CN214907964U - Syringe propeller - Google Patents
Syringe propeller Download PDFInfo
- Publication number
- CN214907964U CN214907964U CN202120925580.0U CN202120925580U CN214907964U CN 214907964 U CN214907964 U CN 214907964U CN 202120925580 U CN202120925580 U CN 202120925580U CN 214907964 U CN214907964 U CN 214907964U
- Authority
- CN
- China
- Prior art keywords
- thrust bearing
- push rod
- syringe
- shell
- accommodating cavity
- 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
- 230000000087 stabilizing effect Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 10
- 239000002639 bone cement Substances 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 230000000007 visual effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000007599 discharging Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model provides a syringe propeller, a serial communication port, include: shell, outer push rod, propulsion piece and thrust bearing, wherein: the outer shell is provided with an accommodating cavity, two ends of the accommodating cavity are communicated with the outer shell, an internal thread is arranged at the first end of the accommodating cavity, an external thread matched with the internal thread is arranged on the side surface of the outer push rod, and the outer shell is connected with the outer push rod through the thread; the thrust bearing and the propelling block are located in the accommodating cavity, the thrust bearing is located between the propelling block and the outer push rod, the propelling block is connected with the second surface of the thrust bearing, the outer push rod is connected with the first surface of the thrust bearing, the first surface and the second surface of the thrust bearing are perpendicular to the axis of the thrust bearing, and the first surface and the second surface of the thrust bearing are opposite to each other. The embodiment of the utility model provides a through using thrust bearing to eliminate the radial stress of outer push rod in rotatory in-process, avoided the radial deformation that appears in the use, improved life.
Description
Technical Field
The utility model relates to the technical field of medical equipment, concretely relates to syringe propeller.
Background
The bone cement injector is a medical instrument currently applied to vertebroplasty. The current bone cement injectors generally design the propeller as a rotary propeller type structure due to the large injection pressure thereof. In the related art, the bone cement injector is easy to damage and short in service life due to the use of a rotary push type structure.
It can be seen that the related art syringe has a problem of short lifespan.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a syringe propeller, a serial communication port, include: shell, outer push rod, propulsion piece and thrust bearing, wherein:
the shell is provided with an accommodating cavity, two ends of the accommodating cavity are communicated with the shell, a first end of the accommodating cavity is provided with an internal thread, the side surface of the outer push rod is provided with an external thread matched with the internal thread, and the shell is connected with the outer push rod through the thread;
the thrust bearing with the propulsion piece is located the holding intracavity, just the thrust bearing is located the propulsion piece with between the outer push rod, the propulsion piece with the second surface butt of thrust bearing, outer push rod with the first surface of thrust bearing is connected, the first surface and the second surface perpendicular to of thrust bearing the axis, the first surface and the second surface of thrust bearing back to back.
The embodiment of the utility model provides an in, through using thrust bearing with radial stress relief, avoid the radial deformation in the use, improved life.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is a schematic structural diagram of a syringe pusher according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a syringe pusher and a syringe provided by an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, of the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1, an embodiment of the present invention provides a syringe pusher, which is characterized in that it includes: housing 10, outer push rod 11, propulsion block 12 and thrust bearing 13, wherein:
the outer shell 10 is provided with an accommodating cavity 101, two ends of the accommodating cavity 101 are communicated with the outer shell 10, a first end of the accommodating cavity 101 is provided with an internal thread, the side surface of the outer push rod 11 is provided with an external thread matched with the internal thread, and the outer shell 10 is connected with the outer push rod 11 through the thread;
the thrust bearing 13 and the thrust block 12 are located in the accommodating cavity 101, the thrust bearing 13 is located between the thrust block 12 and the outer push rod 11, the thrust block 12 is connected with a second surface of the thrust bearing 13, the outer push rod 11 is connected with a first surface of the thrust bearing 13, the first surface and the second surface of the thrust bearing 13 are perpendicular to the axis of the thrust bearing 13, and the first surface and the second surface of the thrust bearing 13 are opposite.
In the embodiment, the thrust bearing 13 is arranged between the propelling block 12 and the outer push rod 11, so that the axial stress is counteracted, the radial deformation in the use process is avoided, and the service life is prolonged.
Specifically, during the use process, the operator rotates the outer push rod 11, the outer push rod 11 drives the thrust bearing 13 to move forward, the first surface of the thrust bearing 13 is driven by the outer push rod 11 to rotate and move forward, the second surface of the thrust bearing 13 does not rotate but moves forward, and the thrust block 12 is driven by the thrust bearing 13 to move forward. Radial stress caused by rotation of the outer push rod 11 is offset in a mode of relative rotation of the first surface and the second surface of the reasoning bearing, radial deformation in the using process is avoided, and the service life is prolonged.
Optionally, as shown in fig. 2, the pushing block 12 includes a moving block 121, a bolt 122, and a washer 123, wherein:
the moving block 121 abuts against the second surface of the thrust bearing 13;
a groove 1211 is formed in one side, far away from the thrust bearing 13, of the moving block 121, the gasket 123 is located in the groove 1211, and the size of the gasket 123 is matched with that of the groove 1211;
a through hole 1212 is formed in one side, close to the thrust bearing 13, of the moving block 121, and the size of the bolt 122 is matched with that of the through hole 1212;
the groove 1211 is communicated with the through hole 1212, and the bolt 122 passes through the groove 1211, the gasket 123, the through hole 1212 and the inner side of the thrust bearing 13 in sequence and then is connected with the outer push rod 11.
In this embodiment, the bolt 122 and the washer 123 move the moving block 121 when the syringe pusher is retracted.
In addition, the grooves 1211 and the through holes 1212 are formed in the moving block 121, so that the syringe pusher can be conveniently detached, inspected or maintained by an inspector.
Optionally, a protrusion 111 is arranged on one side of the outer push rod 11 close to the thrust bearing 13, the size of the protrusion 111 is matched with that of the through hole 1212, the protrusion 111 penetrates through the thrust bearing 13 and the through hole 1212, and the length of the protrusion 111 parallel to the bolt 122 is greater than the sum of the lengths of the thrust bearing 13 and the through hole 1212 parallel to the bolt 122;
a mounting hole is formed in the boss 111, and the bolt 122 is threadedly coupled to the mounting hole through a gasket 123.
In the present embodiment, the connection between the outer push rod 11 and the moving block 121 and the thrust bearing 13 is realized by a bolt 122, the detachment by the inspector is convenient, and the relative independence between the outer push rod 11 and the moving block 121 is realized.
Specifically, the bolt 122 is in threaded connection with the protrusion 111, so that the bolt 122 is fixedly connected with the outer push rod 11; the length of the protrusion 111 parallel to the bolt 122 is greater than the sum of the lengths of the thrust bearing 13 and the through hole 1212 parallel to the bolt 122, so that the bolt 122 and the spacer 123 have a certain clearance from the moving block 121. When the outer push rod 11 moves forwards, the bolt 122 is not contacted with the gasket 123, and the moving block 121 and the outer push rod 11 rotate relatively; when the outer push rod 11 retracts, the bolt 122 and the gasket 123 contact and drive the moving block 121 to retract, and at the moment, the injector is not connected, and radial deformation cannot be generated.
Alternatively, the size of the side of the moving block 121 adjacent to the thrust bearing 13 is matched to the size of the second surface of the thrust bearing 13, and the size of the side of the outer push rod 11 adjacent to the thrust bearing 13 is matched to the size of the first surface of the thrust bearing 13.
In this embodiment, since the thrust bearing 13 serves as an axial support, uniform conductive stress is required. The size of the side of the moving block 121 close to the thrust bearing 13 is matched with the size of the second surface of the thrust bearing 13, and the size of the side of the outer push rod 11 close to the thrust bearing 13 is matched with the size of the first surface of the thrust bearing 13, so that the stress distribution is uniform, and the damage of the thrust bearing 13 is reduced.
Optionally, a handle 112 is provided at an end of the outer push rod 11 away from the thrust bearing 13, and the handle 112 is provided with a hollow structure.
In this embodiment, the handle 112 is hollow, so that the stress applied by the operator during use can be reduced, and the syringe pusher can be used more easily.
