Nasopharyngoscope

Abstract

The nasopharyngoscope comprises a connector and an insertion tube, the insertion tube is connected to one end of the connector, an elastic part is arranged at the end, connected to the connector, of the insertion tube, the elastic part is axially fixed relative to the insertion tube, one end of the elastic part extends into the connector, and the other end of the elastic part extends into the connector. The other end of the elastic piece extends out of the connector and is connected with the insertion pipe in a sleeved mode. And the elastic piece is gradually hardened from one end far away from the connector to one end close to the connector. The nasopharyngoscope has the advantages of being simple in structure and long in service life.

Description

Technical Field

[0001] This utility model relates to an endoscope, and more particularly to a nasopharyngoscope. Background Technology

[0002] Current nasopharyngoscopes generally consist of an insertion tube and a connector. The insertion tube is flexible to facilitate insertion into the nasal cavity, while the connector is rigid for easy handling and control by the operator. However, the junction between the connector and the insertion tube, where the tube and connector are both flexible and rigid, makes the insertion tube prone to bending at this point. With repeated bending, the bend deepens, eventually leading to breakage and significantly shortening the lifespan of the nasopharyngoscope. Utility Model Content

[0003] The purpose of this invention is to provide a nasopharyngoscope with a simple structure and long service life.

[0004] To achieve the above objectives, the nasopharyngoscope provided by this utility model includes a connector and an insertion tube. The insertion tube is connected to one end of the connector. An elastic element is provided at the end of the insertion tube connected to the connector. The elastic element is axially fixed relative to the insertion tube. One end of the elastic element extends into the connector, and the other end of the elastic element extends out of the connector and is sleeved with the insertion tube. The elastic element gradually hardens from the end away from the connector to the end closer to the connector.

[0005] Compared with the prior art, this utility model provides an elastic element at one end of the insertion tube connected to the connector, and the elastic element gradually hardens from the end away from the connector to the end closer to the connector. Therefore, the bending amplitude of the insertion tube at the end away from the connector is greater than that at the end closer to the connector. Consequently, the hardness is greatest at the connection between the insertion tube and the connector, and it is not easily bent into creases by external forces, thereby protecting the insertion tube. The structure is simple and effectively extends the service life of the nasopharyngoscope.

[0006] Preferably, the elastic element is a helical spring strip. Using a helical spring strip as the elastic element simplifies the structure and does not affect the assembly of the insertion tube, making assembly convenient.

[0007] Specifically, the pitch of the helical spring gradually decreases from the end furthest from the connector to the end closest to the connector. By controlling the pitch, the end furthest from the connector has lower stiffness, ensuring a larger bending radius for the insertion tube, while the end closest to the connector has higher stiffness, preventing the insertion tube from being bent by external force at the connection point with the connector, thereby effectively protecting the insertion tube.

[0008] Specifically, the helical spring strip is sleeved outside the insertion tube and extends to one end of the connector, and the other end of the helical spring strip is sleeved inside the connector.

[0009] Specifically, the helical spring strip is sleeved inside the insertion tube.

[0010] Specifically, the helical spring strip is embedded in the material of the insertion tube.

[0011] Preferably, the end of the insertion tube is provided with a camera.

[0012] Specifically, the nasopharyngoscope further comprises a display device connected to the connector, and the display device is electrically connected to the camera.

[0013] Specifically, the display device and the connector are detachably connected through a connector. In this way, the display device can be assembled more conveniently and quickly, and the insertion tube can be replaced with different display devices or electronic devices, thereby improving the applicability of the device. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a structure diagram of the nasopharyngoscope of the utility model.

[0015] Figure 2 is a structure diagram of the connector of the nasopharyngoscope of the utility model.

[0016] Figure 3 is a structure diagram of another embodiment of the connector of the nasopharyngoscope of the utility model.

[0017] Figure 4 is a structure diagram of the nasopharyngoscope of the utility model using a small-size display. DETAILED DESCRIPTION

[0018] To illustrate the technical content, structural features and effects of the utility model in detail, the following will be described in detail in combination with the embodiments and the drawings.

[0019] As shown in Figure 1 and Figure 2 , the nasopharyngoscope 100 of the utility model comprises a connector 1 and an insertion tube 2, one end of the insertion tube 2 is connected to the connector 1, one end of the insertion tube 2 connected to the connector 1 is provided with an elastic member, the elastic member is fixed axially relative to the insertion tube 2, one end of the elastic member extends into the connector 1, the other end of the elastic member extends outside the connector 1 and is sleeved with the insertion tube 2; the elastic member gradually hardens from the end far away from the connector 1 to the end close to the connector 1.

[0020] Again as shown in Figure 1 and Figure 2As shown, the elastic member is a helical spring strip 3, which is arranged helically around the central axis of the insertion tube 2. Using the helical spring strip 3 as the elastic member is simple in structure and facilitates the assembly of the insertion tube 2. The pitch of the helical spring strip 3 gradually decreases from the end away from the connector 1 to the end close to the connector 1. By controlling the size of the pitch, the hardness of the end away from the connector 1 is small, ensuring a large bending amplitude of the insertion tube 2, while the hardness of the end close to the connector 1 is large, preventing the insertion tube 2 from being bent at the connection with the connector 1 by external force, thereby effectively protecting the insertion tube 2. The helical spring strip 3 is sleeved inside the insertion tube 2. Of course, as shown in Figure 3 the helical spring strip 3 can also be sleeved outside the insertion tube 2 and extend to the end of the connector 1, which is sleeved inside the connector 1. Alternatively, the helical spring strip 3 can be embedded in the material of the insertion tube 2 and integrally injection molded with the material of the insertion tube 2.

[0021] Please also refer to Figure 1 and Figure 2 , the end of the insertion tube 2 is provided with a camera 4. The nasopharyngoscope 100 further comprises a display device 5 connected to the connector 1, and the display device 5 is electrically connected to the camera 4. Specifically, the display device 5 and the connector 1 are detachably connected through a connector 6. The connector 6 is a Thunderbolt connector. By providing the connector 6, the display device 5 can be assembled more conveniently and quickly, and the insertion tube 2 can be replaced with different display devices 5 or electronic devices, improving the applicability of the device. The display device 5 of the utility model can adopt a large-size display or a small-size display 7, as shown in Figure 4 . These displays can be connected to the connector 1 through the connector 6.

[0022] Compared with the prior art, the utility model provides an elastic member at the end of the insertion tube 2 connected to the connector 1, and the elastic member gradually hardens from the end away from the connector 1 to the end close to the connector 1. Therefore, the bending amplitude of the insertion tube 2 at the end away from the connector 1 is greater than that at the end close to the connector 1, so that the hardness at the connection between the insertion tube 2 and the connector 1 is the largest, and it is not easy to be bent by external force, thereby achieving the purpose of protecting the insertion tube 2, and the structure is simple, effectively prolonging the service life of the nasopharyngoscope 100.

[0023] The above disclosed is only a preferred embodiment of the present application, and of course cannot limit the scope of the present application, therefore equivalent changes made according to the patent application scope of the present application still belong to the scope covered by the present application.

Claims

1. A nasopharyngoscope, characterized in that: The device includes a connector and an insertion tube. The insertion tube is connected to one end of the connector. The end of the insertion tube connected to the connector is provided with an elastic element. The elastic element is axially fixed relative to the insertion tube. One end of the elastic element extends into the connector, and the other end of the elastic element extends out of the connector and is sleeved with the insertion tube. The elastic element gradually hardens from the end away from the connector to the end closer to the connector.

2. The nasopharyngoscope as described in claim 1, characterized in that: The elastic element is a helical spring bar.

3. The nasopharyngoscope as described in claim 2, characterized in that: The pitch of the helical spring bar gradually decreases from the end furthest from the connector to the end closest to the connector.

4. The nasopharyngoscope as described in claim 2, characterized in that: The spiral spring strip is sleeved on the outside of the insertion tube and extends to one end of the connector, which is then sleeved inside the connector.

5. The nasopharyngoscope as described in claim 2, characterized in that: The helical spring strip is fitted inside the insertion tube.

6. The nasopharyngoscope as described in claim 2, characterized in that: The helical spring bar is embedded within the material of the insertion tube.

7. The nasopharyngoscope as described in claim 1, characterized in that: A camera is installed at the end of the insertion tube.

8. The nasopharyngoscope as described in claim 7, characterized in that: The nasopharyngoscope also includes a display device, which is connected to the connector and electrically connected to the camera.

9. The nasopharyngoscope as described in claim 8, characterized in that: The display device and the connector are detachably connected via a connector.

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