PICC (Peripherally Inserted Central Catheter) limb disinfecting and supporting multifunctional device

Abstract

The invention discloses a PICC (Peripherally Inserted Central Catheter) limb disinfecting and supporting multifunctional device in the technical field of medical instruments, which comprises a base with a first moving groove formed in the top, a first lifting assembly is in sliding fit in the first moving groove, and a second lifting assembly is in sliding fit in the first lifting assembly; the first lifting assembly and the second lifting assembly communicate with pneumatic assemblies. The first lifting assembly comprises a first moving column, a second moving groove is formed in the top of the first moving column, a first rotating ring is annularly arranged at the top of the first moving column, and the first rotating ring is rotationally connected with a first supporting assembly; the second lifting assembly comprises a second moving column, a second rotating ring is annularly arranged on the top of the second moving column, and the second rotating ring is rotationally connected with a second supporting assembly. The device is simple and easy to operate, and through cooperation of the pneumatic assembly, the first lifting assembly and the second lifting assembly, a specialized nurse can quickly and conveniently adjust the limb supporting angle of a patient according to operation in the PICC catheterization operation process, so that the operation efficiency is improved, and meanwhile the operation safety is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, and in particular to a multifunctional device for disinfecting and supporting a limb with a PICC catheter. Background Art

[0002] PICC tube, full name Peripherally Inserted Central Venous Catheters, is a catheter that is inserted through a peripheral vein and eventually reaches the central vein, that is, a central venous catheter that is inserted through a peripheral vein (such as the basilic vein, median cubital vein or cephalic vein and lower limb vein) and the tip of the catheter is placed in the superior vena cava or inferior vena cava. It has many advantages in the medical field, such as:

[0003] Reduce repeated punctures: For patients who need long-term intravenous infusion, PICC tubes can avoid the pain and vascular damage caused by multiple peripheral venous punctures;

[0004] Protect peripheral blood vessels: Irritating drugs enter the central vein directly through the PICC tube and are quickly diluted by the blood, reducing stimulation to the blood vessels and protecting the peripheral small veins;

[0005] Ensure infusion safety: The material and design of the PICC catheter enable it to remain in the body for a long time, ensuring the patency and stability of the infusion;

[0006] Convenient for multiple treatments: It can be used for venous access for multiple treatments, whether it is infusion, blood transfusion or injection of drugs, it can be performed through the PICC tube;

[0007] Improve patient comfort: PICC tubes reduce the tension and discomfort caused by puncture and do not affect patients' daily activities during the retention period.

[0008] In the prior art, when performing catheter puncture, in order to ensure the aseptic technical operation of the puncture process, the limb on the puncture side must be disinfected before catheterization. The patient needs to lift the patient's limb independently or with the assistance of a catheterization nurse. The catheterization operation is performed after the patient's limb is disinfected and covered with a sterile towel. The patient's limb is prone to soreness and the possibility of re-contamination after long-term lifting. Some patients are unable to lift their limbs and need special nurses to assist in lifting their hands. At the same time, additional operation panels need to be placed when laying sterile towels to provide basic support for subsequent catheterization operations and facilitate the operation. Due to the existing operation mode, it is difficult to make convenient adjustments according to the operation progress during the operation to quickly adjust the support angle of the patient's limbs. For example, a support plate is hinged or fixed on the edge of the bed, and the support plate is set horizontally (fixed height) when in use, and the patient's limbs are placed on the support plate, and then the specialist nurses disinfect them; in order to ensure the safety of the operation, the limbs need to be disinfected. When disinfecting certain surfaces of the limbs (close to the support plate), since the support plate is difficult to adjust the angle or support height, these specialist nurses are required to lift and support the patient's hand with one hand, bend the patient's limbs, and use the other hand to hold the disinfection tool to fully disinfect the patient's limbs. At this time, both hands of the specialist nurses are in a suspended state, which is easy to cause fatigue, affecting the overall operation efficiency. At the same time, the patient may also lift the limb for disinfection by himself, but whether the patient lifts it by himself or the specialist nurse assists in lifting it, it is easy to feel fatigue and soreness after a long time; then the sterile towel is laid and the subsequent catheterization operation is waited for. Therefore, the present invention proposes a multifunctional device for disinfecting and supporting the limbs for PICC catheter placement, which can not only support the patient's limbs during PICC tube surgery, but also enable specialized nurses to quickly and conveniently adjust the patient's limb support angle according to operations during the operation, so as to improve the efficiency of the operation while ensuring the safety of the operation. Summary of the invention

[0009] To solve the above problems, the present invention provides a multifunctional device for disinfecting and lifting a limb for PICC catheter placement. Through the cooperation between the pneumatic component, the first lifting component and the second lifting component, a specialist nurse can quickly and conveniently adjust the patient's limb support angle according to the operation during the operation, so as to improve the operation efficiency while ensuring the safety of the operation.

[0010] In order to achieve the above-mentioned purpose, the technical scheme of the present invention is as follows: a multifunctional device for disinfecting and lifting a limb with a PICC catheter, comprising a base with a first movable groove on the top, a displacement component for facilitating the overall movement of the device installed at the bottom of the base, a first lifting component slidingly matched in the vertical direction in the first movable groove, and a second lifting component slidingly matched in the vertical direction in the first lifting component; the first lifting component and the second lifting component are both connected to a pneumatic component for driving the two to lift and rotate;

[0011] The first lifting assembly includes a first movable column that is slidably matched with the first movable groove, a first lifting cavity is set between the bottom end of the first movable column and the bottom end of the first movable groove, a second movable groove is opened on the top of the first movable column, the first lifting cavity is connected with a first lifting interface and a first one-way ball valve is provided at the connection between the two, the first lifting cavity is connected with a first pressure relief assembly, and the first pressure relief assembly is connected with an auxiliary lifting assembly for assisting the second lifting assembly, a first rotating ring that is slidably matched with the first movable column is provided on the top ring of the first movable column, a first driving gear and a plurality of first driven gears are meshed on the inner ring of the first rotating ring, the first driving gear and the first driven gear are both rotatably connected with the first movable column, a first transmission cavity that is connected with the outside is opened inside the first movable column, one end of the rotating shaft of the first driving gear extends into the first transmission cavity and is coaxially fixedly connected with the first turbine, a first rotating interface that is connected with the first transmission cavity is provided on the side wall of the base and a second one-way ball valve is provided at the connection; a plurality of first limit assemblies for limiting the movement of the first movable column and the first rotating ring are provided between the first rotating ring and the first movable column; the first rotating ring is rotatably connected with a first support assembly for supporting the patient's limb;

[0012] The second lifting assembly includes a second driving gear and a second movable column that slides with the second movable groove, and a second lifting chamber is set between the bottom end of the second movable column and the bottom end of the second movable groove, the second lifting chamber is connected with a second lifting interface and a third one-way ball valve is provided at the connection point, and the second lifting chamber is connected with a second pressure relief assembly; a second rotating ring that slides with it is provided on the top ring of the second movable column, and the inner ring of the second rotating ring is meshed with a plurality of second driven gears that rotate with the second movable column, and the second driven gears are all meshed with the second driving gear. A second rotating chamber that is connected to the outside is opened inside the second movable column, and one end of the rotating shaft of the second driving gear extends into the second rotating chamber and is coaxially fixedly connected with the second turbine, and the second rotating chamber is connected with a second rotating interface and a fourth one-way ball valve is provided at the connection point; a plurality of second limiting assemblies for limiting the movement of the second movable column and the second rotating ring are provided between the second rotating ring and the second movable column; the second rotating ring is rotatably connected to a second support assembly for supporting the patient's limb.

