CN201958942U - Titanium-nickel memory alloy blood vessel anastomat - Google Patents
Titanium-nickel memory alloy blood vessel anastomat Download PDFInfo
- Publication number
- CN201958942U CN201958942U CN2010206637970U CN201020663797U CN201958942U CN 201958942 U CN201958942 U CN 201958942U CN 2010206637970 U CN2010206637970 U CN 2010206637970U CN 201020663797 U CN201020663797 U CN 201020663797U CN 201958942 U CN201958942 U CN 201958942U
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- memory alloy
- blood vessel
- shape memory
- titanium
- sewing
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Abstract
The utility model relates to a titanium-nickel memory alloy blood vessel anastomat which comprises a titanium-nickel memory alloy wire, two semicircular sewing needles and two sewing threads, wherein the titanium-nickel memory alloy wire is spiral (the memory shape) under the temperature of 27 to 33 DEG C, the two semicircular sewing needles are arranged at the two ends of the titanium-nickel memory alloy wire, and the titanium-nickel memory alloy wire is connected with the tow semicircular sewing needles by the two sewing threads. The titanium-nickel memory alloy blood vessel anastomat is convenient to operate, has short sewing time, can be used for greatly increasing the blood vessel sewing speed and solves the technical problem of angiostenosis caused by low sewing speed, poor blood vessel anastomosis, non-smooth blood flow and hyperblastosis at the position of anastomosis by means of conventional blood vessel anastomosis.
Description
Technical field
This utility model relates to a kind of human vas anastomat, particularly a kind of human vas anastomat with the ti-ni shape memory alloy material.
Background technology
Vascular anastomosis is a kind of operation form in the surgical clinical, is primarily aimed at wound or people and is the modus operandi of a kind of vascular anastomosis that the rupture of blood vessel that causes exercises.The speed of conventional sewing method stitching clinically is very slow at present, and blood vessel is involutory bad, thrombosis, the angiostenosis that anastomosis hamartoplasia causes.Especially clinically the identical difficulty that is applied in the minute blood vessel in the microsurgery is bigger.
Summary of the invention
This utility model purpose provides a kind of ti-ni shape memory alloy blood vessel anastomat with the Ti-Ni marmem material, the technical problems such as angiostenosis that it has solved, and conventional vascular suture method stitching speed is slow, involutory bad, the thrombosis of blood vessel, anastomosis hamartoplasia cause.
Technical solution of the present utility model is:
A kind of ti-ni shape memory alloy blood vessel anastomat, its special character is: when described blood vessel anastomat comprises 27～33 ℃ shape memory be spiral ti-ni shape memory alloy line 3, be arranged on ti-ni shape memory alloy line 3 two ends two semicircle sewing needles 1, connect two stitching thread 2 of ti-ni shape memory alloy line 3 and two semicircle sewing needles 1.
Shape memory was collinear ti-ni shape memory alloy line when above-mentioned stitching thread 2 was 27～33 ℃, and described stitching thread 2 is 60 ° to 90 ° with the angular range of the axis direction of spiral type ti-ni shape memory alloy line 3.
Above-mentioned ti-ni shape memory alloy line 3 and two stitching thread 2 are integral structure, and described two semicircle sewing needles 1 adopt welding manner to be connected with two stitching thread 2.
Above-mentioned ti-ni shape memory alloy line 3 is a helical tubular structure.
The utility model has the advantages that:
1, this utility model utilizes the human vas anastomat of ti-ni shape memory alloy material, and is easy to operate, and suture time is short, can significantly improve the speed of vascular suture.
2, this utility model ti-ni shape memory alloy blood vessel anastomat, by memorial alloy near " spiral type " support of recovering and expanding into different-diameter under the human body temperature voluntarily, be whole circulus, play the stent support effect of a machinery, it under the human body temperature condition lasting holding state automatically, can guarantee the involutory with one heart of blood vessel, make that blood vessel is expert to become cavity, guarantee unobstructed after the vascular anastomosis.
3, this utility model ti-ni shape memory alloy blood vessel anastomat forms the extruding to the ends of vessels joint, reduces amount of bleeding, impels the blood vessel healing, and operation safety is reliable.
4, this utility model ti-ni shape memory alloy blood vessel anastomat, unique shape memory function forms lasting automatically the support, can overcome anastomosis, ends of vessels healing back and form the angiostenosis that abnormal pigmentary deposit on the skin trace hypertrophy causes because of hamartoplasia.
5, this utility model ti-ni shape memory alloy blood vessel anastomat, good biocompatibility can forever be implanted.
6, this utility model ti-ni shape memory alloy blood vessel anastomat can be applicable to bypass surgery vascular anastomosis and microsurgery vascular anastomosis.
Description of drawings
Fig. 1 is the structural representation of this utility model blood vessel anastomat;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the position view of this utility model blood vessel anastomat in blood vessel;
Wherein: the semicircle sewing needle of 1-, 2-stitching thread, 3-ti-ni shape memory alloy line, 4-blood vessel wall.
The specific embodiment
This utility model ti-ni shape memory alloy blood vessel anastomat, comprise 27～33 ℃ at present shape memory be different-diameter spiral ti-ni shape memory alloy line 3, be arranged on two semicircle sewing needles 1 at ti-ni shape memory alloy line 3 two ends, the two ends of nickel memorial alloy line 3 are connected with two semicircle sewing needles 1 with stitching thread 2 respectively.Ti-ni shape memory alloy line 3 and two stitching thread 2 are integral structure, and two semicircle sewing needles 1 adopt welding manner to be connected with stitching thread 2.Stitching thread 2 is generally straight line, and stitching thread 2 is 60 ° to 90 ° with the angular range of the axis direction of spiral type ti-ni shape memory alloy line 3.
This utility model blood vessel anastomat can draw back at normal temperatures, reverts to " spiral type " near human body temperature the time, is in superelastic.The sewing needle that connects on the stitching thread is used for the stitching of ends of vessels.During stitching, respectively two sewing needles are thrust the involutory position of ends of vessels, stitching thread was sewed up wearing to interlock continuously around one week of blood vessel, and the extruding that forms periphery at stitching thread under the effect of body temperature in the straight process of change is involutory, blood vessel one is all airtight, cut off stitching thread after having sewed up.
Anastomat in the implantable intravascular, memory deformation formation " spiral type " tubular bracket takes place in refresh memory under the human body temperature condition, and blood vessel integral body is strutted.The elasticity tension that on the inwall circumference of blood vessel, is evenly distributed, the all-directional integral support that forms the blood vessel cavity resets, and " spiral type " forms support.The axial shrinkage of " spiral type " is pushed the broken ends of fractured bone of blood vessel, guarantees the stitching of ends of vessels.
This utility model operation principle:
Utilize ti-ni shape memory alloy material excellent biological compatibility, have that intensity height, proportion are low, endurance, corrosion-resistant, wear-resistant, nonmagnetic, advantage such as a have no side effect implantable intravascular for a long time.Near under the human body temperature, memorial alloy produces super-elasticity support force and axial tension, and the broken ends of fractured bone of blood vessel is pushed in the contraction of " spiral type ", with two lines ends of vessels is sewed up.
Claims (4)
1. ti-ni shape memory alloy blood vessel anastomat is characterized in that: when described blood vessel anastomat comprises 27～33 ℃ shape memory be spiral ti-ni shape memory alloy line (3), be arranged on ti-ni shape memory alloy line (3) two ends two semicircle sewing needles (1), connect two stitching thread (2) of ti-ni shape memory alloy line (3) and two semicircle sewing needles (1).
2. ti-ni shape memory alloy blood vessel anastomat according to claim 1, it is characterized in that: shape memory was collinear ti-ni shape memory alloy line when described stitching thread (2) was 27～33 ℃, and described stitching thread (2) is 60 ° to 90 ° with the angular range of the axis direction of spiral type ti-ni shape memory alloy line (3).
3. ti-ni shape memory alloy blood vessel anastomat according to claim 1 and 2, it is characterized in that: described ti-ni shape memory alloy line (3) and two stitching thread (2) are integral structure, and described two semicircle sewing needles (1) adopt welding manner to be connected with two stitching thread (2).
4. ti-ni shape memory alloy blood vessel anastomat according to claim 3 is characterized in that: described ti-ni shape memory alloy line (3) is a helical tubular structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206637970U CN201958942U (en) | 2010-12-16 | 2010-12-16 | Titanium-nickel memory alloy blood vessel anastomat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206637970U CN201958942U (en) | 2010-12-16 | 2010-12-16 | Titanium-nickel memory alloy blood vessel anastomat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201958942U true CN201958942U (en) | 2011-09-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206637970U Expired - Lifetime CN201958942U (en) | 2010-12-16 | 2010-12-16 | Titanium-nickel memory alloy blood vessel anastomat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201958942U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102551831A (en) * | 2010-12-16 | 2012-07-11 | 陕西福泰医疗科技有限公司 | Blood vessel anastomat made of nickel-titanium memory alloy |
| CN102727271A (en) * | 2012-06-29 | 2012-10-17 | 北京米道斯医疗器械有限公司 | Proximal anastomosis device |
-
2010
- 2010-12-16 CN CN2010206637970U patent/CN201958942U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102551831A (en) * | 2010-12-16 | 2012-07-11 | 陕西福泰医疗科技有限公司 | Blood vessel anastomat made of nickel-titanium memory alloy |
| CN102727271A (en) * | 2012-06-29 | 2012-10-17 | 北京米道斯医疗器械有限公司 | Proximal anastomosis device |
| CN102727271B (en) * | 2012-06-29 | 2014-12-24 | 北京米道斯医疗器械有限公司 | Proximal anastomosis device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110907 |