CN106823070B

CN106823070B - Syringe identification device, high-pressure injector and control method thereof

Info

Publication number: CN106823070B
Application number: CN201710173478.8A
Authority: CN
Inventors: 王五星; 李国辉
Original assignee: Shenzhen Antmed Co ltd
Current assignee: Guangdong Ante Medical Co ltd
Priority date: 2017-03-21
Filing date: 2017-03-21
Publication date: 2023-03-07
Anticipated expiration: 2037-03-21
Also published as: CN106823070A

Abstract

The invention discloses a syringe identification device, a high-pressure injector using the syringe identification device and a control method thereof, wherein the syringe identification device comprises: a handpiece panel; the optical sensor is fixedly arranged on the handpiece panel and comprises a light emitting end and a light receiving end, and the light emitting end and the light receiving end are arranged oppositely; the moving part is arranged on the handpiece panel and is close to the optical sensor, the needle cylinder of the high-pressure injector is rotatably arranged on the handpiece panel, the edge of the needle cylinder pushes or avoids the moving part, so that the moving part blocks or yields the light emitted by the light emitting end to the light receiving end. The technical scheme of the invention can identify whether the needle cylinder of the high-pressure injector is assembled or not, so that the high-pressure injector is simpler and more convenient to use.

Description

Syringe identification device, high-pressure injector and control method thereof

Technical Field

The invention relates to the technical field of medical instruments, in particular to a syringe identification device, a high-pressure injector using the syringe identification device and a control method of the high-pressure injector.

Background

High-pressure syringes are increasingly emerging as aids in medical imaging systems, with the development of X-ray machines, rapid changers, image intensifiers, and artificial contrast agents. Today, high pressure injectors are widely used in various angiographic examinations, CT-enhanced contrast scans and MR-enhanced scans.

However, in the process of assembling the syringe to the handpiece panel of the existing high-pressure injector, whether the syringe is assembled or not needs to be checked by an operator and cannot be automatically identified by a system, so that the condition of missing detection is easy to occur, and the high-pressure injector is inconvenient to use.

Disclosure of Invention

The invention mainly aims to provide a syringe identification device, which aims to identify whether a syringe of a high-pressure injector is assembled or not, so that the high-pressure injector is simpler and more convenient to use.

In order to achieve the above object, the present invention provides a syringe identification device for a high pressure injector, comprising:

a handpiece panel;

the optical sensor is fixedly arranged on the handpiece panel and comprises a light emitting end and a light receiving end, and the light emitting end and the light receiving end are arranged oppositely;

the moving part is arranged on the handpiece panel and is close to the optical sensor, a needle cylinder of the high-pressure injector is rotatably arranged on the handpiece panel, the edge of the needle cylinder pushes or avoids the moving part, so that the moving part blocks or abdicates the light emitted by the light emitting end to the light receiving end.

Optionally, the needle cylinder recognition device includes at least two optical sensor and at least two the moving part, one the moving part blocks or lets one optical sensor's light, the needle cylinder has rotation initial position and rotation stop position, the needle cylinder in promote two when rotating stop position the moving part, make one the moving part blocks one optical sensor's light.

Optionally, the movable member comprises:

a carrier plate;

the rotating shaft is fixedly arranged at one end of the carrier plate and is rotationally connected with the handpiece panel;

the baffle, the baffle sets firmly in the carrier plate is kept away from the one end of axis of rotation, the baffle winds the axis of rotation rotates, blocks or lets the position light of light sensor.

Optionally, the movable member further comprises:

one end of the elastic piece is fixedly arranged on the handpiece panel, and the other end of the elastic piece is elastically abutted against the carrier plate; and

and one end of the needle cylinder abutting piece is fixedly arranged on one side of the carrier plate, which deviates from the elastic piece, and the other end of the needle cylinder abutting piece extends towards the direction, which deviates from the carrier plate.

Optionally, an assembly groove is formed in one surface of the handpiece panel, and the moving member and the optical sensor are assembled in the assembly groove.