[0013] The technical principle of the above scheme is as follows: the PICC catheterization limb disinfection and lifting multifunctional device is powered by a pneumatic component, and the air pressure change is used to drive the lifting and rotation of the first lifting component and the second lifting component. The first lifting component and the second lifting component slide in their respective moving grooves through the first moving column and the second moving column respectively to achieve vertical lifting, and then adjust the height of the corresponding first support component and the second support component to adapt to the various operation processes before, during and after the PICC catheterization surgery, improve the work efficiency of specialist nurses, improve the comfort of patients and reduce the possibility of secondary contamination. At the same time, the rotation function of the lifting component is realized by the rotation of the first rotating ring and the second rotating ring, and the transmission of the first driving gear, the first driven gear, the second driving gear and the second driven gear meshed therewith. The pneumatic component inflates the lifting cavity through the first lifting interface and the second lifting interface to increase the air pressure in the lifting cavity, thereby driving the moving column to rise; at the same time, the first pressure relief component and the second pressure relief component can release the air pressure in the lifting cavity when needed to make the moving column descend. In addition, the first rotating interface and the second rotating interface receive power from the pneumatic assembly through the first turbine and the second turbine respectively, drive the first driving gear and the second driving gear to rotate, thereby realizing the rotation of the rotating ring and the supporting assembly.

[0014] The above scheme has the following beneficial effects:

[0015] 1. Compared with the prior art, the device can quickly and conveniently realize the flexible lifting and adjustment of the patient's limbs through the design of the pneumatic component, the first lifting component and the second lifting component. Whether it is the lifting height of the moving column or the horizontal rotation angle of the support component, the corresponding support height and mode can be adjusted according to the specific progress of the PICC catheterization operation, so that the posture of the patient's limbs can cooperate with the specialist nurses in real time to carry out preoperative preparations (such as disinfection and laying sterile towels, etc.) and PICC catheterization operations during the operation, which greatly improves the adaptability and practicality of the device. The device controls the lifting and rotation through air pressure, and the operation is simple and quick. The specialist nurse can easily lift and rotate the first lifting component and the second lifting component by simply controlling the switch of the pneumatic component, thereby reducing the difficulty and complexity of the adjustment operation of the entire device, allowing the specialist nurse to concentrate on the operation, thereby improving the work efficiency of the specialist nurse during the PICC catheterization operation; at the same time, through the auxiliary lifting component, the released gas in the first lifting cavity is collected and stored, and used for the lifting action of the second moving column, thereby facilitating some small lifting actions of the second moving column, reducing the time for the specialist nurse to continuously control the movement of the pneumatic component, thereby saving the specialist nurse's physical strength.

[0016] 2. In this solution, the device not only has the functions of lifting and rotating, but also realizes comprehensive support for the patient's limbs through the design of the first support component and the second support component, that is, supporting the patient's limbs, so that the supporting state of the patient's limbs can adapt to the different operational requirements in PICC catheterization surgery (such as laying of sterile towels, etc.), further facilitating specialist nurses to complete the operation safely and efficiently.

[0017] 3. In this solution, the design of the first limit assembly and the second limit assembly effectively limits the movement range of the first movable column, the first rotating ring, the second movable column and the second rotating ring. When these components move to the appropriate positions, they are fixed and limited to prevent the first movable column, the first rotating ring, the second movable column and the second rotating ring from shifting during subsequent operations, which may cause operation failure or worsening of the patient's injury. At the same time, the design of the one-way ball valve also ensures the one-way flow of air pressure, thereby further improving the stability and safety of the device.

[0018] Furthermore, the pneumatic components all include a pedal seat, an inflation chamber is provided inside the pedal seat, an inflation piston is slidably fitted inside the inflation chamber, a slide rod is fixedly connected to the top of the inflation piston and the slide rod is slidably fitted with the pedal seat, an end of the slide rod away from the inflation piston is fixedly connected to a pedal, an end of the pedal away from the slide rod is hinged to the top of the pedal seat along the width direction of the pedal seat, an inflation spring surrounding the slide rod is provided in the inflation chamber, one end of the inflation spring is fixedly connected to the top of the inflation piston, and the other end of the inflation spring is fixedly connected to the top of the inflation chamber;

[0019] The inflation chamber is connected with the first reversing chamber, and the communication channel between the two is set as the first channel. A first pressing rod is provided in the first reversing chamber, and the first pressing rod is fixedly connected with a first closed piston that slides with the first reversing chamber near the bottom position. The bottom of the first pressing rod is fixedly connected with a first return spring, and the bottom end of the first return spring is fixedly connected to the bottom end of the first reversing chamber. The first reversing chamber is connected with a lifting control port, and the communication channel between the two is set as the second channel. The first reversing chamber is connected with the second reversing chamber, and the communication channel between the two is set as the third channel. The second reversing chamber is connected with a rotation control port and a locking control port, and the communication channels between the second reversing chamber and the rotation control port and the locking control port are respectively set as the fourth channel and the fifth channel. A second pressing rod is provided in the second reversing chamber, and the second pressing rod is fixedly connected with a first closed piston that slides with the first reversing chamber near the bottom position. A second sealed piston that slides together, and a second return spring is fixedly connected to the bottom of the second pressing rod; the first pressing rod and the second pressing rod are both slidably matched with the pedal seat; the second channel height is lower than the first channel, the first channel height is lower than the fourth channel, the fourth channel height is lower than the third channel, and the third channel height is lower than the fifth channel; when the first pressing rod is in the initial position, the bottom end height of the first sealed piston is higher than the first channel and the top end height is lower than the third channel, when the second pressing rod is in the initial position, the bottom end height of the second sealed piston is higher than the third channel and the top end height is lower than the fifth channel; the lifting control port is connected to the first lifting interface and the second lifting interface respectively; the rotation control port is connected to the first rotation interface and the second rotation interface respectively; the locking control port is connected to the first limit interface and the second limit interface respectively.

[0020] Beneficial effects: The pneumatic assembly realizes pneumatic control of lifting, rotating and locking functions through the structures such as the inflatable chamber, the first reversing chamber and the second reversing chamber inside the pedal seat. This highly integrated design not only reduces the number and complexity of components, but also improves the compactness and reliability of the entire device. By stepping on the pedal, the inflatable piston can be driven to slide in the inflatable chamber, and then the pneumatic drive of the lifting assembly and the rotating assembly can be realized through the elastic force of the inflatable spring. At the same time, the design of the first pressing rod and the second pressing rod enables medical staff to realize flexible and convenient switching and control of different functions of the device through a simple pressing action, so that it is convenient for specialist nurses or medical staff to quickly adjust the state of the device according to the actual situation of the operation and smoothly perform the next operation of the surgical operation item. Due to the height difference of the first channel, the second channel, the third channel, the fourth channel and the fifth channel, and the initial position design of the first closed piston and the second closed piston, when pressing the first pressing rod or the second pressing rod, the flow direction of the gas can be accurately controlled, thereby realizing accurate control of the lifting, rotating and locking functions, avoiding functional confusion or accidental injury to patients caused by misoperation. The locking function of the device can be realized through the design of the second reversing cavity, the rotation control port and the locking control port, and the pressing operation of the first pressing rod and the second pressing rod. When the position or state of the device needs to be fixed, the gas can be introduced into the locking control port by pressing the second pressing rod and the first pressing rod at the same time, thereby realizing the locking of the device, which not only improves the safety of the device, but also reduces the discomfort or injury to the patient caused by the accidental movement of the device during the operation.

[0021] Furthermore, the auxiliary lifting assembly includes an air storage box with an air storage cavity opened inside, the air storage cavity is connected to an air storage inlet, the air storage cavity is connected to an auxiliary reversing cavity, a third pressing rod is provided in the auxiliary reversing cavity and the third pressing rod is slidably matched with the air storage box, the third pressing rod is fixedly connected with a third closed piston slidably matched with the auxiliary reversing cavity near its bottom position, the third pressing rod is fixedly connected to a third return spring at the bottom of the third pressing rod, the bottom end of the third return spring is fixedly connected to the bottom of the auxiliary reversing cavity, the auxiliary reversing cavity is connected to an air storage outlet, the air storage outlet is connected to the second lifting cavity and a fifth one-way ball valve is provided at the connecting point; when the third pressing rod is in the initial position, the top height of the third closed piston is lower than the height of the connecting channel between the air storage cavity and the auxiliary reversing cavity and higher than the height of the connecting channel between the auxiliary reversing cavity and the air storage outlet; an exhaust button is provided on the top of the air storage box for releasing the gas flowing into the air storage cavity from the first lifting cavity.

[0022] Beneficial effect: The addition of the auxiliary lifting assembly provides additional lifting power for the second lifting assembly (i.e., the high-pressure gas discharged from the first lifting chamber). The gas is stored in the gas storage chamber in the gas storage box, and when needed, the gas is released into the second lifting chamber through the operation of the third pressing rod, thereby enhancing the lifting capacity of the second lifting assembly, so that the second lifting assembly can more easily achieve the target height during some small lifting movements, thereby improving the adaptability and practicality of the device.

[0023] The design of the third pressing rod and the third sealed piston allows medical staff to control the release of gas in the gas storage chamber by a simple pressing action. When the third pressing rod is pressed, the third sealed piston moves, so that the connecting channel between the gas storage chamber and the auxiliary reversing chamber is opened, and the gas is released into the second lifting chamber. At the same time, due to the action of the third reset spring, when the third pressing rod is released, the third sealed piston will automatically reset and close the connecting channel, thereby realizing flexible auxiliary control of the lifting process.

[0024] The exhaust button design on the top of the air tank allows the gas in the air storage chamber to be discharged when the auxiliary lifting function is not needed, so as to facilitate subsequent use while also reducing the possibility of energy waste. It not only improves the energy utilization efficiency, but also enables the device to maintain stable lifting performance after long-term use.

[0025] Further, the first pressure relief assembly includes a first pressure relief control chamber connected with the first lifting chamber, the first pressure relief control chamber is connected with a first pressure relief port connected with the gas storage inlet, a first pressure relief rod is arranged in the first pressure relief control chamber, the first pressure relief rod is fixedly connected with a first pressure relief piston slidingly matched with the first pressure relief control chamber near the bottom position thereof, the bottom end of the first pressure relief rod is fixedly connected with a first pressure relief spring, and the bottom end of the first pressure relief spring is fixedly connected with the bottom of the first pressure relief control chamber; when the first pressure relief rod is in the initial position, the top height of the first pressure relief piston is lower than the height of the communication channel between the first pressure relief port and the first pressure relief control chamber and is higher than the height of the communication channel between the first pressure relief control chamber and the first lifting chamber;

[0026] The second pressure relief assembly includes a second pressure relief control chamber connected to the second lifting chamber, the second pressure relief control chamber is connected to the outside, a second pressure relief rod is provided in the second pressure relief control chamber, the second pressure relief rod is fixedly connected near its bottom position with a second pressure relief piston slidingly matched with the second pressure relief control chamber, the bottom end of the second pressure relief rod is fixedly connected to a second pressure relief spring, and the bottom end of the second pressure relief spring is fixedly connected to the bottom of the second pressure relief control chamber; when the second pressure relief rod is in the initial position, the height of the top end of the second pressure relief piston is lower than the height of the communication channel between the second pressure relief control chamber and the outside and higher than the height of the communication channel between the second pressure relief control chamber and the second lifting chamber.

[0027] Beneficial effects: The design of the first pressure relief component and the second pressure relief component ensures that the first movable column and the second movable column can be reset to facilitate readjustment during subsequent surgery. At the same time, the height of the first movable column or the second movable column can be reduced by reducing the air pressure inside the first lifting chamber or the second lifting chamber, thereby improving the flexibility and practicality of the device. At the same time, the first pressure relief component and the second pressure relief component are designed for the first lifting chamber and the second lifting chamber respectively, realizing independent pressure relief of the lifting system, which not only improves the reliability and stability of the pressure relief system, but also allows medical staff to control the two lifting chambers separately according to actual needs, further improving the flexibility and adaptability of the device.

[0028] Furthermore, it also includes a control component for controlling the first support component and the second support component and rotating the first support component in the vertical direction, and the control component includes a controller.

[0029] Beneficial effects: By introducing the controller as the core of the control component, the first support component and the second support component can be precisely controlled in the vertical rotation angle, which not only improves the operating accuracy of the device, but also ensures that the patient's limbs can get the best support angle during use, thereby improving the comfort and effectiveness of the treatment process. By precisely controlling the rotation angle of the support component, medical staff can adjust to a position suitable for the patient more quickly, thereby reducing adjustment time and operation complexity, and improving overall treatment efficiency.

[0030] Further, the first support assembly includes a first support plate hinged to the first rotating ring, and a first motor for adjusting the angle of the first support plate is provided at the hinge, and the output shaft of the first motor is fixedly connected to the first support plate along the width direction thereof;

[0031] The second support assembly includes a second support plate hinged to the second rotating ring, and a second motor for adjusting the angle of the second support plate is provided at the hinge, and the output shaft of the second motor is fixedly connected to the second support plate along the width direction thereof;

[0032] The first motor and the second motor are both electrically connected to the controller.

[0033] Beneficial effects: The first motor and the second motor drive the rotation of the first support plate and the second support plate respectively, thereby achieving precise control of the angle of the support plate. This motor-driven method is more stable and accurate than traditional manual adjustment, and can ensure that the patient's limbs get the best support angle, thereby improving the comfort and effectiveness of the treatment process. The motor-driven adjustment process is automated. Medical staff only need to input the required support angle through the controller, and the motor can automatically complete the adjustment, which greatly simplifies the operation steps and improves work efficiency. Since the motor output shaft is fixedly connected to the support plate along the width direction of the support plate, the support plate can rotate freely within a certain range to adapt to the body shape and treatment needs of different patients. At the same time, the configuration of the motor and the controller also provides a flexible adjustment range, which can be personalized according to the specific situation of the patient.

[0034] Furthermore, rubber pads are provided on the top ends of the first support plate and the second support plate.

[0035] Beneficial effects: The rubber pad is soft and elastic, which can effectively buffer the pressure of the support plate on the patient's limbs and reduce discomfort. During long-term treatment, it can significantly improve the patient's comfort, reduce fatigue and reduce the possibility of secondary contamination. The rubber pad has a high friction coefficient, which can increase the adhesion between the support plate and the patient's limbs and prevent sliding or deviation when moving or adjusting the angle. The surface of the rubber pad is smooth and non-toxic and harmless, which can reduce the friction and pressure generated when the support plate directly contacts the patient's skin, reducing the risk of skin damage.

[0036] Furthermore, pressure sensors are provided between the first support plate, the second support plate and the rubber pad, and the pressure sensors are electrically connected to the controller.

[0037] Beneficial effect: By setting a pressure sensor between the first support plate, the second support plate and the rubber pad, the pressure distribution of the patient's limbs on the support plate can be monitored in real time, which helps medical staff to understand the patient's stress state in time, ensure that the support force provided by the support plate is moderate, and reduce the possibility of excessive compression or insufficient support.

[0038] Further, the first limiting assembly includes a plurality of first airbag layers arranged on the surface of the first moving column in contact with the top of the first rotating ring, a plurality of second airbag layers close to the top are embedded in the inner wall of the first moving groove, a first button for releasing the internal gas of the first airbag layer and the second airbag layer is arranged on the top of the first moving column, and the first button is slidably matched with the first moving column; the first airbag layer is connected to a first limiting interface connected to the second airbag layer;

[0039] The second limiting assembly includes a plurality of third airbag layers arranged on the surface of the second movable column in contact with the top of the second rotating ring, a plurality of fourth airbag layers close to the top are embedded in the inner wall of the second movable groove, a second button for releasing the internal gas of the third airbag layer and the fourth airbag layer is provided on the top of the second movable column, and the second button is slidably matched with the second movable column; the third airbag layer is connected to a second limiting interface connected to the fourth airbag layer.

[0040] Beneficial effects: The first limiting component and the second limiting component realize the limiting and unlocking of the first moving column and the second moving column through the inflation and deflation of the airbag layer. When the airbag layer is inflated, they can fit tightly between the rotating ring and the rotating column to provide stable support and limiting effect; when unlocking is required, just press the corresponding button to release the gas in the airbag layer, and the rotating column can be easily rotated. It is not only simple to operate, but also safe and reliable, thereby preventing it from accidentally moving or shaking during the PICC catheterization process, which not only improves the stability of the equipment, but also ensures the smooth progress of the treatment process.

[0041] Furthermore, the top of the pedal is provided with anti-skid grooves.

[0042] Beneficial effects: The anti-slip pattern design can increase the friction coefficient of the pedal surface, increase the friction when the specialist nurse steps on the pedal, reduce the possibility of slipping during the stepping process, thereby improving the energy conversion efficiency, so as to quickly adjust the movement of the first moving column, the second moving column, the first rotating ring and the second rotating ring.

[0043] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 It is an axonometric view of the first lifting assembly and the second lifting assembly of the embodiment of the multifunctional device for disinfecting and lifting a limb with a PICC catheter in the present invention;

[0045] Figure 2 A forward isometric view of the base of an embodiment of the multifunctional device for disinfecting and supporting a limb for PICC placement of the present invention;

[0046] Figure 3 A front cross-sectional view of a first lifting assembly of an embodiment of a multifunctional device for disinfecting and lifting a limb for PICC placement of the present invention;

[0047] Figure 4 A front cross-sectional view of a second lifting assembly of an embodiment of the multifunctional device for disinfecting and lifting a limb for PICC placement of the present invention;

[0048] Figure 5 A side cross-sectional view of a pneumatic component of an embodiment of a multifunctional device for disinfecting and holding a limb for PICC placement of the present invention;

[0049] Figure 6 It is a left sectional view of an auxiliary lifting assembly of an embodiment of the multifunctional device for disinfecting and lifting a limb with a PICC catheter in the present invention;

[0050] Figure 7 An axonometric view of a pneumatic component of an embodiment of a multifunctional device for disinfecting and holding a limb for PICC placement of the present invention;

[0051] Figure 8 It is an enlarged view of A of the embodiment of the multifunctional device for disinfecting and holding up a limb for PICC placement of the present invention;

[0052] Fig. 9 A schematic diagram of the first button of an embodiment of the multifunctional device for disinfecting and holding up a limb for PICC catheter placement of the present invention.

[0053] The reference numerals in the drawings of the specification include: 1, base; 2, first moving column; 3, first rotating ring; 4, first button; 5, second moving column; 6, second rotating ring; 7, second button; 8, first support plate; 9, second support plate; 10, first pressure relief rod; 11, second pressure relief rod; 12, first limit interface; 13, first rotating interface; 14, first lifting interface; 15, second lifting interface; 16, second rotating interface; 17, second limit interface; 18, second airbag layer; 19, first pressure relief port; 20, first driven gear; 21, first turbine; 22, first driving gear; 2 3. The second driven gear; 24. The second driving gear; 25. The second turbine; 26. The fourth airbag layer; 27. The pedal seat; 28. The inflatable piston; 29. ​​The slide bar; 30. The pedal; 31. The first pressing rod; 32. The second pressing rod; 33. The locking control port; 34. The rotation control port; 35. The lifting control port; 36. The fifth channel; 37. The fourth channel; 38. The second channel; 39. The third channel; 40. The first channel; 41. The air storage box; 42. The air storage inlet; 43. The air storage outlet; 44. The third pressing rod; 45. The exhaust button; 46. The first reversing chamber; 47. The first airbag layer. DETAILED DESCRIPTION

[0054] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0055] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0056] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0057] The following is further described in detail through specific implementation methods:

[0058] Embodiment 1:

[0059] As attached Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Fig. 9 As shown: a multifunctional device for disinfecting and lifting a limb with a PICC catheter, comprising a base 1 with a first movable groove on the top, a displacement component for facilitating the overall movement of the device installed at the bottom of the base 1, wherein the movable component is preferably an existing universal wheel with a self-locking structure, so as to adjust the position of the device according to surgical requirements; a first lifting component is slidably matched in the first movable groove along the vertical direction, and a second lifting component is slidably matched in the first lifting component along the vertical direction; the first lifting component and the second lifting component are respectively connected to pneumatic components for driving the two to lift and rotate;

[0060] The first lifting assembly includes a first movable column 2 that is slidably matched with the first movable groove, a first lifting cavity is set between the bottom end of the first movable column 2 and the bottom end of the first movable groove, a second movable groove is opened on the top of the first movable column 2, the first lifting cavity is connected with a first lifting interface 14, and a first one-way ball valve is provided at the connection between the two, so that only airflow is allowed to flow from the first lifting interface 14 to the lifting cavity, the first lifting cavity is connected with a first pressure relief assembly, and the first pressure relief assembly is connected with an auxiliary lifting assembly for assisting the second lifting assembly, and a first rotating ring 3 that is slidably matched with the first movable column 2 is sleeved on the top ring, and the inner ring of the first rotating ring 3 is meshed with a first driving gear 22 and The first follower gear, the first driving gear 22 and the first driven gear 20 are all rotatably connected with the first movable column 2, the first movable column 2 has a first transmission cavity connected to the outside, one end of the rotating shaft of the first driving gear 22 extends into the first transmission cavity and is coaxially screwed with the first turbine 21, the side wall of the base 1 is integrally formed with a first rotating interface 13 connected to the first transmission cavity and a second one-way ball valve is provided at the connection; a plurality of first limit assemblies for limiting the movement of the first movable column 2 and the first rotating ring 3 are provided between the first rotating ring 3 and the first movable column 2; the first rotating ring 3 is rotatably connected with a first supporting assembly for supporting the patient's limbs;

