CN112168276A - Air pressure hemostasis control method and air pressure hemostasis equipment - Google Patents
Air pressure hemostasis control method and air pressure hemostasis equipment Download PDFInfo
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- CN112168276A CN112168276A CN202010970527.2A CN202010970527A CN112168276A CN 112168276 A CN112168276 A CN 112168276A CN 202010970527 A CN202010970527 A CN 202010970527A CN 112168276 A CN112168276 A CN 112168276A
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- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
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Abstract
The invention relates to the technical field of medical instruments, in particular to an air pressure hemostasis control method and air pressure hemostasis equipment, wherein the method is used in the air pressure hemostasis equipment and comprises the steps of controlling a pressure hemostasis unit to pressurize to target air pressure; acquiring physiological parameters monitored by the physiological parameter monitoring unit; determining an air pressure adjusting value of the pressure hemostasis unit according to the physiological parameter; and controlling the air pressure of the hemostasis part through a pressure hemostasis unit according to the air pressure adjusting value. The air pressure adjusting value of the pressure hemostasis unit is determined based on the physiological parameters monitored by the physiological parameter monitoring unit, and the subsequent air pressure control on the hemostasis part is performed based on the determined air pressure adjusting value, namely, the whole air pressure hemostasis process is performed based on the acquired physiological parameters without any artificial influence, so that the accuracy of hemostasis control is improved.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to an air pressure hemostasis control method and air pressure hemostasis equipment.
Background
After the limb is punctured, the function of the hemostasis device is particularly important. The conventional hemostatic device is a pneumatic hemostatic device, and the principle of the pneumatic hemostatic device is that a pressure hemostatic unit is inflated and deflated to obtain a desired pressure so as to achieve the purpose of auxiliary hemostasis.
Currently, the conventional pneumatic hemostatic devices can be classified into manual pneumatic hemostatic devices and automatic pneumatic hemostatic devices according to the manner of inflation/deflation. The manual air pressure hemostasis equipment is characterized in that a doctor manually inflates the pressure hemostasis unit, and after certain air pressure is reached, the compressed blood vessel can be completely blocked, so that the hemostasis effect is achieved. The automatic pneumatic hemostasis device only uses air pump inflation instead of manual inflation, which reduces the workload of doctors, but after the automatic pneumatic hemostasis device is started, the doctors still need to pay intermittent attention or observe the situation of the far end of the hemostasis part, for example, whether the far end of the hemostasis part is purple or the skin temperature is reduced, if so, the pressure in the pressure hemostasis unit needs to be adjusted, namely, the automatic pneumatic hemostasis mode also needs the participation of the doctors. Wherein the distal end of the hemostasis site is downstream of the hemostasis site, the downstream being determined based on the direction of blood flow. Therefore, both the manual pneumatic hemostasis device and the automatic pneumatic hemostasis device need to be participated by doctors, namely, the hemostasis control of the hemostasis part is manually controlled, and certain subjective factors exist in the manual control, so that the accuracy of the hemostasis control is low.
Disclosure of Invention
In view of this, the embodiment of the present invention provides an air pressure hemostasis control method and an air pressure hemostasis device, so as to solve the problem of accuracy of hemostasis control.
According to a first aspect, an embodiment of the present invention provides a pneumatic hemostasis control method, for use in a pneumatic hemostasis device, the pneumatic hemostasis device including a pressure hemostasis unit close to a hemostasis site and a physiological parameter monitoring unit far from the hemostasis site, the method including:
controlling the pressure hemostasis unit to pressurize to a target air pressure;
acquiring physiological parameters monitored by the physiological parameter monitoring unit;
determining an air pressure adjusting value of the pressure hemostasis unit according to the physiological parameter;
and controlling the air pressure of the hemostasis part through a pressure hemostasis unit according to the air pressure adjusting value.
According to the air pressure hemostasis control method provided by the embodiment of the invention, the air pressure adjusting value of the pressure hemostasis unit is determined based on the physiological parameters monitored by the physiological parameter monitoring unit, and then the air pressure of the hemostasis part is controlled based on the determined air pressure adjusting value, namely, the whole air pressure hemostasis process is performed based on the acquired physiological parameters without any artificial influence, so that the accuracy of hemostasis control is improved.
With reference to the first aspect, in a first embodiment of the first aspect, the physiological parameter monitoring unit is configured to monitor a blood oxygen value of the target subject; the determining the air pressure adjusting value of the pressure hemostasis unit according to the physiological parameter comprises the following steps:
and determining the adjustment value of the pressure hemostasis unit according to the change of the blood oxygen value.
The air pressure hemostasis control method provided by the embodiment of the invention directly determines the adjustment value of the pressure hemostasis unit by using the change of the blood oxygen value, thereby improving the efficiency of hemostasis control.
With reference to the first aspect, in a second implementation manner of the first aspect, the determining, according to the physiological parameter, an air pressure adjustment value of the pressure hemostasis unit includes:
calculating the change value of the air pressure and the change value of the physiological parameter within a preset time;
determining an air pressure adjusting value of the pressure hemostasis unit according to the change value of the air pressure and the change value of the physiological parameter;
and controlling the air pressure of the hemostasis part through a pressure hemostasis unit according to the air pressure adjusting value.
According to the air pressure hemostasis control method, the change value of the air pressure in the preset time and the change value of the physiological parameter are calculated, and the air pressure adjusting value of the pressure hemostasis unit is determined based on the change value of the air pressure and the change value of the physiological parameter, namely the air pressure adjusting value is calculated by using the change value of the pressure in the preset time and the change value of the physiological parameter, so that the accuracy of air pressure hemostasis is guaranteed.
