WO2022213452A1 - 插入结构及内窥镜 - Google Patents

插入结构及内窥镜 Download PDF

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Publication number
WO2022213452A1
WO2022213452A1 PCT/CN2021/094800 CN2021094800W WO2022213452A1 WO 2022213452 A1 WO2022213452 A1 WO 2022213452A1 CN 2021094800 W CN2021094800 W CN 2021094800W WO 2022213452 A1 WO2022213452 A1 WO 2022213452A1
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WO
WIPO (PCT)
Prior art keywords
installation groove
liquid inlet
liquid
liquid return
channel
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PCT/CN2021/094800
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English (en)
French (fr)
Inventor
易锋
黎静
张磊
Original Assignee
广州瑞派医疗器械有限责任公司
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Publication of WO2022213452A1 publication Critical patent/WO2022213452A1/zh

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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
    • A61B1/012—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 characterised by internal passages or accessories therefor
    • A61B1/015—Control of fluid supply or evacuation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • 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
    • 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
    • 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
    • A61B1/00131—Accessories for 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
    • A61B1/04—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 combined with photographic or television appliances
    • 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
    • A61B1/06—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 with illuminating arrangements
    • 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
    • A61B1/06—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 with illuminating arrangements
    • A61B1/0661—Endoscope light sources
    • A61B1/0684—Endoscope light sources using light emitting diodes [LED]

Definitions

  • the present application relates to the technical field of medical devices, such as insertion structures and endoscopes.
  • endoscope As an important auxiliary medical device, endoscope is widely used in various surgeries. It mainly integrates image sensors, optical lenses, light source lighting and other equipment. During use, the insertion part is first inserted into the body, so that the lens on the tip head can acquire image information of the lesion; then the acquired image information is transmitted to the visual device for doctors to observe the lesion in real time. In addition, during the operation, it is necessary to perform water inflow and backwater operations on the lesion site so that the lens can obtain clear images.
  • endoscopes on the market are mainly divided into soft and rigid endoscopes.
  • both flexible and rigid scopes are limited by their structural design defects, resulting in only one channel at most on the endoscope.
  • traditional endoscopes need to be equipped with different scope sheaths to assist in the completion of water return or water entry operations.
  • this solution can easily lead to a longer manufacturing process of the endoscope and an increase in the overall manufacturing cost.
  • the present application provides an insertion structure and an endoscope, which can reduce the overall manufacturing difficulty and reduce the overall manufacturing cost.
  • An embodiment provides an insertion structure, the insertion structure includes: a front end head, a first installation groove is formed on the front end head, and a side surface of the front end head facing away from the slot of the first installation groove is spaced apart There are a liquid inlet hole, a light outlet hole and an endoscope hole; a lens tube and a liquid inlet tube, the lens tube and the liquid inlet tube are respectively inserted into the first installation groove, and the liquid inlet tube is provided with a liquid inlet channel, The liquid inlet channel is communicated with the liquid inlet hole, the light outlet hole and the endoscope hole are respectively communicated with the inside of the lens tube; a liquid return pipe, a liquid return channel is arranged in the liquid return pipe, and the liquid return pipe is provided with a liquid return channel. One end of the pipe is connected to the front end, and the liquid return channel is set to communicate with the outside world.
  • the lens tube and the liquid inlet tube are inserted into the first installation groove at the same time, so that both the light exit hole and the endoscope hole are connected with the lens tube;
  • the inlet channel in the tube communicates.
  • the liquid return pipe is installed on the front end head, so that the liquid return channel is communicated with the outside world (such as in the visual field observation area), so as to form an endoscope that integrates a lens part and a liquid inlet and return part at the same time.
  • the multi-chamber structure of the front end head is cleverly used, so that the self-integration and liquid return functions do not need to be additionally matched with different mirror sheath structures, which effectively reduces the overall production difficulty and reduces the overall production cost.
  • the use of the tip head structure also improves the assembly efficiency of the endoscope.
  • liquid is passed into the liquid inlet channel, so that the liquid flows into the visual field observation area through the liquid inlet hole. Since the liquid return channel is directly communicated with the outside world, the liquid in the visual field observation area can directly flow into the liquid return channel to be discharged. In this way, through the structure of the apex head, the operation of liquid feeding and returning during the operation becomes more convenient, and the use performance of the endoscope product is effectively improved.
  • the front end head is provided with a second installation groove spaced apart from the first installation groove, the second installation groove runs through opposite sides of the front end head, and the liquid return The pipe is installed on the groove wall of the second installation groove.
  • the front end head is further provided with an opening communicating with the second installation groove, and at least a part of the side surface of the liquid return pipe protrudes out of the second installation groove from the opening A liquid return hole communicated with the liquid return channel is provided on the part of the liquid return pipe extending out of the second installation groove.
  • the insertion structure includes a fixing member, and the fixing member is configured to install the liquid return pipe on the groove wall of the second installation groove.
  • an installation gap is left between the fixing member and the groove wall of the second installation groove, and the liquid return pipe is sleeved on the fixing member and extends into the installation gap,
  • the fixing member is provided with a connecting portion, and the connecting portion is arranged to penetrate through the liquid return pipe to be connected to the groove wall of the second installation groove.
  • a slot is provided on the bottom wall of the first installation slot, the slot is communicated with the liquid inlet hole, the liquid inlet pipe is inserted into the slot, and communicates with the liquid inlet.
  • the groove walls of the slot are sealingly fitted.
  • the liquid inlet tube is sleeved in the lens tube, the lens tube is inserted into the first installation groove, and is in sealing fit with the groove wall of the first installation groove.
  • a first limiting portion is provided on the groove wall of the first installation groove, and a second limiting portion is provided on the lens tube for limiting and cooperating with the first limiting portion.
  • the front end head includes an end surface and a barrel portion disposed on the end surface, the first installation groove and the second installation groove are arranged on the barrel portion in parallel and spaced apart, The liquid inlet hole, the endoscope hole and the light outlet hole are respectively arranged on the end surface.
  • the liquid inlet hole and the liquid return channel are respectively located on opposite sides of the endoscope hole.
  • An embodiment provides an endoscope, the endoscope includes a base body and the insertion structure described in any one of the above, the base body is provided with a first flow channel, a second flow channel, a third flow channel and a fourth flow channel, the first flow channel is communicated with the second flow channel, the third flow channel is communicated with the fourth flow channel, the liquid inlet pipe and the liquid return pipe of the insertion structure They are respectively arranged on the seat body, the liquid inlet channel in the liquid inlet pipe is communicated with the second flow channel, and the liquid return channel in the liquid return tube is communicated with the third flow channel.
