Intravenous infusion fixing device for psychiatry nursing

Abstract

The invention belongs to the technical field of medical instruments, and particularly relates to an intravenous infusion fixing device for psychiatry nursing, the intravenous infusion fixing device comprises a round shell, a plurality of clamping assemblies and a first plate, each clamping assembly comprises an air bag, and further comprises a protection assembly and a sensing assembly, the protection assembly comprises a fixing plate, and the fixing plate is installed on the air bag; the first pipe is fixedly mounted on the fixing plate; the second pipe is mounted in the first pipe in a sliding manner; the clamping plate is fixedly mounted at the upper end of the second pipe; the first through hole is formed in the second pipe; a hose; by arranging the protection assembly, when the emotion and behavior of a patient are normal, the arm of the patient is fixed through the air bag, due to the fact that the air bag has flexibility and adaptability, the arm can move in a small range, comfort and smooth blood circulation in the arm are guaranteed, and when the emotion of the patient fluctuates violently, the protection assembly responds rapidly, and the arm is tightly fixed through the clamping plate; the air bag is deflated to effectively prevent the air bag from being broken and ensure the safety of a patient.

Description

Technical Field

[0001] The invention belongs to the field of medical instruments, in particular to an intravenous infusion fixing device for psychiatric nursing. Background Art

[0002] The intravenous infusion fixation device is a medical device, which is particularly important in psychiatric care. This is because psychiatric patients often have unstable emotions and behaviors. During the infusion process, they may struggle, which may cause the infusion needle to fall off or shift easily, affecting the treatment effect and may even cause medical accidents. Therefore, a fixation device is needed to effectively fix the arm during the infusion.

[0003] A patent application with publication number CN114470431A discloses a hand fixing device for infusion of psychiatric patients, comprising: a supporting base plate, and also comprising: a connecting mechanism installed on the supporting base plate; an arm fastening device installed on the supporting base plate; an automatically inflated fastening device installed in the arm fastening device; a palm fastening mechanism installed on the supporting base plate; a finger fastening mechanism installed on the supporting base plate; before infusion, the patient's arm is passed through the arm fastening device, the fingers are inserted into the finger fastening mechanism, the palm is fixed by the palm fastening device, and the entire arm is fixed by the arm fastening device, ensuring that the arm and palm cannot move during the infusion process, thereby restricting the patient's behavior.

[0004] When the patient struggles due to an illness, the above-mentioned device fixes the arm by expanding the airbag in the automatic inflatable fastening device to limit the patient's arm movement. The airbag is inflatable. If the arm needs to be fixed, the pressure in the airbag needs to reach a certain value. However, if the patient's struggle is more intense and continuous, there is a risk of the airbag being ruptured by the shaking of the arm, affecting the patient's safety.

[0005] To this end, the present invention provides an intravenous infusion fixing device for psychiatric nursing. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, the problems of potential safety hazards in airbag fixation and accidental touching of the sensing component by the patient when the patient is not ill, as mentioned in the background art, are solved.

[0007] The technical solution adopted by the present invention to solve its technical problems is: the intravenous infusion fixing device for psychiatric nursing described in the present invention includes a round shell, a plurality of clamping components for fixing arms and a No. 1 plate for fixing fingers, the clamping component includes an airbag, and is characterized in that it also includes a plurality of protective components and sensing components for preventing the airbag from bursting, the sensing component is used to sense the patient's behavior, and the protective component can be triggered to start when the patient's struggle is sensed, the protective component includes a fixing plate, the fixing plate is installed on the airbag, a No. 1 tube and a hose are installed on the fixing plate, a No. 2 tube is slidably installed in the No. 1 tube, a splint is installed on the No. 2 tube, the No. 1 tube and the No. 2 tube are both located inside the airbag, a No. 1 through hole is provided on the No. 2 tube, after the No. 2 tube slides relative to the No. 1 tube, the air in the airbag enters the fixing plate from the No. 1 through hole and is discharged from the hose.

[0008] Preferably, the sensing component includes: a No. 3 tube, which is rotatably mounted on the fixed plate and is threadedly connected to the No. 2 tube; a No. 1 ratchet, which is slidably mounted on the No. 3 tube, and a No. 1 torsion spring is installed between the No. 1 ratchet and the fixed plate; a No. 1 abutment plate, which is mounted on the fixed plate and is used to limit the rotation of the No. 1 ratchet; a No. 4 tube, which passes through the No. 3 tube, is slidably connected to the fixed plate, and is used to push the No. 1 ratchet to slide relative to the No. 3 tube; and a contact plate, which is slidably mounted on the clamping plate and is used to push the No. 4 tube to slide.

[0009] Preferably, a No. 2 butt plate is slidably mounted on the No. 1 butt plate, and the No. 2 butt plate is used to limit the one-way rotation of the No. 1 ratchet wheel. After the No. 1 ratchet wheel slides downward relative to the No. 3 pipe, it does not contact the No. 1 butt plate.

[0010] Preferably, the sensing component also includes: a No. 1 trapezoidal block, which is slidably mounted on the clamping plate, the No. 1 trapezoidal block is fixedly connected to the contact plate, and the contact plate is slidably connected to the clamping plate through the No. 1 trapezoidal block; a No. 2 trapezoidal block, which contains two No. 2 trapezoidal blocks and is slidably connected to the clamping plate, the No. 2 trapezoidal block is vertically arranged to the No. 1 trapezoidal block, and one of the No. 2 trapezoidal blocks is in contact with the inclined surface of the No. 1 trapezoidal block, and a No. 2 spring is installed between the No. 2 trapezoidal block and the clamping plate; a No. 3 trapezoidal block, which is slidably connected to the clamping plate, located between the two No. 2 trapezoidal blocks, and the inclined surface is in contact with the other No. 2 trapezoidal block.

