CN201211208Y - Medical milling hand-piece - Google Patents
Medical milling hand-piece Download PDFInfo
- Publication number
- CN201211208Y CN201211208Y CNU2008200994500U CN200820099450U CN201211208Y CN 201211208 Y CN201211208 Y CN 201211208Y CN U2008200994500 U CNU2008200994500 U CN U2008200994500U CN 200820099450 U CN200820099450 U CN 200820099450U CN 201211208 Y CN201211208 Y CN 201211208Y
- Authority
- CN
- China
- Prior art keywords
- milling cutter
- milling machine
- boots body
- outside
- hole
- 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.)
- Expired - Lifetime
Links
- 238000003801 milling Methods 0.000 title claims abstract description 71
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 9
- 239000010959 steel Substances 0.000 claims abstract description 9
- 239000008280 blood Substances 0.000 abstract description 3
- 210000004369 blood Anatomy 0.000 abstract description 3
- 230000002349 favourable effect Effects 0.000 abstract 1
- 210000003625 skull Anatomy 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 2
- 210000005013 brain tissue Anatomy 0.000 description 1
- 238000007428 craniotomy Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004899 motility Effects 0.000 description 1
Images
Landscapes
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Abstract
The utility model relates to a medical hand milling machine, which comprises a body, a main barrel shaft one end of which is in fit connection with the inner wall of the body through a bearing, and a milling cutter one end of which is inserted into the main barrel shaft. The medical hand milling machine is characterized in that one end of a fixed sleeve is positioned and connected with the front part of the body through a pin, both the front part and the middle part outside the fixed sleeve are provided with screw threads, while the back part is provided with a hole which is provided with a steel ball; the bearing is arranged in a hole on the back part of a boot body, and the back part of the boot body is in fit connection with threads on the front part outside the fixed sleeve; the milling cutter passes through the hole on the back part of the boot body, a step in the middle part of the milling cutter is closely supported on the end face of the bearing, and the front end of the milling cutter is matched with the hook part at the front end of the boot body; and a thread lock sleeve is sleeved at the outside on the back part of the boot body and at the outside of the fixed sleeve and matched with screw threads in the middle part of the fixed sleeve. The medical hand milling machine has the following advantages that the medical hand milling machine reduces the volume greatly, is favorable for preventing blood from immerging into the hand milling machine in operation, and improves strength and working reliability.
Description
Technical field
This utility model relates to a kind of medical hand milling machine, is used for the hand milling machine of skull tissue cutting in the power set of especially performing the operation.
Background technology
In carrying out skull operation, generally be the cutting operation of doing the skull tissue by the milling cutter of hand milling machine drive high speed rotating, require hand milling machine to hold good hand touch, in light weight, reliable operation, easy to operate.Existing medical hand milling machine (see figure 1) generally is in the collar aperture of the milling cutter main shaft that inserts hand milling machine to the installation of milling cutter, promotes the lock tube pressing steel balls by spring, and the steel ball repress is realized in the arc groove of milling cutter or gap slot.Outside in this mechanism also will be provided with the fixedly mechanism of boots body, and this mechanism comprises screw thread lock tube and steel ball.The fitting operation of this milling cutter is more convenient, but the hand milling machine volume is bigger; Hand milling machine is bigger because of profile, and it is thicker to hold feel, and weight is also bigger, to the inconvenience to some extent of this very meticulous operation technique of craniotomy.Boots body on this hand milling machine upwards lifts in operation, and the hook on the boots body hangs over the internal face of skull, prevents inside injured brain tissue effect.Turn because will move ahead in the milling with neatly, so the bar portion of boots body must be narrower than milling cutter, sectional dimension can not be big.Because the bar portion sectional dimension of boots body is less, and intensity is affected.The power that lifts that makes progress is bigger in operation, or when bearing power to side, the bar portion easy fracture of boots body.This reliability and operation safety to hand milling machine work has a significant impact.Existing medical hand milling machine, the bar portion cross section of boots body all are by the near one side broad of milling cutter, one side narrower (promptly wide at the top and narrow at the bottom) far away.This structure seems sensuously to be convenient to flexible turning, but intensity is lower.Existing medical hand milling machine, the boots body is enclosed within on the body, and by connecting in the arc groove of screw fastening cover pressing steel balls on body, the screw thread lock tube easily produces loosening, and feel and functional reliability are held in influence.
Summary of the invention
The purpose of this utility model provides a kind of medical hand milling machine, and it is more tiny to have profile, and boots bar cross section is bigger, and the screw thread lock tube is difficult for loosening characteristics, boots body rod intensity height, the reliability height of work.
A kind of medical hand milling machine described in the utility model comprises that body, an end by main, the main tube of an end insertion interior milling cutter that bearing and inner body wall are connected, is characterized in that:
One end of one fixed cover is located by connecting by the front portion of pin and body, and front portion and the middle part outside fixed cover is equipped with screw thread, the rear portion is provided with the hole, is provided with steel ball in this hole;
One bearing is located in the hole at boots body rear portion, and the rear portion of boots body is connected with the forward threaded engagement of fixed cover outside; Milling cutter passes the hole at boots body rear portion, the step at milling cutter middle part and the end face of bearing near, the front end of milling cutter cooperates with the hook portion of boots body front end;
One screw fastening cover is enclosed within the outside at boots body rear portion and the outside of fixed cover, and with the threaded engagement at fixed cover middle part.
The milling cutter of this hand milling machine is installed, and is to realize to the step surface of milling cutter by bearing.After milling cutter inserted the hole of main tube axle, the screw thread lock tube by rotational fixation cover outside was pressed onto steel ball in the arc groove on the body, has both fixed the boots body, has located milling cutter by bearing again, and structure is obviously compact, and volume reduces greatly.Hand milling machine thus can make more tiny, weight is also lighter, the milling cutter fitting operation is equally also convenient.In addition, this structure, because the supporting role of bearing, the gap between milling cutter and the boots body opening can be very little, blood and slime is invaded hand milling machine when helping preventing to perform the operation.
Described a kind of medical hand milling machine, the cross section of the bar portion of its boots body are narrow by the near limit of milling cutter, hem width far away (up-narrow and down-wide).Under the min. turning radius of identical milling track (turning motility), the cross section of the boots body rod portion of the existing hand milling machine of section ratio of the boots body rod portion of this hand milling machine is bigger, thereby the intensity of the bar portion of boots body is also high, easy fracture not, thus improved the reliability of work.
Described a kind of medical hand milling machine is provided with the locking damped ring of rubber at the rear portion of boots body.The rotation of double thread lock tube has damping action, prevents to become flexible, thereby has further improved functional reliability.
This utility model is compared with prior art and is had the following advantages: owing to the fixed cover that is located by connecting in the front portion of body, the rear portion of boots body is connected with the forward threaded engagement of fixed cover outside, the screw thread lock tube is enclosed within the outside at boots body rear portion and the outside of fixed cover again, the institute so that volume reduce greatly; Owing to be provided with bearing in the hole at boots body rear portion, so the gap between milling cutter and the boots body opening can be very little, blood and slime is invaded hand milling machine when helping preventing to perform the operation; Owing to increased the cross section of the bar portion of boots bodies, so improved intensity, be provided with the locking damped ring of rubber at the rear portion of boots body in addition, thereby improved the reliability of work.
Description of drawings
Fig. 1 is the structural representation of existing hand milling machine.
Fig. 2 is the A-A cutaway view (i.e. the sectional view of the bar portion of the boots body of existing hand milling machine) of Fig. 1.
Fig. 3 is a structural representation of the present utility model.
Fig. 4 is the A-A cutaway view (being the sectional view of the bar portion of boots body of the present utility model) of Fig. 3.
The specific embodiment
Referring to Fig. 3 and Fig. 4, a kind of medical hand milling machine described in the utility model comprises that main tube 14, one end that body 16, an end are connected by bearing and inner body wall inserts the interior milling cutter 13 of main tube axle; One end of one fixed cover 15 is located by connecting by the front portion of pin and body 16, is equipped with screw thread at the front portion and the middle part of fixed cover 15 outsides, the rear portion is provided with the hole, is provided with steel ball 18 in this hole; One bearing 20 is located in the hole at boots body 19 rear portions, and the rear portion of boots body 19 is connected with the forward threaded engagement of fixed cover 15 outsides; Milling cutter 13 passes the hole at boots body 19 rear portions, the step at milling cutter middle part and the end face of bearing 20 near, the front end of milling cutter cooperates with the hook portion of boots body 19 front ends; One screw thread lock tube 17 is enclosed within the outside at boots body 19 rear portions and the outside of fixed cover 15, and with the threaded engagement at fixed cover 15 middle parts; The cross section of the bar portion 21 of boots body 19 is for leaning near narrow, the far away hem width in limit of milling cutter.Be provided with the locking damped ring 24 of rubber at the rear portion of boots body 19.
The cross section of the bar portion of existing hand milling machine and boots body is referring to Fig. 1 and Fig. 2.
Claims (3)
1, a kind of medical hand milling machine comprises that main tube spool (14), an end that body (16), an end are connected by bearing and inner body wall insert the interior milling cutter (13) of main tube axle, is characterized in that:
One end of one fixed cover (15) is located by connecting by the front portion of pin and body (16), and front portion and the middle part outside fixed cover (15) is equipped with screw thread, the rear portion is provided with the hole, is provided with steel ball (18) in this hole;
One bearing (20) is located in the hole at boots body (19) rear portion, and the rear portion of boots body (19) is connected with the forward threaded engagement of fixed cover (15) outside; Milling cutter (13) passes the hole at boots body (19) rear portion, the step at milling cutter middle part and the end face of bearing (20) near, the front end of milling cutter cooperates with the hook portion of boots body (19) front end;
One screw thread lock tube (17) is enclosed within the outside at boots body (19) rear portion and the outside of fixed cover (15), and with the threaded engagement at fixed cover (15) middle part.
2, a kind of medical hand milling machine according to claim 1 is characterized in that: the cross section of the bar portion (21) of boots body (19) is for leaning near narrow, the far away hem width in limit of milling cutter.
3, a kind of medical hand milling machine according to claim 1 and 2 is characterized in that: be provided with the locking damped ring of rubber (24) at the rear portion of boots body (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200994500U CN201211208Y (en) | 2008-07-16 | 2008-07-16 | Medical milling hand-piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200994500U CN201211208Y (en) | 2008-07-16 | 2008-07-16 | Medical milling hand-piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201211208Y true CN201211208Y (en) | 2009-03-25 |
Family
ID=40495360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200994500U Expired - Lifetime CN201211208Y (en) | 2008-07-16 | 2008-07-16 | Medical milling hand-piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201211208Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101926672A (en) * | 2010-09-30 | 2010-12-29 | 重庆润泽医疗器械有限公司 | Surgical milling cutter |
| CN102670276A (en) * | 2011-12-12 | 2012-09-19 | 重庆西山科技有限公司 | Skull plate milling hand piece with rotatable meninx protection boot |
| US20130178861A1 (en) * | 2010-09-30 | 2013-07-11 | Chongqing Runze Medical Instruments Co., Ltd. | Surgical milling cutter bracket |
| CN105078539A (en) * | 2015-07-22 | 2015-11-25 | 苏州益诺斯医疗科技有限公司 | Medical reciprocating saw |
-
2008
- 2008-07-16 CN CNU2008200994500U patent/CN201211208Y/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101926672A (en) * | 2010-09-30 | 2010-12-29 | 重庆润泽医疗器械有限公司 | Surgical milling cutter |
| CN101926672B (en) * | 2010-09-30 | 2011-11-16 | 重庆润泽医疗器械有限公司 | Surgical milling cutter |
| WO2012041133A1 (en) * | 2010-09-30 | 2012-04-05 | 重庆润泽医疗器械有限公司 | Surgical milling cutter |
| US20130178861A1 (en) * | 2010-09-30 | 2013-07-11 | Chongqing Runze Medical Instruments Co., Ltd. | Surgical milling cutter bracket |
| US20130184731A1 (en) * | 2010-09-30 | 2013-07-18 | Lei Ye | Surgical milling cutter |
| EP2623052A1 (en) * | 2010-09-30 | 2013-08-07 | Chongqing Runze Medical Instruments Co., Ltd. | Surgical milling cutter |
| EP2623052A4 (en) * | 2010-09-30 | 2014-08-27 | Chongqing Runze Medical Instr | Surgical milling cutter |
| US8900260B2 (en) * | 2010-09-30 | 2014-12-02 | Chongqing Runze Pharmaceutical Co., Ltd | Surgical milling cutter |
| US9282982B2 (en) * | 2010-09-30 | 2016-03-15 | Chongqing Runze Pharmaceutical Co., Ltd. | Surgical milling cutter bracket |
| CN102670276A (en) * | 2011-12-12 | 2012-09-19 | 重庆西山科技有限公司 | Skull plate milling hand piece with rotatable meninx protection boot |
| CN105078539A (en) * | 2015-07-22 | 2015-11-25 | 苏州益诺斯医疗科技有限公司 | Medical reciprocating saw |
| CN105078539B (en) * | 2015-07-22 | 2019-01-11 | 苏州益诺斯医疗科技有限公司 | Medical reciprocating saw |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201211208Y (en) | Medical milling hand-piece | |
| US8371394B2 (en) | Impact mechanism | |
| BRPI1005894A2 (en) | Chisel door and basic part | |
| CN203264150U (en) | Barbell | |
| US3461875A (en) | Rotary lateral osteal cutting bit | |
| CN101204806A (en) | Handgriff | |
| CN212187671U (en) | Muscle rehabilitation auxiliary exercise device | |
| CN114475886A (en) | Fixing structure for steering support and main body support of walk-substituting tool | |
| CN2683040Y (en) | Bone perforating bit capable of stopping in case of penetrating | |
| CN204671265U (en) | A kind of orthopaedics gets nail drill bit | |
| CN113440212A (en) | Medical electric drill with soft tissue protection function | |
| CN212311883U (en) | Novel special tool for disassembling and assembling ball head in automobile steering device | |
| US20030050712A1 (en) | Structure of knee joint stressing device | |
| CN210265609U (en) | Adjusting screw assembly | |
| CN209172416U (en) | One kind opening cranium electric drill | |
| CN208552374U (en) | Examination couch sheet rolls up quick replacement device | |
| CN201365997Y (en) | Medical portable tractor | |
| CN217773138U (en) | Upper limb multi-joint active and passive training instrument | |
| CN201217205Y (en) | Vibration reduction electric hammer | |
| CN208128059U (en) | The structure-improved of electric pushrod | |
| CN206566107U (en) | A kind of wheelchair brake device | |
| CN212861761U (en) | Steering gear of tricycle | |
| CN211704410U (en) | Kitchen paper towel table | |
| CN218228552U (en) | Wear-resistant buffer type thrust rod | |
| CN213008348U (en) | Pull rod assembly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: XISHAN SCIENCE-TECHNOLOY CO., LTD., CHONGQING Free format text: FORMER OWNER: GUO YIJUN Effective date: 20110329 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 400041 BUILDING H, STANDARD FACTORY ROOM, NO. 67, KEYUAN ROAD 3, JIULONGPO DISTRICT, CHONGQING CITY TO: 401121 4/F, DISTRICT 1, (NO. 9, MIDDLE SECTION, HHUANGSHAN AVENUE), MUXING SCI-TECH DEVELPMENT CENTER, NEW + HIGH TECH. ZONE, NEW NORTH DISTRICT, CHONGQING CITY |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20110329 Address after: The 401121 northern New District of Chongqing Municipality Jupiter Technology Development Center (Mount Huangshan Road No. 9 in the middle of a 4 floor area) Patentee after: Chongqing Xishan Technology Co., Ltd. Address before: Three road 400041 Chongqing Jiulongpo Branch Park No. 67 standard factory building H Patentee before: Guo Yijun |
|
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: The 401121 northern New District of Chongqing Municipality Jupiter Technology Development Center (Mount Huangshan Road No. 9 in the middle of a 4 floor area) Patentee after: CHONGQING XISHAN SCIENCE & TECHNOLOGY CO., LTD. Address before: The 401121 northern New District of Chongqing Municipality Jupiter Technology Development Center (Mount Huangshan Road No. 9 in the middle of a 4 floor area) Patentee before: Chongqing Xishan Technology Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20090325 |
|
| CX01 | Expiry of patent term |