CN214966533U - Steel needle guider - Google Patents
Steel needle guider Download PDFInfo
- Publication number
- CN214966533U CN214966533U CN202120664877.6U CN202120664877U CN214966533U CN 214966533 U CN214966533 U CN 214966533U CN 202120664877 U CN202120664877 U CN 202120664877U CN 214966533 U CN214966533 U CN 214966533U
- Authority
- CN
- China
- Prior art keywords
- steel needle
- needle guide
- guide cylinder
- handle
- adjusting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 78
- 239000010959 steel Substances 0.000 title claims abstract description 78
- 238000005452 bending Methods 0.000 claims abstract description 11
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims 1
- 210000001872 metatarsal bone Anatomy 0.000 abstract description 9
- 210000003789 metatarsus Anatomy 0.000 abstract description 3
- 208000010392 Bone Fractures Diseases 0.000 description 8
- 206010017076 Fracture Diseases 0.000 description 8
- 230000005489 elastic deformation Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 210000000988 bone and bone Anatomy 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 230000035876 healing Effects 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000000302 ischemic effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 108010048734 sclerotin Proteins 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model provides a steel needle director: comprises a steel needle guide cylinder, a handle and a radian adjusting component; the steel needle guide cylinder is arranged in an arc shape, a channel for the steel needle to pass through is arranged in the steel needle guide cylinder, and the handle is connected to the first end of the steel needle guide cylinder; the one end of radian adjusting part is connected with the second end of steel needle guide cylinder, and the other end is connected with the handle, and the radian adjusting part is used for adjusting the distance between the second end of steel needle guide cylinder and the handle, and then adjusts the crooked radian of steel needle guide cylinder. Firstly, exposing a proximal joint surface of a fifth metatarsus, clinging to the cuboid through a guider, confirming a needle inserting point after perspective, and then adjusting the bending radian of a steel needle guide cylinder; the steel needle has certain elasticity, and can change self bending radian along with the steel needle guide cylinder when passing through the steel needle guide cylinder, thereby enabling the steel needle to be driven into metatarsal bones at a proper angle, taking the metatarsal bones as a guide needle, expanding marrow, and finally putting in a screw for fixation.
Description
Technical Field
The utility model relates to a direction location technical field when 5 metatarsal JONES fracture intramedullary is fixed specifically says a steel needle director.
Background
The fracture of the 5 th metatarsal proximal ischemic area is also called JONES fracture, the bone nonunion and the probability of secondary fracture are high, and intramedullary screw fixation is the gold standard for treating the fracture. However, it is difficult to find a proper needle insertion point and to drive a guide needle on the proximal joint surface of the 5 th metatarsal bone, and even doctors with relatively rich clinical experience can not succeed. For doctors with poor experience, multiple needle-threading failures may occur, which causes the destruction of articular surface sclerotin, directly influences the direction and length of intramedullary screws, causes bad reduction of fracture ends, influences the pressurization of fracture ends and directly influences fracture healing; in addition, the operation time can be prolonged by multiple attempts, the pain of a patient is increased, the workload of a doctor is increased, the fatigue work of the doctor is easily caused, and further medical accidents can be caused.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: the defects of the prior art are overcome, and the steel needle guider is simple to operate, adjustable in steel needle guiding radian and accurate in guiding.
The technical solution of the utility model is to provide a steel needle director with following structure: comprises a steel needle guide cylinder, a handle and a radian adjusting component; the steel needle guide cylinder is arranged in an arc shape, a channel for the steel needle to pass through is arranged in the steel needle guide cylinder, and the handle is connected to the first end of the steel needle guide cylinder; the radian adjusting assembly is used for adjusting the distance between the second end of the steel needle guide cylinder and the handle, and then adjusting the bending radian of the steel needle guide cylinder.
Preferably, the radian adjusting assembly comprises an adjusting screw rod and an adjusting nut; the handle is provided with a through hole, one end of the adjusting screw rod is connected with the second end of the steel needle guide cylinder, and the other end of the adjusting screw rod penetrates through the through hole and is in threaded connection with the adjusting nut.
Preferably, the outer circumferential wall of the adjusting nut is provided with a radially extending shifting piece.
Preferably, the adjusting screw is provided with a limiting block, and the outer diameter of the limiting block is larger than the inner diameter of the through hole.
Preferably, the steel needle guide cylinder is made of metal.
Preferably, the handle is sleeved with a rubber sleeve.
Preferably, the rubber sleeve is uniformly distributed with anti-skid wales.
After the structure more than adopting, the utility model relates to a steel needle director compares with prior art, has following advantage:
1. firstly, exposing a proximal joint surface of a fifth metatarsus, clinging to the cuboid through a guider, confirming a needle inserting point after perspective, and then adjusting the distance between the second end of the steel needle guide cylinder and the handle by screwing an adjusting nut so as to adjust the bending radian of the steel needle guide cylinder; the steel needle has certain elasticity, and can change self bending radian along with the steel needle guide cylinder when passing through the steel needle guide cylinder, thereby enabling the steel needle to be driven into metatarsal bones at a proper angle, taking the metatarsal bones as a guide needle, expanding marrow, and finally putting in a screw for fixation. The operation is simple, the positioning is accurate, the operation time is shortened, and the pain of the patient is reduced.
2. The poking sheet on the peripheral wall of the adjusting nut can facilitate doctors to screw the adjusting nut, and labor is saved during adjustment.
3. When the bending radian of the steel needle guide cylinder is adjusted, the limiting block can prevent the steel needle guide cylinder from being excessively bent and exceeding the elastic deformation range, and further the steel needle guide cylinder is prevented from being incapable of resetting.
4. The rubber sleeve on hand can improve medical personnel's use and experience, and the antiskid burr on the rubber sleeve can increase the coefficient of friction between hand and the handle, avoids appearing the phenomenon of skidding.
Drawings
Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention.
Fig. 2 is a schematic structural diagram in embodiment 2 of the present invention.
As shown in the figure:
1. the steel needle guide cylinder, 2, handle, 3, passageway, 4, adjusting screw, 5, adjusting nut, 6, through-hole, 7, plectrum, 8, stopper, 9, rubber sleeve, 10, anti-skidding burr, 11, tensile screw, 12, adjust knob, 13, connecting seat, 14, screw.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Meanwhile, the terms "first", "second", and the like are only used for distinguishing the names of the components, and have no primary and secondary relationship, so that the present invention is not limited.
Example 1:
as shown in figure 1, the utility model discloses a steel needle guider with the following structure: comprises a steel needle guide cylinder 1, a handle 2 and a radian adjusting component; the steel needle guide cylinder 1 is arranged in an arc shape, a channel 3 for a steel needle to pass through is arranged in the steel needle guide cylinder 1, and the handle 2 is connected to the first end of the steel needle guide cylinder 1; the one end of radian adjusting part is connected with the second end of steel needle guide cylinder 1, and the other end is connected with handle 2, and the radian adjusting part is used for adjusting the distance between the second end of steel needle guide cylinder 1 and handle 2, and then adjusts the crooked radian of steel needle guide cylinder 1.
The radian adjusting component comprises an adjusting screw rod 4 and an adjusting nut 5; the handle 2 is provided with a through hole 6, one end of the adjusting screw rod 4 is hinged with the second end of the steel needle guide cylinder 1, and the other end of the adjusting screw rod passes through the through hole 6 and is in threaded connection with the adjusting nut 5. The poking sheet 7 extending in the radial direction is arranged on the peripheral wall of the adjusting nut 5, so that the adjusting nut 5 can be conveniently screwed by a doctor, and the adjusting is more labor-saving during adjustment.
Firstly, exposing a proximal joint surface of a fifth metatarsus to enable the guider to be tightly attached to the cuboid, confirming a needle inserting point after perspective, and then adjusting the distance between the second end of the steel needle guide cylinder 1 and the handle 2 by screwing the adjusting nut 5 so as to adjust the bending radian of the steel needle guide cylinder 1; the steel needle (guide pin) has certain elasticity, and can change self bending radian along with the steel needle guide cylinder 1 when passing through the steel needle guide cylinder 1, thereby enabling the steel needle to be driven into metatarsal bones at a proper angle, and the metatarsal bones are used as the guide pin, the marrow is expanded, and finally the screw is arranged for fixation. The operation is simple, the positioning is accurate, the operation time is shortened, and the pain of the patient is reduced.
Be equipped with stopper 8 on adjusting screw 4, adjusting nut 5 and stopper 8 are located the both sides of handle 2 respectively, and stopper 8's external diameter size is greater than the internal diameter size of through-hole 6. When adjusting the crooked radian of steel needle guide cylinder 1, stopper 8 can prevent that steel needle guide cylinder 1 from bending excessively, surpasss its elastic deformation scope, and then avoids steel needle guide cylinder 1 can't reset.
The needle guide cylinder 1 is made of metal, such as steel, and has good mechanical strength and certain elastic deformation.
The handle 2 is sleeved with a rubber sleeve 9, and anti-skid convex patterns 10 are uniformly distributed on the rubber sleeve 9. Rubber sleeve 9 on the handle 2 can improve medical personnel's use and experience, and the antiskid convex line 10 on the rubber sleeve 9 can increase the coefficient of friction between hand and the handle 2, avoids appearing the phenomenon of skidding.
Example 2:
as shown in fig. 2, substantially the same as embodiment 1 except that the arc degree adjusting assembly includes a tension screw 11 and an adjusting knob 12; a connecting seat 13 is hinged on the second end of the steel needle guide cylinder 1, a connecting hole is arranged on the connecting seat 13, and one end of the stretching screw rod 11 is rotatably connected in the connecting hole on the connecting seat 13; the handle 2 is provided with a screw hole 14 penetrating through the handle 2, and the free end of the stretching screw rod 11 penetrates through the screw hole 14 and is in threaded connection with the screw hole 14; the adjusting knob 12 is fixedly connected to the free end of the stretching screw rod 11 and used for driving the stretching screw rod 11 to rotate so as to adjust the bending radian of the steel needle guide cylinder 1.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are all covered by the protection scope of the present invention, therefore, the protection scope of the present invention should be subject to the protection scope of the claims.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120664877.6U CN214966533U (en) | 2021-03-31 | 2021-03-31 | Steel needle guider |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120664877.6U CN214966533U (en) | 2021-03-31 | 2021-03-31 | Steel needle guider |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214966533U true CN214966533U (en) | 2021-12-03 |
Family
ID=79095834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120664877.6U Active CN214966533U (en) | 2021-03-31 | 2021-03-31 | Steel needle guider |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214966533U (en) |
-
2021
- 2021-03-31 CN CN202120664877.6U patent/CN214966533U/en active Active
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| GR01 | Patent grant |