Animal Surgery and Care Products Q&A FAQ

1. Can German FST surgical instruments be used clinically? How to choose a surgical instrument?

A: Not for clinical use. There are more than 1000 kinds of surgical instruments, and each type of surgical instruments has different specifications (such as length, thickness, etc.), and can confirm with the customer what experiments (such as cutting the tissue, what part to clip, etc.).

2. What is a trinocular microscope? What are the commonly used trinocular image recording devices? How to choose a microscope?

answer:

(1) The trinocular microscope is used for external computers or digital cameras in addition to the two eyes for binocular observation. It also constitutes a computer type (biological/metallographic) microscope and a digital microscope, which are widely used in biology. Research in cytology, histology, medicinal chemistry, etc.

(2) Commonly used trinocular microscope image recording equipment includes cameras, digital cameras and digital cameras.

(3) First, we need to confirm what kind of animal surgery experiments our customers do, how high the working distance is needed (the distance between the objective lens and the object), how much magnification is needed, whether it needs to take pictures or video, whether the light source or the eyepiece is needed, whether Need to have a scale, some users also need to place other instruments under the microscope, such as locators, and users need to import or domestically, etc.. After confirming the above problems, you can configure according to the microscope configuration uploaded by the OA system. .

(Note: total magnification = eyepiece x objective x auxiliary mirror; auxiliary mirror can change working distance and magnification)

3. What are the classifications and materials of the dice?

answer:

Classification (general grade, Biology, Medical): Dumont scorpion is the world's finest cutting-edge scorpion, widely used in medical, beauty, laboratory and other aspects, of which medical care accounts for 50% of the market. The classification of the scorpion indicates that the Biology model is generally a precision scorpion; the sharpness of the scorpion is expressed by two parameters: width and thickness. For example, the sharpness of the ordinary scorpion is 0.10 mm Width × 0.06mm Thickness, while the sharpness of the 5th scorpion indicating Biology may be 0.05mm Width × 0.01mm Thickness.

Material:
SA: This refers to low carbon austenitic steel, non-magnetic, high corrosion resistance and high strength. It is made of this material made by EMS brand ordinary tweezers.
NC: This refers to Nickel-Chromium-Molybdenum alloy steel, nickel-chromium-molybdenum alloy steel, which has good chemical resistance, can withstand high temperature up to 800 °C, completely non-magnetic, anti-fatigue performance, high deformation, recommended fine operation Money.
TA (Titanium alloy): This refers to titanium alloy steel. The relatively low density makes the tweezers lighter, has better mechanical properties, is very resistant to corrosion, and is non-magnetic. For users of high temperature corrosive environments, tweezers made of this material are recommended.
AL (Aluminum alloy): This refers to aluminum alloy steel, low density, high electrical conductivity, good thermal conductivity, excellent corrosion resistance in normal environment, often used to make the handle of the tweezers.
TE (PTFE coating): This refers to Teflon coating, scratch resistance, non-sticky object, good insulation performance, high strength and corrosion resistance, and can be used continuously at 150 °C.
MZ (Ceramic zirconia toughened alumina): This refers to zinc oxide aluminum ceramics, non-polar, particularly strong hardness, heat resistance, insulation, and general corrosion resistance.
Inox: refers to a chrome alloy stainless steel, magnetic, more flexible than ordinary carbon steel, antifouling

Dumoxel: refers to a very popular alloy, often made of tweezers, which has higher antifouling and corrosion resistance than Inox. The tip of the tweezers made of this alloy is flexible, non-magnetic and has high temperature tolerance. .
Dumostar: This alloy is a mixture of steel, chromium, nickel and cobalt. It has unparalleled performance: fatigue resistance, high hardness, high temperature resistance (550 ° C), seawater corrosion resistance, acid and alkali resistance ( Hydrochloric acid, phosphoric acid, nitric acid, sulfuric acid), which is a hazelnut material with the best operating performance to date.

Note: These three materials are often found in FST surgical instruments and can be used as a reference for answering customers.

4. How to choose the most suitable dice based on your research?

The scorpion was used in experiments for different occasions, such as microscopic anatomy of tissues and organs, tissue processing in electron microscopy, and the like. Common miniature tweezers have different sizes, shapes, and materials. Choosing the most suitable tweezers depends first on the size of the object you are trying to capture (the size of the animal, the size of the tissue or organ, etc.). Secondly, the cleanliness achieved by the experiment, that is, the way your tweezers are cleaned and disinfected, determines the material of the tweezers.

For example, you need steam sterilization, using mice under the microscope, stainless steel tip, of course, titanium, Dumostar, INOX, and Dumoxal are good choices.

If your scorpion needs to constantly operate in the water, please don't choose the carbon steel rafter. If it is not properly maintained, the carbon steel scorpion will easily rust in the water for a long time.

It is recommended to use carbon steel for the tweezers that must be in contact with the flame. Because carbon steel is not easily damaged at high temperatures, the instantaneous high temperature damages the tweezers of many materials, which makes the metal soft and brittle and reduces the service life of the tweezers.

Some tweezers have been treated with a surface that has two common mirror finishes and matte finishes. The choice between the two depends on personal preference, and there is no difference in the quality of the two. The mirror finish is smoother and smoother. When used, the matte finish is less prone to smudging and it is less likely to slip off.

5. Can the FST drill be used with our cranial drill?

A: Yes, the diameter of the drill rod is 2.3mm ± 0.1mm

6. In animal surgery experiments, I often hear the terms "ophthalmic scissors" and "ophthalmology", then what is "eye scissors" and "ophthalmology"? What are their characteristics and what are their main uses?

Answer: (1) Ophthalmic scissors: also known as ophthalmic surgical scissors or ophthalmic surgical scissors. It is used for cutting eyelid tissue in facial plastic surgery. It can be divided into straight pointed and straight round (blunt) according to the shape of the head. Head, curved tip, rounded (blunt) head a total of 4 kinds, the length is generally 9-11cm range, but commonly used 10cm; ophthalmic scissors head is small, the tip of the tip is about 0.4mm wide, sharp and not sharp, round The tip of the head is about 1.6 mm wide. Under normal conditions, the straight head is used to cut the surface tissue, the elbow is used to cut deeper tissue or used as a separation, and the tip is used for fine shearing, modification and puncturing of soft tissue. The round head is used for shearing and blunt separation.

(2) Ophthalmology: It is a device for holding soft tissues of the eye in the clinic. According to the head form: there are 4 kinds of straight teeth, curved teeth, straight 1x2 teeth (hooks), and 1x2 teeth (hooks). The head of the ophthalmology is small and round, and the inner surface of the head is a thin, shallow dome with a tooth pitch of about 0.5 mm and a tooth depth of about 0.25 mm. Under normal conditions, the straight head is used to hold the soft tissue of the surface, and the elbow is used to hold the deeper soft tissue.

In animal surgery experiments, ophthalmic scissors and ophthalmology are mainly used to shear, separate or modify small soft tissues, and are also used under a microscope.

7. What is the difference between a toothed needle clamp (vascular clamp or forceps) and a toothless needle clamp (vascular clamp or forceps)?

A: Toothed needle holders are generally used to hold the needles during suturing, while the toothless needle holders are generally used to hold the sutures; the toothed vascular clamps or forceps hold the tissue more firmly and are not easy to slip off. However, it has certain damage to the tissue and is suitable for hard tissue or tough tissue, such as skin, fascia, scar, etc., and the toothless vascular clamp or forceps are suitable for holding relatively brittle tissues or blood vessels, such as blood vessels, Nerve, mucosa, etc.