CN110664495A - Radial artery puncture fixator - Google Patents

Abstract

The invention belongs to the technical field of medical devices, in particular to a radial artery puncture fixer, comprising an arm support plate, and a circular arc support frame is detachably connected to the arm support plate; A pair of guide cylinders; the guide cylinders are both slidably connected with a fixed sliding column, and the circular arc plate is rotatably connected with a power fixed worm that makes the fixed sliding column slide in the guide cylinder; the fixed sliding column is provided with a pressing plate, and the fixed sliding column is in When the guide cylinder slides up, it can drive the pressing plate to rotate on the fixed sliding column; the circular arc plate is rotatably connected with an active control worm that controls the rotation of the pressing plate on the fixed sliding column; the circular arc plate is rotated and connected with a control fixed sliding column on the guide The first transmission worm of the sliding distance in the cylinder; the arc support frame of the present invention can be disassembled from the arm support plate, and the patient will be easily removed after the puncture; Automatically adjust the angle, which is convenient to fix the arms of different patients.

Description

Radial artery puncture fixator

technical field

The invention belongs to the technical field of medical devices, in particular to a radial artery puncture fixer.

Background technique

The radial artery is the most commonly used arterial puncture site. The radial artery is located on the inner side of the radial head in the anterior carpal region. Although the radial artery has a small lumen and a relatively weak pulsation, it is very superficial and easy to touch. It is easy to operate, safe, and easy to expose. It is the most commonly used site for blood collection due to the limitation of position and operation site, and it is not easy to cause accidental entry into veins and deep nerves. Radial artery puncture is suitable for complex and major operations, requiring continuous monitoring of blood pressure changes, patients with unstable hemodynamics, and patients during surgery. Patients who need blood dilution and controlled blood pressure reduction, etc. When puncturing the patient, the patient's palm should face upward, and the wrist should be higher than the palm. Because the radial artery has a thin vessel, and the puncture is more painful, it is necessary to Fix the patient's arm to prevent the doctor from shaking the arm of the patient when puncturing the patient, and the doctor cannot puncture the patient, and will puncture other parts of the patient; at present, the existing puncture arm fixator can only For some patients, it is troublesome to remove the fixator after puncturing the patient, and the medical staff can only simply fix the patient's arm when puncturing the patient, which cannot effectively prevent the patient's wrist from moving, which is easy to cause. The failure of puncture not only increases the pain of the patient, but also increases the work intensity of the medical staff.

SUMMARY OF THE INVENTION

In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a radial artery puncture fixer, which effectively solves the problem that the fixator can only be used for some patients, it is troublesome to disassemble the fixator after puncturing the patient, and the medical staff When puncturing a patient, only a simple fixation of the patient's arm can be performed, which cannot effectively prevent the patient's wrist from moving, which can easily cause puncture failure and increase the patient's pain.

In order to achieve the above object, the present invention adopts the following technical solutions: the radial artery puncture fixator includes an arm support plate, and the arm support plate is detachably connected with an arc support frame; the lower end of the arm support plate is provided with a rotation fixing device; It is characterized in that: the circular arc support frame includes a circular arc plate and a guide cylinder that is symmetrically fixed on the circular arc plate; each guide cylinder is slidably connected with a fixed sliding column, and the circular arc plate is rotatably connected with a fixed sliding column. The power fixing worm is connected with a main power transmission structure that makes the fixed sliding column slide in the guide cylinder; the fixed sliding column is provided with a pressing plate for pressing and fixing the patient's arm, and the fixed sliding column is provided with a pressing plate for pressing and fixing the patient's arm. An adjustment structure matched with the pressing plate is arranged in the column, and the main power transmission structure drives the fixed sliding column to slide on the guide cylinder while providing power for the regulating structure, so that the regulating structure drives the pressing plate to rotate on the fixed sliding column; The arc plate is rotatably connected with an active control worm, and the active control worm is connected with a control adjustment structure that can control the rotation and non-rotation of the pressing plate on the fixed spool; the arc plate is rotatably connected with a first transmission Worm, the first transmission worm is connected with a limit structure that can control the sliding distance of the fixed spool in the guide cylinder, and the main power transmission structure drives the fixed spool to slide on the guide cylinder while providing power for the limit structure .

Compared with the prior art, the beneficial effects of the present invention are:

1. The arc support frame of the present invention can be disassembled from the arm support plate, which is convenient for the patient to remove the present invention after puncturing, and does not require the patient's arm to lift, to avoid inconvenient movement after the puncture, and when raising the arm, Pain from the wound.

2. When the fixed spool of the present invention is carrying the pressing plate to fix the patient's arm, the angle can be automatically adjusted by adjusting the structural pressing plate, which is convenient for fixing the arms of different patients, and at the same time, the fixation is more firm, which improves the present invention. convenience.

3. The present invention can control the rotation of the pressing plate, and at the same time, when the first adjusting bevel gear and the second adjusting bevel gear are separated from each other, the locking structure can prevent the free rotation of the pressing plate, which improves the functional diversity of the present invention and the safety.

4. When using the present invention, adjusting the angle between the limit pin and the limit jack can control the sliding distance of the fixed sliding column on the guide cylinder, and prevent the pressing plate from excessively pressing the arm of the patient with unclear consciousness. The safety of the present invention is improved.

