Examination table for examining at least one part of a body and ventilation system for ventilating a room for examining at least one part of a body

Abstract

Examination table (100) for examining at least one part of a body, wherein the examination table (100) has a receiving area (101) for receiving at least one part of a body, wherein the examination table (100) includes an exhaust air device (104) for removing exhaust air (118), wherein the exhaust air device (104) has an extraction device (105) for capturing and extracting the exhaust air (118), characterized by the fact that the extraction device (105) is designed to generate a swirling flow (138) of the exhaust air (118) in an interior space (106) of the extraction device (105), wherein the extraction device (105) fully encloses the receiving area (101) in a horizontal direction (201) and that the extraction device (105) comprises a housing (136) that partially encloses the swirling flow (138).

Description

Technical field

[0001] The invention relates to an examination table for examining at least one part of a body and a ventilation system for ventilating a room for examining at least one part of a body. State of the art

[0002] Formaldehyde is used as a basic chemical for the fixation, preservation, and storage of human or animal tissue, as well as body donations. However, despite its many positive properties, formaldehyde is classified under European chemicals legislation as a carcinogen (Category 1B) and a germ cell mutagen (Category 2). Consequently, the Committee on Hazardous Substances has established an occupational exposure limit for formaldehyde of 0.37 mg / m³. 3 or 0.3 mm / m 3 (Peak limit exceedance factor 2) set.

[0003] The examination tables known from the prior art are not suitable for reliably complying with the aforementioned occupational exposure limits. For example, extensive studies conducted by various statutory accident insurance institutions in the public sector, together with the Institute for Occupational Safety and Health of the German Social Accident Insurance (DGUV), at university institutes and universities have shown that compliance with the occupational exposure limit in anatomy labs presents a significant challenge and often cannot be guaranteed. This is because the examination tables known from the prior art do not capture the exhaust air effectively enough. Another reason is that the extraction concept of the examination table and the supply air system are not optimally coordinated.

[0004] From CN 2 05 878 493 U, an exhaust system with an annular negative pressure zone for an examination table is known, comprising a negative pressure air outlet zone, a fan with frequency converter control, a connecting pipe, and a negative pressure control device. The negative pressure zone is designed for exhaust air extraction and is connected internally to the negative pressure control device. The negative pressure exhaust zone is connected to the fan via the connecting pipe. The negative pressure control device detects the static negative pressure. The negative pressure control device and the fan are interconnected, and the setting parameters of the negative pressure control device enable pressure-controlled speed regulation of the fan via a frequency converter. A uniform extraction system for annular negative pressure ventilation is disclosed.

[0005] DE 43 27 397 A1 discloses a device for the ventilation-related shielding of an area of ​​higher temperature from one of lower temperature, in particular a nursing bed for patients with severe burns, an immune system impaired by therapy or illness, or other factors increasing the risk of infection, characterized by an air distribution pipe as a flow source, which at least partially surrounds the base of the area to be shielded, can be connected to a blower unit and is provided with air outlet openings, and by an extraction hood provided vertically above the base, the area of ​​which corresponds to the base of the area to be shielded, as a flow sink. Description of the invention: Problem, solution, advantages

[0006] The present invention is based on the objective of further developing an examination table for examining at least one part of a body in such a way that the formaldehyde concentration is effectively reduced and thus the prescribed occupational exposure limits can be reliably complied with.

[0007] The aforementioned problem is solved by the examination table according to the invention for examining at least a part of a body, wherein the examination table comprises a receiving area for receiving at least a part of a body and an exhaust air device for removing exhaust air. The exhaust air device has a suction device for capturing and extracting the exhaust air, which is designed to generate a swirling flow of the exhaust air in an interior space of the suction device. It is provided that the suction device completely encloses the receiving area in the horizontal direction and that the suction device (105) comprises a housing that partially encloses the swirling flow.

[0008] In particular, the exhaust air contains airborne pollutants. The term "airborne pollutants" refers specifically to formaldehyde or similar substances, which are preferably used for the preservation and fixation of at least part of a body.

[0009] The body in question is primarily a cadaver. The examination table is preferably used for examining a complete body. Specifically, the body part or the complete body is a body donation, particularly of human or veterinary origin. A body donation is defined as at least a part of a body, preferably the complete body, of a human or animal that is used in an anatomical institute for teaching and research purposes and / or for plastination.

[0010] The term "examination" primarily refers to dissection. It can also encompass plastination and / or autopsy. The examination table is primarily a dissection table.

[0011] The examination table serves to accommodate at least one part of the body, which is positioned at a comfortable height for examination or can be adjusted to that height. The examination table has a receiving area for this body part. This receiving area advantageously extends essentially horizontally, allowing the body part to be placed on it as if on a "work surface".

[0012] In particular, the receiving area can be rectangular. Furthermore, the receiving area can be trough-shaped. Specifically, the receiving area has an opening, with the receiving area sloping downwards towards this opening. This ensures that liquids can drain away. Preferably, the opening is connected to a tubular connecting element, in particular a pipe. This tubular connecting element guides the liquids into a lower area of ​​the examination table, where they can flow into a collection unit, for example, a collection bucket or a plastic bottle, preferably with a bayonet fitting and pressure equalization to reduce pollutant emissions. The pipe does not have to lead directly into the collection unit, but can terminate at a distance from it.

[0013] The term "exhaust air" refers to air that preferably contains airborne pollutants resulting from emissions from the part of the body, for example, through direct contact of the air with the body part, through diffusion, or through mass transport processes due to a partial pressure gradient. The exhaust air, which is captured and extracted by the exhaust air device, particularly by the extraction device, is located primarily in the immediate vicinity of the intake area. Specifically, the exhaust air surrounds the part of the body.

[0014] Furthermore, the extraction device is designed to generate a swirling flow of the exhaust air within its interior. The term "swirling flow" refers specifically to a circulation flow. Swirling flows are known, for example, from natural disasters such as hurricanes. They are characterized by streamlines that spiral logarithmically towards a center. Swirling flows are particularly advantageous for capturing exhaust air because they generate very high circumferential speeds of the rotating field. A low pressure forms in the vortex core, which is especially high in swirling flows. Furthermore, swirling flows exhibit only a slight decrease in velocity with distance from the center. Due to these characteristics, swirling flows are particularly well-suited for capturing and extracting exhaust air.

[0015] The extraction device is specifically designed to draw in the exhaust air from the intake area in a tangential direction. In particular, the tangential direction coincides at least substantially with the horizontal direction. Specifically, the tangential direction may deviate from the horizontal by a maximum of 10°, and preferably by a maximum of 5°.

[0016] The extraction device is advantageously designed as a swirl hood. For this purpose, it primarily features a swirl hood contour.

[0017] According to the invention, the extraction device completely surrounds the receiving area in a horizontal direction. In other words, the extraction device encircles the receiving area. The extraction device is, in particular, a circumferential edge extraction device. Specifically, the extraction device can be composed of several sections, each section adjoining the receiving area in one direction. The sections are interconnected so that the swirling flow can form along the entire extraction device through all sections.

[0018] The suction device comprises a housing that partially encloses the swirling flow. The housing can have a circular, oval, or rectangular shape, in particular a partially circular, oval, or rectangular shape. In other words, the housing has a circular, oval, or rectangular cross-section. More precisely, the housing's cross-section forms a segment of a circle, oval, or rectangle. Advantageously, the housing can have a partially cylindrical shell that partially encloses and guides the swirling flow.

[0019] The extraction device for capturing and extracting exhaust air, and in particular its housing, has an opening that leads into the interior of the extraction device. Because the extraction device in cross-section represents only a section of a circle, oval, or rectangle, the cut-out area of ​​the respective contour is designed as an opening. The extraction device is advantageously arranged such that the opening points horizontally. Most preferably, the extraction device is arranged such that the opening in cross-section is aligned as centrally as possible around the horizontal axis. In particular, the opening points towards the intake area.

[0020] In particular, the housing can be assigned a radius, which is advantageously between 5 cm and 15 cm, more preferably between 7.5 cm and 13 cm, and especially between 10 cm and 11 cm. The housing encloses an angular range of at least 90°, more preferably at least 120°, further preferably at least 150°, and most preferably exactly 160°. Furthermore, the outer shell encloses an angle of at most 270°, more preferably at most 245°, more preferably at most 200°, and most preferably at most 180°.

[0021] In particular, the housing of the extraction device has an upper end and a lower end. Overall, the housing of the extraction device can have several regions in cross-section. Specifically, it has a first, a second, and a third region. In the second region, the housing is a section of a circle or an oval. The first region, which comprises the upper end of the housing, can adjoin the second region. The upper end is advantageously designed as a rounded upper edge. The first region extends from the second region preferably in a tangential direction, but may be slightly curved radially outwards. The first region advantageously represents a slightly radially outwardly curved, tangential extension of the second region.

[0022] Furthermore, the third region, encompassing the lower end of the housing, can be connected to the second region. Advantageously, the third region also represents a tangential extension of the second region. The length of the first region and / or the third region is each at most 10% of the length of the housing.

[0023] The tangential direction in which the exhaust air is extracted is defined in particular by the first area of ​​the housing of the extraction device.

[0024] The housing is essentially semi-shell-shaped. Specifically, the extraction device extends essentially semi-shell-shaped from its upper end to its lower end. Above all, the housing can be essentially designed as a half-tube. The term "essentially" in this context refers to the fact that deviations from the semi-shell shape may only occur in the first and third sections.

[0025] In particular, a surface of the receiving area is arranged vertically between the upper and lower ends of the housing of the extraction device. This preferably means that the surface of the receiving area is positioned higher than the lower end but lower than the upper end. However, the surface does not necessarily have to lie on a line connecting the two ends; the arrangement at different heights is the only requirement.

[0026] Because the receiving area slopes downwards towards its opening, the surface of the receiving area refers specifically to its highest point. This is particularly the surface of the receiving area at its edge. In other words, it is the upper edge of the receiving area. Specifically, the surface of the receiving area is located in the upper half of the opening of the extraction device when the latter is centered around the horizontal axis.

[0027] The upper end is arranged in a vertical direction higher than the surface of the receiving area by a rise of at least 10 mm, preferably at least 20 mm, most preferably at least 25 mm, and at most 90 mm, preferably at most 60 mm, most preferably at most 30 mm.

[0028] Advantageously, a gap area is arranged between the upper end of the housing and the surface of the receiving area, wherein the width of the gap area is designed such that the extraction velocity in the gap area corresponds at least to the velocity of the exhaust air.

[0029] In particular, the extraction device generates a velocity field, whereby the extraction velocity can vary within this velocity field. Such a velocity field can also be assigned to the exhaust air. The extraction velocity and the velocity of the exhaust air are preferably to be understood as vectors, i.e., at every point in the field, they are each a resultant of several velocity components, in particular of three velocity components in a Cartesian coordinate system.

[0030] Preferably, the extraction device is configured to generate the velocity field in such a way that it superimposes on the velocity field of the exhaust air, resulting in a combined velocity field. A velocity or velocity vector can then be assigned to this combined velocity field at any point. In particular, the velocity field generated by the extraction device is configured such that the velocity vector of the combined velocity field, which arises from the superposition with the velocity field of the exhaust air, points, at least in the near field of the extraction device, towards the gap of the intake area. Furthermore, the velocity field generated by the extraction device is configured such that it completely removes the mass flow of air entering through the gap from the extraction device.

[0031] This is particularly advantageous because it creates an optimal velocity field, necessary for capturing pollutants, and avoids disturbances to comfort caused by flow noise. The width of the gap area refers specifically to the effective gap width. Specifically, a horizontal gap is arranged within the gap area, preferably with a width between 2 cm and 6 cm, and more preferably between 3 cm and 5 cm. Furthermore, a vertical gap is arranged within the gap area. This corresponds to the aforementioned elevation of the upper end above the surface of the receiving area. Together, the vertical and horizontal gaps constitute the gap area.

[0032] Furthermore, the exhaust air device preferably has a negative pressure chamber for drawing in the exhaust air using the extraction device. The negative pressure chamber thus serves to create a negative pressure and thereby generate a velocity field which, with the help of the extraction device, is designed to draw exhaust air from the intake area.

[0033] The negative pressure chamber is preferably arranged below the receiving area, wherein the negative pressure chamber and the interior of the extraction device are connected by at least one, preferably nozzle-shaped, opening, preferably by at least two nozzle-shaped openings. This ensures an airflow between the receiving area, the extraction device, and the negative pressure chamber. The opening can also be understood as an exhaust air inlet opening for the negative pressure chamber.

[0034] Furthermore, the negative pressure chamber preferably has an exhaust air outlet opening. The exhaust air outlet opening leads, in particular, into an exhaust pipe, which may also be arranged below the receiving area, especially below the negative pressure chamber.

[0035] Furthermore, the tubular connecting element that carries liquids downwards from the opening in the receiving area can run through the vacuum chamber. In particular, the tubular connecting element can be designed as an internally hollow penetration within the vacuum chamber, which is hermetically sealed to prevent unwanted air intake in this area.

[0036] The vacuum chamber is primarily bounded at the bottom by a first horizontal wall, which advantageously extends the housing of the suction device at its lower end. In particular, the housing, extending from the second region, preferably merges tangentially into the first horizontal wall of the vacuum chamber. Furthermore, the vacuum chamber can include a second horizontal wall that closes it off at the top.

[0037] Furthermore, the negative pressure chamber has a vertical wall that faces the interior of the extraction device, thus also defining its boundaries and contributing to the generation of a swirling flow. Within this vertical wall, at least one opening is arranged to connect the interior of the extraction device and the negative pressure chamber.

[0038] A stepped section can be arranged in an upper corner region of the vacuum chamber. In this stepped section, the vertical wall is recessed, preferably between 1 cm and 10 cm, more preferably between 2 cm and 8 cm, particularly between 3 cm and 5 cm, and most preferably exactly 4 cm, while the second horizontal wall is also recessed, particularly between 1 cm and 10 cm, more preferably between 2 cm and 8 cm, particularly between 4 cm and 6 cm, and most preferably exactly 5 cm. The stepped section can extend completely around the entire circumference.

[0039] The suction device, especially its housing, is designed to be hinged on at least one side of the examination table. In particular, a section of the suction device is hinged. Preferably, a section of the suction device is hinged on a long side and / or a short side of the examination table. Furthermore, preferably, the suction device can be hinged on all four sides. Hinged means that the suction device can be pivoted about an axis parallel to the horizontal. This feature allows the suction area to be slid directly into the examination table.The suction device may have a closure, particularly a magnetic closure, on at least one side where it is hinged, especially for a force-fit or positive-locking connection of the suction device to the rest of the examination table, and a roller for pivoting the suction device. The roller primarily serves to facilitate the insertion of the receiving area into the suction device. The closure is primarily located in a connection area for a force-fit connection of the suction device to the rest of the examination table. In the connection area, the suction device or its housing may also have ribs on at least one section of its inner surface for stiffening. Furthermore, the suction device may have a roller for pivoting on at least one side where it is hinged.

[0040] In a further aspect, the present invention comprises a ventilation system for ventilating a room for examining at least a part of a body, wherein the ventilation system includes a previously described examination table. Furthermore, the ventilation system preferably comprises air distribution diffusers for introducing supply air, preferably for temperature control of the room, and / or a supply air ceiling panel, which also serves to introduce supply air, preferably for the removal of pollutants. The ventilation system advantageously comprises both air distribution diffusers and a supply air ceiling panel for introducing supply air. This two-stage supply air system is particularly advantageous because it is optimally coordinated with the examination table to reduce pollutants as effectively as possible.The supply air ceiling panel is designed to minimize impulsiveness and ensures that supply air is directed from above the intake area, particularly from the ceiling of the room, towards the target area. The stratified air diffusers are located as surface diffusers in the floor area on at least one side wall, preferably on two opposite side walls of the room, or preferably on all side walls of the room, or within the room, preferably as floor-standing cylindrical diffusers. They introduce air horizontally or vertically at low supply air velocities. Preferably, the supply air velocity is between 0.1 m / s and 0.2 m / s. The stratified air diffusers are primarily located in the lower part of the room. The extracted air is thus replaced with minimal impulsiveness via a supply air ceiling panel and stratified air diffusers.The ventilation system serves to support the effectiveness of the exhaust air device and to remove heat loads from the room. Brief description of the drawings

[0041] They show schematically: Fig. 1: a perspective view of an examination table (100) according to the invention for examining at least one part of a body; Fig. 2: a cross-section of a section of the suction device (105) of the examination table (100) of the Fig. 1; Fig. 3: a cross-section of another section of the suction device (105) of the examination table (100) of the Fig. 1 and Fig. 2; Fig. 4: a longitudinal section of the examination table (100) of the Fig. 1 to 3; Fig. 5: a cross-section of the examination table (100) of the Fig. 1 to 4; and Fig. 6: a ventilation system (300) for a room (301) for examining at least one part of a body. Preferred embodiments of the invention

[0042] Fig. Figure 1 shows a perspective view of an examination table (100) for examining at least one part of a body.

[0043] The examination table (100) includes a receiving area (101) designed as a trough (102). The receiving area (101) slopes down towards an opening (103). The receiving area (101) has four sides: a first side (101a), a second side (101b), a third side (101c), and a fourth side (101d). The examination table (100) includes an exhaust air device (104), which in turn includes a suction device (105). The suction device (105) is designed to completely enclose the receiving area (101). This means that the suction device (105) completely surrounds the receiving area (101). The extraction device (105) has a housing (136) and is designed as a swirl hood (115), so that a swirl flow of the exhaust air (118) extracted from the receiving area (101) is generated in the interior space (106) formed by the housing.

[0044] In particular, the extraction device (105) comprises different sections, each section adjoining one side of the receiving area (101). Specifically, the extraction device has a first section (105a) on the first side (101a) of the receiving area (101), a second section (105b) on the second side (101b), a third section (105c) on the third side (101c), and a fourth section (105d) on the fourth side (101d). Each section extends in a straight line along its respective side of the receiving area (101). The housing (136), or each section, has an opening (137) directed towards the receiving area (101) and extending along the entire length of the sections. The receiving area (101) is primarily rectangular. Below the recording area (101) is a negative pressure chamber (121) which is connected to an exhaust pipe (134) that is in Fig. 1 is visible, connected.

[0045] Fig. Figure 2 shows a cross-section of a section of the suction device (105) of the examination table (100) of the Fig. 1.

[0046] The housing (136) of the extraction device (105) is designed as a half-shell. It is essentially formed as a partially cylindrical shell (116). It has a first region (105e), a second region (105f), and a third region (105g). The second region (105f) is located between the first region (105e) and the third region (105g). The regions are formed in one piece. The division into regions serves only to simplify the explanation of the exact shape of the extraction device.

[0047] Overall, the extraction device (105), or more precisely its housing (136), has a circular cross-section. In detail, the housing in the second section (105f) represents a section of this circular cross-section. The first section (105e), which comprises an upper end (107) of the housing (136), adjoins the second section (105f). The upper end (107) is formed as an upper rounded edge (108). The first section (105e) extends tangentially from the second section (105f), but is slightly curved radially outwards. The first section (105e) thus represents a slightly radially outwardly curved, tangential extension of the second section (105f).

[0048] Furthermore, the third region (105g), comprising a lower end (109) of the housing (136), adjoins the second region (105f). In the third region (105g), the housing (136) extends tangentially from the second region (105f) into a first horizontal wall (122) of the vacuum chamber (121). Thus, the third region (105g) also represents a tangential extension of the second region (105f). The length of the first region (105e) and / or the third region (105g) is each at most 10% of the length of the housing (136), so that the housing is essentially designed as a partial cylinder. Since the housing (136) in cross-section represents only a segment of a circle, the cut-out area of ​​the circle is to be understood as an opening (137) of the housing (136).

[0049] Furthermore, in Fig. Figure 2 shows a cross-section through the receiving area (101) of the examination table (100). The receiving area (101) has a surface (110) which can be understood as the upper edge line. The negative pressure chamber (121) is located below the receiving area (101). The negative pressure chamber (121) has a first horizontal wall (122) that closes off the negative pressure chamber (121) at the bottom, and a second horizontal wall (123) that closes off the negative pressure chamber (121) at the top. Furthermore, the negative pressure chamber (121) has a vertical wall (124) in the direction of the suction device (105).

[0050] In an upper corner region of the vacuum chamber (121), a stepped section (124a) can be arranged. In the stepped section (124a), the vertical wall (124) is recessed, preferably between 1 cm and 10 cm, more preferably between 2 cm and 8 cm, particularly between 3 cm and 5 cm, most preferably exactly 4 cm, while the second horizontal wall (123) is also recessed, particularly between 1 cm and 10 cm, more preferably between 2 cm and 8 cm, particularly between 4 cm and 6 cm, most preferably exactly 5 cm.

[0051] At least two openings (125) are arranged in the vertical wall (124), one of which is shown in the figure. The openings (125) are to be understood as exhaust air inlet openings (127) of the negative pressure chamber (121). The openings (125) are preferably circular, with their diameter preferably corresponding to at least one-third of the dimensions of the negative pressure chamber (121) in the vertical direction. In particular, the negative pressure chamber (121) has more than two such openings (125), which are preferably arranged around the perimeter at the same height.

[0052] The interior (106) of the extraction device (105) is arranged between the negative pressure space (121), in particular the vertical wall (124), and the housing (136) of the extraction device (105).

[0053] The upper end (107) of the extraction device (105) is arranged by a raised section (111) above the surface (110) of the receiving area (101). Furthermore, the upper end (107) of the extraction device (105) is arranged further outwards in the horizontal direction (201) relative to the receiving area (101). In other words, a gap (112) is arranged between the receiving area (101) and the upper end (107) of the extraction device (105), which has a gap width (114) in the horizontal direction (201) and a gap width (113) in the vertical direction (202), the gap width in the vertical direction (113) corresponding to the raised section (111).

[0054] In Fig. Figure 3 is a cross-section of another section of the suction device (105) of the examination table (100) of the Fig. 1 and Fig. 2 shown, wherein the extraction device (105) is designed to be foldable in this section.

[0055] To enable the section to be folded down, it has a magnetic closure (131) in a connecting area (133), as well as a roller (132) for pivoting the extraction device (105). Furthermore, in Fig. Figure 3 schematically shows the swirl flow (138). It illustrates how exhaust air (118) is drawn from the intake area (101) in a tangential direction (200), which here corresponds to the horizontal direction (201). More precisely, the figure shows exhaust air (120) flowing into the gap area (112), which is set into a swirl flow (138) in the interior (106) of the extraction device (105) and then leaves the interior (106) as exhaust air (119) entering the negative pressure chamber (121).

[0056] Fig. Figure 4 shows a longitudinal section of the examination table (100) of the Fig. 1 to 3.

[0057] It is clearly visible how a tubular connection leads from the opening (103) in the receiving area (101) to a collection unit (129), in particular to a collection bucket (130), for collecting liquids. The tubular connection is designed as a penetration (126) through the negative pressure chamber (121). Furthermore, the negative pressure chamber (121) has an exhaust air outlet opening (128), which is shown between the negative pressure chamber (121) and the exhaust air pipe (134).

[0058] In Fig. 5 is a cross-section of the examination table (100) of the Fig. Shown 1 to 4.

