CN116138864A - Double-head hollow screw with wire - Google Patents
Double-head hollow screw with wire Download PDFInfo
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- CN116138864A CN116138864A CN202211679197.7A CN202211679197A CN116138864A CN 116138864 A CN116138864 A CN 116138864A CN 202211679197 A CN202211679197 A CN 202211679197A CN 116138864 A CN116138864 A CN 116138864A
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- Prior art keywords
- screw
- self
- double
- tapping
- tail
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- 238000010079 rubber tapping Methods 0.000 claims abstract description 54
- 210000002435 tendon Anatomy 0.000 claims abstract description 26
- 238000002513 implantation Methods 0.000 claims abstract description 12
- 241000587161 Gomphocarpus Species 0.000 claims description 10
- 208000010392 Bone Fractures Diseases 0.000 abstract description 32
- 210000000988 bone and bone Anatomy 0.000 abstract description 11
- 238000011084 recovery Methods 0.000 abstract description 9
- 206010017076 Fracture Diseases 0.000 description 18
- 238000000034 method Methods 0.000 description 3
- 239000011295 pitch Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 210000001519 tissue Anatomy 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
Images
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
- A61B17/864—Pins or screws or threaded wires; nuts therefor hollow, e.g. with socket or cannulated
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/04—Surgical instruments, devices or methods, e.g. tourniquets for suturing wounds; Holders or packages for needles or suture materials
- A61B17/0401—Suture anchors, buttons or pledgets, i.e. means for attaching sutures to bone, cartilage or soft tissue; Instruments for applying or removing suture anchors
-
- 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
- A61B17/8625—Shanks, i.e. parts contacting bone tissue
-
- 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
- A61B17/8625—Shanks, i.e. parts contacting bone tissue
- A61B17/8635—Tips of screws
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/04—Surgical instruments, devices or methods, e.g. tourniquets for suturing wounds; Holders or packages for needles or suture materials
- A61B17/0401—Suture anchors, buttons or pledgets, i.e. means for attaching sutures to bone, cartilage or soft tissue; Instruments for applying or removing suture anchors
- A61B2017/0464—Suture anchors, buttons or pledgets, i.e. means for attaching sutures to bone, cartilage or soft tissue; Instruments for applying or removing suture anchors for soft tissue
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)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Neurology (AREA)
- Rheumatology (AREA)
- Surgical Instruments (AREA)
Abstract
The invention discloses a double-head hollow screw with a thread, which comprises a screw head part, a rod body part and a screw tail part, wherein the screw head part, the rod body part and the screw tail part are sequentially connected, the surface of the screw head part is provided with a first self-tapping thread, the screw head part is provided with a notch plane, and the notch plane is provided with a threading hole for threading out a suture; the surface of the nail tail is provided with a second self-tapping thread, and the tail end of the nail tail is provided with an implantation notch. The two ends of the screw are respectively provided with a first self-tapping thread and a second self-tapping thread, and the design structure of double-head threads is adopted, so that the broken bone blocks can be stretched during implantation, the broken bone blocks are reset, and fracture recovery is facilitated; the head of the screw is provided with the threading hole, so that the tendon can be sutured by using the suture, the screw can be connected with the tendon while the bone block is reset, repeated operations are avoided, the fracture and tendon fracture are recovered while the screw is implanted once, and the burden caused by repeated use of the anchor can be reduced.
Description
Technical Field
The invention belongs to the technical field of medical instruments, and particularly relates to a threaded double-ended hollow screw.
Background
The bone tendon is combined into a special part with a complex tissue structure, and the special part is used for conducting force between bones and muscles, so that stress concentration can be effectively reduced, and the elastic modulus between tendons and bone tissues can be balanced. At the tissue site with complex structure of bone-tendon combination, the fracture is often accompanied by the reduction of tendon attachment points and even fracture, so that poor recovery of patients is caused, and the fracture needs to be reduced and then the tendon is fixed for the fracture of bone-tendon combination. At present, for the fracture injury, a fracture part is usually reset and fixed by adopting a bone fracture plate and a lag screw, and then the fracture part is restored and fixed to tendons by adopting an anchor, but the following problems exist by adopting the method: 1. firstly, the fracture recovery and fixation can occupy optional parts of the anchor nails, so that poor tendon recovery is caused; 2. the adoption of the respective resetting method can cause repeated use of the anchor nails, and can cause burden on bone block recovery; 3. after the tendon is reset, the suture lines carried by the anchor nails can be covered on the bone plate and the tension screws, so that the postoperative implant is inconvenient to take out, and secondary damage can be caused to the tendon if the anchor nails and the suture lines are taken out.
Disclosure of Invention
The invention aims to provide a double-ended hollow screw with a wire, which is used for solving the problems in the prior art.
In order to achieve the above purpose, the present invention adopts the following technical scheme: the double-head hollow screw with the thread comprises a screw head part, a screw body part and a screw tail part, wherein the screw head part, the screw body part and the screw tail part are sequentially connected, a first self-tapping thread is arranged on the surface of the screw head part, a notch plane is arranged on the screw head part, and a threading hole for threading a suture is arranged on the notch plane; the surface of the nail tail is provided with a second self-tapping thread, and the tail end of the nail tail is provided with an implantation notch.
As an optional design structure of the technical scheme, the pitches of the first self-tapping thread and the second self-tapping thread are different.
As an optional design structure of the technical scheme, the tail part of the nail is provided with a self-tapping groove.
As an optional design structure of the technical scheme, the self-tapping groove is spiral.
As an optional design structure of the above technical scheme, the spiral direction of the self-tapping groove is the same as the spiral direction of the second self-tapping thread.
As an alternative design structure of the technical scheme, the incision plane is provided with at least two threading holes, and two ends of the suture thread respectively penetrate out of the two threading holes to suture the tendon.
As an optional design structure of the above technical scheme, the surface of the rod body is smooth, and the outer diameter of the rod body is smaller than the maximum outer diameters of the first self-tapping thread and the second self-tapping thread.
As an optional design structure of the technical scheme, the nail head is provided with a sinking groove, the inner wall of the sinking groove is provided with a wire groove, and the wire groove is communicated with the double-wire hole.
As an alternative design structure of the technical scheme, the sinking groove is hexagonal, cross-shaped or quincuncial.
As an alternative design structure of the technical scheme, the rod body is provided with a first through hole along the axis direction of the rod body, the tail part of the nail is provided with a second through hole along the axis direction of the rod body, and the sinking groove, the first through hole and the second through hole are sequentially communicated and form a channel for the guide pin to move.
As an optional design structure of the technical scheme, the nail head part, the rod body part and the nail tail part are integrally formed.
The beneficial effects of the invention are as follows:
the invention provides a double-head hollow screw with a wire, wherein two ends of the screw are respectively provided with a first self-tapping thread and a second self-tapping thread, and the double-head hollow screw adopts a design structure of double-head threads, so that a broken bone block can be stretched during implantation, the broken bone block is reset, and fracture recovery is facilitated; the head of the screw is provided with the threading hole, so that the tendon can be sutured by using the suture, the screw can be connected with the tendon while the bone block is reset, repeated operations are avoided, the fracture and tendon fracture are recovered while the screw is implanted once, and the burden caused by repeated use of the anchor can be reduced.
Drawings
FIG. 1 is a schematic perspective view of a threaded double-ended cannulated screw in one embodiment of the present invention;
FIG. 2 is a schematic elevational view of a threaded double-ended cannulated screw in one embodiment of the present invention;
fig. 3 is a schematic view showing an internal structure of a head portion of a nail according to an embodiment of the present invention.
In the figure: 1-a nail head; 11-first self-tapping threads; 12-incision plane; 13-threading holes; 14-a sink; 15-wire grooves; 2-a rod body; 21-a first through hole; 3-nailing tail part; 31-second self-tapping threads; 32-self-tapping grooves; 33-implantation incision; 4-suture.
Detailed Description
Examples
As shown in fig. 1-3, the present embodiment provides a threaded double-ended hollow screw, which is mainly used for fracture reduction and tendon fixation of bone-tendon combination, and has a hollow structure, so that a guide needle can conveniently pass through, and surgical operation is facilitated. Specifically, the screw comprises a screw head part 1, a rod body part 2 and a screw tail part 3, wherein the screw head part 1, the rod body part 2 and the screw tail part 3 are sequentially connected, and in order to ensure the strength of the screw, the screw head part 1, the rod body part 2 and the screw tail part 3 are integrally formed.
The surface of the nail head 1 is provided with a first self-tapping thread 11, the nail head 1 is provided with an incision plane 12, the incision plane 12 is provided with a threading hole 13 for threading out the suture 4, and the suture 4 is used for suturing tendons; the surface of the nail tail 3 is provided with a second self-tapping thread 31, and the tail end of the nail tail 3 is provided with an implantation notch 33.
The two ends of the screw are respectively provided with the first self-tapping thread 11 and the second self-tapping thread 31, and the design structure of double-head threads is adopted, so that the broken bone blocks can be stretched and broken bone blocks can be reset during implantation, and fracture recovery is facilitated; the nail head 1 is provided with the threading hole 13, so that the tendon is conveniently stitched by using the suture 4, the screw can be connected with the tendon while the bone block is reset, repeated operations are avoided, the fracture and tendon fracture are simultaneously recovered when the screw is implanted once, and the burden caused by the repeated use of the anchor can be reduced.