Description of drawings

Fig. 1 is the axonometric view of the present invention;

Fig. 2 is the schematic diagram of the arm fixing first active power structure of the present invention;

FIG. 3 is a schematic diagram of the second active power structure for arm fixing according to the present invention;

4 is a schematic diagram of a pressing plate adjustment transmission structure of the present invention;

5 is a schematic diagram of the split structure of the pressing plate rotation control and locking according to the present invention;

6 is a partial cross-sectional view of the pressing plate rotation control and locking of the present invention;

FIG. 7 is a schematic diagram of the limit transmission structure of the present invention;

8 is a schematic diagram of a partially enlarged structure of the limit transmission structure of the present invention;

9 is a schematic diagram of the palm fixing structure of the present invention;

In the figure, 1, the arm support plate, 2, the arc support frame, 3, the arm fixing part, 301, the power fixed worm, 302, the power fixed worm gear, 303, the first driven fixed pulley, 304, the first fixed worm gear , 305, the second fixed worm gear, 306, the fixed gear, 307, the fixed rack, 308, the pressing plate, 320, the first transmission worm, 321, the first transmission worm gear, 322, the first driven pulley, 323, the connection Shank, 340, Limiting Power Rack, 341, Limiting Power Gear, 342, Limiting Driven Bevel Gear, 343, Limiting Worm Gear, 344, Limiting Driven Pulley, 345, Second Limiting Gear, 360 , Adjustment Rack, 361, Driven Adjustment Gear, 362, Active Adjustment Pulley, 363, Driven Adjustment Pulley, 364, Driven Adjustment Bevel Gear, 365, First Adjustment Gear, 366, Second Adjustment Gear, 367 , The second adjusting bevel gear, 368, the second connecting cylinder, 369, the connecting rod, 370, the connecting plate, 371, the guide locking slide, 372, the guide locking slide pin, 373, the limit plate, 380, the active control Worm, 381, Active control worm gear, 382, First control rotation column, 383, Second control rotation column, 4, Adjustment rotation shaft, 5, Limit support plate, 6, Fixed adjustment seat, 7, Fixed latch, 8, Upper support column, 9, lower support column, 10, positioning column, 11, pressing handle, 12, guide cylinder, 13, fixed sliding column, 14, pressing worm, 15, rotating handle, 16, pressing screw.

Detailed ways

The radial artery puncture fixator, as shown in Figures 1-9, includes an arm support plate 1, on which a circular arc support frame 2 is detachably connected; the lower end of the arm support plate 1 is provided with a rotation fixing device; It is characterized in that: the arc support frame 2 includes a circular arc plate and a guide cylinder 12 which are symmetrically fixed on the arc plate; each guide cylinder 12 is slidably connected with a fixed sliding column 13, A power fixed worm 301 is rotatably connected to the upper part, and the power fixed worm 301 is connected with a main power transmission structure that makes the fixed spool 13 slide in the guide cylinder 12; A fixed pressing plate 308, the fixed sliding column 13 is provided with an adjustment structure matched with the pressing plate 308, and the main power transmission structure drives the fixed sliding column 13 to slide on the guide cylinder 12 while providing power for the regulating structure, The adjustment structure drives the pressing plate 308 to rotate on the fixed spool 13; the arc plate is rotatably connected with an active control worm 380, and the active control worm 380 is connected with a control that can control the pressing plate 308 to rotate on the fixed spool 13 and a non-rotating control and adjustment structure; the arc plate is rotatably connected with a first transmission worm 320, and the first transmission worm 320 is connected with a limit structure that can control the sliding distance of the fixed sliding column 13 in the guide cylinder 12 , the main power transmission structure drives the fixed sliding column 13 to slide on the guide cylinder 12 while providing power for the limiting structure.

As shown in Figure 1, when medical staff use the present invention, first use a rotary fixing device to fix the present invention on the bed, and then adjust the position of the arm support plate 1 according to the position of the patient's arm. After the position of the arm support plate 1 is adjusted Put the patient's arm on the arm support plate 1, then fix the arc support frame 2 on the arm support plate 1, then firstly rotate the first transmission worm 320 to adjust the sliding distance of the fixed spool 13 in the guide cylinder 12; then The rotating power fixed worm 301 makes the fixed spool 13 slide along the guide cylinder 12 through the main power transmission structure, and the fixed spool 13 drives the pressing plate 308 to fix the patient's arm; when the pressing plate 308 is not required for adjustment, the medical staff can rotate Actively control the worm 380, and the active control worm 380 can control the rotation of the pressing plate 308 through the control and adjustment structure; when the present invention is in use, when the fixed spool 13 drives the pressing plate 308 to slide along the guide cylinder 12, the pressing plate 308 can be automatically adjusted by the adjustment structure. Adjusting the angle can be adjusted according to the thickness of different patients' arms, all of which can well press the patient's arm, improve the stability of the present invention, and the present invention can also be used by more people; the present invention adopts the limit structure The sliding distance of the fixed sliding column 13 can be controlled, which is more convenient for patients who are unconscious, and can prevent the pressing plate 308 from pressing the patient's arm too tightly, thereby improving the safety of the present invention; the arc support frame 2 of the present invention can It is removed from the arm support plate 1, which is convenient for the patient to remove the present invention after puncturing, and does not require the patient's arm to be lifted, so as to avoid inconvenient movement after the puncture and cause pain in the wound when the arm is lifted.

The main power transmission structure includes a pair of power fixed worm gears (302) meshing with the power fixed worm (301), the power fixed worm gears (302) are all rotatably connected with the circular arc plate, and the power fixed worm gear (302) Symmetrically arranged; the power fixed worm gear 302 is coaxially fixed with a first active fixed drive, and the circular arc plate is rotatably connected with a first driven fixed pulley 303 matched with the first active fixed pulley, The first driven fixed pulley 303 is coaxially fixed with a first fixed worm, the arc plate is rotatably connected with a second fixed worm, and the second fixed worm is coaxially fixed with the first fixed worm. A first fixed worm gear 304 engaged with a fixed worm, the guide cylinder 12 is rotatably connected with a second fixed worm gear 305 engaged with the second fixed worm, and the guide cylinder 12 is rotatably connected with the second fixed worm gear 305 The fixed gear 306 is fixed coaxially, and the fixed sliding column 13 is provided with a fixed rack 307 meshed with the fixed gear 306 .

