Cavity supporting bracket for light source breast surgery

Abstract

The invention discloses a light source mammary gland surgery cavity supporting bracket, which belongs to the field of medical instruments, and comprises an inner cavity supporting plate which is composed of a plurality of arc-shaped structures which are sleeved in a sliding manner and can extend or contract along the length direction; in the stretching state, the inner cavity supporting plate is attached to and supports the top end of the breast surgery cavity. The illumination module irradiates towards the bottom of the operation cavity; the at least two arc-shaped supporting strips are rotationally arranged on the side wall of one arc-shaped structure of the inner cavity supporting plate, and in the stretching state, the arc-shaped supporting strips expand outwards so as to provide auxiliary supporting points at the bottom or the side wall of the operation cavity; when the inner cavity supporting plate retracts, the arc-shaped supporting strips rotate oppositely under extrusion of the adjacent outer side arc-shaped structures and are attached to the outer walls of the arc-shaped structures connected with the arc-shaped supporting strips. The connecting structures are arranged at the near ends, away from the operation cavity, of the arc-shaped structures and used for controlling the arc-shaped structures to stretch and contract. Through the arrangement, the device can be unfolded after entering an operation area from a small wound, and the cavity is kept stable.

Description

Technical Field

[0001] This invention belongs to the field of medical device technology, specifically relating to a light source breast surgery cavity support stent. Background Technology

[0002] In breast surgery, especially mastectomy, a 5cm arc-shaped incision is typically made along the axillary skin fold. The tissue is then dissected and a satisfactory cavity is created for surgical manipulation. After removing the entire breast tissue, a prosthesis is inserted. Although the incision is small, an area of ​​approximately 15cm² needs to be constructed within it. A relatively large resection area of ​​20cm is used to create a cavity structure with a small opening and a large base. This leads to difficulties in exposing the surgical field and insufficient illumination of the bottom of the cavity, as well as a confined surgical operating space. To address this issue, practitioners in the field have developed specialized retractors. Existing technologies, such as the retractor for nipple-areola complex-preserving mastectomy disclosed in Chinese Patent CN213217324U, include a handle, a curved section, and a support section. The support section is an arc-shaped surface and integrates a light source, while the curved section has a suction device interface. An assistant manually holds the handle and pulls upwards to lift the breast tissue and illuminate the surgical field with the light source. However, maintaining the cavity within the breast using this retractor requires continuous application of pulling force, which can easily lead to assistant fatigue, and unstable pulling force can affect surgical precision. Furthermore, a single retractor primarily provides upward lifting force to the breast through its strip-shaped outer wall, making it difficult to create uniform and stable multidimensional tension within the breast and affecting the stability of the surgical operating space. Summary of the Invention

[0003] To overcome the problems mentioned in the background art, there is an urgent need for a breast intracavitary surgical support device that can be deployed and maintain cavity stability after entering the surgical area through a small incision, thereby reducing the continuous reliance on manual labor for maintaining the breast cavity and improving surgical efficiency and operational safety. The present invention specifically adopts the following technical solution: A light source breast surgery cavity support stent includes: an inner cavity support plate composed of multiple slidingly connected arc-shaped structures, capable of extending or retracting along its length; the inner cavity support plate has an outwardly convex dome support surface and an inwardly concave light source surface; in the extended state, the dome support surface conforms to and supports the top of the breast surgery cavity; the multiple slidingly connected arc-shaped structures allow instruments to pass through a small incision in a retracted state, and after reaching the target position, extend, with the arc-shaped support surface formed by its outer wall automatically conforming to the cavity dome, providing upward mechanical support from the inside.

[0004] The lighting module includes multiple light-emitting units disposed on the light source surface. In the extended state, the light-emitting units illuminate the bottom of the surgical cavity. The light-emitting units are integrated into the outer wall of the arc-shaped structure facing the inside of the cavity. When the inner cavity support plate is extended, the light source scatters illumination from the top and all sides of the cavity to the bottom, forming a surrounding light path.

[0005] At least two arc-shaped support bars are symmetrically rotated and disposed on the side wall of one of the arc-shaped structures of the inner cavity support plate. When the support bracket is in the extended state, the arc-shaped support bars open outward to provide auxiliary support points at the bottom or side wall of the surgical cavity. When the inner cavity support plate retracts, the arc-shaped support bars rotate towards each other under the compression of the adjacent outer arc-shaped structures and fit against the outer wall of the arc-shaped structure connected to them.

