CN113456206B - Auxiliary intramedullary nail taking-out device for arm fracture - Google Patents
Auxiliary intramedullary nail taking-out device for arm fracture Download PDFInfo
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- CN113456206B CN113456206B CN202110762155.9A CN202110762155A CN113456206B CN 113456206 B CN113456206 B CN 113456206B CN 202110762155 A CN202110762155 A CN 202110762155A CN 113456206 B CN113456206 B CN 113456206B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- 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, setting implements or the like
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/92—Impactors or extractors, e.g. for removing intramedullary devices
- A61B17/921—Impactors or extractors, e.g. for removing intramedullary devices for intramedullary devices
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G13/00—Operating tables; Auxiliary appliances therefor
- A61G13/10—Parts, details or accessories
- A61G13/12—Rests specially adapted therefor; Arrangements of patient-supporting surfaces
- A61G13/1205—Rests specially adapted therefor; Arrangements of patient-supporting surfaces for specific parts of the body
- A61G13/1235—Arms
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Abstract
The invention provides an intramedullary nail auxiliary taking-out device for arm fracture, which comprises an arm supporting mechanism, an angle adjusting guide mechanism, a traction drawing mechanism and an energy storage impact mechanism, wherein the angle adjusting guide mechanism is arranged at the rear end of the arm supporting mechanism, the traction drawing mechanism is arranged in the middle of the angle adjusting guide mechanism, the energy storage impact mechanism is arranged in the middle of the traction drawing mechanism, and the arm supporting mechanism is used for fixing an arm. The arm fixing device has the advantages that the arm supporting plate on the arm supporting frame and the arm binding frame are used for fixing the arm, the traction drawing frame can be used for drawing the intramedullary nail to synchronously move along the nail pulling guide rod so as to take out the intramedullary nail from the fixing arm, the whole operation is more convenient, meanwhile, the traction drawing frame is mutually connected with the intramedullary nail through the fixing drawing frame, the traction drawing frame is connected with the fixing drawing frame through the electromagnetic adsorption structure, the maximum traction force is conveniently controlled, the fracture of the intramedullary nail in the bone is avoided from damaging the bone of a patient, and the intramedullary nail is safer and more convenient to take out.
Description
Technical Field
One or more embodiments of the specification relate to the technical field of orthopedic medical instruments, in particular to an intramedullary nail auxiliary extraction device for arm fracture.
Background
An intramedullary nail or intramedullary needle belongs to an orthopedic internal fixation instrument in medical instruments, and the structure comprises an intramedullary nail rod, wherein a near-end locking screw hole is arranged at the near end of the intramedullary nail rod, a pressure reducing plane is arranged on the surface of the intramedullary nail rod, more than one strip-shaped pressure reducing plane is arranged on the surface of the intramedullary nail rod, the pressure reducing plane can extend from the near end of the intramedullary nail rod to the far end of the intramedullary nail rod, a locking screw positioning screw hole and a connecting sleeve positioning groove are arranged at the near end of the intramedullary nail rod, the intramedullary nail or intramedullary needle is generally driven into a bone to support and fix the bone when the humerus or radius of an arm is fractured, and the driven intramedullary nail or intramedullary needle needs to be taken out after the fractured bone is completely healed.
The applicant finds that when an intramedullary nail or an intramedullary needle which is driven into a bone is taken out at present, the connection between the intramedullary nail or the intramedullary needle and the bone is generally tight due to the growth and healing of the bone, so that the resistance which needs to be overcome when the intramedullary nail or the intramedullary needle is taken out is large, a sleeve or a hammer needs to be used for reverse drawing striking in general practical operation, the intramedullary nail or the intramedullary needle is gradually pulled out from a small section by a short impact force, but the mode completely depends on the preset opening of the bone for guiding, the constant force applying direction and the stable force are difficult to maintain when the striking and the pulling are carried out, the integral operation is difficult and inefficient, the bone of a patient is easy to damage, and the intramedullary nail or the intramedullary needle is likely to be broken and difficult to take out from the bone.
Disclosure of Invention
In view of the above, one or more embodiments of the present disclosure are directed to an intramedullary nail auxiliary extraction device for arm fracture, so as to solve the problems that the conventional direct tapping and drawing is adopted when extracting an intramedullary nail or an intramedullary needle, the overall operation is difficult and inefficient, the bone of a patient is easily damaged, and the intramedullary nail or the intramedullary needle may be broken and difficult to extract in the bone.
Based on the above purpose, one or more embodiments of the present specification provide an intramedullary nail auxiliary extraction device for arm fracture, including an arm support mechanism, an angle modulation guide mechanism, a traction drawing mechanism and an energy storage impact mechanism, where the rear end of the arm support mechanism is provided with the angle modulation guide mechanism, the middle of the angle modulation guide mechanism is provided with the traction drawing mechanism, the middle of the traction drawing mechanism is provided with the energy storage impact mechanism, the arm support mechanism is used to fix an arm, and the traction drawing mechanism is connected with the arm support mechanism through the angle modulation guide mechanism, the traction drawing mechanism is used to traction and draw an intramedullary nail in a bone of the fixed arm, and the energy storage impact mechanism provides impact traction force for the traction drawing mechanism;
the arm supporting mechanism comprises an arm supporting frame, an arm supporting plate is arranged in the middle of the arm supporting frame, a supporting cross rod is arranged in parallel in the middle of the arm supporting plate, a supporting rotating shaft is arranged at the bottom of the arm supporting frame, a fixed connecting frame is arranged below the supporting rotating shaft, and the arm supporting frame is rotatably connected with the fixed connecting frame through the supporting rotating shaft;
a plurality of arm binding frames are arranged above the arm supporting plate, an adjusting sliding sleeve is arranged in the middle of each arm binding frame, the arm binding frames are connected with the supporting cross rod in a sliding mode through the adjusting sliding sleeves, closing rotating shafts are symmetrically arranged on the left side and the right side of each arm binding frame, and a C-shaped hoop frame is rotatably connected above each closing rotating shaft;
the angle adjusting guide mechanism comprises a guide adjusting frame, and nail pulling guide rods are symmetrically arranged in parallel on the left side and the right side in the middle of the guide adjusting frame;
the front end of the guide adjusting frame and the rear end of the arm supporting frame are both provided with extension sleeves, extension connecting rods are arranged inside the extension sleeves in a nested sliding mode, a connecting spherical shell is arranged at the top end of the extension connecting rod arranged on one side of the arm supporting frame, a ball head fixing button is arranged in the middle of the connecting spherical shell, a connecting ball head is arranged at the top end of the extension connecting rod arranged on one side of the guide adjusting frame, and the extension connecting rods are freely and rotatably connected through the connecting spherical shell and the connecting ball head;
the drawing mechanism comprises a drawing frame, connecting sliding sleeves are symmetrically arranged on the left side and the right side of the drawing frame, the drawing frame is in sliding connection with the nail pulling guide rod through the connecting sliding sleeves, a tension sensor is arranged at the front end of the drawing frame, a connecting sleeve is arranged on the front side of the tension sensor, a fixed electromagnet is arranged at the bottom of the inner side of the connecting sleeve, and the connecting sleeve is connected with the drawing frame through the tension sensor;
the traction drawing mechanism further comprises a fixed traction frame, a fixed suction block is arranged at the rear end of the fixed traction frame, the fixed traction frame is connected with the connecting sleeve in a nested mode through the fixed suction block, a connecting traction rod is arranged at the front end of the fixed traction frame, and a connecting threaded head is arranged at the front end of the connecting traction rod;
a central mounting groove is formed in the middle of the traction drawing frame, embedded connecting grooves are formed in the front side and the rear side of the central mounting groove, and threaded sleeves are arranged on the outer sides of the embedded connecting grooves;
the energy storage impact mechanism comprises an impact guide rod, the front side and the rear side of the impact guide rod are respectively provided with an embedded connecting block, an impact block is nested in the middle of the impact guide rod, the center of the impact block is provided with a central sliding sleeve, the impact block is connected with the impact guide rod in a sliding mode through the central sliding sleeve, and the front side of the impact block is provided with a force storage spring;
the impact guide rod is connected with the traction drawing frame through the embedded connecting block and the embedded connecting groove, the size of the embedded connecting block is matched with that of the embedded connecting groove, the size of the impact guide rod is matched with that of the central mounting groove, a connecting thread is arranged on the outer side of the embedded connecting block, and the threaded sleeve is rotatably connected with the embedded connecting block through the connecting thread;
the left side and the right side of the impact block are both provided with pressing baffles, the left side and the right side of the central mounting groove are both provided with a force accumulating rotating wheel, a central rotating shaft is arranged at the center of the force accumulating rotating wheel, the force accumulating rotating wheel is rotatably connected with the traction drawing frame through the central rotating shaft, the inner side surface of the force accumulating rotating wheel is vertically provided with a linkage pressure rod, the outer side of the linkage pressure rod is nested and rotatably provided with a pressure rod rotating sleeve, and the outer end of the central rotating shaft is provided with a rotating handle;
the linkage pressure lever is contacted with the side surface of the pressure baffle plate through the pressure lever rotating sleeve.
In some optional embodiments, a locking knob is arranged in the middle of the adjusting sliding sleeve, the C-shaped hoop frames are symmetrically arranged about a vertical center line of the arm binding frame, the C-shaped hoop frames can be rotationally buckled with each other through the closing rotating shaft to form a complete annular structure, a locking electromagnet is arranged at the top end of each C-shaped hoop frame, and a binding air bag is arranged on the inner side of each C-shaped hoop frame.
In some optional embodiments, the connecting spherical shell and the connecting spherical head are mutually matched in size, and the fixed attraction block is made of a magnetic material.
In some optional embodiments, a locking sleeve is vertically arranged in the middle of the connecting sliding sleeve, a locking latch is slidably arranged inside the locking sleeve in a nested manner, an inclined guide surface is arranged on the rear side of the bottom end of the locking latch, a locking spring is arranged at the top end of the locking latch, and an unlocking deflector rod is arranged in the middle of the locking latch.
In some optional embodiments, a unidirectional rack is uniformly arranged in the middle of the nail pulling guide rod, and the locking latch and the unidirectional rack are mutually matched in size.
From the above, it can be seen that the intramedullary nail auxiliary extracting device for arm fracture provided in one or more embodiments of the present disclosure can fix an arm through an arm supporting plate and an arm binding frame on an arm supporting frame, the rear end of the arm supporting frame is connected with a guiding adjusting frame and a nail pulling guide rod, the pulling and pulling frame can move to the rear side along the nail pulling guide rod, and further the intramedullary nail is pulled to move synchronously so as to extract the intramedullary nail from the fixing arm, thereby avoiding the traditional direct knocking and pulling, the whole operation is more convenient and efficient, meanwhile, the pulling and pulling frame is connected with the intramedullary nail through the fixing and pulling frame, the pulling and pulling frame is connected with the fixing and pulling frame through an electromagnetic adsorption structure, so as to control the maximum pulling force, and a pulling force sensor is further provided to monitor the pulling force applied by the pulling and pulling frame in real time, thereby preventing the intramedullary nail or intramedullary nail from being broken in a bone to cause damage to the bone of a patient, the intramedullary nail is safer and more convenient to take out.
Drawings
In order to more clearly illustrate one or more embodiments of the present disclosure or technical solutions in related arts, the drawings used in the description of the embodiments or related arts will be briefly described below, it is obvious that the drawings in the following description are only examples of one or more embodiments of the present disclosure, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic front view of one or more embodiments of the present disclosure;
FIG. 2 is a schematic diagram of a top view of one or more embodiments of the disclosure;
FIG. 3 is a schematic diagram illustrating the configuration of the adjustment state according to one or more embodiments of the present disclosure;
FIG. 4 is a schematic structural diagram of an arm support mechanism according to one or more embodiments of the present disclosure;
FIG. 5 is a schematic diagram of an arm support according to one or more embodiments of the present disclosure;
FIG. 6 is a schematic diagram of an arm restraint frame according to one or more embodiments of the present disclosure;
FIG. 7 is a schematic structural diagram of a recliner mechanism according to one or more embodiments of the present disclosure;
FIG. 8 is a schematic diagram of a guiding adjustment bracket according to one or more embodiments of the present disclosure;
FIG. 9 is a schematic diagram of a pull-pull mechanism according to one or more embodiments of the present disclosure;
FIG. 10 is a schematic diagram of a state in which an energy storing impact mechanism is separated from a traction drawing mechanism according to one or more embodiments of the present disclosure;
FIG. 11 is a schematic diagram of a pull draw bench according to one or more embodiments of the present disclosure;
FIG. 12 is a schematic illustration of a locking sleeve according to one or more embodiments of the present disclosure;
FIG. 13 is a schematic diagram of a stationary traction frame according to one or more embodiments of the present disclosure;
FIG. 14 is a schematic illustration of a stored energy impact mechanism according to one or more embodiments of the disclosure;
FIG. 15 is a schematic diagram of a power storage rotor according to one or more embodiments of the present disclosure;
wherein: 1 arm supporting mechanism, 101 arm supporting frame, 102 arm supporting plate, 103 supporting cross bar, 104 supporting rotating shaft, 105 fixed connecting frame, 2 arm binding frame, 201 adjusting sliding sleeve, 202 locking knob, 203 closed rotating shaft, 204C-shaped hoop frame, 205 binding air bag, 206 locking electromagnet, 3 angle-adjusting guide mechanism, 301 guide adjusting frame, 302 nail pulling guide rod, 303 one-way rack, 4 extending sleeve, 401 connecting rod locking button, 402 extending connecting rod, 403 connecting spherical shell, 404 spherical head fixing button, 405 connecting spherical head, 5 traction pulling mechanism, 501 traction pulling frame, 502 connecting sliding sleeve, 503 tension sensor, 504 connecting sleeve, 505 fixed electromagnet, 506 center mounting groove, 507 embedding connecting groove, 508 threaded sleeve, 6 fixed traction frame, 601 fixed suction block, 602 connecting traction rod, 603 connecting threaded head, 7 locking sleeve, 701 locking latch, 702 inclined guide surface, 703 locking spring, 704 unlocking shift lever, 8 energy storage impact mechanism, 801 impact guide rod, 802 embedded connecting block, 803 connecting thread, 804 impact block, 805 central sliding sleeve, 806 pressing baffle, 807 energy storage spring, 9 energy storage rotating wheel, 901 central rotating shaft, 902 linkage pressing rod, 903 pressing rod rotating sleeve and 904 rotating handle.
Detailed Description
To make the objects, aspects and advantages of one or more embodiments of the present disclosure more apparent, one or more embodiments of the present disclosure are described in further detail below with reference to specific embodiments.
It is to be understood that unless otherwise defined, technical or scientific terms used herein with respect to one or more embodiments of the present disclosure shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of "first," "second," and similar language in one or more embodiments of the present description is not intended to imply any order, quantity, or importance, but rather the intention is to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
In one or more embodiments of the present specification, an intramedullary nail auxiliary extraction device for arm fracture comprises an arm support mechanism 1, an angle modulation guide mechanism 3, a traction drawing mechanism 5 and an energy storage impact mechanism 8, wherein the angle modulation guide mechanism 3 is arranged at the rear end of the arm support mechanism 1, the traction drawing mechanism 5 is arranged in the middle of the angle modulation guide mechanism 3, the energy storage impact mechanism 8 is arranged in the middle of the traction drawing mechanism 5, the arm support mechanism 1 is used for fixing an arm, the traction drawing mechanism 5 is connected with the arm support mechanism 1 through the angle modulation guide mechanism 3, the traction drawing mechanism 5 is used for traction drawing and fixing an intramedullary nail in an arm bone, and the energy storage impact mechanism 8 provides impact traction force for the traction drawing mechanism 5;
the arm supporting mechanism 1 comprises an arm supporting frame 101, an arm supporting plate 102 is arranged in the middle of the arm supporting frame 101, a supporting cross rod 103 is arranged in parallel in the middle of the arm supporting plate 102, a supporting rotating shaft 104 is arranged at the bottom of the arm supporting frame 101, a fixed connecting frame 105 is arranged below the supporting rotating shaft 104, and the arm supporting frame 101 is rotatably connected with the fixed connecting frame 105 through the supporting rotating shaft 104;
a plurality of arm binding frames 2 are arranged above the arm supporting plate 102, an adjusting sliding sleeve 201 is arranged in the middle of each arm binding frame 2, the arm binding frames 2 are connected with the supporting cross bar 103 in a sliding mode through the adjusting sliding sleeves 201, closing rotating shafts 203 are symmetrically arranged on the left side and the right side of each arm binding frame 2, and a C-shaped hoop frame 204 is rotatably connected above each closing rotating shaft 203;
the angle adjusting guide mechanism 3 comprises a guide adjusting frame 301, and nail pulling guide rods 302 are symmetrically arranged in parallel at the left side and the right side in the middle of the guide adjusting frame 301;
the front end of the guide adjusting frame 301 and the rear end of the arm supporting frame 101 are both provided with extension sleeves 4, the inner sides of the extension sleeves 4 are provided with extension connecting rods 402 in a nested sliding manner, the top end of the extension connecting rod 402 arranged on one side of the arm supporting frame 101 is provided with a connecting spherical shell 403, the middle of the connecting spherical shell 403 is provided with a ball head fixing button 404, the top end of the extension connecting rod 402 arranged on one side of the guide adjusting frame 301 is provided with a connecting ball head 405, and the extension connecting rods 402 are freely and rotatably connected through the connecting spherical shell 403 and the connecting ball head 405;
the traction drawing mechanism 5 comprises a traction drawing frame 501, connecting sliding sleeves 502 are symmetrically arranged on the left side and the right side of the traction drawing frame 501, the traction drawing is in sliding connection with the nail pulling guide rod 302 through the connecting sliding sleeves 502, a tension sensor 503 is arranged at the front end of the traction drawing frame 501, a connecting sleeve 504 is arranged on the front side of the tension sensor 503, a fixed electromagnet 505 is arranged at the bottom of the inner side of the connecting sleeve 504, and the connecting sleeve 504 is connected with the traction drawing frame 501 through the tension sensor 503;
the traction drawing mechanism 5 further comprises a fixed traction frame 6, a fixed suction block 601 is arranged at the rear end of the fixed traction frame 6, the fixed traction frame 6 is connected with the connecting sleeve 504 in a nested mode through the fixed suction block 601, a connecting traction rod 602 is arranged at the front end of the fixed traction frame 6, and a connecting threaded head 603 is arranged at the front end of the connecting traction rod 602;
a central mounting groove 506 is arranged in the middle of the traction drawing frame 501, the front side and the rear side of the central mounting groove 506 are respectively provided with a jogged connecting groove 507, and the outer side of the jogged connecting groove 507 is provided with a threaded sleeve 508;
the energy storage impact mechanism 8 comprises an impact guide rod 801, the front side and the rear side of the impact guide rod 801 are respectively provided with a jogged connecting block 802, the middle of the impact guide rod 801 is nested with an impact block 804, the center of the impact block 804 is provided with a central sliding sleeve 805, the impact block 804 is connected with the impact guide rod 801 in a sliding mode through the central sliding sleeve 805, and the front side of the impact block 804 is provided with a power storage spring 807;
the impact guide rod 801 is connected with the traction drawing frame 501 through the embedded connecting block 802 and the embedded connecting groove 507, the size of the embedded connecting block 802 is matched with that of the embedded connecting groove 507, the size of the impact guide rod 801 is matched with that of the central mounting groove 506, the outer side of the embedded connecting block 802 is provided with a connecting thread 803, and the threaded sleeve 508 is rotatably connected with the embedded connecting block 802 through the connecting thread 803;
the left side and the right side of the impact block 804 are both provided with a pressing baffle 806, the left side and the right side of the central mounting groove 506 are both provided with a power accumulating rotating wheel 9, the center of the power accumulating rotating wheel 9 is provided with a central rotating shaft 901, the power accumulating rotating wheel 9 is rotatably connected with the traction drawing frame 501 through the central rotating shaft 901, the inner side surface of the power accumulating rotating wheel 9 is vertically provided with a linkage pressing rod 902, the outer side of the linkage pressing rod 902 is nested and rotatably provided with a pressing rod rotating sleeve 903, and the outer end of the central rotating shaft 901 is provided with a rotating handle 904;
the linkage pressing rod 902 is contacted with the side surface of the pressing baffle 806 through a pressing rod rotating sleeve 903.
