U.S. patent number 3,807,405 [Application Number 05/106,214] was granted by the patent office on 1974-04-30 for mole remover.
Invention is credited to Benjamin W. Niebel.
United States Patent |
3,807,405 |
Niebel |
April 30, 1974 |
MOLE REMOVER
Abstract
This mole remover is comprised of a plunger shaft with a
machined rack at one end that actuates a gear to whose spindles are
attached to a thin U-shaped razor-like blade. The plunger shaft is
assembled with a spring loaded collar inside a tube designed to be
conveniently held by the hand. Connected to the tube is an
adjusting sleeve capable of being raised or lowered along the
central axis of the tube. The positioning of the sleeve permits the
determination of the depth of the incision made by the razor-like
blade. Every human has 20 to 30 moles, several of which frequently
are preferably removed. Surgical removal is recommended today in
order to permit a subsequent biopsy of the offending tissue. To
remove a mole by means of excision with a scalpel does not permit a
proper cosmetic result because the knife is linear and the mole is
generally round. The resulting wound is a ragged edged, four sided
diamond overcut with a wedged gorge.
Inventors: |
Niebel; Benjamin W. (State
College, PA) |
Family
ID: |
22310156 |
Appl.
No.: |
05/106,214 |
Filed: |
January 13, 1971 |
Current U.S.
Class: |
606/131; 30/293;
30/272.1 |
Current CPC
Class: |
A61B
17/32053 (20130101); A61B 2017/00761 (20130101) |
Current International
Class: |
A61B
17/32 (20060101); A61b 017/32 (); B26b
027/00 () |
Field of
Search: |
;30/272,273,283,293
;128/305,2 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Pace; Channing L.
Attorney, Agent or Firm: Sterling; Thomas E.
Claims
I claim:
1. A surgical instrument for the excision of various sized moles
from the surface of the skin, having a remotely activated blade,
and an adjustable sleeve for varying the distance of the blade from
the skin to change the depth of cut, comprising in combination:
A support tube;
A plunger centrally positioned in said support tube so as to slide
axially therein, a stem attached to one end portion of said plunger
and extending without said support tube;
A rack having teeth thereon attached to the other end portion of
said plunger within said support tube and adapted to slide axially
therein;
A drive gear, having teeth thereon, rotatably attached within said
support tube adjacent to the teeth of said rack;
Whereby, axial movement of said rack produces engagement of the
teeth thereon with the teeth of said drive gear and the rotation of
said drive gear;
A spring within said support tube adapted to bear axially against
said plunger to bias said plunger away from said drive gear;
A single semi-cylindrical blade, the two end portions of which are
attached to opposite sides of said drive gear and rotatable
therewith about a single axis;
An adjustable sleeve adapted to contact the skin, screwably
attached to said support tube and axially adjustable thereon,
adapted to permit the adjustment of the distance of said sleeve
from the skin to produce varying depths of cuts into the skin;
Whereby, by placing said adjustable sleeve upon the skin in the
proximity of a mole, and pressing said plunger, said rack will
rotate said driving gear and said semi-cylindrical blade to excise
said mole from the skin.
2. The combination as claimed in claim 1 in which said adjustable
sleeve is comprised of, in combination:
An internally threaded collar in threaded engagement with threads
circumferentially positioned on said support tube;
Arms attached to said internally threaded collar and extending
radially outwardly therefrom;
A spacing member adapted to contact the skin attached to said
arms:
Whereby said adjustable sleeve may be moved axially along said
support tube allowing adjustment of the distance between the bottom
of said adjustable sleeve, contacting the skin, and the extended
end of said semi-cylindrical blade, to produce an adjustment of
depth of cuts of said blade into the skin.
3. The combination as claimed in 2 in which said rotable attachment
of said drive gear within said support tube is comprised of, in
combination:
The end portion of said support tube having two J-shaped slots
there through diagonally positioned from another, adapted to
receive said drive gear in a rotatable relationship;
A retaining latch slideably positioned on the end portion of said
support tube adjacent to one of said J-shaped slots and adapted to
slide against said drive gear when it is positioned in said
J-shaped slots securing said drive gear therein.
4. The combination as claimed in claim 3 in which said drive gear
has screw means axially positioned on the end portions thereof;
said screw means being adapted to receive the two end portions of
the semi-cylindrical blade, thus retaining said blade to said drive
gear.
5. The combination as claimed in claim 4 in which said
semi-cylindrical blade sweeps an arc of about 180.degree..
6. The combination as claimed in claim 5 in which said blade is
semi-elliptical in shape.
Description
The present invention relates to a novel method for rapid incision
and excision of various diameter moles. A perfect elliptical
incision is guaranteed because the cutting blade is elliptically
shaped, thus facilitating a perfect approximation of skin and of
adequate depth to assure non-seeding of potentially malignant
tissue.
The primary object of the mole remover is to provide a means for
the rapid excision of moles at a sufficient depth so as to prevent
seeding of those that are malignant and yet minimize the cutting
and have the cutting in such geometrical form to assure optimum
cosmetic results upon healing. A second objective of the invention
is to provide a means for a more rapid, less painful operation.
Only local anesthesia is necessary because of the sharpness of the
thin razor-like blade and because of the rapidity of the cut. In
view of the symmetrical cut, simple skin clips will adequately
close the wound for subsequent rapid healing.
Based upon the size of the mole to be excised, the correct size
razor-like blade is selected and assembled to the drive gear. The
drive gear assembly is then locked into position in the tube
assembly. After the desired depth of cut is determined, the
adjusting sleeve is raised or lowered as the case may be to the
desired position. The tube is now centered over the mole to be
removed by viewing along the outside diameter of the tube and
through the inside of the adjusting sleeve. The spring loaded
plunger is depressed which causes the razor-like blade to swing
through an arc with the resulting excision of the disturbing
tissue.
FIG. 1 provides a plan view of the mole remover assembly being
placed on the wrist of a patient preparatory to removal of a
mole.
FIG. 2 is a cross section view of the mole remover assembly without
the gear driven razor-like blade attached.
FIG. 3 is a plan view of the gear drive and attaching razor-like
blade of which two different sizes and contours are shown along
with a representation of typical cuts that can be made.
Referring more particularly to the drawings, in FIG. 2, 1
illustrates a plunger shaft with a machined rack at the extended
end and threaded at a section to permit the attachment of a spring
retaining collar 4. A spring, 5, is assembled between a bearing, 6,
and said retaining collar, 4. The plunger shaft, 1, is assembled
inside a tube, 3, to which is attached a cap, 2, at one end, and an
adjusting sleeve, 9, at the other end. Said adjusting sleeve, 9, is
comprised of an internally threaded collar, 7, to which is
assembled attaching arms, 8, that support the collar to said
adjusting sleeve, 9. Said adjusting sleeve, 9, is capable of being
moved along the central axis of tube 3 by means of turning the
assembly on the threaded portion of tube 3.
Two J-shaped slots extend through the end portion of tube 3
adjacent to adjusting sleeve 9. A drive gear 12 (FIG. 3) is
positioned in this J-shaped slot with the drive gear 12 engaging
the machined rack at the end portion of plunger shaft 1. A
retaining lock 10 is attached to tube 3 adjacent to drive gear 12.
Retaining lock 10 may be moved vertically to bear against drive
gear 12 and held it in position. A U-shaped blade 13 (or 14) is
attached to the end portion of drive gear 12 by means of retaining
screws 11.
In operation, the adjusting sleeve 9 is adjusted to the proper
vertical position by turning on threaded portion of tube 3. A blade
13 is attached to the end portion of drive gear 12 by retaining
screws 11. The tube 3 is then positioned above the mole to be
removed with adjusting sleeve 9 bearing against the skin.
Plunger shaft is then pressed downwardly, causing the machine rack
to rotate drive gear 12 and attached blade 13. Blade 13 rotates
about 180.degree., penetrates the skin making an elliptical shaped
cut therethrough and excising the mole.
* * * * *