DE2043795B1

DE2043795B1 - Vessel for blood reserve and for taking up coronary blood

Info

Publication number: DE2043795B1
Application number: DE19702043795D
Authority: DE
Inventors: Boris S.; Kasulin Wjaeslaw S.; Super-Fainschtejn Naum A.; Balabin Ewgenij E.; Egorow Anatolij M.; Makarow Leonid W.; Moskau Bobrow
Original assignee: Wsesojusnij nautschno-issledowatelskij institut chirurgitscheskoj apparaturij instrumentow, SSSR, Moskau
Priority date: 1970-09-03
Filing date: 1970-09-03
Publication date: 1972-05-25

Description

Unter der Einlaufkammer 2 befindet sich der Schaumdämpfer, der einen Satz von gelochten Scheiben 7 bzw. 8 darstellt, welche mit einem Antischaummittel überzogen und an dem senkrechten Hohlstab 9 übereinander mit Abstand befestigt sind. Über der oberen Scheibe 7 wird ein gelochter Verteilertrichter 10 angeordnet, der ebenfalls mit dem Antischaummittel bedeckt ist. Die Oberkante des Verteilertrichters 10 liegt an der Unterkante der Wandung der Aufnahmekammer 2 an. Under the inlet chamber 2 is the foam damper, the one Set of perforated disks 7 and 8 respectively, which are coated with an anti-foaming agent are coated and attached to the vertical hollow rod 9 one above the other at a distance. A perforated distribution funnel is placed over the upper disk 7 10 arranged, which is also covered with the antifoam agent. The top of the Distribution funnel 10 rests against the lower edge of the wall of the receiving chamber 2.

Die Scheiben 7 bzw. 8 weisen konvex-konkave Form auf. Die einen größeren Durchmesser besitzenden Scheiben 7 werden dabei abwechselnd mit den den kleineren Durchmesser aufweisenden Scheiben 8 am Hohlstab montiert. Die Scheiben 7 werden am Hohlstab 9 mit ihren Ausbauchungen nach unten und die Scheiben 8 mit ihren Ausbauchungen nach oben befestigt. The disks 7 and 8 have a convex-concave shape. The one bigger Disks 7 having a diameter are alternating with the smaller ones Diameter having disks 8 mounted on the hollow rod. The disks 7 are on the hollow rod 9 with their bulges downwards and the disks 8 with their bulges attached to the top.

Das Gefäß für Blutreserve und Aufnahme des Koronarbluts arbeitet wie folgt. The vessel for the blood reserve and the absorption of the coronary blood is working as follows.

Das Blut eines Blutspenders wird ins Gefäß über den Hohlstab 9 hineingegossen. Der Koronarblutstrom tritt in den Raum der Einlaufkammer 2, in dem infolge tangentialer Anordnung des Eintrittsstutzens 4 eine kreisende Zirkulation des Blutstromes entsteht. Unter Wirkung der Reibungskräfte und Eigenschwere verzögert das Blut seine Drehung und fließt, indem es die Innenfläche des Verteilertrichters 10 bedeckt, herab und gelangt durch die Löcher im letzteren an die darunterliegenden Scheiben 7 bzw. 8 des Schaumdämpfers, wobei das Blut fortlaufend von einer oberen auf eine untere Scheibe herabfließt. Der Verteilertrichter 10 sorgt dabei dafür, daß das ganze Blut auf die Scheiben 7 bzw. 8 gelangt. The blood from a blood donor is poured into the vessel via the hollow rod 9. The coronary blood flow enters the space of the inlet chamber 2, in which as a result of tangential Arrangement of the inlet connection 4 creates a circular circulation of the blood flow. Under the effect of the frictional forces and its own gravity, the blood slows down its rotation and, by covering the inner surface of the distribution funnel 10, flows down and passes through the holes in the latter to the disks 7 and 8 below of the foam suppressor, with the blood continuously from an upper to a lower Disc flows down. The distribution funnel 10 ensures that all of the blood reaches the disks 7 and 8, respectively.

Das Antischaummittel, welches die Flächen der Scheiben 7 bzw. 8 bedeckt, berührend, befreit sich das Blut von den Luftbläschen, mit welchen es sich beim Absaugen aus der Operationswunde angereichert hat. The antifoam agent, which covers the surfaces of the panes 7 and 8, Touching it, the blood frees itself from the air bubbles with which it deals with Has enriched suction from the surgical wound.

Durch die Anordnung der Scheiben 7 bzw. 8, bei der die Scheiben größeren und kleineren Durchmessers aufeinanderfolgen und eine vorgegebene Lage ihrer Ausbauchungen enthalten, wird die Berührung des Bluts mit der ganzen Oberfläche der Scheiben 7 bzw. 8 und somit der größtmögliche Effekt der Schaumzerstörung erreicht. Due to the arrangement of the disks 7 and 8, in which the disks are larger and smaller diameter successively and a predetermined position of their bulges the contact of the blood with the whole surface of the disks 7 or 8 and thus the greatest possible effect of foam destruction is achieved.

Bei Notwendigkeit, die Aktivität der schaumzerstörenden Decke neu zu stärken, läßt sich der Deckel 3 mit in diesem befestigtem, die Scheiben 7 bzw. 8 tragendem Hohlstab 9 leicht herausnehmen, und die Scheiben 7 bzw. 8 können mit dem Antischaummittel neu bedeckt werden. If necessary, the activity of the foam-destroying blanket can be re-established to strengthen, the cover 3 can be fixed with the discs 7 or 8 easily remove the hollow rod 9, and the discs 7 and 8 can with the antifoam agent should be re-covered.

Das am Gefäßboden angesammelte, entlüftete Blut fließt durch den Auslaßstutzen 6 dem Oxygenator (nicht mit abgebildet) zu und weiter in die Schlagader des Kranken. The vented blood that has collected at the bottom of the vessel flows through the Outlet connection 6 to the oxygenator (not shown) and further into the artery of the sick.

Die Anwendung des Verteilertrichters mit Schaumdämpfer der angeführten Bauweise läßt die Effektivität der Schaumzerstörung im vorgeschlagenen Gefäß für Blutreserve und Aufnahme des Koronarbluts im Vergleich mit den bekannten Gefäßen derselben Zweckbestimmung beträchtlich erhöhen. The use of the distribution funnel with foam suppressor of the above Construction leaves the effectiveness of foam destruction in the proposed vessel for Blood reserve and uptake of coronary blood in comparison with the known vessels increase considerably for the same purpose.

Claims

Claims: 1. Vessel for blood reserve and absorption of coronary blood, in which a foam suppressor is placed under the inlet chamber for the coronary blood, the one set of perforated discs that are covered with an anti-foaming agent and are attached to a vertical rod one above the other with a spacing, d a d u r c h g e - indicates that in the upper part of the vessel above the set of perforated disks (7 and 8) a perforated distribution funnel (10) is arranged.

2. A vessel according to claim 1, characterized in that the upper edge of the distribution funnel (10) on the lower edge of the wall of the inlet chamber (2) is applied.

3. A vessel according to claim 1 and 2, characterized in that the perforated Discs (7 resp.

8) have convex-concave shape and different diameters and with their bulges facing away from each other, the disks (7) being larger Diameter with their bulges downwards and the discs (8) of smaller diameter are mounted with their bulges facing upwards.

The invention relates to medical equipment that is used to carry out of operations using artificial blood circulation, in particular on vessels for blood reserves and absorption of coronary blood.

The blood vessel in question can be used successfully in apparatus for artificial Blood circulation as well as in systems for suctioning off the coronary blood find use.

So far, a vessel for blood reserve and reception of coronary blood is known (See, for example, the magazine of the USSR "Medizintechnik", No. 5, p. 22 bis 261, 1969), which has a housing in the form of a hollow cylinder made of organic glass. In the upper part of the housing there is an inlet chamber for the coronary blood with a removable Lid and nozzle for supplying the coronary blood to the wall of the inlet chamber runs tangentially. There is a foam absorber under the inlet chamber, the through flat perforated metal discs, which are covered with an anti-foaming agent are formed.

The discs are on a vertical hollow rod that is in the lid of the Receiving chamber is attached, mounted one above the other with a spacing. The lower part of the The vessel has an outlet nozzle for discharging the blood.

The blood reserve is poured into the center opening in the lid and flows through the vertical hollow rod into the lower part of the vessel.

The coronary blood, which with the help of the known bodies which not described here, suction is performed from the surgical wound and air bubbles is rich, enters the inlet chamber through the tangential inlet nozzle, in which a swirling flow of coronary blood is formed.

The blood then goes to the top disk of the foam suppressor and through the holes in this to the next disk and so on flows from one Slice to the other down to the bottom of the jar. On the way the blood comes with the Antifoam agent, with which the discs are covered, comes into contact and frees itself of air bubbles.

In this way, the blood that collects on the bottom of the vessel becomes the Re-introduction into the patient's blood circulation system, reusable.

In the well-known vessel for blood reserve and coronary blood intake however, the foam is not destroyed effectively enough because some of the is from the inlet chamber low-flowing blood is splashed as a result of the effect of centrifugal force and bypassing it of the set of foam-absorbing disks reaches the walls of the vessel.

It is the aim of the present invention to address the mentioned disadvantage to eliminate.

The invention is based on the object of a vessel for blood reserve and to develop coronary blood uptake in which an effective foam breakdown of the whole coronary blood coming into the vessel is reached with certainty.

This object is achieved in that in the vessel for blood reserve and Acquisition of the coronary blood, in which under the inlet chamber for the coronary blood Foam damper, consisting of a set of perforated ones covered with an anti-foaming agent Discs mounted on a vertical rod one above the other at a certain distance are arranged, according to the invention in the upper part of the vessel above the set of perforated Discs a perforated distribution funnel is attached.

It is recommended that the top edge of the distribution funnel be at the lower edge of the wall of the inlet chamber rests.

The perforated discs can be concave-convex and different in shape Preserved diameter and attached with their bulges facing away from each other will. It is useful to have the larger diameter disks with their bulges downwards and the smaller diameter discs with bulges upwards to arrange.

In the following, the invention will be explained by describing an embodiment and a drawing explained in more detail, in which the vessel according to the invention for blood reserve and uptake of the coronary blood is drawn in longitudinal section.

The vessel for the blood reserve and the intake of the coronary blood contains a Housing 1, in its upper part an inlet chamber 2 for the coronary blood with the cover 3 is present. The inlet chamber 2 has an inlet connection 4 for feeding of the coronary blood from the patient, which runs tangentially to its inner wall. The housing 1 also has an inlet port 5, which is used for supplying the venous blood by the patient when using the vessel as an intermediate container during regulation the venous outflow from the patient in the artificial circulatory system is used, and an outlet port 6 for discharging the blood from the vessel to the oxygenator (not also shown).