Referring to fig. 1 to 15, as an embodiment of the present invention, an intramedullary nail auxiliary extraction device for arm fracture includes an arm support mechanism 1, an angle modulation guide mechanism 3, a traction drawing mechanism 5 and an energy storage impact mechanism 8, wherein the angle modulation guide mechanism 3 is disposed at the rear end of the arm support mechanism 1, the traction drawing mechanism 5 is disposed in the middle of the angle modulation guide mechanism 3, the energy storage impact mechanism 8 is disposed in the middle of the traction drawing mechanism 5, the arm support mechanism 1 is used for fixing an arm, the traction drawing mechanism 5 is connected with the arm support mechanism 1 through the angle modulation guide mechanism 3, the traction drawing mechanism 5 is used for traction drawing and fixing an intramedullary nail in an arm bone, and the energy storage impact mechanism 8 provides impact traction force for the traction drawing mechanism 5; the arm supporting mechanism 1 comprises an arm supporting frame 101, an arm supporting plate 102 is arranged in the middle of the arm supporting frame 101, a supporting cross rod 103 is arranged in parallel in the middle of the arm supporting plate 102, a supporting rotating shaft 104 is arranged at the bottom of the arm supporting frame 101, a fixed connecting frame 105 is arranged below the supporting rotating shaft 104, and the arm supporting frame 101 is rotatably connected with the fixed connecting frame 105 through the supporting rotating shaft 104; a plurality of arm binding frames 2 are arranged above the arm supporting plate 102, an adjusting sliding sleeve 201 is arranged in the middle of each arm binding frame 2, the arm binding frames 2 are connected with the supporting cross bar 103 in a sliding mode through the adjusting sliding sleeves 201, closing rotating shafts 203 are symmetrically arranged on the left side and the right side of each arm binding frame 2, and a C-shaped hoop frame 204 is rotatably connected above each closing rotating shaft 203; the angle adjusting guide mechanism 3 comprises a guide adjusting frame 301, and nail pulling guide rods 302 are symmetrically arranged in parallel at the left side and the right side in the middle of the guide adjusting frame 301; the front end of the guide adjusting frame 301 and the rear end of the arm supporting frame 101 are both provided with extension sleeves 4, the inner sides of the extension sleeves 4 are provided with extension connecting rods 402 in a nested sliding manner, the top end of the extension connecting rod 402 arranged on one side of the arm supporting frame 101 is provided with a connecting spherical shell 403, the middle of the connecting spherical shell 403 is provided with a ball head fixing button 404, the top end of the extension connecting rod 402 arranged on one side of the guide adjusting frame 301 is provided with a connecting ball head 405, and the extension connecting rods 402 are freely and rotatably connected through the connecting spherical shell 403 and the connecting ball head 405; the traction drawing mechanism 5 comprises a traction drawing frame 501, connecting sliding sleeves 502 are symmetrically arranged on the left side and the right side of the traction drawing frame 501, the traction drawing is in sliding connection with the nail pulling guide rod 302 through the connecting sliding sleeves 502, a tension sensor 503 is arranged at the front end of the traction drawing frame 501, a connecting sleeve 504 is arranged on the front side of the tension sensor 503, a fixed electromagnet 505 is arranged at the bottom of the inner side of the connecting sleeve 504, and the connecting sleeve 504 is connected with the traction drawing frame 501 through the tension sensor 503; the traction drawing mechanism 5 further comprises a fixed traction frame 6, a fixed suction block 601 is arranged at the rear end of the fixed traction frame 6, the fixed traction frame 6 is connected with the connecting sleeve 504 in a nested mode through the fixed suction block 601, a connecting traction rod 602 is arranged at the front end of the fixed traction frame 6, and a connecting threaded head 603 is arranged at the front end of the connecting traction rod 602; a central mounting groove 506 is arranged in the middle of the traction drawing frame 501, the front side and the rear side of the central mounting groove 506 are respectively provided with a jogged connecting groove 507, and the outer side of the jogged connecting groove 507 is provided with a threaded sleeve 508; the energy storage impact mechanism 8 comprises an impact guide rod 801, the front side and the rear side of the impact guide rod 801 are respectively provided with a jogged connecting block 802, the middle of the impact guide rod 801 is nested with an impact block 804, the center of the impact block 804 is provided with a central sliding sleeve 805, the impact block 804 is connected with the impact guide rod 801 in a sliding mode through the central sliding sleeve 805, and the front side of the impact block 804 is provided with a power storage spring 807; the impact guide rod 801 is connected with the traction drawing frame 501 through the embedded connecting block 802 and the embedded connecting groove 507, the size of the embedded connecting block 802 is matched with that of the embedded connecting groove 507, the size of the impact guide rod 801 is matched with that of the central mounting groove 506, the outer side of the embedded connecting block 802 is provided with a connecting thread 803, and the threaded sleeve 508 is rotatably connected with the embedded connecting block 802 through the connecting thread 803; the left side and the right side of the impact block 804 are both provided with a pressing baffle 806, the left side and the right side of the central mounting groove 506 are both provided with a power accumulating rotating wheel 9, the center of the power accumulating rotating wheel 9 is provided with a central rotating shaft 901, the power accumulating rotating wheel 9 is rotatably connected with the traction drawing frame 501 through the central rotating shaft 901, the inner side surface of the power accumulating rotating wheel 9 is vertically provided with a linkage pressing rod 902, the outer side of the linkage pressing rod 902 is nested and rotatably provided with a pressing rod rotating sleeve 903, and the outer end of the central rotating shaft 901 is provided with a rotating handle 904; the linkage pressing rod 902 is contacted with the side surface of the pressing baffle 806 through a pressing rod rotating sleeve 903.
Referring to fig. 1 to 15, optionally, the device can fix the arm through the arm supporting mechanism 1 to prevent the arm from moving during the operation, so as to facilitate the operation of the arm and remove the intramedullary nail from the bone, the arm supporting mechanism 1 can support the corresponding arm through the arm supporting plate 102 disposed on the arm supporting frame 101, the upper side of the arm supporting plate 102 is in an arc concave structure to facilitate the attachment of the arm and the arm supporting plate 102, and the arm supporting plate 102 is covered with soft package material to improve the comfort of the arm supporting plate 102 when supporting and placing the arm, the arm supporting plate 102 is supported by the arm supporting frame 101, a fixed connecting frame 105 is correspondingly disposed below the arm supporting frame 101, the device can be integrally fixed at the corresponding position of the operating table through the fixed connecting frame 105, and the whole structure of the device is supported by the fixed connecting frame 105 and the arm supporting frame 101, the arm supporting frame 101 is rotatably connected with a fixed connecting frame 105 below through a supporting rotating shaft 104, so that the angle of the whole arm supporting frame 101 can be conveniently adjusted through the supporting rotating shaft 104 to be matched with the operation to place an arm, an arm binding frame 2 is further arranged on the arm supporting plate 102, a C-shaped hoop frame 204 is arranged on the arm binding frame 2, the C-shaped hoop frames 204 are symmetrically arranged about the vertical central line of the arm binding frame 2, the C-shaped hoop frames 204 can be rotatably buckled with each other through a closing rotating shaft 203 to form a complete annular structure, so that the arm can be bound and fixed in the ring, the arm is further fixed and bound on the arm supporting plate 102, the arm is prevented from moving when the intramedullary nail is pulled out, so that the safety in the operation process is improved, a locking electromagnet 206 is arranged at the top end of the C-shaped hoop frame 204, and the C-shaped hoop frame 204 can be locked, buckled or unlocked through the locking electromagnet 206, so as to tie fixedly and liberation to the arm, it is more convenient to use, and the inboard of C type ring hoop frame 204 is provided with tie gasbag 205, external air pump can be connected to tie gasbag 205, can make tie gasbag 205 inflation through aerifing, it is fixed to contact with the arm with tie gasbag 205 through inflation, it is more comfortable safety when the fixed arm of flexible tie gasbag 205, avoid causing damage or blood to the arm and not lead to, and through adjusting tie gasbag 205 inflation volume alright adjust the collision degree of tie gasbag 205, so that the fixed not equidimension arm of tie and position, it is more convenient to use, arm tie frame 2 is through adjusting sliding sleeve 201 and supporting horizontal pole 103 sliding connection simultaneously, the centre of adjusting sliding sleeve 201 is provided with locking knob 202, so that the position of fixed arm is adjusted to removal arm tie frame 2.
