CN208725819U

CN208725819U - Orthopaedics electric bone drill

Info

Publication number: CN208725819U
Application number: CN201820188915.3U
Authority: CN
Inventors: 宫月明
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-01-26
Filing date: 2018-01-26
Publication date: 2019-04-12
Anticipated expiration: 2028-01-26

Abstract

The utility model discloses a kind of orthopaedics electric bone drills, belong to the field of medical instrument technology, it includes shell, line shaft is rotatably equipped in shell, line shaft runs through bearing chamber, and line shaft one end is equipped with drill bit, hand-held part is fixedly installed on shell, hand-held part has hand-held cavity, holds and is equipped with a partition in cavity, and hand-held cavity is divided into power cavity and liquid storage chamber by partition；Line shaft is equipped with axially extending central through hole, and drill bit is equipped with center fluid hole, is loaded with cleaning solution in liquid storage chamber, is equipped with liquid pump in liquid storage chamber；Line shaft is equipped with the first ventilation hole, and drill bit is equipped with the second ventilation hole, and the communicating passage of the first ventilation hole of connection is equipped with positioned at the indoor line shaft of bearing, and communicating passage position is corresponded on line shaft equipped with blade.The utility model solves the clast generated when the drilling of current bone drill and is difficult to the technical issues of clearing up, and is widely used in bone surgery.

Description

Orthopaedics electric bone drill

Technical field

The utility model relates to the field of medical instrument technology more particularly to a kind of electric bone drills in bone surgery.

Background technique

The strap that drills on bone is frequently necessary in bone surgery, the most commonly used surgical instrument is electrical bone Bore, the electric bone drill of the prior art include be separately connected by both ends drill bit drill body and drill jig and it is interior be equipped with variable-speed motor, The headstock of transformer, fairing, variable-speed motor is connect by transmission shaft with drill body, bulky, and when use will also drag Dynamic power supply line, medical staff uses very inconvenient.Also, a large amount of clast can be generated when drilling through sclerotin, these are broken Bits with brill bone can penetrate into the musculature and capillary of surrounding, and time slightly length will lead to these clasts just It can be surrounded by musculature, require a great deal of time cleaning after the completion of drilling, causes operating time long, so that wound site It is unable to get wrapping in time and protection.

Therefore, a kind of new electric bone drill is developed, for the field of medical instrument technology, not only there is urgent research valence Value, it may have good economic benefit and practical application potentiality, this is exactly the power place and base that the utility model is accomplished Plinth.

Utility model content

In order to overcome the defect of existing bone saw as indicated above, the present utility model people deeply grinds this Study carefully, after having paid a large amount of creative works, so as to complete the utility model.

Specifically, the technical problem to be solved by the utility model is to provide a kind of orthopaedics electric bone drill, to solve The clast generated when bone drill drills at present is difficult to the technical issues of clearing up.

In order to solve the above technical problems, the technical solution of the utility model is: a kind of orthopaedics electric bone drill, the orthopaedics Include shell with electric bone drill, the both ends of the shell are respectively equipped with drive end bearing bracket and rear end cap, the drive end bearing bracket and rear end cap it Between be equipped with bearing chamber, line shaft is rotatably equipped in the shell, the line shaft runs through the bearing chamber, and the line shaft is stretched One end of the drive end bearing bracket is equipped with drill bit out, and hand-held part is fixedly installed on the shell, and the hand-held part has hand-held sky Chamber, the hand-held cavity is interior to be equipped with a partition, and the hand-held cavity is divided into power cavity and liquid storage chamber by the partition, described dynamic Power is intracavitary to be equipped with power supply, and the close shell position is equipped with the motor connecting with the power supply, institute in the power cavity It states motor and line shaft is sequentially connected；The line shaft be equipped with axially extending central through hole, the drill bit be equipped with The center fluid hole that central through hole is connected is equipped with accommodating cavity, the center between the rear end cap and the end of transmission shaft Through-hole is connected to the accommodating cavity, is loaded with cleaning solution in the liquid storage chamber, liquid pump, the liquid are equipped in the liquid storage chamber Body pump is connected to the accommodating cavity by perfusion tube；The line shaft is equipped with the first ventilation hole, and first ventilation hole is parallel Central through hole setting, the drill bit are equipped with the second ventilation hole, second ventilation hole be connected to first ventilation hole and The parallel center fluid hole setting, the connection for being connected to first ventilation hole is equipped with positioned at the indoor line shaft of bearing Channel corresponds to the communicating passage position on the line shaft equipped with blade.

In the orthopaedics electric bone drill of the utility model, as an improvement, between the line shaft and drill bit Equipped with positioning pin.

After above-mentioned technical proposal, the beneficial effects of the utility model are:

(1) since drill bit is equipped with the center fluid hole being connected with central through hole, cleaning solution is pumped into receiving by liquid pump Cavity, then center fluid hole is flowed through by central through hole and flows out drill bit again, so that the utility model is while boring bone, clast quilt Cleaning solution flushing is gone down, and is avoided around remaining in or is splashed in musculature and stops for a long time and be difficult to clear up；And by In corresponding to communicating passage position on line shaft equipped with blade, while line shaft rotation, blade is rotated with it, so that bearing chamber Interior generation positive pressure air pressure, air-flow just flows through the first ventilation hole from communicating passage, then blows out drill bit through the second ventilation hole, will bore bone institute The clast of generation is blown off, and then is avoided to remain in surrounding or be splashed in musculature and stopped for a long time and be difficult to clear up, Further improve clast cleaning effect.

(2) due to being equipped with positioning pin between line shaft and drill bit, can more bit change or when reinstalling by first Ventilation hole is aligned with the second ventilation hole, and center fluid hole is aligned with central through hole, enables cleaning solution and air-flow smooth Discharge, improve cleaning effect.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model embodiment；

Wherein, in Fig. 1, each number designation is respectively referred to for following concrete meaning, element and/or component.

In figure: 1, shell, 101, bearing chamber, 102, accommodating cavity, 2, hand-held part, 201, power cavity, 202, liquid storage chamber, 3, Line shaft, 301, central through hole, the 302, first ventilation hole, 303, communicating passage, 4, drill bit, 401, center fluid hole, 402, Two ventilation holes, 5, rear end cap, 6, drive end bearing bracket, 7, partition, 8, motor, 9, perfusion tube, 10, liquid pump, 11, power supply, 12, positioning Pin, 13, blade.

Specific embodiment

The present invention will be further described with reference to the accompanying drawings and examples.But the purposes of these exemplary embodiments Only it is used to enumerate the utility model with purpose, any type of any limit not is constituted to the real protection scope of the utility model It is fixed, it is more non-that the protection scope of the utility model is confined to this.

As shown in Figure 1, the utility model provides a kind of orthopaedics electric bone drill, including shell 1, the both ends of shell 1 It is respectively equipped with drive end bearing bracket 6 and rear end cap 5, bearing chamber 101 is equipped between drive end bearing bracket 6 and rear end cap 5, is rotatably equipped in shell 1 Line shaft 3, line shaft 3 run through bearing chamber 101, and one end that line shaft 3 stretches out drive end bearing bracket 6 is equipped with drill bit 4, fixes on shell 1 Hand-held part 2 is installed, is used convenient for hand-held, hand-held part 2 has hand-held cavity, holds and is equipped with a partition 7 in cavity, and partition 7 will Hand-held cavity is divided into power cavity 201 and liquid storage chamber 202, and power supply 11 is equipped in power cavity 201, which is direct current Source is equipped with the motor 8 connect with power supply 11 close to 1 position of shell in power cavity 201, and motor 8 is direct current generator, electronic Machine 8 and line shaft 3 are sequentially connected, and bevel gear pair connection can be used, synchronous band connection, original field technology people also can be used Member can according to need voluntarily selection and be simplified structure using the kind of drive, this mode, overcome traditional bone drill and use electricity The defect of source line, it is easy to carry and use；Line shaft 3 is equipped with axially extending central through hole 301, and drill bit 4 is equipped with in The center fluid hole 401 that heart through-hole 301 is connected is equipped with accommodating cavity 102 between rear end cap 5 and the end of transmission shaft, accommodate Cavity 102 is the cavity of relative closure, which is not connected to bearing chamber 101, and the connection of central through hole 301 accommodates empty Chamber 102 is loaded with cleaning solution in liquid storage chamber 202, and liquid pump 10 is equipped in liquid storage chamber 202, and liquid pump 10 passes through conducting wire and electricity Source 11 connects, and liquid pump 10 is connected to accommodating cavity 102 by perfusion tube 9, and cleaning solution is pumped into accommodating cavity 102 by liquid pump 10, It flows through center fluid hole 401 by central through hole 301 again and flows out drill bit 4 again, so that the utility model is while boring bone, clast Cleaned liquid flushing is gone down, and is avoided around remaining in or is splashed in musculature and stops for a long time and be difficult to clear up；It is dynamic Power axis 3 is equipped with the first ventilation hole 302, and the parallel central through hole 301 of the first ventilation hole 302 is arranged, and drill bit 4 is equipped with the second ventilation Hole 402, the second ventilation hole 402 is connected to the first ventilation hole 302 and parallel center fluid hole 401 is arranged, in bearing chamber 101 Line shaft 3 is equipped with the communicating passage 303 of the first ventilation hole 302 of connection, and 303 one end of communicating passage connects bearing chamber 101, another End connects the first ventilation hole 302, and 303 position of communicating passage is corresponded on line shaft 3 equipped with blade 13, is rotated in line shaft 3 same When, blade 13 rotates with it, so that generating positive pressure air pressure in bearing chamber 101, air-flow just flows through the first ventilation from communicating passage 303 Hole 302, then drill bit 4 is blown out through the second ventilation hole 402, clast caused by bone will be bored and blown off, and then avoid and remain in surrounding Or it is splashed in musculature and stops for a long time and be difficult to clear up.It is used to easily facilitate, it can in the outer surface of hand-held part 2 Button switch is arranged, button switch is set on the line between power supply 11 and liquid pump 10, controls the starting of liquid pump 10 And stopping can pump 10 with closing liquid, not need using cleaning solution, not only when that only can be excluded clast with gas flow purging Cleaning solution can be saved, while also having expanded the use scope of the utility model.

It is equipped with positioning pin 12 between line shaft 3 and drill bit 4, can lead in more bit change 4 or when reinstalling by first Air holes 302 is aligned with the second ventilation hole 402, and center fluid hole 401 is aligned with central through hole 301, so that cleaning solution is gentle Stream can smoothly be discharged.

It should be appreciated that the purposes of these embodiments is merely to illustrate the utility model and is not intended to limitation the utility model Protection scope.In addition, it should also be understood that, those skilled in the art can be right after having read the technology contents of the utility model The utility model makees various change, modification and/or variation, all these equivalent forms equally fall within right appended by the application and want Seek book within the limits of the protection.

Claims

1. orthopaedics electric bone drill, including shell, the both ends of the shell are respectively equipped with drive end bearing bracket and rear end cap, the drive end bearing bracket It is equipped with bearing chamber between rear end cap, line shaft is rotatably equipped in the shell, the line shaft runs through the bearing chamber, institute It states line shaft and stretches out one end of the drive end bearing bracket and drill bit is installed, which is characterized in that it is fixedly installed with hand-held part on the shell, The hand-held part has hand-held cavity, is equipped with a partition in the hand-held cavity, the hand-held cavity is divided by the partition Power cavity and liquid storage chamber are equipped with power supply in the power cavity, are equipped in the power cavity close to the shell position and institute The motor of power supply connection is stated, the motor and line shaft are sequentially connected；The line shaft is equipped with axially extending center Through-hole, the drill bit is equipped with the center fluid hole being connected with central through hole, between the rear end cap and the end of transmission shaft Equipped with accommodating cavity, the central through hole is connected to the accommodating cavity, is loaded with cleaning solution, the liquid storage chamber in the liquid storage chamber Liquid pump is inside installed, the liquid pump is connected to the accommodating cavity by perfusion tube；The line shaft is equipped with the first ventilation Hole, the central through hole setting, the drill bit are equipped with the second ventilation hole, second ventilation hole to first ventilation hole in parallel It is connected to first ventilation hole and the parallel center fluid hole setting, is located at the indoor line shaft of bearing and is equipped with connection The communicating passage of first ventilation hole corresponds to the communicating passage position on the line shaft equipped with blade.

2. orthopaedics electric bone drill as described in claim 1, it is characterised in that: be equipped with positioning between the line shaft and drill bit Pin.