CN202665682U - Angled locking hollow screw for treatment of fracture - Google Patents
Angled locking hollow screw for treatment of fracture Download PDFInfo
- Publication number
- CN202665682U CN202665682U CN 201220275531 CN201220275531U CN202665682U CN 202665682 U CN202665682 U CN 202665682U CN 201220275531 CN201220275531 CN 201220275531 CN 201220275531 U CN201220275531 U CN 201220275531U CN 202665682 U CN202665682 U CN 202665682U
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- Prior art keywords
- screw
- screw body
- taper thread
- arranges
- fracture
- 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.)
- Expired - Lifetime
Links
- 206010017076 Fracture Diseases 0.000 title abstract description 21
- 208000010392 Bone Fractures Diseases 0.000 title abstract description 14
- 210000000988 bone and bone Anatomy 0.000 abstract description 5
- 210000003205 muscle Anatomy 0.000 abstract description 5
- 210000002436 femur neck Anatomy 0.000 description 5
- 239000007943 implant Substances 0.000 description 4
- 208000027418 Wounds and injury Diseases 0.000 description 3
- 208000007875 Femur Head Necrosis Diseases 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000002560 therapeutic procedure Methods 0.000 description 2
- 208000001132 Osteoporosis Diseases 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 108010048734 sclerotin Proteins 0.000 description 1
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- Surgical Instruments (AREA)
Abstract
The utility model belongs to the field of medical instruments, and particularly relates to an angled locking hollow screw for treatment of fracture. The angled locking hollow screw comprises a screw body and a locking screw, and is characterized in that the screw body is provided with an inclined taper thread hole, the head of the locking screw is provided with a taper thread consistent with the inclined taper thread hole of the screw body in terms of appearance and size, the screw body is fixed with the locking screw through the inclined taper thread hole in an internal and external threaded connection manner and form a certain angle for improving stability of products. During operation, the screw body of the angled locking hollow screw for treatment of fracture is implanted into the bone by the aid of a tool and then the locking screw is placed into the screw body by the aid of the tool through the taper thread hole so that stability is enhanced, and finally, the screw is connected with muscle by a suture line through a suture hole at the head of the screw. The angled locking hollow screw for treatment of fracture has the advantages of short operation time, safety and capability of relieving suffering of patients.
Description
Technical field
This utility model belongs to medical mechanical domain, specifically a kind of angled locking hollow screw for fractures.
Background technology
Fracture of femoral neck is common fracture, accounts for fracture 3.6%, is more common in the old people, and Therapeutic Method is many, if but malpractice can cause femur head necrosis.Press traditional therapy, the feasible non-operative treatment of fracture of femoral neck, but more reliable and safe stability will be arranged with interior fixing this fracture is because almost 100% embedding is drawn together fracture and all can be healed; And need not many pieces in the screw fixedly the time, can be shifted more than 15%.And the old people is because osteoporosis and self-healing ability are relatively poor, and its ratio obviously rises.In recent years, fracture of femoral neck is adopted operative treatment more, make as early as possible the reduction of the fracture, the strong fixing common recognition that become.And most scholars think, firm degree fixing in the spininess is the strongest, should be as first-selection, and the fixing common method that becomes in the world fracture of femoral neck at present of hollow screw.It has, and wound is little, operating time is short, amount of bleeding is few, and the patient easily accepts, and financial burden is lighter, its activity of energy early recovery, the advantage of minimizing bed rest time.But it also has following shortcoming simultaneously: femur head necrosis very easily occurs in the fracture of femoral neck for a mo(u)ld bottom half, needs again operation to change the head treatment.Loose because fracturing, fragile, the sclerotin stringer easily occurs and splits in hollow screw in the art, and loosening the withdrawing from of fixing screw can increase patient's misery because too early movable and activity on a large scale occurs, and has affected patient's rehabilitation progress.
Summary of the invention
The purpose of this utility model is in order to improve the stability of pinning after implantation of existing hollow screw, preventing its loosening withdrawing from, for the surgeon provide a kind of easy to operate, recover fast, be difficult for the angled locking hollow screw that is used for fractures to the health injury.
The technical scheme that this utility model adopts is:
A kind of angled locking hollow screw for fractures, comprise screw body, lock screw, it is characterized in that: screw body arranges oblique taper thread endoporus, the lock screw head arranges the taper thread with the oblique taper thread of screw body hole profile, consistent size, screw body is fixed together with the mode that lock screw adopts internal and external threads to connect by oblique taper thread hole, and have a certain degree, to improve stability.
Screw body head of the present utility model arranges the counter-sunk screw structure, reduces to implant and gives prominence to, and improves safety.The screw body inner surface arranges large circular port, guarantees the degree of holding of lock screw, and the axle head inner surface adopts hollow structure, and the most advanced and sophisticated abate structure that adopts of afterbody is avoided the probability of screw thread secondary punch, thereby reduced patient's operation risk.
Screw body head of the present utility model arranges the U-shaped through hole, guarantees to be connected with the reliable of instrument.And head arranges the suture hole, is used for connecting muscle.
This utility model lock screw afterbody arranges three 90 ° of uniform otch, implants easily and fast bone.
The angled locking hollow screw that is used for fractures that this utility model provides by the screw body implantable bone of instrument with the angled locking hollow screw after, relend assistant engineer's tool lock screw is put into screw body by oblique taper thread hole, screw body and lock screw combination have also formed certain angle, improved product stability, the suture hole by the screw body head utilizes stitching thread to be connected with muscle at last.Have the advantages such as wound is little, operation is simple, post-operative recovery is fast, can alleviate patient's misery.
Description of drawings
Fig. 1 is this utility model structural representation.
Fig. 2 is the A-A cutaway view of Fig. 1.
The specific embodiment
The below contrasts accompanying drawing, by embodiment this utility model is further described.
As shown in Figure 1 and Figure 2, a kind of angled locking hollow screw for fractures, comprise screw body 1, lock screw 2, it is characterized in that: screw body 1 arranges oblique taper thread hole 4, lock screw 2 arranges the taper thread with screw body 1 oblique taper thread hole 4 profiles, consistent size, screw body 1 is connected the mode that adopts internal and external threads to connect by oblique taper thread hole 4 and is fixed together with lock screw, and has a certain degree, to improve stability.
Screw body 1 head of the present utility model arranges counter-sunk screw structure 6, reduces to implant and gives prominence to, and improves safety.Screw body 1 head inner surface arranges large circular port 7, guarantees the degree of holding of lock screw, and the axle head inner surface adopts hollow structure, and the most advanced and sophisticated abate structure that adopts of afterbody is avoided the probability of screw thread secondary punch, thereby reduced patient's operation risk.
Screw body 1 head of the present utility model arranges the U-shaped through hole, guarantees to be connected with the reliable of instrument.And head arranges four circular stitchings holes 3, is used for connecting muscle.
This utility model lock screw afterbody arranges three 90 ° of uniform otch 5, implants easily and fast bone.
During operation, by instrument will screw body 1 implantable bone for the angled locking hollow screw of fractures after, relend assistant engineer's tool lock screw 2 is put into screw body 1 by oblique taper thread hole 4, screw body 1 and lock screw 2 combinations and shape have a certain degree, improved product stability, the circular stitchings hole 3 by screw body 1 head utilizes stitching thread to be connected with muscle at last.
Claims (4)
1. angled locking hollow screw that is used for fractures, comprise screw body, lock screw, it is characterized in that: screw body arranges oblique taper thread hole, the lock screw head arranges the taper thread with the oblique taper thread of screw body hole profile, consistent size, screw body is fixed together with the mode that lock screw adopts internal and external threads to connect by oblique taper thread hole, and angled.
2. the angled locking hollow screw for fractures according to claim 1, it is characterized in that: the screw body head arranges the counter-sunk screw structure, and inner surface arranges large circular port, and the axle head inner surface adopts hollow structure, the most advanced and sophisticated abate structure that adopts of afterbody.
3. the angled locking hollow screw for fractures according to claim 1 and 2, it is characterized in that: the screw body head arranges the U-shaped through hole, and head arranges the suture hole.
4. the angled locking hollow screw for fractures according to claim 1 and 2, it is characterized in that: the lock screw afterbody arranges three 90 ° of uniform otch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220275531 CN202665682U (en) | 2012-06-08 | 2012-06-08 | Angled locking hollow screw for treatment of fracture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220275531 CN202665682U (en) | 2012-06-08 | 2012-06-08 | Angled locking hollow screw for treatment of fracture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202665682U true CN202665682U (en) | 2013-01-16 |
Family
ID=47486626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220275531 Expired - Lifetime CN202665682U (en) | 2012-06-08 | 2012-06-08 | Angled locking hollow screw for treatment of fracture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202665682U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102715945A (en) * | 2012-06-08 | 2012-10-10 | 浙江科惠医疗器械有限公司 | Corner locking hollow screw for fracture treatment |
| US9662156B2 (en) | 2011-11-18 | 2017-05-30 | DePuy Synthes Products, Inc. | Femoral neck fracture implant |
| CN106725796A (en) * | 2016-12-16 | 2017-05-31 | 常州华森医疗器械有限公司 | PH anatomical plate |
-
2012
- 2012-06-08 CN CN 201220275531 patent/CN202665682U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9662156B2 (en) | 2011-11-18 | 2017-05-30 | DePuy Synthes Products, Inc. | Femoral neck fracture implant |
| US9999453B2 (en) | 2011-11-18 | 2018-06-19 | DePuy Synthes Products, Inc. | Femoral neck fracture implant |
| US10507048B2 (en) | 2011-11-18 | 2019-12-17 | DePuy Synthes Products, Inc. | Femoral neck fracture implant |
| CN102715945A (en) * | 2012-06-08 | 2012-10-10 | 浙江科惠医疗器械有限公司 | Corner locking hollow screw for fracture treatment |
| CN106725796A (en) * | 2016-12-16 | 2017-05-31 | 常州华森医疗器械有限公司 | PH anatomical plate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: ZHEJIANG CANWELL MEDICAL CO., LTD. Free format text: FORMER NAME: KEHUI MEDICAL EQUIPMENT CO., LTD., ZHEJIANG |
|
| CP03 | Change of name, title or address |
Address after: 321016 Zhejiang Province, Jinhua city Wucheng District Xianghua Street No. 466 Patentee after: Zhejiang Ke Hui Medical Treatment Equipment Co., Ltd Address before: 321016 Zhejiang city of Jinhua province Xian No. 466 South Street Zhejiang Kehui Medical Equipment Co Ltd Patentee before: Zhejiang Canwell Medical Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130116 |