Referring to fig. 1 to 15, optionally, the device fixes the arm through the arm supporting mechanism 1 to avoid the arm moving during the operation, the arm supporting mechanism 1 is provided with an angle adjusting guiding mechanism 3 at the rear end, the traction pulling mechanism 5 can move along the angle adjusting guiding mechanism 3 to pull out the intramedullary nail in the arm fixed on the arm supporting mechanism 1 for extraction, the angle adjusting guiding mechanism 3 is mainly composed of a guiding adjusting frame 301, a plurality of nail pulling guiding rods 302 are arranged on the guiding adjusting frame 301 in parallel, the traction pulling frame 501 of the traction pulling mechanism 5 can slide along the nail pulling guiding rods 302 through a connecting sliding sleeve 502, the fixed traction frame 6 arranged at the front end of the traction pulling frame 501 can be connected with the rear end of the intramedullary nail, and further the traction pulling frame 501 can slide along the nail pulling guiding rods 302 to drive the fixed traction pulling frame 6 to move synchronously, thereby pulling the intramedullary nail out of the bone for extraction, therefore, the traction and extraction direction of the intramedullary nail is determined by the orientation of the nail extraction guide rod 302, the front end of the guide adjusting frame 301 and the rear end of the arm supporting frame 101 are both provided with the extension sleeve 4, the inner side of the extension sleeve 4 is provided with the extension connecting rod 402 in a nested and sliding manner, the top end of the extension connecting rod 402 arranged at one side of the arm supporting frame 101 is provided with the connecting spherical shell 403, the middle of the connecting spherical shell 403 is provided with the ball head fixing button 404, the top end of the extension connecting rod 402 arranged at one side of the guide adjusting frame 301 is provided with the connecting spherical head 405, the extension connecting rods 402 are freely and rotatably connected through the connecting spherical shell 403 and the connecting spherical head 405, the connecting spherical shell 403 and the connecting spherical head 405 are mutually matched in size, therefore, the angle between the guide adjusting frame 301 and the arm supporting frame 101 can be adjusted and fixed through the universal rotation connection structure formed by the connecting spherical shell 403 and the connecting spherical head 405 and the telescopic structure formed by the extension sleeve 4 and the extension connecting rod 402, so as to be matched with the extraction direction of the corresponding intramedullary nail and be more flexible and convenient to operate and use.
Referring to fig. 1 to 15, optionally, the device slides along the nail pulling guide rod 302 through the arranged traction pulling frame 501 to drive the fixed traction frame 6 to move synchronously, so as to pull out and take out the intramedullary nail with bone, the intramedullary nail is connected with the traction pulling frame 501 through the fixed traction frame 6, the front end of the fixed traction frame 6 is provided with a connecting traction rod 602, the front end of the connecting traction rod 602 is provided with a standard connecting threaded head 603, the connecting traction rod 602 is rotatably arranged at the front end of the fixed traction frame 6, the connecting threaded head 603 can be screwed into the rear end of the intramedullary nail through rotating the fixed traction frame 6 to connect and fix the intramedullary nail, the rear end of the fixed traction frame 6 is embedded and sleeved in the connecting sleeve 504 at the front end of the traction pulling frame 501 through the arranged fixed attraction block 601, the bottom of the connecting sleeve 504 is provided with a fixed electromagnet 505, the fixed attraction block 601 is made of magnetic material, therefore, the fixed electromagnet 505 can attract the fixed attraction block 601 to fixedly connect the fixed traction frame 6 and the traction and drawing frame 501, the magnetic force of the fixed electromagnet 505 is related to the magnitude of the introduced current, and the magnetic force of the fixed electromagnet 505 is also the maximum separation force of the connection between the fixed traction frame 6 and the traction and drawing frame 501, so that the magnetic force of the fixed electromagnet 505, namely the maximum separation force of the connection between the fixed traction frame 6 and the traction and drawing frame 501, can be controlled by controlling the magnitude of the introduced current of the fixed electromagnet 505 to form a safety structure, when the traction and drawing frame 501 pulls the fixed traction frame 6 to move and extract the intramedullary nail, when the resistance encountered by extraction reaches a preset value, the fixed traction frame 6 and the traction and drawing frame 501 can overcome the mutual separation of the magnetic force to avoid applying excessive tensile force to the intramedullary nail, so that the middle of the intramedullary nail is broken or the bone is damaged, meanwhile, the connecting sleeve 504 is connected with the traction drawing frame 501 through the tension sensor 503, and the tension applied by the traction drawing frame 501 can be monitored in real time through the tension sensor 503 so as to adjust the operation through specific numerical values, thereby improving the safety when the intramedullary nail is pulled out.
Referring to fig. 1 to 15, optionally, in some optional embodiments, the device slides along the nail pulling guide rod 302 to the rear side by pulling the pulling and pulling frame 501 to drive the fixed pulling frame 6 to move, and then pulls and pulls out the intramedullary nail, and the pulling and pulling frame 501 slides along the nail pulling guide rod 302 by the connecting sliding sleeve 502, the middle of the connecting sliding sleeve 502 is vertically provided with the locking sleeve 7, the inner side of the locking sleeve 7 is nested and slid with the locking latch 701, the rear side of the bottom end of the locking latch 701 is provided with the inclined guide surface 702, the top end of the locking latch 701 is provided with the locking spring 703, meanwhile, the middle of the nail pulling guide rod 302 is uniformly provided with the one-way rack 303, the locking latch 701 and the one-way rack 303 are mutually matched in size, the locking latch 701 forms the one-way movement limiting structure by the inclined guide surface 702 and the one-way rack 303, so that the pulling and pulling frame 501 can only move to the rear side, so when the pulling and pulling frame 501 slides along the nail pulling guide rod 302, the locking latch 701 can be embedded into the one-way rack 303 to fix the connecting sliding sleeve 502 and the traction drawing frame 501, so that the traction drawing frame 501 is prevented from moving forward in a reverse direction when the intramedullary nail is pulled out, meanwhile, the unlocking shift lever 704 is arranged in the middle of the locking latch 701, the locking latch 701 can be actively moved through the unlocking shift lever 704 to be separated from the one-way rack 303, the traction drawing frame 501 can be automatically moved, and convenience and reliability in operation can be improved.
Referring to fig. 1 to 15, optionally, the device slides along the nail pulling guide rod 302 by the pulling and pulling frame 501 to the rear side to drive the fixed pulling frame 6 to move, thereby pulling and pulling out the intramedullary nail, the pulling and pulling frame 501 provides the impact traction force by the energy storage impact mechanism 8, the energy storage impact mechanism 8 includes an impact guide rod 801, the front and rear sides of the impact guide rod 801 are provided with embedded connection blocks 802, the middle of the impact guide rod 801 is nested with an impact block 804, the center of the impact block 804 is provided with a central sliding sleeve 805, the impact block 804 is slidably connected with the impact guide rod 801 by the central sliding sleeve 805, the front side of the impact block 804 is provided with a force storage spring 807, the middle of the pulling and pulling frame 501 is provided with a central installation groove 506, the front and rear sides of the central installation groove 506 are provided with embedded connection grooves 507, the outer side of the embedded connection grooves 507 is provided with a threaded sleeve 508, and the impact guide rod 801 is mutually connected with the pulling and pulling frame 501 by the embedded connection blocks 802 and the embedded connection grooves 507 Then, the size of the jogged connecting block 802 is matched with that of the jogged connecting groove 507, and the size of the impact guiding rod 801 is matched with that of the central mounting groove 506, so that the corresponding energy storage impact mechanism 8 can be jogged and mounted in the middle of the traction drawing frame 501, when the energy storage impact mechanism 8 works, the impact block 804 arranged on the energy storage impact mechanism can move towards the front side along the impact guiding rod 801, and further can compress the energy storage spring 807 on the front side, after the impact block 804 moves for a certain distance, the impact block 804 can be released, and the impact block 804 can be pushed by the energy storage spring 807 to move towards the rear side along the line of the impact guiding rod 801 instantaneously, and further the rear end can collide with the jogged connecting block 802 on the rear end of the impact guiding rod 801, so that the instantaneous impact force is transferred to the traction drawing frame 501, the traction drawing frame 501 can move for a short distance along the rear side of the nail pulling guiding rod 302, and further the intramedullary nail is pulled out, therefore, the mass of the impact block 804 and the elastic force of the power storage spring 807 can provide impact traction force for the device, the mass of the impact block 804, the elastic force of the power storage spring 807 and the compression amount of the power storage spring 807 can be kept constant, so that the impact traction force provided each time is constant, so that the constant impact traction force can be provided to pull out the intramedullary nail, the situation that the traction force is too large to cause fracture or damage to bones in the middle of the intramedullary nail is avoided, the safety in pulling out the intramedullary nail is improved, meanwhile, the energy storage impact mechanism 8 and the pulling and pulling frame 501 are in a jogged mounting structure, the outer side of the jogged connecting block 802 is provided with a connecting thread 803, the threaded sleeve 508 is rotatably connected with the jogged connecting block 802 through the connecting thread 803, the connection part of the jogged connecting block 802 and the jogged connecting groove 507 can be fixed through rotating the threaded sleeve 508, therefore, the energy storage impact mechanism 8 can be integrally replaced, the impact block 804 with different qualities and the power storage spring 807 with different elastic forces are replaced, impact traction force with different sizes is provided, and the energy storage impact mechanism is convenient to match with different traction and pull-out requirements for adjustment and is more flexible and convenient to use.
Referring to fig. 1 to 15, optionally, the device slides backwards along the nail pulling guide bar 302 through the pulling and pulling frame 501 to drive the fixed pulling frame 6 to move, thereby pulling and pulling out the intramedullary nail, the pulling and pulling frame 501 provides impact traction force through the energy storage impact mechanism 8, the energy storage impact mechanism 8 compresses the power storage spring 807 through the movable impact block 804, impact traction force can be provided for the device through the mass of the impact block 804 and the elastic force of the power storage spring 807, the left and right sides of the impact block 804 are both provided with the pressing baffles 806, the left and right sides of the central mounting groove 506 are both provided with the power storage wheels 9, the center of the power storage wheels 9 is provided with a central rotating shaft 901, the power storage wheels 9 are rotatably connected with the pulling and pulling frame 501 through the central rotating shaft 901, the inner side surface of the power storage wheels 9 is vertically provided with the linkage compression bar 902, the outer side of the linkage compression bar 902 is nested and rotatably provided with the compression bar rotating sleeve 903, the outer end of the central rotating shaft 901 is provided with a rotating handle 904, the linkage pressure lever 902 is contacted with the side surface of the pressure baffle 806 through a pressure lever rotating sleeve 903, so that the power accumulating rotating wheel 9 is rotated through the rotating handle 904, the linkage pressure lever 902 and the pressure lever rotating sleeve 903 can be driven to move synchronously, the pressure baffle 806 is pushed to the front side through the linkage pressure lever 902 and the pressure lever rotating sleeve 903, so as to drive the impact block 804 to move the compression power accumulating spring 807 to the front side, after the rotating handle 904 rotates for half a circle, the linkage pressure lever 902 and the pressure lever rotating sleeve 903 can push the pressure baffle 806 and the impact block 804 to move forwards for a fixed distance, then the linkage pressure lever 902 and the pressure lever rotating sleeve 903 are convenient for the pressure baffle 806 to be separated from each other, and the impact block 804 can be pushed by the power accumulating spring 807 to move backwards along the line of the impact guide rod 801 instantaneously, so as to provide constant instantaneous impact traction force, so as to further rotate the power accumulating rotating wheel 9, the impact block 804 can be continuously moved and released to provide constant instant impact traction force, the intramedullary nail can be pulled and extracted, the operation is more labor-saving and convenient, and the stability and the efficiency of pulling and extracting the intramedullary nail are higher.
When the intramedullary nail is used, corresponding pipelines of the device are firstly required to be connected, then the angle of the device is required to be adjusted, the arm support can rotate through the support rotating shaft 104 to adjust the inclination angle of the support rotating shaft to be matched with the arm operation, then the angle between the guide adjusting frame 301 and the arm supporting frame 101 is adjusted through a universal rotating connecting structure formed by the connecting spherical shell 403 and the connecting spherical head 405 and a telescopic structure formed by the extending sleeve 4 and the extending connecting rod 402, the fixed locking is carried out through the connecting rod locking button 401 and the spherical head fixing button 404, then the energy storage impact mechanism 8 loaded with the impact block 804 with required quality and the elastic force storage spring 807 is installed according to the intramedullary nail needing to be pulled, when the intramedullary nail is installed, the impact guide rod 801 is embedded into the central installation groove 506 and the embedded connecting groove 507 through the embedded connecting block 802, and then the embedded connecting block 802 is rotationally locked through the rotating threaded sleeve 508 to complete the installation work, after the adjustment is completed, the corresponding arm can be placed on the arm supporting plate 102, the arm binding frame 2 is slid along the supporting cross bar 103 to the desired fixing position and locked by the locking knob 202, then the arm is placed between the arm binding frame 2 and the C-shaped hoop frames 204 at both sides thereof, the C-shaped hoop frames 204 are rotated and closed along the closing rotating shaft 203 to surround and bind the arm, then the locking electromagnet 206 is energized to lock the C-shaped hoop frames 204, the binding air bag 205 is connected to the air pump to be inflated, the binding air bag 205 is inflated by inflation to contact and fix the arm, the arm fixing and the previous operation are completed, the intramedullary nail is removed from the fixing bolt and the exposure is completed, then the connecting drawbar 602 at the front end of the fixing traction frame 6 can be screwed into the rear end of the intramedullary nail which is already opened through the connecting screw head 603, then the fixed traction frame 6 is embedded into the connecting sleeve 504 of the traction drawing frame 501 through the fixed attraction block 601, and a current with a preset magnitude is introduced into the fixed electromagnet 505, so that the fixed electromagnet 505 generates a magnetic force to attract the fixed attraction block 601 and the fixed traction frame 6, then the traction drawing frame 501 can be moved to draw and take out the intramedullary nail, when the traction drawing frame 501 is moved, the power accumulating runner 9 can be rotated through the rotating handle 904 to drive the linkage compression rod 902 and the compression rod rotating sleeve 903 to move synchronously, the compression baffle 806 is pushed forwards through the linkage compression rod 902 and the compression rod rotating sleeve 903 to drive the impact block 804 to move forwards and compress the power accumulating spring 807, after the rotating handle 904 rotates for half a circle, the linkage compression rod 902 and the compression rod rotating sleeve 903 are convenient for the compression baffle 806 to separate from each other, and the impact block 804 can be pushed by the power accumulating spring 807 to move backwards along the line of the impact guide rod 801 instantaneously, the rear end of the intramedullary nail pulling device can collide with the embedded connecting block 802 at the rear end of the impact guide rod 801, so that instant impact force is transmitted to the traction pulling frame 501, the traction pulling frame 501 moves a short distance to the rear side along the nail pulling guide rod 302, the intramedullary nail is further pulled, and the traction pulling frame 501 can continuously move to the rear side along the nail pulling guide rod 302 in a staged manner by continuously rotating the force accumulation rotating wheel 9 so as to completely pull out the intramedullary nail.
The invention provides an auxiliary withdrawing device of intramedullary nail for arm fracture, which can fix arms through an arm supporting plate 102 and an arm binding frame 2 on an arm supporting frame 101, the rear end of the arm supporting frame 101 is connected with a guide adjusting frame 301 and a nail pulling guide rod 302, a traction drawing frame 501 can move backwards along the nail pulling guide rod 302, and further pulls the intramedullary nails to move synchronously so as to withdraw the intramedullary nails from the fixed arms, thereby avoiding the traditional direct knocking and drawing, the whole operation is more convenient and more efficient, meanwhile, the traction drawing frame 501 is mutually connected with the intramedullary nails through a fixed drawing frame 6, the traction drawing frame 501 is connected with the fixed drawing frame 6 through an electromagnetic adsorption structure, the maximum traction force is convenient to control, and a tension sensor 503 is also arranged to monitor the tension applied by the traction drawing frame 501 in real time, thereby avoiding the intramedullary nails or intramedullary nails from being broken in bones to cause damages to the bones of patients, the intramedullary nail is safer and more convenient to take out.
Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant to be exemplary only, and is not intended to suggest that the scope of one or more embodiments of the present specification (including the claims) is limited to these examples; within the context of one or more embodiments of the present description, features from the above embodiments or from different embodiments may also be combined, steps may be performed in any order, and there are many other variations of the different aspects of one or more embodiments of the present description as described above, which are not provided in detail for the sake of brevity.
While one or more embodiments of the present specification have been described in conjunction with specific embodiments thereof, many alternatives, modifications, and variations of these embodiments will be apparent to those of ordinary skill in the art in light of the foregoing description.
It is intended that the one or more embodiments of the present specification embrace all such alternatives, modifications and variations as fall within the broad scope of the appended claims. Therefore, any omissions, modifications, substitutions, improvements, and the like that may be made without departing from the spirit and principles of one or more embodiments of the present disclosure are intended to be included within the scope of the one or more embodiments of the present disclosure.
Claims (5)
1. An intramedullary nail auxiliary taking-out device for arm fracture comprises an arm supporting mechanism, an angle modulation guiding mechanism, a traction drawing mechanism and an energy storage impact mechanism, and is characterized in that the angle modulation guiding mechanism is arranged at the rear end of the arm supporting mechanism, the traction drawing mechanism is arranged in the middle of the angle modulation guiding mechanism, the energy storage impact mechanism is arranged in the middle of the traction drawing mechanism, the arm supporting mechanism is used for fixing an arm, the traction drawing mechanism is mutually connected with the arm supporting mechanism through the angle modulation guiding mechanism, the traction drawing mechanism is used for traction drawing and fixing intramedullary nails in an arm bone, and the energy storage impact mechanism provides impact traction force for the traction drawing mechanism;
the arm supporting mechanism comprises an arm supporting frame, an arm supporting plate is arranged in the middle of the arm supporting frame, a supporting cross rod is arranged in parallel in the middle of the arm supporting plate, a supporting rotating shaft is arranged at the bottom of the arm supporting frame, a fixed connecting frame is arranged below the supporting rotating shaft, and the arm supporting frame is rotatably connected with the fixed connecting frame through the supporting rotating shaft;
a plurality of arm binding frames are arranged above the arm supporting plate, an adjusting sliding sleeve is arranged in the middle of each arm binding frame, the arm binding frames are connected with the supporting cross rod in a sliding mode through the adjusting sliding sleeves, closing rotating shafts are symmetrically arranged on the left side and the right side of each arm binding frame, and a C-shaped hoop frame is rotatably connected above each closing rotating shaft;
