Liquid medicine injection device
First Claim
1. A liquid medicine injection device comprising:
- a case;
a liquid medicine tank that is disposed in the case and where liquid medicine is received;
an electro-osmosis pump that is connected with the liquid medicine tank and moves the liquid medicine;
a needle assembly that receives the liquid medicine by being connected to the electro-osmosis pump and injects the received liquid medicine into a human body; and
an adhesive member combined to the case and for attaching to a human body,wherein the needle assembly comprises;
a knob;
a rotation member that rotates with rotation of the knob and provided with a locking protrusion portion in an internal wall thereof;
a moving member that is accommodated in the rotation member and moves in an axial direction or is fixed at a predetermined position by movement of the locking protrusion portion;
a needle combined to the moving member; and
a spring that is elastically supported between the rotation member and the moving member, andthe moving member comprises;
a first locking groove portion that is supported by the locking groove portion;
a straight line guide groove portion that is connected with the first locking groove portion and provided along an axial direction to guide the locking protrusion portion;
a slope guide groove portion that is connected with the straight line guide groove portion and provided along a slope direction to guide the locking protrusion portion; and
a second locking groove portion that is connected with the slope guide groove portion and supported by the locking groove portion.
1 Assignment
0 Petitions
Accused Products
Abstract
The present invention discloses a liquid medicine injection device that is attached to a patient'"'"'s body to inject liquid medicine such as insulin at an appropriate time.
A liquid medicine injection device according to the present invention includes: a case; a liquid medicine tank that is disposed in the case and where liquid medicine is received; an electro-osmosis pump that is connected with the liquid medicine tank and moves the liquid medicine; a needle assembly that receives the liquid medicine by being connected to the electro-osmosis pump and injects the received liquid medicine into a human body; and an adhesive member combined to the case and attached to the human body.
28 Citations
6 Claims
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1. A liquid medicine injection device comprising:
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a case; a liquid medicine tank that is disposed in the case and where liquid medicine is received; an electro-osmosis pump that is connected with the liquid medicine tank and moves the liquid medicine; a needle assembly that receives the liquid medicine by being connected to the electro-osmosis pump and injects the received liquid medicine into a human body; and an adhesive member combined to the case and for attaching to a human body, wherein the needle assembly comprises; a knob; a rotation member that rotates with rotation of the knob and provided with a locking protrusion portion in an internal wall thereof; a moving member that is accommodated in the rotation member and moves in an axial direction or is fixed at a predetermined position by movement of the locking protrusion portion; a needle combined to the moving member; and a spring that is elastically supported between the rotation member and the moving member, and the moving member comprises; a first locking groove portion that is supported by the locking groove portion; a straight line guide groove portion that is connected with the first locking groove portion and provided along an axial direction to guide the locking protrusion portion; a slope guide groove portion that is connected with the straight line guide groove portion and provided along a slope direction to guide the locking protrusion portion; and a second locking groove portion that is connected with the slope guide groove portion and supported by the locking groove portion. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification