阅读说明：本技术 用于医疗或外科用途的抽吸袋以及抽吸袋装置 (Suction bag for medical or surgical use and suction bag arrangement ) 是由 亚里·豪塔·阿霍 于 2020-03-27 设计创作，主要内容包括：本发明涉及用于医疗或外科用途的抽吸袋(1)。所述抽吸袋(1)具有用于抽吸目标的连接部(13)。所述抽吸袋(1)包括袋部分(3)和与其固定连接的盖(4)。所述盖(4)包括用于将负压抽吸引向所述抽吸袋的负压通道(9)、用于被套筒(11)围绕的过滤器(10)的安装凹部(22)以及安装在与所述负压通道(9)连接的所述安装凹部(22)中的过滤器(10)。所述套筒(11)的截面形状不同于圆形,使得其最宽点的外径(d1)比其最窄点的外径(d2)大至少0.90％。(The invention relates to a suction bag (1) for medical or surgical use. The suction bag (1) has a connection part (13) for a suction target. The suction bag (1) comprises a bag portion (3) and a cover (4) fixedly connected thereto. The cover (4) comprises a negative pressure channel (9) for directing negative pressure suction to the suction bag, a mounting recess (22) for a filter (10) surrounded by a sleeve (11), and a filter (10) mounted in the mounting recess (22) connected to the negative pressure channel (9). The cross-sectional shape of the sleeve (11) differs from circular in that its widest point has an outer diameter (d1) that is at least 0.90% greater than its narrowest point outer diameter (d 2).)

1. An aspiration bag (1) for medical or surgical use, the aspiration bag (1) having a connection portion (13) for an aspiration target and the aspiration bag (1) comprising a bag portion (3) and a cover (4) fixedly connected thereto, the cover comprising a negative pressure channel (9) for directing negative pressure aspiration to the aspiration bag, a mounting recess (22) for a filter (10) surrounded by a sleeve (11) and a filter (10) mounted in the mounting recess (22) connected to the negative pressure channel (9), characterized in that the cross-sectional shape of the sleeve (11) differs from a circle such that the outer diameter (d1) of its widest point is at least 0.90% larger than the outer diameter (d2) of its narrowest point.

2. Suction bag according to claim 1, characterized in that the outer diameter (d1) of the widest point of the sleeve (11) is at least 3.00% larger than the outer diameter (d2) of its narrowest point.

3. Suction bag according to claim 1 or 2, characterized in that the outer diameter (d1) of the widest point of the sleeve (11) is at least 4.00% larger than the outer diameter (d2) of its narrowest point.

4. Suction bag according to any one of the preceding claims, characterized in that the outer diameter (d1) of the widest point of the sleeve (11) is at least 4.80% larger than the outer diameter (d2) of its narrowest point.

5. Suction bag according to any one of the preceding claims 1 or 4, characterized in that the outer diameter (d1) of the widest point of the sleeve (11) is not more than 10.00% larger than the outer diameter (d2) of its narrowest point.

6. Suction bag according to any one of the preceding claims 1 or 4, characterized in that the outer diameter (d1) of the widest point of the sleeve (11) is not more than 9.00% larger than the outer diameter (d2) of its narrowest point.

7. Suction bag according to any one of the preceding claims 1 or 4, characterized in that the outer diameter (d1) of the widest point of the sleeve (11) is not more than 8.60% larger than the outer diameter (d2) of its narrowest point.

8. A suction bag arrangement comprising a canister (2) and a suction bag (1) mounted inside the canister (2), characterized in that the suction bag arrangement comprises a suction bag (1) according to any one of the preceding claims 1-7.

Background

The present invention relates to a suction bag for medical or surgical use. The suction bag has a connection portion for a suction target. The suction bag comprises a bag portion and a cover fixedly connected thereto, the cover comprising a negative pressure channel for directing negative pressure suction to the suction bag, a mounting recess for a filter surrounded by a sleeve, and a filter mounted in the mounting recess connected to the negative pressure channel.

A problem with the above described device is that if an additional filter is used in connection with diathermy, the passage or air through the filter is obstructed or the filter is partially blocked due to splashing of fluid into the filter.

Disclosure of Invention

It is therefore an object of the present invention to develop a suction bag which has solved the above-mentioned problems. The object of the invention is achieved by a suction bag and a suction bag arrangement, which are characterized in that they are disclosed in the independent claims. Preferred embodiments of the invention are disclosed in the dependent claims.

The suction bag according to the present invention is used in connection with medical or surgical operations to suck fluid from a suction target. The target of the aspiration is typically the patient undergoing the procedure. The volume of the suction bag is often 1000 to 6000 ml. An advantage of the suction bag of the invention is that in such a case where an additional filter is used between the filter and the sleeve in connection with diathermy, or when the fluid to be sucked has splashed onto the bottom surface of the filter, the air flows well as well.

The suction bag and the suction bag arrangement are described below in their operating position.

The suction bag comprises a bag portion and a cover fixedly connected thereto. In other words, the pocket portion is permanently mounted to the cover such that the pocket portion and the cover cannot be separated from each other without destroying the structure. The cover may be a unitary piece, whereby the cover is formed of the same material except for the filter. Typically, the plastic material of the lid is polypropylene. The plastic material of the bag portion is typically polyethylene. With regard to the material of the cover, the cover is rigid, while the pouch portion is flexible.

The suction bag has a connection for a suction target and a connection for a negative pressure. The connection for the suction target is usually realized by a so-called patient connection formed in the cover. However, by using a patient connection, fluid may be aspirated from other objects than the patient; for example, fluid that has leaked onto the floor of the operating room may be aspirated therefrom. The patient connection may have a detachable elbow connector for the patient tubing thereon.

A connection for underpressure in the channel is usually formed at the lid edge, which continues inside the lid. The cover includes a filter mounting recess where the channels engage. The mounting recess has a filter through which a negative pressure acts on the interior of the suction bag and causes suction of the object to be suctioned through the patient connection.

The filter mounted in the mounting recess is substantially cylindrical. The shape of the cross section of the mounting recess is different from a circle. Its shape may be oblong (oblong) or other shape than circular. The mounting recess is surrounded by a sleeve having a cross section other than circular, the cross section having a diameter of the widest point and a cross section of the narrowest point. The cross-section of the sleeve may be oblong or other shapes than circular. The cross-section of the sleeve at its widest point has a diameter at least 0.90% greater than the diameter at its narrowest point. The diameter of the cross-section of the sleeve at its widest point may be 3.00 to 10.00% greater than the diameter at its narrowest point, advantageously the diameter of the cross-section of the sleeve at its widest point is 4.00 to 9.00% greater than the diameter at its narrowest point and most advantageously 4.80 to 8.60% greater than the diameter at its narrowest point. Typically, the diameter of the widest point is at least 0.90% greater than the diameter of its narrowest point. The diameter of the cross-section at the widest point may be 3.00% greater than the diameter at its narrowest point, advantageously the diameter of the cross-section at the widest point is at least 4.00% greater than the diameter at its narrowest point and most advantageously the diameter of the cross-section at the widest point is at least 4.80% greater than the diameter at its narrowest point. Typically, the cross-section of the widest point is no more than 10.00% greater than the diameter of its narrowest point, advantageously the cross-section of the widest point is no more than 9.00% greater than the diameter of its narrowest point and most advantageously the cross-section of the widest point is no more than 8.60% greater than the diameter of its narrowest point.

The above percentage P is calculated by using the outer diameter d1 of the widest point of the sleeve and the outer diameter d2 of the narrowest point of the sleeve, such that P ═ ((d1-d2)/d2) × 100. The calculation is performed with the precision of two-digit decimal numbers such that the third digit decimal number is rounded up if the third digit decimal number to be omitted is 5, 6, 7, 8 or 9, and is rounded down if the third digit decimal number to be omitted is 1, 2, 3 or 4. The widest and narrowest diameters of the sleeve may be at any angle relative to each other. The measurement is naturally made through the center point of the filter. The diameters may be, for example, substantially perpendicular to each other, as required by the oblong shape, or the widest and narrowest diameters may be at an angle of less than 90 ° relative to each other.

Drawings

The invention will now be described in more detail in connection with preferred embodiments and with reference to the accompanying drawings, in which:

figures 1 and 2 show a section of a suction bag and a canister;

FIG. 3 is a top view of the suction bag and canister;

fig. 4 shows the cover of the suction bag as seen from below;

FIG. 5 is a perspective view of the cover of the suction bag as seen obliquely from below;

figures 6 and 7 show possible cross-sectional shapes of the sleeve.

Detailed Description

Fig. 1 to 5 illustrate the same embodiment of the invention, i.e. the details shown in these figures belong to the same suction bag or suction bag arrangement. Some of the descriptive details are not necessary, which means that they are presented such that they can be included in the structure.

The suction bag arrangement comprises a suction bag 1 and a canister 2. The bag portion 3 of the suction bag 1 is mounted inside the can 2 such that a lid 4 fixedly connected with the bag portion 3 closes the can 2. The lid 4 has a groove 5, inside which groove 5 the rim of the can 2 is itself positioned. Near the groove 5 there may be a protrusion in the part of the lid 4 that enters the inside of the canister 2, which prevents that the suction bag 1 of the wrong size is mounted in the canister. One option is to have protrusions at even intervals on the periphery of the lid 4 that enters the interior of the can and the lid 4 that contacts the wall of the can 2.

The cover 4 of the suction bag 1 has a patient connection 13 on which a patient connection elbow connector 14 can be pre-mounted. A hose from the patient carrying fluid drawn from the patient is connected to the patient connection 13 by an elbow connector 14. The patient connection 13 may also be used to deliver fluids aspirated from other objects to the aspiration bag 1. Such a target may be, for example, the floor of an operating room.

The patient connection 13 may be closed by a patient connection plug 15 which is secured to the rim of the cover 4 by a cord 16. When the patient connection 13 is closed with a plug 15, on the side of the plug 15 that remains outside the cover 4, there may be a circular recess with a rib 17 in the direction of the radius of the plug. The ribs 17 prevent the plug 15 from being secured directly to the elbow connector 14 of the patient connection 13. The cord 16 may be toothed in its longitudinal direction so that it is flexible and easy to bend when the patient connection 13 is to be closed by the plug 15.

The tank 4 has a negative pressure connection 6, on which a bent connector 7 of the negative pressure connection can be pre-mounted, to which the suction tube of the negative pressure source is connected. The negative pressure channel 8 of the canister starts at the negative pressure connection 6, the negative pressure channel 8 being in contact with the negative pressure channel 9 of the suction bag 1 in the cover 4 of the suction bag and the space between the suction bag 1 and the canister 2. The negative pressure acts on the interior of the suction bag 1 through the porous filter 10. The filter 10 is a cylindrical member mounted in a mounting recess 22 at the port of the negative pressure channel 9 inside the suction bag 1. When the liquid level reaches the bottom surface 10b of the filter 10, the filter 10 is closed. At this time, the negative pressure suction also stops affecting.

The filter 10 is surrounded by a sleeve 11. Between the inner wall of the sleeve 11 and the outer surface of the filter 10 there is a gap 12 in which an additional filter can be mounted. The shape of the cross-section of the sleeve 11 is different from circular. A shape other than circular may also contribute to a good air passage in certain situations, such as in connection with the use of an additional filter or when the filter 10 is partly clogged even if the suction bag 1 is not filled yet. In other words, the negative pressure suction works normally, regardless of the specific situation, because the shape of the section of the sleeve 11, which is different from the circular one, leaves room for the flow of air between the cylindrical filter 10 and the sleeve 11.

The diameter of the cross-section of the sleeve 11 at its widest point is at least 0.90% greater than the diameter at its narrowest point. The diameter of the cross-section of the sleeve at its widest point may be 3.00 to 10.00% greater than the diameter at its narrowest point, advantageously the diameter of the cross-section of the sleeve at its widest point is 4.00 to 9.00% greater than the diameter at its narrowest point and most advantageously 4.80 to 8.60% greater than the diameter at its narrowest point. Typically, the diameter of the widest point is at least 0.90% greater than the diameter of its narrowest point. The diameter of the widest point may be 3.00% greater than the diameter of its narrowest point, advantageously the diameter of the widest point is at least 4.00% greater than the diameter of its narrowest point and most advantageously the diameter of the widest point is at least 4.80% greater than the diameter of its narrowest point. Typically, the cross-section of the widest point is no more than 10.00% greater than the diameter of its narrowest point, advantageously the cross-section of the widest point is no more than 9.00% greater than the diameter of its narrowest point and most advantageously the cross-section of the widest point is no more than 8.60% greater than the diameter of its narrowest point.

The sleeve is measured on one side of the outer surface of the sleeve 11. Because the material thickness of the sleeve 11 is substantially constant, the measurements also provide reliable information about the widest and narrowest diameter of the inner surface of the sleeve 11.

The lid 4 may have an in-line connection 20, which may be closed by a plug 21 of the in-line connection. The tandem connection 20 may be used to connect suction bags in tandem for sampling, adding curatives, and manual evacuation.

The cover 4 may also have a location 23 for attachment of accessories. Furthermore, the cover 4 may have markings thereon for mounting the suction bag 1 to the canister 2, so that the suction bag 1 can be mounted in place correctly and easily.

When the suction bag 1 is taken out of the canister 2, the suction bag 1 may have a removal rib 18. The removal rib 18 is turned upwards so that the projection 19 at the base of the removal rib 18 itself bears on the edge of the lid 4, whereby the edge of the lid 4 is raised to a certain extent and air from outside the can 2 can flow into the can 2.

Fig. 6 and 7 illustrate the widest diameter d1 and the narrowest diameter d2 of the measuring sleeve 11. In fig. 6, the cross-section of the sleeve 11 is oval, whereby the widest diameter d1 and the narrowest diameter d2 are perpendicular to each other. The measurement is performed on the outer surface 11a of the sleeve. The diameters d1 and d2 pass through the center point 10a of the filter 10. A gap 12 is maintained between the outer surface of the filter 10 and the inner surface of the sleeve 11.

In fig. 7, the cross-section of the sleeve 11 is geometrically irregular, whereby the widest diameter d1 and the narrowest diameter d2 are at an angle of less than 90 ° with respect to each other. The measurement is performed on the outer surface 11a of the sleeve. The diameters d1 and d2 pass through the center point 10a of the filter 10. A gap 12 is maintained between the outer surface of the filter 10 and the inner surface of the sleeve 11.

It will be obvious to a person skilled in the art that as the technology advances, the basic idea of the invention may be implemented in many different ways. The invention and its embodiments are thus not limited to what has been described above, but they may vary within the scope of the claims.