CN207590810U - Implantation material transport system - Google Patents

Implantation material transport system Download PDF

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Publication number
CN207590810U
CN207590810U CN201720284617.XU CN201720284617U CN207590810U CN 207590810 U CN207590810 U CN 207590810U CN 201720284617 U CN201720284617 U CN 201720284617U CN 207590810 U CN207590810 U CN 207590810U
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CN
China
Prior art keywords
implantation material
connecting rod
mechanism
transport system
ring
Prior art date
Application number
CN201720284617.XU
Other languages
Chinese (zh)
Inventor
白厄尔
迪恩·谢弗
杰罗姆·克洛伊
丹·丁
路易斯·卡德纳斯
冯骋骋
钱承
保罗·道
乔纳森·波兰斯基
克里斯多夫·弗莱厄蒂
保罗·埃林格
Original Assignee
上海沃比医疗科技有限公司
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Publication date
Priority to US201662368927P priority Critical
Priority to US62/368,927 priority
Application filed by 上海沃比医疗科技有限公司 filed Critical 上海沃比医疗科技有限公司
Application granted granted Critical
Publication of CN207590810U publication Critical patent/CN207590810U/en

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/95Instruments specially adapted for placement or removal of stents or stent-grafts
    • A61F2/962Instruments specially adapted for placement or removal of stents or stent-grafts having an outer sleeve
    • A61F2/97Instruments specially adapted for placement or removal of stents or stent-grafts having an outer sleeve the outer sleeve being splittable
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/12Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/12Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
    • A61B17/12022Occluding by internal devices, e.g. balloons or releasable wires
    • A61B2017/1205Introduction devices
    • A61B2017/12054Details concerning the detachment of the occluding device from the introduction device

Abstract

The utility model discloses a kind of implantation material transport system, including the implantation material with mesh mechanism;Include the releasing mechanism of the connecting rod containing distal portion point, the releasing mechanism is attached to the mesh mechanism of the implantation material;And the controlling mechanism that its construction and layout make the releasing mechanism be detached from the implantation material to manipulate the releasing mechanism;The mesh mechanism includes the filiform with ring, and the releasing mechanism includes pin, and the filiform winds the pin, and the connecting rod captures the ring the connecting rod and the pin across the ring, and the retraction of the connecting rod discharges the implantation material.Implantation material transport system provided by the utility model can carry out implantation material quick release in desired implantation position.

Description

Implantation material transport system

The application is associated with a U.S. Provisional Patent Application, number of patent application 62/368,927, entitled " implantation material Transport system and method are filed on July 29th, 2016, this application content will be added to for the purpose of reference in full text.

Technical field

The utility model is related to a kind of system for conveying one or more implantation materials for patient more particularly to a kind of energy The implantation material transport system and equipment of implantation material quick release are carried out in desired implantation position.

Background technology

Vascular occlusion equipment, stent and other implantation materials are used for various medical treatment, are limited including endovascular aneurysm and blood vessel The treatment of system.Vascular occluding device generally includes one and is fixed in blood vessel or artery knurl, soft such as blood vessel or cerebral aneurysm Spiral wound spring ring.Stent may include the fexible bias pressure knot of self expandable or by using expansible air bag plastic deformation Structure.Vascular occluding device, stent and other implantation materials are usually filled by the conveying based on a percutaneous conduit for introducing patient's body It puts adjoint, proceeds to and be adjacent to implantation point.The accuracy that one or more implantation materials are placed into desirable position is generally difficult to In the mode that implantation material is discharged from delivery conduit.

Thus and other reasons, to the improved system of one or more implantation materials can be accurately positioned in desired implant site System, method and apparatus presence generally need.

Invention content

The technical problem to be solved by the utility model is to provide a kind of implantation material transport systems, can be in desired implantation Position carries out the implantation material transport system and equipment of implantation material quick release.

According to the one side of the utility model concept, a kind of implantation material transport system includes the implantation with mesh mechanism Object;A kind of releasing mechanism, including the connecting rod with distal portions, the releasing mechanism is attached to the described of the implantation material and nibbles Conjunction mechanism;And a kind of control mechanism, constructing and be laid out in the manipulation releasing mechanism makes described in the releasing mechanism disengaging Implantation material;The mesh mechanism includes the filiform with ring, and the releasing mechanism includes pin, described in filiform winding Pin, and the connecting rod captures the ring the connecting rod and the pin, the retraction release of the connecting rod across the ring The implantation material.

In some embodiments, the elongated shaft set at least about a part for the connecting rod is further included, it is described elongated Axis contains proximal end, distal portions and distal end.

In some embodiments, the elongated shaft includes knitted parts.

In some embodiments, the knitted parts include the single line with about 0.0015 inch outer diameter.

In some embodiments, the knitted parts include outer diameter between 0.00125 inch and 0.0015 inch Multi cord.

In some embodiments, the knitted parts reserve the spacing close to reduction during the distal end of the elongated shaft.

In some embodiments, the elongated shaft, which is constructed and is laid out in, frictionally engages the connecting rod.

In some embodiments, the elongated shaft includes the outer tube for accounting for axis at least part position.

In some embodiments, visual marker object is further included.

In some embodiments, it further includes around at least part of axis of the connecting rod and including inner wall, it is described to nibble Conjunction mechanism includes the filiform with ring, and the releasing mechanism includes the ramped shaped protrusion to extend out from the axis inner wall With in the wedge-shaped amplifier section of the connecting rod distal portions, the ring winds the slope and the wedge-shaped amplifier section capture The ring, and the retraction of the connecting rod discharges the implantation material.

Technology described herein and its attribute and with the advantages of, combine it is following cooperation attached drawing detailed description, Wherein representative embodiment by way of example under, best will be appreciated and understand.

