Skin flap vascular crisis emergency treatment device

Abstract

The invention relates to the technical field of medical instruments, in particular to a flap vascular crisis emergency treatment device, and aims to solve the problems that an existing flap vascular crisis treatment device cannot implement detection and cannot intervene in time. The flap vascular crisis emergency treatment device comprises a fixing frame placed on the outer side of a free flap; the device further comprises an anticoagulant drug release device and a vascular anastomosis device. The anticoagulant drug release device is detachably connected to the fixed frame; the vascular anastomosis device is movably arranged on the fixing frame. The anticoagulant drug release device comprises a drug storage barrel, a puncture needle and a drug delivery assembly; the puncture needle is connected to the bottom end of the medicine storage barrel; the medicine feeding assembly slides and penetrates through the medicine storage barrel. A vascular anastomosis device includes a vascular ferrule and a plurality of suture assemblies. According to the flap blood vessel crisis emergency treatment device, the blood flow condition of the flap blood vessel can be monitored in real time through the anticoagulant drug release device, and the multiple suture assemblies can be controlled to work at the same time by operating the adjusting part.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to an emergency treatment device for skin flap vascular crisis. Background Art

[0002] In the clinical practice of microsurgery, plastic surgery, and reconstructive surgery, free flap transplantation has become an important means to repair tissue defects and restore function and appearance. However, one of the most serious postoperative complications is flap vascular crisis, which is mainly manifested by blood supply obstruction of the transplanted flap, including arterial blood supply insufficiency and venous return obstruction. Once it occurs, if it is not identified and treated in time, it can easily lead to flap necrosis, seriously affecting the success rate of the operation and the patient's prognosis.

[0003] In recent years, a variety of auxiliary devices for flap monitoring have been introduced both domestically and internationally, such as portable laser Doppler devices, near-infrared spectroscopy monitoring systems, and smart wearable flap monitoring patches. However, most of these devices are limited to monitoring functions and lack immediate intervention capabilities. In addition, there is no comprehensive treatment device for emergency treatment of vascular crisis that integrates automatic identification, early warning, and preliminary intervention. Especially in primary hospitals or medical environments with limited resources, the lack of intelligent devices that can quickly initiate emergency procedures has affected the improvement of flap survival rates. Therefore, the design and development of an emergency treatment device for flap vascular crisis with real-time monitoring, automatic early warning, and emergency intervention functions has important clinical value and social significance.

[0004] Existing flap vascular crisis treatment devices have the following problems: (1) They rely on manual observation (such as flap color and tension) and empirical judgment, resulting in time blind spots and the possibility of missing the golden treatment period. (2) Existing devices are mostly single-function (such as only monitoring or only performing operations), unable to achieve rapid linkage between "monitoring and treatment", and lack efficiency and accuracy. Summary of the Invention

[0005] In response to the problems existing in the above-mentioned prior art, the present invention provides an emergency treatment device for flap vascular crisis. On the one hand, the blood flow of the flap blood vessels can be monitored in real time through the anticoagulant drug release device, and early intervention can be achieved once blood coagulation is detected; on the other hand, multiple suturing components can be controlled to work simultaneously by operating the adjustment part, thereby improving the suturing efficiency.

[0006] To achieve the above object, the technical solution adopted by the present invention is: The present application provides an emergency treatment device for flap vascular crisis, comprising a fixed frame placed on the outside of a free flap; further comprising an anticoagulant drug releasing device and a vascular anastomosis device; the anticoagulant drug releasing device is detachably connected to the fixed frame and communicated with the native blood vessels, and is used to monitor the blood coagulation phenomenon of the flap blood vessels and release anticoagulants in the native blood vessels to improve blood flow; the vascular anastomosis device is movably arranged on the fixed frame and is detachably connected to the native blood vessels, and is used to suturing the flap blood vessels and the native blood vessels.

[0007] Furthermore, the anticoagulant drug releasing device includes a drug storage barrel, a puncture needle and a drug delivery assembly; the drug storage barrel is detachably connected to the top of the fixed frame; the puncture needle is connected to the bottom end of the drug storage barrel and is connected to the inside of the drug storage barrel, for injecting the anticoagulant drug into the native blood vessel; the drug delivery assembly slides and passes through the drug storage barrel, for squeezing the anticoagulant drug into the puncture needle.

