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US 6,186,984 B1Granted
Cannula guide device
AssigneeFukutomi Healthscience and Services Company
InventorOsamu Fukutomi
Life of this patent
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Abstract
A cannula guide device that can provide a secure and safe transfusion treatment is disclosed, comprising a cannula assembly and a needle assembly. The cannula assembly includes a cannula and a cannula holder, and the needle assembly includes a guide needle and a needle holder. The cannula guide device is characterized in that a rotary cannula arrangement is provided to steadily send the cannula relative to the guide needle toward a patient without generating a repulsive force on the needle holder to avoid pulling out the guide needle accidentally.
Claims6
A cannula guide device comprising:
- (a) a cannula assembly having a conical shape, wherein the cannula assembly comprises a cannula and a cannula holder;
- (b) a needle assembly, wherein the needle assembly comprises a guide needle and a needle holder;
- (c) a protrusion connected to the cannula holder;
- and
- (d) a needle base having a conical shape connected to the guide needle,
- (e) wherein the needle holder comprises a receptacle, wherein the receptacle includes:
- (1) the needle base and the proximal end of the cannula holder, and
- (2) a slant surface, wherein the slant surface provides the cannula holder with a forward movement when the protrusion is hooked and turned.
5 more elements
Dependencies are inferred from the claim text.