Alarm device for PICC (peripherally inserted central catheter)

Abstract

The utility model relates to the field of medical instruments, in particular to a PICC (peripherally inserted central catheter) alarm device which comprises a bottom plate, fixing straps are arranged on two sides of the bottom plate, the other ends of the two fixing straps are detachably connected to form a closed ring, the PICC alarm device further comprises elastic straps, the elastic straps are arranged on the surfaces of the bottom plate and the fixing straps, and an air storage cavity is limited by the elastic straps, the fixing straps and the bottom plate. A controller and an air pressure sensor are arranged in the bottom plate, and vent holes are formed in the bottom plate; gas is input into the gas storage cavity so that the elastic band can extrude the PICC position, when a patient scratches the bottom plate and the fixing band, the elastic band can be extruded, the gas pressure is increased by changing the size in the gas storage cavity to be reduced and the gas to be compressed, and when the gas pressure floats and exceeds the set range, a warning lamp can emit light to prompt medical staff and accompanying personnel. And meanwhile, the terminal can receive a signal transmitted by the controller, so that remote monitoring is realized.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to an alarm device for a PICC catheter. Background Art

[0002] A peripherally inserted central catheter (PICC) is a catheter inserted into the superior vena cava via a peripheral vein puncture in the upper extremity. It involves inserting a cannula through a peripheral vein, with the tip of the catheter positioned in the superior vena cava. PICC placement significantly outperforms traditional trocars used in clinical practice. These are rigid and have a short retention time of only 3-5 days. PICC catheters are soft and have a long retention time of 1-2 years. They are commonly used in cancer patients requiring long-term chemotherapy, those receiving long-term parenteral nutrition, and those receiving long-term intravenous infusions.

[0003] Some patients will be in an unconscious state after PICC insertion. The location of the PICC will make these patients feel like a foreign body and they will scratch unconsciously. During the scratching process, the tube is easily pulled out, and they will be unable to continue medical treatment. Existing technology cannot provide early warning of patients scratching, and it is difficult to remind medical staff of the PICC status. Utility Model Content

[0004] The present application provides an alarm device for a PICC catheter to solve the technical problem that the inventors realized that some patients who have had a PICC inserted will be in an unconscious state. The position of the PICC will make such patients feel a foreign body and scratch unconsciously. The tube is easily pulled out during the scratching process, and then they cannot continue medical treatment. The existing technology cannot provide an early warning of the patient's scratching, and it is difficult to remind medical staff of the PICC status.

[0005] The present application provides an alarm device for a PICC catheter, comprising a base plate, fixing belts are provided on both sides of the base plate, the other ends of the two fixing belts are detachably connected to form a closed ring, and an elastic belt is provided, the elastic belt is provided on the surface of the base plate and the fixing belt, the elastic belt, the fixing belt and the base plate limit an air storage cavity, a controller and an air pressure sensor are provided inside the base plate, a warning light is provided on the top of the base plate, the air pressure sensor and the warning light are electrically connected to the controller, the air pressure sensor is used to monitor the air pressure in the air storage cavity, a vent is provided inside the base plate, a plug is provided on the top of the base plate, the plug can seal the vent, and the vent is connected to the air storage cavity.

[0006] In any of the above technical solutions, further, a terminal is included, the terminal includes a display and a wireless communicator, the display and the wireless communicator are electrically connected, and the controller and the wireless communicator are communicatively connected.

[0007] In any of the above technical solutions, further, the air vent includes an air inlet and an air exhaust hole, the air inlet and the air exhaust hole are both opened in the bottom plate, the air inlet and the air exhaust hole are both connected to the air storage chamber, and a one-way valve is provided in the air inlet and the air exhaust hole.

[0008] In any of the above technical solutions, further, a battery is provided inside the base plate, and the battery is used to supply power to the controller, the air pressure sensor and the warning light.

[0009] In any of the above technical solutions, further, the number of the blockages is two, and the two blockages respectively block the air inlet and the air outlet.

[0010] In any of the above technical solutions, further, both of the blocked surfaces are provided with a connecting belt, and the other end of the connecting belt is provided on the top of the bottom plate.

[0011] In any of the above technical solutions, further, a charging hole is opened on the front side of the base plate.

[0012] In any of the above technical solutions, further, the one-way valve in the air inlet restricts the direction from the air inlet to the air storage chamber, and the one-way valve in the exhaust hole restricts the direction from the air storage chamber to the exhaust hole.

[0013] In any of the above technical solutions, further, the other ends of the two fixing straps are detachably connected by Velcro, snap buckles or buckles.

[0014] In any of the above technical solutions, further, both of the blocked surfaces are provided with a differentiating coating.

[0015] The beneficial effects of this application are mainly:

[0016] By inputting gas into the air storage chamber, the elastic band squeezes the PICC position. When the patient scratches the base plate and the fixing strap, the elastic band will be squeezed, and the volume of the air storage chamber will be reduced, and the gas will be compressed to increase the air pressure. When the air pressure fluctuates beyond the set range, the warning light will light up to alert medical staff and accompanying personnel. At the same time, the terminal can receive the signal transmitted by the controller to realize remote monitoring.

[0017] It should be understood that both the foregoing general description and the following detailed description are for purposes of illustration and description and are not necessarily limiting of the present application. The accompanying drawings, which are incorporated into and constitute a part of the specification, illustrate the subject matter of the present application. Together, the description and the drawings serve to explain the principles of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the specific implementation methods or the description of the prior art. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0019] Figure 1 This is a schematic structural diagram of the alarm device according to an embodiment of the present application (front view);

[0020] Figure 2 This is a schematic diagram of the structure of the alarm device in the embodiment of the present application. Figure 1 (front sectional view);

[0021] Figure 3 This is a schematic diagram of the structure of the alarm device in the embodiment of this application Figure 2 (front sectional view);

[0022] Figure 4 This is a schematic diagram of the electronic control process in the embodiment of this application.

[0023] icon:

[0024] 100-base plate; 101-fixing belt; 102-elastic belt; 103-air storage chamber; 104-controller; 105-air pressure sensor; 106-blockage; 107-air inlet; 108-exhaust hole; 109-battery; 110-connecting belt; 111-charging port; 112-warning light; 113-one-way valve. DETAILED DESCRIPTION

[0025] The technical solution of the present application will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0026] Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of this application.

[0027] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this application and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0029] See also Figure 1 、 Figure 2 、 Figure 3 and Figure 4 In one or more embodiments, a PICC catheter alarm device is provided, comprising a base plate 100, with fixing belts 101 provided on both sides of the base plate 100, the other ends of the two fixing belts 101 being detachably connected to form a closed ring, and an elastic belt 102 provided on the surface of the base plate 100 and the fixing belt 101, the elastic belt 102, the fixing belt 101 and the base plate 100 defining an air storage cavity 103, and a controller 104 and an air pressure sensor provided inside the base plate 100. The bottom plate 100 is provided with a warning light 112, and the air pressure sensor 105 and the warning light 112 are electrically connected to the controller 104. The air pressure sensor 105 is used to monitor the air pressure in the air storage chamber 103. A vent is provided inside the bottom plate 100, and a plug 106 is provided on the top of the bottom plate 100. The plug 106 can block the vent, and the vent is connected to the air storage chamber 103. The other ends of the two fixing straps 101 are detachably connected by Velcro, a snap fastener or a buckle.

[0030] In this embodiment, the elastic band under the base plate 100 can be placed at the PICC position, and then the other end of the fixing band 101 can be detachably connected, the plug 106 is removed and air is inflated into the air storage chamber 103 through the vent hole. The elastic band expands and squeezes the PICC position, thereby improving the firmness of the PICC. At the same time, when the patient scratches the base plate 100 and the fixing band 101, the elastic band is squeezed, and the volume of the air storage chamber 103 is reduced, and the gas is compressed to increase the air pressure. When the air pressure fluctuates beyond the set range, the warning light 112 will light up to alert medical staff and accompanying personnel. The connection between the two fixing bands 101 includes but is not limited to the above structure.

[0031] See also Figure 1 、 Figure 2 and Figure 3In some embodiments, the vent includes an air inlet 107 and an exhaust 108, and the air inlet 107 and the exhaust 108 are both opened in the bottom plate 100, and the air inlet 107 and the exhaust 108 are both connected to the air storage chamber 103. A one-way valve 113 is provided in the air inlet 107 and the exhaust 108. There are two plugs 106, and the two plugs 106 respectively block the air inlet 107 and the exhaust 108. A connecting belt 110 is provided on the surface of the two plugs 106, and the other end of the connecting belt 110 is provided on the top of the bottom plate 100. The one-way valve 113 in the air inlet 107 limits the direction from the air inlet 107 to the air storage chamber 103, and the one-way valve 113 in the exhaust 108 limits the direction from the air storage chamber 103 to the exhaust 108. The surfaces of the two plugs 106 are provided with a distinguishing coating.

[0032] In this embodiment, the air storage chamber 103 can be inflated through the air inlet 107, and the air storage chamber 103 can be exhausted to the outside of the device through the exhaust hole 108. At this time, the flow of gas is restricted by the one-way valve 113 in the air inlet 107 and the exhaust hole 108. When taking in air, the exhaust hole 108 can be blocked by the plug 106, and when exhausting air, the air inlet 107 can be blocked by the plug 106 to prevent gas leakage from affecting the inflation efficiency in the air storage chamber 103. The setting of the connecting belt 110 can effectively prevent the loss of the plug 106, and the setting of the distinguishing coating makes it easy to know whether the plug 106 corresponds to the exhaust hole 108 or the air inlet 107.

