A graft handling system for ligament reconstruction in orthopedic surgery

Abstract

A graft arrangement platform for ligament reconstruction in orthopedic surgery, comprising: an operating table, a first clamping member, a second clamping member, a folding positioning body, the folding positioning body is arranged at one end of the operating table, the second clamping member and the first clamping member are configured: the first clamping member is configured to clamp one end of the graft, the other end of the graft is clamped to the second clamping member around the folding positioning body, the second clamping member is located in the first configuration position, in the first configuration position, the second clamping member is arranged opposite to the first clamping member, and the second clamping member is movably radially movable relative to the folding positioning body; the second clamping member is configured to be movably moved to the second configuration position, in the second configuration position, the second clamping member is on the same side of the first clamping member, and the graft enters a graft folding arrangement state with the folding positioning body as a folding point, and a ligament anchor is configured to pass through the graft and be fixed on the folding positioning body.

Description

Technical Field

[0001] This invention belongs to the field of medical device technology, and in particular relates to a ligament reconstruction and graft placement platform and a graft placement system for orthopedic surgery. Background Technology

[0002] In routine tendon and ligament reconstruction surgeries in orthopedics and sports medicine, the first step is to harvest the tendon. The subsequent tendon treatment mainly involves removing the attached muscle, weaving the tendon, and measuring its diameter. This process requires tools for removing the muscle attached to the tendon, such as steel rulers and scissors. However, these tools are not specifically designed for muscle removal, and improper use can damage the tendon. While there are dedicated tendon scrapers, existing scrapers primarily rely on pinching the tendon with fingers for muscle removal, resulting in poor grip, inconvenience, and hand fatigue during prolonged use. Inconvenience or hand fatigue can lead to errors that may damage the tendon. To address this, Huang Weifeng disclosed a tendon scraper in application number CN202120639959.5. This scraper includes a scraper body, with a removal section at the bottom for removing the muscle attached to the tendon. This removal section has a small width (i.e., thickness) to facilitate muscle removal. In a preferred embodiment, the bottom of the removal section is a semi-circular arc with a diameter of 0.1 cm. A scale is provided along the length of the removal section to facilitate the measurement of tendon length. A gripping and tightening part is provided at the top of the scraper body. During use, the user (usually a medical professional) holds the tendon scraper, with all fingers except the thumb passing through the gripping groove. The gripping and tightening part faces inwards towards the palm. The fingers grip, causing the scraper body and its top gripping and tightening part to move inwards towards the palm. At this point, the top of the gripping and tightening part presses against the inside of the fingers, thus applying force at the gripping groove to hold the scraper body. This grip method provides a good feel, is easy to use, and does not easily cause hand fatigue even after prolonged use, helping to reduce errors and avoid tendon damage.

[0003] Peking University Third Hospital (Peking University Third Clinical Medical College) disclosed a tendon extraction device in CN202023051765.8, comprising a pad, a pressure block, and a scraper. The upper surface of the pad is inclined, with a groove running downwards along the inclined direction. The tendon to be extracted can be placed in the groove. The pressure block is located on the inclined surface at the top of the groove and is threadedly connected to the pad by bolts. The pressure block can press the tendon in the groove onto the upper surface of the pad. The scraper can be used to scrape the tendon to be extracted placed in the groove. This device uses bolt fastening instead of traditional manual pressing, improving the stability of the tendon during stripping. Furthermore, the scraping of the tendon within the groove prevents it from rolling, further enhancing the stability of the tendon during the stripping process. Additionally, the device can be equipped with a CPU and a pressure sensor to automatically detect and tighten the tendon, facilitating use by medical personnel.

[0004] CN201620928963.2 discloses a simple weaving table for anterior cruciate ligament (ACL) reconstruction and tendon grafting, facilitating ACL reconstruction and weaving. It includes a worktable and a controller. A longitudinal rear sliding groove is provided on the upper surface of the worktable, and a longitudinal rear sliding mechanism is provided within the groove. A rear support column is fixedly mounted on the upper surface of the longitudinal rear sliding mechanism. A rear wire fixing mechanism is provided on the rear support column, with one end of a rear pull rope fixedly connected to the rear wire fixing mechanism, and the other end of the pull rope fixedly connected to a rear hook with a first-order tension sensor. A longitudinal front sliding mechanism is provided within the front groove, and a front support column is fixedly mounted on the upper surface of the longitudinal front sliding mechanism. A front wire fixing mechanism is provided on the front support column, with one end of a front pull rope fixedly connected to the front wire fixing mechanism, and the other end of the front pull rope fixedly connected to a front hook with a second-order tension sensor. Unitech (Chongqing) Medical Technology Co., Ltd. CN202221406765.1 The medial ligament worktable incorporates multiple vernier calipers to facilitate accurate measurement of tendon length.

[0005] However, the entire surgical procedure requires a platform that is smaller in area and easier to operate to improve the speed of the procedure. Summary of the Invention

[0006] Based on the above-mentioned technical problems, the present invention provides a platform for ligament reconstruction in orthopedic surgery.

[0007] To achieve the above objectives, the present invention provides a graft handling platform for ligament reconstruction in orthopedic surgery, comprising an operating table, a first clamping component, a second clamping component, and a folding positioning body, wherein the folding positioning body is disposed at one end of the operating table.

[0008] The second clamping member and the first clamping member are configured as follows:

[0009] The first clamp is configured to clamp one end of the graft, and the other end of the graft is clamped to the second clamp around the folding positioning body. The second clamp is located in a first configuration position, in which the second clamp is disposed opposite to the first clamp, and the second clamp is movably radially movable relative to the folding positioning body.

[0010] The second clamping member is configured to be movable to a second configuration position. In the second configuration position, the second clamping member is on the same side as the first clamping member, and the graft enters the graft folding state with the folding positioning body as the folding point. The ligament anchor is configured to pass through the graft and fix it on the folding positioning body.

[0011] Preferably, the platform includes a second sliding mechanism, in which a second clamping member is slidably disposed, so as to enable the second clamping member to move radially relative to the folding positioning body.

[0012] Preferably, the platform includes a first sliding mechanism, a first clamping member is slidably disposed within the first sliding mechanism, and the first sliding mechanism and the second sliding mechanism are arranged in parallel.

[0013] Preferably, the second clamping member is configured to be movable to the second configuration position, further comprising: the second clamping member being configured to be detachably removed from the second sliding mechanism and then engaged within the first sliding mechanism; an adjustable loop titanium plate being configured to be hung on the first clamping member for weaving the graft; and then the adjustable loop titanium plate and other ligament anchors being fixed to the folded positioning body.

[0014] Preferably, the platform also includes a measuring device that is movably mounted on the operating table to measure and easily mark the measurement object, including the graft.

[0015] The present invention also provides a graft handling system, comprising an operating table, a first clamping member, a second clamping member, and a folding positioning body, wherein the folding positioning body is disposed at one end of the operating table.

[0016] The second clamping member and the first clamping member are configured as follows:

[0017] The first clamp is configured to clamp one end of the graft, and the other end of the graft is clamped to the second clamp around the folding positioning body. The second clamp is located in a first configuration position, in which the second clamp is disposed opposite to the first clamp, and the second clamp is movably radially movable relative to the folding positioning body.

[0018] The second clamping member is configured to be movable to a second configuration position. In the second configuration position, the second clamping member is on the same side as the first clamping member, and the graft enters the graft folding and tidying state with the folding positioning body as the folding point.

[0019] Because the present invention adopts the above technical solution, it has the following advantages and positive effects compared with the prior art:

[0020] The folding positioning system features a first clamp holding one end of the graft, while the other end is secured to a second clamp after passing through the folding positioning system. This facilitates graft preparation (such as cleaning, initial weaving, and measurement) by the surgeon. Furthermore, the second clamp is movable to the same side as the first clamp, allowing the graft to be folded and prepared using the folding positioning system as the folding point (e.g., for secondary weaving, fixing, measuring, and marking ligament anchors). During surgery, surgeons prioritize surgical time and precision. This preparation platform allows surgeons to perform graft cleaning, initial weaving, and measurement using the first clamp, folding positioning system, and second clamp. It also enables rapid repositioning for secondary weaving, fixing, measuring, and marking ligament anchors, allowing for seamless operation without additional time commitment. This innovative folding positioning system allows for immediate folding of grafts such as ligaments, precise measurement of graft length, and marking of grafts during subsequent procedures. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of an example of a platform for ligament reconstruction in orthopedic surgery. Detailed Implementation

[0022] The following detailed description, in conjunction with the accompanying drawings and specific embodiments, provides a more detailed account of a graft placement platform for ligament reconstruction in orthopedic surgery proposed by the present invention. The advantages and features of the invention will become clearer from the following description. Obviously, the described embodiments are only some, not all, of the embodiments of the invention. The components of the embodiments of the invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0024] It should be noted that similar labels in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0025] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are only for the convenience of describing this invention and simplifying the description, and 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 a limitation of this invention. In addition, the terms "first," "second," "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0026] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," not that the structure must be completely horizontal, but can be slightly tilted.

