VSI Equine Dystocia Simulator

1. Equine Dystocia Simulator

1.1 Care, Handling and Maintenance

This document provides guidance on the care and maintenance of the VSI Equine Dystocia Simulator to ensure its longevity and prevent misuse or damage. It covers the equine model and its accessories. The VSI foal is addressed in a separate document.

1.2 Horse Body

The horse model is handcrafted, with minor variations possible. It is constructed from fiberglass infused with epoxy resin for durability and safety. While UV resistant, it is sensitive to high temperatures, which may cause deformation, particularly with the body hatch fit. The model is intended for indoor use. If deformation occurs due to high temperatures, contact a VSI technician for assistance. Built-in guides and registers aid in hatch replacement, but care should be taken. Clean the model with mild soap and water using a low-pressure washer. Avoid harsh solvents or abrasive tools.

1.3 Birth Canal

The birth canal is formed by a resin cast pelvis and an inflatable, three-chambered bladder. These components can be removed for cleaning or to replace the perineum panel. The bladder is held by friction. The pelvic bone structure is secured by a single bolt at the floor of the pelvis. The bladder pressure can be adjusted using the provided hand pump; over-inflation may deform the pelvic structure.

1.4 Perineum Panel

The perineum panel is designed for flexibility and durability, featuring an oversized vulva or anal opening. Tears can be repaired with the provided silicone adhesive. Clean the damaged area with isopropyl alcohol, apply adhesive, set the tear, and allow at least 12 hours for curing. The panel is replaceable and attached to a rigid ring flange with plastic turn-locks. To remove the panel, first remove the pelvis by detaching the single bolt at the pelvic floor. Lift the hook-bones from their mounts to release the pelvis. Then, release the panel by turning the twist-locks and carefully flexing the rigid mounting flange. Separate the soft panel from the rigid ring by removing the plastic fasteners. VSI equine reproductive tract panels have dedicated rigid installment rings for easy exchange. Always use water-based lubricant with the foal model or during palpation. A small hole near the equine's navel allows excess lubricant to drain; check this periodically for blockages.

1.5 Foal Support System

A large, multi-chambered inflatable air bladder within the horse's body provides uterine support for the VSI foal model. The bladder has one large lower chamber and two smaller side bolsters, inflated separately via cranial valves. Vinyl flaps attached to the side bolsters protect the foal from abrasion during loading. Once the foal is positioned, these flaps can be folded inside, and the hatch installed. The uterine air support chamber is held by friction and can be removed for cleaning. Use only the provided small hand-pump for inflation to control pressure and avoid damage. The bladder can be repaired with a vinyl repair kit or by contacting VSI. A translucent vinyl bag serves as a rudimentary uterus for the foal and lubricant. This bag attaches to the perineum panel's rigid ring and has a dorsal opening for the foal and a Velcro closure. Grommets and elastic cords with clips attach the vinyl bag to 'D'-rings inside the body to prevent prolapse during extraction. Use a moderate amount of water-based lubricant for free movement of the foal during demonstrations and pulling. NOTE: Moderate amounts of water-based lubricant should be applied to the perineum panel and foal to prevent component damage. Diluted glycerin-based liquid soap can also be used. Ensure proper gloving as if working with a live animal.

1.6 Horse Tail

The horse tail is made of synthetic hair over a central cable core, attached by a threaded rod. It can be removed by turning counterclockwise at the tail base. If loosened, turn clockwise until moderately tight, but do not over-tighten. The tail is primarily for appearance and can be wrapped or bound, but is not intended to function as an actual horse tail.

1.7 Foal Pulling

A modified Dr. Frank's Fetal Extractor and a drop mat are provided. Padding on the jack base prevents damage to the horse model's surface. Use the puller as intended for live animals. Any other extractors may damage the model. The drop mat provides a soft landing surface for the foal if dropped during extraction. Always use the mat when there is a risk of dropping the foal. Never drop the foal on a hard surface.

1.8 Storage

Store the VSI equine unit indoors under moderate temperature conditions. The foal model can be stored inside the horse if the uterine air bladder is properly inflated. For transport, always remove the foal from the horse and carry it in the provided bag or a similar container.

1.9 General

Clean the horse model and large components with mild detergent and low-pressure washing. Avoid harsh solvents or abrasive tools. The model is painted with acrylic latex paints and coatings, which can be touched up. Many components are replaceable or repairable.

2. Dystocia Foal Model

2.1 Care, Handling and Maintenance

The VSI dystocia foal model is designed for instruction and demonstration of various dystocia positions and remedies. It is a durable simulator with natural movement, made with a soft skin and articulated skeleton requiring care and supervision. Use it only for table-top demonstrations or with the compatible VSI dystocia horse model. Do not use with other manufacturers' simulators. VSI provides warranty for manufacturer defects but not for damage from misuse or unsupervised handling. The model is heavy yet delicate. While a real foal experiences birth trauma once, this model may undergo the procedure multiple times daily. Follow these instructions to ensure longevity. Always use the VSI foal model with a VSI equine dystocia simulator or for table-top demonstration, preferably with the VSI uterine bag, to prevent damage. Use moderate lubricant when loading the foal into the bag. The foal model is designed for chaining legs and pulling with jacks, but avoid undue strain or dropping it from any height, as this can damage the skin, hooves, and skeleton.

NOTE: When used with the VSI horse model and uterine bag, use moderate amounts of water-based lubricant on the foal model, uterine bag, and perineum panel to create a realistic, slippery surface and reduce friction that may cause damage to the soft skins.

2.2 Warranty, Care, Use

VSI has invested significant resources in the design and development of this model, with real-world usage informing its functionality and durability. Pricing, purchasing, and warranty guidelines are provided to serve clients effectively. The models were designed based on available technology and consultation with professionals. While used beyond intended parameters, attempts to accommodate broader use have pushed limitations. The models are intended to demonstrate mal-presentation and manipulation for extraction under qualified instruction. Minimize extraction to reduce strain and damage. Gently lower the calf during extraction and use a soft drop-mat to cushion accidental drops. These models are not for public demonstration unless guidelines are followed. They are heavy yet delicate. While a real foal experiences birth trauma once, this model may undergo the procedure multiple times daily. With proper care, clients have extracted the calf over 1000 times without major issues, but mishandling can cause irreversible damage. Detailed instructions for use, care, and maintenance are included, but common sense is paramount. VSI provides a 2-year warranty for manufacturer defects, excluding damage from misuse, unsupervised handling, or issues appearing after the warranty period. Repairs and refurbishment are available from VSI for a fee after the warranty expires. VSI values input from educational partners for continuous improvement and relies on the understanding and cooperation of professionals who use these models.

3. Equine Nasogastric Model

3.1 Care, Operation, and Maintenance

Equine Nasogastric Model (1025593) Components: Nasogastric equine head, Nasogastric equine neck with skin cover, Nasogastric stomach chamber, Venipuncture fluid, Venipuncture fluid reservoir, Mane, Extra veins.

Equine Nasogastric Model with Stand (1025594) Components: Nasogastric equine head, Nasogastric equine neck with skin cover, Nasogastric stomach chamber, Venipuncture fluid, Venipuncture fluid reservoir, Mane, Extra veins, Adjustable rolling stand.

3.2 Setting Up the Model

Set up the adjustable rolling stand according to its manual. Use the stand adapter to attach the neck to the stand. The neck has a female metal bracket that connects to the stand adapter's male fitting. Secure the adapter to the neck, then insert it into the stand's female receiver. Mount the stomach chamber onto the rolling stand tower, aligning its opening with the neck base. A small opening at the neck base allows the nasogastric tube to pass into the stomach chamber. The chamber can be filled with liquid and scented. Clean by unscrewing the top and washing with soapy water. Attach the nasogastric head by inserting the steel bar at the back of the head into the female receiver on the neck. Ensure a snug fit. The model is ready for use once the stand, neck, head, and stomach chamber are assembled.

3.3 The Neck

The neck structure is flexible urethane foam with a steel armature. The cranial plane has a female bracket for the horse head's male bracket. A female fitting on the transverse plane allows attachment to the stand or equine body. For stand attachment, insert the stand adapter into the neck's back female receiver and secure with the hex-head set screw. For attachment to the equine body, pass the neck's hose through the hole/tube on the body's right front side. Insert the body's square tubing into the neck's square tubing, avoiding pinching the hose. Connect the hose to the reservoir bag inside the body cavity. A 'D' ring is located on the left front interior bulkhead for hanging the reservoir bag. The neck features intramuscular and venipuncture functionalities. Intramuscular injections can be made into urethane foam pads in the trapezoidal cutouts. Replacement pads (1025600) are available. The venipuncture feature uses silicone-backed latex tubes in the jugular groove region to simulate veins. These tubes are connected to a fluid reservoir via a one-way valve/connector. A latex band secures the hose and connector.

3.4 The Veins

The jugular veins are represented by 50 cm (20 in.) lengths of thin-walled latex tubing, requiring replacement when leaks occur. This tubing is UV sensitive and should be protected from UV and stored in a cool, dry environment. While tap water can be used, a one-liter container of simulated blood concentrate is provided. Mix at a ratio of 1 part concentrate to 3 parts water. The concentrate helps mitigate leakage from needle punctures. Thick silicone inserts back the veins, absorbing punctures. These inserts are replaceable and can be removed by hand. To fill the veins, fill the reservoir bag with fluid and hang it on the stand. Connect all lines, with veins inserted into jugular grooves. Air-lock may occur. With the horse head removed, open the relief/bleeder valves at the cranial end of the vein to allow fluid to flow. Release the valves to stop flow. If fluid does not flow, gently squeeze the reservoir bag to start siphoning. To drain or replace veins, remove the hide covering and detach the latex tubing from connectors. The one-way valve/connector will impede draining.

3.5 The Skin Cover

A tailored, stretchable cloth represents the skin cover, with Velcro patches along the mane's growth line. The mane is a separate strip of hair material with Velcro strips for attachment. The hide must be removed to insert or replace veins or intramuscular injection pads. Apply the skin cover with the neck on the stand, all components assembled, veins filled, and head removed. Start by orienting the cover and pulling it over the neck. Massage the material for close conformity. When using the neck on the equine body, install the hide before attaching the head/neck assembly. The neck's rubber and foam are sensitive to UV light and oxidation; keeping the skin cover on can offer partial protection. The neck's rubber covering may yellow over time.

4. Adjustable Stand

4.1 The Head

The head is made of rubber-coated, flexible foam with a metal armature and a square-tubing bracket that slides into the neck structure. The open mouth allows for bridle attachment. Head placement secures the neck's hide covering. Detach the head to access bleeder valves or remove the neck's hide. Both nostrils allow nasogastric tube insertion; lubrication is optional. The tube may enter the nasal passage or trachea, requiring readjustment. It then passes into the esophagus; a bulge at the neck base indicates passage into the stomach chamber.

4.2 The Stand

The stand is adjustable for height, head angle (forward/back), and 90-degree rotation. Prepare the Base: Place the base on a flat, sturdy surface with wheels down. Remove the top bolt and wingnut to access the opening for the tower. Ensure the lower bolt and wingnut remain in place. Attach the Stand Tower: Insert the tower into the base's central metal hole, resting on the lower bolt. Use the second bolt to secure the tower to the base. Handle Installation: Remove the bolt and wingnut from the handle. Slide the handle onto the tower's top square hole. Adjust the Handle Height: Lower the handle to the desired height and lock with the bolt and wingnut. Adjust height or tilt by removing the wingnut and bolt, making adjustments, and re-securing. Final Checks: Before placing the model on the stand, ensure all bolts are tightened, wheels are locked, and the stand adapter is attached. Adjust the head tilt using the single bolt and wingnut to lock the head position. The head's square bracket fits into the adjustment assembly's tube. Use the hand crank to adjust tilt. Rotate the head 90 degrees right by removing the locking pin. Engage wheel locks (depress downwards) when in use. Stand components are resistant to moisture, but store indoors and dry to prevent corrosion. Slide the provided adapter into the crank mount for seamless integration with the stand. Slide the horse neck onto the adapter. Contact VSI for assistance with any challenges.

Contact Information

3B Scientific GmbH
Ludwig-Erhard-Straße 20
20459 Hamburg, Germany
Phone: +49 (0)40-73966-0
Fax: +49 (0)40-73966-100
3bscientific.com
info@3bscientific.com