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US4943293A Expired / Lapsed US ⏱️ 0.0 years remaining

Surgical pin site shield

Assignee: ENGINEERING & PRECISION MACHINING Inc 234 EAST STREET MEMPHIS TENNESSEE 38126 A CORP OF TENNESSEE
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Filing: 1989-09-21
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Granted: 1990-07-24
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Expires: 2009-09-21
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Abstract

Abstract A pin site shield is described for covering the entry or exit site of a surgical pin such as a halo pin, external fixation pin, traction pin, or surgical wire. The pin site shield comprises a collar having a slot for receipt of the surgical pin, a surgical sponge attached to the collar, and means for securing the pin in the slot. The surgical sponge includes a foam pad and a tricot material attached to the foam pad on the side remote from the collar. The surgical sponge has a slit in substantial registration with the slot in the collar, allowing the surgical pin to pass inwardly and outwardly within the slot. Preferably, the collar includes a tapped hole passing through a top side of the slot, and a screw inserted into the tapped hole secures the pin in the slot. The collar also preferably includes a nib on the bottom side of the slot for further assistance in securing the pin in the slot. Typically the tapped hole will form an acute angle with the slot for entrapment of a range of sizes of surgical pins, from traction pins to surgical wires, in the corner of the slot.

Inventors

  • 👤 Harry E. Lee, Jr.

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 15:18
CPC Classifications
A; A61; A61M; A61M39/00; A61M39/02; A61M39/0247; A61B; A61B17/00; A61B17/56; A61B17/58; A61B17/60; A61B17/68; A61B17/685; A61F; A61F13/00; A61F13/04; A61F13/041; A61F13/15; A61F13/36

Claims Analysis

Total Claims: 10
Claim 1
Independent Claim 105 words
A pin site shield for attachment to a surgical pin, comprising: (a) a collar having a slot for receipt of the surgical pin; (b) a surgical sponge attached to said collar, said surgical sponge comprising a foam pad having a side adjacent to said collar and a side remote from said collar, and a tricot material attached to said foam pad on said side remote from said collar, said surgical sponge having a slit in substantial registration with said slot in said collar, allowing the surgical pin to pass inwardly and outwardly within said slot; and, (c) means for securing the pin in said slot.
Claim 2
Dependent Claim 105 words
A pin site shield for attachment to a surgical pin, comprising: (a) a collar having a slot for receipt of the surgical pin; (b) a surgical sponge attached to said collar, said surgical sponge comprising a foam pad having a side adjacent to said collar and a side remote from said collar, and a tricot material attached to said foam pad on said side remote from said collar, said surgical sponge having a slit in substantial registration with said slot in said collar, allowing the surgical pin to pass inwardly and outwardly within said slot; and, (c) means for securing the pin in said slot.
Claim 3
Dependent Claim 56 words
A pin site shield as described in claim 1, wherein said slot further includes a top side and a bottom side, and said collar further includes a tapped hole passing through said top side of said slot, and wherein said means for securing the pin in said slot comprises a screw inserted into said tapped hole.
Claim 4
Dependent Claim 46 words
A pin site shield as described in claim 2, wherein said slot further comprises a corner adjacent to said bottom side, and wherein said tapped hole forms an acute angle with respect to said slot for entrapment of the pin in said corner of said slot.
Claim 5
Dependent Claim 33 words
A pin site shield as described in claim 2 or claim 3, wherein said means for securing the pin in said slot further comprises a nib on said bottom side of said slot.
Claim 6
Dependent Claim 18 words
A pin site shield as described in claim 1, wherein said foam pad is constructed from reticulated polyurethane.
Claim 7
Dependent Claim 25 words
A pin site shield as described in claim 5, wherein said tricot material has been attached by means of heat bonding to said foam pad.
Claim 8
Dependent Claim 56 words
A pin site shield as described in claim 6, wherein said slot further includes a top side and a bottom side, and said collar further includes a tapped hole passing through said top side of said slot, and wherein said means for securing the pin in said slot comprises a screw inserted into said tapped hole.
Claim 9
Dependent Claim 30 words
A pin site shield as described in claim 7, wherein said means for securing the pin in said slot further comprises a nib on said bottom side of said slot.
Claim 10
Dependent Claim 49 words
A pin site shield as described in claim 7 or claim 8, wherein said slot further comprises a corner adjacent to said bottom side, and wherein said tapped hole forms an acute angle with respect to said slot for entrapment of the pin in said corner of said slot.

References Cited (Backward Citations)

US679918A Cited
GB190203090A Cited
US3782377A Cited
US4399816A Cited
US4641641A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1993-07-23 1994-01-22 1994-07-24 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1997-07-23 1998-01-22 1998-07-24 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2001-07-23 2002-01-22 2002-07-24 $7700.00 Window Closed / Lapsed

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