CN113017817A - Intramedullary nail interlocking nail implantation method and device - Google Patents
Intramedullary nail interlocking nail implantation method and device Download PDFInfo
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- CN113017817A CN113017817A CN202110236377.7A CN202110236377A CN113017817A CN 113017817 A CN113017817 A CN 113017817A CN 202110236377 A CN202110236377 A CN 202110236377A CN 113017817 A CN113017817 A CN 113017817A
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- 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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- 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
- A61B17/72—Intramedullary pins, nails or other devices
- A61B17/7233—Intramedullary pins, nails or other devices with special means of locking the nail to the bone
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Abstract
The invention relates to an intramedullary nail interlocking nail implantation method and a device, wherein the intramedullary nail interlocking nail implantation method comprises the following steps: acquiring a virtual model, wherein the virtual model is consistent with a target object; acquiring the position of a target object, and enabling the virtual model to be basically superposed with the target object; acquiring target object positioning information to enable the virtual model to be accurately superposed with the target object, so that visualization of a corresponding access channel can be realized, and the placing of the interlocking nail can be directly operated by means of vision; the intramedullary nail interlocking nail implanting device comprises a positioning handle and a virtual imaging device; the positioning handle is fixed with the intramedullary nail, and the other end of the positioning handle is provided with a positioning matching device; the virtual imaging device is a head-wearing virtual imaging display and can display the positions of the positioning handle and the intramedullary nail, and a database of the virtual imaging device is provided with a plurality of virtual combination models of the positioning handle and the intramedullary nail for calling during operation, can be matched with the intramedullary nail in reality with high precision, and is convenient for the entry positioning of the interlocking nail.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to an intramedullary nail interlocking nail implanting method and device.
Background
At present, intramedullary nails are clinically common internal fixation devices for fixing long dry bone fractures, and the safe and accurate implantation of interlocking nails of the intramedullary nails is the key for ensuring the success of the operation. The former method mainly adopts a rigid positioning device externally connected with the main nail of the intramedullary nail to position the nail path implanted by the interlocking nail at the far end and the near end, and the method generates the failure of the positioning of the interlocking nail position because the main nail and the externally connected positioning device have more connecting joints and the relative position may change during the operation. Once the traditional positioning method fails in nail placement, an operator can only position the interlocking nail holes by means of repeated fluoroscopy of the X-ray fluoroscopy machine, the operation time is infinitely prolonged, the radiation dose is increased, and radiation injury is caused to a patient and the operator. If the interlocking nail is implanted in failure or is not locked in the main nail of the intramedullary nail, the firmness of the fixation of the intramedullary nail is seriously influenced, and even the fracture is displaced again, the deformed fracture is healed or is not healed and other complications are caused.
The Chinese patent application: CN208677556U discloses a tibia intramedullary nail aiming device, which belongs to the field of surgical instruments matched with orthopedic implants and aims to provide a tibia intramedullary nail aiming device convenient for aligning a locking nail with a locking hole on an intramedullary nail so as to solve the problem that the intramedullary nail is difficult to fix; the intramedullary nail sighting device comprises a near-end sighting frame and a far-end sighting frame, wherein the far-end sighting frame comprises a sighting rod and a transverse bracket, and the sighting rod is connected with the handle through a conversion bracket; the near-end aiming frame comprises a double-horizontal-nail aiming frame and a cross-nail aiming frame, the double-horizontal-nail aiming frame is fixedly connected with the handle through a conversion support, and the cross-nail aiming frame is fixedly connected with the handle. This application is applicable to aiming of shin bone intramedullary nail, but it still provides traditional mechanical positioning mode, complex operation, and is not visual, and is inefficient.
In view of the above, there is a need for a method and a device for implanting an interlocking intramedullary nail, which have high stability, good safety, and high positioning accuracy, and can realize visualization of a corresponding approach channel during fixation of the intramedullary nail, and can be directly operated by vision.
Disclosure of Invention
The invention aims to provide the intramedullary nail interlocking nail implantation method which has high stability and good safety, can realize the visualization of a corresponding access channel when an intramedullary nail is fixed, can be directly operated by vision and has high positioning precision.
In order to achieve the purpose, the invention adopts the technical scheme that:
an intramedullary nail interlocking nail implantation method, comprising: acquiring a virtual model, wherein the virtual model is consistent with a target object; acquiring the position of a target object, and enabling the virtual model to be basically superposed with the target object; and acquiring the positioning information of the target object to ensure that the virtual model and the target object are accurately superposed.
As a preferred technical scheme, the virtual model is a positioning handle and intramedullary nail combined model pre-stored in a database; the target object is a positioning handle and intramedullary nail combination which is actually applied, and the virtual model is correspondingly matched with the target object.
