Temperature sensor positioning isolation assembly

Abstract

The utility model provides a temperature sensor positioning isolation assembly which comprises a positioning sleeve, a locking piece and an isolation sleeve, the positioning sleeve is suitable for penetrating through a puncture face of a liquid storage bag, and a containing cavity suitable for being sleeved with the head end of a temperature sensor is formed in the positioning sleeve; the locking piece is suitable for being arranged on the positioning sleeve in a sleeving manner and locking the head end of the temperature sensor on the positioning sleeve; the isolation sleeve is coaxially fixed at the tail end of the positioning sleeve, the isolation sleeve is suitable for being arranged outside a probe of the temperature sensor in a sleeving mode, a certain interval exists between the isolation sleeve and the probe, and a liquid inlet through hole is formed in the pipe wall of the isolation sleeve; when the temperature sensor is fixed on the liquid storage bag through the positioning sleeve, the isolation sleeve forms isolation between the probe and the liquid storage bag. The isolation sleeve is arranged to form a buffer space on the periphery of the temperature probe, so that the tip of the probe is always located in the center area of freeze-thaw media, heat conduction interference caused by direct contact between the probe and the bag wall is avoided, it is ensured that the temperature sensor collects the temperature of a medium body in real time, and measurement errors are reduced.

Description

Technical Field

[0001] This utility model belongs to the field of biological product measurement, specifically relating to a temperature sensor positioning and isolation component. Background Technology

[0002] In the freeze-thaw process of biopharmaceuticals and pharmaceuticals, accurate temperature monitoring is a crucial step in ensuring product quality. Traditional temperature monitoring methods typically involve directly inserting a temperature sensor probe into the freeze-thaw bag for measurement. However, since freeze-thaw bags are often made of flexible thin film material, the probe is easily displaced by the flowing medium during the liquid freeze-thaw process. This can cause the probe tip to come into contact with the inner wall of the freeze-thaw bag. When the probe is in direct contact with the low-temperature bag wall, the measured temperature value will deviate from the actual temperature of the medium. Furthermore, local heat conduction at the contact point can create an abnormal temperature gradient, further exacerbating the distortion of the measurement data. Utility Model Content

[0003] The present invention aims to provide a temperature sensor positioning and isolation component to solve the above-mentioned technical problems.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is: to provide a temperature sensor positioning and isolation assembly for fixing the temperature sensor to a liquid storage bag, comprising:

[0005] A positioning sleeve is suitable for penetrating the puncture surface of the liquid storage bag, and the positioning sleeve has an internal cavity suitable for fitting the head end of the temperature sensor.

[0006] A locking element, adapted to be sleeved on the positioning sleeve and to lock the temperature sensor head end onto the positioning sleeve; and

[0007] An isolation sleeve is coaxially fixed to the tail end of the positioning sleeve. The isolation sleeve is adapted to be sleeved on the probe of the temperature sensor and is spaced apart from the probe. A liquid inlet hole is opened on the tube wall of the isolation sleeve.

[0008] When the temperature sensor is fixed to the liquid storage bag by the positioning sleeve, the isolation sleeve forms an isolation between the probe and the liquid storage bag.

[0009] In this embodiment, an isolation sleeve is provided to form a buffer space around the temperature probe, so that the probe tip is always in the central area of ​​the freeze-thaw medium, avoiding direct contact between the probe and the bag wall that could cause thermal conduction interference, ensuring that the temperature sensor can collect the temperature of the medium body in real time, and greatly reducing measurement errors.

[0010] In one embodiment, the head end of the positioning sleeve is provided with an inner chamfer, and a sealing element is provided at the inner chamfer;

[0011] The sealing element is fitted onto the outer wall of the temperature sensor, and when the locking element is connected to the positioning sleeve, the sealing element elastically seals between the inner chamfer of the temperature sensor and the positioning sleeve.

[0012] In this embodiment, a sealing element is provided between the locking element and the positioning sleeve to ensure the airtightness of the liquid storage bag, effectively preventing external environmental pollutants from entering and contaminating the freeze-thaw medium, while preventing leakage of the freeze-thaw medium inside the liquid storage bag.

[0013] In one embodiment, the inner wall of the positioning sleeve is provided with an inner shoulder, and the inner shoulder is provided with an inclined surface suitable for abutting against the head end of the temperature sensor.

[0014] In one embodiment, the end of the isolation sleeve is detachably inserted into the positioning sleeve.

[0015] In one embodiment, the positioning sleeve is provided with a positioning structure adapted to abut against the puncture surface, the positioning structure being an outer shoulder integrally formed on the side wall of the positioning sleeve.

[0016] In one embodiment, the positioning sleeve is provided with a positioning structure adapted to abut against the puncture surface, the positioning structure being a protrusion fixed on the outer wall of the positioning sleeve and extending radially.

[0017] In one embodiment, the positioning sleeve and the locking member are provided with matching threads. Attached Figure Description

[0018] Figure 1 This is an assembly diagram of the temperature sensor positioning and isolation component of this utility model;

[0019] Figure 2 This is a schematic diagram of the temperature sensor positioning and isolation component of this utility model;

[0020] Figure 3 for Figure 1 A cross-sectional view of the temperature sensor positioning isolation component along direction A;

[0021] Figure 4 for Figure 3 A magnified view of part A in the middle.

[0022] Explanation of reference numerals in the attached figures:

[0023] 01-Liquid reservoir bag; 011-Puncture surface;

[0024] 02-Isolation sleeve; 022-Liquid inlet port;

[0025] 03-Positioning sleeve;

[0026] 04-Locking components;

[0027] 05-Temperature sensor; 051-Probe; 052-Temperature sensor tip;

[0028] 06-Sealing components. Detailed Implementation

[0029] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0030] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0031] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", 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 limitations on the present invention.

[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0033] In the field of biopharmaceuticals and cryogenic storage, the freeze-thaw process is a crucial step in maintaining the activity of biopharmaceuticals. In existing technologies, the metal probe of a temperature sensor is typically inserted directly into the silicone puncture surface of a freeze-thaw bag to measure the freeze-thaw medium inside. Because the freeze-thaw bag is made of flexible material (such as polyethylene or multilayer co-extruded film), the flow of the medium during measurement can easily cause the probe to deviate, resulting in direct contact between the probe tip and the inner wall of the bag. In this case, the probe is affected by the temperature of the bag wall and its heat exchange with the outside environment, leading to a significant error between the measured temperature and the actual temperature of the freeze-thaw medium. This results in severe data distortion and an inability to accurately control temperature changes, potentially causing cell inactivation. To address these technical problems, this application provides a temperature sensor positioning and isolation component. This component positions the probe within the storage bag and creates a gap between the probe and the bag by installing an isolation sleeve over the probe. This prevents the probe from contacting the bag wall, eliminates interference from the bag, ensures measurement accuracy, and avoids measurement distortion.

[0034] To solve the above-mentioned technical problems, this utility model provides a temperature sensor positioning and isolation component, please refer to the appendix. Figure 1 To be continued Figure 4 The present invention provides a temperature sensor positioning and isolation assembly for fixing a temperature sensor 05 onto a liquid storage bag 01. The assembly includes a positioning sleeve 03, a locking member 04, and an isolation sleeve 02. The positioning sleeve 03 and locking member 04 fix the isolation sleeve 02 within the liquid storage bag 01, forming an isolation around the probe 051 to ensure a certain gap between the probe 051 and the bag wall. Specifically, the positioning sleeve 03 is adapted to penetrate the puncture surface 011 of the liquid storage bag 01, and an accommodating cavity is provided inside the positioning sleeve 03 for mounting the temperature sensor head end 052. The locking member 04 is adapted to be fitted onto the positioning sleeve 03 and lock the temperature sensor head end 052 onto the positioning sleeve 03, thereby fixing the temperature sensor head end 052 onto the puncture surface 011. An isolation sleeve 02 is coaxially fixed to the tail end of a positioning sleeve 03. The isolation sleeve 02 is adapted to be fitted over the probe 051 of the temperature sensor 05, with a certain distance between them. During temperature measurement, the isolation sleeve 02 is placed inside the storage bag 01. A liquid inlet hole 022 is provided on the wall of the isolation sleeve 02 to allow the freeze-thaw medium to flow into the isolation sleeve 02 and contact the probe 051, so that the probe 051 can perform temperature measurement. When the temperature sensor 05 is fixed to the storage bag 01 through the positioning sleeve 03, the isolation sleeve 02 forms an isolation between the probe 051 and the storage bag 01. In use, the isolation sleeve 02 and the positioning sleeve 03 are inserted into the liquid storage bag 01. The isolation sleeve 02 is placed inside the liquid storage bag 01. The freeze-thaw medium flows into the isolation sleeve 02 through the liquid inlet hole 022. Then, the temperature sensor 05 is assembled into the positioning sleeve 03. The probe 051 of the temperature sensor 05 extends into the isolation sleeve 02. The head end 052 of the temperature sensor is then fastened to the positioning sleeve 03 by the locking member 04.

[0035] In this embodiment, the temperature sensor 05 is positioned by the positioning sleeve 03 and the locking member 04. The isolation sleeve 02 forms an isolation between the probe 051 of the temperature sensor and the liquid storage bag 01. The probe 051 is positioned inside the isolation sleeve 02 and always maintains a certain distance from it, ensuring that the probe 051 is always in good contact with the freeze-thaw medium and avoiding measurement errors caused by interference from the liquid storage bag 01.

[0036] In one embodiment, please refer to the appendix as well. Figure 3 and attached Figure 4 A sealing element 06 is provided between the positioning sleeve 03 and the head end 052 of the temperature sensor. Specifically, the head end of the positioning sleeve 03 has an inner chamfer, and the sealing element 06 is provided at the inner chamfer. The sealing element 06 is fitted onto the outer wall of the temperature sensor 05. When the locking element 04 is connected to the positioning sleeve 03, the sealing element 06 elastically seals between the temperature sensor 05 and the inner chamfer of the positioning sleeve 03. The sealing element 06 has a conical sealing ring structure for easy assembly, and is suitable for forming an elastic interference fit with the inner chamfer of the positioning sleeve 03. Preferably, the sealing element 06 is made of silicone. During installation, the sealing element 06 is first placed at the inner chamfer of the positioning sleeve 03, and then the locking element 04 is installed to secure the sealing element 06 between the positioning sleeve 03 and the temperature sensor 05.

[0037] In this embodiment of the application, by setting the sealing element 06, it is possible to prevent small external contaminants from entering the liquid storage bag 01 through the positioning isolation component, and at the same time, it is also possible to avoid leakage of the internal freeze-thaw medium.

[0038] In one embodiment, please refer to the appendix as well. Figure 3 and attached Figure 4 The inner wall of the positioning sleeve 03 is provided with an inner shoulder, and the inner shoulder is provided with an inclined surface suitable for abutting the head end 052 of the temperature sensor, which is used to further limit the temperature sensor 05.

[0039] In one embodiment, the end of the isolation sleeve 02 is detachably inserted into the positioning sleeve 03. Preferably, the inner wall of the isolation sleeve and the outer wall of the isolation sleeve 02 are provided with matching threads. In use, the isolation sleeve 02 is first fixed onto the positioning sleeve 03, and then inserted into the liquid storage bag 01.

[0040] In one embodiment, the positioning sleeve 03 is provided with a positioning structure suitable for abutting the puncture surface 011. The positioning structure is an outer shoulder integrally formed on the side wall of the positioning sleeve 03. When the positioning isolation component is installed, the end face of the outer shoulder abuts against the puncture surface 011 of the liquid storage bag 01, further limiting the positioning sleeve 03, and further limiting the temperature sensor 05 in its length direction.

[0041] In one embodiment, the positioning sleeve 03 is provided with a positioning structure suitable for abutting the puncture surface 011. The positioning structure is a protrusion fixed on the outer wall of the positioning sleeve 03 and extending radially.

[0042] In one embodiment, the protrusion is integrally formed on the positioning sleeve 03. Optionally, the protrusion is an annular structure, or multiple block-shaped protrusions are spaced apart along the circumferential direction on the outer wall of the positioning sleeve 03.

[0043] In one embodiment, the protrusion is detachably assembled with the positioning sleeve 03. Specifically, a nut can be threaded onto the positioning sleeve 03 to form the protrusion. During installation, the nut abuts against the puncture surface 011 of the liquid storage bag 01 to limit the positioning sleeve 03.

[0044] In one embodiment, the positioning sleeve 03 and the locking member 04 are provided with matching threads.

[0045] In one embodiment, liquid inlet holes 022 are spaced apart along the circumferential direction on the side wall of the isolation sleeve 02.

[0046] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A temperature sensor positioning and isolation assembly for fixing a temperature sensor to a liquid storage bag, characterized in that, include: A positioning sleeve is suitable for penetrating the puncture surface of the liquid storage bag, and the positioning sleeve has an internal cavity suitable for fitting the head end of the temperature sensor. A locking element, adapted to be sleeved on the positioning sleeve and to lock the temperature sensor head end onto the positioning sleeve; and An isolation sleeve is coaxially fixed to the tail end of the positioning sleeve. The isolation sleeve is adapted to be sleeved on the probe of the temperature sensor and is spaced apart from the probe. A liquid inlet hole is opened on the tube wall of the isolation sleeve. When the temperature sensor is fixed to the liquid storage bag by the positioning sleeve, the isolation sleeve forms an isolation between the probe and the liquid storage bag.

2. The temperature sensor positioning isolation assembly of claim 1, wherein, The positioning sleeve has an inner chamfer at its head end, and a sealing element is provided at the inner chamfer. The sealing element is fitted onto the outer wall of the temperature sensor, and when the locking element is connected to the positioning sleeve, the sealing element elastically seals between the inner chamfer of the temperature sensor and the positioning sleeve.

3. The temperature sensor positioning and isolation assembly as described in claim 1, characterized in that, The inner wall of the positioning sleeve is provided with an inner shoulder, and the inner shoulder has an inclined surface suitable for abutting the head end of the temperature sensor.

4. The temperature sensor positioning isolation assembly of claim 1, wherein, The end of the isolation sleeve is detachably inserted into the positioning sleeve.

5. The temperature sensor positioning and isolation assembly as described in claim 1, characterized in that, The positioning sleeve is provided with a positioning structure suitable for abutting the puncture surface, and the positioning structure is an outer shoulder platform integrally formed on the side wall of the positioning sleeve.

6. The temperature sensor positioning isolation assembly of claim 1, wherein, The positioning sleeve is provided with a positioning structure suitable for abutting the puncture surface. The positioning structure is a protrusion fixed on the outer wall of the positioning sleeve and extending radially.

7. The temperature sensor positioning isolation assembly of claim 1, wherein, The positioning sleeve and the locking element are provided with matching threads.

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