Recherche Images Maps Play YouTube Actualités Gmail Drive Plus »
Connexion
Les utilisateurs de lecteurs d'écran peuvent cliquer sur ce lien pour activer le mode d'accessibilité. Celui-ci propose les mêmes fonctionnalités principales, mais il est optimisé pour votre lecteur d'écran.

Brevets

  1. Recherche avancée dans les brevets
Numéro de publicationUS3859998 A
Type de publicationOctroi
Date de publication14 janv. 1975
Date de dépôt5 juin 1972
Date de priorité5 juin 1972
Autre référence de publicationCA1005718A1, DE2328261A1
Numéro de publicationUS 3859998 A, US 3859998A, US-A-3859998, US3859998 A, US3859998A
InventeursJoseph John Thomas, William Smith
Cessionnaire d'origineJohnson & Johnson
Exporter la citationBiBTeX, EndNote, RefMan
Liens externes: USPTO, Cession USPTO, Espacenet
Intravenous needle assembly
US 3859998 A
Résumé
A plug having a slitted diaphragm for venting air from, but preventing the passage of blood from, a transparent blood-detecting chamber located on the proximal end of the hub of a hollow pointed hypodermic needle during a venipuncture procedure.
Images(1)
Previous page
Next page
Description  (Le texte OCR peut contenir des erreurs.)

United States Patent [1 1 Thomas et al.

[ 1 Jan. 14, 1975 INTRAVENOUS NEEDLE ASSEMBLY [75] Inventors: Joseph John Thomas, Somerville;

William Smith, Califon, both of NJ.

[73] Assignee: Johnson & Johnson, New

Brunswick, NJ.

[22] Filed: June 5, 1972 [21] Appl. No.: 259,886

[52] U.S.Cl....l28/214.4,128/221, l28/274;-D1G. 16

[51] Int. Cl. A6lm 5/00, A61m 1/00 [58] Field of Search 128/218 R, 218 NV, 218 M, 128/214.4, 214 R, 276, 221, 347-349, DIG. 5, 214.2, 274

[56] References Cited UNITED STATES PATENTS 3,091,240 5/1963 McConnaughey et al. 128/218 NV 3,094,122 6/1963 Gauthier et al 128/214.4 3,459,183 8/1969 Ring et al. 128/214.4

3,620,500 11/1971 Santomieri 128/348 3,659,587 5/1972 3,662,752 5/1972 3,680,562 8/1972 3,774,604 11/1973 Danielsson 128/274 X OTHER PUBLICATIONS An Improved Catheter for Long-Term Arterial lnfusion of the Tumoricidal Drugs, Surgery, Vol. 58, No. 6, Dec. 1965, pp- 938-940.

Primary Examiner-Richard A. Gaudet Assistant Examiner-J. C. McGowan [57] ABSTRACT A plug having a slitted diaphragm for venting air from, but preventing the passage of blood from, a transparent blood-detecting chamber located on the proximal end of the hub of a hollow pointed hypodermic needle during a venipuncture procedure.

5 Claims, 3 Drawing Figures INTRAVENOUS NEEDLE ASSEMBLY BACKGROUND OF THE INVENTION This invention relates to intravenous needle assemblies and, more particularly, to a hub construction and plug usable with an intravenous needle for detecting the presence of the needle point within a blood vessel and for preventing the flow of blood from the assembly during the venipuncture procedure. The device also provides means for venting air to enable the blood to flow from the blood vessel into a blood-detecting chamber located in the needle hub.

During the placement of a needle or flexible plastic catheter into a vein or other body member, it is desirable to determine whether or not the tip of the needle or catheter is properly situated within the vessel. Because the introduction of the assembly into the vein is normally accomplished by the use of a rigid metallic needle, it is impossible to detect the presence of blood in the needle and needle hub and, likewise. the presence of the needle tip in the vein. lntroducer needles are normally equipped with a hub and some prior art devices have equipped the hub portion of the needle with transparent flash chambers into which the blood may flow to indicate that the needle point is properly placed. However, in the past, the flow of blood from the flash chamber was controlled by a plug that was inserted into the chamber after the blood had actually appeared therein. Consequently, it often occurred that blood would flow from the chamber prior to the insertion of the plug completely within the chamber to prevent the flow of blood therefrom.

Therefore, it has been desirable for many years to provide a blood-detecting chamber into which blood could flow to indicate that the needle point had been properly placed, which chamber is provided with a means for venting air therefrom to permit the flow of blood thereinto and to prevent the flow of blood from the chamber. I

SU MMARY OF THE INVENTION The present invention provides a single plug which may be firmly positioned within the proximal end of a transparent blood-detecting chamber on an introducer needle hub. This plug is designed to vent air from the blood-detecting chamber when the introducer needle is positioned within a blood vessel so that blood may flow from the vessel into the chamber. The plug is also designed to prevent the flow of such blood from the blood chamber until such time as the plug is removed therefrom. The plug has a relatively simple design, with no moving parts, and it may be quickly inserted and removed from the blood detecting chamber.

In the preferred embodiment of the invention, the plug is provided with an axial opening across which a thin plastic diaphragm is positioned. The diaphragm has an opening therethrough which is of sufficient size to permit air to pass from the blood chamber but to prevent the flow of blood therethrough.

BRIEF DESCRIPTION OF THE DRAWING The invention will be particularly described with reference to the following detailed description of the preferred embodiment of the invention when considered together with the attached drawing, in which:

FIG. 1 is a perspective view of an intravenous needle assembly showing the plug of the present invention in a position removed from the end of the blood-detecting chamber;

FIG. 2 is a longitudinal cross sectional view of the needle assembly of FIG. 1 showing the plug of the present invent-ion inserted within the blood-detecting chamber; and

FIG. 3 is an end view of the plug as viewed from the left in FIG. 2.

Referring to FIGS. 1 and 2, the preferred embodi ment of the intravenous needle assembly of the present invention is shown generally at 10. The assembly comprises an introducer needle 11 which is in the form of a hollow hypodermic needle having a point 12 on one end thereof. Needle 11 is secured at its blunt end to a plastic hub 13 which has a transparent blood-detecting chamber 14 integral with its proximal end. The entire hub and blood-detecting chamber assembly may preferably be molded in one piece from a suitable clear plastic material. In the preferred embodiment, needle 11 serves the function of introducing a flexible plastic catheter 15 into a vein or other body vessel. Catheter 15 is attached to a hub 16 at its proximal end and hub 16 is adapted to be removably secured to a fitting 17 on the distal end of hub 13.

Except for the transparent blood-detecting chamber 14, the intravenous needle assembly thus far described is very similar to the assembly described in U.S. Pat. No. 3,094,122. The procedure used for the introduction of such an assembly into a vein isthoroughly illustrated in this patent and it may be seen that it is necessary to perform a relatively complicated procedure including the utilization of a syringe during the introduction of the needle into a vein in order to ascertain the location of the needle point within the vein and in order to vent the system so that blood may flow from the vein through the catheter assembly.

The present invention eliminates the necessity for such a complex operation and provides a relatively simple one-piece plug which performs at least one of the functions of the syringe in the above-cited patent. This plug is shown generally at 20 in the drawing and includes an enlarged gripping surface 21, a tapered neck portion 22 for insertion into the proximal end of blooddetecting chamber 14 and a diaphragm 23 having a diametrically oriented slit 24 formed therein. Plug 20 may be molded in one piece with diaphragm 23 formed at the distal end of the plug from a relatively thin portion of the plastic material. Slit 24 may then be formed in the diaphragm by a cutting or other suitable procedure.

The size of slit 24 is not critical, however, it has been found to be desirable to form the slit in diaphragm 23 without the removal of any of the plastic material. This assures that air may be vented from the blood-detecting chamber but provides a seal against the passage of blood from the chamber. For purposes of illustration, slit 24 has been shown in the Figures in an enlarged condition so that it will be apparent that there is an opening in diaphragm 23.

As stated above, the procedure for introducing a needle and catheter into a vein is very adequately shown in U.S. Pat. No. 3,094,122. The needle assembly of the present invention may be introduced in a similar manner and this procedure will be described below.

To initiate the introduction of the needle into a vein, the unit is fully assembled as shown in FIG. 2 with catheter 15 positioned over needle 11 and with plug 20 firmly seated within the proximal end of blooding into chamber 14 can then be detected by the operator through the transparent wall of the chamber. Be-

cause of the extremely small size of slit 24, blood will be retained within the chamber and not permitted to pass through the axial opening in plug 20. When it is desired to attach an administration set or other device to the catheter hub, it is only necessary to withdraw the needle from the catheter and, thereby, expose the open female luer end of hub 16 for the appropriate male fitting.

On the other hand, needle 11 may be used independent of catheter and an administration set or other device may be attached directly to the blood-detecting chamber 14 by merely removing plug 20 therefrom.

lt will be apparent from the foregoing description, that the subject invention provides an effective, yet relatively simple, device for detecting the presence of an introducer needle point within a vein and for preventing the loss of blood from the needle assembly. This is accomplished automatically without the necessity of manipulative procedures required by prior art devices.

What is claimed is:

1. An intravenous needle assembly comprising: a hollow pointed needle; a hub secured to the proximal end of said needle, said hub having a transparent blooddetecting chamber; and a plug removably secured in said chamber, said plug having an axial opening therethrough and a thin diaphragm disposed across said opening, said diaphragm having a slit formed therein for permitting the passage of air from said chamber, the amount of material in said diaphragm being substantially unchanged by the formation of said slit therein.

2. The intravenous needle assembly of claim 1 wherein said diaphragm is located adjacent the distal end of said plug.

3. The intravenous needle assembly of claim 2 wherein said slit is diametrically oriented.

4. The intravenous needle assembly of claim 1 further comprising a flexible plastic intravenous catheter disposed over said needle.

5. The intravenous needle assembly of claim 4 wherein said catheter is secured to a hub which is removably attached to the distal end of said needle hub.

Citations de brevets
Brevet cité Date de dépôt Date de publication Déposant Titre
US3091240 *29 déc. 195828 mai 1963Milton J CohenHypodermic syringe and ventable closure means
US3094122 *18 janv. 196118 juin 1963Gauthier Theophile EFlexible cannula and intravenous needle combined
US3459183 *20 mai 19665 août 1969Voys Inc LeCatheter placement unit with anesthetic
US3620500 *4 févr. 197016 nov. 1971Deseret PharmaVariable aperture fluid flow control apparatus
US3659587 *30 juin 19702 mai 1972Affiliated Hospital ProdValved connector arrangement
US3662752 *8 juil. 197016 mai 1972Nippon Medical SupplyInfusion device
US3680562 *26 avr. 19711 août 1972Becton Dickinson CoSurgical drainage apparatus for bladder
US3774604 *28 janv. 197127 nov. 1973Demeco Medical Products AbInfusion cannula assembly
Référencé par
Brevet citant Date de dépôt Date de publication Déposant Titre
US4013076 *24 oct. 197522 mars 1977Diemolding CorporationAspirator jar
US4193400 *16 juin 197818 mars 1980The Deseret CompanyIntravenous needle assembly with air bleed plug
US4207870 *15 juin 197817 juin 1980Becton, Dickinson And CompanyBlood sampling assembly having porous vent means vein entry indicator
US4269186 *26 sept. 197926 mai 1981The Deseret CompanyIntravenous needle assembly with air bleed plug
US4445884 *14 août 19811 mai 1984Bioresearch Inc.Air purge unit for auto transfusion apparatus
US4468224 *28 janv. 198228 août 1984Advanced Cardiovascular Systems, Inc.System and method for catheter placement in blood vessels of a human patient
US4682980 *8 août 198628 juil. 1987Terumo CorporationPuncture needle assembly
US4685902 *4 avr. 198611 août 1987Becton, Dickinson And CompanyDisposable reservoir cassette
US4772267 *27 mars 198720 sept. 1988Menlo Care, Inc.Peripheral IV catheter with enlargeable flashback chamber
US4874373 *3 mars 198717 oct. 1989Luther Ronald BDip formed catheter and assembly
US4917671 *20 juil. 198817 avr. 1990Critikon, Inc.Flash plug for I.V. catheters
US5030207 *2 nov. 19909 juil. 1991Becton, Dickinson And CompanyInstantaneous vein entry indicator for intravenous needle
US5045065 *15 mars 19903 sept. 1991Raulerson J DanielCatheter introduction syringe
US5137518 *21 oct. 199111 août 1992Becton, Dickinson And CompanyInstantaneous vein entry indicator for intravenous needle
US5226883 *31 mars 199213 juil. 1993Sherwood Medical CompanyFlashback ventilation cap
US5256148 *13 avr. 199226 oct. 1993Ethicon, Inc.Verress needle with enhanced acoustical means
US5282827 *5 mars 19921 févr. 1994Kensey Nash CorporationHemostatic puncture closure system and method of use
US5295969 *27 avr. 199222 mars 1994Cathco, Inc.Vascular access device with air-tight blood containment capability
US5306259 *10 août 199226 avr. 1994Cathco, Inc.Vascular access needle having an extended length body
US5431655 *9 juin 199311 juil. 1995Cook IncorporatedIntraosseous needle
US5484442 *11 mai 199216 janv. 1996Cook IncorporatedIntraosseous needle
US5542932 *20 juil. 19956 août 1996Daugherty; Charles W.Bloodless flashback vent
US5601559 *4 févr. 199411 févr. 1997Cook IncorporatedIntraosseous needle
US5676689 *28 févr. 199614 oct. 1997Kensey Nash CorporationHemostatic puncture closure system including vessel location device and method of use
US5795336 *2 mai 199718 août 1998Beech Medical Products, Inc.Automatic needle protector having features for facilitating assembly
US6007563 *7 oct. 199828 déc. 1999Kensey Nash CorporationMethod of deploying percutaneous puncture closure
US6015401 *24 avr. 199818 janv. 2000Brackett; Jacqueline DarleneMethods for vessel cannulation
US6042567 *23 nov. 199328 mars 2000Allegheny-Singer Research InstituteApparatus for the introduction or removal of fluid based material from a blood vessel of a patient
US6090130 *25 juin 199818 juil. 2000Kensey Nash CorporationHemostatic puncture closure system including blood vessel locator and method of use
US6261263 *30 août 199917 juil. 2001VygonHub of arterial puncture needle
US65337591 juin 200118 mars 2003Robert WatsonFlash chamber with a self closing valve for use with a catheter
US7163526 *8 janv. 200316 janv. 2007Becton, Dickinson And CompanyFlashback blood collection needle with needle shield
US761503316 août 200410 nov. 2009Becton, Dickinson And CompanyFlashback blood collection needle
US806226228 sept. 200722 nov. 2011Becton, Dickinson And CompanyExtravascular system in-line venting
US816289630 sept. 200924 avr. 2012Becton, Dickinson And CompanyFlashback blood collection needle
US8202253 *17 oct. 200819 juin 2012Wexler Toby JMethod and apparatus for introducing an intravenous catheter
US828749812 déc. 200616 oct. 2012Bd Medical Products, Pte. Ltd.Flashback blood collection needle with needle shield
US83830447 juil. 201026 févr. 2013Becton, Dickinson And CompanyBlood sampling device
US85180632 juil. 200827 août 2013Russell A. HouserArteriotomy closure devices and techniques
US859725212 juil. 20113 déc. 2013Becton, Dickinson And CompanyRemovable flash chamber
DE2828709A1 *30 juin 197825 janv. 1979Travenol LaboratoriesVenenkatheter mit selbstbelueftendem stopfen
EP0042211A2 *14 mai 198123 déc. 1981Becton, Dickinson and CompanyMultiple sample needle assembly
EP0139872A1 *18 juil. 19848 mai 1985Abbott LaboratoriesFlashback indicating system
EP0352928A1 *10 juil. 198931 janv. 1990Critikon, Inc.I.V. catheter with self-locating needle guard
EP0397038A1 *4 mai 199014 nov. 1990Becton Dickinson and CompanyVent for flashback plug
WO1993011812A1 *17 déc. 199220 juin 1993Pennsylvania Med CollegeApparatus for introduction or removal of fluid
WO2009105553A1 *19 févr. 200927 août 2009Edwards Lifesciences CorporationCannula
WO2012009457A1 *13 juil. 201119 janv. 2012Becton, Dickinson And CompanyA blood test strip and an intravenous catheter system
Classifications
Classification aux États-Unis604/168.1, 604/900
Classification internationaleA61M39/20, A61B19/00, A61M25/06, A61B17/34
Classification coopérativeA61M39/20, A61M25/0693, A61B17/34, A61B2017/00907, Y10S604/90
Classification européenneA61B17/34, A61M25/06K, A61M39/20