CN119949997B - Rib fracture repair device for thoracic surgery - Google Patents

Abstract

The invention belongs to the technical field of medical appliances, and particularly relates to a rib fracture repair device for thoracic surgery, which comprises a main body, wherein pneumatic flexible clamping jaws are arranged at four corners of the bottom surface of the main body, contact pieces are arranged on the bottom surface of the main body and the pneumatic flexible clamping jaws, a locking mechanism is arranged on the main body, a connecting piece is arranged on the side surface of the main body, an adjusting mechanism is arranged on the main body and used for controlling the state of the pneumatic flexible clamping jaws, the adjusting mechanism comprises a gas transmission part, the gas transmission part is arranged on the main body and used for injecting air into the pneumatic flexible clamping jaws, a blocking part is arranged at the lower end of the gas transmission part and used for controlling unidirectional flow of air flow, and a reinforcing part is also arranged on the main body and used for fixing the blocking part. The invention can automatically adjust the pressure applied to the rib according to different stages of patient rehabilitation.

Description

Rib fracture repair device for thoracic surgery

Technical Field

The invention belongs to the technical field of medical appliances, and particularly relates to a rib fracture repair device for chest surgery.

Background

In chest surgery, the treatment of rib fractures typically requires the use of external or internal fixation devices to ensure proper healing of the fracture site. Traditional orthopedic fixation devices mainly include rigid metal splints, screw and steel plate systems, strap-type fixation devices, and the like.

According to the self-pressurizing rib bone fracture plate fixing device and the self-pressurizing rib bone fracture plate fixing method, the fixed first claw, the fixed second claw, the fixed third claw and the fixed fourth claw are arranged at the upper end of the bone fracture plate main body, the movable fifth claw, the movable sixth claw, the movable seventh claw and the movable eighth claw are arranged at the lower end of the bone fracture plate main body, the upper end claw and the movable lower end claw are arranged in an aligned mode, the bone fracture plate main body is hung at a rib fracture position by the claws when the self-pressurizing rib bone fracture plate fixing device is used, four adjusting nails at the rear end of the bone fracture plate are sequentially screwed by a screwdriver, when the adjusting nails are screwed, the end portions of the adjusting nails can be meshed with teeth on the inner wall of a cam side of a transmission groove, so that the fifth claw, the sixth claw, the movable seventh claw and the movable eighth claw are close to the first claw, the movable second claw, the movable third claw and the movable fourth claw along a sliding groove, and the movable rib are tightly pressed against the rib, the movable rib fracture plate can be independently adjusted, the tightness of each group of self-pressurizing rib bone fracture plate is achieved, the self-pressurizing rib plate can not be clamped, and the clamping function of the self-pressurizing rib plate can be guaranteed, and the clamping device can not be clamped and clamped by the existing pressurizing rib plates.

However, it is not easy to find that the above-mentioned fixing device has some disadvantages in the actual use process, and the above-mentioned fixing device cannot take into consideration the change of the requirement of the fixing pressure at different stages in the rehabilitation process of the patient. The applied pressure is constant in the whole convalescence period, whether early or later, which may cause problems of insufficient early pressure to affect the healing speed, or excessive later pressure to cause unnecessary pain or even overfall, and the rigid fixing structure in the fixing device is difficult to completely adhere to the surface of the rib due to complex and curved rib shape, so that local pressure concentration is easily caused, the risk of bone injury is increased, and tiny displacement is possibly caused by respiratory motion to further affect the fixing effect.

Disclosure of Invention

The invention aims to provide a rib fracture repair device for thoracic surgery, which can automatically adjust the pressure applied to a rib according to different stages of patient rehabilitation.

The technical scheme adopted by the invention is as follows:

The rib fracture repair device for the chest surgery comprises a main body, wherein pneumatic flexible clamping jaws are arranged at four corners of the bottom surface of the main body, and contact pieces are arranged on the bottom surface of the main body and the pneumatic flexible clamping jaws;

the locking mechanism is arranged on the main body;

The connecting piece is arranged on the side surface of the main body;

the adjusting mechanism is arranged on the main body and used for controlling the state of the pneumatic flexible clamping jaw;

The adjusting mechanism comprises a gas transmission part, wherein the gas transmission part is arranged on the main body and used for injecting air into the pneumatic flexible clamping jaw, the lower end of the gas transmission part is provided with a plugging part for controlling unidirectional flow of air flow, and the main body is also provided with a reinforcing part for fixing the plugging part.

In a preferred embodiment, the surfaces of the body, the pneumatically flexible jaw and the contact are coated with a bioactive coating.

In a preferred scheme, locking mechanism includes the mounting groove, the mounting groove is seted up in the main part, the mounting groove internal rotation is connected with the rotor plate, the guide way has all been seted up to the front and back both sides inner wall of mounting groove, first locked groove has been seted up to the lower extreme of guide way, the cavity has been seted up on the rotor plate, and the equal sliding grafting in both ends of cavity has first locking piece, fixedly connected with draws the piece on the first locking piece, two fixedly connected with extension spring between the first locking piece, the bottom surface fixedly connected with second locking piece of rotor plate.

In a preferred scheme, the connecting piece includes the picture peg, picture peg fixed connection is in the side of main part, the second locked groove has been seted up to the one end that the picture peg was kept away from the main part, the one end that the picture peg is close to the main part has seted up the bending groove.

In a preferred scheme, the contact comprises a hollow cylinder, the hollow cylinder is uniformly distributed and connected to the main body and the pneumatic flexible clamping jaw, one end of the hollow cylinder is slidably inserted with a contact block, a circular groove is formed in the contact block in an annular distribution mode, a spring is fixedly connected to the inner wall of the circular groove, the other end of the spring is fixedly connected with the hollow cylinder, a fixing ring is fixedly connected to the outer ring of the contact block, and the outer ring of the fixing ring is fixedly connected with the inner wall of the hollow cylinder.

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

In a preferred scheme, the gas transmission part comprises a gas inlet end, the gas inlet end is arranged at the center of the main body, a gas transmission pipeline is communicated below the gas inlet end, and the other end of the gas transmission pipeline is connected with the pneumatic flexible clamping jaw.

In a preferred scheme, the shutoff portion includes the cover piece, the cover piece passes through branch fixed connection on the inner wall of inlet end, sliding grafting has the lifter on the cover piece, the lower extreme fixedly connected with limiting plate of lifter, the upper end fixedly connected with shutoff piece of lifter, and the central department of shutoff piece has seted up the toper recess, the outside cover of lifter is equipped with the pressure spring, and the both ends of pressure spring respectively with shutoff piece and cover piece fixed connection, the spacing groove has been seted up to the both sides of shutoff piece.

In a preferred scheme, the reinforcement portion includes first movable groove and second movable groove, first movable groove and second movable groove are all offered in the main part, and the second movable groove is located first movable groove top, the heat absorption piece has all been fixedly inlayed to the both sides of main part, be provided with the metal spring in the first movable groove, and the one end and the heat absorption piece fixed connection of metal spring, the other end fixedly connected with slider of metal spring, sliding connection has the locking lever in the first movable groove, and the one end and the slider fixed connection of locking lever, sliding connection has the atress pole in the second movable groove, and the one end and the slider fixed connection of atress pole.

In a preferred embodiment, one end of the lock rod is trapezoidal.

The invention has the technical effects that:

The dynamic pressure management of the rib fracture part can be realized through the synergistic effect of the pneumatic flexible clamping jaw and the contact piece. The design of the pneumatically flexible jaw allows it to more closely conform to irregularly shaped rib surfaces, thereby enhancing stability and reliability of fixation. Compared with the traditional rigid fixing structure, the flexible clamping jaw can better disperse the force applied to the rib, reduce the risk of local pressure concentration, reduce the possibility of tiny displacement caused by respiratory motion, ensure that the fracture part maintains correct alignment during the whole healing period, and the spring and degradable material in the contact piece can gradually reduce the pressure applied to the rib during the healing process, so that the problem of excessive compression or crusting caused by long-time fixation is prevented. The pressure regulating mechanism is not only beneficial to accelerating fracture healing, but also remarkably improves the postoperative comfort of patients;

