CN209548050U - A kind of intracavitary patch cleaning unit of variable cutting diameter - Google Patents
A kind of intracavitary patch cleaning unit of variable cutting diameter Download PDFInfo
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- CN209548050U CN209548050U CN201821707428.XU CN201821707428U CN209548050U CN 209548050 U CN209548050 U CN 209548050U CN 201821707428 U CN201821707428 U CN 201821707428U CN 209548050 U CN209548050 U CN 209548050U
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Abstract
A kind of intracavitary patch cleaning unit of variable cutting diameter, including cleaning cutter head, patch transport assembly, cutting diameter adjust component, patch export component and central siphon transitioning component；The cleaning cutter head is equipped with the first helical conveyer vallecular cavity for transferring patch；The patch transport assembly includes rotation central siphon and transport casing；It includes adjusting sleeve pipe that the cutting diameter, which adjusts component,；The patch export component includes patch transfer cavity and patch delivery line；The central siphon transitioning component includes transition axis pipe portion and driven gear.The utility model structure is more compact and uncomplicated, operation is convenient understandable, can positive and negative Bidirectional cutting and cutting diameter it is adjustable, component tube body has excellent pushability and flexibility, cutter head cutting effect is good, high-efficient, topology layout is reasonable, intensity is high, easily assembled, cost input is lower, is worth promoting the use of in the field.
Description
Technical field
The utility model relates to the field of medical instrument technology, the intracavitary patch of specifically a kind of variable cutting diameter is cleared up single
Member.
Background technique
Vessel lumen occlusion, intracavitary serious atherosis, calcification lesion etc. are common lumen diseases, without in time treatment and
Operation will lead to serious cardio-cerebrovascular system injury, when necessary threat to life, and balloon angioplasty and bracket
Art is the common treatment tool and means of this kind of disease for the treatment of.However for serious obliteration, plaque deposits and serious
Calcification lesion, common balloon angioplasty are difficult by and extend lesion to restore normal blood flow, even if using high pressure sacculus
Extension, also easily causes the adverse consequences such as angiorrhoxis, interlayer and Vascular Restenosis after Balloom；And stenting is also difficult to for a long time
Maintaining Vasodilatory states, ISR(Restenosis) phenomenon is universal.And intracavitary rotary-cut art be seriously occlude for blood vessel, chamber
The critical treatment means of interior patch, calcification and serious gruel type.
Traditional intracavitary atherectomy catheter system activates the carbon alloy cutting tip of catheter proximal end to determine by power supply driver
To cutting patch, and patch is stored in the storage lumen of conduit head end；After blood vessel dredging, withdraws from atherectomy catheter and clear up
The patch of storage, such as in the market peripheral blood vessel orientation patch biopsy system TurboHawk of common Medtronic Inc. and
SilverHawk.This kind of atherectomy catheter system, can effective dredging vascellum, but can only one direction rotary-cut patch, and rotary-cut radius
It is fixed, effectively it cannot obtain big blood vessel flux by dredging vascellum.And the Jetstream patch rotary-cut system of Boston technology Corp
System has folded form cutting blade, clockwise blade folded when cutting, and reversely blade is unfolded when cutting, effectively expands cutting
Diameter.And this kind of patch biopsy system, system unit redundancy are complicated for operation, cutting diameter is fixed.
Furthermore in use, capture rate is low after being easy to appear patch cutting, spot for patch biopsy system in the market
Block loses distal end, distal embolization occurs；In use process, cutter tip is sharp, causes injury of blood vessel；It is led in use process
The bad phenomenons such as silk and catheter body kink；And structure is complicated for conduit system, and it is inconvenient, it is expensive etc..Therefore how to design one
Kind can overcome the more comprehensive intracavitary patch cleaning system of the function of aforementioned problems, be urgently research and solve at present it is important
Project.
Summary of the invention
The technical purpose of the utility model is to provide a kind of intracavitary patch cleaning unit of variable cutting diameter, in structure
Design is simple, easy to operate, is able to achieve positive and negative Bidirectional cutting, and can convert cutting diameter on demand, effectively captures and be sent patch,
Its specific technical solution is as follows:
A kind of intracavitary patch cleaning unit of variable cutting diameter, including cleaning cutter head, patch transport assembly, cutting diameter
Adjust component, patch export component and central siphon transitioning component；The cleaning cutter head is equipped with the first spiral for transferring patch
Transport vallecular cavity；The patch transport assembly includes the rotation central siphon for being fixedly connected on the proximal end of the cleaning cutter head and remote, proximal end
Transport casing that is fixed and being wrapped in outside the rotation central siphon, the rotation central siphon are equipped with the second spiral shell for transferring patch
Rotation transport vallecular cavity forms the patch communicated with the second helical conveyer vallecular cavity between the transport casing and the rotation central siphon
Transport channel；The cutting diameter adjusting component is wrapped in outside the cleaning cutter head and the transport casing and can be with respect to institute
It states cleaning cutter head and the transport casing does the adjusting sleeve pipe moved axially back and forth；The patch exports component
The patch transfer cavity of defeated casing connection and the patch delivery line for being connected to the patch transfer cavity, the patch transfer cavity
It is communicated with the patch transport channel；The central siphon transitioning component includes connecting and passing through in the patch with the rotation central siphon
The transition axis pipe portion for turning cavity and the driven gear in the transition axis pipe portion.
The rotation central siphon drives rotation such as transmission induced way by external force, drives the cleaning cutter head to do positive or anti-
To cutting, the patch under being cut falls into the first helical conveyer vallecular cavity, and transfers with rotation to second spiral and transport
Defeated vallecular cavity, patch just complete transport via such process in the patch transport channel, and the adjusting sleeve pipe can be via
Control also or makes entirely the cleaning cutter head and the part fortune so that the cleaning cutter head exposed portion or expose all
Defeated casing exposes, and the part for exposing the adjusting sleeve pipe is more, and the radius of gyration of the cleaning cutter head in cutting can be because of deflection
And become bigger, to realize the variable operation of cutting diameter, total composition is simple, and easy to operate, cost input is opposite
It is lower.
Preferably, the cutting diameter adjusting component further includes can turn adjusting ontology；The proximal end of the adjusting sleeve pipe
With it is described can turn adjust the distal end of ontology and connect, it is described can turn adjust the proximal end of ontology one of equipped with spiro union portion, the spiral shell
One of socket part be threadedly coupled an external connection portion, in this way design be allow described in can turn ontology pass through the threaded connection side with the external connection portion
Formula moves its own in the axial direction, so that the adjusting sleeve pipe of the connection be driven to move in the axial direction；Or
The proximal end of adjusting sleeve pipe described in person be equipped with spiro union portion three, it is described can turn adjust ontology distal end be equipped with the spiro union portion it
Three be threadedly coupled spiro union portions two, it is described can turn adjust ontology proximal end be rotatablely connected an external connection portion, in this way design be to allow
The adjusting sleeve pipe by with it is described can turn adjust the thread connecting mode of ontology, keep itself directly real in the axial direction
Now move.
