These advantages will provide you the peace of mind and the leading edge you need when sourcing a sensitive device such as Disposable Pressure Transducer. In accordance with well-known principles, such a stretching of the wire causes the electrical resistance of the wire to increase. In order to provide additional shielding from light, one side of substrate 70 may be coated, at least in part, by some type of opaque coating. 5, a portion of gel 100 extends into the space between housing 12 and substrate 70 so as to effectively form a fluid-tight seal 102 which seals housing 12 and substrate 70 and electrically isolates substrate 70 and its associated circuitry from the saline solution carried by tube 20. TRANSPAC® 4 Disposable Pressure Transducer Monitoring Kit with SAFESET™ Blood Conservation System (Luer Sample Port) Instructions for Use CAUTION: Care must be taken to keep electrical connections on the cable extension dry and fluids from entering the atmospheric vent on the transducer or erratic readings may result. Of course, the expense of manufacturing the prior art transducer devices increases the ultimate cost of the devices; and such increased cost makes it less desirable to dispose of the devices after only a single use. In addition, cable 14 should be shielded so as to minimize electromagnetic interference with the signals being transmitted along cable 14. Using current semiconductor technology, it is now possible to provide the several required resistive elements on the surface of a single, bonded silicon chip. A Multicenter Evaluation of a Compact, Sterile, Single-Use Pressure Transducer for Central Venous Catheter Placement. Transpac IV Disposable Pressure Transducers provide clinicians with real-time access to their patient's hemodynamic and cardiovascular status in surgical and intensive care settings. Anesthesia & Analgesia: May 2013, Volume 116, Issue 5; Kumar A, Roberts D, Wood KE, et al. Significantly, since such silicon chips are readily adapted to being mass produced, the total cost of pressure transducers can be reduced substantially. Such vent channel communicates both with the interior of housing 12 through hole 46 and with the atmosphere through a suitable vent port located somewhere along cable 14, such as, for example, in a connector of cable 14. These and other objects and features of the present invention will become more fully apparent from the following description and appended claims, taken in conjunction with the accompanying drawings. The substrate, together with the above-mentioned components, is secured within a housing. Benefits of Transpac IV. It will be appreciated that such opaque coating reduces the likelihood that light will penetrate substrate 70 and contact pressure transducer 80. Elcam medical also provides Disposable Pressure Transducers that have no stopcock or flush device. Consequently, these transducers have generally been provided in the form of a reusable instrument which can be connected to a fluid-filled catheter by means of a disposable dome.Although such reusable pressure transducers can produce acceptable results, the use of such transducers has a number of significant disadvantages. After the indwelling catheter is positioned within a patient as described above, the other end of the catheter is connected to pressure transducer. The generated electrical signals are then transmitted along cable 14 to a monitor (not shown) such that the pressure data may be appropriately displayed and/or recorded. To this end, as discussed further below, the interior of housing 12 is continuously vented to atmospheric pressure by means of a vent channel in cable 14. Therefore, cap 90 also shields pressure transducer 80 from exposure to light and prevents transient signals from being generated by pressure transducer 80 as the transducer apparatus 10 is exposed to various light sources. This, of course, represents a significant safety risk to the patient, particularly if the patient is already suffering from some serious illness or injury. Enter Quantity: Select Location: Series 450. Standard TruWave pressure monitoring kits are sterile, single-use kits that relay blood pressure information from a pressure monitoring catheter to a patient monitoring system. While a variety of electronic mechanisms have been used to measure the deflection of a diaphragm in pressure transducers, perhaps the most common measuring mechanism which is currently in use comprises a resistive strain gauge, such a mechanism being quite similar to strain gauges that are commonly used in industrial applications. Pressure Transducer. One presently preferred configuration for housing 12 of transducer apparatus 10 is illustrated in FIGS. FIG. TruWave disposable pressure transducers: Accurate and safe pressure monitoring. Global Disposable Pressure Transducer Market Report to 2026 offers industry overview, segmentation by types, application, countries, key manufactures, cost analysis, industrial chain, sourcing strategy, downstream buyers, marketing strategy analysis, distributors/traders, factors affecting market, forecast and other important information for key insight. All of these factors have made the use of reusable pressure transducers somewhat burdensome and inconvenient. Pediatric & flushless transducers. In addition, the silicone gel extends into the space between the housing and the dielectric substrate so as to form a fluid-tight seal, thereby providing electrical isolation of the transducer apparatus from the patient. A medical blood pressure transducer that provides an identifier to a monitor that conveys characteristics of the transducer. A portion of the silicone gel may also be opaque so as to help further shield the semiconductor transducer from exposure to light. Importantly, because of the foregoing procedure, the need to perform a large number of separate delicate assembly steps is eliminated, thereby helping to reduce the overall cost of the apparatus. This invention relates to pressure transducers