CN218356348U - Orthopedic alignment restorer - Google Patents

Abstract

The utility model provides an orthopedic alignment restorer, which comprises a main body, a pressure rod piece, a driving mechanism and a stop mechanism; the main body is provided with a connecting part which is used for connecting a pushing rod piece, and the pushing rod piece is provided with a pushing end; the pressurizing rod piece is movably arranged on the main body and provided with a first end part and a second end part, the pushing end and the first end part are both positioned on a first coordinate axis, and on the first coordinate axis, the first end part is positioned on one side of the pushing end in the negative direction, and the projection of the second end part on the first coordinate axis is positioned on one side of the pushing end in the positive direction; the driving mechanism is used for driving the first end part to move approximately along the positive direction of the first coordinate axis so as to reduce the distance between the first end part and the pushing end; the stop mechanism is used for limiting the movement of the first end part along the negative direction of the first coordinate axis. The orthopedic alignment restorer can apply force to bones from one side of the bones, which is back to an operator, to restore the bones, and can automatically maintain the current restoration state.

Description

Orthopedic alignment restorer

Technical Field

The embodiment of the utility model provides a relate to medical instrument technical field, especially relate to an orthopedics is to line restorer.

Background

In the orthopedic trauma surgery, resetting and guiding a needle are very important. The purpose of the reduction is to reduce the fracture to a normal position to restore the normal shape of the shaft and to ensure that the upper and lower joints are in the normal position. The guide pin is often used as a positioning and guiding instrument to fix a bone block by matching with a hollow screw or a kirschner wire. The two steps are usually used as the first two steps of an orthopedic operation, which are related to success or failure of the subsequent operation. Conventional reduction tools typically require that the fracture block be pushed against the reduction tool or that the fracture block be held from the side to achieve the reduction of the fracture block. However, when the fracture block is located on the back of the backbone and the back of the backbone is not convenient for opening, the conventional reduction tool is often difficult to perform, which is not favorable for accurate reduction, and the operation can be smoothly completed only by forming a large opening under many circumstances, which is not favorable for postoperative recovery.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned problems existing in the prior art, the embodiment of the present invention provides an orthopedic alignment restorer, which not only can restore the damaged bone or drive a needle-like instrument into the damaged bone by applying force to the bone from the side of the bone back to the operator, but also can automatically maintain the current restoration state or the driving depth.

In order to solve the above problem, the embodiment of the present invention provides a technical solution:

an orthopedic alignment restorer, comprising:

the main body is provided with a connecting part, the connecting part is used for connecting a top push rod piece, and the top push rod piece is provided with a top pushing end;

the pressure rod piece is movably arranged on the main body and provided with a first end part and a second end part, the pushing end and the first end part are both positioned on a first coordinate axis, the pushing end is positioned on one side of the pushing end in the negative direction on the first coordinate axis, and the projection of the second end part on the first coordinate axis is positioned on one side of the pushing end in the positive direction;

the driving mechanism is arranged on the main body and connected with the pressurizing rod piece, and is used for driving the first end part to move approximately along the positive direction of the first coordinate axis so as to reduce the distance between the first end part and the pushing end;

and the stop mechanism is arranged on the main body and connected with the pressurizing rod piece, and is used for limiting the first end part to move along the negative direction of the first coordinate axis.

In some embodiments, a plurality of tooth grooves are sequentially arranged on the pressure rod piece along a direction parallel to the first coordinate axis;

the driving mechanism comprises a first ratchet and is used for pushing the tooth socket through the first ratchet so as to drive the pressurizing rod to move along the positive direction of the first coordinate axis;

the stop mechanism comprises a second ratchet and is used for stopping the tooth grooves through the second ratchet so as to limit the pressure rod piece to move along the negative direction of the first coordinate axis.

In some embodiments, the driving mechanism further includes a trigger, the trigger is rotatably connected to the main body, the first ratchet is connected to the trigger, and the trigger is configured to drive the first ratchet to swing during rotation, so as to drive the pressing rod to move along the positive direction of the first coordinate axis.

In some embodiments, the first ratchet tooth is rotatably connected to the trigger, and a first elastic member is connected between the first ratchet tooth and the trigger, and the first elastic member is used for applying a first elastic force to the first ratchet tooth, so that the first ratchet tooth has a movement trend towards the positive direction of the first coordinate axis.

In some embodiments, a handle opposite to the trigger is arranged on the main body, and the trigger is used for rotating towards the handle to drive the pressure rod to move along the positive direction of the first coordinate axis;

and a second elastic piece is arranged between the trigger and the handle and used for applying a second elastic force which enables the trigger to reset after rotating towards the handle to the trigger.

In some embodiments, the stopping mechanism further includes a third elastic member, the second ratchet is rotatably connected to the main body and is engaged with the tooth groove, the second ratchet is capable of being unscrewed from the tooth groove when the pressure rod moves in the positive direction of the first coordinate axis, the third elastic member is connected between the main body and the second ratchet, and the third elastic member is configured to apply a third elastic force to the second ratchet to reset the second ratchet after being unscrewed.

In some embodiments, the pressing lever has a first side surface provided with the splines and a second side surface not provided with the splines, and is configured to be rotatable to the second side surface opposite to the second ratchet so that the stopper mechanism releases the restriction of the pressing lever.

In some embodiments, the main body is provided with a first through hole, the first through hole is provided with a limit groove therein, the pressure rod passes through the first through hole, and the pressure rod is provided with an elastic pin configured to be inserted into the limit groove when the first side face opposes the first ratchet or the second side face opposes the second ratchet.

In some embodiments, the pressing lever includes a main lever extending in a direction parallel to the first coordinate axis and provided with the toothed groove, and a jaw extending to be opposite to the pushing end and forming the first end portion.

In some embodiments, the first end portion is provided with a depth-limiting groove opposite to the pushing end; or alternatively

The pressurizing rod piece is provided with scale marks which are continuously distributed along the direction parallel to the first coordinate axis; or alternatively

The connecting portion include along first coordinate axis runs through the second through-hole of main part, and wear to establish the sleeve pipe of second through-hole, the sleeve pipe is used for wearing to establish ejector rod spare and guide ejector rod spare is followed first coordinate axis extends.

The utility model discloses orthopedics is to line restorer not only can promote impaired skeleton to impaired skeleton application of force from impaired skeleton one side of operator dorsad, perhaps fix impaired skeleton to nailing needle bar form apparatus in the impaired skeleton, form better effect and the effect of nailing that resets, can maintain current reset state or the nail degree of depth automatically through backstop mechanism moreover, not only be of value to and form better operation effect, operate the gradual change moreover, can reduce the operation degree of difficulty.

Drawings

Fig. 1 is a perspective view of an orthopedic alignment repositor according to an embodiment of the present invention;

fig. 2 is a cross-sectional view of an orthopedic alignment reducer in accordance with an embodiment of the present invention;

FIG. 3 is an enlarged view of a portion A of FIG. 2;

fig. 4 is a partially enlarged view of a portion B in fig. 2.

Description of reference numerals:

100-a body; 110-a housing portion; 111-a first via; 112-a limiting groove; 113-a mounting cavity; 120-a boss; 121-a connecting part; 122-a second via; 123-a sleeve; 130-a handle;

200-pressing the rod piece; 210-main bar; 211-tooth slots; 212-graduation mark; 213-connecting hole; 220-claw clamping; 221-depth limiting groove; 230-a tail cap; 240-elastic pin;

300-a drive mechanism; 310-a trigger; 320-a first ratchet; 330-a first elastic member; 340-a second elastic member;

400-a stop mechanism; 410-a second ratchet; 420-a third elastic member;

500-pushing the rod member;

600-bone.

Detailed Description

For better understanding of the technical solutions of the embodiments of the present invention, the present invention will be described in detail with reference to the accompanying drawings and the detailed description.

The embodiment of the utility model provides an orthopedics is to line restorer, this orthopedics is to line restorer can be used to restoreing impaired skeleton 600, also can be used to fix impaired skeleton 600 to the rod-like apparatus of nail income needle in the impaired skeleton 600. Referring to fig. 1 to 3, an orthopedic alignment restorer according to an embodiment of the present invention includes a main body 100, a pressure rod 200, a driving mechanism 300, and a stopping mechanism 400.

The main body 100 is provided with a connecting part 121, the connecting part 121 is used for connecting a top pushing rod piece 500, and the top pushing rod piece 500 is provided with a top pushing end. In particular implementations, the body 100 may be configured in any shape that is convenient for a medical professional to manipulate. Alternatively, the body 100 may include a housing portion 110, and a mounting cavity 113 may be provided in the housing portion 110, and the mounting cavity 113 may mount various components. Alternatively, the housing portion 110 may be approximately flat and rectangular, and the mounting cavity 113 may be approximately flat and rectangular.

Optionally, the ejector-pusher member 500 is used to push the damaged bone 600 when the orthopedic wire restorer is used to restore the damaged bone 600, and the ejector-pusher member 500 may include a device capable of pushing the damaged bone 600, such as an ejector-pusher. Alternatively, when the orthopedic pair wire reductor is used to fix a damaged bone 600 by driving a needle-like instrument into the damaged bone 600, the ejector rod member 500 may be a needle-like instrument that needs to be driven into the damaged bone 600. For example, the ejector ram 500 includes, but is not limited to, a guide pin, a cannulated screw, a k-wire, and the like.

The pressure rod 200 is movably disposed on the main body 100. Pressure member 200 has first end and second end, the top push end with the first end all is located first coordinate axis, and is in on the first coordinate axis, the first end is located the negative direction one side of top push end, the second end is in projection on the first coordinate axis is located positive direction one side of top push end. That is, the first coordinate axis is a coordinate axis passing through the first end portion and the pushing end portion. Alternatively, the pressure rod member 200 may be connected to the body 100 through a second end portion, or the pressure rod member 200 may be connected to the body 100 through a rod body near the second end portion.

The driving mechanism 300 is disposed on the main body 100 and connected to the pressure rod 200, and the driving mechanism 300 is configured to drive the first end to move substantially along a positive direction of the first coordinate axis, so as to reduce a distance between the first end and the pushing end. Thereby pushing the damaged bone 600 by the first end portion to move in a substantially positive direction of the first coordinate axis for reduction, or by narrowing the interval between the first end portion and the pushing end portion to drive a needle-like instrument as the ejector pusher member 500 into the damaged bone 600.

Optionally, the first end portion moving in the positive direction substantially along the first coordinate axis may include the first end portion moving in the positive direction along the first coordinate axis, and may also include the first end portion moving in a moving direction having an angle smaller than a preset angle with the positive direction along the first coordinate axis.

Alternatively, the first end portion may be linearly movable. For example, the first end portion may be linearly movable along a first coordinate axis. The first end portion is also movable along a curve. For example, the first end portion may move in an arc, and the moving direction of the first end portion may include an angle smaller than a preset angle with respect to the positive direction of the first coordinate axis.

Alternatively, the driving mechanism 300 may be a manual driving mechanism, and the driving mechanism 300 may drive the first end portion to move by an external force applied by an operator. Alternatively, the driving mechanism 300 may be an automatic driving device, and the driving mechanism 300 may include a power member capable of outputting power, such as a driving motor or a telescopic rod, and the first end portion may be driven by the power member to move substantially in the positive direction of the first coordinate axis.

Alternatively, the driving mechanism 300 may be disposed in the mounting cavity 113, or may be partially disposed in the mounting cavity 113. For example, the pressure rod 200 may be configured to pass through the mounting cavity 113. When the driving mechanism 300 is an automatic driving mechanism, the automatic driving mechanism may be disposed in the assembly chamber 113. When the driving mechanism 300 is a manual driving mechanism, a driving end of the manual driving mechanism may extend into the assembling cavity 113 to be in transmission connection with the pressure rod member 200, and an operating end of the manual driving mechanism may extend out of the assembling cavity 113 for an operator to operate.

The stopping mechanism 400 is disposed on the main body 100 and connected to the pressure rod 200, and the stopping mechanism 400 is used for limiting the movement of the first end portion along the negative direction of the first coordinate axis to maintain the current reset state or maintain the current nailing depth. Alternatively, the stop mechanism 400 may limit the movement of the first end portion in the negative direction of the first coordinate axis in various ways. For example, the stopping mechanism 400 may limit the movement of the pressure rod 200 by pushing or snapping, or the stopping mechanism 400 may limit the movement of the pressure rod 200 by friction. Optionally, a stop mechanism 400 may be provided in the assembly cavity 113 to simplify the external structure of the orthopedic alignment reducer.

Optionally, the main body 100, the pressure rod 200, the driving mechanism 300, and the stopping mechanism 400 may be made of high temperature and high pressure resistant materials. For example, it may be made of at least one of Polyphenylene sulfone resin (PPSU), polyoxymethylene (POM), polytetrafluoroethylene (PTFE), polypropylene (PP), or aluminum alloy. The orthopedic alignment restorer has better high temperature and high pressure resistance, so as to meet the use requirements of medical instruments requiring high temperature and high pressure sterilization.

Optionally, in actual use, the ejection end may abut against a side of the damaged bone 600 facing the operator, the first end of the pressure rod 200 may extend to a side of the damaged bone 600 facing away from the operator, and the first end abuts against a side of the damaged bone 600 facing away from the operator, and a space for placing the damaged bone 600 is formed between the first end and the ejection end, as shown in fig. 3. During the reduction operation, the first end portion can push the damaged bone 600 to move substantially in the positive direction of the first coordinate axis, so as to reduce the damaged bone 600. When the needle-like member is driven into the damaged bone 600, the needle-like member can be driven into the damaged bone 600 by narrowing the space between the first end portion and the pushing end. After the pressure rod 200 stops moving, the stop mechanism 400 can limit the first end portion to move along the negative direction of the first coordinate axis, so that the first end portion and the pushing end keep the current relative position, and further keep the current reset state or the current nailing depth.

The utility model discloses orthopedics is to line restorer, not only can follow impaired skeleton 600 one side of operator dorsad to impaired skeleton 600 application of force, promote impaired skeleton 600 and reset, perhaps fix impaired skeleton 600 to the rod-like apparatus of nail-inserting needle in impaired skeleton 600, form better reset effect and nail and go into the effect, and can maintain current reset state or the nail degree of depth of entry automatically through backstop mechanism 400, not only be of value to and form better operation effect, and the operation gradual change, can reduce the operation degree of difficulty.

In some embodiments, as shown in fig. 2, a plurality of slots 211 are sequentially formed on the pressure rod 200 along a direction parallel to the first coordinate axis. The driving mechanism 300 includes a first ratchet 320, and the driving mechanism 300 is configured to push the spline 211 through the first ratchet 320 to drive the pressing rod 200 to move in the positive direction of the first coordinate axis. The stopping mechanism 400 includes a second ratchet 410, and the stopping mechanism 400 is used for stopping the toothed slot 211 through the second ratchet 410 to limit the negative direction movement of the pressurizing rod member 200 along the first coordinate axis. The first ratchet 320 and the tooth groove 211 can be matched to push the pressure rod member 200 to stably move in the positive direction along the first coordinate axis, the second ratchet 410 and the tooth groove 211 can be matched to reliably limit the pressure rod member 200 to move in the negative direction along the first coordinate axis, and the driving mechanism 300 and the stopping mechanism 400 share the tooth groove 211 to realize the movement and stopping of the pressure rod member 200, so that the structure is facilitated to be simplified.

As shown in fig. 1 and 2, in some embodiments, the pressing lever 200 includes a main lever 210 and a jaw 220, the main lever 210 extends in a direction parallel to the first coordinate axis, the spline 211 is disposed on the main lever 210, one end of the main lever 210 forms the second end portion, the other end of the main lever 210 is detachably connected to one end of the jaw 220, and the other end of the jaw 220 extends to be opposite to the pushing end and forms the first end portion. The tooth grooves 211 are provided on the main lever 210 extending in a direction parallel to the first coordinate axis, so that the driving mechanism 300 can push the pressurizing lever 200 to stably move in the positive direction of the first coordinate axis through the tooth grooves 211. By providing the jaws 220, the first end portion can be arranged to pass around the damaged bone 600 and extend to the side of the damaged bone 600 facing away from the operator, so that a force can be applied to the damaged bone 600 from this side. In practical use, the clamping jaws 220 in various shapes can be configured, and the proper clamping jaws 220 can be selected according to actual operation requirements to be connected with the main rod 210, so that a better treatment effect can be formed, and the application scene of the orthopedic alignment restorer can be expanded.

Optionally, a clamping groove may be formed in an end surface of the other end of the main rod 210, and a clamping pin may be disposed at one end of the clamping jaw 220, so that the clamping pin is clamped in the clamping groove, and the main rod 210 and the clamping jaw 220 can be detachably connected. It will be appreciated that the above-described detachable connection structure is merely exemplary, and in particular implementations, the main lever 210 may be detachably connected to the jaws 220 through various structures.

Alternatively, the jaw 220 may be substantially C-shaped to allow the first end portion to bypass the damaged bone 600 and provide sufficient space for the damaged bone 600 to rest on.

Alternatively, the main body 100 may be provided with a first through hole 111 extending in a direction parallel to the first coordinate axis, and the main lever 210 may be inserted through the first through hole 111 and configured to be movable along the first through hole 111. Under the guidance of the first through hole 111, the main rod 210 can accurately move in a direction parallel to the first coordinate axis, thereby accurately moving the first end portion in a positive direction of the first coordinate axis.

In some embodiments, the driving mechanism 300 further includes a trigger 310, the trigger 310 is rotatably connected to the main body 100, the first ratchet 320 is connected to the trigger 310, and the trigger 310 is configured to swing the first ratchet 320 during rotation to move the pressure rod 200 in the positive direction of the first coordinate axis. During the use, the operator can drive trigger 310 to rotate by manually holding trigger 310, and trigger 310 can drive first ratchet 320 to swing in the rotating process, so as to drive pressure rod piece 200 to move.

Optionally, the first through hole 111 may penetrate the assembly cavity 113, and the main rod 210 may penetrate the assembly cavity 113 through the first through hole 111. One end of trigger 310 may extend into mounting cavity 113 from, for example, the bottom of housing portion 110 and may be hinged to housing portion 110, and the other end of trigger 310 may extend out of mounting cavity 113 for operator manipulation. The first ratchet tooth 320 may be disposed in the assembly chamber 113 and coupled to a position near one end of the trigger 310, and the first ratchet tooth 320 is engaged with the tooth groove 211 of the main lever 210.

It will be appreciated that the drive mechanism 300 is not limited to driving movement of the first ratchet tooth 320 by the trigger 310. For example, the drive mechanism 300 can also include a wheel-like member rotatably coupled to the body 100, and the first ratchet tooth 320 can be coupled to the wheel-like member. Even with the trigger 310, the trigger 310 is not limited to being rotatably connected to the body. For example, the trigger 310 may be movably disposed on the main body 100 in a direction parallel to the first coordinate axis, and the trigger 310 may move the first ratchet 320 in the positive direction of the first coordinate axis to move the pressure rod 200 in the positive direction of the first coordinate axis.

In some embodiments, the first ratchet 320 is rotatably connected to the trigger 310, a first elastic member 330 is connected between the first ratchet 320 and the trigger 310, and the first elastic member 330 is used for applying a first elastic force to the first ratchet 320, so that the first ratchet 320 has a tendency to move in a positive direction of the first coordinate axis. Thus, when an operator holds the trigger 310, the first ratchet 320 can be driven to swing, and the first ratchet 320 can push the ratchet to the positive direction of the first coordinate axis under the action of the elastic force exerted by the first elastic member 330, so as to push the pressing rod member 200 to move to the positive direction of the first coordinate axis. During the reverse rotation reset process of the trigger 310, the first ratchet 320 is driven to swing reversely, and the first ratchet 320 can be pulled out from the tooth slot 211. However, under the action of the first elastic force, the first ratchet 320 can rotate after being pulled out and is clamped with the toothed slot 211, so that the operator can directly drive the pressing rod member 200 to move when gripping the trigger 310 again, and connection failure between the first ratchet 320 and the toothed slot 211 is avoided.

Alternatively, the first ratchet 320 may be rotatably connected to the trigger 310 by a pin, and the first elastic member 330 may include, for example, a torsion spring, which may be sleeved on the pin, and both ends of the torsion spring may be respectively connected to the trigger 310 and the first ratchet 320, and the torsion spring may be configured to be in a compressed state and can be further compressed when the trigger 310 is squeezed by an operator, so that the first elastic force is gradually increased to form a sufficient pushing force to push the compression rod member 200 to move. Moreover, the first elastic force is reduced in the resetting process of the trigger 310, and on the basis of ensuring that the first ratchet 320 can rotate to be clamped with the tooth slot 211, the first ratchet 320 can smoothly fall out of the tooth slot 211 in the reverse swinging process. Of course, the first elastic member 330 is not limited to a torsion spring, and various elastic members such as a coil spring and a spring plate may be used.

Alternatively, the first ratchet teeth 320 may be wedge-shaped, the first ratchet teeth 320 may have one face facing a positive direction of the first coordinate axis and another face facing a negative direction of the first coordinate axis, the one face of the first ratchet teeth 320 may extend in a direction approximately perpendicular to the first coordinate axis, and the another face of the first ratchet teeth 320 may be at an acute angle to the negative direction of the first coordinate axis. Therefore, the pressing rod member 200 can be reliably pushed to move along the positive direction of the first coordinate axis by one surface of the first ratchet 320, and the interference between the other surface of the first ratchet 320 and the tooth slot 211 can be avoided in the process of the reverse swing of the first ratchet 320, which is beneficial for the smooth separation of the first ratchet 320 from the tooth slot 211.

It should be noted that the first ratchet 320 is not limited to being rotatably connected to the trigger 310, and the first ratchet 320 may be connected to the trigger 310 in other movable manners. For example, the first ratchet 320 may be movably coupled to the trigger 310.

In some embodiments, the handle 130 is disposed on the main body 100 opposite to the trigger 310, and the trigger 310 is configured to rotate toward the handle 130 to move the pressure rod 200 along the positive direction of the first coordinate axis. When in use, an operator can hold the handle 130 and the trigger 310 at the same time, and the pressing rod member 200 can be driven to move by holding and pressing the trigger 310 so as to execute resetting operation and nailing operation, which is beneficial to improving the operability of the orthopedic alignment repositor.

Optionally, a second elastic member 340 may be disposed between the trigger 310 and the handle 130, and the second elastic member 340 is configured to apply a second elastic force to the trigger 310 to restore the trigger 310 after rotating toward the handle 130. Thus, after the operator releases the trigger 310, the trigger 310 can automatically reset under the action of the second elastic force, which is beneficial to improving the operability and the usability of the orthopedic alignment restorer.

Optionally, the second elastic element 340 may be another torsion spring, the handle 130 may be provided with another pin, the other torsion spring may be sleeved on the other pin, one end of the other torsion spring may abut against the trigger 310, and the other end of the other torsion spring may abut against the handle 130. Obviously, the second elastic member 340 is not limited to the torsion spring, and other types of elastic members may be used.

In some embodiments, the stopping mechanism 400 further comprises a third elastic member 420, the second ratchet 410 is rotatably connected to the main body 100 and is engaged with the toothed slot 211, the second ratchet 410 can be rotated out of the toothed slot 211 when the pressure lever 200 moves in the positive direction of the first coordinate axis, the third elastic member 420 is connected between the main body 100 and the second ratchet 410, and the third elastic member 420 is used for applying a third elastic force to the second ratchet 410 to reset the second ratchet 410 after being rotated out. That is, when the pressing rod member 200 moves in the positive direction of the first coordinate axis, the second ratchet 410 can be driven to be unscrewed from the toothed slot 211, and the second ratchet 410 does not stop the toothed slot 211 and does not limit the movement of the pressing rod member 200. After the second ratchet 410 is unscrewed from the toothed slot 211, the second ratchet can be reset to be clamped with the toothed slot 211 under the action of a third elastic force, so that when the pressing rod member 200 stops moving, the second ratchet 410 can immediately form a stopping relation with the toothed slot 211 to limit the movement of the pressing rod member 200 along the negative direction of the first coordinate axis, and the stopping mechanism 400 has high reliability.

Alternatively, the root end of the second ratchet 410 may be rotatably coupled to the main body 100, the tip end of the second ratchet 410 may be engaged with the teeth groove 211, and the rotational radius of the second ratchet 410 may be greater than the distance between the rotational center of the second ratchet 410 and the pressing lever 200. That is, a distance between the rotation center of the second ratchet 410 and the tip of the second ratchet 410 may be greater than a distance between the rotation center of the second ratchet 410 and the pressing lever 200.

Alternatively, the tip of the second ratchet 410 may have a wedge shape, the second ratchet 410 may have one face facing a positive direction of the first coordinate axis and the other face facing a negative direction of the first coordinate axis, one face of the second ratchet 410 may extend in a direction approximately perpendicular to the first coordinate axis, and the other face of the second ratchet 410 may have an acute angle with the negative direction of the first coordinate axis. In this manner, it is facilitated that the second ratchet teeth 410 are stopped from the teeth grooves 211 and also the second ratchet teeth 410 are rotated out of the teeth grooves 211 when the pressurizing rod member 200 moves in the positive direction of the first coordinate axis.

Alternatively, the longitudinal section of the slot 211 may be wedge-shaped, the slot 211 may have one side slot wall facing the square of the first coordinate axis and the other side slot wall facing the negative direction of the first coordinate axis, and an angle between the one side slot wall of the slot 211 and the positive direction of the first coordinate axis may be greater than an angle between the other side slot wall of the slot 211 and the negative direction of the first coordinate axis. In this way, it is not only advantageous for the first ratchet teeth 320 and the second ratchet teeth 410 to push the pressing rod member 200 to move or stop the pressing rod member 200 by pushing the other side slot wall of the tooth slot 211, but also advantageous for the first ratchet teeth 320 and the second ratchet teeth 410 to be released from the tooth slot 211.

In some embodiments, the pressure lever 200 has a first side surface provided with the splines 211 and a second side surface not provided with the splines 211, and the pressure lever 200 is configured to be rotated to the second side surface opposite to the second ratchet 410 so that the stopping mechanism 400 releases the restriction of the pressure lever 200. Before or after the operation, the pressure rod 200 can be rotated to make the second side face opposite to the second ratchet 410, and the stop mechanism 400 releases the limitation on the pressure rod 200, so that the pressure rod 200 can be pushed to move towards the negative direction of the second coordinate axis to increase the distance between the first end part and the pushing end.

Alternatively, for example, the main rod 210 of the pressing rod 200 is cylindrical, the circumferential surface opposite to the first central angle may be used as the first side surface, and the circumferential surface opposite to the second central angle may be used as the second side surface, and the first central angle may be configured to be much larger than the second central angle.

Alternatively, in the case where the main lever 210 penetrates the first through hole 111, the main lever 210 may be configured to be capable of moving in a length direction of the first through hole 111 and rotating around an axis of the first through hole 111.

As shown in fig. 2 and 4, in some embodiments, a limiting groove 112 is formed in the first through hole 111, and an elastic pin 240 is formed on the pressure rod 200, wherein the elastic pin 240 is configured to be inserted into the limiting groove 112 when the first side surface is opposite to the first ratchet 320 or the second side surface is opposite to the second ratchet 410. Alternatively, two retaining grooves 112 may be provided, one retaining groove 112 being adapted to engage with the resilient pin 240 when the first side faces oppose the first ratchet teeth 320, and the other retaining groove 112 being adapted to engage with the resilient pin 240 when the second side faces oppose the second ratchet teeth 410.

When the pushing rod piece is used, the pressing rod piece 200 can be rotated until the elastic pin 240 is embedded into the other limiting groove 112, at the moment, the second side face is opposite to the second ratchet 410, the tooth groove 211 is separated from the second ratchet 410, and the distance between the first end part and the pushing end part can be adjusted. Thereafter, the pressing rod 200 may be rotated until the elastic pin 240 is inserted into the one of the stopper grooves 112, at which time the first ratchet 320 is just opposite to the tooth groove 211. The operator can be provided with a stop feeling by the elastic pin 240 and the stopper groove 112 cooperating with each other, and the operator is reminded that the first ratchet teeth 320 have been engaged with the teeth grooves 211 or the teeth grooves 211 have been moved away from the second ratchet teeth 410. Of course, in specific implementation, any one of the two limiting grooves 112 may be selectively arranged according to actual needs, or two of the two limiting grooves may be simultaneously arranged.

Alternatively, the pressurizing rod member 200 may be provided with a coupling hole 213 extending in a diameter direction, the coupling hole 213 may penetrate to the circumferential surface of the pressurizing rod member 200, and the elastic pin 240 may be fitted into the coupling hole 213 and configured to be capable of protruding through the coupling hole 213, as shown in fig. 4. Alternatively, the resilient pin 240 may be formed by, for example, a wave ball screw.

Alternatively, the limiting groove 112 may extend in a direction parallel to the first coordinate axis, so that the limiting groove 112 does not interfere with the positive direction movement of the pressure rod 200 along the first coordinate axis.

As shown in fig. 3, in some embodiments, the first end portion is provided with a depth-limiting groove 221 opposite to the pushing end. In this way, when the nailing operation is performed, the pushing end can be inserted into the depth-restricting groove 221 after the needle-like instrument passes through the damaged bone 600, and the needle-like instrument can be prevented from slipping off from the side of the first end portion to stab other body tissues of the patient.

In some embodiments, the pressure rod 200 is provided with graduations 212 continuously distributed along a direction parallel to the first coordinate axis, as shown in fig. 2. In this way, the operator can clearly know the moving distance of the pressure rod member 200 by observing the scale mark 212, and further know, for example, the reset distance or the nailing depth. Alternatively, the graduation marks 212 may be provided on the circumferential surface of the main lever 210. Optionally, an identifier for identifying the tick mark 212 can also be provided at a position near the tick mark 212, including but not limited to numbers, words, or warning symbols, etc. For example, a number of numbers may be spaced sequentially along the tick mark 212 to identify the tick mark.

In some embodiments, the compression link 200 may further include a tail cap 230, and the tail cap 230 may be coupled at one end of the primary rod 210. When the main rod 210 moves in the negative direction of the first coordinate axis and one end of the main rod 210 is about to retract into the first through hole 111, the tail cap 230 abuts against the outer surface of the housing 110 to limit the main rod 210 from further moving in the negative direction of the first coordinate axis, thereby preventing connection failure between the main rod 210 and the main body 100 due to the fact that one end of the main rod 210 retracts into the first through hole 111.

In some embodiments, the connecting portion 121 includes a second through hole 122 penetrating the main body 100 along the first coordinate axis, and a bushing 123 penetrating the second through hole 122, the bushing 123 being used for penetrating the ejector ram 500 and guiding the ejector ram 500 to extend along the first coordinate axis. Thus, the ejector rod piece 500 can be ensured to eject the skeleton 600 or be nailed into the skeleton 600 along the negative direction of the first coordinate axis, and the action direction of the ejector rod piece 500 can be accurately controlled. When the ejector push rod piece 500 is used, various types of sleeves 123 can be configured according to the diameter of the ejector push rod piece 500, the outer diameter of each sleeve 123 can be the same as the inner diameter of each second through hole 122, and the inner diameter of each sleeve 123 can be matched with the outer diameter of the ejector push rod piece 500. During operation, the proper ejector rod 500 can be selected according to operation requirements, and the matched sleeve is selected to fix the ejector rod 500 at the second through hole 122, so that a better operation effect is realized. Alternatively, a boss 120 may be provided on the top of the housing part 110, and a second through hole 122 penetrating the boss 120 in the first coordinate axis direction may be provided on the boss 120.

The utility model discloses orthopedics is to line restorer, not only can follow impaired skeleton 600 one side of operator dorsad to impaired skeleton 600 application of force, promote impaired skeleton 600 and reset, perhaps fix impaired skeleton 600 to the rod-like apparatus of nail-inserting needle in impaired skeleton 600, form better reset effect and nail and go into the effect, and can maintain current reset state or the nail degree of depth of entry automatically through backstop mechanism 400, not only be of value to and form better operation effect, and the operation gradual change, can reduce the operation degree of difficulty.

The above embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and the protection scope of the present invention is defined by the claims. Various modifications and equivalents of the invention can be made by those skilled in the art within the spirit and scope of the invention, and such modifications and equivalents should also be considered as falling within the scope of the invention.

Claims (10)

1. An orthopedic alignment restorer, comprising:

the main body is provided with a connecting part, the connecting part is used for connecting a top push rod piece, and the top push rod piece is provided with a top pushing end;

the pressurizing rod piece is movably arranged on the main body and provided with a first end part and a second end part, the pushing end and the first end part are both positioned on a first coordinate axis, the first end part is positioned on one side of the pushing end in the negative direction, and the projection of the second end part on the first coordinate axis is positioned on one side of the pushing end in the positive direction;

the driving mechanism is arranged on the main body and connected with the pressurizing rod piece, and is used for driving the first end part to move approximately along the positive direction of the first coordinate axis so as to reduce the distance between the first end part and the pushing end;

and the stop mechanism is arranged on the main body and connected with the pressurizing rod piece, and is used for limiting the first end part to move along the negative direction of the first coordinate axis.

2. The orthopedic alignment restorer of claim 1, wherein a plurality of tooth grooves are sequentially arranged on the pressure rod member along a direction parallel to the first coordinate axis;

the driving mechanism comprises a first ratchet and is used for pushing the tooth grooves through the first ratchet so as to drive the pressure rod piece to move along the positive direction of the first coordinate axis;

the stop mechanism comprises a second ratchet and is used for stopping the tooth grooves through the second ratchet so as to limit the pressure rod piece to move along the negative direction of the first coordinate axis.

3. The orthopedic alignment restorer of claim 2, wherein the driving mechanism further comprises a trigger rotatably connected to the main body, the first ratchet is connected to the trigger, and the trigger is configured to drive the first ratchet to swing during rotation to drive the pressing rod to move along the positive direction of the first coordinate axis.

4. An orthopaedic alignment restorer according to claim 3, wherein the first ratchet tooth is rotatably connected to the trigger, a first resilient member is connected between the first ratchet tooth and the trigger for applying a first resilient force to the first ratchet tooth tending to move the first ratchet tooth in the positive direction of the first coordinate axis.

5. The orthopedic alignment restorer of claim 3, wherein a handle is provided on the main body opposite to the trigger, the trigger is configured to rotate towards the handle to drive the pressure rod to move in a positive direction of the first coordinate axis;

and a second elastic piece is arranged between the trigger and the handle and used for applying a second elastic force which enables the trigger to reset after rotating towards the handle to the trigger.

6. The orthopedic alignment restorer of claim 2, wherein the stopping mechanism further comprises a third elastic member, the second ratchet is rotatably connected to the main body and is engaged with the tooth groove, the second ratchet can be unscrewed from the tooth groove when the pressure rod moves along the positive direction of the first coordinate axis, the third elastic member is connected between the main body and the second ratchet, and the third elastic member is used for applying a third elastic force to the second ratchet to restore the second ratchet after being unscrewed.

7. The orthopedic alignment restorer of claim 2, wherein the pressure lever member has a first side provided with the splines and a second side not provided with the splines, the pressure lever member being configured to be rotatable to the second side opposite the second ratchet to allow the stopping mechanism to release the restriction of the pressure lever member.

8. The orthopedic alignment restorer of claim 7, wherein the main body is provided with a first through hole, a limiting groove is arranged in the first through hole, the pressure rod passes through the first through hole, and an elastic pin is arranged on the pressure rod and is configured to be embedded in the limiting groove when the first side face opposes the first ratchet or when the second side face opposes the second ratchet.

9. The orthopedic alignment restorer of claim 2, wherein the pressing rod member comprises a main rod and a jaw, the main rod extends in a direction parallel to the first coordinate axis and is provided with the tooth socket, one end of the main rod forms the second end portion, the other end of the main rod is detachably connected with one end of the jaw, and the other end of the jaw extends to be opposite to the pushing end and forms the first end portion.

10. The orthopedic alignment restorer of claim 1, wherein the first end portion is provided with a depth-limiting groove opposite to the pushing end; or

The pressurizing rod piece is provided with scale marks which are continuously distributed along the direction parallel to the first coordinate axis; or alternatively

The connecting portion include along first coordinate axis runs through the second through-hole of main part to and wear to establish the sleeve pipe of second through-hole, the sleeve pipe is used for wearing to establish ejector push rod spare and guide ejector push rod spare is followed first coordinate axis extends.

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