What are the cutting instruments used in laparoscopic surgery?

The cutting instruments used in laparoscopic surgery mainly include the following:

Laparoscopic surgical scissors: This is a passive surgical instrument, usually made of stainless steel, with double edges and sharp cutting edges, mainly used for cutting and removing tissue.

Ultrasonic knife: The ultrasonic knife has the functions of separation, hemostasis, and cutting at one time, which can reduce the replacement of instruments and make the operation easier. It can also be used for hemostasis and cutting tissue.

Electrocoagulation cutter: This instrument integrates functions such as fine separation and electrocoagulation hemostasis, reduces the replacement of instruments during surgery, and improves surgical efficiency.

Linear cutting stapler: This instrument is suitable for separation, resection, and establishment of anastomosis, and is mainly suitable for open or minimally invasive general surgery, obstetrics and gynecology, urology, thoracic surgery, and pediatric surgery. Disposable linear cutting staplers are also widely used in thoracic surgery, abdominal surgery, and gynecological endoscopic surgery.

High-frequency electrocoagulation system: such as LigaSure vascular closure system, PlasmaKinetic plasma electroresection system and EnSeal tissue coagulation system. These devices combine the cauterization function of bipolar current with the instrument cutting function, and are suitable for wider tissue surfaces and larger blood vessels.

These cutting instruments play an important role in laparoscopic surgery, and can effectively cut and suture tissues, reduce surgical trauma and bleeding, and improve surgical results and patient recovery speed.

What are the specific types and application scenarios of ultrasonic knives in laparoscopic surgery?

In laparoscopic surgery, the specific types and application scenarios of ultrasonic knives are as follows:

Ultrasonic soft tissue cutting hemostatic surgical equipment: This type of equipment uses ultrasonic energy to promote hemostatic cutting and/or coagulation of soft tissues, and is suitable for the removal of various water-rich cell tissues. For example, in laparoscopic surgery, it can be used to remove gallbladders, appendixes, gastrointestinal tumors, etc.

Ultrasonic bone knife: This type of ultrasonic knife is mainly used for bone cutting surgery. Although it is not commonly used in laparoscopic surgery, it is also used in some cases where bone cutting is required.

Phacoemulsification suction knife: This type of equipment is mainly used for hepatobiliary tumor suction, which can emulsify tumor tissue through ultrasound to make it easier to remove.

High-frequency electrosurgical knife Y16-E: This is an ultrasonic device specifically used for laparoscopic surgery, which has the function of promoting hemostasis cutting and/or coagulation of soft tissue.

Ultrasonic knives are widely used in laparoscopic surgery, mainly including the following aspects:

Cholecystectomy: The ultrasonic knife can accurately remove the gallbladder, reducing postoperative bleeding and recovery time.
Appendectomy: When dealing with acute appendicitis, the ultrasonic knife can quickly and effectively remove the appendix and reduce the risk of infection.
Gastrointestinal tumor resection: The ultrasonic knife also has significant advantages in resecting gastrointestinal tumors, and can achieve high-precision cutting and coagulation.
Liver cutting: In liver surgery, the ultrasonic knife can be used for cutting liver parenchyma, reducing intraoperative bleeding and postoperative complications.
Ultrasonic knives are widely used in laparoscopic surgery, mainly for cutting and hemostasis of soft tissue, as well as bone cutting and tumor resection in specific cases.

What are the specific functions and advantages of electrocoagulation cutters in laparoscopic surgery?

The specific functions and advantages of electrocoagulation cutters in laparoscopic surgery are mainly reflected in the following aspects:

Multifunctionality: Electrocoagulation cutters can not only perform electrocoagulation hemostasis, but also electrocuting, and even include functions such as tissue grabbing, pulling and separation. This multifunctional design significantly improves surgical efficiency and reduces surgical time.

Precise control: Through the thermal effect of high-frequency current, the electrocoagulation cutter can accurately complete the cutting and coagulation of diseased tissues under the direct vision of the optical endoscope. This makes the surgical process safer and more controllable.

Less trauma and faster recovery: Compared with traditional open surgery, laparoscopic surgery has less trauma and less interference with abdominal organs due to its minimally invasive nature, so that patients can recover their gastrointestinal function faster after surgery.

Reduce complications: The use of electrocoagulation cutters helps reduce the occurrence of complications such as postoperative pain and infection. Because of its small amount of bleeding and small disturbance to abdominal organs, the intestinal function recovers faster after surgery, and complications such as intestinal adhesions and intestinal obstruction are also less.

Disposable, reducing the risk of cross infection: Electrocoagulation cutters are usually used in a disposable manner, which not only reduces the need for intraoperative instrument replacement, but also avoids performance degradation caused by repeated sterilization and use, while eliminating the risk of cross infection.

Humanized design: The control handle design of modern electrocoagulation cutters takes into account the convenience of the doctor's operation, making the operation process smoother and reducing the hand strain of the surgeon.

What are the scope of use and indications of linear cutting staplers?

Linear cutting staplers are a medical device widely used in multiple surgical fields, mainly used for tissue separation, resection and anastomosis during surgery. We can summarize its scope of use and indications as follows:

Scope of application:

Linear cutting staplers are suitable for various open or minimally invasive surgeries, including general surgery, obstetrics and gynecology, urology, thoracic surgery and pediatric surgery.
Specific to organs and parts, these staplers can be used for resection, transection and suturing of the stomach, intestines, lungs, esophagus, and respiratory tract.
In addition, they can also be used for separation and resection of the liver, gallbladder, pancreas, spleen, kidneys, and separation of related blood vessels.
In certain cases, such as digestive tract reconstruction and organ resection, it can also be used to close stumps or incisions.
Indications:

These staplers are particularly suitable for complex surgeries that require precise cutting and anastomosis, such as cutting and severing of the digestive tract, lung tissue and broad ligament of the fallopian tube, and suturing the tissues on both sides of the cut edge.
They can also be used for complex surgeries such as tube gastrectomy and wedge resection of the lung.
In minimally invasive surgery, linear cutting staplers combined with new guide molding technology can make suturing safer and more reliable.
Linear cutting staplers play an important role in modern surgery, especially in complex surgeries that require delicate operations.

What is the application effect and safety of high-frequency electrocoagulation systems (such as LigaSure, PlasmaKinetic, etc.) in laparoscopic surgery?

The application effect and safety of high-frequency electrocoagulation systems (such as LigaSure, PlasmaKinetic, etc.) in laparoscopic surgery are generally very good. The following is a detailed analysis:

Application effect:

Hemostatic effect: LigaSure has a significant hemostatic effect in laparoscopic surgery. For example, in laparoscopic radical resection of sigmoid colon and rectal cancer, LigaSure can effectively control the amount of bleeding. In addition, LigaSure not only has a good hemostatic effect in laparoscopic gastrointestinal surgery, but also has a good separation and anatomical function.
Operation time: The use of a high-frequency electrocoagulation system can shorten the operation time. For example, in laparoscopic partial hepatectomy, the combined use of ultrasonic scalpel and high-frequency electrocoagulation liver segmentation method, the average operation time is 126 minutes.
Safety:

Low complications: The application of high-frequency electrocoagulation system in laparoscopic surgery has very low complications. For example, in hysteroscopic surgery, the application effect of the bipolar circuit system is satisfactory, and the complications during and after the operation are extremely low.
High success rate: In many studies, the success rate of laparoscopic surgery using a high-frequency electrocoagulation system is very high. For example, in laparoscopic partial hepatectomy, 21 operations were successful, and none of them were converted to laparotomy due to bleeding.
Specific cases:

Hysterectomy: Among 80 cases of uterine fibroids undergoing laparoscopic hysterectomy, 40 cases used LigaSure, showing its superior application effect and safety.
Gastrointestinal surgery: In laparoscopic gastrointestinal surgery, LigaSure is widely used in operations such as colon cancer, rectal cancer, and gastric cancer, and has achieved good therapeutic effects.

What are the selection criteria and technical requirements for cutting instruments in laparoscopic surgery?

In laparoscopic surgery, the selection criteria and technical requirements for cutting instruments are key factors to ensure the safety, effectiveness and efficiency of the operation. The following are detailed selection criteria and technical requirements:

Scope of application and technical characteristics:

The cutting instrument should be compatible with the surgical system and be able to work with other surgical instruments to ensure smooth progress during the operation.
The technical characteristics of the instrument, such as cutting accuracy, cutting speed and cutting depth, should be considered to meet the needs of different operations.
Performance indicators:

The cutting instrument should have good cutting performance and be able to complete complex surgical tasks under minimally invasive conditions.
It should have high efficiency and high precision cutting capabilities to reduce operation time and improve the success rate of the operation.
Regulatory standards and normative documents:

The selected cutting instruments must comply with the requirements of relevant regulatory standards and normative documents to ensure their safety and effectiveness.
The reviewer should determine whether the specific content is applicable based on the characteristics of the specific product, and make additional requirements for the content of the registration application materials.
Sterile supply and disposable use:

The cutting instruments should be sterile and disposable to prevent cross infection.
Ease of operation:

The cutting instruments should be designed to be easy to operate and easy for surgeons to master and use, especially for beginners.
Performance indicators of system coordination:

The cutting instruments should work in conjunction with the entire surgical system (including endoscopes, operating forceps, etc.) to ensure efficiency and safety during the operation.
Principles of puncture point selection:

When performing laparoscopic surgery, it is also very important to choose a suitable puncture point, which directly affects the use effect of the cutting instrument and the success rate of the operation.