Water bag cap provided with valve and used for digestive endoscope micro-probe ultrasonic examination

Abstract

The water bag cap comprises a transparent cap shell, a transparent cylinder is coaxially arranged on the upper side of the transparent cap shell, a mounting plate and an opening are formed in the upper end of the transparent cylinder, a mounting cylinder is arranged on the upper side of the mounting plate, and a mounting groove is formed in the outer side face of the mounting cylinder; a disposable water bag is mounted on the upper side of the mounting cylinder through a mounting groove; a valve is arranged in the transparent cylinder, when the valve is located at a first working position, the mounting cylinder and the transparent cap shell are separated by the valve, and the opening is communicated with the transparent cylinder and the transparent cap shell; when the valve is in the second working position, the mounting cylinder is communicated with the transparent cylinder and the transparent cap shell, and the opening is separated from the transparent cap shell by the valve. According to the utility model, air-free water is limited in the disposable water bag, so that the sound transmission condition can be ensured only by injecting a small amount of air-free water. And meanwhile, the valve can be switched to different working positions, so that a relatively good observation view field and ultrasonic acoustic transmission imaging are ensured.

Description

Technical Field

[0001] The utility model relates to medical equipment, in particular to a water bag cap with a valve used for digestive endoscopy micro-probe ultrasonic examination. Background Art

[0002] The non-invasive endoscopic exploration of submucosal tumors or lesions in the digestive tract mainly relies on microprobe or small probe endoscopic ultrasound technology, which has been widely used in clinical practice due to its advantages of being small and convenient, with few equipment restrictions and simple operation. In the prior art, the imaging of microprobe ultrasound technology relies on the probe to fill sufficient air-free water into the gap at the detection site as a sound-permeable medium. In actual use, although more air-free water is filled, due to many objective factors such as gastrointestinal peristalsis, special anatomical position, gravity influence, patient discomfort reaction, etc., it is still easy to cause insufficient air-free water, resulting in the need to fill more air-free water, resulting in a higher risk of air-free water reflux and aspiration, resulting in the application of anesthesia being restricted, thereby greatly reducing the effect of microprobe ultrasound examination.

[0003] At present, the main method to solve the above technical deficiencies is to bind a water bag to the front end of the microprobe ultrasound device to limit the amount and accumulation position of air-free water, thereby reducing the risk of air-free water reflux and aspiration. However, there are still the following deficiencies: 1) If the water bag is simply bound to the front end of the digestive endoscope, the water bag will completely block the camera, forceps channel, water injection hole, and light source on the digestive endoscope. At this time, the field of view of the digestive endoscope is greatly limited, and basic operations such as inflation, suction, water injection and flushing of the digestive tract cannot be performed, which greatly affects the observation and operation of the digestive endoscope; 2) The water bag placed outside the digestive endoscope in the form of a cannula also has the problem of blocking the field of view of the digestive endoscope.

[0004] Therefore, the prior art lacks a water bag integration device that can ensure that the air-free water is fully filled without affecting the operation of the digestive endoscope. Utility Model Content

[0005] The utility model aims to provide a water bag cap with a valve for digestive endoscopy microprobe ultrasonic examination, and the water bag cap with a valve for digestive endoscopy microprobe ultrasonic examination is intended to solve the technical problem in the prior art that the way of binding the water bag at the front end of the microprobe ultrasonic device affects digestive endoscopy observation and operation.

[0006] The utility model discloses a water bag cap with a valve for digestive endoscopy micro-probe ultrasonic examination, comprising a transparent cap outer shell, the transparent cap outer shell is cylindrical, a transparent tube connected with the transparent cap outer shell is coaxially arranged on the upper side of the transparent cap outer shell, a semicircular mounting plate and a semicircular opening are arranged on the upper end of the transparent tube, a mounting tube is arranged on the upper side of the mounting plate, a mounting groove is arranged on the outer side of the mounting tube, the mounting tube is connected with the transparent tube, a disposable water bag is installed on the upper side of the mounting tube through the mounting groove, and the disposable water bag is connected with the mounting tube;

[0007] A valve is arranged in the transparent tube, and the valve has a first working position and a second working position; when the valve is in the first working position, the mounting tube and the transparent cap outer shell are separated by the valve, and the opening is communicated with the transparent tube and the transparent cap outer shell; when the valve is in the second working position, the mounting tube and the transparent tube and the transparent cap outer shell are communicated with each other, and the opening and the transparent cap outer shell are separated by the valve.

[0008] Furthermore, the valve includes a valve core and a middle baffle, wherein the middle baffle is fixed in the middle of the transparent tube, a semicircular notch is provided on the lower side of the middle baffle, the valve core is located in the notch, and the valve core is hinged to the transparent cap shell through a rotating shaft.

[0009] Furthermore, a torsion spring is sleeved on the rotating shaft, and both ends of the torsion spring each include a torsion arm, one of the torsion arms is connected to the middle baffle, and the other torsion arm is connected to the valve core.

[0010] Furthermore, the opening of the disposable water bag is fixed to the mounting groove of the mounting tube through a rubber ring.

[0011] Compared with the prior art, the utility model has a positive and obvious effect. The utility model limits the airless water in the disposable water bag, which can ensure the stability of the position of the airless water, so that only a small amount of airless water needs to be injected to ensure the sound transmission conditions, and to perform excellent ultrasonic inspection work, thereby reducing the risk of aspiration caused by the reflux of airless water, and providing conditions for anesthesia operation. At the same time, the valve can switch to different working positions, thereby ensuring a better observation field and ultrasonic sound transmission imaging, without affecting the operation of inserting the scope, exploring lesions, flushing mucosa, etc., and realizing a well-controlled ultrasonic inspection operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 The utility model is a schematic diagram of a water bag cap with a valve for digestive endoscopy micro-probe ultrasonic examination when the valve core is located at the first working position.

[0013] Figure 2 The utility model is a cross-sectional schematic diagram of a water bag cap with a valve used for digestive endoscopy micro-probe ultrasonic examination when the valve core is located at the first working position.

[0014] Figure 3 The utility model is a schematic diagram of a water bag cap with a valve for digestive endoscopy microprobe ultrasonic examination when the valve core is located at the second working position.

[0015] Figure 4 The utility model is a cross-sectional schematic diagram of a water bag cap with a valve used for digestive endoscopy micro-probe ultrasonic examination when the valve core is located at the second working position. DETAILED DESCRIPTION

[0016] The utility model is further described below in conjunction with an embodiment, but the utility model is not limited to the embodiment, and all similar variations of the utility model should be included in the protection scope of the utility model. The use of directions such as up, down, front, back, left, right, middle, inside, and outside in the utility model is only for the convenience of clear description, and is not a limitation on the technical solution of the utility model.

[0017] like Figure 1-Figure 4 As shown, the utility model is a water bag cap with a valve for digestive endoscopy microprobe ultrasonic examination, comprising a transparent cap shell 5, the transparent cap shell 5 is cylindrical, a transparent tube 14 connected to the transparent cap shell 5 is coaxially arranged on the upper side of the transparent cap shell 5, a semicircular mounting plate 3 and a semicircular opening 16 are arranged on the upper end of the transparent tube 14, a mounting tube 1 is arranged on the upper side of the mounting plate 3, a mounting groove 2 is arranged on the outer side of the mounting tube 1, the mounting tube 1 is connected to the transparent tube 14, a disposable water bag 9 is installed on the upper side of the mounting tube 1 through the mounting groove 2, and the disposable water bag 9 is connected to the mounting tube 1;

[0018] The transparent cylinder 14 is provided with a valve 15, and the valve 15 has a first working position and a second working position; Figure 1 and Figure 2 As shown, when the valve 15 is in the first working position, the installation cylinder 1 and the transparent cap shell 5 are separated by the valve 15, and the opening 16 is connected with the transparent cylinder 14 and the transparent cap shell 5; Figure 3 and Figure 4 As shown, when the valve 15 is in the second working position, the installation tube 1 is connected with the transparent tube 14 and the transparent cap shell 5 , and the opening 16 and the transparent cap shell 5 are separated by the valve 15 .

