CN113967063B - An implantation tool for patients with femoral neck fractures - Google Patents
An implantation tool for patients with femoral neck fractures Download PDFInfo
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- CN113967063B CN113967063B CN202110794541.6A CN202110794541A CN113967063B CN 113967063 B CN113967063 B CN 113967063B CN 202110794541 A CN202110794541 A CN 202110794541A CN 113967063 B CN113967063 B CN 113967063B
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- straight portion
- femoral neck
- implantation tool
- component
- patients
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- 238000002513 implantation Methods 0.000 title claims abstract description 36
- 208000020089 femoral neck fracture Diseases 0.000 title claims abstract description 23
- 239000007943 implant Substances 0.000 claims abstract description 17
- 230000001154 acute effect Effects 0.000 claims abstract description 4
- 230000000670 limiting effect Effects 0.000 claims description 3
- 238000011982 device technology Methods 0.000 abstract 1
- 210000002436 femur neck Anatomy 0.000 description 8
- 208000027418 Wounds and injury Diseases 0.000 description 6
- 208000010392 Bone Fractures Diseases 0.000 description 5
- 206010017076 Fracture Diseases 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 5
- 238000005553 drilling Methods 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000006378 damage Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000035876 healing Effects 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 210000000689 upper leg Anatomy 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- 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 or setting implements
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/92—Impactors or extractors, e.g. for removing intramedullary devices
- A61B17/921—Impactors or extractors, e.g. for removing intramedullary devices for intramedullary devices
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/16—Instruments for performing osteoclasis; Drills or chisels for bones; Trepans
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/16—Instruments for performing osteoclasis; Drills or chisels for bones; Trepans
- A61B17/164—Instruments for performing osteoclasis; Drills or chisels for bones; Trepans intramedullary
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/16—Instruments for performing osteoclasis; Drills or chisels for bones; Trepans
- A61B17/1662—Instruments for performing osteoclasis; Drills or chisels for bones; Trepans for particular parts of the body
- A61B17/1664—Instruments for performing osteoclasis; Drills or chisels for bones; Trepans for particular parts of the body for the hip
- A61B17/1668—Instruments for performing osteoclasis; Drills or chisels for bones; Trepans for particular parts of the body for the hip for the upper femur
Landscapes
- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Biomedical Technology (AREA)
- Public Health (AREA)
- Veterinary Medicine (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)
- Dentistry (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Prostheses (AREA)
- Surgical Instruments (AREA)
Abstract
本发明属于医疗器械技术领域，特别涉及A61B17/68领域，具体涉及一种股骨颈骨折患者植入物的植入工具。本发明提供了一种股骨颈骨折患者植入物的植入工具，包括第一部件和第二部件；所述第一部件包括第一平直部，所述第一平直部设置有开口槽；所述第一部件还包括延伸部，所述延伸部从所述第一平直部的近端向所述开口槽的反面方向延伸；所述延伸部与所述第一平直部呈锐角；所述第二部件包括第二平直部，所述第二平直部与所述第一平直部通过所述开口槽配合设置；所述第二部件还包括孔道部，所述孔道部与所述第二平直部近端重合固定连接，远端分离若干距离固定连接。
The present invention belongs to the field of medical device technology, in particular to the field of A61B17/68, and specifically to an implantation tool for implants for patients with femoral neck fractures. The present invention provides an implantation tool for implants for patients with femoral neck fractures, comprising a first component and a second component; the first component comprises a first straight portion, the first straight portion is provided with an open slot; the first component further comprises an extension portion, the extension portion extends from the proximal end of the first straight portion to the opposite direction of the open slot; the extension portion forms an acute angle with the first straight portion; the second component comprises a second straight portion, the second straight portion is arranged in cooperation with the first straight portion through the open slot; the second component further comprises a channel portion, the channel portion overlaps and is fixedly connected with the proximal end of the second straight portion, and is fixedly connected separated by a certain distance at the distal end.
Description
Technical Field
The invention belongs to the technical field of medical appliances, in particular to the A61B17/68 field, and particularly relates to an implantation tool for a femoral neck fracture patient implant.
