CN107397575A - sheath for thrombus crushing system - Google Patents
sheath for thrombus crushing system Download PDFInfo
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- CN107397575A CN107397575A CN201710741615.3A CN201710741615A CN107397575A CN 107397575 A CN107397575 A CN 107397575A CN 201710741615 A CN201710741615 A CN 201710741615A CN 107397575 A CN107397575 A CN 107397575A
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- thrombus
- sheath
- sacculus
- core pipe
- outer tube
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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
-
- 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
- A61B2017/22051—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 an inflatable part, e.g. balloon, for positioning, blocking, or immobilisation
- A61B2017/22054—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 an inflatable part, e.g. balloon, for positioning, blocking, or immobilisation with two balloons
-
- 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
- A61B2017/22051—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 an inflatable part, e.g. balloon, for positioning, blocking, or immobilisation
- A61B2017/22065—Functions of balloons
- A61B2017/22067—Blocking; Occlusion
-
- 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
-
- 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
- A61B2017/22082—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 after introduction of a substance
Abstract
The present invention relates to a kind of sheath for thrombus crushing system.A kind of sheath for thrombus crushing system, including being placed into blood vessel and relatively independent preceding sheath, rear sheath, closure sacculus is set with outside the rear end of the preceding sheath and the front end of rear sheath, it is respectively preceding to block sacculus and rear closure sacculus, sacculus is blocked before described and is located at the thrombus both sides in blood vessel respectively with rear closure sacculus and forms crusher chamber therebetween；Sacculus is blocked before described and extrudes or relaxes via external force with rear closure sacculus and expands or shrinks in the blood vessels and will block or open before and after thrombus, the inside of the rear sheath is provided with the core pipe coaxially run through, and the front end of the core pipe is the destroyer for crushing thrombus.Sheath and the structure of two closure sacculus are blocked thrombus both ends before and after the present invention uses, and are then crushed thrombus with destroyer, and the thrombus after crushing is discharged from excretory duct, and structure is novel, except bolt effect is good.
Description
Technical field
The invention belongs to a kind of medicine equipment used in insertion type operation method, is a kind of enter to endovascular deposition
Thing carries out the broken apparatus for extracting and discharging, and is to be related to a kind of sheath for thrombus crushing system specifically.
Background technology
Cerebral artery, the vein of human body often have thrombosis, mainly there is Drug thrombolysis, surgery hand for pathological change of thrombus at present
Art method takes thrombus and mechanically takes the treatment method of bolt.
Thrombolytic drug by intravenous, is directly or indirectly made thrombolysis, so as to dredge what is be blocked by Drug thrombolysis
Blood vessel；Another thrombolysis method is that medicine directly is introduced directly into thrombus position by medicine is dissolved by conduit.It is this
The side effect of bleeding can easily occur for thrombolysis method, particularly cause the patient of internal organ or cerebral hemorrhage danger, should avoid doing thrombolysis
Treatment.
Surgical operation therapy is that a kerf is opened at the position for having thrombus, and from the otch removal of thromboses.But perform the operation from vein
Thrombus difficulty is big, and the caused remaining thrombus chip in surgical procedure can enter lung, and causes pulmonary embolisms.
It is that by Minimally Invasive Surgery bolt apparatus will be taken to introduce vein that mechanical insertion type, which takes bolt method, using radiography and x-ray fluoroscopy,
Pin device will be taken to contact thrombus, and directly thrombus is implemented it is broken remove bolt, or carry out through thrombus taking bolt.With thrombolysis and surgery hand
Art takes bolt to compare, and this method wound face is small, the vein of thrombus deposition site is influenceed smaller.
It is relevant with this technology（Mechanical crush removes bolt）Patent mainly has：Thrombus breaking and thrombus taking device
（ZL201110098919.5）Human vas can be entered by disclosing one kind, and thrombus is crushed and that effectively takes out takes bolt apparatus.
The patent is solved because trickle seal wire is easily bent when through thrombus, it is difficult to which the center for being directed at thrombus passes through, easily to blood
Pipe causes the problem of damage, improves the security for taking bolt.But seal wire is broken through thrombus, and wire netting to thrombus
In broken process, thrombus fragment is difficult to all be captured and excreted.
Thrombus Crusher（ZL 200420049312.3）Disclose and a kind of belong to the changing acoustic energy of Medical Devices scope
Into mechanical energy, thrombus is crushed with vibration mode, reaches the purpose for helping thrombus to remove.But the patent is carried during except bolt
The outer auxiliary treatment of donor.Because in bolt or shattering process is taken, easily making thrombus fine debris occur and being difficult to be captured, and remain in
Inside venous blood, and enter disk road it is quiet/artery and internal organs, cause other veins, internal organs that embolism or MSOF occurs.
Thrombectomby and preparation method thereof, application method（201010262495.7）A kind of thrombectomy device is disclosed, it
It is made up of delivery conduit, conducting wire pole, conductive filament head, distal end/near-end basket etc..Resectoscope, basket are put by X ray during use
Enter blood vessel, opening through discharging basket after thrombus, thrombus is removed its loosening, is collected with basket is poured by blood flow.Yin Qie
Except device and basket will cause thrombus to rupture when through thrombus, thrombus fragment will flow through the rear end of basket intravasation, easily make
Into the secondary embolism of blood vessel distal end；In addition, basket is when collecting thrombus, the inner membrance of easy injured blood vessel.
Partial sealing formula thrombus scaler（201010238525.0）Disclose and a kind of implement closure, broken and scrape to thrombus
De- device.When except bolt, two closure sacculus are through opening after thrombus, and the thrombus between sacculus is through scraping the rotation of bolt pompon
Turn, it is broken scrape it is de- after, from intravascular discharge.Because sacculus need to be when through thrombus, will also produce may cause blood vessel distal end secondary
The thrombus fragment of embolism；In addition, coup injury will be produced to endangium by scraping bolt pompon.
A kind of thrombectomby system（201510108393.2）Disclose it is a kind of by thrombectomy device, balloon guide catheter and
The machinery conveyed as conduit composition takes pin device.When except bolt, first spreading sacculus implements near-end protection, then will be in contraction state
Resectoscope pass through thrombus after spreading；By pulling excision thrombus is separated from blood vessel, and collect and excrete.Because resectoscope needs
When through thrombus, will also the thrombus fragment that may cause the secondary embolism in blood vessel distal end be produced；In addition, the movement of resectoscope also can
Coup injury is produced to endangium.
The content of the invention
The invention reside in overcome the deficiencies in the prior art, real needs are adapted to, design is a kind of to be used for thrombus crushing system
Sheath, thrombus is carried out it is effectively broken, and can be complete not outside isostere by thrombus fragment, realize high efficiency and security except bolt.
In order to realize the purpose of the present invention, adopt the following technical scheme that：
A kind of sheath for thrombus crushing system, including be placed into blood vessel and relatively independent preceding sheath, rear sheath, it is described
Closure sacculus is set with outside the rear end of preceding sheath and the front end of rear sheath, closure sacculus and rear closure sacculus before being respectively,
Closure sacculus is located at the thrombus both sides in blood vessel with rear closure sacculus and forms crusher chamber therebetween respectively before described；Before described
Block sacculus and closure sacculus be via external force extruding or relaxation expansion in the blood vessels afterwards or contraction will be blocked before and after thrombus or opening,
The inside of sheath is provided with the core pipe coaxially run through after described, and the front end of the core pipe is the destroyer for crushing thrombus.
The destroyer is the jet orifice being distributed on the wall of core pipe front end, the end of the core pipe and crushing medium it is defeated
Pipeline communication is sent, crushing medium sprays through destroyer smashes thrombus.
The jet orifice is layered interval cloth successively with each circumference on core pipe wall according to the arrangement regulation of straight hole and inclined hole
Put, the axis of the straight hole is vertical with core pipe wall, and the axis of the inclined hole is 0 ~ 90 ° with the angle a of core pipe axis direction, institute
State jet orifice to be distributed on the wall away from 1 ~ 20mm of core pipe front end, and be provided with 8 altogether --- 20 layers.
