CN212816391U

CN212816391U - Skin tractor

Info

Publication number: CN212816391U
Application number: CN202020816610.XU
Authority: CN
Inventors: 刘广辉; 宋春丽; 文海杰
Original assignee: Anyang Second People's Hospital Anyang Rehabilitation Education Center For Disabled
Current assignee: Anyang Second People's Hospital Anyang Rehabilitation Education Center For Disabled
Priority date: 2020-05-17
Filing date: 2020-05-17
Publication date: 2021-03-30
Anticipated expiration: 2030-05-17

Abstract

The utility model provides a skin tractor, skin tractor includes columniform barrel and independent spanner, and long screw has been seted up along the axis to the barrel, and the spout has been seted up along barrel major axis direction to the barrel lateral wall, is provided with the slider in the spout, set up kirschner wire hole and fixed screw on the slider, be provided with fixing bolt in the fixed screw, fixing bolt and fixed screw spiro union are provided with first slider and second slider in the spout, are provided with pressure spring between the diapire of second slider and barrel, wear to be equipped with in the long screw and pull the screw, pull the screw top be provided with the bayonet socket of spanner adaptation, pull the screw can whole screw in the long screw under the spanner effect, pull the tip and the first slider butt that the screw is located the barrel inside. The utility model provides a skin tractor adopts the integral type tube-shape design, and its whole is small, and is few to patient's postoperative activity restriction, easy operation, but accurate control tractive dynamics.

Description

Skin tractor

Technical Field

The utility model relates to a skin tractor belongs to medical instrument technical field.

Background

In the clinical practice of surgery, patients with large-area skin damage caused by bedsore due to trauma or long-term bed rest are often encountered, a general treatment mode is to use a balloon type skin expander to perform local skin flap transfer repair after skin stretching, the treatment time of the treatment mode is long, the generated skin transfer area is small, deep tissues are easily pressed in the implantation process, patients have strong discomfort, and the defects of infection at the implantation position and the like easily occur. The skin tractor which appears in recent years solves the defects that the skin tractor applies continuous pulling force towards the wound direction on the skin at two sides of a large-area wound, the edges of the wound are slowly drawn together under the action of the pulling force, the edges of the wound at two sides are drawn together and combined within a period of several days to several weeks, and the wound is healed under the action of new skin tissues, so the defect that the new skin of a balloon type skin expander is used for transplantation is overcome, but the skin tractor commonly used at present utilizes an adjustable screw rod which is in threaded connection with a tractor main body and extends out of the tractor, a tractor foot and a nut are arranged on the screw rod for operation, the tractor screw rod is very long, the volume of the tractor foot and the nut is large, the overall shape of the skin tractor is irregular, and accidental injuries and even falling off are often caused by the position change of a patient under the action of the skin tractor or the action, the postoperative patient can not lie flat or turn over, so that the range of motion of the patient is limited; in order to avoid uneven tension on the skin when the skin retractor is used, the traction foot must be inserted into the skin at the edge of a wound perpendicular to the screw rod, and the skin retractor is difficult to operate for irregular wounds; and human skin generally can bear the pulling force about 1kg, surpass this pulling force skin and can take place breakage or necrosis phenomenon, traditional screw rod nut formula skin tractor operation relies on medical personnel's experience adjustment pulling force value entirely, because of adopt the nut to adjust the pulling force, the moment of torsion of nut is little, the adjustment is difficult, often need adjust with the help of the instrument, different operating personnel can make the pulling force value of treatment in-process change because of the operation experience difference, make treatment result controllability poor, can make wound edge skin take place accidents such as breakage necrosis because of operating personnel's error even.

Disclosure of Invention

The utility model aims to provide a: the skin tractor adopts an integrated cylindrical design with two smooth ends, has small integral volume, few restrictions on postoperative activities of patients, is simple to operate, and can accurately control the traction force.

In order to achieve the above purpose, the utility model adopts the technical scheme that: a skin tractor comprises a cylindrical barrel and an independent wrench, wherein two ends of the barrel are hemispheroids, the barrel is provided with a long screw hole along a central axis, the side wall of the barrel is provided with a sliding groove along the long axis direction of the barrel, the bottom of the sliding groove is communicated with the long screw hole, a Kirschner wire fixing block is arranged in the sliding groove and comprises a sliding block, a connecting neck and a clamping block, the outer surface of the sliding block comprises a quarter spherical surface, a bottom surface and a flat side surface, the bottom surface and the flat side surface of the sliding block are planes, the bottom surface of the sliding block is connected with the clamping block arranged in the screw hole through the connecting neck, the sliding block is provided with the Kirschner wire hole and a fixed screw hole, the Kirschner wire hole is arranged towards the barrel and is perpendicular to the axis direction of the barrel, the opening of the Kirschner wire, a fixing bolt is arranged in the fixing screw hole and is in threaded connection with the fixing screw hole; a first Kirschner wire fixing block and a second Kirschner wire fixing block are arranged in the sliding groove, the first Kirschner wire fixing block comprises a first sliding block, a first connecting neck and a first clamping block, the second Kirschner wire fixing block comprises a second sliding block, a second connecting neck and a second clamping block, the flat side surfaces of the first sliding block and the second sliding block are oppositely arranged, a pressure spring is arranged between the second clamping block and the bottom wall of the barrel, a traction screw rod penetrates through the long screw hole, the traction screw rod is a cap-free screw rod, the traction screw rod is connected with the long screw hole through threads, a bayonet matched with a wrench is arranged at the top end of the traction screw rod, the traction screw rod can be integrally screwed into the long screw hole under the action of the wrench, and the end part of the traction screw; furthermore, a kirschner wire groove is formed in the side face, located on the same side of the flat side face of the sliding block, of the connecting neck and the clamping block, and is connected with a kirschner wire hole in the sliding block; furthermore, a scale indication is arranged at the position, corresponding to the pressure spring, on the cylinder body; furthermore, the spanner is an inner hexagonal spanner, and a hexagonal bayonet matched with the inner hexagonal spanner is formed in the screw rod.

The utility model discloses an actively beneficial technological effect lies in: the utility model provides a skin tractor, adopted both ends slick and sly tractor barrel and built-in screw rod design, and set up the fixture block in the tractor barrel, the slider has adopted globular design, make the whole shape rule of skin tractor, small, the activity and the nursing work of the postoperative patient of being convenient for go on, add in the tractor barrel and set up the spring, and set up the scale outside the barrel, can draw the dynamics of tractive directly perceivedly, adjust the tractive force according to the treatment requirement, the adjustment dynamics is accurate controllable, prevent that the too big skin defect that causes of tractive dynamics; the Kirschner wire hole vertical to the axis direction of the cylinder body can ensure that the direction and the traction angle of the traction needle inserted into the skin are accurate and effective, and a good treatment effect is obtained; and the part of the Kirschner wire hole only positioned on the sliding block is a closed hole, the Kirschner wire groove is arranged on the side face on the same side as the flat side face of the sliding block, the stress of the Kirschner wire is born by the clamping block and the connecting neck during traction, the Kirschner wire groove plays a role in limiting the Kirschner wire, the open Kirschner wire groove is arranged to reduce the length of the closed section Kirschner wire hole, so that the tractor can be easily cleaned and sterilized, and the infection risk is reduced.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a slider according to an embodiment of the present invention.

Fig. 3 is a schematic structural view of the combination of the cylindrical barrel and the screw according to an embodiment of the present invention.

Fig. 4 is a schematic structural view of a screw according to an embodiment of the present invention.

Detailed Description

In order to explain the utility model more fully, the following embodiment examples of the present invention are provided, which are only for the explanation of the present invention and do not limit the scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

The invention is explained in further detail with reference to the drawings, in which: 1. a barrel; 2. an inner hexagon spanner; 3. a second kirschner wire fixing block; 4. a first kirschner wire fixing block; 5. scale indication; 6. a chute; 7. a traction screw; 8. fixing the bolt; 9. a pressure spring; 10. a long screw hole; 11. a Kirschner wire hole; 12. a quarter sphere; 13. a flat side surface; 14. a connecting neck; 15. a clamping block; 16. a Kirschner wire slot; 17. and a hexagonal bayonet.

As shown in the figure: a skin tractor comprises a cylindrical barrel 1 and an independent inner hexagonal wrench 2, wherein two ends of the barrel are hemispheroids, the barrel is provided with a long screw hole 10 along a central axis, the side wall of the barrel is provided with a sliding groove 6 along the long axis direction of the barrel, the bottom of the sliding groove is communicated with the long screw hole, a Kirschner wire fixing block is arranged in the sliding groove, the Kirschner wire fixing block comprises a sliding block, a connecting neck 14 and a clamping block 15, the outer surface of the sliding block comprises a quarter spherical surface 12, a bottom surface and a flat side surface 13, the bottom surface is positioned at the bottom of the sliding block and is not shown in the figure, the bottom surface of the sliding block is connected with the clamping block 15 arranged in the screw hole through the connecting neck, the Kirschner wire hole 11 and a fixing screw hole are arranged on the sliding block, the Kirschner wire hole is arranged towards the barrel and is vertical to the, the Kirschner wire groove is positioned on the opposite side surfaces of the connecting neck and the clamping block, and the Kirschner wire groove is connected with the Kirschner wire hole on the sliding block; the fixing screw hole is arranged along the horizontal direction, the fixing screw hole is communicated with the Kirschner wire hole in the sliding block, a fixing bolt 8 is arranged in the fixing screw hole, the fixing bolt is in threaded connection with the fixing screw hole, and the fixing bolt plays a role in fixing the position of the Kirschner wire in the Kirschner wire hole; be provided with first kirschner wire fixed block 4 and second kirschner wire fixed block 3 in the spout, first kirschner wire fixed block includes first slider, first connecting neck and first fixture block, the second kirschner wire fixed block includes the second slider, second connecting neck and second fixture block, the flat side of first slider and second slider sets up relatively, be provided with pressure spring 9 between the diapire of second fixture block and barrel, be provided with scale indication 5 with pressure spring corresponding position on the barrel, wear to be equipped with in the long screw and pull screw 7, it is the cap-free screw to pull the screw, pull and offer on the screw with interior hexagonal spanner matched with hexagon bayonet 17, pull through threaded connection between screw and the long screw, pull the screw and can wholly screw in the long screw under the spanner effect, pull the tip that the screw is located barrel inside and first fixture block butt.

The utility model discloses when using, bury the skin edge in the wound both sides with the ke shi needle respectively underground, get after the ke shi needle passes the ke shi needle hole on first and the second slider and bury the ke shi needle in the skin underground and be connected respectively, utilize the spanner to rotate traction screw and promote first slider taut with skin, the second slider receives the skin pulling force to the bottom motion of barrel this moment, and pressure spring atress compression can read out the pulling force that skin received this moment on the scale of pressure spring border position.

After the embodiments of the present invention have been described in detail, those skilled in the art can clearly understand that various changes and modifications can be made without departing from the scope and spirit of the above claims, and any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention all fall within the scope of the technical solution of the present invention, and the present invention is not limited to the embodiments of the examples given in the specification.

Claims

1. A skin retractor, comprising: the skin tractor comprises a cylindrical barrel and an independent wrench, wherein two ends of the barrel are hemispheroids, the barrel is provided with a long screw hole along a central axis, the side wall of the barrel is provided with a sliding groove along the long axis direction of the barrel, the bottom of the sliding groove is communicated with the long screw hole, a kirschner wire fixing block is arranged in the sliding groove and comprises a sliding block, a connecting neck and a clamping block, the outer surface of the sliding block comprises a quarter spherical surface, a bottom surface and a flat side surface, the bottom surface and the flat side surface of the sliding block are planes, the bottom surface of the sliding block is connected with the clamping block arranged in the screw hole through the connecting neck, the sliding block is provided with the kirschner wire hole and a fixing screw hole, the kirschner wire hole is arranged towards the barrel and is vertical to the axis direction of the barrel, the opening of the kirschner wire hole is positioned at the, the fixing bolt is in threaded connection with the fixing screw hole; be provided with first kirschner wire fixed block and second kirschner wire fixed block in the spout, first kirschner wire fixed block includes first slider, first connection neck and first fixture block, and the second kirschner wire fixed block includes second slider, second connection neck and second fixture block, and the flat side of first slider and second slider sets up relatively, is provided with pressure spring between the diapire of second fixture block and barrel, wears to be equipped with in the long screw and pulls the screw, pull the screw and be the cap-free screw, pull through threaded connection between screw and the long screw, pull the screw top be provided with the bayonet socket of spanner adaptation, pull the screw can whole screw in the long screw under the spanner effect, pull the tip that the screw is located the barrel inside and first fixture block butt.

2. The skin retractor of claim 1 wherein: the connecting neck and the clamping block are provided with a Kirschner wire groove on the side face on the same side as the flat side face of the sliding block, and the Kirschner wire groove is connected with a Kirschner wire hole on the sliding block.

3. The skin retractor of claim 1 wherein: and a scale indication is arranged at the position, corresponding to the pressure spring, on the cylinder body.

4. The skin retractor of claim 1 wherein: the spanner is an inner hexagonal spanner, and a hexagonal bayonet matched with the inner hexagonal spanner is arranged on the traction screw rod.