US 5,257,979 A · Instrument for catheterization

Abstract

A system and method of catheterization includes a needle, a "Y" connector, a syringe, a dilator, a sheath, a protective sleeve and a shock sheath. This introduces a comprehensive, uniform and universal approach to catheterization. Discriminatory methods of treatment using the invention are described. Particular attention has been paid to current problems in catheterization and the prevention of transmission of communicable diseases from patient to practitioner and vice-versa (e.g., the risk of contracting the HIV virus is substantially reduced using this system and method). The invention makes possible substantial decreases in the cost of health care while improving the efficiency of diagnosis and treatment. It allows the practitioner to perform simultaneous diagnosis and treatment of diseases using the same procedure, regardless of their location in or on the body. The number and duration of hospitalization is minimized, and the quality of life and length of survival for the patient are improved.

Claims39

Dependent claims

A surgical instrument for use with a syringe barrel for drawing blood and inserting guide-wires or other instruments (devices) into a blood vessel, comprising:

a needle having an elongated shaft, including a hub end and a beveled end for puncturing the blood vessel;
said needle including a longitudinal lumen extending along the length of said shaft and parallel to said beveled end of said needle;
a hub attached to said needle, said hub having a first bore in fluid communication with said lumen, said hub being adapted to engage the syringe barrel;
said hub including a second bore in fluid communication with said lumen for selective insertion of a guide-wire into said lumen;
and
a dilator circumferentially disposed around said needle shaft and extending from said hub to adjacent said beveled end of said needle shaft.

3 more elements

A surgical instrument for use with a syringe barrel for drawing blood and inserting guide-wires or other instruments (devices) into a blood vessel, comprising:

a needle having an elongated shaft, including a hub end and a beveled end beveled toward a beveled side for puncturing the blood vessel, each of said needle, said hub end and said beveled end having an outer diameter;
said needle including a longitudinal lumen extending along the length of said elongated shaft and parallel to said beveled side of beveled end of said needle;
a hub attached to said needle, said hub having a first bore in fluid communication with said lumen, said hub being adapted to engage said syringe barrel;
said hub including a second bore in fluid communication with said lumen for selective insertion of a guide-wire into said lumen;
a Y connector attached to said hub of said needle which incorporates said lumen, said Y connector having at least one additional lumen and a self-sealing grommet;
a dilator circumferentially disposed around said needle shaft and extending from said hub to adjacent said beveled end of said needle shaft, said dilator having a self-sealing grommet;
and
a sheath circumferentially disposed around said dilator, extending from said hub to a location between said hub and said beveled end of said needle shaft, said sheath having a self-sealing grommet.

5 more elements

Dependencies are inferred from the claim text.

Instrument for catheterization

Life of this patent

Instrument for catheterization

Life of this patent

Abstract

Claims39