CN109549682A - A kind of anti-infective structure and anti-infective drill bit - Google Patents
A kind of anti-infective structure and anti-infective drill bit Download PDFInfo
- Publication number
- CN109549682A CN109549682A CN201811437082.0A CN201811437082A CN109549682A CN 109549682 A CN109549682 A CN 109549682A CN 201811437082 A CN201811437082 A CN 201811437082A CN 109549682 A CN109549682 A CN 109549682A
- Authority
- CN
- China
- Prior art keywords
- drill bit
- storage cavity
- medicine storage
- infective
- medicine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/1613—Component parts
- A61B17/1615—Drill bits, i.e. rotating tools extending from a handpiece to contact the worked material
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M31/00—Devices for introducing or retaining media, e.g. remedies, in cavities of the body
Abstract
The present invention relates to the field of medical instrument technology, provide a kind of anti-infective structure and anti-infective drill bit.The anti-infective structure includes: bit body and drill bit shaft, and one end of the drill bit shaft is provided with connector, and the other end of the drill bit shaft is arranged in the bit body；It is provided with medicine storage cavity in the drill bit shaft, the medicine storage cavity is corresponded in the drill bit shaft and is provided with sidewall channels, the sidewall channels are arranged along the axis direction of the drill bit shaft, are provided with multiple medicine balls in the medicine storage cavity.In anti-infective structure provided by the invention, by being arranged medicine ball in drill bit shaft, medicine ball can enter that osseous tunnel is intracavitary from sidewall channels, and the volume of drill bit is greater than minimally invasive drill bit, has many advantages, such as easy to use small with infection risk.
Description
Technical field
The present invention relates to the field of medical instrument technology, more particularly, to a kind of infection risk small anti-infective structure and anti-sense
Contaminate drill bit.
Background technique
The statistical data announced in " the nosocomial infection prevention and treatment application manual " promulgated according to WHO, global patient's postoperative infection
In, 60% bacterium infection is related with clinical treatment instrument.It repairs in arthrocsopic surgery, needs in knee joint cruciate ligament tears
Tunnel is drilled through on shin bone and femur respectively, then implantation of ligament object is fixed in the tunnel of connection.Drill bit is as such hand
Indispensable instrument in art will will lead to patient by bacterium sense if being unable to satisfy antibacterial requirement when with direct body contact
Dye.
In the prior art, infection caused by drilling in clinical operation in order to prevent, during boring osseous tunnel, use is micro-
Wound perforating bur prevents to infect.
Implantation of ligament object is itself divided into head, middle part and the part of tail portion three, be fixed on head diameter in osseous tunnel compared with
It is small, but tail diameter is relatively large.The minimally invasive drill diameter of the prior art is generally 3-5mm (reference
CN207012215U), and right-angled intersection ligament diameter is generally 4-10mm (referring to CN107510520A).Therefore, the prior art
The osseous tunnel that minimally invasive drill bit drills through is unable to satisfy the demand of fixed tough headed and tail portion.Without taking anti-infective measure, then may be used
Patient can be will lead to by bacterium infection, bring pain to patient.
Minimally invasive drill bit is unable to satisfy the demand of fixed ligament in the prior art, and can not be anti-infective, and it is not square that there are uses
Just the problem big with infection risk.
Summary of the invention
Technical problems to be solved
The purpose of the present invention is to provide anti-infective structure is provided with, it is unable to satisfy with solving minimally invasive drill bit in the prior art
The demand of fixed ligament, and can not be anti-infective, there is a problem of that inconvenient to use and infection risk is big.
Technical solution
In order to solve the above technical problems, anti-infective structure provided by the invention includes: bit body and drill bit shaft, the drill bit
One end of bar is provided with connector, and the other end of the drill bit shaft is arranged in the bit body；
It is provided with medicine storage cavity in the drill bit shaft, corresponds to the medicine storage cavity in the drill bit shaft and is provided with sidewall channels, institute
The axis direction that sidewall channels are stated along the drill bit shaft is arranged, and is provided with multiple medicine balls in the medicine storage cavity.
In anti-infective structure provided by the invention, it is provided with medicine storage cavity in the drill bit shaft, corresponds in the drill bit shaft
The medicine storage cavity is provided with sidewall channels, and the sidewall channels are arranged along the axis direction of the drill bit shaft, setting in the medicine storage cavity
There are multiple medicine balls, by being arranged medicine ball in drill bit shaft, medicine ball can enter that osseous tunnel is intracavitary from sidewall channels, the volume of drill bit
Greater than minimally invasive drill bit, have many advantages, such as that easy to use and infection risk is small.
In above-mentioned any scheme, further, in the drill bit shaft corresponds to the medicine storage cavity and be provided with import, it is described
Import is arranged corresponding to the connector.
In above-mentioned any scheme, further, in the medicine storage cavity corresponds to the import and be provided with control valve, it is described
Medicine ball enters the medicine storage cavity by the import and control valve.
In above-mentioned any scheme, further, the control valve can be rotatably arranged at around the drill bit rod axis
Correspond to the import in the medicine storage cavity, on the control valve and is provided with through-hole.
In above-mentioned any scheme, further, the control valve is check valve, and described check valve one end is fixed on described
On medicine storage cavity.
In above-mentioned any scheme, further, the material of the check valve is rubber.
In above-mentioned any scheme, further, the medicine storage cavity is multiple, the number of the sidewall channels and the appearance medicine
The number of chamber is consistent, and multiple medicine storage cavities are uniformly distributed along the circumferential direction of the drill bit shaft.
In above-mentioned any scheme, further, the requirement is with antimicrobial using carboxymethyl chitosan as slow-release auxiliary material
Medicine is carried, a kind of degradable controlled release microballoon is prepared by emulsification and cross linked technique.
In above-mentioned any scheme, further, the antibacterials group is divided into Ofloxacin.
The present invention also provides a kind of anti-infective drill bits, including anti-infective structure as described above.It is provided on bit body
Multiple chip spaces, setting chip space are considered to be worth doing convenient for bone and are discharged along chip space.
Driving device is connect with connector, and driving device drives drill bit shaft rotation, is carried out to the place for needing to bore osseous tunnel
Drilling.
Anti-infective drill bit provided by the invention infuses medicine ball in use, control valve and import by being arranged in drill bit shaft
Enter.Drug exists in the form of sustained-release micro-spheres.On drill bit top, sustained-release micro-spheres injection control valve is set, lower part setting stops partition,
Sidewall channels outer openings are smaller, and it is intracavitary that sustained-release micro-spheres can enter osseous tunnel from opening.Slow releasing pharmaceutical are as follows: with carboxymethyl chitosan
For slow-release auxiliary material, it is to carry medicine with antimicrobial, a kind of degradable controlled release microballoon is prepared by emulsification and cross linked technique；Antibacterials group
Point: preferred Ofloxacin.Medicine ball enters in osseous tunnel out of sidewall channels, and drill bit facilitates operation.
Beneficial effect
By adopting the above technical scheme, described the invention has the following beneficial effects: in anti-infective structure provided by the invention
It is provided with medicine storage cavity in drill bit shaft, corresponds to the medicine storage cavity in the drill bit shaft and is provided with sidewall channels, the sidewall channels are along institute
The axis direction setting of drill bit shaft is stated, multiple medicine balls are provided in the medicine storage cavity, by the way that medicine ball, medicine ball are arranged in drill bit shaft
It can enter that osseous tunnel is intracavitary from sidewall channels, the volume of drill bit is greater than minimally invasive drill bit, has easy to use and infection risk small
The advantages that.
Further, the medicine storage cavity is corresponded in the drill bit shaft and is provided with import, the import corresponds to the company
Fitting setting.
Further, the import is corresponded in the medicine storage cavity and is provided with control valve, the medicine ball passes through the import
Enter the medicine storage cavity with control valve.
Further, the medicine storage cavity is multiple, and the number of the sidewall channels is consistent with the number of the medicine storage cavity, multiple
Medicine storage cavity is uniformly distributed along the circumferential direction of the drill bit shaft.
Detailed description of the invention
It below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the schematic perspective view of anti-infective structure provided in an embodiment of the present invention；
Fig. 2 is the positive structure schematic of anti-infective structure provided in an embodiment of the present invention；
Fig. 3 is the positive structure schematic that medicine ball is provided in anti-infective structure provided in an embodiment of the present invention；
Fig. 4 is the structural schematic diagram of medicine storage cavity in anti-infective structure provided in an embodiment of the present invention.