  • the above-mentioned endoscope adopts the above insertion structure.
  • the lens tube and the liquid inlet tube are inserted into the first installation groove at the same time, so that both the light exit hole and the endoscope hole are communicated with the lens tube;
  • the liquid inlet hole is communicated with the liquid inlet channel in the liquid inlet pipe.
  • the liquid return pipe is installed on the front end head, so that the liquid return channel is communicated with the outside world (such as in the visual field observation area), so as to form an endoscope that integrates a lens part and a liquid inlet and return part at the same time.
  • the multi-chamber structure of the front end head is cleverly used, so that the self-integration and liquid return functions do not need to be additionally matched with different mirror sheath structures, which effectively reduces the overall production difficulty and reduces the overall production cost.
  • the use of the tip head structure also improves the assembly efficiency of the endoscope.
  • liquid is passed into the liquid inlet channel, so that the liquid flows into the visual field observation area through the liquid inlet hole. Since the liquid return channel is directly communicated with the outside world, the liquid in the visual field observation area can directly flow into the liquid return channel to be discharged. In this way, through the structure of the apex head, the operation of liquid feeding and returning during the operation becomes more convenient, and the use performance of the endoscope product is effectively improved.
  • FIG. 1 is a schematic diagram of the insertion structure described in one embodiment
  • FIG. 2 is a schematic diagram 1 of the front-end head structure described in one embodiment
  • FIG. 3 is a schematic diagram 2 of the front-end head structure described in one embodiment
  • FIG. 4 is a schematic structural diagram of the liquid inlet tube, the lens tube and the liquid return tube described in one embodiment
  • FIG. 5 is a schematic structural diagram of the endoscope described in one embodiment.
  • 100 insertion structure; 110, tip head; 111, first installation slot; 112, second installation slot; 1121, opening; 1122, partition; 113, slot; 114, liquid inlet; 115, endoscope hole; 116, light exit hole; 117, first limit part; 1171, limit protrusion; 118, end surface; 119, barrel part; 120, lens tube; 121, second limit part; 1211, limit groove ; 130, liquid inlet pipe; 131, liquid inlet channel; 140, liquid return pipe; 141, liquid return channel; 142, side of pipe; 143, liquid return hole; 150, fixing part; 151, connecting part; 152, installation clearance 200, seat body; 210, first flow channel; 220, second flow channel; 230, third flow channel; 240, fourth flow channel; 250, operation flow channel.
  • the insertion structure 100 includes a tip head 110 , a lens tube 120 , a liquid inlet pipe 130 and a liquid return pipe 140 .
  • the front end head 110 is provided with a first installation groove 111 , and a liquid inlet hole 114 , a light outlet hole 116 and an endoscope hole 115 are spaced on the side surface of the front end head 110 facing away from the notch of the first installation groove 111 .
  • the lens tube 120 and the liquid inlet tube 130 are both inserted into the first installation groove 111 .
  • the liquid inlet pipe 130 is provided with a liquid inlet channel 131 .
  • the liquid inlet channel 131 communicates with the liquid inlet hole 114 . Both the light exit hole 116 and the endoscope hole 115 communicate with the inside of the lens tube 120 .
  • the liquid return pipe 140 is provided with a liquid return channel 141, one end of the liquid return pipe 140 is connected to the front end head 110, and the liquid return channel 141 is set to communicate with the outside world.
  • the lens tube 120 and the liquid inlet tube 130 are inserted into the first installation groove 111 at the same time, so that both the light exit hole 116 and the endoscope hole 115 are communicated with the lens tube 120;
  • the liquid inlet hole 114 is communicated with the liquid inlet channel 131 in the liquid inlet pipe 130 .
  • the liquid return tube 140 is installed on the front end head 110, and the liquid return channel 141 communicates with the outside world (eg, in the viewing area), so as to form an endoscope that integrates a lens part and a liquid inlet and return part at the same time.
  • the multi-chamber structure of the front end head 110 is cleverly used, so that the self-integration and liquid return functions do not need to be additionally matched with different scope sheath structures, which effectively reduces the overall production difficulty and makes the overall production cost. reduce.
  • using the structure of the tip head 110 also improves the assembly efficiency of the endoscope.
  • liquid such as clear water, physiological saline or other medicines
  • the liquid return channel 141 is directly communicated with the outside world, the liquid in the visual field observation area can directly flow into the liquid return channel 141 to be discharged. In this way, through the structure of the apex head 110 , the operation of liquid feeding and returning during the operation becomes more convenient, and the use performance of the endoscope product is effectively improved.
  • the communication between the liquid return channel 141 and the outside should be understood as: when the liquid return pipe 140 is connected to the front end head 110 , one end of the liquid return channel 141 close to the front end head 110 is directly exposed to the outside.
  • the outside world is the visual field observation area, which can also be understood as the human body.
  • the liquid return channel 141 communicates with the visual field observation area.
  • the connection method between the liquid return pipe 140 and the front end head 110 may be, but not limited to, bolt connection, snap connection, riveting connection, pin connection, welding, integral molding, and the like.
  • the integral molding method includes extrusion molding, injection molding, and die casting.
  • the endoscopic hole 115 in this embodiment is a port corresponding to an imaging component (eg, a miniature camera, etc.), that is, the imaging component can obtain image information of the lesion through the endoscopic hole 115 .
  • the imaging assembly can be directly installed in the endoscope hole 115 , and at this time, components such as wires required by the imaging assembly are arranged in the lens tube 120 .
  • a lens may be covered over the endoscope hole 115 .
  • the light exit hole 116 is the port corresponding to the lighting component (eg, a cold light source such as an LED), that is, the lighting component provides light to the lesion through the light exit hole 116 , wherein the lighting component can also be directly installed in the light exit hole 116 .
  • the light exit hole 116 may also be covered with a lens.
  • the liquid inlet tube 130 and the lens tube 120 can be arranged in various ways in the first installation groove 111, for example, the liquid inlet tube 130 and the lens tube 120 are inserted into the first installation groove 111 in parallel; or, the liquid inlet tube 130 The lens tube 120 is sleeved in the lens tube 120, and then the lens tube 120 is inserted into the first installation slot 111; or, the lens tube 120 is sleeved in the liquid inlet tube 130, and then the liquid inlet tube 130 is inserted into the first installation slot 111. medium.
  • the tip head 110 is provided with a second installation groove 112 spaced from the first installation groove 111 .
  • the second installation groove 112 penetrates through opposite sides of the front end head 110 , so that both ends of the second installation groove 112 are kept in communication with the outside world.
