US3900024A - Orthopedic cast and method of constructing same - Google Patents
Orthopedic cast and method of constructing same Download PDFInfo
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- US3900024A US3900024A US437522A US43752274A US3900024A US 3900024 A US3900024 A US 3900024A US 437522 A US437522 A US 437522A US 43752274 A US43752274 A US 43752274A US 3900024 A US3900024 A US 3900024A
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- plaster
- sheet
- cast
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- splints
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- 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
- A61F13/04—Plaster of Paris bandages; Other stiffening bandages
Definitions
- An improved plaster cast and method of preparing it are provided by the present invention.
- the cast is formed from a casting blank prepared in a novel manner.
- a first sheet of defonnable, water absorptive material is placed on a supporting surface and a plurality of plaster splints are aligned on the sheet.
- a second sheet of the deformable, water absorptive material is then placed over the first sheet to sandwich the plaster splints between the two sheets.
- the edges of the sheets are then bonded together to enclose the plaster splints within the deformable, water absorptive material to form the casting blank.
- the blank When the blank is to be used to form a cast for a portion of the body, it is first saturated with water then shaped around the body portion. The shaped cast is then wrapped with an adhesive or elastic tape to hold it in place while it dries.
- Plaster casts have been used in the healing arts for many years to immobilize and hold in place a fractured bone. Construction of a plaster cast is a time consuming procedure requiring a high degree of skill. Normal procedure is for the dry plaster ingredients to be impregnated in a gauze cloth to form what is commonly referred to as a plaster splint. After the fractured bone is set in place, and the attendant portion of the body is covered with a soft cloth, a number of the plaster splints are moistened and carefully wrapped around the body portion. A minimum of six and as many as fifteen or twenty splints are utilized to form a multiple layered immobilizing cost.
- lt is therefore a primary object of the present invention to provide an immobilizing orthopedic cast which can be constructed in a fraction of the time as required for a conventional plaster cast and can therefore be utilized on an emergency and temporary basis at the scene of an accident for facilitating transfer of the patient to a medical center.
- lt is still another objective of my invention to provide an orthopedic cast which is easier and quicker to construct than a conventional plaster cast and is also more comfortable for the patient to wear because of the incorporation into the cast as an integral part of a resilient layer of material between the rigid plaster and the patients body.
- Still another object of this invention is to provide a method of constructing a cast for permanently setting a fractured bone that is easier for a doctor to utilize because of the elimination of the multiple steps required in building a multiple layered cast from individual splints.
- lFlG. i is a top plan view with portions broken away of a casting blank constructed according to the present invention for use in the inventive method of constructing a cast;
- H6. 2 is a perspective view illustrating how the casting blank would be placed to form a cast around the ankle and foot;
- FIG. 3 is a side elevational view of the ankle and foot shown in F l6. 2 with the casting blank shaped to conform to the shape of this portion of the body;
- FIG. i is a side elevational view of a portion of the elbow and upper and lower arm of a person encased within a cast constructed according to the teachings of the present invention
- FIG. 5 is a side elevational view, similar to FIG. 4, and illustrating a further step which may be utilized in constructing a cast according to the method of the present invention.
- FIG. 6 is another side view of the arm and elbow shown in FlGS. 4- and 5 with the completed cast therearound.
- the present invention encompasses a novel casting blank 10 and a method of constructing it.
- a first sheet 12 of deformable water absorptive resilient material is placed on a working surface and trimmed to an appropriate size. While a cellular material such as foam rubber or urethane foam is preferred because of its high water absorption and resiliency, it will be appreciated that other equivalent materials which are deformable and water absorptive may be utilized.
- a number. of plaster splints 14 are then placed over sheet 12 in general alignment with the lat ter. Each splint 14 is of a construction well known to those skilled in the art and normally comprises a layer of gauze cloth impregnated with the dry plaster ingredients.
- plaster splint as used in this application is intended to include any plaster-like material which will harden after water has been added, impregnated in a carrier such as the gauze cloth. While it is much preferred to utilize the plaster splints l4, for some applications it is possible to utilize the dry plaster ingredients without the cloth carrier strips.
