CN217310463U - Reciprocating rotation bone round needle rapid needle threading device - Google Patents
Reciprocating rotation bone round needle rapid needle threading device Download PDFInfo
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- CN217310463U CN217310463U CN202220369220.1U CN202220369220U CN217310463U CN 217310463 U CN217310463 U CN 217310463U CN 202220369220 U CN202220369220 U CN 202220369220U CN 217310463 U CN217310463 U CN 217310463U
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Abstract
The application discloses a reciprocating rotation rapid bone round needle threading device which comprises an outer frame body; a first rotating shaft penetrates through the rear wall of the outer frame body, a first connecting block is connected to the inner end of the first rotating shaft, and a connecting rod block is rotatably hinged to the first connecting block; the other end of connecting rod piece rotates to articulate has the second connecting block, is connected with the second pivot on the second connecting block, and wherein, the rear end of second pivot rotates with the back wall of outer frame body to be connected, and the front end of second pivot is worn to establish on the antetheca of outer frame body and is connected with the lock needle piece toward extending outward. The utility model discloses can make the quick reciprocal rotatory cutting of bone circle needle penetrate the sclerotin and fix, shorten the time of threading the needle, can avoid other devices probably to produce the condition of bone splitting, the security is higher.
Description
Technical Field
The utility model belongs to the field of medical equipment, concretely relates to quick needle threading device of reciprocating rotation bone round needle.
Background
Fracture refers to a disease of partial or complete fracture of bone due to trauma or pathology, when treating fracture, the broken end of the displaced bone after fracture is usually restored to normal or close to the original normal position, after fracture reduction, the bone is easy to be displaced again because of its instability, so it should be fixed on the satisfied position by different methods to heal gradually, and the fixing method includes external fixation and internal fixation.
The Kirschner wire (bone round wire) fixation is a common internal fixation method, the Kirschner wire is generally adopted for fixing unstable fractures, the clinical Kirschner wire fixation effect is better for fixing short bones, irregular bones, adjacent joint fractures and across joints, when the Kirschner wire is fixed, one end of the Kirschner wire is firstly required to be installed on a power device, then the power device is started, and then the Kirschner wire is driven into the bone to be fixed.
However, the conventional power plant has the following problems:
1) the electric bone drill rotates continuously and unidirectionally no matter in forward rotation or reverse rotation, and is easy to be involved in hair, fascia and other objects to cause obstruction and injury.
2) The existing vibration torsional pendulum bone saw has small torsional amplitude, the reciprocating rotation vibration angle is generally not more than 10 degrees, and the existing vibration torsional pendulum bone saw is not suitable for bone puncture needles.
3) Nail gun systems allow for rapid needle penetration, but are prone to bone cleavage.
Disclosure of Invention
The utility model aims at providing a quick threading device of reciprocating rotation bone round needle to prior art's not enough for the quick reciprocating rotation cutting of bone round needle penetrates the sclerotin and fixes, shortens the time of threading, can avoid other devices probably to produce the condition of bone splitting, and the security is higher.
In order to accomplish the above object, the utility model adopts the following technical scheme:
a reciprocating rotation bone round needle rapid needle threading device comprises an outer frame body; a first rotating shaft penetrates through the rear wall of the outer frame body, a first connecting block is connected to the inner end of the first rotating shaft, and a connecting rod block is rotatably hinged to the first connecting block;
the other end of connecting rod piece rotates to articulate has the second connecting block, is connected with the second pivot on the second connecting block, and wherein, the rear end of second pivot rotates with the back wall of outer frame body to be connected, and the front end of second pivot is worn to establish on the antetheca of outer frame body and is connected with the lock needle piece toward extending outward.
Preferably, the first connecting block is a strip shape symmetrical about the first rotation axis.
Preferably, the connecting rod block is in an L-shaped lath shape, wherein the end part of the long arm of the connecting rod block is hinged to the first connecting block, and the end part of the short arm is hinged to the second connecting block.
Preferably, a plurality of lightening holes are formed in the connecting rod block.
Preferably, the second connecting block is a lath shape symmetrical about the second rotating shaft.
Preferably, the long arm end and the short arm end of the connecting rod block are both provided with bearing holes, the outer ends of the first connecting block and the second connecting block are both connected with connecting shafts matched with the bearing holes, and the connecting rod block is rotatably hinged with the first connecting block and the second connecting block through the bearing holes.
Preferably, the first rotating shaft is rotatably connected to a rear wall of the outer frame through a bearing.
Preferably, the second rotating shaft is rotatably connected with the rear wall and the front wall of the outer frame body through bearings respectively.
Preferably, the rear wall and the front wall of the outer frame are respectively provided with a bearing fastening seat.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses a set up first pivot, first connecting block, the connecting rod piece, the effect of second pivot and second connecting block, first pivot drives first connecting block rotatory, first connecting block drives connecting rod piece swing back and forth, the connecting rod piece drives the wide-angle back and forth swing of second connecting block, from this the second pivot also follows together to make a round trip to do the swing motion, make the bone round needle round trip to rotate of connection on the lock needle piece, quick threading needle, realize quick fracture is fixed, and this quick threading needle device of reciprocating rotation bone round needle can pass the cortex of bone in short time, avoid the condition that other devices probably produced the bone fracture simultaneously, the security is higher.
Drawings
Fig. 1 is a schematic view of a top view structure of a reciprocating rotary osseous pin rapid threading device provided by the present invention;
fig. 2 is a schematic front view of the outer frame body of the present invention;
fig. 3 is a rear view structural diagram of the outer frame body of the present invention;
FIG. 4 is a schematic structural view of the present invention with the outer frame removed;
fig. 5 is a schematic position diagram of the two reciprocating limits of the rocker block of the present invention;
fig. 6 is a schematic structural view of the outer frame body of the present invention;
FIG. 7 is a schematic view of the structure of the present invention;
wherein the reference numerals are:
1. the device comprises a crank shaft, 2, a crank block, 3, a connecting rod block, 4, a rocker block, 5, a rocker shaft, 6, a bearing fastening seat, 7, an outer frame body, 8, a locking pin block, 9 and a bone round pin.
Detailed Description
In order to make the technical solutions of the present application better understood, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
For easy understanding, please refer to fig. 1 for please, the application provides a reciprocating rotation bone round needle device of puncturing fast, including outer frame 7, outer frame 7 is connected fixedly through dead lever and electronic bone drill handle, for the ease of dismouting, with the detachable connection of outer frame 7 on electronic bone drill's handle, wear to be equipped with first pivot at outer frame 7's rear wall, the inner end of first pivot is connected with first connecting block, it has connecting rod piece 3 to rotate articulated on the first connecting block, design into the lath of L shape with connecting rod piece 3, its long arm end tip is articulated with first connecting block.
Specifically, referring to fig. 3 and 7, the first rotating shaft is a crankshaft 1, a bearing is disposed on the rear wall of the outer frame 7, the crankshaft 1 penetrates through a bearing inner hole on the rear wall of the outer frame 7 in a cantilever manner, a double-bearing arrangement is adopted to ensure the stability of the crankshaft 7, one outer ring of the bearing is fixed on the rear wall of the outer frame 7 by a special bearing fastening seat 6, one end of the crankshaft 1, which penetrates out of the outer frame 7, is connected with a drilling chuck of a common unidirectional rotation electric bone drilling machine, and the crankshaft 1 is driven to rotate by the action of the electric bone drilling machine.
The first connecting block is a crank block 2, in order to reduce eccentric vibration, the crank block 2 is designed to be in a thick plate strip shape symmetrical about the crankshaft 1, a radial screw hole is arranged on the crank block, the crank block is fixedly connected with the crankshaft 1 through a jackscrew, and a small plane is arranged on the shaft to prevent loosening during relative rotation.
The outer end of one side of crank piece 2 is equipped with and rotates articulated connecting axle with connecting rod piece 3, and the connecting axle is connected on the eccentric position of crank piece 2, and the long arm end tip of connecting rod piece 3 is provided with the dead eye, and direct this connecting axle of inserting can couple together crank piece 2 and connecting rod piece 3 in this dead eye during the installation.