  • the liquid return pipe 140 is installed on the groove wall of the second installation groove 112
  • the liquid return channel 141 is kept in communication with the outside world, so that the liquid in the visual field observation area flows out from the liquid return channel 141 and is discharged.
  • a second installation groove 112 is formed on the front end head 110, and the liquid return pipe 140 is installed in the second installation groove 112, so that a part of the liquid return pipe 140 is embedded in the front end head 110 to reduce the space occupied by the front end of the insertion structure 100 , in order to realize the miniaturized design of endoscope.
  • first installation groove 111 and the second installation groove 112 are spaced apart and not communicated with each other, and there is a partition 1122 between them, so as to ensure the stable flow of the liquid in the viewing area without cross flow. .
  • an opening 1121 that communicates with the second installation groove 112 is provided on the front end head 110 .
  • At least a part of the side surface 142 of the liquid return pipe 140 protrudes out of the second installation groove 112 from the opening 1121 , and the part of the liquid return pipe 140 extending out of the second installation groove 112 is provided with a liquid return hole that communicates with the liquid return channel 141 143. It can be seen from this that when the liquid return pipe 140 is installed in the second installation groove 112, at least a part thereof protrudes from the opening 1121, and a liquid return hole 143 is formed on the extended part.
  • the shape of the second installation groove 112 may have various designs, for example, the shape of the second installation groove 112 may be a semicircle, a semiellipse, a square, a trapezoid, or other polygonal shapes.
  • the shape of the liquid return pipe 140 also has various designs, as long as it can be installed in the second installation groove 112 and can be extended from the opening 1121.
  • the liquid return hole 143 of this embodiment is not limited to be opened on the part of the liquid return pipe 140 protruding from the opening 1121, but can also be provided on other parts of the liquid return pipe 140, for example: it can also be provided On a part of the liquid return pipe 140 located in the second installation groove 112 or the like.
  • the insertion structure 100 includes a fixing member 150 .
  • the fixing member 150 is arranged to install the liquid return pipe 140 on the groove wall of the second installation groove 112 , so that the liquid return pipe 140 is stably installed in the second installation groove 112 through the fixing member 150 to ensure that the liquid is stably discharged from the liquid return. out of channel 141.
  • the fixing member 150 is a bolt, a screw, a pin, a rivet and other parts, through which the liquid return pipe is directly
  • the pipe 140 is fixed on the groove wall of the second installation groove 112; alternatively, the fixing member 150 is a buckle structure. During installation, the liquid return pipe 140 is buckled or hooked on the groove wall of the second installation groove 112 or the like.
  • an installation gap 152 is left between the fixing member 150 and the groove wall of the second installation groove 112 .
  • the liquid return pipe 140 is sleeved outside the fixing member 150 and extends into the installation gap 152 .
  • the fixing member 150 is provided with a connecting portion 151 .
  • the connection part 151 penetrates the liquid return pipe 140 and is connected to the groove wall of the second installation groove 112 . In this way, during installation, the liquid return pipe 140 is stably fixed and clamped in the installation gap 152 through the connection part 151 to improve the liquid return Installation stability of the tube 140 .
  • the way to use the connecting portion 151 to fix the liquid return pipe 140 between the fixing member 150 and the groove wall of the second installation groove 112 may be: sleeve the liquid return pipe 140 outside the fixing member 150 so that it extends. into the installation gap 152; then the connecting part 151 is inserted through the liquid return pipe 140 to connect it to the groove wall of the second installation groove 112; or, the fixing part 150 is connected to the groove of the second installation groove 112 through the connecting part 151 Then, the liquid return pipe 140 is formed and fixed between the fixing member 150 and the groove wall of the second installation groove 112 by integral molding such as in-mold injection or die casting.
  • the fixing member 150 is integrally connected to the groove wall of the second installation groove 112 through the connecting portion 151 , so that an installation gap 152 is formed between the fixing member 150 and the groove wall of the second installation groove 112 .
  • the liquid return pipe 140 is connected to the connecting portion 151 in an integral molding manner (die casting or injection molding, etc.), and is sleeved outside the fixing member 150 . In this way, the molding process of the insertion structure 100 is simplified, and the overall manufacturing cost of the endoscope is reduced.
  • the number of the connection parts 151 may be one, two, three or more.
  • the multiple connecting portions 151 are disposed on the fixing member 150 at intervals.
  • the shape of the connecting portion 151 may have various shapes, which are not specifically limited in this embodiment, as long as the connecting portion 151 is stably connected between the fixing member 150 and the groove wall of the second installation groove 112 .
  • a side surface of the fixing member 150 facing the installation gap 152 is abutted with the inner wall of the liquid return pipe 140 .
  • the outer wall of the liquid return pipe 140 is abutted with the groove wall of the second installation groove 112 .
  • one side surface of the fixing member 150 is an arc-shaped curved surface.
  • the groove wall of the second installation groove 112 is an arc concave curved surface.
  • a slot 113 is provided on the bottom wall of the first installation slot 111 .
  • the slot 113 communicates with the liquid inlet hole 114 .
  • the liquid inlet pipe 130 is inserted into the slot 113 and is in sealing fit with the groove wall of the slot 113 . In this way, during assembly, only the liquid inlet pipe 130 needs to be inserted into the slot 113 to complete the assembly between the liquid inlet pipe 130 and the front end head 110 , which improves the assembly efficiency of the insertion structure 100 .
  • the sealing cooperation between the liquid inlet pipe 130 and the slot 113 should be understood as: when the liquid inlet pipe 130 is inserted into the slot 113, the liquid flowing out from the liquid inlet channel 131 will not flow from the gap between the liquid inlet pipe 130 and the slot 113. seepage between.
  • the sealing cooperation between the liquid inlet pipe 130 and the slot 113 may be realized by: the outer diameter of the liquid inlet pipe 130 is consistent with the inner wall size of the slot 113 , such as interference fit.
  • a sealing rubber ring or a sealing glue is applied between the liquid inlet pipe 130 and the slot 113 .
  • the liquid inlet tube 130 is sleeved inside the lens tube 120 .
  • the lens tube 120 is inserted into the first installation groove 111 , and is in sealing fit with the groove wall of the first installation groove 111 . It can be seen that the liquid inlet tube 130 of this embodiment is located in the lens tube 120 , which is beneficial to reduce the overall volume of the insertion structure 100 , facilitates miniaturized production of endoscopes, and improves the usability of the product.
