Classifications

• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
  • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
  • A61B1/00064—Constructional details of the endoscope body
  • A61B1/00066—Proximal part of endoscope body, 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
  • A61B1/00131—Accessories for endoscopes
  • A61B1/0014—Fastening element for attaching accessories to the outside of an endoscope, e.g. clips, clamps or bands
• • 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
  • A61B1/00066—Proximal part of endoscope body, e.g. handles
  • A61B1/00068—Valve switch 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
  • A61B1/00064—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
  • A61B1/00094—Suction openings
• • 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
  • A61B1/00103—Constructional details of the endoscope body designed for single 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
  • A61B1/00064—Constructional details of the endoscope body
  • A61B1/00105—Constructional details of the endoscope body characterised by modular construction
• • 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
  • 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

Definitions

• the present invention relates to an endoscope with a working channel in an insertion tube, and a control body, to the distal side of which the insertion tube is connected.
• the insertion tube is inserted into a patient for the purpose of an examination or a surgical procedure.
• instruments can be guided through the insertion tube to a location where the examination or the surgical procedure is to take place.
• the insertion tube is withdrawn.
• the endoscope is then cleaned and sterilized in order to be ready for reuse. By cleaning and sterilizing, contamination due to previous use should be removed.
• the invention relates to an endoscope with a working channel in an insertion hose, a control body, on the distal side of which the insertion hose is closed, and an attachment body that can be releasably attached to the control body, the releasably attachable attachment body having a working channel assembly and a suction device assembly.
• the working channel assembly and the suction device assembly can be removed from the endoscope by releasably detaching the fastenigbai from the control body.
• the working channel assembly and the suction device assembly are particularly difficult to clean after use, so that, despite cleaning and sterilization, biofilms could form and stick to the surfaces.
• precisely those elements on which there is an increased risk of the formation of biofilms on the surfaces due to use in the patient are removed from the endoscope ent.
• the endoscope can thus better avoid the transmission of germs that originate from resisten biofilms.
• the working channel assembly can have the working channel that extends to the distal end of the endoscope.
• the suction device assembly can have a suction line and a suction control valve provided on the suction line.
• the working channel, the suction line and the suction control valve provided on the suction line can also be removed from the endoscope.
• the releasably attachable attachment body can have an instrument inlet section which forms an externally accessible input section of the working channel.
• the instrument inlet section can also be removed from the endoscope.
• the endoscope can comprise the attachment body releasably attachable to the control body and an endoscope tube with the control body to which the releasably attachable attachment body can be attached, the endoscope tube not having the working channel assembly and the suction device assembly.
• the detachably attachable attachment body can be designed as a single-use body that can be disposed of after use.
• the Endoskoprohkör can be designed as a reusable body that can be cleaned and reused after use.
• the clear separation ensures that the endoscope can be used safely.
• the endoscope body as a reusable body contains the electronic components of the endoscope.
• the disposable body designed as an attachment body can be produced inexpensively, since it only has a detachable housing section, the working channel assembly and the suction device assembly and does not have the more expensive electronic components.
• the control body can have an incomplete housing that can be completed by a completion component that is integrated in the releasably attachable to bring body.
• the construction and the separation of the incomplete housing and the completion component are simple and straightforward. The assembly and separation of the incomplete housing and completion component can be carried out quickly and safely.
• the control body can have a housing base element as an incomplete housing, which forms the control body by being completed with a housing addition section as a completion component, the housing addition section being arranged on the detachably attachable attachment body and having the suction control valve.
• the housing in particular, as the component group that the user handles, provides reliable information as to whether the attachment body has already been mounted on the endoscope or not. The user can see immediately whether the control body is complete or not. Inadvertent use of an endoscope that has not yet been equipped with the attachment body is recognized immediately and can be avoided.
• the suction line can have a proximal suction line section, which can be connected to a suction source, and a distal suction line section, which extends to the distal end of the endoscope.
• the suction control valve can be arranged between the proximal suction line section and the dis processing section.
• the incomplete housing of the control body can have a groove running perpendicular to the direction of extension of the control body, into which a section of the completion component of the attachment body can be inserted.
• the completion component can easily, simply and clearly verifiable and, moreover, be placed quickly and easily on the incomplete housing of the control body in order to complete the endoscope.
• the incomplete housing of the control body and / or the attachment body can have snap-in fastening means for attaching the attachment body to the incomplete housing of the control body.
• the completion component can be safely assigned to the incomplete housing of the control body. Accidental unintentional loosening of the completion component from the incomplete housing of the control body is avoided by the snap-in fastening means.
• the working channel assembly and the suction device assembly of the attachable mounting body ble can be releasably attached in the control body. If the working channel assembly and the suction device assembly are releasably fastened in the control body, they cannot be accessed from the outside.
• the wall of the control body hides the working channel assembly and the suction device assembly.
• the wall concealing the working channel assembly and the suction device assembly can be part of the attachable mounting body. Alternatively, the wall concealing the working channel assembly and the suction device assembly can be separate from the attachable attachment body.
• drawing 1 shows a schematic perspective view of an endoscope according to the invention with a control body in a first exemplary embodiment.
• Fig. 2 shows a schematic perspective view of the endoscope according to the invention of the first embodiment, wherein an attachment body is not placed on an incomplete Ge housing of the control body.
• Fig. 3 shows a schematic perspective view of a central section of the attachment body of the first embodiment.
• FIG 4 shows a schematic perspective view of the endoscope according to the invention of the first exemplary embodiment, the attachment body being placed on the incomplete housing of the control body.
• Fig. 5 shows a schematic sectional view of the control body of the first exemplary embodiment.
• FIG. 6 shows a schematic sectional view of the distal end of the endoscope of the first exemplary embodiment.
• FIG. 7 shows a schematic sectional view of the distal end of an endoscope of a second exemplary embodiment.
• FIG. 8 shows a schematic sectional view of the distal end of an endoscope of a third exemplary embodiment.
• An endoscope 1 has a control body 10, an insertion tube 20, and a supply cable 30.
• the insertion tube 20 is connected to the control body 10 on the distal side of the control body 10.
• a distal end section 40 is arranged on the distal side of the insertion tube 20. With the distal end portion 40 first, the insertion tube 20 is inserted into a patient for the purpose of an examination or an operative intervention.
• a working channel described below, extends in the insertion tube 20 to the distal end section 40.
• the supply cable 30 is connected to the control body 10 on the proximal side of the control body 10.
• the supply cable 30 comprises an electrical cal line for supplying the control body 10 with electricity.
• the supply cable 30 also includes a signal cable which transmits data obtained from the endoscope to an evaluation unit (not shown).
• the supply cable 30 has a plug which is plugged into the evaluation unit on the proximal side of the supply cable 30.
• the control body 10 has an incomplete housing 150 as a housing base element, which only forms a complete housing by placing a completion component 105.
• the completion component 105 acts as a supplementary housing section to complete the housing of the control body 10.
• the complete housing of the control body 10 is ergonomically shaped and designed so that - viewed in the direction of extension - it has a grip area 12 that can be enclosed by hand in the central area. The user grasps the grip area 12 in order to use the endoscope.
• the grip area 12 extends over the incomplete housing 150 and the completion component 105, as shown in FIG.
• the control body 10 has a front side on which a suction valve, a water-air valve 152, control buttons 153 and 154 and an instrument inlet section 120, which forms an externally accessible input section of the working channel, are arranged, see FIG. 1.
• the suction control valve 110 and the instrument inlet section 120 are arranged on the completion member 105.
• the water-air valve 152 and the control buttons 153 and 154 are arranged on the incomplete housing 150.
• the water-air valve 152 is used to switch on / off the air and / or water supply from a supply source, not shown, and controls, for example, the flushing with water at the distal end.
• the air and / or water supply and the water-air valve 152 can be used as in conventional endoscopes.
• the control buttons 153 and 154 are freely assignable and can be, for example, control buttons with processor functions, such as a button for taking a screenshot of a scene observed by a camera at the distal end, a button for zooming an image of the scene observed by the camera displayed on a monitor and the same.
• a steering wheel 151 is arranged on a lateral side of the incomplete housing 150 and is used, for example, to control a deflection movement of the distal section.
• the steering wheel 151 can also have other functions.
• the incomplete housing 150 is formed so that it is open on the front side. On the front side of the incomplete housing 150, the incomplete housing 150 is closed by the completion component 105.
• the incomplete housing 150 therefore has a peripheral portion on the front side, the shape of which is complementary to the shape of the peripheral portion of the complete component 105 Ver.
• the shape of the peripheral portion of the completion component 105 is adapted to the shape of the peripheral portion of the incomplete housing 150. Therefore, in the exemplary embodiment, the peripheral section of the incomplete housing 150 has a first (distal) groove 160 and a second (proximal) groove 162 First groove 160 and the second groove 162 protrudes an elevation 161 side.
• a vertical edge of the elevation 161 protrudes toward the front side.
• the vertical edges of the elevation 161 extend perpendicular to the direction of extent of the incomplete housing 150 and thus perpendicular to the direction of extent of the control body 10.
• the incomplete housing 150 also has an opening 170 for a working channel member 122 in the area exposed by the absence of the completion member 105, as will be described below.
• the opening 170 forms an entrance to a channel which extends to the distal end portion 40 and through which the working channel element 122 can be pushed.
• the incomplete housing 150 has snap-in fastening means 400 on the opening edge which is formed by the first groove 160, the protrusion 161 and the second groove 162.
• the completion component 105 is part of an attachment body 100 that is attached to the incomplete housing 150. Without this attachment body 100, the endoscope is merely an as yet incomplete endoscope raw body, which must be completed for use with the attachment body 100.
• the attachment body 100 includes the completion member 105, a work duct assembly, and an aspirator assembly.
• the working channel assembly group and the suction device assembly of the attachable attachment body 100 are releasably attached in the control body 10.
• the completion component 105 forms the supplementary housing section for completing the incomplete housing 150.
• the shape of the peripheral section of the completion component 105 is adapted to the shape of the peripheral section of the incomplete housing 150. Therefore, in the embodiment, the peripheral portion of the completion member 105 has a first (distal) protrusion 130 and a second (distal)
• a recess 131 is formed between the first protrusion 130 and the second protrusion 132.
• the protrusion 161 of the incomplete housing 150 fits into the recess 131.
• a vertical edge of the recess 131 extends at the edges of the first protrusion 130 and the second protrusion 132.
• the vertical edges of the recess 131 extend perpendicular to the direction in which the completion component 105 extends.
• the completion component 105 has counterparts to the Einrastbefesti supply means 400 at the opening edge, which is formed by the first projection 130, the recess 131 and the second projection 132. Due to the snap fastener 400 on the incomplete housing 150, the completion component 105 can snap into place on the incomplete housing 150.
• the type of snap-in fastening means 400 can be selected freely.
• a snap-in connection in the form of a barbed hook, for example, can be selected as the snap-in fastening means 400, which engage in corresponding openings as counterparts on the completion component 105.
• Any snap-fit fasteners 400 can be used.
• the instrument inlet section 120 is arranged on the front side of the completion component 105.
• the instrument inlet section 120 is part of the working channel assembly.
• the working channel assembly includes a working channel member 122.
• the working channel element 122 When the working channel element 122 is completely inserted into the insertion tube 20, the working channel element 122 extends to the distal end of the endoscope 1.
• the working channel element 122 is hose-like and forms a channel enclosed by a jacket, which serves as a working channel through which instruments can be guided to the distal end of the working channel element 122. That The proximal end of the working channel element 122 is formed by the instruction section 120.
• the instrument inlet section 120 has a rubber seal on its inner circumference.
• the outer diameter of the working channel element 122 is selected such that the working channel element 122 fits into the opening 170 so that the working channel element 122 can be pushed securely to the distal end of the endoscope 1.
• the suction control valve 110 On the front side of the completion member 105, the suction control valve 110 is arranged.
• the suction control valve 110 is part of the suction device assembly.
• the suction device assembly has a suction line 320.
• the suction line 320 is formed by a channel-like line which consists of a proximal suction line section 325, which can be connected to a proximal suction source (negative pressure source) (not shown), and a distal suction line section 326.
• the distal suction line section 326 extends as far as the working duct element 122 and opens into it, see FIG. 5.
• the suction control valve 110 is arranged between the proximal suction line section 325 and the distal suction line section 326. By actuating the suction control valve 110, the suction line 320 is opened or closed.
• the proximal suction line section 325 protrudes on the proximal side of the completion component 105.
• the proximal suction line section 325 has on its proximal side a connection element (not shown) which can be connected to the suction source.
• a connection element (not shown) which can be connected to the suction source.
• the attachment body 100 is on the incomplete housing 150 a
• the proximal suction line section 325 is guided on the outer edge of the incomplete housing 150 and on the supply cable 30.
• a ring element 35 is provided as a fastening means on the supply cable 30.
• the proximal suction line section 325 is pushed through the ring element 35.
• Several ring elements 35 can be provided along the supply cable 30. As a result, the proximal suction line section 325 can run parallel to and closely adjacent to the supply cable 30, see Fig.l.
• the distal suction line section 326 is integrated with the working channel element 122.
• the distal suction line section 326 and the working channel element 122 form a Y-shape.
• the working channel element 122 is divided into a proximal working channel element section 123 and a distal working channel element section 124.
• the proximal working channel element section 123 extends from the instrument inlet section 120 to the junction between the distal suction line section 326 and the working channel element 122.
• the distal working channel element section 124 extends from the junction between the distal suction line section 326 and the working channel element 122 to the distal end of the endoscope.
• the distal working channel element section 124 is completely inserted through the opening 170 into the insertion tube 20, the distal suction line section 326 extending to the distal end of the endoscope 1.
• the working channel element 122 is pushed into the opening 170.
• the suction line 320 opens into the working channel element 122.
• the endoscope 1 has a continuous channel element from the suction source to the distal end of the working channel. Lateral access to this channel element is provided on the completion component 105. The access has the instrument inlet section 120 as an inlet and opens into the channel element. At the distal end portion 40 of the endoscope 1 is the working
• Distal working channel element section 124 that jointly forms suction channel is open.
• FIG. 6 shows schematically the transition from the insertion tube 20 to the distal end section 40 as a basic illustration.
• the invention is not restricted to this illustration.
• the distal end portion 40 can have various elements, not shown, such as a lighting, a camera, a rinsing nozzle, etc.
• the distal end section 40 has an opening 42 on the distal side.
• the distal working channel section 44 of the working channel is provided.
• the distal working channel section 44 has a section 43 with a reduced diameter.
• the distal Schwarzkanalab section 44 forms a shoulder surface 46 extending outward from the section 43 with a reduced diameter.
• the inner diameter of the section 43 with a reduced diameter corresponds to the inner diameter of the distal working channel element section 124.
• the distal working channel section 44 thus has an inner diameter that is greater than the inner diameter of the opening 42.
• the distal working channel element section 124 can thus be pushed into the distal working channel section 44 up to the shoulder surface 46.
• the distal working channel element portion 124 cannot be slid over the shoulder surface 46. In the position pushed furthest in the distal direction, the distal working channel element section 124 rests against the shoulder surface 46.
• the endoscope 1 according to the invention is thus divided into an endoscope body and the attachment body 100. All mechanical see and arranged electronic parts. In the Endoskoprohkörpe elements of the working channel assembly and the suction device assembly of the endoscope 1 are not arranged, which would have to be cleaned after the endoscope 1 has been used.
• the elements of the working channel assembly and the suction device assembly of the endoscope 1 are arranged in the attachment body 100.
• the working duct assembly and the suction device assembly are exposed to contamination when the endoscope 1 is used.
• the elements of the endoscope 1 which can be particularly heavily contaminated during use are thus accommodated in the attachment body 100.
• a new attachment body 100 is used on the endoscope body, as shown in FIG. 4.
• the proximal suction line section 325 is pushed through the ring element 35 on the supply cable 30 (see FIG. 1) and connected to the suction source.
• the working channel member 122 is pushed into the opening 170.
• the completion component 105 is placed on the incomplete housing 150 by placing the peripheral portion with the first protrusion 130, the recess 131 and the second protrusion 132 perpendicular to the peripheral portion of the incomplete housing 150 with the first groove 160, the protrusion 161 and the second groove 162 to the direction of extent of the incomplete housing 150 is pushed.
• the first protrusion 130 fits into the first groove 160.
• the recess 131 fits into the bump 161.
• the second protrusion 132 fits into the second groove 162.
• the endoscope 1 is now ready for use.
• the endoscope 1 can be inserted into the patient. Instruments can pass through the instrument inlet section 120 will be introduced. Can be aspirated via the combined working channel / Sc.
• the attachment body 100 After using the endoscope 1, the attachment body 100 is detached from the endoscope body.
• the attachment body 100 can be disposed of.
• the remaining endoscope body which has been freed from the used attachment body 100, can now be cleaned and sterilized and then dried and stored.
• the cleaned and processed endoscope raw body is provided with a new attachment body 100.
• the endoscope 1 can be divided into the endoscope tube body and the attachment body 100.
• the endoscope shell with the incomplete housing 150, the insertion tube 20 and the supply cable 30 is reusable and can be cleaned and reprocessed after use.
• the elements of the working channel assembly and the suction device assembly of the endoscope 1 are arranged in the attachment body 100. After use, the attachment body 100 can be disposed of.
• the cleaned and processed endoscope body is provided with a new attachment body 100, which can be taken ent from a sterile packaging shortly before attachment to the endoscope body.
• the working channel and the suction channel are channels in which a biofilm can form on the inner wall of the channel during use.
• a biofilm is easy to remove when reprocessing after using an endoscope. Since in the present invention precisely those sections of an endoscope on which the probability of the formation of a biofilm is given, namely the working channel and the suction channel, are placed in the attachment body 100 that can be disposed of after use, a probability of biofilm formation on the surfaces of the reusable endoscopic raw body are massively reduced. This can greatly reduce the risk of cross-contamination, in which germs from one patient to another are transferred.
• the grip area 12 extends over the incomplete housing 150 and the completion component 105, it can be safely concluded from the shape of the incomplete housing 150 that the completion component 105 is missing and the endoscope 1 is not yet complete. Incorrect use of the endoscope 1 can be avoided.
• the working channel assembly and the suction device assembly are positioned accordingly (proximal suction line section 325 to the proximal side in the ring element 35; working channel element 122 in the opening 170) and the completion component 105 is pushed onto the incomplete housing 150 and clicked.
• the endoscope 1 can be assembled quickly and easily.
• the removal of the attachment body 100 from the endoscope tube body can be carried out simply, easily and quickly.
• this one channel can have a small diameter which is suitable for the respective purpose of pushing the desired instruments through and for suctioning.
• the receiving channel 44 which is formed in the insertion tube 20 and in the distal end section 40 and has the opening 170 at the entrance, can also have a small diameter.
• the outer diameter of the insertion tube 20 and the distal Endab section can thus be made correspondingly small.
• the working channel element 122 Since the distal working channel element section 124 cannot be pushed over the shoulder surface 46 and the distal working channel element section 124 rests against the shoulder surface 46 in the position pushed furthest in the distal direction, the working channel element 122 does not come into contact with the patient during use. Only the distal end section 40 surrounding the working channel element 122 comes into contact with the patient. Thus, the working channel element 122 is better protected from contamination.
• a second embodiment will be described with reference to FIG.
• the distal area of the distal Häkananalele element section 124 has been modified.
• the rest of the structure is the same as in the first embodiment.
• the distal working channel element section 124 has a distal end region 125. On the outer surface of the distal end region 125, the distal end region 125 is provided with a circumferential recess 126. The circumferential recess 126 extends along the outer circumference of the distal end region 125. On the inner surface of the distal working channel section 44, the working channel section 44 is provided with a circumferential recess 47. The surrounding recess 47 extends along the inner circumference of the distal working channel section 44.
• the circumferential recess 47 is deepened more deeply in the distal working channel section 44 than the circumferential recess 126 in the distal end region 125. In the circumferential recess 47, a holding element 48 is firmly inserted.
• the holding element 48 can be designed as a ring element.
• the retaining element 48 can be a sealing ring.
• the holding element 48 can also be a spring element or another elastic element.
• the circumferential recess 126 of the distal working channel element section 124 and the circumferential recess 47 of the distal working channel section are located 44 facing each other.
• the holding element 48 of the distal end section 40 engages in the circumferential recess 126 of the distal working channel element section 124.
• the distal working channel section 44 can snap into place on the distal end section 40.
• the distal working channel section 44 can be securely held on the distal end section 40.
• the working channel element 122 does not come into contact with the patient.
• a third embodiment is described with reference to FIG.
• the distal region of the distal Häkananalele element section 124 has been modified.
• the rest of the structure is the same as in the first embodiment.
• the distal working channel element section 124 has a distal end region 125.
• the distal end region 125 On the outer surface of the distal end region 125, the distal end region is rich 125 is provided with a conical outer surface 127.
• the conical 127 tapers in the distal direction of the distal end area 125.
• the outer diameter of the distal end area 125 thus decreases in the distal direction of the distal end area 125.
• the distal working channel section 44 On the inner surface of the distal working channel section 44, the distal working channel section 44 is provided with a conical inner surface 49 at the distal end.
• the conical inner surface 49 tapers in the distal direction of the distal working channel section 44. In other words, the inner diameter of the distal working channel section 44 decreases on the conical inner surface 49 in the distal direction of the distal working channel section 44.
• the slope of the conical inner surface 49 corresponds to the slope of the conical outer surface 127.
• the conical outer surface 127 of the distal working channel element tab section 124 rests on the conical inner surface 49 of the distal end section 40 and cannot be moved further in the distal direction.
• the distal working channel section 44 can rest on the distal end section 40 in a contact position.
• the distal working channel section 44 can be securely held on the distal end section 40.
• the working channel element 122 does not come into contact with the patient.
• a steering wheel 151 is described.
• the endoscope can have multiple control wheels for different purposes.
• the steering wheel 151 can be omitted if the invention is applied, for example, to an endoscope whose distal section cannot be deflected.
• the circumferential section of the incomplete housing 150, the first (distal) groove 160 and the second (proximal) groove 162 and the elevation 161 between the grooves 160, 162, which match the shapes designed as counterparts from the projections 130, 132 and the recess 131 of the completion member 105 are.
• the invention is not limited to this.
• the exact shape of the peripheral section of the incomplete housing 150 and its precisely fitting counter-shape on the completion component 105 can be selected as desired. The user should only be able to recognize that the housing is incomplete without the completion component 105. Furthermore, it only has to be ensured that the completion component 105 fits onto the incomplete housing 150.
• the per ximal suction line section 325 on the outside of the incomplete housing 150 extends in the proximal direction.
• a channel with a (distal) opening is provided in the incomplete housing 150 on the proximal side, which is designed similarly to the opening 170 for the proximal suction line section 325.
• This channel opens on the proximal side on the outside of the incomplete housing 150 near the connection point of the supply cable 30 on the incomplete housing 150.
• the proximal suction line section 325 can be pushed through this channel in the proximal direction, whereby it is then also parallel and tightly fitting to the Supply cable 30 can run along. This improves the visual appearance, since no section of the suction line 320 is exposed on the grip area 12 of the control body 10 itself.
• the ring element 35 is provided on the supply cable 30 as a fastening means for the proximal suction line section 325.
• any other fastening means can be used.
• a clamp, a loop or a Velcro strip can be used for this purpose.
• the working channel element 122 170 is pushed.
• the working channel element 122 is connected to the distal suction line section, so that the working channel in the working channel element 122 can also be used as a suction line.
• two tube elements (channel elements) are arranged pointing in the distal direction on the completion component 105.
• a distal suction line section and a working channel element can namely be formed as two separate tube elements which extend to the distal end of the endoscope 1.
• One of these hose elements is the working channel element of the working channel assembly.
• the other hose element is the distal suction line section.
• the distal Saug effetsab section and the working channel element are pushed into the opening 170.
• the opening 170 and its channel to the distal end have a size that allows the acquisition of the distal suction line section and the working channel element.
• the distal suction line section and the working duct element are formed as a one-piece construct.
• the distal suction line section and the working channel element form a common tube element, the interior of which is separated by a separating element into two chambers, each of which extends to the distal end of the endoscope 1.
• the one-piece construction leads to a particularly small construction, since the channel with the opening 170 in the insertion tube 20 can be correspondingly reduced.
• the common tube element can be produced by extrusion.
• the common hose element can be connected to the proximal section of the common hose element in such a way that the proximal section of the distal suction line section is connected to the suction control valve 110 and the proximal section of the working channel element is connected to the instrument inlet section 120.
• the releasably attachable attachment body 100 which has the working channel assembly and the suction device assembly, is without the completion member 105 is formed.
• This releasably fastening body can be removed through an opening on the endoscope, for example on the control body 10.
• the control body 10 then has a complete housing.
• the working channel assembly and the suction device assembly of the attachable attachment body 100 are releasably fastened in the control body 10.
• the invention is advantageously applicable to a flexible endoscope.
• the invention is advantageously applicable to a gastrointestinal endoscope.
• the principle of the invention can also be applied to any other type of endoscope.

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• Life Sciences & Earth Sciences (AREA)
• Surgery (AREA)
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