CN202859223U - Thrombus cutting device - Google Patents
Thrombus cutting device Download PDFInfo
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- CN202859223U CN202859223U CN 201220488433 CN201220488433U CN202859223U CN 202859223 U CN202859223 U CN 202859223U CN 201220488433 CN201220488433 CN 201220488433 CN 201220488433 U CN201220488433 U CN 201220488433U CN 202859223 U CN202859223 U CN 202859223U
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Abstract
The utility model provides a thrombus cutting device which comprises a shaft center rod, center guide wires, a far-end sliding sleeve, a near-end sliding sleeve, a first middle sliding sleeve, a second middle sliding sleeve, a far-end cutting silk-screen, a near-end cutting silk-screen, a far-end cutting guide wire and a near-end cutting guide wire. By means of controlling the opening and closing of the far-end cutting silk-screen and the near-end cutting silk-screen, wherein the far-end cutting silk-screen and the near-end cutting silk-screen are arranged oppositely, the thrombus cutting device directly recovers fragments into the cutting silk-screens when the cutting finishes, so that two-way reciprocating cutting greatly improves cutting efficiency. The whole thrombus cutting device can reach a closed status by means of a status which is identical with the status when led in, and then can reach the next operative region and repeat the previous work. Besides, the thrombus cutting device can be safely recovered to the outside of a body as a whole.
Description
Technical field
This utility model relates to a kind of medical apparatus and instruments, particularly a kind of thrombosis topping machanism that is used for the treatment of lower limb vein thrombus.
Background technology
Deep vein thrombosis of lower extremity is clinical common angiopathy, and sickness rate is and increases trend.Because can causing pulmonary infarction and chronic venous lobe incompetence syndrome, it comes into one's own.The primary treatment means are divided into medical treatment and surgical operation therapy at present, the Drug therapys such as medical treatment mainly adopts and invigorates blood circulation, anticoagulant, thrombolytic, and its clinical symptom remission mainly relies on the foundation of collatoral vessel, and it is very little that medicine dissolves probability fully with thrombosis; Surgical operation therapy difficulty and wound are large.Adopt Wicresoft's intervene operation therapy, small otch of percutaneous puncture inserts vein with special except the bolt operating theater instruments, directly carries out contact thrombolysis and except bolt, in time remove thrombosis under x-ray fluoroscopy, removes the veins of lower extremity high-pressure state.The advantages such as Wicresoft's intervene operation has instant effect, and wound is little, and pain is light, recovery is fast.
Through the literature search of prior art is found, relatively deficienter aspect the domestic medical apparatus and instruments of getting bolt in intervention.The patent No. is that the Chinese utility model patent " getting the bolt device " (Granted publication number for CN201042451Y) of ZL200620164685.4 discloses a kind of bolt device of getting.This device is mainly by umbrella, spindle rod, push-pull bar, inner tube, the outer tube nest of tables partly forms, its umbrella-shaped structure is made by the two long one short elastic memory functional materials that have with spring function, by umbrella-shaped structure open and control and push-pull bar return to cut thrombosis, and adopt the thrombosis after sleeve pipe will strike off to excrete, the advantage of this device is that structure is relatively simple, convenient control, and the effect that can stay the filter screen that plays the thrombosis chip in the blood vessel.Shortcoming is each only operation of suitable single of operation, and a treatment cycle cooperates gets off to take 7-10 days.Whole vein segment except the thrombosis deposition is arranged in the bolt process is in open state fully, and this causes potential internal organs thromboembolism dangerous so that broken [Dan piece might enter blood of human body and transfer to other positions or internal organs.