In this embodiment, the pitches of the first self-tapping thread 11 and the second self-tapping thread 31 are different, so that the screw can effectively stretch broken bone pieces, which is beneficial to fracture recovery.
As shown in fig. 1, as an alternative implementation of this embodiment, the incision plane 12 is provided with at least two threading holes 13, and two ends of the suture 4 respectively penetrate through the two threading holes 13 to suture tendons. The nail head 1 is provided with two incision planes 12 relatively, and every incision plane 12 all is equipped with two through wires holes 13, and two through wires holes 13 are worn out respectively at the both ends of suture 4 and stitch the tendon, and during specific use, can pass two through wires holes 13 in proper order with the one end of suture 4 and stitch the tendon again, can improve the operating convenience.
The surface of the rod body 2 is smooth, and the outer diameter of the rod body 2 is smaller than the maximum outer diameters of the first self-tapping thread 11 and the second self-tapping thread 31. The first self-tapping thread 11 and the second self-tapping thread 31 are connected with the bone block, the surface of the rod body part 2 is smooth, and the maximum outer diameters of the first self-tapping thread 11 and the second self-tapping thread 31 are larger than the outer diameter of the rod body part 2, so that the first self-tapping thread 11 and the second self-tapping thread 31 are connected with the bone block in a threaded mode.
As shown in fig. 3, the nail head 1 is provided with a sinking groove 14, the inner wall of the sinking groove 14 is provided with a wire groove 15, the wire groove 15 is communicated with the double-wire hole, the wire groove 15 is convenient for placing and penetrating out the suture 4, and the sinking groove 14 is convenient for screwing the screw. Preferably, the countersink 14 is hexagonal, cross-shaped or quincuncial, which can enable the screw to have a better screwing force when screwing in, and a stronger bearing force when screwing in the screw.
In this embodiment, the rod body 2 is provided with a first through hole 21 along the axial direction thereof, the tail portion 3 is provided with a second through hole along the axial direction thereof, and the countersink 14, the first through hole 21 and the second through hole are sequentially communicated and form a channel for the guide pin to move.
As shown in fig. 2, the nail tail 3 is provided with a self-tapping groove 32, the self-tapping groove 32 is spiral, the spiral direction of the self-tapping groove 32 is the same as that of the second self-tapping thread 31, and the self-tapping groove 32 can improve the self-tapping function and the operation effect in the screw implantation process.
The invention provides a double-ended hollow screw with a wire, which mainly comprises three sections of a screw head 1, a rod body 2 and a screw tail 3, wherein a first self-tapping thread 11 is arranged on the screw head 1, a notch plane 12 is formed at the upper part of the side surface of the screw head 1, two threading holes 13 are formed at the notch plane 12 and are used for inserting a suture 4, a sinking groove 14 (hexagonal, cross-shaped or quincuncial) is formed at the driving position of the screw head 1, and a wire groove 15 is formed in the inner wall of the sinking groove 14, so that the suture 4 can be conveniently placed and penetrated; the diameter of the rod body part 2 is smaller than the maximum diameter of the first self-tapping thread 11, and the surface of the rod body part 2 is unthreaded; the tail part 3 of the screw is provided with a second self-tapping thread 31, a self-tapping groove 32 is arranged on the second self-tapping thread, and an implantation notch 33 is arranged at the tail end of the tail part 3 of the screw for self-tapping reaming implantation of the screw; the screw is hollow as a whole, and the guide pin can pass through the screw. The invention adopts the double-thread design, and the double-thread adopts different thread pitches, so that the broken bone blocks can be stretched during implantation, the broken bone blocks are reset, and the fracture recovery is convenient; the nail head 1 is provided with the threading hole 13, the suture 4 is connected with the tendon when the bone block is reset, repeated operations are avoided, the fracture and tendon fracture are recovered when the screw is implanted once, and the burden caused by repeated use of the anchor is reduced.
In the description of the present invention, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be fixedly connected, detachably connected, or integrally formed; may be a mechanical or electrical connection; may be directly connected or indirectly connected through an intermediate medium, and may be in communication with the inside of two elements or in interaction with the two elements, the specific meaning of the terms being understood by those skilled in the art. Furthermore, the particular features, structures, etc. described in the examples are included in at least one embodiment and those of skill in the art may combine features of different embodiments without contradiction. The scope of the present invention is not limited to the above-described specific embodiments, and embodiments which can be suggested to those skilled in the art without inventive effort according to the basic technical concept of the present invention are all within the scope of the present invention.
Claims (10)
1. The double-head hollow screw with the thread is characterized by comprising a screw head part (1), a rod body part (2) and a screw tail part (3), wherein the screw head part (1), the rod body part (2) and the screw tail part (3) are sequentially connected, a first self-tapping thread (11) is arranged on the surface of the screw head part (1), a notch plane (12) is formed in the screw head part (1), and a threading hole (13) for threading a suture thread (4) is formed in the notch plane (12); the surface of the nail tail part (3) is provided with a second self-tapping thread (31), and the tail end of the nail tail part (3) is provided with an implantation incision (33).
