CN106377302A - Core-less puncture outfit - Google Patents
Core-less puncture outfit Download PDFInfo
- Publication number
- CN106377302A CN106377302A CN201610878916.6A CN201610878916A CN106377302A CN 106377302 A CN106377302 A CN 106377302A CN 201610878916 A CN201610878916 A CN 201610878916A CN 106377302 A CN106377302 A CN 106377302A
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- CN
- China
- Prior art keywords
- sleeve pipe
- chute
- puncture tip
- centreless
- plane
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3415—Trocars; Puncturing needles for introducing tubes or catheters, e.g. gastrostomy tubes, drain catheters
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3478—Endoscopic needles, e.g. for infusion
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
- A61B2017/3454—Details of tips
Abstract
The invention discloses a core-less puncture outfit, comprising a puncture point, a thimble assembly and a seal assembly, wherein the thimble assembly comprises a thimble arranged in a penetrating manner, one end of the thimble is selectively sealed by the seal assembly, the other end of the thimble is accommodated in the puncture point and selectively opened or closed by the puncture point, and the puncture point can be connected to the outside wall surface of the other end of the thimble. The core-less puncture outfit disclosed by the invention is convenient in use and low in cost, the core-less puncture outfit is not provided with a puncture core bar as the traditional puncture outfit, puncture of the puncture outfit is realized by the puncture point, and when an anastomat or other operative instruments need to enter an abdominal cavity, the port of the thimble is opened for the anastomat or other operative instruments to enter.
Description
Technical field
The present invention relates to a kind of surgical instrumenties, in particular to a kind of centreless perforator, belong to area of medical devices.
Background technology
Check in abdominal cavity, in abdominal operation and other minimally invasive or surgical operations, perforator is requisite operating theater instruments.
Perforator can set up entrance passage in the stomach wall of human body, (such as endoscope, to cut for anastomat or other operating theater instruments
Knife, seal wire, conduit, filter, support etc.) enter intraperitoneal, and provide the passage of gas turnover, to control the required gas of operation
Abdomen, to be checked or operation technique.
When invasive anastomat medical operating starts, doctor typically first scratches a little otch in patient's abdominal part, then will wear
Move down while reciprocating rotation about the little otch that the summit be aligned of the cutting tip of thorn core bar is scratched, perforator makes puncture set
Pipe through patient's abdominal part cortex, then, extracted by doctor by the puncture core bar within puncture casing.
However, because perforator mostly is single use, thus, in traditional perforator with puncture core bar, each
The puncture core bar of perforator is thrown aside after completing to puncture, and so causes serious waste, improves perforator
Manufacturing cost；And because the sealing structure of perforator is elastic material, in order to ensure its sealing, puncture core bar and sealing sleeve pipe group
Part need to be packed after splitting, and improves packing cost.Therefore, for the problems referred to above it is necessary to propose further solution.
Content of the invention
For the deficiencies in the prior art, the present invention is intended to provide a kind of centreless perforator, existed with overcoming in prior art
Deficiency.
For achieving the above object, the present invention provides a kind of centreless perforator, and it includes：Puncture tip, thimble assembly
And black box；
Described sleeve pipe assembly includes sleeve pipe, and described sleeve pipe insertion is arranged, and one end of described sleeve pipe is entered by described black box
Row selectivity seals, and the other end of described sleeve pipe is contained in described puncture tip, and the other end of described sleeve pipe is worn by described
Puncture tip end is selectively opened or closes, and described puncture tip is rotatably connected to the lateral wall of the described sleeve pipe other end
On face.
As the improvement of the centreless perforator of the present invention, described puncture tip has primary importance and the second position；Described
When puncture core tip is located at described primary importance, the central axis of described puncture tip is paralleled with the central axis of described sleeve pipe
Or overlap, and the described other end of described sleeve pipe is closed by described puncture tip；Described puncture core is most advanced and sophisticated to be located at described second
When putting, there is between the central axis of described puncture tip and the central axis of described sleeve pipe angle, and described sleeve pipe is described
The other end is opened by described puncture tip.
