CN209996449U - Reduction holding device for difficult renaturation intertrochanteric fracture - Google Patents
Reduction holding device for difficult renaturation intertrochanteric fracture Download PDFInfo
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- CN209996449U CN209996449U CN201920249963.3U CN201920249963U CN209996449U CN 209996449 U CN209996449 U CN 209996449U CN 201920249963 U CN201920249963 U CN 201920249963U CN 209996449 U CN209996449 U CN 209996449U
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Abstract
The utility model discloses a difficult renaturation intertrochanteric fracture resets controlling device, relate to the medical instrument field, this controlling device is including controlling pincers, be equipped with the limiting plate of adjusting the degree of opening and shutting on the pincers of holding, roof pressure mechanism, including the dead lever of controlling pincers of perpendicular to, be equipped with the bowl-shaped link that spreads all over the connecting hole on the dead lever, can wear to be equipped with threaded connection rod through wantonly connecting hole on the link, climbing mechanism, include can change self height's link mechanism through the rotation adjusting lever.
Description
Technical Field
The utility model relates to the field of medical equipment, especially, relate to kinds of difficult renaturation intertrochanteric fracture handle device that resets.
Background
In the intertrochanteric fracture operation, a traction bed is needed for traction, the bone stubbles at the fracture ends can be tilted due to the muscle strength under the action of continuous traction, and the tilted bone stubbles are required to be pressed and returned in the operation process so as to continue the operation.
In a conventional surgical operation for covering a bone stubble, an incision is made at a fracture end, and the raised bone stubble is directly pressed down by holding an object such as a knock rod or the like, or the raised part is clamped by holding forceps, and simultaneously, the limbs of a patient are manually supported from below by a support, so that the surgical operation is performed in cooperation with the support.
However, for the difficult-to-renature intertrochanteric fracture operation, the operation time is long, and in the long-time operation process, when the bone stubbles are pressed by using articles such as a handheld ejector rod and the like and the fractured limbs are supported by using a periosteum opener, the stable stress is difficult to maintain, and the bone stubbles can be loosened and even tilted again; meanwhile, the holding forceps are used for fixing bone stubbles, a large incision needs to be cut at the fracture end, the influence on blood circulation is more serious when the incision is larger, the acting force of the holding forceps is larger, the bone stubbles are often weaker and sharp, and the fracture of the bone stubbles is easily caused by the excessive acting force; in addition, since the limb of the patient is supported by different fracture parts, the medical staff is required to manually adjust the support, and it is difficult to maintain a stable support state.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that can carry out mechanical fastening at the distal end, and the required incision of fracture end is very little, can not destroy the blood circulation, thereby can adjust the bone stubble of the position adaptation perk of screw ejector pin wantonly and reach best roof pressure state to have stable climbing mechanism and can satisfy and carry out the fracture between the difficult renaturation tuberosity that supports to the limbs under the various high requirement and reset controlling device.
In order to solve the technical problem, the utility model discloses the technical scheme who takes is:
difficult renaturation intertrochanteric fracture resets and holds device, its characterized in that includes:
holding forceps for the centre gripping is on patient's limbs, holding forceps includes through the mutual articulated left side pincers handle of round pin axle and right side pincers handle, be connected with the limiting plate between left side pincers handle and the right side pincers handle, along the arc hole that some were seted up to the orbit of opening and shutting of holding forceps on the limiting plate, the end fixed connection of left side pincers handle and limiting plate, be fixed with on the right side pincers handle and can be in the gliding stop bolt of arc hole, the cover is equipped with the nut rather than the screw thread matching on the stop bolt.
top pressing mechanism, including the dead lever of coaxial fixation on the round pin axle, the end that the dead lever kept away from the pincers of controlling is fixed with the link, the link is the bowl-shaped structure of back-off, and sets up a plurality of connecting holes that have connecting thread on its arc surface, the below of link is equipped with screw thread ejector pin, the screw thread ejector pin can penetrate in arbitrary connecting hole, and its upper end is through the locking of screw in nut.
climbing mechanism, include link mechanism, fix the jack-up board in the link mechanism top and fix the unable adjustment base in the link mechanism below, wherein, link mechanism includes the connecting rod that two vertical and left right intervals set up, transversely runs through on two connecting rods and has adjusted the pole, adjust pole and connecting rod threaded connection and end outwards extend, and it has the second connecting rod to articulate in the top of every connecting rod, and two second connecting rods are splayed structure, and it has the third connecting rod to articulate in the below of every connecting rod, and two third connecting rods are the splayed structure of falling.
, the linkage mechanism is two, and there is a space between the two linkage mechanisms for accommodating the limbs of the patient.
, the technical proposal is that the jacking plate is an arc plate which is fit with the limb appearance.
, the non-extending end of the adjusting rod is fixed with a rotating block, the rotating block is vertical to the adjusting rod and is provided with a rotating hole, and a rotating handle is arranged inside the rotating hole in a penetrating way.
, the connecting hole is a universal locking hole.
the technical proposal is that the lower ends of the left forceps handle and the right forceps handle are symmetrically fixed with clamping plates for clamping bones.
, the technical proposal is that the joint surface of the plywood and the bone is a cambered surface.
, the technical proposal is that the bottom end surface of the threaded mandril is distributed with fixed bulges.
Adopt the produced beneficial effect of above-mentioned technical scheme to lie in:
the holding forceps are fixed at the far end of the fracture, so that the holding forceps can be fixed at the intact bone, and are more stable, the holding forceps are connected with the jacking mechanism with the threaded jacking rod to jack the tilted bone stubbles, and thus, three-point fixation is adopted, the condition that manual support is needed in an operation is replaced, and the balanced stress of the bone stubbles and the stable pressing structure can be still ensured in the long-time operation process. Meanwhile, the condition that bone stubbles are loosened and even tilted again due to unbalanced or unstable stress in the operation is avoided.
And because the fracture end only needs to be implanted with the threaded mandril for pressing, the required incision is smaller, thereby avoiding the situation that the blood circulation is damaged due to overlarge incision, the compounding time is long, and even the fracture cannot be healed, and improving the minimally invasive property of the operation. And the pressing force of the threaded ejector rod is mild, so that the fracture of bone stubbles at weak positions and the damage to the anatomical structure caused by overlarge pressing force are avoided.
Simultaneously, set up the connecting hole of a plurality of different positions and direction on the link, the screw ejector pin can penetrate from arbitrary connecting hole, and then makes the screw ejector pin match with the angle of raising of bone stubble to avoid the weak department of bone stubble, thereby reach the most suitable roof pressure position, firm and effectual pressure covers the bone stubble.
And, still being equipped with climbing mechanism in cooperation with the roof pressure mechanism, fix and carry out effective and stable support to the unsettled limbs of patient subaerial during the operation, can adjust the support height simultaneously in order to cooperate different support demands to with the combined action of screw ejector pin, reach and stably just effectual the pressure effect of covering that resets to the perk bone stubble.
Drawings
The present invention will be described in further detail at with reference to the following drawings and detailed description.
FIG. 1 is a schematic structural view of the present invention in use;
fig. 2 is a left side view schematic structural view of the holding forceps of the present invention;
fig. 3 is a schematic view of an axial measurement structure of the holding forceps of the present invention;
fig. 4 is a schematic structural diagram of the jacking mechanism of the present invention;
fig. 5 is a schematic side view of the jacking mechanism of the present invention.
Detailed Description
The technical solution in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are partial embodiments of the present invention, rather than all embodiments.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be embodied in other specific forms other than those described herein, and one skilled in the art may similarly push without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
As shown in fig. 1 to 5, the difficult renaturation intertrochanteric fracture reduction holding device comprises a holding forceps 1, a jacking mechanism 2 and a jacking mechanism 3, wherein the holding forceps 1 is used for being clamped on a limb of a patient and comprises a left forceps handle 11 and a right forceps handle 12 which are hinged to each other through a pin shaft, a limiting plate 13 is connected between the left forceps handle 11 and the right forceps handle 12, an arc-shaped hole 130 is formed in the limiting plate 13 along the opening and closing track of the holding forceps 1, the left forceps handle 11 is fixedly connected with an end of the limiting plate 13, a limiting bolt 121 capable of sliding in the arc-shaped hole 130 is fixed on the right forceps handle 12, and a nut matched with the limiting bolt 121 in a threaded manner is sleeved on the limiting bolt 121.
