Puncture device
AssigneeTerumo Kabushiki Kaisha
InventorsMasakatsu Kawaura, Nao Yokoi, Shigeki Ariura
Life of this patent
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Abstract
A puncture device is disclosed, which can include a puncture needle curved in an arc, turnably supported around an axis (J1) as a turning center, and having a needle tip which punctures a living body when the puncture needle is turned; a urethral insertion member having a urethral insertion portion of a linear shape which is inserted into the urethra; and a frame capable of connecting the puncture needle and the urethral insertion member to each other, the frame turnably supporting the puncture needle. When the puncture needle is turned, the needle tip of the puncture needle has a locus (plane f9), which is inclined by an inclination angle (θ2) of 20 to 60 degrees with respect to a plane (f2) orthogonal to the urethral insertion portion.
Claims16
A puncture device, comprising:
- a puncture needle curved in an arc and turnably supported around a turning center provided by a center of the arc, the puncture needle having a needle tip configured to puncture a living body when the puncture needle is turned;
- and
- an insertion member having a linear portion of a linear shape at least at part of the insertion member, the linear portion being configured to be inserted into a urethra or a vagina, wherein
- when the puncture needle is turned, the needle tip enters the living body from one inguinal region, passes between the urethra and the vagina in a plane with an inclination angle with respect to a plane orthogonal to the linear portion, and exits the living body from an other inguinal region on an opposite side of the living body.
A method of forming a path in living body tissue, the method comprising:
- inserting an insertion member into a urethra or a vagina, the insertion member having a linear portion of a linear shape at least at part of the insertion member;
- puncturing the living body with a puncture needle, the puncture needle being curved in an arc and turnably supported around a turning center provided by a center of the arc, the puncture needle having a needle tip configured to puncture the living body when the puncture needle is turned;
- and
- turning the puncture needle such that the needle tip enters the living body tissue from one inguinal region, passes between the urethra and the vagina in a plane with an inclination angle with respect to a plane orthogonal to the linear portion, and exits the living body from an other inguinal region on an opposite side of the living body.
Dependencies are inferred from the claim text.