Minimally invasive intervention implantable drug-supplying device with one-way valve

Abstract

The invention discloses a minimally invasive intervention implantable drug-supplying device with a one-way valve. The drug-supplying device comprises a chemotherapy pump body, an extracorporeal marking part and an auxiliary accessory, wherein the extracorporeal marking part and the auxiliary accessory are matched with the chemotherapy pump body. The chemotherapy pump body comprises a pump body with the one-way valve, the pump body is connected with a matched catheter through a locking device, a locking inner sleeve baffle is arranged between the one-way valve and the catheter, and the catheter comprises through catheter bodies and catheter bodies with crack valves on the wall and at the front end; the pump body comprises a pump base, a matched puncture diaphragm is arranged at the upper end of the pump base, a pump cover matched with the pump base is arranged at the upper end of the puncture diaphragm, the one-way valve is connected with the side end of the pump base in a sealed mode, and a pump cavity is formed among the pump cover, the puncture diaphragm, the pump base and the one-way valve in a sealed mode. The implantable drug-supplying device has the advantages that drugs can directly enter a determined portion through a drug pump and the catheter, the drug concentration and the dosage of the focus portion are increased greatly, the lethality to lesion cells is increased, the curative effect on the lesion cells is improved, and the practicability of the device is effectively improved.

Description

[0001] technical field [0002] The invention relates to the field of medical devices, in particular to a minimally invasive one-way valve implanted drug delivery device. [0003] Background technique [0004] Implantable chemotherapy pump, also known as implantable drug delivery device, implantable pain relief pump or implantable infusion system, is a device suitable for targeted infusion of drugs to cancer and tumor patients and pain patients. Medical device; the clinical use is that after implanted under the skin, it can be repeatedly punctured and infused with drugs, and the patient can use it for a long time. [0005] The existing traditional implantable chemotherapy pump must use positive pressure needle withdrawal method to ensure that the liquid (such as blood) in the lesion site does not flow back into the catheter when the needle is withdrawn. The so-called positive pressure needle withdrawal method refers to Pull out the needle while injecting the liquid medicin...

AI Technical Summary

Problems solved by technology

[0007] The existing traditional implantable chemotherapy pump is to be implanted in the subcutaneous tissue during the operation. Since there is a certain distance between the embedding part of the pump body and the lesion site, if the catheter is connected to the other end of the pump body to reach the lesion site, The traditional method is to anesthetize the patient with anesthesia to embed the skin tissue between the pump body and the lesion, then use a scalpel to cut a groove in the skin tissue between the pump body and the lesion, and bury the catheter behind the subcutaneous tissue Then suture the skin tissue. This method will inevitably cause great pain and hidden dangers to the patient, even life safety, and will also cause incalculable difficulties and labor intensity to the smooth operation.

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