[0059] It is clearly visible how the housing (136) encloses an angular region (135) in its second region (105f), which is preferably 160°. Furthermore, in Fig. 5 the radius (117) of the housing (136) can be seen in the second area (105f). The receiving area (101) is enclosed on both sides by the extraction device (105), each by a section.

[0060] In Fig. Figure 6 shows a ventilation system (300) for a room (301) for examining at least part of a body.

[0061] The room (301) has a ceiling (302) and a floor (303). Two side walls (304a, 304b) are also visible. The ventilation system (300) has a supply air ceiling panel (305) in the ceiling (302) of the room (301) and stratified air diffusers (306) in the side walls (304a, 304b). Supply air (307) is supplied to the room (301) through the supply air ceiling panel (305) and the stratified air diffusers (306). The supply air distribution is optimally adapted to the examination table (100) according to the invention, which is located in the room (301), so that the examination table (100), the supply air ceiling panel (305), and the stratified air diffusers (306) constitute a particularly advantageous ventilation system (300).

Claims

[1] Examination table (100) for examining at least one part of a body, wherein the examination table (100) has a receiving area (101) for receiving at least one part of a body, wherein the examination table (100) includes an exhaust air device (104) for removing exhaust air (118), wherein the exhaust air device (104) has an extraction device (105) for capturing and extracting the exhaust air (118), characterized by , that the extraction device (105) is designed to generate a swirling flow (138) of the exhaust air (118) in an interior space (106) of the extraction device (105), wherein the extraction device (105) fully encloses the receiving area (101) in a horizontal direction (201) and that the extraction device (105) comprises a housing (136) that partially encloses the swirling flow (138). [2] Examination table (100) according to claim 1, characterized bythat the extraction device (105) is designed as a swirl hood (115). [3] Examination table (100) according to one of claims 1 or 2, characterized by , that the housing (136) is semi-shell shaped. [4] Examination table (100) according to one of claims 1 to 3, characterized by , that the housing (136) has an upper end (107) and a lower end (109), wherein a surface (110) of the receiving area (101) is arranged in a vertical direction (202) between the upper end (107) and the lower end (109). [5] Examination table (100) according to claim 4, characterized by , that the upper end (107) is arranged in a vertical direction (202) higher than the surface (110) of the receiving area (101) by a rise (111) of at least 10 mm, preferably at least 20 mm, most preferably at least 25 mm, and at most 90 mm, preferably at most 60 mm, most preferably at most 30 mm. [6] Examination table (100) according to one of claims 4 or 5, characterized by , that a gap area (112) is arranged between the upper end (107) and the surface (110) of the recording area (101), wherein the width of the gap area (112) is designed such that the extraction velocity in the gap area (112) corresponds at least to the velocity of the exhaust air. [7] Examination table (100) according to one of the preceding claims, characterized by , that the exhaust air device (104) comprises a negative pressure chamber (121) for the intake of the exhaust air (118) using the extraction device (105), wherein the negative pressure chamber (121) is arranged below the receiving area (101), and wherein the negative pressure chamber (121) and the interior (106) of the extraction device (105) are connected by at least two openings (125). [8] Examination table (100) according to claim 7, characterized by, that the negative pressure space (121) is bounded downwards by a first horizontal wall (122), wherein the first horizontal wall (122) represents an extension of the housing (136) of the extraction device (105). [9] Examination table (100) according to one of the preceding claims, characterized by that the suction device (105) is designed to be foldable on at least one side of the examination table (100). [10] Examination table (100) according to claim 9, characterized by that the extraction device (105) has a closure and a roller (132) for pivoting on at least one side. [11] Examination table (100) according to claim 9, characterized by , that the housing (136) of the extraction device (105) has ribs for stiffening on at least one section of its inner surface. [12] Ventilation system (300) for ventilating a room (301) for examining at least one part of a body, characterized by , that the ventilation system (300) comprises an examination table (100) according to one of claims 1 to 11. [13] Ventilation system (300) according to claim 12, characterized by , that the ventilation system (300) comprises layer air diffusers (306) for introducing supply air and / or a supply air ceiling panel (305) for introducing supply air.

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