← Back to Patent Explorer
US4690139A Expired / Lapsed US ⏱️ 0.0 years remaining

Dermatome particularly useful for skin-grafting purposes

Assignee: Individual
•
Filing: 1986-04-30
•
Granted: 1987-09-01
•
Expires: 2006-04-30
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A dermatome particularly useful for skin-grafting purposes comprises a guard for controlling the cutting depth, and an adjusting mechanism for effecting an angular displacement between the guard and the cutting depth, the guard extending the complete length of the cutting edge of the blade and being rounded at its opposite end enabling the full blade length to be used. The dermatome may be constructed with the guard, or the guard may be included in an accessory for attachment to the dermatome.

Inventors

  • 👤 Lior Rosenberg

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 04:30
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/32; A61B17/322; A61B90/00; A61B90/08; A61B2090/0801; A61B2090/08021

Claims Analysis

Total Claims: 19
Claim 1
Independent Claim 140 words
A dermatome, comprising: a handle; a blade-mounting head for mounting a cutting blade; a guard for controlling the cutting depth; and adjusting means for effecting an angular displacement between aid guard and the blade of the mounting head for varying the cutting depth; said guard being carried by said blade-mounting head so as to be movable therewith during the reciprocation of the blade-mounting head and extending the complete length of the cutting edge of the blade; said guard being rounded at its opposite ends enabling the full blade length to be used during the reciprocation of the head, blade and guard across the skin to be cut by the blade; said blade-mounting head being formed with projections at the ends protecting the corners of the cutting edge of the blade against catching the skin during use of the cutting blade.
Claim 2
Dependent Claim 140 words
A dermatome, comprising: a handle; a blade-mounting head for mounting a cutting blade; a guard for controlling the cutting depth; and adjusting means for effecting an angular displacement between aid guard and the blade of the mounting head for varying the cutting depth; said guard being carried by said blade-mounting head so as to be movable therewith during the reciprocation of the blade-mounting head and extending the complete length of the cutting edge of the blade; said guard being rounded at its opposite ends enabling the full blade length to be used during the reciprocation of the head, blade and guard across the skin to be cut by the blade; said blade-mounting head being formed with projections at the ends protecting the corners of the cutting edge of the blade against catching the skin during use of the cutting blade.
Claim 3
Dependent Claim 18 words
The dermatome according to claim 1, wherein said handle is offset from the plane of the cutting blade.
Claim 4
Dependent Claim 24 words
The dermatome according to claim 1, wherein said blade-mounting head includes maans permitting the blade to be mounted from the underside of the head.
Claim 5
Dependent Claim 54 words
The dermatome according to claim 1, wherein said blade-mounting head comprises a top plate and a base plate hinged to the top plate along the rear side of the blade-mounting head, permitting the base plate to be pivoted to its open position for the insertion of a blade from the underside of the head.
Claim 6
Dependent Claim 21 words
The dermatome according to claim 4, wherein said base plate is formed with pins receivable in holes in the cutting blade.
Claim 7
Dependent Claim 37 words
The dermatome according to claim 5, further including a locking plate slidable laterally over the top plate and formed with bayonet slots for locking the base plate in its closed position with respect to the top plate.
Claim 8
Dependent Claim 29 words
The dermatome according to claim 4, wherein said base plate is formed with a resilient latch releasably engageable with the top plate for latching same in its closed position.
Claim 9
Dependent Claim 42 words
The dermatome according to claim 1, wherein said handle is offset from the plane of the blade-mounting head and is pivoted from a first position overlying said blade-mounting head, to a second position extending laterally of, but offset from, the blade-mounting head.
Claim 10
Dependent Claim 70 words
The dermatome according to claim 1, wherein said adjusting means comprises a pin member and a slotted member receiving said pin member, one of said members being fixed to said blade-mounting head, and the other being fixed to said guard, said adjusting means including means for moving one of said members with respect to the other member to thereby effect said angular displacement between the blade-mounting head and the guard.
Claim 11
Dependent Claim 60 words
The dermatome according to claim 9, wherein said guard is fixed to said handle, and said slotted member is fixed to said blade-mounting head at an angle to said pin member, said pin member being adjustable on said handle to move along said slotted member and thereby to adjust the angle of said blade-mounting head with respect to said guard.
Claim 12
Dependent Claim 21 words
The dermatome according to claim 10, wherein said guard is in the form of a cylindrical rod circumscribing said blade-mounting head.
Claim 13
Dependent Claim 20 words
The dermatome according to claim 11, wherein said blade-mounting head is pivotably mounted at its opposite ends to said guard.
Claim 14
Dependent Claim 54 words
The dermatome according to claim 9, wherein said blade-mounting head is fixed to said handle, and said pin member is fixed to said guard, said slotted member being adjustable on said handle to move said pin member received therein, and thereby to adjust the angle of said blade-mounting head with respect to said guard.
Claim 15
Dependent Claim 152 words
An accessory for attachment to a dermatome including a handle and a blade holder, said accessory comprising a blade-mounting head attachable to said blade holder, and a guard for controlling the cutting depth, said guard being carried by said blade-mounting head so as to be movable therewith and extending the complete length of the cutting edge of the blade, said guard being rounded at its opposite ends enabling the full blade length to be used during the reciprocation of the blade-mounting head, blade and guard across the skin to be cut by the blade; said blade-mounting head being formed with projections at the ends protecting the corners of the cutting edge of the blade against catching the skin during use of the cutting blade; and adjusting means for effecting an angular displacement between said guard and the blade of the dermatome when the accessory is mounted thereon, for varying the cutting depth.
Claim 16
Dependent Claim 152 words
An accessory for attachment to a dermatome including a handle and a blade holder, said accessory comprising a blade-mounting head attachable to said blade holder, and a guard for controlling the cutting depth, said guard being carried by said blade-mounting head so as to be movable therewith and extending the complete length of the cutting edge of the blade, said guard being rounded at its opposite ends enabling the full blade length to be used during the reciprocation of the blade-mounting head, blade and guard across the skin to be cut by the blade; said blade-mounting head being formed with projections at the ends protecting the corners of the cutting edge of the blade against catching the skin during use of the cutting blade; and adjusting means for effecting an angular displacement between said guard and the blade of the dermatome when the accessory is mounted thereon, for varying the cutting depth.
Claim 17
Dependent Claim 23 words
The accessory according to claim 14, wherein said accessory further includes a mounting head for mounting on the cutting blade of the dermatome.
Claim 18
Dependent Claim 16 words
The accessory according to claim 5, wherein said guard is integrally formed with said mounting head.
Claim 19
Dependent Claim 50 words
The accessory according to claim 15, wherein said guard is in the form of a cylindrical rod extending the complete length of the cutting edge of the blade, when the accessory is mounted to said dermatome, said adjusting means angularly displacing said cylindrical rod with respect to said mounting head.

References Cited (Backward Citations)

SU240174A1 Cited
GB641307A Cited
US2579029A Cited
GB680029A Cited
US3221744A Cited
US3428045A Cited
US3613242A Cited
US4270540A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1990-08-31 1991-03-02 1991-09-01 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1994-08-31 1995-03-02 1995-09-01 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1998-08-31 1999-03-02 1999-09-01 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag