Ultrasonic orthopaedics drilling equipmentTechnical field
The present invention relates to a kind of surgical instrument, especially relate to a kind of ultrasonic orthopaedics drilling equipment.
Background technology
In the various fixing operation of orthopaedics, usually need to install steel nail, steel plate etc. additional on skeleton, this will hole on skeleton, and existing operation method adopts the apparatuses such as high speed electric drill to realize drilling into bone.The following defect of existing boring method existing defects: 1, Electric drill-bit can only be straight, during boring, electric drill must be vertical with drilled surface of bone, causes the operating difficulties when narrow lacuna is holed like this; 2, electric drill firmly must press down propelling, could hole, and on smooth circular arc surface of bone, punching is easy to skew of skidding like this, cause bore position inaccurate, the tissue of surrounding may be damaged to, increase the danger of operation technique, increase the misery of patient, even the life of patient is threatened; 3, easily cause osseous tissue to break with Electric drill-bit, fix in senile osteoporosis, pedicle of vertebral arch, under the condition such as the microxea of comminuted fracture, boring is just difficult to realize, 4, inorganization recognition function, easily cause accidentally injuring surrounding tissue; 5, because drill bit is high speed rotating, very easily there is slippage in the more difficult control when performing the operation, the precision of bore position and size is not high, and drill bit is when high speed rotating, and bone bits and blood splash to surrounding, the visual field of impact operation, and cause trouble to the cleaning of surgical wound.
Along with the development of science and technology, ultrasonic surgical instruments is applied in surgical operation therapy more and more, operating means are enriched widely, improve operating quality, alleviate the slight illness of patient to a certain extent, but the application in bone surgery is less, especially lacks and apply in drill precise holes on skeleton.
Summary of the invention
The applicant is for above-mentioned problem, be studied improvement, a kind of ultrasonic orthopaedics drilling equipment is provided, simple and compact for structure, low cost of manufacture, easy and simple to handle, the position that skeleton is holed and dimensional accuracy high, realize multi-angle and surface of bone holed, avoid damaging tissue around, improve the safety of operation, alleviate the misery of patient.
In order to solve the problems of the technologies described above, the present invention adopts following technical scheme:
A kind of ultrasonic orthopaedics drilling equipment, comprising:
Handle, the Packed inner chamber of tool, rearward end is provided with water inlet, and front end is provided with connector;
Ultrasonic transducer, is arranged in the inner chamber of described handle;
Supersonic generator, connects described ultrasonic transducer by wire;
Horn, the described ultrasonic transducer of dismantled and assembled connection, comprises guide rod portion and operate portions, and described operate portions and described guide rod portion are that straight line arranges or is obliquely installed, and the front end face of described operate portions is identical with holed cross sectional shape;
Sleeve pipe, coaxial package is outside the guide rod portion of described horn, and the connector of the described handle that is tightly connected, leave gap between the guide rod portion of sleeve pipe and described horn.
Further:
The junction of described horn and described ultrasonic transducer is provided with ultrasonic reception induction apparatus, the ultrasonic feedback circuit of ultrasonic reception induction apparatus connection control system, ultrasonic reception induction apparatus collects the ultrasound feedback information of horn, ultrasound feedback information transmission is to the ultrasonic feedback circuit of control system, and what touched by control system identification horn is skeleton, or soft tissue around, thus control starting or stoping of ultrasonic generator by control system.
Described horn is hollow stem.
The outer surface of described operate portions is provided with the groove of distributed in grid.
Angle between the operate portions of described horn and guide rod portion is 20 ° ~ 180 °.
The connector of the described handle of the dismantled and assembled connection of described sleeve pipe.
Described ultrasonic transducer front end is provided with connection bore, and the end sleeve in the guide rod portion of described horn is contained in described connection bore, and trip bolt fixes the end in described guide rod portion through described handle.
The end surface shape of described operate portions is circular.
The end surface shape of described operate portions is square.
The end surface shape of described operate portions is star.
Technique effect of the present invention is:
The ultrasonic orthopaedics drilling equipment of one disclosed by the invention, simple and compact for structure, low cost of manufacture, easy and simple to handle, adopt ultrasound wave to realize drilling into bone, position and the dimensional accuracy of boring are high, avoid damaging tissue around, improve the safety of operation; Operate portions and the guide rod portion of horn are obliquely installed, and the horn of multiple angles realizes multi-angle and holes to surface of bone, thus makes drilling operation more convenient, and it makes orthopaedics Minimally Invasive Surgery become possibility; Adopt ultrasonic reception induction apparatus and ultrasonic feedback circuit, realize tissue identification function, avoid accidentally injuring surrounding tissue, alleviate the misery of patient.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention (operate portions of horn and guide rod portion is for being obliquely installed).
Fig. 2 is structural representation of the present invention (operate portions of horn and guide rod portion are that straight line is arranged).
Fig. 3 is the partial enlarged drawing of the operate portions of horn.
Fig. 4 is circular operate portions end view.
Fig. 5 is foursquare operate portions end view.
Fig. 6 is rectangular operate portions end view.
Fig. 7 is the operate portions end view of star.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
As shown in Fig. 1 ~ 7, the present invention includes handle 1, ultrasonic transducer 2, supersonic generator 3, ultrasonic reception induction apparatus 4, horn 5, sleeve pipe 7 and control system, the Packed inner chamber 101 of handle 1 tool hand-held during for operating, the rearward end of handle 1 is provided with water inlet 102, cooling water source can be connected at water inlet 102, for cooling of ultrasonic transducer 2 and horn 5, also flushable boring powder simultaneously; The front end of handle 1 is provided with connector 103, and ultrasonic transducer 2 is arranged in the inner chamber 101 of handle 1, and it is outer and connect ultrasonic transducer 2 by wire that supersonic generator 3 is arranged on handle.The dismantled and assembled connection ultrasonic transducer 2 of horn 5, horn 5 comprises guide rod portion 502 and operate portions 501, operate portions 501 and guide rod portion 502 arrange for straight line or are obliquely installed, the boring of different angles can be conducive to, as in Fig. 1, operate portions 501 and guide rod portion 502 are for being obliquely installed, included angle B between the operate portions 501 of usual horn 5 and guide rod portion 502 is 20 ° ~ 180 °, determine according to needing during operation, for straight line is arranged between operate portions 501 and guide rod portion 502, between operate portions 501 and guide rod portion 502, included angle B is 180 °, and its state as shown in Figure 2.Operate portions 501 and the guide rod portion 502 of horn 5 are obliquely installed, the horn 5 of multiple angles can be prepared in operation, with the suitable needs with regard to different angles boring, thus make drilling operation more convenient, the using value that the horn of this structure is maximum is to make orthopaedics Minimally Invasive Surgery become possibility, because when making endoscope-assistant surgery by this design, become possibility in narrow and small intracavity boring, this is that existing drilling into bone technology cannot be accomplished.The front end face A of operate portions 501 is close to surface of bone when holing, the front end face A of operate portions 501 is identical with holed cross sectional shape, the front end face A of operate portions 501 can be circular (as Fig. 4), square (as Fig. 5), rectangle (as Fig. 6), star (as Fig. 7), also can be other irregularly-shaped hole, determine shape according to the actual requirements.Sleeve pipe 7 coaxial package is the outer and connector 103 of the handle 1 that is tightly connected in the guide rod portion 502 of horn 5, the connector 103(of the dismantled and assembled connecting handle 1 of the present embodiment middle sleeve 7 is threaded and arranges sealing ring, prevent junction from leaking), gap is left between the guide rod portion 502 of sleeve pipe 7 and horn 5, when carrying out drilling operation, sleeve pipe 7 can intercept the guide rod portion 502 of horn 5 and the contact tissue of surrounding, avoid Accessory injury occurs, and the gap between the guide rod portion 502 of sleeve pipe 7 and horn 5 can allow cooling water pass through, horn 5 is cooled and the powder of wash boring generation, cooling water enters the inner chamber 101 of handle 1 from water inlet 102, first ultrasonic transducer 2 is wherein cooled, then pass through from the gap between sleeve pipe 7 and the guide rod portion 502 of horn 5, horn 5 is cooled, the powder that all right wash boring of water finally flowed out from sleeve pipe produces.Horn 5 can be solid hopkinson bar, also can be hollow stem, in the present embodiment, horn 5 is hollow stem, that is horn 5 has the through hole 6 from the link in guide rod portion 502 to the front end face A of operate portions 501, and through hole 6, can as the passage of cooling water when drilling operation, for cooling horn 5, in addition, after taking off handle 1, through hole 6 can as instrument channel, as guiding steel wire, ultrasonic probe etc. can from wherein passing through.
As Fig. 1, 2, horn 5 is provided with ultrasonic reception induction apparatus 4 with the junction of ultrasonic transducer 2, ultrasonic reception induction apparatus 4 is by the ultrasonic feedback circuit of wire connection control system, ultrasonic reception induction apparatus 4 collects the ultrasound information of horn 5, different feedback waves can be produced when horn 5 touches different organizing, feedback wave is converted into the signal of telecommunication by piezoquartz, electric signal transmission is to the ultrasonic feedback circuit of control system, when the operate portions 501 of horn 5 contacts osseous tissue, the ultrasonic frequency of its feedback is in particular range, in this particular range, supersonic generator can obtain the instruction worked on of ultrasound feedback circuit, when contacting soft tissue, the ultrasonic frequency of its feedback is not in this set point, supersonic generator obtains out-of-work instruction, what touched by control system identification horn 5 thus is skeleton, or soft tissue around, thus whether control ultrasonic generator quits work, what touch when horn 5 is not skeleton, but during the soft tissue of surrounding, control system controls supersonic generator 3 and quits work, thus realize tissue identification function, avoid accidentally injuring surrounding tissue.
As shown in Figure 3, the outer surface of the operate portions 501 of horn 5 is provided with the groove 503 of distributed in grid, groove 503 for cooling water and boring powder discharge.
In the present embodiment, the syndeton of ultrasonic transducer 2 and horn 5 as shown in Figure 1, 2, ultrasonic transducer 2 front end is provided with and connects bore 201, the end sleeve in the guide rod portion 502 of horn 5 is contained in and connects in bore 201, trip bolt 8, through the end in handle 1 location guide portion 502, unclamps trip bolt 8 and horn 5 can be made to be separated with ultrasonic transducer 2 and to throw off from handle 1.
Ultrasonic orthopaedics drilling equipment of the present invention, supersonic generator 3 connects hand switch or foot switch by control system, the start and stop of manually switch or the operation of foot switch keyhole.During operation, being abutted in by the end face A of the operate portions 501 of horn 5 needs on the surface of bone of bore position, namely starting switch starts boring, simultaneously, can enter from water inlet 102 ultrasonic transducer 2 and horn 5 cooled by controlled cooling model water, and from the powder that the water wash boring that sleeve pipe flows out produces; For the horn 5 with through hole 6, cooling water flows through simultaneously from through hole 6, for horn 5 cools, and the powder that wash boring produces.The present invention adopts ultrasonic drilling, does not need to advance by downforce, and make to there will not be skidding during boring, position and the dimensional accuracy of boring are high; And ultrasonic drilling is particularly suitable for punching on frangible material, not easily causes cracked, be applicable to the boring to the microxea of senile osteoporosis, comminuted fracture.