CN209203345U - A kind of drill bit bone bits extraction detection device - Google Patents
A kind of drill bit bone bits extraction detection device Download PDFInfo
- Publication number
- CN209203345U CN209203345U CN201822005774.XU CN201822005774U CN209203345U CN 209203345 U CN209203345 U CN 209203345U CN 201822005774 U CN201822005774 U CN 201822005774U CN 209203345 U CN209203345 U CN 209203345U
- Authority
- CN
- China
- Prior art keywords
- drill bit
- chip removal
- chip
- detection device
- drill
- 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
Links
Landscapes
- Surgical Instruments (AREA)
Abstract
It is considered to be worth doing the utility model discloses a kind of drill bit bone and extracts detection device, including drilling machine main engine device and the drill bit being detachably connected with drilling machine main engine device;Vacuum suction driving device and chip removal pipeline are provided in drilling machine main engine device;Vacuum suction driving device is arranged on chip removal pipeline;Drill bit includes drill body, the chip removal chamber being arranged in inside drill body, and the chip-removal hole on bit-body face is arranged in;Chip removal chamber is arranged from the head end of drill body to tail end extending direction;The head end of chip removal chamber is connected to chip-removal hole, and the tail end of chip removal chamber is connected to the chip removal pipeline on drilling machine main engine device.Drill bit bone bits provided by the utility model extract detection device, can implement the detection operation of bone density while drilling, and can implement effective boring action to harder sclerotin, and chip removal effect is significant;Meanwhile operating time is greatly saved, the complication such as intraoperative hemorrhage, bone dissolution, foreign body reaction are reduced, procedure efficiency is improved.
Description
Technical field
The utility model relates to the field of medical instrument technology more particularly to a kind of drill bit bone bits to extract detection device.
Background technique
It is well known that doctor can largely use drill bit device in Orthopedic Clinical operation.In the tool of traditional drill bit device
In body structure, drill bit device is generally by structure compositions such as drill bit, drilling machine main engine devices.The groundwork of above-mentioned drill bit device acts on
It is: needs the surface of aperture to implement drilling operation in bone (or sclerotin).
But traditional drill bit device, when implementing boring action for the harder interface of sclerotin, drill bit device can not be more preferable
Implementation chip removal effect.
To sum up, how to overcome the above-mentioned technological deficiency of traditional technology is that those skilled in the art's technology urgently to be solved is asked
Topic.
Utility model content
It is considered to be worth doing the purpose of this utility model is to provide a kind of drill bit bone and extracts detection device, to solve the above problems.
In order to achieve the above object, the technical solution of the utility model is achieved in that
The utility model provides a kind of drill bit bone bits and extracts detection device, including drilling machine main engine device and with the drilling machine
The drill bit that host apparatus is detachably connected;
Wherein, vacuum suction driving device and chip removal pipeline are provided in the drilling machine main engine device;The vacuum suction
Driving device is arranged on the chip removal pipeline;
The drill bit includes drill body, the chip removal chamber being arranged in inside drill body, is arranged on bit-body face
Chip-removal hole;The chip removal chamber is arranged from the head end of the drill body to tail end extending direction;The head end of the chip removal chamber
It is connected to the chip-removal hole, the tail end of the chip removal chamber is connected to the chip removal pipeline on the drilling machine main engine device.
Preferably, as a kind of implementable solution;The chip-removal hole be arranged at the top side location of the drill body or
It is at circumferential side wall position.
Preferably, as a kind of implementable solution;The chip-removal hole be it is multiple, multiple chip-removal holes are arranged in drill bit sheet
At the circumferential side wall position of body.
Preferably, as a kind of implementable solution;Multiple chip-removal hole uniform intervals are arranged in the drill body
On circumferential side wall position.
Preferably, as a kind of implementable solution;The chip removal chamber is the cavity of circular in cross-section shape.
Preferably, as a kind of implementable solution;The chip removal chamber its diameter from the head end of the drill body to tail end
Size becomes larger.
