CN204951774U - End cover and have blood purifying device of this end cover - Google Patents
End cover and have blood purifying device of this end cover Download PDFInfo
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- CN204951774U CN204951774U CN201520682963.4U CN201520682963U CN204951774U CN 204951774 U CN204951774 U CN 204951774U CN 201520682963 U CN201520682963 U CN 201520682963U CN 204951774 U CN204951774 U CN 204951774U
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- end cap
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- filter screen
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Abstract
The utility model provides a blood purifying device's end cover and have the blood purifying device of this kind of end cover, this blood purifying device include the barrel with set up in the end cover of the axial tip of barrel, the end cover is including the lid and the blood mouth that fuse, the lid is the loudspeaker form, the blood mouth is close to the less one end of diameter of this loudspeaker form lid, the tapering of loudspeaker form lid is 25 -45. The utility model discloses consequently blood purifying device's end cover accords with blood blending owing to have certain tapering more, can let blood through blood purifying device in the short time, reduces the blood coagulation is taken place to the patient when hemoperfusion risk.
Description
Technical field
This utility model relates to blood purification consumptive material field, particularly a kind of end cap for apparatus for purifying blood, relates to a kind of apparatus for purifying blood with this end cap in addition.
Background technology
Along with progress and the development of blood perfusion technique, its scope of application is more and more wider, and treatment category has related to multiple fields such as drug intoxication, uremia, kidney disease, disease of immune system.Along with the raising of people's living standard and the increase of health perception, hemoperfusion, as a kind of disease treatment mode, is widely accepted, and annual use amount is in the trend increased.
As the medical apparatus and instruments being exclusively used in hemoperfusion, apparatus for purifying blood is built-in with the adsorbent purified the blood.In Clinical practice process, apparatus for purifying blood is series at extracorporeal circulation of blood pipeline, when blood is through perfusion device, and the morbid substance in adsorbent blood wherein, thus reach the object of disease therapy.
Chinese utility model patent CN200820047979 discloses a kind of disposable blood perfusion device, and the component parts of this perfusion device comprises a cylindrical shell and the two cover closing devices for the axial two-port of difference sealed cylinder.In inner barrel, various types of adsorbent can be held according to different therapeutic purposes, such as acticarbon, resin sorbent etc.Often overlap closing device to be made up of filter screen, sealing plain cushion, end cap, locking nut and block etc.End cap is arranged at the end of cylindrical shell, end cap has blood mouth, and block coordinates with the blood mouth on end cap, thus realizes the sealing to blood mouth and perfusion device.Wherein, cylindrical shell, end cap, locking nut and block all adopt medical Merlon to produce with Shooting Technique as raw material; Sealing plain cushion and the sealed bolster be fixed on block all adopt silicone rubber to produce with Shooting Technique as raw material; Filter screen is normally produced with weaving manner as raw material with nylon yarn.Content disclosed in above-mentioned patent is incorporated to by reference to quoting herein.
The end cap great majority of existing apparatus for purifying blood are planar structure, and this is unfavorable for the flowing of blood in perfusion device, causes patient to there is the danger of blood coagulation when perfusion.Therefore, be necessary that design one is conducive to blood flow, also help the apparatus for purifying blood end cover structure of aerofluxus simultaneously.
Utility model content
A technical problem to be solved in the utility model is the above-mentioned defect for prior art, provides one can more meet blood flow dynamics, to strengthen the end cap for apparatus for purifying blood of blood at apparatus for purifying blood internal liquidity.
Another technical problem to be solved in the utility model is to provide a kind of apparatus for purifying blood with above-mentioned end cap, and this end cap can meet blood flow dynamics more, to strengthen blood at apparatus for purifying blood internal liquidity.
In order to solve above-mentioned first technical problem, this utility model provides a kind of end cap for apparatus for purifying blood, comprise the lid and blood mouth that are connected, described lid is horn-like, described blood mouth is near the less one end of the diameter of this horn-like lid, and the tapering of described horn-like lid is 25-45 °.
From such scheme, end cap of the present utility model, owing to having certain tapering, therefore meets blood flowing characteristic more, and blood can be allowed in the short period of time by apparatus for purifying blood, reduces the risk that blood coagulation occurs when hemoperfusion patient.
Preferably, the tapering of described horn-like lid is 30 °
In further embodiment, in described end cap, be provided with filter screen installation position.Preferably, this end cap also comprises the limiting platform between described lid and blood mouth, and it is inner that described filter screen installation position is formed in this limiting platform.
In further embodiment, the cavity diameter of described filter screen installation position is 12-25mm.
In one embodiment, described filter screen installation position is cylindrical cavity, and the chamber wall of this cylindrical cavity is provided with the buckle or screw thread that coordinate with filter screen.Further, the end face of described limiting platform is provided with multiple floating-point.Preferably, described floating-point is hemispherical floating-point, and its quantity is 6-24.
In order to solve above-mentioned second technical problem, this utility model provides a kind of apparatus for purifying blood, comprise cylindrical shell and be arranged at the end cap of axial end portion of described cylindrical shell, described end cap comprises the lid and blood mouth that are connected, described lid is horn-like, described blood mouth is near the less one end of the diameter of this horn-like lid, and the tapering of described horn-like lid is 25-45 °.
From such scheme, the end cap of this utility model apparatus for purifying blood is owing to having certain tapering, therefore more meet blood flowing characteristic, blood can be allowed in the short period of time by apparatus for purifying blood, reduce the risk that blood coagulation occurs when hemoperfusion patient.
Preferably, the tapering of described horn-like lid is 30 °
In further embodiment, in described end cap, be provided with filter screen installation position.Preferably, this end cap also comprises the limiting platform between described lid and blood mouth, and it is inner that described filter screen installation position is formed in this limiting platform.
In further embodiment, the cavity diameter of described filter screen installation position is 12-25mm.
In one embodiment, described filter screen installation position is cylindrical cavity, and the chamber wall of this cylindrical cavity is provided with the buckle or screw thread that coordinate with filter screen.Further, the end face of described limiting platform is provided with multiple floating-point.Preferably, described floating-point is hemispherical floating-point, and its quantity is 6-24.
In further embodiment, this apparatus for purifying blood also comprises the block coordinated with the blood mouth on described end cap, described block comprises block body and sealed bolster, described block body comprises perisporium, end wall and hollow joint pin, axial one end of wherein said perisporium is formed as opening of blocking a shot, and the axial other end is closed by described end wall.Described perisporium is provided with outward flange near one end of described block opening, and the bottom of this outward flange is provided with the multiple anti-slip tanks matched with multiple floating-points of the limiting platform end face of described end cap.
Accompanying drawing explanation
Fig. 1 is the longitudinal sectional view of the embodiment one of this utility model apparatus for purifying blood.
Fig. 2 is the longitudinal sectional view of the block in the middle of apparatus for purifying blood shown in Fig. 1.
The longitudinal direction that Fig. 3 is the end cap in the middle of apparatus for purifying blood shown in Fig. 1 partly cuts open figure.
Fig. 4 is the longitudinal sectional view of the embodiment two of this utility model apparatus for purifying blood end cap.
Fig. 5 is the longitudinal sectional view of the embodiment three of this utility model apparatus for purifying blood end cap.
Fig. 6 is the longitudinal sectional view of the embodiment four of this utility model apparatus for purifying blood end cap.
Detailed description of the invention
To describe various embodiment of the present utility model below in detail, embodiment wherein in conjunction with the accompanying drawings and describe hereinafter.Although this utility model will be described in conjunction with illustrative embodiments, be to be understood that this utility model is not limited to these illustrative embodiments.On the contrary, this utility model not only comprises these embodiments, but also comprises various distortion, improvement.
Embodiment one
As shown in Figure 1, apparatus for purifying blood of the present utility model can be the inner apparatus for purifying blood that accommodate adsorbent such as single use blood perfusion device, single use plasma bilirubin adsorber, single use Endotoxin adsorption device, DNA immunization adsorber.Apparatus for purifying blood in the present embodiment is single use blood perfusion device, it comprises cylindrical shell 18, various types of adsorbent can be held according to different therapeutic purposes, such as acticarbon, resin sorbent, the agent of natural polymer carrier adsorption etc. in cylindrical shell 18.The lower end of cylindrical shell 18 is female Luer and Luer lock joint, is sealed by block 10.Press seal is carried out by sealing ring 17, end cap 13 and nut 16 in the upper end of cylindrical shell 18, wherein, end cap 13 is sealed by block 10, nut 16 and cylindrical shell 18 end are connected with screw thread or click on fashion and coordinate, end cap 13 inside is provided with filter screen installation position, filter screen installation position is for installing fixing filter screen, and the present embodiment is preferably and the gateway place near end cap 13 is provided with filter screen installation position 138, and filter screen 14 is mounted on this filter screen installation position 138.Block 10 comprises block body 11 and sealed bolster 12, block body 11 can be hard plastic part, such as adopt medical polycarbonate or polypropylene PP to produce with Shooting Technique as raw material, sealed bolster 12 and sealing ring 17 can adopt silicone rubber to produce with Shooting Technique as raw material.
End cap 13 in the present embodiment is split type end cap, and pre-determined bit is first carried out in end cap 13 and cylindrical shell 18 end, then is realized being fixedly connected with of cylindrical shell 18 and end cap 13 by nut 16 and the screw thread couple of cylindrical shell 18 end.In other embodiments, above-mentioned end cap can also be integral type end cap, and namely end cap is provided with coupled threads integratedly, barrel end is also provided with coupled threads, end cap is fixedly connected with by screw thread couple with cylindrical shell.
As shown in Figure 2, described block body 11 comprises perisporium 21, end wall 22 and hollow joint pin 23, and axial one end of wherein said perisporium 21 is formed as opening 29 of blocking a shot, and the axial other end is closed by described end wall 22.Described perisporium 21 is provided with outward flange 25 near one end of block opening 29, and the bottom of outward flange 25 is provided with multiple anti-slip tank 26.The outer peripheral face of hollow joint pin 23 is provided with external screw thread 28.
As shown in Figure 3, end cap 13 comprises blood mouth 131, limiting platform 132 and the lid 133 etc. that are connected, and limiting platform 132 is between blood mouth 131 and lid 133, and this limiting platform 132 inside has filter screen installation position 138.The outer of blood mouth 131 is arranged with cylindric coupled wall 136, and this coupled wall 136 has identical axis with blood mouth 131, and the inner peripheral surface of coupled wall 136 is provided with the female thread 137 that can be coupled with the external screw thread 28 of hollow joint pin 23.Blood mouth 131 is Rule male joint, and Rule male joint is in mating connection with the outer union joint with standard luer taper, thus ensure that the popularity on this end cap Clinical practice.Blood mouth 131 and limiting platform 132 and lid 133 one-body molded, adopt medical grade material to obtain with injection molding manner, to ensure the safety in use procedure.Filter screen installation position 138 is cylindrical cavity, and diameter can be 20mm, and the chamber wall of this filter screen installation position 138 is provided with buckle 1381, for fixed support filter screen 14.
Lid 133 is in horn-like, and its tapering is 30 °, and the less one end of its diameter is near filter screen installation position 138.Blood mouth 131 is inserted into the inner chamber of the hollow joint pin 23 of block 10, and the outer end of blood mouth 131 is sealed by sealed bolster 12.The end face of limiting platform 132 is provided with 12 floating-points 135 around coupled wall 136, and floating-point 135 shape is hemispherical or other shapes be applicable to, and diameter is 0.8mm.When the outward flange 25 of block 10 contacts with limiting platform 132, floating-point 135 on limiting platform 132 coordinates with the anti-slip tank 26 on block 10, thus locking effect is played to block 10, block 10 is avoided to be opened easily in non-artificial situation or under less External Force Acting, guarantee safety, avoid the harmful substances such as antibacterial to enter blood mouth 131.The periphery of one end that the diameter of lid 133 is larger is provided with coupling loop 1310, for coordinating with the end of perfusion device cylindrical shell 18, guide ring 1311 is provided with at the intersection of coupling loop 1310 and lid 133, guide ring 1311 for limiting the internal diameter of sealing ring 17, thus realizes the control to sealing ring 17 decrement.
Embodiment two
As shown in Figure 4, end cover structure and the embodiment one of the present embodiment are substantially similar, difference is, the tapering of horn-like lid 133 is 35 °, the diameter of the floating-point 135 on limiting platform 132 is 1.0mm, the chamber wall of filter screen installation position 138 does not arrange buckle, and filter screen is fixed on filter screen installation position 138 in an interference fit, and the cavity diameter of filter screen installation position 138 is 25mm.
Embodiment three
As shown in Figure 5, the end cover structure of the present embodiment and embodiment one are also substantially similar, and difference is, the tapering of horn-like lid 133 is 25 °.The chamber wall of filter screen installation position 138 is provided with female thread 1382, for seeing Fig. 1 with filter screen 14() be coupled and fixing filter screen 14.The cavity diameter of filter screen installation position 138 is 12mm.Limiting platform 132 is provided with 6 prismatic floating-points 135, and the maximum gauge of floating-point 135 is 1.0mm.
Embodiment four
As shown in Figure 6, the end cover structure of the present embodiment and embodiment one are also substantially similar, and difference is, the tapering of horn-like lid 133 is 45 °.The chamber wall of filter screen installation position 138 is smooth wall, and its cavity diameter is 25mm.Filter screen 14(is shown in Fig. 1) be arranged in filter screen installation position 138 by modes such as supports.Limiting platform 132 is provided with 24 prismatic floating-points 135, and the maximum gauge of floating-point 135 is 0.8mm.
From above embodiment, apparatus for purifying blood of the present utility model is by being arranged to horn-like by the lid of its end cap, and the tapering of lid is 25 ° to 45 °, the mobility of liquid is more met from hydromechanical angle, make the easier outflow along lid from blood mouth in apparatus for purifying blood inside of the liquid such as blood or blood plasma, reduce the risk that blood coagulation occurs when hemoperfusion patient.Lid is being provided with filter screen near blood mouth one end simultaneously, compared with prior art, because the effective filtration area of filter screen reduces, accelerated by the rate of flow of fluid of filter screen in unit interval, higher fluid shear rate can be produced in the mesh of mesh sheet, the gas in apparatus for purifying blood is made to be increased by the pressure of unit are filter screen when rushing in advance, the gas that apparatus for purifying blood inside produces is easy to discharge along apparatus for purifying blood from filter screen to blood mouth, simplify the operation of medical personnel, shorten evacuation time, for critical patient strives for more treatment time simultaneously.
Above-described is only preferred implementation of the present utility model; should be understood that; for the person of ordinary skill of the art, under the prerequisite not departing from inventive concept of the present utility model, some distortion and improvement can also be made and do not exceed protection domain of the present utility model.
Claims (10)
1. for the end cap of apparatus for purifying blood, comprise the lid and blood mouth that are connected, it is characterized in that, described lid is horn-like, and described blood mouth is near the less one end of the diameter of this horn-like lid, and the tapering of described horn-like lid is 25-45 °.
2. end cap according to claim 1, is characterized in that: the tapering of described horn-like lid is 30 °.
3. end cap according to claim 1 and 2, is characterized in that: be provided with filter screen installation position in this end cap.
4. end cap according to claim 3, is characterized in that: this end cap also comprises the limiting platform between described lid and blood mouth, and it is inner that described filter screen installation position is formed in this limiting platform.
5. end cap according to claim 4, is characterized in that: described filter screen installation position is cylindrical cavity, and the chamber wall of this cylindrical cavity is provided with the buckle or screw thread that coordinate with filter screen.
6. end cap according to claim 4, is characterized in that: the cavity diameter of described filter screen installation position is 12-25mm.
7. end cap according to claim 4, is characterized in that: the end face of described limiting platform is provided with multiple floating-point.
8. end cap according to claim 7, is characterized in that: described floating-point is hemispherical floating-point, and its quantity is 6-24.
9. apparatus for purifying blood, comprises cylindrical shell and is arranged at the end cap of axial end portion of described cylindrical shell, it is characterized in that: described end cap is the end cap according to any one of claim 1 to 8.
10. apparatus for purifying blood according to claim 9, it is characterized in that: also comprise the block coordinated with the blood mouth on described end cap, described block comprises block body and sealed bolster, described block body comprises perisporium, end wall and hollow joint pin, axial one end of wherein said perisporium is formed as opening of blocking a shot, the axial other end is closed by described end wall, described perisporium is provided with outward flange near one end of described block opening, and the bottom of this outward flange is provided with the multiple anti-slip tanks matched with multiple floating-points of the limiting platform end face of described end cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520682963.4U CN204951774U (en) | 2015-09-02 | 2015-09-02 | End cover and have blood purifying device of this end cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520682963.4U CN204951774U (en) | 2015-09-02 | 2015-09-02 | End cover and have blood purifying device of this end cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204951774U true CN204951774U (en) | 2016-01-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520682963.4U Active CN204951774U (en) | 2015-09-02 | 2015-09-02 | End cover and have blood purifying device of this end cover |
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| Country | Link |
|---|---|
| CN (1) | CN204951774U (en) |
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- 2015-09-02 CN CN201520682963.4U patent/CN204951774U/en active Active
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| 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. |
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| CP01 | Change in the name or title of a patent holder |