CN105342668A - Suction catheter for sucking thrombotic substances - Google Patents
Suction catheter for sucking thrombotic substances Download PDFInfo
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- CN105342668A CN105342668A CN201510911635.1A CN201510911635A CN105342668A CN 105342668 A CN105342668 A CN 105342668A CN 201510911635 A CN201510911635 A CN 201510911635A CN 105342668 A CN105342668 A CN 105342668A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0043—Catheters; Hollow probes characterised by structural features
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0067—Catheters; Hollow probes characterised by the distal end, e.g. tips
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0067—Catheters; Hollow probes characterised by the distal end, e.g. tips
- A61M25/0082—Catheter tip comprising a tool
- A61M25/0084—Catheter tip comprising a tool being one or more injection needles
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/0105—Steering means as part of the catheter or advancing means; Markers for positioning
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B2017/22038—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for with a guide wire
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B2017/22038—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for with a guide wire
- A61B2017/22042—Details of the tip of the guide wire
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B2017/22079—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for with suction of debris
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- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- General Health & Medical Sciences (AREA)
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- Hematology (AREA)
- Pulmonology (AREA)
- Biophysics (AREA)
- Surgery (AREA)
- Orthopedic Medicine & Surgery (AREA)
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- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
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- Media Introduction/Drainage Providing Device (AREA)
Abstract
The invention relates to a suction catheter for sucking thrombotic substances, which comprises a front-end catheter, wherein the front-end catheter is composed of a spring tube, a polyurethane tube and a coating; the spring tube is provided with a developing head and is also provided with a suction region and an observation region; a suction hole is formed in the left part of the polyurethane tube; a metal wire penetrating through the front-end catheter is arranged in the front-end catheter; the right end of the front-end catheter is connected with a connecting tube; the right end of the connecting tube is connected with a two-way valve; a cylindrical valve plug is arranged at the upper part of the two-way valve; a threaded connector is arranged at the right part of the two-way valve; the threaded connector is connected with a rear-end catheter through threads; threaded butt joints matched with the threaded connector are respectively arranged at the left part and right part of the rear-end catheter; and the right part of the rear-end catheter is connected with a suction syringe through threads. The suction catheter is simple in structure, convenient in operation, low in manufacturing cost, convenient in clinical use, and capable of effectively eliminating thrombi and cataclastic atheromatous plaques in coronary arteries, recovering coronary artery blood flow and myocardial tissue perfusion as well as recovering cardiac functions.
Description
Technical field
The invention belongs to technical field of medical instruments, be specifically related to a kind of suction catheter for aspirate thrombi material.
Background technology
The generation of the postoperative slow blood flow of PCI or No-reflow phenoment, it is the bad most common cause of the damage of AMI patient's myocardial microvascular and Reperfu-sion, it can make postoperative infraction and other complication again obviously increase, at present, even if use the thromboembolism preventing scheme of strengthening, its distal embolization, slow blood flow and No-reflow phenoment incidence rate still can reach 7% ~ 10%, become the key factor affecting emergency PCI effect, also be the independent factor affecting patient's long-term prognosis simultaneously, there are some researches show, fluoride-free flux is myocardial infarction area, one of independent predictor of short-term and long-term mortality, the main cause of fluoride-free flux is in PCI, be extruded the atheromatous plaque that comes off and thrombosis blocking PCI open after distal vessels, after No-reflow phenoment often betides the larger AMI patient's row reperfusion as treatment of thrombosis load, comprise thrombolytic and PTCA or and STENTS, thrombus suction catheter and correlation technique thereof, it is a kind of mechanicalness treatment means of rising in recent years, effectively can remove rapidly infraction arteria coronaria Intravascular Thrombus, improve arteria coronaria Distal blood flow, recover myocardial cell Reperfu-sion, fast and effeciently recover the cardiac muscle of infraction relevant blood vessel blood flow and redemption ischemic necrosis, recover cardiac function, reduce the generation of Main adverse cardiovascular event, well recent and long-term effect is had to treatment Acute Myocardial Infarction Patients, and, clinical practice shows, after adopting thrombus suction catheter to aspirate, there is the case of 2/3 without the need to carrying out balloon pre-dilation and can direct implant frame, cost savings medical expense.
