Drug delivery device for injecting stem cell and gelatin sponge solution into knee joint

Abstract

The invention belongs to the technical field of medical instruments, particularly relates to an administration device for injecting stem cells and a gelatin sponge solution into knee joints, and aims to solve the problems that the existing knee joint administration device often has the problems that the disinfection position of an injection part is inaccurate or the disinfection is insufficient, and the knee joints of patients are infected after injection. In order to solve the problem that the existing medical device has great influence on the health of a patient, according to the scheme, the medical device comprises a bearing plate, a notch is formed in the upper side of the bearing plate, a movable table is slidably connected into the notch, a positioning and disinfecting module is arranged on the movable table, and a stabilizing module is arranged on the positioning and disinfecting module. According to the drug delivery device for injecting the stem cells and the gelatin sponge solution into the knee joint disclosed by the invention, medical personnel can be helped to quickly and accurately position and disinfect the suprapatellar sac injection position of a patient by utilizing the positioning and disinfecting module, so that the medical personnel can obtain a sufficient sterile injection surface when performing knee treatment on the patient; and the risk of infection of a patient is reduced while the treatment effect is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, and in particular to a drug delivery device for injecting a stem cell and gelatin sponge solution into a knee joint. Background Art

[0002] The knee joint is composed of the lower end of the femur, the upper end of the tibia and the patella. It is the largest and most complex joint in the human body and is a trochlear joint. The main ligaments are the patellar ligament, fibular collateral ligament, tibial collateral ligament, oblique ligament, and anterior and posterior cruciate ligaments in the knee joint. The joint capsule of the knee joint is thin and loose, attached to the periphery of each joint surface, and reinforced with ligaments around it to increase the stability of the joint.

[0003] Existing knee joint medication devices often have problems with inaccurate or insufficient disinfection of the injection site before injecting medication into the knee joint, which may cause problems such as knee joint infection in patients after the injection, and have a great impact on the health of patients. Summary of the invention

[0004] The invention discloses a drug delivery device for injecting a stem cell and gelatin sponge solution into a knee joint, aiming to solve the technical problems of insufficient disinfection range and low disinfection degree of the drug delivery device for the knee joint in the background technology.

[0005] The present invention proposes a drug delivery device for injecting a stem cell and gelatin sponge solution into a knee joint, comprising a support plate, a notch being provided on the upper side of the support plate, a movable platform being slidably connected in the notch, and a positioning and disinfection module being arranged on the movable platform, a stabilizing module being arranged on the positioning and disinfection module, and the stabilizing module being located above the positioning and disinfection module, thigh pads and calf pads being fixedly connected on both sides of the support plate away from the positioning and disinfection module, and two symmetrical fabric belts being fixedly connected on the upper sides of the thigh pad and the calf pad, and the same contraction module being arranged on the outside of the two fabric belts on the same side.

[0006] By providing a support plate, a movable table, a thigh pad, a calf pad, a fabric belt, a positioning and disinfection module, a stabilization module and a contraction module, the device can help medical personnel quickly and accurately locate and disinfect the patient's suprapatellar pouch injection position using the positioning and disinfection module, so that medical personnel can obtain a sufficient sterile injection surface when performing knee treatment on the patient, ensuring the treatment effect while reducing the risk of infection for the patient.

