Auxiliary measuring device for inferior vena cava filter implantation

Abstract

The invention discloses an auxiliary measuring device for inferior vena cava filter implantation. The device comprises a bracket, the bracket comprises a rotating reference member, a first support arm, a second support arm and an ultrasonic probe connecting seat, and the rotating reference member is used for fitting a body surface ofa joint point of a left iliac vein and a right iliac vein; the first support arm is provided with a first scale mark, and one end is connected to the rotating reference member; the second support arm is provided with a second scale mark, and one end is rotatably connected to the first support arm by the rotating reference member; the ultrasonic probe connecting seat is connected to the first support arm when the first support arm is disposed along the inferiorvena cava. The auxiliary measuring device for the inferior vena cava filter implantation has a support arm system which is approximately parallel to an inferior vena cava system on the body surface, and the approximate distance of the filter is inferred by the scale of the support arm system, thereby improving the probability of successful implantation of the filter infront-end emergency areas.

Description

technical field [0001] The invention relates to a medical device, in particular to an auxiliary measuring device for implanting an inferior vena cava filter. Background technique [0002] Lower extremity trauma is the most common injury in battlefield injuries, and acute pulmonary embolism caused by lower extremity combat trauma is one of the most fatal complications. Cheng Changzhi et al. retrospectively analyzed The pathological and anatomical data of the lower extremity war trauma cases and death cases showed that acute pulmonary embolism was the second cause of death in the extremity war trauma cases after acute renal failure, accounting for 20%. Therefore, how to prevent the occurrence of acute pulmonary embolism after war trauma in the lower extremities is an urgent research topic in the field of war trauma. [0003] Known methods to prevent pulmonary embolism caused by acute lower extremity venous thrombosis include drug prevention and device prevention. Drug preven...

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Problems solved by technology

[0004] Obviously, the position of the filter needs to be monitored throughout the process of implantation. In the prior art, a combination of angiography and ultrasonic testing is used to confirm the position of the filter throughout the process. At the scene of the car accident, the digital subtraction angiography machine could not be installed. At this time, the doctor had to rely on portable ultrasound to implement the filter insertion. At this time, due to the individual differences of the wounded, the influence of factors such as fat and intestinal gas, the clarity of the ultrasound image limited, it cannot clearly show the position of the catheter and guide wire used in the surgical operation, and it is also difficult to confirm the exact position of the filter in the contracted state during the implantation process, which brings considerable difficulties to the filter insertion in the frontier emergency field. Trouble, a technical problem so far unsolvable by cutting-edge first-aid sites

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