CN204699119U - Blood purification consumptive material and end cap thereof - Google Patents
Blood purification consumptive material and end cap thereof Download PDFInfo
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- CN204699119U CN204699119U CN201520309414.2U CN201520309414U CN204699119U CN 204699119 U CN204699119 U CN 204699119U CN 201520309414 U CN201520309414 U CN 201520309414U CN 204699119 U CN204699119 U CN 204699119U
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Abstract
This utility model provides a kind of blood purification consumptive material and end cap thereof, this end cap comprises end cap body, the top of end cap body is provided with female Luer, the below of end cap body is provided with spiral helicine guiding device, the first end of guiding device is communicated with female Luer, second end of guiding device is opening end, and guiding device increases to the second end spiral centered by first end.Blood purification consumptive material comprises adsorption column, and the two ends of adsorption column are respectively equipped with above-mentioned entrance end cap and an outlet end cap.The blood purification consumptive material that this utility model provides effectively can avoid the phenomenon occurring local blood coagulation in blood purification consumptive material, and form spiral helicine liquid stream after blood inflow blood purification consumptive material, blood can fully contact with adsorbent or dialyzer etc., improves blood depuration efficiency.
Description
Technical field
This utility model relates to medical instruments field, especially relates to a kind of blood purification consumptive material and end cap thereof.
Background technology
Blood purification consumptive material, as blood perfusion device, dialyser, plasma purification device etc., be mainly used in blood purification treatment, blood purification therapy be by blood cleaning equipment and pipeline by the blood of patient from navigation inside the body to external blood purification consumptive material, by absorption, filter means, noxious substance etc. in blood is removed, reaches the object to blood purification, be widely used at present in the treatment of the diseases such as nephropathy, hepatopathy, acute poisoning.
Common blood purification consumptive material is perfusion device, see Fig. 1, existing perfusion device comprises a columned adsorption column 10, end cap is respectively equipped with at the two ends of adsorption column 10, entrance end cap 11 and outlet end cap 20 respectively, the structure of entrance end cap 11 is identical with the structure of outlet end cap 20, just towards the opposite.
See Fig. 2, comprise the formations such as filter screen 17, sealing plain cushion 16, gland 15, locking nut 12 and block 13 at the entrance end cap 11 of the upper end of adsorption column 10.Wherein, adsorption column 10, gland 15, locking nut 12 and block 13 all adopt medical Merlon (PC) to produce with Shooting Technique as raw material, and sealing plain cushion 16 and the sealed bolster 14 be fixed on block 13 all adopt silicone rubber to produce with Shooting Technique as raw material.
When using perfusion device to carry out blood purification treatment, need the entrance end cap 11 and the outlet end cap 20 that use pipeline connection human body, perfusion device.Pipeline is embedded on blood cleaning equipment, and blood enters perfusion device under the exogenetic process of blood cleaning equipment after human body flows out, and the adsorbent in adsorption column adsorbs the noxious substance etc. in blood, then passes back into human body, thus realizes the purification of blood.The middle part of the entrance end cap 11 of perfusion device is provided with female Luer, the interface namely for being connected with exterior line, and what form perfusion device enters blood mouth.Meanwhile, the middle part of outlet end cap 20 also arranges identical female Luer, for being connected with exterior line, thus forms the blood outlet of perfusion device.
But, due to blood purification consumptive material enter blood mouth and blood outlet is on same straight line, and liquid has certain flow velocity, liquid is easier in entering blood mouth directly to blood outlet, form axial flow phenomenon, and liquid fails fully to contact with the adsorbent be positioned at outside blood mouth diameter range or dialyzer, thus cause the effectiveness that can not make full use of adsorbent or dialyzer.In addition, because blood fluidity on the region of close blood purification consumptive material perisporium is poor in therapeutic process, local blood coagulation equivalent risk may be caused.
Summary of the invention
Main purpose of the present utility model is to provide one makes blood fully contact with the internal adsorption agent of blood purification consumptive material or dialyzer, effectively can avoid the blood purification consumptive material end cap occurring local blood coagulation in blood purification consumptive material simultaneously.
Another object of the present utility model is to provide the blood purification consumptive material using above-mentioned end cap.
In order to realize above-mentioned main purpose, the blood purification consumptive material end cap that this utility model provides comprises end cap body, the top of end cap body is provided with female Luer, the below of end cap body is provided with spiral helicine guiding device, the first end of guiding device is communicated with female Luer, second end of guiding device is opening end, and guiding device increases to the second end spiral centered by first end.
From such scheme, spiral helicine guiding device is set in the end cap of blood purification consumptive material, blood to flow through after guiding device in adsorption column liquid stream spirally, thus the adsorbent be positioned at adsorption column fully beyond blood mouth diameter or dialyzer contact, and improve therapeutic effect.In addition, because blood helically flows through adsorption column, thus the blood near adsorption column perisporium is fully flowed, avoid the phenomenon occurring local blood coagulation.
A preferred scheme is, guiding device is mozzle, and mozzle is removably fixed on end cap body.
As can be seen here, mozzle can be threaded connection, clamping, interference fit, the mode such as bonding are fixed on end cap body, has both facilitated the manufacture of end cap, can change mozzle easily again.
An optional scheme is, guiding device and end cap body integrated injection molding.Like this, guiding device can be securely fixed in below end cap body, avoids guiding device to get loose from end cap body.
Another optional scheme is, end cap body is gland, and guiding device comprises the deflector be positioned at below gland, is provided with spiral helicine rib between gland and deflector.
As can be seen here, the space surrounded by rib and gland, deflector forms guiding device, and guiding device is more firm.
Further scheme is, guiding device is provided with more than one pod apertures, and the cross section of pod apertures is circular.
Visible, pod apertures is arranged to circle, avoids causing damage to blood cell.
Further scheme is, guiding device is provided with steam vent, and steam vent is arranged on the sidewall of guiding device and female Luer junction.
As can be seen here, when blood purification consumptive material needs before using oppositely to rush in advance, breaking through the bubble produced in journey in advance can discharge from steam vent, avoids bubble to enter human body, reduces the risk for the treatment of.
For realizing another above-mentioned object, the blood purification consumptive material that this utility model provides comprises adsorption column, and the two ends of adsorption column are respectively equipped with above-mentioned entrance end cap and outlet end cap, and outlet end cap is common end cap, does not namely arrange guiding device.
From such scheme, spiral helicine guiding device is set in the entrance end cap of the blood purification consumptive materials such as perfusion device, spiral helicine liquid stream is formed after blood can be allowed to flow into adsorption column, thus fully contact with the adsorbent in adsorption column or dialyzer fully, also avoid the blood near blood purification consumptive material perisporium to occur blood coagulation phenomenon.
Accompanying drawing explanation
Fig. 1 is the structure chart of existing a kind of perfusion device.
Fig. 2 is the partial structurtes exploded view of existing perfusion device.
Fig. 3 is the sectional view of this utility model end cap first embodiment.
Fig. 4 is the top view of guiding device and end cap body in this utility model end cap first embodiment.
Fig. 5 is the sectional view of this utility model end cap second embodiment.
Fig. 6 is the longitudinal section view of guiding device and end cap body in this utility model end cap second embodiment.
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Detailed description of the invention
Blood purification consumptive material of the present utility model is perfusion device, dialyser etc., for perfusion device, perfusion device comprises a columniform adsorption column, entrance end cap and outlet end cap is respectively equipped with at the two ends of adsorption column, the middle part of entrance end cap is provided with one and enters blood mouth, the middle part of outlet end cap is provided with a blood outlet, and blood flows into perfusion device from entering blood mouth, and flows out perfusion device from blood outlet.
The outlet end cap of perfusion device of the present utility model is common end cap, and be namely provided with an end cap body, the middle part of end cap body is provided with female Luer, and for being connected with the female Luer on exterior line, therefore female Luer forms blood outlet.Emphasis describes the structure of the entrance end cap of blood purification consumptive material below.
First embodiment:
See Fig. 3, the entrance end cap 30 of the present embodiment has an end cap body 31, and end cap body 31 is roughly rounded, and be provided with a cap body 32 in the middle part of it, cap body 32 is positioned at the top of end cap body 31.The middle part of cap body 32 is female Luer 33, is also just formed into blood mouth.Be provided with sidewall 34 at the outer peripheral edge place of end cap body 31, the inwall of sidewall 34 formed female thread 35.Entrance end cap 30 is connected with the external screw thread of adsorption column end by female thread 35, thus is fixed on the end of adsorption column.In the present embodiment, end cap body 31, cap body 32 and sidewall 34 are one-body molded.End cap also can be arranged to the structure that lid separates with sidewall, as the end cover structure containing nut in background technology, in this no longer burden introduction.
Spiral helicine mozzle 40 is provided with in the below of end cap body 31, see Fig. 4, mozzle 40 is as the guiding device of the present embodiment, its first end 41 is positioned at the inner terminal of mozzle 40, second end 42 is the outermost end of mozzle 40, first end 41 is connected with the female Luer 33 above end cap body 31, and blood can flow directly in mozzle 40 after flowing into from female Luer 33.Second end 42 of mozzle 40 is opening end, and blood can flow out mozzle 40 from the second end 42.