Optionally, the head panel is further provided with a through hole penetrating through two surfaces of the head panel, a through hole communicating with the assembling groove is formed in a side wall of the through hole, the needle cylinder abutting piece is partially accommodated in the through hole, and one end of the needle cylinder abutting piece, which is far away from the carrier plate, is exposed out of the through hole.

Optionally, the movable member further includes a sealing ring, and the sealing ring is sleeved on the needle cylinder abutting member and blocks the through hole.

The invention also provides a high-pressure injector, which comprises a syringe identification device, wherein the syringe identification device comprises:

a handpiece panel;

the moving part is arranged on the handpiece panel and is close to the optical sensor, the needle cylinder of the high-pressure injector is rotatably arranged on the handpiece panel, the edge of the needle cylinder pushes or avoids the moving part, so that the moving part blocks or yields the light emitted by the light emitting end to the light receiving end.

The invention also provides a control method of the high-pressure injector, which comprises the following steps:

the system judges the state of the optical sensor;

and when the system judges that the state of the optical sensor is blocked, the push rod is controlled to move forwards to exhaust.

Optionally, the high pressure injector comprises at least two light sensors, and the control method of the high pressure injector comprises the steps of:

the system judges the states of the two optical sensors;

and when the system judges that the states of the two optical sensors are both blocked, the push rod is controlled to move forward to exhaust.

According to the technical scheme, the optical sensor and the moving part are arranged on the handpiece panel, the light emitting end of the optical sensor emits light to the light receiving end, the moving part is avoided after the moving part is pushed and removed during assembly of the needle cylinder of the high-pressure injector, the moving part can block or avoid the light emitted from the light emitting end to the light receiving end, the optical sensor can generate signals that the needle cylinder is assembled or not (namely, signals that the needle cylinder is not assembled are generated), and the function of identifying the needle cylinder is further realized. Namely, whether the needle cylinder of the high-pressure injector is assembled or not can be identified, the step of manual inspection is avoided, so that the complex operation in the using process of the high-pressure injector can be reduced, the working time is shortened, the working efficiency is improved, and the high-pressure injector is simpler and more convenient to use.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, 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 the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic view of a syringe identification device according to an embodiment of the present invention;

FIG. 2 is an exploded view of the needle cartridge identification device of FIG. 1;

FIG. 3 is a schematic view of the moving part and the corresponding optical sensor shown in FIG. 2;

FIG. 4 is a schematic structural view of the assembly structure of the movable member, the optical sensor and the handpiece panel shown in FIG. 2, which is partially cut away;

FIG. 5 is an enlarged view of the structure at V in FIG. 4;

FIG. 6 is a schematic view of the structure of FIG. 4 from another perspective;

FIG. 7 is an enlarged schematic view of region VII in FIG. 6.

The reference numbers indicate:

reference numerals	Name(s)	Reference numerals	Name (R)
				100	Syringe identification device	54	Elastic piece
10	Handpiece panel	55	Needle cylinder supporting piece
				11	Assembly groove	56	Shaft pressing block
13	Run-through port	561	First shaft hole
				15	Through-hole	57	Sealing ring
30	Optical sensor	571	Base body
				31	Light emitting terminal	572	Barrel body
33	Light receiving end	58	Pressing plate
				50	Movable part	581	Via holes
51	Carrier plate	70	Aircraft nose apron
				511	Positioning column	71	Let a mouthful
52	Rotating shaft	73	Annular limiting rib
				53	Baffle plate

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that all directional indicators (such as up, down, left, right, front, and back \8230;) in the embodiments of the present invention are only used to explain the relative positional relationship between the components, the motion situation, etc. in a specific posture (as shown in the attached drawings), and if the specific posture is changed, the directional indicators are changed accordingly.

In addition, descriptions such as "first", "second", etc. in the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly specified otherwise.

In the present invention, unless otherwise explicitly stated or limited, the terms "connected", "fixed", and the like are to be understood broadly, for example, "fixed" may be fixedly connected, may be detachably connected, or may be integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The present invention provides a syringe identification apparatus 100, which is mainly applied to a high-pressure injector to automatically identify whether a syringe is installed.