[0061] The second lifting assembly includes a second driving gear 24 and a second moving column 5 that is slidably matched with the second moving groove. A second lifting chamber is set between the bottom end of the second moving column 5 and the bottom end of the second moving groove. The second lifting chamber is connected to a second lifting interface 15 and a third one-way ball valve is provided at the connection point. The second lifting chamber is connected to a second pressure relief assembly; a second rotating ring 6 is provided on the top ring of the second moving column 5 to slide with it, and a plurality of second driven gears 23 that are rotatably matched with the second moving column 5 are meshed with the inner ring of the second rotating ring 6. The second driven gears 23 are all meshed with the second driving gear 24. A second rotating chamber that is connected to the outside is opened inside the second moving column 5. One end of the rotating shaft of the second driving gear 24 extends into the second rotating chamber and is coaxially fixedly connected with a second turbine 25. The second rotating chamber is connected to a second rotating interface 16 and a fourth one-way ball valve is provided at the connection point; a plurality of second limit assemblies for limiting the movement of the second moving column 5 and the second rotating ring 6 are provided between the second rotating ring 6 and the second moving column 5; the second rotating ring 6 is rotatably connected to a second support assembly for supporting the patient's limb.

[0062] The pneumatic components all include a pedal seat 27, an air-filling cavity is opened inside the pedal seat 27, an air-filling piston 28 is slidably fitted inside the air-filling cavity, a slide rod 29 is fixedly connected to the top of the air-filling piston 28, and the slide rod 29 is slidably fitted with the pedal seat 27, a pedal 30 is fixedly connected to the end of the slide rod 29 away from the air-filling piston 28, and in order to provide friction when the specialist nurse steps on the pedal 30, the top of the pedal 30 is engraved with anti-skid grooves to reduce the possibility of slipping, thereby improving the energy conversion efficiency, and facilitating the rapid adjustment of the first moving column 2, the second moving column 5, the first rotating ring 3 and the second rotating ring 6; the left side of the pedal 30 is hinged to the top of the pedal seat 27 along the width direction of the pedal seat 27 ( Figure 5 ), an air spring surrounding the slide rod 29 is provided in the air charging chamber, one end of the air charging spring is bonded to the top of the air charging piston 28, and the other end of the air charging spring is bonded to the top of the air charging chamber.

[0063] The inflation chamber is connected with the first reversing chamber 46, and the communication channel between the two is set as the first channel 40. The first reversing chamber 46 is provided with a first pressing rod 31. The first pressing rod 31 is fixedly connected with a first closed piston that slides with the first reversing chamber 46 near the bottom position. The bottom of the first pressing rod 31 is fixedly connected with a first return spring. The bottom end of the first return spring is fixedly connected to the bottom end of the first reversing chamber 46. The first reversing chamber 46 is connected with a lifting control port 35, and the communication channel between the two is set as the second channel 38. The first reversing chamber 46 is connected with the second reversing chamber, and the communication channel between the two is set as the third channel 39. The second reversing chamber is connected with the rotation control port 34 and the locking control port 33, and the communication channels between the second reversing chamber and the rotation control port 34 and the locking control port 33 are respectively set as the fourth channel 37 and the fifth channel 36. The second reversing chamber is provided with a second pressing rod 32. The second pressing rod 32 is fixedly connected with a second closed piston that slides with the second reversing chamber near the bottom position. The bottom of the second pressing rod 32 is fixedly connected with the first two return springs; the first pressing rod 31 and the second pressing rod 32 are both slidably matched with the pedal seat 27; the second channel 38 is lower than the first channel 40, the first channel 40 is lower than the fourth channel 37, the fourth channel 37 is lower than the third channel 39, and the third channel 39 is lower than the fifth channel 36; when the first pressing rod 31 is in the initial position, the bottom end height of the first closed piston is higher than the first channel 40 and the top end height is lower than the third channel 39, when the second pressing rod 32 is in the initial position, the bottom end height of the second closed piston is higher than the third channel 39 and the top end height is lower than the fifth channel 36; and the lifting control port 35 is respectively connected to the first lifting interface 14 and the second lifting interface 15; the rotation control port 34 is respectively connected to the first rotation interface 13 and the second rotation interface 16; the locking control port 33 is respectively connected to the first limit interface 12 and the second limit interface 17, so as to independently control the two lifting components, so as to adapt to more emergencies during the operation and the corresponding operation process.

[0064] The auxiliary lifting assembly includes an air storage box 41 with an air storage cavity opened inside, the air storage cavity is connected to an air storage inlet 42, the air storage cavity is connected to an auxiliary reversing cavity, a third pressing rod 44 is provided in the auxiliary reversing cavity and the third pressing rod 44 is slidably matched with the air storage box 41, the third pressing rod 44 is fixedly connected with a third closed piston slidably matched with the auxiliary reversing cavity near its bottom position, the third pressing rod 44 is fixedly connected with a third return spring at the bottom, the bottom of the third return spring is fixedly connected to the bottom of the auxiliary reversing cavity, the auxiliary reversing cavity is connected to an air storage outlet 43, the air storage outlet 43 is connected to the second lifting cavity and a fifth one-way ball valve is provided at the connection point; when the third pressing rod 44 is in the initial position, the top height of the third closed piston is lower than the height of the connecting channel between the air storage cavity and the auxiliary reversing cavity and higher than the height of the connecting channel between the auxiliary reversing cavity and the air storage outlet 43; an exhaust button 45 is provided at the top of the air storage box 41 for releasing the gas flowing into the air storage cavity from the first lifting cavity.

[0065] The first pressure relief assembly includes a first pressure relief control chamber connected to the first lifting chamber, the first pressure relief control chamber is connected to a first pressure relief port 19 connected to the gas storage inlet 42, a first pressure relief rod 10 is arranged in the first pressure relief control chamber, the first pressure relief rod 10 is fixedly connected to a first pressure relief piston slidingly matched with the first pressure relief control chamber near its bottom position, a first pressure relief spring is bonded to the bottom of the first pressure relief rod 10, and the bottom end of the first pressure relief spring is bonded to the bottom of the first pressure relief control chamber. When the first pressure relief rod 10 is in the initial position, the top height of the first pressure relief piston is lower than the height of the communication channel between the first pressure relief port 19 and the first pressure relief control chamber and higher than the height of the communication channel between the first pressure relief control chamber and the first lifting chamber.

[0066] The second pressure relief assembly includes a second pressure relief control chamber connected to the second lifting chamber, the second pressure relief control chamber is connected to the outside, a second pressure relief rod 11 is arranged in the second pressure relief control chamber, the second pressure relief rod 11 is integrally formed with a second pressure relief piston slidingly matched with the second pressure relief control chamber near its bottom position, a second pressure relief spring is bonded to the bottom of the second pressure relief rod 11, and the bottom end of the second pressure relief spring is bonded to the bottom of the second pressure relief control chamber. When the second pressure relief rod 11 is in the initial position, the top height of the second pressure relief piston is lower than the height of the communication channel between the second pressure relief control chamber and the outside and higher than the height of the communication channel between the second pressure relief control chamber and the second lifting chamber.

[0067] The first limiting assembly includes a plurality of first airbag layers 47 arranged on the surface of the first movable column 2 in contact with the top of the first rotating ring 3, a plurality of second airbag layers 18 are embedded in the inner wall of the first movable groove close to the top thereof, a first button 4 for releasing the internal gas of the first airbag layer 47 and the second airbag layer 18 is embedded in the top of the first movable column 2, and the first button 4 is slidably matched with the first movable column 2, the diameters at both ends of the first button 4 are larger than the diameter in the middle, and in order to ensure air tightness, a plurality of sealing rings are provided on the surface of the first button 4 in sliding contact with the first movable column 2; the first airbag layer 47 is connected to a first limiting interface 12 connected to the second airbag layer 18.

[0068] The second limiting assembly includes a plurality of third airbag layers arranged on the surface where the second moving column 2 contacts the top of the second rotating ring 6, a plurality of fourth airbag layers 26 are embedded in the inner wall of the second moving groove near the top thereof, a second button 7 for releasing the gas inside the third airbag layer and the fourth airbag layer 26 is embedded in the top of the second moving column 5, and the second button 7 is slidably matched with the second moving column 5; the third airbag layer is connected to the second limiting interface 17 connected to the fourth airbag layer 26. At the same time, the structural principle design of the exhaust button 45 and the second button 7 is the same as the design principle of the first button 4, ensuring rapid deflation and reset.

[0069] The specific implementation process is as follows: Generally, before PICC catheterization and puncture, the patient's limbs need to be disinfected to ensure aseptic operation during the operation and ensure the safety of the patient. When the patient's limbs are supported by the device for the convenience of the specialist nurse to operate, first, the specialist nurse steps on the pedal 30 corresponding to the first movable column 2, and the pedal 30 rotates around its hinge point, thereby pushing the slide bar 29 to move, and then the inflation piston 28 squeezes the air in the inflation chamber. At the same time, due to the existence of the inflation spring, when the pedal 30 is not under force, the inflation spring resets it, and then it can be repeatedly stepped on to inflate, and the support height for the patient's limbs can be quickly adjusted. At the same time, the first pressing rod 31 and the second pressing rod 32 are in the initial state, the first channel 40 is connected to the second channel 38, and the first channel 40 is connected to the third channel 39 through the first closed piston partition on the first pressing rod 31 ( Figure 8 ), thereby delivering the air squeezed by the inflation piston 28 each time to the lifting control port 35, and the lifting control port 35 on the pedal seat 27 is connected to the first lifting interface 14, thereby squeezing the gas into the first lifting chamber, so that the air pressure in the first lifting chamber is continuously increased, and through the balance characteristics of the air pressure, the air pressure in the first lifting chamber is made the same as that in the outside world, so that the gas in the first lifting chamber expands, reducing the air pressure to achieve pressure balance, and then realizing the lifting of the first movable column 2, and then adjusting the first support assembly to reach a suitable height (a height that is convenient for specialist nurses to perform disinfection and lay sterile towels) to support the patient's limbs.

[0070] When the first movable column 2 is lifted to the target position, the position of the first support assembly on the horizontal plane can be adjusted according to the actual situation to better support the patient's limbs and improve the convenience of operation of the specialist nurse. Then, the pedal 30 is stepped on again, and at the same time, the first pressing rod 31 is pressed and the second pressing rod 32 is kept in the initial state, so that the first channel 40 and the fourth channel 37 are connected, and at the same time, the first closed piston on the first pressing rod 31 is used to cut off the connection between the first channel 40 and the second channel 35 ( Figure 8 ), and then the extruded gas is sent to the rotation control port 34 on the pedal seat 27 which is connected to the first rotation interface 13, and the gas is sent into the first transmission chamber to blow the first worm gear therein to rotate, thereby driving the first driving gear 22 with the same rotation axis to rotate, and driving the first rotating ring 3 meshing with the first driving gear 22. At the same time, in order to ensure the normal operation of the first rotating ring 3, the first rotating ring 3 also meshes with a plurality of first driven gears 20, thereby ensuring the smooth movement of the device, thereby rotating the first support assembly to a specified position to support the patient's limb.

[0071] At the same time, after the movement of the first movable column 2 and the first support assembly is completed, they need to be locked to ensure that they will not be offset during the PICC catheterization operation (limb disinfection and sterile towel laying) to cause medical accidents, and then press the first pressing rod 31 and the second pressing rod 32 to connect the first channel 40 and the fifth channel 36, and step on the pedal 30 for pressurized inflation. At the same time, since the locking control port 33 on the pedal seat 27 is connected to the first limit interface 12, compressed air is input into the first airbag layer 47 and the second airbag layer 18. Through the expansion of the two, the first movable column 2 and the first rotating ring 3 are squeezed respectively, thereby increasing the friction force to limit the movement of the two. At the same time, as Fig. 9 and Figure 3 As shown, when the first button 4 is in the initial state, its right end will block the communication channel between the first airbag layer 47 and the second airbag layer 18 and the outside world. When the movement restriction of the two needs to be released, the first button 4 is pressed to make the connection channel between the first airbag layer 47 and the second airbag layer 18 in the smaller diameter part of the first button 4, so that the first airbag layer 47 and the second airbag layer 18 are connected to the outside world, and the gas therein is released. After the first button 4 is stopped, it is reset by the spring fixed at its right end. Similarly, the lifting of the second movable column 5 and the rotation of the second rotating ring 6 are formed by stepping on the corresponding pedal 30 and the first pressing rod 31 and the second pressing rod 32, and the locking and releasing of the movement restriction of the second movable column 5 and the second rotating ring 6 are also the same as the above-mentioned movement locking and releasing principles of the first movable column 2 and the first rotating ring 3. Then, the lifting and rotating of the second support assembly support the patient's hand, so as to cooperate with the first support assembly to achieve a variety of support methods for the patient's limbs, so as to improve the degree of fit of the device for PICC catheterization surgery.

[0072] When the first lifting chamber needs to release pressure, the first pressure relief rod 10 is pressed to connect the first pressure relief port 19 with the first lifting chamber, so that the high-pressure gas therein flows into the gas storage box 41. When the second movable column 5 needs to be slightly lifted, the third pressing rod 44 is pressed to release the collected high-pressure gas into the second lifting chamber, so that the second movable column 5 is lifted, thereby improving the practicality of the device and facilitating some minor adjustments of the device during surgery (such as disinfection and laying sterile towels, etc.). And when the auxiliary lifting function is not needed, the gas in the gas storage chamber can be discharged by pressing the exhaust button 45, so as to facilitate subsequent use and reduce the possibility of energy waste, which not only improves the energy utilization efficiency, but also enables the device to maintain stable lifting performance after long-term use.

[0073] When the second lifting chamber needs to be depressurized, the second pressure relief rod 11 is pressed to connect the second lifting chamber with the outside, release the high-pressure gas therein, reduce the air pressure, and complete the lowering or resetting of the second moving column 5.

[0074] After the preparatory work before the operation, such as disinfection and laying of sterile towels, is completed, the subsequent catheterization operation is performed. If the height or angle of the first support component and the second support component needs to be adjusted again according to the needs of the operation, so as to adjust the support state of the patient's limbs and cooperate with the specialist nurse to perform the catheterization and puncture. The control principles of the two (i.e., lifting, locking, resetting and rotating functions) are the same as the movement process principle of the device for the disinfection preparation work before the catheterization and puncture.

[0075] Embodiment 2:

[0076] The difference from Example 1 is that it also includes a control component for controlling the first supporting component and the second supporting component and rotating the first supporting component in the vertical direction, and the control component includes a controller.

[0077] The first support assembly includes a first support plate 8 hinged on the first rotating ring 3, and a first motor for adjusting the angle of the first support plate 8 is provided at the hinge, and the output shaft of the first motor is connected to the screw of the first support plate 8 along the width direction; the second support assembly includes a second support plate 9 hinged on the second rotating ring 6, and a second motor for adjusting the angle of the second support plate 9 is provided at the hinge, and the output shaft of the second motor is connected to the screw of the second support plate 9 along the width direction; the first motor and the second motor are both electrically connected to the controller. Therefore, according to the specific conditions of the patient and the surgical requirements, the controller controls the rotation of the first motor or the second motor, thereby driving the first support plate 8 or the second support plate 9 to rotate in the vertical plane to adjust the angle of the first support plate 8 and the second support plate 9.

[0078] The first support plate 8 and the second support plate 9 are both bonded with rubber pads at the top, and they must be non-toxic and harmless rubber pads with smooth surfaces. Because during the PICC catheterization operation, the skin of the patient's limbs may come into direct contact with the rubber pads, so in order to ensure the safety of the patient, the material of the rubber pads needs to be strictly selected, such as silicone rubber. During the PICC catheterization operation, the patient's limbs may involuntarily deviate slightly, resulting in the first support plate 8 or the second support plate 9 not being able to play a good supporting role. Then, pressure sensors are screwed between the first support plate 8 and the second support plate 9 and the rubber pads, and the pressure sensors are electrically connected to the controller to monitor the pressure distribution of the patient's limbs on the first support plate 8 or the second support plate 9 in real time, so that medical staff can understand the patient's stress state in time, ensure that the support force provided by the support plate is moderate, and avoid excessive compression or insufficient support; at the same time, according to the feedback data of the pressure sensor, medical staff can make personalized adjustments to the patient's treatment plan. For example, for areas with greater stress, the angle of the support plate can be appropriately adjusted or additional support pads can be added to ensure that the patient's limbs are supported evenly.

[0079] Finally, after the catheterization surgery, clean or replace the rubber pad and support plate in time for next use.

[0080] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A multifunctional device for disinfecting and supporting a limb with a PICC catheter, comprising a base (1) with a first movable groove on the top, characterized in that: A displacement assembly for facilitating the overall movement of the device is installed at the bottom of the base (1); a first lifting assembly is slidably matched in the first moving groove along the vertical direction; a second lifting assembly is slidably matched in the first lifting assembly along the vertical direction; the first lifting assembly and the second lifting assembly are respectively connected to a pneumatic assembly for driving the two to lift and rotate; The first lifting assembly comprises a first movable column (2) which is slidably matched with the first movable groove, a first lifting cavity is set between the bottom end of the first movable column (2) and the bottom end of the first movable groove, a second movable groove is opened on the top of the first movable column (2), the first lifting cavity is connected with a first lifting interface (14) and a first one-way ball valve is arranged at the connection point between the two, the first lifting cavity is connected with a first pressure relief assembly, the first pressure relief assembly is connected with an auxiliary lifting assembly for assisting the second lifting assembly, a first rotating ring (3) which is slidably matched with the first movable column (2) is arranged on the top ring, a first driving gear (22) and a plurality of first slave gears are meshed on the inner ring of the first rotating ring (3), the first driving gear (22) and The first driven gears (20) are all rotatably connected to the first movable column (2); a first transmission cavity communicating with the outside is formed inside the first movable column (2); one end of the rotating shaft of the first driving gear (22) extends into the first transmission cavity and is coaxially fixedly connected with the first turbine (21); a first rotating interface (13) communicating with the first transmission cavity is provided on the side wall of the base (1), and a second one-way ball valve is provided at the connection point; a plurality of first limit assemblies for limiting the movement of the first movable column (2) and the first rotating ring (3) are provided between the first rotating ring (3) and the first movable column (2); and the first rotating ring (3) is rotatably connected to a first support assembly for supporting a patient's limb along the circumferential direction of its outer ring; The second lifting assembly comprises a second driving gear (24) and a second moving column (5) slidably matched with the second moving groove; a second lifting cavity is set between the bottom end of the second moving column (5) and the bottom end of the second moving groove; the second lifting cavity is connected to a second lifting interface (15) and a third one-way ball valve is provided at the connection point; the second lifting cavity is connected to a second pressure relief assembly; a second rotating ring (6) slidably matched with the second moving column (5) is provided on the top ring; a plurality of second driven gears (23) rotatably matched with the second moving column (5) are meshed on the inner ring of the second rotating ring (6); the second driven gears (23) are all rotatably matched with the second moving column (5); The two driving gears (24) are meshed, a second rotating chamber communicating with the outside is opened inside the second moving column (5), one end of the rotating shaft of the second driving gear (24) extends into the second rotating chamber and is coaxially fixedly connected with a second turbine (25), the second rotating chamber is connected with a second rotating interface (16) and a fourth one-way ball valve is provided at the connection point; a plurality of second limiting components for limiting the movement of the second moving column (5) and the second rotating ring (6) are provided between the second rotating ring (6) and the second moving column (5); and the second rotating ring (6) is rotatably connected with a second supporting component for supporting a patient's limb.

2. The multifunctional device for disinfecting and lifting a limb for PICC placement according to claim 1, characterized in that: The pneumatic components all include a pedal seat (27), an inflation cavity is provided inside the pedal seat (27), an inflation piston (28) is slidably fitted inside the inflation cavity, a slide rod (29) is fixedly connected to the top of the inflation piston (28), and the slide rod (29) is slidably fitted with the pedal seat (27), one end of the slide rod (29) away from the inflation piston (28) is fixedly connected to a pedal (30), one end of the pedal (30) away from the slide rod (29) is hinged to the top of the pedal seat (27) along the width direction of the pedal seat (27), an inflation spring surrounding the slide rod (29) is provided in the inflation cavity, one end of the inflation spring is fixedly connected to the top of the inflation piston (28), and the other end of the inflation spring is fixedly connected to the top of the inflation cavity; The inflation chamber is connected with the first reversing chamber (46), and the communication channel between the two is set as the first channel (40). The first reversing chamber (46) is provided with a first pressing rod (31). The first pressing rod (31) is fixedly connected with a first sealed piston slidably matched with the first reversing chamber (46) near the bottom position. The bottom of the first pressing rod (31) is fixedly connected with a first return spring. The bottom end of the first return spring is fixedly connected to the bottom end of the first reversing chamber (46). The first reversing chamber (46) is connected with a lifting control port (35), and the communication channel between the two is set as the second channel (38). The first reversing chamber (46) is connected with the second reversing chamber, and the communication channel between the two is set as the third channel (39). The second reversing chamber is connected with a rotation control port (34) and a locking control port (33). The communicating channels between the second reversing chamber and the rotation control port (34) and the locking control port (33) are respectively set as the fourth channel (37) and the fifth channel (36). A second pressing rod (32) is provided in the second reversing chamber. A second sealed piston slidably matched with the second reversing chamber is fixedly connected to the second pressing rod (32) near the bottom. A second return spring is fixedly connected to the bottom of the second pressing rod (32). Both the first pressing rod (31) and the second pressing rod (32) are slidably matched with the pedal seat (27). The second channel (38) is lower in height than the first channel (40), the first channel (40) is lower in height than the fourth channel (37), the fourth channel (37) is lower in height than the third channel (39), and the third channel (39) is lower in height than the fifth channel (36). When the first pressing rod (31) is in the initial position, the bottom end height of the first sealed piston is higher than the first channel (40) and the top end height is lower than the third channel (39); when the second pressing rod (32) is in the initial position, the bottom end height of the second sealed piston is higher than the third channel (39) and the top end height is lower than the fifth channel (36); The lifting control port (35) is respectively connected to the first lifting interface (14) and the second lifting interface (15); the rotation control port (34) is respectively connected to the first rotation interface (13) and the second rotation interface (16); and the locking control port (33) is respectively connected to the first limit interface (12) and the second limit interface (17).

3. The multifunctional device for disinfecting and lifting a limb for PICC placement according to claim 2, characterized in that: The auxiliary lifting assembly comprises an air storage box (41) with an air storage cavity therein, the air storage cavity is connected to an air storage inlet (42), the air storage cavity is connected to an auxiliary reversing cavity, a third pressing rod (44) is provided in the auxiliary reversing cavity and the third pressing rod (44) is slidably matched with the air storage box (41), a third sealing piston slidably matched with the auxiliary reversing cavity is fixedly connected to the third pressing rod (44) near its bottom position, a third return spring is fixedly connected to the bottom of the third pressing rod (44), the bottom end of the third return spring is fixedly connected to the bottom of the auxiliary reversing cavity, the auxiliary reversing cavity is connected to an air storage outlet (43), the air storage outlet (43) is connected to the second lifting cavity and a fifth one-way ball valve is provided at the connection point; When the third pressing rod (44) is in the initial position, the top height of the third sealed piston is lower than the height of the communication channel between the air storage chamber and the auxiliary reversing chamber and higher than the height of the communication channel between the auxiliary reversing chamber and the air storage outlet (43); an exhaust button (45) for releasing the gas flowing from the first lifting chamber into the air storage chamber is provided on the top of the air storage box (41).

4. The multifunctional device for disinfecting and lifting a limb for PICC placement according to claim 3, characterized in that: The first pressure relief assembly comprises a first pressure relief control chamber connected to the first lifting chamber, the first pressure relief control chamber is connected to a first pressure relief port (19) connected to an air storage inlet (42), a first pressure relief rod (10) is arranged in the first pressure relief control chamber, the first pressure relief rod (10) is fixedly connected to a first pressure relief piston slidably matched with the first pressure relief control chamber near the bottom position thereof, the bottom end of the first pressure relief rod (10) is fixedly connected to a first pressure relief spring, and the bottom end of the first pressure relief spring is fixedly connected to the bottom of the first pressure relief control chamber; When the first pressure relief rod (10) is in the initial position, the height of the top end of the first pressure relief piston is lower than the height of the communication channel between the first pressure relief port (19) and the first pressure relief control chamber and higher than the height of the communication channel between the first pressure relief control chamber and the first lifting chamber; The second pressure relief assembly comprises a second pressure relief control chamber connected to the second lifting chamber, the second pressure relief control chamber is connected to the outside, a second pressure relief rod (11) is arranged in the second pressure relief control chamber, the second pressure relief rod (11) is fixedly connected to a second pressure relief piston slidingly matched with the second pressure relief control chamber near the bottom position thereof, the bottom end of the second pressure relief rod (11) is fixedly connected to a second pressure relief spring, and the bottom end of the second pressure relief spring is fixedly connected to the bottom of the second pressure relief control chamber; When the second pressure relief rod (11) is in the initial position, the height of the top of the second pressure relief piston is lower than the height of the communication channel between the second pressure relief control chamber and the outside and higher than the height of the communication channel between the second pressure relief control chamber and the second lifting chamber.

5. The multifunctional device for disinfecting and lifting a limb for PICC placement according to claim 4, characterized in that: It also includes a control component for controlling the first supporting component and the second supporting component and rotating the first supporting component in a vertical direction, and the control component includes a controller.

6. The multifunctional device for disinfecting and lifting a limb for PICC placement according to claim 5, characterized in that: The first support assembly comprises a first support plate (8) hingedly connected to the first rotating ring (3), and a first motor for adjusting the angle of the first support plate (8) is provided at the hinge, and the output shaft of the first motor is fixedly connected to the first support plate (8) along the width direction thereof; The second support assembly comprises a second support plate (9) hingedly connected to the second rotating ring (6), and a second motor for adjusting the angle of the second support plate (9) is provided at the hinge, and the output shaft of the second motor is fixedly connected to the second support plate (9) along the width direction thereof; The first motor and the second motor are both electrically connected to the controller.

7. The multifunctional device for disinfecting and lifting a limb for PICC placement according to claim 6, characterized in that: Rubber pads are provided at the top ends of the first support plate (8) and the second support plate (9).

8. The multifunctional device for disinfecting and lifting a limb for PICC placement according to claim 7, characterized in that: Pressure sensors are provided between the first support plate (8) and the second support plate (9) and the rubber pad, and the pressure sensors are electrically connected to the controller.

9. The multifunctional device for disinfecting and lifting a limb for PICC placement according to claim 8, characterized in that: The first limiting assembly comprises a plurality of first airbag layers (47) arranged on the surface where the first moving column (2) contacts the top of the first rotating ring (3); a plurality of second airbag layers (18) are embedded in the inner wall of the first moving groove near the top thereof; a first button (4) for releasing the internal gas of the first airbag layer (47) and the second airbag layer (18) is arranged on the top of the first moving column (2); and the first button (4) is slidably matched with the first moving column (2); the first airbag layer (47) is connected to a first limiting interface (12) connected to the second airbag layer (18); The second limiting assembly includes a plurality of third airbag layers arranged on the surface where the second movable column (2) contacts the top of the second rotating ring (6); a plurality of fourth airbag layers (26) are embedded in the inner wall of the second movable groove near the top thereof; a second button (7) for releasing the internal gas of the third airbag layer and the fourth airbag layer (26) is provided on the top of the second movable column (5); and the second button (7) is slidably matched with the second movable column (5); the third airbag layer is connected to a second limiting interface (17) connected to the fourth airbag layer (26).

10. The multifunctional device for disinfecting and lifting a limb for PICC placement according to claim 9, characterized in that: The top of the pedal (30) is provided with anti-skid grooves.

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