CN207575190U - The cutter of minimally invasive bone tissue surgical apparatus - Google Patents
The cutter of minimally invasive bone tissue surgical apparatus Download PDFInfo
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- CN207575190U CN207575190U CN201720276927.7U CN201720276927U CN207575190U CN 207575190 U CN207575190 U CN 207575190U CN 201720276927 U CN201720276927 U CN 201720276927U CN 207575190 U CN207575190 U CN 207575190U
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- cutter
- bone tissue
- cutter head
- minimally invasive
- surgical apparatus
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Abstract
The utility model provides a kind of cutter of minimally invasive bone tissue surgical apparatus, and the cutter of the minimally invasive bone tissue surgical apparatus includes cutter head and helical feed portion；The helical feed portion is connected to cutter head rear, for conveying the bone tissue cut down.Use the minimally invasive bone tissue surgical apparatus of the utility model cutter, it only needs small skin incision and small bone window, it is transmitted again through screw channel after cancellous bone is cut (or grinding) skeletonization bits, realize the sclerotin orientation transmission of cutting (or grinding), it is easy to operate, quick, it substantially reduces bone and cuts the injury caused by patient in surgical procedure, avoid the generation of sequelae, improve the safety of operation.
Description
Technical field
The utility model is related to a kind of medical instrument, more particularly to a kind of cutter of minimally invasive bone tissue surgical apparatus.
Background technology
Bone grafting operation is that bone tissue is transplanted to the skeleton defect that needs to strengthen in patient body or merge by operation, often
Situations such as rear cavity filling, backbone and joint fusion being struck off for bony defect, nonunion, osteopathy or bone tumour.
Clinically used autologous bone transplanting have the advantages that it is more, as histocompatbility is good, is lured without graft-rejection, bone
It leads that effect is stronger etc., there is the good effect for promoting bone fusion.Autologous bone transplanting is common take bony site include ilium, shin bone,
The positions such as upper segment of fibula and rib cage, autologous bone transplanting are exactly to take off the sclerotin at patient these positions on one's body, using
Processing returns to the bony defect position for being transplanted to patient.For being derived from body Iliac Bone Grafts, need to usually it make at present up to several centimeters
Skin soft tissue notch and relatively broad subperiosteum stripping, then by osteotome ilium uplifting window or directly chisel take ilium
Bone.
However bone method is taken using this, during ilium is cut, there can be higher nervus cutaneus femoris lateralis damage
Generation, so as to cause outside area numbness before patient upper leg, pain, burn or the generation of the swollen sense of acid.The bone block cut is bigger, phase
The notch answered is bigger, then the incidence of neurotrosis is higher.In addition also easily occur Qu Gu areas pain, Qu Gu areas fracture, hemotoncus,
Infection, laparacele and ilioinguinal nerve damage.
Utility model content
For the utility model in order to overcome at least one deficiency of the prior art, it is larger to solve original operation method notch, and
And the technical issues of easily being damaged to patient, easily leaving sequelae, a kind of cutter of minimally invasive bone tissue surgical apparatus is provided,
Small skin incision and small bone window are only needed, cancellous bone is cut into after bone bits again through transmitting screw channel transmission, is realized pair
The sclerotin that cutting (or grinding) is got off is oriented transmission, and easy to operate, surgical procedure is quick, can substantially reduce in surgical procedure
Injury, reduces the generation of sequelae, improves the purpose of the safety of operation caused by patient.
To achieve these goals, the utility model uses following technical scheme：
The cutter of minimally invasive bone tissue surgical apparatus, including cutter head and helical feed portion；The helical feed portion is connected to knife
Head rear, for conveying or cutting and convey bone tissue.
Further, as a kind of embodiment of the utility model, in the utility model one embodiment, the cutter head
Sclerotin contact surface with bone tissue is passivity contact surface.
Further, as a kind of embodiment of the utility model, in the utility model one embodiment, the cutter head
It is blunt nosed for what is do not put the first edge on a knife or a pair of scissors.
Further, as a kind of embodiment of the utility model, in the utility model one embodiment, the cutter head
For do not put the first edge on a knife or a pair of scissors it is blunt nosed when, using helical feed portion leading portion cut bone tissue, helical feed portion front end is at cutter head, at least
One helical blade that can cut bone tissue is set.
Further, as a kind of embodiment of the utility model, in the utility model one embodiment, the cutter head
Surface be shiny surface or frosting.
Further, as a kind of embodiment of the utility model, in the utility model one embodiment, the cutter head
Equipped with blade, cutter head end center is dull face.
Further, as a kind of embodiment of the utility model, in the utility model one embodiment, the cutter head
Equipped with blade, blade is shallow blade or non-sharp keen cutting edge.
The surface of the helical feed portion is equipped with external screw thread.Specifically, for vivider characterization in the utility model, it will
The external thread structure is refined as multiple helical blades and helical blade and helicla flute.The helical feed portion is equipped with multiple spirals
Blade forms helicla flute between helical blade and helical feed portion main body.
Further, the screw pitch of the helical feed portion is 1-30mm.
Further, the helical angle of the helical feed portion is 10-89 °.
Further, as a kind of embodiment of the utility model, in the utility model one embodiment, the spiral
First helical blade of the delivery section close to cutter head position is connected with cutter head.
Further, as a kind of embodiment of the utility model, in the utility model one embodiment, the spiral
Delivery section has certain distance close to first of cutter head position between helical blade and cutter head, the distance can ensure to remove
Bone tissue smoothly conveyed backward along the helicla flute of helical feed portion.
Compared with prior art, the utility model has the following advantages：
Use the basic functional principle of the minimally invasive bone tissue surgical apparatus of the utility model cutter：It is driven by motor (or pneumatic)
Cutter is rotated into Autogenous Cancellous Bone Graft, blends cancellous bone, and the cancellous bone then blended is realized by the screw conveyor of cutter
The sclerotin to get off to cutting (or grinding) is oriented transmitting function.
Specific operation process：A mini-incision is done in operative site skin first, such as ilium, shin bone both ends etc., then
In operative site using hole making drill (or drill bit) is punctured in cortex bone trepanning, then the minimally invasive bone tissue of the utility model is performed the operation
Equipment cutter head is stretched into hole, opens minimally invasive bone tissue surgical apparatus, cutter cutting (or mill under the driving of motor (or pneumatic)
Cut) helical feed portion that is connected below by cutter head of sclerotin, the graininess cut or the sclerotin of pureed carries out slewing transmission,
Minimally invasive bone tissue surgical apparatus is closed after meeting the amount of needs, extracts cutter head, the graininess of directional transmissions or the sclerotin of pureed, it can
It collects, performs the operation for the autologous bone graft of patient in different ways.Using the abutment sleeve and knife of the thin diameter of the utility model
Head can cut cancellous bone bone under mini-incision (or grinding), and operation wound is small, good operation effect.
It is operated using the utility model, tiny (the cutter head head diameter of head end of minimally invasive bone tissue surgical apparatus
Several millimeters), a small skin incision and micro- is only needed convenient for carrying out Minimally Invasive Surgery operation under mini-incision, with patient
Sclerotin is cut (or grinding) into the broken sclerotin of graininess or pureed, passes through the helical feed portion being connect with cutter head by small bone window
Carry out slewing transmission.Different collection modes can be used, perform the operation for autologous bone graft.Operate that quick, convenient, wound is small,
Good operation effect.Small operative incision substantially reduces the risk of nervus cutaneus femoris lateralis damage, reduces pain, the fracture of field of operation
With the incidence of laparacele, it is greatly reduced the postoperative infection rate of operative site.The minimally invasive bone tissue surgical apparatus of the utility model,
It is easy to operate, it is time saving and energy saving, valuable operating time is saved, great convenience is brought for clinical operation operation.
Above and other objects, features and advantages to allow the utility model can be clearer and more comprehensible, preferable reality cited below particularly
Example is applied, and coordinates attached drawing, is described in detail below.
Description of the drawings
Fig. 1 is the structure diagram using the minimally invasive bone tissue surgical apparatus of the utility model cutter.
Fig. 2 is the cutter structure schematic diagram of minimally invasive bone tissue surgical apparatus in the utility model one embodiment.
Fig. 3 is the cutter structure schematic diagram of minimally invasive bone tissue surgical apparatus in the utility model embodiment 1.
Fig. 4 is the cutter head structure schematic diagram of minimally invasive bone tissue surgical apparatus cutter in the utility model embodiment 2.
Fig. 5 is the cutter head structure schematic diagram of minimally invasive bone tissue surgical apparatus cutter in the utility model embodiment 3.
