WO2022255805A1 - Tube de cholangioscopie - Google Patents

Tube de cholangioscopie Download PDF

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Publication number
WO2022255805A1
WO2022255805A1 PCT/KR2022/007805 KR2022007805W WO2022255805A1 WO 2022255805 A1 WO2022255805 A1 WO 2022255805A1 KR 2022007805 W KR2022007805 W KR 2022007805W WO 2022255805 A1 WO2022255805 A1 WO 2022255805A1
Authority
WO
WIPO (PCT)
Prior art keywords
tube
endoscope
bile duct
various embodiments
tube body
Prior art date
Application number
PCT/KR2022/007805
Other languages
English (en)
Korean (ko)
Inventor
조광범
Original Assignee
계명대학교 산학협력단
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from KR1020220059447A external-priority patent/KR20220163261A/ko
Application filed by 계명대학교 산학협력단 filed Critical 계명대학교 산학협력단
Publication of WO2022255805A1 publication Critical patent/WO2022255805A1/fr

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Classifications

    • 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
    • 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
    • A61B1/01—Guiding arrangements therefore
    • 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
    • A61B1/012—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 characterised by internal passages or accessories therefor
    • A61B1/015—Control of fluid supply or evacuation
    • 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
    • A61B1/273—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 upper alimentary canal, e.g. oesophagoscopes, gastroscopes

