Pulse pressing device for nursing

Abstract

A pulse pressing device for nursing comprises a storage battery, a wireless remote control mechanism, a pulse pressing belt, a fixing shell, a pulse pressing mechanism, a time control circuit, a wireless receiving circuit and a control circuit. The tourniquet is mounted on the wrist of a patient; the tourniquet mechanism comprises an electric push rod and a pressing plate, the upper end of the electric push rod is installed in a fixing shell, the lower end of a movable column of the electric push rod and the upper end of the pressing plate are installed together, and the fixing shell is installed outside the upper end of the tourniquet; the storage battery time control circuit, the wireless receiving circuit and the control circuit are installed in the fixing shell and electrically connected with the power input end of the electric push rod. According to the utility model, pulse pressing operation can be carried out on a surgical incision of a patient at regular intervals, so that automatic control is realized; and the electric push rod can be controlled in a wireless mode to drive the pressing plate to move upwards to press the pulse without manual approaching operation according to needs (some patients have good blood coagulation functions, and the pulse pressing time can be shortened through the operation), so that convenience is brought to nursing personnel, and the working efficiency of the nursing personnel is improved.

Description

Technical Field

[0001] This utility model relates to the field of nursing equipment technology, and in particular to a pulse pressure device used in nursing care. Background Technology

[0002] In clinical medicine, coronary angiography is a common examination method, mainly used to detect whether a patient's coronary arteries have coronary heart disease and the degree of blockage. It is a relatively safe and reliable invasive diagnostic technique and is considered the "gold standard" for diagnosing coronary heart disease. During the procedure, the patient lies flat on the catheterization bed in the catheterization lab. First, disinfection and towel preparation are performed, followed by local anesthesia. After anesthesia, a wire is used to puncture the radial artery in the wrist. Once the puncture is successful, a sheath is placed at the puncture site, through which a guidewire is delivered, thus creating a pathway. The angiography catheter is then guided along the guidewire through the aorta to the aortic valve. A sufficient injection of contrast agent allows for full visualization under X-ray, revealing the degree and location of stenosis in the coronary arteries.

[0003] After actual testing, due to the relatively large opening at the puncture site, a tourniquet mechanism needs to be applied to the wrist to apply firm pressure and prevent blood leakage. During the tourniquet application, nursing staff need to periodically loosen and adjust the position of the tourniquet plate and the surgical site to prevent prolonged excessive pressure on the surgical site, which could cause skin damage or impaired blood flow leading to unforeseen complications. Because the existing tourniquet mechanism requires manual adjustment by medical staff at regular intervals in the ward, it is inconvenient for nursing staff and increases their workload. Therefore, it is essential to provide a tourniquet device that offers convenience to nursing staff and reduces their workload. Utility Model Content

[0004] In order to overcome the shortcomings of existing technologies, such as the lack of a suitable automatic pulse pressure device as described in the background, this utility model provides a pulse pressure device for nursing use that, under the combined action of relevant mechanisms and circuits, can automatically perform pulse pressure operations on the patient's surgical site at regular intervals, and nursing staff can also control the pulse pressure wirelessly as needed, thereby bringing convenience to nursing staff and correspondingly improving their work efficiency.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A pulse-pressure device for nursing use includes a battery, a wireless remote control mechanism, a pulse-pressure band, and a fixing shell. It is characterized by further comprising a pulse-pressure mechanism, a timing circuit, a wireless receiving circuit, and a control circuit. The pulse-pressure band has an open structure with multiple fixing holes at one lower end and a positioning rod and a limiting ring at the other lower end. One lower end of the pulse-pressure band is fitted inside the limiting ring and fixed by the positioning rod, and is installed on the patient's wrist. The pulse-pressure mechanism includes an electric push rod and a pressure plate. The upper end of the electric push rod is installed inside the fixing shell, and the lower part of its movable column is located inside the upper part of the pulse-pressure band. The lower end of the movable column and the upper end of the pressure plate are installed together. The fixing shell is installed outside the upper end of the pulse-pressure band. The battery, timing circuit, wireless receiving circuit, and control circuit are installed inside the fixing shell. The signal output terminal of the wireless receiving circuit is electrically connected to the signal input terminal of the control circuit. The signal output terminal of the timing circuit is electrically connected to the signal input terminal of the wireless receiving circuit. The power output terminal of the control circuit is electrically connected to the power input terminal of the electric push rod.

[0007] Furthermore, the lower end of the pressure plate has an arc shape that matches the arc of the human wrist, and a protective pad is installed at the lower end of the pressure plate.

[0008] Furthermore, the upper end of the pressure plate has a thread seat, the lower end of the movable column has an external thread, and the movable rod and the pressure plate are connected together by threads.

[0009] Furthermore, the timing circuit is a timing switch; the wireless receiving circuit includes a wireless receiving circuit module and a resistor that are electrically connected, with the signal output terminal of the wireless receiving circuit module connected to one end of the resistor.

[0010] Furthermore, the control circuit includes a time relay module and a relay that are electrically connected. The positive power input terminal of the time relay module is connected to the positive control power input terminal of the relay. The negative power input terminal and negative control power input terminal of the time relay module are connected to the negative power input terminal and negative control power input terminal of the relay. The positive power output terminal of the time relay module is connected to the positive power input terminal of the relay.

[0011] Compared with the prior art, the advantages of this utility model are: (1) When this utility model is used, it is worn on the outside of the patient's wrist. Under the action of the time control circuit and the control circuit, the electric push rod can drive the pressure plate to automatically perform pulse pressure operation on the patient's surgical site at certain intervals (the pressure plate moves upward to reduce pressure), thus achieving the purpose of automatic control; (2) Under the action of the wireless receiving circuit and the control circuit, the nursing staff can also control the electric push rod to drive the pressure plate to move upward to press the pulse wirelessly without manual approach operation (some patients have good coagulation function, so the pulse pressure time can be reduced through this operation), which brings convenience to the nursing staff and improves the work efficiency of the nursing staff accordingly. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0013] Figure 1 This is a schematic diagram of the overall structure and a partially enlarged part of the structure of this utility model.

[0014] Figure 2 This is the circuit diagram of this utility model. Detailed Implementation

[0015] Figure 1 , 2 As shown, a pressure device for nursing use includes a battery G1, a wireless remote control mechanism E4 (carried by medical staff), a charging socket CT, power switches S1 and S2, a fixing shell 1, and a pressure band 2. It also includes a pressure mechanism, a timing circuit 3, a wireless receiving circuit 4, and a control circuit 5. The lower part of the annular pressure band 2 has an open structure. Multiple fixing holes 21 are spaced horizontally at certain intervals on the inner side of the lower left portion of the annular pressure band 21. A metal positioning rod 22 is installed at the lower end of the middle of the inner side of the lower right portion of the annular pressure band 21, and a limiting ring 23 is movably fitted on the inner side of the lower right portion. The inner side of the lower left portion of the annular pressure band 21 is fitted under the inner side of the limiting ring 23. The positioning rod 22 is inserted into one of the fixing holes 21 to loop the pressure band 2 around the patient's wrist (the above method is consistent with the way a watch is worn on the user's wrist; the positioning rod 22 and the fixing holes 21). (Separation allows the lower end of the pressure band to separate); the upper middle part of the annular pressure band 2 has a through hole 24, the pressure mechanism includes a miniature electric push rod M and an arc-shaped pressure plate 5, the upper end of the cylinder of the electric push rod M is vertically installed in the upper middle part of the fixed shell 1 by bolts, and its movable column is located at the lower outer end of the upper part of the flexible pressure band 2 through the through hole 24, the lower end of the movable column and the upper end of the pressure plate 5 are installed together; the lower end is an open structure fixed shell 1 (a fixed plate with multiple openings on the outer side of the lower end, the fixed shell 1 is sewn to the upper end of the pressure band 2 by the four fixed plate openings with thread, and the fixed shell 1 can also be installed to the upper end of the pressure band 2 by adhesive bonding) installed outside the upper middle part of the pressure band 2; the battery G1, charging socket CT, power switch, time control circuit 3, wireless receiving circuit 4, and control circuit 5 are installed on the circuit board inside the fixed shell 1.