As shown in Figure 2 and Figure 4, when the patient's arm is placed on the lower end of the arc support frame 2, the medical staff rotates the power fixing worm 301, and the power fixing worm 301 drives the two power fixing worm gears 302 to rotate at the same time, and the two power fixing worm gears rotate. 302 respectively drives the first active fixed pulley to rotate, the two first active fixed pulleys simultaneously drive the two first driven fixed pulleys 303 to rotate, and the two first driven fixed pulleys 303 respectively drive the first fixed worm to rotate , the two first fixed worms respectively drive the first fixed worm wheel 304 to rotate, the two first fixed worm wheels 304 respectively drive the second fixed worm to rotate, the second second fixed worms respectively drive the second fixed worm wheel 305 to rotate, the two The two fixed worm gears 305 respectively drive the fixed gear 306 to rotate, and the two fixed gears 306 respectively drive the fixed spool 13 through the fixed rack 307 to slide on the guide cylinder 12 with the pressing plate 308 to fix the patient's arm. The present invention can conveniently Fixing the patient's arm improves the convenience of the present invention.

The adjustment structure includes an adjustment rack 360 provided on the guide cylinder 12 , an active adjustment gear meshed with the adjustment rack 360 is rotatably connected to the fixed sliding column 13 , and the fixed sliding column 13 is rotatably connected to the active adjustment gear. A driven adjustment gear 361 meshing with the adjustment gear; an active adjustment pulley 362 is coaxially fixed on the driven adjustment gear 361 , and a driven adjustment pulley 362 is rotatably connected to the fixed spool 13 . A driving adjusting pulley 363; an active adjusting bevel gear is coaxially fixed on the driven adjusting pulley 363, and a driven adjusting bevel gear 364 meshing with the active adjusting bevel gear is rotatably connected in the fixed spool 13, A first adjusting gear 365 is coaxially fixed on the driven adjusting bevel gear 364, and a second adjusting gear 366 meshing with the first adjusting gear 365 is rotatably connected to the fixed spool 13; the second adjusting The lower end of the gear 366 is coaxially fixed with a first adjusting bevel gear, and an angle adjusting mechanism matched with the pressing plate 308 is connected to the first adjusting bevel gear.

As shown in FIGS. 2 and 4 , when the fixed spool 13 slides on the guide cylinder 12 , the active adjustment gear on the fixed spool 13 rotates through the adjustment rack 360 , the active adjustment gear drives the driven adjustment gear 361 to rotate, and the driven adjustment gear 361 rotates. The adjusting gear 361 drives the active adjusting pulley 362 to rotate, the active adjusting pulley 362 drives the driven adjusting pulley 363, the driven adjusting pulley 363 drives the active adjusting bevel gear to rotate, and the active adjusting bevel gear drives the driven adjusting bevel gear 364 to rotate, The driven adjusting bevel gear 364 drives the first adjusting gear 365 to rotate, the first adjusting gear 365 drives the second adjusting gear 366 to rotate, the second adjusting gear 366 drives the first adjusting bevel gear to rotate, and the first adjusting bevel gear drives the angle adjusting mechanism Adjust the pressing plate 308; when the fixed spool 13 carries the pressing plate 308 to fix the patient's arm, for a patient with a thin arm, the fixed sled 13 slides on the guide cylinder 12 for a longer distance, and the pressing plate 308 The rotation angle of the device is large, which is convenient for pressing the arms of different patients, and at the same time, the pressing is more firm, which improves the convenience of the present invention.

The angle adjustment mechanism includes an adjustment rotating shaft 4 rotatably connected to the lower end of the fixed sliding column 13, and the pressing plate 308 is fixedly connected with the adjustment rotating shaft 4; One end of the connecting cylinder is fixed with a second adjusting bevel gear 367 meshing with the first adjusting bevel gear. The first adjusting bevel gear and the second adjusting bevel gear 367 can be separated from each other, and the second adjusting bevel gear 367 is on the A limit slide rod is provided, and a limit slide hole matched with the limit rod is arranged on the adjustment rotating shaft 4; a first spring matched with the second adjustment bevel gear 367 is sleeved on the adjustment rotation shaft 4 , one end of the first spring is fixedly connected with the fixed sliding column 13; the end of the first connecting cylinder away from the second adjusting bevel gear 367 is fixedly connected to the limiting circular plate; the first connecting cylinder is connected with the control adjustment structure ; A locking structure is connected to the first connecting cylinder.

As shown in FIGS. 4, 5 and 6, when the fixed spool 13 slides on the guide cylinder 12, when the first adjusting bevel gear and the second adjusting bevel gear 367 mesh with each other, the first adjusting bevel gear drives the second adjusting bevel gear The bevel gear 367 rotates, and the second adjusting bevel gear 367 drives the adjusting rotating shaft 4 to rotate through the limit slide rod, and the adjusting rotating shaft 4 drives the pressing plate 308 to rotate; when the pressing plate 308 does not need to be adjusted, the medical staff can use the control adjustment The structure separates the first adjusting bevel gear and the second adjusting bevel gear 367, and does not adjust the angle of the pressing plate 308; the reverse side can automatically adjust the angle of the pressing plate 308, which is more convenient to use and improves the convenience of the present invention.

The control and adjustment structure includes an active control worm gear 381 engaged with the active control worm 380 , a first control rotation column 382 is rotatably connected to the fixed spool 13 , and the active control worm wheel 381 is fixed to the first control rotation column 382 . Then, the first control rotating column 382 is provided with a first thread and a first gear; the fixed sliding column 13 is slidably connected with a second control rotating column 383 matched with the first control rotating column 382. The second control rotation column 383 is provided with a second thread matched with the first thread and a second gear matched with the first gear; the second control rotation column 383 is provided with a stopper circular plate. Limiting circular hole; the first thread is left-handed, and the second thread is right-handed.

As shown in Figure 4, Figure 5 and Figure 6, when the medical staff uses the control adjustment structure, the medical staff rotates the active control worm 380, the active control worm 380 drives the active control worm wheel 381 to rotate, and the active control worm wheel 381 drives the first control rotating column 382 rotates, the first control rotating column 382 drives the first gear and the first thread to rotate, the first thread cooperates with the second thread and the second gear on the second control rotating column 383 to drive the second control rotating column 383 to slide, and the second control The rotating column 383 pulls the limiting circular plate to move through the limiting circular hole, and the limiting circular plate pulls the second adjusting bevel gear 367 to separate from the first adjusting bevel gear through the first connecting cylinder; Both ends are provided with sliding keys, which prevent the rotation of the second control rotating column 383; preferably, the transmission ratio of the first gear and the second gear of the present invention is 1/1; the present invention can control the rotation of the pressing plate 308, and at the same time When the first adjusting bevel gear and the second adjusting bevel gear 367 are separated from each other, the locking structure can prevent the pressing plate 308 from rotating freely, which improves the functional diversity of the present invention and the safety of the present invention.

The thickness of the first gear is smaller than the thickness of the second gear; the length of the first thread is smaller than the length of the second thread.

As shown in FIG. 6 , in the present invention, the thickness of the first gear is smaller than that of the second gear; the length of the first thread is smaller than the length of the second thread, which is convenient to control the sliding of the second control rotating column 383 .

The locking structure includes a second connecting cylinder 368 coaxially fixed with the second adjusting bevel gear 367 , a connecting rod 369 is rotatably connected to the second connecting cylinder 368 , and the connecting rod 369 is far from the second connecting cylinder 368 A connecting plate 370 is fixedly connected to one end of the connecting plate 370, and the connecting plate 370 is slidably connected to the fixed sliding column 13; The guide locking slide pin 372, the guide locking slide cylinder 371 is fixed with a second spring, and the second spring is fixedly connected with the guide locking slide pin 372; the adjusting rotation shaft 4 is fixedly connected with a limit plate 373 , the limiting plate 373 is evenly distributed with locking circular holes matched with the guide locking sliding pins 372 .

As shown in FIG. 5 and FIG. 6 , when the medical staff uses the present invention, when the first adjusting bevel gear and the second adjusting bevel gear 367 are separated from each other, the second adjusting bevel gear 367 pulls the second connecting cylinder 368 to move, and the second adjusting bevel gear 367 moves. The connecting cylinder 368 pulls the connecting rod 369 to move, the connecting rod 369 pulls the connecting plate 370 to slide and gradually approaches the fixed spool 13, the connecting plate 370 drives the guide locking slide 371 to move, and the guide locking slide 371 drives the second spring and the guide locking The sliding pin 372 is gradually approaching the limiting plate 373. When the locking circular hole on the limiting plate 373 corresponds to the guiding locking sliding pin 372, the guiding locking sliding pin 372 is inserted into the locking circular hole to prevent the pressing plate 308 from rotating. ; When the locking circular hole on the limit plate 373 and the guide locking slide pin 372 do not correspond directly, the guide locking slide pin 372 will be on the limit plate 373, when the pressing plate 308 rotates a little angle, in the Under the elastic force of the second spring, the guide locking slide pin 372 will directly enter the locking circular hole to prevent the pressing plate 308 from rotating; in the present invention, after the first adjusting bevel gear and the second adjusting bevel gear 367 are separated from each other, the The pressing plate 308 is locked to prevent the pressing plate 308 from continuing to rotate, thereby improving the stability of the present invention.

The circular arc plate is rotatably connected with a pair of symmetrical first transmission worm gears 321, the first transmission worm gears 321 are all meshed with the first transmission worm 320, and the first transmission worm gears 321 are coaxially fixed with the first transmission worm gear 321. A driving pulley; a limit support plate 5 is fixedly connected to the arc plate, and a first driven pulley 322 matched with the first driving pulley is rotatably connected to the limit support plate 5. A driven pulley 322 is fixedly connected with a connecting handle 323 , the connecting handle 323 is fixedly connected with a limit guide cylinder 12 , a limit pin is slidably connected to the limit guide cylinder 12 , and a limit pin is sleeved on the limit pin There is a third spring, and a limit plate matched with the third spring is fixedly connected to the limit plug; the limit support plate 5 is provided with a guide arc slideway matched with the limit plug; the A second limit gear 345 is rotatably connected to the limit support plate 5 . The second limit gear 345 is provided with a limit socket matched with a limit pin; the second limit gear 345 is connected with a limit hole. The limit transmission structure matched with the fixed sliding column 13 .

