WO2002068022A1 - Schutzvorrichtung für eine injektionsnadel - Google Patents
Schutzvorrichtung für eine injektionsnadel Download PDFInfo
- Publication number
- WO2002068022A1 WO2002068022A1 PCT/EP2002/002042 EP0202042W WO02068022A1 WO 2002068022 A1 WO2002068022 A1 WO 2002068022A1 EP 0202042 W EP0202042 W EP 0202042W WO 02068022 A1 WO02068022 A1 WO 02068022A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- needle
- protective element
- handle part
- section
- needle holder
- Prior art date
Links
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
- A61M5/3202—Devices for protection of the needle before use, e.g. caps
- A61M5/3204—Needle cap remover, i.e. devices to dislodge protection cover from needle or needle hub, e.g. deshielding devices
-
- 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
- A61M5/3243—Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel
- A61M5/3273—Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel freely sliding on needle shaft without connection to syringe or needle
-
- 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
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/06—Body-piercing guide needles or the like
- A61M25/0612—Devices for protecting the needle; Devices to help insertion of the needle, e.g. wings or holders
-
- 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
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/06—Body-piercing guide needles or the like
- A61M25/0612—Devices for protecting the needle; Devices to help insertion of the needle, e.g. wings or holders
- A61M25/0618—Devices for protecting the needle; Devices to help insertion of the needle, e.g. wings or holders having means for protecting only the distal tip of the needle, e.g. a needle guard
- A61M25/0625—Devices for protecting the needle; Devices to help insertion of the needle, e.g. wings or holders having means for protecting only the distal tip of the needle, e.g. a needle guard with a permanent connection to the needle hub, e.g. a guiding rail, a locking mechanism or a guard advancement mechanism
-
- 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
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/06—Body-piercing guide needles or the like
- A61M25/0612—Devices for protecting the needle; Devices to help insertion of the needle, e.g. wings or holders
- A61M25/0637—Butterfly or winged devices, e.g. for facilitating handling or for attachment to the skin
-
- 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
- A61M5/3243—Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel
- A61M5/3275—Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel being connected to the needle hub or syringe by radially deflectable members, e.g. longitudinal slats, cords or bands
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3401—Puncturing needles for the peridural or subarachnoid space or the plexus, e.g. for anaesthesia
-
- 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
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
- A61M2005/1581—Right-angle needle-type devices
-
- 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
- A61M5/3243—Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel
- A61M5/3245—Constructional features thereof, e.g. to improve manipulation or functioning
- A61M2005/3247—Means to impede repositioning of protection sleeve from needle covering to needle uncovering position
-
- 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
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/02—Holding devices, e.g. on the body
- A61M2025/0253—Holding devices, e.g. on the body where the catheter is attached by straps, bands or the like secured by adhesives
Definitions
- the invention relates to a protective device for an injection or infusion needle according to the preamble of claim 1.
- 'A safety device of this kind is known for example from US 4929241, wherein a relatively small protective element is disposed on the needle which can be moved at the needle tip by a spring from the retracted position to the protective position, said elastic arms of the protective element, the needle tip overlap while an engagement device on the protective element holds it on the needle shaft. Due to the small size of the protective element, it is difficult to move it by hand on the needle. In addition, the fastening spring can only be triggered when the needle tip is exposed, so that a risk of injury cannot be excluded.
- the invention has for its object to provide a protective device of the type specified in such a way that manual operation is facilitated and a risk of injury can be excluded.
- Show it 1 is a longitudinal section of a protective device
- FIG. 2 shows a side view of the embodiment according to FIG. 1
- FIGS. 1 and 2 shows a view of the device according to FIGS. 1 and 2 with the protective element shifted into the protective position
- FIGS. 1 and 2 shows a modified device according to FIGS. 1 and 2 with a needle cap
- FIG. 5 shows another embodiment of a grip part in connection with a syringe
- FIG. 6 shows a modified embodiment of the device according to FIG. 5
- FIG. 8 is a sectional view of the embodiment of FIG. 7,
- FIG. 10 is a plan view of an embodiment of FIG. 7 with Nade ⁇ kappe,
- FIG. 11 is a view of the needle cap of FIG. 10,
- FIG. 12 is a plan view of an embodiment according to FIG. 7 with a modified needle cap
- FIG. 13 is a side view of the needle cap of FIG. 12,
- 15 is a sectional view through another embodiment with a curved needle
- FIG. 16 shows another needle cap in the embodiment according to FIG. 15,
- Fig. 1 shows a needle holder 1, in which a needle 2 is attached.
