CN103190945A - Axis resetting hammer special for collapse fracture - Google Patents
Axis resetting hammer special for collapse fracture Download PDFInfo
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- CN103190945A CN103190945A CN2013101128436A CN201310112843A CN103190945A CN 103190945 A CN103190945 A CN 103190945A CN 2013101128436 A CN2013101128436 A CN 2013101128436A CN 201310112843 A CN201310112843 A CN 201310112843A CN 103190945 A CN103190945 A CN 103190945A
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Abstract
The invention relates to the technical field of medical instruments, particularly to an axis resetting hammer special for collapse fracture. The axis resetting hammer is composed of an upper half hammer, a groove, an inner retaining piece, a spring, an outer retaining piece, an inserting pin, an inserting pull ring, a pin hole, a spring groove, an arc pin, an arc pin groove, a lower half hammer and a handle. The lower left portion of the upper half hammer and the upper left portion of the lower half hammer are mutually hinged, an arc-shaped arc pin integrated with the upper half hammer is arranged on the bottom surface of the upper half hammer, an arc-shaped arc pin groove is arranged on the top surface of the lower half hammer, and circular centers of the arc pin and the arc pin groove are positioned on the axis of a spindle at the position where the upper half hammer and the lower half hammer are hinged. According to the axis resetting hammer, the upper half hammer and the lower half hammer are connected in the hinge mode, and locking of positions of the upper half hammer and the lower half hammer is achieved through the inserting pin under the control of the spring, so that accurate positioning during combination of the upper half hammer and the lower half hammer is facilitated, and the fixing operation of the upper half hammer and the lower half hammer is convenient simultaneously.
Description
Technical field
The present invention relates to a kind of medical apparatus and instruments, particularly relate to a kind of special-purpose axle center of fracture hammer that resets that caves in.
Background technology
At present to the resetting of collapsed fracture piece, usually adopt open surgery, fully appear fracture, group make it to reset by sleds such as Kirschner wire, periosteum gaffing device, mosquito forcepss.Sometimes the window that must open seam utilizes above-mentioned apparatus to reset.No matter take which kind of mode, all have following shortcoming: one, operation wound are big, and tissue is peeled off extensively, and it is many to lose blood.During two, by the apparatus percutaneous reduction by leverage, must easily cause secondary fracture by the surrounding bone tissue as balance pivot.Three, the point of application is difficult to perpendicular to the bone piece, corrects its displacement of subsiding and has difficulty, poor effect.And in use in the process of state's patent 200820188283.7 disclosed " cave-in fracture restorers ", be difficult to accomplish that the direction of the application of force is consistent with the axle center of positor.And in the prior art, do not have effective instrument and can cooperate this positor to realize the axle center application of force.
Summary of the invention
The present invention provides a kind of and can realize the axis direction application of force to cave-in fracture restorer for solving the deficiencies in the prior art, thereby can comparatively exactly reset force be acted on the fracture special-purpose axle center of fracture that caves at the position hammer that resets that subsides.
The scheme that solves the technology of the present invention problem is: the special-purpose axle center of the fracture of caving in resets to hammer into shape and is made of first hammer, groove, interior catch, spring, outer catch, latch, draw ring, pin hole, spring groove, arc pin, arc cotter way, second hammer and handle.
First hammer and second hammer are cuboidal metal derby, the lower left of first hammer and the upper left side of second hammer are hinged, the bottom surface of first hammer and the end face of second hammer respectively have a semi-cylindrical groove, when the bottom surface of first hammer and the end face of second hammer were fitted, two grooves constituted a columniform through hole.It is holistic handle that the bottom surface of second hammer has with second hammer.
Have one be the arc pin of holistic arc with first hammer in the bottom surface of first hammer, have the arc cotter way of an arc, the center of circle of arc pin and arc cotter way all to be positioned at first hammer and second at the end face of second hammer and hammer into shape on the axial line of rotating shaft of hinged place.The arc pin can insert in the arc cotter way and the arc pin becomes clearance fit relationship with the arc cotter way.One pin hole is arranged on the sidewall of arc pin.
Spring groove is out the blind cylindrical hole on the sidewall of second hammer.Inner face at spring groove has a horizontal through hole, and this horizontal through hole communicates with described arc cotter way.Outer catch is the screwed annulus in lateral wall, and outer catch is bolted in the outer end inner wall of described spring groove.
The left end of latch is inclined-plane upwards, the middle part of latch be with latch be holistic in catch, latch is in the spring groove and the left end of latch passes described horizontal through hole and inserts in the pin hole, and the right-hand member of latch stretches out from outer catch middle part and is combined as a whole with draw ring.Interior catch and outside latch between the catch be with spring.
Before the use, earlier draw ring is pulled outwardly, the left end of latch is extracted out from pin hole, rotating first hammer then separates the bottom surface of first hammer and the end face of second hammer, in the manhole that the groove that makes the bar portion of cave-in fracture restorer be in first hammer and second hammer constitutes, again first hammer and second hammer are closed up, when the left justify of the pin hole of arc pin and described latch, the left end of latch inserts in the pin hole again under the promotion of spring, and this moment, the position relation of first hammer and second hammer was locked again.
Adopt such scheme, compared with prior art, the present invention has following marked improvement:
1. because the present invention can be placed in the bar portion of existing cave-in fracture restorer, therefore can be to cave-in fracture restorer in the axis direction application of force, thereby can exactly reset force be acted on the position that subsides of fracturing, improve the accuracy of operation greatly, reduce the difficulty of operation.
2. owing to adopt hinged mode to connect upper and lower half hammer among the present invention, and by spring controlled latch realize the locking of the two position relation, made things convenient for so on the one hand the two in conjunction with the time accurate location, also make the operation that the two is fixing become easier simultaneously.
Description of drawings
Fig. 1 is structural representation of the present invention.
Among the figure: 1. first is hammered in 2. grooves 3. the outer catch of catch 4. springs 5. 6. latches 7. draw rings 8. pin holes 9. spring grooves 10. arc pins 11. arc cotter ways 12. into shape second hammers 13. handles into shape
The specific embodiment
The invention will be further described below in conjunction with drawings and Examples.
The special-purpose axle center of the fracture of caving in resets to hammer into shape by first hammer 1, groove 2, interior catch 3, spring 4, outer catch 5, latch 6, draw ring 7, pin hole 8, spring groove 9, arc pin 10, arc cotter way 11, second hammer 12 and handle 13 and constitutes.
First hammer 1 and second hammer 12 are cuboidal metal derby, the upper left side of the lower left of first hammer 1 and second hammer 12 is hinged, the end face of the bottom surface of first hammer 1 and second hammer 12 respectively has a semi-cylindrical groove 2, when the end face of the bottom surface of first hammer 1 and second hammer 12 was fitted, two grooves 2 constituted a columniform through hole.It is holistic handle 13 that the bottom surface of second hammer 12 has with second hammer 12.
Have one be the arc pin 10 of holistic arc with first hammer 1 in first hammer bottom surface of 1, have the arc cotter way 11 of an arc, the center of circle of arc pin 10 and arc cotter way 11 all to be positioned at first hammer 1 at the end face of second hammer 12 and hammer into shape on the axial line of rotating shaft of 12 hinged places with second.Arc pin 10 can insert in the arc cotter way 11 and 11 one-tenth clearance fit relationship of arc pin 10 and arc cotter way.One pin hole 8 is arranged on the sidewall of arc pin 10.
Spring groove 9 is out the blind cylindrical hole on the sidewall of second hammer 12.Inner face at spring groove 9 has a horizontal through hole, and this horizontal through hole communicates with described arc cotter way 11.Outer catch 5 is the screwed annulus in lateral wall, and outer catch 5 is bolted in the outer end inner wall of described spring groove 9.
The left end of latch 6 is inclined-planes upwards, the middle part of latch 6 is to be catch 3 in holistic with latch 6, latch 6 is in the spring groove 9 and the left end of latch 6 passes described horizontal through hole and inserts in the pin hole 8, the right-hand member of latch 6 stretch out from outer catch 5 middle parts and with draw ring 7 in conjunction with as a whole.Interior catch 3 and outside latch 6 between the catch 5 be with spring 4.
Before the use, earlier draw ring 7 is pulled outwardly, the left end of latch 6 is extracted out from pin hole 8, rotating first hammer 1 then separates the bottom surface of first hammer 1 and the end face of second hammer 12, in the manhole that the groove 2 that makes the bar portion of cave-in fracture restorer be in first hammer 1 and second hammer 12 constitutes, again first hammer 1 and second hammer 12 are closed up, when the left justify of the pin hole 8 of arc pin 10 and described latch 6, the left end of latch 6 inserts in the pin hole 8 again under the promotion of spring 4, and this moment, the position relation of first hammer 1 and second hammer 12 was locked again.
Claims (1)
1. the special-purpose axle center of fracture that caves in resets hammer by first hammer, groove, interior catch, spring, outer catch, latch, draw ring, pin hole, spring groove, the arc pin, the arc cotter way, second hammer and handle constitute, it is characterized in that: first hammer and second hammer are cuboidal metal derby, the lower left of first hammer and the upper left side of second hammer are hinged, the bottom surface of first hammer and the end face of second hammer respectively have a semi-cylindrical groove, when the bottom surface of first hammer and the end face of second hammer are fitted, two grooves constitute a columniform through hole, it is holistic handle that the bottom surface of second hammer has with second hammer, have one to be the arc pin of holistic arc with first hammer in the bottom surface of first hammer, the arc cotter way that one arc is arranged at the end face of second hammer, the center of circle of arc pin and arc cotter way all is positioned on the axial line of first hammer and the rotating shaft of second hammer hinged place, the arc pin can insert in the arc cotter way and the arc pin becomes clearance fit relationship with the arc cotter way, one pin hole is arranged on the sidewall of arc pin, spring groove is out the blind cylindrical hole on the sidewall of second hammer, inner face at spring groove has a horizontal through hole, this horizontal through hole communicates with described arc cotter way, outer catch is the screwed annulus in lateral wall, outer catch is bolted in the outer end inner wall of described spring groove, the left end of latch is inclined-plane upwards, the middle part of latch be with latch be holistic in catch, latch is in the spring groove and the left end of latch passes described horizontal through hole and inserts in the pin hole, the right-hand member of latch stretch out from outer catch middle part and be combined with draw ring as a whole, interior catch and outside latch between the catch be with spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310112843.6A CN103190945B (en) | 2013-04-02 | 2013-04-02 | Axis resetting hammer special for collapse fracture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310112843.6A CN103190945B (en) | 2013-04-02 | 2013-04-02 | Axis resetting hammer special for collapse fracture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103190945A true CN103190945A (en) | 2013-07-10 |
| CN103190945B CN103190945B (en) | 2014-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310112843.6A Expired - Fee Related CN103190945B (en) | 2013-04-02 | 2013-04-02 | Axis resetting hammer special for collapse fracture |
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| Country | Link |
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| CN (1) | CN103190945B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106551716A (en) * | 2016-10-24 | 2017-04-05 | 中国科学院深圳先进技术研究院 | Endoscope-assistant surgery apparatus |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2652342Y (en) * | 2003-11-08 | 2004-11-03 | 戢翰升 | Suspending type reposition device for depressed cranial fracture |
| CN2768699Y (en) * | 2005-02-18 | 2006-04-05 | 孙德修 | Drill bushing fixing device for orthopedics |
| CN201286753Y (en) * | 2008-09-17 | 2009-08-12 | 济南市第三人民医院 | Cave-in fracture restorer |
| WO2010109327A1 (en) * | 2009-03-27 | 2010-09-30 | Lma Urology Limited | Surgical device |
| CN102038546A (en) * | 2010-08-31 | 2011-05-04 | 成都春江科技有限公司 | Oblique slip screwdriver operating rod for hand surgery |
| CN202397576U (en) * | 2011-12-31 | 2012-08-29 | 宁波市鄞州云帆工程咨询有限公司 | Pop-up collision type axial force generator |
-
2013
- 2013-04-02 CN CN201310112843.6A patent/CN103190945B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2652342Y (en) * | 2003-11-08 | 2004-11-03 | 戢翰升 | Suspending type reposition device for depressed cranial fracture |
| CN2768699Y (en) * | 2005-02-18 | 2006-04-05 | 孙德修 | Drill bushing fixing device for orthopedics |
| CN201286753Y (en) * | 2008-09-17 | 2009-08-12 | 济南市第三人民医院 | Cave-in fracture restorer |
| WO2010109327A1 (en) * | 2009-03-27 | 2010-09-30 | Lma Urology Limited | Surgical device |
| CN102038546A (en) * | 2010-08-31 | 2011-05-04 | 成都春江科技有限公司 | Oblique slip screwdriver operating rod for hand surgery |
| CN202397576U (en) * | 2011-12-31 | 2012-08-29 | 宁波市鄞州云帆工程咨询有限公司 | Pop-up collision type axial force generator |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106551716A (en) * | 2016-10-24 | 2017-04-05 | 中国科学院深圳先进技术研究院 | Endoscope-assistant surgery apparatus |
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| CN103190945B (en) | 2014-12-10 |
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