US3537452A - Needle cover and bevel guard - Google Patents

Needle cover and bevel guard Download PDF

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Publication number
US3537452A
US3537452A US776696A US3537452DA US3537452A US 3537452 A US3537452 A US 3537452A US 776696 A US776696 A US 776696A US 3537452D A US3537452D A US 3537452DA US 3537452 A US3537452 A US 3537452A
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Prior art keywords
needle
catheter
guard
bevel
needle cover
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Expired - Lifetime
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US776696A
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Geoffrey W Wilks
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CR Bard Inc
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CR Bard Inc
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    • 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
    • A61M25/00Catheters; Hollow probes
    • A61M25/01Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/02Holding devices, e.g. on the body
    • 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
    • A61M25/00Catheters; Hollow probes
    • A61M25/01Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/02Holding devices, e.g. on the body
    • A61M2025/024Holding devices, e.g. on the body having a clip or clamp system
    • 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
    • A61M5/32Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/3205Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
    • A61M5/321Means for protection against accidental injuries by used needles
    • A61M5/3216Caps placed transversally onto the needle, e.g. pivotally attached to the needle base

Definitions

  • NEEDLE COVER AND BEVEL GUARD When it is necessary to administer parenteral liquids, such as in intravenous feeding and the like, it is common to make a venipuncture with a needle and then to thread a sterile plastic catheter through the needle and into the vein. The needle is then withdrawn from the vein and taped to the patients body proximate the entry point, and administration apparatus is attached to the catheter. In such surgical and hospital procedures, it is extremely important to avoid contamination of the intravenous catheter and needle unit prior to use. It is also important that the needle be maintained in axial alignment with said catheter after it has been withdrawn from the patient to prevent the accidental cutting of the catheter by the sharp edges of the needle bevel.
  • One method utilizes a tubular sleeve which fits onto the needle, fully enclosing it, for preuse sterility maintenance and utilizes an annular band which fits firmly around the needle and is slid axially so that it extends over the sharp end of the needle thereby maintaining the catheter in axial alignment with the needle.
  • annular band positioning axial force is required. This often results in the axial displacement of the catheter and this movement is undesirable.
  • the annular band is small, manipulation of it is often difficult.
  • Another method utilizes a symmetrical two portion needle guard which is integrally formed with the needle hub. This method is complex and therefore expensive and impractical since it is desirable to dispose of the catheter assembly after initial usage.
  • FIG. 1 represents a top plan view of the needle cover and guard
  • FIG. 2 represents an end elevation taken from the right of FIG. 1;
  • FIG. 3 represents an end elevation taken from the left of FIG. 1;
  • FIG. 4 represents a side elevation of the needle cover and guard, with needle in place and catheter extended.
  • the needle cover and bevel guard comprises an elongated tubular body 1 formed integrally with a base having a flat bottom surface 2, sloping sides 3 which intersect the sides of the body 1 about midway of the latters height, and a tapering (elongated delta) outline from a width about twice the outside diameter of the body 1 at one end 4 to a width the same as the diameter of the body at the other end 5.
  • the bore 6 of the tubular body is cylindrical from the end 4 to a point 7 near the end where its size is reduced in a short zone 8, the diameter of the cylindrical portion being determined by reference to the diameter of the needle hub with which the guard is to be used, and the diameter of the zone 8 being slightly less than the outside diameter of the catheter in said needle.
  • the tubular body 1 is provided with a longitudinal slot 9 the upper edges of which may be beveled adjacent the end 4, as indicated at 10.
  • the edges 11 of the slot lie in radial planes (FIG. 3).
  • the slot may be widened somewhat, as illustrated in FIG. 1, or the bevels may be continued throughout the length of the slot.
  • the needle cover is preferably supplied assembled on the needle of an intravenous catheterization set, the needle hub being frictionally engaged in the bore 6 and the needle extending freely into said bore.
  • the needle is protected from contamination with any nonsterile surface even after removal from the protective envelope in which such sets are customarily packed.
  • the needle cover is removed (as by sliding it axially off the hub), the venipuncture, advancement of the catheter and withdrawal of the needle are effected in the usual manner, and the needle cover is then reassembled with the needle and catheter to constitute a bevel guard, as shown in FIG. 4.
  • Such reassembly is made possible by the provision of the slot 9, the needle hub 12 being pressed into the slot past the beveled edges 10, the needle 13 moving easily through the slot, whether enlarged or beveled, into the bore 6, and the extended catheter 14 being pressed downward past the edges 11 into the constricted zone 8 where it is frictionally engaged.
  • the needle 13 is free to move somewhat in the bore 6, its bevel 15 cannot cut the firmly held catheter l4, and also cannot come in contact with the patient.
  • the fiat base 2 of the bevel guard resting against the patients arm, causes no discomfort and can be taped in place with minimum possibility of accidental dislodgement.
  • the elongated opening 9 is referred to as a slot which is suitable for easy insertion of the needle and catheter, it will be understood that its walls may, throughout at least part of its length and/or depth, be disposed closely enough to each other to constitute a slit".
  • the frictional engagement of the zone 8 with the catheter results conveniently from the reduced diameter of said zone, as described, but an effective reduction of diameter may be achieved by the provision of one or more inwardly projecting lugs, fingers, tabs or the like. In either case axial movement of the catheter is resisted, both during shipment and in use.
  • a combined needle cover and bevel guard for use with an intravenous catheterization assembly of the type which includes a hollow needle having a beveled point and a hub and a plastic catheter movable through said needle to project beyond said point, comprising a tubular body of flexible plastic and a flat base integral with said body, the tubular body being provided with a slot extending from end to end, and the bore of said body having a first diameter at one end sufficient to frictionally engage the needle hub, also having a second diameter at the other end and smaller than said first diameter to frictionally engage the catheter and having a third diameter intermediate the ends thereof and greater than the diameter of said needle, to envelope freely the needle.
  • a combined needle cover and bevel guard according to claim 1 in which the walls of the slot are beveled at least in the regions adjacent each end, to facilitate entry therethrough of the needle hub and projecting catheter.
  • a combined needle cover and bevel guard according to claim 1 in which the first and third bore diameters of the body are of substantially uniform size from the said one end to a point near said other end, the length of said uniform portion being at least equal to the total length of the needle and hub.
  • a combined needle cover and bevel guard according to claim 4 in which the fiat base has a width adjacent the catheter-engaging end of the tubular body approximately equal to the width of said body at the catheter-engaging end.

Description

United States Patent [72] Inventor Geoffrey W. Wilks Basking Ridge, New Jersey [21] Appl. No. 776,696 [22] Filed Nov. 18, 1968 [45] Patented Nov. 3, 1970 [73] Assignee C. R. Bard Inc.
Murray Hill, New Jersey a corporation of New York [54] NEEDLE COVER AND BEVEL GUARD 5 Claims, 4 Drawing Figs.
[52] U.S.Cl 128/214.4, 128/221 [51] Int. Cl A6lm 25/02 [50] Field of Search 128/214, 214.4, 218(N), 221, 349
[56] References Cited UNITED STATES PATENTS 2,928,391 3/1960 Krug 128/214 3,055,361 9/1962 Ballard 4 128/221X 3,324,853 6/1967 Czorny et a1... l28/2l4.4 3,352,306 11/1967 Hirsch 123/221X Primary Examiner-Samuel Koren Assistant Examiner-James H. Czerwonky Attorney-W. Saxton Seward ABSTRACT: A combined needle cover and bevel guard for intravenous catheterization units. The device has a tubular body having a flat base and a longitudinally slotted top, the
NEEDLE COVER AND BEVEL GUARD When it is necessary to administer parenteral liquids, such as in intravenous feeding and the like, it is common to make a venipuncture with a needle and then to thread a sterile plastic catheter through the needle and into the vein. The needle is then withdrawn from the vein and taped to the patients body proximate the entry point, and administration apparatus is attached to the catheter. In such surgical and hospital procedures, it is extremely important to avoid contamination of the intravenous catheter and needle unit prior to use. It is also important that the needle be maintained in axial alignment with said catheter after it has been withdrawn from the patient to prevent the accidental cutting of the catheter by the sharp edges of the needle bevel.
Existing methods for effecting these dual purposes are not entirely satisfactory. One method utilizes a tubular sleeve which fits onto the needle, fully enclosing it, for preuse sterility maintenance and utilizes an annular band which fits firmly around the needle and is slid axially so that it extends over the sharp end of the needle thereby maintaining the catheter in axial alignment with the needle. To achieve proper annular band positioning axial force is required. This often results in the axial displacement of the catheter and this movement is undesirable. In addition, since the annular band is small, manipulation of it is often difficult.
Another method utilizes a symmetrical two portion needle guard which is integrally formed with the needle hub. This method is complex and therefore expensive and impractical since it is desirable to dispose of the catheter assembly after initial usage.
Accordingly, it is an object of the present invention to provide a needle bevel guard which will serve to maintain the sterile discipline of the needle and catheter assembly after the assembly has been removed from the protective envelope in which it is shipped to the consumer.
It is also an object to provide a means whereby the catheter is protected from the sharp edge of the needle bevel while it is extending therethrough.
It is a further object to provide a needle guard which can be positioned without applying any axially oriented force to the catheter-needle assembly. I
It is also an object to provide a guard which can be utilized without the need of relying on complicated and detailed instructions.
It is a further object to provide a guard which can be manufactured at little cost, and is therefore disposable after use.
It is also an object to provide a guard which is operable with little inconvenience or discomfort to the patient and with little difficulty to the person effecting the intravenous connection.
A practical embodiment of the invention is shown in the accompanying drawing wherein:
FIG. 1 represents a top plan view of the needle cover and guard;
FIG. 2 represents an end elevation taken from the right of FIG. 1;
FIG. 3 represents an end elevation taken from the left of FIG. 1;
FIG. 4 represents a side elevation of the needle cover and guard, with needle in place and catheter extended.
Referring to the drawing, the needle cover and bevel guard comprises an elongated tubular body 1 formed integrally with a base having a flat bottom surface 2, sloping sides 3 which intersect the sides of the body 1 about midway of the latters height, and a tapering (elongated delta) outline from a width about twice the outside diameter of the body 1 at one end 4 to a width the same as the diameter of the body at the other end 5.
The bore 6 of the tubular body is cylindrical from the end 4 to a point 7 near the end where its size is reduced in a short zone 8, the diameter of the cylindrical portion being determined by reference to the diameter of the needle hub with which the guard is to be used, and the diameter of the zone 8 being slightly less than the outside diameter of the catheter in said needle.
Along its upper side the tubular body 1 is provided with a longitudinal slot 9 the upper edges of which may be beveled adjacent the end 4, as indicated at 10. In the vicinity of the zone 8 the edges 11 of the slot lie in radial planes (FIG. 3). Between the beveled edges 10 and radial edges II. the slot may be widened somewhat, as illustrated in FIG. 1, or the bevels may be continued throughout the length of the slot.
In use, the needle cover is preferably supplied assembled on the needle of an intravenous catheterization set, the needle hub being frictionally engaged in the bore 6 and the needle extending freely into said bore. In this condition the needle is protected from contamination with any nonsterile surface even after removal from the protective envelope in which such sets are customarily packed. When the patient has been prepared, the needle cover is removed (as by sliding it axially off the hub), the venipuncture, advancement of the catheter and withdrawal of the needle are effected in the usual manner, and the needle cover is then reassembled with the needle and catheter to constitute a bevel guard, as shown in FIG. 4. Such reassembly is made possible by the provision of the slot 9, the needle hub 12 being pressed into the slot past the beveled edges 10, the needle 13 moving easily through the slot, whether enlarged or beveled, into the bore 6, and the extended catheter 14 being pressed downward past the edges 11 into the constricted zone 8 where it is frictionally engaged. Although the needle 13 is free to move somewhat in the bore 6, its bevel 15 cannot cut the firmly held catheter l4, and also cannot come in contact with the patient. The fiat base 2 of the bevel guard, resting against the patients arm, causes no discomfort and can be taped in place with minimum possibility of accidental dislodgement.
