms 2 at a preset angle, and facilitate the control of the movement and position of the measuring arms 2.

[0073] Furthermore, this embodiment does not limit the specific structure of the drive shaft, as long as the drive shaft can drive the four-bar linkage 3 to move. For example, the drive shaft includes a steel wire rope, which is threaded inside a sheath and extends to a handle located at the end of the sheath away from the measuring arm 2 (the proximal end of the sheath), so that the operating part on the operating handle can drive the steel wire rope to move, thereby causing the steel wire rope to drive the four-bar linkage 3 to move, and finally realize the movement of the measuring arm 2.

[0074] In addition, in order to ensure the smoothness of the movement of the measuring arm 2 and the accuracy of the movement path, in some embodiments, the sheath is provided with a limiting part to limit the movement range of the four-bar linkage 3 or the measuring arm 2, thereby making the movement of the measuring arm 2 more stable and reliable, which is conducive to ensuring the correctness of the movement path of the measuring arm 2.

[0075] For example, the limiting part is a limiting groove provided in the sheath tube, and the measuring arm 2 is provided with a limiting protrusion that slides with the limiting groove. The limiting groove is used to limit the movement path of the limiting protrusion.

[0076] In other words, this embodiment sets a limiting groove on the sheath and uses the shape of the limiting groove to limit the movement path of the limiting protrusion, thereby limiting the movement of the measuring arm 2. When the drive shaft drives the measuring arm 2 to move, the limiting protrusion slides along the limiting groove, thereby ensuring the correctness of the movement direction and the smoothness of the movement of the measuring arm 2.

[0077] Additionally, please refer to Figure 3 In some embodiments, at least one measuring arm 2 is a shape memory material to enable the two measuring arms 2 to maintain a preset angle in an unconstrained state or to restore the preset angle when entering a body temperature range environment.

[0078] In other words, this embodiment utilizes the properties of shape memory materials to allow the two measuring arms 2 to have a preset angle in their initial state. When the measuring arms 2 extend from the endoscope's instrument channel or enter a body temperature environment, they can quickly return to their preset angle. In this case, the transmission mechanism that drives the measuring arms 2 can be omitted, thus avoiding the use of mechanical drive devices and simplifying the structure. In this embodiment, the connecting shaft may not have a sheath, and the proximal end of the connecting shaft may not have a handle. The purpose of this invention can also be achieved by connecting the measuring arms only through a separate drive shaft, such as a steel wire rope.

[0079] In addition to the endoscopic lesion measuring instrument described above, this utility model also provides a diagnostic and treatment system that includes the endoscopic lesion measuring instrument disclosed in the above embodiments. The diagnostic and treatment system also includes an endoscope. For the structure of other parts of the endoscope, please refer to the prior art, which will not be described in detail here.

[0080] The key point of this embodiment is that the diagnostic and treatment system includes the endoscopic lesion measuring instrument disclosed in any of the above embodiments, so that the diagnostic and treatment system has at least the beneficial effects of the endoscopic lesion measuring instrument disclosed in any of the above embodiments, which will not be elaborated here.

[0081] It is understandable that the endoscope has an instrument channel (clamp channel), through which the aforementioned endoscopic lesion measuring instrument can pass. It should be noted that when the endoscopic lesion measuring instrument passes through the instrument channel, the two measuring arms 2 of the endoscopic lesion measuring instrument can be in a closed state, that is, the two measuring arms 2 are parallel and attached or overlapped, to facilitate the passage of the endoscopic lesion measuring instrument through the instrument channel; when the two measuring arms 2 extend out of the instrument channel, at least one measuring arm 2 can be driven to move by operating the drive device, so that the two measuring arms 2 form a preset angle, so as to use the two measuring arms 2 to measure the lesion area 4.

[0082] It should also be noted that, in this specification, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0083] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0084] The endoscopic lesion measuring instrument and diagnostic system provided by this utility model have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principles of this utility model, and these improvements and modifications also fall within the protection scope of this utility model.

Claims

1. An endoscopic lesion measuring instrument, characterized in that, include: Connecting shaft (1) for inserting into the endoscope's channel; Two measuring arms (2) are connected to the far end of the connecting shaft (1), and the two measuring arms (2) are in a preset angle when they are in the working posture; The two measuring arms (2) are provided with at least one scale portion (21) along their respective length directions. The scale portions (21) of the two measuring arms (2) are arranged in pairs. All the scale portions (21) can be observed on the same side of the endoscopic lesion measuring instrument. When the two measuring arms (2) are at a preset angle, the distance between the two scale portions (21) in each pair of scale portions (21) is used as the endpoint value to divide the measurable range of the two measuring arms (2) into at least two size intervals. The lesion area (4) whose size falls into each size interval has its own preset treatment scheme.

2. The endoscopic lesion measuring instrument according to claim 1, characterized in that, The connecting shaft (1) includes a sheath and a drive shaft passing through the sheath; the two measuring arms (2) are connected to the drive shaft and can extend or retract to the distal end of the sheath.

3. The endoscopic lesion measuring instrument according to claim 2, characterized in that, The two measuring arms (2) are movably connected to the drive shaft via a transmission assembly so that when the drive shaft moves axially relative to the sheath, it drives the two measuring arms (2) to open to the working posture.

4. The endoscopic lesion measuring instrument according to claim 3, characterized in that, The transmission assembly includes: The four-bar linkage (3) has two measuring arms (2) respectively connected to two adjacent links of the four-bar linkage (3). The drive shaft is connected to two other adjacent links of the four-bar linkage (3) to drive the four-bar linkage (3) to move. The sheath is provided with a limiting part to limit the range of motion of the four-bar linkage (3) or the measuring arms (2).

5. The endoscopic lesion measuring instrument according to claim 1 or 2, characterized in that, At least one of the measuring arms (2) is a shape memory material, so that the two measuring arms (2) maintain the preset angle in an unconstrained state or restore the preset angle when entering the body temperature range environment.

6. The endoscopic lesion measuring instrument according to claim 1, characterized in that, The number of the scale portions (21) is at least two, and the scale portions (21) are not uniformly distributed on the measuring arm (2).

7. The endoscopic lesion measuring instrument according to claim 1, characterized in that, The scale portion (21) furthest from the angle between the two measuring arms (2) is located at the far end of the measuring arm (2).

8. The endoscopic lesion measuring instrument according to claim 1, characterized in that, The number of the size ranges is two or three.

9. The endoscopic lesion measuring instrument according to claim 1, characterized in that, The scale portion (21) is arranged around the entire circumference of the measuring arm (2).

10. The endoscopic lesion measuring instrument according to claim 1, characterized in that, The scale portion (21) is a colored coating covering the surface of the measuring arm (2), or a color-changing layer formed after surface treatment of part of the measuring arm (2), or a textured area on part of the surface of the measuring arm (2).

11. The endoscopic lesion measuring instrument according to claim 1, characterized in that, When the two measuring arms (2) are at the preset angle, the two measuring arms (2) are symmetrically arranged about the axial extension of the far end of the connecting shaft (1).

12. A diagnostic and treatment system, characterized in that, Includes endoscopes and endoscopic lesion measuring instruments as described in any one of claims 1-11.

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