WO2017025434A1 - Tête d'endoscope, endoscope, capuchon et procédé de formation d'un capuchon - Google Patents

Tête d'endoscope, endoscope, capuchon et procédé de formation d'un capuchon Download PDF

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Publication number
WO2017025434A1
WO2017025434A1 PCT/EP2016/068661 EP2016068661W WO2017025434A1 WO 2017025434 A1 WO2017025434 A1 WO 2017025434A1 EP 2016068661 W EP2016068661 W EP 2016068661W WO 2017025434 A1 WO2017025434 A1 WO 2017025434A1
Authority
WO
WIPO (PCT)
Prior art keywords
working channel
endoscope
cap
endoscope head
distal
Prior art date
Application number
PCT/EP2016/068661
Other languages
German (de)
English (en)
Inventor
Wolfgang Mayer
Anh Minh Do
Original Assignee
Digital Endoscopy Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Digital Endoscopy Gmbh filed Critical Digital Endoscopy Gmbh
Priority to CN201680033002.8A priority Critical patent/CN108064145B/zh
Priority to JP2017551154A priority patent/JP6811720B2/ja
Publication of WO2017025434A1 publication Critical patent/WO2017025434A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/012—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
    • A61B1/00064—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
    • A61B1/00064—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
    • A61B1/00101—Insertion part of the endoscope body characterised by distal tip features the distal tip features being detachable
    • 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
    • A61B1/00137—End pieces at either end of the endoscope, e.g. caps, seals or forceps plugs
    • 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
    • A61B1/00163—Optical arrangements
    • A61B1/00174—Optical arrangements characterised by the viewing angles
    • A61B1/00177—Optical arrangements characterised by the viewing angles for 90 degrees side-viewing
    • 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
    • A61B1/00142—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 means for preventing contamination, e.g. by using a sanitary sheath

Definitions

  • the present invention relates to an endoscope head with an endoscopy head body, in which at least one working channel is formed, wherein on the distal side of the endoscope head body, a pivotable working channel element is provided. Furthermore, the invention relates to an endoscope with such an endoscope head, to a cap for the endoscope and to a cap forming method.
  • Such an endoscope head body can be used in a duodenoscope, ie an endoscope for examining e.g. the esophagus or the duodenum, the bile duct, bile, pancreatic duct, pancreas, etc. are applied.
  • duodenoscope With the help of the duodenoscope, it is possible to enter the duodenum through the esophagus, the stomach and the stomach outlet.
  • the duodenoscope has a lateral (lateral) optic (illumination device and camera). This may complicate insertion and advancement through the esophagus, as no "forward" viewing is readily possible, only in the stomach or duodenum is there sufficient room to angle the distal end of the duodenoscope through about 90 °, and so on to be able to look ahead.
  • the duodenoscope also has at the output of the working channel an albaran lever, which allows pivoting a targeted deflection of the tools that are pushed through the working channel.
  • the duodenoscope After the use of the duodenoscope this is subjected to a treatment. This must reliably transfer all microorganisms such as Exclude bacteria, viruses, fungi, worms and spores.
  • the duodenoscope is first cleaned manually in order to remove organic material or chemical residue without residue. After cleaning, a machine disinfection or sterilization takes place.
  • a pivotable working channel end piece is provided on the distal working channel end portion.
  • the working channel end piece is pivotally mounted relative to the endoscope head body.
  • the pivotable working channel end piece By pivoting the pivotable working channel end piece, the distal end opening of the pivotable working channel end piece can be brought into the desired angular position.
  • the pivotable working channel end piece takes over the task of the Albaranhebels i. by pivoting to allow a targeted deflection for the tools that are pushed through the working channel.
  • the endoscope head may further include a distal push-on cap.
  • the working channel end piece may be pivotally mounted relative to the cap.
  • the distal push-on cap may have an opening corresponding to a working channel end opening.
  • the distal push-on cap can surround the distal end of the endoscope head and the pivotable working channel end piece in the state pushed on the endoscope head.
  • the distal push-on cap may be disposable.
  • it is formed of a low-cost silicone material.
  • a working channel end element can be arranged, wherein a cable pull body can be anchored in the working channel end element, and a pivot element can be arranged on the proximal side of the working channel delement, which is supported on its proximal side on the endoscope head body.
  • the cable body e.g. a nipple or a diameter extension of the cable may be directly integrated with a stiffener at the distal end of the pivotable working channel end piece.
  • the swiveling working channel end piece is bendable or elastic and can be swung out by simply pulling on the cable pull.
  • the working channel end member may be an annular body whose distal opening forms a working channel end opening. Such a ring body is sufficiently rigid to absorb the force applied by the cable body and pulled, while maintaining its shape during the drawing process.
  • the pivoting element may be formed as a spiral spring. At the proximal side, the coil spring then bears against a support surface of the endoscope head body and the cable pull acts on the distal side of the spiral spring. Due to its elasticity, the spiral spring allows an easily accomplished well-defined Ausschwenkvorgang. In addition, due to its structure in cylindrical shape, the coil spring has an interior in longitudinal extension, which can form the working channel in a natural way. In addition, the coil spring prevents buckling of the pivoting element.
  • a spring holder may be provided, against which abuts a proximal end of the coil spring, wherein the distal end of the coil spring rests against the working channel end element.
  • At least one support wire may be provided between the spring holder and the working channel end element parallel to the longitudinal extension of the spiral spring.
  • the spring holder serves for the constant location fixation of the proximal end of the spiral spring on the endoscope head body.
  • the at least one support wire provides for a higher stiffness of the coil spring when swinging.
  • the pivoting element may be formed as a vertebral joint.
  • vertebral joint is meant a hinged connection of adjacent vertebrae.
  • the swivel joint may consist of a plurality of ring elements, which are articulated to each other, wherein the inner peripheral wall of the ring elements acts as a working channel inner wall.
  • Such a vertebral joint is sufficiently rigid and due to the articulated joints of adjacent sub-elements swing out very well.
  • the interior located in the longitudinal direction extending cavity offers a robust designable working channel.
  • the vertebral joint also prevents buckling of the pivot member.
  • the pivoting element may be surrounded by an elastic protective jacket.
  • the elastic protective jacket bends when swinging the pivot member with. As a result, any undercuts of the pivoting element are not exposed to the environment. Both in not swung out as well as in swung out position germs and foreign substances do not penetrate through the Protective jacket in to the actual pivot element.
  • the protective sheath has a tubular shape. The outer surface of the protective jacket is easy to clean. Therefore, the endoscope head can be cleaned more easily.
  • An endoscope according to the invention is provided with an endoscope head discussed above.
  • An alternative endoscope is provided with an endoscope head body in which at least one working channel and a cable channel are formed, wherein on the distal side of the working channel a working channel end piece is provided, which is pivotable by an actuation of the proximal side by means of a cable in the cable channel is guided, wherein on the distal side of the endoscope of the cable is covered by the cable duct and the Häkanalend collaborative.
  • the cable can extend in the cable channel and between an inner tube and an outer tube, wherein the inner tube forms the inside of the pivotable Häkanalend schizophrenias and the outer tube forms the outside of the pivotable Häkanalend matterss.
  • the cable may extend to an end member at the distal end of the pivotable working channel end piece and the outer tube forming the outside of the pivotable working channel end piece, the cable being seated in the end member in the press fit.
  • the cable can be sealed watertight in the endoscope head body and the working channel end piece.
  • a cap according to the invention which is applicable to a distal end of an endoscope having a pivotable working channel end in the head of the endoscope is provided with a bottomed cylinder with an endoscope head insertion opening on the side opposite the bottom and a window in the peripheral wall of the endoscope cylinder.
  • the cylinder may have a latch on the inside of the cylinder.
  • the cylinder may have a partition wall on the inside of the cylinder, the partition wall serving to separate an extension portion of the endoscope head and the pivotable working channel end portion.
  • the cap can be made of plastic.
  • the cap can be made of plastic by means of 3D printers or injection molds.
  • a cap forming method for forming a cap applicable to a distal end of an endoscope having a pivotable working channel end in the head of the endoscope, the cap comprising: a bottomed cylinder having an endoscope head insertion opening on the opposite side of the bottom Side, and a window in the peripheral wall of the cylinder; indicates: forming the cap of plastic.
  • the cap can be formed by means of 3D printer or plastic injection molds.
  • Fig. 1 shows a perspective view of an endoscope head according to the invention of a first embodiment.
  • FIG. 2 shows a side view of the endoscope head according to the invention of the first embodiment.
  • Fig. 3 shows a view of the endoscope head according to the invention of the first embodiment viewed from the distal side.
  • 4 shows a side view of the endoscope head according to the invention of the first embodiment, wherein the outer tube 32 and the inner tube 34 have been omitted for clarity of illustration.
  • FIG. 5 shows a side view of the endoscope head according to the invention of the first embodiment similar to FIG. 4, FIG. 5 shows a pivoted position.
  • FIG. 6 shows a side view of an endoscope head according to the invention of a second exemplary embodiment.
  • Fig. 7 shows a side view of a modification of the endoscope head of the second embodiment according to the invention.
  • FIG 8 shows a side view of a further modification of the endoscope head according to the invention of the second embodiment.
  • FIG 9 shows a perspective view of the endoscope head according to the invention with a protective cap 4.
  • FIGS. 1 to 3 each show views of the general structure of the first exemplary embodiment of the endoscope head 1 according to the invention.
  • An endoscope head 1 has an endoscope head body 11 which consists of a cylindrical base body I IA on the proximal side and an extension I IB extending distally from the base body I IA.
  • the extension IIB a camera 16 and a lighting device 17 are provided laterally aligned in a known manner.
  • the extension I IB has a rounded end face 14.
  • At least one working channel, a cable channel and lines for supplying the camera 16 and the lighting device 17 etc. are provided in the cylindrical base body IA.
  • At least the working channel and the cable channel each extend along the longitudinal direction of the base body I IA and parallel to each other.
  • the cable channel carries a cable 7 described below for actuating a pivotable working channel element 30.
  • the working channel carries micro-tools for examination, e.g. the esophagus or duodenum, bile duct, bile, pancreas, pancreas, etc.
  • the base body I IA has a distal surface 18, on which the extension I IB is formed integrally therewith.
  • the pivotable working channel element 30 is arranged, which extends parallel to the extension I IB in the distal direction.
  • a cap (not shown in FIGS. 1 to 3) can be placed on the endoscope head 1, which surrounds the extension I IB and the pivotable working channel element 30 and can be detachably fastened, for example, latching on the outer circumference of the base body I IA.
  • the cap has a side window through which the camera 16, the illumination device 17 and at least the distal end portion of the pivotable working channel member 30 are exposed to the outside.
  • the base body I IA On its outer circumferential surface, the base body I IA may be provided with a groove extending parallel to the proximal end side of the base body IA, which groove may be used as a locking groove for the cap.
  • the pivotable working channel element 30 is arranged pivotable relative to the endoscope head body 11.
  • the pivotable working channel element 30 has a cylindrical longitudinal extent, wherein in its interior a working channel 13 is formed. On the proximal side, the pivotable working channel element 30 is placed on the distal surface 18 of the base body IIA at a location at which the working channel section extending in the base body I IA opens distally. At the proximal side, the pivotable working channel member 30 may have a proximal annular member 31 which is glued, clamped, screwed, hooked, screwed or otherwise attached to the distal surface 18, see FIG. 4th
  • the proximal ring member 31 has a distal projection 36 extending distally.
