CN110123406A - The conveying device of implantation material - Google Patents
The conveying device of implantation material Download PDFInfo
- Publication number
- CN110123406A CN110123406A CN201810106929.0A CN201810106929A CN110123406A CN 110123406 A CN110123406 A CN 110123406A CN 201810106929 A CN201810106929 A CN 201810106929A CN 110123406 A CN110123406 A CN 110123406A
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- China
- Prior art keywords
- implantation material
- freeing
- conveying device
- delivery pipe
- conveying
- Prior art date
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- 239000000463 material Substances 0.000 title claims abstract description 143
- 238000002513 implantation Methods 0.000 title claims abstract description 123
- 238000005452 bending Methods 0.000 claims abstract description 8
- 239000003550 marker Substances 0.000 claims description 8
- 239000012781 shape memory material Substances 0.000 claims description 4
- 238000004064 recycling Methods 0.000 abstract description 5
- 230000007246 mechanism Effects 0.000 description 13
- 238000010586 diagram Methods 0.000 description 8
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 6
- 210000004204 blood vessel Anatomy 0.000 description 5
- 239000013013 elastic material Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 206010058046 Post procedural complication Diseases 0.000 description 3
- 208000035965 Postoperative Complications Diseases 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 3
- 229910052737 gold Inorganic materials 0.000 description 3
- 239000010931 gold Substances 0.000 description 3
- 230000003902 lesion Effects 0.000 description 3
- 229910001000 nickel titanium Inorganic materials 0.000 description 3
- 229910052697 platinum Inorganic materials 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 229910052715 tantalum Inorganic materials 0.000 description 3
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 3
- 206010002329 Aneurysm Diseases 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000001727 in vivo Methods 0.000 description 2
- 238000007917 intracranial administration Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910000531 Co alloy Inorganic materials 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- 229920002614 Polyether block amide Polymers 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 238000009954 braiding Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000002716 delivery method Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 208000025339 heart septal defect Diseases 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 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 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 230000008733 trauma Effects 0.000 description 1
- 230000002792 vascular Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS 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
- A61F2/00—Filters 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
- A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
- A61F2/962—Instruments specially adapted for placement or removal of stents or stent-grafts having an outer sleeve
- A61F2/966—Instruments specially adapted for placement or removal of stents or stent-grafts having an outer sleeve with relative longitudinal movement between outer sleeve and prosthesis, e.g. using a push rod
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B17/12099—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder
- A61B17/12109—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder in a blood vessel
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B17/12099—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder
- A61B17/12109—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder in a blood vessel
- A61B17/12113—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder in a blood vessel within an aneurysm
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B17/12131—Occluding by internal devices, e.g. balloons or releasable wires characterised by the type of occluding device
- A61B17/1214—Coils or wires
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B2017/1205—Introduction devices
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS 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
- A61F2/00—Filters 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
- A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
- A61F2002/9534—Instruments specially adapted for placement or removal of stents or stent-grafts for repositioning of stents
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS 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
- A61F2/00—Filters 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
- A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
- A61F2/962—Instruments specially adapted for placement or removal of stents or stent-grafts having an outer sleeve
- A61F2/966—Instruments specially adapted for placement or removal of stents or stent-grafts having an outer sleeve with relative longitudinal movement between outer sleeve and prosthesis, e.g. using a push rod
- A61F2002/9665—Instruments specially adapted for placement or removal of stents or stent-grafts having an outer sleeve with relative longitudinal movement between outer sleeve and prosthesis, e.g. using a push rod with additional retaining means
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Animal Behavior & Ethology (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- Heart & Thoracic Surgery (AREA)
- General Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Molecular Biology (AREA)
- Medical Informatics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Reproductive Health (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Neurosurgery (AREA)
- Media Introduction/Drainage Providing Device (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The present invention provides a kind of conveying device of implantation material, can be realized recycling and repeatedly release of the implantation material after complete release, and reclaimer operation is simply, conveniently.The conveying device includes delivery pipe, conveying lever and frees part；The conveying lever is inserted into delivery pipe, and the part of freeing has elasticity or shape-memory properties and is used to be placed in delivery pipe, and the first end connection conveying lever for freeing part, second end is used to penetrate an at least through-hole for the proximal end of implantation material；The part of freeing is sprung back under the limitation of delivery pipe in bending, and after the limitation for eliminating delivery pipe after passing through an at least through-hole, so that the second end for freeing part can detach an at least through-hole.
Description
Technical field
The invention belongs to field of medical device, in particular to a kind of conveying device of implantation material.
Background technique
Micro trauma intervention is a kind for the treatment of means of vascular aneurysms, is usually directed to Vascular implant, such as but not only
It is limited to bracket, spring ring, aneurysm plugging device, lesion locations is delivered to by conveying device, is usually to pass through delivery guidewire
Lesion locations are reached along delivery pipe.
Most of conveying device discharges at once behind the distal end that implantation material releases delivery pipe, separates with conveying device, can not
It is recycled in delivery pipe and is discharged again again again.Such as the US8506615 United States Patent (USP) for authorizing Leynov Alexander et al.
Described in mode of movement.Some conveying device, such as authorize Monstadt Hermann et al.
Mode of movement described in DE102013014523 Deutsche Bundespatent, implantation material still have an interconnecting piece after completely out microtubular
Divide the state for connecting with transportation system and keeping compression, self-expanding is released in blood vessel again for the coupling part after freeing separation.It adopts
When with this scheme, until implantation material could discharge (i.e. implantation material is fully deployed) completely after freeing, if discovery release at this time is not
(such as coupling part fails to expand completely) completely, then can not be recycled again or be discharged again.Therefore, it is filled using existing conveying
It sets and delivery method, if there is the problems such as malposition or incomplete implantation material release in the first release of implantation material, including
It is incomplete with the release of push rod coupling part in implantation material, just it can not be adjusted by discharging implantation material again.It is this to release
Put malposition, implantation material discharges incomplete problem and will cause unfavorable complication, increase the risk of operation.
Summary of the invention
In view of this, the present invention provides a kind of conveying device of implantation material, implantation material can not only be delivered to lesion position
It sets, but also can be realized recycling and repeatedly release of the implantation material after complete release, while implantation material is being accurately positioned and complete
It can be achieved to free after full release, discharge implantation material accurately in specific position.
According to an aspect of the invention, there is provided a kind of conveying device of implantation material, including the reconciliation of delivery pipe, conveying lever
De- part；The conveying lever is inserted into the delivery pipe, and the part of freeing has elasticity or shape-memory properties and is used to be placed in described
In delivery pipe, the first end for freeing part connects the conveying lever, and second end is used to penetrate the proximal end of the implantation material
An at least through-hole；
Wherein, the part of freeing is being in bending under the limitation of the delivery pipe after an at least through-hole, and
It is sprung back after the limitation for eliminating the delivery pipe, so that the second end for freeing part can detach an at least through-hole.
Optionally, the conveying device further includes actuator, is set on the conveying lever and for driving the implantation
Object movement.
Optionally, the actuator passes through the movement of implantation material described in its friction-driven to the implantation material.
Optionally, the actuator is selected from the material that confficient of static friction is greater than 0.2.
Optionally, the conveying device further includes marker, is set to the second end for freeing part, the mark
Object is made of developing material.
Optionally, the part of freeing is made of shape-memory material.
Optionally, the tensile strength for freeing part is greater than 150Mpa or the elastic limit strain amount for freeing part
Greater than 5%.
Optionally, the part of freeing is spring structure or helical structure.
Optionally, the distal end of the delivery pipe is provided with one and frees critical point, described to free critical point by developing material system
At.
Optionally, the conveying device further includes development section, is set to the first end for freeing part.
Optionally, the proximal end of the implantation material is equipped with the connector with hole, and described hole is for allowing described free
The second end of part passes through.
Optionally, the connector is connect by a development structure with the proximal end of the implantation material.
To sum up, the conveying device of implantation material provided by the invention has the advantages that
Conveying device provided by the invention malposition occurs in the release of implantation material or implantation material release is incomplete
When, implantation material can be recovered in delivery pipe again by freeing the connection relationship of part and implantation material and conveying lever,
With the releasing position of this accurate adjustment implantation material, it is ensured that implantation material can discharge (i.e. implantation material is fully deployed) completely, to drop
Low postoperative complication reduces operation risk.Moreover, the conveying device releases itself and implantation only by means of the deformation for freeing part
The connection of object, is not only simple in structure, and easy to operate.
Detailed description of the invention
Schematic diagram when Fig. 1 is conveying device conveying implantation material provided in an embodiment of the present invention；
Schematic diagram when Fig. 2 is conveying device recycling implantation material provided in an embodiment of the present invention；
Fig. 3 is schematic diagram when conveying device provided in an embodiment of the present invention frees implantation material；
Fig. 4 is schematic diagram when conveying device provided in an embodiment of the present invention thoroughly discharges implantation material.
Specific embodiment
The conveying device of implantation material proposed by the present invention is made below in conjunction with attached drawing 1 to 4 and specific embodiment further
It is described in detail.According to following explanation, advantages and features of the invention will be become apparent from.It should be noted that attached drawing be all made of it is very simple
The form of change and use non-accurate ratio, only for the purpose of facilitating and clarifying the purpose of the embodiments of the invention.
As used in this specification, singular "a", "an" and "the" includes plural reference, unless interior
In addition appearance explicitly points out outer.It is as used in this specification, term "or" be usually to include the meaning of "and/or" and into
Enforcement, in addition in addition non-content explicitly points out.Term " proximal end " typically refers to one end that counterpart member depends on proximal operator,
" distal end " refers to the one end of counterpart member far from operator.As used in this specification, term " release completely " refers to,
The complete spread apart of implantation material, discharges into intravascular, and term " thoroughly release " refers to, implantation material and transportation system separation, thoroughly
Discharge into blood vessel.
Schematic diagram when Fig. 1 is the conveying implantation material 20 of conveying device 10 of one embodiment of the invention, as shown in Figure 1, described
Conveying device 10 includes arming mechanism 110 and the conveying mechanism 130 connecting with arming mechanism 110, wherein the arming mechanism
110 separately also connect with implantation material 20, but the arming mechanism 110 and the connection of implantation material 20 can be freed by machinery.Here, described
Implantation material 20 can be bracket, but not limited to this, it can also be other blood vessels or other lumen implantation materials, such as spring ring, artery
Tumor plugging device, artificial valve prosthese, heart septal defect plugging device etc..
The arming mechanism 110 includes freeing part 111 with elasticity or shape-memory properties in this present embodiment, described
Freeing part 111 can largely restore from bending state to straightened condition after being released from constraint, or by conveying mechanism
After 130 restraining force bending state largely can be compressed to from straightened condition.
Preferably, the material for freeing part 111 is selected from highly elastic material or elastic material, such as selected from elastic limit
Dependent variable is greater than 5% highly elastic material or elastic material.It is stretched by force it is also possible that the material for freeing part 111 is selected from
Degree is greater than the fibrous material of 150Mpa.Alternatively, the part 111 also optional spring structure or helical structure etc. of freeing has elasticity
Structure.Again alternatively, the part 111 of freeing is made of shape-memory material, marmem or shape memory can be selected from
One of polymer, such as Nitinol have good biocompatibility in human body.By the shape-memory material
Production frees part 111 at normal temperature or at a temperature of specific production in straightened condition, in the constraint by conveying mechanism 130
It is in bending state when power, and is entering in human body environment and after releasing the constraint of conveying mechanism 130, due to the variation of temperature, energy
Restore from bending state to straightened condition.
The conveying mechanism 130 includes delivery pipe 131 and the conveying lever 132 across delivery pipe 131, the conveying lever
132 include that proximal part 132a and distal portions 132b, the distal portions 132b are located at the far-end of proximal part 132a.It is excellent
Choosing, the conveying lever 132 may also include compliant section 132c and head portion 132d, the compliant section 132c are in proximal part
Between 132a and distal portions 132b, the head portion 132d is located at the far-end of distal portions 132b.
