CN103271763A - Combined replacing type Stryker nail installing device - Google Patents
Combined replacing type Stryker nail installing device Download PDFInfo
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- CN103271763A CN103271763A CN2013101902130A CN201310190213A CN103271763A CN 103271763 A CN103271763 A CN 103271763A CN 2013101902130 A CN2013101902130 A CN 2013101902130A CN 201310190213 A CN201310190213 A CN 201310190213A CN 103271763 A CN103271763 A CN 103271763A
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- mobile jib
- shaft shoulder
- boss
- groove
- connecting rod
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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 the orthopedic medical device field, be specifically related to a kind of Shi Saike that fixes the support series products for implantable bone pull needle on skeleton and follow closely device.
Background technology
In bone surgery, for the product in the installation of sufferer fracture place skeleton, fixed support class, usually need to use Shi Saike to go up the nail device, it is integral structure that present employed Shi Saike goes up the nail device, that is: handle and chuck are as a whole, can not be split, offer circular trough vertically in the chuck end, the circular trough bottom offers square groove vertically, and the width of square groove is less than the aperture of circular trough, square groove can with fine steel needle tail end tabling, prevent that fine steel needle from circumferentially rotating.During use, the fine steel needle tail end is put into the square groove of chuck, then the fine steel needle tip alignment need be gone up the position of nail, rotation Shi Saike goes up nail device handle, and the square groove in the chuck end forces fine steel needle to follow handle and rotates together, because the fine steel needle head has cutting edge and screw thread, screw in bones so when handle rotates, can drive fine steel needle, behind the certain position, fine steel needle tightly links to each other with skeleton in fine steel needle enters skeleton, for the installation of orthopaedics class support provides support.
The major defect that the Shi Saike of said structure goes up the existence of nail device is: the square groove in the chuck end of the last nail of Shi Saike device can only block fine steel needle, fine steel needle skids when preventing from rotating, and can not lock fine steel needle, when nail, fine steel needle becomes flexible easily, drops, and uses inconvenient.
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 Shi Shisaike and go up the nail device.
For addressing the above problem, the technical solution used in the present invention is: described combination is changed Shi Shisaike and is gone up the nail device, comprise connecting rod and chuck mobile jib, the 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 first circular holes, first circular hole bottom is hemispherical, first circular hole is vertical with groove to connect, handle is fixed on the connecting rod tail end, chuck mobile jib tail end is provided with the arcwall face boss vertically, offer ball recess on the arcwall face boss, the arcwall face boss can with the shaft shoulder on the groove tabling, after the arcwall face boss is embedded in the groove, chuck mobile jib and connecting rod can not relatively rotate, and are provided with first retaining mechanism that the chuck mobile jib can be locked in the groove at shaft shoulder place; 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, the circular trough bottom offers square groove vertically, 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 fine steel needle bar portion, the circumferential position symmetry of second step offers two second circular holes, second circular hole bottom is hemispherical, second circular hole is vertical with circular trough to connect, and is provided with second retaining mechanism that fine steel needle can be locked in the circular trough at chuck mobile jib head.
Further, aforesaid combination is changed Shi Shisaike and is gone up the nail device, wherein, first retaining mechanism comprises first steel ball and sliding sleeve, first steel ball is placed in first circular hole, on the connecting rod on shaft shoulder right side, be set with the sleeve of spring and retainer spring successively, the sliding sleeve movable set is on the shaft shoulder, and the sliding sleeve inwall matches with the shaft shoulder, the left-hand portion of sliding sleeve inwall offers the first step through hole, the aperture of first step through hole is greater than the aperture of sliding sleeve inwall, and the sliding sleeve inwall on first step through hole right side is provided with first boss, and first boss is between the shaft shoulder and spring; Slide under the effect of spring and be moved to the left when making the boss of winning near the shaft shoulder, the sliding sleeve inwall is pressed on first steel ball in the ball recess of chuck mobile jib tail end, makes the locking of chuck mobile jib and connecting rod; Sliding sleeve is moved right when making the boss of winning be positioned at first steel ball top away from the shaft shoulder and first step through hole, and first steel ball unclamps, and can extract the chuck mobile jib this moment in the groove of connecting rod.
Further, aforesaid combination is changed Shi Shisaike and gone up the nail device, and wherein, quill to locate mode is: sleeve right side retaining leans against on the handle.
Further, aforesaid combination is changed Shi Shisaike and is gone up the nail device, wherein, second retaining mechanism comprises second steel ball and pressure cap, second steel ball is placed in second circular hole, the chuck mobile jib on the 3rd step right side is provided with screw thread, nut screws mutually with screw thread, the pressure cap movable set is at chuck mobile jib head, and the pressure cap inwall matches with second step, and the left-hand portion of pressure cap inwall is provided with the second step through hole, and the aperture of second step through hole is greater than the aperture of pressure cap inwall, the pressure cap inwall on second step through hole right side is provided with second boss, and second boss is between second step and nut; Pressure cap is moved to the left when making second boss near second step, and the pressure cap inwall is pressed on second steel ball in the groove of fine steel needle bar portion, makes the locking of fine steel needle and chuck mobile jib; Pressure cap is moved right when making that second boss is positioned at second steel ball top away from second step and second step through hole, and second steel ball unclamps, and can extract fine steel needle this moment in the square groove of chuck mobile jib.
Further, aforesaid combination is changed Shi Shisaike and is gone up the nail device, wherein, is provided with the elongated slot piece vertically at the connecting rod tail end, and connecting rod is also fixedlyed connected with the handle tabling by the elongated slot piece.
The invention has the beneficial effects as follows: the last nail of Shi Saike device adopts combination replacing formula structure, that is: with connecting rod, the chuck mobile jib, fine steel needle fits together flexibly, during operation, the specification of fine steel needle that can be is as required selected the chuck mobile jib of same size, then the chuck mobile jib is connected with connecting rod, can be respectively with fine steel needle and the locking of chuck mobile jib by the chimeric of steel ball and associated ball groove, and with chuck mobile jib and connecting rod locking, prevent in the use that fine steel needle or chuck mobile jib are loosening, drop, Shi Saike is gone up to be connected between each parts of following closely device reliably, save operating time, flexible and convenient to use.
Description of drawings
Fig. 1 is that the structural representation that Shi Shisaike goes up the nail device 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 overlooks the structural representation shown in the direction among Fig. 4.
Fig. 6 is the structural representation of pressure cap.
Fig. 7 is the syndeton sketch map of fine steel needle and chuck mobile jib.
The specific embodiment
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 Figure 7, the described combination of present embodiment is changed Shi Shisaike and is gone up the nail device, comprise connecting rod 8 and chuck mobile jib 1, connecting rod 8 heads are provided with the shaft shoulder 81, the shaft shoulder 81 ends offer groove 83 vertically, the circumferential position symmetry of the shaft shoulder 81 offers two first circular holes 84, first circular hole, 84 bottoms are hemispherical, first circular hole 84 and groove 83 vertical perforations, connecting rod 8 tail ends are provided with elongated slot piece 82 vertically, connecting rod 8 is also fixedlyed connected with handle 10 tablings by elongated slot piece 82, chuck mobile jib 1 tail end is provided with arcwall face boss 12 vertically, offer ball recess 18 on the arcwall face boss 12, arcwall face boss 12 can with the shaft shoulder 81 on groove 83 tablings, in the present embodiment, groove 83 is the square groove of prolate for cross section, like this itself and arcwall face boss 12 chimeric mutually after, chuck mobile jib 1 and connecting rod 8 can not relatively rotate, and are provided with first retaining mechanism that chuck mobile jib 1 can be locked in the groove 83 at the shaft shoulder 81 places; 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, the chuck mobile jib 1 on the 3rd step 15 right sides 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 tablings, circular trough 111 matches with fine steel needle 11 bar portions, the circumferential position symmetry of second step 14 offers two second circular holes 16, second circular hole, 16 bottoms are hemispherical, second circular hole 16 and circular trough 111 vertical perforations are provided with second retaining mechanism that fine steel needle 11 can be locked in the circular trough 111 at chuck mobile jib 1 head.In the present embodiment, first retaining mechanism mainly is made up of first steel ball 5 and sliding sleeve 6, first steel ball 5 is placed in first circular hole 84, on the connecting rod 8 on the shaft shoulder 81 right sides, be set with the sleeve 9 of spring 7 and retainer spring 7 successively, sleeve 9 retainings lean against on the handle 10, sliding sleeve 6 movable sets are 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, the sliding sleeve inwall 63 on first step through hole 61 right sides is provided with first boss 62, and first boss 62 is between the shaft shoulder 81 and spring 7; Sliding sleeve 6 is moved to the left under the effect of spring 7 when making the boss 62 of winning near the shaft shoulder 81 right sides, and sliding sleeve inwall 63 is pressed on first steel ball 5 in the ball recess 18 of chuck mobile jib 1 tail end, makes chuck mobile jib 1 and connecting rod 8 lockings; Sliding sleeve 6 is moved right when making the boss 62 of winning be positioned at first steel ball, 5 tops away from the shaft shoulder 81 right sides and first step through hole 61, and first steel ball 5 unclamps, and can extract chuck mobile jib 1 this moment in the groove 83 of connecting rod 8.Second retaining mechanism mainly is made up of second steel ball 4 and pressure cap 3, second steel ball 4 is placed in second circular hole 16, nut 2 screws mutually with screw thread 17, pressure cap 3 movable sets are 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, the pressure cap inwall 33 on second step through hole 31 right sides is provided with second boss 32, and second boss 32 is between second step 14 and nut 2; Pressure cap 3 is moved to the left when making second boss 32 near second step 14 right sides, and pressure cap inwall 33 is pressed on second steel ball 4 in the groove of fine steel needle 11 bar portions, makes fine steel needle 11 and 1 locking of chuck mobile jib; Pressure cap 3 is moved right when making that second boss 32 is positioned at second steel ball, 4 tops away from second step 14 and second step through hole 31, and second steel ball 4 unclamps, and can extract fine steel needle 11 this moment in the square groove 112 of chuck mobile jib 1.Nut 2 plays retaining by the position-limiting action of second boss 32.
During operation, select the chuck mobile jib 1 corresponding with its model according to needed fine steel needle 11, pressure cap 3 moved right make second boss 32 away from second step 14, and second step through hole 31 is positioned at second steel ball, 4 tops, at this moment, second steel ball 4 is loosening, then fine steel needle 11 tail ends are filled in the square groove 112 of chuck mobile jib 1, when the groove of fine steel needle 11 bar portions arrives second circular hole, 16 bottom positions, pressure cap 3 is moved to the left makes second boss 32 near second step 14 right sides, pressure cap inwall 33 compresses second steel ball 4 at this moment, second steel ball 4 is embedded in the groove of fine steel needle 11 bar portions, with fine steel needle 11 and 1 locking of chuck mobile jib, make that fine steel needle 11 can loose or dislocation, fine steel needle 11 is installed reliable; Then pinning sliding sleeve 6 and moving right makes the boss 62 of winning away from the shaft shoulder 81 right sides, and first step through hole 61 is positioned at first steel ball, 5 tops, at this moment, first steel ball 5 unclamps, then chuck mobile jib 1 tail end of the good fine steel needle 11 of clamping 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 first circular hole 84, unclamp sliding sleeve 6, sliding sleeve 6 is got back to the origin-location under the effect of spring 7, sliding sleeve inwall 63 compresses first steel ball 5 at this moment, first steel ball 5 is embedded in the ball recess 18 of chuck mobile jib 1 tail end, with chuck mobile jib 1 and connecting rod 8 lockings, make that chuck mobile jib 1 can be from loose or dislocation in the connecting rod 8, chuck mobile jib 1 is installed reliable, and the assembling of the last nail of Shi Saike device is finished.During operation, the position that fine steel needle 11 tip alignment need be gone up nail, left hand buttresses Shi Saike and goes up the nail device, and the right hand is held nail device handle 10, and handle 10 turns clockwise, fine steel needle 11 is followed handle 10 and is rotated together, because fine steel needle 11 heads have cutting edge and screw thread, can drive fine steel needle 11 when making handle 10 rotations and screw in bones, when fine steel needle 11 enters in the skeleton behind the certain position, fine steel needle 11 tightly links to each other with skeleton, for the installation of orthopaedics class support provides support.When needs use the fine steel needle 11 of other specifications, sliding sleeve 6 only need move 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 the chuck mobile jib 1 of selection and fine steel needle 11 same sizes re-assemblies, use very conveniently, saved the time of changing fine steel needle 11.
Claims (5)
1. combination is changed Shi Shisaike and is gone up the nail device, comprise connecting rod and chuck mobile jib, it is characterized in that: the 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 first circular holes, first circular hole bottom is hemispherical, first circular hole is vertical with groove to connect, handle is fixed on the connecting rod tail end, chuck mobile jib tail end is provided with the arcwall face boss vertically, offer ball recess on the arcwall face boss, the arcwall face boss can with the shaft shoulder on the groove tabling, after the arcwall face boss was embedded in the groove, chuck mobile jib and connecting rod can not relatively rotate, and were provided with first retaining mechanism that the chuck mobile jib can be locked in the groove at shaft shoulder place; 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, the circular trough bottom offers square groove vertically, 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 fine steel needle bar portion, the circumferential position symmetry of second step offers two second circular holes, second circular hole bottom is hemispherical, second circular hole is vertical with circular trough to connect, and is provided with second retaining mechanism that fine steel needle can be locked in the circular trough at chuck mobile jib head.
2. change Shi Shisaike according to the described combination of claim 1 and go up the nail device, it is characterized in that: first retaining mechanism comprises first steel ball and sliding sleeve, first steel ball is placed in first circular hole, on the connecting rod on shaft shoulder right side, be set with the sleeve of spring and retainer spring successively, the sliding sleeve movable set is on the shaft shoulder, and the sliding sleeve inwall matches with the shaft shoulder, the left-hand portion of sliding sleeve inwall offers the first step through hole, the aperture of first step through hole is greater than the aperture of sliding sleeve inwall, the sliding sleeve inwall on first step through hole right side is provided with first boss, and first boss is between the shaft shoulder and spring; Slide under the effect of spring and be moved to the left when making the boss of winning near the shaft shoulder, the sliding sleeve inwall is pressed on first steel ball in the ball recess of chuck mobile jib tail end, makes the locking of chuck mobile jib and connecting rod; Sliding sleeve is moved right when making the boss of winning be positioned at first steel ball top away from the shaft shoulder and first step through hole, and first steel ball unclamps, and can extract the chuck mobile jib this moment in the groove of connecting rod.
3. change Shi Shisaike according to the described combination of claim 2 and go up the nail device, it is characterized in that: quill to locate mode is: sleeve right side retaining leans against on the handle.
4. change Shi Shisaike according to the described combination of claim 1 and go up the nail device, it is characterized in that: second retaining mechanism comprises second steel ball and pressure cap, second steel ball is placed in second circular hole, the chuck mobile jib on the 3rd step right side is provided with screw thread, nut screws mutually with screw thread, the pressure cap movable set is at chuck mobile jib head, and the pressure cap inwall matches with second step, the left-hand portion of pressure cap inwall is provided with the second step through hole, the aperture of second step through hole is greater than the aperture of pressure cap inwall, the pressure cap inwall on second step through hole right side is provided with second boss, and second boss is between second step and nut; Pressure cap is moved to the left when making second boss near second step, and the pressure cap inwall is pressed on second steel ball in the groove of fine steel needle bar portion, makes the locking of fine steel needle and chuck mobile jib; Pressure cap is moved right when making that second boss is positioned at second steel ball top away from second step and second step through hole, and second steel ball unclamps, and can extract fine steel needle this moment in the square groove of chuck mobile jib.
5. change Shi Shisaike according to claim 1 or 2 described combinations and go up the nail device, it is characterized in that: be provided with the elongated slot piece vertically at the connecting rod tail end, connecting rod is also fixedlyed connected with the handle tabling by the elongated slot piece.
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 true CN103271763A (en) | 2013-09-04 |
| CN103271763B 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 |
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| CN (1) | CN103271763B (en) |
Cited By (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 |
Cited By (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 |
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| Publication number | Publication date |
|---|---|
| CN103271763B (en) | 2014-12-24 |
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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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| 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: 20141224 Termination date: 20170522 |