External male urinary catheter and method and apparatus for manu

Details External male urinary catheter and method and apparatus for manu External male urinary catheter and method and apparatus for manu

1990-03-30

1991-10-22

Frinks, Ronald

Surgery

Means and methods for collecting body fluids or waste material

Receptacle attached to or inserted within body to receive...

128844, A61F 544, A61F 604

Patent

active

050591908

ABSTRACT:
The neck portion (3) of an external male urinary catheter has increased wall thickness and rigidity and comprises a first part (3a) having a maximum diameter corresponding to that of the catheter body portion (1) and a second part (3b) joining a drainage tube.
Between the first and second parts of the neck portion (3) a constriction (5) is formed having axial and radial dimensions to receive and retain the catheter body portion in a rolled-up condition.
The second part (3b) of neck portion provides a bulbous surge chamber to prevent kinking of the drainage tube and back-flow of urine.

REFERENCES:
patent: Re33206 (1990-05-01), Conway et al.
patent: 2348773 (1944-05-01), Wyman
patent: 2358440 (1944-09-01), Bowman
patent: 4187851 (1980-02-01), Hauser
patent: 4475910 (1984-10-01), Conway et al.
patent: 4540409 (1985-09-01), Nystrom et al.
patent: 4869723 (1989-09-01), Harmon
patent: 4885049 (1989-12-01), Johannesson
patent: 4894059 (1990-01-01), Larsen et al.

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