IMPLANT NEEDLE AND METHOD FOR PRODUCTION
First Claim
1. An implant needle for introducing an implant into a body of a patient, comprising:
- a hollow needle main body having a main body axis, an outer peripheral surface and a receiving portion, the receiving portion configured to receive an implant; and
a taper-shaped tip portion cut from the hollow needle main body, the taper-shaped tip portion having an edge point and further comprising;
a first slant surface contiguous to the outer peripheral surface and formed at a first predetermined angle with respect to the main body axis, the first slant surface having an inner non-cutting edge and an outer non-cutting edge; and
a pair of second slant surfaces each symmetric with respect to the edge point and the main body axis, each second slant surface forming a second predetermined angle with respect to the main body axis that is larger than the first predetermined angle, and each second slant surface having a non-cutting inner edge and a cutting outer edge that is contiguous to the edge point.
2 Assignments
0 Petitions
Accused Products
Abstract
Disclosed is an implant needle for introducing an implant into a patient. The needle has a hollow main body having a receiving portion configured to receive an implant. A taper-shaped tip portion is cut from the hollow needle main body and includes a first slant surface contiguous to an outer peripheral surface of the main body and formed at a first predetermined angle with respect to an axis of the main body. The first slant surface has an inner non-cutting edge and an outer non-cutting edge. The needle also includes a pair of second slant surfaces, each of which forms a second predetermined angle with respect to the main body axis that is larger than the first predetermined angle. Each second slant surface has an inner non-cutting edge and an outer cutting edge that is contiguous with an edge point of the tip portion. A method of manufacturing the implant needle is also disclosed.
18 Citations
13 Claims
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1. An implant needle for introducing an implant into a body of a patient, comprising:
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a hollow needle main body having a main body axis, an outer peripheral surface and a receiving portion, the receiving portion configured to receive an implant; and a taper-shaped tip portion cut from the hollow needle main body, the taper-shaped tip portion having an edge point and further comprising; a first slant surface contiguous to the outer peripheral surface and formed at a first predetermined angle with respect to the main body axis, the first slant surface having an inner non-cutting edge and an outer non-cutting edge; and a pair of second slant surfaces each symmetric with respect to the edge point and the main body axis, each second slant surface forming a second predetermined angle with respect to the main body axis that is larger than the first predetermined angle, and each second slant surface having a non-cutting inner edge and a cutting outer edge that is contiguous to the edge point. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for manufacturing an implant needle, comprising:
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providing a hollow needle main body having a lumen surrounded by a peripheral wall; producing a receiving portion configured to receive an implant and provided in the hollow needle main body; and producing a taper-shaped tip portion by cutting a tip portion of the hollow needle main body; wherein the taper-shaped tip portion is produced with a first slant surface contiguous to an outer peripheral surface of the hollow needle main body and formed at a predetermined angle with respect to an axis of the needle main body, and a pair of second slant surfaces each symmetric with respect to an edge point and the axis of the needle main body and formed at a larger angle with respect to the axis of the needle main body than the predetermined angle, wherein an outer edge of each second slant surface is produced as a cutting edge contiguous to the edge point, wherein inner and outer edges of the first slant surface are provided as non-cutting edges and an inner edge of each second slant surface is provided as a non-cutting edge. - View Dependent Claims (13)
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Specification