The invention ensures the high-efficiency sealing performance of the gas transmission system through the unique design of the reinforcing part, and effectively prevents gas leakage. The phase change characteristic of the metal spring under the action of body temperature enables the lock rod to be automatically inserted into the limit groove on the plugging block, so that the plugging block is stably locked. Even when the patient moves daily, the locking mechanism can ensure the stability of the internal pressure of the pneumatic system, maintain the tight fixation of the clamping jaw to the rib, provide reliable physical support for fracture healing, and avoid the fixation failure risk caused by air leakage;

The invention allows doctors to quickly assemble the repair assembly which accords with the individual structure according to the specific CT scanning result through the design of the modularized main body. Not only meets the specific requirements of different patients on the length and the curvature, but also simplifies the preparation process before operation and shortens the operation time. In addition, the design of locking mechanism and connecting piece has realized the quick and firm connection between the adjacent main part, has improved the convenience and the efficiency of operation, has reduced the operation complexity, also is convenient for later stage adjustment or dismantlement work simultaneously.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the structure of a single body of the present invention;

FIG. 3 is a top plan view of FIG. 2 of the present invention;

FIG. 4 is a schematic view showing the main body of the present invention and the locking mechanism in an exploded manner;

FIG. 5 is an enlarged schematic view of portion A of FIG. 4 in accordance with the present invention;

FIG. 6 is a cross-sectional view of a rotating plate of the present invention;

FIG. 7 is a side cross-sectional view of the body of the present invention;

FIG. 8 is a top cross-sectional view of the body of the present invention;

FIG. 9 is an enlarged schematic view of portion B of FIG. 7 in accordance with the present invention;

FIG. 10 is a disassembled schematic of FIG. 7 in accordance with the present invention;

FIG. 11 is a cross-sectional view of a contact of the present invention;

fig. 12 is an enlarged schematic view of the portion C shown in fig. 11 according to the present invention.

In the drawings, the list of components represented by the various numbers is as follows:

1. a main body; 2, a pneumatic flexible clamping jaw, 3, a locking mechanism, 4, a connecting piece, 5, a contact piece, 6, and an adjusting mechanism;

301. Mounting groove 302, rotating plate 303, guide groove 304, first locking groove 305, first locking block 306, pulling block 307, tension spring 308, second locking block;

401. inserting plate; 402, second locking groove, 403, bending groove;

501. hollow cylinder 502, contact block 503, round groove 504, spring 505, fixing ring;

61. 62, a plugging part, 63, a reinforcing part;

611. 612, gas pipeline;

621. Sleeve block 622, lifting rod 623, limiting disc 624, blocking block 625, pressure spring 626 and limiting groove;

631. first movable groove 632, second movable groove 633, heat absorbing block 634, metal spring 635, sliding block 636, locking bar 637, force bar.

Detailed Description

In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present invention is not limited to the specific embodiments disclosed below.

Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic can be included in at least one implementation of the invention. The appearances of the phrase "in one preferred embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.

Further, in describing the embodiments of the present invention in detail, the cross-sectional view of the device structure is not partially enlarged to a general scale for convenience of description, and the schematic is only an example, which should not limit the scope of protection of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in actual fabrication.

Referring to fig. 1,2, 7 and 10, the embodiment provides a rib fracture repair device for thoracic surgery, which comprises a main body 1, wherein pneumatic flexible clamping jaws 2 are arranged at four corners of the bottom surface of the main body 1, and contact pieces 5 are arranged on the bottom surface of the main body 1 and the pneumatic flexible clamping jaws 2;

a locking mechanism 3, the locking mechanism 3 being provided on the main body 1;

a connecting piece 4, wherein the connecting piece 4 is arranged on the side surface of the main body 1;

The adjusting mechanism 6 is arranged on the main body 1 and is used for controlling the state of the pneumatic flexible clamping jaw 2;

The adjusting mechanism 6 comprises a gas transmission part 61, wherein the gas transmission part 61 is arranged on the main body 1 and is used for injecting air into the pneumatic flexible clamping jaw 2, a blocking part 62 is arranged at the lower end of the gas transmission part 61 and is used for controlling unidirectional flow of air flow, and a reinforcing part 63 is also arranged on the main body 1 and is used for fixing the blocking part 62;

The surfaces of the body 1, the pneumatically flexible jaw 2 and the contact 5 are coated with a bioactive coating.

