Ultrasonic gastroscope device with water bag
By setting a first and a second water-filled balloon at the end of the ultrasound endoscope probe, and adding a limiting component, the problems of poor image stability and insufficient gastrointestinal expansion in the prior art are solved, resulting in clearer gastrointestinal image display and improved patient comfort.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- THE FIRST AFFILIATED HOSPITAL OF WANNAN MEDICAL COLLEGE (YIJISHAN HOSPITAL OF WANNAN MEDICAL COLLEGE)
- Filing Date
- 2025-03-05
- Publication Date
- 2026-07-14
AI Technical Summary
In current ultrasound gastroscopy examinations, both the water injection method and the water balloon method have their shortcomings. The water injection method has poor image stability and is difficult to operate, while the water balloon method cannot fully expand the gastrointestinal tract, increasing examination time and risks.
Design an ultrasonic gastroscopy device with a first water bladder and a second water bladder. The first water bladder provides the sound-transmitting medium, and the second water bladder is used to expand the gastrointestinal wall. Combined with a limiting component, it facilitates probe entry and allows independent control of the inflation and deflation of the two water bladders.
It enables clearer images of the gastrointestinal wall, reduces patient discomfort, and improves examination efficiency and safety.
Smart Images
Figure CN224484043U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field, specifically to an ultrasonic gastroscopy device with a water bladder. Background Technology
[0002] In existing technologies, water injection and the first water balloon are two commonly used auxiliary methods in endoscopic ultrasound examinations.
[0003] The water injection method involves directly injecting physiological saline into the gastrointestinal tract to fully expand the gastrointestinal wall. The injection volume is usually large, possibly 300-500 ml or even more, in order to fill the gastrointestinal tract and fully expose the lesion site, while providing a sound-transmitting medium for the ultrasound probe. However, due to the high fluidity of water in the gastrointestinal tract, the stability of the ultrasound image may be slightly poor.
[0004] Furthermore, in actual operation, it is difficult to retain water when injecting water in the middle of the esophagus and other locations. A large amount of water needs to be injected repeatedly to expand the digestive tract lumen and fully expose the lesion. In addition, when observing the lesion, the water covering the lesion may be lost again, so water needs to be injected again. Therefore, the examination time and examination risk are increased.
[0005] The water balloon method involves attaching a water balloon to the tip of an endoscopic ultrasound device (EUS), and then inflating the balloon by injecting an appropriate amount of saline solution. The amount of water injected into the balloon is usually relatively small, typically 3-5 ml. This method provides a more uniform and stable sound-transmitting medium for the ultrasound probe, which helps to obtain clearer and more accurate images of the gastrointestinal wall layers. However, it has the problem that the gastrointestinal wall cannot be fully expanded, and local lesions cannot be fully exposed.
[0006] To overcome the above problems, existing technologies such as endoscopic ultrasound have water injection channels. By injecting water into the lesion, the digestive tract lumen is expanded and the lesion is fully exposed. However, excessive gas may cause discomfort such as abdominal distension and pain in patients, and may even increase the risk of complications related to endoscopy. Utility Model Content
[0007] The purpose of this invention is to provide an ultrasonic gastroscopy device with a water-filled bladder, wherein a first water-filled bladder and a second water-filled bladder are provided at the probe end, so as to solve the technical problems existing in the prior art.
[0008] To solve the above-mentioned technical problems, this utility model specifically provides the following technical solution:
[0009] An ultrasonic gastroscopy device with a water-filled bladder includes: an ultrasonic gastroscopy body; a first water-filled bladder disposed at the probe end of the ultrasonic gastroscopy body and covering the probe end for providing an acoustic medium; a first water injection channel in the endoscope of the ultrasonic gastroscopy body for injecting and draining water into the first water-filled bladder; a second water-filled bladder disposed at the probe end of the ultrasonic gastroscopy body and covering the first water-filled bladder for expanding the gastrointestinal wall; a second water injection channel in the endoscope of the ultrasonic gastroscopy body for injecting and draining water into the first water-filled bladder; and a limiting component disposed at the probe end of the ultrasonic gastroscopy body, capable of covering the uninjected second water-filled bladder, thereby restricting the second water-filled bladder to fit more closely to the probe end, facilitating insertion through the mouth into the gastrointestinal tract; and the limiting component can release the restriction on the second water-filled bladder after it has been injected with water.
[0010] Furthermore, the first water bladder includes a first bladder body with an opening, and a first threaded connector is provided at the opening of the first bladder body; the first water bladder is threadedly connected to the probe end via the first threaded connector, and the outlet of the first water injection channel is located on the side wall of the endoscope near the probe end.
[0011] Furthermore, the second water bladder includes a second bladder body with two openings, one of which is provided with a second threaded connector, and the other opening is connected to the first threaded connector. The second water bladder is threadedly connected to the probe end via the second threaded connector. The outlet of the second water injection channel is located on the side wall of the endoscope near the probe end, and is located between the installation positions of the first threaded connector and the second threaded connector.
[0012] Furthermore, the limiting assembly includes multiple limiting plates, each with a magnetic sheet on its edge. The multiple limiting plates can form a cylinder after being attracted end-to-end by the magnetic sheet. The cylinder is coaxially arranged with the probe end, and the limiting plates are hinged to the outer wall of the endoscope.
[0013] Furthermore, the cylinder is a conical cylinder with its wide opening facing the probe end. The limiting plate extends outward from the edge of the wide opening of the conical cylinder and folds towards the axis of the conical cylinder to form a folded edge, so that the conical cylinder can wrap around the second water bag.
[0014] Furthermore, the folded edge is provided with a through hole along the circumferential direction of the axis of the conical cylinder, and the same elastic cable passes through the through hole of all the limiting plates. The cable is connected end to end and can apply an external force to the limiting plate to rotate toward the axis of the conical cylinder.
[0015] Furthermore, the limiting plate is made of medical-grade silicone.
[0016] Compared with the prior art, this utility model has the following advantages:
[0017] The ultrasonic gastroscopy device with a water bladder provided by this utility model has a second water bladder and a first water bladder at the probe end. The second water bladder is used to expand the gastrointestinal wall so that the lesion site is fully exposed; the first water bladder is used to provide a more uniform and stable sound transmission medium, which helps to obtain clearer and more accurate images of the structure of each layer of the gastrointestinal wall.
[0018] Furthermore, the first and second water sacs are set independently. Under normal circumstances, only the first water sac is used, and the second water sac is activated when it is necessary to expand the gastrointestinal tract.
[0019] Furthermore, by setting a limiting component to enclose the second and first water bladders, the probe end of the entire device can smoothly enter the gastrointestinal tract through the mouth and esophagus, reducing patient discomfort. Attached Figure Description
[0020] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.
[0021] Figure 1 This is a schematic diagram of an ultrasonic gastroscopy device with a water-filled balloon.
[0022] Figure 2 This is a schematic diagram of the structure with the probe tip inserted into the patient's body.
[0023] Figure 3 This is a schematic diagram of the limit component.
[0024] Figure 4 This is a schematic diagram of the structure of the first and second water bladders.
[0025] The labels in the diagram represent the following:
[0026] 1-Endoscope, 2-Probe tip, 3-First water bladder, 4-Second water bladder, 5-First water injection channel, 6-Second water injection channel, 7-Limiting component;
[0027] 31-First capsule body, 32-First threaded connector, 33-First threaded interface;
[0028] 41-Second capsule body, 42-Second threaded connector, 43-Second threaded interface;
[0029] 71-Limit plate, 72-Magnetic sheet, 73-Folded edge, 74-Cable. Detailed Implementation
[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0031] like Figure 1 As shown, this utility model provides an ultrasonic gastroscopy device with a water bladder, including an ultrasonic gastroscopy body, a first water bladder 3 and a second water bladder 4; the first water bladder 3 and the second water bladder 4 are both located at the probe end 2 of the ultrasonic gastroscopy body.
[0032] The first water bladder 3 encloses the probe end 2, and the endoscope 1 of the ultrasonic gastroscope body has a first water injection channel 5 for injecting and draining water into the first water bladder 3.
[0033] After the probe end 2 enters the gastrointestinal tract through the mouth and esophagus, the external water injection device injects non-bubbling water into the first water bladder 3 through the first water injection channel 5, so that the first water bladder 3 is filled. The non-bubbling water in the first water bladder 3 is used to provide a more uniform and stable sound transmission medium, which helps the ultrasound probe of the probe end 2 to obtain clearer and more accurate images of the structure of each layer of the gastrointestinal wall.
[0034] Specifically, the doctor manipulates the probe end 2 of endoscope 1 to make the first water sac fit against the gastrointestinal wall for observation.
