CN210903224U - Thrombus integral removing device - Google Patents
Thrombus integral removing device Download PDFInfo
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- CN210903224U CN210903224U CN201921302555.6U CN201921302555U CN210903224U CN 210903224 U CN210903224 U CN 210903224U CN 201921302555 U CN201921302555 U CN 201921302555U CN 210903224 U CN210903224 U CN 210903224U
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Abstract
The embodiment of the utility model provides a whole clearing device of thrombus, the device is including retrieving pipe, delivery conduit, intercommunication pipe, push-and-pull seal wire, thrombus encapsulation mechanism, thrombus capture the mechanism and develop the section, develop the section solid fixed ring around in intercommunication pipe with on the push-and-pull seal wire, the device passes through thrombus encapsulation mechanism and the two cooperation of mechanism is captured to the thrombus, under the assistance-localization real-time of developing the section, can wholly thoroughly clear away the thrombus, solved present mechanical thrombectomy device that clinically adopts and mostly be individual layer supporting structure, not only weak to the capture ability of thrombus, thrombectomy efficiency is lower, need push-and-pull repeatedly during the operation moreover, lead to the thrombus in the blood vessel very easily broken the droing, and to the problem that the distal end blood vessel caused the embolism again.
Description
Technical Field
The utility model belongs to the technical field of vascular disease treatment device, concretely relates to whole clearing device of thrombus.
Background
With the continuous increase of aging population and the continuous improvement of living standard of people in recent years, the number of people suffering from vascular diseases is increased day by day, wherein the related vascular diseases such as myocardial large-area infarction, arteriovenous occlusion, cerebral arterial thrombosis and the like caused by thrombosis become common diseases and frequently encountered diseases in clinic, and higher fatality rate and disability rate are caused to a large number of patients. Thrombus is a blood clot formed by abnormal aggregation of blood vessels by red blood cells, fibrin, platelets, white blood cells, and other components in blood at different ratios. Thrombi can not only form in blood vessels of any part of the body, but also spread throughout various tissues and organs of the human body.
Aiming at blood vessel occlusion and blood flow obstruction caused by thrombus, a drug thrombolysis method is mostly adopted for treatment in the early stage, but the clinical effect is not obvious, the blood vessel recanalization rate is low, the recanalization time is long, the drug thrombolysis treatment is only suitable for thrombus with small volume, the treatment effect on large-volume thrombus occlusion is not ideal, and only about 3-5% of patients are usually suitable for drug thrombolysis treatment.
The mechanical thrombus removal method provides a novel efficient revascularization treatment method for patients, and the method is characterized in that a thrombus removal device is conveyed into a diseased blood vessel, and then the thrombus is removed out of the body through a catheter. The mechanical thrombus removal has short operation time, thorough thrombus removal and few prognosis complications, and is a research hotspot in the field of thrombus treatment at present. However, most of the currently clinically adopted mechanical thrombus removal devices are of a single-layer stent structure, which not only has weak thrombus capturing capability and low thrombus removal efficiency, but also needs to be repeatedly pushed and pulled during operation, so that thrombus in a blood vessel is easily broken and falls off and flows to a far-end blood vessel to cause re-embolism.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem that exists among the prior art, the embodiment of the utility model provides a thrombus whole clearing device, the device during operation catches the cooperation when the mechanism is two through thrombus packaging mechanism and thrombus to under the assistance-localization real-time of developing the section, can thoroughly clear away thrombus is whole. The device also has the characteristics of simple structure, convenience in operation, accuracy in positioning and quickness in opening.
In order to achieve the above object, the embodiment of the present invention adopts the following technical solutions:
the thrombus bulk removal device comprises:
a recovery conduit;
the conveying conduit is movably sleeved in the recovery conduit;
the communicating conduit is movably sleeved in the conveying conduit;
the push-pull guide wire is arranged on a central axis in the communicating catheter and moves along the direction of the central axis relative to the communicating catheter, and the push-pull guide wire is provided with two ends of a traction end and a pushing end;
the thrombus packaging mechanism is fixedly arranged at the end head of the communicating catheter and is of a retractable net body structure;
the thrombus capturing mechanism is fixedly arranged on the push-pull guide wire and between the pushing end and the thrombus packaging mechanism; and
and the developing section is fixedly wound on the communicating conduit and the push-pull guide wire.
In the thrombus integral removing device, the recovery catheter, the conveying catheter, the communicating catheter, the push-pull guide wire, the thrombus packaging mechanism, the thrombus capturing mechanism and the developing section can be coaxially arranged. In the non-operating state, the mechanisms are all retracted in the recovery duct. When the device is in a working state, a recovery catheter comprising a conveying catheter, a communicating catheter and a push-pull guide wire is conveyed to the position near thrombus along a blood vessel through a control system, the recovery catheter is fixed through the control system, the conveying catheter is pushed to penetrate through the thrombus, the push-pull guide wire is fixed through the control system, the communicating catheter is retracted to a proper distance under the auxiliary positioning of a developing section, so that a thrombus packaging mechanism arranged on the communicating catheter and a thrombus catching mechanism arranged on the push-pull guide wire can be accurately positioned at two ends of the thrombus, the communicating catheter and the push-pull guide wire are fixed through the control system, the conveying catheter is retracted to an outlet of the recovery catheter, and the thrombus packaging mechanism arranged on the communicating catheter and the thrombus catching mechanism arranged on the push-pull guide wire are released into the blood vessel.
The thrombus encapsulation mechanism is a net body structure, is in a cone cylinder shape during release, and can form a hollow net cylinder when the thrombus encapsulation mechanism is released into a blood vessel, so that not only can the blood vessel wall be fully supported and expanded, but also the whole thrombus in the blood vessel can be sealed.
The thrombus capture mechanism is of a net body structure and is in a circular cover shape during release, and when the thrombus capture mechanism is released into a blood vessel, the thrombus in the blood vessel can be integrally captured and pushed into the thrombus encapsulation mechanism.
Through the fixed pipe that retrieves of control system, delivery catheter and intercommunication pipe, slowly withdraw the push-and-pull seal wire, at the withdrawal in-process, the thrombus capture mechanism that sets up on the push-and-pull seal wire captures the whole thrombus and propelling movement to thrombus packaging mechanism in, and along with the withdrawal of push-and-pull seal wire, thrombus packaging mechanism, the thrombus that is captured and thrombus capture the mechanism and be withdrawn in proper order to retrieve in the pipe, all steadily withdraw from the whole clearing device of thrombus to external afterwards, can accomplish the work of clearing away the whole thrombus.
The developing section is adopted to accurately position a thrombus packaging mechanism and a blood vessel catching mechanism in the thrombus overall clearing device, so that an operator can clearly observe the positions of the thrombus packaging mechanism and the thrombus catching mechanism in the blood vessel under X-rays through the arrangement of the developing section, and the operator can accurately and thoroughly finish the overall catching and clearing work of the thrombus; (2) the developing section is wound on the communicating catheter, so that the integral pushing and pulling capacity of the communicating catheter can be obviously improved, the connection strength of the thrombus packaging mechanism and the communicating catheter can be improved, and the safety of the thrombus integral removing device during use can be more effectively enhanced; (3) the developing section is wound on the push-pull guide wire, so that the integral pushing and pulling capacity of the push-pull guide wire can be obviously improved, the connection strength of the thrombus catching mechanism and the push-pull guide wire can be improved, and the safety of the thrombus integral removing device during use can be more effectively enhanced.
Preferably, the thrombus encapsulation mechanism is a collapsible mesh structure.
Further preferably, the thrombus encapsulation mechanism is in a net pipe shape when being contracted, is in a cone cylinder shape when being released, and can form a hollow net cylinder when being released into a blood vessel, so that the thrombus encapsulation mechanism not only can fully support and expand the blood vessel wall, but also can wholly seal thrombus in the blood vessel.
Preferably, the thrombus capture mechanism is a retractable mesh structure.
Further preferably, the thrombus capture mechanism is in a net pipe shape when being contracted, and is in a round cover shape when being released, so that thrombus in the blood vessel can be integrally captured and pushed into the thrombus encapsulation mechanism when the thrombus capture mechanism is released into the blood vessel.
Preferably, the mesh body structure is a wire mesh, and the wire mesh comprises a stainless steel mesh, a nickel-titanium alloy mesh, a cobalt-chromium alloy mesh, a tantalum alloy mesh and a titanium alloy mesh.
Preferably, the developing stages include a first developing stage, a second developing stage, and a third developing stage.
Further preferably, the developing section includes gold or an alloy thereof, platinum or an alloy thereof, tungsten or an alloy thereof, and tantalum or an alloy thereof.
Further preferably, the first visualization section is disposed on the communication conduit at a proximal end of the thrombus encapsulation mechanism.
Further preferably, the second visualization section is disposed on the push-pull guide wire and at a proximal end of the thrombus capture mechanism.
Further preferably, the third developing section is arranged on the push-pull guide wire and at the far end of the thrombus capture mechanism.
