DEVICE FOR PREPARING A BIOLOGICAL WOUND DRESSING MADE OF AUTOLOGOUS FIBRIN

Abstract

A device for preparing a biological wound dressing made of autologous fibrin. The device includes a cylindrical container with a bottom which is inclined from the side slopes towards a central channel with a slope that leads the liquid sealant remaining from pressing the fibrin clot through the sieve towards the outlet and from there to the multiduct collection system.

Claims

1-5. (canceled)

6. A device for preparing a biological wound dressing made of autologous fibrin, made from material biocompatible with human blood, comprising: a container with a bottom with side slopes and a channel with a drop in a direction of a nozzle; and a stopper support a sieve with orifices of two diameters beneath a lid for pressing a fibrin clot made of a patient's own blood, which flows through the orifices to a multi-path collecting system.

7. The device for preparing a biological wound dressing made of autologous fibrin, according to claim 6, further comprising a multi-path system deriving from a tip with latches, formed of at least one hose connected to a valve with at least two pathways connected by hoses to syringes for suction of the liquid sealant.

8. The device for preparing a biological wound dressing made of autologous fibrin, according to claim 6, further comprising an orifice for receiving conical molds with orifices.

9. The device for preparing a biological wound dressing made of autologous fibrin, according to claim 8, further comprising a squeezing of the fibrin clot in the molds by a dowel pin.

10. The device for preparing a biological wound dressing made of autologous fibrin, according to claim 8, further comprising the creation of a curative through the use of orifices, and alveolar curatives through the use of molds in the orifices.

Description

[0021] Below, the invention is explained with reference to the attached designs for non-limiting, illustrative purposes, where the following are represented:

[0022] FIG. 1: Perspective view of the Device for Preparing a Biological Wound Dressing Made of Autologous Fibrin;

[0023] FIG. 2: Partial cross-section perspective view of the Device for Preparing a Biological Wound Dressing Made of Autologous Fibrin;

[0024] FIG. 3: Exploded perspective view of the Device for Preparing a Biological Wound Dressing Made of Autologous Fibrin;

[0025] FIG. 4: Front cross-sectional view of the Device for Preparing a Biological Wound Dressing Made of Autologous Fibrin;

[0026] FIG. 5: Side cross-sectional view of the Device for Preparing a Biological Wound Dressing Made of Autologous Fibrin;

[0027] FIG. 6: Side cross-sectional view of the Device for Preparing a Biological Wound Dressing Made of Autologous Fibrin, showing use and curative created;

[0028] FIG. 7: Side cross-sectional view of the Device for Preparing a Biological Wound Dressing Made of Autologous Fibrin, showing use with mold and alveolar curative created.

DETAILED DESCRIPTION OF THE INVENTION

[0029] The Device for Preparing a Biological Wound Dressing Made of Autologous Fibrin consists of a device (1) composed of a cylindrical container (2) with a bottom (3) with side slopes () directed towards a central channel (4) with a slope (), which directs the liquid sealant (5), left over from the pressing of the fibrin clot (6) through a sieve (7), in the direction of the exit nozzle (8), and thence to the multi-path collecting system (9).

[0030] More specifically, the device (1) is manufactured from material that is biocompatible with human blood, preferably polypropylene sterilized with ethylene oxide, and is composed of a cylindrical container (2) with a bottom (3) with side slopes () directed towards a central channel (4) with a slope (), ending in a nozzle (8) which receives a tip (10) with latches (11), ensuring fastening to said container (2). A multi-path collecting system (9) originates from the tip and it consists of at least one hose (12) connected to a valve (13) with at least two pathways, each connected by hoses (14) to syringes (15), where the liquid sealant (5) left over from the squeezing of the fibrin clot (6) is stored, thus allowing its full use. On the inner wall of the container(2) there are perimeter stoppers (16) that serve as bases to support the sieve (7) with two diameters of orifices (17 and 18), maintaining a space (X) in relation to the bottom (3), sufficient for the draining of the liquid sealant (5) in the direction of the multi-path collection system (9). For this purpose, the fibrin clot (6) is placed over the sieve (7) and respective orifices (17), and subjected to light compression exerted by the lid (T) whose handle (19), design and dimensions allow the internal drainage into the container (2), creating a standardized, homogeneous curative (20) with symmetry of size and thickness. Finally, the larger orifices (18) are designed to receive conical molds (21) whose ends possess orifices (22) for the drainage of the liquid sealant (5) left over from the pressing of the fibrin clot (6) produced by an appropriate dowel pin (23), thus creating an alveolar curative (24). Similarly, the remaining liquid sealant (5) is captured by the multi-path collecting system (9), and fully used.

[0031] For the reasons provided above, the original disposable device made from material biocompatible with human blood exhibits a high degree of novelty since it enables the autologous preparation of the curative, without any kind of loss/waste of the biological sealants that flow through a sterile circuit in a closed system without margin for contamination which, added to its utility, makes it deserving of the patent privilege.