An electric pneumatic hemostatic device

Abstract

The utility model provides an electric pneumatic hemostatic device, including an electric pneumatic hemostatic instrument body, an air circuit connection hose and a tourniquet. The electric pneumatic hemostatic instrument body is provided with a display, a controller, an air pump assembly, a photoelectric blood oxygen saturation probe, an air circuit connection interface and a probe connection interface. The display and the air pump assembly are respectively electrically connected to the controller. The photoelectric blood oxygen saturation probe is used to obtain the blood oxygen pulse signal of the distal end of the patient's limb. A pressure sensor is provided in the tourniquet. The pressure sensor is used to obtain the limb pulse signal of the patient wearing the tourniquet. The number of tourniquets is at least two, and each tourniquet is connected to an air pump assembly through an air circuit connection hose and an air circuit connection interface in turn. The utility model is convenient for reminding the operator to adjust the tourniquet pressure setting in time to reduce safety risks; ensure that the limb of the patient wearing the tourniquet has a trace amount of bleeding, and avoid the risk of limb ischemic necrosis.

Description

Technical Field

[0001] The utility model relates to a hemostatic device, in particular to an electric pneumatic hemostatic device, belonging to the technical field of medical equipment. Background Art

[0002] The electric pneumatic hemostatic device is a medical orthopedic surgical device that uses air pressure to act on the pneumatic tourniquet and is used for compression hemostasis during surgery on the patient's limbs.

[0003] The electric pneumatic hemostatic device of the prior art mainly includes an air pressure pump for providing air pressure, an electromagnetic valve for air intake and air discharge control, a pressure sensor, an internal air circuit connecting pipeline, an internal power supply and other air circuit components, as well as an electronic control circuit and a display and controller. The device generally has the basic function of setting the working air pressure and time, and pressurizes the independent external binding type air pressure tourniquet tied to the patient's limbs to block the blood flow of the patient's limbs, thereby achieving the hemostatic effect.

[0004] Based on the individual differences of patients, different tourniquet air pressure settings are required. If the pressure setting is too low, it will cause poor hemostasis or bleeding in the surgical field. If the hemostasis pressure setting is too high, it will cause irreversible damage to the patient's limbs, blood vessels, nerves, muscles, skin and other tissues. In addition, during the operation, it is also necessary to display or warn the operator according to the blood oxygen pulse data of the patient's surgical limb to avoid the risk of limb necrosis caused by prolonged limb surgical hypoxia. Therefore, before the operation, it is necessary to use an independent blood pressure testing device to test the patient's blood pressure to determine the surgical indications and select the estimated air pressure value. During the operation, it is also necessary to use other independent medical devices to test the blood oxygen value of the surgical limb where the blood flow of the patient is blocked during the operation, and to conduct a time warning of long-term blood stagnation to prevent further possible limb hypoxia and necrosis. However, the electric pneumatic hemostatic device of the prior art lacks a blood pressure testing function and does not have the function of obtaining limb occlusion pressure data. Therefore, the operator needs to use multiple devices in conjunction with the operation, which is cumbersome to operate and has a certain lag in patient condition feedback, which increases the safety risk. Utility Model Content

[0005] Based on the above background, the purpose of the present invention is to provide an electric pneumatic hemostatic device to solve the problems described in the background technology.

[0006] In order to achieve the above-mentioned utility model purpose, the utility model provides the following technical solutions:

[0007] An electric pneumatic hemostatic device comprises an electric pneumatic hemostatic instrument body, an air circuit connecting hose and a tourniquet, wherein the electric pneumatic hemostatic instrument body is provided with a display, a controller, an air pump assembly, a photoelectric blood oxygen saturation probe, an air circuit connecting interface and a probe connecting interface, wherein the display and the air pump assembly are electrically connected to the controller respectively, the photoelectric blood oxygen saturation probe is electrically connected to the controller via the probe connecting interface, the photoelectric blood oxygen saturation probe is used to obtain a blood oxygen pulse signal at the distal end of a patient's limb, a pressure sensor is provided in the tourniquet, the pressure sensor is electrically connected to the controller, the pressure sensor is used to obtain a limb pulse signal at the part where the patient wears the tourniquet, the number of the tourniquets is at least two, the number of the air pump assemblies, the air circuit connecting interface and the air circuit connecting hose are respectively matched with the number of the tourniquets, and each tourniquet is connected to an air pump assembly via an air circuit connecting hose and an air circuit connecting interface in turn.

[0008] Preferably, the air pump assembly includes an air pressure pump, an air intake solenoid valve and an air discharge solenoid valve. The air pressure pump is connected to the air circuit connection interface through the air intake solenoid valve, and the air discharge solenoid valve is connected to the air circuit connection interface. The air pressure pump, the air intake solenoid valve and the air discharge solenoid valve are electrically connected to the controller respectively.

[0009] Preferably, the gas circuit connection interface is a plug-in connection interface or a threaded connection interface.

[0010] Preferably, the controller includes a processor, a memory, a digital-to-analog conversion module and an I / O interface.

[0011] Preferably, the tourniquet comprises a tourniquet airbag, one end of the tourniquet airbag is provided with a hair buckle, and the other end of the tourniquet airbag is provided with a barbed buckle for detachably connecting with the hair buckle.

[0012] Preferably, one end of the air circuit connecting hose is fixedly connected to the tourniquet airbag and communicated with the interior of the tourniquet airbag, and the other end of the air circuit connecting hose is provided with a hose plug for detachably connecting to the air circuit connecting interface.

[0013] Compared with the prior art, the utility model has the following advantages:

[0014] The utility model discloses an electric pneumatic hemostatic device, which converts limb pulse signal analysis obtained by a pressure sensor into blood pressure data through a controller, and converts limb distal blood oxygen pulse signal analysis obtained by a photoelectric blood oxygen saturation probe into limb occlusion pressure data. The controller transmits the blood pressure data and the limb occlusion pressure data to a display for interaction with the operator, so as to remind the operator to adjust the tourniquet pressure setting in time and reduce safety risks. There are at least two tourniquets, and the cycle time can be set by the controller to perform inflation and deflation conversion of different tourniquets, thereby ensuring that there is a small amount of bleeding in the limb where the patient wears the tourniquet, and avoiding the risk of limb ischemic necrosis. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0016] Figure 1 It is a structural schematic diagram of an electric pneumatic hemostatic device of the utility model;

[0017] Figure 2 This is a schematic diagram of the principle of an electric pneumatic hemostatic device of the utility model;

[0018] Figure 3 It is a schematic diagram of the structure of the tourniquet in the utility model;

[0019] In the figure: 1. Electric pneumatic hemostatic instrument body; 2. Air circuit connecting hose; 3. Tourniquet; 101. Display; 102. Controller; 103. Photoelectric blood oxygen saturation probe; 104. Air circuit connecting interface; 105. Probe connecting interface; 106. Air pressure pump; 107. Air inlet solenoid valve; 108. Air discharge solenoid valve; 201. Hose plug; 301. Pressure sensor; 302. Tourniquet airbag; 303. Hair buckle; 304. Barb buckle. DETAILED DESCRIPTION

[0020] The technical solution of the utility model is further described in detail below through specific embodiments and in combination with the accompanying drawings. It should be understood that the implementation of the utility model is not limited to the following embodiments, and any form of modification and / or change made to the utility model will fall within the protection scope of the utility model.

[0021] In the present utility model, unless otherwise specified, all parts and percentages are weight units, and the equipment and raw materials used can be purchased from the market or are commonly used in the field. The methods in the following embodiments, unless otherwise specified, are conventional methods in the field. The components or equipment in the following embodiments, unless otherwise specified, are universal standard parts or components known to those skilled in the art, and their structures and principles are known to those skilled in the art through technical manuals or conventional experimental methods.

[0022] The following is a detailed description of the embodiments of the present invention in conjunction with the accompanying drawings. In the following detailed description, for ease of explanation, many specific details are described to provide a comprehensive understanding of the embodiments of the present invention. However, one or more embodiments may also be implemented by those skilled in the art without these specific details.

[0023] like Figure 1-3 As shown, an embodiment of the utility model discloses an electric pneumatic hemostatic device, including an electric pneumatic hemostatic instrument body 1, an air circuit connecting hose 2 and a tourniquet 3. The electric pneumatic hemostatic instrument body 1 is provided with a display 101, a controller 102, an air pump assembly, a photoelectric blood oxygen saturation probe 103, an air circuit connecting interface 104 and a probe connecting interface 105. The display 101 and the air pump assembly are electrically connected to the controller 102 respectively. The photoelectric blood oxygen saturation probe 103 is electrically connected to the controller 102 through the probe connecting interface 105, and the photoelectric blood oxygen saturation probe 103 is used to obtain the blood oxygen pulse signal of the distal end of the patient's limb. A pressure sensor 301 is provided in the tourniquet 3, and the pressure sensor 301 is electrically connected to the controller 102, and the pressure sensor 301 is used to obtain the limb pulse signal of the patient wearing the tourniquet 3.

[0024] There are two tourniquets 3 acting on the patient's limbs. The number of air pump components, air circuit connection interfaces 104 and air circuit connection hoses 2 respectively matches the number of tourniquets 3, and each tourniquet 3 is connected to an air pump component through an air circuit connection hose 2 and an air circuit connection interface 104 in turn. Of course, the number of tourniquets 3 can also be increased according to actual application needs.

[0025] Specifically, the air pump assembly includes an air pressure pump 106, an air intake solenoid valve 107, and an air discharge solenoid valve 108. The air pressure pump 106 is connected to the air path connection interface 104 through the air intake solenoid valve 107, and the air discharge solenoid valve 108 is connected to the air path connection interface 104. The air pressure pump 106, the air intake solenoid valve 107, and the air discharge solenoid valve 108 are electrically connected to the controller 102 respectively.

[0026] Specifically, the gas circuit connection interface 104 is a plug-in connection interface or a threaded connection interface. Both types of interfaces can achieve quick connection and separation between the gas circuit connection hose 2 and the gas circuit connection interface 104.

[0027] Specifically, the controller 102 includes a processor, a memory, a digital-to-analog conversion module, and an I / O interface.

[0028] Specifically, the tourniquet 3 includes a tourniquet airbag 302, one end of which is provided with a hair buckle 303, and the other end of the tourniquet airbag 302 is provided with a thorn buckle 304 for detachably connecting the hair buckle 303. The adhesive tape arrangement of the hair buckle 303 and the thorn buckle 304 enables the tourniquet airbag 302 to be tied and fixed.

[0029] Specifically, one end of the air circuit connecting hose 2 is fixedly connected to the tourniquet airbag 302 and communicated with the interior of the tourniquet airbag 302 , and the other end of the air circuit connecting hose 2 is provided with a hose plug 201 for detachably connecting to the air circuit connecting interface 104 .

[0030] When in use, the controller 102 controls the air pump 106 to work, and the air pump 106 starts to inflate. The tourniquet 3 is inflated to a specific pressure through the air inlet solenoid valve 107 and the air circuit connection interface 104. The pressure is usually set to be slightly higher than the systolic pressure of a normal human body according to the principle of a general sphygmomanometer. The deflation solenoid valve 108 is used to slowly reduce the air circuit pressure, and the pressure sensor 301 obtains the limb pulse signal of the patient wearing the tourniquet 3. The signal is analyzed and processed by the controller 102, so that the operator can know the SBP systolic pressure data of the patient, so that the operator can analyze and select the pressure value of the tourniquet 3 to be used. The photoelectric blood oxygen saturation probe 103 obtains the patient's blood oxygen and blood flow waveform signal at the distal end of the patient's limb (fingers or toes) according to the general principle of photoelectric blood oxygen probes, such as the principle of photoelectric volumetric labeling. The signal is analyzed and processed by the controller 102, so that the operator can know the patient's LOP limb occlusion pressure data, thereby giving the operator a prompt or warning. Since two tourniquets 3 are provided, when the controller 102 is set with the same pressure and time, a working mode in which each air pump assembly controls the tourniquet airbag 302 of each tourniquet 3 to alternately inflate and deflate can be provided.

[0031] Therefore, the electric pneumatic hemostatic device is convenient for the operator to adjust the pressure setting of the tourniquet 3 in time, reduce safety risks, and can ensure that the patient's limbs where the tourniquet 3 is worn are slightly bleeding during use, avoiding the risk of limb ischemic necrosis.

[0032] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core ideas of the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. An electric pneumatic hemostatic device, characterized in that: The electric pneumatic hemostatic device comprises an electric pneumatic hemostatic device body (1), an air circuit connecting hose (2) and a tourniquet (3); the electric pneumatic hemostatic device body (1) is provided with a display (101), a controller (102), an air pump assembly, a photoelectric blood oxygen saturation probe (103), an air circuit connecting interface (104) and a probe connecting interface (105); the display (101) and the air pump assembly are respectively electrically connected to the controller (102); the photoelectric blood oxygen saturation probe (103) is electrically connected to the controller (102) via the probe connecting interface (105); the photoelectric blood oxygen saturation probe (103) is electrically connected to the controller (102) via the probe connecting interface (105); The tourniquet (3) is provided with a pressure sensor (301) which is electrically connected to the controller (102) and is used to obtain the pulse signal of the limb at the distal end of the patient's limb. The number of the tourniquets (3) is at least two, and the number of the air pump components, the air path connection interfaces (104) and the air path connection hoses (2) respectively matches the number of the tourniquets (3). Each tourniquet (3) is connected to an air pump component via an air path connection hose (2) and an air path connection interface (104) in turn.

2. The electric pneumatic hemostatic device according to claim 1, characterized in that: The air pump assembly comprises an air pressure pump (106), an air intake solenoid valve (107) and an air discharge solenoid valve (108); the air pressure pump (106) is connected to the air circuit connection interface (104) via the air intake solenoid valve (107); the air discharge solenoid valve (108) is connected to the air circuit connection interface (104); the air pressure pump (106), the air intake solenoid valve (107) and the air discharge solenoid valve (108) are respectively electrically connected to the controller (102).

3. The electric pneumatic hemostatic device according to claim 1, characterized in that: The gas circuit connection interface (104) is a plug-in connection type interface or a threaded connection type interface.

4. The electric pneumatic hemostatic device according to claim 1, characterized in that: The controller (102) includes a processor, a memory, a digital-to-analog conversion module and an I / O interface.

5. The electric pneumatic hemostatic device according to claim 1, characterized in that: The tourniquet (3) comprises a tourniquet airbag (302), one end of the tourniquet airbag (302) is provided with a hair buckle (303), and the other end of the tourniquet airbag (302) is provided with a spike buckle (304) for detachably connecting with the hair buckle (303).

6. The electric pneumatic hemostatic device according to claim 5, characterized in that: One end of the air circuit connection hose (2) is fixedly connected to the tourniquet airbag (302) and communicates with the interior of the tourniquet airbag (302), and the other end of the air circuit connection hose (2) is provided with a hose plug (201) for detachably connecting to the air circuit connection interface (104).

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