A breast surgery flap retractor device

Abstract

This invention discloses a flap retractor device for breast surgery. The device comprises two hook arms arranged side-by-side; it also includes a connector drive assembly, which drives the two hook arm assemblies closer together or further apart via a pulling assembly. The hook arms are Z-shaped, comprising an upper part, a bent part, and a lower part connected sequentially from top to bottom. A connecting shaft is fixedly connected to the upper part, and a capillary guide groove is provided in the lower part. An inner groove is formed on the hook arm, penetrating the upper part, the bent part, and the lower part. The bottom of the inner groove is connected to a locking groove, which cooperates with a lower cover plate to hold absorbent cotton. The bottom of the absorbent cotton contacts the capillary guide groove. A camera is installed on the side wall of the inner groove near the connecting shaft, and suction heads are installed on both sides of the camera. The suction heads are used to attract liquid from the absorbent cotton. An air extraction device is installed inside the connecting shaft, and the air extraction device is connected to the suction heads. The overall structure of this invention is compact and ingeniously designed.

Description

Technical Field

[0001] This invention relates to the field of medical devices, specifically to a flap retractor device. Background Technology

[0002] Flap breast reconstruction is the latest technique in breast reconstruction surgery, capable of creating the most natural-looking breasts. In this method, doctors take tissue from parts of the patient's body, such as the back or abdomen, to create flaps of skin, fat, and muscle to form a new breast.

[0003] During breast flap reconstruction surgery, a flap retractor device is required. Existing flap retractor devices have problems such as insufficient compactness, which increases the need for surgical space and makes it difficult for doctors to handle the flap from multiple angles to complete the breast flap reconstruction surgery. For example, published patents CN113069156B, CN211796657U, and CN215874754U have the above-mentioned problems. Although CN214761240U works in a small size, it is not convenient for doctors to handle it from multiple angles. The anti-slip design of the retractor part can also slip due to the action of human tissue fluid at the flap site, and the movement of the retractor part can also increase the patient's discomfort. Summary of the Invention

[0004] In view of the problems existing in the prior art, the present invention provides a flap retractor device for breast surgery, which solves at least one of the above-mentioned technical problems.

[0005] The technical solution of the present invention is: a flap retractor device for breast surgery, characterized in that it comprises a retractor arm assembly consisting of two retractor arms arranged side by side;

[0006] It also includes a connector drive assembly, which drives two hook arm assemblies to move closer or further apart through a pulling assembly;

[0007] The pulling assembly includes a take-up shaft, connecting belts, and an adjusting assembly. There are two connecting belts, one end of which is provided with a collar, and the other end is wound onto the take-up shaft. The adjusting assembly includes a connecting frame, a second auxiliary wheel, a second torsion spring, and a first auxiliary wheel. The connecting frame is rotatably connected to the inner wall of the connecting seat. The second and first auxiliary wheels are rotatably connected to the connecting frame and press the two connecting belts together. One end of the second torsion spring is inserted into the inner wall of the connecting seat, and the other end is hooked on the side of the connecting frame that is turned away from the moisture-absorbing assembly.

[0008] The connector drive assembly is connected to an angle-adjustable hand lever. The length direction of the hand lever is perpendicular to the extension direction of the hook arm. The connector drive assembly includes a drive motor and a connecting seat. The drive motor is fixedly connected to the connecting seat, and the power output end of the drive motor is fixed to a winding shaft. The adjustment assembly is installed in the connecting seat to guide and fit the two connecting strips. The connecting seat is provided with a sliding opening.

[0009] The hook arm is Z-shaped and includes an upper part, a bent part, and a lower part connected sequentially from top to bottom. The upper part is fixedly connected to a connecting shaft, and the lower part is provided with a capillary guide groove. An inner groove is formed on the hook arm, which runs through the upper part, the bent part, and the lower part. The bottom of the inner groove is connected to a snap-fit ​​groove, which cooperates with a lower cover plate to clamp the absorbent cotton. The bottom of the absorbent cotton is in contact with the capillary guide groove.

[0010] A camera is installed on the side wall of the inner groove near the connecting shaft, and suction heads are installed on both sides of the camera. The suction heads are used to attract liquid on the absorbent cotton. An air extraction device is installed inside the connecting shaft, and the air extraction device is connected to the suction heads.

[0011] The collar is fixed to the outer side of the connecting shaft. The upper end of the connecting shaft is connected to a sliding block that mates with the sliding opening. The sliding block is fixedly connected to a moving block that is slidably connected to the connecting seat. The moving block and the connecting seat are connected by a spring assembly.

[0012] More preferably, the upper end of the connecting shaft is rotatably connected to a sliding block that cooperates with the sliding opening, and a first torsion spring is sleeved on the outer side of the connecting shaft. One end of the first torsion spring is fixed to the connecting shaft, and the other end is connected to the sliding block through a connecting spring piece made of spring steel.

[0013] More preferably, the handheld lever includes a connecting tube, a connecting assembly, and a handle connected in sequence, with the end of the connecting tube connected to the connector drive assembly;

[0014] An airbag is movably installed inside the connecting tube;

[0015] The connecting assembly includes a connecting rope, one end of which is connected to the handle, and the other end of which passes through the airbag. The end of the connecting rope that passes through the airbag is provided with a limiting structure to prevent the airbag from being pulled out.

[0016] The airbag includes two guide airbags and circumferentially arranged partition airbags; the two guide airbags are connected by partition airbags, and the two guide airbags are provided with perforations for the pull rope to pass through, the perforations being located in the area between adjacent partition airbags on the guide airbags.

[0017] A guide ring is fixed inside the connecting pipe, and a hole is opened on the guide ring for the connecting rope to pass through;

[0018] The guide ring is located between the handle and the limiting structure;

[0019] The air extraction device is connected to the airbag via a second pipe.

[0020] More preferably, the end of the connecting tube adjacent to the handle is a damping cavity, and the airbag and the guide ring are located in the damping cavity;

[0021] The end of the connecting pipe away from the handle is a receiving cavity. A partition is provided between the damping cavity and the receiving cavity. The damping cavity is used to hold damping oil, while the receiving cavity is used to hold the drive motor. The second pipe passes through the partition and is sealed.

[0022] More preferably, the connecting rope consists of, from the outside to the inside, a steel wire mesh layer, a rubber layer, a spiral copper wire layer, and a composite rope core. The composite rope core is made of iron wire and aluminum wire twisted together, and the inside of the connecting tube is fully filled with damping oil.

[0023] A further preferred embodiment includes a pressing structure that presses the two connecting strips toward the connecting seat on the side away from the connecting shaft.

[0024] More preferably, a moisture-absorbing component is installed inside the connecting seat and on one side of the adjusting component, which is subject to the tension deformation of the adjusting component and absorbs moisture from the connecting belt.

[0025] More preferably, the two connecting strips are provided with a partition block at the position where they enter the connecting seat. Each partition block has a ball bearing rolledly connected to it on one side facing the two connecting strips, and an alcohol-soaked cotton ball is placed inside the partition block to contact the ball bearing.

[0026] In a further preferred embodiment, a touch panel is embedded in the end of the handle away from the pull rope, and the drive motor, the camera, and the air extraction device are all electrically connected to the touch panel.

[0027] More preferably, the lower end is a pointed structure that is narrow at the bottom and wide at the top, and the bottom of the pointed structure is an end plane with a length of 3mm;

[0028] The tip structure expands outward from bottom to top at a 10° tilt angle.

[0029] More preferably, the sliding block is provided with a graphite assembly for lubricating the first torsion spring.

[0030] The graphite assembly includes a fixed block and a lubricating block, the lubricating block and the fixed block are detachably connected, and the fixed block is fixedly connected to the sliding block toward the inner wall of the moving block;

[0031] The lubricating block is made of graphite, and the lubricating block is arc-shaped on the side facing the outer side of the first torsion spring assembly connecting shaft.

[0032] One side of the lubricating block rests against the inner wall of the sliding block facing the moving block, and the connecting spring passes through the fixed block.

[0033] More preferably, the spring assembly includes a fixed plate and two springs, the fixed plate is fixed to the connecting seat, one end of the two springs is connected to the fixed plate, and the other end of the two springs is fixedly connected to the moving block.

[0034] Beneficial effects:

[0035] The present invention has a compact overall structure and ingenious design. The movement of the hook arm in the hook arm assembly can be realized through a more compact joint drive assembly and pulling assembly, and the hook arm basically does not rotate during the process, improving the comfort of contact with the human body. Due to the cooperation of the capillary guide groove with the sanitary napkin and the air extraction device, the hook arm will not slide randomly without obvious anti-slip protrusions or grooves, which is more patient-friendly. The hook arms can move away from or closer to each other, thereby realizing the adjustment of the hook's range of action.

[0036] In this invention, the combination of the connecting assembly and the airbag of the suction device allows the angle between the handle and the connecting tube to be maintained after adjustment and to bear force, making it easier for doctors to handle the breast surgical flap retractor device from multiple angles to complete the surgical procedure, making it more convenient.

[0037] In this invention, the connecting belt is sterilized and disinfected when it enters and exits through the separator block. After the connecting belt enters the connecting seat, the alcohol squeezed out during winding is absorbed by the moisture-absorbing component. The absorption effect of alcohol is better when the connecting belt is wound up. It can also hinder the rapid movement of the connecting belt and prevent the hook arm from moving too fast after contacting the human skin flap, which may cause discomfort to the patient. Attached Figure Description

[0038] Figure 1 This is a schematic diagram of the structure of the present invention;

[0039] Figure 2 This is a schematic diagram of the overhead structure of the connector drive assembly in this invention;

[0040] Figure 3 This is a schematic diagram of the structure of the connector drive assembly in this invention;

[0041] Figure 4 This is a cross-sectional view of the connector drive assembly at the sliding joint in this invention;

[0042] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0043] Figure 6 This is a cross-sectional view of the connector drive assembly at the inner nozzle in this invention;

[0044] Figure 7 for Figure 6 Enlarged view of point B in the middle;

[0045] Figure 8 This is a schematic diagram of the moisture-absorbing component in this invention;

[0046] Figure 9 This is a cross-sectional view of the connecting pipe in this invention;

[0047] Figure 10 This is a cross-sectional view of the connecting rope in this invention;

[0048] Figure 11 This is a schematic diagram of the airbag structure in this invention. Detailed Implementation

[0049] See Figures 1 to 11 Specific embodiment 1, a breast surgery flap retractor device, includes a retractor arm assembly consisting of two retractor arms arranged side by side; it also includes a connector drive assembly, which drives the two retractor arm assemblies to move closer or further apart by a pulling assembly.

[0050] The connector drive assembly is connected to an angle-adjustable handheld lever, the length of which is perpendicular to the extension direction of the hook arm. The handheld lever includes a connecting tube, a connecting assembly, and a handle connected in sequence. The end of the connecting tube is connected to the connector drive assembly. An airbag 202 is movably disposed inside the connecting tube 3; the specific structure of the airbag 202 is described in the appendix to the instruction manual. Figure 11 As can be seen, it specifically includes two guide bladders, one above the other, and a partition bladder that acts as a separator in the middle. A gap is left between the air bladder and the inner wall of the connecting tube 3. The end of the connecting tube is rotatably connected to the handle.

[0051] The connecting assembly 2 includes a connecting rope 201 connected to the handle 1. The connecting rope 201, from the outside to the inside, consists of a steel wire mesh layer, a rubber layer, a spiral copper wire layer, and a composite rope core (attached). Figure 10As can be seen, the composite rope core is made of twisted iron wire and aluminum wire. The thickness of the steel wire mesh layer is 0.1cm, the thickness of the rubber layer is 0.25cm, the diameter of the iron wire is 0.6cm, and the diameter of the aluminum wire is 0.3cm, which improves the resilience of the composite rope core. Anti-slip grooves are provided on the surface of the iron wire and aluminum wire. Alternatively, only twisted iron wire and aluminum wire can be used. The inside of the connecting tube 3 is fully filled with damping oil, which can increase the resistance to the movement of the internal structure. The other end of the pull rope 201 passes through the airbag 202 and is provided with a limiting structure to prevent the airbag from being pulled out. The above-mentioned limiting structure can be used to fix the rubber material of the pull rope 201. A protrusion or a ring sleeve made of rubber is provided and fixed. One end of the pull rope 201 and the protrusion or ring sleeve are located inside the connecting tube 3. The pull rope 201 is distributed in a ring shape around the axis of the connecting tube 3 and is separated by the corresponding compartment of the airbag 202. A guide ring 203 is fixedly connected to the inner wall of the connecting tube 3 on the side near the handle 1. The pull rope 201 passes through the guide ring 203 and can rotate in the corresponding hole of the guide ring 203. The guide ring 203 is located between the protrusion or ring sleeve and the handle 1, and the guide ring 203 is located at two-thirds of the height of the handle 1.

