Water bag structure of ultrasonic small probe
By designing a water-filled bladder structure for the small ultrasound probe and using water inside the bladder as a medium, the problem of difficult imaging of lesions at high locations with a small probe ultrasound endoscope was solved, reducing the risk of aspiration by patients and protecting the small ultrasound probe, thus saving medical costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 石磊
- Filing Date
- 2025-01-15
- Publication Date
- 2026-07-07
Smart Images

Figure CN224461722U_ABST
Abstract
Description
Technical Field
[0001] This utility model generally relates to the field of endoscopic ultrasound mini-probe technology, and specifically to a water bladder structure for an ultrasound mini-probe. Background Technology
[0002] Mini-probe endoscopic ultrasound is an important diagnostic tool in gastroenterology, playing an irreplaceable role, especially in the precise diagnosis and treatment of lesions of the gastrointestinal mucosa and submucosa. Mini-probe endoscopic ultrasound, also known as small-probe ultrasound endoscopy, is a medical device composed of a small-probe ultrasound system and an endoscope system. This technique involves inserting a small-diameter ultrasound probe through the endoscopic biopsy channel into the surface of the tissue to be examined. Using water as a medium, it clearly displays the layers of the digestive tract wall where lesions are located and provides diagnostic information based on the different densities of the echoes within the lesion. Mini-probe endoscopic ultrasound has wide applications in the diagnosis and treatment of gastrointestinal diseases.
[0003] In existing technologies, during examination, water needs to be injected into the esophagus or stomach using an endoscope. The water automatically flows downwards to lower positions. Even after injecting a large amount of water, it is difficult for lesions located in higher positions, such as the esophagus, gastric fundus, cardia, and pylorus, to be submerged in the water, increasing the difficulty of the examination. Furthermore, the frequent water injection during the examination can easily cause the patient to aspirate into their airway, leading to aspiration pneumonia or suffocation. At the same time, the small ultrasound probe relies on squeezing the lesion tissue for visualization during the examination, which is easily damaged and expensive. Summary of the Invention
[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a water bladder structure for a small ultrasonic probe that can solve the above-mentioned technical problems.
[0005] This utility model provides a water-filled structure for a small ultrasonic probe, comprising:
[0006] The water bladder body has a water storage cavity inside, and one end of the water bladder body has an installation port that communicates with the water storage cavity;
[0007] An ultrasonic miniature probe, comprising a super-energy converter and an extension, wherein the extension extends through the mounting port and is sealed to the mounting port; the super-energy converter is disposed within the water storage cavity and is rotatably connected to the extension;
[0008] A water-filling component, which is connected to the water bladder body, is used to fill the water storage cavity with water.
[0009] According to the technical solution provided by this utility model, an elastic sealing part is provided around the mounting port, the elastic sealing part has a first through hole in the middle, the extension part is provided through the first through hole, and the elastic sealing part is used to seal the mounting port.
[0010] According to the technical solution provided by this utility model, the water filling component includes: a water injection conduit, the water injection conduit having a first end and a second end, the first end being connected to the water bladder body, the water injection conduit being connected to the water storage cavity, and the second end being connected to a syringe.
[0011] According to the technical solution provided by this utility model, the first end is connected to the top end of the water bladder body.
[0012] According to the technical solution provided by this utility model, the first end is connected to the side wall of the water bladder body and is located away from the installation port.
[0013] According to the technical solution provided by this utility model, the first end is an arc-shaped structure.
[0014] According to the technical solution provided by this utility model, a switching valve is provided between the syringe and the second end, and the two ends of the switching valve are respectively threadedly connected to the syringe and the water injection conduit.
[0015] According to the technical solution provided by this utility model, both the water injection catheter and the water bladder body are made of medical rubber.
[0016] The beneficial effects of this utility model are as follows:
[0017] This invention provides a water-filled structure for a small ultrasound probe, comprising: a water-filled body and a water-filling assembly connected in communication; the water-filled body has a water-storage cavity inside; one end of the water-filled body has an installation port communicating with the water-storage cavity; the small ultrasound probe includes a high-energy transducer and an extension; the high-energy transducer is rotatably connected to the extension; the high-energy transducer extends into the water-storage cavity through the installation port and is located within the water-storage cavity; this invention utilizes water within the water-filled body as a medium to examine lesions. For high-position lesions where water is difficult to store, images can be clearly visualized, reducing operational difficulty and saving operation time; and during the examination, it avoids the risk of aspiration due to large amounts of water injected into the esophagus or stomach, preventing aspiration pneumonia and suffocation; simultaneously, the water-filled body provides fixation and protection for the small ultrasound probe, reducing probe wear and saving medical costs. Attached Figure Description
[0018] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:
[0019] Figure 1 This is a cross-sectional view of the first water bladder structure equipped with an ultrasonic probe provided by this utility model;
[0020] Figure 2 This is a cross-sectional view of the second type of water bladder structure equipped with an ultrasonic probe provided by this utility model;
[0021] Figure 3 This is a schematic diagram of the first water bladder structure provided by this utility model;
[0022] Figure 4 This is a side view of the first water bladder structure provided by this utility model.
[0023] In the figure: 1. Extension; 2. Super-energy converter; 3. Water bladder body; 4. Water injection conduit; 41. First end; 42. Second end; 5. Injector; 6. Switch valve; 7. Elastic sealing part; 8. Water storage cavity; 9. First through hole; 10. Installation port. Detailed Implementation
[0024] 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 invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.
[0025] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.
[0026] Example 1
[0027] Please refer to Figures 1-4 The present invention provides a water-filled structure for a small ultrasonic probe, comprising:
[0028] The water bladder body 3 has a water storage cavity 8 inside, and one end of the water bladder body 3 has an installation port 10 that communicates with the water storage cavity 8.
[0029] The ultrasonic probe includes an ultra-energy converter 2 and an extension 1. The extension 1 passes through the mounting port 10 and is sealed to the mounting port 10. The ultra-energy converter 2 is located in the water storage cavity 8 and is rotatably connected to the extension 1.
[0030] The water filling component is connected to the water bladder body 3 and is used to fill the water storage cavity 8 with water.
[0031] Specifically, the water bladder body 3 is made of medical-grade rubber;
[0032] Specifically, the length of the super-energy converter 2 is 20mm and the width is 2.5mm; in this embodiment, the total length of the water bladder body 3 is 28-30mm, and the width of the water bladder body 3 after filling with water is 8-10mm, so the water bladder body 3 can completely cover the super-energy converter 2; the main function of the super-energy converter 2 is to convert electrical signals into ultrasound waves and convert the reflected ultrasound waves back into electrical signals, thereby forming an image; this image can provide a high-quality view of internal organs, helping doctors to make diagnoses and treatments;
[0033] Specifically, the ultrasound probe needs to be placed inside the biopsy channel of the endoscope and enter the human body together with the endoscope for examination. The endoscope is relatively long, with the gastroscope being 1 meter and the colonoscope being 1.3 meters. Since the ultrasound probe needs to penetrate deep into the human body through the endoscope, the total length of the extension 1 of the ultrasound probe and the super-energy converter 2 is longer than the length of the endoscope, approximately 2.05 meters, so that the super-energy converter 2 is located at the end of the biopsy channel that extends into the human body. In addition, the length of the water-filled component provided in this embodiment should also be longer than the length of the endoscope, approximately 1.65 meters.
[0034] Working principle: During endoscopic examination, the ultrasound probe with the water-filled balloon body 3 is inserted into the biopsy channel of the endoscope, with the water-filling component located outside the biopsy channel. The examiner holds the endoscope and the water-filling component and inserts the endoscope into the lesion site. Once the endoscope reaches the lesion site, the high-energy converter 2 with the water-filled balloon body 3 is pushed out from the biopsy channel of the endoscope. The water-filling component fills the water storage cavity 8 with water until the water-filled balloon body 3 is full. Then, the ultrasound is turned on, and the high-energy converter 2 works within the water storage cavity 8 to visualize the examined lesion site. This invention utilizes the water inside the water-filled balloon body 3 as a medium to examine the lesion site. For high-positioned lesions that are difficult to store water in, the image can be clearly visualized, reducing the difficulty of operation and saving operation time. Furthermore, it avoids the risk of aspiration of the patient's airway due to the injection of large amounts of water into the esophagus or stomach during the examination, preventing aspiration pneumonia and suffocation. At the same time, the water-filled balloon body 3 provides fixation and protection for the ultrasound probe, reducing the wear and tear on the ultrasound probe and saving medical costs.
[0035] In some embodiments, the mounting port 10 is circumferentially surrounded by an elastic sealing portion 7, the elastic sealing portion 7 having a first through hole 9 in the middle, and the extension portion 1 passing through the first through hole 9. The elastic sealing portion 7 is used to seal the mounting port 10.
[0036] Specifically, such as Figure 1 , Figure 3 and Figure 4As shown, the installation port 10 is circumferentially surrounded by an elastic sealing part 7, which is integrally formed with the water bladder body 3. A first through hole 9 is provided in the middle of the elastic sealing part 7, the diameter of which is 2.2mm, while the width of the super-energy converter 2 is 2.5mm. Because the elastic sealing part 7 is made of medical rubber, which has elasticity, when the water bladder structure is fitted, the circumferentially surrounded elastic sealing part 7 can tightly wrap the super-energy converter 2. After insertion, the elastic sealing part 7 and the extension part 1 are completely fitted together, ensuring that the water bladder body 3 is not prone to leakage after being filled with water. At the same time, the thickness of the elastic sealing part 7 is 2-4mm to provide a tighter seal and reduce the risk of liquid leakage.
[0037] In some embodiments, the water filling assembly includes: a water injection conduit 4 having a first end 41 and a second end 42, the first end 41 being connected to the water bladder body 3, the water injection conduit 4 being connected to the water storage cavity 8, and the second end 42 being connected to a syringe 5.
[0038] Specifically, the water-filling component includes: a water-filling conduit 4, which has a first end 41 and a second end 42. The first end 41 is connected to the water-filled balloon body 3, and the water-filling conduit 4 is connected to the water-storage cavity 8. The second end 42 is connected to a syringe 5. When the endoscope reaches the lesion site, the syringe 5 injects water into the water-filling conduit 4 until the water-filled balloon is full. After the examination is completed, the syringe 5 aspirates the water out of the water-filled balloon body 3, causing the water-filled balloon to deflate.
[0039] Specifically, in this embodiment, the length of the water injection catheter 4 is 1650mm, the outer wall diameter is 2.5-3mm, and the inner wall diameter is 1.5-2mm; the water injection catheter 4 is made of medical rubber material. Because rubber has elasticity and flexibility, the water injection catheter 4 will not scratch the digestive tract mucosa when inserting and removing the endoscope.
[0040] In some embodiments, the water injection catheter 4 may also be made of medical silicone.
[0041] Specifically, in this embodiment, the length of the water bladder body 3 after being filled with water is 30mm and the width is 5mm; therefore, the syringe 5 is a 5ml-20ml syringe 5, and the syringe 5 contains sterile water for injection, so that the water bladder body 3 can be filled with water until it is completely full under direct endoscopic visualization.
[0042] In some embodiments, the first end 41 is connected to the top end of the water bladder body 3.
[0043] Specifically, such as Figure 1 As shown, the first end 41 is connected to the top end of the water bladder body 3. The top end is the end of the water bladder body 3 away from the installation port 10, so that the water injection conduit 4 is set close to the super-energy converter 2, so that when water is injected into the water bladder body 3, the water can fully contact the super-energy converter 2.
[0044] In some embodiments, the first end 41 is connected to the side wall of the water bladder body 3 and is located away from the mounting port 10.
[0045] Specifically, such as Figure 2 As shown, the first end 41 is connected to the side wall of the water bladder body 3 and is located away from the installation port 10, so that the water injection pipe 4 is located close to the super-energy converter 2, so that when water is injected into the water bladder body 3, the water can fully contact the super-energy converter 2.
[0046] In some embodiments, the first end 41 has an arc-shaped structure.
[0047] Specifically, such as Figure 1 and Figure 2 As shown, the first end 41 has an arc-shaped structure, which makes it less likely for the water injection conduit 4 to be bent when entering and exiting the scope, thus avoiding difficulties in water injection.
[0048] In some embodiments, a switching valve 6 is provided between the syringe 5 and the second end 42, and the two ends of the switching valve 6 are threadedly connected to the syringe 5 and the water injection conduit 4, respectively.
[0049] Specifically, a switching valve 6 is provided between the syringe 5 and the second end 42. The two ends of the switching valve 6 are threadedly connected to the syringe 5 and the water injection tube 4, respectively. The switching valve 6 is used to control the opening and closing of the syringe 5 and the water injection tube 4.
[0050] Workflow: Before using the ultrasound probe, first insert the ultrasound probe into the biopsy channel of the endoscope, allowing the super-energy converter 2 to extend out of the biopsy channel. Then, slip the water-filled balloon body 3 onto it. After the super-energy converter 2 is fully inserted into the water-filled balloon, the elastic sealing part 7 and the extension part 1 fit tightly together to seal the installation port 10. Next, pull the ultrasound probe back into the biopsy channel. At this point, the ultrasound probe with the water-filled balloon body 3 is located inside the biopsy channel. One end of the water-filled balloon body 3 is connected to a water injection catheter 4, which is located outside the biopsy channel. The examining physician holds the endoscope and the water injection catheter 4 and inserts the endoscope into the lesion site. Once the endoscope reaches the lesion site, push the super-energy converter 2 with the water-filled balloon body 3 out of the biopsy channel. The endoscope is then inserted, and the switch valve 6 is opened. Water is injected into the water inlet tube 4 through the syringe 5 until the water-filled balloon body 3 is full. The switch valve 6 is then closed to maintain the water-filled balloon body 3 at the required size. At this time, the ultrasound is turned on, and the super-energy converter 2 works in the water storage cavity 8 to visualize the lesion being examined. After the operation is completed, the ultrasound is turned off and the switch valve 6 is opened again. The water in the water-filled balloon body 3 is drawn back into the syringe 5 through the water inlet tube 4. The switch valve 6 is then closed again. At this time, the water-filled balloon body 3 is deflated. The super-energy converter 2, which is fitted with the water-filled balloon body 3, is retracted into the biopsy channel. After the endoscope is removed, the ultrasound probe is removed from the biopsy channel of the endoscope, and the water-filled balloon body 3, together with the water inlet tube 4, is separated from the super-energy converter 2. The operation is then complete.
[0051] The above description is merely a preferred embodiment of this utility model and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of this invention is not limited to the specific combination of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in this utility model.
Claims
1. A water-filled structure for a small ultrasonic probe, characterized in that, include: The water bladder body (3) has a water storage cavity (8) inside, and one end of the water bladder body (3) has an installation port (10) that communicates with the water storage cavity (8). An ultrasonic probe, comprising an ultrasonic transducer (2) and an extension (1), wherein the extension (1) passes through the mounting port (10) and is sealed to the mounting port (10); the ultrasonic transducer (2) is disposed in the water storage cavity (8) and is rotatably connected to the extension (1); A water-filling component is connected to the water bladder body (3) and is used to fill the water storage cavity (8) with water.
2. The water-filled structure of an ultrasonic miniature probe according to claim 1, characterized in that, The mounting port (10) is circumferentially surrounded by an elastic sealing part (7), the elastic sealing part (7) has a first through hole (9) in the middle, the extension part (1) is provided through the first through hole (9), and the elastic sealing part (7) is used to seal the mounting port (10).
3. The water-filled structure of an ultrasonic miniature probe according to claim 1, characterized in that, The water filling component includes: a water injection conduit (4), which has a first end (41) and a second end (42). The first end (41) is connected to the water bladder body (3), and the water injection conduit (4) is connected to the water storage cavity (8). The second end (42) is connected to a syringe (5).
4. The water-filled structure of an ultrasonic miniature probe according to claim 3, characterized in that, The first end (41) is connected to the top end of the water bladder body (3).
5. The water-filled structure of an ultrasonic miniature probe according to claim 3, characterized in that, The first end (41) is connected to the side wall of the water bladder body (3) and is located away from the mounting port (10).
6. The water-filled structure of an ultrasonic miniature probe according to claim 4 or 5, characterized in that, The first end (41) has an arc-shaped structure.
7. The water-filled structure of an ultrasonic miniature probe according to claim 3, characterized in that, A switching valve (6) is provided between the syringe (5) and the second end (42), and the two ends of the switching valve (6) are threadedly connected to the syringe (5) and the water injection conduit (4), respectively.
8. The water-filled structure of an ultrasonic miniature probe according to claim 3, characterized in that, Both the water injection catheter (4) and the water bladder body (3) are made of medical rubber.