CN108478249B

CN108478249B - Bone drilling device for orthopedics department

Info

Publication number: CN108478249B
Application number: CN201810195252.2A
Authority: CN
Inventors: 傅正一
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-03-09
Filing date: 2018-03-09
Publication date: 2021-02-02
Anticipated expiration: 2038-03-09
Also published as: CN108478249A

Abstract

The invention discloses an orthopedic bone drilling device, which belongs to the technical field of medical instruments and comprises a handheld bone drill and a bearing disc arranged below a drilled bone body, wherein the handheld bone drill comprises a shell, a front end cover and a rear end cover are respectively arranged at two ends of the shell, a bearing chamber is arranged between the front end cover and the rear end cover, a power shaft is rotatably arranged in the shell and penetrates through the bearing chamber, a drill bit is arranged at one end of the power shaft, a handheld part is fixedly arranged on the shell, a motor connected with a direct current power supply is arranged in the handheld part, and the motor is in transmission connection with the power shaft; the bone drill is characterized in that the upper part of the bearing disc is open and corresponds to the drill bit, the bottom of the bearing disc is provided with a converging hole, and the converging hole is connected with the collecting box through a return pipe.

Description

Bone drilling device for orthopedics department

Technical Field

The invention relates to the technical field of medical instruments, in particular to an orthopedic bone drilling device.

Background

The electric bone drill in the prior art comprises a drill body connected with a drill bit, a drill bit clamp and a power box internally provided with a speed regulating motor, a transformer and a rectifying device, wherein the speed regulating motor is connected with the drill body through a transmission shaft, the size is large, a power line needs to be dragged during use, and medical staff are very inconvenient to use. In addition, a large amount of fragments are generated when the bone is drilled, the fragments can infiltrate into the surrounding muscle tissues and capillary vessels along with the drilling of the bone, the fragments can be surrounded by the muscle tissues for a long time, a large amount of time is needed for cleaning after the drilling is completed, the operation time is long, the wound part cannot be wrapped and protected in time, and the scattered bone fragments can pollute the surrounding environment.

Disclosure of Invention

The invention aims to provide a bone drilling device for orthopedics department, which is used for solving the problem that bone fragments are scattered everywhere during bone drilling.

In order to achieve the purpose, the technical scheme provided by the invention is as follows: an orthopedic bone drilling device comprises a handheld bone drill and a bearing disc arranged below a drilled bone body, wherein the handheld bone drill comprises a shell, a front end cover and a rear end cover are respectively arranged at two ends of the shell, a bearing chamber is arranged between the front end cover and the rear end cover, a power shaft is rotatably arranged in the shell and penetrates through the bearing chamber, a drill bit is arranged at one end, extending out of the front end cover, of the power shaft, a handheld part is fixedly arranged on the shell, a motor connected with a direct-current power supply is arranged in the handheld part, and the motor is in transmission connection with the power shaft; the top of the bearing disc is open and corresponds to the position of the drill bit, the bottom of the bearing disc is provided with a converging hole, and the converging hole is connected with the collecting box through a return pipe.

As a preferred technical scheme, the handheld part is provided with a handheld cavity, a partition plate is arranged in the handheld cavity, the partition plate divides the handheld cavity into a power cavity and a liquid storage cavity, and the direct-current power supply and the motor are both arranged in the power cavity.

As a preferred technical scheme, be equipped with axially extended central through-hole on the power shaft, be equipped with the central liquid hole of going out that is linked together with central through-hole on the drill bit, be equipped with between the tip of rear end cap and transmission shaft and hold the cavity, central through-hole intercommunication hold the cavity, the splendid attire has the washing liquid in the stock solution intracavity, install the liquid pump in the stock solution intracavity, the liquid pump passes through the transfer line intercommunication hold the cavity.

As an optimal technical scheme, be equipped with first ventilation hole on the power shaft, first ventilation hole is parallel central through-hole sets up, be equipped with the second ventilation hole on the drill bit, second ventilation hole intercommunication first ventilation hole and parallel the center goes out liquid hole setting, is located the bearing chamber be equipped with the intercommunication on the power shaft the intercommunication passageway in first ventilation hole, correspond on the power shaft intercommunication passageway position is equipped with the blade.

As a preferable technical scheme, a positioning pin is arranged between the power shaft and the drill bit.

As a preferred technical scheme, be equipped with the first baffle of vertical setting in the collecting box, first baffle will the collecting box separates for collecting the chamber and purifying the chamber, the back flow intercommunication collect the chamber, be equipped with the pellicle on the first baffle.

As a preferred technical scheme, a second partition board is transversely arranged in the collection cavity, the collection cavity is divided into a converging cavity and a settling cavity which are arranged up and down by the second partition board, and a plurality of filter holes communicated with the converging cavity and the settling cavity are formed in the second partition board.

As a preferable technical scheme, a plurality of magnetic stirrers are arranged in the confluence cavity.

As a preferred technical solution, the position of the semi-permeable membrane corresponds to the position of the confluence chamber.

As a preferable technical scheme, a corrugated connecting sleeve is fixedly installed at the open end of the bearing disc, and a binding belt for binding the corrugated connecting sleeve on the drilled bone body is arranged at the top end of the corrugated connecting sleeve.

The method of the invention has the following advantages:

(1) because the hand-held bone drill is arranged, the structure is simplified, the defect of a power line used by the traditional bone drill is overcome, and the hand-held bone drill is convenient to carry and use; and because the bottom of the bearing plate is provided with the confluence hole, the confluence hole is connected with the collecting box through the return pipe, the bone scraps can fall into the bearing plate and then flow into the collecting box through the return pipe for centralized collection, and the environmental pollution is avoided.

(2) Because the drill bit is provided with the central liquid outlet hole communicated with the central through hole, the cleaning liquid is pumped into the containing cavity by the liquid pump and then flows through the central liquid outlet hole through the central through hole and then flows out of the drill bit, the drill bit can be used for drilling bones, and meanwhile, the scraps are washed by the cleaning liquid, so that the problem that the scraps are remained around or splashed into muscle tissues for a long time and are difficult to clean is avoided; because the blades are arranged on the power shaft corresponding to the communication channel, when the power shaft rotates, the blades rotate along with the power shaft, positive pressure air pressure is generated in the bearing chamber, air flow flows through the first vent hole from the communication channel, then the drill bit is blown out through the second vent hole, and chips generated by drilling the bone are blown off, so that the situation that the chips are remained around or splashed into muscle tissues for a long time and are difficult to clean is avoided, and the chip cleaning effect is further improved.

(3) Because be equipped with the locating pin between power shaft and the drill bit, can align first ventilation hole and second ventilation hole when changing the drill bit or reinstallating to go out liquid hole and center through-hole with the center and align, make the discharge that washing liquid and air current can be smooth and easy, improved the cleaning performance.

(4) Because the top end of the corrugated connecting sleeve is provided with the restraining belt which is a corrugated plastic product and is convenient to move and stretch, the port of the corrugated connecting sleeve is fixed on the drilled bone body by using the restraining belt, so that scattered bone fragments, cleaning fluid and other substances can be collected at any time, and the operation of medical personnel is not hindered.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic diagram of a hand-held bone drill according to an embodiment of the present invention;

FIG. 3 is a schematic view of the structure of the collection box in the embodiment of the present invention;

in the figure: 001. the handheld bone drill comprises a handheld bone drill body, 1, a shell, 101, a bearing chamber, 102, a containing cavity, 2, a handheld part, 201, a power cavity, 202, a liquid storage cavity, 3, a power shaft, 301, a central through hole, 302, a first vent hole, 303, a communication channel, 4, a drill bit, 401, a central liquid outlet hole, 402, a second vent hole, 5, a rear end cover, 6, a front end cover, 7, a separation plate, 8, a motor, 9, a liquid conveying pipe, 10, a liquid pump, 11, a direct current power supply, 12, a positioning pin, 13, a blade, 002, a bearing disc, 003, a collection box, 14, a first separation plate, 15, a semipermeable membrane, 16, a second separation plate, 17, a magnetic stirrer, 18, a suction pipe, 19, a capsule, 004, a return pipe, 005, a corrugated connection sleeve, 006, a constraint belt, 007 and a drilled.

Detailed Description

The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

Example 1

As shown in figures 1 and 2, the invention provides an orthopedic bone drilling device, which comprises a hand-held bone drill 001 and a bearing disc 002 arranged below a drilled bone 007, wherein the hand-held bone drill 001 comprises a shell 1, a front end cover 6 and a rear end cover 5 are respectively arranged at two ends of the shell 1, a bearing chamber 101 is arranged between the front end cover 6 and the rear end cover 5, a power shaft 3 is rotatably arranged in the shell 1, the power shaft 3 penetrates through the bearing chamber 101, a drill bit 4 is arranged at one end of the power shaft 3, which extends out of the front end cover 6, a hand-held part 2 is fixedly arranged on the shell 1, a motor 8 connected with a direct current power supply 11 is arranged in the hand-held part 2, the motor 8 is in transmission connection with the power shaft 3 and can be connected by a bevel gear pair or a synchronous belt, a person in the art can select a transmission mode according to needs, the mode simplifies the structure and overcomes the defects of a power line used by a traditional, is convenient to carry and use; accept that set 002 top is uncovered and corresponding with drill bit 4 positions, the bottom of accepting set 002 is equipped with the convergent-divergent hole, and the collecting box 003 is connected through back flow 004 in the convergent-divergent hole, and the sclerotin piece can fall to accepting set 002 in, flows into collecting box 003 through back flow 004 again and concentrates the collection, has avoided the polluted environment.

The open end of the receiving disc 002 is fixedly provided with a corrugated connecting sleeve 005, the top end of the corrugated connecting sleeve 005 is provided with a constraint belt 006 for binding the corrugated connecting sleeve 005 on the drilled bone 007, the corrugated connecting sleeve 005 is a corrugated plastic product and is convenient to move and stretch, the port of the corrugated connecting sleeve 005 is fixed on the drilled bone 007 by using the constraint belt 006, so that scattered bone fragments, cleaning liquid and other substances can be collected at any time, and the operation of medical personnel is not hindered.

Example 2

The invention provides an orthopedic bone drilling device, which is basically the same as the first embodiment in structure, and is characterized in that on the basis of the first embodiment, the following improvements are made, so that the service performance is further improved:

as shown in fig. 2, the hand-held portion 2 has a hand-held cavity, a partition plate 7 is disposed in the hand-held cavity, the partition plate 7 divides the hand-held cavity into a power cavity 201 and a liquid storage cavity 202, and the dc power supply 11 and the motor 8 are both mounted in the power cavity 201.

The power shaft 3 is provided with a central through hole 301 extending axially, the drill bit 4 is provided with a central liquid outlet hole 401 communicated with the central through hole 301, an accommodating cavity 102 is arranged between the rear end cover 5 and the end part of the transmission shaft, the central through hole 301 is communicated with the accommodating cavity 102, cleaning liquid is contained in the liquid storage cavity 202, a liquid pump 10 is installed in the liquid storage cavity 202, the liquid pump 10 is communicated with the accommodating cavity 102 through a liquid conveying pipe 9, the liquid pump 10 is connected with a direct current power supply 11 through a lead, the cleaning liquid is pumped into the accommodating cavity 102 by the liquid pump 10 and flows through the central liquid outlet hole 401 through the central through hole 301 and then flows out of the drill bit 4, so that when the bone is drilled, debris is washed down by the cleaning liquid, and the problem that the debris is.

Be equipped with first ventilation hole 302 on power shaft 3, the parallel central through-hole 301 in first ventilation hole 302 sets up, be equipped with second ventilation hole 402 on the drill bit 4, the setting of second ventilation hole 402 intercommunication first ventilation hole 302 and parallel center play liquid hole 401, be located the intercommunication passageway 303 that is equipped with the first ventilation hole 302 of intercommunication on the power shaft 3 of bearing room 101, it is equipped with blade 13 to correspond intercommunication passageway 303 position on the power shaft 3, be equipped with inlet channel on the casing 1 between blade 13 and rear end cap 5, the check valve is installed to the inlet channel position, make external gas can enter into bearing room 101. When the power shaft 33 rotates, the blades 131 rotate along with the power shaft, so that positive pressure air pressure is generated in the bearing chamber 101, air flow flows through the first vent hole 302 from the communication channel 303 and then blows out the drill bit 4 through the second vent hole 402, and chips generated by bone drilling are blown off, so that the situation that the chips are remained around or splashed into muscle tissues for a long time and are difficult to clean is avoided. In order to facilitate the use, a button switch can be arranged on the outer surface of the handheld part 2, the button switch is arranged on a connecting line between the direct current power supply 11 and the liquid pump 10 to control the start and stop of the liquid pump 10, when the debris can be removed only by blowing with air flow, the liquid pump 10 can be closed, cleaning liquid is not needed, the cleaning liquid can be saved, and meanwhile, the application range of the invention is expanded.

A positioning pin 12 is arranged between the power shaft 3 and the drill bit 4, so that the first vent hole 302 and the second vent hole 402 can be aligned when the drill bit 4 is replaced or reinstalled, and the central liquid outlet hole 401 and the central through hole 301 can be aligned, so that cleaning liquid and air flow can be smoothly discharged.

Example 3

The invention provides an orthopedic bone drilling device, which is basically the same as the second embodiment in structure, and is characterized in that on the basis of the second embodiment, the following improvements are made, so that the service performance is further improved:

as shown in fig. 3, be equipped with the first baffle 14 of vertical setting in the collecting box 003, first baffle 14 separates collecting box 003 for collecting the chamber and purifying the chamber, the chamber is collected in the back flow 004 intercommunication, be equipped with pellicle 15 on the first baffle 14, specific saying so, be equipped with the hole with 15 shape looks adaptations of pellicle on the first baffle 14, pellicle 15 is then installed in the hole position, pellicle 15 is the standard product, can purchase the use from the market as required, during the use, according to the reverse osmosis principle, the washing liquid can permeate to purifying the intracavity, in order to be ready for cyclic utilization.