[0035] Furthermore, the external water injection device can drain the water from the first water bag 3 before removing the probe end 2, thereby reducing the space occupied by the probe end 2 and making it easier to remove the probe end 2.
[0036] The endoscope 1 of the ultrasonic gastroscope body has a second water injection channel 6 for injecting and draining water into the second water bladder 4, and the specific shape and structure of the second water bladder 4 are such that the second water bladder 4 after water injection can wrap around the first water bladder 3.
[0037] After the probe end 2 enters the gastrointestinal tract through the mouth and esophagus, if necessary, the external water injection device injects non-bubbling water into the second water bladder 4 through the second water injection channel 6, causing the second water bladder 4 to expand, which can expand the gastrointestinal wall and fully expose the lesion site.
[0038] Furthermore, the external water injection device can drain the water from the second water bag 4 before removing the probe end 2, and adsorb it onto the outer wall of the probe end 2 to reduce the space occupied by the probe end 2, so that the probe end 2 can be removed smoothly.
[0039] The limiting component 7 is located at the probe end 2 of the ultrasonic endoscope body and can wrap the unfilled second water bladder 4. By restricting the second water bladder 4, the second water bladder 4 can fit more closely to the probe end 2, making it easier to insert through the mouth into the gastrointestinal tract. Moreover, the limiting component 7 can release the restriction on the second water bladder 4 after it is filled with water.
[0040] This embodiment provides an example of the first water bladder 3, as shown in the figure:
[0041] The first water bag 3 includes a first bag body 31 with an opening. A first threaded connector 32 is provided at the opening of the first bag body 31. A first threaded interface 33 is provided on the side wall of the endoscope 1 near the probe end 2. The first water bag 3 is threadedly connected to the first threaded interface 33 via the first threaded connector 32, making the first water bag 3 easy to install and remove.
[0042] Furthermore, the outlet of the first water injection channel 5 is located on the side wall of the endoscope 1 near the probe end 2, so as to avoid occupying the space at the probe end 2. Specifically, the outlet of the first water injection channel 5 is located on the side wall of the endoscope 1 between the first threaded interface 33 and the end face of the probe end 2.
[0043] This embodiment also provides an example of a second water bladder 4, as shown in the figure:
[0044] The second water bladder 4 includes a second bladder body 41 with two openings. One opening is provided with a second threaded connector 42, and the other opening is connected to a first threaded connector 32. The second water bladder 4 is threadedly connected to the probe end 2 via the second threaded connector 42, which makes it easy to install and remove the first water bladder 3.
[0045] The outlet of the second water injection channel 6 is located on the side wall of the endoscope 1 near the probe end 2, and is located between the installation positions of the first threaded connector 32 and the second threaded connector 42.
[0046] The shape and structure of the second bladder 41 make it form a claw shape after being filled with water, which can wrap the first water bladder 3 inside.
[0047] When the second water bladder 4 expands, it expands the intestinal wall, and the intestinal wall also squeezes the second water bladder 4, so that the second water bladder 4 and the first water bladder 3 fit together, so that the bubble-free water in the second water bladder 4 can provide a more uniform and stable sound transmission medium for the ultrasound probe.
[0048] In general, the probe end 2 of an ultrasonic endoscope has both an ultrasonic probe and a camera. Therefore, in this embodiment, the material used to make the first water bladder 3 and the second water bladder 4 is transparent silicone, so that the first water bladder 3 and the second water bladder 4 covering the probe end 2 will not obstruct the camera from acquiring image information such as mucosal morphology, color, and presence of lesions.
[0049] This embodiment also provides an example of the limiting component 7, as shown in the figure:
[0050] The limiting assembly 7 includes multiple limiting plates 71, and magnetic sheets 72 are provided on the edges of the limiting plates 71. After the multiple limiting plates 71 are attracted end to end by the magnetic sheets 72, they can form a cylinder. The cylinder is coaxially arranged with the probe end 2. The limiting plates 71 are hinged to the outer wall of the endoscope 1.
[0051] Specifically, the limiting plate 71 is hinged to the third threaded connector that can be threadedly connected to the second threaded interface 43.
[0052] This allows multiple limiting plates 71 to form a claw-like structure that can open and close; it also allows the unfilled second water bladder 4 to be enclosed inside the cylinder, minimizing the space occupied by the entire end where the probe end 2 is located, making it easy to insert through the mouth and into the gastrointestinal tract.
[0053] Furthermore, when the second water bladder 4 is filled with water, it can overcome the magnetic attraction between the two adjacent limiting plates 71, allowing all the limiting plates 71 to open without restricting the second water bladder 4.
[0054] Furthermore, the cylinder is a conical cylinder with its wide opening facing the probe end 2. The limiting plate 71 extends outward from the edge of the wide opening of the conical cylinder and folds towards the axis of the conical cylinder to form a folded edge 73, so that the conical cylinder formed by the limiting plate 71 can provide a larger space to wrap the second water bag 4.
[0055] In order to ensure that the entire limiting assembly 7 can close into a conical cylinder when the probe end 2 is removed, this embodiment also provides the following implementation:
[0056] All flanges 73 have through holes along the circumferential direction of the axis of the conical cylinder, and all through holes are connected by the same elastic cable 74, which can apply an external force to the limiting plate 71 to rotate toward the axis of the conical cylinder.
[0057] Furthermore, to prevent the limiting plate 71 from scratching the patient's internal organs, the limiting plate 71 is made of medical-grade silicone.
[0058] The above embodiments are merely exemplary embodiments of this application and are not intended to limit this application. The scope of protection of this application is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to this application within its substance and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of this application.
Claims
1. An ultrasonic gastroscopy device with a water-filled bladder, characterized in that, include: Ultrasonic gastroscope body; The first water bladder (3) is located at the probe end (2) of the ultrasonic endoscope body and wraps around the probe end (2) to provide a sound-transmitting medium; the endoscope (1) of the ultrasonic endoscope body has a first water injection channel (5) for injecting and draining water into the first water bladder (3); The second water bladder (4) is located at the probe end (2) of the ultrasonic endoscope body and is used to expand the gastrointestinal wall; the endoscope (1) of the ultrasonic endoscope body has a second water injection channel (6) for injecting and draining water into the first water bladder (3); The limiting component (7) is located at the probe end (2) of the ultrasonic endoscope body and can wrap the second water bladder (4) without water injection. By restricting the second water bladder (4), the second water bladder (4) can fit more closely with the probe end (2) and be easily inserted through the mouth into the gastrointestinal tract. The limiting component (7) can release the restriction on the second water bladder (4) after the second water bladder (4) is injected with water.
2. The ultrasonic gastroscopy device with water bladder according to claim 1, characterized in that, The first water bladder (3) includes a first bladder body (31) with an opening, and a first threaded connector (32) is provided at the opening. The first water bladder (3) is threadedly connected to the probe end (2) via the first threaded connector (32). The outlet of the first water injection channel (5) is located on the side wall of the endoscope (1) near the probe end (2).
3. The ultrasonic gastroscopy device with water bladder according to claim 2, characterized in that, The second water bladder (4) includes a second bladder body (41) with two openings, one of which is provided with a second threaded connector (42), and the other opening is connected to the first threaded connector (32). The second water bladder (4) is threadedly connected to the probe end (2) via the second threaded connector (42). The outlet of the second water injection channel (6) is located on the side wall of the endoscope (1) near the probe end (2), and is located between the installation positions of the first threaded connector (32) and the second threaded connector (42).
4. The ultrasonic gastroscopy device with water bladder according to claim 1, characterized in that, The limiting component (7) includes multiple limiting plates (71), and the edge of each limiting plate (71) is provided with a magnetic sheet (72). The multiple limiting plates (71) can form a cylinder after being attracted end to end by the magnetic sheet (72). The cylinder is coaxially arranged with the probe end (2), and the limiting plate (71) is hinged to the outer wall of the endoscope (1).
5. The ultrasonic gastroscopy device with water bladder according to claim 4, characterized in that, The cylinder is a conical cylinder with its wide opening facing the probe end (2). The limiting plate (71) forms a folded edge (73) at the wide opening of the conical cylinder, which extends outward and folds towards the axis of the conical cylinder, so that the conical cylinder can wrap the second water bag (4).
6. The ultrasonic gastroscopy device with water bladder according to claim 5, characterized in that, All the limiting plates (71) are provided with through holes in the circumferential direction along the axis of the conical cylinder. The same elastic cable (74) passes through the through holes. The cable (74) is connected end to end and can apply an external force to the limiting plates (71) to rotate toward the axis of the conical cylinder.
7. The ultrasonic gastroscopy device with water bladder according to claim 6, characterized in that, The limiting plate (71) is made of medical-grade silicone.