A sampling device and endoscope system for use in endoscopes

Abstract

This utility model belongs to the field of medical device technology and discloses a sampling device and endoscope system for endoscopes. The sampling device includes a bottle body and a bottle cap. The bottle body is used to store the aspirated liquid. The bottle cap is provided with a first channel, a second channel, and a suction port. The first channel is connected to a bridge and the bottle body, and is provided with a one-way valve. The suction port, which is connected to the suction end of the suction mechanism, is connected to the first channel. The second channel is connected to the bridge and the bottle body. Under the suction action of the suction mechanism, the liquid aspirated by the endoscope is directly discharged through the first channel, avoiding interference from gas with the amount of liquid in the bottle and improving the stability of the liquid level. The one-way valve can prevent liquid in the first channel from entering the bottle body, avoiding changes in the amount of liquid. Alternatively, the liquid aspirated by the endoscope enters the bottle body through the second channel, while the flowing gas, after entering the bottle body, passes through the one-way valve, enters the suction port through the first channel, and is discharged, thereby reducing the amplitude of liquid level fluctuations in the bottle body.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a sampling device and endoscope system for endoscopes. Background Technology

[0002] During endoscopic surgery, saline solution is typically used for flushing. To ensure pressure balance within the body, aspiration is performed after flushing, and the aspirated fluid is disposed of as medical waste. When it is necessary to extract and analyze organic material samples from specific areas of the body, an endoscope can be used to aspirate the fluid into a sampling device to facilitate subsequent tissue extraction and analysis.

[0003] In traditional methods, when suction is needed, the endoscope is connected to the vacuum pump tubing; when sampling is needed, the connection between the endoscope and the vacuum pump tubing is disconnected, and the vacuum pump tubing is connected to the sampling device, which is then connected to the endoscope. This operation is quite cumbersome. Existing sampling devices are positioned between the vacuum pump tubing and the endoscope, and the direction of the liquid is adjusted by regulating the state of the sampling device. When suction is needed, the liquid flows directly to the vacuum pump tubing; when sampling is needed, the liquid flows to the sampling device. However, when the sampling device is in suction mode, the liquid level within the sampling device fluctuates, and the amount of liquid within the device may even increase or decrease. Furthermore, the sampling device exhibits a response lag during state switching due to the long airflow equilibration time. Utility Model Content

[0004] The purpose of this invention is to provide a sampling device and endoscope system for endoscopes. When the endoscope system is in the suction state, the amount of liquid in the sampling device is not affected; when in the sampling state, the liquid level in the sampling device fluctuates less; and the lag during state switching is small.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] On the one hand, a sampling device for an endoscope is provided, wherein the sampling device is connected to the suction end of the endoscope via a bridge;

[0007] The sampling device includes:

[0008] The bottle body is used to store the extracted liquid;

[0009] A bottle cap is detachably mounted on the bottle body; the bottle cap is provided with a first channel, a second channel, and a suction port; both the first channel and the second channel are connected to the bridge and the bottle body, and the first channel is provided with a one-way valve;

[0010] The suction port, which is connected to the suction end of the suction mechanism, is connected to the first channel;

[0011] Under the suction action of the suction mechanism, the liquid aspirated by the endoscope is directly discharged through the first channel; or, the liquid aspirated by the endoscope enters the bottle through the second channel.

[0012] As an optional sampling device, the one-way valve is a valve body that allows both liquids and gases to pass through in one direction.

[0013] Alternatively, the one-way valve may be a valve body that allows gas to pass through in one direction only, while preventing liquid from passing through.

[0014] As an alternative to the sampling device, the second channel includes a first sampling channel and a second sampling channel connected at an angle, the first sampling channel being connected to the bridge and the second sampling channel being connected to the bottle body.

[0015] As an optional sampling device, the first channel includes a suction channel and a suction channel that are connected at an angle, the suction channel being connected to the bridge, and the suction port being connected to the suction channel;

[0016] The suction channel is connected to the bottle body, and the one-way valve is located in the suction channel.

[0017] As an optional embodiment of the sampling device, the sampling device further includes a connecting component, the connecting component comprising:

[0018] A fixing rod is provided on the bottle cap;

[0019] A connecting plate is disposed on the fixed rod; a snap-fit ​​part is provided at one end of the connecting plate near the bridge, and the bridge is provided with a snap-fit ​​groove, wherein the snap-fit ​​part can be snapped into the snap-fit ​​groove.

