Dental implement for fluid aspiration and tissue retraction

Claim 2

A dental implement for the aspiration of fluids from a patient's mouth and for the retracting of soft tissues in said patient's mouth, the dental implement comprising a slender, elongate and substantially straight member having: (a) a hollow tubular portion having a longitudinal axis and having a suction end and a connection end remote from the suction end for enabling the member to be connected to a suction tube or the like; and, (b) first and second, longitudinally extending fins which project sidewardly from opposite, lower, side regions of said tubular portion, said fins being of substantially uniform width and being rigid and relatively narrow and extending along a substantial length of said tubular member from the suction end thereof and extending around the suction end of the tubular portion so as to join one another at a vertical plane through said longitudinal axis.

Claim 3

The dental implement as claimed in claim 1, wherein portions of the first and second fins around the suction end of the tubular portion are at least slightly curved downwardly so as to form an arcuate, tissue-retraction tip of said member relatively adjacent the suction end of the tubular portion.

Claim 4

The dental implement as claimed in claim 1, wherein said first and second fins are of a substantially uniform thickness.

Claim 5

The dental implement as claimed in claim 1, wherein the width of each of the first and second fins is less than the outside diameter of the tubular portion at the connection end thereof.

Claim 6

The dental implement as claimed in claim 1, wherein the connection end of the tubular member is round in transverse cross-section and wherein an upper region of the tubular portion adjacent the suction end thereof is substantially flat so that the tubular portion is thinner at the suction end than at the connection end.

Claim 7

The dental implement as claimed in claim 5, wherein the suction end of the tubular portion is formed having an open end surface which is generally planar and is at an angle relative to a plane orthogonal to said longitudinal axis so that said open end surface at the flat upper region of the tubular portion is closer to said connection end than are other regions of said open end surface.

Claim 8

The dental implement as claimed in claim 6, wherein the open end surface of the tubular portion suction end is formed having at least one recess enabling suction to be broken between said member and soft tissues of the patient's mouth.

Claim 9

The dental implement as claimed in claim 1, wherein all exposed edges of the tubular portion and the first and second fins are smoothly rounded so that there are no sharp exposed edges to cut a patient's mouth.

Claim 10

The dental implement as claimed in claim 1, wherein upper and lower surfaces of the first and second fins are smoothly flared into the outer surface of the tubular portion.

Claim 11

The dental implement as claimed in claim 1, wherein the member is constructed of a molded plastic material.

Claim 12

A dental implement for the aspiration of fluids from a patient's mouth and for the retracting of soft tissues in said patient's mouth, the dental implement comprising a slender, elongate and substantially straight member having: (a) a hollow tubular portion having a longitudinal axis and having a suction end and a connection end remote from the suction end for enabling the member to be connected to a suction tube or the like; and, (b) first and second, longitudinally extending fins which project sidewardly from opposite, lower, side regions of said tubular portion, said fins being of substantially uniform width and being rigid and relatively narrow and extending along a substantial length of said tubular portion from the suction end thereof and extending around the suction end of the tubular portion so as to join one another at a vertical plane through said longitudinal axis, portions of the first and second fins around the suction end of the tubular portion being curved downwardly so as to form an arcuate, tissue-retraction tip of said member relatively adjacent to the suction end of the tubular portion.

Claim 13

A dental implement for the aspiration of fluids from a patient's mouth and for the retracting of soft tissues in said patient's mouth, the dental implement comprising a slender, elongate and substantially straight member having: (a) a hollow tubular portion having a longitudinal axis and having a suction end and a connection end remote from the suction end for enabling the member to be connected to a suction tube or the like; and, (b) first and second, longitudinally extending fins which project sidewardly from opposite, lower, side regions of said tubular portion, said fins being of substantially uniform width and being rigid and relatively narrow and extending along a substantial length of said tubular portion from the suction end thereof and extending around the suction end of the tubular portion so as to join one another at a vertical plane through said longitudinal axis, portions of the first and second fins around the suction end of the tubular portion being curved downwardly so as to form an arcuate, tissue-retraction tip of said member relatively adjacent to the suction end of the tubular portion.

Claim 14

The dental implement as claimed in claim 11, wherein the width of each of the first and second fins is less than the outside diameter of the tubular portion at the connection end thereof.

