Disposable syringe

Claim 2

A disposable syringe in which at least some of the several members comprising the syringe assembly are removably attachable in a selected manner to form said assembly, said members when in a disassembled array being adapted for storage in a compact package, the disposable syringe comprising: a flexible and readily foldable bag having fluid retaining properties and sized so as to be readily grasped and squeezed for the administration of the syringe, said bag having an open end of a predetermined size; end-fitting means including a portion of tubular configuration sized for and engaging the open end of the flexible bag in axially overlapped relation, said end-fitting means including a cap portion having a nozzle-receiving opening; and elongated nozzle meanS of generally tubular configuration, having an end fitted to said opening and carried by said cap portion in a fluid-tight manner, said nozzle means having at least one discharge port; said cap portion including an axially extending circumferential wall detachably secured to said tubular member in radially stressed register with a circumferentially continuous area of said bag, and the axial extent of said tubular configuration being at least twice the axial extent of said circumferential wall, whereby a substantial axial extent of said tubular configuration projects beyond said wall as a means of firm manual grasp independent of said cap portion or of said nozzle means, for selective assembly, disassembly, filling and administration of the douche.

Claim 3

Disposable-syringe means comprising a flexible and readily foldable bag having fluid-retaining properties and sized so as to be readily grasped and squeezed for the administration of the syringe, said bag having an open end of predetermined size, and removably attachable end-fitting means including a tubular sleeve sized to accept and removably retain said bag at said open end; said bag being a length of tubular plastic material closed only at one end, thereby defining said open end at the unclosed end of said material, said length being of generally rectangular planform when flattened in readiness for assembly to said end-fitting means; said end-fitting means including a closure having a nozzle-receiving opening, and nozzle means removably fitted at the nozzle-receiving opening of said closure; and means including a circumferentially continuous flange carried by said closure and removably secured in telescoped relation with only an end part of said tubular sleeve, said last-defined means providing a liquid-sealed connection to said bag with the open end thereof circumferentially interposed between said means and said tubular sleeve, the axial extent of said tubular sleeve being at least twice the axial extent of the telescoped part of said flange, whereby a substantial axial extent of said tubular sleeve projects beyond the telescoped region as a means of firm manual grasp independent of said closure or of said nozzle means, for selective assembly, disassembly, filling and administration of the douche.

Claim 4

Disposable-syringe means comprising a flexible and readily foldable bag having fluid-retaining properties and sized so as to be readily grasped and squeezed for the administration of the syringe, said bag having an open end of predetermined size, and removably attachable end-fitting means including a tubular sleeve sized to accept and removably retain said bag at said open end; said bag being a length of tubular plastic material closed only at one end, thereby defining said open end at the unclosed end of said material, said length being of generally rectangular planform when flattened in readiness for assembly to said end-fitting means; said end-fitting means including a closure having a nozzle-receiving opening, and nozzle means removably fitted at the nozzle-receiving opening of said closure; and means including a circumferentially continuous flange carried by said closure and removably secured in telescoped relation with only an end part of said tubular sleeve, said last-defined means providing a liquid-sealed connection to said bag with the open end thereof circumferentially interposed between said means and said tubular sleeve, the axial extent of said tubular sleeve being at least twice the axial extent of the telescoped part of said flange, whereby a substantial axial extent of said tubular sleeve projects beyond the telescoped region as a means of firm manual grasp independent of said closure or of said nozzle means, for selective assembly, disassembly, filling and administration of the douche.

Claim 5

Disposable-syringe means according to claim 2, in which interengaging radially extending means on said sleeve and flange have separable engagement to selectively retain said sleeve and flange in position secured to each other and to the open end of said bag.

Claim 6

Disposable-syringe means according to claim 3, in which said interengaging means includes thread elements.

Claim 7

Disposable-syringe means according to claim 3, in which one of said sleeve and flange parts is resiliently deformable, and in which said interengaging means includes coacting circumferential groove and bead formations on said sleeve and flange.

Claim 8

Disposable-syringe means according to claim 3, in which one of said sleeve and flange parts is resiliently deformable, and in which said interengaging means includes coacting circumferential inward and outward bead formations on said sleeve and flange.

Claim 9

Disposable-syringe means according to claim 3, in which said radially extending means is selectively engageable and disengageable by snap action.

Claim 10

Disposable-syringe means according to claim 3, in which said sleeve is of such substantial axial extent as to constitute a body for containment of bag and nozzle elements, when in disassembled relation, in readiness for later assembly.

Claim 11

Disposable-syringe means according to claim 2, in which said nozzle means includes gasket means of resilient material at the fit of said nozzle means at the nozzle-receiving opening.

Claim 12

Disposable-syringe means according to claim 2, in which said closure member includes gasket means of resilient material within said flange and in radial registration with the adjacent axial end of said sleeve.

Claim 13

Disposable-syringe means according to claim 2, in which the Bore of said sleeve includes a circumferentially continuous band of self-adhesive material.

Claim 14

Disposable-syringe means according to claim 2, in which the mouth of said bag includes a ring of resilient material, and in which the separably engageable parts of said sleeve and flange are in sufficiently close clearance relation to resiliently compress said ring.

Claim 15

Disposable-syringe means according to claim 12, in which said sleeve has an externally exposed peripheral groove in the region of flange engagement, said ring being seated in said groove.

Claim 16

Disposable-syringe means according to claim 2, in which said sleeve has external friction-ridge formations in the region beyond that of overlap with said flange.

Claim 17

Disposable-syringe means according to claim 2, in which said bag fully lines said sleeve and is folded back over the secured end of said sleeve, being there compressed by the engaged coaction of overlapped flange and sleeve portions.

Claim 18

Disposable-syringe means according to claim 2, in which the nozzle-receiving opening is of relatively large diameter for spash-free accommodation of faucet filling with said nozzle means removed.