Novel vessel sheath

Abstract

The invention relates to a novel vessel sheath which comprises a tearable sheath tube assembly (1) and an expansion tube assembly (2). The tearable sheath tube assembly (1) comprises a rear cover (11), a rear cover (12), a tearable sheath seat (13), a tearable bleeding stopping valve (14), a tearable sheath tube (15), snap fasteners (16) and (17), a side branch tube (18) and a three-way valve (19). The expansion tube assembly (2) comprises an expansion tube seat (21) and an expansion tube (22). The novel vessel sheath belongs to a vascular intervention medical instrument and not only can solve the problem that an existing vessel sheath cannot completely exit in partial clinical application, but also can avoid the defects of continuous blood leakage and easiness for forming thrombi when a tearing vessel sheath is in use. In the clinical application of the novel vessel sheath, not only can the vessel be sealed up to prevent blood from flowing out, but also two handles (131) and (132) of the tearable sheath seat (13) can be pinched as required and after the tearable sheath seat (13) is respectively torn outwards, the rear covers (11) and (12), the tearable bleeding stopping valve (14) and the tearable sheath tube (15) which are connected with the tearable sheath seat (13) can be divided into two halves along the center lines, so that the vessel sheath is separated and retracted from other instruments inserted in the vessel sheath.

Description

technical field [0001] The invention relates to a medical device, in particular to a medical device for establishing a channel from the outside to the blood vessel of a human body. Background technique [0002] Vascular interventional therapy has made great progress in recent years, especially cardiac interventional therapy and peripheral vascular interventional therapy. Such as interventional treatment of coronary heart disease, cardiac pacing, electrophysiological diagnosis and treatment, minimally invasive interventional treatment of congenital heart disease, interventional treatment of peripheral arteries and veins, vascular catheterization techniques, etc. These treatment methods are relatively complicated, especially during the treatment process, various instruments need to enter into the diseased parts of human organs or blood vessels, including main treatment instruments, auxiliary treatment instruments, diagnostic instruments, various drugs, etc. These treatments a...

AI Technical Summary

Problems solved by technology

However, the vascular sheaths that can be torn apart at present do not have hemostatic valves and side branch tubes that can be torn apart, which makes it impossible to prevent blood from leaking from the proximal end of the vascular sheath during arterial surgery. When injecting drugs or aspirating blood into the cavity, the suction device cannot be connected

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