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Publication numberUS2358440 A
Publication typeGrant
Publication dateSep 19, 1944
Filing dateMar 21, 1941
Priority dateMar 21, 1941
Publication numberUS 2358440 A, US 2358440A, US-A-2358440, US2358440 A, US2358440A
InventorsBowman Edward F
Original AssigneeEdwin T Wyman
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Protective sheath for medical and surgical use
US 2358440 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)


BowmanrBoston, Mam, win T. Wyman, Broollin assignor to e, Mass.

Application March 21, 1941, serial No. 384,436

2 Claims. (Cl. 128-294) sired gripping effect. The constriction c is made The present invention relates to coverings in th nature of finger cots for protection of a. surseon's fingers against infection when inserted into localities containing disease germs, and for analogous uses. Its object is to provide such coverings for single members, as distinguished from the connected fingers of a surgical glove, of substantially less thickness than the material of surgeons gloves and having means forming an integral part thereof for binding them on the finger. A further object is to provide a chamber in the closed extremity oi such sheath, partially subdivided from the main body of the sheath, but communicating therewith, adapted to receive a fluid, such. as an antiseptic or cleansing liquid to serve as an additional safeguard against iniection.

The drawing illustrates the principles or the invention in a generic way without reproducing the exact dimensions or form of a sheath designed for any specific finger.

Fig. 1 or the drawing is aside elevation of the protector;

" Fig. 2 is a longitudinal section thereof;

Figs. 3 and 4 are views similar to Fig. 2,- showing other forms of the protector.

My protective device is made 01. thin, exceedingly flexible and resilient material, preferably a vulcanized composition of natural rubberjor analogous compound of so called synthetic rubber. The precise composition and methods of making it are not of the, essence of the invention, and all substantial equivalents of the substances herein named may be used within-the scope of theprotection which I seek, and the article may be made by any suitable method of manufacture. a

J The protective cover or sheath here shown is made with a body portion a and an end chamber or sac b. The body portionis oi suitable length and diameter to receive, and fit smoothly upon, the finger for which it is designed, without being unduly stretched. It is of generally cylindrical shape. The material forming-its side walls is thin; 01 a thickness approximating that of paper, 1. e., in theorder of from two to eight thousandths of an inch. A constriction vc is formed in the sheath to constitute a retaining band adapted to bind the sheath on the finger by contractile force over a zone of narrow width. Such constriction may be located at the open end of. the sheath, as shown in Figs. 1, 2 and 3, or at any desired distance from such open end, as shown in Fig. 4. In any case it is far enough from the of a diameter enough smaller than that o! the main body ofthe sheath to have the desired e1- iect. It maybe or greater thickness than the thin sheath walls, as shown in Fig. 2, or of the same thickness, as shown in Figs. 3 and 4. When made or greater thickness, it is not essential that .the constriction'be at the open end of the sheath;

the constriction intermediate the ends may equally well be thicker than the contiguous walls. In anycase the rim of the end opening is preterably reinforced by a bead d of substantially.

circular cross section.

When the sheath is placed on,the finger, the

5 ,constriction is stretched to much larger than enlargement, and the force of such resistance is normal diameter, and its natural resilience causes it to embrace the finger with suflicient force to prevent thesheath from slipping off. The sac or chamber bis united with the body Dart by a neck e of reduced diameter. Such neck a f is-gormed by an annular ring or band inintegral.

union with the walls of the body and sac, which are or tapering form adjacent to their Junction points. The neck zone may be of substantially greater thickness than the adjoining walls, as shown in Fig. 2, or it may be of the same thickness, as shown in Fig. 4. In either case it resists of course greater in the case of the thickened formation.

A passage f extends through the neck into the interior of the sac 1). Such passage is too small to permit entrance into the interior of the sac of a finger large enough to fit thebodypart oi the sheath, but it provides ample space for the passage of fluid. If the sac is filled with an antiseptic solution before the finger is inserted into the protective sheath, the end or the finger will block the passage .1 in some measure, preventing a free fiow of the solution but permitting a slow seepage. The constriction or band 0, however, embraces thefinger tightlyv enough to prevent escape or the fluid from the open end 01" the sheath.

What I claim anddesire to secure by Letters Patent is:

1. A protective sheath having flexible expansible resilientwalls of a thickness in the order of 'a few thousandths of an inch, closed at one end and open at the other end, the sides of the sheath being shapedto form a constriction which, when the sheath is free of external or internal stress is of substantially smaller. internal diameter than the contiguous portions of the sheath and located closed end to surround the finger with the de- 5 between the ends at a distance from the clo ed considerabl distances from both, the inside di-' meter of the sheath at both sides of the constriction being substantially the same and substantially larger than the smallest diameter 01 the 6 constriction.


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2438901 *Jul 19, 1944Apr 6, 1948Charles D CoxeOriented polymeric sheath
US2510249 *Nov 27, 1946Jun 6, 1950Stanley PenksaProtective receptor
US2604092 *Jul 28, 1949Jul 22, 1952Edward Brown FrederickProtective sheath for cows' teats
US2610630 *Jan 25, 1951Sep 16, 1952Voune Crew Beatrice LaSurgical apparatus
US2705951 *Jun 26, 1952Apr 12, 1955Crowner Warren LSurgical appliance
US2940450 *Aug 20, 1957Jun 14, 1960Urex CompanyMale urine drain
US4690135 *May 5, 1986Sep 1, 1987Synergist LimitedMale impotence prosthesis
US4763940 *Jul 20, 1987Aug 16, 1988Held Curtis NDocument handling aid
US4846816 *Mar 11, 1985Jul 11, 1989Manfredi Frank AMale urinary drain system
US4945923 *Jul 10, 1989Aug 7, 1990Evans Mark IContraceptive and prophylactic device
US5005589 *Mar 22, 1990Apr 9, 1991Hwang Ying TehCondom
US5046489 *Dec 18, 1990Sep 10, 1991Greg GibsonProsthetic device
US5059190 *Mar 30, 1990Oct 22, 1991Coloplast A/SExternal male urinary catheter and method and apparatus for manufacturing such a catheter
US5199444 *Jul 8, 1991Apr 6, 1993Family Health InternationalCondom having enhanced grippability structure and annular sealing element
US5318042 *Oct 23, 1990Jun 7, 1994Oxacon LimitedCondom
US5713880 *Apr 2, 1996Feb 3, 1998Medpoint CorporationExternal male catheter
US5855206 *May 17, 1995Jan 5, 1999Ireland; JudLoose prophylactic sack device having improved closure
US5921941 *Jul 17, 1998Jul 13, 1999Longobardo; John J.Disposable stethoscope cover
US6068618 *May 21, 1997May 30, 2000Medpoint CorporationExternal male catheter
US6634367 *Mar 25, 2002Oct 21, 2003Kathleen Hunter AbrahamSealing enclosure for finger tips
US8241154 *Sep 28, 2010Aug 14, 2012Vincent PfeiferCover for the shaft of a field hockey stick
US8690754Apr 27, 2011Apr 8, 2014Richard L. SmithTractal erectile device
US9314396Feb 14, 2013Apr 19, 2016Richard L. SmithTractal erectile device and seal cap
US20020025827 *Jul 13, 2001Feb 28, 2002Song Chang JuneExtendable antenna for wireless telephones
US20050011566 *Jul 14, 2003Jan 20, 2005Blake SchritterHydraulic pipe sleeve
US20080146870 *Dec 14, 2006Jun 19, 2008Marchello John LSystem and method for correcting erectile dysfunction
US20110015005 *Sep 28, 2010Jan 20, 2011Vincent PfeiferCover for the shaft of a lacrosse stick
WO1987006821A1 *Jun 4, 1986Nov 19, 1987Synergist LimitedMale impotence prosthesis
WO2003082044A1 *Feb 24, 2003Oct 9, 2003Abraham Kathleen HSealing enclosure for finger tips
U.S. Classification2/21, D24/105, 128/880, 128/844, 604/349
International ClassificationA61B19/04, A61B19/00
Cooperative ClassificationA61B19/04
European ClassificationA61B19/04