Medical tube and liquid detection device

Abstract

The application provides a medical pipeline, one side wall of a pipeline body is a planar structure, and a cross section of the pipeline body corresponding to the planar structure is different from cross sections of other pipeline bodies, and the planar structure part can be detected by a detector. The application also provides a liquid detection device, external light is avoided to interfere with internal light receiving by covering the pipeline through a shell in the device, and blood detection is realized by arranging photoelectric emission devices and photoelectric receiving devices on the same side.

Description

Technical Field

[0001] The embodiments of this application belong to the field of medical devices, and particularly relate to a medical tubing and liquid detection device. Background Technology

[0002] In emergency situations involving critically ill patients with severe cardiopulmonary failure, extracorporeal membrane oxygenation (ECMO) is used to provide continuous extracorporeal respiratory and circulatory support, buying precious time for emergency treatment. Currently, the implementation of ECMO systems requires manual blood sampling for blood oxygen saturation and hematocrit testing. Existing testing devices lack anti-reverse installation design for their medical tubing, leading to incorrect orientation during installation and resulting in inaccurate fluid detection. Summary of the Invention

[0003] To address or mitigate the technical problems existing in the prior art, in a first aspect, embodiments of this application provide a medical tubing, comprising:

[0004] The pipeline body has two fixed stops spaced apart at its ends;

[0005] One side wall of the pipeline body between the two fixed stops is a planar structure. The cross-section of the pipeline body corresponding to the planar structure is different from the cross-section of the other pipeline bodies. A detector is attached to the side of the planar structure away from the pipeline body. The detector is used to detect the liquid in the pipeline body.

[0006] In a preferred embodiment of this application, the cross-section of the fixing member is larger than the cross-section of the end of the pipeline body connected to the fixing member;

[0007] In a preferred embodiment of this application, at least one first groove is provided on the side of the pipeline body near the detector. The first groove is provided along the extension direction of the pipeline and is located on the periphery of the detector.

[0008] Compared with the prior art, the medical tubing provided in this application includes a tubing body with two fixed stops spaced apart at its ends. One side wall of the tubing body between the two fixed stops is a planar structure, and the cross-section of the tubing body corresponding to this planar structure differs from the cross-sections of the other tubing bodies. A detector is fitted onto the side of the planar structure away from the tubing body, and this detector is used to detect liquid within the tubing body. This tubing design solves the technical problems existing in the prior art, preventing errors when medical personnel insert the medical tubing into the detection device and improving the detection accuracy of the device.

[0009] Secondly, embodiments of this application also provide a medical blood detection device, including a detector and the medical tubing described in any one of the first aspects;

[0010] The detector includes a housing and a detection unit disposed in the housing, and the detection unit detects parameters of the liquid in the pipeline;

[0011] The upper surface of the housing is provided with a second groove and a fixing mechanism. The second groove is used to install the pipeline. One end of the fixing mechanism is movably connected to one side of the second groove, and the other end of the fixing mechanism can rotate around one end of the fixing mechanism. The fixing mechanism covers the upper surface of the pipeline.

[0012] When the cross-section of the pipe body corresponding to the planar structure is larger than the cross-section of other pipe bodies, a third groove is provided in the second groove, and the planar structure on one side of the pipe body cooperates with the third groove to fix the pipe.

[0013] When the cross-section of the pipe body corresponding to the planar structure is smaller than the cross-section of other pipe bodies, a boss is provided in the second groove, and the planar structure on one side of the pipe body cooperates with the boss to fix the pipe.

[0014] In a preferred embodiment of this application, the detection unit includes a photoelectric transmitter and a photoelectric receiver;

[0015] The lower surface of the pipeline has a first chamber and a second chamber arranged sequentially on the same side of the housing at intervals.

[0016] A photoelectric transmitter is installed in the first chamber, and a photoelectric receiver is installed in the second chamber.

[0017] In a preferred embodiment of this application, the detection unit further includes an infrared detector;

[0018] The housing also includes a third chamber, which is arranged adjacent to and spaced apart from the second chamber. An infrared detector is installed in the third chamber.

[0019] The distance between the third chamber and the second chamber is different from the distance between the second chamber and the first chamber.

[0020] As a preferred embodiment of this application, the inner top of the first chamber, the inner top of the second chamber, and the inner top of the third chamber are respectively provided with a first transparent protective member, a second transparent protective member, and a third transparent protective member. The first transparent protective member, the second transparent protective member, and the third transparent protective member are respectively used to prevent foreign objects from falling into the first chamber, the second chamber, and the third chamber.

[0021] In a preferred embodiment of this application, the photoelectric transmitter and the photoelectric receiver have the same length along the blood flow direction of the pipeline, and the ratio of the center distance between the photoelectric transmitter and the photoelectric receiver to the length is between 1.1 and 1.5.

[0022] In a preferred embodiment of this application, an elastic element is provided on the opposite side of the fixing mechanism and the pipeline; when the pipeline is fixed by the fixing mechanism, the elastic element comes into contact with the pipeline and undergoes elastic deformation to fix the pipeline.

[0023] In a preferred embodiment of this application, a fourth groove is provided at the end of the housing corresponding to the position of the stop, and part of the stop is disposed in the corresponding fourth groove to fix the pipeline, and the cross-section of the two stops gradually decreases in the downward direction along the fourth groove.

[0024] Compared with the prior art, this application provides a liquid detection device, which provides a first fixing structure that can rotate around one end of a first fixing mechanism on the surface of the pipeline. This covers the pipeline to avoid interference from external light on the internal light reception, and the first fixing structure further fixes the pipeline to avoid measurement errors caused by movement during blood measurement. Attached Figure Description

[0025] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. Some specific embodiments of this application will be described in detail below with reference to the accompanying drawings in an exemplary and non-limiting manner. The same reference numerals in the drawings designate the same or similar parts or components. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0026] Figure 1The diagram shows the structure of the pipeline;

[0027] Figure 2 A three-dimensional structural diagram of a blood testing device is shown;

[0028] Figure 3 A top view of a blood testing device is shown.

[0029] Figure 4 It shows Figure 3 AA section diagram;

[0030] Figure 5 It shows Figure 4 A magnified view of a portion of the image;

[0031] Figure 6 It shows Figure 3 BB cross-section diagram;

[0032] Figure 7 It shows Figure 6 A magnified view of a portion of the image;

[0033] The following are the reference numerals in the attached figures:

[0034] 1: Pipeline body; 1-1: Fixing stop; 1-2: First groove; 1-3: Planar structure; 2: Housing; 2-1: Boss; 2-2: Fixing mechanism; 2-2-1: Observation window; 2-2-2: Elastic element; 2-3: Photoelectric transmitter; 2-4: Photoelectric receiver; 2-5: Infrared detector; 2-6: First transparent protective element; 2-7: Second transparent protective element; 2-8: Third transparent protective element; 2-9: Second groove; 2-10: Detection section; 2-11: First chamber; 2-12: Second chamber; 2-13: Third chamber. Detailed Implementation

[0035] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are merely some, not all, of the embodiments of the present application. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without creative effort should fall within the scope of protection of the present application.

[0036] like Figure 1 As shown in the figure, this application provides a medical tubing, including:

[0037] Pipe body 1, with two fixed stops 1-1 spaced apart at the ends of the pipe body;

[0038] One side wall of the pipeline body 1 between the two fixed stops 1-1 is a planar structure 1-3. The cross-section of the pipeline body 1 corresponding to the planar structure is different from the cross-section of the other pipeline bodies 1. A detector is attached to the side of the planar structure 1-3 away from the pipeline body 1. The detector is used to detect the liquid in the pipeline body.

[0039] In a preferred embodiment of this application, the cross-section of the fixing member 1-1 is larger than the cross-section of the end of the pipeline body 1 connected to the fixing member 1-1; this can better fix the pipeline body 1.

[0040] In a preferred embodiment of this application, at least one first groove 1-2 is provided on the side of the pipeline body 1 near the detector. The first groove 1-2 is provided along the extension direction of the pipeline and is located on the periphery of the detector. By providing the first groove 1-2, the influence of external light on the detection structure of the detection device can be reduced. The height of the first groove 1-2 accounts for approximately 20%-80% of the pipeline wall thickness in the contact area, preferably 40%-60%.

[0041] In this embodiment, the first groove 1-2 is disposed on the periphery of the detection unit. When external light enters the pipe body 1 from the gap in the housing 2, the multiple first grooves 1-2 at the bottom of the pipe body 1 can reduce the influence of interfering light on the light received by the detection unit after reflection and refraction. The light is reflected multiple times in the first groove 1-2 as shown in the reference. Figure 7 The arrow shown.

[0042] Figure 2 and Figure 3 As shown, this application embodiment also provides a medical blood detection device, including a detector and the medical tubing described in any of the first aspects;

[0043] The detector includes a housing 2 and a detection unit 2-10 disposed in the housing, and the detection unit 2-10 detects the parameters of the liquid in the pipeline;

[0044] The upper surface of the housing 2 is provided with a second groove 2-14 and a fixing mechanism 2-2. The second groove 2-14 is used to install the pipeline. One end of the fixing mechanism 2-2 is movably connected to one side of the second groove 2-14, and the other end of the fixing mechanism 2-2 can rotate around one end of the fixing mechanism 2-2. The fixing mechanism 2-2 covers the upper surface of the pipeline.

[0045] In one embodiment of this application, when the cross-section of the pipe body 1 corresponding to the planar structure 1-3 is larger than the cross-section of the other pipe bodies 1, a third groove is provided in the second groove 2-14, and the planar structure on one side of the pipe body 1 cooperates with the third groove to fix the pipe.

[0046] like Figure 2 As shown, when the cross-section of the pipe body 1 corresponding to the planar structure is smaller than the cross-section of other pipe bodies 1, a boss 2-1 is provided in the second groove 2-14, and the planar structure on one side of the pipe body 1 cooperates with the boss 2-1 to fix the pipe.

[0047] The detector 2-10 includes a photoelectric detection unit and an infrared detection unit. The photoelectric detection unit is used to detect blood oxygen saturation, hematocrit, and hemoglobin, etc., and the infrared detection unit is used to detect blood temperature.

[0048] In this embodiment, the fixing mechanism 2-2 has an arc-shaped structure, and the tube body 1 is made of transparent material. The fixing mechanism 2-2 covers the upper surface of the tube body 1. The fixing mechanism 2-2 can rotate around its other end. When the tube 1 needs to be removed, the other end of the fixing mechanism 2-2 is rotated around one end of the fixing mechanism 2-2 toward the end away from the detection part to remove the tube body 1. More specifically, one end of the fixing mechanism 2-2 is connected to the housing 2 via a shaft (not shown), and the other end of the fixing mechanism 2-2 is fixed to the housing 2 via a buckle or slot. After the fixing mechanism 2-2 fixes the tube body 1, the tube body 1 is covered by the fixing mechanism 2-2 and the housing 2, preventing external light from entering the housing 2 and avoiding affecting the operation of the photoelectric detection part. Furthermore, the fixing structure 2-2 further fixes the tube body 1 to avoid measurement errors caused by movement during blood measurement.

[0049] In addition, in this embodiment, an observation window 2-2-1 is provided on the fixing mechanism 2-2. The blood flow in the pipeline body 1 can be observed through the observation window 2-2-1 for more accurate blood detection. Specifically, the observation window 2-2-1 has an open structure. More specifically, the observation window 2-2-1 is located in the area of ​​the fixing mechanism 2-2 away from the detection unit to reduce the interference of light passing through the observation window 2-2-1 with the operation of the detection unit.

[0050] In another embodiment of this application, such as Figure 4As shown, the photoelectric detection unit includes a photoelectric transmitter 2-3 and a photoelectric receiver 2-4; a boss 2-1 is provided in the second groove 2-14, and a first chamber 2-11, a second chamber 2-12 and a third chamber 2-13 are provided at intervals in the housing 2 corresponding to the boss 2-1; wherein, the cross-section of the pipe body 1 provided on the boss 2-1 is smaller than the cross-section of the pipe body 1 not provided on the boss 2-1.

[0051] A photoelectric transmitter 2-3 is provided in the first chamber 2-11, a photoelectric receiver 2-4 is provided in the second chamber 2-12, and an infrared detector 2-5 is provided in the third chamber 2-13.

[0052] In this embodiment, the photoelectric transmitter 2-3, photoelectric receiver 2-4, and infrared detector 2-5 are placed in different chambers to avoid interference caused by light refraction within the same chamber, thus making blood measurements more accurate. Furthermore, the second groove 2-9 is an arc shape that matches the tubing body 1. A boss 2-1 is provided in the second groove 2-9, allowing the photoelectric detection unit and the infrared detection unit to be placed within the boss 2-1. The upper surface of the boss 2-1 is flat, and the tubing body 1 is placed on top of the boss 2-1. The surface of the tubing body 1 in contact with the boss 2-1 is a flat surface that matches the boss 2-1. Because the emission window of the detection unit is flat, the flush placement between the boss 2-1 and the tubing body 1 reduces the distance between them, minimizing light attenuation caused by air passage and avoiding errors due to insufficient light intensity. Additionally, the boss 2-1 prevents the tubing body 1 from being placed in the second groove 2-9 with incorrect orientation, thus avoiding inaccurate detection results due to incorrect blood flow direction caused by incorrect orientation.

[0053] Additionally, it should be noted that due to manufacturing limitations, the detection section cannot be made into an arc shape that matches the circle of pipe 1. Therefore, parallel fitting of the outer shape at the contact point is more conducive to measurement and makes the measurement more accurate.

[0054] In another embodiment of this application, the first chamber 2-11 and the second chamber 2-12 are arranged sequentially according to the blood flow direction in the pipeline 1, and the photoelectric transmitter 2-3 and the photoelectric receiver 2-4 are at the same horizontal height. Because the photoelectric transmitter 2-3 is located in the first chamber 2-11 and the photoelectric receiver 2-4 is located in the second chamber 2-12, it is necessary to arrange the photoelectric transmitter 2-3 and the photoelectric receiver 2-4 adjacent to each other and at the same horizontal height to better enable the photoelectric receiver 2-4 to receive the signal emitted by the photoelectric transmitter 2-3. This arrangement of the photoelectric transmitter 2-3 and the photoelectric receiver 2-4 allows for more accurate measurements and avoids interference caused by light refraction within the same chamber.

[0055] In another embodiment of this application, such as Figures 4-7 As shown, the inner top of the first chamber 2-11, the inner top of the second chamber 2-12, and the inner top of the third chamber 2-13 are respectively provided with a first transparent protective element 2-6, a second transparent protective element 2-7, and a third transparent protective element 2-8. These elements are used to prevent foreign objects from falling into the first chamber 2-11, the second chamber 2-12, and the third chamber 2-13. Additionally, the infrared detector 2-5 transmits infrared light through the third transparent protective element 2-8 and the tubing 1 to detect the temperature of the blood in the tubing 1. The photoelectric transmitter 2-3 transmits photoelectric signals, which are transmitted through the first transparent protective element 2-6 and the blood in the tubing 1, and then received by the photoelectric receiver 2-4 to detect the blood oxygen saturation of the blood in the tubing 1.

[0056] In other words, a transparent protective element is provided above each chamber. The transparent protective element can be made of transparent materials such as glass (PMMA) or PC board, with glass being preferred. The transparent protective element and the housing 2 can be fixed by ultrasonic welding, integral molding, or bonding. If the first transparent protective element 2-6, the second transparent protective element 2-7, and the third transparent protective element 2-8 are fixed in the housing 2 by bonding, then the first transparent protective element 2-6, the second transparent protective element 2-7, and the third transparent protective element 2-8 need to be fixed in the housing through their respective mounting slots (not shown).

[0057] The protective element is set to transparent in this application mainly to avoid the protective element affecting the internal signal transmission between the photoelectric transmitter 2-3 and the photoelectric receiver 2-4.

[0058] In another embodiment of this application, such as Figure 5 As shown, the center distance D2 between the photoelectric transmitting unit and the photoelectric receiver 2-4 is less than the center distance D1 between the first transparent protective member 2-6 and the second transparent protective member 2-7.

[0059] In other words, the distance between the photoelectric transmitter 2-3 and the photoelectric receiver 2-4 is smaller than the distance between the first transparent protective element 2-6 and the second transparent protective element 2-7. This arrangement allows the light to travel a shorter distance and be less affected by interference, thus improving its accuracy.

[0060] In another embodiment of this application, the photoelectric transmitter 2-3 and the photoelectric receiver 2-4 are arranged along the blood flow direction of the tube 1 and have the same diameter. The ratio of the center distance between the photoelectric transmitter 2-3 and the photoelectric receiver 2-4 to the diameter is between 1.1 and 1.5. This allows the photoelectric receiver 2-4 to better receive the signal emitted by the photoelectric transmitter 2-3.

[0061] In another embodiment of this application, an elastic element 2-2-2 is provided on the opposite side of the fixing mechanism 2-2 and the pipeline body 1; when the pipeline body 1 is fixed by the fixing mechanism 2-2, the elastic element 2-2-2 comes into contact with the pipeline 1 and undergoes elastic deformation to fix the pipeline body 1.

[0062] In this embodiment, the top of the fixing mechanism 2-2 is provided with an elastic element 2-3. After the first fixing mechanism 2-2 fixes the pipeline body 1, the elastic element 2-2-2 will come into contact with the pipeline body 1. After the pipeline body 1 is fixed in the first groove 1-2 by the first fixing mechanism 2-2, the elastic element 2-2-2 can further fix the pipeline body 1, avoiding measurement deviation caused by the pipeline body 1 moving upward due to vibration or other conditions. When specifically detecting blood parameters, during the process of placing the pipeline body 1 into the first groove 1-2, the side stops of the pipeline body 1 slide into the designated position along the second groove 2-9 to complete the initial fixation of the pipeline body 1. At this time, the flat part of the pipeline body 1 fits against the protrusion. Then, the fixing mechanism 2-2 is flipped and fastened to the housing 2. The elastic element 2-2-2 at the top of the fixing mechanism 2-2 has a certain elastic expansion and contraction capacity. After the fixing mechanism 2-2 is fastened, the elastic element 2-2-2 abuts against the pipeline 1 and undergoes a certain degree of elastic deformation to achieve the fixation of the pipeline body 1.

[0063] As a preferred embodiment of this application, the pipeline body 1 is provided with two fixing members 1-1, and the end of the housing 2 is provided with a fourth groove at the corresponding position of the fixing member 1-1. Part of the fixing member 1-1 is disposed in the corresponding fourth groove to fix the pipeline 1. The cross-section of the two fixing members 1-1 gradually decreases along the downward direction of the fourth groove. In addition, the members provided on both sides of the housing 2 provide shading from both sides, which can also reduce the influence of external light on the detection structure of the detection device.

[0064] In this embodiment of the application, by setting a fixing stop 1-1 on the pipe body 1, the pipe body 1 can be further fixed in the second groove 2-9. The distance between the two fixing stops 1-1 is the length of the housing 2 along the pipe body 1. By locking part of the fixing stops 1-1 in the fourth groove, the pipe body 1 can be further fixed. The cross-section of the two fixing stops 1-1 gradually decreases along the housing 2 from top to bottom. In this way, the stop can be slid into the designated position of the fourth groove more quickly through the side wall of the fixing stops 1-1.

[0065] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application 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 therein. 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 this application.

Claims

1. A medical tubing, characterized in that, include: The pipeline body has two fixed stops spaced apart at its ends; One side wall of the pipeline body between the two fixed stops is a planar structure. The cross-section of the pipeline body corresponding to the planar structure is different from the cross-section of the other pipeline bodies. A detector is attached to the side of the planar structure away from the pipeline body. The detector is used to detect the liquid in the pipeline body.

2. The medical tubing as described in claim 1, characterized in that, The cross-section of the fixing member is larger than the cross-section of the end of the pipeline body connected to the fixing member.

3. The medical tubing as described in claim 1, characterized in that, At least one first groove is provided on the side of the pipeline body near the detector. The first groove is provided along the extension direction of the pipeline and is located on the periphery of the detector.

4. A medical liquid detection device, characterized in that, Includes a detector and medical tubing as described in any one of claims 1 to 3; The detector includes a housing and a detection unit disposed in the housing, and the detection unit detects parameters of the liquid in the pipeline; The upper surface of the housing is provided with a second groove and a fixing mechanism. The second groove is used to install the pipeline. One end of the fixing mechanism is movably connected to one side of the second groove, and the other end of the fixing mechanism can rotate around one end of the fixing mechanism. The fixing mechanism covers the upper surface of the pipeline. When the cross-section of the pipe body corresponding to the planar structure is larger than the cross-section of other pipe bodies, a third groove is provided in the second groove, and the planar structure on one side of the pipe body cooperates with the third groove to fix the pipe. When the cross-section of the pipe body corresponding to the planar structure is smaller than the cross-section of other pipe bodies, a boss is provided in the second groove, and the planar structure on one side of the pipe body cooperates with the boss to fix the pipe.

5. The liquid detection device as described in claim 4, characterized in that; The detection unit includes a photoelectric transmitter and a photoelectric receiver; The lower surface of the pipeline has a first chamber and a second chamber arranged sequentially on the same side of the housing at intervals. A photoelectric transmitter is installed in the first chamber, and a photoelectric receiver is installed in the second chamber.

6. The liquid detection device as described in claim 5, characterized in that; The detection unit also includes an infrared detector; The housing also includes a third chamber, which is arranged adjacent to and spaced apart from the second chamber. An infrared detector is installed in the third chamber. The distance between the third chamber and the second chamber is different from the distance between the second chamber and the first chamber.

7. A liquid detection device as described in claim 5, characterized in that, The top inner sides of the first chamber, the second chamber, and the third chamber are each provided with a first transparent protective element, a second transparent protective element, and a third transparent protective element, respectively. The first transparent protective element, the second transparent protective element, and the third transparent protective element are used to prevent foreign objects from falling into the first chamber, the second chamber, and the third chamber, respectively.

8. A liquid detection device as described in claim 5, characterized in that, The photoelectric transmitter and the photoelectric receiver are the same length along the blood flow direction of the tubing, and the ratio of the center distance between the photoelectric transmitter and the photoelectric receiver to the length is between 1.1 and 1.

5.

9. A liquid detection device as described in claim 4, characterized in that, An elastic element is provided on the opposite side of the fixing mechanism and the pipeline; when the pipeline is fixed by the fixing mechanism, the elastic element comes into contact with the pipeline and undergoes elastic deformation to fix the pipeline.

10. The liquid detection device as described in claim 4, characterized in that, The end of the housing is provided with a fourth groove corresponding to the position of the stop. Part of the stop is disposed in the corresponding fourth groove to fix the pipeline. The cross-section of the two stops gradually decreases in the downward direction along the fourth groove.

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