Description of the drawings

Fig. 1 shows consistent with this paper concept of the invention for conveying implantation material to the schematic diagram of the system of patient's body.

Fig. 2 shows consistent with this paper concept of the invention for conveying implantation material to the system of patient's body, and including The schematic diagram of one or more functions element.

Fig. 3 shows the side sectional view of the implantation material based on spring ring consistent with this paper concept of the invention.

Fig. 4 and Fig. 4 A show the implantation material transport system consistent with this paper concept of the invention.

Fig. 5 A-B show implantation material and releasing mechanism interface in the implantation material transport system consistent with this paper concept of the invention Side sectional view.

Fig. 6 shows the side view of the medical instrument central axis consistent with this paper concept of the invention.

Fig. 7 shows the perspective view of the spring ring of the implantation material consistent with this paper concept of the invention.

Fig. 8 shows the perspective view of the spring ring of the implantation material consistent with this paper concept of the invention.

Specific embodiment

It will be described in detail the embodiment of this technology now, case regular meeting is illustrated with attached drawing.Identical reference number It is used for the same or similar part throughout the drawings.

It is to be understood that word " comprising " herein (and other any forms of this word, such as " wrapped Include "), " having " (and other any forms of this word, such as " having had "), " include " (and this word other What form, for example, " included) or " containing " (and other any forms of this word, such as " comprising "), be for The existing characteristic of statement, integer, step, operation, element and/or component etc., but be not excluded for showing or increase one or more Other characteristics, integer, step, operation, element, component and/or combination thereof.

Although will be further appreciated that first, second, the clauses such as third can be used for describing various limits herein System, element, component, region, level and/or section, these limitations, element, component, region, level and/or section should not It is limited by these clauses.These clauses only distinguish a limitation with what, element, component, region, level or section and another The difference of a limitation, element, component, region, level or section.Therefore, first limitation being discussed below, element, component, Region, level or section can be referred to as the second limitation, element, component, region, level or section, without departing from current application Guideline.

It will be further appreciated that when an element is referred to as " ", " subsidiary ", " connection " or " pairs of " to another member When plain, it directly over or can be higher than or connect or in pairs in intermediate existing for another element or one or more Element.On the contrary, when an element is referred to as " directly existing ", " directly subsidiary ", " being directly connected to " or " directly in pairs " to another member When plain, there is no neutral elements.Between describing element with what other words of relationship should by it is similar it is following in a manner of solved Release (for example, " between " with respect to what " directly between ", " adjacent " and " direct neighbor " etc.).

It will be further appreciated that be referred to as " " when the first element, " on " and/or during " inside " second element, First element can be positioned so that:In the inner space of second element, (for example, second in certain part of second element In the wall of element);On the externally and/or internally surface of second element;And the combination of above-mentioned one or more forms.

As used herein, word " neighbouring " should include for a reference cell or other positions, on position It is close, above, inside and/or enter.

Space relative terms, such as " ... under ", " ... below ", " being less than ", " being higher than ", " above " and class As word one element and/or the relationship of feature and other elements (s) and/or feature (s) can be described with what, such as institute in figure It enumerates.It will be further appreciated that space relative terms are intended to comprising the use other than attached drawing description and/or operating device Different modes.If for example, the device in a figure is reversed, it is described as be in other elements and features before " ... below " and/or " ... under " element can become be located at other elements or features " above ".The device can In addition (such as be rotated by 90 ° or other orientation) is positioned, and corresponding explanation is made for space description here.

Term " reduction " used herein, " reduction ", " reduction " and similar word, the reduction including amount, including subtracting Less to zero.Reducing the possibility of an example should include preventing its generation.

Whether term "and/or" herein is two groups of specific functions of specific confirmation or element with or without another It is a.For example, " A and/or B ", which is regarded as specific confirmation, shows each (i) A;(ii) B and (iii) A and B, as figure herein In be each individually to set.

For describing a non-circular geometry, geometry is regarded as one and connects " diameter " word herein The illusion diameter of a circle of its nearly description.For example, during description cross section, such as the cross section of a component, term " diameter " application To describe the imaginary diameter of a circle for thering is same circular transverse cross section to accumulate with module transverse section.

Term used herein:One component " long axis " and " short axle " are to respectively refer to that institute's component can be surrounded completely most The length and diameter of the hypothesis cylinder of small size.

It is understood that certain features of the present invention, for the sake of clarity, in the described in the text of different embodiments, It may also illustrate in individual event scheme in a joint manner.Opposite, multiple features in the present invention, for simplification, in individual event The described in the text of scheme, it is also possible to separate or with any suitable sub-combination explanation.Such as, it is possible to understand that any right All features (no matter independence or subordinate) stated in it is required that, can be combined with any given mode.

It provided herein is the one or more implantation materials of conveying to the system of patient's body, device and method, such as accurately In the one or more implantation spring rings to aneurysm of ground conveying.A kind of medical delivery system includes the plant of one or more implantation materials Enter object transport system, each implantation material includes an engaging portion.Implantation material transport system further includes a releasing mechanism and one A controlling mechanism.Relieving mechanism includes a connecting rod, and the other parts and implantation material of the connecting rod or the releasing mechanism are nibbled Part is closed to be meshed.Controlling mechanism is constructed and arranged as control link, promotes releasing mechanism in the scheduled position of patient's body It is detached from from implantation material.System and equipment in concept of the present invention can be constructed and arranged as discharging rapidly implantation material, so Implantation is allowed to be transported to the accuracy in patient's body precalculated position.