The part 111 of freeing is placed in the cavity of delivery pipe 131, and the part 111 of freeing connects the conveying lever 132.
Further, described one end (being defined as first end) for freeing part 111 is connect with the distal portions 132b of the conveying lever 132, together
The other end (being defined as second end) that Shi Suoshu frees part 111 penetrates at least one through-hole of 20 proximal end of implantation material and wears in the same direction
Out, and the second end for freeing part 111 be pierced by least one described through-hole after be bent under the constraint of 131 inner wall of delivery pipe
Sizing.However, the part 111 of freeing is not limited to U-bend, as long as freeing the axis of part 111 not point-blank and can not
It is detached from least one described through-hole.Optionally, the second end for freeing part 111 is after being pierced by least one described through-hole
Proximal direction towards conveying lever 132 is bent.
Schematic diagram when Fig. 2 is the recycling implantation material 20 of conveying device 10 of one embodiment of the invention, as shown in Fig. 2, passing through
Conveying lever 132 is pushed to the distal end of conveying device 10 or pulls delivery pipe 131 to the proximal end of conveying device 10, may make implantation material
20 are detached from the inner cavity of delivery pipe 131, at this point, still (referring specifically to free in the cavity of delivery pipe 131 if ensuring to free part 111
The second end of part 111 is in delivery pipe 131), then the recycling again of implantation material 20 may be implemented.Specifically, in the implantation
After object 20 is detached from delivery pipe 131, if its proximal end is still constrained by freeing part 111, keep connecting with conveying lever 132, at this
In the case of kind, if the releasing position of discovery implantation material 20 is incorrect or release not exclusively, can be by the close of conveying device 10
Extreme direction pulls conveying lever 132 or pushes delivery pipe 131 to the distal direction of conveying device 10, can will implantation material all or in part
20 are recovered to again in delivery pipe 131.In turn, it after the releasing position of implantation material 20 being adjusted in place, or will be unable to release
After full implantation material 20 is replaced, it can convey again and discharge implantation material 20.
Fig. 3 is the schematic diagram when conveying device 10 of one embodiment of the invention frees implantation material 20, as shown in figure 3, passing through
Delivery pipe 131 is pulled to the proximal direction of conveying device 10 or pushes conveying lever 132 to the distal direction of conveying device 10, can be made
It frees part 111 to be detached from the constraint of delivery pipe 131 and spring back, during rebound, the part 111 of freeing can be by bending springback extremely
It is straight or close to straight, so that at least one the described through-hole for detaching 20 proximal end of implantation material to free part 111 provides conveniently.
Fig. 4 is that the conveying device 10 of one embodiment of the invention thoroughly discharges implantation material 20 (i.e. implantation material and transportation system point
From) when schematic diagram, as shown in figure 4, freed described in part 111 recoil to for example close to it is straight after, can be by conveying device
10 proximal direction pulls conveying lever 132, may make that freeing part 111 progressively disengages at least one described through-hole, to release
The constraint relationship of de- part 111 and implantation material 20, enables implantation material 20 to discharge completely.
Obviously, there is malposition or implantation material 20 in the release of implantation material 20 in conveying device 10 provided in this embodiment
When release not exclusively, it can will be planted again by freeing the connection relationship of part 111 and implantation material 20 and conveying lever 132
Enter object 20 to be recovered in delivery pipe 131, with the releasing position of this accurate adjustment implantation material 20, it is ensured that implantation material 20 can be released completely
It puts, to reduce postoperative complication, reduces operation risk.Moreover, the conveying device 10 of the present embodiment is only by means of freeing part 111
Deformation release the connection of itself and implantation material 20, be not only simple in structure, and easy to operate.
Further, the conveying mechanism 130 further includes the actuator being set on the distal portions 132b of conveying lever 132
133, the actuator 133 is for driving implantation material 20 to move.In one embodiment, the actuator 133 is used for and implantation material
20 surface (such as inner surface) contact is simultaneously moved with frictional force drives implantation material 20.The actuator 133 is selectively arranged
Film on the distal portions 132b of conveying lever 132, the big material of the material selection coefficient of friction of film, including but not limited to
High molecular materials such as PTFE, silica gel, PEBAX, and shape is not limited to tubulose, helical form or sheet, connection type be not limited to it is cementing,
The modes such as thermal deformation are fixed on conveying lever 132.Preferably, the actuator 133 is selected from the material that confficient of static friction is greater than 0.2
Material.In other embodiments of the present invention, the actuator 133 is for pushing the implantation material 20 from proximal end to distal movement.?
In another embodiment, the part 111 of freeing has certain rigidity, is closed by the connection of itself and implantation material 20 and conveying lever 132
System, directly drives proximal end or distal movement of the implantation material 20 to the conveying mechanism 130, without actuator 133 is additionally arranged.
Further, the arming mechanism 110 further includes the marker 112 in the second end for freeing part 111, the mark
Know object 112 and be used to indicate position of the second end for freeing part 111 in delivery pipe 131, judges to free whether part 111 reaches with this
Whether the constraint freed critical point 134 and free part 111 is released from.Wherein, it is described free critical point 134 be set to it is described defeated
Send the distal end of pipe 131.Specifically, being pushed in conveying lever 132 to the distal end of conveying device 10 or delivery pipe 131 is to conveying device
During 10 proximal end is withdrawn, when the proximal end for observing marker 112 from delivery pipe 131 move closer to and reach free it is critical
When point 134, show that implantation material 20 has been released but has not yet freed, whether the position that can observe the release of implantation material 20 at this time is accurate
And completely (whether implantation material is fully deployed) whether release；The position that if discovery implantation material 20 discharges at this time it is less accurate or
Release not exclusively, can be by pulling conveying lever 132 to the proximal direction of conveying device 10 or to the distal direction of conveying device 10
Delivery pipe 131 is pushed, implantation material 20 is recovered in delivery pipe 131, and can be in the position of further adjustment conveying device 10
Discharge implantation material 20 again afterwards, this step is repeatable until implantation material 20 discharges completely in ideal position；Later, continue to defeated
The proximal end of device 10 is sent to withdraw delivery pipe 131, once observe that marker 112 is more than to free critical point 134 or be detached to convey
The distal end of pipe 131 then can determine that freeing constraint of the part 111 in delivery pipe 131 is released from and springs back, at this time operator
Conveying lever 132 can be withdrawn, part 111 is freed with order and detaches the through-hole of 20 proximal end of implantation material, to complete implantation material 20 and conveying
Device 130 frees separation, thoroughly discharges implantation material 20.
The marker 112 is preferably made of developing material, including but not limited to platinum, according to, developing materials such as gold, tantalum.This
Outside, the marker 112 can be tube-like piece, spring or group trap etc., and connection type can be welding, glue bonding, with solid
It is scheduled in the second end for freeing part 111.It is described to free critical point 134 and be preferably made of developing material, including but not limited to platinum,
According to, developing materials such as gold, tantalum.It is described to free critical point 134 and be symmetrical arranged, it can also be along the circumferentially extending of delivery pipe 131
And development length is less than or equal to the perimeter of delivery pipe 131.
Further, the one development section 113 of first end setting for freeing part 111, the development section 113 are made of developing material
And it is used to indicate the position for freeing the first end of part 111.And then the second end and first of part 111 is freed by X-ray development observation
The relative position at end can determine whether the deformation state for freeing part 111, be such as bent or spring back.Preferably, the part 111 of freeing
First end is linked together by the development section 113 and the distal portions 132b of the conveying lever 132.The development section 113
It can be the hollow tubular structure being wrapped on distal portions 132b, be also possible to independent tubular structure, with distal portions
132b links together.Here, the conveying lever 132 can be the bare metal bar an of variable diameter.
Further, the development section 113 is far from the side connection compliant section 132c for freeing part 111, to pass through development section
113 and compliant section 132c links together the first end for freeing part 111 and the conveying lever 132.The compliant section
132c provides support force and the flexibility in tortuous blood vessel for the conveying of implantation material 20, thus preferably conveying implantation in vivo
Object 20, especially in distal vessels such as intracranial vessel.The material of the compliant section 132c is not limited to metal, high molecular material,
Structure is not limited to spring or helical structure.For example, compliant section 132c can be wound around the spring knot on conveying lever 132
Structure, is also possible to independent spring section and conveying lever 132 links together.
Outer diameter at the compliant section 132c of the conveying lever 132 can be selected between 0.01 inch -0.05 inch, preferably be existed
0.01 inch -0.029 inch.The outer diameter of the proximal part 132a of the conveying lever 132 can 0.012 inch -0.05 inch it
Between, preferably at 0.013 inch -0.032 inch.The distal portions 132b of the conveying lever 132 can be exposed diameter metal
Bar is also possible to soft spring, and outer diameter can be between 0.009 inch -0.05 inch, preferably in 0.009 inch of -0.025 English
Between very little.
Further, the head portion 132d of the conveying lever 132 can be spring or helical structure, and head portion 132d can
With the spring structure being wound around on distal portions 132b, it is also possible to independent spring section, is connected to distal portions 132b
Together.The head portion 132d is conveyed in tortuous blood vessel for implantation material 20 and is provided certain flexibility and support force, thus
Implantation material 20 is preferably conveyed in vivo, and especially in distal vessels such as intracranial vessel, material is not limited to metal, macromolecule material
Material, outer diameter can be at 0.008 inch -0.03 inch, preferably between 0.012 inch -0.017 inch.In addition, the actuator
133 may be disposed at the proximal end of head portion 132d.In the present embodiment, in addition to head portion 132d and compliant section 132c, institute
Stating conveying lever 132 can be selected from stainless steel, NiTi, the preferable metal material of NiTi cobalt alloy equal strength, for being that implantation material 20 is defeated
It send and good power conduction is provided.
Further, the proximal end of the implantation material 20 is equipped with the connector 114 with hole, the hole on the connector 114
The second end that hole allows to free part 111 passes through.The connector 114 preferably passes through the proximal end of development structure 115 and implantation material 20
Connection.The material of the development structure 115 include but is not limited to platinum, according to, developing materials, the structure such as gold, tantalum can be tubulose, bullet
Spring or group trap, the connection type of implantation material 20 and connector 114 can be welding, cementing.The connector 114 can be selected from
The structures such as silk, band, rope, ring.
In addition, based on the above embodiment, conveying institute using the conveying device 10 the embodiment of the invention also provides a kind of
The method for stating implantation material 20, comprising:
Step 1: driving conveying lever 132 or delivery pipe 131 move, so that the implantation material 20 is detached from the delivery pipe
131, and it is placed in the second end for freeing part 111 in the delivery pipe 131；Herein, specifically to the distal end of conveying device 10
Conveying lever 132 is driven, or withdraws delivery pipe 131 to the proximal end of conveying device 10, or drive and convey to the distal end of conveying device 10
Delivery pipe 131 is withdrawn to the proximal end of conveying device 10 while bar 132；
Step 2: the direction driving delivery pipe 131 opposite with step 1 or the conveying lever 132 move, by the plant
Enter object 20 to be returned in the delivery pipe 131.Specifically, driving delivery pipe 131 to the distal end of conveying device 10, or filled to conveying
The proximal end for setting 10 withdraws conveying lever 132, or to conveying device 10 while drive delivery pipe 131 to the distal end of conveying device 10
Proximal end withdraws conveying lever 132.
Wherein, step 1 may be repeated with step 2, until the implantation material 20 discharges completely in ideal position.Such as
Implantation material 20 described in fruit can not discharge completely, after implementation steps two, can withdraw the implantation material 20 and replace new plant
Enter object, repeats step 1 and step 2 to re-start release.
Preferably, after step 2 further include:
Step 3: direction identical with step 1 drives the conveying lever 132 or the delivery pipe 131 to move, so that institute
It states implantation material 20 and is detached from the delivery pipe 131, and make described to free the constraint that part 111 is detached from the delivery pipe 131 simultaneously；
Step 4: identical with step 2 direction drives the conveying lever 132 to move, so that described free the of part 111
Two ends detach an at least through-hole.
Finally, present pre-ferred embodiments as described above, but be not limited to the above embodiments disclosed range, such as it is unlimited
In by film and to frictionally driving implantation material 20 movement, moreover, can also be arranged on the proximal end ontology of implantation material 20
Hole passes through in order to free part, and hole is such as directly prepared on the support rod of bracket, or frees part directly through braiding branch
The mesh of frame.In addition, the proximal end of the implantation material is not limited to a through-hole, it can also be multiple.
To sum up, there is malposition or plant in the release of implantation material 20 in conveying device 10 provided in an embodiment of the present invention
Enter when object 20 discharges not exclusively, it can be by freeing the connection of part 111 Yu implantation material 20 and conveying lever 132, it again will plant
Enter object 20 to be recovered in delivery pipe 131, with the releasing position of this accurate adjustment implantation material 20, it is ensured that implantation material 20 can be released completely
(i.e. implantation material is fully deployed) is put, to reduce postoperative complication, reduces operation risk.Moreover, the conveying device of the present embodiment
10 release the connection of itself and implantation material 20 only by means of the deformation for freeing part 111, are not only simple in structure, and easy to operate.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
Foregoing description is only the description to present pre-ferred embodiments, not to any restriction of the scope of the invention, this hair
Any change, the modification that the those of ordinary skill in bright field does according to the disclosure above content, belong to the protection of claims
Range.
Claims (10)
1. a kind of conveying device of implantation material characterized by comprising
One delivery pipe；
One conveying lever is inserted into the delivery pipe；And
One frees part, has elasticity or shape-memory properties and is used to be placed in the delivery pipe, the first end for freeing part
The conveying lever is connected, second end is used to penetrate an at least through-hole for the proximal end of the implantation material；
Wherein, the part of freeing is being in bending under the limitation of the delivery pipe after an at least through-hole, and is being disappeared
Except being sprung back after the limitation of the delivery pipe, so that the second end for freeing part can detach an at least through-hole.
2. the conveying device of implantation material as described in claim 1, which is characterized in that further include:
One actuator is set on the conveying lever and for driving the implantation material to move.
3. the conveying device of implantation material as described in claim 1, which is characterized in that further include:
One marker, is set to the second end for freeing part, and the marker is made of developing material.
4. the conveying device of implantation material as described in claim 1, which is characterized in that the part of freeing is by shape-memory material system
At.
5. the conveying device of implantation material as described in claim 1, which is characterized in that the tensile strength for freeing part is greater than
150Mpa or the elastic limit strain amount for freeing part are greater than 5%.
6. the conveying device of implantation material as described in claim 1, which is characterized in that the part of freeing is spring structure or spiral
Structure.
7. the conveying device of implantation material as described in claim 1, which is characterized in that the distal end of the delivery pipe is provided with a solution
De- critical point, it is described to free critical point and be made of developing material.
8. the conveying device of implantation material as described in claim 1, which is characterized in that further include:
One development section, is set to the first end for freeing part.
9. the conveying device of implantation material as described in claim 1, which is characterized in that the proximal end of the implantation material, which is equipped with, has hole
The connector in hole, described hole are used to that the second end for freeing part to be allowed to pass through.
