CN107536625A - A kind of closed body fluid indwelling device is with taking liquid part - Google Patents
A kind of closed body fluid indwelling device is with taking liquid part Download PDFInfo
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- CN107536625A CN107536625A CN201610953371.0A CN201610953371A CN107536625A CN 107536625 A CN107536625 A CN 107536625A CN 201610953371 A CN201610953371 A CN 201610953371A CN 107536625 A CN107536625 A CN 107536625A
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Abstract
The present invention relates to the device of medicine equipment, more particularly, to collection of body fluids.A kind of closed body fluid indwelling device of the present invention is with taking liquid part, including annular sidewall first and annular sidewall second；The annular sidewall first has upper shed and under shed, and the annular sidewall second is straight tube-like；The annular sidewall second bottom is located in the under shed, and the bottom of annular sidewall first bottom and annular sidewall second has public side wall；The top of annular sidewall second is adjacent to the annular sidewall first top；A line of shortest length section perpendicular to annular sidewall second, 35% of the line of shortest length segment length no more than the nose segment length that the extended line of the line of shortest length section or the straight line parallel with the line of shortest length section are topmost crossed to form with the annular sidewall first inner edge are topmost connected from annular sidewall first.The present invention has that processing is simple, reduces production cost, and production efficiency is high, and can anti-backflow the advantages of.
Description
Technical field
The present invention relates to the device of medicine equipment, more particularly, to collection of body fluids.
Background technology
The closed body fluid indwelling device of prior art does not set exhaust passage, especially to small with taking the liquid part only to have flow-guiding channel
Aperture container irrigates liquid, and when taking liquid part with the sealing cooperation of container junction, the delay of liquid occurs often.Even if liquid part is taken to set
Exhaust passage is put, during drain, liquid still be present and can flow to exhaust outlet and block exhaust outlet causes liquid holdup to show
As.In addition, take liquid part to be provided with exhaust passage, but production and processing is more complicated, and cost is high, and production efficiency is relatively low, the speed of water conservancy diversion
It is not fast enough.
The content of the invention
It is an object of the invention to provide one kind to process simple, reduction production cost, and production efficiency is high, and water conservancy diversion is fast, and can
The closed body fluid indwelling device of anti-backflow is with taking liquid part.
What the goal of the invention of the present invention was realized in：
A kind of closed body fluid indwelling device is with taking liquid part, including annular sidewall first and annular sidewall second.The annular sidewall first encloses
Liquid-conveying ducts are formed, there is upper shed and under shed.The upper shed is located at the top of the liquid-conveying ducts, the under shed
Positioned at the bottom of the liquid-conveying ducts.Annular sidewall first includes annular sidewall first top, bottom sealing plate and annular sidewall first bottom.
The annular sidewall first top is located at the top of the bottom sealing plate, and the annular sidewall first bottom is located under the bottom sealing plate
Side.The annular sidewall first top is used to collect and gather liquid；The annular sidewall first bottom is used to be connected with liquid storage equipment；
Because the internal diameter of the internal diameter and the flow-guiding channel of annular sidewall bottom of the flow-guiding channel on annular sidewall first top is inconsistent, the bottom
One of shrouding effect is to be connected the liquid-conveying ducts positioned at the liquid-conveying ducts on annular sidewall first top with annular sidewall first bottom.Institute
It is straight tube-like to state annular sidewall second；The annular sidewall second bottom is located in the under shed, annular sidewall first bottom and annular
The bottom of side wall second has public side wall；The top of annular sidewall second is adjacent to the annular sidewall first top；From annular sidewall
First topmost connection one perpendicular to annular sidewall second or it is axially extending after annular sidewall second line of shortest length section, the line of shortest length
Segment length is no more than in the extended line of the line of shortest length section or the straight line parallel with the line of shortest length section and the annular sidewall first
The 35% of the nose segment length that edge is topmost crossed to form.It is preferred that the line of shortest length segment length is not more than the nose segment length
The 25% of degree.Preferred version is that the line of shortest length segment length is not more than the 20% of the nose segment length.Preferred plan is described
Line of shortest length segment length is not more than the 10% of the nose segment length.I.e. the top of annular sidewall second is not in the annular sidewall first
The center of the flow-guiding channel on top, and it is proximate to the side wall on annular sidewall first top.Annular sidewall first is topmost to annular sidewall
The line of shortest length section of second is：Company between straight line vertical range most short between annular sidewall second and annular sidewall first the top
Line after line, or annular sidewall second axially-extending between vertical range most short between annular sidewall first the top.
