CN201888845U - Orthopaedic minimally invasive steel wire introducer - Google Patents

Abstract

The utility model relates to an orthopaedic minimally invasive steel wire introducer. Left and right handles are movably connected through a spindle; curved steel wire conduits are arranged on the handles and sleeved and matched with each other at the heads; and fasteners and oval collars are arranged on the handles. With the structure, the orthopaedic minimally invasive steel wire introducer is simple and efficient to use, does not need large operation incision, realizes the visual operation of the leading-in and leading-out of the steel wire, has small damage to soft tissues and is adapted to the steel wire circular reposition and bundling fixation in the orthopaedic minimally invasive operation.

Description

Orthopaedics Wicresoft wire introducer

Technical field

This utility model relates to a kind of orthopedic medical device, relates in particular to a kind of orthopaedics Minimally Invasive Surgery that is used for the bone piece is resetted and fixed steel wire guiding device.

Background technology

The bone block reset is the clinical common operation of orthopaedics, in general, to transecting type fracture or the not high person of fracture degree of grinding, just can obtain well to reset with screw steel plate, intramedullary pin.But the violence of wound sometimes is too big really, especially much comminuted, oblique or spiral fracture, and by steel plate or intramedullary pin, fracture fragments may be difficult to reset to satisfaction merely.

Steel wire is meant with steel wire fragment is tightly bundled around tying up, can help first to reset, play bone block reset and keep fixed effect simultaneously, and tighten steel wire and can make and produce pressurization between the GUSUIPIAN, therefore the healing that helps fracturing is becoming the common technology of bone surgery.But steel wire is around tying up operating difficulties, because fracture end has a large amount of muscle to adhere to, conventional metals silk technique for fixing is a method of peeling off muscle by extensive incision, direct-view down, the fracture end that wire rings is walked around splitting encircle prick fixing, be easy to damaged bone folded block nerve, blood vessel and soft tissue on every side like this, and the blood that destroys sclerite is transported the healing of influence fracture.Therefore how to realize steel wire reducing damage simultaneously as far as possible, become steel wire around a difficult problem of tying up operation to surrounding tissue easily around fracture site.

Wire introducer can well address this problem, as the disclosed wire introducer of patent CN2812858Y, by a shackle steel wire is imported, by a hook that has sharp keen point steel wire is pulled out then, because the existence of sharp keen tip still can cause the damage of portion of tissue.Patent CN201426770Y discloses a kind of hook-type wire introducer, does not need with sharp hook steel wire to be pulled out, and has solved sharp problem in the face of surrounding tissue damage, but when being to use this guide, operation inconvenience, so operating time can be long, inefficiency.

Patent CN201082190Y, CN2688239Y and CN2836737Y disclose a kind of pincerlike wire introducer respectively, at the handle head end conduit are installed, and by conduit steel wire are imported; Therefore easy to use, and can not cause damage in theory to surrounding tissue.But often occur the involutory inaccurate problem of conduit in the use, need extensively to cut or part direct-view operation down.

Therefore, along with current Wicresoft theory the applying of clinical treatment long bone branch comminuted fracture, need the corresponding novel Wicresoft of design wire introducer.

The utility model content

This utility model provides a kind of orthopaedics Wicresoft wire introducer of pincer, by the conduit head end is coincide and mounting clip pieces, can avoid the swing of conduit and produce the connection deviation, accuracy and effectiveness that steel wire is derived obviously improve, can be around skin incision be looped around steel wire sclerite simply and effectively, minimizing is to the destruction of sclerite blood fortune, the immediate union that helps fracturing.

This utility model orthopaedics Wicresoft wire introducer, comprise two curved wire conduits, left handle and right handles, described left handle and right handles flexibly connect by axis, the afterbody of described catheter wire is installed in respectively on the left and right handle, wherein, catheter wire head end on the left handle is towards right opening, and the catheter wire head end on the left handle is towards left opening, and the opening of two catheter wire head ends can dock mutually; Catheter wire has opening along the tail end of handle orientations.

Wherein, described handle is preferably the crank throw shape, and described axis is installed in the head of handle.

Further, the head of one of them handle also is equipped with the fastener of opening towards another handle, and the thickness of its A/F and handle is complementary, so that handle just snaps in the fastener opening.

Wherein, described handle afterbody is provided with the ellipticity collar near the position of bottom, and the described collar selects the less but material that hot strength is higher of elasticity to make, as the metal collar etc.

Further, described handle afterbody also is provided with fixed card slot near the position of bottom, and the described collar is nested with in fluting.

Wherein, described catheter wire tail end extends to the flex point place of crank throw along the handle outside.

According to a kind of preferred implementation of above-mentioned wire introducer, the external diameter of the internal diameter of one of them catheter wire head end opening and another catheter wire head end opening is complementary, thereby realizes that two catheter wire head ends are intussusception and coincide.

Above narration in, the tail end of catheter wire (portion) be described wire introducer end (or part) near operation technique person hand when inserting in the body, and head end (portion) refers to the end (or part) away from operator's hand.Wherein, it is the boundary that the afterbody of crank throw shape handle refers to the flex point, near the part of operator's hand; Head refers to the part away from operator's hand.

This utility model wire introducer flexibly connects left and right sides handle by axis and forms pincer, and two handles are inserted respectively in the body during use, connect by axis then, do not need bigger operative incision, and are easy to use.Fastener is installed simultaneously, can guarantees the stability of handle, do not swing to cause producing and be connected deviation and handle and catheter wire can not occur.

This utility model wire introducer can also be provided with the collar in the position of the close bottom of handle, during use the collar is nested with in the handle bottom, has guaranteed that conduit head end intussusception coincide, and can not occur becoming flexible; And the catheter wire extension is longer, and the importing of steel wire and derivation all can be carried out under external direct-view, have avoided occurring big soft tissue injury, and it is easier to operate.

By above-mentioned design, easy to use, the good stability of this utility model orthopaedics Wicresoft wire introducer is applicable to that orthopaedics Wicresoft steel wire is around tying up operation.

Description of drawings

Fig. 1 is this utility model orthopaedics Wicresoft wire introducer structural representation;

Fig. 2 is this utility model orthopaedics Wicresoft wire introducer axis structural representation;

Fig. 3 is this utility model orthopaedics Wicresoft wire introducer fastener structural representation;

Fig. 4 is this utility model orthopaedics Wicresoft wire introducer catheter wire head end structural representation.

The specific embodiment

With reference to Fig. 1 ~ Fig. 4, this utility model orthopaedics Wicresoft wire introducer is specifically described.

Embodiment 1:

See figures.1.and.2, this utility model orthopaedics Wicresoft wire introducer comprises left handle 2, right handles 1 and two catheter wires 3.Two handles flexibly connect by axis 4 and form pincer, and axis shape and structure are as shown in Figure 2.

Wherein, catheter wire 3 is circular-arc, and the afterbody of two catheter wires is installed in respectively on left and right two handles, the head end opening that is installed in the catheter wire 3 on the left handle 2 is towards the right side, and be installed in head end opening by catheter wire 3 on the handle 1 towards a left side, two catheter wire head end openings dock mutually form heart-shaped.

The tail end of catheter wire 3 is along the handle orientations opening.

During use, about two handle head portions a catheter wire is installed respectively; Through skin incision, be close to the surface of bone both sides and insert left handle 2 and right handles 1 respectively, the fastening by axis 4 links to each other two handles then, two handles of holding with a firm grip, the head end butt joint of two conduits 3.Steel wire is imported from a side catheter wire tail end opening, and steel wire passes through to derive from the tail end opening of opposite side conduit behind two conduits, takes out handle then.

Because two handles flexibly connect by axis, therefore, only need very little operative incision two handles can be inserted in the body respectively, and then fuse, very easy to use, the misery of having avoided big otch to bring to the patient.

As shown in Figure 1, handle 1 and 2 is preferably the crank throw shape, is more suitable for taking of staff and holds.Axis 4 is installed in the head of crank throw shape handle.The tail end that catheter wire is extended extends to along handle near the flex point of crank throw.

Because by long extension, all can carry out under external direct-view during use by the importing of steel wire and derivation along handle for the tail end of catheter wire 3, operation is more prone to, and soft tissue injury is little.

Embodiment 2:

On the basis of embodiment 1, this utility model orthopaedics Wicresoft wire introducer is nested with an ellipticity collar 6 in the position of the close bottom of afterbody of handle, and the collar 6 should select hard, high tensile strength materials to make, as the metal collar.

As shown in Figure 1, simultaneously can fixed card slot 7 be set, the collar 6 is nested with in draw-in groove 7 in the position that handle is nested with the collar.

During use, handle 1 and 2 inserted in the body and by axis 4 link into an integrated entity, the handle afterbody is nested with at fixed card slot with the collar 6, the head end butt joint of two catheter wires 3.

Replaced staff with a collar 6, thereby the uncertainty of exerting oneself when having avoided staff to hold can be guaranteed coincideing of conduit head end.

Embodiment 3:

With reference to Fig. 4, on the basis of embodiment 1 and 2, a side conduit head end is thinner, and opposite side conductor housing end opening diameter is bigger, and promptly a side conductor housing end opening internal diameter and opposite side conductor housing end opening is complementary.

When the collar 6 was nested with in fixed card slot, the side conduit that the head end opening is thinner inserted the head end of opposite side conduit with its head end, thereby had realized that two catheter wire 3 head ends are intussusception and coincide.Import in the steel wire side conduit that from the beginning end opening is thinner.

The catheter wire intussusception coincide and designs, and has guaranteed the accuracy that catheter wire axially connects.

Embodiment 4:

With reference to Fig. 3, on the basis of embodiment 1,2 and 3, left handle 2 is provided with a fastener 5, and the opening of fastener 5 is towards right handles 1.Wherein, fastener 5 is arranged on the below of axis 4, and its A/F and right handles thickness are complementary.

During use, left handle 2 and right handles 1 respectively through skin incision, are close to the surface of bone both sides and are inserted respectively in the body, two handles are connected in one by axis 4; The handle of holding with a firm grip, right handles 1 snaps in the opening of fastener 5; The collar 6 is nested with in card 7, and the intussusception of two catheter wires coincide.

Because the existence and the axis of fastener are fixed two handles together, can avoid left and right two handles and be connected swinging of catheter wire on the handle, deviation can not appear connecting, further guaranteed accuracy and effectiveness that catheter wire connects.

Steel wire is imported from a side catheter wire, derive from opposite side, take out two handles then, steel wire Wicresoft is around the sclerite success.

This utility model orthopaedics Wicresoft wire introducer is simple to operate efficient, stability and accuracy height, and the importing of steel wire and deriving is operated under looking at straight as can be known, and does not need big operative incision, is applicable to that steel wire in the orthopaedics Minimally Invasive Surgery is around tying up.

More than specific embodiment of the utility model is described in detail, but it is as example, this utility model is not restricted to specific embodiment described above.To those skilled in the art, any equivalent modifications that this practicality is carried out and substituting also all among category of the present utility model.Therefore, not breaking away from impartial conversion and the modification of being done under the spirit and scope of the present utility model, all should be encompassed in the scope of the present utility model.

Claims (8)

1. orthopaedics Wicresoft wire introducer, it is characterized in that, comprise left handle and right handles and two curved wire conduits of flexibly connecting by axis, described two catheter wire afterbodys are installed in respectively on the left and right handle, wherein, catheter wire head end on the left handle is towards right opening, and the catheter wire head end on the right handles is towards left opening, and the opening of two catheter wire head ends can dock mutually; Described catheter wire has opening along the tail end of handle orientations.

2. wire introducer according to claim 1 is characterized in that, the external diameter of the internal diameter of one of them catheter wire head end opening and another catheter wire head end opening is complementary.

3. wire introducer according to claim 1 is characterized in that, described handle is the crank throw shape, and described axis is installed in the head of handle.

4. wire introducer according to claim 3 is characterized in that the head of one of them handle also is equipped with fastener, and described fastener opening is towards another handle.

5. wire introducer according to claim 4 is characterized in that, the thickness of described fastener A/F and handle is complementary.

6. wire introducer according to claim 3 is characterized in that, described handle afterbody is provided with fixed card slot near bottom position.

7. wire introducer according to claim 6 is characterized in that, is equipped with the ellipticity collar in the described draw-in groove.

8. according to the wire introducer shown in the claim 3, it is characterized in that described catheter wire tail end extends to the flex point place of crank throw along the handle outside.

Images