Background
Femoral neck fractures are a clinically common fracture type, with low energy injuries frequently seen in middle-aged and elderly patients and high energy injuries in young patients. The Chinese patent with the publication number of CN211300278U provides a femoral neck fracture angle stabilization intramedullary fixing device, a broken femoral neck is fixed in a three-hollow nail mode, anti-rotation capacity is increased through dispersion fixation, fracture reduction healing stability is improved, the Chinese patent with the publication number of CN108742807A provides a telescopic structure for femoral neck fracture reduction, the telescopic structure comprises a sleeve and a first screw, the diameter of the first screw is matched with that of the sleeve, the tail of the first screw is arranged in the sleeve, the head of the first screw is of a thread-shaped structure, the sleeve consists of a sleeve head, a sleeve middle part and a sleeve bottom, and in a biological structure, the dynamic compression effect is enhanced in a multiple way through an oriented sliding structure of an independent sleeve and a locking screw, and the synchronous rotation limiting effect is also improved. Not only can effectively overcome the defect of poor rotation resistance of the traditional DHS, but also can further keep fracture reduction and embedding, reduce the disunion rate and reduce the complications. As shown in the above patent, the main internal fixation mode at present is a DHS dynamic hip screw system which has better mechanical stability, complex operation, larger wound and long operation time, and the other three hollow nails which are internally fixed belongs to minimally invasive operation, but has poor mechanical stability, can not be used as early as possible after operation and has longer recovery time.
In recent years, a power cross nail which combines the advantages of good mechanical stability of DHS and minimally invasive implantation of three hollow nails is used for treating femoral neck fracture, structurally comprises an implantation sleeve, a power rod, a compression screw, a top plate and the like, and the power cross nail is used for treating femoral neck fracture with smaller incision and higher mechanical stability. But the power cross nail has complex shape and structure, small wound but high implantation difficulty, a plurality of implantation points are required to be arranged on the femur neck, an implantation tool which has simple and convenient operation, accurate implantation point selection and no need of expanding wound is required to be provided,
Disclosure of Invention
The invention provides an implantation tool for a femoral neck fracture patient implant, which comprises a first part and a second part, wherein the first part comprises a first straight part, the first straight part is provided with an open slot, the first part further comprises an extension part, the extension part extends from the proximal end of the first straight part to the opposite direction of the open slot, the extension part forms an acute angle with the first straight part, the second part comprises a second straight part, the second straight part and the first straight part are matched and arranged through the open slot, the second part further comprises a duct part, the duct part and the second straight part are in superposition fixed connection, and the distal end of the duct part and the proximal end of the second straight part are separated by a plurality of distances.
As a preferable technical solution, a distal end of the first straight portion is provided with a clamping groove, and an extending direction of the clamping groove is consistent with an extending direction of the extending portion.
As a preferable technical scheme, one end of the extension portion, which is far away from the first straight portion, is provided with a plurality of first drill sleeve holes, and the plurality of first drill sleeve holes are arranged in parallel on the extension portion.
As a preferable embodiment, the axial direction of the first drill sleeve hole is perpendicular to the extending direction of the extension portion, and the end portion of the extension portion is directed to the distal end of the first straight portion.
As a preferable technical scheme, the distal end of the first straight portion is provided with a plurality of second drill sleeve holes, the second drill sleeve holes are correspondingly arranged with the first drill sleeve holes, and the corresponding first drill sleeve holes and the second drill sleeve holes are arranged in an axis superposition manner.
As a preferred solution, the proximal end of the first straight portion is provided with an internal thread.
As a preferable technical scheme, the distal end of the second straight part is provided with a positioning column, the positioning column is arranged into a smooth cylindrical structure, and the root of the positioning column is provided with a limiting structure.
As a preferable technical scheme, the proximal end of the second straight portion is provided with a threaded sleeve, the proximal end of the second straight portion is provided with a stepped structure, and the threaded sleeve and the second straight portion are axially and fixedly connected in a unidirectional manner and are rotatably connected in a circumferential direction.
As a preferable technical scheme, the thread bush is provided with external threads, and the external threads of the thread bush are matched with the internal threads of the first straight part.
As a preferable technical scheme, the duct part is provided with a hollow cylinder structure with two open ends.
The beneficial effects are that:
(1) The invention provides an implantation tool for a femoral neck fracture patient implant, which is used in the treatment process of the femoral neck fracture patient, in particular to the implantation process of a power cross nail, wherein the power cross nail is required to be implanted and fixed in two different positions from two different directions into a femoral neck, if the two different positions are respectively implanted, the fixation precision of an implant body cannot be ensured, and the treatment effect is irreversibly influenced.
