Patents by Inventor Mark E. Larkin

Mark E. Larkin 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: 5085643
    Abstract: A combination comprising a syringe, an adaptor, a check valve, and associated connectors for an intravenous infuser for patient-controlled analgesia. The infuser comprises a cradle adapted to receive an annular or disc-shaped element fitting into the cradle and a switch adapted to disable the infuser unless such an element is fitted into the cradle. The syringe comprises a vial, a plunger arranged within the vial for relative movement of the plunger and the vial, a tubular needle extending through an axial hole of the plunger, and a flange mounted around the needle and spaced from the plunger but too small to fit into the cradle. An adaptor having an outer rim adapted to fit over the flange and into the cradle and a check valve mounted operatively in the adaptor are connected by tubular connectors to the flange. The check valve allows an infusible liquid to flow from a chamber within the vial, through the tubular needle, and through the check valve, but not oppositely.
    Type: Grant
    Filed: June 2, 1989
    Date of Patent: February 4, 1992
    Assignee: Abbott Laboratories
    Inventors: Mark E. Larkin, John E. Ogden, Dale V. Moeller
  • Patent number: 5071404
    Abstract: An injection site for the infusion of a medicament into a flow path for a parenteral fluid and, more particularly, an injection site which is essentially self-priming and air-occluding and which is of extremely simple construction and easily assembled. Furthermore, the invention is also directed to an injection site of the type described herein which is especially adapted for use as an injection port of a Y-connector utilized for an intravenous administration set. The device incorporates a self-sealing puncturable member of resilient material, such as rubber, which member is of a substantially spheroid configuration, the tubular segment so as to be in close proximity to the and which is swage-molded into a receiving housing in the tubular segment so as to be in close proximity to the inlet tubing for the flow path of the parenteral fluid.
    Type: Grant
    Filed: August 1, 1989
    Date of Patent: December 10, 1991
    Assignee: Abbott Laboratories
    Inventors: Mark E. Larkin, Richard W. Grabenkort
  • Patent number: 4895570
    Abstract: A tubing connector adapted for peritoneal dialysis connections between tubing sets and containers of dialysate. The connection prevents inadvertent disengagement of tubing sets.
    Type: Grant
    Filed: May 13, 1988
    Date of Patent: January 23, 1990
    Assignee: Abbott Laboratories
    Inventor: Mark E. Larkin
  • Patent number: 4840621
    Abstract: A device for automatically transferring a piercing pin from the port of one medical liquid container to the port of another medical liquid container. The ports are mounted to the device in opposing relationship. The piercing pin is inverted at an intermediate position between the ports.
    Type: Grant
    Filed: January 19, 1988
    Date of Patent: June 20, 1989
    Assignee: Abbott Laboratories
    Inventors: Mark E. Larkin, John E. Ogden
  • Patent number: 4786279
    Abstract: A container having two compartments for keeping two materials in separated relation. When it is desired that the two materials be intermixed, an actuator carrying a pair of piercing pins is inserted into ports of the compartments until membranes blocking exit of the materials from their respective compartment are punctured. When these membranes are punctured the materials are received at a mixing chamber where the materials are mixed.
    Type: Grant
    Filed: July 31, 1986
    Date of Patent: November 22, 1988
    Assignee: Abbott Laboratories
    Inventors: Kenneth E. Wilkinson, Kenneth H. Knox, Marc T. Hedlund, Mark E. Larkin
  • Patent number: 4781679
    Abstract: The invention is an integral container system designed for separately storing a liquid, such as a diluent, and a second substance, such as a medicament, and subsequently adding the second substance to the liquid in a simple and sterile operation. In one embodiment, a flexible I.V. bag is provided with a second substance dispensing cup containing a powdered medicament, which cup fits slidably in a sleeve passing through the walls of the bag. Fitted in the open end of the cup is a pierceable plunger. A hollow needle is held in position to pierce the plunger when the cup is pushed toward the needle. The needle is slidably held so that when it is pushed by the plunger, it will also pierce a diaphragm fitting over the sleeve. When both the plunger and the diaphragm are pierced, fluid access between the cup and the bag is had through the hollow needle. Diluent can then be injected into the cup to dissolve or slurry the powdered medicament.
    Type: Grant
    Filed: June 12, 1986
    Date of Patent: November 1, 1988
    Assignee: Abbott Laboratories
    Inventor: Mark E. Larkin
  • Patent number: 4757911
    Abstract: A thin flexible fluid-tight cover of PVC is bonded to a rigid port of a diluent container which is to be subjected to heat sterilization. The cover includes an outer flange for bonding to a complementary surface around the port, and a removable section for spanning the port. The removable section includes a central flexible diaphragm portion and a cylindrical wall portion. The diaphragm portion has at least one annular convolution whereby the diaphragm section is axially expandable by flexing of the convolution. A tear line is provided in a frangible section which joins the cylindrical wall portion to the outer flange. The cylindrical wall portion of the cover is disposed adjacent the outer surfaces of an abutment wall on the port to provide stress relief against rupture of the tear line from stresses generated in the cover during sterilization. A narrow post element is located adjacent the wall portion for concentrating manual pulling forces from an attached pull ring to a limited segment of the tear line.
    Type: Grant
    Filed: December 9, 1985
    Date of Patent: July 19, 1988
    Assignee: Abbott Laboratories
    Inventors: Mark E. Larkin, Edward S. Tripp, John S. Ziegler
  • Patent number: 4730728
    Abstract: A golf accessory carrying device as a central tubular portion with inwardly facing rims for holding golf balls and an outwardly extending flange for holding golf accessories. The device may also include a strap for attaching the device to a golf bag, golf cart or the like.
    Type: Grant
    Filed: April 14, 1986
    Date of Patent: March 15, 1988
    Inventor: Mark E. Larkin
  • Patent number: 4703864
    Abstract: A unitary molded plastic cover for a container such as a medicament vial is disclosed in which a removable cap portion is attached by a severable tear strip. A pull ring is disposed around the cap portion and attached to the tear strip through torsion hinge sections which permit pivoting of the ring from its surrounding position to a raised access position for gripping and pulling to remove the tear strip and the cap.
    Type: Grant
    Filed: May 1, 1986
    Date of Patent: November 3, 1987
    Assignee: Abbott Laboratories
    Inventors: Mark E. Larkin, Edward S. Tripp
  • Patent number: 4614267
    Abstract: A stoppered vial containing a medicament is secured through the edge of a flexible container. Mixing of the medicament in the vial with the contents of the flexible container is accomplished by removing the stopper from the vial by manipulation through the sides of the flexible container. In one embodiment, the stoppered vial is mounted through and in the edge of the flexible container and in another embodiment the flexible container has a port which will receive the stoppered vial therein in a secure manner.
    Type: Grant
    Filed: December 23, 1983
    Date of Patent: September 30, 1986
    Assignee: Abbott Laboratories
    Inventor: Mark E. Larkin
  • Patent number: 4614515
    Abstract: A stoppered drug vial forms part of a drug delivery system which maintains the sterility of the drug in storage, dilution and use. A removable, pierceable diaphragm is placed over the stopper which seals the vial. The removable, pierceable diaphragm is held in place by attachment to a skirt member which encloses and is in frictional contact with the upper portion of the vial wall. Access to the drug in the vial may be obtained by either removing the diaphragm and the stopper or piercing the diaphragm and the stopper with a cannula.
    Type: Grant
    Filed: November 21, 1985
    Date of Patent: September 30, 1986
    Assignee: Abbott Laboratories
    Inventors: Edward S. Tripp, Mark E. Larkin
  • Patent number: D288130
    Type: Grant
    Filed: June 11, 1984
    Date of Patent: February 3, 1987
    Assignee: Abbott Laboratories
    Inventors: Mark E. Larkin, Edward S. Tripp
  • Patent number: D288365
    Type: Grant
    Filed: June 11, 1984
    Date of Patent: February 17, 1987
    Assignee: Abbott Laboratories
    Inventors: Mark E. Larkin, Edward S. Tripp
  • Patent number: D288964
    Type: Grant
    Filed: June 11, 1984
    Date of Patent: March 24, 1987
    Assignee: Abbott Laboratories
    Inventors: Mark E. Larkin, Edward S. Tripp
  • Patent number: D289796
    Type: Grant
    Filed: December 10, 1984
    Date of Patent: May 12, 1987
    Assignee: Abbott Laboratories
    Inventor: Mark E. Larkin
  • Patent number: D291491
    Type: Grant
    Filed: December 10, 1984
    Date of Patent: August 18, 1987
    Assignee: Abbott Laboratories
    Inventor: Mark E. Larkin
  • Patent number: D291828
    Type: Grant
    Filed: February 7, 1985
    Date of Patent: September 8, 1987
    Assignee: Abbott Laboratories
    Inventors: Mark E. Larkin, Edward S. Tripp, Richard A. Johnson
  • Patent number: D293003
    Type: Grant
    Filed: October 15, 1984
    Date of Patent: December 1, 1987
    Inventors: Mark E. Larkin, Walter T. Szempruch, Stephen C. Yeaton
  • Patent number: D298012
    Type: Grant
    Filed: November 7, 1985
    Date of Patent: October 11, 1988
    Assignee: Abbott Laboratories
    Inventors: Mark E. Larkin, Edward S. Tripp
  • Patent number: D310881
    Type: Grant
    Filed: January 15, 1988
    Date of Patent: September 25, 1990
    Inventors: Mark E. Larkin, Robert G. Bergen