CN116602749A - Compression locking screw and compression locking integrated bone plate nail system - Google Patents
Compression locking screw and compression locking integrated bone plate nail system Download PDFInfo
- Publication number
- CN116602749A CN116602749A CN202310514240.2A CN202310514240A CN116602749A CN 116602749 A CN116602749 A CN 116602749A CN 202310514240 A CN202310514240 A CN 202310514240A CN 116602749 A CN116602749 A CN 116602749A
- Authority
- CN
- China
- Prior art keywords
- screw
- locking
- bone plate
- pressurizing
- compression
- 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.)
- Pending
Links
- 210000000988 bone and bone Anatomy 0.000 title claims abstract description 49
- 230000006835 compression Effects 0.000 title claims abstract description 25
- 238000007906 compression Methods 0.000 title claims abstract description 25
- 230000007704 transition Effects 0.000 claims abstract description 26
- 208000010392 Bone Fractures Diseases 0.000 claims description 14
- 230000000694 effects Effects 0.000 description 13
- 238000000034 method Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 10
- 206010049514 Traumatic fracture Diseases 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- 206010017076 Fracture Diseases 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- 230000008733 trauma Effects 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, 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
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts therefor
-
- 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
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
-
- 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
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
- A61B17/808—Instruments for holding or positioning bone plates, or for adjusting screw-to-plate locking mechanisms
Landscapes
- 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)
- Neurology (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 relates to the technical field of medical appliances, and discloses a compression locking screw and a compression locking integrated bone plate nail system, which comprises a screw rod part and a screw head part, wherein a transition part is arranged between the screw rod part and the screw head part, threads of the screw rod part adopt thread teeth of a tension screw, the screw head part is provided with locking threads, and the length A of the screw head part is equal to the length B of the transition part; the pressurizing and locking screw and the pressurizing and locking integrated bone plate nail system provided by the invention solve the problems that the axial pressurizing and locking of the traditional pressurizing and locking structure respectively need the operation of pressurizing and locking by a lag screw and a locking screw, the operation difficulty is high, the operation time is long and the medical cost of wound fracture is increased.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a pressurizing locking screw and a pressurizing locking integrated bone plate nail system.
Background
The use of locking bone plates is quite common in the current field of trauma fracture treatment. In the use process of the bone fracture plate, the compression and locking functions between the fracture are realized by the cooperation of the lag screw and the compression hole and the cooperation of the locking screw and the locking hole.
Compression (between screw and bone fracture) and locking (locking between screw and bone plate forms an angle stabilization) are the most important therapeutic principles and methods of modern treatment of bone fractures. The prior locking compression bone plate (shown in figure 1) and the same combining hole (shown in figure 2) can complete two mature treatment means of lag screw technology and locking bone plate screw technology. The threaded hole 1' at the front end of the combining hole can be matched with a locking screw, and the axial stress generated by the screw is extremely low. The fixation of such screws is based on locking the screw head in the bone plate hole. The unthreaded part in the combination hole is a pressurizing hole 2', and is matched with a lag screw (shown in figure 3) for use, and when the lag screw rotates clockwise, axial force is generated between the threaded inclined surface and the combination surface of the bone, so that the axial pressurizing effect is achieved. In the use process, the same combining hole can only select the locking or pressurizing part to play a single locking or pressurizing role.
The problems of the prior designs are that the axial pressurization and locking of the prior designs respectively need the pressurization and locking operation of the lag screw and the locking screw, the operation difficulty is high, the operation time is long, and the medical cost of the traumatic fracture is increased. In addition, machining the engagement holes in the bone plate also reduces the strength of the bone plate, increasing the risk of the patient interrupting the plate during recovery.
Disclosure of Invention
The present invention is directed to a compression locking screw and compression locking integrated bone plate nail system that solves at least one of the above-identified problems of the prior art.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the utility model provides a pressurization locking screw, includes screw pole portion and screw head, have the transition portion between screw pole portion and the screw head, the screw thread of screw pole portion adopts the screw thread profile of lag screw, the screw head is equipped with locking screw thread, the length A of screw head equals with the length B of transition portion.
According to the technical scheme, in the use process, the screw can be screwed into the locking hole on the bone fracture plate through the screw, the screw rod part can be screwed into the bone of a patient, the limiting lock pliers can be used for clamping before the transition part is screwed into the bone fracture plate, the screw head part is prevented from being screwed into and locked, the screw is continuously screwed into the bone, the screw head part and the bone fracture plate are unchanged in position, the axial pressurizing effect is achieved, the limiting lock pliers are loosened after the pressurizing is completed, the screw head part is screwed into the locking hole of the bone fracture plate, and the pressurizing effect is guaranteed due to the fact that the screw head part is screwed into the same in depth and the transition part in length, and the locking effect is achieved.
The locking and axial pressurizing functions of the technical scheme can be completed by one screw, so that the operation difficulty and operation time are reduced, and the medical cost of traumatic fracture can be reduced. The locking and pressurizing functions do not need to process the combining holes on the bone plate any more, only one hole type is needed for the locking holes, the strength of the bone plate can be improved, and the risk of broken plates in the recovery process of patients is reduced.
Further, in order to achieve a better locking effect between the screw head and the bone plate, the screw head is a tapered head with an outside diameter that is larger than an inside diameter.
Further, in order to improve locking efficiency and reduce operation time while guaranteeing locking effect, the locking thread adopts a double thread structure.
Further, in order to be in butt joint with the screwing operation instrument so as to conveniently realize screwing operation of the screw, the screw head is provided with a screwing groove.
The invention also provides a pressurizing and locking integrated bone plate nail system, which comprises a bone plate, a lock limiting clamp and the pressurizing and locking screw, wherein the bone plate is provided with a locking hole, the locking screw is in threaded fit with the locking hole, and the lock limiting clamp is provided with a clamping part for clamping the transition part.
The system only uses one screw to adopt a lag screw thread form and a screw head part with a locking thread, and simultaneously realizes the functions of axial pressurization and locking in the locking hole, thereby reducing the operation time and the operation cost; the length of the transition part is consistent with the height of the head of the screw, and the pressurizing is ensured not to be invalid in the screwing process of loosening the lock limiting pliers after the axial pressurizing is completed; the special locking clamp is designed to be matched with a locking pressurizing screw to ensure that the head of the screw completes the pressurizing action before being screwed into a locking hole.
Further, the height of the clamping part is consistent with the height of the transition part.
Further, the thickness of the bone plate is equal to the length of the transition part and the screw head.
The beneficial effects of the invention are as follows: according to the technical scheme, in the use process, the screw can be screwed into the locking hole on the bone fracture plate through the screw, the screw rod part can be screwed into the bone of a patient, the limiting lock pliers can be used for clamping before the transition part is screwed into the bone fracture plate, the screw head part is prevented from being screwed into and locked, the screw is continuously screwed into the bone, the screw head part and the bone fracture plate are unchanged in position, the axial pressurizing effect is achieved, the limiting lock pliers are loosened after the pressurizing is completed, the screw head part is screwed into the locking hole of the bone fracture plate, and the pressurizing effect is guaranteed due to the fact that the screw head part is screwed into the same in depth and the transition part in length, and the locking effect is achieved.
The locking and axial pressurizing functions of the technical scheme can be completed by one screw, so that the operation difficulty and operation time are reduced, and the medical cost of traumatic fracture can be reduced. The locking and pressurizing functions do not need to process the combining holes on the bone plate any more, only one hole type is needed for the locking holes, the strength of the bone plate can be improved, and the risk of broken plates in the recovery process of patients is reduced.
Drawings
FIG. 1 is a schematic view of a prior art bone plate design;
FIG. 2 is a schematic view of the structure of a combination hole on a prior art bone plate;
FIG. 3 is a schematic view of a lag screw in use according to the prior art;
FIG. 4 is a schematic view of the structure of the compression locking screw of the present invention;
FIG. 5 is a schematic view of the structure of the compression locking screw and bone plate of the present invention in use;
FIG. 6 is a schematic side view of the head of the screw of the present invention;
fig. 7 is a schematic structural view of the lock clamp in the present invention.
In the figure: a screw shaft 1; a screw head 2; a transition section 3; locking threads 4; a bone plate 5; a clamping part 6; screwing the groove 7; a lock limiting clamp 8; locking hole 9.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be briefly described below with reference to the accompanying drawings and the description of the embodiments or the prior art, and it is obvious that the following description of the structure of the drawings is only some embodiments of the present invention, and other drawings can be obtained according to these drawings without inventive effort to a person skilled in the art. It should be noted that the description of these examples is for aiding in understanding the present invention, but is not intended to limit the present invention.
