CN112220523B - Miniature bone drill of neurosurgery cranium - Google Patents
Miniature bone drill of neurosurgery cranium Download PDFInfo
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- CN112220523B CN112220523B CN202011260352.2A CN202011260352A CN112220523B CN 112220523 B CN112220523 B CN 112220523B CN 202011260352 A CN202011260352 A CN 202011260352A CN 112220523 B CN112220523 B CN 112220523B
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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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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/10—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges for stereotaxic surgery, e.g. frame-based stereotaxis
- A61B90/14—Fixators for body parts, e.g. skull clamps; Constructional details of fixators, e.g. pins
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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
- A61B2017/00367—Details of actuation of instruments, e.g. relations between pushing buttons, or the like, and activation of the tool, working tip, or the like
- A61B2017/00398—Details of actuation of instruments, e.g. relations between pushing buttons, or the like, and activation of the tool, working tip, or the like using powered actuators, e.g. stepper motors, solenoids
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Abstract
The invention discloses a cranial miniature bone drill for neurosurgery, which belongs to the technical field of medical instruments and comprises a handheld frame, wherein limit slide bars are transversely welded at four corners of the side wall of one side of the handheld frame, and one end of each limit slide bar, which is far away from the handheld frame, is provided with a bone drilling mechanism.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a cranial miniature bone drill for neurosurgery.
Background
The surgery is called as operation, commonly known as open surgery, and refers to a treatment process of entering human body or other biological tissues through surgical equipment or surgical instruments and operated by surgeons or other professionals to remove pathological changes, change structures or implant foreign objects by means of external force. Early surgery was limited to simple manual methods of cutting, incising, and suturing the body surface, such as abscess drainage, tumor excision, and trauma suturing. Surgery is a procedure that destroys the integrity of tissue (incision), or restores the integrity of the destroyed tissue (suture). With the development of surgery, the field of surgery is expanding and can be performed at any part of the human body. Neurosurgery is a clinical surgery department which treats diseases of the central nervous system (brain and spinal cord), the peripheral nervous system and the autonomic nervous system by taking operation as a main means.
When a patient does not have CT examination conditions or is in danger and has no time to carry out CT detection, when the intracranial hematoma is to be diagnosed, the patient needs to carry out drilling exploration with minutes and seconds, after the hematoma is discovered, the patient immediately opens the skull to carry out corresponding operation, when the cranial drilling exploration operation is carried out in neurosurgery, medical personnel are required to drill the skull of the patient through a drilling machine, most of the drilling and feeding of the existing equipment for drilling the skull of the patient need to drill holes through manual rotation or forced pressing, great labor and time are wasted, and the patient is influenced to be saved in time.
Disclosure of Invention
The invention aims to provide a cranial miniature bone drill for neurosurgery, which solves the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a little brill bone ware of neurosurgery cranium portion, includes handheld frame, the equal transverse welding in one side lateral wall four corners of handheld frame has spacing slide bar, spacing slide bar is far away from the one end of handheld frame and is provided with bores bone mechanism, bore bone mechanism includes the support sleeve, the brill bone motor of taking the drill bit is installed to the inner chamber of support sleeve, the outer wall of support sleeve is the cross range and installs four groups synchronous expansion bracket, four groups install the locating support between the one end of the support sleeve of keeping away from of synchronous expansion bracket, and the locating support is fixed with the one end of spacing slide bar, the horizontal longitudinal symmetry welding of opposite side lateral wall of handheld frame has two sets of supporting rods, and is two sets of the welding has the shoulder layer board between the one end of support rod far away from handheld frame, handheld frame includes the supporting shoe, the bottom welding of supporting shoe has the handle, control switch is installed to the lateral wall of handle, feed mechanism is installed to the lateral wall of handheld frame, feed mechanism includes the locating sleeve, the lateral wall that the locating sleeve runs through the supporting shoe, the inner chamber of locating sleeve transversely installs the promotion screw rod, and pass the both ends of locating sleeve respectively, the drive gear is cup jointed to the drive gear, the drive gear lateral wall, the drive gear is connected to the output shaft, the drive gear is connected to the push pedal of support sleeve, the one end connection motor, the support sleeve, and is connected the push pedal.
Preferably, a fixed jack matched with the positioning sleeve is arranged in the middle of the side wall of the supporting block, a wear-resistant bearing is installed at the joint of the fixed jack and the positioning sleeve, an inner thread matched with the pushing screw is arranged on the side wall of the inner cavity of the positioning sleeve, and the positioning sleeve can be driven by the transmission gear to rotate on the side wall of the positioning sleeve.
Preferably, the outer walls of the handle and the shoulder supporting plate are both bonded with rubber protective sleeves, the control end of the control switch is connected with the control ends of the bone drilling motor and the feeding motor through wires respectively, and the side wall of the supporting block is provided with a limiting clamping groove matched with the feeding motor.
Preferably, the connection push plate is a magnetic circular push plate, and the connection part of the connection push plate and the pushing screw is connected through a bearing.
Preferably, positioning slot has evenly been seted up to the inner chamber of support sleeve, the even welding in support sleeve's outer wall middle part has four groups of stable sleeves with spacing slide bar matched with, the even welding of outer wall that the support sleeve is close to the open end has four groups of U type otic placodes one with synchronous expansion bracket matched with, and crisscross setting each other between four groups of U type otic placodes one and four groups of stable sleeves.
Preferably, clearance fit is adopted between the stabilizing sleeve and the limiting slide rod, and the stabilizing sleeve can slide on the outer wall of the limiting slide rod along with the movement of the supporting sleeve.
Preferably, the synchronous telescopic frame comprises a first connecting pull plate matched with a first U-shaped lug plate, the bottom of the first connecting pull plate is movably connected with the inner cavity of the first U-shaped lug plate through a pin, the top of the first connecting pull plate is movably connected with a second connecting pull plate through a pin, the bottom of the second connecting pull plate is movably connected with the positioning support through a pin, and the four connecting pull plate and the two connecting pull plate are mutually staggered with four groups of limiting slide bars.
Preferably, the two ends of the second connecting pull plate are provided with U-shaped clamping grooves, the arc-shaped push plate can slide in the inner cavity of the rectangular notch, and the limiting shaft rod and the arc-shaped sliding groove are in clearance fit.
Preferably, the locating support includes and is connected the cross support that arm-tie two phases are connected, location drilling has been seted up at the lateral wall middle part of cross support, the lateral wall of cross support is that the cross bonds and has four group's flexible briquetting, and four group's flexible briquetting equipartitions around the location drilling, the lateral wall of cross support is that the cross welding has four group's backup pad, and four group's backup pad and cross support crisscross setting each other, the lateral wall top of backup pad transversely welds has fixed sleeve, and the one end fixed connection of fixed sleeve and spacing slide bar.
Preferably, the control switch is a three-phase button control switch, and the bone drilling motor and the feeding motor are both miniature direct current electric motors.
Compared with the prior art, the invention has the beneficial effects that:
1) According to the feeding mode, the rotation of the feeding motor is controlled through the control switch, and the bone drilling motor can be pushed to move forwards at a constant speed by the connecting push plate through a series of mechanical transmissions, so that the complexity of rotating in hands or pressing down with force of medical staff is avoided, and the drilling exploration operation of the medical staff is facilitated;
2) The synchronous telescopic frame which can be unfolded outwards along with the movement of the bone drilling motor is arranged, so that in the drilling process, the columnar push block can prop skin and flesh around the drilling position to the periphery, medical staff can complete the drilling operation by a single person, and the influence on the implementation of the drilling exploration operation due to the complex property of needing multiple persons and the narrow space of the head of a patient in which the multiple persons stand is avoided;
3) According to the invention, the shoulder supporting plate capable of abutting against the shoulder is arranged behind the handheld frame, so that the shoulder supporting plate can abut against the shoulder of medical staff, the medical staff can conveniently clamp the product by one arm, and the stability in the drilling process is ensured;
of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a bone drilling mechanism according to the present invention;
FIG. 3 is an isometric elevation view of the hand held frame of the present invention;
FIG. 4 is a schematic view of the feeding mechanism of the present invention;
FIG. 5 is a rear perspective view of the hand held frame of the present invention;
FIG. 6 is an enlarged view of the S portion of the present invention;
FIG. 7 is a schematic view of a support sleeve according to the present invention;
FIG. 8 is a schematic view of a synchronous telescopic frame according to the present invention;
FIG. 9 is a schematic view of a positioning bracket according to the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1-handheld frame, 11-supporting block, 12-handle, 13-control switch, 2-limit slide bar, 3-bone drilling mechanism, 31-supporting sleeve, 311-positioning clamping groove, 312-stabilizing sleeve, 313-U-shaped ear plate I, 32-bone drilling motor, 33-synchronous telescopic frame, 331-connecting pull plate I, 332-connecting pull plate II, 333-rectangular notch, 334-U-shaped ear plate II, 335-arc push plate, 336-arc sliding groove, 337-limit shaft lever, 338-cylindrical push block, 34-positioning bracket, 341-cross bracket, 342-positioning drill hole, 343-flexible press block, 344-supporting plate, 345-fixing sleeve, 4-supporting connecting rod, 5-shoulder supporting plate, 6-feeding mechanism, 61-positioning sleeve, 62-pushing screw, 63-transmission gear, 64-feeding motor, 65-driving gear and 66-connecting push plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, the present invention provides a technical solution: a miniature cranial drill for neurosurgery comprises a handheld frame 1, wherein limiting slide bars 2 are transversely welded at four corners of the side wall of one side of the handheld frame 1, one ends of the limiting slide bars 2 far away from the handheld frame 1 are provided with bone drilling mechanisms 3, each bone drilling mechanism 3 comprises a supporting sleeve 31, a bone drilling motor 32 with a drill bit is mounted in the inner cavity of the supporting sleeve 31, four groups of synchronous telescopic frames 33 are mounted on the outer wall of the supporting sleeve 31 in a cross arrangement manner, a positioning support 34 is mounted between the ends of the four groups of synchronous telescopic frames 33 far away from the supporting sleeve 31, and the positioning support 34 is fixed with one end of each limiting slide bar 2, so that the bone drilling motors 32 can be conveniently positioned through the positioning supports 34 to accurately drill holes on the cranial part of a patient;
two groups of supporting connecting rods 4 are transversely and symmetrically welded on the side wall of the other side of the handheld frame 1 from top to bottom, a shoulder supporting plate 5 is welded between one ends, far away from the handheld frame 1, of the two groups of supporting connecting rods 4, the shoulder supporting plate 5 can abut against shoulders of medical staff, the product can be conveniently clamped by the medical staff through one arm, and the stability in the drilling process is ensured;
the feeding mechanism 6 is installed on the side wall of the handheld frame 1, the feeding mechanism 6 comprises a positioning sleeve 61, the positioning sleeve 61 penetrates through the side wall of the supporting block 11, a pushing screw 62 is transversely installed in the inner cavity of the positioning sleeve 61, two ends of the pushing screw 62 penetrate through two ends of the positioning sleeve 61 respectively, a transmission gear 63 is sleeved on the outer wall of one end of the positioning sleeve 61, a fixed insertion hole matched with the positioning sleeve 61 is formed in the middle of the side wall of the supporting block 11, a wear-resistant bearing is installed at the joint of the fixed insertion hole and the positioning sleeve 61, and the rotating wear of the joint of the positioning sleeve 61 and the fixed insertion hole is reduced;
the side wall of the inner cavity of the positioning sleeve 61 is provided with an internal thread matched with the pushing screw 62, the positioning sleeve 61 can be driven by the transmission gear 63 to rotate on the side wall of the positioning sleeve 61, the side wall of the supporting block 11 is inlaid with a feeding motor 64, rubber protective sleeves are bonded on the outer walls of the handle 12 and the shoulder supporting plate 5, and the comfort of holding and abutting against the shoulder is improved;
