A scalable balloon device for an ultrasonic endoscope

Abstract

The utility model discloses a kind of telescopic balloon equipment for ultrasonic endoscope, belong to medical instrument technical field, mainly solve the difficulty of duodenum water storage in the process of scanning in prior art ultrasonic endoscope, injected water is difficult to accumulate when scanning, while a large number of water injection also exist aspiration, abdominal distension and other risks, so as to need to spend a lot of time and operation to obtain better image display problem when teat part scanning, this balloon equipment includes ultrasonic endoscope, ultrasonic endoscope is inserted to the inside of duodenum cavity, the inside of ultrasonic endoscope is provided with biopsy channel, biopsy channel is inserted and is provided with double-cavity water injection catheter in the inside, and one end of double-cavity water injection catheter is worn out by biopsy channel and extends to duodenum cavity, double-cavity water injection catheter is provided with balloon water delivery cavity and intestinal cavity water delivery cavity in the inside, one end of double-cavity water injection catheter is fixedly connected with balloon body by connecting ring, and the outer surface of double-cavity water injection catheter is provided with water outlet.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and more specifically, to a retractable balloon device for an ultrasonic endoscope. Background Technology

[0002] The duodenal papilla is an important anatomical structure in the human body, serving as the opening of the bile and pancreatic ducts. Lesions in this area, such as adenomas and cancers, can cause serious clinical symptoms like jaundice and acute pancreatitis. However, because it is located on the lateral wall of the descending duodenum, conventional endoscopic examinations are difficult to perform, and imaging examinations such as CT and MRI have low resolution, making it difficult to clearly determine the extent of bile and pancreatic duct involvement. Ultrasound endoscopy allows for close observation of this area and can change the cross-section for dynamic observation of the bile and pancreatic ducts. To better visualize lesions, water needs to be injected into the duodenal lumen to maintain a certain intestinal tension while providing a good ultrasound medium.

[0003] However, existing ultrasound endoscopes have difficulty storing water in the duodenum during scanning, and the injected water is difficult to accumulate during the scan. At the same time, large amounts of water injection also pose risks such as aspiration and abdominal distension. As a result, scanning the nipple requires a lot of time and operation to obtain a good image. To avoid this phenomenon, it is necessary to design a retractable balloon device for ultrasound endoscopes. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] To achieve the above objectives, this utility model provides a retractable balloon device for ultrasonic endoscopy, which is achieved by the following specific technical means:

[0006] A retractable balloon device for an ultrasonic endoscope includes an ultrasonic endoscope inserted into the duodenal lumen. The ultrasonic endoscope has a biopsy channel inside, and a double-lumen water injection catheter is inserted inside the biopsy channel. One end of the double-lumen water injection catheter extends out of the biopsy channel and into the duodenal lumen. The double-lumen water injection catheter has a balloon water delivery chamber and an intestinal lumen water delivery chamber inside. One end of the double-lumen water injection catheter is fixedly connected to the balloon body by a connecting ring. The outer surface of the double-lumen water injection catheter has a water outlet.

[0007] Preferably, the other end of the dual-lumen water inlet catheter is provided with a first water inlet connector and a second water inlet connector. The first water inlet connector is connected to the balloon water delivery chamber, and the second water inlet connector is connected to the intestinal water delivery chamber.

[0008] Preferably, the balloon body is connected to the balloon water delivery chamber, and the water outlet is connected to the intestinal water delivery chamber; the balloon water delivery chamber and the intestinal water delivery chamber are separated by an isolation layer.

[0009] Preferably, an ultrasound probe is provided at one end of the ultrasound endoscope, and a transducer is installed on the ultrasound probe.

[0010] Preferably, one end of the biopsy channel is provided with a forceps port, and the other end of the biopsy channel is provided with an instrument outlet. The double-lumen water injection catheter can be inserted through the forceps port and then exited through the instrument outlet.

[0011] Preferably, the ultrasonic endoscope has an internal air and water supply pipeline, and one end of the ultrasonic endoscope is provided with a beveled part, on which a nozzle is provided, and the nozzle is connected to one end of the air and water supply pipeline.

[0012] Preferably, two lighting windows are provided on the inclined surface, and an observation window is installed on the inclined surface.

[0013] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0014] This invention, through its biopsy channel, dual-lumen water injection catheter, balloon water delivery chamber, intestinal water delivery chamber, balloon body, and water outlet, can accumulate the injected water during the scanning process, facilitating water storage. The accumulated water can support the intestinal cavity around the papilla to clearly display the papilla structure, eliminating the need for a lot of time and operation to obtain better image display, and avoiding the need to inject a large amount of water, thus eliminating the risks of aspiration, abdominal distension, etc. Attached Figure Description

[0015] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a cross-sectional view of the water injection conduit.

[0018] Figure 3 This is an enlarged structural diagram of point A;

[0019] Figure 4 A schematic diagram of the structure for inflating the balloon body with water;

[0020] Figure 5 A schematic diagram of the structure for dilating the duodenal lumen with water;

[0021] Figure 6 This is a schematic diagram of the perspective structure of an ultrasonic endoscope.

[0022] Figure 7 This is a schematic diagram of a partial structure of an ultrasonic endoscope.

[0023] In the diagram: 1. Endoscopic ultrasound; 2. Duodenal lumen; 3. Ultrasound probe; 4. Biopsy channel; 5. Dual-lumen water inlet catheter; 6. Balloon water inlet; 7. Intestinal lumen water inlet; 8. Connecting ring; 9. Balloon body; 10. Outlet; 11. Isolation layer; 12. First water inlet connector; 13. Second water inlet connector; 14. Gas and water supply lines; 15. Transducer; 16. Forceps inlet; 17. Instrument outlet; 18. Nozzle; 19. Illumination window; 20. Observation window. Detailed Implementation

[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments. The present invention provides the following embodiments.

[0027] like Figure 1 , Figure 2 , Figure 3 , Figure 4 as well as Figure 5The diagram shows a retractable balloon device for ultrasound endoscopy in this embodiment. The retractable balloon device includes an ultrasound endoscope 1, which is inserted into the duodenal lumen 2. A biopsy channel 4 is provided inside the ultrasound endoscope 1, and a double-lumen water-injection catheter 5 is inserted inside the biopsy channel 4. One end of the double-lumen water-injection catheter 5 extends from the biopsy channel 4 into the duodenal lumen 2. The double-lumen water-injection catheter 5 has a balloon water-injection chamber 6 and an intestinal lumen water-injection chamber 7 inside. One end of the double-lumen water-injection catheter 5 is fixedly connected to the balloon body 9 via a connecting ring 8. A water outlet 10 is provided on the outer surface of the double-lumen water-injection catheter 5, and the other end of the double-lumen water-injection catheter 5 has a first water inlet connector 12 and a second water inlet connector 13. During the scanning of lesions in the duodenal papilla using ultrasound endoscopy, the ultrasound endoscope 1 is inserted into the duodenal lumen 2 of the human body, allowing the ultrasound endoscope 1 to closely observe the lesions. At the duodenal papilla, the double-lumen water inlet catheter 5 is inserted into the biopsy channel 4, and the end with the balloon body 9 is extended five centimeters in front of the endoscopic ultrasound 1 along the biopsy channel 4. Water is first injected into the balloon water delivery chamber 6 through the first water inlet connector 12, and then injected into the balloon body 9 through the balloon water delivery chamber 6. After the balloon body 9 is injected with water, it will expand and seal one end of the duodenal lumen 2. At the same time, water is injected into the intestinal lumen water delivery chamber 7 through the second water inlet connector 13. After the intestinal lumen water delivery chamber 7 is delivered, the water is discharged from the outlet 10, so that the water is directly discharged into the duodenal lumen 2. With the sealing of the balloon body 9, the injected water can be accumulated during the scanning process, which is convenient for water storage. The accumulated water can support the intestinal lumen around the papilla to clearly display the papilla structure. It does not require a lot of time and operation to obtain a better image display, and it does not require the injection of a large amount of water, thus eliminating the risks of aspiration, abdominal distension and other risks.

[0028] It is worth noting that in this embodiment, the first water inlet connector 12 is connected to the balloon water delivery chamber 6, and the second water inlet connector 13 is connected to the intestinal water delivery chamber 7; the balloon body 9 is connected to the balloon water delivery chamber 6, and the water outlet 10 is connected to the intestinal water delivery chamber 7; the balloon water delivery chamber 6 and the intestinal water delivery chamber 7 are separated by an isolation layer 11.

[0029] like Figure 6 as well as Figure 7As shown, in this embodiment, the ultrasonic endoscope 1 has an internal air and water supply pipeline 14. One end of the ultrasonic endoscope 1 is provided with a beveled surface, on which a nozzle 18 is provided. The nozzle 18 is connected to one end of the air and water supply pipeline 14. Two illumination windows 19 are provided on the beveled surface, and an observation window 20 is installed on the beveled surface. The nozzle 18 can spray air or water onto the lens of the observation window 20 to clean the lens. The air and water supply pipeline 14 is used to provide air and water to the nozzle 18 to complete the air and water supply. The two illumination windows 19 can emit illumination light to provide supplemental lighting for the scanning operation environment. The observation window 20 is the lens that can form an endoscopic image on the machine body.

[0030] like Figure 6 as well as Figure 7 As shown, in this embodiment, one end of the biopsy channel 4 is provided with a forceps port 16, which can be used to introduce surgical instruments, forceps or puncture needles into the human body through the ultrasound endoscope 1. The other end of the biopsy channel 4 is provided with an instrument outlet 17, and the double-lumen water injection catheter 5 can be inserted through the forceps port 16 and then exited through the instrument outlet 17.

[0031] like Figure 7 As shown, in this embodiment, an ultrasound probe 3 is provided at one end of the ultrasound endoscope 1, and a transducer 15 is installed on the ultrasound probe 3. The ultrasound probe 3 is used to hold the transducer 15, and the transducer 15 is used to transmit and receive ultrasound waves.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A retractable balloon device for an ultrasonic endoscope, comprising an ultrasonic endoscope (1) inserted into the interior of the duodenal lumen (2), characterized in that: The ultrasound endoscope (1) has a biopsy channel (4) inside. A double-lumen water injection catheter (5) is inserted inside the biopsy channel (4). One end of the double-lumen water injection catheter (5) passes through the biopsy channel (4) and extends into the duodenal lumen (2). The double-lumen water injection catheter (5) has a balloon water delivery chamber (6) and an intestinal lumen water delivery chamber (7) inside. One end of the double-lumen water injection catheter (5) is fixedly connected to the balloon body (9) through a connecting ring (8). The outer surface of the double-lumen water injection catheter (5) has a water outlet (10).

2. The retractable balloon device for an ultrasonic endoscope according to claim 1, characterized in that: The other end of the double-lumen water inlet catheter (5) is provided with a first water inlet connector (12) and a second water inlet connector (13). The first water inlet connector (12) is connected to the balloon water delivery chamber (6), and the second water inlet connector (13) is connected to the intestinal water delivery chamber (7).

3. The retractable balloon device for ultrasonic endoscopy according to claim 1, characterized in that: The balloon body (9) is connected to the balloon water delivery chamber (6), and the water outlet (10) is connected to the intestinal water delivery chamber (7); the balloon water delivery chamber (6) and the intestinal water delivery chamber (7) are separated by an isolation layer (11).

4. A retractable balloon device for an ultrasonic endoscope according to claim 1, characterized in that: An ultrasound probe (3) is provided at one end of the ultrasound endoscope (1), and a transducer (15) is installed on the ultrasound probe (3).

5. A retractable balloon device for an ultrasonic endoscope according to claim 1, characterized in that: One end of the biopsy channel (4) is provided with a forceps port (16), and the other end of the biopsy channel (4) is provided with an instrument outlet (17). The double-lumen water injection catheter (5) can be inserted through the forceps port (16) and then exited through the instrument outlet (17).

6. A retractable balloon device for an ultrasonic endoscope according to claim 1, characterized in that: An air supply and water supply pipeline (14) is provided inside the ultrasound endoscope (1). One end of the ultrasound endoscope (1) is provided with a beveled part, and a nozzle (18) is provided on the beveled part. The nozzle (18) is connected to one end of the air supply and water supply pipeline (14).

7. A retractable balloon device for an ultrasonic endoscope according to claim 6, characterized in that: Two lighting windows (19) are provided on the inclined surface, and an observation window (20) is installed on the inclined surface.

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