CN209091592U - Adjustable intramedullary nail - Google Patents
Adjustable intramedullary nail Download PDFInfo
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- CN209091592U CN209091592U CN201820223501.XU CN201820223501U CN209091592U CN 209091592 U CN209091592 U CN 209091592U CN 201820223501 U CN201820223501 U CN 201820223501U CN 209091592 U CN209091592 U CN 209091592U
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- intramedullary nail
- distal end
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- nail head
- adjustable
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Abstract
The utility model relates to the field of medical instrument technology, especially a kind of adjustable intramedullary nail, it is made of intramedullary nail main body and intramedullary nail head, intramedullary nail main body includes intramedullary nail proximal, intramedullary nail body distal end and intramedullary nail body cavity, intramedullary nail head includes intramedullary nail head proximal end, intramedullary nail head distal end and intramedullary nail head cavity, intramedullary nail body distal end inner wall is equipped with internal screw thread, and intramedullary nail head proximal end outer wall is equipped with the external screw thread to match with intramedullary nail body distal end internal screw thread.This design structure is simple, applied widely, and when operation can adjust specification as the case may be, can adjust to minimum gauge under conditions of guaranteeing that patient obtains good curative effect, reduce the unnecessary injury caused by patient.
Description
Technical field
The utility model relates to the field of medical instrument technology, especially a kind of adjustable intramedullary nail.
Background technique
Intramedullary nail is a widely used Medullary fixation device, is treated especially for tubular bone fracture, and intramedullary nail more accords with
Close the mechanical characteristic of bone.Intramedullary nail mainly passes through interlocking structure and expands marrow technology at present, improves anti-torsion, axial displacement and transverse direction
The performances such as fine motion, but for intramedullary nail according to most skeleton length and fracture fixation demand, regular specification is mono- specification of 10mm in the market,
Therefore specification is less, fixation will cause not enough for some patients and influence knitting or cause unnecessary injury etc..
Utility model content
In order to overcome the shortcomings of that existing intramedullary nail specification is less, the utility model is provided in a kind of adjustable marrow
Nail.
The technical scheme adopted by the utility model to solve the technical problem is as follows: a kind of adjustable intramedullary nail, by marrow
Main body and intramedullary nail head composition are followed closely, intramedullary nail main body includes intramedullary nail proximal, intramedullary nail body distal end and intramedullary nail master
Body cavity, intramedullary nail head include intramedullary nail head proximal end, intramedullary nail head distal end and intramedullary nail head cavity, intramedullary nail main body
Distal end inner wall is equipped with internal screw thread, and intramedullary nail head proximal end outer wall is equipped with the outer spiral shell to match with intramedullary nail body distal end internal screw thread
Using being threadedly coupled, it is firm to connect for line, intramedullary nail main body and intramedullary nail head, and realizes the specification for adjusting intramedullary nail.
Another embodiment according to the present utility model further comprises that every 5mm sets a card in the bar portion of intramedullary nail head
Slot, intramedullary nail body distal end inner wall are equipped with the buckle to match with card slot on intramedullary nail head, can accurately control intramedullary nail
Specification.
Another embodiment according to the present utility model further comprises that intramedullary nail proximal is equipped with multiple intramedullary nail masters
Body proximal end bore, hole count is variable, and the pattern in hole includes dynamic pattern and static pattern, and there are two types of the distribution patterns in hole, respectively hands over
Locking-type and non-interlocking formula, hole are used cooperatively with screw and screw blade or in which one kind, suitable for the various classification of fracture of patient
It uses.
Another embodiment according to the present utility model further comprises intramedullary nail proximal and intramedullary nail body distal end
The range of angled α, α are 170 ° -180 °, to meet the anatomical features of long bone and its pulp cavity.
Another embodiment according to the present utility model further comprises that intramedullary nail body distal end is equipped with open slot, opening
For slot tool there are two types of form, i.e. three slot types and four-groove type, open slot can make intramedullary nail body distal end have certain elasticity, thus convenient
Intramedullary nail head partial insertion and the buckle fastening of intramedullary nail main part.
Another embodiment according to the present utility model further comprises that intramedullary nail head distal end is equipped with multiple intramedullary nail heads
Portion's remote stomidium, hole count is variable, and the pattern in hole includes dynamic pattern and static pattern, and there are two types of the distribution patterns in hole, respectively hands over
Locking-type and non-interlocking formula, hole and screw fit use, the use suitable for the various classification of fracture of patient.
