US3301254A - Surgical pad - Google Patents
Surgical pad Download PDFInfo
- Publication number
- US3301254A US3301254A US411811A US41181164A US3301254A US 3301254 A US3301254 A US 3301254A US 411811 A US411811 A US 411811A US 41181164 A US41181164 A US 41181164A US 3301254 A US3301254 A US 3301254A
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- United States
- Prior art keywords
- pad
- surgical
- layer
- edge
- compacted
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000000463 material Substances 0.000 claims description 30
- 239000000853 adhesive Substances 0.000 claims description 6
- 230000001070 adhesive effect Effects 0.000 claims description 6
- 238000005520 cutting process Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 238000004080 punching Methods 0.000 description 4
- 229920005830 Polyurethane Foam Polymers 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000001413 cellular effect Effects 0.000 description 3
- 229920001971 elastomer Polymers 0.000 description 3
- 238000005755 formation reaction Methods 0.000 description 3
- 239000011496 polyurethane foam Substances 0.000 description 3
- 206010006585 Bunion Diseases 0.000 description 2
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 2
- 241000209149 Zea Species 0.000 description 2
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 2
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 2
- 235000005822 corn Nutrition 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 208000003643 Callosities Diseases 0.000 description 1
- 206010020649 Hyperkeratosis Diseases 0.000 description 1
- 239000004820 Pressure-sensitive adhesive Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000006261 foam material Substances 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/06—Bandages or dressings; Absorbent pads specially adapted for feet or legs; Corn-pads; Corn-rings
- A61F13/063—Corn-pads; Corn-rings
Definitions
- This application relates to improvements in a surgical pad, and more particularly to a surgical pad of the type that is adhesively attached to the body of a user for the relief of corns, callouses, bunions, and other injuries and afiiictions, although the invention may have other uses and purposes as will be apparent to one skilled in the art.
- Another object of this invention is the provision of a surgical pad as mentioned above, which affords a wide selection of cushioning material that may be utilized, and if the pad has an affliction receiving opening therethrough the upper edge around that opening may also be smoothly arcuate.
- FIGURE 1 is a transverse vertical sectional view.
- FIGURE 2 is a vertical sectional view, with the upper portion shown in elevation, of a punch die capable of forming surgical pads from a material of FIGURE 1;
- FIGURE 3 is a central vertical sectional view, enlarged, through a surgical pad made by the punch of FIGURE 2;
- FIGURE 4 is an enlarged plan view of the surgical pad of FIGURE 3.
- surgical pads may be made under the instant invention, round, oval, ovate or heart-shaped, and in various other configurations as may be desired it being a simple expedient to shape the die accordingly in accordance with a predetermined pad contour.
- a surgical pad from at least two layers of material, the upper layer consisting of a material which may be permanently compacted by pressure so that it can be substantially welded with itself in the cold state, and the material used for the lower layer is a material which can be satisfactorily punched and provides a smooth punched surface, but which although it is compacted during the punching step has restorative power to assume its original size when pressure is relieved.
- FIGURE 1 I have illustrated an upper layer 1 of permanently compactible material, which layer originally is of substantially uniform thickness throughout.
- This material may satisfactorily be under cross-linked polyurethane foam which is cellular in character, such as a light polyurethane foam material having a bulk density below approximately 20 kilogram per cubic meter, al through under-vulcanized sponge rubber or a foam plastic material impregnated with adhesive or other holding compound might also be used, if so desired.
- These ma terials are mentioned by way of example, and not by way of limitation.
- Beneath the layer 1 is a base layer 2 of material that is compressible but which will restore itself when pressure is relieved to its original thickness.
- the material for this layer may satisfactorily be fully crosslinked polyurethane foam plastic material, the bulk density of which is desirably over 20 kilogram per cubic meter and which is also cellular, or, if so desired, fully vulcanized cellular or sponge rubber, felt, or other suitable materials may be used. These two layers may be combined to form a laminated stock blank or sheet by adhesion, vulcanization in some cases, or any similar satisfactory bonding operation.
- the lower layer 2 is preferably provided on its underface with a spread 3 of pressure sensitive adhesive protected by a facing strip 4 having a release surface thereon until time for usage, whereupon the facing sheet 4 is removed and discarded.
- a die such as shown in FIGURE 2 is utilized.
