CN105380688A - Retractor - Google Patents

Abstract

The invention provides a retractor. The retractor comprises a cylindrical film made of flexible material, an upper ring located at the opening of the upper portion of the cylindrical film and made of flexible material, and a lower ring located at the opening of the lower portion of the cylindrical film and made of flexible material. The lower ring is a hollow pipe. An alloy wire is arranged in the hollow pipe. The upper ring is of a dual-pipe structure. The dual-pipe structure comprises a first branch pipe and a second branch pipe which are vertically connected in parallel. An alloy wire is arranged in at least one of the first branch pipe and the second branch pipe. By means of the retractor, no constrictive injuries can be caused to tissue of an incision retracted face, the protection and hemostasis functions are achieved for incision tissue, incision tissue can be isolated and protected in a sealed mode when an incision is retracted, and cross infection probably caused during surgery is avoided.

Description

Retractor

Technical field

The present invention relates to a kind of surgical operating instrument, relate to a kind of in order to retract tissue specifically, appear surgical field of view, be convenient to the retractor detected and operate.

Background technology

Retractor (retractors) is a kind of surgical operating instrument, in order to retract tissue, appears surgical field of view, is convenient to detect and operate.Conventional has metal retractors and soft retractor.Metal retractors shortcoming is that shape is fixed, wound is comparatively large and comparatively large to the repressive damage of tissue, as periosteum injury, and bone nerve injury.On the other hand because the restriction of its shape can stop surgical field of view to a certain extent, affect operation technique.And soft retractor can not carry out sealing insulation blocking to incision tissue.

The flexible ring of soft retractor that prior art exists is inserted in otch, and can the operative incision of the various shape of extraordinary adaptation, for each position of whole otch provides uniform support force.

The soft retractor of prior art is used for retracting soft tissue in Minimally Invasive Surgery, to appear tissue, blood vessel, internal organs etc., provides certain operation technique space and the visual field.

Its structure is middle part one Nitinol becket, and becket surrounding is stained with four traction belts, and the far-end bottom surface of every bar traction belt scribbles adhesive sticker.

Using method is as follows:

A) retractor of incision length and retractor similar diameters used is chosen;

B) catch the quoit 1 (see Fig. 1) of soft retractor with finger and it is pinched ovalisation;

C) quoit is put into until whole quoit enters completely from incision;

D) pick up two relative meches 2 respectively, draw to the direction outside otch, make soft tissue form oval surgical field of view;

E) tear the antiseized paper slip below meche, nonwoven strip is fixed on skin overlay film.

Also there is some problems and risk in the soft retractor of prior art.Though soft retractor can not produce any repressive damage to the tissue of otch distraction surface; but support force leans on four cloths of quoit surrounding to be fixed on otch skin; due to the limitation of strip width; incision tissue region between two traction belts cannot be coated; sealing insulation blocking can not be carried out to incision tissue, issuable cross infection in operation cannot be avoided.Another risk factor existed are that the bonding force of traction belt to skin surface is spent and light or overweightly all to be impacted on clinical manipulation.

Summary of the invention

The object of this invention is to provide a kind of retractor; it can not produce any repressive damage to the tissue of otch distraction surface; to incision tissue, there is protection, hemostatic function, sealing insulation blocking can be carried out to incision tissue leading scalloping while, avoid issuable cross infection in operation.

The invention provides a retractor, it comprises: the tubular membrane that flexible material is made; The pressed on ring that the flexible material being positioned at described tubular membrane upper opening place is made; The lower ring that the flexible material being positioned at described tubular membrane lower openings place is made; Wherein, described lower ring is the pipe of a hollow; B alloy wire is provided with in the pipe of described hollow; Described pressed on ring is double pipe structure, and this double pipe structure comprises the first arm and the second arm that connect side by side up and down; B alloy wire is provided with at least one of first arm and the second arm.

Selectively, described flexible material is PU (polyurethane) material.Certainly, the flexible material that various piece uses also can be different.

Selectively, described pressed on ring is annulus; Described lower ring is annulus.

Selectively, the pipe of the hollow of described lower ring is connected to each other by the joint connecting structure at the pipe two ends of described hollow and is formed as annular.

Selectively, the double pipe structure of described pressed on ring is also connected to each other by the joint connecting structure at described double pipe structure two ends and is formed as annular.

Selectively, described joint connecting structure is fastener matching structure or over-surplus fit structure.

Selectively, described B alloy wire is nitinol alloy wire.

Selectively, described retractor also comprises for closed pressed on ring, the end cap that is removably connected with pressed on ring.

Because upper ring material is flexible material, described pressed on ring can overturn downwards, is rolled by tubular membrane, as rolled up sleeves.

The advantage of apparatus of the present invention comprises: rolled by tubular membrane by overturning pressed on ring downwards, tubular membrane is stretched, tensioning, makes tubular membrane strut incision tissue, and is coated on completely in incision tissue, to reach hemostatic function and sealing isolation effect.The end cap adnexa of corresponding specification can be selected in addition to close pressed on ring, can seal completely when pneumoperitoneum is performed the operation.

Operationally, pressed on ring adopts two-tube form, and easier clinical staff carries out turning operation.And pressed on ring outwards overturn, tubular membrane is gapless plane with two-tube connection, such operating theater instruments does not have obstacle when passing in and out otch.

When performing the operation complete taking-up retractor, only need take out the lower ring of inserting, avoiding the impact that the bonding skin-on-skin of cloth and operation cause.

Accompanying drawing explanation

Fig. 1 is the soft retractor schematic diagram of prior art.

Fig. 2 A is retractor schematic diagram of the present invention.

Fig. 2 B is the sectional view at pressed on ring joint connecting structure place.

Fig. 2 C is the sectional view at lower ring joint syndeton place.

Fig. 3 is end cover structure schematic diagram.

Fig. 4 A, Fig. 4 B, Fig. 4 C are the schematic diagram of retractor operation principle of the present invention.

Fig. 5 is the schematic diagram after end cap is installed.

Detailed description of the invention

Retractor of the present invention can be used as disposable sterile closed traction apparatus and uses.

Retractor of the present invention can not produce any repressive damage to the tissue of otch distraction surface; to incision tissue, there is protection, hemostatic function; sealing insulation blocking can be carried out to incision tissue leading scalloping while, avoid issuable cross infection in operation.

Retractor provided by the invention comprises: the tubular membrane that flexible material is made; The pressed on ring that the flexible material being positioned at described tubular membrane upper opening place is made; The lower ring that the flexible material being positioned at described tubular membrane lower openings place is made; Wherein, described lower ring is the pipe of a hollow; B alloy wire is provided with in the pipe of described hollow; Described pressed on ring is double pipe structure, and this double pipe structure comprises the first arm and the second arm that connect side by side up and down; B alloy wire is provided with at least one of first arm and the second arm.

Selectively, described flexible material is PU (polyurethane) material.Certainly, the flexible material that various piece uses also can be different.

Selectively, described pressed on ring is annulus; Described lower ring is annulus.

Selectively, the pipe of the hollow of described lower ring is connected to each other by the joint connecting structure at the pipe two ends of described hollow and is formed as annular.

Selectively, the double pipe structure of described pressed on ring is also connected to each other by the joint connecting structure at described double pipe structure two ends and is formed as annular.

Selectively, described joint connecting structure is fastener matching structure or over-surplus fit structure.

Selectively, described B alloy wire is nitinol alloy wire.

Selectively, described retractor also comprises for closed pressed on ring, the end cap that is removably connected with pressed on ring.

Because upper ring material is flexible material, described pressed on ring can overturn downwards, is rolled by tubular membrane, as rolled up sleeves.

Rolled by tubular membrane by overturning pressed on ring downwards, tubular membrane is stretched, tensioning, makes tubular membrane strut incision tissue, and is coated on completely in incision tissue, to reach hemostatic function and sealing isolation effect.The end cap adnexa of corresponding specification can be selected in addition to close pressed on ring, can seal completely when pneumoperitoneum is performed the operation.

The structure of a specific embodiment of the present invention is described in detail below by accompanying drawing.

See Fig. 2 A, retractor of the present invention comprises pressed on ring 11, lower ring 13, tubular membrane 12.

Wherein pressed on ring 11 is two-tube annulus, i.e. the first arm 14 and the second arm 15, see Fig. 2 B, two-tube stacked up and down, connected by the joint connecting structure 21 of two quick connector shapes, be embedded with liner nitinol alloy wire 22 at the second arm 15 intracavity of pressed on ring, retract ability for what improve product.Pressed on ring is made up of PU (polyurethane) material.Clinical manipulation overturns downwards pressed on ring, tubular membrane is rolled, as rolled up sleeves.Until tubular membrane struts otch completely.

See Fig. 2 C, lower ring 13 is the annulus of inserting in otch, and the PU pipe being positive round by a cross section is formed, and tubing two ends are connected by the joint connecting structure 23 that is inserted soon, are embedded with liner nitinol alloy wire 24 equally at intracavity, retracts ability in order to what improve product.

Tubular membrane 12 is welded into tubular, is attached to the outside of upper and lower ring, is made up of PU (polyurethane) material.Due to the elasticity of tubular membrane and the seal of material itself, can protect and isolation effect incision tissue.

Retractor of the present invention can comprise end cap (see Fig. 3), and it is as adnexa, plays sealing cut effect when pneumoperitoneum is performed the operation.This end cap comprises: lid 32, tympanum 31 and locking handle 33.

The operation principle of retractor of the present invention is described below:

Step one:

See Fig. 4 A, lower ring is pinched flat ovalisation, push the otch of operation, under slow releasing, ring makes its elasticity launch, under being stuck in notch inner wall;

Step 2:

See Fig. 4 B, overturn pressed on ring downwards in the direction of the arrow, the pipeline of tubular membrane is constantly shortened.The radial tension of pipeline constantly increases, until otch is expanded fully and protected;

Step 3:

See Fig. 4 C, tubular membrane props up otch completely, forms circular surgical field of view.

When needs, can end cap be placed in pressed on ring, close pressed on ring, then press locking handle 33 by end caps in pressed on ring.As shown in Figure 5.

Retractor of the present invention can have following characteristics:

A) product structure is by two annulus, and a tubular membrane is formed.By inserting in otch by lower ring, upset pressed on ring reaches the scalloping effect of support.

B) tubular membrane is in order to strut otch and coated cut surface.

C) operation by overturning pressed on ring realizes otch and struts.

D) upper and lower ring can be connected by the joint inserting shape soon.

E) pressed on ring is two-tube.

F) liner nitinol alloy wire is embedded with at the tube chamber of lower ring and a tube chamber of pressed on ring.

G) the end cap adnexa of corresponding specification can be furnished with, play sealing cut when pneumoperitoneum is performed the operation.

The above, only by way of example in the present invention preferably embodiment be described, be not intended to limit scope of patent protection of the present invention.Every utilize description of the present invention and accompanying drawing content to do equivalent structure or the conversion of equivalent flow process, or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.

Claims (8)

1. a retractor, is characterized in that, described retractor comprises:

The tubular membrane that flexible material is made;

The pressed on ring that the flexible material being positioned at described tubular membrane upper opening place is made;

The lower ring that the flexible material being positioned at described tubular membrane lower openings place is made;

Wherein, described lower ring is the pipe of a hollow; B alloy wire is provided with in the pipe of described hollow;

Described pressed on ring is double pipe structure, and this double pipe structure comprises the first arm and the second arm that connect side by side up and down; B alloy wire is provided with at least one of first arm and the second arm.

2. retractor as claimed in claim 1, it is characterized in that, described flexible material is polyurethane material.

3. retractor as claimed in claim 1, it is characterized in that, described pressed on ring is annulus; Described lower ring is annulus.

4. retractor as claimed in claim 1, is characterized in that, the pipe of the described hollow of described lower ring is connected to each other by the joint connecting structure at the pipe two ends of described hollow and is formed as annular.

5. retractor as claimed in claim 1, is characterized in that, the described double pipe structure of described pressed on ring is connected to each other by the joint connecting structure at described double pipe structure two ends and is formed as annular.

6. the retractor as described in claim 4 or 5, is characterized in that, described joint connecting structure is fastener matching structure or over-surplus fit structure.

7. retractor as claimed in claim 1, it is characterized in that, described B alloy wire is nitinol alloy wire.

8. retractor as claimed in claim 1, is characterized in that, described retractor also comprises for the end cap closing described pressed on ring, be removably connected with pressed on ring.