With reference to Fig. 1, schematic diagram explains a conveying implantation material consistent with concept of the present invention to the system of patient.System System 10 includes an implantation material transport system 100, which includes controlling mechanism 120, releasing mechanism 140 and implantation material 160. Implantation material 160 includes mesh mechanism 170.The releasing mechanism 140 that is constructed and arranged to of system 10 allows operator (for example, one It is implanted into clinician) implantation material 160 is accurately transported to expected position, such as when implantation material 160 includes one or more Vascular occluding device (such as a vaso-occlusive coils), stent, overlay film frame and/or drug delivering implant, and work as Releasing mechanism 140 is constructed and arranged to discharge rapidly implantation material 160 (for example, avoiding or being greatly decreased activation controlling mechanism Delay between 120 and release implantation material 160).In some case study on implementation, system 10 is constructed and arranged to accurate delivery plant Enter in object 160 to aneurysm, such as cerebral aneurysm.In addition, system 10 can be constructed and arranged to be conveyed implantation material to being selected from One or more of the following group position:Occlusion it is intravascular or occluded before it is intravascular, such as the cerebrovascular, it is clear that will Occlusion it is intravascular, above, the inside and/or enter another patient's body position and these one or more of positions Combination.Releasing mechanism 140 can include a translatable conduit and connecting rod 141.As described herein, connecting rod 141 or Another part of releasing mechanism 140 is meshed with the mesh mechanism 170 of implantation material 160, such as advances and/or contract in device 100 Hui Shi keeps the relative position of implantation material 160 and releasing mechanism 140 to stablize constant, until the operation of one or more systems 10 Person confirms that implantation material 160 has entered and properly implants position, and releasing mechanism 140 can be detached from or otherwise from implantation at this time (implantation material 160 " being released ") is detached in object 160.Device 100 and system 10 in this paper concept of the invention are constructed and arranged as The stabilisation implant 160 when confirming one or more position, then discharged an accurate position implantation material 160 (for example, It is implanted on the exact position of cerebral aneurysm or other intracerebrals).

Device 100 can include an axis, and axis 110 at least surrounds the part of (such as slide and surround) connecting rod 141 or releases The other parts of mechanism 140 are put, axis 110 includes proximal end 111, distal portions 115 and distal end 112.In some embodiments, axis 110 at least part surrounds at least part of controlling mechanism 120.In some embodiments, at least part of axis 110 (for example, all or part of of distal portions 115) surrounds at least part of implantation material 160.

Controlling mechanism 120 is built and is arranged as control link 141, for example, translation (such as advance and/or bounce back) or Swivel link 141.The adequately translation of connecting rod 141 and/or rotation (for example, translation and/or rotation of a predetermined quantity) cause Implantation material 160 is released (such as being detached from connecting rod 141 or 140 another part of releasing mechanism).Connecting rod 141 can connect (for example, It is permanently connected) in a part for controlling mechanism 120, such as when connecting rod 141 is attached, welding, curling is riveted and/or is tied It closes onto an axis, shell, another part of pipe and/or releasing mechanism 140.

In some embodiments, controlling mechanism 120 includes a handle comprising mechanical component (for example, mechanical component Including one or more cams, gear, motor and/or connecting rod), the handle is configured as translation and/or swivel link 141, Such as handle 101 mentioned below, with reference to following Fig. 2.In some embodiments, controlling mechanism 120 is operationally connected to Connecting rod 141, and axis 110 is releasably connected to, so that controlling mechanism 120 can be detached from axis 110, and then quilt Operation translates and/or swivel link 141 is so that controlled reservoir implantation material 160.In some embodiments, controlling mechanism 120 releaseably connecting shaft 110.

System 10 can further comprise that one or more blood vessel guides, seal wire and/or access conduit (such as microtubular), such as Access device 300 shown in figure.For example, access device 300 can include vessel catheter sheath, for example one is gathered including high density Ethylene (HDPE) and/or polyacrylic guide sheath.It is that access device 300 can include one or more standards and/or exchange length The interventional guide wire of degree.Access device 300 can include a guiding catheter, and for example, at least a microtubular is (for example, internal diameter exists Between 0.015 and 0.025 inch, for example internal diameter is about 0.017 inch).

System 10 can also include one or more vision facilities, as illustrated in the drawing vision facilities 400.Vision facilities 400 can include one or more of being selected from the group image device:Fluorescope, X-ray production apparatus, CT scanner, nuclear magnetic resonance figures As instrument, ultrasonography instrument and combination thereof.In some embodiments, vision facilities 400 includes at least one glimmering Light microscopic is implanted into the patient for guide device 100, and the positioning implants 160 in implantation.One or more in device 100 A component may include a visual marker (for example, radiopaque label, magnetic and/or visible label of ultrasound), such as One visual marker be located in a component in being selected from the group the inside, above and/or in vivo:Mesh mechanism 170 and/or The other parts of the other parts of implantation material 160, connecting rod 141 and/or releasing mechanism 140;Axis 110;And it is above-mentioned middle a kind of or A variety of combinations.

In some embodiments, axis 110, controlling mechanism 120, releasing mechanism 140 and/or implantation material 160 have following The similar construction and arrangement, with reference to one or more figures of Fig. 2-7.In some embodiments, implantation material 160 is nibbled Conjunction mechanism 170 has similar structures and layout with one or more engaging portion 171-183 what follows.

In some embodiments, axis 110 includes a knitted parts, with reference to following Fig. 4.In some embodiments In, axis 110 may include one or more plastics and/or metal material, such as a kind of material in being selected from the group:Stainless steel;Shape Shape memory metal;Nitinol;Polymer;Shape-memory polymer;And above-mentioned one or more combinations.

In some embodiments, controlling mechanism 120 includes the proximal part of a part at least axis 110, such as coaxial 110 It is configured as the remainder separation from axis 110.In some embodiments, controlling mechanism 120 includes the close end of connecting rod 141 Divide and and/or engaged, such as by the proximal part of connecting rod 141 when connecting rod 141 is pushed into discharge implantation material 160.Control machine System 120 can be constructed and arranged as retraction connecting rod 141, as described by multiple pictures following herein.Controlling mechanism 120 can be with It is configured as promoting connecting rod 141, such as when controlling mechanism 120 includes a knob, control-rod, slide or other operable It is connected to the control mode of 141 proximal part of connecting rod.In some embodiments, controlling mechanism 120 is configured near with axis 110 End part is engaged, if axis 110 is relative to the translation (advance and/or retract) of connecting rod 141.

In some embodiments, controlling mechanism 120 includes connector, connector 122 as described below, the connection Controlling mechanism 120 can be connected to the proximal part of axis 110 by device 122.Connector 122 can be by regularly conjugate control mechanism 120 And/or axis 110 is fixedly engaged, and be releasably engageable controlling mechanism 120 and the other parts of axis 110, thus by applying Power overcomes friction engagement so that controlling mechanism 120 can be detached from axis 110.In addition, connector 122 can be fixedly connected To controlling mechanism 120 and a part for axis 110, and (for example, at an opposite midpoint) after being destroyed is constructed and arranged to, made Controlling mechanism 120 is detached from axis 110.After the separation of axis 110, controlling mechanism can be translated and/or rotate to cause connecting rod 141 Association translation and/or rotation.

In some embodiments, releasing mechanism 140 includes a part at least axis 110, such as when axis 110 includes one Or multiple grooves or hole, the groove or hole be constructed and arranged as stabilisation implant 160 and/or by releasing mechanism 140 come Help discharges implantation material 160, as described below.Releasing mechanism 140 can be configured with one or more modes in the following group To discharge implantation material 160 (for example, being deployed on one scheduled position of implantation material):Vibrational energy, the fatigue of component, light (example Such as, via one or more optical fiber), tension compresses, and torsion, torque is heated or cooled (for example, the variation of temperature causes phase Transformation or thermal expansion or thermal contraction);The injection of fluid or solid, connecting rod 141 is relative to the displacement of axis 110, sense electronics stress, Magnetism, a piezoelectric elements, a piezoresistance element, biochemical reaction, a hydrophily component, a bioactivity into Divide and/or chemically react.

Connecting rod 141 may include a kind of metal and/or a kind of plastic material, such as a kind of material selected from the group below:Stainless steel surpasses Elastic metallic, Nitinol, marmem, shape-memory polymer, polymer and group one or more in them It closes.Connecting rod 141 can include the outer diameter (OD) one between 0.001 inch and 0.005 inch, such as one about 0.002 The outer diameter of inch.In some embodiments, the internal diameter (ID) of the outer diameter (OD) of connecting rod 141 and axis 110 setting size be for The axis 110 is set to be engaged to frictionally with connecting rod 141.This frictionally engagement can be configured as preventing the meaning of connecting rod 141 Outer translation.In some embodiments, the proximal part of connecting rod 141 and/or distal portions include one with connecting rod 141 other The different attribute in part, such as a different attribute in being selected from the group:Material, diameter, cross section profile and they in one Or multiple combination.

In some embodiments, connecting rod 141 includes an amplifier section, such as enlarged described below 144, Include spherical shape, cylindrical and/or other geometry parts, diameter it is bigger than the neighbouring part of connecting rod 141 (connecting rod 141 A part is located just at proximal end or the distal portions of 4 amplifier sections 144).One or more amplifier sections 144 can be set For on the distal end of connecting rod 141 or at least distal portions.Each amplifier section 144 can connect (for example, being releasably attached) Onto mesh mechanism 170, with stabilisation implant 160, and then detached from mesh mechanism 170 so that implantation material 160 is in the phase It is accurately discharged on the implantation position of prestige.

As described above, implantation material 160 includes one or more implantable devices, such as one, it is two or more to be selected from down Implantable device in group:Vascular occluding device, stent, overlay film frame, drug delivering implant and they in one or more A combination.In some embodiments, implantation material 160 includes a vascular occluding device, and the vascular occluding device includes One or more occlusive coils, as described below, with reference to Fig. 3.In some embodiments, implantation material 160 includes an elasticity Unbiased shape, as described below, with reference to Fig. 6 and/or 7.

Implantation material 160 can include one or more filament, such as filament described below 163 and/or 180.At some In embodiment, implantation material 160 includes elastic filament 163 described below, and with reference to Fig. 3, it is complete that the elastic filament includes drawing Portion or part mesh mechanism 170 (such as all or part of filament 180 and/or ring 171), into spring ring (such as bullet Spring coil 161) fexible bias pressure or implantation material 160 be released 160 other hollow spaces of the implantation material after mechanism 140 discharges.

In some embodiments, mesh mechanism 170 includes an amplifier section, such as amplifier section 172, does not scheme to show Show, but be described below, the amplifier section includes a spherical shape, cylindrical or other geometry parts, diameter It is bigger than the neighbouring part of mesh mechanism 170 that (part for mesh mechanism 170 is located just at the proximal end or remote of 4 amplifier sections 172 End).One or more amplifier sections 172 can be positioned on a proximal end of mesh mechanism 170 or at least one proximal part.Each Amplifier section 172 can connect (such as releasable connection) to releasing mechanism 140, with stabilisation implant 160, and then from It is detached on releasing mechanism 140 so that implantation material 160 accurately discharges on desired implantation position.