Preferably, as a kind of implementable solution;The vacuum suction driving device is to vacuumize kinetic pump.
Preferably, as a kind of implementable solution;Drill bit bone bits extract detection device further include detection sensor and
Controller;The detection sensor is electrically connected with the controller.
Preferably, as a kind of implementable solution;The detection sensor is hardness transducer.
Compared with prior art, it is the advantages of the utility model embodiment:
A kind of drill bit bone bits provided by the utility model extract detection device, analyze above-mentioned drill bit bone bits and extract detection device
Primary structure known to: above-mentioned drill bit bone bits extract detection device, mainly by structure compositions such as drilling machine main engine device and drill bits;
Wherein, vacuum suction driving device and chip removal pipeline are provided in the drilling machine main engine device;The vacuum suction driving device
It is arranged on the chip removal pipeline;The drill bit includes drill body, the chip removal chamber being arranged in inside drill body, and setting is being bored
Chip-removal hole on head body surface;The chip removal chamber is arranged from the head end of the drill body to tail end extending direction;It is described
The head end of chip removal chamber is connected to the chip-removal hole, and the chip removal pipeline on the tail end of the chip removal chamber and the drilling machine main engine device connects
It is logical.
In the specific use process, vacuum suction driving device and chip removal pipeline are provided in drilling machine main engine device, and
And vacuum suction driving device is arranged on chip removal pipeline, can use the negative-pressure sucking effect pair of vacuum suction driving device
Chip removal pipeline implements vacuum suction.
Meanwhile drill bit includes drill body, the chip removal chamber being arranged in inside drill body, is arranged on bit-body face
Chip-removal hole;The head end of chip removal chamber is connected to chip-removal hole, and the tail end of chip removal chamber is connected to the chip removal pipeline on drilling machine main engine device,
So a complete chip removal path (or chip removal access) is just formed by chip-removal hole to chip removal chamber and chip removal pipeline.It is logical
It crosses above-mentioned vacuum suction driving device to attract, when drill body is implemented to drill, so that it may by bone bits successively by chip-removal hole, row
It considers chamber to be worth doing and chip removal pipeline implements discharge.Above-mentioned chip removal process, under sufficiently being cut at the intracorporal sclerotin face hole to be drilled of human body
The bone bits come are discharged in external drilling machine main engine device, are then exported again.
Detailed description of the invention
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art
Under the premise of labour, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the surface structure schematic diagram that the drill bit bone bits that the utility model embodiment one provides extract detection device;
Fig. 2 is the perspective structure signal that the drill bit bone bits that the utility model embodiment one provides in Fig. 1 extract detection device
Figure;
Fig. 3 is the partial structural diagram that the drill bit bone bits that Fig. 2 the utility model embodiment one provides extract detection device.
Label:
Drilling machine main engine device 1;Vacuum suction driving device 11;Chip removal pipeline 12;
Drill bit 2;Drill body 21;Chip removal chamber 22;Chip-removal hole 23.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally
Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical
Novel protected range.
In the description of the present invention, it should be noted that the word of the orientation or positional relationship of certain instructions, only
It is the utility model and simplified description for ease of description, rather than the device or element of indication or suggestion meaning must have spy
Fixed orientation is constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.
In the description of the present invention, it should be noted that " connection " shall be understood in a broad sense, for example, it may be fixed
Connection, may be a detachable connection, or be integrally connected;It can be mechanical connection, be also possible to be electrically connected;It can be directly
It is connected, the connection inside two elements can also be can be indirectly connected through an intermediary.For the ordinary skill of this field
For personnel, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
The utility model is further described in detail below through specific implementation examples and in conjunction with the accompanying drawings.
