Nozzle for an enema device, a packaging including the nozzle, and an enema device comprising the nozzle

Abstract

Provided is an enema device comprising a funnel-shaped enema nozzle and a plastic tube. The funnel-shaped enema nozzle comprises a flared conical proximal part that tapers at a transition into a tubular distal part having an outlet opening opposite the transition. The plastic tube is made as an integral part of the funnel-shaped nozzle by using multi-component injection molding and extends at the transition of the tubular distal part into the flared conical proximal part. At least a part of an exterior annular wall of the tubular distal part has a hydrophilic coating.

1 . An enema device comprising
 a funnel-shaped enema nozzle, the funnel-shaped enema nozzle comprising a flared conical proximal part that tapers at a transition into a tubular distal part having an outlet opening opposite the transition,   a plastic tube, which is made as an integral part of the funnel-shaped nozzle by using multi-component injection molding, the plastic tube extending at the transition of the tubular distal part into the flared conical proximal part,   
       wherein at least a part of an exterior annular wall of the tubular distal part has a hydrophilic coating. 
     
     
         2 . The enema device according to  claim 1 , wherein the plastic tube protrudes outside the flared conical proximal part and is surrounded by the flared conical proximal part. 
     
     
         3 . The enema device according to  claim 1 , wherein the entire exterior wall of the tubular distal part has a hydrophilic coating. 
     
     
         4 . The enema device according to  claim 1 , wherein at least a part of an exterior wall of the flared conical proximal part has a hydraulic coating. 
     
     
         5 . The enema device according to  claim 1 , wherein an annular edge of the outlet opening of the tubular distal part is rounded. 
     
     
         6 . The enema device according to  claim 1 , wherein an exterior diameter of the flared conical proximal part is about at least 50% larger than an exterior diameter of the tubular distal part at the outlet opening. 
     
     
         7 . The enema device according to  claim 1 , wherein an axial length of the funnel-shaped enema nozzle is between 1.2 and 1.5 times larger than an exterior diameter of the flared conical proximal part. 
     
     
         8 . The enema device according to  claim 7 , wherein the axial length of the funnel-shaped enema nozzle is between 45-95 mm. 
     
     
         9 . The enema device according to  claim 1 , wherein the hydrophilic coating is a polyvinylpyrrolidone coating. 
     
     
         10 . The enema device according to  claim 1 , wherein the hydrophilic coating is continuous, discontinuous or a combination thereof. 
     
     
         11 . The enema device according to  claim 1 , wherein the funnel-shaped enema nozzle is manufactured of flexible elastomeric polymer, such as polyurethane, polyethylene, polyvinyl chloride, silicone, styrene ethylene butylene styrene, thermoplastic polyester elastomer, or thermoplastic styrenic elastomer. 
     
     
         12 . The enema device according to  claim 1 , wherein the flared proximal part has a grasping flange. 
     
     
         13 . The enema device according to  claim 1 , wherein at least a part of an exterior wall of the funnel-shaped enema nozzle is uneven. 
     
     
         14 . The enema device according to  claim 13 , wherein the uneven part of the exterior wall of the funnel-shaped enema nozzle is an exterior wall of the flared conical proximal part of the funnel-shaped enema nozzle. 
     
     
         15 . The enema device according to  claim 13 , wherein a surface roughness of the uneven part of the funnel-shaped enema nozzle is between 2.0-3.0 R a . 
     
     
         16 . The enema device according to  claim 13 , wherein the funnel-shaped enema nozzle is manufactured by molding, where the surface of the mold cavity part corresponding to the uneven part of the funnel-shaped enema nozzle has been made uneven by abrasive blasting.