CN118303820A - Guiding sheath, endoscope assembly, use method of guiding sheath and detection system - Google Patents
Guiding sheath, endoscope assembly, use method of guiding sheath and detection system Download PDFInfo
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- CN118303820A CN118303820A CN202410746879.8A CN202410746879A CN118303820A CN 118303820 A CN118303820 A CN 118303820A CN 202410746879 A CN202410746879 A CN 202410746879A CN 118303820 A CN118303820 A CN 118303820A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00131—Accessories for endoscopes
- A61B1/00135—Oversleeves mounted on the endoscope prior to insertion
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00002—Operational features of endoscopes
- A61B1/00004—Operational features of endoscopes characterised by electronic signal processing
- A61B1/00009—Operational features of endoscopes characterised by electronic signal processing of image signals during a use of endoscope
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00002—Operational features of endoscopes
- A61B1/00057—Operational features of endoscopes provided with means for testing or calibration
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/04—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances
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Abstract
本发明涉及内窥镜技术领域，尤其是涉及一种引导鞘管、内窥镜组件及其使用方法和检测系统，包括基体，基体上设置有腔道，腔道的内壁上设置有第一标记和光路孔，基体上设置有入射光路通道和反射光路通道，反射光路通道与检测单元对应，入射光路通道、反射光路通道分别与光路孔连通。本发明在内窥镜插入部置入引导鞘管的过程中就能实现对摄像模组的图像传输延迟进行准确检测，相较于现有技术，检测时间节点提前，可以在内窥镜使用初期就能准确检测出插入部的摄像模组的图像传输延迟准确时间值，降低手术风险，实现图像传输延迟时间定量检测，同时，图像传输延迟不需要借助手术器械，降低了对手术器械的要求限制，提高了内窥镜的使用便捷性和安全性。
The present invention relates to the technical field of endoscopes, and in particular to a guide sheath, an endoscope assembly, a method for using the same, and a detection system, comprising a substrate, a cavity provided on the substrate, a first mark and an optical path hole provided on the inner wall of the cavity, an incident optical path channel and a reflection optical path channel provided on the substrate, the reflection optical path channel corresponding to a detection unit, and the incident optical path channel and the reflection optical path channel are respectively connected to the optical path hole. The present invention can accurately detect the image transmission delay of the camera module during the process of inserting the endoscope insertion part into the guide sheath. Compared with the prior art, the detection time node is advanced, and the accurate time value of the image transmission delay of the camera module of the insertion part can be accurately detected at the initial stage of the use of the endoscope, reducing surgical risks and realizing quantitative detection of the image transmission delay time. At the same time, the image transmission delay does not require the use of surgical instruments, reducing the requirements and restrictions on surgical instruments, and improving the convenience and safety of the use of the endoscope.
Description
Technical Field
The invention relates to the technical field of endoscopes, in particular to a guiding sheath tube, an endoscope assembly, a using method of the guiding sheath tube and a detecting system of the endoscope assembly.
Background
The endoscope is used as a common medical instrument in modern minimally invasive surgery and can be used for observing the internal cavity of a human body, the existing endoscope generally comprises a handle and an insertion part, an instrument channel is arranged in the insertion part and used for placing surgical instruments, a camera module is arranged at the far end of the insertion part, in actual operation, a pulling rod on the handle can be pulled to drive a traction wheel to rotate so as to carry out gesture adjustment on the far-end bending section of the insertion part, so that the orientation of the far-end camera module is adjusted, and the functions of sampling or surgery and the like are carried out in cooperation with the surgical instruments.
The applicant finds that in the process of realizing the invention, the pipeline of the camera module is arranged in the insertion part, and is influenced by the use environment, the image signal collected by the camera module is transmitted to the display, so that the image signal transmission is possibly delayed, and the judgment time node of the image signal transmission in the prior art is relatively delayed, thereby being unfavorable for the implementation of remedial measures and increasing the operation risk.
