Flap retractor device

Abstract

A skin flap retractor device comprises a handle, a retractor mechanism and an adjusting mechanism. The retractor mechanism comprises a first retractor and a second retractor, which are movably arranged at the head end of the handle. The adjusting mechanism comprises a linkage, a first connecting rod and a second connecting rod. The linkage is provided with a first leg and a second leg. The first connecting rod is hingedly connected at one end to the first leg and at the other end to the first retractor. The second connecting rod is hingedly connected at one end to the second leg and at the other end to the second retractor. The head end is provided with a first arc-shaped slide rail and a second arc-shaped slide rail. The first leg passes through the first arc-shaped slide rail, and the second leg passes through the second arc-shaped slide rail. The linkage is rotatable relative to the head end. When the linkage is rotated by an operating assistant, the first leg and the second leg on the linkage drive the first connecting rod and the second connecting rod to move, and then drive the first retractor and the second retractor to move towards each other or away from each other. The interval is easy to adjust, the operating cost and time can be effectively saved, and the manpower and material resources can be reduced.

Description

Technical Field

[0001] This application relates to the field of medical device technology, and more particularly to a flap retractor device. Background Technology

[0002] In 2022, there were 2.31 million new cases of breast cancer globally, with 670,000 deaths. As of now, my country has over 1 million breast cancer patients, with 357,000 new cases and 75,000 deaths. The latest data released by my country's National Cancer Center shows that breast cancer has the highest incidence rate among female malignant tumors, showing a year-on-year increase and a trend towards affecting younger women. This has brought devastating blows to many families. Breast cancer has surpassed lung cancer to become the leading cause of new cancer cases globally, and has become an undeniable threat to human health.

[0003] Currently, modified radical mastectomy for breast cancer remains a routine surgical procedure. In breast cancer surgery, flap dissection, effectively separating the glandular tissue from the skin, is an essential step. Flap separation is typically performed using straight forceps or claw retractors. However, existing claw retractors generally only have one retractor head, requiring assistants to use both hands simultaneously to manipulate two retractors to pull the flap, while another assistant assists the surgeon. Therefore, breast cancer surgery routinely requires two surgical assistants to assist the surgeon. In departments with staff shortages, this increases the difficulty of the surgery and prolongs the operation time. Furthermore, when two surgical assistants simultaneously manipulate two retractors to pull the flap, the spacing cannot be precisely adjusted.

[0004] Therefore, how to improve the technical defects existing in the prior art has always been a problem that ordinary people skilled in the art need to solve. Utility Model Content

[0005] The purpose of this application is to provide a flap retractor device with two retractors and an adjustable distance between them, which facilitates one-handed operation by the surgical assistant, reduces manpower and material resources, and saves surgical costs and time while achieving the surgical objective.

[0006] The technical solution provided by this utility model is as follows:

[0007] A flap retractor device, characterized in that it comprises:

[0008] The handle includes a grip and a head end;

[0009] The hook mechanism includes a first hook and a second hook, both of which are movably mounted at the head end;

[0010] The adjustment mechanism includes a linkage, a first connecting rod, and a second connecting rod. The linkage is provided with a first support and a second support. One end of the first connecting rod is hinged to the first support and the other end is hinged to a first hook. One end of the second connecting rod is hinged to the second support and the other end is hinged to the second hook.

[0011] The head end is provided with a first arc-shaped slide rail and a second arc-shaped slide rail. The first leg passes through the first arc-shaped slide rail, and the second leg passes through the second arc-shaped slide rail. The linkage is configured to rotate relative to the head end, driving the first leg to reciprocate along the extension direction of the first arc-shaped slide rail and driving the second leg to reciprocate along the extension direction of the second arc-shaped slide rail, thereby driving the first link and the second link to move, and further driving the first hook and the second hook to move towards or away from each other.

[0012] In some embodiments, one axial end of the first connecting rod is provided with a first hinge hole, and the first hook is provided with a second hinge hole. The first hinge member passes through the second hinge hole and the first hinge hole to achieve the hinge connection between the first connecting rod and the first hook; and,

[0013] The second connecting rod has a third hinge hole at one end in the axial direction, and the second hook has a fourth hinge hole. The second hinge member passes through the fourth hinge hole and the third hinge hole to realize the hinge connection between the second connecting rod and the second hook.

[0014] In some embodiments, the flap retractor device further includes:

[0015] Guide components are installed at the head end;

[0016] The guide member has a first guide rail and a second guide rail, which are arranged sequentially along the extension direction of the guide member, and both the first guide rail and the second guide rail extend along the extension direction of the guide member.

[0017] When the first hinge passes through the first guide rail, and the linkage rotates to move the first connecting rod, the first hinge moves along the extension direction of the first guide rail, thereby causing the first hook to move along the extension direction of the first guide rail; and when the second hinge passes through the second guide rail, and the linkage rotates to move the second connecting rod, the second hinge moves along the extension direction of the second guide rail, thereby causing the second hook to move along the extension direction of the second guide rail.

[0018] In some embodiments, both the first hook and the second hook include a connecting portion, a rod portion, and a tip;

[0019] The bottom of the connecting part has two locking platforms that abut against the opposite sides of the guide member. The second hinge hole is opened in the two locking platforms of the first hook, and the fourth hinge hole is opened in the two locking platforms of the second hook. The top of the connecting part has a mating hole, and the bottom of the rod has a mating boss. The mating boss is locked in the mating hole, and both the mating boss and the connecting part have mounting holes. The mounting part passes through the mounting holes to realize the connection between the connecting part and the rod. The tip is fixed to the top of the rod.

[0020] In some embodiments, the linkage component has a first linkage hole and a second linkage hole;

[0021] The first link has a third linkage hole at the end away from the first hinge hole, and the second link has a fourth linkage hole at the end away from the third hinge hole.

[0022] The first leg passes through the first arc-shaped slide rail, the third linkage hole, and the first linkage hole to connect the head end, the first connecting rod, and the linkage component; and the second leg passes through the second arc-shaped slide rail, the fourth linkage hole, and the second linkage hole to connect the head end, the second connecting rod, and the linkage component.

[0023] In some embodiments, the first hinge member is fitted with a first roller that makes rolling contact with the first guide rail; the second hinge member is fitted with a second roller that makes rolling contact with the second guide rail.

[0024] and / or

[0025] The first support leg is equipped with a third roller that makes rolling contact with the first arc-shaped slide rail; the second support leg is equipped with a fourth roller that makes rolling contact with the second arc-shaped slide rail.

[0026] In some embodiments, the flap retractor device further includes:

[0027] A knob, mounted on a linkage component, is suitable for driving the linkage component to rotate;

[0028] The knob, linkage, head end, and guide are all provided with fixing holes. Fasteners pass through the fixing holes to connect the knob, linkage, head end, and guide. Furthermore, when the knob drives the linkage to rotate relative to the fastener, the head end and guide remain stationary.

[0029] In some embodiments, one of the linkage and the knob is provided with a limiting boss, and the other of the linkage and the knob is provided with a limiting groove. The limiting boss and the limiting groove cooperate to achieve synchronous rotation of the linkage and the knob.

[0030] In some embodiments, both the first and second hinge members include a body and a protrusion at one end of the body, and the end of the body away from the protrusion has a groove in which a retaining ring is engaged; and / or,

[0031] Both the first and second legs include a body and a protrusion at one end of the body, and the end of the body away from the protrusion has a slot in which a retaining ring is engaged; and / or,

[0032] The fastener includes a body and a protrusion at one end of the body, and the end of the body away from the protrusion is provided with a slot, in which a retaining ring is engaged.

[0033] In some embodiments, the guide member has scale lines on the periphery of the first guide rail and the second guide rail; and / or, the grip portion has a recess for gripping.

[0034] The technical advantages of this application are as follows:

[0035] 1. In this application, the flap retractor device is provided with two hooks, namely a first hook and a second hook. The first hook and the second hook are respectively connected to a linkage through a first link and a second link. When the linkage rotates, the first foot and the second foot on it will move along the first arc-shaped slide rail and the second arc-shaped slide rail at the end of the handle, respectively. This will pull the first link hinged to one end of the first foot and the second link hinged to one end of the second foot, so that the first link and the second link move closer or further away from each other, thereby driving the first hook and the second hook to move closer or further away from each other, realizing rapid adjustment of the spacing, thereby quickly completing the flap freeing surgery and saving surgical costs and time.

[0036] 2. In this application, the handle head is also provided with a guide. When the first link and the second link pull the first hook and the second hook move, the guide can constrain the first hook and the second hook to move along the extension direction of the first guide rail and the second guide rail on the guide. On the one hand, it can improve the stability of the overall structure of the flap hook device, and on the other hand, it can realize the adjustment of the straight distance between the first hook and the second hook more quickly and directly. The structure is more reasonable and effective.

[0037] 3. In this application, a first roller is provided on the outer sleeve of the first hinge connecting the first hook and the first link, which can form rolling contact with the first guide rail, making the movement of the first hook smoother and less prone to jamming. Similarly, by providing a second roller on the outer sleeve of the second hinge connecting the second hook and the second link, the movement of the second hook can be made smoother and less prone to jamming; by providing a third roller and a fourth roller on the outer sleeves of the first and second supports, the movement of the first and second links can be made smoother and less prone to jamming, thereby improving the performance of the flap hook device.

[0038] 4. In this application, the bottom of the connecting part of the first hook and the second hook is provided with two protrusions, which can respectively cooperate with the opposite sides of the guide, which is conducive to further improving the stability of the movement of the first hook and the second hook.

[0039] 5. In this application, the first guide rail and the second guide rail are provided with scale lines on their periphery, which makes it convenient for the surgical assistant to intuitively read the value of the distance when adjusting the distance between the first hook and the second hook. The surgical assistant can accurately adjust to the required distance as needed to effectively separate the glandular tissue and skin of the breast at a suitable distance, thereby quickly completing the flap free surgery. Attached Figure Description

[0040] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0041] Figure 1 This is a front view of the flap retractor device provided in one embodiment of this application;

[0042] Figure 2 This is a rear view of the flap retractor device provided in one embodiment of this application;

[0043] Figure 3 yes Figure 1 The cross-sectional view shown along the AA direction;

[0044] Figure 4 yes Figure 3 An enlarged view of point a shown;

[0045] Figure 5 yes Figure 1 The cross-sectional view shown along the BB direction;

[0046] Figure 6 yes Figure 5 An enlarged view of point b shown;

[0047] Figure 7 yes Figure 2 The cross-sectional view shown along the CC direction;

[0048] Figure 8 yes Figure 2 The cross-sectional view shown along the DD direction;

[0049] Figure 9 yes Figure 2 An enlarged view of point a shown.

[0050] Figure label:

[0051] 100. Handle; 110. Grip; 111. Recess; 120. Head end; 121. First arc-shaped slide rail; 122. Second arc-shaped slide rail;

[0052] 210. First hook; 211. Second hinge hole; 220. Second hook; 221. Fourth hinge hole; 230. Connecting part; 231. Locking platform; 232. Butt hole; 240. Rod part; 241. Butt boss; 250. Tip; 260. Mounting hole; 270. Mounting component;

[0053] 300. Adjustment mechanism; 310. Linkage component; 311. First linkage hole; 312. Second linkage hole; 313. Limiting boss; 320. First connecting rod; 321. First hinge hole; 322. Third linkage hole; 330. Second connecting rod; 331. Third hinge hole; 332. Fourth linkage hole;

[0054] 400. Guide component; 410. First guide rail; 420. Second guide rail; 430. Scale line;

[0055] 500. Knob; 510. Limiting groove;

[0056] 610. Fixing hole; 620. First leg; 630. Second leg; 640. First hinge; 650. Second hinge; 660. Fastener; 671. Body; 672. Slot; 673. Protrusion; 674. Snap ring;

[0057] 701, First roller; 702, Second roller. Detailed Implementation

[0058] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of this application. However, those skilled in the art will understand that this application can also be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods have been omitted so as not to obscure the description of this application with unnecessary detail.

[0059] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the specific implementation methods of this application will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this application. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0060] To keep the drawings concise, each drawing only schematically shows the parts relevant to this application, and they do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one."

[0061] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0062] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0063] In the embodiments shown in the accompanying drawings, the directional indications (such as up, down, left, right, front, and back) used to explain the structure and movement of the various components of this application are relative rather than absolute. These descriptions are appropriate when these components are in the positions shown in the drawings. If the description of the positions of these components changes, these directional indications also change accordingly.

