|Publication number||US2937643 A|
|Publication date||May 24, 1960|
|Filing date||Oct 11, 1957|
|Priority date||Oct 11, 1957|
|Publication number||US 2937643 A, US 2937643A, US-A-2937643, US2937643 A, US2937643A|
|Inventors||Elliot Eric C|
|Original Assignee||Elliot Eric C|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (2), Referenced by (40), Classifications (4)|
|External Links: USPTO, USPTO Assignment, Espacenet|
y 1960 E. c. ELLIOT 2,937,643
DEVICE FOR FLUID TRANSFERENCE Filed Oct. 11, 1957 //v VENTOR. [z/c C. [LL/07' A Trams 7s United States Patent 2,937,643 DEVICE FOR FLUID TRANSFERENCE Eric C. Elliot, 8420 118th St., Edmonton, Alberta, Canada Filed Oct. 11, 1957, Ser. No. 689,590 7 (Ilaims. (Cl. 128-214) The present invention relates to a device for fluid transference and more particularly to a catheter for intravenous injection and transfusion.
There are, at present, a number of devices in use for transferring fluids intravenously to a patient through a needle introduced into a vein. In these prior devices, there is no way of introducing a short plastic catheter into the vein without going through the detailed operat1on of threading a catheter through a needle, withdrawmg the needle over and off the catheter and then connecting the catheter to another needle and then to a plastic tubing.
The present invention overcomes these disadvantages by providing a needle with a catheter therein, the catheter being adapted to be projected, with the needle, into the vein. The needle is then withdrawn leaving the catheter positioned in the vein. An added advantage of the present invention is the fact that it enables the catheter to be kept in a sterilized condition before use.
The invention comprises a device having a hollow needle, a catheter slidable in the needle, and an axially extensible and collapsible tubular member surrounding the catheter and having one end fixed with respect to the catheter remote from the free end thereof, said hollow needle being associated with the free end of the tubular member, the catheter being adapted to terminate within the needle when the tubular member is extended and to project from the needle when the tubular member is collapsed.
The invention will now be described with reference to the accompanying diagram in which:
Figure 1 is an elevation, partly in cross-section, of the device,
Figure 2 is an end view of that part of the device carrying the needle; and
Figure 3 is an end view of that part of the device carrying the means for attachment to a fluid reservoir.
In the embodiment showing the diagram, the device comprises a flexible catheter 1 which may be of plastic or any other suitable material. One end 1a of the catheter has means 2 aflixed to it for attachment to a fluid reservoir. Means 2 may consist of a tubular neck 3 having an enlarged portion 4 to which a tube (not shown) leading from a reservoir may be attached.
A tubular member 5, preferably a bellows, surrounds catheter 1 and is fixed at one end 5a to the neck 3 of means 2. In its extended position, bellows 5 does not extend as far as free end 1b of catheter 1. Bellows 5 carries perforations 12 allowing air to escape when the bellows is collapsed.
Fixed to free end 5b of bellows 5 is a thin walled hollow needle 6. As indicated in the drawing, needle 6 may be removably fixed to free end 5b of bellows 5 by means of an adapter 7 to which the needle may be threaded or otherwise attached. Free end 1b of catheter 1 terminates in needle 6 when bellows Sis fully extended. When bellows 5 is collapsed, catheter 1 projects substantially from the open end of needle 6.
To enable bellows 5 to be secured in the collapsed position, a cup-like housing 8 is attached to adapter 7 and extends back over part of the bellows. A disc 10 having projection 11 is rotatably mounted on neck 3 of means '2. Slots 13 in housing 8 are positioned to be engaged by projection 11 when bellows 5 is collapsed. The housing 8 is thus detachably secured to means 4, the
2,937,643 I Patented May 24, 1960 bellows being retained in a relatively dust proof container.
In the operation of the device, the assembly is supplied, in sterile condition with catheter 1 positioned inside both bellows 5 and the needle 6. Needle 6 is inserted in the vein and as soon as blood wells up in the needle, catheter 1 is pushed forward to enter the vein by moving disc 10 towards housing 8. Depending upon the length of catheter used, it can be seen that a substantial portion may enter the vein. As catheter 1 is pushed forward and bellows 5 is collapsed the air trapped inside the bellows escapes through perforations 12 rather than entering the vein. The blood in the needle, acting as a seal, further ensures that the air in the bellows will not enter the vein but will escape by means of the perforations. When catheter 1 has been pushed forward as far as possible bellows 5, now in collapsed position, is retained within cup-like housing 8 by the action of the projections on disc 11 engaging slots 13 in the housing. The needle is then withdrawn from the vein, drawing out a short portion of the catheter but leaving a substantial length of it in the vein.
Alternatively, of course, the device may be operated by drawing housing 8 back towards disc 10 to withdraw needle 6 from the vein, thus leaving a greater length of catheter 1 in the vein.
In an alternative embodiment of the invention, bellows 6 may be replaced by a flexible member, tubular in crosssection and helically formed so as to be extensible. The operation of this embodiment is the same as previously described.
What I claim as my invention is:
l. A device for transferring fluids comprising a hollow needle, a catheter slidable in the needle, an axially extensible and collapsible tubular member surrounding the catheter and having one end fixed with respect to the catheter remote from the free end thereof, said needle being associated with the free .end of the tubular member, the catheter being adapted to terminate within the needle when the tubular member is extended and to project from the needle when the tubular member is collapsed.
2. A .device for transferring fluids as in claim 1, ineluding a latching means associated with the ends of the tubular member to detachably secure the said tubular member in collapsed position.
3. A device for transferring fluids as in claim 1, wherein the tubular member is perforated bellows.
4. A device for transferring fluids as claimed in claim 2, wherein the latching means includes projections associated with one end of the tubular member which are adapted to be detachably secured in slots carried by means associated with the opposite end of the tubular member.
5. A device for transferring fluids as in claim 4, wherein said means associated with the opposite end of the tubular member comprises a cup-like housing extending back over part of the tubular member, said housing carrying slots in which said projections of the latching means are detachably secured when the tubular member is in collapsed position.
6. A device for transferring fluids as claimed in claim 1, wherein the'needle is detachably secured to the tubular member.
7. A device for transferring fluids as in claim 1 including means associated with the catheter for connection with a reservoir.
France Dec. 23, 1953 France June 18, 19.56
|Cited Patent||Filing date||Publication date||Applicant||Title|
|FR1064445A *||Title not available|
|FR1123836A *||Title not available|
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US3017884 *||May 1, 1958||Jan 23, 1962||Ballard Dale H||Apparatus for injecting or infusing fluids into patients and method of making same|
|US3055361 *||Apr 22, 1960||Sep 25, 1962||Deseret Pharmaceutical Company||Intravenous catheters|
|US3185151 *||Jun 19, 1962||May 25, 1965||Sorenson Res Corp||Catheter placement unit|
|US3262448 *||Nov 6, 1963||Jul 26, 1966||Sorenson Res Corp||Intravenous catheter placement unit|
|US3370587 *||Jul 17, 1962||Feb 27, 1968||Fernando R. Vizcarra||Method of introducing a catheter into a body vessel|
|US3438373 *||Mar 21, 1966||Apr 15, 1969||Voys Inc Le||Catheter placement unit with unidirectional locking means to prevent catheter retraction|
|US3444860 *||Jun 6, 1966||May 20, 1969||Harrell Osmah E||Aseptic catheter assembly with holder introducer|
|US3463152 *||Jun 8, 1966||Aug 26, 1969||Sorenson Research Corp||Catheter placement unit|
|US3474786 *||Dec 4, 1968||Oct 28, 1969||Spademan Richard George||Catheter adapted for fluid connection prior to insertion|
|US3840008 *||Apr 18, 1972||Oct 8, 1974||Surgical Corp||Safety hypodermic needle|
|US3937220 *||Mar 4, 1974||Feb 10, 1976||International Paper Company||Sterile aspiration catheter|
|US3991762 *||Sep 30, 1974||Nov 16, 1976||Radford F Richard||Aspirating device for patient ventilation apparatus|
|US4327723 *||May 13, 1980||May 4, 1982||Arrow International, Inc.||Catheter shield|
|US4515592 *||May 3, 1982||May 7, 1985||Arrow International, Inc.||Catheter shield|
|US4568334 *||Apr 25, 1984||Feb 4, 1986||Lynn Lawrence A||Intravascular catheter preparation and dispensing container assembly|
|US4767409 *||May 23, 1983||Aug 30, 1988||Edward Weck Incorporated||Catheter protective shield|
|US4967743 *||Dec 1, 1988||Nov 6, 1990||Ballard Medical Products||Neonatal closed system for involuntary aspiration and ventilation, and method|
|US5065754 *||Jun 6, 1990||Nov 19, 1991||Ballard Medical Products||Aspirating catheter tube inserter|
|US5107829 *||Apr 25, 1990||Apr 28, 1992||Ballard Medical Products||Neonatal closed system for involuntary aspiration and ventilation, and method|
|US5133345 *||Nov 14, 1991||Jul 28, 1992||Ballard Medical Products||Neonatal closed system for involuntary aspiration and ventilation, and method|
|US5149326 *||Jan 17, 1992||Sep 22, 1992||Baxter International Inc.||Adjustable catheter contamination shield|
|US5215522 *||Apr 5, 1991||Jun 1, 1993||Ballard Medical Products||Single use medical aspirating device and method|
|US5277177 *||Jul 16, 1991||Jan 11, 1994||Ballard Medical Products||Single use medical aspirating device and method|
|US5611336 *||Mar 30, 1995||Mar 18, 1997||Ballard Medical Products, Inc.||Single use medical aspirating device and method|
|US5694922 *||Aug 19, 1994||Dec 9, 1997||Ballard Medical Products||Swivel tube connections with hermetic seals|
|US5769825 *||Aug 20, 1996||Jun 23, 1998||Lynn; Lawrence A.||Self-contained syringe and pharmaceutical packaging system for enclosed mixing of pharmaceutical and diluent|
|US6228065||Jun 22, 1998||May 8, 2001||Lawrence A. Lynn||Displacement activated medical check valve|
|US6494203||Nov 12, 1999||Dec 17, 2002||Ballard Medical Products||Medical aspirating/ventilating closed system improvements and methods|
|US8162890||May 6, 2007||Apr 24, 2012||Flexicath Ltd.||Catheter insertion apparatus and method of use thereof|
|US8613728||Nov 6, 2006||Dec 24, 2013||Flexicath Ltd.||Removable adapter for a splittable introducer and method of use thereof|
|US8888747 *||Oct 12, 2006||Nov 18, 2014||Adapta Medical, Inc.||Catheter assembly with vents|
|US9078981 *||Sep 19, 2013||Jul 14, 2015||Boston Scientific Scimed Inc.||Catheter system including an embolism protection device|
|US20080091136 *||Oct 12, 2006||Apr 17, 2008||Jamie Glen House||Catheter assembly with vents|
|US20090306591 *||May 6, 2007||Dec 10, 2009||Shai Amisar||Catheter insertion apparatus and method of use thereof|
|US20090318867 *||Nov 6, 2006||Dec 24, 2009||Flexicath Ltd.||Removable Adapter for a Splittable Introducer and Method of Use Thereof|
|US20140088503 *||Sep 19, 2013||Mar 27, 2014||Boston Scientific Scimed Inc.||Catheter system including an embolism protection device|
|EP0468316A2 *||Jul 12, 1991||Jan 29, 1992||Abbott Laboratories||Sensor delivery device|
|EP0468316A3 *||Jul 12, 1991||Jun 3, 1992||Abbott Laboratories||Sensor delivery device|
|EP2022279A2 *||May 6, 2007||Feb 11, 2009||Flexicath Ltd.||Catheter insertion apparatus and method of use thereof|
|EP2022279A4 *||May 6, 2007||Nov 25, 2009||Flexicath Ltd||Catheter insertion apparatus and method of use thereof|