CN201139814Y

CN201139814Y - Leukocyte filter for intracardiac blood suction

Info

Publication number: CN201139814Y
Application number: CNU2007201590853U
Authority: CN
Inventors: 张维青; 陶利; 张勇; 张波; 杨哲
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-12-25
Filing date: 2007-12-25
Publication date: 2008-10-29
Anticipated expiration: 2017-12-25

Abstract

The utility model discloses a leucocyte filter used for sucking intracardiac blood, which comprises a vessel body, a cavity arranged inside the vessel body and a blood outlet that is communicated with the cavity; the cavity is internally provided with a cylindraceous spongy layer, the periphery of which is provided with a filter screen, and the spongy layer is internally provided with a cylindraceous filter sleeve; a vessel cover is arranged at the upper end of the vessel body and is internally provided with a left blood injecting pipe, one end of which is communicated with the cavity of the filter sleeve and the other end penetrates out of the vessel cover and is connected with a left check valve; the inner wall of the vessel body is provided with a film-type thermometer which is positioned above the blood outlet of the vessel body. The leucocyte filter can solve the problem of the prior art, can not only reduce the resistance when the blood flows into the filter, but also provide more comprehensive data for the doctors as reference when in operation.

Description

Cardiotomy suction blood leucocyte filter

Technical field

This utility model relates to a kind of medical apparatus and instruments, particularly relates to a kind of cardiotomy suction blood leucocyte filter.

Background technology

At present, carrying out the heart-lung shunt and other when needing that blood carried out the operation of extracorporeal circulation, blood and extracorporeal circulation pipeline extensive contact can activated leukocyte, understands behind the leukocyte activation by organ functions such as the number of mechanisms damage heart, lung, brains; In open heart surgery with extracorporeal circulation, particularly cyanotic type congenital heart disease operation extracorporeal circulation center inner blood is many, carries leukocytic blood in a large number and enters in the body, and important organ functional defecies such as the back heart, lung, brain easily cause performing the operation.Therefore, need blood middle leukocytes is carried out strict filtration, but, the quantity of leucocyte when though present leucocyte filtration device can reduce the enforcement heart-lung shunt in the circulation and the inflammatory material of release thereof, reduce the leukocyte activation that hemodynamics causes, and reduced filter ruffle erythrocytic destruction on every side, and 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, but function is comparatively single, and is for referencial use when the various data that can't show blood undergo surgery for doctors.

Summary of the invention

The purpose of this utility model has provided a kind of cardiotomy suction blood leucocyte filter, and it can solve the problem that prior art exists, and both can reduce the fashionable resistance of blood flow, reference when can be the doctor again and providing more comprehensive data to perform the operation for the doctor.

This utility model is achieved through the following technical solutions: cardiotomy suction blood leucocyte filter, comprise the container body, offer cavity in the container body, the lower end of container body is provided with blood outlet, blood outlet communicates with cavity, spongy layer cylindraceous is installed in the cavity, the periphery of spongy layer is provided with filter screen, the filter ruffle of crossing cylindraceous is installed in the spongy layer, and container cover is installed in the upper end of container body, a left side is installed in the container cover annotates blood vessel, the end that blood vessel is annotated on a left side communicates with the cavity of crossing filter ruffle, the other end of left side notes blood vessel passes outside the container cover and is connected with left check valve, and the membrane type thermometer is installed on the inwall of container body, and the membrane type thermometer is positioned at the top of the blood outlet of container body.

For further realizing the purpose of this utility model, can also realize by the following technical solutions: left check valve is connected and composed by check-valve body, valve block, block ring, spacing ring, check-valve body is offered inner chamber, the two ends of left side check valve are offered outlet and inlet respectively, outlet and inlet communicate with inner chamber respectively, interior intracavity is installed spacing ring, valve block and block ring successively, valve block is between spacing ring and block ring, evenly offer four through holes around the valve block, the outlet of cavity is annotated blood vessel with a left side and is connected.Effusion meter is installed on the blood outlet, effusion meter is connected and composed by flowmeter shell, pick off, button, display screen, impeller shaft and impeller, display screen, button and pick off are installed on the flowmeter shell, impeller shaft is installed in the flowmeter shell, impeller is installed on the impeller shaft, wiring board is installed in the pick off, the induction terminal is installed on the wiring board, one end of impeller shaft is installed signal emission terminal, the end that impeller shaft is equipped with signal emission terminal stretches in the pick off, and wiring board is connected with button with display screen by lead respectively.The effusion meter outlet of flowmeter shell is gone up rubber stopper is installed, and the periphery of rubber stopper is installed metal sheath.Offer the negative inspiratory pressure hole on the container cover, air-vent cap is installed in the upper end in negative inspiratory pressure hole.The right blood vessel of annotating is installed on the container cover, and an end of right side notes blood vessel communicates with the cavity in crossing filter ruffle, and the other end of right notes blood vessel is connected with right check valve, and the planform of right check valve and left check valve is identical.

Good effect of the present utility model is: it was equipped with filter ruffle, can thoroughly remove blood middle leukocytes, thus the problem of the damage heart lung and brain after can solving leukocyte and being activated, and, it not only can filter the leukocyte in the arterial blood, can also filter the leukocyte in the cardiotomy suction blood.It is equipped with thermometer and effusion meter, can accurately demonstrate hemorrhage temperature, go out important parameters such as blood flow, and the doctor can be undergone surgery more accurately.This utility model can filter intracardiac blood and critical patient's massive hemorrhage rescue in leukocyte in the blood of autoblood transfusion, reduce or the damage of the important organ functions such as the back heart, lung, brain of avoiding performing the operation.This utility model also is provided with the negative inspiratory pressure hole, can be when resistance of blood flow be big, make in the container body by external force to form negative pressure, and guarantee that blood flow is unobstructed.

Description of drawings

Fig. 1 is a structural representation of the present utility model; Fig. 2 is the plan structure sketch map of Fig. 1; Fig. 3 is the structure for amplifying sketch map of effusion meter described in the utility model; Fig. 4 is the structure for amplifying sketch map of left check valve 6 described in the utility model; Fig. 5 is the A-A sectional structure sketch map of Fig. 4; Fig. 6 is the B-B sectional structure sketch map of Fig. 3.

Number in the figure: 1 container body, 2 container cover, 3 filter screens, 4 spongy layers, 5 cross filter ruffle, 6 left check valves, 7 right check valves, blood vessel is annotated on 8 left sides, the 9 right blood vessels of annotating, 10 negative inspiratory pressure holes, 11 air-vent cap, 12 membrane type thermometeies, the outlet of 13 effusion meters, 14 rubber stoppers, 15 metal sheaths, 16 flowmeter shells, 17 impellers, 18 pick offs, 19 display screens, 20 buttons, dosing hole on 21,22 times dosing holes, 23 valve blocks, 24 through holes, 25 spacing rings, 26 block rings, 27 cavitys, 28 check-valve bodies, 29 impeller shafts, 30 signals emission terminal, 31 induction terminals, 32 wiring boards, 33 effusion meters inlet, 34 blood outlets, 35 outlets, 36 inlets.

The specific embodiment

As shown in Figure 1, cardiotomy suction blood leucocyte filter described in the utility model, comprise container body 1, offer cavity 27 in the container body 1, the lower end of container body 1 is provided with blood outlet 34, blood outlet 34 communicates with cavity 27, spongy layer 4 cylindraceous is installed in the cavity 27, the periphery of spongy layer 4 is provided with filter screen 3, the filter ruffle 5 of crossing cylindraceous is installed in the spongy layer 4, container cover 2 is installed in the upper end of container body 1, the container cover 2 interior left side notes blood vessels 8 of installing, an end of left side notes blood vessel 8 communicates with the cavity in crossing filter ruffle 5, and the left other end of annotating blood vessel 8 passes outside the container cover 2 and is connected with left check valve 6, filter screen 3, spongy layer 4 is connected with the bottom surface of container body 1 with the lower end of crossing filter ruffle 5, can guarantee that blood must pass through filter ruffle 5, after spongy layer 4 and filter screen 3 filters just by flowing out in the container body 1; During use, blood flowed in the internal cavity of filter ruffle 5 through left check valve 6 and left side notes blood vessel 8, and process filter ruffle 5 filters out the leukocyte in the blood, the bubble that spongy layer 4 is removed in the blood, and the little bolt in filter screen 3 filtering bloods, then, blood can be flowed out by blood outlet 34; For the temperature that records blood so as the doctor can the more accurate palm according to the situation of operation, membrane type thermometer 12 can be installed on the inwall of container body 1; To record temperature more accurate in order to make, and can make membrane type thermometer 12 be positioned at the top of the blood outlet 34 of container body 1, the temperature when membrane type thermometer 12 can accurately record the blood outflow filter herein.

