CN110141334B - Stepless regulation needle threading clamp with guiding function - Google Patents
Stepless regulation needle threading clamp with guiding function Download PDFInfo
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- CN110141334B CN110141334B CN201910296795.8A CN201910296795A CN110141334B CN 110141334 B CN110141334 B CN 110141334B CN 201910296795 A CN201910296795 A CN 201910296795A CN 110141334 B CN110141334 B CN 110141334B
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- steel needle
- sliding ring
- sleeve
- fastening nut
- screw rod
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 77
- 239000010959 steel Substances 0.000 claims abstract description 77
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 210000000988 bone and bone Anatomy 0.000 description 7
- 238000009434 installation Methods 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 208000031074 Reinjury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
Classifications
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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
- A61B17/60—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)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Biomedical Technology (AREA)
- Engineering & Computer Science (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
The invention discloses a stepless regulation needle threading clamp with a guiding function, which comprises a steel needle upper and lower stepless regulation device, a steel needle guiding locking device and a fixed nut, wherein the steel needle upper and lower stepless regulation device comprises a screw rod, an upper fastening nut, a lower fastening nut and a sliding ring, and the upper end and the lower end of the sliding ring are fixed in the middle of the regulation end of the screw rod through the upper fastening nut and the lower fastening nut; the steel needle guiding locking device comprises a steel needle sleeve and a locking bolt, wherein the steel needle sleeve penetrates through a sleeve connecting hole on the sliding ring and a linear groove on the adjusting end of the screw rod, and the locking bolt penetrates through a bolt hole on the sliding ring and a locking hole on the side surface of the steel needle sleeve to tightly prop the steel needle in the steel needle sleeve; the invention can realize fine adjustment and fixation, provide needle threading guidance, not only improve the accuracy and safety of clinical fracture reduction, but also lighten the operation intensity of clinicians and greatly improve the success rate of operation.
Description
Technical Field
The invention relates to the field of bone rehabilitation and correction, in particular to the field of external fixation of bone rehabilitation, and more particularly relates to a stepless regulation needle threading clamp with a guiding function.
Background
In the surgical bone surgery treatment, the fixing device is indispensable, the traditional fixing mode generally adopts the steel plate internal fixation, and the external fixing treatment mode with smaller wound is also adopted. The common external fixing device is mainly an Ilizarov external fixer and a Taylor framework; the Ilizarov technique uses a multi-plane fine Kirschner wire to penetrate through limbs and bone tissue and is connected with an annular fixer; taylor's improvement ILizarov external fixation system, connects six telescoping elongate rods to proximal and distal rings at angles and is free to rotate at the connection point, with one ring changing position relative to the other ring as long as the length of one of the elongate rods is adjusted. The length of the extension rod relative to the deformity parameter can be calculated by using computer program software, and the Taylor space frame can be constructed in advance by imitating any deformity to treat and correct various simple or complex fracture and deformity. The taylor skeleton is formed by:
1. The upper and lower rings may also be referred to as a proximal ring and a distal ring.
2. Six extension bars with adjustable length, and the length of each extension bar can be directly read.
3. The extension rod is connected with the ring.
4. Steel needles and needle clips connecting the fixation ring with the bone segments.
The procedure is typically performed by securing a steel needle in place near the fracture site, and securing the steel needle to an Ilizarov external fixator or taylor skeleton via a needle clip to effect fixation and adjustment of the bone. The Ilizarov external fixator and the Taylor frame are fixed with needle threading clamps on a certain hole site on the upper and lower fixing rings so as to achieve the mutual fixed connection of the fracture of the human body and the upper and lower rings of the external fixing frame. But the perforation position is not symmetrical in actual operation, and the hole site of traditional anchor clamps does not necessarily have to perfectly match the needle position of wearing, and moreover, when doctor's operation is with steel needle into patient's skeleton, because the difference of technical level, the condition that can appear the steel needle beat needs to carry out the secondary and inserts, can cause secondary and even many times injury for the operation degree of difficulty is big, the threshold is high, and very little error will bring very big misery for the patient moreover.
Disclosure of Invention
The invention aims to solve the problems that the traditional clamp cannot be perfectly matched with the needle threading position, so that secondary nailing is needed when a doctor is in operation to screw a steel needle into the bone of a patient, secondary and even repeated injuries are caused, the operation difficulty is high, the threshold is high, and great pain is brought to the patient, and provides the stepless regulation needle threading clamp with the guiding function, which can realize fine adjustment and fixation, needle threading guiding, improve the accuracy and safety of clinical fracture reduction, lighten the operation intensity of a clinician and greatly improve the success rate of the operation.