- a protective element 3 in the form of a spring clip with crossing arms is arranged on the shaft of the needle 2.
- 4 with a sleeve is designated, which is displaceable with the protective element 3 along the needle shaft.
- the tip 5 of the needle is curved in accordance with an epidural needle or a Huber needle, so that the sleeve 4, which has a smaller diameter than the curvature at the tip of the needle, and with it the protective element 3 do not have the Needle tip can be moved out.
- a grip part 6 Arranged between the needle holder 1 and the protective element 3 is a grip part 6, which has a hollow cylindrical section 7 at the proximal end, on which a radially protruding shield 8 is formed. A cylindrical section 9 is formed on the front of the shield 8, the distal end of which is hollow.
- the protective element 3 is arranged in the cavity 10 in the provision according to FIG. Here, the angled ends of the crossing arms of the protective element 3 overlap the needle tip 5, so that injury to the operator by the needle tip is prevented.
- the needle holder 1 has radially projecting ribs 11, on which the hollow cylindrical section 7 of the handle part 6 is guided. Between the cylindrical section 9 with a smaller outside diameter and the hollow cylindrical section 7 with a larger outside diameter, slots 12 are formed in the grip part 6, through which the front ends of the ribs 11 of the needle holder 1 protrude radially, as shown in FIG. 2.
- the cylindrical section 9 of the handle part 6 provided with the cavity 10 has a fully cylindrical section 14 between the slots 12 and the cavity 10, in the central bore of which the needle 2 is guided. Between the slots 12 of the grip part 6, the cylindrical section 9 is integrally connected to the shield 8 or the hollow cylindrical section 7 via webs 15.
- These ribs 11 projecting over the outer circumference of the cylindrical section 9 of the grip part 6 serve to attach a needle cap 13, which is shown in FIG. 4.
- This needle cap 13 is used for the storage and handling of the device. It can be pulled off the needle holder 1 immediately before use of the injection needle in order to expose the needle without the handle part 6 and the protective element 3 being moved because the needle cap 13 is spaced radially from the section 9 of the handle part 6 by the ribs 11 is held.
- the needle cap 13 Due to the smaller diameter at section 14 compared to the larger diameter at the ribs 11, the needle cap 13, which consists of a piece of tubing with the same diameter throughout, cannot be incorrectly positioned on the section 14, but can only be pushed onto the ribs 11. This prevents the needle cap 13 is inadvertently made with a portion of the handle part 6.
- the needle cap 13 can be manufactured inexpensively by extruding a tube, a piece of such a tube forming the needle cap 13.
- FIGS. 1 and 2 After removing the needle cap 13, an injection can be carried out in the provision according to FIGS. 1 and 2, whereupon when the needle is withdrawn with one hand on the needle holder 1 with the other hand the grip part 6 is held on the section 7, so that the relative movement between the grip part 6 and the needle 2, the protective element 3 is moved into the protective position at the needle tip.
- This extended position of the handle part 6 is shown in Fig. 3.
- the protective element 3 is loosely arranged in the cavity 10 of the handle part 6, so that the handle part 6 can easily be withdrawn from the position in FIG. 3, while the protective element remains in the protective position at the needle tip.
- the cavity 10 in the cylindrical section 9 protects the protective element 3 after the needle cap 13 has been removed.
- FIG. 4 shows a preferred embodiment of the handle part 6, the hollow cylindrical section at the distal end of the handle part 6 being omitted, so that the front cylindrical section 14 forms the distal end of the handle part 6.
- the hollow cylindrical section 7 on the grip part 6 serves to protect the fingers of the hand holding the grip part from contact with the needle shaft when the needle is withdrawn.
- this hollow cylindrical section 7 can be made enlarged behind the shield 8.
- the handle part 6 is expediently made of plastic.
- FIG. 5 shows a modified embodiment of a grip part 6 in connection with a syringe 16, to which an injection needle 2 is fixedly attached via a needle holder 17, which is designed as a cannula attachment.
- a bead 18 is formed on the outer circumference of the needle in front of the needle tip, on which the rear wall of the shooter lementes 3 comes to rest in the protective position.
- diametrically opposite nub-like projections can also be formed by pinching.
- the grip part 6 has a cylindrical section 19 which is guided on the needle holder 17 in the starting position according to FIG. 5.
