Multifunctional protective stomach tube fixing structure

Abstract

The invention discloses a multifunctional protective stomach tube fixing structure which comprises a mounting plate, a mounting frame is connected to the right rear side of the mounting plate, a spline shaft is rotatably and slidably connected to the right upper side of the mounting frame, a rotating plate is connected to the lower portion of the spline shaft, a first electric clamp used for clamping a stomach tube is arranged on the rotating plate, and a sliding plate is arranged on the front side of the mounting plate. An electric clamp II for clamping the stomach tube is arranged at the bottom of the sliding plate. Through the arrangement of the first electric clamp and the second electric clamp, it can be ensured that the stomach tube is stably clamped, movement of the stomach tube is effectively limited, and the stomach tube is prevented from falling off; through cooperation of the spline shaft, the head cover and the driving mechanism, automatic adjustment can be achieved when the head of a patient rotates, activity allowance is reserved for possible pulling, a stomach tube in a human body is prevented from being pulled, the natural trend of the stomach tube is maintained, and traction stress accumulation is prevented, so that the discomfort of the patient is reduced, and the effectiveness of nutrition delivery is ensured; therefore, the multifunctional protection effect is achieved, stable fixation of the stomach tube is guaranteed, and the use safety and comfort are improved.

Description

Technical Field

[0001] This invention relates to the field of medical auxiliary equipment technology, and in particular to a multifunctional protective gastric tube fixation structure. Background Technology

[0002] A nasogastric tube is a medical device used to deliver essential fluids and food to patients who cannot swallow in special circumstances. Current methods for securing nasogastric tubes to prevent them from falling out typically involve using adhesive tape to attach the end inserted into the nasal cavity to the face. This method is not only cumbersome, requiring repeated peeling and re-attaching of the tape, but it is also easily contaminated by the patient's sweat, causing the tape to lose its adhesiveness and detach. Furthermore, prolonged use of adhesive tape can cause facial discomfort for the patient. Additionally, the exposed portion of the nasogastric tube is easily touched or pulled by caregivers; if this pulling is not stopped promptly, part of the tube may be pulled out, increasing the risk of external bacterial infection.

[0003] A search revealed a Chinese patent with publication number CN115778824B, which describes a device for preventing the detachment of a gastric tube. The device includes a base plate and a vertical plate. A clamping mechanism is installed on the front end of the vertical plate, and a spraying disinfection mechanism is installed on the upper end of the base plate.

[0004] While the aforementioned patent enables automatic clamping of the gastric tube to prevent dislodgement, its design still has certain limitations. For example, when the upper right clamping plate rotates and resets to clamp the patient's head, the two arc-shaped clamps hold the gastric tube using a combination of pins, spiral grooves, movable shafts, rings, sliding shafts, bending rods, and clamping springs. However, since each patient's head size varies, for patients with larger heads, it may not be possible to ensure that the two arc-shaped clamps can stably clamp the gastric tube; while for patients with smaller heads, the clamping may be too tight, affecting the normal delivery of water and food. Furthermore, the automatic limiting and stopping mechanism mentioned in the patent can stop the gastric tube when it is pulled, preventing further dislodgement, but when the gastric tube is pulled, the area near the body is still easily pulled, which can lead to dislodgement and affect the patient's normal use. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and propose a multi-functional protective gastric tube fixing structure that can stably clamp the gastric tube, effectively restrict its movement, automatically adjust when the patient's head rotates, and reserve slack for possible subsequent pulling.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a multifunctional protective gastric tube fixing structure, including a mounting plate, a mounting bracket connected to the right rear side of the mounting plate, a spline shaft rotatably and slidably connected to the upper right side of the mounting bracket, a head cover for wearing on the patient's head connected to the bottom end of the spline shaft, a rotating plate connected to the lower part of the spline shaft, a support spring connected between the rotating plate and the head cover, an electric clamp for clamping the gastric tube on the rotating plate, the electric clamp being located in front of the head cover, a clamping component for clamping and fixing the gastric tube to the bed on the rear side of the mounting plate, a sliding plate on the front side of the mounting plate, an electric clamp for clamping the gastric tube at the bottom of the sliding plate, a driving mechanism on the mounting plate, the driving mechanism being connected to the spline shaft, the spline shaft rotating to drive the driving mechanism to move the sliding plate backward, and the spline shaft reversing to drive the driving mechanism to move the sliding plate forward.

[0007] Preferably, the electric clamp includes two sliders that are slidably connected to a rotating plate. The bottom of the sliders is connected to a clamping rod for holding the gastric tube. The rotating plate is provided with a bidirectional lead screw motor for driving the two sliders to move closer to each other and further apart.

[0008] Preferably, the electric clamp 2 includes a connecting frame connected to the bottom of the slide plate. The left side of the connecting frame is slidably connected to two clamping blocks for clamping the gastric tube via a guide rod. A spring is connected between the clamping blocks and the connecting frame. An electric push rod is installed on the left side of the connecting frame. A V-shaped push block for pushing the two clamping blocks closer to each other is connected to the telescopic rod of the electric push rod.

[0009] Preferably, the drive mechanism includes a rotating shaft 1 rotatably connected to the upper part of the mounting plate, the rotating shaft 1 slidingly passing through the slide plate, a spiral groove on the front side of the rotating shaft 1, and a ball bearing located in the spiral groove connected to the slide plate. A rotating shaft 2 is rotatably connected to the rear side of the top of the mounting plate. The rotating shaft 2 is connected to the rotating shaft 1 through a bevel gear set 1. A spline sleeve is rotatably connected to the top of the mounting bracket. The top end of the spline shaft extends into the spline sleeve. The spline sleeve is connected to the rotating shaft 2 through a belt drive assembly.

[0010] Preferably, the top of the mounting frame is provided with a lifting mechanism for lifting the gastric tube. The lifting mechanism includes a slide rail connected to the top of the mounting frame, a slotted lifting plate on the slide rail, and a slotted lifting plate for lifting the gastric tube connected to the bottom of the slotted lifting plate. The slotted lifting plate is located between electric clamp one and electric clamp two. A pushing component is provided on the upper front side of the mounting frame. The pushing component is connected to a spline sleeve. When the spline sleeve rotates, it drives the pushing component to push the slotted lifting plate upward. When the spline sleeve reverses, it drives the pushing component to push the slotted lifting plate downward.

[0011] Preferably, the pushing component includes a disc rotatably connected to the upper front side of the mounting bracket via a rotating shaft, a lever connected at an eccentric position on the disc, the lever being located in the groove of the slotted lifting plate, and a spline sleeve being drivenly connected to the rotating shaft via a bevel gear set two.

[0012] Preferably, the head cover includes an arc-shaped elastic rod, connecting blocks, and earmuffs. The arc-shaped elastic rod has two sections, one at the front and one at the back. Three connecting blocks are evenly spaced along the axial direction between the two arc-shaped elastic rods. Two earmuffs for wearing on the patient's ears are connected between the two arc-shaped elastic rods. The earmuffs are located below the connecting blocks and have ventilation holes for ventilation. The head cover is connected to the bottom end of the spline shaft through the connecting block in the middle.

[0013] Preferably, the clamping component includes two left and right clamping plates that are slidably disposed on the rear side of the mounting plate, and the rear side of the mounting plate is provided with a bidirectional screw for driving the two clamping plates to move closer to each other and further away from each other.

[0014] Preferably, the headgear is provided with an adaptive mechanism, which includes two connecting plates respectively hinged to the side of the left and right connecting blocks that are close to each other. Each side of the two connecting plates that are close to each other is hinged with a connecting block. A rubber pad is connected to the connecting block. A torsion spring one is connected between the connecting block and the connecting plate connected to it, and a torsion spring two is connected between the connecting plate and the connecting block connected to it.

[0015] Preferably, a rubber sleeve is connected to the clamping rod, and a rubber block is connected to the clamping part of the clamping block.

[0016] Compared with the prior art, the present invention has the following advantages: 1. The first electric clamp can initially clamp and fix the gastric tube, and the second electric clamp can further clamp and fix the gastric tube to ensure stable clamping of the gastric tube, effectively restrict the movement of the gastric tube and prevent the gastric tube from falling off.

[0017] 2. Through the cooperation of the spline shaft, head cover and drive mechanism, it can automatically adjust when the patient's head rotates, leaving room for possible pulling, avoiding pulling the gastric tube inside the body, maintaining the natural direction of the gastric tube and preventing the accumulation of tensile stress, thereby reducing patient discomfort, ensuring the effectiveness of nutrition delivery, and thus achieving a multi-functional protective effect, ensuring the stable fixation of the gastric tube, and improving the safety and comfort of use.

