Huizhou Pengchengrui Technology Co., Ltd.

Nickel titanium alloy surgical suture is a new type of metal suture material that utilizes shape memory effect and super elasticity. Its core advantages are automatic pressure under body temperature to close the incision, small scars, and good biocompatibility. It is mainly used for intradermal cosmetic suture.

1、 Basic Structure and Principle

Composition: Composed of nickel titanium alloy wire (suture), medical suture needle (mostly 3/8 arc anti triangle needle), and thread clip, sterile packaging, disposable.

Core principle:

• Shape memory: Soft and bendable at room temperature, restored to a predetermined straight shape after implantation into the human body (37 ℃), generating sustained tension.

• Automatic pressurization: Tension pushes the skin on both sides of the incision to tightly fit, without the need for knots throughout the process. It adapts synchronously with the disappearance of edema, reducing scars.

• Super elasticity: The tensile strength is higher than that of steel wire, it is not easy to break, the surface is super smooth, and there is no cutting damage when removing the wire.

Nickel titanium alloy fiber

2、 Core advantages

（1）Excellent biocompatibility: The surface titanium dioxide layer blocks the precipitation of nickel ions, with no rejection, redness, swelling or itching. It is compatible with MRI and can be implanted for a long time.

（2）Fast healing and small scars: Continuous pressure promotes healing, shortening 1-3 days; Continuous intradermal suturing without pinholes significantly reduces scar hyperplasia.

（3）Low infection rate: The dense structure has no capillary adsorption and is not prone to residual bacteria, making it suitable for incisions on contaminated or seborrheic skin.

（4）Easy operation and suture removal: gentle and soft, easy to thread needles, S-shaped continuous suture is sufficient; Easy and painless suture removal, long incisions can be completed in one go.

3、 Clinical application scenarios

• Plastic surgery: cosmetic suturing of exposed areas such as the face and neck, with significant and seamless results.

• General surgery: soft tissue incisions such as abdominal and breast incisions, especially suitable for long incisions and tension reduction needs.

• Gynecology/Emergency Department: Cesarean section, traumatic tears, etc., with fast matching and healing.

• Other: Fine tissue suturing in cardiothoracic surgery, neurosurgery, and other fields.

Nickel titanium alloy fiber

4、 Limitations

• High cost: The material and processing costs are higher than traditional silk threads and absorbable threads.

• Technical requirements: Master the technique of S-shaped intradermal suturing to avoid pinching the alloy wire.

• Nickel allergy risk: extremely low probability, preoperative inquiry of metal allergy history is required.

5、 Specifications and Key Points for Use

Common specifications: 3-0, 4-0, 6-0 (wire diameter), length 280-400mm, suitable for different incision lengths.

Operation points:

-Intradermal S-shaped continuous suture, the needle insertion point must be moved forward, and needle retraction is strictly prohibited.

-Do not clamp the alloy wire or needle wire connection to avoid breakage.

-Fix the end with a clip, cut off the suture needle, and directly extract the suture thread after healing.

Nickel titanium alloy suture thread has become the preferred choice for beauty and fine suturing due to its automatic compression, low scarring, and high compatibility, especially suitable for areas with high aesthetic requirements. Although the price is relatively high, the comprehensive healing quality and complication control make the cost-effectiveness outstanding.

The nickel titanium alloy surgical sutures produced by Huizhou Pengchengrui can be as thin as 0.04mm. The application of nickel titanium memory alloy sutures in medicine helps to reduce the risk of hospital acquired infections and improve surgical safety.