Definitions

  • the present invention relates to a tube for assisting in the insertion of a bile duct endoscope capable of observing the bile duct.
  • Biliary endoscopy made it possible to diagnose and treat biliary tract diseases under direct vision.
  • a small-bore endoscope is inserted through a transhepatic bile duct drainage tube, and 2) a mother-and-child method using a mother scope and a baby scope. -baby system) to perform bile duct examination, and 3) direct per-oral cholangioscopy to insert a small-diameter endoscope through the gastro-duodenum to the papillary ampulla of the duodenum without a hat method (direct per-oral cholangioscopy).
  • direct per-oral cholangioscopy direct per-oral cholangioscopy
  • percutaneous transhepatic cholangioendoscopy is highly invasive, requires intrahepatic bile duct dilatation, can be performed at least 3-5 days after insertion of a percutaneous transhepatic cholangioduct, and causes a lot of radiation exposure to both patients and medical staff, and is relatively high. There are many limitations to the procedure due to the occurrence of complications.
  • the mother-and-child method of oral biliary endoscopy is performed by inserting the mother endoscope into the duodenum, performing endoscopic sphincterotomy (EST) on the papillary ampulla, and then inserting the direct-view endoscope into the biliary tract through the forceps hole of the side-view mother endoscope. It is a method of trying to observe and treat lesions.
  • the Spyglass system (Boston Scientific, USA) is a cholangioscopic method using an innovative single-use endoscope, which enables real-time direct observation of the inside of the bile duct and biopsy under direct view, and has made great progress in diagnostic methods in the field of cholangioscopic endoscopy.
  • Another method, the direct insertion of a cholangioscopic endoscope using a small bore endoscope is a method of inserting an endoscope into the bile duct through the gastroduodenal bend. It's too much trouble to use.
  • the present invention is suitable for disposable use due to its low manufacturing cost and simple manufacturing, can use an existing small-bore endoscope device, and uses an existing small-bore endoscope to capture the inside of the bile duct with clear image quality.
  • An object of the present invention is to provide a bile duct endoscope tube that assists insertion into the bile duct by inserting it into the duodenum.
  • a bile duct endoscope tube includes a tube body formed with a first tube end and a second tube end, wherein the tube body includes an observation hole formed adjacent to the first tube end, and the It may include an endoscope injection part formed adjacent to the second tube end.
  • a first endoscope may be inserted through the second tube end.
  • At least a portion adjacent to the first tube end portion may be bent at a predetermined angle.
  • the tube body includes an air injection part formed adjacent to the second tube end and a balloon disposed adjacent to the first tube end, and the balloon may be connected to the air injection part.
  • the volume of the balloon may be increased through the gas injected through the air injection unit.
  • the tube body may further include an injection hole, and the injection hole may be formed spaced apart from the second tube end toward the first tube end by a predetermined distance.
  • a second endoscope may be inserted through the injection hole.
  • the second endoscope may protrude through the observation hole.
  • a stopper coupled to one end of the tube may be further included, and a guide hole may be formed in the stopper.
  • graduations may be formed in the tube in the longitudinal direction.
  • the bile duct endoscope tube of the present invention is inexpensive to manufacture, convenient to manufacture, suitable for disposable use, relatively easy to assist the endoscope to enter the bile duct, and can use existing small-bore endoscopic devices,
  • the inside of the bile duct can be photographed with clear image quality, and it can induce a biopsy and treatment of lesions inside the bile duct under direct vision.
  • the tube is easy to store, and is formed in a three-dimensional shape corresponding to the shape of the internal organs of the human body, so that it can be used without significant stimulation inside the human body, and is formed in a gentle curve. It can be placed inside the human body without damaging the mucous membrane of the gastrointestinal tract, and the camera of the endoscopic device passing through the tube can be moved smoothly to the duodenum without being damaged.
  • FIG. 1 illustrates a state in which a bile duct endoscope tube is disposed inside a human body, according to various embodiments of the present disclosure.
  • FIG. 2 illustrates a bile duct endoscope tube, in accordance with various embodiments of the present disclosure.
  • FIG 3 illustrates a first tube end of a cholangioendoscopic tube, according to various embodiments of the present disclosure.
  • FIG. 4 shows a cholangioendoscopic tube deployed in the stomach and duodenum of a human body, according to various embodiments of the present disclosure.
  • FIG. 5 illustrates a second tube end of a cholangioendoscopic tube, according to various embodiments of the present disclosure.
  • FIG. 6 illustrates one embodiment of a stopper coupled to a bile duct endoscope tube, in accordance with various embodiments of the present disclosure.
  • FIG. 7 illustrates another embodiment of a stopper coupled to a bile duct endoscope tube, in accordance with various embodiments of the present disclosure.
  • FIG. 1 illustrates a state in which a bile duct endoscope tube is disposed inside a human body, according to various embodiments of the present disclosure.
  • the bile duct endoscope tube 10 is inserted into the human body.
  • the bile duct endoscope tube 10 may be inserted through the oral cavity of the human body, pass through the esophagus and stomach, and reach the duodenum.
  • the bile duct endoscope tube 10 may include a tube body 100 .
  • the material of the tube body 100 is elastic and may be made of a material that can be bent.
  • the material of the tube body 100 is silicone (Silicone), silicone rubber (Silicone rubber), polystyrene (PS), polypropylene (PP), polyethylene (PE), polypropylene (Polypropylene , PP), polyvinyl chloride (PVC), styrene butadiene copolymer (SBC), rubber, latex, and the like.
  • the length of the bile duct endoscope tube 10 may be approximately 1 m.
  • the outer diameter of the bile duct endoscope tube 10 may be approximately 10 to 20 mm. A description of the bile duct endoscope tube 10 will be described with reference to FIG. 2 .
  • FIG. 2 illustrates a bile duct endoscope tube, in accordance with various embodiments of the present disclosure.
  • 3 illustrates a first tube end of a cholangioendoscopic tube, according to various embodiments of the present disclosure.
  • 4 shows a cholangioendoscopic tube deployed in the stomach and duodenum of a human body, according to various embodiments of the present disclosure.
  • the cholangioendoscopic tube 10 and tube body 100 shown in FIGS. 2, 3, and 4 may be the same as or similar to the cholangioendoscopic tube 10 and tube body 100 shown in FIG. 1 . Therefore, description of the same configuration may be omitted.
  • the bile duct endoscope tube 10 will be described with reference to FIGS. 2, 3, and 4.
  • the bile duct endoscope tube 10 is made of an elastic material, and is bent according to the shape of the internal organs of the human body during an endoscopic procedure from the oral cavity to the duodenum (eg, the duodenum 1200 of FIG. 4), so that the pharynx
  • the upper, middle, lower and upper esophageal junction bends of the esophagus through the negative bends, the bends of each part of the stomach (e.g., the stomach 1100 of FIG. 4), the bends of the anterior part of the stomach, the pyloric bends that form the gastro-duodenal boundary, and the second part of the duodenum.
  • the shape of the lumen of the tube is not deformed, so that the endoscope device can effectively enter the human body.
  • the bile duct endoscope tube 10 is disposed from the oral cavity to the duodenum 1200, the second part, the third part, or the fourth part, and the bile duct endoscope tube 10 is introduced from the first tube end 101.
  • the endoscopic device is guided up to the observation hole 200, and the bile duct (eg, the bile duct 1320 of FIG. 4) is passed through the nipple enlargement portion (eg, nipple enlargement portion 1310 of FIG. 4) located around the observation hole 200. You can directly photograph the inside of the .
  • the bile duct endoscope tube 10 is flexible and can be gently bent so that the endoscope device can reach the observation hole 200 without being blocked or damaged without a sudden bend of the tube.
