Esophageal capsules

Abstract

This utility model discloses an esophageal capsule, comprising a capsule body, a connecting tube, and a connector. The capsule body includes an outer shell, inside which is a sponge ellipsoid for collecting exfoliated cells and a base located below the sponge ellipsoid. One end of the outer shell has a through hole. One end of the connecting tube passes through the through hole in the outer shell and the sponge ellipsoid in sequence, and its end is fixed in a through hole in the base. The other end of the connecting tube is connected to the connector. Gastric fluid is collected through the base and the connecting tube for extracting gastric fluid. After the capsule shell melts, a gastric fluid sample is extracted using an external syringe and injected into a special testing bottle for further analysis of Helicobacter pylori urease activity or DNA. The connecting tube is pulled to make the sponge ellipsoid fit the esophageal lumen, scraping and collecting digestive tract epithelial cells, diseased tissue cells, and any bacteria, viruses, and other microorganisms that may be present. The sponge ellipsoid is then pulled out of the esophagus and placed in a prepared cell preservation solution for testing.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, specifically relating to an esophageal capsule. Background Technology

[0002] Esophageal cancer, also known as gastrointestinal cancer, is a common malignant tumor of the digestive tract. Currently, the diagnosis of early esophageal cancer mainly relies on gastroscopy combined with histopathological examination. Inserting a gastroscope through the mouth into the stomach is an uncomfortable procedure, causing many people to fear and reject gastroscopy. A similar capsule, with a thin string attached to one end, is swallowed with water and inserted into the gastroesophageal junction. The edible capsule shell dissolves, releasing a soft cell collector, which is then gently pulled out through the string. The cell collector collects cells from the esophageal mucosa during the friction process. Finally, the extracted esophageal exfoliated cells can be tested, allowing for earlier detection of precancerous lesions and early esophageal cancer. Helicobacter pylori infection is a significant cause of gastritis and gastric cancer, and gastric juice testing is a highly accurate diagnostic method. Currently, there is no device that can simultaneously collect gastric juice and digestive tract epithelial cells and diseased tissue cells. Utility Model Content

[0003] In order to overcome the shortcomings of the prior art, this utility model provides an esophageal capsule.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: An esophageal capsule includes a capsule body, a connecting tube, and a connector. The capsule body includes an outer shell, inside which is a sponge ellipsoid for collecting exfoliated cells and a base located below the sponge ellipsoid. One end of the outer shell has a through hole, and the inside of the base has a through hole for gastric juice to pass through. One end of the connecting tube passes through the through hole of the outer shell and the sponge ellipsoid in sequence, and the end is fixed in the through hole of the base. The other end of the connecting tube is connected to the connector.

[0005] Furthermore, the base includes a base support rod and a base support head, the base support head being disposed at one end of the base support rod, and the two being integrally formed and connected; the through hole passes through the base support rod and the base support head.

[0006] Furthermore, the base is made of ABS material and is mushroom-shaped.

[0007] Furthermore, the connecting tube is transparent and made of TPU.

[0008] Furthermore, the connector has fins on both sides and an interface that is compatible with the injection head of the syringe.

[0009] Furthermore, the outer shell material is tapioca starch or gelatin.

[0010] Furthermore, the sponge ellipsoid is made of porous polyurethane.

[0011] Furthermore, the outer shell includes a cap and a housing, with the cap inserted into the housing.

[0012] The capsule device of this invention collects gastric fluid through a mushroom-shaped base and a connecting tube for extracting gastric fluid. After the capsule shell melts, an external syringe connects to the connecting tube via a connector, allowing gastric fluid samples to be extracted and injected into a dedicated testing bottle for further analysis of Helicobacter pylori urease activity or DNA. Pulling the connecting tube causes a sponge ellipsoid to fit into the esophageal lumen, scraping and collecting digestive tract epithelial cells, diseased tissue cells, and any present bacteria, viruses, and other microorganisms. The sponge ellipsoid is then pulled out of the esophagus and placed in a prepared cell preservation solution for testing. This method is suitable for patients whose recent medication may interfere with other testing methods, providing a simple and effective solution for accurate detection of Helicobacter pylori infection. Attached Figure Description

[0013] Fig. 1 This is a schematic diagram of the structure of this utility model; Fig. 2 This is a schematic diagram of the explosion state of this utility model; Fig. 3 This is a schematic diagram of gastric juice being extracted after the capsule shell melts inside the body. In the diagram, 1. Capsule body; 1-1 Sponge ellipsoid; 1-2 Outer shell; 1-3 Base; 2. Connecting tube; 3. Connector; 3-1 Wing handle; 3-2 Interface; 4. Syringe. Detailed Implementation

[0014] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0015] An esophageal capsule, such as Figs. 1 to 3As shown, the capsule includes a capsule body 1, a connecting tube 2, and a connector 3. The capsule body 1 includes an outer shell 1-2, which includes a cap and a shell. The cap is inserted into the shell. The outer shell 1-2 contains a sponge ellipsoid 1-1 for collecting exfoliated cells and a base 1-3 located below the sponge ellipsoid 1-1. The cap has a through hole. The base 1-3 has a through hole for gastric juice to pass through. The base 1-3 includes a base rod and a base head. The base head is located at one end of the base rod, and the two are integrally formed and connected. The through hole passes through the base rod and the base head. One end of the connecting tube 2 passes through the through hole and the sponge ellipsoid 1-1 in sequence, and the end is fixed in the through hole of the base rod. The other end of the connecting tube 2 is connected to the connector 3.

[0016] In this embodiment, the base 1-3 is made of ABS material and is mushroom-shaped.

[0017] In this embodiment, the connecting tube 2 is transparent and made of TPU.

[0018] In this embodiment, the connector 3 has fins 3-1 on both sides and an interface 3-2, which is compatible with the injection head of the syringe.

[0019] In this embodiment, the outer shell 1-2 is made of tapioca starch or gelatin.

[0020] In this embodiment, the sponge ellipsoid 1-1 is made of porous polyurethane.

[0021] The connecting tube 2 is a hollow thin tube, and the sponge ellipsoid 1-1 moves with the connecting tube 2. The connecting tube 2 and the through hole of the base support 1-3 are bonded together with UV adhesive.

[0022] The working principle and usage process of this utility model are as follows: the connecting tube 2 is passed through the through hole of the cap body and then through the major axis of the sponge ellipsoid 1-1. Finally, the connecting tube 2 is glued to the through hole of the rod of the base support 1-3 with UV glue. Then, the sponge ellipsoid 1-1 and the base support 1-3 are put into the shell, the sponge ellipsoid 1-1 is compressed and stuffed into the shell, and finally the cap body is covered to assemble a capsule for use. It is low in cost and can be used only once. In use, the sponge ellipsoid 1-1, along with the shell and cap, is swallowed with water. As the shell and cap dissolve, the sponge ellipsoid 1-1, compressed within them, is released and returns to its ellipsoidal shape. At this point, a 20mL syringe 4 can be attached to the connector. Gastric fluid is drawn from the distal end of the tube 3-2 outside the body using the syringe 4. After drawing the gastric fluid, it is injected into a special vial for testing. Then, the connecting tube 2 is slowly pulled to allow the sponge ellipsoid 1-1 to fit into the esophageal lumen, scraping and collecting digestive tract epithelial cells, diseased tissue cells, and any bacteria, viruses, and other microorganisms that may be present. The sponge ellipsoid 1-1 is then pulled out of the esophagus and placed in the prepared cell preservation solution for testing.

[0023] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An esophageal capsule, comprising a capsule body, a connecting tube, and a connector, characterized in that, The capsule body includes an outer shell, inside which is a sponge ellipsoid for collecting exfoliated cells and a base located below the sponge ellipsoid. One end of the outer shell has a through hole, and the inside of the base has a through hole for gastric juice to pass through. One end of the connecting tube passes through the through hole of the outer shell and the sponge ellipsoid in sequence, and the end is fixed in the through hole of the base. The other end of the connecting tube is connected to a connector.

2. The esophageal capsule according to claim 1, characterized in that, The base includes a base support rod and a base support head, with the base support head located at one end of the base support rod and the two integrally formed and connected; the through hole passes through the base support rod and the base support head.

3. The esophageal capsule according to claim 1 or 2, characterized in that, The base is made of ABS.

4. The esophageal capsule according to claim 1, characterized in that, The connecting tube is transparent and made of TPU.

5. The esophageal capsule according to claim 1, characterized in that, The connector has fins on both sides and an interface that is compatible with the injection head of the syringe.

6. The esophageal capsule according to claim 1, characterized in that, The outer shell is made of tapioca starch or gelatin.

7. The esophageal capsule according to claim 1, characterized in that, The sponge ellipsoid is made of porous polyurethane.

8. The esophageal capsule according to claim 1, characterized in that, The outer shell includes a cap and a housing, with the cap inserted into the housing.

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