WO2020259177A1 - 内窥镜抬钳器、内窥镜头端和十二指肠镜系统 - Google Patents

内窥镜抬钳器、内窥镜头端和十二指肠镜系统 Download PDF

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Publication number
WO2020259177A1
WO2020259177A1 PCT/CN2020/092221 CN2020092221W WO2020259177A1 WO 2020259177 A1 WO2020259177 A1 WO 2020259177A1 CN 2020092221 W CN2020092221 W CN 2020092221W WO 2020259177 A1 WO2020259177 A1 WO 2020259177A1
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WO
WIPO (PCT)
Prior art keywords
endoscope
lifter
guide
positioning
mounting
Prior art date
Application number
PCT/CN2020/092221
Other languages
English (en)
French (fr)
Inventor
荆峰
徐科端
吴拱安
Original Assignee
深圳开立生物医疗科技股份有限公司
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Application filed by 深圳开立生物医疗科技股份有限公司 filed Critical 深圳开立生物医疗科技股份有限公司
Priority to US17/622,735 priority Critical patent/US20220160210A1/en
Publication of WO2020259177A1 publication Critical patent/WO2020259177A1/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
    • A61B1/00064—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
    • A61B1/00098—Deflecting means for inserted 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
    • A61B1/00147—Holding or positioning 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
    • A61B1/012—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
    • A61B1/018—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 for receiving instruments
    • 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
    • A61B1/12—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 cooling or rinsing arrangements
    • A61B1/126—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 cooling or rinsing arrangements provided with means for cleaning in-use
    • 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
    • A61B1/273—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 for the upper alimentary canal, e.g. oesophagoscopes, gastroscopes
    • 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
    • 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
    • A61B1/005—Flexible endoscopes
    • A61B1/0051—Flexible endoscopes with controlled bending of insertion part
    • A61B1/0052—Constructional details of control elements, e.g. handles
    • 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
    • A61B1/04—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
    • A61B1/05—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 characterised by the image sensor, e.g. camera, being in the distal end portion
    • 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

Definitions

  • the present invention relates to the technical field of medical equipment, in particular to an endoscope forceps lifter, an endoscope lens end and a duodenoscope system.
  • Cancer is a general term for a large malignant tumor. Cancer cells are characterized by unlimited and endless proliferation, which makes the nutrients in the patient's body be consumed in large amounts. my country is a major country with digestive tract diseases, and has long been trapped in the dilemma of low detection rate of digestive tract diseases and high mortality. At present, the most effective way to fight cancer is recognized internationally as early detection, early diagnosis and early treatment. Early cancer diagnosis is a diagnosis and treatment method specifically for early cancer patients. Endoscopic diagnosis is the most representative early diagnosis of gastrointestinal cancer. It has the advantages of observing and taking pictures at the same time, and is widely used in clinical practice.
  • Duodenoscopy refers to the use of duodenoscope to perform duodenoscopy. It can be used to diagnose diseases of the duodenum, liver, gallbladder, or pancreas, and can also be used for adjuvant treatment of the digestive system.
  • a duodenoscope for the treatment of the digestive system or pancreaticobiliary system, in addition to the endoscopy for the diagnosis and treatment of the digestive tract, bile duct or pancreatic duct, there are also balloons or holding treatment instruments that are present in the Treatment of gallstones in the common bile duct, etc., is recovered.
  • ERCP is endoscopic retrograde cholangiopancreatography.
  • the duodenoscope is inserted into the descending part of the duodenum, and the duodenal papilla is found.
  • a catheter is inserted from the instrument channel to the nipple opening.
  • X-rays are taken after injecting the contrast agent to show the pancreas.
  • Bile duct and then perform surgical operations such as incision and stone recovery on the displayed pancreaticobiliary duct.
  • the guide wire is inserted into the treatment device, the front part of the guide wire is kept inserted into the nipple, and the subsequent treatment device is inserted into the nipple through the guide wire.
  • the end of the endoscope lens includes a head end seat and a forceps lifter, and the forceps lifter is located in the receiving space of the head end seat.
  • the extension angle of the catheter, guide wire or other treatment instruments can be controlled by the lifting of the forceps lifter, and then the catheter or other treatment instruments can be inserted into the nipple to reach the pancreatic duct or bile duct with the bending and rotation of the mirror body.
  • the guide wire normally extends from the end of the endoscope lens through the instrument channel;
  • the extended position of the guide wire is to the right. This is because when the end of the endoscope lens penetrates into the human body, it is blocked by the internal organs of the left human body.
  • the guide wire is extended to the right, the guide wire is in the right-side extended state;
  • the extended position of the guide wire is leftward. This is because when the end of the endoscope lens penetrates into the human body, it is blocked by the internal organs from the right side. As a result, the position of the guide wire is leftward when it is extended. At this time, the guide wire is in the left-side extended state.
  • the extended state of the guide wire When the extended state of the guide wire is a biased extended state, it cannot stick to the guide groove of the pliers lifter and continue to extend into the positioning bayonet at the top of the pliers lifter, but deviate from the pliers lifter and extend out of the containing space.
  • the guide wire cannot be positioned before and after the forceps lifter is lifted, so that the purpose of fixing the guide wire cannot be achieved. Therefore, other treatment instruments cannot be guided to the predetermined position by the guide wire after extending from the instrument channel, and surgery cannot be performed.
  • the extension state of the catheter or other treatment device is the same as the guide wire.
  • the purpose of the present invention is to provide an endoscope forceps lifter, an endoscope lens end, and a duodenoscope system, which can align guide wires, catheters or other treatment instruments that extend in a biased direction.
  • the positioned part is effectively and accurately clamped and fixed, so as to prevent the positioned part from falling out of the nipple and moving into the nipple.
  • An endoscope forceps lifter the bottom of the endoscope forceps lifter communicates with an instrument channel and is provided with a hinge part for hinged connection with an end seat of an endoscope lens;
  • the top of the endoscope forceps lifter is provided with a positioning groove adapted to the positioned piece
  • the side of the endoscope forceps lifter is provided with a cutting edge and a guiding surface, and the guiding surface is located between the positioning groove and the cutting edge;
  • the cutting edge can move against the inner surface of the head end seat to guide the positioned member in the first deflection extended state to the guide surface
  • the guide surface can guide the positioned part into the positioning groove, and the positioning groove can cooperate with the abutting fixing part to clamp and fix the positioned part.
  • the outer notch of the positioning groove is a positioning bayonet located at the top end of the endoscope forceps lifter
  • the positioning bayonet and the instrument channel are provided with guide grooves respectively communicating with the two. Before the endoscope forceps lifter is lifted, the positioned part can be guided to the position through the guide grooves. Said positioning bayonet and laterally limited.
