CN209285849U - A kind of particulate cancellous bone bone grafting instrument - Google Patents

Abstract

The utility model provides a kind of particulate cancellous bone bone grafting instrument, including guide-localization part, for materials and parts and packing element；The guide-localization part is made of one piece by guide sleeve and locator, and described to be made of one piece for materials and parts by equal diameter pipe and aggregate container, the packing element tamps hammer by push-and-pull inner core and aggregate and is made of one piece.Novel particle bone bone grafting instrument designed by the utility model is simple in sturcture, ingenious in design, when bone grafting for tibial plateau compression fracture, precise positioning before can be realized bone grafting guarantees bone grafting safety, simplifies, efficiently, greatly shortens operating time, amount of bleeding is reduced, infection risk is reduced.

Description

A kind of particulate cancellous bone bone grafting instrument

Technical field

The utility model belongs to Orthopedic operation assist device tool technical field, and in particular to a kind of particulate cancellous bone bone grafting instrument.

Background technique

Bone grafting is that clinical orthopaedics doctor often uses operating technology, between filling bone defects or non-contacting independent sclerotin Space promotes union or Bony union.Difference is acted on according to bone grafting, bulk sclerotin bone grafting can be selected, i.e., usually said Structural bone graft.Another bone grafting mode be graininess bone grafting, be used for filling bone defects, rebuild support function, by osteoacusis, Self-bone grafting and ostosis effect, realize union or Bony union.

Tibial plateau compression fracture is common classification of fracture, generally requires to carry out particulate cancellous bone plant in surgical procedure Bone filling bone defects reach to collapsing the support purpose of articular surface, while playing self-bone grafting, osteoacusis, ostosis effect, promote Union.

Graininess bone grafting is at present frequently with hand operation (tweezers clamping) or simple bone grafting device, and single bone grafting amount is small, i.e., Using simple bone grafting device, there is also single loading is small, need to fill repeatedly, therefore, bone grafting operating process repeats, and causes Operating time extends, and amount of bleeding increases, and infection risk increases, and is easy to appear particulate cancellous bone and drops to around important feature, out Now compressing, excitation, abrasion symptom, or cause the complication such as ectopic ossification.Although there are many bone grafting apparatus at present, can not expire The safe and efficient clinical needs of foot.

Existing bone grafting means are utilized since bone grafting site location is very hidden for compression fracture on rear side of tibial plateau Bone grafting is carried out with bone grafting equipment, is unfavorable for being positioned during bone grafting, causes bone grafting to deviate bone defect region, at this point, not only It wastes valuable bone-grafting material and support, self-bone grafting, osteoacusis is not achieved more importantly defective region can not effectively be filled And the effect of ostosis, to bring adverse effect during later period sclerotin healing.

Utility model content

The technical problem to be solved by the utility model is in view of the above shortcomings of the prior art, provide a kind of particulate cancellous bone Bone grafting instrument, the bone grafting instrument is simple in sturcture, ingenious in design, can be accurately positioned in the case where bone grafting position is in concealed location, In bone defect region, bone grafting process safety, simplification, efficiently so as to shorten operating time, reduce amount of bleeding, reduce accurate bone grafting Infection risk.

In order to solve the above technical problems, the technical solution adopted in the utility model is: a kind of particulate cancellous bone bone grafting instrument, feature Be, including guide-localization part, for materials and parts and packing element；

The guide-localization part is made of one piece by guide sleeve and locator, the tail end and guide sleeve of the locator The outer wall of pipe connects, and the top of the locator is on the axis extended line of guide sleeve；

Described to be made of one piece for materials and parts by equal diameter pipe and aggregate container, the equal diameter pipe can be adaptedly sleeved on In guide sleeve, the aggregate entrance being connected with aggregate container is offered on the side wall of the equal diameter pipe；

The packing element is by push-and-pull inner core and tamps hammer and is made of one piece, and the push-and-pull inner core can push away in equal diameter pipe It is pull towards again, the tail end of the push-and-pull inner core is connected with hammer is tamped.

Above-mentioned a kind of particulate cancellous bone bone grafting instrument, which is characterized in that the locator is the thin of 5cm ~ 10cm by two root long degree Rod keeps 60 degree ~ 90 degree of angle to be welded.

Above-mentioned a kind of particulate cancellous bone bone grafting instrument, which is characterized in that the outer diameter of the equal diameter pipe is 8mm ~ 10mm, and wall thickness is 0.5mm~1mm。

Above-mentioned a kind of particulate cancellous bone bone grafting instrument, which is characterized in that the aggregate container is a section in inverted trapezoidal Funnel.

