CN207627391U - It is a kind of to twist tight device - Google Patents

Abstract

Tight device is twisted the utility model discloses a kind of, for the field of medical instrument technology, including pedestal and handle, axis hole is equipped in the pedestal, the handle has is inserted into the twirl mandrel that can be rotated in axis hole and in axis hole by the top of the axis hole, the twirl mandrel is equipped with separation ridge in an axial direction, it twists mandrel and forms wire slot in the both sides for separating ridge, the pedestal forms observation window in the lower end of axis hole by opening up lateral through hole, pedestal forms pressure head in the lower section of observation window, it is opened up immediately below axis hole on the pressure head and comes together via, on the handle strainer is equipped in the top for twisting mandrel, saddle is equipped in the axis hole, the twirl mandrel is equipped with lower pressure ring, the lubrication assembly for rolling cooperation or being slidably matched is equipped between the lower pressure ring and saddle.The utility model increases the lubrication assembly with self-lubricating property between twirl mandrel and the binding face of handle, and to reduce the grinding resistance of main shaft and pedestal, the operating process for keeping twirl tight is more effortless.

Description

It is a kind of to twist tight device

Technical field

The utility model is used for the field of medical instrument technology, and tight device is twisted more particularly to a kind of.

Background technology

The conventional Thoracotomy in Management operation of department of cardiac surgery at present is typically all to carry out chest cardiovascular surgery after taking longitudinal breastbone of riving, Chest cardiovascular surgery must carry out the fixation of breastbone both sides fracture end after being disposed, and fix the most frequently used of the breastbone broken ends of fractured bone at present Method is exactly that wire binding is taken to close thoracic cavity, to restore the integrality of the wall of the chest.

The surgical procedure that ordinary steel wire closes chest is will to pass through steel wire through notch both sides breastbone valve or through intercostal around breastbone surface Completion is tightened after both ends steel wire is tightened afterwards to fix.In the prior art, when being tied up for steel wire or other wires wrapping breastbone All it is to be tightened using vice, overload easily occurs and twist into two parts pass thoracic portion steel wire, and since steel wire elasticity differs, it may appear that High stressed wire, be susceptible to steel wire cutting breastbone or the risk snapped.

In order to solve the above-mentioned technical problem, occur dedicated steel wire device for screwing up, such as application number in the prior art 201510884764.6, but tight device is twisted due to original steel wire and is made for metal material, pedestal exists with main shaft when twisting tight steel wire Twisting tight steel wire, as steel wire is twisted, tight degree is more and more tighter in the process, and the pressure-bearing of pedestal and main shaft contacts the surfaces of revolution due to squeezing mutually Resistance is increasing.

Utility model content

The utility model provides resistance during a kind of avoidable use the increasing tight device of twirl.

Technical solution adopted by the utility model to solve its technical problems is：It is a kind of to twist tight device, including pedestal and hand Handle, the pedestal is interior to be equipped with axis hole, and the handle, which has, to be inserted into axis hole and can be rotated in axis hole by the top of the axis hole Twirl mandrel, the mandrel of twisting is equipped with separation ridge in an axial direction, twists mandrel and form wire slot, the bottom in the both sides for separating ridge Seat forms observation window in the lower end of axis hole by opening up lateral through hole, and pedestal forms pressure head in the lower section of observation window, described It is opened up immediately below axis hole on pressure head and comes together via, strainer, the axis are equipped in the top for twisting mandrel on the handle Saddle is equipped in hole, the twirl mandrel is equipped with lower pressure ring, and rolling cooperation is equipped between the lower pressure ring and saddle or sliding is matched The lubrication assembly of conjunction.

It is further used as the improvement of technical solutions of the utility model, the lubrication assembly includes being located at the top of the saddle Lower slide plate and the upper slide plate for being located at the lower pressure ring bottom.

It is further used as the improvement of technical solutions of the utility model, the lower pressure ring bottom is positioned equipped with several axial tooths Slot, the upper slide plate top are equipped with the axially position tooth in embedded each axial tooth locating slot.

It is further used as the improvement of technical solutions of the utility model, is equipped with groove at the top of the saddle, the lower slide plate is embedding Enter in the groove, the cell wall of the groove is equipped with several radial teeth locating slots, and the edge of the lower slide plate is equipped with insertion respectively Radial positioning tooth in radial teeth locating slot.

It is further used as the improvement of technical solutions of the utility model, ratchet storehouse, the strainer are equipped in the handle Including being horizontally through the cross bar in the ratchet storehouse, setting ratchet on the cross bar and one end is stretched into ratchet storehouse and can be blocked The slide bar of the ratchet is equipped with through-hole on the cross bar in the both sides of ratchet, and the cross bar is stretching out one end on the outside of handle Equipped with knob.

It is further used as the improvement of technical solutions of the utility model, the handle is equipped with open top in the top in ratchet storehouse Slide bar chamber, the slide bar intracavitary is equipped with slider block, slide bar guide hole is equipped in slider block, and the slide bar is inserted into the slide bar and leads In hole, the lower end of slide bar is equipped with boss, is existed on the outside of slide bar by extending to the top of the ratchet, the slide bar at the top of ratchet storehouse It is set with the compressed spring that slide bar can be popped up downwards between boss and slider block, the upper end of the slide bar is pierced by slider block, and The top of slider block connects tongue piece.

It is further used as the improvement of technical solutions of the utility model, the pedestal opens up upper leading groove on front side of axis hole, Pressure head comes together in steel wire opens up the lower leading groove opposite with upper leading groove on front side of via, the bottom end face of pressure head is equipped with from two Come together the pressuring line groove in via in side.

It is further used as the improvement of technical solutions of the utility model, the axis hole is ladder axis hole, the ladder axis hole packet The path axis hole section of the major diameter axis hole section and bottom at top is included, the twirl mandrel is multi-diameter shaft, and the multi-diameter shaft includes being inserted into Major diameter shaft part in major diameter axis hole section and the path shaft part being inserted into path axis hole section, major diameter shaft part is equipped with upper press ring under Pressure ring, the top of the pedestal is equipped in the both sides of the upper leading groove will twist the left pressure ring and right pressure that mandrel is pressed in axis hole Ring.

It is further used as the improvement of technical solutions of the utility model, the pedestal includes the major diameter section of corresponding major diameter axis hole section With the path section of corresponding path axis hole section, the path section is equipped with the preceding ridge swelled outward, path section at the edge of upper leading groove Left and right side also have the left ridge of pressure head and right ridge transitted to by major diameter section.

It is further used as the improvement of technical solutions of the utility model, the major diameter section and handle are cylindrical, major diameter section It is equipped with anti-skid chequer on the outer wall of handle.

The beneficial effects of the utility model：The utility model is equipped with saddle in the axis hole, and the twirl mandrel is equipped with Lower pressure ring is equipped with the lubrication assembly for rolling cooperation or being slidably matched between the lower pressure ring and saddle.Therefore mandrel and hand are being twisted The lubrication assembly with self-lubricating property is increased between the binding face of handle, to reduce the grinding resistance of main shaft and pedestal, makes twirl Tight operating process is more effortless.

Description of the drawings

The utility model is described in further detail below in conjunction with the accompanying drawings：

Fig. 1 is the utility model axonometric drawing；

Fig. 2 is the utility model front view；

Fig. 3 is sectional view at A-A in Fig. 2；

Fig. 4 is the utility model handle arrangement schematic diagram；

Fig. 5 is slide plate schematic diagram on the utility model；

Fig. 6 is the utility model downslide piece axonometric drawing；

Fig. 7 is slide plate vertical view under the utility model.

Specific implementation mode

Referring to Figure 1 to Figure 7, that show the concrete structures of the preferred embodiment of the utility model.It below will specifically The design feature of bright each component of the utility model, and when if there is being described to direction (upper and lower, left and right, before and after), it is with Fig. 1 Shown in structure be with reference to describing, but the actual use direction of the utility model is not limited thereto.

It is illustrated for twisting tight steel wire below, referring to Fig. 1, Fig. 2, the utility model provides a kind of tight device of twirl, It can be used for closing the steel wire of Intersternal incision and twists tightly, including pedestal 1 and handle 2, and axis hole 11, the hand are equipped in the pedestal 1 Handle 2 has is inserted into the twirl mandrel 21 that can be rotated in axis hole 11 and in axis hole 11, the twirl mandrel by the top of the axis hole 11 21 are equipped with separation ridge 22 in an axial direction, twist mandrel 21 and form wire slot 23, symmetrical point of wire slot 23 in the both sides for separating ridge 22 Cloth forms sight in the lower end of axis hole 11 in the left and right sides for twisting 21 axis of mandrel, the pedestal 1 by opening up lateral through hole Window 12 is examined, pedestal forms pressure head 13 in the lower section of observation window 12, opens up and came together in the underface of axis hole 11 on the pressure head 13 Hole 14 is equipped with strainer on the handle 2 in the top for twisting mandrel 21, is equipped with saddle 110 in the axis hole 11, it is described twist it is tight Axis 21 is equipped with lower pressure ring 24, and the lubrication assembly for rolling cooperation or being slidably matched is equipped between the lower pressure ring 24 and saddle 110. The utility model is equipped with saddle 110 in the axis hole 11, and the twirl mandrel 21 is equipped with lower pressure ring 24,24 He of lower pressure ring The lubrication assembly for rolling cooperation or being slidably matched is equipped between saddle 110.Therefore it is twisting between mandrel 21 and the binding face of handle 2 The lubrication assembly with self-lubricating property is increased, to reduce the grinding resistance of main shaft and pedestal, the operating process for keeping twirl tight is more It is laborsaving.

Referring to Fig. 3, sliding or rolling friction structure may be used in lubrication assembly, as the preferred embodiment party of the utility model Formula, in order to ensure that the effect of cleaning, the lubrication assembly include being located at the lower slide plate 7 at 110 top of the saddle and being located at described Therefore the upper slide plate 8 of lower 24 bottom of pressure ring increases the upper and lower slide plate with self-lubricating property between two metal coverings, To reduce the grinding resistance for twisting mandrel 21 and pedestal 1, keep the operating process of the tight steel wire of twirl more effortless.

Referring to Fig. 4, Fig. 5, in order to enable upper slide plate 8 and lower 24 secure fit of pressure ring, avoid being mutually disengaged during twisting tightly, 24 bottom of lower pressure ring is equipped with several axial tooth locating slots 25, and 8 top of the upper slide plate is equipped with embedded each axial tooth locating slot Axially position tooth 81 in 25.

Referring to Fig. 6, Fig. 7, in order to enable lower slide plate 7 and 110 secure fit of saddle, avoid being mutually disengaged during twisting tightly, 110 top of the saddle is equipped with groove, and the lower slide plate 7 is embedded in the groove, if the cell wall of the groove is equipped with trunk diameter To tooth locating slot, the edge of the lower slide plate 7 is equipped with the radial positioning tooth 71 in embedded each radial teeth locating slot.

Be equipped with ratchet storehouse 31 in the handle 2, the strainer include the cross bar 32 for being horizontally through the ratchet storehouse 31, The slide bar 34 of the ratchet 33 is stretched into ratchet storehouse 31 and can be blocked in the ratchet 33 being located on the cross bar 32 and one end, described On cross bar 32 through-hole 35 is equipped in the both sides of ratchet 33.The cross bar 34 is equipped with knob 36 in the one end for stretching out 2 outside of handle.