One or more components on device 100 can include the geometry of a fexible bias pressure, such as a component A kind of fexible bias pressure of state in being selected from the group:It compresses (for example, distensible compressive state), expansion (such as expansion state Can be compressed), coiling or the state (for example, the flexuosity that can be straightened) with other bendings, straight line is (for example, can disk Around or bending linear state) and one or more combinations in them.In some embodiments, device 100 includes one A fexible bias pressure component, the component include a kind of material in being selected from the group:One thermal setting materials, stainless steel, Nitinol, And one or more combinations in them.

In some embodiments, releasing mechanism 140 and/or implantation material 160 are constructed and arranged as reference as described below It illustrates any one or more of in 2-5.

In some embodiments, implantation material 160 is constructed and arranged as in 5 A-B-Fig. 7 as described below with reference to diagram It is any one or more of.

In some embodiments, the one or more components of system 10 include one or more sensors, energy converter or Other function element, it is as described below with reference to Fig. 2.

With reference to Fig. 2, schematic diagram explains a conveying implantation material consistent with concept of the present invention to patient's body, and wraps The system of the element containing one or more functions.System 10 include device 100, and may include access device 300 as described above and/ Or imaging device 400.Device 100 includes controlling mechanism 120, releasing mechanism 140, implantation material 160, axis 110 and other assemblies, and And these each can be similarly constructed and be arranged as the above-mentioned similar component with reference to Fig. 1.

Device 100 in Fig. 2 can include a handle, as shown in the figure handle 101.Handle 101 may include a fixation Connection or moveable handle.Releasing mechanism 120 is at least part of to be positioned on handle 101.Handle 101 can wrap Include one or more manipulation devices, manipulation device 101a, such as button, knob, lever, trigger, switch, cam and/or its Its machinery, electric, chemical and/or fluid control machine system.In some embodiments, manipulation device 101a includes a behaviour Vertical device is constructed and arranged as promoting, and retracts and/or rotates following one or more:Axis 110, connecting rod 141 and/or release Another part of mechanism 140.

The device 100 of Fig. 2 can include one or more functions element, such as the function element 219a of axis 110 (such as schemes Show the proximal part for being located in axis 110), the function element 219b of axis 110 (such as illustrated position is in the distal portions of axis 110 115), the element 229 of controlling mechanism 120, (it can be positioned in connecting rod 141 to the function element 249 of releasing mechanism 140 It is upper, interior or near) and/or implantation material 160 function element 269, the function element 279 of mesh mechanism 170.Function element 219a, 219b, 229,249,269 and/or 279 may include a sensor, energy converter or other function element.It is one or more Function element 219a, 219b, 229,249,269 and/or 279 kinds can be operatively coupled to handle 101 via conduit On, it can be selected from the group without display but one or more of conduits in figure:Conducting wire, optical fiber, fluid delivery tube, mechanical linkage dress It puts and one or more combinations in them.

In some embodiments, one or more functions element 219a, 219b, 229,249,269 and/or 279 include One sensor, such as a sensor in being selected from the group:Biosensor, such as blood sensor, such as a blood Gas content sensor;Capacitance sensor, such as voltage sensor or current sensor;Magnetic Sensor, such as a Hall effect Inductive sensing device, mechanical pick-up device, such as strain gauge, accelerometer or flow sensor, such as ultrasonic flow sensor, chemistry Sensor and one or more combinations in them.

In some embodiments, one or more functions element 219a, 219b, 229,249,269 and/or 279 include One energy converter.Term " energy converter " described herein should be understood comprising any reception energy or any input, and generate one One component of a output or the combination of component.For example, energy converter can include an electrode, for receiving electric energy, and will be electric Tissue (for example, size according to electrode) can be assigned to.In some configurations, electronic signal is converted into any by an energy converter Output, such as light (for example, energy converter comprising a light emitting diode or light bulb), sound is (for example, super to deliver comprising being configured The piezocrystal transducer of acoustic wave energy), pressure, thermal energy, cold energy, chemical energy, mechanical energy (e.g., including a motor or spiral shell The energy converter of spool), magnetic energy and/or another electric signal (for example, bluetooth or other wireless communication units).In addition, one Physical quantity (for example, variation of physical quantity) can be converted into electric signal by energy converter.One energy converter can include any energy and pass Energy and/or reagent is passed to be configured as transmitting one or more energy in the following group to structural component, such as an energy converter Measure tissue:To the electric energy of tissue:(for example, an energy converter includes one or more electrodes), to the light energy (example of tissue Such as, an energy converter includes a laser, light emitting diode and/or optical module, such as lens or prism), to the machine of tissue Tool can (for example, an energy converter include a tissue manipulation element), to tissue acoustic energy (for example, an energy converter includes one A piezo-electric crystal);Chemical energy, electromagnetic energy, magnetic energy and one or more combinations in them.

In some embodiments, function element 219a, 219b, 249,269 and/or 279 includes one or more visual Change element, such as one or more radiopaque labels, magnetic mark and/or ultrasonic wave witness marking, the label are configured It is visualized by imaging device 400.(such as the position of one or more components or each item parts of equipment 100 are determined to help Help the positioning and deployment of implantation material 160).

