Retractable negative pressure suction type heart fixator for minimally invasive surgery and using method

Abstract

The invention relates to a retractable negative pressure suction type heart fixator for minimally invasive surgery and a using method, and belongs to the technical field of cardiothoracic surgery. A retractable negative pressure suction fixing head is connected with a metal connecting tube, the metal connecting tube is connected with a rotary wrench and a support, a negative pressure suction tubeis inserted into the rotary wrench, one end of the negative pressure suction tube is connected with a three-way valve, the negative pressure suction fixing head is internally connected into the metalconnecting tube, and a conveying device is located in an inner cavity of the metal connecting tube and an inner cavity of the rotary wrench. A medical silica gel soft body wraps a V-shaped tube, and anegative pressure suction hole is formed in the front end of the V-shaped tube. Through a minimally invasive conveying tube with the diameter not larger than 8 mm, the contractible heart fixing headis conveyed to the surface of tissue needing to be fixed in surgery, the sternum integrity is guaranteed, and therefore postoperative pain, incision infection and other complications are obviously reduced; operation bleeding is little, and conventional blood transfusion is even not needed after operation; the influence on cardiopulmonary functions is small, and the recovery is fast; and operationdamage is smaller, recovery is faster, and meanwhile operation time is greatly saved.

Description

technical field [0001] The invention relates to a retractable negative pressure suction heart fixer for minimally invasive surgery and a use method thereof, belonging to the technical field of cardiothoracic surgery. Background technique [0002] In recent years, cardiac surgery technology has been constantly undergoing updates and iterations, and medical devices have also been rapidly improved and innovated; cardiac surgery, especially heart beating coronary artery tower bridge surgery, has developed rapidly, thus avoiding the Adverse consequences of off-pump bypass and cardiopulmonary bypass on patients. [0003] In conventional beating heart coronary artery bypass surgery, the heart fixator is fixed on the sternal retractor, and the surgeon cuts the sternum along the midline of the patient's chest to expose the chest cavity, expose the heart, and perform heart surgery. This method requires complete resection. The patient's sternum is opened, and the wound is about 20-25c...

AI Technical Summary

Problems solved by technology

[0003] In conventional beating heart coronary artery bypass surgery, the heart fixator is fixed on the sternal retractor, and the surgeon cuts the sternum along the midline of the patient's chest to expose the chest cavity, expose the heart, and perform heart surgery. This method requires complete resection. The patient's sternum is opened, and the wound is about 20-25cm, with an average of 24cm; after the heart is exposed, the surgical area needs to be selected according to the different congested parts of the coronary arteries; former physique

With the development of coronary artery hybrid technology HCR technology, small incision cardiac surgery is gradually developed and applied in clinical practice. During cardiac surgery, the left internal mammary artery and anterior descending artery are completed by a cardiac fixator suitable for rib incision. For anastomosis, the incision is only made at the position of the chest and ribs of the patient. The incision is about 10-13cm, with an average of 12cm. This small incision heart surgery is very conducive to the postoperative recovery of the patient. The heart fixer used in clinical practice today is large in size and inflexible in movement. For routine cardiac surgery only

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