[0064] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0065] Current flap retractor devices generally only have one retractor head. This means that during surgery, the assistant needs to use both hands to operate two retractors simultaneously to pull the flap, and another assistant is needed to assist the surgeon in the operation. This results in high labor costs, and it is difficult to ensure the accuracy and stability of the distance between the two retractors when operating them with two hands, which can easily affect the surgical outcome and prolong the operation time.

[0066] In response, this application provides a flap retractor device, see [link to relevant documentation]. Figures 1 to 4 and Figure 7The system includes a handle 100, a hook mechanism, and an adjustment mechanism 300. The handle 100 includes a grip portion 110 and a head end 120. The hook mechanism includes a first hook 210 and a second hook 220, both of which are movably mounted on the head end 120. The adjustment mechanism 300 includes a linkage 310, a first connecting rod 320, and a second connecting rod 330. The linkage 310 has a first support leg 620 and a second support leg 630. One end of the first connecting rod 320 is hinged to the first support leg 620, and the other end is hinged to the first hook 210. One end of the second connecting rod 330 is hinged to the second support leg 630, and the other end is hinged to the second hook 220. The head end 120 is provided with a first arc-shaped slide rail 121 and a second arc-shaped slide rail 122. A first support leg 620 passes through the first arc-shaped slide rail 121, and a second support leg 630 passes through the second arc-shaped slide rail 122. The linkage 310 is configured to rotate relative to the head end 120, thereby driving the first support leg 620 to reciprocate along the extension direction of the first arc-shaped slide rail 121 and driving the second support leg 630 to reciprocate along the extension direction of the second arc-shaped slide rail 122, thereby driving the first link 320 and the second link 330 to move, and further driving the first hook 210 and the second hook 220 to move toward each other or away from each other.

[0067] This embodiment integrates two hooks into the flap retractor device by setting a first hook 210 and a second hook 220. An adjustment mechanism 300 is also provided to move the first hook 210 and the second hook 220, making the distance between them adjustable. The surgical assistant can pre-adjust the distance between the first hook 210 and the second hook 220 to a suitable size as needed, achieving pre-adjustment and facilitating one-handed operation during surgery. Furthermore, adjusting the distance between the first hook 210 and the second hook 220 through the adjustment mechanism 300 provides a more stable and precise distance compared to the current method where the surgical assistant uses both hands to adjust the hooks, helping the surgeon to quickly complete the flap freeing procedure. While achieving the surgical objective, it also effectively reduces manpower and material resources, saving surgical costs and time.

[0068] Specifically, the first arc-shaped slide rail 121 and the second arc-shaped slide rail 122 are arranged opposite each other, and the linkage 310 is rotatably located at the center of the first arc-shaped slide rail 121 and the second arc-shaped slide rail 122. The first hook 210 and the second hook 220 are respectively located on both sides of the arc length direction of the first arc-shaped slide rail 121 (second arc-shaped slide rail 122). The surgical assistant rotates the linkage 310, causing the first leg 620 and the second leg 630 on the linkage 310 to move along the first arc-shaped slide rail 121 and the second arc-shaped slide rail 122 of the handle 100 head end 120, respectively. This pulls the first connecting rod 320 hinged to one end of the first leg 620 and the second connecting rod 330 hinged to one end of the second leg 630, causing the first connecting rod 320 and the second connecting rod 330 to move closer or further apart. This, in turn, causes the first hook 210 and the second hook 220 to move closer or further apart, achieving rapid adjustment of the spacing and thus quickly completing the flap freeing surgery, saving surgical costs and time.

[0069] When one end of the first connecting rod 320 is hinged to the first support leg 620 and is located on the side of the first arc-shaped slide rail 121 near the first hook 210, one end of the second connecting rod 330 is hinged to the second support leg 630 and is located on the side of the second arc-shaped slide rail 122 near the second hook 220. At this time, the distance between the first hook 210 and the second hook 220 is the largest. When one end of the first connecting rod 320 is hinged to the first support leg 620 and is located on the side of the first arc-shaped slide rail 121 near the second hook 220, one end of the second connecting rod 330 is hinged to the second support leg 630 and is located on the side of the second arc-shaped slide rail 122 near the first hook 210. At this time, the distance between the first hook 210 and the second hook 220 is the smallest.

[0070] Specifically, see Figure 1 , Figure 2 , Figure 5 , Figure 6 and Figure 8 The first connecting rod 320 has a first hinge hole 321 at one axial end, and the first hook 210 has a second hinge hole 211. The first hinge member 640 passes through the second hinge hole 211 and the first hinge hole 321 to achieve the hinge connection between the first connecting rod 320 and the first hook 210. Conversely, the second connecting rod 330 has a third hinge hole 331 at one axial end, and the second hook 220 has a fourth hinge hole 221. The second hinge member 650 passes through the fourth hinge hole 221 and the third hinge hole 331 to achieve the hinge connection between the second connecting rod 330 and the second hook 220.

[0071] In a preferred embodiment, the flap retractor device further includes a guide 400, which is mounted on the head end 120 to constrain the movement trajectory of the first retractor 210 and the second retractor 220. Specifically, the guide 400 has a first guide rail 410 and a second guide rail 420, which are arranged sequentially along the extension direction of the guide 400, and both the first guide rail 410 and the second guide rail 420 extend along the extension direction of the guide 400. The first hinge 640 passes through the first guide rail 410. When the linkage 310 rotates and drives the first connecting rod 320 to move, the first hinge 640 moves along the extension direction of the first guide rail 410, thereby driving the first retractor 210 to move along the extension direction of the first guide rail 410. Conversely, the second hinge 650 passes through the second guide rail 420. When the linkage 310 rotates and drives the second connecting rod 330 to move, the second hinge 650 moves along the extension direction of the second guide rail 420, thereby driving the second hook 220 to move along the extension direction of the second guide rail 420.

[0072] In this embodiment, the guide member 400 can constrain the first hook 210 and the second hook 220 to move along the extension direction of the first guide rail 410 and the second guide rail 420 on the guide member 400. On the one hand, it can improve the overall stability of the flap hook device. On the other hand, it can more quickly and directly realize the adjustment of the straight distance between the first hook 210 and the second hook 220, reduce the positional deviation of the first hook 210 and the second hook 220 during the adjustment process, and make the structural setting more reasonable and effective.

[0073] Specifically, see Figure 4 , Figure 7 and Figure 8 The guide member 400 and the linkage member 310 are respectively located on both sides of the head end 120. For example, the linkage member 310 is located on the front of the head end 120 for easy operation by the surgical assistant, and the guide member 400 is located on the back of the head end 120. The linkage member 310, the head end 120, and the guide member 400 are all provided with fixing holes 610. Fasteners 660 pass through the fixing holes 610 to connect the linkage member 310, the head end 120, and the guide member 400. The back of the head end 120 is provided with a mounting boss, and the guide member 400 is provided with a mounting groove on the side facing the head end 120. The mounting groove and the mounting boss cooperate to achieve a limiting connection between the guide member 400 and the head end 120. In this way, when the linkage member 310 rotates relative to the head end 120, it will not affect the guide member 400. The guide member 400 can remain stationary together with the handle 100, ensuring the guiding effect of the guide member 400.

[0074] See in one example embodiment Figure 1 , Figure 2 , Figure 6 , Figure 8 and Figure 9Both the first hook 210 and the second hook 220 include a connecting portion 230, a rod portion 240, and a tip 250. The connecting portion 230 connects the first connecting rod 320 and the rod portion 240, and the tip 250 is fixed to the top of the rod portion 240 to separate the glandular tissue and skin of the breast. Two locking platforms 231 extend from the bottom of the connecting portion 230 and abut against opposite sides (front and back) of the guide member 400. A second hinge hole 211 is formed on the two locking platforms 231 of the first hook 210, and a fourth hinge hole 221 is formed on the two locking platforms 231 of the second hook 220. This structural arrangement helps to further improve the stability of the movement of the first hook 210 and the second hook 220, as well as the overall reliability of the flap hook device. The top of the connecting part 230 is provided with a mating hole 232, and the bottom of the rod part 240 is provided with a mating boss 241. The mating boss 241 is fitted into the mating hole 232. Both the mating boss 241 and the connecting part 230 are provided with mounting holes 260. Mounting parts 270 (such as screws, bolts, rivets, etc.) pass through the mounting holes 260 to realize the connection between the connecting part 230 and the rod part 240.