It is the side sectional view of the implantation material based on spring ring consistent with concept of the present invention with reference to Fig. 3.In figure Show implantation material 160, the implantation material there are similar construction and arrangement to the implantation material 160 of Fig. 1.Implantation material 160 includes one A or multiple spring rings, spring ring 161.Spring ring 161 may include first part 161a (for example, first spring ring) and second Part 161b (for example, second spring ring).Second part 161B can be soldered to first part 161a (for example, solder joint is big 3 rings of about each spring ring).One circular tip portion, ball 162 are fixedly joined to the end of spring ring 161 End, it is positioned in the distal end of implantation material 160 with the ball, and is fixedly connected to filament 163 (such as diameter is about 0.001 Inch polypropylene fibre) end.In some embodiments, filament 163 is thin including a plurality of filament, such as two or more pieces Silk advances on ball 162 is distally connected to, and towards the proximal end of implantation material 160 (for example, along with every filament in a side-by-side fashion Proximal end be connected to ring 171).Ball 162 can include polypropylene and/or other plastic materials.Ball 162 can include a kind of bonding Agent, such as a ultraviolet curing adhesive are formed as spherical shape.162 at least part of ball be it is visual (such as not Radioparent) or it can include a visual label (such as radiopaque marker).Implantation material 160 includes nibbling Conjunction mechanism 170, the mesh mechanism include the filament 180 for being configured to a ring 171, and the filament is fixedly connected (example Such as, in anchor joint) to the proximal end of filament 163.Ring 171 can include plastics or metal material.In some embodiments, ring 171 include Nitinol, such as when ring 171 includes the cyclic annular filament that an outer diameter is about 0.001 inch.In figure 3, work as ring 171 when extending beyond the proximal end of spring ring 161, and filament 163 is shown in a tensional state (for example, as described herein If engaged with a releasing mechanism 140, the two will detach).Filament 163 is stretchable, and is biased to so that ring 171 all are partially or mostly positioned in when no tension is applied to ring 171 on spring ring 161 (such as pass through machine for releasing System 140, tension can cause filament 163 to stretch).Ring 171 is configured as engaging with releasing mechanism 140 and by controlling from releasing It puts and is detached from mechanism 140 so that implantation material 160 is accurately implanted into (for example, accurately being planted in aneurysm on expected position Enter).

In some embodiments, second part 161b includes the outer diameter smaller than first part 161a.As shown here Two part 161b can be configured as slides reception by axis 110 and/or releasing mechanism 140.In some embodiments, spring ring First part 161a includes about 10 mm outer diameters, and spring ring second part 161b includes about 7.5 millimeters of outer diameter.Spring ring A part of 161a and spring ring second part 161b can be that same direction is wound, as shown in Figure 3.In some embodiments In, the winding direction and spring ring first part 161a of the second part 161b of spring ring is opposite.

As shown in Fig. 4-Fig. 5 A-B, a part (for example, part of ring 171) for mesh mechanism 170 may display extension Beyond the proximal end of implantation material 160, such as when implantation material 160 is engaged with releasing mechanism 140, and releasing mechanism 140 applies tension to Mesh mechanism 170 (for example, stretch ring 171 and/or filament 163).Once it is discharged from releasing mechanism 140, mesh mechanism 170 Other hollow spaces (such as fexible bias pressure filament 163) of spring ring or implantation material 160 can be wholly or largely drawn into.

Equally as shown in Fig. 4-Fig. 5 A-B, the proximal end face of implantation material 160 (such as the proximal end face of mesh mechanism 170 or The proximal end face of spring ring 161) it is possibly shown as deviating (for example, a notch appears in distal end 112 from the distal end of axis 110 112 Between the proximal end face of implantation material 160).When no display notch in some embodiments, (for example, implantation material 160 Proximal end face flushed with the distal end of axis 110) diagram in notch clear explanation can be provided.

With reference to Fig. 4 and 4A, it is illustrated that the medical transport consistent with concept of the present invention send device.Fig. 4 is device 100 One side sectional view, and Fig. 4 A are the semi-transparent of the part amplification of 140 interface of releasing mechanism on implantation material 160 and device 100 Bright stereogram.Device 100 includes controlling mechanism 120, releasing mechanism 140, implantation material 160 and other assemblies, and in these Each can have similar construction and arrangement with the similar component of above-mentioned reference chart 1.As shown in figure 4, implantation material 160 includes Spring ring 161, ball 162, filament 163 and mesh mechanism 170, mesh mechanism contain the filament 180 for being configured to a ring 171. Spring ring 161 can include first part 161a and second part 161b, as with reference to shown in figure 1.Device 100 can include Axis 110, the axis include proximal end 111, distal portions 115 and distal end 112, and at least about a part for connecting rod 141. In some embodiments, axis 110 includes one or more (such as distal portions 115) outer diameters between 0.011 inch and 0.014 English Part between very little.

In some embodiments, axis 110 includes a part that is weaving or otherwise reinforcing, such as works as axis 110 include torque wire 113 as depicted (for example, the metal and/or plastic filament of one or more helical geometries, and Positioned at the outer wall of 110 distal portions of axis, into outer wall and/or positioned at inner wall).Torque wire 113 can include a monofilament lines, example Such as about 0.0015 inch of monofilament lines of diameter.Torque wire 113 can include multi cord, for example, diameter between 0.00125 inch and Multi cord between 0.0015 inch.Torque wire 113 can include a spiral geometry.

Axis 110 can include one or more tubular structures for surrounding axis 110, outer tube 114 as shown.Outer tube 114 It may include material selected from the group below:Polytetrafluoroethylene (PTFE) (PTFE), poly terephthalic acid (PET), heat-shrinkage material and they in One or more combinations.The thickness of outer tube 114 can be between 0.0010 inch and 0.0025 inch, a such as thickness The PET pipes that the PTFE tube or thickness spent for 0.0016 inch are 0.0020 inch.

Releasing mechanism 140 includes connecting rod 141, and 141 proximal part of connecting rod is operatively coupled to controlling mechanism 120, and And its being released property of distal portions be connected to mesh mechanism 170, as described below.Releasing mechanism 140 includes bolt 142, bolt 142 Axis 110 (such as adhering to, hot adhesion, riveting or the like) can be fixedly joined to.The winding of ring 171 bolt 142 (such as enclose Wind about 90 ° around bolt 142), and connecting rod 141 passes through ring 171, as shown in the figure so that ring 171 by connecting rod 141 and bolt 142 it Between interface capture, consolidate implantation material 160, until connecting rod 141 by controlling mechanism 120 fully bounce back, as described herein.Ring 171 release causes implantation material 160 accordingly to be discharged (such as being deployed in a scheduled implantation position).

