CN210644749U - Auxiliary injection device for cardiovascular radiography - Google Patents
Auxiliary injection device for cardiovascular radiography Download PDFInfo
- Publication number
- CN210644749U CN210644749U CN201920826573.8U CN201920826573U CN210644749U CN 210644749 U CN210644749 U CN 210644749U CN 201920826573 U CN201920826573 U CN 201920826573U CN 210644749 U CN210644749 U CN 210644749U
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- injection device
- auxiliary
- piston rod
- ball nut
- nut seat
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- Apparatus For Radiation Diagnosis (AREA)
Abstract
The utility model discloses a supplementary injection device of cardiovascular radiography, include: the auxiliary injection device comprises an auxiliary injection device body, a piston rod and a driving motor, wherein the front end of the auxiliary injection device body is connected with a contrast agent injection tube in an embedded mode, and the piston rod is embedded into the contrast agent injection tube in a sliding mode. The utility model discloses in, through driving drive gear and rotating being equipped with driving motor, drive gear drives ball nut seat through the connection dogtooth in the ball nut seat outside and rotates, rethread ball nut seat drives the piston rod and removes, finally realize pushing the piston through its top of piston rod cooperation and push the inboard contrast medium of contrast medium injection syringe, it pushes to drive through driving motor cooperation drive gear, make when pushing inject more even, the effect that the radiography detected is improved, realize full-automatic pushing simultaneously, do not need medical staff to operate, more convenient and fast during the injection, strengthen its practicality.
Description
Technical Field
The utility model relates to a cardiovascular radiography technical field especially relates to an auxiliary injection device of cardiovascular radiography.
Background
The angiocardiography is to inject the contrast agent into heart cavity or blood vessel quickly through cardiac catheter to make the heart and blood vessel cavity develop under X-ray radiation, and at the same time, there are methods of quick photography, TV photography or video tape etc. to photograph the development process of heart and blood vessel cavity, and the blood flowing sequence containing contrast agent and the filling condition of heart blood vessel can be seen from the development result, thus the change of physiology and anatomy of heart and blood vessel can be understood, it is a valuable method for diagnosing heart angiopathy
The auxiliary injection device for the angiocardiography is a device for assisting injection of a contrast medium for the angiocardiography, the contrast medium injector used clinically at present is similar to a common injector, the structure of the auxiliary injection device comprises an injection needle and an injection tube fixedly connected with the injection needle, a piston is arranged in the injection tube and connected with a push rod, a disc-shaped hand-push part is arranged at the end part of the push rod, the injection of the contrast medium is carried out by pushing a piston rod in a handheld mode, the injection mode is inconvenient to operate, the uniformity is poor during injection, the contrast detection effect is influenced, and the usability is poor.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing a cardiovascular radiography auxiliary injection device.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a cardiovascular contrast assisted bolus device comprising: the auxiliary injection device comprises an auxiliary injection device body, a piston rod and a drive motor;
the front end of the auxiliary injection device body is connected with a contrast agent injection tube in an embedded manner;
the injection device comprises a piston rod, a ball nut seat, a shell, a push-in piston, a connecting screw, a connecting convex tooth, a push-out piston;
the driving motor is spirally fixed on the inner side of the auxiliary injection device body and is rotatably connected with a driving gear through a rotating connecting shaft, wherein the driving gear is meshed with the ball nut seat through a connecting convex tooth on the ball nut seat.
As a further description of the above technical solution:
the handle is integrally connected to the bottom of the auxiliary injection device body, a control switch is arranged on the handle, an anti-skidding sheath is sleeved on the surface of the handle, and a storage battery is further arranged on the inner side of the handle.
As a further description of the above technical solution:
the storage battery is connected with the driving motor through a connecting wire, and the output end of the control switch is electrically connected with the input end of the driving motor.
As a further description of the above technical solution:
the other end of the driving gear is connected with a rotating limiting shaft, and the other end of the rotating limiting shaft is rotatably connected with the inner wall of the auxiliary injection device body through a rotating bearing seat.
As a further description of the above technical solution:
the device also comprises a limit gear;
the limiting gear is rotatably connected to the inner side of the auxiliary injection device body through a rotating limiting rod and is positioned above the driving gear;
the limiting gear is in meshed connection with the ball nut seat through a connecting convex tooth on the ball nut seat.
As a further description of the above technical solution:
the limiting gear and the driving gear are symmetrical with each other relative to the piston rod, and the diameters of the limiting gear and the driving gear are equal.
Advantageous effects
The utility model provides an auxiliary injection device for cardiovascular radiography. The method has the following beneficial effects:
(1): this supplementary injection device of cardiovascular radiography rotates through being equipped with driving motor drive gear, drive gear drives ball nut seat through the connection dogtooth in the ball nut seat outside and rotates, rethread ball nut seat drives the piston rod and removes, finally realize pushing the piston through its top of piston rod cooperation and pushing the inboard contrast medium of contrast medium injection syringe, drive through driving motor cooperation drive gear and push, make and inject more even when pushing, the effect that the radiography detected has been improved, realize full-automatic pushing simultaneously, do not need medical staff to operate, more convenient and fast during the injection, strengthen its practicality.
(2): this auxiliary injection device of cardiovascular radiography is through being equipped with limit gear, limit gear corresponds with drive gear about the piston rod each other, and limit gear also is connected with the meshing of the ball nut seat on the piston rod, when drive gear drives ball nut seat and rotates, can produce some lateral force for ball nut seat, can offset it through limit gear, thereby make ball nut seat drive more steady when piston rod removes, strengthen this auxiliary injection device during operation's of cardiovascular radiography stability, guarantee that the syringe needle of injection can not appear vibrating, alleviate patient's discomfort.
Drawings
Fig. 1 is a schematic view of the overall structure of an auxiliary injection device for cardiovascular radiography according to the present invention;
fig. 2 is a schematic structural view of the piston rod of the present invention;
FIG. 3 is a schematic structural view of the inside of the handle of the present invention;
fig. 4 is a schematic structural view of the middle limit gear of the present invention.
Illustration of the drawings:
1. an auxiliary injection device body; 2. a handle; 21. a storage battery; 3. an anti-slip sheath; 4. a control switch; 5. a contrast media syringe; 6. a piston rod; 61. pushing a piston; 62. connecting threads; 63. a ball nut seat; 64. connecting convex teeth; 7. a limit gear; 71. rotating the limiting rod; 8. a drive motor; 9. rotating the connecting shaft; 10. a drive gear; 11. the limiting shaft is rotated.
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 only some embodiments of the present invention, not all embodiments.
Referring to fig. 1, 2 and 3, a cardiovascular contrast assisted bolus device comprising: the auxiliary injection device comprises an auxiliary injection device body 1, a piston rod 6 and a drive motor 8;
the front end of the auxiliary injection device body 1 is embedded and connected with a contrast agent injection tube 5;
the piston rod 6 is embedded in the contrast medium injection tube 5 in a sliding manner, one end, located on the inner side of the contrast medium injection tube 5, of the piston rod 6 is connected with a push injection piston 61, a connecting thread 62 is formed in the piston rod 6, a ball nut seat 63 is further spirally sleeved on the piston rod 6, and a connecting convex tooth 64 is welded on a shell on the outer side of the ball nut seat 63 in an annular equal-angle manner;
the driving motor 8 is screwed inside the auxiliary pushing device body 1, and the driving motor 8 is rotatably connected with a driving gear 10 by rotating a connecting shaft 9, wherein the driving gear 10 is meshed with the ball nut seat 63 by a connecting convex tooth 64 on the ball nut seat 63.
The battery 21 is connected with the driving motor 8 through a connecting wire, the output end of the control switch 4 is electrically connected with the input end of the driving motor 8, the battery 21 can provide a working principle for the driving motor 8, and the control switch 4 can be used for adjusting and controlling the driving motor 8.
The other end of the driving gear 10 is connected with a rotation limiting shaft 11, and the other end of the rotation limiting shaft 11 is rotatably connected with the inner wall of the auxiliary injection device body 1 through a rotation bearing seat.
The working principle is as follows: when this supplementary injection device of cardiovascular radiography uses, driving motor 8 drives drive gear 10 through rotating connecting axle 9 and rotates, drive gear 10 drives ball nut seat 63 through the connection dogtooth 64 in the ball nut seat 63 outside and rotates, rethread ball nut seat 63 drives piston rod 6 and carries out horizontal migration, piston rod 6 cooperates the injecting piston 61 on its top to inject the contrast medium of 5 inboards of contrast medium injection syringe, drive through driving motor 8 cooperation drive gear 10 and inject, make more even when injecting, the effect that the contrast detected has been improved.
Referring to fig. 1 and 4, the device further comprises a limit gear 7;
the limiting gear 7 is rotatably connected to the inner side of the auxiliary pushing and injecting device body 1 through a rotating limiting rod 71 and is positioned above the driving gear 10;
the limit gear 7 is in meshed connection with the ball nut seat 63 through a connecting convex tooth 64 on the ball nut seat 63.
The limit gear 7 and the drive gear 10 are symmetrical to each other about the piston rod 6, and the diameters of the limit gear 7 and the drive gear 10 are equal.
When drive gear 10 drives ball nut seat 63 and rotates, can produce the effort of some laterals for ball nut seat 63, can offset the lateral force that receives on ball nut seat 63 through stop gear 7, thereby make ball nut seat 63 drive piston rod 6 more steady when removing, strengthen the stability of this supplementary injection device during operation of angiocardiography, guarantee that the syringe needle of injection can not appear vibrating, alleviate patient's discomfort, the staff of being convenient for operates.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. A cardiovascular contrast assisted bolus device, comprising: the auxiliary injection device comprises an auxiliary injection device body (1), a piston rod (6) and a drive motor (8);
the front end of the auxiliary injection device body (1) is embedded and connected with a contrast agent injection tube (5);
the injection device is characterized in that the piston rod (6) is embedded into the contrast medium injection tube (5) in a sliding manner, one end, located on the inner side of the contrast medium injection tube (5), of the piston rod (6) is connected with an injection piston (61), a connecting thread (62) is formed in the piston rod (6), a ball nut seat (63) is further in threaded sleeve connection on the piston rod (6), and a connecting convex tooth (64) is welded on a shell on the outer side of the ball nut seat (63) in an annular equal-angle manner;
the driving motor (8) is fixed on the inner side of the auxiliary pushing and injecting device body (1) in a threaded mode, the driving motor (8) is connected with a driving gear (10) in a rotating mode through a rotating connecting shaft (9), and the driving gear (10) is connected with a ball nut seat (63) in a meshed mode through connecting convex teeth (64) on the ball nut seat (63).
2. The auxiliary injection device for cardiovascular angiography as defined in claim 1, further comprising a handle (2), wherein the handle (2) is integrally connected to the bottom of the auxiliary injection device body (1), the handle (2) is provided with a control switch (4), the surface of the handle (2) is sleeved with an anti-slip sheath (3), and the inner side of the handle (2) is further provided with a storage battery (21).
3. The auxiliary cardiovascular angiography injection device according to claim 2, wherein the battery (21) is connected to the driving motor (8) through a connecting wire, and the output terminal of the control switch (4) is electrically connected to the input terminal of the driving motor (8).
4. The auxiliary injection device for cardiovascular angiography as claimed in claim 1, wherein the other end of the driving gear (10) is connected with a rotation limiting shaft (11), and the other end of the rotation limiting shaft (11) is rotatably connected with the inner wall of the auxiliary injection device body (1) through a rotation bearing seat.
5. The auxiliary cardiovascular contrast injector of claim 1, further comprising a limit gear (7);
the limiting gear (7) is rotatably connected to the inner side of the auxiliary injection device body (1) through a rotating limiting rod (71) and is positioned above the driving gear (10);
the limiting gear (7) is in meshed connection with the ball nut seat (63) through a connecting convex tooth (64) on the ball nut seat (63).
6. An angiographic auxiliary bolus device according to claim 5, wherein the limit gear (7) and the drive gear (10) are symmetrical to each other about the piston rod (6) and the diameters of the limit gear (7) and the drive gear (10) are equal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920826573.8U CN210644749U (en) | 2019-06-03 | 2019-06-03 | Auxiliary injection device for cardiovascular radiography |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920826573.8U CN210644749U (en) | 2019-06-03 | 2019-06-03 | Auxiliary injection device for cardiovascular radiography |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210644749U true CN210644749U (en) | 2020-06-02 |
Family
ID=70823333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920826573.8U Expired - Fee Related CN210644749U (en) | 2019-06-03 | 2019-06-03 | Auxiliary injection device for cardiovascular radiography |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210644749U (en) |
-
2019
- 2019-06-03 CN CN201920826573.8U patent/CN210644749U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200602 Termination date: 20210603 |
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| CF01 | Termination of patent right due to non-payment of annual fee |