CN2645612Y - Titanium-nickel memory alloy surgical suture - Google Patents

Abstract

The utility model relates to a surgical suture, the titanium-nickel memory alloy surgical suture consists of a titanium-nickel memory alloy surgical suture which can be set different temperature and adjusts the mechanical function according to the clinical requirement, and different specification and shape suture needles connected with one end or two ends of the titanium-nickel memory alloy surgical suture are made of stainless steel material such as a triangular needle, a bent round needle, a straight round needle, and a spade shape needle, etc. The surgical suture overcomes the flaw that the applying scope of the prior surgical suture is small, and can satisfy the operation requirements such as the intradermic suture, the subcutaneously suture, the tension suture, the tendon suture, and the whirbone suture, etc. and has good biocompatibility, mechanical function and chemical stability. When used, the utility model has no suture reaction, and does not absorb the tissue fluid, and has no dyeing and pilus, the performances of the utility model can not be changed after being implanted in human body, therefore being a very idea surgical suture instrument.

Description

The ti-ni shape memory alloy suture

Technical field

This utility model relates to a kind of suture, particularly a kind of suture of making of medical titanium nickel memory alloy wire material.

Background technology

The suture material that uses on the hospital clinical has silk thread, catgut, chinlon line, polypropylene line, polyester absorbable thread, terylene establishment line, Ti-Ni alloy medical metal stitching thread at present, because purposes difference clinically, the shape of the sewing needle of its sewing method and connection is all different.Especially Ti-Ni alloy medical metal stitching thread is unworthy of can't using with sewing needle.Use clinically now a kind of be to do cosmetic surgery to connect a triangle sword-shaped needle when not having wound beauty treatment skin sewing needle at an end of ti-ni shape memory alloy silk, adopt the intradermic suture method to sew up, reach the effect that no wound is improved looks.And the cardinal principle of this product has just been utilized the shape memory function of ti-ni shape memory alloy and the super-elasticity after the phase transformation, connected triangle sword-shaped needle, and this product only limits to intradermic suture, thereby has limited range of application clinically.

Summary of the invention

The purpose of this utility model is to overcome above-mentioned shortcoming, a kind of suture of making of the ti-ni shape memory alloy silk is proposed, and at the sewing needle of the one or both ends of suture connection with the different size shape of stainless steel material making, as cutting needle, curved round needle, straight round needle, spade pin etc., thereby satisfy the needs that clinically intradermic suture, subcuticular suture, tension suture, tendon stitchings, patella stitching, breastbone stitching etc. are performed the operation.

A kind of technical solution of the present utility model is: a kind of ti-ni shape memory alloy suture, comprise a suture 1 of making of the ti-ni shape memory alloy silk, its special character is: described suture 1 also comprises the sewing needle 2 with the different size shape of stainless steel material making that is connected with the one end.

Above-mentioned sewing needle 2 is cutting needle 3, curved round needle 4, straight round needle or spade pin.

Another kind of technical solution of the present utility model is: a kind of ti-ni shape memory alloy suture, comprise a suture 1 of making of the ti-ni shape memory alloy silk, its special character is: described suture 1 also comprises two sewing needles 2 with the different size shape of stainless steel material making that are connected respectively with its two ends.

Above-mentioned sewing needle 2 is one or both in cutting needle 3, curved round needle 4, straight round needle or the spade pin.

The said suture of making of using of this utility model according to clinical ti-ni shape memory alloy silk, be basis needs clinically, by adjusting the ti-ni shape memory alloy component ratio, adopt different processing and Technology for Heating Processing, be made into the tinsel of mechanical performance and different-diameter specification in various degree, be made into Memorability, super-elasticity, inelastic stitching thread, thereby satisfy required clinically shape memory type, superly play pressing type, no bullet is tied up various uses such as type.This utility model is exactly nontoxic, no sensitization, non-carcinogenesis and excellent biological compatibility, shape memory, super-elasticity, pliability, the smoothness that has utilized ti-ni shape memory alloy, and high strength, easy to operate, the performance and the quality of easily taking out stitches, be made into a kind of good non-absorption suture.Reach the purpose of not staying foreign body in no wound, the body.

Description of drawings

In order to achieve the above object, this utility model is implemented by following structural principle.Illustrated below in conjunction with accompanying drawing.