As shown in fig. 1 to 7, the specific structure of the syringe identification apparatus 100 will be described, and in an embodiment of the syringe identification apparatus 100 according to the present invention, the syringe identification apparatus 100 includes:

a head panel 10;

the optical sensor 30, the optical sensor 30 is fixedly arranged on the handpiece panel 10, the optical sensor 30 comprises a light emitting end 31 and a light receiving end 33, and the light emitting end 31 is arranged opposite to the light receiving end 33;

the moving element 50 is arranged on the handpiece panel 10 and is close to the optical sensor 30, the needle cylinder of the high-pressure injector is rotatably arranged on the handpiece panel 10, the edge of the needle cylinder pushes or avoids the moving element 50, so that the moving element 50 blocks or conceals the light emitted by the light emitting end 31 to the light receiving end 33.

In this embodiment, as shown in fig. 3 and 5, the movable member 50 includes:

a carrier plate 51;

the rotating shaft 52 is fixedly arranged at one end of the carrier plate 51 and is rotatably connected with the handpiece panel 10;

the baffle 53 is fixedly arranged at one end, far away from the rotating shaft 52, of the carrier plate 51, and the baffle 53 rotates around the rotating shaft 52 to block or give way the light of the optical sensor 30.

Specifically, the carrier plate 51 is in a long strip shape, a rotating shaft 52 and a baffle 53 are respectively fixed at two ends of the carrier plate 51, the rotating shaft 52 is rotatably connected with the handpiece panel 10, so that the carrier plate 51 and the baffle 53 can rotate around the axis of the rotating shaft 52, and the baffle 53 can displace:

when the baffle 53 moves to a position between the light emitting end 31 and the light receiving end 33 of the optical sensor 30, the baffle 53 can block the light emitted from the light emitting end 31 to the light receiving end 33, so that the optical sensor 30 generates a signal that the syringe is assembled;

when the shutter 53 is not moved between the light emitting end 31 and the light receiving end 33 of the light sensor 30, the shutter 53 can give way for the light emitted from the light emitting end 31 to the light receiving end 33, so that the light sensor 30 does not generate a signal (i.e., a signal that the syringe is not assembled is generated).

It can be understood that the structure is simple and effective, not only can improve the production, manufacture and installation efficiency, but also can reduce the resource investment and consumption, and simultaneously is safe, durable and convenient to replace.

Further, the movable member 50 further includes:

one end of the elastic element 54 is fixedly arranged on the handpiece panel 10, and the other end of the elastic element 54 elastically abuts against the carrier plate 51; and

and one end of the syringe abutting piece 55 is fixedly arranged on one side of the carrier plate 51 departing from the elastic piece 54, and the other end of the syringe abutting piece 55 extends towards the direction departing from the carrier plate 51.

Specifically, the elastic element 54 is a spring, one end of which is fixed to the handpiece panel 10, and the other end of which is fixed to the carrier plate 51, and in order to facilitate the installation and replacement of the elastic element 54, a positioning column 511 is further disposed on a side surface of the carrier plate 51 facing the elastic element 54, and one end of the elastic element 54 away from the handpiece panel 10 is sleeved on the positioning column 511, and elastically abuts against the carrier plate 51 through the positioning column 511. Meanwhile, a syringe abutting piece 55 is fixedly arranged on the surface of the carrier plate 51 departing from the positioning column 511, and the syringe abutting piece 55 extends along the direction away from the carrier plate 51. At this time, the end of the syringe retaining member 55 away from the carrier plate 51 may be retained against the syringe of the high-pressure injector or be in a free state, that is:

when the syringe of the high-pressure injector is mounted on the handpiece panel 10, the syringe lug abuts against and presses the syringe abutting piece 55 through one end of the syringe abutting piece 55 far away from the carrier plate 51, so that the carrier plate 51 is pushed to rotate around the rotating shaft 52 through the syringe abutting piece 55. At this time, the elastic member 54 is compressed, and the shutter 53 is displaced with the rotation of the carrier plate 51, and moves to a position between the light emitting end 31 and the light receiving end 33 of the optical sensor 30 to block the light emitted from the light emitting end 31 to the light receiving end 33, so that the optical sensor 30 generates a signal that the syringe is assembled.

