CN104161583B - A kind of medical dynamic torque tool with counting and self-destroying function - Google Patents
A kind of medical dynamic torque tool with counting and self-destroying function Download PDFInfo
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- CN104161583B CN104161583B CN201410405410.4A CN201410405410A CN104161583B CN 104161583 B CN104161583 B CN 104161583B CN 201410405410 A CN201410405410 A CN 201410405410A CN 104161583 B CN104161583 B CN 104161583B
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- enumerator
- gear
- outer casing
- counting
- self
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/92—Impactors or extractors, e.g. for removing intramedullary devices
Abstract
The invention provides a kind of medical dynamic torque tool with counting and self-destroying function, comprise and form a torsion main body by handle cover and housing combination, the inner chamber of torsion main body is provided with outer casing sleeve, screwdriver bit is had in the lower end releasable connection of outer casing sleeve, the inner chamber of outer casing sleeve is provided with clamping device and counting self-desttruction equipment, counting self-desttruction equipment includes enumerator, enumerator end cap, enumerator end cap screw, connecting bolt and the first compression spring, be provided with meson in the middle of connecting bolt, the spring section between meson and enumerator is compressive state.When the number of times of enumerator labelling reaches preset maximum value, the upper end of connecting bolt will depart from from enumerator end cap screw, cause the screwdriver bit when twisting torsion main body to be no longer subject to torsion, and self-destruction occurs in this medical dynamic torque tool inside; Present invention achieves medical dynamic torque tool only to use by limited number of time, ensure the medical safety of patient.
Description
Technical field
The present invention relates to medical instruments field, refer to a kind of medical dynamic torque tool with counting and self-destroying function especially.
Background technology
At present, known screwdriver by handle, knife bar and cutter head three part form.Medical screw driver is primary for clinical splintage.Find in clinical practice, during row internal fixtion removal surgery, corresponding to the implants of different company's different model in patient body, often need the screwdriver preparing different size and model.Do not mate once model and just will face and cannot process screw, and the difficult situation of correct model screwdriver of again sterilizing must be waited for.Not only extend operating time, also add patient infection, hemorrhage many risks.
In treatment clinical course, most cases all can adopt and same medical dynamic torque tool be carried out Boards wall, and the medical dynamic torque tool under prior art cannot accomplish single use, more cannot accomplish that disposable self-destructing uses; If disinfection is not handled properly, be then easy to form cross infection, be unfavorable for the medical security to patient.
Summary of the invention
The problem that the present invention is directed to prior art provides a kind of medical dynamic torque tool with counting and self-destroying function, just there will be self-destruction, unlimitedly can not use, be beneficial to the medical security to patient when total access times of this medical dynamic torque tool exceed preset times.
In order to solve the problems of the technologies described above, the present invention adopts following technical scheme:
A kind of medical dynamic torque tool with counting and self-destroying function, include shell and handle cover, described handle cover and housing combination form a torsion main body, the inner chamber of torsion main body is provided with outer casing sleeve, screwdriver bit is had in the lower end releasable connection of outer casing sleeve, the inner chamber of described outer casing sleeve is provided with the clamping device for Quick-clamped screwdriver bit, the upper end of described outer casing sleeve is also provided with counting self-desttruction equipment, described counting self-desttruction equipment includes enumerator, enumerator end cap, enumerator end cap screw, connecting bolt and the first compression spring, screw terminal and the enumerator end cap of described enumerator end cap screw connect as one, enumerator end cap is installed on the top of enumerator together with enumerator end cap screw, actuation counter is run through in the upper end of described connecting bolt, and the upper end of connecting bolt is threaded with the screw section of enumerator end cap screw, the lower end of connecting bolt is connected with the top drive of clamping device, the upper surface of described first compression spring abuts the below of enumerator, and in the middle of connecting bolt, be provided with a meson, the first compression spring is located at the outside of connecting bolt by meson fixed cover, and the spring section between meson and enumerator is compressive state.
Wherein, described enumerator includes gear stand, the single-tooth gear of tape spool, driven gear and internal-gear circle, and the upper surface of described internal-gear circle is provided with Digital ID; Described gear stand is provided with central shaft hole, and the upper surface of gear stand is provided with C type flange, and single-tooth gear is installed in C type flange, and the mandrel of single-tooth gear inserts in central shaft hole, arranges the through hole passed for connecting bolt at the mandrel center of single-tooth gear; Described driven gear is arranged at outside the breach of C type flange, and described internal-gear circle is coaxially arranged at above gear stand, and the internal tooth of internal-gear circle engages with driven gear.