As shown in Figure 4, left side check valve 6 can be connected and composed by check-valve body 28, valve block 23, block ring 26, spacing ring 25, check-valve body 28 is offered inner chamber, interior intracavity is installed spacing ring 25, valve block 23 and block ring 26 successively, valve block 23 is between spacing ring 25 and block ring 26, valve block 23, block ring 26 are identical with the external diameter of spacing ring 25, block ring 26 and spacing ring 25 can prevent that valve block 23 is by deviating from the check-valve body 28, evenly offer four through holes 24 around the valve block 23, the area at valve block 23 middle parts is greater than block ring 26 intermediary orifice area; When valve block 23 contacted with block ring 26, valve block 23 can stop up the aperture of block ring 26 fully, and this moment, check valve was in closed condition, and when valve block 23 separated with block ring 26, check valve was an opening, unblocked blood flowing; The two ends of left check valve 6 are offered outlet 35 and inlet 36 respectively, and as shown in Figure 1, when being installed in left check valve 6 on the notes blood vessel 8 of a left side, the outlet 35 of check-valve body 28 is annotated blood vessel 8 with a left side and is connected.

As shown in Figure 1, can on blood outlet 34, effusion meter be installed, accurately to record out blood flow, as Fig. 3 and shown in Figure 6, effusion meter can be by flowmeter shell 16, pick off 18, button 20, display screen 19, impeller shaft 29 and impeller 17 connect and compose, display screen 19 is installed on the flowmeter shell 16, button 20 and pick off 18, impeller shaft 29 is installed in the flowmeter shell 16, impeller 17 is installed on the impeller shaft 29, wiring board 32 is installed in the pick off 18, induction terminal 31 is installed on the wiring board 32, one end of impeller shaft 29 is installed signal emission terminal 30, the end that impeller shaft 29 is equipped with signal emission terminal 30 stretches in the pick off 18 with to respond to terminal 31 corresponding, and wiring board 32 is connected with button 20 with display screen 19 by lead respectively; When blood flows out through effusion meter, rotate by impeller 17 impeller axles 29, the signal period that signal emission terminal of installing on the impeller shaft 29 30 and induction terminal are 31 changes, and finally shows flow number by display screen 19.Button 20 can carry out the setting of parameters to effusion meter.

The effusion meter of flowmeter shell 16 exports 13 places can install rubber stopper 14, and the periphery of rubber stopper 14 is installed metal sheath 15, and when needing filter temporarily to store up blood, available rubber stopper 14 is blocked effusion meter outlet 13.

For guaranteeing that blood can flow in the container body 1 smoothly, can on container cover 2, offer negative inspiratory pressure hole 10, air-vent cap 11 is installed in the upper end in negative inspiratory pressure hole 10, in blood flows into container body 1 when smooth, negative inspiratory pressure hole 10 can be connected with air extractor, make to form negative pressure in the cavity 27, blood is sucked in the cavity 27, when need not external force manufacturing negative pressure, available air-vent cap 11 is sealed the upper end in negative inspiratory pressure hole 10.

