TWI571232B - Metal wire guiding apparatus - Google Patents

Description

Wire winding guide

BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to an introducer, and more particularly to a wire wrap guide for an auxiliary wire for bone fracture fixation.

Long bone fractures of the extremities are common diseases in orthopedics. Due to accidents caused by vehicles, comminuted fractures often occur in driving or passing people. Clinically, in the case of fixed operation of long tubular comminuted fractures, it is often necessary to use bones at the same time. The wire surrounds the fractured fracture block, or the strip bone graft is bundled during bone grafting. It is biologically required to protect the periosteum and the soft tissue surrounding the fracture as much as possible to protect the blood supply of the bone, which is beneficial to fracture healing. The traditional wire fixation technique is to remove the muscles and bundle the wire around the fractured end of the cleft palate. This method requires the use of vascular clamps, periosteal strippers and other instruments, which are difficult to operate and are easily damaged around the fracture. The nerves, blood vessels and soft tissues destroy the blood supply to the fracture pieces and affect the fracture healing.

Moreover, when the wire is used for bone fracture fixation in the clinic, the tissue on the side of the broken bone is usually peeled off, and then the wire guide is used to guide the wire to bind the broken bone. The existing wire guide is usually in the shape of a hook. In use, the hook end is fixedly connected with the wire, and the hook is wound from the side of the bone to the other side, thereby achieving binding and fixing of the broken bone. However, the existing wire guide has the main problem that the two wire conduits are not docked and the metal is not used. Silk threading, which affects the operability.

Therefore, it is necessary to provide an improved wire wrap guide to solve the problems of conventional techniques.

The main object of the present invention is to provide a wire threading guide which can prevent movement between the first handle and the second handle by using the design of the positioning and fixing unit.

In order to achieve the above object, the present invention provides a wire threading guide for guiding a wire to surround a broken bone that has peeled off the surrounding tissue for subsequent buckling, and The first guiding unit includes a first handle, a first bracket and a first duct. The first bracket is disposed on the first handle. The first guiding unit includes a first handle, a first bracket and a first duct. The first conduit is configured to extend the wire, wherein the first conduit has a first straight segment and a first curved segment, the first straight segment is coupled to the first bracket, the first curved segment is from the first a second guiding unit includes a second handle, a second bracket and a second duct. The second bracket is disposed on the second handle, and the second duct is used for extending the wire. The second conduit has a second straight section and a second curved section. The second straight section is connected to the second bracket. The second curved section extends from the second straight section and is used to engage the first bend. Segment; the fixed order The first connecting member is disposed on the first bracket, the second connecting member is disposed on the second bracket and configured to be connected to the first The fixing member is used for fixing the first connecting member and the second connecting member together.

In an embodiment of the invention, the fixing member is a screw for forcibly locking the first connecting member and the second connecting member.

In an embodiment of the invention, the fixing member is a block for engaging and fixing the first connecting member and the second connecting member.

In an embodiment of the present invention, an extended length of the first handle is greater than an extended length of the first bracket, and an extended length of the second handle is greater than an extended length of the second bracket.

In an embodiment of the invention, the first handle and the second handle each have a rough surface.

In an embodiment of the invention, the first handle and the second handle are both hollow tubular.

In an embodiment of the invention, the first curved section forms a first joint surface, and the second curved section forms a second joint surface, and the first joint surface and the second joint surface abut each other.

In an embodiment of the invention, the first joint surface and the second joint surface are a pair of complementary chamfered or flat cut surfaces.

In an embodiment of the invention, the first conduit and the second conduit are combined into a U-shaped or omega-shaped passage for the wire to be stretched.

In an embodiment of the invention, the first connecting member has a guiding groove in an annular shape, and the second connecting member has a post that is inserted and engaged in the guiding groove.

As described above, the first conduit of the first guiding unit and the second conduit of the second guiding unit are a pair of complementary chamfered surfaces that can be mated to each other such that the first joint surface and the second joint surface are butted The access process is smoother, which facilitates the smooth threading of the wire; in addition, the design of the positioning fixing unit can prevent the first handle and the second handle from being between The mutual movement is generated, and the contact area and friction between the first handle and the second handle and the hand are improved through the formed rough surface to ensure that the first conduit and the second conduit are tightly connected.

100‧‧‧Wire wire winding guide

101‧‧‧Wire

102‧‧‧ bones

2‧‧‧First boot unit

21‧‧‧First handle

22‧‧‧First bracket

23‧‧‧First catheter

230‧‧‧ first joint

231‧‧‧First straight line segment

232‧‧‧First curved section

3‧‧‧Second boot unit

31‧‧‧ second handle

32‧‧‧second bracket

33‧‧‧Second catheter

330‧‧‧Second joint

331‧‧‧Second straight line segment

332‧‧‧second curved section

4‧‧‧ Positioning fixed unit

41‧‧‧First connector

411‧‧‧ Guide slot

42‧‧‧Second connector

421‧‧‧clamp

43‧‧‧Fixed parts

1 is a perspective view of a preferred embodiment of a wire threading guide of the present invention; and FIG. 2 is a perspective view of another preferred embodiment of the wire threading guide of the present invention; and Figure 2 is a schematic view of the first connector and the second connector of the wire routing guide of Figure 2.

The above and other objects, features and advantages of the present invention will become more <RTIgt; Furthermore, the directional terms mentioned in the present invention, such as upper, lower, top, bottom, front, rear, left, right, inner, outer, side, surrounding, central, horizontal, horizontal, vertical, longitudinal, axial, Radial, uppermost or lowermost, etc., only refer to the direction of the additional schema. Therefore, the directional terminology used is for the purpose of illustration and understanding of the invention.

Referring to FIG. 1 , a preferred embodiment of the wire routing guide of the present invention comprises a first guiding unit 2 , a second guiding unit 3 and a positioning. The fixing unit 4, the wire threading guide 100 is an auxiliary tool for orthopedic surgery for guiding a wire 101 around a fracture end of a bone 102 which has been peeled off from the surrounding tissue (for example, a femur) ), to facilitate the binding of the bone 102. The detailed construction, assembly relationship, and operation principle of the components of the wire routing guide 100 will be described in detail below.

Referring to FIG. 1 , the first guiding unit 2 includes a first handle 21 , a first bracket 22 and a first duct 23 disposed on the first handle 21, the first duct 23 for extending the wire 101, wherein the first duct 23 has a first straight line The segment 231 and a first curved segment 232 are connected to the first bracket 22, and the first curved segment 232 extends from the first straight segment 231.

As shown in FIG. 1 , the second guiding unit 3 includes a second handle 31 , a second bracket 32 , and a second duct 33 . The second bracket 32 is disposed on the second handle 31 . The second lead 33 has a second straight section 331 and a second curved section 332. The second straight section 331 is connected to the second bracket 32. The second conduit 33 is connected to the second bracket 32. The curved section 332 extends from the second straight section 331 and is configured to engage the first curved section 232 of the first conduit 23; wherein the first curved section 232 forms a first joint surface 230, and the second curved section 332 forms a The second joint surface 330 and the second joint surface 330 abut each other; in the embodiment, the first joint surface 230 and the second joint surface 330 are a pair of complementary chamfered surfaces.

Continuing with reference to FIG. 1 , it is further illustrated that an extended length of the first handle 21 is greater than an extended length of the first bracket 22 , and an extended length of the second handle 31 is greater than that of the second bracket 32 . The first handle 21 and the second handle 31 both have a rough surface, and the first handle 21 and the second handle 31 are hollow tubular shapes for raising the first handle 21 and the second handle. The contact area and the frictional force of the hand 31 are convenient for the user to stably hold the first handle 21 and the second handle 31.

Continuing to refer to FIG. 1 , the positioning and fixing unit 4 includes a first connecting member 41 , a second connecting member 42 , and a fixing member 43 . The first connecting member 41 is disposed on the first bracket 22 . The second connecting member 42 is disposed on the second bracket 32 and is combined with the first connecting member 41 for fixing the first connecting member 41 and the second connecting member 42 together; In the embodiment, the first connecting member 41 and the second connecting member 42 are pivotally connected to each other, and the fixing member 43 is a screw for forcibly locking the first connecting member 41 and the second connecting member 42.

Continuing with reference to FIG. 1 , it is further illustrated that the first conduit 23 and the second conduit 33 are combined into a U-shaped passage for penetrating the wire 101. In addition, the first bracket 22 is configured by the first A handle 21 is formed to extend in a curved manner, and the second bracket 32 is extended by the second handle 31 in a curved manner.

According to the above configuration, the first catheter 23 of the first guiding unit 2 and the second catheter 33 of the second guiding unit 3 are sequentially inserted into the opposite ends of the fractured end of the cleft of the bone 102 which has been peeled off from the surrounding tissue. The first joint surface 230 of the first conduit 23 and the second joint surface 330 of the second conduit 33 are butted against each other; and the first connecting member 41 and the second connecting member 42 of the positioning and fixing unit 4 are forced The first bracket 22 and the second bracket 32 are secured by being fastened together; then the wire 101 is passed through the first duct 23 and the second duct 33, thereby completing the wire 101 around the skeleton 102劈The first fracture piece 41 and the second connection piece 42 are finally released, and the first tube 23 and the second tube 33 are pulled out to surround and bind the wire 101 to the bone 102. .

With the above design, the first conduit 23 of the first guiding unit 2 and the second conduit 33 of the second guiding unit 3 are matched to each other by a pair of complementary chamfered surfaces, so that the first joint surface 230 is matched. And the second joint surface 33 is smoother in the docking access process, which facilitates the smooth threading of the wire 101. In addition, by the design of the positioning and fixing unit 4, the first handle 21 and the second handle 31 can be prevented. Interacting with each other, and improving the contact area and friction between the first handle 21 and the second handle 31 and the hand through the formed rough surface to ensure that the first conduit 23 and the second conduit 33 are tightly connected; The first guiding unit 2 and the second guiding unit 3 are respectively The integrally formed design ensures that the first and second handles 21, 31 and the first and second conduits 23, 33 are on the same plane, and no offset occurs when docking, and the overall precision is improved.

Referring to Figures 2 and 3, another preferred embodiment of the wire routing guide of the present invention substantially follows the same component name and figure number, but the difference between the two is characterized by: the wire wear A fixing member 43 of a positioning fixing unit 4 of the guiding device 100 is a block for engaging and fixing the first connecting member 41 and the second connecting member 42 of the positioning fixing unit 4, wherein the first connecting member The first connecting member 42 has a post 421. The second connecting member 42 has a post 421. As shown in FIG. 3, when the first connecting member 41 and the second connecting member 42 are combined, the post is assembled. The 421 is inserted into the guiding slot 411, and the first connecting member 41 is rotated at an angle to engage the post 421 in the interior of the guiding slot 411. At this time, the fixing member 43 is used to limit the first connecting member 41. Rotating; in addition, the first conduit 23 of the first guiding unit 2 of the wire winding guide 100 and the second conduit 33 of a first guiding unit 2 are combined into an Ω-shaped passage for the metal to be pierced. a wire 101; a first bracket 22 of the wire threading guide 100 is formed by a first handle 21 extending in a straight line, and the gold A second bracket 32 of the wire threading guide 100 is linearly extended by the second handle 31. In addition, the first joint surface 230 and the second joint surface 330 are a pair of complementary flat cut surfaces.

As described above, another preferred embodiment of the wire routing guide of the present invention can provide not only another aspect, but also the first conduit 23 and the second guiding unit utilizing the first guiding unit 2. The second conduit 33 of the third conduit 33 is a pair of complementary flat cutting surfaces that can be mated to each other, so that the first joint surface 230 and the second joint surface 33 are more smoothly connected during the docking process, which facilitates the smooth threading of the wire 101. In addition, by the design of the positioning and fixing unit 4, mutual movement between the first handle 21 and the second handle 31 can be prevented, and the first handle 21 and the second handle 31 can be improved by the formed rough surface. Hand contact area and friction to ensure the first The first guiding unit 2 and the second guiding unit 3 are integrally formed to ensure the first and second handles 21 and 31 and the first and second conduits 23 respectively. On the same plane, 33 does not shift when docked, and the overall accuracy is improved.

The present invention has been disclosed in its preferred embodiments, and is not intended to limit the invention, and the present invention may be modified and modified without departing from the spirit and scope of the invention. The scope of protection is subject to the definition of the scope of the patent application.

100‧‧‧Wire wire winding guide

101‧‧‧Wire

102‧‧‧ bones

2‧‧‧First boot unit

21‧‧‧First handle

22‧‧‧First bracket

23‧‧‧First catheter

230‧‧‧ first joint

231‧‧‧First straight line segment

232‧‧‧First curved section

3‧‧‧Second boot unit

31‧‧‧ second handle

32‧‧‧second bracket

33‧‧‧Second catheter

330‧‧‧Second joint

331‧‧‧Second straight line segment

332‧‧‧second curved section

4‧‧‧ Positioning fixed unit

41‧‧‧First connector

42‧‧‧Second connector

43‧‧‧Fixed parts

Claims (6)

A wire threading guide comprises: a first guiding unit comprising: a first handle; a first bracket disposed on the first handle; and a first duct for piercing a wire The first conduit has a first straight line segment connected to the first bracket; and a first curved portion extending from the first straight line segment; a second guiding unit comprising: a second handle; a second a bracket disposed on the second handle; and a second conduit for extending the wire, wherein the second conduit has: a second straight segment connected to the second bracket; and a second bend a segment extending from the second straight section and configured to engage the first curved section, wherein the first conduit and the second conduit are combined into an Ω-shaped passage for extending the wire; and a positioning fixing unit includes a first connecting member disposed on the first bracket; a second connecting member disposed on the second bracket for combining with the first connecting member; and a fixing member for the first connecting member a connecting member and a second connecting member are fixed together, wherein the The fixing member is a block for engaging and fixing the first connecting member and the second connecting member; wherein the first connecting member has a guiding groove in an annular shape, and the second connecting member has a post for The guiding groove is inserted, and the first connecting member is rotated by an angle to engage the post inside the guiding groove. The wire threading guide of the first aspect of the invention, wherein an extension length of the first handle is greater than an extension length of the first bracket, and an extension length of the second handle is greater than the second length An extended length of the bracket. The wire threading guide of claim 1, wherein the first handle and the second handle each have a rough surface. The wire threading guide of claim 1, wherein the first handle and the second handle are both hollow tubular. The wire threading guide of claim 1, wherein the first curved portion forms a first joint surface, the second curved portion forms a second joint surface, and the first joint surface The second joint faces abut each other. The wire threading guide of claim 5, wherein the first joint surface and the second joint surface are a pair of complementary chamfered or flat cut surfaces.