 Method and apparatus for cutting a web fibrous non-woven mat |
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| Combination harness and coverlet for infant seats |
| OF A PREFERRED EMBODIMENT FIG. 1 illustrates a conventional infant seat 10 including the harness ... |
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| Thermoset resin impregnated web and process of making |
| By an aspect of the invention a fibrous web containing thermoset resin is provided that has about 3 ... |
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| Adjustable cover for infant car seat |
| I claim: 1. A cover for use with infant car seats of a range of different dimensions of the type ... |
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| Nylon or polyester treated fabric for bedding |
| I claim: 1. A process for making a fabric comprising the steps of: (a) tightly weaving a cloth ... |
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| Cutting machine |
| The present invention relates to a cutting machine not suffering from the disadvantages of the ... |
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| Disposable absorbent product having resilient scalloped edge, and method of making the product |
| OF THE INVENTION A disposable absorbent article--panty liner 20 which is an exemplary embodiment ... |
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| Multiple-layer polyolefin films |
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| Method of tissue growth |
| I claim: 1. A method of growing tissue allowing vasular ingrowth whereby living tissue is grafted ... |
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| Self-contained urine collecting device for use by females |
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Material as spongiosacement with effervescent reabsorptive effect
| Details |
Inventors: Tomic, Dobrivoje;
Assignee:
Primary Examiner: Lieberman; Allan
Assistant Examiner:
Attorney, Agent or Firm: Morse, Altman, Oates & Dacey
A method and material for cementing solid animal tissue in situ is disclosed. Fractured and broken bones, roots of teeth, prosthetic devices and the like are cemented in place and by means of a composition which, when mixed and applied, foams to form a porous cement and cures in place having effervescent, adhesive and partially reabsorptive properties. |
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DETAILED DESCRIPTION I claim: 1.
A cement mixture for use in surgical and therapeutic procedures in animals, comprising (a) approximately 70% by weight polymethylmethacrylate as a cementitious substance, (b) approximately 20% CaCO.
sub.
3 as effervescent medium, (c) approximately 10% Na.
sub.
2 HPO.
sub.
4.
12H.
sub.
2 O as reabsorptive substance, and, (d) phosphoric acid as an agent for activating said medium to cause said medium to effervesce whereby when said cement is mixed and applied to an animal bone, solid tissue and the like the effervescent effect and reabsorptive substance will produce voids in said cement prior to the curing of said cement in situ.
2.
The method of cementing bones, teeth and prosthetic devices in an animal, comprising the local application in said animal of an uncured mixture by weight of approximately 70% PMMA, approximately 20% CaCO.
sub.
3, approximately 10% Na.
sub.
2 HPO.
sub.
4.
12H.
sub.
2 O mixed with a monomeric liquid and phosphoric acid and allowing said mixture to cure in situ.
Description:
The discovery involves a material as Spongiosacement with effervescent and reabsorptive effect for the purpose of cementation and coalescence of/with human or animal solid tissue, which, in addition to its use in replacement or cementing of sections of bones or roots of teeth, can also be applied in the fastening and incorporation of foreign bodies, especially in surgical procedures.
As materials compatible for bone replacement and seating of foreign bodies some so-called bone cements have long been known ("Die Knochenzemente," Enke Verlag Stuttgart).
Their attachment in the bone is made possible by mechanically produced retention and there exists only sporadic surface contact between the bone and the bone tissue.
Following solidification there develops a closed, smooth surface, which remains constant.
All known bone cements, however, involve numerous disadvantages, especially concerning the fixing and coalescence with surrounding tissue.
As a result of their solidification, much healthy bone substance is destroyed, in spite of the fact that contact and attachment on adjacent sections of bone are achieved only sporadically
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Semiconductor manufacture 
