WO1998001178A1 - Device for placing a guide in a vein by means of a tapping needle - Google Patents

Device for placing a guide in a vein by means of a tapping needle Download PDF

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Publication number
WO1998001178A1
WO1998001178A1 PCT/FR1997/001180 FR9701180W WO9801178A1 WO 1998001178 A1 WO1998001178 A1 WO 1998001178A1 FR 9701180 W FR9701180 W FR 9701180W WO 9801178 A1 WO9801178 A1 WO 9801178A1
Authority
WO
Grant status
Application
Patent type
Prior art keywords
guide
dispenser
base
device according
outlet
Prior art date
Application number
PCT/FR1997/001180
Other languages
French (fr)
Inventor
Michel Baufume
Daniel Rossi
Original Assignee
Vygon
Priority date (The priority date 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 date listed.)
Filing date
Publication date

Links

Classifications

    • 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
    • A61M25/09Guide wires
    • A61M25/09041Mechanisms for insertion of guide wires
    • 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
    • A61M25/0105Steering means as part of the catheter or advancing means; Markers for positioning
    • A61M25/0111Aseptic insertion devices

Abstract

The invention concerns a device for placing a guide in a vein by means of a tapping needle. The device comprises a syringe (S), a needle (A) and a joining piece (E) with an outlet (4a) to carry the needle and two inlets communicating with this outlet via respective internal passages, one of these inlets (3a) being designed for mounting the joining piece on the nozzle (1a) of the syringe and the other for inserting the guide into the needle. A guide dispenser (7) is slidingly mounted on the syringe, for instance by means of a base (6) directly attached on the syringe, such that it is possible to move the dispenser towards the joining piece by hand. The dispenser enables the guide to be slid into the guide inlet of the joining piece right into the needle. The invention is useful for placing a guide in a vein, in particular for inserting a catheter by Seldinger's method.

Description

- a puncturing needle (A) (normally protected by a removable tubular cap which has not been shown) with its mounting fitting (R);

- a nozzle (E) consists of three parts, namely a rear connector (3), a front connector (4) and a seal (5);

- a base carrier distributor (6);

- a guide valve (7)

- a guide (not visible in this Figure) in its protective sheath (11).

- an optional component (V) for maintaining the dispenser in a retracted position on the base during storage and transport.

As seen in Figure 3A which shows the tip formed by the one-piece assembly of the parts (3), (4) and (5), the rear connector (3) of the tip has an inlet (3a) for the screwing of the cap on the nose (Ia) of the syringe and a parallel input (3b) for introducing the guide in the endpiece. The front connector (4) of the nozzle has an outlet (4a) for the mounting of a puncture needle (4) and the output of the guide. The front and rear connectors have internal passages (8, 9) communicating with the outlet (4a).

In some embodiments, the needle may be integral with the endpiece for example, if the tip or front connector of the connector is molded onto the needle.

The inlet (3b) is aligned with the outlet (4a) and the seal (5) is arranged in the passage (9) which connects this input and this output to close this passage. The base (6) has a lower portion (6a) shaped saddle adapted to be clipped onto the body of the syringe and has an upper part (6b) having a front bearing and a rear bearing aligned (6c, 6d ) in which is slidable guide distributor (7) with possibility of lateral tilting.

The base (6) is adapted to be moved by sliding against the tip. In the example shown, the base includes at its front end a cradle (6) adapted to abut against the rear connector (3) of the endpiece (2A, 2B, 3B) and aligning the tip and the base (and thus the distributor).

Guide the distributor (7) is an elongated piece, slip-in bearings (6c, 6d) of the base, which has at the front a rectilinear guide and tubular outlet (7a) and rear an input of rectilinear and tubular guide (7b) which in this example is parallel to but offset the output, and this distributor between this input and this output an uncovered portion (7c) against which the guide can be pressed when it is desired to slide the guide to the distributor in one direction or in opposite directions.

The dispenser (7) also has at the rear an extension (7d) which is received in the rear bearing (6d) of the base (6) and which can slide in said bearing.

This appendage has a prismatic outer section which corresponds to a prismatic internal shape of the rear bearing, the clearance between the two parts and the elasticity of plastic materials used for obtaining the latching of the dispenser in the bearing to different predetermined angular positions the dispenser, the passage from one position to the other being effected by manually forcing the distributor to rotate.