[0018] 3. The lifting mechanism, consisting of a slotted lifting plate, a slotted raising plate, a rotating shaft, a disc, a lever, and a bevel gear set 2, can lift the gastric tube area between the electric clamps 1 and 2 upwards when the electric clamp 2 pulls the gastric tube backwards to leave a margin. This prevents the gastric tube from sagging due to gravity and pulling on the insertion site near the human body, further ensuring the stable fixation of the gastric tube and improving the anti-dislodgement effect. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0020] Figure 2 This is a three-dimensional structural diagram of the electric clamp of the present invention.

[0021] Figure 3 This is a three-dimensional structural diagram of the headgear and clamping component of the present invention.

[0022] Figure 4 This is a schematic diagram of the installation of the electric clamp and drive mechanism of the present invention.

[0023] Figure 5 This is a partial three-dimensional structural diagram of the driving mechanism of the present invention.

[0024] Figure 6 This is a three-dimensional structural diagram of the electric clamp II of the present invention.

[0025] Figure 7 This is a schematic diagram of the installation of the lifting mechanism of the present invention.

[0026] Figure 8 This is a three-dimensional structural diagram of the lifting mechanism of the present invention.

[0027] Figure 9 This is a three-dimensional structural diagram of the adaptive mechanism of the present invention.

[0028] In the diagram: 1-Mounting plate, 01-Guide rod, 2-Mounting bracket, 21-L-shaped plate, 22-Cylinder, 3-Splined shaft, 4-Head cover, 41-Arc-shaped elastic rod, 42-Connecting block, 43-Ear cover, 44-Ventilation port, 5-Support spring, 6-Rotating plate, 61-Z-shaped connecting plate, 62-Guide rail, 7-Clamping component, 71-Clamping plate, 72-Double-actuated screw, 8-Electric clamp one, 81-Slider, 82-Clamping rod, 83-Double-actuated screw motor, 9-Slide plate, 10-Electric clamp two, 101-Connecting bracket, 102-Guide rod, 103-Clamping block, 104-Tension spring. 105-Electric push rod, 106-V-shaped push block, 111-Shaft 1, 112-Shaft 2, 113-Bevel gear set 1, 114-Spline sleeve, 115-Belt drive assembly, 116-Helical groove, 117-Ball bearing, 121-Slide rail, 122-Slotted lifting plate, 123-Slotted lifting plate, 124-Rotating shaft, 125-Disc, 126-Lever, 127-Bevel gear set 2, 131-Connecting plate, 132-Connecting block, 133-Rubber pad, 134-Torsion spring 1, 135-Torsion spring 2, 14-Rubber sleeve, 15-Rubber block, 16-Gastric tube. Detailed Implementation