Controlling mechanism 120 can include an attachment element, connector 122, and connector 122 prolongs to frictionally with axis 123 (belonging to controlling mechanism 120) of engagement is stretched, maintains the position of connecting rod 141.Connector 122 can be configured to releasably engage Axis 110 and/or outrigger shaft 123 so that by manipulation and control mechanism 120 (such as retracting) come the connecting rod 141 that bounces back.In addition, connection Device 122 can be constructed and arranged to disconnect (such as about in its central part) so that controlling mechanism 120 can be relative to axis 110 translations.Connector 122 may include a label, such as one may indicate that the point of application to disconnect the label of device 122. In some embodiments, connector 122 may include heat-shrinkage material, such as heat-shrinkable polyethylene terephthalate (PET) (such as PET that thickness is 0.0002 inch).In some embodiments, connector 122 includes a rigid plastic pipes Or metal tube, such as hypo pipeline section.In some embodiments, axis extension 123 includes proximal end (continuous) part of axis 110, institute Proximal part is stated to be configured as to detach with the rest part of axis 110 (for example, cut-out or otherwise separation).

The proximal end 111 of axis 110 can be connected to outrigger shaft 123 (as shown in Figure 4), such as work as outrigger shaft by connector 122 123 include to be constructed and arranged to and the proximal end of axis 110 111 during independent pipe (such as metal or a plastics rigid pipe) Separation.Alternatively, the extension that axis extension 123 can simply include axis 110, the extension be configured to from axis 110 its Remaining (more distal end) is partially separated (such as cut-out).Connector 122 can be constructed and arranged to disconnect at point therebetween and (such as apply Fill up enough bending forces) so that shaft extension point 123 is detached from axis 110, and then so that connecting rod 141 translates, such as herein It is described.Alternatively, 122 (if there is) of connector, outrigger shaft 123 and/or axis 110, which can be configured to rotation, makes outrigger shaft 123 from axis 110 separation.

In some embodiments, one or more openings, opening 117 are positioned in the 115 (example of distal portions of axis 110 Such as on same one side or over there), to assist the manufacture of device 100 (for example, the inner cavity of axis 110 is allowed access into, to simplify ring The winding of 171 pairs of bolts 142).Ring 171 can be placed on the proximal end of bolt 142, later, even by opening 117 (on one side or both sides) Bar 141 can be to pass through ring 171, on acquisition loop 171 to bolt 142.In these embodiments, opening 117 can be then heat-shrinked Pipe or the covering of other outer tube (not shown).In some embodiments, opening 117 is coated after bolt ring 171 winds bolt 142 Lid, such as pass through heat-shrinkable tube or other outer tubes.

It is the lateral parts perspective view between implantation material and the releasing mechanism of implantation material transport system with reference to Fig. 5 A-B, with Concept of the present invention is consistent.The implantation material transport system 100 of Fig. 5 A-B and the device 100 of Fig. 1 and/or any dress mentioned herein Putting 100 has similar structure and layout, such as including similar controlling mechanism 120, releasing mechanism 140 and/or implantation material 160. Implantation material 160 includes mesh mechanism 170, includes the filiform 180 of ring 171 as shown in the figure.Device 100 may include axis 110, packet Distal end 112 is included, and at least surrounds a part for connecting rod 141.

Releasing mechanism 140 includes connecting rod 141, is operably attached to controlling mechanism 120 on proximal part, and Its distal portions is releaseably attached to mesh mechanism 170, as described below.Releasing mechanism 140 includes protruding parts 154 '. Protruding parts 154 ' can be fixedly attached to (such as being adhesively attached, be thermally bonded, swaged forging etc.) axis 110 and/or it Protruding parts from 110 inner wall of axis.Protruding parts 154' may include wedge geometry as depicted, engage ring 171.It releases It puts mechanism 140 and also includes the wedge-shaped enlarged 146' on 141 distal end of connecting rod.When connecting rod 141 is in the advance shown in Fig. 5 A During state, enlarged 146' makes ring 171 keep the fixed position (being fixed with protruding parts 154') with mesh mechanism 170, from And stabilisation implant 160.The retraction (for example, passing through controlling mechanism 120 as described herein) of connecting rod 141 allows ring 171 can be from prominent Go out position 154' disengagings, (such as being slidably detached from when ring 171 is advanced along its slope from protruding parts 154'), so as to Discharge implantation material 160.

It is the side sectional view of the axis of medical treatment device with reference to Fig. 6, it is consistent with concept of the present invention.Axis 110 includes distal portion Points 115, middle section 106 and proximal part 105.In some embodiments, distal portions 115 are included than proximal part 105 Smaller outer diameter (OD), such as when the outer diameter of middle section 106 is in the outer diameter of proximal part 105 and the outer diameter of distal portions 115 Between transition when (for example, during outer diameter about 0.014 " to about 0.011 ").In these embodiments, the internal diameter (ID) of axis 110 Can including about 0.008 " internal diameter (such as about 0.008 " continuous internal diameter or one including about 0.008 " internal diameter or The different inner diameters of multiple portions).Equally in these embodiments, distal portions 115 can include the length of about 125mm, Middle section 106, which can include the length of about 200mm and/or proximal part 105, can include the length of about 1175mm. In some embodiments, axis 110 reduces the outer diameter of distal portions 115 by grinding or in other ways (such as to continuously subtracting Small outer diameter) and the outer diameter (such as to tapered major diameter) of middle section 106 manufacture, such as by coreless grinding technology (such as Carry out " beginning " diameter using about 0.014 " outer diameter).