Optionally, the syringe pusher further comprises a syringe housing 14 and an inner ram 15, wherein:
the first end of the injector shell 14 is connected with the shell 10, and the accommodating cavity 101 is communicated with the inner side of the injector shell 14;
the first end of the inner push rod 15 is located inside the accommodating cavity 101, and the first end of the inner push rod 15 is abutted against one side of the propelling block 12, which is far away from the thrust bearing 13;
the second end of the inner ram 15 is located inside the syringe housing 14.
In this embodiment, the syringe housing 14 and the outer case 10 are fixed, and the push block 12 is brought into contact with the inner rod 15 to push the inner rod 15 forward, thereby discharging the substance in the syringe housing 14.
Optionally, a fixing plate 141 is disposed at an outer side of the first end of the syringe housing 14, a rotary bayonet 102 adapted to the fixing plate 141 is disposed at the second end of the casing 10, and the syringe housing 14 and the second end of the casing 10 are fixed by the fixing plate 141 and the rotary bayonet 102 in a snap-fit manner.
In this embodiment, the fixing plate 141 and the rotary bayonet 102 are engaged to realize multiple uses of the syringe pusher, and only the corresponding syringe housing 14 and the inner push rod 15 need to be replaced, and the syringe pusher does not need to be replaced. Thus, the service life of the injector propeller can be prolonged.
Optionally, a stabilizing layer 151 is disposed at a first end of the inner push rod 15, and the stabilizing layer 151 abuts against a side of the thrust block 12 away from the thrust bearing 13; the size of the stabilizing layer 151 matches with the size of the inner wall of the accommodating cavity 101.
In the present embodiment, the stable movement of the inner push rod 15 is realized by the stabilizer 151, and the service life of the inner push rod 15 is improved.
In particular, during use, the stabilizing layer 151 contacts the thrust block 12 and can move relative to the inner wall of the housing chamber 101 while maintaining an optimal clearance. Therefore, the inner push rod 15 and the outer push rod 11 can keep the same axis, the radial stress of the inner push rod 15 is minimum, and the damage of the inner push rod 15 caused by the radial stress generated by shaking is reduced.
Optionally, a visual hole is formed in a side surface of the housing 10, and the visual hole is communicated with the accommodating cavity 101.
In the embodiment, the positions of the inner propelling block 12 and the thrust bearing 13 can be observed by an operator through the visual hole, so that the operator can conveniently check and use the device.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The embodiments of the present invention have been described with reference to the accompanying drawings, but the present invention is not limited to the above-mentioned embodiments, which are only illustrative and not restrictive, and those skilled in the art can make many forms without departing from the spirit and scope of the present invention.
Claims (9)
1. A syringe pusher, comprising: shell, outer push rod, propulsion piece and thrust bearing, wherein:
the shell is provided with an accommodating cavity, two ends of the accommodating cavity are communicated with the shell, a first end of the accommodating cavity is provided with an internal thread, the side surface of the outer push rod is provided with an external thread matched with the internal thread, and the shell is connected with the outer push rod through the thread;
the thrust bearing with the propulsion piece is located the holding intracavity, just the thrust bearing is located the propulsion piece with between the outer push rod, the propulsion piece with the second surface of thrust bearing is connected, outer push rod with the first surface of thrust bearing is connected, the first surface and the second surface perpendicular to of thrust bearing the axis, the first surface and the second surface of thrust bearing back to back.
2. The syringe pusher of claim 1, wherein the pusher block comprises a moving block, a bolt, and a washer, wherein:
the moving block abuts against a second surface of the thrust bearing;
a groove is formed in one side, far away from the thrust bearing, of the moving block, the gasket is located in the groove, and the size of the gasket is matched with that of the groove;
a through hole is formed in one side, close to the thrust bearing, of the moving block, and the size of the bolt is matched with that of the through hole;
the groove is communicated with the through hole, and the bolt sequentially penetrates through the groove, the gasket, the through hole and the inner side of the thrust bearing and then is connected with the outer push rod.
3. The syringe pusher of claim 2, wherein the outer plunger has a protrusion on a side thereof adjacent to the thrust bearing, the protrusion having a size matching the size of the through hole, the protrusion passing through the thrust bearing and the through hole, the protrusion having a length parallel to the bolt greater than the sum of the lengths of the thrust bearing and the through hole parallel to the bolt;
the bulge is internally provided with a mounting hole, and the bolt is in threaded connection with the mounting hole through the gasket.
4. The syringe pusher of claim 3, wherein the side of the moving mass adjacent the thrust bearing is sized to match the size of the second surface of the thrust bearing and the side of the outer pushrod adjacent the thrust bearing is sized to match the size of the first surface of the thrust bearing.
5. The syringe pusher of claim 1, wherein an end of the outer pushrod remote from the thrust bearing is provided with a handle, and the handle is provided with a hollow structure.
6. The syringe pusher of claim 1, further comprising a syringe housing and an inner ram, wherein:
the first end of the syringe shell is connected with the shell, and the accommodating cavity is communicated with the inner side of the syringe shell;
the first end of the inner push rod is positioned in the accommodating cavity, and the first end of the inner push rod is abutted against one side of the propelling block, which is far away from the thrust bearing;
the second end of the inner ram is located inside the syringe housing.
7. The syringe pusher according to claim 6, wherein a fixing plate is provided at an outer side of the first end of the syringe housing, a rotating bayonet matched with the fixing plate is provided at the second end of the casing, and the syringe housing and the second end of the casing are clamped and fixed by the fixing plate and the rotating bayonet.
8. The syringe pusher of claim 7, wherein the first end of the inner ram is provided with a stabilizing layer that abuts a side of the pusher block distal from the thrust bearing; the size of the stabilizing layer is matched with the size of the inner wall of the accommodating cavity.
9. The syringe pusher of claim 1, wherein the housing defines a viewing aperture in a side thereof, the viewing aperture communicating with the receiving cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120925580.0U CN214907964U (en) | 2021-04-30 | 2021-04-30 | Syringe propeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120925580.0U CN214907964U (en) | 2021-04-30 | 2021-04-30 | Syringe propeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214907964U true CN214907964U (en) | 2021-11-30 |
Family
ID=79065610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120925580.0U Active CN214907964U (en) | 2021-04-30 | 2021-04-30 | Syringe propeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214907964U (en) |
-
2021
- 2021-04-30 CN CN202120925580.0U patent/CN214907964U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN214907964U (en) | Syringe propeller | |
| CN209868429U (en) | Nut force limiting tool | |
| CN115252094A (en) | Syringe propeller | |
| US20190199070A1 (en) | Spark plug production method, spark plug production device and assembly inspection method | |
| CN112716558B (en) | Clamping device and surgical operation instrument | |
| US20230138801A1 (en) | Systems And Methods For Inserting And Removing Bushing Assemblies | |
| CN117060285B (en) | Peeling device for cable connection | |
| US20220063071A1 (en) | Systems and methods for inserting and removing bushing assemblies | |
| CN109462122B (en) | Disassembling tool for intensive push-in type radio frequency coaxial connector | |
| CN211851724U (en) | Piston return device of bridge plug setting tool for test | |
| CN210791083U (en) | Built-in movable cutter for rotary electric shaver | |
| CN113442090A (en) | Automatic press-fitting device for crankshaft oil seal | |
| CN208435712U (en) | A kind of saw blade clamp system of Medical vertical saw | |
| CN116067759B (en) | Pulling pen and welding strength testing method | |
| CN112234743A (en) | Brush holding device of small motor | |
| JP2840202B2 (en) | Mounting method and packing jig for plunger packing | |
| CN221057799U (en) | Carbon brush assembly easy to replace | |
| CN213148777U (en) | In-situ electrochemical reaction device for free electron laser X-ray spectroscopy | |
| CN218247273U (en) | Surgical instrument and interface mechanism | |
| CN215739337U (en) | Ultrasonic puncture device | |
| CN214074558U (en) | Needle cylinder auxiliary fitting | |
| CN211512933U (en) | Injection pump | |
| CN215228237U (en) | Electric puncture device | |
| CN219142939U (en) | Head-replaceable current probe | |
| CN214472476U (en) | Solder resist ink hardness detection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240104 Address after: Building 29, No. 27 Jinxing Road, Jinfeng Town, Zhangjiagang City, Suzhou City, Jiangsu Province Patentee after: Jiangsu Lejia Biotechnology Co.,Ltd. Address before: Chinese Taiwan New Taipei City Patentee before: Zhang Renxian |