[0029] Please see Figures 1-6A multifunctional protective gastric tube fixing structure includes a mounting plate 1. A mounting bracket 2 is connected to the right rear side of the mounting plate 1. The mounting bracket 2 includes an L-shaped plate 21 connected to the right rear side of the mounting plate 1 and a cylinder 22 connected to the upper right side of the L-shaped plate 21. A spline shaft 3 is rotatably and slidably connected to the cylinder 22. A head cover 4 for wearing on the patient's head is connected to the bottom end of the spline shaft 3. The head cover 4 includes arc-shaped elastic rods 41, connecting blocks 42, and earmuffs 43. There are two arc-shaped elastic rods 41, one at the front and one at the back. Three connecting blocks 42 are evenly spaced along the axial direction between the two arc-shaped elastic rods 41. Two earmuffs 43 for wearing on the patient's ears are connected between the two arc-shaped elastic rods 41. The earmuffs 43 are located below the connecting blocks 42 and have ventilation holes 4 for ventilation. 4. The head cover 4 is connected to the bottom end of the spline shaft 3 via a connecting block 42 in the middle. A rotating plate 6 is rotatably connected to the bottom of the cylinder 22. The rotating plate 6 includes a Z-shaped connecting plate 61 rotatably connected to the bottom of the cylinder 22 and a guide rail 62 connected to the front side of the Z-shaped connecting plate 61. The Z-shaped connecting plate 61 is fixedly connected to the lower part of the spline shaft 3. A support spring 5 is sleeved on the lower part of the spline shaft 3. The two ends of the support spring 5 are respectively connected to the bottom of the Z-shaped connecting plate 61 and the top of the connecting block 42 in the middle on the head cover 4. An electric clamp 8 for clamping the gastric tube 16 is provided on the guide rail 62. The electric clamp 8 includes two sliders 81 that are slidably connected to the guide rail 62. A clamping rod 82 for clamping the gastric tube 16 is connected to the bottom of the sliders 81. A bidirectional lead screw motor 83 is provided on the guide rail 62. The bidirectional screw on the bidirectional screw motor 83 is threadedly connected to the slider 81 to drive the two sliders 81 to move closer and further apart. A rubber sleeve 14 is connected to the clamping rod 82, which not only increases the friction between the clamping rod 82 and the gastric tube 16 to ensure a firm clamping, but also provides cushioning protection to prevent the clamping rod 82 from directly pressing the gastric tube 16 and causing excessive clamping, thus ensuring smooth delivery of water and nutrients. A clamping component 7 is provided on the rear side of the mounting plate 1 for clamping and fixing it to the hospital bed. The clamping component 7 includes a clamping plate 71 and a bidirectional screw 72. A sliding groove is opened on the rear side of the mounting plate 1, in which the left and right clamping plates 71 are slidably connected. The bidirectional screw 72 is rotatably connected to the rear side of the mounting plate 1, and the bidirectional screw 72 is threadedly connected to the two clamping plates 71 to drive... The two clamping plates 71 are brought closer together and moved further apart. A receiving groove is opened on the front side of the mounting plate 1, and a sliding plate 9 is installed in the receiving groove. A guide rod 01 is connected to the receiving groove and slides through the sliding plate 9 to guide its forward and backward movement. An electric clamp 10 for holding the gastric tube 16 is provided at the bottom of the sliding plate 9. The electric clamp 10 includes a connecting frame 101 connected to the bottom of the sliding plate 9. Two guide rods 102 are connected to the left side of the connecting frame 101. Two clamping blocks 103 for holding the gastric tube 16 are slidably connected between the two guide rods 102. The clamping blocks 103 consist of a horizontal section and an arc-shaped section, which can more effectively conform to the shape of the gastric tube 16 and achieve a good clamping effect. Two tension springs 104 are fitted on the guide rods 102.The two ends of the tension spring 104 are connected to the clamping block 103 and the connecting frame 101, respectively. An electric push rod 105 is installed on the left side of the connecting frame 101. A V-shaped push block 106 for pushing the two clamping blocks 103 closer to each other is connected to the telescopic rod of the electric push rod 105. A rubber block 15 is connected to the arc-shaped clamping part of the clamping block 103, which not only increases the friction between the clamping block 103 and the gastric tube 16 to ensure a firm clamping, but also provides buffer protection to prevent the clamping block 103 from directly pressing the gastric tube 16 and causing excessive clamping, thereby ensuring the smooth delivery of water and nutrients. A drive mechanism is provided on the mounting plate 1. The drive mechanism is connected to the spline shaft 3. When the spline shaft 3 rotates, it drives the drive mechanism to drive the slide plate 9 to move backward. When the spline shaft 3 reverses, it drives the drive mechanism to drive the slide plate 9 to move forward. The drive mechanism includes a rotating shaft that is rotatably connected to the upper part of the mounting plate 1. A sliding shaft 111 slides through the slide plate 9. A spiral groove 116 is opened on the front side of the shaft 111. A ball bearing 117 located within the spiral groove 116 is connected to the slide plate 9. A rotating shaft 112 is rotatably connected to the top rear side of the mounting plate 1. The rotating shaft 112 is connected to the rotating shaft 111 via a bevel gear set 113. The bevel gear set 113 includes two bevel gears, which are respectively connected to the rotating shaft 112 and the rotating shaft 111, and the two bevel gears mesh. A spline sleeve 114 is rotatably connected to the top of the cylinder 22 on the mounting bracket 2. The top end of the spline shaft 3 extends into the spline sleeve 114. The spline sleeve 114 is connected to the rotating shaft 112 via a belt drive assembly 115. The belt drive assembly 115 includes two pulleys respectively connected to the spline sleeve 114 and the rotating shaft 112, and a flat belt fitted between the two pulleys.

[0030] After inserting the gastric tube 16 into the patient, the device is first placed on the hospital bed, and the head cover 4 is placed on the patient's head. Then, the bidirectional screw 72 is rotated to drive the two clamping plates 71 to move closer together and clamp and fix them at the head of the hospital bed, thereby fixing the device to the hospital bed. Next, the gastric tube 16 is placed between the two left and right clamping rods 82 and the two upper and lower clamping blocks 103. Then, the bidirectional lead screw motor 83 is controlled to drive the two sliders 81 to move the two clamping rods 82 closer together to clamp the gastric tube 16, achieving initial clamping and fixation of the gastric tube 16. Subsequently, the electric push rod 105 is controlled to drive the V-shaped push block 106 to move to the right, squeezing the two clamping blocks 103 closer together to clamp the gastric tube 16, stretching the tension spring 104, further clamping and fixing the gastric tube 16, ensuring stable clamping of the gastric tube 16, effectively restricting the movement of the gastric tube 16, and preventing the gastric tube 16 from falling out.

[0031] When the patient's head turns to the side (left or right), the head cover 4 rotates around the spline shaft 3, which in turn rotates the spline shaft 3. This causes the rotating plate 6 to rotate the electric clamp 8, pulling the gastric tube 16 located in the area in front of the electric clamp 8 backward, preventing it from being pulled inside the body. The rotation of the spline shaft 3 causes the spline sleeve 114 to rotate, which in turn drives the rotating shaft 112 to rotate via the belt drive assembly 115. This, in turn, drives the rotating shaft 111 to rotate via the bevel gear set 113. The rotation of the rotating shaft 111 pushes the ball bearing 117 backward through the spiral groove 116, which in turn causes the sliding plate 9 to drive the electric clamp 10 to move backward, further pulling the gastric tube 16 backward. This provides room for movement in case of potential pulling, maintains the natural orientation of the gastric tube 16, and prevents the accumulation of tensile stress, thereby reducing patient discomfort, ensuring the effectiveness of nutrient delivery, and achieving a multi-functional protective effect. This ensures the stable fixation of the gastric tube 16 and improves the safety and comfort of use.

[0032] When the patient's head returns to the center position, the head cover 4 rotates in reverse around the spline shaft 3, thus reversing the spline shaft 3. This causes the rotating plate 6 to reverse the electric clamp 8, pulling the gastric tube 16, located in the area in front of the electric clamp 8, forward to reposition it. The reversal of the spline shaft 3 causes the spline sleeve 114 to reverse, which in turn drives the rotating shaft 112 to reverse via the belt drive assembly 115. This, in turn, drives the rotating shaft 111 to reverse via the bevel gear set 113. The reversal of the rotating shaft 111 pushes the ball bearing 117 forward through its spiral groove 116, causing the sliding plate 9 to move the electric clamp 10 forward, pulling the gastric tube 16 forward to reposition it. This maintains the natural orientation of the gastric tube 16 and prevents the accumulation of tensile stress, thereby reducing patient discomfort, ensuring the effectiveness of nutrient delivery, and achieving a multi-functional protective effect. It also ensures the stable fixation of the gastric tube 16, improving the safety and comfort of use.

[0033] If the patient needs to walk or engage in physical activity, the bidirectional screw 72 is reversed to drive the two clamps 71 away from each other and detach them from the bed, thereby releasing the locking of the device. To release the clamp on the gastric tube 16, first control the bidirectional screw motor 83 to drive the two sliders 81 to move the two clamping rods 82 away from each other and release the gastric tube 16. Then, control the electric push rod 105 to drive the V-shaped push block 106 to move to the left and disengage from the clamping block 103. Under the reset action of the tension spring 104, the two clamping blocks 103 move away from each other and release the gastric tube 16.

[0034] Please see Figure 1 , Figure 7 and Figure 8The L-shaped plate 21 has a lifting mechanism at its top for lifting the gastric tube 16. The lifting mechanism includes a slide rail 121 connected to the top of the L-shaped plate 21. A slotted lifting plate 122 is slidably mounted on the slide rail 121. A slotted lifting plate 123 for lifting the gastric tube 16 is connected to the bottom of the slotted lifting plate 122. The slotted lifting plate 123 is located between the electric clamp 8 and the electric clamp 10. The slotted lifting plate 123 is L-shaped. A pushing component is provided on the upper front side of the L-shaped plate 21. The pushing component is connected to the spline sleeve 114. When the spline sleeve 114 rotates, it drives the pushing component to push the slotted lifting plate 122 upward. When the spline sleeve 114 reverses, it drives the push assembly to push the slotted lifting plate 122 downward. The push assembly includes a rotating shaft 124 rotatably connected to the upper front side of the L-shaped plate 21. A disc 125 is connected to the front side of the rotating shaft 124. A lever 126 is connected to the eccentric position on the front side of the disc 125. The lever 126 is located in the slot of the slotted lifting plate 122. The spline sleeve 114 is connected to the rotating shaft 124 through a bevel gear set 2 127. The bevel gear set 2 127 includes a large bevel gear connected to the spline sleeve 114 and a small bevel gear connected to the rotating shaft 124. The large bevel gear and the small bevel gear mesh.

[0035] The gastric tube 16 is placed into the groove of the slotted lifting plate 123. When the spline sleeve 114 rotates, the rotating shaft 124 is driven to rotate the disc 125 through the bevel gear set 127. The rotation of the disc 125 pushes the slotted lifting plate 122 through the lever 126, which in turn moves the slotted lifting plate 123 upward, lifting the gastric tube area between the electric clamp 8 and the electric clamp 10 upward. This prevents the gastric tube 16 from drooping due to gravity when the electric clamp 10 pulls the gastric tube 16 backward, thus avoiding pulling on the insertion site near the human body. This further ensures the stable fixation of the gastric tube 16 and improves the anti-dislodgement effect. When the spline sleeve 114 reverses, the rotating shaft 124 is driven by the bevel gear set 127 to reverse the disk 125. The reverse rotation of the disk 125 pushes the slotted lifting plate 122 through the lever 126, causing the slotted lifting plate 123 to move down, releasing the gastric tube segment located between the electric clamp 8 and the electric clamp 10, ensuring that the electric clamp 10 can smoothly pull the gastric tube segment located between the electric clamp 8 and the electric clamp 10 without interference.

[0036] Please see Figures 8-9 The headgear 4 is equipped with an adaptive mechanism, which includes two connecting plates 131 respectively hinged to the left and right connecting blocks 42 on their respective sides. Each of the two connecting plates 131 is hinged to a connecting block 132 on its respective side. A rubber pad 133 is connected to the connecting block 132. Two torsion springs 134 are connected between the connecting block 132 and the connecting plate 131 connected to it. Two torsion springs 135 are connected between the connecting plate 131 and the connecting block 42 connected to it.

[0037] After the head cover 4 is worn on the patient's head, the elastic action of the torsion spring 134 and the torsion spring 135 makes the connecting block 132 fit tightly against the patient's head. The rubber pad 133 not only improves the wearing comfort, but also helps to enhance the fit stability between the head cover 4 and the head, thereby better adapting to patients with different head sizes and achieving stable and reliable wearing.

Claims

1. A multifunctional protective gastric tube fixation structure, characterized in that, The device includes a mounting plate (1), a mounting bracket (2) connected to the right rear side of the mounting plate (1), a spline shaft (3) rotatably and slidably connected to the upper right side of the mounting bracket (2), a head cover (4) for wearing on the patient's head connected to the bottom end of the spline shaft (3), a rotating plate (6) connected to the lower part of the spline shaft (3), a support spring (5) connected between the rotating plate (6) and the head cover (4), and an electric clamp (8) for clamping the gastric tube (16) on the rotating plate (6). The electric clamp (8) is located on the head cover (16). 4) The front side of the mounting plate (1) is provided with a clamping device (7) for clamping and fixing it to the hospital bed. The front side of the mounting plate (1) is provided with a sliding plate (9). The bottom of the sliding plate (9) is provided with an electric clamp (10) for clamping the gastric tube (16). The mounting plate (1) is provided with a drive mechanism. The drive mechanism is connected to the spline shaft (3) for transmission. When the spline shaft (3) rotates, it drives the drive mechanism to drive the sliding plate (9) to move backward. When the spline shaft (3) reverses, it drives the drive mechanism to drive the sliding plate (9) to move forward.

2. The multifunctional protective gastric tube fixation structure according to claim 1, characterized in that, The electric clamp (8) includes two sliders (81) that are slidably connected to the rotating plate (6). The bottom of the slider (81) is connected to a clamping rod (82) for clamping the gastric tube (16). The rotating plate (6) is provided with a bidirectional screw motor (83) for driving the two sliders (81) to move closer to each other and further away from each other.

3. The multifunctional protective gastric tube fixation structure according to claim 2, characterized in that, The electric clamp 2 (10) includes a connecting frame (101) connected to the bottom of the slide plate (9). The left side of the connecting frame (101) is slidably connected to two upper and lower clamping blocks (103) for clamping the gastric tube (16) via a guide rod (102). A spring is connected between the clamping blocks (103) and the connecting frame (101). An electric push rod (105) is installed on the left side of the connecting frame (101). A V-shaped push block (106) for pushing the two clamping blocks (103) closer to each other is connected to the telescopic rod of the electric push rod (105).

4. The multifunctional protective gastric tube fixation structure according to claim 3, characterized in that, The drive mechanism includes a rotating shaft (111) rotatably connected to the upper part of the mounting plate (1), the rotating shaft (111) slidingly passing through the slide plate (9), the rotating shaft (111) having a spiral groove (116) on the front side, the slide plate (9) having a ball (117) located in the spiral groove (116) connected to it, the rotating shaft (112) rotatably connected to the rear top of the mounting plate (1), the rotating shaft (112) being connected to the rotating shaft (111) via a bevel gear set (113), the top of the mounting bracket (2) being rotatably connected to a spline sleeve (114), the top end of the spline shaft (3) extending into the spline sleeve (114), the spline sleeve (114) being connected to the rotating shaft (112) via a belt drive assembly (115).

5. The multifunctional protective gastric tube fixation structure according to claim 4, characterized in that, The top of the mounting frame (2) is provided with a lifting mechanism for lifting the gastric tube (16). The lifting mechanism includes a slide rail (121) connected to the top of the mounting frame (2). A slotted lifting plate (122) is provided on the slide rail (121). A slotted lifting plate (123) for lifting the gastric tube (16) is connected to the bottom of the slotted lifting plate (122). The slotted lifting plate (123) is located between the electric clamp one (8) and the electric clamp two (10). A pushing component is provided on the front upper side of the mounting frame (2). The pushing component is connected to the spline sleeve (114) for transmission. When the spline sleeve (114) rotates, it drives the pushing component to push the slotted lifting plate (122) to move upward. When the spline sleeve (114) reverses, it drives the pushing component to push the slotted lifting plate (122) to move downward.

6. The multifunctional protective gastric tube fixation structure according to claim 5, characterized in that, The push assembly includes a disc (125) rotatably connected to the upper front side of the mounting bracket (2) via a rotating shaft (124). A lever (126) is connected to the eccentric position of the disc (125). The lever (126) is located in the groove of the slotted lifting plate (122). The spline sleeve (114) is connected to the rotating shaft (124) via a bevel gear set two (127).

7. The multifunctional protective gastric tube fixation structure according to claim 6, characterized in that, The head cover (4) includes an arc-shaped elastic rod (41), a connecting block (42), and earmuffs (43). The arc-shaped elastic rod (41) has two front and two back. Three connecting blocks (42) are evenly spaced along the axial direction between the two arc-shaped elastic rods (41). Two earmuffs (43) for wearing on the patient's ears are connected between the two arc-shaped elastic rods (41). The earmuffs (43) are located below the connecting blocks (42). The earmuffs (43) have ventilation holes (44) for ventilation. The head cover (4) is connected to the bottom end of the spline shaft (3) through the connecting block (42) in the middle.

8. The multifunctional protective gastric tube fixation structure according to claim 7, characterized in that, The clamping member (7) includes two left and right clamping plates (71) that are slidably disposed on the rear side of the mounting plate (1). The rear side of the mounting plate (1) is provided with a bidirectional screw (72) for driving the two clamping plates (71) to move closer to each other and further away from each other.

9. A multifunctional protective gastric tube fixation structure according to claim 8, characterized in that, The headgear (4) is equipped with an adaptive mechanism, which includes two connecting plates (131) respectively hinged to the left and right connecting blocks (42) on the side close to each other. Each of the two connecting plates (131) is hinged to a connecting block (132) on the side close to each other. A rubber pad (133) is connected to the connecting block (132). A torsion spring (134) is connected between the connecting block (132) and the connecting plate (131) connected to it. A torsion spring (2) (135) is connected between the connecting plate (131) and the connecting block (42) connected to it.

10. A multifunctional protective gastric tube fixation structure according to claim 9, characterized in that, A rubber sleeve (14) is connected to the clamping rod (82), and a rubber block (15) is connected to the clamping part of the clamping block (103).

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