A rib fracture repair device for thoracic surgery

Abstract

The application belongs to the technical field of medical devices, and particularly relates to a rib fracture repairing device for thoracic surgery, which comprises a main body, pneumatic flexible clamping jaws installed at the four corners of the bottom surface of the main body, contact pieces arranged on the bottom surface of the main body and the pneumatic flexible clamping jaws, a locking mechanism arranged on the main body, a connecting piece arranged on the side surface of the main body, and an adjusting mechanism arranged on the main body and used for controlling the state of the pneumatic flexible clamping jaws. The adjusting mechanism comprises a gas conveying part arranged on the main body and used for injecting air into the pneumatic flexible clamping jaws, a blocking part arranged at the lower end of the gas conveying part and used for controlling the one-way flow of the air flow, and a reinforcing part arranged on the main body and used for fixing the blocking part. The rib fracture repairing device can automatically adjust the pressure applied to the ribs according to different stages of patient rehabilitation.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of medical devices, and particularly relates to a rib fracture repair device for thoracic surgery. BACKGROUND

[0002] In thoracic surgery, the treatment of rib fractures usually requires the use of external or internal fixation devices to ensure proper healing of the fracture site. Traditional orthopedic fixation equipment mainly includes rigid metal splints, screw and steel plate systems, and bandage-type fixation devices.

[0003] For example, a self-pressurized rib bone plate fixing device and its fixing method are disclosed in application No. CN202210201434.2. The device is provided with fixed first, second, third and fourth clamping jaws on the upper end of the bone plate body and movable fifth, sixth, seventh and eighth clamping jaws on the lower end of the bone plate body. The upper and lower clamping jaws are arranged in position and formed into a bent shape. During use, the bone plate body is directly hung on the rib fracture site by the clamping jaws, and then the four adjusting pins at the rear end of the bone plate are tightened in turn by a screwdriver. When the adjusting pins are tightened, the end part of the adjusting pin can engage and drive the fifth, sixth, seventh and eighth clamping jaws through the teeth grooves on one side of the cam and the protruding teeth on the inner wall of the transmission groove of the fifth, sixth, seventh and eighth clamping jaws, so that the fifth, sixth, seventh and eighth clamping jaws move along the sliding grooves to approach the first, second, third and fourth clamping jaws, thereby compressing the rib. The tightness of each group of clamping jaws can be independently adjusted, realizing self-pressurization of the clamping jaws and solving the problem that the clamping pieces of the existing rib bone plate cannot ensure that each clamping piece is clamped against the rib and lack of pressurization function, thereby prolonging the recovery period of the patient.

[0004] However, in actual use, it is not difficult to find that the above-mentioned fixing device still has some deficiencies. The above-mentioned fixing device does not take into account the changes in the demand for fixation pressure during different stages of the patient's recovery process. During the entire recovery period, the pressure applied is constant, whether in the early or late stage, which may lead to insufficient pressure in the early stage affecting the healing speed, or excessive pressure in the late stage causing unnecessary pain or even overcorrection problems. In addition, due to the complex and curved shape of the rib, the rigid fixation structure in the above-mentioned fixing device is difficult to completely fit the surface, which may lead to local pressure concentration, increase the risk of bone damage, and may cause micro-displacement due to respiratory movement, thereby affecting the fixation effect. SUMMARY

[0005] The purpose of the present application is to provide a rib fracture repair device for thoracic surgery, which can automatically adjust the pressure applied to the rib according to different stages of the patient's recovery.

[0006] The technical solutions adopted by the present application are as follows:

[0007] The utility model provides a rib fracture repair device for thoracic surgery, including the bottom surface four corners of main part are equipped with pneumatic flexible clamp jaw, the bottom surface and pneumatic flexible clamp jaw of main part all is provided with contact piece,

[0008] Locking mechanism, locking mechanism is arranged on the main part,

[0009] Connecting piece, connecting piece is arranged on the side of main part,

[0010] Adjusting mechanism, adjusting mechanism is arranged on the main part for controlling the state of pneumatic flexible clamp jaw,

[0011] Wherein, the adjusting mechanism includes gas delivery part, gas delivery part is arranged on the main part for injecting air into pneumatic flexible clamp jaw, the lower end of gas delivery part is provided with the plugging part for controlling the one-way flow of air flow, the main part is also provided with the reinforcing part for fixing the plugging part.

[0012] In a preferred embodiment, the surface of the main part, pneumatic flexible clamp jaw and contact piece is coated with a bioactive coating.

[0013] In a preferred embodiment, the locking mechanism includes a mounting slot, the mounting slot is opened on the main part, the mounting slot is rotatably connected with a rotating plate, the front and back two side walls of the mounting slot are provided with guide grooves, the lower end of the guide groove is provided with a first lock slot, the rotating plate is provided with a cavity, and the two ends of the cavity are slidably connected with a first lock block, the first lock block is fixedly connected with a pull block, the two first lock blocks are fixedly connected with a tension spring, and the bottom surface of the rotating plate is fixedly connected with a second lock block.

[0014] In a preferred embodiment, the connecting piece includes an insertion plate, the insertion plate is fixedly connected to the side of the main part, the end of the insertion plate away from the main part is provided with a second lock slot, and the end of the insertion plate close to the main part is provided with a bending slot.

[0015] In a preferred embodiment, the contact piece includes a hollow cylinder, the hollow cylinder is uniformly distributed and connected to the main part and the pneumatic flexible clamp jaw, one end of the hollow cylinder is slidably connected with a contact block, the contact block is annularly distributed and provided with a circular groove, the inner wall of the circular groove is fixedly connected with a spring, and the other end of the spring is fixedly connected with the hollow cylinder, the outer ring of the contact block is fixedly connected with a fixing ring, and the outer ring of the fixing ring is fixedly connected with the inner wall of the hollow cylinder.

[0016] In a preferred embodiment, the fixing ring is made of polylactic acid degradable material.

[0017] In a preferred embodiment, the gas delivery part includes a gas inlet end, the gas inlet end is arranged at the center of the main part, a gas delivery pipeline is communicated below the gas inlet end, and the other end of the gas delivery pipeline is connected with the pneumatic flexible clamp jaw.

[0018] In a preferred scheme, the blocking part comprises a sleeve block fixedly connected to the inner wall of the air inlet end by a support rod, a lifting rod slidingly inserted into the sleeve block, a lower end of the lifting rod fixedly connected to a limiting disc, an upper end of the lifting rod fixedly connected to a blocking block, a tapered groove formed in the center of the blocking block, a compression spring externally sleeved on the lifting rod, and two ends of the compression spring fixedly connected to the blocking block and the sleeve block respectively, and limiting grooves formed on both sides of the blocking block.

[0019] In a preferred scheme, the reinforcing part comprises a first movable slot and a second movable slot, the first movable slot and the second movable slot are both formed in the main body, and the second movable slot is located above the first movable slot, heat absorbing blocks are fixedly embedded on both sides of the main body, a metal spring is arranged in the first movable slot, one end of the metal spring is fixedly connected to the heat absorbing block, the other end of the metal spring is fixedly connected to a sliding block, a locking rod is slidingly connected in the first movable slot, and one end of the locking rod is fixedly connected to the sliding block, a stress rod is slidingly connected in the second movable slot, and one end of the stress rod is also fixedly connected to the sliding block.

[0020] In a preferred scheme, one end of the locking rod is trapezoidal.

[0021] The technical effects achieved by the present application are as follows:

[0022] The present application can realize dynamic pressure management of the rib fracture site through the synergistic effect of the pneumatic flexible clamp jaw and the contact piece. The design of the pneumatic flexible clamp jaw enables it to closely fit the irregular rib surface, thereby enhancing the stability and reliability of fixation. Compared with traditional rigid fixation structures, the flexible clamp jaw can better disperse the force applied to the rib, reduce the risk of local pressure concentration, reduce the possibility of slight displacement caused by respiratory movement, and ensure that the fracture site is correctly positioned during the entire healing period; the spring and degradable material design in the contact piece can gradually reduce the pressure applied to the rib during the healing process, preventing excessive compression or scabbing problems caused by long-term fixation. This pressure regulation mechanism not only helps to accelerate bone fracture healing, but also significantly improves the postoperative comfort of the patient;

[0023] The present application ensures the efficient sealing of the gas delivery system through the unique design of the reinforcing part, effectively preventing gas leakage. The phase change characteristics of the metal spring under body temperature enable the locking rod to automatically insert into the limiting groove on the blocking block, thereby realizing stable locking of the blocking block. Even during daily activities of the patient, this locking mechanism can ensure the stability of the internal pressure of the pneumatic system and maintain the firm fixation of the clamp jaw on the rib, providing reliable physical support for bone fracture healing while avoiding the risk of fixation failure caused by gas leakage;

[0024] The application allows doctors to quickly combine the repair assembly according to the specific CT scan results by the design of the modular body. Not only meets the specific requirements of different patients for length and curvature, but also simplifies the preoperative preparation process, shortens the operation time. In addition, the design of the locking mechanism and the connecting piece realizes the quick and firm connection between adjacent bodies, improves the convenience and efficiency of the operation, reduces the complexity of the operation, and also facilitates the later adjustment or disassembly work. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is the structural schematic diagram of the whole application;

[0026] Figure 2 is the structural schematic diagram of a single body of the application;

[0027] Figure 3 is the top view of the application Figure 2 ;

[0028] Figure 4 is the exploded schematic diagram of the body and the locking mechanism of the application;

[0029] Figure 5 is the enlarged schematic diagram of part A shown in the application Figure 4 ;

[0030] Figure 6 is the sectional view of the rotating plate of the application;

[0031] Figure 7 is the side sectional view of the body of the application;

[0032] Figure 8 is the bottom sectional view of the body of the application;

[0033] Figure 9 is the enlarged schematic diagram of part B shown in the application Figure 7 ;

[0034] Figure 10 is the exploded schematic diagram of the application Figure 7 ;

[0035] Figure 11 is the sectional view of the contact piece of the application;

[0036] Figure 12 is the enlarged schematic diagram of part C shown in the application Figure 11 .

[0037] In the drawings, the component list represented by each reference sign is as follows:

[0038] 1, body; 2, pneumatic flexible clamp jaw; 3, locking mechanism; 4, connecting piece; 5, contact piece; 6, adjusting mechanism;

[0039] 301 mounting slot; 302 rotating plate; 303 guide slot; 304 first lock slot; 305 first lock block; 306 pull block; 307 pull spring; 308 second lock block;

[0040] 401 plug-in plate; 402 second lock slot; 403 bending slot;

[0041] 501 hollow cylinder; 502 contact block; 503 circular slot; 504 spring; 505 fixing ring;

[0042] 61 gas conveying part; 62 plugging part; 63 reinforcing part;

[0043] 611 gas inlet end; 612 gas conveying pipeline;

[0044] 621 sleeve block; 622 lifting rod; 623 limiting disc; 624 plugging block; 625 compression spring; 626 limiting slot;

[0045] 631 first movable slot; 632 second movable slot; 633 heat absorbing block; 634 metal spring; 635 sliding block; 636 lock rod; 637 force receiving rod. DETAILED DESCRIPTION

[0046] In order to make the above objectives, features and advantages of the present application more apparent, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0047] In the following description, a lot of specific details are set forth in order to provide a thorough understanding of the present application, however, the present application can be practiced in other manners different from those described herein, and those skilled in the art can make similar generalization without departing from the spirit and scope of the present application, therefore, the present application is not limited to the specific embodiments disclosed below.

[0048] Secondly, the "one embodiment" or "embodiment" referred to herein means that the specific features, structures or characteristics can be included in at least one implementation of the present application. "In a preferred embodiment" appearing in different places in the specification does not mean the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments.

[0049] Thirdly, the present application is described in detail in conjunction with the schematic diagram, when the embodiments of the present application are described in detail, the cross-sectional view of the device structure will be partially enlarged without the general proportion for the convenience of description, and the schematic diagram is only an example, which should not limit the scope of protection of the present application herein. In addition, the three-dimensional spatial dimensions including length, width and depth should be included in the actual manufacture.

[0050] Please refer to the accompanying Figure 1 , Figure 2、 Figure 7 and Figure 10 As shown in FIG. 1, the embodiment provides a rib fracture repair device for thoracic surgery, which comprises a main body 1, a pneumatic flexible clamp jaw 2 installed at each corner of the bottom surface of the main body 1, and a contact piece 5 arranged on the bottom surface of the main body 1 and the pneumatic flexible clamp jaw 2.

[0051] A locking mechanism 3 is arranged on the main body 1.

[0052] A connecting piece 4 is arranged on the side surface of the main body 1.

