CN104825205B - A kind of skull drilling device of the neurosurgery of improvement - Google Patents

A kind of skull drilling device of the neurosurgery of improvement Download PDF

Info

Publication number
CN104825205B
CN104825205B CN201510244462.2A CN201510244462A CN104825205B CN 104825205 B CN104825205 B CN 104825205B CN 201510244462 A CN201510244462 A CN 201510244462A CN 104825205 B CN104825205 B CN 104825205B
Authority
CN
China
Prior art keywords
drilling device
screw rod
neurosurgery
housing
skull drilling
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.)
Active
Application number
CN201510244462.2A
Other languages
Chinese (zh)
Other versions
CN104825205A (en
Inventor
张秀华
孙国涛
张凯
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN201510244462.2A priority Critical patent/CN104825205B/en
Publication of CN104825205A publication Critical patent/CN104825205A/en
Application granted granted Critical
Publication of CN104825205B publication Critical patent/CN104825205B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/16Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
    • A61B17/1695Trepans or craniotomes, i.e. specially adapted for drilling thin bones such as the skull
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/16Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
    • A61B17/1613Component parts
    • A61B17/1622Drill handpieces
    • A61B17/1624Drive mechanisms therefor
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/16Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
    • A61B17/1613Component parts
    • A61B17/1626Control means; Display units
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/16Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
    • A61B17/1655Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans for tapping

Abstract

The invention provides the skull drilling device of the neurosurgery of a kind of improvement, belong to technical field of medical instruments.It solve the technical problem such as big, the inconvenient operation of skull drilling device wound of existing neurosurgery.A kind of skull drilling device of the neurosurgery of improvement, including housing, handle and the output shaft being plugged on housing, the front end of output shaft is fixedly installed a drill chuck, a drill bit it is provided with on drill chuck, output shaft is provided with a gear, an one-way clutch it is provided with between gear and output shaft, the tooth fan engaged with gear it is additionally provided with in housing, it is fixedly installed a screw rod on tooth fan, screw rod be arranged with a nut, be provided with a guide frame that screw rod can be driven to rotate when nut moves along screw axis direction between nut and handle.The present invention has the advantages such as wound is little, easy to operate.