[0008] Furthermore, the anticoagulant drug release device also includes a drug delivery tube and a movable part; the drug delivery tube is coaxially arranged inside the drug storage barrel and is connected to the inside of the drug storage barrel, and the bottom end is connected to the puncture needle; the movable part is slidably and sealed in the drug delivery tube, and is used to push the drug delivery component to inject the anticoagulant drug.

[0009] Furthermore, the medicine delivery component includes a medicine liquid plate 1, a medicine liquid plate 2, multiple first elastic members and a limiting component; the medicine liquid plate 1 is slidably and sealedly arranged in the medicine storage barrel, and is sleeved on the outside of the medicine delivery tube; the medicine liquid plate 2 is slidably and sealedly arranged in the medicine storage barrel, located below the medicine liquid plate 1, and is sleeved on the outside of the medicine delivery tube; multiple first elastic members are connected between the medicine storage barrel and the medicine liquid plate 1, and are used to push open and pull back the medicine liquid plate 1; the top of the limiting component slides and passes through the top of the medicine storage barrel, and the bottom is sleeved in the medicine delivery tube, and is used to limit the first elastic member.

[0010] Furthermore, the drug delivery assembly also includes a drug delivery tube; the drug delivery tube slides and passes through the top of the drug storage barrel and the drug solution plate 1, and is connected to the drug solution plate 2, for injecting and supplementing anticoagulant drugs.

[0011] Furthermore, the vascular anastomosis device includes a vascular ring and multiple suturing components; the vascular ring is a cylindrical ring structure, which is sleeved inside the native blood vessel and the flap blood vessel, and the flap blood vessel is sleeved outside the native blood vessel; multiple suturing components are arranged on the outer circumference of the vascular ring, one end of each slides through the side wall of the vascular ring, and the other end is located outside the native blood vessel and the flap blood vessel, for suturing the native blood vessel and the flap blood vessel.

[0012] Furthermore, a circular cavity is provided inside the vascular ring; a circular limiting plate is slidingly sleeved in the cavity, and a plurality of magnetic blocks 1 are arranged corresponding to the suture components one by one; a plurality of insulating sheets are provided on the side of the limiting plate close to the magnetic block 1.

[0013] Furthermore, the suturing assembly includes a mounting seat, multiple suturing needles, a push plate and a second magnetic block; the mounting seat has an arc-shaped bottom that matches the vascular ring, and a slot is provided on the side away from the cavity; multiple suturing needles are movably arranged inside the mounting seat, and the size of each suturing needle corresponds to the slot; the push plate slides and passes through the corresponding position of the mounting seat and the slot, and is located above the suturing needle, and is used to push the corresponding suturing needle toward the vascular ring; the second magnetic block is a right-angled trapezoid, which is arranged perpendicular to the vascular ring, one end is connected to the bottom end of the mounting seat, and the other end is slidably connected to the cavity, and is used to drive the mounting seat to move back and forth to nail the suturing needle to the native blood vessel and the flap blood vessel.

[0014] Furthermore, an electromagnetic coil is provided at the top of the mounting seat corresponding to the slot; and a magnetic sheet that repels the electromagnetic coil is provided on the side of the push plate away from the suture needle.

[0015] Furthermore, the vascular anastomosis device also includes an adjusting part and a trachea; the adjusting part is slidably and sealedly arranged in the fixed frame, and an air pressure cavity is formed between the bottom and the fixed frame; one end of the trachea is connected to the air pressure cavity, and the other end is connected to the cavity, which is used to supply air into the cavity to squeeze the limiting plate.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The anticoagulant release device monitors blood flow in the flap vessels in real time. If clotting is detected, anticoagulants can be immediately injected into the native vessels via a puncture needle, enabling early intervention to prevent worsening of the condition and reduce the rate of flap necrosis caused by vascular crisis. This closed-loop feedback mechanism significantly improves treatment efficiency and success rate. An adjustable mechanism simultaneously controls the operation of multiple suturing components, maximizing ease of operation and enhancing suturing efficiency. The vascular collar coaxially encloses the flap vessels and the native vessels, ensuring alignment and reducing the risk of misalignment associated with traditional manual suturing. The suturing components are magnetically driven (magnets 1 and 2) for automated needle advancement, enhancing suturing consistency and efficiency. The automated anticoagulant release and vascular suturing mechanism reduces the time and error associated with traditional manual procedures. This significantly reduces the burden on the surgeon, particularly during complex procedures such as free flap transplantation and microsurgery, and improves overall surgical efficiency.

[0017] 2. The drug delivery system, composed of multiple drug liquid plates, elastic parts and limit components, can accurately control the drug delivery volume, ensuring that anticoagulants are continuously and stably injected into the blood vessels at critical moments. The drug delivery tube design supports intraoperative or postoperative drug replenishment to avoid treatment interruption due to drug depletion.

[0018] 3. The electromagnetic coil and the magnetic sheet cooperate to realize the movement of the push plate, thereby controlling the delivery of the suture needle, making the suturing process more controllable and precise, and suitable for microvascular operations. The air pressure control system composed of the adjustment part and the trachea can push the limit plate through the change of air pressure, so that multiple mounting seats can be pushed open at the same time and prepared for suturing.

[0019] 4. The anticoagulant drug release device is detachably connected to the fixed frame, making it easy to replace drug storage barrels or suture components of different specifications. The device utilizes the phenomenon of blood clotting and blood backflow to place an indwelling needle cartridge for real-time detection. If blood clotting occurs, it can respond immediately and inject anticoagulants in time. Compared with the traditional reliance on medical staff for observation and then drug intervention, it can effectively and accurately detect and deal with it in a timely manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 is a cross-sectional view of the present invention; Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle; Figure 4 Schematic diagram of the structure of the anticoagulant drug release device of the present invention; Figure 5 is a cross-sectional view of the anticoagulant drug release device of the present invention; Figure 6 Schematic diagram of the structure of the medicine delivery component of the present invention; Figure 7 It is a cross-sectional view of the medicine storage barrel in the present invention; Figure 8 This is a structural diagram of the medicine delivery component of the present invention before delivering medicine; Figure 9 This is a structural diagram of the medicine delivery assembly of the present invention delivering medicine for the first time; Figure 10 This is a structural diagram of the secondary drug delivery of the drug delivery component in the present invention; Figure 11 Schematic diagram of the structure of the drug delivery tube in the present invention; Figure 12 For the present invention Figure 11 Enlarged view of point C in the middle; Figure 13 Schematic diagram of the structure of the sliding sleeve in the present invention; Figure 14 Schematic diagram of the structure of the vascular anastomosis device of the present invention; Figure 15 Schematic diagram of the structure of the adjusting member and the baffle in the present invention; Figure 16 This is a diagram showing the internal structure of the blood vessel collar of the present invention; Figure 17 is a schematic diagram of the suturing assembly being pushed out in the present invention; Figure 18 This is a schematic structural diagram of the blood vessel collar of the present invention; Figure 19 Schematic diagram of the structure of the limiting plate in the present invention; Figure 20 Schematic diagram of the structure of the suturing assembly of the present invention; Figure 21 FIG. 1 is a diagram showing the internal structure of the suturing assembly of the present invention; Figure 22 A cross-sectional view of the vascular collar of the present invention Figure 23 For the present invention Figure 22 Enlarged view of point B in the middle.

[0022] In the figure: 1-fixed frame; 11-cylindrical cavity; 12-connecting plate; 13-baffle; 2-anticoagulant drug release device; 21-drug storage barrel; 22-puncture needle; 23-drug delivery assembly; 231-drug solution plate 1; 232-drug solution plate 2; 2321-one-way valve; 233-first elastic member; 2331-rope; 234-limiting assembly; 2341-positioning block; 2342-limiting block; 235-drug delivery tube; 2351-liquid outlet; 24-drug delivery tube; 241-notch; 25-movable member; 26-sliding sleeve; 27-second elastic member ;28-connector;3-vascular anastomosis device;31-vascular collar;311-cavity;312-limiting plate;313-insulating sheet;314-magnetic block one;315-opening;316-groove;317-fixing needle;32-suture assembly;321-mounting seat;3211-slot;322-suture needle;323-push plate;3231-magnetic sheet;324-magnetic block two;325-fourth elastic member;33-electromagnetic coil;34-adjusting member;35-trachea;4-free skin flap;5-blood vessel one;6-blood vessel two;7-skin. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments, rather than all the embodiments.

[0024] In the description of the present invention, it should be understood that the terms "front", "back", "left", "right", "up", "down", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0025] It should also be noted that, in the description of this application, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to direct connections, indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0026] Example 1 Combine Figure 1-23 As shown, the present invention provides an emergency treatment device for flap vascular crisis, including a fixed frame 1 placed on the outside of a free flap 4; also including an anticoagulant drug releasing device 2 and a vascular anastomosis device 3; the anticoagulant drug releasing device 2 is detachably connected to the fixed frame 1 and is connected to the native blood vessels, and is used to monitor the blood coagulation phenomenon of the flap blood vessels and release anticoagulants in the native blood vessels to improve blood flow; the vascular anastomosis device 3 is movably set on the fixed frame 1, and is detachably connected to the native blood vessels, and is used to suturing the flap blood vessels and the native blood vessels.

[0027] Specifically, the fixed frame 1 is the basic framework of the entire device. The fixed frame 1 is a square frame structure with a hollow center. It can be prepared in various sizes to facilitate replacement according to actual needs. It plays a supporting and positioning role to ensure that each component is stable and does not shift during operation. The angle and position can be adjusted according to individual differences of the patient to adapt to flap transplants in different parts of the body. It is made of medical-grade titanium alloy and is suitable for use in surgical environments. The anticoagulant drug release device 2 is detachably connected to the fixed frame 1 through a connector 28. When in use, the fixed frame 1 is placed on the surface of the skin 7, and the free flap 4 is circled in the middle for easy operation. The vascular anastomosis device 3 is connected between the skin 7 and the free flap 4. The native blood vessel is blood vessel 1 5, and the flap blood vessel is blood vessel 2 6.

[0028] Furthermore, the anticoagulant drug releasing device 2 includes a drug storage barrel 21, a puncture needle 22 and a drug delivery assembly 23; the drug storage barrel 21 is detachably connected to the top of the fixed frame 1; the puncture needle 22 is connected to the bottom end of the drug storage barrel 21 and is connected to the interior of the drug storage barrel 21, for injecting anticoagulants into the native blood vessels; the drug delivery assembly 23 slides and passes through the drug storage barrel 21, for squeezing the anticoagulant drugs into the puncture needle 22.

[0029] Medicine storage barrel 21 provides storage space for medication, ensuring it remains contaminant-free and leak-free. It also provides a physical foundation for subsequent pressurized delivery by drug delivery assembly 23. Specifically, the medication is stored in the space between the bottom of delivery assembly 23 and the bottom of medicine storage barrel 21. Medicine storage barrel 21 is constructed of medical-grade transparent polycarbonate, facilitating easy observation of the medication solution and offering excellent sealing and chemical stability. Puncture needle 22 is L-shaped, with one end connected to medicine storage barrel 21 and the other to blood vessel 5.

[0030] Furthermore, the anticoagulant drug release device 2 also includes a drug delivery tube 24 and a movable part 25; the drug delivery tube 24 is coaxially arranged inside the drug storage barrel 21, and is connected to the inside of the drug storage barrel 21, and the bottom end is connected to the puncture needle 22; the movable part 25 is slidably and sealed in the drug delivery tube 24, and is used to push the drug delivery component 23 to inject the anticoagulant drug.

[0031] The drug delivery tube 24 and the drug storage barrel 21 are made of the same material and are an integrated design. The drug delivery tube 24 is vertically positioned at the center of the drug storage barrel 21, with a notch 241 defined at the bottom. The puncture needle 22 communicates with the drug storage barrel 21 through this notch 241. A sliding sleeve 26 is provided on the drug delivery tube 24 corresponding to the notch 241. A second elastic member 27 is connected between the sliding sleeve 26 and the bottom of the drug storage barrel 21, automatically opening and closing the notch 241. A movable member 25 is located at the bottom of the drug delivery tube 24. When blood coagulation occurs, blood flows back into the puncture needle 22. Continued backflow will cause the blood to flow into the drug delivery tube 24, squeezing the movable member 25. The movable member 25 cooperates with the drug delivery assembly 23, allowing the drug delivery assembly 23 to be associated with the blood coagulation phenomenon, enabling timely intervention to automatically inject the anticoagulant into the blood vessel 5.

[0032] Furthermore, the medicine delivery component 23 includes a medicine liquid plate 1 231, a medicine liquid plate 232, a plurality of first elastic members 233 and a limiting component 234; the medicine liquid plate 1 231 is slidably and sealedly arranged in the medicine storage barrel 21, and is sleeved on the outside of the medicine delivery tube 24; the medicine liquid plate 232 is slidably and sealedly arranged in the medicine storage barrel 21, located below the medicine liquid plate 1 231, and is sleeved on the outside of the medicine delivery tube 24; a plurality of first elastic members 233 are connected between the medicine storage barrel 21 and the medicine liquid plate 1 231, and are used to push open and pull back the medicine liquid plate 1 231; the top of the limiting component 234 slides and passes through the top of the medicine storage barrel 21, and the bottom is sleeved in the medicine delivery tube 24, and is used to limit the first elastic member 233.

[0033] It should be noted that, in the initial state, the medicine liquid plate 1 231 and the medicine liquid plate 2 232 are close to each other and can slide up and down in the medicine storage barrel 21 while maintaining a seal. The multiple first elastic members 233 are all in a compressed state, and the first elastic members 233 are connected to the medicine liquid plate 1 231 via ropes 2331. The limiting assembly 234 includes a positioning block 2341 and two limiting blocks 2342. The positioning block 2341 is slidably and sealingly sleeved on the top of the medicine delivery tube 24, and is limited by the top of the medicine delivery tube 24 to prevent the positioning block 2341 from detaching from the medicine delivery tube 24. The two limiting blocks 2342 are respectively arranged on both sides of the positioning block 2341 and located above the medicine delivery tube 24 via torsion springs. The two limiting blocks 2342 correspond one-to-one with the first elastic members 233 and are used to limit the first elastic members 233 in a compressed state.

[0034] Furthermore, the drug delivery component 23 also includes a drug delivery tube 235; the drug delivery tube 235 slides and passes through the top of the drug storage barrel 21 and the drug solution plate 1 231, and is connected to the drug solution plate 2 232 for injecting and supplementing anticoagulant drugs.

[0035] The bottom end of the drug delivery tube 235 is fixedly connected to the second drug solution plate 232. Multiple liquid outlets 2351 are provided on the tube wall between the first and second drug solution plates 231, 232. Multiple one-way valves 2321 are installed on the second drug solution plate 232. During use, anticoagulant medication is injected through the top of the drug delivery tube 235. The anticoagulant flows out of the liquid outlets 2351 and squeezes the second drug solution plate 232, increasing the distance between the first and second drug solution plates 231, 232. The one-way valves 2321 then open, allowing the anticoagulant medication to enter the liquid reservoir, replenishing the device with the medication.

[0036] The working principle of the anticoagulant drug releasing device 2 in the present invention is as follows: when blood coagulation occurs, blood flows back from the puncture needle 22 into the drug delivery tube 24, pushing the movable part 25 upward along the drug delivery tube 24. When the movable part 25 pushes the positioning block 2341 upward, the two limit blocks 2342 are blocked by the first elastic member 233, so that the two limit blocks 2342 rotate to release the limit on the first elastic member 233. When the first elastic member 233 recovers, it extends downward, and the elastic force pushes the drug liquid plate 1 231 and the drug liquid plate 2 232 downward, so that the anticoagulant in the liquid storage barrel is squeezed. At the same time, the pressure of the liquid acts on the sliding sleeve 26, causing the sliding sleeve 26 to slide downward to expose the notch 241, and then the anticoagulant enters the drug delivery tube 24 from the notch 241, and then enters the blood vessel 1 5 from the puncture needle 22, thereby playing a role of timely intervention.

[0037] Example 2 On the basis of the first embodiment, the second embodiment provides a specific structure of the vascular anastomosis device 3, which simplifies the operation process of vascular anastomosis and improves the treatment efficiency.

[0038] Specifically, the vascular anastomosis device 3 includes a vascular ring 31 and multiple suturing components 32; the vascular ring 31 is a cylindrical ring structure, which is sleeved inside the native blood vessels and the flap blood vessels, and the flap blood vessels are sleeved outside the native blood vessels; multiple suturing components 32 are arranged on the outer circumference of the vascular ring 31, one end of each slides through the side wall of the vascular ring 31, and the other end is located outside the native blood vessels and the flap blood vessels, for suturing the native blood vessels and the flap blood vessels.

[0039] The vascular collar 31 is made of medical-grade titanium alloy and features a full-length opening 315 for easy disassembly. A groove 316 is also provided along its circumference for use with the suturing assembly 32. During use, vessel 1 (5) is first threaded through the collar 31, then folded outward onto the outer wall of the collar 31. Vessel 2 (6) is then placed over vessel 1 (5), with the length of vessel 2 (6) on the outer wall of the collar 31 being greater than that of vessel 1 (5). Multiple fixing pins 317 are provided on the outer wall of the collar 31 for initially securing vessels 1 (5) and 2 (6).

[0040] Furthermore, a circular cavity 311 is provided inside the vascular ring 31; the sliding sleeve 26 in the cavity 311 is provided with an annular limiting plate 312, and a plurality of magnetic blocks 314 arranged one-to-one corresponding to the suturing components 32; a plurality of insulating sheets 313 are provided on the side of the limiting plate 312 close to the magnetic block 314.

[0041] Multiple holes are formed on the outer wall of the vascular collar 31 at positions corresponding to the cavity 311, and these holes correspond one-to-one with the multiple suturing assemblies 32. A stop plate 312 is slidably and hermetically contained within the cavity 311, with a spring connected to the inner wall of the cavity 311. Multiple magnetic blocks 314 and multiple insulating sheets 313 cooperate with each other.

[0042] Furthermore, the suturing assembly 32 includes a mounting seat 321, multiple suturing needles 322, a push plate 323 and a second magnetic block 324; the bottom of the mounting seat 321 is an arc that matches the vascular ring 31, and a slot 3211 is provided on the side away from the cavity 311; multiple suturing needles 322 are movably arranged inside the mounting seat 321, and the size of each suturing needle 322 corresponds to the slot 3211; the push plate 323 slides and passes through the corresponding position of the mounting seat 321 and the slot 3211, and is located above the suturing needle 322, for pushing the corresponding suturing needle 322 toward the vascular ring 31; the second magnetic block 324 is a right-angled trapezoid, which is arranged perpendicular to the vascular ring 31, one end is connected to the bottom end of the mounting seat 321, and the other end is slidably connected to the cavity 311, for driving the mounting seat 321 to move back and forth to nail the suturing needle 322 to the native blood vessel and the flap blood vessel.

[0043] Mounting base 321 serves as a carrier for suture needles 322. The slots 3211 on mounting base 321 correspond to the grooves 316 on vascular collar 31, precisely positioning suture needles 322. The shape of suture needles 322 is similar to that of a stapler, and multiple suture needles 322 are connected side by side. A third elastic member is connected between the end away from slot 3211 and mounting base 321. Before use, the third elastic member is compressed. Each time a suture needle 322 is used, the third elastic member pushes the next suture needle 322 toward slot 3211. Magnet block 2 324 and magnet block 1 314 attract each other. When the stop plate 312 is pushed, the inclined surface of magnet block 2 324 engages with the stop plate 312, forcing magnet block 2 324 out of cavity 311. A stop structure is provided between the end of magnet block 2 324 and cavity 311 to prevent magnet block 2 324 from escaping from vascular collar 31. When the insulating sheet 313 is aligned with the magnetic block 1 314, the magnetic block 2 324 is limited by the limiting plate 312 and can prevent interference from the magnetic block 1 314. The push plate 323 is located above the suture needle 322, and the top passes through the mounting seat 321. When the push plate 323 moves, it can push the corresponding suture needle 322 to move, and then push the suture needle 322 out of the slot 3211. When the limiting plate 312 on the magnetic block 2 324 is released, under the attraction of the magnetic block 1 314, the magnetic block 2 324 drives the mounting seat 321 to move toward the blood vessel collar 31, and then the suture needle 322 passes through the blood vessel 1 5 and the blood vessel 2 6, and the needle tip contacts the groove 316. The groove 316 and the mounting seat 321 jointly squeeze the suture needle 322, so that the two needle tips of the suture needle 322 are hooked back, and then the two blood vessel walls are sutured.

[0044] Furthermore, an electromagnetic coil 33 is provided at the top of the mounting base 321 corresponding to the slot 3211. A magnetic sheet 3231 is provided on the side of the push plate 323 away from the suture needle 322, which repels the electromagnetic coil 33. When the electromagnetic coil 33 is energized, the push plate 323 automatically moves under the action of the magnetic sheet 3231, thereby automatically pushing out the suture needle 322.

[0045] Furthermore, the vascular anastomosis device 3 also includes an adjusting member 34 and an air tube 35; the adjusting member 34 is slidably and sealedly arranged in the fixed frame 1, and an air pressure cavity is formed between the bottom and the fixed frame 1; one end of the air tube 35 is connected to the air pressure cavity, and the other end is connected to the cavity 311, which is used to supply air into the cavity 311 to squeeze the limiting plate 312.

