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Publication numberUS781763 A
Publication typeGrant
Publication dateFeb 7, 1905
Filing dateMar 7, 1904
Priority dateMar 7, 1904
Publication numberUS 781763 A, US 781763A, US-A-781763, US781763 A, US781763A
InventorsJames J Bowker
Original AssigneeJames J Bowker
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 781763 A
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Description  (OCR text may contain errors)

PATENTED FEB. '7, 1905.





UNITED STATES Patented February '7, 1905.


SPECIFICATION forming part of Letters Patent No. 781,763, dated February '7, 1905.

Application iled March 7, 1904. Serial No. 197,059.

.To rt// whom, [t n1/ty emmer/t:

Be it known that l, Janes J. Bowman, a citizen of the United States, residingat Laotto,in the county of Noble and State of Indiana, have invented a new and useful Improvement in Drainage-'.lubes, of which the following, together with the preferable construction ofthe tube itself, is a specification.

A\Iy invention relates to improvements in d rainage-tubes of a purely medical class, which are designed to remain in place, so that eli'ete and noxious matters may continually pass out of the cavity, the drainage of which is desired.

'lhe objects of my improvement are as follows: First, to provide a drainage-tube with integral arms extending from its inner end, said arms being capable of adjustment within a cavity in such a manner as to hold the tube in position for an indefinite time; second, to provide a smooth attachment to a drainagetube, which will make it possible to easily introduce the tube without irritation to the walls of the cavity; third, to provide a means of securing the tube to the instrument used for its introduction while that operation is being accomplished.

Figure l is a front view of my device with the arms in position for the insertion of the tube into the cavity which it is desirable to drain. Fig. 2 is a front view of my device as it would appear after itsintroduction into the cavity had been accomplished.

The drawings are made double size in order that the construction can be shown to better advantage.

Similar numerals of reference designate similar parts throughout both views.

rIhe tube l is metallic, preferably of aluminium, and of any suitable dimensions, usually about one-fourth of an inch in diameter and long enough to project outside the cavityinto which it has been introduced. The upper part of the tube I is provided with arms 2, which are preferably made integral with the tube and tapering Vfrom it. The arms are thin, narrow, and of suflicient compliance to be easily bent into place. This will more fully appear in the description of the mode of operation. The upper ends of the arms 2, havingI been tlattened into disk form, are attached to and separated by a flattened ball with a downward projection T. The attachment is preferably made by a rivet l). In process of riveting the enlarged disk-like ends of the arms 2 are compressed around the flattened ball in such a manner that the entire mass forms the rounded ball S with the downward projection 7. 'lhe ball Si providesl the smooth attachment to a drainage-tube which makesit possible to introduce thc tube without irritation to the walls of the cavity,77 while the downward projection T provides a means of securing the tube to the instrument used in its introduction while that operation is being accom plished.

The preferable mode of operation is as lollows: The device is closed as shown in Fig. I. The instrument designed to accomplish the introduction of the tube into the cavity is passed up through the tube and engages it at the projection T. The tube having been placed on the instrument used for its introduction and being' l'irmly held to it by the projection 7 is now pushed as Vfar within the cavity as desired and the arms spread as follows: By means of a plunger which is within the instrument used for introduction lateral pressure is exerted at the middle points of the arms 2,which beingcompliant bend outward easily. 'lhe ball 8 is thus depressed and the arms 2 extended until they respectively assume the position desired. This position would. with perhaps some slight variation, coincide with the outline of the device in place as shown in Fig.

From the mode of operation the two lastnamed functions of my device will be evidentvf. a., the ball 8 thus provides a smooth attachment at the end of the tube, which enables the operator to introduce it into the cavity without irritation, and the projection T thus engages the instrument used for introduction, holds the tube firmly in position during the operation, and by keepingthe ballS in line of the longitudinal diameter of the tube insures an equal lateraldistention of the arms 2.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

l. A drainage-tube consisting of the tube of any suitable length, as 1, provided with arms 2 connected to said tube at its inner end preferably integrally, and tapering from it, said arms 2 being thin and pliant, and Whose loose ends, having beenflattened into disk form, are riveted to a attened ball With a downward projection 7, forming with it the rounded ball 8, With the downward projection 7.

2. In a drainage-tube of any suitable length, as l, provided with arms extendingvfrom the inner end thereof, said arms being pliant in a degree that Will adapt them to be spread apart into a position such as will retain the tube'in place Within the cavity into Which it has been introduced.

3. In adrainage-tube oi' any suitable length,

February, 1904.

JAMES J. BOVVKER. l/Vitnesses:


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3692029 *May 3, 1971Sep 19, 1972Adair Edwin LloydRetention catheter and suprapubic shunt
US4781704 *Feb 24, 1987Nov 1, 1988Entech, Inc.Feeding tube assembly with collapsible outlet connector
US5203773 *Oct 18, 1991Apr 20, 1993United States Surgical CorporationTissue gripping apparatus for use with a cannula or trocar assembly
US5248302 *Aug 5, 1992Sep 28, 1993Biosearch Medical Products Inc.Percutaneous obturatable internal anchoring device
US5387196 *May 19, 1992Feb 7, 1995United States Surgical CorporationCannula assembly having conductive cannula
US5618309 *Nov 10, 1994Apr 8, 1997Green; David T.Cannula assembly having conductive cannula
Cooperative ClassificationA61M25/04