Hemotek Medical Incorporated

Patrick Rousche

Charles Ventura

Richard A Scribner

Peter Tek

Adam David Hensel

Edward Paul Browka

Todd Macy

Andrew R Leopold

Andrew Black

Daniel Lane

Mark Carlson

Tissue access devices and methods of using and making the same are disclosed. The devices can have a needle, a housing having wings, a tube having a flow channel, a tube first extension, and a tube second extension, and a torsion spring having a first coil and a second coil. The first coil can have a first coil first arm and a first coil second arm. The first coil first arm can be shorter than the first coil second arm. The second coil can have a second coil first arm and a second coil second arm. The second coil first arm can be shorter than the second coil second arm. The devices can have a sensor. More energy can stored in the torsion spring when the sensor is in a sensor closed configuration than when the sensor is in a sensor open configuration.

Needle safety systems

Tissue access devices and methods of using the same are disclosed. The devices can have a sensor configured to occlude a flow path by deflecting a membrane into the flow path when the devices become dislodged from tissue. The sensor can be configured to partially or fully occlude the flow path. The sensor can have a spring. The spring can be biased to move the sensor from a sensor first configuration to a sensor second configuration when a force applied by the sensor first surface against a non-sensor surface changes from a first force to a second force less than the first force. The membrane can be deflected into the flow path when the sensor is in the sensor second configuration.

Systems and methods for automatic flow termination for fluid delivery, including a housing configured for coupling a fluid delivery tube to a needle configured for subcutaneous delivery of fluid within a tissue of a patient and a spring-loaded activation mechanism having a first orientation corresponding to a condition where the housing is disposed substantially adjacent to the tissue and the needle lodged within the tissue and a second orientation corresponding to a condition where the housing is disposed away from the tissue or the needle being dislodged from the tissue. A flow termination mechanism is coupled to the activation mechanism and having an open configuration allowing flow from the fluid delivery tube to the needle when the activation mechanism is in the first orientation and a closed configuration substantially terminating flow from the fluid delivery tube to the needle when the activation mechanism is in the second orientation.

Systems and methods for automatic termination of flow due to needle dislodgement

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Healdsburg, CA, United States of America

Patrick Rousche