[0006] A connecting structure is provided at the proximal end of each of the arc-shaped structures away from the surgical cavity, for controlling the extension and contraction of the arc-shaped structures.

[0007] Furthermore, the arc-shaped structure includes at least one node sleeve, and the arc-shaped support bar is rotatably connected to the outer wall of the node sleeve; an elastic element is provided between the arc-shaped support bar and the outer wall of the node sleeve, and the arc-shaped support bar extends outward under the drive of the elastic element, so that the extension plane of the arc-shaped support bar and the extension plane of the node sleeve form an angle.

[0008] Furthermore, the arc-shaped structure also includes at least one constraint sleeve, which is slidably sleeved with the node sleeve; during the contraction of the inner cavity support plate, the inner wall of the constraint sleeve abuts against the outer wall of the arc-shaped support strip, and gradually constrains the arc-shaped support strip between the node sleeve and the constraint sleeve.

[0009] This allows the cross-sectional profile of the support stent in the contracted state to be the same as that of the outermost constraint sleeve, thus enabling the support stent to easily enter or leave the surgical cavity through the surgical incision in the contracted state.

[0010] Furthermore, the inner cavity support plate includes a distal end facing the surgical cavity and a proximal end facing away from the surgical cavity; the connecting structure includes a push-pull structure and a connecting rod that are fixedly connected, the other end of the connecting rod being fixedly connected to the proximal end of each of the arc-shaped structures, and the connecting rod is always exposed outside the inner cavity support plate.

[0011] Furthermore, the constraint sleeve at the near end is connected to at least two fastening bolts. When the fastening bolts are tightened, they abut against the outer wall of each of the connecting rods to lock the movement of the corresponding arc-shaped structure.

[0012] Furthermore, the outer wall of the connecting rod is engraved with scale markings, and as the connecting rod moves toward the surgical cavity, the scale value gradually increases as it passes through the constraint sleeve.

[0013] Furthermore, the end of the arc-shaped support strip opposite to the arc-shaped structure is covered with an elastic pad. The elastic pad is made of silicone, which can damage the cavity wall tissue when the arc-shaped support strip is squeezed against the surgical cavity.

[0014] Furthermore, the light-emitting units are disposed on the outer wall of each of the arc-shaped structures, and the light-emitting units are LED beads arranged along the length of the arc-shaped structure. A wire channel communicating with the outside is provided within the arc-shaped support strip. The other side of the wire channel communicates with the placement position of each light-emitting unit. The wires electrically connected to the light-emitting units extend outward through the wire channel to the outside of the support bracket and are electrically connected to the power interface located on the outer wall of the nearest arc-shaped structure. In use, the power interface is connected to an external power source to control the opening and closing of the light-emitting units.

[0015] Furthermore, when the arc-shaped structures move relative to each other, they change the light path direction of the light-emitting unit.

[0016] The beneficial effects of this invention are: 1. This invention features an inner cavity support plate composed of multiple slidingly connected arc-shaped structures, and a rotating support bar that can open outwards. The rotating support bar and the inner cavity support plate can support the surgical cavity and form multiple support points within the surgical cavity. By fixing the shape of the inner cavity support plate with fastening bolts and fixing the position of the arc-shaped support bar with elastic elements, the shape of the surgical cavity can be stably maintained. This replaces the continuous manual lifting required by traditional retractors and solves the problems of reliance on assistant strength and insufficient and unstable cavity tension during surgery.

[0017] 2. The present invention is provided with multiple light-emitting elements located on the inner wall of each arc-shaped structure. This lighting device can provide uniform lighting to the bottom of the entire surgical cavity by scattering the light from all sides of the cavity dome to the bottom, thus avoiding the concentration of direct light beams. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein: Figure 1 A perspective view of an assembly structure of the present invention with the inner cavity support plate in the unfolded state; Figure 2A top view of an assembly structure of the present invention with the inner cavity support plate in the unfolded state; Figure 3 for Figure 2 A schematic diagram of the cross-sectional structure along the AA direction; Figure 4 for Figure 3 A schematic diagram of the local structure at point B; Figure 5 for Figure 3 A schematic diagram of the local structure at point C; Figure 6 A perspective view of an assembly structure of the present invention when the inner cavity support plate is in a retracted state; Figure 7 A top view of an assembly structure of the present invention when the inner cavity support plate is in a retracted state; Figure 8 for Figure 2 A schematic diagram of the cross-sectional structure along the DD direction; Figure 9 for Figure 8 A schematic diagram of the local structure at point E in the middle; In the diagram, 1. Inner cavity support plate; 11. Dome support surface; 12. Light source surface; 13. Constraint sleeve; 131. Fastening bolt; 132. Second limiting step; 14. Node sleeve; 141. Connecting groove; 142. Elastic element; 143. First limiting step; 144. Second limiting block; 15. Arc-shaped strip; 151. First limiting block; 2. Lighting module; 21. Light-emitting unit; 3. Arc-shaped support strip; 4. Connecting structure; 41. Push-pull structure; 42. Connecting rod; 421. Scale marking. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention are clearly and completely described below through specific examples. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] A light source for supporting the surgical cavity of breast cancer, such as Figure 1-9As shown, the device includes: an inner cavity support plate 1, composed of multiple slidingly connected arc-shaped structures, capable of extending or retracting along its length. The inner cavity support plate 1 has an outwardly convex dome support surface 11 and an inwardly concave light source surface 12. In the extended state, the dome support surface 11 adheres to and supports the top of the breast surgery cavity. The multiple slidingly connected arc-shaped structures allow instruments to pass through a small incision in a retracted state. After reaching the target position, they extend, and the arc-shaped support surface formed by their outer walls automatically adheres to the cavity dome, providing upward mechanical support from the inside. This directly replaces the continuous manual lifting required by traditional retractors, realizing the basic construction of a self-supporting cavity. This eliminates the dependence on the assistant's physical strength to maintain the surgical cavity and avoids cavity instability caused by human fatigue or adjustments.

[0021] The illumination module 2 includes multiple light-emitting units 21 disposed on the light source surface 12. In the extended state, the light-emitting units 21 illuminate the bottom of the surgical cavity. The light-emitting units 21 are integrated into the outer wall of the arc-shaped structure facing the inside of the cavity. When the inner cavity support plate 1 is extended, the light source scatters illumination from the top and sides of the cavity to the bottom, forming a surrounding light path. This provides uniform and wide surgical field illumination, helping to reduce blind spots and improve surgical precision.

[0022] At least two arc-shaped support bars 3 are symmetrically and rotatably disposed on the two side walls of one of the arc-shaped structures of the inner cavity support plate 1. A connecting shaft is provided at one end of the arc-shaped support bar 3 connected to the inner cavity support plate 1, and a bushing is provided in the connecting groove 141. The arc-shaped support bar 3 and the connecting groove 141 are rotatably connected through the connecting shaft and the bushing. When the support bracket is in the extended state, the arc-shaped support strip 3 opens outward to provide auxiliary support points at the bottom or side wall of the surgical cavity. The arc-shaped support strip 3 and the inner cavity support plate 1 face the distal end of the surgical cavity, forming at least three support points at the bottom or side wall of the surgical cavity to support the top of the surgical cavity. When the inner cavity support plate 1 retracts, the arc-shaped support strip 3 rotates towards each other under the compression of the adjacent outer arc-shaped structure and fits against the outer wall of the arc-shaped structure connected to it. When the inner cavity support plate 1 is extended, the arc-shaped support strip 3 automatically opens outward, forming an angle greater than 90° with the arc-shaped support strip 3, thereby forming at least two additional support points at the bottom or side wall of the cavity. Combined with the support point at the end of the inner cavity support plate 1, a three-point or multi-point support system is formed.

[0023] Connecting structure 4 is located at the proximal end of each arc-shaped structure away from the surgical cavity, and is used to control the extension and contraction of the arc-shaped structure.

[0024] In some embodiments of this application, such as Figure 1-9As shown, the arc-shaped structure includes at least one node sleeve 14, and an arc-shaped support bar 3 is rotatably connected to the outer wall of the node sleeve 14. An elastic element 142 is provided between the arc-shaped support bar 3 and the outer wall of the node sleeve 14. The arc-shaped support bar 3 extends outward under the drive of the elastic element 142, so that the extension plane of the arc-shaped support bar 3 and the extension plane of the node sleeve 14 form an angle. One side of the arc-shaped support bar 3 abuts against the outer wall of the constraint sleeve 13, and the other side is squeezed by the elastic element 142. When the resultant force exerted by the two on the arc-shaped support bar 3 is balanced, the angle is greater than 90°. One end of the arc-shaped support bar 3 abuts against the surgical cavity, and the other end is rotatably connected to the outer wall of the node sleeve 14. Therefore, when the node sleeve 14 tends to detach from the wound under gravity or external force, the resultant force exerted by the arc-shaped support bars 3 on both sides on the node sleeve 14 is the resistance to prevent the node sleeve 14 from detaching from the wound, thereby reducing the risk of the support stent detaching from the wound. The elastic element 142 is specifically a torsion spring, which gives the arc-shaped support bar 3 an outward tendency to move. The cavity wall inside the constraint sleeve 13 is provided with a second limiting step 132, and the proximal end of the node sleeve 14 is provided with a second limiting block 144. When the second limiting block 144 abuts against the second limiting step 132, it restricts the arc-shaped node sleeve 14 from continuing to move towards the distal end of the inner cavity support plate 1 along the length direction.

[0025] In some embodiments of this application, such as Figure 1-9 As shown, the arc-shaped structure also includes at least one constraint sleeve 13, which is slidably sleeved with the node sleeve 14. During the contraction of the inner cavity support plate 1, the inner wall of the constraint sleeve 13 abuts against the outer wall of the arc-shaped support strip 3, gradually constraining the arc-shaped support strip 3 between the node sleeve 14 and the constraint sleeve 13, thereby maintaining the relative positional relationship between the arc-shaped support strip 3 and the inner cavity support plate 1 within the surgical cavity. This ensures that the cross-sectional profile of the support bracket in the contracted state is the same as the cross-sectional profile of the outermost constraint sleeve 13, allowing the support bracket to easily enter or leave the surgical cavity through the surgical incision in the contracted state. Specifically, the outer wall of the node sleeve 14 is provided with a connecting groove 141, and the arc-shaped support strip 3 is rotatably connected to the outer wall of the node sleeve 14, thereby restricting the movement of the arc-shaped support strip 3 in the contracted state.

[0026] In some embodiments of this application, such as Figure 1-9As shown, the arc-shaped structure also includes an arc-shaped strip 15. A first limiting block 151 is provided at the proximal end of the arc-shaped strip 15, and a first limiting step 143 is provided within the cavity of the node sleeve 14. When the first limiting block 151 and the first limiting step 143 are pressed together, the arc-shaped strip 15 is restricted from continuing to move along its length towards the distal end of the inner cavity support plate 1. When the support bracket is in the deployed state, the arc-shaped strip 15 is located at the distal end of the inner cavity support plate 1, and when supporting the surgical cavity, it, together with the distal ends of each arc-shaped support strip 3, forms the support point of the surgical cavity. The material used to manufacture each arc-shaped structure is one of medical plastics such as polytetrafluoroethylene, polycarbonate, or polyamide, which has good biocompatibility.

[0027] In some embodiments of this application, such as Figure 1-9 As shown, the inner cavity support plate 1 includes a distal end facing the surgical cavity and a proximal end facing away from the surgical cavity; the connecting structure 4 includes a push-pull structure 41 and a connecting rod 42 that are fixedly connected. The other end of the connecting rod 42 is fixedly connected to the proximal end of each arc-shaped structure, and the connecting rod 42 is always exposed outside the inner cavity support plate 1. The push-pull structure 41 is specifically a handle or a push button.

[0028] In some embodiments of this application, such as Figure 1-9 As shown, the constraint sleeve 13 at the near end is connected to at least two fastening bolts 131. When the fastening bolts 131 are tightened, they abut against the outer wall of each connecting rod 42 to lock the movement of the corresponding arc-shaped structure.

[0029] In some embodiments of this application, such as Figure 1-9 As shown, the outer wall of the connecting rod 42 is engraved with graduation marks 421. As the connecting rod 42 moves into the surgical cavity, the graduation value gradually increases as it passes through the restraint sleeve 13. The surgeon can determine the extension length of the inner cavity support plate 1 by using the volume of tissue to be removed and the volume of the surgical cavity to be constructed. After setting the graduation marks 421, the surgeon can intuitively judge the extension length of the inner cavity support plate 1 by observing the length of the connecting rod 42 extending into the restraint sleeve 13, thereby conveniently adjusting the support stent to form surgical cavities of different sizes inside the patient's breast.

[0030] In some embodiments of this application, such as Figure 1-9 As shown, the end of the arc-shaped support strip 3 facing away from the arc-shaped structure is covered with an elastic pad. The elastic pad is made of silicone, which can damage the cavity wall tissue when the arc-shaped support strip 3 is squeezed against the surgical cavity.

[0031] In some embodiments of this application, such as Figure 1-9As shown, the light-emitting units 21 are disposed on the outer wall of each arc-shaped structure, and the light-emitting units 21 are LED beads arranged along the length of the arc-shaped structure. A wire channel communicating with the outside is provided inside the arc-shaped support strip 3. The other side of the wire channel communicates with the placement position of each light-emitting unit 21. The wires electrically connected to the light-emitting units 21 extend outward through the wire channel to the outside of the support bracket and are electrically connected to the power interface located on the outer wall of the nearest arc-shaped structure. In use, the power interface is connected to an external power source to control the opening and closing of the light-emitting units 21.

[0032] In some embodiments of this application, such as Figure 1-9 As shown, when the arc-shaped structures move relative to each other, they change the light path direction of the light-emitting unit 21. Specifically, the constraint sleeve 13 and the node sleeve 14 sequentially support the surgical cavity during operation and stop moving when they reach their maximum stroke. At this time, the light paths of the LED beads set on the outer walls of the constraint sleeve 13 and the node sleeve 14 are fixed. Then, the volume of the cavity is controlled by adjusting the length of the arc-shaped strip 15 extending out of the node sleeve 14. During the adjustment process, the curvature of the inner cavity support plate 1 changes, which in turn changes the landing point of the light path generated by each light-emitting unit 21 in the surgical cavity, thereby illuminating different positions in the surgical cavity.

[0033] In some embodiments of this application, the outer wall of the constraint sleeve 13 is also slidably connected to a suction tube (not shown in the figure), which is used to partially extend into the cavity after the surgical space in the breast is constructed. The part of the tube remaining outside the patient's body is fluidly connected to the pump body, so as to remove the fluids when smoke or fluid or other fluids are generated in the cavity during electrocautery or other operations, and prevent them from affecting the surgeon's field of vision.

[0034] Before the surgical procedure, the support stent in its fully retracted state is sterilized. After establishing a surgical incision and channel in the patient's surgical area, the internal support plate 1 in its retracted state is inserted into the breast surgical cavity through the incision using the four connecting parts of the handheld device.

[0035] Then, push the connecting rod 42 in the connecting structure 4 towards the surgical cavity. The connecting rod 42 drives all the slidingly connected arc-shaped structures to slide forward in sequence, causing the inner cavity support plate 1 to extend along its length. When the dome support surface 11 of the arc-shaped structure constituting the inner cavity support plate 1 is in contact with the top of the surgical cavity, continue to push the connecting rod 42 moderately to fully extend the inner cavity support plate 1. Its outwardly convex dome support surface 11 stably supports the top of the cavity. During this extension process, as the node sleeve 14 and the constraint sleeve 13 undergo relative displacement, the arc-shaped support strip 3 that rotates out from the side wall of the node sleeve 14 automatically opens outward under the action of its own elastic element 142. The elastic soft pad at its end finally abuts against the bottom or side wall of the surgical cavity, forming multiple auxiliary support points, which together with the top support surface constitute a stable and self-supporting surgical operating cavity.

[0036] After the surgical cavity is stabilized, the lighting module 2 is activated, and the light-emitting units 21 located on the inner walls of each arc-shaped structure are powered on and illuminated. These inner walls of the light-emitting units 21 become the light source surfaces 12, and light shines from each light source surface 12 into the bottom of the cavity, providing panoramic illumination. After adjusting the lighting angle, the fastening bolts 131 located on the nearest constraint sleeve 13 are tightened. The bolt ends press against the outer wall of the connecting rod 42, using friction to lock the relative positions of all arc-shaped structures, preventing accidental retraction during surgery and ensuring the rigidity of the entire support frame and the stability of the lighting effect. At this point, a stable and bright surgical cavity has been constructed inside the patient's body, with a stable opening between the surgical cavity and the external environment.

[0037] After the surgical procedure is completed, loosen the fastening bolt 131 and pull the connecting rod 42 outward. As the inner cavity support plate 1 gradually retracts, the constraint sleeve 13 squeezes the open arc-shaped support bar 3, causing it to overcome the elastic force of the elastic element 142 and retract inward into the connecting groove 141, so that the device can be easily removed from the incision.

[0038] To keep the drawings concise, only the parts relevant to this application are shown schematically in each drawing, and they do not represent the actual structure of the product. In addition, to make the drawings concise and easy to understand, in some drawings, only one of the components with the same structure or function is shown schematically, or only one of them is labeled.

[0039] It should be understood that although this specification describes various embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0040] The detailed descriptions listed above are merely specific descriptions of feasible embodiments of this application and are not intended to limit the scope of protection of this application. All equivalent implementations or modifications made without departing from the spirit of the art of this application, such as combinations, divisions or repetitions of features, should be included within the scope of protection of this application.

Claims

1. A light source breast surgery cavity support stent, characterized in that, include: The inner cavity support plate is composed of multiple slidingly connected arc-shaped structures, which can extend or retract along the length direction. The inner cavity support plate has an outwardly convex dome support surface and an inwardly concave light source surface. In the extended state, the dome support surface fits against and supports the top of the breast surgery cavity. The lighting module includes multiple light-emitting units disposed on the light source surface. In the extended state, the light-emitting units illuminate the bottom of the surgical cavity. At least two arc-shaped support bars are symmetrically rotated and disposed on the side wall of one of the arc-shaped structures of the inner cavity support plate. When the support bracket is in the extended state, the arc-shaped support bars open outward to provide auxiliary support points at the bottom or side wall of the surgical cavity. When the inner cavity support plate retracts, the arc-shaped support bars rotate towards each other under the compression of the adjacent outer arc-shaped structures and fit against the outer wall of the arc-shaped structure connected to them. A connecting structure is provided at the proximal end of each of the arc-shaped structures away from the surgical cavity, for controlling the extension and contraction of the arc-shaped structures.

2. The light source breast surgery cavity support stent according to claim 1, characterized in that, The arc-shaped structure includes at least one node sleeve, and the arc-shaped support bar is rotatably connected to the outer wall of the node sleeve; an elastic element is provided between the arc-shaped support bar and the outer wall of the node sleeve, and the arc-shaped support bar extends outward under the drive of the elastic element, so that the extension plane of the arc-shaped support bar and the extension plane of the node sleeve form an angle.

3. The light source breast surgery cavity support stent according to claim 2, characterized in that, The arc-shaped structure also includes at least one constraint sleeve, which is slidably sleeved with the node sleeve; during the contraction of the inner cavity support plate, the inner wall of the constraint sleeve abuts against the outer wall of the arc-shaped support strip, and gradually constrains the arc-shaped support strip between the node sleeve and the constraint sleeve.

4. The light source breast surgery cavity support stent according to claim 3, characterized in that, The inner cavity support plate includes a distal end facing the surgical cavity and a proximal end facing away from the surgical cavity; the connecting structure includes a push-pull structure and a connecting rod that are fixedly connected, the other end of the connecting rod being fixedly connected to the proximal end of each of the arc-shaped structures, and the connecting rod is always exposed outside the inner cavity support plate.

5. The light source breast surgery cavity support stent according to claim 4, characterized in that, The constraint sleeve at the proximal end is connected to at least two fastening bolts. When the fastening bolts are tightened, they abut against the outer wall of each of the connecting rods to lock the movement of the corresponding arc-shaped structure.

6. The light source breast surgery cavity support stent according to claim 4, characterized in that, The outer wall of the connecting rod is engraved with scale markings. As the connecting rod moves toward the surgical cavity, the scale value gradually increases as it passes through the constraint sleeve.

7. A light source breast surgery cavity support stent according to claim 2, characterized in that, The end of the arc-shaped support bar facing away from the arc structure is covered with an elastic pad.

8. The light source breast surgery cavity support stent according to claim 1, characterized in that, The light-emitting unit is disposed on the outer wall of each of the arc-shaped structures, and the light-emitting unit is an LED lamp bead arranged along the length direction of the arc-shaped structure.

9. A light source breast surgery cavity support stent according to claim 1, characterized in that, When the arc-shaped structures move relative to each other, they change the light path direction of the light-emitting unit.

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