Accompanying drawing 1: be an end Lian Zhentu of the present utility model

Accompanying drawing 2: be that two ends of the present utility model connect pin figure

Accompanying drawing 3: be operation instruction figure of the present utility model

The specific embodiment

Below in conjunction with accompanying drawing structure of the present utility model and operation principle are elaborated.

With reference to accompanying drawing 1, this utility model comprises a kind of suture 1 of making of the ti-ni shape memory alloy silk and connects a sewing needle 2 (cutting needle or curved round needle) of drawing the different size shape that stainless steel material makes at a sutural end.

With reference to accompanying drawing 2, this utility model comprises a kind of sewing needle that respectively connects the different size shape of the stainless steel material making of drawing with the suture 1 of ti-ni shape memory alloy silk making and at sutural two ends, and front end is that cutting needle 3 rear ends are for bending round needle 4 or being two loopers.

With reference to accompanying drawing 3, for after stitching finishes, cut the syringe needle at suture two ends, respectively press from both sides asutured folder 5,6 respectively.

Its operation principle mainly is to have utilized the various characteristics of ti-ni shape memory alloy to reach the stitching purpose.

One, shape memory function: adopt the different prescription melting of ti-ni shape memory alloy component ratio, the phase transformation temperature points of setting material is 33 degrees centigrade, with the shape memory of silk is that rectilinear form is heat-treated processing, adopt the intradermic suture method to sew up during stitching, line is imbedded Intradermal, refresh memory shape under the condition of human body temperature is changed into the collinear process from bending and to be produced super-elasticity, with wound both sides skin histology tightly to lumping together.

Two, superelastic properties: adopt the different prescription melting of ti-ni shape memory alloy component ratio, the phase transformation temperature points of setting material is 20 degrees centigrade, stitching thread is in superelastic under normal temperature condition, adopt the pressurization fixation during stitching, make full use of high strength, high tenacity and the smoothness of super elater, carry out the involutory and tension suture of tendon tissue.

Three, the nonelastic performance of tying up: adopt the different prescription melting of ti-ni shape memory alloy component ratio, the phase transformation temperature points of setting material is 50 degrees centigrade, stitching thread is in limp state under normal temperature condition, adopt during stitching to tie up sewing method and carry out patella, breastbone suture operation.The biology that has made full use of the ti-ni shape memory alloy material describes the property characteristics of implant into body for a long time.

Structure of the present utility model is the sewing needle that respectively connects the different size shape of the stainless steel material making of drawing in the one or both ends of the suture of ti-ni shape memory alloy silk making, and front end is a cutting needle, and the clinical operation needs are satisfied for curved round needle in the rear end.

This shows, the utlity model has following characteristics:

1, compares with various non-absorption lines, have good biology appearance property, in use do not sew up reaction, do not adsorb tissue fluid, dye-free, fibre-less.All nonabsorbable sutures do not possess shape memory function and super-elasticity, and the memorial alloy suture can be set different phase transition temperatures according to clinical needs, and the mechanical performance of adjusting suture satisfies the needs of different operations.

2, compare with various absorbable sutures, have good chemical stability, imbed the interior back of body mechanical performance and can not change, can satisfy the needs of infected wound and excessive fat myometrial suture, implant for a long time, treat behind the wound healing line to be removed, do not stay any foreign body in the body

Design of the present utility model has made full use of the various characteristics of memory alloy material, disposes the sewing needle of various different size shapes, satisfies the needs of clinical various operation stitchings, is a kind of very good medical suture instruments product.

Claims (4)

1, a kind of ti-ni shape memory alloy suture, comprise a suture (1) of making of the ti-ni shape memory alloy silk, it is characterized in that: described suture (1) also comprises the sewing needle (2) with the different size shape of stainless steel material making that is connected with the one end.

2, ti-ni shape memory alloy suture according to claim 1 is characterized in that: described sewing needle (2) is cutting needle (3), curved round needle (4), straight round needle or spade pin.

3, a kind of ti-ni shape memory alloy suture, comprise a suture (1) of making of the ti-ni shape memory alloy silk, it is characterized in that: described suture (1) also comprises two sewing needles (2) with the different size shape of stainless steel material making that are connected respectively with its two ends.

4, ti-ni shape memory alloy suture according to claim 3 is characterized in that: described sewing needle (2) is one or both in cutting needle (3), curved round needle (4), straight round needle or the spade pin.

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