Appended drawing reference:
1- bit body；2- drill bit shaft；3- connector；
4- sidewall channels；5- stops partition；6- control valve；
7- medicine ball；8- import；9- medicine storage cavity.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " vertical ",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
In order to solve the demand that minimally invasive drill bit in the prior art is unable to satisfy fixed ligament, and can not be anti-infective, exist
The inconvenient to use and big problem of infection risk.Specific embodiment is as follows.
Embodiment one
Fig. 1 is the schematic perspective view of anti-infective structure provided in an embodiment of the present invention；Fig. 2 mentions for the embodiment of the present invention
The positive structure schematic of the anti-infective structure supplied；Fig. 3 is to be provided with medicine ball in anti-infective structure provided in an embodiment of the present invention
Positive structure schematic；Fig. 4 is the structural schematic diagram of medicine storage cavity in anti-infective structure provided in an embodiment of the present invention.
As shown in Figures 1 to 4, anti-infective structure provided by the invention includes: bit body 1 and drill bit shaft 2, the drill bit shaft
2 one end is provided with connector 3, and the other end of the drill bit shaft 2 is arranged in the bit body 1；
It is provided with medicine storage cavity 9 in the drill bit shaft 2, corresponds to the medicine storage cavity 9 in the drill bit shaft 2 and is provided with sidewall channels
4, the sidewall channels 4 are arranged along the axis direction of the drill bit shaft 2, are provided with multiple medicine balls 7 in the medicine storage cavity 9.
In anti-infective structure provided by the invention, it is provided with medicine storage cavity 9 in the drill bit shaft 2, is corresponded in the drill bit shaft 2
The medicine storage cavity 9 is provided with sidewall channels 4, the sidewall channels 4 are arranged along the axis direction of the drill bit shaft 2, the medicine storage cavity 9
Multiple medicine balls 7 are inside provided with, by the way that medicine ball 7 is arranged in drill bit shaft 2, medicine ball 7 can enter osseous tunnel chamber from sidewall channels 4
Interior, the volume of drill bit is greater than minimally invasive drill bit, has many advantages, such as that easy to use and infection risk is small.
The diameter of sidewall channels is less than the diameter of medicine ball, prevents medicine ball from falling off, but due to patient itself during brill
Marrow or certain liq is added dissolution release is carried out to medicine ball, antibacterial and aseptic effect are carried out to osseous tunnel.
Multiple medicine balls 7 are arranged along the axis direction of sidewall channels 4.
Fixing piece is provided among drill bit shaft 2, fixing piece is fixedly connected with bit body 1 and connector 3 respectively, drill bit shaft 2
It is provided between side wall and fixing piece and stops partition 5, stop to be medicine storage cavity 9 between partition 5 and 2 other end of drill bit shaft.
The diameter of bit body 1 is 4-10mm in drill bit, or is arranged according to demand, and the diameter of bit body 1 is greater than minimally invasive drill bit
Diameter, larger-diameter tunnel can be bored, convenient for fixed ligament.
In above-mentioned any scheme, further, in the drill bit shaft 2 corresponds to the medicine storage cavity 9 and is provided with import 8,
The import 8 is arranged corresponding to the connector 3.
Drill bit shaft 2 can be put into drill bit from the import 8 by medicine ball 7 corresponding to import 8 is provided on the end face of connector 3
It is interior.Setting import 8 is used for multiple times convenient for anti-infective drill bit, save the cost.After drill bit after last time use is carried out disinfection, it is put into
Medicine ball 7 can be used.
In above-mentioned any scheme, further, corresponds to the import 8 in the medicine storage cavity 9 and is provided with control valve 6,
The medicine ball 7 enters the medicine storage cavity 9 by the import 8 and control valve 6.
Medicine ball 7 can be filled in by control valve 6, while control valve 6 can prevent medicine ball 7 from falling from import 8.
In above-mentioned any scheme, further, the control valve 6 can be rotationally arranged around 2 axis of drill bit shaft
Correspond to the import 8 in the medicine storage cavity 9, on the control valve 6 and is provided with through-hole.
Control valve 6 can around fixing piece rotate be arranged, control valve 6 turn to through-hole it is corresponding with 8 pairs of import when medicine ball 7 from into
Mouth 8 enters medicine storage cavity 9 by through-hole.After placing, it is not corresponding with import 8 that rotation valve turns to no through-hole, and placement medicament exists
When drill bit rotates, thrown away from import 8.
In above-mentioned any scheme, further, the medicine storage cavity 9 is multiple, the number and the appearance of the sidewall channels 4
The number of medicine cavity 9 is consistent, and multiple medicine storage cavities 9 are uniformly distributed along the circumferential direction of the drill bit shaft 2.
In above-mentioned any scheme, further, the requirement is with antimicrobial using carboxymethyl chitosan as slow-release auxiliary material
Medicine is carried, a kind of degradable controlled release microballoon is prepared by emulsification and cross linked technique.
In above-mentioned any scheme, further, the antibacterials group is divided into Ofloxacin.
The present invention also provides a kind of anti-infective drill bits, including anti-infective structure as described above.For the ease of chip removal, bore
Multiple chip spaces are provided on head body 1, setting chip space is considered to be worth doing convenient for bone and is discharged along chip space.
Driving device is connect with connector 3, driving device drive drill bit shaft 2 rotate, to need to bore osseous tunnel place into
Row drilling.
Embodiment two
In order to enable structure is simpler, in above-mentioned any scheme, further, the control valve 6 is check valve, institute
Check valve one end is stated to be fixed on the medicine storage cavity 9.The other end can move inward, and be filled in medicine ball 7 in check valve by tool,
Check valve can prevent medicine ball 7 from throwing away from import 8.
It is subject to Fig. 4, check valve is vertically installed with connector, and connector setting is led in left side, check valve setting on right side
Medicine ball is filled in medicine storage cavity 9 by the import for crossing right side, and check valve is tilted to the left.
Embodiment three
For the ease of being put into medicine ball 7, in above-mentioned any scheme, further, the material of the check valve is rubber.It is single
It is also possible to other to valve and teaches soft material, convenient for is put into medicine ball.Remaining same above-described embodiment.
Anti-infective drill bit provided by the invention is in use, pass through the control valve 6 being arranged in drill bit shaft 2 and import 8, by medicine ball
7 injections.Drug exists in the form of sustained-release micro-spheres.Drill bit top be arranged sustained-release micro-spheres injection control valve 6, lower part setting stop every
Piece, 4 outer openings of sidewall channels are smaller, and it is intracavitary that sustained-release micro-spheres can enter osseous tunnel from opening.Slow releasing pharmaceutical are as follows: with carboxymethyl shell
Glycan is slow-release auxiliary material, is to carry medicine with antimicrobial, is prepared into a kind of degradable controlled release microballoon by emulsification and cross linked technique；Antimicrobial
Object component: preferred Ofloxacin.Medicine ball enters in osseous tunnel out of sidewall channels, and drill bit facilitates operation.
In conclusion being provided with medicine storage cavity 9, the drill bit in the drill bit shaft 2 in anti-infective structure provided by the invention
Correspond to the medicine storage cavity 9 on bar 2 and be provided with sidewall channels 4, the sidewall channels 4 are arranged along the axis direction of the drill bit shaft 2, institute
It states and is provided with multiple medicine balls 7 in medicine storage cavity 9, by the way that medicine ball 7 is arranged in drill bit shaft 2, medicine ball 7 can enter from sidewall channels 4
Osseous tunnel is intracavitary, and the volume of drill bit is greater than minimally invasive drill bit, has many advantages, such as that easy to use and infection risk is small.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of anti-infective structure characterized by comprising bit body and drill bit shaft, one end of the drill bit shaft are provided with company
The other end of the drill bit shaft is arranged in fitting, the bit body；
It is provided with medicine storage cavity in the drill bit shaft, corresponds to the medicine storage cavity in the drill bit shaft and is provided with sidewall channels, the side
Wall trench is arranged along the axis direction of the drill bit shaft, is provided with multiple medicine balls in the medicine storage cavity.
2. anti-infective structure according to claim 1, which is characterized in that correspond to the medicine storage cavity in the drill bit shaft and set
It is equipped with import, the import is arranged corresponding to the connector.
3. anti-infective structure according to claim 2, which is characterized in that correspond to the import in the medicine storage cavity and be arranged
There is control valve, the medicine ball enters the medicine storage cavity by the import and control valve.
4. anti-infective structure according to claim 3, which is characterized in that the control valve can be around the drill bit rod axis
It is rotatably arranged in the medicine storage cavity, the import is corresponded on the control valve and is provided with through-hole.
5. anti-infective structure according to claim 3, which is characterized in that the control valve is check valve, the check valve
One end is fixed on the medicine storage cavity.
6. anti-infective structure according to claim 5, which is characterized in that the material of the check valve is rubber.
7. anti-infective structure according to claim 1, which is characterized in that the medicine storage cavity be it is multiple, the sidewall channels
Number is consistent with the number of the medicine storage cavity, and multiple medicine storage cavities are uniformly distributed along the circumferential direction of the drill bit shaft.
8. anti-infective structure according to claim 1, which is characterized in that the requirement is that sustained release is auxiliary with carboxymethyl chitosan
Material is to carry medicine with antimicrobial, is prepared into a kind of degradable controlled release microballoon by emulsification and cross linked technique.
9. anti-infective structure according to claim 8, which is characterized in that the antibacterials group is divided into Ofloxacin.
10. a kind of anti-infective drill bit, including anti-infective structure as described in any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811437082.0A CN109549682A (en) | 2018-11-28 | 2018-11-28 | A kind of anti-infective structure and anti-infective drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811437082.0A CN109549682A (en) | 2018-11-28 | 2018-11-28 | A kind of anti-infective structure and anti-infective drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109549682A true CN109549682A (en) | 2019-04-02 |
Family
ID=65867712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811437082.0A Pending CN109549682A (en) | 2018-11-28 | 2018-11-28 | A kind of anti-infective structure and anti-infective drill bit |
Country Status (1)
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| CN (1) | CN109549682A (en) |
Citations (7)
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|---|---|---|---|---|
| KR19990069304A (en) * | 1998-02-06 | 1999-09-06 | 김윤 | Sustained release implant composition for inflammation treatment |
| US20040064058A1 (en) * | 2001-10-24 | 2004-04-01 | Mckay William F. | Methods and instruments for treating pseudoarthrosis |
| US20080215010A1 (en) * | 2004-02-26 | 2008-09-04 | Silver Theodore A | Apparatus and method for using an intraosseous space for moving fluid into and out of the body |
| CN101273913A (en) * | 2008-04-11 | 2008-10-01 | 徐谦 | Intramedullary nail device and medication thereof |
| US20110218644A1 (en) * | 2010-03-05 | 2011-09-08 | Biomet Manufacturing Corp. | Drug delivery and diagnostic system for orthopedic implants |
| US20180015055A1 (en) * | 2015-01-26 | 2018-01-18 | Institute For Clinical Pharmacodynamics, Inc. | Method for shortening anti-infective therapy duration in subjects with infection |
| CN209437323U (en) * | 2018-11-28 | 2019-09-27 | 北京天星博迈迪医疗器械有限公司 | A kind of anti-infective structure and anti-infective drill bit |
-
2018
- 2018-11-28 CN CN201811437082.0A patent/CN109549682A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990069304A (en) * | 1998-02-06 | 1999-09-06 | 김윤 | Sustained release implant composition for inflammation treatment |
| US20040064058A1 (en) * | 2001-10-24 | 2004-04-01 | Mckay William F. | Methods and instruments for treating pseudoarthrosis |
| US20080215010A1 (en) * | 2004-02-26 | 2008-09-04 | Silver Theodore A | Apparatus and method for using an intraosseous space for moving fluid into and out of the body |
| CN101273913A (en) * | 2008-04-11 | 2008-10-01 | 徐谦 | Intramedullary nail device and medication thereof |
| US20110218644A1 (en) * | 2010-03-05 | 2011-09-08 | Biomet Manufacturing Corp. | Drug delivery and diagnostic system for orthopedic implants |
| US20180015055A1 (en) * | 2015-01-26 | 2018-01-18 | Institute For Clinical Pharmacodynamics, Inc. | Method for shortening anti-infective therapy duration in subjects with infection |
| CN209437323U (en) * | 2018-11-28 | 2019-09-27 | 北京天星博迈迪医疗器械有限公司 | A kind of anti-infective structure and anti-infective drill bit |
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