CN220588318U - Vascular thrombus clearing device - Google Patents
Vascular thrombus clearing device Download PDFInfo
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- CN220588318U CN220588318U CN202321721650.6U CN202321721650U CN220588318U CN 220588318 U CN220588318 U CN 220588318U CN 202321721650 U CN202321721650 U CN 202321721650U CN 220588318 U CN220588318 U CN 220588318U
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- 208000007536 Thrombosis Diseases 0.000 title claims abstract description 67
- 230000002792 vascular Effects 0.000 title claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 230000017531 blood circulation Effects 0.000 claims abstract description 18
- 238000004140 cleaning Methods 0.000 claims abstract description 16
- 239000007788 liquid Substances 0.000 claims abstract description 16
- 239000008223 sterile water Substances 0.000 claims abstract description 8
- 239000012620 biological material Substances 0.000 claims description 3
- 210000004204 blood vessel Anatomy 0.000 abstract description 16
- 239000008280 blood Substances 0.000 abstract description 8
- 210000004369 blood Anatomy 0.000 abstract description 8
- 238000011282 treatment Methods 0.000 abstract description 6
- 238000012377 drug delivery Methods 0.000 abstract description 4
- 230000006978 adaptation Effects 0.000 abstract description 3
- 238000000926 separation method Methods 0.000 abstract description 3
- 208000004043 venous thromboembolism Diseases 0.000 description 7
- 206010014522 Embolism venous Diseases 0.000 description 5
- 239000003814 drug Substances 0.000 description 5
- 208000005189 Embolism Diseases 0.000 description 4
- 208000001435 Thromboembolism Diseases 0.000 description 4
- 230000010100 anticoagulation Effects 0.000 description 4
- 230000000004 hemodynamic effect Effects 0.000 description 4
- 206010047249 Venous thrombosis Diseases 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
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- 238000000034 method Methods 0.000 description 3
- 206010051055 Deep vein thrombosis Diseases 0.000 description 2
- 208000010378 Pulmonary Embolism Diseases 0.000 description 2
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- 239000002906 medical waste Substances 0.000 description 2
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- 210000004026 tunica intima Anatomy 0.000 description 2
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- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
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- 238000011841 epidemiological investigation Methods 0.000 description 1
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- 239000003527 fibrinolytic agent Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
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- Surgical Instruments (AREA)
Abstract
The utility model discloses a vascular thrombus removing device, which consists of a removing system and an auxiliary system, wherein: the cleaning system is a hollow pipe which is divided into a head section, a middle section and a tail section, and the diameter of the head section is larger than that of the tail section; the straight cutters and the inclined cutters are symmetrically arranged at the end ports of the head section, liquid ports are symmetrically arranged, and the middle of the end ports of the head section is provided with an inhalation pipe cavity; a unidirectional blood flow filter screen is arranged at the junction of the middle section and the tail section, and the hollow tube of the middle section is narrowed at the unidirectional blood flow filter screen and then reaches the tail section; a straight cutter propeller and an oblique cutter propeller which control the rotation of the straight cutter and the oblique cutter are arranged on the outer wall of the hollow pipe from the narrowed tail section; the auxiliary system comprises a negative pressure aspirator which is connected with the thrombus collecting box through a negative pressure pipe, and also comprises a sterile water tank, a liquid inlet pipe, a water pump and a power supply. The device has the advantages of multiple-angle thrombus stripping, thrombus blood separation, adaptation to complex shapes of blood vessels, independent use as a drug delivery sheath, convenient and flexible operation, high efficiency of minimally invasive treatment and low cost.
Description
Technical Field
The utility model belongs to medical auxiliary instruments, and particularly relates to a vascular thrombus removing device which has the functions of multi-angle thrombus stripping, thrombus blood separation, adaptation to complex shapes of blood vessels and independent use as a drug delivery sheath, and is suitable for patients with different thrombus degrees and blood vessel inner diameter sizes.
Background
The damage caused by venous thrombosis is mainly reflected in the progressive and sudden nature of the thrombus, in general, the thrombus is hidden, the disease development is slow, the early stage of the disease does not have too many symptoms, many people miss the optimal treatment time, and serious people can even directly cause death if not treated in time. Venous thromboembolism (Venous thromboembolism, VTE), which includes deep vein thrombosis and pulmonary embolism, is the third most common cause of vascular-related death following myocardial infarction and stroke, and places a serious public health burden on society. About 1000 or more tens of thousands of people worldwide are reported to suffer from venous thromboembolism each year. Pulmonary embolism is a common cause of cardiovascular disease death worldwide, and is one of the main threats of the aging population, and epidemiological investigation published in the journal of medicine in the United states has recently shown that the incidence of deep venous thrombosis is 88-112 per 10 ten thousand per year, increases with age, and the recurrence rate of venous thromboembolism is 20% -36% within 10 years after the first illness. Anticoagulation is the primary treatment for most patients with venous thromboembolism, but its inherent limitations reduce the therapeutic effect. Anticoagulation is the basic treatment of acute symptomatic VTE, which should be initiated as early as possible to prevent thrombus spread and promote vascular recanalization. However, the simple anticoagulation treatment has the advantages of lower thrombus load improvement rate, lower vascular recanalization rate, lower complete recanalization rate, and no complete removal of thrombus in an acute phase, and along with chronic organization and intimation of the thrombus, not only is the anticoagulation effect weakened, but also the organized thrombus occupies a lumen, so that an effective lumen is lost, and vein trunk sponginess, vein stenosis and occlusion are caused to cause venous hypertension. It follows that not only is the window narrowed treated with the drug, but the patient's response varies depending on a number of factors, including diet and concomitant medication, and thus the individual differences in administration are large. In recent years, along with the development of novel thrombus removal devices, thrombus removal devices have been widely used in limb thrombus treatment because of their ability to remove thrombus with high efficiency, reduced thrombolytic drug dosage and bleeding risk. The instrument has the advantages of quick effect, accurate positioning and small side effect when assisting thrombus removal, and does not have biochemical invasion of similar medicaments to non-target areas. However, the existing apparatus has more or less technical dead zones, and cannot effectively complete the cleaning task, and a vascular thrombus cleaning system capable of efficiently completing thrombus cleaning is needed.
Therefore, the existing vascular thrombus removal system is not satisfactory to solve the medical, teaching and research problems in the current field, and a removal device suitable for patients with different thrombus degrees and blood vessel inner diameters needs to be designed, so that the diagnosis rate of thromboembolism type is enlarged.
Disclosure of Invention
In order to overcome the defects or shortcomings in the prior art, the utility model aims to provide a vascular thrombus removing device.
In order to achieve the above task, the present utility model adopts the following technical solutions:
a vascular thrombi removal device comprising a removal system and an auxiliary system, wherein:
the cleaning system is a hollow pipe, the hollow pipe is divided into a head section, a middle section and a tail section, and the diameter of the head section is larger than that of the tail section;
the straight cutters and the oblique cutters are symmetrically arranged at the ports of the head section, liquid ports are symmetrically arranged at the two sides of the straight cutters and the oblique cutters, and an inhalation pipe cavity is arranged in the middle of the ports of the head section;
a unidirectional blood flow filter screen is arranged at the junction of the middle section and the tail section, and the hollow tube of the middle section is narrowed at the unidirectional blood flow filter screen and then reaches the tail section; a straight cutter propeller and an oblique cutter propeller which control the rotation of the straight cutter and the oblique cutter are arranged on the outer wall of the hollow pipe from the narrowed tail section;
the auxiliary system comprises a negative pressure aspirator, wherein the negative pressure aspirator is connected with a thrombus collecting box through a negative pressure pipe, and the auxiliary system also comprises a sterile water tank, a water pump and a power supply, wherein the water pump is provided with a liquid inlet pipe.
The hollow tube is made of a tough biological material.
The vascular thrombus removing device has the functions of separating thrombus at multiple angles, separating thrombus blood, adapting to complex shapes of blood vessels and being independently used as a drug delivery sheath. And the operation is flexible and convenient, the treatment is minimally invasive and efficient, and the cost is low and reasonable.
Drawings
FIG. 1 is a hemodynamic schematic of a normal blood vessel and a thromboembolism, wherein (a) is a schematic of normal blood vessel and stable hemodynamics and (b) is a schematic of thromboembolism and turbulence hemodynamics;
FIG. 2 is a schematic view of the external appearance of the cleaning system according to the present utility model; wherein, the upper left view is a front view, the lower left view is a top view, the upper right view is a head section view (left view), and the lower right view is a tail section view (right view);
FIG. 3 is a schematic diagram of the internal structure of the purging system of the present utility model;
FIG. 4 is a schematic diagram of an auxiliary system configuration of the present utility model;
the marks in the figures represent: 1. suction lumen, 2, straight knife propeller, 3, oblique knife propeller, 4, unidirectional blood flow filter screen, 5, straight knife, 6, oblique knife, 7, liquid port, 8, negative pressure aspirator, 9, negative pressure tube, 10, thrombus collecting box, 11, sterile water tank, 12, water pump, 13, liquid inlet tube, 14, power supply.
The present utility model will be described in further detail with reference to the accompanying drawings and examples.
Detailed Description
The present embodiment provides a vascular thrombus removal device, which is composed of a removal system and an auxiliary system, wherein:
the cleaning system is a hollow pipe, the hollow pipe is divided into a head section, a middle section and a tail section, and the diameter of the head section is larger than that of the tail section; a straight cutter 5 and an inclined cutter 6 are symmetrically arranged at the end opening of the head section, liquid openings 7 are symmetrically arranged at the two sides of the straight cutter 5 and the inclined cutter 6, and a suction lumen 1 is arranged in the middle of the end opening of the head section; a unidirectional blood flow filter screen 4 is arranged at the junction of the middle section and the tail section, and the hollow tube of the middle section is narrowed at the unidirectional blood flow filter screen 4 and then reaches the tail section; a straight cutter propeller 2 and an inclined cutter propeller 3 which control the rotation of a straight cutter 5 and an inclined cutter 6 are arranged on the outer wall of the hollow pipe from the narrowed tail section; the removal system has the advantages of multiple-angle thrombus removal, thrombus blood separation, adaptation to complex shapes of blood vessels, and independent use as a drug delivery sheath;
the auxiliary system comprises a negative pressure aspirator 8, a thrombus collecting box 10, a sterile water tank 11, a water pump 12, a liquid inlet pipe 13, a negative pressure pipe 9 and a power supply 14, and is used for being matched with a clearing system in the operation process of clearing vascular thrombus.
The following is a specific implementation procedure of the vascular thrombus removal device.
Normal blood vessel and thromboembolism
The vascular thrombus removing device of the embodiment is suitable for the blood vessel with complex structure and zigzag shape.
As shown in fig. 1 (a), the normal vessel lumen is thrombus-free, the intima is smooth, and the blood flow dynamics is stable; the thrombus-occluded vessel shown in FIG. 1 (b) has rough intima, tortuous shape, and hemodynamic disturbance. Through the thrombus removing operation of the vascular thrombus removing device, the blood vessel is smooth and the blood flow dynamics are stable.
(II) cleaning System
The appearance of the scavenging system is shown in fig. 2, the scavenging system is a hollow pipe made of ductile biological material, and the outer surface is smooth. For easy understanding, the hollow tube is integrally divided into a head section, a middle section and a tail section; the diameter of the head section is larger than that of the tail section, and a straight cutter 5, a liquid port 7 and an inclined cutter 6 are symmetrically distributed at the end opening of the head section; a unidirectional blood flow filter screen 4 is arranged at the junction of the middle section and the tail section; the hollow tube narrows to a tail section at the unidirectional blood flow filter screen 4; on the outer wall of the hollow pipe from the narrowed end to the tail section, a straight cutter propeller 2 and an inclined cutter propeller 3 are arranged for controlling the rotation of a straight cutter 5 and an inclined cutter 6. When in use, the head section of the hollow tube enters the blood vessel, the unidirectional blood flow filter screen 4 is positioned in the blood vessel, and the straight knife propeller 2 and the inclined knife propeller 3 are arranged outside the body, so that a doctor can adjust the sizes and angles of the straight knife 5 and the inclined knife 6.
In this embodiment, the suction lumen 1 of the anterior hollow tube is used for collecting larger thrombus, and is narrowed at the unidirectional blood flow filter screen 4, and is used for filtering the blood in the lumen of the hollow tube along with the thrombus, so as to minimize the blood loss of a patient during operation and collect the thrombus, reduce the migration of the thrombus in the body, and cause obstruction of other parts.
The internal structure of the cleaning system is shown in fig. 3, and specifically includes:
(1) head section: the device is provided with three parts, namely a straight cutter 5, a liquid port 7 and an inclined cutter 6, which are symmetrically distributed at the upper end and the lower end of the hollow tube, and the middle of the head section is provided with a suction tube cavity 1;
(2) middle section: the unidirectional blood flow filter screen 4 is arranged at the junction of the lumen of the middle hollow tube and the lumen of the tail section, so that the hollow tube is narrowed at the unidirectional blood flow filter screen 4, and the residual external space allows filtered blood to flow away;
(3) tail section: the straight knife propeller 2 and the inclined knife propeller 3 are arranged, the straight knife propeller is positioned outside a patient in operation, and the angle and the size of the straight knife 5 and the inclined knife 6 can be adjusted according to the thrombus shape of the blood vessel.
(III) auxiliary System
As shown in fig. 4, the auxiliary system comprises a negative pressure aspirator 8, wherein the negative pressure aspirator 8 is connected with a thrombus collecting box 10 through a negative pressure pipe 9, a sterile water tank 11, a water pump 12, a liquid inlet pipe 13 on the water pump 12 and a power supply 14. Wherein, the thrombus collecting box 10 is connected with the hollow tube cavity of the tail section of the cleaning system, and the stripped thrombus is recovered by the negative pressure aspirator 8. The sterile water tank 11 is powered by the water pump 12, sterile saline is pumped into a cleaning system of the vascular thrombus cleaning device through the liquid inlet pipe 13, and then flows out from the liquid outlet 7 at the front section of the hollow pipe to flush the vascular lumen and thrombus, so that negative pressure recovery is facilitated. The power supply 14 provides power for the water pump 12 and the negative pressure aspirator 8.
Specific application of vascular thrombus removing device
The vascular thrombosis removing device provided by the embodiment belongs to an auxiliary instrument for surgical operation, and is required to be operated strictly according to the operation flow before the operation is performed. Before the vascular thrombus removing device is used, whether the vascular thrombus removing device is complete or not is checked, whether connection between all connecting ports is tight or not is judged, then the thrombus blocking degree is determined under the visual means such as ultrasonic or MRI, and the puncture point and the entering depth of the vascular thrombus are selected. And the marking pen is used for drawing the approximate thrombus position on the skin of the patient, so that misoperation is avoided. The posture is adjusted according to the body type and thrombus position of the patient, and the patient can sit on the bed. According to the distribution of thrombus in blood vessel and the inner diameter of blood vessel, the angle and the size of the straight and oblique blade propellers are adjusted, thrombus cleaning operation is carried out in the reverse blood flow direction, and the operation mode of cleaning thrombus while flushing with sterile water and recovering under negative pressure is adopted. If the patient has vascular intima injury, the device can be used for injecting the medicine into the liquid inlet, and the straight and oblique knife propeller is adjusted to uniformly smear the medicine on the vascular intima injury, and meanwhile, the blood loss of the patient is concerned. After the operation is finished, the extraction device performs wound suturing, disinfection and binding, and the used cleaning system is recovered according to a medical waste treatment method, so that medical waste pollution is avoided.
(V) device maintenance
The vascular thrombus removing device provided by the embodiment is a medical instrument, and needs strict aseptic sealing and is placed at a cool, dry and ventilated place. Before use, the skin near the target area of the thrombus of the patient needs to be disinfected and spread according to the strict operation rule. Medical instruments and waste materials are recovered after operation according to hospital sensing and control regulations. After the operation is finished, the power is cut off, and the articles are put back.
Claims (2)
1. A vascular thrombi removal device comprising a removal system and an auxiliary system, wherein:
the cleaning system is a hollow pipe, the hollow pipe is divided into a head section, a middle section and a tail section, and the diameter of the head section is larger than that of the tail section;
the straight cutters and the oblique cutters are symmetrically arranged at the ports of the head section, liquid ports are symmetrically arranged at the two sides of the straight cutters and the oblique cutters, and an inhalation pipe cavity is arranged in the middle of the ports of the head section;
a unidirectional blood flow filter screen is arranged at the junction of the middle section and the tail section, and the hollow tube of the middle section is narrowed at the unidirectional blood flow filter screen and then reaches the tail section; a straight cutter propeller and an oblique cutter propeller which control the rotation of the straight cutter and the oblique cutter are arranged on the outer wall of the hollow pipe from the narrowed tail section;
the auxiliary system comprises a negative pressure aspirator, wherein the negative pressure aspirator is connected with a thrombus collecting box through a negative pressure pipe, and the auxiliary system also comprises a sterile water tank, a water pump and a power supply, wherein the water pump is provided with a liquid inlet pipe.
2. The vascular thrombi removal device of claim 1, wherein said hollow tube is made of a flexible biomaterial.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321721650.6U CN220588318U (en) | 2023-07-03 | 2023-07-03 | Vascular thrombus clearing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321721650.6U CN220588318U (en) | 2023-07-03 | 2023-07-03 | Vascular thrombus clearing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220588318U true CN220588318U (en) | 2024-03-15 |
Family
ID=90168271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321721650.6U Active CN220588318U (en) | 2023-07-03 | 2023-07-03 | Vascular thrombus clearing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220588318U (en) |
-
2023
- 2023-07-03 CN CN202321721650.6U patent/CN220588318U/en active Active
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