EP0647434A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Tissue piercing members
Assignee: United States Surgical Corp
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Filing: 1994-10-05
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Granted: —
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Expires: 2014-10-05
Abstract
Abstract A piercing tip 10 for penetrating body tissue is provided which includes a conical body 12 and a triangular cutting blade 24 positioned within a slot 22 formed in the conical body. The cutting blade includes a proximal mounting flange 111 (Fig. 6) which extends outwardly from the conical body and is configured for mounting at the distal end of an obturator of a trocar assembly. <IMAGE>
Inventors
- 👤 Wayne P. Young
- 👤 Salvatore Castro
- 👤 Dominick L. Mastri
- 👤 Henry Bolanos
- 👤 George M. Chelednik
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 14:46
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/34; A61B17/3417; A61B2017/0046; A61B2017/00473
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
68 words
A piercing tip for use in piercing body tissue comprising: (a) a conical body defining an outer face and a base of circular cross-section; and (b) a substantially planar cutting blade having a triangular cutting region, the cutting blade being positioned within a slot formed in the conical body such that the triangular cutting region extends at least in part beyond the outer face of the conical body.
Claim 2
Dependent Claim
18 words
The piercing tip of claim 1, wherein the slot is transverse to the base of the conical body.
Claim 3
Dependent Claim
27 words
The piercing tip of any of the preceding claims, wherein the conical body defines a vertex and the slot is in a plane which transects the vertex.
Claim 4
Dependent Claim
34 words
The piercing tip of any of the preceding claims, wherein the conical body comprises first and second body portions and the slot is formed in a region intermediate the first and second body portions.
Claim 5
Dependent Claim
27 words
The piercing tip of claim 4, wherein the first body portion defines a distal face, a proximal face, a planar side wall and a frustoconical side wall.
Claim 6
Dependent Claim
47 words
The piercing tip of claim 4 of 5, wherein the second body portion defines a distal conical portion, an intermediate partial frustoconical portion, and a proximal cylindrical portion and further wherein the first body portion cooperates with the intermediate partial frustoconical portion to define a conical body.
Claim 7
Dependent Claim
23 words
The piercing tip of claim 6, wherein planar cutting blade defines an aperture which is adapted to receive the distal conical portion therethrough.
Claim 8
Dependent Claim
23 words
The piercing tip of any of the preceding claims, further comprising an attachment member for securing the cutting blade to the conical body.
Claim 9
Dependent Claim
32 words
The piercing tip of any of the preceding claims, wherein the triangular cutting region of the planar cutting blade defines a base and wherein a substantially rectangular region extends from the base.
Claim 10
Dependent Claim
27 words
The piercing tip of claim 9, wherein the width of the rectangular region is no greater than the diameter of the circular base of the cutting body.
Claim 11
Dependent Claim
38 words
The piercing tip of any of the preceding claims, where the triangular cutting region defines an isosceles triangle and wherein the side walls of the isoceles triangle are substantially parallel to the outer face of the conical body.
Claim 12
Dependent Claim
24 words
The piercing tip of any of the preceding claims, wherein the cutting blade includes a proximal mounting flange configured to mount to an obturator.
Claim 13
Dependent Claim
80 words
A trocar comprising: an obturator defining a longitudinal axis; a conical piercing tip body defining an outer face and a base of circular cross-section transverse to the longitudinal axis, the circular base being mounted to the obturator; and a substantially planar cutting blade having a triangular cutting region, the cutting blade being positioned within a slot formed in the conical body such that the triangular cutting region extends at least in part beyond the outer face of the conical body.
Claim 14
Dependent Claim
24 words
The trocar of claim 13, wherein the piercing tip includes a flange which projects outwardly from the circular base which mounts to the obturator.
References Cited (Backward Citations)
No citation records indexed.
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