CN214857328U - Novel skull traction bow - Google Patents

Abstract

The utility model discloses a novel skull traction bow belongs to neurosurgery apparatus technical field. The end parts of the left and right two clamp plates are hinged through a hinge shaft, the hinge shaft is connected with a hanging ring, a rough adjusting mechanism for realizing quick distance adjustment is arranged between the two clamp plates, the tail ends of the left and right two clamp plates are respectively provided with a clamp tip device, the clamp tip device is composed of a T-shaped plate, a clamping jackscrew and a supporting jackscrew, the end parts of the clamp plates are respectively hinged with the T-shaped plate, when a longitudinal plate of the T-shaped plate rotates to a horizontal state towards the center of the two sharp plates by taking the hinge shaft as an axis, the end parts of the clamping jackscrew and the supporting jackscrew horizontally face towards the inner side, the clamping jackscrew at the moment is positioned below the longitudinal plate of the T-shaped plate, the supporting jackscrew is positioned above the longitudinal plate of the T-shaped plate, the end part of the clamping jackscrew is a sharp cone, the tail end is provided with an outer knurling knob, the end part of the supporting jackscrew is a sphere cone, and the tail end is fixedly provided with an outer knurling knob. The supporting jackscrew is screwed, so that not only can the clamping force for clamping the jackscrew be controlled, but also the supporting effect can be achieved, and the clamping jackscrew is prevented from being separated due to looseness.

Description

Novel skull traction bow

Technical Field

The utility model relates to a novel skull traction bow belongs to neurosurgery apparatus technical field.

Background

Unstable cervical vertebra injury is a common disease, after injury, symptoms such as quadriplegia, urinary retention, intercostal muscle paralysis, respiratory weakness and the like mostly occur, and craniotomy is needed to stabilize the disease. The instrument that commonly uses is skull traction bow, and current skull traction bow is not convenient for adjust, also is not convenient for accomodate and deposit after using, can appear not hard up phenomenon moreover in traction process, in order to prevent to unhook, at every period, medical personnel must adjust the adjusting bolt of pincers body tip. If not found in time, the head tissue of the affected limb is easy to be scratched due to the slippage. The clamping force is too large, and the clamp point can penetrate through the inner skull plate, so that the possibility of acute epidural hematoma of a patient is caused.

SUMMERY OF THE UTILITY MODEL

In order to solve the deficiencies existing in the prior art, the utility model provides a novel skull traction bow, simple structure, convenient regulation, but coarse adjustment and fine setting under the condition of tractive force sudden change, can not the slippage, protect and suffer from limb head tissue, reduce the frequency of medical personnel's debugging, prolong the debugging cycle, reduce medical personnel's intensity of labour to be convenient for fold and accomodate, when later stage disinfection envelope was deposited, save shared space.

The utility model provides a technical scheme that its technical problem adopted is: a novel skull traction bow comprises a left splint, a right splint, a hanging ring, a coarse adjustment mechanism, a clamp tip device, wherein the left splint and the right splint are quarter circle body plates, the end parts of the left splint and the right splint are hinged through a hinge shaft, one end of the hanging ring is opened, the opening part is fixedly connected with the upper end and the lower end of the hinge shaft, the coarse adjustment mechanism is arranged between the left splint and the right splint, the tail ends of the left splint and the right splint are respectively provided with the clamp tip device, the distance between the two clamp tip devices is adjusted through the coarse adjustment mechanism, the skull of an affected limb is clamped and dragged, wherein the clamp tip device comprises a T-shaped plate, a clamping jackscrew and a supporting jackscrew, the end parts of the left splint and the right splint are respectively hinged with a T-shaped plate, the central longitudinal plate of the T-shaped plate is hinged with the end parts of the splint, the transverse plate is symmetrical along the axis center of the longitudinal plate, the end surface of the transverse plate is provided with the clamping jackscrew and the supporting jackscrew which are screwed in threads, when the longitudinal plate of the T-shaped plate rotates to the center of the two sharp plates to a horizontal state by taking the hinge shaft as the axis, the tip level of pressing from both sides tight jackscrew and supporting the jackscrew is inboard towards, and the tight jackscrew of this moment is located the vertical board below of T template, supports the vertical board top that the jackscrew is located the T template, the tight jackscrew tip of clamp be sharp-pointed cone, the outer knurling knob of its tail end fixedly connected with, support jackscrew tip be the spheroid cone, the outer knurling knob of its tail end fixedly connected with. When the splint is clamped tightly, the forceps tip device props the skull of the affected limb, the traditional skull traction bow only has the clamping jackscrew to pierce the skull for clamping, the supporting jackscrew forming a link mechanism with the splint is added, the clamping force of the clamping jackscrew can be controlled by screwing the supporting jackscrew, the supporting function can also be played, the clamping jackscrew is prevented from being released due to loosening, when the clamping jackscrew is loosened due to the drunkenness of the skull position, the T-shaped plate swings downwards as an axis along with a hinge shaft under the action of traction force, at the moment, the supporting jackscrew can prop against the skull, the supporting force is prevented from being released, under the action of the traction force, the supporting force is increased, the clamping is further realized through the support jackscrew in an auxiliary way, the slipping is prevented, and when the traction force is suddenly increased, the supporting jackscrew can swing under the trace of the T-shaped plate, the jacking force is increased, and the increase of the jacking force of the clamping jackscrew is avoided, and the end part of the supporting jackscrew is a sphere, so that the injured limb cannot be stabbed, the end part of the clamping jackscrew is prevented from penetrating through the inner plate of the skull, and the acute epidural hematoma of a patient is avoided.

Furthermore, the coarse adjustment mechanism comprises an upper L-shaped plate, a lower L-shaped plate, a screw rod, a convex pattern knob and gear teeth, wherein the upper part and the lower part of the hinged end of the left clamping plate are fixedly connected with the upper L-shaped plate and the lower L-shaped plate, the bent plates of the upper L-shaped plate and the lower L-shaped plate face towards the right side, the screw rod capable of rotating is inserted between the upper L-shaped plate and the lower L-shaped plate, the gear teeth meshed with the screw rod teeth are fixedly connected with the hinged end of the right clamping plate, the screw rod below the upper L-shaped plate is fixedly connected with an anti-falling convex step, the screw rod above the upper L-shaped plate is fixedly connected with a square head, the square head is sleeved with the convex pattern knob which is fixedly matched with the convex pattern knob, the top of the convex pattern knob is screwed into the screw rod to fix the convex pattern knob, the screw rod drives the gear teeth meshed with the screw rod through the convex pattern knob to enable the right clamping plate to swing, thereby controlling the distance between the two clamping plates and realizing coarse adjustment, the driving radius is the distance from the tooth wall of the tooth to the center of the hinged shaft, and the swing arm is whole right splint, and the gear tooth diameter is shorter more, and swing efficiency is higher, and the connected mode of screw rod and gear tooth, can effectually play the auto-lock effect to it is less to revolve wrong dynamics, and convenient quick adjustment revolves when revolving to the contact of two pincers point devices, and whole device is folding to minimum volume, and shared space is obviously less than the bow type traction frame of integral type, deposits behind the disinfection envelope of being more convenient for.

Further, the screw rod can be replaced by a worm, and the gear teeth can be replaced by worm gear teeth.

The utility model has the advantages that: the problem of current skull traction bow adjust frequently and easy slippage in the use is solved, a novel skull traction bow is provided, moreover, the steam generator is simple in structure, convenient regulation is realized, the affected limb skull is clamped fast through coarse adjustment, through two fine settings, accurate control presss from both sides tight dynamics, under the condition of traction force sudden change, the trace swing takes place for the T template, support jackscrew clamp force grow, and through the T template, it deviates from to prevent to press from both sides tight jackscrew, weaken the tight power in top of pressing from both sides tight jackscrew promptly, prevent to sting affected limb skull, the clamp force of supporting the jackscrew has been increased again, prevent the slippage, protect affected limb head tissue. Two jackscrews are adjusted, and the tight dynamics of clamp is more accurate to be adjusted, and it is better to press from both sides tight effect, can reduce the frequency of medical personnel's debugging, prolongs the debugging cycle, reduces medical personnel's intensity of labour to be convenient for fold and accomodate, when later stage disinfection envelope is deposited, save shared space.

Drawings

The present invention will be further described with reference to the accompanying drawings and the following detailed description.

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a front view of the present invention.

Fig. 3 is a partial structural sectional view of the present invention.

Fig. 4 is a schematic view of a partial structure of the present invention.

Fig. 5 is a schematic structural diagram of the present invention after the distance is coarsely adjusted.

Fig. 6 is a force analysis diagram of the present invention when the pulling force is increased.

Fig. 7 is a schematic structural view of the utility model of the sealing tape after disinfection.

Reference numbers in the figures:

1. the left splint, 2, right splint, 3, link, 4, coarse adjustment mechanism, 5, T template, 6, the tight jackscrew of clamp, 7, support jackscrew, 41, go up the L template, 42, lower L template, 43, screw rod, 44, burr knob, 45, gear tooth.

Detailed Description

As shown in figures 1-7, a novel skull traction bow comprises a left splint 1, a right splint 2, a hanging ring 3, a coarse adjustment mechanism 4 and a pincer tip device, wherein the left splint 1 and the right splint 2 are plate bodies of a quarter circle body, the end parts of the left splint and the right splint are hinged through a hinge shaft, one end of the hanging ring 3 is opened, the opening part is fixedly connected with the upper end and the lower end of the hinge shaft, the coarse adjustment mechanism 4 is arranged between the left splint 1 and the right splint 2, the tail ends of the left splint and the right splint are respectively provided with the pincer tip device, the distance between the two pincer tip devices is adjusted through the coarse adjustment mechanism 4, the skull of a wounded limb is clamped and dragged, wherein the pincer tip device consists of a T-shaped plate 5, a clamping jackscrew 6 and a supporting jackscrew 7, the end parts of the left splint 1 and the right splint 2 are both hinged with a T-shaped plate 5, a central longitudinal plate of the T-shaped plate 5 is hinged with the end part of the splint, a transverse plate of the T-shaped plate 5 is symmetrical along the axis center of the longitudinal plate, the transverse plate is provided with the jackscrew 6 and the supporting jackscrew 7 screwed in the transverse plate, when the vertical plate of T template 5 used its hinge as the axle center to two sharp board center rotations to horizontality, the tip level of pressing from both sides tight jackscrew 6 and supporting jackscrew 7 was inboard towards, and at this moment presss from both sides tight jackscrew 6 and is located the vertical board below of T template 5, supports the vertical board top that jackscrew 7 is located T template 5, 6 tip of pressing from both sides tight jackscrew be sharp-pointed cone, the outer knurling knob of its tail end fixedly connected with, 7 tip of supporting jackscrew be the spheroid cone, the outer knurling knob of its tail end fixedly connected with. When the splint is clamped tightly, the forceps tip device props the skull of the affected limb, the traditional skull traction bow only has the clamping jackscrew 6 to pierce the skull for clamping, the support jackscrew 7 forming a link mechanism with the splint is added, the support jackscrew 7 is screwed, the clamping force of the clamping jackscrew 6 can be controlled, the support effect can also be achieved, the clamping jackscrew 6 is prevented from being separated due to looseness, when the clamping jackscrew 6 is loosened due to the looseness of the skull position, the T-shaped plate 5 swings downwards by taking the hinge shaft as the axis under the action of traction force, at the moment, the support jackscrew 7 can prop against the skull, the clamping jackscrew 6 is prevented from being separated, the support force is increased under the action of the traction force, the clamping is realized by the support jackscrew 7 in an auxiliary way, the slipping is prevented, and when the traction force is suddenly increased, the support jackscrew 7 can increase the jacking force under the micro-swing of the T-shaped plate 5, avoid pressing from both sides tight jackscrew 6 and increase the tight power in top, support jackscrew 7 tip moreover and be the spheroid, can not stab the affected limb, prevent to press from both sides tight 6 tip of jackscrew and pierce through the intracranial inner panel, avoid causing patient's acute epidural hematoma.

