Medical intervention apparatus

1. A medical intervention apparatus comprising:

a needle rotation unit configured to include a first needle rotation member, a second needle rotation member that is disposed to be separated from the first needle rotation member, and a first driver that drives the first and second needle rotation members to rectilinearly move in opposite directions; and

a needle insertion unit configured to insert a needle into a target, wherein the needle is between the first needle rotation member and the second needle rotation member, and the needle insertion unit comprises:

a first needle insertion member comprising a first roller coupling part including a first roller bracket, a first roller detachably attached to the first roller coupling part, a first guide plate inserted in the first roller bracket, and a first lower gripper detachably attached to the first roller, wherein the first guide plate includes a first guide groove that guides the needle;

a second needle insertion member comprising a second roller coupling part including a second roller bracket, a second roller detachably attached to the second roller coupling part, a second guide plate inserted in the second roller bracket, and a second lower gripper detachably attached to the second roller, wherein the second guide plate includes a second guide groove that guides the needle; and

a second driver configured to drive (i) the first needle insertion member towards and/or away from the second needle insertion member, and (ii) the first roller coupling part to rotate the first roller.

2. The medical intervention apparatus of claim 1 , wherein the first lower gripper comprises a needle contact groove along a circumference of the first lower gripper, the needle contact groove having a shape where a width of the needle contact groove progressively narrows in a direction from an outer circumference surface to a center portion of the first lower gripper, and the second lower gripper comprises a protrusion insertable into the needle contact groove.

3. The medical intervention apparatus of claim 2 , wherein the first guide plate further comprises an accommodating groove connected to the first guide groove and configured to accommodate an end of the needle.

4. The medical intervention apparatus of claim 2 , wherein the first lower gripper is in the second lower gripper, the needle contact groove and the protrusion form a triangular groove to fix a needle having any of a variety of different diameters.

5. The medical intervention apparatus of claim 1 , wherein the first guide plate further comprises an accommodating groove connected to the first guide groove and configured to accommodate an end of the needle.

6. The medical intervention apparatus of claim 1 , wherein the first driver also drives the first needle rotation member towards or away from the second needle rotation member.

7. The medical intervention apparatus of claim 6 , wherein the first driver comprises:

a first upper motor which provides power to the first needle rotation member and the second needle rotation member to move forward and backward;

a second upper motor which provides power to the first needle rotation member to linearly move from side to side, the second upper motor having an upper driving shaft;

an upper driving pulley on the upper driving shaft of the second upper motor;

an upper timing belt which is connected to the upper driving pulley;

an upper idler pulley which is connected to the upper timing belt; and

an upper LM guide which is connected to the upper idler pulley to guide the motion of the first needle rotation member.

8. The medical intervention apparatus of claim 7 , wherein the second driver comprises:

a first lower motor which provides rotation power to the first lower gripper through a coupler; and

a second lower motor which provides power the first lower gripper to linearly move from side to side.

9. The medical intervention apparatus of claim 8 , wherein the second lower motor has a lower driving shaft, and the second driver further comprises a lower driving pulley on the lower driving shaft of the second lower motor, a lower timing belt which is connected to the lower driving pulley, and a lower idler pulley which is connected to the lower timing belt.

10. The medical intervention apparatus of claim 9 , wherein the second driver further comprises a lower LM guide which receives power from the lower idler pulley to move the first lower gripper from side to side.

11. The medical intervention apparatus of claim 1 , wherein the second driver comprises:

a first lower motor which provides rotation power to the first lower gripper through a coupler;

a second lower motor which provides power the first lower gripper to linearly move from side to side, the second lower motor having a lower driving shaft;

a lower driving pulley on the lower driving shaft of the second lower motor;

a lower timing belt which is connected to the lower driving pulley;

a lower idler pulley which is connected to the lower timing belt; and

a lower LM guide which receives power from the lower idler pulley to move the first lower gripper from side to side.

12. The medical intervention apparatus of claim 11 , wherein the first needle rotation member is driven by the first driver to be closer to or farther away from the second needle rotation member.

13. The medical intervention apparatus of claim 1 , further comprising a sterilization membrane, wherein the sterilization membrane comprises:

a first fitting part in the first needle rotation member;

a second fitting part in the second needle rotation member;

a third fitting part in the first roller coupling part;

a fourth fitting part in the second roller coupling part;

a fifth fitting part, wherein the first guide plate is in the fifth fitting part; and

a sixth fitting part, wherein the second guide plate is in the sixth fitting part.

14. The medical intervention apparatus of claim 13 ,

wherein the sterilization membrane comprises vinyl, and

the first fitting part and the second fitting part comprise an elastic material.

15. The medical intervention apparatus of claim 13 ,

further comprising a cap in the third fitting part and the fourth fitting part, wherein the cap press-fitted and fixed to a corresponding one of the first and second roller brackets.

16. The medical intervention apparatus of claim 1 , wherein the first driver comprises:

a first upper motor which provides power to the first needle rotation member and the second needle rotation member to move forward and backward; and

a second upper motor which provides power to the first needle rotation member to linearly move from side to side, the second upper motor having an upper driving shaft.

17. The medical intervention apparatus of claim 16 , wherein the first driver further comprises:

an upper driving pulley on the upper driving shaft of the second upper motor;

an upper timing belt which is connected to the upper driving pulley; and

an upper idler pulley which is connected to the upper timing belt.

18. The medical intervention apparatus of claim 17 , wherein the first driver further comprises an upper LM guide which is connected to the upper idler pulley to guide the motion of the first needle rotation member.

19. The medical intervention apparatus of claim 1 , wherein the first lower gripper rotates when the first roller rotates, so that the needle moves up or down due to rotation of the first lower gripper.

20. The medical intervention apparatus of claim 1 , wherein each of the first and second guide plates is detachable from the first and second roller brackets, respectively, and is linked to movement of the first and second rollers, respectively.