Trauma minimizing dart

Details Trauma minimizing dart Trauma minimizing dart

1986-09-03

1988-04-05

Truluck, Dalton L.

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

604272, 102512, 273418, A61M 520

Patent

active

047356120

ABSTRACT:
The invention is directed toward an injecting dart having improved vent and barb designs and reduced weight. The dart (10, 10') preferably includes a needle (12, 12') and a body having a forward section (14, 14') and a tail section (16, 16'). The needle (12, 12') forms an integral barb (24, 24'). In one embodiment (10), the tail section (16) includes several fins (17) with vent holes (38) between adjacent pairs of fins (17). In another embodiment (10') vents are formed by slots (52'), threads (54') and flats (56') on the threads (54'). The integral barb (24, 24') eliminates barb
eedle bonding problems. The multiple vent holes (38, 52') permit free movement of the dart's piston, thereby ensuring complete and sufficiently rapid delivery of the liquid to the animal. In one embodiment, (10') the needle (12') is integral with the forward section (14' ) so as to increase the reliability and reduce the weight of the dart (10'). The fins (17') of dart (10') are preferably relieved, also to reduce weight.

REFERENCES:
patent: 2348337 (1944-05-01), Francis
patent: 2512568 (1950-06-01), Saffir
patent: 2854925 (1958-10-01), Crockford et al.
patent: 3022785 (1962-02-01), Crockford et al.
patent: 3207157 (1965-09-01), Murdoch
patent: 3209695 (1965-10-01), Crockford et al.
patent: 3209696 (1965-10-01), Palmer et al.
patent: 3386381 (1968-06-01), Ferb
patent: 3715990 (1973-02-01), Palmer
patent: 4103893 (1978-08-01), Walker
patent: 4383530 (1983-05-01), Bruno

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