CN219835672U - Reverse barb intramedullary facet joint fusion device - Google Patents
Reverse barb intramedullary facet joint fusion device Download PDFInfo
- Publication number
- CN219835672U CN219835672U CN202321108411.3U CN202321108411U CN219835672U CN 219835672 U CN219835672 U CN 219835672U CN 202321108411 U CN202321108411 U CN 202321108411U CN 219835672 U CN219835672 U CN 219835672U
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- China
- Prior art keywords
- inclined body
- barb
- intramedullary
- facet joint
- fusion device
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- 230000004927 fusion Effects 0.000 title claims abstract description 24
- 210000002517 zygapophyseal joint Anatomy 0.000 title claims abstract description 24
- 239000004696 Poly ether ether ketone Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 229920002530 polyetherether ketone Polymers 0.000 claims description 5
- JUPQTSLXMOCDHR-UHFFFAOYSA-N benzene-1,4-diol;bis(4-fluorophenyl)methanone Chemical compound OC1=CC=C(O)C=C1.C1=CC(F)=CC=C1C(=O)C1=CC=C(F)C=C1 JUPQTSLXMOCDHR-UHFFFAOYSA-N 0.000 claims description 3
- 238000011084 recovery Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 description 6
- 210000000988 bone and bone Anatomy 0.000 description 3
- 238000012937 correction Methods 0.000 description 3
- 230000035876 healing Effects 0.000 description 3
- 230000001054 cortical effect Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000007499 fusion processing Methods 0.000 description 1
- 230000007794 irritation Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 210000004872 soft tissue Anatomy 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Surgical Instruments (AREA)
Abstract
The utility model relates to the field of medical equipment, in particular to a reverse barb intramedullary facet joint fusion device. The reverse barb intramedullary facet joint fusion device comprises an elastic rod-shaped body, wherein one end of the rod-shaped body is provided with a forward thread part, the other end of the rod-shaped body is provided with a barb part, the barb part comprises a first inclined body and a second inclined body which incline towards two sides, and a V-shaped groove is formed between the first inclined body and the second inclined body. According to the reverse barb intramedullary facet joint fusion device, when the reverse barb intramedullary facet joint fusion device is used, through the cooperation of the forward threaded portion, the first inclined body, the second inclined body, the V-shaped groove and the like, the first inclined body and the second inclined body are temporarily folded by means of an instrument, the forward threaded portion is inserted into a fixing hole which is punched in a joint in advance, the first inclined body and the second inclined body are loosened, acting force is applied to two sides of the fixing hole by the barb portions formed by the first inclined body and the second inclined body, so that the fixing stability is improved, falling is prevented, and the success rate of an operation and the recovery efficiency are improved.
Description
Technical Field
The utility model relates to the field of medical equipment, in particular to a reverse barb intramedullary facet joint fusion device.
Background
The current operation for the correction fusion of the facet joints is mainly carried out through titanium alloy screws and plates in the market, the combination of the nail plates also has long use history, then the pressurizing effect of the nail plates in the fusion process is often not ideal, certain limitation exists, and the nail plates and rigid screws or other schemes with fixed length possibly cause compression loss in the bone rearrangement or remodeling process. This may result in delayed or non-healing.
Conventional fixed length rigid screws may not be able to remain pressurized throughout the dynamic healing process.
The fixed combination of steel plate and screw is relatively stiff, and has the problem of soft tissue irritation, especially at ossicular sites.
Therefore, it is desirable to design a device that remains pressurized and less prone to falling out during the healing process.
Disclosure of Invention
Aiming at the defects in the prior art, the utility model provides a reverse barb intramedullary facet joint fusion device.
The technical scheme adopted by the utility model is as follows: the reverse barb intramedullary facet joint fusion device comprises an elastic rod-shaped body, wherein one end of the rod-shaped body is provided with a forward thread part, the other end of the rod-shaped body is provided with a barb part, the barb part comprises a first inclined body and a second inclined body which incline towards two sides, and a V-shaped groove is formed between the first inclined body and the second inclined body.
In order to better realize the utility model, the outer side of the first inclined body and the outer side of the second inclined body are provided with consistent reverse threads.
In order to better realize the utility model, a through hole penetrating through the end part of the positive thread part is arranged at the bottom of the V-shaped groove.
To better implement the utility model, the V-shaped groove has a depth of one third of the entire rod-shaped body.
In order to better realize the utility model, the rod-shaped body is formed by integrally forming the forward thread part and the barb part.
In order to better realize the utility model, the rod-shaped body is made of PEEK material.
The beneficial effects of the utility model are as follows: according to the reverse barb intramedullary facet joint fusion device, when the reverse barb intramedullary facet joint fusion device is used, through the cooperation of the forward threaded portion, the first inclined body, the second inclined body, the V-shaped groove and the like, the first inclined body and the second inclined body are temporarily folded by means of an instrument, the forward threaded portion is inserted into a fixing hole which is punched in a joint in advance, the first inclined body and the second inclined body are loosened, acting force is applied to two sides of the fixing hole by the barb portions formed by the first inclined body and the second inclined body, so that the fixing stability is improved, falling is prevented, and the success rate of an operation and the recovery efficiency are improved.
The outer side of the first inclined body and the outer side of the second inclined body are provided with consistent reverse threads, the direction of the reverse threads is opposite to that of the forward threads, the reverse threads generate additional pressurization on the whole joint, and a larger grabbing effect can be generated on the proximal phalanges and the cortical bones, so that the anti-extraction force is balanced, the falling-off is prevented, and the success rate and the recovery efficiency of the operation are further improved.
The bottom of V-arrangement groove be provided with the through-hole that runs through the tip of forward screw portion, can use the guide pin to pass this through-hole, the MP joint is fixed in order to guarantee the correction effect temporarily, strengthens tensile strength simultaneously, prevents to drop, has further improved operation success rate and recovery efficiency.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. Like elements or portions are generally identified by like reference numerals throughout the several figures. In the drawings, elements or portions thereof are not necessarily drawn to scale.
FIG. 1 is a schematic illustration of one construction of a reverse barb intramedullary facet joint fusion device of the present utility model;
FIG. 2 is a schematic illustration of another configuration of the reverse barb intramedullary facet joint fusion device of the present utility model;
FIG. 3 is a schematic illustration of one configuration of the reverse barb intramedullary facet joint fusion device of the present utility model in internal cross-section;
in the drawings, a 1-forward thread part, a 2-barb part, a 3-first inclined body, a 4-second inclined body, a 5-V-shaped groove and a 6-through hole are formed.
Detailed Description
Embodiments of the technical scheme of the present utility model will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present utility model, and thus are merely examples, and are not intended to limit the scope of the present utility model.
It is noted that unless otherwise indicated, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.
Examples:
as shown in fig. 1 to 3, the reverse barb intramedullary facet joint fusion device of the present utility model comprises an elastic rod-shaped body, one end of which is provided with a forward thread portion 1, and the other end is provided with a barb portion 2, wherein the barb portion 2 comprises a first inclined body 3 and a second inclined body 4 which incline to two sides, and a V-shaped groove 5 is formed between the first inclined body 3 and the second inclined body 4. According to the reverse barb intramedullary facet joint fusion device, when the reverse barb intramedullary facet joint fusion device is used, through the cooperation of the forward threaded portion 1, the first inclined body 3, the second inclined body 4, the V-shaped groove 5 and the like, the first inclined body 3 and the second inclined body 4 are temporarily folded by means of an instrument, the forward threaded portion 1 is inserted into a fixing hole which is punched in advance on a joint, the first inclined body 3 and the second inclined body 4 are loosened, the barb portion 2 formed by the first inclined body 3 and the second inclined body 4 applies acting force to two sides of the fixing hole, so that the fixing stability is improved, falling is prevented, and the success rate of an operation and the recovery efficiency are improved.
Preferably, a uniform reverse thread is provided on the outer side of the first inclined body 3 and the outer side of the second inclined body 4. The outer side of the first inclined body 3 and the outer side of the second inclined body 4 are provided with consistent reverse threads, the reverse threads are opposite to the threads of the forward thread part 1, the reverse threads generate additional pressurization on the whole joint, and a larger grabbing effect can be generated on the proximal phalanges and the cortical bones, so that the anti-extraction force is balanced, the falling off is prevented, and the success rate and the recovery efficiency of the operation are further improved.
Preferably, a through hole 6 penetrating the end of the forward threaded portion 1 is provided at the bottom of the V-shaped groove 5. The bottom of the V-shaped groove 5 is provided with a through hole 6 penetrating through the end part of the forward thread part 1, a guide pin can be used for penetrating through the through hole 6, MP joints are temporarily fixed to ensure the correction effect, meanwhile, the tensile strength is enhanced, the falling off is prevented, and the success rate and the recovery efficiency of the operation are further improved.
Preferably, the depth of the V-shaped groove 5 is one third of the whole rod-shaped body.
Preferably, the rod-shaped body is formed by integrally forming the forward thread part 1 and the barb part 2.
Further preferably, the rod-shaped body is made of PEEK material, namely polyether-ether-ketone material, which has excellent biocompatibility and can improve the operation effect and the recovery speed of patients. The polyether-ether-ketone material has excellent chemical stability, excellent mechanical property, high flame resistance and radiation resistance, and good fatigue resistance and wear resistance.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model, and are intended to be included within the scope of the appended claims and description.
Claims (6)
1. Reverse barb intramedullary facet joint fusion ware, its characterized in that: including elastic shaft-like body, set up positive screw thread portion (1) in the one end of this shaft-like body, the other end sets up barb portion (2), barb portion (2) including first inclined body (3) and the second inclined body (4) to both sides slope, form V-arrangement groove (5) between this first inclined body (3) and the second inclined body (4).
2. The reverse barb intramedullary facet joint fusion device of claim 1, wherein: and the outer side of the first inclined body (3) and the outer side of the second inclined body (4) are provided with consistent reverse threads.
3. The reverse barb intramedullary facet joint fusion device of claim 2, wherein: a through hole (6) penetrating the end part of the positive thread part (1) is arranged at the bottom of the V-shaped groove (5).
4. The reverse barb intramedullary facet joint fusion device of claim 1, wherein: the depth of the V-shaped groove (5) is one third of the depth of the whole rod-shaped body.
5. The reverse barb intramedullary facet joint fusion device of claim 1, wherein: the rod-shaped body is formed by integrally forming a forward thread part (1) and a barb part (2).
6. The reverse barb intramedullary facet joint fusion device of claim 5, wherein: the rod-shaped body is made of PEEK material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321108411.3U CN219835672U (en) | 2023-05-09 | 2023-05-09 | Reverse barb intramedullary facet joint fusion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321108411.3U CN219835672U (en) | 2023-05-09 | 2023-05-09 | Reverse barb intramedullary facet joint fusion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219835672U true CN219835672U (en) | 2023-10-17 |
Family
ID=88303581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321108411.3U Active CN219835672U (en) | 2023-05-09 | 2023-05-09 | Reverse barb intramedullary facet joint fusion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219835672U (en) |
-
2023
- 2023-05-09 CN CN202321108411.3U patent/CN219835672U/en active Active
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