US2577780A - Crowned cupped resilient plug for cylindrical passages - Google Patents

Crowned cupped resilient plug for cylindrical passages Download PDF

Info

Publication number
US2577780A
US2577780A US160987A US16098750A US2577780A US 2577780 A US2577780 A US 2577780A US 160987 A US160987 A US 160987A US 16098750 A US16098750 A US 16098750A US 2577780 A US2577780 A US 2577780A
Authority
US
United States
Prior art keywords
plug
crowned
cupped
section
domed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US160987A
Inventor
Marshall L Lockhart
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Compule Corp
Original Assignee
Compule Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to US746679A priority Critical patent/US2577760A/en
Application filed by Compule Corp filed Critical Compule Corp
Priority to US160987A priority patent/US2577780A/en
Priority to US245175A priority patent/US2675226A/en
Application granted granted Critical
Publication of US2577780A publication Critical patent/US2577780A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G11/00Resilient suspensions characterised by arrangement, location or kind of springs
    • B60G11/22Resilient suspensions characterised by arrangement, location or kind of springs having rubber springs only
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178Syringes
    • A61M5/31Details
    • A61M5/315Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
    • A61M5/31511Piston or piston-rod constructions, e.g. connection of piston with piston-rod
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G9/00Resilient suspensions of a rigid axle or axle housing for two or more wheels
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D25/00Details of other kinds or types of rigid or semi-rigid containers
    • B65D25/02Internal fittings
    • B65D25/04Partitions
    • B65D25/08Partitions with provisions for removing or destroying, e.g. to facilitate mixing of contents

Definitions

  • a general object of the present invention is to provide such plugs from resilient -m'aterial, generally of a crowned cupped shape, which are easily and economically'rnass produced and which permit use thereof efficiently as-stoppersfor tubular structures, as piston plugs for expelling .fiuids. from ampule tubes and syringe barrels,
  • Another object of thepres ent. invention is to providelsuch a crowned cupped resilient plugv in which the domed closure end-is readily pierceable to. provide fluid passage slits which permit escape of fluid when pressurethereof is applied. internally; of the hollow plug andwhich maybe effectively closed to passage of fluid when pressure thereofislappliedto the outside offt h'e domed end with resultant inefolding' oflthelatter sothat .tn mg; may serve as a one-wayfvaive; the. stifieneenp of the domed closure end alsoflbeing re di y i abl i' h et;i permi passagetherethrough of a withdrawing needle,
  • a further object of the present invention is to provide structural embodiments of the plug of the present invention which may be readily made and allow eflicient use and operation thereof for a variety of purposes, as will be more fully apparent from the following description,
  • the invention accordingly comprises an article of manufacture possessing the featuresproperties; and the relation of elements which will be exemplified in the article hereinafter described and the scope of the invention will be indicated in the claims;
  • FIG. 1 is an enlarged side view of an embodiment of thecrowned cupped resilient plug of the present invention
  • Fig. 2 is an end view shown in Fig; 1 as-observed from the domed closure end thereof;
  • Fig. 3 is-a longitudinal sectional view, taken substantially on line 3-3 of Fig. 2; r
  • Fig.- 5 is a sectional view similar to Fig:-4 but showingthe in-folding of the domed closure end with application of pressure-thereto externally, a dot-dash lineposition of the so in-folded' plug being indicated to illustrate its usev as a: piston plug;
  • Fig.. 6 is an axial section to a smaller scale of an ampule comprising a tube closed at one end and plugged at the other by the plug illustrated inFigs. l to 5 inclusive, showing afragment of a piston. post or thrust member associated needle of a syringe structure;
  • Fig. '7 is a view Similarto Fig. 6 showing infolding of the domed cl'osureend of the plug when pressure is applied thereto by means-of the. piston post of the syringe after the-needle has pierced therethrough; I v f 8.is -a view similar to Fig; 6 showing, the
  • Fig. 9 is an axial section of a tubular structure or barrel in which the plug of the present invention is located to serve as a one-way valve partition structure, with another piston plug being employed to create hydraulic pressure in contained liquid to force the latter from the interior chamber of the crowned cupped plug through pierced slits in its domed closure end; and
  • Fig. is a side elevational view of a modified form of the crowned cupped resilient plug of the present invention shown in Figs. 1 to 9 inclusive wherein the base sleeve section has a truly cylindrical external surface free from circumferential grooving; that view including in dotted lines a portion of a tube having a waist constriction with the plug serving at the constriction as a partitioning means.
  • Cupped rubber plugs have been commonly used in ampules and syringe barrel structures to serve as stoppers therefor and to act when desired as piston plugs for discharge of liquid contents when mounted in suitable syringe structures, as will be noted from my prior Patent 2,490,447 of December 6, 1949.
  • plugs are closed off at the end by a transversely-extending wall, they are of limited use, since aspiration of a desired degree is not practically attainable therewith.
  • an embodiment of the present invention illustrated in Figs. 1 to 8 inclusive may comprise a body ll of resilient material, such as synthetic or natural rubber or gum and the like, having a substantiallycylindrical base sleeve section l2 and a domed protruding closure end is circumferentially joined to the former at its outer end l4.
  • the walls of the base sleeve section 12 are relatively thick to be appreciably resistive to distortion while permitting limited diametrical constriction to allow a fluid-type fit into a tubular structure, such as a circular hole, tube or cylindrical barrel.
  • the domed protruding closure end I3 is provided with a stiffened transversely-extending central section Hi to define between its margins and the outer end I4 of the base sleeve section I2 a substantially conical zone portion H, which, as will be seen from Fig. 3, is formed of relatively thin stock so as to be of greater flexibility than both the central section and the base sleeve section.
  • the central section 16 is formed by a circular protrudin rib l8 arranged about a circular, relatively thin-walled, transverse tip membrane l9, so that the latter is easily pierceable by a needle while serving as a part of the relatively rigid central section i5.
  • all of the central section [B may if desired, be in the form of a relatively pad of substantially uniform thickness, particularly if the use of the plug is such as not to require central piercing thereof by a needle or should certain resistance to such piercing be unobjectionable.
  • the outer surface of the zone I! preferably has its generatrix, as represented by the dotted line 20, disposed substantially at an angle X of about 45 to the plug axis, as represented by a dot-dash line 2!. It has been found, in accordance with the present invention, that 45 is about the minimum limit of that angle in order to assure elimination of any tendency for the domed protruding end it to flop over under external pressure or to bulge laterally to an interfering degree. It is to be under- 7 stood that the domed protruding end I 3 may,
  • the zone I! is in the shape of the surface of a frustum of a right cone, but other shapes thereof which closely approach the same while possibly providing slightly curved Walls'in that zone, either convex or concave to a small degree, are contemplated within the scope of the present invention and the terminology used herein.
  • the bore 22 of the base sleeve section (2 is preferably constricted or throated at 23 to assure an appreciable thickness of the walls 15, at least at that point, for attainment of the desired relative resistivity to distortion or rigidity.
  • bore 22 is flared out as it, approaches the outer end M of base sleeve l2 so as to permit circumferential connection thereto of the base end of the frusto-conical section [1 at an appreciable diametrical distance from the axis 2
  • the chamber 24 provided within the crowned cupped resilient plug I! is substantially bulbous.
  • tube 25 may be an end portion of a syringe barrel or an ampule of the type shown in my prior patent identified above, with one end closed by the plug H. of the resent invention.
  • the tube 25 is the cartridge sleeve of an am ule intended for use in a Cock type of syringe, as illustrated in U. S. Patent 1,661,818 of March 6, 1928, so as ts serve as the'bar'rel thereof
  • the crowned cupped plug H of the present invention serves as the closing piston plug in one end thereof. It is well understood in the art that in order to discharge liquid contents or such a.
  • the tube 25 is illustrated aszaniampule adapted to-serve as the-barrel: ofxa syringe structure of the type illustrated; in my above identified patent.
  • liquid I3I will be caused tobulge the idomed end, as shown; with an. attendant? opening of the slits 34-34. Consequently, liquid is caused to passthrough the partitioniplug via the" open. slits 3'4''-34. .Their location in thezone ll ispreferred. since it will direct resulting jets of liquid against the; inner wallsoflthe tube I25, rather than axially togive a fountain actionwhich may be undesirable.
  • membrane l9 within the stiffening rib I8 may also be provided with a needle-pierced slit I 34 to supplement the action of the slits 34-44.
  • the opening of the slits 34-34 and I34 under hydraulic pressure applied internally of chamber 24 is, of course, caused by the stretching of the relatively thin flexible walls of zone I! and the central membrane I9 as the domed end of the plug II is bulged under the application of pressure within the chamber, as is well illustrated in Fig. 9.
  • crowned cupped resilient plug for tubular structures comprising a hollow, substantially cylindrical basesleeve section having relatively thickwalls to'be appreciably resistive to distortion while permitting-limited diametrical constriction" to allowfluid-tight fitting into a tubular structure; a domed, protruding closure end circumferentially joined to'one end of said sleeve section; and a stiffened, transversely-extending.
  • the crowned cupped resilient plug as defined in claim 2 characterized by a disposition of the wall of said zone portion relative to the axis of said plug resulting from arrangement of the generatrix of its outer surface at an angle of about 45- to said axis.
  • the crowned cupped resilient plug as defined in claim 3 characterized by the provision of normally-closed, pierced slits in said domed closure end permitting said plug to serve as a one-way valve with said slits opening under fluid pressure applied from within said base sleeve section and closing with in-folding of the domed closure and upon application of fluid pressure externally thereto.
  • a crowned cupped resilient plug for tubular structures comprising a body of resilient material including a base sleeve provided with rela tively thick walls to assure relative rigidity; a relatively thin-walled, highly flexible, frusto-conical section circumferentially joined at its base to and protruding from one end of said sleeve with the generatrix of its outer surface arranged at an angle to the axis of said plug of between about 45 and a few degrees less than 90; and a stiffer, transversely-extending, axially-located section closing off the outer smaller end of said frusto-conical section.
  • a crowned cupped resilient plug for tubular structures comprising a body of resilient material including a base sleeve provided with relatively thick walls to assure relative rigidity; a relatively thin-walled, highly flexible, frusto-conical section circumferentially joined at its base to and protruding from one end of said sleeve with the generatrix of its outer surface arranged at an angle to the axis of said plug of about 45; and a stiffer, transversely-extending, axially located section closing off the outer smaller end of said frusto-conical section.
  • a crowned cupped resilient plug for tubular structures comprising a body of resilient material including a base sleeve provided with relatively thick walls to assure relative rigidity; a relatively thin-walled, highly flexible, frusto-conical section cireumferentially joined at its base to and protruding from one end of said sleeve with the generatrix of its outer surface arranged at an angle to the axis of said plug of between about 45 and a few degrees less than 90; said frustoconical section having normally-closed pierced slits therein to be opened by fluid pressure applied from within said base sleeve; and a stiffer, transversely-extending, axially-located section closing off the outer smaller end of said frustoconical section.
  • a crowned cupped resilient plug for tubular structures comprising a body of resilient material including a base sleeve provided with relatively thick walls to assure relative rigidity; a relatively thin-walled, highly flexible, frusto-conical section circumferentially joined at its base to and protruding from one end of said sleeve with the generatrix of its outer surface arranged at an angle to the axis of said plug of about 45"; said vfrusto-conical section having normally-closed pierced slits therein to be opened by fluid pressure applied from within said base sleeve; and a stiffer, transversely-extending, axially-located section closing off the outer smaller end of said frusto-conical section.
  • a crowned cupped resilient plug for tubular structures comprising a body of resilient material including a base sleeve having relatively thick walls to assure relatively high rigidity and with its outer surface being substantially cylindrical to be fitted into a tubular hole; a relatively thin-walled, highly flexible frusto-conical section circumferentially joined at its larger base end to one end of said sleeve and protruding therefrom with the generatrix of its outer surface arranged at an angle of about 45 to the axis of said plug; and a stiffer, transverselyextending tip portion closing off the outer, smaller end of said frusto-conical section with a protruding circumambient external stiffening rib thereon arranged about a relatively thin needle-pierceable area thereof.
  • a crowned cupped resilient plug for tubular structures comprising a body of resilient material including a base sleeve having relatively thick walls to assure relatively high rigidity and with its outer surface being substantially cylindrical to be fitted into a tubular hole, the bore of said sleeve being enlarged at its outer end; a relatively thin-walled, highly flexible frusto-conical section circumferentially joined at its larger base end'to the outer end of said sleeve :and protruding therefrom with the generatrix of its outer surface arranged at an angle of about 45 to the axis of said plug; and a stiffer, transversely-extending tip portion closing off the outer smaller end of said frusto-conical section with a protruding circumambient external stiffening rib thereon arranged about a relatively thin needle-pierceable area thereof.
  • the crowned cupped resilient plug as defined in claim 10 characterized by the shaping of the bore in said'sleeve to provide near its inner open end a constricted throat with the walls of the bore gradually flaring from that constriction to' the wider portion thereof at its outer end so that said frusto-conical section is of maximum width to provide for free flexing action thereof.

Description

Dec. 11, 1951 M. L. LOCKHART 2,577,780
CROWNED CUPPED ,RESILIENT PLUG FOR CYLINDRICAL PASSAGES Filed May 9, 1950 'JJJIMJIIJMIIIIIJMFJ Patented Dec. 11, 1951 UNITED STATES rarest orricr.
cRoWNnncUPP n RESILIENT PLUG- FOR CYLINDRICAL PASSAGES Marshall L; Lockhart, RutherfordLlN. J., assignor, by direct and mesne assignments, to The Com pule Corporation, Rutherford,
.. ration of New Jersey N; J.,- a corpo- Application May '9, 1950, Serial No. 160,987
. tures which may serve as a; piston plug'therein,
and is adapted especially'to use ihsme'di'cinal storage vials, ampules, hypodermic injection syringes; etc.
A general object of the present invention is to provide such plugs from resilient -m'aterial, generally of a crowned cupped shape, which are easily and economically'rnass produced and which permit use thereof efficiently as-stoppersfor tubular structures, as piston plugs for expelling .fiuids. from ampule tubes and syringe barrels,
or as partitioning'means in tubes readily provided, if desired, with piercedslits effectively to 'serve as efficient one-way valves, i. e., permitting passage of fluids under pressure from within the cupped chambers in the plugswhile blocking reverse fiow; the crowned closure endsof the plugs being of such shape and soproportioned as to avoid any tendency to bulge laterally with in- ,ent zone so proportioned and disposed as to prevent undue lateral bulging. thereof with in-folding under pressure applied either mechanically or by means of fluid so that folds thereof will not extend laterally an appreciable distance beyond the outermargins of the plug to overlap edges ofthe tubular structure when employed as a stopper in an end thereof.
Another object of thepres ent. invention is to providelsuch a crowned cupped resilient plugv in which the domed closure end-is readily pierceable to. provide fluid passage slits which permit escape of fluid when pressurethereof is applied. internally; of the hollow plug andwhich maybe effectively closed to passage of fluid when pressure thereofislappliedto the outside offt h'e domed end with resultant inefolding' oflthelatter sothat .tn mg; may serve as a one-wayfvaive; the. stifieneenp of the domed closure end alsoflbeing re di y i abl i' h et;i permi passagetherethrough of a withdrawing needle,
2 such" as that of a hypodermic syringe, and in'such case allowing use of the inherent action of the domed end with periodic application thereto and relief therefrom of pressure effectively to provide aspirating action.
A further object of the present invention is to provide structural embodiments of the plug of the present invention which may be readily made and allow eflicient use and operation thereof for a variety of purposes, as will be more fully apparent from the following description,
Other objects of the invention will in part be obvious and will in part appear'hereina'fter.
The invention accordingly comprises an article of manufacture possessing the featuresproperties; and the relation of elements which will be exemplified in the article hereinafter described and the scope of the invention will be indicated in the claims;
For a fuller understanding of the nature'a-nd objects of the invention, reference should be had to the following detailed description taken in connection with the accompanying drawingyin which:
- Fig. 1 is an enlarged side view of an embodiment of thecrowned cupped resilient plug of the present invention;
Fig. 2 is an end view shown in Fig; 1 as-observed from the domed closure end thereof;
Fig. 3 is-a longitudinal sectional view, taken substantially on line 3-3 of Fig. 2; r
Fig. 4 is a sectional View, with parts broken away, of a tube and the plug shown in Figs. 1, 2 and 3 with the latter positioned in an end of the former to serve as a stopper while permitting its use, if desired, .as a piston plug, -and-with-=the domed closure end relaxed;
Fig.- 5 is a sectional view similar to Fig:-4 but showingthe in-folding of the domed closure end with application of pressure-thereto externally, a dot-dash lineposition of the so in-folded' plug being indicated to illustrate its usev as a: piston plug;
.Fig..6 is an axial section to a smaller scale of an ampule comprising a tube closed at one end and plugged at the other by the plug illustrated inFigs. l to 5 inclusive, showing afragment of a piston. post or thrust member associated needle of a syringe structure;
Fig. '7 is a view Similarto Fig. 6 showing infolding of the domed cl'osureend of the plug when pressure is applied thereto by means-of the. piston post of the syringe after the-needle has pierced therethrough; I v f 8.is -a view similar to Fig; 6 showing, the
relative position of the parts upon relief of the pressure applied in connection with the Fig. '7 illustration so as to provide aspirating action;
Fig. 9 is an axial section of a tubular structure or barrel in which the plug of the present invention is located to serve as a one-way valve partition structure, with another piston plug being employed to create hydraulic pressure in contained liquid to force the latter from the interior chamber of the crowned cupped plug through pierced slits in its domed closure end; and
Fig. is a side elevational view of a modified form of the crowned cupped resilient plug of the present invention shown in Figs. 1 to 9 inclusive wherein the base sleeve section has a truly cylindrical external surface free from circumferential grooving; that view including in dotted lines a portion of a tube having a waist constriction with the plug serving at the constriction as a partitioning means.
Cupped rubber plugs have been commonly used in ampules and syringe barrel structures to serve as stoppers therefor and to act when desired as piston plugs for discharge of liquid contents when mounted in suitable syringe structures, as will be noted from my prior Patent 2,490,447 of December 6, 1949. However, when such plugs are closed off at the end by a transversely-extending wall, they are of limited use, since aspiration of a desired degree is not practically attainable therewith. Highly crowned plugs which permit a desired degree of aspiration have been used, but when the crown of such a plug projects from the end of a tubular barrel structure or ampule, external pressure thereagainst causes it to flop over or bulge laterally to beyond the edge of the tube, thus undesirably interfering with certain uses of the plug, such as for a piston plug. These and other difficulties of prior art attempts are efficiently eliminated by the crowned cupped resill ient plug of the present invention, which additionally permits effective use thereof as a blocking or one-way valve partition at a point between the ends of tubular structures.
As will be seen from the drawing, in which like numerals identify similar parts throughout, an embodiment of the present invention illustrated in Figs. 1 to 8 inclusive may comprise a body ll of resilient material, such as synthetic or natural rubber or gum and the like, having a substantiallycylindrical base sleeve section l2 and a domed protruding closure end is circumferentially joined to the former at its outer end l4. As best seen in Fig. 3, the walls of the base sleeve section 12 are relatively thick to be appreciably resistive to distortion while permitting limited diametrical constriction to allow a fluid-type fit into a tubular structure, such as a circular hole, tube or cylindrical barrel. The domed protruding closure end I3 is provided with a stiffened transversely-extending central section Hi to define between its margins and the outer end I4 of the base sleeve section I2 a substantially conical zone portion H, which, as will be seen from Fig. 3, is formed of relatively thin stock so as to be of greater flexibility than both the central section and the base sleeve section. Preferably, the central section 16 is formed by a circular protrudin rib l8 arranged about a circular, relatively thin-walled, transverse tip membrane l9, so that the latter is easily pierceable by a needle while serving as a part of the relatively rigid central section i5. However, it will be un derstood that all of the central section [B may if desired, be in the form of a relatively pad of substantially uniform thickness, particularly if the use of the plug is such as not to require central piercing thereof by a needle or should certain resistance to such piercing be unobjectionable.
As indicated in Fig. 3, the outer surface of the zone I! preferably has its generatrix, as represented by the dotted line 20, disposed substantially at an angle X of about 45 to the plug axis, as represented by a dot-dash line 2!. It has been found, in accordance with the present invention, that 45 is about the minimum limit of that angle in order to assure elimination of any tendency for the domed protruding end it to flop over under external pressure or to bulge laterally to an interfering degree. It is to be under- 7 stood that the domed protruding end I 3 may,
within the scope of the present invention, be flatter than that shown by way of example in the drawin so that angle X approaches to within a few degrees of with the plug axis 2!. However, the flatter the domed protruding end i3 is, the lesser is the aspirating action which is attainable by the plug. It will thus be seen that in the preferred embodiments the zone I! is in the shape of the surface of a frustum of a right cone, but other shapes thereof which closely approach the same while possibly providing slightly curved Walls'in that zone, either convex or concave to a small degree, are contemplated within the scope of the present invention and the terminology used herein.
In the preferred embodiments shown in the drawing, the bore 22 of the base sleeve section (2 is preferably constricted or throated at 23 to assure an appreciable thickness of the walls 15, at least at that point, for attainment of the desired relative resistivity to distortion or rigidity. The
bore 22 is flared out as it, approaches the outer end M of base sleeve l2 so as to permit circumferential connection thereto of the base end of the frusto-conical section [1 at an appreciable diametrical distance from the axis 2|, thereby assuring a fair width of the flexible zone to permit good flexing action. It will thus be seen from Fig. 3 that the chamber 24 provided within the crowned cupped resilient plug I! is substantially bulbous.
I In the structure shown in Figs. 4 and 5, tube 25 may be an end portion of a syringe barrel or an ampule of the type shown in my prior patent identified above, with one end closed by the plug H. of the resent invention. Assuming that the tube 25 is the cartridge sleeve of an am ule intended for use in a Cock type of syringe, as illustrated in U. S. Patent 1,661,818 of March 6, 1928, so as ts serve as the'bar'rel thereof, the crowned cupped plug H of the present invention serves as the closing piston plug in one end thereof. It is well understood in the art that in order to discharge liquid contents or such a. barrel through the needle of such a syringe structure, such piston plug is forced to slide down therein by depression of a suitable plunger. In Fig. 5, responsive distortion of the present plug to such plunger action is illustrated. It will there be seen that with application of pressure externally to the protruding tip of the plug. II, as diagrammatically indicated by the arrow 26, the domed protruding closure end I3 is distorted inwardly with flexure of the zone l1. During such flexure of zone ll, there is no appreciable lateral bulging of the plug in the vicinity of the end M of base sleeve I2, or any .of such degree as to cause the formation, of. a $01 1. which would overmam-mo.
:lap -the edge' 21 of the; tube 23 torsuchean: extent as to" intei'f ere with piston -sliding action: thereof. "Such. piston action. is "illustrated ".5 -xb 1z 'a dot-dashoutline at*28, which represents'the location of the plug: when: pushed" inwardly the dis.- tancebetween the 130111135 29 .andf30. Therm;- folding of the tip I3 hasbeen aeimggerated. in
Fig; 5 in order toavoid anypossible" confusion the: showing of that figure.
In-Fig; 6; the tube 25 is illustrated aszaniampule adapted to-serve as the-barrel: ofxa syringe structure of the type illustrated; in my above identified patent. Ampule tube 25 of Fig; 6 contains a body 3 I of medicinal solution intended for; hypodermic injection; with i the end :of thei'tube suitably-=closed off by plug II. of; the. present .tinvention. A portion of pistona-post:ortthrust'memb'er 32 of" the syringe: structureuand thezassociated inner end 33 of. a' double-ended: injection needle .are' shown with the 'latter'being thrust intcs'the membrane: I9. 'After the syringe needle has been properly inserted into a patients flesh. the domed end of the plug H will-be depressed or'insfolded,
as shown in' Fig. 7,."by pushing"theampulei25 toward the: post or .thrust 'membert32. As a .2
result, the space withinu the; ampule' will: be: reduced so as momentarily totdischargelthrough the" needle a; small quantity of fluid contents. Then,.fupon relief 'ofpressurei against ampule 25,
asshown in Fig.1 8 the. resiliency of 'thexplug II will cause its domedend to protrude againwith suction being createdr onv needle .33, 'to'..:provide.1a
Idesired. aspiratinge action- The employment :of the 'plug of. the present invention. as a valved-partition in a tubularstructure .is illustrated in: Fig. '9" wherein a .portionof tube. I25 is shown fitted between. its ends with one of the plugs" I I- The latter preferably provided. with; a plurality of: pierced slits 34'34 in the .zone' [1,. such: asby: thrusting a. needle therethrough: at a plurality of points aboutflthe tip I6. As a result,'when' hydraulic pressure is applied chamber. 24 by" forcing :arpiston. plug 35' of usual construction. into the tube. in the direction of the arrow indicated, liquid I3I: will be caused tobulge the idomed end, as shown; with an. attendant? opening of the slits 34-34. Consequently, liquid is caused to passthrough the partitioniplug via the" open. slits 3'4''-34. .Their location in thezone ll ispreferred. since it will direct resulting jets of liquid against the; inner wallsoflthe tube I25, rather than axially togive a fountain actionwhich may be undesirable. If, however, such fountairr- -action is not objectionable, membrane l9 within the stiffening rib I8 may also be provided with a needle-pierced slit I 34 to supplement the action of the slits 34-44. The opening of the slits 34-34 and I34 under hydraulic pressure applied internally of chamber 24 is, of course, caused by the stretching of the relatively thin flexible walls of zone I! and the central membrane I9 as the domed end of the plug II is bulged under the application of pressure within the chamber, as is well illustrated in Fig. 9. Upon relief of hydraulic pressure with cessation'of sliding motion of piston plug 35, the domed end of the piston plug II will relax so that the pierced slits 34-34 and I 34 will naturally close by contraction of the resilient walls of zone I! and membrane I9. Those slits will remain effectively closed against any pressure applied externally of the domed end since such application of externalpressure will fold it inwardly, such as-is indicated in Fig. 4, and in such distorted disposition, the needle-pierced slits remain-efiectively closed against passage of fluid.
"Iii'Fig: mes 'showni in fulllines at. I l'lzanother embodimentzof thexpl'uguof the: presentinvention 'preferred'when it is desired to 'u'sethe' sameas a partitioning: means in a tubular; structure having a constricted waist; such as that indicated-in dotted lines at I2 5. and 31: respectively in Fig.1.10. lThe constricted waist-.31.:of1course, mayzbezso dimensioned as to serve eitherrasaa permanent seat for? such I a partitioning,plug. or as means intended only: temporarily tor retard sliding action of plug II I upon-application: of pressure thereto.
It willv thus. be seen: that the. objects set forth above,.among those made apparent; from the rpreceding description, are. efficiently attained and, since certain changes may be. made. in the: above article, and different. embodiments: off'the; invention could be made without departing fromithe scope thereof, it is intendedthat" all matter'contained in the" above deseription'or' shown. in the accompanying drawing shall be=*interpreted as illustrative arid. not in a limiting sense.
It is alsotobe understood that the following claims are intended" to cover "all of the generic and specificfeaturesof the invention herein described; and all" statements of 'the'scope of the invention which; as a matter 'of'language, might be said to fall therebetween.
Having described my invention, what I claim as new and desire to secure by Letters Patent is:
1. crowned cupped resilient plug for tubular structures comprising a hollow, substantially cylindrical basesleeve section having relatively thickwalls to'be appreciably resistive to distortion while permitting-limited diametrical constriction" to allowfluid-tight fitting into a tubular structure; a domed, protruding closure end circumferentially joined to'one end of said sleeve section; and a stiffened, transversely-extending. central sectionv onsaid domed closure end defining between its margin and said sleeve section a substantially conical'zone portion, said closure end Zone being of greater flexibility than said central section and said'sleeve section with the g'enerat'r'ix of'the outer surface of said zone being disposed substantially at an angle to the axis of said plug of between about 45 and a few degrees less than 2. The crowned cupped resilient plug as defined in claim 1 characterized by the provision of said zone portion in substantially the shape of the surface of a frustum of a right cone with the thickness thereof being substantially less than the thickness of the Walls of said base sleeve section and said stiffened central section to assure relatively greater flexibility.
3. The crowned cupped resilient plug as defined in claim 2 characterized by a disposition of the wall of said zone portion relative to the axis of said plug resulting from arrangement of the generatrix of its outer surface at an angle of about 45- to said axis.
4; The crowned cupped resilient plug as defined in claim 3 characterized by the provision of normally-closed, pierced slits in said domed closure end permitting said plug to serve as a one-way valve with said slits opening under fluid pressure applied from within said base sleeve section and closing with in-folding of the domed closure and upon application of fluid pressure externally thereto.
5. A crowned cupped resilient plug for tubular structures comprising a body of resilient material including a base sleeve provided with rela tively thick walls to assure relative rigidity; a relatively thin-walled, highly flexible, frusto-conical section circumferentially joined at its base to and protruding from one end of said sleeve with the generatrix of its outer surface arranged at an angle to the axis of said plug of between about 45 and a few degrees less than 90; and a stiffer, transversely-extending, axially-located section closing off the outer smaller end of said frusto-conical section.
6; A crowned cupped resilient plug for tubular structures comprising a body of resilient material including a base sleeve provided with relatively thick walls to assure relative rigidity; a relatively thin-walled, highly flexible, frusto-conical section circumferentially joined at its base to and protruding from one end of said sleeve with the generatrix of its outer surface arranged at an angle to the axis of said plug of about 45; and a stiffer, transversely-extending, axially located section closing off the outer smaller end of said frusto-conical section.
'7. A crowned cupped resilient plug for tubular structures comprising a body of resilient material including a base sleeve provided with relatively thick walls to assure relative rigidity; a relatively thin-walled, highly flexible, frusto-conical section cireumferentially joined at its base to and protruding from one end of said sleeve with the generatrix of its outer surface arranged at an angle to the axis of said plug of between about 45 and a few degrees less than 90; said frustoconical section having normally-closed pierced slits therein to be opened by fluid pressure applied from within said base sleeve; and a stiffer, transversely-extending, axially-located section closing off the outer smaller end of said frustoconical section.
8. A crowned cupped resilient plug for tubular structures comprising a body of resilient material including a base sleeve provided with relatively thick walls to assure relative rigidity; a relatively thin-walled, highly flexible, frusto-conical section circumferentially joined at its base to and protruding from one end of said sleeve with the generatrix of its outer surface arranged at an angle to the axis of said plug of about 45"; said vfrusto-conical section having normally-closed pierced slits therein to be opened by fluid pressure applied from within said base sleeve; and a stiffer, transversely-extending, axially-located section closing off the outer smaller end of said frusto-conical section.
9. A crowned cupped resilient plug for tubular structures comprising a body of resilient material including a base sleeve having relatively thick walls to assure relatively high rigidity and with its outer surface being substantially cylindrical to be fitted into a tubular hole; a relatively thin-walled, highly flexible frusto-conical section circumferentially joined at its larger base end to one end of said sleeve and protruding therefrom with the generatrix of its outer surface arranged at an angle of about 45 to the axis of said plug; and a stiffer, transverselyextending tip portion closing off the outer, smaller end of said frusto-conical section with a protruding circumambient external stiffening rib thereon arranged about a relatively thin needle-pierceable area thereof.
10. A crowned cupped resilient plug for tubular structures comprising a body of resilient material including a base sleeve having relatively thick walls to assure relatively high rigidity and with its outer surface being substantially cylindrical to be fitted into a tubular hole, the bore of said sleeve being enlarged at its outer end; a relatively thin-walled, highly flexible frusto-conical section circumferentially joined at its larger base end'to the outer end of said sleeve :and protruding therefrom with the generatrix of its outer surface arranged at an angle of about 45 to the axis of said plug; and a stiffer, transversely-extending tip portion closing off the outer smaller end of said frusto-conical section with a protruding circumambient external stiffening rib thereon arranged about a relatively thin needle-pierceable area thereof.
' 11. The crowned cupped resilient plug as defined in claim 10 characterized by the shaping of the bore in said'sleeve to provide near its inner open end a constricted throat with the walls of the bore gradually flaring from that constriction to' the wider portion thereof at its outer end so that said frusto-conical section is of maximum width to provide for free flexing action thereof.
' MARSHALL L. LOCKHART.
No references cited.
US160987A 1947-05-08 1950-05-09 Crowned cupped resilient plug for cylindrical passages Expired - Lifetime US2577780A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US746679A US2577760A (en) 1947-05-08 1947-05-08 Spring suspension for vehicles
US160987A US2577780A (en) 1950-05-09 1950-05-09 Crowned cupped resilient plug for cylindrical passages
US245175A US2675226A (en) 1947-05-08 1951-09-05 Spring suspension for vehicles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US160987A US2577780A (en) 1950-05-09 1950-05-09 Crowned cupped resilient plug for cylindrical passages

Publications (1)

Publication Number Publication Date
US2577780A true US2577780A (en) 1951-12-11

Family

ID=22579325

Family Applications (1)

Application Number Title Priority Date Filing Date
US160987A Expired - Lifetime US2577780A (en) 1947-05-08 1950-05-09 Crowned cupped resilient plug for cylindrical passages

Country Status (1)

Country Link
US (1) US2577780A (en)

Cited By (60)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2693185A (en) * 1951-12-01 1954-11-02 Compule Corp Hypodermic syringe and aspirating ampoule thereof
US2848130A (en) * 1953-10-07 1958-08-19 Duo Vent Vacuum Closure Compan Pressure resistant closures
US2886203A (en) * 1956-08-01 1959-05-12 Braun Goll Company Plastic stopper and shield for a tap rod fitting for a barrel
US3009217A (en) * 1958-02-28 1961-11-21 Chase Bottle & Supply Corp Clinical thermometer retainer
US3075525A (en) * 1959-07-15 1963-01-29 Robert K Mcconnaughey Venting closures and separators for hypodermic syringes
US3089490A (en) * 1960-03-14 1963-05-14 Graham Chemical Corp Disposable cartridge type hypodermic syringes
US3091240A (en) * 1958-12-29 1963-05-28 Robert K Mcconnaughey Hypodermic syringe and ventable closure means
US3200984A (en) * 1962-08-14 1965-08-17 Mueller Brass Co Pressure seal plug
US3295525A (en) * 1963-04-09 1967-01-03 Astra Apotekarnes Kem Fab Self-aspirating cartridge ampoule
US3303846A (en) * 1963-10-08 1967-02-14 Functional Container Corp Mixing syringe having separate compartments for incompatible medicaments
US3682174A (en) * 1969-10-07 1972-08-08 Milton J Cohen Syringe for injection of freshly mixed liquid-powder
US3885549A (en) * 1972-06-26 1975-05-27 David Thomas Green Apparatus for producing a vacuum in a test tube
US3887464A (en) * 1974-02-27 1975-06-03 Becton Dickinson Co Serum/plasma separator with centrifugal valve seal
US3894952A (en) * 1974-02-27 1975-07-15 Becton Dickinson Co Serum/plasma separator assembly having interface-seeking piston
US3894951A (en) * 1974-02-27 1975-07-15 Becton Dickinson Co Serum/plasma separator; interface seeking piston; resilient apertures in lower diaphragm type
US3894950A (en) * 1974-02-27 1975-07-15 Becton Dickinson Co Serum separator improvement with stretchable filter diaphragm
US3897337A (en) * 1974-02-27 1975-07-29 Becton Dickinson Co Plasma separator assembly having interface-seeking piston with centrifugal valve
US3931010A (en) * 1974-02-27 1976-01-06 Becton, Dickinson And Company Serum/plasma separators with centrifugal valves
US3935113A (en) * 1974-02-27 1976-01-27 Becton, Dickinson And Company Serum/plasma separator with centrifugal valve
US3941699A (en) * 1974-02-27 1976-03-02 Becton, Dickinson And Company Plasma separator with centrifugal valve
US3972121A (en) * 1974-08-12 1976-08-03 Nash John E Pressure reducer for air driven dental handpiece
US4308689A (en) * 1980-01-07 1982-01-05 Jenson Clark E Tree medication capsule
US4640442A (en) * 1983-10-31 1987-02-03 The Procter & Gamble Company Dispensing package and follower deivce
US4671331A (en) * 1986-03-13 1987-06-09 Lyphomed, Inc. Cover for medicinal vial
US4728006A (en) * 1984-04-27 1988-03-01 The Procter & Gamble Company Flexible container including self-sealing dispensing valve to provide automatic shut-off and leak resistant inverted storage
US5188620A (en) * 1988-01-25 1993-02-23 Baxter International Inc. Pre-slit injection site and associated cannula
US5211638A (en) * 1988-01-25 1993-05-18 Baxter International Inc. Pre-slit injection site
US5658260A (en) * 1988-01-25 1997-08-19 Baxter International Inc. Bayonet lock cannula for pre-slit y-site
US5776125A (en) * 1991-07-30 1998-07-07 Baxter International Inc. Needleless vial access device
US5797897A (en) * 1988-01-25 1998-08-25 Baxter International Inc. Pre-slit injection site and tapered cannula
US5947326A (en) * 1997-11-12 1999-09-07 Alasco Rubber & Plastics Corporation Bung and stopper
US6102410A (en) * 1997-02-06 2000-08-15 Yazaki Corporation Rubber stopper for waterproof connector
US6193697B1 (en) 1987-03-17 2001-02-27 Baxter International Inc. Pre-slit injection site and tapered cannula
US6213996B1 (en) 1988-01-25 2001-04-10 Baxter International Inc. Pre-slit injection site and tapered cannula
US6494463B1 (en) * 2000-11-06 2002-12-17 Kurt J. Rank Plug for sealing more than one size of hole
US6571971B1 (en) * 2001-02-08 2003-06-03 Weller Engineering, Inc. Hermetically sealed container with pierceable entry port
US6976509B1 (en) 2004-08-02 2005-12-20 Kirvan Clifford J Method and apparatus for pressurizing plastic pipe
US20060203048A1 (en) * 2005-03-14 2006-09-14 Scheffelin Joseph E Plug
US20060206058A1 (en) * 1991-12-18 2006-09-14 Lopez George A Medical valve and method of use
US20100160135A1 (en) * 2008-07-21 2010-06-24 Becton, Dickinson And Company Density Phase Separation Device
US20100288694A1 (en) * 2009-05-15 2010-11-18 Becton, Dickinson And Company Density Phase Separation Device
US8002765B2 (en) 1995-12-15 2011-08-23 Icu Medical, Inc. Medical valve with fluid escape space
USD644731S1 (en) 2010-03-23 2011-09-06 Icu Medical, Inc. Medical connector
US8105314B2 (en) 2006-10-25 2012-01-31 Icu Medical, Inc. Medical connector
US8394342B2 (en) 2008-07-21 2013-03-12 Becton, Dickinson And Company Density phase separation device
US8444628B2 (en) 2000-07-11 2013-05-21 Icu Medical, Inc. Needleless medical connector
US8454579B2 (en) 2009-03-25 2013-06-04 Icu Medical, Inc. Medical connector with automatic valves and volume regulator
US8758306B2 (en) 2010-05-17 2014-06-24 Icu Medical, Inc. Medical connectors and methods of use
US20150122691A1 (en) * 2006-10-19 2015-05-07 DePuy Synthes Products, LLC Fluid delivery system
US9186494B2 (en) 2004-11-05 2015-11-17 Icu Medical, Inc. Medical connector
US9333445B2 (en) 2008-07-21 2016-05-10 Becton, Dickinson And Company Density phase separation device
USD786427S1 (en) 2014-12-03 2017-05-09 Icu Medical, Inc. Fluid manifold
US9682373B2 (en) 1999-12-03 2017-06-20 Becton, Dickinson And Company Device for separating components of a fluid sample
US9694359B2 (en) 2014-11-13 2017-07-04 Becton, Dickinson And Company Mechanical separator for a biological fluid
USD793551S1 (en) 2014-12-03 2017-08-01 Icu Medical, Inc. Fluid manifold
US10272174B2 (en) 2006-09-14 2019-04-30 DePuy Synthes Products, Inc. Bone cement and methods of use thereof
US10369349B2 (en) 2013-12-11 2019-08-06 Icu Medical, Inc. Medical fluid manifold
US10485597B2 (en) 2003-03-31 2019-11-26 DePuy Synthes Products, Inc. Remotely-activated vertebroplasty injection device
US10631906B2 (en) 2005-11-22 2020-04-28 DePuy Synthes Products, Inc. Apparatus for transferring a viscous material
US10799278B2 (en) 2003-03-14 2020-10-13 DePuy Synthes Products, Inc. Hydraulic device for the injection of bone cement in percutaneous vertebroplasty

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (127)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2693185A (en) * 1951-12-01 1954-11-02 Compule Corp Hypodermic syringe and aspirating ampoule thereof
US2848130A (en) * 1953-10-07 1958-08-19 Duo Vent Vacuum Closure Compan Pressure resistant closures
US2886203A (en) * 1956-08-01 1959-05-12 Braun Goll Company Plastic stopper and shield for a tap rod fitting for a barrel
US3009217A (en) * 1958-02-28 1961-11-21 Chase Bottle & Supply Corp Clinical thermometer retainer
US3091240A (en) * 1958-12-29 1963-05-28 Robert K Mcconnaughey Hypodermic syringe and ventable closure means
US3075525A (en) * 1959-07-15 1963-01-29 Robert K Mcconnaughey Venting closures and separators for hypodermic syringes
US3089490A (en) * 1960-03-14 1963-05-14 Graham Chemical Corp Disposable cartridge type hypodermic syringes
US3200984A (en) * 1962-08-14 1965-08-17 Mueller Brass Co Pressure seal plug
US3295525A (en) * 1963-04-09 1967-01-03 Astra Apotekarnes Kem Fab Self-aspirating cartridge ampoule
US3303846A (en) * 1963-10-08 1967-02-14 Functional Container Corp Mixing syringe having separate compartments for incompatible medicaments
US3682174A (en) * 1969-10-07 1972-08-08 Milton J Cohen Syringe for injection of freshly mixed liquid-powder
US3885549A (en) * 1972-06-26 1975-05-27 David Thomas Green Apparatus for producing a vacuum in a test tube
US3887464A (en) * 1974-02-27 1975-06-03 Becton Dickinson Co Serum/plasma separator with centrifugal valve seal
US3941699A (en) * 1974-02-27 1976-03-02 Becton, Dickinson And Company Plasma separator with centrifugal valve
US3894951A (en) * 1974-02-27 1975-07-15 Becton Dickinson Co Serum/plasma separator; interface seeking piston; resilient apertures in lower diaphragm type
US3894950A (en) * 1974-02-27 1975-07-15 Becton Dickinson Co Serum separator improvement with stretchable filter diaphragm
US3897337A (en) * 1974-02-27 1975-07-29 Becton Dickinson Co Plasma separator assembly having interface-seeking piston with centrifugal valve
US3931010A (en) * 1974-02-27 1976-01-06 Becton, Dickinson And Company Serum/plasma separators with centrifugal valves
US3935113A (en) * 1974-02-27 1976-01-27 Becton, Dickinson And Company Serum/plasma separator with centrifugal valve
US3894952A (en) * 1974-02-27 1975-07-15 Becton Dickinson Co Serum/plasma separator assembly having interface-seeking piston
US3972121A (en) * 1974-08-12 1976-08-03 Nash John E Pressure reducer for air driven dental handpiece
US4308689A (en) * 1980-01-07 1982-01-05 Jenson Clark E Tree medication capsule
US4640442A (en) * 1983-10-31 1987-02-03 The Procter & Gamble Company Dispensing package and follower deivce
US4728006A (en) * 1984-04-27 1988-03-01 The Procter & Gamble Company Flexible container including self-sealing dispensing valve to provide automatic shut-off and leak resistant inverted storage
US4671331A (en) * 1986-03-13 1987-06-09 Lyphomed, Inc. Cover for medicinal vial
US6193697B1 (en) 1987-03-17 2001-02-27 Baxter International Inc. Pre-slit injection site and tapered cannula
US6261266B1 (en) 1988-01-25 2001-07-17 Baxter International Inc. Pre-slit injection site and tapered cannula
US6605076B1 (en) 1988-01-25 2003-08-12 Baxter International Inc. Pre-slit injection site and tapered cannula
US5188620A (en) * 1988-01-25 1993-02-23 Baxter International Inc. Pre-slit injection site and associated cannula
US5797897A (en) * 1988-01-25 1998-08-25 Baxter International Inc. Pre-slit injection site and tapered cannula
US5871500A (en) * 1988-01-25 1999-02-16 Baxter International Inc. Pre-slit injection site and tapered cannula
US6569125B2 (en) 1988-01-25 2003-05-27 Baxter International Inc Pre-slit injection site and tapered cannula
US5658260A (en) * 1988-01-25 1997-08-19 Baxter International Inc. Bayonet lock cannula for pre-slit y-site
US5211638A (en) * 1988-01-25 1993-05-18 Baxter International Inc. Pre-slit injection site
US6213996B1 (en) 1988-01-25 2001-04-10 Baxter International Inc. Pre-slit injection site and tapered cannula
US6217568B1 (en) 1988-01-25 2001-04-17 Edwards Lifesciences Corporation Preslit injection site and tapered cannula for blood sampling
US6447498B1 (en) 1988-01-25 2002-09-10 Baxter International Inc. Pre-slit injection site and tapered cannula
US5776125A (en) * 1991-07-30 1998-07-07 Baxter International Inc. Needleless vial access device
US7717884B2 (en) 1991-12-18 2010-05-18 Icu Medical, Inc. Medical valve and method of use
US7717885B2 (en) 1991-12-18 2010-05-18 Icu Medical, Inc. Medical valve and method of use
US7713248B2 (en) 1991-12-18 2010-05-11 Icu Medical, Inc. Medical valve and method of use
US7713247B2 (en) 1991-12-18 2010-05-11 Icu Medical, Inc. Medical valve and method of use
US7722575B2 (en) 1991-12-18 2010-05-25 Icu Medical, Inc. Medical valve and method of use
US20060206058A1 (en) * 1991-12-18 2006-09-14 Lopez George A Medical valve and method of use
US20060264891A1 (en) * 1991-12-18 2006-11-23 Icu Medical, Inc. Medical valve and method of use
US7722576B2 (en) 1991-12-18 2010-05-25 Icu Medical, Inc. Medical valve and method of use
US7717886B2 (en) 1991-12-18 2010-05-18 Icu Medical, Inc. Medical valve and method of use
US7717883B2 (en) 1991-12-18 2010-05-18 Icu Medical, Inc. Medical valve and method of use
US7713249B2 (en) 1991-12-18 2010-05-11 Icu Medical, Inc. Medical valve and method of use
US7717887B2 (en) 1991-12-18 2010-05-18 Icu Medical, Inc. Medical valve and method of use
US8002765B2 (en) 1995-12-15 2011-08-23 Icu Medical, Inc. Medical valve with fluid escape space
US6102410A (en) * 1997-02-06 2000-08-15 Yazaki Corporation Rubber stopper for waterproof connector
US5947326A (en) * 1997-11-12 1999-09-07 Alasco Rubber & Plastics Corporation Bung and stopper
US9682373B2 (en) 1999-12-03 2017-06-20 Becton, Dickinson And Company Device for separating components of a fluid sample
US9238129B2 (en) 2000-07-11 2016-01-19 Icu Medical, Inc. Medical connector
US8870850B2 (en) 2000-07-11 2014-10-28 Icu Medical, Inc. Medical connector
US8444628B2 (en) 2000-07-11 2013-05-21 Icu Medical, Inc. Needleless medical connector
US6494463B1 (en) * 2000-11-06 2002-12-17 Kurt J. Rank Plug for sealing more than one size of hole
US6571971B1 (en) * 2001-02-08 2003-06-03 Weller Engineering, Inc. Hermetically sealed container with pierceable entry port
US10799278B2 (en) 2003-03-14 2020-10-13 DePuy Synthes Products, Inc. Hydraulic device for the injection of bone cement in percutaneous vertebroplasty
US10485597B2 (en) 2003-03-31 2019-11-26 DePuy Synthes Products, Inc. Remotely-activated vertebroplasty injection device
US6976509B1 (en) 2004-08-02 2005-12-20 Kirvan Clifford J Method and apparatus for pressurizing plastic pipe
US11883623B2 (en) 2004-11-05 2024-01-30 Icu Medical, Inc. Medical connector
US9884176B2 (en) 2004-11-05 2018-02-06 Icu Medical, Inc. Medical connector
US9415200B2 (en) 2004-11-05 2016-08-16 Icu Medical, Inc. Medical connector
US10722698B2 (en) 2004-11-05 2020-07-28 Icu Medical, Inc. Medical connector
US9186494B2 (en) 2004-11-05 2015-11-17 Icu Medical, Inc. Medical connector
US20060203048A1 (en) * 2005-03-14 2006-09-14 Scheffelin Joseph E Plug
US10631906B2 (en) 2005-11-22 2020-04-28 DePuy Synthes Products, Inc. Apparatus for transferring a viscous material
US10272174B2 (en) 2006-09-14 2019-04-30 DePuy Synthes Products, Inc. Bone cement and methods of use thereof
US10494158B2 (en) * 2006-10-19 2019-12-03 DePuy Synthes Products, Inc. Fluid delivery system
US20150122691A1 (en) * 2006-10-19 2015-05-07 DePuy Synthes Products, LLC Fluid delivery system
US8398607B2 (en) 2006-10-25 2013-03-19 Icu Medical, Inc. Medical connector
US8628515B2 (en) 2006-10-25 2014-01-14 Icu Medical, Inc. Medical connector
US9533137B2 (en) 2006-10-25 2017-01-03 Icu Medical, Inc. Medical connector
US8105314B2 (en) 2006-10-25 2012-01-31 Icu Medical, Inc. Medical connector
US9339741B2 (en) 2008-07-21 2016-05-17 Becton, Dickinson And Company Density phase separation device
US10350591B2 (en) 2008-07-21 2019-07-16 Becton, Dickinson And Company Density phase separation device
US9333445B2 (en) 2008-07-21 2016-05-10 Becton, Dickinson And Company Density phase separation device
US9700886B2 (en) 2008-07-21 2017-07-11 Becton, Dickinson And Company Density phase separation device
US8394342B2 (en) 2008-07-21 2013-03-12 Becton, Dickinson And Company Density phase separation device
US9933344B2 (en) 2008-07-21 2018-04-03 Becton, Dickinson And Company Density phase separation device
US8747781B2 (en) 2008-07-21 2014-06-10 Becton, Dickinson And Company Density phase separation device
US9452427B2 (en) 2008-07-21 2016-09-27 Becton, Dickinson And Company Density phase separation device
US20100160135A1 (en) * 2008-07-21 2010-06-24 Becton, Dickinson And Company Density Phase Separation Device
US9714890B2 (en) 2008-07-21 2017-07-25 Becton, Dickinson And Company Density phase separation device
US10086188B2 (en) 2009-03-25 2018-10-02 Icu Medical, Inc. Medical connectors and methods of use
US9440060B2 (en) 2009-03-25 2016-09-13 Icu Medical, Inc. Medical connectors and methods of use
US11896795B2 (en) 2009-03-25 2024-02-13 Icu Medical, Inc Medical connector having elongated portion within closely conforming seal collar
US11376411B2 (en) 2009-03-25 2022-07-05 Icu Medical, Inc. Medical connectors and methods of use
US10799692B2 (en) 2009-03-25 2020-10-13 Icu Medical, Inc. Medical connectors and methods of use
US8454579B2 (en) 2009-03-25 2013-06-04 Icu Medical, Inc. Medical connector with automatic valves and volume regulator
US10391293B2 (en) 2009-03-25 2019-08-27 Icu Medical, Inc. Medical connectors and methods of use
US9278206B2 (en) 2009-03-25 2016-03-08 Icu Medical, Inc. Medical connectors and methods of use
US9919307B2 (en) 2009-05-15 2018-03-20 Becton, Dickinson And Company Density phase separation device
US9919308B2 (en) 2009-05-15 2018-03-20 Becton, Dickinson And Company Density phase separation device
US9919309B2 (en) 2009-05-15 2018-03-20 Becton, Dickinson And Company Density phase separation device
US8998000B2 (en) 2009-05-15 2015-04-07 Becton, Dickinson And Company Density phase separation device
US8794452B2 (en) 2009-05-15 2014-08-05 Becton, Dickinson And Company Density phase separation device
US11786895B2 (en) 2009-05-15 2023-10-17 Becton, Dickinson And Company Density phase separation device
US9079123B2 (en) 2009-05-15 2015-07-14 Becton, Dickinson And Company Density phase separation device
US11351535B2 (en) 2009-05-15 2022-06-07 Becton, Dickinson And Company Density phase separation device
US9364828B2 (en) 2009-05-15 2016-06-14 Becton, Dickinson And Company Density phase separation device
US9731290B2 (en) 2009-05-15 2017-08-15 Becton, Dickinson And Company Density phase separation device
US10343157B2 (en) 2009-05-15 2019-07-09 Becton, Dickinson And Company Density phase separation device
US9802189B2 (en) 2009-05-15 2017-10-31 Becton, Dickinson And Company Density phase separation device
US10807088B2 (en) 2009-05-15 2020-10-20 Becton, Dickinson And Company Density phase separation device
US10376879B2 (en) 2009-05-15 2019-08-13 Becton, Dickinson And Company Density phase separation device
US20100288694A1 (en) * 2009-05-15 2010-11-18 Becton, Dickinson And Company Density Phase Separation Device
US10413898B2 (en) 2009-05-15 2019-09-17 Becton, Dickinson And Company Density phase separation device
US10456782B2 (en) 2009-05-15 2019-10-29 Becton, Dickinson And Company Density phase separation device
USD644731S1 (en) 2010-03-23 2011-09-06 Icu Medical, Inc. Medical connector
USD1003434S1 (en) 2010-03-23 2023-10-31 Icu Medical, Inc. Medical connector seal
US11071852B2 (en) 2010-05-17 2021-07-27 Icu Medical, Inc. Medical connectors and methods of use
US9205243B2 (en) 2010-05-17 2015-12-08 Icu Medical, Inc. Medical connectors and methods of use
US9750926B2 (en) 2010-05-17 2017-09-05 Icu Medical, Inc. Medical connectors and methods of use
US8758306B2 (en) 2010-05-17 2014-06-24 Icu Medical, Inc. Medical connectors and methods of use
US9192753B2 (en) 2010-05-17 2015-11-24 Icu Medical, Inc. Medical connectors and methods of use
US10195413B2 (en) 2010-05-17 2019-02-05 Icu Medical, Inc. Medical connectors and methods of use
US10369349B2 (en) 2013-12-11 2019-08-06 Icu Medical, Inc. Medical fluid manifold
US11364372B2 (en) 2013-12-11 2022-06-21 Icu Medical, Inc. Check valve
US9694359B2 (en) 2014-11-13 2017-07-04 Becton, Dickinson And Company Mechanical separator for a biological fluid
USD793551S1 (en) 2014-12-03 2017-08-01 Icu Medical, Inc. Fluid manifold
USD826400S1 (en) 2014-12-03 2018-08-21 Icu Medical, Inc. Fluid manifold
USD786427S1 (en) 2014-12-03 2017-05-09 Icu Medical, Inc. Fluid manifold
USD849939S1 (en) 2014-12-03 2019-05-28 Icu Medical, Inc. Fluid manifold
USD890335S1 (en) 2014-12-03 2020-07-14 Icu Medical, Inc. Fluid manifold

Similar Documents

Publication Publication Date Title
US2577780A (en) Crowned cupped resilient plug for cylindrical passages
US3557787A (en) Disposable syringe
US2724383A (en) Combined mixing container structure and hypodermic syringe for segregated ingredients of hypodermically injectable preparations
US3838689A (en) Disposable syringe with slit valve
US2408323A (en) Hypodermic syringe
US3494359A (en) Two compartment syringe with a single barrel
US2625157A (en) Single dosage disposable hypodermic syringe ampoule and assembly
US3340869A (en) Collapsible ampoules
US1943120A (en) Hypodermic syringe
US3174655A (en) Drop or spray dispenser
US3144866A (en) Disposable douche syringe and bag
US1529659A (en) Hypodermic instrument
US3340873A (en) Compartmented medical container having a rupturable diaphragm between compartments
KR860006270A (en) syringe
US3527215A (en) Syringe construction having internal bladder
US2636493A (en) Mixing container for segregated ingredients of therapeutic preparations
US2693189A (en) Venoclysis equipment
US3941131A (en) Device for administration of viscous fluids for the urethal tract
US3330280A (en) Combination syringe vial and plunger and syringe
US3244173A (en) Syringe
US3058467A (en) Hypodermic syringes
USRE16836E (en) Hypodermic syringe.
US2720880A (en) Disposable cartridge syringe
US1604224A (en) Syringe
US3215142A (en) Bulb-type syringe