CN209450585U - Posterior lumbar spinal surgery dilator - Google Patents
Posterior lumbar spinal surgery dilator Download PDFInfo
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- CN209450585U CN209450585U CN201822189075.5U CN201822189075U CN209450585U CN 209450585 U CN209450585 U CN 209450585U CN 201822189075 U CN201822189075 U CN 201822189075U CN 209450585 U CN209450585 U CN 209450585U
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- adjusting rod
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- straight handle
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Abstract
The utility model relates to the field of medical instrument technology, more particularly to a kind of posterior lumbar spinal surgery dilator, bar is strutted including first, first, which struts bar, includes the first straight handle section and the first open arms, and one end of the first straight handle section is connected by the first connecting cylinder with one end of the first open arms；Second struts bar, and second, which struts bar, includes the second straight handle section and the second open arms, and one end of the second straight handle section is connected by the second connecting cylinder with one end of the second open arms；First struts bar is set side by side with the second support, and the first open arms and the second open arms are opened to two sides and be arranged；Top regulating mechanism, is set to first and struts bar and second and strut between bar top；Lower part regulating mechanism is set between the first connecting cylinder and the second connecting cylinder, and is rotation connection with the first connecting cylinder and the second connecting cylinder.The first regulating mechanism of the utility model and the second regulating mechanism use similar structure type, simplify operation difficulty, are easy to use.
Description
Technical field
The utility model relates to the field of medical instrument technology, and in particular to a kind of posterior lumbar spinal surgery dilator.
Background technique
In surgical operation, surgical instrument is varied, has critical influence to operation.In bone surgery, ridge
Lumbar intervertebral in column operation struts extremely key, and lumbar intervertebral dilator is that a kind of more hand is used in current bone surgery
Art tool.
Existing dilator adjusts two distances for strutting bar upper and lower ends, and regulating mechanism is different, and attachment is more, operation
It is cumbersome.
Utility model content
In view of the deficiencies of the prior art, the utility model provides a kind of posterior lumbar spinal surgery dilator, comprising:
First struts bar, and described first to strut bar include the first straight handle section and the first open arms, and the one of first straight handle section
End is connected by the first connecting cylinder with one end of first open arms, between first straight handle section and first open arms
Equipped with angle, the first connecting cylinder axial location is provided with first through hole；
Second struts bar, and described second to strut bar include the second straight handle section and the second open arms, and the one of second straight handle section
End is connected by the second connecting cylinder with one end of second open arms, between second straight handle section and second open arms
Equipped with angle, the second connecting cylinder axial location is provided with the second through-hole, and described first struts bar and second support
It is set side by side, first open arms and second open arms are opened to two sides and be arranged；
Top regulating mechanism, is set to described first and struts bar and described second and strut between bar top, for adjusting two
Spacing between person；
Lower part regulating mechanism is set between first connecting cylinder and second connecting cylinder, for adjusting two
Spacing between person, and be rotation connection with first connecting cylinder and second connecting cylinder.
Preferably, top regulating mechanism, including the first adjusting rod, the first adjusting nut, the first gasket and first are adjusted
Knob, one end of first adjusting rod and the side of the other end towards second straight handle section of first straight handle section are mutually cut with scissors
It connects, the outer surface of first adjusting rod is provided with screw thread, and the other end of second straight handle section is towards first straight handle section
Side be provided with third through-hole, first adjusting rod passes through the third through-hole, first adjusting nut and described the
One gasket is arranged on first adjusting rod, and between first straight handle section and second straight handle section, and described
The side of one gasket is in contact with second straight handle section, and the other side is in contact with first adjusting nut, and described first
Adjusting knob is set on first adjusting rod, and is located at the other side of second straight handle section；
Preferably, the lower part regulating mechanism, including the second adjusting rod, outer surface are provided with screw thread, one end is set
It is equipped with the fourth hole matched with the first through hole, described first, which struts bar, passes through the first through hole by the first screw
And fourth hole, and being screwed for the first screw tail end setting is threaded by the first fastening nut, described second is adjusted
Bar and described first struts that bar is free to rotate, and the lower part regulating mechanism further includes the second screw, the second adjusting nut, second
Gasket and the second adjusting knob, second screw include coaxial arrangement adjusting section and stud section, the adjusting section perpendicular to
Axis is provided with fifth hole, and the stud section is provided with screw thread far from described one end for adjusting section, and second adjusting rod is worn
The fifth hole is crossed, second adjusting nut and second gasket are arranged on second adjusting rod, and are located at institute
It states first and struts bar and described second and strut between bar, the side of second gasket is in contact with second screw, another
Side is in contact with second adjusting nut, and second adjusting knob is set on second adjusting rod, and is located at institute
The other side of the second screw is stated, the stud section passes through second through-hole, and fixes by the second fastening nut, described second
Adjusting rod and described second to strut bar free to rotate.
Preferably, described first struts bar with described second to strut the total length of bar equal.
Preferably, first straight handle section, the first connecting cylinder and first open arms are an integral structure, described
Sharp processing is cut in one end of one open arms and separate first connecting cylinder；Second straight handle section, the second connecting cylinder and institute
It states the second open arms to be an integral structure, sharp processing is cut in second open arms and one end far from second connecting cylinder.
Preferably, first straight handle section side upper end opposite with second straight handle section is provided with arc and refers to
Slot.
Preferably, being provided with graduation mark on first adjusting rod and second adjusting rod.
Preferably, the top regulating mechanism, including third adjusting rod and the 4th adjusting rod, the third are adjusted
One end of bar and the side of first straight handle section top towards second straight handle section are hinged, and the one of the 4th adjusting rod
It holds and is hinged with the side of second straight handle section top towards first straight handle section, the third adjusting rod and the described 4th
Adjusting rod shifts to install, and the third adjusting rod side opposite with the 4th adjusting rod is provided with straight-tooth, the top
Regulating mechanism further includes the first regulating device, including first shell, is internally provided with cavity, the first shell both ends setting
The left and right sides is respectively arranged with the first opening, and being horizontally disposed in the middle part of the first shell has the first adjustment gear, and described first adjusts
The axial location of section gear is connected with the first bull stick across the first shell upper surface vertically, and end is provided with third adjusting
Knob, the third adjusting rod and the 4th adjusting rod misplace to be inserted into from first opening of the first shell two sides,
It is engaged with first adjustment gear.
Preferably, the lower part regulating mechanism, including the 5th adjusting rod and the 6th adjusting rod, the described 5th is adjusted
One end of bar is provided with the 6th through-hole matched with the first through hole, and described first, which struts bar, passes through institute by third screw
First through hole and the 6th through-hole are stated, and being screwed for the third screw tail end setting, institute are threaded by third fastening nut
The one end for stating the 6th adjusting rod is provided with the 7th through-hole matched with second through-hole, and described second struts bar by the 4th
Screw passes through second through-hole and the 7th through-hole, and the spiral shell of the 4th screw tail end setting is threaded by the 4th fastening nut
Line is fixed, and first connecting cylinder is shifted to install with second connecting cylinder, and the 5th adjusting rod and the described 6th is adjusted
The opposite side of pole is provided with straight-tooth, and the lower part regulating mechanism further includes the second regulating device, including second shell,
It is internally provided with cavity, the second shell both ends setting left and right sides is respectively arranged with the second opening, in the second shell
Portion is horizontally disposed the second adjustment gear, and the axial location of second adjustment gear is connected with bull stick across described second vertically
Housing upper surface, end are provided with the 4th adjusting knob, and the third adjusting rod misplaces with the 4th adjusting rod from described
Second opening insertion of second shell two sides, is engaged with second adjustment gear.
The utility model first struts bar and second and struts between bar upper and lower ends respectively through the first regulating mechanism and the
Two regulating mechanisms are connected, can the distance of flexible modulation between the two, and the first regulating mechanism and the second regulating mechanism use phase
As structure type, simplify operation difficulty, be easy to use.
Other features and advantages of the utility model will illustrate in the following description, also, partly from specification
In become apparent, or understood and implementing the utility model.The purpose of this utility model and other advantages can pass through
Structure specifically indicated in the written description, claims, and drawings is achieved and obtained.
Below by drawings and examples, the technical solution of the utility model is described in further detail.
Detailed description of the invention
Attached drawing is used to provide a further understanding of the present invention, and constitutes part of specification, practical with this
Novel embodiment is used to explain the utility model together, does not constitute limitations of the present invention.In the accompanying drawings:
Fig. 1 is posterior lumbar spinal surgery dilator structural schematic diagram in the utility model one embodiment；
Fig. 2 is the utility model one embodiment middle and lower part regulating mechanism structural schematic diagram；
Fig. 3 is posterior lumbar spinal surgery dilator structural schematic diagram in the utility model one embodiment；
Fig. 4 is the utility model one embodiment middle and lower part regulating mechanism structural schematic diagram.
Specific embodiment
It is illustrated below in conjunction with preferred embodiment of the attached drawing to the utility model, it should be understood that described herein excellent
It selects embodiment to be only used for describing and explaining the present invention, is not used to limit the utility model.
As depicted in figs. 1 and 2, the utility model embodiment provides a kind of posterior lumbar spinal surgery dilator, comprising:
First struts bar 1, and described first, which struts bar 1, includes the first straight handle section 1-1 and the first open arms 1-2, and described first is straight
One end of handle section 1-1 is connected by the first connecting cylinder 1-3 with one end of the first open arms 1-2, first straight handle section
Angle is equipped between 1-1 and the first open arms 1-2, the first connecting cylinder 1-3 axial location is provided with first through hole 1-
4；
Second struts bar 2, and described second, which struts bar 2, includes the second straight handle section 2-1 and the second open arms 2-2, and described second is straight
One end of handle section 2-1 is connected by the second connecting cylinder 2-3 with one end of the second open arms 2-2, second straight handle section
Angle is equipped between 2-1 and the second open arms 2-2, the second connecting cylinder 2-3 axial location is provided with the second through-hole 2-
4, described first, which struts bar 1, struts bar 2 with described second and is set side by side, the first open arms 1-2 and the second open arms 2-2 to
Open setting in two sides；
Top regulating mechanism 3, is set to described first and struts bar 1 and described second and strut between 2 top of bar, for adjusting
Spacing between the two, including the first adjusting rod 3-1, the first adjusting nut 3-2, the first gasket 3-3 and the first adjusting knob 3-
4, the other end of one end of the first adjusting rod 3-1 and the first straight handle section 1-1 is towards the one of the second straight handle section 2-1
Side is hinged, and the outer surface of the first adjusting rod 3-1 is provided with screw thread, and the other end of the second straight handle section 2-1 is towards institute
The side for stating the first straight handle section 1-1 is provided with third through-hole 2-5, and the first adjusting rod 3-1 passes through the third through-hole 2-5,
The first adjusting nut 3-2 and the first gasket 3-3 are arranged on the first adjusting rod 3-1, and are located at described first
Between straight handle section 1-1 and the second straight handle section 2-1, the side of the first gasket 3-3 and the second straight handle section 2-1 phase
Contact, the other side are in contact with the first adjusting nut 3-2, and the first adjusting knob 3-4 is set to described first and adjusts
On pole 3-1, and it is located at the other side of the second straight handle section 2-1；
Lower part regulating mechanism 4 is set between the first connecting cylinder 1-3 and the second connecting cylinder 2-3, is used for
Adjust spacing between the two, including the second adjusting rod 4-1, outer surface is provided with screw thread, and one end is provided with and described the
The fourth hole 4-2 that one through-hole 1-4 is matched, described first, which struts bar 1, passes through the first through hole 1- by the first screw 4-3
4 and fourth hole 4-2, and being screwed for the first screw 4-3 tail end setting, institute are threaded by the first fastening nut 4-4
It states the second adjusting rod 4-1 and described first and struts that bar 1 is free to rotate, and the lower part regulating mechanism 4 further includes the second screw 4-
5, the second adjusting nut 4-6, the second gasket 4-7 and the second adjusting knob 4-8, the second screw 4-5 include coaxial arrangement
It adjusts and axis is provided with fifth hole 4-9, the stud on section 4-51 and stud section 4-52, the adjusting section 4-51
Section 4-52 is provided with screw thread far from described one end for adjusting section 4-51, and the second adjusting rod 4-1 passes through the fifth hole 4-
9, the second adjusting nut 4-6 and the second gasket 4-7 are arranged on the second adjusting rod 4-1, and are located at described the
One, which struts bar 1 and described second, struts between bar 2, and the side of the second gasket 4-7 is in contact with the second screw 4-5,
Its other side is in contact with the second adjusting nut 4-6, and the second adjusting knob 4-8 is set to the second adjusting rod 4-
On 1, and it is located at the other side of the second screw 4-5, the stud section 4-52 passes through the second through-hole 2-4, and passes through the
Two fastening nut 4-10 are fixed, and it is free to rotate that the second adjusting rod 4-1 and described second struts bar 2.
Described first struts bar 1, and with described second to strut the total length of bar 2 equal.
The first straight handle section 1-1, the first connecting cylinder 1-3 and the first open arms 1-2 are an integral structure, and described
Sharp processing is cut in one end of one open arms 1-2 and the separate first connecting cylinder 1-3；The second straight handle section 2-1, the second connection
Cylinder 2-3 and the second open arms 2-2 are an integral structure, the second open arms 2-2 and the separate second connecting cylinder 2-
Cut sharp processing in 3 one end.
The side upper end first straight handle section 1-1 opposite with the second straight handle section 2-1 is provided with arc and refers to slot.
Graduation mark is provided on the first adjusting rod 3-1 and the second adjusting rod 4-1.
The working principle and beneficial effect of above-mentioned technical proposal are as follows:
When in use, first is adjusted by the positional relationship by adjusting the second adjusting nut and the second adjusting knob first
Strut that bar struts at a distance from bar lower end with second and locking is then inserted into adapt to the width between lumbar vertebrae, then by adjusting first
The positional relationship of adjusting nut and the first adjusting knob, which adjusts first and struts bar and second, to be strutted at a distance from bar upper end and locking, with
The folding between the first open arms lower end and the second open arms lower end is driven, the effect between strutting lumbar vertebrae is had reached.The present embodiment first
The cooperation of through-hole and the first screw, the cooperation of the second through-hole and the second screw so that, lower part regulating mechanism can strut bar with first
And second strut and be freely rotated between bar, convenient for strutting operation, while top regulating mechanism and lower part regulating mechanism are using similar
Regulating mechanism, simplify overall structure, convenient for operation.
As shown in Figure 3 to Figure 4, in one embodiment, a kind of posterior lumbar spinal surgery dilator, comprising:
First struts bar 1, and described first, which struts bar 1, includes the first straight handle section 1-1 and the first open arms 1-2, and described first is straight
One end of handle section 1-1 is connected by the first connecting cylinder 1-3 with one end of the first open arms 1-2, first straight handle section
Angle is equipped between 1-1 and the first open arms 1-2, the first connecting cylinder 1-3 axial location is provided with first through hole 1-
4；
Second struts bar 2, and described second, which struts bar 2, includes the second straight handle section 2-1 and the second open arms 2-2, and described second is straight
One end of handle section 2-1 is connected by the second connecting cylinder 2-3 with one end of the second open arms 2-2, second straight handle section
Angle is equipped between 2-1 and the second open arms 2-2, the second connecting cylinder 2-3 axial location is provided with the second through-hole 2-
4, described first, which struts bar 1, struts bar 2 with described second and is set side by side, the first open arms 1-2 and the second open arms 2-2 to
Open setting in two sides；
Top regulating mechanism 3, is set to described first and struts bar 1 and described second and strut between 2 top of bar, for adjusting
Spacing between the two, including third adjusting rod 3-11 and the 4th adjusting rod 3-12, the one of the third adjusting rod 3-11
It holds and is hinged with the side of the top the first straight handle section 1-1 towards the second straight handle section 2-1, the 4th adjusting rod 3-12
One end and the side of the top the second straight handle section 2-1 towards the first straight handle section 1-1 be hinged, the third adjusting rod
3-11 is shifted to install with the 4th adjusting rod 3-12, and the third adjusting rod 3-11 is opposite with the 4th adjusting rod 3-12
Side is provided with straight-tooth, and the top regulating mechanism 3 further includes the first regulating device 3-13, including first shell 3-131,
It is internally provided with cavity, the both ends the first shell 3-131 setting left and right sides is respectively arranged with the first opening, the first shell
Horizontally disposed in the middle part of body 3-131 to have the first adjustment gear 3-133, the axial location of the first adjustment gear 3-133 connects vertically
It is connected to the first bull stick, first bull stick passes through the upper surface the first shell 3-131, and end is provided with third adjusting knob
The institute that 3-132, the third adjusting rod 3-11 and the 4th adjusting rod 3-12 misplace from the two sides the first shell 3-131
The insertion of the first opening is stated, is engaged with the first adjustment gear 3-133.
Lower part regulating mechanism 4 is set between the first connecting cylinder 1-3 and the second connecting cylinder 2-3, is used for
Spacing between the two, the lower part regulating mechanism 4, including the 5th adjusting rod 4-11 and the 6th adjusting rod 4-12 are adjusted,
One end of the 5th adjusting rod 4-11 is provided with the 6th through-hole 4-111 matched with the first through hole 1-4, and described
One, which struts bar 1, passes through the first through hole 1-4 and the 6th through-hole 4-111 by third screw 4-13, and fastens spiral shell by third
Female 4-14 is threaded onto being screwed for third screw 4-13 tail end setting, one end of the 6th adjusting rod 4-12 be provided with
The 7th through-hole 4-121 that second through-hole matches, described second, which struts bar 2, passes through described second by the 4th screw 4-15
Through-hole 2-4 and the 7th through-hole 4-121, and the 4th screw 4-15 tail end setting is threaded by the 4th fastening nut 4-16
It is screwed, the first connecting cylinder 1-3 is shifted to install with the second connecting cylinder 2-3, the 5th adjusting rod 4-11
The side opposite with the 6th adjusting rod 4-12 is provided with straight-tooth, and the lower part regulating mechanism 4 further includes the second adjusting dress
4-17, including second shell 4-171 are set, cavity, the both ends the second shell 4-171 setting left and right sides point are internally provided with
It is not provided with the second opening, being horizontally disposed in the middle part of the second shell 4-171 has the second adjustment gear 4-173, and described second adjusts
The axial location of section gear 4-173 is connected with the second bull stick across the upper surface the second shell 4-171, end setting vertically
There are the 4th adjusting knob 4-172, the 5th adjusting rod 4-11 and the 6th adjusting rod 4-12 dislocation from the second shell
The second opening insertion of the two sides 4-171, is engaged with the second adjustment gear 4-173.
Described first struts bar 1, and with described second to strut the total length of bar 2 equal.
The first straight handle section 1-1, the first connecting cylinder 1-3 and the first open arms 1-2 are an integral structure, and described
Sharp processing is cut in one end of one open arms 1-2 and the separate first connecting cylinder 1-3；The second straight handle section 2-1, the second connection
Cylinder 2-3 and the second open arms 2-2 are an integral structure, the second open arms 2-2 and the separate second connecting cylinder 2-
Cut sharp processing in 3 one end.
The side upper end first straight handle section 1-1 opposite with the second straight handle section 2-1 is provided with arc and refers to slot.
The working principle and beneficial effect of above-mentioned technical proposal are as follows:
The present embodiment, in actual use, first by adjusting the 4th adjusting knob, driving the second adjusting tooth rotation
It is dynamic to drive the 5th adjusting rod and the 6th adjusting rod is opposite or back movement, adjust first and strut bar and second and strut bar lower end
Distance be then inserted into adapting to the width between lumbar vertebrae, then by third adjusting knob, the rotation of the first adjustment gear of driving with
Drive third adjusting rod and the 4th adjusting rod in opposite directions or back movement, to drive opening between the first open arms and the second open arms
It closes.The cooperation of the present embodiment first through hole and third screw, the cooperation of the second through-hole and the 4th screw so that, lower part regulating mechanism
Bar and second can be strutted with first to strut and be freely rotated between bar, convenient for strutting operation, while top regulating mechanism and lower part tune
It saves mechanism and regulating mechanism is used as using cooperation between wheel and rack, overall structure is simplified, convenient for operation.
Obviously, it is practical without departing from this can to carry out various modification and variations to the utility model by those skilled in the art
Novel spirit and scope.If in this way, these modifications and variations of the present invention belong to the utility model claims and
Within the scope of its equivalent technologies, then the utility model is also intended to include these modifications and variations.
Claims (9)
1. posterior lumbar spinal surgery dilator characterized by comprising
First struts bar (1), and described first to strut bar (1) include the first straight handle section (1-1) and the first open arms (1-2), and described the
One end of one straight handle section (1-1) is connected by the first connecting cylinder (1-3) with one end of first open arms (1-2), described
Angle, the first connecting cylinder (1-3) axial location are equipped between first straight handle section (1-1) and first open arms (1-2)
It is provided with first through hole (1-4)；
Second struts bar (2), and described second to strut bar (2) include the second straight handle section (2-1) and the second open arms (2-2), and described the
One end of two straight handle sections (2-1) is connected by the second connecting cylinder (2-3) with one end of second open arms (2-2), described
Angle, the second connecting cylinder (2-3) axial location are equipped between second straight handle section (2-1) and second open arms (2-2)
It is provided with the second through-hole (2-4), described first, which struts bar (1), struts bar (2) with described second and be set side by side, first open arms
(1-2) and second open arms (2-2) are opened to two sides to be arranged；
Top regulating mechanism (3), is set to described first and struts bar (1) and described second and strut between bar (2) top, for adjusting
The spacing of section between the two；
Lower part regulating mechanism (4) is set between first connecting cylinder (1-3) and second connecting cylinder (2-3), is used
It is rotation in the spacing of adjusting between the two, and with first connecting cylinder (1-3) and second connecting cylinder (2-3)
Connection.
2. posterior lumbar spinal surgery dilator according to claim 1, which is characterized in that top regulating mechanism (3), including
First adjusting rod (3-1), the first adjusting nut (3-2), the first gasket (3-3) and the first adjusting knob (3-4), described first adjusts
One end of pole (3-1) and the side of the other end towards second straight handle section (2-1) of first straight handle section (1-1) are mutually cut with scissors
It connects, the outer surface of first adjusting rod (3-1) is provided with screw thread, and the other end of second straight handle section (2-1) is described in
The side of first straight handle section (1-1) is provided with third through-hole (2-5), and first adjusting rod (3-1) passes through the third through-hole
(2-5), first adjusting nut (3-2) and first gasket (3-3) are arranged on first adjusting rod (3-1), and
Between first straight handle section (1-1) and second straight handle section (2-1), the side of first gasket (3-3) and institute
It states the second straight handle section (2-1) to be in contact, the other side is in contact with first adjusting nut (3-2), and described first adjusts rotation
Button (3-4) is set on first adjusting rod (3-1), and is located at the other side of second straight handle section (2-1).
3. posterior lumbar spinal surgery dilator according to claim 2, which is characterized in that the lower part regulating mechanism (4),
Including the second adjusting rod (4-1), outer surface is provided with screw thread, and one end is provided with to be matched with the first through hole (1-4)
Fourth hole (4-2), described first strut bar (1) by the first screw (4-3) pass through the first through hole (1-4) and the 4th
Through-hole (4-2), and being screwed for the first screw (4-3) tail end setting is threaded by the first fastening nut (4-4), it is described
Second adjusting rod (4-1) and described first struts that bar (1) is free to rotate, and the lower part regulating mechanism (4) further includes the second spiral shell
Follow closely (4-5), the second adjusting nut (4-6), the second gasket (4-7) and the second adjusting knob (4-8), second screw (4-5)
Adjusting section (4-51) and stud section (4-52) including coaxial arrangement are provided with perpendicular to axis on the adjusting section (4-51)
Five through-holes (4-9), the stud section (4-52) are provided with screw thread far from described one end for adjusting section (4-51), and described second is adjusted
Bar (4-1) passes through the fifth hole (4-9), and second adjusting nut (4-6) and second gasket (4-7) are arranged in institute
It states on the second adjusting rod (4-1), and struts bar (1) and described second positioned at described first and strut between bar (2), second pad
The side of piece (4-7) is in contact with second screw (4-5), and the other side is in contact with second adjusting nut (4-6),
Second adjusting knob (4-8) is set on second adjusting rod (4-1), and is located at the another of second screw (4-5)
Side, the stud section (4-52) pass through second through-hole (2-4), and fixed by the second fastening nut (4-10), described
Second adjusting rod (4-1) and described second to strut bar (2) free to rotate.
4. posterior lumbar spinal surgery dilator according to claim 1, which is characterized in that described first strut bar (1) with
Described second strut bar (2) total length it is equal.
5. posterior lumbar spinal surgery dilator according to claim 1, which is characterized in that first straight handle section (1-1),
First connecting cylinder (1-3) and first open arms (1-2) are an integral structure, first open arms (1-2) and far from described
Cut sharp processing in one end of first connecting cylinder (1-3)；Second straight handle section (2-1), the second connecting cylinder (2-3) and described
Second open arms (2-2) is an integral structure, second open arms (2-2) and one end far from second connecting cylinder (2-3)
Cut sharp processing.
6. posterior lumbar spinal surgery dilator according to claim 1, which is characterized in that first straight handle section (1-1)
The side upper end opposite with the second straight handle section (2-1) is provided with arc and refers to slot.
7. posterior lumbar spinal surgery dilator according to claim 3, which is characterized in that first adjusting rod (3-1)
Graduation mark is provided with on second adjusting rod (4-1).
8. posterior lumbar spinal surgery dilator according to claim 1, which is characterized in that the top regulating mechanism (3),
Including third adjusting rod (3-11) and the 4th adjusting rod (3-12), one end of the third adjusting rod (3-11) is straight with described first
The side of the handle section top (1-1) towards second straight handle section (2-1) is hinged, one end of the 4th adjusting rod (3-12) with
The side of the second straight handle section top (2-1) towards first straight handle section (1-1) is hinged, the third adjusting rod (3-
11) it is shifted to install with the 4th adjusting rod (3-12), the third adjusting rod (3-11) and the 4th adjusting rod (3-12)
Opposite side is provided with straight-tooth, and the top regulating mechanism (3) further includes the first regulating device (3-13), including first shell
Body (3-131), is internally provided with cavity, and the first shell both ends (3-131) setting left and right sides is respectively arranged with first
Opening, first shell (3-131) middle part is horizontally disposed to be had the first adjustment gear (3-133), the first adjustment gear (3-
133) axial location is connected with the first bull stick vertically, and first bull stick passes through the upper surface the first shell (3-131),
End is provided with third adjusting knob (3-132), and the third adjusting rod (3-11) and the 4th adjusting rod (3-12) misplace
The first opening insertion from the two sides the first shell (3-131), is engaged with first adjustment gear (3-133).
9. posterior lumbar spinal surgery dilator according to claim 8, which is characterized in that the lower part regulating mechanism (4),
Including the 5th adjusting rod (4-11) and the 6th adjusting rod (4-12), one end of the 5th adjusting rod (4-11) be provided with it is described
The 6th through-hole (4-111) that first through hole (1-4) matches, described first struts bar (1) is passed through by third screw (4-13)
The first through hole (1-4) and the 6th through-hole (4-111), and the third screw is threaded by third fastening nut (4-14)
The setting of (4-13) tail end is screwed, and one end of the 6th adjusting rod (4-12) is provided with to be matched with second through-hole
The 7th through-hole (4-121), described second strut bar (2) by the 4th screw (4-15) pass through second through-hole (2-4) and
7th through-hole (4-121), and the screw thread that the 4th screw (4-15) tail end is arranged is threaded by the 4th fastening nut (4-16)
Fixed, first connecting cylinder (1-3) shifts to install with second connecting cylinder (2-3), the 5th adjusting rod (4-
11) it is provided with straight-tooth with the opposite side of the 6th adjusting rod (4-12), the lower part regulating mechanism (4) further includes second
Regulating device (4-17), including second shell (4-171), are internally provided with cavity, and second shell (4-171) both ends are set
It sets the left and right sides and is respectively arranged with the second opening, being horizontally disposed in the middle part of the second shell (4-171) has the second adjustment gear (4-
173), the axial location of second adjustment gear (4-173) is connected with the second bull stick across the second shell (4- vertically
171) upper surface, end are provided with the 4th adjusting knob (4-172), and the 5th adjusting rod (4-11) and the described 6th are adjusted
The second opening insertion that bar (4-12) misplaces from the two sides the second shell (4-171), with the second adjustment gear (4-
173) it engages.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822189075.5U CN209450585U (en) | 2018-12-25 | 2018-12-25 | Posterior lumbar spinal surgery dilator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822189075.5U CN209450585U (en) | 2018-12-25 | 2018-12-25 | Posterior lumbar spinal surgery dilator |
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| Publication Number | Publication Date |
|---|---|
| CN209450585U true CN209450585U (en) | 2019-10-01 |
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ID=68042082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822189075.5U Expired - Fee Related CN209450585U (en) | 2018-12-25 | 2018-12-25 | Posterior lumbar spinal surgery dilator |
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| Country | Link |
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| CN (1) | CN209450585U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110859648A (en) * | 2019-12-24 | 2020-03-06 | 上海市杨浦区中心医院(同济大学附属杨浦医院) | Multifunctional knee joint single condyle replacement operation incision spreader |
-
2018
- 2018-12-25 CN CN201822189075.5U patent/CN209450585U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110859648A (en) * | 2019-12-24 | 2020-03-06 | 上海市杨浦区中心医院(同济大学附属杨浦医院) | Multifunctional knee joint single condyle replacement operation incision spreader |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191001 Termination date: 20201225 |