CN-121971736-A - Automatic intraoperative flushing device and intraoperative flushing temperature control method

CN121971736ACN 121971736 ACN121971736 ACN 121971736ACN-121971736-A

Abstract

The invention relates to the technical field of medical equipment, and provides an intraoperative automatic flushing water device and an intraoperative flushing water temperature control method, wherein the device comprises a heating box and a normal temperature box which are arranged at intervals; the system comprises a heating box, a heating module, a first sterile liquid bag, a second sterile liquid bag, a mixing pipeline assembly, a water gun and a disposable flushing pipeline, wherein the first sterile liquid bag is arranged in the heating box, the second sterile liquid bag is arranged in the normal temperature box, the heating module is used for heating the first sterile liquid bag in the heating box, the first sterile liquid bag and the second sterile liquid bag are respectively sucked by the first sterile liquid pump and the second sterile liquid pump through pipelines, the mixing pipeline assembly is connected with the first sterile liquid pump and the second sterile liquid pump, the heated sterile liquid sucked by the water pumps and the normal temperature sterile liquid are mixed, the disposable flushing pipeline is detachably connected with a water outlet of the mixing pipeline assembly, the sterile liquid mixed in the mixing pipeline assembly is conveyed to the water gun, and the water gun is used for flushing during operation. The invention adopts the principle of double pump proportion mixing temperature control, breaks through the thermal inertia limitation of the traditional direct heating mode, and realizes the accurate, rapid and dynamic adjustment of the temperature and the flow rate of the flushing liquid.

Inventors

NIU XINYING
CAO MENGRU
GUAN LEI
WANG XUE
WANG LUJIE

Assignees

首都医科大学附属北京佑安医院

Dates

Publication Date: 20260505
Application Date: 20260403

Claims (8)

1. The intraoperative automatic flushing device is characterized by comprising a main machine shell, a heating box, a normal temperature box, a first sterile liquid bag, a second sterile liquid bag, a first water pump, a second water pump, a heating module, a mixing pipeline assembly and a disposable flushing pipeline; The heating box and the normal temperature box are arranged at the top of the inner side of the host shell at intervals; the first sterile liquid bag is detachably arranged in the heating box, and the second sterile liquid bag is detachably arranged in the normal temperature box; The heating module is arranged on the heating box and used for heating the first sterile liquid bag in the heating box; the first water suction pump and the second water suction pump are respectively connected with the outlet of the first sterile liquid bag and the outlet of the second sterile liquid bag through pipelines, and the first water suction pump and the second water suction pump respectively suck the sterile liquid in the first sterile liquid bag and the second sterile liquid bag according to a proportion; the mixing pipeline assembly is connected with the first water pump and the second water pump, and mixes the heated sterile liquid pumped by the first water pump and the second water pump with the normal-temperature sterile liquid; The disposable flushing pipeline is detachably connected with the water outlet interface of the mixing pipeline assembly, sterile liquid mixed in the mixing pipeline assembly is conveyed to the water gun, and the sterile liquid is flushed in an operation through the water gun.
2. The intraoperative automatic flushing device of claim 1, further comprising a first temperature sensor disposed at an outlet port of the mixing line assembly connected to the disposable flushing line for detecting a temperature of the sterile fluid discharged through the mixing line assembly.
3. The intraoperative automatic flushing device of claim 2, further comprising a flow sensor disposed at a water outlet port of the mixing line assembly connected to the disposable flushing line for detecting a flow rate of the sterile fluid discharged through the mixing line assembly.
4. The intra-operative automatic flushing device of claim 3, wherein a second temperature sensor is provided on the first sterile fluid bag, the second temperature sensor detecting a temperature of the sterile fluid discharged from the first sterile fluid bag.
5. The intraoperative automatic flushing device of claim 4, further comprising a control unit and a human-computer interaction interface; the human-computer interaction interface is arranged on the outer wall of the host shell, and the control unit is respectively and electrically connected with the human-computer interaction interface and each sensor; the control unit receives detection signals fed back by the first temperature sensor, the flow sensor and the second temperature sensor, and the rotation speeds of the first water pump and the second water pump are dynamically adjusted according to the detection signals and target temperatures and target flow set through a man-machine interaction interface.
6. The intraoperative automatic flushing device of claim 1, wherein the mixing tube assembly comprises a first tube, a second tube, a mixing chamber, a bubble trap device and the outlet port; one end of the first pipeline is connected with the first water suction pump, and the other end of the first pipeline is connected with the mixing cavity; one end of the second pipeline is connected with the second water suction pump, and the other end of the second pipeline is connected with the mixing cavity; The air bubble trapping device is arranged on the mixing cavity, communicated with the mixing cavity and used for discharging the gas generated in the mixing cavity; The water outlet port is arranged at the tail part of the mixing cavity and is used for discharging sterile liquid mixed in the mixing cavity.
7. The intraoperative automatic flushing device according to claim 1, wherein two turning plates are arranged at the top of the host shell at intervals, the tops of the first sterile liquid bag and the second sterile liquid bag are respectively detachably arranged on one turning plate, and the first sterile liquid bag and the second sterile liquid bag are taken and placed by turning the two turning plates.
8. An intra-operative irrigation water temperature control method based on an intra-operative automatic irrigation water device according to any one of claims 1-7, comprising the steps of: s1, respectively installing a first sterile liquid bag and a second sterile liquid bag in a heating box and a normal temperature box, and preheating the first sterile liquid bag to a preset temperature interval through a heating module; S2, acquiring a target temperature T target and a target flow Q target ; S3, calculating the rotation speed ratio R of the first water pump and the second water pump according to the target temperature T target , the heated sterile liquid temperature T heat and the normal-temperature sterile liquid temperature T room ; S4, controlling the first water pump and the second water pump to start synchronously according to the calculated rotation speed ratio R and the total rotation speed, pumping and heating sterile liquid and normal-temperature sterile liquid from the first sterile liquid bag and the second sterile liquid bag respectively, and conveying the sterile liquid and the normal-temperature sterile liquid into a mixing pipeline assembly for mixing; s5, conveying the mixed sterile liquid to a water gun through a disposable flushing pipeline through a water outlet port, and flushing in operation.

Description

Automatic intraoperative flushing device and intraoperative flushing temperature control method Technical Field The invention relates to the technical field of medical equipment, in particular to an intraoperative automatic flushing device and an intraoperative flushing temperature control method. Background During surgery, surgical irrigation is a critical operation to maintain tissue moist, remove blood and debris, and maintain a clear view. At present, the clinical flushing operation mainly comprises the following three modes, but all have obvious defects: 1. traditional manual mixing (basin/barrel mixing) The most common flushing mode in clinic at present is to manually mix the heated sterile water and normal-temperature sterile water in a basin or a barrel, and flush the sterile water after judging the temperature through hand feeling. This approach has multiple problems: the temperature control is very inaccurate, the error can reach +/-5 ℃ depending on the hand feeling judgment of medical staff, the body temperature of a patient is lost due to supercooling, the blood vessel is contracted, and the tissue is damaged due to overheating; the flow is completely uncontrollable, namely, the flow is inclined by experience, the stable flow rate can not be realized, and the flushing effect and the operation visual field definition are affected; The repeatability is poor, and the temperature and concentration of different operators and different batches are greatly different; The nurse has great workload, needs special personnel to continuously carry out mixing, temperature measurement and delivery operation, and occupies precious human resources; the pollution risk is high, the open container is easy to be polluted by operating room environmental bacteria, and the pollution source cannot be traced; the usage amount cannot be counted, namely the usage amount of the flushing liquid cannot be recorded accurately, and the bleeding amount of a patient (bleeding amount=suction amount+gauze weight gain-flushing liquid amount) is difficult to evaluate in an assisted manner; 2. direct heating mode of single heating box Part of medical institutions adopt a metal container or a heating box to heat flushing liquid for use. Although the temperature judgment problem is solved, the method still has the following defects: the temperature response is lagged, namely the heating box has large thermal inertia, and the time from the starting to the reaching of the target temperature is 10-30 minutes, so that the heating box can not meet the urgent temperature adjustment requirement in the operation; the single temperature output is that only a fixed temperature can be output, and the differentiated requirements of different operation scenes (the body cavity irrigation needs to be close to the body temperature at 37 ℃, the body surface irrigation can be slightly low, and the joint cavity irrigation needs to be strictly controlled) can not be met; energy waste, namely, high temperature needs to be continuously maintained for standby, and heat dissipation of high-temperature liquid in a conveying pipeline is fast; the flow control is not realized, namely, only the temperature is controlled, and the flushing pressure and the water flow form cannot be accurately regulated; 3. bagged liquid preheating and heat preserving mode In recent years, bagged liquid heating devices (such as ivNowTM series of modularized heaters) adopt multiple chambers to preheat and keep warm standard infusion bags. Although this approach improves convenience, it is still limited to: Only preheating, namely only heating the bagged liquid to a fixed temperature and then taking out the bagged liquid for use, and cannot realize real-time temperature regulation; the liquid-filled bag has no mixing function, and cannot solve the contradiction that the temperature of the liquid in the bag is fixed when the liquid-filled bag needs a specific temperature; No flow control, namely no pumping and flow regulating functions, and manual extrusion or gravity instillation is still required; In summary, the prior art fails to solve the comprehensive requirements of real-time accurate temperature control, accurate flow control, aseptic guarantee and usage statistics in operation. The specific technical bottlenecks include: the temperature control principle is limited in that the prior art adopts a mode of 'directly heating to a target temperature', and the rapid dynamic adjustment (minute-level response) of the temperature cannot be realized by relying on heat conduction and thermal inertia; The technical scheme that the temperature regulation and control are not carried out by utilizing the physical principle of 'cold and hot liquid dynamic mixing' is lacking in a proportional mixing mechanism; the function is single, namely, temperature control and flow control are mutually independent and lack of cooperative regulation and control; The standard consumable can not be docked, an