Air supply device special for DSA composite operating room

Abstract

The invention discloses a DSA composite operating room special air supply device which comprises a purification unit, a laminar flow ceiling device and a sky rail, and the purification unit and the sky rail are both used for being installed above a ceiling of an operating room. A notch is formed in a ceiling of the operating room, and the laminar flow ceiling device is installed on the notch. Wherein the laminar flow ceiling device comprises a laminar flow box, an air supply pore plate and a flow guide assembly, the laminar flow box is installed on the ceiling, connected with the side wall of the sky rail and located at the notch position, and the purification unit is connected with the laminar flow box; the air supply hole plate is installed below the laminar flow box and used for filling the notch, a plurality of sets of air supply holes are formed in the air supply hole plate, and the flow guide assembly is installed above the three rows of air supply holes closest to the two sides of the sky rail. The invention aims to solve the problems that in the prior art, the size of a DSA equipment ceiling rail of a ceiling in a DSA composite operating room is large, a laminar flow ceiling is shielded, and air supply of the laminar flow ceiling to an operation mainstream area is affected.

Description

Technical Field

[0001] The present invention relates to the technical field of DSA operating rooms, and in particular to a special air supply device for a DSA composite operating room. Background Art

[0002] The DSA hybrid operating room truly embodies the "patient-centered" medical model and provides a platform for the exchange and integration of technologies from multiple disciplines such as internal medicine, surgery, and imaging. The DSA hybrid operating room is a comprehensive integration of DSA equipment and surgery in a Class 100 laminar flow operating room, which combines minimally invasive interventional surgery with traditional open surgery, thereby solving various complex surgeries, reducing surgical risks, and saving surgical time. Hybrid surgery is widely used in the fields of nerves, heart, and blood vessels. The purification air conditioning of the DSA hybrid operating room plays an irreplaceable role in preventing infection and ensuring the success of surgery. It is an indispensable supporting technology in the operating room, and its safe operation is closely related to the life safety of the patient. Therefore, the requirements for aseptic operation in the hybrid DSA operating room are more stringent, and it is even more important to ensure the safety of the operating room.

[0003] The DSA hybrid operating room has high infection control requirements during use. Therefore, the reasonable flow direction of the purified air supply ceiling airflow in the DSA hybrid operating room directly affects the safety and purification requirements of the operating room.

[0004] The cleanliness level of DSA compound operating room is generally implemented according to the Class I operating room standard in the "Technical Specifications for Hospital Clean Operating Room Construction" promulgated and implemented in my country in 2013. According to the requirements of the "Technical Specifications for Hospital Clean Operating Room Construction", the minimum size of the laminar flow ceiling in the Class I operating room is: 2.6mX2.4m, and the average wind speed in the working area is 0.20~0.25m / s. The non-inductive air supply device concentrated above the operating table in the Class I clean operating room should make a certain area including the operating table, that is, the operating area, in the mainstream area formed by the clean air flow. When the centralized air supply surface of the clean operating room needs to be separated, the air flow should be overlapped at a height of about 2m above the ground.

[0005] The laminar flow ceiling of the DSA hybrid operating room must ensure that the clean airflow is within the mainstream surgical area. Because the ceiling rail of the DSA equipment in the hybrid operating room is large, it blocks the laminar flow ceiling and affects the air supply of the laminar flow ceiling to the mainstream surgical area. Summary of the invention

[0006] The present invention provides a special air supply device for a DSA compound operating room, aiming to solve the problem in the prior art that the DSA equipment ceiling rail on the ceiling of the DSA compound operating room is too large to block the laminar ceiling, thereby affecting the air supply of the laminar ceiling to the mainstream surgical area.

[0007] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0008] A special air supply device for a DSA composite operating room comprises a purification unit, a laminar flow ceiling device and a ceiling rail, wherein the purification unit and the ceiling rail are both used to be installed above the ceiling of the operating room; a notch is provided on the ceiling of the operating room, and the laminar flow ceiling device is installed on the notch;

[0009] Among them, the laminar ceiling device includes a laminar flow box, an air supply hole plate and a guide assembly. The laminar flow box is installed on the ceiling, connected to the side wall of the ceiling rail and located at the gap position, and the purification unit is connected to the laminar flow box; the air supply hole plate is installed under the laminar flow box and is used to fill the gap. Several groups of air supply holes are arranged on the air supply hole plate. The guide assembly is installed above the three rows of air supply holes closest to both sides of the ceiling rail. The air supply hole plate is also provided with an angle adjustment device, and the angle adjustment device is used to adjust the angle of the guide assembly.

