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Medical applicator with compressed gas assist

A technology of compressed gas and spray head, applied in liquid spraying device, device for coating liquid on the surface, spraying device, etc., can solve the problem of not being able to prevent the spraying of compressed gas

Inactive Publication Date: 2016-08-03
MEDMIX SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This gun is clearly not designed for medical applications and does not protect against the possibility of compressed gas being ejected from the nozzle at undesired high pressures

Method used

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  • Medical applicator with compressed gas assist
  • Medical applicator with compressed gas assist
  • Medical applicator with compressed gas assist

Examples

Experimental program
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Effect test

Embodiment Construction

[0072] In this context, the direction specification is used as follows: "Distal direction" means the direction in which the substance to be sprayed is discharged. The proximal direction is the direction opposite to the above-mentioned direction.

[0073] exist Figures 1 to 3 A syringe 100 is shown in FIG. 1 with a spray head 200 mounted thereon, which is not designed according to the invention, which is shown here in the most basic possible configuration for the purpose of illustrating the spray head. The tip 100 comprises a cylindrical syringe body 101 , on the proximal end of which two opposite, radially protruding retaining flanges 102 are formed. Inside said syringe body, a movable piston 107 together with the syringe body defines a fluid reservoir. The piston 107 can be pushed forward in the syringe body by means of the piston rod 103 and the thumb rest 104 in the distal direction in order to expel the fluid product from the fluid reservoir through the outlet region 106 ...

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Abstract

The invention proposes a medical applicator ( 300 ) for spraying one or more fluid substances with compressed gas, a spraying device constructed accordingly, and a method for applying the spraying device. In order to avoid excessive air pressure, the spray head has an overpressure valve (310). The overpressure valve vents the compressed gas from the spray head if the air pressure exceeds a threshold pressure. The risk of gas embolism in medical applications of such spray heads can thus be reduced.

Description

technical field [0001] The invention relates to a spray head for connection to at least one reservoir with a flowable substance and for spraying the substance with compressed gas, for example compressed air or another compressed gas such as carbon dioxide. Background technique [0002] Furthermore, spray heads for spraying one or more substances with compressed gas assistance are used in the medical field, for example for spraying medical two-component adhesives based on fibrinogen and thrombin. Such so-called fibrin glues are used in medicine, for example to close wounds, stop bleeding (hemostasis) or as tissue adhesives to secure skin grafts. Such a spray head is connected for use to one or more reservoirs with the substance to be sprayed, for example to a single syringe with already premixed adhesive or to a double syringe with the components of the adhesive. To spray the substance, the spray head is on the one hand charged with compressed gas in order to generate a comp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/00B05B7/04
CPCA61B17/00491A61B2017/00495A61B2017/00522B05C17/00593B05B7/066B05B7/2467B05C17/00553A61M11/02A61M11/06
Inventor 安迪·格雷特
Owner MEDMIX SYST
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