As preferably, the top of described internal-gear circle is provided with the lens be convenient to observe and rotated the number of turns, and described lens run through described counting end cap and handle cover.
Further, the inner chamber of described outer casing sleeve also includes the second compression spring, the 3rd compression spring and is tightened in the telescopic screw lid at outer casing sleeve top, described clamping device is installed between the second compression spring and the 3rd compression spring, and the lower surface of the second compression spring compresses the bottom of outer casing sleeve, the upper surface of the 3rd compression spring abuts the lower surface of telescopic screw lid; The downward protrusion of described gear stand is provided with polygon link, the center of telescopic screw lid is provided with the polygon slot suitable with polygon link, by the grafting corresponding to polygon slot of polygon link, enumerator is made to be connected to the telescopic screw side of covering.
Further, described clamping device includes driving gear set and pawl base, and described driving gear set includes cogging and lower gear of being oppositely arranged, and described pawl base is arranged at the below of lower gear; The described arranged outside cogged has clamping bar, and the internal chamber wall of described outer casing sleeve is provided with the slot suitable with clamping bar, cogs by clamping bar insertion slot, makes to cog and be fixed in outer casing sleeve and can not rotate; The described center cogged is provided with manhole, the upper end of described lower gear is provided with power transmission shaft, power transmission shaft passes described manhole, and the center of described power transmission shaft is provided with the grafting through hole matched with connecting bolt, and the lower end of described connecting bolt is inserted in grafting through hole.
As preferably, the bottom of described lower gear is set to ratchet ring, and described pawl base is sheathed in ratchet ring, and the ratchet on pawl base is meshed with the ratchet of ratchet ring; The lower end of described pawl base is set to the grafting stiff end of screwdriver bit.
As preferably, the lower end of described outer casing sleeve is provided with water repellent component, and described water repellent component comprises waterproof fixing piece, upper water-proof silica-gel circle and lower water-proof silica-gel circle, and waterproof fixing piece is installed between water-proof silica-gel circle and lower water-proof silica-gel circle; The imitative packing ring be out of shape is provided with between described upper water-proof silica-gel circle and the lower surface of outer casing sleeve.
Wherein, be provided with sealing ring between described enumerator end cap and outer casing sleeve, the top of outer casing sleeve is provided with the sealed groove for accommodating sealing ring, in described sealing ring embedding sealing groove.
Wherein, the outer surface of described handle cover covers and is provided with rubber soft layer, and described rubber soft layer surface is provided with many tread plates.
Beneficial effect of the present invention:
A kind of medical dynamic torque tool with counting and self-destroying function provided by the invention, in outer casing sleeve inside, counting self-desttruction equipment is set, when the number of times of enumerator labelling reaches preset maximum value, the upper end of connecting bolt will depart from from enumerator end cap screw, the first compression spring in compressive state orders about connecting bolt slamming down clamping device, causing the screwdriver bit when twisting torsion main body to be no longer subject to torsion, there is self-destruction in this medical dynamic torque tool inside; Present invention achieves medical dynamic torque tool only to use by limited number of time, ensure the medical safety of patient.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation with the medical dynamic torque tool of counting and self-destroying function of the present invention.
Fig. 2 is a kind of top view with the medical dynamic torque tool of counting and self-destroying function of the present invention.
Fig. 3 is the profile of A-A in Fig. 2.
Fig. 4 is a kind of explosive view with the medical dynamic torque tool of counting and self-destroying function of the present invention.
Fig. 5 is a kind of internal structure schematic diagram with the medical dynamic torque tool of counting and self-destroying function of the present invention.
Fig. 6 is the internal structure schematic diagram that Fig. 5 conceals after outer casing sleeve sum counter end cap.
Reference numeral in Fig. 1 to Fig. 6 comprises:
1-shell, 2-handle cover, 3-outer casing sleeve
4-tight screwdriver bit 5-clamping device 51-driving gear set
511-cog 512-lower gear, 513-clamping bar
514-power transmission shaft, 52-pawl base, 521-ratchet
522-grafting stiff end, 6-enumerator, 61-gear stand
611-C type flange, 612-polygon link, 62-single-tooth gear
621-mandrel, 63-driven gear, 64-internal-gear circle
7-enumerator end cap, 8-enumerator end cap screw, 81-screw terminal
82-screw section, 9-connecting bolt 10-the first compression spring
11-meson, 12-lens 13-the second compression spring
14-the three compression spring 15-telescopic screw lid 151-polygon slot
16
-water repellent component 161-waterproof fixing piece 162-upper water-proof silica-gel circle
163-lower water-proof silica-gel circle, 17-packing ring, 18-sealing ring
19-rubber soft layer, 20-tread plate.
Detailed description of the invention
For the ease of the understanding of those skilled in the art, below in conjunction with embodiment and accompanying drawing, the present invention is further illustrated, and the content that embodiment is mentioned not is limitation of the invention.See Fig. 1 to Fig. 6, below in conjunction with accompanying drawing, the present invention is described in detail.
A kind of medical dynamic torque tool with counting and self-destroying function provided by the present invention, include shell 1 and handle cover 2, described handle cover 1 combines formation torsion main body with shell 2, holding with a hand torsion main body and rotating, being convenient to taking and placing when using of the present invention, the inner chamber of described torsion main body is provided with outer casing sleeve 3, has screwdriver bit 4 in the lower end releasable connection of outer casing sleeve 3, can change the screwdriver bit of different model according to actual needs, the inner chamber of described outer casing sleeve 3 is provided with the clamping device 5 for Quick-clamped screwdriver bit 4, the upper end of described outer casing sleeve 3 is also provided with counting self-desttruction equipment, described counting self-desttruction equipment includes enumerator 6, enumerator end cap 7, enumerator end cap screw 8, connecting bolt 9 and the first compression spring 10, screw terminal 81 and the enumerator end cap 7 of described enumerator end cap screw 8 connect as one, enumerator end cap 7 is installed on the top of enumerator 6 together with enumerator end cap screw 8, actuation counter 6 is run through in the upper end of described connecting bolt 9, and the upper end of connecting bolt 9 is threaded with the screw section 82 of enumerator end cap screw 8, the lower end of connecting bolt 9 is connected with the top drive of clamping device 5, the upper surface of described first compression spring 10 abuts the below of enumerator 7, a meson 11 is provided with in the middle of connecting bolt 9, first compression spring 10 is located at the outside of connecting bolt 9 by meson 11 fixed cover, and the spring section between meson 11 and enumerator 6 is compressive state.
The present invention in use, holds with a hand torsion main body and does spinning movement, and while being had powerful stubborn power by the screwdriver bit 4 that clamping device 5 is clamped, the counting self-desttruction equipment being arranged on outer casing sleeve 3 upper end carries out record simultaneously and uses the number of turns.Concrete: when torsion main body does tighten the screws action, be subject to opposition at the connecting bolt 9 of outer casing sleeve 3, connecting bolt 9 drives enumerator 6 to rotate counting, and meanwhile, the upper end from coil to coil of connecting bolt 9 screws out the screw section 82 of enumerator end cap screw 8.When the number of times of enumerator 6 recording mark has reached preset maximum value, the upper end of connecting bolt 9 will depart from from enumerator end cap screw 8, the first compression spring 10 in compressive state orders about connecting bolt 9 slamming down clamping device 5, the screwdriver bit 4 when twisting torsion main body is caused no longer by torsion, to make medical dynamic torque tool inside that self-destruction occur; Present invention achieves medical dynamic torque tool only to use by limited number of time, ensure the medical safety of patient.
In the present embodiment, described enumerator 6 includes gear stand 61, the single-tooth gear 62 of tape spool, driven gear 63 and internal-gear circle 64, and the upper surface of described internal-gear circle 64 is provided with for recording the Digital ID rotating the number of turns, than being easier to direct vision; In addition, can arrange at the upper surface of internal-gear circle 64 and represent the color bar of usage degree, namely represent reach use maximum when reaching redness; Described gear stand 61 is provided with central shaft hole (not marking in the drawings), the upper surface of gear stand 61 is provided with C type flange 611, single-tooth gear 62 is installed in C type flange 611, the mandrel 621 of single-tooth gear 62 inserts in central shaft hole, the through hole (not marking in the drawings) passed for connecting bolt 9 is set at mandrel 621 center of single-tooth gear 62, the external shape fits of this through hole and connecting bolt 9; Described driven gear 63 is arranged at outside the breach of C type flange 611, and described internal-gear circle 64 is coaxially arranged at above gear stand 61, and the internal tooth of internal-gear circle 64 engages with driven gear 63.Counting process is as follows: connecting bolt 9 drives single-tooth gear 62 to rotate, single-tooth gear 62 rotates a circle, the monodentate of single-tooth gear 62 engages once with driven gear 63, driven gear 63 rotates a tooth position, then driven gear 63 drives internal-gear circle 64 to rotate a tooth position, record a numeral when internal-gear circle 64 rotates several tooth positions, such as a numeral is recorded in rotation 10 or 15 tooth positions.
As preferably, the top of described internal-gear circle 64 is provided with the lens 12 be convenient to observe and rotated the number of turns, and described lens 12 run through described counting end cap 7 and handle cover 2.Doctor can observe the behaviour in service of this dynamic torque tool by scioptics 12 before medical operating uses, and is convenient to change dynamic torque tool in time, avoids unexpected self-destruction in use occurs.
Further, the inner chamber of described outer casing sleeve 3 also includes the second compression spring 13, the 3rd compression spring 14 and is tightened in the telescopic screw lid 15 at outer casing sleeve 3 top, described clamping device 5 is installed between the second compression spring 13 and the 3rd compression spring 14, and the lower surface of the second compression spring 13 compresses the bottom of outer casing sleeve 3, the upper surface of the 3rd compression spring 14 abuts the lower surface of telescopic screw lid 15, described second compression spring 13 and the 3rd compression spring 14 all apply thrust to clamping device 5, which dictates that the rotatable acrotorque of screwdriver bit 4; The downward protrusion of described gear stand 61 is provided with polygon link 612, the center of telescopic screw lid 15 is provided with the polygon slot 151 suitable with polygon link 612, by polygon link 612 grafting corresponding to polygon slot 151, make enumerator 6 be connected to above telescopic screw lid 15, telescopic screw lid 15 pairs of enumerators 6 play support.
Further, described clamping device 5 includes driving gear set 51 and pawl base 52, and described driving gear set 51 includes 511 and the lower gear 512 of cogging be oppositely arranged, and described pawl base 52 is arranged at the below of lower gear 512; Described cog 511 arranged outside have clamping bar 513, the internal chamber wall of described outer casing sleeve 3 is provided with the slot (in the drawings do not mark) suitable with clamping bar 513, cog and 511 insert in slot by clamping bar 513, make to cog and 511 to be fixed in outer casing sleeve 3 and can not to rotate; Described cog 511 center be provided with manhole, the upper end of described lower gear 512 is provided with power transmission shaft 514, power transmission shaft 514 passes described manhole, the center of described power transmission shaft 514 is provided with the grafting through hole matched with connecting bolt 9, and the lower end of described connecting bolt 9 is inserted in grafting through hole.As preferably, the bottom of described lower gear 512 is set to ratchet ring, and described pawl base 52 is sheathed in ratchet ring, and the ratchet 521 on pawl base 52 is meshed with the ratchet of ratchet ring; The lower end of described pawl base 521 is set to the grafting stiff end 522 of screwdriver bit 4.
In use, clockwise turn torsion main body, cog and 511 to rotate together with outer casing sleeve 3, the 511 driving lower gears 512 that then cog rotate.The ratchet ring of lower gear 512 drives pawl base 52 again, and pawl base 52 drives screwdriver bit 4.When the pressure in torsion main body increases to certain value gradually, make to cog and 511 be subject to the also corresponding increase of axial power, when it extrudes the second compression spring 13 and the second compression spring 14, when reaching the spring force of setting, will be cogged the flank of tooth of 511 and the trip action of lower gear 512 flank of tooth, screwdriver bit 4 no longer rotates, thus ensure that the moment of torsion output of medical dynamic torque tool can not be excessive.
When the upper end of connecting bolt 9 will depart from from enumerator end cap screw 8, the first compression spring 10 in compressive state orders about connecting bolt 9 slamming down clamping device 5; Concrete: under the effect of the first compression spring 10, connecting bolt 9 makes pawl base 52 move down, pawl base 52 no longer intermeshes with the ratchet ring of lower gear 512, there is self-destruction thoroughly in whole medical dynamic torque tool, even if having, torsion is applied to torsion main body, also do not have torsion to be delivered on screwdriver bit 4.
As preferably, the lower end of described outer casing sleeve 3 is provided with water repellent component 16, described water repellent component 16 comprises waterproof fixing piece 161, upper water-proof silica-gel circle 162 and lower water-proof silica-gel circle 163, and waterproof fixing piece 161 is installed between water-proof silica-gel circle 162 and lower water-proof silica-gel circle 163; The imitative packing ring 17 be out of shape is provided with between described upper water-proof silica-gel circle 162 and the lower surface of outer casing sleeve 3.Waterproof fixing piece 161, upper water-proof silica-gel circle 162 and lower water-proof silica-gel circle 163 are stepped construction, before combination is installed, upper water-proof silica-gel circle 162 and lower water-proof silica-gel circle 163 are fixed on the both sides of waterproof fixing piece 161, are so just provided with good waterproof effect.
In the present embodiment, between described enumerator end cap 7 and outer casing sleeve 3, be provided with sealing ring 18, be provided with the sealed groove for accommodating sealing ring 18 at the top of outer casing sleeve 3, in described sealing ring 18 embedding sealing groove.Sealing ring 18 is set at the top of outer casing sleeve 3, realizes sealing the two ends up and down of outer casing sleeve 3, ensure that the inside of this medical dynamic torque tool easily can not enter water.
Wherein, the outer surface of described handle cover 2 covers and is provided with rubber soft layer 19, and described rubber soft layer 19 surface is provided with many tread plates 20.The frictional force between hands can be strengthened by rubber soft layer 19 and tread plate 20, can not skating in use procedure.
Above content is only preferred embodiment of the present invention, and for those of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, this description should not be construed as limitation of the present invention.
Claims (9)
1. one kind has the medical dynamic torque tool of counting and self-destroying function, include shell and handle cover, described handle cover and housing combination form a torsion main body, the inner chamber of torsion main body is provided with outer casing sleeve, screwdriver bit is had in the lower end releasable connection of outer casing sleeve, the inner chamber of described outer casing sleeve is provided with the clamping device for Quick-clamped screwdriver bit, it is characterized in that: the upper end of described outer casing sleeve is also provided with counting self-desttruction equipment, described counting self-desttruction equipment includes enumerator, enumerator end cap, enumerator end cap screw, connecting bolt and the first compression spring, screw terminal and the enumerator end cap of described enumerator end cap screw connect as one, enumerator end cap is installed on the top of enumerator together with enumerator end cap screw, actuation counter is run through in the upper end of described connecting bolt, and the upper end of connecting bolt is threaded with the screw section of enumerator end cap screw, the lower end of connecting bolt is connected with the top drive of clamping device, the upper surface of described first compression spring abuts the below of enumerator, and in the middle of connecting bolt, be provided with a meson, the first compression spring is located at the outside of connecting bolt by meson fixed cover, and the spring section between meson and enumerator is compressive state.
2. a kind of medical dynamic torque tool with counting and self-destroying function according to claim 1, it is characterized in that: described enumerator includes gear stand, the single-tooth gear of tape spool, driven gear and internal-gear circle, and the upper surface of described internal-gear circle is provided with Digital ID; Described gear stand is provided with central shaft hole, and the upper surface of gear stand is provided with C type flange, and single-tooth gear is installed in C type flange, and the mandrel of single-tooth gear inserts in central shaft hole, arranges the through hole passed for connecting bolt at the mandrel center of single-tooth gear; Described driven gear is arranged at outside the breach of C type flange, and described internal-gear circle is coaxially arranged at above gear stand, and the internal tooth of internal-gear circle engages with driven gear.
3. a kind of medical dynamic torque tool with counting and self-destroying function according to claim 2, it is characterized in that: the top of described internal-gear circle is provided with the lens be convenient to observe and rotated the number of turns, described lens run through described counting end cap and handle cover.
4. a kind of medical dynamic torque tool with counting and self-destroying function according to claim 2, it is characterized in that: the inner chamber of described outer casing sleeve also includes the second compression spring, the 3rd compression spring and is tightened in the telescopic screw lid at outer casing sleeve top, described clamping device is installed between the second compression spring and the 3rd compression spring, and the lower surface of the second compression spring compresses the bottom of outer casing sleeve, the upper surface of the 3rd compression spring abuts the lower surface of telescopic screw lid; The downward protrusion of described gear stand is provided with polygon link, the center of telescopic screw lid is provided with the polygon slot suitable with polygon link, by the grafting corresponding to polygon slot of polygon link, enumerator is made to be connected to the telescopic screw side of covering.
5. a kind of medical dynamic torque tool with counting and self-destroying function according to claim 4, it is characterized in that: described clamping device includes driving gear set and pawl base, described driving gear set includes cogging and lower gear of being oppositely arranged, and described pawl base is arranged at the below of lower gear; The described arranged outside cogged has clamping bar, and the internal chamber wall of described outer casing sleeve is provided with the slot suitable with clamping bar, cogs by clamping bar insertion slot, makes to cog and be fixed in outer casing sleeve and can not rotate; The described center cogged is provided with manhole, the upper end of described lower gear is provided with power transmission shaft, power transmission shaft passes described manhole, and the center of described power transmission shaft is provided with the grafting through hole matched with connecting bolt, and the lower end of described connecting bolt is inserted in grafting through hole.
6. a kind of medical dynamic torque tool with counting and self-destroying function according to claim 5, it is characterized in that: the bottom of described lower gear is set to ratchet ring, described pawl base is sheathed in ratchet ring, and the ratchet on pawl base is meshed with the ratchet of ratchet ring; The lower end of described pawl base is set to the grafting stiff end of screwdriver bit.
7. a kind of medical dynamic torque tool with counting and self-destroying function according to any one of claim 1 ~ 6, it is characterized in that: the lower end of described outer casing sleeve is provided with water repellent component, described water repellent component comprises waterproof fixing piece, upper water-proof silica-gel circle and lower water-proof silica-gel circle, and waterproof fixing piece is installed between water-proof silica-gel circle and lower water-proof silica-gel circle; The imitative packing ring be out of shape is provided with between described upper water-proof silica-gel circle and the lower surface of outer casing sleeve.
8. a kind of medical dynamic torque tool with counting and self-destroying function according to claim 1, it is characterized in that: between described enumerator end cap and outer casing sleeve, be provided with sealing ring, the top of outer casing sleeve is provided with the sealed groove for accommodating sealing ring, in described sealing ring embedding sealing groove.
9. a kind of medical dynamic torque tool with counting and self-destroying function according to claim 1, is characterized in that: the outer surface of described handle cover covers and is provided with rubber soft layer, and described rubber soft layer surface is provided with many tread plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410405410.4A CN104161583B (en) | 2014-08-18 | 2014-08-18 | A kind of medical dynamic torque tool with counting and self-destroying function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410405410.4A CN104161583B (en) | 2014-08-18 | 2014-08-18 | A kind of medical dynamic torque tool with counting and self-destroying function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104161583A CN104161583A (en) | 2014-11-26 |
| CN104161583B true CN104161583B (en) | 2016-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410405410.4A Active CN104161583B (en) | 2014-08-18 | 2014-08-18 | A kind of medical dynamic torque tool with counting and self-destroying function |
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| CN (1) | CN104161583B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106175907B (en) * | 2016-08-31 | 2020-10-20 | 天津正天医疗器械有限公司 | Counting type torsion handle |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US6010508A (en) * | 1996-10-25 | 2000-01-04 | Bradley; Gary W. | Automatic impact device |
| DE20001730U1 (en) * | 2000-02-01 | 2000-05-04 | Wille Gmbh & Co | Tool or testing device for a tool |
| DE10341697B3 (en) * | 2003-09-10 | 2004-10-07 | Felo-Werkzeugfabrik Holland-Letz Gmbh | Screwdriver used as a hand screwdriver comprises couplings each consisting of a locking bushing, a catch bushing and a pressure spring with a pre-tension between the couplings on a toothed casing |
| US7272998B1 (en) * | 2004-06-16 | 2007-09-25 | Gauthier Michael T | Torque-limiting mechanism |
| CN203988340U (en) * | 2014-08-18 | 2014-12-10 | 东莞乐域光电科技有限公司 | A kind of medical dynamic torque tool with counting and self-destroying function |
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