Description

A kind of skull drilling device of the neurosurgery of improvement
Technical field
The invention belongs to technical field of medical instruments, relate to the neurosurgery hands of a kind of improvement The skull drilling device of art.
Background technology
In neurosurgery clinical position, for Clinics and Practices, often use brill cranium Device, is used for boring cranium operation, it is adaptable to ventriculography, cerebral hemorrhage, chronic subdural hematoma Treatment etc. disease.
Patent [CN 1729941 A] disclose a kind of for neurosurgery clinic hands The mirco-traumatic skull drill of art, it includes drill body, crank, axle, drill chuck, drill bit and a pair Intermeshing bevel gear, drill body are arch, a pair bevel gear, are respectively provided at brill On internal orthogonal axle, bevel gear by rocking bar and the nut being located on rocking bar and Pressure mother be connected as a single entity with crank, and drill chuck is located at the outside of drill body and is connected as a single entity with axle, at drill body Lower section be provided with handle, handle be provided with finger recessed, drill bit is provided with scale, the top of drill bit Portion's apex point is flat pointed, and present configuration is simple, easy to use, quick, and wound is little, Patient's misery is few, is worth in neurosurgery clinical operation, especially at acute great occipital foramen brain The rescue of hernia patient and be there is a need to execution external ventricular drainage patient in promote the use of, But, this skull drilling device needs two handss of doctor to operate, it is crucial that: this brill cranium The power resources of device are the bevel gears by rotating, say, that patient is being entered by doctor When row bores cranium operation, need rotation to be positioned at the crank above drill body, rotate crank to drill bit Drilling direction cause large effect, make the direction of brill cranium it may happen that skew, even if Doctor constantly adjusts, and also results in and bores the wound of cranium relatively greatly, and position is forbidden, right The injury of patient is bigger, it is impossible to meet the demand boring cranium operation.
Summary of the invention
It is an object of the invention to the problems referred to above existed for existing technology, it is provided that a kind of The brill of the neurosurgery of the improvement that one hand is the most operable, simple in construction, wound are little Cranium device.
The purpose of the present invention can be realized by following technical proposal: the nerve of a kind of improvement The skull drilling device of surgical operation, it is characterised in that include housing, handle and be plugged in shell Output shaft on body, the front end of described output shaft is fixedly installed a drill chuck, described drill chuck On be provided with a drill bit, described output shaft is provided with a gear, described gear and output shaft Between be provided with an one-way clutch, be additionally provided with the tooth engaged with described gear in described housing Fan, described tooth fan on be fixedly installed a screw rod, described screw rod be arranged with a nut, One it is provided with when nut moves along screw axis direction between described nut and described handle The guide frame that screw rod rotates can be driven.
The operation principle of the present invention is: when patient carries out boring cranium operation, hold for one Stop handle, forefinger and middle finger presses nut, by guide frame, the linear fortune of this nut Dynamic, it is converted into the rotary motion of screw rod, power is transferred to tooth fan, gear, output shaft And drill bit, the effect of the one-way clutch owing to being arranged between gear and output shaft, instead Multiple travelling nut back and forth, makes output shaft rotate around same direction, thus carries out boring cranium hands Art, in this programme, the power resources of skull drilling device and the hands of operator, it is not necessary to connect outside Power source, it is simple to operation, low cost, and this simple in construction, easily enters polluter Row controls, and on the other hand, boring direction is identical with the direction of the active force of operator, no During existence boring, active force causes bore position to offset, drill bit swing guide causes injury mouth relatively The problem such as big;Utilize the sensitiveest position forefinger of people and middle finger as this skull drilling device Power resources, not only make this skull drilling device easily controllable, and can with the operation of upper frequency, The drilling efficiency making this skull drilling device is greatly improved, and alleviates the misery of patient, shortens hands The time of art;In this programme, use tooth fan and the drive mechanism of gear engagement, on the one hand, Higher gear ratio can improve the rotary speed of drill bit, and on the other hand, tooth fan can contract The overall volume of small capital skull drilling device.
In the skull drilling device of the neurosurgery of above-mentioned improvement, described guide frame The pilot hole being arranged on handle including several and be plugged in described pilot hole and with institute Stating the guide rod that screw rod is parallel, one end of described guide rod is fixed with described nut, described guide rod The other end be installed with a baffle plate, between the diapire of described baffle plate and described pilot hole arrange There is back-moving spring.Forefinger and middle finger pressure nut to behind the bottom of handle, returning of back-moving spring Multiple power is ordered about nut and is resetted, and makes operation simpler, and wherein, nut is determined by guide rod Position effect, will not rotate, can only move axially along pilot hole.
In the skull drilling device of the neurosurgery of above-mentioned improvement, solid on described housing Surely being provided with a gag lever post, described tooth fan offers an escape groove, described gag lever post is inserted It is located in described escape groove.Tooth is fanned under the effect of gag lever post and escape groove, is in reciprocal The state swung.
In the skull drilling device of the neurosurgery of above-mentioned improvement, described housing exterior walls It is further fixedly arranged on leader.Handle and handle are the holding positions of two handss of operator, Originally handle holes in skull drilling device, it is possible to play the effect of auxiliary positioning, is also convenient for operation Person is slowing down fatigue.
In the skull drilling device of the neurosurgery of above-mentioned improvement, the two of described screw rod End is plugged in described handle and housing respectively, and the most logical between screw rod and handle and housing Cross bearing to be connected.
In the skull drilling device of the neurosurgery of above-mentioned improvement, described escape groove is Radian is the arc-shaped of 0.5 π.Tooth fan rotating 90 ° is a cycle.
In the skull drilling device of the neurosurgery of above-mentioned improvement, the spiral shell of described screw rod Away from between 40~60mm.The pitch of the screw rod in this skull drilling device is bigger, it is only necessary to less Strength screw rod can be made to rotate.
In the skull drilling device of the neurosurgery of above-mentioned improvement, described tooth fan and tooth Gear ratio between wheel is 10~15.High gear ratio can improve the rate of penetration of drill bit, Reduce the reciprocating frequence of nut, improve and operate light degree.
In the skull drilling device of the neurosurgery of above-mentioned improvement, described tooth is fanned as moulding Material material is made.The tooth fan that plastic material is made has the feature of light weight, and inertia force is little, Make impulsive force during tooth fan reciprocally swinging little, and the overall weight of whole skull drilling device is the most relatively Little, use light, borehole accuracy is high, and wound is little.
Compared with prior art, the invention have the advantages that
1, the effect of the one-way clutch owing to being arranged between gear and output shaft, repeatedly Travelling nut back and forth, makes output shaft rotate around same direction, thus carries out boring cranium operation.
2, in this programme, the power resources of skull drilling device and the hands of operator, it is not necessary to outside connection Portion's power source, it is simple to operation, low cost, and this simple in construction, easily to polluter It is controlled.
3, the boring direction of this skull drilling device is identical with the direction of the active force of operator, does not deposits When boring active force cause bore position to offset, drill bit swing guide mouth of causing injury bigger Etc. problem.
4, this skull drilling device utilizes the sensitiveest position forefinger of people and middle finger as this brill The power resources of cranium device, not only make this skull drilling device easily controllable, and can be with upper frequency Operation, make the drilling efficiency of this skull drilling device be greatly improved, alleviate patient misery, Shorten the time of operation.
5, in this programme, tooth fan and the drive mechanism of gear engagement are used, on the one hand, relatively High gear ratio can improve the rotary speed of drill bit, and on the other hand, tooth fan can reduce The overall volume of this skull drilling device.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of this skull drilling device.
Fig. 2 is the sectional view in Fig. 1 on A direction.
Fig. 3 is the structural representation of screw rod in this skull drilling device.
In figure, 1, housing;2, handle;3, output shaft;4, drill chuck;5, drill bit; 61, gear;62, tooth fan;63, one-way clutch;64, screw rod;65, nut;7、 Guide frame;71, pilot hole;72, guide rod;73, baffle plate;74, back-moving spring; 81, gag lever post;82, escape groove;9, handle.
Detailed description of the invention
The following is the specific embodiment of the present invention and combine accompanying drawing, the technical side to the present invention Case is further described, but the present invention is not limited to these embodiments.
As depicted in figs. 1 and 2, the skull drilling device of the neurosurgery of this improvement includes Housing 1, handle 2 and the output shaft 3 being plugged on housing 1, the front end of output shaft 3 is solid Surely being provided with a drill chuck 4, drill chuck 4 is provided with a drill bit 5, output shaft 3 is provided with one Gear 61, is provided with an one-way clutch 63, housing 1 between gear 61 and output shaft 3 Inside it is additionally provided with the tooth fan 62 engaged with gear 61, tooth fan 62 is fixedly installed a screw rod 64, screw rod 64 be arranged with a nut 65, be provided with one between nut 65 and handle 2 The guiding that screw rod 64 can be driven to rotate when nut 65 moves along screw rod 64 axis direction Structure 7.
As in figure 2 it is shown, guide frame 7 includes two pilot holes being arranged on handle 2 71 be plugged in pilot hole 71 in and the guide rod 72 parallel with screw rod 64, guide rod 72 One end is fixed with described nut 65, and the other end of guide rod 72 is installed with a baffle plate 73, gear Back-moving spring 74, forefinger and middle finger pressure it is provided with between the diapire of plate 73 and pilot hole 71 Behind the bottom of nut 65 to handle 2, the restoring force of back-moving spring 74 orders about nut 65 Reset, make operation simpler, wherein, nut 65 by the positioning action of guide rod 72, Will not rotate, can only move axially along pilot hole 71, housing 1 is fixedly installed One gag lever post 81, tooth fan 62 offers an escape groove 82, and gag lever post 81 is plugged in be kept away Allowing in groove 82, tooth fan 62, under the effect of gag lever post 81 and escape groove 82, is in past The state that physical pendulum is dynamic.
As shown in Figures 2 and 3, housing 1 outer wall is further fixedly arranged on leader 9, Hands 9 and handle 2 are the holding positions of two handss of operator, and handle 9 is holed in skull drilling device Originally, it is possible to play the effect of auxiliary positioning, it is also convenient for operator and is slowing down fatigue, spiral shell The two ends of bar 64 are plugged in handle 2 and housing 1 respectively, and screw rod 64 and handle 2 And be all connected by bearing between housing 1, escape groove 82 is circular arc that radian is 0.5 π Shape, it is a cycle that tooth fans 62 rotating 90 °, and the pitch of screw rod 64 is 40~60mm Between.The pitch of the screw rod 64 in this skull drilling device is bigger, it is only necessary to less strength Making screw rod 64 rotate, the gear ratio between tooth fan 62 and gear 61 is 10~15, high Gear ratio can improve the rate of penetration of drill bit 5, reduces the reciprocating frequence of nut 65, carries The light degree of high operation.
Tooth fan 62 is made for plastic material, and the tooth fan 62 that plastic material is made has light weight Feature, inertia force is little, and impulsive force when making tooth fan 62 reciprocally swinging is little, and whole The overall weight of skull drilling device is the least, uses light, and borehole accuracy is high, and wound is little.
The operation principle of the present invention is: when patient carries out boring cranium operation, hold for one Stop handle 2, forefinger and middle finger presses nut 65, by guide frame 7, and this nut 65 Linear movement, be converted into the rotary motion of screw rod 64, power is transferred to tooth fan 62, Gear 61, output shaft 3 and drill bit 5, owing to being arranged between gear 61 and output shaft 3 The effect of one-way clutch 63, travelling nut 65 the most back and forth, make output shaft 3 Rotate around same direction, thus carry out boring cranium operation, in this programme, the power of skull drilling device Source and the hands of operator, it is not necessary to connect external power supply, it is simple to operation, low cost, And this simple in construction, easily polluter is controlled, on the other hand, boring direction Identical with the direction of the active force of operator, when there is not boring, active force causes boring position Put offset, drill bit 5 swing guide causes injury the problems such as mouth is bigger;Utilize people the sensitiveest Position forefinger and middle finger, as the power resources of this skull drilling device, not only make this skull drilling device Easily controllable, and can be with the operation of upper frequency, the drilling efficiency making this skull drilling device is big Big raising, alleviates the misery of patient, shortens the time of operation;In this programme, adopt With tooth fan 62 and the drive mechanism of gear 61 engagement, on the one hand, higher gear ratio can To improve the rotary speed of drill bit 5, on the other hand, tooth fan 62 can reduce this skull drilling device Overall volume.
Specific embodiment described herein is only to present invention spirit theory for example Bright.Those skilled in the art can be to described specific embodiment Make various amendment or supplement or use similar mode to substitute, but without departing from The spirit of the present invention or surmount scope defined in appended claims.

Claims (6)

1. the skull drilling device of the neurosurgery improved, it is characterised in that include Housing (1), handle (2) and the output shaft (3) being plugged on housing (1), described The front end of output shaft (3) is fixedly installed a drill chuck (4), and described drill chuck sets on (4) Being equipped with a drill bit (5), described output shaft (3) is provided with a gear (61), described tooth It is provided with an one-way clutch (63), described housing between wheel (61) and output shaft (3) (1) tooth fan (62) engaged with described gear (61), described tooth fan (62) it are additionally provided with in On be fixedly installed a screw rod (64), described screw rod (64) be arranged with a nut (65), One it is provided with when nut (65) is along spiral shell between described nut (65) and described handle (2) Bar (64) axis direction can drive the guide frame (7) that screw rod (64) rotates when moving; Described guide frame (7) includes several pilot holes (71) being arranged on handle (2) The guide rod (72) interior and parallel with described screw rod (64) with being plugged in described pilot hole (71), One end of described guide rod (72) is fixed with described nut (65), described guide rod (72) The other end be installed with a baffle plate (73), described baffle plate (73) and described pilot hole (71) Diapire between be provided with back-moving spring (74);Described tooth fan (62) and gear (61) Between gear ratio be 10~15.
The skull drilling device of the neurosurgery of improvement the most according to claim 1, It is characterized in that, described housing (1) is fixedly installed a gag lever post (81), described Offering an escape groove (82) on tooth fan (62), described gag lever post (81) is plugged in institute State in escape groove (82).
The skull drilling device of the neurosurgery of improvement the most according to claim 2, It is characterized in that, described housing (1) outer wall is further fixedly arranged on leader (9).
The skull drilling device of the neurosurgery of improvement the most according to claim 3, It is characterized in that, the two ends of described screw rod (64) be plugged in respectively described handle (2) and In housing (1), and all pass through between screw rod (64) and handle (2) and housing (1) Bearing is connected.
The skull drilling device of the neurosurgery of improvement the most according to claim 4, It is characterized in that, described escape groove (82) be radian be the arc-shaped of 0.5 π.
The skull drilling device of the neurosurgery of improvement the most according to claim 5, It is characterized in that, the pitch of described screw rod (64) is between 40~60mm.
CN201510244462.2A 2013-11-28 2013-11-28 A kind of skull drilling device of the neurosurgery of improvement Active CN104825205B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510244462.2A CN104825205B (en) 2013-11-28 2013-11-28 A kind of skull drilling device of the neurosurgery of improvement

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201510244462.2A CN104825205B (en) 2013-11-28 2013-11-28 A kind of skull drilling device of the neurosurgery of improvement
CN201310617622.4A CN103750879B (en) 2013-11-28 2013-11-28 A kind of brill cranium device of neurosurgery

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CN201310617622.4A Division CN103750879B (en) 2013-11-28 2013-11-28 A kind of brill cranium device of neurosurgery

Publications (2)

Publication Number Publication Date
CN104825205A CN104825205A (en) 2015-08-12
CN104825205B true CN104825205B (en) 2017-01-04

Family

ID=50518323

Family Applications (2)

Application Number Title Priority Date Filing Date
CN201510244462.2A Active CN104825205B (en) 2013-11-28 2013-11-28 A kind of skull drilling device of the neurosurgery of improvement
CN201310617622.4A Expired - Fee Related CN103750879B (en) 2013-11-28 2013-11-28 A kind of brill cranium device of neurosurgery

Family Applications After (1)

Application Number Title Priority Date Filing Date
CN201310617622.4A Expired - Fee Related CN103750879B (en) 2013-11-28 2013-11-28 A kind of brill cranium device of neurosurgery

Country Status (1)

Country Link
CN (2) CN104825205B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA3044235A1 (en) * 2016-11-17 2018-05-24 Peter L. BONO Rotary oscillating surgical tool
CN107343809B (en) * 2017-08-30 2019-10-18 王兴铧 A kind of skull drilling device of neurosurgery
CN107874808B (en) * 2017-12-15 2024-03-29 温州市中心医院 Cranium driller for neurosurgery operation
CN109893206A (en) * 2019-04-17 2019-06-18 遵义市红花岗区人民医院 A kind of neurosurgery drilling equipment
CN110200676B (en) * 2019-06-05 2020-08-28 解涛 Neurosurgery is with boring cranium ware based on VR technique
CN112545606A (en) * 2020-12-03 2021-03-26 西安交通大学医学院第一附属医院 Skull drill for neurosurgery operation

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4620539A (en) * 1983-07-11 1986-11-04 Andrews E Trent Pistol grip, bone drill
CN87201666U (en) * 1987-07-10 1988-05-04 姜汝明 Geared hand-operated cranium drill
US5219174A (en) * 1990-12-19 1993-06-15 Synthes (U.S.A.) Drill chuck for a drill to be used particularly for surgical purposes
CN1729941A (en) * 2005-08-29 2006-02-08 张庆林 Mirco-traumatic skull drill
CN201558147U (en) * 2010-01-14 2010-08-25 高建红 Craniotomy drilling tool
CN202458556U (en) * 2012-03-01 2012-10-03 刘堃 Rapid hand-cranking skull opening drill

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29500769U1 (en) * 1995-01-22 1995-04-27 Ruebben Alexander Modification of a skull revision drill by mechanical consistency-dependent control and safety device
CA2485904C (en) * 2002-05-31 2013-05-21 Vidacare Corporation Apparatus and method to access the bone marrow
US20050199407A1 (en) * 2002-09-04 2005-09-15 Aesculap Ag & Co. Kg Surgical instrument
CN2750782Y (en) * 2004-10-25 2006-01-11 高勇 Hand rotated type safety skull opening bore
CN201414823Y (en) * 2009-05-26 2010-03-03 金成福 Handle-type automatic skull drilling instrument
CN201775653U (en) * 2010-09-03 2011-03-30 威海鸿宇医疗器械有限公司 Orienting electric skull drill
CN102990123A (en) * 2011-09-13 2013-03-27 江苏八达重工机械有限公司 Novel hand-powered drill

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4620539A (en) * 1983-07-11 1986-11-04 Andrews E Trent Pistol grip, bone drill
CN87201666U (en) * 1987-07-10 1988-05-04 姜汝明 Geared hand-operated cranium drill
US5219174A (en) * 1990-12-19 1993-06-15 Synthes (U.S.A.) Drill chuck for a drill to be used particularly for surgical purposes
CN1729941A (en) * 2005-08-29 2006-02-08 张庆林 Mirco-traumatic skull drill
CN201558147U (en) * 2010-01-14 2010-08-25 高建红 Craniotomy drilling tool
CN202458556U (en) * 2012-03-01 2012-10-03 刘堃 Rapid hand-cranking skull opening drill

Also Published As

Publication number Publication date
CN103750879B (en) 2015-09-02
CN104825205A (en) 2015-08-12
CN103750879A (en) 2014-04-30

Similar Documents

Publication Publication Date Title
CN104825205B (en) A kind of skull drilling device of the neurosurgery of improvement
CN104800063B (en) Scalp mounted maintenance equipment
CN104857881A (en) Vibration type test tube shaking device
CN210056223U (en) Robot rotating device and medical robot
CN202437294U (en) Adjustable thorax puncture needle
CN210021028U (en) Joint surgery postoperative rehabilitation training device
CN203692243U (en) Vertical centrifugal same-directional speed change wire spool
CN105455857B (en) A kind of medullo-puncture needle aids in sting device
CN108006173A (en) Four planet carriers, 11 tooth the first planet carrier secondary planet train formula RCM mechanisms
JP2006110289A5 (en)
CN204501468U (en) A kind of ophthalmologic operation frame
CN209751559U (en) Double-speed oscillating type breast cancer postoperative rehabilitation training device
CN205198408U (en) Dull and stereotyped massage device
CN209361320U (en) Chinese medicine acupuncture takes needle device
CN109718057B (en) Double-speed swing type breast cancer postoperative rehabilitation training device
CN208065258U (en) Medical sternum fixer
CN203016995U (en) Inspectoscope for neurology
CN202365853U (en) Protection drill bit for orthopedics department
CN207921244U (en) Three planet carriers, ten tooth first planet carrier third-level planetary train formula RCM mechanisms
CN201558147U (en) Craniotomy drilling tool
CN206063453U (en) A kind of metallic weapon decontaminating apparatuss
CN208388739U (en) A kind of orthopaedics hand-rail type nail-fetching device
CN205286457U (en) Plug -type hand drill of axial
CN207152623U (en) With the bone drill for penetrating indicator function
JP6265682B2 (en) Beauty Equipment

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
EXSB Decision made by sipo to initiate substantive examination
SE01 Entry into force of request for substantive examination
CB03 Change of inventor or designer information

Inventor after: Zhang Xiuhua

Inventor after: Sun Guotao

Inventor after: Zhang Kai

Inventor before: Zhang Xiuhua

COR Change of bibliographic data
C14 Grant of patent or utility model
GR01 Patent grant