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US 12,089,935 B2Granted
Hypodermic needle that mitigates blood vessel collapse
OwnerK. B. Ford, Ronald C. Hankins +1inventors
InventorsK. B. Ford, Ronald C. Hankins, Michael B. Morgan
Life of this patent
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Abstract
An apparatus includes a hypodermic needle, a blood vessel dilator connected to the hypodermic needle, and an actuator connected to the blood vessel dilator in such a way that the actuator expands the blood vessel dilator. The blood vessel dilator helps mitigate blood vessel collapse.
Claims16
An apparatus comprising:
- a hypodermic needle;
- a blood vessel dilator connected to the hypodermic needle;
- and
- an actuator connected to the blood vessel dilator in such a way that the actuator expands the blood vessel dilator;
- wherein:
- the hypodermic needle includes a pointed terminal end and a sheath stop adjacent the pointed terminal end;
- the blood vessel dilator includes a sheath having a proximal end moveable by the actuator and a distal end contacting the sheath stop;
- the hypodermic needle includes an axis extending through a lumen thereof;
- and
- the sheath is over the hypodermic needle, the sheath having an expandable section that is expandable by compressing the sheath along the axis with the actuator.
7 more elements
An apparatus comprising:
- a hypodermic needle including an axis extending through a lumen thereof;
- a compressible blood vessel dilator over the hypodermic needle, the blood vessel dilator having an expandable section;
- a flash chamber positioned about the axis around the hypodermic needle, the flash chamber housing a flash opening of the hypodermic needle for providing a visible indication of blood flow through the lumen;
- an actuator on the flash chamber, the actuator being connected to the blood vessel dilator in such a way that the actuator compresses the blood vessel dilator thereby causing the expandable section to expand, the actuator including a blood vessel dilator receiving member positioned on a first side of the flash chamber and that receives the blood vessel dilator and slides along the axis to compress the blood vessel dilator, the hypodermic needle extending through the blood vessel dilator receiving member;
- a hub positioned about the axis around the hypodermic needle on a second side of the flash chamber opposite the first side;
- and
- a sleeve positioned about the axis and extending from the hub, the sleeve including resilient material that covers an opening of the hypodermic needle through which blood extracted through the lumen exits the lumen.
4 more elements
An apparatus comprising:
- a hypodermic needle;
- a blood vessel dilator connected to the hypodermic needle;
- and
- an actuator connected to the blood vessel dilator in such a way that the actuator expands the blood vessel dilator;
- wherein:
- the hypodermic needle includes a pointed terminal end and a sheath stop adjacent the pointed terminal end;
- the blood vessel dilator includes a sheath having a proximal end moveable by the actuator and a distal end contacting the sheath stop;
- the sheath stop is a radially enlarged section of the hypodermic needle;
- and
- the proximal end is in mechanical contact with the actuator in such a way that actuating the actuator moves the proximal end which causes the sheath to expand.
7 more elements
Dependencies are inferred from the claim text.