[0016] Figure 1 , 2As shown, the lower end of the pressure plate 5 has an arc that matches the arc of the upper end of the radial artery at the wrist of the human body. A rubber protective pad is glued to the lower end of the pressure plate 5 (to prevent discomfort to the patient). There is a threaded seat 51 with internal threads on the outer side of the upper middle part of the pressure plate. The lower end of the electric push rod movable column has external threads. The movable rod and the pressure plate 5 are connected together via the external threads of the movable column and the internal threads of the threaded seat. The time control circuit is a finished time control switch E2; the wireless receiving circuit includes a wireless receiving circuit module E1 and a resistor R1 connected via circuit board wiring. The signal output terminal 3 of the wireless receiving circuit module E1 is connected to one end of the resistor R1. The control circuit includes a time relay module E3 and a relay K1 connected via circuit board wiring. Pin 1 of the positive power input terminal of time relay module E3 is connected to the positive control power input terminal of relay K1. Pins 2 and 4 of the negative power input terminal of time relay module E3 are connected to the negative power input terminal and negative control power input terminal of relay K1. Pin 9 of the positive power output terminal of time relay module E3 is connected to the positive power input terminal of relay K1. The two terminals of battery G1 and the two ends of charging socket CT (when battery G1 is depleted, the external 12V power charger plug is inserted into the charging socket to charge battery G1) are connected by wires. These wires are then connected in series via the first power switch S1 to the power input terminals 1 and 2 of the second power switch S2, the power input terminals of the time control circuit, the time control switch E2, the wireless receiver circuit module E2, the control circuit, and the time relay module E3. The signal output terminal of the wireless receiver circuit is also connected via wires. The other end of resistor R1 is connected to the signal input terminal of the control circuit and the positive trigger signal input terminal (pin 3) of the time relay module E3 via a wire. The signal output terminal of the time control circuit and pin 3 (pin 4 is connected to the negative terminal of the battery G1 or left floating) and the signal input terminal of the wireless receiving circuit are connected to one end of resistor R1 via a wire. The power output terminals (pins 3 and 4, pins 5 and 6) of the second power switch S2 are connected to the positive and negative and negative and positive and negative power input terminals of the electric push rod M via wires. The two normally open contacts of the power output terminal of the control circuit relay K1 are connected to the negative and positive and negative and power input terminals of the electric push rod M via wires.

[0017] Figure 1 , 2As shown, when using this new device, the pressure band 2 is placed on the outside of the patient's wrist, with the lower end of the pressure plate 5 aligned with the position where pressure is needed at the surgical site. After the nursing staff turns on the power switch S2 to the left, the positive and negative power input terminals of the electric push rod M are energized. After it operates, the movable column pushes the pressure plate 5 downwards and presses it firmly against the position where pressure is needed at the surgical site. Then, the nursing staff turns off the power switch S2. (This invention is for multiple uses. To prevent cross-infection, there are several sets of pressure plates 5. Each patient uses one set of pressure plates. Before each use, the pressure plate is threaded onto the lower end of the movable column of the electric push rod. The entire device is disinfected with alcohol or other disinfectants before use.) After turning on the power switch S1, the time control circuit, the wireless receiving circuit, and the control circuit are energized and operate. After the time control circuit E2 is energized, its pins 3 and 4 will output power for a certain period of time at regular intervals (for example, output power for 1 second every 20 minutes, the actual time is adjustable) to one end of the resistor R1 (current limiting and voltage reduction). Thus, the positive trigger signal input terminal of the time relay module E3 will be input with a positive trigger signal at regular intervals. In practice, nursing staff can press the first button D1 of the portable wireless remote control mechanism E4 without having to manually touch it on-site. The wireless remote control mechanism E4 will then be powered on and emit the first wireless closed signal. After receiving the signal, the wireless receiving circuit module E1 will output a high-level signal from pin 3. This signal will be limited and reduced by resistor R1 and then enter the positive trigger signal input pin 3 of the time relay module E3.

[0018] Figure 1 , 2As shown, whether it's the output signal from the time control circuit E2 or the output signal from the wireless receiving circuit module to the positive trigger signal input pin 3 of the time relay module E3, the time relay module E3, under the action of its internal circuit, will output a high-level signal (e.g., 3 seconds, the actual time is adjustable) to the positive power input terminal of the relay K1 for a period of time. The relay K1 is energized and its control power input terminal and normally open contact terminal close. In this way, the negative and positive power input terminals of the electric push rod M11 will be energized, and its movable rod will drive the pressure plate 5 to move upward a certain distance (e.g., 2 mm). Through the above, under the action of the time control circuit and the control circuit, the electric push rod can drive the pressure plate to automatically reduce the pressure on the patient's surgical site at certain intervals, achieving the purpose of automatic control. Under the action of the wireless receiving circuit and the control circuit, nursing staff can also wirelessly control the electric push rod to drive the pressure plate to move upward to reduce the pressure as needed without manual approach (some patients have good coagulation function, and this operation can reduce the pressure time), thus bringing convenience to nursing staff and correspondingly improving their work efficiency. In this new invention, before or after applying pressure to the pulse, the nurse can turn on the power switch S2 to the right. The positive and negative power input terminals of the electric push rod M are energized. After it starts working, the movable column drives the pressure plate 5 to move upward and no longer presses on the position where pressure is needed at the surgical site. Subsequently, the pressure band can be removed from the patient's wrist or a pressure band can be installed (some patients have a large outer diameter of wrist and need to adjust the height of the high pressure plate).