In use, the both ends of steel wire are sequentially passed through steel wire and come together via 14, observation window around after breastbone steel wire 12, the wire slot 23 for separating ridge 22 both sides, then connect with strainer, by one insertion through-hole 35 of steel wire and turns when connection Knob 36 curls up cross bar 32 one week, and steel wire other end is inserted into another through-hole 35 of cross bar 32 and curls up cross bar 1-2 again Circle fixed steel wire end, 45 degree of overturning angles twist tight device and turning knob 36 makes steel wire continue around on cross bar 32, in tightening steel wire Confirm simultaneously two strands of steel wires be respectively in separate ridge 22 both sides after adjustment strainer so that steel wire is tightened, while rotating base 1 and leading to The two strands of steel wires in left and right are pressed on breastbone by the pressure head 13 for crossing 1 lower end of pedestal, turn knob 36 again until tightening steel wire completely makes It is vertical with breastbone to twist tight device axis；It is motionless to hold pedestal 1 on the other hand, the other hand one-directional rotation handle 2 makes steel wire mutually curl up in the same direction, It twists tightly, is twisted into two parts at observation window 12 until steel wire twists tight part.

Wherein, the handle 2 is equipped with the slide bar chamber 41 of open top in the top in ratchet storehouse 31, is set in the slide bar chamber 41 There is slider block 42, is equipped with slide bar guide hole 43 in slider block 42, the slide bar 34 is inserted into the slide bar guide hole 43, slide bar 34 Lower end is extended to the top of the ratchet 33 by the top in ratchet storehouse 31, and the slide bar 34 is equipped with boss, and 34 outside of slide bar is convex The compressed spring that slide bar 34 can be popped up downwards is set between platform and slider block 42, the upper end of the slide bar 34 is pierced by slider block 42, and connect tongue piece 45 in the top of slider block 42.When tightening steel wire, knob 36 is turned, cross bar 32 drives ratchet 33 to synchronize Rotation, for slide bar 34 under the action of compressed spring, the between cog for being caught in ratchet 33 avoids cross bar 32 from inverting.Tight behaviour is twisted when completing steel wire After work, pinching the rotation of tongue piece 45 with hand makes it and is lifted up slide bar 34, reversely turns knob 36, can extract out and be wrapped in outward Steel wire on cross bar 32.

The pedestal 1 opens up upper leading groove 15 in the front side of axis hole 11, and the front side that pressure head 13 comes together via 14 in steel wire is opened If the lower leading groove 16 opposite with upper leading groove 15, the setting of upper leading groove 15 and lower leading groove 16 facilitates steel wire to penetrate steel wire remittance Hold together via 14 and axis hole 11, while the position convenient for observation steel wire on twisting mandrel 21.The bottom end face of pressure head 13 is equipped with can Guiding steel wire imports steel wire from both sides and comes together the pressuring line groove 17 in via 14, meanwhile, pressuring line groove 17 can be incited somebody to action when tightening knob 36 The two strands of steel wires in left and right are pressed on breastbone.

The axis hole 11 is ladder axis hole, and the ladder axis hole includes the path axis hole of the major diameter axis hole section and bottom at top Section, the twirl mandrel 21 are multi-diameter shaft, and the multi-diameter shaft includes the major diameter shaft part being inserted into major diameter axis hole section and is inserted into small Path shaft part in journal axle hole section, major diameter shaft part are equipped with upper press ring 26 and lower pressure ring 24, and the top of the pedestal is on described The both sides of leading groove, which are equipped with, will twist the left pressure ring 5 and right pressure ring 6 that mandrel is pressed in axis hole.The pedestal includes corresponding big journal axle The path section of the major diameter section of hole section and corresponding path axis hole section, the major diameter section and handle are cylindrical, major diameter section and handle 2 Outer wall on be equipped with anti-skid chequer.The path section is equipped with the preceding ridge 18 that swells outward at the edge of upper leading groove 15, before both sides Ridge 18 avoids the steel wire being located in upper leading groove 15 abjection and prevents the gloves of operator when operation from being rolled up along leading groove gap Enter to twist the gap between mandrel and path section axis hole and damage operator, the left and right side of path section also has by major diameter section transition To the left ridge 19 and right ridge 10 of pressure head 13, left ridge 19 and right ridge 10 improve the integral strength of major diameter section and path section.

Certainly, the invention is not limited to the above embodiment, and those skilled in the art are without prejudice to originally Equivalent variations or replacement can be also made under the premise of utility model spirit, these equivalent modifications or replacement are all contained in the application In claim limited range.

