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Publication numberUS3234945 A
Publication typeGrant
Publication dateFeb 15, 1966
Filing dateDec 13, 1963
Priority dateDec 13, 1963
Publication numberUS 3234945 A, US 3234945A, US-A-3234945, US3234945 A, US3234945A
InventorsHarrison Robert R, Waldman Jr Leonard F
Original AssigneeBaxter Laboratories Inc
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Measuring and protective device for use with enema units
US 3234945 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)

1966 F. WALDMAN ETAL 3,234,945


ROBERT R. HARRISON ATTORNEY United States Patent 0 3,234,945 MEASURING AND 'PRGTECTIVE DEVICE FUR USE WITH ENEMA UNITS Leonard F. Waidman, Jr., Niles, and Robert RrHarrison,

Park Ridge, IlL, assignors to Baxter Laboratories, Inc.,

Morton Grove, 1th, a corporation of Delaware Filed Dec. 13, 1963, Ser. No. 332,331 1 Claim. (Cl. 128227) The present application is a continuation-impart of our earlier application Serial No. 199,702, filed June 4, 1962, now abandoned.

The present invention relates to a novel measuring and protective device for use with enema units.

In the past, it was customary and necessary to lubricate enema nozzles immediately prior to use. This act consisted of spreading white petrolatum, or the like, along the enema nozzle to facilitate its insertion. With the introduction of the disposable plastic enema units, which eliminated the need to Wash and sterilize reusable units, various attempts were made to effect even greater time savin s by supplying such units with prelubricated enema tips. Such attempts have been uniformly unsuccessful with the result that most of the disposable enema units still require the manual administration of lubricant prior to use.

Another unsolved problem which accompanies the use of both the conventional and the recently introduced disposable plastic enema units is that of determining depth of insertion in cases where the so-called high enema is administered. In such cases the enema tubing is inserted into the body cavity of the patient much further than in conventional practice e.g. up to and exceeding 6 inches.

It is an object of the present invention to disclose a novel device that over-comes the previously mentioned deficiencies of the prior art devices.

It is further an object to disclose a novel protective device which prevents the contamination of the enema nozzle prior to use.

These and still other objects will be apparent from the drawings and description which follows.

In the drawings:

FIGURE 1 is an elevational view of an enema unit with an embodiment of the invention in place.

FIGURE 2 is an enlarged view showing the preferred embodiment of the present invention.

FIGURE 3 is a cross sectional view taken along line 2-2 of FIGURE 2.

In the embodiment of the invention illustrated in the drawings a disposable plastic enema unit 16 includes a bag portion 11, a length of flexible resilient tubing 12 of substantially uniform outer diameter, a clamp 13 and a tip portion 14.

Overriding the flexible resilient plastic tube 12 adjacent the tip 14 is a retaining member 15. The member 15 is shown in FIGURE 1 in engaged relationship with vial-like member 16 to form the complete protective means.

In FIGURES 2 and 3 it is seen that the member 15 is circular shaped with a circular central aperture 17 and passageway 17a. The aperture 17 is slightly smaller in diameter than the tubing 12 so that although the member '15 may be moved along the tubing 12 it will nevertheless retain its newly selected position. The member 15 is preferably further provided with a downwardly dependent skirt 18, an annular portion 19 which is slightly larger in diameter than the inner diameter of the vial-like protective member 16, thus providing a surface which will frictionally engage the inner surface of said member 16.

In the preferred practice of the present invention the member 15 is formed of polypropylene, polyethyelne or the like. The aperture 17 when intended for use with 3,234345 Patented Feb. 15, 19,66

French No. 24 tubing has a diameter of .300 inch which is slightly smaller than that of the tubing. This enables the member ltd to be relatively easily placed upon the resilient flexible tube 12 and positioned at a desired point along said tube. The downwardly extending skirt 18 preferably has a maximum diameter of .500 inch at the annular portion 19. The diameter of the aperture 17 can vary considerably but, of course, should not be so small as to restrict flow through the tubing.

The protective member 16 is preferably of a slightly resilient material such as polyethylene butyrate or propiouate or the like and is in the form of a cylindrical vial with a uniform inner diameter of .431 inch and a length of 2-4 inches. This size vial when used in conjunction with the preferred member 15, deforms slightly to result in a fine close fitting leak-proof unit which contains sufficient lubricant 29 such as white petrolatum in addition to the tip 14 to allow adequate lubrication for even a high enema. Generally for ease in filling with petrolatum and subsequent handling, a flat bottom vial is preferred. However, if desired a suitable vial-like protective member may be formed by closing one end of a length of thermoplastic tubing by heat sealing or the like.

The unique cooperation of the retaining member 15 with the vial-like protective member 16 and the tube 12 with the undersized aperture 17 of the retaining member 15 and with the lubricant forms a structure which is airtight and absolutely leak-proof. Therefore, it is possible when employing the structure of the present invention to dispose with the use of a clamp, such as the clamp 13, if desired, or the clamp 13 is merely included to provide a convenient means of controlling flow of the enema solution through the tube 12. A clamp is not even necessary to prevent the leaking of the solution from a prefilled enema bag when the novel measuring and protective device of the present invention is employed as the entire unit is leak-proof making it unnecessary to use bead valves, clamps or similar type structures such as those which have been used conventionally in the past.

Prior to use the vial-like member is rotated to insure proper lubrication of the enema tip and disengaged from the member 15. The vial-like member 16 is then compressed With the fingers to afford a firm grip on the flexible tube 12 and the member 15 moved along the tube 12 to any desired position. The vial-like member is then discarded and the tubing is grasped with the fingers immediately behind the member 15. The enema tip is then inserted into the body cavity. With the depth of insertion having been predetermined by the positioning of the member 15 it is relatively simple to insure the administration of the proper type of enema i.e. normal or high enema. Furthermore, the entire operation is accomplished with minimum contamination and inconvenience to the administrator of the enema.

While for purposes of illustration a specific type of enema unit has been described it will be readily understood that the device of the present invention may be utilized and commercialized in other forms. For example, if desired a length of flexible plastic tubing with the device of the present invention in place may be sold for use with non-disposable metal enema cans or the like. Still further, of course, the device of the present invention may be used with rubber tubing if desired.

It will likewise be recognized by those skilled in the are that because of its leak-proof fit the device provides substantial advantages during the storage and shipping of prelubricated units. In the past one of the drawbacks to the use of prelubricated devices has been the leakage of lubricant during storage especially at elevated temperatures. The unique device of the present invention, however, has proved to be leak-proof even when containing a liquid lubricant under conditions of elevated storage temperatures.

A Wide variety of changes and variations may be made without departing from the spirit and scope of the present invention.

What we claim is:

In an enema unit comprising an enema solution container provided with an outlet, a resilient flexible tube of substantially uniform outer diameter connected to one end of said outlet and provided at the other end with a rounded tip and tip protecting means, the improved tip protecting means which comprises a relatively rigid generally cylindrical vial-like member open only at one end and positioned in protective manner about said tip, said vial-like member containing a lubricant for said tip and retaining means for retaining said vial-like member in protective manner over said tip, said retaining means comprising a generally cylindrical member provided with a. central aperture and overriding said tube, said central aperture being smaller in diameter than the resilient tubing so that it forms a leak-proof seal with said tube and so that said retaining means normally retains its position upon said tube but can be manually moved along the entire length of said tube if desired, said retaining means being further provided with a downwardly extending skirt provided with an annular portion which is slightly larger in diameter than the inner diameter of the vial-like protective member, providing a surface engaging the inner surface of said protective member to form a leak-proof unit.

References Cited by the Examiner UNITED STATES PATENTS RICHARD A. GAUDET, Primary Examiner.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US841701 *Mar 16, 1906Jan 22, 1907Justin De LisleHypodermic syringe.
US1747391 *Sep 12, 1928Feb 18, 1930David SarasonEnema
US2109059 *Aug 26, 1935Feb 22, 1938Emery Burke MyraInfant's syringe
US2784716 *Mar 31, 1955Mar 12, 1957Baxter Laboratories IncSyringe unit
US2820457 *Jan 14, 1955Jan 21, 1958John W PhillipsPositioning retainer for oro-tracheal tubes
DE489309C *Jan 15, 1930Isana Vertrieb Sanitaerer ArtiVorrichtung zur Warmbehandlung der Unterleibsorgane bei Frauen
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4175559 *Apr 6, 1978Nov 27, 1979Kreb Robert J IiiSealable syringe
US4850970 *Jun 23, 1988Jul 25, 1989American Home Products, Corp.Two part mastitis cannula cap
US5009640 *Jan 19, 1989Apr 23, 1991The Upjohn CompanySlip cap for cannula use
U.S. Classification604/263, D24/118
International ClassificationA61M3/02, A61M3/00
Cooperative ClassificationA61M3/0279
European ClassificationA61M3/02H