Patent ID: 11883072
Assignee: FINE MEDIX CO., LTD
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 12:
13. A medical system comprising:
a fine needle aspiration device and an incision device which are inserted into a body by using an endoscope,
wherein the fine needle aspiration device comprises:
an injection needle which is injected into a surgical site;
an injection needle tube which surrounds the injection needle;
a first limiting unit which limits a length of a needlepoint of the injection needle protruding from the injection needle tube;
a syringe which is connected to the injection needle for tissue collection and medicine injection; and
a second limiting unit which limits injection flow between the injection needle and the syringe by actuation of an exposing part that allows the injection flow when actuated and prevents the injection flow when not actuated,
wherein the incision device comprises:
a knife configured to cut the surgical site;
a knife tube which surrounds the knife; and
a third limiting unit which limits a length of a cutting edge of the knife protruding from the knife tube, and
wherein at least one of the first limiting unit, the second limiting unit, and the third limiting unit is formed so that a limiting function is released when an external force is applied by an operator and the limiting function is restored when the external force is removed,
wherein the syringe comprises:
a hollow barrel which has a bore; and
a plunger which reciprocates along the bore,
wherein the second limiting unit comprises:
a fourth housing which has a fourth through hole formed to penetrate in one direction and a fourth intersecting hole intersecting with the fourth through hole;
a fourth core which is provided to be reciprocable in a seventh direction and an eighth direction which is the opposite direction of the seventh direction along the fourth intersecting hole and has a fourth communicating hole which is communicable with the fourth through hole; and
a fourth spring which applies an elastic force to the fourth core in the eighth direction,
wherein one end of the fourth through hole communicates with the syringe, and
wherein the other end of the fourth through hole communicates with the injection needle.