CN103271763B - Combined replacing type Stryker nail installing device - Google Patents
Combined replacing type Stryker nail installing device Download PDFInfo
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- CN103271763B CN103271763B CN201310190213.0A CN201310190213A CN103271763B CN 103271763 B CN103271763 B CN 103271763B CN 201310190213 A CN201310190213 A CN 201310190213A CN 103271763 B CN103271763 B CN 103271763B
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- mobile jib
- shaft shoulder
- boss
- connecting rod
- groove
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Abstract
The invention discloses a combined replacing type Stryker nail installing device used for implanting a bone traction needle into a bone. The combined replacing type Stryker nail installing device comprises a connecting rod and a clamping head main rod. An axial groove is formed in a shaft shoulder on the head portion of the connecting rod. Two first circular holes are formed in the shaft shoulder. A hand shank is fixed at the tail end of the connecting rod. A ball-shaped groove is formed in an arc-shaped surface boss at the tail end of the clamping head main rod. The arc-shaped surface boss can be embedded into the groove in the shaft shoulder. A first locking mechanism capable of locking the clamping head main rod in the groove is arranged at the shaft shoulder position. A first step, a second step and a third step are sequentially arranged on the head portion of the clamping head main rod from outside to inside and from top to bottom. The head portion of the clamping head main rod is provided with a circular groove and a square groove both of which can be matched with the bone traction needle. The second step is provided with two second circular holes, and the head portion of the clamping head main rod is provided with a second locking mechanism capable of locking the bone traction needle in the circular groove. The combined replacing type Stryker nail installing device has the advantages of being reliable in clamping and flexible and convenient to use.
Description
Technical field
The present invention relates to orthopedic medical device field, be specifically related to a kind of fix on the Shi Saike of support series products for implantable bone pull needle on skeleton follow closely device.
Background technology
In bone surgery, in order to install on sufferer breaking part skeleton, the product of fixed support class, usually need to use on Shi Saike and follow closely device, current used Shi Saike on, nail device is integral type structure, that is: handle and chuck as a whole, can not be split, offer circular trough vertically in chuck end, offer square groove vertically bottom circular trough, the width of square groove is less than the aperture of circular trough, square groove can with fine steel needle tail end tabling, prevent fine steel needle circumference rotate.During use, fine steel needle tail end is put into the square groove of chuck, then fine steel needle tip alignment is needed the position of upper nail, rotate nail device handle on Shi Saike, the square groove in chuck end forces fine steel needle to follow handle and rotates together, because fine steel needle head has cutting edge and screw thread, so fine steel needle can be driven when the handle is rotated to screw in bones, when fine steel needle enters in skeleton after certain position, fine steel needle is tightly connected with skeleton, for the installation of orthopaedics class support provides support.
The major defect Shi Saike of said structure following closely device existence is: the square groove in the chuck end of Shi Saike upper nail device can only block fine steel needle, when preventing from rotating, fine steel needle skids, can not locking bone pull needle, when upper nail, fine steel needle easily loosens, drop, and uses inconvenience.
Summary of the invention
The technical problem of solution required for the present invention is: provide the combination reliable, flexible and convenient to use of a kind of clamping to change on Shi Shisaike and follow closely device.
For solving the problem, the technical solution used in the present invention is: described combination is changed on Shi Shisaike and followed closely device, comprise connecting rod and chuck mobile jib, connecting rod head is provided with the shaft shoulder, shaft shoulder end offers groove vertically, the circumferential position symmetry of the shaft shoulder offers two the first circular holes, it is hemispherical bottom first circular hole, first circular hole and texturearunaperpendicular through, handle is fixed on connecting rod tail end, chuck mobile jib tail end is provided with arcwall face boss vertically, arcwall face boss offers ball recess, arcwall face boss can with the groove tabling on the shaft shoulder, arcwall face boss is embedded in after in groove, chuck mobile jib and connecting rod can not relatively rotate, being provided with at shaft shoulder place can by chuck mobile jib locking the first retaining mechanism in a groove, chuck mobile jib head from outside to inside, be disposed with first step from high to low, second step and the 3rd step, chuck mobile jib head offers circular trough vertically, square groove is offered vertically bottom circular trough, the width of square groove is less than the aperture of circular trough, square groove can with fine steel needle tail end tabling, circular trough can match with Bone traction shank portion, the circumferential position symmetry of second step offers two the second circular holes, it is hemispherical bottom second circular hole, second circular hole is vertical with circular trough through, chuck mobile jib head is provided with second retaining mechanism that fine steel needle can be locked in circular trough.
Further, aforesaid combination is changed on Shi Shisaike and is followed closely device, wherein, first retaining mechanism comprises the first steel ball and sliding sleeve, first steel ball is placed in the first circular hole, connecting rod on the right side of the shaft shoulder is set with successively the sleeve of spring and retainer spring, sliding sleeve movable set is on the shaft shoulder, and sliding sleeve inwall matches with the shaft shoulder, the left-hand portion of sliding sleeve inwall offers first step through hole, the aperture of first step through hole is greater than the aperture of sliding sleeve inwall, sliding sleeve inwall on the right side of first step through hole is provided with the first boss, and the first boss is between the shaft shoulder and spring, when sliding sleeve is moved to the left under the action of the spring and makes the first boss near the shaft shoulder, the first steel ball is pressed in the ball recess of chuck mobile jib tail end by sliding sleeve inwall, and chuck mobile jib and connecting rod are locked, sliding sleeve is moved right make the first boss away from the shaft shoulder and first step through hole is positioned at above the first steel ball time, the first steel ball unclamps, and now chuck mobile jib can be extracted in the groove of connecting rod.
Further, aforesaid combination is changed on Shi Shisaike and is followed closely device, and wherein, quill to locate mode is: on the right side of sleeve, gear leans against on handle.
Further, aforesaid combination is changed on Shi Shisaike and is followed closely device, wherein, second retaining mechanism comprises the second steel ball and pressure cap, second steel ball is placed in the second circular hole, chuck mobile jib on the right side of the 3rd step is provided with screw thread, nut screws mutually with screw thread, pressure cap movable set is at chuck mobile jib head, and pressure cap inwall matches with second step, the left-hand portion of pressure cap inwall is provided with second step through hole, the aperture of second step through hole is greater than the aperture of pressure cap inwall, pressure cap inwall on the right side of second step through hole is provided with the second boss, and the second boss is between second step and nut, be moved to the left by pressure cap when making the second boss near second step, the second steel ball is pressed in the groove in Bone traction shank portion by pressure cap inwall, and fine steel needle and chuck mobile jib are locked, pressure cap is moved right make the second boss away from second step and second step through hole is positioned at above the second steel ball time, the second steel ball unclamps, and now fine steel needle can be extracted in the square groove of chuck mobile jib.
Further, aforesaid combination is changed on Shi Shisaike and is followed closely device, wherein, is provided with elongated slot block vertically at connecting rod tail end, and connecting rod is fixedly connected with handle tabling by elongated slot block.
The invention has the beneficial effects as follows: Shi Saike upper nail device adopts combination replacing formula structure, that is: by connecting rod, chuck mobile jib, fine steel needle flexible assembling together, during operation, the specification of fine steel needle as required can select the chuck mobile jib of same size, then chuck mobile jib is connected with connecting rod, respectively fine steel needle and chuck mobile jib can be locked by the Qian He of steel ball with associated ball groove, and chuck mobile jib and connecting rod are locked, prevent fine steel needle or chuck mobile jib in use procedure from loosening, drop, make to connect reliably between each parts of nail device on Shi Saike, save operating time, flexible and convenient to use.
Accompanying drawing explanation
Fig. 1 is the structural representation that nail device on Shi Shisaike is changed in combination of the present invention.
Fig. 2 is the structural representation of connecting rod.
Fig. 3 is the structural representation of sliding sleeve.
Fig. 4 is the structural representation of chuck mobile jib.
Fig. 5 is the structural representation overlooked in Fig. 4 shown in direction.
Fig. 6 is the structural representation of pressure cap.
Fig. 7 is the syndeton schematic diagram of fine steel needle and chuck mobile jib.
Detailed description of the invention
Below in conjunction with drawings and the specific embodiments, technical solutions according to the invention are described in further detail.
As Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, shown in Fig. 7, combination described in the present embodiment is changed on Shi Shisaike and is followed closely device, comprise connecting rod 8 and chuck mobile jib 1, connecting rod 8 head is provided with the shaft shoulder 81, the shaft shoulder 81 end offers groove 83 vertically, the circumferential position symmetry of the shaft shoulder 81 offers two the first circular holes 84, be hemispherical bottom first circular hole 84, first circular hole 84 is vertical with groove 83 through, connecting rod 8 tail end is provided with elongated slot block 82 vertically, connecting rod 8 is fixedly connected with handle 10 tabling by elongated slot block 82, chuck mobile jib 1 tail end is provided with arcwall face boss 12 vertically, arcwall face boss 12 offers ball recess 18, arcwall face boss 12 can with groove 83 tabling on the shaft shoulder 81, in the present embodiment, groove 83 for cross section be the groove of flat rectangular, like this itself and arcwall face boss 12 mutually chimeric after, chuck mobile jib 1 and connecting rod 8 can not relatively rotate, first retaining mechanism that chuck mobile jib 1 can be locked in groove 83 is provided with at the shaft shoulder 81 place, chuck mobile jib 1 head from outside to inside, be disposed with first step 13 from high to low, second step 14 and the 3rd step 15, chuck mobile jib 1 on the right side of 3rd step 15 is provided with screw thread 17, chuck mobile jib 1 head offers circular trough 111 vertically, the bottom of circular trough 111 offers square groove 112 vertically, the width of square groove 112 is less than the aperture of circular trough 111, square groove 112 and fine steel needle 11 tail end tabling, circular trough 111 matches with fine steel needle 11 bar portion, the circumferential position symmetry of second step 14 offers two the second circular holes 16, be hemispherical bottom second circular hole 16, second circular hole 16 is vertical with circular trough 111 through, chuck mobile jib 1 head is provided with second retaining mechanism that fine steel needle 11 can be locked in circular trough 111.In the present embodiment, first retaining mechanism forms primarily of the first steel ball 5 and sliding sleeve 6, first steel ball 5 is placed in the first circular hole 84, connecting rod 8 on the right side of the shaft shoulder 81 is set with successively the sleeve 9 of spring 7 and retainer spring 7, sleeve 9 gear leans against on handle 10, sliding sleeve 6 movable set is on the shaft shoulder 81, and sliding sleeve inwall 63 matches with the shaft shoulder 81, the left-hand portion of sliding sleeve inwall 63 offers first step through hole 61, the aperture of first step through hole 61 is greater than the aperture of sliding sleeve inwall 63, sliding sleeve inwall 63 on the right side of first step through hole 61 is provided with the first boss 62, and the first boss 62 is between the shaft shoulder 81 and spring 7, sliding sleeve 6 be moved to the left under the effect of spring 7 make the first boss 62 near on the right side of the shaft shoulder 81 time, the first steel ball 5 is pressed in the ball recess 18 of chuck mobile jib 1 tail end by sliding sleeve inwall 63, and chuck mobile jib 1 and connecting rod 8 are locked, sliding sleeve 6 is moved right make the first boss 62 away from the right side of the shaft shoulder 81 and first step through hole 61 is positioned at above the first steel ball 5 time, the first steel ball 5 unclamps, and now chuck mobile jib 1 can be extracted in the groove 83 of connecting rod 8.Second retaining mechanism forms primarily of the second steel ball 4 and pressure cap 3, second steel ball 4 is placed in the second circular hole 16, nut 2 screws mutually with screw thread 17, pressure cap 3 movable set is at chuck mobile jib 1 head, and pressure cap inwall 33 matches with second step 14, the left-hand portion of pressure cap inwall 33 is provided with second step through hole 31, the aperture of second step through hole 31 is greater than the aperture of pressure cap inwall 33, pressure cap inwall 33 on the right side of second step through hole 31 is provided with the second boss 32, and the second boss 32 is between second step 14 and nut 2; Pressure cap 3 is moved to the left make the second boss 32 near on the right side of second step 14 time, the second steel ball 4 is pressed in the groove in fine steel needle 11 bar portion by pressure cap inwall 33, and fine steel needle 11 and chuck mobile jib 1 are locked; Pressure cap 3 is moved right make the second boss 32 away from second step 14 and second step through hole 31 is positioned at above the second steel ball 4 time, the second steel ball 4 unclamps, and now fine steel needle 11 can be extracted in the square groove 112 of chuck mobile jib 1.Nut 2 plays the position-limiting action of gear by the second boss 32.
During operation, the chuck mobile jib 1 corresponding with its model is selected according to required fine steel needle 11, pressure cap 3 is moved right and makes the second boss 32 away from second step 14, and second step through hole 31 is positioned at above the second steel ball 4, now, second steel ball 4 loosens, then fine steel needle 11 tail end is filled in the square groove 112 of chuck mobile jib 1, when the groove in fine steel needle 11 bar portion arrives the second circular hole 16 bottom position, pressure cap 3 is moved to the left and makes the second boss 32 near on the right side of second step 14, now pressure cap inwall 33 compresses the second steel ball 4, the second steel ball 4 is made to embed in the groove in fine steel needle 11 bar portion, fine steel needle 11 and chuck mobile jib 1 are locked, make fine steel needle 11 can not loose or dislocation, fine steel needle 11 is installed reliably, then pinning sliding sleeve 6 and moving right makes the first boss 62 away from the right side of the shaft shoulder 81, and first step through hole 61 is positioned at above the first steel ball 5, now, first steel ball 5 unclamps, then chuck mobile jib 1 tail end of clamping fine steel needle 11 is filled in the groove 83 of connecting rod 8, when the ball recess 18 of chuck mobile jib 1 tail end arrives the position of the first circular hole 84, unclamp sliding sleeve 6, sliding sleeve 6 gets back to origin-location under the effect of spring 7, now sliding sleeve inwall 63 compresses the first steel ball 5, the first steel ball 5 is made to embed in the ball recess 18 of chuck mobile jib 1 tail end, chuck mobile jib 1 and connecting rod 8 are locked, make chuck mobile jib 1 can not from loose or dislocation in connecting rod 8, chuck mobile jib 1 is installed reliably, Shi Saike upper nail device has been assembled.During operation, fine steel needle 11 tip alignment is needed the position of upper nail, left hand buttresses on Shi Saike and follows closely device, and the right hand holds nail device handle 10, and turn clockwise handle 10, fine steel needle 11 is followed handle 10 and is rotated together, because fine steel needle 11 head has cutting edge and screw thread, when handle 10 is rotated, fine steel needle 11 can be driven to screw in bones, when fine steel needle 11 to enter in skeleton after certain position, fine steel needle 11 is tightly connected with skeleton, for the installation of orthopaedics class support provides support.When needing the fine steel needle 11 using other specifications, only need the sliding sleeve 6 that moves right, first steel ball 5 is unclamped, outwards extract chuck mobile jib 1, can outwards extract fine steel needle 11 as a same reason, then select, with the chuck mobile jib 1 of fine steel needle 11 same size, to re-assembly, use very convenient, saved the time changing fine steel needle 11.
Claims (5)
1. combination is changed on Shi Shisaike and is followed closely device, comprise connecting rod and chuck mobile jib, it is characterized in that: connecting rod head is provided with the shaft shoulder, shaft shoulder end offers groove vertically, the circumferential position symmetry of the shaft shoulder offers two the first circular holes, it is hemispherical bottom first circular hole, first circular hole and texturearunaperpendicular through, handle is fixed on connecting rod tail end, chuck mobile jib tail end is provided with arcwall face boss vertically, arcwall face boss offers ball recess, arcwall face boss can with the groove tabling on the shaft shoulder, arcwall face boss is embedded in after in groove, chuck mobile jib and connecting rod can not relatively rotate, being provided with at shaft shoulder place can by chuck mobile jib locking the first retaining mechanism in a groove, chuck mobile jib head from outside to inside, be disposed with first step from high to low, second step and the 3rd step, chuck mobile jib head offers circular trough vertically, square groove is offered vertically bottom circular trough, the width of square groove is less than the aperture of circular trough, square groove can with fine steel needle tail end tabling, circular trough can match with Bone traction shank portion, the circumferential position symmetry of second step offers two the second circular holes, it is hemispherical bottom second circular hole, second circular hole is vertical with circular trough through, chuck mobile jib head is provided with second retaining mechanism that fine steel needle can be locked in circular trough.
2. change on Shi Shisaike according to combination according to claim 1 and follow closely device, it is characterized in that: the first retaining mechanism comprises the first steel ball and sliding sleeve, first steel ball is placed in the first circular hole, connecting rod on the right side of the shaft shoulder is set with successively the sleeve of spring and retainer spring, sliding sleeve movable set is on the shaft shoulder, and sliding sleeve inwall matches with the shaft shoulder, the left-hand portion of sliding sleeve inwall offers first step through hole, the aperture of first step through hole is greater than the aperture of sliding sleeve inwall, sliding sleeve inwall on the right side of first step through hole is provided with the first boss, and the first boss is between the shaft shoulder and spring, when sliding sleeve is moved to the left under the action of the spring and makes the first boss near the shaft shoulder, the first steel ball is pressed in the ball recess of chuck mobile jib tail end by sliding sleeve inwall, and chuck mobile jib and connecting rod are locked, sliding sleeve is moved right make the first boss away from the shaft shoulder and first step through hole is positioned at above the first steel ball time, the first steel ball unclamps, and now chuck mobile jib can be extracted in the groove of connecting rod.
3. change on Shi Shisaike according to the combination described in claim 2 and follow closely device, it is characterized in that: quill to locate mode is: on the right side of sleeve, gear leans against on handle.
4. change on Shi Shisaike according to combination according to claim 1 and follow closely device, it is characterized in that: the second retaining mechanism comprises the second steel ball and pressure cap, second steel ball is placed in the second circular hole, chuck mobile jib on the right side of the 3rd step is provided with screw thread, nut screws mutually with screw thread, pressure cap movable set is at chuck mobile jib head, and pressure cap inwall matches with second step, the left-hand portion of pressure cap inwall is provided with second step through hole, the aperture of second step through hole is greater than the aperture of pressure cap inwall, pressure cap inwall on the right side of second step through hole is provided with the second boss, and the second boss is between second step and nut, be moved to the left by pressure cap when making the second boss near second step, the second steel ball is pressed in the groove in Bone traction shank portion by pressure cap inwall, and fine steel needle and chuck mobile jib are locked, pressure cap is moved right make the second boss away from second step and second step through hole is positioned at above the second steel ball time, the second steel ball unclamps, and now fine steel needle can be extracted in the square groove of chuck mobile jib.
5. change on Shi Shisaike according to the combination described in claim 1 or 2 and follow closely device, it is characterized in that: be provided with elongated slot block vertically at connecting rod tail end, connecting rod is fixedly connected with handle tabling by elongated slot block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310190213.0A CN103271763B (en) | 2013-05-22 | 2013-05-22 | Combined replacing type Stryker nail installing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310190213.0A CN103271763B (en) | 2013-05-22 | 2013-05-22 | Combined replacing type Stryker nail installing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103271763A CN103271763A (en) | 2013-09-04 |
| CN103271763B true CN103271763B (en) | 2014-12-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310190213.0A Expired - Fee Related CN103271763B (en) | 2013-05-22 | 2013-05-22 | Combined replacing type Stryker nail installing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103271763B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109938822A (en) * | 2017-12-21 | 2019-06-28 | 上海三友医疗器械股份有限公司 | The installation tool of bone cement screw |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0441256A1 (en) * | 1990-02-08 | 1991-08-14 | Gebrüder Martin GmbH & Co. KG | Tool arrangement for bone nails |
| FR2689751A1 (en) * | 1992-04-08 | 1993-10-15 | Medinov Sa | Positioning and impacting assembly for intramedullary nail - comprises nail gripping arm with assembly of slidably-fitting support and securing components aligning nail with guide in medullary canal |
| EP0888751A2 (en) * | 1997-07-02 | 1999-01-07 | Howmedica International Inc. | Apparatus for releasably attaching operating means to a surgical element or tool |
| CN201701294U (en) * | 2010-04-23 | 2011-01-12 | 创生医疗器械(江苏)有限公司 | Tension screw punch |
| CN201949117U (en) * | 2011-01-17 | 2011-08-31 | 童松林 | Quick-change handle |
| CN102379738A (en) * | 2011-09-19 | 2012-03-21 | 苏州欣荣博尔特医疗器械有限公司 | Spinal screw nailing device |
| CN203303144U (en) * | 2013-05-22 | 2013-11-27 | 苏州爱得科技发展有限公司 | Combination-type replaceable Stryker nailing device |
-
2013
- 2013-05-22 CN CN201310190213.0A patent/CN103271763B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0441256A1 (en) * | 1990-02-08 | 1991-08-14 | Gebrüder Martin GmbH & Co. KG | Tool arrangement for bone nails |
| FR2689751A1 (en) * | 1992-04-08 | 1993-10-15 | Medinov Sa | Positioning and impacting assembly for intramedullary nail - comprises nail gripping arm with assembly of slidably-fitting support and securing components aligning nail with guide in medullary canal |
| EP0888751A2 (en) * | 1997-07-02 | 1999-01-07 | Howmedica International Inc. | Apparatus for releasably attaching operating means to a surgical element or tool |
| CN201701294U (en) * | 2010-04-23 | 2011-01-12 | 创生医疗器械(江苏)有限公司 | Tension screw punch |
| CN201949117U (en) * | 2011-01-17 | 2011-08-31 | 童松林 | Quick-change handle |
| CN102379738A (en) * | 2011-09-19 | 2012-03-21 | 苏州欣荣博尔特医疗器械有限公司 | Spinal screw nailing device |
| CN203303144U (en) * | 2013-05-22 | 2013-11-27 | 苏州爱得科技发展有限公司 | Combination-type replaceable Stryker nailing device |
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| Publication number | Publication date |
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| CN103271763A (en) | 2013-09-04 |
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Address after: 215625 Zhangjiagang, Jiangsu Jin Nan Road, Fengzhen Patentee after: SUZHOU AND SCIENCE & TECHNOLOGY DEVELOPMENT CO., LTD, Address before: 215600 Jiangsu, Suzhou, Fengzhen Jin Nan Road, Suzhou, love of science and Technology Development Co., Ltd. Patentee before: Suzhou AND Science & Technology Development Co., Ltd. |
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Granted publication date: 20141224 Termination date: 20170522 |
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