Compared with the prior art, the utility model has the following advantages:

1, the utility model can be realized to bone grafting position precise positioning, bone grafting, avoid particulate matter drop to it is important Structure periphery, to reduce the particulate cancellous bone compressing that occurs falling off, excitation, the risk for wearing structures surrounding.Moreover, the bone grafting Device only needs that disposably particulate cancellous bone aggregate is filled in aggregate container, has been acted using the extraction and push-in that push push-and-pull inner core It is time saving and energy saving at aggregate filling lumen, impaction bone grafting operation, it can effectively reach and shorten operating time, reduce bleeding, reduce sense The purpose for contaminating risk, reducing medical expense.

2, existing bone grafting hand is utilized since bone grafting site location is very hidden for compression fracture on rear side of tibial plateau Section and bone grafting equipment carry out bone grafting, are unfavorable for being positioned during bone grafting, cause bone grafting to deviate bone defect region, at this point, not Valuable bone-grafting material is only wasted, more importantly defective region can not effectively be filled, support, self-bone grafting, bone biography is not achieved It leads and the effect of ostosis, to bring adverse effect during later period sclerotin healing.In response to this, we are practical new at this Guide-localization part is devised in type, guide-localization part is made of one piece by guide sleeve and locator, and the utility model The top of designed locator is just fallen on the axis extended line of guide sleeve, so that the equal diameter pipe of suit in guide sleeve Afterwards, it can be realized and be accurately oriented to and position, to guarantee the precise positioning and bone grafting at bone defect position.

3, the utility model particulate cancellous bone bone grafting instrument, it is simple in sturcture, ingenious in design, bone grafting process safety, simplification, height can be made Effect reduces amount of bleeding so as to shorten operating time, reduces infection risk.

The utility model is described in further detail with reference to the accompanying drawings and examples.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model particulate cancellous bone bone grafting instrument.

Fig. 2 is the structural schematic diagram of the utility model guide-localization part.

Fig. 3 is structural schematic diagram of the utility model for materials and parts.

Fig. 4 is the structural schematic diagram of the utility model packing element.

Fig. 5 is the utility model particulate cancellous bone bone grafting instrument during the bone grafting of tibial plateau compression fracture operative treatment Use state diagram.

Specific embodiment

As shown in Figure 1, the utility model particulate cancellous bone bone grafting instrument includes guide-localization part, for three groups of materials and parts and packing element Part；

Component one, guide-localization part (as depicted in figs. 1 and 2): by guide sleeve 1-1 and locator 1-2 integrated molding At the tail end of the locator 1-2 is connect with the outer wall of guide sleeve 1-1, and the top of the locator 1-2 is in guide sleeve 1- On 1 axis extended line；

Component two, for materials and parts (as shown in figures 1 and 3): be made of one piece by equal diameter pipe 2-1 and aggregate container 2-2, The equal diameter pipe 2-1 can be adaptedly sleeved in guide sleeve 1-1, be offered on the side wall of the equal diameter pipe 2-1 and aggregate The aggregate entrance that container 2-2 is connected；

Component three, packing element (as shown in Figure 1 and Figure 4): being made of one piece by push-and-pull inner core 3-1 with hammer 3-2 is tamped, institute Stating push-and-pull inner core 3-1 can push and pull back and forth in equal diameter pipe 2-1, and the tail end and aggregate of the push-and-pull inner core 3-1 tamps hammer 3-2 and connect It connects.

The locator 1-2 is welded by the thin rod that two root long degree are 5cm ~ 10cm as a preferred technical solution, is welded 60 degree ~ 90 degree of angle is kept after connecing between two thin rods.Specific length and special angle can be more accurate realize it is accurate fixed Position and guiding, for precisely bone grafting is ready in next step.The material of thin rod, can medical, indeformable hard material without particular/special requirement Material.The thinner the diameter of thin rod the better under the premise of indeformable also without particular/special requirement, actually can using diameter 3mm ~ The thin rod of 8mm.

The outer diameter of the equal diameter pipe 2-1 is 8mm ~ 10mm as a preferred technical solution, and wall thickness is 0.5mm ~ 1mm.Equal diameter The material of pipe 2-1, can medical, indeformable hard material without particular/special requirement.

The aggregate container 2-2 is the funnel that a section is in inverted trapezoidal as a preferred technical solution,.