[0027] In the description of this application, "proximal end" refers to the end closer to the operator, and "distal end" refers to the end farther away from the operator.

[0028] Ligaments are long, thin bands of collagenous connective tissue that connect bones and stabilize their movement relative to each other. Each end of a ligament is secured to a bone. Torn ligaments, particularly in the knee, ankle, and shoulder, are common injuries in athletes and often require extensive reconstruction or replacement.

[0029] Unlike vascular tissues such as bone and skin, torn or damaged ligaments do not heal naturally because they are not vascularized; that is, they are not supplied with a vascular network that provides blood and lymph for tissue regeneration and repair. Therefore, they must be repaired or replaced with a substitute material that mimics the biomechanical properties of the original ligament, if possible. Surgical repair of the TOM ligament, such as through patching, cannot restore the ligament's full strength and elasticity, and therefore has limited benefits. On the other hand, surgical replacement of torn or damaged ligaments with natural or artificial prostheses can essentially restore a patient's normal level of activity and is often prescribed. However, in the case of replacement with natural or synthetic substitutes, the replacement ligament must be anchored to the corresponding bone in a manner that allows for a substantially similar function to the original ligament.

[0030] The anterior cruciate ligament (ACL) connects the femur and tibia within the knee joint. The ACL is the single most important stabilizing structure within the knee joint: it restricts the movement of the joint bones and resists anterior displacement of the tibia relative to the femur in all flexion positions. The ACL also resists forces that tend to hyperextend the knee.

[0031] One of the most widely used ACL replacements is the bone-patellar tendon-bone (BPTB) graft. As used herein, the term "graft" refers to a natural or synthetic implantable replacement from various tissues. The central third of the patient's or donor's patellar tendon, along with the bone insertion portion of the patellar tendon, is used as a replacement for the damaged ACL. The bone insertion is preferably harvested as a cylindrical bone plug to facilitate the implantation and fixation of the BPTB graft into the bone tunnel of the patient's knee joint. BPTB grafts are a common choice for ACL reconstruction surgery due to their high load-bearing strength and excellent bone fixation properties. Another commonly used ACL replacement is the iliac band (ITB) graft. The ITB is a portion of the ligament that can be harvested from a portion of the iliac ligament located within the anterior ligamentous structures of the knee joint, either from the patient or the donor.

[0032] Typically, to use BPTB or ITB grafts, or grafts made from the patient's own ligaments, bone tunnels are created in the femur and tibia. The bone plug of the BPTB graft or the end of the ITB graft is positioned within and fixed to the tunnel with a predetermined tension and angular orientation established in the tendon. For effective fusion of the BPTB graft's bone plug with the sidewalls of the bone tunnel, a close fit is required, and direct contact is preferred. From a functional point of view, specific tension within the ligament is also important when the ligament anchor is in place; ligament anchoring is achieved using devices such as looped titanium plates.

[0033] While the platforms and systems described in this application can be used to repair torn anterior cruciate ligaments (ACLs), these methods and systems are not limited to ACL repair but are generally applicable to repairing tissues, particularly tissues within contractile areas of the body (including joints) that would benefit from connection to bone. Therefore, although the embodiments herein illustrate ACL repair, it should be understood that these methods and systems can be used to repair any tissue, graft, or implant. For example, repair of torn ligaments in the shoulder, hip, spine, etc.

[0034] This application may include the steps of forming a tunnel, a passage, tunnel, or similar (for convenience, it may be referred to as a "tunnel") passing through a bone (e.g., the femoral head, tibial head) from a first side of the bone (or the first side if there is a stump) to a second side of the bone, and passing a graft through the tunnel from the first side or the second side, and through the bone passage to the opposite side, where it is tightened and fixed in place.

[0035] This application relates to a method for percutaneous tissue repair, comprising the steps of: forming a tunnel through bone such that the tunnel extends from a first side of the bone to a second side of the bone; passing a graft through the tunnel from the first side of the bone, through the tunnel and adjacent to the second side of the bone; securing the graft within the tunnel adjacent to the second side of the bone; and suturing the torn end of the tissue or anchoring it with a ligament anchor.

[0036] During orthopedic surgery, this invention utilizes a graft preparation platform to prepare the grafts. There are many types of grafts, which can be categorized into three types based on their origin: autologous, allogeneic, and artificial. Taking autologous and allogeneic grafts as examples, the preparation platform can include the following functions:

[0037] 1. A platform for clearing grafts, especially when autologous ligaments are removed during surgery, allows for the removal of residual muscle on the ligament. (For example, during surgery, medical personnel typically make an incision of about 2 cm in length, about 1.5-2 cm medial to the tibial tuberosity, which also facilitates subsequent location of the tibial tunnel. After harvesting the target tendon, the muscle tissue to which the tendon is attached needs to be removed using tools on the platform of this invention.)

[0038] 2. First weaving platform of the graft: For example, place the thinner tendon in the inner layer and wrap it with a thicker tendon. Use the rope tendon weaving method to weave it. The length of the tendon weaving used for the tendon near the tibia is about 3.5-4cm. The distal end is rounded off.

[0039] 3. Tendon folding and straightening platform, which facilitates the attachment of ligament anchors, including adjustable loop titanium plates;

[0040] 4. Marking the platform: Adjust the coil length of the looped titanium plate according to clinical needs, and mark the corresponding length on the tendon.

[0041] This example's graft management platform can perform all functions, or only some of them. Please refer to [link / reference needed]. Figure 1 This is an example diagram of a graft placement platform for ligament reconstruction in orthopedic surgery, as described in this example. It includes an operating table 31, a first clamping member 32, a second clamping member 33, and a folded positioning body 34.

[0042] The operating table 31 can be a long, flat plate. A scraper area can be set in the middle of the operating table 31, which can realize the aforementioned graft cleaning platform. The scraper area can be a flat plate 35, set in the middle of the operating table. The flat plate 35 and the operating table 31 can be integrally manufactured or can be detachably installed on the operating table 31. In the operating area of ​​the operating table 31, a receiving space for placing professional tools such as scrapers can also be set on one side of the platform 35. Of course, in this example, this receiving space can also be omitted, especially when medical personnel can use a scalpel to remove muscle tissue attached to tendons. In this example, the folding positioning body 34 is set at one end of the operating table 31. A receiving space for placing professional tools such as scrapers can be set on one side of the flat plate 35, and the folding positioning body 34 can also be set on the opposite side. The folding positioning body 34 is columnar and protrudes from the operating table 31. The folding positioning body 34 can be integrally manufactured with the operating table 31 or can be detached from the operating table 31 for easy sterilization. The folded positioning body 34 is generally also provided with a notch 341 for fixing the graft.

[0043] The second clamping member 33 and the first clamping member 32 are configured as follows:

[0044] The first clamping member 32 is configured to clamp one end of the graft, and the other end of the graft is clamped to the second clamping member 33 by passing around the folding positioning body 34. The second clamping member 33 is located in a first configuration position. In the first configuration position, the second clamping member 33 is arranged opposite to the first clamping member 32, and the second clamping member 33 can move radially relative to the folding positioning body 34.

[0045] The second clamping member 33 is configured to be movable to a second configuration position. In the second configuration position, the second clamping member 33 is on the same side as the first clamping member 32, and the graft enters the graft folding and tidying state with the folding positioning body 34 as the folding point. Ligament anchors such as the looped titanium plate are configured to pass through the graft and fix it on the folding positioning body 34.

[0046] The core of this invention lies in the design of the folding positioning body 34. The first clamping member 32 is configured to hold one end of the graft, while the other end of the graft is wrapped around the folding positioning body 34 and clamped onto the second clamping member 33. This facilitates the surgeon's handling of the graft (such as cleaning, initial weaving, and measurement). Furthermore, the second clamping member 33 is configured to be movable to the same side as the first clamping member 32, and the graft enters a folded and arranged state with the folding positioning body 34 as the folding point (such as secondary weaving, fixing the position of ligament anchors, measurement, and marking). During surgery, the surgeon's primary considerations are surgical time and precision. This arrangement platform allows the surgeon to perform cleaning, initial weaving, and measurement of the graft using the first clamping member 32, the folding positioning body 34, and the second clamping member 33. The surgeon can also quickly move the position to complete secondary weaving, fixing the position of ligament anchors, measurement, and marking, achieving seamless operation without requiring additional time during the surgery. Most importantly, the first clamping element 32, the folding positioning element 34, and the second clamping element 33 are spaced apart from the operating table 31. This height gap provides ample space for the surgeon to clean and arrange the grafts, facilitating rapid operation. During graft preparation, it allows for convenient measurement and quick marking, improving the precision of the surgeon's operation. In particular, the innovative folding positioning element 34 allows grafts such as ligaments to be folded immediately, enabling precise measurement of graft length and marking on the grafts during subsequent surgical planning.

[0047] In this example, the platform includes a second sliding mechanism 37, and a second clamping member 33 is slidably disposed within the second sliding mechanism 37 to achieve radially movable movement of the second clamping member 33 relative to the folding positioning body 34. The platform also includes a first sliding mechanism 36, and a first clamping member 32 is slidably disposed within the first sliding mechanism 36. The first sliding mechanism 36 and the second sliding mechanism 37 are arranged in parallel. The first sliding mechanism 36 and the second sliding mechanism 37 can be sliding grooves formed on the operating table 31, or they can be separate sliding mechanisms protruding from the operating table 31. It should also be noted that in this example, the second clamping member 33, the second sliding mechanism 37, the first clamping member 32, and the first sliding mechanism 36 are not limited to slider and groove structures, as long as they achieve radially movable movement relative to the folding positioning body 34. In addition, the second clamping member 33 can slide within the second sliding mechanism 37 and can also be detached from the second sliding mechanism 37 and positioned in a second configuration position. Conventional mechanical structures that achieve this function should fall within the protection scope of this invention.

[0048] Another point to note is that the first configuration position of this invention is mainly to facilitate the physician's handling of the graft (such as cleaning, initial weaving, measurement, etc.), while the second configuration position is to enable the graft, such as ligaments, to be folded immediately, so as to accurately measure the length of the graft and mark the graft during subsequent surgery.

[0049] The second clamping member 33 is configured to be movable to a second configuration position, further comprising: the second clamping member 33 is configured to be detachably removed from the second sliding mechanism and then locked in the first sliding mechanism; the first clamping member is configured to be fitted with ligament anchors such as adjustable loop titanium plates for weaving the graft; and the adjustable loop titanium plates and other ligament anchors are then fixed to the folded positioning body 34.

[0050] This example may also include a measuring device that is movably mounted on an operating table to measure objects, including grafts, for easy labeling.

[0051] The first sliding mechanism and the first sliding mechanism are located on the upper and lower sides of the scraper area, respectively, and the folding positioning body is located on one side of the scraper area.

[0052] Please see again Figure 1 The first and second clamping members each further include a slider body, with an operating part for user operation and a column respectively on the slider body, and a clamping unit for clamping the transplanted object on the column. The height of the notch from the operating table is the same as the height of the clamping unit from the operating table.

[0053] The advantages of this example are: 1. The finished product has half the area of ​​existing tendon shaping platforms, reducing costs. 2. During the first tendon weaving, the multi-functional column E reduces the operating range and the probability of contamination. 3. The multi-functional column E and the ruler F facilitate user operation and reduce errors when adjusting the coil length of the looped titanium plate and marking the tendon.

[0054] This example also provides a method for repairing damaged tissue, including the following steps:

[0055] One end of the traction line is fitted with proximal tissue for traction of the residual end;

[0056] A tunnel is formed near the stump of the damaged tissue, extending through the bone from the first side to the second side of the bone, and a fixation plate is fixed to the bone surface through the tunnel.

[0057] The other end of the traction line is configured to pass through the traction line hole and be fixed to the mounting plate;

[0058] Use a graft handling platform to handle the grafts;

[0059] Two reinforcing holes are provided at each end of the graft to enter the stump channel for pre-repair of damaged tissue, and the graft is tightened and fixed at the distal end of the stump channel. The graft is used to provide support and a repair channel for the self-repair of the damaged tissue at the stump to solve the problem of stump sagging.

[0060] The two reinforcing holes are set correspondingly with the center of the fixing plate as the origin, and the bridge between the two reinforcing holes should be the intermediate suspension tension of the transplant, and the stress of the bridge should be greater than the maximum tension of the intermediate suspension tension of the transplant.

[0061] Grafts can be used to provide support and repair pathways for the self-repair of damaged tissue at the stump, allowing the damaged tissue at the stump to maintain tension and position, thus facilitating short-term repair and long-term healing. This method greatly reduces graft implantation and attachment, resulting in good overall enhancement and high mechanical strength.

[0062] Second example

[0063] This invention is not only applicable to orthopedics. This invention provides a graft placement system, characterized by an operating table, a first clamping member, a second clamping member, and a folding positioning body, with the folding positioning body positioned at one end of the operating table.

[0064] The second clamping member and the first clamping member are configured as follows:

[0065] The first clamp is configured to clamp one end of the graft, and the other end of the graft is clamped to the second clamp around the folding positioning body. The second clamp is located in a first configuration position, in which the second clamp is disposed opposite to the first clamp, and the second clamp is movably radially movable relative to the folding positioning body.

[0066] The second clamping member is configured to be movable to a second configuration position. In the second configuration position, the second clamping member is on the same side as the first clamping member, and the graft enters the graft folding and tidying state with the folding positioning body as the folding point.

[0067] The system includes a second sliding mechanism and a first sliding mechanism. The second clamping member is slidably disposed within the second sliding mechanism to enable the second clamping member to move radially relative to the folding positioning body. The first clamping member is slidably disposed within the first sliding mechanism. The first sliding mechanism and the second sliding mechanism are arranged in parallel.

[0068] This operating table is creatively designed with a folding positioning device, which allows grafts such as ligaments to be folded immediately, accurately measuring the length of the graft and marking it when planning subsequent surgeries.

[0069] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, if these changes fall within the scope of the claims of the present invention and their equivalents, they shall still fall within the protection scope of the present invention.

Claims

1. A graft placement platform for ligament reconstruction in orthopedic surgery, characterized in that, The system includes an operating table, a first clamping component, a second clamping component, and a folding positioning body, wherein the folding positioning body is located at one end of the operating table. The second clamping member and the first clamping member are configured as follows: The first clamping member is configured to clamp one end of the graft, and the other end of the graft is clamped to the second clamping member around the folding positioning body. The second clamping member is located in a first configuration position, in which the second clamping member is disposed opposite to the first clamping member, and the second clamping member is movably radially movable relative to the folding positioning body. The second clamping member is configured to be movable to a second configuration position. In the second configuration position, the second clamping member is on the same side as the first clamping member, and the graft enters a folded state with the folding positioning body as the folding point. The ligament anchor is configured to pass through the graft and fix it on the folding positioning body.

2. The platform as described in claim 1, characterized in that, The platform includes a second sliding mechanism, in which the second clamping member is slidably disposed, so as to enable the second clamping member to move radially relative to the folding positioning body.

3. The platform as described in claim 2, characterized in that, The platform includes a first sliding mechanism, in which the first clamping member is slidably disposed. The first sliding mechanism and the second sliding mechanism are arranged in parallel.

4. The platform as described in claim 3, characterized in that, The second clamping member is configured to be movable to a second configuration position, which further includes: the second clamping member is configured to be detachably removed from the second sliding mechanism and then engaged in the first sliding mechanism; an adjustable loop titanium plate is configured to be hung on the first clamping member to weave the graft; and then the adjustable loop titanium plate is fixed on the folded positioning body.

5. The platform as described in claim 1 or 3, characterized in that, It also includes a measuring device movably mounted on the operating table for measuring and marking objects, including grafts.

6. The platform as described in claim 3, characterized in that, A scraper area is provided in the middle of the operating table. The first sliding mechanism and the second sliding mechanism are located on the upper and lower sides of the scraper area, respectively. The folding positioning body is located on one side of the scraper area.

7. The platform as described in claim 1 or 3, characterized in that, The first clamping member and the second clamping member each further include a slider body, wherein the slider body is respectively provided with an operating part for user operation and a column, and the column is provided with a clamping unit for clamping the transplanted object.

8. The platform as described in claim 7, characterized in that, The folding positioning body is provided with a notch for fixing the graft, and the height of the notch from the operating table is the same as the height of the clamping unit from the operating table.

9. A graft preparation system, characterized in that, The system includes an operating table, a first clamping component, a second clamping component, and a folding positioning body, wherein the folding positioning body is located at one end of the operating table. The second clamping member and the first clamping member are configured as follows: The first clamping member is configured to clamp one end of the graft, and the other end of the graft is clamped to the second clamping member around the folding positioning body. The second clamping member is located in a first configuration position, in which the second clamping member is disposed opposite to the first clamping member, and the second clamping member is movably radially movable relative to the folding positioning body. The second clamping member is configured to be movable to a second configuration position, in which the second clamping member is on the same side as the first clamping member, and the graft enters a graft folding and tidying state with the folding positioning body as the folding point.

10. A graft preparation system as described in claim 9, characterized in that, The system includes a second sliding mechanism and a first sliding mechanism. The second clamping member is slidably disposed within the second sliding mechanism to enable the second clamping member to move radially relative to the folding positioning body. The first clamping member is slidably disposed within the first sliding mechanism. The first sliding mechanism and the second sliding mechanism are arranged in parallel.

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