FR3073732A1 - VASCULAR ADAPTER AND KIT OF VASCULAR ADAPTERS - Google Patents

Abstract

The invention relates to a vascular adapter (1) and a vascular adapter kit (20), a vascular adapter forming a conduit (2) around a channel (3), said adapter comprising a first end (4) adapted to be connected to a medical device and having an opening; a second end (6) arranged to be inserted into a blood or lymphatic vessel and having an end face (7) comprising an opening, said second opening (8), through which the channel opens out, and an outer peripheral surface (9); ) about a central axis (10) of a portion of the channel located at the second end, said channel axis; one or more grooves (11) extending peripherally along said outer peripheral surface of the second end; the adapter being characterized in that the second end comprises, on said end face, one or more trenches (12) extending from the second opening and away from said second opening.

Description

"Vascular adapter and vascular adapter kit"

Technical area

The present invention relates to the medical and paramedical field and in particular to the field of vascular and lymphatic approaches.

The present invention relates in particular to a vascular adapter for the first vascular implementation, as well as a kit of vascular adapters adapted to any type of vessel and of intervention.

State of the art

The longitudinal catheterization process is known in the prior art. In practice, this involves pricking a vessel lengthwise, the surrounding tissues providing a natural seal. The method of longitudinal catheterization is practiced, for example, within the framework of the installation of an infusion by a nurse, or even during the realization of a vascular approach by medical personnel, such as, among others, a radiologist or a cardiologist.

One of the limits of this technique lies in the fact that it is not suitable, among other things, for approaches to sectioned vessels and for the analysis of surgical excision pieces. It is also not suitable for dissection work on previously injected parts.

An object of the invention is in particular to allow tight adaptation at high pressure between a medical device and a sectioned vessel.

Another object is to propose an adapter making it possible to facilitate injection in any positional configuration.

Another object is to propose an adapter making it possible to prevent it from being blocked by compression of the wall of the vascular or lymphatic element against the adapter.

Statement of the invention

To this end, according to a first aspect of the invention, there is provided a vascular adapter forming a conduit around a channel, the adapter comprising:

- 2 - a first end capable of being connected to a medical device and comprising an opening, called the first opening, through which the channel opens;

a second end arranged to be inserted into a blood or lymphatic vessel and comprising:

• an end face comprising an opening, called the second opening, through which the channel opens, and • an external peripheral surface around a central axis of a part of the channel located at the second end, called the axis of the channel ;

one or more grooves extending peripherally along said outer peripheral surface of the second end.

The second end of the adapter comprises, on the end face, one or more trenches extending from the second opening and moving away from said second opening.

The end face extends from the second opening to the outer peripheral surface.

The second opening, through which the channel opens, can be included in the trench (s).

The second end can be inserted in whole or in part in the blood or lymphatic vessel.

The trench or trenches can constitute radial fluid flow paths in which a fluid, circulating in the channel of the adapter, can flow in whole or in part.

The trench or trenches can form decompression paths in that they allow a fluid flowing under pressure in the channel to be evacuated by the radial fluid flow paths when all or part of the second opening is closed.

The trench (s) may form a drainage network extending from the channel to the blood or lymphatic vessel.

The drainage network can:

-increase the volume of flow of a fluid from the channel to the blood or lymphatic vessel, and / or

-a volume of fluid collection from the blood or lymphatic vessel to the canal.

- 3 The adapter can be curved.

The channel can be curved.

The adapter can include one or more channels.

When the adapter comprises several channels, one or both ends of one channel of the adapter may be common to one or more other channels of the adapter.

When the adapter comprises several channels, the two ends of a channel of the adapter may not be common with any of the other channels of the adapter.

A trench can separate two adjacent protrusions extending from a plane, called the trench bottom plane, the protrusions being arranged so as to form a remote bearing surface for the walls of the blood or lymphatic vessel, that is to say say a surface being far from the trench bottom plane.

The protrusions can constitute anti-obturation elements, in that they prevent a wall of the blood or lymphatic vessel from being in contact with the bottom plane of the trench.

A trench can be defined as extending from the trench bottom plane and moving downstream of said trench bottom plane relative to the path of a fluid flowing in the channel from the first opening to the second opening .

The bearing surface can be flat.

A projection may include:

a curved central face forming part of the wall of the channel and extending from the trench bottom plane to the second opening,

-two mainly flat lateral faces, extending radially from the curved central face, in the direction of the outer peripheral surface of the second end and each forming a lateral wall of one of the two trenches adjacent to said projection,

a convex face, corresponding to a part of the offset bearing surface, connected to a part of the outer peripheral surface, and

- 4 forming a part of the end face of the second end, said convex surface connecting the two lateral faces to the curved central face.

The two side walls of a trench can be parallel in them.

A distance between the two side walls of a trench can vary depending on the direction in which the trench extends.

A distance between the two side walls of a trench can increase or decrease depending on the direction in which the trench extends.

The set of convex faces of the projections form the end face.

The trench or trenches can extend radially from the second opening.

The trench or trenches can extend in a curved manner from the second opening.

The trench or trenches may extend in a rectilinear manner from the second opening.

The trench or trenches can extend from the second opening to open out from the outer peripheral surface of the second end.

The second end may include several trenches.

The channel may have a section which varies along the direction connecting the first opening to the second opening.

The section of the channel can decrease according to the direction connecting the first to the second opening.

The section of the channel can be constant at the first and / or the second end, and vary in the part of the adapter connecting the first to the second end.

The groove (s) may be continuous around the outer peripheral surface of the second end, thus allowing parts of a wall of the blood or lymphatic vessel to be enclosed therein

- 5 by applying a continuous ligature to the outer periphery of the wall of said blood or lymphatic vessel.

A ligature wraps an annular portion of the wall of the blood or lymphatic vessel against the surface of a groove.

The second end may include several grooves forming a bead between two consecutive grooves, on all or part of the outer peripheral surface of the second end.

The second opening and the trench bottom plane can be mainly transverse to the direction along which the axis of the channel extends.

The first end may include a nozzle, for rapid attachment of a medical device and / or a medical device such as, among other things, a syringe, a tubing, a tap, a pump.

The adapter attachment end piece can be arranged to cooperate with an end piece of the medical device and / or device so as to connect the adapter channel with said medical device and / or device.

The adapter tip can be arranged to accommodate a female tip, for example of the screw type, or a male tip, for example of the compression-rotation type, of the medical device and / or the medical device .

When the adapter tip is arranged to accommodate a female tip, the first end may include fins arranged to cooperate with said female tip.

When the adapter end piece is arranged to receive a male end piece, the part of the channel located at the first end may be conical.

The second end may include:

-two grooves parallel to the trench bottom plane and parallel to each other, and

-four trenches having walls perpendicular to the trench bottom plane, two adjacent walls forming a trench and being parallel

- 6 between them and two trenches adjacent to a projection being perpendicular to each other.

According to a second aspect of the invention, an adapter kit is proposed comprising a set of several adapters which are different from each other, each of the adapters being defined according to the first aspect of the invention.

The second ends of the adapters can have different sizes for each adapter in the kit.

The first ends of the adapters can be identical for each adapter in the kit.

Description of the figures and embodiments

Other advantages and particularities of the invention will appear on reading the detailed description of implementations and embodiments in no way limiting, and the following appended drawings:

FIGURE 1 is a schematic representation in bias view of a vascular adapter according to the invention, FIGURE 2 is a schematic representation in sectional view of a vascular adapter according to the invention, FIGURE 3 is a schematic representation in top view, from the side of the second end, of a vascular adapter according to the invention, FIGURE 4 is a schematic representation in a bias view of a vascular adapter according to the invention, FIGURE 5 is a schematic representation for cutting a kit of vascular adapters.

The embodiments described below are in no way limiting, we can in particular consider variants of the invention comprising only a selection of described characteristics, isolated from the other described characteristics (even if this selection is isolated within a

- 7 sentence including these other characteristics), if this selection of characteristics is sufficient to confer a technical advantage or to differentiate the invention from the state of the prior art. This selection includes at least one characteristic, preferably functional, without structural details, or with only part of the structural details if this part only is sufficient to confer a technical advantage or to differentiate the invention from the state of the prior art. .

With reference to FIGURE 1, 2, 3 and 4 there is described, in a first embodiment, a vascular adapter 1 forming a conduit 2 around a channel 3. The adapter 1 comprises a first end 4 able to be connected to a medical device and comprising first opening 5, through which the channel 3 opens. The adapter 1 comprises a second end 6 arranged to be inserted into a blood or lymphatic vessel (not shown). The second end 6 has an end face 7 comprising a second opening 8, through which the channel 3 opens. The second end 6 has an outer peripheral surface 9 around a central axis 10 of the channel 3 located at the second end. 6. The end face 7 extends from the second opening 8 to the outer peripheral surface 9. The second end 6 has two grooves 11 extending peripherally along the outer peripheral surface 9 of the second end 6. The second end 6 of the adapter 1 comprises, on the end face 7, four trenches 12 extending from the second opening 8 and moving away from the second opening 8. The second end 6 is, from preferably inserted entirely into the blood or lymphatic vessel. The second end 6 comprises four trenches 12. A bead 18 is formed between two consecutive grooves 11 on the external peripheral surface 9 of the second end 6.

The second opening 8, through which the channel 3 opens, is included in the trenches 12. The intersection volume of the trenches 12 between them constitutes the second opening 8. The second opening 8 and the trench bottom plane 14 are mainly transverse to the direction along which the axis 10 of channel 3 extends.

- 8 A trench 12 separates two adjacent projections 13 extending from a trench bottom plane 14, the projections 13 being arranged so as to form a remote bearing surface 15 for the walls of the blood or lymphatic vessel, this is ie a surface being distant from the trench bottom plane 14. A trench 12 extends from the trench bottom plane 14 and moves downstream of said trench bottom plane 14 relative to the path of a fluid flowing in the channel 3 from the first opening 5 to the second opening 8. The trenches 12 constitute radial fluid flow paths in which a fluid, flowing in the channel 3 of the adapter 1, can flow in whole or in part. The trenches 12 form, in particular, decompression paths allowing a fluid flowing under pressure in the channel 3 to be evacuated by the radial fluid flow paths when all or part of the second opening 8 is closed. In other words, the trenches 12 form a drainage network extending from the channel 3 towards the blood or lymphatic vessel. The drainage network increases the flow volume of a fluid from channel 3 to the blood or lymphatic vessel. The trenches 12 extend radially from the second opening 8. The trenches 12 extend in a straight line from the second opening 8. The trenches 12 extend from the second opening 8 until they emerge from the surface outer peripheral 9 of the second end 6. The four trenches 12 have walls 17 perpendicular to the trench bottom plane 14. Two adjacent walls 17 form a trench 12 and are parallel to each other. Two trenches 12 adjacent to a projection 13 are perpendicular to each other.

A projection 13 comprises a curved central face 16 forming a part of the wall of the channel 3 and extends from the trench bottom plane 14 to the second opening 8. A projection 13 comprises two lateral faces 17 mainly plane s' extending radially from the curved central face 16, in the direction of the outer peripheral surface 9 of the second end 6. The two mainly flat side faces 17 each form a side wall 17 of one of the two trenches 12 adjacent to said projection 13. A projection 13 comprises a convex face 15, corresponding to a part of the offset bearing surface 15, connected to a part of the outer peripheral surface 9. A convex face 15 forms

- 9 a part of the end face 7 of the second end 6. The convex surface 15 connects the two lateral faces 17 to the curved central face 16. The projections 13 constitute anti-sealing elements, in that they prevent a wall of the blood or lymphatic vessel to be in contact with the trench bottom plane 14. The two side walls 17 of a trench 13 are parallel in them. The set of convex faces 15 of the projections 13 form the end face 7.

The channel 3 has a section which varies along the direction connecting the first opening 5 to the second opening 8. Preferably, the section of the channel 3 is constant at the first 5 and the second end 6, and varies in the part of the adapter 1 connecting the first 5 to the second end 6.

The grooves 11 are continuous around the outer peripheral surface 9 of the second end 6, thus allowing parts of a wall of the blood or lymphatic vessel to be clamped there by applying a ligature (not shown) continuously on the outer periphery of the wall of said blood or lymphatic vessel. A ligature encloses an annular portion of the wall of the blood or lymphatic vessel against the surface of a groove 11. The two grooves 11 are parallel to the plane of the trench bottom 14 and parallel to each other.

The first end 4 comprises a quick-fixing end piece 19 for a medical device and / or a medical device. By way of nonlimiting example, the quick fixing end piece 19 is arranged to cooperate with a syringe, a tubing, a tap, a pump. The quick-fixing endpiece 19 is arranged to cooperate with the medical device and / or the medical device, in particular with any type of interface of the medical device and / or the medical device. Preferably, the quick fixing end piece 19 is a standard end piece. The quick attachment end 19 of the adapter 1 is arranged to cooperate with an end piece of the medical device and / or of the medical device so as to be connected with said medical device and / or said medical device. The end piece 19 of the adapter 1 is arranged to receive a female end piece, for example of the screw type, or a male end piece, for example of the type to be inserted by compression-rotation, of the medical device and / or the appliance. medical.

- With reference to FIGURE 5, there is described, in a second embodiment of the invention, an adapter kit 20 comprising a set of several adapters 1 different from each other, each of the adapters 1 being defined according to the first embodiment of the invention. The second ends 6 of the adapters 1 have different sizes for each adapter 1 of the kit 20. In particular, the size of adapter 1 means the size of the surface of the end face 7 of an adapter 1 and / or the length of a trench 12 in the direction in which the trench 12 extends. The size of adapter 1 also means the diameter of the second end 6 of an adapter 1, that is to say the diameter of the channel 3 and / or of the duct 2 and / or of the grooves and of the bead or beads. The first ends 4 of the adapters 1 are identical for each adapter 1 of the kit 20.

Of course, the invention is not limited to the examples which have just been described and numerous modifications can be made to these examples without departing from the scope of the invention.

Thus, in variants which can be combined with one another of the embodiments described above:

-the adapter 1 is curved, and / or

-channel 3 is curved, and / or

the adapter 1 can comprise one or more channels 3, and / or

when the adapter 1 comprises several channels 3, one of the ends 4, 6, or the two ends 4, 6, of a channel 3 of the adapter 1 are common to one or more other channels 3 of the adapter 1 , and or

when the adapter 1 comprises several channels 3, the two ends 4, 6 of a channel 3 of the adapter 1 are not common with any of the other channels 3 of the adapter 1, and / or

the section of the channel 3 can decrease in the direction connecting the first 5 to the second opening 6, and / or

the second end 6 has a single groove 11, and / or

the second end 6 of the adapter 1 comprises, on the end face 7, a single trench 12, and / or

the second end 6 is partially inserted into the blood or lymphatic vessel, and / or

- 11 - the second opening 8, through which the channel 3 opens, is included in the single trench 12, and / or

when the end piece 19 of the adapter 1 is arranged to receive a female end piece, the first end 4 comprises fins arranged to cooperate with said female end piece, and / or

when the end piece 19 of the adapter 1 is arranged to receive a male end piece, the part of the channel 3 situated at the level of the first end 4 is conical, and / or

the drainage network makes it possible to increase a volume of sampling of a fluid from the blood or lymphatic vessel towards the channel 3, and / or

the bearing surface 15 is flat, and / or

one or more trenches 12 extend in a curved manner from the second opening 8, and / or

a distance between the two side walls 17 of a trench 13 varies according to the direction in which the trench 13 extends, and / or

a distance between the two side walls 17 of a trench 13 increases in the direction in which the trench 13 extends, and / or

a distance between the two side walls 17 of a trench 13 decreases according to the direction in which the trench 13 extends.

In addition, the different characteristics, forms, variants and embodiments of the invention can be associated with each other in various combinations as long as they are not incompatible or mutually exclusive of each other.

Claims (16)

1. Vascular adapter (1) forming a conduit (2) around a channel (3), said adapter comprising: a first end (4) capable of being connected to a medical device and comprising an opening, called the first opening (5), through which the channel opens; a second end (6) arranged to be inserted into a blood or lymphatic vessel and comprising: • an end face (7) comprising an opening, called the second opening (8), through which the channel opens, and • an external peripheral surface (9) around a central axis (10) of part of the channel located at the second end, said axis of the channel; one or more grooves (11) extending peripherally along said outer peripheral surface of the second end; the adapter being characterized in that the second end comprises, on said end face, one or more trenches (12) extending from the second opening and moving away from said second opening. 2. An adapter (1) according to claim 1, in which a trench (12) separates two adjacent protrusions (13) extending from a plane, called the trench bottom plane (14), the protrusions being arranged so as to form a remote bearing surface (15) for the walls of the blood or lymphatic vessel, that is to say a surface being distant from the trench bottom plane. 3. Adapter (1) according to claim 2, in which a projection (13) comprises: a curved central face (16) forming a part of the wall of the channel (3) and extending from the trench bottom plane (14) to the second opening (8), -two mainly flat lateral faces (17), extending radially from the curved central face, in the direction of the peripheral surface - 13 outside (9) of the second end (6) and each forming a side wall of one of the two trenches (12) adjacent to said projection, -a convex face (15), corresponding to a part of the surface d offset support, connected to a part of the outer peripheral surface and forming a part of the end face (7) of the second end, said convex surface connecting the two lateral faces to the curved central face. 4. Adapter (1) according to any one of the preceding claims, in which the trench or trenches (12) extend radially from the second opening (8). 5. Adapter (1) according to any one of the preceding claims, in which the trench or trenches (12) extend from the second opening (8) to open out from the outer peripheral surface (9) of the second end (6). 6. Adapter (1) according to any one of the preceding claims, in which the second end (6) comprises several trenches (12). 7. Adapter (1) according to any one of the preceding claims, in which the channel (3) has a section which varies along the direction connecting the first opening (5) to the second opening (8). 8. Adapter (1) according to any one of the preceding claims, in which the groove or grooves (11) are continuous around the outer peripheral surface (9) of the second end (6), thus allowing parts of a wall of the blood or lymphatic vessel are enclosed therein by application of a ligature continuously on the outer periphery of the wall of said blood or lymphatic vessel. 9. Adapter (1) according to any one of the preceding claims, in which the second end (6) comprises several grooves (11) forming a bead (18) between two consecutive grooves, on all or part of the outer peripheral surface ( 9) of the second end (6). 10. Adapter (1) according to any one of claims 2 to 9, in which the second opening (8) and the trench bottom plane (14) are mainly transverse to the direction in which the axis extends ( 10) of the channel (3). 11. Adapter (1) according to any one of the preceding claims, in which the first end (4) comprises a quick-attaching tip (19) of a medical device and / or a medical device such as, among others , syringe, tubing, valve, pump. 12. Adapter (1) according to any one of the preceding claims, in which the end piece (19) of the adapter is arranged to receive a female end piece, for example of the screw type, or a male end piece, for example of type to be inserted by compression-rotation of the medical device and / or the medical device. 13. Adapter (1) according to any one of claims 2 to 12, in which the second end (6) comprises: -two grooves (11) parallel to the plane of the trench bottom (14) and parallel to each other, and -four trenches (12) having walls perpendicular to the trench bottom plane, two adjacent walls forming a trench and being parallel to each other and two trenches adjacent to a projection (13) being perpendicular to each other. 14. Kit of adapters (20) comprising a set of several adapters (1) different from each other, each of the adapters being defined according to any one of claims 1 to 12. 15. Kit of adapters (20) according to claim 14, in which the second ends (6) of the adapters (1) have different sizes for each adapter of the kit. 16. Adapter kit (20) according to claim 14 or 15, wherein the first ends (4) of the adapters (1) are identical for each adapter in the kit. 1/3