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  • Why choose a stent?
    The placement of this type of laryngeal or tracheal prosthesis is a short, minimally invasive, atraumatic and simple implantation procedure. In many cases it can be a therapeutic alternative to avoid surgery, for example for laryngeal paralysis in elderly dogs to improve their quality of life.
  • When is it advisable to place a silicone stent?
    laryngeal stenosis tracheal collapse laryngeal paralysis smooth surface tumour squamous cell carcinoma paroxysmal form of dyspnoea attacks
  • Why are there so many models of stents?
    Because each veterinarian must choose the device that best suits his or her patient’s case.
  • How to know the appropriate diameter of a stent?
    The choice of prosthesis diameter would be based on the endotracheal tube that the professional places, and we suggest estimating 20% more. This measure would be based on the choice of the largest endotracheal tube. It is very common to underestimate the diameter of the tube to be used, so it is advisable to have several diameters available at the time of the intervention. Also, it should be considered that being a minimally invasive procedure makes the prosthesis removable without damage, so if a diameter error is made, it can be easily changed. A simple way to estimate the approximate diameter is to measure the animal’s muzzle, as shown in the photo:
  • Can anyone place a stent?
    No, it is not possible. It is necessary that the introduction of the stent be carried out by trained personnel and specialists.
  • What happens when the stent is placed?
    Our stents are inserted folded and self-expand when released in the affected area. As they expand, they provide more light, allowing air to circulate inside them. In some cases the practitioner may decide to place a few stitches to secure the stent in place.
  • How is the size of a stent determined?
    For determining the measure, a bronchoscope or tracheoscope would be fine, and is the common instrument the physicians have in their human interventional facilities. But anything that helps you for comparison is good too. For example: a forceps or a catheter. The maneuver to determine the length of the stent would be: putting the extreme of the object in the distal end of the injury, mark the object, move the object to the proximal end, mark the object again, measure the distance between the 2 marks, pick a stent that exceeds that length in about 10mm (5mm before the injury and 5 mm after the injury). To determine the diameter of a bronchoscope or tracheoscope are very good too, but any object that you know the diameter and is approximate to the animal larynx or trachea diameter is also good. Even a forceps, that you can open inside the injury, remove without changing and then measure the size of that opening.
  • Is it essential to use fluoroscopy for stent introduction?
    No, it is not required. Normally, inserting the stent by clamping it with a forceps is sufficient. Each professional has his or her own technique, but in veterinary medicine in particular, stent insertion is much simpler than in humans.
  • What material is the stent made of?
    All our devices are made of medical grade silicone. They can be transparent in case the veterinarian wishes to visualise the tissues through the device, or radiopaque in case he/she wishes to perform radiographic controls. We are an ISO13485/2016 certified company (medical device manufacturing) and apply the same quality standards to the manufacture of our entire veterinary line.
  • How often is a stent changed?
    It is advisable to do this every three months. But the final decision is at the discretion of each professional and the evolution of the patient. Success story: Stent implanted for 10 years
  • What is the purchasing procedure like?
    You must provide us with all this complete information: full name, address, identity document or passport (or if it is a company, all its details). With this information we will proceed to send you the proforma invoice. Once you make payment via bank transfer or credit card with PayPal, the device is shipped. The device is shipped by private mail (UPS/DHL) and a tracking number will be provided so you know when the stent will arrive. The time we take for dispatch is 24 business hours from when we have all the shipping and payment information. Then the delivery time depends on each company that provides the service, but it is usually from a few days to no more than approximately a week.
  • Is it possible to help a small dog with a collapsed trachea with your stents?
    The working principle of the stent is really simple and has been used in humans for several decades. It is simply a tube made of a medical grade material (silicone in our case) that exerts an inside-out force that opens a stenosis. The question is to determine the correct size (diameter and length). Another issue in humans is the implant, because doctors have to have the right instruments. This is much quicker, simpler and safer for animals, which, depending on the veterinarian's preference, only need one or two clamps:
  • What happens once implanted?
    Once implanted, it is common to see in animals that the Vet makes one or two stitches to fix the device and prevent migration or expulsion by coughing: In this last picture, you can see that the stent is fixed with two stitches, but also has been cut by the Vet to adjust length. This can also be done. It is not the perfect scenery but helps in urgencies until you find the correct length device. When cut, the sharp cut edges of the devices increase the formation of granulomas, but it is fine to gain some time for having the animal breathing normally until you get the correct size. Depending on the animal’s health, some Vets think that the formation of granulomas it’s a lesser evil because the tissues growing at the ends helps fix the device in its place. 
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