CN209751125U - Fracture reduction spreader - Google Patents
Fracture reduction spreader Download PDFInfo
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- CN209751125U CN209751125U CN201821659709.2U CN201821659709U CN209751125U CN 209751125 U CN209751125 U CN 209751125U CN 201821659709 U CN201821659709 U CN 201821659709U CN 209751125 U CN209751125 U CN 209751125U
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- traction
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- traction needle
- rod
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Abstract
The utility model provides a fracture reduction struts ware, including lead screw slide rail distraction device with be fixed in the needle mount that pulls at lead screw slide rail distraction device both ends respectively, lead screw slide rail distraction device is parallel two guide bar formula structure, just parallel two guide bar formula structure pulls in step, pulls the needle mount and is fixed in lead screw slide rail distraction device's both ends. The traction distraction tool solves the problems that the existing traction distraction tool or the structure is complex, the operation is complex, or the function is single, the structural design is unreasonable, the distraction and the traction force are inconsistent with the physiological force line, the angulation and the resetting are deformed, the traction is performed by a single rail during distraction, the synchronous traction of the double rails is difficult to realize, and the effect of distraction and the resetting is poor. The utility model belongs to the field of orthopedics traction.
Description
Technical Field
the utility model relates to a fracture reduction distractor belongs to the orthopedic treatment field.
background
At present, in the existing fracture reduction and correction treatment, a distractor is often needed to be used for traction, distraction and reduction of the fracture, and the existing traction and distraction tools are complex in structure and complex in operation, or have single function and unreasonable structural design, or have inconsistent distraction and traction directions with physiological force lines, so that angulation and reduction deformity are caused. The existing tool has unreasonable structure, which can affect the operation in the operation, and further prolong the wound, increase the bleeding, prolong the operation time and further hurt the patient; in addition, the existing tool can block X-ray shooting, influence the quality of X-ray films and increase the difficulty in film reading for doctors. In addition, the existing device is mostly pulled by a single rail when being propped open and pulled, the double rail traction is difficult to realize, the practicability is poor, and the propping open and pulling reset effect in clinical use is poor.
disclosure of Invention
The utility model aims to provide a: provides a fracture reduction distractor to solve the problems of the existing orthopedic traction tools.
In order to solve the problems, the fracture reduction distractor comprises a screw rod slide rail distraction device and traction needle fixing frames respectively fixed at two ends of the screw rod slide rail distraction device, wherein the screw rod slide rail distraction device is of a parallel double-guide-wire rod type structure, the parallel double-guide-wire rod type structure synchronously stretches and draws, and the traction needle fixing frames are fixed at two ends of the screw rod slide rail distraction device.
In the fracture reduction distractor, the lead screw sliding rail distraction device comprises two guide rods and a threaded rod which are parallel to each other, one end of each guide rod is provided with a threaded hole along the length direction, one end of the threaded rod is screwed in the threaded hole on the guide rod, the other end of the threaded rod is correspondingly provided with a driving mechanism, the driving mechanism comprises a gear box and a driving rod, the driving rod sequentially extends into the gear boxes of the two driving mechanisms along the direction vertical to the threaded rod, and the driving rods in the gear boxes of the two driving mechanisms are respectively sleeved and fixed with a first bevel gear, the other ends of the two threaded rods are respectively fixed with a second bevel gear, and the second bevel gears on the two threaded rods are respectively meshed with the first bevel gears in the two driving mechanisms in the gear box, therefore, synchronous driving of the two threaded rods is realized through the same driving rod, namely synchronous telescopic traction of the parallel double-guide-rod type structure is realized.
in the fracture reduction distractor, one of the two traction needle fixing frames is fixed at the other end of the two guide rods, and the other traction needle fixing frame is fixed on the gear boxes of the two driving mechanisms.
In the fracture reduction distractor, the two guide rods are transversely arranged in parallel and are fixedly connected through the longitudinally arranged fixed cross beam.
in the fracture reduction distractor, the other end of the guide rod is also butted with an extension rod, the traction needle fixing frame is fixed at the other end of the extension rod, when the length of the lead screw cannot reach the traction length, the extension rod is used for extending the length of the lead screw sliding rail distraction device, the traction needle fixing frame is provided with limiting bulges corresponding to the end parts of the driving mechanism and the extension rod, and the end parts of the driving mechanism and the extension rod are provided with limiting grooves corresponding to the limiting bulges for embedding the limiting bulges so as to fix the lead screw sliding rail distraction device and the traction needle fixing frame.
in the fracture reduction distractor, the traction needle fixing frame comprises a traction needle fixing ring and a U-shaped fixing frame, the U-shaped fixing frame is fixedly connected with the screw rod slide rail distraction device, the U-shaped fixing frame is a fixing plate with an arc-shaped groove arranged in the middle, the traction needle fixing ring and the U-shaped fixing frame are both vertical to the guide rod, arc-shaped holes are respectively arranged on the two opposite sides of the arc-shaped groove on the U-shaped fixing frame, and the arc-shaped holes are arranged, so that the traction needle can slide in the arc-shaped holes, thereby enabling the limb to rotate in the operation or rotate along the axis, the traction needle fixing ring is provided with connecting holes distributed along the circumferential direction, and the traction needle fixing frame has the advantages that the traction needle can be fixed at the corresponding position at will, the requirement of the limb body position in the operation is met, because the holes are arranged on the traction needle fixing frame and the U, the arc-shaped groove is of an arc-shaped structure and is concentrically arranged with the traction needle fixing ring, so that the traction needle fixing frame can be well matched with the affected limb of a patient and meet the requirement of limb position change in the operation, and the problems of interference or blocking in the operation and the like can not be caused.
In the fracture reduction distractor, the two guide rods, the two threaded rods and the two driving mechanisms are identical in structure and size, the sizes of the two guide rods, the two threaded rods and the two driving mechanisms are unified, industrial batch production is facilitated, replacement and use are facilitated, and maintenance cost is reduced.
Compared with the prior art, the utility model discloses the advantage as follows:
1. The parallel double-guide-wire rod type structure synchronously stretches and draws, and double-track simultaneous pushing and stretching drawing is realized through a connecting shaft and a gear box, so that the stretching and stretching resultant force is completely consistent with the force line of the limb, and the stretching and drawing effect is improved;
2. The traction needle can be fixed on the traction needle fixing ring or the U-shaped fixing frame arc-shaped hole along any direction parallel to the traction needle fixing ring or the U-shaped fixing frame arc-shaped hole, so that the traction operation is more convenient, and the device is of an integrated structure, has a stable structure and a good fixing effect;
3, the U-shaped fixing frame is provided with an arc-shaped groove, the bionic design is completely consistent with the anatomical structure of the affected limb, when in use, the affected limb is fixed in the U-shaped groove through the traction needle, so that the U-shaped fixing frame is well matched with the affected limb, the mounting and operation difficulty in operation is reduced, the comfort level of a patient is increased, and unnecessary injury and blockage are avoided; the traction needle can rotate along with the traction needle fixing ring or in the arc-shaped groove after being fixed on the traction needle fixing ring, so that the requirements of traction needle fixing and body position change in operation are met, and the traction needle is more flexible and convenient to use;
4. This draw needle fixing device has better rigidity and stability for the integrated design, can cooperate thin needle (diameter 2.5mm or below) to use, draw needle fixing device in the past and mostly be 5.0mm and draw the needle, cause great harm for the patient, because unique design theory, draw needle fixing device promptly the integral type, make and draw needle both ends firm and be fixed in U type structure or solid fixed ring, and can guarantee certain tension, advance simultaneously at the double track and strut when drawing, it is balanced to make and draw the needle atress, consequently even use thin needle can not lead to the fact the influence to pulling the effect yet, need not to use thick needle fixed, and simultaneously, can keep drawing the equilibrium of needle both sides traction force. Because the thin needle can deform in a certain range, even if the traction needle has a little deflection during driving, the thin traction needle can be subjected to self fine adjustment and correction in the traction process, so that the traction effect is effectively ensured, the problem that a second needle needs to be driven again if certain deflection exists during driving the first needle is avoided, and the problems of displacement, inconsistent vertical lines or greater damage and the like cannot occur;
5. When the device is used, a diseased limb is fixed at the center of the fracture reduction dilator, namely on the longitudinal axis of the device, so that the dilator main body, namely the screw rod slide rail distraction device, is positioned on the operation bed surface at the bottom of the diseased limb when in traction, and the double-track device is distributed at two sides of the limb operation area, thereby optimizing the structure of the operation area, namely, the related parts of the device are not shielded from the direct view (X-piece positive piece) or the side view (X-piece side piece), therefore, the screw rod slide rail distraction device can not cause blocking when in shooting, and the shooting quality and effect are ensured;
6. the radiation can be reduced, the existing traction device needs to be assisted by an operator to help the affected limb to maintain a specific position when a patient irradiates X-rays, the operator can not be separated from a ray area, so that the operator is exposed to the X-rays, the device does not need to be held or dragged by other personnel after being installed, the affected limb is fixed at a better position by the device, and the operator can withdraw after being fixed, so that the operator can not be exposed to the radiation;
7. The device is integrally designed to be modular, and all parts can be assembled and disassembled randomly among modules, so that the requirements of rapid assembly in operation, rapid disassembly after operation and independent disinfection of sub-modules are met, the operation steps are further simplified, and the operation time is saved.
