CN110916751A - Bone drilling cover device - Google Patents
Bone drilling cover device Download PDFInfo
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- CN110916751A CN110916751A CN201811095763.3A CN201811095763A CN110916751A CN 110916751 A CN110916751 A CN 110916751A CN 201811095763 A CN201811095763 A CN 201811095763A CN 110916751 A CN110916751 A CN 110916751A
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- 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
- A61B17/1655—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans for tapping
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- 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
- A61B17/1695—Trepans or craniotomes, i.e. specially adapted for drilling thin bones such as the skull
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Abstract
The invention relates to a bone drilling cover device, which at least comprises an upper packing part and a lower packing part, wherein the upper packing part is provided with a first base part and a first combining part; the lower forcing piece at least comprises a second base part and a second combining part combined with the first combining part; the second base part is composed of at least one first arm and at least one second arm, the total length formed by the first arm and the second arm is larger than the diameter of the drilled hole, and the length of the first arm is controlled to be larger than that of the second arm; therefore, the first arm and the second arm can be arranged in a long and short manner, the first arm and the second arm are obliquely inserted and positioned at the bottom end of the drilled hole, the drilled hole of any part of the bone can be covered and combined, the operation is very quick and convenient, the drilled hole can be maintained at the minimum aperture to reduce the damage to the bone structure to the minimum, in addition, when the skull is fixed for use, the first arm and the second arm can be respectively used for stretching across the skull and the top brake skull, and the universal application range and the efficiency are effectively improved.
Description
Technical Field
The invention relates to a bone drilling and covering device which can improve the application range, share the use range and improve the efficiency.
Background
Taiwan area publication I609670 entitled "skull fixation device and surgical tool" is a patent application, which is an invention developed by the applicant and approved by the jun bureau; the skull fixing device at least comprises a lower packing piece and a movable buckle component, and the whole movable buckle component can be arranged at a certain distance from the outer surface of the skull when being positioned on the outer sleeve, so that the skull can be conveniently implanted and reset.
Although the fixing device can achieve the relative convenience and progress in the clinical operation of fixing the skull; however, the lower fastening member is a circular structure, and the circular outer diameter is larger than the inner diameter of the drill hole, so that the lower fastening member is only suitable for fixing the original cut skull cap back to the skull, and relatively to a single drill hole which is only used for placing a monitor, a probe or a drainage tube for drainage drilling, the lower fastening member cannot be inserted into the skull through the drill hole at all, so that the lower fastening member cannot be suitable for covering the drill hole, and the drill hole must be covered by another object, so that the invention cannot achieve the purpose of fixing the skull or covering the drill hole. Furthermore, for example, in bone grafting, a hole must be drilled in bones such as femur, hand bone, foot bone or sternum at other parts of the human body; or the surgical instrument must be inserted into the adjacent bone to perform the surgical operation, and a bore hole is drilled in the bone to be inserted. The lower tightening of the invention can not be inserted into the single drill hole, and can not be applied to covering the bone with the single drill hole, and if the drill holes are not covered by the covering knots to form a hollow state, soft and hard tissues are easy to fill and influence normal bone hyperplasia, and the drill holes are easy to be damaged by external force under the protection of the uncovered knots, thus being the problem to be solved in the medical field at present.
Disclosure of Invention
In view of the above, the present inventors have made extensive studies and have conducted many tests and improvements to develop the present invention with good versatility and practicability.
In order to achieve the above objects and effects, the technical means adopted by the present invention are:
a bone drilling cover device at least comprises an upper packing part and a lower packing part, wherein the upper packing part is provided with a first base part and a first combining part arranged on the first base part; the lower forcing piece at least comprises a second base part and a second combining part which is arranged on the second base part and can be combined with the first combining part; the second base part is composed of at least one first arm and at least one second arm, the total length formed by the first arm and the second arm is larger than the diameter of the drilled hole, and the length of the first arm is controlled to be larger than that of the second arm to form a long-short configuration.
Bearing: the first combining part and the second combining part are screwed with each other by screw holes and studs.
Bearing: the first combining part is a sleeve ring, the sleeve ring is concavely provided with a concave part with a through hole at the bottom, a screw cap is arranged in the concave part, and the second combining part is a stud which can be screwed with the screw cap.
Bearing: the first combining part is a collar, the inner surface of the concave part is concavely provided with a fastening groove and is matched with a screw cap to be placed in the concave part, the outer surface of the screw cap is convexly provided with a convex ring which can be clamped in the fastening groove for pivot connection, the second combining part is a screw bolt which can be screwed with the screw cap, when the screw cap and the upper forcing piece are pivoted to form the screw cap and the screw bolt to rotate, the upper forcing piece is not synchronously rotated, but can be driven by the screw cap to move up and down.
Bearing: the first combining part is a buckle hole, the second combining part is a slender belt piece, and the belt piece is provided with a clamping part for buckling and positioning the buckle hole.
Bearing: the second arm length is greater than the collar radius.
Bearing: the second arm length is greater than the borehole radius.
Bearing: the first arm and the second arm are sheet bodies with proper width, are arranged in a long and short way by taking the center line of the second combining part as the center, and are connected in an integrated forming way.
Bearing: the first arm and the second arm are sheet bodies with proper width and are arranged in a long and short way by taking the center line of the second combining part as the center, and the first arm and the second arm are separating elements and form movable pivot group connection with the unfolding and folding functions.
Bearing: the first arm is formed by extending the second connecting part, the first arm is concavely provided with a concave part for the second arm to be sleeved and folded, and the second arm is provided with a sleeve part sleeved and connected with the second connecting part and is folded and unfolded by taking the second connecting part as a pivot.
Bearing: the upper end of the screw cap is provided with a first positioning part for combining the surgical tool, and the inner part of the stud is provided with an inner threaded hole for combining the surgical tool.
Bearing: the first positioning part is annularly provided with a concave-convex shape on the periphery of the upper end of the screw cap or is provided with at least two concave hole structures on the end surface, and the internal thread hole of the stud penetrates through the stud and the second base part to form a penetrating drainage channel for placing the drainage tube into the drainage channel.
Bearing: the first base part is provided with a concave or convex first positioning part for combining the operation tool.
Therefore, the first arm and the second arm are configured to form a long and short section, the first arm and the second arm can be smoothly and quickly placed into and positioned at the bottom end in the drill hole as long as the lower forcing piece is inserted towards the drill hole in an inclined mode, the bone drill hole at any position can be covered, the operation is very quick, simple and convenient, the drill hole can be maintained at the minimum aperture, the damage to the bone structure is reduced to the minimum, when the skull is fixed for use, the first arm and the second arm can be further utilized to respectively stretch over the skull of the top brake, the general application range and the efficiency are effectively improved, and the defects of the background technology are improved.
To further clarify the structure, features and other objects of the present invention, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
Drawings
FIG. 1 is a schematic exploded perspective view of the present invention.
FIG. 2 is a bottom exploded perspective view of the present invention.
FIG. 3 is a schematic cross-sectional view of a lower urging member of the present invention.
FIG. 4 is a cross-sectional view of a single-drilled hole cap junction in a bone according to the present invention.
FIG. 5 is a schematic cross-sectional view of the present invention taken along line A-A of FIG. 4.
FIG. 6 is a schematic view of the present invention showing the first arm and the second arm connected at different angles.
FIG. 7 is a schematic view of the first arm and the second arm forming a Y-shaped connection according to the present invention.
FIG. 8 is a schematic view of the first and second arms of the present invention forming a top view of the movable pivot assembly.
Fig. 9 is a schematic cross-sectional view of the folding device of fig. 8.
Fig. 10 is a perspective view of the present invention in combination with a surgical tool.
FIG. 11 is a schematic view of the operation of the lower forcing member of FIG. 9 of the present invention inserted diagonally toward the borehole.
FIG. 12 is a schematic view of the present invention in operation with the first and second arms inserted obliquely into and positioned within the bottom end of the borehole.
FIG. 13 is a perspective view of the surgical tool of FIG. 9 with the movable fastener assembly moved downward to engage the lower fastener to tighten the hole in the cap and then withdraw the fastener.
Fig. 14 is a perspective operational view of a skull bone implanted in a cranial burr hole using fig. 9, in accordance with the present invention.
FIG. 15 is a schematic view of the upper packing member of the present invention offset from the second base portion where a petal is cut to form a notch for insertion of a drainage tube.
FIG. 16 is a schematic view of placement of the drain tube of the present invention into a slot of an upper packing staggered from the second base for spacing.
Fig. 17 is a schematic view of another embodiment of the first and second joining portions of the present invention forming a collar, nut, and stud joint, respectively.
FIG. 18 is a schematic view of the first and second connection portions respectively forming a screw hole and a stud connection.
FIG. 19 shows a first embodiment of the present invention in which the first and second engaging portions form a buckle hole and a strap.
Fig. 20 is a schematic partial cross-sectional view of fig. 18 of the present invention.
FIG. 21 shows a second embodiment of the present invention in which the first and second engaging portions form a buttonhole and a band.
Description of reference numerals: a, a skeleton drilling and covering device; 30, an upper packing piece; 31 a first base; 311 slots; 312 petals; 313 gaps; 314 is opened; 315 a limiting hole; 32. 32A, 32B, 32C, 32D first coupling portions; 321 a buckle groove; 322 recess portion; 324 an internal tangent plane; 323 perforating; 325 clamping part; 33 a nut; 41 a convex ring; 42 a first positioning portion; 50 lower urging members; 51 a second base; 511 a first arm; 512 a second arm; 5111. 5122; a concave portion 5121 sleeve portion; 52. 52A, 52B, 52C, 52D; 521, external section; 322, a fastening part; 53 an internally threaded bore; 531 through holes; 60 an outer sleeve; 70 skull bone; 72 a skull bone; 73, drilling holes; 80 a drainage tube; B. c, surgical tools; a Z centerline; x first arm length; y second arm length; r1 borehole radius; r2 first junction (collar) radius; d the borehole diameter.
Detailed Description
First, it is shown in fig. 1 to 16 that, no matter how to cover the bone drill holes at any position, the connection structure and operation mode of the bone drill hole covering device a and the surgical tool B of the present invention are the same as the related art taiwan area publication I609670 developed by the applicant, which is not repeated herein, and the following description is only briefly made for this part.
The following is directed to embodiments of the present invention for use with a single burr hole cap, as the present invention is applicable to burr hole cap at any portion of the bone, but not limited thereto.
Referring to fig. 1 to 7, a bone drilling and capping device a according to the present invention comprises:
an upper fastening member 30, at least comprising a first base portion 31 and a first combining portion 32 disposed on the first base portion 31, wherein the first base portion 31 is plate-shaped or disk-shaped, a plurality of petals 312 are disposed on the outer periphery of the disk at intervals by a plurality of slots 311, the thickness of the plurality of petals 312 is gradually reduced toward the outer periphery to make the petals easily embedded into the skull 70 to be firmly clamped; the first combining part 32 is a ring with a concave part 322 with a through hole 323 at the bottom, and is matched with a nut 33 to be placed in the concave part 322, and the inner surface of the concave part 322 is recessed to form a buckle slot 321; the through hole 323 is provided with an inner cutting surface 324, the periphery of the upper end of the nut 33 is provided with a first positioning portion 42 for the surgical tool B to combine, preferably, the first positioning portion 42 is provided with a concave-convex shape on the periphery of the upper end of the nut 33 or at least two concave hole structures (not shown) on the lower end surface, the outer surface of the nut 33 is provided with a convex ring 41 pivoted with the fastening groove 321 on the inner surface of the concave portion 322, so that when the nut 33 is screwed and rotated with the second combining portion 52 (stud) of the lower fastening member 50, the upper fastening member 30 is not synchronously rotated, but is driven by the nut 33 to move up and down; and the number of the first and second groups,
a fastening member 50, at least comprising a second base 51 and a second combining portion 52 having a sheet shape with a proper width, wherein the second combining portion 52 is a screw bolt for screwing the screw cap 33, the second combining portion 52 (screw bolt) is internally provided with an internal threaded hole 53 for combining the surgical tool B, the second combining portion 52 (screw bolt) is cut with an external tangent plane 521 corresponding to the internal tangent plane 324 of the through hole 323, the second base 51 is composed of a first arm 511 and at least a second arm 512, the first arm 511 and the second arm 512 are arranged in a long and short way by taking the center line Z of the second combining portion 52 (screw bolt) as the center, the total length X + Y formed by the first arm 511 and the second arm 512 is larger than the diameter D of the drill hole 73, the length X of the first arm is controlled to be larger than the length Y of the second arm, and the length Y of the second arm is controlled to be larger than the radius R1 of the drill hole 73; or the second arm length Y is greater than the radius R2 of the first coupling portion 32 (collar), although the second arm length Y is less than the radius R1 of the bore 73, the surgical operation is performed by displacing the device toward the short side of the second arm 512 after the device is inserted, so that the first coupling portion 32 (collar) abuts against the inner wall of the bore 73, the first arm 511 and the second arm 512 are positioned to cross and engage with the bottom end of the bore 73, and the width of the first base 51 is less than the diameter of the bore 73.
As shown in fig. 5-7, the first arm 511 and the second arm 512 are connected in a straight line shape with the center line Z of the second connecting portion 52 (stud) as the center, or connected at different angles; or form a Y-shaped connection; the first arm 511 and the second arm 512 are integrally formed and connected; or as shown in fig. 8 and 9, the first arm 511 and the second arm 512 are separate components, that is, the first arm 511 is formed by extending the second combining portion 52 (stud), and the first arm 511 is recessed with a recessed portion 5111 for the second arm 512 to telescope in and fold, and the second arm 512 is provided with a sleeve portion 5121 to pivot on the second combining portion 52 (stud), and the second combining portion 52 (stud) is used as a pivot to fold and fold, and as shown in the figure, the second arms 512 are plural, the second arms 512 form an inner sleeve and an outer sleeve to pivot on the second combining portion 52 (stud), and the adjacent lower second arm 512 is also recessed with a recessed portion 5122 for the upper second arm 512 to fold and connect with the movable pivot set.
Referring to fig. 4 to 13, the operation of using the nut to drill a bone is illustrated schematically, first, the bone drilling and covering device a of the present invention is connected and positioned with the surgical tool B to form an integrated assembly, and the present invention is characterized in that the second base 51 of the lower fastening member 50 is a sheet with a suitable width, and the first arm 511 and the second arm 512 are arranged in a long and short manner, so that the first arm 511 and the second arm 512 can be smoothly and quickly placed and positioned in the drill 73 and cross both sides of the bottom end of the drill 73, and then the upper fastening member 30 is driven by the surgical tool B to move down, so that when the nut 33 is screwed with the second fastening portion 52 (stud) of the lower fastening member 50, the nut 33 can synchronously drive the upper fastening member 30 to move down to clamp and position the first arm 511 and the second arm 512, meanwhile, the upper packing member 30 can cover the drill hole 73, and the operation is very convenient and fast.
As shown in FIG. 14, the bone drilling and capping device A of the present invention is first connected to the surgical tool B to form an integral assembly, so that when the bone drilling and capping device A and the surgical tool B are simultaneously implanted into the position of the bore 73 of the skull 70, the second base 51 of the fastening member 50 of the present invention has the first arm 511 and the second arm 512 arranged in a long and short manner, which can respectively cross over the top of the skull 72 and the bottom of the skull 70, and then the surgical tool B drives the upper fastening member 30 to move downwards, so that the nut 33 is screwed with the second coupling portion 52 (stud) to move downwards, which can drive the first arm 511 and the second arm 512 which fasten the upper fastening member 30 and the lower fastening member to generate a clamping force, thereby effectively and stably clamping the skull 72 on the skull 70, and the operation is very convenient and fast.
When the invention is used for fixing the skull and has the function of adding a drainage tube, as shown in fig. 3 and 4, the internal thread hole 53 of the second combining part 52 (stud) continuously penetrates to the second base part 51 to form a through hole 531 for inserting the drainage tube (not shown) for drainage; or as shown in fig. 15, only a petal 312 is cut into the second base part 51 of the upper fastening member 30 at the position staggered from the lower fastening member 50 to form a gap 313, so that the drainage tube 80 can be inserted; or as shown in FIG. 16, the plurality of slots 311 of the upper packing member 30 can be formed into a key hole shape having an opening 314 smaller than the diameter of the drainage tube 80 and a limiting hole 315 larger than the diameter of the drainage tube 80 for the drainage tube 80 to be clamped and limited; therefore, the second base portion 511 of the lower fastening member 50 of the present invention is formed into a sheet with a suitable width, so that the present invention can be applied to any structure shown in fig. 15 and 16, and is not subject to any structural change at all, thereby having a wider application range.
After the bone drilling and covering device A is suitable for covering the drill hole 73 of the bone at any position or fixing the skull 72, the surgical tool B can be quickly taken out of the bone drilling and covering device A only by moving the outer sleeve 60 of the surgical tool B upwards and reversely rotating the surgical tool B in the same way as the background technology; on the contrary, if the bone drilling and capping device A or the skull 72 is to be removed, the device 10 can be removed from the skull (bone) 70 by only the reverse operation, and the present invention is very quick and convenient in both implantation and removal operations.
Compared with other prior art, the bone drilling and covering device A provided by the invention has the following advantages:
1. the lower fastening member 50 of the present invention is configured by the first arm 511 and the second arm 512, and the width of the lower fastening member is smaller than the diameter of the bore 73, so that the first arm 511 and the second arm 512 can be easily inserted into the bottom end of the bore 73 by inserting the lower fastening member 50 obliquely toward the bore 73, the bore 73 of any bone can be covered, the operation is very quick and simple, the bore 73 can be maintained at the minimum diameter, and the damage to the bone structure can be minimized.
2. When the skull drill is used for fixing the skull, the first arm 511 and the second arm 512 can form long and short configurations and respectively cross the top-pulling skull 72 and the skull 70 to be tightly clamped, so that the bone drilling or any bone drilling for fixing the skull can be effectively applicable, and the universal application range and the efficiency are effectively improved.
3. When the drainage tube 80 is required to be additionally arranged for fixing the skull, the second base part 51 is a sheet body with proper width and long and short configuration, so that any additional structure is not required to be changed, only the upper forcing piece 30 is required to be changed, and the effect of effectively saving the manufacturing cost by omitting the change of the lower forcing piece 52 is achieved.
4. The invention not only has the excellent effect progress, but also maintains various effects of the background technology, and the functional benefit is improved and advanced compared with the invention.
In addition to the above-mentioned combination method, as shown in fig. 17, the collar and the nut of the first combination portion 32A are only simply engaged, and the second combination portion 52A is another combination embodiment of the stud; or as shown in fig. 18, the first combining portion 32B and the second combining portion 52B respectively form a combining manner of an inner screw hole and a stud; or as shown in fig. 19 and 20, in the first embodiment of the combination with a binding band, the first combination portion 32C forms a buckle hole with an elastic buckle portion 325 inside, and the second combination portion 52C forms a long strip-shaped sheet-shaped band with a proper length, and at least one side of the band is provided with a ratchet-shaped buckling portion 522 for buckling the buckle portion 325; or as shown in fig. 21, in the second embodiment of the combination with the binding band, the first combination portion 32D forms a fastening hole with a big top and a small bottom, and the second combination portion 52D is a slender rod-shaped band, and a plurality of convex cone-shaped engaging portions 522 capable of fastening the conical fastening hole are protruded on the slender rod at intervals; after the belt member is inserted into the fastening hole, a surgical tool C is used to drive the upper tightening member 30 to move toward the tightening member 50 for tightening and fixing the hole.
The device of the invention can really achieve the aim that the drill hole of any part of the skeleton can be suitable for covering knots, and can also be relatively suitable for fixing the skull, thereby achieving the purposes of being suitable for both drilling holes and fixing the skull, having simple and rapid operation, being tightly clamped and firm, and effectively achieving the practicability of improving the general use range and efficiency.
