CN109567981A - Support system and its conveying device, rear release structure and bracket - Google Patents
Support system and its conveying device, rear release structure and bracket Download PDFInfo
- Publication number
- CN109567981A CN109567981A CN201710912006.XA CN201710912006A CN109567981A CN 109567981 A CN109567981 A CN 109567981A CN 201710912006 A CN201710912006 A CN 201710912006A CN 109567981 A CN109567981 A CN 109567981A
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- hole
- bracket
- proximal end
- conveyer
- attaching means
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- 238000007599 discharging Methods 0.000 claims abstract description 16
- 230000003578 releasing effect Effects 0.000 claims abstract description 13
- 230000008878 coupling Effects 0.000 claims description 21
- 238000010168 coupling process Methods 0.000 claims description 21
- 238000005859 coupling reaction Methods 0.000 claims description 21
- 238000006073 displacement reaction Methods 0.000 claims description 5
- 230000017531 blood circulation Effects 0.000 abstract description 9
- 230000002792 vascular Effects 0.000 description 11
- 210000000709 aorta Anatomy 0.000 description 6
- 230000001464 adherent effect Effects 0.000 description 3
- 239000008280 blood Substances 0.000 description 3
- 210000004369 blood Anatomy 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 206010002329 Aneurysm Diseases 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001727 in vivo Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 208000025494 Aortic disease Diseases 0.000 description 1
- 208000009087 False Aneurysm Diseases 0.000 description 1
- 208000035965 Postoperative Complications Diseases 0.000 description 1
- 208000025865 Ulcer Diseases 0.000 description 1
- 206010048975 Vascular pseudoaneurysm Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 238000000338 in vitro Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000003902 lesion Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 231100000397 ulcer Toxicity 0.000 description 1
- 238000004804 winding Methods 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
- A61F2/02—Prostheses implantable into the body
- A61F2/04—Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts
- A61F2/06—Blood vessels
- A61F2/07—Stent-grafts
-
- 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
Abstract
The present invention provides a kind of support system and its conveying devices, rear release structure and bracket.The proximal end of the bracket is equipped at least one proximal end interconnecting piece, each proximal end interconnecting piece has a through-hole, release structure releases the control part after including after described, at least one distal connection and release attaching means after at least one, each distal connection has another through-hole and one end of rear release attaching means is arranged in, when after release attaching means the other end connect with conveyer, and one end pass through proximal end interconnecting piece through-hole when, one end that part is released the control after described is connect across the through-hole of distal connection with conveyer, when releasing the control the other end of part after then pulling, it is extracted out from conveyer and distal connection one end that part is released the control after described, the constraint of attaching means is discharged after can unlocking, so, realize the separably attached of mount proximal end and conveyer, and then when discharging bracket, even if high speed blood flow impacts bracket Proximal end, mount proximal end will not turn down.
Description
Technical field
The present invention relates to the field of medical instrument technology, in particular to a kind of support system and its conveying device, rear release knot
Structure and bracket.
Background technique
Overlay film frame is used for the big progress that arotic disease treatment is Aortic surgery, indication includes aorta
Interlayer, aorta true aneurysm, aortic pseudoaneurysm, aorta penetrating ulcer etc..This technology greatly reduces
Operative mortality rate and postoperative complications, alleviate operation wound, and patient restores very fast.The mechanism of the treatment is, by overlay film branch
Frame opens after being sent into diseased region by special conveyer, completely cuts off knurl and blood, eliminates the big bleeding of aneurysm rupture and draws
Play the compressing of dead danger or knurl to surrounding tissue, organ.
Wherein, the accurate positioning and release of overlay film frame are the key that intervention operation, the challenge are to lead in aorta lumen
The high speed and high pressure of artery blood flow.Moment is discharged in overlay film frame, proximal end (the nearly heart may occur under the impact force of blood flow for bracket
End) fold.Mount proximal end fold is easy to cause mount proximal end adherent bad, and lesion isolation is ineffective, and bracket vertex pair
The stimulation of vascular wall increases and causes serious clinical consequences.
Therefore, mount proximal end how is avoided to be folded into for the research hotspot of aortic stents conveyer.
Summary of the invention
The purpose of the present invention is to provide a kind of support system and its conveying device, rear release structure and bracket, Neng Gou
Bracket prevents bracket from turning down under blood flow impact when discharging.
To achieve the above object, the invention discloses a kind of bracket, the proximal end of the bracket is provided at least one proximal end
Interconnecting piece, each proximal end interconnecting piece have a through-hole, and one through-hole with rear release structure for matching, with reality
The proximal end of the existing bracket is separably connected with conveyer.
Further, the present invention also provides a kind of rear release structure for the bracket, discharging structure after described includes
After release the control part, at least one distal connection and at least one after discharge attaching means, each distal connection tool
There is another through-hole and one end of the rear release attaching means is set；
The other end of release attaching means connect with the conveyer when described after, and described one end for discharging attaching means afterwards
When across one through-hole of the proximal end interconnecting piece, one end that part is released the control after described passes through the distal connection
After another described through-hole, it is connect with the conveyer；
Pull it is described after release the control the other end of part when, released the control after described one end of part from the conveyer and
It is extracted out in another described through-hole of the distal connection, to unlock the constraint of the rear release attaching means.
Optionally, the rear release structure further includes radial limiting section, and the radial direction limiting section is arranged in the conveyer
On, one end of part is released the control after described before or after passing through the distal connection, also with the radial limiting section
It combines, the radial direction limiting section is for limiting the displacement of the distal connection radially in bracket.
Optionally, the radial limiting section includes at least two through holes, and one end that part is released the control after described is passing through
A through hole is passed through before the distal connection, and another through hole is passed through after passing through the distal connection,
One through hole is compared to another described through hole close to the distal end of the conveyer.
Optionally, attaching means fixation hole is discharged after at least one is provided on the conveyer, discharges attaching means after described
The other end with it is described after release attaching means fixation hole mutually fix.
Optionally, a blind hole is provided on the conveyer, released the control after described part one end and the blind hole phase
It is fixed.
Further, the present invention separately provides a kind of conveying device, including conveyer and the rear release structure.
Optionally, the conveyer includes coupling tube and conical head, and the conical head is located at the proximal end of the coupling tube, institute
It states and is provided with radial limiting section and rear release attaching means fixation hole in coupling tube, be provided with blind hole on the conical head.
Optionally, the conveyer further includes main body control part, and the bracket is equipped with several constraint coils, the main body
One end of control piece sequentially passes through several constraint coils from the distal end of the bracket to proximal end, and passes through the radial limit
It is inserted into behind portion in one blind hole fixed.
Further, the present invention also provides a kind of support systems, including the conveying device and the bracket.
To sum up, in bracket provided by the invention and rear release structure, being equipped in the proximal end of bracket has through-hole at least
One proximal end interconnecting piece, and one end of rear release attaching means is provided with the distal connection with another through-hole, actually make
Used time, the other end that attaching means is discharged after described are connect with conveyer, while one end of the rear release attaching means passes through proximal end
One through-hole of interconnecting piece, then released the control by after part across described in bracket and distal connection another lead to
Hole, and make it is described after release the control one end of part and connect with conveyer, to realize the separable of mount proximal end and conveyer
Ground connection, in this way, the mount proximal end can get rid of the constraint of conveyer after only releasing the control part after detaching,
So, when discharging bracket, even if high speed blood flow impacts mount proximal end, mount proximal end will not be turned down, and then work as a part of bracket
After being bonded with vascular wall, part is released the control after can detaching, conveyer and mount proximal end are detached from this time, and mount proximal end is completely and blood
Tube wall fitting, at this time since most of bracket is all adherent, the bracket of proximal end can not be turned down.
The core of rear release structure of the invention is to cooperate the through-hole of mount proximal end by mount proximal end by single line shape object
On a conveyor, structure is relatively simple, and can be suitable for the bracket without naked segment structure for constraint.Using rear release of the invention
To overlay film frame original structure without larger change, the rear structure that discharges is connected on a conveyor, can be withdrawn from the end of operation structure
In vitro.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the conveying device of the embodiment of the present invention one；
Fig. 2 is the structural schematic diagram when bracket of the embodiment of the present invention one is connected with conveying device；
Schematic diagram when Fig. 3 is the support system implantation aorta of the embodiment of the present invention one；
Fig. 4 be one embodiment of the invention rear release attaching means and after when releasing the control part and being connected with bracket and conveyer
Structure principle chart.
The reference numerals are as follows:
1- conical head, 101- blind hole, 2- coupling tube, 201- third through hole, the second through hole of 202-, 203- first are penetrated through
Hole, discharges attaching means after 3-, 301- distal connection, 4- inner tube, releases the control part after 5-, 6- main body control part, 7- bracket,
The proximal end 701- interconnecting piece, 702- fetter coil.
Specific embodiment
To keep the purpose of the present invention, advantages and features clearer, below in conjunction with 1~4 pair of branch proposed by the present invention of attached drawing
Frame system and its conveying device, rear release structure and bracket are described in further detail.It should be noted that attached drawing is all made of very
Simplified form and non-accurate ratio is used, only for the purpose of facilitating and clarifying the purpose of the embodiments of the invention.
Firstly, present embodiments providing a kind of support system, including conveying device and bracket 7, the bracket 7 preferably covers
Membrane support.The conveying device includes conveyer and rear release structure.
As shown in Figures 1 to 4, the bracket 7 includes proximal end interconnecting piece 701, and the proximal end interconnecting piece 701 is located at bracket 7
Proximal end.Herein, the proximal end of bracket 7 refers to one end far from operator, when such as being treated for aorta, the bracket 7
Proximal end is close to one end of heart, i.e. proximal part (being seen clearly in Fig. 3).The proximal end interconnecting piece 701 has a through-hole,
The through-hole with following rear release structures for matching, to realize that the proximal end of the bracket 7 is separably connected with conveyer
It connects.
After described release structure include distal connection 301, rear release attaching means 3 and after release the control part 5.The distal end
Interconnecting piece 301 has another through-hole, and one end of the rear release attaching means 3 is configured with the distal connection
301。
When specifically used, the other end that attaching means 3 is discharged after described is connect with the conveyer, while the rear release is about
One end of bundle 3 passes through one through-hole of the proximal end interconnecting piece 701, then, one end of part 5 is released the control after described certainly
The distal end of bracket 7 to proximal end sequentially passes through another through-hole described in bracket 7 and distal connection 301, and the rear release
One end of control piece 5 is connect after being pierced by from another described through-hole with the conveyer, to realize mount proximal end and conveying
Device it is relatively fixed.So, when bracket 7 discharges, mount proximal end and conveyer can be realized by rear release structure
Connection, even if high speed blood flow impacts mount proximal end at this time, mount proximal end will not be turned down, in turn, once bracket 7 and vascular wall paste
It closes well, part 5 is released the control after can detaching, so that the connection of mount proximal end and conveyer is released, so that mount proximal end is complete
It is bonded with vascular wall, in the process, since bracket major part structure has been bonded with vascular wall, the holder part of proximal end
It can not turn down.
Specifically, when releasing the control part 5 after detaching, the other end (other end position of part 5 is released the control after can pulling
In external, and preferably fixed with external agency) so that after release the control one end of part 5 and connect from the conveyer and the distal end
It is detached in another described through-hole of socket part 301, to discharge the limitation of attaching means 3 after unlocking and restore the proximal end of bracket 7
Expansion state.
In the present embodiment, the bracket 7 has expansion state and compressive state.When installing the bracket 7, pass through bracket
The outer diameter (referring particularly to Fig. 3) of 702 tie bracket 7 of multiple constraint coils on 7, so that it is in compressive state that bracket 7, which is collapsed,；When
When discharging the bracket 7, by pulling the other end of following main body control parts 6 that can release the constraint of bracket outer diameter, so that
The bracket 7 is flicked in expansion state.
