CN118830908B - Long bone fracture reduction instrument - Google Patents
Long bone fracture reduction instrument Download PDFInfo
- Publication number
- CN118830908B CN118830908B CN202411321461.9A CN202411321461A CN118830908B CN 118830908 B CN118830908 B CN 118830908B CN 202411321461 A CN202411321461 A CN 202411321461A CN 118830908 B CN118830908 B CN 118830908B
- Authority
- CN
- China
- Prior art keywords
- nail
- reset
- hole
- positioning plate
- long bone
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/8866—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices for gripping or pushing bones, e.g. approximators
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B34/00—Computer-aided surgery; Manipulators or robots specially adapted for use in surgery
- A61B34/20—Surgical navigation systems; Devices for tracking or guiding surgical instruments, e.g. for frameless stereotaxis
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B34/00—Computer-aided surgery; Manipulators or robots specially adapted for use in surgery
- A61B34/20—Surgical navigation systems; Devices for tracking or guiding surgical instruments, e.g. for frameless stereotaxis
- A61B2034/2046—Tracking techniques
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B34/00—Computer-aided surgery; Manipulators or robots specially adapted for use in surgery
- A61B34/20—Surgical navigation systems; Devices for tracking or guiding surgical instruments, e.g. for frameless stereotaxis
- A61B2034/2072—Reference field transducer attached to an instrument or patient
Landscapes
- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Medical Informatics (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Robotics (AREA)
- Surgical Instruments (AREA)
Abstract
The invention discloses a long bone fracture reduction apparatus, which belongs to the technical field of medical apparatuses and comprises a reduction nail, an anti-rotation nail, a positioning plate and an operating handle, wherein the reduction nail is provided with an operating part, the positioning plate is provided with a reduction nail through hole and an anti-rotation nail through hole, the anti-rotation nail through hole is arranged by taking the reduction nail through hole as the center, the reduction nail penetrates through the positioning plate through the reduction nail through hole, the positioning plate and the reduction nail are separated and fixed on the reduction nail, the anti-rotation nail penetrates through the positioning plate through the anti-rotation nail through hole, the operating handle is detachably connected with the operating part, and the operating handle is abutted against one side of the positioning plate facing the operating part. The long bone fracture reduction instrument has the advantages of simple installation mode, simple assembly structure, no switching in the whole device, arbitrary movement and adjustment of an operator, arbitrary operation according to the condition of a fracture end, high flexibility and better reduction of the fracture end.
Description
Technical Field
The invention belongs to the technical field of medical appliances, and particularly relates to a long bone fracture reduction appliance.
Background
The long bones are mainly present in limbs and are long tubular bones, two ends are called bone ends, the main part between the two ends is diaphysis, and the diaphysis is hollow and is tubular, so the long bones are also called tubular bones. Distributed on arms, legs, palms, feet, fingers and toes, mainly comprising humerus, ulna, radius, metacarpal bone, phalanges of upper limbs, and femur, tibia, fibula, metatarsal bone, phalanges of lower limbs. The long bone is an important component of the movement system, can stabilize and support the body, maintain the movement of limbs, store calcium, phosphorus and the like, and meanwhile, the marrow cavity of the long bone contains bone marrow and has the hematopoiesis function.
Long bone fractures can be due to trauma and skeletal disease, the former being the most common in clinic. When the long bone is damaged, the physiological function of the long bone can be affected, and the symptoms such as pain, swelling, abnormal movement, abnormal gait and the like can be generated.
1. The long bone fracture caused by trauma is mainly caused by 2 reasons (1) direct violence, namely, fracture of a certain part of a bone is caused by direct action of violence, which is often accompanied by soft tissue damage of different degrees, such as fracture of a femoral shaft caused by rolling of wheels in car accidents, and (2) fracture of a tibia and fibula caused by axial conduction of high energy when the part far from external force is caused by longitudinal conduction, torsion or leverage during indirect violence, such as high-position falling.
2. Bone diseases are the causative factors of fracture, and bone destruction is often caused by osteomyelitis, bone tumor, osteoporosis and the like, so that the capability of the bone for resisting external force is reduced, and the fracture can occur after slight external force is applied, and the fracture is also called pathological fracture.
If the broken ends of the fracture are healed well, the original supporting, protecting and moving functions of the broken ends are restored, the broken ends of the fracture are firstly butted, and the normal position or anatomical relation, namely fracture reduction, is restored, wherein the most critical is the accurate alignment of the broken ends.
Disclosure of Invention
In clinical operation, the bone nails are inserted into fractured bones, then the fractured bones are indirectly moved by moving the bone nails, so that the fractured bones at two sides are aligned, but the bone nails can automatically rotate in the fractured bones in the operation process, so that the bone nails can not effectively drive the fractured bones to move in the operation process, the problem is more obvious especially in micro-movement, and the effect of fracture reduction is greatly affected.
A long bone fracture reduction instrument, comprising:
A reset pin having an operating portion;
anti-rotation nails;
The locating plate is provided with a reset nail through hole and an anti-rotation nail through hole, the anti-rotation nail through holes are arranged with the reset nail through hole as the center, the reset nail passes through the locating plate through the reset nail through hole, the locating plate is separated from the reset nail and fixed on the reset nail, and the anti-rotation nail passes through the locating plate through the anti-rotation nail through hole.
In order to prevent the reset nail from rotating, the reset nail through hole of the positioning plate is aligned with the operation part of the reset nail, the positioning plate is far away from the operation part along the axis of the reset nail and then fixed on the reset nail, then the anti-rotation nail is inserted into the bone through the anti-rotation nail through hole, the reset nail and the anti-rotation nail are both inserted into the bone and are not on the same axis, so that the reset nail can be prevented from rotating, and an operator holds the operation handle to move the broken bone to align the broken bones at two ends when the operation part is used.
Further, the nail that resets includes operating portion, portion that resets and spacing portion, spacing portion is located between operating portion and the portion that resets, operating portion is polygon cylinder, the portion that resets is cylindric cylinder, spacing portion is the boss, and the external diameter of boss is greater than the external diameter of operating portion, the boss is used for supporting the locating plate. When the device is assembled, the operation part of the reset nail passes through the reset nail through hole of the positioning plate, the positioning plate falls on the boss, the positioning plate is supported by the boss, the positioning plate is positioned between the operation handle and the boss, and when the device is used, the reset part is pricked into broken bones, and the reset nail and the anti-rotation nail are moved through the operation handle, so that the broken bones are driven to move.
Further, the reset portion of the reset nail is provided with a depth limiting thread, the depth limiting thread is located on the opposite side of the operation portion, and the length of the depth limiting thread is L which is smaller than or equal to 1.0cm. The depth limiting screw thread of the reset nail is driven into the bone, the length of the screw thread is limited, the reset nail can be prevented from being driven into the bone to too deep position, and complications are avoided.
Further, the through hole of the reset nail is a polygonal hole, the size of the through hole of the reset nail is matched with the size of the operation part, and the shape of the through hole of the reset nail is the same as the shape of the operation part of the polygonal column body. The polygonal column body passes through the polygonal hole, and relative rotation can not occur between the locating plate and the reset nail.
Further, the reset pin through holes are positioned in the center of the positioning plate, and the anti-rotation pin through holes are uniformly distributed with the reset pin through holes as the center. When the operation handle is used, the reset nail penetrates through the reset nail through hole, one end, far away from the operation part, of the reset nail is inserted into the broken bone, the anti-rotation nail penetrates through the anti-rotation nail through hole and is inserted into the broken bone, the anti-rotation nail plays a role in preventing the reset nail from rotating, and the reset nail does not move due to rotation when the operation handle moves, so that the broken bone fails to move.
Further, a plurality of anti-rotation nail through holes are formed. When in use, the anti-rotation nail through holes with proper positions are selected according to the fracture condition so as to insert the anti-rotation nails.
Further, the positioning plate is a plate having a shape of both a long axis and a short axis. In the use state, the long axis of the locating plate is parallel to the axis of the long bone, so that the positions of the reduction nails and the anti-rotation nails which are driven into the bone can be found conveniently.
Further, the locating plate includes limit structure, limit structure set up in the locating plate towards one side of operating portion, limit structure is the card strip, the card strip uses the nail through-hole that resets as central evenly distributed, operating handle with card strip butt.
Further, the main body of the clamping strip is of a semi-cylindrical structure, and the arched surface of the clamping strip faces the operation part.
Further, the operating handle comprises a chuck abutted with the clamping strip, the chuck is provided with a groove matched with the clamping strip, and the groove is meshed with the clamping strip. The chuck of the operating handle is meshed with the clamping strip of the positioning plate, so that the operating handle and the positioning plate cannot rotate relatively, and can move in a consistent manner.
Further, the operating handle comprises a locking screw, the operating part of the reset screw is provided with a threaded cavity, and the locking screw is in threaded connection with the threaded cavity. When the locking screw is used, the locking screw is screwed into the threaded cavity, so that the operating handle is fixedly connected with the reset screw, and the operating handle and the reset screw can synchronously move.
Further, the device also comprises a navigation reference frame, wherein the navigation reference frame is detachably connected with the operation handle.
Alternatively, the device further comprises a navigation reference frame, wherein the navigation reference frame is detachably connected with the positioning plate.
The invention has the beneficial effects that:
(1) The anti-rotation nail prevents the reset nail from rotating in the bone, so that the reset nail is prevented from rotating but not moving when moving the reset nail, and effective movement of broken bone is ensured.
(2) The nail through-hole that resets of locating plate is the polygon hole, and the locating plate cover is at the operating portion of nail that resets, and operating portion is polygon cylinder, so, can not take place relative rotation between locating plate and the operating portion, and the nail that resets removes then the locating plate takes place synchronous movement.
(3) The operation handle and the positioning plate are limited, so that the operation handle and the positioning plate do not rotate relatively, and the operation handle moves to drive the reset nail, the positioning plate and the anti-rotation nail to move, thereby driving the broken bone to move.
(4) The navigation reference frame can calibrate the position of the reset nail in real time, and an operator can see the moving distance, angle and direction of the reset nail in real time through the display part, so that broken bones at two ends can be accurately butted, and the reset effect is improved.
(5) The long bone fracture reduction instrument has the advantages of simple installation mode, simple assembly structure, no switching in the whole device, arbitrary movement and adjustment of an operator, arbitrary operation according to the condition of a fracture end, high flexibility and better reduction of the fracture end.
(5) The two broken bones are respectively provided with a long bone fracture reduction instrument, an operator holds two operating handles by hand, the broken bones at the two ends are aligned by operation, after the long bone fracture reduction instruments at the two sides are locked by a connecting mechanism, the broken bone positions at the two ends are locked, and after the hands of the operator are released, other operations can be performed.
Drawings
FIG. 1 is a schematic view of the overall construction of a long bone fracture reduction apparatus embodying the present invention;
FIG. 2 is a schematic view of a reduction pin, anti-rotation pin, passing through a locating plate, of a long bone fracture reduction instrument embodying the present invention;
FIG. 3 is a schematic view of a reduction pin for a long bone fracture reduction instrument embodying the present invention;
FIG. 4 is a schematic view of a positioning plate for a long bone fracture reduction device embodying the present invention;
FIG. 5 is a schematic illustration of the snap engagement of the chuck of the operating handle and the locking plate of the long bone fracture reduction device of the present invention;
FIG. 6 is a schematic view of the operating handle of a long bone fracture reduction device embodying the present invention;
FIG. 7 is a schematic view of a cannula, locking screw, of an operating handle of a long bone fracture reduction instrument embodying the present invention;
FIG. 8 is a schematic cross-sectional view of an operating handle of a long bone fracture reduction device embodying the present invention;
FIG. 9 is a schematic view of the overall structure of a long bone fracture reduction device embodying the present invention with a navigational reference frame mounted thereto;
FIG. 10 is a schematic overall construction of another embodiment of a long bone fracture reduction device embodying the present invention with a navigational reference frame mounted thereto;
in the figure, 1, a reset nail, 101, an operation part, 102, a limit part, 103, a reset part, 104, a thread cavity, 105, a depth-limiting thread, 2, an anti-rotation nail, 3, a locating plate, 301, a reset nail through hole, 302, an anti-rotation nail through hole, 303, a clamping strip, 4, an operation handle, 401, a shell, 402, a sleeve, 403, a chuck, 404, a locking screw, 405, a handle, 5, a navigation reference frame, 501, a connecting rod, 502 and a connecting piece.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. The invention may be embodied or practiced in other different specific embodiments and features from the following examples and examples may be combined with one another without departing from the spirit or scope of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "first," "second," "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying any particular order of magnitude in which the features are indicated. Thus, a feature defining "a first", "a second", "a first", "a second" may include one or more such features, either explicitly or implicitly.
1-10, A long bone fracture reduction apparatus comprises a reduction nail 1, an anti-rotation nail 2, a positioning plate 3 and an operation handle 4, wherein the reduction nail 1 is provided with an operation part; the positioning plate 3 is provided with a reset pin through hole 301 and an anti-rotation pin through hole 302, and the anti-rotation pin through holes 302 are distributed by taking the reset pin through hole 301 as the center; the reset nail 1 passes through the positioning plate 3 through the reset nail through hole 301, and the positioning plate 3 is separated from the reset nail 1 and fixed on the reset nail 1; the anti-rotation nail 2 passes through the locating plate 3 through the anti-rotation nail through hole 302, the operating handle 4 is detachably connected with the operating part, the operating handle 4 is abutted against one side of the locating plate 3 facing the operating part, two groups of the reset nail 1 and the anti-rotation nail 2 are respectively inserted into two long bones of a fracture to determine the positions of the two long bones, one group of the reset nail 1 and the anti-rotation nail 2 pull one long bone along a reset path, particularly, referring to fig. 2, the two groups of the reset nail 1 and the anti-rotation nail 2 are respectively inserted into two broken bones of the long bone of the fracture, wherein the reset nail 1 is used as a fixed reference, the central axes of the anti-rotation nail 2 and the reset nail 1 are not positioned at the same longitudinal axis, the reset nail 1 can not rotate relative to the bone, after the positions of the reset nail 1 and the anti-rotation nail 2 are determined, one broken bone is kept stationary, the reset nail 1 and the anti-rotation nail 2 pull the other broken bone, as the degrees of freedom of the reset nail 1 and the bone are completely limited, the reset nail 1 can drive the bone to conduct angle adjustment along the reset path and the two broken bones until the two broken bones are coincident three-dimensional images are obtained when the two broken bones are reconstructed, the reset path of the other three-dimensional skeleton which is reset by adjusting the angle and the distance is a reset planning path, or the reset path of the two three-dimensional skeleton which is reset after the angle and the distance are respectively adjusted is a reset planning path.
Referring to fig. 2, in this embodiment, both the reset nail 1 and the anti-rotation nail 2 are inserted into the fractured bone, when in use, the anti-rotation nail 2 is inserted into the fractured bone through the anti-rotation nail through hole 302, and the anti-rotation nail through hole 302 is distributed with the reset nail through hole 301 as the center, so that the central axes of the anti-rotation nail through hole 302 and the reset nail through hole 301 are not on the same longitudinal axis, the reset nail 1 and the anti-rotation nail 2 are not on the same axis, the multi-point positioning of the reset nail 1 and the anti-rotation nail 2 inserted into the fractured bone is realized, the reset nail 1 is prevented from rotating, an operator can drive the reset nail 1 to move instead of driving the reset nail 1 to rotate when applying force to the reset nail 1, and the reset nail 1 can drive the fractured bone to move for resetting. Because locating plate 3 is fixed on nail 1 resets, consequently locating plate 3 and nail 1 can take place synchronous motion and can not take place relative rotation, operating handle 4 can dismantle with the operating portion of nail 1 resets and be connected, operating handle 4 is connected with nail 1 resets when using for operating handle 4 and nail 1 resets can synchronous movement, and operating handle 4 and locating plate 3 butt have realized not taking place relative rotation between nail 1 resets and the locating plate 3, do not take place relative rotation between operating handle 4 and the locating plate 3, have guaranteed the synchronous movement between operating handle 4, nail 1 resets, the locating plate 3 three.
Referring to fig. 2 and 3, in the embodiment of the present application, the nail 1 includes an operation portion 101, a reset portion 103 and a limiting portion 102, the operation portion 101 is used for being operated by an operator, the reset portion 103 is used for being inserted into a fractured bone, the limiting portion 102 is used for limiting a position of the positioning plate 3, specifically, the operation portion 101 is located at one end close to the operation portion, the reset portion 103 is located at one end far away from the operation portion, the limiting portion 102 is located between the operation portion 101 and the reset portion 103, the operation portion 101, the reset portion 103 and the limiting portion 102 are continuous and uninterrupted, more specifically, the operation portion 101 is in a polygonal column structure, the nail through hole 301 of the positioning plate 3 is a polygonal hole, the nail through hole 301 allows the operation portion 101 of the nail 1 to pass through, and the polygonal column structure and the polygonal hole are designed to avoid relative rotation between the positioning plate 3 and the nail 1. When the positioning device is used, the reset pin through holes 301 of the positioning plate 3 are aligned with the operation part of the operation part 101, the positioning plate 3 is driven to move in the direction away from the operation part, in the moving process, the positioning plate 3 is blocked by the limiting part 102, and then the position of the positioning plate 3 is limited by the limiting part 102.
The reset portion 103 has a cylindrical structure, and in the process of beating the reset portion 103 into bone, surrounding tissues cannot be scratched because the reset portion has no edges and corners. The end of the resetting portion 103 remote from the operating portion, i.e. the end which is inserted into the fractured bone in use, has a depth limiting thread 105, the length of the depth limiting thread 105 being L, l+.1.0 cm. In use, the end of the nail 1 having the depth limiting thread 105 is driven into the fractured bone, and the length of the depth limiting thread 105 is limited in this embodiment, so as to limit the depth of the nail 1 driven into the fractured bone, so as to prevent complications caused by the too deep driving of the nail 1 into the fractured bone or influence the treatment of the subsequent intramedullary nail, because the intramedullary nail is placed in the intramedullary cavity, the nail 1 is driven too deep into the intramedullary cavity, so that the position of the intramedullary nail is occupied, and the implantation and related treatment operations of the intramedullary nail can be influenced.
The limiting part 102 is a boss with an outer diameter larger than that of the operating part 101, the boss is of a columnar structure or a plate-shaped structure, and the boss is used for supporting the positioning plate 3, so that the positioning plate 3 is positioned on the reset nail 1. In some embodiments, the limiting portion 102 has a stepped structure with a gradually decreasing outer diameter, the outer diameter of a portion of the limiting portion 102, which is close to the operation portion of the reset nail 1, is larger, the outer diameter of a portion, which is far away from the operation portion of the reset nail 1, is smaller, and the outer diameter of the limiting portion 102 has a transition from large to small, so that the bearing capacity of the limiting portion 102 is stronger, and the force applied by an operator is enough to bear in the operation process.
In the embodiment of the application, the operation part of the reset nail 1 is provided with a threaded cavity 104 with one end open, the opening of the threaded cavity 104 faces away from the locating plate 3, the operation handle 4 comprises a locking screw 404, the locking screw 404 is screwed into the threaded cavity 104, and the locking screw 404 and the reset nail 1 are in threaded connection through the threaded cavity 104, so that the reset nail 1 and the operation handle 4 are combined and connected into a whole capable of synchronously moving. During assembly, the locking screw 404 is screwed into the threaded cavity 104, the locking screw 404 is screwed to enable the operating handle 4 to be connected with the reduction nail 1, and an operator holds the operating handle 405 to move so that the reduction nail 1 moves synchronously, thereby driving broken bones to move and realizing reduction of the broken bones. In some embodiments, the locking screw 404 has a handle 405, the handle 405 facilitating the operator to rotate the locking screw 404. Specifically, the handle 405 is a butterfly handle 405, and the butterfly handle 405 is more labor-saving when the locking screw 404 is tightened.
Referring to fig. 4, in the embodiment of the present application, the positioning plate 3 is a plate having a shape with both a long axis and a short axis, specifically, the positioning plate 3 is a rectangular plate or an oval plate, preferably, the positioning plate 3 is an integrated structure of combining fan-shaped plates at both ends of the rectangular plate, the fan-shaped plates are formed on both sides of the rectangular plate, and the fan-shaped plates and the rectangular plate are integrally formed, so that the integrated structure is solid and can bear the force applied during the operation without breaking. The center of the reset nail through hole 301 is located at the middle point of the long axis of the positioning plate 3, the anti-rotation nail through holes 302 are distributed on the positioning plate 3 by taking the reset nail through hole 301 as the center, specifically, the reset nail through hole 301 is located at the center of the rectangular plate, the anti-rotation nail through holes 302 are distributed along the arc line of the sector blocks, and the anti-rotation nail through holes 302 are arranged on the sector blocks on two sides. When the anti-rotation nail driving device is used, the long axis of the positioning plate 3 is parallel to the long axis of a long bone, so that the positions of the reduction nail 1 and the anti-rotation nail 2 are found, the reduction nail 1 is driven into a target position of the broken bone, then the reduction nail through hole 301 of the positioning plate 3 is aligned with an operation point of the reduction nail 1, the positioning plate 3 moves along the reduction nail 1 in a direction away from the operation part, the positioning plate 3 is blocked by the limiting part 102 so as to be positioned on the reduction nail 1, the anti-rotation nail through hole 302 with a proper position is found, then the anti-rotation nail 2 passes through the anti-rotation nail through hole 302 to drive the anti-rotation nail 2 into the broken bone, one end of the anti-rotation nail 2 is driven into the broken bone, the other end of the anti-rotation nail 2 is blocked by one surface of the positioning plate 3 facing the operation part, the positioning plate 3 restrains the position of the anti-rotation nail 2, and in actual operation, at least one anti-rotation nail 2 is inserted into the broken bone, and more anti-rotation nails 2 are required to be driven into a patient with open fracture. The anti-rotation nail 2 in this embodiment is a k-wire or a s-wire or a bone nail.
In other embodiments of the present application, the anti-rotation nail through holes 302 are uniformly distributed from the center to two ends along the long axis of the positioning plate 3 with the reset nail through holes 301 as the center, specifically, the center of the reset nail through holes 301 is located at the midpoint of the long axis, the anti-rotation nail through holes 302 are arranged layer by layer with the reset nail through holes 301 as the center, and the number of each layer of anti-rotation nail through holes 302 is the same or increases layer by layer. In use, the proper distance and proper position of the anti-rotation nail through holes 302 are selected, and the anti-rotation nail 2 is inserted into the broken bone through the anti-rotation nail through holes 302.
Referring to fig. 4 and 5, in an embodiment of the present application, the positioning plate 3 includes a stopper structure for defining the position of the operating handle 4. The limit structure is arranged on one side of the locating plate 3 facing the operation part, and is connected with the locating plate 3, specifically, the limit structure is a clamping strip 303, the clamping strip 303 is integrally connected or fixedly connected with the locating plate 3, and the clamping strips 303 are uniformly distributed by taking the reset pin through holes 301 as the center. Preferably, the clamping strips 303 are of a semi-cylindrical structure, the cross section area of the clamping strips 303 is semi-circular, the clamping strips 303 are symmetrically distributed along the long axis of the positioning plate 3, or the clamping strips 303 are symmetrically distributed along the short axis of the positioning plate 3, and the arched surface of the clamping strips 303 faces the operation part so as to be convenient for the operation handle 4 to abut.
Referring to fig. 5-7, in the embodiment of the present application, the operating handle 4 includes a chuck 403 abutting against the clamping strip 303, the chuck 403 has a groove matching with the clamping strip 303, the groove engages the clamping strip 303, specifically, the chuck 403 has a disc-shaped structure, the groove of the chuck 403 is opened towards the clamping strip 303, the groove of the chuck 403 is fastened on the clamping strip 303 so that the groove engages the clamping strip 303, and then a locking screw 404 of the operating handle 4 is screwed into a threaded cavity 104 of the reset nail 1, so that the operating handle 4 is relatively fixed with the reset nail 1, and meanwhile, the chuck 403 of the operating handle 4 abuts against the clamping strip 303 of the positioning plate 3, so that the fixing among the operating handle 4, the reset nail 1 and the positioning plate 3 is realized, and the relative rotation among the three is not generated, thereby achieving the purpose of moving broken bones through the operating handle 4.
In other embodiments of the present application, the clamping strips 303 are circumferentially arranged around the through hole 301 for the reset pin (not shown in the drawing) along the edge line of the through hole 301 for the reset pin, the clamping strips 303 form a toothed surface on the side of the positioning plate 3 facing the operation part, the grooves of the chuck 403 are circumferentially arranged, the grooves are matched with the shape and size of the clamping strips 303, and the grooves engage with the clamping strips 303, so that the operation handle 4 is meshed with the positioning plate 3.
Referring to fig. 6, 7 and 8, in particular, the operating handle 4 includes a sleeve 402, the sleeve 402 is connected with a side of the chuck 403 facing the operating portion, the sleeve 402 has a first opening near the operating portion and a second opening facing the orientation plate, the operating portion of the reset screw 1 enters the interior of the sleeve 402 through the second opening, the operating portion of the reset screw 1 is located between the first opening and the second opening, a locking screw 404 enters the threaded cavity 104 of the reset screw 1 through the first opening, and the locking screw 404 is tightened so that the reset screw 1 is connected with the locking screw 404 while the operating handle 4 is pressed against the orientation plate 3.
In other embodiments of the present application, the inner diameter of the sleeve 402 is polygonal, the tube hole of the sleeve 402 is a polygonal hole, the inner diameter of the sleeve 402 is matched with the operation portion 101 of the reset nail 1, the sleeve 402 is sleeved outside the operation portion 101 of the reset nail 1, the operation portion 101 of the reset nail 1 is in a polygonal column structure, the sleeve 402 is a polygonal hole, and no relative rotation occurs between the sleeve 402 and the operation portion 101 of the reset nail 1.
The operating handle 4 further comprises a shell 401, the shell 401 is sleeved outside the sleeve 402, the shell 401 is connected with the sleeve 402, the outer diameter of the shell 401 is gradually reduced from the middle to the two ends, the operating handle is convenient for an operator to hold, and when the operating handle is used, the operating handle is good in operating handle, so that the operator can accurately move broken bones.
Referring to fig. 9 and 10, in the embodiment of the present application, a navigation reference frame 5 is further included, the navigation reference frame 5 is detachably connected to the operation handle 4, specifically, the operation handle 4 includes a connection rod 501, the connection rod 501 is detachably connected to the navigation reference frame 5, and the connection rod 501 is a cylindrical rod.
In other embodiments of the present application, the navigation reference frame 5 is detachably connected to the positioning plate 3, specifically, the positioning plate 3 includes a connecting member 502, the connecting member 502 is detachably connected to the navigation reference frame 5, and the connecting member 502 is a cylindrical rod. In this embodiment, the positioning plate 3 has an extension plate, the connecting piece 502 is located on the extension plate, and the connecting piece 502 is connected with the extension plate, so as to avoid the influence of the occupied space of the navigation reference frame 5 on the penetration of the anti-rotation nail 2 through the anti-rotation nail through hole 302.
Through navigation reference frame 5, can mark the position of nail 1 that resets, anti-nail 2 in real time, the operator can see the position, the distance of removal, angle, the direction that reset nail 1, anti-nail 2 are located at present through the display, guarantees the accurate reduction of broken bone.
The embodiment of the invention provides a method for reducing long bone fracture, which is based on the long bone fracture reduction instrument for reducing fracture, and comprises the following steps:
s1, placing two groups of reset nails 1 and anti-rotation nails 2 in two long bones of a fracture through a positioning plate to obtain two long bones with the reset nails 1 and the anti-rotation nails 2;
s2, performing angle adjustment and distance adjustment on the two sections of long bones with the reset nail 1 and the anti-rotation nail 2 through a reset path to obtain a reset long bone.
In one embodiment, the angle adjustment and distance adjustment of two groups of two long bones with the reset nail 1 and the anti-rotation nail 2 comprises the steps of firstly adjusting the angle and then adjusting the distance for resetting, and firstly adjusting the distance and then adjusting the angle for resetting.
In one embodiment, the S2 step of fracture reduction based on the long bone fracture reduction instrument is replaced with:
The long bone with the reduction nail 1 and the anti-rotation nail 2 at one end is fixed without change, and the angle adjustment and the distance adjustment are carried out on the long bone fracture with the reduction nail 1 and the anti-rotation nail 2 at the other end through the reduction path adjustment, so as to obtain the reduced long bone.
In one embodiment, the reduction path is a pre-operation planning path, and the pre-operation planning path is a reduction path obtained by performing reduction simulation on a long bone three-dimensional model, wherein the long bone three-dimensional model is a three-dimensional model reconstructed based on fracture images of a patient, and the reduction path comprises angle parameters of bone rotation and displacement parameters of the bone.
The embodiment of the invention provides a long bone fracture reduction device, which is used for reducing fracture based on the long bone fracture reduction device and realizing a long bone fracture reduction method, and comprises the following specific steps:
s1, placing two groups of reset nails 1 and anti-rotation nails 2 in two long bones of a fracture through a positioning plate to obtain two long bones with the reset nails 1 and the anti-rotation nails 2;
s2, performing angle adjustment and distance adjustment on the two sections of long bones with the reset nail 1 and the anti-rotation nail 2 through a reset path to obtain a reset long bone.
In one embodiment, the long bone fracture reduction device comprises an optical tracking navigation system, a driving part and the long bone fracture reduction device, wherein the optical tracking navigation system comprises a display part, the display part is used for displaying intraoperative images in real time, the intraoperative images are based on the optical tracking navigation system to identify a navigation reference frame on the long bone fracture reduction device and display the position and the pose of the intraoperative long bone in real time, two sections of the long bone are respectively inserted into the long bone fracture reduction device with the navigation reference frame, and the driving part drives the two sections of long bone bones to conduct angle adjustment and distance adjustment based on the position and the pose of the intraoperative long bone. In a more specific embodiment, the driving part is connected with a long bone fracture reduction device, drives the long bone fracture reduction device to drive two long bones to conduct angle adjustment and distance adjustment based on the position of the long bone in operation, or is connected with legs at two sides of a broken bone of a patient, and drives the legs at two sides of the broken bone of the patient to conduct angle adjustment and distance adjustment based on the position of the long bone in operation.
In one embodiment, the long bone fracture reduction device comprises an optical tracking navigation system, a driving part and the long bone fracture reduction apparatus, wherein the optical tracking navigation system comprises a display part, the display part is used for receiving and displaying a pre-operation planning path and displaying an intra-operation image in real time, the pre-operation planning path is reconstructed based on a patient fracture image to obtain a three-dimensional model, the reduction path comprises angle parameters of bone rotation and displacement parameters of bones, the intra-operation image is used for identifying a navigation reference frame on the long bone fracture reduction apparatus based on the optical tracking navigation system and displaying the position of the intra-operation long bone in real time, two sections of long bone fracture reduction apparatus with the navigation reference frame are respectively inserted into the long bone fracture reduction apparatus, and the driving part drives two sections of long bone bones to conduct angle adjustment and distance adjustment according to the reduction path based on the position of the intra-operation long bone fracture. In a more specific embodiment, the optical tracking navigation system is an NDI infrared optical tracking system, and the driving part may be a surgical robot with a positioning part and a tracker as disclosed in the surgical robot under the application number CN 202310308806.6.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present invention, and are not intended to limit the invention, and that various changes and modifications may be made therein without departing from the spirit and scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411321461.9A CN118830908B (en) | 2024-09-23 | 2024-09-23 | Long bone fracture reduction instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411321461.9A CN118830908B (en) | 2024-09-23 | 2024-09-23 | Long bone fracture reduction instrument |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN118830908A CN118830908A (en) | 2024-10-25 |
| CN118830908B true CN118830908B (en) | 2024-12-06 |
Family
ID=93142965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202411321461.9A Active CN118830908B (en) | 2024-09-23 | 2024-09-23 | Long bone fracture reduction instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN118830908B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113100901A (en) * | 2021-04-14 | 2021-07-13 | 中南大学湘雅医院 | broken bone reducer |
| CN116849809A (en) * | 2023-08-11 | 2023-10-10 | 北京维卓致远医疗科技发展有限责任公司 | Navigation suite for fracture navigation system |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204072280U (en) * | 2014-07-17 | 2015-01-07 | 王松 | A kind of screw-type pedicle Vertebral graft auxiliary device |
| CN204293244U (en) * | 2014-11-27 | 2015-04-29 | 河南省洛阳正骨医院河南省骨科医院 | A kind of Combined medical formula fixation support for reduction of fracture |
| CN204274603U (en) * | 2014-12-02 | 2015-04-22 | 超微（上海）医院投资管理有限公司 | One struts fixing reductor temporarily |
| GR1009366B (en) * | 2017-06-21 | 2018-09-21 | Δημητριος Αντωνιου Πλακας | Intramedullary cannulated guide for bone fracture reduction via endoscopic camera |
| CN213345914U (en) * | 2020-05-29 | 2021-06-04 | 漯河医学高等专科学校第二附属医院 | Closed distraction reduction device for fracture of limbs and bone |
| CN117100376B (en) * | 2023-10-11 | 2024-05-07 | 陕西聚仁谷医疗器械有限公司 | Fracture minimally invasive reduction fixing system |
-
2024
- 2024-09-23 CN CN202411321461.9A patent/CN118830908B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113100901A (en) * | 2021-04-14 | 2021-07-13 | 中南大学湘雅医院 | broken bone reducer |
| CN116849809A (en) * | 2023-08-11 | 2023-10-10 | 北京维卓致远医疗科技发展有限责任公司 | Navigation suite for fracture navigation system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN118830908A (en) | 2024-10-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Whatling et al. | Literature review of current techniques for the insertion of distal screws into intramedullary locking nails | |
| Gosling et al. | Robot-assisted fracture reduction: A preliminary study in the femur shaft | |
| Seenappa et al. | Management of complex long bone nonunions using limb reconstruction system | |
| Binski | Taylor spatial frame in acute fracture care | |
| CN118830908B (en) | Long bone fracture reduction instrument | |
| US12133655B2 (en) | Reusable surgical guide for osteosynthesis surgery in particular of the hallux valgus | |
| US10039570B2 (en) | Orthopedic device for closed fracture reduction | |
| Boraiah et al. | Efficacy of an aiming device for the placement of distal interlocking screws in trochanteric fixation nailing | |
| Seyhan et al. | A new distal locking technique in intramedullary nailing | |
| CN103099658A (en) | Mini-type metacarpal bone and finger bone external fixing support | |
| Molloy et al. | Treatment of nonunion and malunion of trauma of the foot and ankle using external fixation | |
| Park et al. | Conventional bicortical pin substitution with a novel unicortical pin in external fixation: A biomechanical study | |
| CN213310237U (en) | Reduction device for minimally invasive auxiliary reduction of tibial plateau fracture under monitoring of arthroscope | |
| CN118845188B (en) | A kit for navigation reduction of long bone fractures | |
| Thermann et al. | Minimally invasive fracture stabilization in foot trauma | |
| CN108433800B (en) | Intramedullary steel plate fixing system | |
| RU2808116C1 (en) | Set of instruments for transpedicular fixation of spine with modeling of rods and fixation of transpedicular and locking screws | |
| RU2796873C1 (en) | Set for installation of a plate for osteosynthesis in the treatment of valgus deformity of the first toe and a method of its use | |
| RU2164390C2 (en) | Method for reducing distal intertibial syndesmosis and removing external foot subluxation | |
| Tetsworth et al. | Post-traumatic reconstruction: femoral malunion | |
| CN219230095U (en) | Guide device | |
| CN222657159U (en) | Arc-shaped pressurizing pliers for orthopaedics department of hospital | |
| Salama et al. | Correction of lower-limb deformities using Ilizarov device | |
| US9549771B1 (en) | Fingerstall-cannulated guide for fast and accurate guide wire positioning | |
| US20240285291A1 (en) | Reusable surgical guide for osteosynthesis surgery in particular of the hallux valgus and method of using the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |