CN212382727U - Steel wire auxiliary fixing device - Google Patents
Steel wire auxiliary fixing device Download PDFInfo
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- CN212382727U CN212382727U CN202021043435.1U CN202021043435U CN212382727U CN 212382727 U CN212382727 U CN 212382727U CN 202021043435 U CN202021043435 U CN 202021043435U CN 212382727 U CN212382727 U CN 212382727U
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- steel wire
- base
- top cover
- threaded shaft
- piece
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 107
- 239000010959 steel Substances 0.000 title claims abstract description 107
- 230000003287 optical effect Effects 0.000 claims description 15
- 230000008878 coupling Effects 0.000 claims description 7
- 238000010168 coupling process Methods 0.000 claims description 7
- 238000005859 coupling reaction Methods 0.000 claims description 7
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 210000000689 upper leg Anatomy 0.000 abstract description 17
- 230000000694 effects Effects 0.000 abstract description 6
- 210000000988 bone and bone Anatomy 0.000 abstract description 3
- 210000004394 hip joint Anatomy 0.000 description 8
- 210000001694 thigh bone Anatomy 0.000 description 8
- 210000001519 tissue Anatomy 0.000 description 6
- 230000004308 accommodation Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 210000005065 subchondral bone plate Anatomy 0.000 description 3
- 208000002193 Pain Diseases 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 208000006820 Arthralgia Diseases 0.000 description 1
- 208000008558 Osteophyte Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 210000000588 acetabulum Anatomy 0.000 description 1
- 210000001188 articular cartilage Anatomy 0.000 description 1
- 239000002639 bone cement Substances 0.000 description 1
- 210000000845 cartilage Anatomy 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000011540 hip replacement Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000030214 innervation Effects 0.000 description 1
- 230000007659 motor function Effects 0.000 description 1
- 210000005036 nerve Anatomy 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 230000035755 proliferation Effects 0.000 description 1
- 230000009528 severe injury Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 230000008733 trauma Effects 0.000 description 1
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Abstract
The utility model provides a steel wire auxiliary fixing device, which comprises a base, a top cover and a strutting piece; the bottom surface of the base is provided with an anti-skid structure, the top surface of the top cover is provided with a steel wire limiting structure, and the opening piece is connected with the base and the top cover and can drive the top cover to move towards the direction close to or far away from the base; after the steel wire is primarily bound with the femoral bone, the steel wire auxiliary fixing device of the utility model is used for driving the top cover to move towards the direction away from the base, and the top cover is externally supported, thereby tensioning the steel wire and tightening and fixing the steel wire on the femoral bone; the tightening force of the steel wire enables the anti-skid structure arranged on the bottom surface of the base to be tightly combined with the femoral surface, so that the base is firmly positioned and fixed on a certain position of the femur; firm fixed base has further spacing the position of having lived the steel wire through the steel wire limit structure who sets up on the top cap, plays the effect that prevents the steel wire and slide. Use the utility model discloses an after the supplementary fixing device of steel wire, the fixed dynamics of steel wire is big, can not take place not hard up to slide, and it is effectual to perform the operation.
Description
Technical Field
The utility model relates to a joint replacement technical field, concretely relates to be used for preventing the supplementary fixing device that the steel wire slided when using the steel wire to the thighbone that takes place the splitting fixed.
Background
The main purposes of artificial joint replacement are to relieve joint pain, correct deformity, and restore and improve the motor function of the joint. The hip joint is the largest weight bearing joint of the human body. The smooth surface of the hip joint cartilage has no innervation, and the movement is very flexible under normal conditions, so that the pain can not occur. When articular cartilage suffers severe damage, subchondral bone is exposed, and secondary wear, hardening, and proliferation form osteophytes. The subchondral bone has nerves and a rough surface, and continuous and severe pain and swelling appear when the subchondral bone rubs with each other, further aggravate along with the progress of the disease, and have limited activity. Eventually, various non-surgical procedures fail, requiring hip replacement.
The hip joint replacement is also called artificial hip joint replacement, is to fix an artificial prosthesis comprising a femur part and an acetabulum part on normal bone by using bone cement and screws to replace a diseased joint and reconstruct the normal function of the hip joint of a patient, and is a mature and reliable treatment means.
In the hip joint replacement, if the femur is split when a femur handle is driven or after the hip joint replacement, the periphery of the femoral prosthesis of part of patients is fractured due to trauma, and when the hip joint revision operation is needed, the femur is bound and fixed by steel wires. The phenomenon of slippage and looseness of the bundled steel wires is often found during operation and postoperative follow-up. The reason is that the thickness of the femoral shaft varies, and the wire easily slips from a thick place to a thin place. In addition, when the tying and knotting of the steel wires are finished, the steel wires are easy to loosen; in order to firmly fix the steel wire and avoid slippage and ensure long-time effective fixation, the device is designed.
SUMMERY OF THE UTILITY MODEL
Therefore, the to-be-solved technical problem of the utility model lies in overcoming among the prior art and taking place easily when adopting the steel wire to tie up the thighbone not hard up technical defect that slides to provide one kind and can help the steel wire to tighten up and can guarantee long-time effective fixed steel wire auxiliary fixture.
Therefore, the utility model provides a fixing device is assisted to steel wire, include:
the base is provided with a base top surface and a base bottom surface which are oppositely arranged, and an anti-skidding structure is arranged on the base bottom surface;
the top cover is provided with a top cover top surface and a top cover bottom surface which are oppositely arranged, and a steel wire limiting structure is arranged on the top cover top surface;
the opening piece is connected with the base and the top cover, so that the bottom surface of the top cover is opposite to the top surface of the base, and the top cover can be driven to move towards the direction close to or far away from the base.
Preferably, the spreader includes a threaded shaft, a rotatable connection member disposed at one end of the threaded shaft, and a drive structure disposed at the other end of the threaded shaft;
the top cover is provided with a threaded hole which can be matched and screwed with the threaded shaft, and the base is provided with a connecting hole which can be connected with the rotatable connecting piece in a rotating matching way;
after the rotatable connecting piece is connected with the connecting hole in a matching mode, when the opening piece rotates, the rotatable connecting piece only rotates inside the connecting hole and does not move axially relative to the connecting hole.
As a preferable mode, the rotatable coupling member includes:
a first circular member provided at one end of the threaded shaft;
one end of the optical shaft is fixedly connected with the end face of the first circular part, and the central axis of the optical shaft is superposed with the central axis of the threaded shaft;
and the end surface of the second circular part is fixedly connected with the other end of the optical axis.
Preferably, one end of the connecting hole, which is located on the bottom surface of the base, is flared to form a second annular accommodating space for rotatably accommodating the second circular member.
Preferably, the end of the connecting hole on the top surface of the base is flared to form a first annular receiving space for rotatably receiving the first circular member.
Preferably, the driving structure is a straight groove or a cross groove arranged at the other end of the threaded shaft.
Preferably, the anti-slip structure is a tapered tip formed on the bottom surface of the base.
As a preferred scheme, the steel wire limiting structure is a steel wire accommodating groove formed in the top surface of the top cover.
As a preferred scheme, the steel wire limiting structure is a tunnel through hole formed in the top cover.
Preferably, the end of the tunnel through hole facing the bottom surface of the top cover is pointed or curved.
The technical scheme provided by the utility model, following advantage has:
1. the utility model discloses a steel wire auxiliary fixing device, which comprises a base, a top cover and a strutting piece; the bottom surface of the base is provided with an anti-skid structure, the top surface of the top cover is provided with a steel wire limiting structure, and the opening piece is connected with the base and the top cover and can drive the top cover to move towards the direction close to or far away from the base; when the steel wire auxiliary fixing device is used, the steel wire for binding the thighbone passes through the steel wire limiting structure, and after the binding is finished and knotted, the external force is used for driving the strutting piece to drive the top cover to move towards the direction away from the base, so that the top cover is externally propped to further tighten the steel wire, and the steel wire is tightened and fixed on the thighbone; after the steel wire is tightened, the anti-skid structure arranged on the bottom surface of the base is tightly combined with the femoral surface by the tightening force of the steel wire, so that the base is firmly positioned and fixed on a certain position of the femur; firm fixed base has further spacing the position of having lived the steel wire through the steel wire limit structure who sets up on the top cap, plays the effect that prevents the steel wire and slide. Use the utility model discloses an after the supplementary fixing device of steel wire, the fixed dynamics of steel wire is big, can not take place not hard up to slide, and it is effectual to perform the operation.
2. The utility model discloses a steel wire auxiliary fixing device, the strutting piece comprises a threaded shaft, a rotatable connecting piece arranged at one end of the threaded shaft and a driving structure arranged at the other end of the threaded shaft; the rotatable connecting piece is rotatably connected with a connecting hole arranged on the base, and when the opening piece rotates, the rotatable connecting piece only rotates in the connecting hole and does not axially move; the threaded shaft is matched and connected with a threaded hole arranged on the top cover; when using exogenic action and drive structure, and then make the screw spindle rotate, base and top cap are spacing to artifical supplementary, can drive the relative base of top cap through the screw spindle and remove, and then tighten up or relax the steel wire.
