CN112826577A - Ball interlocking elastic internal fixation device implantation device - Google Patents

Abstract

The invention provides an implantation instrument of a ball-hinged elastic internal fixing device, which comprises a twister, a driver and a depth limiting drill. The handle of the twister is in a hollow hexagonal prism shape, and two longitudinal wire grooves are formed in two sides of the twister. One end of the handle is connected with 2 knotting rods, and the middle part of the handle is outwards convexly bent. The handle and the head of the impactor are assembled and connected by threads, and one end of the head is bifurcated. The depth-limiting drill is provided with a bulge extending towards two sides at a certain distance from the tip end of the drill bit. The apparatus can be used for conveniently and effectively installing, screwing and implanting the ball-twisting type elastic internal fixing device.

Description

Ball-twisting type elastic internal fixing device implantation instrument

Technical Field

The invention belongs to the technical field of fixation of two opposite bone ends with certain elasticity and strength, and particularly relates to a special device for implanting a ball-hinged elastic internal fixation device and a use method thereof.

Background

For fixation of two adjacent parts of bone, for example, the superior tibiofibular joint, the inferior tibiofibular joint, the distal ulnar joint, the sternoclavicular joint, the coracoid clavicle, etc., most of the fixation is now rigid fixation, such as screw-through fixation, etc. Rigid fixation needs to be realized by pulling out the fixture in advance so as to avoid the problems of joint stiffness, screw fracture and the like. When a secondary operation is needed, various problems caused by rigid fixation can be caused. Therefore, the exploration of elastic fixation for fixing the special parts is expected to solve the problems, and the fixation with enough strength for fixing two bone ends is required, and meanwhile, the elastic micromotion in a certain range is allowed, the healing of surrounding soft tissues is improved, and a sufficient mechanical environment is provided. The removal of the internal fixation is avoided, the requirement of early part load is met, and the occurrence of complications is reduced.

The invention aims to provide an apparatus for conveniently implanting a ball-hinged elastic internal fixing device and a using method thereof.

Disclosure of Invention

The invention aims to provide an apparatus for implanting a ball-and-ball-hinged elastic internal fixation device, which can be used for fixing two bone ends needing dynamic pressurization and fixing two bone parts with certain elasticity and strength.

In order to solve the technical problems, the invention adopts the following technical scheme:

the utility model provides an implant apparatus of ball hank formula elasticity internal fixation device, implant apparatus includes hank knotter, drive ware, depth-limiting drill, utilizes above-mentioned structural combination, implants the sclerotin with ball hank formula elasticity internal fixation device.

The ball-knot type elastic internal fixing device implanting instrument is made of metal or alloy and comprises a knot twister, a driver and a depth limiting drill. The twister is divided into a handle and a twisting rod, the handle is hexagonal prism-shaped, the middle part of the handle is provided with a cylindrical hollow part, and two longitudinal wire grooves are arranged on two sides of the handle. One end of the handle is connected with 2 knotting rods which are in a shape of a slender metal rod, one end of each knotting rod is a tip, and the middle parts of the knotting rods are outwards convexly bent. The impactor consists of a handle, a rod and a head, wherein the handle is a disc-shaped expansion part, the rod is connected with the middle part of the handle, one end of the rod is externally threaded, and one end of the head is cylindrical and internally threaded and can be matched with the external threads of the rod; the other end of the head part is in a fork shape. One end of the depth-limiting drill is a cylindrical drill bit, and the certain distance from the tip of the drill bit is a bulge extending towards two sides.

The ball-knot type elastic internal fixation device implantation instrument has the advantages that the handle of the twister is hexagonal prism-shaped, and the middle part of the twister is provided with a cylindrical hollow part.

The ball-knot type elastic internal fixing device is implanted into an appliance, and two longitudinal wire grooves are formed in two sides of a handle of the knotter.

The ball-shaped knotted elastic internal fixation device implantation instrument is characterized in that one end of the knotted rod is a pointed end, and the middle part of the knotted rod is convexly bent outwards.

The ball-and-knot type elastic internal fixing device implantation instrument is characterized in that one end of the impactor rod is externally threaded.

The ball-knot type elastic internal fixing device is implanted into an instrument, and one end of the impactor head is cylindrical and is internally provided with threads.

The ball-knot type elastic internal fixing device is implanted into an instrument, and the other end of the head of the impactor is bifurcated.