As shown in FIG. 7 and FIG. 8 , the medical staff can adjust the sliding distance of the fixed spool 13 on the guide cylinder 12 as required, the medical staff rotates the first transmission worm 320 , and the first transmission worm 320 drives the two first transmission worm gears 321 Rotating, the two first transmission worm gears 321 respectively drive the first driving pulley to rotate, the two first driving pulleys respectively drive the first driven pulley 322 to rotate, and the first driven pulley 322 drives the connecting handle 323 in the limit The support plate 5 rotates, and the connecting handle 323 drives the limit pin to slide on the guide arc slideway, adjusts the angle between the limit pin and the limit jack, and controls the sliding distance of the fixed slide column 13 on the guide cylinder 12 to prevent The pressing plate 308 excessively presses the arm of the unconscious patient, which improves the safety of the present invention.

The limit transmission structure includes a limit power rack 340 set on the fixed sliding column 13, and a limit power gear 341 matched with the limit power rack 340 is rotatably connected to the guide cylinder 12; the limit A limit drive bevel gear is coaxially fixed on the power gear 341, a limit worm is rotatably connected to the arc plate, and a limit driven bevel gear that meshes with the limit drive bevel gear is fixed on the upper end of the limit worm. 342; a limit worm wheel 343 meshed with the limit worm is rotatably connected on the arc plate, and a limit drive pulley is coaxially fixed on the limit worm wheel 343; the arc plate is rotatably connected with The second limit gear 345 meshes with the first limit gear, and the first limit gear is coaxially fixed with a limit driven pulley 344 matched with the limit drive pulley.

As shown in FIGS. 7 and 8 , when the fixed sliding column 13 slides on the guide cylinder 12 , the limiting power rack 340 on the fixed sliding cylinder drives the limiting power gear 341 to rotate, and the limiting power gear 341 drives the limiting driving cone The gear rotates, the limit drive bevel gear drives the limit driven bevel gear 342 to rotate, the limit driven bevel gear 342 drives the limit worm to rotate, the limit worm drives the limit worm wheel 343 to rotate, and the limit worm wheel 343 drives the limit drive belt The wheel rotates, the limit driving pulley drives the limit driven pulley 344 to rotate, the limit driven pulley 344 drives the first limit gear to rotate, the first limit gear drives the second limit gear 345 to rotate, and the second limit gear rotates. The limit gear 345 drives the limit jack to rotate. When the limit jack and the limit pin correspond to each other, the third spring will insert the limit pin into the limit jack through the limit plate. The present invention is easy to use and can be adjusted The distance that the sliding column 13 slides on the guide cylinder 12 is fixed to prevent the pressing plate 308 from pressing the patient's arm excessively, thereby improving the safety and convenience of the present invention.

The arm support plate 1 is provided with a palm pressing and fixing device, and the palm pressing and fixing device includes a pressing worm wheel rotatably connected on the arm support plate 1, and a pressing worm engaged with the pressing worm wheel is rotatably connected on the arm support plate 1. 14; a rotating handle 15 is fixedly connected to the pressing worm wheel, a pressing screw 16 is rotatably connected to the rotating handle 15, and a pressing handle 11 is screwed on the pressing screw 16, and the pressing handle 11 is connected to the rotating handle 15 sliding connections.

As shown in Figure 1 and Figure 9, when medical staff use the present invention, when puncturing a patient, they need to fix the arm, and the arms of different patients have different sizes; the present invention can rotate the pressing worm 14, press the worm 14 The pressing worm wheel is driven to rotate, the pressing worm wheel drives the rotating handle 15 to rotate, the rotating handle 15 drives the pressing handle 11 to rotate, the pressing handle 11 is aligned with the patient's palm, and then the medical staff turns the pressing screw 16, and the pressing screw 16 drives the pressing handle 11 to move. The rotating handle 15 slides up, and the pressing handle 11 fixes the patient's hand; the palm pressing and fixing device of the present invention can conveniently fix the patient's palm, and can be used for different patients, thereby improving the convenience of the present invention.

The rotary fixing device includes a support base supporting the present invention, a lower support column 9 is fixedly connected to the support base, an upper support column 8 is slidably connected to the lower support column 9, and the lower support column 9 and the support base are slidably connected. There is an electric push rod on it, and the upper telescopic rod of the electric push rod is fixedly connected with the upper support column 8; the upper end of the upper support column 8 is fixed with a fixed adjustment seat 6, and the fixed adjustment seat 6 is provided with a jack , the fixed adjustment base 6 is rotatably connected with a fixed rotating cylinder, and the fixed rotating cylinder is evenly distributed with fixed holes matched with the jacks on the fixed adjustment base 6, and the jacks and the fixed holes are plugged with Fixed plug 7; the arm support plate 1 is provided with a control switch matched with the electric push rod.

Symmetrical positioning columns 10 are evenly distributed on the arm support plate 1 , the arc support frame 2 is provided with positioning holes matched with the positioning columns 10 , and the positioning columns 10 and the arc support frame 2 are provided with locating holes. A positioning hole, in which a positioning pin is inserted.

