Disposable self-shielding aspirating syringe

Claim 2

A disposable self-shielding aspirating syringe comprising a body having a cavity for receiving a medical carpule, the body having a first forward end with a needle for penetrating a carpule and for injecting medicine into a patient, and the body having a second collar end into which the carpule can be inserted, a protector case adapted to slidably fit on the body, and having a first open end through which the needle may extend and a second end wherein the second end of the case and the body have cooperating detents for facilitating placement of the case with respect to the body for uncovering and covering, respectively, an exposed end of the needle, and the case further comprising at least one elongated window opening for allowing the carpule to be viewed in the body through the window, the window having first and second ends, and the body having a tab for extending through and engaging at least one of the ends of the window, and a plug and plunger assembly comprising a plug for cooperatively mating with the collar end of the body and plunger which is movable with respect to the plug and body for causing medicine from the carpule to be administered through the needle.

Claim 3

A syringe as in claim 1 wherein the exterior of the body and the interior of the case each have a substantially rectangular cross-section.

Claim 4

A syringe as in claim 2 wherein the case has a substantially rectangular exterior cross section.

Claim 5

A syringe as in claim 1 for use by dental and medical practitioners wearing a surgical glove and wherein the plunger includes a ring intended to be engaged by a gloved hand of the user of the syringe, and wherein at least the ring as a color to blend with the color of said surgical glove.

Claim 6

A syringe as in claim 4 wherein the color is ivory.

Claim 7

A syringe as in claim 4 wherein the color of the ring is ivory.

Claim 8

A syringe as in claim 2 wherein the body and protector case are both injection molded from plastic.

Claim 9

A syringe as in claim 7 for use by dental and medical practitioners wearing a surgical glove and wherein at least a portion of the plunger has a color to blend with the color of said surgical glove.

Claim 10

A syringe as in claim 8 wherein the color is ivory.

Claim 11

A syringe as in claim 1 wherein the body is formed of clear plastic.

Claim 12

A syringe as in claim 1 for use by dental and medical practitioners wearing a surgical glove and wherein the plunger and plug have a color to blend with the color of said surgical glove.

Claim 13

A syringe as in claim 11 wherein the color is ivory.

Claim 14

A syringe as in claim 1 for use by dental and medical practitioners wearing a surgical glove and wherein the body and protector case have a color to blend with the color of said surgical glove.

Claim 15

A syringe as in claim 13 wherein the color is ivory.

Claim 16

A syringe as in claim 1 wherein at least a portion of the exterior of the syringe has an ivory color.

Claim 17

A disposable self-shielding aspirating syringe comprising a body having a cavity for receiving a medical carpule, the body having a first forward end for receiving a needle for penetrating a carpule and for injecting medicine into a patient, and the body having a second collar end into which the carpule can be inserted, and the body having a wall with an opening through which a carpule can be viewed, a protector case adapted to slidably fit on the body, and having a first open end through which a needle may extend and a second end wherein the second end of the case and the body have cooperating detents for facilitating placement of the case with respect to the body for uncovering and covering, respectively, an exposed end of a needle, and the case further comprising at least one elongated window opening for allowing the carpule to be viewed through the wall opening in the body through the window, the window having first and second ends, and the body having at least one tab for extending through and engaging at least one of the ends of the window, and a plunger assembly for cooperatively mating with the collar end of the body and comprising a movable plunger which is movable with respect to the body for causing medicine from the carpule to be administered through the needle.

Claim 18

A disposable self-shielding aspirating syringe comprising a body having a cavity for receiving a medical carpule, the body having a first forward end for receiving a needle for penetrating a carpule and for injecting medicine into a patient, and the body having a second collar end into which the carpule can be inserted, and the body having a wall with an opening through which a carpule can be viewed, a protector case adapted to slidably fit on the body, and having a first open end through which a needle may extend and a second end wherein the second end of the case and the body have cooperating detents for facilitating placement of the case with respect to the body for uncovering and covering, respectively, an exposed end of a needle, and the case further comprising at least one elongated window opening for allowing the carpule to be viewed through the wall opening in the body through the window, the window having first and second ends, and the body having at least one tab for extending through and engaging at least one of the ends of the window, and a plunger assembly for cooperatively mating with the collar end of the body and comprising a movable plunger which is movable with respect to the body for causing medicine from the carpule to be administered through the needle.

Claim 19

A syringe as in claim 16 wherein the exterior of the body and the interior of the case each have a substantially rectangular cross-section.

Claim 20

A syringe as in claim 17 wherein the case has a substantially rectangular exterior cross section.

Claim 21

A syringe as in claim 16 for use by dental and medical practitioners wearing a surgical glove and wherein the body and protector case are both injection molded from plastic and have a color to blend with the color of said surgical glove.

Claim 22

A syringe as in claim 19 wherein the color is ivory.

Claim 23

A syringe as in claim 16 wherein at least a portion of the exterior of the syringe has an ivory color.

Claim 24

A disposable self-shielding aspirating syringe comprising a body formed of plastic having a cavity for receiving a medical carpule, and an open wall for allowing the carpule to be viewed through the body, the body having a first forward end with a needle for penetrating a carpule and for injecting medicine into a patient, the first end having fins for receiving a needle cover, and the body having a second collar end into which the carpule is inserted, a protector case adapted to slidably fit on the body, and having a first open end through which a needle may extend and a second end wherein the second end of the case and the body have cooperating detents for facilitating placement of the case with respect to the body for uncovering and covering, respectively, an exposed end of a needle, the detents comprising fingers on the cover for engaging slots in the body and the case further comprising an elongated window opening for allowing the carpule to be viewed in the body through the window, the window having first and second ends, and the body having a tab extending through the window for engaging an end of the window for limiting the relative travel of the case on the body, and a plug and plunger assembly comprising a plug for cooperatively mating with the collar end of the body and plunger which is movable with respect to the plug and body for causing medicine from the carpule to be administered through the needle.

Claim 25

A disposable self-shielding aspirating syringe comprising a body formed of plastic having a cavity for receiving a medical carpule, and an open wall for allowing the carpule to be viewed through the body, the body having a first forward end with a needle for penetrating a carpule and for injecting medicine into a patient, the first end having fins for receiving a needle cover, and the body having a second collar end into which the carpule is inserted, a protector case adapted to slidably fit on the body, and having a first open end through which a needle may extend and a second end wherein the second end of the case and the body have cooperating detents for facilitating placement of the case with respect to the body for uncovering and covering, respectively, an exposed end of a needle, the detents comprising fingers on the cover for engaging slots in the body and the case further comprising an elongated window opening for allowing the carpule to be viewed in the body through the window, the window having first and second ends, and the body having a tab extending through the window for engaging an end of the window for limiting the relative travel of the case on the body, and a plug and plunger assembly comprising a plug for cooperatively mating with the collar end of the body and plunger which is movable with respect to the plug and body for causing medicine from the carpule to be administered through the needle.

Claim 26

A syringe as in claim 22 wherein the body and protector case are both injection molded from plastic.

Claim 27

A syringe as in claim 22 wherein the protector case is oriented with respect to the body such that the elongated window opening in the case is arranged to allow the carpule to be viewed in the body through the window when the case is placed with respect to the body for covering an exposed end of a needle but to not expose the carpule through the window when the case is placed with respect to the body for uncovering an exposed end of the needle.

Claim 28

A syringe as in claim 23 for use by dental and medical practitioners wearing a surgical glove and wherein the body and cover have a color to blend with the color of said surgical glove.

Claim 29

A syringe as in claim 25 wherein the color is ivory.

Claim 30

A syringe as in claim 22 wherein at least a portion of the exterior of the syringe has an ivory color.

Claim 31

A medical syringe including in combination a colored surgical glove for use by dental and medical practitioners wearing said surgical glove and for injecting medication into a body, comprising a syringe body and protector case movable with respect to the body to expose a needle for injection and to cover the needle for disposal, and wherein the syringe body and case are molded of plastic and further including a plunger assembly movable for causing medication to be injected and wherein at least one of the protector case and plunger assembly is of a color to blend with the color of said surgical glove.

Claim 32

A medical syringe including in combination a colored surgical glove for use by dental and medical practitioners wearing said surgical glove and for injecting medication into a body, comprising a syringe body and protector case movable with respect to the body to expose a needle for injection and to cover the needle for disposal, and wherein the syringe body and case are molded of plastic and further including a plunger assembly movable for causing medication to be injected and wherein at least one of the protector case and plunger assembly is of a color to blend with the color of said surgical glove.

Claim 33

A syringe as in claim 28 for use by dental and medical practitioners wearing a surgical glove and wherein the protector case has a color to blend with the color of said surgical glove.

Claim 34

A syringe as in claim 28 wherein the color is ivory.

Claim 35

A syringe as in claim 29 wherein the color is ivory.

Claim 36

A disposable self-shielding aspirating syringe comprising a body having a cavity for receiving a medical carpule, the body having a first forward end for receiving a needle for penetrating a carpule and for injecting medicine into a patient, and the body having a second collar end into which the carpule can be inserted, a protector case adapted to slidably fit on the body, and having a first open end through which a needle may extend and a second end wherein the second end of the case and the body have cooperating detents for facilitating placement of the case with respect to the body for uncovering and covering, respectively, an exposed end of a needle, and the case further comprising at least one elongated opening having first and second ends, and the body having at least one tab for extending through and engaging at least one of the ends of the elongated opening, and a plunger assembly for cooperatively mating with the collar end of the body and comprising a movable plunger which is movable with respect to the body for causing medicine from the carpule to be administered through the needle.

Claim 37

A disposable self-shielding aspirating syringe comprising a body having a cavity for receiving a medical carpule, the body having a first forward end for receiving a needle for penetrating a carpule and for injecting medicine into a patient, and the body having a second collar end into which the carpule can be inserted, a protector case adapted to slidably fit on the body, and having a first open end through which a needle may extend and a second end wherein the second end of the case and the body have cooperating detents for facilitating placement of the case with respect to the body for uncovering and covering, respectively, an exposed end of a needle, and the case further comprising at least one elongated opening having first and second ends, and the body having at least one tab for extending through and engaging at least one of the ends of the elongated opening, and a plunger assembly for cooperatively mating with the collar end of the body and comprising a movable plunger which is movable with respect to the body for causing medicine from the carpule to be administered through the needle.

Claim 38

A syringe as in claim 32 wherein the exterior of the body and interior of the case each have a substantially rectangular cross-section, and wherein the body and protector case are both injection molded from a plastic having a substantially ivory color.

Claim 39

A syringe as in claim 32 wherein the first forward end of the body has a plurality of hub support vanes having edges with small radial protrusions thereon, and the first open end of the protector case has a like plurality of slots through which the edges of the vanes may extend and wherein the radial protrusions can provide an interference fit with an interior bore of a needle cap adapted to cover a needle extending through the first open end of the protector case.

Claim 40

A syringe comprising a body having a cavity for receiving medicine, the body having a first forward end for receiving a needle for injecting medicine into a patient, a protector case adapted to slidably fit on the body, and having a first open end through which a needle may extend and a second end wherein the second end of the case and the body have cooperating detents for facilitating placement of the case with respect to the body for uncovering and covering, respectively, an exposed end of a needle, and the case further comprising at least one elongated opening having first and second ends, and the body having at least one tab for extending through and engaging at least one of the ends of the elongated opening, a plunger assembly for cooperatively mating with the second end of the body and comprising a movable plunger which is movable with respect to the body for causing medicine from the carpule to be administered through the needle, and wherein the first forward end of the body has a plurality of hub support vanes having edges with small radial protrusions thereon, and the first open end of the protector case has a like plurality of slots through which the edges of the vanes may extend and wherein the radial protrusions can provide an interference fit with an interior bore of a needle cap adapted to cover a needle extending through the first open end of the protector case.

Claim 41

A syringe comprising a body having a cavity for receiving medicine, the body having a first forward end for receiving a needle for injecting medicine into a patient, a protector case adapted to slidably fit on the body, and having a first open end through which a needle may extend and a second end wherein the second end of the case and the body have cooperating detents for facilitating placement of the case with respect to the body for uncovering and covering, respectively, an exposed end of a needle, and the case further comprising at least one elongated opening having first and second ends, and the body having at least one tab for extending through and engaging at least one of the ends of the elongated opening, a plunger assembly for cooperatively mating with the second end of the body and comprising a movable plunger which is movable with respect to the body for causing medicine from the carpule to be administered through the needle, and wherein the first forward end of the body has a plurality of hub support vanes having edges with small radial protrusions thereon, and the first open end of the protector case has a like plurality of slots through which the edges of the vanes may extend and wherein the radial protrusions can provide an interference fit with an interior bore of a needle cap adapted to cover a needle extending through the first open end of the protector case.

Claim 42

A syringe as in claim 35 wherein the exterior of the body and interior of the case each have a substantially rectangular cross-section, and wherein the body and protector case are both injection molded from a plastic.