DE867584C - Rigid molded body to be adapted to the human body for medical purposes - Google Patents

Rigid molded body to be adapted to the human body for medical purposes

Info

Publication number
DE867584C
DE867584C DEE2245A DEE0002245A DE867584C DE 867584 C DE867584 C DE 867584C DE E2245 A DEE2245 A DE E2245A DE E0002245 A DEE0002245 A DE E0002245A DE 867584 C DE867584 C DE 867584C
Authority
DE
Germany
Prior art keywords
thermoplastic
synthetic resin
resin layer
medical purposes
semiconductors
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
Application number
DEE2245A
Other languages
German (de)
Inventor
Karl Dr Egen
Manfred Schelzig
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to DEE2245A priority Critical patent/DE867584C/en
Application granted granted Critical
Publication of DE867584C publication Critical patent/DE867584C/en
Expired legal-status Critical Current

Links

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
    • A61F13/04—Plaster of Paris bandages; Other stiffening bandages
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/0272—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using lost heating elements, i.e. heating means incorporated and remaining in the formed article
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/88—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts characterised primarily by possessing specific properties, e.g. electrically conductive or locally reinforced
    • B29C70/882—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts characterised primarily by possessing specific properties, e.g. electrically conductive or locally reinforced partly or totally electrically conductive, e.g. for EMI shielding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/88—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts characterised primarily by possessing specific properties, e.g. electrically conductive or locally reinforced
    • B29C70/882—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts characterised primarily by possessing specific properties, e.g. electrically conductive or locally reinforced partly or totally electrically conductive, e.g. for EMI shielding
    • B29C70/885—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts characterised primarily by possessing specific properties, e.g. electrically conductive or locally reinforced partly or totally electrically conductive, e.g. for EMI shielding with incorporated metallic wires, nets, films or plates
    • 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
    • A61F2013/00089—Wound bandages
    • A61F2013/00165—Wound bandages not touching the wound
    • 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
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/51—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers
    • A61F2013/51078—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers being embossed
    • 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
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
    • A61F13/534—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad
    • A61F2013/53445—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad from several sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2705/00—Use of metals, their alloys or their compounds, for preformed parts, e.g. for inserts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2707/00—Use of elements other than metals for preformed parts, e.g. for inserts
    • B29K2707/04—Carbon
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0003—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular electrical or magnetic properties, e.g. piezoelectric
    • B29K2995/0005—Conductive

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Biomedical Technology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Physics & Mathematics (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Thermal Sciences (AREA)
  • Electrotherapy Devices (AREA)

Description

Das Patient 858 oo6 betrifft einen dem menschlichen Körper anzupassenden Formkörper für medizinische Zwecke; dieser Formkörper besteht aus thermoplastischem Kunstharz, das bei Körpertemperatur starr ist und bei höheren. Temperaturen plastisch wird; in den Formkörper ist ein elektrischer Widerstand eingeschlossen, der an eine Stromquelle anschließbar ist. The patient 858 oo6 concerns a person to be fitted to the human body Molded articles for medical purposes; this molded body is made of thermoplastic Synthetic resin that is rigid at body temperature and at higher temperatures. Temperatures plastic will; An electrical resistor is included in the molded body, which is connected to a Power source can be connected.

Es ist auch schon vorgeschlagen worden, die Erwrärmung des Formkörpers dielektrisch mittels hochfrequenter Schwingungen vorzunehmen Gemäd vorliegender Erfindung sind in die thermoplastische Kunstharzschicht in feiner Verteilung Halbleiter, wie Graphit oder Ruß. eingeschlossen, derart, daß die Dispersion leitend ist und bei Stromdurchgang erwlärmt wird. Es entfällt somit die Anordnung besonderer elektrischer Heizwiderstände, ebenso die Verwendung hochfrequenter Schwingungen zur Erwärmung. Letztere geschieht einfach durch Anschluß der die Halbleiter in feiner Verteilung enthaltenden Schicht an eine Stromquelle. Um dies zu erleichtern und eine günstige Stromverteilung auf größere Flächen zu gewährleisten, wird die Halbleiterfolie oder Schicht mit dünnen Elektroden aus gut leitenden Metallfolien versehen, z. B. belegt. Durch kurzzeitiges Anlegen einer Schwachstromquelle, z. B. einer Ia-Volt-Batterie oder eines Transformators, erreicht die Halbleiterschicht eine Temperatur von 70 bis SoO C und wird hierbei gut plastisch und modellierfahig. Nach Auskühlung -wird das Material wieder hart Diese Vorgänge lassen sich mit den erfindungsgemläßen Halbleiterdispersionen beliebig wiederholen. It has also been suggested that the molding be heated to be carried out dielectrically by means of high-frequency vibrations Invention are in the thermoplastic synthetic resin layer in fine distribution semiconductors, like graphite or carbon black. included such that the dispersion is conductive and is heated when the current passes through. The arrangement of special electrical devices is thus omitted Heating resistors, as well as the use of high-frequency vibrations for heating. The latter happens simply by connecting the semiconductors in fine distribution containing layer to a power source. To make this easier and a cheap one To ensure current distribution over larger areas, the semiconductor film or Layer provided with thin electrodes made of highly conductive metal foils, e.g. B. occupied. By briefly applying a low power source, e.g. B. an Ia-volt battery or a transformer, the semiconductor layer reaches a temperature of 70 up to SoO C and becomes very plastic and modelable. After cooling down -will the material hard again. These processes can be carried out with the semiconductor dispersions according to the invention repeat at will.

Der elfindungsgemäße Formkörper gewährleistet eine Reihe von Vorteilen. Die Formkörper gewinnen durch Heizfolien und die Halbleiterdispergierung eine noch größere Festigkeit. Da Heizdrähte in Wegfall kommen, kann der Formkörper beliebig gefenstert werden; er ist von Flächendimensionen und Umfangsformen völlig unabgängig; d. h. der Formkörper kann je nach Körper teil beliebig zurechtgeschnitten werden, ohne daß eine Unterbrechung der Beheizung stattfindet. Die Anheiz- bzw. Auskuhlzeit wird wesentlich, nämlich um etwa 5o0/o, verringert, so daß eine sehr rasche Fixierung der zu behandelnden menschlichen Körperteile stattfindet. Die Beheizung mit 12 Volt Betriebsspannung ist ohne jede Gefahr verwendbar. The shaped body according to the invention ensures a number of advantages. The moldings gain one more thing through heating foils and the semiconductor dispersion greater strength. Since there is no need for heating wires, the shaped body can be of any size to be windowed; it is completely independent of surface dimensions and circumferential forms; d. H. the shaped body can be cut to size depending on the body part, without interrupting the heating. The heating up or cooling down time is reduced significantly, namely by about 50 / o, so that a very rapid fixation the human body parts to be treated takes place. The heating with 12 volts Operating voltage can be used without any danger.

Bei der erfindungsgemäßen Anordnung ist die Verteilung von Belüiftungslöchern für die Hautatmung flächenunabhängig, so daß der Wasserdampf-Luft-Austausch weitgehend gesichert ist. In the arrangement according to the invention, the distribution of ventilation holes is for skin respiration independent of area, so that the water vapor-air exchange is largely is secured.

Ferner gewinnt infolge der Möglichkeit der beliebigen Durchltöcherung die Modellierfähigkeit der Formkörper ohne Beeinträchtigung der Festigkeit im starren Zustand.Furthermore, it gains due to the possibility of any perforation the modeling ability of the moldings without impairing the strength in the rigid State.

Die Zeichnung zeigt schematisch im Querschnitt ein Ausfiuhrungsbeispiel. f ist eine thermoplastische Kunstharzschicht, in welcher Halbleiter, wie Graphit oder Ruß, fein verteilt sind. g sind Metallfolien, die als Elektroden dienen. Ji sind isolierende Deckschichten aus thermoplastischen Kunstharzen. Die einzelnen Teile sind durch Zusammenschmelzen oder Zusammenpressen vereinigt. The drawing shows a schematic cross-section of an exemplary embodiment. f is a thermoplastic synthetic resin layer in which semiconductors such as graphite or soot, are finely divided. g are metal foils that serve as electrodes. Ji are insulating cover layers made of thermoplastic synthetic resins. The single ones Parts are united by melting or pressing together.

Claims (3)

PATENTANSPRÜCHE I. Dem menschlichen Körper anzupassende, starr werdende Formkörper für medizinische Zwecke, bestehend aus thermoplastischen Massen, die bei erhöhter Temperatur plastisch, bei KBörpertemperatur jedoch starr. sind, wobei in den Formkörper elektrische Heizwiderstände eingebaut sind, nach Patent 858 oo6, dadurch gekennzeichnet, daß in einer thermoplastischen Kunstharzschicht in feiner Verteilung Halbleiter, wie Graphit oder Ruß, enthalten sind, derart, daß die Dispersion leitend ist und bei Stromdurchgang erwärmt wird. PATENT CLAIMS I. Those that become rigid and adaptable to the human body Shaped bodies for medical purposes, consisting of thermoplastic masses that Plastic at elevated temperature, but rigid at body temperature. are, where electrical heating resistors are built into the molded body, according to patent 858 oo6, characterized in that in a thermoplastic synthetic resin layer in finer Distribution semiconductors, such as graphite or carbon black, are contained in such a way that the dispersion is conductive and is heated when current passes through. 2. Formkörper nach Anspruch 1, dadurch gekennzeichnet, daß die thermoplastische Kunstharzschicht mit aufgelegten oder eingebetteten Metallfolien als Elektroden versehen ist. 2. Shaped body according to claim 1, characterized in that the thermoplastic Synthetic resin layer with applied or embedded metal foils as electrodes is provided. 3. Formkörper nach Anspruch I und 2, dadurch gekennzeichnet, daß er aus einer mit Halbleitern in feiner Verteilung versetzten, thermoplastischen Kunstharzschicht, beidseitig aufgelegten Elektrodenfolien und isolierenden Deckschichten aus thermoplastischem I(unstharz besteht. 3. Shaped body according to claim I and 2, characterized in that it consists of a thermoplastic material mixed with finely divided semiconductors Synthetic resin layer, electrode foils applied on both sides and insulating cover layers consists of thermoplastic resin.
DEE2245A 1950-09-26 1950-09-26 Rigid molded body to be adapted to the human body for medical purposes Expired DE867584C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEE2245A DE867584C (en) 1950-09-26 1950-09-26 Rigid molded body to be adapted to the human body for medical purposes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEE2245A DE867584C (en) 1950-09-26 1950-09-26 Rigid molded body to be adapted to the human body for medical purposes

Publications (1)

Publication Number Publication Date
DE867584C true DE867584C (en) 1953-02-19

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2322725A1 (en) * 1975-09-05 1977-04-01 Mac Phersons Ltd Curing mouldings in situ by direct resistive heating - for moulding rubber or friction (brake lining) materials efficiency
FR2637534A1 (en) * 1988-10-11 1990-04-13 Pascal Roger Method of manufacturing a composite-material component by pressing, and component obtained by this method
EP0435045A2 (en) * 1989-12-23 1991-07-03 Bayer Ag Method of making a half-product with electrically conducting plastic layers
WO2010031586A1 (en) * 2008-09-22 2010-03-25 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Method for deforming objects and deformable objects

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2322725A1 (en) * 1975-09-05 1977-04-01 Mac Phersons Ltd Curing mouldings in situ by direct resistive heating - for moulding rubber or friction (brake lining) materials efficiency
FR2637534A1 (en) * 1988-10-11 1990-04-13 Pascal Roger Method of manufacturing a composite-material component by pressing, and component obtained by this method
EP0435045A2 (en) * 1989-12-23 1991-07-03 Bayer Ag Method of making a half-product with electrically conducting plastic layers
EP0435045A3 (en) * 1989-12-23 1991-12-27 Bayer Ag Method of making a half-product with electrically conducting plastic layers
WO2010031586A1 (en) * 2008-09-22 2010-03-25 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Method for deforming objects and deformable objects

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