With reference to the third embodiment of the first aspect, in a fourth embodiment of the first aspect, the physiological parameter monitoring unit is configured to monitor a target subject: body temperature, blood pressure perfusion and blood oxygen value,
the determining the air pressure adjusting value of the pressure hemostasis unit according to the change value of the air pressure and the change value of the physiological parameter comprises the following steps:
and determining the air pressure adjusting value of the pressure hemostasis unit according to the change value of the air pressure, the change value of the body temperature, the amplitude change value of the pulse, the change value of the blood pressure perfusion degree and the ratio of time during which the blood oxygen value can be monitored within a preset time period.
According to the air pressure hemostasis control method provided by the embodiment of the invention, the air pressure adjusting value of the pressure hemostasis unit is determined through the change values of the plurality of physiological parameters, so that the accuracy of the determined air pressure adjusting value can be ensured.
With reference to the second embodiment of the first aspect or the third embodiment of the first aspect, in a fourth embodiment of the first aspect, the determining an air pressure adjustment value of the pressure hemostasis unit according to the variation value of the air pressure and the variation value of the physiological parameter includes:
acquiring a preset air pressure value;
calculating a weighted sum of the change value of the air pressure and the change value of the physiological parameter;
determining an air pressure adjustment value of the pressure hemostasis unit based on a product of the weighted sum calculation result and the preset air pressure value.
According to the air pressure hemostasis control method provided by the embodiment of the invention, the air pressure adjusting value of the pressure hemostasis unit is determined by integrating the change value of the air pressure and the change value of the physiological parameter and combining the preset air pressure value on the basis, so that the accuracy of the determined air pressure adjusting value is further ensured.
With reference to the fourth implementation manner of the first aspect, in the fifth implementation manner of the first aspect, the determining an air pressure adjustment value of the pressure hemostasis unit according to the variation value of the air pressure and the variation value of the physiological parameter further includes:
judging whether the determined air pressure adjusting value is larger than a preset air pressure value or not;
and when the determined air pressure adjusting value is larger than the preset air pressure value, determining the air pressure adjusting value as the preset air pressure value.
According to the air pressure hemostasis control method provided by the embodiment of the invention, the air pressure adjusting value is limited through the preset air pressure value, so that the injury to a human body caused by the fact that the calculated air pressure adjusting value is larger than the preset air pressure value under an unexpected condition can be prevented, and the reliability of the air pressure hemostasis equipment can be ensured.
With reference to the first aspect, in a sixth implementation manner of the first aspect, the acquiring the physiological parameter monitored by the physiological parameter monitoring unit includes:
responsive to a determination of a hemostasis mode of the pneumatic hemostasis device;
starting an auxiliary hemostasis function;
based on the determined hemostasis pattern, a physiological parameter of the hemostasis site and/or a distal end of the hemostasis site is obtained.
According to the air pressure hemostasis control method provided by the embodiment of the invention, the corresponding physiological parameters are obtained based on the hemostasis mode of the air pressure hemostasis equipment, so that the obtained physiological parameters correspond to the hemostasis mode, the acquisition of other physiological parameters is avoided, and the hemostasis control efficiency is improved.
With reference to the sixth embodiment of the first aspect, in the seventh embodiment of the first aspect, the method further includes:
judging whether the auxiliary hemostasis function is finished or not;
when the auxiliary hemostasis function is not finished, judging the duration of air pressure hemostasis, and/or judging whether the pressure in the pressure hemostasis unit meets a corresponding second preset condition;
and when the air pressure hemostasis duration and/or the pressure in the pressure hemostasis unit does not meet the corresponding second preset condition, controlling the air pressure in the pressure hemostasis unit.
The air pressure hemostasis control method provided by the embodiment of the invention utilizes the air pressure hemostasis duration and/or pressure to carry out safety control in the air pressure hemostasis process, and can ensure the reliability of the air pressure hemostasis equipment.
With reference to the first aspect, in an eighth implementation manner of the first aspect, the method further includes:
judging whether the hemostasis part has hemorrhage or not;
when the hemostasis part is in bleeding, a bleeding alarm is sent out.
According to a second aspect, embodiments of the present invention also provide a pneumatic haemostatic device comprising:
a pressure hemostasis unit near a hemostasis site and a physiological parameter monitoring unit far away from the hemostasis site;
the controller is connected with the pressure hemostasis unit and the physiological parameter monitoring unit;
a memory also communicatively coupled to the controller; wherein the memory stores instructions executable by the controller to cause the controller to perform a pneumatic hemostasis control method as described in the first aspect of the invention, or any embodiment of the first aspect.
According to the air pressure hemostasis control device provided by the embodiment of the invention, the air pressure adjusting value of the pressure hemostasis unit is determined based on the physiological parameters monitored by the physiological parameter monitoring unit, and then the air pressure of the hemostasis part is controlled based on the determined air pressure adjusting value, namely, the whole air pressure hemostasis process is performed based on the acquired physiological parameters without any artificial influence, so that the accuracy of hemostasis control is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 shows a block diagram of a pneumatic hemostasis device in an embodiment of the invention;
FIG. 2 shows a block diagram of a pneumatic hemostasis device in an embodiment of the invention;
FIG. 3 is a flow chart of a pneumatic hemostasis control method according to an embodiment of the invention;
FIG. 4 is a flow chart of a pneumatic hemostasis control method according to an embodiment of the invention;
FIG. 5 is a flow chart of a pneumatic hemostasis control method according to an embodiment of the invention;
FIG. 6 is a flow chart of a pneumatic hemostasis control method according to an embodiment of the invention;
fig. 7 is a schematic view of an operation mode of the pneumatic hemostasis device according to an embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
An embodiment of the present invention provides a pneumatic hemostasis device, which is shown in fig. 1 and includes a pressure hemostasis unit 1, a physiological parameter monitoring unit 2, a controller 3 and a memory 4.
The pressure hemostasis unit 1 is close to the hemostasis position and is arranged, namely the pressure hemostasis unit is used for hemostasis of the hemostasis position and can also be used for monitoring the air pressure in the pressure hemostasis unit so as to obtain the air pressure of the hemostasis position. For example, the pressure hemostasis unit may be a hemostasis cuff. The air pressure in the pressure hemostasis unit can be monitored by arranging the air pressure monitoring unit in the hemostasis cuff, so that the air pressure of a hemostasis part is obtained.
The function of the pressure hemostasis unit in this embodiment is not limited to hemostasis at the hemostasis site, and may also have other functions, for example, monitoring the air pressure at the hemostasis site, adjusting the air pressure at the hemostasis site, and the like, and the other functions may be correspondingly set according to actual situations, and are not limited herein.
Wherein, the pressure hemostasis unit 1 can further include a pump valve module for controlling the pressure in the pressure hemostasis unit 1, i.e. controlling the air pressure at the hemostasis part. Alternatively, when the pressure hemostasis unit 1 monitors the air pressure at the hemostasis site, the monitored air pressure may be sent to the controller 3, and the controller 3 may control the action of the pressure hemostasis unit 1 based on the air pressure to further adjust the air pressure at the hemostasis site. For example, when receiving the air pressure of the current hemostatic region, the controller 3 compares the air pressure with the target air pressure, and when the air pressure is higher than the target air pressure, controls the pump and valve unit in the air pressure hemostatic unit 1 to operate to reduce the air pressure in the air pressure hemostatic unit 1 until the air pressure in the air pressure hemostatic unit 1 reaches the target air pressure.
The physiological parameter monitoring unit 2 is arranged far away from the hemostasis site, i.e. at the far end of the hemostasis site. Wherein, the far end of the hemostasis site refers to the downstream part of the hemostasis site, and the downstream part is determined based on the blood flow direction. Alternatively, the distal end of the hemostasis site may also be understood to correspond to the end of the blood circulation at the hemostasis site. For example, if the hemostasis site is a wrist, the corresponding distal end of the hemostasis site can be a finger, and the physiological parameter monitoring unit is disposed at the finger.
The physiological parameter monitoring unit 2 is used for monitoring physiological parameters at the far end of the hemostasis site, wherein the physiological parameters can include, but are not limited to, body temperature, blood pressure perfusion degree, blood oxygen value and the like. The monitoring of the specific physiological parameters can be set correspondingly according to actual conditions. The physiological parameter monitoring unit 2 sends the monitored physiological parameter to the controller 3, the controller 3 determines the air pressure adjusting value of the pressure hemostasis unit 1 based on the physiological parameter, and controls the air pressure of the hemostasis part through the pressure hemostasis unit 1 according to the air pressure adjusting value. Details about this process will be described in detail below.
The controller 3 is respectively connected with the pressure hemostasis unit 1 and the physiological parameter monitoring unit 2, and is used for receiving the physiological parameters monitored by the physiological parameter monitoring unit 2, determining an air pressure adjustment value of the pressure hemostasis unit, and controlling the air pressure of the hemostasis part through the pressure hemostasis unit 1 according to the air pressure adjustment value.
The memory 4 is connected in communication with the controller 3, and the memory stores instructions executable by the controller 3, and the instructions are executed by the controller 3 to cause the controller to execute the pneumatic hemostasis control method provided in the embodiment of the invention. In particular, the memory 4, as a non-transitory computer readable storage medium, may be used for storing non-transitory software programs, non-transitory computer executable programs, and modules, such as program instructions/modules corresponding to the zeroing method in the embodiments of the present application. The controller 3 executes various functional applications and data processing by running non-transitory software programs, instructions and modules stored in the memory 4, so as to implement the pneumatic hemostasis control method described in the embodiment of the invention.
The memory 4 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to use of a processing device operated by the server, and the like. Further, the memory 4 may include high speed random access memory, and may also include non-transitory memory, such as at least one magnetic disk storage device, flash memory device, or other non-transitory solid state storage device. In some embodiments, the memory 4 may optionally include memory located remotely from the controller 3, and these remote memories may be connected to the controller via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
According to the air pressure hemostasis equipment provided by the embodiment, the air pressure adjusting value of the pressure hemostasis unit is determined based on the physiological parameters monitored by the physiological parameter monitoring unit, and the air pressure at the hemostasis part is subsequently controlled based on the determined air pressure adjusting value, namely, the whole air pressure hemostasis process is performed based on the acquired physiological parameters, no artificial influence exists, and the accuracy of hemostasis control is improved.
In some optional embodiments of this embodiment, the hemostasis by pressure unit further includes a bleeding monitoring unit, and the physiological parameter monitoring unit includes at least one of a body temperature monitoring unit, a blood pressure perfusion monitoring unit, and a blood oxygen value monitoring unit. The blood oxygen monitoring unit is used for monitoring the blood oxygen value of the far end of the hemostasis part. Specifically, the blood oxygen monitoring unit, the body temperature monitoring unit and the bleeding monitoring unit may be correspondingly set according to actual situations, which is not limited herein.
In other optional embodiments of this embodiment, the pressure hemostasis unit further includes a safety pressure monitoring unit, which is used for safely monitoring the air pressure at the hemostasis part during the air pressure hemostasis process, so as to ensure the reliability of the air pressure hemostasis device.
As an optional implementation manner of this embodiment, the pneumatic hemostasis device further includes at least one of a setting unit, an interaction unit, a display unit, and an alarm unit. The pneumatic hemostasis device comprises a setting unit, an interaction unit, a display unit and an alarm unit, wherein the setting unit is used for providing an operation entrance for a user, the interaction unit is used for responding to the operation of the user on the pneumatic hemostasis device, the display unit is used for displaying physiological parameters monitored by the pneumatic hemostasis device, and the alarm unit is used for giving an alarm when bleeding occurs at a hemostasis part or other abnormal conditions. Specifically, the setting unit, the interaction unit, the display unit and the alarm unit in the pneumatic hemostasis device may be set according to actual conditions, and are not limited herein.
As an alternative embodiment of this embodiment, as shown in fig. 2, from the function division point of view, the pneumatic hemostatic device is divided into 3 component parts, namely an accessory part, a host part and an interactive part. Wherein the accessory part comprises a pressure hemostasis unit, a bleeding monitoring unit, an air pressure monitoring unit, a body temperature monitoring unit and a blood oxygen value monitoring unit (not shown in figure 2); the main machine part comprises a safety pressure monitoring unit, a pump valve unit, a controller and a signal processing unit; the interactive part comprises an interactive unit, a setting unit, a display unit and an alarm unit. The signal processing unit is used for converting input signals into signals which can be processed by the controller and the interaction unit. In each component of the pneumatic hemostasis device shown in fig. 2, the pneumatic hemostasis unit includes a pressure hemostasis unit, a bleeding monitoring unit, a pneumatic monitoring unit, a safety pressure monitoring unit and a pump valve unit, and the physiological parameter monitoring unit includes a body temperature monitoring unit.
It should be noted that, in the embodiment of the present invention, the air pressure hemostasis control method may be applied to hemostasis of a limb part, and may also be applied to hemostasis of other parts, and the application part is not limited at all. Taking a limb part as an example, the principle of the air pressure hemostasis control method in the embodiment of the invention is as follows: in the radial artery hemostasis process, soft tissue injury may occur when the limb is pressed for a long time, and complications such as radial artery occlusion and the like are serious. The reasonable pressure hemostasis unit should play a role in hemostasis on the premise of maintaining basic tail end circulation, and physiological parameters such as the air pressure (which can also be represented by the pulse wave amplitude of the hemostasis part), the blood oxygen value of the far end, the body temperature and the like of the hemostasis part can reflect the blood circulation state of the far end of the hemostasis part. Therefore, in the embodiment of the present invention, the air pressure adjustment value of the pressure hemostasis unit can be determined according to the physiological parameter monitored by the physiological parameter monitoring unit, so that the controller in the air pressure hemostasis device can control the air pressure at the hemostasis part through the pressure hemostasis unit on the basis of the air pressure adjustment value.
In accordance with an embodiment of the present invention, there is provided an embodiment of a pneumatic hemostasis control method, it should be noted that the steps illustrated in the flowchart of the accompanying drawings may be executed in a computer system, such as a set of computer executable instructions, and that while a logical order is illustrated in the flowchart, in some cases the steps illustrated or described may be executed in an order different than that illustrated herein.
In this embodiment, a pneumatic hemostasis method is provided, which can be used in the pneumatic hemostasis device, fig. 3 is a flowchart of a pneumatic hemostasis control method according to an embodiment of the invention, and as shown in fig. 3, the flowchart includes the following steps:
and S11, controlling the pressure hemostasis unit to pressurize to the target air pressure.
The target air pressure may be a non-invasive blood pressure value measured before the hemostasis portion is punctured, and may be, for example, a non-invasive systolic pressure of the hemostasis portion; the target air pressure may also be an air pressure set by the user himself or herself, or the like.
The target air pressure can be stored in the storage space of the air pressure hemostasis device, and can be set in the setting unit of the air pressure hemostasis device by a user. The specific manner of obtaining the target air pressure is not limited herein.
The controller in the air pressure hemostasis equipment controls the action of a pump valve unit in the pressure hemostasis unit to inflate the pressure hemostasis unit, and the air pressure in the pressure hemostasis unit is monitored in the inflating process until the pressure hemostasis unit is pressurized to the target air pressure.
And S12, acquiring the physiological parameter monitored by the physiological parameter monitoring unit.
As mentioned above, the physiological parameter monitoring unit is disposed away from the hemostasis site, and the physiological parameter monitored by the physiological parameter monitoring unit may be a physiological parameter at the distal end of the hemostasis site, and may be a blood oxygen value or a body temperature at the distal end of the hemostasis site, or the like. Of course, the physiological parameter is not limited to this, and may be other physiological parameters, specifically which physiological parameter is used to perform the subsequent calculation of the air pressure adjustment value, which is not limited herein, and may be set according to the actual situation.
And S13, determining the air pressure adjusting value of the pressure hemostasis unit according to the physiological parameters.
After the air pressure hemostasis device acquires the physiological parameters monitored by the physiological parameter monitoring unit, the air pressure regulation value in the air pressure hemostasis unit can be determined based on the change value of the physiological parameters; it is also possible to perform a weighted calculation on the acquired physiological parameters, and determine an air pressure adjustment value and the like in the pressure hemostasis unit based on the result of the weighted calculation. Specifically, this step will be described in detail below.
And S14, controlling the air pressure of the hemostasis part through the pressure hemostasis unit according to the air pressure adjusting value.
After the air pressure hemostatic device determines the air pressure adjustment value of the air pressure hemostatic unit in S13, the controller controls the operation of the pump and valve unit using the air pressure adjustment value to control the air pressure at the hemostatic site.
The controller can be set according to the actual situation, and does not limit any limitation, and only needs to ensure that the air pressure at the hemostasis part can reach the target air pressure value after the controller controls the action of the pump valve unit.
In the air pressure hemostasis control method according to this embodiment, the air pressure adjustment value of the pressure hemostasis unit is determined based on the physiological parameter monitored by the physiological parameter monitoring unit, and then the air pressure at the hemostasis part is controlled based on the determined air pressure adjustment value, that is, the whole air pressure hemostasis process is performed based on the acquired physiological parameter without any artificial influence, so that the accuracy of hemostasis control is improved.
In this embodiment, a pneumatic hemostasis method is provided, which can be used in the pneumatic hemostasis device, fig. 4 is a flowchart of a pneumatic hemostasis control method according to an embodiment of the present invention, and as shown in fig. 4, the flowchart includes the following steps:
and S21, controlling the pressure hemostasis unit to pressurize to the target air pressure.
Please refer to S11 in fig. 3 for details, which are not described herein.
And S22, acquiring the physiological parameter monitored by the physiological parameter monitoring unit.
The physiological parameter monitored by the physiological parameter monitoring unit can be a blood oxygen value of the target object.
Please refer to S12 in the embodiment shown in fig. 3, which is not described herein again.
And S23, determining the air pressure adjusting value of the pressure hemostasis unit according to the physiological parameters.
In the present embodiment, the adjustment value of the pressure hemostasis unit is determined according to the change of the blood oxygen value. Specifically, the controller determines whether the blood oxygen value of the current target object is stable by using the change of the blood oxygen value, indicates that the air pressure of the hemostasis part needs to be adjusted when the blood oxygen value is unstable, and determines that the air pressure adjustment value of the pressure hemostasis unit is a preset air pressure adjustment value. The preset air pressure adjustment value may be stored in the air pressure hemostasis device, or may be obtained from the outside when the air pressure hemostasis device needs, and the like, and the obtaining manner of the preset air pressure adjustment value is not limited at all.
Specifically, the above S23 may include the following steps:
s231, whether the change of the blood oxygen value meets a first preset condition is judged.
After obtaining the change of the blood oxygen value, the air pressure hemostasis device compares each obtained physiological parameter with a corresponding first preset condition, and executes S232 as long as the physiological parameter of the first preset condition is not met; otherwise, S22 is executed.
The first preset condition is a stable blood oxygen value, and the stable blood oxygen value may be a change rate of the blood oxygen value within a certain time that is smaller than a change threshold. This is because if the set initial target air pressure is not appropriate, the change of the blood oxygen value at the distal end of the hemostasis site is relatively obvious, which indicates that the air pressure in the pressure hemostasis unit needs to be adjusted at this time. Therefore, when the obtained change rate of the blood oxygen value is greater than the change threshold, the air pressure in the pressure hemostasis unit needs to be adjusted, that is, the air pressure adjustment value in the pressure hemostasis unit needs to be determined.
S232, determining the air pressure adjusting value of the pressure hemostasis unit as a preset air pressure adjusting value.
When the atmospheric pressure hemostasis device determines that the change of the blood oxygen value does not meet the first preset condition, the atmospheric pressure adjusting value in the pressure hemostasis unit is set to be the preset atmospheric pressure adjusting value. The preset air pressure adjusting value can be stored in a storage space of the air pressure hemostasis equipment, and the specific numerical value can be correspondingly set according to the actual situation. For example, the preset air pressure adjustment value is 10 mmHg.
And S24, controlling the air pressure of the hemostasis part through the pressure hemostasis unit according to the air pressure adjusting value.
The air pressure hemostasis device slowly reduces the air pressure in the pressure hemostasis unit on the basis of the target air pressure and presets an air pressure adjusting value, namely deltaP. After the pressure inside the pressure hemostasis unit is depressurized deltaP, the pneumatic hemostasis apparatus again performs the above-described S22 to determine again whether the pressure inside the pneumatic hemostasis unit needs to be adjusted.
The atmospheric pressure hemostasis control method described in this embodiment, through monitoring the change of the blood oxygen value, when the change of the blood oxygen value does not satisfy the first preset condition, it indicates that the atmospheric pressure in the pressure hemostasis unit needs to be adjusted at this moment, and the specific adjustment value is the preset atmospheric pressure adjustment value at this moment, and the atmospheric pressure in the pressure hemostasis unit is adjusted by directly utilizing the preset atmospheric pressure adjustment value, so that the efficiency of hemostasis control is improved, and semi-automatic control over the atmospheric pressure hemostasis equipment is realized. The semi-automatic control process can be understood as a semi-automatic control process because the air pressure in the pressure hemostasis unit needs to be adjusted, the air pressure adjustment value is directly set as a preset air pressure adjustment value, and the preset air pressure adjustment value is set in advance.
In this embodiment, a pneumatic hemostasis method is provided, which can be used in the pneumatic hemostasis device, fig. 5 is a flowchart of a pneumatic hemostasis control method according to an embodiment of the invention, and as shown in fig. 5, the flowchart includes the following steps:
and S31, controlling the pressure hemostasis unit to pressurize to the target air pressure.
Please refer to S11 in fig. 3 for details, which are not described herein.
And S32, acquiring the physiological parameter monitored by the physiological parameter monitoring unit.
In this embodiment, there is no sequential relationship between S32 and S31, for example, the pressure hemostasis unit may be pressurized by monitoring an initial value of the physiological parameter by the physiological parameter monitoring unit before pressurizing the pressure hemostasis unit; when the pressure hemostasis unit is pressurized to the target air pressure, the physiological parameters are monitored again, and the like.
In this embodiment, the air pressure adjustment value is determined according to the variation value of the physiological parameter and the variation value of the air pressure. The change value of the physiological parameter can also be an initial value of the physiological parameter monitored before the pressure hemostasis unit is pressurized or when the pressure hemostasis unit is pressurized to a target air pressure according to the characteristics of each physiological parameter; then, continuously monitoring the corresponding physiological parameters within a preset time after the pressure hemostasis unit is pressurized to the target air pressure, and determining the change value of the physiological parameters.
And S33, determining the air pressure adjusting value of the pressure hemostasis unit according to the physiological parameters.
In this embodiment, the pressure adjustment value of the pressure hemostasis unit is calculated in real time by using the variation value of the physiological parameter. Specifically, the step S33 includes the following steps:
s331, calculating a change value of air pressure and a change value of physiological parameters in a preset time.
The pressure change value is used for representing the pressure change value in the pressure hemostasis unit, namely the pressure change value of the hemostasis part, and the pressure change value can be obtained by continuously monitoring the pressure in the pressure hemostasis unit by using the pressure monitoring unit in the pressure hemostasis unit within a preset time after the pressure hemostasis unit is pressurized to the target pressure.
S332, determining an air pressure adjusting value of the pressure hemostasis unit according to the change value of the air pressure and the change value of the physiological parameter.
The controller can perform weighted calculation on the change value of the air pressure and the change value of the physiological parameter after obtaining the change value of the air pressure, and determine the air pressure adjusting value of the pressure hemostasis unit on the basis of the weighted calculation.
As an optional implementation manner of this embodiment, the step S332 may include the following steps:
(1) and acquiring a preset air pressure value.
The preset air pressure value is an allowable maximum air pressure amount which is adjusted once, and the value of the preset air pressure value can be set correspondingly according to the actual situation, for example, the air pressure adjustment value can be 10 mmHg.
(2) A weighted sum of the change in barometric pressure and the change in the physiological parameter is calculated.
The weight corresponding to the change value of the air pressure and the change value of the physiological parameter can be set according to the actual situation, and is not limited herein.
(3) And determining an air pressure adjusting value of the pressure hemostasis unit based on the product of the calculation result of the weighted sum and the preset air pressure value.
And (3) the air pressure adjusting value of the pressure hemostasis unit is the product of the calculation result of the weighted sum of the step (2) and the preset air pressure value.
The physiological parameter monitoring unit is used for monitoring the body temperature, blood pressure perfusion degree and blood oxygen value of the target object. In step S332, the air pressure adjustment value of the pressure hemostasis unit may be determined according to the change value of the air pressure within the preset time period, the change value of the body temperature, the change value of the blood pressure perfusion degree, and the ratio of the time during which the blood oxygen value can be monitored.
(1) Variation value of air pressure in preset time
When the air pressure hemostasis unit is pressurized to the target air pressure, the air pressure of the hemostasis part is monitored by the air pressure hemostasis unit, an initial value of the air pressure is obtained, and the initial value is used as a first air pressure value.
And continuously monitoring the air pressure of the hemostasis part by using the air pressure hemostasis unit within a preset time after the air pressure hemostasis unit is pressurized to the target air pressure to obtain a second air pressure, wherein the air pressure after the preset time can be used as the second air pressure, and the average value of the air pressures monitored within the preset time can also be calculated and used as the second air pressure.
The controller can calculate the change value of the air pressure in the preset time length by using the first air pressure value and the second air pressure value.
(2) Body temperature change value within preset time length
Before the air pressure hemostasis unit is pressurized, the body temperature of the far end of the hemostasis part is monitored by the physiological parameter monitoring unit, and the initial value of the body temperature of the far end of the hemostasis part is obtained and serves as a first body temperature T0.
Continuously monitoring the body temperature Ti of the far end of the hemostasis part by using a physiological parameter monitoring unit within a preset time after the air pressure hemostasis unit is pressurized to a target air pressure; the body temperature after the preset duration may be taken as the second body temperature, or an average value of the body temperatures monitored within the preset duration may be calculated, and taken as the second body temperature, and so on.
The controller can calculate the body temperature change value within the preset time length by utilizing the first body temperature and the second body temperature.
(3) Change value of blood pressure perfusion degree within preset time length
When the air pressure hemostasis unit is pressurized to the target air pressure, the physiological parameter monitoring unit is used for monitoring the blood pressure perfusion degree of the far end of the hemostasis part to obtain an initial value of the blood pressure perfusion degree, and the initial value is used as a first blood pressure perfusion degree.
Continuously monitoring the blood pressure perfusion degree of the far end of the hemostasis part by using a physiological parameter monitoring unit within a preset time after the air pressure hemostasis unit is pressurized to the target air pressure to obtain a second blood pressure perfusion degree; the blood pressure perfusion degree after the preset time period may be used as the second blood pressure perfusion degree, or an average value of the blood pressure perfusion degrees monitored within the preset time period may be calculated and used as the second blood pressure perfusion degree, and so on.
The controller can calculate the change value of the blood pressure perfusion degree in the preset time length by utilizing the first blood pressure perfusion degree and the second blood pressure perfusion degree.
(4) Time to blood oxygen value monitoring
The specific calculation mode is that after the air pressure hemostasis unit is pressurized to the target air pressure, the time that the physiological parameter monitoring unit can monitor the blood oxygen value of the far end of the hemostasis part in the preset time is counted, and then the ratio of the time for monitoring the blood oxygen value of the far end of the hemostasis part to the preset time is calculated to obtain the time occupation ratio RTspo2 in the preset time, wherein the blood oxygen value can be monitored.
As an alternative implementation manner of this embodiment, after obtaining the variation value of the air pressure and the variation value of each physiological parameter, the controller may calculate the air pressure adjustment value by the following formula:
the air pressure adjustment value (k1 air pressure change value + k2 body temperature change value + k3 blood pressure perfusion change value + k4 time ratio at which the blood oxygen value can be monitored) is a preset air pressure value.
In some optional embodiments of this embodiment, the change value of the pulse amplitude within the preset time period may also be obtained based on the conversion of the monitored air pressure. Then, the change value and the weight of the air pressure in the calculation formula of the air pressure adjustment value are replaced by the change value and the weight of the pulse amplitude, and the air pressure adjustment value can be determined through calculation.
As an optional implementation manner of this embodiment, after the controller calculates the air pressure adjustment value, the controller may further perform the following steps to confirm the calculated air pressure adjustment value, where the specific steps are as follows:
(1) and judging whether the determined air pressure adjusting value is larger than a preset air pressure value or not.
When the determined air pressure adjusting value is larger than the preset air pressure value, executing the step (2); otherwise, the calculated air pressure adjusting value is directly determined as the air pressure adjusting value in the pressure hemostasis unit.
(2) And determining the air pressure adjusting value as a preset air pressure value.
The air pressure adjusting value is limited through the preset air pressure value, so that the injury to a human body caused by the fact that the calculated air pressure adjusting value is larger than the preset air pressure value under the unexpected condition can be prevented, and the reliability of the air pressure hemostasis equipment can be guaranteed.
And S34, controlling the air pressure of the hemostasis part through the pressure hemostasis unit according to the air pressure adjusting value.
Please refer to S14 in fig. 3 for details, which are not described herein.
According to the air pressure hemostasis control method provided by the embodiment of the invention, the air pressure adjustment value is calculated by monitoring the change value of the air pressure and the change value of the physiological parameter and utilizing the monitored change value, so that the accuracy rate of air pressure hemostasis is ensured. The blood circulation state of the far-end hemostasis part is evaluated by monitoring the air pressure of the hemostasis part and various physiological parameters of the blood oxygen value, the blood pressure perfusion value and the body temperature of the far-end hemostasis part, and the air pressure in the pressure hemostasis unit is automatically adjusted to realize the full-automatic auxiliary hemostasis function; the method not only reduces the probability of radial artery occlusion and soft tissue injury in the hemostasis process, but also greatly reduces the task load of medical staff in the hemostasis work, simultaneously monitors pressure and vital signs scientifically and quantitatively, further evaluates patients better and realizes automatic air pressure hemostasis equipment in a real sense.
In this embodiment, a pneumatic hemostasis method is provided, which can be used in the pneumatic hemostasis device, fig. 6 is a flowchart of a pneumatic hemostasis control method according to an embodiment of the invention, and as shown in fig. 6, the flowchart includes the following steps:
s401, responding to the determination of the hemostasis mode of the pneumatic hemostasis device.
The hemostasis mode of the air pressure hemostasis equipment can be divided into two modes, one mode is a semi-automatic hemostasis mode, and the other mode is a full-automatic hemostasis mode. After the user sets the hemostasis mode of the pneumatic hemostasis device, the pneumatic hemostasis device determines the hemostasis mode of the pneumatic hemostasis device in response to the operation.
As an alternative to this embodiment, the hemostasis mode of the pneumatic hemostasis device can also be a reduced pressure mode. For example, the whole hemostasis process is set to 3 stages, each stage lasts for N minutes, and the target air pressure of the next stage is reduced by P mmHg compared with the current air pressure; where N may take a typical value of 60 and P may take a typical value of 10 mmHg.
And S402, starting an auxiliary hemostasis function.
The auxiliary hemostasis function is that the pressure adjusting value in the pressure hemostasis unit is determined through the subsequent steps, so that the air pressure adjustment of the hemostasis part is realized.
And S403, controlling the pressure hemostasis unit to pressurize to the target air pressure.
Please refer to S11 in the embodiment shown in fig. 3 for details, which are not described herein again.
S404, acquiring the physiological parameters monitored by the physiological parameter monitoring unit.
In the pneumatic hemostasis control method described in the embodiment shown in fig. 4, since the pneumatic adjustment value in the pressure hemostasis unit is determined based on the preset pneumatic adjustment value, the pneumatic hemostasis control method may be considered as a semi-automatic pneumatic hemostasis control method. Therefore, when the hemostasis mode is the semi-automatic mode, reference may be made to the description of S22 in the embodiment shown in fig. 4 at step S404, which is not described herein again.
In the pneumatic hemostasis control method in the embodiment shown in fig. 5, since the pneumatic adjustment in the pressure hemostasis unit is calculated based on the physiological parameter, the pneumatic hemostasis control method can be considered as a fully automatic pneumatic hemostasis control method. Therefore, when the hemostasis mode is the fully automatic mode, reference may be made to the description of S32 in the embodiment shown in fig. 5 at step S404, which is not described here.
S405, determining an air pressure adjusting value of the pressure hemostasis unit according to the physiological parameters.
When the hemostasis mode of the pneumatic hemostasis device is the semi-automatic mode, reference may be made to the description of S23 in the embodiment shown in fig. 4 at step S402 above, and details are not repeated here.
When the hemostasis mode of the pneumatic hemostasis device is the fully automatic mode, reference may be made to the description of S33 in the embodiment shown in fig. 5 at step S402 above, and details are not repeated here.
Fig. 7 shows a schematic view of the operation mode of the pneumatic hemostasis device, and as shown in fig. 7, the operation mode of the pneumatic hemostasis device, i.e. the hemostasis mode, is divided into a semi-automatic mode and a fully automatic mode. Wherein, for the semi-automatic mode, the air pressure hemostasis equipment can monitor the air pressure of the hemostasis part so as to adjust the air pressure in the pressure hemostasis unit; the pneumatic hemostasis device can also monitor the blood oxygen value at the distal end of the hemostasis site to adjust the air pressure within the pressure hemostasis unit.
For the fully automatic mode, the pneumatic hemostasis device can monitor the pulse of the hemostasis part, the blood oxygen value, the perfusion degree and the body temperature of the far end of the hemostasis part, and the pneumatic pressure in the pressure hemostasis unit can be adjusted in a self-adaptive mode.
And S406, controlling the air pressure of the hemostasis part through the pressure hemostasis unit according to the air pressure adjusting value.
Please refer to S13 in fig. 3 for details, which are not described herein.
S407, judging whether the hemostatic part has hemorrhage or not.
The pneumatic hemostasis device can monitor the bleeding situation of the hemostasis part, and when the bleeding of the hemostasis part is monitored, S408 is executed; otherwise, S409 is executed.
And S408, giving out a blood overflow alarm.
When the air pressure hemostasis equipment monitors the bleeding at the hemostasis part, an alarm unit in the air pressure hemostasis equipment can send out a bleeding alarm. At the same time, S409 described below is executed.
And S409, judging whether the auxiliary hemostasis function is finished or not.
When the auxiliary hemostatic function is not finished, executing S410; otherwise, S412 is performed.
S410, judging the duration of air pressure hemostasis, and/or judging whether the pressure in the pressure hemostasis unit meets a corresponding second preset condition.
When the air pressure hemostasis duration and/or the pressure in the pressure hemostasis unit does not meet the corresponding second preset condition, executing S411; otherwise, S407 is executed.
Specifically, for judgment of the pneumatic hemostasis duration: counting the air pressure hemostasis duration from the beginning of air pressure hemostasis, and executing S411 when the air pressure hemostasis duration exceeds a set value.
Judgment of the air pressure in the pressure hemostasis unit: and monitoring whether the air pressure in the pressure hemostasis unit is higher than a preset air pressure value Pth or not in real time, and executing S411 when the air pressure is higher than the preset air pressure value. The preset air pressure value may be set to be the initial target air pressure +60 mmHg. Of course, other values may be used, and the setting of the specific value may be adjusted accordingly according to actual situations.
And S411, controlling the air pressure in the pressure hemostasis unit.
When the pneumatic hemostasis duration exceeds a set value, the valve is opened, the air pump is closed, the hemostasis function is quitted, and a finish sound prompt can be given.
When the pressure in the pressure hemostasis unit is higher than the preset air pressure value, the air pump is closed, and the air valves are finely adjusted, so that the air pressure value in the pressure hemostasis unit is maintained at Pth.
And S412, quitting the auxiliary hemostasis function.
In the pneumatic hemostasis control method of this embodiment, the corresponding physiological parameter is obtained based on the hemostasis mode of the pneumatic hemostasis device, so that the obtained physiological parameter corresponds to the hemostasis mode, thereby avoiding obtaining other physiological parameters and improving the efficiency of hemostasis control.
Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations fall within the scope defined by the appended claims.
Claims (10)
1. A pneumatic hemostasis control method for use in a pneumatic hemostasis device, the pneumatic hemostasis device including a pressure hemostasis unit proximate a hemostasis site and a physiological parameter monitoring unit distal from the hemostasis site, the method comprising:
controlling the pressure hemostasis unit to pressurize to a target air pressure;
acquiring physiological parameters monitored by the physiological parameter monitoring unit;
determining an air pressure adjusting value of the pressure hemostasis unit according to the physiological parameter;
and controlling the air pressure of the hemostasis part through a pressure hemostasis unit according to the air pressure adjusting value.
2. The method of claim 1, wherein the physiological parameter monitoring unit is configured to monitor a blood oxygen value of a target subject;
the determining the air pressure adjustment value of the pressure hemostasis unit according to the physiological parameter comprises:
and determining the adjustment value of the pressure hemostasis unit according to the change of the blood oxygen value.
3. The method of claim 1, wherein determining an air pressure adjustment value for the pressure hemostasis unit based on the physiological parameter comprises:
calculating the change value of the air pressure and the change value of the physiological parameter within a preset time;
determining an air pressure adjusting value of the pressure hemostasis unit according to the change value of the air pressure and the change value of the physiological parameter;
and controlling the air pressure of the hemostasis part through a pressure hemostasis unit according to the air pressure adjusting value.
4. The method of claim 3, wherein the physiological parameter monitoring unit is used to monitor the target subject for: body temperature, blood pressure perfusion and blood oxygen value,
the determining the air pressure adjusting value of the pressure hemostasis unit according to the change value of the air pressure and the change value of the physiological parameter comprises the following steps:
and determining the air pressure adjusting value of the pressure hemostasis unit according to the change value of the air pressure, the change value of the body temperature, the change value of the blood pressure perfusion degree and the ratio of time during which the blood oxygen value can be monitored within a preset time period.
5. The method according to claim 3 or 4, wherein the determining the air pressure adjustment value of the pressure hemostasis unit according to the variation value of the air pressure and the variation value of the physiological parameter comprises:
acquiring a preset air pressure value;
calculating a weighted sum of the change value of the air pressure and the change value of the physiological parameter;
determining an air pressure adjustment value of the pressure hemostasis unit based on a product of the weighted sum calculation result and the preset air pressure value.
6. The method of claim 5, wherein determining the air pressure adjustment value of the pressure hemostasis unit based on the change value of the air pressure and the change value of the physiological parameter further comprises:
judging whether the determined air pressure adjusting value is larger than a preset air pressure value or not;
and when the determined air pressure adjusting value is larger than the preset air pressure value, determining the air pressure adjusting value as the preset air pressure value.
7. The method of claim 1, further comprising:
responsive to a determination of a hemostasis mode of the pneumatic hemostasis device;
the auxiliary hemostatic function is started.
8. The method of claim 7, further comprising:
judging whether the auxiliary hemostasis function is finished or not;
when the auxiliary hemostasis function is not finished, judging the duration of air pressure hemostasis and/or judging whether the pressure of the hemostasis part meets corresponding preset conditions or not;
when the air pressure hemostasis duration and/or the pressure of the hemostasis part does not meet corresponding preset conditions, the air pressure of the hemostasis part is controlled through the pressure hemostasis unit.
9. The method of claim 1, further comprising:
judging whether the hemostasis part has hemorrhage or not;
when the hemostasis part is in bleeding, a bleeding alarm is sent out.
10. A pneumatic hemostasis device, comprising:
a pressure hemostasis unit near a hemostasis site and a physiological parameter monitoring unit far away from the hemostasis site;
the controller is connected with the pressure hemostasis unit and the physiological parameter monitoring unit;
a memory also communicatively coupled to the controller; wherein the memory stores instructions executable by the controller to cause the controller to perform the pneumatic hemostasis control method of any one of claims 1-9.
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