CN215018771U - Ilium nail - Google Patents
Ilium nail Download PDFInfo
- Publication number
- CN215018771U CN215018771U CN202023343437.5U CN202023343437U CN215018771U CN 215018771 U CN215018771 U CN 215018771U CN 202023343437 U CN202023343437 U CN 202023343437U CN 215018771 U CN215018771 U CN 215018771U
- Authority
- CN
- China
- Prior art keywords
- nail
- nail body
- screw thread
- iliac
- phi
- 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 - Fee Related
Links
- 210000003692 ilium Anatomy 0.000 title claims abstract description 13
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 208000028389 Nerve injury Diseases 0.000 abstract description 5
- 230000008764 nerve damage Effects 0.000 abstract description 5
- 230000002792 vascular Effects 0.000 abstract description 4
- 230000006378 damage Effects 0.000 description 14
- 206010017076 Fracture Diseases 0.000 description 12
- 208000014674 injury Diseases 0.000 description 11
- 210000004197 pelvis Anatomy 0.000 description 11
- 208000010392 Bone Fractures Diseases 0.000 description 10
- 208000027418 Wounds and injury Diseases 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 9
- 206010034246 Pelvic fractures Diseases 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 206010002091 Anaesthesia Diseases 0.000 description 2
- 208000007356 Fracture Dislocation Diseases 0.000 description 2
- 230000037005 anaesthesia Effects 0.000 description 2
- 210000003484 anatomy Anatomy 0.000 description 2
- 210000004204 blood vessel Anatomy 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000000399 orthopedic effect Effects 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- ORILYTVJVMAKLC-UHFFFAOYSA-N Adamantane Natural products C1C(C2)CC3CC1CC2C3 ORILYTVJVMAKLC-UHFFFAOYSA-N 0.000 description 1
- 241000587161 Gomphocarpus Species 0.000 description 1
- 206010061213 Iatrogenic injury Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 208000002847 Surgical Wound Diseases 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000003099 femoral nerve Anatomy 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 210000003041 ligament Anatomy 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 208000037890 multiple organ injury Diseases 0.000 description 1
- 210000005036 nerve Anatomy 0.000 description 1
- 230000001537 neural effect Effects 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000002611 ovarian Effects 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 210000004267 spermatic cord Anatomy 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
- 230000008733 trauma Effects 0.000 description 1
- 230000000472 traumatic effect Effects 0.000 description 1
- 210000000689 upper leg Anatomy 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Landscapes
- Prostheses (AREA)
Abstract
The utility model relates to an ilium nail, include the nail body that sets up along an axial extension, this nail body is front end and rear end respectively along its axial both ends, and wherein the front end of this nail body is for having the screw thread section of external screw thread, and the rear end of this nail body has the nail cap that sets up with this nail body integrated into one piece, the linkage segment between screw thread section and the nail cap is the smooth polished rod section of outer wall, the blunt shape structure of tip for not having the cutting edge of nail body front end, external screw thread on the screw thread section is followed the periphery wall of nail body front end is laid towards rear end direction spiral, and the initial position of this external screw thread is located the blunt shape structure of nail body front end to solve current percutaneous hollow screw and easily cause the problem of vascular nerve damage in the art.
Description
Technical Field
The utility model relates to the field of medical equipment, specifically relate to an ilium nail.
Background
Pelvic fracture caused by high-energy injury mechanisms (traffic injuries, high falling and the like) is mostly accompanied by multi-organ functional injury, and the fatality rate and the disability rate are high. The routine treatment process of the pelvic fracture comprises the following steps: firstly, resuscitating in emergency and rescuing life; controlling bleeding; thirdly, treating the merged injuries; resetting the fracture, temporarily stabilizing and finally resetting. However, when the patient needs to perform the pelvic fracture surgery for stable vital signs, the conventional treatment scheme is incision reduction internal fixation, and excessive surgery exposure with different degrees is often required for obtaining the ideal internal fixation effect. The patient is inevitably suffered from huge iatrogenic injuries including the known nerve injury, the blood vessel injury, the organ injury, the postoperative extensive infection and the like.
In recent years, with the continuous and deep research on pelvic anatomy and biomechanics, based on injury control and accelerated rehabilitation theory, the minimally invasive treatment concept for pelvic fracture becomes a hot point of research in the field of traumatic orthopedics and is gradually developed in large-scale medical institutions at home and abroad. The pelvis front ring and rear ring minimally invasive internal fixation based on the multichannel screw fixation technology to be developed is taken as the mainstream technology of pelvis minimally invasive treatment, the acceptance of orthopedics doctors in home and abroad known hospitals is obtained, particularly, the pelvis front ring and rear ring minimally invasive internal fixation based on the multichannel screw fixation technology has percutaneous minimally invasive access and is similar to steel plate screws but far stronger than the fixation strength of an external fixing frame, a brand new minimally invasive treatment scheme which is safer, has smaller injury and completely avoids secondary hitting after surgical incision can be provided for patients with pelvis fracture, particularly patients with combined multiple organ injuries and critical weakness, and accordingly, the early recovery of the patients is promoted.
The concept of the pelvis fracture multi-channel screw fixing technology is that based on the special irregular natural anatomical form of pelvis, the designed bone safety channel for inserting the screw is designed by combining the biomechanical characteristics and fracture typing, and then the strong reduction and fixation of fracture are obtained by inserting the screw. As a mainstream technology for minimally invasive fixation of fracture dislocation of anterior ring and posterior ring of pelvis, the minimally invasive fixation is currently and widely applied in large and well-known hospitals at home and abroad. Common channel screw systems include anterior and posterior pelvic minimally invasive fixation and anterior post, LC-2 channel screw fixation based on the iliac screw rod system. The former are reported by professors Vaidya, adam starr and t. Based on the concept of injury control and accelerated rehabilitation, the pelvis fracture multichannel screw fixing technology does not excessively pursue anatomical reduction of fracture dislocation, but acquires ideal functional reduction under the support of pelvis biomechanics research big data, so the maximum characteristic is wide adaptation diseases, the anterior ring fixing technology is almost suitable for all cases of unstable anterior rings (including Young & Burgess typing APC I-III; LC I-III; VS and CM) of combined pubic ramus fracture, and the posterior ring fixing technology is suitable for all types of pelvic posterior ring injuries (Tile C1-3) including sacroiliac dislocation and sacral fracture. In addition, LC-2 channel screws are a fixation technique specific to LC type ii crescentic iliac fractures, and anterior column channel screws are a fixation technique for suprapubic fractures in all types of pelvic fractures. In conclusion, the full minimally invasive treatment of pelvic fractures can be basically realized theoretically by the multichannel screw fixation technology.
Although the percutaneous hollow screw has small trauma, due to the fact that the three-edged groove of the traditional hollow nail head is too sharp, the incision is small, the visual field is limited, and the like, the inner implant not only can generate pressure on the femur, spermatic cord or ovarian ligament, but also can cause permanent damage to femoral nerve, lateral femoral cutaneous nerve, and the like. In addition, percutaneous screw fixation requires high technical requirements, long learning curves, and requires a deep understanding of the local anatomy, making it difficult for many physicians to master.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an ilium nail to solve the problem that the current percutaneous hollow screw easily causes vascular nerve damage in the art.
The specific scheme is as follows:
the utility model provides an ilium nail, includes the nail body that sets up along an axial extension, and this nail body is front end and rear end respectively along its axial both ends, and wherein the front end of this nail body is the screw thread section for having the external screw thread, and the rear end of this nail body has the nail cap that sets up with this nail body integrated into one piece, the linkage segment between screw thread section and the nail cap is the smooth polished rod section of outer wall, the tip of nail body front end is the blunt shape structure that does not have the cutting edge, external screw thread edge in the screw thread section the periphery wall of nail body front end is followed to rear end direction spiral and is laid, and the initial department of this external screw thread is located the blunt shape structure of nail body front end.
Furthermore, the blunt structure on the front end of the nail body is a round table, the outer diameter of the round table is gradually increased from the front end to the rear end, and the maximum outer diameter of the round table is not more than the maximum bottom diameter of the external thread.
Furthermore, the starting position of the external thread is positioned at the intersection of the free end surface of the circular truncated cone and the peripheral wall.
Furthermore, the external thread is provided with a first crest diameter phi 1 positioned at the front end of the nail body, a second crest diameter phi 2 positioned at the rear end and a third crest diameter phi 3 positioned between the first crest diameter phi 1 and the second crest diameter phi 2, wherein phi 1 is less than phi 3 and phi 2 is less than phi 3.
Furthermore, the nail body is also provided with a through hole which penetrates through the nail body along the axial direction of the nail body.
Furthermore, an inner hexagonal screw hole which is coaxial with the nail body is arranged on the nail cap.
Further, the length of the external thread on the nail body accounts for 1/3-2/3 of the total length of the nail body.
The utility model provides an ilium nail compares with prior art has following advantage: the utility model provides a front end of ilium nail is the blunt structure of no cutting edge, therefore this ilium nail can effectively reduce the neural damage of blood vessel in the art at the in-process of implanting to make primary and secondary damage obtain maximum control, shortened operation and anesthesia time generally, reduced the operation risk, can realize the minimal access therapy of pelvis fracture, make things convenient for the operator to perform the operation.
Drawings
Fig. 1 shows a schematic view of an iliac nail.
Fig. 2 shows a schematic cross-sectional view of an iliac nail.
Fig. 3 shows an enlarged view at a in fig. 1.
Detailed Description
To further illustrate the embodiments, the present invention provides the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the embodiments. With these references, one of ordinary skill in the art will appreciate other possible embodiments and advantages of the present invention. Elements in the figures are not drawn to scale and like reference numerals are generally used to indicate like elements.
The present invention will now be further described with reference to the accompanying drawings and detailed description.
As shown in fig. 1-3, the utility model provides an ilium nail, include along the nail body 1 of an axial extension setting, this nail body 1 is front end and rear end respectively along its axial both ends, and wherein the front end of this nail body 1 is for having the screw thread section 11 of external screw thread 110, and the rear end of this nail body 1 is for the nut 12 with this nail body 1 integrated into one piece setting, and the linkage segment between screw thread section 11 and the nut 12 is the smooth polished rod section 13 of outer wall. The nail body 1 is also provided with a through hole 14 which penetrates through the nail body 1 along the axial direction of the nail body, so that the iliac nail can be pre-positioned through a kirschner wire in an operation, and the fixation of the iliac nail in the operation is facilitated. The nail body 1 is made of titanium alloy materials and has high strength and light weight.
The tip of the 1 front end of the nail body is blunt structure 15 for not having the cutting edge, external screw thread 110 on the screw thread section 11 is laid along the periphery wall of the 1 front end of the nail body to the rear end direction spiral, and the starting point of this external screw thread 110 is located the blunt structure 15 of the 1 front end of the nail body, because the front end of this ilium nail is blunt structure for not having the cutting edge, therefore this ilium nail can effectively reduce the vascular nerve damage in the art at the in-process of implanting, and make primary and secondary damage obtain maximum control, generally shortened operation and anesthesia time, the operation risk has been reduced, the minimally invasive treatment of pelvis fracture has been realized, make things convenient for the operator to carry out the operation.
In this embodiment, the blunt structure 15 at the front end of the nail body 1 is a circular truncated cone, the outer diameter of the circular truncated cone gradually increases from the front end to the rear end, and the maximum outer diameter of the circular truncated cone does not exceed the maximum bottom diameter of the external thread 110, i.e., the maximum height of the peripheral wall of the circular truncated cone does not exceed the maximum tooth bottom of the external thread, so that the front end of the nail body 1 is of a substantially tapered structure, and the insertion of the iliac nail in the operation is facilitated.
In this embodiment, it is preferable that the start of the external thread 110 is located at the intersection of the free end surface of the circular truncated cone and the peripheral wall, so as to facilitate the screwing-in of the iliac nail in the operation.
In the embodiment, the external thread 110 has a first crest diameter phi 1 at the front end of the nail body, a second crest diameter phi 2 at the rear end and a third crest diameter phi 3 between the first crest diameter phi 1 and the second crest diameter phi 2, wherein phi 1 is less than phi 3 and less than phi 2, i.e. the crest diameter of the external thread at the front end of the nail body gradually increases from the front end to the rear end to form a generally tapered structure, so as to facilitate the insertion of the iliac nail in the operation.
In the embodiment, the nail cap 12 is provided with an inner hexagonal screw hole 121 which is coaxially arranged with the nail body 1, so that the iliac nail can be conveniently used by adopting a corresponding tool in the operation.
In the embodiment, the length of the external thread 110 on the nail body 1 is 1/3-2/3 of the total length of the nail body, so that the iliac nail can have better locking capability and can also better reduce vascular nerve injury in operation.
While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (7)
1. The utility model provides an ilium nail, includes the nail body that sets up along an axial extension, and this nail body is front end and rear end respectively along its axial both ends, and wherein the front end of this nail body is the screw thread section that has the external screw thread, and the rear end of this nail body has the nail cap that sets up with this nail body integrated into one piece, the linkage segment between screw thread section and the nail cap is the smooth polished rod section of outer wall, its characterized in that: the end part of the front end of the nail body is of a blunt structure without a cutting edge, the external threads on the thread section are spirally arranged along the peripheral wall of the front end of the nail body towards the rear end direction, and the starting position of the external threads is positioned on the blunt structure of the front end of the nail body.
2. The iliac nail of claim 1, wherein: the blunt structure on the end of the front end of the nail body is a round table, the outer diameter of the round table is gradually increased from the front end to the rear end, and the maximum outer diameter of the round table is not more than the maximum bottom diameter of the external thread.
3. The iliac nail of claim 2, wherein: the starting position of the external thread is positioned at the intersection of the free end surface and the peripheral wall of the circular truncated cone.
4. The iliac nail of claim 2, wherein: the external thread is provided with a first top diameter phi 1 positioned at the front end of the nail body, a second top diameter phi 2 positioned at the rear end and a third top diameter phi 3 positioned between the first top diameter phi 1 and the second top diameter phi 2, wherein phi 1 is more than phi 3 and less than phi 2.
5. The iliac nail of claim 1, wherein: the nail body is also provided with a through hole which penetrates through the nail body along the axial direction of the nail body.
6. The iliac nail of claim 1, wherein: the nail cap is provided with an inner hexagonal screw hole which is coaxial with the nail body.
7. The iliac nail of claim 1, wherein: the length of the external thread on the nail body accounts for 1/3-2/3 of the total length of the nail body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023343437.5U CN215018771U (en) | 2020-12-31 | 2020-12-31 | Ilium nail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023343437.5U CN215018771U (en) | 2020-12-31 | 2020-12-31 | Ilium nail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215018771U true CN215018771U (en) | 2021-12-07 |
Family
ID=79224467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023343437.5U Expired - Fee Related CN215018771U (en) | 2020-12-31 | 2020-12-31 | Ilium nail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215018771U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112826580A (en) * | 2020-12-31 | 2021-05-25 | 刘华水 | Ilium nail |
-
2020
- 2020-12-31 CN CN202023343437.5U patent/CN215018771U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112826580A (en) * | 2020-12-31 | 2021-05-25 | 刘华水 | Ilium nail |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9498268B2 (en) | Devices, systems, and methods for acetabulum repair | |
| US20140172024A1 (en) | Minimal incision removable bone screw, driver, and method of use | |
| CN1798527A (en) | System and method for minimally invasive posterior fixation | |
| CN101147693A (en) | Percutaneous cervical arc root screw internal fixing system | |
| CN215018771U (en) | Ilium nail | |
| CN105213000B (en) | The fixed system for the treatment of fracture of the tibial plateau | |
| CN202843773U (en) | Sacrum primary and secondary hollow forcing screw | |
| US20180206896A1 (en) | Pedicle screw with quadruple screw thread | |
| CN112826580A (en) | Ilium nail | |
| CN204072300U (en) | A kind of bone screw | |
| CN101953712B (en) | Semi-self-locking acetabulum posterior wall and posterior column anatomical plate | |
| CN208799305U (en) | Inner fixing device for intertrochanteric fracture | |
| CN209966541U (en) | Working sleeve capable of replacing guide pin in minimally invasive screw fixation operation of pelvis and acetabulum | |
| CN205126396U (en) | Ilium bone screw | |
| RU2706140C1 (en) | Cannulated screw for minimally invasive osteosynthesis of unstable pelvic ring injuries | |
| CN210990663U (en) | Novel steel plate screw internal fixation device for sacroiliac joint | |
| CN211583439U (en) | Novel anterior cervical fixing plate | |
| CN212326542U (en) | Femoral neck fracture fixing device | |
| CN209966539U (en) | Fine adjustment working sleeve for establishing minimally invasive screw channel around pelvis and acetabulum | |
| CN213372403U (en) | Double-thread type rear-crossing ligament fixer | |
| CN218128709U (en) | Auxiliary device for implanting vertebral pedicle screws of vertebral column | |
| CN205795786U (en) | Adjustable intervertebral fusion device | |
| CN110123434A (en) | The orthopedic internal fixation system of children's backbone guiding growth and spine correcting method | |
| CN217907949U (en) | Hollow guiding sacral 1 screw anchored with articular surface and cortex for spinal column | |
| CN213697157U (en) | 3D prints porous titanium alloy thighbone neck forcing screw and supporting equipment thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211207 |