CN202490000U

CN202490000U - Medical cerebral thrombosis treating device

Info

Publication number: CN202490000U
Application number: CN2012200468747U
Authority: CN
Inventors: 周斌
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-02-14
Filing date: 2012-02-14
Publication date: 2012-10-17
Anticipated expiration: 2022-02-14

Abstract

The utility model provides a medical cerebral thrombosis treating device and aims at solving the technique problem is that the distal end of a blood vessel cavity is protected while thrombus and embolus are taken out. The medical cerebral thrombosis treating device comprises a thrombus resectoscope. The thrombus resectoscope comprises a netting basket which is in a releasing state and arranged at the distal end of the thrombus resectoscope. A guide wire bar is coaxially connected with the netting basket and the distal end of the guide wire bar is connected with a soft guide wire head. When the netting basket is in a shrinkage state, the whole thrombus resectoscope can be arranged inside a delivery guide tube which is arranged inside a recycling guide tube. The delivery guide tube can extend towards the distal end of the thrombus resectoscope along the recycling guide tube. The free-state shape of a thrombus removal spring is of single-head spiral shape. The near-end of the thrombus resectoscope is fixed to the guide wire rod and the distal end of the thrombus resectoscope is in sliding connection with the guide wire rod. The end portion of the distal end of the thrombus resectoscope extends straightly to the distal end of the thrombus resectoscope along the guide wire rod under the application of an outer force.

Description

Medical cerebral thrombosis blood processor

Technical field

This utility model relates to and is used to pulverize and take out in the cerebral vessels or the device of fresh thrombus, atheromatous plaque or other objects that other anatomic passageway are interior.

Background technology

Along with the improvement of living standard, the cardiovascular and cerebrovascular disease sickness rate improves year by year, becomes one of human three big causes of death.Wherein the sickness rate of cerebrovascular disease, prevalence, mortality rate, disability rate and relapse rate are all high.Main result is following for China's EPDML investigation of cerebrovascular: sickness rate: 136～4,41/,100,000 population/years (163.2～1529.2 ten thousand/year), wherein, cerebral infarction accounts for 75% of apoplexy; Prevalence: 280～12,85/,100,000 populations (336～1529.2 ten thousand/year); 10000 population/years of mortality rate: 59-281/10 (70.8～337.2 ten thousand/year) average 1,30/,100,000 people/years (1,560,000/year); Disability rate: 60-80%.It is greatly endangering human beings'health, is the key subjects that medical circle faces.In general, mostly the main cause of adult morbidity in late period is the inaccessible disease of atherosclerotic thrombosis.

Its therapeutic purposes: focus on the perfusion that recovers or actively increase ischemic region; Take thrombolytic or anticoagulant and cerebral protective agent; Adjust blood pressure (it is hemorrhage to prevent that hyperpiesia from causing in the thrombolytic process, avoids hypopiesia hypoperfusion to occur again, increases the weight of ischemia symptom); The antagonism reperfusion injury is to encephaledema.

The at present normal existing thrombosis taking-up/destruction conduit of the percutaneous intubate interventional therapy method induction type conduit of suction hose (as have); Thrombosis trap-type conduit (conduit that has the thrombosis container for capturing like far-end); Thrombosis breaking plant (distal end of catheter contains ultrasonic spy or laser head); Above-mentioned apparatus far-end is surpassed or near thrombosis, thrombosis caught, destroyed or melts, play the purpose of logical blood vessel again.Existing thrombosis trap-type conduit respectively has its pluses and minuses, because of it is flexible not enough, to better than thrombosis capture effect in the trunk, but the tortuous intracranial vessel of traveling is then got into difficulty, is difficult to carry out.

Summary of the invention

Shortcoming to prior art; The purpose of this utility model provides a kind of device that is used to pulverize with removal of thromboses; Be used for avoiding angiemphraxis further to increase the weight of, reduce mortality rate at blood vessel small artery (in the especially crooked cerebrovascular) removal of thromboses or other emboluses; Alleviate the degree that disables, improve the quality of living.

This utility model adopts following technical scheme: a kind of medical cerebral thrombosis blood processor; Have thrombectomy device, said thrombectomy device comprises the basket of release conditions, and basket is positioned at the far-end of thrombectomy device; Be coaxially connected with conducting wire pole with basket, the conducting wire pole far-end is connected with softish conductive filament head; Whole thrombectomy device can be contained in the delivery conduit when said basket was contraction state; Said delivery conduit is arranged on and reclaims in the conduit, and delivery conduit can stretch out to far-end along reclaiming conduit; The free state shape of said thrombectomby spring is the single head helical form, and its near-end is fixed on the conducting wire pole, and far-end and conducting wire pole are slidingly connected, and distal end can stretch to its far-end along conducting wire pole under external force.

Compared with prior art; Adopt the basket structure; The blood flow of arresting, twine and take out the process medium vessels at thrombosis is able to continue to flow; Do not disturb the blood of normal cerebral tissue to supply, in removal of thromboses and embolus, the lumen of vessels far-end is protected, thereby make the clot or the thrombosis fragment that in the process of thrombosis and embolus taking-up, are produced all be able to take out.

Description of drawings

The structural representation of Fig. 1 embodiment of the invention thrombectomy device.

The interventional procedure process sketch map of Fig. 2 embodiment of the invention.

The specific embodiment

As shown in Figure 1, the thrombosis blood processor comprises: conductive filament head 1, far-end slip indicating 2, basket 3, basket traction 4, fixedly indicating 5 of near-end, conducting wire pole 6, thrombectomby spring 7.The free state shape of thrombectomby spring 7 is three distributing auger lines, also can be two to five, and its footpath is 0.03 to 0.3 millimeter, and its spiral helicine external diameter is 2 to 5 millimeters, and pitch is 2 to 5 millimeters, manually or machine work out.Thrombectomby spring 7 is arranged on near-end one side of basket 3, and an end of helix is fixedly connected with conducting wire pole 6, and the other end and conducting wire pole are slidingly connected, and can stretch along the conducting wire pole far-end under external force.

As shown in Figure 2, during thrombectomby, the delivery conduit of packing in the said recovery conduit, the thrombectomy device 9 of the shape that is in line are packed in the delivery conduit, and after reclaiming conduit and being admitted to internal carotid artery 10, delivery conduit stretches out and is admitted to small artery from reclaiming conduit.Thrombectomy device is admitted to little blood vessel through delivery conduit; After its conductive filament head exposes delivery conduit; Delivery conduit and thrombectomy device are made the as a whole far-end of delivering to thrombosis or embolus 8, after affirmation thrombectomby spring strides across thrombosis or embolus, keep conducting wire pole motionless; Return and remove delivery conduit, thrombectomy device progressively is released in delivery conduit.The nitinol alloy wire of braiding basket since its elastic return to the prior basket shape of typing, basket is opened, thus basket is full of the whole inner chamber of this blood vessel, plays filtering blood, do not interrupt the distal embolic protection cerebral tissue effect of far-end blood supply.Continue back to remove delivery conduit; The thrombectomby spring is progressively disengaged from delivery conduit; Disengage the SME of process because of its memorial alloy, the thrombectomby spring of circle shape slowly forms several rounds windings and accomplishes the process of arresting thrombosis of twining the intravascular space that discharges the position.

When reclaiming conducting wire pole, the thrombectomby spring can be caught big clot, and basket can be with clot and the garbage collection do not taken away by the thrombectomby spring in the lumen of vessels.Progressively reclaim conducting wire pole, basket income reclaimed in the conduit, with thrombectomy device with reclaim conduit and do as a wholely to withdraw from externally, the thrombectomby process promptly finishes.Use this thrombectomy device in excision thrombosis process, to need not blocking blood flow, but carry out distal embolic protection, when removing thrombosis or embolus fragment, do not interrupt cerebral tissue blood and supply through the basket of filtering blood.

Claims

1. medical cerebral thrombosis blood processor; Have thrombectomy device, it is characterized in that: said thrombectomy device comprises the basket of release conditions, and basket is positioned at the far-end of thrombectomy device; Be coaxially connected with conducting wire pole with basket, the conducting wire pole far-end is connected with softish conductive filament head; Whole thrombectomy device can be contained in the delivery conduit when said basket was contraction state; Said delivery conduit is arranged on and reclaims in the conduit, and delivery conduit can stretch out to far-end along reclaiming conduit; The free state shape of said thrombectomby spring is the single head helical form, and its near-end is fixed on the conducting wire pole, and far-end and conducting wire pole are slidingly connected, and distal end can stretch to its far-end along conducting wire pole under external force.