US3568673A - Needle bevel guard for intravenous catheter - Google Patents
Needle bevel guard for intravenous catheter Download PDFInfo
- Publication number
- US3568673A US3568673A US772923A US3568673DA US3568673A US 3568673 A US3568673 A US 3568673A US 772923 A US772923 A US 772923A US 3568673D A US3568673D A US 3568673DA US 3568673 A US3568673 A US 3568673A
- Authority
- US
- United States
- Prior art keywords
- needle
- catheter
- portions
- hub
- accommodate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES 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
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/32—Needles; 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
- A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
- A61M5/321—Means for protection against accidental injuries by used needles
- A61M5/3216—Caps placed transversally onto the needle, e.g. pivotally attached to the needle base
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES 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
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/32—Needles; 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
- A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
- A61M5/321—Means for protection against accidental injuries by used needles
Definitions
- ABSTRACT A hinged and closeable guard for maintaining [51] Int. Cl A6lm 5/00 the sterility of an intravenous needle prior to use and for main- [50] Field of Search 214, taining the catheter in axial alignment with the needle during 214.4, 215, 221, (LC. Digest) use,
- This invention relates to a needle bevel guard for an intravenous catheter and in particular to means whereby the sterile discipline of the catheter and needle can be maintained prior to catheter use and means whereby the catheter and patient can be protected from injury during use.
- 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 is a perspective view of a known type of intravenous catheterization device
- P16. 2 is a side elevational view of the needle-hub-catheter portion of the assembly illustrated in FIG. 1;
- H6. 3 is a plan view of the preferred embodiment of the needle bevel guard with the two hinged portions lying in a single plane;
- FlG. i is an end view from the right of FIG. 3;
- FIG. 5 is a plan view of the catheter and needle assembly with the guard in closed position.
- a typical 3d of the intravenous administration device is of the type illustrated in U.S. Pat. No. 3,055,361.
- This device generally indicated at ll has a needle ll, the needle being rigid in form, having a bore l9 therethrough, terminating at one end in a beveled sharp and 12 and provided at its other end with a hub T3.
- the hub i3 is made up of two continuous cylindrical portions having different diameters; the smaller diametered cylinder 14 and the larger diametered cylinder 15.
- the hub 13 has a bore 20 therethrough which forms a passageway with the needle bore 19 through which the catheter l6 passes.
- the catheter l6, usually made of a flexible plastic terminates at one end in an adapter 18 for connection to a suitable fluid supply in a wellunderstood manner.
- the catheter-needle-hub unit 6b of the device 10 is shown in FIG. 2.
- This unit 60 is enclosed within a plastic guard 30, shown in FIGS. 3, 4 and 5.
- the remaining portions of the catheter assembly 10, whose sterile discipline must be maintained, are enclosed by a pliant plastic guard sleeve I7, as shown in FIG. 1.
- the needle guard 30 consists of two approximately rectangular portions 31, 32 having approximately the same shape. These two portions are hinged together at 33 along one long side of each and have purse snap" closure means 35 on their free sides whereby, when the two portions 31, 32 are rotated about the hinge 33 into facing contact with each other, they will be releaseably locked in closed position.
- Each guard portion 31, 32 has a groove 50 formed therein parallel to the hinge 33. Upon folding together of the two portions these grooves combine to form a passageway from end to end of the closed guard.
- Each groove has three discrete zones: 21 zone 41 having a diameter approximately the same as or slightly less'than that of the catheter 16, a zone 42 having a diameter slightly greater than the diameter of the needle 11, and a zone 43 having a diameter approximately equal to the diameter of the hub portion 14 and preferably flaring slightly to accommodate manufacturing variations in hub size.
- guard 30 and catheter assembly 10 The entire unit comprising guard 30 and catheter assembly 10 is shipped to the consumer enveloped in a sterile container.
- the guard 30 is in place about the assembly 60 whereby the assembly 60 may be placed on a contaminated field without sterility violation, since that portion of the assembly not enclosed by the guard 30 is enclosed by the protective sheath B7.
- the guard 30 is then removed from the assembly ill by separating the purse snaps 35 and rotating the guard portions 31, 32 about the hinge 33 into an open position permitting removal from the needle and hub.
- the needle 11 is then inserted into the vein, the catheter T6 is advanced into the vein to the desired extent, the needle ii is withdrawn in the usual manner and the guard 30 is repositioned about the catheter-needle-hub unit 60 by replacing the guard, rotating the guard portions 31, 32 into closed position with the purse snap" joinder means 35 locking the guard portions 31, 32 in contact, and the catheter-needle-hub unit 69 securely enclosed within the guard passageway.
- the catheter to is thereby maintained in axial alignment with the needle ll and the accidental cutting of the catheter by the sharp edges of the needle bevel l2 will be prevented.
- a needle bevel guard according to claim 1 in which the zone sized to accommodate the catheter includes at least a part engaging the catheter to prevent axial displacement thereof with respect to the needle.
- a needle bevel guard according to claim 1 in which the zone sized to accommodate the catheter includes at least a part engaging the catheter to prevent axial displacement thereof with respect to the needle, and the zone sized to accommodate the hub is of outwardly flaring cross section.
- a needle bevel guard according to claim 1 which includes complementary snap-acting releasable fastening devices projecting from the edges of said portions opposite the hinged edges and automatically engageable when said faces are moved toward contacting position for holding the portions in closed position.
- a needle bevel guard according claim 1 in which the portions are hinged together along substantially the entire length of one edge.
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Environmental & Geological Engineering (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
A hinged and closeable guard for maintaining the sterility of an intravenous needle prior to use and for maintaining the catheter in axial alignment with the needle during use.
Description
D United States Patent 1 1 3,568,673
[72] Inventor Calvin C. Cowley: 56 References Ci d 1 N :gggg UNITED STATES PATENTS [21] P 1,494,973 5/1924 Pittenger 128/221 [22] F1led Nov. 4, 1968 2,857,912 10/1958 Femstone et a] 128/215 [45] Patented Mar. 9, 1971 3,323,523 6/1967 Sc1slow1cz et al..... 128/214.4 [73] Ass1gnee C. R. Bard, Inc.
Murray Hill, NJ. 3,324,853 6/1967 Czorny et a1 128/214.4 3,406,687 10/1968 Moyer 128/221 Primary Examiner-Dalton L. Truluck [54] NEEDLE BEVEL GUARD FOR INTRAVENOUS w Saxton Seward CATHETER 6 Claims, 5 Drawing Figs. [52] US. Cl l28/2l4.4,
128/348 ABSTRACT: A hinged and closeable guard for maintaining [51] Int. Cl A6lm 5/00 the sterility of an intravenous needle prior to use and for main- [50] Field of Search 214, taining the catheter in axial alignment with the needle during 214.4, 215, 221, (LC. Digest) use,
NEEDLE WET/El, GUARD FGRTNTRAVENOUS QATHETER This invention relates to a needle bevel guard for an intravenous catheter and in particular to means whereby the sterile discipline of the catheter and needle can be maintained prior to catheter use and means whereby the catheter and patient can be protected from injury during use.
W hen it is necessary to administer parenteral liquids, such as 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 will not interfere with catheter insertion.
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.
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 manu factured 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.
Further objects and advantages of the invention will become apparent and the invention will be fully understood from the following description and drawings in which:
FIG. 1; is a perspective view of a known type of intravenous catheterization device;
P16. 2 is a side elevational view of the needle-hub-catheter portion of the assembly illustrated in FIG. 1;
H6. 3 is a plan view of the preferred embodiment of the needle bevel guard with the two hinged portions lying in a single plane;
FlG. i is an end view from the right of FIG. 3; and
FIG. 5 is a plan view of the catheter and needle assembly with the guard in closed position.
A typical 3d of the intravenous administration device, as shown in FlGS. l and 2, is of the type illustrated in U.S. Pat. No. 3,055,361. This device generally indicated at ll has a needle ll, the needle being rigid in form, having a bore l9 therethrough, terminating at one end in a beveled sharp and 12 and provided at its other end with a hub T3. The hub i3 is made up of two continuous cylindrical portions having different diameters; the smaller diametered cylinder 14 and the larger diametered cylinder 15. The hub 13 has a bore 20 therethrough which forms a passageway with the needle bore 19 through which the catheter l6 passes. The catheter l6, usually made of a flexible plastic, terminates at one end in an adapter 18 for connection to a suitable fluid supply in a wellunderstood manner.
The catheter-needle-hub unit 6b of the device 10 is shown in FIG. 2. This unit 60 is enclosed within a plastic guard 30, shown in FIGS. 3, 4 and 5. Before use, the remaining portions of the catheter assembly 10, whose sterile discipline must be maintained, are enclosed by a pliant plastic guard sleeve I7, as shown in FIG. 1.
The needle guard 30 consists of two approximately rectangular portions 31, 32 having approximately the same shape. These two portions are hinged together at 33 along one long side of each and have purse snap" closure means 35 on their free sides whereby, when the two portions 31, 32 are rotated about the hinge 33 into facing contact with each other, they will be releaseably locked in closed position.
Each guard portion 31, 32 has a groove 50 formed therein parallel to the hinge 33. Upon folding together of the two portions these grooves combine to form a passageway from end to end of the closed guard. Each groove has three discrete zones: 21 zone 41 having a diameter approximately the same as or slightly less'than that of the catheter 16, a zone 42 having a diameter slightly greater than the diameter of the needle 11, and a zone 43 having a diameter approximately equal to the diameter of the hub portion 14 and preferably flaring slightly to accommodate manufacturing variations in hub size. When the guard portions 31, 32 are folded together so that the catheter-needlehub unit 60 in enclosed firmly within the passageway 41-42-43, the catheter i6 is thereby maintained in axial alignment with the needle Ill and the accidental cutting of the catheter to is prevented. FIG. 5 illustrates the assembly till with the needle guard in place. The zone 41 should be small enough to prevent free movement of the catheter therethrough at all times, so that the end of the catheter cannot accidentally move to an exposed position during shipment.
The entire unit comprising guard 30 and catheter assembly 10 is shipped to the consumer enveloped in a sterile container. When the unit is removed from this envelope prior to use, the guard 30 is in place about the assembly 60 whereby the assembly 60 may be placed on a contaminated field without sterility violation, since that portion of the assembly not enclosed by the guard 30 is enclosed by the protective sheath B7. The guard 30 is then removed from the assembly ill by separating the purse snaps 35 and rotating the guard portions 31, 32 about the hinge 33 into an open position permitting removal from the needle and hub. The needle 11 is then inserted into the vein, the catheter T6 is advanced into the vein to the desired extent, the needle ii is withdrawn in the usual manner and the guard 30 is repositioned about the catheter-needle-hub unit 60 by replacing the guard, rotating the guard portions 31, 32 into closed position with the purse snap" joinder means 35 locking the guard portions 31, 32 in contact, and the catheter-needle-hub unit 69 securely enclosed within the guard passageway. The catheter to is thereby maintained in axial alignment with the needle ll and the accidental cutting of the catheter by the sharp edges of the needle bevel l2 will be prevented.
Iclaim:
1. A needle bevel guard for use with an intravenous catheterization assembly comprising a hollow needle having a beveled point and a hub and a plastic catheter movable through said needle to project beyond said point, constituted by two elongated portions hinged together along one edge to permit bringing faces of said portions substantially into contact flatwise, each of said faces being substantially flat and provided with a medial groove spaced from the hinged edges and said grooves being complementary to form, when the faces are substantially in contact, a passageway having zones sized to accommodate, respectively, the hub, the needle and the catheter, and to retain the needle and catheter in axial alignment when the catheter is moved to a projecting position, the thickness of the sections in a direction perpendicular to the plane of said faces being substantially less than the width of said sections in said plane.
2. A needle bevel guard according to claim 1, in which the zone sized to accommodate the catheter includes at least a part engaging the catheter to prevent axial displacement thereof with respect to the needle.
3. A needle bevel guard according to claim 1, in which the zone sized to accommodate the hub is of outwardly flaring cross section.
4. A needle bevel guard according to claim 1, in which the zone sized to accommodate the catheter includes at least a part engaging the catheter to prevent axial displacement thereof with respect to the needle, and the zone sized to accommodate the hub is of outwardly flaring cross section.
5. A needle bevel guard according to claim 1, which includes complementary snap-acting releasable fastening devices projecting from the edges of said portions opposite the hinged edges and automatically engageable when said faces are moved toward contacting position for holding the portions in closed position.
6. A needle bevel guard according claim 1 in which the portions are hinged together along substantially the entire length of one edge.
Claims (6)
1. A needle bevel guard for use with an intravenous catheterization assembly comprising a hollow needle having a beveled point and a hub and a plastic catheter movable through said needle to project beyond said point, constituted by two elongated portions hinged together along one edge to permit bringing faces of said portions substantially into contact flatwise, each of said faces being substantially flat and provided with a medial groove spaced from the hinged edges and said grooves being complementary to form, when the faces are substantially in contact, a passageway having zones sized to accommodate, respectively, the hub, the needle and the catheter, and to retain the needle and catheter in axial alignment when the catheter is moved to a projecting position, the thickness of the sections in a direction perpendicular to the plane of said faces being substantially less than the width of said sections in said plane.
2. A needle bevel guard according to claim 1, in which the zone sized to accommodate the catheter includes at least a part engaging the catheter to prevent axial displacement thereof with respect to the needle.
3. A needle bevel guard according to claim 1, in which the zone sized to accommodate the hub is of outwardly flaring cross section.
4. A needle bevel guard according to claim 1, in which the zone sized to accommodate the catheter includes at least a part engaging the catheter to prevent axial displacement thereof with respect to the needle, and the zone sized to accommodate the hub is of outwardly flaring cross section.
5. A needle bevel guard according to claim 1, which includes complementary snap-acting releasable fastening devices projecting from the edges of said portions opposite the hinged edges and automatically engageable when said faces are moved toward contacting position for holding the portions in closed position.
6. A needle bevel guard according claim 1 in which the portions are hinged together along substantially the entire length of one edge.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US77292368A | 1968-11-04 | 1968-11-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3568673A true US3568673A (en) | 1971-03-09 |
Family
ID=25096628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US772923A Expired - Lifetime US3568673A (en) | 1968-11-04 | 1968-11-04 | Needle bevel guard for intravenous catheter |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US3568673A (en) |
| CA (1) | CA926721A (en) |
| GB (1) | GB1264020A (en) |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3831625A (en) * | 1973-02-20 | 1974-08-27 | D Roediger | Intravenous safety device |
| US3904033A (en) * | 1974-11-08 | 1975-09-09 | Xomox Corp | Pick-guard |
| US3910272A (en) * | 1972-11-18 | 1975-10-07 | Transcodan | Cannula for introducing a flexible catheter |
| US4291694A (en) * | 1979-10-29 | 1981-09-29 | Chai S | Apparatus and method for performing a thoracic operation |
| FR2522504A1 (en) * | 1982-03-05 | 1983-09-09 | Durand Alain | CATHETERIZATION DEVICE, USEFUL FOR INFUSIONS IN THE MEDICAL AND VETERINARY FIELDS |
| US4413754A (en) * | 1981-03-13 | 1983-11-08 | Dr. Karl Thomae Gmbh | Dispenser of small quantities of liquids |
| US4790842A (en) * | 1986-09-15 | 1988-12-13 | Coburn Timothy J | Blood sample segment detaching and tearing device |
| WO1990003196A1 (en) * | 1988-09-30 | 1990-04-05 | Utterberg David S | Guarded winged needle assembly |
| WO1991008786A1 (en) * | 1989-12-18 | 1991-06-27 | Wayne Crawford | Hypodermic needle sheath |
| WO1992006724A1 (en) * | 1990-10-17 | 1992-04-30 | Wolfgang Hiller | Protective tube for a one-time cannula |
| US5266072A (en) * | 1988-09-30 | 1993-11-30 | Utterberg David S | Guarded winged needle assembly |
| US5290264A (en) * | 1991-09-03 | 1994-03-01 | Utterberg David S | Grippable guard for needle assembly |
| EP0623359A2 (en) * | 1993-05-06 | 1994-11-09 | Smiths Industries Medical Systems Inc. | Safety needle sheaths |
| US6632201B1 (en) | 1999-11-17 | 2003-10-14 | Baxter International Inc. | Locking needle protector |
| US20050049559A1 (en) * | 2002-08-09 | 2005-03-03 | Jean-Marie Mathias | Needle protector |
| US20060089599A1 (en) * | 2004-10-27 | 2006-04-27 | Daniel Lynn | Blood donor needle assembly and cover |
| US11083841B2 (en) | 2002-08-09 | 2021-08-10 | Fenwal, Inc. | Needle protector, needle assembly and fluid processing set including the same |
| US11471610B1 (en) | 2018-10-18 | 2022-10-18 | Robert Banik | Asymmetrical closure for a medical device |
| US12172803B1 (en) | 2021-10-04 | 2024-12-24 | Patrick Vitello | Tamper evident integrated closure |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2217991A (en) * | 1988-05-03 | 1989-11-08 | John Cole | Needle protection |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1494973A (en) * | 1922-09-29 | 1924-05-20 | H K Mulford Company | Medicinal package |
| US2857912A (en) * | 1955-10-27 | 1958-10-28 | Feinstone Theodore | Syringe needle protector |
| US3323523A (en) * | 1964-11-18 | 1967-06-06 | Abbott Lab | Intravenous catheter assembly with divisible needle sheath portions |
| US3324853A (en) * | 1964-03-02 | 1967-06-13 | Sorenson Res Corp | Intravenous catheter protector unit |
