CN109998635A - Unidirectional thrombus remove device - Google Patents
Unidirectional thrombus remove device Download PDFInfo
- Publication number
- CN109998635A CN109998635A CN201910416027.1A CN201910416027A CN109998635A CN 109998635 A CN109998635 A CN 109998635A CN 201910416027 A CN201910416027 A CN 201910416027A CN 109998635 A CN109998635 A CN 109998635A
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- Prior art keywords
- sacculus
- thrombus
- conduit
- catheter
- unidirectional
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- 208000007536 Thrombosis Diseases 0.000 title claims abstract description 146
- 210000004204 blood vessel Anatomy 0.000 claims abstract description 54
- 238000013151 thrombectomy Methods 0.000 claims abstract description 49
- 239000012634 fragment Substances 0.000 claims abstract description 25
- 239000010902 straw Substances 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims abstract description 13
- 210000004369 blood Anatomy 0.000 claims abstract description 10
- 239000008280 blood Substances 0.000 claims abstract description 10
- 239000007788 liquid Substances 0.000 claims description 23
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- 229910001000 nickel titanium Inorganic materials 0.000 claims description 6
- 239000012530 fluid Substances 0.000 claims description 5
- HLXZNVUGXRDIFK-UHFFFAOYSA-N nickel titanium Chemical compound [Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni] HLXZNVUGXRDIFK-UHFFFAOYSA-N 0.000 claims description 5
- 230000033001 locomotion Effects 0.000 claims description 4
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- 229910045601 alloy Inorganic materials 0.000 claims description 3
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- 206010020718 hyperplasia Diseases 0.000 abstract description 5
- 210000003038 endothelium Anatomy 0.000 abstract description 4
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Classifications
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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
- A61B17/22031—Gripping instruments, e.g. forceps, for removing or smashing calculi
- A61B17/22032—Gripping instruments, e.g. forceps, for removing or smashing calculi having inflatable gripping elements
-
- 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
- A61B17/221—Gripping devices in the form of loops or baskets for gripping calculi or similar types of obstructions
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/36—Image-producing devices or illumination devices not otherwise provided for
- A61B90/361—Image-producing devices, e.g. surgical cameras
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/36—Image-producing devices or illumination devices not otherwise provided for
- A61B90/37—Surgical systems with images on a monitor during operation
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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
- A61B17/22031—Gripping instruments, e.g. forceps, for removing or smashing calculi
- A61B2017/22034—Gripping instruments, e.g. forceps, for removing or smashing calculi for gripping the obstruction or the tissue part from inside
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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
- A61B17/22031—Gripping instruments, e.g. forceps, for removing or smashing calculi
- A61B2017/22035—Gripping instruments, e.g. forceps, for removing or smashing calculi for retrieving or repositioning foreign objects
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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
- 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
- A61B2017/22047—Means for immobilising the guide wire in the patient
- A61B2017/22048—Balloons
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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
- 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
- A61B2017/22079—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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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/36—Image-producing devices or illumination devices not otherwise provided for
- A61B90/37—Surgical systems with images on a monitor during operation
- A61B2090/376—Surgical systems with images on a monitor during operation using X-rays, e.g. fluoroscopy
Abstract
The present invention relates to a kind of unidirectional thrombus remove devices, belong to medical instruments field, suitable for removing the foreign matters such as Intravascular Thrombus, thrombus fragment, blood clotting, blood lipid patch, atherosclerotic material, it is also applied for removing the vascular thrombosis and cause blood vessel endothelium hyperplasia that the intravascular stent inner surface being placed in human vas is formed.Including puncturing head, seal wire, conduit, preceding sacculus, preceding sacculus catheter, front support set, collect basket, thrombectomy device, rear sacculus, rear sacculus catheter, rear support set, casing and negative pressure straw；Casing is sleeved on outside conduit, and before preceding sacculus is mounted in sacculus mounting groove, preceding sacculus catheter is connected with preceding sacculus, is provided with thrombectomy device on the conduit at preceding sacculus mounting groove rear portion；Collection basket is installed in thrombectomy device rear duct；Sacculus mounting groove after being provided on collecting basket rear duct, rear sacculus are mounted in rear sacculus mounting groove；It is provided on rear support set in conduit and negative pressure straw is installed.
Description
Technical field
The present invention relates to a kind of unidirectional thrombus remove devices, belong to medical instruments field, are suitable for removing intravascular
The foreign matters such as thrombus, thrombus fragment, blood clotting, blood lipid patch, atherosclerotic material are also applied for removing and are placed on human body blood
The vascular thrombosis and cause blood vessel endothelium hyperplasia that intravascular stent inner surface in pipe is formed.
