Patents by Inventor Treesa A. Spencer

Treesa A. Spencer has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4907600
    Abstract: A blood collector system utilizes a standard disposable needle assembly and standard blood collecting and receiving tubes of the type sealed by a pierceable septum. The system has a hollow cylinder, including an internally apertured sleeve into which the needle assembly is mounted and into which the sealed blood collecting tubes are inserted to be pierced by a needle of the needle assembly. A member, such as a plate, is pivotably mounted to the cylinder. A hole in the plate accommodates the needle assembly while the needle assembly is retained in the cylinder. When the blood specimen collection is complete, the plate is moved in a pivoting motion whereby it catches the needle assembly and ejects it from the cylinder. The apparatus of the invention eliminates the need for a protective sheath to be replaced on the needle assembly before the needle assembly is discarded, and thereby minimizes the health care worker's exposure to accidental needle pricks.
    Type: Grant
    Filed: July 21, 1988
    Date of Patent: March 13, 1990
    Inventor: Treesa A. Spencer
  • Patent number: 4801295
    Abstract: A disposable combination of a hypodermic syringe and needle has a sheath movably mounted on the syringe barrel to normally occupy a first position wherein the sheath extends to cover and protect the needle. In a second position of the sheath, relative to the barrel and needle, the needle is at least partially exposed. In a third position of the sheath, which is used for disposal of the syringe and needle combination, the needle is again covered by the sheath and preferably the sheath is irreversibly locked whereby abuse or misuse of the syringe and needle combination is substantially prevented. The sheath is made from a plastic material, such as styrene butadiene or acrylic styrene copolymer, which has a deflection temperature below the temperature required for heat sterilizing syringes. Consequently, upon attempted sterilization by heat, the sheath melts, thereby further rendering the combination usable only once.
    Type: Grant
    Filed: October 22, 1987
    Date of Patent: January 31, 1989
    Inventor: Treesa A. Spencer
  • Patent number: 4702738
    Abstract: A disposable combination of a hypodermic syringe and needle has a sheath movably mounted on the syringe barrel to normally occupy a first position wherein the sheath extends to cover and protect the needle. Substantially axial guide channels are provided in the exterior surface of the barrel to accept an inwardly pointed boss of the sheath to guide the sheath into a second position and a third position. In the second position of the sheath, relative to the barrel and needle, the needle is at least partially exposed. In the third position of the sheath, which is used for disposal of the syringe and needle combination, the needle is again covered by the sheath and preferably the sheath is irreversibly locked whereby abuse or misuse of the syringe and needle combination is substantially prevented. In alternative embodiments, instead of axial guide channels, the bosses of the sheath may be engaged in appropriately formed circumferential grooves or depressions formed in the outer surface of the barrel.
    Type: Grant
    Filed: May 22, 1986
    Date of Patent: October 27, 1987
    Inventor: Treesa A. Spencer
  • Patent number: D279417
    Type: Grant
    Filed: October 24, 1983
    Date of Patent: June 25, 1985
    Inventor: Treesa A. Spencer
  • Patent number: D284547
    Type: Grant
    Filed: November 28, 1983
    Date of Patent: July 8, 1986
    Inventor: Treesa A. Spencer
  • Patent number: D327573
    Type: Grant
    Filed: February 5, 1990
    Date of Patent: July 7, 1992
    Inventor: Treesa A. Spencer