|Publication number||US3382872 A|
|Publication date||14 May 1968|
|Filing date||7 Jun 1965|
|Priority date||7 Jun 1965|
|Publication number||US 3382872 A, US 3382872A, US-A-3382872, US3382872 A, US3382872A|
|Inventors||Rubin Melvin L|
|Original Assignee||Melvin L. Rubin|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (3), Referenced by (28), Classifications (4)|
|External Links: USPTO, USPTO Assignment, Espacenet|
y 14, 1968 M. RUBIN 3,382,872
VENOUS CATHETER AND NEEDLE Filed June 7, 1965 INVENTOR Me/w'n Lawrence Rub/n BY wwj- M ATTORNEY United States Patent 3,382,872 VENOUS CATHETER AND NEEDLE Melvin L. Rubin, Baltimore, Md. (Fort Howard Veterans Hospital, Fort Howard, Md. 21052) Filed June 7, 1965, Ser. No. 461,740 Claims. (Cl. 128--214.4)-
ABSTRACT OF THE DISCLOSURE A hypodermic needle is constructed from a hollow needle which can contain a catheter tube, with the needle being longitudinally splittable into two sections each having a handle for gripping to longitudinally split the needle enabling it to be removed from an implanted catheter tube. A plastic sac is provided enveloping the catheter tube to maintain it sterile and having one end cemented to the handles of the needle sections, with the sac being longitudinally splittable along lines extending from the junction of the needle sections so as to split when the needle is split.
This invention relates generally to surgical instruments, and more particularly it pertains to an interavenous catheter and needle. A
Catheters have been standard equipment in medicine for many years as are the needles used for puncturing the vein and introducing the catheter.
It is an object of this invention to provide a puncturing and catheter introducing needle which may be withdrawn over and completely removed from about the catheter so as to avoid subsequent damage to same and to provide a more comfortable and safe vein tap to the patient.
Another object of this invention is to provide a tubular hypodermic needle which is easily made from sheet metal and includes integral handle means.
Still another object of this invention is to provide a split needle type of catheter which is maintained completely sterile to the moment of use.
Other objects and attendant advantages of this invention will become more readily apparent and understood from the accompanying specification and drawings in which:
FIG. 1 is a view of a catheter arrangement incorporating features of this invention;
FIG. 2 is an enlarged detail view of the catheter of FIG. 1;
FIG. 3 is a cross section of the needle taken on line 3-3 of FIG. 2;
FIG. 4 is a detail perspective view of a second embodiment of the needle;
FIG. 5 is a cross section taken on line 5-5 of FIG. 3; and
FIG. 6 illustrates the method of application of the improved catheter of the invention.
Referring now to the details of the drawings, reference numeral 10 indicates generally an intravenous catheter arrangement incorporating features of this inevntion.
The catheter arrangement 10 is a self-contained sterile assembly including a hollow needle 12 of hypodermic type having a clear passage 14 extending therethrough. This needle 12 is made up from metal tubing which has been split longitudinally so as to form two U-shaped halves 16 and 18 or the halves may be made from rolled sheet metal in separate operations.
The halves 16 and 18 in either case are identical and have flanged or rolled-back portions 20 defining small handles. The halves 16 and 18 may optionally be joined together at their edges to form the tubular needle 12 by gluing with an epoxy, soft soldering, or they may be de- 3,382,872 Patented May 14, 1968 fined by a pair of opposed longitudinally frangible lines extending from one end to the other where the fabrication is from tubular stock.
In either case a sharpened point 22 is made on the end of the needle 12 remote from the handles 20 whereby the flesh of a patient may be punctured and the needle 12 introduced into a blood vessel.
An elongated flexible catheter tube 24 is loosely positioned in the hollow needle 12 and extends externally for several inches from the handles 20. The remote end of the catheter 24 is provided with a Luer-type standard adapter 26 for intravenous tubing and a temporary rubber stopper 28 inserted therein. The catheter 24 is positioned in the needle 12 and maintained sterile by means of a temporary pliable plastic sac 30 extending thereover and cemented to the handles 20 at one end and to the adapter 26 at the other. A removable temporary rubber cover 32 similarly protects the needle 12.
A pair of diametrically opposed tear strips 34 are arranged along the length of the plastic sac 30 each extending from the junction lines of the needle halves.
The novel catheter 10 is prepared for use by first removing the stopper 28 and connecting the usual intravenous bottle hOse at the adapter 26. Next the rubber cover 32 is removed and the needle inserted in a blood vessel.
The needle 12 is then withdrawn from the skin leaving the catheter in the vessel. Then, as shown in the drawings, the needle is grasped by the handles 20 and pulled apart to separate the halves 16 and 18 along their junctions and continued tension splits the plastic sac 30 along its tear strips 34 all the way to the adapter 26. The needle halves 16 and 18 together with the sac 30 are removed and discarded. The catheter 24, free of the needle 12 and sac 30, may now be taped to the patients skin.
In some sizes of needles it may be of advantage for greater strength to form or secure a clasp 36 on one half 38 of a modified needle 40 embracing the other half 18 as shown in FIGS. 4 and 5. This will assure greater temporary adherence to the other half 18 especially during much handling and shipping.
A catheter 10 made and used according to the teachings herein is safe and comfortable to the patient.
There is no danger that the catheter will be cut by movement of the patient because the needle is entirely removed. Because the Luer-type end is exposed from the sac 30, the rubber stopper can be removed and the assembly rinsed out with fiuid if a puncture attempt is first unsuccessful, without any breakdown in sterility. Furthermore because the remote end of the catheter 24 is accessible (from without the sac 30) at the stopper 28, it is easy to thread it into a vein through the bore of the needle 12 using the stopper as a handle.
Obviously many modifications and variations of the present invention are possible in light of the above teachings. It is, therefore, to be understood that within the scope of the appended claims the invention may be practiced otherwise than as specifically described.
What is claimed is:
1. A needle structure having a longitudinal passage therethrough, tube means positioned along said passage, said needle structure being longitudinally splittable into two sections for defining an opening the length of said needle structure for withdrawal from said tube means by way of said opening, handle means secured to each of said sections for gripping to obtain the longitudinal splitting of said needle structure, sac means enveloping said tube means rearwardly of said needle structure for keeping said tube means sterile, said sac means being cemented to each said handlemeans and being longitudinally splittable along a pair of lines extending from the junction of said two sections of said needle structure so as to be structure consists of a pair of longitudinal portions glued split when said needle structure is split. together.
2. The needle structure of claim 1 wherein said handle References Cited means consists of rolled over portions of said two sections.
3. The needle structure of claim 1 as a hypodermic 5 UNITED STATES PATENTS needle. 3,297,030 1/1967 Czorny et a1. l28214.4
4. The needle structure of claim 1 wherein said needle 3,314,427 4/1967 St ff d 128 214 4 structure is frangible along a pair of oppositely spaced 3,330,273 7/1967 s i i 128 214 4 longitudinal lines.
5. The needle structure of claim 1 wherein said needle 10 DALTON L. TRULUCK, Primary Examiner.
|Cited Patent||Filing date||Publication date||Applicant||Title|
|US3297030 *||13 Mar 1964||10 Jan 1967||Sorenson Res Corp||Catheter placement unit with removable cannulated needle|
|US3314427 *||28 Sep 1964||18 Apr 1967||Baxter Don Inc||Intravenous catheter apparatus|
|US3330278 *||22 Jun 1964||11 Jul 1967||Santomieri Louis S||Hypodermic needle for a cannula placement unit|
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US3459184 *||4 Nov 1966||5 Aug 1969||Voys Inc Le||Intravenous catheter placement unit|
|US3584625 *||22 May 1969||15 Jun 1971||Illinois Tool Works||Detachable guide needle|
|US3596658 *||22 May 1969||3 Aug 1971||Illinois Tool Works||Detachable guide needle|
|US3603311 *||19 Feb 1970||7 Sep 1971||Illinois Tool Works||Sliding wedge-type removable guide needle|
|US3656479 *||19 Feb 1970||18 Apr 1972||Huggins James A||Detachable guide needle|
|US3677243 *||24 Sep 1971||18 Jul 1972||Extracorporeal Med Spec||Separable surgical needle|
|US3677244 *||4 Aug 1969||18 Jul 1972||Extracorporeal Med Spec||Removable catheter needle|
|US3685513 *||12 May 1970||22 Aug 1972||Baxter Laboratories Inc||Indwelling catheter with breakaway needle and lanyard advancing means|
|US3766915 *||21 Dec 1971||23 Oct 1973||Illinois Tool Works||Plastic needle holder|
|US4306562 *||31 Jul 1980||22 Dec 1981||Cook, Inc.||Tear apart cannula|
|US4411654 *||30 Apr 1981||25 Oct 1983||Baxter Travenol Laboratories, Inc.||Peelable catheter with securing ring and suture sleeve|
|US4412832 *||30 Apr 1981||1 Nov 1983||Baxter Travenol Laboratories, Inc.||Peelable catheter introduction device|
|US4449973 *||26 Jun 1982||22 May 1984||Luther Medical Products, Inc.||Small gauge, pre-split cannula and process for manufacture|
|US4581019 *||22 Apr 1982||8 Apr 1986||Curelaru Johan||Device for introducing a catheter-cannula into a blood vessel|
|US4702735 *||20 Dec 1985||27 Oct 1987||Drs Infusion Systems, Inc.||Assembly of breakaway needle and catheter|
|US4743265 *||23 Apr 1986||10 May 1988||Dij Catheter Corp||Articulated catheter placement device|
|US4983168 *||5 Jan 1989||8 Jan 1991||Catheter Technology Corporation||Medical layered peel away sheath and methods|
|US5250033 *||28 Oct 1992||5 Oct 1993||Interventional Thermodynamics, Inc.||Peel-away introducer sheath having proximal fitting|
|US5320602 *||14 May 1993||14 Jun 1994||Wilson-Cook Medical, Inc.||Peel-away endoscopic retrograde cholangio pancreatography catheter and a method for using the same|
|US5409469 *||4 Nov 1993||25 Apr 1995||Medtronic, Inc.||Introducer system having kink resistant splittable sheath|
|US5630830 *||10 Apr 1996||20 May 1997||Medtronic, Inc.||Device and method for mounting stents on delivery systems|
|US6071287 *||23 Dec 1998||6 Jun 2000||Medtronic, Inc.||Introducer for single operator stent delivery system|
|US6273874||18 Aug 1999||14 Aug 2001||Becton, Dickinson And Company||Protected peelable U-wing introducer|
|US20140343568 *||13 May 2014||20 Nov 2014||Intuitive Surgical Operations, Inc.||Guide apparatus for delivery of a flexible instrument and methods of use|
|USRE31855 *||22 Nov 1982||26 Mar 1985||Cook, Inc.||Tear apart cannula|
|DE3347150A1 *||27 Dec 1983||4 Jul 1985||Beiersdorf Ag||Bladder puncturing set|
|WO1982003775A1 *||23 Apr 1982||11 Nov 1982||Baxter Travenol Lab||Peelable catheter with heat shrink ring and suture sleeve|
|WO1982003778A1 *||26 Apr 1982||11 Nov 1982||Baxter Travenol Lab||Peelable catheter introduction device|