In conjunction with Fig. 1 to Fig. 5, the utility model introduces the use of the utility model by taking femur platform particulate cancellous bone bone grafting as an example Method (during the particulate cancellous bone bone grafting of tibial plateau compression fracture operative treatment, femur 4, shin bone 5 and bone defect position 6 Positional relationship it is as shown in Figure 5): firstly, equal diameter pipe 2-1 is sleeved in guide sleeve 1-1, then by the top of locator 1-2 Go deep into bone defect position 6, after perspective carries out guiding and positioning, particulate cancellous bone aggregate is filled in aggregate container 2-2, then Pull pushes and pulls inner core 3-1 backward, makes under the partial particulate bone aggregate in aggregate container 2-2 in leakage to the lumen of equal diameter pipe 2-1, Then hammer 3-2 is tamped using aggregate and push push-and-pull inner core 3-1 forward, push the equal intraluminal particulate cancellous bone aggregate of diameter pipe 2-1 to bone Defect 6 tamps hammer 3-2 using aggregate later, by carrying out the movement for extracting and being pushed into push-and-pull inner core 3-1 out repeatedly to implantation Particulate cancellous bone aggregate tamped, be achieved in the implantation of first aggregate.More batches of bones are finally realized according to said method repetitive operation The implantation of material, i.e. completion bone grafting.

This bone grafting instrument in use, may be implemented to avoid particulate matter to the accurate bone grafting in bone grafting position and drop to Around important feature, to reduce the particulate cancellous bone compressing that occurs falling off, excitation, the risk for wearing structures surrounding.Moreover, should Bone grafting instrument only needs that disposably particulate cancellous bone aggregate is filled in aggregate container 2, utilizes the extraction and push-in for pushing push-and-pull inner core 4 Movement complete aggregate filling lumen, impaction bone grafting operation, it is time saving and energy saving, can effectively reach shorten operating time, reduce bleeding, The purpose for reducing infection risk, reducing medical expense.

We are hidden for part bone grafting site location, such as fracture on rear side of tibial plateau, be unfavorable for during bone grafting into Row positioning, causes bone grafting to deviate bone defect region such case, we devise guide-localization part in the present invention, and it is fixed to make The top of position device 1-2 is just fallen on the axis extended line of guide sleeve 1-1, after guide sleeve 1-1 is set with equal diameter pipe 2-1, energy It is enough to realize accurately guiding and positioning, to guarantee the accurate bone grafting at bone defect position.

To sum up, the utility model particulate cancellous bone bone grafting instrument is simple in sturcture, ingenious in design, can make bone grafting process safety, simplification, Efficiently, so as to shorten operating time, amount of bleeding is reduced, reduces infection risk.

The above is only the preferred embodiment of the utility model, not imposes any restrictions to the utility model.All Factually with new technique any simple modification, change and equivalence change substantially to the above embodiments, this is still fallen within In the protection scope of utility model technical solution.

Claims (4)

1. a kind of particulate cancellous bone bone grafting instrument, which is characterized in that including guide-localization part, for materials and parts and packing element；

The guide-localization part is made of one piece by guide sleeve (1-1) and locator (1-2), the locator (1-2) Tail end is connect with the outer wall of guide sleeve (1-1), and the top of the locator (1-2) extends in the axis of guide sleeve (1-1) On line；

Described to be made of one piece for materials and parts by equal diameter pipe (2-1) and aggregate container (2-2), the equal diameter pipe (2-1) can It is adaptedly sleeved in guide sleeve (1-1), is offered on the side wall of the equal diameter pipe (2-1) and aggregate container (2-2) phase The aggregate entrance of connection；

The packing element is by push-and-pull inner core (3-1) and tamps hammer (3-2) and is made of one piece, and the push-and-pull inner core (3-1) can Push-and-pull is reciprocal in equal diameter pipe (2-1), and the tail end of push-and-pull inner core (3-1) is connect with hammer (3-2) is tamped.

2. a kind of particulate cancellous bone bone grafting instrument according to claim 1, which is characterized in that the locator (1-2) is by two root longs The thin rod that degree is 5cm ~ 10cm keeps 60 degree ~ 90 degree of angle to be welded.

3. a kind of particulate cancellous bone bone grafting instrument according to claim 1, which is characterized in that the outer diameter of the equal diameter pipe (2-1) is 8mm ~ 10mm, wall thickness are 0.5mm ~ 1mm.

4. a kind of particulate cancellous bone bone grafting instrument according to claim 1, which is characterized in that the aggregate container (2-2) is one A section is in the funnel of inverted trapezoidal.