CN220089617U - Intramedullary guiding device - Google Patents
Intramedullary guiding device Download PDFInfo
- Publication number
- CN220089617U CN220089617U CN202320656091.9U CN202320656091U CN220089617U CN 220089617 U CN220089617 U CN 220089617U CN 202320656091 U CN202320656091 U CN 202320656091U CN 220089617 U CN220089617 U CN 220089617U
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- Prior art keywords
- traction
- bone
- intramedullary
- guiding device
- guide
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- 210000000988 bone and bone Anatomy 0.000 claims abstract description 76
- 238000004804 winding Methods 0.000 claims abstract description 21
- 230000003115 biocidal effect Effects 0.000 claims description 18
- 239000002639 bone cement Substances 0.000 claims description 18
- 239000011324 bead Substances 0.000 claims description 9
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 210000001331 nose Anatomy 0.000 claims 2
- 210000003491 skin Anatomy 0.000 abstract description 14
- 230000012010 growth Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 5
- 210000003205 muscle Anatomy 0.000 abstract description 4
- 210000005036 nerve Anatomy 0.000 abstract description 4
- 210000001519 tissue Anatomy 0.000 abstract description 4
- 230000004064 dysfunction Effects 0.000 abstract description 3
- 206010020649 Hyperkeratosis Diseases 0.000 abstract description 2
- 241001079814 Symphyotrichum pilosum Species 0.000 abstract description 2
- 235000004224 Typha angustifolia Nutrition 0.000 abstract description 2
- 230000035790 physiological processes and functions Effects 0.000 abstract description 2
- 230000007547 defect Effects 0.000 description 5
- 230000008929 regeneration Effects 0.000 description 3
- 238000011069 regeneration method Methods 0.000 description 3
- 208000006735 Periostitis Diseases 0.000 description 2
- 230000005672 electromagnetic field Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000035876 healing Effects 0.000 description 2
- 208000015181 infectious disease Diseases 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 210000003460 periosteum Anatomy 0.000 description 2
- 210000004872 soft tissue Anatomy 0.000 description 2
- 230000017423 tissue regeneration Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000036770 blood supply Effects 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 210000001185 bone marrow Anatomy 0.000 description 1
- 230000010478 bone regeneration Effects 0.000 description 1
- 210000002808 connective tissue Anatomy 0.000 description 1
- 230000001054 cortical effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000003195 fascia Anatomy 0.000 description 1
- 210000003754 fetus Anatomy 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000011278 mitosis Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
Intramedullary guider relates to medical instrument technical field, including the guide tube, be equipped with the traction body along its axial slip on the guide tube, be equipped with transport bone connection structure on the outer wall of traction body, the traction end of guide tube is connected with the support that extends to external perpendicularly, and the outer tip of support is equipped with the winding wheel, and the winding has the traction wire on the winding wheel, and the other end and the traction body of traction wire are connected. The utility model solves the problems that the bone nails in the prior art are inserted into bones from outside to play a role in fixation, the nail rod can cut tissues such as skin, muscle, nerve and the like in the bone carrying process, so that extra damage is caused, dysfunction is possibly formed, and the traction is discontinuous and does not accord with the physiological state of fibrous callus growth.
Description
Technical Field
The utility model relates to the technical field of medical instruments, in particular to an intramedullary guiding device.
Background
The tension-stress rule is a theory of limb regeneration and functional reconstruction created by Russian medical expert, and is based on the principle that biological tissue can generate fixed tension when being slowly pulled, so that the tissue regeneration and active growth can be stimulated, and the growth mode is cell mitosis like fetal tissue. Human bones have great regeneration potential and plasticity as human epithelial connective tissues. A proper stress traction is given to the bone, and the bone and the muscles, fascia, blood vessels and nerves attached to the bone grow synchronously. llizarov has demonstrated significant regeneration of both bone and limb vessels during cortical osteotomies and gradual traction extension.
Specifically, the bone carrying technology is to stretch and open the bone, namely cut bone, reserve soft tissues and blood supply, fix two ends by adopting a special traction device, gradually apply tension to slowly stretch the bone segment, excite the tissue regeneration potential, and enable the osteotomy gap to form new bone, thereby achieving the aim of bone regeneration.
