Search

CN-121313997-B - Concentration adjusting anesthesia device for anesthesia department

CN121313997BCN 121313997 BCN121313997 BCN 121313997BCN-121313997-B

Abstract

The invention discloses a concentration adjusting anesthesia device for anesthesia department, which comprises a base, wherein a needle cylinder is movably arranged above the base, one end of the needle cylinder is provided with a static mixing shell, the inside of the static mixing shell is provided with a bidirectional pumping shell, the inner wall of the bidirectional pumping shell is slidably provided with a piston, one end of the bidirectional pumping shell is in through connection with a first unidirectional liquid flow channel and a second unidirectional liquid flow channel, the other end of the bidirectional pumping shell is in through connection with a third unidirectional liquid flow channel and a fourth unidirectional liquid flow channel, the first unidirectional liquid flow channel is in through connection with the fourth unidirectional liquid flow channel, the second unidirectional liquid flow channel is in through connection with the third unidirectional liquid flow channel, venturi tubes are arranged on the first unidirectional liquid flow channel and the fourth unidirectional liquid flow channel, and the venturi tubes on the first unidirectional liquid flow channel are in through connection with a lidocaine container.

Inventors

  • WANG QI

Assignees

  • 常德市第一人民医院

Dates

Publication Date
20260512
Application Date
20251121

Claims (5)

  1. 1. The concentration adjusting anesthesia device for the anesthesia department comprises a base (1) and is characterized in that a needle cylinder (2) is movably arranged above the base (1), a static mixing shell (5) is arranged at one end of the needle cylinder (2), a bidirectional pumping shell (54) is arranged in the static mixing shell (5), a piston (541) is slidably arranged on the inner wall of the bidirectional pumping shell (54), one end of the bidirectional pumping shell (54) is connected with a first unidirectional liquid flow channel (561) and a second unidirectional liquid flow channel (562) in a penetrating manner, the other end of the bidirectional pumping shell (54) is connected with a third unidirectional liquid flow channel (563) and a fourth unidirectional liquid flow channel (564) in a penetrating manner, and the second unidirectional liquid flow channel (562) is connected with the third unidirectional liquid flow channel (563) in a penetrating manner; The two unidirectional liquid flow channels (562) and the three unidirectional liquid flow channels (563) are respectively provided with a venturi tube (57), the venturi tube (57) positioned on the three unidirectional liquid flow channels (563) is in through connection with a lidocaine container (51), the venturi tube (57) positioned on the two unidirectional liquid flow channels (562) is in through connection with a glucose container (52), and an anesthetic container (53) is in through connection between the first unidirectional liquid flow channel (561) and the fourth unidirectional liquid flow channel (564); The automatic feeding device is characterized in that a large flange (22) is fixedly arranged on the outer wall of the needle cylinder (2), a screw rod motor (231) is fixedly arranged on one side of the large flange (22), a screw rod (23) is connected to the output end of the screw rod motor (231), a guide rail (24) is fixedly arranged on one side of the large flange (22), a small flange (25) is slidably arranged on the outer wall of the guide rail (24), the small flange (25) is movably connected with the screw rod (23) in a threaded mode, a push rod (21) is arranged on one side of the small flange (25), a liquid pushing block (27) is connected to one end of the push rod (21), and the liquid pushing block (27) is in sliding contact with the inner wall of the needle cylinder (2); The flow channel is formed in the push rod (21), one end of the flow channel extends to the side wall of the liquid pushing block (27), a one-way valve (271) is arranged in the flow channel, a flexible connecting pipe (26) is connected to the other end of the flow channel in a penetrating mode, and one end of the flexible connecting pipe (26) is connected to the second unidirectional liquid flow channel (562) and the third unidirectional liquid flow channel (563) in a penetrating mode.
  2. 2. The anesthesia apparatus for anesthesia department concentration adjustment according to claim 1, wherein one side of the piston (541) is connected with a control rod (542), a groove is formed in one side of the bi-directional pumping housing (54), one end of the control rod (542) extends outwards from the groove, two ends of the bi-directional pumping housing (54) are correspondingly provided with a liquid flowmeter (55), the outer wall of the bi-directional pumping housing (54) is fixedly provided with a protruding block (546), one end of the control rod (542) is connected with a rack (547), the inside of the static mixing housing (5) is fixedly provided with a gear motor (5481), the output end of the gear motor (5481) is connected with a gear (548), the gear (548) is meshed with the rack (547), and a reset spring (549) is connected between the protruding block (546) and the control rod (542).
  3. 3. The anesthesia department concentration adjusting device according to claim 2, wherein the outer walls of the two ends of the two-way pumping shell (54) are connected with U-shaped pipelines (545) in a penetrating mode, a piston cylinder (544) is installed on the U-shaped pipelines (545), an inflation gasket (543) is connected between the inner wall of the two-way pumping shell (54) and the outer wall of the piston (541) in a clamping mode, and the inflation gasket (543) is connected with one end of the U-shaped pipelines (545) in a penetrating mode.
  4. 4. The anesthesia department concentration adjusting device according to claim 3, wherein one end of the needle cylinder (2) is connected with a bubble removing device (3), the bubble removing device (3) comprises a spherical shell, a water delivery microporous membrane (33) is arranged in the spherical shell, the water delivery microporous membrane (33) is spherical, a liquid inlet pipe (34) and a liquid discharge pipe (36) are connected through the side wall of the water delivery microporous membrane (33), a gas discharge pipe (31) is arranged at the top of the spherical shell, one end of the gas discharge pipe (31) is connected with a Roots air pump (32), and a plurality of bubble blocking plates (35) are rotatably arranged at the port of the liquid discharge pipe (36).
  5. 5. The anesthesia apparatus for anesthesia department concentration adjustment according to claim 4, wherein a vibration motor (28) is installed above the base (1), an output end of the vibration motor (28) is in contact with the bottom of the needle cylinder (2), and the needle cylinder (2) is longitudinally and slidably connected with the base (1).

