CN113951843A - Intraoperative blood transfusion management and control method and system - Google Patents
Intraoperative blood transfusion management and control method and system Download PDFInfo
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Abstract
The invention is suitable for the field of medical aid decision making, and provides an intraoperative blood transfusion management and control method and system, wherein the existing blood loss is estimated according to the gauze usage amount and the suction liquid consumption amount by acquiring the gauze usage amount and the suction liquid consumption amount in the operation process; acquiring dynamic change information of the operation position, and predicting subsequent blood loss by combining the existing blood loss and the dynamic change information; when the subsequent blood loss is larger than the safe blood loss, determining the blood transfusion time point and the blood transfusion volume of the patient; and when the subsequent blood loss is further larger than the reserved blood volume, sending environment regulation information to the environment regulation equipment, sending early warning information and informing a doctor to control the blood loss in advance. Calculating the blood transfusion time point and the blood transfusion amount so as to maintain the blood loss amount and the blood transfusion amount in a dynamic balance state in the operation process; in addition, when the amount of reserved blood is insufficient, the amount of bleeding in the operation can be reduced in advance by changing the operation environment and the operation scheme, and the condition of excessive blood loss in the follow-up process is avoided.
Description
Technical Field
The invention belongs to the field of medical assistance, and particularly relates to an intraoperative blood transfusion management and control method and system.
Background
Blood transfusion has been used clinically for centuries as an effective treatment. The transfusion therapy has irreplaceable effect in the process of clinically rescuing the critical and acute and severe patients. Along with the development of modern medicine, the clinical requirements on safe and reasonable blood transfusion are higher and higher, especially the situation of shortage of blood sources is difficult to be eliminated within a foreseeable time, and the promotion of scientific, reasonable and safe blood utilization becomes an urgent task of the current clinical blood transfusion.
The purpose of intraoperative blood transfusion is to correct blood volume loss, improve the oxygen carrying capacity of red blood cells, improve microcirculation, supplement the colloidal components and coagulation factors of blood and improve the immunity of the organism, and the most important of the purposes is to improve the oxygen transport capacity. The intravenous infusion is also a key measure for treating and rescuing patients in the operation process. The blood volume can be increased and the blood pressure can be maintained through intravenous infusion. When a large amount of blood loss occurs, the volume needs to be replenished quickly, and a targeted and proper liquid needs to be selected while blood transfusion is carried out, so that the risk is reduced to the minimum, and unnecessary blood transfusion is avoided.
The surgeon's estimation of the amount of surgical bleeding is far from the actual amount of bleeding, which is typically 1-fold or more different. Experiments show that 300mL of red liquid is poured on a bed sheet, the estimated amount of most medical staff is 50-150 mL, the blood loss amount is obviously not observed by naked eyes, the estimation of the blood loss amount is seriously inaccurate, and the blood transfusion amount during the operation is closely related to the blood loss amount.
Disclosure of Invention
The embodiment of the invention provides a method and a system for managing and controlling intraoperative blood transfusion, and aims to solve the problem.
The embodiment of the invention is realized in such a way that, on one hand, an intraoperative blood transfusion management control method comprises the following steps:
obtaining the gauze usage amount and the suction liquid consumption amount in the operation process;
estimating the existing blood loss according to the gauze usage amount and the suction liquid consumption amount;
acquiring dynamic change information at a surgical position;
estimating subsequent blood loss by combining the existing blood loss and dynamic change information;
when the subsequent blood loss is larger than the safe blood loss, determining the blood transfusion time point and the blood transfusion volume of the patient;
and when the subsequent blood loss is further larger than the reserved blood volume, sending environment regulation information to the environment regulation equipment, sending early warning information and informing a doctor to control the blood loss in advance.
As a modified scheme of the invention: acquiring the gauze usage amount and the suction liquid consumption amount in the operation process; the specific steps of estimating the existing blood loss according to the gauze usage amount and the suction liquid consumption amount include:
acquiring the weight of used dry gauze and the weight of wet gauze uploaded from a gauze weighing device to obtain the gauze adsorption quantity;
acquiring the consumption amount of the cleaning liquid and the increment amount of the suction liquid uploaded by the liquid level detection equipment to obtain the increment amount of the cleaning liquid;
and (4) estimating the existing blood loss according to the sum of the adsorption quantity of the gauze and the weight gain of the cleaning solution.
As a further improvement of the invention: the acquiring of the dynamic change information at the surgical site specifically includes:
acquiring patient information and a surgical position uploaded from an operation end;
obtaining a local blood pressure value uploaded from a blood pressure monitoring device at a surgical position;
monitoring the change condition of the local blood pressure value, and judging whether the local blood pressure value is smaller than the early warning blood pressure value;
and when the local blood pressure value is smaller than the early warning blood pressure value, sending out prompt information.
As another improvement of the invention: the combination of the existing blood loss and the dynamic change information and the prediction of the subsequent blood loss specifically comprise the following steps:
estimating a blood loss limit value of the patient according to preoperative information in the patient information;
acquiring the wound area of the operation part according to the monitoring picture uploaded from the operation monitoring equipment;
and estimating the subsequent blood loss according to the relationship among the local blood pressure value, the wound area, the intraoperative bleeding time and the existing blood loss.
As a further scheme of the invention: when the subsequent blood loss is greater than the safe blood loss, determining the transfusion time point and the transfusion volume of the patient specifically comprises:
obtaining subsequent safe blood loss according to the blood loss limit value and the existing blood loss;
when the subsequent blood loss is larger than the safe blood loss, obtaining the blood output according to the subsequent blood loss and the safe blood loss;
calculating the required blood transfusion time length and the required blood bag number according to the blood transfusion amount and the blood transfusion speed;
adding the required blood transfusion time length and the blood bag replacement flushing operation time length to obtain the actual required blood transfusion time length;
and obtaining the blood transfusion time point according to the actually required blood transfusion time length and the residual operation time length.
As a further scheme of the invention: when the subsequent blood loss is further larger than the reserved blood volume, sending environment adjusting information to the environment adjusting equipment, sending early warning information, and informing a doctor of controlling the blood loss in advance specifically comprises the following steps:
when the subsequent blood loss is further larger than the reserved blood volume, obtaining the lost blood volume according to the subsequent blood loss and the reserved blood volume;
obtaining a local blood pressure inhibition value according to the blood volume loss and the residual operation duration;
confirming a temperature rise value according to the relationship between the local blood pressure inhibition value and the temperature;
sending the temperature rise value to a temperature adjusting device, wherein the temperature adjusting device raises the ambient temperature and reduces the local blood pressure value;
obtaining the dosage of the heartbeat suppressive medicine according to the local blood pressure suppression value;
the dosage is sent to an operation end to inform a doctor to control the blood loss in advance.
In another aspect, an intraoperative vascular management control system comprises:
the data acquisition module is used for acquiring the gauze usage amount and the suction liquid consumption amount in the operation process;
the existing blood loss estimation module is used for estimating the existing blood loss according to the gauze usage amount and the suction liquid consumption amount;
the dynamic change information acquisition module is used for acquiring dynamic change information at the operation position;
the subsequent blood loss estimation module is used for estimating the subsequent blood loss by combining the existing blood loss and the dynamic change information;
the blood transfusion time point determination module is used for determining the blood transfusion time point and the blood transfusion volume of the patient when the subsequent blood loss volume is larger than the safe blood loss volume;
and the information sending module is used for sending environment adjusting information to the environment adjusting equipment when the subsequent blood loss is further larger than the reserved blood volume, sending out early warning information and informing a main doctor to control the blood loss in advance.
The invention has the beneficial effects that: estimating the existing blood loss by acquiring the gauze usage amount and the suction liquid consumption amount in the operation process and according to the gauze usage amount and the suction liquid consumption amount; acquiring dynamic change information of the operation position, and predicting subsequent blood loss by combining the existing blood loss and the dynamic change information; when the subsequent blood loss is larger than the safe blood loss, determining the blood transfusion time point and the blood transfusion volume of the patient; and when the subsequent blood loss is further larger than the reserved blood volume, sending environment regulation information to the environment regulation equipment, sending early warning information and informing a doctor to control the blood loss in advance. Calculating the blood transfusion time point and the blood transfusion amount, so that the blood loss amount and the blood transfusion amount are maintained in a dynamic balance state in the operation process, the blood loss amount of a patient is ensured not to exceed the bearing range of the body of the patient, and the patient in the operation is ensured not to have excessive blood loss and have accidents; in addition, whether the blood volume of the existing reserve can meet the requirements of the patient can be known through the predicted subsequent blood loss, when the blood volume of the reserve is insufficient, the blood volume of the existing reserve can be reduced in the operation through changing the operation environment and the operation scheme in advance, the situations of insufficient reserve blood volume and excessive blood loss in the follow-up process are avoided, the method and the system can be used for accurately predicting the blood loss, the blood loss and the blood transfusion volume are kept in a dynamic balance state through regulation and control, and the risks of the patient in the operation are reduced.
Drawings
FIG. 1 is a main flow chart of an intra-operative approach to regulating blood delivery management;
FIG. 2 is a flow chart of dynamic change information acquisition in an intra-operative approach to regulating and controlling blood delivery and vascular management;
FIG. 3 is a flow chart of blood transfusion time point estimation in an intraoperative blood transfusion management and control method;
FIG. 4 is a flow chart of the local blood pressure suppression in an intraoperative blood transfusion management and control method;
fig. 5 is a schematic view of the internal structure of an intraoperative vascular management control system.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The method estimates the existing blood loss amount according to the gauze usage amount and the suction liquid consumption amount by acquiring the gauze usage amount and the suction liquid consumption amount in the operation process; acquiring dynamic change information of the operation position, and predicting subsequent blood loss by combining the existing blood loss and the dynamic change information; when the subsequent blood loss is larger than the safe blood loss, determining the blood transfusion time point and the blood transfusion volume of the patient; and when the subsequent blood loss is further larger than the reserved blood volume, sending environment regulation information to the environment regulation equipment, sending early warning information and informing a doctor to control the blood loss in advance. Calculating the blood transfusion time point and the blood transfusion amount, so that the blood loss amount and the blood transfusion amount are maintained in a dynamic balance state in the operation process, the blood loss amount of a patient is ensured not to exceed the bearing range of the body of the patient, and the patient in the operation is ensured not to have excessive blood loss and have accidents; in addition, whether the blood volume of the existing reserve can meet the requirements of the patient can be known through the predicted subsequent blood loss, when the blood volume of the reserve is insufficient, the blood volume of the existing reserve can be reduced in the operation through changing the operation environment and the operation scheme in advance, the situations of insufficient reserve blood volume and excessive blood loss in the follow-up process are avoided, the method and the system can be used for accurately predicting the blood loss, the blood loss and the blood transfusion volume are kept in a dynamic balance state through regulation and control, and the risks of the patient in the operation are reduced.
Fig. 1 shows a main flow chart of an intraoperative blood transfusion management and control method according to an embodiment of the present invention, the intraoperative blood transfusion management and control method including:
step S10: and acquiring the gauze usage amount and the suction liquid consumption amount in the operation process. In the operation process, the bleeding part is usually cleaned by gauze, in addition, the operation part and the bleeding part are washed by normal saline, and the purpose of doing so is to ensure that the visual field of the operation part is clear, and the operation part can not be shielded by blood, so that better operation is facilitated.
Step S11: the amount of blood lost was estimated from the amount of gauze used and the amount of aspirant consumed. After the aspiration fluid has been flushed through the surgical site, it is aspirated along with the bleeding, causing an increase in the weight of the aspiration fluid.
Step S12: dynamic change information at the surgical site is acquired. Due to the operation, the condition of the operation position changes in real time, such as the size of the wound of the operation position, the amount of bleeding changes along with the progress of the operation, and the blood pressure value of the operation position is in a dynamic change process.
Step S13: and (4) estimating the subsequent blood loss by combining the existing blood loss and the dynamic change information. The amount of bleeding per minute may vary due to blood pressure fluctuations, but from the roughly changing relationship between blood pressure values and time, it is possible to predict how much the subsequent amount of bleeding will be.
Step S14: when the subsequent blood loss is greater than the safe blood loss, the transfusion time point and the transfusion volume of the patient are determined. When the subsequent blood loss is larger than the safe blood loss, the patient may have excessive blood loss in the later period of the operation, which may adversely affect the physical condition of the patient during the operation, and in order to avoid excessive blood loss, the patient needs to be transfused to ensure that the blood volume in the patient is sufficient, but the optimal time for starting the blood transfusion is a problem to be confirmed, and the blood transfusion is not required at the beginning because the patient's condition is stable at the beginning and the bleeding amount is still in a safe range. At this time, the transfusion time point needs to be confirmed by reverse translation, because the transfusion volume is constant, the variation of the local blood pressure is in a certain range, and according to the consideration that the blood volume in the patient is still in a safe value after the operation is finished, the blood transfusion and the blood loss are kept in dynamic balance only by ensuring in the later period, and the specific transfusion time point can be determined according to the final operation time, the blood transfusion volume and the blood transfusion speed.
Step S15: and when the subsequent blood loss is further larger than the reserved blood volume, sending environment regulation information to the environment regulation equipment, sending early warning information and informing a doctor to control the blood loss in advance. The blood pressure of a person is not fixed and unchanged, the change range of the blood pressure is large under different time and different conditions, and the blood pressure of a patient can be reduced by changing the ambient temperature and the ambient comfort level.
In one aspect of this embodiment, the gauze usage and aspiration fluid consumption during the procedure are obtained. The specific steps of estimating the existing blood loss according to the gauze usage amount and the suction liquid consumption amount include:
step S20: and acquiring the weight of the used dry gauze and the weight of the wet gauze uploaded from the gauze weighing equipment to obtain the gauze adsorption quantity. The weight of the used dry gauze is subtracted from the weight of the wet gauze to obtain the adsorption quantity of the gauze. The method for acquiring the weight of the gauze can adopt electronic weighing equipment such as an electronic scale and the like.
Step S21: and acquiring the consumption amount of the cleaning liquid and the increment amount of the suction liquid uploaded by the liquid level detection equipment to obtain the increment amount of the cleaning liquid. The weight of the cleaning liquid can be calculated by measuring the liquid level height of the cleaning liquid and the liquid level height of the suction liquid, and the weight can also be directly measured.
Step S22: and (4) estimating the existing blood loss according to the sum of the adsorption quantity of the gauze and the weight gain of the cleaning solution.
Fig. 2 shows a flow chart of acquiring dynamic change information in an intra-operative blood transfusion management and control method according to an embodiment of the present invention, where the acquiring of the dynamic change information at a surgical site specifically includes:
step S120: and acquiring the patient information and the operation position uploaded from the operation end.
Step S121: obtaining a local blood pressure value uploaded from a blood pressure monitoring device at the surgical site.
Step S122: and monitoring the change condition of the local blood pressure value, and judging whether the local blood pressure value is smaller than the early warning blood pressure value.
Step S123: when the local blood pressure value is smaller than the early warning blood pressure value, prompt information is sent out, and the local blood pressure value is prevented from being reduced too much to cause discomfort of the body of a patient.
In one aspect of this embodiment, the estimating the subsequent blood loss by combining the existing blood loss and the dynamic change information specifically includes:
step S130: estimating the blood loss limit value of the patient according to preoperative information in the patient information. And predicting the blood loss limit value of the patient according to the preoperative physical condition of the patient, the height, the weight, the sex and the like of the patient.
Step S131: and acquiring the wound area of the operation part according to the monitoring picture uploaded from the operation monitoring equipment. The larger the wound area, the more bleeding will occur.
Step S132: and estimating the subsequent blood loss according to the relationship among the local blood pressure value, the wound area, the intraoperative bleeding time and the existing blood loss. The local blood pressure value is the amount of bleeding per unit area per unit time. Although the local blood pressure value is changed, the patient in the operation is laid on the operation table and does not move, and the change range of the blood pressure value is not too large under the condition of no change of the environment.
Fig. 3 shows a flow chart of blood transfusion time point estimation in an intraoperative blood transfusion regulation method according to an embodiment of the present invention, wherein when the subsequent blood loss is greater than the safe blood loss, the determining the blood transfusion time point and the blood transfusion volume of the patient specifically includes:
step S140: and obtaining subsequent safe blood loss according to the blood loss limit value and the existing blood loss. The safe blood loss is the blood loss limit minus the existing blood loss.
Step S141: and when the subsequent blood loss is larger than the safe blood loss, obtaining the blood output according to the subsequent blood loss and the safe blood loss. The difference between the subsequent blood loss and the safe blood loss is the volume of blood transfused.
Step S142: and calculating the required transfusion time length and the required blood bag number according to the transfusion amount and the transfusion speed. The blood bags have certain specifications, and the number of the blood bags can be increased according to the blood transfusion amount.
Step S143: and adding the required blood transfusion time length and the blood bag replacement and flushing operation time length to obtain the actual required blood transfusion time length. When each blood bag is used, since blood of different people is loaded between the blood bags, in order to avoid mutual pollution between the blood bags, the blood transfusion device needs to be flushed when the blood bags are replaced, and the blood transfusion device needs to be replaced in time after several blood bags are conveyed.
Step S144: and obtaining the blood transfusion time point according to the actually required blood transfusion time length and the residual operation time length. The remaining operation time minus the actual required transfusion time is the transfusion time point.
Fig. 4 shows a flow chart of local blood pressure suppression in an intra-operative blood transfusion management and control method according to an embodiment of the present invention, where sending environment adjustment information to an environment adjustment device and sending an early warning message to notify a doctor to control blood loss in advance specifically includes:
step S150: and when the subsequent blood loss is further larger than the reserved blood volume, obtaining the blood loss volume according to the subsequent blood loss volume and the reserved blood volume.
Step S151: and obtaining a local blood pressure inhibition value according to the blood volume loss and the residual operation duration.
Step S152: and confirming the temperature rise value according to the relation between the local blood pressure inhibition value and the temperature.
Step S153: and sending the temperature rise value to a temperature adjusting device, wherein the temperature adjusting device raises the ambient temperature and reduces the local blood pressure value. For example, the colder the weather, the higher the blood pressure. When the body is cold, the body can make stress response, the hands and feet are cold at first, then the blood vessels are contracted, the blood pressure is increased, and more blood pressure is supplied to the heart, the brain, the kidney and the like. When the temperature is lowered once, the blood pressure is raised by 1 mmHg.
Step S154: obtaining the dosage of the heartbeat suppressive medicine according to the local blood pressure suppression value.
Step S155: the dosage is sent to an operation end to inform a doctor to control the blood loss in advance. For example, during sleep at night, our blood pressure may be as low as 90/60 mmHg; when the patient is subjected to fright, the systolic pressure may suddenly rise to 170mmHg, even 200 mmHg. Therefore, the blood pressure of the person is lowered in a stable state. The blood pressure is reduced by a certain value through medicines for relieving the emotion of the patient, such as a tranquilizer and the like, and the emotion of the patient is recuperated.
Fig. 5 is a schematic diagram illustrating an internal structure of an intraoperative blood transfusion management and control system according to an embodiment of the present invention, where the intraoperative blood transfusion management and control system includes:
and the data acquisition module 100 is used for acquiring the gauze usage amount and the suction liquid consumption amount in the operation process.
And the existing blood loss estimation module 200 is used for estimating the existing blood loss according to the gauze usage amount and the suction fluid consumption amount.
And a dynamic change information acquiring module 300 for acquiring dynamic change information at the surgical site.
And a subsequent blood loss estimation module 400, configured to estimate the subsequent blood loss by combining the existing blood loss and the dynamic change information.
A transfusion time point determination module 500 for determining a transfusion time point and a transfusion volume of the patient when the subsequent blood loss is greater than the safe blood loss.
And the information sending module 600 is configured to send the environment adjustment information to the environment adjustment device when the subsequent blood loss is further greater than the reserved blood volume, and send an early warning message to notify a doctor to control the blood loss in advance.
In order to load the above method and system to operate successfully, the system may include more or less components than those described above, or combine some components, or different components, in addition to the various modules described above, for example, input/output devices, network access devices, buses, processors, memories, and the like.
The Processor may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, discrete hardware components, etc. The general purpose processor may be a microprocessor or the processor may be any conventional processor or the like which is the control center for the system and which connects the various parts of the overall user terminal using various interfaces and lines.
The memory may be used to store computer and system programs and/or modules, and the processor may perform the various functions described above by operating or executing the computer programs and/or modules stored in the memory and invoking data stored in the memory. The memory may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required for at least one function, and the like. In addition, the memory may include high speed random access memory, and may also include non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), at least one magnetic disk storage device, a Flash memory device, or other volatile solid state storage device.
It should be understood that, although the steps in the flowcharts of the embodiments of the present invention are shown in sequence as indicated by the arrows, the steps are not necessarily executed in sequence as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least a portion of the steps in various embodiments may include multiple sub-steps or multiple stages that are not necessarily performed at the same time, but may be performed at different times, and the order of performance of the sub-steps or stages is not necessarily sequential, but may be performed in turn or alternately with other steps or at least a portion of the sub-steps or stages of other steps.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some preferred embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (7)
1. A regulation and control method for blood transfusion management in operation, which is characterized in that,
obtaining the gauze usage amount and the suction liquid consumption amount in the operation process;
estimating the existing blood loss according to the gauze usage amount and the suction liquid consumption amount;
acquiring dynamic change information at a surgical position;
estimating subsequent blood loss by combining the existing blood loss and dynamic change information;
when the subsequent blood loss is larger than the safe blood loss, determining the blood transfusion time point and the blood transfusion volume of the patient;
and when the subsequent blood loss is further larger than the reserved blood volume, sending environment regulation information to the environment regulation equipment, sending early warning information and informing a doctor to control the blood loss in advance.
2. The method and system for regulating and controlling intraoperative vascular delivery management of claim 1, wherein the gauze usage and aspiration fluid consumption during surgery are obtained; the specific steps of estimating the existing blood loss according to the gauze usage amount and the suction liquid consumption amount include:
acquiring the weight of used dry gauze and the weight of wet gauze uploaded from a gauze weighing device to obtain the gauze adsorption quantity;
acquiring the consumption amount of the cleaning liquid and the increment amount of the suction liquid uploaded by the liquid level detection equipment to obtain the increment amount of the cleaning liquid;
and (4) estimating the existing blood loss according to the sum of the adsorption quantity of the gauze and the weight gain of the cleaning solution.
3. The intra-operative blood delivery management regulating method and system as claimed in claim 1, wherein the acquiring of the dynamic change information at the surgical site specifically comprises:
acquiring patient information and a surgical position uploaded from an operation end;
obtaining a local blood pressure value uploaded from a blood pressure monitoring device at a surgical position;
monitoring the change condition of the local blood pressure value, and judging whether the local blood pressure value is smaller than the early warning blood pressure value;
and when the local blood pressure value is smaller than the early warning blood pressure value, sending out prompt information.
4. The intraoperative blood transfusion management and regulation method and system according to claim 3, wherein the combination of existing blood loss and dynamic change information to predict subsequent blood loss specifically comprises:
estimating a blood loss limit value of the patient according to preoperative information in the patient information;
acquiring the wound area of the operation part according to the monitoring picture uploaded from the operation monitoring equipment;
and estimating the subsequent blood loss according to the relationship among the local blood pressure value, the wound area, the intraoperative bleeding time and the existing blood loss.
5. The method and system for regulating and controlling intraoperative blood delivery management of claim 4, wherein when subsequent blood loss is greater than safe blood loss, determining the patient's blood transfusion time point and blood transfusion volume specifically comprises:
obtaining subsequent safe blood loss according to the blood loss limit value and the existing blood loss;
when the subsequent blood loss is larger than the safe blood loss, obtaining the blood output according to the subsequent blood loss and the safe blood loss;
calculating the required blood transfusion time length and the required blood bag number according to the blood transfusion amount and the blood transfusion speed;
adding the required blood transfusion time length and the blood bag replacement flushing operation time length to obtain the actual required blood transfusion time length;
and obtaining the blood transfusion time point according to the actually required blood transfusion time length and the residual operation time length.
6. The method and system for regulating and controlling intra-operative blood transfusion management as claimed in claim 4, wherein the sending environmental regulation information to the environmental regulation device and sending early warning information to inform the treating physician to control the blood loss in advance comprises:
when the subsequent blood loss is further larger than the reserved blood volume, obtaining the lost blood volume according to the subsequent blood loss and the reserved blood volume;
obtaining a local blood pressure inhibition value according to the blood volume loss and the residual operation duration;
confirming a temperature rise value according to the relationship between the local blood pressure inhibition value and the temperature;
sending the temperature rise value to a temperature adjusting device, wherein the temperature adjusting device raises the ambient temperature and reduces the local blood pressure value;
obtaining the dosage of the heartbeat suppressive medicine according to the local blood pressure suppression value;
the dosage is sent to an operation end to inform a doctor to control the blood loss in advance.
7. An intraoperative blood delivery management and control system, comprising:
the data acquisition module is used for acquiring the gauze usage amount and the suction liquid consumption amount in the operation process;
the existing blood loss estimation module is used for estimating the existing blood loss according to the gauze usage amount and the suction liquid consumption amount;
the dynamic change information acquisition module is used for acquiring dynamic change information at the operation position;
the subsequent blood loss estimation module is used for estimating the subsequent blood loss by combining the existing blood loss and the dynamic change information;
the blood transfusion time point determination module is used for determining the blood transfusion time point and the blood transfusion volume of the patient when the subsequent blood loss volume is larger than the safe blood loss volume;
and the information sending module is used for sending environment adjusting information to the environment adjusting equipment when the subsequent blood loss is further larger than the reserved blood volume, sending out early warning information and informing a main doctor to control the blood loss in advance.
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