CN205460111U - Blood purification device - Google Patents
Blood purification device Download PDFInfo
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- CN205460111U CN205460111U CN201520683172.3U CN201520683172U CN205460111U CN 205460111 U CN205460111 U CN 205460111U CN 201520683172 U CN201520683172 U CN 201520683172U CN 205460111 U CN205460111 U CN 205460111U
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- filter screen
- rack
- blood
- purifying blood
- installation portion
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Abstract
The utility model discloses a BLOOD PURIFICATION DEVICE, BLOOD PURIFICATION DEVICE includes the barrel and is located the blood mouth of barrel axial both ends side respectively and fixes the two sets of filter screens on the blood mouth is close to the filter screen installation department of barrel one end respectively, the filter screen includes rack and net piece, wherein is the regional diameter of effective filtration of net piece 6 20mm. The utility model discloses is the filter screen that BLOOD PURIFICATION DEVICE had through adopting diameter 6 20mm's the regional net piece of effective filtration, because the effective filtration area of filter screen reduces, interior rate of flow of fluid through the filter screen was accelerated the unit interval, can produce higher fluid shearing speed in the mesh of net piece, the gas among the messenger BLOOD PURIFICATION DEVICE passes through the pressure increase of unit area filter screen to make gaseous faster discharge filter screen, and then inside the discharge BLOOD PURIFICATION DEVICE. Thereby shortened exhaustion time, improved carminative effect.
Description
Technical field
This utility model relates to blood purification consumptive material field, a kind of apparatus for purifying blood with filter screen.
Background technology
Along with progress and the development of blood perfusion technique, its range is increasingly wider, and treatment category has been directed in medicine
Multiple fields such as poison, uremia, kidney disease, disease of immune system.Along with the raising of people's living standard and health perception
Increasing, hemoperfusion, as a kind of disease treatment mode, is widely accepted, and annual usage amount is in the trend increased.
As being exclusively used in the medical apparatus and instruments of hemoperfusion, apparatus for purifying blood is built-in with the adsorbent purifying blood.Facing
During bed uses, apparatus for purifying blood is series at extracorporeal circulation of blood pipeline, when blood is through perfusion device, and absorption therein
Morbid substance in agent absorption blood, thus reach to treat the purpose of disease.
Chinese utility model patent CN200820047979 discloses a kind of disposable blood perfusion device, this perfusion
The component parts of device includes a cylinder and the two set closing devices for the axial two-port of sealed cylinder respectively.In cylinder
Portion, can accommodate various types of adsorbents, such as acticarbon, resin sorbent etc. according to different therapeutic purposes.Often
Set closing device is made up of filter screen, sealing plain cushion, end cap, locking nut and block etc..Wherein, cylinder, end cap, locking nut and
Block all uses medical Merlon to produce with Shooting Technique as raw material；Seal plain cushion and the sealing being fixed in block is soft
Pad all uses silicone rubber to produce with Shooting Technique as raw material；Filter screen is typically to use nylon yarn as raw material with weaving manner
Produce.Above-mentioned patent disclosure of that is expressly incorporated herein by reference.
From above-mentioned patent disclosure of that, the inner barrel of the blood perfusion device of prior art placed for only
Changing the adsorbent of blood, when the filter screen set by cylinder two ends can prevent from treating, adsorbent flows out perfusion device entrance human body and increases
Operative risk.At present, the filter screen of apparatus for purifying blood is generally positioned at the position that cylinder couples with end cap, for ensureing safe handling
Perfusion device, filter screen needs good hydrophilic property and mesh little, but but there is the problems such as filter screen exhaust problem, process complexity, time length.
Utility model content
A technical problem to be solved in the utility model is the drawbacks described above for prior art, it is provided that Yi Zhongpai
The gas time is short and the apparatus for purifying blood of good exhaust effect.
In order to solve above-mentioned technical problem, this utility model provides a kind of apparatus for purifying blood, including cylinder and difference
It is positioned at the blood mouth of the axial both end sides of described cylinder, the most also includes the filter screen peace being separately fixed at described blood mouth near cylinder one end
Two groups of filter screens in dress portion, described filter screen includes rack and mesh sheet, a diameter of 6-of effective filtration zone of wherein said mesh sheet
20mm。
The filter screen that this utility model apparatus for purifying blood is had is by using the diameter 6-20mm's of effective filtration zone
The effectively mesh sheet of filtration zone, owing to the effective filtration area of filter screen reduces, is added by the rate of flow of fluid of filter screen in the unit interval
Hurry up, higher fluid shear rate can be produced in the mesh of mesh sheet, make the gas in apparatus for purifying blood pass through unit plane
The pressure of long-pending filter screen increases, so that gas discharges filter screen faster, and then discharges inside apparatus for purifying blood.Thus shorten
Evacuation time, improves the effect of aerofluxus.
In one embodiment, the outer wall of described rack is provided with external screw thread or L-shaped locating slot.
In one embodiment, the internal chamber wall of described rack is provided with installing hole.
In one embodiment, the internal chamber wall of described rack is provided with support slot, and described support slot coordinates with support bar
Realize the location of filter screen.
In one embodiment, axially extending along rack of the first paragraph of described locating slot, second segment is at rack outer wall
Axially middle part extend along the circumferencial direction of rack, and the tail end of first paragraph is connected with the head end of second segment.
In one embodiment, described mesh sheet is adhesively fixed in the upper end of described rack, and this set is more beneficial for net
The bonding operation of sheet.
In one embodiment, described filter screen installation portion be formed on the end cap that the end with described cylinder is connected or
It is integrally formed in the end of described cylinder.
In one embodiment, described filter screen is by the L-shaped locating slot on its rack outer wall and described filter screen installation portion
On spacing preiection match and be fixed on described filter screen installation portion.
In one embodiment, described filter screen is fixed on the installation of described filter screen in the way of interference fit or threaded engagement
Portion.
In one embodiment, connected by support bar between described two groups of filter screens, the inner chamber of described filter screen installation portion
The outer wall of wall and described rack is shiny surface, and described outer wall fits tightly with described internal chamber wall, the axial inner ends of described rack
Face is provided with support slot, and the end of described support bar coordinates with described support slot grafting, so that described filter screen is fixed on described
Filter screen installation portion.
Accompanying drawing explanation
Fig. 1 is the appearance assumption diagram of the embodiment one of this utility model apparatus for purifying blood.
Fig. 2 is the longitudinal sectional view of apparatus for purifying blood shown in Fig. 1.
Fig. 3 is the upward view of the filter screen in the middle of apparatus for purifying blood shown in Fig. 1.
Fig. 4 is the A-A sectional view of Fig. 3.
Fig. 5 is the top view of the filter screen in the middle of apparatus for purifying blood shown in Fig. 1.
Fig. 6 is the side view of the filter screen in the middle of apparatus for purifying blood shown in Fig. 1.
Fig. 7 is the partial sectional view of the embodiment two of this utility model apparatus for purifying blood.
Fig. 8 is the top view of the filter screen in the middle of apparatus for purifying blood shown in Fig. 7.
Fig. 9 is the upward view of the filter screen in the middle of apparatus for purifying blood shown in Fig. 7.
Figure 10 is the B-B sectional view of Fig. 9.
Figure 11 is the partial sectional view of the embodiment three of this utility model apparatus for purifying blood.
Figure 12 is the upward view of the filter screen in the middle of apparatus for purifying blood shown in Figure 11.
Figure 13 is the C-C sectional view of Figure 12.
Figure 14 is the longitudinal sectional view of the embodiment four of this utility model apparatus for purifying blood.
Figure 15 is the structural representation of the filter screen in the middle of apparatus for purifying blood shown in Figure 14 and support bar.
Figure 16 is the upward view of the filter screen in the middle of apparatus for purifying blood shown in Figure 14.
Figure 17 is the D-D sectional view of Figure 16.
Detailed description of the invention
Of the present utility model various embodiment is described more fully below, and embodiment therein is the most also
It is described below.Although this utility model will illustrate in conjunction with illustrative embodiments, it should be understood that this utility model is not
It is limited to these illustrative embodiments.On the contrary, this utility model not only includes these embodiments, but also includes various change
Shape, improvement.
Embodiment one
As depicted in figs. 1 and 2, apparatus for purifying blood of the present utility model is single use blood perfusion device, disposable
The inner containment such as plasma bilirubin adsorber, single use Endotoxin adsorption device, DNA immunization adsorber are used to have adsorbent
Apparatus for purifying blood.Apparatus for purifying blood in the present embodiment is single use blood perfusion device, and it includes cylinder 18, cylinder
Various types of adsorbents can be accommodated in 18 according to different therapeutic purposes, such as acticarbon, resin sorbent, natural
Macromolecule carrier adsorbent etc..The lower end of cylinder 18 is female Luer and Luer lock joint, block 11 and sealing gasket 12 enter
Row seals.The upper end of cylinder 18 is carried out press seal by sealing ring 17, end cap 13 and nut 16, and wherein, end cap 13 is by block 11 and close
Packing 12 seals, and nut 16 is connected cooperation with cylinder 18 end with screw thread or click on fashion, and end cap 13 is internal to be gone out near it
Porch is provided with filter screen 14.Block 11 can be hard plastic part, makees for example with medical polycarbonate or polypropylene PP
Producing with Shooting Technique for raw material, sealing gasket 12 and sealing ring 17 can use silicone rubber raw with Shooting Technique as raw material
Produce.
End cap 13 in the present embodiment is split type end cap, and end cap 13 and cylinder 18 end first carry out pre-determined bit, then pass through
Nut 16 realizes cylinder 18 be connected with the fixing of end cap 13 with the screw thread couple of cylinder 18 end.In other embodiments, on
Stating end cap can also be integrally provided with coupled threads on integral type end cap, i.e. end cap, and barrel end also is provided with coupled threads,
End cap is fixing by screw thread couple with cylinder to be connected.
End cap 13 includes blood mouth 131, filter screen installation portion 132 and guide portion 133 etc., and filter screen installation portion 132 is positioned at blood mouth 131
And between guide portion 133, filter screen 14 is fixedly mounted on this filter screen installation portion 132.
As shown in Figures 3 to 6, filter screen 14 includes rack 142 and mesh sheet 141, rack 142 in the cylinder of inner chamber hollow,
Mesh sheet 141 is preferably fixed on the upper end of rack 142 with bonding mode, and this set is more beneficial for the bonding operation of mesh sheet 141.
In the present embodiment, the diameter of effective filtration zone of mesh sheet 141 is preferably 11mm, and the outer wall of rack 142 is provided with L-shaped
Locating slot, axially extending along rack 142 of the first paragraph 143 of this locating slot, second segment 144 is axial rack 142 outer wall
Middle part extends along the circumferencial direction of rack 142.The head end of the first paragraph 143 of this locating slot is to be positioned at the upper surface of rack 142 (i.e.
Be bonded with the surface of mesh sheet 141) opening, the tail end of first paragraph 143 is connected with the head end of second segment 144, second segment 144
Tail end is blind end.
The inner chamber 145 of rack 142 be provided with guide surface 146 away from mesh sheet 141 one end, it is simple to guide blood enter rack
142 flow out perfusion device by mesh sheet 141, and rack internal chamber wall is provided with several installing holes 1410, for coordinating with fixture so that
Filter screen 14 is installed on perfusion device.Filter screen installation portion 132 is provided with spacing with what " L " the shape locating slot on rack 142 coordinated
Protruding 136, by " L " shape locating slot and coordinating of spacing preiection 136, filter screen 14 is fixed on filter screen installation portion 132.
In the present embodiment, filter screen is arranged on end cap, compared with prior art, reduces effective filtration zone face of filter screen
Long-pending.Owing to filter screen effective filtration zone area reduces, accelerated by the rate of flow of fluid of filter screen in the unit interval, can be in mesh sheet
Produce higher fluid shear rate in mesh, make the gas in apparatus for purifying blood be increased by the pressure of unit are filter screen
Greatly, so that gas discharges filter screen faster, and then discharge inside perfusion device, thus shorten evacuation time, improve aerofluxus
Effect.
Embodiment two
As shown in Figure 7 to 10, the apparatus for purifying blood of the present embodiment can be the absorption of single use plasma bilirubin
Device, its adsorbent filled is resin anion (R.A.) adsorbent, and the structure of adsorber is essentially identical with embodiment one, and difference mainly exists
Structure and the mounting means of filter screen in filter screen.The filter screen 14 of the present embodiment is fixed on the blood mouth 131 of end cap 13 equally and draws
Lead on the filter screen installation portion 132 between portion 133.The a diameter of 6mm of mesh sheet 141 of this filter screen 14, the internal chamber wall of filter screen installation portion 132
134 is shiny surface, and the outer wall 147 of the rack 142 of filter screen 14 is also smooth surface, and the outer wall 147 of rack 142 is installed with filter screen
The internal chamber wall 134 in portion 132 is fixed by interference fit.The rack 142 of the present embodiment filter screen 14 is by meeting net rack installation
Demand has certain elastic material simultaneously and makes.
Embodiment three
As shown in Figure 11 to Figure 13, the apparatus for purifying blood of the present embodiment is integral type single use blood perfusion device,
The i.e. blood mouth 131 of perfusion device is formed directly into one end of cylinder, and need not be separately provided end cap, and this blood mouth 131 is directly and block
11 couple and realize the sealing to perfusion device.
On cylinder, the one end near blood mouth 131 is provided with filter screen installation portion 132, and the internal perisporium of this filter screen installation portion 132 sets
There is female thread 135.In the present embodiment, the structure of filter screen 14 is essentially identical with embodiment one, and difference essentially consists in having of mesh sheet 141
A diameter of 20mm of effect filtration zone, the outer wall of rack 142 is provided with external screw thread 148.External screw thread on the outer wall of rack 142
148 couple with the female thread 135 on filter screen installation portion 132, thus are fixedly mounted on filter screen installation portion 132 by filter screen 14.This
Without locating slot on the outer wall of filter screen 14 in embodiment, also without the spacing preiection coordinated with locating slot on filter screen installation portion.
Embodiment four
As shown in Figure 14 to Figure 17, the apparatus for purifying blood of the present embodiment is DNA immunization adsorption column, the filter at its cylinder two ends
Being connected by support bar 19 between net 14, filter screen 14 is fixed on filter screen installation portion 132, and this filter screen 14 includes rack 142 equally
With mesh sheet 141, a diameter of 15mm of effective filtration zone of mesh sheet 141.Wherein, the internal chamber wall 134 of filter screen installation portion 132 is light
Sliding surface, the outer wall 147 of the rack 142 of filter screen 14 is also smooth surface, and the outer wall 147 of rack 142 is interior with filter screen installation portion 132
Cavity wall 134 fits tightly, and the axial inner ends face of rack 142 is provided with support slot 149, and the end of support bar 19 is inhaled with DNA immunization
Support slot 149 grafting on the rack 142 of the filter screen 14 at attached column two ends coordinates, thus filter screen 14 is fixed on DNA immunization absorption
The inside of post.Additionally, support bar 19 connects also by bracing piece and strengthens the intensity of support bar, it is to avoid support bar occurs elasticity
Deformation, it is ensured that the installation site of filter screen is fixed, it is ensured that the filter screen effective barrier effect to adsorbent.
The filter screen that this utility model apparatus for purifying blood is had is by using effective filtration zone of diameter 6-20mm
Mesh sheet, owing to the effective filtration area of filter screen reduces, is accelerated by the rate of flow of fluid of filter screen in the unit interval, can be in mesh sheet
Produce higher fluid shear rate in mesh, make the gas in apparatus for purifying blood be increased by the pressure of unit are filter screen
Greatly, so that gas discharges filter screen faster, and then discharge inside perfusion device.Thus shorten evacuation time, improve aerofluxus
Effect.
Above-described is only preferred implementation of the present utility model, it is noted that for the ordinary skill of this area
For personnel, on the premise of without departing from inventive concept of the present utility model, it is also possible to make some deformation and improvement and do not surpass
Go out protection domain of the present utility model.
Claims (9)
1. apparatus for purifying blood, including cylinder and the blood mouth laying respectively at the axial both end sides of described cylinder, it is characterised in that also wrap
Including the two groups of filter screens being separately fixed at described blood mouth on the filter screen installation portion of cylinder one end, described filter screen includes rack and net
Sheet, a diameter of 6-20mm of effective filtration zone of described mesh sheet.
Apparatus for purifying blood the most according to claim 1, it is characterised in that: the outer wall of described rack be provided with external screw thread or
Person's L-shaped locating slot.
Apparatus for purifying blood the most according to claim 1, it is characterised in that: the internal chamber wall of described rack is provided with installation
Hole.
Apparatus for purifying blood the most according to claim 1, it is characterised in that: the axial inner ends face of described rack is provided with can
The support slot realizing described filter screen location is coordinated with support bar.
Apparatus for purifying blood the most according to claim 2, it is characterised in that: the first paragraph of described locating slot is along the axle of rack
To extension, second segment extends along the circumferencial direction of rack at the axially middle part of rack outer wall, and the tail end of first paragraph and second segment
Head end be connected.
Apparatus for purifying blood the most according to claim 1, it is characterised in that: described filter screen installation portion is formed at and described cylinder
On the end cap that the end of body connects or be integrally formed in the end of described cylinder.
Apparatus for purifying blood the most according to claim 1, it is characterised in that: described filter screen is by the L on its rack outer wall
Shape locating slot matches with the spacing preiection on described filter screen installation portion and is fixed on described filter screen installation portion.
Apparatus for purifying blood the most according to claim 1, it is characterised in that: described filter screen is with interference fit or threaded engagement
Mode be fixed on described filter screen installation portion.
Apparatus for purifying blood the most according to claim 1, it is characterised in that: between described two groups of filter screens by support bar even
Connecing, the internal chamber wall of described filter screen installation portion and the outer wall of described rack are shiny surface, and described outer wall is tight with described internal chamber wall
Laminating, the axial inner ends face of described rack is provided with support slot, and the end of described support bar coordinates with described support slot grafting, from
And make described filter screen be fixed on described filter screen installation portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520683172.3U CN205460111U (en) | 2015-09-02 | 2015-09-02 | Blood purification device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520683172.3U CN205460111U (en) | 2015-09-02 | 2015-09-02 | Blood purification device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205460111U true CN205460111U (en) | 2016-08-17 |
Family
ID=56660388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520683172.3U Active CN205460111U (en) | 2015-09-02 | 2015-09-02 | Blood purification device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205460111U (en) |
-
2015
- 2015-09-02 CN CN201520683172.3U patent/CN205460111U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 519080 Zhuhai hi tech Zone No. six road, Guangdong Province, 98 Patentee after: Jianfan Biotechnology Group Co., Ltd. Address before: 519080 Zhuhai hi tech Zone No. six road, Guangdong Province, 98 Patentee before: Jafron Biomedical Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder |