CN210990569U - Adjustable-depth double-step combined skull drill bit suitable for DBS (surgical site planning) operation - Google Patents
Adjustable-depth double-step combined skull drill bit suitable for DBS (surgical site planning) operation Download PDFInfo
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- CN210990569U CN210990569U CN201921656926.0U CN201921656926U CN210990569U CN 210990569 U CN210990569 U CN 210990569U CN 201921656926 U CN201921656926 U CN 201921656926U CN 210990569 U CN210990569 U CN 210990569U
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Abstract
The utility model discloses an adjustable degree of depth double step combination formula skull drill suitable for DBS operation, wherein: the bone hole drill structure comprises a bone hole drill structure and a step drill structure, the bone hole drill structure comprises a connecting rod, a drill handle and a cutter head, the connecting rod is used for being connected with an external hand drill handle power system, an axial strip-shaped clamping table is formed in one side face of the drill handle in an inscribing mode, a transverse scale strip is arranged on the axial strip-shaped clamping table, the step drill structure comprises a drill sleeve, a fastening screw hole and a cutter head, the bone hole drill structure and the step drill structure can be fixed into a whole, the connecting rod can drive the cutter head and the cutter head to rotate simultaneously, the cutter head and the cutter head grind the skull at different heights respectively, and double steps are formed on the skull. The utility model has the advantages of can sink DBS operation electrode base in skull local plane, make the base fixed and do not stand out in the skull surface, reach not only beautifully but also do not influence the incision healing.
Description
Technical Field
The utility model belongs to the technical field of medical instrument, concretely relates to adjustable degree of depth double step combination formula skull drill suitable for DBS operation.
Background
Deep Brain Stimulation (DBS) surgery is recognized worldwide for the treatment of various psychologic diseases including dyskinetic diseases typified by parkinson's disease. When in operation, the skull needs to be drilled, the base is fixed on the surface of the skull, and then the electrode is implanted, the thickness of the current base reaches about 4mm, so that the base is not beautiful, the healing of wounds is influenced, and the psychology of a patient after the operation is also adversely affected.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that to above-mentioned prior art not enough, provide a special drill bit of modular two step skull DBS, have can sink into skull local plane with DBS operation electrode base in, make the base fixed and do not stand out in the skull surface, reach not only beautifully but also do not influence the advantage of incision healing.
In order to realize the technical purpose, the utility model discloses the technical scheme who takes does:
an adjustable depth double step combination cranial drill suitable for DBS surgery wherein: the bone hole drill structure comprises a bone hole drill structure and a step drill structure, wherein the bone hole drill structure comprises a connecting rod, a drill handle and a cutter head which are sequentially connected from back to front, the connecting rod is used for being connected with an external hand-operated drill handle power system, an axial strip-shaped clamping table is formed in one side face of the drill handle in an inscribed mode, a transverse scale strip is arranged on the axial strip-shaped clamping table, the step drill structure comprises a drill sleeve, a fastening screw hole and a cutter head, the drill sleeve and the cutter head are of an integral structure, the cutter head is fixed at the front end of the drill sleeve, the drill sleeve and the cutter head penetrate through a drill passing hole on a central shaft, the fastening screw hole is arranged on the side face of the drill sleeve and communicated with the drill passing hole, the bone hole drill structure can penetrate through the step drill structure from the drill passing hole, so that the drill handle is positioned in the drill passing hole, the connecting rod is positioned at, the fastener can penetrate fastening screw hole and fastening screw hole screw-thread fit, and fastener front end screw in drill bit passes the hole, when withstanding the drill bit handle that is arranged in the drill bit passes the hole, still with the cooperation of axial bar ka tai block, thereby make bone hole drill bit structure and step drill structure fixed as an organic whole, when external hand drill bit activity force system drove the connecting rod and rotate, the connecting rod can drive tool bit and blade disc and rotate simultaneously, make tool bit and blade disc grind the skull respectively at the co-altitude, form the double step on the skull.
In order to optimize the technical scheme, the specific measures adopted further comprise:
foretell axial bar card platform extends to drill handle rear end from drill handle middle part, and the drill bit passes the hole and is provided with the arch corresponding with axial bar card platform, and the bone hole drill bit structure passes the hole front end from the drill bit and inserts, passes the hole rear end slip in-process to the drill bit, and the arch can block at the front end of axial bar card platform to make bone hole drill bit structure can't pass the hole rear end roll-off from the drill bit.
The drill bit penetrates through the hole to form a protruding platform, the platform enters into a groove formed in the drill bit handle by the axial strip-shaped clamping table, and the bone hole drill bit structure and the step drill structure are prevented from slipping when rotating.
When the bone hole drill bit structure and the step drill structure are fixed together, the scale strip is partially exposed out of the rear part of the drill bit sleeve, and is partially positioned in the drill bit through hole.
The front end of the fastener can be abutted to the position between the adjacent scale bars, so that the fixing force of the fastener and the bone hole drill bit structure is increased.
The fastener is a screw.
The diameter of the cutter head is suitable for the diameter of the electrode base for DBS operation.
The utility model discloses a two step combination formula skull drill bits of adjustable degree of depth suitable for DBS operation mainly includes bone hole drill bit structure and step and bores two parts of structure. The bone hole drill bit structure and the step drill structure are mutually nested and fixed, so that a double-skiving structure of a cutter head and a cutter head can be formed, the cutter head is arranged in front of the cutter head, the diameter of the cutter head is larger than that of the cutter head, the cutter head and the cutter head can respectively abrade the skull at different heights, double steps are formed on the skull, the electrode base for DBS operation is placed on the double steps, the base is made to sink into the local plane of the skull and not to protrude out of the surface of the skull, and the advantages of attractiveness and no influence on the healing of incisions are achieved. The utility model discloses be provided with horizontal scale strip on axial bar ka tai, can carry out drill bit length control to reach the purpose of two step degree of depth adjustable, during the use, can select suitable tool bit length according to the condition of patient skull thickness, then according to the instruction of scale strip, insert the drill bit with the drill bit handle and pass the suitable degree of depth of hole, it is fixed mutually with bone hole drill bit structure and step drill structure through the screw.
Drawings
FIG. 1 is a schematic structural view of a bone hole drill configuration;
FIG. 2 is a schematic structural view of a step drill structure;
fig. 3 is a schematic view of a bone hole drill bit configuration and a step drill configuration secured to one another.
The reference signs are: the bone hole drill structure 1, the connecting rod 11, the drill handle 12, the axial strip-shaped clamping table 12a, the scale bar 12b, the tool bit 13, the step drill structure 2, the drill sleeve 21, the drill passing hole 21a, the bulge 21b, the platform 21c, the fastening screw hole 22 and the cutter head 23.
Detailed Description
Embodiments of the present invention are described in further detail below with reference to the accompanying drawings.
The adjustable-depth double-step combined skull drill suitable for DBS surgery comprises the following components: the bone hole drill structure comprises a bone hole drill structure 1 and a step drill structure 2, wherein the bone hole drill structure 1 comprises a connecting rod 11, a drill handle 12 and a cutter head 13 which are sequentially connected from back to front, the connecting rod 11 is used for being connected with an external hand drill handle power system, one side surface of the drill handle 12 is internally tangent to form an axial strip-shaped clamping table 12a, a transverse scale strip 12b is arranged on the axial strip-shaped clamping table 12a, the step drill structure 2 comprises a drill sleeve 21, a fastening screw hole 22 and a cutter head 23, the drill sleeve 21 and the cutter head 23 are of an integral structure, the cutter head 23 is fixed at the front end of the drill sleeve 21, the drill sleeve 21 and the cutter head 23 penetrate through a drill penetrating hole 21a on a central shaft, the fastening screw hole 22 is arranged on the side surface of the drill sleeve 21, the fastening screw hole 22 is communicated with the drill penetrating hole 21a, the bone hole drill structure 1 can penetrate through the step drill structure, make drill bit handle 12 be located the drill bit and pass hole 21a, connecting rod 11 is located the rear portion of blade disc 23, tool bit 13 is located blade disc 23 front portion, the diameter of tool bit 13 is less than the diameter of blade disc 23, the fastener can penetrate fastening screw hole 22 and fastening screw hole 22 screw-thread fit, and fastener front end screw in drill bit passes hole 21a, when withstanding the drill bit handle 12 that is located the drill bit and passes hole 21a, still with axial bar ka tai 12a block cooperation, thereby make bone hole drill bit structure 1 fixed as an organic whole with step drill structure 2, when external hand drill bit handle activity force system drives connecting rod 11 and rotates, connecting rod 11 can drive tool bit 13 and blade disc 23 and rotate simultaneously, make tool bit 13 and blade disc 23 grind on different height respectively, form the double step on the skull.
