Fixing chair for thoracocentesis positioning

Abstract

The utility model discloses a fixing chair for thoracocentesis positioning, which comprises a chair seat, and a hip positioning mechanism for restoring the hip position of a patient is further arranged on the chair seat; the hip positioning mechanism comprises a hip positioning plate, the hip positioning plate is movably arranged on the surface of one side of the chair seat, a ball screw is arranged on the surface of one side of the chair seat, the ball screw is rotationally arranged in the mounting groove, a nut seat is further arranged on the ball screw, and the nut seat is connected with the hip positioning plate; a lug seat is further arranged on the surface of one side of the chair seat, a chair back rod is arranged in the lug seat, an angle adjusting mechanism used for resetting the angle of the chair back rod is further arranged on one side of the lug seat, and an armrest mechanism capable of being telescopically adjusted is further arranged in the chair back rod. The upper limb supporting angle of the patient in the ultrasonic sitting posture can be reset, and the thoracocentesis success rate is increased.

Description

Technical Field

[0001] This utility model belongs to the field of puncture auxiliary device technology, specifically relating to a fixed chair for thoracentesis positioning. Background Technology

[0002] When performing a thoracentesis, it is necessary to fix the patient's position. Usually, the patient is asked to sit in a regular chair. However, regular chairs have many problems. For example, when using a regular chair, the patient needs to face the back of the chair and maintain a certain sitting posture, with both arms placed on the back of the chair and the forehead or chin resting on the arms, which makes positioning and operation inconvenient.

[0003] A thoracentesis chair, as disclosed in utility model patent application CN221636540U, includes a seat; the front of the backrest is a convex curved surface; a sliding groove and a sliding rod are provided on the backrest support rod, one end of which is rotatably connected to a storage plate; and a box chair, the top of which is connected to the bottom of the seat via a sliding rail. This application improves patient comfort and corrects prone posture by using a convex curved backrest to ensure the backrest fits snugly against the patient's chest and abdomen, thus improving surgical outcomes. The retractable storage plate increases the storage surface area and can be hidden behind the backrest when not in use. The retractable box chair provides a seat for medical personnel to sit or kneel, thereby reducing physical exertion during thoracentesis procedures.

[0004] Because thoracentesis requires ultrasound to mark the puncture site before the procedure, the above method cannot restore the patient's sitting position during ultrasound, nor can it locate the support angle of the upper limbs or the support height of the hands, making it difficult to restore the sitting posture during ultrasound and affecting the accuracy of thoracentesis. Therefore, we propose a fixed chair for thoracentesis positioning. Utility Model Content

[0005] The purpose of this invention is to provide a fixed chair for thoracentesis positioning, in order to solve the problems mentioned in the background art. During thoracentesis, the patient needs to remain seated for an extended period of time, and the puncture site needs to be marked before the puncture is performed. However, the existing technology cannot restore the patient's seated position during ultrasound operation, nor can it locate the support angle of the upper limbs and the support height of the hands, making it difficult to restore the seated position during ultrasound and affecting the accuracy of thoracentesis.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a fixed chair for thoracentesis positioning, comprising a chair seat and a chair frame disposed at the bottom of the chair seat, wherein the chair seat is further provided with a buttock positioning mechanism for restoring the position of the patient's buttocks;

[0007] The hip positioning mechanism includes a hip positioning plate, which is movably disposed on one side surface of the chair seat. A ball screw is disposed on one side surface of the chair seat and is rotatably disposed in a mounting groove. The mounting groove is disposed on one side surface of the chair seat. A nut seat is also disposed on the ball screw and is connected to the hip positioning plate.

[0008] The chair seat also has an ear seat on one side surface, a backrest rod inside the ear seat, an angle adjustment mechanism for resetting the angle of the backrest rod on one side of the ear seat, and a telescopic adjustable armrest mechanism inside the backrest rod.

[0009] Preferably, a first drive motor is also provided at the bottom of the chair seat. A main bevel gear is provided at one end of the drive shaft of the first drive motor. The main bevel gear meshes with a driven bevel gear. The driven bevel gear is located on one side of the ball screw. The rotation direction of the ball screw can be controlled through the transmission between the main bevel gear and the driven bevel gear.

[0010] Preferably, a guide slider is also provided on one side of the bottom of the hip positioning plate. One end of the guide slider is slidably disposed in a guide groove, which is disposed on one side of the chair seat, thereby improving the guiding performance of the hip positioning plate when it moves.

