CN104434237A - Purse string suture tail-end tension fixing device for cardiac surgery department - Google Patents

Abstract

The invention discloses a purse string suture tail-end tension fixing device for the cardiac surgery department. The cardiac surgery is rapidly developed, but the most basic heart operation technology is still irreplaceable, purse string suture of the arterial system is a basic skill which every cardiac surgery doctor must master, the fixing manner of a preset suture thread after the purse string suture is a currently basic and important thing, the fixing uncertainty possibly causes all previous efforts to be wasted, tearing and bleeding of a finally-sutured purse can be caused by poor fixing, fixing pincers are applied in the traditional fixing technology, tension is difficult to control, the occupied space is large, and much trouble is added for an originally-narrow surgery view field. The device special for purse fixing is designed and is characterized in that before the device is used, the proximal end of a rubber tube can be cut according to the needed length, the thread penetrates through the rubber tube and a fixing head at a time after purse string suture is carried out, then the suture thread is pressed into a fixing groove to be repeatedly wound around the waist portion of the fixing head, and finally the side wall, with a bayonet, on one side of the fixing head is downwards moved for locking. By means of the multi-anti-skid-fixing method, the purse stability is guaranteed, and the occupied space is reduced.

Description

Department of cardiac surgery purse string suture tail end tensional fixation device

Technical field

The development of department of cardiac surgery has had the history of nearly 100 years, also the development time of over half a century is had in China, although along with the progress of science and technology, the invention of various advanced instrument, Minimally Invasive Surgery, robotic surgery, heart-assist device, etc., all the time not in innovation, but the position that the most basic cardiac procedures technology is not still replaced with it is in whole world extensive use, wherein the purse string suture of Arterial system is the basic skill that each cardiac surgeon must grasp, and how to fix for preset suture after purse string suture be also the comparison basis but important problem that face at present, fixing imprecisely probably cause that all that has been achieved is spoiled, the pocket that not at all easy stitching is good is torn because fixing bad meeting causes, hemorrhage, tradition technique for fixing application fixation clamps, the not only bad control of tension force, and it is large to take up room, a lot of trouble is increased for natively narrow visual area.

Background technology

The pocket tail end technique for fixing of current extensive use will be for will pass the suture through gum sleeve, (see figure 1) is stepped up by vascular forceps after tightening up pocket, there is a lot of drawback in this technology, first tension force is unstable: at present for adult patient, tremulous pulse pocket adopts special purse wire, this stitching thread in order to reduce hemorrhage and with the friction of blood vessel, the smoother that surface makes, although there have vascular forceps to clamp to be fixing, but its potential energy slided is still very large, and for thick aorta, because aorta wall is very thin, that sews up is all more shallow, add tension force large, the probability that pocket loosens increases greatly, increase the probability of intraoperative hemorrhage, and for infant patient, general use slip sews up pocket, the frictional force of slip and rubber tube is less, pocket tightness must be repeatedly adjusted in art, this performs the operation for refining cardiac, trouble very large beyond doubt, secondly, traditional this fixed form takies very large space, the pocket of general aortic cannulation will stitch two pockets, and a pocket will be sewed up in the position of intrusion pipe, and whole aortic position has three pockets, left heart attraction place needs pocket, superior vena cava, postcava respectively need a pocket, and calculating is got off, and need 6 vascular forcepss to participate in fixing, this is for the visual area only having 1 ~ 1.5 square decimeter, and the foreign material irrelevant with intracardiac operation are too many, in addition, for the patient that the outer membrane lung of application durative is auxiliary, need delayed sternal closure, in order to reduce infection probability, all fixtures are needed to be placed in thoracic cavity, only pipeline is left to external, skin wants complete stitching, so vascular forceps fixing means must be abandoned, and do not have product can replace the fixed effect of vascular forceps at present, applicant unit one belongs to uses following methods at present: cut by transfusion set little "T"-shaped filtering head, insert rubber tube tail end, then purse wire is wrapped over filter root repeatedly, (see figure 2) is fixed again in outside silk thread ligation, although this method temporarily solves problem, but we have found a lot of drawback at work, 1, each blood exchange transfusion set only has a "T"-shaped filtering head, wipe out rear whole blood exchange transfusion set can only throw away, cause very large waste, 2, this fixed form being wrapped in rubber tube outer end is also definite not, often hemorrhage because of line pine, must again be wound around, 3, the method that outside silk thread ligation is fixed bothers when detaching device very much, probably damages slip, cause pocket of cannot tiing a knot while cutting off static line.

Summary of the invention

According to above problem, design one is exclusively used in pocket stationary device, this device is the hollow design (see figure 3) of rubber tube and fixing head one, before use, the proximal part of rubber tube is pruned according to required length, after purse string suture, line is once passed rubber tube and fixing head, then (holddown groove inside is anti-skidding rubber structure stitching thread to be compressed into the holddown groove at fixing head edge, play preliminary anti-skidding effect), again the waist of stitching thread in fixing head is wound around repeatedly, because the waist surface of fixing head is the anti-slip rubber that one deck is thin, so suture is fixed again after being wound around, finally sidewall with bayonet for fixing head side is put down that locked (inner side of sidewall is also anti-slip rubber, anchor suture again), the stability of the pocket that multiple anti-skidding fixing method had both ensured in this, reduce taking of space again.

Accompanying drawing illustrates:

Fig. 1 is the pocket tail end technique for fixing of at present application, wherein 1: aorta; 2: pocket; 3: rubber tube; 4: vascular forceps;

Fig. 2 is the pocket tail end technique for fixing that delayed sternal closure patient adopts, wherein 1: aorta; 2: pocket; 3: rubber tube; 4: the "T"-shaped filtering head of blood exchange transfusion set;

Fig. 3 is the novel pocket tail end fixture that inventor proposes, wherein 1: tailorable rubber tube proximal part; 2: sidewall with bayonet outside holder; 3: the anti-slip rubber layer of inner side; 4: the draw-in groove of retainer edge strip anti-slip rubber.

Claims (4)

1. this device adopts rubber tube and fixing head Integral design, reduces scattered number of instruments, has evaded scattered apparatus Counts, reduces the risk left in body.

2. this device rubber tube part can be cut out arbitrarily, is applicable to the application of different length.

3. this device fixing head sections inner side adopts thin layer anti-slip rubber, has draw-in groove, waist, outside fixed arm triple fixing respectively, effectively prevents suture from sliding.

4. fixing head can be positioned in thoracic cavity, reduces space hold.