In the embodiment, the axial bar-shaped clamping platform 12a extends from the middle of the drill bit handle 12 to the rear end of the drill bit handle 12, the drill bit penetrates through the hole 21a and is provided with a protrusion 21b corresponding to the axial bar-shaped clamping platform 12a, the bone hole drill bit structure 1 is inserted from the front end of the drill bit penetrating through the hole 21a, and in the process of sliding towards the rear end of the drill bit penetrating through the hole 21a, the protrusion 21b can be clamped at the front end of the axial bar-shaped clamping platform 12a, so that the bone hole drill bit structure 1 cannot slide out from the drill bit penetrating through the.
In an embodiment, the drill bit is formed with a raised platform 21c within the bore 21a, the platform 21c intruding into a recess formed in the drill bit shank 12 by the axial strip 12a to prevent slippage of the bone hole drill structure 1 and the step drill structure 2 during rotation.
In the embodiment, when the bone hole drilling structure 1 and the step drill structure 2 are fixed together, the scale bar 12b is partially exposed behind the drilling sleeve 21 and partially positioned in the drilling through hole 21 a.
In an embodiment, the front end of the fastener can abut into a position between the adjacent scale bars 12b, so that the fixing force of the fastener and the bone hole drill structure 1 is increased.
In an embodiment, the fastener is a screw.
In one embodiment, the diameter of the cutter head 23 is adapted to the diameter of the electrode base for DBS surgery.
The embodiment discloses a depth-adjustable double-step combined skull drill suitable for DBS surgery, which mainly comprises a bone hole drill structure 1 and a step drill structure 2.
Referring to fig. 1, the bone hole drill structure 1 is mainly composed of a connecting rod 11, a drill handle 12 and a cutter head 13. Wherein, the connecting column 11 adopts a hand drill handle/power system which can be matched with the limiting structure.
The drill shank 12 is provided with an axial strip-shaped chuck 12a which cooperates with the projection 21b and the platform 21c for adjusting the stop depth and preventing the step drill structure 2 from rotating and sliding during drilling.
The cutting head 13 is of a conventional burr drill design.
As shown in fig. 2, the stepped drill structure 2 is mainly composed of a drill sleeve 21, a fastening screw hole 22, and a cutter head 23.
Wherein the drill sleeve 21 is provided with a platform 21c preventing the bone hole drill structure 1 from sliding rotationally during drilling.
The fastening screw hole 22 can be screwed with a screw to fix the bone hole drill 1 and the step drill 2.
The cutter head 23 plays a role of cutting skull.
The utility model discloses a concrete method of use:
the hard film is reached with the special drill bit drilling depth of conventional 14mm diameter DBS at first in the operation, then changes the utility model discloses a combination formula double step drill bit to bore bone hole drill bit structure 1 and step drill structure 2 as figure 3 mode combination, start hand drill handle/driving system, grind the drilling, according to scale of scale bar 12b, drilling depth is about adjustable range 0.0-20.0mm (according to the whole thickness adjustment of patient skull), and tool bit 13 and blade disc 23 grind out double step hole in drilling department, can install the electrode base after stanching.
Above only the utility model discloses an it is preferred embodiment, the utility model discloses a scope of protection not only limits in above-mentioned embodiment, and the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, a plurality of modifications and decorations without departing from the principle of the present invention should be considered as the protection scope of the present invention.
Claims (7)
1. A double-step combined skull drill with adjustable depth suitable for DBS surgery is characterized in that: constitute by bone hole drill bit structure (1) and step drill structure (2) two parts, bone hole drill bit structure (1) including from back connecting rod (11), drill handle (12) and tool bit (13) that connect gradually before to, connecting rod (11) be used for with external hand drill handle power system connection, a side inscribe of drill handle (12) form axial bar ka tai (12a), axial bar ka tai (12a) on be provided with horizontal scale strip (12b), step drill structure (2) constitute by drill sleeve (21), fastening screw hole (22) and blade disc (23), drill sleeve (21) and blade disc (23) structure as an organic whole, blade disc (23) are fixed in drill sleeve (21) front end, drill sleeve (21) and blade disc (23) have run through the drill bit to pass through hole (21a) on the center pin, the side of seting up at drill bit sleeve (21) fastening screw hole (22), fastening screw hole (22) and drill bit pass hole (21a) intercommunication, bone hole drill bit structure (1) can pass hole (21a) from the drill bit and pass step drill structure (2) for drill bit handle (12) are located the drill bit and pass hole (21a), and connecting rod (11) are located the rear portion of blade disc (23), and tool bit (13) are located blade disc (23) front portion, the diameter of tool bit (13) be less than the diameter of blade disc (23), the fastener can penetrate fastening screw hole (22) and fastening screw hole (22) screw-thread fit, and fastener front end screw in drill bit passes hole (21a), withhold the drill bit handle (12) that is located the drill bit and passes hole (21a) in the time, still with axial bar ka tai (12a) block cooperation, thereby make bone hole drill bit structure (1) and step drill structure (2) fixed as an organic whole, when the external hand drill handle power system drives the connecting rod (11) to rotate, the connecting rod (11) can drive the cutter head (13) and the cutter head (23) to rotate simultaneously, so that the cutter head (13) and the cutter head (23) grind the skull respectively at different heights, and double steps are formed on the skull.
2. The adjustable depth double step combination cranial drill bit suitable for DBS surgery of claim 1, wherein: axial bar ka tai (12a) extend to drill handle (12) rear end from drill handle (12) middle part, the drill bit pass hole (21a) and be provided with protruding (21b) corresponding with axial bar ka tai (12a), bone hole drill bit structure (1) pass hole (21a) front end from the drill bit and insert, pass the hole (21a) rear end slip in-process to the drill bit, protruding (21b) can block at the front end of axial bar ka tai (12a) to make bone hole drill bit structure (1) can't pass hole (21a) rear end roll-off from the drill bit.
3. The adjustable depth double step combination cranial drill bit suitable for DBS surgery of claim 2, wherein: the drill bit penetrates through the hole (21a) to form a protruding platform (21c), and the platform (21c) invades into a groove formed on the drill bit handle (12) by the axial strip-shaped clamping platform (12a) to prevent the bone hole drill bit structure (1) and the step drill structure (2) from slipping during rotation.
4. The adjustable depth double step combination cranial drill according to claim 3, wherein: when the bone hole drill structure (1) and the step drill structure (2) are fixed together, the scale strip (12b) is partially exposed behind the drill sleeve (21) and is partially positioned in the drill through hole (21 a).
5. The adjustable depth double step combination cranial drill according to claim 4, wherein: the front end of the fastener can be pressed into the position between the adjacent scale bars (12b), and the fixing force of the fastener and the bone hole drill bit structure (1) is increased.
6. The adjustable depth double step combination cranial drill according to claim 5, wherein: the fastener is a screw.
7. The adjustable depth double step combination cranial drill bit suitable for DBS surgery of claim 6, wherein: the diameter of the cutter head (23) is adapted to the diameter of the electrode base for DBS operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921656926.0U CN210990569U (en) | 2019-09-30 | 2019-09-30 | Adjustable-depth double-step combined skull drill bit suitable for DBS (surgical site planning) operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921656926.0U CN210990569U (en) | 2019-09-30 | 2019-09-30 | Adjustable-depth double-step combined skull drill bit suitable for DBS (surgical site planning) operation |
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| Publication Number | Publication Date |
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| CN210990569U true CN210990569U (en) | 2020-07-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921656926.0U Active CN210990569U (en) | 2019-09-30 | 2019-09-30 | Adjustable-depth double-step combined skull drill bit suitable for DBS (surgical site planning) operation |
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| CN (1) | CN210990569U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113208688A (en) * | 2021-03-19 | 2021-08-06 | 桂林医学院 | Skull incision equipment |
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2019
- 2019-09-30 CN CN201921656926.0U patent/CN210990569U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113208688A (en) * | 2021-03-19 | 2021-08-06 | 桂林医学院 | Skull incision equipment |
| CN113208688B (en) * | 2021-03-19 | 2022-08-16 | 桂林医学院 | Skull incision equipment |
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