WO1996035466A1

WO1996035466A1 - Device for fitting a needle on a syringe with means for locking and unlocking the needle and ejecting it after use

Info

Publication number: WO1996035466A1
Application number: PCT/FR1996/000720
Authority: WO
Inventors: Valérie ANTHOINE
Original assignee: Anthogyr
Priority date: 1995-05-12
Filing date: 1996-05-10
Publication date: 1996-11-14
Also published as: FR2733916A1; FR2733916B1

Abstract

A device for fitting a needle on a cartridge syringe (1) has a tubular body (20) engaged so as to slide axially on the proximal end of the body of the syringe (1), and locked into place by attachment teeth (22) co-operating with radial studs (11). By pivoting (56) a resilient lever (23), the tubular body (20) carrying the needle (6) is unlocked, the tubular body (20) and needle (6) assembly being thereafter ejected and introduced in a safety container (51).

Description

TECHNICAL FIELD OF THE INVENTION The present invention relates to syringes for injecting products into the human or animal body. , generally comprising a syringe body intended to contain the product to be injected, a needle attached to the end of the syringe body, and a piston for forcing the liquid through the needle for injection. The invention relates more particularly to syringes for dental or veterinary use, intended for injections into bone or hard tissue, requiring a high pressure of liquid for injection, and requiring a mechanically resistant attachment of the needle to the body. syringe, to avoid separation of the needle from the syringe during injection and during withdrawal of the assembly by the user at the end of the injection.

Such syringes for injection into hard tissues generally comprise, at the end of the syringe body, a b tubular tip with external thread suitable for receiving the standardized base of a needle, said base generally comprising a tapping for the screwing of the base on the end piece.

Generally, the needles used in dental and veterinary art comprise a base situated in an intermediate position between the two ends of the tubular needle proper in which the injected product circulates. The proximal portion of the needle, intended to enter the human or animal body, is usually protected by a protective cap before use. The distal part of the needle, or part opposite to the base, is intended to pass through an internal channel of the threaded end of the syringe body, in order to pierce a plug of the cartridge containing the product to be injected, in the case of a cartridge holder syringe.

Such syringes are generally sterilizable, while the needles are for single use. This results in the need to separate the needle from the body of the syringe after use. To separate the needle from the body of the syringe after use, a first solution consists in adapting the protective cap again on the proximal part of the needle after use, then unscrewing the needle to separate it from the syringe body. The risks of punctures and contamination are then significant, first of all when the protective cap is engaged on the needle, and also after engagement of the cap by risk of contact with the unprotected distal part of the needle.

Another known solution consists in using a forceps or a box of needles making it possible to unscrew the needle from the body of the syringe. Such a system is safer, but impractical, since it requires the use of both hands of the user. Document O-A-89 07 461 describes a system making it possible to separate a needle from the syringe body without having to approach the hand of the proximal part of the needle. According to one embodiment, this device comprises a tubular body that can be engaged in axial sliding around the proximal end of the syringe body, and adapted to axially push the base of the needle after injection. The user can thus disengage the needle from the syringe body by operating only the tubular body sliding axially on the syringe body. However, such a device requires that the base of the needle is only engaged in force in the end of the syringe body, so that its release can be effected by simple axial thrust of the base away from the body of syringe. However, such a device is not suitable for use with needles allowing injections into hard tissue, the force fitting of the base of the needle being insufficient to withstand the mechanical forces necessary avoiding untimely detachment of the needle relative to the syringe body.

This document describes another embodiment in which the base of the needle is screwed onto the threaded end of the syringe body. The needle is unscrewed by a wing nut screwed on the same thread of the tip of the syringe body, and engaged between the syringe body and the base of the needle. It is understood that such a unscrewing operation cannot be carried out with one hand, and such unscrewing is moreover improbable by the effect of lock nut inevitably occurring between the nut and the base which are two parts engaged by screwing on the same threaded end. As soon as the device requires the use of both hands, we understand that a risk exists so that the second hand comes to touch the needle, and this results in a significant risk of contamination.

WO-A-94 26 333 describes another syringe structure in which the needle base is also force-fitted onto an end fitting of the syringe body. An ejection rod is engaged in axial sliding along the syringe body, and comes to bear against the base of the needle base, allowing the ejection of the needle after use by simple movement of axial translation. Such a device is not suitable for use with needles allowing injections into hard tissue, the force fitting of the needle base being insufficient to withstand the necessary mechanical forces avoiding untimely detachment of the needle relative to the syringe body.

Document US-A-5 201 716 describes another syringe structure, in which the syringe body is provided with a locking lever and needle ejection system. The levers act on the base of the needle. Such a device has many drawbacks. First of all, the levers constitute bulky elements, hindering the introduction into the mouth. They also constitute elements which are very difficult to clean, and which are generally soiled because of their advanced position in the mouth. In addition, the lever systems do not allow to adapt with all forms of needle base, of which only the axial bore is standardized, since the levers adapt to the external part of the base. STATEMENT OF THE INVENTION

The problem proposed by the present invention is to design a new needle adaptation device on a syringe, ensuring effective attachment of the needle on the syringe to withstand the mechanical tensile stresses appearing when the syringe is used for injection into hard tissue, while allowing easy ejection of the needle after injection, by actuation of the single hand holding the syringe body, without any risk of contamination of the hand by the proximal part or by the distal part of the needle.

It is also sought, by the present invention, to ensure sufficient rotation resistance of the needle about its axis relative to the body of the syringe, during injection. The invention further aims to limit the space requirement in the mouth of the system, and to facilitate cleaning and decontamination of the syringe body.

Preferably, the maneuver of separation and ejection of the needle must be able to be carried out with a single finger, for example the thumb of the hand holding the syringe.

Alternatively, it may be possible to separate and eject the needle by simple engagement in the opening of a box or container for used needles. To achieve these and other objects, a device for adapting a needle on a cartridge syringe comprises a tubular body adapted to carry the needle and which can be engaged in axial sliding around the proximal end of the body. syringe; the tubular body comprises latching means for cooperating with corresponding latching parts of the external face of a syringe body to selectively provide axial locking and rotationally locking the tubular body on the syringe body; the tubular body further comprises unlocking means which can be actuated manually and which are suitable for releasing the hooking means away from the corresponding hooking parts of the external face of the syringe body and thus authorize the axial displacement of the tubular body at the away from the syringe body.

Preferably, the attachment means are adapted to engage by elastic deformation and snap-fastening with the corresponding parts of the outer face of the syringe body and ensure locking at the end of axial engagement of the tubular body on the syringe body. In this way, the effective attachment of the needle is done automatically by pushing the needle adapter device axially on the syringe body, in an easy natural gesture. According to an advantageous embodiment, the unlocking means comprise a lever the first end of which is articulated on the tubular body along a transverse axis, the hooking means being such that the unlocking is obtained by pivoting the lever in the direction of its approximation of the proximal end of the syringe. By this arrangement, the unlocking movement is obtained by an axial displacement of the thumb, pushing the lever towards the proximal end of the needle, a movement which simultaneously produces the pushing the entire needle adapter away from the syringe body for ejection of the needle.

Ejection can be facilitated by providing elastic return means to urge the lever towards its locking position. Thus, after unlocking, the elastic return means push the lever in the direction of the finger which operates it, causing by reaction the ejection of the needle away from the finger.

In a first embodiment, the needle is integral with the tubular body. According to another embodiment, the tubular body comprises a proximal tip with external thread suitable for receiving the base of an attached needle, and with an internal channel adapted to be traversed by the distal part of the needle.

According to another aspect of the invention, a cartridge-holding tube for a syringe is provided, comprising, on its external peripheral surface of the body, protruding or recessed parts for the engagement of means for attaching a tubular body. reported needle adaptation.

According to a preferred embodiment, the cartridge-carrying tube comprises an axial tubular end extension, with a smooth cylindrical external lateral surface and adapted to engage in a corresponding internal channel of the attached tubular body for needle adaptation, ensuring effective guidance of the added tubular body, for effective directional support of the needle. SUMMARY DESCRIPTION OF THE DRAWINGS

Other objects, characteristics and advantages of the present invention will emerge from the following description of particular embodiments, made in relation to the attached figures, among which: - Figure 1 is a side view illustrating a known body structure of syringe, for adaptation of a needle by screwing;

- Figure 2 is a side view of a needle for known syringe, intended to be adapted by screwing on the syringe body of Figure

1, or on a syringe body according to the invention; - Figure 3 is a side view of a syringe body according to an embodiment of the present invention; - Figure 4 is a side view illustrating an embodiment of hooking means for hooking a needle on a syringe body of Figure 3 according to the invention;

