CN109009405B

CN109009405B - Drill bit for orthopedics

Info

Publication number: CN109009405B
Application number: CN201810797752.3A
Authority: CN
Inventors: 瓮秀山
Original assignee: Suzhou Xiquan Software Technology Co ltd
Current assignee: SUZHOU XIQUAN SOFTWARE TECHNOLOGY Co.,Ltd.
Priority date: 2018-07-19
Filing date: 2018-07-19
Publication date: 2020-11-27
Anticipated expiration: 2038-07-19
Also published as: CN111956319A; CN111956320A; CN109009405A

Abstract

The invention relates to an orthopedic drill bit. Drill bit for orthopedics includes lantern ring support and drill bit subassembly, the lantern ring support includes first lantern ring, second lantern ring and link, first lantern ring with the second lantern ring install respectively in the relative both ends of link, the internal diameter of first lantern ring is greater than the internal diameter of the second lantern ring, drill bit subassembly establishes a section of thick bamboo and ends the bull stick including boring, bore establish a section of thick bamboo install in the middle part of link, it is formed with the steel sheet annular and cuts the cover to bore the bottom of establishing a section of thick bamboo, end the bull stick set up in bore establish in a section of thick bamboo and one end is protruding to be located in the steel sheet annular is cut the cover, the tip of ending the bull stick is arranged in the drive slot of card income screw, the top that the cover was cut to the steel sheet annular is provided with the magnetic. The drill bit for orthopedics can clear away the piece better.

Description

Drill bit for orthopedics

Technical Field

The invention relates to an orthopedic drill bit.

Background

With the development of medical technology, internal fixation bone plates and locking screw systems thereof are increasingly used in trauma orthopedics because of their specific biomechanical advantages. There are a number of associated complications that follow due to the difficulty of removal of the locking screw. To clear the locking screw, the locking screw may be removed using an orthopaedic drill. However, the removal of the locking screw is prone to debris and is difficult to remove.

Disclosure of Invention

Based on this, there is a need for an orthopaedic drill bit that is better able to remove debris.

The utility model provides a drill bit for orthopedics, includes lantern ring support and drill bit assembly, lantern ring support includes first lantern ring, second lantern ring and link, first lantern ring with the second lantern ring install respectively in the relative both ends of link, the internal diameter of first lantern ring is greater than the internal diameter of second lantern ring, drill bit assembly establishes a section of thick bamboo and ends the bull stick including boring, bore establish a section of thick bamboo install in the middle part of link, it is formed with the steel sheet annular and cuts the cover to bore the bottom of establishing a section of thick bamboo, end the bull stick set up in bore establish in a section of thick bamboo and one end is protruding locate in the steel sheet annular is cut in the cover, the tip of end the bull stick is arranged in the drive slot of card income screw to prevent that the screw is rotatory, the top that the cover was cut to the steel sheet annular is provided with.

In one embodiment, the steel plate annular cutting sleeve comprises an annular cylinder part and a circular top plate, the circular top plate is formed at the bottom of the drilling cylinder, and the annular cylinder part is protruded on the periphery of the circular top plate.

In one embodiment, the rotation stopping rod is arranged in the circular top plate in a penetrating mode, and the end portion of the rotation stopping rod is arranged outside the steel plate annular cutting sleeve in a protruding mode.

In one embodiment, a plurality of cutting teeth are arranged on one side of the annular cylinder part, which is far away from the circular top plate, and the tops of the cutting teeth are arc-shaped.

In one embodiment, a driving gear is sleeved on the top of the drilling barrel and is connected with a motor, and the motor is used for driving the driving gear to rotate.

In one embodiment, a mounting sleeve is arranged in the drilling barrel, and the top of the rotation stopping rod is mounted on the mounting sleeve.

In one embodiment, the connecting frame is provided with a sliding groove, the drilling barrel penetrates through the sliding groove, the drilling barrel is convexly provided with two supporting wing pieces, and the two supporting wing pieces respectively abut against the top and the bottom of the connecting frame.

In one embodiment, the two supporting fins are both annular pieces and are protruded on the periphery of the drilling barrel at intervals.

In one embodiment, the thickness of the support fins is 1-2.5 mm, and the guide protrusions are arranged on both support fins.

In one embodiment, the top and the bottom of the connecting frame are both provided with guide grooves, and the guide protrusions of the two support fins are respectively slidably arranged in the two guide grooves.

When the drill bit for orthopedics is used, the first sleeve ring and the second sleeve ring are fixedly sleeved on the limb of a patient, so that the drill bit assembly is fixed on the limb of the patient. Through utilizing in the groove on the head that the rotation stopping pole inserted the screw is rotatory in order to prevent the screw, then the steel sheet annular that bores and establish a section of thick bamboo cuts the steel sheet, and the piece that causes in the cutting process can have the magnetic sheet at steel sheet annular cutting top adsorbs, thereby makes things convenient for the cleaing away of piece.

Drawings

Fig. 1 is a perspective view of an orthopedic drill bit in an embodiment.

FIG. 2 is a perspective view of an embodiment of a cooling sleeve.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention.

The invention relates to an orthopedic drill bit. For example, the drill bit for orthopedics comprises a lantern ring bracket and a drill bit assembly, wherein the lantern ring bracket comprises a first lantern ring, a second lantern ring and a connecting frame. For example, the first collar and the second collar are respectively installed at two opposite ends of the connecting frame, and the inner diameter of the first collar is larger than that of the second collar. For example, the drill bit assembly comprises a drilling barrel and a rotation stopping rod, the drilling barrel is mounted in the middle of the connecting frame, and a steel plate annular cutting sleeve is formed at the bottom of the drilling barrel. For example, the rotation stopping rod is arranged in the drilling barrel, one end of the rotation stopping rod is convexly arranged in the steel plate annular cutting sleeve, and the end part of the rotation stopping rod is clamped into a driving groove of a screw to prevent the screw from rotating. For example, the top of the steel plate annular cutting sleeve is provided with a magnetic plate.

Referring to fig. 1, an orthopedic drill bit 100 includes a collar support 10 and a drill bit assembly 20, the collar support includes a first collar 11, a second collar 12 and a connecting frame 13, the first collar and the second collar are respectively installed at two opposite ends of the connecting frame, an inner diameter of the first collar is greater than an inner diameter of the second collar, the drill bit assembly includes a drilling cylinder 21 and a rotation preventing rod 22, the drilling cylinder is installed at a middle portion of the connecting frame, a steel plate annular cutting sleeve is formed at a bottom of the drilling cylinder, the rotation preventing rod is disposed in the drilling cylinder, one end of the rotation preventing rod is convexly disposed in the steel plate annular cutting sleeve, an end portion of the rotation preventing rod is used for being clamped into a driving groove of a screw to prevent the screw from rotating, and a magnetic plate is disposed at a top of the steel plate annular cutting sleeve.

For example, when the drill bit for orthopedics is used, the drill bit assembly is fixedly sleeved on the limb of the patient by utilizing the first sleeve ring and the second sleeve ring so as to be fixed on the limb of the patient. Through utilizing in the groove on the head that the rotation stopping pole inserted the screw is rotatory in order to prevent the screw, then the steel sheet annular that bores and establish a section of thick bamboo cuts the steel sheet in bone or the muscle, and the piece that causes in the cutting process can have the magnetic sheet at steel sheet annular cutting top adsorbs, thereby makes things convenient for the clearance of piece.

For example, in order to facilitate the rotation stop rod to be clamped into a groove at the top of the screw, the steel plate annular cutting sleeve comprises an annular cylinder part and a circular top plate, the circular top plate is formed at the bottom of the drilling cylinder, and the annular cylinder part is convexly arranged on the periphery of the circular top plate. The rotation stopping rod penetrates through the circular top plate, and the end part of the rotation stopping rod is convexly arranged outside the annular steel plate cutting sleeve. One side of the annular cylinder part, which is far away from the circular top plate, is provided with a plurality of cutting teeth, and the tops of the cutting teeth are arc-shaped. The magnetic plate set up in on the circular roof, the top cover of establishing a section of thick bamboo is equipped with drive gear to bore, drive gear is connected with the motor, the motor is used for the drive gear rotates. Because the tip of only rotating rod protruding locate outside the steel sheet annular is cut the cover, consequently a cutting section of thick bamboo butt during the steel sheet, only rotating rod can in time insert in the groove at the top of screw to set screw can not rotate or rock.

For example, in order to facilitate the movement of the drilling cylinder, an installation sleeve is arranged in the drilling cylinder, and the top of the rotation stopping rod is installed on the installation sleeve. The connecting frame is provided with a sliding groove, the drilling barrel penetrates through the sliding groove, the drilling barrel is convexly provided with two supporting wing pieces, and the two supporting wing pieces respectively support the top and the bottom of the connecting frame. The two supporting wing pieces are annular pieces and are arranged on the periphery of the drilling barrel in a protruding mode at intervals. The thickness of the supporting wing pieces is 1-2.5 mm, and the two supporting wing pieces are provided with guide protrusions. Guide grooves are formed in the top and the bottom of the connecting frame, and the guide protrusions of the two supporting fins are arranged in the two guide grooves in a sliding mode respectively. Because the guide way has all been seted up to the top and the bottom of link, consequently make things convenient for the guide bulge of two support fins card with sliding in two guide ways, and then make things convenient for lateral shifting bore and establish a section of thick bamboo to demolish different screws.

For example, it is particularly important to note that, referring to fig. 2, during the cutting process of the drill, a large amount of heat is generated by the bone, which may damage the bone, and in order to facilitate cooling, the drill for orthopedics further comprises a rigid support, which is disposed on the ground or on a bed or other support, and on which a cooling sleeve 50 is disposed, and in which a cooling liquid is disposed, for example, the cooling sleeve is connected to an external cooling liquid source through a hose. The cooling sleeve is provided with a plurality of cooling holes, the top of the drilling barrel penetrates through the cooling sleeve, and when the drilling barrel cuts a steel plate on a bone, cooling liquid overflows along the cooling holes and flows downwards along the drilling barrel so as to reach the bone and further cool the bone and the steel plate. For example, in order to prevent infection, it is necessary to sterilize human tissues such as bones, and the cooling liquid contains a sterilizing component, and when the cooling liquid enters the bones, the cooling liquid can utilize the sterilizing component to sterilize bacteria on the bones, so as to prevent the infection of the bones by the bacteria during the cutting process.

For example, in order to facilitate the extrusion of the cooling liquid, an elliptical cam body 211 is disposed at the top of the drilling cylinder, the elliptical cam body is an elastic cam, for example, the elliptical cam body is a rubber cam, a liquid suction ring body is formed on the inner side of the cooling sleeve, the liquid suction ring body is made of sponge and closes the plurality of cooling holes on the cooling sleeve, so that the cooling liquid in the cooling sleeve can be soaked on the liquid suction ring body, and one end of the elastic cam abuts against the liquid suction ring body. When the drilling barrel rotates, the elliptical cam body can be driven to continuously abut against the liquid absorption ring body, so that cooling liquid on the liquid absorption ring body is extruded out, and the cooling liquid flows to the drilling barrel along the elliptical cam body. For example, in order to facilitate the introduction of the cooling liquid onto the drilled cylinder, the bottom of the elliptical cam body is provided with two arcuate pieces 213 which are disposed opposite to each other, each of which extends to the top of the drilled cylinder, the surfaces of the arcuate pieces being formed with arcuate guide surfaces which are inclined toward the drilled cylinder, and by providing the arcuate pieces, the cooling liquid on the liquid suction ring body can be guided onto the drilled cylinder by means of the arcuate guide surfaces of the two arcuate pieces. For example, the bottom of the two arc-shaped pieces is provided with a liquid storage annular body 215, the liquid storage annular body is provided with a plurality of adsorption hair balls, the liquid storage annular body is sleeved on the periphery of the top of the drilling barrel, the cooling liquid can be temporarily stored through the adsorption hair balls, and excessive cooling liquid is prevented from flowing onto the drilling barrel instantly.

For example, be provided with the inner ring in the liquid ring shape body, be formed with the extrusion annular in the inner ring, the liquid ring shape body cover of depositing is located on the inner ring and is sealed the extrusion annular, set up a plurality of whipping spheroid in the extrusion annular, when boring to establish a section of thick bamboo rotation rate and increase, a plurality of whipping spheroids outwards whip more, and then force the liquid in the liquid ring shape of depositing can extrude more, and then make more cooling liquid flow extremely bore and establish on the section of thick bamboo. For example, in order to enable the cooling liquid to flow onto the drilling cylinder more smoothly, the top of the drilling cylinder is provided with a plurality of overflow slots, the overflow slots extend along the axial direction of the drilling cylinder, the top of the overflow slots extends onto the liquid storage annular body, the overflow slots are uniformly arranged along the circumferential direction of the drilling cylinder, and the depth of the overflow slots is gradually reduced along the direction towards the bottom of the drilling cylinder.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. The drill bit for the orthopedics department is characterized by comprising a lantern ring support and a drill bit assembly, wherein the lantern ring support comprises a first lantern ring, a second lantern ring and a connecting frame, the first lantern ring and the second lantern ring are respectively installed at two opposite ends of the connecting frame, the inner diameter of the first lantern ring is larger than that of the second lantern ring, the drill bit assembly comprises a drilling barrel and a rotation stopping rod, the drilling barrel is installed in the middle of the connecting frame, a steel plate annular cutting sleeve is formed at the bottom of the drilling barrel, the rotation stopping rod is arranged in the drilling barrel, one end of the rotation stopping rod is convexly arranged in the steel plate annular cutting sleeve, the end part of the rotation stopping rod is used for being clamped into a driving groove of a screw to prevent the screw from rotating, and a magnetic plate is arranged at the top of the steel plate annular cutting sleeve;

the steel plate annular cutting sleeve comprises an annular cylinder part and a circular top plate, the circular top plate is formed at the bottom of the drilling sleeve, the annular cylinder part is convexly arranged at the periphery of the circular top plate, the rotation stopping rod is arranged in the circular top plate in a penetrating way, the end part of the rotation stopping rod is convexly arranged outside the steel plate annular cutting sleeve, one side of the annular cylinder part, far away from the circular top plate, is provided with a plurality of cutting teeth, the tops of the cutting teeth are arc-shaped, the top of the drilling sleeve is sleeved with a driving gear, the driving gear is connected with a motor, the motor is used for driving the driving gear to rotate, an installation sleeve is arranged in the drilling sleeve, the top of the rotation stopping rod is installed on the installation sleeve, the connecting frame is provided with a sliding groove, the drilling sleeve is arranged in the sliding groove in a penetrating way, the drilling sleeve is convexly provided with two supporting fins, and the two supporting fins are respectively abutted against the top and the, the two supporting wing pieces are annular pieces and are convexly arranged on the periphery of the drilling barrel at intervals, the thickness of each supporting wing piece is 1-2.5 mm, guide protrusions are arranged on the two supporting wing pieces, guide grooves are formed in the top and the bottom of the connecting frame, and the guide protrusions of the two supporting wing pieces are arranged in the two guide grooves in a sliding mode respectively;

the drill bit for orthopedics further comprises a rigid support, the rigid support is arranged on the ground or a bed body, a cooling sleeve is arranged on the rigid support, cooling liquid is arranged in the cooling sleeve, the cooling sleeve is connected with an external cooling liquid source through a hose, a plurality of cooling holes are formed in the cooling sleeve, the top of the drilling barrel penetrates through the cooling sleeve, the cooling liquid contains sterilization components, an elliptical cam body is arranged at the top of the drilling barrel, the elliptical cam body is an elastic cam, the elliptical cam body is a rubber cam, a liquid suction ring body is formed on the inner side of the cooling sleeve, the liquid suction ring body is made of sponge and seals the plurality of cooling holes in the cooling sleeve, so that the cooling liquid in the cooling sleeve can be soaked on the liquid suction ring body, and one end of the elastic cam body is abutted against the liquid suction ring body, the bottom of the oval cam body is provided with two arc pieces, two arc pieces set up relatively, every the arc piece extends to the top of a section of thick bamboo is established to the brill, the surface of arc piece is formed with the arc guide face, the slope of arc guide face orientation a section of thick bamboo is established to the brill, the bottom of two arc pieces is provided with the liquid ring form of depositing, it adsorbs the pompon to deposit on the liquid ring form, it locates to deposit liquid ring form cover the top periphery of a section of thick bamboo is established to the brill, it is provided with the inner ring to deposit the liquid ring form in the inner ring, it locates to deposit liquid ring form cover the inner ring on and seal the extrusion annular, set up a plurality of whipping spheroid in the extrusion annular, it is provided with a plurality of overflow slots to bore the top of establishing a section of thick bamboo, a plurality of overflow slots are followed bore the axial extension of establishing a section of thick bamboo, the top of overflow slot, the plurality of overflow slots are uniformly arranged along the circumferential direction of the drilling barrel, and the depth of the overflow slots is gradually reduced along the direction towards the bottom of the drilling barrel.