Background technique
Thrombus is that blood flow on the surface of cardiovascular system blood vessel inner face exfoliation or mend is formed by fritter.Variable
Fluid dependent form in, thrombus is by insoluble fibrin, the blood platelet of deposition, the leucocyte of accumulation and the red blood cell group fallen into
At thrombosis is by one group of h and E factor interaction, interactional multifactor change procedure.It is clinical common
Thrombosis patients, most important feature have a Familial Occurrence, repeated relapsing, symptom severity, thrombosis position abnormality, with
And disease time rejuvenation, suspecting that artery or venous thronbosis or thromboembolism need objective basis angiography is diagnosis
Reference standard, but the ultrasound detection operated by consummate skill, can also check superficial vein and heart.By intravascular generation
Thrombus take out, make the revascularization of occlusion, be the key that restore thrombus blocking blood vessel, and international blood vessel research at present is new
Field.But the thrombus remover of current stage is there are many shortcomings, for example, existing thrombus removes equipment, into
When promoting circulation of blood bolt is removed, the up to residual of 30%-50% can be generated, existing equipment when conduit enters clot, it is countless
Fragment can stay in blood vessel, reduce blood flowing speed, cause tissue necrosis.
The reception device of mesh basket structure, benefit are arranged by the blood flow distal end at thrombectomby position for thrombectomy device at present
Excision is wound to thrombus with excision spring, is finally recycled in mesh basket structure, endovascular blood flow is kept during this
It may pass through mesh basket structure to be able to continue to flow, but spring device for excising is when cutting off thrombus, it is unavoidable to generate one
A little minimum thrombus fragments pass through mesh basket reception device in company with blood together and enter intravascular, pass through long time integration possibility
More thrombus can be generated again, done harm to huamn body.
Endovascular stent is located in a kind of metallicity eyelid retractor in human vas, has and struts narrow blood vessel, protects
The unobstructed effect of regional flow is demonstrate,proved, endovascular stent technology has been widely applied clinically (such as coronary stent, neck
Arterial bracket, arteria iliacofemoralis bracket, inferior caval vein bracket, vena hepatica bracket, iliac vein bracket etc.).Due to endovascular stent table
Face is rough, thrombus easy to form and causes blood vessel endothelium hyperplasia and restenosis occurs.Under normal conditions again to endovascular stent
Narrow processing is thrombolysis or treated using balloon expandable, due to balloon expandable can only play local squeezing action and not
Thrombus and the tissue of hyperplasia can be removed, therefore how undesirable effect is, it is difficult to remove.
Summary of the invention
The purpose of the present invention is providing a kind of unidirectional thrombus remove device in view of the above shortcomings, pass through unidirectional thrombus
Remove device thoroughly removes the thrombus foreign matter in blood vessel, restores unobstructed blood vessel, thoroughly solve because thrombus because complication.
It is broken that unidirectional thrombus remove device is used to solve and remove in clinic Intravascular Thrombus, thrombus in blood vessel whether great or small
The foreign matters such as piece, blood clotting, blood lipid patch, atherosclerotic material are also applied for removing the blood vessel being placed in human vas
The vascular thrombosis and cause blood vessel endothelium hyperplasia that stent inner surface is formed.Unidirectional thrombus remove device removes Intravascular Thrombus etc.
Foreign matter saves placement bracket, and excessive placement bracket can cause blood vessel to burst, and without taking medicine for a long time.
Unidirectional thrombus remove device adopts the following technical solutions to achieve:
Unidirectional thrombus remove device include puncturing head, seal wire, conduit, preceding sacculus, preceding sacculus catheter, front support set, collect basket,
Thrombectomy device, rear sacculus, rear sacculus catheter, rear support set, casing, negative pressure straw.
Casing is sleeved on outside conduit, sacculus mounting groove before conduit front is provided with, sacculus installation before preceding sacculus is mounted on
In slot, preceding sacculus catheter is connected with preceding sacculus, is provided with front support set in conduit, is used to support positioning conduit, preceding sacculus, preceding
Sacculus catheter.Thrombectomy device is provided on the conduit at preceding sacculus mounting groove rear portion.
Collection basket is installed in thrombectomy device rear duct, for collecting the thrombus fragment and foreign matter removed.
Sacculus mounting groove after being provided on collecting basket rear duct, rear sacculus are mounted in rear sacculus mounting groove, rear ball
Capsule catheter is connected with rear sacculus, is provided with rear support set in conduit, is used to support sacculus, rear foley's tube after conduit positioning.
Conduit be provided with rear support set on negative pressure straw is installed, for negative-pressure ward thrombectomy device remove thrombus fragment and
Foreign matter, will remove thrombus fragment and foreign matter negative-pressure ward excretes.
The seal wire sequentially passes through conduit, rear support set, front support set, and seal wire front end is mounted with puncturing head, institute
The puncturing head stated is coniform puncturing head, and front end has small round corner.Puncturing head may be provided with the cutting edge with arc, convenient for rotation
Turn to cut through thrombus lump, and blood vessel will not be punctured.
The thrombectomy device is provided with branches and leaves shape cut-off blade, and branches and leaves shape cut-off blade is distributed across front and back conduit
On excircle, cut-off blade shape is leaf shape, strip, triangle, rectangular, oval；When conduit travels forward, guide sleeve to
Slide cut-off blade after certain distance afterwards and flick and form certain angle with conduit, the size of angle by conduit forward slip distance
Determine, the material of blade uses Nitinol, alloy, nylon, PTFE(Teflon elastoplastic silk) etc. any materials be made.When
When cut-off blade is axially rotated along wire catheter, thrombus, patch, atherosclerotic material on cut-off blade cutting vessel inner wall.
The collection basket is made of Nitinol metal mesh shaped braided fabric.
The seal wire front end is equipped with pre-positioning block, and rear support set rear portion seal wire is also equipped with post-positioning block.The conduit
Front end setting is conical, and is provided with seal wire through-hole.
Seal wire, catheter, optical fiber, image pickup signal transmission line etc. are installed in the conduit.
The conduit is inserted into vascular thrombosis position, and seal wire moves forward, and the post-positioning block on seal wire fits through conduit
Middle rear support set for pushing conduit forward slip, release from casing, and then collects before opening by collection basket, thrombectomy device
Basket, thrombectomy device after positioning, open forward and backward drain switch, to give forward and backward sacculus filling liquid, and position forward and backward sacculus, can
To carry out the foreign matters such as the thrombus on excision blood vessel.
After the completion of thrombus is removed in blood vessel, by front and back ball intraluminal pressure fluid removal, front and back sacculus retracts into sacculus peace
In tankage, seal wire is moved backward, and the pre-positioning block on seal wire fits through in conduit front support set for pushing conduit to slide backward
Dynamic basket, the thrombectomy device income of collecting in turn is into casing.
The dummy pipe front end two sides are respectively arranged with miniature webcam mounting hole, and optical fiber mounting hole is pacified respectively
Equipped with miniature webcam, optical fiber, it is connected by signal wire with fiber Video connector, signal wire and fiber Video connector and view
Frequency monitor is connected, and video monitor is equipped with fibre-optic light sources, and optical fiber is given to provide light guide light source, and when operation can pass through
Video monitor Video surveillance operations.
Unidirectional thrombus remove device is configured with operation handle part.
Unidirectional thrombus remove device is connect with operation handle part by conduit.
Operation handle part has handle, and handle front end is flexibly connected with rear tube, and rear tube rear portion can be watched equipped with miniature
Motor is taken, conduit micro- rotation back and forth is driven by micro servo motor, drives micro- turn back and forth of cut-off blade on thrombectomy device
The fragment that the foreign matters such as dynamic excision Intravascular Thrombus are formed, can also by rear tube together with the cut-off blade on thrombectomy device back and forth
The fragment for pulling the foreign matters such as excision Intravascular Thrombus to be formed can be sucked out in vitro by negative pressure straw, and disintegrating slag can pass through forward and backward receipts
Collection basket collection is taken out of external.
Handle is equipped with seal wire guide wheel, operates push rod, and seal wire on seal wire guide wheel, is positioned by directive wheel by seal wire
Device positioning, seal wire are moved forward and backward through operation push rod stepping bit manipulation.
Handle is equipped with power switch, micro servo motor reversing switch, fiber Video connector, preceding sacculus catheter and connects
Head, rear sacculus drain pipe fitting, negative pressure drawing liquid connector, attaching plug.Fiber Video connector is connect with monitor video instrument.Preceding sacculus
Catheter is connected with preceding sacculus catheter connector, presss from both sides on preceding sacculus catheter equipped with preceding sacculus catheter, for controlling preceding sacculus
Catheter open and close.Sacculus catheter is connected with rear sacculus drain pipe fitting afterwards, and rear sacculus catheter is housed on rear sacculus catheter
Folder, for sacculus catheter open and close after controlling.Preceding sacculus catheter connector and rear sacculus drain pipe fitting respectively with pressure physiology
Salt water or anticoagulation pressure fluid are connected.Negative pressure drawing liquid connector is connected with negative pressure source.Attaching plug is connected with 3.6V low-tension supply.
A kind of unidirectional thrombus remove device is seen in use, through medical blood vessel radiography X-ray production apparatus under x-ray fluoroscopy observation
Size, the shape, position of the thrombus actual conditions and thrombus in blood vessel are observed, and the unidirectional thrombus remove device of invention is entered
Into blood vessel, there are the positions of thrombotic tissue.
Working principle:
Unidirectional thrombus remove device in use, be configured with operation handle part,
Thrombus remove device, which is first entered patient together with conduit plug-in unit, by Minimally Invasive Surgery need to remove the intravascular of thrombus, pass through operation
Handle power switch opens optical fiber and fiber Video switch, and ensures that fiber Video connector is connected with monitoring frequency instrument, Ke Yitong
Miniature webcam, the optical fiber back-and-forth motion for crossing the setting of dummy pipe front end, observe the reality of the thrombus in blood vessel by fiber Video
Border situation and the size of thrombus, shape, position, or first pass through medical blood vessel radiography X-ray production apparatus and observed under x-ray fluoroscopy observation
The thrombus of invention is removed dress under x-ray fluoroscopy observation by size, the shape, position of thrombus actual conditions and thrombus in blood vessel
Set the position entered in blood vessel there are thrombotic tissue.
1, with trigger rod, push operating stick that seal wire is driven to move forward, admittance silk be transferred to guidewire port most before
Puncturing head is held, puncturing head, which passes through, needs the thrombosis region removed, the seal wire, conduit, preceding under the drive of the puncturing head of seal wire
Sacculus, front support set, thrombectomy device, collects basket, is rear sacculus, rear sacculus catheter, rear support set, complete preceding sacculus catheter
Portion moves forward.
2, unidirectional thrombus remove device stop position is the rear end of thrombus forming, and by operation handle, operating stick is completed
After move backward, make conduit, thrombectomy device, collect basket, all expose, open simultaneously forward and backward sacculus drain pipe clamp, give
Forward and backward sacculus filling liquid, forward and backward sacculus are positioned.Driving handle is continued to move along by seal wire again, and seal wire locating piece drives
Conduit opens sacculus drain pipe clamp, sacculus is made to support blood vessel to suitable size position.
3, sacculus catheter folder is preceding sacculus filling liquid before opening, and sacculus filling liquid, which reaches, before waiting is suitble to size to push operation again
Bar drives seal wire to move forward, and collection basket, thrombectomy device is made to be enough to open.
4, set forward and backward sacculus position open as shown in the figure after sacculus drain pipe clamp be rear sacculus filling liquid, make collect basket,
Thrombectomy device is enough to open, at this point, thrombectomy device, collection basket are in the open state simultaneously.
5, the micro servo motor reversing switch in operation handle is pushed, micro servo motor brings into operation and leads after driving
It manages, the cut-off blade of thrombectomy device is pushed away by clockwise, counterclockwise micro- rotation back and forth by the operation in operation handle
Bar is moved forward and backward, make front and back thrombectomy device be moved forward and backward and it is round-trip several times, thorough foreign matters such as thrombus on excision blood vessel.
6, start negative pressure drawing liquid connector in operation handle and negative pressure source drawing liquid switchs, before starting extraction by negative pressure straw
Thrombus fragment and foreign matter among sacculus afterwards can be by thrombus fragment in blood vessel and different by negative pressure straw negative-pressure ward
The suction of object fragment is clean, and in big foreign matter and Biochemical analyzer to the lumen of collection basket and conduit, by thrombus in blood vessel with
And foreign matter is removed completely.
7, after the completion of thrombus and foreign matter are removed in blood vessel, seal wire is recycled by the operation push rod in operation handle, then lead
Silk moves backward, and seal wire puncturing head drives conduit to move backward, and conduit moves backward pressure and collects basket, and collection basket is received set
In pipe, then pressure thrombectomy device blade is moved backward, and thrombectomby blade is taken in casing.
8, it continues to move to seal wire while recycling forward and backward sacculus liquid, forward and backward sacculus is made to be returned to home position, push hand
Handle makes casing move forward sacculus before collection, and then conduit moves backward, and extracts thrombus remover device out.It at this moment can be by leading
The video check thrombectomby effect of pipe front end, or thrombus is checked under x-ray fluoroscopy observation by medical blood vessel radiography X-ray production apparatus
Cut off effect.
Compared with prior art, a kind of unidirectional thrombus remove device design for inventing offer is reasonable, compact-sized, user
Just, the advantage is that:
1, by conduit be arranged can in shrink or release conditions forward and backward sacculus, can utricule be in release conditions when,
Extremely of short duration closure is carried out to blood vessel, and blood is prevented to flow downward.
2, due to setting after thrombectomy device be arranged to branch tree leaf-shaped thrombectomy device, when cut-off blade is along wire catheter
When axial rotation, thrombus, patch, atherosclerotic material on cut-off blade cutting vessel inner wall.
3, seal wire front end is mounted with puncturing head, and the puncturing head is coniform puncturing head, and front end is with small
Fillet, puncturing head are provided with the cutting edge with arc, and it is firmly anti-to pass through thrombus convenient for rotary cutting, and will not puncture blood vessel.
4, collection basket is installed on conduit, for collecting the thrombus fragment and foreign matter removed, collect basket to thrombus into
Row is arrested and is taken out, and the thrombus fragment generated during capable of taking out thrombus all takes out.
5, conduit rear portion can be equipped with micromotor, be rotated by minitype motor driving conduit, drive the excision of blade cuts knife
The fragment that the foreign matters such as Intravascular Thrombus are formed can be sucked out in vitro by negative pressure straw, and disintegrating slag can pass through front and back and collect basket collection
It takes out of external.
