CN208710810U - Filter type one-way medical three-way valve - Google Patents

Abstract

The filter type one-way medical three-way valve includes a three-way valve main body, two sides of the three-way valve main body are fixedly connected to one end of a liquid inlet pipe and a liquid outlet pipe, and the liquid inlet pipe and the liquid outlet pipe are respectively communicated with the inside of the three-way valve main body. , the top surface and bottom surface of the inner wall of the liquid inlet pipe are respectively fixed and connected to one end of the valve, the valve is a half-moon-shaped silicone sheet, the free edge of the valve is facing the main body of the three-way valve, and the inner wall of the liquid outlet pipe is fixedly connected to the outer periphery of the cellulose acetate filter membrane. , The cellulose acetate filter membrane is a double-layer structure, and the surface layer and the base layer of the cellulose acetate filter membrane are both cellulose acetate biaxially stretched films. The utility model can not only resist blood reflux, protect the infusion pipeline, prevent blood from being polluted, but also facilitate the addition of liquid medicine during the infusion process, and can also filter the impurities of intravenous anesthesia drugs and other clinical drugs, so as to obtain better and safer drugs. The filtering effect can ensure the life safety of patients who need infusion or blood transfusion in clinical practice, and reduce complications.

Description

The unidirectional medical three-way valve of filter-type

Technical field

The utility model belongs to technical field of medical equipment, specifically a kind of unidirectional medical three-way valve of filter-type.

Background technique

Before implementing operation and anesthesia, need to establish the infusion channels such as periphery or central vein, clinically commonly using has infusion Pipeline has infusion apparatus and blood transfusion apparatus.Under normal circumstances, infusion apparatus or blood transfusion apparatus can filter insoluble in liquid or blood Particle.But when implementing general anesthesia, it is often necessary to use a large amount of three intravenous anesthetics and other clinical applications, clinically often There are Propofol, rocuronium and potassium chloride etc., these drugs generally require to be injected intravenously or persistently pump using micro pump Note.And after conventional triple valve is installed on infusion access, drug just across filter device on infusion apparatus or blood transfusion apparatus so that The drug by filtering has not been directly entered in human vas.Since domestic three intravenous anesthetics and other clinical applications are big Be stored in glass ampule more, be not it is pre- rush formula device so that filtered drug may be containing breaking drug ampoule into two with one's hands The impurity such as glass chip, dust and the microorganism generated when bottle.If these impurity are directly entered blood circulation of human body, slightly It can make human body abnormal hemodynamics, the adverse reaction after causing patient to be infused, severe can lead to local blood circulation Blocking, so as to cause organ failure, or even jeopardizes the life security of patient.It can filter and prevent there is presently no one kind The medical three-way valve of backflow of blood.

Utility model content

The utility model provides a kind of unidirectional medical three-way valve of filter-type, to solve defect in the prior art.

The utility model is achieved by the following technical programs:

The unidirectional medical three-way valve of filter-type, including three-way valve body, the two sides of three-way valve body are respectively fixedly connected with feed liquor One end of pipe and outlet tube, inlet tube and outlet tube respectively with communicated inside three-way valve body, the top surface of the inner wall of inlet tube and Bottom surface is respectively fixedly connected with one end of valve, and valve is semilune silica gel thin slice, and the free edge of valve is respectively facing triple valve master Body, the inner wall of outlet tube are fixedly connected with the periphery of cellulose acetate filter film, and cellulose acetate filter film is double-layer structure, acetic acid The surface layer of cellulose filtering film and base are cellulose acetate biaxially oriented film.