The invention realizes the above purpose through the following technical scheme: the stepless regulation needle threading clamp with the guiding function comprises a steel needle upper and lower stepless regulation device, a steel needle guiding locking device and a fixing nut, wherein the steel needle upper and lower stepless regulation device comprises a screw rod, an upper fastening nut, a lower fastening nut and a sliding ring, the screw rod comprises a regulation end and a fixed end, the regulation end is fixed above the fixed end, threads are distributed on the regulation end, two penetrating straight-line grooves parallel to the axis of the screw rod are formed in the regulation end at intervals of 90 degrees, the sliding ring is sleeved on the regulation end of the screw rod, internal threads of the upper fastening nut and the lower fastening nut are connected with threads on the regulation end of the screw rod in a matched manner, and the upper end and the lower end of the sliding ring are fixed in the middle of the regulation end of the screw rod through the upper fastening nut and the lower fastening nut; the inner diameter of the sliding ring is in clearance fit with the adjusting end of the screw rod, a bolt hole and a sleeve connecting hole penetrating the whole sliding ring are formed in the sliding ring, and the bolt hole and the sleeve connecting hole are arranged at an interval of 90 degrees; the steel needle guiding locking device comprises a steel needle sleeve and a locking bolt, wherein a bulge is arranged at one end of the steel needle sleeve, the steel needle sleeve penetrates through a sleeve connecting hole on the sliding ring and a linear groove on the adjusting end of the screw rod, a locking hole is formed in the side face of the steel needle sleeve, and the locking bolt penetrates through a bolt hole on the sliding ring and the locking hole on the side face of the steel needle sleeve to tightly prop the steel needle in the steel needle sleeve; the fixed end of the screw rod is fixed on an external Ilizarov external fixator or a Taylor framework through a fixed nut.
Further, the outer side surface of the steel needle sleeve is in interference fit with a sleeve connecting hole on the sliding ring, and the outer side surface of the steel needle sleeve is in clearance fit with a linear groove on the adjusting end of the screw rod.
Further, one end of the steel needle sleeve is provided with a boss, and the outer diameter of the boss is larger than the diameter of the sleeve connecting hole on the sliding ring.
Further, the sliding ring realizes stepless adjustment of the up-down position through up-down movement of the upper fastening nut and the lower fastening nut.
Further, the width of the straight line groove on the screw adjusting end is slightly larger than the outer diameter of the steel needle sleeve.
Further, screw threads matched with the locking bolt are arranged on the bolt hole on the sliding ring.
The invention has the beneficial effects that: the invention can realize fine adjustment and fixation, provide needle threading guidance, not only improve the accuracy and safety of clinical fracture reduction, but also lighten the operation intensity of clinicians and greatly improve the success rate of operation.
Drawings
FIG. 1 is a schematic view of the overall structure of the stepless adjusting needle threading clamp with guiding function when the steel needle is taken.
Fig. 2 is a schematic view of the overall structure of the stepless adjusting needle threading clamp with guiding function without steel needle.
FIG. 3 is a schematic view of the structure of the screw of the present invention.
Fig. 4 is a schematic structural view of the sliding ring of the present invention.
Fig. 5 is a schematic structural view of the steel needle sleeve of the present invention.
In the figure, a 1-sleeve connecting hole, a 2-steel needle, a 3-bolt hole, a 4-locking hole, a 5-bulge, a 6-linear groove, a 7-steel needle up-down stepless adjusting device, an 8-steel needle guiding locking device, a 9-fixing nut, a 10-lower fastening nut, a 12-steel needle sleeve, a 13-locking bolt, a 14-screw rod, a 14-1-adjusting end, a 14-2-fixing end, a 15-upper fastening nut and a 16-sliding ring.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
As shown in fig. 1-5, the stepless regulation needle threading clamp with guiding function comprises a steel needle upper and lower stepless regulation device 7, a steel needle guiding locking device 8 and a fixing nut 9, wherein the steel needle upper and lower stepless regulation device 7 comprises a screw 14, an upper fastening nut 15, a lower fastening nut 10 and a sliding ring 16, the screw 14 comprises a regulation end 14-1 and a fixed end 14-2, the regulation end 14-1 is fixed above the fixed end 14-2, threads are distributed on the regulation end 14-1, two penetrating straight grooves 6 parallel to the axial lead of the screw 14 are formed on the regulation end 14-1 at intervals of 90 degrees, the sliding ring 16 is sleeved on the regulation end 14-1 of the screw 14, the internal threads of the upper fastening nut 15 and the lower fastening nut 10 are in matched connection with the threads on the regulation end 14-1 of the screw 14, the upper and lower ends of the sliding ring 16 are fixed in the middle of the regulation end 14-1 of the screw 14 through the upper fastening nut 15 and the lower fastening nut 10, and the sliding ring 16 is realized by means of the upper and lower fastening nuts 10 moving up and down. The inner diameter of the sliding ring 16 is in clearance fit with the adjusting end 14-1 of the screw rod 14, the sliding ring 16 is provided with a bolt hole 3 and a sleeve connecting hole 1 penetrating through the whole sliding ring 16, and the bolt hole 3 and the sleeve connecting hole are arranged at an interval of 90 degrees; the steel needle guiding locking device 8 comprises a steel needle sleeve 12 and a locking bolt 13, a boss 5 is arranged at one end of the steel needle sleeve 12, the steel needle sleeve 12 penetrates through a sleeve connecting hole 1 on a sliding ring 16 and a linear groove 6 on an adjusting end 14-1 of a screw 14, a locking hole 4 is formed in the side face of the steel needle sleeve 12, the locking bolt 13 penetrates through a bolt hole 3 on the sliding ring 16 and the locking hole 4 on the side face of the steel needle sleeve 12, the steel needle 2 is tightly propped in the steel needle sleeve 12, and threads matched with the locking bolt 13 are arranged on the bolt hole 3 on the sliding ring 16. The fixed end 14-2 of the screw 14 is fixed on an external Ilizarov external fixator or a Taylor skeleton by a fixing nut 9.
The outer side of the steel needle sleeve 12 is in interference fit with the sleeve connecting hole 1 on the sliding ring 16, and the outer side of the steel needle sleeve 12 is in clearance fit with a linear groove 6 on the adjusting end 14-1 of the screw 14. The width of the linear groove 6 on the adjusting end 14-1 of the screw 14 is slightly larger than the outer diameter of the steel needle sleeve 12.
One end of the steel needle sleeve 12 is provided with a boss, and the outer diameter of the boss is larger than the diameter of the sleeve connecting hole 1 on the sliding ring 16.
After a doctor determines the installation position of the steel needle 2, the installation position of the clamp is determined through calculation and analysis, the angle is adjusted, the clamp is installed on a Taylor frame or other external fixing apparatuses through the fixing nut 9, the upper and lower positions of the steel needle 2 are adjusted through the steel needle upper and lower stepless adjusting device 9, the steel needle 2 is screwed and fixed through the upper fastening nut 15 and the lower fastening nut 10 after the position is determined, the steel needle 2 penetrates into the proper position of a fracture of a patient through the steel needle sleeve 12 to be installed, the steel needle sleeve 12 provides the guiding function of steel needle installation, the front and rear positions are adjusted through the steel needle guiding locking device 7, and the locking bolt 13 is screwed and fixed after the position is determined.
The above embodiments are only preferred embodiments of the present invention, and are not limiting to the technical solutions of the present invention, and any technical solution that can be implemented on the basis of the above embodiments without inventive effort should be considered as falling within the scope of protection of the patent claims of the present invention.