  • the proximal ring member 31 and the distal projection 36 act as a spring retainer for a coil spring 5 described below.
  • the proximal ring member 31 has a cable pull channel parallel to the central axis of the endoscope head body which is aligned with the cable channel of the base body I IA and the distal side thereof extended.
  • the pivotable working channel member 30 has a distal ring member 33 with an internal opening forming the distal exit of the working channel 13.
  • the ring element 33 thus forms a working channel end element.
  • the ring member 33 is exemplarily formed in a form as a ring member with two radially opposite extensions.
  • the ring member 33 may also have a circular shape, an ellipse shape, an oval shape, or the like, with even a heart curve shape or a polyhedron being applicable.
  • the proximal ring element 31 and the distal ring element 33 are preferably constructed as geometrically similar bodies which define the outer shape of the pivotable working channel element 30.
  • a cable end 71 is integrated so that the cable pull 7 runs parallel to the central axis of the pivotable working channel element 30.
  • the cable end 71 can be used as a nipple or as a diameter extension of the cable 7 be formed and is fixed in a corresponding bore on the ring member 33, for example, in a press fit so that it does not detach from the distal ring member 33.
  • the proximal ring member 31 has at the bore at the distal ring member 33 corresponding position an opening through which the cable 7 occurs so that the cable 7 extends parallel to the central axis of the pivotable working channel member 30 from the proximal ring member 31 to the ring member 33.
  • the ring member 33 has a tapered inner surface tapering to the exit, forming the working channel exit surface.
  • the ring element 33 may have on its conical inner circumferential surface a V-like recess 33A extending towards the central axis of the pivotable working channel element 30 as a guide groove for a guide wire.
  • the recess 33A is attached to the ring member 33 at a position opposite to the cable end 71 with respect to the central axis.
  • the inner peripheral surface of the ring member 33 may be cylindrical so that the V-like recess 33A extends as a guide groove parallel to the center axis of the swingable working channel member 30.
  • the distal ring member 33 has a proximal projection 35 extending in the proximal direction.
  • the distal ring member 33 and the proximal projection 35 act as a spring holder for a coil spring described below.
  • a pivot member is arranged between the proximal ring member 31 and the distal ring member 33.
  • the pivoting element is designed as a spiral spring 5.
  • the spiral spring 5 extends parallel to the central axis of the endoscope body 1.
  • the proximal longitudinal end of the spiral spring 5 bears against the proximal ring element 31, and the distal longitudinal end of the spiral spring 5 bears against the distal ring element 33.
  • the coil spring 5 is bounded in the longitudinal direction by the proximal ring member 31 and the distal ring member 33.
  • At least one win on the proximal side of the coil spring 5 is disposed around the outer periphery of the distal projection 36, and at least one turn on the distal side of the coil spring 5 is disposed around the outer circumference of the proximal projection 35.
  • the coil spring 5 is supported in the radial direction.
  • the pivotable working channel member 30 consists between the proximal ring member 31 and the distal ring member 33 of an outer tube 32, the coil spring 5 as a pivot member and an inner tube 34 as viewed from outside to inside.
  • the pivoting element is covered in the radial direction on its outer side by the outer tube 32 and covered on its inner side by the inner tube 34.
  • the inner circumferential surface of the inner tube 34 forms a portion of the working channel 13 in the pivotable working channel element 30.
  • the inner tube 34 is at the inner periphery of the distal projection 36 and the inner periphery of the proximal projection 35 z. B. attached by gluing and extends between them.
  • the outer tube 32 is on the outer circumference of the proximal ring member 31 and the outer periphery of the distal ring member 33 z. B. attached by gluing and extends between them.
  • a support wire 52 is arranged, which in the in Fig. In FIG. 4, in which the pivoting element is not pivoted, running parallel to the central axis of the endoscope body and thus parallel to the cable pull 7 and to the extension direction of the spiral spring 5.
  • the support wire 52 may be seated on the outer circumference of the distal projection 36 and on the outer circumference of the proximal projection 35 and inserted in longitudinal recesses in the proximal ring member 31 and distal ring member 33.
  • Fig. 4 shows the endoscope head in the rest position, in which the pivoting element is not pivoted.
  • the cable 7 is connected to a control element such as a joystick. In the rest position no force is applied to the cable 7.
  • the ring member 33 When the cable 7 is pulled on the proximal side, the ring member 33 is pulled by the cable end 71 to the proximal direction. Due to the rigidity of the pivot member, here the coil spring, the portion of the ring member 33 to which the cable end 71 is attached moves toward the proximal direction, while the radially opposite portion of the ring member 33 on which the recess 33A may be provided tends to keep his place. Thus, the ring member 33 pivots in the lateral direction (pivoting direction) of the endoscope head 1, to which also the camera 16 and the illumination 17 point. The ring element 33 also pulls the pivotable working channel element 30 in the pivoting direction.
  • Fig. 5 shows the endoscope head in a position in which the pivoting element is pivoted by approximately 90 °.
  • the pivoting direction is predefined by the arrangement of the cable 7 in the pivotable working channel element 30.
  • the pivoting angle of the pivotable working channel element 30 is determined by the drawn path of the cable 7.
  • the pivoting angle of the pivotable working channel element 30 may exceed 90 ° and may even be up to 160 °.
  • the pivot point of the pivoting operation of the pivotable working channel element 30 is located in a plane in which the cable pull 7 and the central axis of the pivotable working channel element 30 extend.
  • the endoscope head 1 is easy to clean and reprocess. Any undercuts or unfavorable to reach places, such as. B. at an Albaranhebel, are not present on the endoscope head 1.
  • the rinsing liquid for cleaning can flow around the endoscope head 1 with ease and remove foreign matter. Since the coil spring 5 and the cable 7 are arranged in an inner space, which is surrounded by the inner working channel 13 (inner tube 34), outside of the outer tube 32, and distally by the distal ring member 33, the coil spring 5 and the cable 7 from contamination protected.
  • the distal end of the working channel on the ring element 33 can be pivoted by more than 90 ° relative to the base body I IA and to the extension I IB.
  • the user has a much greater latitude in handling. For example, the insertion of a tool z. B. in the bile duct greatly facilitated when the endoscope head body is positioned in the duodenum opposite the exit of the bile duct.
  • FIGS. 6 to 8 are side views of the endoscope head body of the second embodiment.
  • the elements of the second embodiment which are similar to the elements of the first embodiment are not explained in detail and, if shown, bear the same reference numerals.
  • the pivoting element formed as a swivel joint 6.
  • the pivotable working channel member 30 also has a proximal ring member 31 secured to the distal surface 18.
  • the proximal ring element 31 has a distal side on which first rotary elements 62 are rotatably mounted on the circumference. On the distal side of the proximal ring element 31 extending projections are provided in the rest position to the distal side, in which first bearing 63 are formed. At the first bearings 63, the first rotary elements 62 are rotatably mounted.
  • the first rotary elements 62 are formed in one piece with a second ring element 61, which is similar in shape and size to the proximal ring element 31.
  • the second ring element 61 has a distal side on which second rotary elements 62 'are mounted rotatably on the circumference. At the distal side of the second ring element 61, protrusions extending to the distal side are provided in the rest position, in which second bearings 63 'are formed. At the second bearings 63 ', the second rotary elements 62' are rotatably mounted.
  • the second rotary elements 62 ' are integrally formed with a third ring element 61' which is identical in shape and size to the second ring element 61.
  • the third ring element 61 ' has a distal side on which third rotary elements 62''are mounted rotatably on the circumference, on the distal side of the third ring element 61' projections are provided which are at rest and extend to the distal side, in which third bearings 63 '' are provided. are formed.
  • the third rotary elements 62" are rotatably mounted.
  • the third rotary members 62 are integrally formed with a distal ring member 33 constructed on the distal side as in the first embodiment.
  • the proximal ring member 31 and the distal ring member 33 act as end members of a vertebral joint structure formed of ring members and rotary members provided thereon for each next ring member.
  • respective Seilzugkanäle are formed in the ring elements 31, 61, 61 ', 33.
  • the respective cable pull channels correspond to the cable pull channel in the proximal ring element 31 of the first exemplary embodiment.
  • the cable end sits in the distal ring element 33, similar to the first exemplary embodiment.
  • the ring members 31, 61, 61 ', 33 have an inner periphery on which an inner tube member which is similar to the inner tube member 34 of the first embodiment is arranged.
  • the ring members 31, 61, 61 ', 33 have an outer periphery on which an outer tube member which is similar to the outer tube member 32 of the first embodiment is arranged.
  • the pivotable working channel element 30 has the distal ring element 33 with an internal opening which forms the distal outlet of the working channel 13.
  • the ring element 33 thus also forms the working channel delement.
  • the ring member 33 is exemplarily formed in a form as a ring member in a circular shape.
  • the basic principle is similar to the first embodiment.
  • the pivotable working channel element 30 is formed as a vertebral joint structure.
  • the ring member 33 is pulled by the cable end to the proximal direction. Due to the supports of the ring members 61, 61 ', 33 on the respective rotary members 62, 62', 62 "and their rotatable mounting provided on the rotary members 62, 62 ', 62", the ring members 61, 61', 33 pivot around or pivot As a result, the region of the ring element 33, to which the cable end is fastened, moves to the proximal direction the ring element 33 in the lateral direction (pivoting direction) of the endoscope head 1, to which also the camera 16 and the illumination 17 point.
  • FIG. 6 shows the endoscope head in a position in which the pivoting element is pivoted by more than 90 °.
  • FIG. 6 shows the field of view 16A of the camera 16 and a guide wire W as a tool, which is guided through the working channel element 30.
  • the guide wire W on the pupilla sphincter muscle at the mouth of the bile duct to the duodenum enters the bile duct.
  • the pivoting direction is predefined by the arrangement of the rotary elements on the ring elements. Therefore, the rotary members are arranged on the ring members so that the pivotable working channel member 30 pivots in the desired lateral direction as in the first embodiment.
  • the pivot angle of the pivotable working channel element 30 is determined by the distance between the ring elements to each other, which in turn is defined by the length (width) of the rotary elements measured in the longitudinal direction of the endoscope body.
  • the pivoting angle of the pivotable working channel element 30 may exceed 90 ° and may even be up to 160 °.
  • the pivot point of the pivoting operation of the pivotable working channel element 30 is located in a plane in which the cable pull 7 and the central axis of the pivotable working channel element 30 extend.
  • the proximal ring element 31 is made longer in the direction of the central axis of the endoscope head.
  • pivotable working channel element 30 can be achieved, since the distal ring element 33 can be pivoted still further to the proximal side, without fear that it comes into contact with the base body I IA. It should be noted here that the swivel location and the distal end of the working channel on the pivotable working channel element 30 can be located distally of the camera 16.
  • Fig. 9 shows a cap 4 in use. In both embodiments, the cap 4 can be applied.
  • the cap 4 is formed as a bottomed cylinder. The bottom of the cap 4 is at its distal side.
  • the cap 4 is placed in the application to the endoscope head body I IA, I IB. In the region of the bottom, the cap 4 is rounded so that it meets the requirements for inserting the endoscope head 1 into an object to be examined.
  • the cap 4 has a in Fig. 9 upwardly facing opening 41.
  • the opening 41 of the cap 3 forms a side open window for the camera 16 and the illumination device 17 and guided through the working channel 13 tools in the application of the endoscope head first
  • the cap 4 has on its entire circumference an inwardly projecting latching nose, which may be designed as a curve or curvature. This latching nose can engage a groove on the outer circumference of the base body I IA of the endoscope head body when the cap 4 is placed on the endoscope head body.
  • the cap 4 has an intermediate wall 42 extending from the inner peripheral portion of the cap 4, which faces the opening 41, to the opening 41.
  • the intermediate wall 42 separates the extension I IB of the pivotable working channel element 30th
  • a groove on the endoscope head body is described, in which engages a latching nose of the cap.
  • the groove may be provided circumferentially or in sections on the circumference.
  • the groove can also be a or more Einrastvertiefonne be provided on the circumference of the endoscope head body.
  • one or more radially inwardly projecting latching projections may be provided instead of a (circumferential or sectionally provided) latching nose, which are adapted with respect to position and shape of the Einrastverianaonne on the circumference of the endoscope head body.
  • the pivotable working channel member 30 in FIG. 4 has a proximal ring member 31 attached to the distal surface 18.
  • the hose member 32 is attached to the outer periphery.
  • the inner tube 34 is attached.
  • the distal projection 36 serves to support the spring 5.
  • the distal projection 36 may be omitted when the inner tube 34 is attached to the distal end of the working channel in the base body I IA of the endoscope head body.
  • a groove or protrusion may be formed, which radially holds the first proximal turn of the spring 5.
  • the spring 5 may have a distal and / or proximal spring end angled in the spring extension direction.
  • a receiving bore for accommodating the proximal spring end is provided, and / or on the proximal surface of the projection 35, a receiving bore for accommodating the distal end of the spring is provided.
  • the support wire 52 is inserted on the outer circumference of the distal projection 36 and on the outer circumference of the proximal projection 35 in the longitudinal direction provided recesses (holes) in the proximal ring member 31 and distal ring member 33.
  • recesses (bores) provided in the longitudinal direction may be provided on the distal projection 36 and on the proximal projection 35 into which the support wire 52 is inserted.
  • the intermediate wall 42 of the cap 4 can be omitted.
  • the pivot member consists of a swivel joint assembly with three pairs of rotary elements and four rings.
  • the invention is not limited thereto. There can be four pairs of rotary elements and five rings; five pairs of rotary elements and six rings, etc. may be provided. It can also be provided two pairs of rotary elements and three rings, etc.
  • the invention is not only applicable to a duodenoscope.
  • the principle of the invention can also be applied to an ultrasonic endoscope.
  • a working channel is shown with a pivotable working channel element at the end of the working channel.
  • the invention can also be applied to endoscopes having a plurality of working channels, each with a pivotable working channel element at the end of the respective working channel.
  • the endoscope of the exemplary embodiments explained above can be designed as a flexible endoscope for the intestinal tract.
  • the endoscope has an operating part and an insertion section.
  • the operating part is located on the proximal side and the insertion section is located on the distal side of the endoscope.
  • the control panel (not shown in the drawings) includes an operating lever (such as a joystick or a simple lever rod) for actuating the pivotable working channel member, a working channel inlet, and a knob for bending an angled portion of the endoscope.
  • the operating part is connected to a video processor, a light source device and a display device, and the like.
  • the insertion section is a long tube-like element. The proximal end of the insertion section is connected to the control panel.
  • the insertion portion has a flexible portion, the angled portion and a cap in this order from the operating portion.
  • the flexible section is elastic.
  • the angled portion is angled in response to an actuation of the adjusting knob.
  • a rigid end piece portion is formed at the distal end of the Abwinklungsabiteses.
  • the rigid end piece section forms the so-called endoscope head.
  • the cap covers the endoscope head from the distal side of the endoscope head.
  • the cap is in the form of a bottomed cylinder having an opening on the side where the cap covers the endoscope head.
  • the cap can be easily pushed onto the endoscope head.
  • the cap is made of plastic, for example.
  • the cap is made of plastic, for example by means of 3D printer or injection molding.
  • 3D printers or injection molding By manufacturing using 3D printers or injection molding, the cap can be manufactured accurately but still at low cost. Other suitable manufacturing methods can be adopted, as long as they allow accurate and cost-effective production.
  • the pivotable working channel element is actuated by means of the actuating lever on the proximal side of the endoscope.
  • the cable connects the operating lever and the pivotable working channel element.
  • the cable is guided inside the endoscope, ie within the operating part and the insertion section.
  • the cable channel is provided for guiding the last section of the cable, as shown for example in FIGS. 4 to 6.
  • the cable between outer tube 32 and inner tube 34 and in a bore of the distal ring member 33 is arranged.
  • the End of the cable is inserted in the bore of the distal ring member 33.
  • the end of the cable is sealed in the bore of the distal ring member 33 by, as explained above z. B. formed as a nipple or as a diameter extension of the cable 7 and in the bore on the distal ring member 33 z. B.
  • the cable duct is sealed, the cable is completely sealed from the environment.
  • the sealing of the cable duct and the cable is waterproof.
  • the cap is completely independent of the cable.

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  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Biophysics (AREA)
  • Medical Informatics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Optics & Photonics (AREA)
  • Pathology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Veterinary Medicine (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Physics & Mathematics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Manufacturing & Machinery (AREA)
  • Endoscopes (AREA)
  • Instruments For Viewing The Inside Of Hollow Bodies (AREA)

Abstract

L'invention concerne une tête d'endoscope (1) comportant un corps de tête d'endoscope (11A, 11B), dans lequel est formé au moins un canal de travail (13), un élément de canal de travail (30) pouvant pivoter étant placé sur la partie d'extrémité de canal de travail distale. L'élément de canal de travail (30) est agencé de manière à pouvoir pivoter par rapport au corps de tête d'endoscope (11A, 11B).
PCT/EP2016/068661 2015-08-07 2016-08-04 Tête d'endoscope, endoscope, capuchon et procédé de formation d'un capuchon WO2017025434A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201680033002.8A CN108064145B (zh) 2015-08-07 2016-08-04 内窥镜、盖子以及盖子形成方法
JP2017551154A JP6811720B2 (ja) 2015-08-07 2016-08-04 内視鏡、内視鏡用キャップ及び内視鏡用キャップ形成方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015113018.1A DE102015113018A1 (de) 2015-08-07 2015-08-07 Endoskopkopf
DE102015113018.1 2015-08-07

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WO2017025434A1 true WO2017025434A1 (fr) 2017-02-16

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PCT/EP2016/068661 WO2017025434A1 (fr) 2015-08-07 2016-08-04 Tête d'endoscope, endoscope, capuchon et procédé de formation d'un capuchon

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JP (1) JP6811720B2 (fr)
CN (1) CN108064145B (fr)
DE (1) DE102015113018A1 (fr)
WO (1) WO2017025434A1 (fr)

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CN113413116A (zh) * 2021-05-17 2021-09-21 杭州莱恩瑟特医疗技术有限公司 保护罩、前端部及电子内窥镜

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DE102018110624A1 (de) 2018-05-03 2019-11-07 Konstantin Bob Endoskop mit ausfahrbarem Arbeitskanal
CN110840377A (zh) * 2019-12-05 2020-02-28 岱川医疗(深圳)有限责任公司 内窥镜及其插入头端
KR102407163B1 (ko) * 2020-06-11 2022-06-13 연세대학교 산학협력단 생부착 방지 코팅된 내시경 캡
KR20240036901A (ko) * 2022-09-14 2024-03-21 주식회사 엔도로보틱스 내시경용 보조캡
WO2024064257A1 (fr) * 2022-09-22 2024-03-28 Boston Scientific Scimed, Inc. Composants de dispositif médical, ensembles et procédés associés

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JP2018517442A (ja) 2018-07-05
DE102015113018A1 (de) 2017-02-09
CN108064145A (zh) 2018-05-22
CN108064145B (zh) 2021-06-11
JP6811720B2 (ja) 2021-01-13

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