[0011] Preferably, an auxiliary sealing plate is provided on one side surface of the hip positioning plate, and one end of the auxiliary sealing plate is slidably disposed in the storage groove. The storage groove is disposed on one side surface of the mounting groove and the guide slide groove. During the movement of the hip positioning plate, the mounting groove and the guide slide groove can be sealed, thereby improving the patient's comfort when sitting down.

[0012] Preferably, the angle adjustment mechanism includes a worm gear, which is rotatably disposed within a housing. The housing is disposed on one side surface of the earpiece. The worm gear meshes with a worm wheel, which is disposed on one side of a rotating shaft. The rotating shaft is rotatably disposed within the housing, with one end of the rotating shaft extending outside the earpiece. The backrest is connected to the rotating shaft, enabling adjustment of the angle of the backrest to position the patient's upper limb support angle.

[0013] Preferably, an indicator needle is provided on one side of the rotating shaft, with the end of the indicator needle extending to an angle mark. The angle mark is provided on the other side surface of the ear seat, which can accurately indicate the support angle of the chair back rod.

[0014] Preferably, the armrest mechanism includes an adjusting rod, which is movably disposed within the backrest rod. An electric push rod is also disposed within the backrest rod, and one end of the piston rod of the electric push rod is connected to the adjusting rod, enabling adjustment of the armrest support height.

[0015] Preferably, the end of the adjusting rod is also provided with a crossbar, and the crossbar is also provided with handrail pads on both sides to support the patient's hands.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] (1) This utility model can locate the position of the buttocks in the patient's ultrasound sitting posture, thereby resetting the patient's buttocks sitting position during ultrasound, which facilitates the subsequent positioning of the patient's upper limbs.

[0018] (2) This utility model can adjust the angle of the chair back bar, restore the upper limb support angle when the patient is in an ultrasound sitting position, and adjust the hand support height, which is convenient for patients of different heights and improves the success rate of thoracentesis. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a half-sectional structural diagram of the hip positioning mechanism in this utility model;

[0021] Figure 3 for Figure 2 Enlarged structural diagram at point B;

[0022] Figure 4 This is a schematic diagram of the angle adjustment mechanism in this utility model;

[0023] Figure 5 for Figure 1 Enlarged structural diagram at point A;

[0024] Figure 6 This is a schematic diagram of the split structure of the handrail mechanism in this utility model;

[0025] In the diagram: 1. Hip positioning mechanism; 2. Seat; 3. Angle adjustment mechanism; 4. Armrest mechanism; 5. Backrest rod; 6. Chair frame; 7. Ear seat; 31. Box body; 32. Worm gear; 33. Worm wheel; 34. Second drive motor; 35. Rotating shaft; 36. Angle mark; 37. Indicator needle; 41. Electric push rod; 42. Adjustment rod; 43. Crossbar; 44. Armrest pad; 101. Hip positioning plate; 102. Guide slide; 103. Mounting slot; 104. Ball screw; 105. Nut seat; 106. First drive motor; 107. Storage slot; 108. Guide slider; 109. Main bevel gear; 110. Driven bevel gear; 111. Sealing plate. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figures 1-3 This utility model provides a technical solution: a fixed chair for thoracentesis positioning, wherein a chair frame 6 is fixedly installed at the bottom of the chair seat 2, and a hip positioning mechanism 1 is also provided on the chair seat 2;

[0028] The hip positioning mechanism 1 includes a hip positioning plate 101, which is movably mounted on one side surface of the chair seat 2. A ball screw 104 is mounted on one side surface of the chair seat 2 and is rotatably mounted in a mounting groove 103. The mounting groove 103 is located on one side surface of the chair seat 2. A nut seat 105 is also mounted on the ball screw 104 and is connected to the hip positioning plate 101. By rotating the ball screw 104, the movement position of the hip positioning plate 101 can be controlled, thereby positioning the patient's hip.

[0029] The bottom of the seat 2 is also provided with a first drive motor 106. One end of the drive shaft of the first drive motor 106 is provided with a main bevel gear 109. The main bevel gear 109 meshes with a driven bevel gear 110. The driven bevel gear 110 is located on one side of the ball screw 104. Through the transmission between the main bevel gear 109 and the driven bevel gear 110, the rotation direction of the ball screw 104 can be controlled.

[0030] Before use, the device is placed in both the ultrasound room and the puncture room. During ultrasound, the patient sits on the chair 2 and controls the movement of the buttock positioning plate 101 so that the buttock positioning plate 101 fits against the patient's buttocks. Then, the angle of the chair back 5 is adjusted by the angle adjustment mechanism 3, and the height of the armrest mechanism 4 is adjusted. The patient's buttock position, the angle of the chair back 5, and the height of the armrest mechanism 4 are recorded. The patient determines the puncture position through ultrasound.

[0031] When a patient undergoes puncture in the puncture room, based on the recorded buttock position, the first drive motor 106 drives the main bevel gear 109 to rotate, the main bevel gear 109 drives the driven bevel gear 110 to rotate, the driven bevel gear 110 drives the ball screw 104 to rotate, the ball screw nut 105 moves and drives the buttock positioning plate 101 to move, and moves the buttock positioning plate 101 to the sitting position of the patient's buttocks during ultrasound, which can accurately reset the patient's sitting position during ultrasound.

[0032] Furthermore, a guide slider 108 is also provided on one side of the bottom of the hip positioning plate 101. One end of the guide slider 108 is slidably disposed in the guide groove 102, which is disposed on one side of the seat 2. When the hip positioning plate 101 moves, it drives the guide slider 108 to move in the guide groove 102, which can improve the guidance of the hip positioning plate 101 when it moves.

[0033] Furthermore, an auxiliary sealing plate 111 is provided on one side surface of the hip positioning plate 101. One end of the auxiliary sealing plate 111 is slidably disposed in the storage groove 107. The storage groove 107 is disposed on one side surface of the mounting groove 103 and the guide slide groove 102. During the movement of the hip positioning plate 101, the sealing plate 111 is driven to move within the storage groove 107, which can ensure the sealing of the mounting groove 103 and the guide slide groove 102 and improve the patient's comfort when sitting down.

[0034] Specifically, a scale mark is also provided on one side surface of the seat 2, which can accurately indicate the moving position of the buttock positioning plate 101.

[0035] Please see Figure 4 as well as Figure 5 The chair seat 2 has an ear seat 7 on one side surface, a backrest 5 inside the ear seat 7, and an angle adjustment mechanism 3 on one side of the ear seat 7. The angle adjustment mechanism 3 includes a worm gear 32, which is rotatably disposed inside the housing 31. Specifically, the worm gear 32 is also connected to the drive shaft of a second drive motor 34 located on one side of the housing 31. The rotation direction of the worm gear 32 can be controlled by the second drive motor 34. The housing 31 is disposed on one side surface of the ear seat 7, and the worm gear 32 meshes with a worm wheel 33. The worm wheel 33 is disposed on one side of a rotating shaft 35, which is rotatably disposed inside the housing 31, with one end of the rotating shaft 35 extending outside one side of the ear seat 7. The backrest 5 is connected to the rotating shaft 35, which can adjust the angle of the backrest 5, thereby positioning the upper limb support angle of the patient.

[0036] The angle of the chair backrest 5 is adjusted according to the ultrasound position. The second drive motor 34 drives the worm gear 32 to rotate, the worm gear 32 rotates, the worm gear 32 rotates, the worm gear 32 rotates, the rotating shaft 35 rotates, and the rotating shaft 35 drives the chair backrest 5 to rotate. This can adjust the support angle of the chair backrest 5 and reset the support angle of the patient during ultrasound.

[0037] Furthermore, an indicator needle 37 is provided on one side of the rotating shaft 35, with the end of the indicator needle 37 extending to the angle mark 36. The angle mark 36 is provided on the other side surface of the ear seat 7. The rotation of the rotating shaft 35 drives the indicator needle 37 to rotate. According to the mark indicated by the indicator needle 37, the support angle of the chair back rod 5 can be accurately indicated.

[0038] Please see Figure 6The chair backrest 5 is also equipped with a telescopic and adjustable armrest mechanism 4. The armrest mechanism 4 includes an adjustment rod 42, which is movably installed inside the chair backrest 5. The chair backrest 5 is also equipped with an electric push rod 41. One end of the piston rod of the electric push rod 41 is connected to the adjustment rod 42, which can adjust the hand support height. The end of the adjustment rod 42 is also equipped with a crossbeam 43, and armrest pads 44 are provided on both sides of the crossbeam 43 to support the patient's hands.

[0039] By controlling the extension and retraction of the electric push rod 41, the adjusting rod 42 moves within the chair back rod 5, and the height of the adjusting rod 42 is adjusted. The raising and lowering of the adjusting rod 42 drives the raising and lowering of the crossbar 43, which in turn drives the raising and lowering of the two sets of armrest pads 44, thus adjusting the height of the armrest pads 44. According to the markings on the adjusting rod 42, the hand support height of the patient during ultrasound can be accurately reset, while also accommodating patients of different heights. Then, the patient sits on the chair seat 2, with their buttocks aligned with the buttock positioning plate 101 and their arms resting on the armrest pads 44, thus replicating the patient's sitting posture during ultrasound. Then, medical staff perform thoracentesis according to the puncture marks, improving the success rate of thoracentesis.

[0040] The application provides a control switch on one side of the chair seat 2 to control the operation of the first drive motor 106, the second drive motor 34, and the electric push rod 41.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fixing chair for thoracentesis positioning, comprising a seat (2) and a chair frame (6) arranged at the bottom of the seat (2), characterized in that: The chair seat (2) is also provided with a hip positioning mechanism (1) for restoring the position of the patient's hips; The hip positioning mechanism (1) includes a hip positioning plate (101), which is movably disposed on one side surface of the seat (2). A ball screw (104) is disposed on one side surface of the seat (2). The ball screw (104) is rotatably disposed in a mounting groove (103), which is disposed on one side surface of the seat (2). A nut seat (105) is also disposed on the ball screw (104), and the nut seat (105) is connected to the hip positioning plate (101). Among them, an ear seat (7) is provided on one side surface of the seat (2), a backrest rod (5) is provided in the ear seat (7), an angle adjustment mechanism (3) for resetting the angle of the backrest rod (5) is provided on one side of the ear seat (7), and a telescopic adjustable armrest mechanism (4) is provided in the backrest rod (5).

2. The fixing chair for thoracentesis positioning according to claim 1, characterized in that: The bottom of the seat (2) is also provided with a first drive motor (106). One end of the drive shaft of the first drive motor (106) is provided with a main bevel gear (109). The main bevel gear (109) meshes with a driven bevel gear (110). The driven bevel gear (110) is located on one side of the ball screw (104).

3. The chair for positioning of a thoracic puncture according to claim 1, characterized in that: The bottom side of the hip positioning plate (101) is also provided with a guide slider (108), one end of which is slidably disposed in the guide groove (102), which is disposed on one side of the seat (2).

4. The fixing chair for thoracentesis positioning according to claim 1 or 3, characterized in that: An auxiliary sealing plate (111) is provided on one side surface of the hip positioning plate (101), and one end of the auxiliary sealing plate (111) is slidably disposed in the storage groove (107). The storage groove (107) is disposed on one side surface of the mounting groove (103) and the guide groove (102).

5. The chair for positioning of a thoracic puncture according to claim 1, characterized in that: The angle adjustment mechanism (3) includes a worm gear (32), which is rotatably disposed inside a housing (31). The housing (31) is disposed on one side surface of the ear seat (7). The worm gear (32) meshes with a worm wheel (33), which is disposed on one side of a rotating shaft (35). The rotating shaft (35) is rotatably disposed inside the housing (31), and one end of the rotating shaft (35) extends to the outside of one side of the ear seat (7). The backrest rod (5) is connected to the rotating shaft (35).

6. The chair for positioning of a thoracic puncture according to claim 5, characterized in that: An indicator needle (37) is provided on one side of the rotating shaft (35), and the end of the indicator needle (37) extends to the angle mark (36), which is provided on the other side surface of the ear seat (7).

7. The chair for positioning of a thoracic puncture according to claim 1, characterized in that: The armrest mechanism (4) includes an adjusting rod (42), which is movably disposed inside the backrest rod (5). An electric push rod (41) is also disposed inside the backrest rod (5), and one end of the piston rod of the electric push rod (41) is connected to the adjusting rod (42).

8. The chair for positioning of a thoracic puncture according to claim 7, characterized in that: The end of the adjusting rod (42) is also provided with a crossbar (43), and handrail pads (44) are provided on both sides of the crossbar (43).

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