The collection intracavity is equipped with the second baffle 16 of horizontal setting, and the second baffle 16 will collect the chamber and separate for the converging cavity and the sedimentation chamber that set up from top to bottom, is equipped with a plurality of filter holes that communicate converging cavity and sedimentation chamber on the second baffle 16, and the sclerotin can enter into the sedimentation chamber through the filter hole, concentrates after deposiing and collects.

Be equipped with a plurality of magnetic stirrers 17 in the chamber of converging, can carry out intensive mixing to the mixture of the intracavity of converging, avoided the precipitate to block up filtration pore and pellicle 15. The magnetic stirrer 17 has the advantages of corrosion resistance, acid and alkali resistance, high temperature resistance, large rotating torque, no toxicity, stable operation and the like, has A, B, C and other types, has standard products on the market, can be selected and used by a person skilled in the art according to needs, and is not described in detail herein.

The position of pellicle 15 corresponds with the position in confluence chamber, and the position of pellicle 15 is higher than second baffle 16, can the fully permeable washing liquid to effectively avoided the precipitate to block up pellicle 15, simultaneously, magnetic stirrers 17 can strike collision pellicle 15, makes the impurity of attaching to on pellicle 15 drop, has guaranteed pellicle 15's reverse osmosis efficiency.

In order to use conveniently, a suction pipe 18 is inserted on the collection box 003, one end of the suction pipe 18 is inserted into the purification cavity, and a capsule 19 is arranged at the other end of the suction pipe 18, so that the cleaning liquid in the purification cavity can be sucked out for taking and conveying.

Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims

1. The bone drilling device for the department of orthopaedics is characterized by comprising a handheld bone drill and a bearing disc arranged below a drilled bone body, wherein the handheld bone drill comprises a shell, a front end cover and a rear end cover are respectively arranged at two ends of the shell, a bearing chamber is arranged between the front end cover and the rear end cover, a power shaft is rotatably arranged in the shell and penetrates through the bearing chamber, a drill bit is arranged at one end, extending out of the front end cover, of the power shaft, a handheld part is fixedly arranged on the shell, a motor connected with a direct current power supply is arranged in the handheld part, and the motor is in transmission connection with the power shaft; the drill bit is characterized in that the upper part of the bearing disc is open and corresponds to the position of the drill bit, the bottom of the bearing disc is provided with a converging hole, the converging hole is connected with the collecting box through a return pipe, the open end of the bearing disc is fixedly provided with a corrugated connecting sleeve, and the top end of the corrugated connecting sleeve is provided with a binding belt for binding the corrugated connecting sleeve on a drilled bone body.

2. The orthopedic bone drilling device according to claim 1, wherein the hand-held part has a hand-held cavity, a partition plate is arranged in the hand-held cavity, the partition plate divides the hand-held cavity into a power cavity and a liquid storage cavity, and the direct current power supply and the motor are both arranged in the power cavity.

3. An orthopedic bone drilling device according to claim 2, wherein an axially extending central through hole is provided on the power shaft, a central liquid outlet hole communicated with the central through hole is provided on the drill bit, an accommodating cavity is provided between the rear end cap and the end portion of the transmission shaft, the central through hole is communicated with the accommodating cavity, a cleaning liquid is contained in the liquid storage cavity, a liquid pump is installed in the liquid storage cavity, and the liquid pump is communicated with the accommodating cavity through a liquid transfer tube.

4. The orthopedic bone drilling device according to claim 3, wherein a first ventilation hole is arranged on the power shaft, the first ventilation hole is parallel to the central through hole, a second ventilation hole is arranged on the drill bit, the second ventilation hole is communicated with the first ventilation hole and is parallel to the central liquid outlet hole, a communication channel communicated with the first ventilation hole is arranged on the power shaft in the bearing chamber, and blades are arranged on the power shaft corresponding to the communication channel.

5. The orthopedic bone drilling device of claim 4, wherein a locating pin is provided between the power shaft and the drill bit.

6. An orthopedic bone drilling device according to any one of claims 1 to 5, wherein a first baffle plate is vertically arranged in the collecting tank, the first baffle plate divides the collecting tank into a collecting cavity and a purifying cavity, the return pipe is communicated with the collecting cavity, and a semipermeable membrane is arranged on the first baffle plate.

7. The bone drilling device for orthopedics department of claim 6, characterized in that a second clapboard which is transversely arranged is arranged in the collection cavity, the second clapboard divides the collection cavity into a converging cavity and a settling cavity which are arranged up and down, and a plurality of filter holes which are communicated with the converging cavity and the settling cavity are arranged on the second clapboard.

8. The orthopedic bone drilling device according to claim 7, wherein a plurality of magnetic stirrers are arranged in the confluence chamber.

9. The orthopedic bone drilling device of claim 8, wherein the semi-permeable membrane is positioned to correspond to the manifold chamber.