CN213697076U - Orthopedic tourniquet - Google Patents

Abstract

The utility model provides an orthopedic tourniquet, which relates to the technical field of orthopedic instruments and comprises a cuff, an air pump, a control module, a limb circumference measuring module and a display module; the cuff is connected with an air pump, and the air pump and the display module are respectively connected with the control module; the limb circumference measuring module is mounted on the upper edge or the lower edge of the limb contact surface of the cuff. The utility model discloses can measure the girth of patient's limbs to according to patient's limbs girth control pressurization intensity, the accuracy is high, simple structure, and the reliability is high.

Description

Orthopedic tourniquet

Technical Field

The utility model relates to the technical field of orthopedic instruments, in particular to an orthopedic tourniquet.

Background

The orthopedic tourniquet is a common four-limb treatment instrument in orthopedic surgery, is used for being installed on a diseased limb to temporarily block blood circulation of the diseased limb, furthest prevent bleeding of a wound, reduce bleeding amount in the surgery, enable the surgical field to be clear, form a bloodless area in the surgical operation, facilitate identification of microstructures such as tendons, nerves and the like, and improve the surgical efficiency and the surgical quality. When the orthopedic tourniquet is used, a doctor needs to set the compression size, generally, the compression of the upper limb exceeds 60kp, the compression of the lower limb does not exceed 80kp, the compression is too small, the hemostasis effect is poor, the compression is too large, and limb injury and disability are easily caused. At present, the pressurizing value is set manually or automatically, so that a doctor manually inputs the pressurizing value according to own experience, the pressurizing degree and the pressurizing time cannot be accurately controlled, and excessive pressurizing hemostasis is easy to occur; the existing automatic pressurizing tourniquet adjusts the pressurizing amount by detecting the blood pressure of a patient, and the pressurizing amount cannot be accurately controlled by the mode, for example, some patients are fat (limbs are also fat), the blood pressure is normal, and the pressurizing degree is often insufficient when the automatic pressurizing tourniquet is used; some patients are very thin (very thin limbs), but the blood pressure is high, and the pressurizing degree is often too high when the automatic tourniquet is used. It can be seen that the patient's fatness is related to the size of the compression, but no tourniquet is currently available that adjusts the size of the compression according to the patient's fatness.

SUMMERY OF THE UTILITY MODEL

The utility model provides an orthopedics tourniquet can measure the girth of patient's limbs to according to patient's limbs girth control pressurization intensity, the accuracy is high, simple structure, and the reliability is high.

The embodiment of the utility model provides an orthopedic tourniquet, which comprises a cuff, an air pump, a control module and a display module; the cuff is connected with an air pump, and the air pump and the display module are respectively connected with the control module; the limb circumference measuring module is mounted on the upper edge or the lower edge of the surface, which is in contact with the limb, of the cuff.

In an optional embodiment, the measuring device further comprises a circumference input module, the circumference measuring module is a flexible scale, and the circumference input module is connected with the control module.

In an alternative embodiment, the circumference measuring module comprises a plurality of pressure sensors, each pressure sensor being connected to the control module.

In an alternative embodiment, the pressure sensor is a membrane pressure sensor.

In an optional embodiment, the system further comprises a parameter input module, and the parameter input module is connected with the control module.

In an optional embodiment, the system further comprises an alarm module, and the alarm module is connected with the control module.

The utility model has the advantages that: the orthopedic tourniquet of the utility model comprises a circumference measuring module, the circumference measuring module is arranged on the cuff, and when the cuff is used, the circumference measuring module is adopted to measure the thickness of the limbs; thereby setting the pressure value of the orthopedic tourniquet according to the measurement result. The utility model discloses simple structure, accuracy are high.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.

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 embodiments or the technical solutions in 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 for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic diagram of the system of the present invention.

In the figure: 1-connecting pipe; 2, a shell; 3-parameter input module; 4-a wire; 10-a control module; 20, an air pump; 30-a display module; 40-a limb circumference measuring module; 41-a membrane pressure sensor; 50-cuff; 60-parameter input module; 70-alarm module.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

To facilitate understanding of the present embodiment, the following description will discuss an orthopedic tourniquet in detail by embodiments.

Referring to fig. 1 and 2, an embodiment of the present invention provides an orthopedic tourniquet, which includes a cuff 50, an air pump 20, a control module 10 and a display module 30; the cuff 50 is connected with the air pump 20, and the air pump 20 and the display module 30 are respectively connected with the control module 10; also included is a limb circumference measurement module 40, the limb circumference measurement module 40 being mounted on the upper or lower edge of the limb-contacting surface of the cuff 50.

Specifically, as shown in fig. 1, the cuff 50 is rectangular; the outer surface of the cuff 50 is provided with a magic tape, and the inside of the cuff is provided with an air bag; the cuff 50 is connected to the air pump 20 located inside the housing 2 through the connection tube 1 in fig. 1. The air pump 20 and the control circuit board are integrated in the housing 2, and the display module 30 is mounted on a panel of the housing 2. The display module 30 of the present embodiment employs an LCD1602 liquid crystal display, or an LCD code-breaking screen. The control module 10 may be an STM32F4 or other type of single chip microcomputer, such as AT89C 51. The air pump 20 is communicated with the air bag in the cuff 50 through the connecting pipe 1 to realize inflation and deflation; in addition, the connection tube is detachably connected to the air pump 20, so that the cuff 50 can be conveniently stored.

According to the operation experience of doctors, people with thinner limbs should set a smaller output pressure value of the air pump, and people with thicker limbs should set a larger output pressure value of the air pump. Therefore, the circumference of the affected limb is measured by the limb circumference measuring module 40 in the present embodiment, which is used as the basis for the pressure value adjustment of the air pump 20.

Since the upper limb is usually tied at one third of the upper arm and the lower limb is tied at the middle upper part of the thigh near the groin when the cuff 50 is worn on the affected limb, the cuff 50 should be worn on the basis of this as a standard in the embodiment to reduce the measurement error.

Preferably, the measuring device further comprises a circumference input module, the circumference measuring module is a flexible scale, and the circumference input module is connected with the control module 10.

Here, the limb circumference measuring module 40 of the present embodiment may be a manual measurement, such as installing a graduated tape on the upper edge or the lower edge of the cuff 50. The corresponding relation between the limb circumference of the patient and the output pressure value of the air pump can be determined in advance through experiments. When the medical staff wears the cuff 50 for the patient, the circumference of the affected limb is checked through the graduated flexible rule, so that the output pressure value required to be set is determined according to the corresponding relation obtained in advance.

In addition, a circumference input module (i.e., an input button) may be further disposed on the control panel, the medical staff inputs a circumference value through the circumference input module, and the control module 10 searches a pre-stored corresponding relationship table between the circumference of the limb and an output pressure value of the air pump after receiving the circumference value, so as to determine an output value of the air pump, send a control signal to the air pump 20, and control the air pump 20 to output a corresponding air pressure according to the determined output value of the air pump.

Further, the circumference measuring module includes a plurality of pressure sensors, each of which is connected to the control module 10.

Specifically, as shown in fig. 1, in the present embodiment, a plurality of pressure sensors are provided on the outer edge of the cuff 50. When in use, the medical staff wears the cuff 50 on the affected limb of the patient, and observes the position of the cuff 50 corresponding to the pressure sensor area after winding the affected limb for one circle from the initial position after winding the affected limb for the first circle or after finishing winding, and presses down the pressure sensor at the corresponding position; because each pressure sensor is connected with the control module 10, the control module 10 determines the circumference value of the limb after receiving the signal of the corresponding pressure sensor; and determines an output value of the air pump according to the perimeter value, and sends a control signal to the air pump 20 to control the air pump 20 to output a corresponding air pressure according to the determined output value of the air pump 20.

Preferably, the pressure sensor is a membrane pressure sensor 41.

Specifically, the thin film pressure sensor 41 has high sensitivity, strong adhesion, and bending resistance. It should be noted that, because the membrane pressure sensor 41 is sensitive to reaction, the cuff 50 needs to be bent when the cuff 50 is worn, which affects the output accuracy of the membrane pressure sensor 41; when the patient wears the cuff 50 in the lying position, the back side of the thigh can also press the edges of the cuff 50 and the cuff 50, and the output accurate value of the film pressure sensor 41 can also be influenced; that is, the above various usage scenarios all affect the output value of the film pressure sensor 41. Therefore, in practice, the effective value of the thin film pressure sensor 41 should be determined through a limited number of experiments; and the zero setting mode should be set after the patient wears the cuff 50, that is, the output value of the current membrane pressure sensor 41 is cleared. So as to accurately determine the value of the corresponding membrane pressure sensor 41 pressed down by the medical staff.

As shown in fig. 1, in the embodiment, the membrane pressure sensors 41 are disposed at both the upper edge and the lower edge of the cuff 50 for convenient use. When the membrane pressure sensors 41 are installed, since each membrane pressure sensor 41 is connected to the control module 10 and there are too many wires, if the wires are installed in the middle area of the cuff 50, the scaling of the air cells in the cuff 50 may affect the service life of the wires, and therefore, as shown by the black line area in fig. 1, the wires 4 of the present embodiment are disposed at the upper and lower edges of the cuff 50.

Further, in order to prolong the service life of the lead, the present embodiment further embeds a hose in the edge of the cuff 50, through which the lead passes out of the cuff 50.

Optionally, as shown in fig. 1, a parameter input module 3 is further included, and the parameter input module 3 is connected to the control module 10.

Here, the parameter input module 3 may input at least one of the blood pressure value, height value, weight value, etc. reference values, and further adjust the output pressure value of the air pump by referring to the blood pressure value, height value, weight value, etc. of the patient. During specific implementation, the corresponding relation between the blood pressure value, the height value, the weight value and the output pressure value of the air pump of the patient can be determined through experiments, the medical staff determines to input the reference value through the parameter input module 3 arranged on the control panel, and the control module adjusts the output pressure value of the air pump according to the corresponding relation.

It should be noted that the parameter input module 3 of the present embodiment may also be designed integrally with the circumference input module, that is, only one input module is provided, and the input module is used to input parameters such as circumference of the affected limb, blood pressure value, height value, and weight value.

Optionally, an alarm module 70 is further included, the alarm module 70 being connected to the control module.

Specifically, the pressurizing time of the affected limb cannot exceed a certain value, such as 90 minutes; therefore, the present embodiment is further provided with an alarm module 70 to make an audible alarm (or audible and visual alarm) between or at the time of arrival between the pressurizations.

In the description of the embodiments of the present invention, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the technical solution of the present invention, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: those skilled in the art can still modify or easily conceive of changes in the technical solutions described in the foregoing embodiments or make equivalent substitutions for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (6)

1. An orthopedic tourniquet is characterized by comprising a cuff, an air pump, a control module, a limb circumference measuring module and a display module; the cuff is connected with an air pump, and the air pump and the display module are respectively connected with the control module; the limb circumference measuring module is mounted on the upper edge or the lower edge of the limb contact surface of the cuff.

2. The orthopedic tourniquet of claim 1, further comprising a circumference input module, wherein the circumference measuring module is a graduated tape, and wherein the circumference input module is coupled to the control module.

3. The orthopedic tourniquet of claim 1, wherein the circumference measurement module comprises a plurality of pressure sensors, each pressure sensor being connected to the control module.

4. The orthopedic tourniquet of claim 3, wherein the pressure sensor is a thin film pressure sensor.

5. The orthopedic tourniquet of claim 1, further comprising a parameter input module coupled to the control module.

6. The orthopedic tourniquet of claim 1, further comprising an alarm module coupled to the control module.

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