In such scheme, the public side wall refers to the public side wall for separating liquid-conveying ducts and exhaust passage, described
The wall thickness of public side wall is more than or equal to 0.3mm and is less than or equal to 5mm.The public side wall is downwardly extending cut-off body,
The groove of axial direction is provided with cut-off body, as described public side wall is provided with the groove of axial direction.The axial groove can
Extend the service life of production mould.The blind hole of axial direction can be also provided with the public side wall.The blind hole can reduce production
During public side wall washing shrinkage, so as to improve the yield rate of product.
In such scheme, the area that annular sidewall second encloses at the sectional area minimum for the exhaust passage to be formed is more than or equal to
3mm2And it is less than or equal to 15mm2.It is located at the vent channel cross-sectional area of exhaust passage most at the sectional area minimum of exhaust passage
The area at small place is more than or equal to 3mm2And it is less than or equal to 15mm2Closure can be effectively formed when taking liquid part to outwell wherein surplus liquid
Liquid film, avoid the liquid in test tube from being poured out from exhaust passage.
In such scheme, the annular sidewall first encloses to form flow-guiding channel, and the annular sidewall first top is used to collect
Liquid, the annular sidewall first bottom are used to connect, at the sectional area minimum of the flow-guiding channel of the annular sidewall first bottom
Area is more than or equal to 3mm2And it is less than or equal to 15mm2.It is located at the water conservancy diversion of annular sidewall first bottom at flow-guiding channel sectional area minimum
The liquid outlet of passage.Area at flow-guiding channel sectional area minimum is more than or equal to 3mm2And it is less than or equal to 15mm2Liquid part can taken to fall
When falling wherein surplus liquid, the liquid film of closure is effectively formed, avoids the liquid in test tube from being poured out from flow-guiding channel.
In such scheme, the lower guide that annular sidewall first is less than at the exhaust passage sectional area minimum of annular sidewall second circulates
At road sectional area minimum.Exhaust passage is provided with bending in the prior art, is not straight-tube shape, so general exhaust passage sectional area
The sectional area being more than or equal at minimum at flow-guiding channel sectional area minimum, when the full liquid of storage in the test tube with taking the cooperation of liquid part
When, still liquid is had, it is necessary to which the surplus liquid in liquid part will be taken will to take liquid part after outwelling in the flow-guiding channel for taking liquid part
Separated with test tube, it is bigger than at liquid-conveying ducts sectional area minimum at the sectional area minimum of exhaust passage, therefore the bending of exhaust passage can
The liquid in test tube is avoided to be poured out by exhaust passage.But the shortcomings that prior art, is, because bending be present in exhaust passage, so
During pouring liquid test tube, invisible spectro gas exit velocity is slow.The annular sidewall second of straight tube-like is used in the present invention
Enclose to form exhaust passage, so the speed that gas is discharged in test tube, further, since at the sectional area minimum of exhaust passage
At flow-guiding channel sectional area minimum, outwell take surplus liquid in liquid part when, the exhaust outlet in exhaust passage is easier shape
Into liquid film, so as to effectively prevent liquid from being poured out from exhaust passage.
In such scheme, the cross sections of at least part liquid-conveying ducts is ellipse, or at least part exhaust passage is transversal
Face is ellipse, or the cross section of at least part liquid-conveying ducts is that oval and at least part exhaust passage cross section is oval
Shape.The exhaust passage of liquid part junction, flow-guiding channel is taken to use cross section as ellipse, can be when not influenceing drain and exhaust, drop
Low wall thickness, reduce material usage.
In such scheme, the shape of annular sidewall first（Ignore drain mouth）Can rule, such as left and right, front and rear symmetrical,
Truncated cones shape etc. or irregular shape.
In such scheme, the bottom sealing plate is used to distinguish the annular sidewall first top and annular sidewall first bottom company
Connect；The bottom sealing plate is provided with guide face, and the guide face comprises at least an inclined-plane, and guide face can be strip, also may be used
It is other shapes, but not limited to this.Guide face can be it is horizontally disposed can also be angularly disposed, when angularly disposed, guide face
It is made up of two inclined-planes and two inclined-planes is connected in bottom and forms V shape.Under the low one end of the guide face and annular sidewall first
The flow-guiding channel in portion is connected.The guide face of the bottom sealing plate forms the diversion channel with potential difference with side.Diversion channel can be with
The good guide effect of liquid, and adjustable high flow rate, shorten the speed of perfusion.
It is described to take liquid part to be projected on downwards on plane Q in such scheme, outside the projection of the under shed of the annular sidewall first
Profile N is most nearby connected straight line with the projection outline M of the upper shed of the annular sidewall first, above and below projection outline N
Direction or left and right directions, the straight line at least form two length between the projection outline N and the projection outline M
The line segment first and line segment second not waited；The projection outline R of annular sidewall second is in the projection outline N, outside the projection
Profile N is projected within outline M positioned at described, and non-intersect.
Further, the line segment second is the straight line in companies of the projection outline N with the projection outline M most nearby
Line, line segment second are not more than the 45% of line segment first.
It is described to take liquid part to be projected on downwards on plane Q in such scheme, outside the projection of the under shed of the annular sidewall first
Profile N is most nearby connected straight line with the projection outline M of the upper shed of the annular sidewall first, above and below projection outline N
Direction or left and right directions, the straight line at least form three lines between the projection outline N and the projection outline M
Section, the projection outline N intersect with the projection outline M, occur simultaneously and are divided to the two of row and common factor P for P, line segment third and line segment fourth
Side, line segment penta are located in common factor P, the line segment third and line segment fourth or the length of line segment penta.The length of line segment fourth and line segment penta
Degree can be consistent, also can be inconsistent.
When line segment penta, which is the straight line, is projecting between outline N and the projection outline M line most nearby, line
Section penta is not more than the 45% of line segment third.Or line segment fourth is that the straight line is being projected between outline N and the projection outline M most
During line nearby, line segment fourth is not more than the 45% of line segment third.Or when line segment penta and line segment fourth equal length, exist for the straight line
When projecting between outline N and the projection outline M line most nearby, line segment penta, line segment fourth are no more than line segment third
45%。
In such scheme, the annular sidewall first top is used to collect liquid, and the annular sidewall first bottom is used for and examination
Pipe connection coordinates, the axis of the annular sidewall second and the diameter parallel of annular sidewall first bottom.
In such scheme, the axis on the annular sidewall first top and the axis of the annular sidewall first bottom are misaligned,
And axis of the axis of annular sidewall second away from the annular sidewall first top.
In such scheme, the flow-guiding channel sectional area of at least part annular sidewall first bottom.Wherein, flow-guiding channel is cut
Area is the sectional area of flow-guiding channel cross section.As annular sidewall first bottom flow-guiding channel in be provided with step first；The step
First be located at can be in the flow-guiding channel of the annular sidewall first bottom under it is narrow wide or low wide and up narrow.When taking liquid
When part topples over surplus liquid, the low wide and up narrow step first of the flow-guiding channel of the annular sidewall first bottom, test tube can be prevented
In liquid poured out from the flow-guiding channel for taking liquid part.Narrow upper width is set in the flow-guiding channel of the annular sidewall first bottom
Step, then be advantageous to the production of mould, improve yield rate.
In such scheme, the exhaust passage sectional area of the bottom of at least part annular sidewall second.Wherein, the annular
The exhaust passage sectional area of the bottom of side wall second refers to the sectional area of the cross section of exhaust passage.Can be the annular sidewall second
Bottom exhaust passage under it is narrow it is upper width formed with step second；Can also be that the exhaust passage of the bottom of annular sidewall second is cut
Area gradual reduction from top to bottom；When taking liquid part to topple over surplus liquid, liquid in test tube can be prevented from taking liquid part
Poured out in the exhaust passage.
The present invention has advantages below：
1st, because the exhaust passage using straight-tube shape, the present invention reduce mechanism compared with prior art mold structure, reduce mould
Preparation expense, the technology of the present invention cost than prior art mold expense reduce about 15%.
2nd, it is of the invention because exhaust passage use is kept to the side and straight tube-like structure, subtract in production molding time compared with prior art
A few step, process time shorten, and the technology of the present invention process time shortens about 10% than prior art.
3rd, the present invention can mold quantity on same mould（0.16 cubic metre）, can mold in same volume mould and compare in quantity
Compared with the present invention can open 6, and prior art can only open 4, and present invention die sinking quantity is than prior art increase by 50%.
4th, because annular sidewall second (exhaust passage) is close to annular sidewall first, reduce liquid and block exhaust passage exhaust outlet
Probability.
5th, the cross section of exhaust passage of the present invention is ellipse, and the cross section of liquid-conveying ducts is ellipse, is ensureing drain
And while smooth gas discharge, the dosage of material can be reduced.
6th, liquid part and test tube are taken using same volume, area of section is identical at inlet minimum, minimum of exhaust passage
Place's section hydrops is also identical, and the liquid outlet of 5 milliliters of speed per second of alignment carries out adopting liquid, surveys it and fills test tube required time, this hair
Bright to adopt the liquid time be 3 S, and it is 3.3 S-phase ratios that prior art, which adopts the liquid time, and the technology of the present invention is filled the time required to test tube than existing
Technology shortens about 10%.
Brief description of the drawings
Fig. 1 is the schematic top plan view that the exhaust passage of the present invention is located in annular sidewall first enclosed space.
Fig. 2 is the elevational schematic view that the exhaust passage of the present invention is located in annular sidewall first enclosed space.
Fig. 3 is the schematic diagram that the exhaust passage of the present invention is located in annular sidewall first enclosed space.
Fig. 4 be the under shed of the present invention projection outline N be located at the schematic diagram projected within outline M of upper shed-
1。
Fig. 5 be the under shed of the present invention projection outline N be located at the schematic diagram projected within outline M of upper shed-
2。
Fig. 6 is the schematic top plan view that the exhaust passage of the present invention is located at outside annular sidewall first enclosed space.
Fig. 7 is the elevational schematic view that the exhaust passage of the present invention is located at outside annular sidewall first enclosed space.
Fig. 8 is the schematic diagram that the exhaust passage of the present invention is located at outside annular sidewall first enclosed space.
Fig. 9 is the schematic diagram -1 that the projection outline N of under shed of the present invention intersects with the projection outline M of upper shed.
Figure 10 is the schematic diagram -2 that the projection outline N of under shed of the present invention intersects with the projection outline M of upper shed.
Figure 11 is that the exhaust passage of the present invention is located at the schematic diagram of the diversion channel in annular sidewall first enclosed space.
Figure 12 is that the exhaust passage of the present invention is located at the schematic diagram of the diversion channel outside annular sidewall first enclosed space.
Figure 13 is the schematic diagram -3 that the projection outline N of under shed of the present invention intersects with the projection outline M of upper shed.
Figure 14 is the schematic diagram -4 that the projection outline N of under shed of the present invention intersects with the projection outline M of upper shed.
Figure 15 is schematic diagrames -3 of the projection outline N of the under shed of the present invention in the projection outline M of upper shed.
Figure 16 is the schematic diagram -1 of the connecting portion of the present invention.
Figure 17 is the schematic diagram -2 of the connecting portion of the present invention.
Figure 18 is the schematic diagram -3 of the connecting portion of the present invention.
In figure：
1 annular sidewall first, 10 liquid-conveying ducts, 11 upper sheds, 12 under sheds, the upper surface of 13 annular sidewall first, 14 annular sidewalls
The lower surface of first, the projection outline N of 15 under sheds, the projection outline M of 16 upper sheds, 17 line segment first, 18 line segment second, 1a rings
Shape side wall first top, 1b annular sidewall first bottom, 19a inlets, 19b liquid outlets, 17a line segments third, 18a line segment fourths, 18b line segments
Penta, 17-1 line segment, 17-2 line segments, 18-1 line segments, 18-2 line segments,
2 annular sidewall second, 21 exhaust passages, 22 outlines are R, 23 gas outlets, 24 exhaust outlets,
3 cut-off bodies, 4 shutter bodies, 5 bottom sealing plates, 51 guide faces, 52 sides, 53 diversion channels, 54 blind holes, 55 grooves,
6 drain mouths, 7 connecting portions, 71 drain through holes, 72 exhaust through holes, 73 step first, 74 step second,
The top of 711 drain through holes, the bottom of 712 drain through holes,
The top of 721 exhaust through holes, the bottom of 722 exhaust through holes,
9 plane Q, P common factors,
The axis on A annular sidewall first top, the axis of B annular sidewall first bottom, the axis of C annular sidewall second, D drain through holes
Axis, E be vented through hole axis,
Public side wall wall thickness between the flow-guiding channel of M annular sidewall first bottom and the exhaust passage,
Vertical range of the d1 annular sidewalls second with annular sidewall first topmost most nearby,
The nose segment length that the extended line of d2 line of shortest length sections is topmost crossed to form with annular sidewall first inner edge,
The distance of the axis of d3 annular sidewall first and the axis of annular sidewall second.
Embodiment
The present invention is described further below in conjunction with the accompanying drawings, and following examples are only preference, is not to this hair
Bright scope is any limitation as, on the contrary, the purpose is to wish to cover various changes and have an equality is arranged in institute of the present invention
It is intended in the category of the scope of the claims applied.
Embodiment 1：1 to accompanying drawing 5, Figure 11, the present invention is described further below in conjunction with the accompanying drawings：
A kind of closed body fluid indwelling device is with taking liquid part, including annular sidewall first 1 and annular sidewall second 2.