In this embodiment, two adjacent bodies 1 are rapidly connected or disconnected by the locking mechanism 3 and the connecting piece 4, and the tension of the pneumatic flexible clamping jaw 2 is adjusted by the adjusting mechanism 6, so that the fracture part is accurately fixed. The application of the bioactive coating not only improves the compatibility of the device with human tissue, but also helps to reduce the risk of infection and promote fracture healing.

The pneumatic flexible clamping jaw 2 adopts the products which are disclosed in the market at present, and when in model selection, the requirements of the application are met as far as possible on the premise that the specification and the use situation are suitable, and the specific model specification is not limited.

Next, referring to fig. 2 to 7 again, the locking mechanism 3 includes a mounting groove 301, the mounting groove 301 is formed on the main body 1, the mounting groove 301 is rotationally connected with a rotating plate 302, guide grooves 303 are formed on inner walls of front and rear sides of the mounting groove 301, a first locking groove 304 is formed at a lower end of the guide groove 303, a cavity is formed on the rotating plate 302, two ends of the cavity are slidably inserted with first locking blocks 305, a pull block 306 is fixedly connected to the first locking blocks 305, a tension spring 307 is fixedly connected between the two first locking blocks 305, and a second locking block 308 is fixedly connected to a bottom surface of the rotating plate 302.

Referring to fig. 2, the connector 4 includes a plug 401, the plug 401 is fixedly connected to a side surface of the main body 1, a second locking groove 402 is formed at one end of the plug 401 away from the main body 1, and a bending groove 403 is formed at one end of the plug 401 close to the main body 1.

In this embodiment, preoperative preparation determines the fracture type and extent from the CT scan results, selecting an appropriate number of modular bodies 1 to combine into a repair assembly of the desired length and curvature. The specific operation steps are that firstly, the two first locking blocks 305 are close to each other by pulling the two pulling blocks 306, so that the first locking blocks 305 are driven to be separated from the first locking grooves 304. Next, the rotating plate 302 is rotated, and the card 401 on the other body 1 is completely inserted into the mounting groove 301 on the first body 1. Subsequently, the two first locking pieces 305 are pulled toward each other again, and then the rotating plate 302 is rotated reversely. When the first locking piece 305 enters the guide groove 303, the pull piece 306 is released, so that the first locking piece 305 is far away from each other under the elastic restoring force of the tension spring 307. As the rotating plate 302 rotates, the first locking piece 305 is located exactly at the first locking groove 304 when the second locking piece 308 on the rotating plate 302 is located in the second locking groove 402 of the insert plate 401. At this time, the two first locking pieces 305 are pushed away from each other again by the elastic restoring force of the tension spring 307 so that they are inserted into the first locking grooves 304, thereby fixing the rotation plate 302 and completing the splicing between the adjacent two bodies 1. And (3) according to the required length, repeating the steps to splice a plurality of main bodies 1. When the spliced repair assembly is bent at the curvature of the rib, the repair assembly is bent at a small amplitude through the bending groove 403 on the plugboard 401, so that the curvature of the repair assembly is matched with that of the rib.

In the bone surgery, a prosthetic component formed by splicing a plurality of main bodies 1 is first placed at a rib fracture site. By slightly pressing the main body 1 part and bending the joint between the two main bodies 1 again by a small extent by using the bending groove 403, the repair assembly is ensured to be tightly attached to the rib.

The insert plate 401 is made of a resilient metal plate. The leftmost body 1 need not be provided with a connector 4.

