HK1195482B - Cassette for an intraocular lens and injector device for an intraocular lens - Google Patents

Description

Cartridge for an intraocular lens and injector device for an intraocular lens

Technical Field

The invention relates to a cartridge for an intraocular lens, which cartridge has a receiving container for an intraocular lens. The receiving container has a front face and a rear face as viewed in the axial direction. Furthermore, the invention relates to an injector device for an intraocular lens having such a cartridge.

Background

Cassettes for intraocular lenses are known as manifold configurations. Thus, for example, a cassette of this type is known from WO2010/031196a1, which has a cover part and a bottom part. An intraocular lens may be inserted into the cartridge. The box has a front opening and a rear opening, thereby forming a channel. The plunger can be introduced into the injector device through the posterior opening and then the plunger pushes the intraocular lens out of the cartridge through the anterior opening.

In known implementations of the cassettes, they are usually made of and provided, for example, plastic. Usually, the container is provided separately therefrom, in which the intraocular lens is arranged in a sterile manner. Only at the time of the surgical operation is the liquid-filled container with the intraocular lens opened, the intraocular lens being removed from the container and only then introduced into the cassette. The cartridge is then attached to the injector device and the plunger, which has been described above, pushes the lens out of the cartridge.

Thus, first, the lens is supplied and supplied in a separate transport container. The cassette is supplied separately therefrom. Therefore, first, it is necessary to perform a precise introduction process of the lens into the cartridge. In which damage to the lens may occur and optionally sterility will be affected.

Moreover, the user is also required to first go through a certain learning phase in order to be able to correctly introduce the lens into the cartridge on the one hand and to correctly mount the cartridge to the injector device on the other hand without error.

Disclosure of Invention

It is an object of the present invention to provide a cartridge for an intraocular lens and an injector device for an intraocular lens, with which manipulation of the intraocular lens can be achieved simply and with little effort.

This object is solved by a cartridge and a syringe device having the features of the independent claims.

The cartridge according to the invention is formed for receiving an intraocular lens. The cartridge includes a receptacle for an intraocular lens. The receiving container has a front face and a back face along an axial direction of the receiving container. The front side has an opening which is closed by a foil which is connected as a lid to the receiving container and/or the back side has an opening which is closed by a foil which is connected as a lid to the receiving container. The cartridge is thereby formed with its two openings, so that when arranged on the injector device, the plunger of the injector device can pass through the cartridge through one of the openings and push the intraocular lens now located therein out of the cartridge. Thus, the cartridge does not constitute a transport container for the intraocular lens, but a module that can be directly attached to the injector device or integrally formed in the injector device itself for further processing of the intraocular lens located therein.

Since at least one of the openings on the face of the receiving container is closed by a very thin foil, it is possible to allow the intraocular lens to have been inserted directly into the cartridge and the cartridge is thus formed to be multifunctional. Thus, it also has the overall function of a shipping container. The cartridge according to the invention is thus a component which on the one hand constitutes the transport container itself, but also on the other hand constitutes a component which is connected or can be connected to the injector device and which in the connected state of the injector device then allows the intraocular lens located in the injector device to be pushed out of the cartridge. By means of the foil, a mechanically stable closure is permitted on the one hand, which likewise permits sterile storage of the intraocular lens in the cartridge on the other hand.

Preferably, a balanced salt solution or pure water is arranged inside the receiving container. The intraocular lens located therein is thus stored aseptically.

By the foil being attached to at least one of the faces, the foil can also be handled simply and with low effort to thereby be able to subsequently draw the intraocular lens out of the receiving container. Thus, in particular when this is done, the intraocular lens is pushed out of the cartridge by the piston of the injector device.

The cassette according to the invention thus integrates multiple functions in a single component, which in conventional constructions requires multiple separate components and on the other hand requires additional handling efforts.

Thereby, in particular, after completion of the cassette, the intraocular lens is introduced into the receiving container and the balanced salt solution is introduced. Thereafter, at least one of the openings is closed with a foil. The thus provided cassette thus comprises an airtight receiving container in which the intraocular lens has been aseptically stored and integrated. The cassette thus formed can thus already be integrated in the injector device, so that the already finished injector device can be provided and thus subsequently delivered and optionally supplied to the surgeon. In such a configuration, the workload and in particular the installation effort is thereby minimized.

