U.S. patent number 3,904,033 [Application Number 05/522,120] was granted by the patent office on 1975-09-09 for pick-guard.
This patent grant is currently assigned to Xomox Corporation. Invention is credited to Raymond H. Haerr.
United States Patent |
3,904,033 |
Haerr |
September 9, 1975 |
Pick-guard
Abstract
An autoclavable pick-guard for shielding the delicate tip of a
medical pick, or the like, comprises a pair of hingedly connected
jaws which are adapted to be securely though releasably clamped
onto the tip-adjacent end of a pick inserted longitudinally of said
jaws.
Inventors: |
Haerr; Raymond H. (Cincinnati,
OH) |
Assignee: |
Xomox Corporation (Cincinnati,
OH)
|
Family
ID: |
24079541 |
Appl.
No.: |
05/522,120 |
Filed: |
November 8, 1974 |
Current U.S.
Class: |
206/349;
30/164.7; 604/263; 30/151; 604/162; 220/835 |
Current CPC
Class: |
A61B
17/34 (20130101); A61B 2090/0801 (20160201) |
Current International
Class: |
A61B
17/34 (20060101); A61B 19/00 (20060101); B26B
029/00 (); B65D 085/54 () |
Field of
Search: |
;30/151,153,164.7,286,296A,368 ;128/214.4,329,346 ;206/349
;220/334,337,339
;24/3A,73AP,73SA,81HH,81TH,132HA,156R,248B,248SL,248L,249R,249SL |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Price; William I.
Assistant Examiner: Lipman; Steven E.
Attorney, Agent or Firm: Kinney, Jr.; J. Warren
Claims
What is claimed is:
1. A one-piece, plastic pick-guard for shielding the tip of a
medical pick or the like, comprising a pair of elongate jaws
integrally hinged together at one of their ends for pivotal
movement between open and closed positions, one of said jaws having
a pair of transversely aligned, laterally spaced upstanding
latches, the other jaw having a pair of transversely aligned,
laterally spaced, latch-receptive openings therethrough, a
transverse latch strike on the said other jaw at one side of and
spanning each of said latch-receptive openings, and a deformable,
resilient pad secured to and carried by said first mentioned jaw,
adjacent and in circumscribing relationship with the lower or
jaw-adjacent ends of the latches, said laterally spaced latches
defining the sides of a longitudinally extending pick-receptive
channel.
2. A device as called for in claim 1, wherein the jaw in which the
latch-receptive openings are located includes an elongate,
centrally disposed through opening which extends longitudinally of
said jaw in spaced relationship with the latch-receptive openings
therethrough and the hinged end thereof, said elongate,
longitudinal opening providing visual access to the contents of the
guard during those periods of time when the jaws are in closed
position.
3. A device as called for in claim 1, wherein the pick-guard and
the deformable, resilient pad are each of a non-pyrogenic,
autoclavable material.
4. A device as called for in claim 1, wherein the deformable,
resilient pad includes a pair of transversely aligned, laterally
spaced, latch-receptive slots therethrough which define a snug,
slip-fit relationship with the lower or jaw-adjacent ends of the
latches, and wherein the said first mentioned jaw includes a cavity
intermediate said latches and in open communication with the
deformable, resilient pad.
5. A device as called for in claim 1, which includes a pair of
transversely aligned, laterally spaced abutments secured to,
carried by and projecting from the free end of the jaw in which the
latch-receptive openings are located, and in longitudinal alignment
with the latches; and a pair of complementary spacers integral with
and forming part of the hinge, wherein the abutments and spacers
define contact points between the jaws when said jaws are in closed
position.
6. A device as called for in claim 1, wherein each of the jaws
includes an elongate, longitudinally extending chamber intermediate
the latches and the hinge and in open communication with the
pick-receptive channel.
7. A device as called for in claim 1, wherein the free end of the
said first mentioned jaw is forward of the free end of the other
jaw.
Description
BACKGROUND OF THE INVENTION
1. Field of the Invention
The subject invention is directed to an autoclavable pick-guard
which readily accommodates and effectively shields the delicate tip
of any of a variety of medical picks or the like and which includes
means for readily and visually ascertaining the configuration of
the shielded tip. The pick-guard is easily and efficiently opened
and/or closed with one hand.
2. Description of the Prior Art
It is known to manufacture an autoclavable, unitary clamp
comprising a pair of jaws which are hingedly secured to one another
and are resiliently maintained in normally open, spaced-apart
relationship, wherein the jaws include an integral latch and
latch-keeper for securely though releasably locking the jaws in
closed relationship for clamping one or more tubes which are
carried by and pass transversely between the jaws, such as
illustraded, by way of example, in the pending application of Gale
W. Miller, et al.; entitled: UNITARY CLAMP; Ser. No. 363,034;
assigned to Cincinnati Bio-Medical, Inc., now U.S. Pat. No.
