CN201342128Y

CN201342128Y - Novel ultrafiltration device

Info

Publication number: CN201342128Y
Application number: CNU2009200185248U
Authority: CN
Inventors: 张爱华; 谷翠莲; 张长平; 刘连波; 陈霞; 张彬
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-01-19
Filing date: 2009-01-19
Publication date: 2009-11-11
Anticipated expiration: 2019-01-19

Abstract

The utility model discloses a novel ultrafiltration device, which comprises a filter, an oxygenator, a microembolus filter and a blood storing device, wherein one end of the blood storing device is provided with a liquid inducing pipe which is connected with human body vein, the other end is orderly connected with a flow turning pump I, the oxygenator and the microembolus filter, the other end of the microembolus filter is connected and provided with the flow inducing pipe which is connected with the human body vein, the upper end of the microembolus filter is communicated with the blood storing device, an ultrafiltration device outlet is connected with an oxygenator inlet, an ultrafiltration device inlet is respectively connected with outlets of the human body vein and the blood storing device through a flow turning pump II. The device has the advantages that the temperature can be controlled, the ulterfiltration is from the vein to the artery, and oxygenated fresh blood directly injects into the artery, and the device is in accordance with the physiology and the like better, can prevent pulmonary congestion, coronary artery and blood insufficiency of important organs, is beneficial to the stability of the circulating state, can continuously carry out the ultrafiltration and continuously carry out the ultrafiltration after stopping extracorporeal circulation, which does not need waiting, relatively adds the flow amount, and reduces the ultrafiltration and the surgery time.

Description

Novel ultrafiltration apparatus

One, technical field

This utility model relates to a kind of medical apparatus and instruments, specifically a kind of ultrafiltration apparatus that is used for open heart surgery with extracorporeal circulation.

Two, background technology

Ultrafiltration is that the infant operation on heart must not lack as an important technology of extracorporeal circulation, and its topmost effect is a concentrate blood and get rid of a large amount of inflammatory mediators that generate in the extracorporeal circulation effectively.Existing extracorporeal circulation technology is made up of the blood reservior, turn of tidal stream pump, oxygenator, the Micro-Bolt Filter that connect in turn, the outlet that the inlet of blood reservior connects human vein, Micro-Bolt Filter connects human body artery, and ultrafilter directly is connected tremulous pulse with vein or blood reservior inlet through the turn of tidal stream pump.The ultrafilter inlet connects the pipeline that links to each other with arterial cannulation, and the pipeline that the port of export connects the blood reservior inlet or is connected with venous cannulation, with the aerofluxus of ringer's solution preliminary filling.There is following drawback in this kind connection:

1, do not have heater, blood is lowered the temperature behind ultrafilter, and is unfavorable to human body.

2, because children's's extracorporeal circulation priming volume is few, the planar restriction of blood reservior, the liquid that the employing conventional ultrafiltration can leach does not seldom reach the good effect of concentrate blood, and leaching of inflammatory mediator is also limited.

3, can produce the inflammatory material after the blood isolated time length, and the inflammatory material is deleterious for human body; Time, the long more harm to human body was big more; So need carry out ultrafiltration to the inflammatory material, existing modified ultrafiltration is all carried out after operation is finished, can not ultrafiltration while performing the operation.Because of the ultrafiltration time shorter, its effect that leaches inflammatory mediator is limited; Using separately owing to stop the back at normal turn of tidal stream has increased the chance that contacts with new foreign body because of ultrafiltration makes blood, and the concentration of part inflammatory mediator is risen to some extent.

3, ultrafiltration is to enter vein from tremulous pulse.Oxygenate fresh blood after the ultrafiltration does not directly enter in the body, but inject blood reservior or vein, the people is the shunting that has caused the left-hand right side, may cause pulmonary congestion, coronary artery and important organ blood supply insufficiency, be unfavorable for the rise of the stable and body temperature of recurrent state, and the destruction that has prolonged operating time and blood, the generation of inflammatory mediator increased.

4, the aortic cannulation inner blood flows to constantly to change and is unfavorable for stable circulation, even cavitation takes place and works the mischief, and is unfavorable for the stable of recurrent state.

5, stop to need after the extracorporeal circulation to wait for that recurrent state is stable can continue ultrafiltration, prolonged operating time artificially, produce infringement for human body.

Three, summary of the invention

This utility model is at above weak point, provide a kind of continue in can art ultrafiltration, ultrafiltration by vein to tremulous pulse, the novel ultrafiltration apparatus of oxygenate, rewarming, degassing function is arranged

The technical scheme that its technical problem that solves this utility model adopts is:

A kind of novel ultrafiltration apparatus comprises blood reservior, and blood reservior one end is provided with the drainage tube, the other end that are connected with human vein and is connected with turn of tidal stream pump I, oxygenator, Micro-Bolt Filter in turn; The outlet of Micro-Bolt Filter is connected with human body artery through pipeline; The Micro-Bolt Filter upper end is communicated with the blood reservior upper end; Also include ultrafilter, the ultrafilter outlet connects the inlet of oxygenator, the inlet of ultrafilter connects threeway I through turn of tidal stream pump II, and outlet, the other end that two ends one end in addition of threeway I connects blood reservior connect threeway II; Inlet one end of two mouth one end connection blood reserviors in addition of threeway II connects the drainage tube that is connected with human vein;

Be provided with threeway III and threeway IV; Outlet, an end that threeway III one end connects blood reservior connect the main pump pipe through turn of tidal stream pump I connection threeway IV, and the other end connects threeway I; The ultrafilter outlet conduit connects threeway IV, and two ends one end in addition of threeway IV connects the inlet of main pump pipe, end connection oxygenator

In the extracorporeal circulation process drain pipe clamp between threeway I and threeway II is closed, the blood circulation direction is: the one tunnel is conventional extracorporeal circulation: human vein → blood reservior → turn of tidal stream pump I → oxygenator → Micro-Bolt Filter → human body artery; Another road is through human vein → blood reservior → turn of tidal stream pump II → ultrafilter → oxygenator → Micro-Bolt Filter → human body artery.This blood flow direction can be realized the inflammatory material in the lasting ultra-filtration filters blood through ultrafilter, has reduced the harm to human body; After extracorporeal circulation finishes, folder closes the drainage tube between threeway II and blood reservior inlet, threeway I and threeway III, drainage tube between open threeway I and threeway II, blood circulation direction: the caval vein → little bolt filter → aorta of turn of tidal stream pump II → ultrafilter → membrane oxygenator → tremulous pulse, the blood process oxygenator of this moment can heat, oxygenate, is more suitable for human body temperature; Bubble in the blood can be entered the upper end of blood reservior by the drainage tube of Micro-Bolt Filter upper end through Micro-Bolt Filter.This novel hyperfiltration technique of clinical practice, contrast traditional hyperfiltration process and have obvious superiority, effectively inflammatory mediator in concentrate blood and the eliminating body reduces operating time, help rewarming, guarantee the perfusion of important organ, prevent perfusion lung, effectively alleviate important organ edema and damage, improve the especially safety of infant congenital heart disease operation of patient, reduce complication, improve the ability of infant congenital heart disease surgical intervention, can be used as present comparatively ideal hyperfiltration technique and use.

Four, description of drawings

Fig. 1 is the structural representation of a kind of embodiment of this utility model.

Five, the specific embodiment

The following correlation technique content of not addressing all can adopt or use for reference prior art.

As shown in the figure, a kind of novel ultrafiltration apparatus comprises blood reservior 1, and blood reservior 1 one ends are provided with the drainage tube, the other end that are connected with human vein and are connected with turn of tidal stream pump I 2, oxygenator 3, Micro-Bolt Filter 4 in turn; The outlet of Micro-Bolt Filter 4 is connected with human body artery through pipeline; Micro-Bolt Filter 4 upper ends are communicated with blood reservior 1 upper end by drainage tube, and drainage tube is provided with pipe clamp D, and pipe clamp D can select to open still to press from both sides and close according to having or not of gas; Be provided with ultrafilter 5, the ultrafilter inlet duct connects " Y " shape threeway I 7 through turn of tidal stream pump II 6, " Y " shape threeway I 7 two ends in addition connects " Y " shape threeway II 8 and " Y " shape threeway III 9 respectively, and inlet, the other end that " Y " shape threeway II 8 one ends connect blood reservior 1 connect human vein through drainage tube; Outlet, an end that " Y " shape threeway III 9 one ends connect blood reservior 1 connect the main pump pipe through turn of tidal stream pump I 2 connection threeway IV 10, and ultrafilter 5 outlet conduits connect " Y " shape threeway IV 10, and " Y " shape threeway IV 10 other ends connect the inlet of oxygenator 3.

Drainage tube pipe clamp A folder with 8 of " Y " shape threeway I 7 and " Y " shape threeway II in the extracorporeal circulation process closes, open pipe clamp B and pipe clamp C, blood one tunnel enters human body artery through turn of tidal stream pump I 2 through oxygenator 3, Micro-Bolt Filter 4, and another road enters tremulous pulse through turn of tidal stream pump II 6, ultrafilter 5, oxygenator 3, Micro-Bolt Filter 4; The ultrafiltration of extracorporeal circulation limit is carried out on the limit, makes that the inflammatory material in the blood reduces, and reduces the harm to human body;

After extracorporeal circulation finishes, folder closes the drainage tube pipe clamp C of drainage tube pipe clamp B between " Y " shape threeway II 8 and the blood reservior 1, " Y " shape threeway I 7 and " Y " shape threeway II 8, open pipe clamp A (, blood circulation direction: the caval vein → little bolt filter of turn of tidal stream pump II 6 → ultrafilter 5 → membrane oxygenator, 3 → tremulous pulse 4 → aorta, the blood process oxygenator 3 of this moment can heat, oxygenate, is more suitable for human body temperature; Bubble in the blood can be entered the upper end of blood reservior 1 by the drainage tube of Micro-Bolt Filter 4 upper ends through Micro-Bolt Filter 4.This novel hyperfiltration technique of clinical practice, contrast traditional hyperfiltration process and have obvious superiority, can carry out the ultrafiltration of extracorporeal circulation limit in the limit, effectively inflammatory mediator in concentrate blood and the eliminating body, reduce operating time, help rewarming, guarantee the perfusion of important organ, prevent perfusion lung, effectively alleviate important organ edema and damage, improve the especially safety of infant congenital heart disease operation of patient, reduce complication, improve the ability of infant congenital heart disease surgical intervention.

Claims

1, a kind of novel ultrafiltration apparatus comprises ultrafilter (5), oxygenator (3), Micro-Bolt Filter (4) and blood reservior (1); Blood reservior (1) inlet is provided with the drainage tube, the port of export that are connected with human vein and is connected with turn of tidal stream pump I (2), oxygenator (3), Micro-Bolt Filter (4) in turn; The port of export of Micro-Bolt Filter (4) is connected with the drainage tube that is connected with human body artery; Micro-Bolt Filter (4) upper end is communicated with blood reservior (1) upper end; It is characterized in that: described ultrafilter (5) outlet connects the inlet of oxygenator (3), the inlet of ultrafilter (5) connects the outlet of human vein and blood reservior (1) respectively through turn of tidal stream pump II (6).

2, a kind of novel ultrafiltration apparatus according to claim 1 is characterized in that: be provided with threeway I (7), threeway II (8), threeway III (9) and threeway IV (10); Ultrafilter (5) inlet duct connects threeway I (7) through turn of tidal stream pump II (6), the two ends in addition of threeway I (7) connect threeway II (8) and threeway III (9) through pipeline respectively, and inlet, the other end that threeway II (8) one ends connect blood reservior (1) connect human vein through drainage tube; Outlet, an end that threeway III (9) one ends connect blood reservior (1) connect the main pump pipe through turn of tidal stream pump I (2) connection threeway IV (10), and ultrafilter (5) outlet conduit connects threeway IV (10), and the other end of threeway IV (10) connects the inlet of oxygenator (3).