[0052] The upper part of the handle 1 is cylindrical and the lower part is a combination of a hemisphere and a cone. The pull cord 201 is connected to the spherical surface of the hemisphere and the tip of the cone is connected to the cylindrical part. An anti-slip structure, such as an anti-slip texture or an anti-slip sleeve, can be provided on the outside of the cylindrical part of the handle 1. A raised edge is provided at the end of the cylindrical part away from the cone. The raised edge can prevent the user's hand from slipping off the upper part of the breast surgery flap retractor device. A touch panel is embedded in the end of the handle 1 away from the pull cord 201. The touch panel is located on the side of the cylindrical part away from the cone. The battery is installed inside the handle 1.

[0053] The pulling assembly 8 includes a take-up shaft 801, a connecting belt 802, and an adjusting assembly. There are two connecting belts 802, each with a collar 803 at one end and the other end wound onto the take-up shaft 801. After the take-up shaft 801 rotates, the two connecting belts 802 can be wound or unwound. Both the collar 803 and the connecting belt 802 are made of polyvinyl chloride.

[0054] The adjusting assembly includes a connecting frame 811, a second auxiliary wheel 809, a second torsion spring 810, and a first auxiliary wheel 808. The connecting frame 811 is rotatably connected to the inner wall of the connecting seat 401. The second auxiliary wheel 809 and the first auxiliary wheel 808 are rotatably connected to the connecting frame 811 and press the two connecting belts 802 together. One end of the second torsion spring 810 is inserted into the inner wall of the connecting seat 401, and the other end is hooked when the connecting frame 811 turns away from the moisture-absorbing assembly. When the winding shaft 801 winds up the connecting belts 802, the connecting belts 802 press against the first auxiliary wheel 808 and move away from the second auxiliary wheel 809. This causes the connecting frame 811 to rotate, which in turn causes the second torsion spring 810 to be pulled apart. Conversely, when the take-up shaft 801 unwinds the connecting belt 802, the restoring force of the second torsion spring 810 drives the connecting frame 811 to rotate in the opposite direction. One end of the connecting frame 811 is sleeved on the connecting post fixed between the upper and lower inner walls of the connecting seat 401 to achieve rotation. The outer surfaces of the second auxiliary wheel 809 and the first auxiliary wheel 808 are both fitted with medical silicone sleeves. Under the action of the second auxiliary wheel 809 and the first auxiliary wheel 808, the two connecting belts 802 are squeezed together, which makes it easier for the two connecting belts 802 to be wound onto the take-up shaft 801.

[0055] Drive assembly 4 includes a drive motor 402 and a connecting seat 401. The inner wall of the connecting seat 401 is hollow. The drive motor 402 is fixedly connected to the lower end of the connecting pipe 3. The output end of the connecting seat 401 is fixedly connected to the take-up shaft 801. The output end of the drive motor 402 is rotatably connected to the upper side wall of the connecting seat 401. A brake is fixedly connected to the other end of the drive motor 402 located on the take-up shaft 801. The brake is embedded in the lower inner wall of the connecting seat 401 and fixedly connected. The brake can stop the drive motor 402 from rotating. The connecting seat 401 is fixed to the lower end of the connecting pipe 3. The adjusting component is installed inside the connecting seat 401 to guide and fit the two connecting strips 802. The extended side of the connecting seat 401 is provided with a sliding opening. The extended side of the connecting seat 401 is the triangular component away from the drive motor 402. The two ends of the sliding opening in the length direction are arc-shaped. The side wall of the sliding opening of the connecting seat 401 facing the drive motor 402 is provided with an inwardly protruding inner nozzle 4011. The inner nozzle 4011 is flared on the side facing the sliding opening and is vertically... The two straight sides are arc-shaped to facilitate the entry of the two connecting straps 802 into the inner nozzle 4011. The two connecting straps 802 enter the interior of the connecting seat 401 from the inner nozzle 4011. Vertically distributed isosceles trapezoidal partition blocks 804 are fixedly connected inside the inner nozzle 4011. The two inclined surfaces of the partition blocks 804 face the two connecting straps 802 respectively. Roller balls are rolled on the side of the partition blocks 804 facing the two connecting straps 802, and the partition blocks 804 are filled with alcohol that contacts the roller balls. When the two connecting strips 802 are wound or unwound, the cotton passes through the ball bearings. The ball bearings carry alcohol to the side of the two connecting strips 802 facing the ball bearings. The long bottom side of the separator block 804 faces the slide opening. The ball bearings are evenly distributed with a spacing less than one-third of the ball bearing diameter. There are at least four ball bearings in the height direction of the connecting strips 802. The separator block 804 is provided with a medical rubber stopper on the side facing the slide opening, so that alcohol can be injected into the alcohol cotton using a syringe. The medical rubber stopper is located in the flared part of the inner nozzle 4011.