3. The utility model discloses a fixing device is assisted to steel wire, rotatable connecting piece are the structural style of first circular member, optical axis and first circular member, and when strutting the rotation, the optical axis rotates inside the connecting hole, and first circular member and second circular member guarantee that the optical axis does not take place the axial motion for the connecting hole.
4. The utility model discloses a fixing device is assisted to steel wire, the position that is located base top surface and base top surface of connecting hole expand respectively outward and form first annular accommodation space and the second annular accommodation space that is used for rotatable first circular component and the second circular component of holding, and when strutting piece rotates, first circular component and second circular component avoid dragging the damage human tissue at the inside initiative of first annular accommodation space and second annular accommodation space respectively.
5. The utility model discloses a fixing device is assisted to steel wire, drive structure are a word recess or cross recess, and the instrument application of force drive that conveniently adopts similar screwdriver struts the piece and rotates. The anti-skidding structure is the shaping taper point in the base bottom surface line, when strutting the piece and rotate and make the top cap keep away from the base in order to prop tight steel wire, the taper point pierces the thighbone easily under the tight effect of tightening of steel wire to firm location is fixed on the thighbone.
6. The steel wire auxiliary fixing device has the advantages that the steel wire limiting structure is the steel wire accommodating groove formed in the top cover, when the steel wire is used for binding the thighbone, the steel wire directly passes through the steel wire accommodating groove, and the operation is convenient; the steel wire limiting structure can also be a tunnel through hole arranged on the top cover, when the steel wire is used for binding the femur, the steel wire is inserted into one end of the tunnel through hole and extends out of the other end of the tunnel through hole, the tunnel through hole structure is independent of human tissues, and the steel wire cannot bind part of the human tissues into the tunnel through hole, so that the tunnel through hole structure is convenient to disassemble; furthermore, the end part of the tunnel through hole, which faces one side of the bottom surface of the top cover, is pointed or arc-shaped, so that the tied steel wires are stably pointed or arc-shaped at the topmost position, and the left and right displacement is avoided.
Drawings
In order to more clearly illustrate the technical solutions in the prior art or the embodiments of the present invention, the drawings used in the description of the prior art or the embodiments are briefly introduced below.
Fig. 1 is the overall structure schematic diagram of the steel wire auxiliary fixing device of the present invention.
Fig. 2 is an exploded view of fig. 1.
Fig. 3 is a perspective view of the base of fig. 1.
Fig. 4 is a schematic view of another structural top cover.
Reference numerals: 1. a base; 11. a base top surface; 12. a base bottom surface; 13. connecting holes; 131. a first annular receiving space; 132. a second annular receiving space; 2. a top cover; 21. a top cover top surface; 22. a top cover bottom surface; 23. a threaded hole; 24. a steel wire accommodating groove; 25. a tunnel through hole; 3. a spreader; 31. a threaded shaft; 32. a rotatable connection; 321. a first circular member; 322. an optical axis; 323. a second circular member; 33. a cross-shaped groove; 4. a conical tip.
Detailed Description
The technical solution of the present invention will be described in detail with reference to the accompanying drawings.
Examples
The present embodiment provides a steel wire auxiliary fixing device, as shown in fig. 1 to 3, including: the base 1 is provided with a base top surface 11 and a base bottom surface 12 which are oppositely arranged, and an anti-skid structure is arranged on the base bottom surface 12; the top cover 2 is provided with a top cover top surface 21 and a top cover bottom surface 22 which are oppositely arranged, and a steel wire limiting structure is arranged on the top cover top surface 21; the opening part 3 is connected with the base 1 and the top cover 2, so that the bottom surface 22 of the top cover is opposite to the top surface 11 of the base, and the top cover 2 can be driven to move towards the direction close to or far away from the base 1.
When the auxiliary steel wire fixing device is used, a steel wire for binding the femur penetrates through the steel wire limiting structure, after tying and knotting are finished, the external force is used for driving the opening part 3, the top cover 2 is driven to move towards the direction far away from the base 1, the top cover 2 is externally opened, and then the steel wire is tensioned, so that the steel wire is tightened and fixed on the femur; after the steel wires are tightened, the anti-skid structures arranged on the bottom surface 12 of the base are tightly combined with the femoral surface by the tightening force of the steel wires, so that the base 1 is firmly positioned and fixed on a certain position of the femur; firm fixed base 1 has further spacing the position of having lived the steel wire through the steel wire limit structure that sets up on top cap 2, plays the effect that prevents the steel wire and slide. After using the supplementary fixing device of steel wire of this embodiment, the fixed dynamics of steel wire is big, can not take place not hard up and slide, and it is effectual to operate.
As shown in fig. 2, the distractor 3 comprises a threaded shaft 31, a rotatable coupling member 32 provided at one end of the threaded shaft 31, and a driving structure provided at the other end of the threaded shaft 31; the top cover 2 is provided with a threaded hole 23 which can be matched and screwed with the threaded shaft 31, and the base 1 is provided with a connecting hole 13 which can be rotationally matched and connected with the rotatable connecting piece 32; after the rotatable connecting piece 32 is matched and connected with the connecting hole 13, when the opening piece 3 rotates, the rotatable connecting piece 32 only rotates inside the connecting hole 13 and does not axially move relative to the connecting hole 13. When using exogenic action and drive structure, and then make threaded shaft 31 rotate, base 1 and top cap 2 are spacing to artifical supplementary, can drive top cap 2 through threaded shaft 31 and remove 1 base relatively, and then tighten up or relax the steel wire.
Specifically, the rotatable coupling 32 includes: a first circular member 321 provided at one end of the threaded shaft 31; an optical axis 323, one end of which is fixedly connected to the end surface of the first circular member 321, and a central axis of the optical axis 323 coincides with a central axis of the threaded shaft 31; and the end surface of the second circular member 322 is fixedly connected with the other end of the optical axis 323. When the spreader 3 rotates, the optical axis 323 rotates inside the coupling hole 13, and the first and second circular members 321 and 322 serve to restrain the optical axis 323 from moving axially relative to the coupling hole 13.
The end of the connecting hole 13 located on the bottom surface 12 of the base is flared to form a second annular receiving space 132 for rotatably receiving the second circular member 322. One end of the connecting hole 13 on the base top surface 11 is flared to form a first annular receiving space 131 for rotatably receiving the first circular member. When the spreader 3 rotates, the first circular member 321 and the second circular member 322 respectively actively move in the first annular receiving space 131 and the second annular receiving space 132, so as to prevent human tissue from being damaged by pulling.
The driving structure is a straight groove or a cross groove 33 arranged at the other end part of the threaded shaft. The tool similar to a screwdriver is conveniently adopted to apply force to drive the opening part to rotate. The anti-slip structure is a conical tip 4 formed on the base bottom surface 12. When the spreader 3 is rotated so that the top cover 2 is away from the base 1 to tighten the steel wire, the tapered tip 4 easily penetrates into the femur under the tightening action of the steel wire, thereby being firmly fixed in position on the femur.
The steel wire limit structure is a steel wire accommodating groove 24 formed in the top surface 21 of the top cover. When adopting the steel wire to tie up the thighbone, directly make the steel wire pass the steel wire and hold the recess can, convenient operation.
As a variant, as shown in fig. 4, the wire-limiting structure may also be a tunnel through hole 25 formed in the top cover 2. The end of the tunnel through hole 25 facing the bottom surface 22 of the top cover is pointed or curved. When the steel wire is used for binding the femur, the steel wire is inserted into one end of the tunnel through hole 25 and extends out of the other end, the tunnel through hole structure is independent of human tissues, and the steel wire cannot bind part of the human tissues into the tunnel through hole 25, so that the steel wire is convenient to disassemble; the end part of the tunnel through hole 25 facing to the top cover bottom surface 22 is pointed or arc-shaped, so that the tied steel wire is stably pointed or arc-shaped at the topmost position, and the left and right displacement is avoided.
The application method of the auxiliary fixing device for the steel wire in the embodiment is as follows: when a femur needs to be bound by using a steel wire, firstly, an assembled steel wire auxiliary fixing device is attached to a corresponding position of the femur, preferably to a non-damaged position, specifically, one side of a base bottom surface 12 provided with a conical tip 4 is tightly attached to the femoral surface, the steel wire is wound around the femur and simultaneously passes through a steel wire accommodating groove 24 or a tunnel through hole 25, the steel wire is tightly wound for a plurality of circles and then knotted, a tool is combined with a cross groove 33 to drive a threaded shaft 31 of a spreading member 3 to rotate, the positions of a base 1 and a top cover 2 are fixed in an auxiliary mode, the top cover 2 is gradually far away from the base 1 to move, the top cover 2 is externally supported, and the steel wire is further tensioned, so; when the steel wire is tightened, the conical tip 4 arranged on the bottom surface 12 of the base is tightly combined with the femoral surface by the tightening force of the steel wire, so that the base 1 is firmly positioned and fixed on the femur; firm fixed base 1 further holds the position that recess 24 or tunnel through-hole 5 had stopped the steel wire through the steel wire that sets up on top cap 2, plays the effect that prevents the steel wire and slide.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.
Claims (10)
1. The utility model provides a steel wire auxiliary fixture which characterized in that: the method comprises the following steps:
the anti-skid device comprises a base (1) and a base frame, wherein the base frame is provided with a base top surface (11) and a base bottom surface (12) which are oppositely arranged, and an anti-skid structure is arranged on the base bottom surface (12);
the top cover (2) is provided with a top cover top surface (21) and a top cover bottom surface (22) which are oppositely arranged, and a steel wire limiting structure is arranged on the top cover top surface (21);
the opening piece (3) is connected with the base (1) and the top cover (2), so that the bottom surface (22) of the top cover is opposite to the top surface (11) of the base, and the top cover (2) can be driven to move towards the direction close to or far away from the base (1).
2. The wire assist fixture as claimed in claim 1, wherein: the strutting piece (3) comprises a threaded shaft (31), a rotatable connecting piece (32) arranged at one end of the threaded shaft (31), and a driving structure arranged at the other end of the threaded shaft (31);
the top cover (2) is provided with a threaded hole (23) which can be matched and screwed with the threaded shaft (31), and the base (1) is provided with a connecting hole (13) which can be in rotating matching connection with the rotatable connecting piece (32);
rotatable coupling spare (32) with connecting hole (13) cooperation is connected the back, when strutting piece (3) and rotating, rotatable coupling spare (32) are only in connecting hole (13) inside rotates, do not relative connecting hole (13) take place axial displacement.
3. The wire assist fixture as claimed in claim 2, wherein: the rotatable connection (32) comprises:
a first circular member (321) provided at one end of the threaded shaft (31);
one end of the optical axis (323) is fixedly connected with the end face of the first circular piece (321), and the central axis of the optical axis (323) is superposed with the central axis of the threaded shaft (31);
and the end surface of the second circular piece (322) is fixedly connected with the other end of the optical axis (323).
4. The wire assist fixture according to claim 3, wherein: one end of the connecting hole (13) positioned on the bottom surface (12) of the base is flared to form a second annular accommodating space (132) for rotatably accommodating the second circular piece (322).
5. The wire assist fixture as claimed in claim 4, wherein: one end of the connecting hole (13) positioned on the top surface (11) of the base is flared to form a first annular accommodating space (131) for rotatably accommodating the first circular piece.
6. The wire assist fixture as claimed in claim 2, wherein: the driving structure is a straight groove or a cross groove (33) arranged at the end part of the other end of the threaded shaft.
7. The wire assist fixture as claimed in claim 1, wherein: the anti-slip structure is a conical tip (4) formed on the bottom surface (12) of the base.
8. The wire assist fixture as claimed in claim 1, wherein: the steel wire limiting structure is a steel wire accommodating groove (24) formed in the top surface (21) of the top cover.
9. The wire assist fixture as claimed in claim 1, wherein: the steel wire limiting structure is formed in a tunnel through hole (25) in the top cover (2).
10. The wire assist fixture as claimed in claim 9, wherein: the end part of the tunnel through hole (25) facing to one side of the top cover bottom surface (22) is pointed or arc-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021043435.1U CN212382727U (en) | 2020-06-09 | 2020-06-09 | Steel wire auxiliary fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021043435.1U CN212382727U (en) | 2020-06-09 | 2020-06-09 | Steel wire auxiliary fixing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212382727U true CN212382727U (en) | 2021-01-22 |
Family
ID=74254410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021043435.1U Active CN212382727U (en) | 2020-06-09 | 2020-06-09 | Steel wire auxiliary fixing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212382727U (en) |
-
2020
- 2020-06-09 CN CN202021043435.1U patent/CN212382727U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221202 Address after: G358, 3rd floor, building 1, yard 9, CHENGWAN street, Haidian District, Beijing 100094 Patentee after: Beijing natong Medical Research Institute Co.,Ltd. Address before: 266035 Hefei Road, Shibei District, Qingdao, Shandong 758 Patentee before: QILU HOSPITAL OF SHANDONG University (QINGDAO) |
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| TR01 | Transfer of patent right |