Gas-injection thrombosis-removal device and application thereof

A technology of air injection holes and air injection channels, applied in the field of medical devices, can solve the problems of increased bleeding risk and hemorrhage of patients, and achieve the effect of large thrombolytic effect, reduction of side effects and uniform force.

Active Publication Date: 2013-09-11
GENERAL HOSPITAL OF PLA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The side effects of the above anticoagulant and thrombolytic drugs in the process of removing throm

Method used

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  • Gas-injection thrombosis-removal device and application thereof
  • Gas-injection thrombosis-removal device and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Below in conjunction with the accompanying drawings, the air jet embolism removal device of the present invention will be further described.

[0024] The air jet thrombus removal device of the present invention comprises: thrombolysis catheter 1, guide wire 2, suction pump 3 and gas pump 4, wherein thrombolysis catheter comprises two passages, and the outer passage is suction passage 17, and its diameter is 8F, and inner The channel is an air jet channel 18 whose diameter is 4F, the suction channel 17 and the air jet channel 18 are coaxial, and there is a guide wire 2 in the air jet channel. The total length of the thrombolytic catheter is 120 cm, and the effective part for removing thrombus is at the front of the thrombolytic catheter. In the range of 0.5-10 cm in front of the thrombolytic catheter, there are jet holes 11 with a diameter of 0.5 mm. On both sides of the duct, the number of jet holes on each side is 5. Suction holes 12 with a diameter of 1.5 mm are dist...

Embodiment 2

[0028]The air jet thrombus removal device of the present invention comprises: thrombolysis catheter 1, guide wire 2, suction pump 3 and gas pump 4, wherein thrombolysis catheter comprises two passages, and the outer passage is suction passage 17, and its diameter is 8F, and inner The channel is an air jet channel 18 whose diameter is 5F, the suction channel 17 and the air jet channel 18 are coaxial, and there is a guide wire 2 in the air jet channel. The total length of the thrombolytic catheter is 120 cm, and the effective part for removing thrombus is at the front of the thrombolytic catheter. In the range of 0.5-10 cm in front of the thrombolytic catheter, there are jet holes 11 with a diameter of 0.6 mm. On both sides of the duct, the number of jet holes on each side is 5. Suction holes 12 with a diameter of 1.6 mm are distributed in the range of 0.5-10 cm in front of the thrombolysis catheter. The suction holes 12 are distributed on both sides of the thrombolysis catheter...

Embodiment 3

[0030] The air jet thrombus removal device of the present invention comprises: thrombolysis catheter 1, guide wire 2, suction pump 3 and gas pump 4, wherein thrombolysis catheter comprises two passages, and the outer passage is suction passage 17, and its diameter is 8F, and inner The channel is an air jet channel 18 whose diameter is 5F, the suction channel 17 and the air jet channel 18 are coaxial, and there is a guide wire 2 in the air jet channel. The total length of the thrombolytic catheter is 120 cm, and the effective part for removing thrombus is at the front of the thrombolytic catheter. In the range of 0.5-10 cm in front of the thrombolytic catheter, there are jet holes 11 with a diameter of 0.6 mm. On both sides of the conduit, the number of air jet holes on each side is 8. Suction holes 12 with a diameter of 1.6 mm are evenly distributed within the range of 0.5 to 10 cm in front of the thrombolysis catheter. The suction holes 12 are distributed on both sides of the...

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Abstract

The invention discloses a gas-injection thrombosis-removal device and application thereof. The gas-injection thrombosis-removal device comprises a thrombolysis catheter, a guide string, a gas pump and a suction pump. Gas-injection holes and suction holes are distributed on the front portion of the thrombolysis catheter, the gas-injection holes are communicated with gas injection channels, the suction holes are communicated with suction channels, and gas supplied by the gas pump is carbon dioxide. The gas pump fills gas into the gas injection channels in a high-frequency pulse manner, the gas is rapidly injected from the gas injection holes to smash thrombosis to be easily sucked out or to become loose to be quickly dissolved by thrombolysis medicines.

Description

technical field [0001] The invention relates to a medical device, in particular to an air jet thrombus removal device. Background technique [0002] Venous thrombosis (VTE) refers to a disease in which acute non-suppurative inflammation occurs in veins and secondary thrombosis occurs under the conditions of sluggish venous blood flow, blood hypercoagulability, and vascular intimal injury. It includes pulmonary thromboembolism and deep vein thrombosis. Foreign data show that its incidence rate is the third among cardiovascular system diseases, second only to coronary heart disease and stroke. The vast majority of venous thrombosis occurs in the deep veins of the pelvis and lower extremities. It is more common in patients with major surgery or trauma, long-term bed rest, limb immobilization, and advanced tumors. [0003] Deep venous thrombosis (DVT) is a common clinical disease. After deep venous thrombosis of the lower extremities, local persistent pain occurs in the affect...

Claims

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Application Information

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IPC IPC(8): A61B17/22
Inventor 刘凤永王茂强段峰郭丽萍樊庆胜宋鹏王燕阎洁羽
Owner GENERAL HOSPITAL OF PLA
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