Disclosure of Invention
The application aims to provide a guiding sheath tube, an endoscope assembly, a using method thereof and a detecting system, which are used for solving the technical problems in the prior art and mainly comprise the following four aspects:
The first aspect of the application provides a guiding sheath, which is applied to an endoscope and comprises a substrate, wherein a cavity is arranged on the substrate, the cavity penetrates through the substrate along the axial direction, the cavity is used for penetrating through an insertion part of the endoscope, a first mark and a light path hole are arranged on the inner wall of the cavity, the first mark is matched with a camera module to realize the position detection of the insertion part, a first preset distance is arranged between the first mark and the light path hole, the light path Kong Xiangjiao is arranged at the proximal end of the cavity at the first mark, an incident light path channel and a reflection light path channel are arranged on the substrate, the input end of the incident light path channel is used for receiving a light signal irradiated into the cavity, the output end of the reflection light path channel corresponds to a detection unit, and the output end of the incident light path channel and the input end of the reflection light path channel are respectively communicated with the light path hole to realize the detection of the detection unit on the reflected light of the light signal of the insertion part in the cavity.
Further, the substrate includes a multiplexing portion and a disposable portion, the cavity, at least a portion of the incident light path channel, and at least a portion of the reflected light path channel are disposed on the disposable portion, and the detection unit is disposed on the multiplexing portion.
Further, the disposable portion and the multiplexing portion are detachably connected.
Further, a light source for generating an optical signal is arranged on the disposable part;
And/or, the multiplexing part is provided with a light-transmitting body, and the light-transmitting body is used for sealing the detection unit.
Further, the first mark is a scale mark;
Or, the first mark comprises a plurality of mark units, and the mark units gradually change along the axial direction of the cavity so as to realize detection of different positions of the insertion part by matching with the camera module.
The second aspect of the application provides an endoscope assembly, which comprises an insertion part and the guiding sheath pipe, wherein the distal end of the insertion part is provided with an imaging module, the peripheral wall of the insertion part is provided with a second mark, and the second mark is made of a light absorption material.
Further, a second preset distance is arranged between the second mark and the camera module, the difference between the second preset distance and the first preset distance is a, and a is a preset value.
Further, the light absorption performance of the second mark is gradually changed along the axial direction of the insertion portion.
In a third aspect of the present application, there is provided a method for using the guide sheath or the endoscope assembly described above, wherein when the second mark on the peripheral wall of the insertion portion corresponds to the optical path hole, the distance between the first mark and the distal end of the insertion portion is a preset value a, the method comprising the steps of:
Step S100, in the process of placing the insertion part into the cavity, acquiring a time point with the interval between the first mark and the distal end of the insertion part being a preset value a through the camera module, and marking the time point as a first moment;
Acquiring a time point of the reflected light corresponding to the second mark by the detection unit, and marking the time point as a second moment;
Step S200, determining a signal transmission delay time of the camera module based on the first time and the second time.
A fourth aspect of the present application provides a detection system for detecting a signal transmission delay time of an image capturing module of an endoscope, including:
The acquisition module is used for acquiring a time point when the distance between the first mark and the far end of the insertion part is a preset value a, and recording the time point as a first moment, and a time point when the second mark on the peripheral wall of the insertion part corresponds to the light path hole, and recording the time point as a second moment;
and the calculating module is used for determining the signal transmission delay time of the camera module based on the first moment and the second moment.
Compared with the prior art, the invention has at least the following technical effects:
Compared with the prior art, the detection time node is advanced, the accurate time value of the image transmission delay of the image pickup module of the insertion part can be accurately detected at the initial stage of the use of the endoscope, the operation risk is reduced, the quantitative detection of the image transmission delay time is realized, meanwhile, the image transmission delay does not need to be limited by surgical instruments, the requirement limit on the surgical instruments is reduced, and the use convenience and safety of the endoscope are improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following description will briefly explain the embodiments of the present invention or the drawings used in the description of the prior art, and it is obvious that the drawings described below are only some embodiments of the present invention, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of the structure of the guiding sheath of the present invention;
FIG. 2 is a schematic view of the internal structure of the guiding sheath of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
FIG. 4 is a schematic view of another construction of the guiding sheath of the present invention;
FIG. 5 is a schematic view of the structure of an endoscope assembly of the present invention;
FIG. 6 is a schematic view of the structure of an endoscope assembly of the present invention (with the insertion portion not yet placed in the testing position);
FIG. 7 is a partial enlarged view at B in FIG. 6;
FIG. 8 is a schematic view of the structure of an endoscope assembly of the present invention (with an insertion portion being placed into a testing position);
FIG. 9 is an enlarged view of a portion of FIG. 8 at C;
FIG. 10 is a schematic view of the structure of the insertion portion and the guide sheath of the present invention during insertion;
in the drawing the view of the figure,
10. A base; 110. a cavity channel; 111. a first mark; 1111. a first digital scale; 1112. a second digital scale; 1113. a digital scale III; 112. an optical path hole; 113. an incident light path channel; 114. a reflective optical path channel; 115. a light source; 116. a detection unit; 120. a multiplexing unit; 130. a disposable portion; 20. an insertion section; 210. a camera module; 220. a second mark; 221. a first annular light absorbing member; 222. a second annular light absorbing member; 223. and a third annular light absorbing member.
Detailed Description
The following description provides many different embodiments, or examples, for implementing different features of the invention. The elements and arrangements described in the following specific examples are presented for purposes of brevity and are provided only as examples and are not intended to limit the invention.
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
In the present invention, unless expressly stated or limited otherwise, a first feature may include first and second features directly contacting each other, either above or below a second feature, or through additional features contacting each other, rather than directly contacting each other. Moreover, the first feature being above, over, and on the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being below, beneath, and beneath the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is less level than the second feature.
In addition, in the invention, the 'near end' and the 'far end' are far and near positions of the structure relative to human body operation under the use environment, so that the description of the position relationship among the components is convenient, and meanwhile, the understanding is convenient; for the same component, "proximal" and "distal" are relative positional relationships of the component, not absolute; accordingly, it should be understood from the perspective of implementing the principles of the present invention without departing from the spirit of the invention.
The endoscope can extend into a human body through a natural channel or an operation area opening, when the operation area opening mode is adopted, the endoscope inserting part is softer and is easy to bend, in order to ensure that the endoscope inserting part can extend into a target position quickly and accurately, the endoscope inserting part is required to be guided by the guiding sheath, the endoscope inserting part is restrained by the rigidity characteristic of the guiding sheath, and bending of the endoscope inserting part in the extending process is avoided, so that the endoscope inserting part can extend into the target position quickly and accurately; in addition, when the endoscope is used for sampling or operation, the pipeline of the camera module is possibly damaged due to the influence of the production, transportation and storage environment of the endoscope, so that the image acquired by the camera module is transmitted to the display in the use process to have picture delay; in the existing delay detection technology, as disclosed in CN117221177B, the image transmission delay is determined by detecting the extension length of the surgical instrument, the distal end face of the insertion portion is required to be extended to the target position after the insertion portion is extended to the target position, the delay determination can be performed after the surgical instrument is acquired by the camera module, at this time, the operation of the endoscope has been performed for a period of time, and if the occurrence of a serious image transmission delay is detected, the endoscope is required to be replaced or the operation is interrupted, thereby delaying the operation time and increasing the operation risk. In order to solve the problem that an endoscope image detection delay detection time node delays an operation time later, the application provides a guiding sheath tube, an endoscope assembly, a using method and a detection system thereof, which can realize image transmission delay detection on an endoscope image pickup module in the process of arranging the guiding sheath tube based on the guiding sheath tube, and the specific structure is as in the following embodiment.
Example 1:
The embodiment of the application provides a guiding sheath tube, which is applied to an endoscope, as shown in fig. 1-3, and comprises a substrate 10, wherein a cavity 110 is arranged on the substrate 10, the cavity 110 axially penetrates through the substrate 10, the cavity 110 is used for penetrating through an insertion part 20 of the endoscope, a first mark 111 and a light path hole 112 are arranged on the inner wall of the cavity 110, the first mark 111 is used for being matched with an image pickup module 210 so as to realize position detection of the insertion part 20, a first preset distance is reserved between the first mark 111 and the light path hole 112, the light path hole 112 is positioned at the proximal end of the cavity 110 compared with the first mark 111, an incident light path channel 113 and a reflecting light path channel 114 are arranged on the substrate 10, the input end of the incident light path channel 113 is used for receiving light signals irradiated into the cavity, the output end of the reflecting light path channel 114 corresponds to a detection unit 116, and the output end of the incident light path channel 113 and the input end of the reflecting light path channel 114 are respectively communicated with the light path hole 112 so as to realize detection of the detection unit 116 on reflected light of the signals of the insertion part 20 in the cavity 110.
During the use of the endoscope, the guiding sheath tube can be used for helping the endoscope insertion part 20 to rapidly and accurately extend into the target position, while in the process of placing the endoscope insertion part 20 into the guiding sheath tube, the gap between the cavity 110 in the guiding sheath tube and the peripheral wall of the insertion part 20 is small, the insertion part 20 almost only moves axially in the cavity 110, that is, for the insertion part 20 in the cavity 110, the moving state of the distal end camera module 210 of the insertion part 20 and the moving state of the rest part of the insertion part 20 are almost maintained to be the same, based on this, as the insertion part 20 is placed in the cavity 110, the insertion part 20 passes through the optical path hole 112 first and then moves towards the first mark 111, as shown in fig. 6 and 7, at this time, the optical signal reflected by the peripheral wall of the insertion part 20 to the optical path hole 112 is reflected, and the detection unit 116 detects the reflected optical signal in the first state; when the first mark 111 enters the acquisition view of the camera module 210, and based on the image acquisition information acquired by the camera module 210, determining a time point (the detection position of the insertion portion 20 placed in the cavity 110) when the first mark 111 and the camera module 210 reach a predetermined distance, and recording the time point as T1; in addition, when the second mark 220 on the insertion portion 20 moves to the optical path hole 112, as shown in fig. 8 and 9, since the second mark 220 is made of a light absorbing material, the reflected light of the optical signal by the second mark 220 will change, and the reflected light signal detected by the detection unit 116 will be suddenly changed into a reflected light signal in the second state, the time point is recorded as T2, and since the interval between the first mark 111 and the optical path hole 112 matches the interval between the image capturing module 210 and the second mark 220, when the image capturing module 210 does not have an image transmission delay, the position of the first mark 111 collected by the image capturing module 210 is at the preset determination position, the second mark 220 on the insertion portion 20 should be exactly located in the optical path hole 112, and at this time, the detected signal of the detection unit 116 should be the reflected light signal in the second state, correspondingly, t1=t2; if the image transmission delay occurs in the image capturing module 210, the time when the detection unit 116 detects the reflected light signal in the second state is taken as a reference, the specific value of the image transmission delay time of the image capturing module 210 can be determined based on the time difference between the T1 and the T2, so as to realize quantitative detection of the image transmission delay of the image capturing module 210, meanwhile, because the image transmission delay of the image capturing module 210 can be accurately detected in the process of placing the guiding sheath into the endoscope insertion part 20, compared with the prior art, the detection time node is advanced, whether the image transmission delay exists in the image capturing module 210 of the insertion part 20 can be accurately detected at the initial stage of using the endoscope, the operation risk is reduced, meanwhile, the image transmission delay detection does not need to use a surgical instrument, the production requirement limit on the surgical instrument is reduced, and the use convenience and safety of the endoscope are improved.
It should be noted that, for the cooperative coordination between the image capturing module 210 and the first mark 111, the distance between the first mark 111 and the distal end face of the insertion portion 20 may be obtained by using the distal end face of the endoscope insertion portion 20 as a reference through the image capturing module 210, the position of the insertion portion 20 in the cavity 110 may be determined, so as to implement position detection of the insertion portion 20, a third mark may be provided at the distal end of the endoscope insertion portion 20, the distance between the first mark 111 and the third mark may be obtained by using the image capturing module 210, the position of the insertion portion 20 in the cavity 110 may be determined, the third mark may be a protrusion provided at the distal end face of the insertion portion 20, the protrusion may be provided near the image capturing module 210, or the third mark may be a groove provided at the distal end face of the insertion portion 20, and preferably, whether the position of the insertion portion 20 in the cavity 110 reaches the preset position may be determined according to the principle of three-point line.
To reduce the cost of the operation and reduce the burden on the patient, as shown in fig. 4, the base 10 may be configured to include a multiplexing part 120 and a disposable part 130, the cavity 110, at least part of the incident light path channel 113, and at least part of the reflected light path channel 114 are disposed on the disposable part 130, and the detection unit 116 is disposed on the multiplexing part 120; based on this structure, it is preferable that the disposable part 130 and the multiplexing part 120 are detachably connected, the disposable part 130 is used as a disposable consumable, the multiplexing sterilization cost is saved, the reusable detection unit 116 is reserved, the detection unit 116 and the multiplexing part 120 are stored together, when the guiding sheath tube is needed to be used, the multiplexing part 120 provided with the detection unit 116 is connected with the first new disposable part 130 and then put into use, and after the use is completed, the multiplexing part 120 provided with the detection unit 116 is detached, preferably the multiplexing part 120 provided with the detection unit 116 is cleaned and sterilized and then connected with the second new disposable part 130 and put into use again, so that the preparation cost of the disposable part 130 in the guiding sheath tube is reduced, and accordingly, the operation cost and the burden of a patient are correspondingly reduced.
In order to improve the convenience of use, a light source 115 for generating a light signal may be disposed on the disposable part 130, the light source 115 generates the light signal, the light signal irradiates the insertion part 20 in the cavity 110 through the incident light path channel 113 and the light path hole 112, then generates reflected light on the peripheral wall of the insertion part 20, and the reflected light irradiates the detection unit 116 through the light path hole 112 and the reflected light path channel 114, thereby realizing the detection of the light signal; furthermore, when multiplexing is performed, the multiplexing part 120 can be detached to detach the light source 115 and the detection unit 116 at the same time, and when the multiplexing part 120 and the disposable part 130 are installed, the light path communication between the light source 115 and the detection unit 116 can be ensured at the same time, so that the convenience in use of the guiding sheath tube is effectively improved, and the use cost is reduced.
In order to ensure that the light source 115 and/or the detection unit 116 can be reused along with the multiplexing part 120, a light transmitting body can be arranged on the multiplexing part 120, the light transmitting body is utilized to ensure the light path communication between the light source 115 and the detection unit 116 during use, meanwhile, the light source 115 and the detection unit 116 are sealed by the light transmitting body, so that the light source 115 and the detection unit 116 are in a sealed environment, and further cannot be polluted by body fluid during use, and can be put into cleaning and disinfection work, thereby improving the use safety and the use convenience of the light source 115, the detection unit 116 and the multiplexing part 120; the multiplexing unit 120 may be provided with one transparent body to seal the light source 115 and the detection unit 116, two transparent bodies to seal the light source 115 and the detection unit 116, one transparent body to seal only the light source 115, or one transparent body to seal the detection unit 116.
Specifically, the first mark 111 may be a scale mark, a number mark, a combination of scale numbers, a color bar code, or other mark information, preferably the first mark 111 is a scale mark, specifically, the distal end face of the insertion portion 20 or the third mark may be referred to, and the scale mark facing or diagonally facing at a specific angle may be referred to as a position of the insertion portion 20 in the cavity 110, and is denoted as T1 based on determining a time when the preset position is reached between the camera module 210 and the first mark 111.
In some embodiments, to improve the detection accuracy, the first mark 111 may be configured to include a plurality of mark units, where the plurality of mark units gradually change along the axial direction of the cavity, and accordingly, the light absorbing performance of the second mark 220 may be configured to gradually change along the axial direction of the insertion portion, so as to enable detection of different positions of the insertion portion 20 in cooperation with the camera module 210, and as illustrated in fig. 10, for example, the first mark 111 may be configured to include a first number scale 1111, a second number scale 1112, and a third number scale 1113 that are disposed along the axial direction, the second mark 220 may include a first annular light absorbing member 221, a second annular light absorbing member 222, and a third annular light absorbing member 223, The light absorption performance among the first annular light absorbing member 221, the second annular light absorbing member 222 and the third annular light absorbing member 223 may be set to be the same, or may be set to gradually increase or gradually decrease along the axial direction of the insertion portion 20, the space between the first digital scale 1111 and the first annular light absorbing member 221, the space between the second digital scale 1112 and the second annular light absorbing member 222, and the space between the third digital scale 1113 and the third annular light absorbing member 223 are the same, which are the first preset space, that is, when the image capturing module 210 captures the image information of the insertion portion 20 corresponding to the first digital scale 1111 (the space between the first digital scale 1111 and the distal end face of the insertion portion 20/the third mark is the preset value a), When the insertion portion 20 corresponds to the second digital scale 1112 (the distance between the second digital scale 1112 and the distal end face/the third mark of the insertion portion 20 in the image information acquired by the image capturing module 210 is a preset value a), the time T11 is denoted, when the insertion portion 20 corresponds to the third digital scale 1113 (the distance between the third digital scale 1113 and the distal end face/the third mark of the insertion portion 20 in the image information acquired by the image capturing module 210 is a preset value a), the time T13 is denoted, and when the detection unit 116 detects the reflected light signal corresponding to the first annular light absorbing member 221, the time T21 is denoted, The detection unit 116 is marked as T22 when corresponding to the second annular light absorbing member 222, the detection unit 116 is marked as T23 when corresponding to the third annular light absorbing member 223, the time difference values of T11 and T21, the time difference values of T12 and T22 and the time difference values of T13 and T23 are calculated, and then the three time difference values are averaged to be used as the delay time of image transmission; Still further exemplary, differently from the above-described example, the average light absorption properties among the first, second, and third annular light absorbers 221, 222, and 223 may be set to gradually increase or gradually decrease in the axial direction of the insertion portion 20, while the light absorption properties of the first annular light absorber 221 gradually increase or gradually decrease in the axial direction of the insertion portion 20, the light absorption properties of the second annular light absorber 222 gradually increase or gradually decrease in the axial direction of the insertion portion 20, the light absorption properties of the third annular light absorber 223 gradually increase or gradually decrease in the axial direction of the insertion portion 20, and, correspondingly, the transition boundary between adjacent two of the first, second, and third annular light absorbers 221, 222, For the moment of non-calculation delay, the detection unit 116 is continuously matched with the second mark 220, if the gradual change trend of the illumination intensity of the reflected light signal detected by the detection unit 116 corresponds to the gradual change trend of the light absorption performance of the second mark 220, the detection unit 116 is indicated to operate normally, the image transmission delay detection result of the camera module 210 is reliable, if the gradual change trend of the illumination intensity of the reflected light signal detected by the detection unit 116 does not correspond to the gradual change trend of the light absorption performance of the second mark 220, the detection unit 116 is indicated to operate abnormally, the image transmission delay detection result is not reliable, and the verification of the working stability of the detection unit 116 is realized.
It should be further noted that, the endoscope in the embodiment of the present application may be a bronchoscope, a pyeloscope, an esophagoscope, a gastroscope, a enteroscope, an otoscope, a nasoscope, a stomatoscope, a laryngoscope, a colposcope, a laparoscope, an arthroscope, etc., and the embodiment of the present application does not specifically limit the type of the endoscope; the detection unit 116 is a sensor for detecting wavelength and/or illumination intensity, which is known in the art and will not be described herein.
Example 2:
the embodiment of the application provides an endoscope assembly, as shown in fig. 5-9, which comprises an insertion portion 20 and a guiding sheath tube in embodiment 1, wherein an imaging module 210 is arranged at the distal end of the insertion portion 20, a second mark 220 is arranged on the peripheral wall of the insertion portion 20, and the second mark 220 is made of a light-absorbing material.
Based on the interval between the first mark 111 and the optical path hole 112, and the interval between the camera module 210 and the second mark 220, when the camera module 210 does not have an image transmission delay, and the camera module 210 collects that the position of the first mark 111 is at the preset determination position, the second mark 220 on the insertion portion 20 should be exactly located in the optical path hole 112, at this time, the detection signal of the detection unit 116 should be a reflected light signal in the second state, and correspondingly, t1=t2; if the image transmission delay occurs in the image capturing module 210, the time when the detection unit 116 detects the reflected light signal in the second state is taken as a reference, the T1 and the T2 are compared, and based on the time difference between the T1 and the T2, a specific value of the image transmission delay time of the image capturing module 210 can be determined, so as to realize quantitative detection of the image transmission delay of the image capturing module 210
Specifically, a second preset distance is provided between the second mark 220 and the camera module 210, and the difference between the second preset distance and the first preset distance is a preset value, and a is a preset value, which is because when the camera module 210 is used to cooperate with the first mark 111 to determine the position of the insert 20 in the cavity 110, the camera module 210 and the first mark 111 may be located at the same axial length position of the substrate 10 or at different axial length positions of the substrate 10 when the insert is located at the preset determination position, and in addition, under different references, for example, when the distal end surface of the insert 20 is used as a reference, compared with when the third mark on the insert 20 is used as a reference, the camera module 210 may acquire a preset distance between the first mark 111 and the reference, and the actual position of the insert 20 in the cavity may also be different, so that when the module 210 acquires position information corresponding to the first mark 111, the sum of the second preset distance and the preset value a is equal to the first preset distance, the second mark 220 and the second mark corresponding to the second mark 115 are precisely transmitted to the second light source unit 116, and the second light source unit 220 is precisely transmitted to the second light source unit 116.
In some embodiments, the light absorption performance of the second mark 220 may be gradually changed along the axial direction of the insertion portion 20, and the first mark 111 includes a plurality of mark units, where the plurality of mark units gradually changes along the axial direction of the cavity 110, and the plurality of mark units axially gradually changes along the cavity 110 and corresponds to the light absorption performance of the second mark 220 axially gradually changes along the axial direction of the insertion portion 20, so as to implement multi-point continuous image transmission delay time detection, and improve image transmission delay detection accuracy of the camera module.
Example 3:
The embodiment of the present application provides a method for using the guiding sheath in embodiment 1, when the second mark 220 on the peripheral wall of the insertion portion 20 corresponds to the optical path hole 112, the distance between the first mark 111 and the distal end surface of the insertion portion 20 is a preset value a, and the method includes the following steps:
Step S100, in the process of placing the insertion portion 20 into the cavity 110, obtaining a time point when the distance between the first mark and the distal end surface of the insertion portion 20 is a preset value a through the camera module 210, and recording the time point as a first moment;
Acquiring, by the detection unit 116, a time point of the reflected light corresponding to the second mark 220, and recording the time point as a second time;
in step S200, the time difference between the first time and the second time is determined as the signal transmission delay time of the image capturing module 210 based on the first time and the second time.
In order to improve the use safety and convenience of the endoscope, the method may further include step S300, when the determined signal transmission delay time is greater than the preset time threshold, sending out warning information to remind the operator that the image transmission delay of the camera module 210 is close to/has affected the normal operation of the operation, and timely taking countermeasures. The warning information may be at least one of light information, sound information, text information, image information, and vibration information, which is not particularly limited herein.
Example 4:
An embodiment of the present application provides a method for using the endoscope assembly in embodiment 2, in which when the second mark 220 on the peripheral wall of the insertion portion 20 corresponds to the optical path hole 112, the distance between the first mark 111 and the distal end surface of the insertion portion 20 is a preset value a, the method comprising the steps of:
Step S100, in the process of placing the insertion portion 20 into the cavity 110, acquiring a time point when the distance between the first mark 111 and the distal end surface of the insertion portion 20 is a preset value a by the camera module 210, and recording the time point as a first moment;
Acquiring, by the detection unit 116, a time point of the reflected light corresponding to the second mark 220, and recording the time point as a second time;
in step S200, the time difference between the first time and the second time is determined as the signal transmission delay time of the image capturing module 210 based on the first time and the second time.
In order to improve the use safety and convenience of the endoscope, the method may further include step S300, when the determined signal transmission delay time is greater than the preset time threshold, sending out warning information to remind the operator that the image transmission delay of the camera module 210 is close to/has affected the normal operation of the operation, and timely taking countermeasures. The warning information may be at least one of light information, sound information, text information, image information, and vibration information, which is not particularly limited herein.
Example 5:
The embodiment of the application provides a detection system for detecting signal transmission delay time of an imaging module 210 of an endoscope, which comprises the following steps:
An acquisition module, configured to acquire a time point when a distance between the first mark 111 and the distal end face of the insertion portion 20 is a preset value a, and record the time point as a first time, and a time point when the second mark 220 on the peripheral wall of the insertion portion 20 corresponds to the optical path hole 112, and record the time point as a second time;
and the calculating module is used for determining the signal transmission delay time of the camera module based on the first moment and the second moment.
Specifically, the acquiring module includes an image capturing module 210 located at the distal end of the endoscope insertion section 20, a light source 115 and a detecting unit 116, the image capturing module 210 detects the first mark 111, specifically, the distal end face or the third mark of the endoscope insertion section 20 may be used as a reference, and the position of the insertion section 20 in the cavity 110 may be acquired by the image capturing module 210; the light source 115 and the detection unit 116 cooperate to detect the second mark 220, and the reflective capability of the second mark 220 to the light signal is different from the reflective capability of the remaining peripheral wall of the insertion portion 20/the peripheral wall of the insertion portion 20 adjacent to the second mark 220, so as to determine the actual position of the insertion portion 20 in the cavity 110.
Specifically, the computing module is in the prior art, and corresponding functions can be realized by purchasing an existing computer and an existing running program.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (10)
1. The utility model provides a guiding sheath pipe, is applied to endoscope, its characterized in that includes the base member, be provided with the chamber way on the base member, the chamber way runs through the base member along the axial, the chamber way is used for wearing to establish the male portion of endoscope, be provided with first mark and light path hole on the inner wall of chamber way, first mark is used for cooperating with the module of making a video recording to realize inserting portion position detection, has first preset interval between first mark and the light path hole, light path Kong Xiangjiao is located the proximal end of chamber way at first mark, is provided with incident light path passageway and reflection light path passageway on the base member, and incident light path passageway's input is used for receiving the optical signal of shining in the chamber way, and reflection light path passageway's output corresponds with detecting element, incident light path passageway's output, reflection light path passageway's input respectively with the light path hole intercommunication, in order to realize detecting element to the detection of the reflected light of male portion to the optical signal in the chamber way.
2. The introducer sheath of claim 1, wherein the matrix includes a multiplexing portion and a disposable portion, the lumen, at least a portion of the incident light path channel, and at least a portion of the reflected light path channel are disposed on the disposable portion, and the detection unit is disposed on the multiplexing portion.
3. The introducer sheath of claim 2, wherein the disposable portion and the reuse portion are detachably connected.
4. The introducer sheath of claim 2, wherein the disposable portion has a light source disposed thereon for generating an optical signal;
And/or, the multiplexing part is provided with a light-transmitting body, and the light-transmitting body is used for sealing the detection unit.
5. The guiding sheath according to any one of claims 1-4, wherein the first mark is a scale mark;
Or, the first mark comprises a plurality of mark units, and the mark units gradually change along the axial direction of the cavity so as to realize detection of different positions of the insertion part by matching with the camera module.
6. An endoscope assembly, characterized by comprising an insertion part and the guiding sheath tube according to any one of claims 1-5, wherein the distal end of the insertion part is provided with an imaging module, and the peripheral wall of the insertion part is provided with a second mark made of light absorption materials.
7. The endoscope assembly of claim 6, wherein a second predetermined distance is provided between the second marker and the camera module, and a difference between the second predetermined distance and the first predetermined distance is a, a being a predetermined value.
8. The endoscope assembly of claim 6, wherein the light absorbing properties of the second marker are graded along the axial direction of the insertion portion.
9. A method of using the guiding sheath according to any one of claims 1 to 5 or the endoscope assembly according to any one of claims 6 to 8, wherein when the second mark on the peripheral wall of the insertion portion corresponds to the optical path hole, the distance between the first mark and the distal end of the insertion portion is a preset value a, the method comprising the steps of:
Step S100, in the process of placing the insertion part into the cavity, acquiring a time point with the interval between the first mark and the distal end of the insertion part being a preset value a through the camera module, and marking the time point as a first moment;
Acquiring a time point of the reflected light corresponding to the second mark by the detection unit, and marking the time point as a second moment;
Step S200, determining a signal transmission delay time of the camera module based on the first time and the second time.
10. A detection system for detecting a signal transmission delay time of an imaging module of an endoscope, comprising:
The acquisition module is used for acquiring a time point when the distance between the first mark and the far end of the insertion part is a preset value a, and recording the time point as a first moment, and a time point when the second mark on the peripheral wall of the insertion part corresponds to the light path hole, and recording the time point as a second moment;
and the calculating module is used for determining the signal transmission delay time of the camera module based on the first moment and the second moment.
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| CN118303820B (en) | 2024-08-27 |
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