As a preferred technical solution, the obtaining of the virtual model includes: and selecting a virtual model of the target object matched with the target object from the database by the user by using the virtual imaging device.
As a preferred technical solution, acquiring the target position so that the virtual model and the target substantially coincide includes: and adjusting the position of the virtual model, and if the virtual imaging device recognizes a corresponding gesture, moving the virtual model to be basically coincident with the target object.
As a preferred technical solution, acquiring the target object positioning identification information to make the virtual model and the target object accurately coincide includes: the virtual imaging device obtains the target object positioning information through the target object positioning identification mark, so that the virtual model and the target object are accurately superposed, and superposition tracking is kept.
Another object of the present invention is to provide an intramedullary nail interlocking nail implanting device with high stability, good safety, high positioning accuracy, which can realize visualization of the corresponding access channel during fixation of the intramedullary nail, and can be directly operated by vision.
In order to achieve the purpose, the invention adopts the technical scheme that:
an intramedullary nail interlocking nail implanting device comprises a positioning handle and a virtual imaging device; the positioning handle is connected with the intramedullary nail, a positioning matching device is arranged on the positioning handle, a plurality of positioning angles are arranged on the positioning matching device, and the virtual imaging device identifies the positioning angles.
As a preferred technical solution, the positioning matching device is a square frame with eight positioning angles.
As a preferred technical solution, the positioning matching device is detachably connected with the positioning handle.
As a preferred technical scheme, a positioning rod is arranged on the positioning pairing device and is connected with the positioning handle through a bolt.
As a preferable technical solution, the virtual imaging device is a head-mounted virtual imaging display, and can display the positions of the positioning handle and the intramedullary nail.
The invention has the advantages that:
1. the method for implanting the interlocking nail of the intramedullary nail can avoid the situation that the interlocking nail position is failed due to the fact that a plurality of connecting joints are arranged between a main nail of the intramedullary nail and an external positioning device and the relative position is possibly changed in the operation, and can also avoid the risk that the operation time is infinitely prolonged, the radiation quantity is increased and radiation injury is caused to patients and operation doctors because the interlocking nail hole is positioned by means of repeated fluoroscopy of an X-ray fluoroscopy machine.
2. The intramedullary nail interlocking nail implanting device comprises a positioning handle and a virtual imaging device, wherein a positioning matching device is arranged on the positioning handle, the positioning matching device is provided with a positioning angle used for providing accurate matching, and the virtual imaging device can identify the positioning matching device, so that a virtual model is matched and positioned with the positioning handle and an intramedullary nail connected with the positioning handle, and a corresponding access channel is visualized.
Drawings
FIG. 1 is a flow chart of a method for implanting interlocking intramedullary nails according to the present invention.
Fig. 2 is a perspective view of an intramedullary nail interlocking nail implanting device of the present invention.
Fig. 3 is a schematic view of a positioning handle of the intramedullary nail interlocking nail implanting device of the invention.
Fig. 4 is a schematic view of the positioning handle of another intramedullary nail interlocking nail implantation device of the present invention.
Detailed Description
The invention will be further illustrated with reference to specific embodiments. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes and modifications can be made by those skilled in the art after reading the disclosure of the present invention, and equivalents fall within the scope of the appended claims.
The reference numerals and components referred to in the drawings are as follows:
1. positioning handle 2, virtual imaging device 3, intramedullary nail
11. Positioning pairing device 12, positioning angle 13 and positioning rod
Example 1
Referring to fig. 1, fig. 1 is a schematic flow chart of an intramedullary nail interlocking nail implantation method according to the present invention. An intramedullary nail interlocking nail implantation method at least comprises the following steps S100-S104:
step S100: acquiring a virtual model, wherein the virtual model is consistent with a target object;
a user selects a virtual model of a target object matched with the target object from a database by using a virtual imaging device; the virtual model is a positioning handle and intramedullary nail combined model pre-stored in a database; the target object is a positioning handle and intramedullary nail combination which is actually applied, and the virtual model is correspondingly matched with the target object;
in some embodiments, a virtual model database is established, wherein the database at least comprises an applicable intramedullary nail and positioning handle combination, i.e. a combined and fixed intramedullary nail and positioning handle, which needs to be matched with the positioning handle to assist positioning because the intramedullary nail is inside the bone marrow during operation, and is equivalent to a handle in mechanical positioning, it should be understood that the virtual model can be constructed by itself, such as three-dimensional modeling, or related model data can be imported and updated;
step S102: acquiring the position of a target object, and enabling the virtual model to be basically superposed with the target object;
the user adjusts the position of the virtual model to enable the virtual model to be basically overlapped with a real target object;
in some embodiments, the virtual model can be moved to substantially coincide with the target object by recognizing a corresponding gesture through a virtual imaging device that projects the virtual model into the real world to visualize the target object by means of the virtual model, such as a device like a Hololens glasses;
step S104: acquiring target object positioning information to enable the virtual model to be accurately superposed with the target object;
the virtual imaging device obtains target object positioning information through the target object positioning identification mark, so that the virtual model and the target object are accurately superposed and superposition tracking is kept;
in some embodiments, a target object positioning identification mark, such as a positioning pairing device with a plurality of positioning angles, is arranged on the target object, and the positioning angles provided by the positioning pairing device can be used for accurate identification pairing of the virtual imaging device, so that target object positioning information is obtained, the virtual model and the target object are always kept in accurate overlapping, and the spatial position of the virtual model and the target object is locked.
It should be noted that: the intramedullary nail interlocking nail implantation method of the invention, through the virtual imaging technology, make the virtual model of the target object match and overlap with the position of the target object, even if the intramedullary nail put into patient's bone marrow is visual, make the medical staff, can observe the interlocking nail on the intramedullary nail and enter the road way directly, and while fixing the intramedullary nail, need not to rely on the complicated mechanical locating device, can be according to the visual channel directly, the electric drill equipped with bit drills into the bone along the position of the virtual interlocking nail hole, through the nail hole until penetrating the opposite cortex of bone, finish the operation; can effectively avoid connecting the joint between intramedullary nail main nail and the external positioner more, relative position changes in the middle of the operation, and the condition of taking place the failure of interlocking nail position location takes place, and can also avoid relying on X line perspective machine's repeated perspective to carry out the location in interlocking nail hole, leads to the unlimited extension of operation time and radioactive ray radiation volume increase, causes the risk of radiation injury to patient and operation doctor.
Example 2
Referring to fig. 2 and 3, fig. 2 is a schematic perspective view of an intramedullary nail interlocking nail implantation device of the present invention, and fig. 3 is a schematic view of a positioning handle of the intramedullary nail interlocking nail implantation device of the present invention. An intramedullary nail interlocking nail implanting method and device comprises a positioning handle 1 and a virtual imaging device 2; the positioning handle 1 is of an L-shaped rigid body structure, one end of the positioning handle is provided with a bolt hole, and the positioning handle is fixed with the intramedullary nail 3 through a bolt; the other end of the positioning handle 1 is provided with a positioning matching device 11, the positioning matching device 11 is a square frame with eight positioning angles 12 for positioning, and it should be noted that the positioning matching device 11 can also be a prism, a cone, etc.; the virtual imaging device 2 is a head-wearing virtual imaging display and can display the positions of the positioning handle 1 and the intramedullary nail 3, such as a Hololens device, a database of the virtual imaging device 2 is provided with a virtual combination model of various positioning handles 1 and the intramedullary nail 3, the virtual combination model is called when being used for operation, the virtual combination model can be controlled to move through gestures, the virtual imaging device 2 can identify the positioning angle 12, the matching precision of the intramedullary nail 3 in reality is guaranteed, and the interlocking nail can be conveniently positioned in a way.
The use mode of the invention is as follows: connecting the positioning handle 1 with the intramedullary nail 3, and inserting the main nail of the intramedullary nail 3 connected with the positioning handle 1 into a medullary cavity in operations, such as long-bone fracture operations; the surgeon wears a virtual imaging device 2, such as a Hololens lens. The current intramedullary nail 3 and the virtual model of the positioning handle 1 stored in the database can be called through gesture operation, the virtual model is controlled by gestures to move spatially, so that the spatial position between the real positioning handle 1 and the virtual positioning handle 1 is matched, the virtual imaging device 2 can identify a positioning angle 12 on the positioning matching device 11, the precision is automatically and immediately adjusted, and after the matching is finished, the real intramedullary nail 3 and the positioning handle 1 are kept stable and the spatial position of the virtual model is locked; the surgeon observes the spatial position of the interlocking nail hole on the virtual model, drills into the bone along the position of the virtual interlocking nail hole by holding an electric drill with a drill bit, measures the length of the nail hole until penetrating through opposite cortex lycii, screws in the interlocking nail with corresponding length, and finishes subsequent operation.
It should be noted that: the intramedullary nail interlocking nail implanting method and device comprises a positioning handle 1 and a virtual imaging device 2, wherein a positioning matching device 11 is arranged on the positioning handle 1, the positioning matching device 11 is provided with a positioning angle 12, the virtual imaging device 2 can identify the positioning matching device 11, a corresponding virtual model in a database can be used for matching and positioning with the positioning handle 1 and an intramedullary nail 3 connected with the positioning handle 1, and the position information is displayed in a real environment so as to directly expose a path entering channel of an interlocking nail, so that an operator can directly drill the interlocking nail along the position of a virtual interlocking nail hole by observation; the method and the device for implanting the interlocking nail of the intramedullary nail can avoid the situation that the main nail of the intramedullary nail 3 and an external positioning device have more connecting joints, the relative position changes in the operation and the positioning of the interlocking nail fails, and can also avoid the situation that the interlocking nail hole is positioned by means of repeated fluoroscopy of an X-ray fluoroscopy machine, thereby leading to the infinite prolongation of the operation time, the increase of the radiation amount and the risk of radiation injury to patients and operation doctors.
Example 3
Referring to fig. 4, fig. 4 is a schematic view of a positioning handle of another intramedullary nail interlocking nail implantation device according to the present invention. The present embodiment is substantially the same as embodiment 1, and the difference is that the positioning matching device 11 is detachably connected to the positioning handle 1, the positioning matching device 11 is provided with a positioning rod 13, the positioning rod 13 is connected to the positioning handle 1 through a bolt, that is, the positioning handle 1 may be an existing handle of the intramedullary nail 3, the positioning matching device 11 is connected to the virtual imaging device 2 by using an original positioning hole connected to the positioning device on the handle, and the virtual imaging device 2 may invoke a virtual model thereof, for example, the positioning handle 1, the positioning matching device 11 and the intramedullary nail 3 which are correspondingly combined are virtually modeled and stored in a database for the virtual imaging device 2 to invoke, which has the advantages of effectively utilizing existing equipment, reducing use cost, and increasing application flexibility of the intramedullary nail interlocking implantation method and device.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and additions can be made without departing from the principle of the present invention, and these should also be considered as the protection scope of the present invention.
Claims (10)
1. An intramedullary nail interlocking nail implantation method, comprising:
acquiring a virtual model, wherein the virtual model is consistent with a target object;
acquiring the position of a target object, and enabling the virtual model to be basically superposed with the target object;
and acquiring the positioning information of the target object to ensure that the virtual model and the target object are accurately superposed.
2. The intramedullary nail interlocking nail implantation method according to claim 1, wherein the virtual model is a positioning handle and intramedullary nail combination model pre-stored in a database; the target object is a positioning handle and intramedullary nail combination which is actually applied, and the virtual model is correspondingly matched with the target object.
3. The intramedullary nail interlocking nail implantation method according to claim 2, wherein obtaining a virtual model comprises: and selecting a virtual model of the target object matched with the target object from the database by the user by using the virtual imaging device.
4. The intramedullary nail interlocking nail implantation method of claim 3, wherein obtaining the target location such that the virtual model substantially coincides with the target object comprises: the position of the virtual model is adjusted, such as by recognizing a corresponding gesture by the virtual imaging device to move the virtual model to substantially coincide with the target object.
5. The intramedullary nail interlocking nail implanting method of claim 4, wherein obtaining the target object positioning identification information so that the virtual model and the target object are precisely coincident comprises: the virtual imaging device obtains the target object positioning information through the target object positioning identification mark, so that the virtual model and the target object are accurately superposed, and superposition tracking is kept.
6. An intramedullary nail interlocking nail implanting device is characterized by comprising a positioning handle and a virtual imaging device; the positioning handle is connected with an intramedullary nail, a positioning matching device is arranged on the positioning handle, a plurality of positioning angles are arranged on the positioning matching device, the virtual imaging device identifies the positioning angles, and the intramedullary nail interlocking nail implantation method and the device are applied to the intramedullary nail interlocking nail implantation method according to any one of claims 1 to 5.
7. The interlocking intramedullary nail implant device of claim 6, wherein the positioning pair device is a square frame with eight positioning angles thereon.
8. The intramedullary nail interlocking nail implantation device of claim 7, wherein the positioning pair device is removably coupled to the positioning stem.
9. The intramedullary nail interlocking nail implantation device according to claim 8, wherein the positioning pair device is provided with a positioning rod thereon, and the positioning rod is connected to the positioning handle by a bolt.
10. The interlocking intramedullary nail implantation device according to claim 9, wherein the virtual imaging device is a head-mounted virtual imaging display that displays the position of the locating stem and the intramedullary nail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110236377.7A CN113017817A (en) | 2021-03-03 | 2021-03-03 | Intramedullary nail interlocking nail implantation method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110236377.7A CN113017817A (en) | 2021-03-03 | 2021-03-03 | Intramedullary nail interlocking nail implantation method and device |
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| Publication Number | Publication Date |
|---|---|
| CN113017817A true CN113017817A (en) | 2021-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110236377.7A Pending CN113017817A (en) | 2021-03-03 | 2021-03-03 | Intramedullary nail interlocking nail implantation method and device |
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| CN (1) | CN113017817A (en) |
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- 2021-03-03 CN CN202110236377.7A patent/CN113017817A/en active Pending
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