Narcotic continuous infusion alarm device

Abstract

The application belongs to the technical field of medical equipment and relates to a sustained anesthetic injection alarm device, which comprises a box body, a sleeve and a turbidity detector. A central control panel, an AD converter, a buzzer and a collector are arranged in the box body. The sleeve is arranged on one side of the box body and is buckled by two openable hoop rings. The two hoop rings are used for clamping the infusion tube when buckled into the sleeve. A lockable buckle structure is arranged between the two hoop rings. When the buckle structure is closed, the two hoop rings buckled together are locked to prevent them from being unfolded. When the buckle structure is opened, the two hoop rings can be opened. The turbidity detector is installed on the inner side of the sleeve and is used for detecting the turbidity of the liquid in the infusion tube. The alarm device can detect the anesthetic reflux caused by the equipment failure when the micro pump continuously anesthetizes and gives medicine, and timely alarm and remind the anesthesiologist to check the infusion path, so that intraoperative awareness can be reduced.

Description

Technical Field

[0001] This invention belongs to the field of medical device technology, and in particular relates to an alarm device for continuous anesthetic pump infusion. Background Technology

[0002] In recent years, the issue of intraoperative awareness in patients under general anesthesia has received increasing attention. Intraoperative awareness can lead to serious emotional and mental health problems, namely post-traumatic stress disorder (PTSD), affecting the patient's quality of life. How to prevent intraoperative awareness has become an important research topic in the world of anesthesiology. Due to the failure of the anesthesia pump infusion line, anesthetic drugs refluxed into the infusion bottle. When the turbid liquid in the infusion bottle was found, the patient had already shown suspicious intraoperative conditions such as sweating all over the body, high blood pressure, and rapid heart rate. Retrospective analysis of most patients with intraoperative awareness found that the relevant factors were: (1) equipment failure of the anesthesia drug delivery system; (2) long operation time and shallow anesthesia, such as obstetric surgery, cardiac surgery, and emergency trauma surgery; (3) increased demand for anesthetic drugs in some patients, such as chronic alcoholism and previous use of anesthetic drugs. In the view of experienced anesthesiologists, the latter two can be prepared before the operation, and timely deepening of the anesthetic drug infusion during the operation can quickly avoid intraoperative awareness. However, intraoperative awareness resulting from micro-infusion pump malfunctions is difficult to eliminate in the short term. Even if anesthetic drugs are administered after anticipating potential intraoperative awareness, it may be difficult to avoid intraoperative awareness during the drug gap period. Therefore, a device capable of monitoring and promptly alarming is needed to detect anesthetic pathway obstruction immediately, promptly informing the anesthesiologist to check the infusion pump pathway, and eliminating pathway malfunctions before the residual anesthetic effect wears off. To this end, we propose a continuous anesthetic infusion alarm device. Summary of the Invention

[0003] The purpose of this invention is to provide an alarm device for continuous anesthetic pump infusion, in order to solve the problem mentioned in the background art where the anesthetic reflux back into the infusion tubing or bottle during micro-pump injection is not detected in time, which easily leads to intraoperative awareness.

[0004] This invention is achieved through the following technical solution:

[0005] An alarm device for continuous infusion of anesthetic drugs includes a housing, a sleeve, and a turbidity detector;

[0006] The enclosure contains a central control board, an AD converter, a buzzer, and a data acquisition unit.

[0007] The sleeve is located on one side of the housing. The sleeve is formed by two openable and closable rings. When the two rings are fastened together, they are used to clamp the infusion tube. When the two rings are open, the infusion tube can be easily inserted into or removed from the inside of the rings. An openable and closable locking structure is provided between the two rings. When the locking structure is closed, it is used to lock the two rings together to prevent them from unfolding. When the locking structure is open, it allows the two rings to open.

[0008] The turbidity detector is installed inside the sleeve to detect the turbidity of the liquid in the infusion tube. The central control board is electrically connected to the turbidity detector, AD converter, buzzer, and data acquisition unit via power lines. When the turbidity detector detects turbidity in the infusion tube, it sends a data signal. The data acquisition unit can promptly summarize and collect the data signal sent by the turbidity detector. The AD converter can convert the collected data signal into information and transmit it to the central control board. The central control board can process the information and then trigger the buzzer to sound an alarm, indicating that there is a problem of anesthetic backflow in the infusion tube, reminding medical staff to deal with it in time.

[0009] Furthermore, the box body is composed of two hinged shells. When the two shells are fastened together, the box body is formed. The two hoop rings are respectively fixed to the outer side walls of the two shells and located away from the hinge side. When the two shells are fastened together to form the box body, the two hoop rings are fastened together to form the sleeve for clamping the infusion tube. When the locking structure is closed, it can lock the two shells and two hoop rings that are fastened together to prevent them from unfolding. When the locking structure is opened, it allows the two shells and two hoop rings to unfold outward.

[0010] Furthermore, the locking structure is provided with four buckles, each of which includes two matching fixing buckles, one of which is a male buckle and the other is a female buckle. Fixing buckles are installed on the left and right snapping edges at the top and bottom of the two rings. When the two rings are locked, the fixing buckles on the snapping edges of the two rings are connected in pairs to form a closed locking structure. The use of four locking structures can ensure that the infusion tube is stably clamped when the two rings are locked.

[0011] Furthermore, the turbidity detector is provided with a collar that can be fitted onto one of the fixing buckles. The collar is fitted onto the middle of one of the fixing buckles, so that the turbidity detector can be installed inside the collar. When the two collars are fastened together to form a sleeve to clamp and fix the infusion tube, the turbidity detector is located inside the sleeve, and the detection head of the turbidity detector faces the side with the infusion tube, so that it can be used to detect the turbidity of the liquid in the infusion tube.

[0012] Furthermore, the side wall of the enclosure is provided with several ventilation holes, which can promote air circulation inside and outside the enclosure and facilitate heat dissipation.

[0013] Furthermore, the buzzer inside the enclosure is installed at the ventilation holes, and the ventilation holes help to transmit the alarm sound of the buzzer more clearly.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] This alarm device can detect anesthetic reflux caused by equipment failure during continuous anesthesia administration via a micro-infusion pump and promptly issue an alarm, reminding the anesthesiologist to check the infusion route. This can reduce the incidence of intraoperative awareness. The alarm device has low production costs, is simple to manufacture, lightweight, and easy to fix in the infusion tubing during surgery. Compared to the high cost of neurophysiological monitoring and target-controlled infusion, this alarm device has significant advantages in clinical application, such as being cost-effective. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0017] Figure 1 This is a schematic diagram of the front view of the box when it is unfolded in this invention patent;

[0018] Figure 2 This is a top view of the sleeve fastening structure in this invention patent;

[0019] Figure 3 This is a schematic diagram of the ventilation holes on the side wall of the housing in this invention patent.

[0020] The components in the diagram are named as follows: 1. Housing; 2. Hoop; 3. Turbidity detector; 4. Collar; 5. Central control board; 6. AD converter; 7. Buzzer; 8. Data logger; 9. Fixing buckle; 10. Ventilation hole. Detailed Implementation

[0021] The embodiments of the technical solution of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the technical solution of the present invention and are therefore intended to limit the scope of protection of the present invention.

[0022] In the description of this application, it should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the present invention.

[0023] A continuous anesthetic pump alarm device, such as Figure 1 and Figure 2 As shown, it mainly consists of a housing, a sleeve, a locking structure, a turbidity detector 3, a central control board 5, an AD converter 6, a buzzer 7, and a data acquisition unit 8.

[0024] like Figure 1 and Figure 2 As shown, the enclosure is composed of two hinged shells 1, which are fastened together to form the enclosure. The central control board 5, AD converter 6, buzzer 7 and data collector 8 are all installed inside the enclosure.

[0025] In this embodiment, specifically, as follows: Figure 1 As shown, the central control board 5 and the AD converter 6 are both screwed onto the front inner wall of the left housing 1, and the buzzer 7 and the collector 8 are both screwed onto the front inner wall of the right housing 1. This arrangement helps to balance the gravity when the two housings 1 are fastened together to form a box. When the two housings 1 are fastened together to form a box, the central control board 5, the AD converter 6, the buzzer 7 and the collector 8 are all located inside the box and protected by the box.

[0026] like Figure 2 As shown, the sleeve is located on the right side of the box. The sleeve is formed by two openable and closable clamping rings 2. When the two clamping rings 2 are fastened into a sleeve, they are used to clamp the infusion tube. When the two clamping rings 2 are opened, it is easy to insert the infusion tube into the inside of the clamping rings 2 or to remove the infusion tube from the inside of the clamping rings 2.

[0027] In this embodiment, specifically, as follows: Figure 1 and Figure 2As shown, the two clamping rings 2 are respectively fixed (welded, screwed, or integrally formed) to the outer side walls of the two housings 1 and located away from the hinged side between the two housings 1. When the two housings 1 are fastened together to form the box, the two clamping rings 2 are fastened together to form the sleeve for clamping the infusion tube. It should be noted that after installing electronic devices in the box, the two housings 1 can also be screwed together. As an alternative, the two clamping rings 2 are hinged together, with one clamping ring 2 fixed to the side wall of one of the housings 1. The other clamping ring 2 can be rotated open to clamp the infusion tube inside. In this way, it is not necessary to rotate and open the two housings 1 during use.

[0028] The locking structure is disposed between the two hoop rings 2. When the locking structure is closed, it is used to lock the two hoop rings 2 that are fastened together to prevent them from unfolding. When the locking structure is open, it allows the two hoop rings 2 to open.

[0029] like Figure 1 and Figure 2 As shown, the locking structure is provided with four, and each locking structure includes two matching fixing buckles 9, one fixing buckle 9 being a male buckle and the other fixing buckle 9 being a female buckle. Fixing buckles 9 are installed on the left and right fastening edges at the top and the left and right fastening edges at the bottom of the two clamping rings 2. When the two clamping rings 2 are fastened, the fixing buckles 9 on the fastening edges of the two clamping rings 2 are connected in pairs to form a closed locking structure. The four locking structures can ensure that the infusion tube is stably clamped when the two clamping rings 2 are fastened.

[0030] In this embodiment, specifically, as follows: Figure 2 As shown, a total of eight fixing buckles 9 are installed on the top left and right snapping edges and the bottom left and right snapping edges of the two hoop rings 2. Four of the fixing buckles 9 are male buckles, and the other four are female buckles. This ensures that when the two hoop rings 2 are snapped together, the fixing buckles 9 on the snapping edges are matched in pairs, male and female. For example, as shown... Figure 2 As shown, female fasteners 9 are installed on the top left and right fastening edges and the bottom left and right fastening edges of one of the hoop rings 2, and male fasteners 9 are installed on the top left and right fastening edges and the bottom left and right fastening edges of the other hoop ring 2. When the two hoop rings 2 are fastened into a sleeve, the male fasteners 9 and female fasteners 9 between the two hoop rings 2 are matched and connected, which can lock the two shells 1 and the two hoop rings 2 together to prevent them from unfolding. When the two hoop rings 2 are pried open outward with two hands, the male fasteners 9 and female fasteners 9 between the two hoop rings 2 separate, and the two shells 1 and the two hoop rings 2 can be unfolded outward.

[0031] The male and female locking buckles 9 of the locking structure can be a matching sleeve and a rod. The rod is inserted into the sleeve and pressurized to create friction that prevents it from opening. Alternatively, the male and female locking buckles 9 can be a magnet and an iron sheet that can be magnetically connected. Or, the locking structure can be a self-locking snap fastener, which can be installed between two hoop rings 2 or between two housings 1. The locking structure includes, but is not limited to, the above-mentioned locking structure used to lock the two hoop rings 2 together when closed to prevent them from unfolding, and allowing the two hoop rings 2 to open when open.

[0032] like Figure 2 As shown, the turbidity detector 3 is installed inside the sleeve to detect the turbidity of the liquid in the infusion tube. The central control board 5 is electrically connected to the turbidity detector 3, the AD converter 6, the buzzer 7 and the collector 8 via power lines.

[0033] In this embodiment, specifically, the turbidity detector 3 is screwed with a collar 4 that can be fitted onto one of the fixing buckles 9; as Figure 2 As shown, the collar 4 is fitted onto the middle of the fixing buckle 9 on the left side of the top of the front collar 2, so that the turbidity detector 3 can be installed inside the collar 2. When the two collars 2 are fastened together to form a sleeve to hold and fix the infusion tube, the turbidity detector 3 is located inside the sleeve, and the detection head of the turbidity detector 3 faces the side with the infusion tube, so that it can be used to detect the turbidity of the liquid in the infusion tube.

[0034] Preferably, in this embodiment, such as Figure 3 As shown, the side wall of the box is provided with several ventilation holes 10, which can promote the air circulation inside and outside the box and help dissipate heat.

[0035] like Figure 1 and Figure 3 As shown, the buzzer 7 inside the box is installed at the ventilation hole 10. Several ventilation holes 10 can help to transmit the alarm sound of the buzzer 7 more clearly.

[0036] In this embodiment, the turbidity detector 3 is a D080 semiconductor turbidity sensor, the central control board 5 is a PCB circuit board, the AD converter 6 is an AD9851BRS digital-to-analog converter, and the data acquisition device 8 is a PK9015 data acquisition module. All of these are existing products. The data acquisition device 8 and the AD converter 6 can convert data signals in a timely and effective manner, which can improve the response speed and working efficiency of the alarm device.