Claims (4)
1. The utility model provides a take stepless regulation needle threading anchor clamps of guiding function which characterized in that: the steel needle vertical stepless adjusting device (7), the steel needle guiding locking device (8) and the fixing nut (9) are included, the steel needle vertical stepless adjusting device (7) comprises a screw rod (14), an upper fastening nut (15), a lower fastening nut (10) and a sliding ring (16), the screw rod (14) comprises an adjusting end (14-1) and a fixing end (14-2), the adjusting end (14-1) is fixed above the fixing end (14-2), threads are distributed on the adjusting end (14-1), two penetrating straight grooves (6) parallel to the axial lead of the screw rod (14) are formed in the adjusting end (14-1) at intervals of 90 degrees, the sliding ring (16) is sleeved on the adjusting end (14-1) of the screw rod (14), the inner threads of the upper fastening nut (15) and the lower fastening nut (10) are connected with the threads on the adjusting end (14-1) of the screw rod (14), and the upper end and the lower end of the sliding ring (16) are fixed at the middle part (14-1) of the adjusting end (14) of the screw rod (14) through the upper fastening nut (15) and the lower fastening nut (10); the inner diameter of the sliding ring (16) is in clearance fit with the adjusting end (14-1) of the screw (14), the sliding ring (16) is provided with a bolt hole (3) and a sleeve connecting hole (1) penetrating through the whole sliding ring (16), and the bolt hole (3) and the sleeve connecting hole are arranged at an interval of 90 degrees; the steel needle guiding locking device (8) comprises a steel needle sleeve (12) and a locking bolt (13), wherein a bulge (5) is arranged at one end of the steel needle sleeve (12), the steel needle sleeve (12) penetrates through a sleeve connecting hole (1) on a sliding ring (16) and a linear groove (6) on an adjusting end (14-1) of a screw rod (14), a locking hole (4) is formed in the side face of the steel needle sleeve (12), the locking bolt (13) penetrates through a bolt hole (3) on the sliding ring (16) and the locking hole (4) in the side face of the steel needle sleeve (12), and the steel needle (2) is tightly propped in the steel needle sleeve (12); the fixed end (14-2) of the screw (14) is fixed on an external Ilizarov external fixator or a Taylor framework through a fixed nut (9);
The outer side surface of the steel needle sleeve (12) is in interference fit with a sleeve connecting hole (1) on the sliding ring (16), and the outer side surface of the steel needle sleeve (12) is in clearance fit with a linear groove (6) on the adjusting end (14-1) of the screw (14);
one end of the steel needle sleeve (12) is provided with a boss, and the outer diameter of the boss is larger than the diameter of the sleeve connecting hole (1) on the sliding ring (16).
2. A continuously adjustable needle threading jig with guiding function as claimed in claim 1 wherein: the sliding ring (16) realizes stepless adjustment of the up-down position through up-down movement of the upper fastening nut (15) and the lower fastening nut (10).
3. A continuously adjustable needle threading jig with guiding function as claimed in claim 1 wherein: the width of the straight groove (6) on the adjusting end (14-1) of the screw (14) is slightly larger than the outer diameter of the steel needle sleeve (12).
4. A continuously adjustable needle threading jig with guiding function as claimed in claim 1 wherein: screw threads matched with the locking bolt (13) are arranged on the bolt hole (3) on the sliding ring (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910296795.8A CN110141334B (en) | 2019-04-14 | 2019-04-14 | Stepless regulation needle threading clamp with guiding function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910296795.8A CN110141334B (en) | 2019-04-14 | 2019-04-14 | Stepless regulation needle threading clamp with guiding function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110141334A CN110141334A (en) | 2019-08-20 |
| CN110141334B true CN110141334B (en) | 2024-06-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910296795.8A Active CN110141334B (en) | 2019-04-14 | 2019-04-14 | Stepless regulation needle threading clamp with guiding function |
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| CN (1) | CN110141334B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110960312B (en) * | 2019-12-06 | 2023-04-25 | 陈聚伍 | Kirschner wire deviation correcting system and universal nut adjusting assembly for Kirschner wire deviation correcting |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209996451U (en) * | 2019-04-14 | 2020-01-31 | 浙江工业大学 | Stepless adjustment threading clamp with guiding function |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100595479B1 (en) * | 2001-12-28 | 2006-07-03 | 김정재 | External fixation device for fractures |
| US20070270802A1 (en) * | 2006-05-05 | 2007-11-22 | Kodkani Pranjal S | Device and a method for joining, fixing and aligning broken bones and dislocated joints of vertebrates |
| CN100518680C (en) * | 2007-03-21 | 2009-07-29 | 中国人民解放军第三军医大学第一附属医院 | Bone external fixer |
| CN202526285U (en) * | 2012-04-16 | 2012-11-14 | 毛建勋 | Double-layer unilateral skeletal external fixator |
| CN104814779B (en) * | 2015-05-07 | 2017-01-18 | 浙江工业大学 | External fixation device needle threading fixture capable of being adjusted in multiple directions and at multiple angles |
| CN208017569U (en) * | 2018-01-11 | 2018-10-30 | 王志军 | Fracture of tibial intercondylar eminence orients puncture guider |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209996451U (en) * | 2019-04-14 | 2020-01-31 | 浙江工业大学 | Stepless adjustment threading clamp with guiding function |
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| CN110141334A (en) | 2019-08-20 |
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