As shown in Figure 1, for increasing the into path of blood, the convenient blood of in container body 1, annotating, the right blood vessel 9 of annotating can be installed on container cover 2, one end of right side notes blood vessel 9 communicates with the cavity in crossing filter ruffle 5, the right other end of annotating blood vessel 9 is connected with right check valve 7, and right check valve 7 is identical with the planform of left check valve 6.As shown in Figure 2, three left sides can be installed on the container cover 2 and annotate blood vessel 8 and three right blood vessels 9 of annotating.

This utility model can offered dosing hole 21 and following dosing hole 22 on the container cover 2, last dosing hole 21 and following dosing hole 22 communicate with cavity 27 respectively, so that in the blood transfusion process, adds required medicine in blood, to reach better therapeutic effect.

The technical solution of the utility model is not restricted in the scope of embodiment described in the utility model.This utility model not technology contents of detailed description is known technology.

Claims

1, cardiotomy suction blood leucocyte filter, it is characterized in that: comprise container body (1), offer cavity (27) in the container body (1), the lower end of container body (1) is provided with blood outlet (34), blood outlet (34) communicates with cavity (27), spongy layer cylindraceous (4) is installed in the cavity (27), the periphery of spongy layer (4) is provided with filter screen (3), the filter ruffle (5) of crossing cylindraceous is installed in the spongy layer (4), container cover (2) is installed in the upper end of container body (1), a left side is installed in the container cover (2) annotates blood vessel (8), the end that blood vessel (8) is annotated on a left side communicates with the cavity of crossing filter ruffle (5), the other end of left side notes blood vessels (8) passes outside the container cover (2) and is connected with left check valve (6), and membrane type thermometer (12) is installed on the inwall of container body (1), and membrane type thermometer (12) is positioned at the top of the blood outlet (34) of container body (1).

2, cardiotomy suction blood leucocyte filter according to claim 1, it is characterized in that: left check valve (6) is by check-valve body (28), valve block (23), block ring (26), spacing ring (25) connects and composes, check-valve body (28) is offered inner chamber, the two ends of left side check valve (6) are offered outlet (35) and inlet (36) respectively, outlet (35) and inlet (36) communicate with inner chamber respectively, interior intracavity is installed spacing ring (25) successively, valve block (23) and block ring (26), valve block (23) is positioned between spacing ring (25) and the block ring (26), evenly offer four through holes (24) around the valve block (23), the outlet (35) of cavity (27) is annotated blood vessel (8) with a left side and is connected.

3, cardiotomy suction blood leucocyte filter according to claim 1 and 2, it is characterized in that: blood outlet (34) is gone up effusion meter is installed, effusion meter is by flowmeter shell (16), pick off (18), button (20), display screen (19), impeller shaft (29) and impeller (17) connect and compose, flowmeter shell (16) is gone up display screen (19) is installed, button (20) and pick off (18), impeller shaft (29) is installed in the flowmeter shell (16), impeller shaft (29) is gone up impeller (17) is installed, wiring board (32) is installed in the pick off (18), wiring board (32) is gone up induction terminal (31) is installed, one end of impeller shaft (29) is installed signal emission terminal (30), the end that impeller shaft (29) is equipped with signal emission terminal (30) stretches in the pick off (18), and wiring board (32) is connected with button (20) with display screen (19) by lead respectively.

4, cardiotomy suction blood leucocyte filter according to claim 3 is characterized in that: the effusion meter outlet (13) of flowmeter shell (16) is gone up rubber stopper (14) is installed, and the periphery of rubber stopper (14) is installed metal sheath (15).

5, cardiotomy suction blood leucocyte filter according to claim 4 is characterized in that: offer negative inspiratory pressure hole (10) on the container cover (2), air-vent cap (11) is installed in the upper end of negative inspiratory pressure hole (10).

6, cardiotomy suction blood leucocyte filter according to claim 5, it is characterized in that: container cover (2) goes up installs the right blood vessel (9) of annotating, the right end cavity interior with crossing filter ruffle (5) of annotating blood vessel (9) communicates, the right other end of annotating blood vessel (9) is connected with right check valve (7), and right check valve (7) is identical with the planform of left check valve (6).