[0011] Preferably, the protection assembly further comprises a screw rod, which is rotatably mounted on the round shell and is threadedly connected to the fixing plate.

[0012] Preferably, a circular ring is provided in the middle of the circular shell, and a cavity is formed between the interior of the circular shell and the outer periphery of the circular ring. The clamping assembly also includes two rotating rods, which are rotatably mounted on the circular ring. The rotating rods clamp the airbag in the middle, and the airbag is divided into two parts. The part of the airbag close to the center of the circular shell is used for inflation and clamping, and this part extends out of the cavity and is located inside the circular ring, and the other part of the airbag is located inside the cavity.

[0013] Preferably, the device further comprises: an annular plate, the annular plates comprising two and fixedly connected, the two annular plates being rotatably mounted on both sides of the circular ring and the circular shell respectively; a cover plate, the cover plate being fixedly connected to the circular ring, and the cover plate being rotatably connected to the annular plate; a partition plate, the partition plates comprising a plurality of, the two ends of the partition plates being fixedly connected to the circular ring and the circular shell respectively, the partition plates dividing the cavity into a plurality of small spaces, each of which contains a clamping assembly; an arc plate, the arc plate comprising a plurality of A No. 3 spring is installed between every two arc plates, the arc plate is rotatably installed on the circular ring, and the arc plate is used to close the part of the circular ring through which the airbag extends; an air outlet and an air inlet, the air outlet and the air inlet are respectively installed on the two annular plates, and the air outlet and the air inlet are connected with different small spaces; a No. 2 through hole, the No. 2 through hole is opened on the No. 4 tube and the splint, the No. 4 tube and the No. 1 ratchet adopt a hollow structure, which is connected with the No. 2 through hole.

[0014] Preferably, the clamping assembly also includes: a No. 1 gear, which includes two No. 1 gears and are respectively mounted on the two rotating rods, and the two No. 1 gears are meshed and connected; a fan blade, which is rotatably mounted on the circular ring, and the fan blade is located within the rotation range of the air inlet; a No. 2 ratchet, which is fixedly mounted on the periphery of the fan blade; a No. 3 ratchet, which is fixedly mounted on one of the rotating rods and meshed and connected with the No. 2 ratchet; a No. 4 spring, which is mounted between the circular ring and the fan blade; a No. 3 support plate, which adopts a telescopic structure and is slidably mounted on the circular ring, and the No. 3 support plate is used to limit the unidirectional rotation of the No. 2 ratchet, and a No. 5 spring is installed between the No. 3 support plate and the circular ring; a concave hole, which is opened in the annular plate, and the No. 3 support plate is located within the moving range of the concave hole.

[0015] Preferably, the fan blades are slidably mounted on the circular ring, and a switch No. 1 and a switch No. 2 are mounted on the circular ring, wherein the switch No. 1 is located within the moving range of the fan blades, and the switch No. 1 controls the rotation of the screw rod after being triggered by the fan blades, and the switch No. 2 controls the reverse rotation of the screw rod after being triggered by the No. 3 stop plate.

[0016] Preferably, a telescopic rod is installed on the No. 1 support plate, a push plate is slidably installed on the fixed plate, the push plate is used to push the No. 1 ratchet to slide, and a No. 2 gear is rotatably installed on the fixed plate. The No. 1 support plate and the push plate are located on both sides of the No. 2 gear and are both meshed and connected with the No. 2 gear.

[0017] The beneficial effects of the present invention are as follows: 1. The intravenous infusion fixation device for psychiatric nursing described in the present invention, by setting a protective component, can fix the patient's arm through the airbag when the patient's mood and behavior are normal. Since the airbag is soft and adaptable, the arm can move slightly to ensure comfort and smooth blood circulation in the arm, avoiding numbness or injury caused by long-term fixation. When the patient's mood fluctuates violently, the protective component responds quickly, the splint tightly fixes the arm, and the airbag deflates, effectively preventing the airbag from rupturing, while ensuring the patient's safety.

[0018] 2. The intravenous infusion fixing device for psychiatric nursing described in the present invention can automatically trigger the protection component to start when the patient struggles by setting a sensing component, and cooperate with the No. 2 trapezoidal block and the No. 1 trapezoidal block to avoid the situation where the sensing component is triggered by the shaking of the patient's arm when the patient is not ill.

[0019] 3. The intravenous infusion fixing device for psychiatric nursing described in the present invention is provided with multiple groups of clamping components and annular plates. The annular plates rotate intermittently, so that the clamping components cyclically loosen and clamp the arm, thereby avoiding the problem of poor blood circulation due to the skin of the arm being compressed by the airbag for a long time. In combination with the rotating rod, the clamping components can adapt to arms of different thicknesses while ensuring the service life, and are more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below in conjunction with the accompanying drawings.