- Figure 5 is a front view of the adapter device of Figure 4;

- Figure 6 is an end view of an axial tubular end extension extending the syringe body according to Figure 3;

- Figure 7 is a partial side view of said axial tubular extension of the syringe body end; - Figure 8 is a side view of said axial end extension according to another embodiment of the invention;

- Figure 9 is a partial side view showing the end region of syringe body according to another embodiment of the invention, with a circular groove; - Figure 10 is a partial side view of the end region of the syringe body, with a rectangular hooking lumen;

- Figure 11 is a side view of the syringe body end region of Figure 10;

- Figure 12 is a cross section of the syringe body end region according to another embodiment of the invention, with radial holes;

- Figure 13 is an end view of the end region of the tubular body of Figures 4 and 5, with a self-tapping thread system;

- Figure 14 is a side view of the threading system of Figure 13;

- Figure 15 is a side view of a tubular body according to another embodiment; FIG. 16 is a partial longitudinal section illustrating the assembly of a needle adapter device on a syringe body according to the present invention;

- Figures 17, 18 and 19 illustrate the steps of ejecting a needle and its adaptation device relative to a syringe body according to the invention, with the cooperation of a box or a container of used needles; - Figures 20 and 21 illustrate the steps of assembling a needle adapter device on a syringe body according to the present invention; and - Figures 22, 23 and 24 illustrate the steps of ejecting a needle relative to a syringe body according to an embodiment of the invention, by manual ejection.

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 illustrates, in side view, an injection syringe as generally used for injection into hard tissue, in the dental or veterinary fields.

This syringe consists of a syringe body 1, generally composed of a grip part 101, integral with or connected to a cartridge-carrying tube 102, with a piston 3 sliding in the syringe body 1 to push the liquid to be injected . The end of the syringe body 1, or end of the cartridge-carrying tube 102, comprises an axial tubular extension of the end 103, of smaller diameter, and provided with an external thread 2 suitable for receiving the base of a needle. The corresponding needle 6, as illustrated in FIG. 2, comprises the needle proper 5, in the form of a small diameter metal tube with a longitudinal through bore, and an intermediate portion of which is surrounded by a base 4 coaxial having an axial hole, tapped or not, adapted to fit on the external thread 2 of the syringe body 1. The needle 5 thus comprises a proximal portion

105, intended to penetrate the human or animal body for injection, and a distal portion 106 suitable for passing through an axial internal channel of the axial end extension 103 of the syringe body 1 in order to pierce a plug of a cartridge engaged in the cartridge holder tube 102.

In this known syringe, the needle 6 is thus adapted by screwing onto the axial end extension 103 of the syringe body 1, and must then be separated from the syringe body 1 by unscrewing.

In the embodiment according to the invention illustrated in FIG. 3, a syringe body 1 also comprises, in known manner, a gripping part 101, a cartridge-carrying tube 102, a piston 3 for pushing the liquid to be injected.

According to a first possibility illustrated in FIG. 3, the syringe body 1 also comprises an axial end extension 103. However, the external lateral surface 10 of said axial end extension 103 is devoid of thread, and has a smooth surface . In this same embodiment, the syringe body 1 comprises, on its external surface in the proximal end zone, two lateral pins 11 projecting radially, for the attachment of a needle adapter device like this will be explained later.

The cartridge holder tube has two opposite lateral openings such as the lumen 104, elongated lengthwise of the syringe and allowing lateral insertion of a cartridge.

The axial end extension 103 has an internal channel intended to be traversed by the distal part 106 of a needle 6 as shown in FIG. 2.

Alternatively, the syringe body can be as illustrated in FIG. 3, but without an axial end extension 103.

In the embodiment illustrated in FIGS. 4 and 5, a needle adapter device on the syringe body of FIG. 3 comprises a tubular body 20, shaped to be engaged in axial sliding around the proximal end of the syringe body 1. This tubular body 20 is limited by a generally cylindrical peripheral wall 200 surrounding an axial housing 201 of transverse dimensions slightly greater than those of the syringe body 1 in its proximal portion, the housing 201 being closed at the proximal end by a bottom 202 pierced with a central hole 203, and being open at its distal end to allow the introduction of the syringe body l.

The tubular body 20 comprises a proximal endpiece 21, with an external thread 2 suitable for receiving the base 4 of a needle 6 according to FIG. 2. The proximal endpiece 21 comprises an internal channel 204 adapted to be traversed at least by the distal part 106 of needle 6.

For adaptation to a syringe body 1 according to the embodiment of FIG. 3, comprising an axial end extension 103, the internal channel 204 of the proximal end piece 21 has a diameter suitable for engagement with low clearance of said extension axial end

103 of syringe body 1.

The distal part of the tubular body 20 forms a lever 23 constituting a manually operable unlocking means and adapted to unlock and allow the separation of the tubular body 20 away from the syringe body 1. The lever 23 is generally formed of a semi-cylindrical portion of the side wall of the tubular body 20, delimited by two opposite longitudinal slots such as the slot 123 and by a transverse slot 24, with two reduced zones of material constituting zones of connection 124 between the ends of the slots 123 and 24, forming an articulation of the lever 23 along a transverse axis. The distal end of the lever 23 is formed by an oblique tongue 25, deviating from the longitudinal axis of the tubular body 20, and suitable for allowing the engagement of the end of a finger for the tilting of the lever 23 around of the transverse axis formed by the connection zones 124. Thus, the lever 23 comprises a first end articulated on the tubular body 20 along a transverse axis, and its second end formed by the oblique tongue 25 can be manipulated to pivot the lever in the direction of its approach to the proximal end of the syringe, as illustrated by arrow 125.

In this embodiment, the tubular body 20 is advantageously in one piece, for example in molded plastic, preferably in an elastically deformable material so that the connection zones 124 of the lever 23 constitute elastic return means bringing the lever 23 towards its locking position. We take advantage of the elasticity to thus constitute a means promoting the ejection of the tubular body 20 away from the syringe body 1 after release of the locking means, as will be explained later.

In the embodiment illustrated in FIG. 4, the lateral edges of the lever 23 have two teeth such as tooth 22, projecting into the corresponding slot 123, and suitable for constituting attachment means capable of cooperating with parts of corresponding hooking formed by the pins 11 of the syringe body 1 of Figure 3. Thus, the slots 123 are adapted to allow the passage of the pins there, the teeth 22 being adapted to engage by elastic deformation and snap behind the corresponding pins 11 protruding from the external face of the syringe body 1, and thus ensuring locking at the end of axial engagement of the tubular body 20 on the syringe body 1. Still in the embodiment of FIG. 4, the opening distal of the housing 201 is limited by an oblique wall edge, so that the portion of the tubular body 20 diametrically opposite the lever 23 is shorter, and constitutes a lateral clearance allowing lateral access to the cartridge holder 102 by the lateral lumen 104 of the syringe body 1, while remaining long enough to surround the distal part 106 of the needle 6. In the mode As shown in FIG. 3, the axial end extension 103 of the syringe body 1 has a cylindrical lateral surface of revolution and smooth.

Alternatively, according to the embodiment illustrated in FIGS. 6 and 7, the axial tubular extension of the end 103 of the syringe body may comprise an external lateral surface 10 having a flat 30, preventing the axial rotation of the tubular body 20 around the syringe body 1. In these two embodiments, the tubular body 20 can be engaged on the syringe body 1 by axial sliding, and its ejection is also done by axial sliding. In the embodiment illustrated in FIG. 8, the external lateral surface 10 of the axial end extension 103 may comprise a helical thread 31 with a large pitch, by which the tubular body 20 can be adapted on the syringe body 1 by a helical movement, and its ejection is also carried out by helical movement. In the embodiment illustrated in FIG. 3, the radial pins 11 constitute hooking parts on the external face of the syringe body 1, to selectively ensure axial locking and a rotation locking of the tubular body 20 on the body of the syringe. syringe 1. For this, the pins 11 engage in the slots 123 behind the notches 22.

Alternatively, as illustrated in FIG. 9, one can provide on the outer peripheral surface of the syringe body 1 or of the cartridge holder 102, an annular groove 32 in which a corresponding tooth can be engaged projecting from the inner face of lever 23, not shown in the figures. This embodiment allows the free rotation of the tubular body 20 around the syringe body 1.

