CN215739316U - Thoracolumbar vertebral pedicle puncture needle and thoracolumbar vertebral pedicle puncture kit - Google Patents

Thoracolumbar vertebral pedicle puncture needle and thoracolumbar vertebral pedicle puncture kit Download PDF

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Publication number
CN215739316U
CN215739316U CN202120763577.3U CN202120763577U CN215739316U CN 215739316 U CN215739316 U CN 215739316U CN 202120763577 U CN202120763577 U CN 202120763577U CN 215739316 U CN215739316 U CN 215739316U
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puncture
section
main body
body segment
thoracolumbar
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段旭林
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Sichuan Tianxiang Orthopaedic Hospital
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Sichuan Tianxiang Orthopaedic Hospital
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34—Trocars; Puncturing needles
    • A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34—Trocars; Puncturing needles
    • A61B17/3472—Trocars; Puncturing needles for bones, e.g. intraosseus injections
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34—Trocars; Puncturing needles
    • A61B17/3494—Trocars; Puncturing needles with safety means for protection against accidental cutting or pricking, e.g. limiting insertion depth, pressure sensors
    • 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
    • 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
    • A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00526—Methods of manufacturing
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34—Trocars; Puncturing needles
    • A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
    • A61B2017/3454—Details of tips

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  • Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Veterinary Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Pathology (AREA)
  • Neurology (AREA)
  • Surgical Instruments (AREA)
  • Prostheses (AREA)

Abstract

The utility model provides a chest lumbar vertebrae pedicle of vertebral arch pjncture needle and chest lumbar vertebrae pedicle of vertebral arch puncture external member, pjncture needle includes the needle main part, and the needle main part includes continuous main part section and puncture section, and the puncture section has the puncture pointed end of keeping away from the main part section, and the sharp-end axis setting of deviating the main part section of puncture, and the outer peripheral face of puncture section sets up to the arc convex surface. In the puncture process, when the peripheral surface of the puncture section contacts harder cortical bone on the inner side of the pedicle of vertebral arch, the puncture direction of the puncture needle can be changed without puncturing the inner cortical bone, so that the damage to tissues such as nerves is reduced, and the safety of the puncture process is improved. Meanwhile, the arc-shaped convex surface has the function of guiding the puncture needle, so that the hand feeling of an operator in the puncture process is improved, and the puncture operation is favorably carried out.

Description

Thoracolumbar vertebral pedicle puncture needle and thoracolumbar vertebral pedicle puncture kit
Technical Field
The utility model relates to the field of medical equipment, in particular to a thoracolumbar vertebral pedicle puncture needle and a thoracolumbar vertebral pedicle puncture kit.
Background
Thoracolumbar fracture refers to the destruction of thoracolumbar bone continuity caused by external force, and is a common spinal injury. The minimally invasive surgery is mostly adopted to treat the thoracolumbar fracture of patients clinically. The existing method for treating thoracolumbar fracture by minimally invasive surgery mainly comprises thoracolumbar percutaneous pedicle screw placement and percutaneous balloon dilatation vertebroplasty, and both the two surgical methods need to puncture the pedicle of vertebral arch or place pedicle screw nails in the pedicle of vertebral arch of a patient by using the thoracolumbar percutaneous puncture device. The tail end of a puncture needle of the existing thoracolumbar percutaneous puncture device is provided with a handle so that an operator can conveniently hold the handle to operate the thoracolumbar percutaneous puncture device during an operation.
The inventor researches and finds that the prior puncture needle has the following defects:
the needle head of the existing puncture needle is in a symmetrical rhomboid cone shape, so that the needle head is easy to puncture the inner wall of the vertebral pedicle to damage important tissues such as nerves in the vertebral canal, and the hand feeling of an operator is poor during puncture.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a thoracolumbar vertebral pedicle puncture needle and a thoracolumbar vertebral pedicle puncture kit, which can solve the problem that the inner wall of a vertebral pedicle is punctured to damage important tissues such as nerves in a vertebral canal in the puncture process, and an operator feels good during puncture.
The embodiment of the utility model is realized by the following steps:
in a first aspect, the present invention provides a thoracolumbar pedicle puncture needle, comprising:
the needle body, the needle body includes continuous main part section and puncture section, and the puncture section has the puncture tip of keeping away from the main part section, and the axis setting of the skew main part section of puncture tip, and the outer peripheral face of puncture section sets up to the arc convex surface.
In an alternative embodiment, the orthographic projection of the piercing tip in a plane perpendicular to the direction of extension of the body segment is located within an area enclosed by the outer contour of a cross section of the body segment, wherein the cross section of the body segment is a section perpendicular to the direction of extension of the body segment.
In an alternative embodiment, the orthographic projection of the piercing tip in a plane perpendicular to the direction of extension of the body segment lies on the outer contour of a cross-section of the body segment, wherein the cross-section of the body segment is a section perpendicular to the direction of extension of the body segment.
In an alternative embodiment, the main body section is integrally formed with the penetrating section.
In an alternative embodiment, the main body segment is provided with graduation marks arranged in the extension direction of the main body segment.
In an alternative embodiment, the main body segment has a circular cross-sectional shape, wherein the cross-section of the main body segment is a cross-section perpendicular to the extension direction of the main body segment.
In an alternative embodiment, the thoracolumbar pedicle puncture needle further comprises a striker connected to an end of the main body segment remote from the puncture segment.
In an alternative embodiment, the striker is a circular plate or a square plate.
In an alternative embodiment, the body segment is welded to the striker.
In a second aspect, the present invention provides a thoracolumbar pedicle puncture kit comprising:
the knocking hammer is used for knocking a knocked plate at one end of the main body section far away from the puncture section.
The embodiment of the utility model has the beneficial effects that:
in summary, the present embodiment provides a thoracolumbar pedicle puncture needle, the needle body includes a main body section and a puncture section connected to each other, an outer peripheral surface of the puncture section is configured as an arc convex surface, and a puncture tip of the puncture section away from the main body section is offset from an axis of the main body section, that is, the puncture tip is not located on the axis of the main body section, and the two are eccentrically located. In the puncture process, when the peripheral surface of the puncture section contacts harder cortical bone on the inner side of the pedicle of vertebral arch, the puncture direction of the puncture needle can be changed without puncturing the inner cortical bone, so that the damage to tissues such as nerves is reduced, and the safety of the puncture process is improved. Meanwhile, the arc-shaped convex surface has the function of guiding the puncture needle, so that the hand feeling of an operator in the puncture process is improved, and the puncture operation is favorably carried out.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a first perspective view of a thoracolumbar pedicle needle in accordance with an embodiment of the utility model;
fig. 2 is a second perspective view of a thoracolumbar pedicle needle in accordance with an embodiment of the utility model.
Icon:
100-a needle body; 110-a body section; 111-axis; 120-a piercing section; 121-a piercing tip; 122-a convex arc surface; 200-a struck piece.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the description refers must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 and 2, the thoracolumbar pedicle puncture needle provided in the present embodiment is not easy to break the inner wall of the pedicle of vertebral arch to damage important tissues such as nerves in the vertebral canal during the puncture operation, and has good hand feeling for the operator during the puncture, high safety of the puncture operation, and high success rate.
