CN107736869B - Double-head full-view colonoscope and application method thereof - Google Patents
Double-head full-view colonoscope and application method thereof Download PDFInfo
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- CN107736869B CN107736869B CN201711001906.5A CN201711001906A CN107736869B CN 107736869 B CN107736869 B CN 107736869B CN 201711001906 A CN201711001906 A CN 201711001906A CN 107736869 B CN107736869 B CN 107736869B
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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
- A61B1/31—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 for the rectum, e.g. proctoscopes, sigmoidoscopes, colonoscopes
-
- 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
- A61B1/005—Flexible endoscopes
- A61B1/0051—Flexible endoscopes with controlled bending of insertion part
-
- 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
- A61B1/005—Flexible endoscopes
- A61B1/0051—Flexible endoscopes with controlled bending of insertion part
- A61B1/0052—Constructional details of control elements, e.g. handles
-
- 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
- A61B1/05—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 characterised by the image sensor, e.g. camera, being in the distal end portion
- A61B1/051—Details of CCD assembly
-
- 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
- A61B1/06—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 with illuminating arrangements
- A61B1/0661—Endoscope light sources
- A61B1/0684—Endoscope light sources using light emitting diodes [LED]
-
- 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
- A61B1/12—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 with cooling or rinsing arrangements
- A61B1/121—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 with cooling or rinsing arrangements provided with means for cleaning post-use
- A61B1/123—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 with cooling or rinsing arrangements provided with means for cleaning post-use using washing machines
Abstract
The application relates to a double-head full-view colon endoscope and a using method thereof, wherein the double-head full-view colon endoscope comprises an operation part, an insertion part and a bending part which are sequentially connected, the double-head full-view colon endoscope comprises a flexible pipe and a flexible shaft which are coaxially distributed, the flexible shaft is positioned in the flexible pipe, eight circular through holes penetrating the operation part, the insertion part and the bending part are arranged in the flexible pipe, a detection pipeline is arranged in the circular through holes, the bending part flexible pipe is provided with two bifurcation parts, blind holes which are symmetrically arranged are additionally arranged on the bifurcation parts, an elastic part is arranged in the blind holes, the bending part is sleeved with a compressing part, the operation part drives the compressing part to move along the axial direction of the bending part by utilizing flexible shaft transmission and screw nut pair transmission, and furcation opening and furling of the bifurcation parts are controlled, so that an adjusting observation angle is realized.
Description
Technical Field
The application relates to the technical field of medical appliances, in particular to a double-head full-view colon endoscope and a using method thereof.
Background
The global colorectal cancer incidence rate is already located at the 3 rd position of male cancers and the 2 nd position of female cancers, wherein the incidence rate of intestinal cancers in China is increased by 4% of the year, and is 2 times of the world level. The reason for this is that domestic endoscopy for colon has low popularity and early prevention and early diagnosis of corresponding cancers are not perfect.
Currently, two types of equipment are mainly used for colon examination, one is a conventional colon endoscope, and the other is a capsule endoscope. The endoscope is moved forward by the operation of a doctor and the angle of the bent front end, and simultaneously the endoscope is inflated to expand the intestinal cavity to be spread, and the inner wall of the intestinal tract is observed and recorded in the moving process. However, at present, the conventional colon endoscope has limited visual angle and insufficient active bending capability in the examination process, and the inner wall of the intestinal canal is fully distributed with micro-villus structures, and the intestinal canal is generally in a fold shape in vivo, so that the focus hidden at the back of the fold or at the depth of the villus is not easy to be found.
The capsule endoscope is a novel detection device for digestive tract examination, especially small intestine examination, and has the advantages of convenient examination and no pain. However, the emerging capsule endoscope technology also has disadvantages such as low diagnostic rate and limited functionality, compared to the conventional endoscope. Firstly, most capsule endoscopes only can move along with intestinal peristalsis, so that suspected lesions cannot be observed repeatedly; secondly, the focus hidden at the back of the fold or at the deep part of the villus is not easily found by the capsule endoscope. The limited functions means that the capsule endoscope used clinically at present can only take pictures and does not have advanced functions such as active walking, biopsy, drug application and the like.
In addition, active driving research of capsule endoscopes in various research institutions is expected to improve some problems existing in the existing clinical capsule endoscopy, but the problems of complex peripheral auxiliary systems, expensive equipment, incapability of adjusting the lens direction, incapability of expanding intestinal tracts and the like still exist.
Disclosure of Invention
In order to overcome the technical defects, the application provides a double-head full-view colon endoscope, which aims to solve the technical problems that the existing conventional colon endoscope has a narrow view angle and insufficient active bending force in the detection process and can not find focus on the back of a fold or deep in villus, and adopts the following technical scheme:
the utility model provides a full visual angle colon endoscope of double-end, includes the operating portion, insert portion and the flexion that connect gradually, insert portion and flexion insert human knot intestinal inside, operating personnel pass through the action of operating portion control flexion, operating portion, insert portion and flexion all include coaxial distribution's hose and flexible axle, and the flexible axle is located inside the hose, have eight round through-holes that run through operating portion, insert portion and flexion along its cross-section circle diameter symmetric distribution in the hose, install the pipeline for detection in the round through-hole, the flexion hose has two bifurcation parts, and the blind hole of symmetry setting is increased along its axial to bifurcation part, have the elastic component in the blind hole, can drive the bifurcation of two bifurcation parts and open, the flexion cover is equipped with the clamp, and operating portion utilizes drive unit transmission and vice transmission of lead screw nut to drive the clamp and along the axial displacement of flexion, and then the bifurcation of control bifurcation part opens and draws in the flexible axle.
Further, the detection pipeline comprises a light pipe, a pliers pipe, an objective lens pipe and a water pipe which are symmetrically distributed along the diameter of the section of the hose.
Further, an illumination device is arranged at the end part of the light pipe, which is positioned in the bending part.
Further, a biopsy forceps is arranged at the end position of the forceps tube in the bending part.
Further, a camera is arranged at the end part of the objective lens tube, which is positioned in the bending part.
Further, a spray head is arranged at the end part of the water pipe in the bending part.
Further, the outer circumferential surface of the flexible shaft of the bending part is provided with an external thread structure, and the pressing piece is connected with the flexible shaft of the bending part in a matched manner through the external thread structure and controls the bifurcation opening degree of the bifurcation part.
Further, the compressing piece is a hollow nut and comprises an inner thread structure of an inner ring and a compressing structure of an outer ring, the inner thread structure of the inner ring is matched with an outer thread structure on a flexible shaft of the bending part, the compressing structure of the outer ring is provided with two cavity structures symmetrically distributed along the cross section diameter of the nut, the cross section shape of the two cavity structures is matched with the cross section shape of a forked part, and the two forked parts of the hose can extend into the two cavities of the compressing structure.
Further, the driving device is a motor, and an output shaft of the motor is fixedly connected with the end part of the flexible shaft in the operation part.
Further, the elastic piece is an elastic metal strip and is bent into a semicircle in a natural state.
Further, the operation part is provided with eight telescopic springs sleeved on the detection pipeline, one end of each telescopic spring is fixedly connected with the end face of the hose of the operation part, and the other end of each telescopic spring is fixedly connected with one end, extending out of the hose, of each detection pipeline, and is used for automatically compensating the elongation or shortening of the detection pipeline when the bifurcation part is opened or closed.
The application also discloses a using method of the double-head full-view colon endoscope, which comprises the following steps:
step one: when the colon endoscope is positioned outside the body, the hollow nut is positioned at the connecting position of the bending part and the inserting part, and the bifurcation part is opened in a free state under the action of the elastic metal strip.
Step two: and controlling the motor of the double-head full-view colon endoscope to rotate positively, moving the hollow nut to the tail end of the flexible shaft of the bending part until the hollow nut moves to the tail end of the flexible shaft of the bending part, pressing the bifurcation part of the bending part by the hollow nut at the moment to fold the bifurcation part, and operating the endoscope to enter the intestinal tract of a human body with the minimum diameter.
Step three: the colon endoscope is operated to move in the intestinal tract of a human body, and the intestinal tract is checked.
Step four: after the examination is completed, the bifurcation part is folded, and the colonoscope is taken out.
Further, in the third step, if the observation angle needs to be enlarged, the motor is controlled to rotate reversely, the hollow nut moves to one side of the joint of the bending part and the insertion part, the two bifurcation parts are symmetrically unfolded along opposite directions under the action of the elastic metal strip, the observation angle is enlarged, and the 180-degree large-angle overturning of the camera can be realized at most.
The application has the beneficial effects that:
1. the colon endoscope provided by the application is provided with two cameras which are symmetrically distributed, the visual principle of a person is simulated, the same position in the intestinal tract is observed from two points, the images under different visual angles are obtained, and the three-dimensional information of the feature points can be obtained according to the matching relation of pixels between the images.
2. The colon endoscope is provided with the elastic metal strip, the observation angle of the camera is changed through the elastic deformation of the elastic metal strip, the deformation of the elastic metal strip is controlled through the pressing piece, the large-angle overturning of the camera at 180 degrees can be realized at maximum, and the observation at multiple angles and full visual angles is realized.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application.
FIG. 1 is a schematic view of the overall structure of a colonoscope of the present application;
FIG. 2 is a schematic view of the hose construction of the present application;
FIG. 3 is a schematic view of the cross-section A of FIG. 2 in accordance with the present application;
FIG. 4 is a schematic view of the cross-section B of FIG. 2 in accordance with the present application;
FIG. 5 is a schematic view of the structure of the elastic metal strip in the natural state of the application;
FIG. 6 is a schematic view of the structure of the elastic metal strip of the present application in a folded state;
FIG. 7 is a schematic view of the flexible shaft structure of the present application;
FIG. 8 is a schematic view of the hollow nut structure of the present application;
FIG. 9 is a schematic view of a flexure axis of the present application;
FIG. 10 is a schematic view of an axial structure of an operation part of the present application;
FIG. 11 is a schematic view of the bifurcated portion open configuration of the present application;
wherein: 1. the device comprises an operating part, an inserting part, a bending part, a forked part, a flexible pipe, a flexible shaft, a circular through hole, a rectangular blind hole, a flexible metal strip, a water pipe, a male screw structure, a hollow nut, a female screw structure, a compression structure, a cavity structure, a motor, a cover, a telescopic spring, a light pipe, a pliers pipe and a CCD objective lens pipe.
Detailed Description
It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
As described in the background art, the prior conventional colon endoscope has the technical problems that the visual angle is narrow, the active bending force is insufficient, and the focus on the back of the fold or the deep part of the villus can not be found.
In an exemplary embodiment of the application, as shown in fig. 1-11, a double-head full-view colon endoscope comprises an operation part 1, an insertion part 2 and a bending part 3 which are sequentially connected, wherein the operation part, the insertion part and the bending part comprise a flexible pipe 4 and a flexible shaft 5 which are coaxially distributed, the flexible shaft is positioned in the flexible pipe, the flexible pipe is made of rubber products and has certain flexibility, the flexible shaft is formed by injection molding, the flexible shaft is a steel wire flexible shaft, torque transmission can be realized, and eight circular through holes 6 which penetrate through the operation part, the insertion part and the bending part and are symmetrically distributed along the diameter of a section circle of the flexible pipe are formed in the flexible pipe.
The circular through hole 6 is internally provided with a detection pipeline, the detection pipeline comprises a light pipe 15, a forceps pipe 16, a CCD objective lens pipe 17 and a water pipe 9 which are symmetrically distributed along the diameter of the section of the hose, the light pipe is an optical fiber product with flexible metal armor, and the end position of the light pipe in the bending part is provided with an LED lamp for increasing illumination, so that the observation of intestinal tracts is convenient; the forceps tube comprises a flexible metal armor and a biopsy forceps operating rope wrapped in the flexible metal armor, a biopsy forceps is arranged at the end part of the forceps tube, which is positioned in the bending part, and the biopsy forceps can be used for performing living body sampling on intestinal tracts; the CCD objective tube is a CCD camera cable wrapped with flexible metal armors, and a CCD camera is arranged at the end part of the CCD objective tube, which is positioned in the bending part, and is used for acquiring image information of intestinal tracts; the end part of the water pipe, which is positioned in the bending part, is provided with a spray head, so that a designated area in the intestinal tract can be cleaned.
The hose of bending part cuts along its diameter, forms two bifurcation parts 31, the cross-sectional shape of two bifurcation parts is for being less than semicircular arc, bifurcation part is except having eight pipeline for detection, still along its diameter symmetry add two rectangle blind holes 7 of axial distribution along it, install elastic metal strip 8 in the rectangle blind hole, elastic metal strip is the strip, and its terminal surface shape is the rectangle with rectangle blind hole assorted, and in natural state, elastic metal strip is crooked semicircular, therefore in natural state, elastic metal strip can drive two bifurcation parts and open.
The flexible shaft outer circumference surface of the bending part is provided with an external thread structure 10, the external thread structure is provided with a hollow nut 11, the hollow nut is provided with an internal thread structure 111 of an inner ring and a compression structure 112 of an outer ring, the hollow nut is arranged on the flexible shaft of the bending part through the internal thread structure of the inner ring, the compression structure of the outer ring is two cavity structures 1121 symmetrically distributed along the diameter of the section of the nut, the section of the two cavity structures is an arc which is smaller than a semicircle and matched with the section shape of a bifurcation part, the two bifurcation parts of the hose can extend into the two cavities of the compression structure, the hollow nut moves along the axial direction of the bending part, and the two bifurcation parts can be folded under the action of the compression structure.
The hollow nut 11 is driven by a driving device along the axial movement of the bending part, the driving device is a motor 12 arranged on the operating part, an output shaft of the motor is connected with one end of a flexible shaft in the operating part, the rotation of the output shaft of the motor drives the rotation of an external thread structure at the other end of the flexible shaft through flexible shaft transmission, the hollow nut is driven by a screw nut transmission principle to axially move along the bending part, so that the furcation part is opened and folded, an end cover 13 is arranged on one side of a shell of the motor, which is positioned on the output shaft, concentric fixing holes corresponding to the eight circular through holes are arranged on the end cover, and the eight detection pipelines extend out of the flexible pipe and are extended out of and fixed on the end cover through the fixing holes.
The operation part is provided with eight telescopic springs 14, the telescopic springs are sleeved on the detection pipeline, one end of each telescopic spring is fixedly connected with the end face of the hose of the operation part, the other end of each telescopic spring is fixedly connected with the end cover, the detection pipeline is fixedly connected with the detection pipeline, the end cover is driven to move when the detection pipeline stretches or contracts, the compression or stretching of the springs is realized, and the stretching or shortening of the detection pipeline when the furcation part is furcated and unfolded or folded is further automatically compensated.
The application also discloses a using method of the double-head full-view colon endoscope, which comprises the following steps:
step one: when the colonoscope is positioned outside the body, the hollow nut is positioned at the connecting position of the bending part and the inserting part, and the bifurcation part is opened in a free state under the action of the elastic metal strip.
Step two: the motor of the double-head full-view colon endoscope is controlled to rotate positively to drive the flexible shaft to rotate, the flexible shaft of the bending part is driven to rotate through flexible shaft transmission, the hollow nut is driven to move towards the tail end of the flexible shaft of the bending part through the screw nut until the hollow nut moves to the tail end of the flexible shaft of the bending part, at the moment, the hollow nut compresses the bifurcation part of the bending part to fold the bifurcation part, and the endoscope is operated to enter the intestinal tract of a human body by adopting the using method of the conventional colon endoscope with the minimum diameter.
Step three: in the moving process of the colon endoscope, an operator can clean the appointed area of the intestinal canal through a water pipe, observe and record 180-degree full-angle stereoscopic images by means of two CCD cameras, and can also utilize biopsy forceps to sample living bodies, and the LED lamp can increase illumination and is convenient to observe.
If the observation angle needs to be enlarged, the motor is controlled to rotate reversely, the hollow nut moves to one side of the joint of the bending part and the inserting part, the two bifurcation parts are symmetrically unfolded along opposite directions under the action of the elastic metal strip, the observation angle is enlarged, and the 180-degree large-angle overturning of the CCD camera can be realized at most.
Step four: after the examination is completed, the bifurcation part is bent and folded, and the colonoscope is taken out.
While the foregoing description of the embodiments of the present application has been presented in conjunction with the drawings, it should be understood that it is not intended to limit the scope of the application, but rather, it is intended to cover all modifications or variations within the scope of the application as defined by the claims of the present application.
Claims (4)
1. The double-head full-view colon endoscope is characterized by comprising an operation part, an insertion part and a bending part which are sequentially connected, wherein the insertion part and the bending part are inserted into the intestinal tract of a human body, an operator controls the action of the bending part through the operation part, the insertion part and the bending part respectively comprise a flexible pipe and a flexible shaft which are coaxially distributed, the flexible pipe is positioned in the flexible pipe, eight circular through holes which penetrate through the operation part, the insertion part and the bending part and are symmetrically distributed along the diameter of the circular cross section of the flexible pipe are formed in the flexible pipe, a detection pipeline is arranged in the circular through holes, the flexible pipe is provided with two bifurcation parts, blind holes which are symmetrically arranged are axially increased in the bifurcation parts, an elastic piece is arranged in the blind holes and can drive bifurcation of the two bifurcation parts to open, a compressing piece is sleeved on the bending part, and the operation part drives the compressing piece to move along the axial direction of the bending part through a flexible shaft transmission and a screw nut pair transmission by a driving device so as to control bifurcation opening and furling of the bifurcation parts;
the outer circumferential surface of the flexible shaft of the bending part is provided with an external thread structure, and the pressing piece is connected with the flexible shaft of the bending part in a matched manner through the external thread structure;
the compression piece is a hollow nut and comprises an inner thread structure of an inner ring and a compression structure of an outer ring, wherein the inner thread structure of the inner ring is matched with an outer thread structure on a flexible shaft of a bending part, and the compression structure of the outer ring is provided with two cavity structures symmetrically distributed along the diameter of the section of the nut;
the cross-sectional shape of the two cavity structures is matched with that of the bifurcation part, and the two bifurcation parts of the hose can extend into the two cavities of the compression structure;
the detection pipeline comprises an objective lens pipe, and a camera is arranged at the end part of the objective lens pipe, which is positioned in the bending part;
the operation part is provided with eight telescopic springs sleeved on the detection pipelines, one end of each telescopic spring is fixedly connected with the end face of each hose of the operation part, and the other end of each telescopic spring is fixedly connected with one end of each hose extending out of the eight detection pipelines and is used for automatically compensating the elongation or shortening of the detection pipelines when the forked parts of the bent and forked parts are opened or closed.
2. The dual head full view colonoscope according to claim 1, wherein said detection tube comprises a light pipe, a forceps tube, an objective tube and a water tube;
an illumination device is arranged at the end part of the light pipe, which is positioned in the bending part;
the end part of the forceps tube positioned in the bending part is provided with a biopsy forceps;
the end part of the water pipe, which is positioned in the bending part, is provided with a spray head.
3. The dual-head full view colonoscope according to claim 1, wherein the driving means is a motor, and an output shaft of the motor is fixedly connected with an end portion of the flexible shaft in the operating portion.
4. The dual head full view colonoscope according to claim 1, wherein said resilient member is a resilient metal strip which is curved in a semi-circular shape in its natural state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711001906.5A CN107736869B (en) | 2017-10-24 | 2017-10-24 | Double-head full-view colonoscope and application method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711001906.5A CN107736869B (en) | 2017-10-24 | 2017-10-24 | Double-head full-view colonoscope and application method thereof |
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| CN107736869A CN107736869A (en) | 2018-02-27 |
| CN107736869B true CN107736869B (en) | 2023-10-20 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108742481B (en) * | 2018-06-20 | 2021-04-27 | 北京理工大学 | Capsule robot with asymmetric lateral force induction function |
| CN110074826A (en) * | 2019-05-20 | 2019-08-02 | 温州医科大学附属第一医院 | Biopsy catheter |
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| US9610095B2 (en) * | 2008-08-27 | 2017-04-04 | Spine View, Inc. | Retractor cannula system for accessing and visualizing spine and related methods |
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| TW589170B (en) * | 2002-12-25 | 2004-06-01 | De-Yang Tian | Endoscopic device |
| CN1628603A (en) * | 2003-12-19 | 2005-06-22 | 田德扬 | Inward vision mirror apparatus |
| CN102421384A (en) * | 2009-03-27 | 2012-04-18 | 内球外科股份有限公司 | Cannula with integrated camera and illumination |
| TW201320949A (en) * | 2011-11-24 | 2013-06-01 | Metal Ind Res & Dev Ct | Endoscope |
| CN203914853U (en) * | 2014-06-28 | 2014-11-05 | 吕清林 | A kind of digital stomatology endoscope |
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| CN107736869A (en) | 2018-02-27 |
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