It is particularly advantageous if the foil is a co-extruded foil. For such a particular foil, it is particularly emphasized that, on the one hand, a hermetic sealing of the opening with the foil is ensured. On the other hand, it is thereby achieved that a particularly sterile barrier is further created by the foil, so that undesired contaminants cannot enter the interior of the receiving container. Moreover, the co-extruded foil further ensures the removal or piercing with respect to the subsequent when the intraocular lens is to be pushed out of the cartridge. Advantageously, the co-extruded foil has an aluminium layer. Here, aluminum is a material to be particularly emphasized, since the sterility barrier of the foil can be ensured.

Advantageously, the foil provided for co-extrusion has a propylene, in particular polypropylene, layer. In particular, the material part is suitable for hermetic sealing and attachment to a receiving container. In this case, the polypropylene material can be connected particularly sealingly to the material in the receiving container.

Preferably, the coextruded foil is formed so that it has a polypropylene layer on which the aluminium layer is formed. The aluminum layer is then preferably further covered with paint or other coating.

Preferably, the thickness of the foil is set between 0.30mm and 6mm, preferably between 0.3mm and 2mm, preferably between 0.3mm and 1mm, preferably between 0.45mm and 0.55mm, in particular 0.5 mm. Such foils are on the one hand highly flexible and can be easily and safely torn off with suitable handling tools without tearing them apart. Similarly, it can be particularly and ideally pierced with a suitable operating tool without having to be undesirably broken.

On the other hand, a sufficient thickness is ensured to prevent undesired piercing or detachment. In particular, a sufficient thickness is provided to be able to attach the foil to the receiving container in a mechanically safe and sealed manner and to be able to ensure sterility of the interior of the receiving container.

Preferably, the foil is connected to a tear-off element which is movable relative to the receiving container for tearing the foil from the receiving container. Thereby, a particularly simple handling device is ensured, whereby the handling device is likewise already integrally formed or present on the cassette. Thereby, also here the assembly effort is omitted. On the other hand, the tear-off element is arranged and connected to the foil so as to perform an intuitively correct sequence of movements and thereby automatically effect the detachment and tearing of the foil in a preferred direction. Thereby, the above-mentioned advantages are supported again.

Preferably, the tear-off element is designed as a plate-shaped holding part. Thereby, the user can safely grip and hold the tear-off element. Thereby, slipping-off is prevented.

Preferably, the foil is formed as a double layer over the opening. In particular, it is provided that the layer close to the receiving container is fixedly connected thereto, ensuring a seal and a sterile barrier. The second layer facing away from the receiving container is designed in particular such that it is not fixedly connected to the first layer, in particular in the region of the overlap with the first layer. Thereby, a certain relative mobility with respect to the first layer is ensured.

Preferably, the second layer is connected to the tear-off element. Thereby, particularly with regard to the attachment of the foil to the tear-off element and to the receiving container on the one hand, a safety-acting chain with regard to the removal of the foil from the receiving container can be ensured. This allows the tearing operation to be carried out in a particularly simple and targeted manner, so that it is ensured that the foil is torn off from the receiving container without tearing the foil.

It is particularly advantageous wherein the foil is provided as an integrally formed, in particular as a tape. In particular, a bend is formed at the end of the foil facing away from the tear-off element, while a second foil layer, which is located on the outside with respect to the opening of the receiving container, is connected to the tear-off element such that the free end faces away from the bend. The advantages mentioned above are achieved in a manner to be particularly emphasized. Since, if the tear-off element is pulled away from the box, whereby the position of the bend is actually pulled further and further, it can be ensured that a particularly suitable force is introduced into the first foil layer in respect of the detachment of the first foil layer from the receiving container. A particularly uniform and unidirectional detachment of the first foil layer from the two opposing attachment lines on the receiving container is thereby ensured.

Preferably, the foil is heat welded to the receiving container. In this way, a particularly simple and very tight connection can be provided. In particular, a particularly sealed connection between the plastic materials can be achieved if the receiving container is of a plastic material and the polypropylene material of the coextruded foil is heated.

Preferably, a displaceable elastic damping element (or soft cushion) is arranged on the opening of the receiving container constituting the input-side opening. The input-side opening forms the opening of the receiving container which faces the piston of the injector device when the cassette is arranged in the injector device in order to push the intraocular lens out. Preferably, the damping element is positioned directly on the inner side of the foil closing the inlet side opening. The damping element is thus arranged between the foil closing the opening of the input side and the intraocular lens located in the receiving container.

The damping element is preferably formed from an elastomer, in particular from silicone. With such an integrated damping element, particular advantages can be achieved in the specific construction of the cartridge and also of the syringe device, so that in particular a very hard and rigid piston can be used, with which the inlet-side opening of the cartridge can be pierced very clearly in an ideal manner. Since the damping element is further arranged at the rear, a soft part is thereby provided which in turn serves as a coupling body to contact the intraocular lens and push it out of the cartridge. Thereby, it can be avoided that the very hard and rigid piston directly contacts the intraocular lens and optionally can damage the intraocular lens.

As a result, with the damping element, on the one hand, a damping is actually formed for the piston which can strike the receiving container harder. On the other hand, the damping element ensures gentle contact with the intraocular lens during further pushing of the intraocular lens out of the cartridge. On the other hand, a particularly suitable push-out piston provided with a hard front end can be used, which in turn ensures the advantage of a safe and ideal piercing of the foil of the cartridge, as already mentioned.

However, it is noted that in any other implementation of the cassette, such a damping element can also be arranged in the receiving container. Thereby, such a damping element can also be arranged in a box in which one or both foils closing the opening on the face are removed with a tear-off element.

In the construction of the cassette, different implementations can be provided. In this context, it can be provided, for example, that two openings are closed with one foil each. In this configuration, it can thus be provided that two foils are connected to a single tear-off element and that the two foils are simultaneously torn off from the receiving container by means of the movement of the tear-off element.

In another implementation it can also be provided that each foil is connected to a dedicated separate tear-off element.

Similarly, it can be provided that only one of the two foils is connected to the tear-off element, and that the connected foil is then removed from the receiving container by actuating the tear-off element. The second foil is formed without such a tear-off element. Thereby, it can be designed such that it can be pierced by the piston of the injector device. In particular, it can have a perforation structure for this purpose, so that the piercing of the foil is effected in a very specific manner and at very specific locations.

In particular, it is thereby provided that the input-side opening is formed without such a tear-off element. The output side opening is formed with the tearing-off element.

In another embodiment, it can be provided that the outlet-side opening of the cartridge is formed without such a tear-off element. In particular, the foil has a characteristic perforation structure. In this configuration, it can thus be provided that the syringe tip of the syringe device formed as a separate component has a perforating element. Then, when the syringe tip is attached to the syringe barrel, the foil attached to the output side is automatically pierced by the perforating element at a predetermined position and in a desired manner. In this configuration it can be provided that the foil formed on the input-side opening is connected to the tear-off element. Preferably, however, it can be provided here that the foil attached to the input-side opening is likewise formed without such a tear-off element and, in addition, has in particular a particular perforation structure. It can then be pierced by the piston of the syringe device in question.

Preferably, the cartridge comprises a container with viscoelastic material, which is subsequently arranged on a receiving container, in particular the container is closed axially on both sides in a covering manner by a foil, in particular a coextruded foil.

Preferably, it is provided that the receiving container has a first chamber formed for receiving an intraocular lens. Wherein it can be provided that the two openings on the face are closed with one foil each. The receiving container can have a second chamber separate from the first chamber and containing a viscoelastic material. Wherein the second chamber can also be closed with a respective foil over the opening of the face. Viscoelastic materials are particularly advantageous for application to the eye if surgical procedures are performed. In particular, such viscoelastic materials are often applied if the incision to the eye has already been shaped. Since the chamber or container with such a viscoelastic material has been arranged integrally in the box, the viscoelastic material is introduced automatically. Thus, it is no longer necessary to provide and apply in a separate step by the surgeon or other personnel. By this integration of the chamber or container in the cassette, other functionalities are integrated in one component.

It can also be provided that the two chambers abut closely against one another and are separated by a partition, in particular a foil, wherein the foil then serves for covering and closing the two chambers. The two chambers can be arranged one behind the other as seen in the axial direction or else next to one another.

Preferably, at least one foil has the defined perforation structure already mentioned above. The perforation structure can in particular be a cross line, in particular two cross lines, in particular cross lines perpendicular to each other.

In particular, such a crossing structure is then also formed centrally on the foil, ensuring a particularly safe and centered puncture of the foil, thereby also providing a maximum tear-off geometry to enable a lens to be output simply and via a perforation opening as large as possible.

In particular, the cassette is a receiving container for storing the hydrophilic lens in an aqueous medium (pure water or saline water).

Furthermore, the invention relates to an injector device for an intraocular lens with a cartridge according to the invention or an advantageous configuration thereof. In particular, the injector device comprises a syringe barrel arranged with said cassette.

In a particularly advantageous manner, provision is made for the syringe device to already have the cassette in an integrated manner. In this way, a maximum degree of integration of the components is achieved in practice, which on the one hand ensures the delivery of the intraocular lens to the surgeon and on the other hand ensures the operation performed by the surgeon. Thereby, the work of assembling the cartridge to the injector device, in particular to the medical staff, on the one hand, and the work of introducing the intraocular lens from the separate transport container into the cartridge, in particular by the medical staff, is no longer required.

Preferably, the syringe device has a syringe tip formed with a perforated edge or perforated element. With this perforation edge, the foil of the cartridge facing the syringe tip is automatically cut open when the syringe tip is arranged on the syringe barrel of the syringe device. The advantages already mentioned above apply here as well.

Preferably, the injector device has a piston for pushing the intraocular lens out of the cartridge, which also has a perforation device or a perforation element by means of which the foil can be cut open automatically when the piston hits the foil of the cartridge facing the piston. Here, the advantages already mentioned above apply analogously.

Preferably, provision is made for the cassette to be steam sterilized and the syringe tip and syringe barrel to be sterilized with ethylene oxide.

Preferably, provision is made for the syringe device to be provided and deliverable in a closed transport container in a manner with which the cassette is integrated. This is particularly advantageous, as already mentioned above. The reason is that the medical staff thereby only needs to open the transport container and thereby be able to remove the entire injector device and start further handling of the injector device, without additional assembly processes or processes of removing the intraocular lens from the separate transport container or processes of introducing the intraocular lens into the cartridge.

Other features of the invention will be apparent from the claims, the drawings and the description of the drawings. The features and feature combinations described above in the description and shown in the description with reference to the figures and/or the features and feature combinations shown only in the figures can be used not only in the respectively specified combination but also in other combinations or alone without departing from the scope of the invention.

Drawings

Embodiments of the present invention will be described in more detail below by way of schematic drawings. In the figure:

FIG. 1 is a perspective view of an embodiment of a cassette according to the present invention;

FIG. 2 is a perspective view of an embodiment of an injector device according to the present invention;

fig. 3 is a perspective view, partly in section, of the injector device according to fig. 1 in a first operating state;

fig. 4 is a perspective view, partly in section, of the injector device according to fig. 2 in a second operating condition;

fig. 5 is a cross-sectional perspective view of a partial section of the injector device according to fig. 2 in a third operating state;

figure 6 is a perspective view, partly in cross-section, of the injector device according to figure 3 in a fourth operating condition;

FIG. 7 is a perspective view of a portion of the components of an injector device according to another embodiment;

FIG. 8 is a cross-sectional perspective view of the implementation according to FIG. 7;

FIG. 9 is a cross-sectional perspective view of another embodiment of an injector device according to the present invention;

FIG. 10 is a perspective view of the implementation in FIG. 9;

FIG. 11 is a partial perspective view of another embodiment of an injector device according to the present invention;

FIG. 12 is a partial perspective view of another embodiment of a syringe device according to the present invention with an implementation of a cassette according to the present invention; and

fig. 13 is a cross-sectional perspective view of the implementation in fig. 12.

Detailed Description

In the described embodiments, similar or functionally equivalent elements are provided with the same reference signs. In fig. 1, a first embodiment of a cassette 1 is shown in a perspective view. The cartridge 1 comprises a receiving container 2, the receiving container 2 being rectangular in this embodiment, and an intraocular lens 3 arranged in the receiving container 2. Furthermore, the receiving container 2 comprises an inner space 4, which inner space 4 is filled with a balanced saline solution 5 or an aqueous medium.

The receiving container 2 comprises a front face 6 and a rear face 7, viewed in the direction of its longitudinal axis a. An opening 8 is formed in the front face 6. Similarly, an opening 9 is formed in the back surface 7. The openings 8 and 9 are dimensioned such that the intraocular lens 3 can be input and output accordingly.

Thus, the cartridge 1 is formed for receiving an intraocular lens 3. Moreover, it is also provided for direct attachment to an injector for introducing the intraocular lens 3 into the eye.

Preferably, provision is made for the cartridge 1 to be arranged integrally on the syringe. Wherein the axially arranged openings 8 and 9 are designed such that the piston of the injector device can be pushed in via the opening 8 and thereby the intraocular lens 3 can be pushed out of the receiving container 2 via the opening 8.

Furthermore, the cartridge 1 comprises a first co-extruded foil 10. The coextruded foil 10 comprises polypropylene as a first layer and an aluminium layer attached thereto. It is then in turn covered by a layer of paint (vanish) or the like. The coextruded foil 10 extends over the entire width (y-direction) of the receiving container 2 in a first layer 11. With regard to its height (z direction), the foil 10 is formed approximately corresponding to the height of the receiving container 2. This first layer 11 of foil 10 is directly attached to the receiving container 2, in particular sealingly arranged thereon by heat welding. Thereby, the front opening 8 is aseptically sealed by the foil 10, in particular with the first layer 11.

Wherein a sufficiently tight attachment to the plastic material of the receiving container 2 is ensured by the polypropylene layer. By means of the aluminium layer it is ensured that the intraocular lens 3 and the interior of the receiving container 2 can be kept sterile.

The foil 10, which in this embodiment is a tape, additionally comprises a second layer 12. The foil 10 is formed integrally and the two layers 11 and 12 are made such that the ribbon-shaped foil 10 is bent at the bend 13 and thereby made double-layered on the front side 6. The second layer 12 extends in the y-direction beyond the length of the first layer 11 and is attached to a plate-like tear-off element 14. With respect to its length (x-direction), the plate-shaped tear-off element 14 is formed with a length corresponding to the length of the receiving container 2. It is clear that the tear-off element 14 is arranged adjacent to a longitudinal side of the receiving container 2.

The second layer 12 is attached to one face of a plate-like receiving portion 15 of the tear-off element 14. The layer 12 also extends over the entire length of the receiving portion 15.

On the opposite side, a similar configuration is formed. Also here, a foil 16 is arranged as a co-extruded foil of polypropylene and aluminium to hermetically and aseptically close the opening 9. Also here, the first layer 17 is arranged directly on the receiving container 2 and the second layer 19 of the one-piece foil 16 is formed via a bend 18. Also here, this second layer 19 is then attached on the outside to the receiving element 20 of the tear-off element 14.

With regard to the layers, the foils 10 and 16 have a thickness of between 0.45mm and 0.55mm, in particular 0.5 mm.

To remove the foils 10 and 16, the tear-off element 14 is grasped and peeled off in the direction of arrow P1 and thus in particular in the x-y plane. Thereby, the curved portion 13 or 18 is further pulled upward and thereby the first layers 11 and 17 connected to the receiving container 2 are separated from the receiving container 2.

In particular, it is provided that the cassette 1 shown thereby has been provided as a prefabricated unit and a corresponding module and can be supplied and transported accordingly. It can then be provided such that it is plugged or locked to the present syringe device or connected thereto in a corresponding other manner in the field.

In this particularly advantageous manner, it is no longer required to provide and deliver the intraocular lens in a separate transport container and to provide and deliver the cassette as a separate component, and it is therefore necessary to introduce the intraocular lens into the cassette in the field in a delicate and error-prone manner and in a manner which may be unhygienic. Precisely if the implementation according to fig. 1 is formed, all these defects can thus be prevented.

In fig. 2, an embodiment of an injector device 21 according to the invention is shown in a perspective view. The injector device 21 is configured as a syringe (syring) and comprises an injector tube 22. A piston 23 is guided in the syringe barrel 22, the piston 23 being displaceable in the direction of the longitudinal axis B. Moreover, syringe barrel 22 is formed for receiving cassette 1, as shown and described, for example, in fig. 1. The front side end of the syringe device 21 constitutes a syringe tip 24.

In the embodiment shown, provision is made in particular for the cassette 1 to be integrated in the syringe barrel 22. Thereby, it can be provided that the entire syringe device 21 has been completely completed and delivered, and that medical staff is no longer required to be on site yet have to mount the cartridge 1 to the syringe barrel 22.

In a particularly advantageous manner, the injector device 21 is sterilized with ethylene oxide, while the cassette 1 is steam sterilized.

Instead, after the packaging is completed, the entire device (syringe and cassette) is sterilized in one step by gamma radiation.

In a preferred manner, the entire syringe device 21 with the already arranged cassette 1 is stored in a transport container, which is then used on site to deliver the completed entire syringe device 21 to, for example, a surgeon. The user then only needs to open the transport container 1 and remove the injector device 21 shown in fig. 2 from the transport container 1.

By actuating the piston 23 and thereby pushing the piston 23 in the direction of the axis B, the piston tip (not shown in fig. 2) enters the receiving container 2. The intraocular lens located therein is then pushed out of the receiving container 2 and thereby also out of the front opening 8 along the axis B of the injector device 21 and into the injector tip 24. There, it exits in a rolled or folded manner at the front cannula end and can be introduced into the eye.

In fig. 3, an enlarged cross-section of the injector device 21 in the region of the cassette 1 is shown. Here, a state is shown in which the box is minimally opened and thus the tear-off element 14 is only slightly pulled up in the direction of arrow P1. The openings 8 and 9 are still closed here.

In fig. 4, a further perspective view of a partial section according to fig. 3 is shown, wherein here the tear-off element 14 has been pulled further in the direction of arrow P1. Wherein it can be recognized that the first layers 11 and 17 of the foils 10 and 16 have been partway away from the faces 6 and 7 of the receiving container 2. In this connection, the opening 9 is already recognizable.

Next, in fig. 5, which also shows a cross section in a perspective view, the cassette 1 is shown in a state in which the tear-off element 14 with the foils 10 and 16 is completely detached from the receiving container 2.

In addition, it can be identified that the front end of the piston 23 has a damping element 25, which is formed in particular of silicone. Then, if the piston 23 has passed through the receiving container 2 via the opening 9, it contacts the intraocular lens 3 on a path along the axis B. In which in particular the haptic 3a of the lens 3 is contacted. Then, on the opposite side of the optical portion 3b, another haptic portion 3c is similarly formed.

As already mentioned, the lens 3 is then pushed out of the receiving container 2 via the front opening 8 and introduced into the passage of the injector tip 24. This is shown in the diagram of fig. 6.

In fig. 7, a further embodiment of a part of the components of the injector device 24 is shown in a perspective view. In this configuration, a cassette 1 is provided having a receiving receptacle 2. The cartridge 1 does not comprise a tear-off element 14 as provided in fig. 1. Instead, it is provided here that the coextruded foil 10 is again arranged on the face 6 on the receiving container 2 and the opening 8 is closed off aseptically and hermetically. In this embodiment it is provided that the foils 10 are connected in only a single layer and have a defined perforated structure 26. In this configuration, the syringe tip 24 of the syringe device 21 comprises a perforating element 27 on the side facing the cartridge 1. It can have a very specifically defined perforated edge. Thereby, the perforation structure 26 is automatically cut by the perforation element 27 when assembling 24 to the cassette 1. Thereby providing access to the interior of the receiving container 2 and thus to the intraocular lens 3. The intraocular lens 3 can thus be pushed out of the receiving container 2 via the opened foil 10 in the region of the pierced perforation structure 26.

Accordingly, it can be provided that the respective foil 16 is also attached in a single layer on the opposite face 7 of the receiving container. The coextruded foil 16 also has a perforated structure. Then, it can be pierced with the front end of the piston 23.

In fig. 8, a perspective view of the implementation of fig. 7 is shown, wherein a cross-section is also shown. Wherein the shape and geometry of the perforating element 27 can be identified. For clarity. In fig. 8, the intraocular lens 3 is not drawn. At this point, it is to be noted that a damping element 28 is arranged in the interior 4 of the receiving container 2, the damping element 28 being made of silicone, for example. It is arranged adjacent to the foil 16 and between the foil 16 and the intraocular lens 3 (not shown). Damage to the intraocular lens 3 during ejection is prevented by this elastic damping element 28, which has a similar function as the damping element 25 in fig. 5 and 6. Due to the construction shown in fig. 7 and 8, it is advantageous that the front end of the piston 23 is relatively stiff and optionally also formed with a perforated edge. This allows the perforation structure 29 formed in the foil 16 to be pierced. However, damping element 28 is particularly advantageous since such a hard and inflexible piston 23 can thus damage intraocular lens 3. By the integral arrangement of the damping element 28 in the receiving container 2, also here, functional integration is ensured, and it is no longer possible to forget to attach such a damping element 28 to the piston 23 when the damping element 28 is not set to be integrated in the receiving container 2.

In fig. 9, a further embodiment is shown, which on the one hand is an embodiment of a cassette and on the other hand is an embodiment of a syringe device 21.

In this configuration, the cartridge 1 is also formed without abrasive elements for removing the foils 10 and 16. The shape of the receiving container 2 here differs from the previous embodiment. Thereby, different syringe tips 24 and/or different syringe barrels 22 can be optionally combined and connected to the cassette 1.

In fig. 10, a perspective view of the embodiment according to fig. 9 is shown. The perforation structure 26 as formed in the foil 10 is realized as a cross. The perforation structure 29 in the foil 16 is also realized correspondingly. As can be appreciated, the channels 30, 31, 32 and 33 are formed on the body of the receiving container 2. They are formed for being guided through and snapped in by the locking elements, 35, 36 and 37. Thereby, the cassette 1 can be arranged to be locked to the syringe barrel 22 in a non-destructive detachable manner. Thereby, an integral attachment is possible and the entire injector device 21 can be delivered already fully assembled. However, in particular, in the final position of the syringe tip 24, the syringe tip 24 is not yet attached to the cartridge 1, so that the perforation structure 26 is not yet pierced at this time.

In fig. 11, a further embodiment of the cassette 1 and a further embodiment of the injector device 21 are shown in a perspective view. In this configuration, unlike the implementation in fig. 1 and 7 to 10, it is provided that the front opening 8 of the receiving container 2 facing the syringe tip 24 is closed by the attached double foil 10. In this configuration, tear-off element 14 is not oriented in the x-y plane, but rather in the y-z plane. Wherein the second layer 12 of foil 10 is attached to the central panel of the tear-off element 14. The remaining arrangement and removal of the foil 10 from the front face 6 is similar to that illustrated in figure 1.

In contrast, the opening 9 facing away from the syringe tip 24 is aseptically and sealingly covered with a foil 16 similar to the configuration in fig. 7 to 10, the foil 16 being formed without such a tear-off element. Specifically, similarly to the description in fig. 7 to 10, a perforation structure 29 which can be pierced by the piston 23 is formed here.

In fig. 12, another embodiment of a syringe device 21 with another implementation of the cartridge 1 is shown. Here, the cassette 1 comprises a receiving receptacle 2, as exemplarily explained with respect to fig. 9 to 11. However, the receiving container 2 can also be formed according to the implementation in fig. 1 to 8. Outside the receiving container 2, a further container 38 is provided, which further container 38 is arranged adjacent to the front end of the receiving container 2 of the cassette 1 in the direction of the longitudinal axis a. The container 38 is filled with a viscoelastic material. At its front end 39 and its rear end 40 in the axial direction, it is hermetically closed and covered with co-extruded foils 41 and 42, respectively. In the embodiment described, each foil has a cross-shaped perforation structure 43 and 44. It can be arranged such that the foils 10 and 42 directly abut each other or are positioned at a small distance from each other.

It can also be provided that the container 38 is referred to as a chamber and thus the receiving container 2 has a chamber in which the intraocular lens 3 is arranged and has further chambers provided with viscoelastic material.

It can also be provided that the container 38 and the receiving container 2 are integrally formed and, for example, only one foil 10 or 42 is arranged as a spacer foil therebetween.

Claims (19)

1. Cartridge (1) for an intraocular lens (3), the cartridge (1) having a receiving container (2) for the intraocular lens (3), the receiving container (2) having a front face (6) and a rear face (7) in an axial direction (A) of the receiving container (2),

it is characterized in that

The front face (6) having an opening (8), the opening (8) being closed by a foil (10) attached as a lid to the receiving container (2), and/or the back face (7) having an opening (9), the opening (9) being closed by a foil (16) attached as a lid to the receiving container (2),

the foil (10,16) is connected to a tear-off element (14), the tear-off element (14) being movable relative to the receiving container (2) for tearing off the foil (10,16) from the receiving container (2), and

the foils (10,16) are integrally formed and have a bend (13,18) at the end facing away from the tear-off element (14), and a second foil layer (12,19) located on the outside with respect to the opening (8,9) of the receiving container (2) is connected to the tear-off element (14) at the free end facing away from the bend (13, 18).

2. A packet (1) according to claim 1, characterized in that it comprises a container (1) having a container opening for receiving a fluid

The foils are co-extruded foils (10, 16).

3. A packet (1) according to claim 2, characterized in that it comprises a container (1) according to claim 2

The coextruded foils (10,16) have aluminum.

4. A packet (1) according to claim 2 or 3, wherein

The coextruded foils (10,16) are of polypropylene.

5. A cartridge (1) as in any one of claims 1 to 3, characterized by

The thickness of the foils (10,16) is between 0.3mm and 6 mm.

6. A packet (1) according to claim 5, characterized in that it comprises a container (1) for containing a fluid

The thickness of the foils (10,16) is between 0.3mm and 1 mm.

7. A packet (1) according to claim 6, characterized in that it comprises a container (1) according to claim 6

The thickness of the foils (10,16) is 0.5 mm.

8. A cartridge (1) as in any one of claims 1 to 3, characterized by

The foils (10,16) are formed as a double layer over the openings (8, 9).

9. A cartridge (1) as in any one of claims 1 to 3, characterized by

The foils (10,16) are heat welded to the receiving container (2).

10. A cartridge (1) as in any one of claims 1 to 3, characterized by

A displaceable elastic damping element (28) is arranged in the receiving container (2) on the opening (9) constituting the input side opening for the piston of the injector device (21).

11. A cartridge (1) as in any one of claims 1 to 3, characterized by

The receiving container (2) has a first chamber formed for receiving the intraocular lens (3), which is closed on the openings (8,9) on both sides by foils (10,16), and has a second chamber engaged therewith and separated from the first chamber, which has a viscoelastic material, wherein the second chamber is closed on both openings by foils (41,42) as covers.

12. A cartridge (1) as in any one of claims 1 to 3, characterized by

A container (38) with viscoelastic material is arranged to engage the receiving container (2), the container (38) being closed in an overlying manner in the axial direction on both sides with foils, with co-extruded foils (41, 42).

13. A cartridge (1) as in any one of claims 1 to 3, characterized by

The foils (10,16) have a defined perforation structure (26, 29).

14. Cassette (1) according to claim 13,

it is characterized in that

The perforated structure (26,29) comprises at least two intersecting lines.

15. Injector device (21) for an intraocular lens (3), comprising a cartridge (1) according to any one of the preceding claims, wherein the cartridge (1) is fixedly arranged on the cartridge (1) on the injector tube (22).

16. Injector device (21) according to claim 15,

it is characterized in that

It has a syringe tip (24) which is formed with a perforation edge (27), by means of which perforation edge (27) the foil (10,41) of the cartridge (1) facing the syringe tip (24) can be cut open automatically when the syringe tip (24) is arranged on the syringe barrel (22) of the syringe device (21).

17. Injector device (21) according to claim 15 or 16,

it is characterized in that

The injector device (21) has a piston (23) for pushing the intraocular lens (3) out of the cartridge (1), the cartridge (23) having a perforation device by means of which the foil (16) of the cartridge (1) facing the piston (23) can be cut open automatically when the piston (23) strikes against the foil (16).

18. Injector device (21) according to claim 15 or 16, characterized in that

The cartridge (1) is steam sterilized and the syringe tip (24) and syringe barrel (22) are sterilized with ethylene oxide.

19. Injector device (21) according to claim 15 or 16, characterized in that

The injector device (21) is arranged together with the cassette (1) arranged thereon in a closed transport container.