Drag hook for anus operation
Technical Field
The utility model relates to a medical surgical tool, in particular to a drag hook for anus surgery.
Background
The anus drag hook plays an important role in exposing operative fields during the operation of the rectum and anal canal, has wide application range and high use frequency, is often used for the operation treatment of diseases such as adult rectum and anal canal tumor, trauma and child congenital megacolon, anus occlusion, rectourethral fistula, rectovaginal fistula and the like, and has small operation space of the rectum and anal canal operation due to the anatomical structure factors such as small rectum and anal canal space, deep position and the like, especially for children, the operation exposure is extremely difficult, if the operation exposure cannot be sufficient and stable, the operation difficulty is greatly increased, and the complications such as bleeding, urethral injury, vaginal injury, intestinal anastomotic fistula and the like are easy to occur in the operation.
The current draw hook commonly used in the transanal operation is mainly a simple nail hook, but the adoption of the nail hook to draw and expose the anus has a plurality of defects: 1. the operation space is reduced: when the nail hook is pulled and exposed, the nail hook needs to be placed in an anal tube to pull the anus, and the operation space is greatly reduced because the draw hook occupies a certain operation space; 2. the stability is not sufficient: because the anus is continuously and forcefully exposed by the assistant in the operation, the position may shift along with the prolonging of the operation time, and because the operation space is limited, the minor shift and the exposure failure may be caused, the readjustment is needed, and the operation time is consumed; 3. uneven traction force: because of adopting the manual work to exert pulling force to the drag hook, traction force is inhomogeneous, leads to dissecting the aversion easily, increases the vice injury risk of peripheral organ, and when 4, anus pathological change department was darker, it can't see the pathological change clearly to have better lighting device.
Therefore, the development of a new retractor for anus operation not only has urgent research value, but also has good economic benefit and industrial application potential, which is the basis and the place where the utility model can complete.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art pointed out above, the utility model discloses the people has carried out the deep research to this, after having paid out a large amount of creative work, thereby accomplished the utility model discloses.
Particularly, the utility model discloses the technical problem that solve is: provides a retractor for anus operation, which solves the technical problem existing in the prior retractor for operation.
In order to achieve the above object, the utility model provides a following technical scheme:
a drag hook for anus operation comprises a basic frame and a drag hook matched with the basic frame, wherein the basic frame comprises a fixed frame and a drag rod arranged on the fixed frame, the fixed frame is in a closed ring shape, a moving seat is arranged on the fixed frame, the pulling rod is inserted in the moving seat in a sliding manner, and is connected with a sliding speed reducer in the movable seat, the inner end of the pulling rod is connected with an expansion plate, the expansion plate extends in the direction vertical to the axis of the pulling rod, the outer end of the pulling rod is provided with a position fixing device, the position fixing device comprises a nut which is rotatably arranged on the outer side of the pulling rod through threads, the outer diameter of the nut is larger than the diameter of a through hole of the moving seat at the penetrating position of the pulling rod, the draw hook comprises an elastic handle at the rear part and a fixed hook at the front end, and the hook-shaped end part at the front part of the fixed hook is made of non-deformable materials.
The utility model discloses in, as an improvement, it includes pedestal and lower pedestal to remove the seat go up the pedestal and be connected through being connected the periphery down between the pedestal, the peripheral slidable mounting of linkage rod through connection, be equipped with the gear of rotating the installation through the pivot in the connection periphery, the gear sets up the double-phase offside at the linkage rod relatively, the outside of linkage rod is equipped with the external tooth with gear engaged with.
The utility model discloses in, as an improvement, the last illumination apparatus that sets up of fixed frame, the illumination apparatus is including installing the base on fixed frame and installing the telescopic link on the base, the light is installed on the top of telescopic link.
The utility model discloses in, as an improvement, the base is articulated to be constituteed together by two clamping pieces, forms the tubulose inner chamber behind two clamping piece centre grippings, and two clamping pieces pass through centre gripping inner chamber centre gripping on fixed frame.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) set up on fixed frame and remove the seat, the pulling rod interactive installation is in removing the seat, and the pulling rod links to each other with the gear reduction unit who sets up in removing the seat, avoids causing patient's misery because the pulling is too fast, and reducing gear increases the effort when the pulling rod pulling, because the location of the pulling rod of being not convenient for is pulled because artifical pulling and pulling are too fast, and easy the pulling is crossed or can't arrive, under reducing gear's drive, is convenient for pull the location of pole.
(2) Set up lighting apparatus on basic frame, the light passes through the ripple telescopic link to be installed on basic frame, can change illumination direction and angle wantonly, is convenient for the search of the surface of a wound and going on of operation.
(3) The lighting device is arranged on the basic frame through the clamping base, so that the whole lighting tool can be detached without influencing the basic use.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a partial sectional view of the present invention;
FIG. 3 is a schematic structural view of the retractor of the present invention;
fig. 4 is a schematic structural view of the base of the present invention;
FIG. 5 is a schematic structural view of the movable seat of the present invention;
in the figure: 1. fixed frame, 2, pulling rod, 3, elastic handle, 4, fixed hook, 5, upper seat body, 6, lower seat body, 7, periphery, 8, gear, 9, base, 10, telescopic link, 11, light, 12, expansion plate, 13, nut, 14, connecting rod section.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
As shown in fig. 1 to 5, the retractor for anus operation comprises a base frame and a retractor used with the base frame, wherein the retractor and the base frame are not connected together, but are used with a matched surgical instrument, the base frame pulls open the anus, and the anus is stretched into and pulled out of a diseased region through the retractor to perform the operation.
The base frame comprises a fixed frame 1 and a pulling rod 2 arranged on the fixed frame 1, the fixed frame 1 is in a closed ring shape, the shape of the ring can be set according to requirements, such as a ring, a square ring or various irregular ring shapes, the fixed frame 1 is used for being arranged around the outer side of the anus part of a patient, therefore, the inner ring of the fixed frame 1 is larger than the anus part, a moving seat is arranged on the fixed frame 1, the lower end of the moving seat is welded on the fixed frame 1, so that the moving seat and the fixed frame 1 are connected into a whole, the pulling rod is inserted in the moving seat in a sliding manner, the pulling rod 2 is a horizontal cross rod which is horizontally arranged, the pulling rod is inserted in the moving seat and movably arranged, the inner end of the pulling rod 2 is connected with an expansion plate 12 for expanding the anus part, the expansion plate 12 extends downwards perpendicular to the axis direction of the pulling rod 2, and the expansion plate 12 extends into the anus, and outwards pulling the outer end of the pulling rod 2 to expand the anus, the outer end of the pulling rod 2 is provided with a position fixing device, the position fixing device comprises a nut 13 which is rotatably arranged on the outer side of the pulling rod 2 through threads, the nut 13 is provided with internal threads, the outer end part of the pulling rod 2 is provided with external threads, the nut 13 is rotatably arranged on the outer side of the pulling rod 12 through threads, the outer diameter of the nut 13 is larger than the diameter of a moving seat through hole at the penetrating part of the pulling rod 2, after the pulling rod 2 is pulled in place, the nut 13 is rotated to enable the nut 13 to move towards the inner end of the pulling rod 12 until the pulling rod abuts against the outer side of the moving seat, and the position of.
The drag hook comprises an elastic handle 3 at the rear part and a fixed hook 4 at the front end, the hook-shaped end part at the front part of the fixed hook 4 is made of an undeformed material, an inelastic connecting rod section 14 is connected between the elastic handle 3 and the fixed hook 4, the fixed hook 4 is convenient to limit, and the elastic handle 3 can enable the drag hook to be convenient to hold and change the pulling direction easily to meet the requirements of different pathological changes.
The movable seat comprises an upper seat body 5 and a lower seat body 6, the upper seat body 5 is connected with the lower seat body 6 through a connecting periphery 7, the upper seat body 5, the lower seat body 6 and the periphery 7 form a hollow sealing shell seat body, the pulling rod 2 is connected with the periphery 7 in a sliding mode, the two opposite sides of the periphery 7 are connected with through holes, the inner end and the outer end of the pulling rod 2 penetrate through the two through holes to extend to the outer side of the movable seat 5, a gear 8 which is rotatably installed through a rotating shaft is arranged in the connecting periphery 7, the gear 8 is oppositely arranged on the two opposite sides of the pulling rod 2, external teeth meshed with the gear 8 are arranged on the outer side of the pulling rod 2, the external teeth are also arranged on the two opposite sides of the pulling rod 2, and are meshed with the gear 8, so that the resistance of the pulling rod 2 is increased in the pulling process.
Set up the illumination apparatus on fixed frame 1, the illumination apparatus is including installing base 9 on fixed frame 1 and installing telescopic link 10 on base 9, telescopic link 10 outside suit PVC ripple is flexible, telescopic link 10 adopts the corrugated metal pipe that adopts on the desk lamp among the prior art, can change illumination angle and direction of illumination etc. when flexible, light 11 is installed on the top of telescopic link 10, light 11 links to each other with external power supply equipment through interconnecting link, supplies power to light 11 through this power supply equipment.
The base 9 is articulated to be constituteed together by two clamping pieces, two clamping pieces are crooked form, and the double-layered chamber between two clamping pieces is the pipe form cavity, forms the tubulose inner chamber after two clamping piece centre gripping, and two clamping pieces pass through centre gripping inner chamber centre gripping on fixed frame 1, and two clamping pieces open to the centre gripping is to fixed frame 1 on, makes the illumination utensil install in basic frame, the illumination of being convenient for.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.