As seen from Figure 4, mozzle 40 increases to the second end 42 spiral gradually from first end 41, and therefore relative to the center of mozzle 40, the radius at first end 41 place is minimum, and the radius at the second end 42 place is maximum.Mozzle 40 is provided with multiple pod apertures 43, and the cross section of each pod apertures 43 is circle, and pod apertures 43 is arranged towards the direction away from cap body, when blood flows through mozzle 40, part blood can flow out through pod apertures 43, guide blood flows out from different positions, thus guarantees that blood flows to diverse location in adsorption column, and blood is fully contacted with adsorbent, dialyzer etc.In addition, the cross section of pod apertures 43 is arranged to circle, and circular blood cell is through not easily damaged during pod apertures 43.
The sidewall of mozzle 40 is provided with a steam vent 44, and preferably, steam vent 44 is arranged on mozzle 40 with on the sidewall of female Luer 33 junction.Like this, when blood purification consumptive material needs to carry out oppositely rushing in advance, can discharge from steam vent 44 easily at the bubble breaking through institute's output in journey in advance, avoid bubble to enter human body, reduce the medical-risk of perfusion.
The spiral number of turns of the mozzle 40 of the present embodiment is some circles, when the internal diameter of entrance end cap 30 is less than 40 millimeters, the spiral of mozzle 40 is that circle to two circle is the most suitable, and when the internal diameter of entrance end cap 30 is greater than 40 millimeters, the spiral of mozzle 40 is that two circles to three circles are the most suitable.In addition, the diameter of mozzle 40 outmost turns be the internal diameter of entrance end cap 30 2/1 to three/3rds between.
In the present embodiment, mozzle 40 is removably fixed on the below of end cap body 31, such as, be threaded connection mode between mozzle 40 with female Luer 33 to be connected, or on the first end 41 of mozzle 40, bayonet socket is set, female Luer 33 arranges the draw-in groove corresponding with bayonet socket, and the mode by clamping between mozzle 40 with female Luer 33 is connected.Or mozzle 40 is fixed on end cap body 31 by modes such as bonding, welding.
In addition, mozzle 40 also can with end cap body 31 integrated injection molding, the production technology of entrance end cap 30 can be simplified like this, also reduce the cost of manufacture of entrance end cap 30, improve the production efficiency of entrance end cap 30.
After blood flows into perfusion device from entrance end cap 30, first flow to adsorption column again through spiral helicine mozzle 40, flow to the blood after adsorption column and form spiral helicine liquid stream, blood can fully with adsorbent contact, improve the efficiency of hemoperfusion.Further, the blood be positioned near perfusion device perisporium also can fully flow, and avoids the phenomenon of blood coagulation to occur.
Second embodiment:
See Fig. 5, the entrance end cap 50 of the present embodiment has a circular end cap body 51, cap body 52 is provided with above end cap body 51, cap body 52 is positioned at the middle part of end cap body 51, female Luer 53 is provided with in cap body 52, namely perfusion device enter blood mouth, blood flows in perfusion device from female Luer 53.
The entrance end cap 50 of the present embodiment is the end cap that gland and locking nut are formed, therefore end cap body 51 is gland, the sidewall 54 of gland peripheral region is the sidewall of locking nut, and the inwall of sidewall 54 is provided with female thread 55, for being connected with the external screw thread of adsorption column end.
Spiral helicine guiding device 60 is provided with below the gland of entrance end cap 50, guiding device 60 comprises one piece of deflector 64 be positioned at below gland, spiral helicine rib 65 is formed between deflector 64 and gland, as shown in Figure 6, the first end 61 of rib 65 is the inner terminal of guiding device 60, second end 62 is the outermost end of guiding device 60, and the second end 62 forms opening end, and blood flows out from the second end of guiding device 60.
In addition, deflector 64 can arrange multiple pod apertures, blood can flow in adsorption column through these mozzles, thus guarantees that blood can flow to adsorption column from different directions.Preferably, the cross section of these pod apertures is also circular, avoids causing damage to blood cell.Preferably, the diameter of guiding device 30 outmost turns be the internal diameter of entrance end cap 50 2/1 to three/3rds between.
Because gland, deflector 64 and rib 65 surround spiral helicine flow-guiding channel, blood flows out the spiral helicine liquid stream of rear formation from guiding device 60, the adsorbent in adsorption column etc. can fully with contacting blood.Further, the blood near adsorption column perisporium also can fully flow, and avoids the phenomenon occurring local blood coagulation.
Finally it is emphasized that this utility model is not limited to above-mentioned embodiment, the change etc. as the change of the guiding device spiral number of turns, pod apertures shape and quantity change also should be included in this utility model claim protection domain in.
Claims (10)
1. blood purification consumptive material end cap, comprises
End cap body, the top of described end cap body is provided with female Luer;
It is characterized in that:
The below of described end cap body is provided with spiral helicine guiding device, and the first end of described guiding device is communicated with described female Luer, and the second end of described guiding device is opening end, and described guiding device increases to described second end spiral centered by described first end.
2. blood purification consumptive material end cap according to claim 1, is characterized in that:
Described guiding device is mozzle, and described mozzle is removably fixed on described end cap body.
3. blood purification consumptive material end cap according to claim 1, is characterized in that:
Described guiding device and described end cap body integrated injection molding.
4. blood purification consumptive material end cap according to claim 1, is characterized in that:
Described end cap body is gland, and described guiding device comprises the deflector be positioned at below described gland, is provided with spiral helicine rib between described gland and described deflector.
5. blood purification consumptive material end cap according to claim 1, is characterized in that:
Described guiding device is provided with more than one pod apertures.
6. blood purification consumptive material end cap according to claim 5, is characterized in that:
The cross section of described pod apertures is circular.
7. blood purification consumptive material end cap according to claim 1, is characterized in that:
Described guiding device is provided with steam vent, and described steam vent is arranged on the sidewall of described guiding device and described female Luer junction.
8. blood purification consumptive material end cap according to claim 1, is characterized in that:
The diameter of described guiding device outmost turns be described end cap internal diameter 2/1 to three/3rds between.
9. blood purification consumptive material end cap according to claim 1, is characterized in that:
The spiral number of turns of described guiding device is between a circle to three encloses.
10. blood purification consumptive material, comprises
Adsorption column, the two ends of described adsorption column are respectively equipped with entrance end cap and outlet end cap;
It is characterized in that:
Described entrance end cap is the blood purification consumptive material end cap as described in any one of claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520309414.2U CN204699119U (en) | 2015-05-13 | 2015-05-13 | Blood purification consumptive material and end cap thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520309414.2U CN204699119U (en) | 2015-05-13 | 2015-05-13 | Blood purification consumptive material and end cap thereof |
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| CN204699119U true CN204699119U (en) | 2015-10-14 |
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| CN201520309414.2U Active CN204699119U (en) | 2015-05-13 | 2015-05-13 | Blood purification consumptive material and end cap thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107485744A (en) * | 2017-09-12 | 2017-12-19 | 东莞科威医疗器械有限公司 | A kind of membrane oxygenator |
| CN109550094A (en) * | 2018-11-05 | 2019-04-02 | 贝恩医疗设备(广州)有限公司 | A kind of dialyzer end cap and its welding procedure |
| CN109663162A (en) * | 2019-01-29 | 2019-04-23 | 广州康盛生物科技有限公司 | The encapsulating structure of plasorber and its adsorbent |
| CN110114102A (en) * | 2017-01-30 | 2019-08-09 | 东丽株式会社 | Decontaminating column |
| US11925736B2 (en) | 2019-11-12 | 2024-03-12 | Fresenius Medical Care Deutschland Gmbh | Blood treatment systems |
-
2015
- 2015-05-13 CN CN201520309414.2U patent/CN204699119U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110114102A (en) * | 2017-01-30 | 2019-08-09 | 东丽株式会社 | Decontaminating column |
| CN107485744A (en) * | 2017-09-12 | 2017-12-19 | 东莞科威医疗器械有限公司 | A kind of membrane oxygenator |
| CN107485744B (en) * | 2017-09-12 | 2019-08-30 | 东莞科威医疗器械有限公司 | A kind of membrane oxygenator |
| CN109550094A (en) * | 2018-11-05 | 2019-04-02 | 贝恩医疗设备(广州)有限公司 | A kind of dialyzer end cap and its welding procedure |
| CN109663162A (en) * | 2019-01-29 | 2019-04-23 | 广州康盛生物科技有限公司 | The encapsulating structure of plasorber and its adsorbent |
| WO2020155618A1 (en) * | 2019-01-29 | 2020-08-06 | 广州康盛生物科技股份有限公司 | Encapsulation structure of blood plasma adsorber and adsorbent thereof |
| US11925736B2 (en) | 2019-11-12 | 2024-03-12 | Fresenius Medical Care Deutschland Gmbh | Blood treatment systems |
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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. |