CN211534734U - Nickel-titanium alloy ball head guide pin - Google Patents
Nickel-titanium alloy ball head guide pin Download PDFInfo
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- CN211534734U CN211534734U CN201922377617.6U CN201922377617U CN211534734U CN 211534734 U CN211534734 U CN 211534734U CN 201922377617 U CN201922377617 U CN 201922377617U CN 211534734 U CN211534734 U CN 211534734U
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- titanium alloy
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- guide pin
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Abstract
The utility model belongs to the technical field of orthopedics consumptive material technique and specifically relates to a nickel titanium alloy bulb guide pin, including the guide pin body, guide pin body top is connected with the nickel titanium alloy bulb, and guide pin body upper end central point puts and has the bellied integrative structure top spacing head that makes progress. The utility model discloses a nickel titanium alloy bulb guide pin is fixed the nickel titanium alloy bulb of constituteing by nickel titanium alloy top direction head and the spacing first threaded connection in nickel titanium alloy bottom at guide pin body top fixedly connected with, through threaded connection fixed can make things convenient for bulb and needle body separation, makes things convenient for later stage maintenance to change, reduces later stage use cost, can utilize the gap of link can in time discover the firmness of link simultaneously, and the maintenance operation is also timely high-efficient more.
Description
Technical Field
The utility model belongs to the technical field of orthopedics consumptive material technique and specifically relates to a nickel titanium alloy bulb guide pin.
Background
The existing clinical orthopedic ball head guide pin has soft material; when the bending is serious, the guide pin can not be shaped and reset, so that the whole tool is scrapped, and the later cost is high; meanwhile, when the head is welded and matched with the soft expansion, the head falls off and enters the human body, so that the operation safety is not high.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: in order to solve the problems in the prior art, an improved nitinol ball-end needle is provided to solve the problems in the prior art.
The utility model provides a technical scheme that its technical problem adopted is: a nickel-titanium alloy ball head guide pin comprises a guide pin body, wherein a nickel-titanium alloy ball head is connected to the top end of the guide pin body, an integral structure top limiting head protruding upwards is arranged at the center of the upper end of the guide pin body, the cross section of the top limiting head is of a T-shaped structure, the nickel-titanium alloy ball head comprises a nickel-titanium alloy top guide head sleeved at the upper end of the top limiting head and a nickel-titanium alloy bottom limiting head sleeved on the guide pin body, an internal limiting clamping groove matched with the top limiting head is formed in the inner top surface of the nickel-titanium alloy top guide head, an internal assembling through hole matched with the guide pin body is formed in the center of the inner part of the nickel-titanium alloy bottom limiting head, an internal assembling clamping groove matched with the top limiting head is formed in the opening position of the inner side surface of the internal assembling through hole, an integral structure internal thread assembling ring protruding downwards is arranged at the edge position of the lower, the upper surface of the nickel-titanium alloy bottom limiting head is provided with an external thread assembling ring which is convex upwards and matched with the internal thread assembling ring.
Furthermore, in order to facilitate the assembly, disassembly and fixation, the nickel-titanium alloy top guide head is screwed into the external thread assembly ring through the internal thread assembly ring and is fixedly connected with the nickel-titanium alloy bottom limiting head, and the nickel-titanium alloy top guide head is fixedly connected with the top limiting head through the threaded connection with the nickel-titanium alloy bottom limiting head.
Further, in order to promote the stability of internal assembly, the overhead end of top spacing have with inside spacing draw-in groove matched with top installation fixed block, nickel titanium alloy top direction head pass through inside spacing draw-in groove cover and fix with the overhead end joint of top spacing.
Further, in order to improve the stability of the assembling end, no gap exists between the inner side arc-shaped surface of the inner assembling through hole and the outer side connecting surface of the guide pin body.
Further, in order to promote the internal limiting assembly capacity, the cross section of the top mounting fixing block is of a regular hexagon structure, and no gap exists between the outer side surface of the top mounting fixing block and the inner side connecting surface of the internal limiting clamping groove.
Furthermore, in order to reduce the guiding resistance and improve the guiding efficiency, the outer arc-shaped surface of the nickel-titanium alloy top guiding head and the outer arc-shaped surface of the internal thread assembling ring are the same arc-shaped surface.
The beneficial effects of the utility model are that, the utility model discloses a nickel titanium alloy bulb guide pin is fixed the nickel titanium alloy bulb of constituteing by nickel titanium alloy top direction head and the spacing first threaded connection in nickel titanium alloy bottom at guide pin body top fixedly connected with, can make things convenient for bulb and needle body separation through threaded connection is fixed, makes things convenient for later stage maintenance to change, reduces later stage use cost, can utilize the gap of link can in time discover the firmness of link simultaneously, and the maintenance operation is also timely high-efficient more.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a cross-sectional view of the interior of the nitinol bulb of the present invention.
In the drawing, 1, a guide pin body, 2, a top limiting head, 3, a nickel-titanium alloy top guiding head, 4, a nickel-titanium alloy bottom limiting head, 5, an internal limiting clamping groove, 6, an internal assembly through hole, 7, an internal assembly clamping groove, 8, an internal thread assembly ring, 9, an external thread assembly ring and 10, a top mounting fixing block are arranged.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.
The nickel-titanium alloy ball head guide pin shown in figures 1 and 2 comprises a guide pin body 1, the top end of the guide pin body 1 is connected with a nickel-titanium alloy ball head, the central position of the upper end of the guide pin body 1 is provided with an integral structure top limiting head 2 which protrudes upwards, the section of the top limiting head 2 is of a T-shaped structure, the nickel-titanium alloy ball head comprises a nickel-titanium alloy top guiding head 3 which is sleeved at the upper end of the top limiting head 2 and a nickel-titanium alloy bottom limiting head 4 which is sleeved on the guide pin body 1, the inner top surface of the nickel-titanium alloy top guiding head 3 is provided with an inner limiting clamping groove 5 which is matched with the top limiting head 2, the inner central position of the nickel-titanium alloy bottom limiting head 4 is provided with an inner assembling through hole 6 which is matched with the guide pin body 1, the inner assembling clamping groove 7 which is matched with the top limiting head 2 is arranged at the upper end opening position on the inner side surface of the inner assembling through, the upper surface of the nickel-titanium alloy bottom limiting head 4 is provided with an external thread assembling ring 9 which is convex upwards and matched with the internal thread assembling ring 8.
Further, for convenience of fixing in assembly and disassembly, the nickel-titanium alloy top guide head 3 is fixedly connected with the nickel-titanium alloy bottom limiting head 4 through the inner thread assembly ring 8 screwed in outer thread assembly ring 9, the nickel-titanium alloy top guide head 3 is fixedly connected with the top limiting head 2 through the thread connection with the nickel-titanium alloy bottom limiting head 4, further, in order to improve the stability of the internal assembly, the top limiting head 2 upper end is provided with the top installation fixing block 10 matched with the internal limiting clamping groove 5, the nickel-titanium alloy top guide head 3 is sleeved on the top installation fixing block 10 through the internal limiting clamping groove 5 and is fixed with the top limiting head 2 upper end in a clamping manner.
Further, for promoting the stability of assembly end, do not have the clearance between 6 inboard arcwall faces of interior assembly through-hole and the 1 outside connection face of guide pin body, further, for promoting inside spacing assembly ability, top installation fixed block 10 cross-sections are regular hexagon structure, do not have the clearance between 10 lateral surfaces of top installation fixed block and the 5 inboard connection faces of inside spacing draw-in groove.
Further, in order to reduce the direction resistance, promote direction efficiency, the first 3 outside arcwall faces of nickel titanium alloy top direction and the 8 outside arcwall faces of internal thread assembly ring are same arcwall face, the utility model discloses a nickel titanium alloy bulb guide pin is fixed the nickel titanium alloy bulb of constituteing by nickel titanium alloy top direction head 3 and nickel titanium alloy bottom spacing head 4 threaded connection at 1 top fixedly connected with of guide pin body, can make things convenient for bulb and needle body separation through threaded connection is fixed, makes things convenient for later stage maintenance to change, reduces later stage use cost, can utilize the gap of link can in time discover the firmness of link simultaneously, and maintenance operation is also timely high-efficient more.
The utility model discloses nickel titanium alloy bulb guide pin, head and pole portion adopt special technology processing, and the material is the same, and the head size of nickel titanium alloy bulb is 4.0, and 1 pole portion of guide pin body is 2.5, can cooperate the curved pole that resets of orthopedics reset tool to reset to the bone, can cooperate soft expanding to carry out the reaming, avoids soft expanding the head scheduling problem that drops
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (6)
1. The utility model provides a nickel titanium alloy bulb guide pin, includes guide pin body (1), characterized by: the top end of the guide pin body (1) is connected with a nickel-titanium alloy ball head, the upper end center position of the guide pin body (1) is provided with an integral structure top limiting head (2) protruding upwards, the cross section of the top limiting head (2) is of a T-shaped structure, the nickel-titanium alloy ball head comprises a nickel-titanium alloy top guiding head (3) sleeved at the upper end of the top limiting head (2) and a nickel-titanium alloy bottom limiting head (4) sleeved on the guide pin body (1), the inner top surface of the nickel-titanium alloy top guiding head (3) is provided with an inner limiting clamping groove (5) matched with the top limiting head (2), the inner center position of the nickel-titanium alloy bottom limiting head (4) is provided with an inner assembling through hole (6) matched with the guide pin body (1), the inner side surface of the inner assembling through hole (6) is positioned at the upper end opening position and is provided with an inner assembling clamping groove (7) matched with the top limiting head (2, the edge position of the lower surface of the nickel-titanium alloy top guide head (3) is provided with an integral internal thread assembling ring (8) protruding downwards, and the upper surface of the nickel-titanium alloy bottom limiting head (4) is provided with an external thread assembling ring (9) protruding upwards and matched with the internal thread assembling ring (8).
2. The nickel titanium alloy ball head guide pin according to claim 1, which is characterized in that: the nickel-titanium alloy top guide head (3) is screwed into the external thread assembly ring (9) through the internal thread assembly ring (8) and is fixedly connected with the nickel-titanium alloy bottom limiting head (4), and the nickel-titanium alloy top guide head (3) is fixedly connected with the top limiting head (2) through being in threaded connection with the nickel-titanium alloy bottom limiting head (4).
3. The nickel titanium alloy ball head guide pin according to claim 1, which is characterized in that: top spacing head (2) upper end have with inside spacing draw-in groove (5) matched with top installation fixed block (10), nickel titanium alloy top direction head (3) fix with top spacing head (2) upper end joint on top installation fixed block (10) through inside spacing draw-in groove (5) cover.
4. The nickel titanium alloy ball head guide pin according to claim 1, which is characterized in that: and no gap exists between the inner side arc surface of the inner assembling through hole (6) and the outer side connecting surface of the guide pin body (1).
5. The nickel titanium alloy ball head guide pin according to claim 3, wherein: the cross section of the top mounting fixing block (10) is of a regular hexagon structure, and no gap exists between the outer side surface of the top mounting fixing block (10) and the inner side connecting surface of the inner limiting clamping groove (5).
6. The nickel titanium alloy ball head guide pin according to claim 1, which is characterized in that: the outer arc-shaped surface of the nickel-titanium alloy top guide head (3) and the outer arc-shaped surface of the internal thread assembling ring (8) are the same arc-shaped surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922377617.6U CN211534734U (en) | 2019-12-25 | 2019-12-25 | Nickel-titanium alloy ball head guide pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922377617.6U CN211534734U (en) | 2019-12-25 | 2019-12-25 | Nickel-titanium alloy ball head guide pin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211534734U true CN211534734U (en) | 2020-09-22 |
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ID=72509762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922377617.6U Active CN211534734U (en) | 2019-12-25 | 2019-12-25 | Nickel-titanium alloy ball head guide pin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211534734U (en) |
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2019
- 2019-12-25 CN CN201922377617.6U patent/CN211534734U/en active Active
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