As shown in Figure 1, when the medical staff uses the present invention, the present invention is placed beside the hospital bed, and the control switch of the electric push rod is pressed to adjust the arm support plate 1 to a suitable height first, and then rotate the arm support plate 1. After rotating the arm support plate 1 to the proper position, insert the fixing pins 7 into the corresponding jacks and fixing holes, then press the control switch of the electric push rod again, and place the end of the support plate away from the pressing handle 11 against the On the hospital bed, then stop pressing the control switch, and place the patient's arm on the support plate. During specific use, the present invention can be appropriately moved according to the length of the patient's arm, so that the patient's palm can be fixed by the pressing handle 11; then choose to use Several arm fixing parts 3 are selected, and the arc support frame 2 is inserted on the positioning column 10 through the positioning hole, and then the positioning pin is inserted into the positioning hole; preferably, the diameter of the positioning hole and the positioning pin of the present invention are the same, The diameter of the positioning jack is the same as the diameter of the positioning column 10; preferably, the electric push rod model selected in the present invention is XTL1000, the output voltage is 24V, the maximum thrust is 1000N, and the propulsion speed is 12mm/s; the present invention can be easily lifted and lowered, and is suitable for For hospital beds of different heights, as shown in FIG. 1 , the front end of the arm support plate 1 of the present invention is thicker and the rear end is thinner, and the thinner part can be directly supported on the hospital bed, which is more convenient to use and improves the convenience of the present invention After puncturing the patient, the positioning pin can be pulled out, the arc support frame 2 can be directly removed from the arm support plate 1, the palm of the hand can be loosened, and then the arm support plate of the present invention can be slowly removed. 1Slide off the lower end of the patient's arm.

The working process of the present invention is:

When medical staff use the present invention, place the present invention beside the hospital bed, press the control switch of the electric push rod, first adjust the arm support plate 1 to a suitable height, then rotate the arm support plate 1, and turn the arm support plate 1 After reaching the appropriate position, insert the fixing pin 7 into the corresponding jack and fixing hole, then press the control switch of the electric push rod again, and stick the end of the support plate away from the pressing handle 11 on the bed, and then stop pressing. Move the control switch to place the patient's arm on the support plate. During specific use, the present invention can be appropriately moved according to the length of the patient's arm, so that the patient's palm can be fixed by the pressing handle 11; The arc support frame 2 is inserted on the positioning column 10 through the positioning hole, and then the positioning pin is inserted into the positioning hole to fix the arc support frame 2 .

When medical staff use the present invention, when fixing the patient's arm, especially for patients with weak consciousness, the medical staff can rotate the first transmission worm 320 to control the sliding distance of the fixed spool 13 on the guide cylinder 12; The medical staff rotates the first transmission worm 320, the first transmission worm 320 drives the two first transmission worm wheels 321 to rotate, the two first transmission worm wheels 321 respectively drive the first driving pulley to rotate, and the two first driving pulleys respectively drive the rotation The first driven pulley 322 rotates, the first driven pulley 322 drives the connecting handle 323 to rotate on the limit support plate 5, and the connecting handle 323 drives the limit pin to slide on the guide arc slideway, and adjusts the limit pin and the limit pin. After the adjustment is completed, the medical staff can rotate the power fixed worm 301, the fixed slide 13 slides on the guide cylinder 12, and the limit power rack 340 on the fixed slide cylinder drives the limit power gear 341 to rotate The limiting power gear 341 drives the limiting driving bevel gear to rotate, the limiting driving bevel gear drives the limiting driven bevel gear 342 to rotate, the limiting driven bevel gear 342 drives the limiting worm to rotate, and the limiting worm drives the limiting worm gear 343 Rotating, the limit worm wheel 343 drives the limit drive pulley to rotate, the limit drive pulley drives the limit driven pulley 344 to rotate, the limit driven pulley 344 drives the first limit gear to rotate, and the first limit gear drives The second limit gear 345 rotates, and the second limit gear 345 drives the limit jack to rotate. When the limit jack and the limit pin correspond to each other, the third spring will insert the limit pin into the limit through the limit plate Inside the socket, the fixed spool 13 will not be able to slide on the guide cylinder 12 .

When the medical staff rotates the power fixed worm 301, the power fixed worm 301 simultaneously drives the two power fixed worm gears 302 to rotate, the two power fixed worm gears 302 respectively drive the first active fixed pulley to rotate, and the two first active fixed pulleys simultaneously drive the rotation. The two first driven fixed pulleys 303 rotate, the two first driven fixed pulleys 303 respectively drive the first fixed worm to rotate, the two first fixed worms respectively drive the first fixed worm wheel 304 to rotate, and the two first fixed worms respectively drive the first fixed worm wheel 304 to rotate. The worm wheel 304 drives the second fixed worm to rotate respectively, the second second fixed worm drives the second fixed worm wheel 305 to rotate respectively, the two second fixed worm wheels 305 respectively drive the fixed gear 306 to rotate, and the two fixed gears 306 pass through the fixed rack 307 The fixed spool 13 is respectively driven to slide on the guide cylinder 12 with the pressing plate 308 to fix the patient's arm; while the fixed spool 13 slides on the guide cylinder 12, the active adjustment gear on the fixed spool 13 passes through the adjusting rack 360 rotates, the active adjustment gear drives the driven adjustment gear 361 to rotate, the driven adjustment gear 361 drives the active adjustment pulley 362 to rotate, the active adjustment pulley 362 drives the driven adjustment pulley 363, and the driven adjustment pulley 363 drives the active adjustment cone The gear rotates, the active adjusting bevel gear drives the driven adjusting bevel gear 364 to rotate, the driven adjusting bevel gear 364 drives the first adjusting gear 365 to rotate, the first adjusting gear 365 drives the second adjusting gear 366 to rotate, and the second adjusting gear 366 drives the first adjusting gear 366 to rotate. Once the adjusting bevel gear rotates, the first adjusting bevel gear drives the second adjusting bevel gear 367 to rotate, the second adjusting bevel gear 367 drives the adjusting rotating shaft 4 to rotate through the limit sliding rod, and the adjusting rotating shaft 4 drives the pressing plate 308 to rotate, and gradually Get close to the patient's arm and apply pressure to the patient's arm.

