Title of Invention

A GLAUCOMA SHUNT

Abstract

This invention relates to a glaucoma shunt used to shunt excess fluid in eye comprising of a tube having an opening at the distal end, the said tube is connected to a support member, a body pressure valve adhered to a support, the said valve is a single flap valve adhered to said support on all sides except for front side so as to form an opening and allow a flow of excess fluid onto said support member and to cause a distribution of the fluid into adjoining tissues:

Full Text

FIELD OF INVENTION This invention relates to a glaucoma shunt used to shunt excess fluid in eye. BACKGROUND OF INVENTION It is generally known that glaucoma arise when there is an excess of fluid in the eye, which results in an increase in pressure. Thus, it is necessary to shunt the excess fluid, as it may ultimately damage the eye. Pharmaceutical preparations are known in the art for relieving the problem, but which is effective only in mild cases of glaucoma. Surgical operations may also be effected for shunting of excess fluid. However, such operations need to be repeated after sometime. Shunts are known in the art to shunt the excess fluid from the anterior chamber of the eye to the surface of the eye, under Tenon's capsule & conjunctiva. One such known shunt is without a valve, and whereby excess fluid can be shunted, but without a controlled and regulated flow. Yet another shunt known in the art comprises a button member of polypropylene and a rigid support also of polypropylene and spaced from the button member. The shunt tube extends into a valve disposed between the button member and rigid member. The valve comprises of two flap members. In such a construction, shunting of the fluid is controlled by the displacement of the flap between the button member and rigid member. Several distinct disadvantages are associated with such a known construction of a shunt. One such disadvantage is that the two supports with the valve disposed there-between are rigid, and thereby provides only a limited control on the shunting of the excess fluid. Yet another disadvantage is that very often the two flaps tend to adhere to each other. OBJECTS OF THE INVENTION An object of this invention is to propose an improved construction of a shunt for shunting of excess fluid from eye's anterior chamber to under the Tenon's capsule of an eye. Another object of this invention is to propose an improved construction of a shunt for shunting of excess fluid from an eye, which obviates the aforesaid disadvantages. Still another object of this invention is to propose an improved construction of a shunt for shunting of excess fluid from eye's anterior chamber to under Tenon's capsule of an eye, which provides a uniform distribution of the excess fluid in the adjoining tissues. Yet another object of this invention is to propose an improved construction of a shunt for shunting of excess fluid from eye's anterior chamber to under Tenon's capsule of an eye and where the flap provided in the valve does not adhere to any adjoining surface. A further object of this invention is to propose an improved instruction of a shunt for shunting of excess fluid from eye's anterior chamber to under Tenon's capsule of an eye, which is efficient. DESCRIPTION OF INVENTION According to this invention there is provided a glaucoma shunt used to shunt excess fluid in eye comprising of a tube having an opening at the distal end, the said tube is connected to a support member, a body pressure valve adhered to a support, the said valve is a single flap valve adhered to said support on all sides except for front side so as to form an opening and allow a flow of excess fluid onto said support member and to cause a distribution of the fluid into adjoining tissues. In accordance with this invention, the body pressure valve comprises a flap valve adhered to said support member on all sides except for the said having an opening so as to allow the excess fluid to be shunted onto said support member. DESCRIPTION WITH REFERENCE TO DRAWINGS Further object and advantages of this invention will be more apparent from the ensuing description when read in conjunction with the accompanying drawings and wherein: Fig. 1. shows a side view of the shunt of a present invention, and Fig. 2. shows a plan view of the shunt of Fig. 1. Referring to the drawings, the shunt 1 of the present invention comprises a tube 2 made of silicone rubber. Tube 2 has an opening 2a at the distal end which extends into a valve 3. Specifically valve 3 is a flap valve made also of silicone rubber and adhered to a support 4. Valve 3 comprises a single flap 3a having the front surface not adhered to support 4 so as to form an opening 5. There is a certain amount of pressure between the eye and socket, and such a pressure keeps valve 3 closed. However, in the presence of excess fluid, the high pressure of fluid opens the opening 5 so as to allow a flow of the excesses fluid onto support 4, and the quantity of flow is regulated by the displacement of flap 3a. Support 4 extends beyond valve 3 to form a receptive surface 6 for receiving the shunted fluid from opening 5. The upper surface 6 a has a plurality of spaced projections 7 to form a guide for flow of the shunted fluid. The upper surface 6a extends into valve 4 and has a roughened surface 8. Such a roughened surface 8 prevents flap 4a from adhering to support 4. It is to be noted that the present invention is susceptible to modifications, adaptations and changes by those skilled in the art. Such variant embodiments employing the concepts and features of this invention are intended to be within the scope of the present invention, which is further set forth under the following claims:- WE CLAIM; 1. A glaucoma shunt used to shunt excess fluid in eye comprising of a tube having an opening at the distal end, the said tube is connected to a support member, a body pressure valve adhered to a support, the said valve is a single flap valve adhered to said support on all sides except for front side so as to form an opening and allow a flow of excess fluid onto said support member and to cause a distribution of the fluid into adjoining tissues. 2. A shunt as claimed in claim 1 wherein the support extends beyond said valve and has a plurality of projections on the upper surface. 3. A shunt as claimed in claim 2 wherein said projections are disposed in a spaced relationship to each other. 4. A shunt as claimed in claim 1 wherein the upper surface of the support within the valve is a roughened surface. 5. A glaucoma shunt substantially as herein described and illustrated. This invention relates to a glaucoma shunt used to shunt excess fluid in eye comprising of a tube having an opening at the distal end, the said tube is connected to a support member, a body pressure valve adhered to a support, the said valve is a single flap valve adhered to said support on all sides except for front side so as to form an opening and allow a flow of excess fluid onto said support member and to cause a distribution of the fluid into adjoining tissues:

Documents:

12-KOL-2006-(02-11-2012)-CORRESPONDENCE.pdf

12-KOL-2006-(02-11-2012)-PA.pdf

12-KOL-2006-(09-09-2011)-CORRESPONDENCE.pdf

12-KOL-2006-(09-09-2011)-PA.pdf

12-KOL-2006-FORM 15.pdf

12-kol-2006-granted-abstract.pdf

12-kol-2006-granted-claims.pdf

12-kol-2006-granted-correspondence.pdf

12-kol-2006-granted-description (complete).pdf

12-kol-2006-granted-drawings.pdf

12-kol-2006-granted-examination report.pdf

12-kol-2006-granted-form 1.pdf

12-kol-2006-granted-form 18.pdf

12-kol-2006-granted-form 2.pdf

12-kol-2006-granted-form 3.pdf

12-kol-2006-granted-pa.pdf

12-kol-2006-granted-reply to examination report.pdf

12-kol-2006-granted-specification.pdf