Exploration device for gynecological clinical operation
By designing flexible auxiliary exploration mechanisms and adjustment mechanisms, the problems of inconvenience in patients' posture and difficulty in adjusting the sampling tube position during gynecological examinations are solved, the accuracy and efficiency of the examination are improved, and the flexibility and comfort of the device are improved.
Patent Information
- Application Number
- CN202411642711.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-18
- Publication Date
- 2025-01-07
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The existing gynecological examination methods cause patients to keep their legs open for a long time, resulting in muscle soreness and embarrassment, and difficulty in adjusting the position of the sampling tube, reducing the accuracy and efficiency of the examination.
A gynecological clinical surgical exploration device including a probe bed, auxiliary probe mechanism and adjustment mechanism is designed. The auxiliary probe mechanism realizes a flexible examination posture through pallets, rotating columns, foot support and universal torsion metal strips, and the adjustment mechanism is transmitted through straight lines. The guide rails, motors and gears adjust the sampling tube position.
It improves the accuracy and efficiency of the examination, reduces the work burden of the doctor, improves the flexibility and comfort of the device, and solves the difficulty of adjusting the sampling tube position.
Smart Images

Figure CN119257891A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of exploration instruments, and in particular to an exploration device used for gynecological clinical surgery. Background Art
[0002] With the rapid development of medical technology, the performance and functions of medical equipment are constantly expanding and improving. In the field of gynecological diseases, many common and multiple diseases in women are often closely related to the reproductive system. Every year, a large number of women need to go to the hospital for surgery due to such diseases.
[0003] Under current technical conditions, the process of gynecological examination usually requires the patient to lie flat on the examination bed with legs spread so that the doctor can conduct a detailed examination of the patient's lower body. However, this examination method has many inconveniences. On the one hand, the patient needs to keep the legs spread for a long time, which often causes muscle soreness and discomfort; on the other hand, for some conservative patients, this examination method may make them feel embarrassed and uneasy, thus affecting the smooth progress of the examination.
[0004] In order to solve these problems, a gynecological clinical exploration device came into being. Compared with existing inspection methods, this device is more convenient and comfortable to use. Before the inspection, the patient only needs to lie on a special backboard with the head gently resting on the headrest. During the inspection, the doctor no longer needs to let the patient keep his legs open for a long time, but can use the detection head on the device to accurately inspect the patient's lower body. However, in the current existing technology, since secretion sampling is required during the inspection, the doctor needs to hold the detection head to inspect the patient's lower body on one hand, and on the other hand, he needs to sample secretions from different parts of the body during the inspection. He has no time to take into account the position of the sampling tube. There is a phenomenon that the sampling tube is placed disorderly or accidentally touched, which reduces the accuracy and efficiency of the inspection. For this reason, we propose a gynecological clinical surgical exploration device. Summary of the invention
[0005] The purpose of the present invention is to provide a gynecological clinical surgical exploration device to solve the problems raised in the above background technology.
[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions: A gynecological clinical surgical exploration device comprises an exploration bed and a support frame fixed to the bottom of the exploration bed, a stable base is fixed to the bottom of the support frame, one end of the exploration bed is rotatably connected to an adjustable backrest via a damper, an auxiliary exploration mechanism is mounted on the top of the exploration bed, the auxiliary exploration mechanism comprises a support plate, a first rotating column and a footrest, a support plate is fixed to one end of the exploration bed away from the adjustable backrest, the top of the support plate is rotatably connected to two first rotating columns via a damper, the top of each of the first rotating columns is fixed with a footrest, and the top of each of the footrests is provided with a recessed portion.
[0007] Preferably, the auxiliary exploration mechanism also includes a second rotating column, a knee support, a positioning gantry, a universal torsion metal bar and an exploration light. The top of one end of the exploration bed is rotatably connected to two second rotating columns through a damper, and the top of each of the second rotating columns is fixed with a knee support. A positioning gantry is fixed on both sides of the top of the exploration bed, a universal torsion metal bar is fixed to the top of the inner side of the positioning gantry, and an exploration light is fixed to the bottom of the universal torsion metal bar.
[0008] Preferably, the top of the exploration bed is also equipped with a cooperative exploration mechanism, and the cooperative exploration mechanism is used to shield the inspection part during exploration.
[0009] Preferably, the cooperative exploration mechanism includes an opening and closing component and a power component, a first connecting column is fixed to one side of the exploration bed, the inner side of the first connecting column is equipped with an opening and closing component, and the inner side of the opening and closing component is equipped with a power component.
[0010] Preferably, the opening and closing assembly includes a first sliding inner connecting groove, a first linkage block, a first arched connecting arm, a second arched connecting arm and a second connecting column, a first sliding inner connecting groove is opened at one end of the first connecting column, the inner side of the first sliding inner connecting groove is slidably connected to the first linkage block, the inner side of the first linkage block is rotatably connected to the first arched connecting arm through a pin, the middle part of the first arched connecting arm is rotatably connected to the second arched connecting arm through a pin, the bottom of the second arched connecting arm is rotatably connected to the first connecting column through a pin, and the top of the first arched connecting arm is rotatably connected to the second connecting column through a pin.
[0011] Preferably, the force-dynamic component includes a second linkage block, a second sliding internal groove, a socket joint and a semi-ring shielding frame. A second sliding internal groove is opened on the inner side of the second connecting column, and the inner side of the second sliding internal groove is slidably connected with the second linkage block. The inner side of the second linkage block is rotatably connected to the second arched connecting arm, and a socket joint is fixed on the outer side of the second connecting column. A semi-ring shielding frame is fixed to one end of the socket joint, and a cloth curtain is arranged on the inner side of the semi-ring shielding frame.
[0012] Preferably, a rectangular through groove is opened on the inner side of the exploration bed, a tray support frame is installed on the inner side of the rectangular through groove, and a plurality of sampling tubes are evenly arranged on the top of the tray support frame.
[0013] Preferably, an adjustment mechanism is installed between the rectangular through slot and the tray support frame, and the adjustment mechanism is used to adjust the position of the tray support frame.
[0014] Preferably, the adjustment mechanism includes a linear conduction rail, a side guide rail block, a U-shaped frame, an inner track groove, an installation sliding block, a motor, a central shaft, a gear, a tooth inner column and an adjustment annular groove, a linear conduction rail is fixed at both ends of the inner side of the rectangular through groove, both sides of the linear conduction rail are slidably connected with side guide rail blocks, a U-shaped frame is fixed on one side of the two side guide rail blocks, the top of the U-shaped frame is provided with an inner track groove, the inner side of the inner track groove is slidably connected with an installation sliding block, the top of the installation sliding block is fixed with a motor, the motor is fixed to the support tray frame, the output end of the motor passes through the installation sliding block and is fixed with a central shaft, the outer side of the central shaft is fixed with a gear, a plurality of tooth inner columns corresponding to the gear positions are evenly fixed on the top of the linear conduction rail, the tooth inner columns are all meshed with gears, an adjustment annular groove is provided at the top of the linear conduction rail and deviates from the tooth inner column, and the adjustment annular groove is slidably connected with the central shaft.
[0015] It can be seen without a doubt that the above-mentioned technical solution of the present application can definitely solve the technical problem to be solved by the present application.
[0016] At the same time, through the above technical solutions, the present invention has at least the following beneficial effects: 1. The present invention solves the inconvenience and embarrassment existing in the existing inspection methods through the structural design of the auxiliary detection mechanism and the coordinated detection mechanism, and also improves the accuracy of gynecological examination, speeds up the work efficiency, and enhances the flexibility of the device.
[0017] 2. The present invention uses the structural design of the adjustment mechanism to enable the device to adjust the position of the sampling tube when exploring the patient, which is convenient for doctors to take samples. Through simple operations, doctors can easily adjust the position of the sampling tube, thereby saving inspection time and reducing the workload of doctors. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying any creative work.
[0019] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a schematic diagram of the cutaway structure of the exploration bed of the present invention; Figure 3 It is a schematic diagram of the cross-section structure of the first connecting column and the second connecting column of the present invention; Figure 4 It is a schematic diagram of the connection structure between the exploration bed and the rectangular through groove of the present invention; Figure 5 It is a schematic diagram of the connection structure between the side guide rail block and the inner track groove of the present invention; Figure 6 It is a schematic diagram of the connection structure of the motor and the mounting sliding block of the present invention; Figure 7 It is a schematic diagram of the connection structure of the linear conductive rail and the adjusting annular groove of the present invention.
[0020] In the accompanying drawings, the components represented by the reference numerals are listed as follows: In the figure: 1, exploration bed; 2, bearing frame; 3, stable base; 4, adjustable backrest; 5, support plate; 6, first rotating column; 7, footrest; 8, second rotating column; 9, knee support; 10, positioning gantry; 11, universal torsion metal strip; 12, exploration light; 13, first connecting column; 14, first sliding inner groove; 15, first linkage block; 16, first arched connecting arm; 17, second arched connecting arm; 18, first Two connecting columns; 19, second linkage block; 20, second sliding internal groove; 21, socket joint; 22, semi-ring shielding frame; 23, rectangular through groove; 24, tray support frame; 25, sampling tube; 26, linear conduction rail; 27, side guide block; 28, U-shaped frame; 29, internal track groove; 30, installation sliding block; 31, motor; 32, center axis; 33, gear; 34, tooth internal column; 35, adjustment annular groove. DETAILED DESCRIPTION
[0021] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.
[0022] Example 1 Reference Figure 1-3A gynecological clinical surgical exploration device comprises an exploration bed 1, and a supporting frame 2 fixed at the bottom of the exploration bed 1, a stable base 3 is fixed at the bottom of the supporting frame 2, one end of the exploration bed 1 is rotatably connected with an adjustable backrest 4 through a damper, the top of the exploration bed 1 is equipped with an auxiliary exploration mechanism, the auxiliary exploration mechanism comprises a support plate 5, a first rotating column 6 and a footrest 7, the end of the exploration bed 1 away from the adjustable backrest 4 is fixed with a support plate 5, the top of the support plate 5 is rotatably connected with two first rotating columns 6 through a damper, the top of the first rotating columns 6 are fixed with footrests 7, and the tops of the footrests 7 are each provided with a recessed portion.
[0023] The auxiliary exploration mechanism also includes a second rotating column 8, a knee support 9, a positioning gantry 10, a universal torsion metal strip 11 and an exploration light 12. The top of one end of the exploration bed 1 is rotatably connected to two second rotating columns 8 through a damper. The top of the second rotating columns 8 is fixed with a knee support 9. A positioning gantry 10 is fixed on both sides of the top of the exploration bed 1. A universal torsion metal strip 11 is fixed to the top of the inner side of the positioning gantry 10. The bottom of the universal torsion metal strip 11 is fixed with an exploration light 12. The positioning gantry 10 is provided with a detection instrument to facilitate doctors to perform gynecological exploration. At the same time, the doctor can twist and bend the universal torsion metal strip 11 so that the universal torsion metal strip 11 can drive the exploration light 12 to adjust the direction and angle.
[0024] The top of the exploration bed 1 is also equipped with a matching exploration mechanism, which is used to shield the inspection part during the exploration.
[0025] The cooperative exploration mechanism includes an opening and closing component and a power component. A first connecting column 13 is fixed to one side of the exploration bed 1. The inner side of the first connecting column 13 is equipped with an opening and closing component, and the inner side of the opening and closing component is equipped with a power component. The opening and closing assembly includes a first sliding inner groove 14, a first linkage block 15, a first arched connecting arm 16, a second arched connecting arm 17 and a second connecting column 18. The first connecting column 13 has a first sliding inner groove 14 at one end, and the first linkage block 15 is slidably connected to the inner side of the first sliding inner groove 14. The inner side of the first linkage block 15 is rotatably connected to the first arched connecting arm 16 through a pin, the middle part of the first arched connecting arm 16 is rotatably connected to the second arched connecting arm 17 through a pin, the bottom of the second arched connecting arm 17 is rotatably connected to the first connecting column 13 through a pin, and the top of the first arched connecting arm 16 is rotatably connected to the second connecting column 18 through a pin. When the semi-ring shielding frame 22 rotates, the second connecting column 18 drives the second arched connecting arm 17 to rotate, and at the same time, the first arched connecting arm 16 also rotates relative to the first connecting column 13, so that the semi-ring shielding frame 22 can be opened or covered on the exploration bed 1.
[0026] The force-dynamic component includes a second linkage block 19, a second sliding inner groove 20, a socket head 21 and a semi-ring shielding frame 22. A second sliding inner groove 20 is provided on the inner side of the second connecting column 18. The inner side of the second sliding inner groove 20 is slidably connected with the second linkage block 19. The inner side of the second linkage block 19 is rotatably connected to the second arched connecting arm 17. A socket head 21 is fixed to the outer side of the second connecting column 18. A semi-ring shielding frame 22 is fixed to one end of the socket head 21. A cloth curtain is arranged on the inner side of the semi-ring shielding frame 22. When the patient lies on the exploration bed 1, the semi-ring shielding frame 22 is rotated so that the semi-ring shielding frame 22 drives the socket head 21 to rotate until the inner side of the semi-ring shielding frame 22 is placed above the patient, so that the cloth curtain covers the patient, so that the patient cannot see the examination process, thereby solving the inconvenience and embarrassment problems existing in the existing examination method.
[0027] Example 2 Embodiment 1 is further optimized, specifically, as Figure 4-7 As shown, a rectangular through groove 23 is opened on the inner side of the exploration bed 1, and a tray rack 24 is installed on the inner side of the rectangular through groove 23. A plurality of sampling tubes 25 are evenly distributed on the top of the tray rack 24. A gynecological sampler, a sterilizer and conventional gynecological drugs are arranged on the top of the tray rack 24 to meet different usage scenarios.
[0028] An adjustment mechanism is installed between the rectangular through slot 23 and the tray support frame 24 , and the adjustment mechanism is used to adjust the position of the tray support frame 24 .
[0029] The adjustment mechanism includes a linear conductive rail 26, a side guide block 27, a U-shaped frame 28, an inner track groove 29, a mounting slide block 30, a motor 31, a central shaft 32, a gear 33, a tooth inner column 34 and an adjustment annular groove 35. A linear conductive rail 26 is fixed at both ends of the inner side of the rectangular through groove 23. Both sides of the linear conductive rail 26 are slidably connected to the side guide blocks 27. A U-shaped frame 28 is fixed to one side of the two side guide blocks 27. The top of the U-shaped frame 28 is provided with an inner track groove 29. The inner side of the inner track groove 29 is slidably connected to the mounting slide block 30. The top of the mounting slide block 30 is fixed with a motor 31. The motor 31 is connected to the tray frame 24. The output end of the motor 31 passes through the installation sliding block 30 and is fixed with a central shaft 32. A gear 33 is fixed on the outside of the central shaft 32. A plurality of tooth inscribed columns 34 corresponding to the positions of the gears 33 are evenly fixed on the top of the linear conduction rail 26. The tooth inscribed columns 34 are all meshed with the gears 33. An adjusting annular groove 35 is provided at the top of the linear conduction rail 26 and deviates from the tooth inscribed columns 34. The adjusting annular groove 35 is slidably connected with the central shaft 32. When the gear 33 rotates along the tooth inscribed column 34, the bottom of the central shaft 32 rotates circumferentially along the inner side of the adjusting annular groove 35, so that the position of the sampling tube 25 can be quickly adjusted.
