First, I am not a Doctor or have any special medical training, so whatever you read here is just a guide to help you get started on your search for information on closing wounds.
If this is a subject that is of interest to you I suggest that you obtain a copy of Wound and Lacerations, Emergency Care and Closure be Alexander T. Trott, MD. This is an excellent book that can be found on Amazon or downloaded from the internet. It gives detailed instructions on closing wounds.
In closing wounds, you have several opinions, butterfly bandages, sutures, staples or super glue.
Without special training, I would not try to use super glue for closing a deep wound. I have used it for small surface wound without any problem. The super glue that is used in Doctors’ offices is specifically designed for use on humans.
Butterfly bandages work well on surfaces that do not move excessively, such as knees or elbows. They are best used on wounds that are small and shallow. For deep gaping wounds always get medical advice if it is available. Here is a link to a post on How to Make and Use Butterfly Bandages.
Sutures have been around for thousands of years and are still probably the best method of closing a deep wound. You can use almost any type of needle, but the curved suturing needles are the easiest to use. They also make a curved needle for upholstery, but I don’t know what sizes they come in.
A suture set that I do like is the Adventure Medical Suture Syringe Kits. They are designed for use in third world countries and have IV needles, syringes and sutures plus wound care supplies. They are a bit expensive but can be ordered directly from The Adventure Medical web site. You can also order individual sutures from many different web sites.
If you want to practice, I have heard of both pork roasts and oranges being used to practice suturing. Sutures also have a shelf life here is a post on it Shelf life of Sutures.
Staples – I have just recently came into possession of a wound stapling gun and have not had a chance to learn about it. When I get around to it I will post on it.
If you have to close a wound in an emergency situation always remember that before closing wounds you need to be sure that the wound is properly cleaned. Knowing when to close cuts and lacerations is always a difficult decision for people who do not have a great deal of experience. If you close a deep cut, without proper cleaning you are setting the patient up to develop a infection.
Always find a experienced medical practitioner if possible.