The patent No. is that the Chinese utility model patent " vein Fogarty " (Granted publication number for CN2659350Y) of ZL200320121061.0 discloses a kind of vein Fogarty.This patent by stilet, get the bolt pipe and sacculus 3 parts consist of, advantage is not damaged vein valve for taking out the extremity deep venous thrombosis, preserves in good condition the anti back-flow function of dark vein valve.This device is very classical a kind of kind of design that utilizes sacculus to get bolt.The main working portion of this device is the sacculus of front end and the sleeve pipe of rear end.At first sleeve pipe and sacculus integral body are sent in the blood vessel.Afterwards sacculus is partly probeed into the thrombus area rear, simultaneously with the bifurcated vessels zone of bobbin seal to thrombus area the place ahead.When the sacculus at rear is opened, sacculus just and sleeve pipe in zone line, formed a sealing area.Thrombosis is enclosed in behind this sealing area the sacculus that will launch to pulling back.Like this sacculus reasoning under, thrombosis can be moved back together with sacculus.Last thrombosis can be pushed in the sleeve pipe and by the sacculus of top with bobbin seal.Afterwards whole device is taken out the whole process of getting bolt of just can finishing.This device is got bolt with respect to the bloody path of bifurcated, is a good therapeutic scheme, and it not only is not subjected to the impact of blood vessel branch separately, and can utilize the bifurcated of blood flow to use sleeve pipe to reach the effect of a sealing.But it is the same to get pin device with the first kind, and this device can only carry out single operation in operation, and this operation process namely namely is through with after the process that sleeve pipe contacts with sacculus is finished.Can not reach well with respect to some diseases and to get the bolt effect.The another one shortcoming is exactly in the thrombosis of linear type blood vessel, and the expansion of sleeve pipe does not reach Gestalt, and therefore getting the bolt effect may be not ideal.
The patent No. is that the Chinese utility model patent " the slidingtype combined catheter that is used for the treatment of thrombosis " (Granted publication number for CN201192520Y) of ZL200820098250.3 discloses a kind of slidingtype combined catheter for the treatment of thrombosis.The design of this device, be a kind of be used for the treatment of thrombosis the slip combined catheter, comprise sleeve pipe and two core pipes that pass cannula cavity, cannula cavity is stretched out in core pipe both sides, sleeve pipe a wherein end be provided with a sacculus, this sacculus is positioned at outside the sleeve pipe.Adopt two sacculus modes during this device busy, two sacculus seal respectively the zone, front and back of thrombus area during work, and the core pipe slides in blood vessel, and the slip meeting of core pipe is peeled off blood vessel surface with thrombosis, and absorbs away with suction pipe.After operation finishes, sacculus is sucked back, single unit system is recalled.This device has reached the mode of circulation cutting in function, can be at same thrombus area Reciprocated cutting, add the cooperation of contrast agent, the thrombosis that can largely solve single thrombus area is residual, and can need not directly the thrombosis scrap be washed out by suction pipe by whole withdrawing device in operation.But with regard to the thrombus area of segmentation, it is not enough that this device just seems.And use in the suction pipe absorption a bit, may cause residual between two sacculus of thrombosis chip.And should be the dead angle of suction pipe absorption chip at the edge of two sacculus, when reclaiming sacculus, near the thrombosis chip it flows into rear blood vessel, causes potential internal organs thromboembolism danger after operation may occurring and finishing.
The utility model content
The purpose of this utility model exactly in order to solve the above-mentioned problems in the prior art, provides a kind of thrombosis topping machanism.
In order to achieve the above object, this utility model has adopted following technical scheme: a kind of thrombosis topping machanism, and it comprises:
Axis rod, be columnar structured, on it from distal-to-proximal the first bulge loop, the second bulge loop, the 3rd bulge loop and the 4th bulge loop of being sequentially with, form the far-end sliding area between the first bulge loop and the second bulge loop, sliding area in the middle of forming between the second bulge loop and the 3rd bulge loop forms the near-end sliding area between the 3rd bulge loop and the 4th bulge loop; Axis rod at middle sliding area is respectively equipped with the first chute and the second chute;
The center seal wire passes and is fixedly linked with the far-end of axis rod from the near-end of axis rod, and pulling center seal wire can drive axis rod and move forward and backward;
The far-end sliding sleeve is sleeved on the axis rod of far-end sliding area;
The near-end sliding sleeve is sleeved on the axis rod of near-end sliding area;
Sliding sleeve in the middle of first, on the axis rod of sliding area and corresponding to the first chute setting, the first middle sliding sleeve is provided with the first engaging lug and stretches in the first chute in the middle of being sleeved on;
Sliding sleeve in the middle of second, on the axis rod of sliding area and corresponding to the second chute setting, the second middle sliding sleeve is provided with the second engaging lug and stretches in the second chute in the middle of being sleeved on;
Far-end cutting silk screen comprises many umbrella frames, many support bars and is connected to silk screen on the umbrella frame that the collecting end of each umbrella frame is movably connected with the far-end sliding sleeve respectively, and the telescopic end of each umbrella frame is free end; The outer end of each support bar links to each other with corresponding umbrella frame intermediate active respectively, and the inner of each support bar is movably connected with the first middle sliding sleeve respectively;
Near-end cutting silk screen comprises many umbrella frames, many support bars and is connected to silk screen on the umbrella frame that the collecting end of each umbrella frame is movably connected with the near-end sliding sleeve respectively, and the telescopic end of each umbrella frame is free end; The outer end of each support bar links to each other with corresponding umbrella frame intermediate active respectively, and the inner of each support bar is movably connected with the second middle sliding sleeve respectively;
Far-end cutting seal wire penetrates in the axis rod from the near-end activity of axis rod, its far-end with stretch into that the first engaging lug of sliding sleeve is movably connected in the middle of first in the first chute, pulling far-end cutting seal wire can drive far-end cutting silk screen and open or draw in;
Near-end cutting seal wire penetrates in the axis rod from the near-end activity of axis rod, its far-end with stretch into that the second engaging lug of sliding sleeve is movably connected in the middle of second in the second chute, pulling near-end cutting seal wire can drive near-end cutting silk screen and draw in or open.
Above-mentioned thrombosis topping machanism, wherein, the telescopic end of each umbrella frame in described far-end cutting silk screen and the near-end cutting silk screen is respectively equipped with barb, the barb of the barb of far-end cutting silk screen and near-end cutting silk screen is oppositely arranged, when far-end cutting silk screen and near-end cutting silk screen all shrank, the mutual hook of barb of the barb of far-end cutting silk screen and near-end cutting silk screen connected the sealing of two cutting silk screens is integral.
Above-mentioned thrombosis topping machanism, wherein, the axis rod of described far-end sliding area is polygon prismatic structure, and described far-end sliding sleeve is provided with the endoporus adaptive with above-mentioned polygon prismatic structure, and the far-end sliding sleeve is sleeved on the axis rod of far-end sliding area can be along the axis rod axially-movable but can not radial rotating.
Above-mentioned thrombosis topping machanism, wherein, the axis rod of described near-end sliding area is polygon prismatic structure, and described near-end sliding sleeve is provided with the endoporus adaptive with above-mentioned polygon prismatic structure, and the near-end sliding sleeve is sleeved on the axis rod of near-end sliding area can be along the axis rod axially-movable but can not radial rotating.
Thrombosis topping machanism of the present utility model makes it compared with prior art owing to adopted above technical scheme, has following advantage and disadvantage:
1, can repeatedly carry out to number, many places as required the thrombosis cutting.
2, adopt along contrary Bidirectional cutting, increased largely stock-removing efficiency, improved operation efficient.
3, guaranteed the complete closed state, solved by the potential danger of leaving over the internal organs thromboembolism that thrombosis causes.
4, easy to operate, adopt conventional industrial manufacturing process and medical macromolecular materials commonly used to manufacture.
5, be suitable for the venothrombotic scraping operation of human limb, especially be fit to adopt the minimal invasion surgical technic to carry out striking off of human body femoral vein depths thrombosis.
Description of drawings
Fig. 1 is the perspective view of this utility model thrombosis topping machanism;
Fig. 2, Fig. 4 are the structural representation of facing of this utility model thrombosis topping machanism;
Fig. 3 is that the A-A of Fig. 2 is to the sectional structure sketch map;
Fig. 5 is that the B-B of Fig. 4 is to the sectional structure sketch map;
Fig. 6 is the structural representation of the axis rod in this utility model;
Fig. 7 is far-end sliding sleeve in this utility model and the structural representation of near-end sliding sleeve;
Fig. 8 is the structural representation of sliding sleeve in the middle of the middle sliding sleeve of first in this utility model and second;
Fig. 9 is the structural representation of the telescopic end of the umbrella frame in this utility model.
