CN204814139U - Digital location fixing system of interlocking intramedullary nail - Google Patents
Digital location fixing system of interlocking intramedullary nail Download PDFInfo
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- CN204814139U CN204814139U CN201520359800.2U CN201520359800U CN204814139U CN 204814139 U CN204814139 U CN 204814139U CN 201520359800 U CN201520359800 U CN 201520359800U CN 204814139 U CN204814139 U CN 204814139U
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- intramedullary nail
- pinning
- fixed system
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- pin
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Abstract
The utility model provides a digital location fixing system of interlocking intramedullary nail, location fixing system is equipped with pinning locking hole including the titanium alloy cavity intramedullary nail and the pinning that are used as fracture internal stability earnest on the intramedullary nail, can insert the guide arm that provides locking hole positional information in the intramedullary nail, and the intramedullary nail is fixed in the one end of connecting the handle, and the other end of connecting the handle is fixed with distal end pinning diopter, disposes magnetic force digital analog converter and drill bit protective sleeve on the distal end pinning diopter. The utility model provides a digital location fixing system of interlocking intramedullary nail does not need the perspective during operation, the location is the position of coming the locking of accurate positioning distal end through the intensity of surveying magnetic field, has avoided the contact (exposing the chance) of operation doctor and patient's ray. Simultaneously, use this system need not install the locating lever, the influence that not warp by the intramedullary nail distal end, the slight wearing and tearing of apparatus can not influence the accuracy nature of pinning yet, and operation time is showing and shortens to obviously reduce patient's wound and infect the chance.
Description
Technical field
This utility model relates to fracture fixation technical field, is specially a kind of interlocking intramedullary nail Digital location fixed system.
Background technology
, there is following major defect in the fracture location technique for fixing of existing employing intramedullary pin.
(1) when intramedullary pin is slightly out of shape, diopter cannot correct, and causes distal locking nail to be difficult to.
(2) locating rod can be caused to install when intra medullary nail far-end departs from pulp cavity central authorities welt to be the devil, remote lock
Need far-end of limb separately to make an otch to install locating rod during nail, often can open the suprapatellar bursa normal sclerotin of inevitable damage and quadriceps femoris simultaneously at distal part of femur, increase the chance of gnotobiotic mice and knee joint disorders; The tendon of tibia pre-group flesh is easily damaged in tibia lower end.
(3) namely apparatus mild wear easily causes pinning difficulty.Due to pinning difficulty, a lot of orthopedist abandons this prefered method of Medullary fixation when carrying out shaft fracture treatment and uses Interal fixation instead.
(4) because pinning is difficult to accurately, often need repeatedly have an X-rayed in art, the exposure chance of operative doctor and patient's ray is increased.
Utility model content
For problem, this utility model provides a kind of interlocking intramedullary nail Digital location fixed system.
The technical solution adopted in the utility model is; build interlocking intramedullary nail Digital location fixed system; above-mentioned location fixed system comprises the titanium alloy hollow intramedullary nail and pinning that are used as fracture inside-fixture; above-mentioned intramedullary pin is provided with pinning lock hole; the guide rod that lock hole positional information is provided is inserted with in above-mentioned intramedullary pin; above-mentioned Intramedullary nailing is in one end of connecting handle; the other end of connecting handle is fixed with distal locking nail diopter, and distal locking nail diopter is provided with magnetic force digital to analog converter and drill bit protection sleeve.
Further, the head of above-mentioned guide rod is provided with magnetic sheet, and the afterbody of above-mentioned guide rod is provided with the fixing hole according to different intramedullary pin Design of length, is plugged with the guide rod holder be movably connected with connecting handle in above-mentioned fixing hole.
Further, above-mentioned magnetic force digital to analog converter and drill bit protection sleeve be arranged in parallel, are provided with the through hole passed through for drill bit in above-mentioned drill bit protection sleeve.
Further, above-mentioned location fixed system also comprises guide pin, and above-mentioned guide pin is provided with scale.
Further, the near-end of above-mentioned intramedullary pin is provided with pair of locking hole, and its far-end is provided with the first lock hole and the second lock hole.
Further, above-mentioned guide rod holder is U-shaped.
Compared with prior art, interlocking intramedullary nail Digital location fixed system provided by the utility model, does not need perspective during operation.Location is the position of the next accurate locating distal locking of intensity by detecting magnetic field, reduces the exposure chance of operative doctor and patient's ray.Do not need to install locating rod, not by the impact of intra medullary nail far-end distortion, the mild wear of apparatus also can not affect the accuracy of pinning, obviously reduces wound and infection chance.
Accompanying drawing explanation
Fig. 1 is axonometric chart of the present utility model.
Detailed description of the invention
Set forth a lot of detail in the following description so that fully understand this utility model.But this utility model can be much different from alternate manner described here to implement, those skilled in the art can when doing similar popularization without prejudice to when this utility model intension, and therefore this utility model is by the restriction of following public specific embodiment.
Below in conjunction with drawings and Examples, detailed description of the invention of the present utility model is described further.
embodiment 1
In the present embodiment, by reference to the accompanying drawings, structure of the present utility model is described in detail.
Refer to accompanying drawing, the interlocking intramedullary nail Digital location fixed system that this utility model provides, location fixed system comprises the titanium alloy hollow intramedullary nail 1 and pinning that are used as fracture inside-fixture, intramedullary pin 1 is provided with pinning lock hole 2, pinning passes through lock hole 2 and is fixed on both sides cortical bone, the rotation of restriction fracture and shift separation.
The guide rod 3 that lock hole positional information is provided is inserted with in intramedullary pin 1; intramedullary pin 1 is fixed on one end of connecting handle 5; the other end of connecting handle 5 is fixed with distal locking nail diopter 6, and distal locking nail diopter 6 is provided with magnetic force digital to analog converter 7 and drill bit protection sleeve 8.The head of guide rod 3 is provided with magnetic sheet, and the afterbody of guide rod is provided with the fixing hole 301 according to different intramedullary pin Design of length, is plugged with the guide rod holder 4 be movably connected with connecting handle 5 in fixing hole 301.Magnetic force digital to analog converter 7 receives guide rod 3 head magnetic sheet magnetic field energy and is converted to numerical data.
As preferably, magnetic force digital to analog converter 7 and drill bit protection sleeve 8 be arranged in parallel, are provided with the through hole passed through for drill bit 9 in drill bit protection sleeve 8.
As preferably, location fixed system also comprises guide pin, and guide pin is provided with scale.Expand marrow as guiding when using soft marrow expanding device, and determine that whether each pinning is successful by its detection.(guide pin structure for drawing, ordinary steel needle-like, its outer wall is provided with scale)
As preferably, the near-end of intramedullary pin is provided with pair of locking hole 2, and its far-end is provided with the first lock hole 2-1 and the second lock hole 2-2.
As preferably, guide rod holder 4 is U-shaped.
embodiment 2
During concrete enforcement, operating procedure is as follows:
1. conventional fracture resets and determines the length of the intramedullary pin 1 used after temporary fixed expansion marrow completes.
2. first external prepackage, connecting handle 5 connects and fixes intramedullary pin 1 one end, distal locking nail diopter 6 is connected to connecting handle, guide rod 3 inserts intramedullary pin 1, and find the fixing hole 301 corresponding with intramedullary pin length at guide rod 3 afterbody, guide rod holder 4 is connected to this fixing hole and is connected with the groove of connecting handle 5 side, now the magnetic sheet of guide rod 3 head is right against the second lock hole 2-2 of the intramedullary pin other end, by drill bit 9 by the first lock hole 2-1 of drill bit protection sleeve 8 through intramedullary pin 1 distalmost end, magnetic force digital to analog converter 7 is placed in relevant position, at this moment transducer shows a numeral, record this data.
3. except intramedullary pin 1, remove all parts be connected with connecting handle 5 and put well for subsequent use successively, intramedullary pin 1 to be inserted in pulp cavity and to allow nail tail arrive correct position, guide pin being inserted and exceeds intramedullary pin distalmost end and record scale.
4. guide pin is exited, insert guide rod 3 and fix by during prepackage, connect distal locking nail diopter 6, first lay magnetic force digital to analog converter 7, regulate fixing by regulating handle 5 and the adjusting nut of distal locking nail diopter 6 junction, distal locking nail diopter 6 can do covering of the fan motion, the numeral that when adjusting to prepackage, magnetic force digital to analog converter 7 shows.
5. install outer sleeve and the inner sleeve of distalmost end pinning, check the number of degrees of magnetic force digital to analog converter, correct if desired, drill bit 9 gets intramedullary pin 1 distalmost end first lock hole 2-1 both sides cortex, drill bit 9 indwelling, removes guide rod 3.
6. use guide pin detection and obviously shorten with previous comparison length; prove that distalmost end location is correct; remove magnetic force digital to analog converter 7; insert another unit-type drill head of drill bit protection sleeve 8 to hole, the detection of guide pin pin is again shortened and is reduced the distance the distance just equaling the first lock hole 2-1 and the second lock hole 2-2.
7. exit distalmost end drill bit 9, insert the pinning of appropriate length, then exit second drill bit, reuse guide pin detection and confirm that distalmost end pinning locks successfully, then insert the pinning of one piece of appropriate length at second lock hole, the same guide pin that uses confirms.
8. remove distal locking nail diopter 6, from distally proximad, limbs near-end two pieces of pinnings are installed routinely, all use guide pin to confirm.
Although this utility model with preferred embodiment openly as above; but it is not for limiting this utility model; any those skilled in the art are not departing from spirit and scope of the present utility model; can make possible variation and amendment, the scope that therefore protection domain of the present utility model should define with this utility model claim is as the criterion.
Claims (6)
1. interlocking intramedullary nail Digital location fixed system, described location fixed system comprises the titanium alloy hollow intramedullary nail (1) and pinning that are used as fracture inside-fixture, it is characterized in that, described intramedullary pin (1) is provided with pinning lock hole (2), the guide rod (3) that lock hole positional information is provided is inserted with in described intramedullary pin (1), described intramedullary pin (1) is fixed on one end of connecting handle (5), the other end of connecting handle (5) is fixed with distal locking nail diopter (6), distal locking nail diopter (6) is provided with magnetic force digital to analog converter (7) and drill bit protection sleeve (8).
2. interlocking intramedullary nail Digital location fixed system according to claim 1, it is characterized in that, the head of described guide rod (3) is provided with magnetic sheet, the afterbody of described guide rod is provided with the fixing hole (301) according to different intramedullary pin Design of length, is plugged with the guide rod holder (4) be movably connected with connecting handle (5) in described fixing hole (301).
3. interlocking intramedullary nail Digital location fixed system according to claim 1; it is characterized in that; described magnetic force digital to analog converter (7) and drill bit protection sleeve (8) be arranged in parallel, are provided with the through hole passed through for drill bit (9) in described drill bit protection sleeve (8).
4. interlocking intramedullary nail Digital location fixed system according to claim 1, is characterized in that, described location fixed system also comprises guide pin, and described guide pin is provided with scale.
5. interlocking intramedullary nail Digital location fixed system according to claim 1, is characterized in that, the near-end of described intramedullary pin is provided with pair of locking hole (2), and its far-end is provided with the first lock hole (2-1) and the second lock hole (2-2).
6. interlocking intramedullary nail Digital location fixed system according to claim 2, is characterized in that, described guide rod holder (4) is for U-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520359800.2U CN204814139U (en) | 2015-05-29 | 2015-05-29 | Digital location fixing system of interlocking intramedullary nail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520359800.2U CN204814139U (en) | 2015-05-29 | 2015-05-29 | Digital location fixing system of interlocking intramedullary nail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204814139U true CN204814139U (en) | 2015-12-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520359800.2U Expired - Fee Related CN204814139U (en) | 2015-05-29 | 2015-05-29 | Digital location fixing system of interlocking intramedullary nail |
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| CN (1) | CN204814139U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108742811A (en) * | 2018-07-09 | 2018-11-06 | 常州华森医疗器械有限公司 | A kind of anti-rotation type intramedullary nail external member |
| CN110215261A (en) * | 2019-06-27 | 2019-09-10 | 上海交通大学 | Drill bit locator and its method for registering for Intramedullary nailing operation |
| CN113229917A (en) * | 2021-05-24 | 2021-08-10 | 北京市春立正达医疗器械股份有限公司 | Intramedullary nail guide pin |
| CN117414205A (en) * | 2023-12-18 | 2024-01-19 | 北京维卓致远医疗科技发展有限责任公司 | Navigation positioning and registering system for long bone surgery |
-
2015
- 2015-05-29 CN CN201520359800.2U patent/CN204814139U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108742811A (en) * | 2018-07-09 | 2018-11-06 | 常州华森医疗器械有限公司 | A kind of anti-rotation type intramedullary nail external member |
| CN108742811B (en) * | 2018-07-09 | 2020-06-19 | 常州华森医疗器械有限公司 | Anti-rotation intramedullary nail suite |
| CN110215261A (en) * | 2019-06-27 | 2019-09-10 | 上海交通大学 | Drill bit locator and its method for registering for Intramedullary nailing operation |
| CN110215261B (en) * | 2019-06-27 | 2021-01-22 | 上海交通大学 | Drill positioner for intramedullary nail fixation operation and registration method thereof |
| CN113229917A (en) * | 2021-05-24 | 2021-08-10 | 北京市春立正达医疗器械股份有限公司 | Intramedullary nail guide pin |
| CN113229917B (en) * | 2021-05-24 | 2022-09-20 | 北京市春立正达医疗器械股份有限公司 | Intramedullary nail guide pin |
| CN117414205A (en) * | 2023-12-18 | 2024-01-19 | 北京维卓致远医疗科技发展有限责任公司 | Navigation positioning and registering system for long bone surgery |
| CN117414205B (en) * | 2023-12-18 | 2024-04-02 | 北京维卓致远医疗科技发展有限责任公司 | Navigation positioning and registering system for long bone surgery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151202 Termination date: 20160529 |
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| CF01 | Termination of patent right due to non-payment of annual fee |