As the improvement of the centreless perforator of the present invention, the lateral wall of described sleeve pipe is symmetrically arranged with sliding tray, described
It is symmetrically arranged with slide block, described slide block can slide along described sliding tray on the medial wall of puncture tip.
As the improvement of the centreless perforator of the present invention, described sliding tray includes the first chute and the second chute, and described
One chute is extended approximately along the axial direction of described sleeve pipe, and the end of described first chute and the second chute is connected, and
Between described first chute and the second chute, there is angle, described angle is obtuse angle.
As the improvement of the centreless perforator of the present invention, described sliding tray also includes the 3rd chute, described 3rd chute with
Described first chute and the second chute are connected, and described 3rd chute is symmetrical arranged with described second chute, and the described 3rd is sliding
Groove is overlapped with the centrage in described first track length direction with the axis of symmetry of described second chute.
As the improvement of the centreless perforator of the present invention, between described second chute and the 3rd chute, there is angle, described
Angle is less than or equal to 180 °；When described angle is less than 180 °, between described second chute and the 3rd chute, there is projection, described convex
Rise and be extended towards described first groove；When described angle is equal to 180 °, smooth between described second chute and the 3rd chute
Connect.
As the improvement of the centreless perforator of the present invention, described raised end is arc or linear type.
As the improvement of the centreless perforator of the present invention, described sliding tray is arcuate groove, and described slide block can be from described arc
One end of groove slides into the other end, described slide block be located at described arcuate groove one end when, the central axis of described puncture tip with
The central axis of described sleeve pipe is parallel or overlaps, and the described other end of described sleeve pipe is closed by described puncture tip；Described
When slide block slides into the other end of described arcuate groove, between the central axis of described puncture tip and the central axis of described sleeve pipe
There is angle, and the described other end of described sleeve pipe is opened by described puncture tip.
As the improvement of the centreless perforator of the present invention, the end symmetric of described puncture tip is provided with extension, described
Slide block is located on the medial wall of described extension.
As the improvement of the centreless perforator of the present invention, the lateral wall of described sleeve pipe end is provided with stage portion.
As the improvement of the centreless perforator of the present invention, described puncture tip and described sleeve pipe are provided with sunk structure,
Produce when preventing both from mutually moving and interfere.
As the improvement of the centreless perforator of the present invention, in the inner space of described puncture tip, it is provided with inclined-plane, described
The edge on inclined-plane is connected with the medial wall of described puncture tip, and described inclined-plane tilts towards the direction of rotation of described puncture tip
Setting, and described inclined-plane is near the described other end of described sleeve pipe.
As the improvement of the centreless perforator of the present invention, described inclined-plane is ellipse, or, it is oblique that described inclined-plane includes first
Face and the second inclined-plane, described first inclined-plane and the second inclined-plane intersect, and the axis of described sleeve pipe passes through described first inclined-plane and second
Intersection between inclined-plane, described first inclined-plane and the second inclined-plane are half elliptic.
Compared with prior art, the invention has the beneficial effects as follows：The centreless perforator of the present invention does not possess traditional perforator
In puncture core bar, thus cost is relatively low, and need to need not pack puncturing core bar after splitting with sealing sleeve pipe assembly, reduces
Packing cost.Centreless perforator relies on puncture tip to realize the puncture of perforator, and can need anastomat or other operations
When apparatus enters abdominal cavity, open the port of sleeve pipe, enter for anastomat or other operating theater instruments, thus easy to use.
Brief description
Fig. 1 be centreless perforator one specific embodiment of the present invention puncture tip and thimble assembly exploded pictorial
Figure；
Fig. 2 is in the centreless perforator of the present invention, and the described most advanced and sophisticated plane being located at during described primary importance of core that punctures is illustrated
Figure；
Fig. 3 is in the centreless perforator of the present invention, and the described most advanced and sophisticated plane being located at during the described second position of core that punctures is illustrated
Figure；
Fig. 4 is the floor map of centreless perforator middle sleeve one specific embodiment of the present invention；
Fig. 5 is the floor map of another specific embodiment of centreless perforator middle sleeve of the present invention；
Fig. 6 is internally provided with floor map during inclined-plane for puncture tip in the centreless perforator of the present invention；
Fig. 7 is internally provided with floor map during inclined-plane for puncture tip in the centreless perforator of the present invention.
Specific embodiment
Embodiments of the invention are described below in detail, the example of described embodiment is shown in the drawings, wherein from start to finish
The element that same or similar label represents same or similar element or has same or like function.
In describing the invention it is to be understood that term " " center ", " longitudinal ", " horizontal ", " length ", " width ",
" thickness ", " on ", D score, "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outward ", " axle
To ", " radially ", " circumferential ", the orientation of the instruction such as " reciprocal " or position relationship be based on orientation shown in the drawings or position relationship,
Be for only for ease of the description present invention and simplify description, rather than instruction or the hint device of indication or element must have specific
Orientation, with specific azimuth configuration and operation, be therefore not considered as limiting the invention.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or hint relative importance
Or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include at least one this feature.In describing the invention, " multiple " are meant that at least two, such as two, three
Individual etc., unless otherwise expressly limited specifically.
Embodiment below with reference to Description of Drawings is exemplary it is intended to be used for explaining the present invention, and is not understood that
For limitation of the present invention.With reference to specific embodiment, each technical scheme of the present invention is described in detail.
As shown in figure 1, the centreless perforator of the present invention includes：Puncture tip 10, thimble assembly and black box.
Described puncture tip 10 is used for realizing the puncture of perforator, that replaces the puncture core in existing perforator.And institute
State puncture tip 10 and can open the port of sleeve pipe, for anastomat when needing for anastomat or other operating theater instruments to enter abdominal cavity
Or other operating theater instruments enter.
Described sleeve pipe assembly includes sleeve pipe 20, and described sleeve pipe 20 insertion is arranged, to set up kiss after it enters human abdominal cavity
The entrance passage of clutch or other operating theater instruments.One end of described sleeve pipe 20 carries out selectivity by described black box (not shown)
Sealing, the other end 21 of described sleeve pipe 20 is contained in described puncture tip 10, and the other end 21 of described sleeve pipe 20 is by described
Puncture tip 10 is selectively opened or closes, and specifically, described puncture tip 10 is movably connected on described set in rotary manner
On the outer side surface of pipe 20 end.Wherein, described selectivity sealing refers to, enters abdomen needing anastomat or other operating theater instruments
During chamber, described black box does not seal to one end of described sleeve pipe 20；Enter not needing anastomat or other operating theater instruments
When entering abdominal cavity, described black box seals to one end of described sleeve pipe 20.Described selectively opened or closing refers to, is entering
When row punctures, described puncture tip 10 closes the other end 21 of described sleeve pipe 20；Enter needing anastomat or other operating theater instruments
When entering abdominal cavity, described puncture tip 10 opens the other end 21 of described sleeve pipe 20.
So, when needing to puncture, described puncture tip 10 closes the other end 21 of described sleeve pipe 20, is puncturing active force
Under, puncture tip 10 passes through the otch cortex of patient's abdominal part, enters in the abdominal cavity of human body.Stretch in needing to human abdominal cavity
When anastomat or other operating theater instruments, anastomat or other operating theater instruments from one end sleeve pipe 20 of sleeve pipe 20, stretch into
In the presence of anastomat or other operating theater instruments, puncture tip 10 is rotated, and opens the other end of described sleeve pipe 20
21, thus facilitating the entrance of anastomat or other operating theater instruments.
Cooperation with reference to Fig. 2,3, further, described puncture tip 10 has primary importance A and second position B.Described wear
When puncture tip end 10 is located at described primary importance A, the central axis of described puncture tip 10 and the central axis phase of described sleeve pipe 20
Parallel or overlap, and the other end 21 of described sleeve pipe 20 closes by described puncture tip 10；Described puncture core most advanced and sophisticated 10 is located at institute
When stating second position B, between the central axis of described puncture tip 10 and the central axis of described sleeve pipe 20, there is angle, described
The other end 21 of sleeve pipe 20 is opened by described puncture tip 10.
Additionally, as shown in figure 1, stage portion 22, described step are provided with the lateral wall of the other end 21 of described sleeve pipe 20
Portion 22 is leant with the end face of described puncture tip 10.Preferably, the other end 21 of described puncture tip 10 and described sleeve pipe 20
The wall thickness of part of suit is consistent with the height of described stage portion 22.Described height is along the radial direction of described sleeve pipe 20.As
This setting, maintains puncture tip 10 and the concordance of sleeve pipe 20 outside dimension, can avoid blocking the situation of patient tissue,
Be conducive to being smoothed out of piercing process.
As shown in figure 4, opening in rotary manner or close the end of described sleeve pipe 20 to realize described puncture tip 10
Mouthful, the lateral wall of described sleeve pipe 20 is symmetrically arranged with sliding tray, the lateral wall of described sleeve pipe 20 includes the described other end 21
Lateral wall, the medial wall of described puncture tip 10 is symmetrically arranged with slide block 11, and described slide block 11 can slide along described sliding tray.
Wherein, described sliding tray can insertion described sleeve pipe 20 wall setting, also can be recessed on the lateral wall being arranged at described sleeve pipe 20.
Specifically, the sliding tray of either side includes the first chute 23 and the second chute 24, and wherein, described first chute 23 is big
The axial direction along described sleeve pipe 20 is caused to be extended, described first chute 23 is connected with the end of the second chute 24, and institute
State, between the first chute 23 and the second chute 24, there is angle, described angle is obtuse angle.Preferably, described first chute 23 and
Two chutes 24 are smoothly connected, to facilitate described slide block 11 to be slided between described first chute 23 and the second chute 24
Dynamic.Preferably, described slide block 11 can be cylindrical projection cube structure, and described sliding tray is to be available for sliding shoe 11 to slide wherein
Special-shaped slot.
Accordingly it is desirable to when puncturing, the central axis of described puncture tip 10 is paralleled with the central axis of described sleeve pipe 20
Or overlap, puncture tip 10 guiding described sleeve pipe 20 enters in human abdominal cavity.Puncture tip 10 and sleeve pipe 20 enter human body abdomen
After in chamber, when stretching into anastomat or other operating theater instruments in needing to human abdominal cavity, under external force, slide block 11 is along described
First chute 23 slides in described second chute 24, and is eventually located at one end of the second chute 23.Due to described first chute
23 and second angles between chute 24 are obtuse angle, and described puncture tip 10 rotates to the side of described sleeve pipe 20, thus opening
The port of described sleeve pipe 20, to facilitate anastomat or other operating theater instruments passing in and out in the patient.
As shown in figure 5, in other embodiments, in order to realize the bidirectional rotation of puncture casing 20.The slip of either side
Groove also includes the 3rd chute 25, and wherein, described 3rd chute 25 is connected with described first chute 23 and the second chute 24, and institute
State the 3rd chute 25 to be symmetrical arranged with described second chute 24, the axis of symmetry of described 3rd chute 25 and described second chute 24 with
The centrage of described first chute 23 length direction overlaps.Preferably, described first chute 23 and the 3rd chute 25 are smoothed
Ground connects, to facilitate described slide block 11 to enter line slip between described first chute 23 and the 3rd chute 25.
It is arranged such, when stretching into anastomat or other operating theater instruments in needing to human abdominal cavity, doctor can be needed by operation
Will, it is applied to the direction of the external force of puncture tip 10 by controlling anastomat or other operating theater instruments, by slide block 11 along described the
One chute 23 slides in described second chute 24 or the 3rd chute 25, and now, described puncture tip 10 rotates to described set
The side of pipe 20, thus opening the port of described sleeve pipe 20, to facilitate the entrance of anastomat or other operating theater instruments.
When described sliding tray includes the second chute 24 and three chutes 25 simultaneously, described second chute 24 and the 3rd chute
Between 25, there is angle, described angle is less than or equal to 180 °.Wherein, when described angle is less than 180 °, described second chute 24 He
Have raised 26, described raised 26 between 3rd chute 25 to be extended towards described first chute 23.Described convex by arranging
Play 26, slide block 11 can be limited and be moved in chute, to avoid puncture tip 10 voluntarily to revolve in the presence of external force
Turn.Preferably, described raised 26 end is arc or linear type.When described angle is equal to 180 °, described second chute 24 He
In smoothing junction between 3rd chute 25, it is not provided with therebetween raised 26.
Additionally, in other embodiments, also the setting of described sliding tray can be structure as a whole, now, described sliding tray
It is integrally formed, and described sliding tray is arcuate groove, described slide block 11 can slide into the other end from one end of described arcuate groove.From
And, when described slide block 11 is located at one end of described arcuate groove, the central axis of described puncture tip 10 and described sleeve pipe 20
Central axis is parallel or overlaps, and the described other end of described sleeve pipe 20 is closed by described puncture tip 10；When described slide block
During the other end that 11 slide into described arcuate groove, the central axis of described puncture tip 10 and the central axis of described sleeve pipe 20 it
Between there is angle, and the described other end of described sleeve pipe 20 is opened by described puncture tip 10.
Because the other end 21 of described sleeve pipe 20 is contained in described puncture tip 10, thus, when described puncture tip 10
Relative to described sleeve pipe 20 rotated when, can interfere between puncture tip 10 and sleeve pipe 20.Interference referred to herein refers to two
Individual or more parts when moving, due to mutually support touch and lead to not to continue motion or contact with each other friction and
The limitation of movement producing.Thus, in order to avoid interfere generation, described puncture tip 10 relative to described sleeve pipe 20 rotate when, two
Interference part office between person is provided with sunk structure 30.As shown in figure 1, by arranging described sunk structure 30, it is to avoid
Clash in relative motion between puncture tip 10 and sleeve pipe 20, and lead to puncture tip 10 cannot open.
The end symmetric of described puncture tip 10 is provided with extension 12, and described extension 12 is along described puncture tip 10
Axial direction is extended, and described slide block 11 is located on the wall of inner side of described extension 12.Wherein it is preferred to, described
Extension 12 integrally extends from described puncture tip 10, and in other embodiments, described extension 12 may also be employed
The mode connecting is arranged in described puncture tip 10.
As shown in fig. 6, additionally, in the presence of anastomat or other operating theater instruments, so that puncture tip 10 can
Successfully rotate to the side of described sleeve pipe 20, in the inner space of described puncture tip 10, be provided with inclined-plane 13, described inclined-plane
13 edge is connected with the medial wall of described puncture tip 10, and described inclined-plane 13 is towards the direction of rotation of described puncture tip 10
It is obliquely installed, and described inclined-plane 13 is near the port of described sleeve pipe 20.So, when anastomat or other operating theater instruments stretch into sleeve pipe
20 and when leaning with described inclined-plane, the Force decomposition that inclined-plane 13 enables to anastomat or other operating theater instruments apply goes out edge
The component on inclined-plane 13, in the presence of this component, is capable of the smooth rotation of puncture tip 10.
As described in Figure 7, in above-mentioned embodiment, described inclined-plane 13 can be ellipse.Additionally, in order to adapt to puncture casing
20 bidirectional rotation, described inclined-plane 13 includes the first inclined-plane and the second inclined-plane, wherein, described first inclined-plane and the second inclined-plane phase
Hand over, the axis of described sleeve pipe 20 passes through the intersection between described first inclined-plane and the second inclined-plane.Now, described first inclined-plane and
Two inclined-planes are half elliptic.
In sum, the centreless perforator of the present invention is easy to use, with low cost, and described centreless perforator does not possess tradition
Puncture core bar in perforator, it relies on puncture tip to realize the puncture of perforator, and can need anastomat or other handss
When art apparatus enters abdominal cavity, open the port of sleeve pipe, enter for anastomat or other operating theater instruments.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or integral；Can be that machinery connects
Connect or electrically connect；Can be to be joined directly together it is also possible to be indirectly connected to by intermediary, can be in two elements
The connection in portion or the interaction relationship of two elements, limit unless otherwise clear and definite.For those of ordinary skill in the art
For, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score permissible
It is the first and second feature directly contacts, or the first and second features pass through intermediary mediate contact.And, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature are directly over second feature or oblique upper, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is immediately below second feature or obliquely downward, or is merely representative of fisrt feature level height and is less than second feature.
In the description of this specification, reference term " embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy describing with reference to this embodiment or example
Point is contained at least one embodiment or the example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.And, the specific features of description, structure, material or feature can be in office
Combine in an appropriate manner in one or more embodiments or example.Additionally, in the case of not conflicting, the skill of this area
The feature of the different embodiments described in this specification or example and different embodiment or example can be tied by art personnel
Close and combine.
Although embodiments of the invention have been shown and described above it is to be understood that above-described embodiment is example
Property it is impossible to be interpreted as limitation of the present invention, those of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changes, replacing and modification.
Claims (13)
1. a kind of centreless perforator is it is characterised in that described centreless perforator includes：Puncture tip, thimble assembly and sealing
Assembly；
Described sleeve pipe assembly includes sleeve pipe, and described sleeve pipe insertion is arranged, and one end of described sleeve pipe is selected by described black box
Selecting property seals, and the other end of described sleeve pipe is contained in described puncture tip, and the other end of described sleeve pipe is by described puncture tip
End is selectively opened or closes, and described puncture tip is rotatably connected to the outer side surface of the described sleeve pipe other end
On.
2. centreless perforator according to claim 1 is it is characterised in that described puncture tip has primary importance and second
Position；Described puncture core is most advanced and sophisticated when being located at described primary importance, the central axis of described puncture tip and the center of described sleeve pipe
Axis is parallel or overlaps, and the described other end of described sleeve pipe is closed by described puncture tip；Described puncture core tip is located at
During the described second position, between the central axis of described puncture tip and the central axis of described sleeve pipe, there is angle, and described
The described other end of sleeve pipe is opened by described puncture tip.
3. centreless perforator according to claim 1 is it is characterised in that be symmetrically arranged with cunning on the lateral wall of described sleeve pipe
Dynamic groove, the medial wall of described puncture tip is symmetrically arranged with slide block, and described slide block can slide along described sliding tray.
4. centreless perforator according to claim 3 is it is characterised in that described sliding tray includes the first chute and the second cunning
Groove, described first chute is extended approximately along the axial direction of described sleeve pipe, the end of described first chute and the second chute
It is connected, and between described first chute and the second chute, there is angle, described angle is obtuse angle.
5. centreless perforator according to claim 4 is it is characterised in that described sliding tray also includes the 3rd chute, described
3rd chute is connected with described first chute and the second chute, and described 3rd chute is symmetrical arranged with described second chute,
Described 3rd chute is overlapped with the centrage in described first track length direction with the axis of symmetry of described second chute.
6. centreless perforator according to claim 5 is it is characterised in that have between described second chute and the 3rd chute
Angle, described angle is less than or equal to 180 °；When described angle is less than 180 °, have convex between described second chute and the 3rd chute
Rise, described raised extended towards described first groove；When described angle is equal to 180 °, described second chute and the 3rd chute
Between in smoothing junction.
7. centreless perforator according to claim 6 is it is characterised in that described raised end is arc or linear type.
8., it is characterised in that described sliding tray is arcuate groove, described slide block can for centreless perforator according to claim 3
Slide into the other end from one end of described arcuate groove, when described slide block is located at one end of described arcuate groove, described puncture tip
Central axis is parallel with the central axis of described sleeve pipe or overlaps, and the described other end of described sleeve pipe is by described puncture tip
Closure；When described slide block slides into the other end of described arcuate groove, in the central axis of described puncture tip and described sleeve pipe
There is between the heart axis angle, and the described other end of described sleeve pipe is opened by described puncture tip.
9. centreless perforator according to claim 3 is it is characterised in that the end symmetric of described puncture tip is provided with and prolongs
Extending portion, described slide block is located on the medial wall of described extension.
10. centreless perforator according to claim 1 is it is characterised in that be provided with the lateral wall of described sleeve pipe end
Stage portion.
The 11. centreless perforators according to claim 1 or 10 are it is characterised in that described puncture tip and described sleeve pipe are equal
It is provided with sunk structure, produce when preventing both from mutually moving and interfere.
12. centreless perforators according to claim 1 are it is characterised in that arrange in the inner space of described puncture tip
There is inclined-plane, the edge on described inclined-plane is connected with the medial wall of described puncture tip, and described inclined-plane is towards described puncture tip
Direction of rotation is obliquely installed, and described inclined-plane is near the described other end of described sleeve pipe.
13. centreless perforators according to claim 12 it is characterised in that described inclined-plane is ellipse, or, described tiltedly
Face includes the first inclined-plane and the second inclined-plane, and described first inclined-plane and the second inclined-plane intersect, and the axis of described sleeve pipe passes through described the
Intersection between one inclined-plane and the second inclined-plane, described first inclined-plane and the second inclined-plane are half elliptic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610878916.6A CN106377302B (en) | 2016-10-08 | 2016-10-08 | Coreless puncture outfit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610878916.6A CN106377302B (en) | 2016-10-08 | 2016-10-08 | Coreless puncture outfit |
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| Publication Number | Publication Date |
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| CN106377302A true CN106377302A (en) | 2017-02-08 |
| CN106377302B CN106377302B (en) | 2020-02-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610878916.6A Active CN106377302B (en) | 2016-10-08 | 2016-10-08 | Coreless puncture outfit |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109646084A (en) * | 2017-10-12 | 2019-04-19 | 江苏风和医疗器材股份有限公司 | A kind of centreless puncture outfit |
| CN109662759A (en) * | 2017-10-16 | 2019-04-23 | 江苏风和医疗器材股份有限公司 | A kind of centreless puncture outfit |
| CN109965948A (en) * | 2017-12-28 | 2019-07-05 | 江苏风和医疗器材股份有限公司 | A kind of centreless puncture outfit |
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| CN109984819A (en) * | 2017-12-31 | 2019-07-09 | 江苏风和医疗器材股份有限公司 | A kind of assembly method of piercing element and casing |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109646084A (en) * | 2017-10-12 | 2019-04-19 | 江苏风和医疗器材股份有限公司 | A kind of centreless puncture outfit |
| CN109662759A (en) * | 2017-10-16 | 2019-04-23 | 江苏风和医疗器材股份有限公司 | A kind of centreless puncture outfit |
| CN109965948A (en) * | 2017-12-28 | 2019-07-05 | 江苏风和医疗器材股份有限公司 | A kind of centreless puncture outfit |
| CN109984821A (en) * | 2017-12-31 | 2019-07-09 | 江苏风和医疗器材股份有限公司 | A kind of sheath assembly |
| CN109984819A (en) * | 2017-12-31 | 2019-07-09 | 江苏风和医疗器材股份有限公司 | A kind of assembly method of piercing element and casing |
| CN109984821B (en) * | 2017-12-31 | 2021-08-06 | 江苏风和医疗器材股份有限公司 | Sleeve assembly |
| CN109984819B (en) * | 2017-12-31 | 2021-08-06 | 江苏风和医疗器材股份有限公司 | Method for assembling puncture element and sleeve |
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| CN106377302B (en) | 2020-02-21 |
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