The unidirectional medical three-way valve of filter-type as described above, the top surface periphery of the inlet tube is fixedly connected with the one of hose End, the other end of hose are fixedly connected with the bottom surface of lower shell, and hose is communicated with inside inlet tube and lower shell respectively, lower shell Upper opening, the top surface two sides of lower shell are respectively fixedly connected with one end of cutting, and two cuttings are mutual with the center line of lower shell Symmetrically, the other end of cutting is wedge structure, and upper shell is installed in the top surface of lower shell, the lower openings of upper shell, upper shell Bottom surface both side opens up groove respectively, and cutting can be inserted into respectively in corresponding groove, and the inside of cutting can respectively with it is right The inner wall for the groove answered is engaged, and hingedly installs same cutting by hinged seat on the outside of the inside of each groove, often Two cuttings in a groove are staggered and can overlap cooperation, and the top surface of lower shell and the bottom surface of upper shell can closely connect Touching cooperation, the inner wall top of each groove are fixedly connected with one end of elastic strip, and the other end of elastic strip is respectively fixedly connected with On the inside of the upper end of corresponding cutting, the lower part two sides of upper shell open up through-hole respectively, through-hole respectively with corresponding inside grooves phase It is logical, a compression bar is passed through in each through-hole, the inner end of compression bar is hingedly connected on the outside of the upper end of corresponding cutting.

The unidirectional medical three-way valve of filter-type as described above, the lower shell and upper shell are transparent material.

Check valve is fixedly mounted in the lower part of the unidirectional medical three-way valve of filter-type as described above, the hose.

One layer of medical grade rubber is fixedly mounted in the top surface of the unidirectional medical three-way valve of filter-type as described above, the lower shell Pad.

The utility model has the advantages that: the utility model valve can play the role of preventing backflow of blood, to avoid Blood is contaminated.Cellulose acetate filter film is a kind of staple fibre being easy to get very much, and cost is relatively low, high with selectivity, The characteristics of permeable amount is big, the processing is simple.Cellulose acetate filter membrane aperture can filter out exhausted big portion in 0.22 ~ 0.45um Divide insoluble granule impurity in infusion liquid, and do not cause to cause transfusion speed to slow down after being infused for a long time, thus can obtain The transfusion effect of better and safer.In short, the utility model can not only resist blood reflux, infusion pipeline is protected, blood is avoided It is contaminated, and can be convenient for the medical fluid addition in infusion process, moreover it is possible to filter three intravenous anesthetics and other clinical medicines Impurity, obtain the filter effect of better and safer, can ensure clinically need be infused or treatment of blood transfusion patient life peace Entirely, complication is reduced, improves the postoperative rehabilitation rate and long term survival rate of patients undergoing, while can reduce medical expense, is had There are certain economic results in society.

Detailed description of the invention

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is Some embodiments of the utility model, for those of ordinary skill in the art, in the premise of not making the creative labor property Under, it is also possible to obtain other drawings based on these drawings.

Fig. 1 is the structural schematic diagram of the utility model；Fig. 2 is the enlarged drawing of the A direction view of Fig. 1；Fig. 3 is I part of Fig. 1 Enlarged drawing.

Appended drawing reference: cylinder in 1 three-way valve body, 2 inlet tube, 3 outlet tube, 4 valve, 5 hose, 6 lower shell, 7 cutting 8 13 cellulose acetate filter film of body 9 groove, 10 elastic strip, 11 through-hole, 12 compression bar, 14 check valve.

Specific embodiment

It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model Example, every other embodiment obtained by those of ordinary skill in the art without making creative efforts belong to The range of the utility model protection.

The unidirectional medical three-way valve of filter-type, including three-way valve body 1, the two sides of three-way valve body 1 be respectively fixedly connected with into One end of liquid pipe 2 and outlet tube 3, inlet tube 2 and outlet tube 3 are communicated with inside three-way valve body 1 respectively, the inner wall of inlet tube 2 Top and bottom be respectively fixedly connected with one end of valve 4, valve 4 is semilune silica gel thin slice, the free edge of valve 4 court respectively To three-way valve body 1, the inner wall of outlet tube 3 is fixedly connected with the periphery of cellulose acetate filter film 13, cellulose acetate filter film 13 be double-layer structure, and the surface layer of cellulose acetate filter film 13 and base are cellulose acetate biaxially oriented film.This is practical Novel valve 4 can play the role of preventing backflow of blood, so that blood be avoided to be contaminated.Cellulose acetate filter film 13 is A kind of staple fibre being easy to get very much, cost is relatively low, has the characteristics that selectivity is high, permeable amount is big, the processing is simple.Acetate fiber Plain 13 aperture of filter membrane can filter out insoluble granule impurity in most infusion liquids in 0.22 ~ 0.45um, and Do not cause to cause transfusion speed to slow down after being infused for a long time, thus the transfusion effect of better and safer can be obtained.In short, this is practical It is novel to resist blood reflux, infusion pipeline is protected, blood is avoided to be contaminated, and can be convenient in infusion process Medical fluid addition, moreover it is possible to which the impurity for filtering three intravenous anesthetics and other clinical medicines obtains the filter effect of better and safer, energy It is enough to ensure the life security for clinically needing infusion or treatment of blood transfusion patient, complication is reduced, the postoperative of patients undergoing is improved Rehabilitation rate and long term survival rate, while can reduce medical expense, there are certain economic results in society.

Specifically, the top surface periphery of inlet tube 2 described in the present embodiment is fixedly connected with hose 5 as shown in Fig. 1 or Fig. 3 One end, the other end of hose 5 is fixedly connected with the bottom surface of lower shell 6, hose 5 respectively with 6 inside phase of inlet tube 2 and lower shell Logical, the upper opening of lower shell 6, the top surface two sides of lower shell 6 are respectively fixedly connected with one end of cutting 7, two 7 or less cylinders of cutting The center line of body 6 is mutually symmetrical with, and the other end of cutting 7 is wedge structure, and upper shell 8, upper shell 8 are installed in the top surface of lower shell 6 Lower openings, the bottom surface both side of upper shell 8 opens up groove 9 respectively, and cutting 7 can be inserted into respectively in corresponding groove 9, and The inside of cutting 7 can be engaged with the inner wall of corresponding groove 9 respectively, pass through hinge on the outside of the inside of each groove 9 Joint chair hingedly installs same cutting 7, and two cuttings 7 in each groove 9 are staggered and can overlap cooperation, lower shell 6 Top surface and upper shell 8 bottom surface can close contacting fit, the inner wall top of each groove 9 is fixedly connected with elastic strip 10 One end, the other end of elastic strip 10 is respectively fixedly connected on the inside of the upper end of corresponding cutting 7, the lower part two sides point of upper shell 8 Through-hole 11 is not opened up, and through-hole 11 is communicated with inside corresponding groove 9 respectively, passes through a compression bar 12, compression bar in each through-hole 11 12 inner end is hingedly connected on the outside of the upper end of corresponding cutting 7.User presses down on compression bar 12, compression bar 12 simultaneously respectively Corresponding cutting 7 is driven to rotate centered on corresponding hinge joint respectively, the lower end of corresponding cutting 7 flips to the outside respectively, Until the wedge structure of two cuttings 7 in each groove 9 no longer overlaps cooperation, so as to remove upper shell 8, medical staff The medical fluid injected can will be needed to be added in lower shell 6, medical fluid can be entered in inlet tube 2 by hose 5, can also be used Syringe is inserted directly into the mode directly injected into inlet tube 2 in hose 5, after the completion of medical fluid addition, by upper shell 8 and lower cylinder Body 6 fastens, and the cutting 7 of 6 top surface two sides of lower shell is reinserted to corresponding groove 9, easy to use, easy to operate, can Extraneous dust and bacterium is avoided to enter in lower shell 6, to avoid threatening to the health of patient.

Specifically, lower shell 6 and upper shell 8 described in the present embodiment are transparent material.The structure can be convenient for medical care Personnel observe medical fluid and feed situation.

Further, as shown in Figure 1, check valve 14 is fixedly mounted in the lower part of hose 5 described in the present embodiment.The structure energy Enough prevent medical fluid from entering in lower shell 6 by hose 5, to bring inconvenience to liquid medicine injection.

Further, one layer of medical grade rubber pad is fixedly mounted in the top surface of lower shell 6 described in the present embodiment.The structure energy The being completely embedded property between lower shell 6 and upper shell 8 is enough further enhanced, dust and bacterium is avoided to enter in lower shell 6.

Finally, it should be noted that above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations； Although the utility model is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: It is still possible to modify the technical solutions described in the foregoing embodiments, or part of technical characteristic is carried out etc. With replacement；And these are modified or replaceed, various embodiments of the utility model technology that it does not separate the essence of the corresponding technical solution The spirit and scope of scheme.

Claims (5)

1. A filter type one-way medical three-way valve, characterized in that it comprises a three-way valve main body (1), and both sides of the three-way valve main body (1) are fixedly connected to a liquid inlet pipe (2) and a liquid outlet pipe (3) respectively. One end of the liquid inlet pipe (2) and the liquid outlet pipe (3) are respectively communicated with the inside of the three-way valve body (1), and the top and bottom surfaces of the inner wall of the liquid inlet pipe (2) are respectively fixed and connected to one end of the valve (4). , the valve (4) is a half-moon-shaped silica gel sheet, the free edges of the valve (4) face the main body (1) of the three-way valve respectively, and the inner wall of the liquid outlet pipe (3) is fixedly connected to the outer periphery of the cellulose acetate filter membrane (13). The cellulose filter membrane (13) has a double-layer structure, and both the surface layer and the base layer of the cellulose acetate filter membrane (13) are biaxially stretched films of cellulose acetate. 2. The filter type one-way medical three-way valve according to claim 1, characterized in that: the outer periphery of the top surface of the liquid inlet pipe (2) is fixedly connected to one end of the hose (5), and the hose (5) The other end of the lower cylinder (6) is fixedly connected to the bottom surface of the lower cylinder (6). The two sides of the top surface of (6) are respectively fixed and connected to one end of the insert (7), the center lines of the cylinder (6) below the two inserts (7) are symmetrical with each other, and the other end of the insert (7) is a wedge-shaped structure, The upper cylinder (8) is installed on the top surface of the lower cylinder (6), the lower part of the upper cylinder (8) is open, and grooves (9) and inserts (7) are respectively provided on both sides of the bottom surface of the upper cylinder (8). They can be inserted into the corresponding grooves (9) respectively, and the inner sides of the inserts (7) can be respectively contacted and matched with the inner sides of the inner walls of the corresponding grooves (9), and the inner and outer sides of each groove (9) pass through the hinge seat The same inserts (7) are hingedly installed, the two inserts (7) in each groove (9) are staggered and can be overlapped and matched, and the top surface of the lower cylinder (6) is connected to the upper cylinder (8) The bottom surface of each groove (9) can be in close contact and fit, and the inner upper part of the inner wall of each groove (9) is fixedly connected to one end of the elastic strip (10), and the other end of the elastic strip (10) is fixedly connected to the inner side of the upper end of the corresponding insert strip (7). Through holes (11) are respectively provided on both sides of the lower part of the upper cylinder (8), the through holes (11) are respectively communicated with the inside of the corresponding grooves (9), and each through hole (11) passes through a pressure rod ( 12), the inner ends of the pressing rods (12) are hingedly connected to the outer sides of the upper ends of the corresponding inserts (7). 3 . The filter type one-way medical three-way valve according to claim 2 , wherein the lower cylinder body ( 6 ) and the upper cylinder body ( 8 ) are made of transparent materials. 4 . 4 . The filter type one-way medical three-way valve according to claim 3 , wherein a one-way valve ( 14 ) is fixedly installed on the lower part of the hose ( 5 ). 5 . 5 . The filter type one-way medical three-way valve according to claim 3 , wherein a layer of medical rubber pad is fixedly installed on the top surface of the lower cylinder ( 6 ). 6 .