CN205514851U - Fixing system's thorn piece mechanism in one -way with thorn axial of wicresoft's waist sacral merges - Google Patents

Abstract

The utility model provides a fixing system's thorn piece mechanism in one -way with thorn axial of wicresoft's waist sacral merges, thorn mascerating machine constituent stings piece mechanism after with for preceding thorn piece mechanism, and preceding thorn piece mechanism is including thorn piece, thorn bar and pivot, and the thorn piece is through the one end of the rotatable connection of pivot at the thorn bar, and the other end that stings the bar is equipped with screw rod section A, after sting piece mechanism and draw together thorn piece, thorn bar and pivot, the thorn piece is through the one end of the rotatable connection of pivot at the thorn bar, the other end of thorn bar is equipped with screw rod section B. This fixing system's thorn piece mechanism in one -way with thorn axial of wicresoft's waist sacral merges is novel in design, simple structure not only, and is easy and simple to handle, can also reduce in the operation wound quantity that need open at the disease body surface, shortens operation time, reduces intraoperative bleeding amount for the disease is recovered.

Description

A kind of Ci Pian mechanism of the unidirectional barbed axial fusion internal fixation system of Wicresoft lumbosacral spine

Technical field

This utility model relates to bone surgery set, and particularly a kind of Wicresoft lumbosacral spine is unidirectional barbed axially to be melted Close the Ci Pian mechanism of internal fixation system.

Background technology

Lumbosacral fusion is a kind of common surgical side of the diseases such as clinical treatment lumbosacral spine degenerated, shakiness Formula.Current routine clinical anterior approach easy damaged internal organs, blood vessel and nerve, posterior approach is to spinal column physiology Function interference is big, does not meets the biomethanics structure of spinal column.In the recent decade, along with Wicresoft's theory and section The development learned a skill, with peritoneoscope front road acanthopore, mini-invasive incision, Percutaneous fixation fusion etc. as representative Novel lumbar anterior minimally invasive operation achieve rapid progress.

Notification number is that the patent of invention of CN104146756A discloses that a kind of Wicresoft lumbosacral spine is locking axially to be melted Close internal fixation system, including porous contiguous block and location sighting device mounted thereto and screw placement dress Putting, location sighting device is provided with location pointing device, sets between porous contiguous block and screw placement device There is fixing device.Although this fusion internal fixation system is implanted, precision is higher, good fixing effect, but exist with Lower weak point: in operation process, implants bar and extend into the position elder generation shape needing to fix from patient body-surface Becoming first wound, two monodirectional locking screws are dumb due to structure, arrive human lumbar vertebral body and sacrum portion Must enter from the position that patient body-surface is other, then formation second and the 3rd wound, whole operation Trivial operations, operating time is long, and wound quantity is more, and amount of bleeding is relatively big, and sufferer rehabilitation duration is long.

Summary of the invention

The purpose of this utility model is to overcome the deficiencies in the prior art, and provides a kind of Wicresoft lumbosacral spine unidirectional The Ci Pian mechanism of barbed axial fusion internal fixation system.It solve the locking axial fusion of existing lumbosacral spine Internal fixation system is applied to the problem that during operation, body surface wound is more.

The technical solution of the utility model is: fixing system in the unidirectional barbed axial fusion of lumbosacral spine of a kind of Wicresoft The Ci Pian mechanism of system, described Ci Pian mechanism is divided into Qian Cipian mechanism and Hou Cipian mechanism, and Qian Cipian mechanism wraps Including thorn sheet, thorn bar and rotating shaft, thorn sheet is rotatably coupled to sting one end of bar, stings sheet by rotating shaft The other end of seat is provided with spiro rod section A；Hou Cipian mechanism includes thorn sheet, thorn bar and rotating shaft, and thorn sheet is by turning Axle is rotatably coupled to sting one end of bar, and the other end of thorn bar is provided with spiro rod section B.

The further technical scheme of this utility model is: the spiro rod section A of the thorn bar of described Qian Cipian mechanism End be provided with bootable Hou Cipian mechanism thorn sheet rotate guide surface.

Owing to have employed technique scheme, compared with prior art, one described in the utility model is micro- The Ci Pian mechanism of the wound unidirectional barbed axial fusion internal fixation system of lumbosacral spine, unique pivot design, can make Thorn sheet flexible rotating around the shaft in Ci Pian mechanism, in operation process, Ci Pian mechanism matching with micro-traumatic waist sacrum The unidirectional barbed axial fusion internal fixation system of vertebra is used together, and can Shi Qiancipian mechanism and Hou Cipian mechanism exist After arriving in inner fixer, utilize the guiding of guide surface that two thorn sheets are inserted patient's lumbar vertebral body and sacrum respectively Portion, thus effectively prevent lumbar vertebral body and sacrum portion from rotating against, reach intended therapeutic effect.In sum, The Ci Pian mechanism of the unidirectional barbed axial fusion internal fixation system of this kind of Wicresoft lumbosacral spine not only modern design, Simple in construction, easy and simple to handle, moreover it is possible to reduce the wound quantity needing to open at sufferer body surface in operation, shorten Operating time, reduces intraoperative blood loss, accelerates sufferer rehabilitation.

Below in conjunction with figure and embodiment, this utility model is further described.

Accompanying drawing explanation

Fig. 1 is the structural representation of Qian Cipian mechanism；

Fig. 2 is the structural scheme of mechanism of Hou Cipian mechanism；

Fig. 3 is the structural representation of the unidirectional barbed axial fusion internal fixation system of Wicresoft's lumbosacral spine；

After the Ci Pian mechanism of the unidirectional barbed axial fusion internal fixation system of Fig. 4 Wicresoft lumbosacral spine implants vertebra View.

Shown in figure: 1 be Qian Cipian mechanism, 11 be thorn sheet, 12 be thorn bar, 121 be spiro rod section A, 1211 be guide surface A, 13 for rotating shaft, 2 for Hou Cipian mechanism, 21 for thorn sheet, 22 for thorn bar, 221 For spiro rod section B, 23 be rotating shaft, 3 be thorn sheet delivery device, 4 for implant bar, 5 be inner fixer, 51 be Axially waist hole A, 52 be axial waist hole B, 6 be front plug, 61 be guide surface B, 7 be rear plug, A be waist 5 Vertebral body, B are sacrum 1.

Detailed description of the invention

Embodiment:

As shown in Fig. 1～2, the thorn sheet machine of the unidirectional barbed axial fusion internal fixation system of a kind of Wicresoft lumbosacral spine Structure, described Ci Pian mechanism is divided into mechanism 2 of Qian Cipian mechanism 1 and Hou Cipian, and Qian Cipian mechanism 1 includes thorn Sheet 11, thorn bar 12 and rotating shaft 13, thorn sheet 11 is rotatably coupled to sting bar 12 by rotating shaft 13 One end, thorn bar 12 the other end be provided with spiro rod section A121；Hou Cipian mechanism 2 includes thorn sheet 21, thorn Bar 22 and rotating shaft 23, thorn sheet 21 is rotatably coupled to sting one end of bar 22 by rotating shaft 23, The other end of thorn bar 22 is provided with spiro rod section B221；The screw rod of the thorn bar 12 of described Qian Cipian mechanism 1 The end of section A121 is provided with the guide surface A1211 that the thorn sheet 21 of bootable Hou Cipian mechanism 2 rotates.

Operation principle of the present utility model is as follows:

As shown in figs. 34, first, inner fixer 4 is arranged on implantation bar 3, by implanting bar 3 By inner fixer 4 from the other presacral space approach of patient's tail cone, afterwards through the sacrum 1B of patient, waist 5/ sacrum 1 Intervertebral disc (not shown), screws in waist 5 vertebral body A；Then, front plug 6 is sent into inner fixer In 5 and be fixed on inner fixer 5 front end；Then, thorn sheet delivery device 3 is arranged on implantation bar 4 On, Qian Cipian mechanism 1 is arranged on thorn sheet delivery device 3 by spiro rod section A121, utilizes thorn sheet to push Qian Cipian mechanism 1 is sent in inner fixer 5 by mechanism 3, and the thorn sheet 11 of current Ci Pian mechanism 1 is stifled with front After the guide surface B61 contact of 6, hammer thorn sheet delivery device 3 is used to continue to advance, then Sheet 11 stings under the guiding of the guide surface B61 of front plug 6 around Qian Cipian mechanism 1 in Qian Cipian mechanism 1 Rotating shaft 13 rotate, and then stretch out from the axial waist hole A51 of inner fixer 5, insert the waist 5 of patient In vertebral body A, will screw out in thorn sheet delivery device 3 Ci Pian mechanism 1 in the past；By same method by rear thorn Sheet mechanism 2 sends in inner fixer 5, when the thorn sheet 21 of Hou Cipian mechanism 2 and drawing of Qian Cipian mechanism 1 After guide face A1211 contact, use hammer thorn sheet delivery device 3 to continue to advance, sting sheet the most afterwards Sheet 21 stings under the guiding of the guide surface A1211 of Qian Cipian mechanism 1 around Hou Cipian mechanism 2 in mechanism 2 Rotating shaft 23 rotate, and then stretch out from the axial waist hole B52 of inner fixer 5, insert the sacrum of patient In 1B, thorn sheet delivery device 3 is screwed out from Hou Cipian mechanism 2, rear plug 7 is sent into interior fixing In device 5 and be fixed on inner fixer 5 end；Finally, bar 4 will be implanted to revolve from inner fixer 5 Descending and extract, now inner fixer 5 one end is positioned at the waist 5 vertebral body A of patient, and the other end is positioned at patient Sacrum 1B in, inserting the thorn sheet 11 in waist 5 vertebral body A respectively can be the most anti-with the thorn sheet 21 in sacrum 1B Only waist 5 vertebral body A rotates against with sacrum 1B.

This utility model is not limited to above-mentioned preferred implementation, and anyone should learn in this practicality new The structure change made under the enlightenment of type, every have with this utility model same or like as technology Scheme, belongs to protection domain of the present utility model.

Claims (2)

1. a Ci Pian mechanism for the unidirectional barbed axial fusion internal fixation system of Wicresoft's lumbosacral spine, its feature Be: described Ci Pian mechanism is divided into Qian Cipian mechanism and Hou Cipian mechanism, Qian Cipian mechanism include sting sheet, Thorn bar and rotating shaft, thorn sheet is rotatably coupled to sting one end of bar by rotating shaft, stings bar another End is provided with spiro rod section A；Hou Cipian mechanism includes thorn sheet, thorn bar and rotating shaft, and thorn sheet is rotatable by rotating shaft Be connected to sting bar one end, thorn bar the other end be provided with spiro rod section B.

The unidirectional barbed axial fusion internal fixation system of Wicresoft the most according to claim 1 lumbosacral spine Ci Pian mechanism, is characterized in that: the end of the spiro rod section A of the thorn bar of described Qian Cipian mechanism is provided with and can draw The guide surface that the thorn sheet of Dao Houcipian mechanism rotates.