Furthermore, the coarse adjustment mechanism 4 comprises an upper L-shaped plate 41, a lower L-shaped plate 42, a screw 43, a relief knob 44 and gear teeth 45, the upper and lower parts of the hinged end of the left splint 1 are fixedly connected with the upper L-shaped plate 41 and the lower L-shaped plate 42, the bent plates of the upper L-shaped plate 41 and the lower L-shaped plate 42 face to the right side, the rotatable screw 43 is inserted between the upper L-shaped plate 41 and the lower L-shaped plate 42, the hinged end of the right splint 2 is fixedly connected with the gear teeth 45 engaged with the screw 43, the screw 43 below the upper L-shaped plate 41 is fixedly connected with an anti-falling convex step, a square head is fixedly connected with the screw 43 above the upper L-shaped plate 41, the square head is sleeved with the relief knob 44 fixed in a matched manner, the top of the relief knob 44 is fixed by screwing the screw into the screw 43, the screw 43 is rotated by the relief knob 44, the screw 43 drives the gear teeth 45 engaged with the screw 43, so that the right splint 2 swings, thereby the interval between two splint of control, realize the coarse adjustment, drive radius is the tooth wall of gear tooth 45 to the distance at its hinge center, and the swing arm is whole right splint 2, the shorter the gear tooth 45 diameter is, the swing efficiency is higher, and screw rod 44 and the connected mode of gear tooth 45, can effectually play the auto-lock effect, and it is less to revolve the dynamics of twisting, convenient quick adjustment revolves when twisting to the contact of two pincers point devices, whole device is folding to minimum volume, and the occupation space is obviously less than the bow type traction frame of integral type, deposits behind the disinfection envelope of more being convenient for.

Further, the screw 43 may be replaced by a worm, and the gear teeth 45 may be replaced by worm gear teeth.

Claims (3)

1. The utility model provides a novel skull traction bow, including left splint (1), right splint (2), link (3), coarse adjustment mechanism (4), pincers point device, left splint (1) and right splint (2), be the plate body of quarter circle body, it is articulated through the hinge to control two splint tip, link (3) one end opening, the upper and lower end fixed connection of opening part and hinge is equipped with coarse adjustment mechanism (4) between left splint (1) and right splint (2), two splint tail ends all are equipped with pincers point device about, through coarse adjustment mechanism (4) adjustment two pincers point device intervals, the centre gripping suffers from limb skull and pulls its characterized in that: the clamp point device consists of a T-shaped plate (5), a clamping jackscrew (6) and a supporting jackscrew (7), wherein the end parts of a left clamping plate (1) and a right clamping plate (2) are respectively hinged with the T-shaped plate (5), a central longitudinal plate of the T-shaped plate (5) is hinged with the end parts of the clamping plates, transverse plates of the T-shaped plate (5) are symmetrical along the axis center of the longitudinal plate, the end surfaces of the transverse plates are provided with the clamping jackscrew (6) and the supporting jackscrew (7) which are screwed in by screw threads, when the longitudinal plate of the T-shaped plate (5) rotates to the center of two sharp plates to the horizontal state by taking a hinge shaft as the axis, the end parts of the clamping jackscrew (6) and the supporting jackscrew (7) horizontally face towards the inner side, the clamping jackscrew (6) is positioned below the longitudinal plate of the T-shaped plate (5), the supporting jackscrew (7) is positioned above the longitudinal plate of the T-shaped plate (5), the end part of the clamping jackscrew (6) is a sharp cone, and the tail end of the clamping jackscrew (6) is fixedly connected with an outer knurling knob, the end part of the supporting jackscrew (7) is a sphere cone, and the tail end of the supporting jackscrew is fixedly connected with an outer knurling knob.

2. The novel skull traction bow of claim 1, wherein: the coarse adjustment mechanism (4) consists of an upper L-shaped plate (41), a lower L-shaped plate (42), a screw rod (43), a convex pattern knob (44) and gear teeth (45), an upper L-shaped plate (41) and a lower L-shaped plate (42) are fixedly connected above and below the hinged end of the left splint (1), the bent plates of the upper L-shaped plate (41) and the lower L-shaped plate (42) face to the right, a rotatable screw rod (43) is inserted between the upper L-shaped plate (41) and the lower L-shaped plate (42), the hinged end of the right splint (2) is fixedly connected with gear teeth (45) which are engaged with the screw rod (43), the screw rod (43) under the upper L-shaped plate (41) is fixedly connected with an anti-falling convex step, a square head is fixedly connected to a screw rod (43) above the upper L-shaped plate (41), a convex pattern knob (44) matched and fixed with the square head is sleeved on the square head, and the top of the convex pattern knob (44) is screwed into the screw rod (43) through a screw to fix the convex pattern knob.

3. The novel skull traction bow of claim 2, wherein: the screw (43) may be replaced by a worm and the gear teeth (45) may be replaced by worm gear teeth.

Images