The preceding sheath, rear sheath include inner tube closed at both ends and hollow, preceding closure sacculus and rear closure sacculus point
Be not sleeved on the outside of respective inner tube, the outer tube is divided into thrombus distal end outer tube, thrombus near-end outer tube, it is described before closure sacculus with
Closure sacculus is set in outside the inner tube between two sections of outer tubes afterwards；A sacculus breathing spiral shell is set with the outer tube of the thrombus distal end
Mother, the sacculus breathing nut outer end and inner tube static connection, the inner match suit with thrombus distal end outer tube by screw thread；Before described
Closure sacculus, which is compressed axially or discharged to it by thrombus distal end outer tube, realizes breathing.
The lower end of the inner tube of sheath is provided with the connector being connected with excretory duct after described.
The thrombus distal end outer tube with preceding sheath, thrombus near-end outer tube are fixedly connected respectively at the both ends of preceding closure sacculus, rear envelope
The thrombus distal end outer tube with rear sheath, thrombus near-end outer tube are fixedly connected respectively at the both ends of stifled sacculus.
The preceding closure sacculus and the grid-like framework that the rear framework for blocking sacculus is that elastic metallic yarn weaves, the frame
The outside of frame is coated with closed elastic film.
Radial clearance is provided between the inner tubal wall of the core pipe and rear sheath, distribution is some in the inner tube of described rear sheath
Group convex tendon, each group of convex tendon should have more than three, be uniformly distributed in inner tube inner periphery and with the diameter parallel of inner tube；It is convex
The area of passage that muscle and the external cylindrical surface of core pipe, the inner cylinder face of inner tube are formed is not less than the area of passage of core pipe.
Beneficial effects of the present invention：
1. sheath and the structures of two closure sacculus are blocked thrombus both ends before and after using, then with destroyer by thrombus
Broken, the thrombus after crushing is discharged from excretory duct, and structure is novel, except bolt effect is good；
2. having multi-layer nested structure by the rear sheath of design, the sheath is conveyed for existing high-voltage pulse liquid medium
To the passage of fracture area, it may have the passage that Biochemical analyzer excretes after will be broken；
3. woven wire and elastic film are carried out it is effectively compound, be then designed to can with the spheroid shape structural balloon of breathing, and
Make sacculus with respectively at the affixed of forward and backward sheath, being mainly used in building the closed disintegrating area of broken bolt, realizing near, distal embolic protection；
4. the sheath of this case, it can flexibly be combined with existing thrombus crushing system, substitute original structure, realize that thrombus is broken
It is broken.
Brief description of the drawings
Fig. 1 is to use structural representation applied in one of which thrombus Crusher；
Fig. 2 is the mplifying structure schematic diagram of preceding sheath；
Fig. 3 is the mplifying structure schematic diagram of rear sheath；
Fig. 4 is the partial enlargement structural representation of destroyer；
Fig. 5 is the radial position broken section amplification assumption diagram of the core pipe and inner tube in preceding sheath.
The implication of each reference in figure：
1 is preceding sheath, and 101 be the inner tube of preceding sheath, and 102 be ring, and 103 be sacculus breathing nut, and 104 be the thrombus of preceding sheath 1
Distal end outer tube, 105 be preceding closure sacculus, and 106 be the thrombus near-end outer tube of preceding sheath 1, and 2 be blood vessel, and 3 be thrombus, and 4 be broken
Chamber, 5 be rear sheath, and 501 be destroyer, and 502 be core pipe, and 503 be the thrombus distal end outer tube of rear sheath, 504 be after block sacculus,
505 be the thrombus near-end outer tube of rear sheath, and 506 be sacculus breathing nut, and 507 be ring, and 508 be the inner tube of rear sheath, and 509 be small
Nut, 510 be ring, and 511 be porus excretorius, and 512 be jet orifice, and 513 be convex tendon, and 6 be pulsating water supply pipe, and 7 be liquid-supplying system,
701 be solution feed pump, 702 be pressure flow controller, 8 be ultrasonic excitation system, and 801 be ultrasonic generator, and 802 be ultrasonic wave
Transducer, 803 be ultrasonic transformer, and 804 be vibration chamber, and 9 be except bolt controls CPU, and 10 be suction system, and 1001 be suction pump, 1002
It is communicating pipe for broken bolt suction control device, 1003,11 be broken bolt monitor controller, and 12 be fracture area pressure monitoring device,
13 be that X-ray is popped one's head in, and 14 be grid-like framework, and 15 be elastic film.