For promoting the result of use of thrombus suction catheter further, a series of improvement has been carried out for it, also create new technology: as patent CN104706401A discloses a kind of aspirator, comprise metal sheath, peeling knife and dilator, metal sheath comprises metallic coil and the anti-cap that backflows;
Patent CN104586470A discloses a kind of thrombus suction catheter, comprise the catheter body comprising suction chamber and the guidewire lumen being arranged on catheter body end of travel, guidewire lumen is positioned at the distal medial of suction chamber, is communicated with suction chamber, seal wire enters from guidewire lumen, passes through suction chamber;
Patent CN104758029A discloses a kind of thrombus suction catheter, comprises suction catheter body, seal wire, female Luer, thrombosis stripping bracket etc. containing cutting blade;
Patent CN104874033A discloses a kind of novel thrombus suction catheter, comprises the part such as netting suction tube main body and netting suction tube head end, lead-in cavity, female Luer, suction pump;
Patent 104984461A discloses a kind of thrombus suction catheter, comprises the parts such as suction chamber, guidewire lumen, utricule, utricule pressurizing channel and base;
Patent CN101389371B discloses a kind of dual lumen aspiration catheter system, there is suction catheter, hub and flexible strain relief device and suction assembly, comprise multiple flexible tubular member connected successively, as multiple tube, intervalve, double lumen tube and flexible end pipe, form large chamber and the loculus of colocated prejudicially, to provide minimum cross section, comprise the bevel edge of protrusion, have the contact of minimally invasive either individually or in combination with blood vessel wall;
Patent CN1893997B relates to a kind of suction catheter, there is the suction catheter for the suction lumen and conductor rod aspirating material, wherein, suction lumen is communicated with the lining of catheter-based side, and has removable heart yearn in the inside of suction lumen, makes it have enough aspirations, and to bending blood vessel, also there is the flexibility of fully following, when from external insertion guiding catheter, the probability that catheter shaft is bending reduces, and operability is excellent;
Patent CN101193679B discloses a kind of by conduit being inserted blood vessel to aspirate and to remove the aspiration catheter system of thrombosis, it has catheter component and conduit axle, tubular element is inserted into the tubular portion of conduit axle, the far-end of tubular element stretches out the far-end of the tubular portion of conduit axle to form the suction entrance of thrombosis, the near-end of tubular element is in conduit axle, the interior spatial joins of tubular element to the interior space of conduit axle, simultaneously from portions of proximal aspirate thrombi or the liquid medicine injection of the tubular portion of conduit axle;
Patent CN102319097A discloses thrombus suction catheter and using method thereof, comprises suction tube and base, base connecting duct, and sleeve pipe comprises Y type union joint, double lumen tube and sacculus, and Y type union joint connects double lumen tube, and sacculus is arranged on the far-end outer wall of double lumen tube; Interference tinsel can be inserted in suction tube, disturb outside the far-end of the extended suction tube of far-end wiry.Sleeve pipe is arranged at outside suction tube movably, can not be subject to sacculus restriction when making suction tube movable, can remove the thrombosis and the microvascular thromboembolism of process arteria coronaria tip that are dispersed in blood vessel extensive region fast; When running into the large and heavy bodied thrombosis of volume, aspirating again after interference tinsel can be utilized to break up thrombosis, the thrombosis inhaled compared with hard-pumped can be processed;
Patent CN103932756A discloses a kind of Biochemical analyzer system, comprise the Blood bottle of thrombus suction catheter and supporting connection with it, its thrombus suction catheter adopts ultra-thin tube wall, roomy inner chamber and single lumen cannula design, smooth and easy efficient performance during guarantee Biochemical analyzer, taper pipeline section distal face outer rim is rounding horn shape, be convenient to the overall intravasation of thrombus suction catheter, reduce the damage to human body, far-end is provided with the oval side opening of Spiral distribution, be convenient to aspirate thrombosis larger in blood vessel smoothly, with the situation that the thrombosis preventing volume larger cannot aspirate, make the Biochemical analyzer in blood vessel complete, reach best therapeutic effect,
According to the analysis to thrombus suction catheter existing on market, and the analysis to the patented technology announced or authorize, we are not difficult to find, current suction catheter ubiquity composition complicated structure, manufacturing process is more loaded down with trivial details, cost of manufacture is higher, clinician operates the problems such as inconvenience, therefore, develop a kind of structure simple, easy to operate, cost of manufacture is low, Clinical practice is convenient, effectively can remove coronary thrombosis and cracked atheromatous plaque again, recover coronary flow and Myocardial tissue perfusion, the suction catheter for aspirate thrombi material recovering cardiac function has great importance.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, and provide a kind of structure simple, easy to operate, cost of manufacture is low, Clinical practice is convenient, effectively can remove coronary thrombosis and cracked atheromatous plaque again, recover coronary flow and Myocardial tissue perfusion, recover the suction catheter for aspirate thrombi material of cardiac function.
