CN114469177A - Quick correction connecting structure for guide pipe - Google Patents
Quick correction connecting structure for guide pipe Download PDFInfo
- Publication number
- CN114469177A CN114469177A CN202210401060.9A CN202210401060A CN114469177A CN 114469177 A CN114469177 A CN 114469177A CN 202210401060 A CN202210401060 A CN 202210401060A CN 114469177 A CN114469177 A CN 114469177A
- Authority
- CN
- China
- Prior art keywords
- terminal
- joint
- connection structure
- catheter
- connecting seat
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- 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.)
- Pending
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/08—Detecting organic movements or changes, e.g. tumours, cysts, swellings
- A61B8/0891—Detecting organic movements or changes, e.g. tumours, cysts, swellings for diagnosis of blood vessels
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/12—Diagnosis using ultrasonic, sonic or infrasonic waves in body cavities or body tracts, e.g. by using catheters
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/10—Tube connectors; Tube couplings
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
- H01R13/631—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances for engagement only
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R2201/00—Connectors or connections adapted for particular applications
- H01R2201/12—Connectors or connections adapted for particular applications for medicine and surgery
Abstract
The invention discloses a quick correction connecting structure of a catheter, which comprises a first part and a second part separable from the first part, wherein the first part is provided with a first connecting hole; the first part comprises a first connecting seat and a first joint arranged on the first connecting seat; the second part comprises a second connecting seat and a second joint arranged on the second connecting seat; the first joint and the second joint can be inserted and installed; the end of the first joint is provided with a wedge-shaped surface, which comprises a first end far away from the second joint and a second end close to the second joint. By adopting the technical scheme, the quick correction and connection structure for the guide pipe can realize quick connection of the guide pipe, is simple in structure, convenient to operate, free of other auxiliary alignment equipment, low in cost and high in efficiency.
Description
Technical Field
The invention relates to a quick correction and connection structure for a catheter, and belongs to the technical field of medical instruments.
Background
Intravascular ultrasound (IVUS) refers to a medical imaging technique using a special catheter with an ultrasound probe attached to the end, combined with non-invasive ultrasound and invasive catheter techniques. The intravascular ultrasound is to place a miniaturized ultrasound transducer into a cardiovascular cavity through a cardiovascular catheter to display the cardiovascular cross-sectional shape and/or blood flow pattern, mainly comprising two aspects of ultrasound imaging technology and Doppler blood flow measurement, on the basis of angiography examination, a blood vessel and a lesion part to be examined are selected, taking a coronary artery as an example, a guide catheter is placed at a coronary artery port, a guide wire is sent to the far end of a target blood vessel, the intravascular ultrasound catheter is sent to the far end of the lesion part to be examined along the guide wire, generally, a method of continuously withdrawing from the far end to the near end of the target blood vessel at a certain speed is adopted for examination, and then the interested part is subjected to important examination again. When an ultrasonic conduit in an ultrasonic imaging system is installed, the end part of the conduit needs to be inserted into a controller transmission part, so that a conductor in the conduit is communicated with a conductor of a controller, the existing conduit insertion structure is complex, in order to enable a wiring terminal to be aligned when the conduit is inserted, the connection can be completed only by matching an electrical control system, the efficiency is low, and the cost is high.
Disclosure of Invention
Therefore, the invention aims to provide a quick correction and connection structure for a conduit, which can realize automatic alignment in the plugging process, so that connection is completed without matching of other auxiliary electrical control systems.
In order to achieve the above object, a catheter quick-calibration connection structure of the present invention includes a first part and a second part separable from the first part; the first part comprises a first connecting seat and a first joint arranged on the first connecting seat; the second part comprises a second connecting seat and a second connector arranged on the second connecting seat; the first joint and the second joint can be inserted and installed; the end part of the first joint is provided with a wedge surface, and the wedge surface comprises a first end far away from the second joint and a second end close to the second joint; the end part of the second joint is provided with a protruding part which can press the wedge-shaped surface when the first joint and the second joint are close to each other so as to enable the first joint and the second joint to relatively rotate until the protruding part is positioned at the first end; a near terminal is arranged on the first joint, a far terminal used for being in contact communication with the near terminal is arranged on the second joint, and the near terminal is opposite to the far terminal when the bulge is opposite to the first end; the proximal and distal terminals are for connection to a lead within a catheter or a lead of a controller, respectively.
The first joint comprises a barrel part positioned on the outer side and a core part positioned on the inner side, a wedge surface is arranged at the end part of the barrel part, and the proximal terminal is positioned on the core part.