[0033] See also Figure 1 、 Figure 2 、 Figure 3 and Figure 4 In some embodiments, a terminal is further included. The terminal includes a display and a wireless communicator. The display and the wireless communicator are electrically connected. The controller 104 and the wireless communicator are communicatively connected. A battery 109 is provided inside the base plate 100. The battery 109 is used to power the controller 104, the air pressure sensor 105 and the warning light 112. A charging port 111 is provided on the front of the base plate 100.

[0034] In this embodiment, the data monitored by the air pressure sensor 105 is transmitted to the wireless communicator via the controller 104 and then displayed on a display, enabling medical staff to achieve remote monitoring. The terminal can be a computer, mobile phone, tablet, etc., and the communication connection can be 4G, 5G, WIFI, Bluetooth, local area network, etc.; the battery 109 can power the controller 104, the air pressure sensor 105 and the warning light 112, and the charging port 111 can charge the battery 109.

[0035] It should be noted that the specific models and specifications of the air pressure sensor 105, controller 104, warning light 112, wireless communicator, and display disclosed herein need to be selected and determined based on the actual specifications of the device. The specific selection and calculation method adopts the existing technology in this field and will not be described in detail. The power supply and its principles are clear to those skilled in the art and will not be described in detail here. The connection and installation of the various parts and the signal transmission principles are well known in the art.

[0036] Specifically, the working principle of the PICC catheter alarm device provided in this application is:

[0037] The elastic band under the bottom plate 100 can be placed on the PICC position, and then the other end of the fixing band 101 can be detachably connected. The plug 106 is removed and air is inflated into the air storage cavity 103 through the air inlet 107. The elastic band expands and squeezes the PICC position, thereby improving the firmness of the PICC.

[0038] When the patient scratches the base plate 100 and the fixing strap 101, the elastic strap is squeezed, which reduces the volume of the air storage chamber 103, compresses the gas, and increases the air pressure. When the air pressure fluctuates beyond the set range, the warning light 112 illuminates to alert medical staff and accompanying personnel. The data monitored by the air pressure sensor 105 is transmitted to the wireless communicator through the controller 104 and then displayed on the display, allowing medical staff to achieve remote monitoring.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A PICC catheter alarm device, characterized in that: It includes a base plate, both sides of which are provided with fixing belts, the other ends of the two fixing belts are detachably connected to form a closed ring, and an elastic belt is provided, the elastic belt is provided on the surface of the base plate and the fixing belt, the elastic belt, the fixing belt and the base plate limit the air storage cavity, the interior of the base plate is provided with a controller and an air pressure sensor, the top of the base plate is provided with a warning light, the air pressure sensor and the warning light are electrically connected to the controller, the air pressure sensor is used to monitor the air pressure in the air storage cavity, the interior of the base plate is provided with an air vent, the top of the base plate is provided with a plug, the plug can seal the air vent, and the air vent is communicated with the air storage cavity.

2. The PICC catheter alarm device according to claim 1, characterized in that: The device further includes a terminal including a display and a wireless communicator, wherein the display and the wireless communicator are electrically connected, and the controller and the wireless communicator are communicatively connected.

3. The PICC catheter alarm device according to claim 1, characterized in that: The vent includes an air inlet and an air outlet. Both the air inlet and the air outlet are opened in the bottom plate. Both the air inlet and the air outlet are connected to the air storage cavity. Both the air inlet and the air outlet are provided with a one-way valve.

4. The PICC catheter alarm device according to claim 1, characterized in that: A battery is provided inside the base plate, and the battery is used to supply power to the controller, the air pressure sensor and the warning light.

5. The PICC catheter alarm device according to claim 3, characterized in that: There are two blockages, and the two blockages respectively block the air inlet and the air outlet.

6. The PICC catheter alarm device according to claim 5, characterized in that: The two blocked surfaces are both provided with a connecting belt, and the other end of the connecting belt is provided on the top of the bottom plate.

7. The PICC catheter alarm device according to claim 4, characterized in that: A charging hole is provided on the front side of the bottom plate.

8. The PICC catheter alarm device according to claim 3, characterized in that: The one-way valve in the air inlet restricts a direction from the air inlet to the air storage chamber, and the one-way valve in the air exhaust hole restricts a direction from the air storage chamber to the air exhaust hole.

9. The PICC catheter alarm device according to claim 1, characterized in that: The other ends of the two fixing straps are detachably connected via Velcro, snap buckles or buckles.

10. The PICC catheter alarm device according to claim 5, characterized in that: Both surfaces of the plug are provided with a differentiating coating.

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