for medical use and, more particularly, to a novel, disposable pressure transducer apparatus for use in the direct measurement and/or monitoring of human blood pressure. For example, housing 12 may be provided with suitable stakes 44 which may be flattened by means of sonic welding techniques over a portion of substrate 70 after substrate 70 is appropriately positioned within housing 12 between the stakes 44 (see also FIG. For example, medical personnel frequently use various indirect blood pressure measurement techniques, such as measuring a patient's blood pressure by using a pressure cuff and a stethoscope. Accurate and safe pressure monitoring – TruWave disposable pressure transducers may be used independently or combined with VAMP closed blood sampling systems for a single safe, reliable and accurate monitoring solution. The apparatus includes a semiconductor pressure transducer, a temperature compensation circuit, and light shielding structures mounted on a dielectric substrate. For example, if it is desired to monitor arterial blood pressure, the needle may be inserted into the radial artery. A novel disposable pressure transducer apparatus for monitoring human blood pressure. It should be noted, however, that if the cable 14 of transducer apparatus 10 is formed in the manner just described, cable 14 will be relatively expensive (typically on the order of 70¢ to $1.00 per foot). For example, temperature compensation circuit 72 may be provided using appropriate silk-screening techniques. FIG. Additionally, housing 12 could be formed as part of another intravenous device. Then, as the patient's heart thereafter pumps blood, periodic pressure pulses are transmitted through the patient's blood vessels and along the fluid column in the catheter to the pressure transducer. Pressure transducers continuously relay blood pressure information from a pressure monitoring catheter (arterial line, central venous pressure line, or other pressure monitoring products) to the patient's monitoring system. Both the second passageway through the housing and the hole in the substrate are filled with a silicone gel such that pressure pulses may be transmitted through the silicone gel to the pressure transducer. As a result of these developments, therefore, several manufacturers have recently placed disposable pressure transducers on the market. A separate reusable interface cable is used with this system to connect the transducer to a pressure monitor. Connector: Edward, Philips, Abott, BD, Utah, Medex, PVB/SIMMS, USB, Mindray. Then, with the catheter thus in place, the needle may be withdrawn. All changes which come within the meaning and range of equivalency of the claims are to be embraced within their scope. This video reviews the use of a pressure transducer to … It will be readily appreciated that polyvinyl chloride shield 64 and insulator material 66 may be configured in a wide variety of ways so as to form such a space 68. A typical pressure transducer for use in blood pressure monitoring systems comprises a thin diaphragm which is capable of being deflected by the pressure pulses which travel through the above-described fluid column in the catheter. For example, as shown, solder pads 78 are provided on substrate 70, and wires 84 are connected between pressure transducer 80 and solder pads 78. Conductors 60 of cable 14 then enter housing 12 through a hole 46, and conductors 60 are thereafter appropriately connected to solder pads 74. Direct blood pressure monitoring also enables the rapid detection of a change in cardiovascular activity, and this may be of significant importance in emergency situations. In addition, housing 12 has a passageway 28 formed therein which extends from the passageway of coupling tube 20 to the interior of housing 12. If, for example, substrate 70 is approximately 0.040 inches (1.016 mm) thick, channel 76 may be within the range of approximately 0.010 inches (0.254 mm) to 0.020 inches (0.508 mm) deep. 2, substrate 70 is provided with a conventional temperature compensation circuit 72. View specifications, download support documents and discover related products. As mentioned above, a cap 90 is secured to substrate 70 so as to cover pressure transducer 80. A wide variety of disposable pressure transducer options are available to you, such as ce, msds. 5, cap 90 is provided with a vent hole 94 such that pressure transducer 80 is vented to the interior of housing 12. Importantly, this catheter is filled with some type of solution, such as, for example, a sterile saline solution. In the various prior art devices, such temperature compensation circuitry may be located in a number of positions relative to the pressure diaphragm. In addition, a central portion of pressure transducer 80 is etched away (such as, for example, by chemical etching techniques), so as to form a piezoresistive diaphragm 81. Substrate 70 is, in turn, secured within housing 12. For example, housing 12 could be formed as part of an intravenous continuous flush device. Further, it is an object of the present invention to provide a disposable pressure transducer apparatus wherein the electrical circuitry of the apparatus is effectively isolated from the patient, thereby minimizing the likelihood that the patient will receive an electrical shock from the apparatus. means for hydraulically coupling said pressure diaphragm through said second passageway to said first passageway and the fluid-filled catheter communicating with said first passageway. When diagnosing and treating various bodily ailments, medical personnel often find it desirable to measure and/or monitor a patient's blood pressure. 