The object of the present invention is achieved like this: a kind of suction catheter for aspirate thrombi material, it comprises nose catheter, described nose catheter is by bourdon tube and to be arranged on bourdon tube outer wall and to consist of the polyurethane tube of high frequency heat close adhesion and the coating be arranged on bourdon tube inwall with bourdon tube, the caliber of bourdon tube left part is for increase structure gradually, the left end of bourdon tube is provided with developing head, the left part of bourdon tube and right part are respectively arranged with suction district and observation area, the left part of described polyurethane tube is provided with the suction socket matched with suction district, the tinsel run through with nose catheter is provided with in nose catheter, the right-hand member of nose catheter is connected with connection tube, the right-hand member of described connection tube is connected with two-port valve, the top of described two-port valve is provided with cylindricality valve plug, the right part of two-port valve is provided with threaded connector, described threaded connector has been threaded connection rear end conduit, the left part of described rear end conduit and right part are provided with the screw thread butt joint matched with threaded connector, the right part of rear end conduit has been threaded connection aspirating syringe.
Described bourdon tube is the stainless steel silk of 0.15-0.25 millimeter by diameter, and adopt bifilar parallel connection, the rustless steel thread bullet reed pipe made by Mechanical entanglement.
Described coating is macromolecule silicone rubber coating, and the thickness of coating is 0.03-0.05 millimeter.
Described developing head is that stainless steel metal wire bends and suppresses the developing head that length is 1-2 millimeter.
Described suction district and observation area are all that the flight pitch by expanding bourdon tube obtains, and the flight pitch of suction district is 0.8-2.0 millimeters, and length is 6-12 millimeters, and the flight pitch of observation area is 1.5-2.0 millimeters, and length is 5-6 millimeters.
The quantity of described suction socket is two, and two suction socket are for being symmetrical arranged, and the length of suction socket is 6-12 millimeters.
The middle part of described cylindricality valve plug is provided with central through-hole hole.
Described tinsel is the stainless steel silk of diameter within the scope of 0.18-0.28 millimeter.
Described developing head is 5-7 millimeters apart from the spacing of suction district, and developing head is 900-1000 millimeters apart from the spacing of observation area.
The internal diameter of described nose catheter is 0.75-0.98 millimeter, and external diameter is 1.30-1.60 millimeter, and length is 1300-1500 millimeter.
Beneficial effect of the present invention: the present invention in use, by femoral artery or radial artery puncturing, nose catheter is inserted tremulous pulse, reach pathological changes (thromboembolism) position of heart, tinsel is extracted out from nose catheter, by pulling aspirating syringe, thrombosis and speckle are extracted out, repetitive operation is until complete suction, the present invention use 304 or the stainless steel silk of 316L as making bourdon tube and material wiry, and adopt polypropylene, polyethylene or makrolon material form two-port valve, polyethylene or makrolon material is adopted to form connection tube, polyether polyurethane material is adopted to form polyurethane tube and rear end conduit, adopt front end with the common medical syringe of spiral interface as aspirating syringe, all general stainless steel silk and common plastics for these materials, low cost of manufacture, low price, common people can be consumed, and global design structure is simple, easy to operate, fast, can effectively remove coronary thrombosis and cracked atheromatous plaque within a short period of time, the main part that the present invention enters the nose catheter of human body is bourdon tube, and bourdon tube adopts the stainless steel metal wire of bifilar parallel connection, and made by Mechanical entanglement, the processing technology of this bourdon tube is simple, can complete in many enterprises, the woven tube of wire that the body avoiding thrombus suction catheter in the market adopts, this conduit makes and is not easy, require high to processing technology, also high to equipment requirements, can only in the production and processing of only a few enterprise, in addition, be not easy to be crushed with bourdon tube, can be provided in the negative pressure of suction and use, also can both ensure that body can not flatten in daily transport and in using, in addition, have employed 304 and 316L stainless steel silk for food and medical industry, ensure that the safety of product, the present invention is at the forefront of nose catheter, the developing head that length is 1-2 millimeter is suppressed with the stainless steel metal wire making bourdon tube is directly bending, the developing head improving current suction catheter adopts in plastic syringe to clog the way of metal segments as developing head, this design can make whole nose catheter from developing head foremost, to suction socket, arrive rear end conduit again, can both develop well in medical image instrument and equipment, be very easy to observation and the operation of clinician, the present invention is at the 5-7 millimeter position of distance developing head foremost, directly by expanding the mode of the flight pitch of bourdon tube, output the suction district that length is 6-12 millimeter, this suction district suction catheter improved in the market is the way by outputing suction socket at little plastic tube, and this suction district can open suction socket in any direction, omnibearing suction can be realized, the situation that the effect lower front end conduit simultaneously also need not worrying negative pressure is crushed, spring pipe shaft between suction district and developing head adopts way thicker gradually, produce a transition diminished gradually, object makes nose catheter more easily enter coronary artery and arteria coronaria blood vessel, more easily arrive the position needing treatment, the way of the polyurethane pipe that medical grade polyurethane material makes is applied mechanically outside bourdon tube, so both can improve the biocompatibility of suction catheter further, avoid occurring the phenomenon such as blood coagulation and haemolysis, the lubricity that suction catheter passes in and out in bloody path can be improved again simultaneously, be convenient to clinical manipulation use, in the way of bourdon tube inner surface coating silicon rubber coating, there is the polysiloxanes of reactive hydroxyl end group, can produce with metal surface and combine, skim is formed securely on bourdon tube surface, greatly can improve the biocompatibility of bourdon tube, the blood compatibility of further raising suction catheter, avoid occurring blood coagulation phenomenon, avoid occurring blocking in pipeline, the rear portion of nose catheter, distance 900-1000 millimeter position foremost, by the mode that the flight pitch of bourdon tube is expanded, be provided with observation area, pass through observation area, clinician can be directly perceived, observe rapidly the situation of blood flow after conduit intravasation, also observe rapidly the situation whether having thrombosis to be drawn out of simultaneously, this uses the material source of novel employing extensive, cost of manufacture is low, cheap, simultaneously, global design compact conformation is reasonable, easy to operate, the excellent developing performance under medical image can be considered, omnibearing suction can be realized at thrombosis position simultaneously, and before and after suction, carry out Real Time Observation to blood flow and to thrombosis and speckle situation of extracting out, add the science of operation, in addition, have employed the process of polyurethane and polysiloxanes, further increase the safety of its biocompatibility and use, therefore, the present invention can effectively remove coronary thrombosis and cracked atheromatous plaque within a short period of time, coronary artery thrombosis load in minimizing PCI art and the far-end microcirculation thromboembolism of secondary, recover coronary flow and Myocardial tissue perfusion, reduce treating myocardial ischemia damage, be conducive to postoperative heart function recovery.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of suction catheter for aspirate thrombi material of the present invention.
Fig. 2 is the partial section of the nose catheter of a kind of suction catheter for aspirate thrombi material of the present invention.
Fig. 3 is the structural representation of the two-port valve of a kind of suction catheter for aspirate thrombi material of the present invention.
Fig. 4 is the structural representation of the connection tube of a kind of suction catheter for aspirate thrombi material of the present invention.
Fig. 5 is the partial enlarged drawing of the nose catheter of a kind of suction catheter for aspirate thrombi material of the present invention.
In figure: 1, nose catheter 2, bourdon tube 3, polyurethane tube 4, coating 5, developing head 6, suction district 7, observation area 8, suction socket 9, tinsel 10, connection tube 11, two-port valve 12, cylindricality valve plug 13, threaded connector 14, rear end conduit 15, screw thread butt joint 16, aspirating syringe.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described further.
Embodiment 1
As Fig. 1, Fig. 2, Fig. 3, shown in Fig. 4 and Fig. 5, a kind of suction catheter for aspirate thrombi material, it comprises nose catheter 1, described nose catheter 1 is by bourdon tube 2 and to be arranged on bourdon tube 2 outer wall and to consist of the polyurethane tube 3 of high frequency heat close adhesion and the coating 4 be arranged on bourdon tube 2 inwall with bourdon tube 2, the caliber of bourdon tube 2 left part is for increase structure gradually, the left end of bourdon tube 2 is provided with developing head 5, the left part of bourdon tube 2 and right part are respectively arranged with suction district 6 and observation area 7, the left part of described polyurethane tube 3 is provided with the suction socket 8 matched with suction district 6, the tinsel 9 run through with nose catheter 1 is provided with in nose catheter 1, the right-hand member of nose catheter 1 is connected with connection tube 10, the right-hand member of described connection tube 10 is connected with two-port valve 11, the top of described two-port valve 11 is provided with cylindricality valve plug 12, the right part of two-port valve 11 is provided with threaded connector 13, described threaded connector 13 has been threaded connection rear end conduit 14, the left part of described rear end conduit 14 and right part are provided with the screw thread butt joint 15 matched with threaded connector 13, the right part of rear end conduit 14 has been threaded connection aspirating syringe 16.
The present invention in use, by femoral artery or radial artery puncturing, nose catheter is inserted tremulous pulse, reach pathological changes (thromboembolism) position of heart, tinsel is extracted out from nose catheter, by pulling aspirating syringe, thrombosis and speckle are extracted out, repetitive operation is until complete suction, the present invention use 304 or the stainless steel silk of 316L as making bourdon tube and material wiry, and adopt polypropylene, polyethylene or makrolon material form two-port valve, polyethylene or makrolon material is adopted to form connection tube, polyether polyurethane material is adopted to form polyurethane tube and rear end conduit, adopt front end with the common medical syringe of spiral interface as aspirating syringe, all general stainless steel silk and common plastics for these materials, low cost of manufacture, low price, common people can be consumed, and global design structure is simple, easy to operate, fast, can effectively remove coronary thrombosis and cracked atheromatous plaque within a short period of time, the main part that the present invention enters the nose catheter of human body is bourdon tube, and bourdon tube adopts the stainless steel metal wire of bifilar parallel connection, and made by Mechanical entanglement, the processing technology of this bourdon tube is simple, can complete in many enterprises, the woven tube of wire that the body avoiding thrombus suction catheter in the market adopts, this conduit makes and is not easy, require high to processing technology, also high to equipment requirements, can only in the production and processing of only a few enterprise, in addition, be not easy to be crushed with bourdon tube, can be provided in the negative pressure of suction and use, also can both ensure that body can not flatten in daily transport and in using, in addition, have employed 304 and 316L stainless steel silk for food and medical industry, ensure that the safety of product, the present invention is at the forefront of nose catheter, the developing head that length is 1-2 millimeter is suppressed with the stainless steel metal wire making bourdon tube is directly bending, the developing head improving current suction catheter adopts in plastic syringe to clog the way of metal segments as developing head, this design can make whole nose catheter from developing head foremost, to suction socket, arrive rear end conduit again, can both develop well in medical image instrument and equipment, be very easy to observation and the operation of clinician, the present invention is at the 5-7 millimeter position of distance developing head foremost, directly by expanding the mode of the flight pitch of bourdon tube, output the suction district that length is 6-12 millimeter, this suction district suction catheter improved in the market is the way by outputing suction socket at little plastic tube, and this suction district can open suction socket in any direction, omnibearing suction can be realized, the situation that the effect lower front end conduit simultaneously also need not worrying negative pressure is crushed, spring pipe shaft between suction district and developing head adopts way thicker gradually, produce a transition diminished gradually, object makes nose catheter more easily enter coronary artery and arteria coronaria blood vessel, more easily arrive the position needing treatment, the way of the polyurethane pipe that medical grade polyurethane material makes is applied mechanically outside bourdon tube, so both can improve the biocompatibility of suction catheter further, avoid occurring the phenomenon such as blood coagulation and haemolysis, the lubricity that suction catheter passes in and out in bloody path can be improved again simultaneously, be convenient to clinical manipulation use, in the way of bourdon tube inner surface coating silicon rubber coating, there is the polysiloxanes of reactive hydroxyl end group, can produce with metal surface and combine, skim is formed securely on bourdon tube surface, greatly can improve the biocompatibility of bourdon tube, the blood compatibility of further raising suction catheter, avoid occurring blood coagulation phenomenon, avoid occurring blocking in pipeline, the rear portion of nose catheter, distance 900-1000 millimeter position foremost, by the mode that the flight pitch of bourdon tube is expanded, be provided with observation area, pass through observation area, clinician can be directly perceived, observe rapidly the situation of blood flow after conduit intravasation, also observe rapidly the situation whether having thrombosis to be drawn out of simultaneously, this uses the material source of novel employing extensive, cost of manufacture is low, cheap, simultaneously, global design compact conformation is reasonable, easy to operate, the excellent developing performance under medical image can be considered, omnibearing suction can be realized at thrombosis position simultaneously, and before and after suction, carry out Real Time Observation to blood flow and to thrombosis and speckle situation of extracting out, add the science of operation, in addition, have employed the process of polyurethane and polysiloxanes, further increase the safety of its biocompatibility and use, therefore, the present invention can effectively remove coronary thrombosis and cracked atheromatous plaque within a short period of time, coronary artery thrombosis load in minimizing PCI art and the far-end microcirculation thromboembolism of secondary, recover coronary flow and Myocardial tissue perfusion, reduce treating myocardial ischemia damage, be conducive to postoperative heart function recovery.
Embodiment 2
As Fig. 1, Fig. 2, Fig. 3, shown in Fig. 4 and Fig. 5, a kind of suction catheter for aspirate thrombi material, it comprises nose catheter 1, described nose catheter 1 is by bourdon tube 2 and to be arranged on bourdon tube 2 outer wall and to consist of the polyurethane tube 3 of high frequency heat close adhesion and the coating 4 be arranged on bourdon tube 2 inwall with bourdon tube 2, the caliber of bourdon tube 2 left part is for increase structure gradually, the left end of bourdon tube 2 is provided with developing head 5, the left part of bourdon tube 2 and right part are respectively arranged with suction district 6 and observation area 7, the left part of described polyurethane tube 3 is provided with the suction socket 8 matched with suction district 6, the tinsel 9 run through with nose catheter 1 is provided with in nose catheter 1, the right-hand member of nose catheter 1 is connected with connection tube 10, the right-hand member of described connection tube 10 is connected with two-port valve 11, the top of described two-port valve 11 is provided with cylindricality valve plug 12, the right part of two-port valve 11 is provided with threaded connector 13, described threaded connector 13 has been threaded connection rear end conduit 14, the left part of described rear end conduit 14 and right part are provided with the screw thread butt joint 15 matched with threaded connector 13, the right part of rear end conduit 14 has been threaded connection aspirating syringe 16, described bourdon tube 2 is the stainless steel silk of 0.15-0.25 millimeter by diameter, and adopt bifilar parallel connection, the rustless steel thread bullet reed pipe made by Mechanical entanglement, described coating 4 is macromolecule silicone rubber coating, and the thickness of coating 4 is 0.03-0.05 millimeter, described developing head 5 suppresses the developing head that length is 1-2 millimeter for stainless steel metal wire bends, described suction district 6 and observation area 7 are all that the flight pitch by expanding bourdon tube obtains, and the flight pitch of suction district 6 is 0.8-2.0 millimeters, length is 6-12 millimeters, the flight pitch of observation area 7 is 1.5-2.0 millimeters, length is 5-6 millimeters, the quantity of described suction socket 8 is two, and two suction socket 8 are for being symmetrical arranged, the length of suction socket 8 is 6-12 millimeters, the middle part of described cylindricality valve plug 12 is provided with central through-hole hole, described tinsel 9 is the stainless steel silk of diameter within the scope of 0.18-0.28 millimeter, described developing head 5 is 5-7 millimeters apart from the spacing of suction district 6, developing head 5 is 900-1000 millimeters apart from the spacing of observation area 7, the internal diameter of described nose catheter 1 is 0.75-0.98 millimeter, external diameter is 1.30-1.60 millimeter, length is 1300-1500 millimeter.
The present invention in use, by femoral artery or radial artery puncturing, nose catheter is inserted tremulous pulse, reach pathological changes (thromboembolism) position of heart, tinsel is extracted out from nose catheter, by pulling aspirating syringe, thrombosis and speckle are extracted out, repetitive operation is until complete suction, the present invention use 304 or the stainless steel silk of 316L as making bourdon tube and material wiry, and adopt polypropylene, polyethylene or makrolon material form two-port valve, polyethylene or makrolon material is adopted to form connection tube, polyether polyurethane material is adopted to form polyurethane tube and rear end conduit, adopt front end with the common medical syringe of spiral interface as aspirating syringe, all general stainless steel silk and common plastics for these materials, low cost of manufacture, low price, common people can be consumed, and global design structure is simple, easy to operate, fast, can effectively remove coronary thrombosis and cracked atheromatous plaque within a short period of time, the main part that the present invention enters the nose catheter of human body is bourdon tube, and bourdon tube adopts the stainless steel metal wire of bifilar parallel connection, and made by Mechanical entanglement, the processing technology of this bourdon tube is simple, can complete in many enterprises, the woven tube of wire that the body avoiding thrombus suction catheter in the market adopts, this conduit makes and is not easy, require high to processing technology, also high to equipment requirements, can only in the production and processing of only a few enterprise, in addition, be not easy to be crushed with bourdon tube, can be provided in the negative pressure of suction and use, also can both ensure that body can not flatten in daily transport and in using, in addition, have employed 304 and 316L stainless steel silk for food and medical industry, ensure that the safety of product, the present invention is at the forefront of nose catheter, the developing head that length is 1-2 millimeter is suppressed with the stainless steel metal wire making bourdon tube is directly bending, the developing head improving current suction catheter adopts in plastic syringe to clog the way of metal segments as developing head, this design can make whole nose catheter from developing head foremost, to suction socket, arrive rear end conduit again, can both develop well in medical image instrument and equipment, be very easy to observation and the operation of clinician, the present invention is at the 5-7 millimeter position of distance developing head foremost, directly by expanding the mode of the flight pitch of bourdon tube, output the suction district that length is 6-12 millimeter, this suction district suction catheter improved in the market is the way by outputing suction socket at little plastic tube, and this suction district can open suction socket in any direction, omnibearing suction can be realized, the situation that the effect lower front end conduit simultaneously also need not worrying negative pressure is crushed, spring pipe shaft between suction district and developing head adopts way thicker gradually, produce a transition diminished gradually, object makes nose catheter more easily enter coronary artery and arteria coronaria blood vessel, more easily arrive the position needing treatment, the way of the polyurethane pipe that medical grade polyurethane material makes is applied mechanically outside bourdon tube, so both can improve the biocompatibility of suction catheter further, avoid occurring the phenomenon such as blood coagulation and haemolysis, the lubricity that suction catheter passes in and out in bloody path can be improved again simultaneously, be convenient to clinical manipulation use, in the way of bourdon tube inner surface coating silicon rubber coating, there is the polysiloxanes of reactive hydroxyl end group, can produce with metal surface and combine, skim is formed securely on bourdon tube surface, greatly can improve the biocompatibility of bourdon tube, the blood compatibility of further raising suction catheter, avoid occurring blood coagulation phenomenon, avoid occurring blocking in pipeline, the rear portion of nose catheter, distance 900-1000 millimeter position foremost, by the mode that the flight pitch of bourdon tube is expanded, be provided with observation area, pass through observation area, clinician can be directly perceived, observe rapidly the situation of blood flow after conduit intravasation, also observe rapidly the situation whether having thrombosis to be drawn out of simultaneously, this uses the material source of novel employing extensive, cost of manufacture is low, cheap, simultaneously, global design compact conformation is reasonable, easy to operate, the excellent developing performance under medical image can be considered, omnibearing suction can be realized at thrombosis position simultaneously, and before and after suction, carry out Real Time Observation to blood flow and to thrombosis and speckle situation of extracting out, add the science of operation, in addition, have employed the process of polyurethane and polysiloxanes, further increase the safety of its biocompatibility and use, therefore, the present invention can effectively remove coronary thrombosis and cracked atheromatous plaque within a short period of time, coronary artery thrombosis load in minimizing PCI art and the far-end microcirculation thromboembolism of secondary, recover coronary flow and Myocardial tissue perfusion, reduce treating myocardial ischemia damage, be conducive to postoperative heart function recovery.
Claims (10)
1. the suction catheter for aspirate thrombi material, it comprises nose catheter, it is characterized in that: described nose catheter is by bourdon tube and to be arranged on bourdon tube outer wall and to consist of the polyurethane tube of high frequency heat close adhesion and the coating be arranged on bourdon tube inwall with bourdon tube, the caliber of bourdon tube left part is for increase structure gradually, the left end of bourdon tube is provided with developing head, the left part of bourdon tube and right part are respectively arranged with suction district and observation area, the left part of described polyurethane tube is provided with the suction socket matched with suction district, the tinsel run through with nose catheter is provided with in nose catheter, the right-hand member of nose catheter is connected with connection tube, the right-hand member of described connection tube is connected with two-port valve, the top of described two-port valve is provided with cylindricality valve plug, the right part of two-port valve is provided with threaded connector, described threaded connector has been threaded connection rear end conduit, the left part of described rear end conduit and right part are provided with the screw thread butt joint matched with threaded connector, the right part of rear end conduit has been threaded connection aspirating syringe.
2. a kind of suction catheter for aspirate thrombi material as claimed in claim 1, it is characterized in that: described bourdon tube is the stainless steel silk of 0.15-0.25 millimeter by diameter, and adopt bifilar parallel connection, the rustless steel thread bullet reed pipe made by Mechanical entanglement.
3. a kind of suction catheter for aspirate thrombi material as claimed in claim 1, it is characterized in that: described coating is macromolecule silicone rubber coating, and the thickness of coating is 0.03-0.05 millimeter.
4. a kind of suction catheter for aspirate thrombi material as claimed in claim 1, is characterized in that: described developing head is that stainless steel metal wire bends and suppresses the developing head that length is 1-2 millimeter.
5. as a kind of suction catheter for aspirate thrombi material according to claim 1 or claim 2, it is characterized in that: described suction district and observation area are all that the flight pitch by expanding bourdon tube obtains, and the flight pitch of suction district is 0.8-2.0 millimeters, length is 6-12 millimeters, the flight pitch of observation area is 1.5-2.0 millimeters, and length is 5-6 millimeters.
6. a kind of suction catheter for aspirate thrombi material as claimed in claim 1, is characterized in that: the quantity of described suction socket is two, and two suction socket are for being symmetrical arranged, and the length of suction socket is 6-12 millimeters.
7. a kind of suction catheter for aspirate thrombi material as claimed in claim 1, is characterized in that: the middle part of described cylindricality valve plug is provided with central through-hole hole.
8. a kind of suction catheter for aspirate thrombi material as claimed in claim 1, is characterized in that: described tinsel is the stainless steel silk of diameter within the scope of 0.18-0.28 millimeter.
9. a kind of suction catheter for aspirate thrombi material as claimed in claim 1, is characterized in that: described developing head is 5-7 millimeters apart from the spacing of suction district, and developing head is 900-1000 millimeters apart from the spacing of observation area.
10. a kind of suction catheter for aspirate thrombi material as claimed in claim 1, is characterized in that: the internal diameter of described nose catheter is 0.75-0.98 millimeter, and external diameter is 1.30-1.60 millimeter, and length is 1300-1500 millimeter.
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| CN201510911635.1A CN105342668A (en) | 2015-12-11 | 2015-12-11 | Suction catheter for sucking thrombotic substances |
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| CN201510911635.1A CN105342668A (en) | 2015-12-11 | 2015-12-11 | Suction catheter for sucking thrombotic substances |
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| CN105920720A (en) * | 2016-06-14 | 2016-09-07 | 河南亚都实业有限公司 | Suction catheter for thrombolysis and suction of thrombotic substance |
| CN109998636A (en) * | 2019-05-19 | 2019-07-12 | 常州市三润医疗器械科技有限公司 | A kind of thrombus removes the thrombus remove device of system |
| CN109998634A (en) * | 2019-05-19 | 2019-07-12 | 常州市三润医疗器械科技有限公司 | Thrombus removes system |
| CN114469339A (en) * | 2021-11-30 | 2022-05-13 | 深圳市中科微光医疗器械技术有限公司 | Laser ablation catheter |
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| CN114469339A (en) * | 2021-11-30 | 2022-05-13 | 深圳市中科微光医疗器械技术有限公司 | Laser ablation catheter |
| CN114469339B (en) * | 2021-11-30 | 2023-08-01 | 深圳市中科融光医疗科技有限公司 | Laser ablation catheter |
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