[0020] As an optional sampling device, the end of the connecting plate away from the bridge is provided with a pressing part, and the upper surface of the pressing part is provided with an anti-slip structure.

[0021] As an optional sampling device, the sampling device further includes a sealing plug for sealing the entrances of the first channel, the second channel, and the suction port.

[0022] As an optional sampling device, the sealing plug is detachably disposed on the outer wall of the bottle cap.

[0023] As an alternative to the sampling device, a connector is provided at the suction port, which is configured to connect to the suction end of the suction mechanism.

[0024] As an optional sampling device, the bottle body is provided with graduation lines;

[0025] The bottle body is made of a transparent material; or, the bottle body has a transparent area, and the scale lines are located in the transparent area.

[0026] On the other hand, an endoscope system is provided, including an endoscope, a bridge, and any of the above-described sampling devices.

[0027] The beneficial effects of this utility model are:

[0028] This invention provides a sampling device and endoscope system for use in endoscopes. The sampling device includes a bottle body and a bottle cap. The bottle cap is provided with a first channel and a second channel. The first channel is connected to a bridge and the bottle body, and is equipped with a one-way valve. A suction port connected to the suction end of a suction mechanism is connected to the first channel. The second channel is connected to the bridge and the bottle body.

[0029] When it is necessary to sample and analyze fluids inside the human body, the fluid aspirated through the endoscope enters the bridging device and flows from the bridging device to the second channel of the bottle cap, thus entering the bottle body. Meanwhile, the gas flowing into the bottle during the aspiration process passes through a one-way valve, flows into the first channel, and then exits through the suction port, reducing the amplitude of liquid surface agitation within the bottle.

[0030] When it is necessary to aspirate fluid from the body, the fluid aspirated through the endoscope enters the bridging device, flows from the bridging device to the first channel of the bottle cap, and then exits through the suction port. This effectively avoids interference from the flowing gas during the aspiration process on the amount of fluid in the bottle, ensuring the stability of the liquid level. At the same time, the one-way valve effectively prevents the fluid flowing into the first channel from entering the bottle. Whether it is a stream or a drop of fluid, or liquid particles mixed with gas and flowing with the gas, it will not enter the bottle, thus effectively preventing changes in the amount of fluid in the bottle. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of the endoscope system provided in a specific embodiment of this utility model;

[0032] Figure 2 This is a schematic diagram of the sampling device and bridge provided in a specific embodiment of this utility model;

[0033] Figure 3 This is a schematic diagram of the bridge provided in a specific embodiment of this utility model;

[0034] Figure 4 This is a schematic diagram of the sampling device and pump pipe provided in a specific embodiment of this utility model;

[0035] Figure 5This is a schematic diagram of the sampling device provided in a specific embodiment of the present invention, omitting the sealing plug;

[0036] Figure 6 This is a cross-sectional view of the sampling device provided in a specific embodiment of this utility model.

[0037] In the picture:

[0038] 100. Endoscope;

[0039] 200. Bridge; 201. Inlet; 202. First outlet; 203. Second outlet; 204. Snap-in slot; 205. Knob; 206. Locking element;

[0040] 300. Pump pipe;

[0041] 1. Bottle body;

[0042] 2. Bottle cap;

[0043] 21. First channel; 211. Suction channel; 212. Suction channel;

[0044] 22. Second sampling channel; 221. First sampling channel; 222. Second sampling channel;

[0045] 23. Suction port;

[0046] 3. Check valve;

[0047] 4. Connecting assembly; 41. Fixing rod; 42. Connecting plate; 421. Snap-fit ​​part; 422. Pressing part;

[0048] 5. Sealing plug; 51. First plunger; 52. Second plunger;

[0049] 6. Connector. Detailed Implementation

[0050] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0051] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0052] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0053] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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 this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0054] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0055] This embodiment provides a sampling device for an endoscope. For example... Figure 1 and Figure 2 As shown, the suction end of the endoscope 100 is connected to the inlet 201 of the bridge 200. The endoscope 100 includes an insertion part and a gripping part. The insertion part is used for insertion into the human body; the gripping part includes a handle for gripping and a suction button. The suction end is located on the gripping part and communicates with the suction end of the suction mechanism; the gripping part also has a working channel for the entry and exit of endoscope accessories. (Combined with...) Figure 3The bridge 200 is provided with a first outlet 202 and a second outlet 203, both of which are connected to the inlet 201. The bridge 200 has a suction setting and a sampling setting. In the suction setting, the first outlet 202 is connected to the inlet 201; in the sampling setting, the second outlet 203 is connected to the inlet 201. The bridge 200 is provided with a knob 205, which allows switching between the suction and sampling settings. The bridge 200 is also provided with a locking element 206, which is used to lock the connection between the suction end of the endoscope 100 and the inlet 201 of the bridge 200, ensuring a stable connection between the endoscope 100 and the bridge 200.

[0056] Reference Figures 4 to 6 The sampling device includes a bottle body 1 and a bottle cap 2. The bottle body 1 is used to store the aspirated liquid. The bottle cap 2 is detachably mounted on the bottle body 1 and connected to a bridge 200. The bottle cap 2 is provided with a first channel 21, a second channel 22, and a suction port 23. The first channel 21 connects to the first outlet 202 of the bridge 200 and the bottle body 1, and the first channel 21 is provided with a one-way valve 3. The suction port 23 connects to the first channel 21 and is configured to connect to the suction end of a suction mechanism (not shown in the figure). The second channel 22 connects to the second outlet 203 of the bridge 200 and the bottle body 1.

[0057] When it is necessary to sample and analyze the fluid inside the human body, turn knob 205 to adjust the bridge 200 to the sampling position. The fluid aspirated by endoscope 100 flows from the suction end of endoscope 100 to the inlet 201 of bridge 200. Under the suction action of the suction mechanism, the fluid flowing to the second channel 22 enters the bottle 1, completing the fluid sampling. During the suction process, gas flows. After entering the bottle 1 through the second channel 22, the flowing gas passes through the one-way valve 3 under the suction action of the suction mechanism, flows into the first channel 21, and is discharged through the suction port 23 to reduce the amplitude of liquid surface agitation inside the bottle 1.

[0058] When it is necessary to aspirate fluid from the body, turn knob 205 to adjust bridge 200 to the suction position. The fluid aspirated by endoscope 100 flows from the suction end of endoscope 100 to the inlet 201 of bridge 200, then through the inlet 201 to the first outlet 202 and into the first channel 21. Under the suction action of the suction mechanism, the fluid flowing into the first channel 21 is directly discharged through suction port 23, avoiding interference from the flowing gas during the suction process on the amount of fluid in bottle 1 and ensuring the stability of the liquid level. The one-way valve 3 can effectively prevent the fluid flowing into the first channel 21 from entering bottle 1. Whether it is a stream or a drop of fluid, or liquid particles mixed with gas and flowing with the gas, it will not enter bottle 1, thus effectively avoiding changes in the amount of fluid in bottle 1. Furthermore, when bridge 200 switches between sampling and suction positions, it can reduce the airflow balancing time and improve operational performance.

[0059] Specifically, in this embodiment, the one-way valve 3 can be a valve body that allows both liquids and gases to pass through in one direction, as long as it allows the fluid to flow through the bottle 1 to the first channel 21, but not through the first channel 21 to the bottle 1.

[0060] Alternatively, in other embodiments, the one-way valve 3 may be a valve body that only allows gas to flow in one direction and not liquid. During sampling, this valve body can effectively prevent liquid from passing through the valve body and entering the first channel 21 due to excessive suction force of the suction mechanism, which is beneficial for rapid sampling.

[0061] The aforementioned one-way valve 3 and valve body are existing devices, and their specific structure and principle are based on existing technology, which will not be elaborated here.

[0062] Specifically, the suction mechanism is a suction pump commonly used in the art, and in this embodiment, a pump pipe 300 is connected between the suction end of the suction pump and the suction port 23 of the bottle cap 2 so as to facilitate the communication between the suction port 23 and the suction mechanism.

[0063] Optionally, refer to Figure 4 and Figure 5 A connector 6 is provided at the suction port 23. The connector 6 is configured to connect to the suction end of the suction mechanism to facilitate quick connection of the device and improve usage efficiency. Specifically, in this embodiment, the connector 6 is configured to connect to the pump pipe 300. In addition, the connector 6 is an existing device in the art, and its specific structure and principle are based on the prior art, and will not be described in detail here.

[0064] Optionally, continue to refer to Figure 4 and Figure 5The bottle body 1 is provided with graduation lines. The bottle body 1 is made of transparent material; or, the bottle body 1 has a transparent area, and the graduation lines are located in the transparent area to facilitate accurate observation of the amount of liquid inside the bottle body 1 by the doctor. Specifically, in this embodiment, the bottle body 1 is made of transparent material, such as plastic; and graduation lines are provided on both opposite sides of the bottle body 1 to further improve the convenience of observation.

[0065] Optionally, refer to Figure 6 The second channel 22 includes a first sampling channel 221 and a second sampling channel 222 connected at an angle. The first sampling channel 221 is connected to the second outlet 203, and the second sampling channel 222 is connected to the bottle body 1. When sampling fluid from the human body, the fluid flowing out of the second outlet 203 flows sequentially through the first sampling channel 221 and the second sampling channel 222 before entering the bottle body 1. Because the first sampling channel 221 and the second sampling channel 222 are connected at an angle, rather than in a straight line or arc transition, the impact of gas flowing into the first sampling channel 221 on the liquid in the bottle body 1 can be effectively reduced, avoiding violent shaking of the liquid surface in the bottle body 1 during sampling, thereby improving the accuracy of the doctor's judgment of the sample volume.

[0066] For example, in this embodiment, the first sampling channel 221 and the second sampling channel 222 are at a 90-degree angle.

[0067] Optionally, continue to refer to Figure 6 The first channel 21 includes a suction channel 211 and a suction channel 212 connected at an angle. The suction channel 211 is connected to the first outlet 202, and the suction port 23 is connected to the suction channel 211. The suction channel 212 is connected to the bottle body 1, and a one-way valve 3 is disposed at the connection between the suction channel 212 and the bottle body 1. With the above arrangement, when liquid is drawn out, that is, when the liquid is directly discharged from the suction mechanism, the liquid flowing out of the first outlet 202 flows to the suction channel 211 and is directly discharged through the suction port 23 under the suction action of the suction mechanism, and will not flow to the suction channel 212; even if some liquid and gas flow to the suction channel 212, they will not enter the interior of the bottle body 1 or cause disturbance to the liquid surface of the bottle body 1 due to the blocking effect of the one-way valve 3.

[0068] For example, in this embodiment, the suction channel 211 and the suction channel 212 are also at a 90-degree angle.

[0069] Optionally, the sampling device also includes a connecting component 4. For example... Figure 5 and Figure 6 As shown, the connecting assembly 4 includes a fixing rod 41 and a connecting plate 42. The fixing rod 41 is disposed on the bottle cap 2, and the connecting plate 42 is disposed on the fixing rod 41. Figure 2 A snap-fit ​​part 421 is provided at one end of the connecting plate 42 near the bridge 200. (Combined) Figure 3The bridge 200 is provided with a snap-fit ​​groove 204, and the snap-fit ​​part 421 can be snapped into the snap-fit ​​groove 204 to ensure the stability of the connection between the sampling device and the bridge 200, and to ensure the smooth operation of sampling and aspiration.

[0070] Furthermore, a pressing part 422 is provided at the end of the connecting plate 42 away from the bridge 200, and an anti-slip structure is provided on the upper surface of the pressing part 422. When it is necessary to assemble or disassemble the bridge 200 and the sampling device, pressing the pressing part 422 with the hand can drive the locking part 421 to engage or disengage from the locking groove 204, which is simple and convenient to operate and helps to improve the efficiency of use. Specifically, the anti-slip structure is an anti-slip pad, such as a rubber pad; or, the anti-slip structure is an anti-slip protrusion, which can be a dotted protrusion or a textured protrusion of any shape, as long as it can increase the contact friction between the user's hand and the pressing part 422. The specific form is in accordance with the prior art, and no specific limitation is made in this embodiment.

[0071] For example, in this embodiment, the anti-slip structure consists of multiple spaced strip-shaped protrusions.

[0072] Optionally, the sampling device also includes a sealing plug 5, which is used to seal the inlet of the first channel 21 and the inlet of the second channel 22. After aspiration or sampling is completed and before the sampling device is transferred, the sealing plug 5 can be used to seal the inlet of the first channel 21 and the outlet of the second channel 22 to prevent liquid from spilling out of the bottle 1.

[0073] Specifically, the sealing plug 5 is provided with a first plunger 51 and a second plunger 52. The first plunger 51 is used to block the entrance of the first channel 21, and the second plunger 52 is used to block the entrance of the second channel 22. In this embodiment, the length of the first plunger 51 is greater than the length of the second plunger 52. The length of the first plunger 51 is adapted to the length of the suction channel 211, and the length of the second plunger 52 is adapted to the length of the first sampling channel 221 to ensure the sealing performance and stability of the plug.

[0074] Furthermore, the sealing plug 5 is detachably mounted on the outer wall of the bottle cap 2, ensuring a one-to-one correspondence between the bottle cap 2 and the sealing plug 5, effectively preventing the sealing plug 5 from being lost or misplaced. When sealing is required, it can be achieved quickly without having to search for the sealing plug 5.

[0075] Specifically, in this embodiment, one end of the sealing plug 5 is fitted onto the connector 6, and the sealing plug 5 is made of a soft, flexible material, such as rubber or silicone.

[0076] In addition, this embodiment also provides an endoscope system, including an endoscope 100, a bridge 200, and the sampling device described above. The bridge 200 is connected to the suction end of the endoscope 100, and the sampling device is connected to the bridge 200. All the beneficial effects of the sampling device described above will not be elaborated here.

[0077] Specifically, since the suction end of the suction mechanism is connected to the suction port 23 of the bottle body 1, and is not directly connected to the bridge 200, it is easier for doctors to operate the endoscope 100 and improves the comfort of use.

[0078] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A sampling device for an endoscope, the sampling device being connected to the suction end of an endoscope (100) via a bridge (200); Its features are, The sampling device includes: Bottle body (1), used to store the drawn-out liquid; A bottle cap (2) is detachably disposed on the bottle body (1); the bottle cap (2) is provided with a first channel (21), a second channel (22) and a suction port (23); the first channel (21) and the second channel (22) are both connected to the bridge (200) and the bottle body (1), and the first channel (21) is provided with a one-way valve (3); The suction port (23) for connecting to the suction end of the suction mechanism is connected to the first channel (21); Under the suction action of the suction mechanism, the liquid aspirated by the endoscope (100) is directly discharged through the first channel (21); or, the liquid aspirated by the endoscope (100) enters the bottle (1) through the second channel (22).

2. The sampling device according to claim 1, characterized in that, The one-way valve (3) is a valve body that allows both liquids and gases to pass through in one direction. Alternatively, the one-way valve (3) is a valve body that allows gas to pass through in one direction only, while preventing liquid from passing through.

3. The sampling device according to claim 1, characterized in that, The second channel (22) includes a first sampling channel (221) and a second sampling channel (222) connected at an angle. The first sampling channel (221) is connected to the bridge (200), and the second sampling channel (222) is connected to the bottle (1).

4. The sampling device according to claim 1, characterized in that, The first channel (21) includes a suction channel (211) and a suction channel (212) that are connected at an angle. The suction channel (211) is connected to the bridge (200), and the suction port (23) is connected to the suction channel (211). The suction channel (212) is connected to the bottle body (1), and the one-way valve (3) is disposed in the suction channel (212).

5. The sampling device according to claim 1, characterized in that, The sampling device further includes a connecting component (4), the connecting component (4) comprising: A fixing rod (41) is provided on the bottle cap (2); A connecting plate (42) is disposed on the fixing rod (41); a snap-fit ​​part (421) is provided at one end of the connecting plate (42) near the bridge (200), and the bridge (200) is provided with a snap-fit ​​groove (204), and the snap-fit ​​part (421) can be snapped into the snap-fit ​​groove (204).

6. The sampling device according to claim 5, characterized in that, The connecting plate (42) is provided with a pressing part (422) at one end away from the bridge (200), and the upper end surface of the pressing part (422) is provided with an anti-slip structure.

7. The sampling device according to claim 1, characterized in that, The sampling device further includes a sealing plug (5) for sealing the first channel (21), the second channel (22) and the suction port (23).

8. The sampling device according to claim 7, characterized in that, The sealing plug (5) is detachably disposed on the outer wall of the bottle cap (2).

9. The sampling device according to any one of claims 1-8, characterized in that, The bottle body (1) is provided with graduation lines; The bottle body (1) is made of transparent material; or, the bottle body (1) is provided with a transparent area, and the scale line is provided in the transparent area.

10. An endoscope system, characterized in that, It includes an endoscope (100), a bridge (200), and a sampling device as described in any one of claims 1-9.

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