[0010] Furthermore, an air supply pipe is provided on the laminar flow box, and the purification unit is used to be connected to the laminar flow box through the air supply pipe.

[0011] Furthermore, a return air vent is provided on the wall of the operating room, and the return air vent is connected to the purification unit through a pipeline.

[0012] Furthermore, a filter screen is arranged inside the laminar flow box, and the filter screen is located between the air supply pipe and the air supply orifice plate.

[0013] Furthermore, the guide assembly includes a plurality of guide plates, which are rotatably installed inside the laminar flow box, and the guide plates are connected by connecting rods. The guide plates are connected to an angle adjustment device, and the angle adjustment device is used to drive the guide plates to rotate.

[0014] Furthermore, a control panel is provided inside the operating room.

[0015] Furthermore, a pressure sensor is provided on the filter screen, and the pressure sensor is connected to the control panel through the controller, and the control panel is used to display the value of the pressure sensor.

[0016] Furthermore, a signal light is provided on the filter screen, and the signal light is connected to the control panel and the pressure sensor through a controller.

[0017] Furthermore, there is at least one ceiling rail, and the laminar flow boxes are arranged on both sides of the ceiling rail.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The present invention mainly includes a purification unit, a laminar flow ceiling device and a ceiling rail. In actual use, when the DSA operating room is used, the purification unit needs to be turned on, and the purification unit passes the purified air into the laminar flow box. At the same time, the angle of the guide component is adjusted by the angle adjustment device, and the purified air is tilted out from the air supply hole of the air supply hole plate through the shielding of the guide component. The purified airflow that is not blocked by the guide component passes through the air supply hole plate normally and passes into the operating room. The purified airflow on both sides of the ceiling rail tilts into the operating room and overcomes the blind spot blocked by the ceiling rail, thereby ensuring uniform airflow distribution and no air supply blind spot in the laminar flow area. The normal operation of the DSA equipment is guaranteed while meeting the purification requirements of the operating room. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a structural schematic diagram of the present invention.

[0022] Figure 2 It is a curved diagram of the jet curve of the purified air flow in the present invention.

[0023] Figure 3 It is a schematic diagram of the connection relationship between the ceiling rail and the laminar flow box in the present invention.

[0024] Figure 4 It is a schematic diagram of the connection relationship between multiple ceiling rails and the laminar flow box in the present invention.

[0025] Figure 5 It is a structural schematic diagram of the angle adjustment device in the present invention.

[0026] Figure 6 This is an intentional illustration of the connection relationship between the angle adjustment device and the air supply orifice plate in the present invention.

[0027] In the figure, 101-purification unit, 102-ceiling rail, 103-operating room, 104-gap, 105-laminar flow box, 106-air supply hole plate, 107-air supply hole, 108-air supply pipe, 109-return air outlet, 110-filter, 111-guide plate, 112-pressure sensor, 113-signal light, 114-dual-axis motor, 115-driving gear, 116-rotating rod, 117-bearing seat, 118-first driven gear, 119-observation port, 120-second driven gear, 121-dial, 122-glass cover, 123-rotating rod, 124-pointer. DETAILED DESCRIPTION

[0028] The present invention is further described below in conjunction with embodiments, which are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, other embodiments obtained by ordinary technicians in the field without creative work are all within the scope of protection of the present invention.

[0029] See also Figure 1-Figure 6 As shown, this embodiment discloses a dedicated air supply device for a DSA composite operating room 103, including a purification unit 101, a laminar flow ceiling device and a ceiling rail 102, wherein the purification unit 101 and the ceiling rail 102 are both used to be installed above the ceiling of the operating room 103; a notch 104 is provided on the ceiling of the operating room 103, and the laminar flow ceiling device is installed on the notch 104;

[0030] Among them, the laminar ceiling device includes a laminar flow box 105, an air supply hole plate 106 and a guide assembly. The laminar flow box 105 is installed on the ceiling, connected to the side wall of the ceiling rail 102 and located at the gap 104, and the purification unit 101 is connected to the laminar flow box 105; the air supply hole plate 106 is installed under the laminar flow box 105 and is used to fill the gap 104. A plurality of groups of air supply holes 107 are arranged on the air supply hole plate 106. The guide assembly is installed above the three rows of air supply holes 107 closest to both sides of the ceiling rail 102. The air supply hole plate 106 is also provided with an angle adjustment device, which is used to adjust the angle of the guide assembly.

[0031] The present invention mainly includes a purification unit 101, a laminar flow ceiling device and a ceiling rail 102. In actual use, when the DSA operating room 103 is used, the purification unit 101 needs to be turned on. The purification unit 101 passes the purified air into the laminar flow box 105. At the same time, the angle of the guide component is adjusted by the angle adjustment device. The purified air is obliquely flowed out from the air supply hole 107 of the air supply hole plate 106 through the shielding of the guide component. The purified airflow that is not blocked by the guide component passes through the air supply hole plate 106 normally and then passes into the operating room 103. The purified airflow on both sides of the ceiling rail 102 obliquely flows into the operating room 103, overcoming the blind area blocked by the ceiling rail 102, ensuring uniform airflow distribution, ensuring that there is no air supply blind area in the laminar flow area, ensuring the normal operation of the DSA equipment while meeting the purification requirements of the operating room 103.

[0032] In some embodiments, an air supply pipe 108 is provided on the laminar flow box 105 , and the purification unit 101 is used to be connected to the laminar flow box 105 through the air supply pipe 108 .

[0033] In actual use, the purpose of providing the air supply pipe 108 is to facilitate the connection between the purification unit 101 and the laminar flow box 105 .

[0034] In some embodiments, a return air vent 109 is further provided on the wall of the operating room 103 , and the return air vent 109 is connected to the purification unit 101 through a pipeline.

[0035] In actual use, the purpose of providing the return air port 109 is to recover the purified airflow blown out from the air supply hole plate 106 .

[0036] In some embodiments, a filter screen 110 is disposed inside the laminar flow box 105 , and the filter screen 110 is located between the air supply pipe 108 and the air supply orifice plate 106 .

[0037] In actual use, the purpose of providing the filter 110 is to perform secondary filtration on the purified airflow.

[0038] In some embodiments, the guide assembly includes a plurality of guide plates 111, which are rotatably installed inside the laminar flow box 105, and are connected by connecting rods. The guide plates 111 are connected to an angle adjustment device, which is used to drive the guide plates 111 to rotate.

[0039] During actual use, medical staff adjust the deflection angle of the guide plate 111 through the angle adjustment device. Since several guide plates 111 are connected by connecting rods, when the angle adjustment device drives one of the guide plates 111 to rotate, the other guide plates 111 rotate together with the guide plates 111 close to the angle adjustment device through the connecting rods.

[0040] In some embodiments, a control panel is provided inside the operating room 103 .

[0041] It should be noted that, in this embodiment, the control panel is specifically a display screen with a control system.

[0042] In some embodiments, a pressure sensor 112 is disposed on the filter 110 . The pressure sensor 112 is connected to a control panel via a controller. The control panel is used to display the value of the pressure sensor 112 .

[0043] During actual use, the pressure sensor 112 senses the pressure of dust on the filter 110 in real time. When there is too much dust, the dust pressure will reach the threshold of the pressure sensor 112. At this time, a signal is transmitted to the control panel to notify the staff to replace it. The control panel displays the value on the pressure sensor 112 in real time.

[0044] In some embodiments, a signal light 113 is further disposed on the filter 110 , and the signal light 113 is connected to the control panel and the pressure sensor 112 through a controller.

[0045] In actual use, when the pressure sensor 112 reaches a threshold value, it is transmitted to the signal light 113, and the signal light 113 emits a buzzer to prompt the staff.

[0046] In some embodiments, the ceiling rail 102 has at least one, and the laminar flow boxes 105 are disposed on both sides of the ceiling rail 102 .

[0047] In actual use, the number of the ceiling rails 102 is set according to the size of the specific operating room 103 , and there is a laminar flow box 105 on both sides of the ceiling rail 102 .

[0048] In actual use, in order to achieve visual adjustment of the guide plate 111, an angle adjustment device is independently developed, and the specific scheme is as follows:

[0049] In some embodiments, the angle adjustment device includes a dual-axis motor 114 and a reducer, and the dual-axis motor 114 is connected to the control panel through a controller; there are two reducers, and the dual-axis motor 114 is installed on the air supply hole plate 106. The two ends of the dual-axis motor 114 have the same direction and rotation speed, and a driving gear 115 is installed on the two output shafts of the dual-head motor; a rotating rod 116 is provided at both ends of the guide plate, and a bearing seat 117 is provided on the air supply hole plate 106. The rotating rod 116 rotates in cooperation with the bearing seat 117, and a first driven gear 118 is provided on the rotating rod 116. The driving gear 115 is meshed with the first driven gear 118 through one of the reducers. ; The air supply hole plate 106 is also provided with an observation port 119, and a second driven gear 120 is rotatably installed on the air supply hole plate 106 corresponding to the position of the observation port 119, and the driving gear 115 is connected to the second driven gear 120 through the other reducer; a dial 121 and a glass cover 122 are provided in the observation port 119, and the glass cover 122 is located below the dial 121, and light bars are provided on the dial 121 and the pointer 124, and a rotating rod 123 is provided below the second driven gear 120, and the rotating rod 123 passes through the dial 121 and is connected to the pointer 124, and the rotation center of the pointer 124 is colinear with the axis of the dial 121.

[0050] In actual use, when medical staff need to adjust the angle of the guide plate 111, since the height and width of the ceiling rail of the laminar flow ceiling in the prior art are different in each operating room, in order to adapt to ceiling rails of different heights and widths and avoid the generation of blind spots, it is necessary to first calculate the specific angles at which the ceiling rails 102 of different widths need to deflect the guide plate 111;

[0051] The dimensionless trajectory equation for measuring the angle is as follows:

[0052]

[0053] In the above dimensionless trajectory equation:

[0054] The intelligent adjustable angle guide device forms an angle α with the horizontal line. The point A shown in the figure is the unit volume jet on the axis line. The gravity on it is ρm·g, and the buoyancy is ρe·g. The total upward force is (ρe-ρm)·g. According to Newton's second law, F=ρm·j, it can be obtained that

[0055]

[0056] In the formula, j is the vertical acceleration. In the figure, the longitudinal distance that the jet axis A deviates from is y', so the relationship between y' and the vertical component velocity uy of the jet and the vertical acceleration j is:

[0057] Then uy=∫jdt

[0058] y′=∫uydt=∫dt∫jdt

[0059] Substituting into the j formula,

[0060] When the gas is in an isobaric process, the state equation is p·g·T=constant. It can be obtained that:

[0061]

[0062] Convert the axis temperature difference to the axis velocity relationship, where Vm is the axis velocity and V0 is the core velocity, and apply the following formula,

[0063] Concentration difference

[0064]

[0065]

[0066] because

[0067]

[0068] Reuse Substitute the inverse and substitute it into the y' formula together,

[0069]

[0070] As shown in the coordinates in the figure, In the formula is the Archimedean number, the following formula becomes:

[0071]

[0072] This formula represents the law of change of the ordinate y of the jet axis trajectory with x. Since the Archimedean number Ar, the turbulence coefficient a, and the diameter d0 are fixed values, it can be seen from the above formula that the deflection angle α of the intelligent adjustable angle guide device changes according to the change of the axis trajectory.

[0073] Finally, by dividing it by the diameter d0 of the intelligent adjustable angle guide device, the dimensionless trajectory equation is obtained:

[0074]

[0075] Therefore, the diameter of the intelligent adjustable angle guide device and the jet axis trajectory determine the deflection angle of the device. Because the width of the overhead rail 102 will affect the jet axis trajectory, the larger the width of the overhead rail 102, the more "open" the jet axis trajectory is, that is, the wider it is, the slower the rate of change in the vertical direction is, and the corresponding deflection angle of the device is smaller; the smaller the width of the overhead rail 102, the more "contracted" the jet axis trajectory is, that is, the narrower it is, the faster the rate of change in the vertical direction is, and the corresponding deflection angle of the device is larger.

