Disposable injection needle

Abstract

Abstract 1. An expendable needle, with its cannula seated in a plastic sleeve, characterized in that the sleeve (2) is shaped as three truncated cones joined to each other, with a cylindrical aperture (7), and with the apex angle of 70-80 degrees, whereas that apex angle passes into a cylindrical aperture (5), in which the cannula (1) is so seated by melting the plastic material, that its lower end (4) protrudes not above than 0.5 mm from the aperture (5), and on the sleeve (2) circumference, trapeze-shaped ribs (3) are located in uniform distances from each other, with angle of 10-15 degrees between their side walls, whereas the cannula (1) is seated in the sleeve (2) manufactured of a thermoplastic and entirely transparent polyester.<IMAGE>

Inventors

• 👤 Wladyslaw Bujwid
• 👤 Janusz Karpinski
• 👤 Zbigniew Kaminski
• 👤 Jan Beta
• 👤 Stanislaw Cieslak

Bibliographic Details