The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (13)
1. A bone drilling cover device at least comprises an upper packing part and a lower packing part, wherein the upper packing part is provided with a first base part and a first combining part arranged on the first base part; the lower forcing piece at least comprises a second base part and a second combining part which is arranged on the second base part and can be combined with the first combining part; the second base part is composed of at least one first arm and at least one second arm, the total length formed by the first arm and the second arm is larger than the diameter of the drilled hole, and the length of the first arm is controlled to be larger than that of the second arm to form a long-short configuration.
2. The bone reaming device of claim 1, wherein: the first combining part and the second combining part are screwed with each other by screw holes and studs.
3. The bone reaming device of claim 1, wherein: the first combining part is a sleeve ring, the sleeve ring is concavely provided with a concave part with a through hole at the bottom, a screw cap is arranged in the concave part, and the second combining part is a stud which can be screwed with the screw cap.
4. A bone reaming device according to claim 3, characterized in that: the first combining part is a collar, the inner surface of the concave part is concavely provided with a fastening groove and is matched with a screw cap to be placed in the concave part, the outer surface of the screw cap is convexly provided with a convex ring which can be clamped in the fastening groove for pivot connection, the second combining part is a screw bolt which can be screwed with the screw cap, when the screw cap and the upper forcing piece are pivoted to form the screw cap and the screw bolt to rotate, the upper forcing piece is not synchronously rotated, but can be driven by the screw cap to move up and down.
5. The bone reaming device of claim 1, wherein: the first combining part is a buckle hole, the second combining part is a slender belt piece, and the belt piece is provided with a clamping part for buckling and positioning the buckle hole.
6. A bone reaming device according to claim 3 or 4, characterized in that: the second arm length is greater than the collar radius.
7. The bone reaming device of claim 1, wherein: the second arm length is greater than the borehole radius.
8. The bone reaming device of claim 1, wherein: the first arm and the second arm are sheet bodies with proper width, are arranged in a long and short way by taking the center line of the second combining part as the center, and are connected in an integrated forming way.
9. The bone reaming device of claim 1, wherein: the first arm and the second arm are sheet bodies with proper width and are arranged in a long and short way by taking the center line of the second combining part as the center, and the first arm and the second arm are separating elements and form movable pivot group connection with the unfolding and folding functions.
10. The bone reaming device of claim 9, wherein: the first arm is formed by extending the second connecting part, the first arm is concavely provided with a concave part for the second arm to be sleeved and folded, and the second arm is provided with a sleeve part sleeved and connected with the second connecting part and is folded and unfolded by taking the second connecting part as a pivot.
11. A bone reaming device according to claim 3 or 4, characterized in that: the upper end of the screw cap is provided with a first positioning part for combining the surgical tool, and the inner part of the stud is provided with an inner threaded hole for combining the surgical tool.
12. The bone reaming device of claim 11, wherein: the first positioning part is annularly provided with a concave-convex shape on the periphery of the upper end of the screw cap or is provided with at least two concave hole structures on the end surface, and the internal thread hole of the stud penetrates through the stud and the second base part to form a penetrating drainage channel for placing the drainage tube into the drainage channel.
13. The bone reaming device of claim 2, wherein: the first base part is provided with a concave or convex first positioning part for combining the operation tool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811095763.3A CN110916751B (en) | 2018-09-19 | 2018-09-19 | Bone drilling cover device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811095763.3A CN110916751B (en) | 2018-09-19 | 2018-09-19 | Bone drilling cover device |
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| Publication Number | Publication Date |
|---|---|
| CN110916751A true CN110916751A (en) | 2020-03-27 |
| CN110916751B CN110916751B (en) | 2021-01-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811095763.3A Active CN110916751B (en) | 2018-09-19 | 2018-09-19 | Bone drilling cover device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116509556A (en) * | 2023-04-20 | 2023-08-01 | 北京艺升医疗科技有限公司 | Cranium drilling system |
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| TWI609670B (en) * | 2017-03-31 | 2018-01-01 | Cranial fixation device and surgical tool |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116509556A (en) * | 2023-04-20 | 2023-08-01 | 北京艺升医疗科技有限公司 | Cranium drilling system |
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| CN110916751B (en) | 2021-01-15 |
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