CN201617884U - Knotting machine used in laparoscopic surgery - Google Patents

Abstract

The utility model discloses a knotting machine used in laparoscopic surgery, which comprises a handle. The handle is connected with an outer tube, a slim tube is sleeved in the outer tube, a sliding component is disposed inside the handle, the rear end of the slim tube is connected with the sliding component so as to lead the front end of the slim tube to extend or retract at the front end of the outer tube during a sliding process, the front end of the slim tube is bent elastically when extending out of the front end of the outer tube so as to form at least two circles of helical coils, and a thread for surgical dressing penetrates through the slim tube. A clip clamps the end of the surgical dressing thread after axially penetrating through the center of the helical coils, the slim tube retracts to the outer tube, the dressing thread forms a circle or more than two circles of windings, the end of the outer tube pushes a winding knot to a surgical ligature portion so as to ligature firmly, and the number of the helical coils can be selected by selecting a positioning fastening groove, thereby forming dead knot rapidly and reliably. The knotting machine realizes rapid and convenient knotting in a narrow-view deep surgery such as the laparoscopic surgery.

Description

The wire twister that uses in the laparoscopic surgery

Technical field

This utility model relates to the wire twister that uses in the laparoscopic surgery.

Background technology

Therefore laparoscopic surgery needs aid because the working place is little, and the visual field is little, and the wrapping difficulty of postoperative is big when knotting.Chinese patent application prospectus CN1444909A discloses a medical Knotter applicable deep part, has one can replace stock and a handle of being convenient to grip of pointing, and in the leaded hole of the front end of stock, there is the ligature tightening device rear end.The disclosed wire twister of CN101185584 is a spirillum.The disclosed wire twister of CN101214162 is made up of spiral coil and handle bar, and an end of spiral coil is fixed on handle bar one end, and the other end of spiral coil is provided with through wires hole, and suture is fixed on the end through wires hole of spiral coil, and the other end of suture connects suture needle.Wire twister in the above-mentioned description can be wound in knot to line in the knotting process, but need shift the surgical ligation position onto and knot is beaten in fact by the difficult knot that will form, and therefore the knot that also needs a bar-shaped knot rod to form is usually shifted the surgical ligation position onto.

Summary of the invention

The purpose of this utility model is to provide the wire twister that uses in a kind of laparoscopic surgery, and this wire twister can be wound in knot with line, and the knot that will form is shifted the surgical ligation position onto simultaneously.

This wire twister comprises handle, handle connects outer tube, tubule is enclosed within this outer tube, slide unit is arranged in the handle, the rear end of tubule connects this slide unit so that make the tubule front end stretch out or withdraw at the outer tube front end at sliding process, elasticity curled into the spiral coil of at least two circles when the tubule front end stretched out the outer tube front end, and the line of operation wrapping usefulness passes this tubule.

Above-mentioned slide unit can be arranged in the cavity of handle, and slide unit connects spring, and the location catching groove of slide unit is arranged on the handle.

This utility model uses telescopic tubule, form a circle or the helix-coil more than two circles at front end when stretching out, clip is clamped the end of operation wrapping line after the spiral coil central authorities by axially passing of spiral coil, tubule is withdrawn in the outer tube, the wrapping line forms a circle or the above winding of two circles, the knot that the outer tube end will be twined is shifted the surgical ligation position onto, make knot solid, can select the number of turns of spiral coil by selecting the location catching groove, form fast knot rapidly reliably, in little deep, the visual field is performed the operation as laparoscopic surgery, can tie a knot easily rapidly.

Description of drawings

Fig. 1 is this utility model tubule retracted mode sketch map.

Fig. 2 is that this utility model tubule stretches out view.

The specific embodiment

Fig. 1 and Fig. 2 illustrate a kind of embodiment of the present utility model, comprise handle 1, and handle 1 connects outer tube 2.Cavity 3 is arranged in the handle 1, and slide unit 4 is arranged in cavity 3 and slides, and an end of spring 5 connects slide unit 4, and the other end connects the bottom of cavity 3.The sidepiece of slide unit 4 is connected with push rod so that the taxi operation of slide unit 4 has the slideway that can supply push rod to slide on the handle 1, and the localized location of this push rod of at least two confessions catching groove 6 is arranged on the handle 1.

Tubule 7 is enclosed within the outer tube 2, and the rear end of tubule 3 connects slide unit 4, and front end becomes straight tube and is enclosed within the outer tube 2 stretching out the spiral coil 9 that forms under the state of outer tube more than at least one circle under retracted mode.

The line 8 of operation wrapping usefulness passes tubule 3.

In the operation, slide unit 4 is positioned at the far-end of cavity 3, the front portion of tubule 7 is enclosed within the outer tube 2 fully, the front end of outer tube 2 is inserted into after the operative site, the location catching grooves 6 of push rod being shifted onto selection two circles fasten, tubule 7 front ends stretch out from outer tube 2 front ends, and form the spiral coils 9 of two circles by himself elasticity, clip passes the head of clamping line 8 after the central authorities of spiral coil 9 from the below, push rod unclamps from catching groove 6, slide unit 4 slides into the far-end of cavity 3 under spring 5 effects, spiral coil 9 stretches and is withdrawn in the outer tube, and the knot that two circles twine has just appearred in line 8, in elastic threads 8, the knot that the end of outer tube 2 progressively will form is shifted the surgical ligation position onto, forms a firm knot.Again push rod is shifted onto and selected the location catching groove 10 of a circle to fasten, tubule 7 front ends stretch out from outer tube 2 front ends, form the helix-coil 9 of a circle, clip passes the head of clamping line 8 after the central authorities of spiral coil 9 from the below, push rod unclamps from catching groove 10, slide unit 4 slides into the far-end of cavity 3 under spring 5 effects, spiral coil 9 stretches and is withdrawn in the outer tube, the knot that one circle twines has just appearred in line 8, the knot that the end of 8 while of elastic threads outer tube 2 progressively will form is shifted the surgical ligation position onto, form a firm fast knot, finish the knotting process.

Claims (2)

1. the wire twister that uses in the laparoscopic surgery, comprise handle, it is characterized in that, this handle connects outer tube, tubule is enclosed within this outer tube, and slide unit is arranged in the handle, and the rear end of tubule connects this slide unit so that make the tubule front end stretch out or withdraw at the outer tube front end at sliding process, elasticity curled into the spiral coil of at least two circles when the tubule front end stretched out the outer tube front end, and the line of operation wrapping usefulness passes this tubule.

2. according to the wire twister that uses in the described laparoscopic surgery of claim 1, it is characterized in that described slide unit is arranged in the cavity of handle, slide unit connects spring, and the location catching groove of slide unit is arranged on the handle.

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