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WO2019075707A1 - Endoscope à large canal pour insertion droite - Google Patents

Endoscope à large canal pour insertion droite Download PDF

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Publication number
WO2019075707A1
WO2019075707A1 PCT/CN2017/106955 CN2017106955W WO2019075707A1 WO 2019075707 A1 WO2019075707 A1 WO 2019075707A1 CN 2017106955 W CN2017106955 W CN 2017106955W WO 2019075707 A1 WO2019075707 A1 WO 2019075707A1
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WO
WIPO (PCT)
Prior art keywords
handle
instrument
channel
catheter
endoscope
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/CN2017/106955
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English (en)
Chinese (zh)
Inventor
周震华
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.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to PCT/CN2017/106955 priority Critical patent/WO2019075707A1/fr
Publication of WO2019075707A1 publication Critical patent/WO2019075707A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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

Definitions

  • the present invention relates to the field of medical devices, and more particularly to a large-channel straight insertion endoscope.
  • Application No. CN200920083433.2 Utility Model discloses a three-channel bendable steering soft and rigid combined endoscope, including a hard conduit, a soft conduit, a soft and hard conduit positioning device, an image mounted in a soft conduit, and an illumination source fiber.
  • a laser fiber/surgical instrument mounted in a flexible catheter comprising a steering wire that controls the steering of the soft catheter within the flexible catheter, the soft catheter passing through the catheter connection block and the image and illumination source fiber channel, the laser fiber/surgical instrument channel, and the steering wire Channel connection, image and illumination source fiber is detachably mounted in the image and illumination source fiber channel through the fiber connection mechanism; the laser fiber/surgical instrument is detachably mounted in the laser fiber/surgical instrument channel through the fiber connection mechanism;
  • the steering steering wire is connected to a curved steering control mechanism that is fixed in the steering wire passage.
  • the utility model can fix the optical fiber and the surgical instrument in the endoscope, and obtain a stable image.
  • the invention of the application No. CN201110287464.1 provides a disposable two-channel endoscope sheath comprising a sheath consisting of a separate speculum cavity and an instrument channel, the front end of the instrument channel being open, the speculum cavity and There is also a dialing wire passage between the instrument passages, a dialing wire passes through the dialing wire passage and a part of the front and rear portions thereof are exposed to the dialing wire passage, and a dialing member is connected to the front end of the dialing wire; the dialing member is a roller member Or an inverted "concave" shaped wire member.
  • the endoscope according to the above prior art is susceptible to damage to the optical fiber when the optical fiber is inserted, and the internal dimensions of the instrument channel are limited, and it is impossible to simultaneously extend into two or more medical instruments through one instrument channel while performing the surgical operation. low efficiency.
  • the present invention discloses a large-channel straight-through endoscope comprising: an insertion portion including an insertion catheter and a distal end head fixed to the front end of the insertion catheter, the apex head being provided with an instrument catheter mounting channel for the insertion of the instrument catheter and Installing a camera module mounting channel of the camera module; the operating portion is connected to the end of the insertion portion by a rigid connecting member, including a handle and a handle at an angle to the handle, and the back end of the handle is provided with an interface socket for connecting the display device
  • the front end surface of the insertion end portion of the insertion portion is provided with an instrument outlet
  • the rear end surface of the handle portion of the operation portion is provided with a corresponding instrument inlet
  • the instrument inlet is connected via a device catheter which is inserted inside the handle and inserted into the lumen of the catheter.
  • the angle between the section axis of the instrument inlet and the section axis of the instrument catheter in the handle is less than 15 degrees.
  • the front end head is assembled by a multi-channel module base and a sleeve sleeved on the outer surface of the multi-channel module seat, and the multi-channel module base is formed by a plurality of concave channels on the outer circumferential surface.
  • the sleeve is a hollow cylinder having an inner diameter matching the outer diameter of the irregular body structure, and a plurality of concave shapes when the sleeve is sleeved on the outer circumferential surface of the multi-channel module seat
  • the channel and the sleeve together form a plurality of fully enclosed channels that are open at both ends, and the plurality of fully enclosed channels that are open at both ends include at least the instrument catheter mounting channel and the camera module mounting channel.
  • front end surface of the front end head is further provided with a water outlet
  • the lower end of the handle is provided with a water inlet base
  • the water inlet base communicates with the water outlet through a water inlet conduit which is disposed inside the handle and inserted into the inner cavity of the conduit.
  • the camera module mounting channel is a square channel.
  • the plurality of fully enclosed passages that are open at both ends further comprise an installation channel.
  • the present invention relates to a large-channel straight-through endoscope, in which the optical fiber does not need to be bent during the process of extending from the instrument inlet into the instrument channel, and since the optical fiber itself is brittle and easy to fold, the optical fiber can be effectively prevented from passing through.
  • the present invention adopts a method of assembling an irregular body having a concave channel and a hollow cylindrical sleeve.
  • the partition wall between the fully closed channels that are open at both ends can be made thin enough to increase the inner diameter of the instrument catheter while ensuring that the diameter of the front end surface of the endoscope head of the endoscope catheter is constant. Two or more instruments are simultaneously inserted into the instrument catheter for operation, which shortens the operation time, improves the operation efficiency, and has high practical value.
  • FIG. 2 is a schematic view showing the overall structure of a tip end according to an embodiment of the present invention.
  • FIG. 3 is a cross-sectional view of a front end face of a tip end head disclosed in an embodiment of the present invention
  • FIG. 5 is a schematic structural diagram of a camera module of a front end head according to an embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of a light emitting unit of a front end head according to an embodiment of the present invention.
  • the front end head 12 can be set by the multi-channel module base 12a and the multi-channel module.
  • the sleeve 12b of the outer circumferential surface of the seat is assembled.
  • the multi-channel module seat 12a is a cylindrical irregular body structure formed by having a plurality of concave passages on the circumferential outer surface, and the sleeve 12b is an inner diameter and an irregular body.
  • the outer cylinder of the outer diameter of the structure is adapted.
  • the plurality of concave channels and the sleeve together form a plurality of fully closed channels with open ends.
  • the plurality of fully enclosed passages open at both ends include at least the instrument catheter mounting passage 35 and the camera module mounting passage 14e.
  • the water in the cavity is turbid, which reduces the visibility; or when the gravel or the like obstructs the imaging, the water can be injected into the human body through the water inlet conduit 37, and the water flows from the water outlet.
  • the blood, turbid liquid or gravel is washed away, so that the camera can clearly observe the inner wall of the human body cavity.
  • the catheter can be inserted through the catheter and the ureteroscope The passage between the outer sheaths is subjected to vacuum suction to drain excess water or stones from the body.
  • the camera module 14 includes an imaging unit 14a, a photosensitive chip unit 14b disposed at the bottom of the imaging unit 14a and connected thereto, and a chip printed circuit board assembly disposed at the bottom of the photosensitive chip unit 14b and connected thereto (
  • the English full name is Printed Circuit Board Assembly (PCBA) 14c and the cable set 14d connected to the chip PCBA14c.
  • the camera module mounting channel is in the endoscope, and the light reflected by the target to be detected is imaged by the imaging unit 14a and transmitted to the photosensitive chip unit 14b, and the photosensitive chip unit 14b converts the optical image (ie, the optical signal) into an electrical signal.
  • the camera module mounting channel 14e is a square channel, and the imaging unit 14a and the photosensitive chip unit 14b mounted therein are square.
  • the image quality of the photosensitive chip unit 14b directly affects the observation effect of the external monitor or the display.
  • the photosensitive chip unit 14bc is disposed at a position opposite to the camera behind the camera, and the imaging unit 14a and the photosensitive device The chip unit 14b is connected to the camera module mounting channel, which facilitates the operator to adjust the relative positions of the camera unit 14a and the sensor chip unit 14b for clearer imaging.
  • a plurality of fully enclosed passages open at both ends further include a device mounting passage 16.
  • the device mounting channel 16 can be equipped with a light source, or an auxiliary device such as a pressure sensor.
  • the light source in this embodiment adopts a modular light-emitting unit.
  • the light-emitting unit 16a includes a light-emitting element 16b such as a light-emitting diode or an LED.
  • the printed circuit board is disposed at the bottom of the light-emitting element and connected thereto (English name: Printed Circuit Board) , referred to as PCB) 16c, and cable set 16d connected to PCB 802.
  • the LED lamp is preferably used as the light-emitting element 16b.
  • the LED lamp has the advantages of small volume, long service life, high brightness, low heat, and the like, and further improves the efficiency of diagnosis and treatment and the accuracy of diagnosis and treatment.
  • the present invention is not limited thereto, and any light-emitting member that can emit light can be used as a light source, such as an optical fiber, a light-emitting diode, or the like.
  • the light-emitting unit 8 may be an LED lamp mounted on a flexible circuit board by using surface mount technology (English called Surface Mount Technology, SMT for short).
  • SMT Surface Mount Technology
  • the full name is called Flexible Printed Circuit (FPC), and then the flexible circuit board FPC is mounted on the front end of the endoscope end portion, and the flexible circuit FPC is connected to the power line in the endoscope.
  • the latter installation method is preferably adopted, that is, the LED lamp is mounted on the front end portion of the end portion of the endoscope by the FPC method, and the LED lamp is mounted on the tip end portion of the endoscope by the FPC method.
  • the front end can be mass-produced, which greatly improves the productivity and operational efficiency of the endoscope.
  • the traditional apex head should be considered for the welding of its internal components in assembly, which is prone to line short circuit and solder joint dropout, which affects the intended use and surgical effect of the product, and is likely to cause clinical adverse effects.
  • the invention adopts modularization production of components such as the camera module 14 and the light-emitting unit 16a, and then assembles the assembly, thereby improving assembly efficiency and increasing product stability and safety.
  • a printed circuit board 28 is fixedly disposed in the operation unit 2, and the camera module 14, the light-emitting unit 16a, the printed circuit board 28, and the interface socket 24 are sequentially connected by an electrical connection line. This allows for faster signal transmission, reduced image lag, and the ability to align the power and signal lines, greatly simplifying the line.
  • the operating portion 2 includes a handle 22 and a handle 23 at an angle to the handle 22, and the handle 23 is connected to the handle from about a quarter of the rear end of the handle 22. 22 below, and the handlebar 23 extends along its own axis toward the rear lower side of the handle 22 such that the handlebar 23 forms an acute angle 29 with about a quarter of the handle 22 of the rear portion, the handle 22 and the handlebar as a whole.
  • the handlebar 23 into a pistol shape
  • the handlebar 23 corresponds to the barrel portion of the pistol
  • the handle 22 corresponds to the handle portion of the pistol.
  • the medical staff can conveniently hold the handlebar 23 during the operation, which is convenient for the medical staff to hold the hysteroscope. operating.
  • the handle 23 is further provided with a grip portion 29 formed by a plurality of protrusions, and the grip portion 29 includes at least one upper sliding blocking protrusion and at least one sliding blocking protrusion to increase the friction force of the handle 23 to prevent The function of sliding.
  • the water inlet base 27 is located on the side of the handle 22 and is located on the same side of the handle 22 as the handle 22, such as below the handle 22 in FIG. 1, so that during the draining process, when the operator holds the hand At 23 o'clock, under the action of gravity, the water pipe connected to the water inlet base 27 is naturally downward, and the water pipe does not bend at a large angle, and the water flow is more For smoothness, the water pipes will be neat and tidy, and will not hinder the operation, so that the operator can simultaneously fill the handle 23 while filling the water.
  • the handle 23 of the operating portion 2 is made of all-steel material, and the weight of the entire endoscope is reduced under the premise of ensuring the quality, which is more compact and economical.
  • the outer casing of the operating portion 2 is composed of two parts, an upper casing and a lower casing, and the two parts are provided with mutually cooperating connecting members. When the assembling operation is completed in the operating portion 2, the two parts are assembled and covered. can.
  • the entire tip end portion 12 is made of a metal material.
  • the traditional apex head is made of plastic (such as polymer material). Therefore, when forming the mounting channel of the camera module, the mold is formed during processing. It is necessary to ensure that the internal dimensions of the mounting channel of the wall thickness camera module are greatly affected. Limit, so that the size and pixels of the camera placed therein are greatly limited, and a good camera effect cannot be obtained.
  • the large-channel straight-through endoscope according to the present invention does not need to be bent during the process of extending the optical fiber from the instrument inlet into the instrument catheter, and the optical fiber itself is easy to be brittle and easy to fold, so that the optical fiber itself can be effectively and easily
  • the optical fiber is prevented from being bent when the optical fiber passes through the corner between the instrument inlet and the instrument tube, and the present invention adopts a method of assembling an irregular body having a concave channel and a hollow cylindrical sleeve.
  • the partition wall between the plurality of fully closed channels that are open at both ends can be made thin enough to increase the diameter of the instrument catheter while ensuring that the diameter of the front end surface of the tip end of the endoscope catheter is constant.
  • the inner diameter can be used for two or more instruments to be inserted into the instrument catheter at the same time, which shortens the operation time, improves the operation efficiency, and has high practical value.

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

Abstract

Un endoscope à large canal pour insertion droite (100), comprenant : une partie d'insertion (1). La partie d'insertion comprend un tube d'insertion (11) et une partie pointe distale (12) fixée sur une extrémité avant du tube d'insertion (11); et une partie de manipulation (2), reliée à l'extrémité queue de la partie d'insertion (1) et comprenant une poignée (22) et un manche à main (23) disposé à un angle par rapport à la poignée (22). Un orifice d'entrée de dispositif (25) est disposé à l'extrémité arrière de la poignée (22) de la partie de manipulation (2). Un tube de dispositif (35a) traverse l'intérieur de la poignée (22) et la lumière du tube d'insertion (11). L'axe transversal de l'orifice d'entrée de dispositif (25) forme un angle aigu avec l'axe transversal du tube de dispositif (35a) dans la poignée de moins de 15 degrés. Des fibres optiques dans l'endoscope à large canal (100) peuvent s'étendre à partir du dispositif dans l'orifice (25) à travers le canal de dispositif sans courbure, évitant efficacement un endommagement des fibres. De plus, une augmentation du diamètre interne du tube de dispositif (35a) permet à deux dispositifs ou plus d'être simultanément insérés dans le tube de dispositif (35a) pour effectuer une opération, ce qui permet de réduire les temps de chirurgie, d'améliorer l'efficacité chirurgicale et de conférer une excellente utilité pratique.
PCT/CN2017/106955 2017-10-20 2017-10-20 Endoscope à large canal pour insertion droite Ceased WO2019075707A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2017/106955 WO2019075707A1 (fr) 2017-10-20 2017-10-20 Endoscope à large canal pour insertion droite

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2017/106955 WO2019075707A1 (fr) 2017-10-20 2017-10-20 Endoscope à large canal pour insertion droite

Publications (1)

Publication Number Publication Date
WO2019075707A1 true WO2019075707A1 (fr) 2019-04-25

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5879288A (en) * 1992-11-25 1999-03-09 Olympus Optical Co., Ltd. Endoscope system including both reusable-type and cover-type endoscopes
CN201782796U (zh) * 2010-07-27 2011-04-06 张茨 一种治疗上尿路结石的腔内碎石装置
CN102355846A (zh) * 2009-03-19 2012-02-15 奥林巴斯株式会社 处理用内窥镜
CN202505312U (zh) * 2012-04-09 2012-10-31 广州医学院第一附属医院 多用途内窥镜
CN104138295A (zh) * 2014-07-09 2014-11-12 杨涛 一种多用途激光内窥镜
CN106028992A (zh) * 2014-03-04 2016-10-12 奥林巴斯株式会社 内窥镜用处理器具

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5879288A (en) * 1992-11-25 1999-03-09 Olympus Optical Co., Ltd. Endoscope system including both reusable-type and cover-type endoscopes
CN102355846A (zh) * 2009-03-19 2012-02-15 奥林巴斯株式会社 处理用内窥镜
CN201782796U (zh) * 2010-07-27 2011-04-06 张茨 一种治疗上尿路结石的腔内碎石装置
CN202505312U (zh) * 2012-04-09 2012-10-31 广州医学院第一附属医院 多用途内窥镜
CN106028992A (zh) * 2014-03-04 2016-10-12 奥林巴斯株式会社 内窥镜用处理器具
CN104138295A (zh) * 2014-07-09 2014-11-12 杨涛 一种多用途激光内窥镜

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