The short arm end of connecting rod piece 3 rotates to articulate has the second connecting block, is connected with the second pivot on the second connecting block, and wherein, the rear end of second pivot rotates with the back wall of outer frame body 7 to be connected, and the front end of second pivot is worn to establish on the antetheca of outer frame body 7 and is connected with lock needle piece 8 toward extending outward.
Specifically, referring to fig. 1 and 2, the second connecting block is a rocker block 4, the second rotating shaft is a rocker shaft 5, in order to reduce eccentric vibration, the rocker block 4 is designed to be a plate shape symmetrical to the rocker shaft 5, a connecting shaft is arranged at the outer end of one side of the rocker block 4, the connecting shaft is located at an eccentric position of the outer end of the rocker block 4, a bearing hole is arranged at the end of a short arm of the connecting rod block 3, and the rocker block 4 can be connected together by inserting the connecting shaft into a bearing hole at the end of the short arm of the connecting rod block 3.
In outer frame 7, offer the mounting hole that is used for the installation bearing on one side that is located crankshaft 1 and the same level of crankshaft 1 antetheca and the back wall, both ends wear to establish respectively on the bearing hole around rocker shaft 5, rocker shaft 5 rotates with outer frame 7's antetheca and back wall through these two bearings promptly and is connected, and the front end of rocker shaft 5 stretches out the antetheca about 15mm, be used for connecting lock needle piece 8, the preceding back wall of outer frame 7 sets up bearing fastening seat 6 respectively, be used for both ends to support, guarantee sufficient axial bearing capacity simultaneously, so that resist the strength of wearing the needle.
Referring to fig. 6, the locking pin block 8 is formed in a cylindrical shape, the front end and the rear end of the locking pin block are respectively provided with a coaxial mounting and fixing deep hole, the hole diameter is respectively matched with the rocker shaft 5 and the bone round pin 9, the rear end hole is sleeved on the rocker shaft 5, a screw hole is formed in the rear portion of the cylindrical surface and is fixedly connected to the extending portion of the front end of the rocker shaft 5 through a jackscrew, furthermore, a corresponding small plane is arranged on the shaft to prevent relative rotation and loosening, a screw hole is also formed in the front portion of the cylindrical surface, and the bone round pin 9 is fixedly connected through the jackscrew.
Referring to fig. 4, by means of the relative size design and installation, the crank and rocker mechanism formed by the combination of the crank shaft 1, the crank block 2, the connecting rod block 3, the rocker block 4 and the rocker shaft 5 is reciprocally rotated, and the connecting rod block 3 can rotate the rocker block 4 to two limit positions, so that the rotation of the rocker block 4 reaches a required angle range.
Specifically, as shown in fig. 5, when the crank block 2 rotates clockwise 180 degrees from the upper left corner to the lower right corner under the action of the crank shaft 1, the rocker block 4 also rotates clockwise from the upper left corner to the upper right corner under the action of the connecting rod block 3, the rotating angle a of the rocker block 4 reaches the maximum, the included angle is larger than 120 degrees, and after the crank block 2 rotates over 180 degrees, the rocker block 4 rotates slowly and reversely to the original position, so that the rocker block 4 can be driven to swing back and forth along with the rotation of the crank block 2, and therefore the rocker shaft 5 drives the needle locking block 8 and the bone round needle 9 to rotate back and forth, and the needle threading is performed rapidly.
It should be noted that the included angle between the two extreme positions of the rocker block 5 is greater than 120 degrees, that is, the reciprocating angle of the rocker block 4 can be greater than 120 degrees and the reciprocating frequency can reach more than 25HZ, which can meet the requirement that the bone round needle 9 with the triangular needle point performs reciprocating rotary cutting to 360 degrees, if the bone round needle is a quadrangular needle point, only 90 degrees are needed, which can meet the requirement that the bone round needle 9 performs reciprocating rotary cutting to 360 degrees, and the rapid reciprocating drill assembled according to the design value of the triangular needle point naturally meets the requirement of the quadrangular needle point, but has redundant vibration.
In other embodiments, the design and installation can be performed by relative dimensions according to different types of needle tips or the required size of the included angle, which is not illustrated herein, but falls within the protection scope of the present invention when different designs and installation are performed to adapt to different types of needle tips or change the size of the included angle.
In one embodiment, depending on the material used, a plurality of lightening holes may be suitably provided in the connecting rod block 3 to reduce the eccentric mass during operation without changing the shape and ensuring sufficient rigidity, thereby reducing the eccentric vibrations.
The utility model discloses a theory of operation does:
when the electric bone drill is used, the crank shaft 1 is connected with a drill chuck of a common unidirectional rotation electric bone drill, the outer frame body 7 is connected and fixed with an electric bone drill handle, a round bone needle 9 to be penetrated is placed in a needle hole in the front of the lock needle block 8, the needle point is aligned with the needle penetrating point, the switch of the electric bone drill is pressed, the crank shaft 1 drives the crank block 2 to rotate, the crank block 2 drives the connecting rod block 3 to move, the connecting rod block 3 drives the rocker block 4 to perform left-right back-and-forth swinging motion, the rocker block 4 drives the rocker shaft 5 to move, the rocker shaft 5 drives the lock needle block and the round bone needle 9 to perform swinging and rotating motion, an operator properly pushes the electric bone drill handle forward with force, and the round bone needle 9 is penetrated into a bone.
Although the present invention has been described with reference to the above preferred embodiments, it should be understood that the scope of the present invention is not limited thereto, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention.
Claims (9)
1. A reciprocating rotation bone round needle rapid needle threading device is characterized by comprising an outer frame body;
a first rotating shaft penetrates through the rear wall of the outer frame body, a first connecting block is connected to the inner end of the first rotating shaft, and a connecting rod block is rotatably hinged to the first connecting block;
the other end of connecting rod piece rotates to articulate has the second connecting block, is connected with the second pivot on the second connecting block, and wherein, the rear end of second pivot rotates with the back wall of outer frame body to be connected, and the front end of second pivot is worn to establish on the antetheca of outer frame body and is connected with the lock needle piece toward extending outward.
2. The reciprocating rotary bone round needle rapid threading device according to claim 1, characterized in that the first connecting block is a lath shape symmetrical about the first rotation axis.
3. The reciprocating rotary rapid bone round needle threading device according to claim 1, characterized in that the connecting rod block is in an L-shaped strip shape, wherein the long arm end of the connecting rod block is hinged with the first connecting block, and the short arm end is hinged with the second connecting block.
4. The reciprocating rotary bone round needle rapid needle threading device as claimed in claim 1 or 3, characterized in that the connecting rod block is provided with a plurality of lightening holes.
5. The reciprocating rotary rapid bone round needle threading device according to claim 1, wherein the second connecting block is a plate-like strip symmetrical about the second rotation axis.
6. The reciprocating rotary rapid needle threading device for the bone round needle as claimed in claim 3, wherein the long arm end and the short arm end of the connecting rod block are provided with bearing holes, the outer ends of the first connecting block and the second connecting block are connected with connecting shafts matched with the bearing holes, and the connecting rod block is rotatably hinged with the first connecting block and the second connecting block through the bearing holes respectively.
7. The reciprocating rotary rapid bone round needle threading device according to claim 1, characterized in that the first rotating shaft is rotatably connected with the rear wall of the outer frame body through a bearing.
8. The reciprocating rotary rapid bone round needle threading device according to claim 1, characterized in that the second rotating shaft is rotatably connected with the rear wall and the front wall of the outer frame body through bearings respectively.
9. The reciprocating rotary rapid bone round needle threading device according to claim 8, characterized in that the back wall and the front wall of the outer frame are respectively provided with a bearing fastening seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220369220.1U CN217310463U (en) | 2022-02-23 | 2022-02-23 | Reciprocating rotation bone round needle rapid needle threading device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220369220.1U CN217310463U (en) | 2022-02-23 | 2022-02-23 | Reciprocating rotation bone round needle rapid needle threading device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217310463U true CN217310463U (en) | 2022-08-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220369220.1U Active CN217310463U (en) | 2022-02-23 | 2022-02-23 | Reciprocating rotation bone round needle rapid needle threading device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217310463U (en) |
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- 2022-02-23 CN CN202220369220.1U patent/CN217310463U/en active Active
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