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Slowly-released drug beg with air cell inside bladder

A technology of medicine bag and air bag, which is applied in the direction of drug delivery, medical formula, drug equipment, etc., can solve the problem of slow release of drugs from the bladder, and achieve the effect of thin outer pull wire, less stimulation, and convenient installation and removal

Inactive Publication Date: 2009-02-11
THE FIRST AFFILIATED HOSPITAL ZHEJIANG UNIV COLLEGE OF MEDICINE +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the deficiency that the existing technology cannot release the drug continuously and slowly in the bladder, the present invention provides a sustained-release drug capsule with an air bag in the bladder that can be continuously and slowly released in the bladder

Method used

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  • Slowly-released drug beg with air cell inside bladder
  • Slowly-released drug beg with air cell inside bladder
  • Slowly-released drug beg with air cell inside bladder

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Embodiment Construction

[0018] The present invention will be further described below in conjunction with the accompanying drawings.

[0019] refer to figure 1 , one A sustained-release drug capsule in the bladder with an air bag, comprising a drug bag 12 and an air bag 8 around the drug bag 12, the drug bag 12 is provided with a drug storage cavity 10, the front end of the drug bag 12 is provided with a small hole 11 for releasing the drug, and the rear The end is provided with a guide rod cavity 7; the sustained-release drug capsule also includes a hollow outer tube 2, the outer tube 2 is weakly connected with the rear end of the drug capsule 12, and the hollow cavity 3 of the outer tube is connected to the guide rod cavity 7 of the drug capsule. Connected, the hollow cavity 3 is provided with a guide rod 4; the outer wall of the medicine bag 12 is provided with a first inflation tube 14, which is connected to the inlet of the air bag 8 through a one-way valve 13, and the one-way valve 13 is an ai...

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Abstract

A medicine capsule with air bag able to slowly release medicine in urinary bladder is composed of a medicine capsule with medicine cavity, front medicine releasing pinhole, and rear guide rod cavity, a hollow external tube connected weakly with the rear end of medicine capsule and holding a guide rod in it, and an air bag surrounding said medicine capsule. In the wall of said medicine capsule, there are the first and the second aerating tubes and an air releasing unit.

Description

(1) Technical field [0001] The invention relates to a medical operation instrument, in particular to a drug delivery device in the bladder cavity. (2) Background technology [0002] Bladder tumors are the most common tumors of the urinary system. Intravesical infusion chemotherapy is an important treatment for bladder tumors. The bladder, as a temporary storage organ for urine, needs to discharge urine regularly. Therefore, the drug retention time of intravesical infusion chemotherapy should not be too long, which will affect the effect of bladder chemotherapy. Overactive bladder is a fairly common chronic disease, manifested as frequent urination, urgency, or combined with urge incontinence, which can seriously disturb the lives of patients. For example, by adopting the local drug delivery technology of continuous and slow release in the bladder, patients with overactive bladder can avoid the trouble of side effects and frequent drug use caused by systemic drug delivery....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61M31/00A61K9/00
Inventor 谢立平郑祥毅秦杰
Owner THE FIRST AFFILIATED HOSPITAL ZHEJIANG UNIV COLLEGE OF MEDICINE
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