[0037] The working principle of the alarm device in this embodiment is as follows:

[0038] When using this alarm device, such as Figure 1As shown, after opening the locking structure, rotate to open the two housings 1 and the two clamping rings 2, insert the infusion tube into the right clamping ring 2, and the turbidity detector 3 is installed in the middle of the fixing buckle 9 on the left side of the top of the left clamping ring 2 via the collar 4. Figure 2 As shown, the two housings 1 are rotated and fastened to form a box, while the two clamping rings 2 are fastened to form a sleeve. The two clamping rings 2 clamp the infusion tube inside. The turbidity detector 3 is located on the inner side of the top of the sleeve, with the detection head of the turbidity detector 3 facing the side with the infusion tube. The two clamping rings 2 are fastened together, so that the fixing buckles 9 on the fastening edge are matched and connected. In this way, the two clamping rings 2 that are fastened to form the sleeve are fixed together to prevent them from being opened during the detection process. The two clamping rings 2 also clamp and fix the infusion tube. The turbidity detector 3 will send a scattering alarm when light shines on turbid liquid, while it will not alarm when light does not scatter on transparent liquid. If there is anesthetic backflow in the infusion tube, the turbidity of the liquid in the infusion tube will be... As the liquid changes, the intensity of the refracted light also changes significantly. At this time, the turbidity detector 3 will detect the turbidity of the liquid in the infusion tube and send a data signal. The data collector 8 will promptly summarize and collect the data signal sent by the turbidity detector 3. The AD converter 6 will convert the collected data signal and transmit it to the central control board 5. The central control board 5 will process the information and then trigger the buzzer 7 to sound an alarm, indicating that there has been a backflow of anesthetic in the infusion tube, reminding medical staff to deal with it in time. Several ventilation holes 10 opened on the side wall of the housing 1 can ensure air circulation in the inner cavity of the box, and can transmit the alarm sound emitted by the buzzer 7 more clearly.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and specification of the present invention.

Claims

1. A continuous anesthetic pump infusion alarm device, characterized in that, include: The enclosure contains a central control board (5), an AD converter (6), a buzzer (7), and a data collector (8). A sleeve is provided on one side of the box body. The sleeve is formed by two openable and closable rings (2). When the two rings (2) are fastened into a sleeve, they are used to clamp the infusion tube. When the two rings (2) are opened, it is convenient to insert the infusion tube into the inside of the rings (2) or to take out the infusion tube from the inside of the rings (2). An openable and closable locking structure is provided between the two rings (2). When the locking structure is closed, it is used to lock the two rings (2) that are fastened together to prevent them from unfolding. When the locking structure is open, it allows the two rings (2) to open. The turbidity detector (3) is installed inside the sleeve to detect the turbidity of the liquid in the infusion tube. The central control board (5) is electrically connected to the turbidity detector (3), AD converter (6), buzzer (7) and collector (8) through power lines.

2. The anesthetic continuous infusion alarm device according to claim 1, characterized in that: The box is composed of two hinged shells (1). When the two shells (1) are fastened together, the box is formed. The two hoop rings (2) are respectively fixed on the outer side wall of the two shells (1) and located away from the hinge side. When the two shells (1) are fastened together to form the box, the two hoop rings (2) are fastened together to form the sleeve for clamping the infusion tube.

3. The anesthetic continuous infusion alarm device according to claim 1 or 2, characterized in that: The locking structure is provided in four parts, and each locking structure includes two matching fixing buckles (9). One fixing buckle (9) is a male buckle and the other fixing buckle (9) is a female buckle. Fixing buckles (9) are installed on the left and right fastening edges at the top and the left and right fastening edges at the bottom of the two hoops (2). When the two hoops (2) are fastened, the fixing buckles (9) on the fastening edges of the two hoops (2) are connected in pairs to form a closed locking structure.

4. The anesthetic continuous infusion alarm device according to claim 3, characterized in that: The turbidity detector (3) is provided with a collar (4) that can be fitted onto one of the fixing buckles (9).

5. The anesthetic continuous infusion alarm device according to claim 1 or 2, characterized in that: The side wall of the box is provided with several ventilation holes (10).

6. The anesthetic continuous infusion alarm device according to claim 5, characterized in that: The buzzer (7) inside the box is installed at the ventilation hole (10).

7. The anesthetic continuous infusion alarm device according to claim 1, characterized in that: The turbidity detector (3) is a D080 semiconductor turbidity sensor.

8. The anesthetic continuous infusion alarm device according to claim 1, characterized in that: The central control board (5) is a PCB circuit board.

9. The anesthetic continuous infusion alarm device according to claim 1, characterized in that: The AD converter (6) is an AD9851BRS digital-to-analog converter.

10. The anesthetic continuous infusion alarm device according to claim 1, characterized in that: The data acquisition device (8) is a PK9015 data acquisition module.

Images