the angle adjusting guide mechanism comprises a guide adjusting frame, and nail pulling guide rods are symmetrically arranged in parallel on the left side and the right side in the middle of the guide adjusting frame;
the front end of the guide adjusting frame and the rear end of the arm supporting frame are both provided with extension sleeves, extension connecting rods are arranged inside the extension sleeves in a nested sliding mode, a connecting spherical shell is arranged at the top end of the extension connecting rod arranged on one side of the arm supporting frame, a ball head fixing button is arranged in the middle of the connecting spherical shell, a connecting ball head is arranged at the top end of the extension connecting rod arranged on one side of the guide adjusting frame, and the extension connecting rods are freely and rotatably connected through the connecting spherical shell and the connecting ball head;
the drawing mechanism comprises a drawing frame, connecting sliding sleeves are symmetrically arranged on the left side and the right side of the drawing frame, the drawing frame is in sliding connection with the nail pulling guide rod through the connecting sliding sleeves, a tension sensor is arranged at the front end of the drawing frame, a connecting sleeve is arranged on the front side of the tension sensor, a fixed electromagnet is arranged at the bottom of the inner side of the connecting sleeve, and the connecting sleeve is connected with the drawing frame through the tension sensor;
the traction drawing mechanism further comprises a fixed traction frame, a fixed suction block is arranged at the rear end of the fixed traction frame, the fixed traction frame is connected with the connecting sleeve in a nested mode through the fixed suction block, a connecting traction rod is arranged at the front end of the fixed traction frame, and a connecting threaded head is arranged at the front end of the connecting traction rod;
a central mounting groove is formed in the middle of the traction drawing frame, embedded connecting grooves are formed in the front side and the rear side of the central mounting groove, and threaded sleeves are arranged on the outer sides of the embedded connecting grooves;
the energy storage impact mechanism comprises an impact guide rod, the front side and the rear side of the impact guide rod are respectively provided with an embedded connecting block, an impact block is nested in the middle of the impact guide rod, the center of the impact block is provided with a central sliding sleeve, the impact block is connected with the impact guide rod in a sliding mode through the central sliding sleeve, and the front side of the impact block is provided with a force storage spring;
the impact guide rod is connected with the traction drawing frame through the embedded connecting block and the embedded connecting groove, the size of the embedded connecting block is matched with that of the embedded connecting groove, the size of the impact guide rod is matched with that of the central mounting groove, a connecting thread is arranged on the outer side of the embedded connecting block, and the threaded sleeve is rotatably connected with the embedded connecting block through the connecting thread;
the left side and the right side of the impact block are both provided with pressing baffles, the left side and the right side of the central mounting groove are both provided with a force accumulating rotating wheel, a central rotating shaft is arranged at the center of the force accumulating rotating wheel, the force accumulating rotating wheel is rotatably connected with the traction drawing frame through the central rotating shaft, the inner side surface of the force accumulating rotating wheel is vertically provided with a linkage pressure rod, the outer side of the linkage pressure rod is nested and rotatably provided with a pressure rod rotating sleeve, and the outer end of the central rotating shaft is provided with a rotating handle;
the linkage pressure lever is contacted with the side surface of the pressure baffle plate through the pressure lever rotating sleeve.
2. The auxiliary intramedullary nail extraction device for arm fracture as claimed in claim 1, wherein a locking knob is provided in the middle of the adjusting sliding sleeve, the C-shaped hooping frames are symmetrically arranged about the vertical center line of the arm-tying frame, the C-shaped hooping frames can be mutually buckled into a complete ring structure through the rotation of the closing rotating shaft, the top end of the C-shaped hooping frame is provided with a locking electromagnet, and the inner side of the C-shaped hooping frame is provided with a tying air bag.
3. The intramedullary nail auxiliary extraction device for arm fracture as claimed in claim 1, wherein the connecting spherical shell and the connecting spherical head are mutually matched in size, and the fixing attraction block is made of magnetic material.
4. The auxiliary extraction device for intramedullary nails for arm fractures as claimed in claim 1, wherein a locking sleeve is vertically arranged in the middle of the connecting sliding sleeve, a locking latch is slidably arranged inside the locking sleeve in a nested manner, an inclined guide surface is arranged behind the bottom end of the locking latch, a locking spring is arranged at the top end of the locking latch, and an unlocking shift lever is arranged in the middle of the locking latch.
5. The intramedullary nail auxiliary extraction device for arm fracture as claimed in claim 4, wherein a unidirectional rack is uniformly arranged in the middle of the nail pulling guide rod, and the locking latch and the unidirectional rack are mutually matched in size.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110762155.9A CN113456206B (en) | 2021-07-06 | 2021-07-06 | Auxiliary intramedullary nail taking-out device for arm fracture |
| CN202210095547.9A CN114431946A (en) | 2021-07-06 | 2021-07-06 | Intramedullary nail extraction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110762155.9A CN113456206B (en) | 2021-07-06 | 2021-07-06 | Auxiliary intramedullary nail taking-out device for arm fracture |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210095547.9A Division CN114431946A (en) | 2021-07-06 | 2021-07-06 | Intramedullary nail extraction method |
Publications (2)
| Publication Number | Publication Date |
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| CN113456206A CN113456206A (en) | 2021-10-01 |
| CN113456206B true CN113456206B (en) | 2022-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210095547.9A Withdrawn CN114431946A (en) | 2021-07-06 | 2021-07-06 | Intramedullary nail extraction method |
| CN202110762155.9A Active CN113456206B (en) | 2021-07-06 | 2021-07-06 | Auxiliary intramedullary nail taking-out device for arm fracture |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210095547.9A Withdrawn CN114431946A (en) | 2021-07-06 | 2021-07-06 | Intramedullary nail extraction method |
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| CN (2) | CN114431946A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114041867B (en) * | 2021-12-13 | 2023-07-21 | 北京力达康科技有限公司 | Nail puller with hammering function |
| CN117100392B (en) * | 2023-10-24 | 2024-02-13 | 江苏若尧医疗装备有限公司 | Clamping device and application thereof in surgical robot arm |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7708739B2 (en) * | 2005-03-31 | 2010-05-04 | Depuy Products, Inc. | Controlled force impacting device |
| WO2014194965A1 (en) * | 2013-06-07 | 2014-12-11 | Stryker Trauma Gmbh | Targeting adjustment system for an intramedullary nail |
| CN104739484B (en) * | 2015-04-13 | 2017-01-11 | 温州康诺克医疗器械有限公司 | Multi-purpose bone harvesting device |
| US10492803B2 (en) * | 2016-09-22 | 2019-12-03 | Globus Medical, Inc. | Systems and methods for intramedullary nail implantation |
| CN109199567B (en) * | 2018-10-29 | 2021-02-12 | 于跃强 | Bone nail extractor for four limbs |
| CN109199568A (en) * | 2018-11-09 | 2019-01-15 | 张云峰 | A kind of orthopedic nail extractor convenient for taking out broken nail |
| CN109998665A (en) * | 2019-05-06 | 2019-07-12 | 李若东 | Bone nail withdrawing device after a kind of operation |
| CN111956314B (en) * | 2020-09-01 | 2021-08-31 | 河南省中医院（河南中医药大学第二附属医院） | Traction recovery device for orthopedic nursing |
-
2021
- 2021-07-06 CN CN202210095547.9A patent/CN114431946A/en not_active Withdrawn
- 2021-07-06 CN CN202110762155.9A patent/CN113456206B/en active Active
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| CN114431946A (en) | 2022-05-06 |
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