Embalming Technology

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Embalming Technologies (Part 19) Basic Chemistry of Embalming

Posted by John A. Chew on June 25, 2014

 

  As a continuation of decomposition, this article will cover the recommended minimal treatment of symptomatic conditions associated with a myriad of diseases. The embalmer/practitioner must blend cognitive knowledge with manipulative skills to meet the challenges of the 21st century.

  The previously identified symptomatic conditions may be associated with many diseases individually or in various numbers. The following may be of major concern in the analytical pre-analysis of the dead body prior to embalming.

 

Dehydration       Jaundice     Purge      Emaciation

Discolorations     Skin Slip     Edema    Decomposition

 

Dehydration

     Re-hydration using a triple base preservative pre-injection chemical

     Large volume, low-pressure, low rate of flow

     Room temperature solvent (vehicle)

     Diluted preservative of compatible chemicals

     Conditioners, moisture retaining chemical

Aids

         Massage cream

         Drainage chemicals

         Controlled injections (Pressure and Rate of Flow)

         Hypodermic tissue building

 

Emaciation

             Rehydration using a triple base preservative pre-injection chemical

             Large volume, low pressure, low rate of flow

             Room temperature solvent (vehicle)

             Diluted preservative chemicals containing lanolin after second or third injection

             Add conditioner for molecular retention

     If additional preservation should be required, a low index arterial is recommended for the control of dehydration, skin texture, and embrittlement or even for natural incarnadining effects.

 

Edema

     Handle with extreme care as not to separate the epidermis from the dermis creating manipulative desquamation.   

     Tertiary dilution due to the body’s abnormal liquid content

     Leakage pre and post embalming

     Distortion of features

     Rapid decomposition

Aids

         Elevation of extremities prior to, during and after embalming (gravitation)

         Rubber dam, elastic bandages or digital force

         Wicking visual areas after embalming

         Siphonization

     Channeling wire

     Astringent mixture, high index to draw edematous water from the tissue using continuous injection and drainage, co-injection may be necessary due to cause of death, medications, or medical treatments.

     Use concentrated solution of Epsom Salt as a vehicle for fluid mixture.

     The saturated solution should be strained to remove excess Epsom salt crystals which might damage the pump in the embalming machine.

     The Epsom Salt should be used as a solvent/vehicle and mix the preservative chemical in accordance to the predetermined preservative dilution.

     It is recommended that the injection should be sectional to maintain maximum control.

     Restricted cervical injection may be used if only the head is affected or if the whole body is affected except the head.

     Follow up using experiential determination of modified fluid and/or humectant based preservative chemical to restore natural contours.

     Sectional embalming 1 through 6 points

     Regional embalming the autopsied body

     Restricted cervical right and left carotids

     Hypodermic treatment High Index Arterial

     Topical treatment

     Reinforced Plastics

 

Discoloration

     Primary pre-injection or capillary washes are commonly used to clear or reduce intravascular discolorations. The type of chemical is an important consideration.

     Capillary washes are formulated non HCHO preservative anticoagulants which restore or build up mixture content and lubricate vascular network.

     Many fragment blood components maintain blood liquidity for easy removal.

     Primary drainage chemical with triple base preservatives and sequestering agents which prepare and clear the vascular system for HCHO based arterial fluids.

     Build up intravascular pressure in accordance to the condition of the body and specific cause of discoloration. (1 quart to 7 gallons)

Common Surface Discolorations:

Adhesive Tape     Blood                 Fingerprint ink

Grease                Gentian Violet    Hair Dye 

Iodine                 Methiolate          Paint

Silver Nitrate      Tar                     Lemon Juice

Acid Alcohol       Dry Shampoo     Turpentine

Tobacco stains, Nicotine         Kerosene

Permatex Hand Cleaner           Sodium Thosulfate

Isopropyl Alcohol                    Soap and cold water

Iodine Wash & Sodium Thosulfate

Note: Wash with suitable solvents and cleansing agents

Aids

     Remember proper positioning of the body to allow for natural gravitational processes to clear discolorations. Begins at time of removal, initial positioning on preparation table.

     Determine type of discoloration or stain (Apply digital pressure if the area blanches the discoloration can be removed, if not, then it’s a stain and can only be lightened)

     Controlled injection formulation after preparation/flushing of the vascular system.

     Strong initial injection will fix discolorations and should not be used.

     Use of proper size arterial tubes and drain tubes, manual massage with drainage tube open

     Arterial and/or venous injection and cosmetic application (internal dyes or external liquid/creams)

 

Jaundice

     Basically there are six forms of Jaundice on the ecterus index. There is one that is more reactive to oxidation than the others. Jaundice is measured in degrees on a color index. A normal range of intensity of color is on a numeric scale 3 to 5. When excessive amounts of bilirubin are present and jaundice becomes apparent, the index is usually 15 or higher. There are about 20+ causes of jaundice.

     During primary disinfection and scrubbing of the body excess bilirubin washes off. To date there is no way for an embalmer/practitioner to determine the oxidative process and how it will affect any given body. The oxidative process converts bilirubin yellow into biliverdin green and on rare occasions will turn the body black (Black Jaundice). Rule of thumb is to treat any jaundiced body as a potential hazard because it is a symptomatic condition of viral hepatitis. Bilirubin in the vascular system prevents clotting and rarely the embalmer will find clots in the jaundiced body.

     A common post embalming problem is blistering this is due to the practitioners failure of using overly diluted arterial fluids. Extensive edema in the extremities may be associated with some primary causes of symptomatic jaundice.

     A pre-injection fluid may be used with a primary injection solution to flush the vascular network of excessive ammonia and water. Small punctures may be made in the wrist or posterior upper leg, channeled with a straightened wire coat hanger and wicked. Elevate affected areas with topical cauterants and preservatives.

Aids

     Flush the system with a primary fluid

     Use constant injection with intermittent drainage

     Use a specially formulated jaundice fluid.

 

    The three most common embalming complications that are associated with a large variety of pathological conditions are:

1.      Discolorations (Jaundice)

2.      Dehydration (Emaciation)

3.      Edema

  This will conclude information on decomposition.   ET-20 will deal with the autopsy.


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