CN211796645U - Periosteum stripper - Google Patents

Abstract

The utility model discloses an periosteum stripper, including the handle piece of rectangular shape, handle piece one end bending becomes first circular arc section, and the handle piece other end is reverse bending forms the second circular arc section for first circular arc section bending direction, the end of first circular arc section and second circular arc section all forms the blade, first circular arc section and second circular arc section are the circular arc section that the central angle is 180 degrees, and the initial endpoint tangent line of first circular arc section and second circular arc section is mutually perpendicular with the vertical well separated time of handle piece; the diameter corresponding to the first arc section is not equal to the diameter corresponding to the second arc section; the annular periosteum stripping device is suitable for periosteum stripping in the traditional open fracture operation and minimally invasive fracture operation, facilitates minimally invasive incision in the operation, reduces soft tissue stripping injury around fracture broken ends, facilitates later-stage further operation, reduces postoperative influence, and is convenient to use.

Description

a periosteal stripper

technical field

The utility model relates to a medical surgical instrument, in particular to a periosteum stripper.

Background technique

Periosteum peeler is mainly used for peeling periosteum and surrounding muscles and other tissues in medical orthopaedic surgery. It is generally formed by a long handle piece slightly bent at one end, and a cutting edge is formed at the end of the curved segment, which is convenient for the periosteum peeler. Insert and separate the periosteum and surrounding muscles, etc.; in actual operation, the periosteal stripper with this structure has a limited range of periosteal stripping along the circumference of the long canal bone, and cannot achieve circular stripping. develop.

Utility model content

In view of this, the purpose of this utility model is to overcome the defects in the prior art, and provide a periosteal stripper, which is suitable for annular periosteal stripping in minimally invasive orthopedic surgery, facilitates minimally invasive incisions during the operation, and reduces the stripping of soft tissue around the fracture end. Injury, convenient for further operations in the later stage, reduce postoperative impact, and easy to use.

A periosteal stripper of the utility model comprises a long handle piece, one end of the handle piece is bent to form a first arc segment, and the other end of the handle piece is bent in the opposite direction relative to the bending direction of the first arc segment to form a second arc segment. A circular arc segment, the ends of the first circular arc segment and the second circular arc segment both form cutting edges, and the first circular arc segment and the second circular arc segment are arcs with a central angle of 150°-180° and the tangents of the starting end points of the first arc segment and the second arc segment are perpendicular to the longitudinal midline of the handle piece; the diameter corresponding to the first arc segment is not equal to the diameter corresponding to the second arc segment.

Further, the middle of the handle piece also includes a middle section, the middle section is composed of a torsion section and a curved section, the torsion section is twisted by 90° around the longitudinal center line of the handle piece, and the bending angle of the curved section is 70° to 90°.

Further, the first circular arc segment and the second circular arc segment are both circular arc segments with a central angle of 175°.

Further, the diameter corresponding to the first arc segment is 3 cm, and the diameter corresponding to the second arc segment is 5 cm.

Further, the diameter corresponding to the first arc segment is 5 cm, and the diameter corresponding to the second arc segment is 7 cm.

Further, the side surface of the middle section of the handle sheet is recessed to form a first finger positioning groove close to the first circular arc segment and a second finger positioning groove close to the second circular arc segment, the first finger positioning groove and the first finger positioning groove. A circular arc segment is located on the same side of the handle piece, and the first finger positioning groove and the first circular arc segment are located on the same side of the handle piece.

Further, the widths of the second circular arc segment and the first circular arc segment are narrow in the middle and wide at both ends.

Further, the width of the middle section of the handle piece first gradually increases and then gradually decreases along the direction from the second circular arc section to the first circular arc section, and then gradually increases and then gradually decreases.

The beneficial effects of the present utility model are as follows: in the periosteum stripper disclosed by the present utility model, by setting the tangent lines of the starting end points of the first circular arc segment and the second circular arc segment to be perpendicular to the longitudinal center line of the handle piece, Moreover, the first arc segment and the second arc segment are arc segments with a central angle of 180°, which is beneficial to realize the annular peeling of the periosteum of the long canal bone with a relatively small surgical incision, and is suitable for minimally invasive orthopedics. Surgical annular periosteal stripping reduces the damage of soft tissue stripping around the fractured end, facilitates further operations in the later stage, and reduces postoperative impact, and the two ends of the stripper are provided with curved sections of different sizes, which is beneficial for one stripper to be suitable for different diameters. Long tube bone stripping .

Description of drawings

Below in conjunction with accompanying drawing and embodiment, the utility model is further described:

Fig. 1 is the structural representation of the utility model;

Fig. 2 is another structural representation of the utility model;

FIG. 3 is a schematic diagram of the structure of the middle section in the utility model.

Detailed ways

As shown in the figure, a periosteal stripper in this embodiment, FIG. 2 is another structural schematic diagram of the utility model, and FIG. 3 is a schematic structural diagram of the middle section in the utility model, including a long handle piece, so One end of the handle sheet is bent to form a first circular arc segment 1, and the other end of the handle sheet is bent in the opposite direction relative to the bending direction of the first circular arc segment 1 to form a second circular arc segment 2. The first circular arc segment 1 and the second circular arc segment 2 are formed. The ends of the arc segments 2 are formed with cutting edges, the first arc segment 1 and the second arc segment 2 are arc segments with a central angle of 150°-180°, and the first arc segment 1 and the second arc segment 2 are arc segments with a central angle of 150°-180°. The tangent line of the starting end point of the arc segment 2 is perpendicular to the longitudinal center line of the handle piece; the diameter corresponding to the first arc segment 1 is not equal to the diameter corresponding to the second arc segment 2; The tangent line of the starting end point of the second arc segment 2 is set to be perpendicular to the longitudinal midline of the handle piece, and the first arc segment 1 and the second arc segment 2 are both circles with a central angle of 150°-180° The arc segment is beneficial to realize the annular peeling of the periosteum of the long canal bone in the case of a relatively small surgical incision. It is suitable for the annular periosteal peeling of the minimally invasive orthopaedic surgery, reducing the postoperative impact, and the two ends of the peeler are provided with curved segments of different sizes. , which is beneficial for one stripper to be suitable for stripping long tubular bones of different diameters; and the first arc segment and the first arc segment are relatively fixed to form a lever, which is convenient for force generation; the longitudinal direction represents the length direction of the stripper.

In this embodiment, the middle of the handle piece further includes a middle section, the middle section is composed of a torsion section 4 and a curved section 5, the torsion section 4 is twisted 90° around the longitudinal center line of the handle piece, and the curved section The bending angle is 70° to 90°; the bending angle of the bending section is preferably 80°, as shown in the figure, by setting the middle section of the structure, it is beneficial to avoid the interference between the rear end of the stripper and the operating table during operation, and the stripping The effective length of the device is shortened, which improves the convenience of operation.

In this embodiment, the first circular arc segment 1 and the second circular arc segment 2 are both circular arc segments with a central angle of 175°; under the condition of this central angle, it is beneficial to ensure that the opening of the curved segment is larger and facilitates insertion At the same time, during the annular peeling operation, the maximum opening angle of the surgical incision is relatively small; the handle piece (including the middle section) is integrally formed, and is processed by twisting and bending, which is convenient to manufacture.

In this embodiment, the diameter corresponding to the first arc segment 1 is 3 cm, and the diameter corresponding to the second arc segment 2 is 5 cm; the diameter corresponding to the first arc segment 1 is 5 cm, and the diameter corresponding to the second arc segment 1 is 5 cm. 2 The corresponding diameter is 7cm; setting two groups of different sizes is beneficial to a relatively wide range of practical use.

In this embodiment, the side surface of the middle section of the handle piece is recessed to form a first finger positioning groove 3 close to the first circular arc segment 1 and a second finger positioning groove close to the second circular arc segment 2. The first finger positioning groove The finger positioning groove 3 and the first arc segment 1 are both located on the same side of the handle sheet, and the first finger positioning groove and the first arc segment 1 are both located on the same side of the handle sheet; as shown in the figure, the first finger positioning groove Both the positioning grooves of the second finger and the second finger are approximately oval, and the thumb pressed into the thumb during operation is positioned by the positioning grooves, which is convenient for holding the periosteal stripper and improves the operation stability.

The widths of the second arc segment 2 and the first arc segment 1 are narrow in the middle and wide at both ends; the width of the middle segment of the handle piece gradually increases along the direction from the second arc segment 2 to the first arc segment 1. Large and gradually reduced, and then gradually increased and gradually reduced; through this shape setting, it is convenient to use, and at the same time saves raw materials and reduces manufacturing costs.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should The technical solutions are modified or equivalently replaced without departing from the purpose and scope of the technical solutions of the present invention, and all of them should be included in the scope of the claims of the present invention.

Claims (8)

1. a periosteal stripper, it is characterized in that: comprise a long handle sheet, one end of the handle sheet is bent to form a first arc segment, and the other end of the handle sheet is reversely bent relative to the bending direction of the first arc segment to form The second circular arc segment, the ends of the first circular arc segment and the second circular arc segment both form cutting edges, and the first circular arc segment and the second circular arc segment are both with a central angle of 150°-180° arc segment, and the tangent line of the starting end point of the first arc segment and the second arc segment is perpendicular to the longitudinal midline of the handle piece; the diameter corresponding to the first arc segment is not equal to the diameter corresponding to the second arc segment . 2 . The periosteal stripper according to claim 1 , wherein the middle of the handle piece further comprises a middle section, the middle section is composed of a torsion section and a curved section, and the torsion section surrounds the longitudinal direction of the handle piece. 3 . The median line is twisted by 90°, and the bending angle of the bending section is 70° to 90°. 3 . The periosteal stripper according to claim 1 , wherein the first arc segment and the second arc segment are arc segments with a central angle of 175°. 4 . 4 . The periosteal stripper according to claim 1 , wherein the diameter corresponding to the first arc segment is 3 cm, and the diameter corresponding to the second arc segment is 5 cm. 5 . 5 . The periosteal stripper according to claim 1 , wherein the diameter corresponding to the first arc segment is 5 cm, and the diameter corresponding to the second arc segment is 7 cm. 6 . 6 . The periosteal stripper according to claim 5 , wherein the side surface of the middle section of the handle piece is recessed to form a first finger positioning groove close to the first circular arc section and a first finger positioning groove close to the second circular arc section. 7 . The second finger positioning slot, the first finger positioning slot and the first arc segment are located on the same side of the handle piece, and the first finger positioning slot and the first arc segment are both located on the same side of the handle piece. 7 . The periosteal stripper according to claim 6 , wherein the widths of the second arc segment and the first arc segment are narrow in the middle and wide at both ends. 8 . 8 . The periosteal stripper according to claim 7 , wherein the width of the middle section of the handle piece increases first and then gradually decreases along the direction from the second arc section to the first arc section, and then gradually decreases. 9 . Then gradually increase and then gradually decrease.

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