Abstract: A nerve stimulating trocar assembly (500) for insertion into tissue of a patient is disclosed, the nerve stimulating trocar assembly including an elongate trocar body (510) and a nerve stimulator (550). The trocar body (510) extends from a proximal end (511) to a distal end (512) and has an elongate open channel (520), which extends along a length of the trocar body (510). The nerve stimulator (550) has a shaft (560) extending from a proximal end (561) to a distal end (562), and at least one electrode (570) at or adjacent to the distal end (562) of the shaft (560). The open channel (520) of the trocar body (510) is configured to receive both a catheter tube and the shaft (560) of the nerve stimulator (550) such that the catheter is releasably secured between the trocar body (510) and the nerve stimulator (550) in an assembled configuration. Also disclosed are trocar assemblies and a method for positioning a catheter in a target tissue site.

Abstract: Some embodiments relate to a vibration sensor. The vibration sensor comprises: a sensor base to couple to a vibration source; a piezoelectric transducer coupled on a first side of the transducer to the sensor base; at least one conductor coupled to the piezoelectric transducer; and a seismic weight positioned on a second side of the piezoelectric transducer; wherein the sensor base, the piezoelectric transducer and the seismic weight are aligned along an axis and arranged so that relative movement between the sensor base and the seismic weight arising from the vibration source causes a current to be generated in the piezoelectric transducer and an output signal corresponding to the generated current is detectable on the at least one conductor.

Abstract: Some embodiments relate to a vibration sensor. The vibration sensor comprises: a sensor base to couple to a vibration source; a piezoelectric transducer coupled on a first side of the transducer to the sensor base; at least one conductor coupled to the piezoelectric transducer; and a seismic weight positioned on a second side of the piezoelectric transducer; wherein the sensor base, the piezoelectric transducer and the seismic weight are aligned along an axis and arranged so that relative movement between the sensor base and the seismic weight arising from the vibration source causes a current to be generated in the piezoelectric transducer and an output signal corresponding to the generated current is detectable on the at least one conductor.

Abstract: The present invention relates to testing biological or industrial samples.

Abstract: Some embodiments relate to a vibration sensor. The vibration sensor comprises: a sensor base to couple to a vibration source; a piezoelectric transducer coupled on a first side of the transducer to the sensor base; at least one conductor coupled to the piezoelectric transducer; and a seismic weight positioned on a second side of the piezoelectric transducer; wherein the sensor base, the piezoelectric transducer and the seismic weight are aligned along an axis and arranged so that relative movement between the sensor base and the seismic weight arising from the vibration source causes a current to be generated in the piezoelectric transducer and an output signal corresponding to the generated current is detectable on the at least one conductor.

Abstract: Some embodiments relate to a vibration sensor. The vibration sensor comprises: a sensor base to couple to a vibration source; a piezoelectric transducer coupled on a first side of the transducer to the sensor base; at least one conductor coupled to the piezoelectric transducer; and a seismic weight positioned on a second side of the piezoelectric transducer; wherein the sensor base, the piezoelectric transducer and the seismic weight are aligned along an axis and arranged so that relative movement between the sensor base and the seismic weight arising from the vibration source causes a current to be generated in the piezoelectric transducer and an output signal corresponding to the generated current is detectable on the at least one conductor.

Abstract: A gate latch device to secure a gate in a closed or latched position to a fence or other barrier to close or block a portal formed therein comprising a latch assembly including a lower latch pin and a keeper safety catch mounted to the fence or other barrier adjacent the portal and a keeper assembly including a magnet disposed adjacent a latch pin recess mounted to the gate such that when the gate is closed the magnet attracts the lower latch pin from a normally biased upper or unlatched position to a lower or latched position drawing the lower latch pin downward into the latch pin recess against the force of the bias to prevent the gate from opening and wherein the keeper safety catch selectively engages the keeper assembly to limit the outward movement of the keeper assembly relative to the latch assembly to retain the lower latch pin from becoming dislodged from the latch pin recess to maintain the gate in the latched position.

Abstract: A gate latch device to secure a gate in a closed or latched position to a fence or other barrier to close or block a portal formed therein comprising a latch assembly including a lower latch pin and a keeper safety catch mounted to the fence or other barrier adjacent the portal and a keeper assembly including a magnet disposed adjacent a latch pin recess mounted to the gate such that when the gate is closed the magnet attracts the lower latch pin from a normally biased upper or unlatched position to a lower or latched position drawing the lower latch pin downward into the latch pin recess against the force of the bias to prevent the gate from opening and wherein the keeper safety catch selectively engages the keeper assembly to limit the outward movement of the keeper assembly relative to the latch assembly to retain the lower latch pin from becoming dislodged from the latch pin recess to maintain the gate in the latched position.