While the elongated opening 9 is referred to as a slot which is suitable for easy insertion of the needle and catheter, it will be understood that its walls may, throughout at least part of its length and/or depth, be disposed closely enough to each other to constitute a slit". The frictional engagement of the zone 8 with the catheter results conveniently from the reduced diameter of said zone, as described, but an effective reduction of diameter may be achieved by the provision of one or more inwardly projecting lugs, fingers, tabs or the like. In either case axial movement of the catheter is resisted, both during shipment and in use.
Iclaim:
1. A combined needle cover and bevel guard for use with an intravenous catheterization assembly of the type which includes a hollow needle having a beveled point and a hub and a plastic catheter movable through said needle to project beyond said point, comprising a tubular body of flexible plastic and a flat base integral with said body, the tubular body being provided with a slot extending from end to end, and the bore of said body having a first diameter at one end sufficient to frictionally engage the needle hub, also having a second diameter at the other end and smaller than said first diameter to frictionally engage the catheter and having a third diameter intermediate the ends thereof and greater than the diameter of said needle, to envelope freely the needle.
2. A combined needle cover and bevel guard according to claim 1 in which the walls of the slot are beveled at least in the regions adjacent each end, to facilitate entry therethrough of the needle hub and projecting catheter.
3. A combined needle cover and bevel guard according to claim 1 in which the first and third bore diameters of the body are of substantially uniform size from the said one end to a point near said other end, the length of said uniform portion being at least equal to the total length of the needle and hub.
4. A combined needle cover and bevel guard according to claim 1 in which the flat base has a width adjacent the hub engaging end of the tubular body at least approximately twice the width of said body at the catheter-engaging end.
5. A combined needle cover and bevel guard according to claim 4 in which the fiat base has a width adjacent the catheter-engaging end of the tubular body approximately equal to the width of said body at the catheter-engaging end.
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Cited By (47)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3901226A (en) * 1974-03-29 1975-08-26 Anthony Scardenzan Protective guard for a hypodermic needle
FR2439591A1 (en) * 1978-10-25 1980-05-23 Technological Supply DEVICE FOR INTRODUCING A CATHETER OR PROBE INTO A BLOOD VESSEL
EP0064212A2 (en) * 1981-05-06 1982-11-10 B. Braun-SSC AG Catheter set
US4643722A (en) * 1983-04-05 1987-02-17 Smith Jr William I Closure system for storage, transport and disposal of hypodermic needles
EP0247590A3 (en) * 1986-05-29 1988-11-30 Terumo Kabushiki Kaisha Catheter-securing member and catheter assembly mounted wcatheter-securing member and catheter assembly mounted with the same ith the same
US4982842A (en) * 1990-06-04 1991-01-08 Concord/Portex Safety needle container
US5017189A (en) * 1989-02-03 1991-05-21 Michel Gordon Protective cap for a hypodermic syringe
US5037401A (en) * 1990-04-20 1991-08-06 Decamp Dennis M Hypodermic needle cannula guard
EP0443735A1 (en) * 1990-02-17 1991-08-28 Smiths Industries Public Limited Company Needle guards and assemblies
US5139489A (en) * 1991-01-07 1992-08-18 Smiths Industries Medical Systems, Inc. Needle protection device
US5171303A (en) * 1990-04-20 1992-12-15 Decamp Dennis M Hypodermic needle cannula guard
US5179963A (en) * 1991-10-11 1993-01-19 Berger J Lee Percutaneous carpal tunnel plasty method
US5232455A (en) * 1991-01-07 1993-08-03 Smiths Industries Medical Systems, Inc. Syringe with protective housing
US5232454A (en) * 1990-08-01 1993-08-03 Smiths Industries Medical Systems, Inc. Safety needle container
US5490841A (en) * 1994-07-29 1996-02-13 Landis; Robert M. Safety sheath device
US5545136A (en) * 1993-09-14 1996-08-13 Berger; J. Lee Grooved catheter director apparatus
USRE37252E1 (en) 1992-05-18 2001-07-03 Sims Portex Inc. Safety needle cartridge system
US6328713B1 (en) 1993-04-16 2001-12-11 Sims Portex Inc. Needle sheath device
US6592556B1 (en) 2000-07-19 2003-07-15 Tyco Healthcare Group Lp Medical needle safety apparatus and methods
US6648855B2 (en) 1999-08-23 2003-11-18 Becton, Dickinson And Company Safety needle assembly
US6699217B2 (en) 1999-08-23 2004-03-02 Becton, Dickinson And Company Safety needle assembly
US6780169B2 (en) 1999-08-23 2004-08-24 Becton, Dickinson And Company Safety shield assembly
US6796968B2 (en) 1999-11-04 2004-09-28 Tyco Healthcare Group Lp Reaccessible medical needle safety devices and methods
US6949086B2 (en) 1999-11-04 2005-09-27 Tyco Healthcare Group Lp Seldinger safety shield for medical needles
US7001363B2 (en) 2002-04-05 2006-02-21 F. Mark Ferguson Safety shield for medical needles
US7029461B2 (en) 1999-11-04 2006-04-18 Tyco Healthcare Group Lp Safety shield for medical needles
US7144389B2 (en) 2001-03-14 2006-12-05 Tyco Healthcare Group, Lp Safety shield for medical needles
US7163526B2 (en) 2002-11-06 2007-01-16 Becton, Dickinson And Company Flashback blood collection needle with needle shield
US7220249B2 (en) 2001-06-06 2007-05-22 Becton, Dickinson And Company Hinged needle shield assembly having needle cannula lock
US7223258B2 (en) 1998-08-28 2007-05-29 Becton Dickinson And Company Safety shield assembly
US7300423B2 (en) 2003-02-14 2007-11-27 Tyco Healthcare Group Lp Safety device with trigger mechanism
US7320682B2 (en) 1999-11-18 2008-01-22 Tyco Healthcare Group Lp Safety device
US7361159B2 (en) 2001-03-02 2008-04-22 Covidien Ag Passive safety shield
US20080097342A1 (en) * 2006-07-03 2008-04-24 Vadim Alexander Gordin Cover/sheath for a needle and method of resheathing a used needle
US7537581B2 (en) 2001-07-09 2009-05-26 Becton, Dickinson And Company Needle shield assembly having hinged needle shield and flexible cannula lock
US7553296B2 (en) 2003-02-14 2009-06-30 Tyco Healthcare Group Lp Safety device with trigger mechanism
US7615033B2 (en) 2004-08-16 2009-11-10 Becton, Dickinson And Company Flashback blood collection needle
US20100100046A1 (en) * 2008-10-20 2010-04-22 Berger J Lee Cannulated apertured grooved director
US20100100114A1 (en) * 2008-10-20 2010-04-22 Berger J Lee Inflatable tissue elevator and expander
US7854723B2 (en) 2001-05-22 2010-12-21 Becton, Dickinson And Company Needle shield assembly having hinged needle shield
US7988673B2 (en) 2005-07-14 2011-08-02 Venetec International, Inc. Protective dressing and methods of use thereof
US8038654B2 (en) 2007-02-26 2011-10-18 Becton, Dickinson And Company Syringe having a hinged needle shield
GB2484719A (en) * 2010-10-21 2012-04-25 Andrew Levy Tube anchor with channel
US8172809B2 (en) 1999-11-04 2012-05-08 Tyco Healthcare Group Lp Safety shield apparatus and mounting structure for use with medical needle devices
US8197447B2 (en) * 2005-04-19 2012-06-12 Venetec International, Inc. Flexible IV site protector
US8496627B2 (en) 2006-03-21 2013-07-30 Covidien Lp Passive latch ring safety shield for injection devices
US9592071B2 (en) 2014-10-27 2017-03-14 J. Lee Berger Grooved director with instrument guide

Cited By (67)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3901226A (en) * 1974-03-29 1975-08-26 Anthony Scardenzan Protective guard for a hypodermic needle
FR2439591A1 (en) * 1978-10-25 1980-05-23 Technological Supply DEVICE FOR INTRODUCING A CATHETER OR PROBE INTO A BLOOD VESSEL
EP0064212A2 (en) * 1981-05-06 1982-11-10 B. Braun-SSC AG Catheter set
EP0064212A3 (en) * 1981-05-06 1983-11-16 Intermedicat Gmbh Catheter set
US4643722A (en) * 1983-04-05 1987-02-17 Smith Jr William I Closure system for storage, transport and disposal of hypodermic needles
EP0247590A3 (en) * 1986-05-29 1988-11-30 Terumo Kabushiki Kaisha Catheter-securing member and catheter assembly mounted wcatheter-securing member and catheter assembly mounted with the same ith the same
US4906233A (en) * 1986-05-29 1990-03-06 Terumo Kabushiki Kaisha Method of securing a catheter body to a human skin surface
US5017189A (en) * 1989-02-03 1991-05-21 Michel Gordon Protective cap for a hypodermic syringe
EP0443735A1 (en) * 1990-02-17 1991-08-28 Smiths Industries Public Limited Company Needle guards and assemblies
US5037401A (en) * 1990-04-20 1991-08-06 Decamp Dennis M Hypodermic needle cannula guard
US5171303A (en) * 1990-04-20 1992-12-15 Decamp Dennis M Hypodermic needle cannula guard
US4982842A (en) * 1990-06-04 1991-01-08 Concord/Portex Safety needle container
US5154285A (en) * 1990-08-01 1992-10-13 Smiths Industries Medical Systems, Inc. Needle assembly holder with rotatable safety sheath member
US5232454A (en) * 1990-08-01 1993-08-03 Smiths Industries Medical Systems, Inc. Safety needle container
US5139489A (en) * 1991-01-07 1992-08-18 Smiths Industries Medical Systems, Inc. Needle protection device
US5232455A (en) * 1991-01-07 1993-08-03 Smiths Industries Medical Systems, Inc. Syringe with protective housing
US5179963A (en) * 1991-10-11 1993-01-19 Berger J Lee Percutaneous carpal tunnel plasty method
USRE35523E (en) * 1991-10-11 1997-06-03 Berger; J. Lee Percutaneous carpal tunnel plasty method
USRE37252E1 (en) 1992-05-18 2001-07-03 Sims Portex Inc. Safety needle cartridge system
US6328713B1 (en) 1993-04-16 2001-12-11 Sims Portex Inc. Needle sheath device
US5545136A (en) * 1993-09-14 1996-08-13 Berger; J. Lee Grooved catheter director apparatus
US5490841A (en) * 1994-07-29 1996-02-13 Landis; Robert M. Safety sheath device
US7223258B2 (en) 1998-08-28 2007-05-29 Becton Dickinson And Company Safety shield assembly
US6648855B2 (en) 1999-08-23 2003-11-18 Becton, Dickinson And Company Safety needle assembly
US6699217B2 (en) 1999-08-23 2004-03-02 Becton, Dickinson And Company Safety needle assembly
US6780169B2 (en) 1999-08-23 2004-08-24 Becton, Dickinson And Company Safety shield assembly
US7029461B2 (en) 1999-11-04 2006-04-18 Tyco Healthcare Group Lp Safety shield for medical needles
US6949086B2 (en) 1999-11-04 2005-09-27 Tyco Healthcare Group Lp Seldinger safety shield for medical needles
US8226617B2 (en) 1999-11-04 2012-07-24 Tyco Healthcare Group Lp Safety shield apparatus and mounting structure for use with medical needle devices
US8172809B2 (en) 1999-11-04 2012-05-08 Tyco Healthcare Group Lp Safety shield apparatus and mounting structure for use with medical needle devices
US6796968B2 (en) 1999-11-04 2004-09-28 Tyco Healthcare Group Lp Reaccessible medical needle safety devices and methods
US7862547B2 (en) 1999-11-04 2011-01-04 Tyco Healthcare Group Lp Safety shield for medical needles
US7198618B2 (en) 1999-11-04 2007-04-03 Tyco Healthcare Group Lp Safety shield for medical needles
US7320682B2 (en) 1999-11-18 2008-01-22 Tyco Healthcare Group Lp Safety device
US6592556B1 (en) 2000-07-19 2003-07-15 Tyco Healthcare Group Lp Medical needle safety apparatus and methods
US7438703B2 (en) 2000-12-08 2008-10-21 Tyco Healthcare Group Lp Safety shield for medical needles
US7361159B2 (en) 2001-03-02 2008-04-22 Covidien Ag Passive safety shield
US7144389B2 (en) 2001-03-14 2006-12-05 Tyco Healthcare Group, Lp Safety shield for medical needles
US7854723B2 (en) 2001-05-22 2010-12-21 Becton, Dickinson And Company Needle shield assembly having hinged needle shield
US7220249B2 (en) 2001-06-06 2007-05-22 Becton, Dickinson And Company Hinged needle shield assembly having needle cannula lock
US7537581B2 (en) 2001-07-09 2009-05-26 Becton, Dickinson And Company Needle shield assembly having hinged needle shield and flexible cannula lock
US7001363B2 (en) 2002-04-05 2006-02-21 F. Mark Ferguson Safety shield for medical needles
US20070167914A1 (en) * 2002-06-11 2007-07-19 Bd Medical Products, Pte. Ltd Flashback blood collection needle with needle shield
US8708964B2 (en) 2002-06-11 2014-04-29 Bd Medical Products, Pte. Ltd. Flashback blood collection needle with needle shield
US8287498B2 (en) 2002-06-11 2012-10-16 Bd Medical Products, Pte. Ltd. Flashback blood collection needle with needle shield
US20110125102A1 (en) * 2002-06-11 2011-05-26 Becton, Dickinson And Company Flashback Blood Collection Needle with Needle Shield
US7128726B2 (en) 2002-06-12 2006-10-31 Becton Dickinson And Company Safety needle assembly
US8277408B2 (en) 2002-06-14 2012-10-02 Becton, Dickinson And Company Safety needle assembly
US7163526B2 (en) 2002-11-06 2007-01-16 Becton, Dickinson And Company Flashback blood collection needle with needle shield
US7553296B2 (en) 2003-02-14 2009-06-30 Tyco Healthcare Group Lp Safety device with trigger mechanism
US7300423B2 (en) 2003-02-14 2007-11-27 Tyco Healthcare Group Lp Safety device with trigger mechanism
US20100145226A1 (en) * 2004-08-16 2010-06-10 Becton, Dickinson And Company Flashback Blood Collection Needle
US8162896B2 (en) 2004-08-16 2012-04-24 Becton, Dickinson And Company Flashback blood collection needle
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WO2012052717A1 (en) 2010-10-21 2012-04-26 Andrew Levy Tube anchor assembly
GB2484719A (en) * 2010-10-21 2012-04-25 Andrew Levy Tube anchor with channel
GB2484719B (en) * 2010-10-21 2013-02-27 Andrew Levy Tube anchor assembly
US9592071B2 (en) 2014-10-27 2017-03-14 J. Lee Berger Grooved director with instrument guide

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