Dilatation device for cardiology surgery

Abstract

The invention belongs to the technical field of medical instruments and particularly relates to a dilatation device for a cardiology surgery. The dilatation device comprises a rectangular support frame and four slide bars, wherein support legs are arranged at four corners of the rectangular support frame; the rectangular support frame comprises a first support plate, a second support plate, a third support plate and a fourth support plate which are connected end to end; first strip through holes are formed in the first support plate and the third support plate; second strip through holes are formed in the second support plate and the fourth support plate; the four slide bars include a first slide bar, a second slide bar, a third slide bar and a fourth slide bar; the first slide bar and the second slide bar are connected with the inside of the first strip through holes in a sliding manner and are fixed through first limiting nuts; the third slide bar and the fourth slide bar are connected with the second strip through holes in a sliding manner and are fixed through second limiting nuts. The surgery retraction is quickly achieved through arranging the four slide bars in sliding connection, and support is carried out through the support legs, so that the stability in the using process is improved.

Description

technical field [0001] The invention belongs to the technical field of medical devices, in particular to an expansion device for cardiology operations. Background technique [0002] The Department of Cardiology, that is, the Department of Cardiovascular Medicine, is a clinical department set up by the major internal medicine departments of hospitals at all levels for the diagnosis and treatment of cardiovascular and vascular diseases. The diseases treated include angina pectoris, hypertension, sudden death, arrhythmia, heart failure, premature beats, arrhythmia, Myocardial infarction, cardiomyopathy, myocarditis, myocardial infarction and other cardiovascular diseases. In the common diseases in the Department of Cardiology, intubation surgery is usually required. During intubation surgery, the cortex, ligaments and muscles at the surgical incision need to be retracted to expose the surgical field. In this process, a hook device is needed. Without affecting the doctor's fiel...

AI Technical Summary

Problems solved by technology

In the common diseases in the Department of Cardiology, intubation surgery is usually required. During intubation surgery, the cortex, ligaments and muscles at the surgical incision need to be retracted to expose the surgical field. In this process, a hook device is needed. Without affecting the doctor's field of vision during the operation, the traditional expansion device uses multiple hooks to pull the surgical incision outward from different directions. One end of the hook is fixedly connected to the operating table, and the other end hooks the surgical incision to make it move outward Although this method provides better surgical vision, it needs to control the traction strength of the hook in each direction, and there are technical problems such as complicated operation process and increased operation time

[0003] Authorized notification number CN104068899B discloses an incision dilator for thoracoabdominal surgery, including left and right halves, and an expansion piece. The left half is provided with axial holes A' and axial holes B' respectively; the right half includes the right half The front assembly and the rear assembly of the right half body; the front assembly of the right half body is provided with shaft holes B” and C”, and the shaft hole C” is a bar-shaped shaft hole; the rear assembly of the right half body is provided with shaft holes C’ and D’; A double-hole connection block is provided, and the double-hole connection holes are respectively provided with shaft holes A” and shaft holes D”; shaft holes A’ and shaft holes A” are connected together through pin A; shaft holes B’ and shaft holes B” Connected together by the pin B; the shaft hole C' and the shaft hole C" are connected together by the pin C; the shaft hole D' and the shaft hole D" are connected together by the pin D; the rear end of the left half body and the right The rear end of the half body rear assembly is respectively provided with a handle; the front end of the left half body and the front end of the right half body front assembly are respectively provided with a support arm one and a support arm two; the support arm one and the support arm two are respectively fixed with left and right expansion The two expansion pieces on the left and right are buckled to form a circular hole structure; the disadvantage of this structure is that the device needs to be manually operated, which is time-consuming and labor-intensive.

[0004] Authorized announcement number CN102860847B discloses a two-way expansion device for spinal surgery incisions, including a main expansion device and an auxiliary expansion device. The main expansion device is two expansion forks hinged at one end. A pin hole is set at the front, and the pin hole is dynamically matched with the pin shaft set at one end of the auxiliary strut; the expansion fork is provided with an adjustment strut, and the expansion fork and the adjustment strut are bidirectionally threaded; the auxiliary expansion device includes an auxiliary strut, an auxiliary expansion fork And the expansion adjustment support, the expansion adjustment support is a gear-rack structure, one end of the expansion adjustment support is provided with a dynamic expansion rod, and the dynamic expansion rod is snapped and matched with the auxiliary expansion fork; the middle part of the expansion adjustment support is provided with a drive gear seat, and the expansion adjustment support passes through the drive gear The seat and the static expansion rod are dynamically matched, and the auxiliary support rod passes through the card slot to snap fit with the static expansion rod; the expansion fork and the end of the auxiliary expansion fork are provided with tooth-shaped clamping feet; the disadvantage of this structure is that the device adopts an adjustable support The adjustment handwheel on the rod enables the expansion fork to expand the surgical incision longitudinally, and realizes the lateral expansion of the surgical incision by adjusting the distance between the static expansion rod and the dynamic expansion rod. The adjustment process is cumbersome and complicated, and the main expansion device and auxiliary expansion The device is not designed with a fixed support mechanism, so the fixation is not firm, which affects the effect of retraction surgery

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