6, catheter proximal end two sides are respectively arranged with miniature webcam mounting hole, and optical fiber mounting hole is separately installed with micro-
Type camera, optical fiber are connected by signal wire with fiber Video connector, signal wire and fiber Video connector and video monitoring
Instrument is connected, and when operation can pass through video monitor Video surveillance operations.
7, unidirectional thrombus remove device feature is that wound is small, easy to operate, and rapid-action, curative effect is accurate, securely and reliably.
8, unidirectional thrombus remove device can thoroughly remove the tamper in blood vessel.
9, can not have to place intravascular stent using unidirectional thrombus remove device (containing non-degradable and degradable).
10, unidirectional thrombus remove device can remove the foreign matters such as different parts thrombus in human body.
Detailed description of the invention
Below with reference to attached drawing, the invention will be further described:
Fig. 1 is unidirectional thrombus remove device opening state structural schematic diagram.
Fig. 2 is unidirectional thrombus remove device closed state structural schematic diagram.
Fig. 3 is the mating operation handle part use state diagram of unidirectional thrombus remove device.
Fig. 4 is vascular thrombosis status diagram.
Fig. 5 is that unidirectional thrombus remove device removes schematic diagram before vascular thrombosis.
Fig. 6 is that unidirectional thrombus remove device removes vascular thrombosis process schematic.
Fig. 7 is schematic diagram after vascular thrombosis is removed.
Fig. 8 is the matched operation handle partial structure diagram of unidirectional thrombus remove device.
In figure: 1, thrombus remove device, 2, operation handle part, 3, blood vessel, 4, thrombus, 1-1, puncturing head, 1-2, seal wire,
1-3, conduit, 1-4, preceding sacculus, 1-5, preceding sacculus catheter, 1-6, front support set, 1-7, collection basket, 1-8, thrombectomy device,
1-9, rear sacculus, 1-10, rear sacculus catheter, 1-11, rear support set, 1-12, casing, 1-13, negative pressure straw；1-2-1, positioning
Block, 1-3-1, preceding sacculus mounting groove, 1-3-2, rear sacculus mounting groove, 1-3-3, miniature webcam, 1-3-4, optical fiber, 1-3-
5, signal wire.
Specific embodiment
Referring to attached drawing 1- Fig. 8, thrombus remove device 1 includes puncturing head 1-1, seal wire 1-2, conduit 1-3, preceding sacculus 1-4, preceding
Sacculus catheter 1-5, front support set 1-6, collect basket 1-7, thrombectomy device 1-8, rear sacculus 1-9, rear sacculus catheter 1-10,
Rear support covers 1-11, casing 1-12, negative pressure straw 1-13.
Casing 1-12 is sleeved on outside conduit 1-3, sacculus mounting groove 1-3-1 before conduit front is provided with, preceding sacculus 1-4 peace
In preceding sacculus mounting groove 1-3-1, preceding sacculus catheter 1-5 is connected with preceding sacculus 1-4, is provided with front support in conduit 1-3
1-6 is covered, positioning conduit 1-3, preceding sacculus 1-4, preceding sacculus catheter 1-5 are used to support.At the preceding rear portion sacculus mounting groove 1-3-1
Thrombectomy device 1-8 is provided on conduit 1-3.
It is equipped on thrombectomy device 1-8 rear duct 1-3 and collects basket 1-7, it is broken for collecting the thrombus removed
Piece and foreign matter.
Sacculus mounting groove 1-3-2, rear sacculus 1-9 are mounted on rear sacculus after being provided on collecting basket 1-7 rear duct 1-3
In mounting groove 1-3-2, rear sacculus catheter 1-10 is connected with rear sacculus 1-9, is provided with rear support set 1-11 in conduit 1-3, uses
Sacculus, rear foley's tube after support conduit positioning.It is provided on rear support set 1-11 in conduit 1-3 and negative pressure straw 1- is installed
13, thrombus fragment and foreign matter are removed for negative-pressure ward thrombectomy device, thrombus fragment and foreign matter negative pressure will be removed
Suction excretes.
The seal wire 1-2 sequentially passes through conduit 1-3, rear support set 1-11, front support set 1-6, the installation of the front end seal wire 1-2
It is fixed with puncturing head 1-1, the puncturing head 1-1 is coniform puncturing head, and front end has small round corner.Puncturing head 1-1 can be set
It is equipped with the cutting edge with arc, passes through thrombus lump convenient for rotary cutting, and blood vessel will not be punctured.
The thrombectomy device 1-8 is provided with branches and leaves shape thrombectomy device, before branches and leaves shape cut-off blade is distributed across
On rear tube excircle, cut-off blade shape is leaf shape, strip, triangle, rectangular, oval.Work as catheter movement, guide sleeve
1-3, which slides backward cut-off blade after certain distance and flicks, forms certain angle with conduit, and the size of angle is by conduit forward slip
Distance determine that the material of blade uses Nitinol, alloy, nylon, PTFE(Teflon elastoplastic silk) etc. materials be made.
When cut-off blade micro- rotation back and forth axial along seal wire 1-2, conduit 1-3, thrombus on cut-off blade cutting vessel inner wall, patch,
Atherosclerotic material.
The collection basket 1-7 is made of Nitinol metal mesh shaped braided fabric.
The front end seal wire 1-2 is equipped with locating piece 1-2-1.The catheter proximal end portion setting is conical, and is arranged
There is seal wire through-hole.
Seal wire 1-2 is installed in the conduit 1-3, front and back sacculus catheter, negative pressure straw 1-13, optical fiber, is taken the photograph
As signal transmssion line etc..
The conduit 1-3 is inserted into vascular thrombosis position, and seal wire 1-2 is moved forward, and the locating piece on seal wire 1-2 is by leading
Pipe front end pushes conduit forward slip, and collection basket 1-7, thrombectomy device 1-8 are released from casing 1-12, and then are collected before opening
Basket 1-7, thrombectomy device 1-8 after positioning, open forward and backward sacculus drain pipe clamp, to give forward and backward sacculus filling liquid, and position
Forward and backward sacculus can carry out the foreign matters such as the thrombus on excision blood vessel.
After the completion of thrombus is removed in blood vessel, by front and back ball intraluminal pressure fluid removal, front and back sacculus retracts into sacculus peace
In tankage, seal wire is moved backward, and the pre-positioning block on seal wire fits through in conduit front support set for pushing conduit to slide backward
Dynamic basket, the thrombectomy device income of collecting in turn is into casing.
The front end the conduit 1-3 two sides are respectively arranged with miniature webcam mounting hole, and optical fiber mounting hole is pacified respectively
Equipped with miniature webcam 1-3-3, optical fiber 1-3-4, it is connected by signal wire 1-3-5 with fiber Video connector, signal wire 1-
3-5 is connected with fiber Video connector with video monitor, and video monitor is equipped with fibre-optic light sources, provides light to optical fiber
Guide-lighting source, when operation, can pass through video monitor Video surveillance operations.
Unidirectional thrombus remove device 1 is configured with operation handle part 2.
Thrombus remove device 1 is connect with operation handle part 2 by conduit 1-3.
Operation handle part 2 has handle 2-1, and the front end handle 2-1 is flexibly connected with conduit 1-3, and the rear portion conduit 1-3 can fill
There is micro servo motor 2-2, conduit 1-3 micro- rotation back and forth is driven by micro servo motor 2-2, drives thrombectomy device 1-8
On the cut-off blade fragment that the equal foreign matters of thrombus 4 are formed in micro- rotation excision blood vessel 3 back and forth, can also be by rear tube together with thrombus
Cut-off blade on resectoscope 1-8 pulls the fragment that the foreign matters such as thrombus 4 are formed in excision blood vessel 3 back and forth, can be inhaled by negative pressure
Pipe 1-13 is sucked out in vitro, and disintegrating slag can be collected by forward and backward collection basket and be taken out of in vitro.
Handle 2-1 is equipped with seal wire guide wheel 2-4, operates push rod 2-5, and seal wire 1-2 is led by directive wheel 2-12 wound on seal wire
It takes turns on 2-4, is positioned by seal wire locator 2-11, seal wire is moved forward and backward through operation push rod stepping bit manipulation.
Handle 2-1 is equipped with power switch 2-3, micro servo motor reversing switch 2-13, fiber Video connector 2-6, preceding
Sacculus drain pipe fitting 2-7, rear sacculus drain pipe fitting 2-9, negative pressure drawing liquid connector 2-8, attaching plug 2-10.Fiber Video connects
Head 2-6 is connect with monitor video instrument.Preceding sacculus catheter 1-5 is connected with preceding sacculus catheter connector 2-7, on preceding sacculus catheter
2-14 is pressed from both sides equipped with preceding sacculus catheter, for sacculus catheter open and close before controlling.Sacculus catheter 1-10 and rear sacculus drain afterwards
Pipe fitting 2-9 is connected, and rear sacculus drain pipe clamp 2-15 is housed on rear sacculus catheter 1-10, for sacculus catheter after controlling
Open and close.Preceding sacculus catheter connector 2-7 and rear sacculus drain pipe fitting 2-9 respectively with pressure physiological saline or anticoagulation pressure
Liquid phase connects.Negative pressure drawing liquid connector 2-8 is connected with negative pressure source.Attaching plug 2-10 is connected with 3.6V low-tension supply.
A kind of thrombus remove device is observed in use, through medical blood vessel radiography X-ray production apparatus under x-ray fluoroscopy observation
Size, the shape, position of thrombus actual conditions and thrombus in blood vessel, and the thrombus remove device of invention is entered in blood vessel
There are the positions of thrombotic tissue.