  • the bile duct endoscope tube 10 includes a first tube end 101, a second tube end 102, a first bend 110, a second bend 120, an observation hole 200, an injection It may include a hole 210, a balloon 300, an endoscope injection unit 410, and an air injection unit 420.
  • the first tube end 101 may be first inserted into the human body through the oral cavity of the human body to reach the duodenum 1200, and when the first tube end 101 reaches the duodenum 1200
  • the second tube end 102 may be placed adjacent to the oral cavity of a human body.
  • the first tube end 101 of the tube body 100 is inserted through the oral cavity of the human body while the upper gastrointestinal endoscope is mounted and can reach the duodenum 1200, and the shape of the tube body 100 is such that human organs are
  • the shape of the passage to be formed can be formed in a gentle and optimal three-dimensional curved shape.
  • the first bent portion 110 may be disposed adjacent to the duodenum 1200 of the human body, and the second bent portion ( 120) may be placed adjacent to the stomach 1100 of the human body.
  • the first bent portion 110 may be formed to be bent at approximately 80 degrees to 110 degrees.
  • the degree of bending of the first curved portion 110 may be preferably 98 degrees.
  • the first tube end portion 101 of the cholangioendoscopic tube 10 may be disposed to correspond to a rapidly bent portion from the stomach 1100 to the duodenum 1200. .
  • the observation hole 200 when the bile duct endoscope tube 10 is inserted into the human body (the operator) as intended by the user (operator), the observation hole 200 may be disposed adjacent to the nipple enlargement 1310, and the balloon 300 ) can be placed adjacent to the duodenal bulb.
  • the observation hole 200 is formed in the tube body 100 so that a digestive endoscopy device passing through the inside of the tube can observe the inside of the bile duct 1320 through the observation hole 200 or through the observation hole 200 in the tube. It can be an opening.
  • Observation hole 200 may be formed at a position spaced apart from the distal end of the tube body 100 by a predetermined distance.
  • the observation hole 200 may be formed in the tube body 100 so as to be disposed inside between the second and third parts of the duodenum 1200, preferably the duodenum ( It may be formed to face the nipple enlargement portion 1310 located at 1200.
  • the shape of the observation hole is not limited, but may be formed in a polygonal shape such as a circle, an ellipse, a rectangle, a triangle, or the like, and when the observation hole is circular, the diameter may be approximately 2 mm to 11 mm. .
  • the digestive endoscope can enter and exit.
  • the balloon 300 may be connected to the air injection unit 420 disposed adjacent to the second tube end 102 of the bile duct endoscope tube 10 .
  • the air injection unit 420 may be used as a passage through which air is injected from the outside, and air may be delivered to the balloon 300 . Air is transferred from the air injection unit 420 to the balloon 300, and the volume of the balloon 300 may increase. As the volume of the balloon 300 increases, the balloon 300 may be fixed in contact with the duodenum. The balloon 300 may expand or contract uniformly along the ridge of the tube body 100 .
  • the balloon 300 When the balloon 300 is placed in the duodenum 1200 and inflated by the inflow of air, it can be fixed in contact with the duodenum along the circumference, and the tube body 100 is stably in the duodenum 1200 by the balloon 300. can be placed. At this time, the endoscope device passing through the duodenum 1200 can easily reach the observation hole 200 along the inside of the bile duct endoscope tube 10 .
  • the tube body 100 may include an inner tube (not shown) through which air flows into or out of the balloon 300 .
  • An inner tube (not shown) may be disposed on one side of the tube body 100 along the longitudinal direction of the tube body 100, and one end of the inner tube (not shown) may be connected to the balloon 300. The other end of the inner tube (not shown) may be connected to the air injection unit 420 .
  • the normal upper endoscope inserted into the human body together with the tube body 100 can be discharged out of the human body.
  • the length of the tube body 100 inserted into the human body is shortened, and the human body
  • the tube body 100 inserted therein may be arranged in a form close to a straight line.
  • the length of the tube body 100 pulled out of the human body may be approximately 10 cm to 30 cm.
  • the length of the tube body 100 being pulled may vary depending on the body structure of the human body (pisisulja). As the tube body 100 is pulled, the injection hole 210 formed in the tube body 100 may be exposed outside the human body.
  • the injection hole 210 may be formed at a position approximately 10 cm to 30 cm apart from the second tube end 102 .
  • the injection hole 210 can be placed inside the human body, and after the volume of the balloon 300 increases, the tube body 100 is removed by the user (operator).
  • the injection hole 210 may be exposed to the outside of the human body (the person being treated).
  • the digestive endoscope may be inserted into the tube body 100 through the injection hole 210 exposed to the outside of the human body (the person to be treated).
  • the digestive endoscope inserted into the tube body 100 through the injection hole 210 may approach the first tube end 101 along the tube body 100 .
  • the digestive endoscope may be adjacent to the observation hole 200 formed adjacent to the first tube end 101 .
  • a digestive endoscope approaching adjacent to the observation hole 200 may observe the enlarged nipple 1310 through the observation hole 200 .
  • the digestive endoscope may pass through the observation hole 200 and be inserted into the bile duct 1320 through the nipple ampulla 1310 .
  • the digestive endoscope inserted into the bile duct 1320 may perform various procedures in the bile duct 1320 according to a user's (operator's) manipulation.
  • 5 illustrates a second tube end of a cholangioendoscopic tube, according to various embodiments of the present disclosure.
  • 6 illustrates one embodiment of a stopper coupled to a bile duct endoscope tube, in accordance with various embodiments of the present disclosure.
  • 7 illustrates another embodiment of a stopper coupled to a bile duct endoscope tube, in accordance with various embodiments of the present disclosure.
  • the tube body 100, the second tube end 102, the injection hole 210, the endoscope injection unit 410, and the air injection unit 420 shown in FIGS. 5, 6, and 7 are shown in FIG. 1,
  • the same as or similar to the tube body 100, the second tube end 102, the injection hole 210, the endoscope injection part 410, and the air injection part 420 shown in FIGS. 2, 3, and 4 can do. Therefore, description of the same configuration may be omitted.
  • description will be made with reference to FIGS. 5, 6, and 7 .
  • a stopper 500 coupled to the tube body 100 adjacent to the first tube end 101 of the tube body 100 may be further included.
  • the stopper 500 may be fixed by fitting with the first tube end 101 of the tube body 100.
  • air leakage inside the tube body 100 is prevented, and the air inside the tube body 100 leaks to the outside of the tube body 100 during an endoscope. It is possible to prevent a problem in which the inner surfaces of (100) come into contact with each other and stick to each other.
  • the stopper 500 may be formed in a form surrounding the first tube end 101 of the tube body 100 or inserted into the inlet of the tube body 100 to block the inlet by twisting. have.
  • a guide hole 510 communicating the outside and inside of the tube body 100 is formed in the stopper 500 so that an endoscope device can be introduced through the guide hole 510 .
  • graduations may be formed on the outer surface of the tube body 100 along the longitudinal direction, and the inserted length of the tube inserted into the human body may be confirmed through the graduations.
  • a radiation marker may be attached to the tube body 100 at predetermined intervals. Since the radiation marker can transmit light, it can be checked whether each bent part of the tube disposed in the patient's internal organs is disposed in an appropriate position.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Biomedical Technology (AREA)
  • Medical Informatics (AREA)
  • Optics & Photonics (AREA)
  • Pathology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Biophysics (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Gastroenterology & Hepatology (AREA)
  • Endoscopes (AREA)

Abstract

Un tube de cholangioscopie selon divers modes de réalisation de la présente invention peut comprendre un corps de tube ayant une première extrémité de tube et une seconde extrémité de tube formée à l'intérieur de celui-ci, le corps de tube comprenant : un trou d'observation formé de manière adjacente à la première extrémité de tube; et une partie d'insertion d'endoscope formée adjacente à la seconde extrémité de tube.
PCT/KR2022/007805 2021-06-02 2022-06-02 Tube de cholangioscopie WO2022255805A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR10-2021-0071730 2021-06-02
KR20210071730 2021-06-02
KR1020220059447A KR20220163261A (ko) 2021-06-02 2022-05-16 담관 내시경 튜브
KR10-2022-0059447 2022-05-16

Publications (1)

Publication Number Publication Date
WO2022255805A1 true WO2022255805A1 (fr) 2022-12-08

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Application Number Title Priority Date Filing Date
PCT/KR2022/007805 WO2022255805A1 (fr) 2021-06-02 2022-06-02 Tube de cholangioscopie

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WO (1) WO2022255805A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008035909A (ja) * 2006-08-01 2008-02-21 Olympus Medical Systems Corp 内視鏡用挿入補助具
US20110230716A1 (en) * 2009-06-22 2011-09-22 Olympus Medical Systems Corp. Endoscope cleaning sheath
JP2013000346A (ja) * 2011-06-16 2013-01-07 Fujifilm Corp 内視鏡用挿入補助具
KR101849489B1 (ko) * 2014-06-25 2018-04-16 맥케이 메모리얼 호스피탈 극세경 내시경 보조 시스템 및 사용 방법
KR20200095991A (ko) * 2019-02-01 2020-08-11 주식회사 케이메디시스 내시경 결합 장치

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008035909A (ja) * 2006-08-01 2008-02-21 Olympus Medical Systems Corp 内視鏡用挿入補助具
US20110230716A1 (en) * 2009-06-22 2011-09-22 Olympus Medical Systems Corp. Endoscope cleaning sheath
JP2013000346A (ja) * 2011-06-16 2013-01-07 Fujifilm Corp 内視鏡用挿入補助具
KR101849489B1 (ko) * 2014-06-25 2018-04-16 맥케이 메모리얼 호스피탈 극세경 내시경 보조 시스템 및 사용 방법
KR20200095991A (ko) * 2019-02-01 2020-08-11 주식회사 케이메디시스 내시경 결합 장치

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