CN113040893B - Guide pin adjusting guider for femoral neck - Google Patents
Guide pin adjusting guider for femoral neck Download PDFInfo
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- CN113040893B CN113040893B CN202110141701.7A CN202110141701A CN113040893B CN 113040893 B CN113040893 B CN 113040893B CN 202110141701 A CN202110141701 A CN 202110141701A CN 113040893 B CN113040893 B CN 113040893B
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- supporting seat
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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
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
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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
- A61B17/74—Devices for the head or neck or trochanter of the femur
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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)
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- Prostheses (AREA)
- Surgical Instruments (AREA)
Abstract
The invention provides a femoral neck guide pin adjusting guider, comprising: the guide hole penetrates through the front side surface and the rear side surface of the first supporting seat, and the screw hole and the sliding hole penetrate through the lower side surface and the upper side surface of the first supporting seat; the upper side surface of the second supporting seat is a plane, and the plane is parallel to the axis of the guide hole; the screw rod is in threaded connection with the screw hole, and one end of the screw rod is embedded in the lower side surface of the second supporting seat and is in rotary connection with the second supporting seat; the support column is connected with the sliding hole in a sliding mode and provided with scales, and one end of the support column is fixedly connected with the lower side face of the second supporting seat; the angle scale is fixedly connected with the upper side face of the second supporting seat; one end of the guide pipe is hinged with the upper side surface of the second supporting seat; the guide hole and the guide tube can be penetrated by the Kirschner wire in a sliding way. The invention has the advantages that: firstly, a kirschner wire is driven into a guide hole of a first support seat, the distance between the first support seat and a second support seat is adjusted through a screw rod, then a guide pipe is adjusted to a required angle, and another kirschner wire is driven into the guide pipe, so that the operation is convenient.
Description
Technical Field
The invention relates to a medical surgical instrument, in particular to a femoral neck guide pin adjusting guide.
Background
The neck of femur is located under pelvis, and has the function of supporting the upper part of body through the cooperation of femoral head and acetabulum. Femoral neck fracture refers to the fracture from the femoral head down to the base of the femoral neck. The incidence rate of female is slightly higher than that of male, and the femoral neck fracture is often occurred in the elderly due to different degrees of osteoporosis in most of the elderly.
The kirschner wire is a commonly used internal fixation material for orthopedics, is used for fixing short fracture or avulsion fracture and other fracture with low stress, and is also used for temporarily fixing fracture blocks in orthopedic surgery. In the prior art, when a fixing operation is performed on femoral neck fracture, a femoral neck guide pin, namely a kirschner wire, needs to be driven firstly, and then hollow nail fixing operation is performed. When more than two guide pins need to be driven, the distance between the guide pins and the driving angle of the guide pins are difficult to adjust.
Disclosure of Invention
The invention aims to provide a femoral neck guide pin adjusting guide, which can conveniently adjust the driving angle and the driving distance of a guide pin.
The invention is realized by the following steps: a femoral neck guide pin adjustment guide, comprising:
the first support seat is provided with a guide hole, a screw hole and a sliding hole, the guide hole penetrates through the front side surface and the rear side surface of the first support seat, and the screw hole and the sliding hole both penetrate through the lower side surface and the upper side surface of the first support seat;
The second supporting seat is positioned above the first supporting seat, the upper side surface of the second supporting seat is a plane, and the plane is parallel to the axis of the guide hole;
the screw rod is in threaded connection with the screw hole, and one end of the screw rod is embedded in the lower side surface of the second supporting seat and is in rotating connection with the second supporting seat;
the support column is connected with the sliding hole in a sliding mode and provided with scales, and one end of the support column is fixedly connected with the lower side face of the second supporting seat;
the angle scale is fixedly connected with the upper side face of the second supporting seat;
one end of the guide pipe is hinged with the upper side face of the second supporting seat, and the guide pipe is positioned above the angle scale;
the guide hole and the guide tube can be penetrated by a kirschner wire in a sliding way.
Further, still include:
the locking block is fixedly connected with the other end of the guide pipe and provided with a first positioning hole;
a second positioning hole is formed in the front side face of the second supporting seat, and the second positioning holes are uniformly arranged at intervals and are all located above the guide hole;
and the pin is used for penetrating through the first positioning hole and the second positioning hole.
Furthermore, the locking block is connected with the guide pipe in a sliding mode, the locking block is fixedly connected with the pin, and the pin is used for being inserted into the second positioning hole.
Furthermore, a hollow-out opening is formed in the guide pipe, the hollow-out opening is located above the angle scale, and the pipe body of the guide pipe is further provided with an indicating line which is located between two ends of the hollow-out opening.
Further, still include:
the top end of the locking seat is provided with positioning grooves, the positioning grooves are uniformly arranged at intervals, and the bottom end of the locking seat is fixedly connected with the upper side face of the second supporting seat;
the other end of the guide pipe can be clamped in the positioning groove.
Further, the screw rod fixing device further comprises a knob, and the knob is fixedly connected with the other end of the screw rod.
Further, still include the handle, two the handle respectively with the left and right sides fixed connection of first supporting seat.
Further, the handle is a straight rod, one end of the straight rod is fixedly connected with the first supporting seat, an arc-shaped convex block is fixedly arranged on the upper side face of the straight rod, a horizontal convex block is fixedly arranged on the lower side face of the straight rod, the arc-shaped convex block is close to the first supporting seat, and the horizontal convex block is far away from the first supporting seat.
The invention has the advantages that: 1. firstly, a Kirschner wire is driven into a guide hole of a first support seat to serve as an initial guide pin, the distance between the first support seat and a second support seat is adjusted through a screw, then a guide pipe is adjusted to a required angle, and another Kirschner wire is driven into the guide pipe to serve as a new guide pin, so that the operation is convenient. 2. The other end of the guide pipe is temporarily fixed, unnecessary shaking caused by injection is avoided, and injection precision is improved. 3. The arc-shaped convex block is used for matching with a thumb, the horizontal convex block is used for matching with other fingers, the human engineering principle is met, a hand of a person can better hold and operate the handle, and the operation efficiency is improved.
Drawings
The invention will be further described with reference to the following examples with reference to the accompanying drawings.
Fig. 1 is a schematic structural view of a femoral neck guide pin adjustment guide of the present invention.
Fig. 2 is a schematic top view of the first support base of fig. 1.
FIG. 3 is a schematic view of the connection between the screw and the second support base according to the present invention.
Fig. 4 is a top view of the second support seat shown in fig. 1.
FIG. 5 is a schematic view of the pin passing through the first and second positioning holes of the present invention.
FIG. 6 is a schematic view showing the guide tube being placed in the positioning groove according to the present invention.
Fig. 7 is a schematic top view of fig. 6.
Figure 8 is a schematic view of the pin and lock block of the present invention in secure connection.
FIG. 9 is a schematic view of the triangular arrangement of the screw holes and the slide holes of the present invention.
Reference numerals: a first support base 1; a guide hole 11; a screw hole 12; a slide hole 13; a second support base 2; a second positioning hole 21; a screw 3; a pillar 4; a knob 5; an angle scale 6; a guide tube 7; hinge point 71; a hollowed-out opening 72; an indicator line 73; a stopper 74; a locking block 8; a first positioning hole 81; a pin 9; a handle 10; an arc-shaped bump 101; a horizontal bump 102; a locking seat 20; a positioning groove 201.
Detailed Description
The embodiment of the invention provides a femoral neck guide pin adjusting guide, solves the technical problem that the distance between guide pins and the driving angle of the guide pins are difficult to adjust in the prior art, and achieves the technical effect of conveniently adjusting the driving angle and the driving distance.
In order to solve the above problems, the technical solution in the embodiments of the present invention has the following general idea: the setting is used for squeezing into the guiding hole of initial guide pin earlier, according to the position of initial guide pin, through the distance between first supporting seat of screw rod adjustment and the second supporting seat, readjusts the position of stand pipe on the angle scale again, makes the stand pipe reach required angle after, squeezes into new guide pin along the stand pipe again, reaches required effect of injecing.
For better understanding of the above technical solutions, the following detailed descriptions will be provided in conjunction with the drawings and the detailed description of the embodiments.
Referring to fig. 1 to 5, a first embodiment of the femoral neck guide pin adjustment guide of the present invention is shown.
The invention comprises the following steps: the support device comprises a first support seat 1, a first support seat and a second support seat, wherein the first support seat 1 is provided with a guide hole 11, a screw hole 12 and a sliding hole 13, the guide hole 11 penetrates through the front side surface and the rear side surface of the first support seat 1, and the screw hole 12 and the sliding hole 13 both penetrate through the lower side surface and the upper side surface of the first support seat 1; the two sliding holes 13 are respectively positioned at two sides of the screw hole 12; the second supporting seat 2 is positioned above the first supporting seat 1, the upper side surface of the second supporting seat 2 is a plane, and the plane is parallel to the axis of the guide hole 11; the guide hole 11 is located at the middle position of the first support base 1.
The screw rod 3 is in threaded connection with the screw hole 12, and one end of the screw rod 3 is embedded in the lower side surface of the second supporting seat 2 and is in rotary connection with the lower side surface; a pillar 4 slidably connected to the slide hole 13, wherein the pillar 4 has a scale, and the unit of the scale is preferably 1mm, and one end of the pillar 4 is fixedly connected to the lower side surface of the second support seat 2; the screw rod mechanism further comprises a knob 5, and the knob 5 is fixedly connected with the other end of the screw rod 3. The screw rod 3 can be rotated by rotating the knob 5 by an operator, when the screw rod 3 rotates in the forward direction, the screw rod 3 moves upwards, the distance between the first supporting seat 1 and the second supporting seat 2 is increased, and when the screw rod 3 rotates in the reverse direction, the screw rod 3 moves downwards, and the distance between the first supporting seat 1 and the second supporting seat 2 is reduced; the post 4 also slides up and down, and the adjusted distance is determined by looking at the scale on the post 4. The support 4 can have an auxiliary stabilizing effect.
The angle scale 6 is fixedly connected with the upper side face of the second supporting seat 2; the scale on the angle scale 6 is used for determining the position of the guide tube 7, and the scale unit of the angle scale 6 is preferably 1 degree. One end of the guide pipe 7 is hinged to the upper side face of the supporting seat, and the guide pipe 7 is located above the angle scale 6. The operator manipulates the guide tube 7 to rotate angularly about the hinge point 71 over the angular scale 6 with the axis of the guide tube 7 parallel to the plane. When the guide tube 7 is in the middle position of the angle plate 6, the guide tube 7 is parallel to the guide hole 11. The guide hole 11 and the guide tube 7 can be penetrated by a kirschner wire in a sliding way.
A hollow-out opening 72 is formed in the guide pipe 7, the hollow-out opening 72 is located above the angle scale 6, the pipe body of the guide pipe 7 is further provided with an indication line 73, and the indication line 73 is located in the middle of two ends of the hollow-out opening 72. The scales on the angle scale 6 can be seen through the hollow 72, and when the guide pipe needs to rotate to a specified angle, the indication line 73 is aligned with the scales on the angle scale 6, so that the operation is more accurate.
When a fixing operation is performed on femoral neck fracture, the guide hole 11 of the first support seat 1 is preliminarily aligned with the femoral neck, a kirschner wire is driven into the guide hole 11 on the front side surface of the first support seat 1 to serve as an initial guide pin, and the position of the first support seat 1 is determined at the moment; then adjusting the screw 3, adjusting the second supporting seat 2 to the required height, then adjusting the guide tube 7 to the required angle, and then driving another kirschner wire into the guide tube 7 to be used as a new guide pin, so that the operation is convenient; the initial guide pin is taken out, and the guide tube 7 is withdrawn from the new guide pin. According to the actual requirement, the new guide pin can be inserted into the guide hole 11 again, and after the positions of the first support seat 1 and the second support seat 2 are determined again, another new guide pin can be driven into the guide tube 7 again.
Further comprising: the locking block 8 is fixedly connected with the other end of the guide pipe 7, and the locking block 8 is provided with a first positioning hole 81; a second positioning hole 21 is formed in the front side surface of the second support seat 2, and a plurality of second positioning holes 21 are uniformly arranged at intervals and are all positioned above the guide hole 11; and a pin 9 for passing through the first positioning hole 81 and the second positioning hole 21. The positions of the second positioning holes 21 correspond to the scales of the angle scale 6, when the position of the guide tube 7 is determined, the first positioning hole 81 of the locking block 8 is aligned with one of the second positioning holes 21, and then the pin 9 penetrates through the first positioning hole 81 and the second positioning hole 21, so that the purpose of temporarily locking the position is achieved, unnecessary shaking of the guide tube 7 in the needle threading process is avoided, and the needle punching precision is improved.
The support device further comprises handles 10, and the two handles 10 are fixedly connected with the left side and the right side of the first support seat 1 respectively. The handle 10 is the straight-bar, the one end of straight-bar with 1 fixed connection of first supporting seat, the side of going up of straight-bar has set firmly arc lug 101, the downside of straight-bar has set firmly horizontal lug 102, arc lug 101 is close to first supporting seat 1, horizontal lug 102 keeps away from first supporting seat 1. The arc-shaped projection 101 is used for matching with a thumb, and the horizontal projection 102 is used for matching with other fingers, so that the handle 10 is better held and operated by the hand of a person according to the principle of ergonomics, and the operation efficiency is improved. After the initial guide pin is driven into the guide hole 11 of the first support seat 1, since the guide pin and the guide hole 11 are in clearance fit, the surgical personnel can hold the handle 10, so that the first support seat 1 can rotate around the initial guide pin by a certain angle, and the position of the new guide pin can be better adjusted.
Referring to fig. 6 and 7, a second embodiment of the femoral neck guide pin adjustment guide of the present invention is shown.
The invention also includes: the top end of the locking seat 20 is provided with a positioning groove 201, a plurality of positioning grooves 201 are uniformly arranged at intervals, and the bottom end of the locking seat 20 is fixedly connected with the upper side surface of the second supporting seat 2; the other end of the guide tube 7 can be clamped in the positioning groove 201. The positions of the positioning grooves 201 correspond to the scales of the angle scale 6, and after the position of the guide tube 7 is determined, the guide tube 7 is placed in one positioning groove 201, so that the purpose of temporarily locking the position is achieved. The guide tube 7 is made of metal and has certain elastic deformation, so when the angle of the guide tube 7 is adjusted, the other end of the guide tube 7 is slightly lifted and moved left and right, the position of the other end of the guide tube 7 can be changed, and after the required angle is reached, the other end of the guide tube 7 is placed into the determined positioning groove 201. For other parts, reference is made to the first embodiment of the present invention.
Referring to fig. 8, the third embodiment of the femoral neck guide pin adjustment guide of the present invention.
The locking block 8 is connected with the guide pipe 7 in a sliding mode, the locking block 8 is fixedly connected with the pin 9, and the pin 9 is used for being inserted into the second positioning hole 21. And a stop block 74 is fixedly arranged at the other end of the guide pipe 7, and the stop block 74 prevents the locking block 8 from sliding out of the guide pipe 7. The positions of the second positioning holes 21 correspond to the scales of the angle scale 6, after the position of the guide tube 7 is determined, the pin 9 is aligned with one of the second positioning holes 21, then the locking block 8 is slid, and the pin 9 is inserted into the second positioning hole 21, so that the purpose of temporarily locking the position is achieved, unnecessary shaking of the guide tube 7 in the needle threading process is avoided, and the needle punching precision is improved. For other parts, reference is made to the first embodiment of the present invention.
Referring to fig. 9, the femoral neck guide pin adjustment guide of the present invention is in accordance with a fourth embodiment.
A screw hole 12 and two sliding holes 13 form a triangular distribution on the first support seat 1, so that a triangular distribution is formed between the screw rod 3 and the two upright posts 4, and the up-and-down movement of the second support seat 2 is more stable. For other parts, reference is made to the first embodiment of the present invention.
Although specific embodiments of the invention have been described above, it will be understood by those skilled in the art that the specific embodiments described are illustrative only and are not limiting upon the scope of the invention, and that equivalent modifications and variations can be made by those skilled in the art without departing from the spirit of the invention, which is to be limited only by the appended claims.
Claims (4)
1. A femoral neck guide pin adjustment guide, comprising:
the first support seat is provided with a guide hole, a screw hole and a sliding hole, the guide hole penetrates through the front side surface and the rear side surface of the first support seat, and the screw hole and the sliding hole both penetrate through the lower side surface and the upper side surface of the first support seat;
the second supporting seat is positioned above the first supporting seat, the upper side surface of the second supporting seat is a plane, and the plane is parallel to the axis of the guide hole;
The screw rod is in threaded connection with the screw hole, and one end of the screw rod is embedded in the lower side surface of the second supporting seat and is in rotating connection with the second supporting seat;
the support column is connected with the sliding hole in a sliding mode and provided with scales, and one end of the support column is fixedly connected with the lower side face of the second supporting seat;
the angle scale is fixedly connected with the upper side face of the second supporting seat;
one end of the guide pipe is hinged with the upper side face of the second supporting seat, the guide pipe is located above the angle scale, a stop block is fixedly arranged at the other end of the guide pipe, and the guide pipe is made of metal;
the guide hole and the guide tube can be penetrated by a Kirschner wire in a sliding way;
the guide pipe is provided with a hollowed-out opening, the hollowed-out opening is positioned above the angle scale, the pipe body of the guide pipe is also provided with an indicating line, and the indicating line is positioned between the two ends of the hollowed-out opening;
the top end of the locking seat is provided with positioning grooves, the positioning grooves are uniformly arranged at intervals, the positions of the positioning grooves correspond to the scales of the angle scale, and the bottom end of the locking seat is fixedly connected with the upper side face of the second supporting seat;
the other end of the guide pipe can be clamped in the positioning groove;
The locking block is connected with the guide pipe in a sliding manner;
a second positioning hole is formed in the front side face of the second supporting seat, and the second positioning holes are uniformly arranged at intervals and are all located above the guide hole;
and the pin is fixedly connected with the locking block and is used for being inserted into the second positioning hole.
2. The femoral neck guide pin adjustment guide according to claim 1, further comprising a knob fixedly connected to the other end of the screw.
3. The femoral neck guide pin adjustment guide according to claim 1, further comprising handles, wherein the two handles are respectively fixedly connected to the left and right sides of the first supporting seat.
4. The femoral neck guide pin adjustment guide according to claim 3, wherein the handle is a straight rod, one end of the straight rod is fixedly connected to the first supporting seat, an arc-shaped protrusion is fixedly disposed on an upper side surface of the straight rod, a horizontal protrusion is fixedly disposed on a lower side surface of the straight rod, the arc-shaped protrusion is close to the first supporting seat, and the horizontal protrusion is far away from the first supporting seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110141701.7A CN113040893B (en) | 2021-02-02 | 2021-02-02 | Guide pin adjusting guider for femoral neck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110141701.7A CN113040893B (en) | 2021-02-02 | 2021-02-02 | Guide pin adjusting guider for femoral neck |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113040893A CN113040893A (en) | 2021-06-29 |
| CN113040893B true CN113040893B (en) | 2022-09-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110141701.7A Active CN113040893B (en) | 2021-02-02 | 2021-02-02 | Guide pin adjusting guider for femoral neck |
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| CN (1) | CN113040893B (en) |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2693186Y (en) * | 2004-04-28 | 2005-04-20 | 刘晓冬 | Inner fixation stereo guider for collum femoris fraction |
| CN202146359U (en) * | 2011-06-10 | 2012-02-22 | 陈立军 | Multifunctional dynamic hip screw guider |
| CN202537667U (en) * | 2012-03-12 | 2012-11-21 | 廖志峰 | Three-dimensional guide sighting device for kirschner wires in femoral neck |
| CN203829030U (en) * | 2014-05-05 | 2014-09-17 | 沈迎春 | Femoral neck hollow rivet guider |
| CN204394641U (en) * | 2015-01-07 | 2015-06-17 | 潍坊医学院 | A kind of epidural anaesthetic puncture needle |
| CN204683723U (en) * | 2015-05-11 | 2015-10-07 | 王炳武 | Intervertebral foramina puncture navigation arrangement |
| CN105748143B (en) * | 2016-04-29 | 2018-05-25 | 谢小波 | Neck of femur guider |
| CN206675592U (en) * | 2016-12-21 | 2017-11-28 | 倪凤民 | A kind of neck of femur puts nail servicing unit |
| CN207545195U (en) * | 2017-03-29 | 2018-06-29 | 刘斌 | A kind of pedicle of vertebral arch puts nail guider |
| CN107157560B (en) * | 2017-06-09 | 2019-06-18 | 南阳市中心医院 | A kind of fixed device of thoracic surgery fracture of rib normotopia |
| CN107961069B (en) * | 2017-12-19 | 2023-06-06 | 暨南大学 | Guide is put into to hollow screw of femur neck fracture |
| CN209661774U (en) * | 2018-09-18 | 2019-11-22 | 牛云飞 | The adjustable minimally invasive fixed guider of fracture |
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2021
- 2021-02-02 CN CN202110141701.7A patent/CN113040893B/en active Active
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| CN113040893A (en) | 2021-06-29 |
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