US4889112A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for performing a tracheostomy operation
Assignee: Waltap Ltd
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Filing: 1987-06-26
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Granted: 1989-12-26
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Expires: 2007-06-26
Abstract
Abstract Apparatus and method for performing a tracheostomy operation wherein the trachea is penetrated using a syringe needle (23) attached to a syringe (20) to form a small opening in the trachea. A guide wire (30) is inserted into the trachea through the needle (23) and after the syringe (20) is removed from the needle. The needle (23) is then removed from the trachea leaving the guide wire (30) inserted in the trachea. An instrument (T) specifically adapted for use in tracheostomy operations is inserted into the small trachea opening produced by the needle (23) while being guided by the guide wire (30). The instrument (T) being opened after insertion into the trachea to widen the trachea opening and a cannula for insertion into the opening of the trachea after having been widened by the instrument (T).
Inventors
- 👤 Aryeh Schachner
- 👤 Yoel Ovil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:14
CPC Classifications
A; A61; A61M; A61M16/00; A61M16/04; A61M16/0465; A61M16/0472; A61B; A61B17/00; A61B17/28; A61B17/2812; A61B17/34; A61B17/3415
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
339 words
An instrument particularly useful in performing a tracheostomy operation of a subject, comprising: a pair of pivotable members pivotably mounted to each other at an intermediate located thereof; each of said pivotable members including a hand grip at one end and an elongated nose at the opposite end extending 20-30 mm at an angle of 90°-135° laterally to its respective pivotable member; the two elongated noses being formed at their inner confronting faces with recesses; the outer faces of the two elongated noses being of substantially conical configuration decreasing in diameter towards their outer tips, facilitating the insertion of the noses into a trachea opening; said two elongated noses being movable apart by squeezing the hand grips towards each other to widen said trachea opening; a spring for urging the pair of pivotable members to their closed positions with the inner faces of their noses in abutting contact with each other, and a locking member comprising a pair of links pivotably mounted to each other at the inner ends and each pivotably mounted at its outer end to one of the hand grips for thereby locking the pair of pivotable members together in their closed position; said locking member being manually movable to unlock the pair of pivotable members and thereby to permit the hand grips to be squeezed together to move said noses apart; and a guard at the juncture of the pivotable members and their elongated noses, to prevent undue penetration underneath the skin; said guard including two sections, each section being secured to the juncture of one of the pivotable members and its respective elongated nose; wherein each of said guard sections is planar, of the general configuration of a quadrant of a circle, and extends substantially parallel to its respective pivotable member, such that when the pair of pivotable members are in their closed positions, the two guard sections together define a substantially semi-circular guard with the diametrical straight edge substantially aligned with the elongated noses, and with the curved edge below the elongated noses.
Claim 2
Dependent Claim
339 words
An instrument particularly useful in performing a tracheostomy operation of a subject, comprising: a pair of pivotable members pivotably mounted to each other at an intermediate located thereof; each of said pivotable members including a hand grip at one end and an elongated nose at the opposite end extending 20-30 mm at an angle of 90°-135° laterally to its respective pivotable member; the two elongated noses being formed at their inner confronting faces with recesses; the outer faces of the two elongated noses being of substantially conical configuration decreasing in diameter towards their outer tips, facilitating the insertion of the noses into a trachea opening; said two elongated noses being movable apart by squeezing the hand grips towards each other to widen said trachea opening; a spring for urging the pair of pivotable members to their closed positions with the inner faces of their noses in abutting contact with each other, and a locking member comprising a pair of links pivotably mounted to each other at the inner ends and each pivotably mounted at its outer end to one of the hand grips for thereby locking the pair of pivotable members together in their closed position; said locking member being manually movable to unlock the pair of pivotable members and thereby to permit the hand grips to be squeezed together to move said noses apart; and a guard at the juncture of the pivotable members and their elongated noses, to prevent undue penetration underneath the skin; said guard including two sections, each section being secured to the juncture of one of the pivotable members and its respective elongated nose; wherein each of said guard sections is planar, of the general configuration of a quadrant of a circle, and extends substantially parallel to its respective pivotable member, such that when the pair of pivotable members are in their closed positions, the two guard sections together define a substantially semi-circular guard with the diametrical straight edge substantially aligned with the elongated noses, and with the curved edge below the elongated noses.
Claim 3
Dependent Claim
47 words
The instrument according to claim 1, wherein said recesses formed at the inner confronting faces of the two elongated noses are of a diameter of about 1.5 mm for accommodating a wire of about 1.0 mm diameter inserted into the opening in the trachea of the subject.
Claim 4
Dependent Claim
232 words
An instrument particularly useful in performing a tracheostomy operation of a subject, comprising: a pair of pivotable members pivotably mounted to each other at an intermediate located thereof; each of said pivotable members including a hand grip at one end and an elongated nose at the opposite end extending laterally to its respective pivotable member; the two elongated noses being formed at their inner confronting faces with recesses; the outer faces of the two elongated noses being of substantially conical configuration decreasing in diameter towards their outer tips, facilitating the insertion of the noses into a trachea opening; said two elongated noses being movable apart by squeezing the hand grips towards each other to widen said trachea opening; and a guard at the juncture of the pivotable members and their elongated noses, to prevent undue penetration underneath the skin; said guard including two sections, each section being secured to the juncture of one of the pivotable members and its respective elongated nose; wherein each of said guard sections is planar, of the general configuration of a quadrant of a circle, and extends substantially parallel to its respective pivotable member, such that when the pair of pivotable members are in their closed positions, the two guard sections together define a substantially semi-circular guard with the diametrical straight edge substantially aligned with the elongated noses, and with the curved edge below the elongated noses.
Claim 5
Dependent Claim
232 words
An instrument particularly useful in performing a tracheostomy operation of a subject, comprising: a pair of pivotable members pivotably mounted to each other at an intermediate located thereof; each of said pivotable members including a hand grip at one end and an elongated nose at the opposite end extending laterally to its respective pivotable member; the two elongated noses being formed at their inner confronting faces with recesses; the outer faces of the two elongated noses being of substantially conical configuration decreasing in diameter towards their outer tips, facilitating the insertion of the noses into a trachea opening; said two elongated noses being movable apart by squeezing the hand grips towards each other to widen said trachea opening; and a guard at the juncture of the pivotable members and their elongated noses, to prevent undue penetration underneath the skin; said guard including two sections, each section being secured to the juncture of one of the pivotable members and its respective elongated nose; wherein each of said guard sections is planar, of the general configuration of a quadrant of a circle, and extends substantially parallel to its respective pivotable member, such that when the pair of pivotable members are in their closed positions, the two guard sections together define a substantially semi-circular guard with the diametrical straight edge substantially aligned with the elongated noses, and with the curved edge below the elongated noses.
Claim 6
Dependent Claim
47 words
The instrument according to claim 3 wherein said recesses formed at the inner confronting faces of the two elongated noses are of a diameter of about 1.5 mm for accommodating a wire of about 1.0 mm diameter inserted into the opening in the trachea of the subject.
Claim 7
Dependent Claim
29 words
The instrument according to claim 3 in which said elongated nose at the opposite end extends 20-30 mm at an angle of 90°-135° laterally to its respective pivotable member.
References Cited (Backward Citations)
US2629568A
Cited
US4643188A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-12-25 | 1993-06-26 | 1993-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-12-25 | 1997-06-26 | 1997-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-12-25 | 2001-06-26 | 2001-12-26 | $7700.00 | Window Closed / Lapsed |