- the number of plaster splints 14 may also be varied in accordance with the requirements for the particular cast being constructed. For most applications at least six of the splints 14 will be required to give the necessary support and additional splints may be utilized as needed.
- a second sheet 16 of the same water absorptive deformable material as the first sheet 12 is trimmed to the appropriate size and placed over the splints 14 on the first sheet.
- the sheets 12 and 16 are each of a size such that they present a surface area larger than the surface area of the splints 14 so that the edges of the sheets extend beyond the edges of the splints.
- the completed casting blank 10 will thus comprise upper and lower layers of a resilient deformable water absorptive material with a quantity of plaster sandwiched between the two layers. It has been found helpful to provide a centering ring 18 imprinted on the surface of one of the sheets to facilitate centering of a portion of the body such as foot 20 to be enclosed within the cast formed from blank 10.
- the blank 10 is illustrated in FIG. 3 shaped into an elbow cast 24. It will generally be preferred for a cast formed from blank 10 to be wrapped with tape 26 to hold the cast in place while it is drying.
- Tape 26 may be an inelastic adhesive type or may comprise an elastic material commonly referred to as an elastic bandage. The tape remains in place after the plaster cast hardens and provides some additional support for the cast as well as a degree of protection against damage.
- a stockinette 28 may be pulled over the tape 26. Manifestly, stockinette 28 may be easily removed and washed as required.
- a method of constructing a casting blank from which a plaster cast for a portion of the body may be formed comprising: providing a first, outermost sheet of resilient, cellular water absorptive material; deposting at least one plaster splint on said sheet; providing a second outermost sheet of deformable water absorptive material; placing said second sheet in overlying relationship to the plaster on the first sheet; and joining the peripheral edges of said first and second sheets to encase said plaster therewithin.
- said depositing step comprises depositing a plurality of said plaster splints on said first sheet.
- a casting blank for use in forming a plaster cast for a portion of the body comprising:
- said first and second sheets being joined together at their peripheral edges to enclose said plaster material therewithin.
- said layer of plaster material comprises a plurality of plaster splints.
Abstract
An improved plaster cast and method of preparing it are provided by the present invention. The cast is formed from a casting blank prepared in a novel manner. A first sheet of deformable, water absorptive material is placed on a supporting surface and a plurality of plaster splints are aligned on the sheet. A second sheet of the deformable, water absorptive material is then placed over the first sheet to sandwich the plaster splints between the two sheets. The edges of the sheets are then bonded together to enclose the plaster splints within the deformable, water absorptive material to form the casting blank. When the blank is to be used to form a cast for a portion of the body, it is first saturated with water then shaped around the body portion. The shaped cast is then wrapped with an adhesive or elastic tape to hold it in place while it dries.
Description
United States Patent [191 Lauber et al.
1 ORTHOPEDIC CAST AND METHOD OF CONSTRUCTING SAME [76] lnventorsz' Leo E. Lauber, 821 Locust, Eudora,
Kans. 66025; Ernest A. Cowden, 7405 Sloan, Kansas City, Kans. 66109 [22] Filed: Jan. 28, 1974 21 Appl. No.: 437,522
[52] US. Cl 128/91 R [51] Int. Cl. A6lf 5/04 [58] Field of Search 128/91 R, 90
[56] References Cited UNITED STATES PATENTS 797,510 8/1905 Fuhrhans 128/91 R 937,478 10/1909 Sims 128/91 R 1,131,295 3/1915 Touart.... 128/91 R 2,530,986 11/1950 Moses 128/91 R 2,692,596 10/1954 Marconnet. 128/91 R 2,960,984 1l/l960 Parker 128/91 R 3,048,169 8/1962 Pierce 128/90 3,135,258 6/1964 Billings et al. 128/91 R 3,197,534 7/1965 Murray 128/91 R 3,373,741 3/1968 Hill et al. 128/90 4 1 Aug. 19, 1975 3,728,206 4/1973 Buese 128/90 Primary Examiner-Richard A. Gaudet Assistant Examiner.1. Yasko Attorney, Agent, or Firm-Lowe, Kokjer, Kircher, Wharton & Bowman [5 7 ABSTRACT An improved plaster cast and method of preparing it are provided by the present invention. The cast is formed from a casting blank prepared in a novel manner. A first sheet of defonnable, water absorptive material is placed on a supporting surface and a plurality of plaster splints are aligned on the sheet. A second sheet of the deformable, water absorptive material is then placed over the first sheet to sandwich the plaster splints between the two sheets. The edges of the sheets are then bonded together to enclose the plaster splints within the deformable, water absorptive material to form the casting blank. When the blank is to be used to form a cast for a portion of the body, it is first saturated with water then shaped around the body portion. The shaped cast is then wrapped with an adhesive or elastic tape to hold it in place while it dries.