(2) The implantation tool provided by the invention only comprises two parts, the first part and the second part are respectively of an integrated forming structure, the assembly mode is simple, and the assembly precision and the matching stability are ensured by combining an open slot with a thread sleeve for fixation.
(3) The implantation tool provided by the invention has reasonable structural design, and in the use process, all components at the far end of the implantation tool and the tool matched with the components are converged to one point, and the parts needing to be separated and unfolded are arranged at the far end, so that the volume of the part entering a human body is ensured to be very small, the required wound area is effectively reduced, the damage to a patient is reduced, and the minimally invasive effect of the power cross nail is exerted to the greatest extent.
Drawings
FIG. 1 is a schematic view of the structure of an implantation tool for a femoral neck fracture patient implant provided by the present invention;
FIG. 2 is a schematic front view of the first component;
FIG. 3 is a schematic top view of the first component;
FIG. 4 is an enlarged schematic view at B in FIG. 2;
FIG. 5 is an enlarged schematic view at C in FIG. 2;
FIG. 6 is a schematic structural view of a second component;
FIG. 7 is a schematic cross-sectional structural view of the second component;
FIG. 8 is a reference schematic view of a powered cross-pin in use;
Wherein, 1-first part, 11-first straight portion, 1101-draw-in groove, 1102-second drill sleeve hole, 12-extension, 1201-first drill sleeve hole, 2-second part, 21-second straight portion, 2101-reference column, 2102-thread bush, 22-duct portion, 3-power cross nail.
Detailed Description
As used herein, "proximal" refers to the end of a medical instrument that is proximal to a doctor when the doctor is using the medical instrument, and "distal" refers to the end of a medical instrument that is distal to the doctor when the doctor is using the medical instrument, this term conforming to custom in the medical instrument industry.
As shown in fig. 8, the power cross nail 3 comprises a main implantation nail and a fixing plate, the main implantation nail and the fixing plate are arranged at a certain angle, the main implantation nail is used for installing the power nail to complete implantation fixation in one direction, and the fixing plate is used for adding a fixing screw to complete implantation fixation in a second direction, so that the femoral neck is fixed in two directions, and the structural strength of the femoral neck is ensured.
The implantation tool for the femoral neck fracture patient implant comprises a first part 1 and a second part 2, wherein the first part 1 comprises a first straight part 11, the first straight part 11 is provided with an open slot, the first part 1 further comprises an extension part 12, the extension part 12 extends from the proximal end of the first straight part 11 to the direction opposite to the open slot, the extension part 12 forms an acute angle with the first straight part 11, the second part 2 comprises a second straight part 21, the second straight part 21 and the first straight part 11 are matched and arranged through the open slot, the second part 2 further comprises a pore canal part 22, the pore canal part 22 and the proximal end of the second straight part 21 are fixedly connected in a superposition mode, and the distal ends of the pore canal part 22 and the second straight part 21 are fixedly connected in a superposition mode, and a plurality of distances are separated.
In some preferred embodiments, the distal end of the first straight portion 11 is provided with a clamping groove 1101, and the extending direction of the clamping groove 1101 is consistent with the extending direction of the extending portion 12.
In some preferred embodiments, the clamping groove is used for connecting a fixing plate of the power cross nail, and provides a mounting structure for matching the power cross nail with the implantation tool.
In some preferred embodiments, the end of the extension 12 away from the first straight portion 11 is provided with a plurality of first drill holes 1201, and the plurality of first drill holes 1201 are arranged in parallel on the extension 12.
In some preferred embodiments, the axial direction of the first drill sleeve 1201 is perpendicular to the extending direction of the extension 12, and the end of the extension 12 is directed to the distal end of the first straight portion 11.
In some preferred embodiments, the distal end of the first straight portion 11 is provided with a plurality of second drill sleeve holes 1102, the second drill sleeve holes 1102 are disposed corresponding to the first drill sleeve holes 1201, and the corresponding first drill sleeve holes 1201 are disposed with axes coincident with the second drill sleeve holes 1102.
In some preferred technical schemes, the first drill sleeve hole and the second drill sleeve hole are used for matching the implanting tool with the drilling device, after the main implanting nail is implanted and fixed, the fixing part is attached to the femoral neck, and the drilling tool is used for drilling the femoral neck and implanting the fixing screw through the positioning and fixing functions of the first drill sleeve hole and the second drill sleeve hole, so that the structural strength of the power cross nail is ensured.
In some preferred embodiments, the proximal end of the first straight portion 11 is provided with an internal thread.
In some preferred embodiments, the distal end of the second straight portion 21 is provided with a positioning post 2101, the positioning post 2101 is provided with a smooth cylindrical structure, and the root of the positioning post 2101 is provided with a limit structure.
In some preferred embodiments, a threaded sleeve 2102 is disposed at a proximal end of the second straight portion 21, the proximal end of the second straight portion 21 is configured as a stepped structure, and the threaded sleeve 2102 and the second straight portion 21 are configured as a one-way fixed connection in an axial direction and a rotatable connection in a circumferential direction.
In some preferred embodiments, the threaded sleeve 2102 is provided with external threads, and the external threads of the threaded sleeve 2102 are matched with the internal threads of the first straight portion 11.
In some preferred embodiments, the hole 22 is configured as a hollow cylinder structure with two open ends, and the hollow cylinder structure of the hole is used for drilling and implantation fixation during the implantation process of the compression screw.
The working principle is that the sliding rod of the power cross nail 3 is arranged in the positioning inner hole of the implanted steel plate of the power cross nail 3, then the assembly platform of the power cross nail 3 and the clamping groove of the first component 1 are assembled, the second component 2 is arranged in the first component 1 through the opening groove of the first component 1, the positioning column of the second component 2 is inserted into the positioning hole of the power cross nail 3, at the moment, a certain gap is reserved between the end face of the positioning column of the second component 2 and the end face of the sliding rod of the power cross nail 3, the sliding rod can slide conveniently after operation, movable compression of fracture is realized, and healing is facilitated. Then the external thread of the second part 2 is matched and screwed with the internal thread of the first part 1, so that the assembling relationship between the power cross nail 3 and the first part 1 is realized, and the power cross nail 3 cannot be separated from the first part 1. The assembled structure power cross nail 3 sliding rod and the power cross nail 3 are implanted into the outer leakage end of the steel plate, the steel plate is filled into an inner hole drilled in advance at a fracture position of a femoral neck, the outer leakage surface at a clamping groove of the power cross nail 3 contacts the surface of the femur, after the steel plate is placed at a proper middle position, a drill bit and a sleeve are facilitated to drill a bottom hole of a locking screw which is required to be implanted in addition through a drill sleeve hole of the first component 1, the locking screw is screwed into the locking screw through the sleeve by a spanner and finally connected with the internal thread of the steel plate implanted with the power cross nail 3, finally, a drill bit is used for drilling the bottom hole of the power cross nail 3 through a drill bit of the second component 2 and a pressurizing screw hole, then the drill bit is taken out, the power cross nail 3 pressurizing screw is implanted and locked through the drill bit of the second component 2 and the pressurizing screw hole by the spanner, and thus the implantation action of the power cross nail 3 prosthesis is completed.
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110794541.6A CN113967063B (en) | 2021-07-14 | 2021-07-14 | An implantation tool for patients with femoral neck fractures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110794541.6A CN113967063B (en) | 2021-07-14 | 2021-07-14 | An implantation tool for patients with femoral neck fractures |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113967063A CN113967063A (en) | 2022-01-25 |
| CN113967063B true CN113967063B (en) | 2025-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110794541.6A Active CN113967063B (en) | 2021-07-14 | 2021-07-14 | An implantation tool for patients with femoral neck fractures |
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| CN (1) | CN113967063B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN215688366U (en) * | 2021-07-14 | 2022-02-01 | 常州康鼎医疗器械有限公司 | Implanting tool for implant of femoral neck fracture patient |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU53139U1 (en) * | 2005-10-17 | 2006-05-10 | Дмитрий Игоревич Заворыкин | DYNAMIC FEM SCREW WITH ANCHOR MECHANISM |
| CN201602871U (en) * | 2010-02-27 | 2010-10-13 | 刘丹 | Static hip bolt used for curing femur intertrochanteric unstable fracture |
| CN204484277U (en) * | 2015-03-02 | 2015-07-22 | 刘应忠 | Neck of femur localizer |
| CN213156353U (en) * | 2020-06-18 | 2021-05-11 | 郭宏君 | In vivo implant device for femoral neck fracture |
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- 2021-07-14 CN CN202110794541.6A patent/CN113967063B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN215688366U (en) * | 2021-07-14 | 2022-02-01 | 常州康鼎医疗器械有限公司 | Implanting tool for implant of femoral neck fracture patient |
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| Publication number | Publication date |
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| CN113967063A (en) | 2022-01-25 |
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