CN104161561B - Medical annular saw transmission mechanism - Google Patents
Medical annular saw transmission mechanism Download PDFInfo
- Publication number
- CN104161561B CN104161561B CN201410391847.7A CN201410391847A CN104161561B CN 104161561 B CN104161561 B CN 104161561B CN 201410391847 A CN201410391847 A CN 201410391847A CN 104161561 B CN104161561 B CN 104161561B
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- CN
- China
- Prior art keywords
- band saw
- power transmission
- eccentric shaft
- transmission shaft
- shaft
- 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 - Fee Related
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/14—Surgical saws ; Accessories therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/14—Surgical saws ; Accessories therefor
- A61B17/147—Surgical saws ; Accessories therefor with circularly moving saw blades, i.e. non-reciprocating saw blades
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- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Dentistry (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention discloses a medical annular saw transmission mechanism. The medical annular saw transmission mechanism is in transmission connection with a pneumatic motor and comprises a base plate, a shaft sleeve, an annular saw transmission shaft and a shifting fork, wherein the shaft sleeve is arranged on one side of the base plate, and an eccentric shaft is arranged in the shaft sleeve; the annular saw transmission shaft is arranged on the other side of the base plate and is in transmission connection with an annular saw; the shifting fork is arranged on the base plate and located between the eccentric shaft and the annular saw transmission shaft. According to the medical annular saw transmission mechanism, the problem that an eccentric shaft and an annular saw deflect in the operation process is mainly solved, it is ensured that working is accurate and reliable, the probability of bringing greater trauma to a patient is lowered, and the medical annular saw transmission mechanism is simple in structure, accurate in transmission and modularized in design.
Description
Technical field
The present invention relates to a kind of medicine ring saws drive mechanism.
Background technology
It is often necessary to be excised the osseous tissue breaking down of patient with saw in bone surgery, in cutting, in order to avoid suffering from
Person bleeds excessively, and the wound of cut place is the smaller the better, and this requires that medicine ring saw needs high-speed cutting in less stroke.
Existing medicine ring saws drive mechanism, mostly adopts crank and rocker mechanism.But because structure design is unreasonable, in operation process
Middle eccentric shaft easily deflects, and band saw saw blade is also susceptible to deflect, and causes work unreliable, brings bigger wound to patient
Wound, impact product uses.
Content of the invention
The present invention seeks to：There is provided a kind of medicine ring saw drive mechanism, to avoid eccentric shaft and saw blade to deflect, really
Protect work accurately and reliably.
The technical scheme is that：A kind of medicine ring saws drive mechanism, and it is driven with air motor, and includes：Base
Plate, it is arranged on substrate side and the interior axle sleeve having eccentric shaft, the annular being arranged on substrate opposite side and being in transmission connection with band saw
Saw power transmission shaft and be arranged on substrate and be located at the shift fork between eccentric shaft and band saw power transmission shaft.
On the basis of technique scheme, further include attached technical scheme as follows：
It further includes to be set on band saw power transmission shaft and be located at the plane thrust bearing outside shift fork and be set in
On band saw power transmission shaft and pass through substrate bushing.
Described band saw power transmission shaft is sawed come stationary annular by saw blade fixture, and shift fork is passed through tightening piece and passed with band saw
Moving axis is fixed.
Described substrate includes arranging at one end and house the datum hole of bushing and for several fixing screws of substrate, its
Bottom bracket axle is located at the other end of substrate, and shift fork is located between the two ends of substrate, and is located at substrate near the side of axle sleeve.
Described axle sleeve include for support eccentric shaft a pair of inner bearing, for axial restraint and respectively be located at eccentric shaft two
The jump ring at end, the outer bearing being located on eccentric shaft and being in transmission connection with the breach of shift fork and be arranged on outer bearing and eccentric shaft
Between corrugated gasket.
Described eccentric shaft include spindle nose positioned at one end, be located at the other end and be in transmission connection with air motor driving groove,
Outer axle portion with spindle nose integrally connected and outside being located at axle sleeve and be located at a pair being connected within axle sleeve and with inner bearing
Not on the same line, and the axle center of outer axle portion and supporting part then exists in the axle center of the axle center of supporting part, wherein spindle nose and outer axle portion
On same straight line.
Described band saw power transmission shaft includes positioned at one end and houses the host cavity of band saw, is located at host cavity side and allows
Through hole that saw blade fixture passes through, be located at the other end and allow keyway that tightening piece passes through and be located at keyway at least side and
Prevent anti-loaded mounting plane.
Described band saw power transmission shaft is two stage steps axle, and has sectional area the cutting more than the other end of one end of host cavity
Area, and the section of host cavity is roughly triangular.
The method have the advantages that：
Present invention mainly solves eccentric shaft is in operation process and the problem that deflects in operation process of band saw,
Guarantee work accurately and reliably, reduce and bring bigger wound to patient, structure is simple, transmission is accurate, modularized design.
Brief description
Below in conjunction with the accompanying drawings and embodiment the invention will be further described：
Fig. 1 is the structural representation of running part in the present invention；
Fig. 2 is the cross-sectional schematic of running part in the present invention；
Fig. 3 is the structural representation of running part and air motor in the present invention.
Fig. 4 is the structural representation of running part, air motor and shell in the present invention.
Fig. 5 is the structural representation of eccentric shaft in the present invention.
Fig. 6 is the structural representation of band saw power transmission shaft in the present invention.
Specific embodiment
Embodiment：As Figure 1-4, the invention provides a kind of medicine ring saws the specific embodiment of drive mechanism, its
It is in transmission connection with air motor 70 or similar electro-motor, it includes substrate 10, is arranged on substrate 10 side and interior has bias
The axle sleeve 20 of axle 22, be arranged on substrate 10 opposite side and be in transmission connection with band saw band saw power transmission shaft 30, be arranged on substrate
On 10 and be located at shift fork 40 between eccentric shaft 22 and band saw power transmission shaft 30, be set on band saw power transmission shaft 30 and be located at and dial
Pitch the plane thrust bearing 50 in 40 outsides and be set on band saw power transmission shaft 30 and pass through the bushing 60 of substrate 10.Wherein
Air motor 70 is in transmission connection with eccentric shaft 22, and the tightening piece 42 that shift fork 40 passes through radial direction is fixing with band saw power transmission shaft 30, by
The rotation that this realizes eccentric shaft 22 drives the swing of shift fork 40 to drive band saw power transmission shaft 30 to rotate.Bushing 60 is copper product system
Become.
Substrate 10 is substantially oblong-shaped, at one end and houses the datum hole 12 of bushing 60 and is used for substrate 10 admittedly including setting
Several fixed screws 14.Its bottom bracket axle 20 is located at the other end of substrate 10, and shift fork 40 is located between the two ends of substrate 10, and
Positioned at substrate 10 near the side of axle sleeve 20.
Axle sleeve 20 includes eccentric shaft 22, for supporting a pair of inner bearing 24 of eccentric shaft 22, being used for axial restraint and difference
Jump ring 26 positioned at eccentric shaft 22 two ends, it is located on the spindle nose 220 of eccentric shaft 22 and outer with what the breach of shift fork 40 was in transmission connection
Bearing 28 and be arranged on the corrugated gasket 29 between outer bearing 28 and eccentric shaft 22.Referring again to shown in Fig. 5, eccentric shaft 22 wraps
The driving groove 222 include the spindle nose 220 positioned at one end, being located at the other end and being in transmission connection with air motor is integrally connected with spindle nose 220
Outer axle portion 224 outside connecing and being located at axle sleeve 20 and be located at a pair being connected within axle sleeve 20 and with inner bearing 24
Support part 226.Wherein the axle center of spindle nose 220 and outer axle portion 224 axle center not on the same line, and outer axle portion 224 and supporting part
226 axle center is then on the same line, and at regular intervals between inner bearing 24, and enters between-line spacing by axle sleeve therebetween.
As shown in fig. 6, band saw power transmission shaft 30 includes positioned at one end and houses the host cavity 31 of band saw, is located at host cavity
31 sides and allow through hole 32 that saw blade fixture passes through, be located at the other end and allow keyway 34 that tightening piece 42 passes through and
Positioned at keyway 34 at least side and prevent anti-loaded mounting plane 36.Wherein band saw power transmission shaft 30 is preferably two stage steps axle,
One end cross-sectional area with host cavity 31 is more than the other end, and the section of host cavity 31 is roughly triangular, and through hole 32 radial direction side
Connect to host cavity 31.Tightening piece 42 carrys out stationary annular saw power transmission shaft 30 through keyway 34 simultaneously, can effectively prevent power transmission shaft
In the motion in axially and radially direction, the through hole 32 that saw blade fixture passes through radial direction can effectively stationary annular be sawed.
The output shaft of air motor 70 transmits power to eccentric shaft 22, thus both driving inner bearing 24 on eccentric shaft 22
Rotate around outer bearing 28 axle, and around eccentric shaft 22 axis rotation, thus driving shift fork 40 to swing, and the swing band of shift fork 40
Dynamic band saw power transmission shaft 30 swings.
Realize turning to swing by eccentric shaft by this present invention, and prevent band saw from deflecting using plane thrust bearing,
Realize accurately being driven in the duplex bearing by eccentric shaft with a determining deviation side by side, solve eccentric shaft in operation process and
, it is ensured that work accurately and reliably, reduces user using inconvenience, structure is simple for the problem that band saw deflects in operation process,
Transmission is accurate, modularized design.
Certainly above-described embodiment only technology design to illustrate the invention and feature, its object is to allow and is familiar with technique
People will appreciate that present disclosure and implement according to this, can not be limited the scope of the invention with this.All according to this
Equivalent transformation or modification that the spirit of bright main technical schemes is done, all should be included within the scope of the present invention.
Claims (6)
1. a kind of medicine ring saw drive mechanism is it is characterised in that it includes：Elliptical base (10), it is arranged on elliptical base
(10) side and the interior axle sleeve (20) having eccentric shaft (22), be arranged on elliptical base (10) opposite side and be driven even with band saw
The band saw power transmission shaft (30) that connects, to be arranged on elliptical base (10) upper and be located at eccentric shaft (22) and band saw power transmission shaft (30)
Between shift fork (40), be set in band saw power transmission shaft (30) upper and be located at plane thrust bearing (50) outside shift fork (40),
Go up and the bushing (60) through elliptical base (10) with being set in band saw power transmission shaft (30), wherein said band saw power transmission shaft
(30) sawed come stationary annular by saw blade fixture, and shift fork (40) passes through tightening piece (42) with band saw power transmission shaft (30) admittedly
Fixed.
2. as claimed in claim 1 a kind of medicine ring saw drive mechanism it is characterised in that：Described elliptical base (10) bag
Include setting at one end and house the datum hole (12) of bushing (60) and several screws (14) fixed for substrate (10), wherein
Axle sleeve (20) is located at the other end of substrate (10), and shift fork (40) is located between the two ends of elliptical base (10), and is located at ellipse
Circular substrate (10) is near the side of axle sleeve (20).
3. as claimed in claim 1 or 2 a kind of medicine ring saw drive mechanism it is characterised in that：Described axle sleeve (20) includes
For supporting a pair of inner bearing (24) of eccentric shaft (22), for axial restraint and respectively positioned at the jump ring at eccentric shaft (22) two ends
(26), it is located at the outer bearing (28) that eccentric shaft (22) is upper and breach of with shift fork (40) is in transmission connection and be arranged on outer bearing
(28) corrugated gasket (29) and eccentric shaft (22) between.
4. as claimed in claim 3 a kind of medicine ring saw drive mechanism it is characterised in that：Described eccentric shaft (22) includes position
In one end spindle nose (220), be located at the other end and the driving groove (222) that is in transmission connection with air motor and spindle nose (220) integrally
Outer axle portion (224) outside connecting and being located at axle sleeve (20) and be located within axle sleeve (20) and coordinate even with inner bearing (24)
The axle center of a pair of the supporting part (226) connecing, the wherein axle center of spindle nose (220) and outer axle portion (224) is not on the same line, and outer
The axle center of axle portion (224) and supporting part (226) is then on the same line.
5. as claimed in claim 4 a kind of medicine ring saw drive mechanism it is characterised in that：Described band saw power transmission shaft (30)
Including positioned at one end and house the host cavity (31) of band saw, be located at host cavity (31) side allow saw blade fixture to pass through
Through hole (32), be located at the other end and allow tightening piece (42) keyway (34) that passes through and be located at keyway (34) at least side and
Prevent anti-loaded mounting plane (36).
6. as claimed in claim 5 a kind of medicine ring saw drive mechanism it is characterised in that：Described band saw power transmission shaft (30)
For two stage steps axle, and there is the sectional area that the sectional area of one end of host cavity (31) is more than the other end, and host cavity (31)
Section is roughly triangular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410391847.7A CN104161561B (en) | 2014-08-11 | 2014-08-11 | Medical annular saw transmission mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410391847.7A CN104161561B (en) | 2014-08-11 | 2014-08-11 | Medical annular saw transmission mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104161561A CN104161561A (en) | 2014-11-26 |
| CN104161561B true CN104161561B (en) | 2017-02-15 |
Family
ID=51905705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410391847.7A Expired - Fee Related CN104161561B (en) | 2014-08-11 | 2014-08-11 | Medical annular saw transmission mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104161561B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107753085A (en) * | 2016-08-22 | 2018-03-06 | 上海博进医疗器械有限公司 | Jaw face shell pen type goose saw structure |
| CN108030530A (en) * | 2017-12-25 | 2018-05-15 | 芜湖锐进医疗设备有限公司 | Medical trepan |
| CN108278346A (en) * | 2018-02-12 | 2018-07-13 | 苏州益诺斯医疗科技有限公司 | A kind of transmission mechanism of Medical vertical saw |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4281457A (en) * | 1979-10-17 | 1981-08-04 | Black & Decker Inc. | Vacuum-operated cutting tool and system therefor |
| CN200939947Y (en) * | 2006-08-03 | 2007-08-29 | 北京市邮政科学研究所 | Smoke-free friction type adhering mechanism |
| CN101032416A (en) * | 2007-03-30 | 2007-09-12 | 苏州华晟手术医疗器械有限公司 | Medical swing saw |
| US20110209888A1 (en) * | 2010-02-27 | 2011-09-01 | C Enterprise (Hk) Limited | Hand-held oscillatory power tool with two-axis tool mounting |
| CN201701254U (en) * | 2010-07-05 | 2011-01-12 | 重庆西山科技有限公司 | Medical mobile phone with small swing saw |
| CN204106115U (en) * | 2014-08-11 | 2015-01-21 | 苏州益诺斯医疗科技有限公司 | A kind of medicine ring saw drive mechanism |
-
2014
- 2014-08-11 CN CN201410391847.7A patent/CN104161561B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN104161561A (en) | 2014-11-26 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170215 Termination date: 20210811 |
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| CF01 | Termination of patent right due to non-payment of annual fee |