Embodiment
Embodiment：Referring to Fig. 1-5.
The invention discloses a kind of sheath for thrombus crushing system, including it is placed into blood vessel 2 and relatively independent
Closure sacculus is set with outside preceding sheath 1, rear sheath 5, the rear end of the preceding sheath 1 and the front end of rear sheath 5, before being respectively
Block sacculus 105 and block sacculus 504, the preceding closure sacculus 105 and the rear blood for blocking sacculus 504 respectively in blood vessel with rear
The both sides of bolt 3 and therebetween formation crusher chamber 4；The preceding closure sacculus 105 is with rear closure sacculus 504 via external force extruding or pine
Relax in the intramedullary expansion of blood vessel 2 or block or open before and after shrinking thrombus, the inside of the rear sheath 5 is provided with what is coaxially run through
Core pipe 502, the front end of the core pipe 502 are the destroyer 501 for crushing thrombus.
The invention belongs to a kind of medicine equipment used in insertion type operation method, is a kind of enter to endovascular deposition
Thing carries out the broken apparatus for extracting and discharging.
The position of thrombus is being found, preceding sheath 1 is first being inserted to the front end of thrombus in blood vessel, preceding closure sacculus 105 expansion will
Blood vessel front end blocks, until being bonded with the inwall of blood vessel 2, then rear sheath 5 is inserted to the rear end of thrombus 3, sacculus is blocked after making
504 expansions, until being bonded with the inwall of blood vessel 2；Thrombus 3 is just blocked between two sacculus, and the closed area is broken
Chamber 4.Blood vessel is placed in preceding sheath 1, rear sheath 5, and is completed after being blocked to thrombus, destroyer 501 crushes thrombus, through broken
Thrombus fragment after broken is discharged via excretory duct 511.
The destroyer 501 is to be distributed in jet orifice 512 on the front end wall of core pipe 502, the end of the core pipe 502 with
The conveyance conduit connection of crushing medium, crushing medium sprays through destroyer 501 smashes thrombus.
For example, it is thrombus crushing medium that water, which can be selected, in this case, it is contemplated that can be done using other media to substitute water
Crushing medium, such as air-flow.The pulsating water supply pipe 6 is connected with core pipe 502, and the front end of the core pipe 502, which is provided with, to be distributed in
Jet orifice 512 on the front end wall of core pipe 502, each jet orifice 512 form destroyer 501, and pulsating water sprays through destroyer 501
Go out and smash thrombus.
The jet orifice 512 is layered successively on core pipe wall 502 with each circumference according to the arrangement regulation of straight hole and inclined hole
Arranged for interval, the axis of the straight hole is vertical with core pipe wall, and the axis of the inclined hole and the angle a of core pipe axis direction be 0 ~
90 °, the jet orifice 512 is distributed on the wall away from the 1 ~ 20mm of front end of core pipe 502, and is provided with 8 altogether --- and 20 layers.
Spaced apart structure is layered using straight hole and inclined hole, thrombus can be impacted from different perspectives, and different directions
The water column of ejection forms flow-disturbing, thrombus uniformly more can be broken for into less particle, avoid unidirectional water column
Caused by thrombus crush not of uniform size, some slightly larger particles are neither easy to crush again, are not easy to discharge from excretory duct 511 again.
As a preferred embodiment, the preceding sheath 1, rear sheath 5 include inner tube closed at both ends and hollow,
Preceding closure sacculus 105 is set in the outside of respective inner tube with rear closure sacculus 504, the preceding sheath 1 of this case, rear sheath 5
Outer tube is set with outside inner tube, 101 be the inner tube of preceding sheath, and 508 be the inner tube of rear sheath, and it is outer that the outer tube is divided into thrombus distal end
Manage, thrombus near-end outer tube, in figure, the thrombus distal end outer tube and thrombus near-end outer tube of 104,106 respectively preceding sheaths 1,503,505
The thrombus distal end outer tube and thrombus near-end outer tube of sheath after respectively.Closure sacculus 105 covers with rear closure sacculus 504 before described
Outside the inner tube between two sections of outer tubes；Be set with a sacculus breathing nut at the outer tube of the thrombus distal end, in figure mark for
103rd, 506, the sacculus breathing nut outer end and inner tube static connection, the inner match suit with thrombus distal end outer tube by screw thread；
Closure sacculus 105, which is compressed axially or discharged to it by thrombus distal end outer tube, before described realizes breathing.
The position of thrombus is being found, preceding sheath 1 is first inserted to the front end of thrombus in blood vessel, the sacculus before rotation in 1 sheath
Breathing nut 103, the thrombus distal end outer tube 104 of sheath 1 moves along inner tube 101 to thrombus near-end before enabling, so that preceding envelope
Stifled sacculus 105 expands, until blood vessel 2 is propped up and is bonded with its inwall by preceding closure sacculus 105, realizes that near-end is protected；By rear sheath
Pipe 5 inserts the right-hand member of thrombus 3, the sacculus breathing nut 506 after rotation in sheath, enables the thrombus near-end outer tube 505 of rear sheath
It is enough to be moved along the inner tube 508 of rear sheath to thrombus end, so that closure sacculus 504 expands afterwards, until being pasted with the inwall of blood vessel 2
Close, prevent tiny thrombus fragment from flowing to distal end；Thrombus is just blocked between two sacculus.It is equal in preceding sheath 1, rear sheath 5
Blood vessel is placed to, and is completed after being blocked to thrombus, opens water system, pulsating water flows through destroyer via pulsating water supply pipe 6
Sprayed after 501 through jet orifice 512 and smash thrombus 3, the thrombus fragment after smashing is aspirated from excretory duct 511 via suction system 10
All discharges.
The lower end of the inner tube 508 of sheath is provided with the connector being connected with excretory duct 511 after described.Excretory duct 511 refers to
The connected mode of the present embodiment, it can be also connected using other modes with the inner tube of rear sheath, as long as being connected with crusher chamber to arrange
Go out thrombus chip.
The thrombus distal end outer tube 104 with preceding sheath 1, thrombus near-end outer tube 106 are fixed respectively at the both ends of preceding closure sacculus 105
Connection, the thrombus distal end outer tube 503 with rear sheath 5, thrombus near-end outer tube 505 fix company respectively at the rear both ends for blocking sacculus 504
Connect.
The framework of closure sacculus 105 and rear closure sacculus 504 is the grid-like framework of elastic metallic yarn braiding before described
14, the outside of the framework is coated with closed elastic film 15.
The latticed forward and backward closure sacculus of elastic metallic yarn braiding, and coated by elastic film so that sacculus harmomegathus spiral shell
When mother unclamps, elastic film is relaxation state, but still has a spherical frame structure, it is necessary to will be sealed before and after thrombus
When stifled, as long as sacculus harmomegathus nut, extruding sacculus somewhat are brought it about into deformation.Certainly, forward and backward closure sacculus
Structure is also not limited to this, can use simple inflatable structure, and front and rear closure sacculus is connected with inflatable structure.
Radial clearance is provided between the inner tubal wall of the core pipe 502 and rear sheath 5, in the inner tube 508 of described rear sheath
Be distributed some groups of convex tendons 513, each group of convex tendon should have more than three, be uniformly distributed in inner tube 508 inner periphery and with it is interior
The diameter parallel of pipe；The area of passage that convex tendon is formed with the external cylindrical surface of core pipe 502, the inner cylinder face of inner tube 508 is not less than core
The area of passage of pipe 502.
An annular groove is all provided with the outer end of the sacculus breathing nut 103,506, sacculus breathing nut is by being arranged at ring
Ring 102,510 in shape groove is fixedly connected with respective inner tube；Primary nut 509, the small spiral shell are set with outside the right-hand member of core pipe 502
The outer end of mother 509 also sets an annular groove, is fixedly connected by the ring 510 being arranged in annular groove with core pipe 502, the other end passes through
Screw thread and the inner tube 508 of rear sheath coordinate；The sacculus breathing nut 103,506, primary nut 509 are the hollow circuit cylinder bottom of with
Shape structure, annular groove is provided with columned bottom, respective ring is embedded in annular groove, is existed between ring and annular groove certain
Gap.
The brief description present invention is used for the sheath of thrombus crushing system, the ultrasonic thrombus crushing system applied to the present embodiment
Practical principle：
Each several part is entitled in figure, liquid-supplying system 7, except bolt controls CPU9, suction system 10, broken bolt monitor controller 11, breaks
Broken area's pressure monitoring device 12 and the visual probe 13 positioned at the outside of crusher chamber 3；Liquid-supplying system 7 is by solution feed pump 701 and pressure
Power/flow controller 702 forms；Solution feed pump 701 is connected with the input of pressure/flow controller 702；The suction system bag
Suction pump 1001, broken bolt suction control device 1002 are included, the broken bolt suction control device 1002 passes through communicating pipe 1003 and row
Pipe 511 is let out to connect；It is described except bolt control CPU9 respectively with ultrasonic generator 801, broken bolt suction control device 1002, pressure/stream
Amount controller 702, broken bolt monitor controller 11, fracture area pressure monitoring device 12 connect；The broken bolt monitor controller
11 are connected with the X-ray probe 13 outside crusher chamber, and the fracture area pressure monitoring device 12 is micropressure sensor, described
Fracture area pressure monitoring device 12 be connected to pressure flow controller 702 and vibrate chamber 804 valve body 8407 between.
Blood vessel is placed in preceding sheath 1, rear sheath 5, and is completed after being blocked to thrombus, by controlling CPU9 except bolt, point
Kai Qi not ultrasonic excitation system 8, liquid-supplying system 7, suction system 10 and broken bolt monitor controller 11.
By the primary nut 509 of sheath after rotation 5, core pipe 502 is set to be moved in inner tube 508 to thrombus near-end, from
And moved to the position of thrombus 3；When destroyer 501 is close to thrombus 3, liquid-supplying system 7 is coordinated through removing bolt control CPU, according to
The liquid supply pressure and flow of setting are to the feed flow of destroyer 501；Meanwhile ultrasonic generator 801 will produce 15-20KHz high-frequency electrical
Pulse, ultrasonic transformer 803 is set to obtain high frequency, a little mechanical oscillation by ultrasonic transducer 802, this mechanical oscillation, which will excite, shakes
The high-pressure liquid medium swung in chamber 804 produces resonance, and is transformed into 15-20KHz pulsing jet from the floss hole warp of vibration chamber
Enter the core pipe end of rear sheath 5 after secondary acceleration at a high speed, and sprayed from the jet orifice 512 of destroyer 501, to being deposited on blood
Thrombus in pipe is impacted, is cut, crushed and separated, and thrombus is turned into fine debris, and the liquid being suspended in crusher chamber 4 is situated between
In matter.
Flowed out in high-speed pulse jet from destroyer 501, while implementing broken to thrombus 3, through coordinating except bolt control CPU
The broken bolt suction control device 1002 of suction system 10, for working flow of the flow quantity as suction pump 1001, you can ensure
Thrombus crush required feed flow requirement, can will be broken after thrombus fragment discharge blood vessel outside, and can ensure remove bolt process medium vessels
Inside occur without region of no pressure.
The reality of thrombus fracture area liquid medium is obtained by the micropressure sensor of fracture area pressure monitoring device 12 in real time
Border pressure signal, it is transferred to except bolt controls CPU by micropressure sensor, after being compared with predetermined pressure parameter, is fed back to
Ya Li flow controllers 702 in liquid-supplying system 7, set up to liquid-supplying system output pressure, both can guarantee that broken thrombus
The pressure requirements of pulsing jet, it also can guarantee that the pressure security of fracture area.
By X-ray probe 13, by contrast agent, the images such as position, size and blocking of thrombus 3 are obtained before thrombus is broken
Information；During ultrasonication, broken rear thrombus particle size, and the image of thrombus cleaning, above-mentioned image information warp are obtained
Shown after being handled except bolt control CPU.Using above-mentioned image information as foundation, until removing endovascular all thrombus or patch, make
Untill vascular patency.
The present invention takes plugging type to remove bolt, can will it is broken after thrombus fragment flow to distal vessels, avoid causing secondary
Embolism；Therefore, sheath of the invention can apply to the most of except tying in system of prior art, by itself and corresponding structure reality
Row is simple to be replaced.
Embodiments of the invention are the foregoing is only, are not intended to limit the scope of the invention, it is every to utilize this hair
The equivalents or be directly or indirectly used in related technical field that bright specification and accompanying drawing content are made, are similarly included in
In the scope of patent protection of the present invention.
Claims (8)
1. a kind of sheath for thrombus crushing system, including it is placed into blood vessel（2）In and relatively independent preceding sheath（1）, after
Sheath（5）, the preceding sheath（1）Rear end and rear sheath（5）Front end outside be set with closure sacculus, be respectively before block
Sacculus（105）With rear closure sacculus（504）, sacculus is blocked before described（105）With rear closure sacculus（504）It is located at respectively in blood vessel
Thrombus（3）Both sides and crusher chamber is formed therebetween（4）；Closure sacculus before described（105）With rear closure sacculus（504）Via
External force extrudes or relaxation is in blood vessel（2）Intramedullary expansion shrinks and will block or open before and after thrombus, the rear sheath（5）Inside set
There is the core pipe coaxially run through（502）, the core pipe（502）Front end be destroyer for crushing thrombus（501）.
2. the sheath according to claim 1 for thrombus crushing system, it is characterised in that：The destroyer（501）For
It is distributed in core pipe（502）Jet orifice on the wall of front end（512）, the core pipe（502）End and crushing medium delivery pipe
Road connects, and crushing medium is through destroyer（501）Ejection smashes thrombus.
3. the sheath according to claim 2 for thrombus crushing system, it is characterised in that：The jet orifice（512）
Core pipe wall（502）On arranged for interval successively, the axle of the straight hole be layered according to the arrangement regulation of straight hole and inclined hole with each circumference
Line is vertical with core pipe wall, and the axis of the inclined hole is 0 ~ 90 ° with the angle a of core pipe axis direction, the jet orifice（512）
Away from core pipe（502）It is distributed on 1 ~ 20mm of front end wall, and is provided with 8 altogether --- 20 layers.
4. the sheath according to claim 1 for thrombus crushing system, it is characterised in that：The preceding sheath（1）, rear sheath
Pipe（5）Include inner tube closed at both ends and hollow, preceding closure sacculus（105）With rear closure sacculus（504）It is set in each
From the outside of inner tube, the outer tube is divided into thrombus distal end outer tube, thrombus near-end outer tube, and sacculus is blocked before described（105）With rear envelope
Stifled sacculus（504）It is set in outside the inner tube between two sections of outer tubes；A sacculus breathing is set with the outer tube of the thrombus distal end
Nut, the sacculus breathing nut outer end and inner tube static connection, the inner match suit with thrombus distal end outer tube by screw thread；It is described
Preceding closure sacculus（105）It is compressed axially or discharged by thrombus distal end outer tube and realizes breathing.
5. the sheath according to claim 4 for thrombus crushing system, it is characterised in that：The inner tube of sheath after described
（508）Lower end be provided with and excretory duct（511）The connector of connection.
6. the sheath according to claim 4 for thrombus crushing system, it is characterised in that：Preceding closure sacculus（105）'s
Both ends respectively with preceding sheath（1）Thrombus distal end outer tube（104）, thrombus near-end outer tube（106）It is fixedly connected, blocks sacculus afterwards
（504）Both ends respectively with rear sheath（5）Thrombus distal end outer tube（503）, thrombus near-end outer tube（505）It is fixedly connected.
7. the sheath according to claim 5 for thrombus crushing system, it is characterised in that：Closure sacculus before described
（105）With rear closure sacculus（504）Framework be elastic metallic yarn braiding grid-like framework（14）, the outside of the framework
It is coated with closed elastic film（15）.
8. ultrasound according to claim 1, which is removed, ties system, it is characterised in that：The core pipe（502）With rear sheath（5）It is interior
Radial clearance, the inner tube of described rear sheath are provided between tube wall（508）Some groups of convex tendons of interior distribution（513）, each group of convex tendon
There should be more than three, be uniformly distributed in inner tube（508）Inner periphery and with the diameter parallel of inner tube；Convex tendon and core pipe
（502）External cylindrical surface, inner tube（508）Inner cylinder face formed area of passage be not less than core pipe（502）Area of passage.
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| CN201710741615.3A CN107397575B (en) | 2017-08-25 | 2017-08-25 | Sheath tube for thrombus disruption system |
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