[0030] From the above, we can know that: The present invention is directed to the following technical problems: In the current prior art, since secretion sampling is required during the exploration, the doctor needs to hold the probe head to examine the patient's lower body while sampling secretions from different parts of the body during the exploration. The doctor has no time to consider the position of the sampling tube, and there is a phenomenon that the sampling tube is placed disorderly or accidentally touched, which reduces the accuracy and efficiency of the examination. The technical solutions of the above embodiments are adopted. At the same time, the implementation process of the above technical solution is: Move the device to the designated area, then electrically connect the device to an external power source, and then let the patient lie on the exploration bed 1, so that the patient's calves are placed on the footrest 7, and at the same time, let the patient's legs open so that the patient's knee joints are placed on the knee support 9. By adjusting the angles of the footrest 7 and the knee support 9 to adapt to the patient's body position, the patient can lie more comfortably; Afterwards, the doctor examines the patient with a medical detection instrument under the illumination of the searchlight 12. During the examination, the motor 31 is started, and the output end of the motor 31 drives the central shaft 32 and the gear 33 to rotate, so that the gear 33 engages with the tooth internal connection column 34. Because the tooth internal connection column 34 is fixed to the linear conduction rail 26, the linear conduction rail 26 is slidably connected to the side guide block 27, the motor 31 is fixed to the installation sliding block 30, and the installation sliding block 30 is slidably connected to the internal track groove 29, the motor 31 can drive the tray support frame 24 to move along the inner side of the adjustment annular groove 35 to adjust the position of the sampling tube 25, so as to assist the doctor in auxiliary sampling.
[0031] Through the above configuration, the present application can certainly solve the above technical problems and achieve the following technical effects: 1. The present invention solves the inconvenience and embarrassment existing in the existing inspection methods through the structural design of the auxiliary detection mechanism and the coordinated detection mechanism, and also improves the accuracy of gynecological examination, speeds up the work efficiency, and enhances the flexibility of the device.
[0032] 2. The present invention uses the structural design of the adjustment mechanism to enable the device to adjust the position of the sampling tube 25 when exploring the patient, which is convenient for doctors to take samples. Through simple operations, doctors can easily adjust the position of the sampling tube 25, thereby saving inspection time and reducing the workload of doctors.
[0033] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0034] Obviously, the embodiments described above are only some embodiments of the present invention, rather than all embodiments. The preferred embodiments of the present invention are given in the accompanying drawings, but they do not limit the patent scope of the present invention. The present invention can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive. Although the present invention has been described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific embodiments, or to perform equivalent replacements for some of the technical features therein. Any equivalent structure made using the contents of the specification and drawings of the present invention, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the present invention.
Claims
1. A gynecological clinical surgical exploration device, characterized in that: The invention comprises an exploration bed (1), and a support frame (2) fixed to the bottom of the exploration bed (1), a stable base (3) being fixed to the bottom of the support frame (2), one end of the exploration bed (1) being rotatably connected to an adjustable backrest (4) via a damper, an auxiliary exploration mechanism being mounted on the top of the exploration bed (1), the auxiliary exploration mechanism comprising a support plate (5), a first rotating column (6) and a footrest (7), a support plate (5) being fixed to one end of the exploration bed (1) away from the adjustable backrest (4), the top of the support plate (5) being rotatably connected to two first rotating columns (6) via a damper, the top of each of the first rotating columns (6) being fixed to a footrest (7), the top of each of the footrests (7) being provided with a recessed portion.
2. The gynecological clinical surgical exploration device according to claim 1, characterized in that: The auxiliary exploration mechanism further comprises a second rotating column (8), a knee support (9), a positioning gantry (10), a universal torsion metal strip (11) and an exploration light (12); the top of one end of the exploration bed (1) is rotatably connected to two second rotating columns (8) via a damper; the tops of the second rotating columns (8) are each fixed with a knee support (9); a positioning gantry (10) is fixed on both sides of the top of the exploration bed (1); the top of the inner side of the positioning gantry (10) is fixed with a universal torsion metal strip (11); and the bottom of the universal torsion metal strip (11) is fixed with an exploration light (12).