[0021] Figure 1 is a three-dimensional diagram of the first embodiment of the present invention; Figure 2 It is a left side view of the cover plate of the present invention; Figure 3 is a rear view of the annular plate of the present invention; Figure 4 is a rear view of the air inlet of the present invention; Figure 5 It is a left side view of the hose of the present invention; Figure 6 is a left side cross-sectional view of the ring and the air bag of the present invention; Figure 7 It is a schematic diagram of the structure of the No. 1 pipe and the No. 2 pipe of the present invention; Figure 8 is a cross-sectional view of a fixing plate of the present invention; Fig. 9 is a bottom view of ratchet wheel No. 1 of the present invention; Fig.10 It is a left side view of the rotating rod of the present invention; In the figure: 1, round shell; 2, clamping assembly; 21, airbag; 22, rotating rod; 23, gear No. 1; 24, fan blade; 25, ratchet No. 2; 26, ratchet No. 3; 27, spring No. 4; 28, stop plate No. 3; 29, spring No. 5; 210, concave hole; 3, protective assembly; 31, fixing plate; 32, pipe No. 1; 33, pipe No. 2; 34, clamping plate; 35, through hole No. 1; 36, hose; 37, screw rod; 4, induction assembly; 41, pipe No. 3; 42, ratchet No. 1; 43, stop plate No. 1 ; 44. Torsion spring No. 1; 45. Tube No. 4; 46. Contact plate; 47. Plate No. 2; 48. Spring No. 1; 49. Trapezoidal block No. 1; 410. Trapezoidal block No. 2; 411. Spring No. 2; 412. Trapezoidal block No. 3; 5. Circular ring; 6. Annular plate; 7. Cover plate; 8. Partition plate; 9. Arc plate; 10. Spring No. 3; 11. Air outlet; 12. Air inlet; 13. Through hole No. 2; 14. Switch No. 1; 15. Switch No. 2; 16. Telescopic rod; 17. Push plate; 18. Gear No. 2. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0023] like Figure 1-Figure 10 As shown, the intravenous infusion fixing device for psychiatric nursing in an embodiment of the present invention comprises a round shell 1, a plurality of clamping components 2 for fixing arms and a No. 1 plate for fixing fingers, the clamping component 2 comprises an airbag 21, and is characterized in that it also comprises a plurality of protective components 3 and a sensing component 4 for preventing the airbag 21 from bursting, the sensing component 4 being used to sense the patient's behavior, and triggering the protective component 3 to start when sensing the patient's struggle, the protective component 3 comprising a fixing plate 31, the fixing plate 31 being mounted on the airbag 21, a No. 1 tube 32 and a hose 36 being mounted on the fixing plate 31, a No. 2 tube 33 being slidably mounted in the No. 1 tube 32, a splint 34 being mounted on the No. 2 tube 33, the No. 1 tube 32 and the No. 2 tube 33 being both located inside the airbag 21, a No. 1 through hole 35 being provided on the No. 2 tube, after the No. 2 tube 33 slides relative to the No. 1 tube 32, the air in the airbag 21 enters the fixing plate 31 from the No. 1 through hole 35, and is discharged from the hose 36.

[0024] Specifically, when the patient struggles due to illness, the existing device fixes the arm through the airbag 21 in the clamping assembly 2 to limit the patient's arm movement. The airbag 21 is inflatable. If the arm needs to be fixed, the pressure in the airbag 21 needs to reach a certain value. However, if the patient's struggle is intense and continuous, there is a risk that the airbag 21 will be ruptured by the shaking of the arm, affecting the patient's safety. The No. 2 tube 33 and the fixing plate 31 adopt a hollow structure, and the No. 2 tube 33 and the fixing plate 31 are connected. In the initial state, the No. 2 tube 33 is located inside the No. 1 tube 32. The device needs to be used in conjunction with a chair. Before infusion, the device is fixed on the chair. After the patient sits on the chair, the arm passes through the round shell 1 and the palm is placed on the No. 1 plate. Then the airbag 21 is inflated to a suitable pressure to ensure that the arm cannot shake too much, that is, the patient's arm is fixed. Then the patient can be infused and other operations can be performed. When the patient struggles, the arm squeezes the airbag 21, and the sensing component 4 (a pressure sensor can be used) senses that the pressure in the airbag 21 increases. After that, the control protection component 3 is started, that is, the second tube 33 is controlled to slide, and the second tube 33 extends out of the first tube 32. The sliding of the second tube 33 drives the splint 34 to move synchronously in the direction close to the arm until the splint 34 is close to the arm to fix the arm. After the second tube 33 extends out of the first tube 32, the first through hole 35 is connected with the airbag 21, so that the air in the airbag 21 is discharged from the hose 36, so that the airbag 21 is gradually deflated to prevent the airbag 21 from rupturing due to excessive pressure. At the same time, the close fixation of the splint 34 effectively restricts the movement of the arm. When the patient's mood stabilizes, the airbag 21 is re-inflated, the control protection component 3 is reset, and the second tube 33 is retracted into the first tube 32 to restore the initial state. By setting up the protection component 3, when the patient's emotions and behaviors are normal, the airbag 21 can be used to fix the patient's arm. Since the airbag 21 is soft and adaptable, the arm can move slightly to ensure comfort and smooth blood circulation in the arm, avoiding numbness or injury caused by long-term fixation. When the patient's emotions fluctuate violently, the protection component 3 responds quickly, the splint 34 tightly fixes the arm, and the airbag 21 deflates, effectively preventing the airbag 21 from rupturing, while ensuring the safety of the patient.

[0025] like Figure 5 , Figure 7 and Figure 8As shown, the sensing component 4 includes: a No. 3 tube 41, which is rotatably mounted on the fixed plate 31, and the No. 3 tube 41 is threadedly connected to the No. 2 tube 33; a No. 1 ratchet 42, which is slidably mounted on the No. 3 tube 41, and a No. 1 torsion spring 44 is installed between the No. 1 ratchet 42 and the fixed plate 31; a No. 1 abutment plate 43, which is mounted on the fixed plate 31, and is used to limit the rotation of the No. 1 ratchet 42; a No. 4 tube 45, which passes through the No. 3 tube 41, and is slidably connected to the fixed plate 31, and is used to push the No. 1 ratchet 42 to slide relative to the No. 3 tube 41; a contact plate 46, which is slidably mounted on the clamping plate 34, and is used to push the No. 4 tube 45 to slide.

