Novel deformable implantable infusion port and use method thereof

Abstract

The invention discloses a novel deformable implantable infusion port and a using method thereof. The infusion port comprises a deformable shell (1) and a diaphragm (6), a cavity (5) used for liquid medicine flowing is formed in the deformable shell (1), one end of the cavity (5) is used for being communicated with a catheter (4), and the diaphragm (6) is used for a puncture needle to puncture and inject the liquid medicine into the cavity (5). According to the infusion port, the deformable shell is adopted and deforms under the action of external force, minimally invasive incision implantation is achieved, the stress of the deformable shell is reduced or disappears after implantation, the deformable shell recovers to the deformation state without the action of external force or micro force and is attached to subcutaneous tissue, and subcutaneous overturning and displacement of the infusion port are effectively prevented.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a novel deformable implantable infusion port and its application method. Background technique [0002] The infusion port is generally used for the establishment of long-term dynamic and static blood vessels or subarachnoid access, and is usually used in conjunction with a right-angle non-invasive needle (butterfly needle), through the connection between the non-invasive puncture needle and the infusion port to achieve infusion and medical drug input into the patient's body . The clinical application mode of this type of infusion port is: the infusion port is placed on the surface of the fascia tissue in the subcutaneous skin bag of the patient through a skin incision, and fixed there. The infusion port can be used for long-term and repeated infusion of drugs, blood products, nutrients or other medically active substances into the patient's venous, arterial and subarachno...

AI Technical Summary

Problems solved by technology

[0004] In more detail, the puncture method of the right-angle non-injury needle is different from the ordinary infusion straight needle puncture method, except that the manufacturing process of the right-angle non-injury needle is relatively complicated, and in actual use, due to the thickness of the skin and subcutaneous tissue on the surface of the patient’s infusion port It varies from person to person, and the thickness of the silicone septum in the infusion port is fixed, so in some patients, the non-injury needle body may be too short or too long during use. When the skin and subcutaneous tissue of obese patients are thicker, plus The thickness of the silicone septum, the needle tip of the non-injured needle may not completely pierce the silicone septum to reach the reservoir, which may cause extravasation of the drug solution, and when the thickness of the skin and subcutaneous tissue of the emaciated patient is thin, the tail end of the non-damaged needle The needle body may remain too long outside the body, which will cause difficulty in fixing the needle body to the skin

Therefore, the selection of the effective length of the puncture needle needs to comprehensively consider the thickness of the infusion port body implanted into the subcutaneous tissue, the thickness of the puncture septum, and the height of the infusion port storage cavity. occurrence of symptoms

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