[0007] In a preferred solution, the positioning and disinfection module includes two symmetrical support frames, the bottoms of the two support frames are movably connected to the upper side of the movable platform, the ends of the support frames away from the movable platform are fixedly connected to fixed shafts, the opposite sides of the two fixed shafts are respectively fixedly connected to the installation frame 1 and the installation frame 2, and the installation frame 1 and the installation frame 2 are clamped on the opposite sides below, the inner walls of the installation frame 1 and the installation frame 2 are each provided with two symmetrical fine holes, the same pin is arranged in the fine holes, the fixed shaft on the installation frame 1 is provided with a circular hole on the side away from the installation frame 1, a positioning shaft is slidably connected in the circular hole, and a toothed positioning ring is fixedly connected to the outside of the positioning shaft, A fixing piece is arranged on the outside of the toothed clamping ring, and the fixing piece is fixedly connected to the side opposite to the supporting frame on the same side, and a toothed groove is clamped on the fixing piece, and the inner wall of the toothed groove is clamped with the outside of the toothed clamping ring; the installation frame 1 and the installation frame 2 are both provided with cutting grooves, and the same movable plate is slidably connected in the two cutting grooves, and a limiting frame is fixedly connected to the bottom of the movable plate, and two symmetrical arc plates are arranged in the limiting frame, and the two arc plates are respectively fixedly connected to the opposite sides of the installation frame 1 and the installation frame 2, and a narrow opening is arranged on the upper side of the limiting frame, and a positioning rod is slidably connected in the narrow opening, and a spring is fixedly connected to the outside of the positioning rod, and the end of the spring away from the positioning rod is connected to the upper end of the limiting frame. The movable plate is fixedly connected to the side, and insertion holes are provided on the arc-shaped plates, and the outside of the positioning rod is snap-fitted with the insertion hole; the movable plate is provided with a accommodating hole, and an insertion frame is provided below the accommodating hole, and the upper side of the insertion frame is fixedly connected to the bottom of the movable plate, and a connecting ring is fixedly connected to the bottom of the insertion frame, and a switching frame is slidably connected to the outside of the connecting ring, and a closing plate is fixedly connected to the bottom of the switching frame, and an orifice is provided on the closing plate and the connecting ring, and the same sliding block is slidably connected in the orifice, and the bottom of the closing plate is fixedly connected to the accommodating frame, and two symmetrical rectangular grooves are provided on the outside of the accommodating frame, and bosses are slidably connected in the rectangular grooves, and the opposite side of the two bosses is fixedly connected with the same A pressure plate, the outside of which is slidably connected to the inner wall of the accommodating frame; the upper side of the pressure plate is fixedly connected to the bottom of the sliding block, a sterile sponge is arranged in the accommodating frame, the upper side of the sterile sponge fits with the bottom of the pressure plate, and the outside of the switching frame is fixedly connected with two symmetrical convex rafters, the bottoms of the convex rafters are fixedly connected with hydraulic rods, and the output ends of the two hydraulic rods are respectively fixedly connected to the upper sides of the two bosses; a contact ring is movably connected to the bottom of the accommodating frame, a round cotton core is fixedly connected to the bottom of the mounting frame 2, and a gear ring is fixedly connected to the outside of the contact ring, and a motor is fixedly connected to the outside of the accommodating frame, and the output end of the motor is connected to a gear through a coupling, and the gear is meshed with the gear ring.

[0008] By providing a positioning disinfection module, the positioning disinfection module uses a round cotton core and a pressure plate to enable the device to continuously disinfect the patient's injection site over a large area, greatly improving the disinfection rate of the injection site before injection. The closure of the insertion frame by the sliding block also ensures that medical personnel cannot give the patient an early injection before the disinfection operation is completed, ensuring that the patient will not be infected and reducing the occurrence of medical disputes.

[0009] In a preferred scheme, the stabilizing module includes a stabilizing plate, the bottom of the stabilizing plate is fixedly connected to the upper side of the moving plate, the stabilizing plate is located above the accommodating hole, the upper side of the stabilizing plate is provided with four sliding grooves which are equidistantly distributed around the circumference, and the sliding grooves are slidably connected with clamping rods; the upper sides of the clamping rods are fixedly connected with circular shafts, the upper side of the stabilizing plate is movably connected with an adjusting frame, the adjusting frame is provided with four curved grooves which are equidistantly distributed around the circumference, the inner walls of the four curved grooves are respectively slidably connected to the outside of the four circular shafts, and the outside of the adjusting frame is fixedly connected with a lever; the upper side of the stabilizing plate is fixedly connected with a built-in ring, the upper side of the built-in ring is slidably connected to the top inner wall of the adjusting frame, and the inner wall of the built-in ring is fixedly connected with a coil spring, and the end of the coil spring away from the built-in ring is fixedly connected to the inner wall of the adjusting frame.

[0010] By providing a stabilizing module, the stabilizing module uses a coil spring and a clamping rod to enable the device to stably clamp the syringe, so that after the syringe is inserted into the patient's knee, the position can remain unchanged, reducing the occurrence of needle deviation or falling off due to patient movement or doctor's hand shaking.

[0011] In a preferred embodiment, the convergence module includes two symmetrical supports, which are located on the outside of one of the fabric belts on the thigh pad and the calf pad, and the outside of the other fabric belt on the thigh pad and the calf pad is fixedly connected with an adjustment rack. Notches are opened on the upper sides of the supports, and the bottom inner walls of the notches are slidably connected to the outside of the adjustment rack. Round rods are fixedly connected to the inner walls of the notches, and torsion springs are surrounded by the outside of the round rods. One end of the torsion spring is fixedly connected to the outside of the round rod, and the other end is fixedly connected to a clamping block, and the outside of the clamping block is slidably connected to the inner wall of the notch, and the clamping block is clamped on the side opposite to the adjustment rack.