- two brackets 20 extend from this cylindrical section 19 at diametrically opposite locations at a distance from the syringe circumference in the proximal direction.
- the ends of these brackets 20 are formed on an annular body 21, from which elastic fingers 22 extend radially inwards. The free ends of these elastic fingers 22 rest on the outer circumference of the syringe 16.
- the grip part 6 can be used for differently sized syringe diameters, e.g. B. syringes with a volume of 1 ml to 10 ml can be used in the same handle part. This allows a wide range of syringes to be used with the same needle.
- radially projecting ribs 11 are formed at the front end of the needle holder designed as a needle hub, which serve as a seat for a needle cap. Due to the inner circumference of the cylindrical section 19, the protective element 3, the rear wall of which projects beyond the cross section of the ribs 11, is moved forward into the protective position.
- FIG. 6 shows an embodiment of the handle part 6, in which a further cylindrical section 9 is formed on the cylindrical section 19, in the cavity 10 of which the protective element 3 is received.
- slots extending in the axial direction are formed between cylindrical section 19 and section 9, through which the ribs 11 formed on the needle holder or needle hub 17 protrude for receiving the needle cap 13.
- FIG. 6a shows a perspective view of a needle cap 50 formed by injection molding, the distal end of which can be closed, while the proximal end has 11 grooves or grooves 51 on the inner circumference corresponding to the number of ribs which insert the needle cap onto the needle holder 17 with the ribs 11, so that the needle holder 17 can also be rotated by rotating the attached needle cap 50.
- a thread engagement is usually provided between the needle holder 17 and the syringe 16, so that the needle holder 17 can be screwed onto the syringe 16 by rotating the needle cap 50.
- the described configuration enables actuation with one hand when the syringe content is injected, the syringe 16 being held with two fingers and the needle being pulled out of the patient's skin, while at the same time a finger of the hand is on the ring body 21 located at the proximal end supported.
- FIG. 7 shows a plan view of a needle holder 1 provided with laterally projecting wings 23, to which a connecting hose 24 is connected.
- a handle part 6 with a hood-shaped section 26 is arranged, which because of the flat injection angle (FIG. 8) expediently has a surface piece 25 for resting on the patient's skin, which Support side can be provided, for example, with an adhesive layer for better holding on the skin.
- a foam material 25 ' is preferably provided on the support side.
- the hood section 26 of the handle part 6 protruding from the front end of the surface piece 25 at least partially covers the protective element 3.
- the surface piece 25 or the soft support part 25 ' also serves as a spacer for the protective element 3 from the patient's skin.
- the soft support part 25 ' extends over the surface piece 25 under the hood section 26, so that the protective element 3 does not rest on the patient's skin.
- the winged needle holder 1 is used for vein infusions, usually using a thin needle.
- the wings 23 are relatively large and flexible. They are compressed when the needle is inserted into the skin at a very shallow angle. A protective paper, not shown, applied to the contact surface on the adhesive layer should not be removed until the needle is inserted into the vein.
- the grip part 6 can also be fixed by means of an adhesive tape, the hood-shaped section 26 preventing contact between the protective element 3 and the adhesive tape.
- the grip part 6 with the protective element 3 initially remains in its position. After the retracted needle tip is securely covered by the protective element 3, the projections 18 on the needle fixing the protective element 3 to the needle tip, the grip part 6 can also be removed from the patient's skin.
- FIG. 9 shows a view of the handle part 6 from the right in FIG. 7.
- the wings 23 serve as a support surface for the needle holder 1 after the infusion needle has to remain in the inserted position for a certain time.
- FIGS. 7 to 9 show in a construction according to FIGS. 7 to 9 a needle cap 13 which is provided with two spaced retaining brackets 27 which are hung on the wings 23 via a bent free end 27 ', as shown in FIG. 10.
- the proximal end of the needle cap 13 expediently rests on the front end of the protective element 3, as shown in FIG. 10, so that the protective element 3 is kept in its ready position.
- a protective element in the form of a spring clip with crossing arms is shown.
- another embodiment of a protective element can also be used in connection with the grip part 6.
- Fig. 12 shows a further embodiment of the device according to FIGS. 7 to 9.
- the needle cap 13 is here instead of the suspension bracket 27 provided on both sides with an extension strut 36, which has a fork-shaped section 37 at the free end for insertion on the wings 23 of the needle holder (Fig. 13).
- These two spaced apart Struts 36 extend through correspondingly large openings 38 in the hood section 26 of the handle part 6, so that the fork-shaped plug-in sections 37 can be easily pulled off through these openings 38.
