WO2014190945A1

WO2014190945A1 - Kirschner wire bender used in orthopedics

Info

Publication number: WO2014190945A1
Application number: PCT/CN2014/079027
Authority: WO
Inventors: 王晓; 肖艳; 刘大晗
Original assignee: 郑州泽正技术服务有限公司
Priority date: 2013-05-30
Filing date: 2014-05-30
Publication date: 2014-12-04
Also published as: CN105491971B; CN105491971A

Abstract

Disclosed is a Kirschner wire bender used in orthopedics, characterized in that a molding pellet (1) is fixed on a base (5), the base (5) is provided with a limiting column (4), wherein the limiting column (4) and the molding pellet (1) position the Kirschner wire together; and a shifting block (6) is rotatably connected on the base (5) via a connection member (31). The shifting block (6) which rotates about a rotating shaft (3) shifts the Kirschner wire to bend around the molding pellet (1) to form a standard hooked elbow, thus avoiding the disadvantage of time-consuming effort when using the head of a pair of pliers to bend the Kirschner wire, i.e. the Kirschner wire is first clamped, and then the Kirschner wire is forcibly bent in the clamped state.

Description

Orthopedic Kirschner needle bender

Technical field

The present invention relates to a surgical medical device, and more particularly to a orthopaedic Kirkner needle bender. Background technique

In orthopedic surgery, Kirschner wire is commonly used as a steel needle for the fixation of broken bone. Generally, the K-wire is about 20 cm, and the diameter is between 0.5 and 3 mm. It is used to fix short-fracture fractures such as short fractures or avulsion fractures, and is often used in the fixation of temporary fracture blocks during orthopedic surgery. In the operation, the Kirschner wire needle can be cut according to the size of the butt joint bone, and then the Kirschner wire needle is inserted into the drilled bone to fix, and the steel needle outside the bone is bent to prevent staying. The needle tail of the bone surface is peeled out of the skin or has not entered the bone surface and cannot be removed in the future. At present, the needle holder or the clamp head is often used to complete the bending work, which is often time consuming and laborious. The handle of the CN87212315U patent must be rotated 90 degrees to bend the Kirschner wire. During the bending process, the needle block is pressed. The side plane is always in contact with the K-wire.

Summary of the invention

SUMMARY OF THE INVENTION It is an object of the present invention to provide a orthopaedic needle bender to solve the problem of the time consuming and laborious task of using the needle holder or the clamp to complete the bending work in the prior art.

A orthopaedic Kirschner wire bender, the forming core block (1) is fixed on the base (5), the base (5) is provided with a limit column (4), and the limit column (4) is combined with the forming core block (1) For positioning of the Kirschner wire, the dial block (6) is rotatably connected to the base (5) by a connecting member (31).

The orthopaedic Kirschner needle bender, the dial (6) bends the Kirschner wire when the K-wire is used to contact the K-wire.

In the orthopedic Kirschner bender, the lobes (69) in contact with the K-wire form a cut-off port with the pellet (1).

The orthopaedic needle bender, the dial block (6) is rotatably connected to the base (5) through a connecting member (31), and is a fixed shaft between the dial block (6) and the base (5). The sleeve is pivotally connected.

In the orthopedic needle bender, one of a ball, a needle or a bearing is disposed between the fixed shaft and the sleeve. In the orthopedic needle bender, the limiting post (4) is fixed on the base, and the connecting member (31) is rotatably connected to the fixed shaft (35) of the base (5).

In the orthopedic needle bender, the connecting member (31) is rotatably coupled to the fixed shaft (35) of the base (5), wherein the connecting member (31) is a sleeve, and the sleeve end is fixed to the dial (6) The base (5) is one end of the fixed shaft (35).

In the orthopedic Kirschner bending device, the limiting column (4) is a stopper (19), and the base (5) and the stopper (19) are connected by a connecting rod.

In the orthopaedic Kirschner wire bender, the base (5) is connected to the handle (81), the guide rod (9) is connected to the handle (82), and the connecting rod is connected to the clamping handle (87).

The orthopedic needle bender, the forming core block (1) is fixed on the base (5), the base (5) is provided with a shaft hole (2), and the shaft hole (2) is provided with a rotating shaft (3) ), the shaft (3) extends out of the shaft hole to form a limit column (4), the limit column (4) and the forming core block (1) jointly position the Kirschner wire, and the rotating shaft (3) is fixedly fixed by the connecting member (31) Block (6); the rotating shaft (3), the connecting member (31) and the dial (6) constitute a rotating member.

In the orthopedic needle bender, the base (5) fixes a stopper (19), the stopper (19) is disposed around the shaft hole (2), the stopper (191) and the core block (1) In contrast, the stopper (191) is used to fix the K-wire when bending;

Or the stopper (192) is the shaft hole (2), the inner surface of the inner surface of the shaft (2) protrudes from the base (5), and the stopper (192) is used for resisting the limit column (4) when bending;

Or the base (5) is provided with a stopper (19), the shaft hole (2) is provided for the base (5), the shaft hole (2) penetrates the stopper (19), and the dial block is rotatably connected with the base (5) The shaft (3) of (6) penetrates into the shaft hole (2) and penetrates into the stopper (19). The shaft (3) extends out of the shaft hole (2) and penetrates the portion of the stopper (19). Block (19) is clamped to one side of the Kirschner slot to form a limit post (4);

Or the stopper (191) is a movable stopper, the stopper (191) is linked with the rotating shaft (3), the stopper (191) is placed in the movable slot (195), and the limiting post (4) is a cam, the stopper (191) interlocking with the cam connection of the rotating shaft (3);

Or the stopper (191) is a movable stopper, the stopper (191) is linked with the rotating shaft (3), the stopper (191) is placed in the movable slot (195), and the limiting post (4) is a cam, the stopper (191) in conjunction with the cam connection of the rotating shaft (3), the limiting column (4) is a cam, and the limiting column (4) is provided with a side plane (18); Or the stopper (191) is placed in the movable slot, a crank is arranged between the limit post (4) and the stopper (191), and the stopper (191) is coupled with the crankshaft (3) crankshaft;

Or the movable block is linked with a rotating shaft disposed on the base (5), and the movable block and the rotating shaft constitute a crank slider mechanism;

Or the movable block and the rotating shaft constitute a crank slider mechanism, the base (5) is provided with a shaft hole (2), the shaft hole (2) is provided with a rotating shaft (3), and the rotating shaft (3) protrudes from the shaft hole to form a limit The column (4), the limiting column (4) and the forming core block (1) jointly position the Kirschner wire, and the rotating shaft (3) fixes the dial block (6) through the connecting member (31); the rotating shaft (3), the connection The member (31) and the dial block (6) constitute a rotating member, the stopper (191) is placed in the movable slot (195), the limiting post (4) is a cam, the stopper (191) and the rotating shaft (3) Cam connection linkage;

Or the movable block and the rotating shaft constitute a crank slider mechanism, and the movable stopper (193) is connected with a compression spring (196) end of the sliding groove (194) placed on the base (5), the base (5) ) is integrally fixed with the clamp head side of the clamp head, the clamp main shaft (33) is provided with a cam (197), and the movable stopper (193) is linked with the cam (197) of the main rotary shaft (33) by the compression spring (196). ;

Or the movable block is linked with a rotating shaft disposed on the base (5), the movable block is an elastic member (198), and the elastic member (198) constitutes a supporting lever through the supporting member (199), and one end of the elastic member (198) Clamping the K-wire with the core block (1), the clamp main shaft (33) is provided with a pressing block (331) pressing the other end of the elastic member (198);

Or the movable block moves to the core block (1) at a fixed distance, and the movable block cooperates with the guide rail of the base (5), and the movable block abuts against the abutting block with a fixed distance variation, or the fixed distance varies. The abutting block is used as the movable block, the spacing is fixed by the abutting block with a fixed distance, the base (5) is fixed to the block body, the block body faces the side surface of the core block (1), and the pad is fixed with a thickness of the spacer to form a fixed interval. The distance abutting block, the polygonal pin is a regular polygonal pin (1905), a rectangular, polygonal pin end fixed movable shaft (1907)-end, and the movable shaft (1907) has a spring baffle fixed at the other end (1908) ), a return spring (1909) is provided between the spring baffle (1908) and the base (5);

Or the movable block moves to the core block (1) at a fixed distance, and the movable block cooperates with the guide rail of the base (5), and the movable block abuts against the abutting block with a fixed distance variation, or the fixed distance varies. of The abutting block is used as a movable block, the spacing is fixed by a distance-changing abutting block, the base (5) pin is matched with the polygonal pin, and the pin head of the polygonal pin is the pin column abutting the block, and the pin head side is The distance between the central axes of the pins is different, and the abutting blocks are formed by a fixed distance variation. The polygonal pin is a regular polygonal pin (1905), a rectangular, a polygonal pin, a fixed end (1907) end, and a movable shaft. (1907) The other end is fixed with a spring baffle (1908), and a return spring (1909) is disposed between the spring baffle (1908) and the base (5);

Or the abutting block with a fixed distance variation, the base (5) pin is matched with the cylindrical pin, the pin head of the cylindrical pin is the movable stop, and the movable stop is the pin head at least two sides, the side to the pin The distance between the central axes of the columns is different, and the movable stops are formed with a fixed distance variation. The base (5) is provided with at least one limiting surface that cooperates with the side of the movable block, and the limiting surface is combined with the cylindrical pin to position the movable stop. Or the stop (19) forms a plane (1991) for holding the slot of the K-wire, with a threaded hole perpendicular to the plane, a threaded hole matching the threaded rod (1992), a threaded rod (1992) and a plane ( 1991) - The end face is used to hold the K-wire.

In the orthopedic needle bender, the base (5) is integrally fixed with the clamp head side of the forceps, and the other side of the clamp head serves as a guide rod (9), and the crankshaft (3) is fixed with a crank. (Π), the linkage between the guide rod (9) and the crank (11), the linkage between the guide rod (9) and the crank (Π), and the slider (10) between the guide rod (9) and the crank (Π) Linkage

Or the base (5) is integrally fixed with the side of the pliers of the pliers, and the other side of the pliers serves as a guide

(9), the crank (3) fixed crank (Π), the guide rod (9) and the crank (11) linkage, the guide rod (9) and the crank (Π) linkage, the guide rod (9) and the crank (Π) Between the cylindrical pin and the groove is arranged to cooperate;

Or the base (5) is integrally fixed with the clamp head side of the pliers, the other side of the clamp head serves as a guide rod (9), and the crankshaft (3) is fixed with a crank (Π), the guide rod (9) and The crank (11) is interlocked, the guide rod (9) is interlocked with the crank (Π), and the cylindrical pin is arranged in cooperation with the groove between the guide rod (9) and the crank (Π), and the cylindrical pin is coupled with the groove. , the crank (Π) is provided with double-layer hanging ear groove (III), the guide rod (9) is provided with double convex cylindrical pin (91), and the double convex cylindrical pin (91) is attached with the double-layer hanging ear groove (ΙΠ). Or the rotating shaft (3) is connected with the main rotating shaft (33) of the pliers by gear meshing; or the rotating shaft of the guiding rod (9) is linked with the handle (82), which is the rotating shaft of the guiding rod (9) Between the rotating shaft of the handle (82), the meshing gears (91), (92) are provided; or the rotating shaft of the guiding rod (9) is interlocked with the handle (82), which is the rotating shaft of the guiding rod (9) A shift fork is provided between the rotating shafts of the handles (82). In the orthopedic needle bender, one side of the base (5) is integrally fixed with one side (501) of the two sides of the clamp head, and the intersection of the clamp heads on both sides is located in the slot for holding the Kirschner wire. In the range of 45 degrees on both sides of the center line, the other side of the clamp head serves as a guide rod (502), and the guide rod (502) and the connecting piece (601) of the dial block (6) are interlocked.

The orthopaedic needle bender, the intersection point of the two side clamp heads is an articulation axis A (331), and the guide rod (502) and the connecting piece (601) of the dial block (6) are linked. The end of the guiding rod (502) is hinged with the connecting member (601), and the guiding rod is a telescopic guiding rod (5020) for rotating with the dial block (6), the guiding rod is a telescopic guiding rod, and the guiding rod is two segments. Between the two guide rods, a sliding rod is formed in the sliding sleeve (5021) to form a telescopic sliding rod (5022);

Or the intersection of the two side clamp heads is a slider mechanism, and the guide rod (502) and the connecting piece (601) of the dial block (6) are interlocked, which is the end of the guide rod (502) and the connecting member ( 601) hinged by an articulated shaft (332), which is a slider mechanism that fits the pin (331) in the strip groove (5024);

Or the intersection of the two side clamp heads is a slider mechanism, and the guide rod (502) and the connecting piece (601) of the dial block (6) are interlocked, which is the end of the guide rod (502) and the connecting member ( 601) hinged by an articulated shaft (332), the slider mechanism is provided with a support hole (5025) for one side (501) of the clamp head, and the support guide rod (502) slides while rotating within the support hole (5025);

Or the intersection of the two side clamp heads is hinged by the hinge axis A (331), the guide rod (502) is interlocked with the connecting piece (601) of the dial block (6), and the end of the guide rod (502) is The connecting member (601) is a slider mechanism, and the slider mechanism is a slider mechanism that fits the pin (332) in the strip groove (5023).

In the prior art, the clamp head is used, and the Kirschner wire is often clamped first, and then the force is bent in the clamped state, which is time-consuming and laborious. The dial that rotates around the rotating shaft of the present invention pushes the K-wire to form the shaped core block. Bending to form a standard hooked elbow.

DRAWINGS

Figure 1 is an exploded view of the present invention.

Figure 2 is a side view of the operation of the present invention.

Figure 3 is a side view of the transmission power of the present invention.

Figure 4 is a front elevational view of the display dial of the present invention. Figure 5 is a side elevational view of the annular groove of the display limiting post of the present invention.

Figure 6 is a bottom plan view of the annular groove of the display limit post of the present invention.

Fig. 7 is a simplified schematic view showing the linkage relationship between the rotating shaft and the main rotating shaft of the present invention. Fig. 8 is a simplified schematic view showing the linkage relationship between the rotating shaft and the main rotating shaft of the present invention. Fig. 9 is a simplified schematic view 3 showing the linkage relationship between the rotating shaft and the main rotating shaft of the present invention. Figure 10 is a first schematic view of the working process of the present invention.

Figure 11 is a schematic view 2 of the working process of the present invention.

Figure 12 is a schematic view showing the structure of a display measuring strip of the present invention.

Figure 13 is a schematic view showing the structure of a hanging ear groove whose center axis is a straight line.

Figure 14 is a schematic view showing the structure of a lug groove having a central axis as an arc.

Figure 15 is a schematic view showing the structure of a hanging ear groove whose center axis is a broken line.

Figure 16 is a side view of the present invention.

Figure 17 is a cross-sectional view taken along line A-A of Figure 16;

Figure 18 is a second cross-sectional view taken along line A-A of Figure 16.

Figure 19 is a third cross-sectional view taken along line A-A of Figure 16.

Figure 20 is a fourth cross-sectional view taken along line A-A of Figure 16.

Figure 21 is a rear elevational view of Figure 16.

Figure 22 is a schematic side view of the axis of Figure 21;

Figure 23 is a schematic view showing the structure of the handlebar and the bottom edge of the base being greater than 90 degrees. Figure 24 is a schematic view showing another structure in which the angle between the handle and the bottom edge of the base is greater than 90 degrees. Figure 25 is a schematic view showing the structure of a gear between the guide shaft and the handle shaft.

Figure 26 is a schematic view showing the structure of the stopper around the shaft hole.

Fig. 27 is a schematic view showing another structure of the stopper provided around the shaft hole.

Figure 28 is a schematic view showing the structure of the present invention.

Figure 29 is a schematic view showing the structure of another view of Figure 27; Figure 3300 is a schematic view of another structure of the present invention. .

Fig. 3311 is a schematic view showing the structure of the other view angle structure of Fig. 2299. .

Figure 3322 is a schematic view showing the structure of the front and rear lower side faces of the dial block 66 and the right and right side faces being smaller than the 9900 degree knot structure. . Fig. 3333 is a schematic view showing the structure of the front and lower side side face portions of the dial block 66 before the turning block is rotated. .

55 Figure 3344 is a diagram of the explosion explosion of the invention. .

Figure 3355 is a schematic view of the structure of the present invention. .

Figure 3366 is a schematic view of the configuration of the clip structure in which the clip is clamped tightly. .

Figure 3377 is a schematic view of the structure of the folded Kek's needle position setting structure. .

Figure 3388 is a schematic view of the structure in which the Krok's needle is folded into a UU-shaped position. .

1100 Figure 3399 is a schematic view of the structure of the block structure of the movable movable stop block. .

The diagram 4400 is a schematic view showing the configuration of the side surface of the guide rod member 99 and the connecting member member 3311. . Fig. 4411 is a schematic view showing the structure of the back and outer surface of the base of the connecting rod and the connecting rod member 3311. . Figure 4422 is a schematic view showing the structure of the dial block provided with a circular arc-shaped convex lobe angle structure. .

Figure 4433 is a schematic view showing the structure of the dial block provided with a convex lobe angled knot structure. .

1155 Figure 4444 Active movable stop block block connection connection compression compression shrinkage spring spring structure structure schematic diagram. .

Figure 4455 The movable movable stop block is a schematic view of the elastic elastic body structure. .

Figure 4466 elastic elastic body set complex reset position spring spring structure analysis schematic diagram. .

Figure 4477 shows the schematic diagram of the movable movable stop block and the connection pad spacer structure. .

Figure 4488 shows the schematic diagram of the structure of the movable side block block connecting the pin head of the connecting pin head. .

2200 Figure 4499 shows the schematic diagram of the structure of the live-action stop block and the pin-column component. .

Figure 5500 pin column head head as a schematic diagram of the structure of the movable block block structure. .

Figure 5511 Schematic diagram of the structure of the circular cylindrical pin pin action movable block block structure. .

Figure 5522 Circular cylindrical pin pin action movable stop block block explosion explosion structure structure schematic diagram. .

Figure 5533 shows a schematic view of the overall body structure. .

2255 * Fig. 55 is a schematic view showing the structure of the slider mechanism by the strip-shaped groove and the side of the jaw.

Fig. 56 is a schematic sectional view showing the structure of the slider mechanism by providing support holes and guide bars on one side of the jaws.

Fig. 58 is a schematic view showing the structure of the K-wire of the screw end.

Figure 59 is a schematic view showing the formation of a cut-off opening between the lobes (69) in contact with the K-wire and the pellet (1).

Figure 60 is a schematic view showing the rotational connection of the fixed shaft and the sleeve.

Fig. 61 is a schematic view showing another kerf (69) in contact with the K-wire and a cut-off port formed by the pellet (1).

detailed description

An orthopaedic Kirschner needle bender, characterized in that: a forming core block (1) is fixed on a base (5), a base (5) is provided with a limiting column (4), a limiting column (4) and a forming core block (1) Co-locating the Kirschner wire, the dial block (6) is rotatably connected to the base (5) through the connecting member (31). As shown in Fig. 59, Fig. 61 and Fig. 61, the orthopaedic Kirschner wire bender, the dial (6) bends the Kirschner wire when the K-wire is used to contact the K-wire.

In the orthopaedic Kirschner bender, the lobes (69) in contact with the Kirschner wire form a cut-off port with the pellet (1). After the K-wire is bent at a certain angle, the K-wire is cut off. The K-wire is preferably bent at an angle of 90°, 180° or 90°-180°. When the bending angle of the needle is between 90° and 180°, the cutting surface of the shearing Kirschner wire is not perpendicular to the axis of the Kirschner wire at the cutting point. If the cutting surface is set to be substantially parallel to the axis of the Kirschner wire before bending, Then, the sharp corner formed by the notch surface forms a U-shaped bend together with the above-mentioned bending; of course, the K-wire bending angle is less than 90°, but the effect is not good.

In the orthopedic needle bender, one of a ball, a needle or a bearing is disposed between the fixed shaft and the sleeve.

In the orthopedic needle bender, the limit post (4) is fixed on the base, and the connecting member (31) is rotatably connected to the fixed shaft (35) of the base (5).

In the orthopedic needle bender, the connecting member (31) is rotatably coupled to the fixed shaft (35) of the base (5), wherein the connecting member (31) is a sleeve, and the sleeve end is fixed to the dial (6) The base (5) is one end of the fixed shaft (35). In the orthopedic Kirschner bending device, the limiting column (4) is a stopper (19), and the base (5) and the stopper (19) are connected by a connecting rod. The form of the stopper (19) is identical to the meaning of the rear movable stopper and the like.

As shown in Figs. 53-57, an orthopaedic Kirkner pin bender is formed on the base 5, and the base 5 is provided with a stopper 19, and the stopper 19 and the core block 1 constitute a K-wire. The groove, the dial 6 which is rotatably connected with the base 5 is used for dialing the Kirschner wire, and the knuckle 69 which is in contact with the K-wire when the Knuckle pin is turned to fold the K-wire into a U-bend.

In the orthopedic needle bender, one side of the base 5 is integrally fixed with one side 501 on both sides of the clamp head, and the intersection point of the clamp heads on both sides is located at the center line of the groove holding the Kirschner wire. In the range of 45 degrees on the side, the other side of the clamp head serves as a guide rod 502, and the guide rod 502 is interlocked with the connecting member 601 of the dial block 6. Due to the intersection of the clamp heads on both sides, it is the intersection of the guide rod 502 and the one side clamp head 501, which is located within 45 degrees of both sides of the center line of the groove holding the Kirschner wire, and the Kirschner wire is clamped. The center line of the groove refers to the axis of the Kirschner wire clamped, so that the clamp head is arranged substantially in the direction in which the Kirschner wire extends. When the base 5 is in contact with the human body, the doctor can The end of the needle bender is deep into the cut edge and the K-wire is bent. From this point of view, the intersection of the clamp heads on both sides is better at the center line of the groove holding the K-wire.

The orthopaedic needle bender, the intersection point of the two side clamp heads is an hinge axis A331, and the guide rod 502 and the connecting piece 601 of the dial block 6 are interlocked, which is the end of the guide rod 502 and the connecting piece The 601 is hinged, and the guide rod is a telescopic guide rod 5020 to rotate with the dial block 6. Since the intersection point of the clamp heads on both sides is the hinge axis A331, and the dial block 6 bends the Kirschner wire in the rotating state, the distance between the connecting member 601 and the clamp hinge axis A331 changes in the state in which the dial block 6 rotates, and the telescopic The guide 5020 is intended to accommodate this change in distance.

In the orthopaedic Kirschner wire bending device, the guiding rod is a telescopic guiding rod, and the guiding rod is two-stage, and the sliding rods are formed by the sliding rods in the sliding sleeve 5021 between the two guiding rods. Thus, the guide rod of the sliding sleeve 5021 can be hinged to the clamp hinge shaft as shown in Fig. 54, at this time, the sliding rod 5022 extends from one end of the sliding sleeve 5021 and the dial 6 The connector 601 is hinged; the effect is the same after the two are exchanged.

The orthopaedic needle bender, the intersection point of the two side clamp heads is a slider mechanism, and the guide rod 502 and the connecting member 601 of the dial block 6 are interlocked, and the end of the guide rod 502 is connected with the joint The member 601 is hinged by the hinge shaft 332. Since the guide rod 502 is not expandable and contractible, the intersection portion of the guide rod 502 and the clamp head side 501, that is, the intersection point of the two side clamp heads is adopted, and the slider mechanism that slides and rotates the guide rod 502 with respect to the clamp head side 501 is adopted. The distance between the connecting member 601 of the dial block 6 and the bending axis of the clamp head is changed in a state where the dial 6 is rotated.

In the orthopaedic Kirschner needle bender, the slider mechanism is a slider mechanism that fits the pin 331 in the strip groove 5024. In Fig. 55, a strip groove 5024 is provided on the guide rod 502, and a pin 331 is disposed on the side 501 of the jaw head, and the pin 331 is the aforementioned hinge shaft A331.

In the orthopaedic Kirschner needle bender, the slider mechanism is provided with a support hole 5025 for the side of the clamp head 501, and the support guide rod 502 slides while rotating in the support hole 5025. In Fig. 56, the cross section of the support hole 5025 is a waist hole, and the thin waist portion of the waist hole supports the guide rod 502, and the gradually widened portion is suitable for the rotation of the guide rod 502. Of course, the cross section of the support hole may also be a flared hole.

The orthopaedic needle bender, the intersection of the two side clamp heads is hinged by the hinge axis A331, the guide rod 502 is interlocked with the connecting piece 601 of the dial block 6, and the end of the guide rod 502 is connected with the joint The member 601 is connected by a slider mechanism. Since the guide rod is not telescopic, a slider mechanism that slides and rotates between the connecting rod and the connecting member of the dial 6 is adopted to match the distance between the connecting member of the dial 6 and the hinge shaft of the clamp head, and the dial block 6 rotates. Change in state.

In the orthopaedic Kirschner wire bender, the slider mechanism is a slider mechanism that fits the pin 332 in the strip groove 5023. In Fig. 57, the strip groove is disposed on the guide rod, and the pin column is disposed on the connecting member; of course, the connecting member is provided with a supporting hole, and the supporting guide rod is slidable while rotating in the supporting hole, and the pin 332 is the aforementioned hinge shaft 332.

The orthopaedic needle bender of Fig. 57, on the other side of the base 5, is provided with a reinforcing rod 503 between the base and the jaw. In this way, the side of the clamp head that is integral with the base can save some material. As shown in Fig. 58, the stopper Kirschner bender, the stopper (19) forms a plane (1991) for holding the groove of the K-wire, and a threaded hole perpendicular to the plane is provided, and the threaded hole is matched with the threaded rod. (1992), the end of the threaded rod (1992) conforming to the plane (1991) for clamping the Kirschner wire. When the stop (19) forms a groove for holding the K-wire, the width of the groove is larger than the K-wire diameter, and the rotation of the rotary threaded rod (1992) can clamp the Kirschner wire with the end face of the threaded rod (1992) conforming to the plane (1991).

An orthopaedic Kirschner wire bender, the forming core block 1 is fixed on the base 5, and the base 5 is provided with a stopper 19, and the stopper 19 and the core block 1 constitute a groove for holding the K-wire, and is rotatably connected with the base 5. The dial 6 is used to dial the K-wire, and the knuckle 69 which is in contact with the K-wire when the K-wire is moved by the K-wire is folded into a U-bend.

The stopper 19 is a movable stopper, and the movable stopper moves toward the core block 1 to clamp the K-wire.

The movable block moves toward the core block 1 and moves toward the core block 1 at a fixed distance from the movable stop.

The movable block moves to the core block 1 at a fixed distance, the movable block cooperates with the guide rail of the base 5, and the movable block abuts against the abutting block with a fixed distance variation; or the abutting block with a fixed fixed distance is used as the abutting block Active stop.

The abutting block whose distance is fixed by a fixed distance, the base 5 fixes the block body, the block body faces the side surface of the core block 1, and the spacer has a spacer of a fixed thickness, and constitutes an abutting block with a fixed distance variation. Different thicknesses and different numbers of spacers make the distance between the movable block and the core block 1 different, that is, the moving block is moved to the core block 1 at a fixed distance. As shown in FIG. 47, the movable stopper 1901 is slidably engaged with the sliding slot 1902 of the base 5, and two 0.5 mm thick spacers 1904 are clamped between the abutting stopper 1903 and the trailing end of the movable stopper 1901, and the movable stopper 1901 and the core block are clamped. A 2 mm slot for holding the K-wire is formed between 1 and if a 0.5 mm thick spacer 1904 is removed, a 2.5 mm slot for holding the K-wire is formed between the movable stopper 1901 and the pellet 1, and so on. Forming a groove for holding the Kirschner wire at a fixed distance; removing the sliding groove 1902 of the movable stopper 1901 and the base 5, and moving the two 0.5 mm thick spacers 1904 and the abutting stopper 1903 toward the core block 1 to make the spacer 1904 The formation of a 2 mm slot for clamping the K-wire between the core block 1 can also be achieved.

The abutting block with a fixed distance variation, the base 5 pin and the polygonal pin, the pin head of the polygonal pin is the pin abutting block, and the distance from the side of the pin head to the central axis of the pin is different. Abutting blocks that vary in distance by a fixed distance. In this way, the polygonal pin is pulled out and the different pin head sides are changed, that is, the movable block moves to the core block 1 at a fixed distance. In this case, generally, the cross section of the pin is a regular polygon. As shown in Figs. 48 and 49, the movable stopper 1901 is slidably engaged with the sliding slot 1902 of the base 5, the pin 1905 is square, and the pin head 1906 is a rectangular abutting block. The distance between the four sides of the pin head 1906 to the axis of the pin 1905 differs by 0.5 mm, respectively, and the four sides of the pin head 1906 abut against the movable block 1901, respectively, so that the movable block 1901 moves to the core block 1 at a fixed distance. However, when the cross section of the pin is rectangular, when the pin head is also rectangular, the distance between the two sides of the rectangular pin head to the central axis of the rectangular pin is different, and the opposite side faces are changed, and the abutting block with a fixed distance is also formed. As shown in Fig. 50, the movable stopper 1901 and the sliding groove 1902 of the base 5 are removed, and the side of the pin head 1906 directly forms a groove for holding the Kirschner wire at a fixed distance from the core block 1.

51, 52, the abutting block with a fixed distance variation, the base 5 pin is matched with the cylindrical pin 19051, the pin head of the cylindrical pin 19051 is an active stop, and the movable stop is at least two pin heads. On the side, the movable block in the figure is a rectangular column 19011, and the distance between the lateral end sides and the central axis of the pin is different, and constitutes an active block with a fixed distance variation, and at least one limit on the base 5 is matched with the side of the movable block. Face 19021, the limiting surface 19021 is combined with the cylindrical pin 19051 to position the movable stopper, and the positioning is to prevent the movable stopper from rotating.

The end of the polygonal pin is fixed to the movable shaft 1907-end, and the other end of the movable shaft 1907 is fixed to the spring baffle 1908, and a return spring 1909 is disposed between the spring baffle 1908 and the base 5. As shown in Figures 48 and 49, by pressing the spring stop 1908, the pin head 1906 can change the different sides to abut the end of the movable stop 1901. In the figure, the return spring 1909 is a coil spring, and it is also possible to use a spring piece for the purpose of resetting the pin.

The force receiving point of the dial block 6 is outside the dial block 6. In this way, the driving force can be reduced, and the force point can be brought close to the positive outer side of the force receiving point of the dial block 6, so that the force is balanced during the shifting, and the groove between the force receiving point of the dialing block 6 and the connecting rod 31 is added. The groove clamps the outer arc surface of the base 5, so that the force is more balanced when the movement is made. The guide rod 9 is located in the interlayer of the base 5, and is also such that the force is more balanced when the shift is made.

An orthopaedic Kirschner wire bender, the forming core block 1 is fixed on the base 5, and the base 5 is provided with a stopper 19, The stopper 19 and the core block 1 constitute a groove for holding the K-wire, the dial 6 which is rotatably connected with the base 5 is used for dialing the K-wire, and the lobe of the K-wire is used when the K-wire is moved by the block 6 69 The K-wire is folded into a U-bend.

In the orthopaedic Kirschner wire bender, the movable block is linked with a rotating shaft disposed on the base 5. The movable stopper is linked with a rotating shaft disposed on the base 5, and the movable stopper and the rotating shaft constitute a crank slider mechanism.

As shown in FIG. 39, the movable block and the rotating shaft constitute a crank slider mechanism, the base 5 is provided with a shaft hole 2, and the shaft hole 2 is provided with a rotating shaft 3, and the rotating shaft 3 extends out of the shaft hole to form a limiting column 4, and the limiting column 4 and The forming core block 1 is commonly positioned to the K-wire, and the rotating shaft 3 fixes the dial 6 through the connecting member 31; the rotating shaft 3, the connecting member 31 and the dial 6 constitute a rotating member; the stopper 191 is placed in the movable slot 195, The limit post 4 is a cam, and the stopper 191 is linked with the cam connection of the rotary shaft 3.

As shown in FIG. 44, the movable stopper and the rotating shaft constitute a crank slider mechanism, and the movable stopper 193 is connected to the compression spring 196 end in the sliding groove 194 disposed on the base 5, and the base 5 and the clamp head of the clamp head are The side solid is integrated, the main shaft 33 of the clamp head is provided with a cam 197, and the movable stopper 193 is interlocked with the cam 197 of the main shaft 33 by a compression spring 196. The cam compression spring 196 is compressed, and the compression spring 196 is a spring of high strength, and the compression spring 196 is elastic to press the movable stopper 193 against the K-wire.

As shown in Fig. 45, the movable stopper is linked with the rotating shaft disposed on the base (5), the movable stopper is an elastic member 198, and the elastic member 198 constitutes a supporting lever through the supporting member 199, and the elastic member 198 (the curved elastic strip in the figure) One end of the clamper clamps the K-wire with the core block 1, and the clamp main shaft 33 sets the clamp block 331 to press the other end of the elastic member 198. The pressing block 331 presses one end of the elastic member 198, and the other end of the elastic member 198 presses the Kirschner wire like a seesaw.

The base 5 is provided with a return spring 1981 as shown in Fig. 46 for resetting the elastic member 198. The base 5 is provided with a limiting member 1982 to prevent the elastic member 198 from coming off.

As shown in Fig. 42, 43 is an orthopaedic Kirschner bending device, the forming core block 1 is fixed on the base 5, and the base 5 is provided with a stopper 19, and the stopper 19 and the core block 1 constitute a groove for holding the K-wire, and Dial block for rotary connection of base 5 6 is used to dial the K-wire, and the knuckle 69 which is in contact with the K-wire when the K-wire is moved by the K-wire is folded into a U-bend. This is defined such that the face of the dial block 6 in contact with the K-wire is not only one plane, but the two sides of the side and the lower side or the joint of the two sides of the side and the lower side, so that the dial 6 can be rotated. Less than 180 degrees, the K-wire can be folded into a u-bend; the angle of the lobes 69 is related to the position of the shaft of the dial 6; in the process of the K-wire being pulled by the dial 6, if the K-wire is detached The lobed contact, that is, the surface under the lobes 69 is in contact with the Kirschner wire, and the K-wire is folded into a u-bend.

The direction of the lobes 69 is obliquely downward, the lobes 69 are arcuate, the arcs are arcuate, and the lobes 69 are angular. An orthopaedic Kirschner wire bender, the forming core block 1 is fixed on the base 5, and the base 5 is provided with a stopper 19, and the stopper 19 and the core block 1 constitute a groove for holding the K-wire, and is rotatably connected with the base 5. The dial 6 is used to dial the K-wire, and during the toggle process, the dial 6 has two faces in contact with the K-wire, and the K-wire is folded into a U-bend.

The base 5 is provided with a stopper 19 for fixing the stopper 19 for the base 5.

The dial 6 rotatably connected to the base 5 is used for dialing the Kirschner wire, and the shaft 39 is provided on the back of the base 5, and the connecting member 31 fixed to the dial 6 is sleeved on the shaft 39.

The base 5 is integrally fixed with the clamp head side of the clamp head, and the other side of the clamp head serves as a guide rod 9, and the guide rod 9 is interlocked with the connecting member 31.

The guide rod 9 and the connecting member 31 are interlocked to connect the connecting rod 9 and the connecting member 31 through the connecting rod 38 to form a link mechanism.

The link mechanism, the length of the guide rod 9 is greater than the length of the connecting member 31. When the guide rod 9 is rotated, the angle at which the connecting member 31 rotates is larger than the angle at which the guide rod 9 rotates.

The base 5 and the guide rod 9 are respectively connected to the handle.

As shown in FIG. 1 , FIG. 2 and FIG. 3 , the forming core block 1 is fixed on the base 5 , the base 5 is provided with a shaft hole 2 , the shaft hole 2 is provided with a rotating shaft 3 , and the rotating shaft 3 extends out of the shaft hole to form a limiting column 4 . The limiting post 4 is positioned with the forming core 1 to position the Kirschner wire 19, and the rotating shaft 3 fixes the dial 6 through the connecting member 31, so that the forming core block 1 and the limiting post 4 limit the Kirschner wire 19 to make the rotating shaft 3 rotation, dial block 6 dial K-wire 19 around the forming core block 1 Bending to form a hooked elbow.

In order to prevent the dial 6 from slipping during the movement of the K-wire 19, an arcuate groove 61 may be provided on the portion of the dial 6 that is in contact with the K-wire 19, and the position of the arc-shaped groove 61 is as shown in FIG. Therefore, the Kirschner wire 19 does not slip off the dial block 6, and the ring groove 41 may be disposed at a portion of the limit post 4 that is in contact with the K-wire 19, and the installation portion of the chute 41 is as shown in FIG. 5 and FIG. The needle 19 does not slip off the limit post 4; of course, although the Kirschner wire 19 can be bent into a hook shape in this case, it is difficult to rotate the rotary shaft 3.

In order to easily rotate the rotating shaft 3, it is necessary to provide torque to the rotating shaft 3, and the rotating shaft 3 can be rotated more than 90 degrees. For this reason, the base 5 is integrally fixed with the clamp head side of the clamp head, and the other side of the clamp head is passed through the clamp. The head opening and closing provides torque for the rotating shaft 3, but the maximum angle of the opening and closing of the clamping head is generally 45 degrees. To rotate the rotating shaft 3 by more than 90 degrees, a speed increasing device is arranged between the main rotating shaft 33 of the clamping head and the rotating shaft 3. (that is, the speed reducing device), for example, a sector gear fixed at a 45-degree angle on the main rotating shaft 33, and a sector gear fixed at a 90-degree angle on the rotating shaft 3, the two sector gears are completely meshed, and the main rotating shaft 33 is rotated 45 degrees to drive the rotating shaft 3 to rotate 90. Degree can be achieved; of course, the sector gear can also be a complete gear, which is not shown in the figure.

As shown in FIG. 7, a guide rod 9 is disposed on the main rotating shaft 33 of the clamp head, which is the other side of the clamp head (the same as the slider of the link mechanism), and the guide rod 9 is provided with the slider 10 and the link mechanism. Like the slider, the slider 10 can slide along the guide rod 9, the crank shaft 3 is provided with a crank 11, and the crank 11 is connected with the slider 10 to constitute a crank guide mechanism. At this time, the length of the guide rod 9 is larger than the length of the crank 11, and the slider can be restricted. The movement length of 10 is such that the rotation angle of the crank 11 is less than 180 degrees, and the crank 11 and the guide rod 9 are oscillated at the same time, except that the swing angle of the crank 11 is larger than the swing angle of the guide rod 9, and the ratio of the length of the crank 11 to the guide rod 9 is adjusted, which is suitable for the clamp. The opening and closing angle of the head can realize the crank swinging by 90°; this embodiment is changed as follows, the slider 10 is disposed on the crank 11, the slider 10 is slid along the crank 11, and the guide rod 9 is connected with the slider, since the crank 11 is Short, as shown in Fig. 8, the same purpose is achieved for the crank 11 and the guide rod 9 to swing together; in another case, as shown in Fig. 9, two sliders 10 rotatable with each other are simultaneously at the crank 11 and the guide Simultaneous sliding on the rod 9 can also achieve the same swing of the crank 11 and the guide rod 9. The purpose, specific election guide 9 is provided on the slider 1101, the slider is provided on the crank II 102, I 101 between the slider and the slider II 102 by a shaft 103 rotatably connected to; the As long as the crank 11 and the guide rod 9 are interlocked, the crank 11 and the guide rod 9 can be oscillated at the same time; the interlocking members are not limited to the slider 10 and the like, and the above-mentioned linkage form can also be matched with the groove pin and the groove. achieve.

The cylindrical pin and the groove are matched in the form of: a lug groove 111 is arranged on the crank 11, and the guide rod 9 is provided with a cylindrical pin 91, and the cylindrical pin 91 is hooked to the lug groove 111.

The side of the clamp head integrally fixed with the base 5, the angle a between the handle 81 integral with the side clamp head and the bottom edge of the base 5 is 0-180 degrees.

The angle between the handle 81 of the side clamp head and the bottom edge of the base 5 is 90-180 degrees. Thus, the tiger's mouth of the hand abuts the handle 81 fixed to the base 5, and the four fingers move the handle 82, so that the base 5 is stable during the bending process, and is more ergonomic with the hand state.

The rotating shaft of the guide rod 9 is interlocked with the handle 82.

The rotating shaft of the guide rod 9 is interlocked with the handle 82, and between the rotating shaft of the guiding rod 9 and the rotating shaft of the handle 82, meshing gears 91, 92 are disposed. The gear is a sector gear. Similarly, the tiger's mouth of the hand abuts the handle 81 fixed to the base 5, and the four fingers move the handle 82, so that the base 5 is stable during the bending process, and the ergonomics of the hand state are more suitable. The sector gear saves space.

The guide rod 9 is provided in a curved shape, which is advantageous in that the force is large at the time of bending and the force is small at the time of resetting. As shown in Fig. 5, a return spring 100 may be disposed between the handles 8 of the jaws.

In use, the clamp head handle 8 is gripped, the clamp head is closed, the guide rod 9 is rotated upward, and the cylindrical pin 91 drives the hanging lug groove 111 to rotate upward, as shown in FIG. 10, thereby driving the dial 6 to rotate, and the dial 6 is moved. The Kirschner wire 19 is bent around the forming pellet 1 to form a hook-shaped elbow, as shown in Fig. 11; the jaw handle 8 is released, the return spring 100 between the handles 8 opens the handle 8 and the jaws are opened, the guide rod 9 is rotated downward, and the cylindrical pin 91 drives the hanging ear groove 111 to rotate downward, thereby driving the dial block 6 to be reset.

The inside of the two handles of the above jaws form a jaw 14. The jaws can be used to cut longer K-wires for ease of use and for a variety of purposes.

As shown in FIG. 12, the outer side of the handle of the clamp head connected to the base is provided with a measuring strip 7, and the measuring strip 7 is movable. Mounted on the handle, and the handle is provided with a groove 12 matching the measuring strip 7, and the handle is further provided with a pinhole 13 matching the jaw 14. The length of the measuring strip is the same as the length of the K-wire needle. When it is used, the Kirschner wire is threaded out of the needle hole, and the measuring strip is placed against the human skin, so that the length of the K-wire is reserved and the bending is required. The length of the portion is uniform, and the portion that protrudes from the pinhole is cut by the jaw.

The center axis of the above-mentioned hanging ear groove 111 is a straight line as shown in FIG. As shown in Fig. 14 and Fig. 15, the central axis of the lug groove 111 may also be an arc or a broken line. The ear-shaped grooves of different structures can be used for the purpose of use. In the actual production process, the ear-shaped grooves of various structures can be formed as needed.

As shown in Fig. 17, Fig. 18, Fig. 19 and Fig. 20, a rotation shaft restricting mechanism is provided between the rotating member and the base 5 for preventing the shaft from coming off.

As shown in Fig. 17, the hinge limiting mechanism means that a card slot is provided on the rotating shaft portion of the protruding shaft hole, and a retaining spring 15 for holding the rotating shaft is disposed in the card slot.

As shown in Fig. 18, the hinge limiting mechanism means that the dial 6 of the rotating member is provided with a recess that catches the edge of the base 5, and the surface in contact with the recess is a curved surface.

As shown in Fig. 19, the hinge limiting mechanism means that the connecting member of the rotating member is provided with a "T" shaped projection 16, and the base is provided with a "T" shaped groove matching the "T" shaped projection 16.

As shown in Fig. 20, the limiting mechanism means that the slider of the rotating member is provided with a projection 17, and the base 5 is provided with a groove matching the projection 17.

As shown in Fig. 17, the connection between the center of the main shaft of the clamp head and the end of the clamp handle connected to the base, the minimum angle a between the connection and the lower end surface of the base is 0° - 50°, To accommodate bending the K-wire at different angles of inclination.

As shown in FIG. 21 and FIG. 22, the limiting post is provided with a side plane 18 for pressing the K-wire when the dial is toggled, and the cylindrical block can be rotated by a small angle. The K-wire is pressed; the side plane 18 and the dialing surface 19 of the dial block may be in an initial state, or you may not be parallel, and the dialing surface 61 may be a face or a line.

The stopper 191 is a movable stopper, and the stopper 191 is interlocked with the rotating shaft 3. The stopper 191 is placed in the movable slot 195, and the limiting post 4 is a cam, and the stopper 191 is coupled with the cam connection of the rotating shaft 3.

As shown in Fig. 39-41, the limit column 4 is a cam 41, and the limit column 4 is provided with a side plane 18. Of course, the surface of the stopper 191 contacting the cam or the limiting post 4 may be a flat surface, which is the easiest to process. For better clamping of the Kirschner wire, other shapes may be used, and the cam may have other shapes as long as it is better. Clamp the K-wire.

In operation, when the dial is rotated at a small angle, the limit post 4 can be rotated from the side plane 18 to the cylindrical surface. The stop block 191 moves along the movable slot, and the Kirschner wire is clamped in its clamping groove, and The root is clamped, the dial block continues to be toggled, the K-wire is bent into a U-shape, and a stop member is disposed between the stopper 191 and the groove 195 to prevent the stopper 191 from slipping out.

The stopper 191 is placed in the movable slot, and a crank is disposed between the limiting post 4 and the stopper 191, and the stopper 191 is coupled with the crankshaft 3 crankshaft.

The distance from the side plane 18 to the axis of the limit column is less than the distance from the bottom of the ring groove 41 to the axis of the limit column. When the upper plane of the limit column is in the initial position, the Kirschner wire is placed between the limit column and the forming core block, and the rotating shaft is rotated, and the ring groove on the limit column limits the Kirschner wire to prevent the Kirschner wire from coming out. When the distance from the side plane to the axis of the limit column is less than the distance from the bottom of the ring groove to the axis of the limit column, the Kirschner wire can be pressed.

The base 5 is fixed to a stopper 19 which is provided around the shaft hole 2.

The stopper 191 is opposed to the pellet 1, and the stopper 191 is used to fix the K-wire when bending. This is because when the K-wire is fixed by bending, the K-wire is pressed when the limit column 4 rotates, but the contact surface of the limit column 4 is small when the K-wire is pressed, and the contact surface is suspended below, and the K-wire is easily suspended. Lifting, affecting the bend, the stopper 191 is set to prevent the Kirschner needle from lifting.

The stopper 192 is a surface of the shaft hole 2 opposite to the core block 1 and protrudes from the base 5, and the stopper 192 is used for resisting the limit post 4 when bending. When the limit column 4 is pressed and the K-wire is bent, Krebs has a force against the limit column 4. Since the limit column 4 is relatively thin, if the material strength is insufficient, it is prone to deformation or breakage, and the block 192 is limited. The column 4 exerts a resistance so that the limit column 4 is subjected to pressure.

Claims

Claim

1. A orthopaedic Kirschner bending device, characterized in that: a shaped pellet (1) is fixed on a base (5), a base

(5) Set the limit column (4), the limit column (4) and the forming core block (1) jointly position the Kirschner wire, and the dial block (6) is rotatably connected to the base (5) through the connecting member (31) .

2. The orthopedic needle bender according to claim 1, characterized in that the knuckle (69) which is in contact with the Kirschner wire when the knuckle is moved by the knuckle (6) bends the Kirschner wire.

The orthopedic needle bender according to claim 2, wherein the lobes (69) in contact with the K-wire form a cut-off port with the pellet (1). ,

4. The orthopedic needle bender according to claim 3, wherein: the dial block (6) is rotatably connected to the base (5) by a connecting member (31), which is a dial block (6) and A fixed shaft and a sleeve are rotatably connected between the bases (5).

5. The orthopedic needle bender according to claim 4, wherein one of a ball, a needle or a bearing is disposed between the fixed shaft and the sleeve.

The orthopedic needle bender according to any one of claims 2 to 5, characterized in that: the limiting post (4) is fixed on the base, and the connecting member (31) is rotatably connected to the base (5) On the fixed shaft (35).

7. The orthopedic needle bender according to claim 6, wherein: the connecting member (31) is rotatably coupled to the fixed shaft (35) of the base (5), wherein the connecting member (31) is Bushing, bushing end fixed block

(6), the base (5) is one end of the fixed shaft (35).

8. The orthopedic needle bender according to claim 7, wherein: the limiting post (4) is a stopper (19), and the base (5) and the stopper (19) are connected by a connecting rod. .

9. The orthopedic needle bender according to claim 7, wherein: the base (5) is connected to the handle (81), the guide rod (9) is connected to the handle (82), and the connecting rod is connected to the clamping handle. (87).

10. The orthopedic needle bender according to any one of claims 2 to 4, characterized in that: the shaped pellet (1) is fixed on the base (5), and the base (5) is provided with a shaft hole ( 2), the shaft hole (2) is provided with a rotating shaft (3), the rotating shaft (3) extends out of the shaft hole to form a limiting column (4), and the limiting column (4) and the forming core block (1) together with the Kirschner wire Positioning, the rotating shaft (3) fixes the dial (6) through the connecting member (31); the rotating shaft (3), the connecting member (31) and the dial (6) constitute a rotating member.

11. The orthopedic needle bender according to claim 10, wherein: the base (5) fixes a stop (19), and the stop (19) is disposed around the shaft hole (2). The block (191) is opposite to the core block (1), the stopper (191) is used to fix the K-wire during bending; or the stopper (192) is the surface of the inner surface of the shaft hole (2) opposite to the core block (1) Extending the base (5), the stop (192) is used to resist the limit post (4) when bending; or the base (5) is provided with a stop (19), and the base (5) is provided with a shaft hole (2) ), the shaft hole (2) penetrates the stopper (19), and the rotating shaft (3) of the dial (6) rotatably connected with the base (5) penetrates into the shaft hole (2) and penetrates the stopper (19). The portion of the rotating shaft (3) extending from the shaft hole (2) and penetrating into the stopper (19) is exposed on the side of the stopper (19) where the Kirschner slot is clamped to form a limit post (4); The stopper (191) is a movable stopper, the stopper (191) is linked with the rotating shaft (3), and the stopper (191) is placed in the movable In the slot (195), the limit post (4) is a cam, and the stopper (191) is linked with the cam connection of the rotating shaft (3); or the stopper (191) is a movable stopper, the stopper (191) and the rotating shaft (3) Linkage, the stopper (191) is placed in the movable slot (195), the limit post (4) is a cam, the stopper (191) is linked with the cam connection of the rotating shaft (3), and the limit post (4) is The cam, the limit post (4) is set to the side plane (18); or the stop (191) is placed in the movable slot, the crank between the limit post (4) and the stop (191), the stop (191) and The rotating shaft (3) is connected with the crankshaft; or the movable block is linked with the rotating shaft disposed on the base (5), the movable block and the rotating shaft constitute a crank slider mechanism; or the movable block and the rotating shaft constitute a crank slider mechanism The base (5) is provided with a shaft hole (2), the shaft hole (2) is provided with a rotating shaft (3), the rotating shaft (3) protrudes from the shaft hole to form a limiting column (4), the limiting column (4) and the forming The core block (1) collectively positions the Kirschner wire, and the rotating shaft (3) fixes the dial block (6) through the connecting member (31); the rotating shaft (3), the connecting member (31) and the dial block (6) constitute a rotating member The stopper (191) is placed in the movable slot (195), and the limiting post (4) is a cam. The block (191) is interlocked with the cam connection of the rotating shaft (3); or the movable block and the rotating shaft constitute a crank slider mechanism, the movable stopper (193) and the sliding groove (194) placed on the base (5) The compression spring (196) is connected at the end, the base (5) is integrally fixed with the clamp head side of the clamp head, the clamp main shaft (33) is provided with a cam (197), and the movable stopper (193) is passed through the compression spring ( 196) interlocking with the cam (197) of the main shaft (33); or the movable block is linked with a rotating shaft disposed on the base (5), the movable block is an elastic member (198), and the elastic member (198) is supported by The member (199) constitutes a supporting lever, one end of the elastic member (198) clamps the K-wire with the core block (1), and the main rotating shaft (33) of the clamping head sets the pressing block (331) to press the other end of the elastic member (198); Or the movable block moves to the core block (1) at a fixed distance, and the movable block cooperates with the guide rail of the base (5), and the movable block abuts against the abutting block with a fixed distance variation, or the fixed distance varies. The abutting block acts as a movable block, the spacing is fixed by a distance-changing block, the base (5) fixes the block, and the block faces The side surface of the block (1) is a spacer of a fixed thickness of the insert pad, and forms an abutting block with a fixed distance variation. The polygonal pin is a regular polygonal pin (1905), and a rectangular, polygonal pin end fixed moving axis ( 1907) - end, the other end of the movable shaft (1907) is fixed with a spring baffle (1908), and a return spring (1909) is arranged between the spring baffle (1908) and the base (5); or the movable block is spaced apart by a fixed distance The core block (1) moves, the movable block cooperates with the base (5) rail pair, the movable block abuts against the abutting block with a fixed distance variation, or the abutting block with a fixed distance variation acts as the active block. The abutting block with a fixed distance variation, the base (5) pin is matched with the polygonal pin, and the pin head of the polygonal pin is the pin abutting block, and the distance from the side of the pin head to the central axis of the pin is different, and the composition is An abutting block with a fixed distance variation, the polygonal pin is a regular polygonal pin (1905), a rectangular, polygonal pin end fixed movable shaft (1907) - end, and the movable shaft (1907) is fixed at the other end of the spring baffle (1908), spring baffle 1908) is provided with a return spring (1909) between the base (5); or the abutting block with a fixed distance variation, the base (5) pin is matched with the cylindrical pin, and the pin head of the cylindrical pin is an active block Block, the movable stop is at least two sides of the pin head, and the distance from the side to the central axis of the pin is different, forming an active block with a fixed distance variation, and at least one limit corresponding to the side of the movable block is arranged on the base (5) Surface, the limiting surface is combined with the cylindrical pin to position the movable stopper; or the stopper (19) Forming the plane of the groove holding the K-wire (1991), providing a threaded hole perpendicular to the plane, matching the threaded rod (1992) in the threaded hole, the threaded rod (1992) and the plane (1991) Hold the K-wire.

12. The orthopedic needle bender according to claim 10, wherein: the base (5) is integrally fixed with the side of the forceps of the forceps, and the other side of the forceps is used as a guide rod ( 9), the crank (3) fixed crank (11), the guide rod (9) and the crank (11) linkage, the guide rod (9) and the crank (Π) linkage, the guide rod (9) and the crank (滑块) is provided with a slider (10) linkage; or the base (5) is integrally integrated with the clamp head side of the pliers, and the other side of the clamp head serves as a guide rod (9) on the rotating shaft (3) Fixed crank (11), linkage between guide rod (9) and crank (11), linkage between guide rod (9) and crank (Π), and cylindrical pin between guide rod (9) and crank (Π) The groove is interlocked; or the base (5) is integrally integrated with the side of the pliers of the pliers, the other side of the pliers is used as a guide rod (9), and the crank (11) is fixed on the rotating shaft (3), the guide rod (9) linkage with the crank (11), the linkage between the guide rod (9) and the crank (Π), and the cylindrical pin and the groove are arranged to cooperate with the guide rod (9) and the crank (Π), the cylindrical pin Linked with the slot, the song (Π) is provided with a double-layer hanging ear groove (ΙΠ), the guide rod (9) is provided with a double convex cylindrical pin (91), and the double convex cylindrical pin (91) is attached to the double-layer hanging ear groove (ΙΠ); or The rotating shaft (3) is connected with the main rotating shaft (33) of the pliers by gear meshing; or the rotating shaft of the guiding rod (9) is interlocked with the handle (82), which is a rotating shaft and a handle of the guiding rod (9) Between the rotating shafts of (82), the meshing gears (91), (92) are provided; or the rotating shaft of the guiding rod (9) is interlocked with the handle (82), which is the rotating shaft and the handle of the guiding rod (9) ( 82) Between the shafts, set the fork.

13. The orthopedic needle bender according to claim 10, wherein: one side of the base (5) is integrally integrated with one side (501) on both sides of the clamp head, and the jaws on both sides are clamped. The intersection point is located within 45 degrees of both sides of the center line of the groove holding the Kirschner wire, and the other side of the clamp head serves as a connecting rod (502), a connecting member of the guide rod (502) and the dial block (6) ( 601) linkage between.

The orthopedic needle bender according to claim 13, wherein: the intersection of the two side clamp heads is an articulation axis A (331), the guide rod (502) and the dial block (6) The connecting members (601) are interlocked, and the end of the guiding rod (502) is hinged with the connecting member (601), and the guiding rod is a telescopic guiding rod (5020) for rotating with the dial block (6), wherein the guiding rod is The telescopic guide rod has two guide rods, and the two guide rods form a telescopic sliding rod (5022) through a slide rod (5021); or the intersection point of the two side clamp heads is a slider mechanism, The guiding rod (502) is interlocked with the connecting piece (601) of the dial block (6), and the end of the guiding rod (502) and the connecting member (601) are hinged by the hinge shaft (332), the slider mechanism, a slider mechanism that fits the pin (331) in the strip groove (5024); or the intersection of the two side clamp heads is a slider mechanism, and the connecting rod of the guide rod (502) and the dial block (6) ( Between the 601), the end of the guiding rod (502) and the connecting member (601) are hinged by the hinge shaft (332), and the slider mechanism is provided with a supporting hole (5025) for the side (501) of the clamping head, Support guide (502) in support hole (5025) Sliding while rotating; or the intersection of the two side clamp heads is hinged by the hinge axis A (331), and the guide rod (502) is interlocked with the connecting piece (601) of the dial block (6), the guide rod ( 502) The end portion is connected to the connecting member (601) as a slider mechanism, and the slider mechanism is a slider mechanism that fits the pin (332) in the strip groove (5023).