In this embodiment, the thoracolumbar pedicle puncture needle includes:
the needle body 100, the needle body 100 comprises a body section 110 and a puncture section 120 connected, the puncture section 120 has a puncture tip 121 far away from the body section 110, the puncture tip 121 is arranged offset from the axis 111 of the body section 110, i.e. the puncture tip 121 is offset from the axis 111 of the body section 110, and the outer circumference of the puncture section 120 is arranged as an arc-shaped convex surface 122.
In the thoracolumbar pedicle puncture needle provided by the present embodiment, the needle body 100 includes a main body segment 110 and a puncture segment 120 connected to each other, an outer peripheral surface of the puncture segment 120 is provided with an arc convex surface 122, and the puncture segment 120 is disposed away from the axis 111 of the main body segment 110, that is, the puncture tip 121 is not located on the axis 111 of the main body segment 110, and both are disposed eccentrically. In the puncturing process, when the outer peripheral surface of the puncturing section 120 contacts harder cortical bone on the inner side of the pedicle of vertebral arch, namely the arc convex surface 122 of the puncturing section 120 contacts harder cortical bone on the inner side of the pedicle of vertebral arch, the puncturing direction of the puncturing needle can be changed without puncturing the inner cortical bone, so that the damage to tissues such as nerves is reduced, and the safety of the puncturing process is improved.
Meanwhile, the arc convex surface 122 has the function of guiding the puncture needle, so that the hand feeling of an operator in the puncture process is improved, and the puncture operation is facilitated.
In this embodiment, optionally, the main body section 110 and the piercing section 120 are both made of a metal material, for example, a stainless steel material, and the main body section 110 and the piercing section 120 can be integrally formed, so that the processing and the manufacturing are convenient, the processing efficiency is high, and the processing and the manufacturing cost is reduced. Meanwhile, the integrally formed main body section 110 and the puncture section 120 are tightly combined, the whole structure is firm and reliable, the puncture section is not easy to damage in use, the service life is long, and therefore the use cost is reduced.
It should be understood that the main body segment 110 and the piercing segment 120 may be made of other materials, and the main body segment 110 and the transfer segment may be integrally fixed by welding or other means.
When the needle body 100 is machined, the metal rod can be divided into two sections for machining, namely, a dividing line is preset on the metal rod, the respective lengths of the main body section 110 and the puncture section 120 are determined, the dividing line can be drawn on the metal rod, and the dividing line can be a closed ring surrounding the axis 111 of the metal rod, so that the dividing line can be conveniently observed from different angles of the metal rod, and errors are not easy to occur in machining. The main body segment 110 may be machined first, the main body segment 110 is polished to form a cylindrical outer surface, and the outer diameter of the main body segment 110 is reduced to a predetermined value, and polishing is stopped, that is, the main body segment 110 is a cylindrical rod, and the outer profile of the cross section of the main body segment 110 is a circle, wherein the cross section of the main body segment 110 is a section perpendicular to the axis 111 of the main body segment 110. Obviously, when the main body segment 110 is machined, the grinding process can be performed in a manner of matching coarse grinding and fine grinding, so as to improve the machining quality. After the main body segment 110 is machined, the piercing segment 120 is machined, and similarly, the piercing segment 120 may be machined by a combination of rough grinding and finish grinding, the outer circumferential surface of the piercing segment 120 is machined to be an arcuate convex surface 122, and the piercing tip 121 of the piercing segment 120 is offset from the axis 111 of the main body segment 110.
It is understood that in other embodiments, the body segment 110 and the piercing segment 120 may be machined simultaneously, and the needle body 100 may be machined using a machining means other than grinding.
In this embodiment, the main body segment 110 and the puncturing tip 121 are offset, that is, the puncturing tip 121 is not located on the extension line of the axis 111 of the main body segment 110, so that the needle body 100 can slide relative to the inner wall of the pedicle when contacting the inner wall of the pedicle during puncturing, and the inner wall of the pedicle is not easily punctured, thereby increasing the safety and the success rate of puncturing. The degree of offset of piercing tip 121 from axis 111 of body segment 110 is set as desired. For example, in the present embodiment, an orthographic projection of the piercing tip 121 in a plane perpendicular to the extending direction of the main body segment 110 is located in an area enclosed by the outer contour of a cross section of the main body segment 110, wherein the cross section of the main body segment 110 is a cross section perpendicular to the extending direction of the main body segment 110. Alternatively, in other embodiments, the orthographic projection of the piercing tip 121 in a plane perpendicular to the direction of extension of the body segment 110 is located on the outer contour of the cross-section of the body segment 110, wherein the cross-section of the body segment 110 is a cross-section perpendicular to the direction of extension of the body segment 110.
It should be understood that, in the process that the needle body 100 penetrates into the pedicle of vertebral arch, the penetration depth of the needle body 100 needs to be judged, so as to adjust the penetration strategy and improve the success rate of penetration, therefore, in this embodiment, the scale marks are provided on the body segment 110 and arranged in the extending direction of the body segment 110, and the penetration depth of the needle body 100 can be accurately and clearly obtained according to the scale marks on the body segment 110, which is convenient for operation.
Furthermore, each scale of the scale marks is an annular line, so that the scale marks on the main body section 110 can be observed from different angles, and the convenience in operation is improved.
In this embodiment, the thoracolumbar pedicle puncture needle may further include a striking member 200 connected to the needle body 100, and during the puncture operation, the striking member 200 may be struck by a striking hammer, so as to perform the puncture operation of the needle body 100.
Optionally, the struck piece 200 is a plate structure, the struck piece 200 may be a stainless steel plate, the struck piece 200 may be a square plate, a circular plate, an elliptical plate, or the like, and the struck piece 200 and the needle body 100 are welded and fixed. Specifically, one end of the main body segment 110 of the needle body 100, which is far away from the puncture segment 120, is welded and fixed with the struck piece 200, and the end of the main body segment 110 is located at the middle position of the struck piece 200, so that the struck piece 200 is stressed uniformly, external force acting on the needle body 100 is transmitted along the extending direction of the needle body 100 better, and the puncture success rate is improved.
Obviously, in other embodiments, the impact member 200 may be made of other materials, and the impact member 200 and the needle body 100 may be connected into a whole by other fixing methods.
According to the thoracolumbar pedicle puncture needle provided by the embodiment, the puncture tip 121 is offset from the axis 111 of the main body segment 110, so that the inner wall of the pedicle of vertebral arch is not easy to break to damage important tissues such as nerves in a vertebral canal in the puncture process, and an operator feels good in hand feeling during puncture.
The embodiment also provides a thoracolumbar pedicle puncture kit, which comprises the knocking hammer and the puncture needle mentioned in the embodiment, wherein the knocking hammer is used for knocking and puncturing the impacted element 200 of the puncture needle during the puncture operation, so that the needle body 100 can be punctured into the tissue.
Because the puncture tip 121 of the puncture needle and the axis 111 of the main body section 110 are offset, the inner cortical bone of the vertebral pedicle is not easy to puncture in the puncture process, the puncture safety is high, and the success rate is high.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A thoracolumbar pedicle puncture needle is characterized by comprising:
the needle comprises a needle body (100), the needle body (100) comprises a main body section (110) and a puncture section (120) which are connected, the puncture section (120) is provided with a puncture tip (121) far away from the main body section (110), the puncture tip (121) is arranged by deviating from an axis (111) of the main body section (110), and the outer peripheral surface of the puncture section (120) is provided with an arc convex surface (122).
2. The thoracolumbar pedicle puncture needle according to claim 1, wherein:
the orthographic projection of the puncture tip (121) in a plane perpendicular to the extending direction of the main body segment (110) is located in an area enclosed by the outer contour of the cross section of the main body segment (110), wherein the cross section of the main body segment (110) is a section perpendicular to the extending direction of the main body segment (110).
3. The thoracolumbar pedicle puncture needle according to claim 1, wherein:
an orthographic projection of the piercing tip (121) in a plane perpendicular to the direction of extension of the body segment (110) lies on a cross-sectional outer contour of the body segment (110), wherein the cross-section of the body segment (110) is a section perpendicular to the direction of extension of the body segment (110).
4. The thoracolumbar pedicle puncture needle according to claim 1, wherein:
the main body section (110) is integrally formed with the piercing section (120).
5. The thoracolumbar pedicle puncture needle according to claim 1, wherein:
the main body section (110) is provided with scale marks arranged along the extending direction of the main body section (110).
6. The thoracolumbar pedicle puncture needle according to claim 1, wherein:
the main body segment (110) has a circular cross-sectional shape, wherein the main body segment (110) has a cross-section perpendicular to the extension direction of the main body segment (110).
7. The thoracolumbar pedicle puncture needle according to claim 1, wherein:
the thoracolumbar pedicle puncture needle further comprises a struck piece (200), and the struck piece (200) is connected with one end, far away from the puncture section (120), of the main body section (110).
8. The thoracolumbar pedicle puncture needle according to claim 7, wherein:
the impacted part (200) is a circular plate or a square plate.
9. The thoracolumbar pedicle puncture needle according to claim 7, wherein:
the main body segment (110) is fixed with the impact piece (200) in a welding mode.
10. The utility model provides a thoracolumbar vertebrae pedicle of vertebral arch puncture external member which characterized in that includes:
a rapping hammer for rapping the strike plate of the end of said body segment (110) remote from said piercing segment (120), and a thoracolumbar pedicle puncture needle as claimed in any of claims 1-9.
CN202120763577.3U 2021-03-04 2021-04-14 Thoracolumbar vertebral pedicle puncture needle and thoracolumbar vertebral pedicle puncture kit Active CN215739316U (en)

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CN202120465676 2021-03-04
CN2021204656763 2021-03-04

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CN202120763577.3U Active CN215739316U (en) 2021-03-04 2021-04-14 Thoracolumbar vertebral pedicle puncture needle and thoracolumbar vertebral pedicle puncture kit

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