- the needle cap 13 is pulled off, the needle holder 1 is held, the handle part 6 not being moved.
- the needle cap 14 shows a longitudinal section through a needle cap 13, the proximal end of which rests on the protective element 3.
- the needle cap is tubular, the diameter enlargement 18 formed on the needle 2 by squeezing serving as a spacer for the needle cap 13.
- Such a needle cap can be manufactured by extrusion or injection molding. It is also possible to form a bulge or knobs on the inner circumference of the needle cap, which lie on the needle shaft and guide the needle essentially concentrically in the needle cap.
- the needle cap 13 is held by friction on the protrusions 18 on the needle 2.
- the needle cap can be fixed on the needle by heat and pressure or by shrinking on the needle.
- 15 shows an embodiment in connection with a Huber needle 2, which is held in a needle holder 1 'by means of a bent section and is provided for vertical insertion during an injection.
- 30 is a support part, preferably made of foam material, which is provided with an adhesive surface for better fixation on the patient's skin.
- Arranged between the support part 30 and the needle holder 1 ' is a shield-shaped handle part 6 which rests on the support part 30 over a flange-like region 31 and extends over a pot-shaped central section 32 into a corresponding recess in the needle holder 1'.
- the protective element 3 is arranged in this pot-shaped central part 32.
- the grip part 6 When the needle is pulled out, the grip part 6 is held on the support part 30 while the needle holder 1 'is pulled off.
- the protective element 3 is moved to the needle tip until it comes to rest on the needle crank 18, while at the same time the two crossing arms of the protective element 3 overlap and cover the needle tip.
- the grip part 6 can then be removed from the support part 30 or together with it.
- Handle part 6 and support part 30 can also be connected to one another via an adhesive layer.
- the side walls of the pot-shaped central part 32 are preferably inclined conically, so that the handle part 6 itself cannot be pulled off, but can only be pressed.
- a needle cap 13 ' with a tubular section, at the proximal end of which diametrically opposite wall sections 33 protrude, which are inserted via part-circular slots 34 in the flange 31 of the handle part 6 in correspondingly part-circular grooves 35 in the needle holder 1'.
- the curved wall sections 33 are loosely guided through the curved slots 34 in the flange 31 of the handle part 6 and are press-fitted into the grooves 35 of the needle holder 1 '.
- the needle cap 13 'in FIG. 15 can also be closed on the distal side.
- FIG. 16 shows an embodiment with a Huber needle 2 corresponding to FIG. 15, a needle cap 13 having a smaller inner diameter being pushed onto the needle 2.
- the needle cap essentially corresponds to that according to FIG. 14, the needle cap 13 being held on the needle by friction at the angled front end.
- This needle tip 13 in FIG. 16 can be provided with radially projecting and diametrically opposite surface sections 52, by means of which handling is improved and the tubular needle cap 13 is stiffened.
- 16a shows a perspective view of such a needle cap 13 with diametrically opposite surface sections 52.
- 17 and 18 show an embodiment in which the handle part 6 has a deformable section, by means of which the distal end of the handle part, on which the protective element 3 rests, can be displaced in the direction of the protective position at the needle tip by deforming the deformable section becomes.
- two pairs of formable brackets 40 and 40 'are formed on the handle part 6, which can be pressed together with the fingers, so that they move from the bent position in FIG. 17 into an extended position in FIG 18 are convicted.
- FIG. 19 and 20 show a further embodiment of a deformable handle part 6, wherein FIG. 19 shows the handle part in the provision in the folded state.
- the needle cap 13 is provided at the proximal end with a receiving section 42, which receives folded sections 45 of the handle part 6, which is arranged between the needle holder 1 and the protective element 3, not shown in FIG. 19, arranged in the receiving section 42.
- FIG. 20 shows a schematic illustration of the grip part 6 in a partially extended state after the needle cap 13 has been removed and an injection has been carried out.
- the stiff sections 45 of the grip part 6, which are connected to one another via hinge or hinge sections 44 and are partially guided on the needle 2 are displaced and aligned along the needle, the protective element 3 being displaced forward to the needle tip until it is in contact with the needle Needle crank 18 engages and covers the needle tip.
- FIGS. 1 to 16 have the advantage over the embodiments according to FIGS. 17 to 20 that a longer cannula length is available because the protective element 3 rests directly on the needle holder, while in the embodiments according to FIGS 17 to 20, a more complex structure of the grip part 6 is provided between the protective element 3 and the needle holder 1, as a result of which the cannula length available is restricted.