Annular sidewall first 1 has upper shed 11 and under shed 12.Annular sidewall first 1 includes annular sidewall first top 1a, bottom
Shrouding 5 and annular sidewall first bottom 1b.Annular sidewall first 1 encloses to form flow-guiding channel 10.Liquid-conveying ducts 10 have inlet
19a and liquid outlet 19b.Annular sidewall first top 1a is used to collect liquid, and annular sidewall first bottom 1b is used to coordinate with test tube and connected
Connect, bottom sealing plate 5 is connected with annular sidewall first top 1a and annular sidewall first bottom 1b respectively.Annular sidewall first bottom 1b is to connect
Socket part 7.Bottom sealing plate 5 is provided with guide face 51, and guide face 51 is the inclined-plane of a strip, the low one end of guide face 51 and annular sidewall
The drain through hole 71 of first bottom 1b connecting portion 7 is connected.The guide face 51 of bottom sealing plate 5 forms leading with potential difference with side 52
Flow canal 53.
Annular sidewall second 2 encloses the exhaust passage 21 to be formed, and annular sidewall second 2 is straight tube-like.
The axis A on annular sidewall first top is parallel with the axis C of annular sidewall second.The axis A on annular sidewall first top with
The axis B of annular sidewall first bottom is misaligned, and the axis A on annular sidewall first top is parallel with the axis B of annular sidewall first bottom；
The axis C of annular sidewall second is parallel with the axis B of annular sidewall first bottom；And the axis C of annular sidewall second is away from annular sidewall
The axis A on first top.
Liquid part is taken to be projected on downwards on plane Q9.Annular sidewall second 2 is projected as outline R22 on plane Q9.Under
The projection outline N15 of opening and the projection outline M16 of upper shed most nearby connect straight line, and the straight line is under shed
Line segment first 17 and line segment 18 are formed on projection outline N15 and the projection outline M16 of upper shed, the length of line segment first 17 is much larger than
Line segment second 18.Line segment second 18 is line of shortest length section of the annular sidewall first topmost between the annular sidewall second of axially-extending.
The length of line segment second 18 is the vertical range d1 of annular sidewall second with annular sidewall first topmost most nearby.Annular
The top adjacent rings side wall first top 1a of side wall second, apart from annular sidewall first 1, most nearby vertical range d1 is annular sidewall second 2
5mm。
The nose segment length d2 that the extended line of line of shortest length section and annular sidewall first inner edge are topmost crossed to form is
100mm, d1 are the 5% of d2.
The projection outline N15 of under shed internal diameter is 13mm, external diameter 15mm.Line segment second 18 is line segment first 17
6.25%.Public side wall wall thickness M between the flow-guiding channel of annular sidewall first bottom and exhaust passage is 3mm.Under annular sidewall first
Public side wall between the flow-guiding channel in portion and exhaust passage is provided with two blind holes 54, and is downwardly extending in public side wall
Cut-off body 3 be provided with groove 55.
The projection outline N15 of under shed is located within the projection outline M16 of upper shed, and non-intersect.Outline R22
In the projection outline N15 of under shed.
Sectional area at the sectional area minimum of the flow-guiding channel 21 of connecting portion 7 is 10mm2, the sectional area of exhaust passage 21
Sectional area at minimum is 5mm2.It is located at annular sidewall first bottom 1b at flow-guiding channel sectional area minimum,
The cross section of annular sidewall first bottom 1b liquid-conveying ducts 10 is ellipse, and the cross section of exhaust passage 21 is ellipse.
Understood with reference to Figure 15,
Liquid part is taken to be projected on downwards on plane Q9.Annular sidewall second 2 is projected as outline R22 on plane Q9.In under shed
Projection outline N15 and the projection outline M16 of upper shed most nearby connect straight line；
In the above-below direction of annular sidewall second 2：The straight line is in the projection outline N15 of under shed and the projection outline of upper shed
Line segment 17-2 and line segment 18-2 are formed on M16；
On the left and right directions of annular sidewall second 2, the straight line is in the projection outline N15 of under shed and the projection foreign steamer of upper shed
Line segment 17-1 and line segment 18-1 are formed on wide M16；
Wherein, line segment 18-1, line segment 17-2 are identical with line segment 18-2 length, are annular sidewall second 2 apart from annular sidewall first 1
Vertical range d1 most nearby；Line segment 17-1 length is more than line segment 18-1 length, line segment 17-2 length and line segment 18-2 length.
The top adjacent rings side wall first top of annular sidewall second, annular sidewall second 2 apart from annular sidewall first 1 topmost most
Nearby vertical range d1 is 8mm.
In annular sidewall second 2 topmost straight line, the extended line of line of shortest length section are most nearby connected apart from annular sidewall first 1
The nose segment length d2 being topmost crossed to form with annular sidewall first inner edge is 120mm, and d1 is the 6.67% of d2.
Line segment 18-1 length is the 7.84% of line segment 17-1 length.The flow-guiding channel of annular sidewall first bottom and exhaust passage
Between public side wall wall thickness M be 3mm.
In above-described embodiment, wherein, drain through hole 71 can be as shown in figure 16：The interior of drain through hole 71 is provided with step first
73, the cross section sectional area of top 711 of drain through hole is more than the cross section sectional area of bottom 712 of drain through hole.Exhaust is passed through
Through hole 72 is truncated cones shape, and the cross section sectional area for being vented through hole is gradually reduced from top to bottom.The bottom of drain through hole
712 cross section sectional areas are more than sectional area at the cross section minimum of exhaust through hole 72.
Drain through hole 71 also can be as shown in figure 17：The interior of drain through hole 71 is provided with step first 73, drain through hole
The cross section sectional area of bottom 712 is more than the cross section sectional area of top 711 of drain through hole.Exhaust through hole 72 is truncated cones
Shape, the cross section sectional area for being vented through hole are gradually reduced from top to bottom.The cross section sectional area of top 711 of drain through hole is big
The sectional area at the cross section minimum of exhaust through hole 72.
Drain through hole 71 also can be as shown in figure 18：The interior of drain through hole 71 is provided with step first 73, drain through hole
The cross section sectional area of bottom 712 is more than the cross section sectional area of top 711 of drain through hole.Step is provided with exhaust through hole 72
Second 74, the cross section sectional area for being vented the top 721 of through hole are more than the cross section sectional area for the bottom 722 for being vented through hole.
The cross section sectional area of top 711 of drain through hole is more than the cross section sectional area of the bottom 722 of exhaust through hole.
Embodiment 2：6 to accompanying drawing 10, Figure 12, the present invention is described further below in conjunction with the accompanying drawings：
A kind of closed body fluid indwelling device is with taking liquid part, including annular sidewall first 1 and annular sidewall second 2.
Annular sidewall first 1 has upper shed 11 and under shed 12.Annular sidewall first 1 includes annular sidewall first top 1a, bottom
Shrouding 5 and annular sidewall first bottom 1b.Annular sidewall first 1 encloses to form flow-guiding channel 10.Liquid-conveying ducts 10 have inlet
19a and liquid outlet 19b.Annular sidewall first top 1a is used to collect liquid, and annular sidewall first bottom 1b is used to coordinate with test tube and connected
Connect, bottom sealing plate 5 is connected with annular sidewall first top 1a and annular sidewall first bottom 1b respectively.Annular sidewall first bottom 1b is to connect
Socket part 7.Bottom sealing plate 5 is provided with guide face 51, and guide face 51 is the inclined-plane of a strip, the low one end of guide face 51 and annular side
The drain through hole 71 of wall first bottom 1b connecting portion 7 is connected.The guide face 51 of bottom sealing plate 5 is formed with potential difference with side 52
Diversion channel 53.
Annular sidewall second 2 encloses the exhaust passage 21 to be formed, and annular sidewall second 2 is straight tube-like.
The axis A on annular sidewall first top is parallel with the axis C of annular sidewall second.The axis A on annular sidewall first top with
The axis B of annular sidewall first bottom is misaligned, and the axis A on annular sidewall first top is parallel with the axis B of annular sidewall first bottom；
The axis C of annular sidewall second is parallel with the axis B of annular sidewall first bottom；And the axis C of annular sidewall second is away from annular sidewall
The axis A on first top.
Liquid part is taken to be projected on downwards on plane Q9.The projection outline N15 of the under shed and projection outline M16 of upper shed
It is intersecting, occur simultaneously for P.Annular sidewall second 2 is projected as outline R22 on plane Q9.Outline R22 is located at the projection of under shed
In outline N15.
Straight line is most nearby connected in the projection outline N15 of under shed and the projection outline M16 of upper shed, this is straight
Line forms the 17a of line segment third, line segment fourth 18a and line on the projection outline N15 of under shed and the projection outline M16 of upper shed
Penta the third 17a of 18b. line segments of section and line segment fourth 18a line segments are respectively in common factor P both sides.The 18b of line segment penta is located in common factor P.
The third 17a of line segment length is much larger than the 18b of line segment penta, line segment fourth 18a.The 18b of line segment penta length is more than line segment fourth 18a's
Length.Line of shortest length section is line segment fourth 18a.
Annular sidewall second 2 is d1 apart from the vertical range most nearby of annular sidewall first 1, and d1 is line segment fourth 18a length
Degree.Annular sidewall second 2 is 6mm apart from the most nearby vertical range d1 of annular sidewall first 1.
The nose segment length that the extended line of line of shortest length section is topmost crossed to form with annular sidewall first inner edge is that d2 is
80mm, d1 are the 7.5% of d2.
The projection outline N15 of under shed internal diameter is 13mm, external diameter 15mm.Line segment second 18 is line segment first 17
10.17%.Public side wall wall thickness M between the flow-guiding channel of annular sidewall first bottom and exhaust passage is 3.5mm.
Sectional area at the sectional area minimum of the flow-guiding channel 21 of connecting portion 7 is 10mm2, the sectional area of exhaust passage 21
Sectional area at minimum is 5mm2.It is located at annular sidewall first bottom 1b at flow-guiding channel sectional area minimum.
The cross section of annular sidewall first bottom 1b liquid-conveying ducts 10 is ellipse, and the cross section of exhaust passage 21 is ellipse
Shape.
Embodiment 3：Below in conjunction with the accompanying drawings 6, the present invention is described further by Fig. 7, Fig. 8, Figure 12, Figure 13, Figure 14：
A kind of closed body fluid indwelling device is with taking liquid part, including annular sidewall first 1 and annular sidewall second 2.
Annular sidewall first 1 has upper shed 11 and under shed 12.Annular sidewall first 1 includes annular sidewall first top 1a, bottom
Shrouding 5 and annular sidewall first bottom 1b.Annular sidewall first 1 encloses to form flow-guiding channel 10.Liquid-conveying ducts 10 have inlet
19a and liquid outlet 19b.Annular sidewall first top 1a is used to collect liquid, and annular sidewall first bottom 1b is used to coordinate with test tube and connected
Connect, bottom sealing plate 5 is connected with annular sidewall first top 1a and annular sidewall first bottom 1b respectively.Annular sidewall first bottom 1b is to connect
Socket part 7.Bottom sealing plate 5 is provided with guide face 51, and guide face 51 is the inclined-plane of a strip, the low one end of guide face 51 and annular side
The drain through hole 71 of wall first bottom 1b connecting portion 7 is connected.The guide face 51 of bottom sealing plate 5 is formed with potential difference with side 52
Diversion channel 53.
Annular sidewall second 2 encloses the exhaust passage 21 to be formed, and annular sidewall second 2 is straight tube-like.
The axis A on annular sidewall first top is parallel with the axis C of annular sidewall second.The axis A on annular sidewall first top with
The axis B of annular sidewall first bottom is misaligned, and the axis A on annular sidewall first top is parallel with the axis B of annular sidewall first bottom；
The axis C of annular sidewall second is parallel with the axis B of annular sidewall first bottom；And the axis C of annular sidewall second is away from annular sidewall
The axis A on first top.
Liquid part is taken to be projected on downwards on plane Q9.The projection outline N15 of the under shed and projection outline M16 of upper shed
It is intersecting, occur simultaneously for P.Annular sidewall second 2 is projected as outline R22 on plane Q9.Outline R22 is located at the projection of under shed
In outline N15.
Straight line is most nearby connected in the projection outline N15 of under shed and the projection outline M16 of upper shed, this is straight
Line forms the 17a of line segment third, line segment fourth 18a and line on the projection outline N15 of under shed and the projection outline M16 of upper shed
Penta the third 17a of 18b. line segments of section and line segment fourth 18a line segments are respectively in common factor P both sides.The 18b of line segment penta is located in common factor P.
Line segment fourth 18a length is more than the 18b of line segment penta length.The third 17a of line segment length is much larger than the 18b of line segment penta.Line segment
Penta 18b is line of shortest length section.
Annular sidewall second 2 is d1 apart from the vertical range most nearby of annular sidewall first 1, and d1 is the 18b of line segment penta length
Degree.Annular sidewall second 2 is 6mm apart from the most nearby vertical range d1 of annular sidewall first 1.
The nose segment length that the extended line of line of shortest length section is topmost crossed to form with annular sidewall first inner edge is that d2 is
80mm, d1 are the 7.5% of d2.
The projection outline N15 of under shed internal diameter is 13mm, external diameter 15mm.Line segment second 18 is line segment first 17
10.17%.Public side wall wall thickness M between the flow-guiding channel of annular sidewall first bottom and exhaust passage is 3.5mm.
Sectional area at the sectional area minimum of the flow-guiding channel 21 of connecting portion 7 is 10mm2, the sectional area of exhaust passage 21
Sectional area at minimum is 5mm2.It is located at annular sidewall first bottom 1b at flow-guiding channel sectional area minimum.
The cross section of annular sidewall first bottom 1b liquid-conveying ducts 10 is ellipse, and the cross section of exhaust passage 21 is ellipse
Shape.
Claims (10)
1. a kind of closed body fluid indwelling device is with taking liquid part, including annular sidewall first and annular sidewall second；Annular sidewall first includes ring
Shape side wall first top, bottom sealing plate and annular sidewall first bottom；The annular sidewall first top is located at the top of the bottom sealing plate, institute
State the lower section that annular sidewall first bottom is located at the bottom sealing plate；The annular sidewall first has upper shed and under shed, its feature
It is：The annular sidewall second is straight tube-like；The annular sidewall second bottom is located in the under shed, annular sidewall first bottom
There is public side wall with the bottom of annular sidewall second；The top of annular sidewall second is adjacent to the annular sidewall first top；From ring
Shape side wall first topmost connection one perpendicular to annular sidewall second or it is axially extending after annular sidewall second line of shortest length section, it is described
Line of shortest length segment length is no more than the extended line of the line of shortest length section or the straight line parallel with the line of shortest length section and the annular side
The 35% of the nose segment length that wall first inner edge is topmost crossed to form.
2. a kind of closed body fluid indwelling device according to claim 1 is with taking liquid part, it is characterised in that：The line of shortest length segment length
25% of degree no more than the nose segment length.
3. a kind of closed body fluid indwelling device according to claim 2 is with taking liquid part, it is characterised in that：The public side wall
Wall thickness be more than or equal to 0.3mm and be less than or equal to 5mm.
4. a kind of closed body fluid indwelling device according to claim 3 is with taking liquid part, it is characterised in that：The public side wall
It is provided with the groove of axial direction.
5. a kind of closed body fluid indwelling device according to claim 3 is with taking liquid part, it is characterised in that：The public side wall
It is provided with the blind hole of axial direction.
6. a kind of closed body fluid indwelling device according to claim 1 is with taking liquid part, it is characterised in that：Annular sidewall second is formed
Area at the sectional area minimum of exhaust passage is more than or equal to 3mm2And it is less than or equal to 15mm2 。
7. a kind of closed body fluid indwelling device according to claim 1 is with taking liquid part, it is characterised in that：Annular sidewall first bottom
Flow-guiding channel sectional area minimum at area be more than or equal to 3mm2And it is less than or equal to 15mm2 。
8. a kind of closed body fluid indwelling device according to claim 1 is with taking liquid part, it is characterised in that：Positioned at annular sidewall second
The minimum place of exhaust passage sectional area it is minimum less than the bottom flow-guiding channel sectional area of annular sidewall first at.
9. a kind of closed body fluid indwelling device according to claim 2 is with taking liquid part, it is characterised in that：Positioned at annular sidewall second
The minimum place of exhaust passage sectional area it is minimum less than the bottom flow-guiding channel sectional area of annular sidewall first at.
10. a kind of closed body fluid indwelling device according to claim 3 is with taking liquid part, it is characterised in that：Positioned at annular sidewall
It is less than at the exhaust passage sectional area minimum of second at the bottom flow-guiding channel sectional area minimum of annular sidewall first.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610472556 | 2016-06-24 | ||
| CN201610472556X | 2016-06-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107536625A true CN107536625A (en) | 2018-01-05 |
Family
ID=60966117
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610953993.3A Withdrawn CN107536626A (en) | 2016-06-24 | 2016-11-03 | A kind of closed body fluid indwelling device is with taking liquid part |
| CN201610953371.0A Pending CN107536625A (en) | 2016-06-24 | 2016-11-03 | A kind of closed body fluid indwelling device is with taking liquid part |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610953993.3A Withdrawn CN107536626A (en) | 2016-06-24 | 2016-11-03 | A kind of closed body fluid indwelling device is with taking liquid part |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN107536626A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107536626A (en) * | 2016-06-24 | 2018-01-05 | 无锡市凯顺医疗器械制造有限公司 | A kind of closed body fluid indwelling device is with taking liquid part |
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| Publication number | Publication date |
|---|---|
| CN107536626A (en) | 2018-01-05 |
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