초록 ▼

The present invention involves a device for tissue, especially hard tissue, penetration device which incorporated a novel paddle-shaped needle for low friction rotatory penetration of hard tissue and a controlled delivery or extraction system for transfer of material from to device into a tissue sit

The present invention involves a device for tissue, especially hard tissue, penetration device which incorporated a novel paddle-shaped needle for low friction rotatory penetration of hard tissue and a controlled delivery or extraction system for transfer of material from to device into a tissue site or transfer of material from the tissue site to the device. The delivery system or extraction system includes at least on solenoid or other similar device.

대표청구항 ▼

1. A needle comprising a parallelogram shape cross section including at least two cutting surfaces and at least two non-cutting surfaces, where the cutting surfaces are opposed and the non-cutting surfaces are opposed and the cutting surfaces are short sides of the parallelogram. 2. The needle of cl

1. A needle comprising a parallelogram shape cross section including at least two cutting surfaces and at least two non-cutting surfaces, where the cutting surfaces are opposed and the non-cutting surfaces are opposed and the cutting surfaces are short sides of the parallelogram. 2. The needle of claim 1, wherein an acute angle of the parallelogram is between about 80° and about 10°. 3. The needle of claim 1, wherein an acute angle of the parallelogram is between about 80° and about 50°. 4. The needle of claim 1, wherein an acute angle of the parallelogram is between about 80° and about 60°. 5. The needle of claim 1, wherein an acute angle of the parallelogram is about 70°. 6. A needle comprising a hollow shaft, an aperture and a tip having a parallelogram shape cross-section and including two opposed cutting surfaces and two opposed non-cutting surfaces and the cutting surfaces are short sides of the parallelogram. 7. The needle of claim 6, wherein an acute angle of the parallelogram is between about 80° and about 10°. 8. The needle of claim 6, wherein an acute angle of the parallelogram is between about 80° and about 50°. 9. The device of claim 6, wherein an acute angle of the parallelogram is between about 80° and about 60°. 10. The needle of claim 6, wherein an acute angle of the parallelogram is between about 70°. 11. The needle of claim 6, further comprising a flange portion located on the shaft above the aperture and adapted to control penetration depth into a hard tissue. 12. A needle comprising a hollow shaft, an aperture, a flange and a tip having a parallelogram shape cross-section and including two opposed cutting surfaces associated with short sides of the parallelogram and two opposed non-cutting surfaces, where the flange is located on the shaft above the aperture and is adapted to control penetration depth into a hard tissue. 13. The device of claim 12, wherein an acute angle of the parallelogram is between about 80° and about 10°. 14. The needle of claim 12, wherein an acute angle of the parallelogram is between about 80° and about 50°. 15. The needle of claim 12, wherein an acute angle of the parallelogram is between about 80° and about 60°. 16. The needle of claim 12, wherein an acute angle of the parallelogram is between about 70°. 17. The needle of claim 12, further comprising a top portion and a bottom portion having matting flange portions which mate to form the flange. 18. A needle comprising a quadrilateral shape cross section having two opposed cutting surface and two opposed non-cutting surfaces, where the cutting surfaces are with short sides of the quadrilateral and the non-cutting surfaces are with long sides of the quadrilateral. 19. The needle of claim 18, wherein an acute angle of the quadrilateral is between about 80° and about 10°. 20. The needle of claim 18, wherein an acute angle of the quadrilateral is between about 80° and about 50°. 21. The needle of claim 18, wherein an acute angle of the quadrilateral is between about 80° and about 60°. 22. The needle of claim 18, wherein an acute angle of the quadrilateral is about 70°.