Veterinary laser therapy machine for Accelerated Postoperative Wound Healing in Veterinary Medicine

I. Principle and Advantages of Laser Wound Treatment

According to clinical statistics, the incidence of postoperative incision healing disorders in pets reaches 18%-22%, especially in complex surgeries such as orthopedics and abdominal operations. Due to large deep tissue trauma, poor local blood supply, and pets licking or scratching, the healing period is often prolonged, and the risk of infection increases sharply.
Traditional treatment methods mostly rely on antibiotics to prevent infection and ointments to promote healing. In severe cases, secondary suturing is required. Although this method can control infection, it easily leads to antibiotic resistance, and frequent dressing changes may cause secondary injury. The healing speed is relatively slow and more suitable for mild wound care, but its effect on complex wound repair is not as good as high-power laser therapy.
High-power laser-assisted postoperative incision repair uses photobiomodulation effects, emitting lasers in the 650-980nm wavelength range with a penetration depth of 10-15cm, directly reaching deep tissues, stimulating mitochondria in cells to produce ATP, accelerating cell division and metabolism, promoting angiogenesis and improving blood supply. It can effectively inhibit inflammatory reactions, reduce redness, swelling, exudation, and other conditions. Non-contact irradiation and simple equipment operation can greatly reduce the stress risk for pets, especially suitable for weak or uncooperative pets after surgery. It shortens the postoperative incision healing time by an average of 40%, reduces scar hyperplasia by 50%, and lowers infection rates by 65%, providing a safe and efficient new option for pets’rapid postoperative recovery.
Therefore, high-power laser-assisted postoperative incision treatment can help pet hospitals improve surgical quality and turnover rates, enhance reputation and income, reduce owners’ nursing pressure, improve pets’ postoperative quality of life, and achieve mutual benefits for all parties.

II. Indications and Treatment Effects

2.1 Indications
2.1.1 Superficial Incisions (Dermal Layer Injury)
After skin incision or superficial tissue suture, the laser can promote epithelial cell proliferation and collagen fiber synthesis, reduce scar width by 25-30%, and shorten the healing period by 2-3 days compared with traditional care.
2.1.2 Deep Tissue Incisions (Muscle/Fascia Layer Injury)
For surgical incisions involving muscles, fascia, and other deep tissues, the laser can improve local blood circulation, reduce inflammatory reactions, promote granulation tissue growth, and lower the risk of deep infections and scar hyperplasia. The tensile strength of the incision reaches 60% of normal tissue 7 days post-operation, shortening the healing period by 3-5 days compared with traditional care.
2.1.3 Chronic Infected Non-healing Incisions (Purulent Exudation/Necrotic Tissue)
For mild infection or delayed healing, the laser can improve the healing environment through analgesic and anti-inflammatory effects, enhance cellular repair ability, reduce antibiotic dependence, and lower recurrence risk. After three treatments, the amount of purulent exudate decreases by 70%, and the time for odor to disappear is shortened to 4-5 days. Necrotic tissue shedding time is 3 days earlier than conventional debridement, and combined with laser therapy, the antibiotic course can be reduced by 50%.

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III. Contraindications
2.2.1 Absolute Contraindications
① Malignant tumor sites: The mechanism of laser irradiation on different tumors is not yet clear. Studies have shown contradictory results of promoting or inhibiting growth, so irradiation of malignant tumors is prohibited, especially photosensitive tumors such as melanoma.
② Hemorrhagic wounds or coagulation dysfunction: Laser irradiation can promote blood circulation and aggravate bleeding. Bleeding must be controlled before considering laser treatment.
③ Uncontrolled wound infection: If the wound has purulent secretions, severe redness, swelling, heat, pain, and has not been debrided or treated with antibiotics, the laser may mask infection symptoms or cause inflammation to spread.
④ Wounds on the eyeball and surrounding tissues: High-power lasers may damage the retina or cornea, so irradiation of areas near the eyeball on the head and face should be avoided.
⑤ Abdominal wounds of pregnant animals: Laser irradiation may potentially affect embryo development, so irradiation should be avoided.
⑥ Growth plates of juvenile animals with unclosed epiphyses: Direct irradiation of the epiphysis may interfere with cartilage cell differentiation and affect normal bone development, especially in young dogs and cats. The long bone ends should be avoided.
⑦ Areas near implanted electronic devices: For example, cardiac pacemakers, cochlear implants, etc. The laser may interfere with device function or pose safety hazards.

