Surgery – Endoscope – With non-optical distal tip attachment
Patent
1995-07-27
1997-09-16
Apley, Richard J.
Surgery
Endoscope
With non-optical distal tip attachment
600128, 600131, 600171, A61B 100
Patent
active
056674759
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The invention relates to an endoscopic device, in particular to an instrument for endoscopic subfascial discision of perforans veins (ESDP). About 10% to 15% of the adult suffer from a distinct varix of the lower extremities, up to 16% of these patients have insufficient perforans veins. In the course of the medical treatment of a primary varix and of trophic skin disorders due to a post-thrombosis or to a varix these insufficient perforans veins are subfascially eliminated. In the course thereof the previous surgical methods require an extended uncovering of the perforans veins and very often suffered from post-surgical wound healing troubles or they are disadvantageous due to low precision.
In the course of the Minimal Invasion Surgery the endoscopic subfascial discision of perforans veins (ESDP) was developed by Dr. G. Hauer which is up to now considered as the most effective therapeutical principle. The instruments developed in connection with the aforesaid (refer to Jugenheimer, M; Junginger, Th.: PHLEBOLOGY, 4th. annual 8/92, p. 540ff.) comprises cold light operation robes of different diameter, a conventional laparoscope and accessories such as bi-polar coagulation forceps and endoscopic scissors. These standard components from different fields of endoscopy have only slightly been modified so that the instrumentation naturally shows a number of essential disadvantages. A later installed means for locking the instruments to the surgical laparoscope was not very successful in practice. A simultaneous working with the tube, the endoscope, and with the instrument just in use requires the helping hand of an assistant. For the comparatively power consuming manipulation of the tube the handle thereof is considered as being not stable enough. An essential disadvantage is the insufficient quality of the optical system of the surgical laparoscope, the low aperture of which sometimes renders the reproduction by conventional CCD--endo-cameras questionable due to the poor illumination conditions at the surgical situs (high absorption by severe bleeding). The direction of sight which usually is 5.degree. to 10.degree. with surgical laparoscopes generally does not ensure a sufficient sight of the instrument inserted. The manipulation is additionally impeded by the equipment lines for the camera, the high frequency devices, the fiber-optical illumination means, and for the coagulation gas exhaust which run in different directions relative to the axis of instrument.
SUMMARY OF THE INVENTION
It is an object of the present invention to provide an endoscopic device, particularly for the ESDP which is best suited for the medical procedure and which obviates the disadvantages of the previous devices mentioned hereinabove.
The object is realized by the features specified in the first claim.
BRIEF DESCRIPTIONS OF THE INVENTION
The invention will be explained in more detail in connection with the following example of embodiment, and wherein
FIG. 1 shows a lateral, partially sectional view of an endoscopic device according to the invention, and
FIG. 2 shows an enlarged, partially sectional, schematic view of the distal end portion of an endoscopic device according to FIG. 1.
DETAILED DESCRIPTION OF THE INVENTION
The inventional device comprises a specifically embodied surgical endoscope 1, relative to an insertable shaft 2 of which a tube 9 is lockably mounted by means of a screw 3 or any other suitable locking means. The shaft 2 of the surgical endoscope includes an optical system for image detection and transfer, fiber-optical light cables for light transmission from an external cold light source to the surgical situs, and an operation channel 4 for insertion of surgical instruments such as endoscopic knives, scissors or instruments for the surgical high frequency surgery. A handle 14 provided at the proximal end portion of the device permits operation of the device with an adequate amount of manual power. The illumination system and the optical imaging system run after a bend within t
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PHLEBOLOGIE--Neue Ergebnisse der endoskopischen subfaszialen Perforansdissektion by M. Jugenheimer et al.; Aug. 1992.
Hauer Gerald
Laser Helmut
Apley Richard J.
ETB Endoskopische Technik GmbH Berlin
Risley David R.
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