A kind of medical hook line pin that can turnTechnical field
The present invention relates to a kind of medical hook line pin that can turn, belong to technical field of medical instruments.
Background technology
Arthroscope is applied to hands surgery, makes the diagnosis of carpal joint ulnar side pain, assessment and treatment have considerable progress.Carpal joint TFC complex tissue (TFCC) damage is one of common cause of carpal joint ulnar side pain.Be positioned at TFCC periphery for the damage of IB type, as shown in Fig. 3-a, ecto-entad repairs the damage of TFCC ulnar side, and under arthroscope guides, suture, through ulnar side joint capsule, through TFCC avulsion edge, is brought in carpal joint by No. 18 pins.As Fig. 3-b, with forceps, suture is taken out of from 6-U approach, then tie a knot.Note avoiding ulnar nerve sensation.
The hook line pin that existing stitching tendon adopts can not bend, and can produce inconvenience when sewing up, impact operation.
Summary of the invention
The object of the invention is to overcome above-mentioned weak point, provide a kind of sewing needle that utilizes itself progressively can bend the medical hook line pin of turning.
According to technical scheme provided by the invention, a kind of medical hook line pin that can turn, comprises hollow core conductor pin, the anti-knee of hollow core conductor pin and stitching thread and guides crochet hook; Described hollow core conductor pin comprises hands handle and needle tubing, and the lower end of needle tubing is fixed on one end of hands handle, and needle tubing is hollow, the equal blow-by in upper and lower two ends; Hands is also provided with a ratchet upper; Ratchet is wound with bending control of line needle to go between, its one end is fixed on ratchet, and the other end is fixed on needle tubing top; Described guiding bearded needle one end comprises through wires hole.
Described needle tubing is away from the side of hands handle, and top is provided with several positive triangular cuts from top to bottom, is provided with an interstitial hole below positive triangular cut; Described needle tubing is near hands side, and bottom is provided with several anti-triangular cuts from bottom to top.Described anti-triangular cut is all positioned at the below of interstitial hole, with the position non-overlapping of interstitial hole.
Described positive triangular cut is isosceles triangle, and quantity is 6-12, and angle is 15-45 degree.Described anti-triangular cut is isosceles triangle, and quantity is 2-3, and angle is 25-35 degree.
Described ratchet is with bilaterally adjustable check function.
Described needle tubing and stitching thread guide crochet hook can bending, and the anti-knee of hollow core conductor pin can not bending.The material of described needle tubing is medical stainless steel or titanium alloy.
The medical hook line pin that can turn of the present invention can carry out in sewing process to carpal joint TFC complex tissue (TFCC), stitch bite of the needle zygonema is utilized to guide crochet hook itself progressively can bend the construction features of turning, in sewing process, needle body can under the traction of Servo Control lead-in wire, syringe needle is bending through continuing after tendon, finally realize the revolution of 240 degree, syringe needle end and needle body interstitial hole are bonded into closed.Utilize the hollow passageway of needle tubing inside, hook line guiding pin just can along closed path, complete sutural passing through, finally, the line needle come up on ratchet is bending controls lead-in wire, and stitching thread guides crochet hook by the shape resilience progressively to original straight line, is unclamping while line needle bends and control lead-in wire, slowly pumpback stitching thread guides crochet hook, and stitching thread just can be stayed tendon and realize sewing up function.
Beneficial effect of the present invention: the present invention utilizes the hook line pin being fixed on hollow hook line pin distalmost end to bend the extraction length controlling lead-in wire control line, control BENDING PROCESS and the angle of bend of hollow hook line pin, and after completing sutural passing through, hollow hook line pin is under the effect of self good rebound performance, slowly be returned to original linear state, and the stitching thread that can repeat tendon passes through guiding function, convenient, flexible.
Accompanying drawing explanation
Fig. 1 component spread schematic diagram of the present invention.
Fig. 2 the present invention uses schematic diagram.
Fig. 3-aTFCC ulnar side injury suture schematic diagram.
Fig. 3-b tradition sews up schematic diagram.
Description of reference numerals: 1, hollow core conductor pin; 2, line needle is bending controls lead-in wire; 3, bearded needle is guided; 4, the anti-knee of hollow core conductor pin; 5, hands handle; 6, needle tubing; 7, ratchet; 8, through wires hole; 9, positive triangular cut; 10, interstitial hole; 11, anti-triangular cut.
Detailed description of the invention
As shown in Figure 1: a kind of medical hook line pin that can turn, comprise hollow core conductor pin 1, the anti-knee 4 of hollow core conductor pin and stitching thread and guide crochet hook 3; Described hollow core conductor pin 1 comprises hands 5 and needle tubing 6, and hands is fixed on one end of 5 in the lower end of needle tubing 6, and needle tubing 6 is hollow, the equal blow-by in upper and lower two ends; Hands is being also provided with a ratchet 7 on 5; Ratchet 7 is wound with line needle bending control lead-in wire 2, its one end is fixed on ratchet 7, and the other end is fixed on needle tubing 6 top; Described guiding bearded needle 3 one end comprises through wires hole 8.
Described needle tubing 6 is away from hands the side of 5, and top is provided with several positive triangular cuts 9 from top to bottom, is provided with an interstitial hole 10 below positive triangular cut 9; Described needle tubing 6 is near hands 5 sides, and bottom is provided with several anti-triangular cuts 11 from bottom to top.Described anti-triangular cut 11 is all positioned at the below of interstitial hole 10, with the position non-overlapping of interstitial hole 10.
Described interstitial hole 10 is Oblong notches, and after the positive triangular cut 9 on hollow core conductor pin needle tubing 6 is all closed, interstitial hole 10 just in time aimed at by the syringe needle of hollow core conductor pin 1, is closed into the shape almost closed.
Described positive triangular cut 9 is isosceles triangle, and quantity is 6-12, and angle is 15-45 degree, and the angle sum of these breach is at 210-250 degree.Described anti-triangular cut 11 is isosceles triangle, and quantity is 2-3, and angle is 25-35 degree, and the angle sum of these breach is 25-35 degree.After triangular cut whole on hollow core conductor pin 1 is closed, hollow core conductor pin will present water-drop-shaped.
Line needle bends the distalmost end controlling lead-in wire 2 and needle tubing 6, and the outside left of breach is welded and fixed, and line needle bends and controls the hands of lead-in wire 2 through hollow core conductor pin 1 after 5, and be fixed on ratchet 7, ratchet 7 is with bilaterally adjustable check function.
Described needle tubing 6 and stitching thread guide crochet hook 3 can bending, and the anti-knee 4 of hollow core conductor pin can not bending.The material of described needle tubing 6 is medical stainless steel or titanium alloy.
When the present invention uses, away from hands positive for several on the needle tubing 6 of 5 one end triangular cut 9 the line needle being subject to being fixed on needle tubing 6 far-end bend control lead-in wire 2 traction under can close, hollow core conductor pin 1 is made to produce bending in positive triangular cut 9 closed location, after adjacent multiple positive triangular cut 9 is closed one by one, the far-end of needle tubing 6 engages with interstitial hole 10 position in the middle part of needle tubing 6, forms a closed-loop path.After needle tubing 6 bends to closed-loop path, stitching thread just can be utilized to guide crochet hook 3, from the hands of needle tubing 6, the bottom inlet of 5 one end is inserted, along the cavity of needle tubing 6 inside, through the tendon needing to sew up, then wear the arrival end getting back to needle tubing 6 from closed-loop path combined mouth, finally, on stitching thread guiding crochet hook 3 after stitching thread, just can withdraw stitching thread and guide crochet hook 3, until complete sutural passing through.
When the anti-knee 4 of hollow core conductor pin resides in the cavity in hollow core conductor pin 1, can guarantee that hollow core conductor pin 1 keeps linear state, being convenient to hollow core conductor pin 1 can successfully be punctured near the tendon of needs stitching, then the anti-knee 4 of hollow core conductor pin is withdrawn at leisure, utilize hollow core conductor pin 1 hands the ratchet 7 on 5, progressively stringing lead pin is bending controls lead-in wire 2, through TFCC breach after making hollow core conductor pin 1 bending, finally forms closed wire and guides pin.
The diameter of the anti-knee 4 of hollow core conductor pin is slightly less than the cavity diameter of hollow core conductor pin 1 inside, and when the anti-knee 4 of hollow core conductor pin resides in the cavity of hollow core conductor pin 1 inside, the bending lead-in wire 2 that controls of line needle can normally use.