5 Claims, 6 Drawing Figures pmmgmum 91915 Ollt'lfllUlPlElDlC CAST AND METHOD 01E" CONSTRUCTHNG SAME This invention relates generally to orthopedics and more specifically to an improved orthopedic cast and method on constructing same.
Plaster casts have been used in the healing arts for many years to immobilize and hold in place a fractured bone. Construction of a plaster cast is a time consuming procedure requiring a high degree of skill. Normal procedure is for the dry plaster ingredients to be impregnated in a gauze cloth to form what is commonly referred to as a plaster splint. After the fractured bone is set in place, and the attendant portion of the body is covered with a soft cloth, a number of the plaster splints are moistened and carefully wrapped around the body portion. A minimum of six and as many as fifteen or twenty splints are utilized to form a multiple layered immobilizing cost. As each splint must be moistened and then carefully laid over the preceding splint followed by wrapping of the splint around the body portion, this is a very time consuming procedure. The person applying the cast must be very careful to control the amount of moisture applied to the individual splints as too much moisture will weaken the cast and too little moisture will result in non-adherence of the individual splints to each other which also causes a weak spot.
Because of the great amount of time as well as skill that is required to construct a conventional plaster cast, it has been impossible to utilize such casts on an emergency basis to immobilize a broken bone at the scene of an accident. While in many instances such temporary immobilization would greatly facilitate transfer of the patient to a medical center and possibly prevent further and more serious injury, it has not been possible to utilize plaster casts on such an emergency basis.
lt is therefore a primary object of the present invention to provide an immobilizing orthopedic cast which can be constructed in a fraction of the time as required for a conventional plaster cast and can therefore be utilized on an emergency and temporary basis at the scene of an accident for facilitating transfer of the patient to a medical center.
As a corollary to the above object, it is an important aim of this invention to provide an immobilizing orthopedic cast which can be constructed by paramedical personnel having a minimal amount of training as compared with the amount of training necessary for a person to be qualified to construct a conventional plaster cast.
lt is still another objective of my invention to provide an orthopedic cast which is easier and quicker to construct than a conventional plaster cast and is also more comfortable for the patient to wear because of the incorporation into the cast as an integral part of a resilient layer of material between the rigid plaster and the patients body.
Still another object of this invention is to provide a method of constructing a cast for permanently setting a fractured bone that is easier for a doctor to utilize because of the elimination of the multiple steps required in building a multiple layered cast from individual splints Other objects of the invention will become apparent or be made clear from a reading of the following de scription and claims in light of the accompanying drawing.
In the drawing:
lFlG. i is a top plan view with portions broken away of a casting blank constructed according to the present invention for use in the inventive method of constructing a cast;
H6. 2 is a perspective view illustrating how the casting blank would be placed to form a cast around the ankle and foot;
FIG. 3 is a side elevational view of the ankle and foot shown in F l6. 2 with the casting blank shaped to conform to the shape of this portion of the body;
FIG. i is a side elevational view of a portion of the elbow and upper and lower arm of a person encased within a cast constructed according to the teachings of the present invention;
FIG. 5 is a side elevational view, similar to FIG. 4, and illustrating a further step which may be utilized in constructing a cast according to the method of the present invention; and
FIG. 6 is another side view of the arm and elbow shown in FlGS. 4- and 5 with the completed cast therearound.
Referring initially to FIG. 1, the present invention encompasses a novel casting blank 10 and a method of constructing it. A first sheet 12 of deformable water absorptive resilient material is placed on a working surface and trimmed to an appropriate size. While a cellular material such as foam rubber or urethane foam is preferred because of its high water absorption and resiliency, it will be appreciated that other equivalent materials which are deformable and water absorptive may be utilized. A number. of plaster splints 14 are then placed over sheet 12 in general alignment with the lat ter. Each splint 14 is of a construction well known to those skilled in the art and normally comprises a layer of gauze cloth impregnated with the dry plaster ingredients. It is to be understood, however, that the term plaster splint as used in this application is intended to include any plaster-like material which will harden after water has been added, impregnated in a carrier such as the gauze cloth. While it is much preferred to utilize the plaster splints l4, for some applications it is possible to utilize the dry plaster ingredients without the cloth carrier strips.
The number of plaster splints 14 may also be varied in accordance with the requirements for the particular cast being constructed. For most applications at least six of the splints 14 will be required to give the necessary support and additional splints may be utilized as needed.
A second sheet 16 of the same water absorptive deformable material as the first sheet 12 is trimmed to the appropriate size and placed over the splints 14 on the first sheet. The sheets 12 and 16 are each of a size such that they present a surface area larger than the surface area of the splints 14 so that the edges of the sheets extend beyond the edges of the splints.
Next, the-edges of sheets 12 and 16 are joined together preferably through use of a suitable adhesive. The completed casting blank 10 will thus comprise upper and lower layers of a resilient deformable water absorptive material with a quantity of plaster sandwiched between the two layers. It has been found helpful to provide a centering ring 18 imprinted on the surface of one of the sheets to facilitate centering of a portion of the body such as foot 20 to be enclosed within the cast formed from blank 10.
When a cast is to be constructed from blank 10, the latter is saturated with water to activate the chemical reaction that will harden the plaster. Because splints 14 are enclosed within sheets 12 and 16, the amount of water utilized is easier to control. Generally, by submerging blank for from to 40 seconds, the sheets 12 and 16 will become saturated and an adequate but not excessive quantity of water is available for splints l4. Excess water is drained and pressed from blank 10 before the latter is moved into position for shaping around foot 20. The blank is shaped around the foot to conform to the shape of the latter by folding and kneading it into place. The completed cast as illustrated in FIG. 3 and designated by the numeral 22 will normally harden in 10 minutes or less although this time may be accelerated by the application of warm air.
The blank 10 is illustrated in FIG. 3 shaped into an elbow cast 24. It will generally be preferred for a cast formed from blank 10 to be wrapped with tape 26 to hold the cast in place while it is drying. Tape 26 may be an inelastic adhesive type or may comprise an elastic material commonly referred to as an elastic bandage. The tape remains in place after the plaster cast hardens and provides some additional support for the cast as well as a degree of protection against damage. As a final dressing for the cast, a stockinette 28 may be pulled over the tape 26. Manifestly, stockinette 28 may be easily removed and washed as required.
While the foregoing method has been described with particular reference to use of a cast in immobilizing a fractured bone, the economy and simplicity of a cast constructed according to the present invention makes it readily usable in the lumbar and abdominal regions for support purposes. After the cast has hardened, it may be cut into for examination of the injured area and 4 then replaced by wrapping tightly with tape.
Having thus described the invention, 1 claim;
1. A method of constructing a casting blank from which a plaster cast for a portion of the body may be formed, said method comprising: providing a first, outermost sheet of resilient, cellular water absorptive material; deposting at least one plaster splint on said sheet; providing a second outermost sheet of deformable water absorptive material; placing said second sheet in overlying relationship to the plaster on the first sheet; and joining the peripheral edges of said first and second sheets to encase said plaster therewithin.
2. A method as set forth in claim 1, wherein said depositing step comprises depositing a plurality of said plaster splints on said first sheet.
3. A casting blank for use in forming a plaster cast for a portion of the body, said blank comprising:
a first outermost sheet of resilient cellular, substantially non-extensible deformable, water absorptive material;
a layer of plastic material disposed on said first sheet;
and Y a second outermost sheet of deformable, water absorptive material disposed in overlying relationship to said plaster material to sandwich the latter between said first and second sheets,
said first and second sheets being joined together at their peripheral edges to enclose said plaster material therewithin.
4. The invention of claim 3, wherein said layer of plaster material comprises a plurality of plaster splints.
5. The invention of claim 4, wherein said first and second sheets are bonded together.
UTHTED STATES PATENT IERTIFICATE 9E CGRRECTION Rent No. 3,900,024 ated Auqgst 19. 1975 1 Leo E Lauber and Ernest A. Cowden It is certified that error appears in he above-identified patent ad that said Letters Patent are hereby corrected as shot-m belaw:
. Colg' l'lirie please delete "plastic" and substitute Signed and Scalcd this ninth Day Of December 1975 I '[SEAL] AlIeSl.
RUTH C. MASON C. MARSHALL DANN Arresting Officer Commissioner ofParenrs and Trademarks
Claims (5)
1. A method of constructing a casting blank from which a plaster cast for a portion of the body may be formed, said method comprising: providing a first, outermost sheet of resilient, cellular water absorptive material; deposting at least one plaster splint on said sheet; providing a second outermost sheet of deformable water absorptive material; placing said second sheet in overlying relationship to the plaster on the first sheet; and joining the peripheral edges of said first and second sheets to encase said plaster therewithin.
2. A method as set forth in claim 1, wherein said depositing step comprises depositing a plurality of said plaster splints on said first sheet.
3. A casting blank for use in forming a plaster cast for a portion of the body, said blank comprising: a first outermost sheet of resilient cellular, substantially non-extensible deformable, water absorptive material; a layer of plastic material disposed on said first sheet; and a second outermost sheet of deformable, water absorptive material disposed in overlying relationship to said plaster material to sandwich the latter between said first and second sheets, said first and second sheets being joined together at their peripheral edges to enclose said plaster material therewithin.
4. The invention of claim 3, wherein said layer of plaster material comprises a plurality of plaster splints.
5. The invention of claim 4, wherein said first and second sheets are bonded together.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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US437522A US3900024A (en) | 1974-01-28 | 1974-01-28 | Orthopedic cast and method of constructing same |
BE174003A BE850297Q (en) | 1974-01-28 | 1977-01-12 | ORTHOPEDIC MOLDED PART AND ITS MANUFACTURING PROCESS |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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US437522A US3900024A (en) | 1974-01-28 | 1974-01-28 | Orthopedic cast and method of constructing same |
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US3900024A true US3900024A (en) | 1975-08-19 |
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US437522A Expired - Lifetime US3900024A (en) | 1974-01-28 | 1974-01-28 | Orthopedic cast and method of constructing same |
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Cited By (33)
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---|---|---|---|---|
US4235228A (en) * | 1979-07-27 | 1980-11-25 | Medical Specialties, Inc. | Orthopedic cast material |
US4770299A (en) * | 1987-01-06 | 1988-09-13 | Parker Medical Associates | Roll form medical bandaging product |
FR2615396A1 (en) * | 1987-05-22 | 1988-11-25 | Guignard Claude | THERMOFORMABLE ELEMENT, ESPECIALLY FOR ORTHOPEDIC BANDAGE |
US4869046A (en) * | 1987-01-06 | 1989-09-26 | Parker A Bruce | Roll form medical bandaging product and method of constructing same |
US4888225A (en) * | 1985-10-04 | 1989-12-19 | Minnesota Mining And Manufacturing Company | Resin-impregnated foam materials and methods |
US4946726A (en) * | 1985-10-04 | 1990-08-07 | Minnesota Mining And Manufacturing Company | Orthopedic splinting articles and methods |
US5002047A (en) * | 1986-09-03 | 1991-03-26 | Minnesota Mining And Manufacturing Company | Orthotic pads and methods |
WO1992019190A1 (en) * | 1991-04-29 | 1992-11-12 | M-Pact Worldwide Management Corporation | Improved casting and splinting product having multiple plaster setting rates |
US5195945A (en) * | 1985-10-04 | 1993-03-23 | Minnesota Mining And Manufacturing Company | Orthotic pads and methods |
US5203764A (en) * | 1985-10-04 | 1993-04-20 | Minnesota Mining And Manufacturing Company | Foam pads useful in wound management |
WO1995022947A1 (en) * | 1994-02-23 | 1995-08-31 | Kirschner Medical Corporation | Medical bandaging article and packaging system |
US5589131A (en) * | 1986-03-31 | 1996-12-31 | Nupipe, Inc. | Method for manufacturing a replacement pipe for installation in an existing conduit |
US5637077A (en) * | 1995-10-30 | 1997-06-10 | Smith & Nephew Casting, Inc. | Custom-molded ankle brace |
US5755678A (en) * | 1995-10-13 | 1998-05-26 | Parker; A. Bruce | Custom-fitted body protective device with variable reenforcement |
US6042557A (en) * | 1998-06-10 | 2000-03-28 | K.R. Ferguson Technologies, Inc. | Orthopedic splints and methods of making same |
US6128777A (en) * | 1999-07-29 | 2000-10-10 | Parker Athletic Products, Llc | Custom-fitted batter's forearm protector |
US6131195A (en) * | 1999-07-29 | 2000-10-17 | Parker Athletic Products, Llc | Custom-fitted batter's lower leg protector |
US6134720A (en) * | 1999-07-29 | 2000-10-24 | Parker Athletic Products, Llc | Shin guard with enhanced tibial protection |
US20040147859A1 (en) * | 2002-02-25 | 2004-07-29 | O'keefe Thomas J | Orthopedic cast construction |
US20040215120A1 (en) * | 2003-04-24 | 2004-10-28 | Jensen Jeffrey L. | Apparatus and method for applying a total contact cast |
US20060079819A1 (en) * | 2004-10-13 | 2006-04-13 | Bsn Medical, Inc. | Orthopedic splint |
US20060282030A1 (en) * | 2005-06-10 | 2006-12-14 | Martin James C | System for forming a structure having load-bearing capabilities |
US20090090733A1 (en) * | 2007-10-04 | 2009-04-09 | Bsn Medical, Inc. | Medical bandaging product |
WO2009094037A1 (en) | 2008-01-25 | 2009-07-30 | Bsn Medical, Inc. | Medical bandage cover, medical bandage, and medical bandaging product |
US20100233417A1 (en) * | 2006-06-12 | 2010-09-16 | Concrete Canvas Limited | Impregnated fabric |
WO2013090245A1 (en) | 2011-12-12 | 2013-06-20 | Bsn Medical, Inc. | Knitted substrate for use in medical bandaging product and bandaging product |
US9187902B2 (en) | 2011-11-01 | 2015-11-17 | Cortex Composites, Llc | Nonwoven cementitious composite for in-situ hydration |
US9226843B2 (en) | 2011-01-18 | 2016-01-05 | Medefficiency, Inc. | Systems and methods for limb support |
US10167635B2 (en) | 2011-11-01 | 2019-01-01 | Cortex Composites, Inc. | Nonwoven cementitious composite for In-Situ hydration |
US10221569B2 (en) | 2011-11-01 | 2019-03-05 | Cortex Composites, Inc. | Cementitious composite constituent relationships |
US10435859B2 (en) | 2015-11-05 | 2019-10-08 | Cortex Composites, Inc. | Cementitious composite mat |
US11771153B1 (en) | 2022-04-20 | 2023-10-03 | Wilson Sporting Goods Co. | Batter's hand guard |
US11793254B2 (en) | 2020-06-04 | 2023-10-24 | Wilson Sporting Goods Co. | Sports glove |
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Cited By (53)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4235228A (en) * | 1979-07-27 | 1980-11-25 | Medical Specialties, Inc. | Orthopedic cast material |
US5195945A (en) * | 1985-10-04 | 1993-03-23 | Minnesota Mining And Manufacturing Company | Orthotic pads and methods |
US4888225A (en) * | 1985-10-04 | 1989-12-19 | Minnesota Mining And Manufacturing Company | Resin-impregnated foam materials and methods |
US4946726A (en) * | 1985-10-04 | 1990-08-07 | Minnesota Mining And Manufacturing Company | Orthopedic splinting articles and methods |
US5203764A (en) * | 1985-10-04 | 1993-04-20 | Minnesota Mining And Manufacturing Company | Foam pads useful in wound management |
US5589131A (en) * | 1986-03-31 | 1996-12-31 | Nupipe, Inc. | Method for manufacturing a replacement pipe for installation in an existing conduit |
US5002047A (en) * | 1986-09-03 | 1991-03-26 | Minnesota Mining And Manufacturing Company | Orthotic pads and methods |
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