Negative pressure suction device

Abstract

The invention relates to the technical field of medical apparatus and instruments, and discloses a negative pressure suction device. The negative pressure suction device comprises a handheld negativepressure controller, a blood storage bag and a connecting pipe, wherein the connecting pipe is provided with a first branch pipe, a second branch pipe and a third branch pipe; the handheld negative pressure controller is in sealing connection with the first branch pipe; the blood storage bag is in sealing connection with the second branch pipe; the third branch pipe is in sealing connection with aguide pipe; a sealed suction cavity is formed among the handheld negative pressure controller, the blood storage bag and the guide pipe; the handheld negative pressure controller is used for formingnegative pressure in the suction cavity to suck out thrombi and/ or blood through the guide pipe; and the blood storage bag is used for collecting the thrombi and/ or blood which can be sucked out. Byuse of the embodiment of the invention, a doctor can carry out handheld operation and control, in addition, continuous suction can be realized through a repeated operation, thrombus taking efficiencyis high, meanwhile, the blood can be recovered in a thrombus suction process to protect a patient from excessive hemorrhage, and in addition, other complications are avoided.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a negative pressure suction device. Background technique [0002] Vascular disease has become the number one fatal disease in my country, and vascular embolism has become the main cause of death in vascular disease. At present, the total number of new patients with ischemic stroke, pulmonary embolism and lower extremity venous embolism exceeds 5 million each year. [0003] At present, interventional thrombectomy in medicine has gradually become an effective method recommended by the mainstream in the treatment of vascular embolism. Interventional thrombectomy has many advantages, such as less trauma, shorter postoperative recovery time, fewer post-treatment complications, and better surgical results, and is more acceptable to patients. In the current catheter thrombectomy process, doctors usually use a suction pump as a negative pressure providing device to achieve ...

AI Technical Summary

Problems solved by technology

However, the use of suction pumps has many limitations, such as the high cost of equipment, which some hospitals cannot accept; the equipment is large in size, which is not conducive to carrying operations; the negative pressure provided by the equipment cannot be accurately controlled by the operator, etc.

Therefore, many doctors are more willing to use ordinary syringes during the operation to provide a certain negative pressure for the inner cavity of the catheter through the suction of the syringe. For aspiration, it is necessary to disconnect the syringe from the catheter and then reset the position of the syringe. After reconnecting, a second suction can be performed, which will waste a lot of time and prolong the operation time unnecessarily, especially for patients with long thrombus length. , the thrombectomy efficiency will be extremely low

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