Protective tube sleeve and visible tube core intubation device

Abstract

The utility model relates to a protection pipe sleeve and a visible pipe core intubation device, the protection pipe sleeve comprises a first sleeve body, the first sleeve body is tubular, the first sleeve body is provided with a channel and an insertion hole communicated with the channel, the channel is used for penetration of a pipe core assembly, the inner wall of the channel is provided with a lubricating medium layer, and the lubricating medium layer is arranged along the length direction of the first sleeve body; the second sleeve body is a transparent sleeve body, the second sleeve body is arranged on the side, away from the insertion hole, of the first sleeve body, the second sleeve body is provided with a containing cavity communicated with the channel, and the containing cavity is used for containing a probe of the pipe core assembly. The protection pipe sleeve can wrap the pipe core assembly to form protection, it is ensured that the pipe core body and the probe are not contaminated by bacteria or viruses in an air channel, and meanwhile, the lubricating medium layer is arranged in the first sleeve body, so that the pipe core assembly can be placed in and taken out conveniently. In addition, the protective tube sleeve can be a disposable article, and the protective tube sleeve can be directly taken out to be treated as waste after an operation, so that the cleaning and disinfection work of the tube core assembly can be reduced.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a protective sheath and a visual core insertion device. Background Technology

[0002] Endotracheal intubation is widely used in surgery and the resuscitation of critically ill patients. Endotracheal intubation is an invasive procedure. The intubation tools used for endotracheal intubation, such as the visual stylet, need to be inserted into the patient's mouth and airway. Because the visual stylet needs to come into contact with the airway during use, it is easy to be contaminated with bacteria or viruses. Therefore, in order to prevent cross-infection in the hospital, medical staff need to perform strict disinfection of the visual stylet after the operation or directly discard the used visual stylet. This results in high surgical costs and increases the burden on patients. Utility Model Content

[0003] Therefore, it is necessary to provide a protective sleeve and a visual tube insertion device to address the problem that visual tubes are easily contaminated with bacteria or viruses during use, requiring medical staff to perform strict disinfection of the visual tubes after surgery or to discard used visual tubes directly, which leads to high surgical costs.

[0004] A protective sleeve includes: a first sleeve, which is tubular and has a channel. One end of the first sleeve has an insertion hole communicating with the channel. The channel is used for inserting a core assembly. The inner wall of the channel is provided with a lubricating medium layer, which is disposed along the length of the first sleeve; and a second sleeve, which is transparent and has a receiving cavity. The second sleeve is disposed on the side of the first sleeve away from the insertion hole. The receiving cavity communicates with the channel and is used to receive the probe of the core assembly.

[0005] This application provides a protective sleeve comprising a first body and a second body, which respectively enclose the core body and probe of the tube assembly to form a protective layer. This prevents direct contact between the core assembly and the airway, ensuring that the core body and probe are not contaminated by bacteria or viruses. Simultaneously, the first body contains a lubricating medium layer, providing lubrication. When the core assembly is inserted through the insertion port, the lubricating medium layer reduces the frictional resistance between the inner wall of the channel and the core assembly, greatly facilitating the insertion and removal of the core assembly. Furthermore, the protective sleeve of this application can be disposable. After surgery, the protective sleeve can be directly removed and disposed of as waste, thereby effectively avoiding cross-infection within the hospital, reducing the cleaning and disinfection work of the core assembly, meeting the need for multiple uses of the core assembly, and reducing the surgical cost for patients.

[0006] In one embodiment, the inner wall of the channel forms a limiting step, the side of which faces the receiving cavity and abuts against the bottom of the probe of the die assembly. When the die assembly is inserted into and removed from the protective sleeve, the probe of the die assembly will be pushed by the die body through the insertion hole and into the receiving cavity via the channel. Specifically, the first sleeve is a flexible sleeve. During the insertion and removal of the probe, the limiting step can be squeezed and deformed when passing through it, thus allowing it to smoothly enter the receiving cavity. By making the side of the limiting step facing the receiving cavity abut against the bottom of the probe, the limiting step can limit the probe, ensuring that the probe is stably placed in the receiving cavity and will not easily fall off or shift.