It is the spring ring perspective view of implantation material with reference to Fig. 7, it is consistent with concept of the present invention.In some embodiments, root Include spring ring 161 with complex shape, such as the detour of the spring ring 161 of Fig. 7 according to the implantation material 160 of present inventive concept Shape.

It is the spring ring perspective view of implantation material with reference to Fig. 8, it is consistent with concept of the present invention.In some embodiments, root Include the spring ring 161 with winding form, such as the winding of the spring ring 161 of Fig. 8 according to the implantation material 160 of present inventive concept Shape.

In some embodiments, implantation material 160 includes one or more spring rings, and spring ring includes one or more shapes Shape, such as implantation material 160 include one or more springs of detour shape and winding form as shown in Figure 8 as shown in Figure 7 Circle.

Foregoing description and drawings propose multiple examples of current representative embodiment.According to aforementioned religion It leads, does not depart from the spirit of the present invention or in the case of its range, to those skilled in the art, various modifications add It sums it up alternate design will be apparent, the various descriptions instruction of the right of statement non-front as follows.All and this statement is equal Change and variation in meaning and scope is included in the range of this statement.

Claims (10)

1. a kind of implantation material transport system (100), which is characterized in that including:
Implantation material (160) with mesh mechanism (170);
A kind of releasing mechanism (140), including the connecting rod (141) with distal portions, the releasing mechanism is attached to the plant Enter the mesh mechanism of object;And
A kind of control mechanism (120), constructing and be laid out in the manipulation releasing mechanism makes the releasing mechanism be detached from the plant Enter object;
The mesh mechanism includes the filiform with ring, and the releasing mechanism includes pin, and the filiform winds the pin, and And the connecting rod captures the ring the connecting rod and the pin across the ring, the retraction of the connecting rod discharges the plant Enter object.
2. implantation material transport system according to claim 1, which is characterized in that further include at least about the connecting rod (141) elongated shaft (110) of part setting, the elongated shaft (110) is containing proximal end (111), distal portions (115) and far It holds (112).
3. implantation material transport system according to claim 2, which is characterized in that the elongated shaft (110) is including knit unit Point.
4. implantation material transport system according to claim 3, which is characterized in that the knitted parts include having about The single line of 0.0015 inch outer diameter.
5. implantation material transport system according to claim 3, which is characterized in that the knitted parts exist including outer diameter Multi cord between 0.00125 inch and 0.0015 inch.
6. implantation material transport system according to claim 3, which is characterized in that the knitted parts are reserved close to described thin The spacing of reduction during the distal end of long axis (110).
7. implantation material transport system according to claim 2, which is characterized in that elongated shaft (110) construction and layout Into frictionally engaging the connecting rod (141).
8. implantation material transport system according to claim 2, which is characterized in that the elongated shaft (110) is described including accounting for The outer tube of axis at least part position.
9. implantation material transport system according to claim 1, which is characterized in that further include visual marker object.
10. implantation material transport system according to claim 1, which is characterized in that further include around the connecting rod at least one Partial axis and including inner wall, the mesh mechanism includes the filiform with ring, and the releasing mechanism is included from the axis Ramped shaped protrusion that inner wall extends out and in the wedge-shaped amplifier section of the connecting rod distal portions, described in the ring winding Slope and the wedge-shaped amplifier section capture the ring, and the retraction release implantation material of the connecting rod.
CN201720284617.XU 2016-07-29 2017-03-22 Implantation material transport system CN207590810U (en)

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Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5911737A (en) * 1997-02-28 1999-06-15 The Regents Of The University Of California Microfabricated therapeutic actuators
CN1087634C (en) * 1998-05-22 2002-07-17 冶金工业部钢铁研究总院 Recoverable support and recovering apparatus therefor
US6478773B1 (en) * 1998-12-21 2002-11-12 Micrus Corporation Apparatus for deployment of micro-coil using a catheter
US8292943B2 (en) * 2003-09-03 2012-10-23 Bolton Medical, Inc. Stent graft with longitudinal support member
FR2860705B1 (en) * 2003-10-10 2006-07-14 Baltx Extrusion Device for delivering endoprothesis such as stent
US20070118207A1 (en) * 2005-05-04 2007-05-24 Aga Medical Corporation System for controlled delivery of stents and grafts
CN201379672Y (en) * 2009-04-10 2010-01-13 王 涛;田昆玲 Stent delivery device for interventional therapy
JP2012523943A (en) * 2009-04-20 2012-10-11 アチーバ メディカル リミテッド Occlusion device delivery assembly using a mechanically interlocking coupling mechanism
CN201445575U (en) * 2009-04-29 2010-05-05 天健医疗科技(苏州)有限公司 Artery tectorial membrane support and conveyer thereof
US8926588B2 (en) * 2011-07-05 2015-01-06 Medtronic Vascular, Inc. Steerable delivery catheter
CN104254287B (en) * 2012-03-29 2017-02-22 斯波瑞申有限公司 Medical devices and systems for manipulating foreign bodies and methods of using the same
US9808255B2 (en) * 2012-03-30 2017-11-07 DePuy Synthes Products, Inc. Embolic coil detachment mechanism with flexible distal member, resistive electrical heating element and shape memory polymer element
CN203619729U (en) * 2013-12-17 2014-06-04 微创心脉医疗科技(上海)有限公司 Stent conveying system and rear release component thereof
US9375333B1 (en) * 2015-03-06 2016-06-28 Covidien Lp Implantable device detachment systems and associated devices and methods

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CN207721934U (en) 2018-08-14
CN106943218A (en) 2017-07-14

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