[0012] By providing a focusing module, the focusing module can effectively fix the device on the patient's leg by adjusting the rack and the clamping block, so that the device can obtain a more powerful positioning environment, so that the device can obtain sufficient space and angle when performing injection treatment on the patient's knee, thereby improving the treatment effect of the device on the patient.

[0013] From the above, it can be seen that the drug delivery device for injecting stem cells and gelatin sponge solution into the knee joint provided by the present invention has a positioning and disinfection module that can help medical personnel quickly and accurately locate and disinfect the injection position of the patient's suprapatellar bursa, so that medical personnel can obtain a sufficient sterile injection surface when performing knee treatment on the patient, ensuring the treatment effect while reducing the risk of infection for the patient. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of a drug delivery device for injecting a stem cell and gelatin sponge solution into a knee joint proposed by the present invention; Figure 2 This is a front view structural schematic diagram of a drug delivery device for injecting a stem cell and gelatin sponge solution into a knee joint proposed by the present invention; Figure 3 This is a schematic diagram of the structure of a positioning and disinfection module of a drug delivery device for injecting a stem cell and gelatin sponge solution into a knee joint proposed by the present invention; Figure 4 This is a schematic diagram of the limiting frame and the positioning axis structure of a drug delivery device for injecting a stem cell and gelatin sponge solution into a knee joint proposed by the present invention; Figure 5 This is an exploded schematic diagram of a containing frame structure of a drug delivery device for injecting a stem cell and gelatin sponge solution into a knee joint proposed by the present invention; Figure 6 This is a schematic diagram of the structure of a stable module of a drug delivery device for injecting a stem cell and gelatin sponge solution into a knee joint proposed by the present invention; Figure 7 This is a schematic diagram of the structure of a convergence module of a drug delivery device for injecting a stem cell and gelatin sponge solution into a knee joint proposed by the present invention.

[0015] In the figure: 1, supporting plate; 2, movable table; 3, thigh pad; 4, calf pad; 5, fabric belt; 6, positioning disinfection module; 601, support frame; 602, installation frame 1; 603, installation frame 2; 604, pin; 605, cutting groove; 606, moving plate; 607, receiving hole; 608, limiting frame; 609, positioning rod; 610, spring; 611, arc plate; 612, fixed shaft; 613, locking shaft; 614, fixing piece; 615, toothed groove; 616, toothed locking ring; 617, insertion frame; 618, connecting ring; 619, switching frame; 620, closed Plate; 621, containing frame; 622, rectangular groove; 623, pressure plate; 624, sterile sponge; 625, hydraulic rod; 626, sliding block; 627, gear ring; 628, motor; 629, gear; 630, contact ring; 631, round cotton core; 7, stabilizing module; 701, stabilizing plate; 702, sliding groove; 703, clamping rod; 704, round shaft; 705, adjusting frame; 706, curved groove; 707, built-in ring; 708, coil spring; 709, lever; 8, converging module; 801, support; 802, block; 803, torsion spring; 804, adjusting rack. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0017] The drug delivery device for injecting a stem cell and gelatin sponge solution into a knee joint disclosed by the present invention is mainly used in scenarios where the disinfection range of the drug delivery device for a knee joint is insufficient and the disinfection degree is low.

[0018] Reference Figure 1-7 A drug delivery device for injecting a stem cell and gelatin sponge solution into a knee joint comprises a support plate 1, a notch is provided on the upper side of the support plate 1, a movable platform 2 is slidably connected in the notch, a positioning and disinfection module 6 is arranged on the movable platform 2, a stabilization module 7 is arranged on the positioning and disinfection module 6, and the stabilization module 7 is located above the positioning and disinfection module 6, thigh pads 3 and calf pads 4 are respectively connected by bolts on both sides of the support plate 1 away from the positioning and disinfection module 6, and two symmetrical fabric belts 5 are connected by bolts on the upper sides of the thigh pad 3 and the calf pad 4, and the same constriction module 8 is arranged on the outside of the two fabric belts 5 on the same side.

[0019] Specifically, after placing the patient's thigh and calf on the thigh pad 3 and the calf pad 4 respectively, the converging module 8 is used to fix the legs of the device together, the movable table 2 is moved to just below the patient's knee, and the positioning and disinfection module 6 is wrapped around the knee. The positioning and disinfection module 6 is used to locate and fully disinfect the patient's suprapatellar bursa. After the disinfection is completed, the stabilizing module 7 is used to fix the syringe on the adjusted positioning and disinfection module 6, and the patient is given an injection treatment. The device uses the positioning and disinfection module 6 to help medical personnel quickly and accurately locate and disinfect the injection position of the patient's suprapatellar bursa, so that medical personnel can obtain a sufficient sterile injection surface when treating the patient's knee, thereby ensuring the treatment effect while reducing the risk of infection in the patient.

[0020] Reference Figure 3 , Figure 4 and Figure 5In a preferred embodiment, the positioning and disinfection module 6 includes two symmetrical support frames 601, the bottoms of the two support frames 601 are rotatably connected to the upper side of the movable platform 2 through bearings, and the ends of the support frames 601 away from the movable platform 2 are connected to the fixed shaft 612 by bolts, and the opposite sides of the two fixed shafts 612 are respectively connected to the mounting frame 1 602 and the mounting frame 2 603 by bolts, and the mounting frame 1 602 and the mounting frame 2 603 are located at the opposite side of the bottom and are clamped, and the inner walls of the mounting frame 1 602 and the mounting frame 2 603 are each provided with two symmetrical fine holes, and the same pin 604 is arranged in the fine holes, and the fixed shaft 612 located on the mounting frame 1 602 is away from the movable platform 2. A circular hole is provided on one side of the mounting frame 602, and a locking shaft 613 is slidably connected in the circular hole. A toothed locking ring 616 is connected to the outside of the locking shaft 613 by bolts. A fixing piece 614 is provided on the outside of the toothed locking ring 616. The fixing piece 614 is connected to the side opposite to the support frame 601 on the same side by bolts. A toothed groove 615 is provided on the fixing piece 614, and the inner wall of the toothed groove 615 is engaged with the outside of the toothed locking ring 616. Grooves 605 are provided on both the mounting frame 1 602 and the mounting frame 2 603. The same moving plate 606 is slidably connected in the two grooves 605. A limiting frame 608 is connected to the bottom of the moving plate 606 by bolts. The limiting frame 608 Two symmetrical arc plates 611 are arranged inside, and the two arc plates 611 are connected to the opposite sides of the installation frame 1 602 and the installation frame 2 603 respectively by bolts, and a narrow opening is opened on the upper side of the limiting frame 608, and a positioning rod 609 is slidably connected in the narrow opening, and a spring 610 is connected to the outside of the positioning rod 609 by bolts, and the end of the spring 610 away from the positioning rod 609 is connected to the upper side of the limiting frame 608 by bolts, and insertion holes are opened on the arc plates 611, and the outside of the positioning rod 609 is snap-fitted with the insertion holes; a receiving hole 607 is opened on the movable plate 606, and an insertion frame 617 is arranged below the receiving hole 607, and the upper side of the insertion frame 617 is connected to the bottom of the movable plate 606 The bottom of the insertion frame 617 is connected by bolts, and a connecting ring 618 is connected to the bottom of the insertion frame 617 by bolts, and a switching frame 619 is slidably connected to the outside of the connecting ring 618, and a closing plate 620 is connected to the bottom of the switching frame 619 by bolts. The closing plate 620 and the connecting ring 618 are both provided with openings, and a same sliding block 626 is slidably connected in the opening, and the bottom of the closing plate 620 is connected to a receiving frame 621 by bolts, and two symmetrical rectangular grooves 622 are provided on the outside of the receiving frame 621, and bosses are slidably connected in the rectangular grooves 622, and the opposite sides of the two bosses are connected to the same pressing plate 623 by bolts, and the outside of the pressing plate 623 is slidably connected to the inner wall of the receiving frame 621;The upper side of the pressing plate 623 is connected to the bottom of the sliding block 626 by bolts, a sterile sponge 624 is arranged in the receiving frame 621, the upper side of the sterile sponge 624 is fitted with the bottom of the pressing plate 623, and the outside of the switching frame 619 is connected to two symmetrical convex rafters by bolts, the bottom of the convex rafters are connected to hydraulic rods 625 by bolts, and the output ends of the two hydraulic rods 625 are respectively connected to the upper sides of the two bosses by bolts; the bottom of the receiving frame 621 is rotatably connected to a contact ring 630 through a bearing, the bottom of the mounting frame 2 603 is fixedly connected to a round cotton core 631, and the outside of the contact ring 630 is connected to a gear ring 627 by bolts, and the outside of the receiving frame 621 is fixedly connected to a motor 628, and the output end of the motor 628 is connected to a gear 629 through a coupling, and the gear 629 meshes with the gear ring 627. ;

[0021] Specifically, the support frame 601 is rotated to rotate toward the center to surround the patient's knee, so that the installation frame 1 602 and the installation frame 2 603 are aligned and engaged with each other, the installation frame 1 602 and the installation frame 2 603 are connected using the pin 604, the locking shaft 613 is pulled out from the fixed shaft 612, so that the toothed locking ring 616 is released from the locking connection with the fixing member 614, and the installation frame 1 602 is rotated to make the grooves 605 on the installation frame 1 602 and the installation frame 2 603 close to the patient. After the adjustment is completed, the positioning shaft 613 is reinserted into the fixed shaft 612, so that the toothed positioning ring 616 is engaged and fixed with the toothed groove 615, and the mounting frame 1 602 no longer rotates, and the positioning rod 609 is pulled to make the positioning rod 609 overcome the tension of the spring 610 and release the engagement with the arc plate 611, so that the movable plate 606 can slide in the groove 605, and after the movable plate 606 is moved to a position 45 degrees above the patient's suprapatellar bursa, the positioning rod 609 is reinserted into the arc plate 611. The hydraulic rod 625 is started, and the hydraulic rod 625 pushes the pressing plate 623 to squeeze the sterile sponge 624, so that the iodine in the sterile sponge 624 can be squeezed out and immersed in the round cotton core 631, and the motor 628 is started, and the motor 628 drives the gear ring 627 meshing with the gear 629 to rotate, so that the round cotton core 631 rotates to disinfect the injection site of the patient. As the pressing plate 623 is continuously squeezed under the push of the hydraulic rod 625, the round cotton core 631 is 31 will continue to fully disinfect the injection site. After the iodine tincture in the sterile sponge 624 is completely consumed, the pressing plate 623 that has dropped to the lowest end drives the sliding block 626 to disengage from the closing plate 620 and the connecting ring 618, thereby releasing the seal on the insertion frame 617 and allowing the insertion frame 617 to be completely penetrated. The switching frame 619 is pushed so that the switching frame 619 drives the device connected to the accommodating frame 621 to move to one side of the insertion frame 617, thereby allowing the syringe to be inserted into the insertion frame 617.

[0022] In specific application scenarios, the positioning disinfection module 6 is mainly suitable for the positioning disinfection link in the positioning disinfection structure, that is, the positioning disinfection module 6 uses the round cotton core 631 and the pressure plate 623 to enable the device to continuously disinfect the patient's injection site over a large area, greatly increasing the disinfection rate of the injection site before injection. The closure of the insertion frame 617 by the sliding block 626 also ensures that medical personnel cannot perform premature injections on the patient before the disinfection operation is completed, ensuring that the patient will not be infected and reducing the occurrence of medical disputes.

[0023] Reference Figure 6 In a preferred embodiment, the stabilizing module 7 includes a stabilizing plate 701, the bottom of the stabilizing plate 701 is connected to the upper side of the moving plate 606 by bolts, the stabilizing plate 701 is located above the accommodating hole 607, and the upper side of the stabilizing plate 701 is provided with four circumferentially equidistantly distributed sliding grooves 702, and the sliding grooves 702 are slidably connected with clamping rods 703; the upper sides of the clamping rods 703 are connected with round shafts 704 by bolts, and the upper side of the stabilizing plate 701 is rotatably connected with an adjusting frame 705 through a bearing, and the adjusting frame 705 is provided with a There are four curved grooves 706 equidistantly distributed around the circumference, the inner walls of the four curved grooves 706 are respectively slidably connected to the outside of the four circular shafts 704, and the outside of the adjustment frame 705 is connected to a lever 709 by bolts; the upper side of the stabilizing plate 701 is connected to a built-in ring 707 by bolts, the upper side of the built-in ring 707 is slidably connected to the top inner wall of the adjustment frame 705, and the inner wall of the built-in ring 707 is connected to a coil spring 708 by bolts, and the end of the coil spring 708 away from the built-in ring 707 is connected to the inner wall of the adjustment frame 705 by bolts.

[0024] Specifically, after the disinfection is completed, the lever 709 is pushed so that the lever 709 drives the adjustment frame 705 to rotate to overcome the torsion of the coil spring 708, so that the curved groove 706 pushes the clamping rod 703 connected to the circular shaft 704 to move toward the outside of the stabilizing plate 701, while the syringe is filled into the insertion frame 617. After the needle of the syringe is pushed into the injection site, the lever 709 is released. Under the torsion of the coil spring 708, the four clamping rods 703 clamp the syringe at the same time to keep the syringe stable, and slowly push the medicine into the patient's knee.

[0025] In a specific application scenario, the stabilization module 7 is mainly suitable for stabilizing the link in the injection process, that is, the stabilization module 7 utilizes the coil spring 708 and the clamping rod 703 to enable the device to stably clamp the syringe, so that after the syringe is inserted into the patient's knee, the position can remain unchanged, reducing the occurrence of needle deviation or falling off due to patient movement or doctor's hand shaking.

[0026] Reference Figure 7In a preferred embodiment, the bundling module 8 includes two symmetrical supports 801, the supports 801 are located on the outside of one of the fabric belts 5 on the thigh pad 3 and the calf pad 4, and the outside of the other fabric belt 5 on the thigh pad 3 and the calf pad 4 is connected with an adjusting rack 804 by bolts, and a notch is opened on the upper side of the support 801, and the bottom inner wall of the notch is slidably connected to the outside of the adjusting rack 804, and the inner wall of the notch is connected to a round rod by bolts, and the outside of the round rod is surrounded by a torsion spring 803, one end of the torsion spring 803 is connected to the outside of the round rod by bolts, and the other end is connected to a clamping block 802 by bolts, the outside of the clamping block 802 is slidably connected to the inner wall of the notch, and the clamping block 802 is clamped on the side opposite to the adjusting rack 804.

[0027] Specifically, after the patient's legs are laid flat, align the fabric belts 5 on the thigh pad 3 and the calf pad 4, and insert the adjustment rack 804 into the support 801 so that the adjustment rack 804 is engaged with the block 802, and the position of the fixed support 801 remains unchanged. Pull the adjustment rack 804 to push the block 802 bound by the torsion spring 803, so that the fabric belt 5 can fully wrap the patient's thigh and calf. Gently pull the fabric belt 5 to confirm that the fabric belt 5 is wrapped and fixed.

[0028] In a specific application scenario, the focusing module 8 is mainly suitable for the fixing link in the fixing process, that is, the focusing module 8 can effectively fix the device on the patient's leg by adjusting the rack 804 and the block 802, so that the device can obtain a more powerful positioning environment, so that the device can obtain enough space and angle when performing injection treatment on the patient's knee, thereby improving the treatment effect of the device on the patient.

[0029] Working principle: After placing the patient's thigh and calf on the thigh pad 3 and calf pad 4 respectively, the patient's legs are laid flat, the fabric belts 5 on the thigh pad 3 and the calf pad 4 are aligned, and the adjustment rack 804 is inserted into the support 801 so that the adjustment rack 804 is engaged with the clamping block 802, and the position of the fixed support 801 remains unchanged, and the adjustment rack 804 is pulled so that the adjustment rack 804 pushes away the clamping block 802 bound by the torsion spring 803, so that the fabric belt 5 can fully wrap the patient's thigh and calf, and the fabric belt 5 is gently pulled to confirm that the wrapped and fixed state of the fabric belt 5 is confirmed, and the support frame 601 is rotated to rotate the support frame 601 toward the center to surround the patient's knees, so that the installation frame 1 602 and the installation frame 2 603 are aligned and embedded with each other, and the installation frame 1 602 and the installation frame 2 603 are connected with the pin 604, and the positioning shaft 613 is pulled out from the fixed shaft 612 to make the toothed positioning ring 6 16 releases the clamping connection with the fixing member 614, rotates the installation frame 1 602, and makes the groove 605 on the installation frame 1 602 and the installation frame 2 603 close to the patient's suprapatellar bursa. After adjustment, reinsert the clamping shaft 613 into the fixed shaft 612, so that the toothed clamping ring 616 is clamped and fixed with the toothed groove 615, and the installation frame 1 602 no longer rotates, pulls the positioning rod 609, and makes the positioning rod 609 overcome the pulling force of the spring 610 to release the clamping connection with the arc plate 611, so that the movable plate 606 can slide in the groove 605, moves the movable plate 606 to a position of forty-five degrees above the patient's suprapatellar bursa, reinserts the positioning rod 609 into the arc plate 611, starts the hydraulic rod 625, and the hydraulic rod 625 pushes the pressing plate 623 to squeeze the sterile sponge 624, so that the iodine in the sterile sponge 624 can be squeezed out and immersed in the round cotton core 631, and starts the motor 628.The motor 628 drives the gear ring 627 meshing with the gear 629 to rotate, so that the circular cotton core 631 rotates to disinfect the patient's injection site. As the pressure plate 623 is continuously squeezed under the push of the hydraulic rod 625, the circular cotton core 631 will continue to fully disinfect the injection site. After the iodine tincture in the sterile sponge 624 is completely exhausted, the pressure plate 623 that has dropped to the lowest end drives the sliding block 626 to disengage from the closing plate 620 and the connecting ring 618, releasing the closure of the insertion frame 617, allowing the insertion frame 617 to be completely connected, and pushing the switching frame 619 so that the switching frame 619 drives the connecting ring 618 connected to the accommodating frame 621. The device moves to one side of the insertion frame 617 so that the syringe can be inserted into the insertion frame 617. After the disinfection is completed, the lever 709 is toggled so that the lever 709 drives the adjustment frame 705 to rotate to overcome the torsion of the coil spring 708, so that the curved groove 706 pushes the clamping rod 703 connected to the circular shaft 704 to move to the outside of the stabilizing plate 701, while the syringe is filled into the insertion frame 617. After the needle of the syringe is pushed into the injection site, the lever 709 is released. Under the torsion of the coil spring 708, the four clamping rods 703 clamp the syringe at the same time to keep the syringe stable, and the medicine is slowly pushed into the patient's knee.

[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A drug delivery device for injecting a stem cell and gelatin sponge solution into a knee joint, comprising a support plate (1), characterized in that: A notch is provided on the upper side of the support plate (1), a movable platform (2) is slidably connected in the notch, a positioning and disinfection module (6) is provided on the movable platform (2), a stabilization module (7) is provided on the positioning and disinfection module (6), and the stabilization module (7) is located above the positioning and disinfection module (6), thigh pads (3) and calf pads (4) are respectively fixedly connected on both sides of the support plate (1) away from the positioning and disinfection module (6), and two symmetrical fabric belts (5) are fixedly connected to the upper sides of the thigh pads (3) and the calf pads (4), and the same contraction module (8) is provided outside the two fabric belts (5) located on the same side.

2. A drug delivery device for injecting a stem cell and gelatin sponge solution into a knee joint according to claim 1, characterized in that: The positioning and disinfection module (6) comprises two symmetrical support frames (601), the bottoms of the two support frames (601) are movably connected to the upper side of the movable platform (2), the ends of the support frames (601) away from the movable platform (2) are fixedly connected to a fixed shaft (612), the opposite sides of the two fixed shafts (612) are respectively fixedly connected to a mounting frame 1 (602) and a mounting frame 2 (603), and the mounting frame 1 (602) and the mounting frame 2 (603) are located at the opposite sides of the bottom and are clamped, and the inner walls of the mounting frame 1 (602) and the mounting frame 2 (603) are each provided with two symmetrical fine holes, and the fine holes are A common pin (604) is provided, and a circular hole is provided on a side of a fixed shaft (612) located on the first installation frame (602) away from the first installation frame (602), a locking shaft (613) is slidably connected in the circular hole, a toothed locking ring (616) is fixedly connected to the outside of the locking shaft (613), a fixing piece (614) is provided on the outside of the toothed locking ring (616), the fixing piece (614) is fixedly connected to the side opposite to the support frame (601) on the same side, a toothed groove (615) is provided on the fixing piece (614), and the inner wall of the toothed groove (615) is locked with the outside of the toothed locking ring (616).

3. A drug delivery device for injecting a stem cell and gelatin sponge solution into a knee joint according to claim 2, characterized in that: The installation frame 1 (602) and the installation frame 2 (603) are both provided with a slot (605), and a same movable plate (606) is slidably connected in the two slots (605). The bottom of the movable plate (606) is fixedly connected to a limiting frame (608). Two symmetrical arc plates (611) are arranged in the limiting frame (608), and the two arc plates (611) are respectively fixedly connected to opposite sides of the installation frame 1 (602) and the installation frame 2 (603). A narrow opening is provided on the upper side of the limiting frame (608), and a positioning rod (609) is slidably connected in the narrow opening. A spring (610) is fixedly connected to the outside of the positioning rod (609), and one end of the spring (610) away from the positioning rod (609) is fixedly connected to the upper side of the limiting frame (608). An insertion hole is provided on the arc plates (611), and the outside of the positioning rod (609) is snap-fitted with the insertion hole.