100% in-line testing assuring electrical and leakage conditions. The easy-to-use cable connection is available in multiple standard and custom configurations to meet your clinical needs: Further, care must be taken to insure that the pressure transducer device is electrically isolated from the patient so that an electric shock will not be transmitted through the fluid column in the catheter and back to the patient. • The pressure across a centrifuge can be used as an indication of unit throughput. Substrate 70 may then be provided with an opaque coating, and a temperature compensation circuit 72 is thereafter silk-screened onto substrate 70. Pressure transducer 80 is formed by methods which are well-known in the art so as to include the required piezoresistive pressure diaphragm and measuring circuitry. Elcam’s integrated disposable pressure transducer is unique in its unibody design where all 3 subcomponents are molded as a single piece. As shown, such electrical components are mounted on a dielectric substrate sheet 70. Therefore, those skilled in the art of blood pressure monitoring have attempted to develop pressure transducers which have a high degree of reliability, sensitivity, and accuracy. Further, as illustrated, shell 40 may be provided with a recessed shelf 42, and back plate 50 may be formed so as to fit snugly within recessed shelf 42. This is a mission critical application where your product cannot be allowed to fail. The present transducer is then connected to some type of monitor device near the patient's bedside. In light of the foregoing, it is a primary object of the present invention to provide a disposable pressure transducer apparatus which is accurate, safe and economical. Housing 12 may be configured in any suitable manner. • Each SciPres® pressure sensor is pre-calibrated and has a unique sensor ID making it NIST traceable and suitable for single-use GMP applications. generation, On-chip pressure transducer and temperature compensation circuit therefor, Valve and switch device for measuring pressure of liquids in living objects, Blood pressure amplifier with zero balancing means, <- Previous Patent (Method and apparatus...). Typical indirect techniques may, for example, yield errors as high as ten percent, whereas direct blood pressure measurement and monitoring techniques are generally accurate to within about one percent. When cable 14 is formed in the above-described manner, the vent channel of cable 14 may be readily provided by forming the polyvinyl chloride shield 64 and the insulator material 66 such that a space 68 is provided between insulator 66 and polyvinyl chloride shield 64 along at least a portion of cable 14. Pressure transducer 80 is then mounted directly to substrate 70 such that piezoresistive diaphragm 81 of pressure transducer 80 is positioned directly over hole 75 in substrate 70. For example, housing 12 may be formed of a suitable plastic material by conventional injection molding techniques. A disposable blood pressure transducer system for use with a catheter with or without a catheter flush/flow valve. A clear gel 100a may thereafter be placed in passageway 28 of housing 12. First, the output of semiconductor pressure transducers is typically temperature-dependent. In order to increase the sensitivity and accuracy of the pressure measurement, it is common to connect four such resistive wires to a single pressure diaphragm. 1 through 5, is not intended to limit the scope of the invention, as claimed, but it is merely representative of one presently preferred embodiment of the invention. First, the the prior art disposable pressure transducers are not entirely effective in shielding the semiconductor transducer from exposure to light. In addition, a movement of the prior art devices will occasionally subject the sensitive pressure measuring circuitry to mechanical stress, thereby also producing transient fluctuations in the pressure readings. Alternatively, coupling tube 20 may be connected so as to be outside of the direct fluid flow path, with one end 22 or 26 of coupling tube 20 being blocked as with a stopcock. Unfortunately, the above-described pressure transducers have typically been quite expensive to manufacture. Product Availability ...All In-Stock Products Shipped Within 24 Hours! Advantageously, in order to facilitate removing any air bubbles which might collect in coupling tube 20 of housing 12, housing 12 may be formed so as to be at least partially transparent. Wires 84 are thereafter connected to solder pads 78 and to pressure transducer 80, and cap 90 is secured to substrate 70 by means of adhesive 92. As further depicted in FIG. As shown, coupling tube 20 of housing 12 is provided with suitable connectors for connecting coupling tube 20 to an indwelling, fluid-filled catheter (not shown). 4 is a cross-sectional view taken along lines 4--4 of FIG. Listed manufacturers, suppliers, dealers & exporters are offering best deals for disposable pressure transducer. For example, one prior art device provides the temperature compensation circuitry as part of a connector in a cable which is used to connect the transducer device to an external monitor. Compass CT Disposable Pressure Transducer product photo Compass CT Port Disposable Pressure Transducer Product Photo The Compass CT/Compass CT Port is a disposable pressure transducer with integrated digital display intended for direct measurement and monitoring of physiological pressure, including during the infusion of fluids and therapeutic and diagnostic agents. As other pressure transducers, Elcam’s DIPT comprises 3 sub-components: a pressure sensor, a flush device and a stopcock. means circuit for temperature compensation provided on said first side of said substrate, said circuit means being electrically connected to said pressure diaphragm; means for electrically connecting said circuit means for temperature compensation and said pressure transducer to said monitor device, said connecting means being attached to said circuit means and said pressure transducer on said first side of the substrate; means for housing said substrate, said housing means comprising a first passageway communicating with said fluid-filled catheter, a second passageway providing fluid communication between said pressure diaphragm and said first passageway, and means for mounting said substrate in said housing means such that said second side of the substrate faces toward said second passageway and said first side of the substrate faces away from said second passageway; and. Once the above-described components are assembled onto substrate 70, an opaque gel 100b may be placed in hole 75 of substrate 70. Get contact details & address of companies manufacturing and supplying Disposable Pressure Transducer, Disposable Blood Pressure Transducer across India. Thus, the catheter may be threaded through the needle and along the blood vessel until the tip of the catheter, which is located inside the blood vessel, is positioned at the particular point within the body at which it is desired to make the blood pressure measurement. 2. Notably, pyrex has approximately the same coefficient of thermal expansion as silicon. Cable 14 is connected to housing 12 in some suitable manner, such as, for example, by means of a connecting sheath 62. Since magnet wires are typically already insulated, they do not require a separate insulation coating. Adhesive 92 may, for example, comprise an epoxy resin adhesive. Typical monitor devices include cathode ray tube display devices, digital display and/or recording devices, printers and plotters. This integration assures not only a very high degree of robustness and reliability , but also ease of use and space saving that are much needed in Intensive Care Units and Operating Rooms. . a gel substance which substantially fills said second passageway formed through said housing means, said gel substance being in contact with the other side of said pressure diaphragm and said gel substance also being interposed between said substrate and a portion of said housing means adjacent said second passageway so as to form a fluid-tight seal between said substrate and said housing means. We sincerely hope to establish business relationships and cooperate with you. In order to compensate for the temperature dependence of semiconductor pressure transducers, the prior art devices have typically included some type of temperature compensation circuitry. Further, housing 12 may be formed of a wide variety of substances. Sensors such as the 1620 and 1630 series are used to improve the accuracy and provide real time results of blood pressure changes. Some efforts have been made to solve each of these problems in the prior art semiconductor transducer devices, and these efforts are briefly discussed below. First, since the transducer is to be used by a number of patients, it must be sterilized after each use; and this sterilization procedure can be both time consuming and expensive. How are disposable pressure sensors used in invasive blood pressure monitoring applications? Pressure transducer 80 measures such pressure pulses, and electrical signals representing such pressure pulses are transmitted along cable 14 to a monitor. 2, the various electrical components of transducer apparatus 10 are secured within housing 12. The pressure transducer is also covered by an opaque cap which prevents light from contacting the transducer. In such case, cable 14 could be formed as a short (e.g., one foot) length of cable having a connector on the end thereof. The apparatus comprises a two-sided dielectric substrate sheet which has a hole therethrough. The substrate is secured within a housing adapted to follow the pressure pulses present in a fluid filled catheter to be communicated to the pressure transducer by way of a gel placed in a hole provided in the substrate. It will be readily appreciated that housing 12 of transducer apparatus 10 could also have a wide variety of different shapes. For example, as depicted in FIG. The prior art devices have also attempted to compensate for the light sensitivity of semiconductors in a number of ways. Such insulators may, for example, comprise part of a housing within which the electronic circuitry is contained. As a result, the prior art devices sometimes produce incorrect transient pressure readings which may interfere with the subsequent analysis and use of the pressure data. Optionally, coupling tube 20 may be connected so as to be directly in-line with a continuous flush device, such that fluid flows through the coupling tube 20 and toward the patient. One of the most widely used techniques for direct blood pressure measurement and monitoring is called catheterization. Significantly, the accuracy and reliability of the pressure transducer set an upper limit to the quality of the blood pressure data which can be obtained. Gel 100 may then be oven-cured to the appropriate consistency using conventional oven-curing techniques. Elcam's disposable integrated pressure transducer is the most common OEM transducer, available in a variety of configurations according to the customers' needs. The pressure transducer generates electrical signals representing the pressure pulses, and such signals are then amplified and displayed by the monitor device. ". The pressure transducer is mounted to the substrate such that it is free to thermally expand and contract without being subjected to mechanical stress. 5, diaphragm 81 of pressure transducer 80 is electrically connected to the circuitry on substrate 70 in some suitable manner. Thus, for example, pressure transducer 80 is secured with an adhesive material which is flexible enough to permit pressure transducer 80 to thermally expand and contract without significant interference. FIG. Disposable pressure transducers are used to obtain a precise and continuous measurement of physiological pressures. Enter Model No. When a patient no longer requires blood pressure monitoring, transducer apparatus 10 may be disconnected and discarded. As also depicted in FIG. What is claimed and desired to be secured by Substrate 70 may then be secured within upper shell 40 of housing 12 by means of stakes 44. One of the only disposable pressure transducers assembled in a highly automated assembly process. 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