[0053] An adjusting mechanism 6 is arranged on the main body 1 and used for controlling the state of the pneumatic flexible clamp jaw 2.

[0054] The adjusting mechanism 6 comprises a gas conveying part 61 arranged on the main body 1 and used for injecting air into the pneumatic flexible clamp jaw 2, a blocking part 62 arranged at the lower end of the gas conveying part 61 and used for controlling the one-way flow of the air flow, and a reinforcing part 63 arranged on the main body 1 and used for fixing the blocking part 62.

[0055] The surfaces of the main body 1, the pneumatic flexible clamp jaw 2 and the contact piece 5 are coated with a bioactive coating.

[0056] In this embodiment, the two adjacent main bodies 1 are quickly connected or detached through the locking mechanism 3 and the connecting piece 4, and the tension of the pneumatic flexible clamp jaw 2 is adjusted through the adjusting mechanism 6, so as to realize the accurate fixation of the fracture site. The application of the bioactive coating not only improves the compatibility of the device with the human body tissue, but also helps to reduce the risk of infection and promote fracture healing.

[0057] The pneumatic flexible clamp jaw 2 adopts the products currently available on the market. When selecting the type, the specifications and use scenarios should be suitable, and the type that meets the requirements of the present application should be selected as much as possible. The specific model and specifications are not limited here.

[0058] Secondly, referring to FIG. 2 again, Figures 2 to 7 The locking mechanism 3 comprises a mounting groove 301 arranged on the main body 1, a rotating plate 302 rotatably connected in the mounting groove 301, guide grooves 303 arranged on the inner walls of the front and rear sides of the mounting groove 301, a first locking groove 304 arranged at the lower end of each guide groove 303, a cavity arranged on the rotating plate 302, first locking blocks 305 slidably inserted at both ends of the cavity, a pull block 306 fixedly connected to each first locking block 305, a pull spring 307 fixedly connected between the two first locking blocks 305, and a second locking block 308 fixedly connected to the bottom surface of the rotating plate 302.

[0059] Thirdly, referring to FIG. 3, Figure 2The connecting piece 4 comprises an insertion plate 401 fixedly connected to the side of the main body 1, and the insertion plate 401 is provided with a second locking groove 402 at the end away from the main body 1, and the insertion plate 401 is provided with a bending groove 403 at the end close to the main body 1.

[0060] In this embodiment, the preoperative preparation determines the type and degree of fracture according to the CT scan results, and selects a proper number of modular main bodies 1 to combine into a repair assembly with a required length and curvature. The specific operation steps are as follows: first, pull the two pull blocks 306 to make the two first locking blocks 305 close to each other, so as to drive the first locking blocks 305 to be separated from the first locking grooves 304. Then, rotate the rotating plate 302, and completely insert the insertion plate 401 on the other main body 1 into the mounting groove 301 on the first main body 1. Subsequently, pull the two first locking blocks 305 close to each other again, and then rotate the rotating plate 302 in the opposite direction. When the first locking blocks 305 enter the guide grooves 303, release the pull blocks 306, so that the first locking blocks 305 are separated from each other under the elastic restoring force of the tension springs 307. With the rotation of the rotating plate 302, when the second locking blocks 308 on the rotating plate 302 are located in the second locking grooves 402 of the insertion plate 401, the first locking blocks 305 are just located at the first locking grooves 304. At this time, the two first locking blocks 305 are pushed away from each other again by the elastic restoring force of the tension springs 307, so that they are inserted into the first locking grooves 304, thereby fixing the rotating plate 302 and completing the splicing between the two adjacent main bodies 1. According to the required length, repeat the above steps to splice multiple main bodies 1. When bending the curvature of the rib of the spliced repair assembly, a small amplitude bending is performed through the bending groove 403 on the insertion plate 401, so as to match the curvature of the repair assembly with the rib.

[0061] In the process of orthopedic surgery, first, the repair assembly spliced by the plurality of main bodies 1 is placed at the rib fracture site. By slightly pressing the main body 1 part, and using the bending groove 403 to slightly bend again at the connection between the two main bodies 1, the repair assembly is ensured to be closely fitted with the rib.

[0062] It is to be noted that the insertion plate 401 is made of elastic metal plate. The leftmost main body 1 does not need to be provided with the connecting piece 4.

[0063] Secondly, please refer to Figure 11 and Figure 12, the contact piece 5 comprises a hollow cylinder 501 which is uniformly connected to the main body 1 and the pneumatic flexible clamping jaw 2, one end of the hollow cylinder 501 is slidingly connected with a contact block 502, circular grooves 503 are arranged in the contact block 502 in a ring shape, springs 504 are fixedly connected to the inner wall of the circular grooves 503, the other end of the spring 504 is fixedly connected to the hollow cylinder 501, a fixed ring 505 is fixedly connected to the outer circle of the contact block 502, and the outer circle of the fixed ring 505 is fixedly connected to the inner wall of the hollow cylinder 501, and the fixed ring 505 is made of polylactic acid degradable material.

[0064] In this embodiment, the main body 1 and the pneumatic flexible clamping jaw 2 are provided with the contact piece 5 which is in close contact with the rib. After a period of time, the fixed ring 505 made of polylactic acid degradable material used by the contact piece 5 will be degraded and absorbed in the human body. Once the fixed ring 505 disappears, the contact block 502 can freely slide in the hollow cylinder 501, and under the elastic restoring force of the spring 504, the contact block 502 is pushed to shrink into the hollow cylinder 501 until the surface of the hollow cylinder 501 is flush with the surface of the contact block 502. This process helps to reduce the pressure applied to the rib, not only improving the comfort of the patient, but also preventing the phenomenon of overcorrection which produces scabbing (specifically: in the early and middle stages of rehabilitation, when the rib is in the scabbing stage, the device will provide greater pressure to promote healing; and in the middle, middle-late and late stages, that is, after the completion of rib scabbing into the rehabilitation period, the pressure is gradually reduced to a more comfortable level, thereby avoiding the phenomenon of overcorrection, improving the comfort and safety of the patient).

[0065] Please refer to Figure 7 and Figure 8 again, the gas conveying part 61 comprises a gas inlet end 611 which is arranged at the center of the main body 1, a gas conveying pipeline 612 is communicated below the gas inlet end 611, and the other end of the gas conveying pipeline 612 is connected with the pneumatic flexible clamping jaw 2.

[0066] It should be noted that: the upper end of the gas inlet end 611 should be provided with a quick-release joint connected with the pipeline of the external air pump (not shown in the figure) to facilitate rapid connection; at the same time, one end of the gas conveying pipeline 612 is provided with four gas outlet pipelines which are respectively connected with the four pneumatic flexible clamping jaws 2.

[0067] Please refer to Figure 9 and Figure 10The blocking part 62 comprises a sleeve block 621 fixedly connected to the inner wall of the air inlet end 611 by a support rod, a lifting rod 622 slidingly inserted into the sleeve block 621, a limiting disc 623 fixedly connected to the lower end of the lifting rod 622, a blocking block 624 fixedly connected to the upper end of the lifting rod 622, a tapered groove formed in the center of the blocking block 624, a compression spring 625 externally sleeved on the lifting rod 622, and the two ends of the compression spring 625 fixedly connected to the blocking block 624 and the sleeve block 621 respectively, and a limiting groove 626 formed on the two sides of the blocking block 624.

[0068] In this embodiment, the external air pump is connected to the air inlet end 611 through a pipeline. Under the action of the gas pressure, the blocking block 624 and the lifting rod 622 are pushed to move downward, and the compression spring 625 is compressed. At this time, the gas enters through the gap formed between the blocking block 624 and the air inlet end 611, and then flows into the pneumatic flexible clamping jaw 2 at the bottom of the main body 1 through the gas conveying pipeline 612, so that the pneumatic flexible clamping jaw 2 is bent and firmly holds the rib. The use of the pneumatic flexible clamping jaw 2 can more closely fit the irregular rib surface, which helps to improve the fixing stability and reduce the slight displacement caused by movement or breathing. The flexible design can also play a role in dispersing the force applied to the rib, avoiding bone damage. After the pneumatic flexible clamping jaw 2 firmly holds the rib, the pumping of the gas into the air inlet end 611 is stopped, and then the blocking block 624 is pushed to move upward under the elastic restoring force of the compression spring 625. At this time, the blocking block 624 is tightly closed with the air inlet end 611, and the gas cannot be discharged from the air inlet end 611.

[0069] Please refer again to Figure 10 The reinforcing part 63 comprises a first movable slot 631 and a second movable slot 632, both of which are formed on the main body 1, and the second movable slot 632 is located above the first movable slot 631. Heat absorbing blocks 633 are fixedly embedded on both sides of the main body 1. A metal spring 634 is arranged in the first movable slot 631, one end of which is fixedly connected to the heat absorbing block 633. The other end of the metal spring 634 is fixedly connected to a sliding block 635. A locking rod 636 is slidingly connected in the first movable slot 631, one end of which is fixedly connected to the sliding block 635. A stress rod 637 is slidingly connected in the second movable slot 632, one end of which is also fixedly connected to the sliding block 635. One end of the locking rod 636 is trapezoidal.

[0070] In this embodiment, after the installation of the repair assembly consisting of a plurality of bodies 1 for a period of time, the heat-absorbing block 633 will absorb the heat in the patient's body and transfer it to the metal spring 634, causing the metal spring 634 to undergo a phase change and elongate, thereby pushing the sliding block 635 to move. The movement of the sliding block 635 drives the locking rod 636 to move, causing one end of the locking rod 636 to insert into the limiting slot 626 on the blocking block 624. The end of the locking rod 636 is trapezoidal, and as it continues to insert, it will come into contact with the blocking block 624 and push it to move upward, ensuring that the blocking block 624 tightly fits the air inlet end 611, thereby preventing air leakage.

[0071] During disassembly, a sharp cone rod is inserted into the air inlet end 611. The sharp cone rod first comes into contact with the two force rods 637, causing them to move away from each other. The separation of the force rods 637 drives the two sliding blocks 635 to move away from each other, thereby causing the two locking rods 636 to move away from each other, causing the locking rod 636 to disengage from the limiting slot 626. Subsequently, the lower end of the sharp cone rod presses down on the blocking block 624, causing the gas to be discharged along the gap between the blocking block 624 and the air inlet end 611. Then, the pneumatic flexible clamps 2 are restored to their original state and no longer fix the ribs.

[0072] It should be noted that the metal spring 634 is made of a memory alloy material, which can automatically restore to a pre-set shape after reaching a certain temperature. This feature allows the metal spring 634 to effectively elongate and contract under body temperature, thereby pushing the locking rod 636 to move. The metal spring 634 made of a memory alloy material is a known technology and will not be described in detail here.

[0073] The working principle of the present application is as follows:

[0074] The body 1 is the basic frame of the entire device, and pneumatic flexible clamps 2 are installed on the bottom surface of the four corners. These clamps are driven by air and can adjust the tension by injecting air, ensuring that they tightly fit the irregular rib surface, thereby improving the fixing effect and dispersing the applied pressure.

[0075] The adjustment mechanism 6 is responsible for controlling the state of the pneumatic flexible clamps 2. It includes a gas delivery part 61, a blocking part 62, and a reinforcing part 63. By injecting an appropriate amount of air into the pneumatic flexible clamps 2, the clamps bend and firmly hold the ribs; and the blocking part 62 ensures that the gas does not leak, maintaining the required pressure.

[0076] The locking mechanism 3 and the connecting piece 4 allow adjacent bodies 1 to be quickly connected or disassembled, allowing doctors to customize the length and curvature of the repair assembly according to the CT scan results to suit the specific conditions of the patient.

[0077] The contact piece 5 is composed of a hollow cylinder 501 and a contact block 502, wherein a spring 504 and a fixing ring 505 made of degradable material are contained. With the passage of time, the fixing ring 505 gradually degrades, and the contact block 502 can be contracted under the action of the spring 504, thereby reducing the pressure on the rib and improving the comfort of the patient.

[0078] The above description is only the preferred embodiment of the present application, and it should be pointed out that for ordinary skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can also be made, which should be considered as the protection scope of the present application. The structures, devices and operation methods not specifically described and explained in the present application, such as without special description and limitation, are implemented according to the conventional means in the art.