the control end of the control switch 13 is respectively connected with the control ends of the bone drilling motor 32 and the feeding motor 64 through leads, the side wall of the supporting block 11 is provided with a limiting clamping groove matched with the feeding motor 64, the feeding motor 64 is conveniently installed on the side wall of the supporting block 11, the output shaft end of the feeding motor 64 is sleeved with a driving gear 65, the driving gear 65 is meshed with a transmission gear 63, one end of the pushing screw 62 is provided with a connecting push plate 66, the connecting push plate 66 is fixedly adsorbed with the side wall of the supporting sleeve 31, the connecting push plate 66 is a magnetic round push plate, and the connecting part of the connecting push plate 66 and the pushing screw 62 is connected through a bearing, so that the rotational abrasion between the connecting push plate 66 and the pushing screw 62 is reduced;
the control switch 13 is a three-phase button control switch, the bone drilling motor 32 and the feeding motor 64 are both miniature direct current electric motors, the rotation of the feeding motor 64 and the bone drilling motor 32 is controlled by the control switch 13, the rotation of the feeding motor 64 drives the driving gear 65 to rotate, the rotation of the driving gear 65 drives the transmission gear 63 to rotate, the rotation of the transmission gear 63 drives the positioning sleeve 61 to rotate, the pushing screw 62 can slide in the inner cavity of the positioning sleeve 61 through the rotation of the positioning sleeve 61 and the thread action between the inner cavity of the positioning sleeve and the pushing screw 62, the sliding of the connecting push plate 66 is pushed through the sliding of the pushing screw 62, the bone drilling motor 32 is pushed forward to move at a constant speed through the sliding of the connecting push plate 66, the complexity of rotation in the hand or pressing down with force of medical staff is avoided, and the medical staff can conveniently carry out a drilling exploration operation;
referring to fig. 7, the present invention provides a technical solution: positioning clamping grooves 311 are uniformly formed in the inner cavity of the supporting sleeve 31, so that the bone drilling motor 32 can be conveniently fixed in the inner cavity of the supporting sleeve 31, four groups of stabilizing sleeves 312 matched with the limiting slide bars 2 are uniformly welded in the middle of the outer wall of the supporting sleeve 31, the stabilizing sleeves 312 are in clearance fit with the limiting slide bars 2, the stabilizing sleeves 312 can slide on the outer wall of the limiting slide bars 2 along with the movement of the supporting sleeve 31, the sliding stability of the supporting sleeve 31 is improved, four groups of U-shaped ear plates 313 matched with the synchronous telescopic frame 33 are uniformly welded on the outer wall, close to the opening end, of the supporting sleeve 31, the four groups of U-shaped ear plates 313 and the four groups of stabilizing sleeves 312 are arranged in a staggered mode, and the supporting sleeve 31 is conveniently connected with the synchronous telescopic frame 33 through pins;
referring to fig. 8, the present invention provides a technical solution: the synchronous telescopic frame 33 includes a first connecting pulling plate 331 which is matched with a first U-shaped ear plate 313, the bottom end of the first connecting pull plate 331 is movably connected with the inner cavity of the first U-shaped ear plate 313 through a pin, the top end of the first connecting pull plate 331 is movably connected with a second connecting pull plate 332 through a pin, the bottom end of the connecting pulling plate II 332 is movably connected with the positioning bracket 34 through a pin, the four groups of connecting pulling plates I331 and the connecting pulling plates II 332 are arranged in a mutually staggered way with the four groups of limiting slide bars 2, the middle of the side wall of the connecting pulling plate II 332 is vertically provided with a rectangular notch 333, the middle of the bottom of the connecting pulling plate I331 is welded with a U-shaped lug plate II 334, the inner cavity of the U-shaped lug plate II 334 is movably connected with an arc push plate 335 through a pin, the top end of the arc-shaped push plate 335 passes through the inner cavity of the rectangular notch 333, the side wall of the arc-shaped push plate 335 is provided with an arc-shaped chute 336, the inner cavity of the rectangular notch 333 is provided with a limit shaft lever 337, the limiting shaft lever 337 penetrates through the inner cavity of the arc chute 336, U-shaped clamping grooves are arranged at the two ends of the connecting pulling plate 332, the arc push plate 335 can slide in the inner cavity of the rectangular notch 333, the limiting shaft lever 337 is in clearance fit with the arc chute 336, the top end of the arc push plate 335 is movably connected with a cylindrical push block 338 through a pin, when the supporting sleeve 31 is pushed by the connecting push plate 66, the first connecting pull plate 331 rotates downward about the pin connected to the second connecting pull plate 332, the first connecting pulling plate 331 pushes the arc-shaped pushing plate 335 to slide outwards along the inner cavity of the arc-shaped sliding groove 336 under the limiting action of the limiting shaft 337, thereby the columnar push block 338 can prop the skin and flesh around the drilling position to the periphery, the medical staff can complete the drilling operation by a single person, the complication caused by the need of the cooperation of a plurality of persons is avoided, and the influence of the multiple persons standing in the narrow space of the head of the patient on the implementation of the drilling exploration operation;
referring to fig. 9, the present invention provides a technical solution: the positioning support 34 comprises a cross support 341 connected with the second connecting pull plate 332, a positioning drill hole 342 is formed in the middle of the side wall of the cross support 341, positioning drill holes of the drill bit of the bone drilling motor 32 are convenient to drill, four groups of flexible press blocks 343 are bonded on the side wall of the cross support 341 in a cross manner, the four groups of flexible press blocks 343 are uniformly distributed around the positioning drill hole 342, the flexible press blocks 343 can reduce the compression of the 341 on the skull of the patient, four groups of support plates 344 are welded on the side wall of the cross support 341 in a cross manner, the four groups of support plates 344 and the cross support 341 are arranged in a staggered manner, a fixing sleeve 345 is welded at the top end of the side wall of each support plate 344 in a transverse manner, and the fixing sleeve 345 is fixedly connected with one end of each limit slide rod 2, so that the four groups of limit slide rods 2 can be stably fixed between the cross support 341 and the support block 11.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (5)
1. The utility model provides a miniature bone drill of neurosurgery cranium, includes handheld frame (1), its characterized in that: the bone drilling machine is characterized in that a limiting slide bar (2) is transversely welded at four corners of a side wall of the handheld frame (1), one end, away from the handheld frame (1), of the limiting slide bar (2) is provided with a bone drilling mechanism (3), the bone drilling mechanism (3) comprises a supporting sleeve (31), an inner cavity of the supporting sleeve (31) is provided with a bone drilling motor (32) with a drill bit, the outer wall of the supporting sleeve (31) is in a cross arrangement and provided with four groups of synchronous telescopic frames (33), four groups of the synchronous telescopic frames (33) are provided with a positioning support (34) between the ends, away from the supporting sleeve (31), of the positioning support (34) is fixed with one end of the limiting slide bar (2), the side wall of the other side of the handheld frame (1) is transversely and symmetrically welded with two groups of supporting connecting rods (4), two groups of the supporting connecting rods (4) are welded between the ends, away from the handheld frame (1), of the supporting rods (4) are provided with shoulder supporting plates (5), the handheld frame (1) comprises supporting blocks (11), the bottom of the supporting blocks (11) is welded with handles (12), the side walls of the supporting blocks (12) are provided with control switches (13) on the side walls, the side walls of the handheld frame (1) are provided with feeding mechanisms (6), the feeding mechanisms (61) which penetrate through the positioning sleeve (61), the inner cavity of the positioning sleeve (61) is transversely provided with a pushing screw rod (62), two ends of the pushing screw rod (62) penetrate through two ends of the positioning sleeve (61) respectively, the outer wall of one end of the positioning sleeve (61) is sleeved with a transmission gear (63), the side wall of the supporting block (11) is inlaid with a feeding motor (64), the output shaft end of the feeding motor (64) is sleeved with a driving gear (65), the driving gear (65) and the transmission gear (63) are meshed with each other, one end of the pushing screw rod (62) is provided with a connecting push plate (66), and the connecting push plate (66) and the side wall of the supporting sleeve (31) are fixedly adsorbed;
a fixed jack matched with the positioning sleeve (61) is formed in the middle of the side wall of the supporting block (11), a wear-resistant bearing is installed at the joint of the fixed jack and the positioning sleeve (61), an internal thread matched with the pushing screw rod (62) is formed in the side wall of the inner cavity of the positioning sleeve (61), and the positioning sleeve (61) can be driven by the transmission gear (63) to rotate on the side wall of the supporting block (11); positioning clamping grooves (311) are uniformly formed in the inner cavity of the supporting sleeve (31), four groups of stabilizing sleeves (312) matched with the limiting slide rods (2) are uniformly welded in the middle of the outer wall of the supporting sleeve (31), four groups of U-shaped ear plates (313) matched with the synchronous telescopic frame (33) are uniformly welded on the outer wall, close to the opening end, of the supporting sleeve (31), and the four groups of U-shaped ear plates (313) and the four groups of stabilizing sleeves (312) are arranged in a staggered mode;
the stabilizing sleeve (312) is in clearance fit with the limiting slide rod (2), and the stabilizing sleeve (312) can slide on the outer wall of the limiting slide rod (2) along with the movement of the supporting sleeve (31);
the synchronous telescopic frame (33) comprises a first connecting pull plate (331) matched with a first U-shaped ear plate (313), the bottom end of the first connecting pull plate (331) is movably connected with an inner cavity of the first U-shaped ear plate (313) through a pin, the top end of the first connecting pull plate (331) is movably connected with a second connecting pull plate (332) through a pin, the bottom end of the second connecting pull plate (332) is movably connected with a positioning support (34) through a pin, four groups of the first connecting pull plate (331), the second connecting pull plate (332) and four groups of limiting slide bars (2) are arranged in a staggered mode, a rectangular notch (333) is vertically formed in the middle of the side wall of the second connecting pull plate (332), a second U-shaped ear plate (334) is welded in the middle of the bottom of the first connecting pull plate (331), an arc push plate (335) is movably connected with the inner cavity of the second U-shaped ear plate (334) through a pin, the top end of the arc push plate (335) penetrates through the inner cavity of the rectangular notch (333), an arc push plate (335) is provided with an arc push plate (337), an arc chute (337) which penetrates through a cylindrical pin (337), and a limiting slide groove (337) is provided with an arc push plate (338);
the two ends of the second connecting pull plate (332) are provided with U-shaped clamping grooves, the arc-shaped push plate (335) can slide in the inner cavity of the rectangular notch (333), and the limiting shaft lever (337) is in clearance fit with the arc-shaped sliding groove (336).
2. A neurosurgical cranial micro-burr according to claim 1, wherein: the outer walls of the handle (12) and the shoulder supporting plate (5) are respectively bonded with a rubber protective sleeve, the control end of the control switch (13) is respectively connected with the control ends of the bone drilling motor (32) and the feeding motor (64) through leads, and the side wall of the supporting block (11) is provided with a limiting clamping groove matched with the feeding motor (64).
3. A neurosurgical cranial micro-burr according to claim 1, wherein: the connecting push plate (66) is a magnetic circular push plate, and the connecting position of the connecting push plate (66) and the pushing screw rod (62) is connected through a bearing.
4. A neurosurgical cranial micro-burr according to claim 1, wherein: the positioning support (34) comprises a cross support (341) connected with a second connecting pull plate (332), positioning drill holes (342) are formed in the middle of the side wall of the cross support (341), four groups of flexible press blocks (343) are bonded on the side wall of the cross support (341) in a cross mode, the four groups of flexible press blocks (343) are uniformly distributed around the positioning drill holes (342), four groups of support plates (344) are welded on the side wall of the cross support (341) in a cross mode, the four groups of support plates (344) and the cross support (341) are arranged in a staggered mode, a fixing sleeve (345) is welded on the top end of the side wall of each support plate (344) in a transverse mode, and the fixing sleeve (345) is fixedly connected with one end of a limiting slide rod (2).
5. The neurosurgical cranial micro-burr according to claim 1, wherein: the control switch (13) is a three-phase button control switch, and the bone drilling motor (32) and the feeding motor (64) are both miniature direct current electric motors.
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| CN202011260352.2A CN112220523B (en) | 2020-11-12 | 2020-11-12 | Miniature bone drill of neurosurgery cranium |
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| CN202011260352.2A CN112220523B (en) | 2020-11-12 | 2020-11-12 | Miniature bone drill of neurosurgery cranium |
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| CN112220523B true CN112220523B (en) | 2023-01-24 |
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