The prior art discloses a patent with the publication number of CN209347191U, and this scheme includes the internal electromagnetic drive traction mechanism of connection between autologous bone end and osteotomy end, internal electromagnetic drive traction mechanism can drive the transport bone section and move to the direction of keeping away from the osteotomy end under the drive of external control electromagnetic field. The utility model utilizes an external alternating electromagnetic field to drive the permanent magnet in the intramedullary needle in a non-contact way to rotate, thereby driving the screw rod in the intramedullary needle to rotate, and the screw rod rotates to drive the traction block connected with the bone conveying section to move in the direction away from the bone cutting end, so that the bone conveying section gradually moves through the defect section, finally contacts with the bone defect end and realizes bone healing through pressurization, and the intramedullary needle is dismantled after the bone healing, thus completing bone conveying, realizing non-invasive and uniform traction of the periosteum at the bone cutting position, inducing periosteum to form bones and realizing bone defect reconstruction.
The prior devices, including the above patents, gradually expose the disadvantages of the technology with use, mainly in the following aspects:
firstly, the prior patent is an electromagnetic driving intramedullary nail, the conception idea is very good, the permanent magnet of the intramedullary nail is driven to rotate by the electromagnetic force outside the body, and the permanent magnet is linked with a screw cap, so that the bone carrying process is realized, and the problem does not exist from the perspective of the application, but the problem cannot be actually realized, because the permanent magnet is arranged at one end of the intramedullary nail, if the bone nails at two ends of a fixed long bone are loosened, the permanent magnet is easy to be clamped by the inner wall of the long bone and can not rotate when being stressed; the other threaded rod is often attached with soft tissues, and the nut can be blocked and cannot rotate; and everybody is high to be short and fat to be thin different, and the magnetic force that needs also is different, can't accurate adjustment to whether internal permanent magnet rotates also can't follow the detection, and magnet has N level and S level, how to guarantee that N level and S level just correspond with outside electromagnetic end, this patent has been applied for 5 years, does not see the application.
Secondly, in bone handling operation, the new bone does not have normal shape and force line in the bone handling process, the operation effect is affected, the recovery time is prolonged, the bone nails are inserted into the bone from outside to play a fixing role, the nail rods can cut tissues such as skin, muscle and nerve and the like in the bone handling process, extra damage is caused, dysfunction is possibly formed, and the traction is discontinuous, so that the even growth of the new bone cannot be ensured.
In summary, it is clear that the prior art has inconvenience and defects in practical use, so that improvement is needed.
Disclosure of Invention
Aiming at the defects in the prior art, the utility model solves the problems that the bone nails in the prior art are inserted into bones from outside the body to play a role in fixation, the nail rod can cut tissues such as skin, muscle, nerves and the like in the bone carrying process, so that extra damage is caused and dysfunction is possibly formed, and the traction is discontinuous and does not accord with the physiological state of fibrous callus growth.
In order to solve the problems, the utility model provides the following technical scheme:
the intramedullary guiding device comprises a guiding tube, wherein a traction body is arranged on the guiding tube along the axial sliding direction of the guiding tube, a carrying bone connecting structure is arranged on the outer wall of the traction body, the traction tail end of the guiding tube is vertically connected with a support extending to the outside of the body, the outer end part of the support is provided with a winding wheel, a traction wire is wound on the winding wheel, and the other end of the traction wire is connected with the traction body.
As an optimized scheme, a guide channel is arranged on the opposite side wall of the guide tube in a penetrating way, a guide nose constrained in the guide channel is fixedly connected to the traction end of the traction body, and the traction wire is connected to the guide nose.
As an optimized scheme, the carrying bone connecting structure comprises external threads which are arranged on the outer wall of the traction body in a surrounding mode.
As an optimized scheme, the bracket is L-shaped, and one end of the bracket is connected to the traction end of the guide pipe through a thread structure.
As an optimized scheme, the other end of the bracket is fixedly connected with a driving machine, and the winding wheel is connected to an output shaft of the driving machine.
As an optimized scheme, the side wall of the guide tube is provided with a guiding hole which is opposite to the driving machine, and the outer end part of the traction wire penetrates through the guiding hole and is connected with the winding wheel.
As an optimized scheme, a first avoiding hole for avoiding the traction rope is formed in the skin, a plurality of broad-spectrum antibiotic bone cement beads are fixed in the first avoiding hole in parallel, through holes are formed in the broad-spectrum antibiotic bone cement beads, and the traction wire penetrates through the through holes.
As an optimized scheme, a second avoidance hole for avoiding the bracket is formed in the skin, a broad-spectrum antibiotic bone cement sleeve is fixed in the second avoidance hole, and the bracket penetrates through the broad-spectrum antibiotic bone cement sleeve.
As an optimized scheme, bone nail holes are respectively arranged on the peripheral walls of the guide pipes close to the two ends in parallel.
Compared with the prior art, the utility model has the beneficial effects that:
bone nail holes are formed in two ends of the intramedullary, bone nails are inserted into the bone nail holes, the bone nails are fixed with two ends of long bones, external threads are formed on the outer wall of a traction body, the bone nails can be screwed into an inner cavity of a transported bone, the bone nails are connected with the traction wire through a guide nose, the other end of the traction wire extends to the outside of the body along a guide post, a guide hole and a first avoiding hole and is connected with a winding wheel, continuous winding of the traction wire is realized through continuous rotation of a driving machine, and further the transported bone is driven to continuously and uninterruptedly move;
the extreme end of the guide pipe can be screwed into an L-shaped bracket, and the other end of the bracket is led out of the body and is provided with a fixed driving machine;
to prevent infection, a broad-spectrum antibiotic bone cement bead is placed in the skin hole between the bone and the skin, and the skin is also surrounded by a broad-spectrum antibiotic bone cement sheath at the contact position of the skin and the bracket.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. Like elements or portions are generally identified by like reference numerals throughout the several figures. In the drawings, elements or portions thereof are not necessarily drawn to scale.
Fig. 1 is a schematic structural view of the present utility model.
In the figure: 1-a guide tube; 2-traction body; 3-external threads; 4-guiding channels; 5-guiding nose; 6-a traction wire; 7-a lead-out hole; 8-winding wheel; 9-driving machine; 10-a bracket; 11-broad spectrum antibiotic bone cement beads; 12-broad spectrum antibiotic bone cement sheath; 13-long bones; 14-carrying bones; 15-bone nails.
Detailed Description
Embodiments of the technical scheme of the present utility model will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present utility model, and thus are merely examples, and are not intended to limit the scope of the present utility model.
As shown in fig. 1, the intramedullary guiding device comprises a guiding tube 1, a traction body 2 is arranged on the guiding tube 1 along the axial sliding direction of the guiding tube, a carrying bone 14 connecting structure is arranged on the outer wall of the traction body 2, a support 10 extending to the outside of the body is vertically connected to the traction tail end of the guiding tube 1, a winding wheel 8 is arranged at the outer end part of the support 10, a traction wire 6 is wound on the winding wheel 8, and the other end of the traction wire 6 is connected with the traction body 2.
The opposite side wall of the guiding tube 1 is provided with a guiding channel 4 in a penetrating way, the traction end of the traction body 2 is fixedly connected with a guiding nose 5 constrained in the guiding channel 4, and a traction wire 6 is connected to the guiding nose 5.
Wherein the traction body is of a sleeve structure.
When the diameter of the conveying bone is thicker, the screw is drilled from the side of the conveying bone perpendicular to the conveying direction, so that the bone nail can pass through the hollow bone tube, and the residual space can pass through the guide tube smoothly. The wire is passed between the inner wall of the bone and the shaft of the screw and wound back from the other side, resulting in traction of the bone being transported.
In order to facilitate the later removal of the pulling body 2, the outer diameter of the guide tube 1 near the upper end is larger than the outer diameter near the lower end.
The carrying bone 14 connecting structure comprises an external thread 3 which is arranged on the outer wall of the traction body 2 in a surrounding mode, the external thread 3 can enable the traction body 2 to be fastened and connected with the carrying bone 14, and displacement phenomenon during traction is prevented.
The support 10 is L-shaped, and the one end of support 10 passes through the helicitic texture and connects on the traction end of guide tube 1, and the helicitic texture can be for the inner wall of guide tube 1 upper end is equipped with the internal thread, is equipped with the cooperation mode of external screw thread 3 on the support 10.
The other end of the bracket 10 is fixedly connected with a driving machine 9, and the winding wheel is connected to an output shaft of the driving machine 9.
The driving machine 9 is fixed by a rod body fixedly connected to the shell of the driving machine 9, the upper end part of the rod body is fixedly connected with a sliding sleeve, and the sliding sleeve is sleeved on the bracket 10 in a sliding manner and is fixed by a screw.
The side wall of the guiding tube 1 is provided with a guiding hole 7 which is arranged opposite to the driving machine 9, and the outer end part of the traction wire 6 passes through the guiding hole 7 and is connected with the winding wheel 8.
The skin is provided with a first avoiding hole for avoiding the traction rope, a plurality of broad-spectrum antibiotic bone cement beads 11 are fixed in the first avoiding hole in parallel, the broad-spectrum antibiotic bone cement beads 11 are provided with through holes, and the traction wire 6 penetrates through the through holes.