[0056] The hook arm assembly 6 includes a Z-shaped hook arm 606. The tip of the lower horizontal portion of the hook arm 606 has a 3mm long end face and a height equal to four-fifths of its thickness. A 10-degree inclined slope transitions between the end face and the lower horizontal portion of the hook arm 606. A connecting shaft 607 is fixedly connected to the upper horizontal portion of the hook arm 606. The lower horizontal portion of the hook arm 606 has a capillary guide groove 608 and an inner groove 602 at its converging end. A retaining groove 601 is located on the lower side of the inner groove 602. The retaining groove 601 engages with the lower cover plate 7, clamping absorbent cotton between them. When the retaining groove 601 engages with the lower cover plate 7 to clamp the absorbent cotton, the lower side of the lower cover plate 7 is flush with the lower side of the lower horizontal portion of the hook arm 606. A camera 603 is mounted on the side wall of the inner groove 602 facing the connecting shaft 607. The inner groove 602 has a tapered flared groove 604 on the upper horizontal portion of the hook arm 606, opening away from the sliding opening. Suction heads 605 are installed at the inner ends of both flared grooves 604. After the absorbent cotton is inserted, one upper end of the absorbent cotton is stretched into the tapered opening and recessed at the camera 603 to prevent it from being directly blocked. The absorbent cotton contacts one end of the capillary guide groove 608, and the other end of the capillary guide groove 608 is located on the inclined surface of the lower horizontal portion of the hook arm 606. The various capillary guide grooves 608 are distributed on the inclined surface of the lower horizontal portion of the hook arm 606. The hook arm includes an upper part, a bent part, and a lower part connected sequentially from top to bottom. The upper horizontal portion is the upper part, and the lower horizontal portion is the lower part.

[0057] An air extraction device 611 is installed inside the connecting shaft 607. A side pad 618 is provided on the outside of the air extraction device 611 for support. The two ends of the air extraction device 611 are connected to the suction head 605 and the airbag 202, respectively. The connection between the air extraction device 611 and the suction head 605 is a channel on the upper horizontal part of the hook arm 606 outside the camera 603, and a first pipe connecting the channel and the air extraction device 611. The other end of the air extraction device 611 is connected to the airbag 202 through a second pipe. The second pipe passes through the upper end of the connecting shaft 607, passes through the connecting pipe 3, and connects to the airbag 202 on the outside of the drive motor 402.

[0058] The first pipe is used to remove air. The second pipe is used to inflate the airbag.

[0059] The end of the connecting pipe near the handle is the damping cavity, where the airbag and guide ring are located. The end of the connecting pipe away from the handle is the receiving cavity. A partition is provided between the damping cavity and the receiving cavity. The damping cavity is used to hold damping oil, while the receiving cavity is used to hold the drive motor. The second pipe passes through the partition and is sealed. This prevents damping oil from leaking into the receiving cavity.

[0060] The collar 803 is fixedly connected to the outer side of the connecting shaft 607. A sliding block 609, which mates with the sliding opening, is rotatably connected to the upper end of the connecting shaft 607. The sliding block 609 includes arc-shaped portions that mate with both ends of the sliding opening. The connecting seat 401 has a groove 615 at a position corresponding to the sliding opening. Moving blocks 614 are fixedly connected to the side of the sliding block 609. The moving blocks 614 are connected by a spring assembly. The moving blocks 614 are slidably connected to the groove 615. The spring assembly includes a fixed plate and two springs. The fixed plate is fixedly connected to the groove 615 of the connecting seat 401, and each spring is fixed to one of the two springs. The other ends of the two springs are fixedly connected to the moving blocks 614. The spring assembly prevents the two moving blocks 614 from moving. 14. The two springs are close to each other, with both located inside the slide groove. The slide groove 615 is located above the inner nozzle 4011. A first torsion spring 616 is sleeved on the outer side of the connecting shaft 607. One end of the first torsion spring 616 is fixed to the connecting shaft 607, and the other end is fixed to the sliding block 609 through a connecting spring piece 617 made of spring steel. The thickness of the connecting spring piece 617 is 0.15-0.2cm, and the connecting spring piece 617 is arc-shaped. The connecting spring piece 617 absorbs the deformation force of the first torsion spring 616, that is, the deformation of the first torsion spring 616 is less than that of the connecting spring piece 617. The first torsion spring 616 provides stronger resistance to the connecting shaft 607 to prevent the collar 803 from moving too fast and thus pulling the connecting shaft 607 to rotate.

[0061] The sliding block 609 is hollow inside, and the first torsion spring 616 is located inside the sliding block 609. A graphite assembly for lubricating the first torsion spring 616 is provided inside the sliding block 609. The graphite assembly consists of a fixed block 613 and a lubricating block 612. The lubricating block 612 and the fixed block 613 are detachably connected. The fixed block 613 is fixedly connected to the inner wall of the sliding block 609 facing the moving block 614. The lubricating block 612 is made of graphite material, and the side of the lubricating block 612 facing the outer side of the connecting shaft 607 of the first torsion spring 616 is arc-shaped with a gap of less than 1 mm. One side of the lubricating block 612 abuts against the inner wall of the sliding block 609 facing the moving block 614. The connecting spring 617 passes through the fixed block 613.

[0062] It also includes a top-pressing structure 5, which presses the two connecting strips 802 against the connecting seat 401 on the side away from the connecting shaft 607. The top-pressing structure 5 includes a base block, an adjusting handle 501, a telescopic sleeve rod 503, a threaded telescopic rod 504, and a top block 505. The base block is fixedly connected to the inner side of the sliding opening on the connecting seat 401 away from the sliding groove 615. There are two telescopic sleeve rods 503, and both ends are fixedly connected between the base block and the top block 505. The threaded telescopic rod 504 consists of an outer cylinder and a threaded rod. The outer cylinder is rotatably connected to the top block 505 on the side facing the base block. The threaded rod is threadedly connected to the outer cylinder. The threaded rod passes through the side wall of the base block and the connecting seat 401 on the side of the sliding opening away from the sliding groove 615, and the outer side of the protruding end is fixedly connected to the adjusting handle 501. The adjusting handle 501 is located between the two hook arms 606. The threaded telescopic rod 504 is located between the two telescopic sleeve rods 503. The top block 505 corresponds to the position of the inner nozzle 4011, and a graphene strip is provided on the side facing the two connecting strips 802.

[0063] A moisture-absorbing component is installed inside the connecting seat 401 and on one side of the adjusting component. This component is subject to tension deformation by the adjusting component and absorbs moisture from the connecting strip 802. The moisture-absorbing component includes two corner blocks 806, an elastic sheet 805, and a cotton strip 807. Both the elastic sheet 805 and the cotton strip 807 are located under the two connecting strips 802. One of the connecting strips 802, away from the connecting frame 811, is fixedly connected to the inner wall of the connecting seat 401 and to one end of the elastic sheet 805. The other corner block 806 is slidably connected to the inner wall of the connecting seat 401 and to the other end of the elastic sheet 805. The cotton strip 807 is fixedly pasted onto the arc-shaped surface on the outer side of the elastic sheet 805. The elastic sheet 805 is made of spring steel sheet with a thickness of 0.5mm. The connecting strip 802 contacts the side of the cotton strip 807 away from the elastic sheet 805. The inclined surface of the slidable corner block 806 faces the connecting frame 811, and the spacing between them is 2.5mm.

[0064] The drive motor 402, camera 603, air extraction device 611, and brake are all electrically connected to the touch panel and are all powered by a battery, which is not shown in the figure.

