CN204233204U - A kind of Ultimum Ti connecting device of vertebral column titanium rod - Google Patents
A kind of Ultimum Ti connecting device of vertebral column titanium rod Download PDFInfo
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- CN204233204U CN204233204U CN201420672701.5U CN201420672701U CN204233204U CN 204233204 U CN204233204 U CN 204233204U CN 201420672701 U CN201420672701 U CN 201420672701U CN 204233204 U CN204233204 U CN 204233204U
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- titanium rod
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Abstract
This utility model relates to a kind of Ultimum Ti connecting device of vertebral column titanium rod, Ultimum Ti adapter, titanium rod A, titanium rod B, it is characterized by described Ultimum Ti adapter outside in cylindric, its inside is provided with cavity, cavity is ellipticity along axis cross section, respectively there is the radial shell fragment of a circle at cavity two ends, and the end of titanium rod A, titanium rod B inserts in cavity from adapter two ends respectively, and stretches into respectively in the radial shell fragment circle at cavity two ends.This utility model utilizes the shape memory characteristic of Ultimum Ti to connect titanium rod A, titanium rod B, in connector cavity, radial shell fragment, titanium rod B cone end bullet pad are out of shape according to variations in temperature, thus strut and lock titanium rod A, titanium rod B, screw-threaded coupling mode and related equipment is used when removing operation from, settle at one go, stable performance.
Description
Technical field
This utility model relates to a kind of Ultimum Ti connecting device of vertebral column titanium rod, belongs to technical field of medical instruments.
Background technology
At present, along with the development of internal fixation of spine technology, adopt spine nail rod fixed system to reset to pathologic regressions such as thoracic vertebra, lumbar vertebra are bending, lopsided, correct and obtain applying more and more widely.Adopt one or more titanium rod pitman of implant (or as) along spinal column location and be connected with pedicle nail, stable supporting can be provided, promoting spinal column recovery after the procedure and fusion.
Now generally the mode of conventional screw-threaded coupling fixes the connection of two or many titanium rods, and screw-threaded coupling mode needs corresponding apparatus auxiliary operation, adds operation easier and the operating time of operation when performing the operation.A large amount of clinical proof shortens operating time as far as possible, can reduce patient pain, shortens the Rehabilitation cycle.
Utility model content
This utility model, for the problems referred to above, provides a kind of Ultimum Ti connecting device of vertebral column titanium rod.
The purpose of this utility model is achieved through the following technical solutions:
A kind of Ultimum Ti connecting device of vertebral column titanium rod, comprise Ultimum Ti adapter, titanium rod A, titanium rod B, it is characterized by described Ultimum Ti adapter outside in cylindric, its inside is provided with cavity, cavity is ellipticity along axis cross section, respectively there is the radial shell fragment of a circle at cavity two ends, and the end of titanium rod A, titanium rod B inserts in cavity from Ultimum Ti adapter two ends respectively, and stretches into respectively in the radial shell fragment circle at cavity two ends.Ellipticity cavity for radial shell fragment be out of shape, titanium rod A, titanium rod B locking space is provided.
In connector cavity, radial shell fragment is in opening and replying contraction two kinds of states, replys contraction state for closing up shape under open configuration radially.The Ultimum Ti making of radial shell fragment in Ultimum Ti adapter internal cavity described here because adopting, so have shape memory characteristic, the deformation temperature of this radial shell fragment is 0 ~ 4 DEG C, and under this deformation temperature, distortion is opened for outer radial; Recovery temperature is 35 ~ 38 DEG C, under recovery temperature, replys to be punctured into and closes up shape (interior radial), clamping titanium rod.
Further, described titanium rod A head is taper, and head taper stretches in radial shell fragment circle, and terebrantia is provided with the ring-type triangle draw-in groove of a circle indent.Under replying contraction state, radial shell fragment snaps in the ring-type triangle draw-in groove of indent.
Further, titanium rod B head is taper, and head taper stretches in radial shell fragment circle, and terebrantia is provided with the ring-type triangle draw-in groove of a circle indent, and cone end is welded with Ultimum Ti bullet pad; Under replying contraction state, radial shell fragment snaps in the ring-type triangle draw-in groove of indent.
