Apparatus for injecting tube-type implant into eye
A tube-shaped implant insertion device may comprise: a needle having an internal space to accommodate a tube-shaped implant inserted into an eyeball; a handle connected to the needle to manipulate the position of the needle; and a guide pin disposed to support the implant accommodated in the needle, and having a hollow size smaller than the outer diameter of the implant. When using the tube-shaped implant insertion device, a tube-shaped implant is inserted into an eyeball by supporting same by means of a hollow guide pin and, after insertion, the needle is retracted by using a handle, and thus, there is an advantage in that an implant with an internally inserted wick can be easily inserted into the eyeball while not being separated from a suture.
1 . An insertion device for a tube-type implant, comprising:
an implant having a tube shape for insertion into an eyeball, wherein the implant further comprises a ripcord inserted into the implant;
a needle having an inner space for accommodating the implant;
a handle connected to the needle for manipulation of a position of the needle; and
a guide pin disposed to support the implant accommodated in the needle and having a hollow portion smaller than an outer diameter of the implant;
wherein the hollow portion of the guide pin is formed so that the ripcord is inserted into the hollow portion, and
wherein the insertion device for a tube-type implant further comprises a support rod at least partially disposed in the guide pin to support the ripcord.
2 . The insertion device for a tube-type implant according to claim 1 , further comprising:
a handle body connecting the needle to the handle; and
a housing in which the needle, the handle body, and the guide pin are accommodated, the housing comprising an opening extending in one direction,
wherein the handle is exposed to outside through the opening of the housing and is configured to be slidable along the opening.
3 . The insertion device for a tube-type implant according to claim 2 , further comprising a feed adjustment unit coupled to one end of the housing and the guide pin to adjust a relative position of the guide pin with respect to the needle.
4 . The insertion device for a tube-type implant according to claim 2 , wherein the opening comprises a first portion extending in a first direction, and a second portion connected to the first portion from a second direction different from the first direction to limit movement of the handle along the first direction,
wherein the handle body is disposed in the housing to be movable in the first direction and rotatable in the second direction.
5 . The insertion device for a tube-type implant according to claim 2 , further comprising a stopper formed at an end of the housing to limit movement of the housing into an eyeball.
6 . The insertion device for a tube-type implant according to claim 5 , wherein the stopper has a diameter greater than a diameter of the needle.
7 . The insertion device for a tube-type implant according to claim 2 , wherein the needle is coupled to the handle to selectively expose the implant to outside of the needle by sliding along an outer surface of the guide pin through manipulation of the handle.
8 . The insertion device for a tube-type implant according to claim 7 , further comprising a piston coupled to the guide pin and disposed in the housing to selectively contact the handle body through manipulation of the handle.
9 . The insertion device for a tube-type implant according to claim 8 , further comprising:
a pipe coupled to the housing and connected to the piston; and
a packing member disposed between the piston and the pipe.
10 . The insertion device for a tube-type implant according to claim 9 , wherein the packing member is configured to allow relative movement of the piston with respect to the pipe through manipulation of the handle, in a state where the handle body is in contact with the piston.
11 . The insertion device for a tube-type implant according to claim 1 , further comprising one or more markers formed on a surface of the needle.