Fig. 6 is the cutter head structure schematic diagram of minimally invasive bone tissue surgical apparatus cutter in the utility model embodiment 4.
Fig. 7 is the cutter head structure schematic diagram of minimally invasive bone tissue surgical apparatus cutter in the utility model embodiment 5.
Fig. 8 is the cutter head structure schematic diagram of minimally invasive bone tissue surgical apparatus cutter in the utility model embodiment 6.
Fig. 9 is the cutter head structure schematic diagram of minimally invasive bone tissue surgical apparatus cutter in the utility model embodiment 7.
Figure 10 is the cutter head structure schematic diagram of minimally invasive bone tissue surgical apparatus cutter in the utility model embodiment 8.
Specific embodiment
Fig. 1 is the structure diagram using the minimally invasive bone tissue surgical apparatus of the utility model cutter.As shown in Figure 1, this
The cutter of utility model is used for minimally invasive bone tissue surgical apparatus.Fig. 2 is minimally invasive bone tissue hand in the utility model one embodiment
The cutter structure schematic diagram of art equipment.Fig. 3 is the cutter head structure schematic diagram of cutter in Fig. 2.With reference to Fig. 2 and Fig. 3 it is found that this practicality
Novel cutter 1 includes cutter head 11 and helical feed portion 12.
The cutter head 11 primarily serves the effect that guiding cutter gos deep into bone tissue, and cutter head 11 can be bistrique or drill bit etc..
Cutter head 11 can be that not putting the first edge on a knife or a pair of scissors for minor diameter is blunt nosed, can also be provided with multiple blades.
Shape and the surface characteristic design of cutter head 11 can carry out different designs as needed.In the utility model, knife
First 11 in order to be better achieved circumgyration incision, and the shape of cutter head is mostly central symmetry shape.Specifically, tip shapes can select ball
Shape, elliposoidal, umbellate form, hemispherical, semielliptical shape, hemispherical+cylinder, semielliptical shape+cylinder, taper or cylinder and its
He is contacted with sclerotin as passivity contact surface cutter head.
If width one of the cutter head 11 for the widest part of blunt nosed, the proper blunt nosed cross section of not putting the first edge on a knife or a pair of scissors of minor diameter
As be 1.2-15mm.
It can also be frosting that the surface of cutter head 11, which can be shiny surface,.
Cutter head 11 can also be equipped with blade, the blade can centered on symmetrical spiral cutting edge, or cutter head table
The chisel edge of the irregular setting in face indulges sword, inclined edge etc..The blade of cutter head 11 can be straight-tooth, helical tooth or helical teeth.To avoid damaging
Hinder osteoderm matter, preferably shallow blade or non-sharp keen cutting edge when blade is set.
Helical feed portion 12 is arranged on 11 rear of cutter head, coaxial with cutter head 11.Fig. 2 is in the utility model one embodiment
The cutter structure schematic diagram of minimally invasive bone tissue surgical apparatus.As shown in Fig. 2, the helical feed portion 12 is more in being equipped with for cutter 1
A helical blade 121 forms multiple helicla flutes 122.The cancellous bone that cutter head 11 is got is conveyed backward by helical feed portion 12.Spiral shell
Revolving the length of the spiral of delivery section 12 can be set according to actual needs.
When cutter head 11 puts the first edge on a knife or a pair of scissors, helical feed portion 12 mainly undertakes the transportation work of the bone tissue after cutting.And work as cutter head
11 be do not put the first edge on a knife or a pair of scissors it is blunt nosed when, the cutting of bone tissue relies primarily on helical feed portion 12 to complete, and 12 front end of helical feed portion is leaned on
At nearly cutter head 11, a helical blade 121 that can cut bone tissue is at least set.
First helical blade 121 of the helical feed portion 12 close to cutter head position is connected with cutter head 11 or the spiral transferring
It send portion that there is certain distance between first helical blade 121 and cutter head 11 at cutter head position, and sets appropriately distance
It can ensure that the bone tissue removed smoothly conveys backward along the helicla flute 122 of helical feed portion 12.
In the present embodiment, 121 thickness of helical blade of helical feed portion 12 is smaller, and the groove width of helicla flute 122 is larger.It removes
Bone tissue conveyed by helicla flute 122.
Specifically, cancellous bone is rubbed in the rotation of cutter head 11 of the utility model, helical feed portion 12 rearward passes cancellous bone
It passs.When helical feed portion 12 rotates, due to the cell wall of the helicla flute 122 of the gravity and material and helical feed portion 12 of material
With 2 inner wall of abutment sleeve caused by frictional force so that material can only be under the push of helical blade 121 along helicla flute 122
Slot bottom move backward.Material relies primarily on the thrust of the material to advance below, therefore material is in spiral in the transport of interlude
The transport of the transfer passage of delivery section 12 is a kind of sliding motion.The helical blade 121 of rotation conveys material passage,
And material is not as helical blade 121 rotates together, the crucial gravity for being material itself and abutment sleeve 2 are to material
Frictional force and the buffer brake that squeezes cancellous bone when pushing ahead of cutter 1.
Above-mentioned material and the material that may hereafter mention are the cancellous bone that the cutter of minimally invasive bone tissue surgical apparatus obtains.
To realize the timely transmission of material, the utility model is by experimental results demonstrate the screw pitch of helical feed portion 12 is
1-30mm, helical angle are 10 ° -89 °.
Embodiment 1
Fig. 3 is the cutter structure schematic diagram of minimally invasive bone tissue surgical apparatus in the utility model embodiment 1.As shown in figure 3,
The present embodiment cutter head does not put the first edge on a knife or a pair of scissors, and tool bit diameter is smaller, identical or smaller with the base diameter of helical feed portion.Helical feed portion
On the contrary, since cutter head does not put the first edge on a knife or a pair of scissors in the present embodiment, at this time using the of helical feed portion in the direction of rotation of helical blade and Fig. 2
One of helical blade realizes the cutting to bone tissue.
Embodiment 2
Fig. 4 is the cutter head structure schematic diagram of cutter in the utility model embodiment 2.Cutter head 11 is provided with multiple spiral cutting edges
111, each spiral cutting edge 111 does not reach the center of 11 end face of cutter head.I.e. 11 end center of cutter head is dull face, is not opened
Sword.This important practical novel point of point for the utility model, cutter head, which puts the first edge on a knife or a pair of scissors, not to be opened to the center of 11 end of cutter head, in this way
It can ensure that 11 end of cutter head is equipped with the dull face of certain size size so that cutter has protection cortex bone in surgical procedure
The effect not being pierced.
The front end of the spiral cutting edge 111 of cutter head 11 is acute angle.The characteristics of the utility model is performed the operation for autologous bone transplanting,
Cutter head 11 is the cutter head of minor diameter.The front end of spiral cutting edge 111 is full acute angle, can ensure 11 end of cutter head to bone pine in this way
Matter has certain puncture ability.Cancellous bone is much larger than, therefore cutter can in surgical procedure however, as the hardness of cortex bone
It is performed the operation with penetrating cancellous bone, while ensures that cortex bone will not be penetrated again.
Embodiment 3
Fig. 5 is the cutter head structure schematic diagram of the cutter of minimally invasive bone tissue surgical apparatus in the utility model embodiment 3.Such as figure
Shown in 5, the shape of the present embodiment cutter head is spheroidal, and cutter head is provided with multiple spiral cutting edges, and the spiral cutting edge is inclined edge, often
A spiral cutting edge does not reach the center of cutter head end face.
Embodiment 4
Fig. 6 is the cutter head structure schematic diagram of the cutter of minimally invasive bone tissue surgical apparatus in the utility model embodiment 4.Such as figure
Shown in 6, the shape of the present embodiment cutter head is approximate elliposoidal, and cutter head is provided with single blade, and the blade is longitudinally disposed.Cutter head
Front end and other in the face that bone tissue is in contact be passivity contact surface.
Embodiment 5
Fig. 7 is the cutter head structure schematic diagram of the cutter of minimally invasive bone tissue surgical apparatus in the utility model embodiment 5.Such as figure
Shown in 7, the shape of the present embodiment cutter head is spheroidal, is not put the first edge on a knife or a pair of scissors, surface can be coarse frosting, or smooth
Face.Tool bit diameter is smaller compared with the cutter head that puts the first edge on a knife or a pair of scissors of same type.
Embodiment 6
Fig. 8 is the cutter head structure schematic diagram of the cutter of minimally invasive bone tissue surgical apparatus in the utility model embodiment 6.Such as figure
Shown in 8, to be near cylindrical, bit interface is equipped with multiple blades for the shape of the present embodiment cutter head, and the blade is straight sword, each knife
Sword does not reach the center of cutter head end face.
Embodiment 7
Fig. 9 is the cutter head structure schematic diagram of the cutter of minimally invasive bone tissue surgical apparatus in the utility model embodiment 7.This reality
The shape for applying a cutter head is cylinder, and bit interface is equipped with multiple blades, and the blade is non-pointed cutting edge.
Embodiment 8
Figure 10 is the cutter head structure schematic diagram of the cutter of minimally invasive bone tissue surgical apparatus in the utility model embodiment 8.This
The shape of embodiment cutter head is cylinder, is not put the first edge on a knife or a pair of scissors.Surface can be coarse frosting, or shiny surface.
Although the utility model is disclosed above by preferred embodiment, the utility model is not limited to, it is any
This known those skilled in the art, without departing from the spirit and scope of the utility model, can make some changes and embellishment, therefore this practicality
Novel protection domain is when subject to claims range claimed.
Claims (10)
1. the cutter of minimally invasive bone tissue surgical apparatus, which is characterized in that the cutter of the minimally invasive bone tissue surgical apparatus includes knife
Head and helical feed portion；The helical feed portion is connected to cutter head rear, for conveying or cutting and convey bone tissue.
2. the cutter of minimally invasive bone tissue surgical apparatus according to claim 1, which is characterized in that the cutter head and bone tissue
Sclerotin contact surface be passivity contact surface.
3. the cutter of minimally invasive bone tissue surgical apparatus according to claim 1, which is characterized in that the cutter head is does not put the first edge on a knife or a pair of scissors
It is blunt nosed.
4. the cutter of minimally invasive bone tissue surgical apparatus according to claim 3, which is characterized in that the cutter utilizes spiral
The leading portion cutting bone tissue of delivery section, at cutter head, bone tissue can be cut by least setting one for helical feed portion front end
Helical blade.
5. the cutter of minimally invasive bone tissue surgical apparatus according to claim 1, which is characterized in that the surface of the cutter head is
Shiny surface or frosting.
6. the cutter of minimally invasive bone tissue surgical apparatus according to claim 1, which is characterized in that the cutter head is equipped with knife
Sword, cutter head end center are dull face.
7. the cutter of minimally invasive bone tissue surgical apparatus according to claim 1, which is characterized in that the cutter head is equipped with knife
Sword, blade are shallow blade or non-sharp keen cutting edge.
8. the cutter of minimally invasive bone tissue surgical apparatus according to claim 1, which is characterized in that the helical feed portion is set
There are multiple helical blades, helicla flute is formed between helical blade and helical feed portion main body.
9. the cutter of minimally invasive bone tissue surgical apparatus according to claim 1, which is characterized in that the helical feed portion is leaned on
First helical blade at nearly cutter head position is connected with cutter head.
10. the cutter of minimally invasive bone tissue surgical apparatus according to claim 8, which is characterized in that the helical feed portion
First close to cutter head position has certain distance between helical blade and cutter head, the distance can ensure the bone group removed
It knits and is smoothly conveyed backward along the helicla flute of helical feed portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720276927.7U CN207575190U (en) | 2017-03-21 | 2017-03-21 | The cutter of minimally invasive bone tissue surgical apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720276927.7U CN207575190U (en) | 2017-03-21 | 2017-03-21 | The cutter of minimally invasive bone tissue surgical apparatus |
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| Publication Number | Publication Date |
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| CN207575190U true CN207575190U (en) | 2018-07-06 |
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ID=62717136
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| CN201720276927.7U Active CN207575190U (en) | 2017-03-21 | 2017-03-21 | The cutter of minimally invasive bone tissue surgical apparatus |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108618824A (en) * | 2017-03-21 | 2018-10-09 | 浙江复润医疗科技有限公司 | The cutter of minimally invasive bone tissue surgical apparatus |
| CN108720957A (en) * | 2018-06-15 | 2018-11-02 | 吉林大学 | Animal for research vertebral plate removes assistor |
-
2017
- 2017-03-21 CN CN201720276927.7U patent/CN207575190U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108618824A (en) * | 2017-03-21 | 2018-10-09 | 浙江复润医疗科技有限公司 | The cutter of minimally invasive bone tissue surgical apparatus |
| CN108720957A (en) * | 2018-06-15 | 2018-11-02 | 吉林大学 | Animal for research vertebral plate removes assistor |
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