Working principle:
Unidirectional thrombus remove device in use, be configured with operation handle part,
Thrombus remove device, which is first entered patient together with conduit plug-in unit, by Minimally Invasive Surgery need to remove the intravascular of thrombus, pass through operation
Handle power switch opens optical fiber and fiber Video switch, and ensures that fiber Video connector is connected with monitoring frequency instrument, Ke Yitong
Miniature webcam, the optical fiber back-and-forth motion for crossing the setting of dummy pipe front end, observe the reality of the thrombus in blood vessel by fiber Video
Border situation and the size of thrombus, shape, position, or first pass through medical blood vessel radiography X-ray production apparatus and observed under x-ray fluoroscopy observation
The thrombus of invention is removed dress under x-ray fluoroscopy observation by size, the shape, position of thrombus actual conditions and thrombus in blood vessel
Set the position entered in blood vessel there are thrombotic tissue.
1, with trigger rod, push operating stick that seal wire is driven to move forward, admittance silk be transferred to guidewire port most before
Puncturing head is held, puncturing head, which passes through, needs the thrombosis region removed, the seal wire, conduit, preceding under the drive of the puncturing head of seal wire
Sacculus, front support set, thrombectomy device, collects basket, is rear sacculus, rear sacculus catheter, rear support set, complete preceding sacculus catheter
Portion moves forward.
2, thrombus remove device stop position is the rear end of thrombus forming, and by operation handle, operating stick is completed backward
After move, make conduit, thrombectomy device, collect basket, all expose, forward and backward sacculus drain pipe clamp is opened simultaneously, to forward and backward
Sacculus filling liquid, forward and backward sacculus are positioned.Driving handle is continued to move along by seal wire again, and seal wire locating piece drives conduit,
Sacculus drain pipe clamp is opened, sacculus is made to support blood vessel to suitable size position.
3, sacculus catheter folder 2-14 is preceding sacculus filling liquid before opening, and sacculus 1-4 filling liquid, which reaches, before waiting is suitble to size again
It pushes operating stick that seal wire 1-2 is driven to move forward, collection basket 1-7, thrombectomy device 1-8 is made to be enough to open.
4, set forward and backward sacculus position open as shown in the figure after sacculus drain pipe clamp 2-15 be rear sacculus 1-9 filling liquid, make
Collection basket 1-7, thrombectomy device 1-8 are enough to open, at this point, thrombectomy device 1-8, collection basket 1-7 are in the open state simultaneously.
5, the micro servo motor reversing switch 2-13 in operation handle is pushed, micro servo motor brings into operation and drives
Rear tube 1-3, thrombectomy device 1-8 cut-off blade by clockwise, counterclockwise micro- rotation back and forth, and pass through operation handle
On operation push rod 2-5 be moved forward and backward, make front and back thrombectomy device be moved forward and backward and it is round-trip several times, thorough excision 3 inner wall of blood vessel
On the equal foreign matters of thrombus 4.
6, start negative pressure drawing liquid connector 2-8 in operation handle and negative pressure source drawing liquid switchs, opened by negative pressure straw 1-13
The thrombus fragment and foreign matter for beginning to extract among the sacculus of front and back can be by blood in blood vessel by negative pressure straw 1-13 negative-pressure ward
Bolt fragment and the suction of foreign matter fragment are clean, and in big foreign matter and Biochemical analyzer to the lumen for collecting basket and conduit, incite somebody to action
Thrombus and foreign matter are removed clean in blood vessel.
7, after the completion of thrombus and foreign matter are removed in blood vessel, seal wire is recycled by the operation push rod 2-5 in operation handle, it will
Seal wire 1-2 is moved backward, and seal wire puncturing head drives conduit to move backward, and conduit 1-3 moves backward pressure and collects basket 1-7, and handle
It collects basket to receive in casing 1-12, then moves backward pressure thrombectomy device blade, and thrombectomby blade is taken in set 1-12
In pipe.
8, it continues to move to seal wire 1-2 while recycling forward and backward sacculus liquid, forward and backward sacculus is made to be returned to home position, push
Handle makes casing 1-12 move forward sacculus before collection, and then conduit 1-3 is moved backward, and extracts thrombus remover device out.At this moment
It can be observed by the video check thrombectomby effect of catheter proximal end, or by medical blood vessel radiography X-ray production apparatus in x-ray fluoroscopy
Lower inspection thrombectomby effect.
Can be by the video check thrombectomby effect of catheter proximal end in surgical procedure, or pass through medical blood vessel radiography X
X-ray machine X checks thrombectomby effect under x-ray fluoroscopy observation.
Claims (10)
1. a kind of unidirectional thrombus remove device, which is characterized in that including puncturing head, seal wire, conduit, preceding sacculus, preceding sacculus drain
Pipe, collects basket, thrombectomy device, rear sacculus, rear sacculus catheter, rear support set, casing and negative pressure straw at front support set；
Casing is sleeved on outside conduit, sacculus mounting groove before conduit front is provided with, before preceding sacculus is mounted in sacculus mounting groove,
Preceding sacculus catheter is connected with preceding sacculus, is provided with front support set in conduit, is used to support positioning conduit, preceding sacculus, preceding sacculus
Catheter is provided with thrombectomy device on the conduit at preceding sacculus mounting groove rear portion；
Collection basket is installed in thrombectomy device rear duct, for collecting the thrombus fragment and foreign matter removed；
Sacculus mounting groove after being provided on collecting basket rear duct, rear sacculus are mounted in rear sacculus mounting groove, and rear sacculus is led
Liquid pipe is connected with rear sacculus, is provided with rear support set in conduit, is used to support sacculus, rear foley's tube after conduit positioning；It is leading
Pipe, which is provided with rear support and puts on, is equipped with negative pressure straw, removes thrombus fragment and different for negative-pressure ward thrombectomy device
Object.
2. a kind of unidirectional thrombus remove device according to claim 1, which is characterized in that the seal wire, which sequentially passes through, leads
Pipe, rear support set, front support set, seal wire front end is mounted with puncturing head.
3. a kind of unidirectional thrombus remove device according to claim 1, which is characterized in that the puncturing head is coniform
Puncturing head, front end has small round corner, and puncturing head is provided with the cutting edge with arc, pass through thrombus lump convenient for rotary cutting,
Blood vessel will not be punctured again.
4. a kind of unidirectional thrombus remove device according to claim 1, which is characterized in that the thrombectomy device setting
There is branches and leaves shape cut-off blade, branches and leaves shape cut-off blade is distributed across on the conduit excircle of front and back, and cut-off blade shape is leaf
It is shape, strip, triangle, rectangular, oval；When conduit travels forward, guide sleeve slides backward cut-off blade bullet after certain distance
It opens and forms certain angle with conduit, the material of blade uses Nitinol, alloy, nylon, PTFE Teflon elastoplastic silk material
Material is made.
5. a kind of unidirectional thrombus remove device according to claim 1, which is characterized in that the collection basket uses NiTi
Alloying metal mesh-like braided fabric is made.
6. a kind of unidirectional thrombus remove device according to claim 1, which is characterized in that the seal wire front end is equipped with
Pre-positioning block, rear support, which covers, is equipped with post-positioning block on the seal wire of rear portion;The catheter proximal end portion setting is conical, and is provided with and leads
Silk through-hole.
7. a kind of unidirectional thrombus remove device according to claim 1, which is characterized in that
The dummy pipe front end two sides are respectively arranged with miniature webcam mounting hole, and optical fiber mounting hole is separately installed with
Miniature webcam, optical fiber are connected by signal wire with fiber Video connector, and signal wire and fiber Video connector and video are supervised
It controls instrument to be connected, video monitor is equipped with fibre-optic light sources, and optical fiber is given to provide light guide light source, and when operation can pass through video
Monitor Video surveillance operations.
8. a kind of unidirectional thrombus remove device according to claim 1, which is characterized in that unidirectional thrombus remove device is mating
There is operation handle part, thrombus remove device is connect with operation handle part by conduit;
Operation handle part has handle, and handle front end is flexibly connected with rear tube, and rear tube rear portion is equipped with micro servo motor,
Conduit micro- rotation back and forth is driven by micro servo motor, driving the cut-off blade on thrombectomy device, micro- rotation cuts off blood back and forth
The fragment that thrombus, foreign matter are formed in managing.
9. a kind of unidirectional thrombus remove device according to claim 8, which is characterized in that handle is equipped with seal wire guide wheel, behaviour
Make push rod, seal wire on seal wire guide wheel, is positioned by directive wheel by seal wire locator, and seal wire back-and-forth motion passes through operation
Push rod stepping bit manipulation.
10. a kind of unidirectional thrombus remove device according to claim 8, which is characterized in that handle be equipped with power switch,
Micro servo motor reversing switch, fiber Video connector, preceding sacculus catheter connector, rear sacculus drain pipe fitting, negative pressure drawing liquid
Connector, attaching plug；Fiber Video connector is connect with monitor video instrument；Preceding sacculus catheter and preceding sacculus catheter connector phase
Even, it is pressed from both sides on preceding sacculus catheter equipped with preceding sacculus catheter, for sacculus catheter open and close before controlling；Afterwards sacculus catheter with
Sacculus drain pipe fitting is connected afterwards, and rear sacculus drain pipe clamp is housed on rear sacculus catheter, opened for sacculus catheter after controlling,
It closes；Preceding sacculus catheter connector and rear sacculus drain pipe fitting are connected with pressure physiological saline or anticoagulation pressure fluid respectively；It is negative
Pressure drawing liquid connector is connected with negative pressure source；Attaching plug is connected with low-tension supply.
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|---|---|---|---|
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| CN114916996A (en) * | 2021-12-01 | 2022-08-19 | 首都医科大学宣武医院 | Thrombus removing assembly |
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| CN109998635B (en) | 2024-03-26 |
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