  • the positioning groove is a bar-shaped groove structure, and one side of the positioning groove intersects with the guiding surface to form a first transition edge or transition surface. The other side of the groove intersects the guide groove to form a second transition edge.
  • An endoscope lens end includes a head end seat and a forceps lifter, which is the endoscope forceps lifter as described above.
  • the head end seat includes a first mounting portion, a second mounting portion, and a receiving space for receiving the forceps lifter, and the bottom of the receiving space is used for communicating with the
  • the two sides of the containing space are respectively the first inner side surface of the first mounting portion and the second inner side surface of the second mounting portion, and the front surface of the first mounting portion is connected to the first
  • the working surface intersecting the inner side surface for installing functional devices the bottom of the working surface near the containing space is provided with a convex wall protruding outside the working surface, and the inner side surface of the convex wall is connected to the
  • the first inner sides are coplanar and are both inner sides of the head end seat;
  • the shearing edge can move against the inner surface of the protruding wall to guide the positioned member in the first deflection extended state to the guide surface .
  • the outer edge of the convex wall includes an inclined edge with a gradually decreasing protrusion height, and the portion with the highest protrusion height of the inclined edge has the lowest protrusion height.
  • the part is closer to the bottom of the containing space.
  • the working surface is provided with a first mounting surface, a second mounting surface and a third mounting surface in sequence along the axial direction, wherein:
  • the radially outer side of the bottom of the receiving space is the first mounting surface
  • the radially outer side of the top of the receiving space is the third mounting surface
  • the second mounting surface is an inclined surface located between the first mounting surface and the third mounting surface
  • the distance between the first mounting surface and the center plane of the endoscope lens end is smaller than the distance between the third mounting surface and the center plane of the endoscope lens end seat, and the protruding wall is provided on the first mounting surface. Surface.
  • the functional device includes:
  • a nozzle of a water-air system where the nozzle is installed in the first mounting surface
  • An objective lens of an imaging system the objective lens is installed in the second mounting surface
  • the lens of the illumination system is installed in the third mounting surface.
  • the angle between the inner side surface of the head end seat and the guide surface is greater than 90 degrees and less than 180 degrees.
  • the abutting fixing member is located at the bottom of the accommodating space, and the abutting surface of the abutting fixing member includes a first abutting surface and a second abutting surface;
  • the first abutting surface is used to cooperate with the positioning groove to clamp and fix the positioned part
  • One side of the endoscope forceps lifter is provided with the cutting edge, and the other side is provided with a side positioning part. After the endoscope forceps lifter is lifted, the side positioning part can cooperate with the The second abutting surface clamps and fixes the positioned member in the second deflection extended state.
  • the second abutment surface and the second inner side surface constitute a clamping groove for accommodating the side positioning portion, and when the positioned part is in the second deflection direction In the extended state, after the pliers lifter is raised, the positioned part can be abutted and fixed in the clamping groove by the side positioning portion.
  • the included angle between the first abutting surface and the central axis of the endoscope lens end is greater than zero.
  • the second abutting surface is a flat surface, a curved surface or a stepped surface.
  • a duodenoscope system is provided with an endoscope lens end as described above.
  • the endoscopic forceps lifter, the endoscope lens end and the duodenoscope system provided by the present invention are used when the guide wire, catheter or other treatment instrument is deflected and extended by the positioning member. It can be adjusted back into the positioning groove to clamp and fix it effectively and accurately, so as to prevent the positioned part from protruding out of the nipple and moving into the nipple, so that the operation can proceed smoothly.
  • Figure 1 is a schematic diagram of three different trajectories of the guide wire in the prior art when it is normally extended, extended to the right and extended to the left;
  • Figure 2 is a schematic structural diagram of the pliers lifter provided in the first specific embodiment of the present invention.
  • FIG. 3 is a schematic structural diagram of the abutting fixing member provided in the second specific embodiment of the present invention.
  • FIG. 4 is a schematic diagram of the positional relationship between the pliers lifter provided in the second embodiment of the present invention after the pliers is lifted and the abutting fixing member;
  • FIG. 5 is a schematic diagram of the structure of the endoscope lens end provided in the second embodiment of the present invention.
  • FIG. 6 is a schematic structural view of the guide wire provided in the second embodiment of the present invention when it is normally extended and is positioned by the positioning bayonet of the forceps lifter;
  • FIG. 7 is a schematic diagram of the structure of the rear forceps when the guide wire is extended to the right and left to lift the forceps according to the second embodiment of the present invention.
  • Fig. 8 is an exploded schematic view of the movement track of the guide wire when the guide wire protruding to the right is guided into the positioning bayonet of the forceps lifter through the guide surface of the forceps lifter in the second embodiment of the present invention. ;
  • Figure 9 is an exploded schematic view of the guide wire movement direction in Figure 8.
  • Figure 10 is another angle view of Figure 9;
  • FIG. 11 is a schematic diagram of the included angle between the plane of the guide surface of the forceps lifter in FIG. 10 and the axial direction of the endoscope lens end;
  • Figure 12 is another angle view of Figure 11;
  • FIG. 13 is a schematic structural diagram of the guide wire provided in the second specific embodiment of the present invention after it is extended to the left and is clamped and positioned by the forceps lifter and the abutting fixing member;
  • Fig. 14 is a schematic structural diagram of a duodenoscope system provided by the third embodiment of the present invention.
  • FIG. 2 is a schematic structural diagram of the pliers lifter provided in the first specific embodiment of the present invention.
  • the first specific embodiment of the present invention provides an endoscope forceps lifter.
  • the bottom of the endoscope forceps lifter communicates with the instrument channel and is provided with a hinge part for hinged connection with the endoscope lens end base 3;
  • the top of the endoscope forceps lifter is provided with a positioning groove 10 adapted to the positioned part;
  • the side of the endoscope forceps lifter is provided with a cutting edge 11 and a guiding surface 12, and the guiding surface 12 is located between the positioning groove 10 and the cutting edge 11.
  • the cutting edge 11 can move against the inner surface of the head end seat 3.
  • the guide surface 12 can guide the positioned part into the positioning groove 10; finally, the positioning groove 10 of the endoscope forceps lifter Cooperate with the abutting fixing member 2 to clamp and fix the positioned member.
  • the endoscope forceps lifter provided by the first embodiment of the present invention can be adjusted back into the positioning groove 10 when the guide wire, catheter, or other treatment instrument is deflected out of the positioning member. Effectively and accurately clamp and fix, achieve the purpose of preventing the positioned part from protruding out of the nipple and moving into the nipple, so that the operation can proceed smoothly.
  • the outer notch of the positioning groove 10 is a positioning bayonet 100 located at the top end of the endoscope forceps lifter; Connected guide groove 14.
  • the positioned part Before lifting, the positioned part can be guided into the positioning bayonet 100 through the guide groove 14 and laterally limited; in the process of lifting the clamp, the guide surface 12 can guide the positioned part into the positioning groove 10 and the positioning bayonet 100 Positioning.
  • the positioning groove 10 is a strip-shaped groove structure, one side of the positioning groove 10 intersects the guide surface 12 to form a first transition edge or transition surface, and the other side of the positioning groove 10 The intersection with the guide groove 14 forms a second transition edge.
  • Figure 3 is a schematic diagram of the structure of the abutment fixing member provided in the second embodiment of the present invention
  • Figure 4 is the second embodiment of the present invention after lifting the pliers and abutting
  • Fig. 5 is a schematic diagram of the structure of the endoscope lens end provided in the second embodiment of the present invention
  • Fig. 6 is the guide wire provided in the second embodiment of the present invention normally extending and being lifted
  • Fig. 7 is a schematic diagram of the structure when the guide wire is extended to the right and left to the rear of the pliers when the pliers is lifted;
  • the second embodiment of the invention provides an exploded schematic diagram of the movement track of the guide wire when the guide wire protruding to the right is guided into the positioning bayonet of the forceps lifter through the guide surface of the forceps lifter during the lifting process of the forceps lifter;
  • Fig. 8 is an exploded schematic view of the direction of movement of the guide wire;
  • Fig. 10 is another angle view of Fig. 9;
  • Fig. 11 is a schematic view of the angle between the plane of the guide surface of the forceps lifter in Fig. 10 and the axial direction of the endoscope lens end;
  • Fig. 12 is another angle view of Fig. 11;
  • Fig. 13 is a schematic structural diagram of the guide wire provided in the second embodiment of the present invention when it is extended to the left and is clamped and positioned by the forceps lifter and the abutting fixing member.
  • the second specific embodiment of the present invention provides an endoscope lens end.
  • the endoscope lens end includes a head end seat 3 and a forceps lifter 1, which is an endoscope forceps lifter as provided in the first specific embodiment of the present invention.
  • the head end seat 3 in the endoscope lens end includes a first mounting portion 31, a second mounting portion 32 and a receiving space for accommodating the forceps lifter 1.
  • the bottom of the accommodating space is used to communicate with the instrument channel, and the two sides of the accommodating space are the first inner side surface of the first mounting portion 31 and the second inner side surface of the second mounting portion 32 respectively.
  • the front surface of the first mounting portion 31 is a working surface 311 that intersects the first inner side surface.
  • the working surface 311 is used for installing functional devices.
  • the bottom of the working surface 311 near the receiving space is provided with a convex wall 310 protruding outside the working surface 311 ,
  • the inner surface of the protruding wall 310 is coplanar with the first inner surface and both are the inner surfaces of the head end seat 3.
  • the positioned piece When the positioned piece protrudes from the instrument channel and protrudes to the right at the bottom of the containing space, it will be attached to the first inner surface of the first mounting portion 31. Since the convex wall 310 is provided on the first inner surface, and the convex wall 310 increases the distance that the first inner surface of the first mounting portion 31 extends outward, it can guide and straighten the positioned part. It is beneficial to prevent the positioned piece from bending out of the first mounting portion 31 and deviating from the central axis of the end seat of the endoscope lens.
  • the shearing edge 11 can move to the position of the positioned part protruding to the right against the first inner surface of the first mounting portion 31 and the inner surface of the raised wall 310, and The positioning member is moved to the guide surface 12 through the cutting edge 11, and then the positioning member is guided to the positioning groove 10 and the positioning bayonet 100 at the top of the pliers lifter 1 through the guide surface 12. Position the positioned part through the positioning bayonet 100 (ie lateral limit). When the pliers lifter 1 is lifted to the limit position, pass through the positioning groove 10 of the pliers lifter 1 and the abutment surface 20 of the fixed part 2 It can clamp and fix the positioned part.
  • the outer edge of the convex wall 310 includes an inclined edge 3100 whose convex height is gradually reduced.
  • the portion of the inclined edge 3100 with the highest convex height is relative to its convex height.
  • the lowest part is closer to the bottom of the containment space.
  • the forceps lifter 1 is lifted, and the cutting edge 11 is attached to the first inner surface of the first mounting part 31 and the convex
  • the inner side surface of the lifting wall 310 moves to the position where the positioned part protruding to the right is located; then, with the lifting of the clamp lifter 1 and the movement of the cutting edge 11, the positioned part can be moved to the guide surface by the cutting edge 11 12, and at this time, with the lifting of the pliers lifting device 1 and the movement of the cutting edge 11, the inclined edge 3100 of the protruding wall 310 can gradually straighten the piece to be positioned.
  • the straightening process can be seen in the moving track of the guide wire shown by the arrow in Figure 8.
  • the arrow t1 means that the guide wire is pressed against the abutment fixing member 2 during the lifting process of the forceps lifting device 1; the arrow t2 means that the guide wire
  • the wire is guided by the shearing edge 11 and the guiding surface 12 on the right side of the pliers lifter, and is guided into the positioning bayonet 100.
  • a first mounting surface, a second mounting surface, and a third mounting surface are sequentially arranged along the axial direction.
  • the first mounting surface is located in the radial direction of the bottom of the receiving space. Outside; the third mounting surface is located on the radially outer side of the top of the containing space; the second mounting surface is an inclined surface located between the first mounting surface and the third mounting surface.
  • the distance from the center plane of the endoscope lens end to the first mounting surface is smaller than the distance from the center plane of the endoscope lens end to the third mounting surface.
  • the raised wall 310 is disposed on the first mounting surface and the intersection of the first mounting surface and the second mounting surface.
  • the functional devices installed in the working surface 311 of the first installation part 31 include the nozzle 312 of the water and air system, the objective lens 313 of the imaging system, and the lens 314 of the illumination system.
  • the nozzle 312 is installed in the first installation surface
  • the objective lens 313 is installed in the second installation surface
  • the lens 314 is installed in the third installation surface.
  • the included angle between the first inner side surface (that is, the inner side surface of the first mounting portion 31 in the head end seat 3) and the guide surface 12 is greater than 90 degrees and less than 180 degrees. Since the first inner side surface is parallel to the center axis of the endoscope lens end, the angle between the guide surface 12 on the forceps lifter 1 and the center axis of the endoscope lens end is equal to the above-mentioned first inner side surface and the guide surface 12 The included angle. For details, see the dotted line and the included angle R in FIG. 11.
  • the positioned piece extends from the right side of the abutting fixing member 2 and the right side of the pliers lifter 1 (that is, extends to the right), and the pliers lifter 1 is lifted by a small angle , Viewed from the protruding end of the positioned piece, the first inner surface of the head end seat 3 and the guide surface 12 on the forceps lifter 1 form a V-shaped groove to limit the guide wire.
  • the abutting fixing member 2 is located at the bottom of the accommodating space, and the abutting surface of the abutting fixing member 2 includes a first abutting surface 20 and a second abutting surface.
  • the first abutting surface 20 is used to cooperate with the positioning groove 10 to clamp and fix the positioned part; the right side of the endoscope lifter is provided with a cutting edge 11, and the left side of the endoscope lifter is provided with The side positioning portion 13, after the endoscope forceps lifter is raised, the side positioning portion 13 can cooperate with the second abutting surface (that is, the left abutting surface of the fixing member 2) to protrude leftward (that is, "In the second deflection extended state") the positioned part is clamped and fixed.
  • the second abutment surface on the abutment fixing member 2 and the second inner surface on the head end seat 3 constitute a clamping groove for accommodating the side positioning portion 13 of the clamp lifter 1.
  • the positioned part when the positioned part extends from the left side of the abutting fixing part 2 and the left side of the clamp lifter 1, after the clamp lifter 1 is lifted, the positioned part can be abutted by the side positioning portion 13 It is fixed in the clamping groove to form a two-point clamping.
  • the angle between the first abutting surface 20 on the abutting fixing member 2 and the center axis of the endoscope lens end is greater than zero.
  • FIG. 14 is a schematic structural diagram of a duodenoscope system according to a third embodiment of the present invention.
  • the third specific embodiment of the present invention provides a duodenoscope system in which the endoscope lens body is provided with the endoscope lens end as provided in the first specific embodiment of the present invention.
  • the duodenoscope system includes an endoscope body part, a light source part 100 and a host part 200; wherein the endoscope body part usually includes an insertion part 300 for inserting into a body cavity to be tested, and one end of the insertion part 300 Endoscope lens end 302, the other end is the operating end 301, the endoscope lens end 302 is provided with a forceps lifter, the operating end 301 is provided with a lever for controlling the lifting of the forceps lifter; the light source part 100 provides the endoscope For white light illumination and special light illumination, the host part 200 provides signal control of the endoscope, image processing of the endoscope body, etc., wherein the host part 200 is connected to the display to realize the display of the endoscopic image.
  • the nozzle 312 of the water vapor system, the objective lens 313 of the imaging system, and the lens 314 of the illumination system are also provided on the head end seat of the endoscope of the aforementioned endoscope lens end 302.
  • the nozzle 312 sprays fluid such as water or air onto the outer surface of the objective lens 313 to clean it;
  • the inner side of the objective lens of the imaging system is equipped with the imaging element CCD of the observation optical system, which is used to capture the image information of the insertion part.
  • the lens 314 is connected with an optical fiber as a light transmission path.
  • the end cover of the endoscope lens is provided with a head end cap, and the head end cap and the head end base are detachably connected.
  • the end of the endoscope lens may also be configured to be bilaterally symmetrical with the end of the endoscope provided in the second specific embodiment of the present invention, and its function and effect remain unchanged.
  • the positioned member when the positioned member is in the first deflection extended state, it means that the positioned member is extended to the left, and the positioned member is in the second deviated extended state means the positioned member is extended to the right.
  • this article will not repeat it.

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Abstract

一种内窥镜抬钳器（1）、内窥镜头端（302）和十二指肠镜系统。该内窥镜抬钳器（1）的底部连通器械通道且设置有用于与内窥镜头端座（3）铰接的铰接部；内窥镜抬钳器（1）的顶部设置有与被定位件适配的定位槽（10）；内窥镜抬钳器（1）的侧边设置有剪切棱（11）和引导面（12），引导面（12）位于定位槽（10）和剪切棱（11）之间；在内窥镜抬钳器（1）的抬升过程中，剪切棱（11）能够贴着头端座（3）的内侧面移动以将处于第一偏向伸出状态的被定位件引导至引导面（12）上，引导面（12）能够将被定位件引导至定位槽（10）内，定位槽（10）能够配合抵接固定件（2）对被定位件进行夹持固定，达到避免被定位件脱出乳头和向乳头内部移动、令手术顺利进行的目的。

Description

内窥镜抬钳器、内窥镜头端和十二指肠镜系统
本申请要求于2019年6月24日提交中国专利局、申请号为201910550770.6、发明名称为“内窥镜抬钳器、内窥镜头端和十二指肠镜系统”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及医疗器械技术领域，特别涉及一种内窥镜抬钳器、一种内窥镜头端和一种十二指肠镜系统。
背景技术
癌症是一大恶性肿瘤的统称，癌细胞的特点是无限制、无止境地增生，使得患者体内的营养物质被大量消耗。我国是消化道疾病大国，且长期陷于消化道疾病发现率低而死亡率高的困境中。目前，国际公认的对抗癌症的最有效方式为早发现、早诊断、早治疗。癌症早期诊断是一种专门针对癌症早期患者的诊疗方法，内窥镜诊断是消化道癌症早期诊断最具有代表性的一种，其优点是一面观察、一面拍照，临床上应用广泛。
十二指肠镜术是指利用十二指肠镜进行十二指肠镜检查的方法，可用于诊断十二指肠、肝、胆或胰腺疾病，也可以用于消化系统的辅助治疗，在利用十二指肠镜进行消化系统或胰胆管系统的处置时，除了利用内窥镜进行消化道、胆管或胰管的造影诊断处置之外，还有通过球囊或把持处置器械等对存在于总胆管等中的胆结石进行回收的治疗处置等。
ERCP为经内镜逆行性胰胆管造影术。ERCP手术过程中，通过十二指肠镜插至十二指肠降部，找到十二指肠乳头，由器械通道内插入导管至乳头开口部，注入造影剂后X射线摄片，以显示胰胆管，而后对显示的胰胆管进行切开、结石回收等手术操作。
在ERCP手术过程中需要更换处置器械时，将导丝插入到处置器械内部，导丝前段保持插入乳头的状态，通过导丝引导后续处置器械插入乳头。
其中，内窥镜头端部包括头端座和抬钳器，抬钳器位于头端座的收容空间中。通过抬钳器的升降能够控制导管、导丝或其它处置器械伸出的角度，再配合镜身的弯曲、旋转等操作令导管或其它处置器械插入乳头到达胰管或胆管。
如图1中所示，当导丝由器械通道伸入内窥镜头端部的收容空间中时，其 伸出位置是不固定的：
若导丝伸出状态为粗线a所示，则导丝正常经过器械通道从内窥镜头端部伸出；
若导丝伸出状态为粗线b所示，则导丝的伸出位置为偏右位置，这是因为，当内窥镜头端部深入人体内，由于受到来自左边人体内器官的阻挡，导致导丝伸出时位置偏右，此时，导丝处于右侧偏向伸出状态；
若导丝伸出状态为粗线c所示，则导丝的伸出位置为偏左位置，这是因为，当内窥镜头端部深入人体内，由于受到来自右边的人体内器官的阻挡，导致导丝伸出时位置偏左，此时，导丝处于左侧偏向伸出状态。
当导丝伸出状态为偏向伸出状态时，无法贴着抬钳器引导槽继续伸出至抬钳器顶端的定位卡口内，而是偏离抬钳器且伸出收容空间外，这种情况下，抬钳器抬升前后均无法对导丝进行定位，从而无法实现固定导丝的目的，从而其它处置器械由器械通道伸出后也无法被导丝引导至预定位置，无法进行手术。
同理地，处置过程中，导管或其它处置器械的伸出状态与导丝相同。
因此，现有技术中，如何在导丝、导管或其它处置器械等被定位件偏向伸出时依然能够被有效精准地夹持固定，以达到避免被定位件脱出乳头和向乳头内部移动的目的，是目前本领域技术人员亟待解决的技术问题。
发明内容
有鉴于此，本发明的目的在于提供一种内窥镜抬钳器、一种内窥镜头端和一种十二指肠镜系统，能够对偏向伸出的导丝、导管或其它处置器械等被定位件进行被有效精准地夹持固定，以达到避免被定位件脱出乳头和向乳头内部移动的目的。
为实现上述目的，本发明提供如下技术方案：
一种内窥镜抬钳器，所述内窥镜抬钳器的底部连通器械通道且设置有用于与内窥镜头端座铰接的铰接部；
所述内窥镜抬钳器的顶部设置有与被定位件适配的定位槽；
所述内窥镜抬钳器的侧边设置有剪切棱和引导面，所述引导面位于所述定位槽和所述剪切棱之间；
在所述内窥镜抬钳器的抬升过程中，所述剪切棱能够贴着头端座的内侧面 移动以将处于第一偏向伸出状态的所述被定位件引导至所述引导面上，所述引导面能够将所述被定位件引导至所述定位槽内，所述定位槽能够配合抵接固定件对所述被定位件进行夹持固定。
优选地，在上述内窥镜抬钳器中，所述定位槽的外槽口为位于所述内窥镜抬钳器的顶端的定位卡口；
所述定位卡口和所述器械通道之间设置有与两者分别连通的引导槽，所述内窥镜抬钳器抬起前，所述被定位件能够通过所述引导槽被引导至所述定位卡口内且被侧向限位。
优选地，在上述内窥镜抬钳器中，所述定位槽为条形卡槽结构，所述定位槽的一侧与所述引导面相交构成第一过渡棱边或过渡面，所述定位槽的另一侧与所述引导槽相交构成第二过渡棱边。
一种内窥镜头端，包括头端座和抬钳器，所述抬钳器为如上文中所述的内窥镜抬钳器。
优选地，在上述内窥镜头端中，所述头端座包括第一安装部、第二安装部和用于容纳所述抬钳器的收容空间，所述收容空间的底部用于连通所述器械通道，所述收容空间的两侧分别为所述第一安装部的第一内侧面和所述第二安装部的第二内侧面，所述第一安装部的正面为与所述第一内侧面相交的用于安装功能器件的工作面，所述工作面上靠近所述收容空间的底部设置有凸出所述工作面外的凸起壁，所述凸起壁的内侧面与所述第一内侧面共面且均为所述头端座的内侧面；
所述抬钳器抬升过程中，所述剪切棱能够贴着所述凸起壁的内侧面移动以将处于所述第一偏向伸出状态的所述被定位件引导至所述引导面上。
优选地，在上述内窥镜头端中，所述凸起壁的外棱边包括凸起高度逐渐减小的倾斜棱边，所述倾斜棱边的凸起高度最高的部分相对其凸起高度最低的部分更加靠近所述收容空间的底部。
优选地，在上述内窥镜头端中，所述工作面中，沿轴向依次设置有第一安装面、第二安装面和第三安装面，其中：
所述收容空间的底部的径向外侧为所述第一安装面；
所述收容空间的顶部的径向外侧为所述第三安装面；
所述第二安装面为位于所述第一安装面和所述第三安装面之间的倾斜面；
所述第一安装面和所述内窥镜头端的中心平面的距离小于所述第三安装面和所述内窥镜头端座的中心平面的距离，所述凸起壁设置在所述第一安装面上。
优选地，在上述内窥镜头端中，所述功能器件包括：
水气系统的喷嘴，所述喷嘴安装在所述第一安装面中；
成像系统的物镜，所述物镜安装在所述第二安装面中；
照明系统的透镜，所述透镜安装在所述第三安装面中。
优选地，在上述内窥镜头端中，所述头端座的内侧面和所述引导面之间的夹角大于90度，且小于180度。
优选地，在上述内窥镜头端中，所述抵接固定件位于所述收容空间的底部，所述抵接固定件的抵接面包括第一抵接面和第二抵接面；
所述第一抵接面用于与所述定位槽配合以对所述被定位件进行夹持固定；
所述内窥镜抬钳器的一侧设置有所述剪切棱，另一侧设置有侧边定位部，所述内窥镜抬钳器的抬升后，所述侧边定位部能够配合所述第二抵接面对处于第二偏向伸出状态的所述被定位件进行夹持固定。
优选地，在上述内窥镜头端中，所述第二抵接面和所述第二内侧面构成用于容纳所述侧边定位部的夹持槽，当所述被定位件处于第二偏向伸出状态时，所述抬钳器抬升后，所述被定位件能够被所述侧边定位部抵接固定在所述夹持槽内。
优选地，在上述内窥镜头端中，所述第一抵接面与所述内窥镜头端的中心轴线之间的夹角大于零。
优选地，在上述内窥镜头端中，所述第二抵接面为平面、曲面或阶梯面。
一种十二指肠镜系统，所述十二指肠镜系统中设置有如上文中所述的内窥镜头端。
从上述技术方案可以看出，采用本发明提供的内窥镜抬钳器、内窥镜头端和十二指肠镜系统，在导丝、导管或其它处置器械等被定位件偏向伸出时，能够将其调整回定位槽内，以对其进行有效精准地夹持固定，达到避免被定位件脱出乳头和向乳头内部移动、令手术顺利进行的目的。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为现有技术中的导丝正常伸出、偏右伸出和偏左伸出时呈现的三种不同轨迹示意图；
图2为本发明第一具体实施例中提供的抬钳器的结构示意图；
图3为本发明第二具体实施例中提供的抵接固定件的结构示意图；
图4为本发明第二具体实施例中提供的抬钳器抬钳后和抵接固定件的位置关系示意图；
图5为本发明第二具体实施例中提供的内窥镜头端的结构示意图；
图6为本发明第二具体实施例中提供的导丝正常伸出且被抬钳器的定位卡口定位时的结构示意图；
图7为本发明第二具体实施例中提供的导丝偏右伸出和偏左伸出后抬钳器抬钳时的结构示意图；
图8为本发明第二具体实施例中提供的抬钳器抬钳过程中通过抬钳器的引导面将偏右伸出的导丝引导至抬钳器定位卡口内时导丝移动轨迹分解示意图；
图9为图8中的导丝运动方向分解示意图；
图10为图9的另一角度视图；
图11为图10中抬钳器的引导面所在平面和内窥镜头端的轴向之间的夹角示意图；
图12为图11的另一角度视图；
图13为本发明第二具体实施例中提供的导丝偏左伸出后且被抬钳器和抵接固定件夹持定位时的结构示意图；
图14为本发明第三具体实施例提供的十二指肠镜系统的结构示意图。
其中：
1-抬钳器，2-抵接固定件，3-头端座，4-导丝，
10-定位卡口，11-剪切棱，12-引导面，13-侧边定位部，14-引导槽，
20-第一抵接面；
31-第一安装部，32-第二安装部，
310-凸起壁，311-工作面，312-喷嘴，313-物镜，314-透镜；
3100-倾斜棱边，
100-光源装置，200-处理器装置，300-处置插入部，
301-操作端，302-内窥镜头端。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
第一具体实施例
请参阅图2，图2为本发明第一具体实施例中提供的抬钳器的结构示意图。
本发明第一具体实施例提供了一种内窥镜抬钳器。其中：内窥镜抬钳器的底部连通器械通道且设置有用于与内窥镜头端座3铰接的铰接部；内窥镜抬钳器的顶部设置有与被定位件适配的定位槽10；内窥镜抬钳器的侧边设置有剪切棱11和引导面12，引导面12位于定位槽10和剪切棱11之间。
当被定位件偏右伸出(即“处于第一偏向伸出状态”)时，随着内窥镜抬钳器的抬升：首先，剪切棱11能够贴着头端座3的内侧面移动，以将处于右侧偏向伸出状态的被定位件引导至引导面12上；然后，引导面12能够将被定位件引导至定位槽10内；最后，内窥镜抬钳器的定位槽10配合抵接固定件2对被定位件进行夹持固定。
可见，采用本发明第一具体实施例提供的内窥镜抬钳器，在导丝、导管或其它处置器械等被定位件偏向伸出时，能够将其调整回定位槽10内，以对其进行有效精准地夹持固定，达到避免被定位件脱出乳头和向乳头内部移动、令手术顺利进行的目的。
具体地，上述内窥镜抬钳器中，定位槽10的外槽口为位于内窥镜抬钳器 的顶端的定位卡口100；定位卡口100和器械通道之间设置有与两者分别连通的引导槽14。抬起前，被定位件能够通过引导槽14被引导至定位卡口100内且侧向限位；抬钳过程中，引导面12能够将被定位件引导至定位槽10和定位卡口100内进行定位。
具体地，上述内窥镜抬钳器中，定位槽10为条形卡槽结构，定位槽10的一侧与引导面12相交构成第一过渡棱边或过渡面，定位槽10的另一侧与引导槽14相交构成第二过渡棱边。
第二具体实施例
请参阅图3至图13，图3为本发明第二具体实施例中提供的抵接固定件的结构示意图；图4为本发明第二具体实施例中提供的抬钳器抬钳后和抵接固定件的位置关系示意图；图5为本发明第二具体实施例中提供的内窥镜头端的结构示意图；图6为本发明第二具体实施例中提供的导丝正常伸出且被抬钳器的定位卡口定位时的结构示意图；图7为本发明第二具体实施例中提供的导丝偏右伸出和偏左伸出后抬钳器抬钳时的结构示意图；图8为本发明第二具体实施例中提供的抬钳器抬钳过程中通过抬钳器的引导面将偏右伸出的导丝引导至抬钳器定位卡口内时导丝移动轨迹分解示意图；图9为图8中的导丝运动方向分解示意图；图10为图9的另一角度视图；图11为图10中抬钳器的引导面所在平面和内窥镜头端的轴向之间的夹角示意图；图12为图11的另一角度视图；图13为本发明第二具体实施例中提供的导丝偏左伸出后且被抬钳器和抵接固定件夹持定位时的结构示意图。
本发明第二具体实施例提供了一种内窥镜头端。该内窥镜头端包括头端座3和抬钳器1，抬钳器1为如本发明第一具体实施例中提供的内窥镜抬钳器。
具体地，请参阅图5，该内窥镜头端中的头端座3包括第一安装部31、第二安装部32和用于容纳抬钳器1的收容空间。该收容空间的底部用于连通器械通道，收容空间的两侧分别为第一安装部31的第一内侧面和第二安装部32的第二内侧面。
第一安装部31的正面为与第一内侧面相交的工作面311，工作面311用于安装功能器件，工作面311上靠近收容空间的底部设置有凸出工作面311外 的凸起壁310，凸起壁310的内侧面与第一内侧面共面且均为头端座3的内侧面。
当被定位件由器械通道伸出且在收容空间底部发生偏右伸出的情况时，会贴在第一安装部31的第一内侧面上。由于第一内侧面上设置有凸起壁310，而凸起壁310增加了第一安装部31的第一内侧面向外延伸的距离，从而能够对被定位件起到导向伸直的作用，有利于避免被定位件向第一安装部31外弯折、偏离内窥镜头端座的中心轴线。
并且，在抬钳器1抬升过程中，剪切棱11能够贴着第一安装部31的第一内侧面和凸起壁310的内侧面移动到偏右伸出的被定位件所在位置，并通过剪切棱11将被定位件移动到引导面12上，再通过引导面12将被定位件引导至抬钳器1的顶端的定位槽10和定位卡口100内。通过定位卡口100对被定位件进行定位(即侧向限位)，当抬钳器1抬升至极限位置时，通过抬钳器1的定位槽10和抵接固定件2的抵接面20能够对被定位件进行夹持固定。
具体地，如图5和图6中所示，凸起壁310的外棱边包括凸起高度逐渐减小的倾斜棱边3100，倾斜棱边3100的凸起高度最高的部分相对其凸起高度最低的部分更加靠近收容空间的底部。
从而，当出现被定位件由器械通道伸出且在收容空间底部发生偏右伸出的情况后，抬钳器1抬升，剪切棱11贴着第一安装部31的第一内侧面和凸起壁310的内侧面移动到偏右伸出的被定位件所在位置；然后，随着抬钳器1的抬升和剪切棱11的移动，被定位件能够被剪切棱11移动到引导面12上，并且，此时，随着抬钳器1的抬升和剪切棱11的移动，凸起壁310的倾斜棱边3100能够对被定位件起到逐步导直的作用。该导直过程可参见图8中箭头所示的导丝移动轨迹，箭头t1是指，抬钳器1抬起过程中，导丝被压向抵接固定件2；箭头t2是指，由于导丝受到抬钳器右侧的剪切棱11和导向面12的导向作用，从而被引导至定位卡口100内。
具体地，在第一安装部31的工作面311中，沿轴向依次设置有第一安装面、第二安装面和第三安装面，其中：第一安装面位于收容空间的底部的径向外侧；第三安装面位于收容空间的顶部的径向外侧；第二安装面为位于第一安装面和第三安装面之间的倾斜面。并且，内窥镜头端的中心平面到第一安装面 的距离小于内窥镜头端的中心平面到第三安装面的距离。如图中所示，凸起壁310设置在第一安装面上，以及第一安装面和第二安装面的相交处。
具体地，第一安装部31的工作面311中安装的功能器件包括水气系统的喷嘴312、成像系统的物镜313、照明系统的透镜314。喷嘴312安装在第一安装面中，物镜313安装在第二安装面中，透镜314安装在第三安装面中。
具体地，第一内侧面(即头端座3中第一安装部31的内侧面)和引导面12之间的夹角大于90度，且小于180度。由于第一内侧面与内窥镜头端的中心轴线平行，从而，抬钳器1上的引导面12和内窥镜头端的中心轴线之间的夹角，等于上述第一内侧面和引导面12之间的夹角。具体可参见图11中的虚线和夹角R。
从而，请参阅图11，当被定位件从位于抵接固定件2的右侧和抬钳器1的右侧伸出(即偏右伸出)，并且抬钳器1抬起较小角度时，从被定位件伸出端观察，头端座3中的第一内侧面与抬钳器1上的引导面12形成V型槽将导丝限位，具体。
请参阅图8和图9，伴随抬钳器1抬起，被定位件的导向运动可以分解成为两个运动，一个运动是沿着凸起壁310的棱部被导直的运动，如图9中倾斜向上的粗箭头所示；另一个运动是沿着抬钳器的导向面12被导入定位卡口内的运动，如图9中倾斜向左的粗箭头所示。从而，其在抬钳器1上的运动轨迹如图8所示。
具体地，抵接固定件2位于收容空间的底部，抵接固定件2的抵接面包括第一抵接面20和第二抵接面。第一抵接面20用于与定位槽10配合以对被定位件进行夹持固定；内窥镜抬钳器的右侧设置有剪切棱11，内窥镜抬钳器的左侧设置有侧边定位部13，内窥镜抬钳器的抬升后，侧边定位部13能够配合第二抵接面(即抵接固定件2的左侧抵接面)对处于偏左伸出(即“处于第二偏向伸出状态”)的被定位件进行夹持固定。
进一步地，上述抵接固定件2上的第二抵接面和头端座3上的第二内侧面构成用于容纳抬钳器1的侧边定位部13的夹持槽。
如图13所示，当被定位件从抵接固定件2的左侧和抬钳器1的左侧伸出时，抬钳器1抬升后，被定位件能够被侧边定位部13抵接固定在该夹持槽内， 形成两点夹持。
具体地，抵接固定件2上的第一抵接面20与内窥镜头端的中心轴线之间的夹角大于零。
具体地，抵接固定件2上的第一抵接面20可以是平面、曲面或阶梯面；抵接固定件2上的第二抵接面可以是平面、曲面或阶梯面。
第三具体实施例
请参阅图14，图14为本发明第三具体实施例提供的十二指肠镜系统的结构示意图。
本发明第三具体实施例提供了一种十二指肠镜系统，该十二指肠镜系统中的内窥镜镜体中设置有如本发明第一具体实施例中提供的内窥镜头端。
该十二指肠镜系统包括内窥镜镜体部分、光源部分100和主机部分200；其中，内窥镜镜体部分通常包括用于插入待测体腔内的插入部300，插入部300的一端为内窥镜头端302，另一端为操作端301，内窥镜头端302中设置有抬钳器，操作端301上设置有用于控制抬钳器升降的拨杆；光源部分100提供内窥镜的白光照明及特殊光照明，主机部分200提供内窥镜的信号控制，内窥镜镜体的图像处理等，其中，主机部分200与显示器相连接，实现内窥图像的显示。
具体地，上述内窥镜头端302的内窥镜的头端座上还设置有水气系统的喷嘴312、成像系统的物镜313和照明系统的透镜314。其中：喷嘴312将水或空气等流体喷到物镜313的外表面上，对其进行清洁；成像系统的物镜内侧，配置有观察光学系统的摄像元件CCD，用于将插入部拍摄的影像信息，发回主机部分进行显示；透镜314上连接有作为光传输通路的光纤。
进一步地，上述内窥镜头端座外套设有头端帽，头端帽与头端座可拆卸连接。
在此需要说明的是，本文中所说的“左”和“右”均是以图5至图13为参照进行举例说明。在其他具体实施例中，还可以将内窥镜头端设置成和本发明第二具体实施例提供的内窥镜头端左右对称的结构，其功能效果不变。此时，被定位件处于第一偏向伸出状态是指被定位件偏左伸出，被定位件处于第二偏 向伸出状态是指被定位件偏右伸出，其他结构可参见上述具体实施例，本文对此不再赘述。
最后，还需要说明的是，在本文中，诸如第一和第二等之类的关系术语仅仅用来将一个实体或者操作与另一个实体或操作区分开来，而不一定要求或者暗示这些实体或操作之间存在任何这种实际的关系或者顺序。而且，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者设备不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者设备所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括所述要素的过程、方法、物品或者设备中还存在另外的相同要素。
本说明书中各个实施例采用递进的方式描述，每个实施例重点说明的都是与其他实施例的不同之处，各个实施例之间相同相似部分互相参见即可。
对所公开的实施例的上述说明，使本领域专业技术人员能够实现或使用本发明。对这些实施例的多种修改对本领域的专业技术人员来说将是显而易见的，本文中所定义的一般原理可以在不脱离本发明的精神或范围的情况下，在其它实施例中实现。因此，本发明将不会被限制于本文所示的这些实施例，而是要符合与本文所公开的原理和新颖特点相一致的最宽的范围。

Claims (14)

  1. 一种内窥镜抬钳器，其特征在于，所述内窥镜抬钳器的底部连通器械通道且设置有用于与内窥镜头端座(3)铰接的铰接部；
    所述内窥镜抬钳器的顶部设置有与被定位件适配的定位槽(10)；
    所述内窥镜抬钳器的侧边设置有剪切棱(11)和引导面(12)，所述引导面(12)位于所述定位槽(10)和所述剪切棱(11)之间；
    在所述内窥镜抬钳器的抬升过程中，所述剪切棱(11)能够贴着头端座(3)的内侧面移动以将处于第一偏向伸出状态的所述被定位件引导至所述引导面(12)上，所述引导面(12)能够将所述被定位件引导至所述定位槽(10)内，所述定位槽(10)能够配合抵接固定件(2)对所述被定位件进行夹持固定。
  2. 根据权利要求1所述的内窥镜抬钳器，其特征在于，所述定位槽(10)的外槽口为位于所述内窥镜抬钳器的顶端的定位卡口(100)；
    所述定位卡口(100)和所述器械通道之间设置有与两者分别连通的引导槽(14)，所述内窥镜抬钳器抬起前，所述被定位件能够通过所述引导槽(14)被引导至所述定位卡口(100)内且被侧向限位。
  3. 根据权利要求2所述的内窥镜抬钳器，其特征在于，所述定位槽(10)为条形卡槽结构，所述定位槽(10)的一侧与所述引导面(12)相交构成第一过渡棱边或过渡面，所述定位槽(10)的另一侧与所述引导槽(14)相交构成第二过渡棱边。
  4. 一种内窥镜头端，包括头端座(3)和抬钳器(1)，其特征在于，所述抬钳器(1)为如权利要求1至3任一项所述的内窥镜抬钳器。
  5. 根据权利要求4所述的内窥镜头端，其特征在于，所述头端座(3)包括第一安装部(31)、第二安装部(32)和用于容纳所述抬钳器(1)的收容空间，所述收容空间的底部用于连通所述器械通道，所述收容空间的两侧分别为 所述第一安装部(31)的第一内侧面和所述第二安装部(32)的第二内侧面，所述第一安装部(31)的正面为与所述第一内侧面相交的用于安装功能器件的工作面(311)，所述工作面(311)上靠近所述收容空间的底部设置有凸出所述工作面(311)外的凸起壁(310)，所述凸起壁(310)的内侧面与所述第一内侧面共面且均为所述头端座(3)的内侧面；
    所述抬钳器(1)抬升过程中，所述剪切棱(11)能够贴着所述凸起壁(310)的内侧面移动以将处于所述第一偏向伸出状态的所述被定位件引导至所述引导面(12)上。
  6. 根据权利要求5所述的内窥镜头端，其特征在于，所述凸起壁(310)的外棱边包括凸起高度逐渐减小的倾斜棱边(3100)，所述倾斜棱边(3100)的凸起高度最高的部分相对其凸起高度最低的部分更加靠近所述收容空间的底部。
  7. 根据权利要求5所述的内窥镜头端，其特征在于，所述工作面(311)中，沿轴向依次设置有第一安装面、第二安装面和第三安装面，其中：
    所述收容空间的底部的径向外侧为所述第一安装面；
    所述收容空间的顶部的径向外侧为所述第三安装面；
    所述第二安装面为位于所述第一安装面和所述第三安装面之间的倾斜面；
    所述第一安装面和所述内窥镜头端的中心平面的距离小于所述第三安装面和所述内窥镜头端座的中心平面的距离，所述凸起壁(310)设置在所述第一安装面上。
  8. 根据权利要求7所述的内窥镜头端，其特征在于，所述功能器件包括：
    水气系统的喷嘴(312)，所述喷嘴(312)安装在所述第一安装面中；
    成像系统的物镜(313)，所述物镜(313)安装在所述第二安装面中；
    照明系统的透镜(314)，所述透镜(314)安装在所述第三安装面中。
  9. 根据权利要求4至8任一项所述的内窥镜头端，其特征在于，所述头端座(3)的内侧面和所述引导面(12)之间的夹角大于90度，且小于180度。
  10. 根据权利要求5所述的内窥镜头端，其特征在于，所述抵接固定件(2)位于所述收容空间的底部，所述抵接固定件(2)的抵接面包括第一抵接面(20)和第二抵接面；
    所述第一抵接面(20)用于与所述定位槽(10)配合以对所述被定位件进行夹持固定；
    所述内窥镜抬钳器的一侧设置有所述剪切棱(11)，另一侧设置有侧边定位部(13)，所述内窥镜抬钳器的抬升后，所述侧边定位部(13)能够配合所述第二抵接面对处于第二偏向伸出状态的所述被定位件进行夹持固定。
  11. 根据权利要求10所述的内窥镜头端，其特征在于，所述第二抵接面和所述第二内侧面构成用于容纳所述侧边定位部(13)的夹持槽，当所述被定位件处于第二偏向伸出状态时，所述抬钳器(1)抬升后，所述被定位件能够被所述侧边定位部(13)抵接固定在所述夹持槽内。
  12. 根据权利要求11所述的内窥镜头端，其特征在于，所述第一抵接面(20)与所述内窥镜头端的中心轴线之间的夹角大于零。
  13. 根据权利要求11所述的内窥镜头端，其特征在于，所述第二抵接面为平面、曲面或阶梯面。
  14. 一种十二指肠镜系统，包括，其特征在于，所述十二指肠镜系统中设置有如权利要求4至13任一项所述的内窥镜头端。
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CN109589084A (zh) * 2018-12-29 2019-04-09 深圳开立生物医疗科技股份有限公司 一种头端部及内窥镜
CN110179431A (zh) * 2019-06-24 2019-08-30 深圳开立生物医疗科技股份有限公司 内窥镜抬钳器、内窥镜头端和十二指肠镜系统

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