|Publication number||US3825001 A|
|Publication date||Jul 23, 1974|
|Filing date||Dec 5, 1972|
|Priority date||Dec 5, 1972|
|Publication number||US 3825001 A, US 3825001A, US-A-3825001, US3825001 A, US3825001A|
|Inventors||Bennet S, Smith W, Thomas J|
|Original Assignee||Johnson & Johnson|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (8), Referenced by (88), Classifications (6)|
|External Links: USPTO, USPTO Assignment, Espacenet|
United States Patent 1191 I 1111 3,825,001
Bennet et al. 7. 1451 July 23, 1974 CATHETER PLACEMENT UNIT 3,757,771 9/1973 Ruegg 128/2144 x  Inventors: Stanford M. Bennet, Milltown;
William Smith, c lif J h J, Primary Examzner-Aldr1ch F. Medbery Thomas, Somerville, all of NJ. g
 Assignee: Johnson & Johnson, New  ABSTRACT Brunswick, NJ. 1
A catheter placement un1t pnmarlly useful w1th equ1p-  Filed: Dec. 5, 1972 ment for monitoring central venous pressure comprises a length of flexible hollow tubing having a fe-  Appl' 312426 male fitting at one end for attachment-to the equipment and a male fitting adjacent the other end for at- [5 US Cl 128/ 128/ 128/221, tachment to the hub of a flexible intravenous plastic 128/349 R, 128/DIG. 16 catheter that has been introduced into the vein of a  Int. Cl A6lm 25/02 patient. The male fitting has an axial opening through  Field of Search...... 128/214.4, 349 R, DIG. 16, which the tubing passes and across the opening is posi- 128/218 NV, 221 tionedan elastomeric diaphragm having a slit which tightly engages the outer periphery of the tubing to  References Cited form a seal between the male fitting and the tubing 3,585,996 6/1971 Reynolds UNITED STATES PATENTS g and to yieldingly resist the movement of the tubing 2 915 063 12/1959 ICutteL, 128/214.4 relative the male fitting- A style is Preferably P 128/214 4 vided within the lumen of the tubing and a flexible 123/2144 plastic sheath preferably covers the tubing to provide 128/2144 a sterile procedure for feeding the tubing through the 128/214.'4 male fitting and plastic catheter. 128/214.4
.. 128/2144 5 Claims, 5 Drawing Figures 3,055,361 9/1962 Ballard 3,094,122 6/1963 Gauthier et a1 3,185,152 5/1965 Ring 3,335,723 8/1967 Waldman, Jr.,... 3,515,137 6/1970 Santomieri....
'16. 12473. if Z4 4 06 CATHETER PLACEMENT UNIT This invention relates to catheters and, more particularly, to a unique catheter placement unit which minimizes the trauma to the veins and other body tissue and also minimizes the leakage of blood from the patient during the period the catheter is in use.
Many prior devices and procedures have heretofore been used to introduce relatively long flexible catheters, such as, catheters useful in combination with equipment for measuring and monitoring central venous pressure, into the venous system of a patient.
These prior systems have usually required the use of a metal introducer needle which was inserted into a vein and provided a passage for,the catheter into the venous system. Because the needle was substantially larger in outside diameter than the catheter, it was impossible to remove the needle without causing a leakage of blood between the skin and the outersurface of the catheter. Therefore, the needle has usually been permitted to remain in the vein during the period of use of the catheter, thus, creating a twofold hazard in that the extremely sharp point on the needle could cause tissue damage and alsosever the catheter and render it useless.
The present invention provides a unique structure and procedure which eliminates the disadvantages heretofore experienced with prior catheter placement systems. This structure, includes the use of a conventional over-the-needle plastic catheter in combination with uniquely constructed catheter tubing having a female fitting at its proximal end for connection to the fitting of an administration set or pressure monitoring equipment. A second fitting is slidably mounted on the distalend of the catheter tubing and provides structure for at leastthe following three functions: (1) anattachment between the catheter tubing and the hub of the conventional plastic catheter; (2) a seal to prevent the leakage of blood between the cathetertubing and the plastic catheter; and (3) a component for yieldingly resisting the movement of the catheter tubing relative to the plastic catheter so that the catheter tubing cannot be easily withdrawn from the venous system of the patient by an inadvertant action.
The invention also provides a sterile procedure for introducing the catheter tubing into the venous system and an optional method for connecting the catheter tubing to pressure monitoring equipment, or the like,
prior to the introduction of the catheter.
' 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 view showing a patients arm and vein in section with a conventional plastic catheter introduced into the vein and with the catheter placement unit of the subject invention in position for connection to the hub of the plastic catheter;
FIG. 2 is a view similar to FIG. 1 but showing the catheter placement unit connected to the hub of the plastic catheter and the catheter tubing of the catheter placement unit being fed through the plastic catheter into the vein of a patient;
FIG. 3 is a fragmentary cross sectional view showing the connection between the hub of the plastic catheter and the slidable fitting mounted adjacent the distal end of the catheter tubing of the catheter placement unit of the present invention;
FIG. 4 is a fragmentary cross sectional view taken along line 4-4 in FIG. 3 but showing the catheter tubing and stylet illustrated in FIG. 3 removed from the sealing component within the fitting; and
FIG. 5 is a fragmentary view illustrating the end of the plastic bag shown in FIGS. 1 and 2 before it is assembled to the fitting which is slidably mounted on the distal end of the catheter tubing of the catheter placement unit of the present invention.
Referring to FIG. 1, the catheter placement unit of the present invention is shown generally at 10 and comprises as its main components an elongated flexible length of plastic tubing 11, having an open lumen extending from one end to the other and having a female fitting 12 secured to the proximal end thereof and a male fitting 13 slidably mounted adjacent the distal end thereof. Catheter placement unit 10 further comprises a transparent flexible plastic sheath 14 which has a frangible connection 15 with fitting 13. Preferably, a stylet 16 (see FIG. 3) is positioned within the entire length of the lumen of tubing 11 and has a plug 17 secured to its proximal end and firmly seated within female fitting 12.
Catheter placement unit 10 is intended to be utilized in combination with a conventional flexible plastic catheter shown generally in FIG. 1 at 20. Catheter 20 is preferably of the over-the-needle type and may be constructed in a manner illustrated in U.S. Pat. No. 3,094,] 22. In this patent the manner of manufacturing such a catheter and of introducing such a catheter into the vein of a patient is very thoroughly described. In FIG. 1, the arm A and vein V of a patient is illustrated in cross section with flexible tubing portion 21 of catheter 20 introduced therein. Tubing 11 and catheter 21 are preferably made from a bio-compatible material, such as, polytetrafluroethylene and are preferably very flexible so that the trauma to the vein and other body tissue of the patient is greatly minimized. A standard plastic or metal hub 22 is secured to the proximal end of catheter 21 and is adapted to be connected to the male tapered fitting 24 secured to the end of fitting 13.
Referring to FIG. 3, the internal construction of fitting 13 and the manner in which it is connected to fitting 22 are clearly illustrated. However, in order to best understand the complete operation of catheter placement unit 10 and its cooperation with catheter 20, fitting 13 will first be described in detail.
Referring to FIG. 3, fitting 13 comprises an essentially cylindrical housing 30 which has an axial opening 31 extending therethrough. In the initial assembly of fitting l3 and catheter tubing 11, the tubing is passed through the axial opening 31 to a location adjacent the tip 32 of male fitting 24. Within housing 30 is mounted.
an elastomeric diaphragm 33 which is securely held within the proximal end of housing 30 by a metal ferrule 34.
Referring to FIG. 4, the location of diaphragm 33 relative to catheter tubing 11 and stylet 16 is shown in cross section. It will be appreciated that elastomeric diaphragm 33 extends completely across axial opening 31 extending through housing 30 and, except for the slit 35 formed in the center of diaphragm 33, the diaphragm completely seals the axial opening. Slit 35 may be opened sufficiently to permit the passage of catheter tubing 11 therethrough but retains a close contact with the outer priphery of the tubing so that any passage of blood or other fluid is prohibited. Also, the tight fit between slit 35 and the outer periphery of tubing 11 provides a means for yieldingly resisting the movement of tubing 11 relative to fitting 13 and catheter 21. This aspect of the invention will be more thoroughly discussed herein below.
As stated above, the distalend of fitting 13 is provided with a tapered connector or fitting 24 which is adapted to be received in the open end of hub 22 connected to plastic catheter 21. As shown in FIG. 3, fitting 13 is also provided with a threaded lockingelement 36 which is adapted to engage the outwardly extending flange 23 on the extreme end of hub 22. This engagement securely locks hub 22 within fitting l3 and prevents accidental separation of the two parts.
Referring to FIG. 5, a portion of plastic bag 14 is illustrated prior to its attachmentto the proximal end of fitting 13. Bag 14 is formed from a flexible plastic material that may be conveniently attached to fitting 13 as illustrated in FIG. 3. The open end 40 of the bag is placed over the proximal end of housing 30 and secured thereto by a substantially cylindrical elastomeric band 41 which completely encircles housing 30. The bag is so positioned that the frangible section 15 is positioned adjacent the extreme end of housing 30.
The introduction and use of catheter placement unit will now be described in detail. After catheter 20 has been appropriately introduced into vein V in a manner similar to that illustrated in FIGS. 7-9 of US. Pat. No. 3,094,122, fitting l3is connected to hub 22 by positioning connector 24 within the tapered open end of hub 22 and turning fitting 13 to securely lock the two components together as shown in FIG. 3 With the components thus assembled, the operator may then grasp the plastic bag, as illustrated in FIG. 2, and move catheter tubing 11 forward through axial opening 31 within housing 30 and, thus, through catheter 21 into the venous system of the patient.
After catheter tubing 11 is appropriately positioned within the venous system of the patient, plastic bag 14 may be removed from fitting 13 by merely pulling or snapping the bag in a direction away from the fitting.
If it is desirable to attach the pressure monitoring tubing prior to the placement of catheter tubing 11 into the venous system of a patient, the operator may expose fitting 12 by pulling the open end 45 of bag 14 4 over the fitting and removing plug 17 and stylet 16. The
' tubing may then be connected to fitting 12 prior to the connection of fitting 13 to hub 22 and prior to the feeding of catheter tubing 11 into the vein. Both of the above described procedures are effective to provide means for feeding the catheter tubing into the venous system with a sterile procedure.
It will be apparent from the foregoing description that the present invention provides a unique catheter placement unit that accomplishes the desired results of minimizing trauma to the vein and surrounding tissue of a patient and also minimizes the leakage of blood and other body fluids during the procedure. This is accomplished by utilizing a flexible plastic introducer catheter and a uniquely designed fitting for attaching the catheter tubing to the hub of the plastic catheter. As stated before, this fitting serves the functions of preventing the leakage of blood between the catheters and providing an element for yieldingly resisting the movement of the catheter tubing relative to the plastic introducer catheter. This latter advantage greatly minimizes the opportunity for inadvertent removal of the catheter tubing. l
1. A catheter placement unit for use with an intravenous catheter having a hub with an internal tapered surface and a terminal flange, an elongated flexible length of hollow tubing; a first fitting secured to the proximal end of said tubing; and a second fitting slidably mounted adjacent the distal end of said tubing, said second fitting having an axial opening therethrough'and an elastomeric diaphragm secured across said opening and having an aperture for the passage of said tubing, defining a means to cause said diaphragm to tightly engage the outer periphery of saidtubing, said second fitting further having a tapered male connector extending axially from its distal end for mating with the internal tapered surface of the intravenous catheter hub and a threaded locking element encompassing said tapered connector defining a means for coacting with said terminal flange on said catheter hub to securely lock said second fitting to said catheter hub.
ting and being of sufficient length to enclose the entire length of said tubing and said first fitting.
4. The catheter assembly of claim 3 wherein said sheath has a frangible connection to said second fitting.
5. The catheter assembly of claim 4 further comprising a stylet completely filling the lumen of said tubing.
|Cited Patent||Filing date||Publication date||Applicant||Title|
|US2915063 *||Dec 23, 1957||Dec 1, 1959||Cutter Lab||In-dwelling cannula|
|US3055361 *||Apr 22, 1960||Sep 25, 1962||Deseret Pharmaceutical Company||Intravenous catheters|
|US3094122 *||Jan 18, 1961||Jun 18, 1963||Gauthier Theophile E||Flexible cannula and intravenous needle combined|
|US3185152 *||Jun 19, 1962||May 25, 1965||Sorenson Res Corp||Intravenous catheter placement unit and method of use|
|US3335723 *||Dec 2, 1964||Aug 15, 1967||Baxter Laboratories Inc||Indwelling catheter unit|
|US3515137 *||Oct 26, 1966||Jun 2, 1970||Deseret Pharma||Intravenous catheter unit with inserter means for sequential feeding of catheter|
|US3585996 *||Jul 11, 1968||Jun 22, 1971||Levoy S Corp||Arterial catheter placement unit and method of use|
|US3757771 *||Jan 10, 1972||Sep 11, 1973||Biophysics Corp Int||Sterile inserter apparatus|
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US3903885 *||Jan 25, 1974||Sep 9, 1975||Braun Melsungen Ag||Device for introducing flexible catheters|
|US3991762 *||Sep 30, 1974||Nov 16, 1976||Radford F Richard||Aspirating device for patient ventilation apparatus|
|US4000739 *||Jul 9, 1975||Jan 4, 1977||Cordis Corporation||Hemostasis cannula|
|US4194509 *||Apr 11, 1978||Mar 25, 1980||C. R. Bard, Inc.||Preconnected catheter drainage system|
|US4205675 *||Jun 15, 1978||Jun 3, 1980||Johnson & Johnson||Catheter placement unit with needle removal provision and method of use|
|US4230110 *||Aug 22, 1978||Oct 28, 1980||Johnson & Johnson||Hub with suturing provision for medical devices|
|US4235232 *||Aug 22, 1978||Nov 25, 1980||Johnson & Johnson||Hub device for preventing liquid leakage|
|US4274408 *||Mar 26, 1979||Jun 23, 1981||Beatrice Nimrod||Method for guide-wire placement and novel syringe therefor|
|US4304231 *||Jan 9, 1980||Dec 8, 1981||Sherwood Medical Industries, Inc.||Catheter with wire stylet|
|US4326520 *||Dec 22, 1980||Apr 27, 1982||Alley Ralph D||Brake-actuated catheter feeder|
|US4333455 *||Dec 26, 1979||Jun 8, 1982||Sherwood Medical Industries Inc.||Injectable catheter and method of placing same|
|US4613329 *||Sep 30, 1983||Sep 23, 1986||Sherwood Medical Company||Catheter placement device|
|US4652256 *||Oct 29, 1985||Mar 24, 1987||Manresa, Inc.||Closed system catheter with guide wire|
|US4784638 *||Sep 17, 1987||Nov 15, 1988||Neurodynamics, Inc.||Angled hole ventricular catheter and method of making same|
|US4834709 *||Jan 19, 1988||May 30, 1989||Sherwood Medical Company||Preformable catheter|
|US4836199 *||May 14, 1987||Jun 6, 1989||Ballard Medical Products||Aspirating/ventilating apparatus and method|
|US4913704 *||Oct 26, 1988||Apr 3, 1990||Sherwood Medical Company||Disposable indwelling catheter placement unit into the blood vessel|
|US4967743 *||Dec 1, 1988||Nov 6, 1990||Ballard Medical Products||Neonatal closed system for involuntary aspiration and ventilation, and method|
|US5000745 *||Nov 18, 1988||Mar 19, 1991||Edward Weck Incorporated||Hemostatis valve|
|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|
|US5108375 *||Sep 19, 1991||Apr 28, 1992||Harrison Samuel W||Closed system canulating device|
|US5116323 *||Jan 22, 1991||May 26, 1992||Becton, Dickinson And Company||Arterial catheter|
|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|
|US5152277 *||Jul 21, 1988||Oct 6, 1992||Terumo Kabushiki Kaisha||Catheter tube|
|US5180387 *||Nov 2, 1988||Jan 19, 1993||Neurodynamics, Inc.||Angled hole ventricular catheter with non-circular bore|
|US5215522 *||Apr 5, 1991||Jun 1, 1993||Ballard Medical Products||Single use medical aspirating device and method|
|US5234411 *||Dec 23, 1991||Aug 10, 1993||Vaillancourt Vincent L||Catheter assembly|
|US5277177 *||Jul 16, 1991||Jan 11, 1994||Ballard Medical Products||Single use medical aspirating device and method|
|US5333606 *||Jun 23, 1993||Aug 2, 1994||Sherwood Medical Company||Method for using a respirator accessory access port and adaptor therefore|
|US5336193 *||Jun 22, 1993||Aug 9, 1994||Dlp, Inc.||Apparatus for sanitary removal of indwelling tubes|
|US5343857 *||Jul 27, 1993||Sep 6, 1994||Sherwood Medical Company||Respiratory accessory access port and adaptor therefore|
|US5355876 *||May 6, 1992||Oct 18, 1994||Superior Healthcare Group, Inc.||Patient ventilating apparatus with modular components|
|US5358495 *||Feb 1, 1993||Oct 25, 1994||Lynn Lawrence A||Sterile guidewire exchange system|
|US5364366 *||Jun 22, 1993||Nov 15, 1994||Dlp, Inc.||Apparatus for removing an indwelling tube|
|US5395349 *||Aug 19, 1993||Mar 7, 1995||Endovascular Technologies, Inc.||Dual valve reinforced sheath and method|
|US5429608 *||Apr 18, 1994||Jul 4, 1995||Dlp, Inc.||Apparatus for removing an indwelling tube|
|US5611336 *||Mar 30, 1995||Mar 18, 1997||Ballard Medical Products, Inc.||Single use medical aspirating device and method|
|US5630798 *||Jun 7, 1995||May 20, 1997||Smith & Nephew Dyonics Inc.||Fluid management system|
|US5630799 *||Nov 9, 1995||May 20, 1997||Smith & Nephew Dyonics Inc.||Fluid management system|
|US5643203 *||Jun 7, 1995||Jul 1, 1997||Smith & Nephew Dyonics Inc.||Fluid management system|
|US5643302 *||Jun 7, 1995||Jul 1, 1997||Smith & Nephew Dyonics Inc.||Fluid management system|
|US5645048 *||Jul 5, 1994||Jul 8, 1997||The Kendall Company||Patient ventilating apparatus with modular components|
|US5694922 *||Aug 19, 1994||Dec 9, 1997||Ballard Medical Products||Swivel tube connections with hermetic seals|
|US5715815 *||Feb 12, 1996||Feb 10, 1998||Ballard Medical Products, Inc.||Sheath sterility preservation filter and seal for suction catheters|
|US5735271 *||May 22, 1996||Apr 7, 1998||Ballard Medical Products||Multiple access adaptors for monitoring, sampling, medicating, aspirating, and ventilating the respiratory tract of a patient|
|US5840060 *||Jun 7, 1995||Nov 24, 1998||Smith & Nephew, Inc.||Fluid management system|
|US5882339 *||Jun 7, 1995||Mar 16, 1999||Smith & Nephew, Inc.||Fluid management system|
|US5935122 *||Aug 1, 1997||Aug 10, 1999||Endovascular Technologies, Inc.||Dual valve, flexible expandable sheath and method|
|US6090075 *||Mar 31, 1998||Jul 18, 2000||House; Jamie Glen||Disposable urinary catheterization assembly|
|US6197016||Jul 6, 1999||Mar 6, 2001||Endovascular Technologies, Inc.||Dual valve, flexible expandable sheath and method|
|US6468252 *||Aug 3, 2000||Oct 22, 2002||Sanfilippo, Ii Dominic J.||Clamp for vascular access device|
|US6494203||Nov 12, 1999||Dec 17, 2002||Ballard Medical Products||Medical aspirating/ventilating closed system improvements and methods|
|US6537254 *||Jul 6, 1999||Mar 25, 2003||Datascope Investment Corp.||Universal protective catheter sleeve|
|US6588427 *||Feb 25, 2002||Jul 8, 2003||Kimberly-Clark Worldwide, Inc.||Heat and moisture exchanger adapter to closed suction catheter assembly and system having improved catheter cleaning|
|US6589164 *||Feb 15, 2000||Jul 8, 2003||Transvascular, Inc.||Sterility barriers for insertion of non-sterile apparatus into catheters or other medical devices|
|US6612304||Oct 5, 2000||Sep 2, 2003||Kimberly-Clark Worldwide, Inc.||Respiratory care multiple access port assembly and adapter|
|US6652492||Jul 23, 2001||Nov 25, 2003||Endovascular Technologies, Inc.||Dual valve, flexible sheath and method|
|US6769430||Oct 31, 2000||Aug 3, 2004||Kimberly-Clark Worldwide, Inc.||Heat and moisture exchanger adaptor for closed suction catheter assembly and system containing the same|
|US6808520||Mar 1, 2001||Oct 26, 2004||Endovascular Technologies, Inc.||Dual valve, flexible expandable sheath and method|
|US7156836 *||Apr 19, 2001||Jan 2, 2007||Richard Keng Siang Teo||Cannula assembly|
|US7510568||Feb 17, 2005||Mar 31, 2009||Zoll Circulation, Inc.||Valved connector assembly and sterility barriers for heat exchange catheters and other closed looped catheters|
|US7549419||Jun 23, 2004||Jun 23, 2009||Kimberly-Clark Worldwide, Inc.||Heat and moisture exchanger adaptor for closed suction catheter assembly and system containing the same|
|US8262716||Mar 31, 2009||Sep 11, 2012||Zoll Circulation, Inc.||Valved connector assembly and sterility barriers for heat exchange catheters and other closed loop catheters|
|US8882716 *||Jul 26, 2011||Nov 11, 2014||Steerable Instruments Bvba||Capillary tube assembly|
|US9345859||Sep 6, 2013||May 24, 2016||Corindus, Inc.||Hemostasis valve and system for guide catheter control|
|US9427562 *||Dec 13, 2013||Aug 30, 2016||Corindus, Inc.||System for guide catheter control with introducer connector|
|US20030093058 *||Apr 19, 2001||May 15, 2003||Siang Teo Richard Keng||Cannula assembly|
|US20040255952 *||Jun 23, 2004||Dec 23, 2004||Kimberly-Clark Worldwide, Inc.||Heat and moisture exchanger adaptor for closed suction catheter assembly and system containing the same|
|US20050143798 *||Feb 17, 2005||Jun 30, 2005||Radiant Medical, Inc.||Valved connector assembly and sterility barriers for heat exchange catheters and other closed loop catheters|
|US20060015068 *||Mar 27, 2003||Jan 19, 2006||Shai Amisar||Intravenous catheter assembly|
|US20080125750 *||Sep 27, 2006||May 29, 2008||Henning Arthur Gaissert||Medical catheter removal|
|US20080319387 *||Feb 14, 2006||Dec 25, 2008||Shai Amisar||Method and Apparatus for Inserting a Catheter Device|
|US20090247963 *||Mar 31, 2009||Oct 1, 2009||Zoll Circulation, Inc.||Valved connector assembly and sterility barriers for heat exchange catheters and other closed loop catheters|
|US20140005613 *||Jul 26, 2011||Jan 2, 2014||Steerable Instruments Bvba||Capillary tube assembly|
|US20140171919 *||Dec 13, 2013||Jun 19, 2014||Corindus, Inc.||System for guide catheter control with introducer connector|
|DE2623511A1 *||May 26, 1976||Feb 24, 1977||Cordis Corp||Haemostatische kanuele|
|DE3401440A1 *||Jan 17, 1984||Sep 13, 1984||Terumo Corp||Medizinisches instrument|
|EP0145149A1 *||Sep 26, 1984||Jun 19, 1985||Sherwood Medical Company||Catheter placement device|
|WO1981001795A1 *||Oct 16, 1980||Jul 9, 1981||Sherwood Medical Ind Inc||Injectable catheter and method of placing same|
|WO1986001119A1 *||Dec 13, 1984||Feb 27, 1986||Tokuso Taniguchi||Automated catheter construction|
|WO1993017742A1 *||Apr 15, 1992||Sep 16, 1993||Sorenson Laboratories, Inc.||Improved apparatus for ventilating and aspirating|
|WO1995005207A2 *||Aug 18, 1994||Feb 23, 1995||Endovascular Technologies, Inc.||Dual valve reinforced sheath and method|
|WO1995005207A3 *||Aug 18, 1994||Apr 27, 1995||Endovascular Tech Inc||Dual valve reinforced sheath and method|
|WO2001002045A1 *||Jun 27, 2000||Jan 11, 2001||Datascope Investment Corp.||Universal protective catheter sleeve|
|WO2003084428A2 *||Mar 27, 2003||Oct 16, 2003||Flexicath Ltd.||Improved intravenous catheter assembly|
|WO2003084428A3 *||Mar 27, 2003||Dec 31, 2003||Shai Amisar||Improved intravenous catheter assembly|
|U.S. Classification||604/170.2, 604/171, 604/163|