3. The gynecological clinical surgical exploration device according to claim 1, characterized in that: The top of the exploration bed (1) is also equipped with a matching exploration mechanism, which is used to shield the inspection site during exploration.
4. The gynecological clinical surgical exploration device according to claim 3, characterized in that: The cooperative exploration mechanism comprises an opening and closing component and a force component. A first connecting column (13) is fixed to one side of the exploration bed (1), the opening and closing component is mounted on the inner side of the first connecting column (13), and the force component is mounted on the inner side of the opening and closing component.
5. The gynecological clinical surgical exploration device according to claim 4, characterized in that: The opening and closing assembly comprises a first sliding inner groove (14), a first linkage block (15), a first arched connecting arm (16), a second arched connecting arm (17) and a second connecting column (18); one end of the first connecting column (13) is provided with a first sliding inner groove (14); the inner side of the first sliding inner groove (14) is slidably connected to the first linkage block (15); the inner side of the first linkage block (15) is rotatably connected to the first arched connecting arm (16) via a pin; the middle part of the first arched connecting arm (16) is rotatably connected to the second arched connecting arm (17) via a pin; the bottom of the second arched connecting arm (17) is rotatably connected to the first connecting column (13) via a pin; and the top of the first arched connecting arm (16) is rotatably connected to the second connecting column (18) via a pin.
6. The gynecological clinical surgical exploration device according to claim 5, characterized in that: The force-driven assembly comprises a second linkage block (19), a second sliding inner groove (20), a socket joint (21) and a semi-ring shielding frame (22); a second sliding inner groove (20) is provided on the inner side of the second connecting column (18); a second linkage block (19) is slidably connected to the inner side of the second sliding inner groove (20); the inner side of the second linkage block (19) is rotatably connected to the second arched connecting arm (17); a socket joint (21) is fixed to the outer side of the second connecting column (18); a semi-ring shielding frame (22) is fixed to one end of the socket joint (21); a cloth curtain is provided on the inner side of the semi-ring shielding frame (22).
7. The gynecological clinical surgical exploration device according to claim 1, characterized in that: A rectangular through slot (23) is provided on the inner side of the exploration bed (1), a tray support frame (24) is mounted on the inner side of the rectangular through slot (23), and a plurality of sampling tubes (25) are evenly distributed on the top of the tray support frame (24).
8. The gynecological clinical surgical exploration device according to claim 7, characterized in that: An adjustment mechanism is installed between the rectangular through slot (23) and the tray support frame (24), and the adjustment mechanism is used to adjust the position of the tray support frame (24).
9. The gynecological clinical surgical exploration device according to claim 8, characterized in that: The adjustment mechanism comprises a linear conductive rail (26), a side guide rail block (27), a U-shaped frame (28), an inner track groove (29), a mounting slide block (30), a motor (31), a central shaft (32), a gear (33), a tooth inner column (34) and an adjustment annular groove (35), a linear conductive rail (26) is fixed at both ends of the inner side of the rectangular through groove (23), both sides of the linear conductive rail (26) are slidably connected to the side guide rail blocks (27), a U-shaped frame (28) is fixed to one side of the two side guide rail blocks (27), the top of the U-shaped frame (28) is provided with an inner track groove (29), the inner side of the inner track groove (29) is slidably connected to the mounting slide block (3 0), a motor (31) is fixed on the top of the mounting sliding block (30), the motor (31) is fixed to the tray frame (24), the output end of the motor (31) passes through the mounting sliding block (30) and is fixed with a central shaft (32), a gear (33) is fixed on the outer side of the central shaft (32), a plurality of toothed internal columns (34) corresponding to the positions of the gears (33) are evenly fixed on the top of the linear conductive rail (26), the toothed internal columns (34) are all meshedly connected with the gears (33), an adjusting annular groove (35) is provided at the top of the linear conductive rail (26) and deviated from the toothed internal columns (34), and the adjusting annular groove (35) is slidably connected with the central shaft (32).