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Vascular embolic agent as well as injection device and application thereof

A technology of vascular embolism and rubber piston, which is applied in the medical field to achieve the effects of good visibility, convenient operation and good conductivity

Active Publication Date: 2013-09-25
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After searching the literature of the prior art, it is found that there is no relevant literature at home and abroad involving the report of liquid metal as a vascular embolism agent

Method used

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  • Vascular embolic agent as well as injection device and application thereof
  • Vascular embolic agent as well as injection device and application thereof
  • Vascular embolic agent as well as injection device and application thereof

Examples

Experimental program
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Embodiment Construction

[0029] The implementation of the present invention will be described in detail below in conjunction with the drawings and examples.

[0030] Such as figure 1 As shown, the injection device of the vascular embolism of the present invention includes a syringe and a needle, and the syringe includes a cylinder 4, a rubber piston 5 and a piston shaft 6 are arranged in the cylinder 4, and one end of the piston shaft 6 is connected to the end of the rubber piston 5. One end and the other end are connected to the piston handle 7 outside the cylinder body 4. The other end of the rubber piston 5 is provided with a heating plate 8. The needle head includes a needle pin 3 arranged outside the cylinder body 4. The needle body 2 is made of hollow stainless steel. The end passes through the pintle 3 and communicates with the cylinder body 4, and the front end is the needle point 1. According to the difference in length and inner diameter, the needle head can have various specifications and c...

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Abstract

The invention relates to a vascular embolic agent, which is composed of liquid metal and / or liquid metal alloy. The liquid metal and liquid metal alloy have the melting points below 60 DEG C and density larger than that of blood, are non-toxic. The vascular embolic agent can be mixed with nano particles or radioactive elements or chemotherapeutics. The invention also provides an injection device of the vascular embolic agent, which has heating and temperature measuring functions. The vascular embolic agent can be used as an imaging equipment contrast agent or a tumor thermotherapy sensitizer, and can be used for preparing tumor radiotherapy and chemotherapeutics drugs. The vascular embolic agent can be extracted from the blood vessel after treatment.

Description

technical field [0001] The invention belongs to the field of medical technology, in particular to a blood vessel embolism agent and an injection device thereof. Background technique [0002] Tumor growth is inseparable from the nutrient supply of blood vessels. If the blood vessels flowing into the tumor are blocked, the tumor tissue will be ischemic and necrotic, and the volume will shrink. This is what is called starvation of tumor cells in clinical practice. Some vascular embolism materials currently used are mainly divided into solid embolic agents, such as blood clots, gelatin sponge, stainless steel coils, platinum microcoils, detachable balloons, etc.; liquid embolic agents, such as cyanoacrylic acid, absolute alcohol, etc. , lipiodol emulsion, sodium morrhuate; and various particles, microspheres embolism. Solid embolic agents require special catheters to reach blood vessels, while liquid embolic agents can pass through ordinary catheters, but they are prone to mise...

Claims

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Application Information

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IPC IPC(8): A61K9/00A61K33/24A61K49/04A61K41/00A61P35/00A61M5/44
Inventor 王倩刘静
Owner TSINGHUA UNIV
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