[0007] In one embodiment, the lubricating medium layer is one or more of sodium carboxymethyl cellulose, sodium hyaluronate, dimethyl silicone oil, silicone emulsion, and petrolatum. Preferably, the lubricating medium layer is sodium hyaluronate.

[0008] In one embodiment, the first and second housings are integrally formed. By employing an integral forming process, a tight connection between the first and second housings can be ensured, effectively wrapping and protecting the die body and probe of the die assembly.

[0009] In one embodiment, the first sleeve and the second sleeve are made of one or more of silicone rubber, thermoplastic polyurethane, polyvinyl chloride, and polyurethane elastomer. Preferably, the first sleeve and the second sleeve are made of silicone rubber.

[0010] In one embodiment, the outer wall of the second sleeve is provided with a hydrophobic coating. The hydrophobicity of this coating enables the outer wall of the second sleeve to repel airway secretions, thereby preventing secretions from adhering to the outer wall of the second sleeve during endotracheal intubation and causing obstruction or interference with the field of view of the probe lens of the tube assembly, thus reducing the risk of intubation failure.

[0011] In one embodiment, the hydrophobic coating is made of one or more of polytetrafluoroethylene, polyvinylidene fluoride, perfluoropolyether, perfluorosilane, and long-chain silane. Fluorinated hydrophobic agents and silane hydrophobic agents exhibit excellent hydrophobic properties, with the fluorinated hydrophobic agents having very low surface energy, typically below 20 mN / m. This is because fluorine atoms have extremely high electronegativity, enabling them to form strong CF bonds, resulting in fluorinated compounds with extremely low surface energy and thus exhibiting excellent hydrophobic properties. They can even form a "self-cleaning" effect similar to lotus leaves, demonstrating excellent performance in waterproofing, oil repellency, and stain resistance. Furthermore, both fluorinated hydrophobic agents and silane hydrophobic agents possess good high-temperature resistance and chemical stability, maintaining stable surface tension and hydrophobic properties even at high temperatures. Preferably, the hydrophobic coating is made of perfluorosilane.

[0012] A second aspect of this application provides a visual die insertion device.

[0013] A visual cannulation device includes a cannulation assembly comprising a cannulation body and a probe. The probe is disposed at one end of the cannulation body, which is used to connect to a display device. A protective sleeve is provided, wherein a first sleeve is fitted over the outside of the cannulation body, and a second sleeve is fitted over the outside of the probe. The visual cannulation device provided in the second aspect of this application, by employing any of the aforementioned protective sleeves, can enclose the cannulation assembly to form a protective layer, ensuring that the cannulation body and probe are not contaminated by bacteria or viruses in the airway. Simultaneously, the first sleeve contains a lubricating medium layer, which greatly facilitates the insertion and removal of the cannulation assembly. Furthermore, the protective sleeve can be disposable; after surgery, the protective sleeve can be directly removed and disposed of as waste, thereby effectively avoiding cross-infection within the hospital and reducing the cleaning and disinfection work of the cannulation assembly.

[0014] In one embodiment, the core assembly further includes a positioning element disposed on the core body. The positioning element is used to connect to the end of the first sleeve that is away from the second sleeve. By providing the positioning element, the portion of the first sleeve that is away from the second sleeve can be fixed to the core assembly, preventing the core assembly from sliding relative to the protective sheath during the insertion of the visual core cannulation device, which would affect the surgical operation and cause the core assembly to be exposed.

[0015] In one embodiment, the positioning element has a snap fastener, and the first sleeve has a snap-fit ​​position, with the snap fastener engaging with the snap-fit ​​position. By providing matching snap-fit ​​positions and snap fasteners on the first sleeve and the positioning element respectively, the positioning element secures the first sleeve through the engagement of the snap-fit ​​positions and snap fasteners, thereby ensuring that the core assembly and the protective sheath will not slip or loosen during the procedure.

[0016] In one embodiment, the probe includes a housing and a lens. The housing has a mounting groove, and the lens is disposed in the mounting groove, protruding through an opening in the mounting groove. The die body is electrically connected to the lens. The lens being housed within the housing provides protection, reducing the risk of lens breakage and minimizing the obstruction and interference of the lubricating medium on the lens's field of view during the insertion of the die assembly into the protective sleeve.

[0017] In one embodiment, the probe further includes a lighting assembly disposed on the housing. The lighting assembly provides illumination, resulting in a clearer field of view and improving surgical efficiency.

[0018] In one embodiment, the probe further includes a transparent outer membrane, which is fitted over the outside of the housing. The lens is positioned opposite the transparent outer membrane, and the outer wall of the transparent outer membrane is provided with a hydrophobic and oleophobic coating. The transparent outer membrane forms a barrier between the housing and the lubricating medium layer. The hydrophobic and oleophobic coating enables the outer wall of the transparent outer membrane to repel the lubricating medium layer, thereby preventing the lubricating medium from adhering to the outer wall of the probe and obstructing or interfering with the lens's field of view during the insertion of the die assembly into the protective sleeve.

[0019] In one embodiment, the cross-sectional area of ​​the housing gradually decreases towards the direction away from the die body. By adopting the above structure, the contact area between the housing and the inner wall of the channel can be reduced, thereby reducing resistance and also reducing the contact between the probe and the lubricating medium layer, preventing the lubricating medium from adhering to the outer wall of the probe and causing obstruction and interference to the lens field of view.

[0020] In one embodiment, the die assembly further includes a connector disposed on a section of the die body away from the probe. The connector is electrically connected to the die body and has a female terminal of an electromagnetic quick-connect interface for quick-connection with a male terminal of an electromagnetic quick-connect interface on the display device. By employing this structure, the display device can be quickly connected and disconnected from the visual die insertion device, thereby improving the portability and ease of operation of the visual die insertion device.

[0021] In one embodiment, the die body includes a conductor layer, a metal tube, and a plastic tube arranged sequentially from the inside out, with the two ends of the conductor layer used for electrical connection to the probe and the display device, respectively. Attached Figure Description

[0022] Figure 1 A front view of a visual die insertion device according to one embodiment;

[0023] Figure 2 A partial cross-sectional view of a visual die insertion device according to one embodiment;

[0024] Figure 3 This is a schematic diagram of the probe structure according to one embodiment.

[0025] The correspondence between the reference numerals and the component names is as follows:

[0026] 100 Protective sleeve, 11 First sleeve body, 111 Limiting step, 12 Lubricating medium layer, 13 Second sleeve body, 14 Hydrophobic coating;

[0027] 200. Chip assembly, 21. Chip body, 22. Probe, 221. Housing, 222. Lens, 223. Lighting assembly, 23. Positioning component, 24. Connector.

[0028] The correspondence between the reference numerals and the component names is as follows:

[0029] 100 Protective sleeve, 11 First sleeve body, 111 Limiting step, 12 Lubricating medium layer, 13 Second sleeve body, 14 Hydrophobic coating;

[0030] 200. Chip assembly, 21. Chip body, 22. Probe, 221. Housing, 222. Lens, 223. Lighting assembly, 23. Positioning component, 24. Connector. Detailed Implementation

[0031] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0032] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0033] The protective sleeve of some embodiments of the present invention is described below with reference to the accompanying drawings.

[0034] like Figure 1 and Figure 2 As shown, this embodiment discloses a protective sleeve, including: a first sleeve 11, which is tubular and has a channel. One end of the first sleeve 11 has an insertion hole that communicates with the channel. The channel is used for inserting the core assembly. A lubricating medium layer 12 is provided on the inner wall of the channel and is arranged along the length direction of the first sleeve 11; and a second sleeve 13, which is transparent and has a receiving cavity. The second sleeve 13 is located on the side of the first sleeve 11 away from the insertion hole. The receiving cavity communicates with the channel and is used to receive the probe of the core assembly.

[0035] This application provides a protective sleeve comprising a first body 11 and a second body 13, which respectively enclose the core body and probe of the tube assembly to form a protective layer. This prevents direct contact between the core assembly and the airway, ensuring that the core body and probe are not contaminated by bacteria or viruses. Simultaneously, the first body 11 contains a lubricating medium layer 12, providing lubrication. When the core assembly is inserted through the insertion port, the lubricating medium layer 12 reduces the frictional resistance between the inner wall of the channel and the core assembly, greatly facilitating the insertion and removal of the core assembly. Furthermore, the protective sleeve of this application can be disposable. After surgery, the protective sleeve can be directly removed and disposed of as waste, thereby effectively avoiding cross-infection within the hospital, reducing the cleaning and disinfection work of the core assembly, meeting the need for multiple uses of the core assembly, and reducing the surgical cost for patients.

[0036] like Figure 2 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: a limiting step 111 is formed on the inner wall of the channel, and the side of the limiting step 111 facing the receiving cavity is used to abut against the bottom of the probe of the die assembly. When the die assembly is inserted into and removed from the protective sleeve, the probe of the die assembly will pass through the insertion hole and enter the receiving cavity through the channel under the push of the die body. Specifically, the first sleeve 11 is a flexible sleeve. During the insertion and removal of the probe, the limiting step 111 can be squeezed and deformed when passing through the limiting step 111, so that it can smoothly enter the receiving cavity. By making the side of the limiting step 111 facing the receiving cavity abut against the bottom of the probe, the limiting step 111 can limit the probe, so that the probe can be stably set in the receiving cavity and will not easily fall off or shift.

[0037] In addition to the features of the above embodiments, this embodiment further specifies that the lubricating medium layer 12 is one or more of sodium carboxymethyl cellulose, sodium hyaluronate, dimethyl silicone oil, silicone emulsion, and petrolatum. Preferably, the lubricating medium layer 12 is sodium hyaluronate.

[0038] like Figure 1 and Figure 2 As shown, in addition to the features of the above embodiments, this embodiment further specifies that the first body 11 and the second body 13 are integrally formed. By adopting an integral forming process, a tight connection between the first body 11 and the second body 13 can be ensured, effectively wrapping and protecting the die body and probe of the die assembly.

[0039] In addition to the features of the above embodiments, this embodiment further specifies that: the first housing 11 and the second housing 13 are made of one or more of silicone rubber, thermoplastic polyurethane, polyvinyl chloride, and polyurethane elastomer. Preferably, the first housing 11 and the second housing 13 are preferably made of silicone rubber.

[0040] like Figure 2As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the outer wall of the second body 13 is provided with a hydrophobic coating 14. The hydrophobicity of the hydrophobic coating 14 enables the outer wall of the second body 13 to repel airway secretions, thereby avoiding the problem of secretions adhering to the outer wall of the second body 13 during endotracheal intubation and causing obstruction and interference to the field of view of the probe lens 222 of the tube core assembly, thereby reducing the risk of intubation failure.

[0041] In addition to the features of the above embodiments, this embodiment further specifies that the hydrophobic coating 14 is made of one or more of polytetrafluoroethylene, polyvinylidene fluoride, perfluoropolyether, perfluorosilane, and long-chain silane. Fluorinated hydrophobic agents and silane hydrophobic agents have excellent hydrophobic effects, with the fluorinated hydrophobic agent having a very low surface energy, typically below 20 mN / m. This is because fluorine atoms have extremely strong electronegativity, enabling them to form strong CF bonds, resulting in fluorinated compounds having extremely low surface energy and exhibiting excellent hydrophobic properties. They can even form a "self-cleaning" effect similar to lotus leaves, demonstrating excellent performance in waterproofing, oil repellency, and stain resistance. Furthermore, both fluorinated hydrophobic agents and silane hydrophobic agents have good high-temperature resistance and chemical stability, maintaining stable surface tension and hydrophobic properties even at high temperatures. Preferably, the hydrophobic coating 14 is made of perfluorosilane.

[0042] A second aspect of this application provides a visual die insertion device.

[0043] like Figure 1 and Figure 2 As shown, this embodiment discloses a visual cannulation device, a cannulation assembly 200, which includes a cannulation body 21 and a probe 22. The probe 22 is disposed at one end of the cannulation body 21, which is used to connect to a display device. The aforementioned protective sleeve 100 has a first sleeve 11 fitted over the outside of the cannulation body 21 and a second sleeve 13 fitted over the outside of the probe 22. The visual cannulation device provided in the second aspect of this application, by employing any of the aforementioned protective sleeves 100, can wrap and protect the cannulation assembly 200, ensuring that the cannulation body 21 and the probe 22 are not contaminated by bacteria or viruses in the airway. Simultaneously, the first sleeve 11 contains a lubricating medium layer 12, which greatly facilitates the insertion and removal of the cannulation assembly 200. Furthermore, the protective sleeve 100 can be a disposable item; after surgery, the protective sleeve 100 can be directly removed and disposed of as waste, thereby effectively avoiding cross-infection within the hospital and reducing the cleaning and disinfection work of the cannulation assembly 200.

[0044] like Figure 1As shown, in addition to the features of the above embodiments, this embodiment further specifies that the mandrel assembly 200 also includes a positioning member 23, which is disposed on the mandrel body 21 and is used to connect to the end of the first sleeve 11 away from the second sleeve 13. By providing the positioning member 23, the portion of the first sleeve 11 away from the second sleeve 13 can be fixed to the mandrel assembly 200, preventing the mandrel assembly 200 from sliding relative to the protective sheath during insertion of the visual mandrel cannulation device, thus avoiding interference with surgical procedures and exposure of the mandrel assembly 200.

[0045] In addition to the features of the above embodiments, this embodiment further specifies that: the positioning member 23 is formed with a buckle, and the first sleeve 11 is provided with a fastening position, and the buckle engages with the fastening position. By providing matching fastening positions and buckles on the first sleeve 11 and the positioning member 23 respectively, the positioning member 23 fixes the first sleeve 11 through the cooperation of the fastening position and the buckle, thereby ensuring that the core assembly 200 and the protective sheath will not slip or loosen during the operation.

[0046] like Figure 3 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the probe 22 includes a housing 221 and a lens 222. The housing 221 is provided with a mounting groove, and the lens 222 is disposed in the mounting groove, with the lens 222 protruding through the opening of the mounting groove. The core body 21 is electrically connected to the lens 222. The lens 222 being disposed in the housing 221 provides protection, reducing the risk of lens 222 breakage and minimizing the obstruction and interference of the lubricating medium on the field of view of the lens 222 during the insertion of the core assembly 200 into the protective sleeve 100.

[0047] like Figure 3 As shown, in addition to the features of the above embodiments, this embodiment further specifies that the probe 22 also includes a light assembly 223, which is disposed on the housing 221. The light assembly 223 provides illumination, making the field of view of the lens 222 clearer and improving surgical efficiency.

[0048] In addition to the features of the above embodiments, this embodiment further specifies that: the probe 22 also includes a transparent outer membrane, which is sleeved on the outside of the housing 221, and the lens 222 is disposed opposite to the transparent outer membrane. The outer wall of the transparent outer membrane is provided with a hydrophobic and oleophobic coating. The transparent outer membrane can form a barrier between the housing 221 and the lubricating medium layer 12. The hydrophobic and oleophobic coating enables the outer wall of the transparent outer membrane to repel the lubricating medium layer 12, thereby preventing the lubricating medium from adhering to the outer wall of the probe 22 and causing obstruction and interference to the field of view of the lens 222 during the insertion of the core assembly 200 into the protective sleeve 100.

[0049] In addition to the features of the above embodiments, this embodiment further specifies that the cross-sectional area of ​​the housing 221 gradually decreases in the direction away from the core body 21. By adopting the above structure, the contact area between the housing 221 and the inner wall of the channel can be reduced, thereby reducing resistance and reducing the contact between the probe 22 and the lubricating medium layer 12, thus preventing the lubricating medium from adhering to the outer wall of the probe 22 and causing obstruction and interference to the field of view of the lens 222.

[0050] like Figure 1 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the die assembly 200 also includes a connector 24, which is disposed on a section of the die body 21 away from the probe 22. The connector 24 is electrically connected to the die body 21, and the connector 24 has a female end of an electromagnetic quick-connect interface, which is used for quick-connect connection with the male end of an electromagnetic quick-connect interface on the display device. By adopting the above structure, the display device can be quickly connected and disconnected from the visual die insertion device, thereby improving the portability and ease of operation of the visual die insertion device.

[0051] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0052] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A protective sleeve, characterized in that, include: The first sleeve (11) is tubular and has a channel. One end of the first sleeve (11) has an insertion hole that connects to the channel. The channel is used for inserting the core assembly. The inner wall of the channel is provided with a lubricating medium layer (12). The lubricating medium layer (12) is arranged along the length direction of the first sleeve (11). The second sleeve (13) is a transparent sleeve. The second sleeve (13) is provided with a receiving cavity. The second sleeve (13) is located on the side of the first sleeve (11) away from the insertion hole. The receiving cavity is connected to the channel. The receiving cavity is used to receive the probe of the tube core assembly.

2. The protective sleeve according to claim 1, characterized in that, The inner wall of the channel forms a limiting step (111), the limiting step (111) facing the receiving cavity to abut against the bottom of the probe of the die assembly; and / or The lubricating medium layer (12) is made of one or more of sodium carboxymethyl cellulose, sodium hyaluronate, dimethyl silicone oil, silicone emulsion, and petrolatum; and / or The first body (11) and the second body (13) are integrally formed; and / or The first body (11) and the second body (13) are made of one or more of silicone rubber, thermoplastic polyurethane, polyvinyl chloride and polyurethane elastomer.

3. The protective sleeve according to claim 1, characterized in that, The outer wall of the second body (13) is provided with a hydrophobic coating (14).

4. The protective sleeve according to claim 3, characterized in that, The hydrophobic coating (14) is made of one or more of polytetrafluoroethylene, polyvinylidene fluoride, perfluoropolyether, perfluorosilane and long-chain silane.

5. A visual die insertion device, characterized in that, include: A die assembly (200) includes a die body (21) and a probe (22), wherein the probe (22) is disposed at one end of the die body (21), and the die body (21) is used to connect to a display device; The protective sleeve (100) as described in any one of claims 1 to 4, wherein the first sleeve (11) is sleeved on the outside of the core body (21), and the second sleeve (13) is sleeved on the outside of the probe (22).

6. The visual die insertion device according to claim 5, characterized in that, The core assembly (200) further includes a positioning element (23), which is disposed on the core body (21) and is used to connect to the end of the first sleeve (11) away from the second sleeve (13).

7. The visual die insertion device according to claim 6, characterized in that, The positioning element (23) has a buckle, and the first sleeve (11) has a buckle position, and the buckle engages with the buckle position.

8. The visual die insertion device according to claim 5, characterized in that, The probe (22) includes a housing (221) and a lens (222). The housing (221) is provided with a mounting groove, and the lens (222) is disposed in the mounting groove. The lens (222) is exposed through the opening of the mounting groove, and the core body (21) is electrically connected to the lens (222).

9. The visual die insertion device according to claim 8, characterized in that, The probe (22) further includes a light assembly (223), which is disposed on the housing (221); and / or The probe (22) also includes a transparent outer membrane, which is sleeved on the outside of the housing (221). The lens (222) is disposed opposite to the transparent outer membrane, and the outer wall of the transparent outer membrane is provided with a hydrophobic and oleophobic coating. and / or The cross-sectional area of ​​the shell (221) gradually decreases in the direction away from the core body (21).

10. The visual die insertion device according to claim 5, characterized in that, The die assembly (200) further includes a connector (24) disposed on a section of the die body (21) away from the probe (22). The connector (24) is electrically connected to the die body (21). The connector (24) has a female end of an electromagnetic quick-connect interface, which is used for quick-connect connection with the male end of an electromagnetic quick-connect interface on the display device; and / or The core body (21) includes a conductor layer, a metal tube and a plastic tube arranged sequentially from the inside out. The two ends of the conductor layer are used to electrically connect to the probe (22) and the display device, respectively.

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