The skin is provided with a second avoidance hole for avoiding the bracket 10, a broad-spectrum antibiotic bone cement sleeve 12 is fixed in the second avoidance hole, and the bracket 10 penetrates through the broad-spectrum antibiotic bone cement sleeve 12.
Bone nail holes are respectively arranged on the peripheral walls of the guide tube 1 close to the two ends in parallel.
The working principle of the device is as follows:
bone nails 15 holes are formed in two ends of the marrow, bone nails 15 are inserted into the bone nails 15 holes, so that the bone nails are fixed with two ends of a long bone 13, external threads 3 are arranged on the outer wall of a traction body 2 and can be screwed into an inner cavity of a transported bone 14, the bone nails are connected with a traction wire 6 through a guide nose 5, the other end of the traction wire 6 extends to the outside of the body along a guide post, a guide-out hole 7 and a first avoidance hole and is connected with a winding wheel 8, continuous winding of the traction wire 6 is realized through continuous rotation of a driving machine 9, and continuous and uninterrupted movement of the transported bone 14 is driven;
the extreme end of the guide tube 1 can be screwed into an L-shaped bracket 10, the other end of the bracket 10 is led out of the body, and a fixed driving machine 9 is arranged;
to prevent infection, the pull wire 6 is passed through the skin hole between the bone and the skin and broad spectrum antibiotic bone cement beads 11 are provided, and the skin is also surrounded by broad spectrum antibiotic bone cement sheath 12 at the contact position with the stent 10.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model, and are intended to be included within the scope of the appended claims and description.
Claims (9)
1. Intramedullary guiding device, its characterized in that: including guide pipe (1), be equipped with on guide pipe (1) along its axial sliding and pull body (2), be equipped with transport bone connection structure on the outer wall of pull body (2), the traction end of guide pipe (1) is connected with perpendicularly and extends to external support (10), the outer tip of support (10) is equipped with winding wheel (8), the winding has traction wire (6) on winding wheel (8), the other end of traction wire (6) with pull body (2) are connected.
2. The intramedullary guiding device of claim 1, wherein: the guide pipe is characterized in that guide channels (4) are formed in the opposite side walls of the guide pipe (1) in a penetrating mode, guide noses (5) constrained in the guide channels (4) are fixedly connected to the traction ends of the traction body (2), and traction wires (6) are connected to the guide noses (5).
3. The intramedullary guiding device of claim 1, wherein: the carrying bone connecting structure comprises an external thread (3) which is arranged on the outer wall of the traction body (2) in a surrounding mode.
4. The intramedullary guiding device of claim 1, wherein: the support (10) is L-shaped, and one end of the support (10) is connected to the traction end of the guide tube (1) through a threaded structure.
5. The intramedullary guiding device of claim 1, wherein: the other end of the bracket (10) is fixedly connected with a driving machine (9), and the winding wheel (8) is connected to an output shaft of the driving machine (9).
6. The intramedullary guiding device of claim 5, wherein: the side wall of the guide pipe (1) is provided with a guiding-out hole (7) which is opposite to the driving machine (9), and the outer end part of the traction wire (6) passes through the guiding-out hole (7) and is connected with the winding wheel (8).
7. The intramedullary guiding device of claim 1, wherein: the skin is provided with a first avoiding hole for avoiding the traction rope, a plurality of broad-spectrum antibiotic bone cement beads (11) are fixed in the first avoiding hole in parallel, the broad-spectrum antibiotic bone cement beads (11) are provided with through holes, and the traction wire (6) penetrates through the through holes.
8. The intramedullary guiding device of claim 1, wherein: the skin is provided with a second avoidance hole for avoiding the bracket (10), a broad-spectrum antibiotic bone cement sleeve (12) is fixed in the second avoidance hole, and the bracket (10) penetrates through the broad-spectrum antibiotic bone cement sleeve (12).
9. The intramedullary guiding device of claim 1, wherein: bone nail holes are respectively arranged on the peripheral walls of the guide tube (1) close to the two ends in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320656091.9U CN220089617U (en) | 2023-03-29 | 2023-03-29 | Intramedullary guiding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320656091.9U CN220089617U (en) | 2023-03-29 | 2023-03-29 | Intramedullary guiding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220089617U true CN220089617U (en) | 2023-11-28 |
Family
ID=88870707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320656091.9U Active CN220089617U (en) | 2023-03-29 | 2023-03-29 | Intramedullary guiding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220089617U (en) |
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2023
- 2023-03-29 CN CN202320656091.9U patent/CN220089617U/en active Active
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