Claims

1. A rib fracture repair device for use in thoracic surgery, characterized by: The utility model provides a kind of flexible gripper, including main body (1), the bottom surface four corners of the main body (1) are equipped with pneumatic flexible gripper (2), and the bottom surface of the main body (1) and pneumatic flexible gripper (2) are all provided with contact piece (5); Locking mechanism (3) is provided on the main body (1); Connecting piece (4) is provided on the side of the main body (1); Adjusting mechanism (6) is provided on the main body (1), for controlling the state of pneumatic flexible gripper (2); Wherein, the adjusting mechanism (6) includes gas delivery part (61), which is provided on the main body (1), for injecting air into pneumatic flexible gripper (2), the lower end of the gas delivery part (61) is provided with a blocking part (62) for controlling the one-way flow of air flow, and the main body (1) is also provided with a reinforcing part (63) for fixing the blocking part (62); The gas delivery part (61) includes an air inlet end (611) provided at the center of the main body (1), a gas delivery pipeline (612) is connected below the air inlet end (611), and the other end of the gas delivery pipeline (612) is connected with the pneumatic flexible gripper (2); The blocking part (62) includes a sleeve block (621) fixedly connected to the inner wall of the air inlet end (611) by a support rod, a lifting rod (622) is slidingly inserted into the sleeve block (621), a limiting disc (623) is fixedly connected to the lower end of the lifting rod (622), an obturator (624) is fixedly connected to the upper end of the lifting rod (622), a tapered groove is formed at the center of the obturator (624), a compression spring (625) is sleeved outside the lifting rod (622), and the two ends of the compression spring (625) are fixedly connected with the obturator (624) and the sleeve block (621) respectively, and limiting grooves (626) are formed on both sides of the obturator (624); The reinforcing part (63) includes a first movable slot (631) and a second movable slot (632), both of which are formed in the main body (1), and the second movable slot (632) is located above the first movable slot (631), heat absorbing blocks (633) are fixedly embedded on both sides of the main body (1), a metal spring (634) is arranged in the first movable slot (631), one end of the metal spring (634) is fixedly connected with the heat absorbing block (633), the other end of the metal spring (634) is fixedly connected with a sliding block (635), a locking rod (636) is slidingly connected in the first movable slot (631), one end of the locking rod (636) is fixedly connected with the sliding block (635), and a stress rod (637) is slidingly connected in the second movable slot (632), one end of the stress rod (637) is also fixedly connected with the sliding block (635). One end of the lock rod (636) is trapezoidal, the heat absorption block (633) will absorb the heat in the patient's body and transfer it to the metal spring (634), causing the metal spring (634) to change phase and elongate, thereby pushing the sliding block (635) to move, the movement of the sliding block (635) drives the lock rod (636) to move, so that one end of the lock rod (636) is inserted into the limiting groove (626) on the blocking block (624).

2. A rib fracture repair device for use in thoracic surgery according to claim 1, characterized in that: The surface of the main body (1), the pneumatic flexible clamping jaw (2) and the contact piece (5) is coated with a bioactive coating.

3. A rib fracture repair device for use in thoracic surgery according to claim 1, characterized in that: The locking mechanism (3) comprises a mounting groove (301) formed in the main body (1), a rotating plate (302) rotatably connected in the mounting groove (301), guide grooves (303) formed in the inner walls of the front and rear sides of the mounting groove (301), a first locking groove (304) formed in the lower end of the guide groove (303), a cavity formed in the rotating plate (302), first locking blocks (305) slidingly inserted into the two ends of the cavity, pull blocks (306) fixedly connected to the first locking blocks (305), a pull spring (307) fixedly connected between the two first locking blocks (305), and a second locking block (308) fixedly connected to the bottom surface of the rotating plate (302).

4. A rib fracture repair device for use in thoracic surgery according to claim 1, characterized in that: The connecting piece (4) comprises an insertion plate (401) fixedly connected to the side surface of the main body (1), a second locking groove (402) formed in the end of the insertion plate (401) away from the main body (1), and a bending groove (403) formed in the end of the insertion plate (401) close to the main body (1).

5. A rib fracture repair device for use in thoracic surgery according to claim 1, characterized in that: The contact piece (5) comprises a hollow cylinder (501) uniformly connected to the main body (1) and the pneumatic flexible clamping jaw (2), a contact block (502) slidingly inserted into one end of the hollow cylinder (501), circular grooves (503) annularly formed in the contact block (502), springs (504) fixedly connected to the inner walls of the circular grooves (503) and fixedly connected to the other ends of the springs (504), and fixed rings (505) fixedly connected to the outer circles of the contact blocks (502) and fixedly connected to the inner walls of the hollow cylinders (501).

6. A rib fracture repair device for use in thoracic surgery according to claim 5, characterized in that: The fixed ring (505) is made of polylactic acid degradable material.

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