When using the present invention, the active control worm 380 can be rotated as required to separate the second adjustment bevel gear 367 from the first adjustment bevel gear, the active control worm 380 drives the active control worm wheel 381 to rotate, and the active control worm wheel 381 drives the first control rotating column 382 rotates, the first control rotating column 382 drives the first gear and the first thread to rotate, the first thread cooperates with the second thread and the second gear on the second control rotating column 383 to drive the second control rotating column 383 to slide, and the second control The rotating column 383 pulls the limiting circular plate to move through the limiting circular hole, and the limiting circular plate pulls the second adjusting bevel gear 367 to separate from the first adjusting bevel gear through the first connecting cylinder; when the first adjusting bevel gear and the second adjusting bevel When the gear 367 is separated, the second adjusting bevel gear 367 pulls the second connecting cylinder 368 to move, the second connecting cylinder 368 pulls the connecting rod 369 to move, the connecting rod 369 pulls the connecting plate 370 to slide and gradually approaches the fixed spool 13, and the connecting plate 370 drives the guide The locking slide 371 moves, and the guide locking slide 371 drives the second spring and the guide locking slide pin 372 to gradually approach the limit plate 373. When the locking hole on the limit plate 373 corresponds to the guide locking slide pin 372 When the guide locking slide pin 372 is inserted into the locking circular hole to prevent the pressing plate 308 from rotating; when the locking circular hole on the limit plate 373 and the guiding locking slide pin 372 do not correspond directly, the guiding locking slide The pin 372 will rest on the limit plate 373. When the pressing plate 308 rotates a little angle, the guide locking slide pin 372 will directly enter the locking circular hole under the elastic force of the second spring to prevent the pressing plate 308 from rotating, and then continue Rotating the power fixing worm 301 causes the pressing plate 308 to press the patient's arm.

Claims (10)

