A local oxygen therapy and heat preservation device for postoperative replantation of amputated limbs or skin flap surgery

Abstract

This utility model discloses a local oxygen therapy and warming device after surgical limb finger replantation or skin flap surgery, belonging to the field of medical device technology. The device includes a hinged insulated box and a box cover. The openings of the box and the box cover are connected by a snap-fit ​​assembly. A placement port is opened on the same side. An oxygen supply port, a position sensor, and a heating tube are provided on the inner wall of the box. A pad is placed inside the box, and an angle adjustment assembly is provided at the bottom of the pad. The angle adjustment assembly includes a frame fixed to the bottom of the box and two support seats. A crossbar is installed between the two support seats. A rotating seat is fixed to the bottom of the pad and rotates onto the crossbar. A hinge seat is fixed to the bottom of the pad away from the rotating seat. The hinge seat is connected to a drive unit inside the frame through a connecting rod. This utility model realizes flexible adjustment of the limb placement angle through the angle adjustment assembly, provides a suitable environment for postoperative tissue through the oxygen supply and temperature control system, and facilitates operation through the separate placement port design, thus comprehensively improving the postoperative treatment effect.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a local oxygen therapy and warming device after surgical limb or finger replantation or skin flap surgery. Background Technology

[0002] Surgical limb and finger replantation is a procedure that uses microsurgical techniques to reconnect blood vessels, nerves, tendons, and other tissues to a completely severed limb or finger. Flap surgery, on the other hand, involves transferring skin or subcutaneous tissue with a vascular pedicle to the defect site for tissue reconstruction. Both types of surgeries require strict postoperative warming to maintain a stable temperature environment at the surgical site, promote blood circulation, prevent vasospasm, reduce the risk of thrombosis, aid in tissue cell metabolism and healing, reduce the risk of tissue necrosis, and improve the success rate of the surgery and the postoperative recovery effect.

[0003] Chinese patent document (publication number: CN201299699Y) discloses a limb replantation thermal therapy device, belonging to the field of medical and nursing devices. It features a frame with a cage-like structure. The upper, left, and right sides of the frame are welded from parallel stainless steel strips. Two illumination bulbs are mounted on each of the stainless steel strips on each of the upper, left, and right sides. All the illumination bulbs are connected in series and electrically connected to a resistance adjustment switch. A thermometer is mounted on the upper side of the frame. This invention has a simple structure, low cost, is easy to use, allows for temperature adjustment at any time, and provides good therapeutic effects.

[0004] Current technology uses a fixed cage structure, which cannot adjust the limb placement angle according to the patient's specific situation. This single fixation method not only affects patient comfort but may also lead to poor local blood circulation, increasing the risk of thrombosis. Secondly, current technology lacks oxygen supply function and relies solely on simple heat preservation, which cannot meet the urgent oxygen demand of postoperative tissues. This severely restricts the speed of tissue repair and angiogenesis, potentially reducing the success rate of surgery. Thirdly, the fixed size of the cage structure's inlet makes it difficult to move the limbs. These problems seriously affect the postoperative treatment effect and recovery process. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a local oxygen therapy and warming device after surgical limb replantation or flap surgery. By incorporating an angle-adjustable pad within the box, the device allows for flexible adjustment of the limb placement angle, effectively improving local blood circulation, reducing the risk of thrombosis, and significantly enhancing patient comfort. Simultaneously, an oxygen supply port, position sensor, and heating tube are integrated into the inner wall of the box, forming a complete oxygen supply and temperature control system. This provides sufficient oxygen and a suitable temperature environment for postoperative tissues, effectively promoting tissue repair and angiogenesis. Furthermore, a placement opening with a detachable design at the seam between the box and the lid allows for selective separation of the box and lid. This not only provides ample operating space for convenient limb placement and nursing procedures by medical staff, but the inflatable airbag on the inner wall of the placement opening also ensures excellent sealing performance, overcoming the inconvenience of traditional cage-like structures.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A local oxygen therapy and warming device after surgical limb replantation or flap surgery includes a hinged warming box and a lid. A control panel is located on the outside of the box. The openings of the box and the lid are connected by a snap-fit ​​assembly. A placement opening is provided on the same side of the box and the lid. An oxygen supply port, a position sensor, and a heating tube are provided on the inner wall of the box. A pad is placed inside the box, and an angle adjustment assembly is located at the bottom of the pad. The angle adjustment assembly includes a frame fixed to the bottom of the box and two support seats. A crossbar is installed between the two support seats. A rotating seat is fixed to the bottom of the pad and rotatably mounted on the crossbar. A hinge seat is fixed to the bottom of the pad away from the rotating seat. The hinge seat is connected to a drive unit inside the frame through a connecting rod. When the drive unit pushes the connecting rod to move, it causes the pad above the hinge seat to rotate around the crossbar to achieve angle adjustment.

[0008] Preferably, the drive unit includes a threaded block, a smooth screw, and a rocker arm. A cross groove is provided on both sides of the frame. The smooth section of the smooth screw is rotatably installed in the frame. The threaded section of the smooth screw is fitted with a threaded block. The bottom of the threaded block is slidably disposed with the bottom of the housing. Push rods are fixed on both sides of the threaded block. Guide blocks are fixed on the push rods. The guide blocks are slidably installed in the cross grooves. The two ends of the push rods are rotatably connected to the ends of adjacent connecting rods.

[0009] Preferably, the placement opening is located at the seam between the box body and the box lid, and the placement opening is formed by the cooperation of a first half-opening provided on the box body and a second half-opening provided on the box lid.

[0010] Preferably, inflatable airbags are respectively provided on the inner walls of the first half and the second half of the placement port.

[0011] Preferably, the buckle assembly includes a T-slot, a protrusion, a limiting rod, and a spring. A buckle is provided on the lid corresponding to the T-slot. Limiting rods are fixed on both sides of the T-slot opening on the outer wall of the box body, and a protrusion and a spring are slidably mounted on the limiting rods. The protruding end of the protrusion faces the T-slot opening.

[0012] Preferably, the bottom of the box is provided with a drain outlet, and the side panels of the box are provided with ventilation holes.

[0013] Preferably, a soft pad is provided on the pad, and fixing straps are provided on both sides of the pad.

[0014] Preferably, both the box body and the box lid are transparent and made of plexiglass.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. This utility model sets a pad with an angle adjustment component inside the box. Through the cooperation of the frame, support seat, crossbar and rotating seat, as well as the precise control of the drive unit (including threaded block, optical screw and rocker), the limb placement angle can be flexibly adjusted according to the patient's specific situation to ensure smooth blood circulation.

[0017] 2. This utility model has a placement opening at the seam between the box body and the box lid, and the box body and the box lid can be selectively separated to create a larger operating space. In addition, an inflatable airbag is set on the inner wall of the placement opening to facilitate the placement of limbs while ensuring sealing performance.

[0018] 3. This utility model has an oxygen supply port, a position sensor and a heating tube set on the inner wall of the box to form a complete oxygen supply and temperature control system, which can provide sufficient oxygen and a suitable temperature environment for postoperative tissues, promote tissue repair and angiogenesis, and thus comprehensively improve the treatment effect and recovery process after surgery. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of the overall structure of the device of this utility model;

[0020] Figure 2 This is a three-dimensional schematic diagram of the lid opening structure of the device of this utility model;

[0021] Figure 3 This is a three-dimensional schematic diagram of the angle adjustment component structure of the device of this utility model;

[0022] Figure 4 This is a three-dimensional schematic diagram of the buckle assembly structure of the device of this utility model;

[0023] In the diagram: Box body-11; Box cover-12; Placement port-13; Control panel-14; Snap fastener assembly-15; Pad plate-16; Oxygen supply port-17; Position sensor-18; Heating tube-19; Snap fastener-20; T-slot-21; Protrusion-22; Limiting rod-23; Spring-24; Support base-25; Crossbar-26; Rotating seat-27; Frame-28; Hinge base-29; Connecting rod-30; Cross slide-31; Guide block-32; Push rod-33; Smooth screw-34; Threaded block-35; Rocker arm-36. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

[0025] Contents not described in detail in this specification are existing technologies known to those skilled in the art. In the description of this utility model, it should be understood that terms such as "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are used only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this utility model. Furthermore, terms such as "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0026] Figures 1-4 As shown, a local oxygen therapy and warming device after replantation of a finger or flap surgery includes a hinged insulated box 11 and a lid 12. A control panel 14 is provided on the outside of the box 11. The openings of the box 11 and the lid 12 are connected by a snap-fit ​​assembly 15. A placement opening 13 is provided on the same side of the box 11 and the lid 12. An oxygen supply port 17, a position sensor 18, and a heating tube 19 are provided on the inner wall of the box 11. A pad 16 is provided inside the box 11, and an angle adjustment assembly is provided at the bottom of the pad 16. The angle adjustment assembly includes a frame 28 fixed to the bottom of the housing and two support seats 25. A crossbar 26 is installed between the two support seats 25. A rotating seat 27 is fixed to the bottom of the pad 16 and is rotatably sleeved on the crossbar 26. A hinge seat 29 is fixed to the bottom of the pad 16 away from the rotating seat 27. The hinge seat 29 is connected to the drive unit inside the frame 28 through a connecting rod 30. When the drive unit pushes the connecting rod 30 to move, it causes the pad 16 above the hinge seat 29 to rotate around the crossbar 26 to achieve angle adjustment.

[0027] Among them, the oxygen supply port 17 is connected to the external oxygen delivery end, the device is connected to an external power source, and the control and adjustment switches of the position sensor 18, the oxygen supply port 17 and the electric heating tube 19 are all connected to the control panel 14.

[0028] The device of this invention forms a sealed treatment space through a hinged box 11 and a box cover 12. A control panel 14 located on the outside of the box allows for the adjustment of various functions. The device provides a continuous oxygen supply through an oxygen supply port 17 located on the inner wall of the box, a position sensor 18 monitors the limb position in real time, and a heating tube 19 maintains the required temperature. Its core innovation lies in the design of the angle adjustment component: the pad 16 is fitted onto the crossbar 26 between two support seats 25 via a rotating seat 27 at the bottom, achieving rotational support; the hinge seat 29 at the bottom of the pad, away from the rotating seat, is connected to the drive unit inside the frame 28 via a connecting rod 30. When the drive unit operates, it pushes the connecting rod 30 to move, thereby causing the pad 16 above the hinge seat 29 to rotate around the crossbar 26, achieving precise angle adjustment. The placement opening 13 on the same side of the box 11 and the box cover 12 facilitates limb placement, and a reliable connection is achieved through a snap fastener assembly 15.

[0029] It should be noted that the side panel of the box 11 where the placement port 13 is located can also be replaced with an airbag structure to expand the space of the inlet, which is more convenient for medical staff or patients to operate.

[0030] This device, through the precise coordination of its frame, support base, crossbar, and rotating seat, combined with the control of the drive unit, can flexibly adjust the limb placement angle to adapt to the patient's condition, ensuring smooth blood circulation. The placement opening at the seam between the box and the lid adopts a separate design, providing ample operating space while ensuring sealing performance. The built-in oxygen supply port, position sensor, and heating tube form a complete oxygen supply and temperature control system, providing sufficient oxygen and a suitable temperature environment for postoperative tissues, significantly promoting tissue repair and angiogenesis, and comprehensively improving the treatment effect and recovery process after surgery.

[0031] Furthermore, the drive unit includes a threaded block 35, a smooth screw 34, and a rocker arm 36. A cross groove 31 is provided on both sides of the frame 28. The smooth section of the smooth screw 34 is rotatably installed in the frame 28, and the threaded section of the smooth screw 34 is fitted with the threaded block 35. The bottom of the threaded block 35 is slidably disposed with the bottom of the housing. Push rods 33 are fixed on both sides of the threaded block 35, and guide blocks 32 are fixed on the push rods 33. The guide blocks 32 are slidably installed in the cross groove 31. The two ends of the push rods 33 are rotatably connected to the ends of the adjacent connecting rods 30.

[0032] See Figure 3The working principle of this drive unit is that the rocker arm 36 drives the optical screw 34 to rotate. The smooth section of the optical screw 34 is supported for rotation within the frame 28, while the threaded section engages with the threaded block 35. When the optical screw 34 rotates, the threaded block 35 moves horizontally along the bottom of the housing under the action of the thread. Guide blocks 32 are provided on the push rods 33 fixed on both sides of the threaded block 35. The guide blocks 32 are embedded in the cross grooves 31 on both sides of the frame 28 to ensure that the movement of the threaded block 35 is strictly in a straight line. The two ends of the push rods 33 are rotatably connected to the connecting rods 30. When the push rods 33 move with the threaded block 35, the motion is transmitted to the hinge seat through the connecting rods 30, thereby realizing the angle adjustment of the pad. This design achieves precise displacement control through the precise cooperation of the optical screw and the threaded block. The combination of the double push rods and the cross grooves ensures the stability of the movement and the guiding accuracy. The entire transmission system operates smoothly and reliably, and can achieve precise adjustment of the pad angle.

[0033] Furthermore, the placement opening 13 is located at the seam between the box body 11 and the box cover 12, and the placement opening 13 is formed by the cooperation of a first half-opening provided on the box body 11 and a second half-opening provided on the box cover 12. Further, inflatable airbags (not shown in the figure) are respectively provided on the inner walls of the first half-opening and the second half-opening of the placement opening 13.

[0034] See Figure 2 and Figure 3 The device's placement port 13 features an innovative split design, positioned at the seam between the housing 11 and the lid 12. Specifically, the first half-opening on the housing 11 and the second half-opening on the lid 12 work together to form a complete placement port. This design allows the placement port to separate when the housing and lid are separated, greatly facilitating limb placement and subsequent care procedures for medical personnel. When the housing and lid are closed, the two halves precisely align to form a complete placement port. Combined with the inflatable airbag within the placement port, this ensures both a tight seal and prevents pressure injury to the placed limb. This split placement port design not only improves the device's practicality and ease of operation but also provides crucial structural support for ensuring treatment effectiveness.

[0035] Furthermore, the buckle assembly 15 includes a T-slot 21, a protrusion 22, a limiting rod 23, and a spring 24. A buckle 20 is provided on the cover 12 corresponding to the T-slot 21. Limiting rods 23 are fixed on both sides of the T-slot opening on the outer wall of the box body 11, and protrusions 22 and springs 24 are slidably mounted on the limiting rods 23. The protruding end of the protrusion 22 faces the T-slot opening.

[0036] See Figure 4The working principle of the snap-fit ​​assembly 15 is to achieve a reliable connection between the box body and the box cover through the cooperation of the T-slot 21 and the snap-fit ​​20. When the snap-fit ​​20 on the box cover 12 is inserted into the T-slot 21 on the outer wall of the box body 11, it first pushes the protrusion 22 to overcome the elastic force of the spring 24 and retract. When the snap-fit ​​20 is fully inserted, the protrusion 22 automatically rebounds under the action of the spring 24, and the protruding end of the protrusion 22 is engaged in the corresponding slot of the snap-fit ​​20, thereby achieving reliable locking. The limiting rod 23 is fixed on both sides of the T-slot opening, which not only provides sliding guidance for the protrusion 22, but also limits the movement range of the protrusion 22, ensuring that it always maintains the correct working position. The design of the protrusion 22 and the spring 24 sleeved on the limiting rod 23 enables the entire locking mechanism to maintain stable and reliable performance during use. This snap-fit ​​assembly design has the advantages of simple operation, reliable locking, and automatic reset. At the same time, it has a compact structure, is easy to maintain, and can ensure that the box body and the box cover maintain a stable connection during use, providing a safety guarantee for the treatment process. When it is necessary to open the lid, simply pull the protrusion 22 manually to disengage it from the slot of the buckle 20, and the opening operation can be easily achieved.

[0037] Furthermore, a drain outlet (not shown in the figure) is provided at the bottom of the box 11, and ventilation holes (not shown in the figure) are provided on the side plate of the box 11.

[0038] Furthermore, a soft pad (not shown in the figure) is provided on the pad 16, and fixing straps (not shown in the figure) are provided on both sides of the pad 16.

[0039] Furthermore, both the box body 11 and the box cover 12 are transparent and made of plexiglass.

[0040] The drain outlet at the bottom of the chamber 11 is used to promptly drain condensate and other liquids generated during treatment, keeping the interior of the chamber clean and dry. Ventilation holes on the side panels ensure air circulation within the chamber, creating a good ventilation environment in conjunction with the oxygen supply system and preventing excessive humidity from affecting treatment effectiveness. The soft pad on the pad 16 provides comfortable support for the patient, reducing local pressure and preventing complications such as pressure sores. The fixing straps on both sides of the pad can appropriately fix the limb as needed, ensuring limb stability during treatment and improving treatment outcomes. The chamber 11 and lid 12 are made of transparent acrylic glass. This material selection ensures structural strength while allowing medical staff to observe the limb's condition inside the chamber at any time, promptly identifying and addressing any potential problems. Acrylic glass also has excellent thermal insulation and impact resistance, ensuring the safety and reliability of the device during use. The organic combination of these design features ensures the stability of the treatment environment while improving user comfort and ease of operation, fully demonstrating the scientific and practical nature of the device.

[0041] In this device, in addition to localized temperature control and heating, an adjustable infrared temperature probe (not shown in the figure) can be installed to measure the temperature of the surgical site. The measured temperature of the surgical site and the ambient temperature are displayed on the control panel 14 for comparative analysis.

[0042] When measuring the fingers or toes, a single temperature measurement point is commonly used to monitor the center of the tissue. When measuring a skin flap, 2 to 3 temperature measurement points are typically used. First, 2 or 3 points are selected to divide the flap's longitudinal axis equally, and then the measurement points are moved laterally to radiate the entire flap. Temperature differences observed at multiple measurement points, exceeding the normal range, suggest local microcirculatory disturbances.

[0043] This utility model is illustrated through the above embodiments, but it is not limited to these embodiments, meaning that it does not necessarily depend on them for implementation. Those skilled in the art should understand that all related improvements to this utility model fall within its protection and disclosure scope.

Claims

1. A local oxygen therapy and warming device after surgical limb finger replantation or skin flap surgery, comprising a hinged warming box (11) and a box cover (12), wherein a control panel (14) is provided on the outside of the box (11), characterized in that, The openings of the box body (11) and the box cover (12) are connected by a snap fastener assembly (15). A placement opening (13) is provided on the same side of the box body (11) and the box cover (12). An oxygen supply port (17), a position sensor (18), and a heating pipe (19) are provided on the inner wall of the box body (11). A pad (16) is provided inside the box body (11), and an angle adjustment assembly is provided at the bottom of the pad (16). The angle adjustment assembly includes a frame (28) fixed to the bottom of the box body and two support bases (25). A crossbar (26) is installed between the support (25), and a rotating seat (27) is fixed at the bottom of the pad (16). The rotating seat (27) is rotatably sleeved on the crossbar (26). A hinge seat (29) is fixed at the bottom of the pad (16) away from the rotating seat (27). The hinge seat (29) is connected to the drive unit inside the frame (28) through the connecting rod (30). When the drive unit pushes the connecting rod (30) to move, it drives the pad (16) above the hinge seat (29) to rotate around the crossbar (26) to achieve angle adjustment.

2. The local oxygen therapy and warming device after surgical limb finger replantation or skin flap surgery according to claim 1, characterized in that, The drive unit includes a threaded block (35), a smooth screw (34), and a rocker arm (36). A cross groove (31) is provided on both sides of the frame (28). The smooth section of the smooth screw (34) is rotatably installed in the frame (28). The threaded section of the smooth screw (34) is fitted with a threaded block (35). The bottom of the threaded block (35) is slidably set with the bottom of the box. Push rods (33) are fixed on both sides of the threaded block (35). Guide blocks (32) are fixed on the push rods (33). The guide blocks (32) are slidably installed in the cross groove (31). The two ends of the push rods (33) are rotatably connected to the ends of the adjacent connecting rods (30).

3. The local oxygen therapy and warming device after replantation of surgical limb fingers or skin flap surgery according to claim 1, characterized in that, The placement opening (13) is located at the seam between the box body (11) and the box cover (12). The placement opening (13) is formed by the cooperation of a first half opening provided on the box body (11) and a second half opening provided on the box cover (12).

4. The local oxygen therapy and warming device after replantation of surgical limb fingers or skin flap surgery according to claim 3, characterized in that, Inflatable airbags are respectively provided on the inner walls of the first half and the second half of the placement port (13).

5. The local oxygen therapy and warming device after surgical limb finger replantation or skin flap surgery according to claim 1, characterized in that, The buckle assembly (15) includes a T-slot (21), a protrusion (22), a limiting rod (23), and a spring (24). A buckle (20) is provided on the box cover (12) corresponding to the T-slot (21). Limiting rods (23) are fixed on both sides of the T-slot opening on the outer wall of the box body (11). The protrusion (22) and the spring (24) are slidably sleeved on the limiting rod (23). The protruding end of the protrusion (22) faces the T-slot opening.

6. The local oxygen therapy and warming device after surgical limb finger replantation or skin flap surgery according to claim 1, characterized in that, The bottom of the box (11) is provided with a drain outlet, and the side plate of the box (11) is provided with a vent.

7. The local oxygen therapy and warming device after surgical limb finger replantation or skin flap surgery according to claim 1, characterized in that, A soft pad is provided on the pad (16), and fixing straps are provided on both sides of the pad (16).

8. The local oxygen therapy and warming device after replantation of surgical limb fingers or skin flap surgery according to claim 1, characterized in that, Both the box body (11) and the box cover (12) are transparent and made of plexiglass.

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