In the embodiment of Figures 10 and 11, the outer peripheral surface of syringe body 1 or cartridge holder tube 102 has a hollow portion in the form of a rectangular lumen 33, in which can also engage a tooth corresponding protruding lever 23 in the interior housing 201 of the tubular body 20. This embodiment simultaneously secures the rotation of the tubular body 20 around the syringe body 1.

In the embodiment illustrated in FIG. 12, the outer peripheral surface of the syringe body 1 or of the cartridge-carrying tube 102 has radial holes such as the hole 34, regularly distributed around the periphery, allowing the engagement of at least a corresponding tooth projecting from the lever 23 in the housing 201 inside the tubular body 20. This embodiment allows the indexing of the tooth in one of the holes, to adjust the angular orientation of the needle bevel around the longitudinal axis of the syringe.

In the embodiment illustrated in FIGS. 4 and 5, the tubular body 20 is separated from the needle, and is shaped to receive a needle as illustrated in FIG. 2. For this, the external thread 2 of the proximal tip 21 makes it possible to receive the base 4 of the needle 6. In the case of a base 4 comprising a threaded bore, the thread of the external thread 2 can be continuous.

Alternatively, for the adaptation of a needle 6 whose base 4 of plastic material has a smooth bore, not tapped, it is advantageous to provide an external thread 2 as illustrated in FIGS. 13 and 14, with grooves longitudinal such as the groove

35 defining a self-tapping thread.

In the embodiment illustrated in Figures 4 and 5, the tubular body 20 is provided for the adaptation of a needle oriented along the longitudinal axis of the syringe.

Alternatively, as illustrated in FIG. 15, a tubular body 20 can be bent to orient the needle in a direction X 'angularly offset from the longitudinal direction X of the syringe.

In another embodiment of the invention, not illustrated in the figures, provision can be made for the tubular body 20 to be formed in one piece with the needle 6, constituting an assembly adaptable to the syringe body 1 and entirely disposable. In the embodiment illustrated in FIG. 16, we see the assembly constituted by the syringe body 1 on which the tubular body 20 is adapted. The syringe body 1 consists, in its proximal part, of a cartridge-carrying tube 102, adapted to receive a cartridge 42, and closed at its proximal end by a transverse wall 41 pierced with an axial channel extending in the axial end extension 103. The jack 3, pushed by the actuating rod 40, compresses the cartridge 42. During the adaptation of a needle on the external thread 2 of the proximal endpiece 21 of the tubular body 20, the distal part of the needle pierces a plug 43 of the cartridge 42 for the passage of the liquid contained in the cartridge 42. The operation of the device according to the invention is illustrated in FIGS. 17 to 24.

In FIGS. 17 to 19, the needle is ejected in cooperation with the wall of a box for receiving used needles. Initially, the assembly is assembled as illustrated in FIG. 17, with the needle 6 adapted on the tubular body 20 itself engaged on the proximal end of the syringe body 1, the pins 11 being engaged behind the teeth 22. The needle 6 and the tubular body 20 are thus locked in position on the syringe body 1. The lever 23 is returned to its locking position by the elastic return means constituted by the elastic zone 124 of connection with the rest of the body tubular 20.

In FIG. 18, the needle 6 and the tubular body 20 are introduced through an orifice 50 of a reception box 51 diagrammatically shown, then the distal end of the lever 23 is engaged against the inside face of the box wall 51. A pull is then exerted on the syringe body 1 as illustrated by arrow 52, causing the lever 23 to pivot away from its locking position and towards the proximal end of the needle 6. By this action, the lever 23 releases the tooth 22 away from the corresponding lug 11 of the external face of the syringe body 1, and thus authorizes the axial displacement of the tubular body 20 away from the body syringe 1. This movement is illustrated in FIG. 19, in which the syringe body 1 moves in the direction 52, while the assembly formed by the needle 6 and the tubular body 20 moves inward. box 51 as illustrated by arrow 53. FIGS. 20 and 21 illustrate the steps of assembling the tubular body 20 on the syringe body 1. This assembly is carried out by a simple axial translation movement illustrated by the arrow 54.

Figures 22 to 24 illustrate the ejection of a needle by manual action. In FIG. 22, the assembly formed by the tubular body 20, the needle 6 and the syringe body 1 is assembled as above. In FIG. 23, the assembly formed by the needle 6 and the tubular body 20 is engaged by the opening 50 of the box 51. The user then engages the end of his thumb 55 under the distal end of the lever 23, causing the lever 23 to tilt towards the proximal part of the needle as illustrated by the arrow 56. By this pivoting, the lever 23 moves the tooth 22 away from the lug 11, unlocking the tubular body 20 which can then slide axially along the syringe body 1. By the elastic return effect of the lever 23 towards its locking position, it is understood that the lever 23 tends to spread the tubular body 20 and the needle 6 of the thumb 55, causing the sudden ejection movement of the tubular body 20 and of the needle 6 as soon as it is unlocked. As illustrated in FIG. 24, the assembly formed by the tubular body 20 and the needle 6 then falls into the box 51, without the user risking any contact with the parts of this assembly.

It is thus possible to produce a particularly reliable and safe injection system, comprising a syringe 1 with a cartridge holder 102 as described above, and with a needle adapter device with tubular body 20 as described above.

The present invention is not limited to the embodiments which have been explicitly described, but it includes the various variants and generalizations thereof contained in the field of claims below.

Claims

1 - Device for adapting a needle (6) on a syringe

(I) cartridge (42), comprising a tubular body (20) adapted to carry the needle (6) and capable of being engaged in axial sliding around the proximal end of the syringe body (1), characterized in that the tubular body (20) comprises:

- attachment means (22) for cooperating with attachment parts

(II) corresponding to the external face of a syringe body (1) for selectively ensuring an axial locking and a rotational locking of the tubular body (20) on the syringe body (1),

- unlocking means (23) which can be actuated manually and which are suitable for releasing the hooking means (22) away from the corresponding hooking parts (11) from the external face of the syringe body

(1) and thus authorize the axial displacement of the tubular body (20) away from the syringe body (1).

2 - Device according to claim 1, characterized in that the attachment means (22) are adapted to engage by elastic deformation and snap-fastening with the corresponding parts (11) of the outer face of the syringe body (1) and ensure locking at the end of axial engagement of the tubular body (20) on the syringe body (1).

3 - Device according to one of claims 1 or 2, characterized in that the unlocking means comprise a lever (23) whose first end is articulated on the tubular body (20) along a transverse axis (124), the means hooking (22) being such that the unlocking is obtained by pivoting the lever (23) in the direction (125) of its approach to the proximal end (105) of the syringe.

4 - Device according to claim 3, characterized in that the tubular body (20) is in one piece, with a distal part comprising two longitudinal slots (123) and a transverse slot (24) delimiting the lever (23), the lever (23 ) comprising at least one tooth (22) forming attachment means.

5 - Device according to claim 4, characterized in that the tubular body (20) has a lateral clearance allowing lateral access to the cartridge holder (102, 104). 6 - Device according to any one of claims 1 to 5, characterized in that the needle (6) is integral with the tubular body

(20).

7 - Device according to any one of claims 1 to 5, characterized in that the tubular body (20) comprises a proximal tip

(21) with external thread (2) suitable for receiving the base (4) of a needle (6), and with an internal channel (204) adapted to be passed through there by the distal part (106) of the needle ( 6).

8 - Device according to claim 7, characterized in that the internal channel (204) of proximal tip (21) has a diameter suitable for engagement with low clearance of an axial end extension (103) of the body of syringe (1).

9 - Device according to any one of claims 3 to 5, characterized in that the lever (23) is biased by elastic return means (124) towards its locking position, so that it causes the ejection of the tubular body (20) after release of the locking means (22).

10 - Device according to any one of claims 1 to 9, characterized in that the tubular body (20) is made of molded plastic, with a tip (21) whose external thread (2) has grooves (35) defining a self-tapping thread to cooperate with needles (6) whose base (4) of plastic material has a non-tapped bore.

11 - Cartridge holder tube (102) for syringe, characterized in that it has, on its outer peripheral surface of the body, projecting (11) or hollow (32, 33) parts for the engagement of means d hooking (22) of a tubular body (20) fitted with needle adaptation (6).

12 - Cartridge tube (102) according to claim 11, characterized in that it comprises an axial tubular end extension (103), with a smooth cylindrical external lateral surface and adapted to engage in a corresponding internal channel ( 204) of the tubular body (20) attached needle adaptation.

13 - Injection system comprising a syringe (1) with a cartridge-carrying tube (102) according to one of claims 11 or 12, and with a needle adaptation device (20) according to any one of claims 1 to 10.