Abstract: Photosensitive compositions containing nanosized light emitting materials and (meth)acrylic polymer are suitable for use in a variety of optical applications, for example the preparation of quantum material doped photoresist films, especially for optical devices. Optical films can be prepared be by: a) providing the photosensitive composition onto a substrate, and b) polymerizing the photosensitive composition by exposing the photosensitive composition to radiation.

Abstract: The lead insertion support device is comprised of an insertion support part with a pointed end so as to be inserted the tip part inserted into a vein without damaging the wall of the blood vessel; and an insertion support device body with elasticity and flexibility further including a connection part attached to the insertion support part; a support part provided so as to project to the connection part perpendicularly; and a holding part attached to the tip portion of the support part, capable of be held with a finger. Therefore, it can inert the lead into a blood vessel quickly and safely even though the user is not skilled, and it can smoothly insert the lead into the blood vessel.

Abstract: An electrode device for myocardial and the like comprises an electrode device body with elasticity; the electrode parts provided in a tip part of the electrode device body or a portion adjacent the tip part of the electrode device body, having a prevention part for missing the electrode parts; and the grip parts provided so as to nip the electrode device body so that it can avoid fear of infection disease and heart failure and connect the electrode device from an epimyocardium side

Abstract: A ligative suturer according to the present invention comprises a first rod which is connected with a ligative sutural member, and a second rod which is connected with the first rod to be bendable in the horizontal direction (L, R). A thread guard member which is capable of protrusion and storage is provided in the first rod, while a lever which can select the bending direction of the first rod in response to the situation of employment by an operator is provided in the second rod. Due to this ligative suturer, the operator can regularly bend the first rod toward him whether he handles the suturer with his left or right hand.

Abstract: An electrode apparatus for cardiac pacing suitable for use in an emergency in which there is provided a needle, a sheath and an electrode needle wire. First, the chest wall is pierced through with the needle covered with the sheath. Thereafter, the needle is pulled out from the sheath and, in place thereof, the electrode needle wire is inserted and subsequently the heart is pierced with the electrode needle wire in preparation for the pacing operation.