Surgery – Instruments – Sutureless closure
Patent
1997-06-27
1998-09-22
Jackson, Gary
Surgery
Instruments
Sutureless closure
604 82, 604197, 604240, A61B 1704
Patent
active
058108858
DESCRIPTION:
BRIEF SUMMARY
The invention relates to a device for applying one or several fluids, particularly a multi-component fluid which is, for example, a tissue adhesive or dental adhesive. Such tissue adhesives are used for the seamless or suture-supporting connection of human or animal tissue or organ parts, closing a wound and/or hemostasis. These tissue adhesives comprise several components and are suitably formed by bringing together human or animal proteins and coagulation factors promoting hemocoagulation in situ. To be able to apply the adhesives' components more easily, they are sprayed onto the application site together with a medical gas (oxygen).
BACKGROUND OF THE INVENTION
Application devices of the kind mentioned above are known, for example, from EP 0 037 393 BE, EP 0 210 160 B2, U.S. Pat. No. 4,874,368, DE-OS 42 23 356, and EP 0 315 222 B1. In these known application devices, the individual components are fed from syringe bodies through channels to the discharge site of the device. In some of the known application devices, these channels extend through a head piece at whose side facing away from the syringe bodies, a multiple lumen tube is connected. This tube is arranged at a connection site of the head piece towards which (closely adjacent) the channels lead, which, in turn, start from the inlet side of the head piece facing away from the connection site. The connection devices (cones) for connecting the syringe bodies are also located on this inlet side.
In the case of the application device according to EP 0 315 222 B1, a four-lumen catheter is connected to the head piece. Two of the lumina of the catheter are used for transporting the components of the tissue adhesive, whereas a medical gas is fed through the third lumen. In the remaining fourth lumen, there is a metal wire which is plastically deformable (shaping wire). By manually bending the multiple lumen tube, the purposeful application of the adhesive at certain sites, particularly those difficult to access, is simplified. Naturally, the metal wire has a relatively high resistance force when it is subject to forces in axial direction. Hence, there is the danger that the multiple lumen tube does not immediately yield if it hits an obstacle in axial extension of the shaping wire. Further, there is the danger of blocking one or several of the lumina of the catheter, if the metal wire is bent excessively or with a too small bending radius.
In the device according to U.S. Pat. No. 4,874,368, the channels feeding the components are made of metal cannulas led through a common sleeve in parallel and closely adjacent. By manually bending this sleeve, the application of the adhesive at sites difficult to access can be simplified. There is a certain drawback, however, that the channels extending through the tubular body (metal cannulas with enclosing sleeve) are only conditionally flexible when the tubular body hits an obstacle.
SUMMARY OF THE INVENTION
It is the object of the present invention to provide an application device for multi-component products, particularly for medical tissue adhesives or dental adhesives, wherein the above-described drawbacks do not occur and which is sufficiently flexible when hitting obstacles, particularly when creating a tubular body which can easily be plastically deformed or bent.
In order to achieve this object, the invention provides a device for applying one or several fluids, particularly a multi-component fluid such as medical tissue adhesive or dental adhesive, which is provided with a head piece comprising channels for each fluid, which extend from an inlet side of the head piece to a connection site of the head piece, and a tubular body comprising an inlet end facing the connection site of the head piece and an outlet end facing away from the inlet end, there being further provided in the device of the invention an outer wall being configured, at least sectionally, such that the tubular body is plastically deformable, particularly plastically bendable.
In the device of the invention, the outer wall of the tubular
REFERENCES:
patent: 4424913 (1984-01-01), Ko
patent: 4874368 (1989-10-01), Miller et al.
patent: 4898460 (1990-02-01), Magninat et al.
LandOfFree
Device for applying one or several fluids does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Device for applying one or several fluids, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device for applying one or several fluids will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1618947