Preferably, it is described can turn adjust ontology distal end be also connected with it is steady outside the adjusting sleeve pipe for being wrapped in
Determine protecting pipe.The stable protecting pipe plays a protective role to the adjusting sleeve pipe, while also playing one to the adjusting sleeve pipe
Fixed stabilization position-limiting action.
Preferably, the distal end of the transport casing is equipped with cutter head interconnecting piece, the cutter head interconnecting piece and first spiral shell
The patch introduction channel communicated with the transport channel is formed between rotation section.The cutter head interconnecting piece by the cleaning cutter head with
The transport casing is connected to a fixed, and stablizes the cleaning cutter head, and sets the transport casing stabilizer in the rotation axis
Pipe is outer.
Preferably, the cutter head interconnecting piece includes connecting the pullover of the cleaning cutter head and being used for the pullover and institute
State the cuff of transport casing connection.The pullover belt blade head connecting cavity, it is described cleaning cutter head proximal end setting interconnecting piece and with this
Connecting cavity is carried out affixed in a manner of being clamped, welding etc., and the cuff is as the pullover and the transport boot proximal end
Transition connection portion exist, improve structural strength and connective stability.
Preferably, the transport casing and/or the adjusting sleeve pipe be equipped with one or more snippets it is submissive supply area, it is described
Submissive area of supplying is equipped with hollow out lines.Due to wriggle in lumen, therefore the transport casing, the adjusting sleeve pipe sheet
The material of body needs to have higher flexibility, has specifically sought to torsion, pushability, stretch-resistance, crush resistance
Etc. performances, therefore it is further, can choose both the transport casing, the adjusting sleeve pipe or in which one of upper setting institute
It states and submissive supplies area, Lai Zengqiang flexibility, in order to such fine medical care precess.Pipe can be generally arranged in the submissive area of supplying
The distal end of body is mainly realized in the form of hollow out lines in tube surfaces.
Preferably, the hollow out lines includes curve lines and/or straight line lines.Curve lines, the straight line line of hollow out
Road makes tube body be easier to reverse, be bent, and can swimmingly advance along lumen given route.
Preferably, the hollow out lines is alternatively arranged along transport casing/adjusting sleeve pipe axial direction
For an axial unit collection, transport casing/adjusting sleeve pipe circumferential direction is equipped with multiple axial unit collection, and adjacent two
The hollow out lines of a axial unit collection is spaced apart from each other and/or interlocks.Through applicant's Development Practice, the hollow out lines
By above-mentioned regularly arranged distribution, whole flexibility can further improve.
Preferably, directly offering along its own axial direction spiral described the to extension on the rotation central siphon
Two helical conveyer vallecular cavities；Or it is connected with coiled coil section along its own axial direction on the rotation central siphon, the helical disk
The second helical conveyer vallecular cavity is formed on the rotation central siphon around section.This is two kinds of the second helical conveyer vallecular cavity and sets
Meter mode, conventional selection the latter be the mode with coiled coil section, such that the rotation central siphon can have pushability with
Preferable effect is obtained in terms of flexibility.
Preferably, the cleaning cutter head includes the multiple spirals of hollow cylinder and helical arrangement on the hollow cylinder
Cutting blade forms the first helical conveyer vallecular cavity between the adjacent spiral cutting blade；Or the cleaning cutter head packet
At least two cutter head cell cubes are included, the cutter head cell cube includes that hollow cylinder and helical arrangement are more on the hollow cylinder
A spiral cutting blade forms the first helical conveyer vallecular cavity, multiple cutter heads between the adjacent spiral cutting blade
It is coherent whole that cell cube is spliced into one.This is the monomer or fission design of the cleaning cutter head.
Preferably, the anterior angle angular range of the spiral cutting blade is 55 ~ 85 degree.
Preferably, the relief angles range of the spiral cutting blade is 0 ~ 15 degree.
Preferably, the groove angle angular range of the spiral cutting blade is 0 ~ 35 degree.
Preferably, the helix angle range of the spiral cutting blade is 25 ~ 55 degree.
Preferably, the spiral cutting blade setting quantitative range is 2 ~ 12.
The setting of aforementioned these angles be also applicant practice after study and obtain as a result, it is possible to ensure to be easy to cutting and
Do not damage lumen wall, conducive to the capture and transport of patch, make to cut progradation stablize it is smooth, it is excessive too small all to cause not
Good consequence.
Preferably, the transition axis pipe portion be a monomer central siphon, the driven gear be set to the monomer central siphon it is upper in
On section after the patch transfer cavity, the generally proximal end that the monomer central siphon is just set up directly on from institute's moving gear
Position；Or the transition axis pipe portion includes at least two sections seperated central siphons, passes through fixation between the two neighboring seperated central siphon
It connects a buffer spring and is connected integral, the driven gear is set on a seperated central siphon of more proximal end relatively.This is institute
The monomer of transition axis pipe portion and seperated two kinds of design forms are stated, it is seperated to be advantageous in that, due to rotation central siphon itself length
It is relatively large, the transition axis pipe portion is added, total is in rotation, if front end is hampered, the design of monomer is opposite to be held
Easily cause the stalling of the driving motor, and the buffer spring can play the role of buffering connection, this kind of situation is avoided to occur,
Also the fracture of the transition axis pipe portion can be avoided to a certain extent.
Preferably, the third helical conveyer vallecular cavity for transferring patch is additionally provided in the transition axis pipe portion, described
Three helical conveyer vallecular cavities are located in the patch transfer chamber body.The third helical conveyer vallecular cavity is equally played patch proximally
The effect of direction transfer, and be indirectly expressed into patch in the patch delivery line from the patch transfer cavity.
Preferably, directly being offered in the transition axis pipe portion along its own axial direction spiral to described in extension
Third helical conveyer vallecular cavity；Or it is connected with coiled coil section along its own axial direction in the transition axis pipe portion, the spiral shell
Capstan forms the third helical conveyer vallecular cavity around section in the transition axis pipe portion.This is the third helical conveyer vallecular cavity
Two kinds of implementations, since transition axis pipe portion acts outside lumen, and itself is extremely fine unlike the rotation central siphon, more
Stress production and these high aspects of simple, the at low cost, intensity of assembling, the former mode for directly opening up of conventional selection.
