CN213310234U - Cervical vertebra fracture dislocation anterior approach struts and draws resetting means - Google Patents
Cervical vertebra fracture dislocation anterior approach struts and draws resetting means Download PDFInfo
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- CN213310234U CN213310234U CN202022029567.5U CN202022029567U CN213310234U CN 213310234 U CN213310234 U CN 213310234U CN 202022029567 U CN202022029567 U CN 202022029567U CN 213310234 U CN213310234 U CN 213310234U
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Abstract
The utility model provides a way struts lifting and lowering device before cervical vertebra fracture dislocation, it is equipped with the ware of strutting that comprises left vaulting pole, spur rack, right vaulting pole, loop bar and distraction screw to erect the arm-tie that the strip can slide around and lock through compound sliding sleeve on the rectangle body of rod of left vaulting pole and right vaulting pole, erect a lifting platform on the basis of the ware of strutting from this, can implement the lifting operation through the arm-tie screw of arm-tie trompil inslot activity joint. Because the front and back positions of the lifting plate can be adjusted, when the injured vertebra and the upper and lower distraction vertebral bodies have certain lateral dislocation, the position of the lifting plate can be correspondingly adjusted, so that the lifting point of the lifting screw can be directly opposite to the position of the injured vertebra. Because the lifting plate clamps the lifting screw through the long hole groove, the lifting position of the lifting screw on the long hole groove can be flexibly adjusted, and if the lifting force is not enough in the lifting process, the lifting force can be conveniently increased by increasing the number of the lifting screws.
Description
Technical Field
The utility model relates to a resetting device for orthopedics, in particular to a cervical vertebra fracture dislocation anterior approach distraction lifting resetting device, which belongs to the technical field of medical appliances.
Background
Cervical vertebra fracture dislocation caused by trauma is common clinically, is a very serious spinal injury, often causes cervical vertebra three-column structural damage, sequence abnormality, cervical vertebra instability and spinal cord injury, has serious injury and bad prognosis, and has high fatality rate and disability rate. Early therapeutic repositioning is the most effective and direct method to relieve spinal cord compression, reduce nerve cell death, and restore nerve function. The decompression and resetting of the operation as early as possible has important significance on the recovery of the nerve function of a patient with nerve function symptoms, and can reduce secondary spinal cord injury caused by moving the patient aiming at the patient with multiple wounds on the whole body, if the operation can be performed in the first-stage previous operation, and meanwhile, the chest and abdomen injury patient can avoid the influence of blood pressure, heart rate and respiration caused by chest and abdominal cavity compression in the prone position. The anterior surgery can fully remove broken intervertebral discs, directly reduce pressure and obtain the favor of a plurality of spinal surgeons with lower complications, but because the anterior conventional prying reduction method has difficulty in treating cases of articular process interlocking, the prying and opening gap width has obvious influence on the spinal cord and the peripheral tissue re-injury, therefore, in order to avoid inserting the conventional reduction instrument into the prying and opening injured tissues and nerves, part of hospitals adopt the opening screw lifting reduction method for replacing, namely, an upper vertebral body and a lower vertebral body of the injured vertebra are opened by using a tool, and the injured vertebra is lifted upwards by lifting a screw.
Because of lack of special tools for adaptation, the current spreading screw lifting reduction method is generally implemented by matching the existing anterior cervical vertebra vertebral body spreader with an independent lifting device, and at the moment, the fixing and the adjustment of the lifting device are difficult. Chinese patent CN200820020303.X provides a cervical vertebra fracture dislocation restorer, which is additionally provided with an adjusting rod bracket on the basis of the existing cervical anterior vertebral body tractor, and a lifting screw is erected on the adjusting rod bracket. This technical scheme has solved the fixed problem to carrying the pulling apparatus, nevertheless can't adjust the lateral position of carrying the pulling point, carries the pulling point and can only be located two line of strutting the point, and when hindering vertebra and the upper and lower position distraction centrum have certain lateral displacement, carry the pulling point and can't carry out corresponding adjustment, lead to carrying the pulling effect not good, if in addition carry the pulling in-process to find to carry the pulling force not enough, also can't increase the pulling force through the mode that increases and carry screw quantity.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a way struts to carry and draws resetting means before cervical vertebra fracture dislocation to solve the problem that adopts the screw that struts to carry and draws the specialized tool that lacks the adaptation when the reposition of redundant personnel of cervical vertebra fracture dislocation patient carries out the way operation before.
The utility model discloses the technical scheme who adopts as follows:
a front-path opening, lifting and resetting device for cervical vertebra fracture dislocation is provided, wherein a horizontal and longitudinal left stay bar is arranged on the left side of the device, the left stay bar adopts a rectangular bar body, and a base station is arranged at the front end of the rectangular bar body; a spur rack horizontally extending rightwards is fixedly connected to the right side face of the left stay bar base station, and the tooth surface of the spur rack is upward; a right stay bar which is arranged in parallel with the left stay bar and can transversely move left and right along the spur rack is sleeved on the spur rack in a sliding manner, the right stay bar adopts a rectangular bar body which is the same as the left stay bar, and the front end of the rectangular bar body is also provided with a base station; a rectangular hole groove for the straight rack to pass through is formed in the right supporting rod base station, a transverse sliding sleeve which surrounds the straight rack extends rightwards from the position, corresponding to the rectangular hole groove, of the right side surface of the right supporting rod base station, and a driving mechanism which enables the right supporting rod to transversely move leftwards and rightwards along the straight rack and an anti-return mechanism which locks the left movement of the right supporting rod are arranged above the transverse sliding sleeve; the lower sides of the rear ends of the rectangular rod bodies of the left stay bar and the right stay bar are respectively connected with a sleeve bar which vertically extends downwards through a threaded hole, the center of the sleeve bar is provided with a central hole, and the lower end of the sleeve bar is movably inserted with a spreading screw through the central hole; the composite sliding sleeves are respectively sleeved on the rectangular rod bodies of the left stay rod and the right stay rod and can horizontally and longitudinally slide along the rectangular rod bodies, the composite sliding sleeves are provided with the horizontal and longitudinal rectangular sliding sleeves which are matched with the rectangular rod bodies of the left stay rod and the right stay rod, a locking screw is arranged on a top plate of each rectangular sliding sleeve, a section of horizontal support plate extends backwards from the rear side of the top plate of each rectangular sliding sleeve, and a plate body at the rear end of each horizontal support plate is provided with a horizontal lifting plate sleeve hole; a horizontally and transversely arranged long pulling plate is movably inserted into the pulling plate sleeve holes of the left and right composite sliding sleeves, a transverse long hole groove is formed in the middle of a plate body of the pulling plate, and at least one longitudinal pulling screw is movably clamped in the long hole groove; the lifting screw is arranged by adopting a strip self-tapping screw, and a rod body of the lifting screw penetrates through the long hole groove of the lifting plate from top to bottom and is clamped on the long hole groove through a screw head.
The driving mechanism is provided with a driving gear with an operating handle, and the driving gear is rotatably supported on the transverse sliding sleeve through a bearing seat and is meshed with a spur rack in the transverse sliding sleeve.
The anti-retreat mechanism is provided with a wane type limiting pawl erected above the transverse sliding sleeve, the claw tip of the limiting pawl is obliquely inserted into the tooth groove of the spur rack from right to left in the opening hole in the upper side of the transverse sliding sleeve, so that the left movement of the right support rod is limited in one way, and the clamping position of the limiting pawl is provided with a tension spring for pre-tightening and can be loosened through manual pressing.
The lower end of the spreading screw is a conical self-tapping screw, a hexagonal boss is arranged above a pan head of the conical self-tapping screw, and a long guide rod is arranged above the hexagonal boss; the upper part body of rod of loop bar is the back taper platform shape, and the lower part body of rod is cylindrical, when strutting the screw and pegging graft on the loop bar, props the hexagon boss top of strutting the screw and leans on the lower terminal surface of loop bar, and the long guide arm of strutting the screw inserts in the centre bore of loop bar.