[0019] Figure 2 In the component box, battery G1 is a 12V / 4Ah lithium battery; resistor R1 has a resistance of 1K; time control switch E2 is a small timer switch of model CN101A, which has two power input terminals, two power output terminals, and seven setting buttons. By operating multiple buttons, the output time of the two power output terminals can be set; the handles of power switches S1 and S2 are located outside the two openings at the top of the component box; the wireless control mechanism E4 and the wireless receiving circuit module E1 are finished wireless transmitting and receiving components of model WF100 (with the same working principle as the vehicle wireless transmitting and receiving module, and a wireless signal transmission and reception distance of 100 meters). The time relay module E3 is a small time controller module, model YYC-2S. This module has two power input terminals (pins 1 and 2), two trigger signal input terminals (pins 3 and 4), a setting button (pin 5), an emergency stop button (pin 6), a time increment button (pin 7), a time decrement button (pin 8), and a normally open power output terminal (pin 9). Operating the time increment and decrement buttons allows for setting a positive power supply to be output at the normally open power output terminal for the desired time period. Once the time is set, the time relay module will start timing after each trigger signal input. The electric actuator M is a miniature reciprocating electric telescopic rod, model LA-T8, with a movable column length of 1.5 cm; the relay K1 is a DC12V model.

[0020] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model.

[0021] Furthermore, it should be understood that although this specification describes the embodiments, the embodiments do not necessarily contain only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in the embodiments can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A pulse pressure device for nursing use, comprising a battery, a wireless remote control mechanism, a pulse pressure cuff, and a fixing housing, characterized in that, It also includes a pulse compression mechanism, a timing circuit, a wireless receiving circuit, and a control circuit. The pulse compression band has an open structure with multiple fixing holes at one end of the lower part and a positioning rod and a limiting ring at the other end. One end of the lower part of the pulse compression band is fitted inside the limiting ring and fixed by the positioning rod, and is installed on the patient's wrist. The pulse compression mechanism includes an electric push rod and a pressure plate. The upper end of the electric push rod is installed inside the fixed housing, and the lower part of its movable column is located inside the upper part of the pulse compression band. The lower end of the movable column and the upper end of the pressure plate are installed together. The fixed housing is installed outside the upper end of the pulse compression band. The battery, timing circuit, wireless receiving circuit, and control circuit are installed inside the fixed housing. The signal output terminal of the wireless receiving circuit is electrically connected to the signal input terminal of the control circuit. The signal output terminal of the timing circuit is electrically connected to the signal input terminal of the wireless receiving circuit. The power output terminal of the control circuit is electrically connected to the power input terminal of the electric push rod.

2. The pulse pressure device for nursing use according to claim 1, characterized in that, The lower end of the pressure plate has an arc shape that matches the curvature of the human wrist, and a protective pad is installed at the lower end of the pressure plate.

3. The pulse pressure device for nursing use according to claim 1, characterized in that, The upper end of the pressure plate has a threaded seat, the lower end of the movable column has an external thread, and the movable rod and the pressure plate are connected together by the thread.

4. The pulse pressure device for nursing use according to claim 1, characterized in that, The time control circuit is a time control switch; the wireless receiving circuit includes a wireless receiving circuit module and a resistor that are electrically connected, with the signal output terminal of the wireless receiving circuit module connected to one end of the resistor.

5. The pulse pressure device for nursing use according to claim 1, characterized in that, The control circuit includes a time relay module and a relay that are electrically connected. The positive power input terminal of the time relay module is connected to the positive control power input terminal of the relay. The negative power input terminal and negative control power input terminal of the time relay module are connected to the negative power input terminal and negative control power input terminal of the relay. The positive power output terminal of the time relay module is connected to the positive power input terminal of the relay.

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