  • the sealing cooperation between the lens tube 120 and the first installation groove 111 should be understood as: when the lens tube 120 is inserted into the first installation groove 111 , the external liquid will not flow from the space between the lens tube 120 and the first installation groove 111 . infiltrate.
  • the sealing cooperation between the lens tube 120 and the first installation groove 111 may be achieved by: the outer diameter of the lens tube 120 is consistent with the inner wall size of the first installation groove 111 , such as interference fit.
  • a sealing rubber ring or a sealing glue is applied between the lens tube 120 and the first installation groove 111 .
  • a first limiting portion 117 is provided on the groove wall of the first installation groove 111 .
  • the lens tube 120 is provided with a second limiting portion 121 that is limitedly matched with the first limiting portion 117 .
  • the first limiting portion 117 cooperates with the second limiting portion 121 , so that the lens tube 120 is more stable in the first installation groove 111 , and the lens tube 120 is prevented from shaking from side to side in the first installation groove 111 .
  • the first limiting portion 117 is a convex structure
  • the second limiting portion 121 is a groove or a hole-shaped structure
  • the first limiting portion 117 is a groove or a hole-shaped structure
  • the second limiting portion 121 is a convex structure.
  • the first limiting portion 117 is a limiting protrusion 1171 .
  • the limiting protrusion 1171 is arranged to cooperate with the second limiting portion 121 serving as the limiting groove 1211 .
  • align the limiting groove 1211 with the limiting protrusion 1171 push the lens tube 120 to make the limiting protrusion 1171 snap into the limiting groove 1211 , so that the lens tube 120 is stably limited in the first installation groove 111 .
  • the limiting protrusion 1171 is formed by the partition portion 1122 protruding along the inner direction of the first installation groove 111 .
  • the limiting groove 1211 is formed by a side surface of the lens tube 120 being recessed inward.
  • the front end head 110 includes an end surface portion 118 and a barrel portion 119 disposed on the end surface portion 118 .
  • the first installation groove 111 and the second installation groove 112 are arranged on the barrel portion 119 in parallel and spaced apart.
  • the liquid inlet hole 114 , the endoscope hole 115 and the light outlet hole 116 are all disposed on the end surface 118 .
  • the end face of the lens tube 120 is attached to the side surface of the end surface 118 facing the first installation slot 111 .
  • the liquid inlet hole 114 and the liquid return channel 141 are located on opposite sides of the endoscope hole 115 respectively.
  • the liquid flows in from the liquid inlet hole 114 and flows out from the liquid return channel 141, it will flow through the endoscopic hole 115 during the period, which has a certain flushing effect on the endoscopic hole 115 and ensures that the endoscopic hole 115 has a good performance. to ensure that the acquired image information is clearer and more reliable.
  • At least two light exit holes 116 are located on opposite sides of the endoscope hole 115, respectively, to ensure that both sides of the endoscope hole 115 have light, so that the endoscope can obtain clearer images.
  • the number of the light exit holes 116 may be multiple, and the multiple light exit holes 116 may be distributed along the periphery of the endoscope hole 115 at intervals.
  • the shapes of the endoscope hole 115 and the light exit hole 116 have various designs, for example, the shape of the endoscope hole 115 and the light exit hole 116 can be designed as a circle, a square, an ellipse, or other polygons. In this regard, this embodiment does not make a specific limitation, and only needs to satisfy the functions of light emitting and imaging.
  • one side of the apex 110 away from the liquid return pipe 140 is an arcuate surface, so as to reduce the overall volume of the apex 110;
  • the arc is smooth, avoiding the risk of bruising the tissue during surgery.
  • an endoscope includes a base 200 and the insertion structure 100 in any one of the above embodiments.
  • the base body 200 is provided with a first flow channel 210 , a second flow channel 220 , a third flow channel 230 and a fourth flow channel 240 .
  • the first flow channel 210 communicates with the second flow channel 220 .
  • the third flow channel 230 communicates with the fourth flow channel 240 .
  • the liquid inlet pipe 130 and the liquid return pipe 140 are both disposed on the base body 200 .
  • the liquid inlet channel 131 communicates with the second flow channel 220 .
  • the liquid return channel 141 communicates with the third flow channel 230 .
  • the above-mentioned endoscope adopts the above-mentioned insertion structure 100.
  • the lens tube 120 and the liquid inlet tube 130 are inserted into the first installation groove 111 at the same time, so that the light exit hole 116 and the endoscope hole 115 are both connected with each other.
  • the lens tube 120 is in communication; at the same time, the liquid inlet hole 114 is communicated with the liquid inlet channel 131 in the liquid inlet pipe 130 .
  • the liquid return tube 140 is installed on the front end head 110, so that the liquid return channel 141 communicates with the outside world (eg, the viewing area), so as to form an endoscope that integrates a lens part and a liquid inlet and return part at the same time.
  • the multi-chamber structure of the front end head 110 is cleverly used, so that the self-integration and liquid return functions do not need to be additionally matched with different scope sheath structures, which effectively reduces the overall production difficulty and makes the overall production cost. reduce.
  • using the structure of the tip head 110 also improves the assembly efficiency of the endoscope.
  • liquid is passed into the liquid inlet channel 131, so that the liquid flows into the viewing area through the liquid inlet hole 114. Since the liquid return channel 141 is directly communicated with the outside world, the liquid in the visual field observation area can directly flow into the liquid return channel 141 to be discharged. In this way, through the structure of the apex head 110 , the operation of liquid feeding and returning during the operation becomes more convenient, and the use performance of the endoscope product is effectively improved.
  • the second flow channels 220 and the third flow channels 230 are distributed in parallel and at intervals in the seat body 200 .
  • the base body 200 is further provided with an operation flow channel 250, and the operation flow channel 250 is communicated with the third flow channel 230, so that the operator can extend the instrument from the operation flow channel 250 to the third flow channel in sequence. in the flow channel 230 and the liquid return channel 141 .
  • first and second are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature delimited with “first”, “second” may expressly or implicitly include at least one of that feature.
  • plurality means at least two, such as two, three, etc., unless expressly and specifically defined otherwise.
  • the terms “installed”, “connected”, “connected”, “fixed” and other terms should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection , or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between the two elements, unless otherwise specified limit.
  • installed may be a fixed connection or a detachable connection , or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between the two elements, unless otherwise specified limit.
  • a first feature "on” or “under” a second feature may be in direct contact with the first and second features, or the first and second features indirectly through an intermediary touch.
  • the first feature being “above”, “over” and “above” 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 level higher than the second feature.
  • the first feature being “below”, “below” and “below” the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature has a lower level than the second feature.

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Abstract

一种插入结构(100)及内窥镜，插入结构(100)包括：先端头(110)，先端头(110)上设有第一安装槽(111)，先端头(110)背向第一安装槽(111)槽口的一侧面上间隔设有进液孔(114)、出光孔(116)和内窥孔(115)；镜头管(120)与进液管(130)，镜头管(120)与进液管(130)分别插入第一安装槽(111)中，进液管(130)内设有进液通道(131)，进液通道(131)与进液孔(114)连通，出光孔(116)与内窥孔(115)分别与镜头管(120)内连通；回液管(140)，内设有回液通道(141)，回液管(140)一端连接于先端头(110)，且回液通道(141)设置为与外界连通。内窥镜包括座体(200)及插入结构(100)。

Description

插入结构及内窥镜
本申请要求申请日为2021年4月7日、申请号为202110372229.8的中国专利申请的优先权，该申请的全部内容通过引用结合在本申请中。
技术领域
本申请涉及医疗器械技术领域，例如涉及插入结构及内窥镜。
背景技术
内窥镜作为一种重要的辅助医疗器械，广泛应用在各种手术中。其主要集成有图像传感器、光学镜头、光源照明等设备。在使用过程中，首先将插入部插入体内，使得先端头上的镜头能够获取到病灶部位的图像信息；接着获取的图像信息传送至可视装置中，以供医生实时观察病灶部位。另外，在手术过程中，需对病灶部位进行进水和回水操作，以便镜头清晰获取图像。
目前市面上的内窥镜主要分为软、硬镜两种。然而不管是软镜还是硬镜，均受限于其结构设计缺陷，导致内窥镜上至多只有一个通道。为此，传统的内窥镜需搭配不同的镜鞘，以辅助完成回水或者进水操作。然而这种方案很容易导致内窥镜的制作工艺变长，整体制作成本增加。
发明内容
本申请提供一种插入结构及内窥镜，能够降低整体的制作难度，减少整体制作成本。
一实施例提供一种插入结构，所述插入结构包括：先端头，所述先端头上设有第一安装槽，所述先端头背向所述第一安装槽槽口的一侧面上间隔设有进液孔、出光孔和内窥孔；镜头管与进液管，所述镜头管与所述进液管分别插入所述第一安装槽中，所述进液管内设有进液通道，所述进液通道与所述进液孔连通，所述出光孔与所述内窥孔分别与所述镜头管内连通；回液管，所述回液管内设有回液通道，所述回液管一端连接于所述先端头，且所述回液通道设置为与外界连通。
上述的插入结构，在内窥镜制作过程中，将镜头管与进液管同时插入第一安装槽中，使得出光孔与内窥孔均与镜头管连通；同时也使得进液孔与进液管 中的进液通道连通。将回液管安装在先端头上，使得回液通道与外界(比如视野观察区域内)连通，以构成一个同时集成有镜头部分和进回液部分的内窥镜。本内窥镜在制作过程中，巧妙利用先端头的多腔式结构，使得自身集成进、回液功能，无需额外搭配不同的镜鞘结构，有效降低整体的制作难度，使得整体制作成本得到降低。此外，利用先端头结构，也提升了内窥镜的装配效率。另外，在使用过程中，向进液通道中通液体，使得液体通过进液孔中流至视野观察区域内。由于回液通道直接与外界连通，因此，视野观察区域中的液体可直接流入回液通道中予以排出。如此，通过本先端头结构，使得手术中的进回液操作变得更加便利，有效提升内窥镜产品的使用性能。
在其中一个实施例中，所述先端头上设有与所述第一安装槽隔开分布的第二安装槽，所述第二安装槽贯穿所述先端头的相对两侧，所述回液管装设于所述第二安装槽的槽壁上。
在其中一个实施例中，所述先端头上还设有与所述第二安装槽连通的开口，所述回液管的管侧面至少一部分从所述开口处伸出所述第二安装槽外，所述回液管伸出所述第二安装槽外的部分上设有与所述回液通道连通的回液孔。
在其中一个实施例中，所述插入结构包括固定件，所述固定件设置为将所述回液管装设于所述第二安装槽的槽壁上。
在其中一个实施例中，所述固定件与所述第二安装槽的槽壁之间留有安装间隙，所述回液管套设于所述固定件，并伸至所述安装间隙内，所述固定件上设有连接部，所述连接部设置为贯穿所述回液管以连接于所述第二安装槽的槽壁上。
在其中一个实施例中，所述第一安装槽的底壁上设有插槽，所述插槽与所述进液孔连通，所述进液管插入所述插槽中，并与所述插槽的槽壁密封配合。
在其中一个实施例中，所述进液管套设于所述镜头管内，所述镜头管插入所述第一安装槽中，并与所述第一安装槽的槽壁密封配合。
在其中一个实施例中，所述第一安装槽的槽壁上设有第一限位部，所述镜头管上设有与所述第一限位部限位配合的第二限位部。
在其中一个实施例中，所述先端头包括端面部及设置于所述端面部的筒身部，所述第一安装槽与所述第二安装槽并列间隔设置于所述筒身部上，所述进液孔、所述内窥孔和所述出光孔分别设置于所述端面部上。
在其中一个实施例中，所述进液孔与所述回液通道分别位于所述内窥孔的 相对两侧。
一实施例提供一种内窥镜，所述内窥镜包括座体与以上任意一项所述的插入结构，所述座体上设有第一流道、第二流道、第三流道和第四流道，所述第一流道与所述第二流道连通，所述第三流道与所述第四流道连通，所述插入结构的所述进液管与所述回液管分别设置于所述座体上，所述进液管内的所述进液通道与所述第二流道连通，所述回液管内的所述回液通道与所述第三流道连通。
上述的内窥镜，采用以上的插入结构，在内窥镜制作过程中，将镜头管与进液管同时插入第一安装槽中，使得出光孔与内窥孔均与镜头管连通；同时也使得进液孔与进液管中的进液通道连通。将回液管安装在先端头上，使得回液通道与外界(比如视野观察区域内)连通，以构成一个同时集成有镜头部分和进回液部分的内窥镜。本内窥镜在制作过程中，巧妙利用先端头的多腔式结构，使得自身集成进、回液功能，无需额外搭配不同的镜鞘结构，有效降低整体的制作难度，使得整体制作成本得到降低。此外，利用先端头结构，也提升了内窥镜的装配效率。另外，在使用过程中，向进液通道中通液体，使得液体通过进液孔中流至视野观察区域内。由于回液通道直接与外界连通，因此，视野观察区域中的液体可直接流入回液通道中予以排出。如此，通过本先端头结构，使得手术中的进回液操作变得更加便利，有效提升内窥镜产品的使用性能。
附图说明
图1为一个实施例中所述的插入结构示意图；
图2为一个实施例中所述的先端头结构示意图一；
图3为一个实施例中所述的先端头结构示意图二；
图4为一个实施例中所述的进液管、镜头管及回液管结构示意图；
图5为一个实施例中所述的内窥镜结构示意图。