When the syringe of the high-pressure injector is not mounted on the handpiece panel 10, one end of the syringe retaining member 55 away from the carrier plate 51 is in a free state, that is, the elastic member 54 releases the elastic potential energy stored by the compression when the syringe is mounted on the handpiece panel 10, the elastic member 54 returns to the initial state, and the elastic member 54 elastically retains the carrier plate 51 to return the carrier plate 51 to the initial position. At this time, the shutter 53 is also restored to the initial position, not located between the light emitting end 31 and the light receiving end 33 of the light sensor 30, so as to allow the light emitted from the light emitting end 31 to the light receiving end 33 to be blocked, and to prevent the light sensor 30 from generating a signal (i.e., generating a signal that the syringe is not assembled).

The structure can realize the displacement and recovery of the carrier plate 51 and the baffle plate 53 only through the matching of the elastic part 54 and the needle cylinder abutting part 55, so that the optical sensor 30 generates different signals to identify whether the needle cylinder is assembled or not, and the structure is simple, convenient and effective, improves the production and assembly efficiency, is convenient to replace and is durable.

It can be understood that, according to the technical solution of the present invention, the optical sensor 30 and the movable element 50 are disposed on the handpiece panel 10, and the light emitting end 31 of the optical sensor 30 emits light to the light receiving end 33, and the movable element 50 can block or avoid the light emitted from the light emitting end 31 to the light receiving end 33 after the movable element 50 is pushed and removed during assembly of the syringe of the high-pressure injector, so that the optical sensor 30 can generate a signal that the syringe is assembled or a signal that the syringe is not assembled (i.e., a signal that the syringe is not assembled), thereby implementing the syringe identification function. Namely, whether the needle cylinder of the high-pressure injector is assembled or not can be identified, the step of manual inspection is avoided, so that the complex operation in the using process of the high-pressure injector can be reduced, the working time is shortened, the working efficiency is improved, and the high-pressure injector is simpler and more convenient to use.

It will be appreciated that for a high pressure syringe, it will generally include a barrel and a lug on the outer edge of the rear of the barrel for securing the syringe to handpiece faceplate 10.

As shown in fig. 4 to 7, the needle cylinder identification device 100 includes at least two optical sensors 30 and at least two movable members 50, one movable member 50 blocks or yields one light of the optical sensor 30, the needle cylinder has a rotation start position and a rotation stop position in the installation process of the needle cylinder, and when the needle cylinder is located at the rotation stop position, the needle cylinder pushes the two movable members 50 to enable the one movable member 50 to block one light of the optical sensor 30.

In this embodiment, the end of each syringe supporting member 55 away from the corresponding carrier plate 51 is distributed on the rotation path of the syringe lug, and when the syringe rotates to the rotation stop position, the syringe lug simultaneously supports and presses the two syringe supporting members 55, at this time, the syringe lug simultaneously pushes the two carrier plates 51 to rotate around the corresponding rotation shafts 52 through the two syringe supporting members 55, and accordingly, the two blocking plates 53 on the two carrier plates 51 also rotate around the corresponding rotation shafts 52 to form blocking between the light emitting end 31 and the light receiving end 33 of the corresponding optical sensor 30, that is, the light of the two optical sensors 30 is blocked.

It can be understood that, when the light of one optical sensor 30 is blocked, the system recognizes that the syringe is installed on the handpiece panel 10, further, when the light of another optical sensor 30 is also blocked, the system recognizes that the syringe on the handpiece panel 10 is installed in place, at this time, the installation stability of the syringe is higher, and the time for the system to perform the push rod propelling operation is more suitable, so that the recognition performance of the syringe recognition device 100 is more excellent, the push rod can be effectively and smoothly propelled, the operation safety of related structures is guaranteed, and the precision of the high-pressure injector is guaranteed.