The dispenser has a lug (7e) which abuts against the rear bearing (6d) of the base to limit the drop of the dispenser before - the distributor comprises a rectilinear guide entrance of parallel but offset with respect to the guide outlet distributor.

- the distributor mounting means comprises a base which can be moved longitudinally on the syringe and which bears the distributor.

- the base is releasably attached to the syringe.

- the base has a front portion adapted to cooperate with the endpiece to determine an end position of longitudinal travel of the base to the tip, as well as to align the base and the tip.

- the dispenser is attached detachably on the base, allowing independent use of the dispenser.

- the dispenser is mounted on the base so as to be slidable on the base along a translation axis which is parallel to the axis of the syringe.

- the base comprises a cradle which overlaps the syringe and bearings in which the dispenser is held so as to be longitudinally slidable on the base.

- the dispenser is mounted on the base so as to be tilted laterally about the base without changing the alignment of the guide of the dispenser outlet and the nozzle guide entry.

- the dispenser is snapped into one of the bearings of the base so that it can be tilted in the bearing from one to another of several stable angular positions.

- stop means are provided to define the service position of the dispenser so that in this position, the dispenser guide output passes through a seal that prevents communication between the tip of guide inlet and the outlet holder needle tip.

- locking means are provided to prevent a decline of the dispenser on the base when the dispenser is at the end of travel position to the mouthpiece, so that a voluntary manual intervention is necessary to overcome the action of said means locking.

- the guide comprises a resilient end which is bent in J-shaped when free to the dispenser outlet and becomes straight when it is withdrawn and retracted into the tubular end of the dispenser, and the entry guide the end piece has a groove suitable for protecting the J-shape of the guide.

The following will describe an embodiment of a device according to the invention, with reference to the figures of the accompanying drawings in which:

- Figure 1 is an exploded view of the device;

- Figures 2A and 2B are diagrams of the device, apart from the needle guide and the distributor respectively in side view and in top view;

- Figures 3A-3D show the device in a side view during various phases of its use.

1 shows, seen from outside, the different pieces that make up this embodiment of the device of the invention:

The device comprises (Fig. 1):

- a syringe (S) of type "Luer lock" the body there is shown (1) and the piston (2). DEVICE FOR SETTING UP A GUIDE IN VEIN WITH A NEEDLE PUNCTURE

5

The invention relates to the establishment of a linear guide in a vein, in particular for the introduction of a catheter according to the Seldinger technique.

0 Seldinger technique consists in principle, after having punctured the vein through a needle mounted at the end of a syringe, inserting the needle into the vein a guide, usually consisting of adjacent metal coils flexible enough to follow a path having five bends, withdrawing the needle leaving the guide wire in place and to introduce the catheter into the vein by threading on the guide, and then removing said guide leaving the catheter in place.

Various devices have been proposed to allow the introduction of 0 in the needle guide without having to detach beforehand the needle of the syringe.

In one type of device, (e.g. that of US Patent 4,274,408), the syringe plunger has an axial passage 5 wherein the guide can be inserted, means being provided for sealing the passage at the desired times .

In another type of device, the syringe is equipped with a nozzle having an output on which is mounted the needle, and two 0 entries communicating with said outlet by internal passages, one of the inputs being adapted for mounting of the tip on the nose of the syringe and the other input being adapted to guide introduction into the needle. Such devices are described for example in publications US-5 147 314 and DE-41 36051. Regardless of the device used, the practitioner must hold the syringe and simultaneously push the guide to move it forward into the needle.

The present invention aims to facilitate this manipulation.

The invention thus relates to a device for the introduction of a guide into a vein through a puncture needle, in particular for the introduction of a catheter according to the Seldinger technique, the device comprising a syringe, a needle and a nozzle having an outlet to bring the needle and two inlets communicating with this output by respective internal passages, one of the inputs being adapted for mounting the cap on the syringe and other input being adapted to guide introduction into the needle, characterized in that the device comprises a guide having a guide distributor outlet, mounting means being provided for mounting the slide valve on the syringe so that the guide of the dispenser outlet is aligned with the tip of guide inlet and can be close to a position of service or be removed by the dispenser on the translation seri Ngue.

In particular embodiments, the device of the invention also has one or more of the following characteristics:

- the end piece comprises a seal that prevents communication between the tip of guide inlet and the outlet holder and the needle tip through which the outlet of the dispenser guide when the latter is in operating position so that the guide passes through the seal without rubbing against the gasket when it is spun in the nozzle.

- the dispenser comprises an output rectilinear tubular guide and preceded by an area where the guide is accessible and can be pushed manually to this output. commissioning.

The dispenser also has a pin (7f) which abuts against the rear bearing (6d) of the base to prevent an unintentional drop of the dispenser when the latter is in the operating position (Figs. 3C and 3D).

The guidewire (10) is normally contained in a sheath (1 1) whose front end (l ia) is wedged in the inlet (7b) of the dispenser (Fig. 3C). Des clip (12) hold the sheath wound on itself (Fig. 1).

In the embodiment shown, the rear connector of the present nozzle, upstream from the entrance guide (3b) two flanges (3c, 3c ') and a bottom (3d) which define between them a groove (3e) (Fig . 2B).

The cradle (6) of the base is capable of sliding on the external faces of the flanges (3c, 3c ') to abut against a surface (3f) of the connector (3) (Figures 2A and 2B), and tubular end (7a) of the dispenser is adapted to be received in the groove (3e) between the flanges (3c, 3c ') (figures 3). This groove is also useful to protect the front end of the guide when this end is J-shaped (Fig. 3A), usually selected configuration to not be traumatic.

The device is supplied with the base or not premounted on the syringe, with the premounted guide distributor or not on the base and the tip preassembled or not on the syringe, the needle preferably being supplied with the device and with its guide sheath preferably being supplied with the device and in place on the dispenser.

Figure 3A shows the device in the standby configuration, the base (6) abutting against the tip and the dispenser being in a position such that the J-tip guide (10) is in the groove ( 3e) above the input guide (3b) of the endpiece. The bolt (V) is inserted into the lateral opening at the rear of the dispenser. To use the device, the operator removes the lock, makes the return guide (10) in the tubular end (7a) of the dispenser (by pulling the guide in the direction of the arrow (13) in Figure 3B), then pushes forward the dispenser until the tubular end (7a) enters the inlet (3b) of the cap and passes through the seal (5) (Figure 3C).

By pushing the guide (10) (arrow 14 in Figure 3D) the operator then enter the guide into the needle.

It will be noted that the stop shoulder (7f) of the dispenser against the bearing (6d) of the base locks the dispenser in the operating position (Figures 3C and 3D) and that the guide (10) passes through the seal (5 ) without friction and without risk of damage as it is not in contact with the joint, very appreciable advantage over devices in which the guide is inserted directly through the seal.

Note also that the dispenser may be tilted about its axis of translation on the base, depending on whether the user prefers to have the right or the left side handle.

Also note that the valve can be dismounted from the base, the bearing (6c) consisting of an open ring in the upper part and allowing the release of the front of the dispenser when the latter is rotated to one side or the other. It is sufficient to back the base, to move the dispenser in order to release the end (7d) of the bearing (6d) of the base and then rotating the dispenser to release the bearing (6c). We can then use the dispenser with the guide and the protective sheath as a classic guide grows.

The embodiment which has been described does not limit the scope of the invention.

Claims

claims
ii Device for the implementation of a guide (10) into a vein through a puncture needle, in particular for the introduction of a catheter according to the Seldinger technique, the device comprising a syringe (1 ), a needle (a) and a mouthpiece (3, 4, 5) having an outlet (4a) for supporting the needle and two inputs (3a; 3b) communicating with said output by respective internal passages (8, 9 ), one (3a) of the inputs being adapted for mounting the cap on the syringe and the other input (3b) being adapted to guide introduction into the needle, characterized in that the device comprises a guide valve (7) having an outlet (7a) to guide mounting means (6) being provided for mounting this slide valve on the syringe so that the guide outlet (7a) of the dispenser is aligned with the guide inlet (3b) of the cap and can be close to a position of service or be éloign ed by translation of the distributor on the syringe.
2 ^ apparatus of claim 1, wherein the end piece comprises a seal (5) which prevents communication between the input guide (3b) of the tip and the needle holder outlet (4a) of tip and through which the guide outlet (7a) of the dispenser when the dispenser is in the operating position, so that the guide passes through the non-contact seal with the gasket when it is inserted into the mouthpiece.
Σ Device according to one of claims 1 and 2, wherein the dispenser (7) comprises a rectilinear guide and tubular outlet (7a) preceded by a discovery zone (7c) in which the guide is accessible and can be pushed manually towards this output.
4. Device according to claim 3, wherein the dispenser (7) comprises an input for rectilinear and tubular guide (7b) parallel but offset with respect to the guide outlet (7a). 5i Device according to one of claims 1 to 4, wherein the distributor means comprises a mounting base (6) which can be moved longitudinally on the body (1) of the syringe and which bears the distributor (7).
6. Device according to claim 5, wherein the base (6) is detachably attached to the body (1) of the syringe.
7. Device according to one of claims 5 and 6, wherein the base (6) has at the front part (6e) adapted to cooperate with the endpiece (3) for determining a longitudinal limit position of the base to the tip and an alignment of the base and of the end piece in the limit position.
8_ t Device according to one of claims 5 to 7, wherein the dispenser (7) is mounted on the base (6) detachably.
â- Device according to one of claims 5 to 8, wherein the dispenser (7) is mounted on the base (6) so as to be slidable on the base along the axis of the syringe.
10. Device according to claim 6, wherein the base comprises a front bearing (6c) and a rear bearing (6d) in which the dispenser is held so as to be longitudinally displaceable.
11. Device according to one of claims 5 to 10, wherein the dispenser (7) is mounted so as to be tilted laterally about the base (6) without changing the alignment of the guide outlet (7a) and guide inlet (3b) of the endpiece.
12. Device according to claims 10 to 1 1, wherein the valve is latched in one (6d) of the bearings so that it can be tilted in the bearing of one or the other of several stable angular positions .
13. Device according to one of claims 1 to 12, wherein stop means are provided for defining the distributor's service position so that in its operating position, the output (7a) of the distributor through a gasket sealing (5) which prevents communication between the input guide (3b) of the nozzle and the outlet (4a) of the nozzle when the dispenser is not in the service position.
14. Device according to claim 13, wherein said stop means limit in both directions the distributor traverse stroke.
15. Device according to claim 13 or 14 and one of claims 3 to 9, wherein the stop means comprises a pin (7f) on the dispenser and a bearing (6d) on the base.
16. Device according to one of claims 1 to 15, wherein the outlet end (7a) of the distributor is tubular and has the tip upstream of the inlet guide a groove (3e) adapted to receive slide this end such that said end (7a) is aligned with said input guide.
17. Device according to claim 16, wherein the guide (8) has a resilient end which is J-shaped when free to the output (7a) of the distributor and which, when contained in this output takes the shape resulting from the output, and said groove (3) is adapted to receive this end and to protect its configuration in J as the guide of the dispenser outlet is not introduced into the guide inlet (3b) of tip.
PCT/FR1997/001180 1996-07-04 1997-07-02 Device for placing a guide in a vein by means of a tapping needle WO1998001178A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR9608334A FR2750608B1 (en) 1996-07-04 1996-07-04 Device for the implementation of a guide into a vein through a puncture needle, in particular for the introduction of a catheter according to the Seldinger technique
FR96/08334 1996-07-04

Publications (1)

Publication Number Publication Date
WO1998001178A1 true true WO1998001178A1 (en) 1998-01-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR1997/001180 WO1998001178A1 (en) 1996-07-04 1997-07-02 Device for placing a guide in a vein by means of a tapping needle

Country Status (2)

Country Link
FR (1) FR2750608B1 (en)
WO (1) WO1998001178A1 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0056103A1 (en) * 1981-01-10 1982-07-21 Intermedicat Gmbh Catheter instrument
US5147314A (en) * 1991-11-18 1992-09-15 Vaillancourt Vincent L Apparatus for introducing at least one of a catheter and a guide wire into a body cavity

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0056103A1 (en) * 1981-01-10 1982-07-21 Intermedicat Gmbh Catheter instrument
US5147314A (en) * 1991-11-18 1992-09-15 Vaillancourt Vincent L Apparatus for introducing at least one of a catheter and a guide wire into a body cavity

Also Published As

Publication number Publication date Type
FR2750608B1 (en) 1998-11-06 grant
FR2750608A1 (en) 1998-01-09 application

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