[0046] The fixed frame 1 defines a cylindrical cavity 11, with a connecting plate 12 fixedly mounted outside the cylindrical cavity 11. Multiple baffles 13 are rotatably connected to the connecting plate 12. An adjusting member 34 is slidably and sealingly disposed within the cylindrical cavity 11. An air pipe 35 communicates with the cylindrical cavity 11. The baffles 13 limit the position of the adjusting member 34. When the adjusting member 34 is pressed, air enters the cavity 311 through the air pipe 35, causing the limiting plate 312 to simultaneously compress multiple second magnetic blocks 324.

[0047] The working principle of the vascular anastomosis device 3 of the present invention is as follows: when in use, the adjusting member 34 is first pressed downward, so that the air pressure pushes the limit plate 312 to move to the right and stretches the spring. The limit plate 312 squeezes multiple magnetic blocks 2 324 and moves them out of the cavity 311 at the same time, and the insulating sheet 313 covers the magnetic block 1 314. The power of the electromagnetic coil 33 is turned on, so that multiple push plates 323 simultaneously push the corresponding suture needles 322 out of the slot 3211 under the action of the magnetic piece 3231, and then the adjusting member 34 is pulled upward. The suction force and the elastic force of the spring pull the limit plate 312 quickly to the left, and the magnetic block 2 324 moves quickly under the attraction of the magnetic block 1 314, driving the multiple pushed suture needles 322 to pass through the blood vessel 1 5 and the blood vessel 2 6 at the same time, and when the suture needle 322 reaches the groove 316, the groove 316 and the push plate 323 work together to make the needle tip of the suture needle 322 hook back, thereby suturing the two blood vessel walls.

[0048] Specific application cases A flap vascular crisis emergency treatment device is used in plastic surgery. When a free flap 4 is used for breast reconstruction, facial repair, etc., if a vascular crisis (such as blood circulation problems caused by thrombosis) occurs, the device can quickly respond and provide treatment.

[0049] The specific operation process of the device when in use is: First, place the fixing frame 1 outside the free flap 4, and ensure that the anticoagulant drug release device 2 is correctly connected to the fixing frame 1, while ensuring that the puncture needle 22 is accurately inserted into the native blood vessel; Real-time detection is performed by utilizing the phenomenon of blood coagulation and blood reverse flow; If blood coagulation occurs, the movable member 25 will react immediately, releasing the limit of the first elastic member 233, and the liquid plate 1 231 and the liquid plate 2 232 will squeeze the anticoagulant liquid downward; Operation of the vascular anastomosis device 3: Place the vascular loop 31 on the native blood vessels and flap vessels, ensuring that the part to be sutured is located below the suture assembly 32; Pressing down the adjusting member 34 causes the limiting plate 312 to push the multiple mounting seats 321 away simultaneously, and then powering up the electromagnetic coil 33 to cause the pushing plate 323 to push out the suture needle 322; Then, the adjusting member 34 is pulled upward, and the interaction force between the first magnetic block 314 and the second magnetic block 324 is used to drive the mounting seat 321 to move toward the blood vessel so that the suture needle 322 passes through the blood vessel wall to complete the fixation.

[0050] In summary, although embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An emergency treatment device for skin flap vascular crisis, comprising a fixing frame (1) placed outside a free skin flap (4); characterized in that: Also includes: An anticoagulant drug releasing device (2) is detachably connected to the fixed frame (1) and is in communication with the native blood vessels, and is used to monitor blood coagulation in the flap blood vessels and release anticoagulants in the native blood vessels to improve blood flow; The vascular anastomosis device (3) is movably arranged on the fixed frame (1) and is detachably connected to the native blood vessel, and is used for suturing the flap blood vessel and the native blood vessel.

2. The emergency treatment device for skin flap vascular crisis according to claim 1, characterized in that: The anticoagulant drug releasing device (2) comprises: A medicine storage barrel (21) is detachably connected to the top of the fixed frame (1); A puncture needle (22) is connected to the bottom end of the medicine storage barrel (21) and is in communication with the interior of the medicine storage barrel (21) for injecting anticoagulant drugs into the native blood vessels; The medicine delivery component (23) slides and penetrates the medicine storage barrel (21) and is used to squeeze the anticoagulant drug into the puncture needle (22).

3. The emergency treatment device for skin flap vascular crisis according to claim 2, characterized in that: The anticoagulant drug releasing device (2) further comprises: A medicine delivery tube (24) is coaxially arranged inside the medicine storage barrel (21) and communicated with the interior of the medicine storage barrel (21), and its bottom end is communicated with the puncture needle (22); The movable member (25) is slidably and sealingly arranged in the medicine delivery tube (24) and is used to push the medicine delivery component (23) to inject the anticoagulant drug.

4. The emergency treatment device for skin flap vascular crisis according to claim 3, characterized in that: The medicine delivery component (23) comprises: A medicine liquid plate (231) is slidably and sealingly disposed in the medicine storage barrel (21) and sleeved outside the medicine delivery pipe (24); The second medicine liquid plate (232) is slidably and sealingly arranged in the medicine storage barrel (21), located below the first medicine liquid plate (231), and is sleeved outside the medicine delivery pipe (24); A plurality of first elastic members (233) are connected between the medicine storage barrel (21) and the medicine liquid plate one (231), and are used to push open and pull back the medicine liquid plate one (231); The limiting component (234) has a top that slides and passes through the top of the medicine storage barrel (21), and a bottom that is sleeved in the medicine delivery tube (24) and is used to limit the first elastic member (233).

5. The emergency treatment device for skin flap vascular crisis according to claim 4, characterized in that: The medicine delivery component (23) further includes: The drug delivery tube (235) slides through the top of the drug storage barrel (21) and the first drug liquid plate (231), and is connected to the second drug liquid plate (232) for injecting and supplementing anticoagulant drugs.

6. The emergency treatment device for skin flap vascular crisis according to claim 1, characterized in that: The vascular anastomosis device (3) comprises: The vascular collar (31) is a cylindrical ring structure, which is sheathed inside the native blood vessels and the flap blood vessels, and the flap blood vessels are sheathed outside the native blood vessels; A plurality of suturing components (32) are arranged on the outer circumference of the blood vessel collar (31), one end of each of which slides through the side wall of the blood vessel collar (31), and the other end of each of which is located outside the native blood vessel and the flap blood vessel, for suturing the native blood vessel and the flap blood vessel.

7. The emergency treatment device for skin flap vascular crisis according to claim 6, characterized in that: A circular cavity (311) is provided inside the blood vessel collar (31); The sliding sleeve (26) in the cavity (311) is provided with an annular limiting plate (312) and a plurality of magnetic blocks (314) arranged in a one-to-one correspondence with the suturing components (32); A plurality of insulating sheets (313) are provided on one side of the limiting plate (312) close to the magnetic block 1 (314).

8. The emergency treatment device for skin flap vascular crisis according to claim 7, characterized in that: The suturing assembly (32) comprises: The mounting seat (321) has an arc-shaped bottom that matches the blood vessel ring (31), and a slot (3211) is provided on a side away from the cavity (311); A plurality of suturing needles (322) are movably arranged inside the mounting seat (321), and the size of each suturing needle (322) corresponds to the slot (3211); A push plate (323) slides and penetrates the corresponding portion of the mounting seat (321) and the slot (3211), and is located above the suture needle (322), and is used to push the corresponding suture needle (322) toward the blood vessel ring (31); Magnetic block 2 (324) is a right-angled trapezoid, which is arranged perpendicular to the blood vessel ring (31), one end of which is connected to the bottom end of the mounting seat (321), and the other end of which is slidably connected to the cavity (311), and is used to drive the mounting seat (321) to move back and forth to nail the suture needle (322) to the native blood vessel and the flap blood vessel.

9. The emergency treatment device for skin flap vascular crisis according to claim 8, characterized in that: An electromagnetic coil (33) is provided at the top of the mounting seat (321) corresponding to the slot (3211); A magnetic sheet (3231) that repels the electromagnetic coil (33) is provided on one side of the push plate (323) away from the suture needle (322).

10. The emergency treatment device for skin flap vascular crisis according to claim 9, characterized in that: The vascular anastomosis device (3) further comprises: An adjusting member (34) is slidably and sealingly arranged in the fixed frame (1), and an air pressure chamber is formed between the bottom and the fixed frame (1); The air pipe (35) is connected to the air pressure chamber at one end and to the cavity (311) at the other end, and is used to supply air into the cavity (311) to squeeze the limiting plate (312).

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