100、插入结构；110、先端头；111、第一安装槽；112、第二安装槽；1121、开口；1122、分隔部；113、插槽；114、进液孔；115、内窥孔；116、出光孔；117、第一限位部；1171、限位凸起；118、端面部；119、筒身部；120、镜头管；121、第二限位部；1211、限位凹槽；130、进液管；131、进液通道；140、回液管；141、回液通道；142、管侧面；143、回液孔；150、固定件；151、连接部；152、安装间隙；200、座体；210、第一流道；220、第二流道；230、第三 流道；240、第四流道；250、操作流道。
具体实施方式
在一个实施例中，请参考图1、图3及图4，一种插入结构100，插入结构100包括：先端头110、镜头管120、进液管130和回液管140。先端头110上设有第一安装槽111，先端头110背向第一安装槽111槽口的一侧面上间隔设有进液孔114、出光孔116和内窥孔115。镜头管120与进液管130均插入第一安装槽111中。进液管130内设有进液通道131。进液通道131与进液孔114连通。出光孔116与内窥孔115均与镜头管120内连通。回液管140内设有回液通道141，回液管140的一端连接于先端头110，回液通道141设置为与外界连通。
上述的插入结构100，在内窥镜制作过程中，将镜头管120与进液管130同时插入第一安装槽111中，使得出光孔116与内窥孔115均与镜头管120连通；同时也使得进液孔114与进液管130中的进液通道131连通。将回液管140安装在先端头110上，且回液通道141与外界(比如视野观察区域内)连通，以构成一个同时集成有镜头部分和进回液部分的内窥镜。本内窥镜在制作过程中，巧妙利用先端头110的多腔式结构，使得自身集成进、回液功能，无需额外搭配不同的镜鞘结构，有效降低整体的制作难度，使得整体制作成本得到降低。此外，利用先端头110结构，也提升了内窥镜的装配效率。另外，在使用过程中，向进液通道131中通液体(例如清水、生理盐水或者其他药水等)，使得液体通过进液孔114流至视野观察区域内。由于回液通道141直接与外界连通，因此，视野观察区域中的液体可直接流入回液通道141中予以排出。如此，通过本先端头110结构，使得手术中的进回液操作变得更加便利，有效提升内窥镜产品的使用性能。
在一实施例中，回液通道141与外界连通应理解为：回液管140连接在先端头110上时，回液通道141靠近先端头110的一端则直接暴露在外。当内窥镜进行手术时，外界则为视野观察区域，也可理解为人体内。此时，回液通道141与视野观察区域连通。同时，回液管140与先端头110的连接方式可为但不仅限于螺栓连接、卡接、铆接、销接、焊接、一体成型方式等。其中，一体成型方式为挤压成型、注塑方式、压铸方式等。
在一实施例中，本实施例的内窥孔115为成像组件(例如微型摄像机等)对应的端口，即成像组件可通过内窥孔115获取病灶部位的图像信息。其中， 成像组件可直接安装在内窥孔115中，此时，镜头管120中则会布置成像组件所需的导线等部件。为了防护成像组件，可在内窥孔115上覆盖镜片。此外，出光孔116则为光照组件(例如：LED等冷光源)对应的端口，即光照组件通过出光孔116为病灶部位提供光照，其中，光照组件也可直接安装在出光孔116中。同样，为了防护光照组件，可在出光孔116上也覆盖有镜片。
另外，进液管130和镜头管120在第一安装槽111中排布方式有多种，比如：进液管130与镜头管120并列一起插入第一安装槽111中；或者，进液管130套设在镜头管120内，再将镜头管120插在第一安装槽111中；又或者，镜头管120套设在进液管130内，再将进液管130插在第一安装槽111中等。
请参考图2与图3，先端头110上设有与第一安装槽111隔开分布的第二安装槽112。第二安装槽112贯穿先端头110的相对两侧，这样使得第二安装槽112的两端均与外界保持相通状态。此时，当回液管140装设于第二安装槽112的槽壁上时，回液通道141与外界保持连通，使得视野观察区域中的液体从回液通道141流出、并排出。同时，在先端头110上开设第二安装槽112，并将回液管140安装在第二安装槽112中，使得回液管140的一部分嵌入先端头110中，减少插入结构100前端所占空间，以实现内窥镜小型化设计。
在一实施例中，第一安装槽111与第二安装槽112隔开设置、不相通，其两者之间具有分隔部1122，以保证视野观察区域内的液体稳定流动，不会发生串流。
示例性地，请参考图2，先端头110上设有与第二安装槽112连通的开口1121。回液管140的管侧面142至少一部分从开口1121处伸出第二安装槽112外，回液管140伸出第二安装槽112外的部分上设有与回液通道141连通的回液孔143。由此可知，当回液管140安装在第二安装槽112时，至少一部分从开口1121处伸出，而伸出的部分上开设有回液孔143。这样在使用过程中，一部分液体会从回液通道141的一端(即回液管140的管口)处流入回液通道141中；另一部分液体会从回液孔143(即回液管140的管侧面142)中流入回液通道141中，使得视野观察区域中液体能从不同的方向上流入回液通道141中，增加液体的回液范围，从而保证视野观察区域内的图像更加清晰、准确。
可选地，第二安装槽112的形状可有多种设计，比如：第二安装槽112的形状可为半圆形、半椭圆形、方形、梯形或者其他多边形状等。同时，回液管140的外形也有多种设计，只需能满足安装在第二安装槽112内，并能从开口 1121伸出即可。
在一实施例中，本实施例的回液孔143不仅限于开设在回液管140从开口1121处伸出的部分上，也可设置在回液管140的其他部分上，比如：还可设置在回液管140位于第二安装槽112内的一部分上等。
在一个实施例中，请参考图2，插入结构100包括固定件150。固定件150设置为将回液管140装设于第二安装槽112的槽壁上，如此，通过固定件150使得回液管140稳定安装第二安装槽112内，以保证液体稳定从回液通道141中排出。
请参考图2，固定件150将回液管140安装在第二安装槽112内的方式有多种，比如：固定件150为螺栓、螺钉、销钉、铆钉等零件，通过该零件直接将回液管140固定在第二安装槽112的槽壁上；或者，固定件150为卡扣结构，在安装时，将回液管140卡扣或者卡钩在第二安装槽112的槽壁上等。
示例性地，请参考图2，固定件150与第二安装槽112的槽壁之间留有安装间隙152。回液管140套设于固定件150外，并伸至安装间隙152内。固定件150上设有连接部151。连接部151贯穿回液管140连接于第二安装槽112的槽壁上，如此，在安装时，通过连接部151，将回液管140稳定固定夹持在安装间隙152内，以提高回液管140的安装稳定性。
示例性地，利用连接部151将回液管140固定在固定件150与第二安装槽112的槽壁之间的方式可为：将回液管140套设于固定件150外，使之伸至安装间隙152内；再将连接部151贯穿回液管140，使之连接在第二安装槽112的槽壁上；或者，将固定件150通过连接部151连接在第二安装槽112的槽壁上，再以模内注塑或者压铸等一体成型方式将回液管140成型固定在固定件150与第二安装槽112的槽壁之间等。
在一实施例中，固定件150通过连接部151一体式连接在第二安装槽112的槽壁上，以与第二安装槽112的槽壁之间形成有安装间隙152。回液管140以一体成型方式(压铸或者注塑等)与连接部151连接，并套设于固定件150外。如此，简化了插入结构100的成型工艺，降低了内窥镜整体制作成本。
可选地，连接部151的数量可为一个、二个、三个或者更多数量。当连接部151为多个时，多个连接部151间隔设置于固定件150上。同时，连接部151的外形可有多种，本实施例不作具体限定，只需满足连接部151稳定连接在固定件150与第二安装槽112的槽壁之间即可。
在一个实施例中，请参考图1与图2，固定件150朝向安装间隙152的一侧面与回液管140的内壁贴合。回液管140的外壁与第二安装槽112的槽壁贴合。在本实施例中，固定件150的一侧面为圆弧拱形曲面。第二安装槽112的槽壁为圆弧凹形曲面。
在一个实施例中，请参考图3，第一安装槽111的底壁上设有插槽113。插槽113与进液孔114连通。进液管130插入插槽113中，并与插槽113的槽壁密封配合。如此，在组装时，只需将进液管130插入插槽113中，即可完成进液管130与先端头110之间的装配，提升了插入结构100的组装效率。
示例性地，进液管130与插槽113密封配合应理解为：进液管130插入插槽113中时，从进液通道131中流出的液体不会从进液管130与插槽113之间渗出。其中，进液管130与插槽113的密封配合实现方式可为：进液管130的外径尺寸与插槽113的内壁尺寸保持一致，比如过盈配合等。或者，进液管130与插槽113之间设置密封橡胶圈或者涂抹密封胶水等。
在一个实施例中，请参考图1与图4，进液管130套设于镜头管120内。镜头管120插入第一安装槽111中，并与第一安装槽111的槽壁密封配合。由此可知，本实施例的进液管130位于镜头管120内，这样有利于减少插入结构100的整体体积，便于内窥镜小型化生产，提升产品的使用性能。
在一实施例中，镜头管120与第一安装槽111密封配合应理解为：镜头管120插入第一安装槽111中时，外界的液体不会从镜头管120与第一安装槽111之间渗入。其中，镜头管120与第一安装槽111的密封配合实现方式可为：镜头管120的外径尺寸与第一安装槽111的内壁尺寸保持一致，比如过盈配合等。或者，镜头管120与第一安装槽111之间设置密封橡胶圈或者涂抹密封胶水等。
在一个实施例中，请参考图3与图4，第一安装槽111的槽壁上设有第一限位部117。镜头管120上设有与第一限位部117限位配合的第二限位部121。如此，通过第一限位部117与第二限位部121配合，使得镜头管120在第一安装槽111内更加稳定，避免镜头管120在第一安装槽111中发生左右晃动。
可选地，第一限位部117为凸状结构，第二限位部121为槽或者孔状结构；或者，第一限位部117为槽或者孔状结构，第二限位部121为凸状结构。
请参考图3与图4，第一限位部117为限位凸起1171。限位凸起1171设置为与作为限位凹槽1211的第二限位部121配合。在组装过程中，镜头管120插入第一安装槽111时，将限位凹槽1211与限位凸起1171对准；推动镜头管120， 使得限位凸起1171卡入限位凹槽1211中，从而使得镜头管120稳定限位在第一安装槽111中。
请参考图3与图4，限位凸起1171为分隔部1122沿着朝第一安装槽111内方向凸起而形成。限位凹槽1211为镜头管120的一侧面朝内凹陷而形成。
在一个实施例中，请参考图2，先端头110包括端面部118及设置于端面部118的筒身部119。第一安装槽111与第二安装槽112并列间隔设置于筒身部119上。进液孔114、内窥孔115和出光孔116均设置于端面部118上。
请参考图3，镜头管120插入第一安装槽111时，镜头管120的端面贴合在端面部118朝向第一安装槽111的一侧面上。
在一个实施例中，请参考图2，进液孔114与回液通道141分别位于内窥孔115的相对两侧。当液体从进液孔114中流入，并从回液通道141中流出时，期间会流经内窥孔115，这样对内窥孔115处具有一定的冲洗作用，保证内窥孔115处具有良好的视野，以保证获取的图像信息更加清晰、可靠。
在一个实施例中，请参考图2，出光孔116为两个以上。至少两个出光孔116分别位于内窥孔115的相对两侧，以保证内窥孔115两侧均具有光照，使得内窥镜获取更加清晰图像。
在其他实施例中，出光孔116的数量可为多个，多个出光孔116可沿着内窥孔115的外围间隔分布。
在一实施例中，内窥孔115和出光孔116的形状有多种设计，比如：内窥孔115和出光孔116的形状可设计成圆形、方形、椭圆形或者其他多边形等。对此，本实施例不作具体限定，只需满足出光和摄像功能均可。
在一个实施例中，请参考图2，先端头110远离回液管140的一侧面为圆弧拱形面，这样一来缩小先端头110的整体体积；二来可保证先端头110的顶部为圆弧光滑状态，避免手术中对组织造成碰伤风险。
在一个实施例中，请参考图1与图5，一种内窥镜，内窥镜包括座体200与以上任意一实施例中的插入结构100。座体200设有第一流道210、第二流道220、第三流道230和第四流道240。第一流道210与第二流道220连通。第三流道230与第四流道240连通。进液管130与回液管140均设置于座体200上。进液通道131与第二流道220连通。回液通道141与第三流道230连通。
上述的内窥镜，采用以上的插入结构100，在内窥镜制作过程中，将镜头管120与进液管130同时插入第一安装槽111中，使得出光孔116与内窥孔115均 与镜头管120连通；同时也使得进液孔114与进液管130中的进液通道131连通。将回液管140安装在先端头110上，使得回液通道141与外界(比如视野观察区域内)连通，以构成一个同时集成有镜头部分和进回液部分的内窥镜。本内窥镜在制作过程中，巧妙利用先端头110的多腔式结构，使得自身集成进、回液功能，无需额外搭配不同的镜鞘结构，有效降低整体的制作难度，使得整体制作成本得到降低。此外，利用先端头110结构，也提升了内窥镜的装配效率。另外，在使用过程中，向进液通道131中通液体，使得液体通过进液孔114中流至视野观察区域内。由于回液通道141直接与外界连通，因此，视野观察区域中的液体可直接流入回液通道141中予以排出。如此，通过本先端头110结构，使得手术中的进回液操作变得更加便利，有效提升内窥镜产品的使用性能。
可选地，第二流道220与第三流道230在座体200内呈并列间隔分布。
示例性地，请参考图5，座体200上还设有操作流道250，操作流道250与第三流道230连通，以便操作者将器械从操作流道250中依次伸入至第三流道230和回液通道141中。
以上所述实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。
在本申请的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺时针”、“逆时针”、“轴向”、“径向”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。在本申请的描述中，“多个”的含义是至少两个，例如两个，三个等，除非另有明确具体的限定。
在本申请中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中 间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系，除非另有明确的限定。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请中的具体含义。
在本申请中，除非另有明确的规定和限定，第一特征在第二特征“上”或“下”可以是第一和第二特征直接接触，或第一和第二特征通过中间媒介间接接触。而且，第一特征在第二特征“之上”、“上方”和“上面”可是第一特征在第二特征正上方或斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”可以是第一特征在第二特征正下方或斜下方，或仅仅表示第一特征水平高度小于第二特征。
需要说明的是，当元件被称为“固定于”或“设置于”另一个元件，它可以直接在另一个元件上或者也可以存在居中的元件。当一个元件被认为是“连接”另一个元件，它可以是直接连接到另一个元件或者可能同时存在居中元件。本文所使用的术语“垂直的”、“水平的”、“上”、“下”、“左”、“右”以及类似的表述只是为了说明的目的，并不表示是唯一的实施方式。

Claims (10)

  1. 一种插入结构(100)，包括：
    先端头(110)，所述先端头(110)上设有第一安装槽(111)，所述先端头(110)背向所述第一安装槽(111)槽口的一侧面上间隔设有进液孔(114)、出光孔(116)和内窥孔(115)；
    镜头管(120)与进液管(130)，所述镜头管(120)与所述进液管(130)分别插入所述第一安装槽(111)中，所述进液管(130)内设有进液通道(131)，所述进液通道(131)与所述进液孔(114)连通，所述出光孔(116)与所述内窥孔(115)分别与所述镜头管(120)内连通；
    回液管(140)，所述回液管(140)内设有回液通道(141)，所述回液管(140)一端连接于所述先端头(110)，且所述回液通道(141)设置为与外界连通。
  2. 根据权利要求1所述的插入结构(100)，其中，所述先端头(110)上设有与所述第一安装槽(111)隔开分布的第二安装槽(112)，所述第二安装槽(112)贯穿所述先端头(110)的相对两侧，所述回液管(140)装设于所述第二安装槽(112)的槽壁上。
  3. 根据权利要求2所述的插入结构(100)，其中，所述先端头(110)上还设有与所述第二安装槽(112)连通的开口(1121)，所述回液管(140)的管侧面至少一部分从所述开口(1121)处伸出所述第二安装槽(112)外，所述回液管(140)伸出所述第二安装槽(112)外的部分上设有与所述回液通道(141)连通的回液孔(143)。
  4. 根据权利要求2所述的插入结构(100)，还包括固定件(150)，所述固定件(150)设置为将所述回液管(140)装设于所述第二安装槽(112)的槽壁上。
  5. 根据权利要求4所述的插入结构(100)，其中，所述固定件(150)与所述第二安装槽(112)的槽壁之间留有安装间隙(152)，所述回液管(140)套设于所述固定件(150)外，并伸至所述安装间隙(152)内，所述固定件(150)上设有连接部(151)，所述连接部(151)设置为贯穿所述回液管(140)以连接于所述第二安装槽(112)的槽壁上。
  6. 根据权利要求1所述的插入结构(100)，其中，所述第一安装槽(111)的底壁上设有插槽(113)，所述插槽(113)与所述进液孔(114)连通，所述进液管(130)插入所述插槽(113)中，并与所述插槽(113)的槽壁密封配合。
  7. 根据权利要求6所述的插入结构(100)，其中，所述进液管(130)套 设于所述镜头管(120)内，所述镜头管(120)插入所述第一安装槽(111)中，并与所述第一安装槽(111)的槽壁密封配合。
  8. 根据权利要求7所述的插入结构(100)，其中，所述第一安装槽(111)的槽壁上设有第一限位部(117)，所述镜头管(120)上设有与所述第一限位部(117)限位配合的第二限位部(121)。
  9. 根据权利要求1-8任意一项所述的插入结构(100)，还包括以下特征中的至少之一：
    所述先端头(110)包括端面部(118)及设置于所述端面部(118)的筒身部(119)，所述第一安装槽(111)与所述第二安装槽(112)并列间隔设置于所述筒身部(119)上，所述进液孔(114)、所述内窥孔(115)和所述出光孔(116)分别设置于所述端面部(118)上；
    所述进液孔(114)与所述回液通道(141)分别位于所述内窥孔(115)的相对两侧。
  10. 一种内窥镜，包括座体(200)与权利要求1-9任意一项所述的插入结构(100)，所述座体(200)上设有第一流道(210)、第二流道(220)、第三流道(230)和第四流道(240)，所述第一流道(210)与所述第二流道(220)连通，所述第三流道(230)与所述第四流道(240)连通，所述插入结构(100)的所述进液管(130)与所述回液管(140)分别设置于所述座体(200)上，所述进液管(130)内的所述进液通道(131)与所述第二流道(220)连通，所述回液管(140)内的所述回液通道(141)与所述第三流道(230)连通。
PCT/CN2021/094800 2021-04-07 2021-05-20 插入结构及内窥镜 WO2022213452A1 (zh)

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