公开(公告)号：US4619269A

公开(公告)日：1986-10-28

申请号：US599080

申请日：1984-04-11

Applicant: Christopher A. Cutler ,  William D. Wallace

Inventor： Christopher A. Cutler ,  William D. Wallace

IPC: A61B5/083 ,  G01N33/497 ,  A61B5/08 ,  A61M16/00

CPC classification number: A61B5/083 ,  G01N33/497

Abstract: An apparatus and method for monitoring respiratory gases in newborn infants. The apparatus includes a first fluid flow circuit from which an oxygen enriched gas is used to ventilate the patient, and a second fluid flow circuit connected in parallel to the first circuit. The second fluid flow circuit is used to isolate respiratory gases expired by the infant so that the respiratory gases can be accurately monitored for concentrations of the carbon dioxide and oxygen, which are then used to calculate metabolic rate and other clinical data used in properly caring for the patient. The apparatus also includes electronic processing capability for quickly determining the needed data and for outputting it in a format which is convenient and readily available for use by doctors, nurses or technicians.

Abstract translation: 一种用于监测新生儿呼吸气体的装置和方法。 该装置包括第一流体流动回路，使用富氧气体使患者通气，以及与第一回路并联连接的第二流体流动回路。 第二流体流动回路用于隔离婴儿呼出的呼吸气体，以便对二氧化碳和氧气的浓度进行精确的监测，从而可以对呼吸气体进行准确的监测，然后将其用于计算代谢率和适当照顾的其他临床数据 患者。 该装置还包括电子处理能力，用于快速确定所需数据并以便于和方便地供医生，护士或技术人员使用的格式输出。

公开(公告)号：US4610256A

公开(公告)日：1986-09-09

申请号：US654373

申请日：1984-09-25

Applicant: William D. Wallace

Inventor： William D. Wallace

IPC: A61B5/0215 ,  G01L9/00 ,  A61B5/02

CPC classification number: G01L19/143 ,  A61B5/0215 ,  G01L19/003 ,  G01L19/0038 ,  G01L19/0084 ,  A61B2562/0247

Abstract: A pressure transducer which includes a novel apparatus and method for calibrating a pressure transducer to a monitor used in connection with an indwelling catheter to monitor a patient's blood pressure. The pressure transducer includes a transducer diaphragm disposed within a housing cavity. A manometer and a syringe are connected so as to be in communication with the transducer cavity. By partially withdrawing the plunger of the syringe, the pressure in the transducer cavity is reduced, thereby establishing a pressure drop equal to that measured by the manometer across the transducer diaphragm, thus facilitating calibration of the pressure measurement system. Inasmuch as the indwelling catheter is isolated from the pressure calibration apparatus, the methods and apparatus of the present invention avoid any risk of introducing air bubbles or microorganisms into the indwelling catheter.

Abstract translation: 一种压力传感器，其包括用于将压力换能器校准到与留置导管结合使用以监测患者的血压的监视器的新型装置和方法。 压力传感器包括设置在壳体腔内的换能器膜片。 压力计和注射器被连接成与换能器腔连通。 通过部分地抽出注射器的柱塞，换能器空腔中的压力减小，从而建立与通过换能器隔膜的压力计所测量的压降相等的压降，从而便于校准压力测量系统。 由于留置导管与压力校准装置隔离，所以本发明的方法和装置避免了将气泡或微生物引入留置导管的风险。