Devices for delivering medicaments and devices and components thereof

Abstract

A device includes a container for containing a medicament, a cavity and a valve. The cavity is arranged in the container and includes a channel, an inlet of the cavity and an outlet of the cavity, the inlet of the cavity communicates with the interface, and the outlet of the cavity faces the bottom of the container. The valve includes a first through hole and a valve body. The first through hole communicates with the cavity inlet and the cavity outlet respectively. The valve body is placed in the cavity and divides the cavity into a pressure relief cavity and a pressure receiving cavity. The device provided by the present invention can deliver the medicament in the container in a more stable and gentle manner, effectively avoiding the sudden release of pressure and causing the medicament to be reacted by the target tissue to cover the field of view of the laparoscope, so that the drug (such as: hemostatic agent) It is more precise, and at the same time improves the continuity of laparoscopic surgery, improves the hemostasis effect, and shortens the operation time.

Description

technical field [0001] The invention relates to a drug delivery container, in particular to a device driven by a pressure source to deliver medicine to a target tissue, so as to facilitate the medicine to exert a therapeutic effect on the target tissue. Background technique [0002] At present, for traumatic bleeding caused by trauma or surgery, no matter what kind of hemostasis technique is used, it is inseparable from the conventional means of "compression hemostasis". Common ones are: Band-aids for external trauma, and hemostatic sponges, hemostatic microspheres, hemostatic medical membranes and hemostatic gauze made by non-woven technology used in various operations. Although these hemostasis techniques have effectively improved the hemostatic efficiency, they must be compressed for a period of time before the external force is removed, and it must be observed whether there are still bleeding points at the wound. If there is still bleeding, continue to use hemostatic ag...

AI Technical Summary

Problems solved by technology

The device can quickly stop the bleeding target tissue, but at the moment of opening the valve, there is an instantaneous pressure release—the pressure of the injected fluid is increased instantaneously, so that the therapeutic agent has an instantaneous impact on the tissue under the pressure of the hemostatic powder, The reaction force of the action site produced by the impact on the tissue makes the hemostatic powder cover the field of vision, making it impossible to continue to observe. continuity of laparoscopic surgery

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