WO2024000729A1 - 一种具有预加热功能的加样针装置 - Google Patents

一种具有预加热功能的加样针装置 Download PDF

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Publication number
WO2024000729A1
WO2024000729A1 PCT/CN2022/110210 CN2022110210W WO2024000729A1 WO 2024000729 A1 WO2024000729 A1 WO 2024000729A1 CN 2022110210 W CN2022110210 W CN 2022110210W WO 2024000729 A1 WO2024000729 A1 WO 2024000729A1
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sample adding
heating
sleeve
needle
sample
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PCT/CN2022/110210
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English (en)
French (fr)
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刘建
吴冬
苗新利
吴国银
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苏州长光华医生物医学工程有限公司
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Publication of WO2024000729A1 publication Critical patent/WO2024000729A1/zh

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
    • G01N35/10—Devices for transferring samples or any liquids to, in, or from, the analysis apparatus, e.g. suction devices, injection devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
    • G01N2035/00346—Heating or cooling arrangements
    • G01N2035/00425—Heating or cooling means associated with pipettes or the like, e.g. for supplying sample/reagent at given temperature

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  • the present application belongs to the technical field of medical devices, and in particular, relates to a sample adding needle device with a preheating function.
  • samples and reagents need to fully react in an environment of 37 ⁇ 0.5°C, so that the antigen or antibody to be tested is fully captured.
  • Reagents need to be refrigerated, generally at 2 to 8°C. The temperature of most samples is around 20°C, and the amount of reagents will be much greater than the amount of samples.
  • reaction container reaction cup
  • samples and reagents into the reaction cup through a sample needle for heating.
  • the heating path is: the heater heats the incubation plate, the incubation plate heats the air in the plate, the air heats the reaction cup, and the reaction cup heats the sample and reagents.
  • the rate of heat transfer is low, which results in a long time for the sample and reagent to heat up to 37°C, which generally takes 5 to 10 minutes. On the one hand, it will affect the degree of reaction between the sample and the reagent; on the other hand, it will prolong the time for detection results.
  • This application proposes a loading needle with a preheating function, and a heating device is designed on the needle.
  • the function of the sampling needle absorb a certain amount of sample or reagent and add it to the reaction vessel. Within a few seconds between suction and discharge, the sample needle can quickly heat up the reagent or sample to reach or approach 37°C, so that when the reagent or sample cup is added to the reaction cup, the temperature can be quickly Raise the temperature to 37 ⁇ 0.5°C.
  • the technical problem to be solved by the present invention is that the rate of heat transfer is low, resulting in a long time for the samples and reagents to heat up to 37°C.
  • a kind of heat transfer device with a preheating function is provided. Sample needle device.
  • a sample adding needle device with a preheating function including:
  • the sampling needle including the needle tip at the lower end, the needle tail at the upper end and the rod in the middle, is used to absorb a certain amount of sample or reagent and add it to the reaction vessel;
  • the heating jacket is wrapped around the outside of the sampling needle
  • Thermal insulation sleeve is wrapped and arranged on the outer side of the heating jacket
  • the outer casing is wrapped around the outer side of the thermal insulation casing, and is made of conductive metal;
  • the heating plate is arranged on the upper end of the sample adding needle, and the heating jacket penetrates the heating plate;
  • a heater is provided on the top of the heating plate, and the heater is used to heat the heating plate;
  • the wiring thread sleeve is arranged on the upper end of the sample adding needle and is electrically connected to the outer sleeve.
  • a heat preservation upper cover is provided on the top of the heater.
  • a heat preservation lower cover is provided on the bottom surface of the heating plate.
  • a temperature sensor and a temperature switch are installed on the heating plate, and the temperature sensor is used to detect the temperature of the heating plate.
  • a wiring threaded hole is provided on the side wall of the outer tube.
  • a first uniform temperature bath is provided on the outer wall of the upper end of the heating jacket.
  • a second uniform temperature bath is provided on the outer wall of the middle part of the heating jacket, and the length and width of the second uniform temperature bath are smaller than the first uniform temperature bath. length and width dimensions.
  • the outer side wall of the lower end of the heating jacket is configured as a smooth cylindrical surface.
  • the heating jacket, the heat-insulating insulating sleeve, and the lower port of the outer sleeve are provided with a first potting glue.
  • the upper ports of the heat-insulating insulating sleeve and the outer sleeve are provided with a second potting glue, and the second potting glue connects the heating plate and the insulation Thermal insulation casing and outer casing isolation.
  • a heating device is designed on the sample needle. Since the inner cavity of the sample needle is in direct contact with the liquid (sample or reagent), the temperature of the liquid rises quickly;
  • the heating surface of the sample needle is controlled by area, so that the sample needle is heated evenly along the entire length;
  • the heating system has temperature control and over-temperature protection functions
  • the arrangement of the thermal insulation upper and lower covers and the thermal insulation sleeve makes the device have a good thermal insulation effect
  • Adding a metal package to the outermost layer of this device can greatly improve the sensitivity and accuracy of liquid level detection.
  • Figure 1 is a schematic diagram of the overall structure of an embodiment of the present application.
  • Figure 2 is a schematic diagram and an enlarged view of the internal structure of the embodiment of the present application.
  • FIG. 3 is a schematic diagram of the temperature equalization structure of the heating jacket according to the embodiment of the present application.
  • connection should be understood in a broad sense.
  • connection or integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two components.
  • This embodiment provides a sample injection needle device with a preheating function. Referring to Figure 1, it includes:
  • the sampling needle 1 includes a needle tip 101 at the lower end, a needle tail 102 at the upper end, and a stem in the middle;
  • the sampling needle 1 is set in a long tube shape and is used to absorb a certain amount of liquid sample or reagent and discharge it into the reaction cup.
  • the needle tip 101 directly enters below the liquid level of the reagent tube to aspirate the sample, and the needle end 102 is connected to the pump valve pipeline.
  • 316L stainless steel is generally used.
  • the heating sleeve 2 is wrapped around the outer side of the rod in the middle of the sampling needle 1.
  • the heating sleeve 2 is made of a material with good thermal conductivity, usually pure copper.
  • the heating sleeve 2 and the sampling needle 1 are made of silver solder. Welded together by argon arc welding, the welding structure has high strength and the welding point has good thermal conductivity.
  • the heating jacket 2 conducts heat to the sample adding needle 1 and performs heating operation on the sample adding needle 1.
  • a heat-insulating insulating sleeve 3 is wrapped around the outer side of the heating jacket 2, and an outer sleeve 4 is wrapped around the outer side of the heat-insulating insulating sleeve 3.
  • the outer sleeve 4 plays a protective role, and the heat-insulating insulating sleeve 3 is used for heat preservation. This allows as much heat on the heating jacket 2 to be conducted to the sample adding needle 1 as possible. At the same time, the heat insulation function of the heat-insulating sleeve 3 isolates the outer sleeve 4 from the heating jacket 2 and will not burn your hands.
  • the lower ports of the heating jacket 2, the heat-insulating insulating sleeve 3, and the outer sleeve 4 and the upper ports of the heat-insulating insulating sleeve 3 and the outer sleeve 4 are potted with glue.
  • the second potting glue 6 at the upper end connects the heating plate 9 with The heat-insulating insulating casing 3 and the outer casing 4 are isolated and play the role of insulation and heat insulation.
  • the potting glue needs to be selected with good insulation and high bonding strength, such as epoxy resin glue.
  • a heating plate 9 is provided at the upper end of the sample adding needle 1, and the sample adding needle 1 and the heating jacket 2 penetrate the heating plate 9, and are installed above the heating plate 9
  • the heater 12 is made of thin film resistor type, with adhesive on the surface. It is small in size, easy to install, and has high power density. During operation, the heater 12 heats the heating plate 9, the heating plate 9 transfers the heat to the heating mantle 2, and the heating mantle 2 then heats the sample needle 1.
  • the sample needle 1 absorbs the sample or reagent, it will heat the liquid in the cavity through the inner wall. Since the inner wall of the chamber of the sample needle 1 has a large contact area with the liquid, and the amount of liquid absorbed is relatively small, generally the maximum liquid volume is about 100uL, so the entire temperature rise process of the liquid is relatively fast.
  • the wiring threaded sleeve 13 is provided at the upper end of the sample adding needle 1 and is welded with the heating needle 1, with good conduction, and the wiring threaded sleeve 13 is connected to the heating needle 1.
  • a wiring threaded hole 401 is provided on the side wall of the outer casing 4. The wiring threaded hole 401 is welded to the outer casing 4, has good conduction, and is connected to the shielded ground terminal of the other end of the liquid level detection. Determine whether the tip of the needle is in contact with the liquid surface by detecting the capacitance value at both ends.
  • the outer tube 4 wraps the periphery of the sample suction needle 1 to improve the sensitivity when detecting small liquid volumes, thereby reducing the dead volume of the sample suction.
  • an upper thermal insulation cover 7 and a lower thermal insulation cover 8 are respectively installed above and below the heating plate 9 to insulate the entire heating system.
  • this embodiment is a sample adding needle device with a preheating function.
  • a temperature sensor 10 and a temperature switch 11 are installed on the heating plate 9.
  • the temperature sensor 10 can monitor the temperature of the heating plate 9. When the temperature exceeds the set value When the temperature is lower than the set value, the heater 12 works or increases the power to generate heat.
  • the entire temperature control system fails, if the heater 12 continues to work, causing the temperature of the heating plate 9 to be too high, then the temperature switch 11 will act, causing the heater 12 to stop working.
  • a first uniform temperature tank 201 is provided on the outer wall of the upper end (area a) of the heating jacket 2, and the middle outer wall of the heating jacket 2 ( Area b) is provided with a second uniform temperature tank 202.
  • the first uniform temperature tank 201 and the second uniform temperature tank 202 are arranged in a waist hole type, and the outer side wall (area c) of the lower end of the heating jacket 2 is arranged as Smooth cylindrical surface, the length and width of the second uniform temperature bath 202 are smaller than the length and width of the first uniform temperature bath 201. Since the upper area of the heating jacket 2 is close to the heating plate 9, the temperature will be slightly higher.
  • the entire heating jacket 2 The temperature is distributed in a gradient from top to bottom. In order to reduce the uneven heating of the liquid, some uniform temperature baths are opened in the higher temperature areas of the heating jacket to reduce the contact heating area between the heating jacket and the sample needle.
  • the first equalizing tank 201 in the upper area is opened larger and denser
  • the second equalizing tank 202 in the middle area is opened second, and there is no equalizing tank in the bottom area. In this way, the temperature of the sampling needle can be distributed more evenly, so that the liquid in the cavity of the sampling needle can be heated evenly.

Abstract

一种具有预加热功能的加样针装置，包括：加样针(1)，包括下端的针尖(101)、上端的针尾(102)和中间的杆部；加热套(2)，包裹设置在加样针(1)外侧；隔热绝缘套管(3)，包裹设置在加热套(2)的外侧面；外套管(4)，包裹设置在隔热绝缘套管(3)的外侧面，外套管(4)采用导电金属制成；加热板(9)，设置在加样针(1)上端部，且加热套(2)贯穿加热板(9)；加热器(12)，设置在加热板(9)顶部；接线螺纹套(13)，设置在加样针(1)上端部，且与加热套(2)导通。在加样针(1)上设计了加热装置，通过分区域对加样针(1)受热面进行控制，使加样针(1)在整个长度方向上受热均匀；加热系统具有温度控制与过温保护功能；具有良好的保温效果；最外层增加金属包裹，可极大提高液位探测的灵敏度与准确度。

Description

一种具有预加热功能的加样针装置 技术领域
本申请属于医疗器械技术领域，尤其是涉及一种具有预加热功能的加样针装置。
背景技术
在化学发光免疫设备的测试过程中，样本和试剂需要在37±0.5℃的环境下充分反应，由此使待测抗原或抗体被充分捕获。试剂需要冷藏，一般控制在2～8℃，大部样本的温度在20℃左右，试剂的量会远大于样本的量。目前绝大部分设备是将反应容器(反应杯)放置在温育盘内，通过加样针将样本和试剂加入到反应杯中加热。加热路径为：加热器对温育盘体进行加热，温育盘体对盘内空气加热，空气对反应杯加热，反应杯再对样本和试剂进行加热。热传递的速率较低，导致样本和试剂升温至37℃的时间较长，一般需要5～10分钟，一方面会影响样本与试剂的反应程度；另一方面会延长出检测结果的时间。
本申请提出了一种具有预加热功能的加样针装载，加样针上设计有加热装置。加样针的作用：吸取一定量的样本或试剂，加入到反应容器内。加样针在吸样与排样之间数秒钟的时间内，可将试剂或样本快速升温，使其达到或接近37℃，这样当试剂或样本杯加入到反应杯中时，就能很快升温至37±0.5℃。
发明内容
本发明要解决的技术问题是：热传递的速率较低，导致样本和试 剂升温至37℃的时间较长，为解决现有技术中升温速度慢的不足，从而提供一种具有预加热功能的加样针装置。
本发明解决其技术问题所采用的技术方案是：一种具有预加热功能的加样针装置，包括：
加样针，包括下端的针尖、上端的针尾和中间的杆部，用于吸取一定量的样本或试剂，加入到反应容器内；
加热套，包裹设置在加样针外侧；
隔热绝缘套管，包裹设置在加热套的外侧面；
外套管，包裹设置在隔热绝缘套管的的外侧面，外套管采用导电金属制成；
加热板，设置在加样针上端部，且加热套贯穿加热板；
加热器，设置在加热板顶部，所述加热器用于对加热板加热；
接线螺纹套，设置在加样针上端部，且与外套管导通连接。
优选地，本发明的一种具有预加热功能的加样针装置，所述加热器的顶部设置有保温上盖。
优选地，本发明的一种具有预加热功能的加样针装置，所述加热板底面设置有保温下盖。
优选地，本发明的一种具有预加热功能的加样针装置，所述加热板上安装有温度传感器和温度开关，所述温度传感器用于检测加热板的温度。
优选地，本发明的一种具有预加热功能的加样针装置，所述外套管的侧壁上设置有接线螺纹孔。
优选地，本发明的一种具有预加热功能的加样针装置，所述加热套上端部外侧壁设置有第一均温槽。
优选地，本发明的一种具有预加热功能的加样针装置，所述加热套中部外侧壁设置有第二均温槽，所述第二均温槽的长宽尺寸小于第一均温槽的长宽尺寸。
优选地，本发明的一种具有预加热功能的加样针装置，所述加热套下端部外侧壁设置为光滑圆柱面。
优选地，本发明的一种具有预加热功能的加样针装置，所述加热套、隔热绝缘套管、外套管下端口设置有第一灌封胶。
优选地，本发明的一种具有预加热功能的加样针装置，所述隔热绝缘套管、外套管的上端口设置有第二灌封胶，且第二灌封胶将加热板与隔热绝缘套管、外套管隔离。
本发明的有益效果是：在加样针上设计了加热装置，由于加样针内腔与液体(样本或试剂)直接接触，液体的温升快；
在加热套上设置多种尺寸的均温槽，通过分区域对加样针受热面进行控制，使加样针在整个长度方向上受热均匀；
通过在加热板上安装了温度传感器和温度开关，使得该加热系统具有温度控制与过温保护功能；
保温上下盖和隔热绝缘套管的设置使得本装置具有良好的保温效果；
在本装置的最外层增加金属包裹，可极大提高液位探测的灵敏度与准确度。
附图说明
下面结合附图和实施例对本申请的技术方案进一步说明。
图1是本申请实施例的整体结构示意图；
图2是本申请实施例的内部结构示意图及放大图；
图3是本申请实施例加热套的均温结构示意图。
图中的附图标记为：
1：加样针，101：针尖，102：针尾；
2：加热套，201：第一均温槽，202：第二均温槽；
3：隔热绝缘套管；
4：外套管，401：接线螺纹孔；
5：第一灌封胶；
6：第二灌封胶；
7：保温上盖；
8：保温下盖；
9：加热板；
10：温度传感器；
11：温度开关；
12：加热器；
13：接线螺纹套。
具体实施方式
需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。
在本申请的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请保护范围的限制。此外，术语“第一”、“第二”等仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”等的特征可以明示或者隐含地包括一个或者更多个该特征。在本发明创造的描述中，除非另有说明，“多个”的含义是两个或两个以上。
在本申请的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以通过具体情况理解上述术语在本申请中的具体含义。
下面将参考附图并结合实施例来详细说明本申请的技术方案。
实施例
本实施例提供一种具有预加热功能的加样针装置，参照图1，包括：
加样针1，包括下端的针尖101、上端的针尾102和中间的杆部；
加样针1设置为长管形，用于吸取一定量的液体样本或试剂，并 排到反应杯中。吸液时，针尖101直接进入试剂管液面以下进行吸样，针末端102与泵阀管路连接。为避免加样针1与样本或试剂反应，一般选用316L不锈钢材质。
参照图2，加热套2包裹设置在加样针1中间的杆部外侧，加热套2选用导热性能好的材料，一般选纯铜材料，加热套2与加样针1采用银钎料，用氩弧焊焊接在一起，焊接结构强度高，焊接处导热性好，加热套2将热量传导给加样针1，对加样针1进行加热操作。在加热套2的外侧面包裹设置隔热绝缘套管3，并在隔热绝缘套管3外侧面包裹设置外套管4，外套管4起到保护作用，隔热绝缘套管3用于保温，使得加热套2上的热量尽可能多的传导至加样针1，同时，隔热绝缘套管3的隔热功能使得外套管4与加热套2隔绝，不会烫手。加热套2、隔热绝缘套管3、外套管4的下端口和隔热绝缘套管3、外套管4的上端口均使用胶水灌封，上端的第二灌封胶6将加热板9与隔热绝缘套管3、外套管4隔离，起到绝缘隔热的作用。灌封胶水需要选取绝缘性好和粘接强度高的，如环氧树脂胶水。
优选地，本实施例的一种具有预加热功能的加样针装置，在加样针1上端部设置加热板9，且加样针1、加热套2贯穿加热板9，加热板9上方安装了加热器12，加热器12选用薄膜电阻型，表面带有背胶，体积小安装方便，功率密度大。工作时，加热器12给加热板9加热，加热板9将热量传递到加热套2上，加热套2再给加样针1进行加热。当加样针1吸取样本或试剂后，就会通过内壁给腔体内的液体加热。由于加样针1腔体内壁与液体接触面积大，而吸取的液量 相对较小一般最大液量在100uL左右，因此液体的整个温升过程较快。
优选地，本实施例的一种具有预加热功能的加样针装置，接线螺纹套13设置在加样针1上端部，且与加热针1焊接在一起，导通良好，接线螺纹套13与液位探测线的一端连接。外套管4的侧壁上设置有接线螺纹孔401，接线螺纹孔401与外套管4焊接在一起，导通良好，与液位探测的另一端屏蔽接地端连接。通过检测两端的电容值来判断针尖是否接触到液面。本实施例中，外套管4将吸样针1的外围包裹住可以提高小液量探测时的灵敏度，从而降低吸样的死体积。
优选地，本实施例的一种具有预加热功能的加样针装置，加热板9上下方各安装了保温上盖7和保温下盖8，对整个加热系统起保温作用。
优选地，本实施例的一种具有预加热功能的加样针装置，加热板9上安装了温度传感器10和温度开关11，温度传感器10可监测加热板9的温度，当温度超过设定值时，加热器停止或降功率工作；当温度低于设定值时，加热器12工作或加大功率工作发热。当整个温控系统故障时，如加热器12持续工作，使加热板9温度过高，这时温度11开关动作，使加热器12停止工作。
参照图3，优选地，本实施例的一种具有预加热功能的加样针装置，加热套2上端部(a区)外侧壁设置有第一均温槽201，加热套2中部外侧壁(b区)设置有第二均温槽202，在本实施例中，第一均温槽201、第二均温槽202设置为腰孔型，加热套2下端部外侧壁(c区)设置为光滑圆柱面，第二均温槽202的长宽尺寸小于第一均 温槽201的长宽尺寸，由于加热套2的上部区域与加热板9距离近，温度会稍微偏高一点，整个加热套2从上往下温度成梯度分布。为降低液体加热的不均匀性，在加热套温度较高区域开一些均温槽，以减少加热套和加样针的接触受热面积。上部区域的第一均温槽201开得大一些密一些，中间区域的第二均温槽202次之，底部区域不开均温槽。这样，加样针的温度就可以分布的较为均匀，从而使加样针腔体中的液体受热均匀。
以上述依据本申请的理想实施例为启示，通过上述的说明内容，相关工作人员完全可以在不偏离本项申请技术思想的范围内，进行多样的变更以及修改。本项申请的技术性范围并不局限于说明书上的内容，必须要根据权利要求范围来确定其技术性范围。

Claims (10)

  1. 一种具有预加热功能的加样针装置，其特征在于，包括：
    加样针(1)，包括下端的针尖(101)、上端的针尾(102)和中间的杆部，用于吸取一定量的样本或试剂，加入到反应容器内；
    加热套(2)，包裹设置在加样针(1)外侧；
    隔热绝缘套管(3)，包裹设置在加热套(2)的外侧面；
    外套管(4)，包裹设置在隔热绝缘套管(3)的的外侧面，外套管(4)采用导电金属制成；
    加热板(9)，所述加热板(9)设置在加样针(1)上端部，且与热套(2)连接；
    加热器(12)，设置在加热板(9)顶部，所述加热器(12)用于对加热板(9)加热；
    接线螺纹套(13)，设置在加样针(1)上端部，且与外套管(4)导通连接。
  2. 根据权利要求1所述的一种具有预加热功能的加样针装置，其特征在于，所述加热器(12)的顶部设置有保温上盖(7)。
  3. 根据权利要求2所述的一种具有预加热功能的加样针装置，其特征在于，所述加热板(9)底面设置有保温下盖(8)。
  4. 根据权利要求1-3任一项所述的一种具有预加热功能的加样针装置，其特征在于，所述加热板(9)上安装有温度传感器(10)和温度开关(11)，所述温度传感器(10)用于检测加热板(9)的温度。
  5. 根据权利要求1-3任一项所述的一种具有预加热功能的加样针装置，其特征在于，所述外套管(4)的侧壁上设置有接线螺纹孔(401)。
  6. 根据权利要求1-3任一项所述的一种具有预加热功能的加样针装置，其特征在于，所述加热套(2)上端部外侧壁设置有第一均温槽(201)。
  7. 根据权利要求6任一项所述的一种具有预加热功能的加样针装置，其特征在于，所述加热套(2)中部外侧壁设置有第二均温槽(202)，所述第二均温槽(202)的长宽尺寸小于第一均温槽(201)的长宽尺寸。
  8. 根据权利要求1-3任一项所述的一种具有预加热功能的加样针装置，其特征在于，所述加热套(2)下端部外侧壁设置为光滑圆柱面。
  9. 根据权利要求1-3任一项所述的一种具有预加热功能的加样针装置，其特征在于，所述加热套(2)、隔热绝缘套管(3)、外套管(4)下端口设置有第一灌封胶(5)。
  10. 根据权利要求1-3任一项所述的一种具有预加热功能的加样针装置，其特征在于，所述隔热绝缘套管(3)、外套管(4)的上端口设置有第二灌封胶(6)，且第二灌封胶(6)将加热板(9)与隔热绝缘套管(3)、外套管(4)隔离。
PCT/CN2022/110210 2022-07-01 2022-08-04 一种具有预加热功能的加样针装置 WO2024000729A1 (zh)

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