Abstract: A handgrip handle connects to an elongated protective paddle blade with an elongated trough along the length of the paddle blade and an end stop at each end of the trough. The trough receives a gutting blade when gutting a game animal to prevent puncturing the organs. The trough alternately receives a pelvic bone cutting saw when sawing the pelvic bone for removing game animal internal organs to guide the saw blade and prevent puncturing the organs. The handle may be pivotally attached to the paddle blade. A pivotable gut blade may be attached to the pivotable handle.

Abstract: Two bone sawing blades are attached in a spaced parallel alignment and attached to a handle for cutting out a section of a pelvic bone in field dressing a game animal. A pivoting handle with a side opening enables the double blades to be pivoted into the handle for storage. A rigid handle is attached to the blades by a hand shield.

Abstract: A physiological sensing stethoscope suitable for use in high-noise environments is disclosed. The stethoscope is designed to be substantially matched to the mechanical impedance of monitored physiological activity and substantially mismatched to the mechanical impedance of air-coupled acoustic activity. One embodiment of the stethoscope utilizes a passive acoustic system. Another embodiment utilizes an active Doppler system. The passive and active systems can be combined in one stethoscope enabling switching from a passive mode to an active mode suitable for use in very high-noise environments. The stethoscope is suitable for use in environments having an ambient background noise of 100 dBA and higher. The passive includes a head having a housing, a flexural disc mounted with the housing, and an electromechanical stack positioned between the housing and the flexural disc in contact with the skin of a patient. The active system detects Doppler shifts using a high-frequency transmitter and receiver.