Patent DE833159C successfully refreshed from Google Patents.
Patent US3211476A successfully refreshed from Google Patents.
US3585986A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stylet
Assignee: Becton Dickinson and Co
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Filing: 1969-08-21
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Granted: 1971-06-22
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Expires: 1989-08-21
Abstract
Abstract A stylet providing preselected alignment of a hollow outer needle, an inner stylet and a boss and comprising a shaft having an angular portion at one end in predetermined alignment with a bevelled point at the other end, a handle having an inferior hub portion and having a key-slotted central passage communicating with an axially aligned passage in said hub portion, said hub passage adapted to permit the shaft of said needle to be inserted therethrough, said handle passage adapted to nonrotatably retain said angular portion of said needle in said key-slot, and a boss located on the exterior of said hub portion, said boss in predetermined alignment with said key-slot such that the stylet can be aligned with its bevelled end in registry with the bevelled end of the outer hollow needle. The angular portion of the stylet may be positioned in the key slot so as to provide a predetermined shaft length between the hub and the bevelled end thereof, and the angular portion may be bonded in such position.
Inventors
- 👤 Albert E Krug
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:20
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/34; A61B17/3401
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
123 words
A stylet comprising in combination: a stylet having a shaft having an angular portion at one end extending in predetermined alignment with a bevelled point at the otHer end, a handle having an inferior hub portion and having a key-slotted central passage communicating with an axially aligned passage in said hub portion, said hub passage adapted to permit the shaft of said stylet to be inserted therethrough, said handle passage adapted to nonrotatably retain said angular portion of said stylet in said key-slot, and a boss located on the exterior of said hub, said boss in predetermined alignment with said key-slot, whereby said boss is in selected alignment with the bevelled point of said stylet when said needle is mounted in said handle.
Claim 2
Dependent Claim
123 words
A stylet comprising in combination: a stylet having a shaft having an angular portion at one end extending in predetermined alignment with a bevelled point at the otHer end, a handle having an inferior hub portion and having a key-slotted central passage communicating with an axially aligned passage in said hub portion, said hub passage adapted to permit the shaft of said stylet to be inserted therethrough, said handle passage adapted to nonrotatably retain said angular portion of said stylet in said key-slot, and a boss located on the exterior of said hub, said boss in predetermined alignment with said key-slot, whereby said boss is in selected alignment with the bevelled point of said stylet when said needle is mounted in said handle.
Claim 3
Dependent Claim
140 words
A stylet comprising in combination: a stylet having a shaft having a substantially bent portion at one end said key-slot, said slot being aligned with a bevelled point at the other end, a handle having an inferior hub portion and having a key-slotted central passage communicating with an axially aligned passage in said hub portion, said hub passage adapted to permit the bore of said stylet to be inserted therethrough, said handle passage adapted to nonrotatably retain said bent portion of said stylet in the channel formed by a pair of parallel flanges positioned along the interior wall of the central passage, and a boss located on the exterior of said hub, said boss being in direct alignment with the channel formed between said flanges, whereby said boss is in direct alignment with the bevelled end point of the stylet.
Claim 4
Dependent Claim
140 words
A stylet comprising in combination: a stylet having a shaft having a substantially bent portion at one end said key-slot, said slot being aligned with a bevelled point at the other end, a handle having an inferior hub portion and having a key-slotted central passage communicating with an axially aligned passage in said hub portion, said hub passage adapted to permit the bore of said stylet to be inserted therethrough, said handle passage adapted to nonrotatably retain said bent portion of said stylet in the channel formed by a pair of parallel flanges positioned along the interior wall of the central passage, and a boss located on the exterior of said hub, said boss being in direct alignment with the channel formed between said flanges, whereby said boss is in direct alignment with the bevelled end point of the stylet.
Claim 5
Independent Claim
148 words
A method for fabricating and assembling a stylet having a boss in predetermined alignment with the bevelled end of a stylet needle comprising: a. forming a stylet handle having an inferior hub portion, forming said handle with a key-slotted central passage communicating with an axially aligned passage in said hub portion, forming said handle with a boss located on the exterior of said hub in a predetermined alignment with said key-slot, b. forming a stylet with a shaft having an angular portion extending at one end and a bevelled point in a predetermined alignment with said angular portion at the other end, c. inserting the stylet, bevelled end first, through the central passage of said stylet handle and introducing said angular portion of said stylet into said key-slot such that a preselected external length is obtained, and d. bonding said angular portion within said slot within said handle.
Claim 6
Independent Claim
148 words
A method for fabricating and assembling a stylet having a boss in predetermined alignment with the bevelled end of a stylet needle comprising: a. forming a stylet handle having an inferior hub portion, forming said handle with a key-slotted central passage communicating with an axially aligned passage in said hub portion, forming said handle with a boss located on the exterior of said hub in a predetermined alignment with said key-slot, b. forming a stylet with a shaft having an angular portion extending at one end and a bevelled point in a predetermined alignment with said angular portion at the other end, c. inserting the stylet, bevelled end first, through the central passage of said stylet handle and introducing said angular portion of said stylet into said key-slot such that a preselected external length is obtained, and d. bonding said angular portion within said slot within said handle.
Claim 7
Dependent Claim
200 words
In an outer needle in combination with an inner stylet, said needle and stylet having bevelled pointed ends in registry, said stylet having a handle attached to the other end thereof and being seated in a fitting attached to the other end of said needle, said stylet handle having a boss on the exterior thereof, said fitting having a notch in the interior thereof adapted to be engaged by said boss, the improvement wherein the bevelled point of the stylet is aligned with the handle boss and said stylet has a shaft having an angular portion extending from said other end thereof in predetermined alignment with said bevelled pointed end, said handle having an inferior hub portion and having a key-slotted central passage communicating with an axially aligned passage being in said hub portion, said hub passage adapted to permit the shaft of said stylet to be inserted therethrough, said handle passage being adapted to nonrotatably retain said angular portion of said stylet in said key-slot, said boss being positioned in predetermined alignment with said key-slot, whereby said boss is in alignment with the bevelled point of said needle and said stylet when said stylet is mounted in said handle.
Claim 8
Dependent Claim
200 words
In an outer needle in combination with an inner stylet, said needle and stylet having bevelled pointed ends in registry, said stylet having a handle attached to the other end thereof and being seated in a fitting attached to the other end of said needle, said stylet handle having a boss on the exterior thereof, said fitting having a notch in the interior thereof adapted to be engaged by said boss, the improvement wherein the bevelled point of the stylet is aligned with the handle boss and said stylet has a shaft having an angular portion extending from said other end thereof in predetermined alignment with said bevelled pointed end, said handle having an inferior hub portion and having a key-slotted central passage communicating with an axially aligned passage being in said hub portion, said hub passage adapted to permit the shaft of said stylet to be inserted therethrough, said handle passage being adapted to nonrotatably retain said angular portion of said stylet in said key-slot, said boss being positioned in predetermined alignment with said key-slot, whereby said boss is in alignment with the bevelled point of said needle and said stylet when said stylet is mounted in said handle.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-21 | 1974-12-21 | 1975-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-21 | 1978-12-21 | 1979-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-21 | 1982-12-21 | 1983-06-22 | $7700.00 | Window Closed / Lapsed |