Further, described titanium rod B cone end bullet pad is in shrinking and extending two kinds of states.Described titanium rod B cone end bullet pad deformation temperature is 0 ~ 4 DEG C, is deformed into contraction-like under this deformation temperature; Recovery temperature is 35 ~ 38 DEG C, is deformed into elongate under this recovery temperature, struts titanium rod A, titanium rod B.
Further, described Ultimum Ti adapter side is provided with yi word pattern observation window, installs for observing inner titanium rod.
The utility model has the advantages that: this utility model utilizes the shape memory characteristic of Ultimum Ti to connect titanium rod, uses screw-threaded coupling mode and related equipment, effectively shorten operating time when removing operation from.
Accompanying drawing explanation
With reference to the accompanying drawings this utility model is described in further detail below.
Fig. 1 is this utility model contour structures schematic diagram.
Fig. 2 is the fixing rear half sectional view of this utility model titanium rod A, titanium rod B.
Fig. 3 is this utility model titanium rod A, titanium rod B fixes front cross sectional view.
Fig. 4 is the sectional view that the radial shell fragment of this utility model opens.
Fig. 5 is that the radial shell fragment of this utility model shrinks the sectional view closing up shape.
Fig. 6 is the schematic diagram that titanium of the present utility model rod B cone holds bullet pad contraction-like.
Fig. 7 is the schematic diagram of titanium of the present utility model rod B cone end bullet pad elongate.
Fig. 8 is the schematic diagram of titanium of the present utility model rod A.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As shown in the figure, a kind of Ultimum Ti connecting device of vertebral column titanium rod, comprise Ultimum Ti adapter (2), titanium rod A (4), titanium rod B (1), described Ultimum Ti adapter (2) outside is in cylindric, its inside is provided with cavity, cavity is ellipticity along axis cross section, respectively there is the radial shell fragment of a circle (5) at cavity two ends, the end of titanium rod A (4), titanium rod B (1) inserts in cavity from Ultimum Ti adapter (2) two ends respectively, and stretches into respectively in the radial shell fragment circle at cavity two ends.Ellipticity cavity is radial shell fragment (5) distortion, excellent B (1) locking of titanium rod titanium rod A (4), titanium provides space.
In Ultimum Ti adapter (2) cavity, radial shell fragment (5) is in opening and replying contraction two kinds of states, replys contraction state for closing up shape under open configuration radially.The Ultimum Ti making of radial shell fragment (5) in Ultimum Ti adapter (2) internal cavity described here because adopting, so have shape memory characteristic, the deformation temperature of this radial shell fragment (5) is 0 ~ 4 DEG C, under this deformation temperature, distortion is opened for outer radial; Recovery temperature is 35 ~ 38 DEG C, under recovery temperature, replys to be punctured into and closes up shape (interior radial), clamping titanium rod A (4), titanium rod B (1).
Described titanium rod A (4) head is taper, and head taper stretches in radial shell fragment (5) circle, and terebrantia is provided with the ring-type triangle draw-in groove of a circle indent.Under replying contraction state, radial shell fragment (5) snaps in the ring-type triangle draw-in groove of indent.
Titanium rod B (1) head is taper, head taper stretches in radial shell fragment (5) circle, terebrantia is provided with the ring-type triangle draw-in groove (8) of a circle indent, and cone end (7) is welded with Ultimum Ti bullet pad (6); Under replying contraction state, radial shell fragment (5) snaps in the ring-type triangle draw-in groove (8) of indent.
Described titanium rod B (1) cone end bullet pad is in shrinking and extending two kinds of states.Described titanium rod B cone end bullet pad (6) deformation temperature is 0 ~ 4 DEG C, is deformed into contraction-like under this deformation temperature; Recovery temperature is 35 ~ 38 DEG C, is deformed into elongate under this recovery temperature, struts titanium rod A (4), titanium rod B (1).
Described Ultimum Ti adapter (2) side is provided with yi word pattern observation window (4), and for observing inner titanium rod A (4), titanium rod B (1) is installed.
This utility model realizes connecting titanium rod A (4), the process of titanium rod B (1) is: before installation, first by titanium rod A (4), titanium rod B (1), Ultimum Ti adapter (2) is cooled to deformation temperature 0 ~ 4 DEG C, again by titanium rod A (4), the cone end of titanium rod B (1) stretches in connector cavity from Ultimum Ti adapter (2) two ends respectively, raised temperature to 35 ~ 38 DEG C, radial shell fragment (5), titanium rod B (1) cone end bullet pad (6) recovery of shape simultaneously, radial shell fragment (2) clamping titanium rod A (4), titanium rod B (1), prevent titanium rod A (4), titanium rod B (1) exits, bullet pad (6) struts titanium rod A (4), titanium rod B (1) until radial shell fragment (5) head snaps in titanium rod A (4), titanium rod B (1) cone tail draw-in groove, the connection of fixing titanium rod A (4), titanium rod B (1).
The application process of this utility model in operation is: preoperative, first by titanium of the present utility model rod B(1) and Ultimum Ti adapter (2) be cooled to about 0 DEG C with ice normal saline, make the radial shell fragment of Ultimum Ti adapter (2) inner chamber (5) be out of shape open for outer radial, be beneficial to titanium rod A(4), B(1) stretch into; By titanium rod B(1) head bullet pad (6) is deformed into contraction, is beneficial to titanium rod A(4), B(1) installation.In art, when titanium rod A(4) need lengthen time, then ice normal saline to be soaked and Ultimum Ti adapter (2) after being out of shape is installed to titanium rod A tapering point (7), then selects titanium rod B(1 according to lengthening) and stretch into Ultimum Ti adapter (2) other end.Owing to being subject to temperature influence, the radial shell fragment of Ultimum Ti adapter (2) inner chamber (5) is returned to and closes up shape, titanium rod B(1) conical nose bullet pad (6) elongation, strut titanium rod A(4), titanium rod B(1) until radial shell fragment (5) head snaps in the triangle draw-in groove (8) of titanium rod cone tail shell fragment indent, thus prevent titanium rod A(4), titanium rod B(1) exit Ultimum Ti adapter (2) and lock.Titanium rod A(4), titanium rod B(1) connection can observe from the yi word pattern observation window (3) of Ultimum Ti adapter (2).
This utility model has following theory and experimental data to be foundation:
The property of marmem is the result due to martensitic phase transformation in its material.Under high temperature, shape memory alloy material exists with parent phase (austenite phase) version, and when the temperature decreases, crystal structure undergoes phase transition, and changes martensitic phase into.The four transformations temperature of memorial alloy is: Mf, Ms, As and Af are respectively martensitic phase transformation end temp, martensite start temperature, austenite phase transformation start temperature and austenite phase transformation end temp.For most of marmem Ms<As, and temperature is within the scope of Ms<T<As, and marmem does not undergo phase transition, and martensite and austenite can coexist in this temperature range.The shape memory effect of marmem refers to, at the temperature started lower than austenite phase transformation (T<As), for marmem imposed load, when reaching phase transformation limit stress, material starts to be changed to the monotropic body of geneva (or untwinned martensite) by changeable body (coexisting body of austenite, twin crystal martensite or austenite and twin crystal martensite), very little in phase transformation stage STRESS VARIATION, but produce very large phase transition strain, the geneva monomer formed at the end of phase transformation is thermodynamically stable.Only have micro-elastic strain recovery during unloading, phase transition strain is converted into overstrain.By being heated to more than austenite phase transformation end temp (T>Af), material is converted into austenite by monotropic body, and overstrain is recovered completely, then memorial alloy is returned to original shape.Nitinol has shape memory characteristic, super-elasticity, corrosion resistance.Nitinol has extensive clinical practice in the medical courses in general such as oral cavity, cardiovascular, intestinal, has played positive effect.
The Nitinol of rich Ni often increases by the nickel content of 0.1%, and phase transition temperature can be made to pass 12 DEG C to low temperature.Therefore suitably adjusting Ni content in Nitinol can make the Af of Nitinol adjust to the scope of applicable human body temperature, thus makes Nitinol that human body temperature can be relied on to return to original form.
This utility model is not limited to above-mentioned preferred forms; anyone can draw other various forms of products under enlightenment of the present utility model; no matter but any change is done in its shape or structure; every have identical with the application or akin technical scheme, all drops within protection domain of the present utility model.
Claims (6)
1. the Ultimum Ti connecting device of a vertebral column titanium rod, comprise Ultimum Ti adapter, titanium rod A, titanium rod B, it is characterized by described Ultimum Ti adapter outside in cylindric, its inside is provided with cavity, cavity is ellipticity along axis cross section, respectively there is the radial shell fragment of a circle at cavity two ends, and the end of titanium rod A, titanium rod B inserts in cavity from Ultimum Ti adapter two ends respectively, and stretches into respectively in the radial shell fragment circle at cavity two ends.
2. the Ultimum Ti connecting device of a kind of vertebral column titanium rod according to claim 1, to it is characterized by described Ultimum Ti connector cavity radial shell fragment in opening and replying contraction two kinds of states, under open configuration radially, contraction state is replied for closing up shape.
3. the Ultimum Ti connecting device of a kind of vertebral column titanium rod according to claim 1, it is characterized by described titanium rod A head is taper, head taper stretches in radial shell fragment circle, terebrantia is provided with the ring-type triangle draw-in groove of a circle indent, under replying contraction state, radial shell fragment snaps in the ring-type triangle draw-in groove of indent.
4. the Ultimum Ti connecting device of a kind of vertebral column titanium rod according to claim 1, it is characterized by described titanium rod B head is taper, head taper stretches in radial shell fragment circle, and terebrantia is provided with the ring-type triangle draw-in groove of a circle indent, and cone end is welded with Ultimum Ti bullet pad; Under replying contraction state, radial shell fragment snaps in the ring-type triangle draw-in groove of indent.
5. the Ultimum Ti connecting device of a kind of vertebral column titanium rod according to claim 4, is characterized in that described titanium rod B cone end bullet pad is in shrinking and extending two kinds of states.
6. the Ultimum Ti connecting device of a kind of vertebral column titanium rod according to claim 4, is characterized in that described Ultimum Ti adapter side is provided with yi word pattern observation window.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420672701.5U CN204233204U (en) | 2014-11-13 | 2014-11-13 | A kind of Ultimum Ti connecting device of vertebral column titanium rod |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420672701.5U CN204233204U (en) | 2014-11-13 | 2014-11-13 | A kind of Ultimum Ti connecting device of vertebral column titanium rod |
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| CN204233204U true CN204233204U (en) | 2015-04-01 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104758043A (en) * | 2015-04-30 | 2015-07-08 | 杨永军 | Method and device for achieving middle-upper thoracic vertebrae semi-pedicle screw fixation in posterior mode |
-
2014
- 2014-11-13 CN CN201420672701.5U patent/CN204233204U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104758043A (en) * | 2015-04-30 | 2015-07-08 | 杨永军 | Method and device for achieving middle-upper thoracic vertebrae semi-pedicle screw fixation in posterior mode |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 314003, No. 1-2, building 8, Shanghai Jiaotong University (Jiaxing) Science Park, No. 321, Chong Chong Road, Xiuzhou District, Zhejiang, Jiaxing Patentee after: Zhejiang Dekang medical instrument limited company Address before: 314000, building 212, R & D building, Shanghai Jiaotong University (Jiaxing) Science Park, No. 321, Chong Chong Road, Xiuzhou District, Zhejiang, Jiaxing Patentee before: JIAXING DEKANG MEDICAL INSTRUMENT CO., LTD. |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A nickel titanium memory alloy connecting device for spinal titanium rod Effective date of registration: 20210904 Granted publication date: 20150401 Pledgee: China CITIC Bank Co.,Ltd. Jiaxing Branch Pledgor: ZHEJIANG DECANS MEDICAL INSTRUMENT Co.,Ltd. Registration number: Y2021330001348 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |