Supporting frame for improving elbow comfort degree of PICC operator and using method of supporting frame

Abstract

The invention relates to the technical field of medical instruments, in particular to a supporting frame for improving the elbow comfort degree of a PICC operator and a using method of the supporting frame. The supporting frame comprises a walking base, a pedal type height adjusting mechanism, a supporting platform, a patient arm supporting mechanism and an operator arm supporting mechanism; the pedal type height adjusting mechanism is connected to the middle of the upper side of the walking base, the supporting platform is connected to the top of the pedal type height adjusting mechanism, the patient arm supporting mechanism and the operator arm supporting mechanism are symmetrically arranged on the two sides of the supporting platform, and the patient arm supporting mechanism comprises an overlapping part and a supporting part which are connected to the two sides of a rotating part; the operator arm supporting mechanism comprises an elbow support, a swing arm, a rotating arm and an angle adjusting assembly. According to the invention, the muscle burden of a PICC operator in long-time work can be obviously relieved, more optimized working conditions are provided for the operator, the safety of the operation process is favorably improved, and the operation risk is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a support frame for improving the elbow comfort of a PICC operator and a use method thereof. Background Art

[0002] PICC (Peripherally Inserted Central Catheter) is widely used in clinical medicine, mainly for providing patients with medium- and long-term intravenous infusion therapy, especially for patients who need long-term infusion, infusion of irritating drugs or lack of peripheral venous access. It is a safe and effective catheterization technology. Its operation method is usually through the venous puncture of the elbow, the basilic vein is preferred, and the PICC catheter is inserted into the superior vena cava of the right atrium through the cannula sheath. For example, in the oncology department, since tumor patients need to receive long-term chemotherapy and intravenous nutritional support, PICC catheters have become a common means of treating tumor patients due to their advantages such as simple operation, long retention time and few complications. In pediatrics, PICC catheters also play an important role for premature infants and low birth weight infants with thin blood vessels who need long-term infusion or repeated blood sampling. In the intensive care department, PICC catheters can facilitate drug infusion, blood sample collection and hemodynamic monitoring.

[0003] However, during PICC puncture or subsequent care operations, patients need to raise their arms so that their arms and torsos are raised upward at a certain angle to facilitate the operation of medical staff. But there are some shortcomings. On the one hand, during the operation, the patient's elbows lack effective support and comfortable support. Maintaining a specific posture for a long time can easily cause soreness in the elbows, which not only increases the patient's pain, but may also affect the accuracy and fluency of the operation due to the patient's unconscious movement. For example, during long-term puncture or nursing operations, it is difficult for the patient's elbow to maintain stability, resulting in changes in the position of the puncture site, increasing the risk of puncture failure or unnecessary harm to the patient. According to clinical observation statistics, in about 30% of PICC operations, the patient's body movement caused by elbow discomfort caused varying degrees of interference with the operation.

[0004] On the other hand, as operators, medical staff are increasingly facing elbow fatigue issues when performing such delicate operations for a long time. Maintaining a specific operating posture for a long time puts a lot of pressure on the elbows, which can easily lead to muscle strain and fatigue. According to relevant surveys, about 70% of medical staff will feel obvious discomfort in their elbows after performing PICC operations for more than 30 minutes continuously. This elbow fatigue not only affects the operating comfort of medical staff, but also poses a challenge to operating safety and efficiency. In a fatigued state, the hand stability of medical staff decreases, and the operating accuracy decreases, which may lead to longer puncture time, increase the patient's pain and infection risk, and may even cause operating errors, affecting the patient's treatment effect.

[0005] In the prior art, auxiliary brackets are provided for placing the patient's arm, but most of the existing auxiliary brackets only focus on the placement and fixation of the patient's arm, ignoring the support of the operator's elbow. In addition, some brackets have simple structures and cannot provide personalized and accurate support for the elbow according to the individual differences of patients and different operation requirements. Moreover, in actual use, the existing auxiliary brackets are difficult to effectively disperse the elbow pressure, making the patient uncomfortable during the operation, which in turn affects the patient's cooperation.

[0006] In summary, developing a support frame that can improve the comfort of the PICC operator's elbow to solve the shortcomings of existing auxiliary supports has become an urgent problem to be solved in the current clinical medical field. This not only helps to improve the patient's experience during PICC operation, but also provides medical staff with more stable and convenient operating conditions, and improves the success rate and safety of the operation. Summary of the invention

[0007] The purpose of the present invention is to provide a support frame for improving the elbow comfort of a PICC operator and a method of using the support frame, which can significantly reduce the muscle burden of the PICC operator during long-term work, provide the operator with more optimized working conditions, help increase the safety of the operation process, reduce the operation risk, and solve the problems in the prior art that the operator's elbow comfort is low during PICC operation and the equipment cannot meet diverse needs.

[0008] To achieve the above-mentioned purpose, the present invention provides a support frame for improving the comfort of the elbow of a PICC operator, the support frame comprising a walking base, a foot-operated height adjustment mechanism, a support platform, a patient arm support mechanism and an operator arm support mechanism, the foot-operated height adjustment mechanism is connected to the middle part of the upper side of the walking base, the support platform is connected to the top of the foot-operated height adjustment mechanism, the patient arm support mechanism and the operator arm support mechanism are symmetrically arranged on both sides of the support platform, the patient arm support mechanism comprises an overlapping part and a support part connected to both sides of a rotating part, and the operator arm support mechanism comprises an elbow rest, a swing arm, a rotating arm and an angle adjustment component.

[0009] Preferably, a walking wheel is fixedly connected to the bottom of the walking base, and a brake pad is hinged on one side of the walking wheel.

[0010] Preferably, the foot-operated height adjustment mechanism includes a support column, an adjusting column, a height adjustment assembly, a fixing assembly and a foot-operated assembly. The support column is fixedly connected to the upper side of the walking base, the adjusting column is slidably connected to the inside of the support column, the top of the adjusting column is fixedly connected to the supporting platform, an adjusting port 1 is provided on one side of the upper portion of the support column, a plurality of downwardly inclined snap-in teeth 1 are provided on the side of the adjusting column close to the adjusting port 1, the top of the height adjustment assembly passes through the adjusting port 1 and is connected to the snap-in teeth 1, the foot-operated assembly is arranged at the bottom of the height adjustment assembly, an adjusting port 2 is provided on the other side of the upper portion of the support column, a plurality of downwardly inclined snap-in teeth 2 are provided on the side of the adjusting column close to the adjusting port 2, and the fixing assembly passes through the adjusting port 2 and is connected to the snap-in teeth 2.

[0011] Preferably, the height adjustment assembly includes a height adjustment block, a height adjustment rod and a connecting rod; an outer side of an adjustment port is fixedly connected to a hinge seat; a middle part of the hinge seat is hinged to a middle part of the height adjustment rod through a pin; one end of the height adjustment rod located inside the hinge seat is hinged to a connecting part of the height adjustment block; one end of the height adjustment rod extending out of the outer side of the hinge seat is hinged to a top of the connecting rod; a clamping part of the height adjustment block passes through the adjustment port and is abutted against a clamping tooth; and a handle extending to the outside is also provided at the clamping part of the height adjustment block.

[0012] Preferably, the foot pedal assembly includes a rocker, a pedal, a counterweight rod and a counterweight block. A support column is provided with an articulated seat 2 below the articulated seat 1. The middle part of the articulated seat 2 is hinged to one end of the rocker through a pin shaft. The other end of the rocker is fixedly connected to the pedal. A connecting port is provided on the side of the rocker close to the articulated seat 2. The connecting port is hinged to the bottom of the connecting rod 1 through a pin shaft. The side of the rocker close to the connecting port is fixedly connected to the counterweight block 1 through the counterweight rod 1.

[0013] Preferably, the fixing assembly includes a fixing rod, a counterweight rod 2 and a counterweight block 2. The outer side of the adjusting port 2 is fixedly connected with a hinge seat 3. The middle part of the hinge seat 3 is connected to the fixing rod through a pin shaft. One end of the fixing rod extends into the adjusting port 2 and is abutted against the engaging tooth 2. The other end of the fixing rod is provided with a handle 2 extending to the outside. One side of the middle part of the fixing rod is fixedly connected to the counterweight block 2 through the counterweight rod 2.

[0014] Preferably, the overlapping portion comprises a length adjustment shaft 1, an upper arm support 1 and an upper arm support 2, the bottoms of the upper arm support 1 and the upper arm support 2 are fixedly connected with a shaft sleeve 1, a set of the shaft sleeve is arranged on the length adjustment shaft 1 and is slidably connected to the length adjustment shaft 1, and a fixing knob 1 is arranged on one side of the shaft sleeve 1; The supporting part comprises a length adjustment shaft 2 and a forearm support, the bottom of the forearm support is fixedly connected with a shaft sleeve 2, the shaft sleeve 2 is sleeved on the length adjustment shaft 2 and slidably connected with the length adjustment shaft 2, and a fixed knob 2 is provided on one side of the shaft sleeve 2.

[0015] Preferably, the rotating part includes a rotating shaft one and a rotating shaft two which are symmetrically arranged, one end of the rotating shaft one is fixedly connected to the length adjustment shaft one through a fixing plate one, one end of the rotating shaft two is fixedly connected to the length adjustment shaft two through a fixing plate two, the other end of the rotating shaft one and the other end of the rotating shaft two are both hinged to the damping shaft, the middle part of the damping shaft is connected to one end of the rotating adjustment rod, and the other end of the rotating adjustment rod is fixedly connected to the fixing plate one.

[0016] Preferably, an external spur gear is provided in the middle of the damping shaft, an internal spur gear sleeve is provided on the end of the rotating adjustment rod close to the damping shaft, the external spur gear is meshingly connected with the internal spur gear sleeve, and damping gaskets are connected on both sides of the damping shaft.

[0017] Preferably, the elbow rest comprises an arc-shaped frame, a support groove is provided on the upper side of the arc-shaped frame, a flexible pad is bonded in the support groove, both side edges of the flexible pad extend to the inner edge of the support groove, and the length is consistent with the length of the support groove, and the flexible pad is one of a sponge pad, a silicone pad, a rubber pad and a latex air cushion.

[0018] Preferably, the bottom of the elbow rest is connected to the angle adjustment assembly, the angle adjustment assembly is rotatably connected to one end of the pivot arm, the other end of the pivot arm is rotatably connected to one side of the connecting piece, the other side of the connecting piece is rotatably connected to the top of the pivot arm, the bottom of the swing arm is hinged to the fastener, the fastener is sleeved on the fixed rod, and the bottom of the fixed rod is fixedly connected to the support platform through a fixed chassis.

[0019] Preferably, the angle adjustment assembly includes a supporting block, an up-and-down flip block, a universal base and a universal turntable, one end of the supporting block is rotatably connected to one end of the rotating arm, the up-and-down flip block is rotatably connected to the other end of the supporting block, the universal base is fixedly connected to the top of the up-and-down flip block, a rotating cavity is provided in the universal base, the universal turntable is rotatably connected in the rotating cavity, and one side of the universal turntable is fixedly connected to the bottom of the elbow support through a connecting pillar. A wavy groove is arranged around the inner wall of the rotating cavity, and a positioning groove is opened on one side of the bottom of the universal turntable. A positioning bead is connected in the positioning groove through a positioning spring. The positioning bead extends out of the positioning groove and is clamped with the wavy groove.

[0020] The method for using the above-mentioned support frame for improving the elbow comfort of the PICC operator comprises the following steps: S1. Move the support frame to the vicinity of the patient and the operator, and fix the walking base; S2. Adjust the height of the support platform according to the height of the patient's arm through the foot-operated height adjustment mechanism, place the patient's arm into the patient's arm support mechanism, and adjust the positions of the overlapping portion and the support portion according to the angle at which the patient's arm is raised; S3. The operator rotates the swing arm, rotating arm and angle adjustment assembly according to the patient's operating part, so as to adjust the elbow support to a suitable position. When inserting the tube, the operator places the elbow on the elbow support for operation; S4. During the operation, the operator fine-tunes the direction of the arm through the arm support mechanism according to the operation position.

[0021] Beneficial effects of the present invention: (1) The present invention adopts the above-mentioned support frame for improving the elbow comfort of the PICC operator and the use method thereof. By setting a foot-operated height adjustment mechanism, the operator can easily and quickly adjust the height of the support platform according to the height of the patient's arm, and when adjusting the height during the operation, no manual operation is required, the operation process is more convenient and efficient, and the flexibility of the operation is improved.

[0022] (2) The present invention adopts the above-mentioned support frame for improving the elbow comfort of the PICC operator and its use method. The overlapping part and the supporting part of the patient's arm support mechanism can be adjusted according to the lifting angle and length of the patient's arm to meet the needs of patients of different body shapes, improve the patient's comfort, and facilitate the smooth operation.

[0023] (3) The present invention adopts the above-mentioned support frame for improving the elbow comfort of the PICC operator and its use method. The elbow support of the operator's arm support mechanism can be flexibly adjusted in multiple directions through a swing arm, a rotating arm and an angle adjustment component to meet the needs of different operating positions, effectively reduce the operator's elbow pressure, improve elbow comfort, and thus improve the accuracy and efficiency of the operation.

[0024] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is an overall schematic diagram of a support frame for improving the elbow comfort of a PICC operator according to the present invention; Figure 2 is a schematic diagram of a foot-operated height adjustment mechanism of the present invention; Figure 3 It is a schematic diagram of the connection between the height adjustment component and the fixing component and the adjustment column of the present invention; Figure 4 is a schematic diagram of a height adjustment block of the present invention; Figure 5 is a schematic diagram of a fixing assembly of the present invention; Figure 6 is a schematic diagram of a patient arm support mechanism of the present invention; Figure 7 is a schematic diagram of the rotating part of the present invention; Figure 8is a schematic diagram of the damping shaft of the present invention; Fig. 9 is a schematic diagram of a rotating adjustment rod of the present invention; Fig.10 is a schematic diagram of the connection between the elbow support and the angle adjustment assembly of the present invention; Fig.11 It is a cross-sectional schematic diagram of the universal base of the present invention.

[0026] Reference numerals: 1. Walking base; 11. Walking wheels; 12. Brake pads; 2. Foot-operated height adjustment mechanism; 21. Support column; 211. Adjustment port 1; 212. Adjustment port 2; 22. Adjustment column; 221. Snap-on tooth 1; 222. Snap-on tooth 2; 23. Height adjustment assembly; 231. Height adjustment block; 2311. Connecting portion; 2312. Snap-on portion; 2313. Handle 1; 232. Height adjustment rod; 233. Connecting rod 1; 24. Fixed assembly; 241. Fixed rod; 242. Counterweight rod 2; 243. Counterweight block 2; 244. Handle 2; 25. Foot-operated assembly; 251. Rocker; 2511. Connecting port; 252. Pedal; 253. Counterweight rod 1; 254. Counterweight block 1; 26. Articulated seat 1; 27. Articulated seat 2; 28. Articulated seat 3; 3. Support platform; 4. Patient arm support mechanism; 41. Overlapping part; 411. Length adjustment shaft 1; 412. Upper arm support 1; 413. Upper arm support 2; 414. Bushing 1; 415. Fixed knob 1; 42. Support part; 421. Length adjustment shaft 2; 422. Forearm support; 423. Bushing 2; 424. Fixed knob 2; 43. Rotating part; 431. Rotating shaft 1; 432. Rotating shaft 2; 433. Fixed plate 1; 434. Fixed plate 2; 435. Damping shaft; 4351. External spur gear; 436. Rotation adjustment rod; 4361. Internal spur gear sleeve; 437. Damping gasket; 5. Operator arm support mechanism; 51. Elbow support; 511. Arc frame; 512. Support groove; 513. Flexible pad; 52. Swing arm; 53. Rotating arm; 54. Angle adjustment assembly; 541. Support block; 542. Up and down flip block; 543. Universal base; 5431. Wave-shaped groove; 544. Universal turntable; 5441. Positioning groove; 5442. Positioning spring; 5443. Positioning bead; 55. Connector; 56. Fastener; 57. Fixed rod II; 58. Fixed chassis. DETAILED DESCRIPTION

[0027] The present invention is further described below in conjunction with the accompanying drawings and embodiments. Unless otherwise defined, the technical terms or scientific terms used in the present invention should be the common meanings understood by people with ordinary skills in the field to which the present invention belongs. The above-mentioned features or features mentioned in the specific examples mentioned in the present invention can be combined arbitrarily, and these specific embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention.