Preferably, being additionally provided with patch stopper in the transition axis pipe portion, the patch stopper is located at the patch
More far-end in transfer chamber body and positioned at relatively described patch transfer cavity and patch delivery line junction, the patch
Stopper is bonded with the inner wall of the patch transfer cavity.The patch stopper by the patch transfer cavity patch with
The partition of the proximal end of the patch transfer cavity, prevents patch from accumulating and overflowing in the proximal end.
Preferably, the end of the one of them in the two neighboring seperated central siphon, which is equipped with, extends pipeline section and another one
End is equipped with the cooperation inner cavity entered for the extension pipeline section grafting.The docking mode of the fission central siphon, is convenient for such Medical treatment device
The delivery and protection of the commonly used seal wire of tool improve stability and consistency of the seperated central siphon in common action.
By the unit application into a specific system, i.e., except intracavitary patch clear up unit in addition to, further include outdoor handle,
Inner handle and central siphon driving assembly；The patch export component, the central siphon transitioning component are mounted on the installation of the inner handle
In inner cavity, the inner handle is equipped with the dew for communicating the driven gear with outside and sets notch；The inner handle and the axis
Pipe driving assembly is mounted in the installation inner cavity of the outdoor handle.
Inside and outside handle installs carrier as main each component, using the central siphon driving assembly as driving power, with institute
Central siphon transitioning component is stated as running part, to drive intracavitary patch capture mechanism to act, and captured and the patch conveyed leads to
Crossing the patch, component is exported everywhere, is thus formed a complete intracavitary patch and is cleared up feeder system, compact-sized
But and it is uncomplicated, function is more perfect, and cost input is lower, easy to be understandable in operation.
Preferably, the patch export component further includes the first connecting pipe, the patch transfer cavity is arranged in institute
It states in the first connecting pipe, the driven gear is located at outside first connecting pipe.First connecting pipe is as one section
Carrier is installed, the fixed transport casing, the patch transfer cavity and the transition axis pipe portion, the patch delivery line can also
The pass-out from first connecting pipe.
Preferably, being additionally provided with the gasket for stablizing the transport casing in first connecting pipe.The gasket
Further to the transport casing limit, its stability is improved.
Preferably, the patch export component further includes the second connecting pipe, the connection of second connecting pipe side
There is patch that side pipe is discharged, the patch discharge side tube side part is connected to the patch delivery line.The second connecting pipe conduct
The initial importing pipe fitting of seal wire, and as additional patch export component guidance patch export.
Preferably, the inner handle, which is equipped with the dew for communicating the driven gear with outside, sets notch.The dew is set
Notch makes the driven gear expose and can be sequentially connected with the driving motor.
Preferably, the far-end of the inner handle is arranged in the external connection portion.The inner handle can be used as more excellent
Choosing the external connection portion setting carrier, the external connection portion is specially a threaded connection chamber, with can turn adjust ontology connect.
A kind of intracavitary patch cleaning cellular construction of variable cutting diameter described in the utility model is more compact, operates just
It is prompt understandable, it is worth promoting the use of in the field, is mainly also equipped with following advantages:
1, positive and negative Bidirectional cutting can be achieved, cutting diameter can according to need flexible modulation, suitable for different cutting shapes
Condition；
2, the tube body of component enters lumen pusher into smooth stabilization, and tube body has excellent flexibility during traveling；
3, cutter head cutting sharpness is excellent, structural strength is high, not easy damaged lumen wall, the capture and transportational process of patch
Stablize, and cutter head, in rotation progradation, propulsion is smooth, and fltting speed is stablized, and stock-removing efficiency is high；
4, overall package is simple, and each assembly layout and linking rationally, are finely easily grasped with succinct effective constitution realization
Make, it is lower in the cost input of production and installation；
5, it designs to using harmful strain between middle component to have corresponding buffering and eliminate, it is ensured that using effectively, extend
Service life.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the utility model embodiment in relation to converting cutting diameter；
Fig. 2 is the overall structure diagram of the utility model embodiment；
Fig. 3 is the partial structural diagram of the utility model embodiment handle and the central siphon driving assembly except as noted；
Fig. 4 is structural representation of the utility model embodiment in relation to the patch transport assembly and the central siphon transitioning component
Figure；
Fig. 5 is that the utility model embodiment connects in relation to the patch transport assembly, patch export component, described first
The structural schematic diagram of jointed tubular workpieces and second connecting pipe；
Fig. 6 is the structural schematic diagram that the utility model embodiment adjusts component in relation to the cutting diameter；
Fig. 7 is structural schematic diagram of the utility model embodiment in relation to the inner handle；
Fig. 8 is structural schematic diagram of the utility model embodiment in relation to the outdoor handle and the central siphon driving assembly；
Fig. 9 is structural schematic diagram of the utility model embodiment in relation to the cleaning cutter head；
Figure 10 is structural schematic diagram of the utility model embodiment in relation to the cleaning cutter head；
Figure 11 is structural schematic diagram of the utility model embodiment in relation to the cleaning cutter head；
Figure 12 is structural schematic diagram of the utility model embodiment in relation to the cleaning cutter head；
Figure 13 is structural schematic diagram of the utility model embodiment in relation to the rotation central siphon；
Figure 14 is structural schematic diagram of the utility model embodiment in relation to the rotation central siphon；
Figure 15 is structural schematic diagram of the utility model embodiment in relation to the transport casing；
Figure 16 is structural schematic diagram of the utility model embodiment in relation to the transport casing；
Figure 17 is structural schematic diagram of the utility model embodiment in relation to the adjusting sleeve pipe；
Figure 18 is structural schematic diagram of the utility model embodiment in relation to the adjusting sleeve pipe；
Corresponding each section title is numbered in figure is respectively as follows: a1- outdoor handle, a2- power supply, a3- driving motor, a4- switch,
A5- transmission gear, a6- output gear, b1-, b11- dew set notch, b12- external connection portion, and b2- rotates central siphon, and b3- transports casing,
B31- pullover, b32- cuff, b4- adjusting sleeve pipe, b41- can turn adjust ontology, b42- stablize protecting pipe, b5- hollow cylinder,
B51- spiral cutting blade, the distal end b501- cutter head, the proximal end b502- cutter head, b6- patch transfer cavity, b61- patch delivery line,
B7- driven gear, b8- transition axis pipe portion, b81- buffer spring, b82- patch stopper, b83- extend pipeline section, b84- cooperation in
Side pipe is discharged in chamber, the first connecting pipe of b9-, b91- gasket, the second connecting pipe of b10-, b101- patch.
Specific embodiment
Below in conjunction with attached drawing, by specific embodiment, the utility model is described in further detail:
See Fig. 1 ~ 8, a kind of intracavitary patch cleaning feeder system of variable cutting diameter, including can be changed the intracavitary of cutting diameter
Patch capture mechanism, further includes outdoor handle a1, inner handle b1, patch export component, central siphon transitioning component and central siphon driving assembly,
Intracavitary patch capture mechanism, patch export component and central siphon transitioning component collectively constitute the intracavitary patch cleaning of variable cutting diameter
Unit.The intracavitary patch capture mechanism of variable cutting diameter includes cleaning cutter head, patch transport assembly and cutting diameter adjusting group
Part.Patch export component includes and transports the patch transfer cavity b6 and the spot for being connected to patch transfer cavity b6 that casing b3 is connect
Block delivery line b61, patch transfer cavity b6 are communicated with patch transport channel, and the setting of patch transport channel is worked as in patch transport assembly
In, specific descriptions are had in content below；Central siphon transitioning component includes connecting with rotation central siphon b2 and passing through patch transfer chamber
The transition axis pipe portion b8 of the body b6 and driven gear b7 on transition axis pipe portion b8.Central siphon driving assembly includes power supply a2 and company
It is connected to the driving motor a3 of power supply a2, driving motor a3 and driven gear b7 transmission connection, switch a4 is also shown in Fig. 8, is passed
The transmission gear a5 of the output gear a6 and driven gear b7 of dynamic connection driving motor a3.Patch exports component, central siphon transition group
Part is mounted in the installation inner cavity of inner handle b1, and inner handle b1 is equipped with the dew for communicating driven gear b7 with outside and sets notch
B11, inner handle b1 and central siphon driving assembly are mounted in the installation inner cavity of outdoor handle a1.
See Fig. 9 ~ 12, cleaning cutter head is equipped with the first helical conveyer vallecular cavity for transferring patch.Clear up the setting of cutter head
Mode can be single or multiple: cleaning cutter head includes that the multiple spirals of hollow cylinder b5 and helical arrangement on hollow cylinder b5 are cut
It is 3 in sharpener sword b51(diagram), the first helical conveyer vallecular cavity is formed between adjoining spiral cutting blade b51；Or cleaning knife
Head includes at least two cutter head cell cubes (being 2 in diagram), and cutter head cell cube includes hollow cylinder b5 and helical arrangement in
It is 3 in multiple spiral cutting blade b51(diagram on void column body b5), first is formed between adjoining spiral cutting blade b51
Helical conveyer vallecular cavity, multiple cutter head cell cubes are spliced into a coaxial concentric entirety, and welding may be selected in connecting method.Fig. 9 ~ Figure 12
Shown in be split type segment design, the entire material for clearing up cutter head can choose the higher cochrome of hardness, diamond
Or 440C stainless steel etc., and in order to keep the sharpness of cutter head, it can be in the outer surface addition such as DLC coating of entirely cleaning cutter head
Deng coat.It is noted that the multiple cutting sections in front and back, each cutting can be divided on hollow cylinder b5 in the axial direction
Section is equipped with multiple spiral cutting blade b51, generally the spiral cutting blade b51 on the cutting section of proximal end
Quantity is also provided with more, and setting in this way can guarantee opposite proximal end cutting section to the capture effect of patch, and in opposite proximal end
Patch is further shredded in order to transport on cutting section.That is the cleaning cutter head of monomer-type, may include multiple
Section is cut, the spiral cutting blade b51 quantity of each cutting section can arbitrarily be set, such as by distal end to proximal end blade number
It measures identical or gradually becomes mostly etc.；And split type cleaning cutter head, it can be set on the hollow cylinder b5 of each cutter head cell cube
It sets foregoing cutting section, then can also set spiral using single cutter head cell cube as one whole section of cutting section
The quantity of cutting blade b51.Just because of the design of cutting section, considers further that the difficulty of production, assembling, and itself is more
The structural strength of fine entire cleaning cutter head, split type segment design are the mode of more worth selection relative to monomer-type.
It is split type segment design shown in attached drawing, and selects entire cutter head cell cube for a cutting section, each cutting section
On spiral cutting blade b51 quantity is identical and the smooth docking in front and back.
Cutter head cell cube in Fig. 9, Figure 10, Figure 11 can be described as distal end cutter head b501, and the cutter head cell cube in Figure 12 can claim
For proximal end cutter head b502, all have and be mutually connected corresponding 3 spiral cutting blade b51 and 3 the first helical conveyer vallecular cavities, manages
Can there are thickness and system any number of, but that consider the hardness of patch in lumen, spiral cutting blade by upper both of which
Make limitation of the technique in terms of these, the setting quantitative range of spiral cutting blade b51 and corresponding first helical conveyer vallecular cavity is 2
~ 12.Two cutter head cell cubes stand tightly against the cut piece being pre-designed by the oval blank with middle axocoel is designed, and revolve
Then it empties and obtains a vallecular cavity.Cut piece is divided into A and B two parts, reference shape Figure 10.And influence the pass of cutter head stock-removing efficiency
Key factor is the helical angle δ in anterior angle α, rear angle beta, groove angle γ and axial direction.
Those of skill in the art can know in the art for the definition of anterior angle α, indicated in Figure 10 signal for
Understand, in conjunction with the cutter head cross section of Figure 10, it is popular for i.e. from the central point in the section to the section upper knife edge most distal point
Angle between the tangent line c2 of the inner circle of radial line c1 and blade, the anterior angle α angular range of spiral cutting blade b51 is 55 ~
85 degree.Applicant practices after study, and when anterior angle α angle is less than 55 degree, spiral cutting blade b51 is excessively sharp and has and attack
Hitting property, and structural fragile, when cutting, are also easy to damage lumen wall；When anterior angle α angle is greater than 85 degree, the stock-removing efficiency of blade
Can be extremely low, benchmark requirement is not achieved, therefore the segment limit is particularly suited for use in the angular range of an anterior angle α of this programme.
Equally those of skill in the art can know in the art for the definition of angle beta afterwards, and signal is indicated in Figure 10
For understand, in conjunction with the cutter head cross section of Figure 10, it is popular for i.e. the section upper knife edge it is practical form after most distal point tangent line
C3 and blade on original cylindrical blank angle between the tangent line c4 of attainable most distal point, spiral cutting blade
The rear angle beta angular range of b51 be 0 ~ 15 degree (because of after blade practical molding its most distal point be on original blank bus,
It being namely on the dotted line of the outmost turns in figure, rear angle beta angle is 0 degree, if further compressing blade to cutter head center,
Angle beta angle will change afterwards).Applicant practices after study, when rear angle beta angle be greater than 15 degree when, spiral cutting blade b51 with
Pullover b31, in other words with cutter head interconnecting piece, harmful gap between the distal end of transport casing b3 can obviously become larger in other words,
This is unfavorable for the capture and transport of patch after cutting, thus the segment limit be particularly suited for use in one of this programme after angle beta angle
Range.
Equally those of skill in the art can know in the art for the definition of groove angle γ, and signal is indicated in Figure 10
For understanding, in conjunction with the cutter head cross section of Figure 10, it is popular for the i.e. inner circle of the section upper knife edge tangent line c2 and blade it is practical
Angle after molding between the tangent line c3 of most distal point, the groove angle angular range of spiral cutting blade b51 are 0 ~ 35 degree, this shows
The thickness of the sharp mouth of cutting of spiral cutting blade b51, actually can be according to formula: groove angle γ=90- anterior angle α-rear angle beta come
To its angular range, therefore the determination of anterior angle α and rear angle beta, but also groove angle γ is accordingly determined.
Equally those of skill in the art can know in the art for the definition of helical angle δ, can refer to Figure 11, popular
For the tangent line c6 of the helix and central axis c5(of cutter head formed by blade can also be not understood as leading in a broad sense i.e. in figure
Cross the straight edge line at the former point of contact) between angle, the helix angle range of spiral cutting blade b51 is 25 ~ 55 degree.Helical angle
The size of δ has been largely fixed the propulsive efficiency on cutter head cell cube axial direction.Applicant practices after study, works as spiral shell
When swing angle δ angle is less than 25 degree, Caton phenomenon easily occurs in progradation for cutter head, and then causes after cutting and promoting stall
Consequence；When helical angle δ angle is greater than 55 degree, cutter head propulsion can become very slowly, and stock-removing efficiency is seriously low, therefore the Duan Fan
Enclose the angular range for being particularly suited for use in a helical angle δ of this programme.
In Figure 12, the proximal cross-section of distal end cutter head b501 and the distal sections of proximal end cutter head b502 match, and can carry out nothing
It is aligned smooth linking before and after seam welding, the spiral cutting blade b51 of the two and the first helical conveyer vallecular cavity, so distal end cutter head
The size of the anterior angle of b501 and proximal end cutter head b502, relief angle and groove angle is consistent.The structure of proximal end cutter head b502 in Figure 12
On have further signal, due to there is the structure of hollow cylinder b5, (needs of admittance silk, the component of admittance silk are all tubulose knots
Structure), the hollow cylinder b5 of proximal end cutter head b502 further includes the docking hollow cylinder of one section of extension when docking, and distal end cutter head
Also there is corresponding matched butt cavity in b501, be further ensured that overall structural strength, stability and consistency after the two docking；And
And be additionally provided on the cutter head b502 of proximal end for cutter head interconnecting piece, that is, pullover b31 clamping positioning step block, pullover b31
Inside also has corresponding snap openings and is coupled, this is to connect and fix mode in addition to optional be welded and fixed.Certainly in practice
Due to the factor of production either connection structure, the size of the anterior angle of proximal end cutter head b502, relief angle and groove angle can also exist certain
The deviation of range, 0 ~ 5 degree common of error belong to normal range (NR).
See that Figure 13, Figure 14, rotation central siphon b2 are a kind of three layers of spiral metal wire woven tubes, interior two layers all by N root bilayer spiral shell
Rotation wire uniform winding forms, and the range of screw pitch is 0.2-10mm.The vertical range of N is 3 ~ 18, when N is less than 3, rotation axis
The flexibility of pipe b2 is unqualified；When N is greater than 18, weaving is complicated, and cost is higher by very much；The range of the diameter of wire is
0.01-0.5mm, theoretically by calculating, we select the braiding circle silk of suitable dimension according to different service conditions.Outermost layer is
Thermoplastic pipe hot compress and seal pipe face are to prevent blood in guidewire lumen road excessive.The implementation of second helical conveyer vallecular cavity can
Are as follows: the second helical conveyer vallecular cavity along its own axial direction spiral to extension is directly offered on rotation central siphon b2；Or
It is connected with coiled coil section b21 along its own axial direction on rotation central siphon b2, coiled coil section b21 can be single spiral
Wire, the coiled coil section b21 form the second helical conveyer vallecular cavity on rotation central siphon b2.The chamber of second helical conveyer vallecular cavity
Body width can select on demand within the scope of 0.2 ~ 10mm, be latter implementation shown in Fig. 4, because of rotation central siphon b2
It is to advance and act in lumen, and also because its ontology is originally fine, then directly opens up the second helical conveyer vallecular cavity on it
If, cannot take into account required flexibility, pushability and intensity, therefore although production, assembling and in terms of have
It is paid, but the mode of additional spiral coiling section b21 is undoubtedly relatively more preferred mode, guarantees rotation central siphon by better
Flexibility, pushability and structural strength.
The distal end for transporting casing b3 is equipped with cutter head interconnecting piece, is formed and is transported between cutter head interconnecting piece and the first helical segments
The patch introduction channel that channel communicates.Cutter head interconnecting piece includes the pullover b31 of connection cleaning cutter head and is used for pullover b31 and fortune
The cuff b32 of defeated casing b3 connection.It transports inside and outside casing b3 points two layers, internal layer is hollow out metal tube, and outer layer is to seal
Thermoplasticity tube body.
Transport casing b3 be equipped with one or more snippets it is submissive supply area, submissive area of supplying is equipped with hollow out lines.Hollow out line
Road includes curve lines and/or straight line lines.Hollow out lines is alternatively arranged axial single for one along the axial direction of transport casing
Metaset, the circumferential direction for transporting casing are equipped with multiple axial unit collection, and the hollow out lines of two neighboring axial unit collection is mutual
It is spaced and/or interlocks.With specific reference to Figure 15, Figure 16, internal layer hollow out metal tube distal end is passed through at laser cutting or chemical etching
Reason, the lines and its size for cutting or etching, arrangement determine the submissive performance of transport casing b3, further spread out supplement solution
Release the performances such as i.e. torsion, pushability, stretch-resistance, crush resistance.Hollow out lines is preferably duplicate multiple S-shaped lines and more
A bar shaped lines, an axial unit concentration includes the S-shaped lines or bar shaped lines being intervally arranged, naturally it is also possible to be mixed
It closes, what is provided in diagram is S-shaped lines axial unit collection and bar shaped lines axial unit collection.In diagram, the one of bar shaped lines
The trough against S-shaped lines is held, this is a kind of preferred embodiment for obtaining biggish flexibility as far as possible, naturally it is also possible to strip pattern
Road a single row, the interval setting of S-shaped lines a single row, can also be not necessarily intended to the trough against S-shaped lines but accomplish
It is staggered, this also determines the complexity of manufacture craft.The lines spacing distance that each axial unit is concentrated is L,
Further each axial unit is concentrated from distal end during proximal end, and the value of L is (uniform gradual change or the unevenness being gradually increased
Even gradual change), the value range of L is 0.01 ~ 0.25mm, and the flexibility of such distal end can be greater than the flexibility of proximal end, in addition
The demand accounting of proximal end pushability be also it is increasing, the pushability of proximal end also can be preferable if being arranged in this way, whole upper tube
The flexibility of body and push performance are balanced, and structural strength is higher, this is also that applicant practices found after study.In
In other modified examples, it is selected that the size of hollow out lines itself, which can choose a variety of value mixing arrangements or the value of L,
The more value of balance quality.In diagram, the upper distal portions of transport casing b3 supply area provided with one end is submissive, and its proximal part
The tube body for not doing hollow processing but script, both guarantees integral strength and pushability in this way, but also with enough flexibility.Supplement
A bit, adjusting sleeve pipe b4 can also make it is similar it is aforementioned these in relation to the submissive setting for supplying area.
See Fig. 1, Fig. 2, Fig. 3 and Fig. 6, cutting diameter adjust component be wrapped in cleaning cutter head and transport casing b3 outside and
The adjusting sleeve pipe b4 moved axially back and forth can be relative to cleaning cutter head and transport casing b3.Referring again to Figure 17 and Figure 18, adjusting set
Pipe b4 is three layers of woven tube structure, and ectonexine is high molecular material, such as nylon, pebax, PI, PTFE or PEEK；Centre is
Metal knitted silk, such as 304V, 304LVM, Nitinol class, count range are the friendship of 60-150PPI(per inch braided wires
Knit number of contacts).This count range is also this programme to be adapted to by applicant and research practice, count are lower than
When 60PPI, adjusting sleeve pipe b4 ontology is partially soft, and meeting when cutter head is cut, adjusting sleeve pipe b4 is weak to the limitation capability of cutter head, causes to go out
Existing excessive cutting diameter, is easy to damage blood vessel；And when count is greater than 150PPI, the flexibility of adjusting sleeve pipe b4 adapts to again
The not bending radius of complicated blood vessel official jargon promotes difficult, low efficiency, is similarly easy to damage blood vessel.
Realize that the mode of adjusting sleeve pipe b4 moved axially back and forth can are as follows: cutting diameter adjusting component further includes can turn tune
Abridged edition body b41；The proximal end of adjusting sleeve pipe b4 with can turn adjust ontology b41 distal end connect, can turn adjusting ontology b41 it is close
End is equipped with one of spiro union portion, and one of spiro union portion is threadedly coupled an external connection portion b12；Or the proximal end of adjusting sleeve pipe b4 is equipped with spiro union portion
Three, can turn adjust the distal end of ontology b41 and be equipped with the two of spiro union portion is threadedly coupled with the three of spiro union portion, can turn adjust
The proximal end of body b41 is rotatablely connected an external connection portion b12.External connection portion b12 is arranged at the distal end of inner handle b1 at mentioned herein two
Place.Former mode be by can turn adjust ontology b41 and external connection portion b12 be spirally connected, with can turn adjusting itself phase of ontology b41
For external connection portion b12 movement and drive adjusting sleeve pipe b4；Latter approach be by can turn adjust ontology b41 and adjusting set
Pipe b4 is spirally connected, and turn can directly be such that adjusting sleeve pipe b4 moves axially after turn adjusting ontology b41.See Fig. 7, it is outer on inner handle b1
Socket part b12 is threaded connection hole, therefore shows former mode.
Can turn adjust ontology b41 distal end be also connected with the stabilization protecting pipe b42 for being wrapped in outside adjusting sleeve pipe b4,
Stable protecting pipe b42 eliminates harmful strain of its proximal end while cladding protects adjusting sleeve pipe b4, so that its component entirety exists
It is more stable when use.
Referring again to Fig. 4, Fig. 5, patch export component further includes the first connecting pipe b9, and patch transfer cavity b6 setting is the
In one connecting pipe b9, driven gear b7 is located at outside the first connecting pipe b9.It is additionally provided in first connecting pipe b9 for stablizing
Transport the gasket b91 of casing b3.Patch export component further includes the second connecting pipe b10, the connection of the second side connecting pipe b10
There is patch that side pipe b101 is discharged, the patch discharge side side pipe b101 is connected to patch delivery line b61.First connecting tube b9 is as spot
The installation carrier of block transfer cavity b6, transport casing b3 are also passed into wherein and are fixed by it, and transition axis pipe portion b8 is by patch transfer
It pass-out and pass-out and is fixed from the first connecting tube b9 again in cavity b6, patch delivery line b61 is also by the first connecting tube b9
Pass-out, entire first connecting tube b9 exist as an integration vector to members, and the layout as whole system needs
It wants, same second connecting pipe b10 is also in this way, it helps the proximal end transition axis pipe portion b8 to fix, and further assists patch
Patch is sent out by delivery line b61, these important component integrations are packed and fixed by the two connecting pipes, and are reloaded into interior hand
In handle b1, the setting of driven gear b7 is served at the interval between two connecting pipes, and inner handle b1, which is equipped with, makes driven gear
B7 sets notch b11 with the dew that communicates of outside, is sequentially connected for driven gear b7 and driving motor a3, final entire inner handle b1 and
Its internal component is integrated again in insertion outdoor handle a1, and a complete, beautiful cleaning feeder system is formed.
Transition axis pipe portion b8 can be monomer or separate form, it may be assumed that transition axis pipe portion b8 is a monomer central siphon, driven gear b7
On the upper section after patch transfer cavity b6 of the monomer central siphon, generally transition axis is just arranged in driven gear b7
On the proximal part of pipe portion b8, it is also in spot certainly that transition axis pipe portion b8, which is across patch transfer cavity b6, driven gear b7,
Outside block transfer cavity b6, and the proximal end of transition axis pipe portion b8 is just directly connect with the distal end of the second connecting tube b10；Or
Transition axis pipe portion b8 includes at least two sections seperated central siphons, by being fixedly connected with a buffer spring between two neighboring fission central siphon
B81 and be connected integral, driven gear b7 is set on a seperated central siphon of more proximal end relatively.As shown in Figure 4, transition central siphon
Portion b8 is two sections of seperated central siphons, and the end of the one of them in two seperated central siphons is equipped with the end for extending pipeline section b83 and another one
Portion is equipped with the cooperation inner cavity b84 entered for extending pipeline section b83 grafting.Showed in diagram, and relatively preferred mode, i.e.,
The setting of seperated central siphon.Because rotation central siphon b2 itself, whole section of tube body of transition axis pipe portion b8 composition are just longer, once distal end,
Such as cleaning cutter head at encounter obstinate patch and it is interrupted when, when whole section of tube body be members are relatively rigid monomer central siphon when, just
Will affect torque transmission, cause drive part i.e. motor stall the phenomenon that, this is extremely disadvantageous, so selection is seperated plus buffering
The design of spring b81 avoids the generation of the big stall event of horse so that there is a breeze way in torque transmission process, can also help
In the smooth continuity of torsion, avoid generating moment biggish internal stress.
The third helical conveyer vallecular cavity for transferring patch, third helical conveyer vallecular cavity position are additionally provided on transition axis pipe portion b8
In in patch transfer cavity b6.Likewise, also there are two types of implementations for third helical conveyer vallecular cavity, it may be assumed that on transition axis pipe portion b8
Directly offer the third helical conveyer vallecular cavity along its own axial direction spiral to extension；Or edge on transition axis pipe portion b8
Its own axial direction be connected with coiled coil section, which forms third helical conveyer on transition axis pipe portion b8
Vallecular cavity.It is former implementation shown in Fig. 4, i.e., is directly a thread segment, since transition axis pipeline section b8 is moved outside lumen
The effects of making, and itself is used as changeover portion, playing connection, torque transmission, patch transfer transport, ontology will not be as rotation axis
Pipe is fine like that, therefore can go to consider from the angle of production, assembling, cost input, directly opens up thread segment i.e. and can guarantee its knot
The stabilization of structure and function.
Be additionally provided with patch stopper b82 on transition axis pipe portion b8, patch stopper b82 be located in patch transfer cavity b6 and
Positioned at the more far-end of opposite patch transfer cavity b6 and the junction patch delivery line b61, patch stopper b82 and patch transfer
The inner wall of cavity b6 is bonded.Patch stopper b82 can be rotated with respect to patch transfer cavity b6, can increase lubricant layer on it,
Can still follow the smooth rotation of transition axis pipe portion b8 while guaranteeing that it supports patch with the sealing of patch transfer cavity b6 inner wall.Patch resistance
The patch that block b82 carrys out conveying stops, and prevents it from may be overflowed by the end in the accumulation of the proximal end of patch transfer cavity b6,
Its schematic construction can be intuitive to see in Fig. 4.
Whole device when in use, from the second connecting pipe b10 be passed through seal wire, be through to cleaning cutter head at and by
Its distal end pass-out, guidance groundwork pipeline section enter in target lumen, and startup power supply a2 drives cleaning cutter head to patch in lumen
It is cleared up.In scale removal process, can real-time transform cutting diameter, illustrate in conjunction with attached drawing 1, stir counterclockwise can turn adjust
Ontology b41 drives adjusting sleeve pipe b4 to move to the near end, so that soft transport casing b3 distal portions are gradually exposed in adjusting set
Outside pipe b4, and cutter head is cleared up at this time since the transport casing b3 distal portions connected are exposed, one can occur in rotary course
Quantitative deflection cutting, it will be appreciated that the phenomenon that for similar cutter head whipping, deflection diameter is R1；And ought stir clockwise can turn
When adjusting ontology b41, adjusting sleeve pipe b4 be driven it is mobile to distal end, it is general it is farthest only can direct reach the position cuff b32 and only will be clear
It is exposed outside adjusting sleeve pipe b4 to manage cutter head, members are relatively rigid adjusting sleeve pipe b4 will transport the distal end casing b3 and coat, at this time clearly
The diameter that reason cutter head does orientation cutting is R2, straight outside the cleaning cutter head of 1 ~ 1.5 times of the value normal control position of R2 according to magnitude determinations
Diameter (can be regarded as the diameter of original cylinder blank in figure in conjunction with Figure 10).It follows that the cutting diameter of R2 actually standard,
The smallest cutting diameter, and R1 is greater than R2's, the value of R1 be as the transport distal end casing b3 exposed part length becomes larger and
Become larger, that is to say by stir can turn adjust ontology b41 and carry out the final transformation for realizing cutting diameter, such mode can be big
Amplitude improves the cutting diameter of cutting system, expands cut coverage.
Claims (20)
1. a kind of intracavitary patch of variable cutting diameter clears up unit, it is characterised in that: including clearing up cutter head, patch transport group
Part, cutting diameter adjust component, patch export component and central siphon transitioning component；
The cleaning cutter head is equipped with the first helical conveyer vallecular cavity for transferring patch；
The patch transport assembly include be fixedly connected on it is described cleaning cutter head proximal end rotation central siphon (b2) and far, proximal end it is equal
It fixes and is wrapped in the transport casing (b3) of rotation central siphon (b2) outside, the rotation central siphon (b2) is equipped with for transferring spot
Second helical conveyer vallecular cavity of block is formed and second spiral between the transport casing (b3) and the rotation central siphon (b2)
The patch transport channel that transport vallecular cavity communicates；
The cutting diameter adjusting component is wrapped in the cleaning cutter head and the transport casing (b3) outside and can be with respect to institute
It states cleaning cutter head and transport casing (b3) does the adjusting sleeve pipe (b4) moved axially back and forth；
The patch export component includes the patch transfer cavity (b6) connecting with transport casing (b3) and is connected to described
The patch delivery line (b61) of patch transfer cavity (b6), the patch transfer cavity (b6) communicate with the patch transport channel；
The central siphon transitioning component includes connecting with rotation central siphon (b2) and passing through the mistake of the patch transfer cavity (b6)
The driven gear (b7) for crossing central siphon portion (b8) and being set on the transition axis pipe portion (b8).
2. a kind of intracavitary patch of variable cutting diameter according to claim 1 clears up unit, it is characterised in that: described to cut
Cut diameter adjustment component further include can turn adjust ontology (b41)；The proximal end of the adjusting sleeve pipe (b4) and it is described can turn tune
The distal end of abridged edition body (b41) connects, it is described can turn adjust the proximal end of ontology (b41) and be equipped with one of spiro union portion, the spiro union portion
One of be threadedly coupled an external connection portion (b12)；
Or the proximal end of the adjusting sleeve pipe (b4) be equipped with spiro union portion three, it is described can turn adjust ontology (b41) distal end set
Have the two of the spiro union portion being threadedly coupled with the three of the spiro union portion, it is described can turn adjust the proximal end rotation connection of ontology (b41)
One external connection portion (b12).
3. the intracavitary patch of variable cutting diameter according to claim 2 a kind of clears up unit, it is characterised in that: it is described can
The distal end that turn adjusts ontology (b41) is also connected with for being wrapped in the stabilization protecting pipe (b42) of the adjusting sleeve pipe (b4) outside.
4. a kind of intracavitary patch of variable cutting diameter according to claim 1 clears up unit, it is characterised in that: the fortune
The distal end of defeated casing (b3) be equipped with cutter head interconnecting piece, between the cutter head interconnecting piece and first helical segments formed with it is described
The patch introduction channel that transport channel communicates.
