CN214342499U - Active high-frequency vibration intracranial thrombus suction catheter device - Google Patents
Active high-frequency vibration intracranial thrombus suction catheter device Download PDFInfo
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- CN214342499U CN214342499U CN202022677263.XU CN202022677263U CN214342499U CN 214342499 U CN214342499 U CN 214342499U CN 202022677263 U CN202022677263 U CN 202022677263U CN 214342499 U CN214342499 U CN 214342499U
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Abstract
The utility model relates to an active high-frequency vibration intracranial thrombus suction catheter device, belonging to the technical field of medical instruments. Comprises a suction catheter, a negative pressure source, a high-frequency vibration micro-guide wire, a high-frequency vibration clamper and an active vibrator; a high-frequency vibration micro-guide wire is arranged in the suction catheter; the high-frequency vibration micro-guide wire is connected with the active vibrator through the high-frequency vibration clamp holder; a negative pressure source is connected to the aspiration conduit. The utility model discloses an increase vibrations seal wire at the suction inner chamber, supplementary blood flows fast, reduces the pipe inner wall to the viscosity of blood and change the flow state of blood in the pipe, makes blood flow fast, increases the direct suction power to the thrombus, and the seal wire that shakes simultaneously has the bits of broken glass and ties the function, can get the bolt fast, practices thrift the operation and gets the bolt time.
Description
Technical Field
The utility model relates to an active high-frequency vibration intracranial thrombus suction catheter device, belonging to the technical field of medical instruments.
Background
The stroke is one of common diseases and is characterized in that: high morbidity, high morbidity and high disability rate. The annual incidence rate of urban cerebrovascular diseases in China is 219/10 ten thousand, the annual incidence rate in rural areas is 185/10 ten thousand, and the annual incidence rate is increased year by year. The prevalence rate of cerebrovascular disease increases from 5.9 to 9.7 per thousand from 1998 to 2008. Of the surviving cerebrovascular patients, about three-quarters of patients lose labor to varying degrees. There are reports that 80% of stroke patients have varying degrees of limb dysfunction, of which 43.7% cannot take care of their lives.
rt-PA thrombolytic by intravenous injection is the only currently proven effective acute treatment for cerebral infarction. However, the intravenous thrombolytic therapy has long time, great damage to ischemic brain tissue and bleeding risk, and very low recanalization rate; the recanalization rate of basilar artery thrombolysis is only about 30%, the recanalization rate of lesion thrombolysis at the tail end of carotid artery is only 6%, and the recanalization rate of common carotid artery thrombolysis is only about 27%. And the time window for intravenous thrombolysis is only about 4 hours. From the above, the single use of venous thrombolysis for cerebral artery occlusion is far from sufficient, and the single use of venous thrombolysis is not enough to meet the actual clinical requirements.
The mechanical thrombus extraction is to convey a thrombus extractor to a lesion position and then extract thrombus out of a body through a sheath tube, and the mechanical thrombus extraction comprises the following methods: the method has the advantages that thrombus removal is thorough, but the injury to the vascular wall is excessive, so that various complications are easily caused; the method has the advantages that the operation difficulty is high, the laser energy is ineffective when the laser energy is too low, the blood vessel is damaged when the energy is too high, and various inflammations are easily caused; although the operation is simple, the thrombus-capturing net cannot be used in intracranial stenotic vessels due to large volume, and the time consumption is relatively long.
The suction thrombus is a novel thrombus extraction means at present, the time from femoral artery puncture to reperfusion can be reduced, the whole operation time is shortened, and the damage to the vascular wall is reduced. However, the aspiration and thrombus removal also have some problems, because of the restriction of the inner diameter of the catheter, the high blood viscosity, the large thrombus or the hard thrombus, the one-time aspiration thrombus is faced with the defects of time consumption, thrombus blockage of the catheter, insufficient suction force and the like during aspiration, in addition, the blood flow does not flow during aspiration, whether the thrombus is completely removed or not cannot be judged, a contrast medium needs to be injected for judgment, and when the contrast medium is injected, if the thrombus is not completely extracted, the broken thrombus is displaced under the pressure of contrast medium injection, even runs to other positions, and the thrombus removal is difficult, so that the postoperative recovery of a patient is influenced or other complications are caused. The problems encountered in the suction and thrombus removal process in the prior art are that 1, the blood viscosity is high, the flow resistance of the inner tube wall to the blood is high, and the suction time is long; 2. when the thrombus blocks the pipeline, the far end in the pipe has vacuum, so that the pressure difference between the two ends is small, and the suction force is reduced; 3. due to the high blood viscosity, the suction force is gradually reduced from the near end to the far end during suction; 4. the large ratio of the suction path to the inner cavity and the bent suction channel block the thrombus and blood flow, and the suction is difficult; therefore, there is a need in the art to solve the problems encountered in the current methods of extracting and aspirating emboli.
Disclosure of Invention
The utility model aims to solve the problems that the blood viscosity is high, the flow resistance of the inner tube wall to the blood is high, and the pumping time is long because the blood viscosity is high; 2. when the large thrombus cannot be pumped out in time, when the thrombus blocks the pipeline, the far end in the pipe has vacuum, so that the pressure difference between the two ends is small, and the suction force is reduced; 3. due to the high blood viscosity, the suction force is gradually reduced from the near end to the far end during suction; 4, because of the larger suction path-to-lumen ratio and the curved suction channel, the thrombus and blood flow are blocked, and the technical problem of difficult suction is solved.
In order to solve the problems, the technical proposal adopted by the utility model is to provide an active high-frequency vibration intracranial thrombus suction catheter device; comprises a suction catheter, a negative pressure source, a high-frequency vibration micro-guide wire, a high-frequency vibration clamper and an active vibrator; a high-frequency vibration micro-guide wire is arranged in the suction catheter; the high-frequency vibration micro-guide wire is connected with the active vibrator through the high-frequency vibration clamp holder; a negative pressure source is connected to the aspiration conduit.
Preferably, one end of the suction catheter close to the operator is provided with a three-way Y valve, and the high-frequency vibration micro-guide wire passes through the three-way Y valve and is connected with the high-frequency vibration clamp.
Preferably, the aspiration conduit is connected to a source of negative pressure through a three-way Y-valve.
Preferably, the active vibrator and the negative pressure source are in an integrated structure.
Preferably, the surface of the high-frequency vibrating micro-guide wire is provided with a hydrophilic coating.
Preferably, the length of the high-frequency vibration micro guide wire is set to 1200-2300 mm.
Preferably, the high-frequency vibration micro guide wire is made of nickel titanium or stainless steel.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model discloses an increase vibrations seal wire at the suction inner chamber, supplementary blood flows fast, reduces the pipe inner wall to the viscosity of blood and change the flow state of blood in the pipe, makes blood flow fast, increases the direct suction power to the thrombus, and the seal wire that shakes simultaneously has the bits of broken glass and ties the function, can get the bolt fast, practices thrift the operation and gets the bolt time.
Has the advantages that: 1. the utility model can change the flow state of blood in the catheter, so that laminar flow possibly formed during the suction in the catheter is changed into turbulent flow, and the blood flows rapidly; the pumping speed is higher; 2. the utility model is suitable for patients with different blood viscosity; 3. the utility model can make the suction catheter with the same inner diameter have larger direct suction force to thrombus; 4. the utility model can break thrombus and has stronger suction force to big thrombus and hard thrombus; 5. the utility model can reduce the possibility that the broken thrombus is attached to the inner wall of the catheter, namely, the escape probability of the broken thrombus is reduced, and postoperative complications are reduced; shorten the time of suction and operation and reduce the excessive blood loss of patients.
Drawings
FIG. 1 is a schematic structural view of an active high-frequency vibration intracranial thrombus aspiration catheter device of the present invention;
reference numerals: 1. a suction catheter; 2. vibrating the micro guide wire at high frequency; 3. a high-frequency vibration clamp; 4. an active vibrator; 5. a three-way Y valve; 6. a suction lumen; 7. a suction port; 8. an insulated wire.
Detailed Description
In order to make the present invention more comprehensible, preferred embodiments are described in detail below with reference to the accompanying drawings:
as shown in fig. 1, the utility model provides an active high-frequency vibration intracranial thrombus suction catheter device; comprises a suction catheter 1, a negative pressure source, a high-frequency vibration micro-guide wire 2, a high-frequency vibration clamper 3 and an active vibrator 4; a high-frequency vibration micro-guide wire 2 is arranged in the suction catheter 1; the high-frequency vibration micro-guide wire 2 is connected with an active vibrator 4 through a high-frequency vibration clamper 3; a source of negative pressure is connected to the aspiration catheter 1. One end of the suction catheter 1 close to an operator is provided with a three-way Y valve 5, and the high-frequency vibration micro-guide wire 2 passes through the three-way Y valve 5 and is connected with the high-frequency vibration clamp holder 3. The high-frequency vibration clamper 3 is connected with the active vibrator 4 through an insulated wire 8. The suction catheter 1 is connected to a negative pressure source via a three-way Y-valve 5. The three-way Y-valve 5 is provided with a suction port 7, and the suction catheter 1 is connected to a negative pressure source through the suction port 7. The active vibrator 4 and the negative pressure source may be formed in an integrated structure. The surface of the high-frequency vibration micro-guide wire 2 is provided with a hydrophilic coating. The length of the high-frequency vibration micro-guide wire 2 is set to 1200-2300 mm. The high-frequency vibration micro-guide wire 2 is made of nickel titanium or stainless steel.
The utility model discloses major structure mainly comprises five parts: a suction catheter 1, a high-frequency vibration micro-guide wire 2, a three-way Y valve 5, a high-frequency vibration clamper 3 and an active vibrator 4.
The main functions of each part are as follows: the suction catheter 1 reaches the lesion site, providing a suction lumen 6; the high-frequency vibration micro guide wire 2 plays a role in guiding the suction catheter 1 to be in place and vibrating in the suction catheter 1, so that the blood flowing state in the catheter is changed; the three-way Y valve 5 plays a role in connecting a suction negative pressure source and the high-frequency vibration micro guide wire 2; the high-frequency vibration clamp 3 is a vibration source and has an insulation function; the active vibrator 4 provides a vibration power.
The utility model discloses the leading principle: the large suction path to lumen ratio, the tortuous suction path, and the high blood viscosity and catheter viscosity effect on the blood, lead to difficulties in suction; through increase vibrations seal wire at the suction inner chamber, supplementary blood flows fast, reduces the pipe inner wall to the viscosity of blood and change the flow state of blood in the pipe, makes blood flow fast, increases the direct suction power to the thrombus, and the seal wire that shakes simultaneously has the bits of broken glass function, makes the time of emboliaing reduce by a wide margin.
The utility model discloses the use: the suction catheter 1 is guided to be in place by using the high-frequency vibration micro guide wire 2, then a suction port 7 of a three-way Y valve 5 is connected with a negative pressure source, the tail end of the high-frequency vibration micro guide wire 2 is connected with a high-frequency vibration clamp 3, the negative pressure source is opened for suction, a switch of the high-frequency vibration clamp 3 is opened when suction is difficult, the high-frequency vibration micro guide wire 2 is vibrated during suction, blood circulation is increased, meanwhile, the high-frequency vibration micro guide wire 2 can be moved, thrombus is moved in the catheter and plays a role of thrombus breaking, and after suction is finished, the suction catheter 1 and the micro guide wire 2 are withdrawn from the body together.
Example 1
1. The high-frequency vibration micro-guide wire is made of nickel-titanium wires, the length of the high-frequency vibration micro-guide wire is 2000mm, and a hydrophilic coating is coated on the surface of the high-frequency vibration micro-guide wire;
2. the high-frequency vibration micro-guide wire is connected with the insulation vibration clamp holder through a three-way Y valve;
3. the suction port of the three-way Y valve is connected with a negative pressure source;
4. the high-frequency vibration clamp holder is connected with the vibrator.
Example 2
1. The high-frequency vibration micro-guide wire is made of a nickel-titanium wire, the length of the high-frequency vibration micro-guide wire is 1300mm, and a hydrophilic coating is coated on the surface of the high-frequency vibration micro-guide wire;
2. the high-frequency vibration micro-guide wire is connected with the insulation vibration clamp holder through a three-way Y valve;
3. the high-frequency vibration clamp holder is connected with a single device with both vibration function and suction function, and the suction port of the three-way Y valve is connected with the device with both vibration function and suction function.
Example 3
1. The high-frequency vibration micro-guide wire is made of stainless steel, the length of the high-frequency vibration micro-guide wire is 1800mm, and a hydrophilic coating is coated on the surface of the high-frequency vibration micro-guide wire;
2. the high-frequency vibration micro-guide wire is connected with the insulation vibration clamp holder through a three-way Y valve;
3. the high-frequency vibration clamp holder is connected with a single device with both vibration function and suction function, and the suction port of the three-way Y valve is connected with the device with both vibration function and suction function.
The foregoing is merely a preferred embodiment of the present invention, and is not intended to limit the present invention in any way and in any way, and it should be understood that modifications and additions may be made by those skilled in the art without departing from the scope of the present invention. Those skilled in the art can make various changes, modifications and evolutions equivalent to those made by the above-disclosed technical content without departing from the spirit and scope of the present invention, and all such changes, modifications and evolutions are equivalent embodiments of the present invention; meanwhile, any changes, modifications and evolutions of equivalent changes to the above embodiments according to the actual technology of the present invention are also within the scope of the technical solution of the present invention.
Claims (7)
1. An active high-frequency vibration intracranial thrombus suction catheter device is characterized in that: comprises a suction catheter, a negative pressure source, a high-frequency vibration micro-guide wire, a high-frequency vibration clamper and an active vibrator; a high-frequency vibration micro-guide wire is arranged in the suction catheter; the high-frequency vibration micro-guide wire is connected with the active vibrator through the high-frequency vibration clamp holder; a negative pressure source is connected to the aspiration conduit.
2. The active high-frequency vibrating intracranial thrombus aspiration catheter device of claim 1, wherein: and one end of the suction catheter, which is close to an operator, is provided with a three-way Y valve, and the high-frequency vibration micro guide wire passes through the three-way Y valve and is connected with the high-frequency vibration clamp holder.
3. The active high-frequency vibrating intracranial thrombus aspiration catheter device of claim 2, wherein: the suction catheter is connected with a negative pressure source through a three-way Y valve.
4. The active high-frequency vibrating intracranial thrombus aspiration catheter device of claim 3, wherein: the active vibrator and the negative pressure source are of an integrated structure.
5. The active high-frequency vibrating intracranial thrombus aspiration catheter device of claim 4, wherein: and a hydrophilic coating is arranged on the surface of the high-frequency vibration micro-guide wire.
6. The active high-frequency vibrating intracranial thrombus aspiration catheter device according to claim 5, wherein: the length of the high-frequency vibration micro guide wire is set to 1200-2300 mm.
7. The active high-frequency vibrating intracranial thrombus aspiration catheter device of claim 6, wherein: the high-frequency vibration micro guide wire is made of nickel titanium or stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022677263.XU CN214342499U (en) | 2020-11-18 | 2020-11-18 | Active high-frequency vibration intracranial thrombus suction catheter device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022677263.XU CN214342499U (en) | 2020-11-18 | 2020-11-18 | Active high-frequency vibration intracranial thrombus suction catheter device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113907839A (en) * | 2021-11-24 | 2022-01-11 | 西安交通大学医学院第二附属医院 | Support thrombectomy device with thrombus capture component |
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2020
- 2020-11-18 CN CN202022677263.XU patent/CN214342499U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113907839A (en) * | 2021-11-24 | 2022-01-11 | 西安交通大学医学院第二附属医院 | Support thrombectomy device with thrombus capture component |
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