Spraying device for endoscope and endoscope flushing and sucking system

Abstract

The utility model provides a spraying device for an endoscope and an endoscope flushing and sucking system, the spraying device for the endoscope can uniformly disperse liquid output by the endoscope so as to enlarge the spraying area, and the spraying device for the endoscope comprises a spraying head part and a mounting part; the mounting part can be detachably connected with a front end opening of a forceps channel of the endoscope, so that the spraying head can be placed in front of the front end of the endoscope to shield the front end opening of the forceps channel of the endoscope, the spraying head is in a cake surface shape with the outward side being a plane and the inward side being an arc surface, and the spraying head is provided with a hole channel penetrating through the arc surface and the plane. The fluid is ejected from the front end opening of the endoscope forceps channel, and when the fluid is blocked by the spraying head, the fluid is scattered so as to be diffused in an umbrella shape along the cambered surface of the spraying head. The functions of visualization, flushing and suction of the endoscope are optimally utilized, favorable conditions are created for implementing diagnosis and treatment under the endoscope, and cleaning, dyeing and hemostasis operation of the gastrointestinal tract part can be met.

Description

Technical Field

[0001] This invention relates to the field of medical devices, and in particular to an endoscope spraying device and an endoscope flushing and suction system. Background Technology

[0002] During endoscopic procedures in the digestive tract, it is necessary to flush and stain the affected gastrointestinal tract to facilitate observation of its surface. Intestinal flushing involves instilling a certain amount of fluid into the colon via the rectum to help cleanse the intestines, promote bowel movements and gas expulsion, or supply medication or nutrition through the intestines, thus aiding in diagnosis and treatment. Spraying staining fluid into the digestive tract works by highlighting the difference in color between normal and diseased tissues on the gastrointestinal surface, facilitating staining observation and imaging by endoscopists. Additionally, medications can be sprayed to stop bleeding at sites of gastrointestinal trauma.

[0003] In clinical practice, intestinal flushing tubes are commonly used to flush the intestines. If the tube is inserted too shallowly, it will not achieve the desired flushing effect; if inserted too deeply, it can easily cause damage to the intestinal mucosa. Injecting too much fluid too quickly can lead to complications such as intestinal perforation, intestinal rupture, or even collapse, while slow fluid infusion can reduce the therapeutic effect.

[0004] Endoscopic spray tubes can be inserted into the body through the endoscopic forceps channel to spray staining agents or hemostatic drugs onto the affected area. Common problems with these spray tubes include uneven spraying, insufficient liquid output, and a small sprayed area, requiring multiple applications and negatively impacting the effectiveness of the treatment.

[0005] Currently, the intestinal flushing tube devices used in clinical practice do not have image or other exploratory guidance. Medical staff can only judge the depth of insertion and the rate of infusion by visual observation, which makes it impossible to accurately control the effect of intestinal flushing.

[0006] In existing technologies, the spray tubes used for endoscopy have a small diameter, approximately 1.8 to 2.3 mm, and the spray head structure of the spray tube is relatively complex, occupying a large volume in a limited tube diameter, which causes poor liquid flow. Utility Model Content

[0007] The purpose of this invention is to provide an endoscopic spraying device and an endoscopic flushing and aspiration system. The endoscopic spraying device can be combined with the forceps channel of the endoscope, optimizing the use of the endoscope's visualization, flushing, and aspiration functions, creating favorable conditions for endoscopic diagnosis and treatment, and meeting the needs of cleaning, staining, and hemostasis operations in the gastrointestinal tract. To this end, this invention adopts the following technical solution:

[0008] An endoscopic spraying device can uniformly disperse the liquid output from the endoscope, thereby expanding the spraying area. The device includes a spray head and a mounting part. The mounting part is detachably connected to the front port of the endoscope's forceps channel, allowing the spray head to be placed in front of the endoscope's front end, thus blocking the front port of the forceps channel. The spray head is a disc shape with a flat outer surface and an arcuate inner surface, and it has a central channel penetrating both the flat and arcuate surfaces. When fluid is ejected from the front port of the endoscope's forceps channel and encounters the obstruction of the spray head, the fluid is dispersed and spreads in an umbrella-like pattern along the arcuate surface of the spray head.

[0009] Furthermore, several grooves are evenly distributed along the edge of the spray head, and each groove has an inner rounded corner bevel formed by obliquely cutting from the arc side of the spray head to the flat side. When the fluid dispersed by the arc surface of the spray head encounters the groove, due to the viscosity of the fluid, it tends to flow along the surface of the inner rounded corner bevel, thus deviating from the original flow direction, and some of the fluid will flow along the groove and be ejected.

[0010] Furthermore, the spray head has a central channel along its central axis that penetrates both the arc surface and the plane, and this channel is aligned with the front port of the endoscope forceps channel. Fluid is ejected from the front port of the endoscope forceps channel, encounters the central channel of the spray head, and some of the fluid can flow directly into the central channel and be ejected.

[0011] Furthermore, the mounting part is used to detachably install and connect the spraying device to the front port of the endoscope forceps channel, and includes a neck and a rivet foot. The neck connects the spraying head and the rivet foot, and has a through hole in its center that communicates with the channel of the spraying head.

[0012] Furthermore, the rivet portion is provided with at least three evenly arranged elastic rivets. Adjacent elastic rivets form a U-shape from the neck end and face the same side. The elastic rivets can be squeezed together and return to their original position after the squeezing stops. Fluid ejected from the front port of the endoscope forceps channel is evenly divided upon encountering the elastic rivets, and the fluid passes through the gaps between the elastic rivets to reach the spray head component.

[0013] Furthermore, each elastic rivet has a triangular protrusion on the outer periphery of its base. When the elastic rivet is inserted into the front port of the pliers channel, the inner wall of the pliers channel presses against the slope of the triangular protrusion, causing the elastic rivet to retract inward until the triangular protrusion is fully inserted into the inner cavity of the pliers channel. After insertion stops, the elastic rivet recovers its elasticity, and the step of the triangular protrusion abuts against the inner wall of the pliers channel, achieving a similar effect to a reverse tooth engagement. At least three elastic rivets recover their original shape, providing at least three abutment support points for the triangular protrusion, thereby ensuring a stable connection between the spraying device and the endoscope.

[0014] According to a second aspect of this utility model, it provides an endoscopic irrigation and aspiration system that optimizes the visualization, irrigation, and aspiration functions of an endoscope. By utilizing the endoscopic spraying device, it creates favorable conditions for endoscopic diagnosis and treatment, satisfying the needs of cleaning, staining, and hemostasis of the gastrointestinal tract. To this end, this utility model adopts the following technical solution:

[0015] An endoscopic irrigation and aspiration system includes a forceps channel, one end of which is provided with a suction port, and the other end is provided with a front port. The system is characterized by a valve seat and a fluid inlet located in the middle of the forceps channel, with the fluid inlet situated between the valve seat and the front port. The system further includes a control valve and a sealing plug. The control valve is mounted on the valve seat and can open and close the forceps channel. The sealing plug is detachably connected to the fluid inlet and, when inserted into the fluid inlet, covers and seals it. The front port is detachably connected to the endoscopic spraying device.

[0016] The connection between the sealing plug and the sealing fluid inlet can also be a threaded connection, a plug-in connection, or a snap-fit ​​connection.

[0017] When the endoscopic flushing system is used for fluid flushing, the control valve blocks the inner cavity of the forceps channel. Simultaneously, the sealing cap is released to open the fluid inlet, which connects to an external fluid injector. The fluid injector is driven to inject fluid, which flows from the fluid inlet to the front port of the forceps channel until it is blocked by the spraying device. Some fluid can flow directly to the central channel of the spray head and be ejected; some fluid passes through the gap between the elastic rivets and is evenly divided to reach the spray head component, spreading out in an umbrella shape along the arc surface of the spray head; some fluid flows along the groove and is ejected, and the configuration of the groove can be used to increase uniformity and range. The fluid is evenly dispersed and sprayed onto the mucosa of the gastrointestinal tract, expanding the spray area.

[0018] In addition, the endoscopic irrigation and aspiration system can also be used to aspirate fluid from the gastrointestinal tract. The control valve releases the obstruction to the forceps channel lumen, while the sealing cap seals the fluid inlet, and the suction port connects to an external negative pressure aspirator. When the spraying device presses against the mucosa of the digestive tract and provides operating space for suction, the external negative pressure aspirator is activated. Fluid in the digestive tract can enter the front port of the forceps channel from the spraying device, flow through the forceps channel lumen, and finally be aspirated from the suction port.

[0019] Furthermore, during operation, it can be guided by endoscopic electronic imaging to enter the human digestive tract through the mouth or anus and reach the target site in the gastrointestinal tract.

[0020] By adopting the technical solution of this utility model, the spraying device for endoscopy can be combined with the forceps channel of the endoscope, optimizing the use of the endoscope's visualization, rinsing and suction functions, creating favorable conditions for endoscopic diagnosis and treatment, and meeting the needs of cleaning, staining and hemostasis operations in the gastrointestinal tract. Attached Figure Description

[0021] Figure 1 This is a structural diagram of an embodiment of the spraying device for endoscopes of this utility model.

[0022] Figure 2 for Figure 1 Cross-sectional view of the embodiment shown.

[0023] Figure 3 for Figure 1 Top view of the spray head in the illustrated embodiment.

[0024] Figure 4 This is a cross-sectional view of the endoscopic flushing and suction system of this utility model.

[0025] Figure 5 for Figure 4 A partial view of the endoscopic flushing and aspiration system shown. Detailed Implementation

[0026] Referring to the accompanying drawings, the present invention provides an endoscope spraying device and an endoscope flushing and suction system. The endoscope spraying device 100 includes a spraying head 110 and a mounting part 120.

[0027] The spray head 110 is a disc shape with a flat surface on the outer side (i.e., the front side) and an arc surface on the inner side. The spray head 110 has a central channel a through the arc surface and the flat surface along the central axis. A plurality of grooves b are evenly distributed along the edge of the spray head 110. The grooves b have an inner bottom rounded corner slope formed by oblique cutting from the arc surface side of the spray head to the flat surface side. That is, the two side walls and the bottom of the groove are transitioned by rounded corners, and the bottom of the groove is an inclined surface inclined to the central axis.

[0028] The mounting portion 120 includes a neck 121 and a foot portion 122. The neck 121 connects the spray head 110 and the foot portion 122, and has a through hole in its center communicating with the central channel a of the spray head. The foot portion 122 is provided with at least three evenly arranged elastic feet 122-1, with adjacent elastic feet forming a U-shape from the end of the neck 122 towards the same side. Each elastic foot 122-1 has a triangular boss c on its outer periphery at the base.

[0029] An endoscopic spraying device can be combined to form an endoscopic flushing and suction system 200. The endoscopic flushing and suction system 200 includes a forceps channel 210, a control valve 220, and a sealing plug 230. The forceps channel 210 has a suction port 211 at one end and a front port 212 at the other end. A valve seat 213 and a fluid inlet 214 are located in the middle, between the valve seat and the front port. The control valve 220 is mounted on the valve seat 213 and can open and close the forceps channel. The sealing plug 230 is detachably connected to the fluid inlet 214.

[0030] Fluid is ejected from the front port 212 of the forceps channel of the endoscope flushing system. When it encounters the obstruction of the spray head 110, the fluid is dispersed and spreads out in an umbrella shape along the arc surface of the spray head.

[0031] When the fluid dispersed by the arc surface of the spray head encounters the groove b, due to the viscosity of the fluid, it tends to flow along the inner bottom rounded corner inclined surface, thus deviating from the original flow direction. Some of the fluid will flow along the groove b and be ejected.

[0032] The rivet portion 122 is provided with at least three evenly arranged elastic rivets 122-1. The elastic rivets 122-1 can be squeezed together and return to their original positions after the squeezing stops. The diameter of the largest part of the rivet portion 122 is larger than the diameter of the front port 212 of the pliers channel, so that the rivet portion 122 will not fall into the pliers channel. The triangular boss c forms a toothed shape, so unless pressed by external force, the rivet portion 122 will not fall out of the front port 212 of the pliers channel, thus being stuck on the front port 212 of the pliers channel. The fluid ejected from the front port 212 of the endoscope pliers channel encounters the elastic rivets 122-1 and is evenly divided. The fluid passes through the gaps between the elastic rivets 122-1 and reaches the spray head 110.

[0033] The endoscope spray device can be combined with the endoscope's clamp channel 210. The elastic rivet 122-1 is inserted into the front port 212 of the clamp channel. The inner wall of the clamp channel compresses the slope of the triangular boss c, causing the elastic rivet 122-1 to retract inward until the triangular boss c is completely inserted into the inner cavity of the clamp channel. After insertion stops, the elastic rivet recovers its elasticity. The step of the triangular boss abuts against the inner wall of the clamp channel. At least three elastic rivets recover their original elasticity, providing at least three abutment support points for the triangular boss c and forming a toothed engagement structure. When the fluid flowing out of the clamp channel 210 is blocked by the spray device, the fluid is pushed outward between the elastic rivets of the mounting part 120, causing the elastic rivets to expand outward, thereby squeezing the triangular boss tighter against the inner wall of the clamp channel, and the endoscope spray device is stably connected.

[0034] By squeezing the elastic rivet feet of the spray device mounting part inward to retract them, the triangular protrusions of the elastic rivet feet are released from contact with the inner wall of the clamp channel. At the same time, the device is moved outward from the endoscope until all rivet feet are completely withdrawn from the front port of the clamp channel. The spray device can then be removed from the endoscope.

[0035] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the scope of the present utility model. All equivalent changes and modifications made in accordance with the present utility model are covered by the scope of the claims of the present utility model, and will not be listed here.

Claims

1. An endoscope spraying device, comprising a spraying head and a mounting portion; characterized in that, The mounting part can be detachably connected to the front port of the endoscope's forceps channel, so that the spray head can be placed in front of the front end of the endoscope to block the front port of the endoscope's forceps channel. The spray head is a disc shape with a flat surface on the outside and an arc surface on the inside, and the spray head is provided with a central channel that penetrates the arc surface and the flat surface.

2. The endoscope spraying device as described in claim 1, characterized in that, Several grooves are evenly distributed along the edge of the spray head, and the grooves have an inner bottom rounded corner bevel formed by oblique cutting from the arc side of the spray head to the plane side.

3. The endoscope spraying device as described in claim 1, characterized in that, Fluid is ejected from the front port of the endoscope forceps channel and encounters the central channel of the spray head. Some of the fluid can flow directly into the central channel and be ejected.

4. The spraying device for endoscopy as described in claim 1, characterized in that, The mounting part includes a neck and a rivet foot. The neck connects the spray head and the rivet foot, and has a through hole in its center that communicates with the channel of the spray head.

5. The endoscope spraying device as described in claim 4, characterized in that, The rivet foot portion is provided with at least three evenly arranged elastic rivet feet. Two adjacent elastic rivet feet are arranged in a U-shape from the neck end and face the same side. The elastic rivet feet can be squeezed together towards the middle and return to their original positions after the squeezing stops.

6. The endoscope spraying device as described in claim 5, characterized in that, There is a triangular protrusion on the outer periphery of the foot heel of each flexible rivet.

7. The endoscope spraying device as described in claim 4, characterized in that, The diameter at the largest part of the rivet foot is larger than the diameter at the front port of the pliers channel.

8. An endoscopic flushing and suction system, comprising a forceps channel, wherein one end of the forceps channel is provided with a suction interface and the other end is provided with a forceps channel front port, characterized in that, The forceps channel is provided with a valve seat and a fluid inlet in the middle, with the fluid inlet located between the valve seat and the front port; the endoscope flushing system also includes a control valve and a sealing plug, the control valve being disposed on the valve seat and capable of opening and closing the forceps channel, the sealing plug being detachably connected to the fluid inlet, and the sealing plug being inserted into the fluid inlet to cover and seal the fluid inlet; the front port is detachably connected to the endoscope spraying device as described in claim 1, 2, 3, 4, 5, 6 or 7.

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