CN112494158A - Preparation method of measuring rod for measuring space between universal screws of vertebral pedicle - Google Patents
Preparation method of measuring rod for measuring space between universal screws of vertebral pedicle Download PDFInfo
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- CN112494158A CN112494158A CN202011354016.4A CN202011354016A CN112494158A CN 112494158 A CN112494158 A CN 112494158A CN 202011354016 A CN202011354016 A CN 202011354016A CN 112494158 A CN112494158 A CN 112494158A
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- mandrel
- measuring
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- end head
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- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 239000010410 layer Substances 0.000 claims abstract description 32
- 238000000034 method Methods 0.000 claims abstract description 16
- 239000011241 protective layer Substances 0.000 claims abstract description 14
- 239000002184 metal Substances 0.000 claims abstract description 11
- 229910052751 metal Inorganic materials 0.000 claims abstract description 11
- 239000003086 colorant Substances 0.000 claims description 10
- 239000011347 resin Substances 0.000 claims description 6
- 229920005989 resin Polymers 0.000 claims description 6
- 229910001369 Brass Inorganic materials 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 239000010951 brass Substances 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 230000008569 process Effects 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 4
- 238000005259 measurement Methods 0.000 description 5
- 238000005520 cutting process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/06—Measuring instruments not otherwise provided for
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
- A61B17/7074—Tools specially adapted for spinal fixation operations other than for bone removal or filler handling
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/06—Measuring instruments not otherwise provided for
- A61B2090/061—Measuring instruments not otherwise provided for for measuring dimensions, e.g. length
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Surgery (AREA)
- Neurology (AREA)
- Heart & Thoracic Surgery (AREA)
- General Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- Engineering & Computer Science (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Pathology (AREA)
- Surgical Instruments (AREA)
- Prostheses (AREA)
Abstract
The measuring rod comprises a rod body and an end head part, the rod body comprises a core rod, a middle layer and an identification protective layer on the outermost side from inside to outside, and the end head part is provided with an arc surface which is used for being attached to the outer circular surface of a screw seat of the pedicle universal screw. The method comprises the following steps of A, preparing the mandrel by adopting flexible metal, B, adhering and distributing the middle layer on the mandrel, and reserving a length for connecting the mandrel with the head. And step C, adhering and wrapping the identification protective layer outside the middle layer, and then adhering and fixing the rod body and the end head part to finish the preparation of the measuring rod. The measuring rod prepared by the preparation method for measuring the space between the universal screws of the vertebral pedicle is convenient and fast to operate, and the treatment efficiency and effect of the implementation process of the spinal fixation are greatly improved.
Description
Technical Field
The invention relates to the technical field of medical auxiliary instruments, in particular to a preparation method of a measuring rod for measuring the distance between universal screws of a vertebral pedicle.
Background
The combined use of two kinds of spinal internal fixation instruments, namely a pedicle universal screw and a connecting rod, is a more common internal fixation mode in the spinal internal fixation. The connecting rod is generally made of a hard high-strength metal such as titanium alloy, and has a fixed specification (for example, a commercially available connecting rod product having a diameter of 5.5mm and a length of 50, 60 to 100, 140mm in different length models, such as Fuchang medical instruments Co., Ltd., Meizhou),
when the spinal internal fixation is implemented, after the pedicle universal screws are fixed on the spine of a patient, the length of a connecting rod for penetrating and connecting a plurality of pedicle universal screws needs to be determined according to the specific patient condition, namely the continuous distance among the pedicle universal screws needs to be accurately measured, and then a tool is used on site in an operating room to intercept and bend the connecting rod. And then fixed between the universal screw nails of the vertebral pedicle, thereby realizing the force application to the spine of the patient. For the positions of the head end and the tail end of the connecting rod exposed out of the universal pedicle screw, the length is generally expected to be as short as possible, for example, the head end and the tail end of the connecting rod are exposed out of the universal pedicle screw by only 0.3-0.5mm, which is ideal, so that the exposed parts can be prevented from causing additional stimulation and even damage to human tissues.
In the process of bending the connecting rod, as the connecting rod can provide a longer force arm in the axial direction, the operation is relatively easy, but the process of cutting the axial dimension is time-consuming and labor-consuming, in the existing operation process, after the pedicle universal screws are fixed on the spine of a patient, a flexible rope such as a suture line or even a cotton line is usually lapped on screw seats of a plurality of pedicle universal screws, the track of the connecting rod is simulated, then two hands clamp the thread head parts outside the screw seats at the two ends, after the flexible rope is taken out, the length of the flexible rope between the two hands is obtained by measuring the length of the flexible rope between the two hands by using a ruler, the length of the connecting rod to be cut is obtained, and as the flexible rope has no rigidity, the mode can not be coincided with the real shape of the connecting rod after installation, only the track distance between the screw seats can be obtained by measuring, so that a doctor is required to adjust the length of the flexible rope between the two hands according to experience measurement The first interception of the connecting rod is carried out, a large margin is usually left after the first interception, for example, under the condition that the exposed part of the connecting rod at one end meets the requirement, the other end is even exposed by more than 5mm, and the interception operation needs to be carried out again. As mentioned above, since the cutting process of the connecting rod is time-consuming and labor-consuming, the cutting and correcting length for many times will inevitably increase the time consumption of the operation, which not only increases the discomfort of the patient, but also increases the fatigue of the medical staff due to long-time standing and waiting.
The utility model discloses a set up the measuring device with the fixed instrument of vertebra that this application inventor's team filed on the same day with this application, including one can dismantle the location of being connected with pedicle of vertebral arch universal screw and hold in the palm, one with but the dead lever of swivelling joint is held in the palm in the location, and one with the measuring stick that the connective bar diameter is the same, measure the stick and make by the flexible metal material such as red copper bar or brass bar, through inciting somebody to action it fixes to measure the stick behind the screw seat, it is right to measure the stick and carry out moulding to can be more accurate measurement obtains a plurality ofly interval between the pedicle of vertebral arch universal screw, it also needs right to the connective bar carries out the data of intercepting. Since in this solution it is necessary to straighten the flexible metal rod after shaping and then measure the fold to the end, a certain operating skill is still required for the operator and the overall efficiency leaves room for improvement. That is, if the length data can be known after being fastened to the screw seat, the efficiency of the operation can be further improved.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a method for preparing a measuring rod for measuring the distance between universal pedicle screws, so as to reduce or avoid the aforementioned problems.
In order to solve the technical problem, the invention provides a preparation method of a measuring rod for measuring the space between universal pedicle screws, the measuring rod comprises a rod body and an end head part, the rod body comprises a heart rod, a middle layer and an identification protective layer on the outermost side from inside to outside, and the end head part is provided with an arc surface which is used for being attached to the outer circular surface of a screw seat of the universal pedicle screws. Which comprises the following steps of,
step A, preparing the mandrel by adopting flexible metal,
and B, adhering and distributing the intermediate layer on the mandrel, and reserving a length for connecting the mandrel with the head.
And step C, adhering and wrapping the identification protective layer outside the middle layer, and then adhering and fixing the rod body and the end head part to finish the preparation of the measuring rod.
Preferably, in step a, the flexible metal is a copper bar or a brass bar.
Preferably, in step B, the intermediate layer is formed by disposing a plurality of color stripes of three colors or five colors repeatedly arranged in an equally spaced sequence.
Preferably, in step B, the width of the ribbon of each single strip is 1 mm.
Preferably, in step B, the color bands are arranged in three colors such as "black, blue, green", or in five colors such as "blue, white, green, black, yellow".
Preferably, in step B, the intermediate layer does not completely surround the mandrel, forming a plane of at least about 2 mm.
Preferably, in step C, the mark protection layer is 0.3-0.5mm thick, and is provided with a length scale and a numerical mark.
Preferably, the end head portion is an arcuate metal block or a resin block.
Preferably, the end head portion is provided with a mounting hole having the same diameter as the mandrel.
The measuring rod prepared by the preparation method for measuring the space between the universal screws of the vertebral pedicle is convenient and fast to operate, and the treatment efficiency and effect of the implementation process of the spinal fixation are greatly improved.
Drawings
The drawings are only for purposes of illustrating and explaining the present invention and are not to be construed as limiting the scope of the present invention. Wherein the content of the first and second substances,
FIG. 1 is a schematic structural diagram of a measuring rod for measuring the spacing between universal pedicle screws, according to an embodiment of the invention;
FIG. 2 is a schematic perspective exploded view of the measurement stick of FIG. 1;
FIG. 3 is a schematic cross-sectional view A-A of FIG. 1;
FIG. 4 is a schematic partial structural view of the intermediate layer of FIG. 1 in an expanded state;
fig. 5 is a schematic view of a part of the structure of the marking protective layer of fig. 2 in an unfolded state.
Detailed Description
In order to more clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will now be described with reference to the accompanying drawings. Wherein like parts are given like reference numerals.
FIG. 1 is a schematic structural diagram of a measuring rod for measuring the spacing between universal pedicle screws, according to an embodiment of the invention; FIG. 2 is a schematic perspective exploded view of the measurement stick of FIG. 1; FIG. 3 is a schematic cross-sectional view A-A of FIG. 1; FIG. 4 is a schematic partial structural view of the intermediate layer of FIG. 1 in an expanded state; fig. 5 is a schematic view of a part of the structure of the marking protective layer of fig. 2 in an unfolded state. As shown in reference to figures 1 to 5,
the invention provides a preparation method of a measuring rod for measuring the distance between universal pedicle screws, the measuring rod is used for measuring the distance between the universal pedicle screws after a plurality of universal pedicle screws are fixed, namely the length required by a connecting rod, the measuring rod comprises a rod body 1 and an end head part 2, the rod body 1 comprises a heart rod 11, a middle layer 12 and an identification protective layer 13 on the outermost side from inside to outside, and the end head part 2 is provided with an arc surface 21 which is used for being attached to the outer circular surface of a screw seat of the universal pedicle screw. Which comprises the following steps of,
step a, the mandrel 11 is made of a flexible metal such as a copper bar or brass bar or the like,
therefore, the connecting rod can be easily bent manually, and certain deformation capacity can be kept under the condition of keeping certain rigidity, so that the real buckling condition of the connecting rod can be well simulated. The mandrel 11 may be 3 to 5mm in diameter, i.e., about 1-3mm smaller than the diameter of the conventional connector rods (e.g., the 5.5mm diameter connector rod product available from Foster medical devices, Inc., Mey.).
And step B, adhering and distributing the intermediate layer 12 on the mandrel 11, and reserving a certain length for connecting the mandrel 11 with the head 2.
Because the internal fixation of vertebra can certainly need to go on at patient's open surface of a wound, and at patient's operation position, if there is not certain colour difference, even if there is the sign to have the scale in any instrument that uses, rely on doctor's naked eye also can be difficult to swift identification scale on the instrument, consequently, this application is through setting up intermediate level 12 forms the colour difference background to can be convenient for the quick accurate discernment of naked eye the identification scale of sign protective layer 13. The intermediate layer 12 may be formed by disposing a plurality of three-color or five-color ribbons 121 that are repeatedly arranged at equal intervals, each ribbon 121 may be a resin material having a certain thickness (for example, a thickness of 0.5 to 0.8mm), such as a covering of a wire core, the ribbon 121 may be arranged in three colors, such as "black, blue, and green", or in five colors, such as "blue, white, green, black, and yellow", the width of each ribbon 121 may be 1mm, and the plurality of ribbons 121 may be bonded to the mandrel 11 in a predetermined order, so that the intermediate layer 12 may be formed.
Referring to fig. 2 and 3, since the measuring rod for measuring the universal screw spacing of the pedicle provided by the invention needs to be pressed and fixed from above during use, when the intermediate layer 12 is arranged, a tangent line of the mandrel 11 can be used as a boundary, and the mandrel 11 is not completely wrapped, so that a plane of at least about 2mm can be formed, and the measuring rod is convenient to be fixed and positioned during use.
In the manufacturing process, a plurality of single color ribbons 121 may be adhered to the mandrel 11 in a predetermined sequence, and then an excess portion of the color ribbons 121 may be cut off in a tangential direction of the mandrel 11, so that the remaining color ribbons 121 adhered and fixed on the mandrel 11 may form the intermediate layer 12.
And step C, adhering and wrapping the identification protective layer 13 outside the middle layer 12, and then adhering and fixing the rod body 1 and the end head part 2 to finish the preparation of the measuring rod.
The mark protection layer 13 may be made of a resin film, the mark protection layer 13 is used for tightly wrapping the mandrel 11 and the intermediate layer 12, and on the other hand, the mark protection layer 13 may be transparent, and is pre-provided with length scales and numerical marks, for example, the marks are printed at intervals of 5mm and provided with numerical values (0,5,10, 15), the tops and bottoms of the numerical values are respectively provided with scales at intervals of 1mm, which are indicated by dashed lines, and the 5mm intervals are provided with long dashed lines, which penetrate through the printed numerical values, so that the lengths can be conveniently observed and determined in use. The mark protection layer 13 can be made of PET resin material with the thickness of 0.3-0.5 mm.
After the middle layer 12 is prepared, the strip-shaped thin film material for preparing the identification protective layer 13 is wrapped and bonded on the outer side of the middle layer 12, and finally the preparation of the measuring rod for measuring the space between the universal screws of the vertebral pedicle provided by the application can be completed.
In the preparation during the sign protective layer 13, can set up the guarantee and have a set of dash line that is used for sign 1mm spaced scale be used for fixed positioning the plane position, like this, the numerical value that has the arabic numeral just must be in planar arbitrary one side, when using at patient's open surface of a wound and measure, the doctor just can be very convenient basis intermediate level 12 typewriter ribbon 121 finds corresponding numerical value reading and scale to can be in the surface of a wound, the measurement stick bucking installation location back that is used for measuring pedicle of vertebral arch universal screw interval that this application provided, directly read the required length of acquisition connective bar promptly.
Referring to fig. 2, the tip portion 2 may be an arc-shaped metal block or a resin block, and the tip portion 2 may be provided with a mounting hole 22 having the same diameter as that of the mandrel 11, so that after the rod body 1 is adhesively fixed to the tip portion 2 through the mounting hole 22, the zero point of the scale of the identification protection layer 13 may be located on the arc-shaped surface 21, and the minimum diameter of the arc-shaped surface 21 may be set to be the same as the outer diameter of the screw seat of the pedicle screw. When the screw is used, the arc-shaped surface 21 is attached to the outer circular surface of the screw base, so that the zero point of the scale of the identification protective layer 13 is located on the outer circular surface of the screw base, and the length reading of the other end can be more accurate.
The measuring rod prepared by the preparation method for measuring the space between the universal screws of the vertebral pedicle is convenient and fast to operate, and the treatment efficiency and effect of the implementation process of the spinal fixation are greatly improved.
It should be appreciated by those of skill in the art that while the present invention has been described in terms of several embodiments, not every embodiment includes only a single embodiment. The description is given for clearness of understanding only, and it is to be understood that all matters in the embodiments are to be interpreted as including technical equivalents which are related to the embodiments and which are combined with each other to illustrate the scope of the present invention.
The above description is only an exemplary embodiment of the present invention, and is not intended to limit the scope of the present invention. Any equivalent alterations, modifications and combinations can be made by those skilled in the art without departing from the spirit and principles of the invention.
Claims (9)
1. The measuring rod comprises a rod body and an end head part, the rod body comprises a core rod, a middle layer and an identification protective layer on the outermost side from inside to outside, and the end head part is provided with an arc surface which is used for being attached to the outer circular surface of a screw seat of the pedicle universal screw. Which comprises the following steps of,
step A, preparing the mandrel by adopting flexible metal,
and B, adhering and distributing the intermediate layer on the mandrel, and reserving a length for connecting the mandrel with the head.
And step C, adhering and wrapping the identification protective layer outside the middle layer, and then adhering and fixing the rod body and the end head part to finish the preparation of the measuring rod.
2. The method of claim 1, wherein in step a, the flexible metal is a copper bar or a brass bar.
3. The method as claimed in claim 1, wherein in step B, the intermediate layer is provided by a plurality of color stripes of three colors or five colors repeatedly arranged in an equally spaced sequence.
4. A method according to claim 3 wherein in step B the width of the ribbon of each individual stripe is 1 mm.
5. The method of claim 3, wherein in step B, the color bands are arranged in three colors such as "black, blue, green", or in five colors such as "blue, white, green, black, yellow".
6. The method of claim 1 wherein in step B, said intermediate layer does not completely surround said mandrel, forming a plane of at least about 2 mm.
7. The method according to claim 1, wherein in step C, the marking protection layer is 0.3-0.5mm thick, provided with a length scale and a numerical marking.
8. The method of claim 1, wherein the tip portion is an arcuate metal or resin block.
9. A method according to claim 1, wherein the end head portion is provided with a mounting hole having the same diameter as the mandrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011354016.4A CN112494158A (en) | 2020-11-27 | 2020-11-27 | Preparation method of measuring rod for measuring space between universal screws of vertebral pedicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011354016.4A CN112494158A (en) | 2020-11-27 | 2020-11-27 | Preparation method of measuring rod for measuring space between universal screws of vertebral pedicle |
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| Publication Number | Publication Date |
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| CN112494158A true CN112494158A (en) | 2021-03-16 |
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| CN202011354016.4A Pending CN112494158A (en) | 2020-11-27 | 2020-11-27 | Preparation method of measuring rod for measuring space between universal screws of vertebral pedicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1243961A (en) * | 1998-06-12 | 2000-02-09 | 阿尔卡塔尔公司 | Optical fibers and identifying method therefor |
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| CN204971538U (en) * | 2015-09-25 | 2016-01-20 | 项良碧 | Easy pedicle of vertebral arch of identification tape scale mark awl of opening a way |
| WO2016156316A1 (en) * | 2015-03-30 | 2016-10-06 | Symedrix Gmbh | Medical measuring wire |
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| CN111297364A (en) * | 2020-03-12 | 2020-06-19 | 南京市口腔医院 | Measurer for measuring disease damage area of oral mucosa |
| CN211633470U (en) * | 2019-11-28 | 2020-10-09 | 上海长海医院 | Pedicle of vertebral arch opens a way and bores convenient to measure, change |
| CN213850986U (en) * | 2020-11-27 | 2021-08-03 | 庄颖 | Measuring rod for measuring space between universal screws of vertebral pedicle |
-
2020
- 2020-11-27 CN CN202011354016.4A patent/CN112494158A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1243961A (en) * | 1998-06-12 | 2000-02-09 | 阿尔卡塔尔公司 | Optical fibers and identifying method therefor |
| DE10134008A1 (en) * | 2001-07-12 | 2003-01-30 | Elringklinger Ag | Fluoropolymer tubes, for use e.g. as catheters, comprising ring-form X-ray-distinguishable markings, e.g. of titanium dioxide, with an X-ray-distinguishable coating |
| WO2016156316A1 (en) * | 2015-03-30 | 2016-10-06 | Symedrix Gmbh | Medical measuring wire |
| CN204971538U (en) * | 2015-09-25 | 2016-01-20 | 项良碧 | Easy pedicle of vertebral arch of identification tape scale mark awl of opening a way |
| CN207745200U (en) * | 2017-05-24 | 2018-08-21 | 山西省肿瘤医院 | The disposable absorbability scale of laparoscopic surgery |
| CN107412935A (en) * | 2017-07-28 | 2017-12-01 | 长飞光纤光缆股份有限公司 | A kind of tape label insertion type medical catheter and preparation method thereof |
| CN208926532U (en) * | 2017-10-31 | 2019-06-04 | 杨卓臻 | A kind of Flexible ureteroscope guide sheath of mark with a scale |
| CN208901995U (en) * | 2018-09-20 | 2019-05-24 | 中国人民解放军第二军医大学第二附属医院 | A kind of spinal operation pitman length-measuring appliance |
| CN211633470U (en) * | 2019-11-28 | 2020-10-09 | 上海长海医院 | Pedicle of vertebral arch opens a way and bores convenient to measure, change |
| CN111297364A (en) * | 2020-03-12 | 2020-06-19 | 南京市口腔医院 | Measurer for measuring disease damage area of oral mucosa |
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