Enema syringe

Claim 2

A disposable catheter for use in flushing a body cavity comprising: 1. a syringe barrel open at one end and a cannula fixed thereto at the other end thereof; 2. said barrel adapted to have placed and contained therein a flushing solution; 3. a through bore in said cannula communicating with said barrel and the solution therein; 4. a movable plug positioned to close off the open end of the barrel and having engageable means at one end thereof facing said open end of the barrel; 5. a cannula cover mounted on said cannula, said cover having an innercross section along its entire length which is greater than the cross section of the cannula to define a discreet annular space between the cover and the cannula along its entire length, and an inner plug formed in one end of said cover and inserted in said through bore of said cannula when the cover is positioned thereon for sealing said bore; 6. a lubricant contained in said cover and surrounding and coating the outer surface portion of the cannula in the space between the cannula and cover, said cover having first and second cooperating means formed thereon, one of which is located in the end of said cover remote from said inner plug and the other of which is located on said cannula adjacent said barrel for removably securing the cover to the cannula without disturbing the lubricant thereon; and 7. means on the outer surface of said one end of said cover, adjacent said inner plug, adapted to engage the engageable means of said plug in siad barrel, whereby said cover may be removed from said cannula exposing the lubricated portion thereof and said cover may function as a plunger for the plug to expel the enema solution through the cananula opening.

Claim 3

said barrel adapted to have placed and contained therein a flushing solution;

Claim 4

said barrel adapted to have placed and contained therein a flushing solution;

Claim 5

A disposable catherter as defined in claim 1, wherein the barrel and the canula are integrally formed from an organic plastic material.

Claim 6

A disposable catheter as defined in claim 1 and also including finger grips on said barrel to facilitate movement of the plug through the barrel.

Claim 7

a through bore in said cannula communicating with said barrel and the solution therein;

Claim 8

a through bore in said cannula communicating with said barrel and the solution therein;

Claim 9

a movable plug positioned to close off the open end of the barrel and having engageable means at one end thereof facing said open end of the barrel;

Claim 10

a movable plug positioned to close off the open end of the barrel and having engageable means at one end thereof facing said open end of the barrel;

Claim 11

A disposable catheter as defined in claim 1 including seal means removably mounted over the open end of the barrel to seal the barrel prior to use of the catheter.

Claim 12

A disposable catheter for use in flushing a body cavity comprising, a hollow syringe barrel having an opening at one end with an integrally formed elongated cannula at its opposite end, said barrel being adapted to have placed and container therein a flushing solution, and said cannula having a longitudinally extending through bore formed therein providing communication between the interior of the barrel and the exterior thereof to permit discharge of said solution; a movable plug having engageable means at one end thereof facing said one end of said barrel and being positioned in said barrel in slidable relation thereto for closing the opening at said one end thereof; and a cover removably mounted on said cannula, said cover having an inner-cross section along its entire length which is greater than the cross section of the cannula to define a discreet annular space between the cover and the cannula along its entire length, and an inner plug formed in one end of said cover and snap fitted in the longitudinal bore of said cannula when the cover is positioned thereon for sealing said bore; a lubricant contained in said cover surrounding and coating the outer surface portion of the cannula in the space between the cannula and cover, said cover haviNg engageable first and second cooperating means formed thereon, one of which is located in the end of said cover remote from said inner plug and the other of which is located on said cannula adjacent said barrel for removably securing the cover to the cannula without disturbing the lubricant thereon; and means on the outer surface of said one end of said cover, adjacent said inner plug, for engaging the engageable means of said plug in said barrel when the cover is removed from the cannula whereby the lubricated cannula is exposed for use and the cover is adapted to function as a plunger for the plug in said barrel to expel the solution through the longitudinal bore in the cannula.

Claim 13

A disposable catheter for use in flushing a body cavity comprising, a hollow syringe barrel having an opening at one end with an integrally formed elongated cannula at its opposite end, said barrel being adapted to have placed and container therein a flushing solution, and said cannula having a longitudinally extending through bore formed therein providing communication between the interior of the barrel and the exterior thereof to permit discharge of said solution; a movable plug having engageable means at one end thereof facing said one end of said barrel and being positioned in said barrel in slidable relation thereto for closing the opening at said one end thereof; and a cover removably mounted on said cannula, said cover having an inner-cross section along its entire length which is greater than the cross section of the cannula to define a discreet annular space between the cover and the cannula along its entire length, and an inner plug formed in one end of said cover and snap fitted in the longitudinal bore of said cannula when the cover is positioned thereon for sealing said bore; a lubricant contained in said cover surrounding and coating the outer surface portion of the cannula in the space between the cannula and cover, said cover haviNg engageable first and second cooperating means formed thereon, one of which is located in the end of said cover remote from said inner plug and the other of which is located on said cannula adjacent said barrel for removably securing the cover to the cannula without disturbing the lubricant thereon; and means on the outer surface of said one end of said cover, adjacent said inner plug, for engaging the engageable means of said plug in said barrel when the cover is removed from the cannula whereby the lubricated cannula is exposed for use and the cover is adapted to function as a plunger for the plug in said barrel to expel the solution through the longitudinal bore in the cannula.

Claim 14

a cannula cover mounted on said cannula, said cover having an innercross section along its entire length which is greater than the cross section of the cannula to define a discreet annular space between the cover and the cannula along its entire length, and an inner plug formed in one end of said cover and inserted in said through bore of said cannula when the cover is positioned thereon for sealing said bore;

Claim 15

a cannula cover mounted on said cannula, said cover having an innercross section along its entire length which is greater than the cross section of the cannula to define a discreet annular space between the cover and the cannula along its entire length, and an inner plug formed in one end of said cover and inserted in said through bore of said cannula when the cover is positioned thereon for sealing said bore;

Claim 16

a lubricant contained in said cover and surrounding and coating the outer surface portion of the cannula in the space between the cannula and cover, said cover having first and second cooperating means formed thereon, one of which is located in the end of said cover remote from said inner plug and the other of which is located on said cannula adjacent said barrel for removably securing the cover to the cannula without disturbing the lubricant thereon; and

Claim 17

a lubricant contained in said cover and surrounding and coating the outer surface portion of the cannula in the space between the cannula and cover, said cover having first and second cooperating means formed thereon, one of which is located in the end of said cover remote from said inner plug and the other of which is located on said cannula adjacent said barrel for removably securing the cover to the cannula without disturbing the lubricant thereon; and

Claim 18

means on the outer surface of said one end of said cover, adjacent said inner plug, adapted to engage the engageable means of said plug in siad barrel, whereby said cover may be removed from said cannula exposing the lubricated portion thereof and said cover may function as a plunger for the plug to expel the enema solution through the cananula opening.

Claim 19

means on the outer surface of said one end of said cover, adjacent said inner plug, adapted to engage the engageable means of said plug in siad barrel, whereby said cover may be removed from said cannula exposing the lubricated portion thereof and said cover may function as a plunger for the plug to expel the enema solution through the cananula opening.