CN113057726A - Spanner is controlled to intramedullary nail tail nail - Google Patents
Spanner is controlled to intramedullary nail tail nail Download PDFInfo
- Publication number
- CN113057726A CN113057726A CN202110302993.8A CN202110302993A CN113057726A CN 113057726 A CN113057726 A CN 113057726A CN 202110302993 A CN202110302993 A CN 202110302993A CN 113057726 A CN113057726 A CN 113057726A
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- China
- Prior art keywords
- tail
- nail
- wrench
- hollow hexagonal
- hexagonal wrench
- 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
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 230000002093 peripheral effect Effects 0.000 claims description 9
- 208000008924 Femoral Fractures Diseases 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 210000000988 bone and bone Anatomy 0.000 description 2
- 208000010392 Bone Fractures Diseases 0.000 description 1
- 206010017076 Fracture Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000004872 soft tissue Anatomy 0.000 description 1
- 239000007787 solid Substances 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
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/8875—Screwdrivers, spanners or wrenches
-
- 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
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/92—Impactors or extractors, e.g. for removing intramedullary devices
- A61B17/921—Impactors or extractors, e.g. for removing intramedullary devices for intramedullary devices
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Surgery (AREA)
- Biomedical Technology (AREA)
- Engineering & Computer Science (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Heart & Thoracic Surgery (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 an intramedullary nail tail nail holding wrench, which comprises a hollow hexagonal wrench, a tail nail thread guide pin and a handle, wherein a central channel penetrating through the whole hollow hexagonal wrench is axially arranged in the hollow hexagonal wrench, and the central channel is used for placing the tail nail thread guide pin and combining the hollow hexagonal wrench and the tail nail thread guide pin together; the handle is sleeved outside the tail end of the hollow hexagonal wrench, is matched with the hollow hexagonal wrench and is used for being held by a hand when the tail nail is driven. This spanner combines hexagonal spanner and tail nail screw thread guide pin as an organic whole, compares with the apparatus of traditional intramedullary nail tail nail, has reduced the quantity of apparatus, and an apparatus can just satisfy the demand of operation completely, no longer need be equipped with other apparatus for the tail nail, and the operation is stable convenient, the operation in the art of being convenient for.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a wrench for controlling an intramedullary nail tail nail.
Background
Along with the development of science and technology, the femoral fracture treatment operation technology adopts the intramedullary nail to treat femoral fracture more and more widely, the intramedullary nail has unique advantages in the biological anatomical mechanical property, the stability of fracture broken end reduction is enhanced by the internal fixation mode, and a solid foundation is laid for the early rehabilitation of patients. In the operation, firstly, the main nail is implanted into a femoral medullary cavity, after the locking of the near-end spiral blade and the locking of the far-end locking nail are completed, in order to prevent soft tissues and bone from growing into the tail part of the main nail, the tail nail is screwed into the near end of the main nail, and finally, the whole operation is completed by suturing, and when the bone is healed to a certain degree, whether the intramedullary nail is taken out or not is considered. The in-process of implanting and taking out at the tail nail, need use the spanner and the drive spanner of controlling of tail nail, implant the tail nail in-process, place the tail nail with controlling the spanner earlier and place main nail near-end screw hole department, take out and control the spanner, use drive spanner again to twist into the tail nail main nail afterbody screw hole. In the tail nail taking-out process, the driving wrench is firstly used for unscrewing the tail nail, and then the holding wrench is used for taking out the tail nail from the body, so that the tail nail can be implanted and taken out.
In the operation of treating femoral fracture by intramedullary nail in the prior art, the operation instruments are various, a set of complete intramedullary nail operation instruments can be dozens or even hundreds of instruments, and an operator needs to replace a plurality of instruments in the operation, thereby not only increasing the operation steps of the operator, but also increasing the cost of manufacturers. When the intramedullary nail tail nail is implanted, the needed instruments comprise a driving spanner and a holding spanner, the holding spanner is used for placing the tail nail at the tail part of the main nail, and then the driving spanner is used for screwing the tail nail; use the drive spanner earlier when taking out the tail nail to unscrew the tail nail, reuse is held the spanner and is taken out extrasomatic, in addition, the instrument of taking out of tail nail still can be equipped with the guide pin of taking the hook of a tail nail, guarantees to use the guide pin of taking the hook to assist when holding down and can not taking out the tail nail and takes out, and the instrument of being equipped with for the tail nail has just reached threely this moment, has increased the quantity of instrument, has also increased the instrument cost, has more increased the operation of art person.
Disclosure of Invention
The invention aims to provide a wrench for holding a tail nail of an intramedullary nail, and solves the technical problems of how to meet the requirements of tail nail implantation or extraction by using only one instrument.
The invention aims to solve the defects of the prior art and provides a wrench for holding a tail nail of an intramedullary nail, which comprises a hollow hexagonal wrench, a tail nail thread guide pin and a handle, wherein a central channel penetrating through the whole hollow hexagonal wrench is axially arranged in the hollow hexagonal wrench, and is used for placing the tail nail thread guide pin and combining the hollow hexagonal wrench and the tail nail thread guide pin; the handle is sleeved outside the tail end of the hollow hexagonal wrench, is matched with the hollow hexagonal wrench and is used for being held by a hand when the tail nail is driven.
The front end of the hollow hexagonal wrench is hexagonal and used for driving the tail nail to be screwed and unscrewed.
A first locking threaded hole and a second locking threaded hole are formed in the outer peripheral wall of the tail end of the hollow hexagonal wrench, are perpendicular to the axial direction of the hollow hexagonal wrench, and extend to the central channel from the outer peripheral wall of the tail end of the hollow hexagonal wrench; the first locking threaded hole and the second locking threaded hole are used for allowing a first locking screw and a second locking screw to be inserted and screwed down respectively, so that the tail screw thread guide pin is fixed in the central channel, and the hollow hexagonal wrench and the tail screw thread guide pin are combined together.
The central axes of the first locking threaded hole and the second locking threaded hole are positioned on the same straight line.
The front end of the tail nail thread guide pin is provided with a thread part, and the thread part can be screwed into a thread hole in the center of the tail nail to hold the tail nail.
The rear end of the tail nail thread guide pin is provided with a hexagonal column for an operator to manually drive a thread part at the front end to be screwed into a thread hole at the center of the tail nail.
The tail end of center channel is provided with the holding tank, and this holding tank is used for holding hexagonal column.
The handle center through hole is formed in the center of the handle along the axial direction of the handle, and the handle is sleeved outside the tail end of the hollow hexagonal wrench through the handle center through hole.
The outer peripheral wall of the handle is provided with lower concave parts and raised ribs which are alternately arranged at intervals.
Advantageous effects
Compared with the prior art, the invention has the beneficial effects that:
the intramedullary nail tail nail holding wrench integrates the hexagonal wrench and the tail nail screw thread guide pin, compared with the traditional intramedullary nail tail nail instrument, the number of instruments is reduced, one instrument can completely meet the requirements of surgical operation, other instruments do not need to be equipped for the tail nail, the operation is stable and convenient, an operator can firmly hold the tail nail by only screwing the screw thread guide pin into the tail nail central screw hole after placing the hexagonal in the tail nail hexagonal hole, the tail nail can not rotate and can not fall off due to the screw connection and the limitation of the hexagonal wrench, and the operator only needs to hold one instrument by hand without replacing or holding other instruments, so the operation in the operation is convenient.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
Fig. 1 is a front view of the hexagonal hollow wrench of the present invention.
Fig. 2 is a sectional view of the hexagonal hollow wrench in the direction of a-a according to the present invention.
FIG. 3 is a schematic structural diagram of the tail screw thread guide pin according to the present invention.
Fig. 4 is a schematic view of the structure of the handle of the present invention.
Fig. 5 is a schematic view of the overall structure of the intramedullary nail tail holding wrench of the present invention.
Detailed Description
The present invention is described in more detail below to facilitate an understanding of the present invention.
As shown in fig. 1 to 5, the intramedullary nail tail holding wrench of the present invention includes a hollow hexagonal wrench 1, a tail screw thread guide pin 2 and a handle 3, wherein a central channel 12 penetrating through the hollow hexagonal wrench is axially disposed inside the hollow hexagonal wrench 1, and is used for placing the tail screw thread guide pin and combining the hollow hexagonal wrench and the tail screw thread guide pin together; the handle 3 is sleeved outside the tail end of the hollow hexagonal wrench, is matched with the hollow hexagonal wrench and is used for being held by a hand when the tail nail is driven.
The front end of the hollow hexagonal wrench 1 is hexagonal 11 and is used for driving the tail nail to be screwed and unscrewed.
A first locking threaded hole 13 and a second locking threaded hole 14 are formed in the outer peripheral wall of the tail end of the hollow hexagonal wrench 1, the first locking threaded hole 13 and the second locking threaded hole 14 are arranged perpendicular to the axial direction of the hollow hexagonal wrench 1, and extend from the outer peripheral wall of the tail end of the hollow hexagonal wrench 1 to a central channel 12; the first locking threaded hole 13 and the second locking threaded hole 14 are respectively used for inserting and screwing a first locking screw and a second locking screw, so that the tail screw thread guide pin is fixed in the central channel 12, and the hollow hexagonal wrench and the tail screw thread guide pin are combined together.
The central axes of the first locking threaded hole 13 and the second locking threaded hole 14 are located on the same straight line.
The front end of the tail nail threaded guide needle 2 is provided with a threaded part 21, and the threaded part 21 can be screwed into a threaded hole in the center of the tail nail to hold the tail nail.
The rear end of the tail nail threaded guide pin 2 is a hexagonal column 22 similar to a nut, and the threaded part of the front end is manually driven by an operator to be screwed into the threaded hole in the center of the tail nail.
The rear end of the central channel 12 is provided with a receiving groove 15 for receiving the hexagonal column 22.
The center of the handle is provided with a handle center through hole 31 along the axial direction of the handle, and the handle is sleeved outside the tail end of the hollow hexagonal wrench through the handle center through hole.
The peripheral wall of the handle is provided with concave parts 32 and convex ribs 33 which are alternately arranged at intervals.
The recessed portion 32 and the raised rib 33 are used to increase friction and facilitate handling during driving of the tail nail.
The integral characteristic structure of the intramedullary nail tail nail holding wrench is shown in figure 5, the hollow hexagonal wrench and the tail nail thread guide needle are combined into a whole, the operation requirement of an operation can be met only by one instrument in the operation, the use of an operator is facilitated, and the number of instruments is reduced.
The foregoing describes preferred embodiments of the present invention, but is not intended to limit the invention thereto. Modifications and variations of the embodiments disclosed herein may be made by those skilled in the art without departing from the scope and spirit of the invention.
Claims (9)
1. The intramedullary nail tail nail holding wrench is characterized by comprising a hollow hexagonal wrench, a tail nail thread guide pin and a handle, wherein a central channel penetrating through the whole hollow hexagonal wrench is axially arranged in the hollow hexagonal wrench, and is used for placing the tail nail thread guide pin and combining the hollow hexagonal wrench and the tail nail thread guide pin together; the handle is sleeved outside the tail end of the hollow hexagonal wrench, is matched with the hollow hexagonal wrench and is used for being held by a hand when the tail nail is driven.
2. The intramedullary nail tail holding wrench as claimed in claim 1, wherein the front end of the hollow hexagonal wrench is hexagonal for driving the tightening and loosening of the tail nail.
3. The intramedullary nail holding wrench of claim 1, wherein a first locking threaded hole and a second locking threaded hole are formed in a peripheral wall of the tail end of the hollow hexagonal wrench, and are perpendicular to an axial direction of the hollow hexagonal wrench and extend from the peripheral wall of the tail end of the hollow hexagonal wrench to the central passage; the first locking threaded hole and the second locking threaded hole are used for allowing a first locking screw and a second locking screw to be inserted and screwed down respectively, so that the tail screw thread guide pin is fixed in the central channel, and the hollow hexagonal wrench and the tail screw thread guide pin are combined together.
4. The intramedullary nail holding wrench of claim 3, wherein the central axes of the first and second locking threaded holes are aligned on a same straight line.
5. The intramedullary nail tail nail holding wrench as claimed in claim 1, wherein the front end of the tail nail thread guide pin is provided with a thread part which can be screwed into a thread hole in the center of the tail nail to hold the tail nail.
6. The intramedullary nail tail nail holding wrench as claimed in claim 1, wherein the rear end of the tail nail thread guide pin is provided with a hexagonal column for the operator to manually drive the threaded portion of the front end to screw into the threaded hole in the center of the tail nail.
7. The key as claimed in claim 6, wherein the rear end of the central channel is provided with a receiving groove for receiving the hexagonal post.
8. The intramedullary nail holding wrench of claim 1, wherein the handle is provided with a central handle through hole along an axial direction of the handle, and the handle is sleeved outside the tail end of the hollow hexagonal wrench through the central handle through hole.
9. The intramedullary nail holding wrench of claim 1, wherein the handle has an outer peripheral wall with alternating spaced apart recesses and ribs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110302993.8A CN113057726A (en) | 2021-03-22 | 2021-03-22 | Spanner is controlled to intramedullary nail tail nail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110302993.8A CN113057726A (en) | 2021-03-22 | 2021-03-22 | Spanner is controlled to intramedullary nail tail nail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113057726A true CN113057726A (en) | 2021-07-02 |
Family
ID=76563367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110302993.8A Pending CN113057726A (en) | 2021-03-22 | 2021-03-22 | Spanner is controlled to intramedullary nail tail nail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113057726A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206198035U (en) * | 2016-07-27 | 2017-05-31 | 西南医科大学附属中医医院 | A kind of intramedullary nail mounting auxiliary |
| CN111329572A (en) * | 2020-03-10 | 2020-06-26 | 河北瑞鹤医疗器械有限公司 | Pedicle screw screwing wrench |
-
2021
- 2021-03-22 CN CN202110302993.8A patent/CN113057726A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206198035U (en) * | 2016-07-27 | 2017-05-31 | 西南医科大学附属中医医院 | A kind of intramedullary nail mounting auxiliary |
| CN111329572A (en) * | 2020-03-10 | 2020-06-26 | 河北瑞鹤医疗器械有限公司 | Pedicle screw screwing wrench |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210702 |
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| RJ01 | Rejection of invention patent application after publication |