2.2.2 Relative Contraindications (To be determined according to clinical judgment)
① Areas with skin sensory disorders: For numb areas caused by nerve damage, animals cannot feel pain, which may cause secondary injury due to laser overheating.
② Animals or diseases sensitive to light: Such as certain hereditary photosensitivity disorders, which may cause skin allergies or worsen symptoms.

2.3 Risk Warnings for Special Scenarios (To be determined according to clinical judgment)
2.3.1 Wounds extending to body cavities or organs:
For example, open abdominal wounds should first be treated with surgical suturing, and the laser can only be used as an auxiliary means for superficial postoperative repair.
2.3.2 Large area burns (3rd degree):
The laser does not directly remove necrotic tissue. Debridement and skin grafting are required first, and the laser can be used later to promote the healing of new skin.
2.3.3 On or near metal implants:
For example, internal fixation plates for fractures. Laser irradiation of metal may generate thermal effects or reflections, damaging surrounding tissues, so metal implant areas should be avoided.
2.3.4 Areas with dense hair or heavy pigmentation:
Hair or melanin may absorb laser energy, causing local overheating. Hair should be shaved first and the energy density reduced.

IV. Parameter Recommendations

V. Treatment Steps

4.1 Pre-treatment Preparation
4.1.1 Wound and Animal Assessment

① Wound examination: Confirm incision type (superficial/deep), healing stage (inflammatory, proliferative, remodeling), presence of infection (redness, swelling, exudate, odor), or necrotic tissue to ensure it meets indications.
② Animal condition check: Confirm animal’s weight, age, overall health (e.g., liver and kidney function, coagulation function), presence of contraindications, and assess stress response level.

4.1.2 Environment and Equipment Preparation
① Environment: Choose a quiet, dimly lit space, avoid frequent personnel movement or noise disturbance, and keep room temperature appropriate.

Therapeutic equipment：veterinary laser therapy machine
② Equipment debugging: Check whether the laser treatment equipment and functions are normal.

Equipment：Fotonmedix

4.1.3 Animal and Wound Pretreatment
① Hair trimming: Part the hair around the incision or shave appropriately (especially for dark-colored fur) to fully expose the treatment area.
② Wound cleaning: Gently wipe the incision surface with normal saline to remove foreign objects, scabs, or small amounts of exudate, keep dry, and avoid using alcohol-containing disinfectants.
③ Restraint and protection: Properly restrain the animal (e.g., using a restraint table, towel wrap, or sedatives), have operators, assistants, and the patient wear laser protective glasses. If the owner is present, remind them to avoid direct laser exposure.

4.2 Treatment Irradiation
Keep the non-contact treatment head perpendicular to the skin, maintain an appropriate distance from the wound for irradiation, and slowly move the treatment head along the long axis of the incision. Observe the pet’s response. If there is discomfort, reduce laser power or pause irradiation. During irradiation, you can gently touch the skin around the incision by hand. If the temperature is noticeably rising, reduce power or increase movement speed to prevent thermal injury.

4.3 Post-treatment Care
4.3.1 Wound Handling and Protection

① Cleaning and disinfection: If necessary, bandage or cover the incision. If needed, apply healing-promoting ointments (e.g., growth factor gel).
② Wearing an Elizabethan collar: Prevent the animal from licking or scratching the incision, especially cats, dogs, and other animals prone to self-injury. Continue wearing it until the incision is fully healed.

4.3.2 Observation and Recording
Observe whether the incision shows increased redness, bleeding, or abnormal animal behavior (e.g., loss of appetite, drowsiness) within 30 minutes after treatment to detect allergic or stress reactions in time. Record daily incision changes (e.g., degree of redness reduction, exudate amount, scabbing condition), take photos to compare healing progress, and if there is suppuration, odor, or healing stagnation, immediately adjust the treatment plan or consult the manufacturer.

4.4 Handling Abnormal Situations
① Infection aggravation: If the incision exudate increases or there is purulent secretion, immediately stop laser treatment, perform debridement, and use antibiotics.
② Skin burns: If local erythema or blisters appear, apply a cold compress and burn ointment, and adjust follow-up treatment parameters (reduce power or shorten duration).
③ Animal stress: If the animal struggles violently during treatment, pause the operation and use sedation or switch to low-intensity laser/fractional treatment to reduce stress response.

VI. Vimile Treatment Cases