The specific embodiment
Referring to Fig. 1, cooperation is referring to Fig. 2, Fig. 3, Fig. 4, Fig. 5, thrombosis topping machanism entire length of the present utility model is set in 1.5～6cm scope, and its structure comprises that axis rod 1, center seal wire 2, far-end sliding sleeve 3, near-end sliding sleeve 4, the first middle sliding sleeve 5, the second middle sliding sleeve 6, far-end cutting silk screen 7, near-end cutting silk screen 8, far-end cutting seal wire 9 and near-end cut seal wire 10.
Cooperation is referring to Fig. 6, axis rod 1 in this utility model is columnar structured, on it from distal-to-proximal the first bulge loop 11, the second bulge loop 12, the 3rd bulge loop 13 and the 4th bulge loop 14 of being sequentially with, form far-end sliding area 15 between the first bulge loop and the second bulge loop, form near-end sliding area 17 between sliding area 16, the three bulge loops and the 4th bulge loop in the middle of forming between the second bulge loop and the 3rd bulge loop; Axis rod at middle sliding area is respectively equipped with the first chute (out not shown) and the second chute 19.
Cooperation is referring to Fig. 5, and the center seal wire 2 in this utility model passes and is fixedly linked with the far-end of axis rod from the near-end of axis rod 1, and pulling center seal wire can drive axis rod and move forward and backward.
Cooperation is referring to Fig. 7, and far-end sliding sleeve 3 is sleeved on the axis rod of far-end sliding area in this utility model; Near-end sliding sleeve 4 is sleeved on the axis rod of near-end sliding area; Far-end sliding sleeve 3 is identical with the structure of near-end sliding sleeve 4.
Cooperation is referring to Fig. 8, and in the middle of sliding sleeve 5 is sleeved in the middle of first in this utility model on the axis rod of sliding area and corresponding to the first chute setting, sliding sleeve is provided with the first engaging lug and stretches 51 and enter in the first chute in the middle of first; On the axis rod of sliding area and corresponding to the second chute setting, the second middle sliding sleeve was provided with the second engaging lug 61 and stretches in the second chute in the middle of sliding sleeve 6 was sleeved in the middle of second; Sliding sleeve 5 is identical with the structure of sliding sleeve 6 in the middle of second in the middle of first.
Far-end cutting silk screen 7 comprises many umbrella frames 71, many support bars 72 and is connected to silk screen 73 on the umbrella frame, and the collecting end of each umbrella frame is movably connected with far-end sliding sleeve 3 respectively, and the telescopic end of each umbrella frame is free end; The outer end of each support bar 72 links to each other with corresponding umbrella frame intermediate active respectively, and the inner of each support bar is movably connected with the first middle sliding sleeve 5 respectively.
Cooperation is referring to Fig. 3, Fig. 5, and the near-end cutting silk screen 8 in this utility model comprises many umbrella frames 81, many support bars 82 and be connected to silk screen 83 on the umbrella frame, and the collecting end of each umbrella frame is movably connected with near-end sliding sleeve 4 respectively, and the telescopic end of each umbrella frame is free end; The outer end of each support bar 82 links to each other with corresponding umbrella frame intermediate active respectively, and the inner of each support bar is movably connected with the second middle sliding sleeve 6 respectively.
Far-end cutting seal wire 9 penetrates in the axis rod 1 from the near-end activity of axis rod, its far-end with stretch into that the first engaging lug 51 of sliding sleeve is movably connected in the middle of first in the first chute, pulling far-end cutting seal wire 9 can drive far-end cutting silk screen and open or draw in.
Near-end cutting seal wire 10 penetrates in the axis rod from the near-end activity of axis rod, and the second engaging lug 61 of the second middle sliding sleeve that its far-end is interior with stretching into the second chute is movably connected, and pulling near-end cutting seal wire can drive near-end cutting silk screen gathering or open.
Cooperation is referring to Fig. 9, each umbrella frame 71 in far-end cutting silk screen in this utility model and the near-end cutting silk screen, 81 telescopic end are respectively equipped with barb 711,811, the barb of the barb of far-end cutting silk screen and near-end cutting silk screen is oppositely arranged, when far-end cutting silk screen and near-end cutting silk screen all shrank, the mutual hook of barb of the barb of far-end cutting silk screen and near-end cutting silk screen connected the sealing of two cutting silk screens is integral.
Cooperation is referring to Fig. 9, Fig. 7, the axis rod of the far-end sliding area 15 in this utility model is polygon prismatic structure, far-end sliding sleeve 3 is provided with the endoporus 31 adaptive with above-mentioned polygon prismatic structure, and the far-end sliding sleeve is sleeved on the axis rod of far-end sliding area can be along the axis rod axially-movable but can not radial rotating.
Cooperation is referring to Fig. 9, Fig. 7, the axis rod of the near-end sliding area 17 in this utility model is polygon prismatic structure, near-end sliding sleeve 4 is provided with the endoporus 41 adaptive with above-mentioned polygon prismatic structure, and the near-end sliding sleeve is sleeved on the axis rod of near-end sliding area can be along the axis rod axially-movable but can not radial rotating.
This utility model thrombosis topping machanism is for the speed of blood flow rate, and its working method can be divided into two kinds of patterns: reciprocation cycle cutting mode and individual event circulation cutting mode.
When one, blood flow rate is relatively slow, adopt the reciprocation cycle cutting mode
If since the blood flow of patient own is quite smooth or operation in have pair blood vessel to intervene through the stifled blood of row step.In this case, blood flow rate is compared and can be ignored with the cutting speed of operation, and is little for the surgical effect impact with the blood flow direction Direct/Reverse so, can take the pattern of reciprocation cycle cutting.
Device is along being sent in patient's the blood vessel by the center seal wire of axis rod, the state of this timer is complete closed, far-end sliding sleeve and near-end sliding sleeve are respectively near the first bulge loop and the 4th bulge loop, sliding sleeve is respectively near the mid portion of the first chute and the second chute in the middle of the sliding sleeve and second in the middle of first, and the mutual hook of the barb of far-end sliding sleeve and near-end sliding sleeve connects.
When beginning to cut, traction near-end cutting seal wire, sliding sleeve moves to near-end in the middle of the control second, power by the second middle sliding sleeve is delivered on the support bar of near-end cutting silk screen, near-end cutting silk screen is launched, two cutting silk screens disappear at axial binding force with each other simultaneously, and near-end cutting silk screen can slide over near-end sliding area intrinsic displacement in the middle of second.At this moment, continue to be pulled outwardly near-end cutting seal wire, so that near-end cutting silk screen also outwards slides under the effect of power, until sliding sleeve pushes up the 3rd bulge loop in the middle of second, sliding sleeve can not be outwards mobile again in the middle of second, the pulling force of near-end cutting this moment seal wire becomes the strength of opening of near-end cutting silk screen fully, and last near-end cutting silk screen struts at the thrombosis near-end as Rhizoma Arisaematis.And the high strength macromolecule silk thread material at near-end cutting silk screen tip is tightened the scraping after forming in the cutting movement behind net unfolding.Far-end cutting silk screen still is in contraction state under this state.Then push away the center seal wire to far-end, allow device integral body to distal movement process thrombus area, finish for the first time cutting.
After finishing the cutting movement first time, device cuts out from thrombus area, has reached the far-end of thrombus area, at this moment, is carrying the thrombosis that cuts for the first time in the near-end of the device cutting silk screen.Then adopt operating principle same as described above, draw in by near-end cutting seal wire end-grain cutting wire cutting nearly net, by far-end cutting seal wire far-end is cut silk screen and open, then draw the center seal wire to near-end, allow device integral body to near-end motion process thrombus area, finish for the second time cutting.The thrombosis that cuts for the second time is loaded in the far-end cutting silk screen.
After this device can repeat above-mentioned steps, carries out Reciprocated cutting.
After finishing cutting, device is reclaimed.Draw in by near-end cutting seal wire end-grain cutting wire cutting nearly net, by far-end cutting seal wire far-end is cut silk screen and draw in, near-end cutting silk screen and far-end cutting silk screen connect the whole enclosed structure that forms by the mutual hook of barb separately.Then draw the center seal wire to near-end, allow device integral body in blood vessel, shift out.All cut the thrombosis chip that gets off and all seal up for safekeeping in the cutting silk screen of device, and this design can avoid the thrombosis chip to reach other positions of health to a great extent, causes danger.
When two, blood flow rate is relatively very fast, adopt individual event circulation cutting mode
When blood flow rate faster, and cutting direction can cause that tiny thrombosis chip enters the thromboembolism at rear, even may enter pulmonary when identical with blood flow direction, produces pulmonary infarction, and fatal risk occurs.In this case, adopt individual event circulation cutting mode.
Device is sent in patient's the blood vessel along axis rod center seal wire, the state of this timer is complete closed, when device will begin to cut, traction near-end cutting seal wire, sliding sleeve moves to near-end in the middle of making second, power by the second middle sliding sleeve is delivered on the support bar of near-end cutting silk screen, and near-end cutting silk screen is launched.Launch in a flash at near-end cutting silk screen, two barbs that cut between the silk screen are separated, and two mutual sealings constraints of cutting silk screen are removed.Make near-end cutting silk screen can with second in the middle of sliding sleeve can be at near-end sliding area intrinsic displacement.At this moment, continue to be pulled outwardly near-end cutting seal wire, so that near-end cutting silk screen also slides to near-end under the effect of power, until sliding sleeve pushes up the 3rd bulge loop in the middle of second, sliding sleeve can not move to near-end again in the middle of second, this moment, the pulling force of seal wire became the strength of opening that near-end cuts silk screen fully, and last near-end cutting silk screen struts at the thrombosis near-end as Rhizoma Arisaematis.And the high strength macromolecule silk thread material at near-end cutting silk screen tip is tightened the scraping after forming in the cutting movement after near-end cutting silk screen launches.Far-end cutting silk screen still is in contraction state under this state.Then push away the center seal wire to far-end, allow device integral body to distal movement process thrombus area, finish for the first time cutting.
After finishing for the first time cutting, be not to carry out a reverse cutting.Because do like this, can make cutting direction identical with blood flow direction, cause chip can have no to enter rear blood with stopping.Therefore, the design of this step is that end-grain cutting is nearly cut seal wire and pushed away to far-end, makes near-end cutting silk screen shrink, and forms the structure of a sealing, and it is inner that so thrombosis chip still is enclosed in the near-end cutting silk screen of device.
Then will install the whole near-end that retracts thrombus area, the net of end-grain cutting wire cutting nearly launches again, slides to thrombus area, carries out the cutting second time.Namely carry out the round cutting of individual event, until thrombosis is removed fully.
Final step after the thrombosis cutting is finished, is taken out the device sealing of integral body, and the thrombosis chip is all taken out of external in device.
Comparison about two kinds of mode of operations: the mode stock-removing efficiency of the first reciprocation cycle cutting is higher, after for the first time cutting, can carry out the cutting second time to opposite direction by changing cutting silk screen state, but can not reclaim well the thrombosis chip with respect to blood flow state, may be to the personal cause danger of patient with operation.Comparatively speaking, the safety of the second duty is very high, can reach good recovery to the thrombosis chip, but its stock-removing efficiency compare the first slowly nearly half, that is to say that both cut both ways.
Claims (4)
1. thrombosis topping machanism is characterized in that comprising:
Axis rod, be columnar structured, on it from distal-to-proximal the first bulge loop, the second bulge loop, the 3rd bulge loop and the 4th bulge loop of being sequentially with, form the far-end sliding area between the first bulge loop and the second bulge loop, sliding area in the middle of forming between the second bulge loop and the 3rd bulge loop forms the near-end sliding area between the 3rd bulge loop and the 4th bulge loop; Axis rod at middle sliding area is respectively equipped with the first chute and the second chute;
The center seal wire passes and is fixedly linked with the far-end of axis rod from the near-end of axis rod, and pulling center seal wire can drive axis rod and move forward and backward;
The far-end sliding sleeve is sleeved on the axis rod of far-end sliding area;
The near-end sliding sleeve is sleeved on the axis rod of near-end sliding area;
Sliding sleeve in the middle of first, on the axis rod of sliding area and corresponding to the first chute setting, the first middle sliding sleeve is provided with the first engaging lug and stretches in the first chute in the middle of being sleeved on;
Sliding sleeve in the middle of second, on the axis rod of sliding area and corresponding to the second chute setting, the second middle sliding sleeve is provided with the second engaging lug and stretches in the second chute in the middle of being sleeved on;
Far-end cutting silk screen comprises many umbrella frames, many support bars and is connected to silk screen on the umbrella frame that the collecting end of each umbrella frame is movably connected with the far-end sliding sleeve respectively, and the telescopic end of each umbrella frame is free end; The outer end of each support bar links to each other with corresponding umbrella frame intermediate active respectively, and the inner of each support bar is movably connected with the first middle sliding sleeve respectively;
Near-end cutting silk screen comprises many umbrella frames, many support bars and is connected to silk screen on the umbrella frame that the collecting end of each umbrella frame is movably connected with the near-end sliding sleeve respectively, and the telescopic end of each umbrella frame is free end; The outer end of each support bar links to each other with corresponding umbrella frame intermediate active respectively, and the inner of each support bar is movably connected with the second middle sliding sleeve respectively;
Far-end cutting seal wire penetrates in the axis rod from the near-end activity of axis rod, its far-end with stretch into that the first engaging lug of sliding sleeve is movably connected in the middle of first in the first chute, pulling far-end cutting seal wire can drive far-end cutting silk screen and open or draw in;
Near-end cutting seal wire penetrates in the axis rod from the near-end activity of axis rod, its far-end with stretch into that the second engaging lug of sliding sleeve is movably connected in the middle of second in the second chute, pulling near-end cutting seal wire can drive near-end cutting silk screen and draw in or open.
2. thrombosis topping machanism as claimed in claim 1, it is characterized in that: the telescopic end of each umbrella frame in described far-end cutting silk screen and the near-end cutting silk screen is respectively equipped with barb, the barb of the barb of far-end cutting silk screen and near-end cutting silk screen is oppositely arranged, when far-end cutting silk screen and near-end cutting silk screen all shrank, the mutual hook of barb of the barb of far-end cutting silk screen and near-end cutting silk screen connected the sealing of two cutting silk screens is integral.
3. thrombosis topping machanism as claimed in claim 1, it is characterized in that: the axis rod of described far-end sliding area is polygon prismatic structure, described far-end sliding sleeve is provided with the endoporus adaptive with above-mentioned polygon prismatic structure, and the far-end sliding sleeve is sleeved on the axis rod of far-end sliding area can be along the axis rod axially-movable but can not radial rotating.
4. thrombosis topping machanism as claimed in claim 1, it is characterized in that: the axis rod of described near-end sliding area is polygon prismatic structure, described near-end sliding sleeve is provided with the endoporus adaptive with above-mentioned polygon prismatic structure, and the near-end sliding sleeve is sleeved on the axis rod of near-end sliding area can be along the axis rod axially-movable but can not radial rotating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220488433 CN202859223U (en) | 2012-09-21 | 2012-09-21 | Thrombus cutting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220488433 CN202859223U (en) | 2012-09-21 | 2012-09-21 | Thrombus cutting device |
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| Publication Number | Publication Date |
|---|---|
| CN202859223U true CN202859223U (en) | 2013-04-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220488433 Expired - Fee Related CN202859223U (en) | 2012-09-21 | 2012-09-21 | Thrombus cutting device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021135436A1 (en) * | 2019-12-30 | 2021-07-08 | 杭州德晋医疗科技有限公司 | Valve tissue cutting apparatus and valve clamp recovery system |
| CN113598884A (en) * | 2021-08-06 | 2021-11-05 | 内蒙古工业大学 | Broken bolt assembly and blood vessel thrombus treatment device |
| CN113796926A (en) * | 2021-10-20 | 2021-12-17 | 广州博鑫医疗技术有限公司 | Thrombus cutting device |
-
2012
- 2012-09-21 CN CN 201220488433 patent/CN202859223U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021135436A1 (en) * | 2019-12-30 | 2021-07-08 | 杭州德晋医疗科技有限公司 | Valve tissue cutting apparatus and valve clamp recovery system |
| CN113598884A (en) * | 2021-08-06 | 2021-11-05 | 内蒙古工业大学 | Broken bolt assembly and blood vessel thrombus treatment device |
| CN113796926A (en) * | 2021-10-20 | 2021-12-17 | 广州博鑫医疗技术有限公司 | Thrombus cutting device |
| CN113796926B (en) * | 2021-10-20 | 2024-04-26 | 广州博鑫医疗技术有限公司 | Thrombus cutting device |
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