| US3406687A (en) * | 1966-06-23 | 1968-10-22 | Resiflex Lab | Guide and positioning means for a needle |
-
1968
- 1968-11-04 US US772923A patent/US3568673A/en not_active Expired - Lifetime
-
1969
- 1969-10-31 CA CA066353A patent/CA926721A/en not_active Expired
- 1969-11-03 GB GB53777/69A patent/GB1264020A/en not_active Expired
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1494973A (en) * | 1922-09-29 | 1924-05-20 | H K Mulford Company | Medicinal package |
| US2857912A (en) * | 1955-10-27 | 1958-10-28 | Feinstone Theodore | Syringe needle protector |
| US3324853A (en) * | 1964-03-02 | 1967-06-13 | Sorenson Res Corp | Intravenous catheter protector unit |
| US3323523A (en) * | 1964-11-18 | 1967-06-06 | Abbott Lab | Intravenous catheter assembly with divisible needle sheath portions |
| US3406687A (en) * | 1966-06-23 | 1968-10-22 | Resiflex Lab | Guide and positioning means for a needle |
Cited By (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3910272A (en) * | 1972-11-18 | 1975-10-07 | Transcodan | Cannula for introducing a flexible catheter |
| US3831625A (en) * | 1973-02-20 | 1974-08-27 | D Roediger | Intravenous safety device |
| US3904033A (en) * | 1974-11-08 | 1975-09-09 | Xomox Corp | Pick-guard |
| US4291694A (en) * | 1979-10-29 | 1981-09-29 | Chai S | Apparatus and method for performing a thoracic operation |
| US4413754A (en) * | 1981-03-13 | 1983-11-08 | Dr. Karl Thomae Gmbh | Dispenser of small quantities of liquids |
| FR2522504A1 (en) * | 1982-03-05 | 1983-09-09 | Durand Alain | CATHETERIZATION DEVICE, USEFUL FOR INFUSIONS IN THE MEDICAL AND VETERINARY FIELDS |
| EP0090687A1 (en) * | 1982-03-05 | 1983-10-05 | Alain Jean-Marie Durand | Catheterisation means suitable for perfusions in the fields of medicine and veterinary science |
| US4790842A (en) * | 1986-09-15 | 1988-12-13 | Coburn Timothy J | Blood sample segment detaching and tearing device |
| US5266072A (en) * | 1988-09-30 | 1993-11-30 | Utterberg David S | Guarded winged needle assembly |
| US5433703A (en) * | 1988-09-30 | 1995-07-18 | Utterberg; David S. | Guarded winged needle assembly |
| US5112311A (en) * | 1988-09-30 | 1992-05-12 | David S. Utterberg | Guarded winged needle assembly |
| WO1990003196A1 (en) * | 1988-09-30 | 1990-04-05 | Utterberg David S | Guarded winged needle assembly |
| WO1991008786A1 (en) * | 1989-12-18 | 1991-06-27 | Wayne Crawford | Hypodermic needle sheath |
| WO1992006724A1 (en) * | 1990-10-17 | 1992-04-30 | Wolfgang Hiller | Protective tube for a one-time cannula |
| US5290264A (en) * | 1991-09-03 | 1994-03-01 | Utterberg David S | Grippable guard for needle assembly |
| EP0623359A3 (en) * | 1993-05-06 | 1995-02-15 | Smiths Ind Med Syst Inc | Safety sleeve for needles. |
| US5423765A (en) * | 1993-05-06 | 1995-06-13 | Smiths Industries Medical Systems, Inc. | Removable safety needle sheath |
| EP0623359A2 (en) * | 1993-05-06 | 1994-11-09 | Smiths Industries Medical Systems Inc. | Safety needle sheaths |
| US6632201B1 (en) | 1999-11-17 | 2003-10-14 | Baxter International Inc. | Locking needle protector |
| US20050049559A1 (en) * | 2002-08-09 | 2005-03-03 | Jean-Marie Mathias | Needle protector |
| US7566327B2 (en) | 2002-08-09 | 2009-07-28 | Fenwal, Inc. | Needle protector |
| US11083841B2 (en) | 2002-08-09 | 2021-08-10 | Fenwal, Inc. | Needle protector, needle assembly and fluid processing set including the same |
| US20060089599A1 (en) * | 2004-10-27 | 2006-04-27 | Daniel Lynn | Blood donor needle assembly and cover |
| US11471610B1 (en) | 2018-10-18 | 2022-10-18 | Robert Banik | Asymmetrical closure for a medical device |
| US12172803B1 (en) | 2021-10-04 | 2024-12-24 | Patrick Vitello | Tamper evident integrated closure |
| US12195241B1 (en) | 2021-10-04 | 2025-01-14 | Patrick Vitello | Tamper evident integrated closure |
Also Published As
| Publication number | Publication date |
|---|---|
| CA926721A (en) | 1973-05-22 |
| GB1264020A (en) | 1972-02-16 |
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