[0065] Working principle: When adjusting the angle between the handle 1 and the connecting tube 3, both hands are used to grasp the handle 1 and the connecting tube 3 respectively. The connecting rope 201 bends and deforms between the two. Due to the resistance of the damping oil and the effect of the composite rope core inside the connecting rope 201, the connecting rope 201 can maintain its bent shape for a short time. When using the hook arm 606 to perform flap retraction surgery, the flap is hooked by the horizontal part of the lower side of the hook arm 606. With the action of the capillary guide groove 608 and the absorbent cotton, and after the air suction device 611 is activated, the suction generated at the suction head 605 reduces the tissue fluid at the flap, thereby achieving the purpose of preventing slippage. In addition, with the air suction action of the air suction device 611, the air bag 202 inflates and squeezes the connecting rope 201, further preventing the connecting rope 201 from entering the connecting tube 3. Under the action of the connecting ropes 201 distributed in a circle, the relative angle between the handle 1 and the connecting tube 3 is maintained and can be subjected to force.

[0066] After starting the drive motor 402 and closing the brake, the drive motor 402 drives the take-up shaft 801 to rotate, thereby pulling the two connecting belts 802 to overcome the force of the first torsion spring 616 and the spring assembly from the inner nozzle 4011 into the connecting seat 401, and then winding them onto the take-up shaft 801. During this process, the two connecting belts 802 are sterilized after contacting the ball bearings, and are pressed together by the first auxiliary wheel 808 and the second auxiliary wheel 809. During this process, the connecting belts 802 press against the first auxiliary wheel 808, causing the connecting frame 811 to move towards the movable corner block 806. The movable corner block 806 is then pushed by the connecting frame 811, causing the elastic sheet 805 to bend further. In this way, the cotton strip... 807 will then adhere further to the two connecting straps 802, thereby absorbing excess alcohol and hindering the winding speed of the connecting straps 802 to prevent excessive winding. When the connecting straps 802 drive the connecting shafts 607 to move closer to each other through the collar 803, the first torsion spring 616 and the connecting spring 617 can greatly limit the rotation of the connecting shafts 607, reduce the rotation of the hook arm 606, and thus prevent damage to the skin flap caused by the rotation at the capillary guide groove 608. During the operation, the images recorded by the camera 603 can be observed from the touch panel. When the camera 603 is swollen by the absorbed tissue fluid and blocks the camera 603, it indicates that there is too much tissue fluid and the tissue fluid needs to be removed before the operation can proceed.

[0067] After the drive motor 402 unwinds, the spring assembly pushes the two moving blocks 614 to make the sliding blocks 609 move away from each other, and then the two connecting belts 802 are brought out of the connecting seat 401. Due to the action of the first torsion spring 616 and the connecting spring 617, the connecting shaft 607 will not rotate.

[0068] The above are merely preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A flap retractor device for breast surgery, characterized in that, The hook arm assembly consists of two hook arms arranged side by side; It also includes a connector drive assembly, which drives two hook arms to move closer or further apart by a pulling assembly; The pulling assembly includes a take-up shaft, connecting belts, and an adjusting assembly. There are two connecting belts, each with a collar at one end, and the other ends are wound together onto the take-up shaft. The adjusting assembly includes a connecting frame, a second auxiliary wheel, a second torsion spring, and a first auxiliary wheel. The connecting frame is rotatably connected to the inner wall of the connecting seat. The second and first auxiliary wheels are rotatably connected to the connecting frame and press the two connecting belts together. One end of the second torsion spring is inserted into the inner wall of the connecting seat, and the other end abuts against the connecting frame. The connector drive assembly is connected to an angle-adjustable hand lever. The length direction of the hand lever is perpendicular to the extension direction of the hook arm. The connector drive assembly includes a drive motor and a connecting seat. The drive motor is fixedly connected to the connecting seat, and the power output end of the drive motor is fixed to a winding shaft. The adjustment assembly is installed in the connecting seat to guide and fit the two connecting strips. The connecting seat is provided with a sliding opening. The hook arm is Z-shaped and includes an upper part, a bent part, and a lower part connected sequentially from top to bottom. The upper part is fixedly connected to a connecting shaft, and the lower part is provided with a capillary guide groove. An inner groove is formed on the hook arm, which runs through the upper part, the bent part, and the lower part. The bottom of the inner groove is connected to a snap-fit ​​groove, which cooperates with a lower cover plate to clamp the absorbent cotton. The bottom of the absorbent cotton is in contact with the capillary guide groove. A camera is installed on the side wall of the inner groove near the connecting shaft, and suction heads are installed on both sides of the camera. The suction heads are used to aspirate tissue fluid from the skin flap. An air suction device is installed inside the connecting shaft, and the air suction device is connected to the suction heads. The collar is fixed to the outer side of the connecting shaft. The upper end of the connecting shaft is connected to a sliding block that mates with the sliding opening. The sliding block is fixedly connected to a moving block that is slidably connected to the connecting seat. The moving block and the connecting seat are connected by a spring assembly.

2. The breast surgery flap retractor device according to claim 1, characterized in that: The handheld lever includes a connecting tube, a connecting assembly, and a handle connected in sequence, with the end of the connecting tube connected to the connector drive assembly; An airbag is movably installed inside the connecting tube; The connecting assembly includes a connecting rope, one end of which is connected to the handle, and the other end of which passes through the airbag. The end of the connecting rope that passes through the airbag is provided with a limiting structure to prevent the airbag from being pulled out. The airbag includes two guide airbags and circumferentially arranged partition airbags; the two guide airbags are connected by partition airbags, and the two guide airbags are provided with perforations for the pull rope to pass through, the perforations being located in the area between adjacent partition airbags on the guide airbags. A guide ring is fixed inside the connecting pipe, and a hole is opened on the guide ring for the connecting rope to pass through; The guide ring is located between the handle and the limiting structure; The air extraction device is connected to the airbag via a second pipe.

3. The breast surgery flap retractor device according to claim 2, characterized in that: The end of the connecting tube near the handle is a damping cavity, and the airbag and the guide ring are located in the damping cavity; The end of the connecting pipe away from the handle is a receiving cavity. A partition is provided between the damping cavity and the receiving cavity. The damping cavity is used to hold damping oil, while the receiving cavity is used to hold the drive motor. The second pipe passes through the partition and is sealed.

4. The breast surgery flap retractor device according to claim 1, characterized in that: The upper end of the connecting shaft is rotatably connected to a sliding block that mates with the sliding opening. A first torsion spring is sleeved on the outer side of the connecting shaft, and one end of the first torsion spring is fixed to the connecting shaft, while the other end is connected to the sliding block through a connecting spring piece made of spring steel.

5. The breast surgery flap retractor device according to claim 1, characterized in that: It also includes a pressing structure that presses the two connecting strips toward the connecting seat on the side away from the connecting shaft.

6. The breast surgery flap retractor device according to claim 1, characterized in that: A moisture-absorbing component is installed inside the connector and on one side of the adjustment component, which is subject to the tension deformation of the adjustment component and absorbs moisture from the connecting belt.

7. The breast surgery flap retractor device according to claim 1, characterized in that: The two connecting belts are provided with a partition block at the position where they enter the connecting seat. Each partition block has a ball bearing rolled on one side facing the two connecting belts, and an alcohol-soaked cotton ball is placed inside the partition block to contact the ball bearing.

8. A breast surgery flap retractor device according to claim 2, characterized in that: The handle is embedded with a touch panel at the end away from the pull rope, and the drive motor, the camera, and the air extraction device are all electrically connected to the touch panel.

9. A breast surgery flap retractor device according to claim 4, characterized in that: The sliding block is provided with a graphite assembly for lubricating the first torsion spring. The graphite assembly includes a fixed block and a lubrication block. The lubrication block and the fixed block are detachably connected. The fixed block is fixedly connected to the inner wall of the sliding block facing the moving block. The lubricating block is made of graphite, and the lubricating block is arc-shaped on the side facing the outer side of the first torsion spring assembly connecting shaft. One side of the lubricating block abuts against the inner wall of the sliding block facing the moving block, and the connecting spring passes through the fixed block.

10. A breast surgery flap retractor device according to claim 1, characterized in that: The spring assembly includes a fixed plate and two springs. The fixed plate is fixed to the connecting seat, and one end of each of the two springs is connected to the fixed plate. The other ends of each of the two springs are respectively fixedly connected to a movable block.

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