DRUG INTRODUCTION WITH PRESSURE MEASUREMENT OF AND INTERMITTENT FLOW FOR IDENTIFICATION OF FLUID-FILLED ANATOMICAL SPACES AND INJECTION PROVISION THEREIN
KHOKHMAN Mark N. (US),ХОХМАН Марк Н. (US),KHOKHMAN Mark N.,ХОХМАН Марк Н.
申请号：
RU2014147366
公开号：
RU0002638449C2
申请日:
2013.06.11
申请国别(地区):
RU
年份:
2017
代理人:
摘要：
FIELD: medicine.SUBSTANCE: space can take fluid at a pressure less than the pressure of tissues. The device contains a unit of disposable elements. The unit comprises a syringe having a main body for the fluid to be injected into the anatomical space. The syringe comprises a piston configured to move at one end of the main body to dispense fluid from the opposite end of the main body. The assembly includes tubes that are integrally connected to the opposite end of the main body. The assembly includes a needle connected to the tubes and having a tip adapted to be inserted into the patient and moved through tissues surrounding the anatomical space to search for this anatomical space. The unit includes a built-in electronic pressure transducer between the opposite end of the main body and one end of the tubes, to generate a signal corresponding to the instantaneous pressure at the tip of the needle. The apparatus comprises a drive unit connected to the syringe and electronic pressure transducer. The unit contains a control device with a computer. The unit comprises a memory to store the first selected pressure (P1) corresponding to fluid injection into the anatomical space. The unit includes an engine connected to and controlled by the computer. The unit comprises a syringe valve connected to the engine with a syringe to move the piston into and out of the main body for injection and aspiration of the fluid from the anatomical space. The computer is programmed to control the engine to move the piston to provide a discontinuous flow of fluid to the patient until the first selected pressure (P1) is detected by the electronic pressure transducer. The engine stops working to stop the flow of additional fluid to the patient until the instantaneous pressure at the tip of the needle decreases to a value less than the first selected pressure. The program resumes engine operation to resume the flow of fluid to the patient while the needle is moving in the patient's tissues. The