Next, referring to fig. 11 and 12 again, the contact 5 includes a hollow cylinder 501, the hollow cylinder 501 is uniformly distributed and connected to the main body 1 and the pneumatic flexible clamping jaw 2, one end of the hollow cylinder 501 is slidably inserted with a contact block 502, a circular groove 503 is formed in the contact block 502 in an annular distribution, the inner wall of the circular groove 503 is fixedly connected with a spring 504, the other end of the spring 504 is fixedly connected with the hollow cylinder 501, an outer ring of the contact block 502 is fixedly connected with a fixing ring 505, and the outer ring of the fixing ring 505 is fixedly connected with the inner wall of the hollow cylinder 501, and the fixing ring 505 is made of polylactic acid degradable material.

In this embodiment, the body 1 and the pneumatically flexible jaw 2 are provided with contacts 5, which contacts 5 are in close contact with the ribs. After a period of time, the retaining ring 505 of polylactic acid degradable material used for the contact 5 will degrade and be absorbed in the human body. Once the retaining ring 505 is removed, the contact block 502 is free to slide within the hollow cylinder 501 and, under the elastic restoring force of the spring 504, the contact block 502 is pushed to retract into the hollow cylinder 501 until the hollow cylinder 501 is flush with the surface of the contact block 502. This process helps to relieve pressure applied to the ribs, not only improves patient comfort, but also prevents incrustation due to overfall (specifically: in early and mid-stages of rehabilitation, the device provides greater pressure to promote healing when the ribs are in the incrustation stage, while in mid-to-late stages, i.e., after rib incrustation is completed, the pressure is gradually reduced to a more comfortable level to avoid overfall and improve patient comfort and safety).

Referring again to fig. 7 and 8, the air delivery portion 61 includes an air inlet end 611, the air inlet end 611 is disposed at the center of the main body 1, an air delivery pipe 612 is connected below the air inlet end 611, and the other end of the air delivery pipe 612 is connected to the pneumatic flexible clamping jaw 2.

It should be added that the upper end of the air inlet end 611 should be provided with a quick-release connector (not shown) connected with the upper pipeline of the external air pump so as to facilitate quick connection, and meanwhile, one end of the air pipeline 612 is provided with four air outlet pipelines which are respectively connected with four pneumatic flexible clamping jaws 2.

Referring to fig. 9 and 10 again, the plugging portion 62 includes a sleeve block 621, the sleeve block 621 is fixedly connected to the inner wall of the air inlet end 611 through a supporting rod, a lifting rod 622 is slidably inserted on the sleeve block 621, a limiting disc 623 is fixedly connected to the lower end of the lifting rod 622, a plugging block 624 is fixedly connected to the upper end of the lifting rod 622, a conical groove is formed in the center of the plugging block 624, a pressure spring 625 is sleeved on the outer portion of the lifting rod 622, two ends of the pressure spring 625 are fixedly connected with the plugging block 624 and the sleeve block 621 respectively, and limiting grooves 626 are formed in two sides of the plugging block 624.

In this embodiment, an external air pump is in communication with the air inlet 611 via a conduit, pushing the block 624 and the lifting rod 622 downward under the action of the air pressure, and compressing the compression spring 625. At this time, the gas enters through the gap formed between the blocking piece 624 and the gas inlet end 611, and then flows into the pneumatic flexible clamping jaw 2 at the four corners of the bottom of the main body 1 along the gas pipe 612, so that the pneumatic flexible clamping jaw 2 bends and firmly holds the rib. The pneumatic flexible clamping jaw 2 can be tightly attached to the surface of an irregular rib, so that the fixing stability is improved, the micro displacement caused by movement or respiration is reduced, and the flexible design can play a role in dispersing the force applied to the rib, so that bone injury is avoided. After the pneumatic flexible clamping jaw 2 firmly clamps 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 upwards under the action of the elastic restoring force of the pressure 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.

Referring to fig. 10 again, the reinforcement portion 63 includes a first movable slot 631 and a second movable slot 632, the first movable slot 631 and the second movable slot 632 are both opened on the main body 1, the second movable slot 632 is located above the first movable slot 631, the two sides of the main body 1 are both fixedly inlaid with a heat absorbing block 633, a metal spring 634 is disposed 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 slider 635, the first movable slot 631 is slidably connected with a lock lever 636, one end of the lock lever 636 is fixedly connected with the slider 635, the second movable slot 632 is slidably connected with a force rod 637, one end of the force rod 637 is also fixedly connected with the slider 635, and one end of the lock lever 636 is trapezoid.

