DE1936613U - ENDOSCOPE. - Google Patents

Description

.08Ί7ΊΜ5.2.66

Dr. Hugo Wildcen 24 Patent attorney long-distance: Lobeck (0451) 75B88 Curau (04505) 210 (private)

Announcer:

Richard Wolf G.mobcH ,, 7134 Knittlingen, Schillerstr, 2

E rxdoscope

The innovation relates to an endoscope, in which between a proximal rotating part serving as a handle with Eyepiece and a distal, lens-receiving mount, a fiber image conductor surrounded by a flexible jacket tube runs, around which a longitudinal fiber light guide is wrapped, which is distal between the lens mount and -the outer envelope-

hose is cemented and proximal toBamgiengefςιβΐ to Sin's /

radiate the light of a projector from the hand.1ia.tfe 'is led out at the side ₀ Such ^ ndoscopes have the advantage that they * "over the entire length between the ocular part and the objective ^.?' Version are flexible and that the light and the illuminated image can also be transmitted over any curvature.

On the other hand, it is known to use flexible lenses endoscopes equipped for image transmission through a surrounding tube that increases the diameter or running several wires that connect to the distal end of the device are connected and are connected proximally to a drive in order to thereby insert the distal end of the endoscope into a To be able to control the body cavity at will. The body cavity is generally illuminated by a distal arranged lamp. - 2 -

The aim of the innovation is, in particular, the endoscopes mentioned at the beginning. G-astroscopes or choledochoscopes with fiber image guides and surrounding fiber ^{optics can be controlled as required when inserting into the stomach or g} holedochus without influencing the diameter of the device «

Accordingly, the innovation is that in the aforementioned endoscope through the entire length of the Fiber optic a pull wire runs, which with the distally rigidly combined part of the - ^ ildleiters and proximally in the Area of the handle is connected to a drive, so that thereby the distal end of the device in one way or the other Direction to the axis can be curved and curvatures in other directions by rotating the device around the -'- longitudinal axis are adjustable, This is the diameter of the device

not affected, as the pull wire runs through the entire length of the fiber optic cable «, ..« *

The innovation is now based on an embodiment>? a Choledochoskopes explained according to the drawing, namely show:

Pig »1 shows a side view of a choledochoscope the innovation,

5 ¹ ₀ 2 Ig is an enlarged longitudinal section through the distal E _n of the device to de - & ^l ig. 1,

Fig "3 shows a cross section along line III-III of the ^ ig» 2 » The choledochoscope according to the exemplary embodiment consists of a Piberbildleiter 1, which is supported by a sleeve 2 advantageously surrounded by sterilizable plastic and pushed distally over the one ^ end of a short rotating part 3, in

- 3 -

which the fiber image bundle is cemented to the distal ^ walls, wherein the fiber bundle at the free image ^E is planigeschliffen walls. The fiber image guide 1 is preceded by an objective 4 with a fitting 5, which is pushed over the distal end of the rotating part 5 8 is bordered, this fiber light guide for the straight view terminates approximately with the lens 4 and is also ground flat at the distal end. This overlight guide is between the lens mount 5 and. a short rotating part 9 cemented, and the outer jacket tube 8 is pushed onto the rotating part 9 and glued.

The fiber image guide runs proximally through a rotating part 10, which also serves as a handle, up to an eyepiece in one Eyepiece funnel 11. Instead of the eyepiece funnel 11 "1" S ^ - es possible to arrange eyepiece funnels with other eyepieces, etc.

i ³ "- ■ a camera vorauschalten if the illuminated body to be _ ,. y cave image photographed, filmed or transmitted to a television screen, the buffer tube 8 can, as is apparent from Fig ₀ 1, in addition to about half the length. a stiffening spring 12, the transition being made by a short rotating part 13. Instead of the stiffening spring 12, an additional hose for reinforcement could also be provided over the half-length mentioned, whereby this hose can also be provided with a spring insert »

The fiber light guide 6 runs through a partial length proximally the handle 10 and is laterally combined by a connecting piece 14 out of the handle 10, this

Nozzle H can be provided with a coupling in order to connect a flexible light guide here, to which the light from a projection lamp is fed.

According to the innovation, a pull wire 15 is now attached to the distal rotating part 3 or the lens mount 5, which advantageously has a flattened profile, e.g. in ^ orm a leaf spring, and this pull wire 15 runs over the entire length of the flexible part through the light guide 6 surrounding the Bjj ^ ieiter and is connected within the handle 10 to a drive consisting of a drive wheel 16 arranged on one or both sides the rotation of which a small pull rod can be adjusted in the longitudinal direction of the device, with which the pull wire 15 is soldered. Ass by actuating the drive wheel 16, it is possible to the distal end, such as Z ₀ -B ₀ indicated by 8a ^A, arbitrarily curved in ^ one or entgegengesetz'ie ^ älichtung to control "If other directions are driven ^" so can the entire Device rotated around its longitudinal axis accordingly and, .. »■" then again the '!' Rubbed 16 can be bent by exerting a pull or pressure ,,

According to the embodiment the pull wire is 15 to the longitudinal axis with respect to a thin plastic tube 17, which is likewise laid over the entire length by the surrounding light guide 15 and at the distal ^E xit is open., This thin tube 17 is laterally in the region of the handle 10 by a Nozzle 18 led out, to which a hose for rinsing the body cavity by means of an irrigator can be connected or to which a hose can be connected which leads to an air pump when the device is used as a gastroscope to thereby

To inflate the stomach or to rinse if the device is used as a choledochoscope "Is used" It is of course possible, instead of the thin tube 17, to use a tube channel for introducing Provide instruments in the body cavity, the flushing channel then being provided on the right or left side of the hose 17 and all tubes run through the entire length of the fiber optic cable again.

Claims (2)

RA.08W4M & 2.66 protection claims 1. Endoscope, in which between a proximal rotating part with an eyepiece and an aestal mount that accommodates the objective, a fiber image guide surrounded by a flexible tube runs around which a longitudinal 3-light guide is placed, which is placed distally between the objective mount and the outer tube is cemented and is brought together proximally for the irradiation of the light of a projector from the handle laterally? characterized in that a pull wire (15) or the like through the entire length of the fiber light guide (6). runs, the ieb with the distal rigid composite sub-image of the conductor (1) and in the region proximal to the handle (1O) with a ^Tr's _{connectedness:} ^ st <, 2. Device nach.-claim 1, characterized in that _f of the fiber image conductor (1) distal cemented in a short ^ earpiece (>) a-- _x, on the one hand the distal Hüllschlauchende.? ■ ·? of the image guide and on the other hand the lens mount (5) is pushed on, and that this fit is connected to the distal end of the advantageously flattened puller wire (15), which runs through the light guide (6) surrounding the image guide, the fibers of which are between the sleeve tube ( 2) of the image guide and a sheath tube (8) of the light guide (6) are distributed, this latter sheath tube being pushed and glued distally onto a short rotating part (9), between which and the eyepiece mount (5) the distal end of the fiber light guide is cemented » 3c device after. Claims 1 and 2, characterized in that diametrically opposite the puller wire (15), a thin, distally open tube (17) runs through the S'iber light guide (6), which is proximally in the area of the handle (10) via a lateral connector (18 ) to an air pump, an irrigator ododgl ₀ can be connected "