Example 1:
as shown in fig. 4-7, the present embodiment provides a compression locking screw, which includes a screw shaft portion 1 and a screw head portion 2, wherein a transition portion 3 is provided between the screw shaft portion 1 and the screw head portion 2, the screw thread of the screw shaft portion 1 adopts a thread tooth of a lag screw, the screw head portion 2 is provided with a locking thread 4, and the length a of the screw head portion 2 is equal to the length B of the transition portion 3.
According to the technical scheme, in the use process, the screw is screwed into the locking hole 9 on the bone plate 5, the screw rod part 1 can be screwed into the bone of a patient, before the transition part 3 is screwed into the bone plate 5, the locking clamp 8 can be used for clamping, the screw head part 2 is prevented from being screwed into the lock, the screw is continuously screwed, the screw rod part 1 is continuously screwed into the bone, the positions of the screw head part 2 and the bone plate 5 are unchanged, the axial pressurizing effect is achieved, the locking clamp 8 is loosened after the pressurizing is completed, the screw head part 2 is screwed into the locking hole 9 of the bone plate 5, and the length A of the screw head part 2 is equal to the length B of the transition part 3, namely, the screwing depth of the screw head part 2 is equal to the length of the transition part 3, the pressurizing effect is guaranteed, and the locking effect is completed simultaneously.
The locking and axial pressurizing functions of the technical scheme can be completed by one screw, so that the operation difficulty and operation time are reduced, and the medical cost of traumatic fracture can be reduced. The locking and pressurizing action does not need to process a combination hole on the bone plate 5, only one hole type of the locking hole 9 is needed, the strength of the bone plate 5 can be improved, and the risk of broken plates in the recovery process of patients is reduced.
Example 2:
this example was optimized based on example 1 above.
In order to achieve a better locking between the screw head 2 and the bone plate 5, the screw head 2 is a conical head with an outer diameter on the outside that is larger than the inner diameter.
Example 3:
this example was optimized based on example 1 above.
In order to improve the locking efficiency and reduce the operation time while ensuring the locking effect, the locking thread 4 adopts a double thread structure.
Example 4:
this example was optimized based on example 1 above.
For interfacing with a screwing operation instrument for facilitating the screwing operation of the screw, the screw head 2 is provided with a screwing groove 7.
Example 5:
the invention also provides a pressurizing and locking integrated bone plate nail system, which comprises a bone plate 5, a locking clamp 8 and a pressurizing and locking screw according to any one of the embodiments 1-4, wherein the bone plate 5 is provided with a locking hole 9, the locking screw 4 is in threaded fit with the locking hole 9, the locking clamp 8 is provided with a clamping part 6 for clamping the transition part 3, the height of the clamping part 6 is consistent with the height of the transition part 3, and the thickness of the bone plate 5 is equal to the lengths of the transition part 3 and the screw head 2.
The system only uses one screw to adopt a lag screw thread form and a screw head 2 with a locking thread 4, and simultaneously realizes the functions of axial pressurization and locking in a locking hole 9, thereby reducing the operation time and the operation cost; the length of the transition part 3 is consistent with the height of the screw head 2, and the pressurizing is ensured not to be invalid in the screwing process of loosening the lock limiting pliers 8 after the axial pressurizing is finished; the special locking pliers 8 are designed to cooperate with a compression locking screw such that the screw head 2 is pressurized before being screwed into the locking hole 9.
Finally, it should be noted that: the above is only a preferred embodiment of the present invention and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A compression locking screw, characterized by: the novel screw comprises a screw rod portion and a screw head portion, wherein a transition portion is arranged between the screw rod portion and the screw head portion, threads of the screw rod portion are screw threads of a lag screw, locking threads are arranged on the screw head portion, and the length A of the screw head portion is equal to the length B of the transition portion.
2. A compression locking screw as claimed in claim 1, wherein: the screw head is a conical head, the outside external diameter of which is greater than the inside external diameter.
3. A compression locking screw as claimed in claim 1, wherein: the locking thread adopts a double-thread structure.
4. A compression locking screw as claimed in claim 1, wherein: the screw head is provided with a screwing groove.
5. A compression locking integrated bone plate nail system, characterized in that: the compression locking screw comprises a bone plate, a locking clamp and the compression locking screw as claimed in any one of claims 1-4, wherein a locking hole is formed in the bone plate, locking threads are in threaded fit with the locking hole, and a clamping part for clamping the transition part is arranged on the locking clamp.
6. The compression locking integrated bone plate nail system of claim 5, wherein: the height of the clamping part is consistent with that of the transition part.
7. The compression locking integrated bone plate nail system of claim 5, wherein: the thickness of the bone fracture plate is equal to the length of the transitional part and the screw head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310514240.2A CN116602749A (en) | 2023-05-08 | 2023-05-08 | Compression locking screw and compression locking integrated bone plate nail system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310514240.2A CN116602749A (en) | 2023-05-08 | 2023-05-08 | Compression locking screw and compression locking integrated bone plate nail system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116602749A true CN116602749A (en) | 2023-08-18 |
Family
ID=87677403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310514240.2A Pending CN116602749A (en) | 2023-05-08 | 2023-05-08 | Compression locking screw and compression locking integrated bone plate nail system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116602749A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003127068A (en) * | 2001-10-22 | 2003-05-08 | Jefcom Kk | Pliers |
| CN202568430U (en) * | 2012-01-13 | 2012-12-05 | 刘少华 | Slide fastener screw removal forceps for orthopaedic surgery |
| CN103720507A (en) * | 2012-10-15 | 2014-04-16 | 无锡市世一电力机械厂 | Pressurizing locking screw system |
| US20160074081A1 (en) * | 1999-09-13 | 2016-03-17 | DePuy Synthes Products, Inc. | Bone Plating System |
| CN109330674A (en) * | 2018-09-07 | 2019-02-15 | 西安卓恰医疗器械有限公司 | A kind of internal fixation system and its usage mode |
| CN217886178U (en) * | 2022-04-11 | 2022-11-25 | 河北医科大学第三医院 | Pressurization locking screw and implantation tool |
-
2023
- 2023-05-08 CN CN202310514240.2A patent/CN116602749A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160074081A1 (en) * | 1999-09-13 | 2016-03-17 | DePuy Synthes Products, Inc. | Bone Plating System |
| JP2003127068A (en) * | 2001-10-22 | 2003-05-08 | Jefcom Kk | Pliers |
| CN202568430U (en) * | 2012-01-13 | 2012-12-05 | 刘少华 | Slide fastener screw removal forceps for orthopaedic surgery |
| CN103720507A (en) * | 2012-10-15 | 2014-04-16 | 无锡市世一电力机械厂 | Pressurizing locking screw system |
| CN109330674A (en) * | 2018-09-07 | 2019-02-15 | 西安卓恰医疗器械有限公司 | A kind of internal fixation system and its usage mode |
| CN217886178U (en) * | 2022-04-11 | 2022-11-25 | 河北医科大学第三医院 | Pressurization locking screw and implantation tool |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106901848B (en) | Anchorage nail | |
| CN201519187U (en) | Locking compression bone plate | |
| CN204765887U (en) | Hollow rivet | |
| CN116602749A (en) | Compression locking screw and compression locking integrated bone plate nail system | |
| CN2887264Y (en) | Medical hollow compressive threaded nail | |
| CN209826938U (en) | Bidirectional compression screw assembly | |
| CN210019595U (en) | Intramedullary nail for femur | |
| CN202154737U (en) | Combined-type three-dimensional traction fixation rack for wrist joints | |
| CN100496424C (en) | Bridge joining composite bone fracture internal fixing device | |
| CN204133596U (en) | A kind of synthetism Wicresoft locking device | |
| CN205019148U (en) | Bone screw of screw in fast | |
| CN203576623U (en) | Straight locking plate for ulna and radius | |
| CN204446078U (en) | Cluster metal bone fracture plate | |
| CN210472251U (en) | Pedicle screw | |
| CN213665655U (en) | Double-end pressurization hollow screw | |
| CN203291003U (en) | Thighbone locking plate | |
| CN111419371A (en) | Cross-engaged proximal femoral intramedullary nail | |
| CN203029363U (en) | Threaded spicule | |
| CN109745113A (en) | A kind of loose bone cement reinforcement pedicle screw of novel bone | |
| WO2019242300A1 (en) | Anti-burst headless compression hollow screw | |
| CN203598031U (en) | Bone plate with double-thread locking and pressurization holes shaped like Chinese character 'ba' | |
| CN111839701A (en) | Novel pedicle screw and implantation method thereof | |
| CN201481540U (en) | Self-tapping locking type screw | |
| CN216090736U (en) | Universal hollow locking screw | |
| CN209713112U (en) | A kind of forcing screw for sufferers of osteoporosis face |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |