CN204839691U

CN204839691U - Interspace of lumbar vertebrae instrument of strutting

Info

Publication number: CN204839691U
Application number: CN201520334489.6U
Authority: CN
Inventors: 夏天; 董双海
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-05-21
Filing date: 2015-05-21
Publication date: 2015-12-09
Anticipated expiration: 2025-05-21

Abstract

The utility model provides an interspace of lumbar vertebrae instrument of strutting, include: put into the ware, including interconnect's handle and swing arm, the bottom of swing arm is equipped with puts into the groove, two at least staples, every staple include that the adapter locates the head of a nail of putting into the inslot and be used for inserting the pin fin of establishing into the lumbar vertebra, the ware struts, including the symmetry set up and each other two articulateds the arm struts, every tail end that struts the arm has the handle, every head end that struts the arm is connected with spreader plates, two piece adjacent spreader plates fold in step or separate through strutting the arm, spreader plates is last to have the hole that struts that is used for wearing to establish the head of a nail. The utility model provides a strut the problem in intervertebral crack in the lumbar vertebrae operation to further improve the efficiency and the quality of lumbar vertebrae operation.

Description

Interspace of lumbar vertebrae strutting tool

Technical field

This utility model relates to a kind of dilator, is specifically related to a kind of dilator being adapted to intervertebral space in lumbar surgery.

Background technology

Between lumbar vertebra, fusion is the important art formula for the treatment of lumbar disease.Needing when processing interspace of lumbar vertebrae suitably to be strutted, to appear intervertebral disc better, fully processing intervertebral space, increasing fusion rate, reduce the risk of nerve root injury simultaneously, increasing operative effect and safety.

Utility model content

For overcoming the defect existing for prior art, now design a set of interspace of lumbar vertebrae strutting tool tool, the nail road utilizing pedicle screw to insert, temporary fixed nail is inserted in advance in the interspace of lumbar vertebrae adjacent vertebrae that need process, intervertebral space can be strutted as fulcrum by dilator, and improve efficiency and the quality of lumbar surgery further.

For achieving the above object, a kind of interspace of lumbar vertebrae strutting tool is provided, comprises:

Inserter, comprises interconnective handle and swing arm, and the bottom of swing arm is provided with inserts groove;

Be temporarily fixed at least two staples on adjacent lumbar vertebrae bone, each staple comprises adapter and is located at and inserts the head of a nail in groove and for plugging the ailhead into lumbar vertebra;

Dilator; comprise be symmetrical arranged and be hinged two strut arm; each tail end strutting arm has handle; each head end strutting arm is connected with distraction plate; adjacent two pieces of distraction plates extend in opposite directions and synchronously close up by strutting arm or be separated; distraction plate has and struts hole for what wear the head of a nail, each head of a nail correspondence is arranged in and struts in hole, closes up two handles and then struts adjacent two staples.

The beneficial effect of this utility model interspace of lumbar vertebrae strutting tool is,

1) insert groove by inserter, staple is efficiently fixed on lumbar vertebra;

2) accurately control closing up of distraction plate by the hinged arm that struts and be separated, and then coordinating staple to strut adjacent lumbar vertebrae bone efficiently.

Preferably, the handle of inserter is coniform, and the cone end of handle is coupling in swing arm.

Preferably, staple comprises the banking stop be socketed under the head of a nail, and banking stop is arranged in the surface of lumbar vertebra.

Preferably, two that are hinged strut arm is X-shaped, and each head end strutting arm is vertically connected with perpendicular strut, and distraction plate is vertically fixed in the bottom of perpendicular strut.

Preferably, two strut arm and are respectively first and strut arm and second and strut arm, first tail end strutting arm is connected with curved position limit arm, and position limit arm extends to the tail end that second struts arm and comprises crosses the spacing head that second struts arm, and second struts arm is limited in spacing head.

Preferably, the surface of position limit arm has latch, and spacing head comprises mutually affixed against section and grip section, and to be arranged on latch and thickness is greater than grip section against section, grip section is branched in position limit arm and stretches out, and second struts arm is limited in against section.

Accompanying drawing explanation

Fig. 1 is the structural representation that this utility model interspace of lumbar vertebrae strutting tool first implements state;

Fig. 2 is the planar structure schematic diagram of dilator in the strutting tool of this utility model interspace of lumbar vertebrae;

Fig. 3 is the structural representation that this utility model interspace of lumbar vertebrae strutting tool second implements state.

Detailed description of the invention

For the benefit of to the understanding of structure of the present utility model, be described below in conjunction with drawings and Examples.

Shown in composition graphs 1 to Fig. 3, this utility model provides a kind of interspace of lumbar vertebrae strutting tool, comprising: inserter 1, comprises interconnective handle 10 and swing arm 12, and the bottom of swing arm 12 is provided with inserts groove 14; Be temporarily fixed at least two staples 3 on adjacent lumbar vertebrae bone 2, each staple 3 comprises adapter and is located at and inserts the head of a nail 30 in groove 14 and for plugging the ailhead into lumbar vertebra 2; Dilator 4; comprise be symmetrical arranged and be hinged two strut arm; each tail end strutting arm has circular handle 42; each head end strutting arm is connected with semicircular distraction plate 43; distraction plate 43 extends in opposite directions and synchronously closes up by strutting arm or be separated; distraction plate 43 has and struts hole 44 for what wear the head of a nail 30, each head of a nail 30 correspondence is arranged in and struts in hole 44, closes up two handles 42 and then struts adjacent two staples 3.

Particularly, wherein:

As Fig. 1, the handle 10 of inserter 1 is in coniform, and the cone end of handle 10 is coaxially fixed in swing arm 12.Staple 3 comprises the banking stop 32 be socketed under the head of a nail 30, and banking stop 32 is arranged in the surface of lumbar vertebra 2.

As Fig. 2, two that are hinged strut arm is X-shaped, two strut arm and are respectively first and strut arm 40 and second and strut arm 41, first tail end strutting arm 40 is connected with curved position limit arm 45, position limit arm 45 extends to the tail end that second struts arm 41 and comprises crosses spacing 46 that second struts arm 41, and second struts arm 41 is limited in spacing 46.Comparatively preferably, the surface of position limit arm 45 has latch, comprise for spacing 46 mutually affixed against section 460 and grip section 462, to be arranged on latch and thickness is greater than grip section 462 against section 460, grip section 462 is branched in position limit arm 45 and stretches out, and second struts arm 41 is limited in against section 460.

As Fig. 3, dilator 4 is flat condition, and each head end strutting arm is vertically connected with perpendicular strut 47, and distraction plate 43 is vertically fixed in the bottom of perpendicular strut 47.

After having said structure feature, this utility model can by following implementation Process:

A. according to the screw requirement of pedicle locations in lumbar vertebra, clear the way in the vertebra that need Intervertebral space place to be processed is adjacent;

B. inserter 1 is utilized by staple 3 in inserting and fix on lumbar vertebra 2 temporarily;

C. the distraction plate 43 of dilator 4 head end is inserted in the head of a nail 30 of temporary fixed nail 3;

D. the handle 42 of dilator 4 is closed up to strut intervertebral space.

After completing above-mentioned implementation process, following characteristics of the present utility model should be able to be embodied:

1) inserter and dilator structure simply, are convenient to draw materials;

2) each device uses collocation easy, and struts successful.

Below embodiment has been described in detail this utility model by reference to the accompanying drawings, and those skilled in the art can make many variations example to this utility model according to the above description.Thus, some details in embodiment should not formed restriction of the present utility model, this utility model by the scope that defines using appended claims as protection domain.

Claims

1. an interspace of lumbar vertebrae strutting tool, is characterized in that, comprising:

Inserter, comprises interconnective handle and swing arm, and the bottom of described swing arm is provided with inserts groove;

At least two staples, each described staple comprise adapter be located at described in insert the head of a nail in groove and for plugging the ailhead into lumbar vertebra;

Dilator; comprise be symmetrical arranged and be hinged two strut arm; the tail end strutting arm described in each has handle; the head end strutting arm described in each is connected with distraction plate; strut arm described in described distraction plate passes through synchronously close up or be separated, described distraction plate has and struts hole for what wear the described head of a nail.

2. interspace of lumbar vertebrae according to claim 1 strutting tool, is characterized in that,

The described handle of described inserter is coniform, and the cone end of described handle is coupling in described swing arm.

3. interspace of lumbar vertebrae according to claim 1 strutting tool, is characterized in that,

Described staple comprises the banking stop be socketed under the described head of a nail, and described banking stop is arranged in the surface of described lumbar vertebra.

4. the interspace of lumbar vertebrae strutting tool according to claim 1 or 3, is characterized in that,

Two that are hinged strut arm is X-shaped, and the head end strutting arm described in each is vertically connected with perpendicular strut, and described distraction plate is vertically fixed in the bottom of described perpendicular strut.

5. interspace of lumbar vertebrae according to claim 4 strutting tool, is characterized in that,

Strut arm described in two to be respectively first and to strut arm and second and strut arm, described first tail end strutting arm is connected with curved position limit arm, described position limit arm extends to the tail end that described second struts arm and comprises crosses the spacing head that described second struts arm, and described second struts arm is limited in described spacing head.

6. interspace of lumbar vertebrae according to claim 5 strutting tool, is characterized in that,

The surface of described position limit arm has latch, described spacing head comprises mutually affixed against section and grip section, describedly to be arranged on described latch and thickness is greater than described grip section against section, described grip section is branched in described position limit arm and stretches out, and described second struts arm is limited in described against section.