Description

Concentration adjusting anesthesia device for anesthesia department Technical Field The invention belongs to the technical field of anesthesia, and particularly relates to a concentration adjusting anesthesia device for anesthesia department. Background In general anesthesia, intravenous anesthetic such as propofol injection emulsion is widely used for induction and maintenance. Intravenous route relies on injection/infusion devices to deliver a drug solution into a patient at a lower flow rate, over a longer period of time, and to combine with an auxiliary solution of lidocaine, glucose, or analgesic at a proximal end as needed, as compared to inhalation anesthesia. The device ensures the safety of drug administration and simultaneously needs to consider the requirements of the physical and chemical characteristics of the liquid medicine and clinical scenes on continuity, controllability and reliability. After induction of bolus injection of fast-metabolizing anesthetic such as propofol, blood concentration is rapidly distributed from peak to tissue and is metabolically cleared, and the effective concentration at the site of action falls back within minutes. Continuous replenishment is required, otherwise the patient wakes up or becomes shallower. In the initial stage of induction or vein stimulation sensitivity stage, a small amount of lidocaine is combined with a main tingling agent in a short time, the stimulation caused by local flow velocity shearing concentration peak is reduced in engineering, in the maintenance stage, the main tingling agent and glucose are taken as main lines, a relatively stable carrier liquid permeation environment is realized, and the reciprocating and fine adjustment between two pumping modes are needed at different operation nodes. In anesthetic fluid infusion, it is common practice to provide two independent fluid supply paths which are respectively directed downstream through respective metering pumps and switching valve sets. The control system triggers the valve to change direction or the two pumps to start and stop according to the time sequence when the two paths need to be switched. In the switching-off-switching-on transition period, the confluence port is easy to generate transient zero flow or instant overshoot caused by upstream pressure difference and pipeline compliance release, and failure modes such as asynchronism, clamping stagnation, hysteresis and the like are caused by the mismatch of a frequent start-stop controller, a drive and a valve element, so that the practicability is poor. This phenomenon is a problem to be solved by those skilled in the art. Disclosure of Invention The invention aims to solve the problems in the background technology by aiming at the concentration adjusting anesthesia device of the prior material collecting device in anesthesia department. In order to solve the technical problems, the invention provides the technical scheme that the concentration adjusting anesthesia device for the anesthesia department comprises a base, a needle cylinder is movably arranged above the base, a static mixing shell is arranged at one end of the needle cylinder, a bidirectional pumping shell is arranged in the static mixing shell, a piston is slidably arranged on the inner wall of the bidirectional pumping shell, one end of the bidirectional pumping shell is connected with a first unidirectional liquid flow channel and a second unidirectional liquid flow channel in a penetrating manner, the other end of the bidirectional pumping shell is connected with a third unidirectional liquid flow channel and a fourth unidirectional liquid flow channel in a penetrating manner, the first unidirectional liquid flow channel is connected with the fourth unidirectional liquid flow channel in a penetrating manner, and the second unidirectional liquid flow channel is connected with the third unidirectional liquid flow channel in a penetrating manner. The invention further discloses that the venturi tubes are arranged on the second unidirectional liquid flow channel and the third unidirectional liquid flow channel, the venturi tube arranged on the third unidirectional liquid flow channel is in through connection with a lidocaine container, the venturi tube arranged on the second unidirectional liquid flow channel is in through connection with a glucose container, and an anesthetic container is in through connection between the first unidirectional liquid flow channel and the fourth unidirectional liquid flow channel. According to the invention, one side of the piston is connected with a control rod, one side of the bidirectional pumping shell is provided with a groove, one end of the control rod extends outwards from the groove, two ends of the bidirectional pumping shell are correspondingly provided with a liquid flowmeter, the outer wall of the bidirectional pumping shell is fixedly provided with a convex block, one end of the control rod is connected with a rack, th