In this embodiment, after the prosthetic component composed of the plurality of bodies 1 is installed for a period of time, the heat absorbing block 633 absorbs the heat in the patient and transfers it to the metal spring 634, so that the metal spring 634 undergoes a phase change elongation, thereby pushing the slider 635 to move. The movement of the slider 635 moves the locking bar 636 such that one end of the locking bar 636 is inserted into the limit slot 626 on the block 624. The end of the locking bar 636 is trapezoidal, and as it is inserted continuously, it will contact the blocking block 624 and push it to move upwards, ensuring that the blocking block 624 is tightly attached to the air inlet end 611, thus preventing air leakage.

During disassembly, the air inlet 611 is inserted using a tapered rod that first contacts the two force bars 637, forcing them away from each other. The separation of the force bar 637 drives the two sliders 635 away from each other, thereby moving the two lock bars 636 away from each other, causing the lock bars 636 to disengage from the limit grooves 626. Subsequently, the lower end of the tapered rod presses down the block 624 so that the gas is discharged along the gap between the block 624 and the gas inlet end 611. After that, the flexible jaw 2 is pneumatically actuated to return it to its original shape, and the ribs are no longer fixed.

The metal spring 634 may be made of a memory alloy material. And automatically recovering to a preset shape after reaching a certain temperature. This feature allows the metal spring 634 to effectively expand and contract under the body temperature to push the lock lever 636 to move, and the metal spring 634 made of memory alloy is a well-known technology and will not be described herein.

The working principle of the invention is as follows:

The main body 1 is a basic frame of the whole device, and four corners of the bottom surface of the main body are provided with pneumatic flexible clamping jaws 2. The clamping jaws are pneumatically driven, and the tension can be adjusted by injecting air to ensure that the clamping jaws can closely fit the irregular rib surfaces, thereby improving the fixing effect and dispersing the applied pressure.

The adjusting mechanism 6 is responsible for controlling the state of the pneumatically flexible gripping jaw 2. It comprises a gas transmission part 61, a plugging part 62 and a reinforcing part 63. By injecting a suitable amount of air into the pneumatically flexible jaw 2, the jaw is bent and firmly grips the rib, while the seal 62 ensures that the gas does not leak, maintaining the required pressure.

The locking mechanism 3 and the connector 4 allow for quick connection and disconnection of adjacent bodies 1, allowing a physician to customize the repair assembly length and curvature to suit the patient's particular situation based on the CT scan results.

The contact 5 consists of a hollow cylinder 501 and a contact block 502, in which a spring 504 and a securing ring 505 of degradable material are contained. Over time, the retaining ring 505 gradually degrades and the contact block 502 may contract under the action of the spring 504, relieving pressure on the ribs and improving patient comfort.

The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention. Structures, devices and methods of operation not specifically described and illustrated herein, unless otherwise indicated and limited, are implemented according to conventional means in the art.

Claims (6)

1. The rib fracture repair device for the chest surgery is characterized by comprising a main body (1), wherein pneumatic flexible clamping jaws (2) are arranged at four corners of the bottom surface of the main body (1), and contact pieces (5) are arranged on the bottom surface of the main body (1) and the pneumatic flexible clamping jaws (2);

the locking mechanism (3) is arranged on the main body (1);

the connecting piece (4) is arranged on the side surface of the main body (1);

The adjusting mechanism (6) is arranged on the main body (1) and used for controlling the state of the pneumatic flexible clamping jaw (2);

the adjusting mechanism (6) comprises a gas transmission part (61), the gas transmission part (61) is arranged on the main body (1) and is used for injecting air into the pneumatic flexible clamping jaw (2), a blocking part (62) is arranged at the lower end of the gas transmission part (61) and is used for controlling unidirectional flow of air flow, and a reinforcing part (63) is further arranged on the main body (1) and is used for fixing the blocking part (62);

The gas transmission part (61) comprises a gas inlet end (611), the gas inlet end (611) is arranged at the center of the main body (1), a gas transmission pipeline (612) is communicated below the gas inlet end (611), and the other end of the gas transmission pipeline (612) is connected with the pneumatic flexible clamping jaw (2);

The plugging part (62) comprises a sleeve block (621), the sleeve block (621) is fixedly connected to the inner wall of the air inlet end (611) through a supporting rod, a lifting rod (622) is connected to the sleeve block (621) in a sliding mode, a limiting disc (623) is fixedly connected to the lower end of the lifting rod (622), a plugging block (624) is fixedly connected to the upper end of the lifting rod (622), a conical groove is formed in the center of the plugging block (624), a pressure spring (625) is sleeved outside the lifting rod (622), two ends of the pressure spring (625) are fixedly connected with the plugging block (624) and the sleeve block (621) respectively, and limiting grooves (626) are formed in two sides of the plugging block (624);

The reinforcing part (63) comprises a first movable groove (631) and a second movable groove (632), the first movable groove (631) and the second movable groove (632) are formed in the main body (1), the second movable groove (632) is located above the first movable groove (631), heat absorbing blocks (633) are fixedly inlaid on two sides of the main body (1), a metal spring (634) is arranged in the first movable groove (631), one end of the metal spring (634) is fixedly connected with the heat absorbing blocks (633), the other end of the metal spring (634) is fixedly connected with a sliding block (635), a lock rod (636) is connected in the first movable groove (631), one end of the lock rod (636) is fixedly connected with the sliding block (635), a stress rod (637) is connected in the second movable groove (632) in a sliding mode, and one end of the stress rod (637) is also fixedly connected with the sliding block (635).

One end of the lock rod (636) is trapezoid, the heat absorbing block (633) absorbs heat in a patient and transmits the heat to the metal spring (634), so that the metal spring (634) is subjected to phase change elongation, the sliding block (635) is pushed to move, the movement of the sliding block (635) drives the lock rod (636) to move, and one end of the lock rod (636) is inserted into the limit groove (626) on the plugging block (624).

2. A rib fracture repair device for thoracic surgery according to claim 1, characterized in that the surfaces of the body (1), the pneumatically flexible jaw (2) and the contact (5) are coated with a bioactive coating.

3. The rib fracture repair device for thoracic surgery according to claim 1, wherein the locking mechanism (3) comprises a mounting groove (301), the mounting groove (301) is formed in the main body (1), the rotating plate (302) is rotationally connected to the mounting groove (301), guide grooves (303) are formed in the inner walls of the front side and the rear side of the mounting groove (301), a first locking groove (304) is formed in the lower end of the guide groove (303), a cavity is formed in the rotating plate (302), first locking blocks (305) are slidably inserted into two ends of the cavity, pull blocks (306) are fixedly connected to the first locking blocks (305), tension springs (307) are fixedly connected between the two first locking blocks (305), and a second locking block (308) is fixedly connected to the bottom surface of the rotating plate (302).

4. The rib fracture repair device for thoracic surgery according to claim 1, wherein the connector (4) comprises a plugboard (401), the plugboard (401) is fixedly connected to the side face of the main body (1), a second locking groove (402) is formed in one end, far away from the main body (1), of the plugboard (401), and a bending groove (403) is formed in one end, close to the main body (1), of the plugboard (401).

5. The rib fracture repair device for thoracic surgery according to claim 1, wherein the contact piece (5) comprises a hollow cylinder (501), the hollow cylinder (501) is uniformly distributed and connected to the main body (1) and the pneumatic flexible clamping jaw (2), one end of the hollow cylinder (501) is slidably inserted with a contact block (502), circular grooves (503) are formed in the contact block (502) in an annular distribution, a spring (504) is fixedly connected to the inner wall of the circular groove (503), the other end of the spring (504) is fixedly connected with the hollow cylinder (501), the outer ring of the contact block (502) is fixedly connected with a fixing ring (505), and the outer ring of the fixing ring (505) is fixedly connected with the inner wall of the hollow cylinder (501).

6. A rib fracture repair device for thoracic surgery according to claim 5, wherein the fixing ring (505) is made of a polylactic acid degradable material.