CN2407762Y

CN2407762Y - Blood temperature changing device for oxygenator

Info

Publication number: CN2407762Y
Application number: CN 00226162
Authority: CN
Inventors: 寿锡健
Original assignee: 寿锡健
Current assignee: Xijing Medical Articles Co Ltd, Xi'an
Priority date: 2000-03-06
Filing date: 2000-03-06
Publication date: 2000-11-29
Anticipated expiration: 2010-03-06

Abstract

The utility model relates to a heat exchanging device, particularly a blood temperature changing device which is matched with an oxygenator of a medical appliance to use. The utility model is provided with a concave-convex temperature changing tube in a housing. A bush is arranged in the temperature changing tube, and the inner wall of the bush is connected with a water inlet pipe and a reclaiming pipe. The upper end of the housing is assembled with a blood outlet and a connecting hole, while the lower end of the housing is assembled with a blood inlet pipe. Both sides of the housing are assembled with a sealing head and a sealing cover, and the sealing head is assembled with water inlet/outlet pipes. The blood temperature changing device for an oxygenator has scientific and reasonable structure as well as high efficiency of temperature change, can cause the blood temperature to reach the required temperature rapidly and uniformly so as to ensure the successful process of operation.

Description

The oxygenator blood heat exchanger

This utility model relates to a kind of heat-exchanger rig, refers in particular to the blood heat exchanger that uses with medical apparatus and instruments blood oxygenator at night coupling.

In known prior art, the blood temperature varying device that adopts in the oxygenator, the changing device of common several forms all exist the dissatisfactory shortcoming of alternating temperature effect.And in to the improvement of oxygenator, often only pay attention to blood oxygenation improvement partly, and ignored improvement to the blood temperature varying part.

The purpose of this utility model is specially the structure of blood temperature varying parts in the oxygenator to be improved, make it have blood temperature varying efficient height, can make blood reach the desired blood heat of operation rapidly, equably, make this oxygenator have the operating characteristic of comprehensive the best.

Technical application scheme of the present utility model is concave convex shape changing temperature pipe of assembling in a housing, a lining is installed in this convex concave heterotherm tube, on this lining inwall, connect water inlet pipe and return pipe are housed, have the inlet opening on the water inlet pipe, have effluent trough on the return pipe, the upper end of housing is equipped with the lower end of blood outlet and connector housing and is furnished with into blood vessel, the both sides assembling end socket and the capping of housing, assembling water inlet pipe and water outlet pipe on the end socket.

In order further to improve alternating temperature efficient, the head both sides of each cavity lug of concave convex shape changing temperature pipe are designed to slightly enlarge, form a vortex seam between two cavity lugs and make.

In order to make blood temperature varying more evenly rapidly, make gap between inner walls and the heterotherm tube outer wall less than 0.4 millimeter, maintain the laminar flows state with the alternating temperature medium of assurance blood.

Even for water inlet before and after making water inlet pipe, make along feed water flow to increasing gradually in the aperture of inlet opening on the water inlet pipe.

In order to guarantee the sealing property of this thermode, in the design of the two ends of concave convex shape changing temperature pipe glue-filling slot is arranged, and in inboard, housing two ends, the about side of glue-filling slot, the two ends of lining and end socket or capping all are perfused with fluid sealant each other.

When this oxygenator used with blood heat exchanger, the venous blood of human body entered thermode by the blood vessel that advances of lower end, and behind the rapid rewarming of outer surface of concave convex shape changing temperature pipe, the blood outlet through the thermode upper end enters the oxygenate parts.The water of control thermode temperature is gone into to connect the water inlet pipe that is contained in the lining inwall by the water inlet pipe flow, by the inlet opening, enters in the gap between lining outer wall and the convex concave heterotherm tube inwall, and the effluent trough on return pipe is discharged from water outlet pipe again.

This oxygenator is scientific and reasonable for structure with the advantage of blood heat exchanger, and alternating temperature efficient height can make the temperature of blood sensitive rapidly, reach specified temperature equably, guarantees to perform the operation and carries out smoothly.Since concave convex shape changing temperature pipe novel structure advanced person, and can both form a micro cyclone between two cavity lugs, make whole blood remain turbulent flow, can maintain optimum state with the alternating temperature that guarantees blood always.

Accompanying drawing and drawing explanation:

The configuration state sketch map of accompanying drawing 1 this utility model embodiment.

Concave convex shape changing temperature pipe cavity lug head enlarged drawing among accompanying drawing 2 this utility model embodiment.

The aperture of inlet opening variation sketch map on the water inlet pipe among accompanying drawing 3 this utility model embodiment.

Drawing explanation: the outlet of 1-blood, 2-connector, 3-housing, the 4-concave convex shape changing temperature pipe, 5-inlet opening, 6-water inlet pipe, the 7-lining, 8-fluid sealant, 9-capping, the 10-return pipe, 11-effluent trough, 12-glue-filling slot, 13-advances blood vessel, 14-end socket, 15-water inlet pipe, the 16-water outlet pipe, 17-cavity lug, 18-vortex seam.

Embodiment:

Now in conjunction with the accompanying drawings structure of the present utility model is further elaborated, a concave convex shape changing temperature pipe 4 is installed in housing 3, a lining 7 is installed in concave convex shape changing temperature pipe 4, on lining 7 inwalls, connect water inlet pipe 6 is housed, with return pipe 10, have the inlet opening on the water inlet pipe, the aperture of inlet opening increases gradually along the water inlet direction, as shown in Figure 3, have effluent trough 11 on the return pipe 10, the upper end of housing 3 is equipped with blood outlet 1 and connector 2, and the lower end of housing 3 is equipped with into blood vessel 13, the both sides assembling end socket 14 and the capping 9 of housing 3, assembling water inlet pipe 15 and water outlet pipe 16 on the end socket 14.Head both sides as each cavity lug 17 of concave convex shape changing temperature pipe 4 shown in Fig. 2 shows slightly enlarge, and make and form a vortex seam 18 between two cavity lugs 17.Gap between the inwall of housing 3 and concave convex shape changing temperature pipe 4 outer walls is less than 0.4 millimeter.There is glue-filling slot 12 at the two ends of concave convex shape changing temperature pipe 4 as shown in Figure 1, in inboard, housing 3 two ends, and the interior place side of glue-filling slot 12, the two ends of lining 7 and end socket 14 or capping 9 all are perfused with fluid sealant 8 each other.

Claims

1, a kind of oxygenator blood heat exchanger, it is characterized in that it is an assembling concave convex shape changing temperature pipe (4) in the housing (3), a lining (7) is installed in concave convex shape changing temperature pipe (4), on lining (7) inwall, connect water inlet pipe (6) and return pipe (10) are housed, have inlet opening (5) on the water inlet pipe (6), have effluent trough (11) on the return pipe (10), the upper end of housing (3) is equipped with blood outlet (1) and connector (2), the lower end of housing (3) is equipped with into blood vessel (13), the both sides assembling end socket (14) and the capping (9) of housing (3), end socket (14) is gone up assembling water inlet pipe (15) and water outlet pipe (16)

2, oxygenator blood heat exchanger as claimed in claim 1 is characterized in that: the head both sides of each cavity lug (17) of described concave convex shape changing temperature pipe (4) slightly enlarge, and make and form a vortex seam (18) between two cavity lugs (17)

3, oxygenator blood heat exchanger as claimed in claim 1 is characterized in that: the gap between described housing (3) inwall and concave convex shape changing temperature pipe (4) outer wall is less than 0.4 millimeter.

4, oxygenator blood heat exchanger as claimed in claim 1 is characterized in that: the aperture of the inlet opening (5) on the described water inlet pipe (6) along feed water flow to increasing gradually.

5, oxygenator blood heat exchanger as claimed in claim 1 is characterized in that: the two ends design of described concave convex shape changing temperature pipe (4) has glue-filling slot (12).

6, as claim 1 and 5 described oxygenator blood heat exchangers, it is characterized in that: described housing (3) inboard, two ends, the interior outside of the glue-filling slot (12) at concavo-convex deformation tube (4) two ends, the two ends of lining (7) and end socket (14) or capping (9) all are perfused with fluid sealant (8) each other.