US1688295A

US1688295A - Cystoscope

Info

Publication number: US1688295A
Application number: US240552A
Authority: US
Inventors: Maijgren Thorvald
Original assignee: Individual
Current assignee: Individual
Priority date: 1927-12-16
Filing date: 1927-12-16
Publication date: 1928-10-16
Anticipated expiration: 1945-10-16

Description

oct. 16, 192s; 1,688,295

` v T. MAIJGREN cYs'roscoPE Filed Dec. 16, 192'? Patented ct. 16, 1928.

y `'UNITED STATES THORVALD'MAJGREN, OF ROCHESTER, NEW YORK.

cYsrioscorn.

Application filed December 16, 192'?. Serial No. 240,552.

The present invention relates to cystoscopes and more particularly to devices of this character which arev designed to serve a variety of purposes while inserted in place within the body of a patient, one object of the invention being tol provide an apparatus of this nature having a simple and effective means for eonnectingvarious operating instruments thereto. Another object is` the provision of such an apparatus whichfwill permit relatively rapid and precise interchange of operating instruments with a minimum amount of disturbance and pain to the patient. f A further object is the provision of simple and effective means for rendering the` cystoscope fluid tight when an operating instrument has been inserted therein.

To these and other ends the invention re-` sides in certain improvements and combinations of parts, all as will be hereinafter more.v

fully described, the novel features being pointed out in the claims at the end of the specification.

In the drawings: Y Y o Fig. 1 -is an elevation of a cystoscope em bodying the present invention;

Fig. 2 is a fragmentary detail viewfof the lower end of the `device with certain Vparts shown in section to illustrate an instrument such as a catheter, in place therein;

Fig. 3 is a fragmentary sectionalk detail showing a portion of the parts shown in Fig. 3 but on a larger scale;

Fig. l is a detail of the lower endof the cystoscope showingl the arrangement of the threaded section thereon; and c Fig. 5 is a horizontal section taken substantially on line 5 5 ofFig. 2.. y i

Similar reference numerals throughout the several views indicate the same parts.

The present embodiment of the invention provides a device of the class described de signed for easy and effective interchangeability of operating` instruments therein to insure fiuid tight connections for the parts and at the same time substantially minimizing the shock and pain usually attending the interchangingv operation. To this end the invention `as disclosed is embodied, in a cystoscope or similar instrument, the lcasing of which has a fitting at ther end thereofto which various instruments such as catheters,

lithotr'ites, stone searchers,'etc., after insertion therethrough, maybe connected inaA ready, secure and safe manner.

Referring more particularly tol the draw-` form for assisting the penetration of the device within a natural orifice of the body, such as the urethra, in cases of stricture of such orifice. rl`he upper end of` the tubular 'casing 10 of the device is provided witha suitable fenestral opening 13 to permit egressof an operating instrument into a body cavity, suoliy as the bladder, ina manner which is well known to persons skilled in the art. I

The lower end of the tubular casing 10 is provided with means for securing an operat-V ing instrument thereto'so as to provide a fluid tight joint, while at the same time making possible the removal of one Vinstrument kand the insertion and connectionof another while the device is in the patients body Without shock or jar andthe accompanying pain and discomfort to thepatient. For this purpose, in the present embodiment of the invention, there is provided at the lower or outer lend of the casing 10, an enlarged tubular portionlll having a bore 15 which is of a size tosnugly lit a plug part 16 of the catheter 11 and similar plug parts on other instruments to be used with the device. ,y

In order to insure the `proper positioning of the instrument inserted in the cystoscope, suitable means are provided for guiding the plug 16 within the bore 15 and for preventing its turning therein. In the kpresent instance this `function is effected by providing an axially ,disposed rib 17 lon the plug 16 which cooperates with a similarly shaped depressionV in the inner `wall of the bore 15.

Suitable means are provided for clamping the catheter or other Vinstrument in fixed relation to the cystoscope nthe present instancey the tubular portion 14 of the device is provided with an outer threaded part 1S near its open end with which a similarly threaded `lating certain moving parts of the 'device in a mannerwhich is generally understood.

Meansare provided for-holding the nut 19 in permanent relation to the catheter.Y In the present instance, the plug portion on the catheter isconstructed with a collar 26 -havilnr a 'concentric iro`ectino'v aortion 27 thereon ofsmaller diameter than the collar s and yof a size tofit accurately within an in- 330, Athe heads of which lie flush within the upper. portion of the retaining ring. i

wardly pi-'ojecting'iiange'or .collar 28 on the nut 19 soas to center the-nut properly with relation to the plug portion 16. A retaining ring 29-is provided in the' present instance foruengaging the flange or collar 28 to prevent its movement-away from thecentering portion 27. rlhis retaining` ring is suitably securedto the collar 26 by means of a plurality of countersunk-head machine screws In order to insure a fluid tight connection between the parts, `a suitable sealing means, such as a gasket 31, is provided between the retaining ring 29 and 'the end surface of the tubular portion let ofthe casing. -This gasketfmay be of any desired compositiongsuch as fibre or rubber and is preferably held more or less permanently-fon the retaining ring as bymeans of a flange portion 32 projecting u wkardi around the ed'e of said rin and engaging the outer edge of the gasket 31.

The flange 32 thus serves to retain the gasket f on the ring 29and further tends to prevent undue spreading of the gasket `due to anyy pressure kexerted thereon, in connectingl the catheter with the cystoscope. vThe space'between the retaining ring 29 and the collar 26 is made somewhat greater than the thickness of the vflange 28 on the nut toallow for a certain amount of freedomfor 'axial movement ofthe nut19 relatively to the plugl portion 16. vThis also allows for aslight amount of rocking movement of the nut-19 to further facilitate starting of itsthreads 1 upon thev threaded part 18. Y Y s Y j The nut 19 is preferably provided with a plurality of depressions' around lits peripheryto facilitate holding and turning the nut with theflingers. y

It will be lunderstood that other instruments r which are to be used with the cys'toscope will be provided with the same form of,

" f connection with the catheter sothat they will A. all be readilyinterchangeable;

attaching means las'has been illustrated in In the use of the' device in diagnosis and shocks or jars. f

and lens system of thecystoscope, if it isdesired to use anfinstrument for further diagnosis or treatment of the parts, the lens system is removed by carefully unscrewing the nut 19 from the threaded part 18 and with-V drawing the plug portion 16 from the bore 15 of the tubular end 14. In practice'the attendant grasps the tubular end 14; with one hand ,to hold `it steady and unscrews the nut with the other hand. In this way the instru- 'n ment may be `removed without causing painy to the patient. The next instrument is iuserted and connected inl place by rst inserting the plug portion 16 a short distance into thebore l5 until the'nut isin a position to engage the first thread on the tubularend v14C,

the nut-is then turnedvr with one hand while until the gasket comes" into contact therewith. rlhe device is then in readiness for the next operation. It is thus possible to substitute one instrument for another while the cystoscope is in place, in a manner which is'eX- tremely gentle and avoidsv all undesirable The present invention thus affords a safe, precise and relatively rapid means for interchanging the various instruments used with a cystosco'pe and at the same time insures a gentle rand practically painless manipulation of4 the instruments without the removal of the cystoscope from the patient and thus greatly :reduces the hazards attending the operation as well-as facilitating the diagnosis and operation as a Whole'.

Y I claim as my invention:

1. In a'surgical instrument, a tube adapted for insertion within a body orifice, an instrument adapted for insertion within said tube,

tion on said tube vhavinga bore of asize to fitsaid plugportion, 'one 'of said portions having threads eXteriorly thereof and the other. of said portions having a clamping nut associated therewith forA engagement with said threads whereby said instrument is secured within said tube; A j 2. InV a surgical' instrument, a tube adapted for insertion within a body orifice, an instrument adapted for insertion within said-tube, a plug portion on saidinstrumenaa portion on saidv tube, having a bore ofa size'to lit said plug portion, and cooperating means on. said` plug portion and the inner surface of said bore for preventing turning ofthe plug therein, one of said portions having'threadsy eXteriorly thereof and the other of said portions having wherebysysaid instrument is secured Within said tube.

loo

ya plug portion on said instrument, and a pora clamping nut associatedthere-c l 4 with for engagement with said threads `3. In a surgical instrument, a tube adapted for insertion Within a body orifice, an instrument' adapted for insertion Within said tube, a plug portion on said instrument fitting Within the end of said tube, a clamping nut on said plug portion, threads on said tube for engagement With said nut, a retaining member for holding said nut on said plug portion, and sealing means between said retaining member and the end of said tube whereby a fluid tight joint is provided when the` clamping nut is screwed upon said threads. j

4L. In a surgical instrument, a tube adapted for insertion Within a body orice, an instrument adapted for insertion Within said tube,

a plug portion on said `instrumentfitting Within theend of said tube, a collar on said plug portion, a clamping nut having an inwardly extending iange bearing against said collar to limit axial movement of the nut on ysaid plug in one direction, a centering projection adjacent said collar iitting Within the inwardly projecting flange on said nut to center the same relatively to said plug, a retaining ring adjacent said centering projection for engagement with the ilange on said nut THORVALD MAIJGREN.