Drug delivery device

A drug delivery device and drug delivery technology, applied in X-ray/γ-ray/particle irradiation therapy, balloon catheter, radiation therapy, etc., can solve the problem of difficult continuous treatment of tumor treatment, low effective utilization rate of drugs, damage to health, etc. problems, to achieve the effect of reducing treatment costs, relieving pain, and reducing dosage

Pending Publication Date: 2020-06-26
SHINEYARD MEDICAL DEVICE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a drug delivery device, aiming to solve the technical problems that traditional

Method used

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Experimental program
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Effect test

Embodiment 1

[0069] see Figure 4 , in this embodiment, the number of catheter lumen 201 is two, which are divided into a first catheter lumen and a second catheter lumen, the first through hole 211a communicates with the first catheter lumen, and the second through hole 211b communicates with the first catheter lumen. Two catheter lumens, the capsule chamber 101 is divided into a first capsule chamber and a second capsule chamber, and the balloon wall 310 is made of a liquid-impermeable material;

[0070] The first catheter lumen communicates with the first capsule chamber, and communicates with the tissue space through the first through hole 211a; the second catheter lumen communicates with the second capsule chamber, and communicates with the drug delivery space through the second through hole 211b Connected;

[0071] The first capsule chamber and the first catheter lumen are used to suck the liquid in the tissue space, and can also directly inject chemotherapy liquid into the tissue s...

Embodiment 2

[0077] see Figure 4 , in this embodiment, the number of catheter lumen 201 is two, which are divided into a first catheter lumen and a second catheter lumen, the first through hole 211a communicates with the first catheter lumen, and the second through hole 211b communicates with the first catheter lumen. Two catheter lumens, the capsule chamber 101 is divided into a first capsule chamber and a second capsule chamber, the balloon wall 310 is made of polymer material, and the balloon wall 310 is provided with micropores connecting the tissue space and the administration space;

[0078] The first catheter lumen communicates with the first capsule chamber, and communicates with the tissue space through the first through hole 211a; the second catheter lumen communicates with the second capsule chamber, and communicates with the drug delivery space through the second through hole 211b Connected;

[0079] The first capsule chamber and the first catheter lumen are used to pump liqu...

Embodiment 3

[0085] see Figure 5 , in this embodiment, a balloon separation layer 320 is provided inside the balloon wall 310, and the balloon separation layer 320 divides the administration space into the first administration space 301 of the inner layer and the second administration space of the outer layer 302;

[0086] The number of the catheter lumen 201 is two, divided into a first catheter lumen and a second catheter lumen, the first through hole 211a communicates with the first catheter lumen, the second through hole 211b communicates with the second catheter lumen, and the capsule chamber 101 points are divided into the first capsule chamber and the second capsule chamber;

[0087] The first catheter lumen communicates with the first capsule chamber, and communicates with the first drug delivery space 301 through the first through hole 211a; the second catheter lumen communicates with the second capsule chamber, and communicates with the first drug delivery space 301 through the...

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PUM

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Abstract

The invention provides a drug delivery device. The device includes a drug injection bag, a catheter and a balloon; the drug injection bag includes at least two different bag chambers; the catheter includes a catheter wall and a diaphragm, and the diaphragm separates the interior of the catheter into different catheter cavities; one end of each catheter cavity is in one-to-one communication with one corresponding bag chamber; the balloon includes a balloon wall, and the balloon wall surrounds a drug delivery space; and the parts, corresponding to the different catheter cavities, of the catheterwall are provided with a first through hole and a second through hole, the first through hole communicates with the drug delivery space or a tissue space outside the balloon wall, and the second through hole communicates with the drug delivery space. The drug delivery device provided by the invention is left under skin of a human body after tumor resection surgery, can inject a drug into the druginjection bag from the outside of the skin or extract a waste liquid from the drug injection bag, and drain the drug to the balloon implanted in a tumor cavity through the catheter, and facilitates the drug to direct acting on the site of a lesion; and a single drug delivery device can be used to separately replenish different medicine liquids and take out the waste liquid in the body.

Description

technical field [0001] The invention belongs to the technical field of medical devices, in particular to a drug delivery device. Background technique [0002] In the face of tumors, currently the most effective medical methods include surgery, radiotherapy and chemotherapy. Due to the unclear tissue boundaries of tumors and the possibility of tumor cells breaking through normal tissue boundaries, metastasizing, and spreading to new parts of the body, the success rate of eradicating tumors by surgery alone is very low, and combined treatment with radiation therapy and chemotherapy is often required to reduce the recurrence rate. In most cases, the location of tumor recurrence is within 2cm around the primary tumor. The recurrent tumor not only expands in scope, but also greatly improves the degree of malignancy, which has a significant impact on the prognosis of patients; Changes have occurred, the condition of peripheral tissues such as the scalp and skull is poor, and the...

Claims

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Application Information

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IPC IPC(8): A61M25/10A61N5/10
CPCA61M25/0026A61M25/1011A61M2025/0008A61M2025/105A61M2025/1079A61N5/1002A61N5/1007A61N2005/1021A61N2005/1096
Inventor 宋杰许鹏官国锋杜晨晓廖土寿
Owner SHINEYARD MEDICAL DEVICE CO LTD
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