- the embodiment according to FIGS. 19 and 20 is also more advantageous with regard to the length of the cannula available than the embodiment according to FIGS. 17 and 18, because a more compact arrangement is possible due to the folding of the sections 45, as shown in FIG. 19 in FIG Relationship to Fig. 17 shows.
- a scissor mechanism can also be provided between the protective element and the needle holder in order to accommodate elements in a narrow space, by means of which the protective element can be extended widely.
- a metal needle clip is preferably used as the protective element 3, the crossing arms of which extend from opposite sides of a proximal wall section which has a hole for the passage of the needle, the hole diameter being smaller than the maximum transverse dimension of the needle at the pinch 18, so that the needle clip is held in the protective position at the needle tip by the section 18 which is enlarged in diameter.
- the crossed arms, the two on either side 14a, as shown in FIG. 14a, have at the distal end an end section widened approximately to the width of the rear wall, which rests on the outer circumference of the needle under elastic prestress in the starting position and moves into the protective position by spring action when the needle tip is reached in which the two widened end sections overlap the needle tip.
- the distal ends of the arms are slightly offset from one another in the longitudinal direction or the arms are of different lengths, so that it is ensured that the two angled end sections of the arms overlap the needle tip.
- the end section at the free edge is bent inwards in order to ensure that the needle tip is also covered when an attempt should be made to push the needle clip back out of the protective position on the needle, with the end section bent inwards at the needle tip hooked.
- the needle clip can be made very compact overall and only be about 7 mm long.
Abstract
Description
Claims
Priority Applications (16)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP06012884.0A EP1716882B2 (de) | 2001-02-26 | 2002-02-26 | Schutzvorrichtung für eine Injektionsnadel |
BRPI0216079A BR0216079B8 (pt) | 2001-02-26 | 2002-02-26 | conjunto de agulha hipodérmica. |
BR0207579-2A BR0207579A (pt) | 2001-02-26 | 2002-02-26 | Dispositivo protetor para uma agulha de injeção ou de infusão |
MXPA03007464A MXPA03007464A (es) | 2001-02-26 | 2002-02-26 | Dispositivo de proteccion para una aguja de inyeccion. |
EP02719930A EP1363690B9 (de) | 2001-02-26 | 2002-02-26 | Schutzvorrichtung für eine injektionsnadel |
DE50207377T DE50207377D1 (de) | 2001-02-26 | 2002-02-26 | Schutzvorrichtung für eine injektionsnadel |
US10/468,923 US7214211B2 (en) | 2001-02-26 | 2002-02-26 | Needle assembly with protective element |
JP2002567385A JP4606697B2 (ja) | 2001-02-26 | 2002-02-26 | 注射針のための保護装置 |
AU2002251021A AU2002251021B2 (en) | 2001-02-26 | 2002-02-26 | Protective device for a hypodermic needle |
US10/856,315 US7125397B2 (en) | 1997-08-20 | 2004-05-27 | Protective device for an injection needle |
US11/537,368 US7611487B2 (en) | 1997-08-20 | 2006-09-29 | Protective device for an injection needle |
US11/609,772 US7608057B2 (en) | 1997-08-20 | 2006-12-12 | Protective device for an injection needle |
AU2007216913A AU2007216913B2 (en) | 2001-02-26 | 2007-09-21 | Protective device for a hypodermic needle |
US12/574,963 US8100858B2 (en) | 1997-08-20 | 2009-10-07 | Protective device for an injection needle |
US13/099,945 US8376994B2 (en) | 2001-02-26 | 2011-05-03 | Protective device for an injection needle |
US13/770,888 US9022979B2 (en) | 2001-02-26 | 2013-02-19 | Protection device for an injection needle |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE20103363U DE20103363U1 (de) | 2001-02-26 | 2001-02-26 | Schutzvorrichtung für eine Injektionsnadel |
DE20103363 | 2001-02-26 |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10468923 A-371-Of-International | 2002-02-26 | ||
