WO2023071852A1 - Bouton d'aspiration, ensemble soupape d'aspiration et endoscope - Google Patents

Bouton d'aspiration, ensemble soupape d'aspiration et endoscope Download PDF

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Publication number
WO2023071852A1
WO2023071852A1 PCT/CN2022/125752 CN2022125752W WO2023071852A1 WO 2023071852 A1 WO2023071852 A1 WO 2023071852A1 CN 2022125752 W CN2022125752 W CN 2022125752W WO 2023071852 A1 WO2023071852 A1 WO 2023071852A1
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WO
WIPO (PCT)
Prior art keywords
suction
suction button
button
sealing
sealing part
Prior art date
Application number
PCT/CN2022/125752
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English (en)
Chinese (zh)
Inventor
贾晓峰
熊金云
Original Assignee
湖南省华芯医疗器械有限公司
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 湖南省华芯医疗器械有限公司 filed Critical 湖南省华芯医疗器械有限公司
Publication of WO2023071852A1 publication Critical patent/WO2023071852A1/fr

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/28—Surgical forceps
    • A61B17/29—Forceps for use in minimally invasive surgery
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/22—Valves or arrangement of valves

Definitions

  • the utility model relates to a suction button, in particular to a suction button, a suction valve assembly and an endoscope.
  • the handle portion of the endoscope usually used for surgery is provided with a suction valve, and the far end of the insertion part is provided with a suction port, and the insertion part is provided with a suction pipeline communicated with the suction port.
  • the connection or disconnection with the external negative pressure source is provided.
  • the suction port is connected with the negative pressure source pipeline, so that the suction port can be sucked out, and the body fluid of the internal diseased tissue and the excised diseased tissue can be sucked out.
  • the piston in the suction valve returns to its original position, and the connection between the suction port and the negative pressure source pipeline is cut off to stop the suction from the suction port.
  • the piston of the suction valve is usually reset by a built-in spring.
  • the suction valve with this structure has complicated structural features; It is very easy to cause infection when used for the first time.
  • the purpose of the first aspect of the utility model is to provide a suction button, the suction button is a hollow structure, including an elastic body, one end of the elastic body is a pressing end, and the other end is a fixed end;
  • a first sealing portion is provided on the inner wall of the elastic body near the pressing end, and a second sealing portion is provided on the inner wall of the elastic body near the fixed end; when the suction button is axially compressed and deformed, the first sealing portion Interference fit with the second sealing part.
  • first sealing part is a protruding structure extending axially toward the fixed end
  • second sealing part is a protruding structure extending axially toward the pressing end, when the suction button is axially When deformed under pressure, the first sealing portion fits inside the second sealing portion.
  • first sealing part is a convex structure extending axially toward the fixed end
  • second sealing part is a groove structure with an opening facing the first sealing part, when the suction button axially When deformed under pressure, the first sealing part is embedded in the second sealing part.
  • the pressing end is provided with a pressing part, and the pressing part is used to accept the external pressing force on the suction button.
  • the fixing end is provided with a fixing part, and the fixing part is used to fix the suction button on other components.
  • the fixed end is provided with a limiting portion extending along the axial direction of the suction button, and the limiting portion is in the shape of a slot.
  • a plurality of exhaust parts are uniformly arranged on the suction button, the exhaust parts pass through the suction button, and the exhaust parts are located between the first sealing part and the second sealing part.
  • the attraction button is made of silicone material.
  • a second aspect of the present invention provides a suction valve assembly, which includes a suction valve main body and the aforementioned suction button, and the suction button is detachably mounted on the suction valve main body.
  • the third aspect of the present utility model provides an endoscope, which includes a handle part and an insertion part, and the aforementioned suction valve assembly is provided on the handle part.
  • the utility model provides a first sealing part and a second sealing part on the inner wall of the elastic body of the suction button, through which the first sealing part and the second
  • the interference fit of the sealing part makes the suction button have both elastic reset and sealing functions
  • the suction button in the utility model is preferably made of silica gel or a rubber material that has no toxic side effects on the human body and is not easy to corrode, thereby avoiding damage to the patient. secondary infection.
  • the utility model can avoid curling and deformation during the installation process of the suction button by setting a limit part at the fixed end, and at the same time, it can also position the suction button in the circumferential direction.
  • Fig. 1 is a schematic structural view of an attraction button in an embodiment of the present invention
  • Fig. 2 is a structural schematic diagram of another angle of the attraction button shown in Fig. 1;
  • Fig. 3 is a sectional view of the suction button shown in Fig. 1;
  • Fig. 4 is a sectional view of a suction button in another embodiment of the present invention.
  • Fig. 5 is a partial cross-sectional schematic diagram of an attraction button in another embodiment of the present invention.
  • Fig. 6 is a schematic structural diagram of the suction valve in an embodiment of the present invention.
  • Fig. 7 is a sectional view of the suction valve shown in Fig. 6;
  • 1-elastic main body 11-first sealing part, 12-second sealing part, 13-exhaust part, 14-groove, 2-pressing end, 21-pressing part, 3-fixed end, 31- Fixed part, 4-suction valve body, 5-piston rod.
  • An endoscope is a commonly used medical device.
  • a conventional endoscope includes an operating part (also referred to as a handle) and an insertion part.
  • the handle part is used for manipulating the insertion part to enter the human body, and controls the direction of the insertion part through the handle part, so as to provide doctors with images of lesion sites.
  • the insertion part of the endoscope is provided with a suction pipeline connected to the suction port on the front end surface.
  • the function of the suction valve is to connect the suction pipeline with the external negative pressure source pipeline.
  • the negative pressure source includes a suction pump, a negative pressure machine, etc.
  • the endoscope suction valve in the prior art usually realizes the piston reset of the suction valve through a built-in spring.
  • the suction valve with this structure has complicated structural features.
  • the return spring contacts the liquid leaking from the valve body The springs will rust and become highly susceptible to infection during secondary use.
  • one embodiment of the present invention provides a suction button
  • the suction button is a hollow structure, including an elastic body 1, and one end of the elastic body 1 is a pressing end 2. The other end is the fixed end 3;
  • the inner wall of the elastic main body 1 close to the pressing end 2 is provided with a first sealing portion 11, and the inner wall of the elastic main body 1 close to the fixed end 3 is provided with a second sealing portion 12; when the suction button is axially compressed and deformed , the first sealing part 11 and the second sealing part 12 are in interference fit.
  • the elastic body 1 is the main part of the suction button, and the main part of the suction button is an elastic material with elasticity. That is, when the elastic body 1 is pressed in the axial direction, it will deform in the axial direction, and when the pressure disappears, the elastic body 1 returns to its original shape under the action of its own elastic force.
  • the pressing end 2 is used to withstand the extrusion force that causes the suction button to deform axially. Specifically, if the piston rod 5 is abutted against the pressing end 2, when the piston rod 5 is pressed in the axial direction, the piston rod 5 will The extrusion force is transmitted to the pressing end 2, and the pressing end 2 overcomes the self-elastic force of the suction button after being pressed, so that the suction button is deformed in the axial direction.
  • the fixed end 3 is used to fix the suction button on other components and cooperate with other components.
  • the fixed end 3 of the elastic body 1 can be fixedly connected to the main body 4 of the suction valve.
  • the above-mentioned suction button is used in conjunction with the suction valve.
  • the suction valve usually uses a return spring to reset the piston in the valve, but the spring will be corroded and rusted under the action of the outside air and the tissue fluid leaked from the suction valve, which is very easy to cause secondary damage to the human body. infection.
  • the above-mentioned suction button can be installed on the suction valve instead of the spring; the advantage of this is: one can realize the reset effect on the piston rod 5 due to the self-elasticity of the suction button; When the button is axially pressed, the first sealing part 11 and the second sealing part 12 in the suction button are in interference fit, so as to realize the sealing effect on the suction passage in the suction valve.
  • the first sealing part 11 and the second sealing part 12 are provided on the inner wall of the elastic body 1 of the suction button, and the first sealing part
  • the interference fit between the part 11 and the second sealing part 12 makes the suction button have both elastic reset and sealing functions; and the suction button in this embodiment is made of elastic material, preferably silica gel or has no toxic side effects on the human body, is not easy to Made of corroded rubber material, 1) thus avoiding secondary infection to the patient.
  • the first sealing part 11 is an annular protruding structure extending axially toward the fixed end 3, and the second sealing part 12 It is an annular protruding structure extending axially toward the pressing end 2 , and when the suction button is axially compressed and deformed, the first sealing portion 11 is inserted into the inner side of the second sealing portion 12 .
  • the first sealing part 11 when the pressing end 2 of the elastic body 1 is pressed in the axial direction, the first sealing part 11 is close to the second sealing part 12, and the first sealing part 11 is embedded inside the second sealing part 12, so that the first sealing part 11
  • the outer surface of the sealing portion 11 is in interference fit with the inner surface of the second sealing portion 12 .
  • the outer diameter of the protruding structure of the first sealing part 11 is slightly larger than the inner diameter of the protruding structure of the second sealing part 12 .
  • the difference between the outer diameter of the protruding structure of the first sealing part 11 and the inner diameter of the protruding structure of the second sealing part 12 is 0.1-0.2 mm.
  • first sealing portion 11 and the second sealing portion 12 are elastic, when the raised structure of the first sealing portion 11 enters the inner side of the raised structure of the second sealing portion 12, both of them are slightly deformed; After the protruding structure of the first sealing part 11 enters the inside of the protruding structure of the second sealing part 12 , under the action of elastic force, the first sealing part 11 and the second sealing part 12 are closely attached together.
  • the protruding structure of the second sealing part 12 is integrally connected with the inner wall of the elastic body 1, that is, the first There is no groove 14 between the protruding structure of the second sealing portion 12 and the inner wall of the elastic body 1 .
  • the first sealing portion 11 is a protruding structure extending axially toward the fixed end 3
  • the second sealing portion 12 is open toward the The groove structure of the first sealing part 11 allows the first sealing part 11 to embed into the second sealing part 12 when the suction button is axially compressed and deformed.
  • the cooperation between the first sealing part 11 and the second sealing part 12 is realized through the cooperation between the protrusion 11 and the groove structure 12 .
  • the width of the groove is slightly smaller than the width of the protrusion.
  • the width of the protrusion structure of the first sealing part 11 is 0.1-0.2 mm different from the width of the groove structure of the second sealing part 12 .
  • first sealing portion 11 and the second sealing portion 12 are elastic, when the protruding structure of the first sealing portion 11 enters the groove structure of the second sealing portion 12, the first sealing portion 11 and the second sealing portion The first sealing part 12 is slightly deformed, and after the protruding structure of the first sealing part 11 enters the groove structure of the second sealing part 12, under the action of elastic force, the first sealing part 11 and the second sealing part 12 are in close contact with each other. Together.
  • the pressing end 2 is provided with a pressing portion 21, and the pressing portion 21 is used to accept the pressing force of the outside on the suction button.
  • the pressing portion 21 is a groove structure, when the piston rod 5 abuts in the groove, the end surface of the piston rod 5 and the outer wall of the pressing end 2 of the elastic body 1 are smoothly transitioned, so that Enhances the integrity and aesthetics of the suction valve assembly.
  • the fixing end 3 is provided with a fixing part 31, and the fixing part 31 is used for fixing the suction button on other components.
  • the said fixing is integrally provided on the inner wall of the elastic main body 1 with an annular groove, and the corresponding position of other components (such as the suction valve main body 4) is provided with a protrusion matching the structure and position of the annular groove.
  • the protruding structure on other components will be embedded in the groove of the suction button fixing part 31 to realize the fixation of the suction button.
  • the fixed end 3 is provided with a limiting portion 32 extending along the axial direction of the suction button, and the limiting portion 32 is in a slot structure.
  • the elastic body 1 when the suction button is installed on other components (such as the main body of the suction valve), the elastic body 1 is prone to curling and deformation, and the elastic body 1 may also move in one direction.
  • the limit portion 32 at the fixed end 3 the curling and deformation during the installation of the suction button can be avoided, and at the same time, the suction button can be positioned in the circumferential direction.
  • the limiting portion 32 is configured as a slot-shaped structure.
  • the contacting surfaces of the attraction button and other components can also be arranged in a wave shape, and the elastic button can be prevented from moving in the circumferential direction through mutual fitting of the contacting surfaces.
  • a plurality of exhaust parts 13 are uniformly arranged on the suction button, and the exhaust parts 13 pass through the suction button, and the exhaust parts 13 are located between the first sealing part 11 and the second sealing part. Section 12 between.
  • the plurality of exhaust parts 13 are evenly arranged on the elastic body 1, so that the strength of each part of the elastic body 1 is consistent.
  • the first sealing part 11 Interference fit with the second sealing part 12, thereby isolating the exhaust part 13 from the suction channel of the suction valve, ensuring the sealing of the suction channel.
  • the suction button is made of silicone material.
  • a suction valve assembly which includes a suction valve main body 4, the aforementioned suction button, and the suction button is detachably installed On the main body 4 of the suction valve.
  • the suction valve in this implementation uses the above-mentioned suction button instead of the spring, which is sleeved on the piston rod 5 and the main body of the suction valve. 4; due to the elastic effect of the suction button itself, the reset effect on the piston rod 5 can be realized; at the same time, when the suction button is pressed axially, the first sealing part 11 and the second sealing part 12 in the suction button interfere Cooperate, so that the sealing effect on the suction passage in the suction valve can be realized.
  • an endoscope is provided, and the endoscope includes a handle part and an insertion part, and the aforementioned suction valve assembly is arranged on the handle part.
  • the endoscope in the above scheme can realize the smooth suction of excess fluid in the lesion of the patient by using the aforementioned suction valve assembly; and the use of the above-mentioned suction button not only enhances the sealing effect on the suction channel in the endoscope, but also the above-mentioned suction
  • the button is not easy to be damaged and corroded, which avoids secondary infection of the patient.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Veterinary Medicine (AREA)
  • General Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Public Health (AREA)
  • Animal Behavior & Ethology (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Anesthesiology (AREA)
  • Hematology (AREA)
  • Vascular Medicine (AREA)
  • Ophthalmology & Optometry (AREA)
  • Pulmonology (AREA)
  • Endoscopes (AREA)

Abstract

L'invention concerne un bouton d'aspiration, un ensemble soupape d'aspiration et un endoscope. Le bouton d'aspiration est d'une structure creuse et comprend un corps principal élastique (1), une extrémité du corps principal élastique (1) est une extrémité de pression (2), et l'autre extrémité de celui-ci est une extrémité de fixation (3) ; une paroi interne du corps principal élastique (1) qui est proche de l'extrémité de pression (2) est pourvue d'une première partie d'étanchéité (11), et une paroi interne du corps principal élastique (1) qui est proche de l'extrémité de fixation (3) est pourvue d'une seconde partie d'étanchéité (12) ; et la première partie d'étanchéité (11) est en ajustement serré avec la seconde partie d'étanchéité (12) lorsque le bouton d'aspiration est axialement comprimé et déformé. Le bouton d'aspiration a à la fois des fonctions de réinitialisation et d'étanchéité élastiques. De plus, le bouton d'aspiration est de préférence fait d'un gel de silice ou d'un matériau de caoutchouc non corrosif qui n'a pas d'effet secondaire toxique sur le corps humain, évitant ainsi une infection secondaire à un patient.
PCT/CN2022/125752 2021-10-28 2022-10-17 Bouton d'aspiration, ensemble soupape d'aspiration et endoscope WO2023071852A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202122608515.8U CN216366110U (zh) 2021-10-28 2021-10-28 一种吸引按钮、吸引阀组件及内窥镜
CN202122608515.8 2021-10-28

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WO2023071852A1 true WO2023071852A1 (fr) 2023-05-04

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WO (1) WO2023071852A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN216366110U (zh) * 2021-10-28 2022-04-26 湖南省华芯医疗器械有限公司 一种吸引按钮、吸引阀组件及内窥镜
CN115089091B (zh) * 2022-06-30 2023-06-30 湖南省华芯医疗器械有限公司 一种吸引阀组件、内窥镜手柄及内窥镜

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102406497A (zh) * 2010-09-22 2012-04-11 富士胶片株式会社 内窥镜的吸引按钮组件
JP2012071021A (ja) * 2010-09-29 2012-04-12 Fujifilm Corp 内視鏡の吸引ボタン
JP2012075473A (ja) * 2010-09-30 2012-04-19 Fujifilm Corp 内視鏡の吸引ボタン
CN102697445A (zh) * 2010-09-29 2012-10-03 富士胶片株式会社 内窥镜用吸引按钮
CN216366110U (zh) * 2021-10-28 2022-04-26 湖南省华芯医疗器械有限公司 一种吸引按钮、吸引阀组件及内窥镜

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102406497A (zh) * 2010-09-22 2012-04-11 富士胶片株式会社 内窥镜的吸引按钮组件
JP2012071021A (ja) * 2010-09-29 2012-04-12 Fujifilm Corp 内視鏡の吸引ボタン
CN102697445A (zh) * 2010-09-29 2012-10-03 富士胶片株式会社 内窥镜用吸引按钮
JP2012075473A (ja) * 2010-09-30 2012-04-19 Fujifilm Corp 内視鏡の吸引ボタン
CN216366110U (zh) * 2021-10-28 2022-04-26 湖南省华芯医疗器械有限公司 一种吸引按钮、吸引阀组件及内窥镜

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