CN205548597U - Medical operation passageway support - Google Patents
Medical operation passageway support Download PDFInfo
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- CN205548597U CN205548597U CN201620207561.3U CN201620207561U CN205548597U CN 205548597 U CN205548597 U CN 205548597U CN 201620207561 U CN201620207561 U CN 201620207561U CN 205548597 U CN205548597 U CN 205548597U
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- expandable stent
- connecting portion
- walk way
- operating walk
- medical operating
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Abstract
The embodiment of the utility model discloses medical operation passageway support, include: but the expansion support frame who has a memory function with be used for with the retracted film of people's physical contact, the retracted film cladding in but expansion support frame is last, wherein, it is cylindric that but expansion support frame's both ends connect into through engaged with connecting device, connecting device includes fixed connector, first connecting portion and second connecting portion, first connecting portion with the second connecting portion connect in turn in but keep away from at expansion support frame's both ends the retracted film first connecting portion one side sets up to the wedge face, the second connecting portion are provided with the round hole, the fixed connector through connection each the round hole. The disclosed passageway support of this embodiment is when putting into or extract the human body, because the pipe diameter is adjustable, has avoided causing operating difficulties and the painful problem of patient.
Description
Technical field
This utility model relates to technical field of medical instruments, particularly relates to a kind of medical operating walk way support.
Background technology
The advantages such as minimally-invasive treatment is widely used clinically, and it is little that it has damage, and post-operative recovery is fast.And in minimally-invasive treatment mistake
Journey often need to set up operating walk way or the physiology expanding natural tract or pathologic stenosis by various medical apparatus and instruments, then pass through
The tracts such as the passage set up carry out minimally-invasive treatment.
At present, the clinical conventional method setting up operating walk way mainly has following two: a kind of for initially with puncture needle etc.
Apparatus punctures, further along puncture needle place different tube diameters fixing sheath pipe gradually expand, to be expanded to required greatly
After little, then operated, such as percutaneous renal puncture etc. by sheath pipe internal passage.Another kind of normal for the expansion of natural tract
Use method be first along tract insert a thin seal wire as guide thing, insert fixing caliber further along this root seal wire
Sheath pipe or the apparatus such as expandable stent, exit seal wire, passage has built, such as Ureteroscopy, intravascular stent etc..
But in Clinical practice, above method all has many deficiencies: uses fixing sheath pipe progressively to expand and not only operates
Numerous and diverse, and putting pipe, tube drawing process mesotheca pipe and puncture orifice surrounding tissue direct friction, cause bigger misery to patient；
During using fixing sheath enlargement of pipe for natural tract, the caliber of the fixing sheath pipe inserted is relatively big, the most significantly expands
Body cavities and tissue, cause bigger misery to patient；And use expandable stent that natural tract is carried out expansion and compare above
Method has clear superiority during putting pipe, but it is not drawn out easily after putting pipe, not only limits its range,
And owing to such as occurring that emergency situations can not be changed and will affect its safety after placing.
Utility model content
This utility model embodiment provides a kind of medical operating walk way support, is putting solving sheath pipe of the prior art
When entering or extract human body, maybe can not extract owing to caliber is unadjustable, cause operating difficulties and the problem of patient's misery.
In order to solve above-mentioned technical problem, this utility model embodiment discloses following technical scheme:
A kind of medical operating walk way support, including: have memory function expandable stent and for the returning of human contact
Contracting film, described retracted film is coated on described expandable stent, wherein,
The two ends of described expandable stent connect into cylindrical shape by the attachment means being meshed, and described attachment means includes solid
Determining connector, the first connecting portion and the second connecting portion, the described first connecting portion side away from described retracted film is set to wedge
Shape face, described second connecting portion is provided with circular hole, and described fixing connector runs through each described circular hole of connection；
Described first connecting portion and described second connecting portion are alternately connected to the two ends of described expandable stent, described expansible
Second connecting portion of support one end contacts with the lozenges of the first connecting portion of the other end, and described retracted film expands described
Open the force of periphery of support more than the frictional force between the lozenges of described second connecting portion and described first connecting portion.