[0028] Example 1 like Figure 1 As shown, the present invention provides a support frame for improving the comfort of the elbow of a PICC operator, the support frame comprises a walking base 1, a foot-operated height adjustment mechanism 2, a support platform 3, a patient arm support mechanism 4 and an operator arm support mechanism 5, the bottom of the walking base 1 is fixedly connected with a walking wheel 11, one side of the walking wheel 11 is hinged with a brake pad 12, the walking base 1 enables the support frame to have good maneuverability, in a medical environment, medical staff can easily push it to the vicinity of the patient and the operator, ensure that the patient arm support mechanism 4 and the operator arm support mechanism 5 can be accurately located at the appropriate position, convenient for PICC operation, after the walking base 1 is moved to the appropriate position, it can be fixed by the brake pad 12, thereby improving the stability of the support of the walking base 1.

[0029] like Figure 2 As shown, the foot-operated height adjustment mechanism 2 is connected to the middle part of the upper side of the walking base 1, and the foot-operated height adjustment mechanism 2 includes a support column 21, an adjustment column 22, a height adjustment component 23, a fixing component 24 and a foot-operated component 25. The support column 21 is fixedly connected to the upper side of the walking base 1, and the adjustment column 22 is slidably connected to the inside of the support column 21. The top of the adjustment column 22 is fixedly connected to the supporting platform 3. An adjusting port 1 211 is provided on one side of the upper part of the support column 21, and a plurality of downwardly inclined engaging teeth 1 221 are provided on the side of the adjusting column 22 close to the adjusting port 1 211. The top of the height adjustment component 23 passes through the adjusting port 1 211 and is connected with the engaging teeth 1 221. The foot-operated component 25 is arranged at the bottom of the height adjustment component 23. An adjusting port 212 is provided on the other side of the upper part of the support column 21, and a plurality of downwardly inclined engaging teeth 222 are provided on the side of the adjusting column 22 close to the adjusting port 212. The fixing component 24 passes through the adjusting port 212 and is connected with the engaging teeth 222.

[0030] like Figure 3-4As shown, the height adjustment assembly 23 includes a height adjustment block 231, a height adjustment rod 232 and a connecting rod 233. The outer side of the adjustment port 211 is fixedly connected with a hinge seat 26. The middle part of the hinge seat 26 is hinged to the middle part of the height adjustment rod 232 through a pin. One end of the height adjustment rod 232 located inside the hinge seat is hinged to the connecting part 2311 of the height adjustment block 231. One end of the height adjustment rod 232 extending outside the hinge seat is hinged to the top of the connecting rod 233. The clamping part 2312 of the height adjustment block 231 passes through the adjustment port 211 and is abutted against the clamping tooth 221. The clamping part 2312 of the height adjustment block 231 is also provided with a handle 2313 extending to the outside.

[0031] The pedal assembly 25 includes a rocker 251, a pedal 252, a counterweight rod 253 and a counterweight block 254. The support column 21 is located below the hinge seat 26 and is provided with a hinge seat 27. The middle part of the hinge seat 27 is hinged to one end of the rocker 251 through a pin shaft, and the other end of the rocker 251 is fixedly connected to the pedal 252. A connecting port 2511 is provided on the side of the rocker 251 close to the hinge seat 2. The connecting port 2511 is hinged to the bottom of the connecting rod 233 through a pin shaft, and the side of the rocker 251 close to the connecting port 2511 is fixedly connected to the counterweight block 254 through the counterweight rod 253.

[0032] like Figure 5 As shown, the fixing assembly 24 includes a fixing rod 1 241, a counterweight rod 242 and a counterweight block 243. The outer side of the adjusting port 212 is fixedly connected with a hinge seat 3 28. The middle part of the hinge seat 3 28 is connected with the fixing rod 1 241 through a pin shaft. One end of the fixing rod 1 241 extends into the adjusting port 212 and is abutted against the engaging tooth 222. One side of the middle part of the fixing rod 1 241 is fixedly connected with the counterweight block 243 through the counterweight rod 242. The other end of the fixing rod 1 241 is provided with a handle 244 extending to the outside.

[0033] When the height of the support platform 3 needs to be raised, the operator steps on the pedal 252, and the pedal 252 drives the rocker 251 to rotate around the hinge seat 27. Since a connecting port 2511 is provided on the side of the rocker 251 close to the hinge seat 27, and it is hinged to the bottom of the connecting rod 1 233 through a pin shaft, the rocker 251 will pull the connecting rod 1 233 to move downward when it rotates. The top of the connecting rod 233 is hinged to the height adjustment rod 232, and the middle part of the height adjustment rod 232 is hinged to the hinge seat 26 through a pin shaft. Under the pulling of the connecting rod 233, the height adjustment rod 232 rotates with the hinge seat 26 as a fulcrum, so that the end of the height adjustment rod 232 located inside the hinge seat 26 is lifted upward, thereby driving the end of the height adjustment block 231 hinged thereto close to the engaging tooth 221 to move upward, and the height adjustment block 231 then pushes the adjustment column 22 to slide upward in the support column 21 through the engaging tooth 221, and the fixing rod 241 is first disconnected from the engaging tooth 222 and then abutted against each other to fix the raised support column 21.

[0034] The operator releases the pedal 252, and under the gravity of the counterweight rod 1 253 and the counterweight block 1 254, the rocker 251 rotates in the opposite direction, and drives the height adjustment rod 232 to rotate in the opposite direction through the connecting rod 1 233, so that the height adjustment block 231 moves downward, and its clamping part 2312 moves to the lower side of the next clamping tooth 1 221, and is again abutted and clamped with the next clamping tooth 1 221. After adjusting the height, the fixed rod 1 241, under the action of the counterweight rod 242 and the counterweight block 243, always maintains a state of abutting against the clamping tooth 222, providing upward pressure for the adjustment column 22, and preventing the adjustment column 22 from sliding down due to its own gravity. Repeating the above operation many times, the operator can adjust the support platform 3 to a suitable height according to actual needs. When it is adjusted to the required height, the pedal 252 is released to fix the adjustment column 22 at the current position to maintain the height of the support platform 3.

[0035] When the height of the supporting platform 3 needs to be lowered, the handle 1 2313 and the handle 2 244 are turned downward at the same time to separate the height adjustment block 231 from the engaging tooth 1 221 and the fixing rod 1 241 from the engaging tooth 222, so that the adjusting column 22 can move downward under its own gravity.

[0036] With the foot-operated design, the operator does not need to bend down manually or use other tools to adjust the height of the support platform 3. During the PICC operation, when the operator's hands are busy preparing instruments or contacting patients, if the patient's arm position or the operator's own operating posture needs to be adjusted in height, the operator can adjust it in real time by stepping on the pedal 252 at any time without manual adjustment, which greatly improves the convenience and efficiency of the operation and reduces interruptions during the operation. The entire adjustment process is fast and the height adjustment can be completed in a short time, which improves the efficiency of medical work and reduces the waiting time of patients.

[0037] like Figure 6-9 As shown, the support platform 3 is connected to the top of the foot-operated height adjustment mechanism 2, and the patient arm support mechanism 4 and the operator arm support mechanism 5 are symmetrically arranged on both sides of the support platform 3, which can greatly improve the convenience of operation. During the PICC operation, the patient arm support mechanism 4 and the operator arm support mechanism 5 share the support platform 3, which can ensure that the heights of the two are coordinated and consistent, in line with the principles of ergonomics. When the patient's arm is placed on the support mechanism, its height and angle match the operator's elbow support, reducing the discomfort caused by improper arm posture of the patient, and the operator can also maintain the operating posture more naturally, reducing elbow and arm fatigue caused by incoordination of posture, thereby improving the comfort during the operation. At the same time, the patient arm support mechanism 4 and the operator arm support mechanism 5 are located on the same support platform 3, which helps medical staff to more accurately control the puncture force, angle and depth, reduce the operation error caused by unstable support or incoordination of position, thereby improving the success rate and safety of the operation.

[0038] The patient arm support mechanism 4 includes an overlapping portion 41 and a supporting portion 42 connected on both sides of a rotating portion 43, the overlapping portion 41 includes a length adjustment shaft 411, an upper arm support 412 and an upper arm support 413, the bottoms of the upper arm support 412 and the upper arm support 413 are fixedly connected with a sleeve 414, the sleeve 414 is sleeved on the length adjustment shaft 411 and is slidably connected to the length adjustment shaft 411, and a fixed knob 415 is provided on one side of the sleeve 414.

[0039] The supporting part 42 includes a second length adjustment shaft 421 and a forearm support 422. The bottom of the forearm support 422 is fixedly connected with a second shaft sleeve 423. The second shaft sleeve 423 is sleeved on the second length adjustment shaft 421 and slidably connected with the second length adjustment shaft 421. A second fixing knob 424 is provided on one side of the second shaft sleeve 423.

[0040] The rotating part 43 includes a rotating shaft 1 431 and a rotating shaft 2 432 which are symmetrically arranged. One end of the rotating shaft 1 431 is fixedly connected to the length adjustment shaft 1 411 through a fixing plate 1 433, and one end of the rotating shaft 2 432 is fixedly connected to the length adjustment shaft 2 421 through a fixing plate 2 434. The other ends of the rotating shaft 1 431 and the other ends of the rotating shaft 2 432 are both hinged to the damping shaft 435. The middle part of the damping shaft 435 is connected to one end of a rotating adjustment rod 436, and the other end of the rotating adjustment rod 436 is fixedly connected to the fixing plate 1 433.

[0041] An outer spur gear 4351 is provided in the middle of the damping shaft 435 , an inner spur gear sleeve 4361 is provided on one end of the rotating adjustment rod 436 close to the damping shaft 435 , the outer spur gear 4351 is meshedly connected with the inner spur gear sleeve 4361 , and damping washers 437 are connected to both sides of the damping shaft 435 .

[0042] After the patient places his arm on the patient arm support mechanism 4, if the length of the patient's upper arm is different, the medical staff can loosen the fixing knob 1 415 on the side of the shaft sleeve 1 414, so that the upper arm support 1 412 and the upper arm support 2 413 can slide freely along the length adjustment shaft 1 411, and adjust the upper arm support 1 412 and the upper arm support 2 413 to a suitable position according to the actual length of the patient's upper arm to provide stable support for the patient's upper arm. After the adjustment is completed, tighten the fixing knob 1 415 to fix it. Similarly, according to the forearm length of different patients, loosen the fixing knob 2 424 on the side of the shaft sleeve 2 423, and the forearm support 422 can slide along the length adjustment shaft 2 421 to find a support position suitable for the patient's forearm, and finally tighten the fixing knob 2 424 to complete the fixation.

[0043] The angle between the overlapping portion 41 and the supporting portion 42 is adjusted by the rotating portion 43 so that the patient's arm can be lifted up to a suitable angle as needed. When adjusting the angle, first lift the rotating adjustment rod 436 upward, and the damping shaft 435 is driven to rotate due to the meshing action of the inner spur gear sleeve 4361 and the outer spur gear 4351. The rotation of the damping shaft 435 causes the rotating shaft 1 431 and the rotating shaft 2 432 to rotate relative to each other, thereby changing the angle of the overlapping portion 41 and the supporting portion 42 to adapt to the placement angle of the patient's arm. The damping gaskets 437 on both sides of the damping shaft 435 provide damping force during the angle adjustment process, making the adjustment process smooth and smooth. After adjusting to the appropriate angle, maintain a stable state to prevent the overlapping portion 41 and the supporting portion 42 from shaking at will, ensuring that the patient's arm can be stably and reliably supported during the entire operation.

[0044] like Figure 10-11 As shown, the operator arm support mechanism 5 includes an elbow support 51, a swing arm 52, a rotating arm 53 and an angle adjustment component 54. Each part works together to provide the operator with comfortable and flexible elbow support, ensuring accurate and efficient operation. The elbow support 51 includes an arc frame 511, and a support groove 512 is provided on the upper side of the arc frame 511. A flexible pad 513 is bonded in the support groove 512. The two side edges of the flexible pad 513 extend to the inner edge of the support groove 512, and the length is consistent with the length of the support groove 512. The flexible pad 513 is one of a sponge pad, a silicone pad, a rubber pad and a latex air cushion.

[0045] The bottom of the elbow support 51 is connected to the angle adjustment component 54, the angle adjustment component 54 is rotatably connected to one end of the rotating arm 53, the other end of the rotating arm 53 is rotatably connected to one side of the connecting member 55, and the other side of the connecting member 55 is rotatably connected to the top of the rotating arm 53. The swing arm 52 adopts the swing arm 52 with damping in the prior art, the bottom of the swing arm 52 is hinged to the fastener 56, the fastener 56 adopts the fastener 56 with adjustable tightness in the prior art, the fastener 56 is sleeved on the second fixing rod 57, and the bottom of the second fixing rod 57 is fixedly connected to the support platform 3 through the fixed chassis 58.

[0046] When in use, the position of the elbow rest 51 is first adjusted in a large range through the swing arm 52 and the rotating arm 53. The operator can rotate the swing arm 52 according to the patient's operating part, so that it changes its position in the vertical direction with the hinge point with the fixed rod 57 as the axis, thereby roughly determining the vertical position of the elbow rest 51. When the rotating arm 53 is rotated, it can change its position in the horizontal direction with the rotation point with the connecting member 55 as the axis, thereby adjusting the height and angle of the elbow rest 51 in the horizontal direction. Through the cooperation of the swing arm 52 and the rotating arm 53, the preliminary positioning of the elbow rest 51 in space is achieved.

[0047] Then, the angle of the elbow rest 51 is finely adjusted through the angle adjustment assembly 54. The angle adjustment assembly 54 includes a supporting block 541, an up-and-down flip block 542, a universal base 543 and a universal turntable 544. One end of the supporting block 541 is rotatably connected to one end of the rotating arm 53, so that the angle adjustment assembly 54 can rotate relative to the rotating arm 53 within a certain angle range. The up-and-down flip block 542 is rotatably connected to the other end of the supporting block 541, so that the angle adjustment in the up-and-down direction can be achieved. The universal base 543 is fixedly connected to the top of the up-and-down flip block 542, and a rotating cavity is provided inside. The universal turntable 544 is rotatably connected in the rotating cavity.

[0048] One side of the universal turntable 544 is fixed to the bottom of the elbow rest 51 through a connecting support, and the angle of the elbow rest 51 can be fine-tuned in multiple directions by rotating the universal turntable 544. A wavy groove 5431 is provided on the inner wall of the rotating cavity, and a positioning groove 5441 is provided on one side of the bottom of the universal turntable 544. A positioning bead 5443 is connected to the positioning groove 5441 through a positioning spring 5442. The positioning bead 5443 extends out of the positioning groove 5441 and engages with the wavy groove 5431. During the rotation process, the positioning bead 5443 compresses the positioning spring 5442 under the pressure of the wavy groove 5431 and retracts into the positioning groove 5441. After adjusting to a suitable angle, the positioning bead 5443 extends to the outside of the positioning groove 5441 under the restoring force of the positioning spring 5442 and engages with the wavy groove 5431, thereby fixing the elbow rest 51 and preventing it from rotating at will.

[0049] The arc frame 511 of the elbow support 51 is designed to fit the contour of the human elbow, and the flexible pad 513 in the upper support groove 512 can effectively disperse the elbow pressure through the flexible pad 513, provide comfortable support for the operator, and reduce elbow fatigue caused by long-term operation. During the entire operation process, the operator can flexibly adjust the swing arm 52, the rotating arm 53 and the angle adjustment component 54 according to the actual operation position and his own comfort requirements, so as to accurately fine-tune the arm direction and ensure smooth operation.

[0050] Example 2 A method for using a support frame for improving the elbow comfort of a PICC operator comprises the following steps: S1. Move the support frame to the vicinity of the patient and the operator, and fix the walking base 1 to prevent the support frame from moving during the operation.

[0051] S2. The height of the support platform 3 is adjusted according to the patient's arm height by the pedal height adjustment mechanism 2. The pedal 252 is stepped on. The pedal 252 drives the rocker 251 to rotate around the hinge seat 27. The connecting rod 1 233 connected thereto is pulled downward by the pin in the connection port 2511. The connecting rod 1 233 drives the height adjustment rod 232 to rotate with the hinge seat 1 26 as the fulcrum, so that the height adjustment block 231 moves upward. The adjusting column 22 is pushed to slide upward in the support column 21 by the engaging tooth 1 221. After the pedal 252 is released, the rocker 251 rotates in the opposite direction under the gravity of the counterweight rod 1 253 and the counterweight block 1 254, driving the height adjustment rod 232 to rotate in the opposite direction, so that the height adjustment block 231 moves downward and abuts and engages with the next engaging tooth 1 221. At the same time, the fixed rod 1 241 always abuts with the engaging tooth 2 222 under the action of the counterweight rod 242 and the counterweight block 243 to prevent the adjusting column 22 from sliding down. Repeat this operation several times to adjust the support platform 3 to a suitable height. After the height is adjusted to the right position, release the pedal 252 to fix the height of the adjustment column 22 and the support platform 3.

[0052] Place the patient's arm in the patient arm support mechanism 4, loosen the fixing knob 1 415, slide the upper arm support 1 412 and the upper arm support 2 413 according to the angle of the patient's arm, and tighten the fixing knob 1 415 after adjustment; similarly, loosen the fixing knob 2 424, slide the forearm support 422, and tighten the fixing knob 2 424 after adjustment. The angles of the support part 42- and the overlapping part 41- can be fine-tuned by rotating the adjustment rod 436, utilizing the meshing of the outer spur gear 4351 and the inner spur gear sleeve 4361 and the function of the damping shaft 435.

[0053] S3. The operator rotates the swing arm 52, the rotating arm 53 and the angle adjustment assembly 54 according to the patient's operating part. Rotating the swing arm 52 can adjust the overall vertical position, rotating the rotating arm 53 can adjust the horizontal position, and in the angle adjustment assembly 54, the supporting block 541 and the up-down flip block 542 can achieve the angle adjustment in the up-down direction, and the universal base 543 and the universal turntable 544 can achieve multi-directional angle fine adjustment. Through these adjustments, the elbow rest 51 is adjusted to a suitable position. When placing the catheter, the elbow is supported on the elbow rest 51 for operation, and the flexible pad 513 on the elbow rest 51 can provide comfortable support.

[0054] S4. During the operation, the operator fine-tunes the direction of the arm through the arm support mechanism according to the operating position. For example, when a more precise operating angle is required, the universal turntable 544 in the angle adjustment component 54 can be adjusted again, and the required angle can be fixed by the engagement of the positioning bead 5443 with the wave-shaped groove 5431. This allows the operator to flexibly respond to various situations, allowing the operator to finely adjust the arm position within a small angle range to ensure that the operating tool reaches the target position accurately.

[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that they can still modify or replace the technical solution of the present invention with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of the present invention.

Claims

1. A support frame for improving the elbow comfort of a PICC operator, characterized in that: The support frame includes a walking base, a foot-operated height adjustment mechanism, a support platform, a patient arm support mechanism and an operator arm support mechanism. The foot-operated height adjustment mechanism is connected to the middle part of the upper side of the walking base, the support platform is connected to the top of the foot-operated height adjustment mechanism, the patient arm support mechanism and the operator arm support mechanism are symmetrically arranged on both sides of the support platform, the patient arm support mechanism includes an overlapping part and a support part connected to both sides of the rotating part, and the operator arm support mechanism includes an elbow rest, a swing arm, a rotating arm and an angle adjustment component.

2. A support frame for improving the elbow comfort of a PICC operator according to claim 1, characterized in that: The foot-operated height adjustment mechanism includes a support column, an adjustment column, a height adjustment assembly, a fixed assembly and a foot-operated assembly. The support column is fixedly connected to the upper side of the walking base, the adjustment column is slidably connected to the inside of the support column, the top of the adjustment column is fixedly connected to the supporting platform, an adjustment port 1 is provided on one side of the upper part of the support column, a plurality of downwardly inclined snap-in teeth 1 are provided on the side of the adjustment column close to the adjustment port 1, the top of the height adjustment assembly passes through the adjustment port 1 and is connected to the snap-in teeth 1, the foot-operated assembly is arranged at the bottom of the height adjustment assembly, an adjustment port 2 is provided on the other side of the upper part of the support column, a plurality of downwardly inclined snap-in teeth 2 are provided on the side of the adjustment column close to the adjustment port 2, and the fixed assembly passes through the adjustment port 2 and is connected to the snap-in teeth 2.

