WO2023103932A1 - 先端头蛇骨连接结构及内窥镜 - Google Patents

先端头蛇骨连接结构及内窥镜 Download PDF

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Publication number
WO2023103932A1
WO2023103932A1 PCT/CN2022/136465 CN2022136465W WO2023103932A1 WO 2023103932 A1 WO2023103932 A1 WO 2023103932A1 CN 2022136465 W CN2022136465 W CN 2022136465W WO 2023103932 A1 WO2023103932 A1 WO 2023103932A1
Authority
WO
WIPO (PCT)
Prior art keywords
clamping
tip
annular connecting
snake bone
connecting portion
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/CN2022/136465
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 US18/575,689 priority Critical patent/US20240306890A1/en
Priority to EP22903354.3A priority patent/EP4344602A4/en
Priority to JP2024515885A priority patent/JP7842858B2/ja
Publication of WO2023103932A1 publication Critical patent/WO2023103932A1/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
    • A61B1/00064—Constructional details of the endoscope body
    • A61B1/00071—Insertion part of the endoscope body
    • A61B1/0008—Insertion part of the endoscope body characterised by distal tip features
    • A61B1/00087—Tools
    • 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
    • A61B1/00071—Insertion part of the endoscope body
    • A61B1/0008—Insertion part of the endoscope body characterised by distal tip features
    • 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
    • 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

Definitions

  • the utility model relates to the technical field of medical instruments, in particular to an apex snake bone 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 traditional way of connecting the tip of the endoscope to the snake bone is mainly the way of bonding.
  • the way of bonding is likely to cause the tip head to fall off from the snake bone, and the reliability is poor, leading to medical accidents.
  • a snake-bone connection structure at the tip head comprising: a tip head, the tip head is provided with a first clamping part, and the first clamping part is located in the circumferential direction of the tip head; a snake bone, the snake bone and the The tip end is sleeved, and the snake bone is provided with a second clamping part, the second clamping part is located in the circumferential direction of the snake bone, the first clamping part and the second clamping part snap fit so that the tip head is connected to the snake bone.
  • connection structure of the snake bone of the tip head during the installation process, the first clamping part on the tip head is snap-fitted with the second clamping part on the snake bone, so that the tip head is connected to the snake bone.
  • the buckle connection is easy to install, and is suitable for the connection between the snake bone made of plastic material and the tip end, which is beneficial to improving the operation convenience of the connection between the snake bone and the tip end.
  • the first clamping part is arranged in the circumferential direction of the tip head, and the second clamping part is set in the circumferential direction of the snake bone.
  • first locking parts and second locking parts there are at least two first locking parts and second locking parts, at least two first locking parts are arranged at intervals along the circumference of the tip head, and at least two The second engaging portions are arranged at intervals along the circumferential direction of the snake bone, and at least two of the first engaging portions are arranged in a one-to-one correspondence with at least two of the second engaging portions.
  • 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 clamping column is snap fit with the first clamping hole
  • the second clamping post is snapped with the second clamping hole
  • the cross section of the first clamping post The profile is different from the cross-sectional profile of the second clamping post
  • 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 tip head, and the opening shape of the first fastening hole is along the axial direction of the snake bone.
  • 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 tip end is provided with a first annular connection portion
  • the first annular connection portion is connected with the tip end and extends along the axial direction of the tip end
  • the serpentine is provided with a first annular connection portion.
  • Two annular connecting parts the second annular connecting part is connected with the snake bone and extends along the axial direction of the snake bone
  • the first clamping part is located in the circumferential direction of the first annular connecting part
  • 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
  • the second annular connection part is sleeved on the Outside the first annular connection portion
  • the tip is engaged with the second annular connection portion, and the outer wall of the tip is smoothly transitioned to the outer wall of the second annular connection portion.
  • 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 tip end is provided with a first annular connection portion
  • the first annular connection portion is connected with the tip end and extends along the axial direction of the tip end
  • the serpentine is provided with a first annular connection portion.
  • Two annular connecting parts the second annular connecting part is connected with the snake bone and extends along the axial direction of the snake bone
  • the first clamping part is located in the circumferential direction of the first annular connecting part
  • 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
  • the first annular connection part is sleeved on the Outside the second annular connection part
  • the snake bone is engaged with the first ring connection part
  • the outer wall of the snake bone and the outer wall of the first ring connection part 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.
  • An endoscope comprising any one of the apex head snake-bone connection structures described above.
  • the first clamping part on the tip end is snap-fitted with the second clamping part on the snake bone, so that the tip end is connected to the snake bone.
  • the buckle connection is easy to install, and is suitable for the connection between the snake bone made of plastic material and the tip end, which is beneficial to improving the operation convenience of the connection between the snake bone and the tip end.
  • the first clamping part is arranged in the circumferential direction of the tip head, and the second clamping part is set in the circumferential direction of the snake bone.
  • Fig. 1 is a structural schematic diagram of the snake bone connection structure of the tip head described in an embodiment
  • Fig. 2 is a schematic diagram of the combined structure of the apex snake bone connection structure described in an embodiment
  • FIG. 3 is an enlarged schematic diagram of the structure at circle A in FIG. 2 .
  • 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. For those of ordinary skill in the art, the specific meanings of the above-mentioned terms in the present utility model can be understood 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.
  • an apex head snake bone connection structure 100 includes: an apex head 110 and a snake bone 120 .
  • the tip head 110 is provided with a first locking portion 111 , and the first locking portion 111 is located in the circumferential direction of the tip head 110 .
  • the snake bone 120 is socketed with the tip end 110, and the snake bone 120 is provided with a second engaging portion 121, the second engaging portion 121 is located in the circumferential direction of the snake bone 120, the first engaging portion 111 and the second engaging portion 121 Snap fit, so that the tip head 110 is connected to the snake bone 120 .
  • the first engaging portion 111 on the tip end 110 is snap-fitted with the second engaging portion 121 on the snake bone 120, so that the tip end head 110 and the snake bone 120 connections.
  • the buckle connection is easy to install and is suitable for the connection between the snake bone 120 made of plastic material and the tip head 110 , which is beneficial to improve the operation convenience of the connection between the snake bone 120 and the tip head 110 .
  • the first clamping part 111 is arranged in the circumferential direction of the tip head 110
  • the second clamping part 121 is arranged in the circumferential direction of the snake bone 120. After the two are connected, the connection stability between the tip head 110 and the snake bone 120 can be improved. Furthermore, it is beneficial to prevent the tip 110 from falling off from the snake bone 120, improve the reliability of the endoscope, and reduce the probability of medical accidents.
  • FIG. 1 and FIG. 2 there are at least two first engaging portions 111 and second engaging portions 121 , and at least two first engaging portions 111 are arranged at intervals along the circumference of the tip head 110 , at least The two second engaging portions 121 are arranged at intervals along the circumferential direction of the serpentine 120 .
  • first engaging portions 111 there are four first engaging portions 111 , the four first engaging portions 111 are arranged at intervals along the circumferential direction of the tip head 110 , there are four second engaging portions 121 , and the four Two second engaging portions 121 are arranged at intervals along the circumferential direction of the serpentine 120 .
  • 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 between the snake bone 120 and the tip head 110 .
  • the first clamping portion 111 is a clamping post 112
  • the second clamping portion 121 is a clamping hole 122
  • the cross-sectional profile of the clamping post 112 is consistent with the clamping hole 122 Adapt to the shape of the opening.
  • the connection between the clamping column 112 and the clamping hole 122 is beneficial to ensure the stability of the clamping connection.
  • the shape-fitted clamping column 112 and the clamping hole 122 are beneficial to avoid loosening, thereby improving endoscopic overall quality of the mirror.
  • the first engaging portion 111 is an engaging hole 122
  • the second engaging portion 121 is an engaging post 112
  • the opening shape of the engaging hole 122 is the same as
  • the cross-sectional profile of the clamping post 112 is adapted.
  • the connection between the clamping column 112 and the clamping hole 122 is beneficial to ensure the stability of the clamping connection.
  • the shape-fitted clamping column 112 and the clamping hole 122 are beneficial to avoid loosening, thereby improving endoscopic overall quality of the mirror.
  • the clamping column 112 is provided with an introduction slope 113 , and the introduction slope 113 is used to guide the clamping column 112 to enter the clamping hole 122 .
  • the fastening post 112 can be easily entered into the fastening hole 122 , and the convenience of the fastening connection between the tip head 110 and the snake bone 120 can be improved.
  • At least two fastening posts 112 include at least a first fastening post 114 and a second fastening post 115
  • at least two fastening holes 122 include at least a first fastening post 115
  • the locking hole 123 and the second locking hole 124 The first clamping column 114 is snap-fitted with the first clamping hole 123
  • the second clamping post 115 is snap-fitted with the second clamping hole 124
  • the cross-sectional profile of the first fastening post 114 is different from that of the second fastening post 115
  • the opening shape of the first fastening hole 123 is different from that of the second fastening hole 124 .
  • first clamping post 114 and the second clamping post 115 are used as a distinction, which is conducive to the directional connection of the tip head 110 to the snake bone 120, avoiding the dislocation connection between the tip head 110 and the snake bone 120, and improving the internal The overall quality of the looking glass.
  • first fastening posts 114 and two second fastening posts 115 there are two first fastening posts 114 and two second fastening posts 115 , the two first fastening posts 114 are adjacently arranged, and the two second fastening posts 115 are adjacently arranged.
  • first snapping holes 123 and two second snapping holes 124 there are two first snapping holes 123 and two second snapping holes 124 , the two first snapping holes 123 are adjacently arranged, and the two second snapping holes 124 are adjacently arranged. In this way, it is beneficial to avoid the front end head 110 being reversed during installation, thereby improving the installation convenience and installation efficiency of the front end head 110 .
  • the cross-sectional profile of the first clamping column 114 is a waist shape extending along the axial direction of the tip head 110 , and the opening shape of the first clamping hole 123 is along the The waist shape of the snake bone 120 extends axially.
  • the cross-sectional profile of the second fastening post 115 is circular, and the opening shape of the second fastening hole 124 is circular. This embodiment only provides a selection of shapes of the locking post 112 and the locking hole 122 , but it is not limited thereto.
  • the axial direction of the tip tip 110 is the direction indicated by any arrow on the straight line S1 in FIG. 3 .
  • the snake bone 120 is coaxially connected with the tip head 110 .
  • the tip 110 is a PC (polycarbonate) piece
  • the snake bone 120 is a POM (polymethanol) piece.
  • the cost of the production material is low, and it is non-toxic and harmless.
  • This embodiment only provides a choice of materials for the tip head 110 and snake bone 120 , but it is not limited thereto.
  • the tip head 110 is provided with a first annular connection portion 116 , and the first ring connection portion 116 is connected to the tip head 110 and extends along the axial direction of the tip head 110 .
  • the serpentine 120 is provided with a second annular connecting portion 125 , and the second annular connecting portion 125 is connected with the serpentine 120 and extends along the axial direction of the serpentine 120 .
  • the first engaging portion 111 is located in the circumferential direction of the first annular connecting portion 116
  • the second engaging portion 121 is located in the circumferential direction of the second annular connecting portion 125
  • the outer diameter of the first annular connecting portion 116 is smaller than that of the second annular connecting portion 125 inner diameter.
  • the second annular connecting portion 125 is sheathed outside the first annular connecting portion 116 , the tip 110 engages with the second annular connecting portion 125 , and the outer wall of the tip 110 and the outer wall of the second annular connecting portion 125 transition smoothly.
  • first annular connecting portion 116 and the second annular connecting portion 125 are connected by buckling and bonding, which is conducive to further improving the connection stability between the tip head 110 and the snake bone 120, thereby preventing the tip end head 110 from dislodging from the snake bone. 120 off, while ensuring the tightness, thereby improving the overall quality of the endoscope.
  • the tip head 110 is provided with a first annular connection portion 116, the first ring connection portion 116 is connected with the tip head 110 and extends along the axial direction of the tip head 110, and the serpentine 120 is provided with a second Two annular connecting parts 125, the second annular connecting part 125 is connected with the snake bone 120 and extends along the axial direction of the snake bone 120, the first engaging part 111 is located on the circumferential direction of the first ring connecting part 116, the second The engaging portion 121 is 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 116 , and the first annular connecting portion 116 is sleeved outside the second annular connecting portion 125 , the snake bone 120 is engaged with the first annular connecting portion 116 , and the outer wall of the snake bone 120 and the outer wall of the first annular connecting portion 116 make a smooth transition.
  • first annular connecting portion 116 and the second annular connecting portion 125 are connected by buckling and bonding, which is conducive to further improving the connection stability between the tip head 110 and the snake bone 120, thereby preventing the tip end head 110 from dislodging from the snake bone. 120 off, while ensuring the tightness, thereby improving the overall quality of the endoscope.
  • an endoscope (not shown in the figure) includes the serpentine connection structure 100 of the tip head in the above embodiments.
  • the first engaging portion 111 on the tip head 110 is snap-fitted with the second engaging portion 121 on the snake bone 120 , so that the tip end head 110 is connected to the snake bone 120 .
  • the buckle connection is easy to install and is suitable for the connection between the snake bone 120 made of plastic material and the tip head 110 , which is beneficial to improve the operation convenience of the connection between the snake bone 120 and the tip head 110 .
  • the first clamping part 111 is arranged in the circumferential direction of the tip head 110, and the second clamping part 121 is arranged in the circumferential direction of the snake bone 120. After the two are connected, the connection stability between the tip head 110 and the snake bone 120 can be improved. Furthermore, it is beneficial to prevent the tip 110 from falling off from the snake bone 120, improve the reliability of the endoscope, and reduce the probability of medical accidents.

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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)
  • Endoscopes (AREA)
  • Prostheses (AREA)
PCT/CN2022/136465 2021-12-07 2022-12-05 先端头蛇骨连接结构及内窥镜 Ceased WO2023103932A1 (zh)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US18/575,689 US20240306890A1 (en) 2021-12-07 2022-12-05 Connecting structure for distal tip and bending section, and endoscope
EP22903354.3A EP4344602A4 (en) 2021-12-07 2022-12-05 Tip and continuum body connecting structure and endoscope
JP2024515885A JP7842858B2 (ja) 2021-12-07 2022-12-05 先端部と湾曲部の接続構造及び内視鏡

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202123054694.1U CN217040070U (zh) 2021-12-07 2021-12-07 先端头蛇骨连接结构及内窥镜
CN202123054694.1 2021-12-07

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WO2023103932A1 true WO2023103932A1 (zh) 2023-06-15

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US (1) US20240306890A1 (https=)
EP (1) EP4344602A4 (https=)
JP (1) JP7842858B2 (https=)
CN (1) CN217040070U (https=)
WO (1) WO2023103932A1 (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
CN217040070U (zh) * 2021-12-07 2022-07-26 广州瑞派医疗器械有限责任公司 先端头蛇骨连接结构及内窥镜
JP2024017277A (ja) * 2022-07-27 2024-02-08 富士フイルム株式会社 内視鏡の接続構造
CN115349810B (zh) * 2022-08-23 2023-05-23 湖南英术生命科技有限公司 一种内窥镜先端头与蛇骨的连接结构及内窥镜

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