CN215079524U - Adjustable fracture reduction instrument - Google Patents
Adjustable fracture reduction instrument Download PDFInfo
- Publication number
- CN215079524U CN215079524U CN202120157627.3U CN202120157627U CN215079524U CN 215079524 U CN215079524 U CN 215079524U CN 202120157627 U CN202120157627 U CN 202120157627U CN 215079524 U CN215079524 U CN 215079524U
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- CN
- China
- Prior art keywords
- universal
- rod
- threaded rod
- connecting rod
- adjusting
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000002184 metal Substances 0.000 claims abstract description 27
- 238000006073 displacement reaction Methods 0.000 claims abstract description 4
- 210000000988 bone and bone Anatomy 0.000 claims description 8
- 208000010392 Bone Fractures Diseases 0.000 description 17
- 238000005034 decoration Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 208000007356 Fracture Dislocation Diseases 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000000399 orthopedic effect Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model discloses an adjustable fracture reduction instrument, which comprises a first threaded rod and a second threaded rod which are arranged in parallel relatively, wherein both ends of the first threaded rod are respectively hinged with one end of an universal rod through a connecting rod, and the other end of the universal rod is connected with a metal spicule through a universal connecting piece; the first connecting rod at one end of the first threaded rod is fixedly connected, and the second connecting rod at the other end of the first threaded rod is in adjustable connection capable of axially displacing on the first threaded rod; one the rear end of metal spicule inserts in the radial inclined hole on the perpendicular third connecting rod of connecting of one end of second threaded rod, another the rear end of metal spicule is connected with the fourth connecting rod through another universal connection subassembly, the fourth connecting rod is installed perpendicularly at the second threaded rod other end, and can axial displacement adjusting position on the second threaded rod. The utility model can greatly shorten the resetting time of the fracture end in the operation.
Description
Technical Field
The utility model relates to the technical field of medical appliances for orthopedic surgery, in particular to an adjustable fracture reduction appliance.
Background
Most manufacturers' operation reduction apparatus on the market at present is one-way regulation mode, and this type of apparatus is similar to I-shaped frame shape, comprises quarter butt, metal spicule, adjusting nut and screw thread stock, and quarter butt one end is connected respectively to the stock both ends, and the quarter butt other end links metal spicule, and two metal spicules are squeezed into fracture broken ends both sides respectively. The doctor pressurizes or struts the fracture end through one end of the adjusting nut, and the other end of the short rod adjusts the fracture end to reset.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an adjustable fracture reduction apparatus aiming at the technical defects existing in the prior art.
For realizing the utility model discloses a technical scheme that the purpose adopted is:
an adjustable fracture reduction instrument comprises a first threaded rod and a second threaded rod which are arranged in parallel relatively, wherein two ends of the first threaded rod are respectively hinged and connected with one end of a universal rod through a connecting rod, and the other end of the universal rod is connected with a metal bone needle through a universal connecting piece; the first connecting rod at one end of the first threaded rod is fixedly connected, and the second connecting rod at the other end of the first threaded rod is in adjustable connection capable of axially displacing on the first threaded rod; one the rear end of the metal spicule is inserted into a radial inclined hole on a third connecting rod which is vertically connected with one end of the second threaded rod, the other rear end of the metal spicule is connected with a fourth connecting rod through a universal connecting piece, the fourth connecting rod is vertically arranged at the other end of the second threaded rod, and the position of the second threaded rod can be adjusted through axial displacement.
The second connecting rod is arranged on the first threaded rod in a matched mode through a sleeve part formed by the end heads, and two ends of the sleeve part are respectively provided with an adjusting locking nut in threaded connection with the first threaded rod.
The fourth connecting rod is arranged on the second threaded rod in a matched mode through a sleeve portion formed by the end heads, and adjusting locking nuts in threaded connection with the second threaded rod are arranged at two ends of the sleeve portion respectively.
The universal connecting piece comprises a universal outer sleeve connected with the universal rod, the universal outer sleeve is connected with a universal head, and a bone needle mounting hole is formed in the universal head to mount a metal bone needle.
The universal head is connected with a locking screw, and the locking screw is in threaded connection with the universal head to lock the metal spicule.
The universal rod is characterized in that a hinge hole is formed in one end of the universal rod and is in hinged connection with a hinge hole in the end, corresponding to the connecting rod, of the connecting rod through an adjusting shaft sleeve, an adjusting locking screw is coaxially mounted in the adjusting shaft sleeve, one end of the adjusting locking screw is in threaded connection with a locking nut on the outer side, and a spring gasket is arranged between the locking nut and the shaft hole end of the universal rod.
The utility model discloses a double-pole parallel pressurization struts, universal space angle modulation integrated configuration that resets, thereby realizes that the broken end space angular adjustment of fracture realizes resetting in the operation, can shorten bone broken end reset time in the operation by a wide margin, and it is good to improve doctor's operability, avoids resetting many times in the operation.