The jacking mechanism 2 comprises a fixing rod 21 coaxially fixed on a pin shaft, a connecting frame 22 is fixed at the end of the fixing rod 21 far away from the holding forceps 1, the connecting frame 22 is of a reversed bowl-shaped structure, a plurality of connecting holes 220 with connecting threads are formed in the circular arc surface of the connecting frame 22, a threaded mandril 221 is arranged below the connecting frame 22, the threaded mandril 221 can penetrate into any connecting hole 220, and the upper end of the threaded mandril is locked by a screwed nut.
The jacking mechanism 3 comprises a link mechanism 31, a jacking plate 32 fixed above the link mechanism 31 and a fixed base 33 fixed below the link mechanism 31, wherein the link mechanism 31 comprises two -th connecting rods 311 which are vertically arranged at left and right intervals, an adjusting rod 310 transversely penetrates through the two -th connecting rods 311, the adjusting rod 310 is in threaded connection with the -th connecting rod 31, the end of the adjusting rod extends outwards, a second connecting rod 312 is hinged above the -th connecting rod 311 of each , the two second connecting rods 312 are of a splayed structure, a third connecting rod 313 is hinged below the -th connecting rod 311 of each , and the two third connecting rods 313 are of an inverted splayed structure.
The holding device is mainly applied to the situations of intertrochanteric fracture, partial femoral shaft fracture, subtrochanteric fracture and the like, in the using process, firstly, a patient is fixed on an operating bed in an operating posture, at the moment, limbs of the patient can be pulled to be in a suspended state, and due to the falling force generated by the action of gravity, bone stubbles cannot be aligned, so that a jacking mechanism 3 needs to be placed below the suspended limbs to support the limbs, and the limbs of the patient can be kept in a stable state to enable the bone stubbles to be aligned.
After the limb is supported by the jacking mechanism 3, according to the fracture position, at the far end which is a cut with a proper distance from the fracture position and is an undamaged part of the bone, the nut on the limiting bolt 121 is unscrewed, the holding forceps 1 is clamped on the bone at the cut, the adjusting mechanism 2 faces the direction of the fracture end, and at the moment, the fixing rod 21 is vertical to the plane of the holding forceps 1 and the connecting frame 22 is positioned above the fracture position. After the holding forceps 1 are clamped, the limit bolt 121 is locked, so that the holding forceps 1 are fixedly clamped above the limb. A small incision capable of being implanted with the threaded mandril 221 is cut at a proper position of the tilting and breaking position of the bone stubble, and the position is a position which enables the bone stubble to be stressed and pressed and can not be damaged due to self weakness. And then, the connecting hole 220 at a proper position is selected to be screwed into the threaded mandril 221 and locked by a nut, so that the threaded mandril 221 can be implanted from a small incision and can effectively stabilize bone stubbles and press and cover the bone stubbles at an optimal angle position, the pressing and covering operation of the tilted bone stubbles is completed by matching with the jacking mechanism 3, and the holding forceps 1 and the jacking mechanism 3 are respectively removed after the pressing and covering operation is completed to perform post-operation treatment.
The holding forceps 1 are fixed at the far end of the fracture, so that the holding forceps 1 can be fixed at the intact bone, and the holding forceps 1 are connected with the jacking mechanism 2 with the threaded jacking rod 221 to jack the tilted bone stubbles, so that three-point fixing is adopted, the situation that manual supporting is needed in an operation is replaced, and the balanced stress of the bone stubbles and the stable structure of the overlaying structure can be ensured in the long-time operation process. Meanwhile, the condition that bone stubbles are loosened and even tilted again due to unbalanced or unstable stress in the operation is avoided. And because the fracture end is only required to be implanted with the threaded mandril 221 for pressing, the required incision is smaller, thereby avoiding the situation that the blood circulation is damaged due to overlarge incision, the compounding time is long, and even the fracture cannot be healed, and improving the minimally invasive property of the operation. And the pressing force of the threaded mandril 221 is mild, so that the fracture of bone stubbles at weak positions and the damage to anatomical structures caused by overlarge pressing force are avoided.
Meanwhile, a plurality of connecting holes 220 in different positions and directions are formed in the connecting frame 22, the threaded mandril 221 can penetrate through any connecting hole 220, the threaded mandril 221 is matched with the tilting angle of the bone stubbles, and the weak positions of the bone stubbles are avoided, so that the most appropriate jacking position is achieved, and the bone stubbles are stably and effectively pressed. And, cooperating roof pressure mechanism 2 still to be equipped with climbing mechanism 3, fix and carry out effective and stable support to patient's unsettled limbs subaerial during the operation, can adjust the support height simultaneously in order to cooperate different support demands to with screw ejector pin 221 combined action, reach stable and effectual the pressure effect of covering that resets of perk bone stubble.
In order to make the supporting of the jacking mechanism 3 more stable, the number of the link mechanisms 31 is two, and a space capable of accommodating the limbs of the patient is arranged between the two link mechanisms 31, the two link mechanisms 32 act together, the bottom of the two link mechanisms 32 form a stable quadrilateral structure, the fractured limbs are placed on the jacking plates 32 above the two link mechanisms, so that a larger supporting force can be provided, the placing of the limbs is more balanced, no shaking is generated, the smooth operation is ensured, meanwhile, the jacking plates 32 are arranged to be arc-shaped plates fitted with the appearances of the limbs, the limbs are wound in the jacking plates, steps are carried out, the shaking of the limbs in the operation is prevented, and the stability of supporting and stress is increased.
In the known lifting mechanism 3, the lifting height is changed by rotating the adjusting lever 310, so that a rotating block 3101 is fixed to the non-extending end of the adjusting lever 310, a rotating hole 3102 is formed in the rotating block perpendicularly to the adjusting lever 310, and a rotating grip 3103 is formed inside the rotating hole 3102. So, it is rotatory to drive regulation pole 33 through holding rotatory grip 332 and rotate to change climbing mechanism 3's height, it is lighter laborsaving than direct rotation regulation pole 310, saved time and resource, and change climbing mechanism 3's height through this kind of regulative mode, make its regulation behind the contact limbs milder, height and dynamics that more can accurate slow definite support reach ideal result of use.
Since the angle and position of the pressing force are important when the screw top rod 221 presses the bone stubble, the connecting hole 220 is provided as a universal locking hole, which is a conventional structure, in addition to the arc-shaped connecting plate 22, which allows the screw top rod 221 to be inserted from multiple directions. Thereby can carry out slight angle modulation when covering to the bone stubble, make it more satisfy the support demand, improve the rate of accuracy of operation to universal locking hole can automatic locking screw ejector pin 221, has removed the step of using nut locking from, makes to press and covers the operation convenient and fast more.
As a supporting point of the grasping apparatus, in order to ensure the stability of grasping by the grasping forceps 1, a clamp plate 14 for grasping a bone is symmetrically fixed to the lower ends of the left and right handles 11, 12, and the contact surface of the clamp plate 14 with the bone is a curved surface. This increases the contact area between the forceps 1 and the bone, increases the frictional force between the forceps 1 and the bone, and thus stabilizes the grasping of the forceps 1 and provides more support force for the threaded rod 221.
Meanwhile, in order to increase the pressing force and stability between the threaded mandril 221 and the bone stubbles, fixing protrusions 2210 are distributed on the bottom end surface of the threaded mandril 221, and the fixing protrusions 2210 adopt a tooth-shaped structure, so that the threaded mandril 221 can be firmly propped above the bone stubbles after being implanted without sliding and shifting, and the damage to the anatomical structure is avoided.
The above is only the preferred embodiment of the present invention, and any person can make some simple modifications, deformations and equivalent replacements according to the present invention, all fall into the protection scope of the present invention.
Claims (8)
1. Difficult renaturation intertrochanteric fracture resets and holds device, its characterized in that includes:
the holding forceps (1) is used for being clamped on a limb of a patient, the holding forceps (1) comprises a left forceps handle (11) and a right forceps handle (12) which are hinged to each other through a pin shaft, a limiting plate (13) is connected between the left forceps handle (11) and the right forceps handle (12), an arc-shaped hole (130) is formed in the limiting plate (13) along the opening and closing track of the holding forceps (1), the left forceps handle (11) is fixedly connected with a end of the limiting plate (13), a limiting bolt (121) capable of sliding in the arc-shaped hole (130) is fixed on the right forceps handle (12), and a nut matched with the limiting bolt (121) in a threaded mode is sleeved on the limiting bolt (121);
top pressing mechanism (2), including the fixed lever (21) fixed on the pin shaft coaxially, the end of the fixed lever (21) far away from the holding forceps (1) is fixed with the connecting frame (22), the connecting frame (22) is a reverse-buckled bowl-shaped structure, and a plurality of connecting holes (220) with connecting threads are opened on the circular arc surface, thread mandril (221) is arranged below the connecting frame (22), the thread mandril (221) can penetrate into any connecting hole (220), and the upper end thereof is locked by screwing in the nut;
jacking mechanism (3), including link mechanism (31), fix jack-up board (32) in link mechanism (31) top and fix in unable adjustment base (33) of link mechanism (31) below, wherein, link mechanism (31) include two vertical connecting rods (311) that just control the interval and set up, transversely run through on two connecting rods (311) and have regulation pole (310), regulation pole (310) and connecting rod (311) threaded connection and end extend outward, articulate in every connecting rod (311) the top has second connecting rod (312), and two second connecting rods (312) are the splayed structure, articulate in every below of connecting rod (311) has third connecting rod (313), and two third connecting rods (313) are the structure of falling the splayed.
2. The reduction holding device for difficult-to-reduce tuberosity fracture according to claim 1, characterized in that the number of the connecting rod mechanisms (31) is two, and a space capable of accommodating the limb of the patient is arranged between the two connecting rod mechanisms (31).
3. The reduction grasping device for difficult-to-renature intertrochanteric fracture according to claim 1, characterized in that the jacking plate (32) is an arc plate that conforms to the shape of the limb.
4. The reduction holding device for the difficult-to-renature intertrochanteric fracture according to claim 1, characterized in that a rotating block (3101) is fixed at the non-extending end of the adjusting rod (310), a rotating hole (3102) is formed on the rotating block and is perpendicular to the adjusting rod (310), and a rotating handle (3103) is arranged in the rotating hole (3102) in a penetrating way.
5. The reduction holding device for difficult-to-renature intertrochanteric fracture according to claim 1, characterized in that the connecting holes (220) are universal locking holes.
6. The reduction holding device for the difficult-to-reduce tuberosity fracture according to claim 1, characterized in that the lower ends of the left forceps handle (11) and the right forceps handle (12) are symmetrically fixed with a clamping plate (14) for clamping the bone.
7. The reduction holding device for difficult-to-reduce tuberosity fracture between the two hands of claim 6, characterized in that the face of the said plywood (14) which is jointed with the bone is a cambered surface.
8. The reduction holding device for the difficult-to-renature intertrochanteric fracture according to claim 1, characterized in that the bottom end surface of the threaded mandril (221) is distributed with fixing protrusions (2210).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920249963.3U CN209996449U (en) | 2019-02-27 | 2019-02-27 | Reduction holding device for difficult renaturation intertrochanteric fracture |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920249963.3U CN209996449U (en) | 2019-02-27 | 2019-02-27 | Reduction holding device for difficult renaturation intertrochanteric fracture |
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| CN209996449U true CN209996449U (en) | 2020-01-31 |
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| CN201920249963.3U Active CN209996449U (en) | 2019-02-27 | 2019-02-27 | Reduction holding device for difficult renaturation intertrochanteric fracture |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109938814A (en) * | 2019-02-27 | 2019-06-28 | 陈伟 | Irreducible intertrochanteric fracture resets grasping device |
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2019
- 2019-02-27 CN CN201920249963.3U patent/CN209996449U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109938814A (en) * | 2019-02-27 | 2019-06-28 | 陈伟 | Irreducible intertrochanteric fracture resets grasping device |
| CN109938814B (en) * | 2019-02-27 | 2023-12-22 | 陈伟 | Reduction holding device for refractory intertrochanter fracture |
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