CN113081218A - Kirschner wire for orthopedic operation - Google Patents
Kirschner wire for orthopedic operation Download PDFInfo
- Publication number
- CN113081218A CN113081218A CN202110296576.7A CN202110296576A CN113081218A CN 113081218 A CN113081218 A CN 113081218A CN 202110296576 A CN202110296576 A CN 202110296576A CN 113081218 A CN113081218 A CN 113081218A
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- Prior art keywords
- limit
- needle
- limiting
- kirschner wire
- snap rings
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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
- A61B17/56—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
- A61B17/683—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin comprising bone transfixation elements, e.g. bolt with a distal cooperating element such as a nut
-
- 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
- A61B17/60—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 for external osteosynthesis, e.g. distractors, contractors
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- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Neurology (AREA)
- Surgical Instruments (AREA)
Abstract
The invention relates to the technical field of medical instruments, in particular to a Kirschner wire for orthopedic surgery, which comprises a needle rod and needle heads, wherein two ends of the needle rod are symmetrically provided with limit needle heads convenient for wrapping bone cement, each limit needle head mainly comprises a limit bulb and a limit tube, the limit bulbs and the limit tubes are sleeved on the needle rod, the limit bulbs are arranged on the outer side surfaces of the limit tubes, the length of each limit needle head is one third of the length of the needle rod, each limit bulb is composed of limit snap rings arranged at equal intervals, the diameter of each limit snap ring is gradually reduced from the middle part to the two ends, the limit tubes are composed of limit snap rings arranged at equal intervals, the diameters of the limit snap rings are the same, the limit snap rings arranged at equal intervals at the two ends of the Kirschner wire enhance the stability of bone cement package, so that when the Kirschner wire is taken out, the bone cement can be completely taken out, and the residue of foreign matters is avoided, so that the infection rate of the second-stage operation is reduced.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a Kirschner wire for orthopedic surgery.
Background
The Kirschner wire is a commonly-used internal fixation material for orthopedics, the original specification of the Kirschner wire is generally fixed at about twenty centimeters, the diameter of the Kirschner wire has different specifications between 0.5-2 millimeters, the Kirschner wire is used for fixing short and small fractures or avulsion fractures and other fractures with low stress, and is also used for fixing temporary fracture blocks in the orthopedic operation, because of wide application, the maximum diameter of the Kirschner wire is gradually increased to 4 millimeters, and along with the development of an external fixation support, the Kirschner wire is matched with an external fixation lock pin to fix pelvis fractures, calcaneus fractures and other emergent and large fractures. For the operation treatment of osteomyelitis, on the basis of thoroughly eliminating necrosis infected bones, antibiotic bone cement is adopted for filling a bone infected area so as to improve the sterilization efficiency on an infected part, and meanwhile, in order to improve the stability of fracture broken ends, rigid filling of a Kirschner wire embedded with bone cement is mostly adopted, but a large number of operations expose the problem that the bone cement is difficult to completely take out, so that the requirement for completely taking out the bone cement is urgently needed, and the residual Kirschner wire is avoided.
Disclosure of Invention
In order to overcome the defect that the existing bone cement is difficult to completely take out, the invention provides a Kirschner wire for orthopedic surgery, which solves the problem through limiting pieces arranged at two ends of a needle rod.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a kirschner wire for orthopedic surgery, includes needle bar and syringe needle, and the symmetry is provided with the spacing syringe needle of the bone cement of being convenient for to wrap up in needle bar both ends, and spacing syringe needle mainly comprises spacing bulb and spacing pipe, and spacing bulb and spacing pipe all suit are on the needle bar, and spacing bulb sets up the lateral surface at spacing pipe.
Furthermore, the length of the limiting needle head is one third of the length of the needle rod.
Furthermore, the limiting ball head is composed of a first limiting clamping ring arranged at equal intervals, and the diameter of the first limiting clamping ring is gradually reduced from the middle to two ends.
Furthermore, the interval between adjacent first limiting clamping rings is 0.15-0.3 mm.
Furthermore, the limiting pipe is composed of two limiting clamping rings arranged at equal intervals, and the diameters of the two limiting clamping rings are the same.
Furthermore, the interval between two adjacent limiting snap rings is 0.15-0.3 mm.
Further, the needle bar comprises two sections of rod bodies and a connecting block in the middle, and the two sections of rod bodies are connected through the connecting block in the middle in threaded connection.
Furthermore, the center of the limiting ball head is provided with a pulling hole, and the pulling hole is communicated with a wire groove arranged outside the limiting ball head.
The bone cement packaging device has the advantages that the limiting snap rings arranged at the two ends of the Kirschner wire at equal intervals enhance the stability of bone cement packaging, so that the bone cement can be completely taken out while the Kirschner wire is taken out, the residue of foreign matters is avoided, and the infection rate of the second-stage operation is reduced.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a left side view of the present invention;
FIG. 4 is a right side view of the present invention;
in the figure, 1 is a needle rod, 11 is a rod body, 12 is a connecting block, 2 is a limiting ball head, 3 is a limiting pipe, 4 is a limiting snap ring I, 5 is a limiting snap ring II, 6 is a drawing hole, and 7 is a wire groove.
Detailed Description
As shown in figures 1 and 2, a Kirschner wire for orthopedic surgery comprises a needle rod 1 and needle heads, wherein the two ends of the needle rod 1 are symmetrically provided with limiting needle heads convenient for wrapping bone cement, the limiting needle heads mainly comprise limiting bulbs 2 and limiting pipes 3, the limiting bulbs 2 and the limiting pipes 3 are sleeved on the needle rod 1, and the limiting bulbs 2 are arranged on the outer side surfaces of the limiting pipes 3.
Through setting up the spacing syringe needle at 1 both ends of traditional needle bar, carry on spacingly at the outside bone cement of needle bar 1 to the parcel, spacing snap ring that the equidistant set up enables bone cement and firmly covers in the ke shi needle outside, can not only carry out fine disinfection of disinfecting to the bone infection district, can also improve the stability of fracture end, extract hole 6 and wire casing 7 through the spacing bulb 2 tip of steel wire cable cooperation at last, the ke shi needle that will wrap up has bone cement takes out completely, effectively avoid remaining of foreign matter, thereby reduce the infection rate of second phase operation.
The length of the limiting needle is one third of the length of the needle rod 1. So that the bone cement is completely limited and coated on the Kirschner wire, and is stable and firm.
The limiting ball head 2 is composed of a first limiting clamping ring 4 arranged at equal intervals, and the diameter of the first limiting clamping ring 4 decreases progressively from the middle to the two ends. The interval between the adjacent first limiting snap rings 4 is 0.15-0.3 mm. The limiting pipe 3 is composed of two limiting clamping rings 5 which are arranged at equal intervals, and the diameters of the two limiting clamping rings 5 are the same. The interval between two adjacent limiting snap rings 5 is 0.15-0.3 mm.
Spacing snap ring 4 and spacing snap ring two 5 through equidistant setting for bone cement is stabilized the card and is established in the recess between the snap ring, can not only improve bone cement's parcel nature, can also strengthen the joint strength with the bone piece, avoids the slippage to shift.
The needle bar 1 comprises two rod bodies 11 and a connecting block 12 in the middle, and the two rod bodies 11 are connected through the connecting block 12 in the middle of which the two rod bodies are in threaded connection. The connecting block 12 is detachably connected in a threaded manner, and is convenient and fast to install and detach.
As shown in fig. 3 and 4, the center of the limiting ball head 2 is provided with a pulling hole 6, and the pulling hole 6 is communicated with a wire groove 7 arranged outside the limiting ball head 2. The pulling-out hole 6 is in a through hole form, so that a steel wire cable can pass through and be clamped in the wire groove 7, and the Kirschner wire can be pulled out completely through the steel wire cable.
The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (8)
1. The utility model provides an orthopedic surgery uses ke shi needle, includes needle bar (1) and syringe needle, characterized by, needle bar (1) both ends symmetry is provided with the spacing syringe needle of the parcel bone cement of being convenient for, and spacing syringe needle mainly comprises spacing bulb (2) and spacing pipe (3), and spacing bulb (2) and spacing pipe (3) all suit are on needle bar (1), and spacing bulb (2) set up the lateral surface at spacing pipe (3).
2. An orthopedic k-wire according to claim 1, characterized in that the length of the limiting needle is one third of the length of the shank (1).
3. The Kirschner wire for orthopedic surgery as claimed in claim 1, wherein the limiting ball head (2) is composed of limiting snap rings (4) arranged at equal intervals, and the diameters of the limiting snap rings (4) are gradually decreased from the middle part to the two ends.
4. The Kirschner wire for orthopedic surgery as claimed in claim 3, wherein the interval between adjacent first limit snap rings (4) is 0.15-0.3 mm.
5. The Kirschner wire for orthopedic surgery according to claim 1, wherein the limiting tube (3) is composed of two limiting snap rings (5) which are arranged at equal intervals, and the diameters of the two limiting snap rings (5) are the same.
6. The Kirschner wire for orthopedic surgery as claimed in claim 5, wherein the interval between two adjacent limiting snap rings (5) is 0.15-0.3 mm.
7. The Kirschner wire for orthopedic surgery according to claim 1, wherein the needle rod (1) comprises two rod bodies (11) and a middle connecting block (12), and the two rod bodies (11) are connected through the connecting block (12) screwed in the middle of the two rod bodies.
8. The Kirschner wire for orthopedic surgery as claimed in claim 1, wherein an extraction hole (6) is formed in the center of the limiting ball head (2), and the extraction hole (6) is communicated with a wire groove (7) formed outside the limiting ball head (2).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202110296576.7A CN113081218A (en) | 2021-03-19 | 2021-03-19 | Kirschner wire for orthopedic operation |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN202110296576.7A CN113081218A (en) | 2021-03-19 | 2021-03-19 | Kirschner wire for orthopedic operation |
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CN113081218A true CN113081218A (en) | 2021-07-09 |
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CN202110296576.7A Pending CN113081218A (en) | 2021-03-19 | 2021-03-19 | Kirschner wire for orthopedic operation |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN116172680A (en) * | 2023-04-26 | 2023-05-30 | 泓欣科创(北京)科技有限公司 | Anti-withdrawal k-wire nail and k-wire nail device |
-
2021
- 2021-03-19 CN CN202110296576.7A patent/CN113081218A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN116172680A (en) * | 2023-04-26 | 2023-05-30 | 泓欣科创(北京)科技有限公司 | Anti-withdrawal k-wire nail and k-wire nail device |
CN116172680B (en) * | 2023-04-26 | 2023-12-15 | 泓欣科创(北京)科技有限公司 | Anti-withdrawal k-wire nail and k-wire nail device |
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