[0076] After determining the deflection angle of the guide plate 111, the medical staff starts the dual-axis motor 114 to rotate. After the dual-axis motor 114 rotates, it will drive the first driven gear 118 and the second driven pulley 120 to rotate through the reducer. The initial position of the pointer 124 points to the zero degree of the dial 121. After the second driven pulley 120 drives the pointer 124 to rotate, the medical staff can observe the rotation scale of the pointer 124 through the glass cover 122, and then calculate the deflection angle of the guide plate 111 through the transmission ratio. When it meets the above-mentioned angle that needs to be actually rotated in the trajectory equation, the medical staff operates the control panel to control the dual-axis motor 114 to stop rotating.

[0077] As an optional embodiment, the angle is 4°, and the driving gear 115 has the same transmission ratio with the first driven gear 118 and the second driven gear 120 through the reducer. When the pointer 124 rotates to 4° on the dial 121, the medical staff operates the dual-axis motor 114 to stop rotating. Since the driving gear 115 has the same transmission ratio with the first driven gear 118 and the second driven gear 120 through the reducer, the deflection angle of the guide plate 111 is the same as the rotation angle of the pointer 124. Finally, when the pointer 124 rotates 4°, the guide plate 111 also deflects 4°, thereby realizing the monitoring of the angle adjustment of the guide plate 111.

[0078] In the description of the present invention, it is necessary to understand that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "two ends", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0079] In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one of such features.

[0080] In the present invention, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0081] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dedicated air supply device for a DSA composite operating room, comprising a purification unit (101) and a ceiling rail (102), wherein the purification unit (101) and the ceiling rail (102) are both used to be installed above the ceiling of an operating room (103), characterized in that: Also included is a laminar flow ceiling device, a notch (104) is provided on the ceiling of the operating room (103), and the laminar flow ceiling device is installed on the notch (104); The laminar flow ceiling device comprises a laminar flow box (105), an air supply hole plate (106) and a flow guide assembly. The laminar flow box (105) is installed on the ceiling and connected to the side wall of the ceiling rail (102) and is located at the position of the gap (104). The purification unit (101) is connected to the laminar flow box (105). The air supply hole plate (106) is installed below the laminar flow box (105) and is used to fill the gap (104). The air supply hole plate (106) is provided with a plurality of groups of air supply holes (107). The flow guide assembly is installed above the three rows of air supply holes (107) closest to both sides of the ceiling rail (102). The air supply hole plate (106) is also provided with an angle adjustment device, and the angle adjustment device is used to adjust the angle of the flow guide assembly.

2. The dedicated air supply device for a DSA composite operating room according to claim 1, characterized in that: An air supply pipe (108) is provided on the laminar flow box (105), and the purification unit (101) is used to be connected to the laminar flow box (105) through the air supply pipe (108).

3. The dedicated air supply device for a DSA composite operating room according to claim 2, characterized in that: An air return port (109) is also provided on the wall of the operating room (103), and the air return port (109) is connected to the purification unit (101) through a pipeline.

4. The dedicated air supply device for a DSA composite operating room according to claim 1, characterized in that: A filter screen (110) is arranged inside the laminar flow box (105), and the filter screen (110) is located between the air supply pipe (108) and the air supply orifice plate (106).

5. The dedicated air supply device for a DSA composite operating room according to claim 1, characterized in that: The flow guide assembly comprises a plurality of flow guide plates (111), wherein the plurality of flow guide plates (111) are rotatably mounted inside the laminar flow box (105), the plurality of flow guide plates (111) are connected via connecting rods, and the flow guide plates (111) are connected to an angle adjustment device, which is used to drive the flow guide plates (111) to rotate.

6. The dedicated air supply device for a DSA composite operating room according to claim 1, characterized in that: A control panel is provided inside the operating room (103).

7. A dedicated air supply device for a DSA composite operating room according to claims 4 and 6, characterized in that: A pressure sensor (112) is provided on the filter screen (110); the pressure sensor (112) is connected to a control panel via a controller; the control panel is used to display the value of the pressure sensor (112).

8. The dedicated air supply device for a DSA composite operating room according to claim 7, characterized in that: A signal light (113) is also provided on the filter screen (110), and the signal light (113) is connected to the control panel and the pressure sensor (112) via a controller.

9. The dedicated air supply device for a DSA composite operating room according to claim 1, characterized in that: There is at least one ceiling rail (102), and the laminar flow boxes (105) are arranged on both sides of the ceiling rail (102).

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