Embodiment one
Referring to Fig. 1, Fig. 2, Fig. 3, the utility model embodiment one provides a kind of drill bit bone bits extraction detection device, including
Drilling machine main engine device 1 and the drill bit 2 being detachably connected with the drilling machine main engine device;
Wherein, vacuum suction driving device 11 and chip removal pipeline 12 are provided in the drilling machine main engine device 1;The negative pressure
Driving device 11 is attracted to be arranged on the chip removal pipeline 12;
The drill bit 2 includes drill body 21, the chip removal chamber 22 being arranged in inside drill body, is arranged in drill body table
Chip-removal hole 23 on face;The chip removal chamber 22 is arranged from the head end to tail end extending direction of the drill body 21;The row
The head end of bits chamber 22 is connected to the chip-removal hole 23, the chip removal on the tail end of the chip removal chamber 22 and the drilling machine main engine device 1
Pipeline 12 is connected to.
Analyze above-mentioned drill bit bone bits to extract known to the primary structure of detection device: above-mentioned drill bit bone bits extract detection device,
It is mainly by structure compositions such as drilling machine main engine device and drill bits;Wherein, vacuum suction drive is provided in the drilling machine main engine device
Dynamic device and chip removal pipeline;The vacuum suction driving device is arranged on the chip removal pipeline;The drill bit includes drill bit sheet
Body, the chip removal chamber being arranged in inside drill body, are arranged in the chip-removal hole on bit-body face;The chip removal chamber is from the brill
It is arranged on the head end to tail end extending direction of head ontology;The head end of the chip removal chamber is connected to the chip-removal hole, the chip removal chamber
Tail end be connected to the chip removal pipeline on the drilling machine main engine device.
In the specific use process, vacuum suction driving device and chip removal pipeline are provided in drilling machine main engine device, and
And vacuum suction driving device is arranged on chip removal pipeline, can use the negative-pressure sucking effect pair of vacuum suction driving device
Chip removal pipeline implements vacuum suction;Meanwhile drill bit includes drill body, the chip removal chamber being arranged in inside drill body, setting exists
Chip-removal hole on bit-body face;The head end of chip removal chamber is connected to chip-removal hole, on the tail end and drilling machine main engine device of chip removal chamber
Chip removal pipeline connection, a complete chip removal path is just so formed by chip-removal hole to chip removal chamber and chip removal pipeline
(or chip removal access).Attracted by above-mentioned vacuum suction driving device, when drill body is implemented to drill, so that it may consider bone to be worth doing
Successively implement discharge by chip-removal hole, chip removal chamber and chip removal pipeline.Above-mentioned chip removal process, can be sufficiently intracorporal to be drilled by human body
The bone bits cut at the sclerotin face of hole are discharged in external drilling machine main engine device, are then exported again.
In addition, a kind of drill bit bone bits provided by the utility model extract detection device, it can be close to implement bone in drilling
The detection operation of degree can implement effective boring action to harder sclerotin, and chip removal effect is significant.Simultaneously as bone
Bits discharge in time, therefore operating time is greatly saved in it, reduces the complication such as intraoperative hemorrhage, bone dissolution, foreign body reaction, mentions
High procedure efficiency.
Consider the specific structure and particular technique effect for extracting detection device to be worth doing to drill bit bone provided by the utility model below
It does and is described in detail:
Preferably, as a kind of implementable solution;The chip-removal hole 23 is arranged at the top side location of the drill body
Or at circumferential side wall position.The chip-removal hole be it is multiple, the circumferential side wall position of drill body is arranged in multiple chip-removal holes
Set place.
It should be noted that above-mentioned chip-removal hole 23 can be installed in the specific technical solution of the utility model embodiment
It is arranged at the top side location of drill body, it can be achieved that the bone bits sucking (or absorption) at drill body top side location;Together
It can be set at circumferential side wall position sample, and the quantity of chip-removal hole can be one or multiple, and to circumferential side wall position
The bone bits at the place of setting are sucked.
Preferably, as a kind of implementable solution;The chip removal chamber 22 is the cavity of circular in cross-section shape.
It should be noted that above-mentioned chip removal chamber 22 is mounted in the specific technical solution of the utility model embodiment
Cavity in bit location, chip removal chamber can carry out interface connection with the chip removal pipeline 12 of subsequent drilling machine main engine device.It is above-mentioned
It is preferable to use the cavity for circular in cross-section shape, which is more advantageous to it and realizes with chip removal pipeline 12 chip removal chamber 22
Interface connection (such as: realize that the interface of the two connects by hose), facilitate discharge bone bits.
Preferably, as a kind of implementable solution;The chip removal chamber 22 from the head end of the drill body 21 to tail end its
Diameter dimension becomes larger.
It should be noted that in the specific technical solution of the utility model embodiment, above-mentioned chip-removal hole 23 its from drill bit
21 head end of ontology to tail end diameter dimension becomes larger, and why is designed into a kind of cavity that bore becomes larger, because
(i.e. bone is considered to be worth doing during output, and the cavity of approach is straight for the quick extraction and output that such cavity is more advantageous to bone bits
Diameter is increasing, facilitates a large amount of bone bits discharges in time).
Preferably, as a kind of implementable solution;The vacuum suction driving device 11 is to vacuumize kinetic pump.
It should be noted that in the specific technical solution of the utility model embodiment, above-mentioned vacuum suction driving device
11 can choose multiple structural forms (such as: vacuumizing other negative pressure suction devices such as kinetic pump), but in most preferred skill
In art scheme, it is preferable to use vacuumize kinetic pump for the vacuum suction driving device 11;It is above-mentioned vacuumize kinetic pump have vacuumize
It works well, vacuumizes the technical characterstics such as powerful.
Preferably, as a kind of implementable solution;Drill bit bone bits extract detection device further include detection sensor and
Controller;The detection sensor is electrically connected with the controller.It further includes for driving that the drill bit bone bits, which extract detection device,
The motor of dynamic drill bit rotation;The detection sensor feeds back to controller for detecting to the bone density of bone;It is described
Controller controls the output power of motor and vacuumizes the output work of kinetic pump according to the current bone density numerical value detected
Rate.
It should be noted that detection sensor is used for bone in the specific technical solution of the utility model embodiment
Bone density detected, and feed back to controller;Then according to the analysis data of bone density, control drill bit driving torque is obtained
And velocity of rotation, and the case where vacuumizing is controlled simultaneously.Specifically, controller is according to the current bone density number detected
Value, controls the output power of motor;When detecting that current bone density is larger (when detecting current bone density greater than upper limit value),
It then can control drilling bit high-speed rotation, the output of high torque realizes strong-force drilling (on the contrary, when detecting that current bone density is smaller
(when detecting current bone density less than lower limit value) then can control drill bit realization and slowly run, and realize the output of low torque,
It drills in such a way that power more mitigates).Meanwhile it is main vacuum suction driving device that this, which vacuumizes kinetic pump,;Control
Device can also vacuumize the output of kinetic pump according to the current bone density Numerical Control detected;Such as: when detect when prebone it is close
When spending larger, then it can control and vacuumize kinetic pump, reinforce output power, implement strong pumping, to be considered to be worth doing to a large amount of bone real
Apply high efficiency extraction movement.On the contrary, then can control when detecting that current bone density is smaller and vacuumize kinetic pump, reduce defeated
Power out reduces suction force, so that the extraction for implementing general efficiency to bone bits acts, realizes energy-efficient technical purpose.
Preferably, as a kind of implementable solution;The detection sensor is hardness transducer.
It should be noted that above-mentioned hardness transducer can be experienced in the specific technical solution of the utility model embodiment
Material hardness (such as: detect sclerotin hardness to be drilled) and be converted into subsequent to identify the output signal used, it is then issued to control
Device is identified;It can detecte the sclerotin situation at different location by above-mentioned hardness transducer, and then controller is according to the bone
Matter situation obtains relevant bone density data or hardness data.