When the needle cylinder is located at the rotation start position, the needle cylinder avoids two movable pieces 50, so that one movable piece 50 avoids light of one optical sensor 30.

It can be understood that when the syringe is located or rotated back to the rotation start position again, the syringe lug avoids the end of each syringe retaining member 55 far from the corresponding carrier plate 51, i.e. the syringe lug and the end of each syringe retaining member 55 far from the corresponding carrier plate 51 are not in contact, at this time, the two retaining plates 53 are not rotated or are all restored to the initial positions, i.e. the two retaining plates 53 respectively give way to the light emitted from the light emitting end 31 to the light receiving end 33 of the corresponding light sensor 30, and at this time, the system only recognizes that the syringe is not installed on the handpiece panel 10 or that the syringe is removed.

By the arrangement, the situation that when the single optical sensor 30 is matched with the single movable part 50 in the needle cylinder dismantling process, the needle cylinder abutting part 55 is not contacted with the needle cylinder lug, but the needle cylinder is still connected to the handpiece panel 10 can be effectively avoided, so that the accuracy of the system for judging whether the needle cylinder on the handpiece panel 10 is installed or not is effectively improved, the time for the system to execute the push rod returning operation is more suitable, the operation of related structures is safer, and the precision of a high-pressure injector is not damaged.

When the needle cylinder is located between the rotation starting position and the rotation stopping position, the needle cylinder avoids one of the movable members 50 and pushes the other of the movable members 50, so that one of the movable members 50 blocks the light of one of the optical sensors 30, and the other of the movable members 50 avoids the light of one of the optical sensors 30.

It can be understood that when the needle cylinder is located between the rotation start position and the rotation stop position, the needle cylinder lug only abuts and presses one of the two needle cylinder abutting members 55 and avoids the other of the two needle cylinder abutting members 55. At this time, one baffle 53 is located between the light emitting end 31 and the light receiving end 33 of the corresponding optical sensor 30 to form a blocking, the other baffle 53 gives way to the light emitted from the light emitting end 31 to the light receiving end 33 of the corresponding optical sensor 30, the system recognizes that the syringe mounting process or the syringe dismounting process exists on the handpiece panel 10, and the system remains still without any operation, so as to avoid damage to related components due to misoperation, thereby ensuring the precision of the high-pressure syringe.

As shown in fig. 3, 4 and 5, a mounting groove 11 is formed in one surface of the head panel 10, and the movable member 50 and the optical sensor 30 are mounted in the mounting groove 11.

In this embodiment, the movable member 50 further includes a shaft pressing block 56, the shaft pressing block 56 is fixedly disposed in the assembling groove 11 and has a first shaft hole 561, correspondingly, a second shaft hole (not shown) is disposed in the assembling groove 11, and the two shaft holes are disposed oppositely and respectively used for accommodating two ends of the rotating shaft 52. At this time, the rotation shaft 52 is rotatable in the two-axis hole, so that the carrier plate 51 and the shutter 53 can rotate around the axis of the rotation shaft 52, thereby displacing the shutter 53 and blocking or avoiding the light of the optical sensor 30. Specifically, the shaft pressing block 56 and the optical sensor 30 may be fixed to the assembly groove 11 by a snap connection, an adhesive connection, a screw connection, or other effective connection.

It will be appreciated that the provision of the mounting slot 11 allows the syringe identification device 100 to be more compact and efficient, not only for ease of manufacture, but also for low resource consumption. Moreover, the needle cylinder recognition device 100 is simple in structure, convenient to install, convenient to use and high in practicability.

As shown in fig. 6 and 7, the handpiece panel 10 further has a through hole 13 penetrating through two surfaces of the handpiece panel 10, a through hole 15 communicating with the assembling groove 11 is formed in a side wall of the through hole 13, the syringe retaining member 55 is partially accommodated in the through hole 15, and one end of the syringe retaining member 55 facing away from the carrier plate 51 is exposed from the through hole 15.

In this embodiment, the through-hole 13 is used for mounting a cylinder of a high-pressure injector. When the syringe is assembled, the syringe and the syringe lug rotate in the through hole 13, and the syringe lug abuts against the end of the syringe abutting piece 55 protruding from the sidewall of the through hole 13 during the rotation process, so that the syringe abutting piece 55 moves in the through hole 15 towards the assembling slot 11, and the carrier plate 51 and the baffle 53 are pushed to displace in the assembling slot 11, and the light of the optical sensor 30 is blocked, so that the optical sensor 30 generates a signal that the syringe is assembled. The movement of the relevant parts during the syringe removal process is contrary to the assembly process and will not be described in detail herein.

It can be understood that such a structural arrangement can effectively improve the motion stability of the syringe retaining member 55, so that the motion cooperation between the syringe retaining member 55 and the syringe lug is more excellent, thereby effectively improving the recognition accuracy of the syringe recognition device 100.

As shown in fig. 3 and 5, the movable member 50 further includes a sealing ring 57, and the sealing ring 57 is sleeved on the syringe retaining member 55 and blocks the through hole 15.

In this embodiment, the movable member 50 further includes a pressing plate 58, the pressing plate 58 is fixedly disposed in the assembly slot 11, and a through hole 581 for the needle cylinder holding member 55 to pass through is formed in the middle of the pressing plate 58. The sealing ring 57 includes a seat 571 and a cylinder 572 extending from the seat 571, the seat 571 is substantially in a ring shape, and is sleeved on the syringe supporting member 55 and disposed around the through hole 15, and is pressed by the pressing plate 58 on the side wall of the assembling groove 11 close to the through hole 15. The barrel 572 is a tubular structure with two ends penetrating through, and is sleeved on the syringe supporting member 55 and extends into the through hole 15. It can be understood that the sealing ring 57 is disposed to effectively seal the through hole 15, so as to prevent the liquid medicine or other impurities from entering the movable member 50 and the optical sensor 30 to affect or even damage the movable member 50 and the optical sensor 30, thereby effectively ensuring the identification accuracy and the service life of the syringe identification device 100.

Specifically, the pressing plate 58 can be fixed to the assembly groove 11 by a snap connection, an adhesive connection, a screw connection, or other effective connection.

As shown in fig. 6 and 7, the needle cylinder retainer 55 is provided with a guide slope at an end facing away from the carrier plate 51.

It can be understood that the arrangement of the guide slope can play a role in buffering and guiding the abutting contact process between the needle cylinder lug and the needle cylinder abutting piece 55, thereby effectively avoiding the deformation and even damage of parts caused by poor extrusion between structures, further effectively ensuring the function of related structures, prolonging the service life of the needle cylinder identification device 100, and simultaneously effectively ensuring the identification accuracy of the needle cylinder identification device 100.

As shown in fig. 2, the syringe identification apparatus 100 further includes a head cover plate 70, the head cover plate 70 covers the surface of the head panel 10 provided with the assembly groove 11 and covers the assembly groove 11, and an abdicating opening 71 for the push rod of the high-pressure injector to pass through is formed at a position of the head cover plate 70 facing the through opening 13.

In this embodiment, the head cover plate 70 has two relief openings 71, the head panel 10 has two through openings 13, and one relief opening 71 is respectively communicated with one through opening 13. Moreover, the surface of the handpiece cover plate 70 facing the handpiece panel 10 is further provided with an annular limiting rib 73, and an annular limiting rib 73 is arranged around a position-giving opening 71, is accommodated in the corresponding through opening 13 and abuts against the syringe, so as to improve the assembly stability of the syringe.

It can be appreciated that the head cover plate 70 can protect the optical sensor 30 and the movable member 50 to extend the lifetime of the device 100. In addition, the arrangement of the annular limiting rib 73 can further improve the stability of the needle cylinder during rotation and assembly, thereby further effectively improving the working accuracy and the practicability of the needle cylinder identification device 100.

Specifically, the head cover 70 can be fixed to the head panel 10 by a snap connection, an adhesive connection, a screw connection, or other effective connection.

It should be noted that, as shown in fig. 2 and 4, in the present embodiment, the handpiece panel 10 includes two syringe assembly units, each syringe assembly unit is provided with a through hole 13 and two assembly slots 11, the through hole 13 is used for assembling a syringe, and the assembly slots 11 are used for assembling the optical sensor 30 and the movable element 50. The positional relationship, the connection relationship, and/or the assembly relationship of these components are as described above, and are not described in detail herein. Moreover, it is to be understood that in other embodiments, the number of components included in the syringe identification apparatus 100 may be adjusted accordingly according to the actual situation.

The present invention further provides a high pressure injector, which includes the syringe identification apparatus 100 as described above, and the specific structure of the syringe identification apparatus 100 refers to the foregoing embodiments, and since the high pressure injector adopts all the technical solutions of all the foregoing embodiments, the high pressure injector at least has all the beneficial effects brought by the technical solutions of the foregoing embodiments, and details are not repeated herein.

the system judges the state of the light sensor 30;

when the system judges that the state of the optical sensor 30 is blocked, the push rod is controlled to move forward to exhaust;

when the system determines that the optical sensor 30 is on, the push rod is controlled to retreat and retreat.

When the high-pressure injector comprises at least two light sensors 30, the control method of the high-pressure injector comprises the following steps:

the system judges the states of the two optical sensors 30;

when the system judges that the states of the two optical sensors 30 are both blocked, the push rod is controlled to advance to exhaust;

when the system judges that the states of the two optical sensors 30 are both on, the push rod is controlled to retreat and retreat;

when the system determines that one of the two light sensors 30 is blocked, it remains stationary.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all equivalent structural changes made by using the contents of the present specification and the drawings, or any other related technical fields, which are directly or indirectly applied to the present invention, are included in the scope of the present invention.

Claims

1. A syringe identification device for use with a high pressure injector, comprising:

a handpiece panel;

the moving part is arranged on the handpiece panel and is close to the optical sensor, a needle cylinder of the high-pressure injector is rotatably arranged on the handpiece panel, and the edge of the needle cylinder pushes or avoids the moving part, so that the moving part blocks or abdicates the light emitted from the light emitting end to the light receiving end;

the moving part includes:

a carrier plate;

the baffle is fixedly arranged at one end, far away from the rotating shaft, of the carrier plate, and rotates around the rotating shaft to block or give way the light of the optical sensor;

the moving part further includes:

one end of the needle cylinder abutting piece is fixedly arranged on one side of the carrier plate, which is far away from the elastic piece, and the other end of the needle cylinder abutting piece extends towards the direction, which is far away from the carrier plate;

an assembly groove is formed in one surface of the handpiece panel, and the moving part and the optical sensor are assembled in the assembly groove;

the machine head panel is also provided with a through hole penetrating through two surfaces of the machine head panel, the side wall of the through hole is provided with a through hole communicated with the assembling groove, the needle cylinder abutting piece is partially accommodated in the through hole, and one end of the needle cylinder abutting piece, which deviates from the carrier plate, is exposed out of the through hole;

the needle cylinder recognition device comprises at least two optical sensors and at least two moving parts, one moving part blocks or yields one optical sensor's light, the needle cylinder has rotation initial position and rotation stop position, the needle cylinder in promote two when rotating stop position the moving part makes one the moving part blocks one optical sensor's light.

2. The device for identifying a syringe as claimed in claim 1, wherein the movable member further comprises a sealing ring, and the sealing ring is sleeved on the syringe retaining member and blocks the through hole.

3. A high pressure injector comprising the syringe identification device of any one of claims 1-2.

4. A method of controlling a high pressure injector as claimed in claim 3, comprising the steps of:

the system judges the state of the optical sensor;

5. The method of claim 4, wherein the high pressure injector includes at least two light sensors, the method comprising the steps of:

the system judges the states of the two optical sensors;

and when the system judges that the states of the two optical sensors are blocked, the push rod is controlled to advance to exhaust.