Claims (10)

1. a kind of twisting tight device, including pedestal and handle, axis hole is equipped in the pedestal, the handle has by the axis hole The twirl mandrel that can be rotated in axis hole and in axis hole is inserted on top, and the mandrel of twisting twists mandrel equipped with separation ridge in an axial direction Wire slot is formed in the both sides for separating ridge, the pedestal forms observation window in the lower end of axis hole by opening up lateral through hole, Pedestal forms pressure head in the lower section of observation window, is opened up immediately below axis hole on the pressure head and comes together via, on the handle The top for twisting mandrel is equipped with strainer, it is characterised in that：Saddle is equipped in the axis hole, the twirl mandrel, which is equipped with, to be pushed Ring is equipped with the lubrication assembly for rolling cooperation or being slidably matched between the lower pressure ring and saddle.

2. according to claim 1 twist tight device, it is characterised in that：The lubrication assembly includes being located at the top of the saddle Lower slide plate and be located at the upper slide plate of the lower pressure ring bottom.

3. according to claim 2 twist tight device, it is characterised in that：The lower pressure ring bottom is positioned equipped with several axial tooths Slot, the upper slide plate top are equipped with the axially position tooth in embedded each axial tooth locating slot.

4. according to claim 2 twist tight device, it is characterised in that：Groove, the lower slide plate are equipped at the top of the saddle In the embedded groove, the cell wall of the groove is equipped with several radial teeth locating slots, and the edge of the lower slide plate is equipped with insertion Radial positioning tooth in each radial teeth locating slot.

5. according to claim 1 twist tight device, it is characterised in that：Ratchet storehouse, the tensioning device are equipped in the handle Structure includes the cross bar for being horizontally through the ratchet storehouse, set ratchet on the cross bar and one end is stretched into ratchet storehouse and can be blocked The slide bar of ratchet is stated in residence, is equipped with through-hole in the both sides of ratchet on the cross bar, the cross bar is stretching out one on the outside of handle End is equipped with knob.

6. according to claim 5 twist tight device, it is characterised in that：The handle is spacious equipped with top in the top in ratchet storehouse The slide bar chamber of mouth, the slide bar intracavitary are equipped with slider block, are equipped with slide bar guide hole in slider block, the slide bar is inserted into the slide bar In guide hole, by extending to the top of the ratchet at the top of ratchet storehouse, the slide bar is equipped with boss for the lower end of slide bar, on the outside of slide bar The compressed spring that slide bar can be popped up downwards is set between boss and slider block, the upper end of the slide bar is pierced by slider block, and Tongue piece is connected in the top of slider block.

7. according to claim 1 twist tight device, it is characterised in that：The pedestal opens up on front side of axis hole enters line Slot, pressure head comes together in steel wire opens up the lower leading groove opposite with upper leading groove on front side of via, the bottom end face of pressure head is equipped with Come together the pressuring line groove in via from both sides.

8. according to claim 7 twist tight device, it is characterised in that：The axis hole is ladder axis hole, the ladder axis hole The path axis hole section of major diameter axis hole section and bottom including top, the twirl mandrel are multi-diameter shaft, and the multi-diameter shaft includes inserting Major diameter shaft part in major diameter axis hole section and the path shaft part being inserted into path axis hole section, major diameter shaft part be equipped with upper press ring and Lower pressure ring, the top of the pedestal are equipped with left pressure ring and the right side that will twist mandrel and be pressed in axis hole in the both sides of the upper leading groove Pressure ring.

9. according to claim 8 twist tight device, it is characterised in that：The pedestal includes the major diameter of corresponding major diameter axis hole section The path section of section and corresponding path axis hole section, the path section are equipped with the preceding ridge swelled outward, path at the edge of upper leading groove The left and right side of section also has transits to the left ridge of pressure head and right ridge by major diameter section.

10. according to claim 9 twist tight device, it is characterised in that：The major diameter section and handle are cylindrical, major diameter It is equipped with anti-skid chequer on the outer wall of section and handle.