WO2023103934A1 - 蛇骨插入管连接结构及内窥镜 - Google Patents

蛇骨插入管连接结构及内窥镜 Download PDF

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Publication number
WO2023103934A1
WO2023103934A1 PCT/CN2022/136470 CN2022136470W WO2023103934A1 WO 2023103934 A1 WO2023103934 A1 WO 2023103934A1 CN 2022136470 W CN2022136470 W CN 2022136470W WO 2023103934 A1 WO2023103934 A1 WO 2023103934A1
Authority
WO
WIPO (PCT)
Prior art keywords
annular
clamping
insertion tube
snake bone
connection part
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/CN2022/136470
Other languages
English (en)
French (fr)
Chinese (zh)
Inventor
易锋
黎静
谭晓锋
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.)
Guangzhou Red Pine Medical Instrument Co Ltd
Original Assignee
Guangzhou Red Pine Medical Instrument Co Ltd
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 Guangzhou Red Pine Medical Instrument Co Ltd filed Critical Guangzhou Red Pine Medical Instrument Co Ltd
Priority to US18/689,300 priority Critical patent/US20240382073A1/en
Priority to EP22903356.8A priority patent/EP4382024A4/en
Priority to JP2024515883A priority patent/JP7842857B2/ja
Publication of WO2023103934A1 publication Critical patent/WO2023103934A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • A61B1/00112—Connection or coupling means
    • A61B1/00121—Connectors, fasteners and adapters, e.g. on the endoscope handle
    • A61B1/00128—Connectors, fasteners and adapters, e.g. on the endoscope handle mechanical, e.g. for tubes or pipes
    • 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
    • A61B1/00064—Constructional details of the endoscope body
    • A61B1/0011—Manufacturing of endoscope parts
    • 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
    • A61B1/00112—Connection or coupling means
    • A61B1/00119—Tubes or pipes in or with an endoscope
    • 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
    • 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
    • A61B1/0055—Constructional details of insertion parts, e.g. vertebral elements

Definitions

  • the utility model relates to the technical field of medical instruments, in particular to a snake bone insertion tube connection structure and an endoscope.
  • an endoscope is used to visually inspect the hard-to-reach positions such as internal organs of the human body to observe the pathological changes.
  • an endoscope includes an elongated insertion tube with a handle at the end of the insertion tube near the operator and a visual inspection device such as a built-in camera at the distal end of the elongated insertion tube.
  • the endoscope includes a snake bone that can be bent, and the orientation of the tip of the end of the snake bone is adjusted through the bending of the snake bone, thereby changing the viewing angle.
  • the insertion tube is a braided tube, and the insertion tube and the plastic snake bone are connected by bonding.
  • the bonding method is likely to cause the snake bone to fall off the insertion tube, and the adhesion effect is poor. Medical malpractice happens.
  • a snake bone insertion tube connection structure comprising: a snake bone, the snake bone is provided with a first clamping part, and the first clamping part is located on the circumferential direction of the snake bone; a connecting pipe, the connecting pipe and The snake bone is sleeved, and the connecting pipe is provided with a second clamping part, the second clamping part is located in the circumferential direction of the connecting pipe, and the first clamping part is connected to the second clamping part snap fit, so that the serpentine is connected to the connecting tube; inserting the tube, the inserting tube is glued to the connecting tube.
  • connection structure of the above-mentioned snake bone insertion tube during the installation process, the connecting tube is sleeved on the snake bone, and the first clamping part and the second clamping part are snap-fitted, and the insertion tube and the connecting tube are bonded. Because the first clamping part is arranged in the circumferential direction of the snake bone, and the second clamping part is arranged in the circumferential direction of the connecting pipe, so that the connecting pipe is connected with the snake bone through a buckle at the same time, which is beneficial to reduce the first clamping The probability of breaking the first part and the second clamping part by external force ensures the overall structural stability of the connecting structure of the snake bone insertion tube.
  • the indirect connection between the snake bone and the insertion tube is beneficial to avoid the risk of the snake bone falling off due to the low stability of direct bonding, and thus helps to ensure the connection between the snake bone and the insertion tube Stability, reducing the chance of medical accidents caused by the snake bone falling off the insertion tube when the endoscope is in use, thereby improving the overall use quality of the endoscope.
  • first engaging portions there are at least two first engaging portions and at least two second engaging portions, at least two first engaging portions are arranged at intervals along the circumferential direction of the serpentine, at least two The second clamping parts are arranged at intervals along the circumference of the connecting pipe, and at least two of the first clamping parts are provided in a one-to-one correspondence with at least two of the second clamping parts.
  • the first clamping part is a clamping post
  • the second clamping part is a clamping hole
  • the cross-sectional profile of the clamping post is adapted to the shape of the opening of the clamping hole.
  • the first clamping part is a clamping hole
  • the second clamping part is a clamping post
  • the opening shape of the clamping hole is adapted to the cross-sectional profile of the clamping post .
  • the clamping column is provided with an introduction slope, and the introduction slope is used to guide the clamping column to enter the clamping hole.
  • At least two of the fastening posts at least include a first fastening post and a second fastening post
  • at least two of the fastening holes include at least a first fastening hole and a second fastening hole.
  • Connecting hole, the first fastening post is snap fit with the first fastening hole
  • the second fastening post is fastened with the second fastening hole; the cross section of the first fastening post
  • the profile is different from the cross-sectional profile of the second clamping post, and the opening shape of the first clamping hole is different from that of the second clamping hole.
  • the cross-sectional profile of the first fastening post is a waist shape extending along the axial direction of the snake bone, and the opening shape of the first fastening hole is along the axial direction of the connecting pipe.
  • Extended waist shape; the cross-sectional profile of the second fastening post is circular, and the opening shape of the second fastening hole is circular.
  • the serpentine is provided with a first annular connecting portion, the first annular connecting portion is connected with the serpentine and extends along the axial direction of the serpentine, and the first engaging portion Located in the circumferential direction of the first annular connecting portion, the connecting pipe is provided with a second annular connecting portion, the second annular connecting portion is connected with the connecting pipe and extends along the axial direction of the connecting pipe, the The second locking part is located in the circumferential direction of the second annular connection part, the outer diameter of the second annular connection part is smaller than the inner diameter of the first annular connection part, and the first annular connection part is sleeved on the Outside the second annular connecting portion, the connecting pipe is engaged with the first annular connecting portion, and the outer wall of the connecting pipe and the outer wall of the first annular connecting portion make a smooth transition.
  • a sealant is coated between the outer wall of the second annular connection part and the inner wall of the first annular connection part.
  • the serpentine is provided with a first annular connecting portion, the first annular connecting portion is connected with the serpentine and extends along the axial direction of the serpentine, and the first engaging portion Located in the circumferential direction of the first annular connecting portion, the connecting pipe is provided with a second annular connecting portion, the second annular connecting portion is connected with the connecting pipe and extends along the axial direction of the connecting pipe, the The second locking part is located in the circumferential direction of the second annular connection part, the outer diameter of the first annular connection part is smaller than the inner diameter of the second annular connection part, and the second annular connection part is sleeved on the Outside the first annular connection part, the snake bone is engaged with the second ring connection part, and the outer wall of the snake bone and the outer wall of the second ring connection part make a smooth transition.
  • a sealant is coated between the outer wall of the first annular connection part and the inner wall of the second annular connection part.
  • the connecting pipe is further provided with a third annular connecting portion, the third annular connecting portion is connected with the connecting pipe and extends along the axial direction of the connecting pipe, and the second annular connecting portion and the third annular connecting portion are respectively located at opposite ends of the connecting tube;
  • the insertion tube is provided with a fourth annular connecting portion, and the fourth annular connecting portion is connected with the insertion tube
  • the axial extension of the pipe, the outer diameter of the fourth annular connection part is smaller than the inner diameter of the third annular connection part, the third annular connection part is sleeved outside the fourth annular connection part, the insertion tube Engaged with the third annular connection part, and the outer wall of the insertion tube and the outer wall of the third annular connection part transition smoothly, the outer wall of the fourth annular connection part and the inner wall of the third annular connection part Inter-coated with structural glue.
  • An endoscope comprising any one of the snake bone insertion tube connection structures described above.
  • the connecting tube is sleeved on the snake bone, and the first clamping part and the second clamping part are snap-fitted, and the insertion tube and the connecting tube are bonded. Because the first clamping part is arranged in the circumferential direction of the snake bone, and the second clamping part is arranged in the circumferential direction of the connecting pipe, so that the connecting pipe is connected with the snake bone through a buckle at the same time, which is beneficial to reduce the first clamping The probability of breaking the first part and the second clamping part by external force ensures the overall structural stability of the connecting structure of the snake bone insertion tube.
  • the indirect connection between the snake bone and the insertion tube is beneficial to avoid the risk of the snake bone falling off due to the low stability of direct bonding, and thus helps to ensure the connection between the snake bone and the insertion tube Stability, reducing the chance of medical accidents caused by the snake bone falling off the insertion tube when the endoscope is in use, thereby improving the overall use quality of the endoscope.
  • Fig. 1 is the schematic diagram after installation of the connecting structure of snake bone insertion tube described in an embodiment
  • Fig. 2 is an exploded view of the connection structure of the serpentine insertion tube described in one embodiment.
  • snake bone insertion tube connection structure 110.
  • Snake bone 111.
  • First clamping part 112.
  • first and second are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features.
  • the features defined as “first” and “second” may explicitly or implicitly include at least one of these features.
  • “plurality” means at least two, such as two, three, etc., unless otherwise specifically defined.
  • connection In this utility model, unless otherwise clearly specified and limited, the terms “installation”, “connection”, “connection”, “fixation” and other terms should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrated; may be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediary, and may be an internal communication between two elements or an interactive relationship between two elements, unless otherwise stated Clearly defined. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model according to specific situations.
  • the first feature may be in direct contact with the first feature or the first feature and the second feature through an intermediary indirect contact.
  • “above”, “above” and “above” the first feature on the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.
  • “Below”, “beneath” and “beneath” the first feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is less horizontally than the second feature.
  • a serpentine insertion tube connection structure 100 includes: a snake bone 110 , a connecting tube 120 and an insertion tube 130 .
  • the snake bone 110 is provided with a first locking portion 111 , and the first locking portion 111 is located on the circumferential direction of the snake bone 110 .
  • the connecting pipe 120 is socketed with the snake bone 110, and the connecting pipe 120 is provided with a second engaging portion 121, the second engaging portion 121 is located in the circumferential direction of the connecting pipe 120, the first engaging portion 111 and the second engaging portion 121 snap fit, so that the snake bone 110 is connected with the connecting tube 120 .
  • the insertion tube 130 is bonded to the connection tube 120 .
  • the snake bone insertion tube connecting structure 100 mentioned above during the installation process, the connecting tube 120 is sleeved on the snake bone 110, and the first clamping part 111 and the second clamping part 121 are snap-fitted, and the insertion tube 130 Bond with the connecting pipe 120. Since the first clamping portion 111 is arranged in the circumferential direction of the snake bone 110, and the second clamping portion 121 is disposed in the circumferential direction of the connecting pipe 120, so that the connecting pipe 120 is socketed with the snake bone 110 and then connected by a buckle. It is beneficial to reduce the probability of breaking the first clamping portion 111 and the second clamping portion 121 under external force, and ensure the overall structural stability of the snake bone insertion tube connection structure 100 .
  • the indirect connection between the snake bone 110 and the insertion tube 130 through the bonding of the connecting tube 120 and the insertion tube 130 is beneficial to avoid the risk of the snake bone 110 falling off due to the low stability of the direct bonding, which in turn helps to ensure that the snake bone
  • the stability of the connection between 110 and the insertion tube 130 reduces the probability of medical accidents caused by the snake bone 110 falling off from the insertion tube 130 when the endoscope is in use, thereby improving the overall use quality of the endoscope.
  • first engaging portions 111 and second engaging portions 121 there are at least two first engaging portions 111 and second engaging portions 121 , at least two first engaging portions 111 are arranged at intervals along the circumferential direction of snake bone 110 , at least The two second locking portions 121 are arranged at intervals along the circumference of the connecting pipe 120 .
  • first engaging portions 111 there are four first engaging portions 111 , and the four first engaging portions 111 are arranged at intervals along the circumferential direction of the serpentine 110 .
  • second engaging portions 121 there are four second engaging portions 121 , and the four second engaging portions 121 are arranged at intervals along the circumferential direction of the connecting pipe 120 .
  • it is beneficial to disperse the stress at the joint improve the circumferential connection stability of the snake 110 and the connecting pipe 120, avoid loosening and falling of the snake 110, and prevent medical accidents during endoscopic examination.
  • This embodiment only provides a selection of the number of the first engaging portion 111 and the second engaging portion 121 , but it is not limited thereto.
  • At least two first engaging portions 111 and at least two second engaging portions 121 are provided in one-to-one correspondence. In this way, it is beneficial to further improve the circumferential connection stability of the serpentine 110 and the connecting pipe 120 .
  • the first locking portion 111 is a locking post 122
  • the second locking portion 121 is a locking hole 112 .
  • the cross-sectional profile of the fastening post 122 is adapted to the opening shape of the fastening hole 112 .
  • the connection between the clamping column 122 and the clamping hole 112 is beneficial to ensure the stability of the clamping connection.
  • the shape-fitted clamping column 122 and the clamping hole 112 are beneficial to avoid loosening, thereby improving endoscopic overall quality of the mirror.
  • the first engaging portion 111 is an engaging hole 112
  • the second engaging portion 121 is an engaging post 122
  • the opening shape of the engaging hole 112 is Adapt to the cross-sectional profile of the fastening post 122 .
  • the connection between the clamping column 122 and the clamping hole 112 is beneficial to ensure the stability of the clamping connection.
  • the shape-fitted clamping column 122 and the clamping hole 112 are beneficial to avoid loosening, thereby improving endoscopic overall quality of the mirror.
  • the locking post 122 is provided with an introduction slope.
  • the introduction slope is used to guide the fastening post 122 to enter the fastening hole 112 .
  • the fastening post 122 can be easily entered into the fastening hole 112 , and the convenience of the fastening connection between the connecting pipe 120 and the snake bone 110 can be improved.
  • At least two fastening posts 122 include at least a first fastening post 123 and a second fastening post 124
  • at least two fastening holes 112 include at least a first fastening post 124 .
  • the locking hole 113 and the second locking hole 114 The first fastening post 123 is buckled with the first fastening hole 113
  • the second fastening post 124 is buckled with the second fastening hole 114
  • the cross-sectional profile of the first fastening post 123 is different from that of the second fastening post 124
  • the opening shape of the first fastening hole 113 is different from that of the second fastening hole 114 .
  • the different shapes of the first clamping column 123 and the second clamping column 124 are used as a distinction, which is conducive to the directional connection of the snake bone 110 on the connecting pipe 120, avoiding the misalignment of the snake bone 110 and the connecting pipe 120, and improving the internal The overall quality of the looking glass.
  • first fastening post 123 and three second fastening posts 124 there is one first fastening post 123 and three second fastening posts 124 , and one first fastening post 123 and three second fastening posts 124 are arranged at intervals in the circumferential direction of the connecting pipe 120 .
  • first locking hole 113 and three second locking holes 114 there is one first locking hole 113 and three second locking holes 114 , and one first locking hole 113 and three second locking holes 114 are arranged at intervals in the circumferential direction of the snake bone 110 . In this way, it is beneficial to prevent the snake bone 110 from being reversed during installation, thereby improving the installation convenience and installation efficiency of the snake bone 110 .
  • the cross-sectional profile of the first fastening post 123 is a waist shape extending along the axial direction of the serpentine 110 , and the opening shape of the first fastening hole 113 is along the connecting pipe 120 . Axially extending girdle.
  • the cross-sectional profile of the second fastening post 124 is circular, and the opening shape of the second fastening hole 114 is circular. This embodiment only provides a selection of shapes of the locking post 122 and the locking hole 112 , but it is not limited thereto.
  • the axial direction of the snake bone 110 is the direction indicated by any arrow on the straight line S1 in FIG. 2 .
  • the connecting pipe 120 is coaxially connected with the serpentine 110 .
  • the insertion tube 130 is coaxially connected to the connection tube 120 .
  • the snake bone 110 is a POM (polymethanol) piece
  • the connecting tube 120 is a PC (polycarbonate) tube
  • the insertion tube 130 is a braided tube.
  • the cost of the production material is low, and it is non-toxic and harmless.
  • This embodiment only provides a selection of materials for the snake bone 110 , the connecting tube 120 and the insertion tube 130 , but it is not limited thereto.
  • the serpentine 110 is provided with a first annular connection portion 115
  • the first annular connection portion 115 is connected with the serpentine 110 and extends along the axial direction of the serpentine 110
  • the first engaging portion 111 Located in the circumferential direction of the first annular connecting portion 115
  • the connecting pipe 120 is provided with a second annular connecting portion 125 .
  • the second annular connecting portion 125 is connected to the connecting pipe 120 and extends along the axial direction of the connecting pipe 120 .
  • the second clamping portion 121 Located in the circumferential direction of the second annular connecting portion 125, the outer diameter of the second annular connecting portion 125 is smaller than the inner diameter of the first annular connecting portion 115, the first annular connecting portion 115 is sleeved outside the second annular connecting portion 125, and the connecting pipe 120 It is engaged with the first annular connecting portion 115 , and the outer wall of the connecting pipe 120 and the outer wall of the first annular connecting portion 115 make a smooth transition. In this way, after the snake bone 110 is connected to the connecting tube 120, the outer walls of the two are smoothly transitioned, which is beneficial to improving the smoothness of the structure, avoiding damage to organs and tissues when entering human organs, and improving the overall use quality of the endoscope.
  • a sealant is provided between the outer wall of the second annular connecting portion 125 and the inner wall of the first annular connecting portion 115 .
  • the first annular connecting portion 115 and the second annular connecting portion 125 are connected by buckling and bonding, which is conducive to further improving the connection stability between the snake bone 110 and the connecting pipe 120, thereby preventing the snake bone 110 from being connected.
  • the tube 120 falls off while ensuring the sealing, thereby improving the overall quality of the endoscope.
  • the serpentine 110 is provided with a first annular connecting portion 115, the first annular connecting portion 115 is connected with the serpentine 110 and extends along the axial direction of the serpentine 110, and the first engaging portion 111 is located in the first annular In the circumferential direction of the connecting part 115, the connecting pipe 120 is provided with a second annular connecting part 125, the second annular connecting part 125 is connected with the connecting pipe 120 and extends along the axial direction of the connecting pipe 120, and the second clamping part 121 is located in the second annular In the circumferential direction of the connecting portion 125, the outer diameter of the first annular connecting portion 115 is smaller than the inner diameter of the second annular connecting portion 125, and the second annular connecting portion 125 is sleeved outside the first annular connecting portion 115, and the serpentine 110 and the second annular The connecting portion 125 is engaged, and the outer wall of the serpentine 110 and the outer wall of the second annular connecting portion 125 make a smooth transition.
  • first annular connecting portion 115 and the second annular connecting portion 125 are connected by snap-fit connection and adhesive combination, which is beneficial to further improve the connection stability between the snake bone 110 and the connecting pipe 120, thereby preventing the snake bone 110 from falling from the connecting pipe. 120 off, while ensuring the tightness, thereby improving the overall quality of the endoscope.
  • the connecting pipe 120 is further provided with a third annular connecting portion 126, the third annular connecting portion 126 is connected with the connecting pipe 120 and extends along the axial direction of the connecting pipe 120, the second annular connecting portion 125 and the third annular connecting portion 126 are respectively located at opposite ends of the connecting pipe 120, the insertion pipe 130 is provided with a fourth annular connecting portion 131, the fourth annular connecting portion 131 is connected with the insertion pipe 130 and extends along the axial direction of the insertion pipe 130 , the outer diameter of the fourth annular connecting portion 131 is smaller than the inner diameter of the third annular connecting portion 126, the third annular connecting portion 126 is sleeved outside the fourth annular connecting portion 131, the insertion tube 130 is engaged with the third annular connecting portion 126, and The outer wall of the insertion tube 130 and the outer wall of the third annular connecting portion 126 are smoothly transitioned; the outer wall of the fourth annular connecting portion 131 and the inner wall of the
  • an endoscope (not shown in the figure) includes the snake bone insertion tube connection structure 100 in the above embodiments.
  • the connecting tube 120 is sleeved on the snake bone 110, and the first clamping part 111 and the second clamping part 121 are snap-fitted, and the insertion tube 130 is connected to the connecting tube 120. bonding. Because the first clamping part 111 is arranged in the circumferential direction of the snake bone 110, and the second clamping part 121 is arranged in the circumferential direction of the connecting pipe 120, so that the connecting pipe 120 is connected to the snake bone 110 through a buckle at the same time. It is beneficial to reduce the probability of breaking the first clamping portion 111 and the second clamping portion 121 under external force, and ensure the overall structural stability of the snake bone insertion tube connection structure 100 .
  • the indirect connection between the snake bone 110 and the insertion tube 130 through the bonding of the connecting tube 120 and the insertion tube 130 is beneficial to avoid the risk that the snake bone 110 will fall off due to the low stability of the direct bonding, which in turn is beneficial to ensure that the snake bone
  • the stability of the connection between 110 and the insertion tube 130 reduces the probability of medical accidents caused by the snake bone 110 falling off from the insertion tube 130 when the endoscope is in use, thereby improving the overall use quality of the endoscope.

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  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Biophysics (AREA)
  • Medical Informatics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Optics & Photonics (AREA)
  • Pathology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Veterinary Medicine (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Physics & Mathematics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
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  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Endoscopes (AREA)
PCT/CN2022/136470 2021-12-07 2022-12-05 蛇骨插入管连接结构及内窥镜 Ceased WO2023103934A1 (zh)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US18/689,300 US20240382073A1 (en) 2021-12-07 2022-12-05 Bending section and insertion tube connecting structure, and endoscope
EP22903356.8A EP4382024A4 (en) 2021-12-07 2022-12-05 BEND SECTION AND INTRODUCTION TUBE CONNECTION STRUCTURE AND ENDOSCOPE
JP2024515883A JP7842857B2 (ja) 2021-12-07 2022-12-05 湾曲部と挿入管の接続構造及び内視鏡

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CN202123058884.0U CN217040075U (zh) 2021-12-07 2021-12-07 蛇骨插入管连接结构及内窥镜
CN202123058884.0 2021-12-07

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US (1) US20240382073A1 (https=)
EP (1) EP4382024A4 (https=)
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CN217040075U (zh) * 2021-12-07 2022-07-26 广州瑞派医疗器械有限责任公司 蛇骨插入管连接结构及内窥镜
CN120167867B (zh) * 2025-05-22 2026-01-06 湖南省华芯医疗器械有限公司 连接件、插入部及内窥镜

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