The left end of the lifting plate is provided with a clamping joint, the lifting plate is inserted into the lifting plate sleeve holes of the left and right composite sliding sleeves from left to right until the clamping joint of the lifting plate abuts against the left edge of the left lifting plate sleeve hole.
This cervical vertebra fracture dislocation front road struts draws resetting means is equipped with the ware that struts that comprises left vaulting pole, spur rack, right vaulting pole, loop bar and distraction screw to erect the arm-tie that the strip can slide and lock around through compound sliding sleeve on the rectangular rod body of left vaulting pole and right vaulting pole, erect one from this on the basis of the ware of strutting and draw the platform, draw the screw can implement to draw the operation through carrying of arm-tie trompil inslot activity joint. Because the front and back positions of the lifting plate can be adjusted, when the injured vertebra and the upper and lower distraction vertebral bodies have certain lateral dislocation, the position of the lifting plate can be correspondingly adjusted, so that the lifting point of the lifting screw can be directly opposite to the position of the injured vertebra. In addition, the lifting plate clamps the lifting screws through the long hole grooves, the lifting positions of the lifting screws on the long hole grooves can be flexibly adjusted, and if insufficient lifting force is found in the lifting process, the lifting force can be conveniently increased by increasing the number of the lifting screws. Therefore, the cervical vertebra fracture dislocation anterior distraction lifting reduction device is very suitable for being clinically popularized and used as an adaptive tool for performing anterior surgery on a cervical vertebra fracture dislocation patient by adopting a distraction screw lifting reduction method.
Drawings
Fig. 1 is a perspective view of the cervical vertebra fracture dislocation anterior distraction lifting reduction device.
Fig. 2 is a top view of fig. 1.
Fig. 3 is a front side view of fig. 1.
Fig. 4 is a sectional view of the connection between the rear end of the rectangular rod body of the left stay bar and the loop bar and the stay screw.
Fig. 5 is an exploded view of the front distraction lifting reduction device for cervical vertebra fracture dislocation in fig. 1.
Fig. 6 is a schematic view of the cervical vertebra fracture dislocation anterior distraction lifting reduction device in use.
In the figure: 1-left stay bar, 2-straight rack, 3-right stay bar, 4-transverse sliding sleeve, 5-driving gear, 6-limit pawl, 7-tension spring, 8-sleeve bar, 8.1-central hole, 9-spreading screw, 9.1-hexagonal boss, 9.2-long guide rod, 10-composite sliding sleeve, 10.1-rectangular sliding sleeve, 10.2-locking screw, 10.3-horizontal support plate, 10.4-lifting plate sleeve hole, 11-lifting plate, 11.1-clamping joint, 11.2-long hole groove and 12-lifting screw.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings. In the description of the present invention, the terms "front", "back", "left", "right", "up", "down", etc. are defined based on the orientation or positional relationship shown in fig. 1 of the specification, and are only for convenience of description of the present invention, and do not refer to a specific orientation that a device or element must have, and should not be considered as limiting the present invention.
As shown in fig. 1-5, a horizontal and longitudinal left stay bar 1 is arranged on the left side of the cervical vertebra fracture dislocation anterior distraction lifting reduction device, the left stay bar 1 adopts a rectangular bar body, and the front end of the rectangular bar body is provided with a base station; a spur rack 2 horizontally extending rightwards is fixedly connected to the right side face of the base of the left stay bar 1, and the tooth surface of the spur rack 2 faces upwards; a right stay bar 3 which is arranged in parallel with the left stay bar 1 and can transversely move left and right along the spur rack 2 is sleeved on the spur rack 2 in a sliding manner, the right stay bar 3 adopts a rectangular bar body which is the same as the left stay bar 1, and the front end of the rectangular bar body is also provided with a base station; the base station of the right support rod 3 is provided with a rectangular hole groove for the penetration of the spur rack 2, the right side surface of the base station of the right support rod 2 extends rightwards at a position corresponding to the rectangular hole groove to form a transverse sliding sleeve 4 which surrounds the spur rack 2, and a driving mechanism for enabling the right support rod 3 to transversely move leftwards and rightwards along the spur rack 2 and a return prevention mechanism for locking the left movement of the right support rod 3 are arranged above the transverse sliding sleeve 4. The driving mechanism is provided with a driving gear 5 with an operating handle, and the driving gear 5 is rotatably supported on the transverse sliding sleeve 4 through a bearing seat and is meshed with the spur rack 2 in the transverse sliding sleeve 4. The anti-retreat mechanism is provided with a seesaw type limiting pawl 6 erected above the transverse sliding sleeve 4, the claw tip of the limiting pawl 6 is obliquely inserted into the tooth groove of the straight rack 2 from right to left in the opening hole on the upper side of the transverse sliding sleeve 4, therefore, the left movement of the right support rod 3 is limited in one direction, and the clamping position of the limiting pawl 6 is provided with a tension spring 7 for pre-tightening and can be loosened through manual pressing.
The lower side of the rear end of the rectangular rod body of the left support rod 1 and the right support rod 3 is respectively connected with a sleeve rod 8 which vertically extends downwards through a threaded hole, the center of the sleeve rod 8 is provided with a central hole 8.1, and the lower end of the sleeve rod 8 is movably inserted with a spreading screw 9 through the central hole 8.1. The lower end of the spreading screw 9 is a conical self-tapping screw, a hexagonal boss 9.1 is arranged above the pan head of the conical self-tapping screw, and a long guide rod 9.2 is arranged above the hexagonal boss; the upper rod body of loop bar 8 is the back taper platform shape, and the lower part body of rod is cylindrical, when strutting screw 9 and pegging graft on loop bar 8, props hexagonal boss 9.1 of strutting screw 9 and leans on the lower terminal surface of loop bar 8, and the long guide arm 9.2 of strutting screw 9 inserts in the centre bore 8.1 of loop bar 8.
The composite sliding sleeves 10 capable of sliding horizontally and longitudinally along the rectangular rod bodies are respectively sleeved on the rectangular rod bodies of the left support rod 1 and the right support rod 3, each composite sliding sleeve 10 is provided with a horizontal longitudinal rectangular sliding sleeve 10.1 which is matched with the rectangular rod bodies of the left support rod 1 and the right support rod 3, a top plate of each rectangular sliding sleeve 10.1 is provided with a locking screw 10.2, the rear side of the top plate of each rectangular sliding sleeve 10.1 extends backwards to form a section of horizontal support plate 10.3, and a plate body at the rear end of each horizontal support plate 10.3 is provided with a horizontal lifting plate sleeve hole 10.4; a horizontally and transversely arranged long-strip pulling plate 11 is movably inserted into the pulling plate sleeve holes 10.4 of the left and right composite sliding sleeves 10, a clamping joint 11.1 is arranged at the left end of the pulling plate 11, and the pulling plate 11 is inserted into the pulling plate sleeve holes 10.4 of the left and right composite sliding sleeves 10 from left to right until the clamping joint 11.1 of the pulling plate 11 abuts against the left edge of the left pulling plate sleeve hole 10.4; the middle part of the plate body of the lifting plate 11 is provided with a transverse long hole groove 11.2, and at least one longitudinal lifting screw 12 is movably clamped in the long hole groove 11.2; lifting screw 12 adopts rectangular self-tapping screw setting, and lifting screw 12's the body of rod passes lifting plate 11's slot 11.2 from last to down and through the screw head joint on slot 11.2.
As shown in figure 6, when the front-path distraction lifting reduction device for cervical vertebra fracture dislocation is used, firstly, a sleeve is used to enable a screwdriver to respectively drive two distraction screws 9 to enter the upper vertebral body and the lower vertebral body of a damaged vertebra, then a driving gear 5 is manually rotated to enable a right strut 3 to move to a proper position, the distance between sleeve rods 8 at the lower ends of a left strut 1 and a right strut 3 is matched with the distance between the two distraction screws 9, central holes 8.1 of the sleeve rods 8 at the left side and the right side are respectively sleeved into long guide rods 9.2 of the two distraction screws 9, the driving gear 5 is manually rotated to enable the right strut 3 to slowly move to the right, the upper vertebral body and the lower vertebral body of the damaged vertebra can be distracted from the left side and the right side, and the clamping position of a limiting pawl 6 after distraction can prevent the right strut 3 from backing up leftwards under the stress. Then, the positions of the composite sliding sleeve 10 on the rectangular rod bodies of the left and right support rods are adjusted according to the specific position of the injured vertebra, the composite sliding sleeve is locked through a locking screw 10.2, the lifting plate 11 is located right above the injured vertebra, a lifting screw 12 penetrates into a transverse long hole 11.2 of the lifting plate 11, a self-tapping screw at the lower end of the lifting screw 12 is screwed into the injured vertebra, a screw head of the lifting screw 12 is clamped on the long hole 11.2, the injured vertebra can be lifted upwards by continuously screwing the lifting screw 12 into the injured vertebra due to the fixed height of the lifting plate 11, and if the lifting force is insufficient in the lifting process, the lifting force can be increased by increasing the number of the lifting screws 12 until the injured vertebra is lifted to the normal position.
The above-mentioned drawings are only exemplary embodiments of the present invention and are not intended to limit the present invention, and any modifications or equivalent substitutions and improvements made within the spirit and principles of the present invention should be included within the scope of the present invention.
Claims (5)
1. A cervical vertebra fracture dislocation anterior approach struts draws resetting means, characterized by: a horizontal and longitudinal left stay bar is arranged on the left side of the cervical vertebra fracture dislocation front-path opening, lifting and resetting device, the left stay bar is a rectangular bar body, and a base station is arranged at the front end of the rectangular bar body; a spur rack horizontally extending rightwards is fixedly connected to the right side face of the left stay bar base station, and the tooth surface of the spur rack is upward; a right stay bar which is arranged in parallel with the left stay bar and can transversely move left and right along the spur rack is sleeved on the spur rack in a sliding manner, the right stay bar adopts a rectangular bar body which is the same as the left stay bar, and the front end of the rectangular bar body is also provided with a base station; a rectangular hole groove for the straight rack to pass through is formed in the right supporting rod base station, a transverse sliding sleeve which surrounds the straight rack extends rightwards from the position, corresponding to the rectangular hole groove, of the right side surface of the right supporting rod base station, and a driving mechanism which enables the right supporting rod to transversely move leftwards and rightwards along the straight rack and an anti-return mechanism which locks the left movement of the right supporting rod are arranged above the transverse sliding sleeve; the lower sides of the rear ends of the rectangular rod bodies of the left stay bar and the right stay bar are respectively connected with a sleeve bar which vertically extends downwards through a threaded hole, the center of the sleeve bar is provided with a central hole, and the lower end of the sleeve bar is movably inserted with a spreading screw through the central hole; the composite sliding sleeves are respectively sleeved on the rectangular rod bodies of the left stay rod and the right stay rod and can horizontally and longitudinally slide along the rectangular rod bodies, the composite sliding sleeves are provided with the horizontal and longitudinal rectangular sliding sleeves which are matched with the rectangular rod bodies of the left stay rod and the right stay rod, a locking screw is arranged on a top plate of each rectangular sliding sleeve, a section of horizontal support plate extends backwards from the rear side of the top plate of each rectangular sliding sleeve, and a plate body at the rear end of each horizontal support plate is provided with a horizontal lifting plate sleeve hole; a horizontally and transversely arranged long pulling plate is movably inserted into the pulling plate sleeve holes of the left and right composite sliding sleeves, a transverse long hole groove is formed in the middle of a plate body of the pulling plate, and at least one longitudinal pulling screw is movably clamped in the long hole groove; the lifting screw is arranged by adopting a strip self-tapping screw, and a rod body of the lifting screw penetrates through the long hole groove of the lifting plate from top to bottom and is clamped on the long hole groove through a screw head.
2. The cervical vertebra fracture dislocation anterior approach distraction lifting reduction device of claim 1, which is characterized in that: the driving mechanism is provided with a driving gear with an operating handle, and the driving gear is rotatably supported on the transverse sliding sleeve through a bearing seat and is meshed with a spur rack in the transverse sliding sleeve.
3. The cervical vertebra fracture dislocation anterior approach distraction lifting reduction device of claim 1, which is characterized in that: the anti-retreat mechanism is provided with a wane type limiting pawl erected above the transverse sliding sleeve, the claw tip of the limiting pawl is obliquely inserted into the tooth groove of the spur rack from right to left in the opening hole in the upper side of the transverse sliding sleeve, so that the left movement of the right support rod is limited in one way, and the clamping position of the limiting pawl is provided with a tension spring for pre-tightening and can be loosened through manual pressing.
4. The cervical vertebra fracture dislocation anterior approach distraction lifting reduction device of claim 1, which is characterized in that: the lower end of the spreading screw is a conical self-tapping screw, a hexagonal boss is arranged above a pan head of the conical self-tapping screw, and a long guide rod is arranged above the hexagonal boss; the upper part body of rod of loop bar is the back taper platform shape, and the lower part body of rod is cylindrical, when strutting the screw and pegging graft on the loop bar, props the hexagon boss top of strutting the screw and leans on the lower terminal surface of loop bar, and the long guide arm of strutting the screw inserts in the centre bore of loop bar.
5. The cervical vertebra fracture dislocation anterior approach distraction lifting reduction device of claim 1, which is characterized in that: the left end of the lifting plate is provided with a clamping joint, the lifting plate is inserted into the lifting plate sleeve holes of the left and right composite sliding sleeves from left to right until the clamping joint of the lifting plate abuts against the left edge of the left lifting plate sleeve hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022029567.5U CN213310234U (en) | 2020-09-16 | 2020-09-16 | Cervical vertebra fracture dislocation anterior approach struts and draws resetting means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022029567.5U CN213310234U (en) | 2020-09-16 | 2020-09-16 | Cervical vertebra fracture dislocation anterior approach struts and draws resetting means |
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| CN213310234U true CN213310234U (en) | 2021-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022029567.5U Active CN213310234U (en) | 2020-09-16 | 2020-09-16 | Cervical vertebra fracture dislocation anterior approach struts and draws resetting means |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113842198A (en) * | 2021-09-08 | 2021-12-28 | 汕头大学 | Rotary locking type cervical vertebra restorer with 3D printing function |
| CN114617624A (en) * | 2022-03-09 | 2022-06-14 | 四川大学华西医院 | Lifting reduction auxiliary device for femoral shaft fracture operation |
-
2020
- 2020-09-16 CN CN202022029567.5U patent/CN213310234U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113842198A (en) * | 2021-09-08 | 2021-12-28 | 汕头大学 | Rotary locking type cervical vertebra restorer with 3D printing function |
| CN113842198B (en) * | 2021-09-08 | 2024-02-20 | 汕头大学 | Rotary locking type cervical vertebra restorer with 3D printing function |
| CN114617624A (en) * | 2022-03-09 | 2022-06-14 | 四川大学华西医院 | Lifting reduction auxiliary device for femoral shaft fracture operation |
| CN114617624B (en) * | 2022-03-09 | 2023-05-23 | 四川大学华西医院 | Lifting and resetting auxiliary device for femoral shaft fracture operation |
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