CN2378046Y

CN2378046Y - Bone marrow filter

Info

Publication number: CN2378046Y
Application number: CN 99221187
Authority: CN
Inventors: 翟瑞仁; 韩晨东; 邢敏; 虞靖彬
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-06-14
Filing date: 1999-06-14
Publication date: 2000-05-17
Anticipated expiration: 2009-06-14

Abstract

The utility model relates to a bone marrow filter which is composed of a pressurizer, an air pipe, a liquid inlet pipe, an upper casing, a lower casing, a base plate, a support bracket, a liquid outlet pipe, a filtering omentum, a valve, a safety valve, a sterilizer and a ruler. Because positive pressure filtering is adopted, the filtration velocity is enhanced, and the bone marrow filter has the functions of no blocking, sealing without bacteria, no damage of blood cells, and repeated use. The utility model is suitable for clinical marrow collection and storage and filtering in the course of the operation, and has the advantages of simple structure, reasonable structure, convenient operation and easy maintenance.

Description

The bone marrow filter

This utility model belongs to medical mechanical domain, particularly be applicable to that clinical collection bone marrow fluid is stored and use in the bone marrow filter used.

The bone marrow fluid of using in the medical treatment is that the bone marrow fluid that collects is processed after the filtration could usefulness, and method commonly used now is with press filtrations such as injection needle, switching regulators, exists easily and stops up, easily pollution problems.

The purpose of this utility model provides and a kind ofly can overcome above-mentioned shortcoming, can serialization production, easyly should go, the bone marrow filter of closed sterile soft.

The purpose of this utility model is achieved in that accompanying drawings is as follows:

A kind of bone marrow filter, its construction features is:

1. the fastening suitable for reading of the end opening of upper shell 6 and lower house 13 is tightly connected; The drain pipe 16 that has valve 15 is established in lower house 13 bottoms; The upper shell top is provided with feed tube 19; Feed tube 19 sidewalls are communicated with trachea 20, and trachea 20 other ends are provided with prelum 1; On feed tube 19, the top that is positioned at trachea 20 interfaces is provided with valve 2;

2. in lower house 13, laterally be provided with drainage screen mould 12;

3. on the lower house 13 fixing supports 11 in its lower section.

Accompanying drawing 1 cuts open structural representation for bone marrow filters general ability

Description of drawings and embodiment:

By accompanying drawing as can be known, filtering container is fixed on the support 11, and filtering container is to be fastened with lower house 13 sealings by upper shell 6 to form, for the ease of opening by installation and dismantling, specific design is: the border suitable for reading of lower house 13 is fixed on the lower surface of annular chassis 17, to be welded as the best; The end opening border of upper shell 6 is fixed on the upper surface on chassis 17 by nut 8, packing ring 9, nut 10; In order to guarantee the sealing of filter, between upper shell 6 and chassis 17, be provided with sealing ring 7.

Be provided with filtering net film 12 in lower house 13 inner transverse, the border of filtering net film 12 can be fixed on the inwall of lower house 13 with frame.

Upwards be communicated with a feed tube 19 on upper shell 6 tops, on feed tube 19, from the top down, inlet 21 is established in its upper end, valve 2 is established in inlet 21 belows, and valve 2 belows are the connected entrance with trachea 20, on feed tube 19, be positioned at feed tube 19 and be provided with relief valve 3, below safety 3, be provided with steriliser 4 to guarantee its hygienic quality with trachea 20 connected entrances below; Preferably weld with the place of connection, upper shell 6 upper end feed tube 19 lower ends, is threaded to guarantee sealing.The valve plate of relief valve 3 is provided with spring 18, alleviates the obstruction of feed tube.

On upper shell 6 sidewalls, stud with scale 5, can observe the working condition in the molten device at any time.

Work process is as follows:

With bone marrow fluid to be filtered by inlet 21 through feed tube 19, enter on the screen membrane 12 in the lower house 13, valve-off 2 then, start miniature prelum 1, accelerate the filtration of bone marrow fluid under pressure, the bone marrow fluid through disinfection filtering enters lower house 13 bottoms, and bone marrow fluid required when opening valve 15 can be settled out by the end opening of drain pipe 16: turn on nut 10 when needed, after opening upper shell 6, can clear up the residue 3 on the filtering net film 12.Prelum is available force (forcing) pump.

If above filtering net film, establish an agitator, will reduce the number of times of opening upper shell.At drain pipe 16 and lower house 13 junction adjunction connectors 14, increase its intensity.

Advantage of the present utility model is a lot, at first is and traditional filter method, with injection needle, switch Formula is filtered to compare to have and do not blocked, closed sterile soft, do not damage blood cell, and is reusable, has anti-The characteristics such as pressure, sterilization are more suitable for the filtration in clinical collection marrow storage and the use procedure, and the structure letter Single, high, rational in infrastructure, easy to use, the easy-maintaining of filter efficiency.

Claims

1, a kind of bone marrow filter is characterized in that:

1. the fastening suitable for reading of the end opening of upper shell (6) and lower house (13) is tightly connected; The drain pipe (16) that has valve (15) is established in the bottom of lower casing (13); The upper shell top is provided with feed tube (19); Feed tube (19) sidewall is communicated with trachea (20), and trachea (20) other end is provided with prelum (1); On feed tube (19), the top that is positioned at trachea (20) interface is provided with valve (2);

2. in lower house (13), laterally be provided with drainage screen mould (12);

3. on the fixing support (11) in its lower section of lower house (13).

2, bone marrow filter according to claim 1 is characterized in that: the border suitable for reading of lower house (13) is fixed on the lower surface of annular chassis (17); The end opening border of upper shell (6) is fixed on the upper surface of chassis (17) by nut (8), packing ring (9), nut (10).

3, bone marrow filter according to claim 1 is characterized in that: be provided with sealing ring (7) between upper shell (6) and chassis (17).

4, bone marrow filter according to claim 1 is characterized in that: on feed tube (19), be positioned at feed tube (19) and be provided with relief valve (3) with trachea (20) connected entrance below; Be provided with steriliser (4) in safety (3) below.

5, bone marrow filter according to claim 4 is characterized in that: the valve plate of relief valve (3) is provided with spring (18).

6, bone marrow filter according to claim 1 is characterized in that: stud with scale (5) on upper shell 6 sidewalls.