The ball-and-socket knotted elastic internal fixing device implanting instrument is characterized in that the depth-limiting drill is provided with a bulge extending towards two sides at a certain distance from the tip of the drill bit.

The ball-knot type elastic internal fixing device implanting instrument is made of metal or alloy.

By utilizing the structure, the ball-twisting elastic internal fixing device can be conveniently implanted.

Compared with the prior art, the invention has the advantages and positive effects that:

the ball-twisting type elastic internal fixing device implanting instrument can conveniently hold, screw and implant the ball-twisting type elastic internal fixing device by utilizing a unique twister and a unique impactor. The tip of the knotting rod is inserted into 2 knotting holes of the knotting bead, the rotation of the knotting rod can be effectively controlled, and the rotating handle is used for tightly twisting the fixing wire to generate larger torque so as to facilitate the tight twisting of the fixing wire. The middle part of the twisted rod is outwards convexly bent, so that a larger operation space is provided. The assembled design of the driver rod and the head is more beneficial to holding and driving the ball riding nail. The ball-knot type elastic internal fixing device implantation instrument is convenient to use, simple to operate and novel and reasonable in design.

Other features and advantages of the present invention will become more apparent from the detailed description of the embodiments of the present invention when taken in conjunction with the accompanying drawings.

Drawings

The invention will be further described with reference to the accompanying drawings and examples, in which:

FIG. 1 is a schematic front view of an embodiment of an implanting apparatus for a ball-hinged elastic internal fixation device according to the present invention;

FIG. 2 is a schematic side view of an embodiment of an implanting apparatus for a ball-hinged internal fixation device according to the present invention;

FIG. 3 is a perspective view of an embodiment of the ball-hinged elastic internal fixation device implantation apparatus according to the present invention;

FIG. 4 is a front view of the twister of the present invention;

FIG. 5 is a side view of the twister of the present invention;

FIG. 6 is a schematic perspective view of the first embodiment of the knotter of the present invention;

FIG. 7 is a schematic perspective view of the second embodiment of the knotter of the present invention;

FIG. 8 is a front view of the driver head of the present invention;

FIG. 9 is a perspective view of the driver head of the present invention;

FIG. 10 is an assembled front view of the handle portion and shaft portion of the driver of the present invention;

FIG. 11 is a schematic diagram of an explosive structure of the impactor of the invention;

fig. 12 is a front view of a depth stop drill according to the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings and examples. It should be understood that the embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

Currently, the international mainstream of fixation of two adjacent bone parts belongs to the category of rigid fixation, such as an upper tibiofibular joint, a lower tibiofibular joint, a distal ulnar joint, a sternoclavicular joint, a coracoid clavicle and the like, but many problems such as joint stiffness, pain, screw fracture and the like can be caused. Therefore, it is important to explore elastic fixation for such specific site fixation. The novel fixing mode can be used for fixing two bone ends which need to be dynamically pressurized, and fixing two positions of bones with certain elasticity and strength can be achieved, and the fixing strength can be adjusted, so that the occurrence probability of complications is reduced. The invention provides an apparatus which can conveniently and effectively implant the ball-hinged elastic internal fixation device and a specific using method thereof.

The following describes an implementation of the present invention with reference to the following embodiments:

referring to fig. 1-3, there is shown a schematic structural diagram of a specific application of an embodiment of a ball-hinged elastic internal fixation device implanting apparatus according to the present invention, which includes ahinge 10, animpactor 20, and a depth-limitingdrill 30, and the ball-hinged elastic internal fixation device is implanted into a bone by using the above structural combination.

As shown in fig. 4-7, theknotter 10 includes ahandle 11 and aknotting rod 12, thehandle 11 is hexagonal prism shaped, a cylindrical throughhole 13 is formed in the middle of thehandle 11, and twolongitudinal wire grooves 14 are formed in two sides of thehandle 11. Theknotting rod 12 comprises two knotting rods which are connected to one end of thehandle 11, theknotting rod 12 is in a shape of a long and thin metal rod, one end of the knotting rod is a tip, and the middle of theknotting rod 12 is in a structure which is convex outwards and bent.

As shown in fig. 8 to 11, theimpactor 20 includes ahandle 21, ashaft 22 and ahead 23, thehandle 21 is a disk-shaped enlarged portion, theshaft 22 is connected to the center of thehandle 21, one end of theshaft 22 has anexternal thread 24, one end of thehead 23 is cylindrical and has aninternal thread 25 matching theexternal thread 24 at one end of theshaft 22, and the other end of thehead 23 is bifurcated.

As shown in fig. 12, thedepth stop drill 30 has acylindrical drill 31 at one end thereof and aprotrusion 32 extending from both sides at a predetermined distance from the tip of the drill.

The ball-twisting elastic internal fixing device can be conveniently and effectively implanted by utilizing the embodiment.

In application, referring to fig. 1-3, two bones needing to be fixed, such as a distal ulnar joint, a tibiofibular joint, a clavicular coracoid process and the like, are exposed and temporarily restored to a relatively ideal anatomical position. (Here, it is explained that in the case where thehinged ball 40 and theriding ball 50 in FIGS. 1-3 are structural parts of the ball-hinged elastic internal fixation device, i.e., structural parts to be implanted using the implanting apparatus of the present invention), a bone hole is drilled at one side of the bone using adepth stop drill 30 to a depth similar to the height of thehinged ball 40, and thehinged ball 40 is placed in the thick hole with its bottom plane inward. Two fixing threads with certain elasticity in the thread grooves on the sides of the twistingbeads 40 are placed in thethread grooves 14 of the handle of thetwister 10, and are temporarily knotted and fixed at the bottom of thehandle 11. 2 tips at one end of the knottingrod 12 are respectively inserted into the knotting holes at the top of the knottingbead 40, and thehandle 11 is rotated clockwise until the fixing thread is screwed down to reach the expected fixing strength. Thehead part 23 of the impactor is forked and inserted into two sides of thebead riding nail 50, thebead riding nail 50 is held, thebead riding nail 50 is placed above the knottingbead 40, two tips of thebead riding nail 50 are positioned on bone surfaces at two sides of a bone hole, and the direction of the two tips is vertical to 2 tips of theknotting device 10. Therod part 22 of the impactor is inserted into the cylindrical throughhole 13 in the middle of thetwister 10, and theexternal thread 24 at one end of the rod part is screwed into theinternal thread 25 at one end of theimpactor head part 23, so that the impactor and the head part are connected. Thedriver handle portion 21 is struck to drive theball riding nail 50 into the bone to a suitable depth, and the square protrusion below the crossbar of theball riding nail 50 is inserted into the square fixing hole at the top of the hingedball 40. And then the fixing wire is knotted and fixed in the grooves at the side and above the cross arm of the bead riding nail to finish the fixation.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (8)

1. The utility model provides an apparatus is implanted to ball hank knot formula elasticity internal fixation device which characterized in that: the implanting instrument comprises a twister, a driver and a depth limiting drill, and the ball twister type elastic internal fixing device is implanted into the bone by utilizing the structural combination.

2. The ball-hinged elastic internal fixation device implantation instrument of claim 1, wherein: the twister comprises a handle and a twisting rod, wherein the handle is hexagonal prism-shaped, and a cylindrical through hole is formed in the middle of the handle.

3. The ball-hinged elastic internal fixation device implantation instrument of claim 2, wherein: the knotting rod comprises two twisting rods which are connected to one end of the handle, the knotting rod is in the shape of a long and thin metal rod, one end of the knotting rod is a pointed end, and the middle of the knotting rod is of an outwards-protruding bending structure.

4. The ball-hinged elastic internal fixation device implantation instrument of claim 2, wherein: two longitudinal wire grooves are formed in two sides of the handle.

5. The ball-hinged elastic internal fixation device implantation instrument of claim 1, wherein: the impactor comprises a handle part, a rod part and a head part, wherein the handle part is a disc-shaped expansion part, the rod part is connected with the center of the handle part, and one end of the rod part is externally provided with a thread.

6. The ball-and-socket elastic internal fixation device implantation instrument of claim 5, wherein: head one end is cylindricly, takes the internal thread, with the external screw thread phase-match of pole portion one end, the head other end is the forked structure.

7. The ball-hinged elastic internal fixation device implantation instrument of claim 1, wherein: one end of the depth limiting drill is a cylindrical drill bit, and the certain distance from the tip end of the drill bit is a bulge extending towards two sides.

8. The ball-hinged elastic internal fixation device implantation instrument of claim 1, wherein: the ball-knot type elastic internal fixing device implantation instrument is made of metal or alloy.

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