The embodiment of the utility model provides a thrombus encapsulation mechanism and thrombus among the whole clearing device of thrombus catch when the mechanism is in the release state simultaneously, can demonstrate different outward appearance structures to the performance is specific service function separately, and the thrombus of cleaing away that can be thorough is whole, and easy and simple to handle, accords with clinical use's needs.
The beneficial effects of the utility model
1. The utility model provides a thrombus integral removing device, which can form a hollow net cylinder when the thrombus packaging mechanism is released by arranging the thrombus packaging mechanism which can be contracted or released on the communicating catheter, and the hollow net cylinder not only can fully support and expand the vascular wall, but also can wholly seal the thrombus in the blood vessel;
2. the thrombus overall clearing device provided by the utility model has the advantages that the thrombus capture mechanism capable of being contracted or released is arranged on the push-pull guide wire, so that the thrombus in the blood vessel can be integrally captured and pushed into the thrombus encapsulation mechanism when the thrombus capture mechanism is released;
3. the thrombus overall clearing device provided by the utility model can thoroughly catch and clear the thrombus overall under the auxiliary positioning of the developing section through the simultaneous cooperation of the thrombus packaging mechanism and the thrombus catching mechanism;
4. the utility model provides a whole clearing device of thrombus, when thrombus packaging mechanism and thrombus are caught the mechanism and are in the release state simultaneously, can demonstrate different outward appearance structures to the performance is specific service function separately, and has simple structure, simple operation, location accuracy and open quick characteristics.
Drawings
Fig. 1 is a schematic view of the overall thrombus removal device according to an embodiment of the present invention in a contracted state.
Fig. 2 is a schematic view of the release state of the thrombus bulk removal device according to the embodiment of the present invention.
Fig. 3 is a structural diagram of a developing section of the thrombus bulk removing device according to the embodiment of the present invention.
Fig. 4 is a working schematic diagram of the thrombus bulk-removing device in the embodiment of the present invention before the thrombus passes through the thrombus.
Fig. 5 is a schematic view of the thrombus bulk-removing device according to the embodiment of the present invention after the thrombus passes through the thrombus.
Fig. 6 is a schematic view of the thrombus cleaning mechanism of the thrombus cleaning device according to the embodiment of the present invention.
Fig. 7 is a schematic view showing the operation of the thrombus removal mechanism in the thrombus removal device according to the embodiment of the present invention.
FIG. 8 is a schematic view showing the operation of the thrombus-clearing device for capturing thrombus according to the embodiment of the present invention.
FIG. 9 is a schematic view showing the operation of the thrombus-clearing device according to the embodiment of the present invention when the thrombus is closed.
Fig. 10 is a schematic view illustrating a state where the blood flow returns to normal operation after the thrombus is completely removed according to the embodiment of the present invention.
Detailed Description
The embodiment of the utility model provides a whole clearing device of thrombus, the device catches mechanism and development section including retrieving pipe, delivery catheter, intercommunication pipe, push-and-pull seal wire, thrombus packaging mechanism, thrombus. When the device works, the thrombus packaging mechanism and the thrombus catching mechanism are matched at the same time, and the thrombus can be completely removed integrally under the auxiliary positioning of the developing section. The device also has the characteristics of simple structure, convenience in operation, accuracy in positioning, quickness in opening and the like.
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is further described with reference to the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the elements related to the present invention are shown in the drawings. It should also be noted that the following description uses the terms "proximal" and "distal", where "proximal" refers to the end closer to the operator and "distal" refers to the end further from the operator.
Example 1
The present example provides an integrated thrombus removal device comprising:
a recovery conduit 1;
the conveying conduit 2 is movably sleeved in the recovery conduit 1;
the communicating conduit 3 is movably sleeved in the conveying conduit 2;
the push-pull guide wire 4 is arranged on a central axis in the communicating catheter 3 and moves along the direction of the central axis relative to the communicating catheter 3, and the push-pull guide wire 4 is provided with two ends of a traction end and a pushing end;
the thrombus packaging mechanism 5 is fixedly arranged at the end head of the communicating catheter 3, and the thrombus packaging mechanism 5 is of a retractable net body structure;
the thrombus capture mechanism 6 is fixedly arranged on the push-pull guide wire 4 and between the pushing end and the thrombus encapsulation mechanism 5; and
and the developing section 7 is fixedly surrounded on the communication catheter 3 and the push-pull guide wire 4.
In the thrombus overall clearing device, the recovery catheter 1, the delivery catheter 2, the communicating catheter 3, the push-pull guide wire 4, the thrombus encapsulation mechanism 5, the thrombus capture mechanism 6 and the development section 7 are preferably coaxially arranged. In the inactive condition, the above-mentioned mechanisms are all retracted in the recovery duct 1, as shown in figure 1.
In the working state, as shown in fig. 2, the thrombus encapsulation mechanism 5 is in a net structure and is in a cone shape during release, when the thrombus encapsulation mechanism 5 is released into a blood vessel, a hollow net cylinder can be formed, so that not only can the blood vessel wall be fully supported and expanded, but also the whole thrombus in the blood vessel can be sealed.
The thrombus capture mechanism 6 is of a net body structure and is in a circular cover shape during release, and when the thrombus capture mechanism 6 is released into a blood vessel, the thrombus in the blood vessel can be integrally captured and pushed into the thrombus encapsulation mechanism 5.
The mesh body structure of the thrombus packaging mechanism 5 is made of metal wires, and the metal wires can be made of stainless steel, nickel-titanium alloy, cobalt-chromium alloy, tantalum alloy, titanium alloy and other materials. The net body structure is in a net pipe shape when being contracted and in a cone cylinder shape when being released.
The net body structure of the thrombus catching mechanism 6 is made of metal wires, and the metal wires can be made of stainless steel, nickel-titanium alloy, cobalt-chromium alloy, tantalum alloy, titanium alloy and other materials. The net body structure is in a net pipe shape when being contracted and in a round cover shape when being released.
As shown in fig. 3, a part of the developing section 7 is fixedly surrounded on the push-pull guide wire 4, and the developing section 7 includes a first developing section, a second developing section and a third developing section. The material of the developing section 7 includes gold or its alloy, platinum or its alloy, tungsten or its alloy, and tantalum or its alloy.
As shown in FIG. 2, the first visualization section is arranged on the communication catheter 3 at the proximal end of the thrombus encapsulation mechanism 5. The second developing section is arranged on the push-pull guide wire 4 and at the near end of the thrombus catching mechanism 6. The third developing section is arranged on the push-pull guide wire 4 and at the far end of the thrombus catching mechanism 6.
The developing section 7 has the following main functions that (1) the developing section 7 is adopted to accurately position the thrombus encapsulation mechanism 5 and the blood vessel capture mechanism 6 in the thrombus overall removing device, and the operator can clearly observe the positions of the thrombus encapsulation mechanism 5 and the thrombus capture mechanism 6 in the blood vessel under X-ray through the arrangement of the developing section 7, and can accurately and thoroughly complete the overall capturing and removing work of the thrombus; (2) the developing section 7 is wound on the communicating conduit 3, so that the pushing and pulling capacity of the whole communicating conduit 3 can be obviously improved, the connection strength of the thrombus packaging mechanism 5 and the communicating conduit 3 can be improved, and the safety of the thrombus whole clearing device during use can be more effectively enhanced; (3) the developing section 7 is wound on the push-pull guide wire 4, so that the pushing and pulling capacity of the whole push-pull guide wire 4 can be obviously improved, the connection strength of the thrombus catching mechanism 6 and the push-pull guide wire 4 can be improved, and the safety of the whole thrombus clearing device during use can be effectively enhanced.
Example 2
The embodiment provides a working method of the thrombus overall clearing device, which comprises the following steps:
the recovery catheter 1 comprising the delivery catheter 2, the communicating catheter 3 and the push-pull guide wire 4 is sent by the control system along the blood vessel 9 to the vicinity of the thrombus 8, as shown in fig. 4;
the retrieval catheter 1 is fixed by the control system and then the delivery catheter 2 is pushed through the thrombus 8, as shown in fig. 5;
the push-pull guide wire is fixed through a control system, and the communicating catheter 3 is retracted to a proper distance under the auxiliary positioning of the developing section 7, so that the thrombus encapsulation mechanism 5 arranged on the communicating catheter 3 and the thrombus capture mechanism 6 arranged on the push-pull guide wire 4 can be accurately positioned at two ends of a thrombus 8, as shown in fig. 6;
fixing the communicating catheter 3 and the push-pull guide wire 4 by a control system, withdrawing the conveying catheter 2 to the outlet of the recovery catheter 1, and releasing a thrombus encapsulation mechanism 5 arranged on the communicating catheter 3 and a thrombus capture mechanism 6 arranged on the push-pull guide wire 4 into a blood vessel 9, wherein the thrombus encapsulation mechanism 5 is in a conical cylinder shape when released, and the thrombus capture mechanism 6 is in a circular cover shape when released, as shown in fig. 7;
fixing the recovery catheter 1, the delivery catheter 2 and the communicating catheter 3 by a control system, slowly withdrawing the push-pull guide wire 4, and in the withdrawing process, integrally capturing thrombus 8 in a blood vessel 9 by a thrombus capture mechanism 6 arranged on the push-pull guide wire 4 and pushing the whole thrombus 8 to the direction of a thrombus encapsulation mechanism 5 arranged on the communicating catheter 3, as shown in fig. 8;
the recovery catheter 1, the delivery catheter 2 and the communicating catheter 3 are fixed through a control system, and the push-pull guide wire 4 is continuously and slowly withdrawn, so that the whole captured thrombus 8 is completely pushed into the thrombus encapsulation mechanism 5 by the thrombus capture mechanism 6, and at the moment, the thrombus encapsulation mechanism 5 and the thrombus capture mechanism 6 form a closed environment, so that the whole thrombus 8 cannot escape and be broken, as shown in fig. 9;
the thrombus packaging mechanism 5, the closed thrombus 8 and the thrombus catching mechanism 6 are sequentially withdrawn into the recovery catheter 1 through the control system, and then the thrombus 8 integral removing device is completely and stably withdrawn out of the body, so that the integral removing work of the thrombus 8 is completely finished, and the blood flow in the blood vessel 9 is recovered to a normal running state, as shown in fig. 10.
The foregoing description of the specific embodiments of the invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes and modifications may be made by those skilled in the art within the scope of the appended claims without departing from the spirit of the invention.
Claims (9)
1. The thrombus integral removing device is characterized by comprising:
a recovery conduit (1);
the conveying conduit (2) is movably sleeved in the recovery conduit (1);
the communicating conduit (3) is movably sleeved in the conveying conduit (2);
the push-pull guide wire (4) is arranged on a central axis in the communicating catheter (3), moves along the direction of the central axis relative to the communicating catheter (3), and is provided with a traction end and a pushing end;
the thrombus packaging mechanism (5), the thrombus packaging mechanism (5) is fixedly arranged at the end head of the communicating catheter (3), and the thrombus packaging mechanism (5) is of a retractable net body structure;
the thrombus capturing mechanism (6), the thrombus capturing mechanism (6) is fixedly arranged on the push-pull guide wire (4) and between the pushing end and the thrombus packaging mechanism (5); and
the developing section (7) is fixedly surrounded on the communicating catheter (3) and the push-pull guide wire (4).
2. The thrombus integral removing device according to claim 1, wherein the thrombus encapsulation mechanism (5) is in a net tube shape when being contracted, and the thrombus encapsulation mechanism (5) is in a cone tube shape when being released.
3. The thrombus integral removal device according to claim 1, wherein the thrombus capture mechanism (6) is a contractible net structure.
4. The thrombus integral removing device according to claim 3, wherein the thrombus capture mechanism (6) is in a net-tube shape when contracted, and the thrombus capture mechanism (6) is in a dome shape when released.
5. The integrated thrombus removal device according to claim 1 or 3, wherein the mesh structure is a wire mesh comprising a stainless steel mesh, a nickel-titanium alloy mesh, a cobalt-chromium alloy mesh, a tantalum alloy mesh and a titanium alloy mesh.
6. The thrombus bulk removal device according to claim 1, wherein the visualization section (7) comprises a first visualization section, a second visualization section and a third visualization section.
7. The thrombus integral removal device according to claim 6, wherein the first visualization section is arranged on the communication catheter (3) at the proximal end of the thrombus encapsulation mechanism (5).
8. The thrombus overall removal device according to claim 6, wherein the second visualization section is provided on the push-pull guide wire at a proximal end of the thrombus capture mechanism (6).
9. The thrombus overall removal device according to claim 6, wherein the third visualization section is arranged on the push-pull guide wire at the distal end of the thrombus capture mechanism (6).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921302555.6U CN210903224U (en) | 2019-08-12 | 2019-08-12 | Thrombus integral removing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921302555.6U CN210903224U (en) | 2019-08-12 | 2019-08-12 | Thrombus integral removing device |
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| CN210903224U true CN210903224U (en) | 2020-07-03 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110495926A (en) * | 2019-08-12 | 2019-11-26 | 珠海中科先进技术研究院有限公司 | A kind of thrombus global purge device |
| CN114052830A (en) * | 2021-12-21 | 2022-02-18 | 启晨(上海)医疗器械有限公司 | Thrombus removing device |
-
2019
- 2019-08-12 CN CN201921302555.6U patent/CN210903224U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110495926A (en) * | 2019-08-12 | 2019-11-26 | 珠海中科先进技术研究院有限公司 | A kind of thrombus global purge device |
| CN114052830A (en) * | 2021-12-21 | 2022-02-18 | 启晨(上海)医疗器械有限公司 | Thrombus removing device |
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