Drill bit bone bits provided by the embodiment of the utility model extract the technical advantage that detection device has following aspect:
One, drill bit bone bits provided by the embodiment of the utility model extract detection device, and structure design is more reasonable;Wherein,
Vacuum suction driving device and chip removal pipeline are provided in drilling machine main engine device;Vacuum suction driving device is arranged in chip removal pipeline
On;Drill bit includes drill body, the chip removal chamber being arranged in inside drill body, and the chip-removal hole on bit-body face is arranged in;
Chip removal chamber is arranged from the head end of drill body to tail end extending direction;The head end of chip removal chamber is connected to chip-removal hole, chip removal chamber
Tail end is connected to the chip removal pipeline on drilling machine main engine device.It will be apparent that above-mentioned vacuum suction driving device and chip removal pipeline, drill bit
Ontology, chip removal chamber, connection relationship and positional relationship between chip-removal hole specific structure have reasonable layout designs;Therefore originally
The drill bit bone bits that utility model embodiment provides extract detection device, and technical construction is more reasonable, and function is more perfect, practical
Property is also stronger.
Two, drill bit bone bits provided by the embodiment of the utility model extract detection device, in the specific use process, drilling machine
Vacuum suction driving device and chip removal pipeline are provided in host apparatus, and vacuum suction driving device is arranged in chip removal pipeline
On, the negative-pressure sucking effect that can use vacuum suction driving device implements vacuum suction to chip removal pipeline;Meanwhile drill bit packet
The chip removal chamber for including drill body, being arranged in inside drill body, is arranged in the chip-removal hole on bit-body face;The head of chip removal chamber
End is connected to chip-removal hole, and the tail end of chip removal chamber is connected to the chip removal pipeline on drilling machine main engine device, so by above-mentioned negative
Pressure attract driving device attract, drill body implement drill when, so that it may by bone bits successively by chip-removal hole, chip removal chamber and
Chip removal pipeline implements discharge.Above-mentioned chip removal process can sufficiently consider the bone cut at the intracorporal sclerotin face hole to be drilled of human body to be worth doing
It is discharged in external drilling machine main engine device, then exports again.In addition, above-mentioned drill bit bone bits extract detection device, it can be with side
The detection operation for the side implementation bone density that drills can implement effective boring action to harder sclerotin, and chip removal effect is aobvious
It writes.
Based on above many significant technical advantages, drill bit bone bits provided by the utility model extract detection device will band
Come good market prospects and economic benefit.
Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the utility model, rather than it is limited
System;Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should
Understand: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of
Technical characteristic is equivalently replaced;And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and this is practical new
The range of each embodiment technical solution of type.
Claims (9)
1. a kind of drill bit bone bits extract detection device, which is characterized in that filled including drilling machine main engine device and with the drilling machine main engine
Set the drill bit being detachably connected;
Wherein, vacuum suction driving device and chip removal pipeline are provided in the drilling machine main engine device;The vacuum suction driving
Device is arranged on the chip removal pipeline;
The drill bit includes drill body, the chip removal chamber being arranged in inside drill body, and the row on bit-body face is arranged in
Consider hole to be worth doing;The chip removal chamber is arranged from the head end of the drill body to tail end extending direction;The head end of the chip removal chamber and institute
Chip-removal hole connection is stated, the tail end of the chip removal chamber is connected to the chip removal pipeline on the drilling machine main engine device.
2. drill bit bone bits as described in claim 1 extract detection device, which is characterized in that
The chip-removal hole is arranged at the top side location of the drill body or at circumferential side wall position.
3. drill bit bone bits as described in claim 1 extract detection device, which is characterized in that
The chip-removal hole be it is multiple, multiple chip-removal holes are arranged at the circumferential side wall position of drill body.
4. drill bit bone bits as claimed in claim 3 extract detection device, which is characterized in that
Multiple chip-removal hole uniform intervals are arranged on the circumferential side wall position of the drill body.
5. drill bit bone bits as described in claim 1 extract detection device, which is characterized in that
The chip removal chamber is the cavity of circular in cross-section shape.
6. drill bit bone bits as described in claim 1 extract detection device, which is characterized in that
From the head end of the drill body to tail end, its diameter dimension becomes larger the chip removal chamber.
7. drill bit bone bits as described in claim 1 extract detection device, which is characterized in that
The vacuum suction driving device is to vacuumize kinetic pump.
8. drill bit bone bits as described in claim 1 extract detection device, which is characterized in that
It further includes detection sensor and controller that the drill bit bone bits, which extract detection device,;The detection sensor and the control
Device electrical connection.
9. drill bit bone bits as claimed in claim 8 extract detection device, which is characterized in that
The detection sensor is hardness transducer.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201822005774.XU CN209203345U (en) | 2018-11-29 | 2018-11-29 | A kind of drill bit bone bits extraction detection device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201822005774.XU CN209203345U (en) | 2018-11-29 | 2018-11-29 | A kind of drill bit bone bits extraction detection device |
Publications (1)
Publication Number | Publication Date |
---|---|
CN209203345U true CN209203345U (en) | 2019-08-06 |
Family
ID=67462428
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201822005774.XU Active CN209203345U (en) | 2018-11-29 | 2018-11-29 | A kind of drill bit bone bits extraction detection device |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN209203345U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109363730A (en) * | 2018-11-29 | 2019-02-22 | 北京天星博迈迪医疗器械有限公司 | A kind of drill bit bone bits extraction detection device |
-
2018
- 2018-11-29 CN CN201822005774.XU patent/CN209203345U/en active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109363730A (en) * | 2018-11-29 | 2019-02-22 | 北京天星博迈迪医疗器械有限公司 | A kind of drill bit bone bits extraction detection device |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS62292154A (en) | Ultrasonic living body tissue cutting probe | |
CN105781419B (en) | For broken ground drilling center deslagging injection type suction drilling tool and its application method | |
CN209203345U (en) | A kind of drill bit bone bits extraction detection device | |
CN105127829A (en) | Quick collector for borings | |
CN204486857U (en) | Preventing scrap noise control electric drill protective device | |
CN109363730A (en) | A kind of drill bit bone bits extraction detection device | |
CN208358725U (en) | A kind of electric drill with dust-absorbing function | |
CN201579852U (en) | Inverted conical woodworking spiral drill | |
CN207832487U (en) | A kind of concrete core drilling machine | |
JP3254533B2 (en) | Sludge sampling method using percussion drill and its equipment | |
CN208426165U (en) | A kind of multifunctional skull brill | |
CN109570577A (en) | A kind of deep hole machining bta deep hole drilling and its drilling process | |
CN211571822U (en) | Rotary cutting device for suction nozzle of soil suction machine | |
CN207971432U (en) | A kind of essence drill spindle case combined mechanism | |
CN207189580U (en) | The processing unit (plant) of Broken bolt internal point in a kind of body | |
CN215239647U (en) | Numerical control lathe piece collection device | |
CN207679494U (en) | Medical bit | |
CN207286101U (en) | Medical modified form cooling bone abrasive drilling | |
CN209713056U (en) | A kind of clear stone sheath of combined type | |
CN207952723U (en) | A kind of four land thin-walled composite drill bit of two-edged | |
CN202767919U (en) | Mining drilling drainage and dust removal device | |
CN109611029A (en) | Geological reamer | |
CN211796951U (en) | Dental high-speed handpiece head and dental high-speed handpiece | |
CN106182456B (en) | A kind of dust removal construction material perforating device | |
JP2003302412A5 (en) |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant | ||
CP01 | Change in the name or title of a patent holder | ||
CP01 | Change in the name or title of a patent holder |
Address after: A018, 1st floor, building 1, 25 Jinghai 2nd Road, Beijing Economic and Technological Development Zone, Beijing Patentee after: Beijing Tianxing Medical Co.,Ltd. Address before: A018, 1st floor, building 1, 25 Jinghai 2nd Road, Beijing Economic and Technological Development Zone, Beijing Patentee before: BEIJING TIANXING BOMAIDI MEDICAL EQUIPMENT Co.,Ltd. |