3,896,527.
SUMMARY OF THE INVENTION
The pick-guard of the present invention differs from the
aforementioned clamp in that the latch and latch-keeper are
designed to permit the delicate tip of a medical pick or the like
to be longitudinally inserted into the space between the normally
open jaws and between a pair of upstanding, laterally spaced
latches for substantially enveloping and effectively shielding the
tip during all phases of handling, including storage and
autoclaving. The pick-guard differs, further, in that one of the
jaws includes a deformable, resilient bearing surface whereby the
pick-guard will readily accommodate, securely grip and effectively
shield any of a variety of medical picks having tips of different
size and/or configuration.
The pick-guard comprises upper and lower elongate jaws secured in
pivotal relationship with one another at one of their ends by an
integral hinge which resiliently urges the jaws into normally open,
spaced-apart relationship. A pair of transversely aligned,
laterally spaced latches are secured to and carried by the lower
jaw and are securely though releasably engageable with a
latch-keeper in the upper jaw for locking the jaws in closed,
pick-gripping relationship, whereby the closed jaws securely grip,
substantially envelop and effectively shield the delicate tip of
the pick.
A resilient pad is disposed in abutting relationship with the upper
surface of the lower jaw in encompassing relationship with the
lower ends of the two latches to define a deformable, resilient
bearing surface for receiving the medical pick, whereby the
pick-guard readily accommodates and securely grips any of a variety
of shapes and sizes of medical picks. One of the jaws includes an
elongate, central opening between the latch members and the pivoted
ends of the jaws for readily and visually disclosing the location
and configuration of the shielded tip.
The latches are transversely aligned, laterally spaced, upstanding,
resilient members which are secured to and project upwardly from
the lower jaw, whereas the latch-keeper comprises a pair of
latch-receptive slots in the upper jaw. A latch-keeper defining lip
at the forward edge of each slot is securely though releasably
engageable with the latches, whereby the latches may be efficiently
and readily engaged with or disengaged from the latch-keeper with
one hand, permitting the other hand to remain free for handling the
medical pick.
The jaws, hinge, latches and latch-keeper comprise a unitary
article of manufacture, whereas the resilient pad is a separate
article which is secured to and carried by the lower jaw. Each of
said articles is manufactured from a non-pyrogenic material which
may be readily subjected to autoclaving, thereby permitting use of
the pick-guard to shield the delicate tip during all phases of
handling.
It is, therefore, an object of the present invention to provide an
autoclavable pick-guard for shielding the delicate tip of a medical
pick or the like during all phases of handling -- including storage
and autoclaving -- wherein the pick-guard will readily accommodate
a variety of medical picks having tips of different size and/or
configuration, wherein the medical pick may be easily and
efficiently removed from the pick-guard, and wherein personnel may
readily and visually ascertain the configuration of the shielded
tip.
Other objects and features of the invention will be readily
apparent from the accompanying drawings and description of the
preferred embodiment.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a side-elevational view of a pick-guard embodying the
teachings of the present invention shown in gripping and shielding
relationship with the tip of a medical pick or the like.
FIG. 2 is a top-elevational view of the pick-guard of FIG. 1.
FIG. 3 is a sectional view taken at line 3--3 of FIG. 2.
FIG. 4 is a sectional view taken at line 4--4 of FIG. 3.
FIG. 5 is a view of the pick-guard with the jaws in normally open,
spaced-apart relationship.
FIG. 6 is a sectional view taken at line 6--6 of FIG. 2.
FIG. 7 is a sectional view taken at line 7--7 of FIG. 2.
FIG. 8 is a fragmentary view similar to FIG. 7, illustrating the
pick-guard in gripping and shielding relationship with the tip of a
second medical pick or the like.
DESCRIPTION OF THE PREFERRED EMBODIMENT
The preferred embodiment of the pick-guard is illustrated in the
drawings and is designated, in general, by the reference numeral
10. The pick-guard comprises upper and lower elongate jaws 14,16
which have forward ends 18-19 and rearward ends 20-21,
respectively. The jaws are hingedly secured to one another by
resilient hinge 22 which is integral with and forms part of
rearward ends 20-21. The hinge resiliently urges and normally
maintains forward ends 18-19 in open, spaced-apart relationship
(FIG. 5).
A pair of transversely aligned, laterally spaced latches 36 are
formed integral with and project upwardly from lower jaw 16. The
latches securely though releasably engage a latch-keeper 25 in jaw
14 for releasably locking forward ends 18-19 in closed
juxtaposition, whereby the jaws will securely grip the peripheral
surface of a longitudinally inserted medical pick 12 or the like at
27 for substantially enveloping and effectively shielding the
sharpened and/or pointed tip 26 thereof (FIGS. 1 and 2). It will be
noted that gripped portion 27 of the medical pick is disposed
rearwardly of tip 26, whereby the delicate tip remains free and
clear of the pick-guard.
Resilient pad 32 is seated in abutting relationship with the upper
surface 34 of jaw 16 and provides a readily deformable, resilient
bearing surface engageable by the medical pick, whereby the
pick-guard readily accommodates and securely grips any of a variety
of picks at 27 and 127, effectively shielding tips of different
size and/or configuration without resulting in deformation of jaws
14 and 16 (FIGS. 7 and 8). Upper jaw 14 includes an elongate window
or opening 64 for visually ascertaining the location and
configuration of the shield tip.
Jaws 14 and 16, hinge 22, latches 36 and latch-keeper 25 comprise
an integral, unitary article of non-pyrogenic material which may be
readily subjected to autoclaving, such as, by way of example,
polypropylene or the like. Preferably, the material is naturally
resilient, whereby resilient hinge 22 is generated by manufacturing
the pick-guard in a unitary mold with jaws 14 and 16 disposed in
coplanar, longitudinally aligned relationship.
Pad 32 comprises an article of readily deformable, resilient,
non-pyrogenic material which may be readily subjected to
autoclaving, such as silicone rubber or the like.
The latches of the preferred embodiment comprise a pair of
transversely spaced, upstanding members 36 which are integral with
and project upwardly from lower jaw 16 (FIGS. 1, 3 and 7).
Latch-keeper 25 comprises a pair of transversely spaced, elongate
slots 42-43 in upper jaw 14 (FIGS. 2 and 7) which are complementary
with, readily accommodate and loosely receive latches 36. Upper jaw
14 includes a transversely extending, upwardly projecting lip or
latch strike 46 which is adjacent to and projects rearwardly from
the forward-most edges of the slots. Each latch 36 includes a
forwardly projecting, latch strike-engaging rib 38 for securely
engaging lip 46 and locking the jaws in closed juxtaposition. The
latches 36 are efficiently and readily disengaged from latch-keeper
25 by cradling the pick-guard 10 in the open palm of one hand and
retracting latches 36 rearwardly with the thumb, thereby
disengaging ribs 38 from latch strike 46 and releasing upper jaw
14. The resilient hinge 22 then urges jaws 14 and 16 into open,
spaced-apart relationship and thereby permits withdrawal of the
shielded tip 26 from the pick-guard by grasping handle 48 of the
pick with the free hand and advancing the pick in the direction of
arrow A (FIG. 5).
Latches 36 are normally resiliently urged toward the forward ends
of the jaws, and will return to the latch-keeper engaging position
when released by the thumb.
With particular reference to FIGS. 4, 7 and 8, it will be noted
that resilient pad 32 includes a pair of transversely spaced,
elongate slots 66,68 complementary with and adapted to receive
latches 36. The slots define a snug, slip-fit relationship with the
lower jaw-adjacent end of the latches, whereby the latches provide
means for maintaining the pad in seated relationship with upper
surface 34 of the jaw. The lower jaw includes cavity 70 which is
disposed directly beneath pad 32. The cavity provides clearance for
the pad when said pad receives a medical pick and is depressed and
deformed thereby when jaws 14 and 16 are closed.
A pair of transversely aligned, laterally spaced abutments 50,52
depend from upper jaw 14 and with latches 36 define an
intermediate, elongate, pick-receptive channel 54 for
longitudinally gudiing the medical pick into the pick-guard. The
latches and abutments provide side walls for channel 54 and ensure
against transverse movement of the medical pick relative to the
pick-guard during handling.
Complementary spacers 56,58 are integral with and form a part of
hinge 22 (FIGS. 1, 3 and 5). The spacers are disposed in abutting
relationship with one another when the jaws are closed, and with
abutments 50, 52 maintain the closed jaws 14 and 16 in
substantially parallel, spaced relationship with one another to
establish clearance for the tip 26.
Jaws 14 and 16 include complementary chambers 60 and 62,
respectively, which provide additional clearance for tip 26. The
elongate opening 64 is disposed in communication with chamber 60
and is in alignment with the longitudinal axis of the
pick-receptive channel 54.
In the preferred form, end 19 of lower jaw 16 is forward of end 18
of upper jaw 14. This arrangement provides three contact points
between the jaws and pick 12, as illustrated at 80, 81 and 82 of
FIG. 3, and ensures a tight, non-slip grip of the pick by the
pick-guard.
* * * * *