• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A bone reshaping and internal bone fixation clamping device (100) according to the invention comprises a first clamping element (102) and a second clamping element (104) having an upper portion (106), a middle portion (108) and a lower portion (110) to form a scissors-like construction. The clamping elements are hinged together in the central portion at a pivot point by means of a screw (112). A pair of arcuate members are configured in the upper portion to define a first aperture (114) for receiving and retaining a fracture bone for repositioning and a second aperture (116) having a U-shaped profile about a substantially wide range for simultaneously slidingly receiving a plate for internal fixation without removing the device during the surgical procedure. The clamping device serves to secure the bones in a debris fracture, the clamping elements holding the bone rigidly to provide traction for aligning the fracture site.
    公开号:CH713249B1
    申请号:CH01495/17
    申请日:2017-12-08
    公开日:2018-09-14
    发明作者:Javad Shariati Mohammad；Zakeralhoseini Sajjad
    申请人:Javad Shariati Mohammad；Zakeralhoseini Sajjad；
    IPC主号:
    专利说明:

    Description [0001] Orthopedic trauma treatment includes surgical procedures ranging from the treatment of simple fractures to the treatment of severe life-threatening multiple bone fractures. Bridging the fractured bones in areas such as the leg, forearm, thigh and extra-articular fractures due to complex injuries is as difficult a task in surgical orthopedic surgery as it is to facilitate proper healing. Conventionally, bone clips are used to align the bone fracture to perform a reduction procedure. Reduction is nothing more than a recovery procedure that is performed in two ways, as open or closed reduction. However, it is common practice to use an open reduction procedure to treat most of the multiple bone fractures. With open reduction, fracture fragments are surgically exposed by dissection of the tissues. Once repositioned, it is maintained by internal fixation by attaching plates, screws or other implants to restore the normal anatomy of the fractured bone. Various reduction methods are available in the prior art.
    At present, there are many devices and methods for treating the fractured bones by open reduction. However, there is a need in the art for improved devices that assist surgeons, especially in the treatment of long bone fractures such as leg, forearm, or femoral fractures, and in extra-articular fractures, to perform both reduction and internal fixation of the plate , In particular, most devices do not allow the surgeon to place the internal fixation plates simultaneously with the reduction procedure. Using conventional bone staples, such as provisional fixation techniques, the surgeon must make a temporary fixation with narrow and weak pins or screws that pierce the fracture site, and then open the bone clip to attach the internal fixation plate. However, this method has many limitations, such as the loss of the reduction process midway due to inherently low strength, the emergence of additional fracture in the bone due to the shear force of pins or screws after provisional fixation of the screw and pins to the surgeon fail to bring the plate into an anatomical position, prolonged surgery time and other complications such as infection, blood loss, general or regional anesthetic complications due to the increased duration of the procedure.
    The inadequacy of conventional bone clamps is that if they hold the bone at the fracture site, there is not enough free space to push the plate through for the intended bone. This impairment is very common in all types of conventional bone staples.
    Existing devices and methods that are currently available in the art have certain shortcomings that do not allow to use an effective and effective clamping device for stable positioning at the fracture site for reduction, while at the same time performing internal fixation of the plate ,
    Accordingly, there is a clear and current need for a surgical device, such as a surgical orthopedic interventional clamp, for simultaneously performing the reduction and internal fixation of the fractured bone without removing the device from the fracture site.
    Summary of the Invention The present invention relates to bone reshaping and internal bone fixation apparatus used in orthopedic surgery. The bone reshaping and internal bone fixation device is a clamping device used in the surgical orthopedic procedure to simultaneously perform the procedures of reduction and internal fixation without removing the device from the fracture site.
    The clamping device comprises a first clamping element and a second clamping element having an upper portion, a central portion and a lower portion, so that they form a scissor-type construction. The first clamping element and the second clamping element are hinged together in the central portion at a pivot point by means of a screw. The upper portion of the first clamping member and the second clamping member is adapted to include a pair of arcuate members to form a first opening for receiving and holding a fracture bone for reduction and a second opening having a U-shaped profile about one to form a substantially wide area for receiving a plate for internal fixation.
    The lower portion is a handle having a pin member and a locking screw for selectively adjusting the clamping device 100 to remove the fracture bone for simultaneously performing the reduction and internal fixation of the plate without removing the device 100 during the surgical procedure. to align in a stable position. The screw in the handle also allows the surgeon to securely fix the grip of the fracture site of the bone.
    In another embodiment, the first opening has a pair of bone gripping surfaces for receiving and holding the fracture bone, the first gripping surface having one or more serrated elements, and the second gripping surface having a smooth layer. This embodiment allows a secure holding of the fracture bone for repositioning with sufficient friction.
    One aspect of the present disclosure is directed to a clamp device for open reduction and internal fixation in a surgical orthopedic procedure. The apparatus comprises (a) a first clamping member and a second clamping member comprising an upper portion, a middle portion and a lower portion to form a scissors-type construction; wherein the first clamping member and the second clamping member are hinged together in the central portion at a pivot point by means of a screw; (b) wherein the upper portion of the first clamping member and the second clamping member comprises a pair of arcuate members to form a first opening for receiving and holding a fracture bone for repositioning and a second opening having a U-shaped profile substantially around one wide area for slidingly receiving a plate for internal fixation; and (c) wherein the lower portion is a handle having a pin member and a locking screw for selectively adjusting the clamping device 100 to secure the fractured bone to simultaneously perform the reduction and internal fixation of the plate without the device 100 during the surgical procedure remove, align in a stable position.
    In another embodiment, the screw in the middle portion is very safe and strong to withstand the high force, since the clamping device must grasp the fracture bone firmly to create a tensile force for performing the reduction, in particular when combining Clamps when, in debris fractures, the clamping elements of the device are used in accordance with a procedure on each side of the fracture to produce a distraction force to achieve reduction. In another method, the device could be used by the surgeon to hold the fracture site in a simple fracture. When combining clamps, the assistant, in a debris fracture, holds the bone with two clamping elements of the device on either side of the fracture on the unfractured bone and generates the traction force to indirectly orient the fracture site. The surgeon then passes the plate to the fracture site with the clamps near the fracture site and the plate should be long enough to have at least 4 screws in unfractured bone on each side of the fracture. To achieve this tensile force for reduction, so solid and secure clamping elements of the device with handles and screws are required.
    In one embodiment, the first opening in the upper portion of the first clamping member and the second clamping member has an oval configuration to adaptively receive the fracture bone for reduction. In a further embodiment, the first opening comprises a pair of bone gripping surfaces for receiving and holding the fractured bone, a first gripping surface having one or more serrated elements, and a second gripping surface having a smooth layer. In another embodiment, the combination of the serrated surface and the smooth surface in the first opening of the arcuate members is designed to provide sufficient friction to securely hold the fractured bone for reduction during surgery. In one embodiment, the bone gripping surface comprises a coating to provide a high coefficient of friction for gripping the fractured bone during surgery. In a further embodiment, the wide area formed by the U-shaped profile in the second opening is designed to be larger than the width of the plate felted for internal fixation during the surgical procedure. In one embodiment, the clamping device further comprises a nut adapted to slide on the set screw to adjust the clamp to orient the fractured bone in the stable position during the surgical procedure. In one embodiment, the clamping device is made of a stainless steel material for use in the surgery, which is autoclavable.
    An open reduction and internal fixation clamp apparatus for a surgical orthopedic procedure may include: (a) a first clamp member and a second clamp member including an upper portion, a middle portion, and a lower portion to form a scissors-type construction ; wherein the first clamping member and the second clamping member are hinged together in the central portion at a pivot point by means of a screw; wherein the upper portion of the first clamping member and the second clamping member is adapted to include a pair of arcuate members to form a first opening for receiving and holding a fracture bone for reduction and a second opening having a U-shaped profile to form a substantially wide area for receiving a plate for internal fixation; (c) wherein the first opening comprises a pair of bone gripping surfaces having one or more serrated elements for securely holding the high coefficient of friction fracture bone and the wide area in the second opening is made larger than the width of the plate introduced for internal fixation; and (d) wherein the lower portion is a handle having a pin member and a locking screw for selectively adjusting the clamping device 100 to lock the fractured bone to simultaneously perform the reduction and internal fixation of the plate without the device 100 during the surgical procedure remove, align in a stable position.
    Also described is a method of using a clamp for open reduction and internal fixation in a surgical orthopedic procedure, comprising: (a) attaching a first clamp member and a second clamp member to a fracture site using a handle, wherein the handle engages Pin member and a locking screw for selectively adjusting the clamping device for aligning a fracture bone in a stable position for reduction; (b) retaining the fracture bone in a first opening formed by a pair of arcuate members in the clamping device, the first opening having one or more oval-shaped bone gripping surfaces for securely holding the fractured bone for repositioning; (C)
    Mounting a panel over a U-shaped profile in a second opening formed by the arcuate members, the second opening including a substantially wide area for slidably sliding the panel for internal fixation without removing the apparatus during the surgical procedure.
    The fractured bone can be secured using the pair of bone gripping surfaces, wherein the bone gripping surface has one or more serrated elements to support the fractured bone in the stable position with a high coefficient of friction. In another embodiment of the method, a nut is slid on the set screw to adjust the clamp to align the fractured bone in the stable position during the surgical procedure.
    Other objects, features and advantages of the present invention will be apparent from the following detailed description. It should be understood, however, that the detailed description and specific examples, while indicating specific embodiments of the invention, are given by way of illustration only, as will become apparent to those skilled in the art that various changes and modifications within the spirit and scope of the invention will become apparent from this detailed description.
    Brief description of the drawings [0017]
    FIG. 1 shows a perspective view of a bone reshaping and internal bone fixation device according to an embodiment; FIG.
    FIG. 2 is a front view of a bone reshaping and internal bone fixation device according to one embodiment; FIG.
    Fig. 3 shows, according to one embodiment, a front view of the bone reshaping and internal bone fixation device which receives a 4.5-inch heavy plate;
    Fig. 4 shows, in one embodiment, the front view of the bone reshaping and internal bone fixation device which receives a 4.5-inch thin plate; and
    Fig. 5 shows, according to one embodiment, the front view of the bone reshaping and internal bone fixation device which receives a 3.5-inch plate.
    DETAILED DESCRIPTION Hereinafter, embodiments of the present invention will be described with reference to the drawings. It is expected that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The described embodiments are to be considered in all respects only as illustrative and not restrictive. The scope of the invention is, therefore, indicated not by the foregoing description but by the appended claims. All changes that come within the meaning and range of equivalency of the claims are intended to be encompassed by its scope.
    The present invention relates generally to a surgical device and, more particularly, to a clamping device used in a surgical orthopedic procedure to simultaneously perform the reduction and internal fixation of the fractured bone.
    According to one embodiment of the invention, as shown in Fig. 1, a perspective view of an apparatus 100 for bone resorption and internal bone fixation is disclosed. The bone reshaping and internal bone fixation device is a clamping device 100 used in a surgical orthopedic procedure to simultaneously perform the reduction and internal fixation without removing the device 100 from the fracture site.
    Referring to Figure 2, the clamping device 100 includes a first clamping member 102 and a second clamping member 104 having an upper portion 106, a middle portion 108, and a lower portion 110 to form a scissors-type construction. The first clamping element 102 and the second clamping element 104 are hinged together in the central portion 108 at a pivot point by means of a screw 112. The upper portion 106 of the first clamping member 102 and the second clamping member 104 is configured to include a pair of arcuate members to form a first aperture 114 for receiving and holding a fracture bone for reduction, and a second aperture 116 having a U - shaped profile to form a substantially wide area for receiving a plate for internal fixation. The angle between the first clamping member 102 and the second clamping member 104 in the apertures is directly proportional to the distance created to provide sufficient clearance for convenient passage of the plate for fixation at the fracture site. The first opening 114 is designed to have a width of 10 mm in order to securely hold the bones. This also allows the surgeon to place the plate under its direct visual control in the space provided.
    According to an embodiment as shown in Fig. 2, the lower portion 110 is a handle having a pin member 120 and a locking screw 122 for selectively adjusting the clamping device 100 to the fracture bone for simultaneously performing the reduction and the internal fixation of Plate, without removing the device 100 during the surgical procedure to align in a stable position. A nut 126 is slidable on the set screw 122 to adjust the clamp 100 to align the fractured bone in the stable position during the surgical procedure.
    In a further embodiment, the screw 112 in the central portion 108 is safe and strong to withstand the high force, since the clamping device 100 must grasp the fracture bone firmly to produce a tensile force that prevents slippage, especially in a debris fracture Reposition with combined clamps. In one method, the clamping members (102, 104) of the device 100 are implemented on each side of the fracture to produce the distraction force to achieve the reduction. In another method, the device 100 could be used by the surgeon to hold the fracture site in a simple fracture. When combining clamps in a debris fracture, the assistant holds the bone through two clamp members (102, 104) of the device 100 on each side of the fracture of unfractured bone and creates the tensile force to indirectly orient the fracture site. The surgeon then passes the plate to the fracture site with the clamping elements (102, 104) near the fracture site and the plate should be long enough to have at least 4 screws in unfractured bone on each side of the fracture. In order to achieve this tensile force for reduction, so the solid and secure clamping elements (102, 104) of the device 100 with handles and screws are required.
    In one embodiment, as shown in Fig. 2, the first opening 114 in the upper portion 106 of the first clamping member 102 and the second clamping member 104 has an oval configuration to adaptively receive the fracture bone for repositioning. This ergonomic oval outer shape adaptively accommodates the fracture bone for reduction. The first opening 114 includes a pair of bone gripping surfaces (124a, 124b) for receiving and holding the fractured bone, the first gripping surface 124a having a smooth layer and the second gripping surface 124b having one or more serrated elements. The serrated surface and smooth surface combination in the arcuate member first opening 114 is designed to provide sufficient friction to securely hold the fracture bone for reduction during surgery.
    In further embodiments of the present invention, as shown in Figure 2, the bone gripping surfaces (124a, 124b) include a coating to provide a high coefficient of friction for gripping the fractured bone during surgery. The bone gripping surfaces (124a, 124b) may be coated with a material that has a high coefficient of friction such that the roughened surface or material prepares the bone gripping surface (124a, 124b) to be highly resistant to movement, thereby causing the device 100 to move the injury site is secured in a fixed and secured position.
    One aspect of the present disclosure is directed to an open reduction and internal fixation clamp apparatus 100 in a surgical orthopedic procedure, as illustrated in FIG. The apparatus 100 includes a first clamping member 102 and a second clamping member 104 including an upper portion 106, a middle portion 108 and a lower portion 110 to form a scissors-type construction; wherein the first clamping element 102 and the second clamping element 104 are hinged together in the central portion 108 at a pivot point by means of a screw 112. The upper portion 106 of the first clamp member 102 and the second clamp member 104 may be configured to include a pair of arcuate members to form a first aperture 114 for receiving and holding a fracture fracture bone, and a second aperture 116 having a second aperture 116 U-shaped profile to form a substantially wide area for slidably receiving a plate for internal fixation. The open reduction and internal fixation clamping apparatus 100 in a surgical orthopedic procedure may be configured such that the lower portion 110 is a handle having a pin member 120 and a locking screw 122 for selectively adjusting the clamp 100 to simultaneously pass the fractured bone the reduction and internal fixation of the plate, without removing the device 100 during the surgical procedure to align in a stable position.
    The first opening 114 in the upper portion of the first clamping member 102 and the second clamping member 104 may be oval shaped to adaptively receive the fractured bone for reduction. The first opening 114 may include a pair of bone gripping surfaces (124a, 124b) for receiving and holding the fractured bone, the first gripping surface having a smooth surface and the second gripping surface having one or more serrated elements as shown in FIG. The serrated surface and smooth surface combination in the arcuate member first opening 114 may be configured to provide sufficient friction to securely hold the fractured bone for reduction during surgery.
    The bone gripping surface (124a, 124b) may include a coating to provide a high coefficient of friction for gripping the fractured bone during surgery. The wide area formed in the second opening by the U-shaped profile may be designed based on the dimensions of the normal common bone diameter and the width of the standard plate that is inserted for internal fixation during the surgical procedure. The clamp 100 may further include a nut 126 slidable on the set screw 122 to adjust the clamp 100 to align the fractured bone in the stable position during the surgical procedure. The clamping device 100 may be made of a stainless steel material for use in the surgical field.
    In one embodiment, as shown in Fig. 2, the pair of arcuate elements in the clamping device 100 generates the second opening 116 with the U-shaped profile, which in turn forms the wide area for receiving the plate for internal fixation provides. The surgeon could conveniently move the plate over this wide area when the bone reshaping clamp 100 is fixed to the fracture site. The wide area formed by the U-shaped profile in the second opening 116 is made larger than the width of the plate introduced for internal fixation during the surgical procedure. As a result, there is enough free space to push the plate into position without removing the clamping device 100. The plate for internal fixation in the fractured bone has several holes that allow the surgeon to insert screws to achieve reduction with stable alignment.
    The clamping device 100 is used in orthopedic surgery for the fixation of fractured bones of different sizes. Clamping device 100 is designed in three variants to perform the fixation of forearm, thigh, upper arm, tibia, adult and thigh bones.
    Fig. 3 shows a first variant of the clamping device 100 used in surgical orthopedic procedures. This clamping device 100 is designed for the reduction and fixation of larger bones 128, such as adult femur and tibia, which also include adult tibias and femurs. The fixation of this variant is carried out with the so-called heavy 4.5-inch plate 130, which has a width of 17 mm, as shown in Fig. 3. However, the plate 130 used for fixation is somewhat heavier compared to the second variant to ensure stability for adult bones that differ in size and rigidity from the pediatric bone. These variations of the clamping device 100 enable the surgeon to perform open reduction and internal fixation for all types of bone fragments as described with respect to bone type and plate size in reference books and orthopedic literature.
    The pin member 120 and the set screw 122 in the handle 110 can be adjusted so that the bone can be accurately aligned for repositioning with the clamp 100. However, the operating principle of the clamping device 100 is the same in all three variants. The construction is also developed using the same technique, but in three different sizes.
    In a further embodiment, as shown in Fig. 4, a second variant of the clamping device 100, which is used in surgical orthopedic surgery for the fixation of fractured bones, disclosed. This clamping device 100 is designed to perform reduction and fixation on medium bones 128, including the upper arm and thigh in paediatrics. The fixation of this variant is done with the so-called light 4.5-inch plate 130, which has a width of 13 mm, as shown in Fig. 4.
    In another embodiment, as shown in Fig. 5, the third variant of the clamping device 100 for the reduction and fixation of narrow bones 128, including the forearm and fibula, which is also referred to as "lateral", designed as in Fig. 5 is shown. The fixation of this variant is performed with the so-called 3.5-inch plate 130, which has a width of 10 mm. The wide area formed by the U-shaped profile is designed to adaptively receive the 3.5-inch plate 130 for fixation on the fractured bone.
    The size of the first variant of the clamping device 100 shown in Fig. 3 is designed for the heavy 4.5-inch plate 130, which allows the surgeon to insert the plate on the bone 128 with a minimum diameter of 26 mm. The size of the second variant of the clamping device 100 shown in Fig. 4 is designed for the 4.5-inch thin plate 130 and assists the surgeon to insert the plate on the bone 128 with a minimum diameter of 16 mm, the arm bone in of the normal population have an anatomical diameter of at least 18 mm. The size of the third variant shown in Fig. 5 is designed for the 3.5-inch plate 130 so that it is very easy for the surgeon to insert the plate on the bone 128 with a minimum diameter of 12 mm. The forearm and fibular bones have an anatomical diameter of at least 1 mm in the normal population.
    As shown in Fig. 3, the first variant of the clamping device 100 is adapted to perform the reduction and the internal fixation of the fractured bone 128 with the diameter D of 26 mm. The length of the plate 130 to be inserted is 17 mm and the width W of the plate is about 4.5 mm. The construction of the clamp 100 shows the diameter D of the fractured bone 128 which is engaged by the bone gripping surfaces (124a, 124b) of the first clamp member 102 and the second clamp member 104 as shown in FIG.
    In the second variant, as shown in Fig. 4, the diameter D of the fractured bone 128 is 16 mm and the length L of the inserted plate 130 is 13 mm. The width W of the plate 130 is about 3 mm. In a further variant, as shown in Fig. 5, the diameter D of the fractured bone 128 is 16 mm and the length L of the plate 130 to be inserted is 10 mm. The width W of the plate 130 is about 2 mm.
    This clearly shows the three variants of the clamping device 100 and its design for performing the reduction and internal fixation of fractured bones of different sizes. According to one embodiment of the proposed invention, the width of the bone gripping surfaces (124a, 124b) of the first clamping member 102 and the second clamping member 104 is designed to be 15 mm, resulting in a wide bone contact surface for two reasons: first, because of a high frictional force second, because it is wide enough to hold the fracture site.
    In further embodiments, as illustrated in FIG. 2, a method of using a clamp 100 for open reduction and internal fixation in orthopedic surgery is disclosed. The method comprises the steps of: a) attaching a first clip 102 and a second clip 104 at a fracture site using a handle 110, the handle 110 having a pin member 120 and a set screw 122 around the clip 100 for aligning a fracture bone b) holding the fracture bone in a first opening 114 formed by a pair of arcuate elements in the clamping device 100, the first opening 114 having one or more oval-shaped bone-engaging surfaces (124a, 124b) c) attaching a panel via a U-shaped profile in a second opening 116 formed by the arcuate members, the second opening 116 comprising a substantially wide area around the panel to shift to internal fixation, without removing the device 100 during the surgical procedure.
    2, the method further includes securing the fractured bone using the pair of bone grasping surfaces (124a, 124b), wherein the bone grasping surfaces (124a, 124b) are configured to have one or more serrated members to secure the fracture bone Support fracture bones with a high coefficient of friction in the stable position. During the surgical procedure, the nut 126 is slid on the set screw 122 to adjust the clamp 100 to align the fractured bone in the stable position. This allows the surgeon to keep the fracture site intact with the clamp 100. As discussed above, the device 100 could be used in two procedures to securely hold the bone at the fracture site. The screw 112 in the middle section 108 is very safe and strong to withstand the high force, as the clamp 100 must grasp the fracture bone firmly and create a tensile force to perform the repositioning - especially when combining clamps, if in one method in a debris fracture, the clamping members (102, 104) of the device 100 are used on each side of the fracture to produce a distraction force to achieve reduction. In another method, the device 100 could be used by the surgeon to hold the fracture site in a simple fracture.
    With this method, the surgeon can easily clamp the fractured bone using the device 100 and the plate easily passes through the second opening 116 created by the ergonomic shape of the arcuate elements in the device 100. The screws are inserted so that the plate is fixed in exact alignment with the fractured bone. The device 100 can be easily locked to hold the reduction.
    In exemplary embodiments, the inventive clamping device 100 is attached to the fracture site by the surgeon operating the device via the handle 110 and grasping the injured site of the fractured bone via the bone grasping surfaces (124a, 124b). As can be seen in FIG. 3, after the bones have been aligned by the operator, the clamping device 100 is fixed in the handle 110 via the pin element 120 and the locking screw 122. When the fracture is aligned and the clamping device 100 is secured, the surgeon moves the plate over the wide distance in the U-shaped profile formed by the second opening 116, as shown in Figure 2, for fixation at the injured site. The operator could then perform the drilling operation to insert suitable holes for the insertion of the screws in the fixation in the plate, so that the device 100 can achieve the accurate alignment of the fractured bone during surgery for reduction and fixation.
    According to a further embodiment, as shown in Fig. 2, the clamping device 100 is made of a stainless steel material for use in the surgery, which corresponds to the standards for medical devices. However, other materials could also be used to make the device without departing from the scope of the present invention. The material must be able to withstand autoclaving.
    [0044] In further embodiments, as illustrated in FIG. 2, the first clamping member 102 and the second clamping member 104 could also be secured together by any conventional method, such as by using adhesives, by welding, etc. However, in preferred embodiments, the first clamping member 102 and the second clamping member 104 are releasably secured together at the fulcrum using the screw 112, allowing free movement of the clamping members (102, 104) as the surgeon places the device 100 at the fracture site during the surgical procedure maneuvered.
    The clamping device 100 is designed to maintain the reduction of the fractured bone without altering the orientation of the bone at the fracture site. Once the reduction of the fractured bone is completed, the clamping device 100 allows the surgeon to push the plate through to perform the internal fixation simultaneously without removing the device 100. The increase in the distance between the first clamping element 102 and the second clamping element 104 provides sufficient space for convenient insertion of the plate at the fracture site with a fixed device. The three important design elements, such as the large distance between the clamping elements (102, 104), the U-shaped profile and the curvature diameter of the Knochenengreifflä surfaces (124 a, 124 b), which produce the smallest possible contact with the fractured bone, allow the device 100th to hold the bone tight and to provide enough space for the placement of the plate.
    The bone resorption and the internal fixation using this clamping device 100 could be carried out in a much shorter time without complications. Major limitations such as infections, blood loss, anesthesia complications due to prolonged operation time, drilling pressure and shear forces could be completely eliminated. The clamping device 100 proved to be very effective due to the shortening of the operation time. With this device 100, the provisional fixation and its complications are eliminated.
    In one embodiment, the clamping device 100 is designed in three different variants with different spacing between the first clamping element 102 and the second clamping element 104 to cover the normal range of conventional bone diameter and plate sizes. This affords the surgeon the advantage that he can select the device 100 based on the type of fractured bone and perform the surgical procedure in rapid succession. The structure of the components of the clamping device 100, the angle formed by the arcuate elements, and the distance between the first clamping element 102 and the second clamping element 104 to form the U-shaped opening 116 for accommodating the plate without obstruction, are the main advantages of this device 100 , which can be used very effectively in surgical orthopedic surgery. The serrated and smooth surfaces of the clamping device 100 also provide better rubbing for the fractured bone intended for reduction.
    The main difference between the conventional bone clips and the inventive clamping device 100 is that the large distance between the two openings (114, 116) is created, which is more than sufficient to accommodate the fractured bones and provided for fixation plate and to hold. The clamping device 100 is primarily used for internal bone reshaping and fixation operations. The clamping device 100 allows the surgeon to effectively hold the reduction effectively while providing clearance to bony cortex to easily position the plate for fixation. For this, it is not necessary that the device 100 is removed during the surgical procedure.
    The surgical procedure is accelerated and the operation time is considerably shortened. The device 100 eliminates any risk of infection due to the duration of surgery and reduces the likelihood of loss of anatomical reduction. In addition, the bleeding and the complications of anesthesia were reduced. The inventive clamping device 100 is very affordable and inexpensive and provides effective results in all types of surgical procedures for bone reshaping.
    Described is further a clamping device for open reduction and internal fixation in a surgical orthopedic procedure, comprising a first clamping member and a second clamping member comprising an upper portion, a central portion and a lower portion to form a scissors-like construction; wherein the first clamping element and the second clamping element are hinged together in the central portion at a pivot point by means of a screw.
    The apparatus may be configured such that the upper portion of the first clamping member and the second clamping member comprise a pair of arcuate members to form a first opening for receiving and holding a fracture bone for repositioning, and a second opening having a U - shaped profile to form a substantially wide area for receiving a plate for internal fixation. In this embodiment, the first opening may include a pair of bone gripping surfaces having one or more serrated elements to securely hold the fracture bone with a high coefficient of friction, and the wide area in the second opening is made larger than the width of the plate for internal fixation is introduced.
    In addition, the lower portion may be a handle having a pin member and a locking screw for selectively adjusting the clamping device to remove the fractured bone for simultaneously performing the reduction and internal fixation of the plate without disassembling the device during the surgical procedure to align in a stable position.
    Described is further a method of using a clamp device for open reduction and internal fixation in a surgical orthopedic procedure. The method includes attaching a first clamping member and a second clamping member to a fracture site using a handle, the handle having a pin member and a locking screw for selectively adjusting the clamping device 100 to align a fractured bone in a stable position for repositioning.
    The method further comprises holding the fractured bone in a first opening formed by a pair of arcuate members in the clamping device, the first opening having one or more oval-shaped bone-engaging surfaces to securely hold the fractured bone for repositioning.
    In addition, the method may include attaching a plate over a U-shaped profile in a second opening formed by the arcuate elements, the second opening comprising a substantially wide area for slidably sliding the plate for internal fixation, without removing the device during the surgical procedure. Securing the fracture bone may be accomplished using the pair of bone grasping surfaces, wherein the bone grasping surface includes one or more serrated elements to secure the fracture bone
    权利要求:
    Claims (7)
    [1]
    To support high coefficient of friction in the stable position. In one embodiment of the method, a nut is slid on the set screw to adjust the clamp to align the fractured bone in the stable position during the surgical procedure. The above description includes illustrative embodiments of the present invention. Having thus described exemplary embodiments of the present invention, those skilled in the art should appreciate that the disclosures herein are exemplary only and that various other alternatives, adaptations and modifications can be made within the scope of the present invention. Simply listing or numbering the steps of a method in a particular order does not limit the order of the steps of this method. [61] Many modifications and other embodiments of the invention will be apparent to one of ordinary skill in the art benefits in the preceding descriptions, conceivable. Although specific terms are used herein, they are used in a generic and descriptive sense only and not for the purpose of limitation. Accordingly, the present invention is not limited to the specific embodiments set forth herein. While the foregoing is a complete description of the preferred embodiments of the invention, various alternatives, modifications, and equivalents may be used. The foregoing description and examples are therefore not to be taken as limiting the scope of the invention, which is defined by the appended claims. claims
    An orthotic retainer for open reduction and internal fixation comprising: a first clamp member and a second clamp member including an upper portion, a middle portion and a lower portion to form a scissors-type construction; wherein the first clamping member and the second clamping member are hinged together in the central portion at a pivot point by means of a screw; wherein the upper portion of the first clamping member and the second clamping member is adapted to include a pair of arcuate members to form a first opening for receiving and holding a fracture bone for reduction and a second opening having a U-shaped profile to form a substantially wide area for slidably receiving a plate for internal fixation; and wherein the lower portion is a handle having a pin member and a locking screw for selectively adjusting the clamping device 100 to engage the fractured bone to simultaneously perform the reduction and internal fixation of the plate without removing the device 100 during the procedure stable position.
    [2]
    2. The clamping device of claim 1, wherein the first opening in the upper portion of the first clamping member and the second clamping member has an oval configuration to adaptively receive the fracture bone for repositioning.
    [3]
    3. A clamping device according to claim 1 or 2, wherein the first opening comprises a pair of bone gripping surfaces for receiving and holding the fracture bone, wherein a first gripping surface comprises one or more serrated elements, and a second gripping surface has a smooth layer.
    [4]
    4. The clamping device of claim 3, wherein the combination of the serrated surface and the smooth surface in the first opening of the arcuate elements is adapted to provide sufficient friction to securely hold the fracture bone for reduction during the procedure.
    [5]
    5. Clamping device according to one of the preceding claims, wherein the wide area formed by the U-shaped profile in the second opening is designed to be larger than the width of the inserted for the internal fixation during the procedure plate.
    [6]
    6. A clamping device according to any one of the preceding claims, further comprising a nut which is slidable on the locking screw to adjust the clamping device so that it aligns the fractured bone during the engagement in the stable position.
    [7]
    7. A clamping device according to any one of claims 1, 2, 4, 5 or 6, wherein the first opening comprises a pair of bone gripping surfaces having one or more serrated elements to securely hold the high friction coefficient fracture bone and the wide area in The second opening is designed to be larger than the width of the plate, which is introduced for internal fixation.
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    同族专利:
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    US20180168707A1|2018-06-21|
    CH713249A2|2018-06-29|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US2291413A|1941-06-13|1942-07-28|John R Siebrandt|Bone clamping and wire adjusting means|
    US5797919A|1996-07-16|1998-08-25|Brinson; Keith Anthony|Surgical bone clamp|
    GB0411487D0|2004-05-22|2004-06-23|Depuy Int Ltd|Surgical jig|WO2019074722A2|2017-10-10|2019-04-18|Miki Roberto Augusto|Universal orthopedic clamp|
    BR112020006499A2|2017-11-30|2020-09-29|DePuy Synthes Products, Inc.|bone fracture fixation claw with bone remodeling adaptability|
    CN109171941A|2018-08-27|2019-01-11|梁远|A kind of minimally invasive restorer of intertrochanteric fracture|
    CN109009396A|2018-09-03|2018-12-18|卢正波|One kind is intercondylar to reset thread a needle pincers and its application method|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    IR1395301178|2016-12-20|
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