Preferably, described expandable stent includes nick-eltitanium alloy stent.
Preferably, one end of described expandable stent connects described second connecting portion, and the other end of described expandable stent is even
Connect described first connecting portion and the second connecting portion being arranged alternately.
Preferably, described retracted film is coated on the interior outside of described expandable stent.
Preferably, described fixing connector includes connecting line, and described circular hole is arranged along described expandable stent radial direction,
Each described circular hole is run through connection in order by connecting line.
Preferably, described fixing connector includes pitman, and described circular hole is arranged along described expandable stent axial direction,
Each described circular hole is run through connection in order by pitman.
Preferably, described attachment means includes that nut wire fixer, described nut wire fixer are arranged at described expandable stent footpath
To the one end in direction, fix the described connecting line of connection.
Preferably, described expandable stent includes at least one ripple network.
Preferably, the end face diameter of described pitman is more than the diameter of the skeleton of described expandable stent.
Preferably, the inside and outside wall with the described retracted film of human contact is hydrophilic structure.
From above technical scheme, a kind of medical operating walk way support of this utility model embodiment, including: there is memory
The expandable stent of function and for the retracted film with human contact, described retracted film is coated on described expandable stent,
Wherein, the two ends of described expandable stent connect into cylindrical shape by the attachment means being meshed, and described attachment means includes
Fixing connector, the first connecting portion and the second connecting portion, the described first connecting portion side away from described retracted film is set to
Lozenges, described second connecting portion is provided with circular hole, and described fixing connector runs through each described circular hole of connection；Described
A junction and described second connecting portion are alternately connected to the two ends of described expandable stent, described expandable stent one end
Second connecting portion contacts with the lozenges of the first connecting portion of the other end, the described retracted film circle to described expandable stent
Zhou Li is more than the frictional force between the lozenges of described second connecting portion and described first connecting portion.
Use the expandable stent in the channel bracket of technique scheme to have memory function, identical with human body temperature or
Under close outdoor temperature, the shape of expandable stent is set, expandable stent is arranged to cylindrical shape；Less than human body
At a temperature of, described expandable stent is arranged to contraction-like, the caliber of expandable stent now is less than time cylindric.Make
Used time, first described channel bracket is inserted body cavity, owing to described expandable stent has memory function, when reaching human body
After Nei, compared to human body outside, temperature changes, and expandable stent, under the influence of human body temperature, returns to originally set
Fixed shape, expandable stent reverts to cylindrical shape, and retracted film is supported by expandable stent, and channel bracket fully opens,
Service aisle has been set up；When pulling out expandable stent, the connecting line on described expandable stent is extracted, described connection
The second connecting portion in device is arranged in the lozenges of described first connecting portion, and the elastical retraction mould outside support compels passage
Support resilience, the one end of the described expandable stent being connected with described second connecting portion under the effect of retracted film, start to
In crimp, the diameter of channel bracket reduces, and alleviates tube drawing resistance, beneficially tube drawing.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will to embodiment or
In description of the prior art, the required accompanying drawing used is briefly described, it should be apparent that, for ordinary skill people
For Yuan, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
The first medical operating walk way support overall structure schematic diagram that Fig. 1 provides for this utility model embodiment；
The first medical crosscutting generalized section of operating walk way support that Fig. 2 provides for this utility model embodiment；
The first medical operating walk way support partial schematic diagram that Fig. 3 provides for this utility model embodiment；
Crosscutting section signal during the first medical operating walk way stent collapses that Fig. 4 provides for this utility model embodiment
Figure；
Partial schematic diagram when Fig. 5 is not connected with for the first medical operating walk way support that this utility model embodiment provides；
Partial schematic diagram when Fig. 6 connects for the first medical operating walk way support that this utility model embodiment provides；
The second medical operating walk way support overall structure schematic diagram that Fig. 7 provides for this utility model embodiment；
The second medical operating walk way crosscutting generalized section of support that Fig. 8 provides for this utility model embodiment；
The second medical operating walk way support partial schematic diagram that Fig. 9 provides for this utility model embodiment；
The third medical crosscutting generalized section of operating walk way support that Figure 10 provides for this utility model embodiment；
The 4th kind of medical crosscutting generalized section of operating walk way support that Figure 11 provides for this utility model embodiment；
Fig. 1-Figure 11, symbol represents:
1-retracted film, 2-expandable stent, 3-attachment means, 31-fixes connector, 32 first connecting portions, 33-second
Connecting portion.
Detailed description of the invention
For the technical scheme making those skilled in the art be more fully understood that in this utility model, below in conjunction with this practicality
Accompanying drawing in new embodiment, is clearly and completely described the technical scheme in this utility model embodiment, it is clear that
Described embodiment is only a part of embodiment of this utility model rather than whole embodiments.New based on this practicality
Embodiment in type, the every other reality that those of ordinary skill in the art are obtained under not making creative work premise
Execute example, all should belong to the scope of this utility model protection.
This utility model provides a kind of medical operating walk way and sets up support, by expansion and the form of contraction, reduces and puts
Pipe and the tube drawing misery that causes tissue and the risk of damage, the use for sheath pipe provides safe and simple and wide
The general suitability.
In order to make those skilled in the art be more fully understood that this utility model scheme, below in conjunction with the accompanying drawings with embodiment pair
This utility model is described in further detail.
Embodiment one
See Fig. 1, Fig. 2 and Fig. 3, the first medical operating walk way support that Fig. 1 provides for this utility model embodiment
Overall structure schematic diagram, the first medical crosscutting section of operating walk way support that Fig. 2 provides for this utility model embodiment shows
It is intended to；The first medical operating walk way support partial schematic diagram that Fig. 3 provides for this utility model embodiment.
This utility model embodiment provides a kind of medical operating walk way support, including: there is expansible of memory function
Frame 2 and for the retracted film 1 of human contact, described retracted film 1 is coated on the interior outside of described expandable stent 2.
The two ends of described expandable stent 2 connect into cylindrical shape, described attachment means 3 by the attachment means 3 being meshed
Including fixing connector the 31, first connecting portion 32 and the second connecting portion 33, described first away from described retracted film 1 connects
Connecing side, portion 32 and be set to lozenges, described second connecting portion 33 is provided with circular hole, and described fixing connector 31 runs through even
Connect each described circular hole.
Described expandable stent 2 includes at least one ripple network, and the internal diameter of described ripple network is with described
The effect of expansion pipe increases, and described network is then by the ring staggered of both sides mesh skeleton extension and from bracket bottom
End extends to top.Described expandable stent 2 can be made up of Nitinol.
Nitinol is a kind of marmem, and marmem is can be by the plastic deformation of self in a certain specific temperature
The special alloy of original-shape it is automatically restored under degree.Its expansion and contraction is more than 20%, and fatigue life reaches 1*107, damping
Characteristic is higher than common spring 10 times, and its corrosion resistance is better than the most best medical stainless steel, therefore can meet all kinds of
Engineering and the application demand of medical science, be the most outstanding a kind of functional material.
Nitinol, in addition to having the shape memory function of uniqueness, also has wear-resistant, anticorrosive, high-damping and super-elasticity
Deng excellent characteristics.
Expandable stent 2 in this utility model is not restricted to above-mentioned Nitinol, every material with memory function
Matter, and it is suitable for use as medical material.
In this utility model, the material of above-mentioned expandable stent 2 is a kind of implementation therein, but should not
As the restriction of this utility model protection domain, those skilled in the art may select other material according to practical situation,
Within it all should fall into protection domain of the present utility model.
In this utility model embodiment, one end of described expandable stent 2 connects described second connecting portion 33, described expands
The other end opening support 2 connects described first connecting portion 32 and the second connecting portion 33 being arranged alternately, and is arranged so that
When described expandable stent 2 shrinks, the one end being only connected with described second connecting portion 33 is inwardly crimped contraction, it is to avoid described
When expandable stent 2 shrinks, cause the jam of expandable stent 2 owing to two ends intersect, cause and cannot shrink
Situation.
In the present embodiment, the circular hole on the second connecting portion 33 is arranged along the axial direction of described expandable stent 2, described
Fixing connector 31 is pitman, and each described circular hole is run through connection in order by pitman.In order to prevent described pitman from existing
Will not bend and be difficult to extract in process of expansion, the end face diameter of described pitman should be than described expandable stent 2
Mesh skeleton big.
The fixed form of above-mentioned expandable stent 2 is a kind of implementation therein, but should not be as this
The restriction of utility model protection scope, those skilled in the art may select other fixed form according to practical situation, and it is equal
Within protection domain of the present utility model should be fallen into.
Expandable stent 2 external diameter should be more slightly larger than described retracted film 1 internal diameter, buries in elastic retracted film 1, to ensure
During inserting, do not have described retracted film 1 come off, in order to the uniformity expanded and shrink.
Described retracted film 1 outer layer should be for water wetted material, it is ensured that support reduces friction during inserting, and alleviates patient
Painful.Retracted film 1 described in this utility model embodiment can use the elastomeric material of the favorable elasticities such as medical silica-gel film to make.
Before using, expandable stent 2 and retracted film 1 are combined closely, and are in contraction state, as shown in Figure 4, and Fig. 4
For this utility model embodiment provide the first medical operating walk way stent collapses time crosscutting generalized section.Described
A junction 32 and the second connecting portion 33 are linked together by described pitman, the two of the most described expandable stent 2
End connects, and described expandable stent 2 is coated with by described retracted film 1.
The first medical operating walk way support that seeing Fig. 5 and Fig. 6, Fig. 5 provides for this utility model embodiment is not connected with
Time partial schematic diagram；When Fig. 6 connects for the first medical operating walk way support that this utility model embodiment provides, local shows
It is intended to；Described first connecting portion 32 and described second connecting portion 33 are alternately connected to the two ends of described expandable stent 2,
Second connecting portion 33 of described expandable stent 2 one end contacts with the lozenges of the first connecting portion 32 of the other end.Institute
State the retracted film 1 force of periphery to described expandable stent 2 more than described second connecting portion 33 and described first connecting portion 32
Lozenges between frictional force.
Before using, under the outdoor temperature same or like with human body temperature, the shape of expandable stent 2 is set, can
Expandable stent 2 is arranged to cylindrical shape；Less than in the environment of human body temperature, it is arranged to described expandable stent 2 shrink
Shape, the caliber of expandable stent 2 now is less than time cylindric.
During use, first described channel bracket is inserted body cavity, owing to described expandable stent 2 has memory function, when
After reaching into the human body, compared to human body outside, temperature changes, and expandable stent 2 is under the influence of human body temperature, extensive
It is multiple that to the original shape set, expandable stent 2 reverts to cylindrical shape, and retracted film 1 is supported by expandable stent 2,
The force of periphery of described expandable stent 2 is more than the force of periphery of described retracted film 1, and the most described expandable stent 2 will not be because of institute
State the effect of retracted film 1 and compressed, cause expandable stent 2 to deform or the diameter of channel bracket diminishes, channel bracket
Fully opening, service aisle has been set up；When pulling out expandable stent 2, by the pitman on described expandable stent 2
Extracting, the second connecting portion 33 in described attachment means 3 is arranged in the lozenges of described first connecting portion 32, support
Outer elastic described retracted film 1 oppresses channel bracket resilience, described expansible be connected with described second connecting portion 33
One end of frame 2, under the effect of retracted film 1, starts to be inwardly crimped, and the diameter of channel bracket reduces, and alleviates tube drawing resistance,
It is beneficial to tube drawing.
This utility model compared to existing technology, is managed by arranging expansion so that support enters body when inserting with relatively loculus footpath
Chamber, reduces the risk to tract damaging surrounding tissue during inserting；After inserting again slowly radial dilatation body cavities and
Tissue, significantly reduces patient suffering；The compressing utilizing retracted film 1 bounces back, and reduces diameter when support is extracted, subtracts
Light tube drawing resistance and the misery caused.
Embodiment two
As shown in Fig. 7, Fig. 8 and Fig. 9, the medical operating walk way of the second that Fig. 7 provides for this utility model embodiment props up
Frame overall structure schematic diagram；The second medical operating walk way crosscutting section of support that Fig. 8 provides for this utility model embodiment
Schematic diagram；The second medical operating walk way support partial schematic diagram that Fig. 9 provides for this utility model embodiment.
The difference of this embodiment and embodiment one is in this embodiment the fixed form of the expandable stent 2 of employing not
With.Fixing connector 31 in the present embodiment is not to use pitman, but uses connecting line；On second connecting portion 33
Circular hole arrange along described expandable stent 2 radial direction, from top, orderly equally spaced arrangement combines to end,
And the end in described channel bracket has a nut wire fixer, described nut wire fixer to be arranged at described expandable stent 2
One end of radial direction, the described connecting line of fixing connection.Before use, there is a silk thread through each circular hole, by described
Expandable stent 2 is fixed as a complete structure, and uses wire fixer to be fixed by silk thread at end；Wait to extract described expansible
When support 2 and retracted film 1, turn on nut wire fixer, silk thread is decontroled one end and extracts silk thread out.Due to retracted film 1
Compressing, expandable stent 2 shrinkage crimping, caliber diminishes, and alleviates resistance, be beneficial to tube drawing when extracting.
The fixed form of above-mentioned expandable stent 2 is a kind of implementation therein, but should not be as this
The restriction of utility model protection scope, those skilled in the art may select other fixed form according to practical situation, and it is equal
Within protection domain of the present utility model should be fallen into.
Embodiment three
As shown in Figure 10, this embodiment difference compared with embodiment one is, the retracted film in the present embodiment is tight
Being wrapped in outside expandable stent 2, both are the most inter-adhesive, and expandable stent 2 uses dentation to combine, and utilizes attachment means
3 are connected, and use pitman to be fixed.Before use, described expandable stent 2 is fixed as overall knot by pitman
Structure；When extracting described expandable stent 2, pitman is extracted, now due to the compressing of retracted film 1, expansible
Frame 2 fracture retraction, in order to after contraction, resistance alleviates, and extracts retracted film 1 and expandable stent 2.For this embodiment,
We equally use the binding site identical with embodiment two, use silk thread to be fixed by expandable stent 2,
Silk thread can be dismantled when tube drawing, after contraction, remove support and retracted film 1.
Embodiment four
As shown in figure 11, this embodiment difference compared with embodiment three is, expansible in the present embodiment
Frame 2 uses multiple binding site, and this position all uses dentation to combine, and utilizes attachment means 3 to be connected, and uses pitman
It is fixed.Before use, described expandable stent 2 is fixed as overall structure by each pitman；Extract described can
During expandable stent 2, being extracted by each pitman, now due to the compressing of retracted film 1, expandable stent 2 fracture is scattered,
So that resistance alleviates after all parts takes out one by one or shrinks, extract retracted film 1 and expandable stent 2.Real for this
Executing example, we equally use the binding site identical with embodiment two, use silk thread to be combined by all parts,
Each silk thread put can be dismantled when tube drawing, take out one by one after contraction or whole removing is except support.
Visible, channel bracket described in the utility model is in the memory function by expandable stent 2 after inserting body cavity,
Realize with the form expanded stent interior lumen of self expandable, it is to avoid when larger-diameter sheath pipe inserts body cavity by force,
Significantly expansion body cavities and the situation of tissue, correspondingly reduces the risk of outside expansion damage surrounding tissue, with
Time by the way of continuously slowly expansion, expand body cavities and tissue to alleviate patient painful.
It should be noted that in this article, such as the relational terms of " first " and " second " or the like be used merely to by
One entity or operation separate with another entity or operating space, and not necessarily require or imply these entities or behaviour
Relation or the order of any this reality is there is between work.And, term " includes ", " comprising " or it is any
Other variants are intended to comprising of nonexcludability so that include the process of a series of key element, method, article or
Equipment not only includes those key elements, but also includes other key elements being not expressly set out, or also includes for this mistake
The key element that journey, method, article or equipment are intrinsic.In the case of there is no more restriction, statement " include one
It is individual ... " key element that limits, it is not excluded that there is also in including the process of described key element, method, article or equipment
Other identical element.
The above is only detailed description of the invention of the present utility model, makes to skilled artisans appreciate that or realize this reality
With novel.Multiple amendment to these embodiments will be apparent to one skilled in the art, herein institute
The General Principle of definition can realize in the case of without departing from spirit or scope of the present utility model in other embodiments.
Therefore, this utility model is not intended to be limited to the embodiments shown herein, and is to fit to disclosed herein
Principle and the consistent the widest scope of features of novelty.
Claims (10)
1. a medical operating walk way support, it is characterised in that including: there is the expandable stent (2) of memory function
With for the retracted film (1) with human contact, described retracted film (1) is coated on described expandable stent (2), its
In,
The two ends of described expandable stent (2) connect into cylindrical shape, described connection by the attachment means (3) being meshed
Device (3) includes fixing connector (31), the first connecting portion (32) and the second connecting portion (33), away from described retraction
Described first connecting portion (32) side of film (1) is set to lozenges, and described second connecting portion (33) is provided with circular hole,
Described fixing connector (31) runs through each described circular hole of connection；
Described first connecting portion (32) and described second connecting portion (33) are alternately connected to described expandable stent (2)
The wedge of two ends, second connecting portion (33) of described expandable stent (2) one end and first connecting portion (32) of the other end
Shape face contacts, described retracted film to the force of periphery of described expandable stent (2) more than described second connecting portion (33) with
Frictional force between the lozenges of described first connecting portion (32).
Medical operating walk way support the most according to claim 1, it is characterised in that described expandable stent (2)
Including nick-eltitanium alloy stent.
Medical operating walk way support the most according to claim 1, it is characterised in that described expandable stent (2)
One end connect described second connecting portion (33), the other end of described expandable stent (2) connects be arranged alternately described
First connecting portion (32) and the second connecting portion (33).
Medical operating walk way support the most according to claim 1, it is characterised in that described retracted film (1) is coated with
Interior outside in described expandable stent (2).
Medical operating walk way support the most according to claim 1, it is characterised in that described fixing connector (31)
Including connecting line, described circular hole is arranged along described expandable stent (2) radial direction, and each described circular hole is had by connecting line
Sequential wear connection.
Medical operating walk way support the most according to claim 1, it is characterised in that described fixing connector (31)
Including pitman, described circular hole is arranged along described expandable stent (2) axial direction, and each described circular hole is had by pitman
Sequential wear connection.
Medical operating walk way support the most according to claim 5, it is characterised in that described attachment means (3) is wrapped
Including nut wire fixer, described nut wire fixer is arranged at one end of described expandable stent (2) radial direction, fixing connection
Described connecting line.
Medical operating walk way support the most according to claim 1, it is characterised in that described expandable stent (2)
Including at least one ripple network.
Medical operating walk way support the most according to claim 6, it is characterised in that the end face diameter of described pitman
Diameter more than the skeleton of described expandable stent (2).
Medical operating walk way support the most according to claim 1, it is characterised in that return with described in human contact
The inside and outside wall of contracting film (1) is hydrophilic structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620207561.3U CN205548597U (en) | 2016-03-17 | 2016-03-17 | Medical operation passageway support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620207561.3U CN205548597U (en) | 2016-03-17 | 2016-03-17 | Medical operation passageway support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205548597U true CN205548597U (en) | 2016-09-07 |
Family
ID=56814781
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620207561.3U Withdrawn - After Issue CN205548597U (en) | 2016-03-17 | 2016-03-17 | Medical operation passageway support |
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| Country | Link |
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| CN (1) | CN205548597U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105832368A (en) * | 2016-03-17 | 2016-08-10 | 中国人民解放军第三军医大学第二附属医院 | Medical operating channel stent |
-
2016
- 2016-03-17 CN CN201620207561.3U patent/CN205548597U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105832368A (en) * | 2016-03-17 | 2016-08-10 | 中国人民解放军第三军医大学第二附属医院 | Medical operating channel stent |
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| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160907 Effective date of abandoning: 20180731 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20160907 Effective date of abandoning: 20180731 |