- Such a die may be mounted in any suitable form of known punch press, and may be reciprocated to successively punch surgical pads out of the laminated structure, a single punching operation being all that is needed for the full forming of one surgical pad.
- the punch die is provided with a head 5 mounted upon any suitable form of shank 5a, the head having a central aperture 6 therethrough in the event there is to be an affiiction receiving opening in the resultant pad.
- the underface of the die is milled out or otherwise formed to provide an indentation or annular groove 7 so shaped as to define a sharp interior cutting edge 8 for providing the afliiction receiving opening in the pad, and an outer sharp cutting edge 9 for cutting out the bounding edge of the pad from the laminated stock structure.
- the groove 7 in the die is formed with an upwardly and inwardly arched or arcuate portion 7a on the outer side thereof, and an upwardly and outwardly arcuate portion 7b of lesser radius on the inner side to provide resultant arcuate formations on the pad.
- a pressure shoulder 10 is also provided which tightly compresses a portion of the upper layer outside the arcuate formation 7a which provides a compressed margin on the resultant pad.
- both the layers 1 and 2 are compressed, and the pressure shoulder tightly compresses the upper layer as well as the lower to provide an annular flattened shoulder 11 on the resultant pad seen in FIG- URES 3 and 4.
- the arcuate formations of the groove at 7a provides an outer rounded edge of the upper layer, indicated at 12, and there is a lesser rounded upper edge 12a at the top of the afiliction receiving opening 13 eX- tending through the pad. Since the upper layer 1 is of permanently compactible material, that layer will remain in the shape seen in FIGURES 3 and 4 throughout the life of the pad. Of course, during the cutting and forming operation, the lower layer of the pad is compressed but when the die is lifted, this layer assumes its original thickness.
- a surgical pad may be readily provided which has a smooth rounded upper edge, and this pad may have an under layer of substantially any desirable cushioning material, the resultant pad being highly durable, capable of remaining in position on the body for a considerable length of time regardless of the donning and removal of articles of apparel, and the pad itself and the entire operation of making it is extremely economical.
- a porous, air permeable coating providing an excellent surface for sliding apparel thereover may be applied to the upper layer of the pad, for example, by spraying on an extremely finely distributed solution of polyvinyl chloride in tetrahydrofuran, or an equivalent substance. This can be done before or after the pad is severed, but is preferably done before, since it is easier to spray any such material upon a layer having a smooth upper surface such as the layer 1 prior to the cutting of pads.
- a surgical pad comprising:
- said upper layer having a compacted curvate edge at the upper end of said opening
- adhesive means on the underface of said lower layer to secure the pad to the body of a user.
- a surgical pad comprising:
- said upper layer having a self-sustaining permanently compacted curvate upper bounding edge.
- a surgical pad comprising:
- said upper layer having a compacted curvate upper bounding edge
- said upper layer having a compacted curvate upper edge around said opening.
- a surgical pad comprising:
- the upper portion of said body being permanently compacted to define a self-sustaining smoothly curvate bounding edge.
Landscapes
- Health & Medical Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Materials For Medical Uses (AREA)
- Laminated Bodies (AREA)
Description
Jan. 31, 1967 E. SCHICKEDANZ 3,301,254
SURGICAL PAD Filed Nov. 17, 1964 INVENTOR.
m I ATTORNEYS United States Patent 3,301,254 SURGICAL PAD Erich Schickeudanz, Illereichen-Altenstadt, Germany, as-
signor to Fir-ma Scholl-Werke G.m.b.H., Frankfurt am Main, Germany Filed Nov. 17, 1964, Ser. No. 411,811
Claims priority, application Germany, Nov. 22, 1963,
Sch 34,206
4 Claims. (Cl. 128-153) The apparatus for and method of making the instant invention is more fully set forth and claimed in my copending divisional application filed May 9, 1966, Serial No. 548,714.
This application relates to improvements in a surgical pad, and more particularly to a surgical pad of the type that is adhesively attached to the body of a user for the relief of corns, callouses, bunions, and other injuries and afiiictions, although the invention may have other uses and purposes as will be apparent to one skilled in the art.
Heretofore, surgical pads such as corn, callous, bunion pads and the like have often been made by punching the pad, with the aid of a punch die of suitable shape, out of a sheet or slab of felt, thermosetting or thermoplastic foam material, sponge rubber, and other satisfactory cushioning material. While a simple form of die was used for this purpose, the resultant pad had a sharp upper bounding edge with a straight side wall leading downwardly therefrom. Consequently such pads were subject to the disadvantage that when placed on the body they were likely to become dislodged due to the pulling up of hosiery thereover which would snag on the edge of the pad, and therefore the pad would be misplaced before it had been properly put to use. Endeavors have been made to overcome that disadvantage by means of which the sharp upper edge of a pad or ring could be beveled by using a suitable cutting tool in a separate working step. Such procedure required the use of material stiff enough to respond to a beveling operation, and was extremely costly, since each pad required individual machining. Other attempts were made to eliminate sharp upper edges on,
pads by the electronic heat sealing process, but such heat sealing prohibits the use of certain material and the essential apparatus and method is not available to many.
Accordingly, it is an object of this invention to provide a surgical pad which can be formed in a simple and single punching operation and which is provided with an outer upper edge that is not square but smoothly curvate.
Another object of this invention is the provision of a surgical pad as mentioned above, which affords a wide selection of cushioning material that may be utilized, and if the pad has an affliction receiving opening therethrough the upper edge around that opening may also be smoothly arcuate.
While some of the more salient features, characteristics and advantages of the instant invention have been above pointed out, others will become apparent from the following disclosures, taken in conjunction with the accompanying drawing, in which:
FIGURE 1 is a transverse vertical sectional view.
through superposed layers of material from which surgical pads may be punched out;
FIGURE 2 is a vertical sectional view, with the upper portion shown in elevation, of a punch die capable of forming surgical pads from a material of FIGURE 1;
FIGURE 3 is a central vertical sectional view, enlarged, through a surgical pad made by the punch of FIGURE 2; and
FIGURE 4 is an enlarged plan view of the surgical pad of FIGURE 3.
ice
As shown on the drawings:
It will be apparent to those skilled in the art that surgical pads may be made under the instant invention, round, oval, ovate or heart-shaped, and in various other configurations as may be desired it being a simple expedient to shape the die accordingly in accordance with a predetermined pad contour.
According to this invention, it is preferable to make a surgical pad from at least two layers of material, the upper layer consisting of a material which may be permanently compacted by pressure so that it can be substantially welded with itself in the cold state, and the material used for the lower layer is a material which can be satisfactorily punched and provides a smooth punched surface, but which although it is compacted during the punching step has restorative power to assume its original size when pressure is relieved.
In FIGURE 1, I have illustrated an upper layer 1 of permanently compactible material, which layer originally is of substantially uniform thickness throughout. This material may satisfactorily be under cross-linked polyurethane foam which is cellular in character, such as a light polyurethane foam material having a bulk density below approximately 20 kilogram per cubic meter, al through under-vulcanized sponge rubber or a foam plastic material impregnated with adhesive or other holding compound might also be used, if so desired. These ma terials are mentioned by way of example, and not by way of limitation.
Beneath the layer 1 is a base layer 2 of material that is compressible but which will restore itself when pressure is relieved to its original thickness. The material for this layer may satisfactorily be fully crosslinked polyurethane foam plastic material, the bulk density of which is desirably over 20 kilogram per cubic meter and which is also cellular, or, if so desired, fully vulcanized cellular or sponge rubber, felt, or other suitable materials may be used. These two layers may be combined to form a laminated stock blank or sheet by adhesion, vulcanization in some cases, or any similar satisfactory bonding operation.
The lower layer 2 is preferably provided on its underface with a spread 3 of pressure sensitive adhesive protected by a facing strip 4 having a release surface thereon until time for usage, whereupon the facing sheet 4 is removed and discarded.
To form pads from the laminated structure of FIGURE 1 which may be of indefinite size, a die such as shown in FIGURE 2 is utilized. Such a die may be mounted in any suitable form of known punch press, and may be reciprocated to successively punch surgical pads out of the laminated structure, a single punching operation being all that is needed for the full forming of one surgical pad.
The punch die is provided with a head 5 mounted upon any suitable form of shank 5a, the head having a central aperture 6 therethrough in the event there is to be an affiiction receiving opening in the resultant pad. The underface of the die is milled out or otherwise formed to provide an indentation or annular groove 7 so shaped as to define a sharp interior cutting edge 8 for providing the afliiction receiving opening in the pad, and an outer sharp cutting edge 9 for cutting out the bounding edge of the pad from the laminated stock structure. As best seen in FIGURE 2, the groove 7 in the die is formed with an upwardly and inwardly arched or arcuate portion 7a on the outer side thereof, and an upwardly and outwardly arcuate portion 7b of lesser radius on the inner side to provide resultant arcuate formations on the pad. In the groove, a pressure shoulder 10 is also provided which tightly compresses a portion of the upper layer outside the arcuate formation 7a which provides a compressed margin on the resultant pad.
In the process of making a pad, it is a simple expedient to bring down the cutting and shaping die upon and through the laminated stock of FIGURE 1, the die being so controlled that it does not injure any base plate upon which the stock is laid, and the adhesive and facing sheet may already be upon the stock when the pad is cut. Each time the die descends a pad is formed and severed from waste stock.
As the die descends, both the layers 1 and 2 are compressed, and the pressure shoulder tightly compresses the upper layer as well as the lower to provide an annular flattened shoulder 11 on the resultant pad seen in FIG- URES 3 and 4. The arcuate formations of the groove at 7a provides an outer rounded edge of the upper layer, indicated at 12, and there is a lesser rounded upper edge 12a at the top of the afiliction receiving opening 13 eX- tending through the pad. Since the upper layer 1 is of permanently compactible material, that layer will remain in the shape seen in FIGURES 3 and 4 throughout the life of the pad. Of course, during the cutting and forming operation, the lower layer of the pad is compressed but when the die is lifted, this layer assumes its original thickness.
Thus, it will be seen that a surgical pad may be readily provided which has a smooth rounded upper edge, and this pad may have an under layer of substantially any desirable cushioning material, the resultant pad being highly durable, capable of remaining in position on the body for a considerable length of time regardless of the donning and removal of articles of apparel, and the pad itself and the entire operation of making it is extremely economical. Further, if so desired, a porous, air permeable coating providing an excellent surface for sliding apparel thereover may be applied to the upper layer of the pad, for example, by spraying on an extremely finely distributed solution of polyvinyl chloride in tetrahydrofuran, or an equivalent substance. This can be done before or after the pad is severed, but is preferably done before, since it is easier to spray any such material upon a layer having a smooth upper surface such as the layer 1 prior to the cutting of pads.
It will be understood that modifications and variations may be effected without departing from the scope of the novel concepts of the present invention.
I claim as my invention:
1. A surgical pad comprising:
a lower layer of cushioning material,
an upper layer of permanently compactible material compacted to provide an outer thin margin and a smoothly curvate upper edge,
said pad having an afiliction receiving opening therein,
said upper layer having a compacted curvate edge at the upper end of said opening, and
adhesive means on the underface of said lower layer to secure the pad to the body of a user.
2. A surgical pad comprising:
a lower layer of cushioning material having restorative power upon release of pressure and carrying an adhesive spead on its undersurface, and
an upper layer of cushioning material of the character that is permanently compactible under heavy pressure, and
said upper layer having a self-sustaining permanently compacted curvate upper bounding edge.
3. A surgical pad comprising:
a lower layer of cushioning material carrying an adhesive spread on its undersurfaoe,
an upper layer of cushioning material of the character that is permanently compactible under heavy pressure,
said upper layer having a compacted curvate upper bounding edge,
said pad having an afiliction receiving opening therein,
and
said upper layer having a compacted curvate upper edge around said opening.
4. A surgical pad comprising:
a body part of cushioning material of the character that may be permanently compacted under heavy pressure, and
the upper portion of said body being permanently compacted to define a self-sustaining smoothly curvate bounding edge.
References Cited by the Examiner UNITED STATES PATENTS 2,454,535 11/1948 Warner 128-481 2,706,476 4/1955 Diamond 128132 2,745,128 5/1956 Zeuner 128-153 X 3,063,448 11/1962 Scholl 128-153 ADELE M. EAGER, Primary Examiner.
Claims (1)
1. A SURGICAL PAD COMPRISING: A LOWER LAYER OF CUSHIONING MATERIAL, AN UPPER LAYER OF PERMANENTLY COMPACTIBLE MATERIAL COMPACTED TO PROVIDE AN OUTER THIN MARGIN AND A SMOOTHLY CURVATE UPPER EDGE, SAID PAD HAVING AN AFFLICTION RECEIVING OPENING THEREIN, SAID UPPER LAYER HAVING A COMPACTED CURVATE EDGE AT THE UPPER END OF SAID OPENING, AND ADHESIVE MEANS ON THE UNDERFACE OF SAID LOWER LAYER TO SECURE THE PAD TO THE BODY OF A USER.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US548714A US3499813A (en) | 1964-11-17 | 1966-05-09 | Method of making surgical pads |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DESCH34206A DE1223991B (en) | 1963-11-22 | 1963-11-22 | Method and device for the production of protective rings with a rounded upper edge for pressure-sensitive areas, such as chicken eyes, skin cornifications and the like. like |
Publications (1)
Publication Number | Publication Date |
---|---|
US3301254A true US3301254A (en) | 1967-01-31 |
Family
ID=7433059
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US411811A Expired - Lifetime US3301254A (en) | 1963-11-22 | 1964-11-17 | Surgical pad |
Country Status (4)
Country | Link |
---|---|
US (1) | US3301254A (en) |
CH (1) | CH456035A (en) |
DE (1) | DE1223991B (en) |
GB (1) | GB1026737A (en) |
Cited By (68)
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US3694845A (en) * | 1970-10-14 | 1972-10-03 | Horizon Ind Ltd | Cleansing device for surgical scrubs |
US4411622A (en) * | 1981-10-09 | 1983-10-25 | Hansen Gorm P | Jaw hinge-axis locator |
US5092347A (en) * | 1990-03-19 | 1992-03-03 | Shaffer David E | Personalized sock kit for relieving foot and ankle pain |
US5743256A (en) * | 1996-03-07 | 1998-04-28 | Jalowayski; Alfredo A. | Nostril closure means |
US5798062A (en) * | 1994-06-23 | 1998-08-25 | Thielbar; Janice Marie | Method of making a custom formed natural fit artificial breast appliance |
US6039629A (en) * | 1999-05-06 | 2000-03-21 | Mitchell; Julia | Nursing pad |
US6074421A (en) * | 1997-04-05 | 2000-06-13 | Medisyn Technology, Ltd. | Seamless breast prosthesis |
US6241715B1 (en) | 1999-09-29 | 2001-06-05 | Reid D. Houser | Disposable therapeutic breast pad |
US6253951B1 (en) * | 1998-04-07 | 2001-07-03 | Robert M. Pruckler | Apparatus and system for covering and protecting the rim of a paint can |
US6338665B1 (en) * | 2000-11-03 | 2002-01-15 | Sammie L. Dawson | Protective breast covering assembly |
US20020077611A1 (en) * | 1998-02-25 | 2002-06-20 | Von Dyck Peter M. | Pad for use with continent ostomy port |
US6419548B1 (en) | 2000-09-27 | 2002-07-16 | Ome Llc | Bra shield, brassiere and method |
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US11425941B1 (en) * | 2019-11-08 | 2022-08-30 | MaryMac Revisions, LLC | Comfort fit natural breast shaping nipple concealer |
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GB754043A (en) * | 1953-07-02 | 1956-08-01 | Johnson & Johnson | Body protective pads |
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- 1963-11-22 DE DESCH34206A patent/DE1223991B/en active Pending
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1964
- 1964-11-17 US US411811A patent/US3301254A/en not_active Expired - Lifetime
- 1964-11-20 CH CH1501164A patent/CH456035A/en unknown
- 1964-12-19 GB GB47209/64A patent/GB1026737A/en not_active Expired
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US2454535A (en) * | 1947-06-28 | 1948-11-23 | Mary W Warner | Breast shield |
US2745128A (en) * | 1952-05-29 | 1956-05-15 | Zeuner Ann | Combination plastic mitten and sponge rubber washing device |
US2706476A (en) * | 1953-03-23 | 1955-04-19 | Pauline V Diamond | Device for preventing calluses and skin irritations |
US3063448A (en) * | 1958-10-21 | 1962-11-13 | William M Scholl | Surgical pad and method of making the same |
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Also Published As
Publication number | Publication date |
---|---|
GB1026737A (en) | 1966-04-20 |
CH456035A (en) | 1968-05-15 |
DE1223991B (en) | 1966-09-01 |
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