US10/856,315 Continuation-In-Part US7125397B2 (en) | 1997-08-20 | 2004-05-27 | Protective device for an injection needle |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002068022A1 true WO2002068022A1 (de) | 2002-09-06 |
Family
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PCT/EP2002/002042 WO2002068022A1 (de) | 1997-08-20 | 2002-02-26 | Schutzvorrichtung für eine injektionsnadel |
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US (3) | US7214211B2 (de) |
EP (5) | EP2394684B1 (de) |
JP (3) | JP4606697B2 (de) |
CN (2) | CN1287874C (de) |
AT (3) | ATE404238T1 (de) |
AU (1) | AU2002251021B2 (de) |
BR (2) | BR0207579A (de) |
DE (4) | DE20103363U1 (de) |
ES (5) | ES2331542T3 (de) |
HK (2) | HK1096879A1 (de) |
MX (1) | MXPA03007464A (de) |
PT (2) | PT1716882E (de) |
WO (1) | WO2002068022A1 (de) |
ZA (1) | ZA200306165B (de) |
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- 2002-02-26 ES ES07009418T patent/ES2331542T3/es not_active Expired - Lifetime
- 2002-02-26 DE DE50213841T patent/DE50213841D1/de not_active Expired - Lifetime
- 2002-02-26 PT PT06012884T patent/PT1716882E/pt unknown
- 2002-02-26 CN CNB028055632A patent/CN1287874C/zh not_active Ceased
- 2002-02-26 WO PCT/EP2002/002042 patent/WO2002068022A1/de active IP Right Grant
- 2002-02-26 MX MXPA03007464A patent/MXPA03007464A/es active IP Right Grant
- 2002-02-26 EP EP10012851.1A patent/EP2394684B1/de not_active Expired - Lifetime
- 2002-02-26 JP JP2002567385A patent/JP4606697B2/ja not_active Expired - Lifetime
- 2002-02-26 CN CN2006101321876A patent/CN1951513B/zh not_active Expired - Lifetime
- 2002-02-26 EP EP07009418A patent/EP1815880B1/de not_active Expired - Lifetime
- 2002-02-26 BR BR0207579-2A patent/BR0207579A/pt not_active Application Discontinuation
- 2002-02-26 BR BRPI0216079A patent/BR0216079B8/pt not_active IP Right Cessation
- 2002-02-26 ES ES06012884.0T patent/ES2274745T5/es not_active Expired - Lifetime
- 2002-02-26 AU AU2002251021A patent/AU2002251021B2/en not_active Expired
- 2002-02-26 AT AT06012884T patent/ATE404238T1/de not_active IP Right Cessation
- 2002-02-26 US US10/468,923 patent/US7214211B2/en not_active Expired - Lifetime
- 2002-02-26 AT AT07009418T patent/ATE442173T1/de not_active IP Right Cessation
- 2002-02-26 EP EP06012884.0A patent/EP1716882B2/de not_active Expired - Lifetime
- 2002-02-26 ES ES06013171.1T patent/ES2564499T3/es not_active Expired - Lifetime
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- 2002-02-26 EP EP02719930A patent/EP1363690B9/de not_active Revoked
- 2002-02-26 EP EP06013171.1A patent/EP1707230B1/de not_active Revoked
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2003
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2007
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2008
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2010
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2011
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Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
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EP2394684B1 (de) | 2001-02-26 | 2015-09-09 | B. Braun Melsungen AG | Injektionsnadel mit Schutzelement für die Nadelspitze |
DE20316804U1 (de) * | 2003-10-31 | 2005-03-10 | B. Braun Melsungen Ag | Kathetervorrichtung |
US9370641B2 (en) | 2006-11-03 | 2016-06-21 | B. Braun Melsungen Ag | Catheter assembly and components thereof |
US10682500B2 (en) | 2006-11-03 | 2020-06-16 | B. Braun Melsungen Ag | Catheter assembly and components thereof |
EP2575946B2 (de) † | 2010-06-02 | 2023-05-24 | Smiths Medical ASD, Inc. | Spitzenschutz für sicherheitskatheter |
AT515513A3 (de) * | 2014-02-25 | 2016-03-15 | Braun Melsungen Ag | Kathetervorrichtung und zugehörige verfahren |
AT15219U1 (de) * | 2014-02-25 | 2017-03-15 | Braun Melsungen Ag | Kathetervorrichtung |
USD821575S1 (en) | 2017-01-25 | 2018-06-26 | Becton, Dickinson And Company | Needle cover |
USD858755S1 (en) | 2017-01-25 | 2019-09-03 | Becton, Dickinson And Company | Catheter assembly and needle cover |
USD873998S1 (en) | 2017-01-25 | 2020-01-28 | Becton, Dickinson And Company | Catheter assembly and needle cover |
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