Claim 15

The dental implement as claimed in claim 11, wherein the connection end of the tubular member is round in transverse cross-section and wherein an upper region of the tubular portion adjacent the suction end thereof is substantially flat so that the tubular portion is thinner at the suction end than at the connection end.

Claim 16

The dental implement as claimed in claim 13, wherein the suction end of the tubular portion is formed having an open end surface which is generally planar and is at an angle relative to a plane orthogonal to said longitudinal axis so that said open end surface at the flat upper region of the tubular portion is closer to said connection end than are other regions of said open end surface.

Claim 17

The dental implement as claimed in claim 14, wherein the open end surface of the tubular portion suction end is formed having at least one recess to enable suction to be broken between said member and soft tissues of the patient's mouth.

Claim 18

The dental implement as claimed in claim 11, wherein all exposed edges of the tubular portion and the first and second fins are smoothly rounded so that there are no sharp edges to cut a patient's mouth, and wherein upper and lower surfaces of the first and second fins are smoothly flared into the outer surface of the tubular portion.

Claim 19

The dental implement as claimed in claim 11, wherein the member is constructed of a molded plastic material.

Claim 20

A dental implement for the aspiration of fluids from a patient's mouth and for the retracting of soft tissues in said patient's mouth, the dental implement comprising a slender, elongate and substantially straight member having: (a) a hollow tubular portion having a longitudinal axis and having a suction end and a connection end remote from the suction end for enabling the member to be connected to a suction tube or the like, the connection end of the tubular portion being round in transverse cross-section and an upper region of the tubular portion adjacent the suction end thereof being substantially flat so that the tubular portion is thinner at the suction end than at the connection end; and, (b) first and second, longitudinally extending fins which project sidewardly from opposite, lower, side regions of said tubular portion, said fins being of substantially uniform width and being rigid and relatively narrow and extending along a substantial length of said tubular portion from the suction end thereof and extending around the suction end of the tubular portion so as to join one another at a vertical plane through said longitudinal axis, portions of the first and second fins around the suction end of the tubular portion being curved downwardly so as to form an arcuate, tissue-retraction tip of said member relatively adjacent the suction end of the tubular portion.

Claim 21

A dental implement for the aspiration of fluids from a patient's mouth and for the retracting of soft tissues in said patient's mouth, the dental implement comprising a slender, elongate and substantially straight member having: (a) a hollow tubular portion having a longitudinal axis and having a suction end and a connection end remote from the suction end for enabling the member to be connected to a suction tube or the like, the connection end of the tubular portion being round in transverse cross-section and an upper region of the tubular portion adjacent the suction end thereof being substantially flat so that the tubular portion is thinner at the suction end than at the connection end; and, (b) first and second, longitudinally extending fins which project sidewardly from opposite, lower, side regions of said tubular portion, said fins being of substantially uniform width and being rigid and relatively narrow and extending along a substantial length of said tubular portion from the suction end thereof and extending around the suction end of the tubular portion so as to join one another at a vertical plane through said longitudinal axis, portions of the first and second fins around the suction end of the tubular portion being curved downwardly so as to form an arcuate, tissue-retraction tip of said member relatively adjacent the suction end of the tubular portion.

Claim 22

The dental implement as claimed in claim 18, wherein the suction end of the tubular portion is formed having an open end surface which is generally planar and is at an angle relative to a plane orthogonal to said longitudinal axis so that said open end surface at the flat upper region of the tubular portion is closer to said connection end than are other regions of said open end surface.

Claim 23

The dental implement as claimed in claim 18, wherein said first and second fins are of a substantially uniform thickness and wherein the width of each of the first and second fins is less than the outside diameter of the tubular portion at the connection end thereof.

Claim 24

The dental implement as claimed in claim 18, wherein the open end surface of the tubular portion suction end is formed having at least one recess to enable suction to be broken between said member and soft tissues of the patient's mouth.

Claim 25

The dental implement as claimed in claim 18, wherein all exposed edges of the tubular portion and the first and second fins are smoothly rounded so that there are no sharp exposed edges to cut a patient's mouth, and wherein upper and lower surfaces of the first and second fins are smoothly flared into the outer surface of the tubular portion.

Claim 26

The dental implement as claimed claim 18, wherein the member is constructed of a molded plastic material.