10. the conveying device of implantation material as claimed in claim 9, which is characterized in that the connector passes through a development structure
It is connect with the proximal end of the implantation material.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810106929.0A CN110123406B (en) | 2018-02-02 | 2018-02-02 | Implant delivery device |
| PCT/CN2019/073055 WO2019149139A1 (en) | 2018-02-02 | 2019-01-25 | Delivery device for implant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810106929.0A CN110123406B (en) | 2018-02-02 | 2018-02-02 | Implant delivery device |
Publications (2)
| Publication Number | Publication Date |
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| CN110123406A true CN110123406A (en) | 2019-08-16 |
| CN110123406B CN110123406B (en) | 2024-05-17 |
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ID=67477948
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810106929.0A Active CN110123406B (en) | 2018-02-02 | 2018-02-02 | Implant delivery device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110123406B (en) |
| WO (1) | WO2019149139A1 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110840509A (en) * | 2019-12-18 | 2020-02-28 | 上海加奇生物科技苏州有限公司 | Spring ring double-wire releasing system |
| CN114948046A (en) * | 2022-04-11 | 2022-08-30 | 上海心玮医疗科技股份有限公司 | Delivery system for implant |
| CN115054803A (en) * | 2022-08-18 | 2022-09-16 | 苏州美创医疗科技有限公司 | Implant releasing mechanism and conveying device with same |
| CN115607218A (en) * | 2022-09-28 | 2023-01-17 | 上海心玮医疗科技股份有限公司 | Mechanical releasing device for intratumoral implant |
| CN116211381A (en) * | 2022-07-29 | 2023-06-06 | 杭州亿科医疗科技有限公司 | Spring ring releasing device |
| WO2023124115A1 (en) * | 2021-12-29 | 2023-07-06 | 上海臻亿医疗科技有限公司 | Detachment mechanism and delivery catheter |
| WO2024007467A1 (en) * | 2022-07-05 | 2024-01-11 | 苏州美创医疗科技有限公司 | Implant release mechanism and delivery apparatus |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113456154B (en) * | 2021-07-15 | 2023-05-26 | 上海心玮医疗科技股份有限公司 | Implant conveying guide wire |
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| CN102438533A (en) * | 2009-04-20 | 2012-05-02 | 加奇生物有限公司 | Delivery assembly for occlusion device using mechanical interlocking coupling mechanism |
| CN208910365U (en) * | 2018-02-02 | 2019-05-31 | 微创神通医疗科技（上海）有限公司 | The conveying device of implantation material |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110840509A (en) * | 2019-12-18 | 2020-02-28 | 上海加奇生物科技苏州有限公司 | Spring ring double-wire releasing system |
| CN110840509B (en) * | 2019-12-18 | 2024-06-07 | 上海加奇生物科技苏州有限公司 | Spring ring double-guide wire releasing system |
| WO2023124115A1 (en) * | 2021-12-29 | 2023-07-06 | 上海臻亿医疗科技有限公司 | Detachment mechanism and delivery catheter |
| CN114948046A (en) * | 2022-04-11 | 2022-08-30 | 上海心玮医疗科技股份有限公司 | Delivery system for implant |
| CN114948046B (en) * | 2022-04-11 | 2023-02-28 | 上海心玮医疗科技股份有限公司 | Delivery system for implant |
| WO2024007467A1 (en) * | 2022-07-05 | 2024-01-11 | 苏州美创医疗科技有限公司 | Implant release mechanism and delivery apparatus |
| CN116211381A (en) * | 2022-07-29 | 2023-06-06 | 杭州亿科医疗科技有限公司 | Spring ring releasing device |
| CN116211381B (en) * | 2022-07-29 | 2023-07-11 | 杭州亿科医疗科技有限公司 | Spring ring releasing device |
| CN115054803A (en) * | 2022-08-18 | 2022-09-16 | 苏州美创医疗科技有限公司 | Implant releasing mechanism and conveying device with same |
| CN115054803B (en) * | 2022-08-18 | 2022-11-04 | 苏州美创医疗科技有限公司 | Implant releasing mechanism and conveying device with same |
| CN115607218A (en) * | 2022-09-28 | 2023-01-17 | 上海心玮医疗科技股份有限公司 | Mechanical releasing device for intratumoral implant |
| CN115607218B (en) * | 2022-09-28 | 2023-11-07 | 上海心玮医疗科技股份有限公司 | Mechanical release device for intratumoral implant |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110123406B (en) | 2024-05-17 |
| WO2019149139A1 (en) | 2019-08-08 |
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