A slot is provided on the first joint at a location at the first end into which the projection is insertable.
The number of the wedge-shaped surfaces is two, and the intersection line of the two wedge-shaped surfaces passes through the axis of the relative rotation of the first joint and the second joint.
The two bulges are oppositely arranged.
The projection includes an insert rod having a V-shaped tip.
The number of the near terminals is four, and the near terminals are respectively a first terminal, a second terminal, a third terminal and a fourth terminal; the plane where the intersection line and the axis are located is a symmetry plane, the first terminal and the fourth terminal are located on one side of the symmetry plane and have equal distances from the symmetry plane, the second terminal and the third terminal are located on the other side of the symmetry plane, the first terminal and the second terminal are symmetrical, and the third terminal and the fourth terminal are symmetrical; the first terminal is communicated with a third terminal, and the second terminal is communicated with a fourth terminal; the number of the distal terminals is at least two.
The number of the far terminals is four, the far terminals are respectively a fifth terminal, a sixth terminal, a seventh terminal and an eighth terminal, the fifth terminal, the sixth terminal, the seventh terminal and the eighth terminal are respectively arranged corresponding to the first terminal, the second terminal, the third terminal and the fourth terminal, the fifth terminal is communicated with the seventh terminal, and the sixth terminal is communicated with the eighth terminal.
And a bearing is arranged in the first connecting seat or the second connecting seat, and the first joint or the second joint is arranged on the bearing.
The second adapter includes a guide cylinder into which the first adapter can be inserted.
The bulge is arranged on the inner side wall of the guide cylinder.
By adopting the technical scheme, when the first connector and the second connector are inserted and installed, the protruding part of the second connector is contacted and extruded with the wedge-shaped surface of the first connector along with the mutual approaching of the first connector and the second connector, so that the first connector and the second connector rotate relatively to start to be aligned, when the protruding part moves relatively to the first end of the wedge-shaped surface, the protruding part and the first connector are aligned completely, the near terminal is opposite to the far terminal, the first connector and the second connector are continuously approached to each other, and the near terminal is contacted and communicated with the far terminal. The quick correction and connection structure for the guide pipe can realize quick connection of the guide pipe, is simple in structure, convenient to operate, free of other auxiliary alignment equipment, low in cost and high in efficiency.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a schematic perspective view of the first joint.
Fig. 3 is a side view of the first joint.
Fig. 4 is a schematic structural view of the plug cylinder mounted on the first connector.
Fig. 5 is a schematic perspective view of the second joint.
Fig. 6 is a side view of the second joint.
Fig. 7 is a schematic view of the construction in which the plug pin is mounted on the second connector.
Detailed Description
The invention is described in further detail below with reference to the figures and the detailed description.
As shown in FIG. 1, the quick aligning and connecting structure for conduit of the present invention comprises a first part and a second part separable from the first part.
The first part comprises a first connecting seat 3 and a first joint 1 arranged on the first connecting seat 3 through a bearing 4, wherein a near terminal used for being connected with a lead of a controller is arranged on the first joint 1. The second part comprises a second connecting seat 8 and a second connector 6 arranged on the second connecting seat 8, a far terminal used for being connected with a lead in a conduit 11 is arranged on the second connector 6, and when the first connector 1 and the second connector 6 are installed in an inserting mode, the near terminal and the far terminal can be in contact communication.
The first joint holder 3 is cylindrical, and the first joint 1 is inserted into one end of the first joint holder 3 and is mounted in the inner cavity 31 of the first joint holder 3 together with the bearing 4. An internal thread 32 is provided on an inner side wall of an end portion of the first connection seat 3, and a fixing ring 5 is screwed to the internal thread 32 to restrain the bearing 4 and the first joint 1 in the first connection seat 3. The wire of the controller can pass through the other end of the first connecting seat 3 and pass through a wire hole 103 formed in the first joint 1 to enter the first wiring cavity 104 on the first joint 1, a first jack 141 is arranged on one side of the first joint 1 far away from the wire hole, a metal plug-in cylinder 2 is arranged in the first jack 141, and the wire of the controller is connected to one end of the plug-in cylinder 2 so that the plug-in cylinder 2 forms the near terminal.
The second connecting holder 8 is also cylindrical, and the second joint 6 can be inserted into one end of the second connecting holder 8. An end cover 10 is fixed at the other end of the second connecting seat 8, a guide pipe 11 penetrates through the end cover 10 and then is fixed on a connecting flange 9, and the connecting flange 9 is fixed on the second joint 6. The wire in the conduit 11 passes through the connecting flange 9 and then enters the second wiring cavity 63 at the end of the second joint 6, a second insertion hole 631 is formed in one side of the second joint 6, which is far away from the second wiring cavity 63, a metal insertion pin 7 is arranged in the second insertion hole 631, and the wire in the conduit 11 is connected to one end of the insertion pin 7, so that the insertion pin 7 forms the remote terminal.
The second joint 6 further comprises a guide cylinder 64, the first joint 1 can be inserted into the guide cylinder 64, and when the first joint 1 and the second joint 6 are continuously close to each other, the guide cylinder 64 can guide the first joint 1 and the second joint.
The end of the first contact 1 remote from the wire guide is provided with a wedge-shaped surface 101, and the wedge-shaped surface 101 comprises a first end 101b remote from the second contact 6 and a second end 101a close to the second contact 6. The end of the second joint 6 is provided with a protrusion 61, and when the first joint 1 and the second joint 6 are close to each other, the protrusion 61 can press the wedge-shaped surface 101 so as to rotate the first joint 1 and the second joint 6 relatively until the protrusion 61 is located at the first end 101 b. The proximal terminal faces the distal terminal when the projection 61 faces the first end 101 b.
Preferably, the first contact 1 includes a cylindrical portion 1a located on the outer side and a core portion 1b located on the inner side, the tapered surface 101 is provided at an end portion of the cylindrical portion 1a, and the near terminal is located on the core portion 1 b. A slot 102 is provided on the first joint 1 at the first end 101b, and the projection 61 is insertable into the slot 102.
The number of the wedge-shaped faces 101 is two, and an intersection line 100 of the two wedge-shaped faces 101 passes through an axis of relative rotation of the first joint 1 and the second joint 6. Correspondingly, the protruding portions 61 may be provided in two opposite directions.
In the present embodiment, the projection 61 includes an insert rod which is provided on an inner side wall of the guide cylinder 64 and has a V-shaped tip 62.
The two wires of the controller are usually arranged, namely a first wire and a second wire, the two wires in the conduit 11 are correspondingly arranged, namely a third wire and a fourth wire, when the first connector 1 is connected with the second connector 6, the first wire is connected with the third wire, and the second wire is connected with the fourth wire. However, when the first connector 1 and the second connector 6 rotate relatively, the first path may be connected to the fourth path, and the second path may be connected to the third path, which may cause connection misalignment. In view of this, the near terminals are provided in four, respectively, as a first terminal 21, a second terminal 22, a third terminal 23, and a fourth terminal 24; the plane where the intersection line 100 and the axis are located is a symmetry plane, the first terminal 21 and the fourth terminal 24 are located on one side of the symmetry plane and have equal distances from the symmetry plane, the second terminal 22 and the third terminal 23 are located on the other side of the symmetry plane, the first terminal 21 is symmetrical to the second terminal 22, and the third terminal 23 is symmetrical to the fourth terminal 24; the first terminal 21 is communicated with a third terminal 23, and the second terminal 22 is communicated with a fourth terminal 24; the first path may be connected to the first terminal 21 and the third terminal 23, and the second path may be connected to the second terminal 22 and the fourth terminal 24.
In one embodiment, the number of the distal terminals is two. When the plugging is completed, one of the far terminals can face the first terminal 21 or the third terminal 23, and the other far terminal can face the second terminal 22 or the fourth terminal 24, so as to ensure that the connection dislocation condition does not occur all the time.
In another embodiment, the number of the far terminals is four, and the far terminals are a fifth terminal 71, a sixth terminal 72, a seventh terminal 73 and an eighth terminal 74, the fifth terminal 71, the sixth terminal 72, the seventh terminal 73 and the eighth terminal 74 are respectively arranged corresponding to the first terminal 21, the second terminal 22, the third terminal 23 and the fourth terminal 24, and the fifth terminal 71 is communicated with the seventh terminal 73, and the sixth terminal is communicated with the eighth terminal 74. The aforementioned "fifth terminal 71, sixth terminal 72, seventh terminal 73 and eighth terminal 74 are respectively disposed corresponding to the first terminal 21, second terminal 22, third terminal 23 and fourth terminal 24" means that the positions are correspondingly disposed, that is, when the fifth terminal 71 is in contact communication with the first terminal 21, the sixth terminal 72 is communicated with the second terminal 22, the seventh terminal 73 is communicated with the third terminal 23, and the eighth terminal 74 is communicated with the fourth terminal 24.
By adopting the technical scheme, according to the quick correction connection structure of the catheter 11, when the first connector 1 and the second connector 6 are inserted and installed, as the first connector 1 and the second connector 6 approach each other, the protrusion 61 of the second connector 6 contacts and presses the wedge-shaped surface 101 of the first connector 1, so that the first connector 1 and the second connector 6 rotate relatively to start to align, when the protrusion 61 moves relatively to the first end 101b of the wedge-shaped surface 101, the alignment between the protrusion 61 and the wedge-shaped surface is completed, at this time, the proximal terminal faces the distal terminal, the first connector 1 and the second connector 6 continue to approach each other, and then the proximal terminal contacts and communicates with the distal terminal. The quick correction and connection structure for the guide pipe 11 can realize quick connection of the guide pipe 11, is simple in structure, convenient to operate, free of other auxiliary alignment equipment, low in cost and high in efficiency.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (10)
1. A quick correction connection structure of a catheter is characterized in that: comprises a first part and a second part which is separable from the first part; the first part comprises a first connecting seat and a first joint arranged on the first connecting seat; the second part comprises a second connecting seat and a second connector arranged on the second connecting seat; the first joint and the second joint can be inserted and installed; the end part of the first joint is provided with a wedge surface, and the wedge surface comprises a first end far away from the second joint and a second end close to the second joint; the end part of the second joint is provided with a protruding part which can press the wedge-shaped surface when the first joint and the second joint are close to each other so as to enable the first joint and the second joint to relatively rotate until the protruding part is positioned at the first end; a near terminal is arranged on the first joint, a far terminal used for being in contact communication with the near terminal is arranged on the second joint, and the near terminal is opposite to the far terminal when the bulge is opposite to the first end; the proximal and distal terminals are for connection to a lead within a catheter or a lead of a controller, respectively.
2. The catheter quick-calibration connection structure of claim 1, wherein: the first joint comprises a barrel part positioned on the outer side and a core part positioned on the inner side, a wedge surface is arranged at the end part of the barrel part, and the proximal terminal is positioned on the core part.
3. The catheter quick-calibration connection structure of claim 1, wherein: a slot is provided on the first joint at a location at the first end into which the projection is insertable.
4. The catheter quick-calibration connection structure of claim 1, wherein: the number of the wedge-shaped surfaces is two, and the intersection line of the two wedge-shaped surfaces passes through the axis of the relative rotation of the first joint and the second joint.
5. The catheter quick-calibration connection structure of claim 4, wherein: the number of the near terminals is four, and the near terminals are respectively a first terminal, a second terminal, a third terminal and a fourth terminal; the plane where the intersection line and the axis are located is a symmetry plane, the first terminal and the fourth terminal are located on one side of the symmetry plane and have equal distances from the symmetry plane, the second terminal and the third terminal are located on the other side of the symmetry plane, the first terminal and the second terminal are symmetrical, and the third terminal and the fourth terminal are symmetrical; the first terminal is communicated with a third terminal, and the second terminal is communicated with a fourth terminal; the number of the remote terminals is at least two.
6. The catheter quick-calibration connection structure of claim 5, wherein: the number of the far terminals is four, the far terminals are respectively a fifth terminal, a sixth terminal, a seventh terminal and an eighth terminal, the fifth terminal, the sixth terminal, the seventh terminal and the eighth terminal are respectively arranged corresponding to the first terminal, the second terminal, the third terminal and the fourth terminal, the fifth terminal is communicated with the seventh terminal, and the sixth terminal is communicated with the eighth terminal.
7. The catheter quick-calibration connection structure of any one of claims 1 to 6, wherein: and a bearing is arranged in the first connecting seat or the second connecting seat, and the first joint or the second joint is arranged on the bearing.
8. The catheter quick calibration connection structure of any one of claims 1 to 6 wherein: the second adapter includes a guide cylinder into which the first adapter can be inserted.
9. The catheter quick-calibration connection structure of claim 8, wherein: the bulge is arranged on the inner side wall of the guide cylinder.
10. The catheter quick calibration connection structure of any one of claims 1 to 6 wherein: the projection includes an insert rod having a V-shaped tip.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210401060.9A CN114469177A (en) | 2022-04-18 | 2022-04-18 | Quick correction connecting structure for guide pipe |
| CN202221930692.6U CN218500737U (en) | 2022-04-18 | 2022-07-22 | Quick correction connecting structure for guide pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210401060.9A CN114469177A (en) | 2022-04-18 | 2022-04-18 | Quick correction connecting structure for guide pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114469177A true CN114469177A (en) | 2022-05-13 |
Family
ID=81489578
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210401060.9A Pending CN114469177A (en) | 2022-04-18 | 2022-04-18 | Quick correction connecting structure for guide pipe |
| CN202221930692.6U Active CN218500737U (en) | 2022-04-18 | 2022-07-22 | Quick correction connecting structure for guide pipe |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221930692.6U Active CN218500737U (en) | 2022-04-18 | 2022-07-22 | Quick correction connecting structure for guide pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN114469177A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013133356A1 (en) * | 2012-03-09 | 2013-09-12 | テルモ株式会社 | Catheter |
| CN104840221A (en) * | 2015-06-04 | 2015-08-19 | 上海爱声生物医疗科技有限公司 | Self-correcting connection structure for realizing fast connection of transmission shafts and signal lines on transmission shafts |
| CN204696352U (en) * | 2015-04-24 | 2015-10-07 | 珠海格力电器股份有限公司 | Terminal connecting structure and electric fan |
| CN108718014A (en) * | 2018-05-21 | 2018-10-30 | 华南师范大学 | A kind of quick plug-in photoelectric coupling connector for the intravascular imaging system of photoacoustic ultrasound |
| CN108742709A (en) * | 2017-03-22 | 2018-11-06 | 泰尔茂株式会社 | Image diagnosing system |
| CN209762515U (en) * | 2018-12-26 | 2019-12-10 | 河南共进教育科技有限公司 | Quick joint for catheter of intestinal therapy machine |
| CN211958035U (en) * | 2020-04-15 | 2020-11-17 | 北京骑胜科技有限公司 | Connector, battery pack and battery charging device |
| CN212547150U (en) * | 2019-12-31 | 2021-02-19 | 杭州堃博生物科技有限公司 | Fixing base, detection mechanism, radio frequency ablation catheter and radio frequency ablation system |
| CN113017780A (en) * | 2021-03-02 | 2021-06-25 | 哈尔滨医科大学 | Catheter system integrating ultrasonic imaging and rotational atherectomy of plaque in cavity |
| CN216289297U (en) * | 2021-11-16 | 2022-04-12 | 青岛迈达电力工程有限公司 | High-safety quick plug |
-
2022
- 2022-04-18 CN CN202210401060.9A patent/CN114469177A/en active Pending
- 2022-07-22 CN CN202221930692.6U patent/CN218500737U/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013133356A1 (en) * | 2012-03-09 | 2013-09-12 | テルモ株式会社 | Catheter |
| CN204696352U (en) * | 2015-04-24 | 2015-10-07 | 珠海格力电器股份有限公司 | Terminal connecting structure and electric fan |
| CN104840221A (en) * | 2015-06-04 | 2015-08-19 | 上海爱声生物医疗科技有限公司 | Self-correcting connection structure for realizing fast connection of transmission shafts and signal lines on transmission shafts |
| CN108742709A (en) * | 2017-03-22 | 2018-11-06 | 泰尔茂株式会社 | Image diagnosing system |
| CN108718014A (en) * | 2018-05-21 | 2018-10-30 | 华南师范大学 | A kind of quick plug-in photoelectric coupling connector for the intravascular imaging system of photoacoustic ultrasound |
| CN209762515U (en) * | 2018-12-26 | 2019-12-10 | 河南共进教育科技有限公司 | Quick joint for catheter of intestinal therapy machine |
| CN212547150U (en) * | 2019-12-31 | 2021-02-19 | 杭州堃博生物科技有限公司 | Fixing base, detection mechanism, radio frequency ablation catheter and radio frequency ablation system |
| CN211958035U (en) * | 2020-04-15 | 2020-11-17 | 北京骑胜科技有限公司 | Connector, battery pack and battery charging device |
| CN113017780A (en) * | 2021-03-02 | 2021-06-25 | 哈尔滨医科大学 | Catheter system integrating ultrasonic imaging and rotational atherectomy of plaque in cavity |
| CN216289297U (en) * | 2021-11-16 | 2022-04-12 | 青岛迈达电力工程有限公司 | High-safety quick plug |
Also Published As
| Publication number | Publication date |
|---|---|
| CN218500737U (en) | 2023-02-21 |
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Application publication date: 20220513 |
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