[0019] In this embodiment, the disposable water bag 9 can be removed or installed according to the inspection needs. Figure 2 As shown, the endoscope 6 has a clamp channel 11, a water injection hole, a suction hole, a camera 13 and a light source 12. When in use, Figure 1 As shown in FIG. 1 , the water bag cap with valve is placed on the front end of the endoscope 6 through the transparent cap shell 5, and the transparent cap shell 5 can be rotated circumferentially to adjust the installation angle. Figure 2 As shown, the mounting barrel 1 is aligned with the clamp channel 11 .

[0020] Under normal conditions, the valve 15 is in the first working position, the mounting tube 1 and the transparent cap outer shell 5 are separated by the valve 15, and the opening 16 is connected to the transparent tube 14 and the transparent cap outer shell 5, so that the flow channel of water and gas (water refers to the injected airless water, and gas refers to the injected air, and the flow channel of water and gas refers to the channel in which the injected airless water and air flow in the same direction after being injected by the endoscope) is limited to the left side of the valve 15. At this time, the camera 13 is not blocked, the field of view is good, the flow direction of airless water and gas is not blocked, and observation, water injection, inflation, suction, and operations such as finding lesions, flushing mucosa, and expanding lumen can be carried out.

[0021] When the lesion is found and the digestive endoscope device is placed close to the mucosa at the lesion site and an ultrasound examination is to be performed, the valve 15 is switched to the second working position, such as Figure 3 As shown, the micro-probe ultrasonic device 10 is inserted through the clamp channel 11 and extended into the disposable water bag 9. At this time, the installation tube 1 is connected with the transparent tube 14 and the transparent cap shell 5. The opening 16 and the transparent cap shell 5 are separated by a valve 15. The valve 15 is located on one side of the camera 13 and the light source 12. Airless water is continuously injected through the water injection hole to fill the disposable water bag 9, forming a good sound-permeable medium around the micro-probe ultrasonic device 10. When the examining physician determines that the expansion degree of the disposable water bag 9 is appropriate, the ultrasonic examination is performed.

[0022] When the ultrasonic inspection is finished or the inspection site needs to be adjusted, the airless water is removed through the suction hole, the microprobe ultrasonic device 10 is pulled out, the valve 15 is switched to the first working position, and then the observation, adjustment of the inspection site or the end of the inspection can be continued.

[0023] The different working positions of the valve 15 can be switched only by the extension and retraction of the micro-probe ultrasonic device 10 without the intervention of external force.

[0024] In a preferred technical solution of the present utility model, the valve 15 includes a valve core 4 and a middle baffle 8, wherein the middle baffle 8 is fixed in the middle of the transparent tube 14 and coincides with the central axis of the transparent tube 14, the upper side of the middle baffle 8 is connected to the mounting plate 3, and the two sides of the middle baffle 8 are connected to the inner wall of the transparent tube 14, and a semicircular notch is provided on the lower side of the middle baffle 8, wherein the valve core 4 is located in the notch, and the radius of the valve core 4 is equal to the radius of the notch, and a rotating shaft 7 is provided on the valve core 4 along its diameter direction, and the central axis of the rotating shaft 7 is located in the radial section of the transparent tube 14 and coincides with the lower side of the middle baffle 8, and the valve core 4 is hinged to the transparent cap shell 5 through the rotating shaft 7, and the valve core 4 can realize a rotating action through the rotating shaft 7.

[0025] In a preferred technical solution of the present utility model, a torsion spring (not shown) is sleeved on the rotating shaft 7, and each end of the torsion spring includes a torsion arm, one of the torsion arms is connected to the middle baffle 8, the transparent cap shell 5 or the transparent cylinder 14, and the other torsion arm is connected to the valve core 4.

[0026] Specifically, under normal circumstances, such as Figure 2 As shown, the valve core 4 rotates clockwise to the right under the elastic force of the torsion spring, and together with the middle baffle 8, separates the internal space of the transparent tube 14, and the valve 15 is in the first working position. Figure 4 As shown, the microprobe ultrasonic device 10 pushes the valve core 4 to rotate counterclockwise to the left, so that the valve 15 is in the second working position, and the valve core 4 is pressed against the microprobe ultrasonic device 10 by the elastic force of the torsion spring. After the microprobe ultrasonic device 10 is pulled out, the valve core 4 rotates clockwise to the right under the elastic force of the torsion spring, and the valve 15 is in the first working position again.

[0027] It should be noted that the valve 15 does not need to be strictly and completely sealed. When the valve 15 is in the first working position, the injected airless water and gas mainly flow out from the left channel of the valve 15. Even if a small amount of airless water or gas enters the disposable water bag 9, it is not enough to expand the elastic disposable water bag 9 to the size of the working state, and will not affect the field of view of the camera 13. When the valve 15 is in the second working position, the disposable water bag 9 is expanded to the size of the working state due to the continuous injection of airless water. Even if a small amount of airless water flows out from the opening 16, the expanded disposable water bag 9 will not shrink due to the continuous injection of airless water, so it will not affect normal work.

[0028] In a preferred technical solution of the present invention, the opening of the disposable water bag 9 is fixed to the mounting groove 2 of the mounting tube 1 through a rubber ring. In a preferred technical solution of the present invention, the rubber ring can better fix the disposable water bag 9. Specifically, the specific structure and principle of the disposable water bag 9, torsion spring and other parts in the present invention and other parts not described in detail all adopt the known solutions in the prior art, which are already understood by those skilled in the art and will not be repeated here.

[0029] The utility model can be adapted to various types of digestive endoscopes by adjusting the inner diameter of the transparent cap shell 5. The transparent cap shell 5, the transparent tube 14 and the mounting plate 3 are all made of transparent engineering plastics to reduce the impact on the field of vision. The diameters and distributions of the clamp channel 11, the light source 12 and the camera 13 of different models of endoscopes may be different, but the clamp channel 11 and the camera 13 are generally located on both sides, so it does not affect the application effect of the utility model in different models of endoscopes. The disposable water bag 9 can be made of medical natural latex to ensure the elasticity of the disposable water bag 9.

[0030] The utility model limits the airless water in the disposable water bag 9, which can ensure the stability of the position of the airless water, so that only a small amount of airless water needs to be injected to ensure the sound transmission condition, and to perform excellent ultrasonic inspection work, thereby reducing the risk of aspiration caused by the reflux of airless water, and providing conditions for anesthesia operation. At the same time, the valve 15 can switch different working positions, thereby ensuring a better observation field and ultrasonic sound transmission imaging, without affecting the operation of the scope movement, lesion detection, mucosal flushing, etc., and realizing a well-controlled ultrasonic inspection operation.

Claims

1. A water bag cap with a valve for digestive endoscopy microprobe ultrasonic examination, characterized in that: The transparent cap shell is cylindrical, a transparent tube connected to the transparent cap shell is coaxially arranged on the upper side of the transparent cap shell, a semicircular mounting plate and a semicircular opening are arranged on the upper end of the transparent tube, a mounting tube is arranged on the upper side of the mounting plate, a mounting groove is arranged on the outer side of the mounting tube, the mounting tube is connected to the transparent tube, a disposable water bag is installed on the upper side of the mounting tube through the mounting groove, and the disposable water bag is connected to the mounting tube; A valve is arranged in the transparent tube, and the valve has a first working position and a second working position; when the valve is in the first working position, the mounting tube and the transparent cap outer shell are separated by the valve, and the opening is communicated with the transparent tube and the transparent cap outer shell; when the valve is in the second working position, the mounting tube and the transparent tube and the transparent cap outer shell are communicated with each other, and the opening and the transparent cap outer shell are separated by the valve.

2. A water bag cap with a valve for digestive endoscopy microprobe ultrasonic examination according to claim 1, characterized in that: The valve comprises a valve core and a middle baffle, wherein the middle baffle is fixed in the middle of the transparent tube, a semicircular notch is arranged on the lower side of the middle baffle, the valve core is located in the notch, and the valve core is hinged to the transparent cap shell through a rotating shaft.

3. A water bag cap with a valve for digestive endoscopy microprobe ultrasonic examination according to claim 2, characterized in that: A torsion spring is sleeved on the rotating shaft, and both ends of the torsion spring respectively include a torsion arm, one of the torsion arms is connected to the middle baffle plate, and the other torsion arm is connected to the valve core.

4. The water bag cap with valve for digestive endoscopy microprobe ultrasonic examination according to claim 2, characterized in that: The opening of the disposable water bag is fixed on the mounting groove of the mounting tube through a rubber ring.

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