CN213640863U

CN213640863U - Tibiofibular space measuring rod

Info

Publication number: CN213640863U
Application number: CN202022662660.XU
Authority: CN
Inventors: 江东
Original assignee: Peking University Third Hospital Peking University Third Clinical Medical College
Current assignee: Peking University Third Hospital Peking University Third Clinical Medical College
Priority date: 2020-11-17
Filing date: 2020-11-17
Publication date: 2021-07-09
Anticipated expiration: 2030-11-17

Abstract

The utility model discloses a measuring rod for the lower tibiofibular space, which comprises a handle, a detecting rod and an end head; one end of the detection rod is connected with the handle, and the other end of the detection rod is connected with the end part of the end head; and the detection rod and the end head are respectively provided with a detection rod scale mark and an end head scale mark. The axis of the end head and the axis of the detection rod form a certain included angle; the end head is in a shape of a circular truncated cone, and the gap between the scale lines of the detection rod is 2 mm. The utility model discloses a measuring stick includes gauge stick and end, through the quantization size of end round platform shape, when measuring shin calf clearance, puts into the end with different angles, the quantitative size and the end scale mark and the gauge stick scale mark of end itself gradual change, realizes the survey of shin calf clearance width and clearance broadening scope down, provides accurate reference for clinical decision; the end and the detecting rod form a certain included angle, so that the operation is convenient, and the compliance of the detecting rod is enhanced. The measuring rod can measure the data of the tibiofibular space accurately, and the operation time and operation are reduced.

Description

Tibiofibular space measuring rod

Technical Field

The utility model belongs to the field of medical equipment, specifically be a tibiofibular clearance measuring rod down.

Background

The combined injury of the lower tibiofibula is a common injury of the ankle joint, which can occur when the ankle joint is sprained or fractured. Although the increase in the tibiofibular space is suggested by preoperative X-ray, CT, and nuclear magnetic resonance, since these examinations are performed under static non-load conditions, many of the increased spaces are not opened, and the actual increase in the tibiofibular space cannot be reflected. The space between the lower tibiofibula can be observed directly under the arthroscope, and the space can be spread and measured in the operation, so that the severity of the combined injury of the lower tibiofibula can be evaluated visually and accurately, and a reasonable treatment scheme can be guided and selected. The method for measuring the tibiofibular space under the arthroscope used at present has two methods, one method is to adopt a metal probe hook, which is a common surgical instrument in arthroscope surgery, and the metal probe hook is a cylindrical probe rod with the cross section diameter of 2mm, and the degree of widening can be roughly judged by placing the cylindrical probe rod into the widened tibiofibular space, but the metal probe hook cannot be quantized. Another method is to make metal rods with different diameters, and sequentially put the space between the lower tibiofibula from thin to thick in the operation to try the width until the diameter of the previous metal rod is used as the width of the lower tibiofibula when the metal rod can not be put in the space. This method has many drawbacks: 1. a plurality of measuring rods are required to be manufactured, which is not beneficial to simplifying surgical instruments; 2. the measuring rod needs to be placed for many times, so that the operation difficulty and operation time are increased, the operation wound is increased, and the postoperative rehabilitation is not facilitated; 3, the widths of different positions in the lower tibiofibular space cannot be measured simultaneously, if the measurement is finished, the number of times of entering the measurement rod needs to be increased doubly, the operation is complicated, and the operation time and difficulty are increased; 4. the widening range of the tibiofibular space cannot be measured simultaneously, and accurate reference is provided for clinical decision.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model provides a tibiofibular clearance measuring rod, which comprises a detecting rod and an end head, wherein the gradually changed quantitative size of the end head, an end head scale mark and a detecting rod scale mark realize the measurement of tibiofibular clearance width and clearance widening range, and provide accurate reference for clinical decision; the end and the detecting rod form a certain included angle, so that the operation is convenient, and the compliance of the detecting rod is enhanced. The measuring rod can measure the lower tibiofibular space accurately, reduce the number of surgical instruments, reduce the cost, reduce the operation time and operation, improve the operation effect and facilitate the postoperative rehabilitation.

The technical scheme of the utility model is that:

a tibiofibular space measuring rod is characterized by comprising a handle, a detecting rod and a tip; one end of the detection rod is connected with the handle, and the other end of the detection rod is connected with the end part of the end head; and the detection rod and the end head are respectively provided with a detection rod scale mark and an end head scale mark.

The included angle between the axis of the end head and the axis of the detection rod is 135 degrees.

The end head is a circular truncated cone, the diameter of the bottom surface of the circular truncated cone, which is connected with the detection rod, is 4mm, and the diameter of the bottom surface of the circular truncated cone, which is deviated from the detection rod, is 2 mm; the height of the circular truncated cone is 4 mm; the end scale lines surround the circumferential middle of the side surface of the circular truncated cone.

The detection rod scale lines are arranged along the circumferential direction of the detection rod, and the gap between the detection rod scale lines is 2 mm.

The distance between the bottom surface of the end head departing from the detection rod and the outer side of the bending part of the detection rod is 5 mm.

The diameter of the cross section between one end of the detection rod connected with the end head and one end of the detection rod connected with the handle is uniformly increased; the diameter of the cross section of one end of the detection rod, which is connected with the end head, is 2mm, and the diameter of the cross section of one end of the detection rod, which is connected with the handle, is 3 mm.

The length of the probe rod is 100 mm-150 mm.

The technical effects of the utility model are that:

the end of the measuring rod of the utility model is designed as a round platform, the diameter of the bottom surface connected with the detecting rod is large, the diameter of the other bottom surface is small, the scale line of the end is positioned in the center, the diameter of the position is also clear, the design of the end can dynamically evaluate the widening degree after being inserted, and the widening distance of the lower tibiofibular space can be more accurately judged; the diameter of the cross section between one end of the detection rod connected with the end head and one end of the detection rod connected with the handle is uniformly increased, the interval of the scale lines of the detection rod is 2mm, and the range of the widening of the interval of the lower tibiofibula can be measured, so that reference is provided for clinically selecting an accurate operation scheme. The end head and the detection rod form a certain included angle, so that the compliance of the measurement rod is improved, and the measurement rod is convenient to operate and put under an arthroscope.

The measuring rod accurately quantifies the width of the lower tibiofibular space, so that the inaccuracy of the traditional metal detection hook measurement is avoided; the device is suitable for measuring the gaps of different lower tibiofibulas, reduces the number of surgical instruments, reduces the cost, avoids repeatedly entering joint cavities of patients by metal rods with different diameters, reduces the operation time and operation, is favorable for improving the operation effect and is favorable for postoperative rehabilitation.

Drawings

Fig. 1 is a schematic view of the overall structure of the embodiment of the present invention.

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

In the figures, a handle 1; a probe rod 2; a tip 3; 2.1 of a detection rod scale mark; end graduation 3.1.

Detailed Description

The present invention will be further described with reference to the following examples.

As shown in fig. 1-2, a tibiofibular space measuring rod comprises a handle 1, a detecting rod 2 and a head 3; one end of the detection rod 2 is connected with the handle 1, and the other end is connected with the end part of the end head 3; the detection rod 2 and the end head 3 are respectively marked with a detection rod scale mark 2.1 and an end head scale mark 3.1. The included angle between the axial line of the end head 3 and the axial line of the detection rod 2 is 135 degrees. The end head 3 is a circular truncated cone, the diameter of the bottom surface connected with the detection rod 2 is 4mm, and the diameter of the bottom surface departing from the detection rod 2 is 2 mm; the end head is 3mm high; the end scale mark 3.1 surrounds the circumferential middle of the side surface. The detection rod scale lines 2.1 are arranged along the circumferential direction of the detection rod 2, and the gap between the detection rod scale lines 2.1 is 2 mm. The distance between the bottom surface of the end head departing from the detection rod and the outer side of the bending part of the detection rod is 5 mm. The diameter of the cross section between one end of the detection rod 2 connected with the end head 3 and one end connected with the handle 1 is uniformly increased; the diameter of the cross section of one end of the detection rod 2 connected with the end head 3 is 2mm, and the diameter of the cross section of one end of the detection rod connected with the handle 2 is 3 mm. The length of the probe rod 2 is 100 mm to 150 mm. The top of the end head 3 is provided with a groove, so that the detection rod 2 can be conveniently welded with the end head 3 through the groove.

The utility model discloses the principle does with the application:

the utility model discloses a use method of measuring stick: the tibiofibular space is first exposed under the arthroscope and the tip of the measuring rod is inserted into the tibiofibular space where it is desired to measure. The width of the normal tibiofibular space is less than or equal to 2mm, if one end of the end head deviating from the detecting rod can not be inserted, the tibiofibular space is normal; if the insertion can be carried out, the width of the tibiofibular space is recorded according to the scale reached after the insertion, if the scale line of the end head is reached, the diameter of the corresponding position is 3mm, if the diameter exceeds 4mm, the insertion can still be carried out, namely, the end head is completely placed into the space, the space is left, at the moment, the angle is converted, the distance between the bending part of the detection rod and the far end of the end head (namely, the end of the end head, which is far away from the detection rod) is measured, if the insertion can be just carried out in the space, the record is 5mm, and if the space is left, the record. The widths of the front, middle and rear gaps of the tibiofibular are measured respectively in the operation, the total length and the widened length of the tibiofibular are measured through the scale lines of the detection rod on the detection rod, and the widened range and proportion are calculated so as to provide reference for accurately selecting an operation scheme clinically.

Tibiofibular clearance data is accurate under measuring stick measurement, has reduced surgical instruments quantity, and the cost is reduced has reduced operation time and operation, is favorable to improving the operation effect, is favorable to the postoperative rehabilitation.

Of course, the above is only a specific application example of the present invention, and the protection scope of the present invention is not limited at all. In addition to the above embodiments, other embodiments of the present invention are also possible. All the technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the scope of the present invention as claimed.

Claims

1. The measuring rod for the tibiofibular space is characterized by comprising a handle (1), a detecting rod (2) and a head (3); one end of the detection rod (2) is connected with the handle (1), and the other end is connected with the end part of the end head (3); and the detection rod (2) and the end head (3) are respectively provided with a detection rod scale mark (2.1) and an end head scale mark (3.1).

2. The tibiofibular space measuring rod as set forth in claim 1, wherein the angle between the axis of said tip (3) and the axis of said probe rod (2) is 135 °.

3. The lower tibiofibular space measuring rod according to claim 1, wherein said tip (3) is a circular truncated cone having a bottom diameter of 4mm in contact with said detecting rod (2) and a bottom diameter of 2mm away from said detecting rod (2); the height of the circular truncated cone is 4 mm; the end scale mark (3.1) surrounds the circumferential middle of the side surface of the circular truncated cone.

4. The tibiofibular space measuring bar according to claim 1, wherein said detecting bar graduations (2.1) are circumferentially disposed along said detecting bar (2), and the gap between said detecting bar graduations (2.1) is 2 mm.

5. The tibiofibular space measuring rod as claimed in claim 1, wherein the distance of the bottom surface of said tip (3) facing away from said probe rod (2) from the outside of the bend of said probe rod (2) is 5 mm.

6. The lower tibiofibular space measuring stick of any one of claims 1-5, wherein said probe stick (2) has a length of 100 mm-150 mm.