1. A radial artery puncture fixer, comprising an arm support plate (1), on which a circular arc support frame (2) is detachably connected; the lower end of the arm support plate (1) is provided with a rotating fixation The device is characterized in that: the circular arc support frame (2) comprises a circular arc plate and a guide cylinder (12) symmetrically fixed on the circular arc plate; each guide cylinder (12) is slidably connected with a fixed sliding A column (13), a power fixed worm (301) is rotatably connected to the circular arc plate, and the power fixed worm (301) is connected with the active power to make the fixed sliding column (13) slide in the guide cylinder (12) Transmission structure; a pressing plate (308) for pressing and fixing the patient's arm is arranged on the fixed sliding column (13), and an adjusting structure matched with the pressing plate (308) is arranged in the fixed sliding column (13) , the main power transmission structure drives the fixed spool (13) to slide on the guide cylinder (12) while providing power for the adjustment structure, so that the adjustment structure drives the pressing plate (308) to rotate on the fixed spool (13); An active control worm (380) is rotatably connected to the arc plate, and a control adjustment structure that can control the rotation and non-rotation of the pressing plate (308) on the fixed spool (13) is connected to the active control worm (380); A first transmission worm (320) is rotatably connected to the arc plate, and a limit structure capable of controlling the sliding distance of the fixed sliding column (13) in the guide cylinder (12) is connected to the first transmission worm (320). The main power transmission structure drives the fixed sliding column (13) to slide on the guide cylinder (12) while providing power for the limiting structure. 2. The radial artery puncture fixator according to claim 1, wherein the main power transmission structure comprises a pair of power fixed worm gears (302) engaged with the power fixed worm (301), and the power fixed worm gear (302) is rotatably connected with the circular arc plate, the power fixed worm gear (302) is symmetrically arranged; a first active fixed pulley is coaxially fixed on the power fixed worm gear (302), and the circular arc plate is rotatably connected There is a first driven fixed pulley (303) matched with the first active fixed pulley, a first fixed worm is coaxially fixed on the first driven fixed pulley (303), and the circular arc plate A second fixed worm is rotatably connected to the top, and a first fixed worm wheel (304) that is engaged with the first fixed worm is coaxially fixed on the second fixed worm. The guide cylinder (12) is rotatably connected with the first fixed worm. A second fixed worm gear (305) in which two fixed worms are meshed, the guide cylinder (12) is rotatably connected with a fixed gear (306) coaxially fixed to the second fixed worm gear (305), and the fixed sliding column ( 13) A fixed rack (307) meshing with the fixed gear (306) is arranged on it. 3. The radial artery puncture fixator according to claim 1, characterized in that: the adjustment structure comprises an adjustment rack (360) provided on the guide cylinder (12), and the fixed spool (13) is rotatably connected There is an active adjustment gear meshing with the adjustment rack (360), and a driven adjustment gear (361) meshed with the active adjustment gear is rotatably connected to the fixed spool (13); the driven adjustment gear (361) ) is coaxially fixed with an active adjustment pulley (362), and a driven adjustment pulley (363) matched with the active adjustment pulley (362) is rotatably connected in the fixed sliding column (13); An active adjustment bevel gear is coaxially fixed on the movable adjustment pulley (363), and a driven adjustment bevel gear (364) meshing with the active adjustment bevel gear is rotatably connected in the fixed spool (13). A first adjusting gear (365) is coaxially fixed on the movable adjusting bevel gear (364), and a second adjusting gear (366) that meshes with the first adjusting gear (365) is rotatably connected to the fixed sliding column (13). ); the lower end of the second adjusting gear (366) is coaxially fixed with a first adjusting bevel gear, and an angle adjusting mechanism matched with the pressing plate (308) is connected to the first adjusting bevel gear. 4 . The radial artery puncture fixator according to claim 3 , wherein the angle adjustment mechanism comprises an adjustment rotating shaft ( 4 ) rotatably connected to the lower end of the fixed spool ( 13 ), and the pressing plate ( 308 ) and The adjusting rotating shaft (4) is fixedly connected; the adjusting rotating shaft (4) is provided with a first connecting cylinder, and one end of the first connecting cylinder is fixedly connected with a second adjusting bevel gear that meshes with the first adjusting bevel gear (367), the first adjusting bevel gear and the second adjusting bevel gear (367) can be separated from each other, the second adjusting bevel gear (367) is provided with a limit sliding rod, and the adjusting rotating shaft (4) is A limit sliding hole matched with the limit rod is provided; the adjusting rotating shaft (4) is sleeved with a first spring matched with the second adjusting bevel gear (367), and one end of the first spring is connected to the second adjusting bevel gear (367). The fixed sliding column (13) is fixedly connected; the end of the first connecting cylinder away from the second adjusting bevel gear (367) is fixedly connected to the limiting circular plate; the first connecting cylinder is connected with the control and adjustment structure; A locking structure is connected on the connecting cylinder. 5. The radial artery puncture fixator according to claim 4, wherein the control and adjustment structure comprises an active control worm wheel (381) engaged with an active control worm (380), and the fixed spool (13) A first control rotating column (382) is rotatably connected to the upper surface, the active control worm gear (381) is fixedly connected with the first control rotating column (382), and the first control rotating column (382) is provided with a first thread and A first gear; a second control rotating column (383) matched with the first control rotating column (382) is slidably connected to the fixed sliding column (13), and the second control rotating column (383) is provided with a a second thread matched with the first thread and a second gear matched with the first gear; the second control rotation column (383) is provided with a limit circular hole matched with the limit circular plate; the The first thread is left-handed, and the second thread is right-handed. 6 . The radial artery puncture fixator according to claim 4 , wherein the locking structure comprises a second connecting cylinder ( 368 ) coaxially fixed with the second adjusting bevel gear ( 367 ). A connecting rod (369) is rotatably connected to the second connecting cylinder (368), and a connecting plate (370) is fixedly connected to the end of the connecting rod (369) away from the second connecting cylinder (368). The fixed slide column (13) is slidably connected; a guide locking slide cylinder (371) is fixedly connected to the connecting plate (370), and a guide locking slide pin (372) is slidably connected to the guide locking slide cylinder (371). ), a second spring is fixedly connected to the guide locking slide cylinder (371), and the second spring is fixedly connected to the guide locking slide pin (372); A plate (373), the limiting plate (373) is evenly distributed with locking circular holes matched with the guide locking sliding pin (372). 7 . The radial artery puncture fixator according to claim 1 , wherein the limiting structure comprises a pair of symmetrical first transmission worm gears ( 321 ) rotatably connected to the circular arc plate, and the first transmission worm gear ( 321 ). 321) is engaged with the first transmission worm (320), and the first driving worm wheel (321) is coaxially fixed with a first driving pulley; the arc plate is fixed with a limit support plate (5), A first driven pulley (322) matched with the first driving pulley is rotatably connected to the limit support plate (5), and a connecting handle (322) is fixed on the first driven pulley (322). 323), a limit guide cylinder (12) is fixedly connected to the connecting handle (323), a limit pin is slidably connected in the limit guide cylinder (12), and a third spring is sleeved on the limit pin, A limit plate matched with a third spring is fixedly connected to the limit plug; the limit support plate (5) is provided with a guide arc slideway matched with the limit plug; the limit support A second limit gear (345) is rotatably connected to the plate (5), and a limit socket matched with a limit pin is arranged on the second limit gear (345); the second limit gear (345) 345) is connected with a limit transmission structure matched with the fixed sliding column (13). 8 . The radial artery puncture fixator according to claim 7 , wherein the limit transmission structure comprises a limit power rack ( 340 ) provided on the fixed spool ( 13 ), the guide cylinder ( 12 ). ) is rotatably connected with a limit power gear (341) matched with a limit power rack (340); a limit drive bevel gear is coaxially fixed on the limit power gear (341), and the circular arc plate The upper rotatable connection with a limit worm, the upper end of the limit worm is fixedly connected with a limit driven bevel gear (342) meshing with the limit drive bevel gear; the circular arc plate is rotatably connected with a limit worm engaged with the limit worm The limit worm gear (343) is fixed on the limit worm gear (343) coaxially with the limit drive pulley; the arc plate is rotatably connected with a first limit gear (345) that meshes with the second limit gear (345). A limit gear, the first limit gear is coaxially fixed with a limit driven pulley (344) matched with the limit drive pulley. 9 . The radial artery puncture fixator according to claim 1 , wherein the arm support plate ( 1 ) is provided with a palm pressing and fixing device, and the palm pressing and fixing device comprises a rotation on the arm support plate ( 1 ). 10 . A connected pressing worm gear, the arm support plate (1) is rotatably connected with a pressing worm (14) engaged with the pressing worm gear; a rotating handle (15) is fixed on the pressing worm gear, and the rotating handle (15) A pressing screw (16) is rotatably connected to the top, a pressing handle (11) is screwed on the pressing screw (16), and the pressing handle (11) is slidably connected with the rotating handle (15). 10 . The radial artery puncture fixator according to claim 1 , wherein symmetrical positioning posts ( 10 ) are evenly distributed on the arm support plate ( 1 ), and the arc support frame ( 2 ) is provided with There is a positioning hole matched with the positioning column (10), the positioning column (10) and the arc support frame (2) are provided with a positioning hole, and a positioning pin is inserted into the positioning hole; the arc support The frame (2) can be disassembled and fixed from the arm support plate (1) through the positioning pins.

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