[0026] Specifically, in the initial state, the No. 1 ratchet 42 is in contact with the No. 1 abutment plate 43, and the No. 1 torsion spring 44 is in a torsion state; when the patient struggles, the patient's arm shakes, which will push the contact plate 46 to slide in the direction close to the splint 34, and the sliding of the contact plate 46 pushes the No. 4 tube 45 to slide, and the sliding of the No. 4 tube 45 pushes the No. 1 ratchet 42 to move away from the center of the circular shell 1 until the No. 1 ratchet 42 is no longer in contact with the No. 1 abutment plate 43. At this time, the No. 1 ratchet 42 rotates under the action of the elastic force of the No. 1 torsion spring 44, and the rotation of the No. 1 ratchet 42 drives the No. 3 tube 41 to rotate. Since the No. 3 tube 41 is threadedly connected to the No. 2 tube 33, the No. 2 tube 33 drives the splint 34 to slide in the direction of the arm until the splint 34 clamps the arm; by setting the sensing component 4, the protection component 3 can be automatically triggered to start when the patient struggles, which is convenient to use.

[0027] like Fig. 9 As shown, a second butt plate 47 is slidably mounted on the first butt plate 43 , and the second butt plate 47 is used to limit the one-way rotation of the first ratchet 42 . After the first ratchet 42 slides downward relative to the third pipe 41 , it does not contact the first butt plate 43 .

[0028] Specifically, a spring 48 is installed between the second plate 47 and the first plate 43 to ensure that the second plate 47 is engaged with the first ratchet 42. The first ratchet 42 can only rotate counterclockwise (in Fig. 9 Taking the bottom-up perspective as an example), when the No. 1 ratchet 42 is pushed by the No. 4 tube 45 and slides relative to the No. 3 tube 41 until it is no longer in contact with the No. 1 butt plate 43, the No. 2 butt plate 47 is still in contact with the No. 1 ratchet 42. At this time, the No. 1 ratchet 42 can rotate counterclockwise under the action of the elastic force of the No. 1 torsion spring 44. After the splint 34 clamps the arm, that is, the No. 2 tube 33 extends relative to the No. 1 tube 32, the No. 1 ratchet 42 is restricted by the No. 2 butt plate 47, and the No. 1 ratchet 42 and the No. 3 tube 41 cannot rotate clockwise, that is, the No. 2 tube 33 and the splint 34 cannot slide in the direction close to the No. 1 tube 32, that is, the splint 34 remains in the clamped state and cannot be reversed.

[0029] like Figure 7 and Figure 8 As shown, the sensing component 4 also includes: a No. 1 trapezoidal block 49, which is slidably mounted on the clamping plate 34, and the No. 1 trapezoidal block 49 is fixedly connected to the contact plate 46, and the contact plate 46 is slidably connected to the clamping plate 34 through the No. 1 trapezoidal block 49; a No. 2 trapezoidal block 410, which includes two No. 2 trapezoidal blocks 410 and is slidably connected to the clamping plate 34, the No. 2 trapezoidal block 410 is vertically arranged with the No. 1 trapezoidal block 49, and one of the No. 2 trapezoidal blocks 410 is in contact with the inclined surface of the No. 1 trapezoidal block 49, and a No. 2 spring 411 is installed between the No. 2 trapezoidal block 410 and the clamping plate 34; a No. 3 trapezoidal block 412, which is slidably connected to the clamping plate 34, is located between the two No. 2 trapezoidal blocks 410, and the inclined surface is in contact with the other No. 2 trapezoidal block 410.

[0030] Specifically, the patient's arm shakes during the infusion process, not because of the disease, and the sensor component 4 is triggered at this time, which is an accidental touch; Figure 8 Taking the perspective of as an example, when the arm shakes once, the arm pushes the contact plate 46 and the No. 1 trapezoidal block 49 to slide downward, the No. 1 trapezoidal block 49 moves downward, and pushes the upper No. 2 trapezoidal block 410 to slide to the right. At this time, the No. 2 spring 411 is compressed. When the arm is no longer in contact with the contact plate 46, the upper No. 2 trapezoidal block 410 returns to its original position under the action of the elastic force of the No. 2 spring 411, and the No. 1 trapezoidal block 49 and the contact block recover synchronously. If the patient is ill, the arm will shake multiple times and continue. The contact plate 46 and the No. 1 trapezoidal block 49 are hit, and after the upper No. 2 trapezoidal block 410 slides to the right, the No. 1 trapezoidal block 49 continues to move downward to push the No. 3 trapezoidal block 412 to move downward, so that the other No. 2 trapezoidal block 410 moves until it contacts the No. 4 tube 45 and pushes the No. 4 tube 45 to move downward until the No. 2 tube 33 extends out and the clamp 34 clamps the arm; by setting the No. 2 trapezoidal block 410 and the No. 1 trapezoidal block 49, the occurrence of accidental touch of the sensing component 4 can be avoided.

[0031] like Figure 4-Figure 7 As shown, the protection assembly 3 also includes a screw rod 37 , which is rotatably mounted on the round shell 1 and is threadedly connected to the fixing plate 31 .

[0032] Specifically, in the process of fixing the arm, the screw rod 37 is controlled to rotate, driving the fixing plate 31 to move toward the arm. The movement of the fixing plate 31 drives the sensing component 4 and the protective component 3 to move synchronously, so that the distance between the sensing component 4 and the protective component 3 and arms of different thicknesses is the same, so as to avoid the problem that the clamping plate 34 of the protective component 3 is not clamped tightly or is over-clamped.

[0033] like Figure 2 , Figure 4 and Figure 5As shown, a circular ring 5 is arranged in the middle of the circular shell 1, and a cavity is formed between the interior of the circular shell 1 and the periphery of the circular ring 5. The clamping assembly 2 also includes two rotating rods 22, which are rotatably mounted on the circular ring 5. The rotating rods 22 clamp the airbag 21 in the middle. The airbag 21 is divided into two parts. The part of the airbag 21 close to the center of the circular shell 1 is used for inflation and clamping, and this part extends out of the cavity and is located inside the circular ring 5. The other part of the airbag 21 is located inside the cavity.

[0034] Specifically, the volume of the airbag 21 of the existing device remains unchanged. If a non-retractable material is used, the clamping effect on arms of different thicknesses will be different. If a retractable material is used, the airbag 21 will be in a retracted state for a long time, which is easy to deform or even rupture, and has a short service life. In the process of the airbag 21 clamping the arm, air is inflated into the airbag 21, and the rotation of the rotating rod 22 is controlled at the same time. The rotation of the rotating rod 22 pushes the airbag 21 in the cavity part out of the cavity, so that the part of the airbag 21 clamping the arm is increased. By setting the rotating rod 22, the clamping component 2 can adapt to arms of different thicknesses while ensuring the service life, and is more practical.

[0035] like Figure 2 , Figure 3 , Figure 4 , Figure 7 and Figure 8 As shown, the device also includes: an annular plate 6, which includes two annular plates 6 and are fixedly connected. The two annular plates 6 are rotatably mounted on both sides of the ring 5 and the round shell 1 respectively; a cover plate 7, which is fixedly connected to the ring 5, and the cover plate 7 is rotatably connected to the annular plate 6; a partition plate 8, which includes a plurality of partition plates 8, and the two ends of the partition plates 8 are respectively fixedly connected to the ring 5 and the round shell 1, and the partition plates 8 divide the cavity into a plurality of small spaces, each of which contains a clamping assembly 2; an arc plate 9, which includes a plurality of arc plates, and each of which has two arc plates. A No. 3 spring 10 is installed between the plates 9. The arc plate 9 is rotatably installed on the ring 5. The arc plate 9 is used to close the part of the ring 5 from which the air bag 21 extends; the air outlet 11 and the air inlet 12, the air outlet 11 and the air inlet 12 are respectively installed on the two annular plates 6, and the air outlet 11 and the air inlet 12 are connected to different small spaces; the No. 2 through hole 13, the No. 2 through hole 13 is opened on the No. 4 tube 45 and the splint 34, the No. 4 tube 45 and the No. 1 ratchet 42 adopt a hollow structure, which is connected to the No. 2 through hole 13.

[0036] Specifically, the arc plate 9 and the third spring 10 are used to clamp the airbag 21 and cover the portion of the annular plate 6 from which the airbag 21 extends to ensure that the gas does not flow out from there. The air pressure in the airbag 21 is constant. The air outlet holes 11 and the air inlet holes 12 contain two groups and are symmetrically distributed on the annular plate 6. The small spaces connected are adjacent. The side where the first plate is located is the front side. The annular plate 6 containing the air outlet holes 11 is located on the front side, and the cover plate 7 on this side is provided with air holes for gas to flow out. The discharged gas flows to the palm. The cover plate 7 on the rear side can be connected to the gas delivery device, and the output gas enters from the air inlet holes 12 of the rear annular plate 6 into the front side. In a small space, the gas passes through the No. 4 tube 45 and the ratchet, and enters into the interior of the airbag 21 from the No. 2 through hole 13, causing the airbag 21 to swell, that is, the group of clamping components 2 fixes the arm. At this time, in the adjacent small space connected to the air outlet 11, the gas in the airbag 21 enters into the No. 4 tube 45 and the ratchet from the No. 2 through hole 13, and is discharged from the small space from the air outlet 11, and the airbag 21 is deflated, that is, the group of clamping components 2 releases the arm, and the annular plate 6 is controlled to rotate intermittently, so that the clamping component 2 cyclically loosens and clamps the arm, thereby avoiding the problem of poor blood circulation due to the skin of the arm being compressed by the airbag 21 for a long time.

[0037] like Figure 4 , Figure 6 and Fig.10 As shown, the clamping assembly 2 also includes: a No. 1 gear 23, which includes two No. 1 gears 23 and are respectively mounted on two rotating rods 22, and the two No. 1 gears 23 are meshed and connected; a fan blade 24, which is rotatably mounted on the ring 5, and the fan blade 24 is located within the rotation range of the air inlet 12; a No. 2 ratchet 25, which is fixedly mounted on the periphery of the fan blade 24; a No. 3 ratchet 26, which is fixedly mounted on one of the rotating rods 22 and meshed and connected with the No. 2 ratchet 25; a No. 4 spring 27, which is mounted between the ring 5 and the fan blade 24; a No. 3 abutment plate 28, which adopts a telescopic structure and is slidably mounted on the ring 5, and the No. 3 abutment plate 28 is used to limit the unidirectional rotation of the No. 2 ratchet 25, and a No. 5 spring 29 is installed between the No. 3 abutment plate 28 and the ring 5; a recess 210, which is opened on the annular plate 6, and the No. 3 abutment plate 28 is located within the moving range of the recess 210.

[0038] Specifically, the position of the concave hole 210 corresponds to the position range of the air outlet 11. In the initial state, the third plate 28 contacts the second ratchet 25, and the third plate 28 restricts the second ratchet 25 to rotate only counterclockwise (in Fig.10Taking the perspective from front to back as an example), the No. 5 spring 29 is in a compressed state, and the gas enters the small space from the air inlet 12. The fan blade 24 is blown by the incoming airflow to rotate, and the rotation of the fan blade 24 drives the No. 2 ratchet 25 to rotate synchronously counterclockwise. At this time, the No. 4 spring 27 is twisted, and the rotation of the No. 2 ratchet 25 drives the No. 3 ratchet 26 to rotate clockwise. The rotation of the No. 3 ratchet 26 drives the right-side rotating rod 22 and the No. 1 gear 23 to rotate synchronously. Since the two No. 1 gears 23 are meshed and connected, the left-side rotating rod 22 rotates counterclockwise. The rotation of the two rotating rods 22 pushes the lower part of the airbag 21 to move upward, and at the same time, the screw 37 rotates, driving the fixing plate 31 and the clamping plate 32. Component 2 and sensing component 4 move toward the direction approaching the arm, and when the air outlet 11 rotates to be connected with the small space, the recess 210 rotates to within the moving range of the No. 3 abutment plate 28, and the No. 3 abutment plate 28 moves backward under the elastic force of the No. 3 spring 10 until the No. 3 abutment plate 28 is no longer in contact with the No. 2 ratchet 25. At this time, the No. 2 ratchet 25 rotates under the elastic force of the No. 4 spring 27, driving the rotating rod 22 to rotate, so that the deflated airbag 21 is pulled into the small space, and at the same time, the screw rod 37 is controlled to rotate, driving the fixing plate 31, the protective component 3 and the sensing component 4 to move away from the arm, i.e., the airbag 21, the protective component 3 and the sensing component 4 are retracted.

[0039] like Fig.10 As shown, the fan blade 24 is slidably installed with the ring 5, and the ring 5 is installed with a switch No. 14 and a switch No. 2 15. The switch No. 14 is located within the moving range of the fan blade 24. After the switch No. 14 is triggered by the fan blade 24, the control screw rod 37 rotates. After the switch No. 2 15 is triggered by the stop plate No. 3 28, the control screw rod 37 rotates in the opposite direction.

[0040] Specifically, the fan blade 24 is blown by the airflow and moves forward, and the No. 4 spring 27 is compressed and contacts the No. 1 switch 14 during the movement. After the No. 1 switch 14 is triggered, the control screw 37 rotates, driving the clamping plate 34, the clamping assembly 2 and the sensing assembly 4 to move in the direction close to the arm. When the airbag 21 is filled with gas, the airbag 21 fixes the arm, and the air supply to the small space is stopped. At this time, the fan blade 24 returns to its original position under the action of the elastic force of the No. 4 spring 27, and the No. 1 switch 14 is no longer triggered, causing the screw 37 to stop rotating. When the small space is connected to the air outlet 11, when the No. 3 support plate 28 moves backward, the No. 3 support plate 28 contacts the No. 2 switch 15, and the No. 2 switch 15 is triggered, controlling the screw 37 to rotate in the opposite direction, driving the fixing plate 31, the clamping assembly 2 and the sensing assembly 4 to move in the direction away from the arm.

[0041] like Figure 8 and Fig. 9As shown, a telescopic rod 16 is installed on the No. 1 support plate 43, a push plate 17 is slidably installed on the fixed plate 31, and the push plate 17 is used to push the No. 1 ratchet 42 to slide. A No. 2 gear 18 is rotatably installed on the fixed plate 31. The No. 1 support plate 43 and the push plate 17 are located on both sides of the No. 2 gear 18 and are both meshed and connected with the No. 2 gear 18.

[0042] Specifically, after the protection component 3 is started, the doctor treats the patient. When the patient calms down, the telescopic rod 16 is controlled to retract, driving the No. 1 push plate 43 to not contact the No. 1 ratchet 42. During the sliding process of the No. 1 push plate 43, the No. 2 gear 18 can be driven to rotate. The rotation of the No. 2 gear 18 drives the push plate 17 to move in the direction close to the No. 1 ratchet 42, so as to push the No. 1 ratchet 42 upward to its original state through the inclined surface of the push plate 17, and then pushes the splint 34 to move in the direction away from the arm. The movement of the splint 34 drives the No. 2 tube 33 to slide into the No. 1 tube 32. The sliding of the No. 2 tube 33 drives the No. 3 tube 41 to rotate. The rotation of the No. 3 tube 41 causes the No. 1 ratchet 42 to rotate. The rotation of the No. 1 ratchet 42 causes the No. 1 torsion spring 44 to twist. At this time, the telescopic rod 16 is controlled to extend, driving the No. 1 push plate 43 to move, until the No. 1 push plate 43 contacts the No. 1 ratchet 42, and the rotation of the No. 1 ratchet 42 is restricted, that is, the action of resetting the protection component 3 and the sensing component 4 is realized.

[0043] Working steps: Step 1: The device needs to be used in conjunction with a chair. Before infusion, the device is fixed on the chair. After the patient sits on the chair, the patient passes the arm through the round shell 1, places the palm on the No. 1 plate, connects the rear cover plate 7 with the gas delivery device, and blocks the air holes of the front cover plate 7. The output gas first enters one of the small spaces from the air inlet hole 12 of the rear annular plate 6. The gas passes through the No. 4 tube 45 and the ratchet and enters the interior of the airbag 21 from the No. 2 through hole 13, causing the airbag 21 to swell. The annular plate 6 is controlled to rotate one circle until each airbag 21 is swollen, thus achieving the action of fixing the arm by the clamping component 2, and then the patient can be infused. Step 2, release the air hole of the front cover plate 7, and in the small space connected to the air hole, the gas in the airbag 21 enters the No. 4 tube 45 and the ratchet from the No. 2 through hole 13, and is discharged from the small space from the air outlet 11, and the airbag 21 is deflated, that is, the group of clamping components 2 releases the arm. After a period of time, the arc plate 9 is controlled to rotate, and the air inlet 12 is connected to the space. The gas passes through the No. 4 tube 45 and the ratchet and enters the inside of the airbag 21 from the No. 2 through hole 13, so that the airbag 21 swells again, that is, the group of clamping components 2 fixes the arm again, and the arc plate 9 is controlled to rotate intermittently, so that the clamping component 2 cyclically loosens and clamps the arm, thereby avoiding the problem of poor blood circulation caused by the pressure of the airbag 21 on the skin of the arm for a long time; Step 3, when the patient struggles, the patient's arm shakes, which will push the contact plate 46 to slide in the direction close to the splint 34, and the sliding of the contact plate 46 pushes the No. 4 tube 45 to slide, and the sliding of the No. 4 tube 45 pushes the No. 1 ratchet 42 to move in the direction away from the center of the round shell 1, until the No. 1 ratchet 42 is no longer in contact with the No. 1 plate 43, at this time, the No. 1 ratchet 42 rotates under the elastic force of the No. 1 torsion spring 44, and the rotation of the No. 1 ratchet 42 drives the No. 3 tube 41 to rotate. Since the No. 3 tube 41 is threadedly connected to the No. 2 tube 33, the No. 2 tube 33 drives the splint 34 to slide in the direction of the arm, until the splint 34 clamps the arm, and the No. 2 tube 33 extends out of the No. 1 tube 32, the No. 1 through hole 35 is connected with the airbag 21, so that the air in the airbag 21 is discharged from the hose 36, so that the airbag 21 gradually collapses to prevent the airbag 21 from rupturing due to excessive pressure. At the same time, the close fixation of the splint 34 effectively limits the movement of the arm; The second gear 18 rotates and drives the push plate 17 to move in the direction close to the first ratchet 42, so as to push the first ratchet 42 upward to its original state through the inclined surface of the push plate 17, and then pushes the splint 34 to move in the direction away from the arm. The movement of the splint 34 drives the second tube 33 to slide into the first tube 32, and the sliding of the second tube 33 drives the third tube 41 to rotate. The rotation of the third tube 41 causes the first ratchet 42 to rotate, and the rotation of the first ratchet 42 causes the first torsion spring 44 to twist. At this time, the telescopic rod 16 is controlled to extend, driving the first plate 43 to move, until the first plate 43 contacts the first ratchet 42, and the rotation of the first ratchet 42 is restricted, thus realizing the action of resetting the protection component 3 and the sensing component 4. Step 5. When the infusion is finished, the cover plate 7 is no longer connected to the gas delivery device, and the arc plate 9 is controlled to rotate one circle. During the rotation, the air outlet 11 is connected with each small space in turn, so the airbags 21 of the clamping component 2 in the small space are deflated in turn until all the airbags 21 are deflated, that is, the clamping component 2 releases the arm, and then the arm can be taken out of the round shell 1.

[0044] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An intravenous infusion fixation device for psychiatric nursing, comprising a round shell (1), a plurality of clamping components (2) for fixing arms, and a No. 1 plate for fixing fingers, wherein the clamping components (2) include an air bag (21), and characterized in that: The invention also comprises a plurality of protective components (3) and sensing components (4) for preventing the airbag (21) from bursting. The sensing component (4) is used to sense the patient's behavior. When the patient's struggle is sensed, the protective component (3) can be triggered to start. The protective component (3) comprises a fixing plate (31). The fixing plate (31) is mounted on the airbag (21). A first tube (32) and a hose (36) are mounted on the fixing plate (31). A second tube (33) is slidably mounted inside the first tube (32). A clamp (34) is mounted on the second tube (33). Both the first tube (32) and the second tube (33) are located inside the airbag (21). A first through hole (35) is provided on the second tube. After the second tube (33) slides relative to the first tube (32), the air in the airbag (21) enters the fixing plate (31) from the first through hole (35) and is discharged from the hose (36).

2. The intravenous infusion fixing device for psychiatric nursing according to claim 1, characterized in that: The sensing component (4) comprises: A third pipe (41), the third pipe (41) being rotatably mounted on the fixed plate (31), the third pipe (41) being threadedly connected to the second pipe (33); A first ratchet wheel (42), the first ratchet wheel (42) being slidably mounted on the third tube (41) up and down, and a first torsion spring (44) being mounted between the first ratchet wheel (42) and the fixing plate (31); A first abutment plate (43), the first abutment plate (43) being mounted on the fixing plate (31), the first abutment plate (43) being used to limit the rotation of the first ratchet wheel (42); A fourth pipe (45), the fourth pipe (45) passing through the third pipe (41), the fourth pipe (45) being slidably connected to the fixing plate (31); A contact plate (46), wherein the contact plate (46) is slidably mounted on the clamping plate (34), and the contact plate (46) is used to push the fourth tube (45) to slide.

3. The intravenous infusion fixing device for psychiatric nursing according to claim 2, characterized in that: A second abutment plate (47) is slidably mounted on the first abutment plate (43). The second abutment plate (47) is used to limit the one-way rotation of the first ratchet wheel (42). After the first ratchet wheel (42) slides downward relative to the third pipe (41), it does not contact the first abutment plate (43).

4. The intravenous infusion fixing device for psychiatric nursing according to claim 3, characterized in that: The sensing component (4) further comprises: A number one trapezoidal block (49), the number one trapezoidal block (49) being slidably mounted on the clamping plate (34), the number one trapezoidal block (49) being fixedly connected to the contact plate (46), and the contact plate (46) being slidably connected to the clamping plate (34) via the number one trapezoidal block (49); No. 2 trapezoidal blocks (410), the No. 2 trapezoidal blocks (410) comprising two and slidably connected to the clamping plate (34), the No. 2 trapezoidal blocks (410) being arranged vertically to the No. 1 trapezoidal block (49), and one of the No. 2 trapezoidal blocks (410) being in contact with the inclined surface of the No. 1 trapezoidal block (49), and a No. 2 spring (411) being installed between the No. 2 trapezoidal block (410) and the clamping plate (34); A third trapezoidal block (412), the third trapezoidal block (412) is slidably connected to the clamping plate (34), is located between the two second trapezoidal blocks (410), and has an inclined surface in contact with another of the second trapezoidal blocks (410).

5. The intravenous infusion fixing device for psychiatric nursing according to claim 2, characterized in that: The protection assembly (3) further comprises a screw rod (37), wherein the screw rod (37) is rotatably mounted on the round shell (1), and the screw rod (37) is threadedly connected to the fixing plate (31).

6. The intravenous infusion fixing device for psychiatric nursing according to claim 5, characterized in that: A circular ring (5) is arranged in the middle of the circular shell (1), and a cavity is formed between the interior of the circular shell (1) and the periphery of the circular ring (5). The clamping assembly (2) further comprises two rotating rods (22), and the rotating rods (22) are rotatably mounted on the circular ring (5). The rotating rods (22) clamp the airbag (21) in the middle. The airbag (21) is divided into two parts. The part of the airbag (21) close to the center of the circular shell (1) is used for inflation and clamping, and this part extends out of the cavity and is located inside the circular ring (5). The other part of the airbag (21) is located inside the cavity.

7. The intravenous infusion fixing device for psychiatric nursing according to claim 6, characterized in that: The device also includes: an annular plate (6), the annular plates (6) comprising two and fixedly connected, the two annular plates (6) being rotatably mounted on both sides of the circular ring (5) and the circular shell (1) respectively; A cover plate (7), the cover plate (7) being fixedly connected to the circular ring (5), and the cover plate (7) being rotatably connected to the annular plate (6), and a No. 1 plate being mounted on one of the cover plates; A partition (8), wherein the partition (8) comprises a plurality of partitions, and the two ends of the partition (8) are respectively fixedly connected to the circular ring (5) and the circular shell (1), and the partition (8) divides the cavity into a plurality of small spaces, each of which contains a clamping assembly (2); A curved plate (9), wherein the curved plates (9) include a plurality of curved plates (9), a No. 3 spring (10) is installed between every two curved plates (9), the curved plate (9) is rotatably installed on the circular ring (5), and the curved plate (9) is used to close the portion of the circular ring (5) from which the airbag (21) extends; An air outlet hole (11) and an air inlet hole (12), wherein the air outlet hole (11) and the air inlet hole (12) are respectively mounted on the two annular plates (6), and the air outlet hole (11) and the air inlet hole (12) are connected to different small spaces; A No. 2 through hole (13), the No. 2 through hole (13) being opened on the No. 4 tube (45) and the clamping plate (34), the No. 4 tube (45) and the No. 1 ratchet wheel (42) being hollow structures and being in communication with the No. 2 through hole (13).

8. The intravenous infusion fixing device for psychiatric nursing according to claim 7, characterized in that: The clamping assembly (2) further comprises: A first gear (23), wherein the first gear (23) comprises two gears, which are respectively mounted on the two rotating rods (22), and the two first gears (23) are meshedly connected with each other; a fan blade (24), the fan blade (24) being rotatably mounted on the ring (5), the fan blade (24) being located within the rotation range of the air inlet hole (12); A second ratchet wheel (25) is fixedly mounted on the periphery of the fan blade (24); A third ratchet wheel (26) is fixedly mounted on one of the rotating rods (22) and meshedly connected with the second ratchet wheel (25); A fourth spring (27), the fourth spring (27) being installed between the ring (5) and the fan blade (24); A third abutment plate (28), the third abutment plate (28) adopts a telescopic structure and is slidably mounted on the ring (5), the third abutment plate (28) is used to limit the unidirectional rotation of the second ratchet wheel (25), and a fifth spring (29) is installed between the third abutment plate (28) and the ring (5); A concave hole (210), wherein the concave hole (210) is formed on the annular plate (6), and the third abutment plate (28) is located within a moving range of the concave hole (210).

9. The intravenous infusion fixing device for psychiatric nursing according to claim 8, characterized in that: The fan blade (24) is slidably mounted on the ring (5); a switch No. 1 (14) and a switch No. 2 (15) are mounted on the ring (5); the switch No. 1 (14) is located within the moving range of the fan blade (24); the switch No. 1 (14) controls the screw rod (37) to rotate after being triggered by the fan blade (24); and the switch No. 2 (15) controls the screw rod (37) to rotate in the opposite direction after being triggered by the stop plate No. 3 (28).

10. The intravenous infusion fixing device for psychiatric nursing according to claim 2, characterized in that: A telescopic rod (16) is installed on the first abutment plate (43), a push plate (17) is slidably installed on the fixed plate (31), and the push plate (17) is used to push the first ratchet wheel (42) to slide. A second gear (18) is rotatably installed on the fixed plate (31), and the first abutment plate (43) and the push plate (17) are located on both sides of the second gear (18) and are both meshed and connected with the second gear (18).

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