2. The threaded double-ended cannulated screw according to claim 1, wherein the pitch of the first and second self-tapping threads (11, 31) is different.
3. The threaded double-ended hollow screw according to claim 1, characterized in that the tail (3) is provided with self-tapping grooves (32).
4. A threaded double-ended hollow screw according to claim 3, characterized in that the self-tapping groove (32) is helical, the helical direction of the self-tapping groove (32) being the same as the helical direction of the second self-tapping thread (31).
5. The threaded double-ended hollow screw according to claim 1, wherein the incision plane (12) is provided with at least two threading holes (13), and two ends of the suture (4) respectively penetrate through the two threading holes (13) to suture tendons.
6. The threaded double-ended hollow screw according to claim 1, characterized in that the surface of the shank (2) is smooth and the outer diameter of the shank (2) is smaller than the maximum outer diameters of the first self-tapping thread (11) and the second self-tapping thread (31).
7. The threaded double-ended hollow screw according to claim 1, characterized in that the nail head (1) is provided with a countersunk groove (14), the inner wall of the countersunk groove (14) is provided with a wire groove (15), and the wire groove (15) is communicated with the double-wire hole.
8. The threaded double-ended hollow screw according to claim 7, characterized in that said countersink (14) is hexagonal, cross-shaped or quincuncial.
9. The double-ended hollow screw with wire according to claim 7, wherein the rod body (2) is provided with a first through hole (21) along the axial direction of the rod body, the tail part (3) is provided with a second through hole along the axial direction of the rod body, and the countersink (14), the first through hole (21) and the second through hole are sequentially communicated and form a channel for the guide pin to move.
10. The threaded double-ended hollow screw according to claim 1, characterized in that the head (1), the shank (2) and the tail (3) are integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211679197.7A CN116138864A (en) | 2022-12-26 | 2022-12-26 | Double-head hollow screw with wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211679197.7A CN116138864A (en) | 2022-12-26 | 2022-12-26 | Double-head hollow screw with wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116138864A true CN116138864A (en) | 2023-05-23 |
Family
ID=86359260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211679197.7A Pending CN116138864A (en) | 2022-12-26 | 2022-12-26 | Double-head hollow screw with wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116138864A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86209722U (en) * | 1986-11-29 | 1987-12-05 | 无锡第四人民医院 | Pressure nail with threaded ends and its auxiliary appliances used for the treatment of thighbone and cervical vertebra fracture |
| CN201743761U (en) * | 2010-08-20 | 2011-02-16 | 中国人民解放军第二军医大学 | Absorbent double end thread compression screw |
| CN105852951A (en) * | 2016-05-04 | 2016-08-17 | 高嘉锴 | Hollow screw for restoring damaged ligaments or muscle tendons |
| US20160354074A1 (en) * | 2015-06-02 | 2016-12-08 | Stuart D. Miller | Orthopedic Screw with Suture Anchor and Multipurpose Connector |
| CN112043334A (en) * | 2020-08-28 | 2020-12-08 | 北京市春立正达医疗器械股份有限公司 | Hollow screw structure capable of connecting tendon ligament |
| CN215079119U (en) * | 2020-12-29 | 2021-12-10 | 苏州市康力骨科器械有限公司 | Non-absorbable suture anchor |
-
2022
- 2022-12-26 CN CN202211679197.7A patent/CN116138864A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86209722U (en) * | 1986-11-29 | 1987-12-05 | 无锡第四人民医院 | Pressure nail with threaded ends and its auxiliary appliances used for the treatment of thighbone and cervical vertebra fracture |
| CN201743761U (en) * | 2010-08-20 | 2011-02-16 | 中国人民解放军第二军医大学 | Absorbent double end thread compression screw |
| US20160354074A1 (en) * | 2015-06-02 | 2016-12-08 | Stuart D. Miller | Orthopedic Screw with Suture Anchor and Multipurpose Connector |
| CN105852951A (en) * | 2016-05-04 | 2016-08-17 | 高嘉锴 | Hollow screw for restoring damaged ligaments or muscle tendons |
| CN112043334A (en) * | 2020-08-28 | 2020-12-08 | 北京市春立正达医疗器械股份有限公司 | Hollow screw structure capable of connecting tendon ligament |
| CN215079119U (en) * | 2020-12-29 | 2021-12-10 | 苏州市康力骨科器械有限公司 | Non-absorbable suture anchor |
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Inventor after: Fang Zhi Inventor after: Ding Zhenxun Inventor after: Ma Bingchen Inventor before: Fang Zhi Inventor before: Ma Bingchen |
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