摘要:
A vascular access device may include a body, a single-disk septum in communication with the body, and a rigid member supporting the septum. A method of manufacturing a vascular access device may include providing a body, providing a single-disk septum in communication with the body, and supporting the septum with a rigid member.
摘要:
A system for controlling fluid flow in a catheter assembly is disclosed herein. An intravenous catheter assembly has a catheter adapter and a needle hub, and the catheter adapter has an inner lumen. A septum is disposed within a portion of the inner lumen, and a slit is formed through the septum. A Parylene coating is disposed within the slit of the septum, the Parylene coating has a thickness of between approximately 0.00005 to 0.0005 millimeters. An introducer needle has a first end coupled to the needle hub and the second end extending through the inner lumen of the catheter adapter. A middle portion of the introducer needle is positioned within a portion of the septum.
摘要:
A vascular access device for communicating with the vascular system of a patient may include a status indicator. The status indicator may detect and signal that a period of time has elapsed in relation to the use of the vascular access device.
摘要:
A vascular entry confirmation mechanism that produces a signal when a cannula and/or catheter is properly placed in a blood vessel is described herein. Generally, the confirmation mechanism comprises a cannula (such as a venapuncture needle), a signaling element, a power source, electrical components to electrically connect the signaling element to the power source, and a switching mechanism, which is configured to close a circuit between the signaling element and power source when a fluid (e.g., blood), flows into the cannula. Accordingly, the confirmation mechanism is configured to produce a signal (e.g., an audible or a visual signal) when a patient's vasculature is punctured.
摘要:
A flushable catheter assembly having features to enable selective activation of fluid flow through the catheter assembly is disclosed herein. A septum is placed within the catheter adapter of the catheter assembly and includes a pathway that is closed prior to being biased open via a septum activator also positioned within the catheter adapter. A plurality of air vent channels is interposed between the septum and the inner surface of the catheter adapter to permit “flashback” of blood during insertion of the catheter into a patient. The septum activator is advanced through the pathway of the septum as a coupler is attached to a proximal opening of the catheter adapter.
摘要:
A circuitry for counting drips and monitoring a rate of infusion is incorporated into an IV administration set. The circuitry includes a pair of leads that are positioned in the pathway of fluid droplets, such that each droplet simultaneously contacts both leads. As such, the leads act as a virtual switch that is closed by the presence of a droplet. This event is then displayed on a drip signaling device to aid a user in adjusting the infusion rate of the IV administration set.
摘要:
A medical device includes a vascular access device with an access port having a septum and a slit. The slit is formed on the inner surface of the body of the septum where the access port receives an access device that is separate from the vascular access device through the slit of the septum. A pivoting member in communication with the access port pivots when the port is accessed by an access device. The medical device may be used to control the volume displacement of a chamber within the medical device by decreasing the volume of the chamber by inserting a substance having a mass into the chamber, pivoting a structure associated with the chamber, and increasing the volume of the chamber simultaneously and commensurately with the mass of the substance inserted into the chamber.
摘要:
A flushable catheter assembly having features to enable selective activation of fluid flow through the catheter assembly is disclosed herein. A septum is placed within the catheter adapter of the catheter assembly and includes a pathway that is closed prior to being biased open via a septum activator also positioned within the catheter adapter. A plurality of air vent channels is interposed between the septum and the inner surface of the catheter adapter to permit “flashback” of blood during insertion of the catheter into a patient. The septum activator is advanced through the pathway of the septum as a coupler is attached to a proximal opening of the catheter adapter.
摘要:
A catheter assembly is provided having a conical diffuser tip for use in rapid infusion procedures. The conical diffuser tip provides a flared opening whereby the velocity of an infusant is decreased as the infusant travels through the catheter tip and exits into the vascular system of a patient. This decrease in velocity proportionately reduces the backpressure and/or recoil force of the catheter assembly thereby permitting the use of higher infusion rates. The catheter tip is introduced into the vasculature of a patient via a splittable introducer needle.
摘要:
An apparatus to control blood flow through an intravenous catheter in accordance with the present invention may include an intravenous catheter adapter and a blood control valve. The blood control valve may be retained within a hollow interior region of the intravenous catheter adapter, and may include a resilient outer shell and an inner valve portion extending inwardly therefrom. The inner valve portion may include a slit configured to open, coin-purse style, upon radially compressing the resilient outer shell. In some embodiments, a compression feature may be integrated into the intravenous catheter adapter to radially compress the resilient outer shell. A Luer device, for example, may be inserted into the intravenous catheter adapter to translate the blood control valve to a position substantially corresponding to the compression feature, thereby actuating the compression feature to open the slit.