Drawings
FIG. 1 is a schematic structural view of an adjustable fracture reduction instrument according to the present invention;
FIG. 2 is a cross-sectional view taken along line B-B of FIG. 1;
FIG. 3 is a cross-sectional view taken along line C-C of FIG. 1;
fig. 4 is an exploded view of fig. 3.
Detailed Description
The present invention will be described in further detail with reference to the following drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1-4, the utility model relates to an adjustable fracture reduction instrument, which comprises a first threaded rod 12 and a second threaded rod 19 which are arranged in parallel, wherein both ends of the first threaded rod are respectively hinged with one end of a universal rod 5 through a connecting rod, and the other end of the universal rod is connected with a metal spicule 3 through a universal connecting piece; the first connecting rod 10 at one end of the first threaded rod is fixedly connected, and the second connecting rod 14 at the other end of the first threaded rod is in adjustable connection capable of axially displacing on the first threaded rod 12; the rear end of one of the metal spicules is inserted into a radial inclined hole (marked by a mark) on a third connecting rod 13 which is vertically connected with one end of a second threaded rod 12, the rear end of the other of the metal spicules 1 is connected with a fourth connecting rod 15 through another universal connecting piece, and the fourth connecting rod is vertically arranged at the other end of a second threaded rod 19 and can be axially displaced and adjusted in position on the second threaded rod.
The second connecting rod is arranged on the first threaded rod in a matched mode through a sleeve part formed by the end heads, and two ends of the sleeve part are respectively provided with an adjusting locking nut 11 in threaded connection with the first threaded rod. Thus, by adjusting the position of the adjusting and locking nut 11 on the first threaded rod, the second connecting rod moves on the first threaded rod, and accordingly the corresponding metal spicule is adjusted.
The fourth connecting rod 15 is installed on the second threaded rod 19 through a sleeve portion formed by end heads in a matching mode, two ends of the sleeve portion are respectively provided with an adjusting locking nut in threaded connection with the second threaded rod, and like the second connecting rod, the fourth connecting rod moves on the second threaded rod by adjusting the position of the adjusting locking nut 11 on the second threaded rod, so that the metal spicule is adjusted correspondingly.
Wherein, universal connecting piece include one with universal overcoat 5 that 5 universal rods are connected, universal overcoat is connected with universal head 3, universal overhead spicule mounting hole that is formed with to installation metal spicule 3. The universal connecting piece is selected for use, so that the metal spicule can be adjusted in a universal mode, and the adjustment requirement is guaranteed to be met. In the utility model discloses in, universal joint be 3, as shown in figure 1.
Each universal head 2 is connected with a locking screw 1, the number of the universal heads is three, the number of the locking screws is three, and the locking screws are connected with the universal heads through threads to lock metal spicules. The universal head 2 is connected with the universal outer sleeve 4, and the universal rod 5, the first connecting rod 4 and the fourth connecting rod 15 are respectively installed in the corresponding universal outer sleeve 4 through shaft hole sliding fit and are connected in a clamping mode.
Specifically, the universal head 2 is connected with the universal outer sleeve 4, the first connecting rod 4 and the universal outer sleeve 4 corresponding to the fourth connecting rod 15 through the clamping connection of the inner clamping spring structure after being installed.
Wherein, the one end of universal rod 5 is formed with the hinge hole, and the hinge hole that corresponds the end with the connecting rod that is connected is equipped with the articulated connection of regulating spindle 7 of adjusting locking screw 6 through inside coaxial core, promptly regulating spindle sleeve 7 establishes outside adjusting locking screw, the one end of adjusting locking screw 6 is provided with first lock nut 9, has set gradually spring washer 8 between the inboard of first lock nut 9 and the one end of universal rod 5.
That is, the first connecting rod 10 and the second connecting rod 14 are sequentially matched with the corresponding adjusting shaft sleeve 7 and the spring washer 8, and after the adjusting locking screw 6 is installed, the first locking nut 9 is connected with the adjusting locking screw 6 through a threaded structure.
Wherein, the first locking dabber 18 has been packed into in the cooperation of the hole axle of universal rod 5, the second locking dabber 17 has been packed into in the cooperation of the hole axle of fourth connecting rod 15, second lock nut 16 through screw thread portion 22 with screw thread 21 on the fourth connecting rod is the cooperation and is linked, and rotatory during second lock nut 16, the radial tapering structure axial displacement who stretches into in the fourth connecting rod of second lock nut 16 can cooperate with the tip inclined plane of second locking dabber 17, can make the second locking dabber move to the shaft hole in order to support the inner or the counter rotation of the universal head of packing into the universal sleeve and loosen, thereby realize making the fourth connecting rod be free state or locked state. Similarly, when the first locking nut 9 rotates, the first locking mandrel 17 moves axially in the shaft hole of the universal rod 5 by matching the tapered structure of the outer surface of the axially movable adjusting shaft sleeve 7 with the end of the inclined surface of the first locking mandrel 18, so as to abut against the inner end 20 of the universal head of the universal sleeve or release the universal head reversely, thereby realizing that the universal rod is in a free state or a locking state.
The first threaded rod 12 is installed into the first connecting rod 10 through a shaft hole in a matched mode, and the second threaded rod 19 is installed into the third connecting rod 13 through a shaft hole in a matched mode and fixedly connected through a welding mode.
The adjusting and locking nuts 11 are installed clockwise 3 by threads as shown in fig. 1, and the remaining 2 adjusting and locking nuts are installed after the second connecting rod 14 and the fourth connecting rod 15 are installed in the respective threaded rods 12.
The adjustable fracture reduction instrument of the utility model has the following use steps:
1. firstly, the metal spicules 3 are respectively driven into the proper adjusting positions at the two sides of the fracture broken end,
2. the first lock nut 9 and the second lock nut 16 are rotated counterclockwise and loosened, so that the universal rod 5 and the fourth connecting rod 15 are in a free state.
3. The universal head 2 and the third connecting rod 13 are respectively moved to the proper positions of the metal spicules 3 by adjusting the locking nuts 11 leftwards or rightwards through the figure, and the locking screws 1 are rotated and locked after the spicules are installed in the shaft holes in a matched mode.
4. The universal head 2 is connected with a metal spicule 3 through a locking screw 1. And the first locking nut 9 and the second locking nut 16 are rotated clockwise to lock all joint parts.
5. The locking nut 11 is sequentially rotated and adjusted according to the requirement of the fracture end to pressurize or expand the fracture end to the theoretical position of the fracture end.
6. The first locking nut 9 is loosened by rotation, the first locking nut 9 is locked by rotation after the dislocation fracture broken ends are reset and overlapped by holding the two universal rods 5 by two hands respectively, and the fracture broken ends are reset.
The utility model discloses a double-pole parallel pressurization struts, universal space angle modulation integrated configuration that resets, thereby realizes that the broken end space angular adjustment of fracture realizes resetting in the operation, can shorten bone broken end reset time in the operation by a wide margin, and it is good to improve doctor's operability, avoids resetting many times in the operation.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (6)
1. An adjustable fracture reduction instrument is characterized by comprising a first threaded rod and a second threaded rod which are arranged in parallel relatively, wherein two ends of the first threaded rod are respectively hinged with one end of a universal rod through a connecting rod, and the other end of the universal rod is connected with a metal bone needle through a universal connecting piece; the first connecting rod at one end of the first threaded rod is fixedly connected, and the second connecting rod at the other end of the first threaded rod is in adjustable connection capable of axially displacing on the first threaded rod; one the rear end of the metal spicule is inserted into a radial inclined hole on a third connecting rod which is vertically connected with one end of the second threaded rod, the other rear end of the metal spicule is connected with a fourth connecting rod through a universal connecting piece, the fourth connecting rod is vertically arranged at the other end of the second threaded rod, and the position of the second threaded rod can be adjusted through axial displacement.
2. The adjustable fracture reduction instrument of claim 1, wherein the second connecting rod is fittingly mounted to the first threaded rod through a sleeve portion formed at an end thereof, and an adjusting lock nut is provided at each end of the sleeve portion to be threadedly coupled to the first threaded rod.
3. The adjustable fracture reduction instrument of claim 1, wherein the fourth connecting rod is fittingly mounted to the second threaded rod through a sleeve portion formed at an end thereof, and adjusting and locking nuts threadedly coupled to the second threaded rod are respectively provided at both ends of the sleeve portion.
4. The adjustable fracture reduction apparatus of claim 1, wherein the universal joint comprises a universal sleeve connected to the universal rod, the universal sleeve is connected to a universal head, and the universal head is formed with a bone pin mounting hole for mounting a metal bone pin.
5. The adjustable fracture reduction instrument of claim 4, wherein a locking screw is connected to the universal head, and the locking screw is threadedly connected to the universal head to lock the metal spicule.
6. The adjustable fracture reduction apparatus according to claim 1, wherein a hinge hole is formed at one end of the universal rod, the hinge hole at the end corresponding to the connected connecting rod is hinged and connected through an adjusting shaft sleeve, an adjusting locking screw is coaxially installed in the adjusting shaft sleeve, one end of the adjusting locking screw is in threaded connection with an outer locking nut, and a spring washer is arranged between the locking nut and the shaft hole end of the universal rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120157627.3U CN215079524U (en) | 2021-01-20 | 2021-01-20 | Adjustable fracture reduction instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120157627.3U CN215079524U (en) | 2021-01-20 | 2021-01-20 | Adjustable fracture reduction instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215079524U true CN215079524U (en) | 2021-12-10 |
Family
ID=79324911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120157627.3U Expired - Fee Related CN215079524U (en) | 2021-01-20 | 2021-01-20 | Adjustable fracture reduction instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215079524U (en) |
-
2021
- 2021-01-20 CN CN202120157627.3U patent/CN215079524U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211210 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |