CN206333942U - A kind of femur front ankle bone cutting is with reference to locator - Google Patents

Abstract

The utility model is related to technical field of medical instruments, more particularly to a kind of femur front ankle bone cutting being used in minimally invasive knee surgery with reference to locator.The femur front ankle bone cutting is with reference to locator, including guider, measurement probe pen and fix bar, bayonet socket is additionally provided with the guider, one end of the fix bar is through the guider and stretches into the bayonet socket, and the fix bar can be moved relative to the fixator, to adjust the length that the fix bar is stretched into the bayonet socket, the measurement probe pen includes handwriting and bending part, the handwriting passes through the guider, and the bending part is arranged on the front end of the handwriting.Allow to be accurately positioned osteotomy site during femur front ankle bone cutting, reduction deviations cause the risk of osteotomy mistake.

Description

A kind of femur front ankle bone cutting is with reference to locator

Technical field

The utility model is related to technical field of medical instruments, more particularly to a kind of femur being used in minimally invasive knee surgery Front ankle bone cutting is with reference to locator.

Background technology

Current knee prosthesis is the most effectual way for treating late period Osteoarthritis.During joint replacement is carried out, Osteotomy is the premise of successful surgery in accurate art, and a point tolerance is likely to cause osteotomy mistake, increases the risk of operation.Art Middle osteotomy with reference to operating theater instruments position complete, therefore success of the joint replacement surgery apparatus to operation play it is vital Effect.

The plane of cortex of bone formation in front of femur front ankle bone cutting plane and femur is required in femur front ankle bone cutting as far as possible Coincide, it is too high can cause to fit between prosthese and osteotomy surface it is bad, it is too low so as to influence the fixing intensity of prosthese, stock occurs Bone frontal cortex is recessed, and increases the risk of Periprosthetic fracture.

At present, it is the clinical experience by doctor mostly, and utilize femur size measuring appliance when carrying out femur front ankle bone cutting Positioned, it is necessary to doctor has more rich clinical experience, and error easily occurs, cause repeated work, or even operation Failure.

Utility model content

(1) technical problem to be solved

The purpose of this utility model is to provide a kind of femur front ankle bone cutting with reference to locator, when realizing front ankle bone cutting before femur Condyle osteotomy site is accurately positioned, it is to avoid deviations, so as to reduce the risk for causing osteotomy mistake.

(2) technical scheme

In order to solve the above-mentioned technical problem, the utility model provides a kind of femur front ankle bone cutting with reference to locator, including：

Bayonet socket is additionally provided with guider, the guider；

Probe pen is measured, the measurement probe pen includes handwriting and bending part, and the handwriting passes through the guider, the bending Portion is arranged on the front end of the handwriting；

Fix bar, one end of the fix bar passes through the guider and stretches into the bayonet socket, and the fix bar can Relative to fixator movement, to adjust the length that the fix bar is stretched into the bayonet socket.

Preferably, also including sleeve pipe, described sleeve pipe is fixed on the guider, and the fix bar is stretched through described sleeve pipe Enter the bayonet socket.

Preferably, the rear end of described sleeve pipe is provided with fixed part, and the fixed part is provided with internal thread, the fix bar and set There is the external screw thread being engaged with the internal thread, and the fixed part is stretched out in the rear end of the fix bar.

Preferably, the rear end of the fix bar is provided with the first Handheld Division.

Preferably, anti-slip veins are provided with the outside of the Handheld Division.

Preferably, it is described measurement probe pen can relatively described guider move forward and backward.

Preferably, the relative side of the handwriting at least two is planar structure, prevents that the relatively described guider of handwriting from turning It is dynamic.

Preferably, it is provided with the handwriting in chute, the guider and sets the sliding block being engaged with the chute.

Preferably, the rear end of the handwriting is provided with the second Handheld Division.

(3) beneficial effect

Above-mentioned technical proposal of the present utility model has the following advantages that：The femur front ankle bone cutting reference that the utility model is provided Bayonet socket is additionally provided with locator, including guider, measurement probe pen and fix bar, the guider, one end of the fix bar is worn Cross the guider and stretch into the bayonet socket, and the fix bar can be moved relative to the fixator, to adjust the fixation The length that bar is stretched into the bayonet socket, the measurement probe pen includes handwriting and bending part, and the handwriting passes through the guider, institute State the front end that bending part is arranged on the handwriting.Allow to be accurately positioned femur front ankle bone cutting position during front ankle bone cutting, it is to avoid fixed Position deviation causes the risk of osteotomy mistake.

Brief description of the drawings

Fig. 1 is the utility model embodiment femur front ankle bone cutting with reference to locator positive structure diagram；

Fig. 2 is Fig. 1 A-A sectional views；

Fig. 3 is structural representation of the utility model embodiment femur front ankle bone cutting with reference to another angle of locator；

Fig. 4 is the utility model embodiment femur front ankle bone cutting with reference to locator use state schematic diagram.

In figure：1：Guider；11：Bayonet socket；12：Sliding block；2：Measure probe pen；21：Bending part；22：Handwriting；23：Second-hand Hold portion；31：Fix bar；32：Sleeve pipe；33：Fixed part；34：First Handheld Division；4：Femur size measuring appliance；41：Osteotomy module is consolidated Fixed place；5：Measuring appliance fixture.

Embodiment

It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer Accompanying drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that retouched The embodiment stated is a part of embodiment of the present utility model, rather than whole embodiments.Based on the reality in the utility model Apply example, the every other embodiment that those of ordinary skill in the art are obtained on the premise of creative work is not made, all Belong to the scope of the utility model protection.

Front end in the utility model, rear end are so that the location of used time each portion is defined, to be for only for ease of Describe the utility model and simplify to describe, rather than indicate or imply signified device or element must have specific orientation, With specific azimuth configuration and operation, specifically, one end of front end middle finger distal end user, rear end refers to one close to user End.

It is shown as shown in Figure 1, Figure 3 and Figure 4, the femur front ankle bone cutting reference locator that the utility model embodiment is provided, including Guider 1, measurement probe pen 2 and fix bar 31, wherein, guider 1 is provided with bayonet socket 11, for matching somebody with somebody with femur size measuring appliance 4 Close.

Measurement probe pen 2 includes handwriting 22 and is arranged on the bending part 21 of the front end of handwriting 22, and handwriting 22 is worn out of guider 1 Cross, bending part 21 is arranged on the front end of handwriting 22, and the bending part 21 is downward bending, the depth of Osteotomy is treated for detecting Degree.

Fix bar 31 is through guider 1 and stretches into bayonet socket 11, and can adjust the depth that fix bar 31 is stretched into bayonet socket 11 Degree, for femur front ankle bone cutting to be fixed in femur size measuring appliance 4 with reference to locator.

Specifically, sleeve pipe 32 is additionally provided with guider 1, and the sleeve pipe 32 is fixed on guider 1, fix bar 31 passes through set Stretched into after pipe 32 in bayonet socket 11, sleeve pipe 32 and the one of guider 1 are fixed, i.e., can not be relatively moved when normally using.Fix bar 31 Stretch into sleeve pipe 32 and facing sleeve 32 is moved.It should be noted that the mode that sleeve pipe 32 is fixed with guider 1 can have a lot Kind, for example, can extend into via fixed, or be welded on outside guider 1, and be coaxially disposed with via, or with guider 1 Integrative-structure.

Further, the rear end of sleeve pipe 32, which is provided with fixed part 33, fixed part 33, is provided with internal thread, and fix bar 31 is provided with The external screw thread being engaged with internal thread, and fixed part 33 is stretched out in the rear end of fix bar 31, facilitates rotating fixing rod 31.

Preferably, the diameter with diameter greater than sleeve pipe 32 of the fixed part 33, and be coaxially disposed with sleeve pipe 32.

In order to further facilitate rotating fixing rod 31, first Handheld Division 34 is set in the rear end of fix bar 31, it is preferable that First Handheld Division 34 with diameter greater than fix bar 31, and the first Handheld Division 31 is provided with anti-slip veins, is easy to user to operate, more excellent Selection of land, the outside of fixed part 33 also is provided with anti-slip veins.

In Clinical practice, due to human body difference, the shape of femur has certain difference, in order to improve femur osteotomy reference The versatility and practicality of locator, it is preferable that measurement probe pen 2 can be oppositely oriented device 1 and move forward and backward.

Further, hand-held for convenience and traverse measurement probe pen 2, it is preferable that as shown in figures 1 and 3, in handwriting 22 Rear end is provided with the second Handheld Division 23, further, and the outside of the second Handheld Division 23 is provided with anti-slip veins.

In order to prevent that measurement probe pen 2 from rotating in use, further, in handwriting 22 at least two it is relative Side be planar structure, prevent handwriting 22 relative to rotating in the vias.

It should be noted that the mode that measurement probe pen 2 is oppositely oriented the movement before and after device 1 there are many kinds, specifically, such as scheme Shown in 2, chute 221 is set in handwriting 22, the sliding block 12 being engaged with chute 221 is set in the via of guider 1.It is preferred that Ground, chute 221 is arranged on the planar side of handwriting 22, it is highly preferred that being respectively provided with chute 221 in two relative planar sides, is leading The corresponding setting sliding block 12 into device 1.

At present in femur front ankle bone cutting, femur measuring appliance fixed position is utilized according to doctors experience, then by osteotomy mould Block (not shown) is fixed on osteotomy module bearing 41.Specifically, osteotomy module bearing 41, which is included in, to move up and down Column structure, and two gear blocks on column structure are set, had and the phase of osteotomy module bearing 41 in osteotomy module The fixation bayonet socket of cooperation, bayonet socket 11 of the present utility model is identical with the fixation bayonet socket of osteotomy module.

Femur front ankle bone cutting reference locator of the present utility model is when in use, specific as shown in figure 4, solid using measuring appliance Determine part 5 femur size measuring appliance 4 is fixed on femur, there is femur front ankle bone cutting to pass through card with reference to locator the utility model Mouth 11 is fixed in osteotomy module bearing 41, and utilizes the clamping of fix bar 31.And above-mentioned osteotomy module bearing 41 can on Lower movement, adjusts osteotomy module bearing 41 up and down, and the groove of femur is detected using the bending part 21 for measuring probe pen 2, and spy is arrived During bosom, fixed osteotomy module bearing 41, now positioning is completed, and femur front ankle bone cutting is removed with reference to locator, will be cut Bone module fixes osteotomy module bearing 41, and now the osteotomy groove in osteotomy module and the nib portion of measurement probe pen 2 before are located at Approximately the same plane, or slightly less than plane where nib portion, to avoid skin before front ankle bone cutting plane occurs with cortex on front side of femur Matter is recessed.

In summary, the femur front ankle bone cutting that the utility model is provided with reference to locator, including guider, measurement probe pen and Fix bar, femur front ankle bone cutting is fixed on femur size measuring appliance by it using fix bar and guide post with reference to locator, and Osteotomy depth is measured using probe pen is measured, femur front ankle bone cutting position is accurately positioned, it is to avoid deviations cause osteotomy mistake Risk.

Finally it should be noted that：Above example is only to illustrate the technical solution of the utility model, rather than its limitations； Although the utility model is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that： It can still modify to the technical scheme described in foregoing embodiments, or to which part technical characteristic progress etc. With replacement；And these modifications or replacement, the essence of appropriate technical solution is departed from each embodiment technology of the utility model The spirit and scope of scheme.

Claims (9)

1. a kind of femur front ankle bone cutting is with reference to locator, it is characterised in that including：

Bayonet socket is additionally provided with guider, the guider；

Probe pen is measured, the measurement probe pen includes handwriting and bending part, and the handwriting passes through the guider, and the bending part is set Put in the front end of the handwriting；

Fix bar, one end of the fix bar passes through the guider and stretches into the bayonet socket, and the fix bar can be relative The fixator movement, to adjust the length that the fix bar is stretched into the bayonet socket.

2. femur front ankle bone cutting according to claim 1 is with reference to locator, it is characterised in that：Also include sleeve pipe, the set Pipe is fixed on the guider, and the fix bar stretches into the bayonet socket through described sleeve pipe.

3. femur front ankle bone cutting according to claim 2 is with reference to locator, it is characterised in that：The rear end of described sleeve pipe is provided with Fixed part, and the fixed part is provided with internal thread, the fix bar is provided with the external screw thread being engaged with the internal thread, and institute The fixed part is stretched out in the rear end for stating fix bar.

4. femur front ankle bone cutting according to claim 3 is with reference to locator, it is characterised in that：The rear end of the fix bar is set There is the first Handheld Division.

5. femur front ankle bone cutting according to claim 4 is with reference to locator, it is characterised in that：It is provided with the outside of the Handheld Division Anti-slip veins.

6. femur front ankle bone cutting according to claim 1 is with reference to locator, it is characterised in that：The measurement probe pen being capable of phase It is movable to the guider.

7. femur front ankle bone cutting according to claim 6 is with reference to locator, it is characterised in that：The phase of handwriting at least two To side be planar structure, prevent that handwriting from rotating relative to the guider.

8. femur front ankle bone cutting according to claim 7 is with reference to locator, it is characterised in that：Provided with cunning in the handwriting The sliding block being engaged with the chute is set in groove, the guider.

9. the femur front ankle bone cutting according to claim any one of 1-8 is with reference to locator, it is characterised in that：The handwriting Rear end be provided with the second Handheld Division.