Abstract: The present invention discloses a shed tunnel structure for preventing a falling rock, including a shed tunnel body and a buffer plate for bearing impact of the falling rock, where the shed tunnel body includes a first supporting structure, and the first supporting structure is arranged on a side away from a ramp; one end of the buffer plate is connected to the ramp; a side face of the buffer plate close to the shed tunnel body is in movable contact with the first supporting structure, and the contact position is close to the other end of the buffer plate. The objective of resisting continuous impact of the falling rock can be achieved through the structural design.

Abstract: An ultrahigh-pressure acid-fracturing isodiametric hose assembly, comprising a hose body and a metal joint. The metal joint comprises an inner tube, a first outer tube the inner tube, and a second outer tube. The first outer tube and the second outer tube each is an independent pressing part. An external groove is provided at an outer wall of the inner tube. An end of the first outer tube comprises an internal ridge which matches the external groove for snapping. The terminal of the inner tube comprises a connecting portion. An outer wall of the inner tube comprises a first protrusion, and an inner wall of the first outer tube comprises a second protrusion engaging with the first protrusion. The hose body is clamped between the first protrusion and the second protrusion that are engaged. An inner wall of the second outer tube comprises multiple micro-protrusions.

Abstract: The present disclosure provides systems that include a flow probe that senses fluid flow or mass flow of fluid delivery to a patient. Based at least in part on the sensed fluid or mass flow, the flow probe provides flow-related data (e.g., volume or mass flow rate) that the system uses to derive a volume of fluid being delivered. The fluid can be delivered from an IV bag, another in-line port, or a combination of the two. The disclosed systems provide fluid volume and/or fluid rate for display to a clinician and an informative understanding of what volume of fluid/mass a patient has received.

Abstract: Disclosed is finger cuff that is connectable to a patient's finger to be used in measuring the patient's blood pressure by a blood pressure measurement system. The finger cuff may comprise a fixed shell and a bladder. The fixed shell may have a finger cavity, in which the finger cavity of the fixed shell may be placed around a patient's finger to surround a large portion of the patient's finger including the middle knuckle to reduce finger movement, and in particular, to reduce relative movement between the middle phalanx and the proximal phalanx. Further, the fixed shell includes a support member that extends away from the finger cavity to abut against the underside of the patient's hand to reduce bending of the finger relative to the hand.

Abstract: Disclosed is finger cuff that is connectable to a patient's finger to aid in measuring the patient's blood pressure. The finger cuff may comprise: a shell, a bladder, and a clamping mechanism. The shell may have a finger cavity. The finger cavity of the shell may be placed under a patient's finger to receive the patient's finger. Further, the finger cavity may include a light emitting diode (LED)—photodiode (PD) pair. The bladder may include a pair of openings and the bladder may be mountable within the finger cavity such that the pair of openings surround the LED-PD pair, respectively. The clamping mechanism may be used to suitably clamp the patient's finger received in the finger cavity of the shell against the bladder mounted within the finger cavity of the shell.

Abstract: Disclosed is a clamp mechanism to assist in attaching a finger cuff to a patient's finger by a medical assistant. The clamp mechanism may comprise a mounting structure including a top portion having a gap, opposed descending sides, an exterior, and a pair of opposed clamping members. The pair of opposed clamping members extend from opposite sides of the exterior of the mounting structure to form a clamping slot over the gap. The clamping slot is openable by the medical assistant to allow for the pulling of the first side and the second side of the finger cuff by the medical assistant through the gap and the opened clamping slot. Further, the clamping slot is closeable by the medical assistant so that the first side and the second side of the finger cuff are clamped together such that the finger cuff is firmly attachable to the patient's finger.

Abstract: Disclosed herein are devices, systems, and methods that control liquid in intravenous (IV) infusion, providing a high flow state to deliver a fluid bolus and a low flow state to provide an uninterrupted flow of liquid to the subject. As described herein, there are situations where it is advantageous to provide a bolus of fluid, corresponding to a relatively high flow rate, and when a bolus is not being delivered it is desirable to provide an uninterrupted low flow. Accordingly, the devices and methods are directed to providing an uninterrupted low flow in the IV line to keep the line open and a device (e.g., a valve) to control flow at a higher targeted rate for bolus delivery.

Abstract: A device for a non-invasive pressure blood pressure measurement, comprising: a pressure cuff, for placement around a body part such as a finger; which cuff comprises: a bladder, for wrapping around the body part; a light source, for sending light through the body part; and a light detector, for detecting the light passed through the body part and for providing a signal in dependence of the amount of detected light; a first fluid reservoir, in fluid connection with the bladder, to supply fluid to the bladder; a second fluid reservoir, in fluid connection with the bladder, to receive fluid from the bladder; a pressure generator, for generating a differential pressure between the first and second fluid reservoir; a variable flow resistance, located between the fluid reservoirs and the bladder, and a controller, arranged to control the variable flow resistance, and to determine the blood pressure inside the body part.

Abstract: Disclosed herein are devices, systems, and methods for accurately tracking the amount of flushing liquid delivered to a patient. The disclosed systems monitor the usage of flushing liquid during an operation using a flow sensor or flow probe. The disclosed systems use a flow sensor to measure the flow rate of liquid through a conduit. Using the flow-related data, a processor can calculate the amount of flushing liquid used. This information can be displayed and/or provided to a fluid monitoring system. With this information, together with the total volume of effusion liquid in a collection container, the disclosed systems can accurately determine how much blood is lost from the patient.

Abstract: Disclosed is a finger cuff that is attachable to a patient's finger to be used in measuring the patient's blood pressure by a blood pressure measurement system utilizing a volume clamp method. The finger cuff comprises a wrappable portion that wraps around a patient's finger. The wrappable portion includes a bladder and a light emitting diode (LED) and photodiode (PD) pair. The finger cuff further comprises a plurality of tubules mountable on an exterior of the wrappable portion. The tubules are inflatable to provide pressure to the wrappable portion of the finger cuff to the patient's finger and to provide tightness of the wrappable portion of the finger cuff to the patient's finger. When the finger cuff is placed around the patient's finger, the bladder and the LED-PD pair aid in measuring the patient's blood pressure by the blood pressure measurement system utilizing the volume clamp method.

Abstract: Disclosed is a finger cuff attachable to a patient's finger to be used in measuring the patient's blood pressure by a blood pressure measurement system utilizing the volume clamp method. The finger cuff may include a light emitting diode (LED) and photodiode to form an LED-PD pair to perform measurements of a plethysmogram signal to aid in measuring the patient's blood pressure; and a bladder. The bladder includes a bottom portion that abuts only the bottom portion of the patient's finger to apply concentrated pressure only on the bottom of the patient's finger near both of the patient's two arteries, wherein, when the finger cuff is placed around the patient's finger, the bottom portion bladder and LED-PD pair aid in measuring the patient's blood pressure by the blood pressure measurement system.

Abstract: Disclosed is a finger cuff assembly that is attachable to a patient's finger to be used in measuring the patient's blood pressure by a blood pressure measurement system. The finger cuff assembly includes a plethysmograph. The plethysmograph includes a light emitting diode (LED)—photodiode (PD) pair that aids in measuring the patient's blood pressure by the blood pressure measurement system. The finger cuff assembly further includes an outer ring and a bladder. The bladder is contained within the outer ring and includes an inflatable inner portion and a finger cavity. The patient's finger with the plethysmograph surrounding the patient's finger may be received and surrounded within the finger cavity of the bladder.

Abstract: Disclosed is a finger cuff that is attachable to a patient's finger to be used in measuring the patient's blood pressure by a blood pressure measurement system utilizing a volume clamp method. The finger cuff comprises a bladder configured to exert pressure on the patient's finger. The finger cuff further comprises a plurality of light emitting diodes (LEDs) and a plurality of photodiodes (PDs) that respectively align with one another to form a plurality of LED-PD pairs. When the finger cuff is placed around the patient's finger, the bladder and the plurality of LED-PD pairs aid in measuring the patient's blood pressure by the blood pressure measurement system utilizing the volume clamp method.

Abstract: Disclosed is a finger cuff that is attachable to a patient's finger to be used in measuring the patient's blood pressure by a blood pressure measurement system. The finger cuff includes a plethysmograph that is detachable from the finger cuff. The plethysmograph includes a light emitting diode (LED)-photodiode (PD) pair that aids in measuring the patient's blood pressure by the blood pressure measurement system. The finger cuff further includes a bladder mountable within the finger cuff. The bladder includes a plethysmograph portion such that the plethysmograph is effectively positioned against the plethysmograph portion of the bladder when the finger cuff is attached to the patient's finger.

Abstract: Disclosed is a finger cuff that is attachable to a patient's finger to be used in measuring the patient's blood pressure. The finger cuff includes a first side and a second side. The first side is removably attached to the second side to wrap the finger cuff around the patient's finger. The finger cuff further includes a signal source and signal detector pair and a bladder. The bladder includes a pair of openings and is mountable within the finger cuff such that the pair of openings surround the signal source and signal detector pair, respectively. The patient's finger surrounded in the finger cuff abuts against the bladder such that the bladder and the signal source and signal detector pair are used in measuring the patient's blood pressure. Further, the bladder and signal source and signal detector pair are coupled to a cable through a connector assembly. The cable provides pneumatic pressure to the bladder and receives electrical signals from the signal source and signal detector pair.

Abstract: Disclosed is finger cuff that is connectable to a patient's finger to be used in measuring the patient's blood pressure by a blood pressure measurement system. The finger cuff may comprise a fixed shell and a bladder. The fixed shell may have a finger cavity, in which the finger cavity of the fixed shell may be placed around a patient's finger to surround a large portion of the patient's finger including the middle knuckle to reduce finger movement, and in particular, to reduce relative movement between the middle phalanx and the proximal phalanx. Further, the fixed shell includes a support member that extends away from the finger cavity to abut against the underside of the patient's hand to reduce bending of the finger relative to the hand.

Abstract: Disclosed is a method to measure a patient's blood pressure by a blood pressure measurement system utilizing a finger cuff, in which the finger cuff includes a light emitting diode (LED)—photodiode (PD) pair and a bladder. The method comprises: placing the finger cuff around the patient's finger such that the bladder and the LED-PD pair aid in measuring the patient's blood pressure by the blood pressure measurement system; and applying heat generated by a heating element to the finger of the patient to increase the temperature of the finger, wherein the heating element generates heat at a predetermined temperature. Also, in some embodiments, the heating element also includes warming the hand and the wrist.

Abstract: The present disclosure provides systems that include a flow probe that senses fluid flow or mass flow of fluid delivery to a patient. Based at least in part on the sensed fluid or mass flow, the flow probe provides flow-related data (e.g., volume or mass flow rate) that the system uses to derive a volume of fluid being delivered. The fluid can be delivered from an IV bag, another in-line port, or a combination of the two. The disclosed systems provide fluid volume and/or fluid rate for display to a clinician and an informative understanding of what volume of fluid/mass a patient has received.

Abstract: Disclosed is finger cuff that is connectable to a patient's finger to aid in measuring the patient's blood pressure. The finger cuff may comprise: a shell, a bladder, and a clamping mechanism. The shell may have a finger cavity. The finger cavity of the shell may be placed under a patient's finger to receive the patient's finger. Further, the finger cavity may include a light emitting diode (LED)-photodiode (PD) pair. The bladder may include a pair of openings and the bladder may be mountable within the finger cavity such that the pair of openings surround the LED-PD pair, respectively. The clamping mechanism may be used to suitably clamp the patient's finger received in the finger cavity of the shell against the bladder mounted within the finger cavity of the shell.

Abstract: Disclosed is a finger cuff apparatus connectable to a patient's finger to be used in blood pressure measurement using volume clamping. The finger cuff apparatus may comprise a first bladder and a second bladder or multiple bladders.