Drawings
fig. 1 is a schematic top view of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is a schematic front view of the structure of FIG. 1;
FIG. 4 is a side view of FIG. 1;
FIG. 5 is a schematic front view of the U-shaped fixing frame;
Fig. 6 is a front view of the needle fixing ring.
Detailed Description
To make the objects, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail with reference to the accompanying drawings, and it should be understood that the specific embodiments described herein are only for explaining the present invention and are not intended to limit the present invention.
Example (b):
referring to fig. 1 to 6, the present embodiment provides a fracture reduction distractor, which includes a lead screw slide rail distraction device 1 and traction needle fixing frames 2 fixed at two ends of the lead screw slide rail distraction device 1, wherein the lead screw slide rail distraction device 1 is of a parallel double-lead-screw structure, the parallel double-lead-screw structure is synchronously stretched and pulled, and the traction needle fixing frames 2 are fixed at two ends of the lead screw slide rail distraction device 1.
the screw rod sliding rail expanding device 1 comprises two guide rods 11 and a threaded rod 12 which are parallel to each other, the two guide rods 11 are transversely arranged in parallel, the two guide rods 11 are fixedly connected through a fixed cross beam 14 which is longitudinally arranged, one ends of the two guide rods 11 are respectively provided with a threaded hole along the length direction, one end of the threaded rod 12 is rotatably arranged in the threaded hole on the guide rod 11, the other end of the threaded rod 12 is respectively and correspondingly provided with a driving mechanism 13, the driving mechanism 13 comprises a gear box 131 and a driving rod 132, the driving rod 132 sequentially extends into the gear boxes 131 of the two driving mechanisms 13 along the direction which is perpendicular to the threaded rod 12, the driving rods 132 in the gear boxes 131 of the two driving mechanisms 13 are respectively sleeved and fixedly provided with a first umbrella-shaped gear 133, the other ends of the two threaded rods 12 are respectively and fixedly provided with a second umbrella-shaped gear 134, and the second umbrella-shaped gears 134 on the two threaded rods 12 are respectively meshed with the first, thereby realize the synchronous drive of two threaded rods through same actuating lever, realize promptly the synchronous flexible of parallel two guide bar rod formula structures is pull, in two traction needle mounts 2, one of them traction needle mount 2 is fixed in the other end of two guide bars 11, and another traction needle mount 2 is fixed in on the gear box 131 of two actuating mechanism 13.
The other end of the guide rod 11 is also butted with an extension rod 15, the traction needle fixing frame 2 is fixed at the other end of the extension rod 15, when the length of the lead screw cannot reach the traction length, the extension rod 15 is used for extending the length of the lead screw sliding rail strutting device 1, the end parts of the traction needle fixing frame 2 corresponding to the driving mechanism 13 and the extension rod 15 are respectively provided with a limiting bulge, and the end parts of the driving mechanism 13 and the extension rod 15 corresponding to the limiting bulge are provided with a limiting groove used for embedding the limiting bulge so as to fix the lead screw sliding rail strutting device 1 and the traction needle fixing frame 2.
The traction needle fixing frame 2 comprises a traction needle fixing ring 21 and a U-shaped fixing frame 22, the U-shaped fixing frame 22 is fixedly connected with the screw rod sliding rail strutting device 1, the U-shaped fixing frame 22 is a fixing plate with an arc-shaped groove 23 arranged in the middle, the traction needle fixing ring 21 and the U-shaped fixing frame 22 are both vertical to the guide rod 11, arc-shaped holes 24 are respectively arranged on two opposite sides of the arc-shaped groove 23 on the U-shaped fixing frame 22, and the arc-shaped holes are arranged, so that the traction needle can slide in the arc-shaped holes or can be fixed at any position in the groove, thereby the limb rotates or rotates along the axis in the operation, the traction needle fixing ring 21 is provided with connecting holes 25 distributed along the circumferential direction, the traction needle fixing frame has the advantages that the traction needle can be fixed at any position, the requirement of the limb body position in the operation is met, because of the porous structure arranged on the ring, the traction needle fixing ring 21 and the U-shaped fixing frame 22 are, the arc-shaped groove is of an arc-shaped structure and is concentrically arranged with the traction needle fixing ring, so that the traction needle fixing frame can be well matched with a wounded limb of a patient and meet the requirement of limb position change in an operation, the problems of interference or blocking in the operation and the like cannot be caused, the structures and the sizes of the two guide rods 11, the two threaded rods 12 and the two driving mechanisms 13 are the same, industrial batch production is facilitated after the specifications of the guide rods are unified, replacement and use are facilitated, and the maintenance cost is reduced.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. Fracture reduction struts ware includes that the lead screw slide rail struts device (1) and is fixed in traction needle mount (2) at lead screw slide rail distraction device (1) both ends respectively, its characterized in that: the screw rod sliding rail strutting device (1) is of a parallel double-screw-rod type structure, the parallel double-screw-rod type structure synchronously stretches, draws and struts, and the drawing needle fixing frame (2) is fixed at two ends of the screw rod sliding rail strutting device (1).
2. The fracture reduction distractor of claim 1, wherein: lead screw slide rail distraction device (1) includes guide bar (11) and threaded rod (12) that two are parallel to each other, the threaded hole has all been seted up along length direction to the one end of two guide bar (11), the threaded hole on guide bar (11) is located soon to the one end of threaded rod (12), the other end of threaded rod (12) all corresponds and is provided with actuating mechanism (13), actuating mechanism (13) include gear box (131) and actuating lever (132), actuating lever (132) extend in proper order to gear box (131) of two actuating mechanism (13) along the direction of perpendicular to threaded rod (12) in, and all overlap on actuating lever (132) in gear box (131) of two actuating mechanism (13) and establish and be fixed with first umbrella type gear (133), all be fixed with second umbrella type gear (134) on the other end of two threaded rod (12), and second umbrella type gear (134) on two threaded rod (12) respectively with first umbrella type gear (133) in two actuating mechanism (13) at the gear box (131) The inner phases mesh.
3. The fracture reduction distractor of claim 2, wherein: among the two traction needle fixing frames (2), one traction needle fixing frame (2) is fixed at the other ends of the two guide rods (11), and the other traction needle fixing frame (2) is fixed on gear boxes (131) of the two driving mechanisms (13).
4. The fracture reduction distractor of claim 2, wherein: the two guide rods (11) are transversely arranged in parallel, and the two guide rods (11) are fixedly connected through a longitudinally arranged fixed cross beam (14).
5. the fracture reduction distractor of claim 3, wherein: the other end of guide bar (11) still is to having docked extension rod (15), traction needle mount (2) are fixed in the other end of extension rod (15), the tip department that corresponds actuating mechanism (13) and extension rod (15) or guide bar (11) on traction needle mount (2) all has spacing arch, the tip of actuating mechanism (13) and extension rod (15) corresponds spacing arch department and offers and is used for imbedding spacing bellied spacing groove to realize lead screw slide rail distraction device (1) and traction needle mount (2) fixed.
6. The fracture reduction distractor of claim 1, wherein: the traction needle fixing frame (2) comprises a traction needle fixing ring (21) and a U-shaped fixing frame (22), the U-shaped fixing frame (22) is fixedly connected with the screw rod sliding rail strutting device (1), the U-shaped fixing frame (22) is a fixing plate with an arc-shaped groove (23) formed in the middle, the traction needle fixing ring (21) and the U-shaped fixing frame (22) are perpendicular to the guide rod (11), arc-shaped holes (24) are formed in two opposite sides of the arc-shaped groove (23) on the U-shaped fixing frame (22) respectively, connecting holes (25) are formed in the traction needle fixing ring (21) in a distributed mode along the circumferential direction, and the traction needle fixing ring (21) and the U-shaped fixing frame (22) are fixedly connected through pins (26) sequentially penetrating through the connecting holes (25) and the arc-shaped holes (24).
7. The fracture reduction distractor of claim 2, wherein: the two guide rods (11), the two threaded rods (12) and the two driving mechanisms (13) are identical in structure and size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821659709.2U CN209751125U (en) | 2018-10-13 | 2018-10-13 | Fracture reduction spreader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821659709.2U CN209751125U (en) | 2018-10-13 | 2018-10-13 | Fracture reduction spreader |
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| Publication Number | Publication Date |
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| CN209751125U true CN209751125U (en) | 2019-12-10 |
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| CN201821659709.2U Active CN209751125U (en) | 2018-10-13 | 2018-10-13 | Fracture reduction spreader |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109199474A (en) * | 2018-10-13 | 2019-01-15 | 范士洁 | Reduction of the fracture dilator |
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2018
- 2018-10-13 CN CN201821659709.2U patent/CN209751125U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109199474A (en) * | 2018-10-13 | 2019-01-15 | 范士洁 | Reduction of the fracture dilator |
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