5. a kind of intracavitary patch of variable cutting diameter according to claim 4 clears up unit, it is characterised in that: the knife
Head interconnecting piece includes connecting the pullover (b31) of the cleaning cutter head and being used for the pullover (b31) and the transport casing
(b3) cuff (b32) connected.
6. a kind of intracavitary patch of variable cutting diameter according to claim 1 clears up unit, it is characterised in that: the fortune
Defeated casing (b3) and/or the adjusting sleeve pipe (b4) be equipped with one or more snippets it is submissive supply area, it is described submissive to supply Qu Shangshe
There is hollow out lines.
7. a kind of intracavitary patch of variable cutting diameter according to claim 6 clears up unit, it is characterised in that: described to engrave
Empty lines includes curve lines and/or straight line lines.
8. a kind of intracavitary patch of variable cutting diameter according to claim 6 clears up unit, it is characterised in that: described to engrave
Empty lines is alternatively arranged along the axial direction of transport casing (b3)/adjusting sleeve pipe (b4) as an axial unit collection,
The circumferential direction of transport casing (b3)/adjusting sleeve pipe (b4) is equipped with multiple axial unit collection, two neighboring described
The hollow out lines of axial unit collection is spaced apart from each other and/or interlocks.
9. a kind of intracavitary patch of variable cutting diameter according to claim 1 clears up unit, it is characterised in that: described turn
The second helical conveyer vallecular cavity along its own axial direction spiral to extension is directly offered on moving axis pipe (b2)；Or
It is connected with coiled coil section along its own axial direction on the rotation central siphon (b2), the coiled coil section is in the rotation axis
The second helical conveyer vallecular cavity is formed on pipe (b2).
10. a kind of intracavitary patch of variable cutting diameter according to claim 1 clears up unit, it is characterised in that: described
Clearing up cutter head includes the multiple spiral cutting blades of hollow cylinder (b5) and helical arrangement on the hollow cylinder (b5)
(b51), the first helical conveyer vallecular cavity is formed between the adjacent spiral cutting blade (b51)；
Or the cleaning cutter head includes at least two cutter head cell cubes, the cutter head cell cube includes hollow cylinder (b5) and spiral shell
Revolve multiple spiral cutting blades (b51) for being arranged on the hollow cylinder (b5), the adjacent spiral cutting blade (b51) it
Between form the first helical conveyer vallecular cavity, multiple cutter head cell cubes splicings are integral.
11. a kind of intracavitary patch of variable cutting diameter according to claim 10 clears up unit, it is characterised in that: described
The anterior angle angular range of spiral cutting blade (b51) is 55 ~ 85 degree.
12. a kind of intracavitary patch of variable cutting diameter according to claim 10 clears up unit, it is characterised in that: described
The relief angles range of spiral cutting blade (b51) is 0 ~ 15 degree.
13. a kind of intracavitary patch of variable cutting diameter according to claim 10 clears up unit, it is characterised in that: described
The groove angle angular range of spiral cutting blade (b51) is 0 ~ 35 degree.
14. a kind of intracavitary patch of variable cutting diameter according to claim 10 clears up unit, it is characterised in that: described
The helix angle range of spiral cutting blade (b51) is 25 ~ 55 degree.
15. a kind of intracavitary patch of variable cutting diameter according to claim 10 clears up unit, it is characterised in that: described
It is 2 ~ 12 that quantitative range, which is arranged, in spiral cutting blade (b51).
16. a kind of intracavitary patch of variable cutting diameter according to claim 1 clears up unit, it is characterised in that: described
Transition axis pipe portion (b8) is a monomer central siphon, and it is upper in the patch transfer chamber that the driven gear (b7) is set to the monomer central siphon
On section after body (b6)；
Or the transition axis pipe portion (b8) includes at least two sections seperated central siphons, by solid between the two neighboring seperated central siphon
Surely it connects a buffer spring (b81) and is connected integral, the driven gear (b7) is set to a seperated axis of more proximal end relatively
Guan Shang.
17. a kind of intracavitary patch of variable cutting diameter according to claim 1 clears up unit, it is characterised in that: described
The third helical conveyer vallecular cavity for transferring patch is additionally provided in transition axis pipe portion (b8), the third helical conveyer vallecular cavity is located at
In the patch transfer cavity (b6).
18. a kind of intracavitary patch of variable cutting diameter according to claim 17 clears up unit, it is characterised in that: described
The third helical conveyer vallecular cavity along its own axial direction spiral to extension is directly offered in transition axis pipe portion (b8)；
Or it is connected with coiled coil section along its own axial direction on the transition axis pipe portion (b8), the coiled coil section is described
The third helical conveyer vallecular cavity is formed in transition axis pipe portion (b8).
19. a kind of intracavitary patch of variable cutting diameter according to claim 1 clears up unit, it is characterised in that: described
It is additionally provided in transition axis pipe portion (b8) patch stopper (b82), the patch stopper (b82) is located at the patch transfer cavity
(b6) the more far-end in and positioned at the relatively described patch transfer cavity (b6) and patch delivery line (b61) junction, institute
Patch stopper (b82) is stated to be bonded with the inner wall of the patch transfer cavity (b6).
20. a kind of intracavitary patch of variable cutting diameter according to claim 16 clears up unit, it is characterised in that: adjacent
The end of one of them in two seperated central siphons is equipped with extension pipeline section (b83) and the end of another one is equipped with described in confession and prolongs
The cooperation inner cavity (b84) that long pipeline section (b83) grafting enters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821707428.XU CN209548050U (en) | 2018-10-22 | 2018-10-22 | A kind of intracavitary patch cleaning unit of variable cutting diameter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821707428.XU CN209548050U (en) | 2018-10-22 | 2018-10-22 | A kind of intracavitary patch cleaning unit of variable cutting diameter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209548050U true CN209548050U (en) | 2019-10-29 |
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ID=68298183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821707428.XU Withdrawn - After Issue CN209548050U (en) | 2018-10-22 | 2018-10-22 | A kind of intracavitary patch cleaning unit of variable cutting diameter |
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| Country | Link |
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| CN (1) | CN209548050U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109717925A (en) * | 2018-10-22 | 2019-05-07 | 杭州巴泰医疗器械有限公司 | A kind of intracavitary patch cleaning unit of variable cutting diameter |
-
2018
- 2018-10-22 CN CN201821707428.XU patent/CN209548050U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109717925A (en) * | 2018-10-22 | 2019-05-07 | 杭州巴泰医疗器械有限公司 | A kind of intracavitary patch cleaning unit of variable cutting diameter |
| CN109717925B (en) * | 2018-10-22 | 2024-07-05 | 杭州巴泰医疗器械有限公司 | Variable cutting diameter's plaque cleaning unit in chamber |
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