CN2678657Y - White blood cell filter for external circulation - Google Patents
White blood cell filter for external circulation Download PDFInfo
- Publication number
- CN2678657Y CN2678657Y CN 200420032682 CN200420032682U CN2678657Y CN 2678657 Y CN2678657 Y CN 2678657Y CN 200420032682 CN200420032682 CN 200420032682 CN 200420032682 U CN200420032682 U CN 200420032682U CN 2678657 Y CN2678657 Y CN 2678657Y
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- container body
- blood vessel
- filter
- leucocyte
- extracorporeal circulation
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Abstract
A white blood cell filter external circulation of the utility model comprises a container body, an entering blood vessel and an exiting blood vessel which are connected with the container body and a white blood cell filter which is arranged in the inner cavity of the container body. The white blood cell filter divides the inner cavity of the container body into two independent cavities. The entering blood vessel is communicated with one of the cavities, and the exiting blood vessel is communicated with the other cavity. With simple structure, the white blood cell filter not only decreases the resistance of blood-flowing but also improves the effect of filtering the white blood cell. The white blood cell filter external circulation can be used in the operations such as the heart-lung shunt, the renal failure dialysis, the liver transplantation shunt and filtering blood fat.
Description
Technical field
This utility model belongs to the leukocytic medical apparatus in the filtering blood, and particularly a kind of heart-lung shunt and other need blood is carried out the leucocyte filter of the operation use of extracorporeal circulation.
Background technology
Blood and extracorporeal circulation pipeline extensive contacts can activated leukocyte, can be behind the leukocyte activation by organ functions such as the number of mechanisms damage heart, lung, brains, therefore, when implementing blood to be carried out the operation of extracorporeal circulation, the filtration of blood middle leukocytes is an important problem.Application number is that 03250122.6 Chinese patent application discloses a kind of leukocytic blood reservior that filters, this kind blood reservior is a kind of improvement to existing blood reservior, a leucocyte filtration device is set in its container body at least, and the main part of this leucocyte filtration device is positioned at the space of spongy layer formation or/and the space that filter screen and container body wall form.Leucocyte filtration device mainly by cross filter ruffle, cross the filter ruffle retainer ring, guide post and cross filter ruffle and receive folded mechanism and form; Guide post is at least two, and its lower end and container body bottom are connected, and its upper end is connected for free end or with container body top; Crossing the filter ruffle retainer ring is two, all is sleeved on the guide post, and one of them crosses the top that the filter ruffle retainer ring is fixed on guide post, and another is crossed the filter ruffle retainer ring and can slide along guide post; An end of crossing filter ruffle is connected with the filter ruffle retainer ring of crossing that is fixed on guide post top, the other end with can be connected along the filter ruffle retainer ring of crossing that guide post slides, crossing filter ruffle receives folded mechanism and can be connected along the filter ruffle retainer ring of crossing that guide post slides, when no longer needing to filter, operated the folded mechanism of filter ruffle receipts filter ruffle was moved upward, and received and be stacked in container body top.Though above-mentioned leucocyte filtration device can reduce when implementing the heart-lung shunt the quantity of leucocyte in the circulation and the inflammatory material of release thereof, reduce the leukocyte activation that hemodynamics causes, and reduced erythrocytic destruction around the filter ruffle, but there is following shortcoming: 1, excessive to the resistance of blood, can not satisfy the requirement of operation to blood flow; 2, structure is complicated, is not easy to clinical manipulation; 3, can only be applicable to the heart-lung shunt, the scope of application is little.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of simple in structure, little and be applicable to multiple extracorporeal circulation leucocyte filter to the resistance of blood.
Extracorporeal circulation described in the utility model with leucocyte filter comprise the container body, be connected with the container body advance blood vessel and go out the leukoreduction filter member that blood vessel, container intracoelomic cavity are provided with, this leukoreduction filter member is separated into two independently cavitys with the inner chamber of container body, advance blood vessel and be communicated with, go out blood vessel and be communicated with another cavity with one of them cavity.
The shape of the shape of leukoreduction filter member and structure and container body is complementary.If the container body is made up of the thin cylinder and the cover of end sealing, the leukoreduction filter member is crossed filter ruffle for the pipe shape, an end of crossing filter ruffle be fixed on cover on and the sealing ring that is installed in container body opening inner chamber end be connected, the other end is connected with the diverter that is installed in container intracoelomic cavity blind end; If the profile of container body is a truncated cone-shaped, the leukoreduction filter member is a filter, and this filter directly is connected with the inwall of container body.
In order to increase filter area, reduce the resistance of blood flow, the surface of crossing filter ruffle and filter can be designed to the flank profil shape.
In order to satisfy the needs of operation, increase safety and be convenient to the controlled filter time, bypass pipe can be set, bypass pipe is a relation in parallel with the container body, the one end with advance blood vessel and be connected, the other end with go out blood vessel and be connected, by the cooperation of vascular forceps, can make leucocyte filter be in filtration state or non-filtration state.
Discharge smoothly in order to make by the gas in the blood of leucocyte filter, can be at the container body or/and go out blood vessel or/and advance steam vent is set on the blood vessel.
The utlity model has following beneficial effect:
1, being that 03250122.6 Chinese patent application is disclosed with respect to application number filters leukocytic blood reservior, and member greatly reduces, and structure is more simple, thereby helps processing and fabricating, reduces cost.
2, have only the leukoreduction filter member in the container body, thereby the resistance of blood flow reduces.
3, the surface of filter element is the flank profil shape, not only helps reducing the resistance of blood flow, and has improved and filtered leukocytic effect.
4, both arterial end can be installed in, vein end can be installed in again, thus applied widely, can be used for operations such as the heart-lung shunt, renal failure dialysis, liver transplantation shunt, filtration blood fat.
5, be provided with bypass pipe, increased safety, and be convenient to the controlled filter time.
Description of drawings
Fig. 1 is the first kind structure chart of extracorporeal circulation described in the utility model with leucocyte filter;
Fig. 2 is the second kind structure chart of extracorporeal circulation described in the utility model with leucocyte filter;
Fig. 3 is extracorporeal circulation described in the utility model the third structure chart with leucocyte filter;
Fig. 4 is the extracorporeal circulation among Fig. 3 is in the filtration state with leucocyte filter a sketch map;
Fig. 5 is the extracorporeal circulation among Fig. 3 is in non-filtration state with leucocyte filter a sketch map;
Fig. 6 is the four kind structure chart of extracorporeal circulation described in the utility model with leucocyte filter;
Fig. 7 is A-A profile or the B-B profile of Fig. 3 or the C-C profile of Fig. 6 of Fig. 1;
Fig. 8 is a structural representation of making the filter membrane of filter element;
Fig. 9 is the five kind structure chart of extracorporeal circulation described in the utility model with leucocyte filter;
Figure 10 is the vertical view of Fig. 9.
Among the figure, 1-advance blood vessel, 2-container body, 3-diverter, 4-mistake filter ruffle, 5-sealing ring, 6-go out blood vessel, 7-steam vent, 8-bypass pipe, 9-vascular forceps, 10-filter.
The specific embodiment
Embodiment 1
In the present embodiment, extracorporeal circulation with the structure of leucocyte filter as shown in Figure 1, mainly by container body 2, advance blood vessel 1, go out blood vessel 6, diverter 3, leukoreduction filter cover 4, sealing ring 5 constitute.Container body 2 is made up of the thin cylinder and the cover of the end sealing that medical plastic is made; Sealing ring 5 is made by rubber, by being bonded and fixed on the cover and being installed in container body opening inner chamber end; Diverter 3 is made by medical plastic, is installed in container intracoelomic cavity blind end; The surface of leukoreduction filter cover 4 is the flank profil shape, is made by glass that is coated with supporting layer or non-woven fabrics, and as Fig. 7, shown in Figure 8, one end and sealing ring 5 are bonding, and the other end and diverter 3 are bonding, and the inner chamber of container body 2 is separated into two independently cavitys; Enter the blind end end that blood vessel 1 is connected container body 2, be communicated with, unfiltered blood is introduced this cavity, go out blood vessel 6 and be installed on the cover, be communicated with, with the blood output after filtering with another cavity of container body with a cavity of container body.Extracorporeal circulation in the present embodiment is used for venous blood with leucocyte filter and filters.
In the present embodiment, extracorporeal circulation with the structure of leucocyte filter as shown in Figure 2, difference from Example 1 is container body 2 and goes out blood vessel 6 to be provided with steam vent 7, other structure is all identical with embodiment 1.Extracorporeal circulation in the present embodiment is used for venous blood with leucocyte filter and filters.
In the present embodiment, extracorporeal circulation with the structure of leucocyte filter as shown in Figure 3, difference from Example 1 is: be provided with bypass pipe 8, an end of this bypass pipe with advance blood vessel 1 and be connected, the other end with go out blood vessel 6 and be connected; Container body 2 is provided with steam vent 7.Other structure is all identical with embodiment 1.When needs filter leukocyte, vascular forceps is installed on the bypass pipe 8, as shown in Figure 4; When not needing to filter leukocyte, vascular forceps is installed in into blood vessel 1 and goes out on the blood vessel 6, block the passage that blood enters the container body, as shown in Figure 5.Extracorporeal circulation in the present embodiment is used for venous blood with leucocyte filter and filters.
In the present embodiment, extracorporeal circulation with the structure of leucocyte filter as shown in Figure 6, difference from Example 1 is; Advance the sidewall that blood vessel 1 is connected container body 2 blind ends; Container body 2 is provided with steam vent 7; Be provided with bypass pipe 8, an end of this bypass pipe with advance blood vessel 1 and be connected, the other end with go out blood vessel 6 and be connected.Other structure is all identical with embodiment 1.Extracorporeal circulation in the present embodiment is used for arterial blood with leucocyte filter and filters.
In the present embodiment, extracorporeal circulation is with structure such as Fig. 9, shown in Figure 10 of leucocyte filter, mainly by container body 2, advance blood vessel 1, go out blood vessel 6, leukoreduction filter sheet 10, bypass pipe 8 constitute.Container body 2 usefulness medical plastics are made, and are thin-walled pressure vessel, and its profile is truncated cone-shaped; Leukoreduction filter sheet 10 directly is connected with the inwall of container body 2, and the inner chamber of container body 2 is separated into two independently cavitys, and its surface is the flank profil shape, is made by glass that is coated with protective layer or non-woven fabrics; Advance the right side wall that blood vessel 1 is connected container body 2, be communicated with, unfiltered blood is introduced this cavity, go out the left side wall that blood vessel 6 is connected the container body, be communicated with, with the blood output after filtering with another cavity of container body with a cavity of container body.Extracorporeal circulation in the present embodiment is used for venous blood with leucocyte filter and filters.
Claims (10)
1, a kind of extracorporeal circulation leucocyte filter, comprise container body (2), be connected with container body (2) advance blood vessel (1) and go out blood vessel (6), the inner chamber that it is characterized in that container body (2) is provided with the leukoreduction filter member, this leukoreduction filter member is separated into two independently cavitys with the inner chamber of container body (2), advance blood vessel (1) and be communicated with, go out blood vessel (6) and be communicated with another cavity with one of them cavity.
2, extracorporeal circulation leucocyte filter according to claim 1, it is characterized in that container body (2) is made up of the thin cylinder and the cover of end sealing, the filter ruffle (4) excessively that the leukoreduction filter member is complementary for the shape with the container body, an end of crossing filter ruffle (4) be fixed on cover on and the sealing ring (5) that is installed in cylinder opening end inner chamber end be connected, the other end is connected with the diverter that is installed in container intracoelomic cavity blind end (3).
3, extracorporeal circulation leucocyte filter according to claim 1, the profile that it is characterized in that container body (2) is a truncated cone-shaped, the leukoreduction filter member is and the filter (10) of container body coupling that filter directly is connected with the inwall of container body (2).
4,, it is characterized in that the surface of filter ruffle (4) and filter (10) was the flank profil shape according to claim 2 or 3 described extracorporeal circulation leucocyte filters.
5, according to claim 1 or 2 or 3 described extracorporeal circulation leucocyte filters, it is characterized in that also being provided with bypass pipe (8), an end of this bypass pipe with advance blood vessel (1) and be connected, the other end with go out blood vessel (6) and be connected.
6, extracorporeal circulation leucocyte filter according to claim 4 is characterized in that also being provided with bypass pipe (8), an end of this bypass pipe with advance blood vessel (1) and be connected, the other end with go out blood vessel (6) and be connected.
7,, it is characterized in that container body (2) or/and go out blood vessel (6) and be provided with steam vent (7) or/and advance blood vessel (1) according to claim 1 or 2 or 3 described extracorporeal circulation leucocyte filters.
8, extracorporeal circulation leucocyte filter according to claim 4 is characterized in that container body (2) or/and go out blood vessel (6) and is provided with steam vent (7) or/and advance blood vessel (1).
9, extracorporeal circulation leucocyte filter according to claim 5 is characterized in that container body (2) or/and go out blood vessel (6) and is provided with steam vent (7) or/and advance blood vessel (1).
10, extracorporeal circulation leucocyte filter according to claim 6 is characterized in that container body (2) or/and go out blood vessel (6) and is provided with steam vent (7) or/and advance blood vessel (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420032682 CN2678657Y (en) | 2004-02-02 | 2004-02-02 | White blood cell filter for external circulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420032682 CN2678657Y (en) | 2004-02-02 | 2004-02-02 | White blood cell filter for external circulation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2678657Y true CN2678657Y (en) | 2005-02-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420032682 Expired - Fee Related CN2678657Y (en) | 2004-02-02 | 2004-02-02 | White blood cell filter for external circulation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2678657Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101352622B (en) * | 2008-09-17 | 2010-11-10 | 西安交通大学 | Blood separating device and separating method for filtering leucocyte |
| CN101180089B (en) * | 2005-05-23 | 2010-12-08 | 旭化成可乐丽医疗株式会社 | Body fluid treating filter device |
-
2004
- 2004-02-02 CN CN 200420032682 patent/CN2678657Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101180089B (en) * | 2005-05-23 | 2010-12-08 | 旭化成可乐丽医疗株式会社 | Body fluid treating filter device |
| CN101352622B (en) * | 2008-09-17 | 2010-11-10 | 西安交通大学 | Blood separating device and separating method for filtering leucocyte |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050216 Termination date: 20100202 |