3. A support frame for improving the elbow comfort of a PICC operator according to claim 2, characterized in that: The height adjustment assembly includes a height adjustment block, a height adjustment rod and a connecting rod. The outer side of the adjustment port is fixedly connected to a hinge seat. The middle part of the hinge seat is hinged to the middle part of the height adjustment rod through a pin shaft. One end of the height adjustment rod located inside the hinge seat is hinged to the connecting part of the height adjustment block. One end of the height adjustment rod extending out of the outer side of the hinge seat is hinged to the top of the connecting rod. The clamping part of the height adjustment block passes through the adjustment port and is abutted against a clamping tooth. The clamping part of the height adjustment block is also provided with a handle extending to the outside.

4. A support frame for improving the elbow comfort of a PICC operator according to claim 3, characterized in that: The pedal assembly includes a rocker, a pedal, a counterweight rod and a counterweight block. A support column is located below the hinge seat 1 and is provided with a hinge seat 2. The middle part of the hinge seat 2 is hinged to one end of the rocker through a pin shaft, and the other end of the rocker is fixedly connected to the pedal. A connecting port is provided on the side of the rocker close to the hinge seat 2, and the connecting port is hinged to the bottom of the connecting rod 1 through a pin shaft. The side of the rocker close to the connecting port is fixedly connected to the counterweight block 1 through the counterweight rod 1.

5. A support frame for improving the elbow comfort of a PICC operator according to claim 4, characterized in that: The fixing assembly includes a fixing rod, a counterweight rod 2 and a counterweight block 2. The outer side of the adjusting port 2 is fixedly connected with an articulated seat 3. The middle part of the articulated seat 3 is connected to the fixing rod through a pin shaft. One end of the fixing rod extends into the adjusting port 2 and is abutted against the engaging tooth 2. The other end of the fixing rod is provided with a handle 2 extending to the outside. One side of the middle part of the fixing rod is fixedly connected to the counterweight block 2 through the counterweight rod 2.

6. A support frame for improving elbow comfort of a PICC operator according to claim 1, characterized in that: The overlapping part comprises a length adjustment shaft 1, an upper arm support 1 and an upper arm support 2, the bottoms of the upper arm support 1 and the upper arm support 2 are fixedly connected with a shaft sleeve 1, a set of shaft sleeves is arranged on the length adjustment shaft 1 and is slidably connected with the length adjustment shaft 1, and a fixed knob 1 is arranged on one side of the shaft sleeve 1; The supporting part comprises a length adjustment shaft 2 and a forearm support, the bottom of the forearm support is fixedly connected with a shaft sleeve 2, the shaft sleeve 2 is sleeved on the length adjustment shaft 2 and slidably connected with the length adjustment shaft 2, and a fixed knob 2 is provided on one side of the shaft sleeve 2.

7. A support frame for improving the elbow comfort of a PICC operator according to claim 6, characterized in that: The rotating part includes a rotating shaft 1 and a rotating shaft 2 which are symmetrically arranged. One end of the rotating shaft 1 is fixedly connected to the length adjustment shaft 1 through a fixed plate 1, and one end of the rotating shaft 2 is fixedly connected to the length adjustment shaft 2 through a fixed plate 2. The other end of the rotating shaft 1 and the other end of the rotating shaft 2 are both hinged to the damping shaft. The middle part of the damping shaft is connected to one end of the rotating adjustment rod, and the other end of the rotating adjustment rod is fixedly connected to the fixed plate 1.

8. A support frame for improving the elbow comfort of a PICC operator according to claim 7, characterized in that: The elbow support includes an arc frame, a support groove is provided on the upper side of the arc frame, a flexible pad is bonded in the support groove, both side edges of the flexible pad extend to the inner edge of the support groove, and the length is consistent with the length of the support groove, and the flexible pad is one of a sponge pad, a silicone pad, a rubber pad and a latex air cushion.

9. A support frame for improving elbow comfort of a PICC operator according to claim 8, characterized in that: The bottom of the elbow rest is connected to the angle adjustment component, the angle adjustment component is rotatably connected to one end of the rotating arm, the other end of the rotating arm is rotatably connected to one side of the connecting piece, the other side of the connecting piece is rotatably connected to the top of the rotating arm, the bottom of the swing arm is hinged to the fastener, the fastener is sleeved on the fixed rod, and the bottom of the fixed rod is fixedly connected to the support platform through the fixed chassis.

10. A method for using the support frame for improving the elbow comfort of a PICC operator according to any one of claims 1 to 9, characterized in that: The following steps are included: S1. Move the support frame to the vicinity of the patient and the operator, and fix the walking base; S2. Adjust the height of the support platform according to the height of the patient's arm through the foot-operated height adjustment mechanism, place the patient's arm into the patient's arm support mechanism, and adjust the positions of the overlapping portion and the support portion according to the angle at which the patient's arm is raised; S3. The operator rotates the swing arm, rotating arm and angle adjustment assembly according to the patient's operating part, so as to adjust the elbow support to a suitable position. When inserting the tube, the operator places the elbow on the elbow support for operation; S4. During the operation, the operator fine-tunes the direction of the arm through the arm support mechanism according to the operation position.

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