WO2021161497A1 - 超音波内視鏡 - Google Patents

超音波内視鏡 Download PDF

Info

Publication number
WO2021161497A1
WO2021161497A1 PCT/JP2020/005735 JP2020005735W WO2021161497A1 WO 2021161497 A1 WO2021161497 A1 WO 2021161497A1 JP 2020005735 W JP2020005735 W JP 2020005735W WO 2021161497 A1 WO2021161497 A1 WO 2021161497A1
Authority
WO
WIPO (PCT)
Prior art keywords
balloon
opening
tip
ultrasonic endoscope
ultrasonic
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/JP2020/005735
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
仁 平岡
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Olympus Corp
Original Assignee
Olympus Corp
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
Application filed by Olympus Corp filed Critical Olympus Corp
Priority to JP2022500170A priority Critical patent/JP7281596B2/ja
Priority to PCT/JP2020/005735 priority patent/WO2021161497A1/ja
Publication of WO2021161497A1 publication Critical patent/WO2021161497A1/ja
Priority to US17/864,811 priority patent/US12408894B2/en
Anticipated expiration legal-status Critical
Priority to US19/299,681 priority patent/US20250366826A1/en
Ceased legal-status Critical Current

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/12—Diagnosis using ultrasonic, sonic or infrasonic waves in body cavities or body tracts, e.g. by using catheters
    • 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
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/44—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device
    • A61B8/4444—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device related to the probe
    • A61B8/445—Details of catheter construction

Definitions

  • the present invention relates to an ultrasonic endoscope.
  • a liquid such as degassed water is put into a balloon attached so as to cover the outer periphery of the ultrasonic vibrator.
  • a method of injecting and observing in close contact with an observation site such as the digestive tract is known (see, for example, Patent Document 1). After the observation, the liquid in the balloon is sucked from the inside of the balloon via the balloon suction conduit inserted inside the insertion portion.
  • the outlet of the balloon suction pipe line opens toward the side surface of the insertion part.
  • the outlet of the balloon suction pipe is curved, and when cleaning the balloon suction pipe, the tip of the brush inserted from the proximal end side cannot or is difficult to protrude from the opening. Therefore, the conventional ultrasonic endoscope has a problem that the workability at the time of cleaning is not good.
  • the opening of the balloon suction pipe is located on the side surface of the insertion portion, when the liquid is sucked from the inside of the balloon, the balloon may be in close contact with the opening of the balloon suction pipe, resulting in poor contraction. ..
  • the present invention has been made in view of the above, and an object of the present invention is to provide an ultrasonic endoscope having good workability at the time of cleaning a balloon suction pipe and preventing poor contraction of a balloon.
  • the ultrasonic endoscope according to one aspect of the present invention is provided inside an insertion portion to be inserted into a subject, and the tip of the insertion portion is provided.
  • a balloon suction conduit that sucks the liquid inside the balloon that covers the ultrasonic transducer located in, a balloon groove to which the band portion of the balloon can be attached, and a length of the insertion portion located on the tip side of the balloon groove.
  • a hard portion having a first surface that is a surface that intersects in a direction and has an opening that communicates with the balloon suction pipe along the direction in which the balloon suction pipe extends, and the hard portion.
  • a holding portion that is located on the tip side of the ultrasonic tube and holds the ultrasonic vibrator, and a space extending to the opening in a direction orthogonal to the longitudinal direction is formed on the tip side of the opening. It has a part and.
  • the ultrasonic endoscope when the insertion portion is viewed from the tip side, at least a part of the first surface is located outside the holding portion.
  • the insertion portion when the insertion portion is viewed from the tip side, at least a part of the opening is located outside the holding portion.
  • the holding portion is continuous with the second surface along the longitudinal direction and intersects the longitudinal direction.
  • the space has three surfaces, and the space is formed between the balloon attached to the tip of the insertion portion, the first surface, and the third surface.
  • the first surface and the third surface are substantially orthogonal to each other.
  • the space communicates in a direction orthogonal to the longitudinal direction and the direction in which the balloon suction tube extends.
  • the opening is opened in a direction intersecting the longitudinal direction.
  • the ultrasonic endoscope includes a balloon water pipe that feeds liquid inside the balloon that covers the ultrasonic vibrator.
  • FIG. 1 is a schematic view showing a configuration of an ultrasonic endoscope according to an embodiment.
  • FIG. 2 is a perspective view of a tip portion of the ultrasonic endoscope shown in FIG.
  • FIG. 3 is a partial cross-sectional view corresponding to the line AA of FIG.
  • FIG. 4 is a perspective view of the ultrasonic endoscope shown in FIG. 2 as viewed from the side opposite to the opening.
  • FIG. 5 is a view taken along the line B of the ultrasonic endoscope shown in FIG.
  • FIG. 6 is a perspective view of a tip portion of the ultrasonic endoscope according to the first modification.
  • FIG. 7 is a top view of the tip of the ultrasonic endoscope according to the second modification.
  • FIG. 1 is a schematic view showing a configuration of an ultrasonic endoscope according to an embodiment.
  • FIG. 2 is a perspective view of a tip portion of the ultrasonic endoscope shown in FIG.
  • FIG. 3 is a
  • FIG. 8 is an enlarged cross-sectional view of the curved top of the curved portion.
  • FIG. 9 is an enlarged view of the tip portion of FIG.
  • FIG. 10 is an enlarged cross-sectional view of the curved rubber.
  • FIG. 11 is an enlarged cross-sectional view of the curved rubber.
  • FIG. 12 is a cross-sectional view of the tip portion.
  • FIG. 13 is a cross-sectional view corresponding to the line CC of FIG.
  • FIG. 14 is an enlarged perspective view of the screw receiving member.
  • FIG. 15 is an enlarged view of the fixing screw.
  • FIG. 16 is a cross-sectional view of the fixing screw.
  • FIG. 17 is a cross-sectional view of the fixing screw.
  • the present invention can be generally applied to an ultrasonic endoscope capable of observing using a balloon.
  • FIG. 1 is a schematic view showing a configuration of an ultrasonic endoscope according to an embodiment.
  • the ultrasonic endoscope 1 has an insertion unit 2 having an imaging unit arranged at the tip thereof and inserted into a subject, an operation unit 3 connected to the base end side of the insertion unit 2, and the operation unit.
  • a universal cord 4 extending from the side of 3 and an observation device connected to the universal cord 4 to control the ultrasonic endoscope 1 and a light source device for supplying illumination light to the ultrasonic endoscope 1 and the like.
  • the connector portion 5 to be connected to the above is provided.
  • the distal end side (opposite side to the operation unit 3) of the ultrasonic endoscope 1 in the longitudinal direction is the "tip side", and the proximal end side (operation unit 3 side) is. It is referred to as "base end side”.
  • the ultrasonic endoscope 1 is an ultrasonic endoscope for the bronchus or the digestive tract.
  • the insertion portion 2 has, in order from the tip side, a tip portion 2a, a curved portion 2b configured to be bendable according to the operation of the operation portion 3, and a flexible flexible tube portion 2c.
  • the base end of the flexible pipe portion 2c is continuously provided on the tip end side of the operation portion 3.
  • the operation unit 3 is provided with a forceps insertion port 3a for inserting a forceps needle or the like, which is a treatment tool, into the subject.
  • a forceps insertion passage is provided inside the insertion portion 2, and the forceps insertion port 3a serves as an insertion port for the forceps insertion passage. That is, the ultrasonic endoscope 1 is an endoscope through which a treatment tool can be inserted.
  • FIG. 2 is a perspective view of a tip portion of the ultrasonic endoscope shown in FIG.
  • the ultrasonic endoscope 1 includes an ultrasonic vibrator 21, a hard portion 22, a holding portion 23, an illumination lens 24, and an objective lens 25.
  • FIG. 3 is a partial cross-sectional view corresponding to the line AA of FIG.
  • the ultrasonic endoscope 1 includes a balloon suction tube 26.
  • FIG. 3 shows a balloon 6 attached to the tip of the insertion portion 2 so as to cover the ultrasonic vibrator 21.
  • the ultrasonic vibrator 21 is a convex type ultrasonic vibrator, and has a plurality of piezoelectric elements regularly arranged so as to form a convex arc.
  • the ultrasonic vibrator 21 is not limited to the convex type ultrasonic vibrator, and may be a linear type ultrasonic vibrator.
  • the ultrasonic vibrator 21 converts the pulse signal input from the ultrasonic observation device into an ultrasonic pulse and transmits it into the subject. Further, the ultrasonic vibrator 21 converts the ultrasonic echo reflected in the subject into an electrical echo signal and outputs it to the ultrasonic observation device.
  • the hard portion 22 has a balloon groove 221, a first surface 222, and a step portion 223.
  • the band portion 61 of the balloon 6 can be attached to the balloon groove 221.
  • the first surface 222 is a surface located on the tip side of the balloon groove 221 and intersecting the longitudinal direction of the insertion portion 2, and is formed in the balloon suction pipe 26 along the direction in which the balloon suction pipe 26 extends.
  • An opening 222a that communicates is formed. As shown in FIG. 3, the opening 222a opens in a direction intersecting the longitudinal direction of the insertion portion 2. Further, the first surface 222 and the end portion of the opening 222a are substantially orthogonal to each other. This is because if the first surface 222 and the end portion of the opening 222a have an acute angle, the brush protruding from the opening 222a may be damaged.
  • FIG. 4 is a perspective view of the ultrasonic endoscope shown in FIG. 2 as viewed from the side opposite to the opening.
  • the hard portion 22 has an opening 224 located on the tip side of the balloon groove 221 and communicating with a balloon water pipe that feeds liquid into the balloon 6 that covers the ultrasonic vibrator 21. Is formed.
  • the opening 224 may be formed so that a part thereof covers the balloon groove 221 and may be a position where the opening 224 is completely covered by the balloon 6 when the balloon 6 is attached.
  • the holding portion 23 is located on the tip side of the hard portion 22 and holds the ultrasonic vibrator 21.
  • FIG. 5 is a view taken along the line B of the ultrasonic endoscope shown in FIG.
  • the holding portion 23 is a third surface that is continuous with the second surface 231 along the longitudinal direction of the insertion portion 2 and the second surface 231 and intersects the longitudinal direction of the insertion portion 2. It has a surface 232 and.
  • the first surface 222 and the third surface 232 are substantially orthogonal to each other.
  • the term “substantially orthogonal” means that the angle formed by the first surface 222 and the third surface 232 is, for example, 60 ° or more, but more preferably 80 ° or more.
  • a space 233 is formed between the balloon 6, the first surface 222, and the third surface 232.
  • This space 233 is formed on the tip end side of the opening 222a, and extends to the opening 222a in a direction orthogonal to the longitudinal direction of the insertion portion 2. Further, the space 233 communicates with the longitudinal direction and the direction orthogonal to the direction in which the balloon suction pipe 26 extends (the direction orthogonal to the paper surface of FIG. 3).
  • the illumination lens 24 irradiates the subject with the illumination light emitted by the light source device via the light guide. Further, a chamfered portion that has been slightly chamfered is formed on the surface of the illumination lens 24.
  • the illumination lens 24 is located in a stepped portion 224, which is a recess formed in the inclined surface 223. In other words, the illumination lens 24 is located at the stepped portion 224, which is one step lower than the objective lens 25 formed on the inclined surface 223. As a result, the light emitted from the chamfered portion of the illumination lens 24 is prevented from entering the objective lens 25 and causing flare.
  • the step portion 223 is a recess having an opening on the tip side. As a result, the liquid or the like adhering to the illumination lens 24 does not collect in the step portion 223 but flows out from the opening direction, so that the illumination light is prevented from being scattered by the liquid.
  • the objective lens 25 is formed on an inclined surface 223.
  • the objective lens 25 collects the light reflected in the subject and forms an image on the image pickup surface of the image pickup device.
  • the image signal generated in the image sensor is transmitted to the endoscopic observation device via the signal cable.
  • the balloon suction conduit 26 is provided inside the insertion portion 2 to be inserted into the subject, and sucks the liquid inside the balloon 6 covering the ultrasonic vibrator 21 located at the tip of the insertion portion 2.
  • the tip of the brush inserted from the proximal end side is projected from the opening 222a. be able to. Therefore, in the ultrasonic endoscope 1, the brush inserted into the balloon suction tube 26 from the proximal end side can be projected from the opening 222a to clean the inside of the balloon suction tube 26. Good sex.
  • the space 233 is formed, when the liquid in the balloon 6 is sucked by the balloon suction pipe 26, the balloon 6 sticks to the opening 222a and the balloon 6 contracts poorly. Is prevented.
  • the space 233 communicates with the longitudinal direction and the direction orthogonal to the direction in which the balloon suction pipe 26 extends (the direction orthogonal to the paper surface of FIG. 3).
  • the liquid in the balloon 6 flows into the opening 222a from each of the communicating directions, so that the balloon 6 is prevented from sticking to the opening 222a.
  • the first surface 222 and the third surface 232 are substantially orthogonal to each other, the liquid in the balloon 6 easily flows into the opening 222a, which is more preferable.
  • the insertion portion 2 when the insertion portion 2 is viewed from the tip side, it is preferable that at least a part of the first surface 222 is located outside the holding portion 23. Since a part of the first surface 222 is located outside the holding portion 23, a step is formed between the first surface 222 and the holding portion 23, so that the balloon 6 sticks to the opening 222a. Is prevented.
  • the opening 222a when the insertion portion 2 is viewed from the tip side, it is preferable that at least a part of the opening 222a is located outside the holding portion 23. Since a part of the opening 222a is located outside the holding portion 23, it is possible to prevent the brush protruding from the opening 222a from hitting the holding portion 23 and hindering the advancement and retreat of the brush. Is good. Similarly, in the embodiment, since the opening 222a is opened in the direction intersecting the longitudinal direction of the insertion portion 2 (the left-right direction in FIG. 3), the brush protruding from the opening 222a hits the holding portion 23. Since it is prevented that the brush moves forward and backward, workability during cleaning is good.
  • FIG. 6 is a perspective view of a tip portion of the ultrasonic endoscope according to the first modification.
  • an opening 222Aa communicating with the balloon suction pipe and an opening 222Ab communicating with the balloon water pipe are formed on the first surface 222A of the hard portion 22A.
  • the opening 222Aa of the balloon suction pipe and the opening 222Ab of the balloon water supply pipe may be provided on one side.
  • the brush can be projected from the opening 222Aa or the opening 222Ab for cleaning in both the balloon suction pipe and the balloon water pipe.
  • FIG. 7 is a top view of the tip of the ultrasonic endoscope according to the second modification.
  • the cross section of the balloon 6 attached to the tip of the insertion portion 2 is shown by a broken line.
  • the hard portion 22B is formed with first surfaces 222B on both side surfaces.
  • One first surface 222B is formed with an opening communicating with the balloon suction pipe, and the other first surface 222B is formed with an opening communicating with the balloon water pipe.
  • the holding portion 23B is formed with a third surface 232B and a space 233B on both side surfaces.
  • the brush can be projected from the opening for cleaning in both the balloon suction pipe and the balloon water pipe.
  • the hard portion 22 and the holding portion 23 are separate bodies.
  • FIG. 8 is an enlarged cross-sectional view of the curved top of the curved portion.
  • the curved portion 2b includes a first frame 101 located at the tip thereof, an operation wire 102 that transmits an operation received by the operation unit 3 to the curved portion 2b, and a rivet that connects the curved piece in a bendable manner. 103 and.
  • FIG. 9 is an enlarged view of the tip portion of FIG.
  • the curved portion 2b has a blade 104 that covers the outer periphery of the curved portion 2b, and a blade end fixing portion 105 that fixes the tip of the blade 104 to the first frame 101.
  • the first frame 101 has a small diameter portion 101a having a smaller diameter than the tip portion having the largest diameter.
  • the blade end fixing portion 105 is located at the small diameter portion 101a.
  • the diameter of the curved portion 2b can be reduced as compared with the case where the blade end fixing portion 105 is located at the tip portion having the largest diameter of the first frame 101, and the burden on the patient at the time of insertion can be reduced. can.
  • FIG. 10 is an enlarged cross-sectional view of the curved rubber.
  • the curved rubber 106 is attached to the outer periphery of the blade 104 and watertightly seals the inside of the insertion portion 2.
  • the thickness of the curved rubber 106 is t1 ⁇ t2 ⁇ t3.
  • the portion of the curved rubber 106 having a thickness of t1 corresponds to the tip portion having the largest diameter of the first frame 101.
  • the portion of the curved rubber 106 having a thickness of t2 corresponds to the small diameter portion 101a and its base end side.
  • the portion of the curved rubber 106 having a thickness of t3 corresponds to a portion having a uniform thickness on the proximal end side.
  • the curved portion 2b is uniformly curved from the base end side to the tip end during the bending operation.
  • the proximal end side tends to be curved. Therefore, in the curved rubber 106, by adjusting the thickness of the curved rubber 106, the curved portion 2b is uniformly curved from the base end side to the tip end during the bending operation.
  • FIG. 11 is an enlarged cross-sectional view of the curved rubber.
  • the thickness of the curved rubber 106A is t1 ⁇ t2, t4 ⁇ t3.
  • the portion of the curved rubber 106 having a thickness of t4 corresponds to a portion where the base end of the blade 104 is fixed to the first frame 101. In this way, the base end side of the curved rubber 106A may be thinned, and the diameter of the curved portion 2b may be reduced.
  • FIG. 12 is a cross-sectional view of the tip portion.
  • a groove portion 234 is formed on the base end side of the balloon groove 221 in the holding portion 23, and the screw receiving member 27 is fitted in the groove portion 234.
  • the screw receiving member 27 By locating the screw receiving member 27 on the proximal end side of the balloon groove 221 the hard length of the tip of the insertion portion 2 (the length of the hard portion having no flexibility) can be shortened, which is a burden on the patient. Can be reduced.
  • FIG. 13 is a cross-sectional view corresponding to line CC of FIG.
  • the holding portion 23 is fixed to the hard portion 22 by screwing the fixing screw 28 into the screw receiving member 27. Further, the fixing screw 28 is sealed by the hole filling member 29.
  • FIG. 14 is an enlarged perspective view of the screw receiving member.
  • the screw receiving member 27 is formed with a female screw portion 27a into which the fixing screw 28 is screwed and a screw receiving portion 27b in contact with the fixing screw 28.
  • the screw receiving member 27 is made of, for example, a metal or an alloy.
  • FIG. 15 is an enlarged view of the fixing screw.
  • the fixing screw 28 is formed with a male screw portion 28a that is screwed with the female screw portion 27a and an abutting surface 28b that is in contact with the screw receiving portion 27b.
  • the male screw portion 28a and the abutting surface 28b are integrally formed.
  • the fixing screw 28 is made of, for example, a metal or an alloy.
  • the abutting surface 28b comes into contact with the screw receiving portion 27b.
  • the metal screw receiving member 27 and the fixing screw 28 come into contact with each other, so that the screw receiving member 27 and the fixing screw 28 are strongly fastened. Further, it is prevented that the tip of the fixing screw 28 comes into contact with the holding portion 23 to cause distortion or the like.
  • FIG. 16 is a cross-sectional view of the fixing screw.
  • the fixing screw 28A has a screw 281A on which the male screw portion 281Aa is formed and a sleeve 282A on which the abutting surface 282Aa is formed.
  • the sleeve 282A for abutting may be fixed to the outer circumference of the screw 281A.
  • FIG. 17 is a cross-sectional view of the fixing screw.
  • the fixing screw 28B has a screw 281B and a sleeve 282B on which a male screw portion 282Ba and an abutting surface 282Bb are formed.
  • the sleeve 282B for screwing and abutting may be fixed to the outer circumference of the screw 281B.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Medical Informatics (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Physics & Mathematics (AREA)
  • Molecular Biology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Optics & Photonics (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Endoscopes (AREA)
PCT/JP2020/005735 2020-02-14 2020-02-14 超音波内視鏡 Ceased WO2021161497A1 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2022500170A JP7281596B2 (ja) 2020-02-14 2020-02-14 超音波内視鏡
PCT/JP2020/005735 WO2021161497A1 (ja) 2020-02-14 2020-02-14 超音波内視鏡
US17/864,811 US12408894B2 (en) 2020-02-14 2022-07-14 Ultrasound endoscope
US19/299,681 US20250366826A1 (en) 2020-02-14 2025-08-14 Ultrasound endoscope

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2020/005735 WO2021161497A1 (ja) 2020-02-14 2020-02-14 超音波内視鏡

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US17/864,811 Continuation US12408894B2 (en) 2020-02-14 2022-07-14 Ultrasound endoscope

Publications (1)

Publication Number Publication Date
WO2021161497A1 true WO2021161497A1 (ja) 2021-08-19

Family

ID=77291737

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2020/005735 Ceased WO2021161497A1 (ja) 2020-02-14 2020-02-14 超音波内視鏡

Country Status (3)

Country Link
US (2) US12408894B2 (https=)
JP (1) JP7281596B2 (https=)
WO (1) WO2021161497A1 (https=)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021193404A1 (ja) * 2020-03-26 2021-09-30 富士フイルム株式会社 超音波内視鏡
WO2024250163A1 (zh) * 2023-06-06 2024-12-12 王亚磊 一种微探头超声内镜水囊

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019031465A1 (ja) * 2017-08-08 2019-02-14 オリンパス株式会社 超音波内視鏡
JP2020000647A (ja) * 2018-06-29 2020-01-09 富士フイルム株式会社 超音波診断装置、及び、超音波診断装置の作動方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5471988A (en) * 1993-12-24 1995-12-05 Olympus Optical Co., Ltd. Ultrasonic diagnosis and therapy system in which focusing point of therapeutic ultrasonic wave is locked at predetermined position within observation ultrasonic scanning range
US20030060813A1 (en) * 2001-09-22 2003-03-27 Loeb Marvin P. Devices and methods for safely shrinking tissues surrounding a duct, hollow organ or body cavity
JP3894092B2 (ja) * 2002-10-18 2007-03-14 フジノン株式会社 超音波内視鏡
JP4217485B2 (ja) 2003-01-06 2009-02-04 オリンパス株式会社 超音波内視鏡
JP2008200355A (ja) * 2007-02-21 2008-09-04 Olympus Medical Systems Corp 超音波診断装置
US9259559B2 (en) * 2009-02-23 2016-02-16 Futurematrix Interventional, Inc. Balloon catheter pressure relief valve
CN109475346B (zh) * 2016-06-29 2021-12-28 奥林巴斯株式会社 超声波内窥镜

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019031465A1 (ja) * 2017-08-08 2019-02-14 オリンパス株式会社 超音波内視鏡
JP2020000647A (ja) * 2018-06-29 2020-01-09 富士フイルム株式会社 超音波診断装置、及び、超音波診断装置の作動方法

Also Published As

Publication number Publication date
US20220361846A1 (en) 2022-11-17
JP7281596B2 (ja) 2023-05-25
US20250366826A1 (en) 2025-12-04
JPWO2021161497A1 (https=) 2021-08-19
US12408894B2 (en) 2025-09-09

Similar Documents

Publication Publication Date Title
JP4618410B2 (ja) 超音波内視鏡
JP3619424B2 (ja) ラジアル走査前方視型超音波内視鏡
US6149598A (en) Ultrasound endoscope
US7488288B2 (en) Ultrasonic endoscope
JP6594151B2 (ja) 超音波内視鏡
US20250366826A1 (en) Ultrasound endoscope
US20200107708A1 (en) Endoscope
CN109069123B (zh) 内窥镜
JP4484044B2 (ja) 超音波内視鏡
JP6744831B2 (ja) 処置具チャンネル及び内視鏡
JPWO2019102679A1 (ja) 内視鏡の先端部および内視鏡
JP4725162B2 (ja) 超音波内視鏡
JP4248909B2 (ja) 超音波内視鏡
JP3017754B2 (ja) 内視鏡
JPH07194594A (ja) 体内検査装置の処置具挿通路
CN116687321A (zh) 内窥镜
JP6850694B2 (ja) 内視鏡及び内視鏡の製造方法
JP4488203B2 (ja) 超音波内視鏡
JP7223871B2 (ja) 超音波内視鏡
JP2003325527A (ja) 超音波内視鏡の先端部
JP3619423B2 (ja) ラジアル走査前方視型超音波内視鏡
JP2019041884A (ja) 超音波内視鏡
JPH05168585A (ja) 内視鏡の先端部
JP4535252B2 (ja) 超音波内視鏡
JP5479762B2 (ja) 超音波内視鏡

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20919193

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2022500170

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20919193

Country of ref document: EP

Kind code of ref document: A1