The proximal end interconnecting piece 701 can be one, be also possible to it is multiple, and it is described after release attaching means 3 quantity
It is consistent with proximal end interconnecting piece 701.Preferably, the quantity of the proximal end interconnecting piece 701 is multiple, in this way, discharging about after described
Bundle 3 is also multiple, release attaching means 3 one distal connection 301 of carrying after each, and a proximal end interconnecting piece 701 is permitted
Perhaps a rear release attaching means 3 passes through.In an optional scheme, the proximal end interconnecting piece 701 is set as two, that
, attaching means 3, which is discharged, after described is accordingly set as two.
For the ease of narration, be described below in using two proximal end interconnecting pieces 701 as illustrate, to further illustrate this implementation
Example support system, conveying device, bracket and after discharge structure, but not limited to this.
Optionally, the proximal end interconnecting piece 701 is the coil of a closure, and corresponding, the distal connection 301 also may be used
To be the coil of a closure.Certainly, the present invention includes but is not limited to obtain 701 He of proximal end interconnecting piece in a manner of coil closure
Any one in distal connection 301, can obtain these interconnecting pieces in a manner of aperture.For example, in the close of bracket
The coil of two closures of end binding forms two proximal end interconnecting pieces 701, alternatively, cutting forms two perforations in mount proximal end
Hole and obtain two proximal end interconnecting pieces 701.For example, winding one end of rear release attaching means 3 to form a distal connection
301, or open up the hole of a perforation in one end of rear release attaching means 3 and obtain a distal connection 301.
Wherein, in order to obtain preferably rear releasing effect, the length that attaching means 3 is discharged after described is determined according to experiment.If
Release attaching means 3 is too long afterwards, then rear releasing effect is bad, i.e., there is mount proximal end enough displacement spaces to turn down；If
Release attaching means 3 is too short afterwards, is easy to produce mount proximal end tilting, the state that can not be fitted with vascular wall.
Further, in order to ensure the binding effect of rear release attaching means 3, discharging structure after described further includes a radial direction
Limiting section, the radial direction limiting section are arranged on the conveyer.One end of part 5 is released the control after described, can passed through far
Hold interconnecting piece 301 before, can also pass through distal connection 301 after, can also pass through distal connection 301 before and
Later, it is combined with the radial limiting section, the radial direction limiting section is radially produced for limiting distal connection 301 in bracket
Raw displacement can prevent distal connection 301 mobile to bracket radial direction in this way, more effective to guarantee that mount proximal end occur
Fold.
Further, the radial limiting section includes at least two through holes, specifically by taking two through holes as an example, respectively
It is the first through hole 202 and the second through hole 203.As shown in figure 4, the one end for releasing the control part 5 after described is passing through two far
It holds and passes through second through hole 203 before interconnecting piece 301, and pass through after passing through the distal connection 301 one the
One through hole 202, it is clear that second through hole 203 is compared to the first through hole 202, closer to the distal end of the conveyer.
Herein, proximal end refers to close to one end of patient's heart, i.e., is distally one far from patient's heart far from one end of operator
End, while being also proximate to one end of operator.
In order to preferably exert a force in the axial direction of bracket 7, first through hole 202 and the second through hole 203
The axis of line and conveyer is overlapped or parallel, and the axis of the axis of conveyer and bracket 7 is on same straight line.
Further, third through hole 201 there are two being also set up on the conveyer, each third through hole 201
The other end for discharging attaching means 3 after with one is mutually fixed, thus third through hole 201 be also referred to as after discharge attaching means fixation hole,
Its mode fixed can be knotting.Preferably, it is additionally provided with a blind hole 101 on the conveyer, is released the control after described
One end of part 5 is fixed with 101 phase of blind hole.
Subsequently, the rear release structure of the present embodiment is further described in conjunction with specific conveyer.
As shown in Figures 1 to 4, a kind of conveyer includes conical head 1 and coupling tube 2, and the conical head 1 is located at coupling tube 2
Proximal end, it is described after the other end of release attaching means 3 be specifically connected with coupling tube 2, and it is described after release the control one end of part 5
It is connected with conical head 1.In aortic disease treatment, the conical head 1 is used to be arranged close to heart, is previously implanted in vivo
And play guiding function.The conical head 1 can be connect with modes such as 2 screw thread of coupling tube or snap-ons.
Optionally, the conical head 1 is equipped with a blind hole 101, and the diameter of the blind hole 101 discharges after capable of accommodating just
Control piece 5 and main body control part 6.Preferably, the depth of the blind hole 101 is 5-20mm.Part 5 and main body control are released the control by after
In the end insertion blind hole 101 of product 6, vascular tissue can be damaged outside conical head to avoid control piece is exposed.
In addition, successively having the second through hole 203, the first through hole 202 and two from its distal end to proximal end in the coupling tube 2
A third through hole 201.In addition, the coupling tube 2 is not limited to seperated molding with conical head 1, or be integrally formed.
Two third through holes 201 are selectively disposed on the wing for protruding from 2 two sides of coupling tube.This two
Third through hole 201 is preferably symmetrical arranged.First through hole 202, which is selectively disposed in, protrudes from 2 side of coupling tube
On another wing.The hollow cavity that second through hole 203 is selectively coupling tube 2 is opened to what its distal outer was arranged
Mouthful.
In turn, the conveyer further includes an inner tube 4, and said inner tube 4 is located at the distal end of coupling tube 2, and said inner tube 4
A part insertion coupling tube 2 and connect with coupling tube 2 and conical head 1.Said inner tube 4 is for allowing main body control part 6 with after
Part 5 etc. is released the control to pass through.
In order to realize the release of bracket, the conveyer further includes main body control part 6, for controlling the release of bracket 7, institute
Bracket 7 is stated by being locked after multiple constraint coils 702 binding thereon by main body control part 6, releases main body control part 6
After locking, the release of bracket can be realized.
With continued reference to Fig. 4, the wiring path of the main body control part 6 are as follows: firstly, one end of the main body control part 6 is certainly
Rack far end passes through multiple constraint coils 702 of stent outer to proximal end, with the outer diameter of tie bracket 7, then proceeds through the
One through hole 202 is inserted into conical head 1 finally by blind hole 101, so that bracket 7 be made to be collapsed in compressive state.The main body
The other end of control piece 6 is preferably fixed with external agency, after releasing the fixation with external agency, by pulling main body control part 6
The other end, the release of bracket can be realized.
Then, the wiring path for releasing the control part 5 to after in conjunction with Fig. 4 is further described.
Firstly, releasing the control the inner cavity that part 5 passes through bracket 7 from the distal end of bracket 7 to proximal end after described, transition is then penetrated
Second through hole 203 of pipe 2, and after being pierced by from the second through hole 203, sequentially pass through two distal connections 301 and one
One through hole 202 is finally inserted into conical head 1 by blind hole 101.Therefore, two distal connections 301 are limited in the second perforation
Between hole 203 and the first through hole 202.In actual use, when mount proximal end is by blood flow impact force, so that proximal end connects
Portion 701 is mobile to the distal end of bracket, since distal connection 301 is arranged in proximal end interconnecting piece 701, in proximal end interconnecting piece
Under 701 active force, distal connection 301 will be mobile to the distal end of bracket 7, until due to the limit of rear release 3 length of attaching means
System, or stopped and can not be continued to distal end movement by the second through hole 203, so that proximal end interconnecting piece 701 can not also continue
It is mobile to distal end, and then mount proximal end is mobile without normal direction distal end, has been finally reached the purpose for preventing mount proximal end from turning down.
In the present embodiment, the bracket 7 includes multiple wave bands axially connected, and each wave band is by multiple wave bar connection groups
At.The shape of each wave band, size, the bar of density and wave bar be wide, size and connection type, the present invention are not construed as limiting.Preferably
Scheme in, when discharging bracket, i.e., before releasing the control part 5 after detaching, on the preferably described bracket 7 more than three sections or three sections
Structure can be bonded with vascular wall, each section can be limited by two adjacent bands.
The specific work process of above-mentioned support system includes:
Firstly, bracket 7 is imported conveyer, bracket 7 is made to be in compressive state；Meanwhile main body control part 6 being enabled to pass through bracket
All constraint coils 702 on 7, and enable one end of main body control part 6 pass through the first through hole 202 of coupling tube 2, and be inserted into cone
It is fixed in the blind hole 101 of forming head 1；At the same time, released the control after order part 5 sequentially pass through rack bore, the second through hole 203,
Two distal connections 301, the first through hole 202, and be finally inserted in blind hole 101 fixed；
Secondly, main body control part 6 is pulled first when bracket 7 after navigating to suitable position in vivo, until mount proximal end
Three sections or the above structure of three sections are flicked and are bonded with vascular wall；Although impact force of the mount proximal end by blood flow at this time, bracket
Proximal end is still constrained by rear release attaching means 3, and no normal direction distal end is mobile, therefore will not turn down；
Later, part 5 is released the control after pulling, is released the control part 5 after and is freed with distal connection 301, at this time bracket
Proximal end is no longer by the constraint of rear release attaching means 3；
Then, continue quickly main body control part 6 to be pulled to release the control part 5 with after, flick all segments of bracket completely simultaneously
It is bonded with vascular wall；Finally, withdrawing conveyer, attaching means 3 is discharged after making and is withdrawn from vitro with conveyer.
It should be noted that release attaching means 3 includes but is not limited to the flexible bodies such as silk, rope, band after above-mentioned, discharged after described
Control piece 5 and main body control part 6 are preferably medical guiding wire, convenient for gathering materials on the spot, reduce use cost.Part is released the control after described
5 and main body control part 6 can be arranged in parallel in inner tube 4.In addition, the third through hole 201 is not limited to perforation form, it can also
To be blind hole, as long as release attaching means 3 and 2 phase of coupling tube can be fixed by after.And the third through hole 201 is not limited to
It is arranged between the first through hole 202 and the second through hole 203, sets fixation with specific reference to the length of rear release attaching means 3
The position of point.
Finally, release structure is described in detail after how above-described embodiment connects conveyer, and certainly, packet of the present invention
Connection type cited in above-mentioned implementation is included but is not limited to, it is any enterprising on the way of restraint basis provided by the above embodiment
The content of row transformation belongs to the range that the present invention is protected.Those skilled in the art can be according to the content of above-described embodiment
Draw inferences about other cases from one instance.
To sum up, in bracket provided by the invention and rear release structure, being equipped in the proximal end of bracket has through-hole at least
One proximal end interconnecting piece, and one end of rear release attaching means is provided with the distal connection with another through-hole, actually make
Used time, the other end that attaching means is discharged after described are connect with conveyer, while one end of the rear release attaching means passes through proximal end
One through-hole of interconnecting piece, then released the control by after part across described in bracket and distal connection another lead to
Hole, and make it is described after release the control one end of part and connect with conveyer, to realize the separable of mount proximal end and conveyer
Ground connection, in this way, the mount proximal end can get rid of the constraint of conveyer after only releasing the control part after detaching,
So, when discharging bracket, even if high speed blood flow impacts mount proximal end, mount proximal end will not be turned down, and then work as a part of bracket
After being bonded with vascular wall, part is released the control after can detaching, conveyer and mount proximal end are detached from this time, and mount proximal end is completely and blood
Tube wall fitting, at this time since most of bracket is all adherent, the bracket of proximal end can not be turned down.
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 bracket, which is characterized in that the proximal end of the bracket is provided at least one proximal end interconnecting piece, each proximal end
Interconnecting piece has a through-hole, one through-hole for being matched with rear release structure, with realize the bracket proximal end and
Conveyer is separably connected.
2. a kind of rear release structure for bracket as described in the appended claim 1, which is characterized in that released the control including after part,
At least one distal connection and release attaching means after at least one, each distal connection have another through-hole
And one end of the rear release attaching means is set；
The other end of release attaching means connect with the conveyer when described after, and described one end for discharging attaching means afterwards passes through
When one through-hole of the proximal end interconnecting piece, one end that part is released the control after described passes through the described of the distal connection
After another through-hole, it is connect with the conveyer；
Pull it is described after release the control the other end of part when, one end of part is released the control after described from the conveyer and described
It is extracted out in another described through-hole of distal connection, to unlock the constraint of the rear release attaching means.
3. discharging structure after as claimed in claim 2, which is characterized in that release structure further includes radial limiting section after described,
The radial direction limiting section is arranged on the conveyer, released the control after described one end of part pass through the distal connection it
It is preceding and/or later, it is also combined with the radial limiting section, the radial direction limiting section is being propped up for limiting the distal connection
The displacement of frame radially.
4. discharging structure after as claimed in claim 3, which is characterized in that the radial direction limiting section includes at least two perforations
Hole, one end that part is released the control after described pass through a through hole before passing through the distal connection, and described passing through
Another through hole is passed through after distal connection, one through hole is compared to another described through hole close to described defeated
Send the distal end of device.
5. discharging structure after as claimed in claim 2, which is characterized in that discharged after being provided at least one on the conveyer
Attaching means fixation hole, the other end and the rear release attaching means fixation hole that attaching means is discharged after described are mutually fixed.
6. discharging structure after as claimed in claim 2, which is characterized in that a blind hole is provided on the conveyer, it is described
The one end and the blind hole for releasing the control part afterwards are mutually fixed.
7. a kind of conveying device, which is characterized in that the rear release including conveyer and as described in any one of claim 2-6
Structure.
8. conveying device as claimed in claim 7, which is characterized in that the conveyer includes coupling tube and conical head, described
Conical head is located at the proximal end of the coupling tube, and radial limiting section and rear release attaching means fixation hole are provided in the coupling tube,
Blind hole is provided on the conical head；
Wherein, the radial limiting section discharges about after described for limiting the displacement of the distal connection radially in bracket
Bundle fixation hole and it is described after the other end of release attaching means mutually fix, the blind hole with it is described after release the control one end phase of part
It is fixed.
9. conveying device as claimed in claim 8, which is characterized in that the conveyer further includes main body control part, the branch
Frame is equipped with several constraint coils, if one end of the main body control part sequentially passed through from the distal end of the bracket to proximal end it is described
Dry constraint coil, and be inserted into the blind hole and fix after the radial limiting section.
10. a kind of support system, which is characterized in that including conveying device as claimed in any one of claims 7-9 and such as
Bracket described in claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710912006.XA CN109567981A (en) | 2017-09-29 | 2017-09-29 | Support system and its conveying device, rear release structure and bracket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710912006.XA CN109567981A (en) | 2017-09-29 | 2017-09-29 | Support system and its conveying device, rear release structure and bracket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109567981A true CN109567981A (en) | 2019-04-05 |
Family
ID=65919400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710912006.XA Pending CN109567981A (en) | 2017-09-29 | 2017-09-29 | Support system and its conveying device, rear release structure and bracket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109567981A (en) |
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| CB02 | Change of applicant information |
Address after: No. 3399 Lane 1, Kangxin Highway, Pudong New District, Shanghai, 201318 Applicant after: Shanghai Minimally Invasive Heart Vein Medical Technology Co., Ltd. Address before: No. 3399 Lane 1, Kangxin Highway, Pudong New District, Shanghai, 201318 Applicant before: Minimally invasive medical technology (Shanghai) Co., Ltd. |
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