[0075] Specifically, see Figure 5 , Figure 6 and Figure 8 Both the first hinge member 640 and the second hinge member 650 include a body 671 and a protrusion 673 at one end of the body 671. The end of the body 671 away from the protrusion 673 is provided with a groove 672, and a retaining ring 674 is engaged in the groove 672. The first hinge member 640 passes sequentially from the back side of the head end 120 into the second hinge hole 211 on the outermost retaining platform 231 of the first hook 210, the first guide rail 410, and the first hinge hole 321 of the first hook 210 near the front of the retaining platform 231. The protrusion 673 abuts against the back of the outermost retaining platform 231, and the retaining ring 674 is engaged in the groove 672 and abuts against the front of the first connecting rod 320, so as to achieve a stable connection of the structure. Conversely, the second hinge 650 is inserted sequentially from the back side of the head end 120 into the fourth hinge hole 221 on the outermost locking platform 231 of the second hook 220, the second guide rail 420, and the third hinge hole 331 of the second hook 220 near the front locking platform 231. The protrusion 673 abuts against the back of the outermost locking platform 231, and the retaining ring 674 is locked in the retaining groove 672 and abuts against the front of the second connecting rod 330, thus achieving a stable connection of the structure.

[0076] Further, see Figure 7The linkage 310 has a first linkage hole 311 and a second linkage hole 312. The end of the first connecting rod 320 away from the first hinge hole 321 has a third linkage hole 322, and the end of the second connecting rod 330 away from the third hinge hole 331 has a fourth linkage hole 332. The first support leg 620 passes through the first arc-shaped slide rail 121, the third linkage hole 322, and the first linkage hole 311 to connect the head end 120, the first connecting rod 320, and the linkage 310. The second support leg 630 passes through the second arc-shaped slide rail 122, the fourth linkage hole 332, and the second linkage hole 312 to connect the head end 120, the second connecting rod 330, and the linkage 310.

[0077] In this embodiment, the first support leg 620 and the second support leg 630 preferably each include a body 671 and a protrusion 673 at one end of the body 671. The end of the body 671 away from the protrusion 673 is provided with a groove 672, and a retaining ring 674 is engaged in the groove 672. The first support leg 620 passes sequentially through the first arc-shaped slide rail 121, the first linkage hole 311, and the third linkage hole 322 from the back side of the head end 120. The protrusion 673 abuts against the back side of the head end 120, and the retaining ring 674 is engaged in the groove 672 and abuts against the front side of the first connecting rod 320, so as to achieve a stable connection of the structure. Conversely, the second support leg 630 is inserted sequentially into the second arc-shaped slide rail 122, the second linkage hole 312, and the fourth linkage hole 332 from the back side of the head end 120. The protrusion 673 abuts against the back of the head end 120, and the retaining ring 674 is inserted into the retaining groove 672 and abuts against the front of the second connecting rod 330 to achieve a stable connection of the structure.

[0078] As a preferred option, see Figure 6 and Figure 8 The first hinge member 640 is fitted with a first roller 701, which rolls in contact with the first guide rail 410, making the movement of the first hook 210 smoother and less prone to jamming. Conversely, the second hinge member 650 is fitted with a second roller 702, which rolls in contact with the second guide rail 420, making the movement of the second hook 220 smoother and less prone to jamming. The first support leg 620 is fitted with a third roller, which rolls in contact with the first arc-shaped slide rail 121, and the second support leg 630 is fitted with a fourth roller, which rolls in contact with the second arc-shaped slide rail 122, making the movement of the first connecting rod 320 and the second connecting rod 330 smoother and less prone to jamming. This improves the overall performance of the flap hook device and makes it easier for the surgical assistant to adjust the distance between the first hook 210 and the second hook 220.

[0079] Further, see Figure 1 , Figure 4 , Figure 7 and Figure 8The flap retractor device also includes a knob 500, which is mounted on the linkage 310 and is suitable for driving the linkage 310 to rotate. The knob 500 also has a fixing hole 610, through which a fastener 660 passes to connect the knob 500, linkage 310, head end 120, and guide member 400. Furthermore, one of the linkage 310 and the knob 500 has a limiting boss 313, and the other has a limiting groove 510. Taking the linkage 310 having a limiting boss 313 and the knob 500 having a limiting groove 510 as an example, the limiting boss 313 and the limiting groove 510 cooperate to achieve synchronous rotation of the linkage 310 and the knob 500. Thus, when the surgical assistant rotates the knob 500 relative to the fastener 660, the linkage 310 can be driven to rotate, while the head end 120 and the guide 400 remain stationary.

[0080] Specifically, the fastener 660 includes a body 671 and a protrusion 673 at one end of the body 671. A groove 672 is provided at the end of the body 671 away from the protrusion 673, and a retaining ring 674 is engaged within the groove 672. The fastener 660 passes sequentially through the knob 500, the linkage 310, the head end 120, and the guide member 400 from the front side of the head end 120. The protrusion 673 abuts against the knob 500, and the retaining ring 674 is engaged within the groove 672 and abuts against the back of the guide member 400, achieving a stable connection of the structure.

[0081] Preferably, see Figure 1 The guide member 400 has scale lines 430 on the periphery of the first guide rail 410 and the second guide rail 420. The scale value of the scale line 430 is an integer multiple of 1 mm. When the end of the first connecting rod 320 hinged to the first support leg 620 is located on the side of the first arc-shaped slide rail 121 near the first hook 210, and the end of the second connecting rod 330 hinged to the second support leg 630 is located on the side of the second arc-shaped slide rail 122 near the second hook 220, the distance between the first hook 210 and the second hook 220 is the largest, and the displayed value of the scale line 430 is also the largest. When the end of the first link 320 hinged to the first support leg 620 is located on the side of the first arc-shaped slide rail 121 near the second hook 220, the end of the second link 330 hinged to the second support leg 630 is located on the side of the second arc-shaped slide rail 122 near the first hook 210. At this time, the distance between the first hook 210 and the second hook 220 is the smallest, and the displayed value of the scale line 430 is also the smallest.

[0082] In this embodiment, by setting a scale line 430, the surgical assistant can intuitively read the value of the distance when adjusting the distance between the first retractor 210 and the second retractor 220. In this way, the surgical assistant can accurately adjust the distance between the first retractor 210 and the second retractor 220 to the required size as needed, thereby effectively separating the glandular tissue and skin of the breast at an appropriate distance and quickly completing the flap free surgery.

[0083] Further, see Figure 1 The gripping part 110 is provided with a recess 111 for gripping, which makes it convenient for doctors to grip the gripping part 110 during flap freeing surgery, forming an ergonomic limit and increasing the reliability of the flap retractor device.

[0084] During flap freeing surgery, the surgeon typically adjusts the spacing and direction of the first retractor 210 and the second retractor 220 before the operation, based on the patient's breast morphology. Then, the knob 500 is rotated to adjust and fix the spacing and position of the first retractor 210 and the second retractor 220. For example, when the knob 500 is rotated clockwise, the knob 500 drives the linkage 310 to rotate clockwise around the central axis of the fastener 660, gradually decreasing the spacing between the first retractor 210 and the second retractor 220. When the knob 500 is rotated counterclockwise, the knob 500 drives the linkage 310 to rotate counterclockwise around the central axis of the fastener 660, gradually increasing the spacing between the first retractor 210 and the second retractor 220. After the doctor determines the distance between the first retractor 210 and the second retractor 220, he can hold the gripping part 110 with one hand to operate. The tip 250 on the first retractor 210 and the second retractor 220 can effectively separate the glandular tissue and skin of the breast at an appropriate distance, thereby quickly completing the flap free surgery, reducing manpower and material resources, and saving surgical costs.

[0085] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail or recorded in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0086] It should be noted that the above embodiments can be freely combined as needed. The above are merely preferred embodiments of this application. It should be pointed out that for those skilled in the art, several improvements and modifications can be made without departing from the principles of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A flap retractor device, characterized in that, include: The handle includes a grip and a head end; The hook mechanism includes a first hook and a second hook, both of which are movably mounted on the head end; The adjustment mechanism includes a linkage, a first connecting rod, and a second connecting rod. The linkage is provided with a first support leg and a second support leg. One end of the first connecting rod is hinged to the first support leg, and the other end is hinged to the first hook. One end of the second connecting rod is hinged to the second support leg, and the other end is hinged to the second hook. The head end is provided with a first arc-shaped slide rail and a second arc-shaped slide rail. The first support leg passes through the first arc-shaped slide rail, and the second support leg passes through the second arc-shaped slide rail. The linkage is configured to rotate relative to the head end, causing the first support leg to reciprocate along the extension direction of the first arc-shaped slide rail and the second support leg to reciprocate along the extension direction of the second arc-shaped slide rail, thereby causing the first connecting rod and the second connecting rod to move, and further causing the first hook and the second hook to move in a direction closer to or further away from each other.

2. The flap retractor device according to claim 1, characterized in that, One axial end of the first connecting rod is provided with a first hinge hole, and the first hook is provided with a second hinge hole. A first hinge member passes through the second hinge hole and the first hinge hole to achieve hinge connection between the first connecting rod and the first hook; and, The second connecting rod has a third hinge hole at one end in the axial direction, and the second hook has a fourth hinge hole. The second hinge member passes through the fourth hinge hole and the third hinge hole to realize the hinge connection between the second connecting rod and the second hook.

3. The flap retractor device according to claim 2, characterized in that, Also includes: Guide component, installed at the head end; The guide member is provided with a first guide rail and a second guide rail, the first guide rail and the second guide rail are arranged sequentially along the extension direction of the guide member, and both the first guide rail and the second guide rail extend along the extension direction of the guide member; When the first hinge passes through the first guide rail, and the linkage rotates to move the first connecting rod, the first hinge moves along the extension direction of the first guide rail, thereby causing the first hook to move along the extension direction of the first guide rail; and when the second hinge passes through the second guide rail, and the linkage rotates to move the second connecting rod, the second hinge moves along the extension direction of the second guide rail, thereby causing the second hook to move along the extension direction of the second guide rail.

4. The flap retractor device according to claim 3, characterized in that, Both the first hook and the second hook include a connecting part, a rod part, and a tip; Two locking platforms extend from the bottom of the connecting part, respectively abutting against the opposite sides of the guide member. The second hinge hole is opened in the two locking platforms of the first hook, and the fourth hinge hole is opened in the two locking platforms of the second hook. The connecting part has a docking hole at the top, and the rod has a docking boss at the bottom. The docking boss is locked in the docking hole, and both the docking boss and the connecting part have mounting holes. The mounting member passes through the mounting holes to realize the connection between the connecting part and the rod. The tip is fixed to the top of the rod.

5. The flap retractor device according to claim 3, characterized in that, The linkage component is provided with a first linkage hole and a second linkage hole; The first connecting rod has a third linkage hole at the end away from the first hinge hole, and the second connecting rod has a fourth linkage hole at the end away from the third hinge hole; The first support leg passes through the first arc-shaped slide rail, the third linkage hole, and the first linkage hole to connect the head end, the first connecting rod, and the linkage component; and the second support leg passes through the second arc-shaped slide rail, the fourth linkage hole, and the second linkage hole to connect the head end, the second connecting rod, and the linkage component.

6. The flap retractor device according to claim 5, characterized in that, The first hinge member is fitted with a first roller that makes rolling contact with the first guide rail; the second hinge member is fitted with a second roller that makes rolling contact with the second guide rail. and / or The first support leg is fitted with a third roller that makes rolling contact with the first arc-shaped slide rail; the second support leg is fitted with a fourth roller that makes rolling contact with the second arc-shaped slide rail.

7. The flap retractor device according to claim 5, characterized in that, Also includes: A knob is mounted on the linkage component and is adapted to drive the linkage component to rotate. The knob, the linkage, the head end, and the guide are all provided with fixing holes. The fastener passes through the fixing holes to connect the knob, the linkage, the head end, and the guide. Furthermore, when the knob drives the linkage to rotate relative to the fastener, the head end and the guide remain stationary.

8. The flap retractor device according to claim 7, characterized in that, One of the linkage component and the knob is provided with a limiting boss, and the other of the linkage component and the knob is provided with a limiting groove. The limiting boss and the limiting groove cooperate to realize the synchronous rotation of the linkage component and the knob.

9. The flap retractor device according to claim 7, characterized in that, Both the first and second hinge members include a body and a protrusion at one end of the body, and the end of the body away from the protrusion has a groove in which a retaining ring is engaged; and / or, Both the first and second legs include a body and a protrusion at one end of the body, and the end of the body away from the protrusion has a groove in which a retaining ring is engaged; and / or, The fastener includes a body and a protrusion at one end of the body, and the end of the body away from the protrusion is provided with a slot, in which a retaining ring is engaged.

10. The flap retractor device according to any one of claims 3-9, characterized in that, The guide member has scale lines on the periphery of the first guide rail and the second guide rail; and / or, the gripping part has a recess for gripping.

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