Built-in pneumoperitoneum-free operating field forming device

Abstract

The invention relates to a built-in pneumoperitoneum-free surgical field forming device. The built-in pneumoperitoneum-free surgical field forming device comprises a first end part and a second end part which are opposite to each other and communicate with each other, and is configured to at least have a first structure and a second structure: under the first structure, the built-in pneumoperitoneum-free surgical field forming device is in a contraction form, and at least the first end part is suitable for passing through the surgical incision to enter in and exit from the sick body; under the second structure, the built-in pneumoperitoneum-free surgical field forming device is in the hollow expansion shape, so that the surgical field and the surgical operation channel are provided, moreover, the cross section of the built-in pneumoperitoneum-free surgical field forming device is in transition change from the first end part to the second end part along the axial direction, and the cross sectional area of the first end part is larger than the cross sectional area of the second end part. The built-in pneumoperitoneum-free surgical field forming device has the advantages that the manufacturing and assembly are easy, the operation is easy and convenient, the practicability is strong, the safety and reliability as well as the stability are good, etc.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a built-in pneumoperitoneum-free operating field forming device. Background technique [0002] Compared with traditional surgical methods, minimally invasive surgery has outstanding advantages such as small trauma, light tissue damage, short operation time, and fast recovery. Widely welcomed by patients. However, there are still some shortcomings in the existing minimally invasive surgery. [0003] For example, for existing laparoscopic operations such as appendectomy, cholecystectomy, and intrahepatic bile duct cystadenoma resection, the operation is usually established by means of pneumoperitoneum and body position changes. Although pneumoperitoneum can provide a relatively sufficient surgical space for minimally invasive surgery, thereby helping to ensure the smooth progress of the operation, unfortunately, pneumoperitoneum can easily cause subcutaneous emphysema...

AI Technical Summary

Problems solved by technology

Although pneumoperitoneum can provide a relatively sufficient surgical space for minimally invasive surgery, thereby helping to ensure the smooth progress of the operation, unfortunately, pneumoperitoneum can easily cause subcutaneous emphysema, mediastinal emphysema, and pneumothorax. , gas embolism, hypercapnia and acidosis, shoulder pain, cardiac arrhythmia, deep vein congestion and thrombosis of the lower extremities, intestinal paralysis, abdominal organ ischemia and other side effects, in addition, the elderly and patients with cardiopulmonary insufficiency are not suitable Suitable for laparoscopic surgery with pneumoperitoneum, thus limiting its wider clinical application

For this reason, people invent various suspension type devices to carry out laparoscopic operation without pneumoperitoneum, but these existing suspension type pneumoperitoneum free devices also have disadvantages in safety, effectiveness, etc., which mainly include two Aspects: First, the operation process will cause some damage to the patient’s abdominal wall tissue, causing or increasing postoperative abdominal pain, and affecting postoperative recovery; The abdominal walls on both sides move toward the center, thereby squeezing the intestinal tube and pushing the viscera toward the center, resulting in a narrow exposure space, especially when the muscle tension is high, the surgical instrument channel, operating space and operative field will be significantly reduced. Makes the surgical exposure space worse

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