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An esophageal local applicator for acute radiation esophagitis

A radiation esophagitis and local drug delivery technology is applied to the esophagus local applicator for local administration of the esophagus. It can solve the problems such as the difficulty of staying in the drug and the difficulty of swallowing and eating, and achieve the effect of controllability, reasonable structure and precise action.

Active Publication Date: 2022-05-20
AFFILIATED CANCER HOSPITAL OF SHANDONG FIRST MEDICAL UNIV SHANDONG CANCER INST (SHANDONG CANCER HOSPITAL)
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  • Abstract
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  • Claims
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Problems solved by technology

[0005] The invention provides a local esophageal drug delivery device for acute radiation esophagitis, aiming to solve the problem of difficulty in staying on the surface of the esophageal mucosa or the short stay time of the medicine when taking a liquid preparation slowly to treat acute radiation esophagitis, and the problem of swallowing and taking medicine. Difficulty eating

Method used

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  • An esophageal local applicator for acute radiation esophagitis
  • An esophageal local applicator for acute radiation esophagitis
  • An esophageal local applicator for acute radiation esophagitis

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Embodiment Construction

[0041]In order to clearly illustrate the technical features of this solution, the present invention will be described in detail below through specific implementation modes and in conjunction with the accompanying drawings.

[0042] like figure 1 As shown in , the esophageal local applicator for acute radiation esophagitis in this embodiment is specially aimed at the treatment of acute radiation esophagitis during radiotherapy. The drug delivery device includes a capsule 100, the capsule 100 includes a capsule housing, a micro-transmission mechanism fixed in the capsule housing, and a micro-motor 103 in the micro-transmission mechanism is electrically connected with a power supply 104 and a microcontroller 105, so the capsule 100 It is a controllable capsule robot. The power supply 104 includes a battery pack for powering the micro-controller 105 and the micro-motor 103. The wireless transceiver on the micro-controller 105 can receive the instruction signal of the external cont...

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Abstract

The invention discloses an esophageal local applicator for acute radiation esophagitis, aiming to solve the problems that liquid medicine is difficult to stay on the surface of the esophagus mucous membrane or the stay time is too short, and it is difficult to swallow the medicine and eat. The drug delivery device includes a capsule, a flexible tube and a fixer, the fixer includes an ear hook, one end of the flexible tube is connected to the capsule, and a suitable connector is connected between the other end of the flexible tube and the ear hook, and the capsule includes a capsule shell , a micro-transmission mechanism fixed in the capsule shell, the capsule shell includes an elastic head membrane and a capsule body, the micro-motor in the micro-transmission mechanism is electrically connected to the power supply and the microcontroller, the micro-transmission mechanism includes a screw mechanism and a stretching mechanism, The screw mechanism drives the stretching mechanism to expand the elastic cephalic membrane to narrow the gap between the outer periphery of the elastic cephalic membrane and the esophageal wall to form a liquid drug column and increase the residence time of the drug acting on the surface of the esophageal mucosa.

Description

Technical field: [0001] The invention belongs to the technical field of medical devices, and relates to a local esophageal drug delivery device, in particular for local drug delivery to the esophagus when clinical symptoms of acute radiation esophagitis occur during radiotherapy. Background technique: [0002] Radiation therapy is one of the main means of tumor treatment. It can effectively kill tumor cells, but at the same time it will inevitably cause radiation damage to normal tissues and organs around the tumor, resulting in various complications and sequelae. Acute radiation esophagitis is a complication of local radiotherapy, which often occurs during radiotherapy for lung cancer, esophageal cancer and other chest tumors. The time of occurrence is mostly when the cumulative radiation dose to the esophagus reaches DT20Gy-40Gy. Acute radiation esophagitis is an aseptic inflammation caused by radiation damage to the esophageal mucosa. Ulceration, erosive and exudative ch...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61M31/00A61J15/00
CPCA61M31/00A61J15/0023Y02A50/30
Inventor 朱婉琦魏文鑫孔铭李晓琳郑美珠张欣欣
Owner AFFILIATED CANCER HOSPITAL OF SHANDONG FIRST MEDICAL UNIV SHANDONG CANCER INST (SHANDONG CANCER HOSPITAL)
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