Thrombus detection device

Abstract

The utility model discloses a thrombus detection device. The thrombus detection device comprises a first body, a second body, a photoelectric sensor and an alarm assembly. A through hole is formed in the middle of the first body, the first body is used for being arranged on the side, away from the second end, of the first end of the pump head, and a low-pressure pipe penetrates through the through hole. The second body is arranged on the side, away from the first end, of the second end of the pump head. The photoelectric sensor comprises an emitter and a receiver, the emitter is arranged on the first body, the receiver is arranged on the second body, the emitter is used for emitting infrared light towards the receiver in the direction from the first body to the second body, and the receiver is used for receiving the infrared light and sensing the illumination intensity. The alarm assembly is arranged on the second body, connected with the receiver and used for giving an alarm when the illumination intensity is lower than a threshold value. According to the technical scheme, whether thrombus appears in the pump head or not can be detected in time, and the problem that due to sudden thrombus in the pump head, artificial membrane lung shutdown is caused, and a patient has an accident is solved.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to a thrombus detection device. Background Art

[0002] Artificial membrane lung, also known as ECMO (extracorporeal membrane oxygenation), is an artificial heart-lung machine. The core parts are the membrane lung and the blood pump, which act as artificial lungs and artificial hearts respectively. When ECMO is in operation, blood is drawn from the veins, absorbs oxygen through the membrane lung, and discharges carbon dioxide. The blood that has undergone gas exchange can return to the veins (VV pathway) or to the arteries (VA pathway) under the push of the pump. However, as the artificial membrane lung operates for a long time, blood clots will appear in the pump head, affecting the pumping capacity of the pump head, causing the artificial membrane lung to shut down, resulting in accidents for the patient.

[0003] Therefore, how to timely detect whether there is thrombus in the pump head is a technical problem that needs to be solved urgently. Utility Model Content

[0004] The present application provides a thrombus detection device. The technical solution provided in the present application can timely detect whether a thrombus is present in the pump head, thereby preventing the artificial membrane lung from shutting down due to sudden thrombus in the pump head, causing accidents to the patient.

[0005] To achieve the above objectives, this application provides the following technical solutions:

[0006] The present application provides a thrombus detection device, which is applied to a pump head of an artificial membrane lung. Along the thickness direction of the pump head, the pump head has a first end and a second end. The low-pressure tube of the pump head is arranged at the first end, and the high-pressure tube of the pump head is arranged on the outer peripheral surface of the pump head and adjacent to the second end. The thrombus detection device includes a first body, a second body, a photoelectric sensor and an alarm component. A perforation is formed in the middle of the first body. The first body is used to be arranged on the side of the first end of the pump head away from the second end, and the perforation is for the low-pressure tube to pass through. The second body is arranged on the side of the second end of the pump head away from the first end. The photoelectric sensor includes a transmitter and a receiver. The transmitter is arranged on the first body, and the receiver is arranged on the second body. The transmitter is used to emit infrared light toward the receiver along the direction of the first body pointing to the second body, and the receiver is used to receive infrared light and sense the light intensity. The alarm component is arranged on the second body and connected to the receiver, and is used to issue an alarm when the light intensity is lower than the threshold.

[0007] In the above solution, the thrombus detection device is applied to the pump head of the artificial membrane lung to detect whether there is a thrombus in the pump head, preventing the artificial membrane lung from shutting down due to a sudden thrombus in the pump head and causing accidents to the patient. Exemplarily, when the blood flow inside the pump head is normal, the infrared light emitted by the transmitter can smoothly reach the receiver, and at this time, the light intensity received by the receiver exceeds the threshold. If a thrombus appears in the blood flow, the thrombus will block the propagation of the infrared light, resulting in a decrease in the light intensity detected by the receiver. When the light intensity is lower than the preset safety threshold, the alarm component will issue an alarm to prompt the medical staff to check and handle the thrombus, so as to replace the artificial membrane lung in time and reduce the risk of accidents to the patient.

[0008] According to some embodiments of the present application, the first body includes a first sub-body and a second sub-body. The first sub-body is detachably connected to the second sub-body. A first groove is formed on the side of the first sub-body facing the second sub-body, and a second groove is formed on the side of the second sub-body facing the first sub-body. The first groove and the second groove together form a perforation.

[0009] In the above solution, the first body is modularly arranged. By splitting into the first sub-body and the second sub-body, the first body can be later installed on or detached from the pump head of the artificial membrane lung, so that the thrombus detection device can be reused and the use cost can be reduced.

[0010] According to some embodiments of the present application, a convex portion is formed on the surface of the first sub-body facing the second sub-body, and a concave portion is formed on the surface of the second sub-body facing the first sub-body. The convex portion is used to be clamped in the concave portion.

[0011] According to some embodiments of the present application, the transmitter includes a first light-emitting group. The first light-emitting group includes a first group of lamp beads and a second group of lamp beads. The first group of lamp beads and the second group of lamp beads are spaced apart around the perforation. The first group of lamp beads is arranged on the first sub-body, and the second group of lamp beads is arranged on the second sub-body;

[0012] A first electrode terminal is formed on the surface of the first sub-body facing the second sub-body, and a second electrode terminal is formed on the surface of the second sub-body facing the first sub-body. When the first sub-body and the second sub-body are connected to each other, the first electrode terminal and the second electrode terminal are in contact with each other so that the first group of lamp beads and the second group of lamp beads are electrically connected to each other.

[0013] In the above solution, it is allowed that the two groups of lamp beads of the transmitter are physically separated but electrically connected to each other through the contact-type electrode terminals, providing flexibility and modularity for the transmitter, and thus contributing to the repeated usability of the thrombus detection device. Exemplarily, a battery is arranged in the first body, and the battery is in the first sub-body. When the first sub-body and the second sub-body are connected to each other, through the conduction between the electrode terminals, the battery can supply power to the first light-emitting group.

[0014] According to some embodiments of the present application, the first electrode terminal is disposed on the convex portion, and the second electrode terminal is disposed on the concave portion.

[0015] According to some embodiments of the present application, the emitter includes a second light-emitting group. The second light-emitting group includes a third group of lamp beads and a fourth group of lamp beads. The third group of lamp beads and the fourth group of lamp beads are spaced apart around the through hole. The third group of lamp beads is disposed on the first sub-body, and the second group of lamp beads is disposed on the second sub-body;

[0016] In the radial direction of the through hole, the second light-emitting group is farther from the through hole than the first light-emitting group.

[0017] In the above solution, by arranging the second light-emitting group on the outside, the detection range of the photoelectric sensor can be increased, thereby improving the effectiveness of detecting thrombus inside the pump head.

[0018] According to some embodiments of the present application, the thrombus detection device further includes a connecting member. One end of the connecting member is disposed on the outer peripheral surface of the first body, and the other end of the connecting member is used for detachably connecting to the outer peripheral surface of the second body.

[0019] In the above solution, by providing the connecting member, the mutual connection of the first body and the second body can be realized, so that the thrombus detection device can be conveniently installed on any pump head, and the structural stability between the first body and the second body can be improved, thereby improving the accuracy of the photoelectric sensor for thrombus detection.

[0020] According to some embodiments of the present application, the connecting member includes a plurality of connecting bands. The plurality of connecting bands are spaced apart on the outer peripheral surface of the first body; one end of each connecting band is fixed to the outer peripheral surface of the first body, and a clamping block is formed at the other end of each connecting member. A clamping groove is formed on the outer peripheral surface of the second body, and the clamping grooves correspond to the clamping blocks one by one.

[0021] According to some embodiments of the present application, the alarm component includes a controller, an alarm lamp, and a lens cover. The controller is disposed in the second body and is connected to the receiver and the alarm lamp. The alarm lamp is disposed on a side of the second body facing away from the first body, and the lens cover is disposed on a side of the second body facing away from the first body and covers the alarm lamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required for the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0023] Figure 1 Schematic diagram of a thrombus detection device and a pump head in some embodiments of the present application;

[0024] Figure 2 Schematic diagram of the first body and the transmitter in some embodiments of the present application;

[0025] Figure 3 Schematic diagram of the first sub - body in some embodiments of the present application;

[0026] Figure 4 Schematic diagram of the second body and the receiver in some embodiments of the present application.

[0027] Icons: 10 - Thrombus detection device, 11 - First body, 110 - Perforation, 111 - First sub - body, 1110 - Convex part, 1111 - First electrode terminal, 112 - Second sub - body, 12 - Second body, 120 - Card slot, 13 - Transmitter, 130 - First light - emitting group, 1300 - First group of lamp beads, 1301 - Second group of lamp beads, 131 - Second light - emitting group, 1310 - Third group of lamp beads, 1311 - Fourth group of lamp beads, 14 - Receiver, 15 - Alarm component, 150 - Alarm lamp, 161 - Lens cover, 16 - Connector. Detailed implementation manners

[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. The components of the embodiments of the present application usually described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application claimed, but merely represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts fall within the scope of protection of the present application.

[0030] It should be noted that: Similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0031] In the description of the embodiments of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of this application is usually placed during use, or the orientation or positional relationship commonly understood by those skilled in the art. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0032] In the description of the embodiments of the present application, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0033] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0034] Please refer to Figures 1-4 , Figure 1 , which is a schematic diagram of a thrombus detection device and a pump head in some embodiments of the present application, Figure 2 , which is a schematic diagram of a first body and a transmitter in some embodiments of the present application, Figure 3 , which is a schematic diagram of a first sub-body in some embodiments of the present application, Figure 4 , which is a schematic diagram of a second body and a receiver in some embodiments of the present application.

[0035] The present application provides a thrombus detection device 10, which is applied to the pump head of an artificial membrane lung. Along the thickness direction of the pump head, the pump head has a first end and a second end. The low-pressure pipe of the pump head is arranged at the first end, and the high-pressure pipe of the pump head is arranged on the outer peripheral surface of the pump head and near the second end. In some embodiments, blood enters the inside of the pump head through the low-pressure pipe, and the conical part inside the pump head rotates at a high speed, so that the central part of the pump head is a low-pressure area, and the circumferential area inside the pump head is a high-pressure area. Due to the action of the pressure difference, blood enters through the low-pressure pipe and is discharged at a high speed through the high-pressure pipe.

[0036] In Figure 1 , the pump head 20, the low-pressure pipe 21, and the high-pressure pipe 22 are shown.

[0037] The thrombus detection device 10 includes a first body 11, a second body 12, a photoelectric sensor and an alarm component 15. A through hole 110 is formed in the middle of the first body 11. The first body 11 is used to be arranged on the side of the first end of the pump head away from the second end, and the through hole 110 is for the low-pressure tube to pass through. The second body 12 is arranged on the side of the second end of the pump head away from the first end. The photoelectric sensor includes a transmitter 13 and a receiver 14. The transmitter 13 is arranged on the first body 11, and the receiver 14 is arranged on the second body 12. The transmitter 13 is used to emit infrared light toward the receiver 14 in the direction of the first body 11 pointing to the second body 12. The receiver 14 is used to receive infrared light and sense light intensity. The alarm component 15 is arranged on the second body 12, connected to the receiver 14, and is used to issue an alarm when the light intensity is lower than a threshold value.

[0038] In some embodiments, the photosensor may be of through-beam type.

[0039] In some embodiments, the first body 11 and the second body 12 may be made of transparent plastic. The emitter 13 may be built in the first body 11 , and the second body 12 may be built in the second body 12 .

[0040] Exemplarily, when the pump head is used for the first time, the threshold value can be calibrated. Exemplarily, when the pump head is used for the first time, the transmitter 13 emits infrared light to the receiver 14, and the value of the light intensity sensed by the receiver 14 is a first value, and the threshold value can be set to 80% or lower of the first value.

[0041] In the above scheme, the thrombus detection device 10 is applied to the pump head of the artificial membrane lung to detect whether there is a thrombus in the pump head, so as to prevent the artificial membrane lung from shutting down due to a sudden thrombus in the pump head, causing an accident to the patient. For example, when the blood flow inside the pump head is normal, the infrared light emitted by the transmitter 13 can smoothly reach the receiver 14, and the light intensity received by the receiver 14 at this time exceeds the threshold. If a thrombus appears in the blood flow, the thrombus will block the propagation of infrared light, resulting in a decrease in the light intensity detected by the receiver 14. When the light intensity is lower than the preset safety threshold, the alarm component 15 will sound an alarm to prompt medical staff to check and deal with the thrombus, so as to replace the artificial membrane lung in time and reduce the risk of accidents to patients.

[0042] According to some embodiments of the present application, the first body 11 includes a first sub-body 111 and a second sub-body 112, the first sub-body 111 is detachably connected to the second sub-body 112, a first groove is formed on a side of the first sub-body 111 facing the second sub-body 112, and a second groove is formed on a side of the second sub-body 112 facing the first sub-body 111, and the first groove and the second groove together form a through hole 110.

[0043] Exemplarily, due to the obstruction of the low-pressure pipe, the first body 11 can be set as a split structure. From the side of the low-pressure pipe, the first sub-body 111 and the second sub-body 112 are inserted into each other to achieve the assembly of the first sub-body 111 and the second sub-body 112.

[0044] In the above solution, the first body 11 is modularly arranged. By splitting into the first sub-body 111 and the second sub-body 112, the first body 11 can be later installed on or detached from the pump head of the artificial membrane lung, so that the thrombus detection device 10 can be reused, reducing the use cost.

[0045] According to some embodiments of the present application, a convex portion 1110 is formed on the surface of the first sub-body 111 facing the second sub-body 112, and a concave portion is formed on the surface of the second sub-body 112 facing the first sub-body 111. The convex portion 1110 is used to be clamped in the concave portion.

[0046] According to some embodiments of the present application, the emitter 13 includes a first light-emitting group 130. The first light-emitting group 130 includes a first group of lamp beads 1300 and a second group of lamp beads 1301. The first group of lamp beads 1300 and the second group of lamp beads 1301 are spaced apart around the through hole 110. The first group of lamp beads 1300 is arranged on the first sub-body 111, and the second group of lamp beads 1301 is arranged on the second sub-body 112. A first electrode terminal 1111 is formed on the surface of the first sub-body 111 facing the second sub-body 112, and a second electrode terminal is formed on the surface of the second sub-body 112 facing the first sub-body 111. When the first sub-body 111 and the second sub-body 112 are connected to each other, the first electrode terminal 1111 and the second electrode terminal are in contact with each other so that the first group of lamp beads 1300 and the second group of lamp beads 1301 are electrically connected to each other.

[0047] In some embodiments, several lamp beads in the first group of lamp beads 1300 can be connected in series by a wire, and several lamp beads in the second group of lamp beads 1301 can be connected in series by another wire. The end of the wire can be provided with the first electrode terminal 1111 (for example, the number of the first electrode terminals 1111 is two, and they are arranged at both ends of the wire), and the end of the other wire can be provided with the second electrode terminal (for example, the number of the first electrode terminals 1111 is two, and they are arranged at both ends of the wire). When the first electrode terminal 1111 and the second electrode terminal are in contact with each other, the circuits of the first group of lamp beads 1300 and the second group of lamp beads 1301 are turned on. The first electrode terminal 1111 and the second electrode terminal can be metal sheets or metal blocks.

[0048] In the above solution, two sets of lamp beads of the emitter 13 are allowed to be physically separated, but electrically connected to each other through contact electrode terminals, which provides flexibility and modularity for the emitter 13, thus contributing to the repeatable usability of the thrombus detection device 10. Exemplarily, a battery is disposed within the first body 11, and the battery is in the first sub-body 111. When the first sub-body 111 and the second sub-body 112 are connected to each other, through the conduction between the electrode terminals, the battery can supply power to the first light-emitting group 130.

[0049] According to some embodiments of the present application, the first electrode terminal 1111 is disposed on the convex portion 1110, and the second electrode terminal is disposed on the concave portion.

[0050] In some embodiments, the first electrode terminal 1111 may be a metal sheet disposed on the surface of the convex portion 1110, and the second electrode terminal may be a metal sheet disposed on the surface of the concave portion. When the convex portion 1110 and the concave portion are docked, the first electrode terminal 1111 and the second electrode terminal come into contact with each other.

[0051] According to some embodiments of the present application, the emitter 13 includes a second light-emitting group 131. The second light-emitting group 131 includes a third set of lamp beads 1310 and a fourth set of lamp beads 1311. The third set of lamp beads 1310 and the fourth set of lamp beads 1311 are spaced apart around the through-hole 110. The third set of lamp beads 1310 is disposed in the first sub-body 111, and the second set of lamp beads 1301 is disposed in the second sub-body 112. Along the radial direction of the through-hole 110, the second light-emitting group 131 is farther from the through-hole 110 than the first light-emitting group 130.

[0052] In some embodiments, the third set of lamp beads 1310 in the second light-emitting group 131 may be connected in parallel with the first set of lamp beads 1300, and the fourth set of lamp beads 1311 may be connected in parallel with the second set of lamp beads 1301.

[0053] In the above solution, by disposing the second light-emitting group 131 on the outside, the detection range of the photoelectric sensor can be increased, thereby improving the effectiveness of thrombus detection inside the pump head.

[0054] According to some embodiments of the present application, the thrombus detection device 10 further includes a connector 16. One end of the connector 16 is disposed on the outer peripheral surface of the first body 11, and the other end of the connector 16 is used for detachably connecting to the outer peripheral surface of the second body 12.

[0055] In the above solution, by providing the connector 16, the mutual connection between the first body 11 and the second body 12 can be realized, so that the thrombus detection device 10 can be conveniently installed on any pump head, and the structural stability between the first body 11 and the second body 12 can be improved, thereby providing the accuracy of thrombus detection by the photoelectric sensor.

[0056] According to some embodiments of the present application, the connecting member 16 includes a plurality of connecting bands, which are spaced apart on the outer peripheral surface of the first body 11. One end of each connecting band is fixed to the outer peripheral surface of the first body 11, and a clamping block is formed at the other end of each connecting member 16. A clamping groove 120 is formed on the outer peripheral surface of the second body 12, and the clamping grooves 120 correspond to the clamping blocks one by one.

[0057] According to some embodiments of the present application, the alarm component 15 includes a controller (not shown in the figure), an alarm lamp 150, and a lens cover 161. The controller is disposed in the second body 12 and is connected to the receiver 14 and the alarm lamp 150. The alarm lamp 150 is disposed on the side of the second body 12 away from the first body 11, and the lens cover 161 is disposed on the side of the second body 12 away from the first body 11 and covers the alarm lamp 150.

[0058] The controller can be a programmable logic controller, which can be built-in with a program to be able to set a threshold value, and compare the signal transmitted by the receiver 14 with the threshold value to control the alarm lamp 150 to flash a light tube. The alarm lamp 150 can be an LED lamp.

[0059] The lens cover 161 can be made of transparent plastic, and can diverge the light emitted by the alarm lamp 150 to remind medical staff to achieve the effect of alarm.

[0060] The above are only the preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A thrombus detection device, applied to a pump head of an artificial membrane lung, wherein along the thickness direction of the pump head, the pump head has a first end and a second end, the low-pressure pipe of the pump head is arranged at the first end, and the high-pressure pipe of the pump head is arranged on the outer peripheral surface of the pump head and adjacent to the second end, characterized in that: include: A first body, wherein a through hole is formed in the middle of the first body, the first body is used to be arranged on a side of the first end of the pump head away from the second end, and the through hole is for the low-pressure pipe to pass through; A second body, disposed on a side of the second end of the pump head away from the first end; A photoelectric sensor, comprising a transmitter and a receiver, wherein the transmitter is arranged on the first body, and the receiver is arranged on the second body, and the transmitter is used to transmit infrared light toward the receiver in a direction from the first body to the second body, and the receiver is used to receive the infrared light and sense the light intensity; An alarm component is arranged on the second body and connected to the receiver, and is used for issuing an alarm when the light intensity is lower than a threshold value.

2. The thrombus detection device according to claim 1, characterized in that: The first body includes a first sub-body and a second sub-body, the first sub-body is detachably connected to the second sub-body, a first groove is formed on the side of the first sub-body facing the second sub-body, and a second groove is formed on the side of the second sub-body facing the first sub-body, and the first groove and the second groove together form the through hole.

3. The thrombus detection device according to claim 2, characterized in that: A convex portion is formed on a surface of the first sub-body facing the second sub-body, and a concave portion is formed on a surface of the second sub-body facing the first sub-body, wherein the convex portion is used to be clamped in the concave portion.

4. The thrombus detection device according to claim 3, characterized in that: The emitter includes a first light-emitting group, the first light-emitting group includes a first group of lamp beads and a second group of lamp beads, the first group of lamp beads and the second group of lamp beads are distributed around the perforations at intervals, the first group of lamp beads are arranged on the first sub-body, and the second group of lamp beads are arranged on the second sub-body; A first electrode terminal is formed on a surface of the first sub-body facing the second sub-body, and a second electrode terminal is formed on a surface of the second sub-body facing the first sub-body. When the first sub-body and the second sub-body are connected to each other, the first electrode terminal and the second electrode terminal contact each other so that the first group of lamp beads and the second group of lamp beads are electrically connected to each other.

5. The thrombus detection device according to claim 4, characterized in that: The first electrode terminal is disposed on the convex portion, and the second electrode terminal is disposed on the concave portion.

6. The thrombus detection device according to claim 4, characterized in that: The emitter includes a second light-emitting group, the second light-emitting group includes a third group of lamp beads and a fourth group of lamp beads, the third group of lamp beads and the fourth group of lamp beads are spaced around the perforations, the third group of lamp beads are arranged on the first sub-body, and the second group of lamp beads are arranged on the second sub-body; Along the radial direction of the through hole, the second light-emitting group is farther from the through hole than the first light-emitting group.

7. The thrombus detection device according to claim 2, characterized in that: The thrombus detection device further includes a connecting piece, one end of which is disposed on the outer circumference of the first body, and the other end of which is used to be detachably connected to the outer circumference of the second body.

8. The thrombus detection device according to claim 7, characterized in that: The connecting member includes a plurality of connecting belts, which are arranged at intervals on the outer circumference of the first body; one end of each of the connecting belts is fixed to the outer circumference of the first body, and a clamping block is formed at the other end of each of the connecting members, and a clamping groove is formed on the outer circumference of the second body, and the clamping groove corresponds to the clamping block one by one.

9. The thrombus detection device according to claim 1, characterized in that: The alarm component includes a controller, an alarm light and a lens cover, the controller is arranged in the second body and is connected to the receiver and the alarm light, the alarm light is arranged on a side of the second body away from the first body, the lens cover is arranged on a side of the second body away from the first body and the alarm light cover is arranged.

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