4. A drug delivery device for injecting a stem cell and gelatin sponge solution into a knee joint according to claim 3, characterized in that: The movable plate (606) is provided with a receiving hole (607), an insertion frame (617) is provided below the receiving hole (607), the upper side of the insertion frame (617) is fixedly connected to the bottom of the movable plate (606), the bottom of the insertion frame (617) is fixedly connected to a connecting ring (618), the outside of the connecting ring (618) is slidably connected to a switching frame (619), the bottom of the switching frame (619) is fixedly connected to a closing plate (620), and the closing plate (620) and the connecting ring (618) are connected to the closing plate (620). The connecting ring (618) is provided with an opening, and a sliding block (626) is slidably connected in the opening. The bottom of the closing plate (620) is fixedly connected to a receiving frame (621). Two symmetrical rectangular grooves (622) are provided on the outside of the receiving frame (621). Bosses are slidably connected in the rectangular grooves (622). The opposite sides of the two bosses are fixedly connected to a pressing plate (623). The outside of the pressing plate (623) is slidably connected to the inner wall of the receiving frame (621).

5. The drug delivery device for injecting a stem cell and gelatin sponge solution into a knee joint according to claim 4, characterized in that: The upper side of the pressing plate (623) is fixedly connected to the bottom of the sliding block (626); a sterile sponge (624) is arranged in the accommodating frame (621); the upper side of the sterile sponge (624) is in contact with the bottom of the pressing plate (623); and the outside of the switching frame (619) is fixedly connected to two symmetrical convex rafters; the bottoms of the convex rafters are fixedly connected to hydraulic rods (625); and the output ends of the two hydraulic rods (625) are fixedly connected to the upper sides of the two bosses, respectively.

6. A drug delivery device for injecting a stem cell and gelatin sponge solution into a knee joint according to claim 5, characterized in that: The bottom of the containing frame (621) is movably connected to a contact ring (630), the bottom of the second mounting frame (603) is fixedly connected to a round cotton core (631), the outside of the contact ring (630) is fixedly connected to a gear ring (627), the outside of the containing frame (621) is fixedly connected to a motor (628), the output end of the motor (628) is connected to a gear (629) via a coupling, and the gear (629) is meshed with the gear ring (627).

7. The drug delivery device for injecting a stem cell and gelatin sponge solution into a knee joint according to claim 1, characterized in that: The stabilizing module (7) comprises a stabilizing plate (701), the bottom of the stabilizing plate (701) being fixedly connected to the upper side of the movable plate (606), the stabilizing plate (701) being located above the accommodating hole (607), and the upper side of the stabilizing plate (701) being provided with four circumferentially equidistantly distributed sliding grooves (702), and the sliding grooves (702) being slidably connected with clamping rods (703).

8. The drug delivery device for injecting a stem cell and gelatin sponge solution into a knee joint according to claim 7, characterized in that: The upper sides of the clamping rods (703) are fixedly connected to circular shafts (704), the upper side of the stabilizing plate (701) is movably connected to an adjustment frame (705), the adjustment frame (705) is provided with four circumferentially equidistantly distributed curved grooves (706), the inner walls of the four curved grooves (706) are respectively slidably connected to the outside of the four circular shafts (704), and the outside of the adjustment frame (705) is fixedly connected to a lever (709).

9. The drug delivery device for injecting a stem cell and gelatin sponge solution into a knee joint according to claim 8, characterized in that: The upper side of the stabilizing plate (701) is fixedly connected to a built-in ring (707), the upper side of the built-in ring (707) is slidably connected to the top inner wall of the adjustment frame (705), and the inner wall of the built-in ring (707) is fixedly connected to a coil spring (708), and one end of the coil spring (708) away from the built-in ring (707) is fixedly connected to the inner wall of the adjustment frame (705).

10. The drug delivery device for injecting a stem cell and gelatin sponge solution into a knee joint according to claim 1, characterized in that: The bundling module (8) comprises two symmetrical supports (801), wherein the supports (801) are located on the outside of one of the fabric belts (5) on the thigh pad (3) and the calf pad (4), and the outside of the other fabric belt (5) on the thigh pad (3) and the calf pad (4) is fixedly connected to an adjustment rack (804), and the upper side of each support (801) is provided with a notch, and the inner wall of the bottom of the notch is slidably connected to the outside of the adjustment rack (804), and the inner wall of the notch is fixedly connected to a round rod, and the outside of the round rod is surrounded by a torsion spring (803), one end of the torsion spring (803) is fixedly connected to the outside of the round rod, and the other end is fixedly connected to a clamping block (802), and the outside of the clamping block (802) is slidably connected to the inner wall of the notch, and the side of the clamping block (802) opposite to the adjustment rack (804) is clamped.

Images