Another embodiment according to the present utility model further comprises that intramedullary nail head distal end is equipped with turn slot, turn
Slot tool facilitates intramedullary nail head screwing in intramedullary nail main body there are two types of form, i.e. plum blossom trough and interior hex slot.
Applied widely the utility model has the beneficial effects that this design structure is simple, when operation, can be as the case may be
Specification is adjusted, can adjust to minimum gauge, reduce caused by patient under conditions of guaranteeing that patient obtains good curative effect
Unnecessary injury.
Detailed description of the invention
The present invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram of intramedullary nail main body；
Fig. 3 is the structural schematic diagram on intramedullary nail head；
Fig. 4 is the dynamic pattern schematic diagram in hole；
Fig. 5 is the static pattern schematic diagram in hole；
Fig. 6 is the non-interlocking formula distribution schematic diagram in hole；
Fig. 7 is the interlocking formula distribution schematic diagram in hole；
Fig. 8 is the structural schematic diagram of three slot type open slots；
Fig. 9 is the structural schematic diagram of four-groove type open slot；
Figure 10 is the structural schematic diagram of plum blossom trough；
Figure 11 is the structural schematic diagram of interior hex slot；
1 in figure, intramedullary nail main body, 2, intramedullary nail head, 3, intramedullary nail proximal, 4, intramedullary nail proximal hole, 5,
Intramedullary nail body distal end, 6, intramedullary nail body cavity, 7, internal screw thread, 8, open slot, 9, buckle, 10, intramedullary nail head proximal end,
11, external screw thread, 12, intramedullary nail head remote stomidium, 13, card slot, 14, intramedullary nail head distal end, 15, turn slot, 16, intramedullary nail head
Portion's cavity.
Specific embodiment
If Fig. 1 is the structural schematic diagram of the utility model, a kind of adjustable intramedullary nail, by intramedullary nail main body 1 and marrow
Nail head 2 forms.As shown in Fig. 2, intramedullary nail main body 1 includes intramedullary nail proximal 3, intramedullary nail body distal end 5 and intramedullary nail
Body cavity 6.As shown in figure 3, intramedullary nail head 2 includes intramedullary nail head proximal end 10, intramedullary nail head distal end 14 and intramedullary nail
Head cavity 16,5 inner wall of intramedullary nail body distal end are equipped with internal screw thread 7, and 10 outer wall of intramedullary nail head proximal end is equipped with and intramedullary nail master
Using being threadedly coupled, it is firm to connect for the external screw thread 11 that 5 internal screw threads 7 of body distal end match, intramedullary nail main body 1 and intramedullary nail head 2,
And realize the possibility for adjusting the specification of intramedullary nail.Every 5mm sets a card slot 13, intramedullary nail master in 2 bar portion of intramedullary nail head
5 inner walls of body distal end are equipped with the buckle 9 to match with card slot 13 on intramedullary nail head 2, can accurately control the specification of intramedullary nail.
Intramedullary nail proximal 3 is equipped with multiple intramedullary nail proximals hole 4, and hole count is variable, and the pattern in hole includes dynamic type
Formula and static pattern, as shown in Figures 4 and 5；There are two types of the distribution patterns in hole, as shown in Figures 6 and 7, respectively interlocking formula and Fei Jiao
Locking-type, hole are used cooperatively with screw and screw blade or in which one kind, the use suitable for the various classification of fracture of patient.Intramedullary nail
Proximal 3 and the angled α of intramedullary nail body distal end 5, the range of α are 170 ° -180 °, to meet long bone and its pulp cavity
Anatomical features.Intramedullary nail body distal end 5 is equipped with open slot 8, and there are two types of forms for the tool of open slot 8, as shown in FIG. 8 and 9, i.e. three slot types
And four-groove type, open slot 8 can make intramedullary nail body distal end 5 have certain elasticity, to facilitate intramedullary nail head partial insertion and marrow
Interior 1 part of nail main body buckle, 9 fastening.
Intramedullary nail head distal end 14 is equipped with multiple intramedullary nail heads remote stomidium 12, and hole count is variable, and the pattern in hole includes dynamic
Pattern and static pattern, as shown in Figures 4 and 5；There are two types of the distribution patterns in hole, as shown in Figures 6 and 7, respectively interlocking formula and non-
Interlocking formula, hole are used cooperatively with screw piece, the use suitable for the various classification of fracture of patient.Intramedullary nail head distal end 14 is equipped with rotation
Dynamic slot 15, the tool of turn slot 15 facilitate such as Figure 10 and 11, i.e. plum blossom trough and interior hex slot there are two types of form and screw in intramedullary nail head 2
Intramedullary nail main body 1.
In surgical procedure, intramedullary nail head 2 is first screwed in by 1 part of intramedullary nail main body according to fracture situation, and adjust to conjunction
Suitable specification is spare, then is open at nail entering, and adjustable intramedullary nail is squeezed into fracture ossis using mating instrument, makes fracture
Obtain preliminary reset and fixation.Auxiliary screw or screw blade will be passed through into adjustable intramedullary nail using mating aiming appliance again
Corresponding hole screws in, so that further fracture is resetted and be fixed.
Claims (7)
1. a kind of adjustable intramedullary nail is made of intramedullary nail main body (1) and intramedullary nail head (2), intramedullary nail main body (1) includes
Intramedullary nail proximal (3), intramedullary nail body distal end (5) and intramedullary nail body cavity (6), intramedullary nail head (2) include in marrow
Nail head proximal end (10), intramedullary nail head distal end (14) and intramedullary nail head cavity (16), characterized in that intramedullary nail body distal end
(5) inner wall is equipped with internal screw thread (7), and intramedullary nail head proximal end (10) outer wall is equipped with and intramedullary nail body distal end (5) internal screw thread (7) phase
Matched external screw thread (11).
2. adjustable intramedullary nail according to claim 1, characterized in that every 5mm sets one in intramedullary nail head (2) bar portion
A card slot (13), intramedullary nail body distal end (5) inner wall are equipped with the buckle (9) to match with card slot (13) on intramedullary nail head (2).
3. adjustable intramedullary nail according to claim 1, characterized in that intramedullary nail proximal (3) is equipped with multiple marrows
Interior nail proximal hole (4), hole count is variable, and the pattern in hole includes dynamic pattern and static pattern, and there are two types of the distribution patterns in hole,
Respectively interlocking formula and non-interlocking formula.
4. adjustable intramedullary nail according to claim 1, characterized in that intramedullary nail proximal (3) and intramedullary nail master
Body distal end (5) angled α, the range of α is 170 ° -180 °.
5. adjustable intramedullary nail according to claim 1, characterized in that intramedullary nail body distal end (5) is equipped with open slot
(8), there are two types of forms, i.e. three slot types and four-groove type for open slot (8) tool.
6. adjustable intramedullary nail according to claim 1, characterized in that intramedullary nail head distal end (14) is equipped with multiple marrows
Interior nail head remote stomidium (12), hole count is variable, and the pattern in hole includes dynamic pattern and static pattern, and the distribution pattern in hole has two
Kind, respectively interlocking formula and non-interlocking formula.
7. adjustable intramedullary nail according to claim 1, characterized in that intramedullary nail head distal end (14) is equipped with turn slot
(15), there are two types of forms, i.e. plum blossom trough and interior hex slot for turn slot (15) tool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820223501.XU CN209091592U (en) | 2018-02-08 | 2018-02-08 | Adjustable intramedullary nail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820223501.XU CN209091592U (en) | 2018-02-08 | 2018-02-08 | Adjustable intramedullary nail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209091592U true CN209091592U (en) | 2019-07-12 |
Family
ID=67148466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820223501.XU Active CN209091592U (en) | 2018-02-08 | 2018-02-08 | Adjustable intramedullary nail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209091592U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113197631A (en) * | 2021-04-14 | 2021-08-03 | 无锡市第九人民医院 | Interlocking intramedullary nail applicable to metaphysis fracture bone defect |
-
2018
- 2018-02-08 CN CN201820223501.XU patent/CN209091592U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113197631A (en) * | 2021-04-14 | 2021-08-03 | 无锡市第九人民医院 | Interlocking intramedullary nail applicable to metaphysis fracture bone defect |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: No. 12, Jinfeng Road, West Taihu science and Technology Industrial Park, Changzhou, Jiangsu Province, 213000 Patentee after: CHANGZHOU GEASURE MEDICAL DEVICES Co.,Ltd. Address before: 213000 Jiangsu Province, Changzhou City West Road No. 9, director of Taihu science and technology industrial building C1 Patentee before: CHANGZHOU GEASURE MEDICAL DEVICES Co.,Ltd. |