CN215840944U

CN215840944U - Novel syringe for cardiac surgery

Info

Publication number: CN215840944U
Application number: CN202120195413.5U
Authority: CN
Inventors: 周文杰
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-01-25
Filing date: 2021-01-25
Publication date: 2022-02-18
Anticipated expiration: 2031-01-25

Abstract

The utility model discloses a novel injector for cardiac surgery, which comprises a shell, wherein an injector shell is arranged in the shell, a piston is arranged in the injector shell, the surface of the piston is fixedly connected with a piston rod, one end of the piston rod, far away from the piston, is fixedly connected with a push handle, one end of the injector shell is provided with a needle head, a puncture needle is embedded in the needle head, and the upper end and the lower end of the interior of the shell are both provided with threaded rods. According to the automatic injection device, the two positioning rods on the injector shell are inserted into the positioning cylinder, the motor is started, the motor drives the threaded rod to rotate, so that the two connecting blocks drive the push plate to move at a constant speed, the push plate drives the second fixing piece to push the piston rod to move, automatic injection is achieved, the pushing speed is more stable, the safety is higher, the electric push rod drives the arc-shaped support to move upwards until the positioning rods are ejected out of the positioning cylinder, and therefore the injector can be taken out and replaced conveniently.

Description

Novel syringe for cardiac surgery

Technical Field

The utility model relates to the technical field of injectors, in particular to a novel injector for cardiac surgery.

Background

The syringe is a common medical appliance, and as early as the 15 th century, kathler, italian, proposed the principle of the syringe, mainly using a needle to extract or inject a gas or liquid, and the syringe can also be used for medical devices, containers, and scientific instruments such as those used in chromatography, to inject through a rubber septum;

most of the existing syringes inject the liquid medicine in the syringe into a human body by pushing the piston by hand, when the syringes push the liquid medicine, the pushing speed of the syringes is not stable, the safety factor is low, and particularly attention is needed in cardiac surgery.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a novel injector for cardiac surgery.

In order to achieve the purpose, the utility model adopts the following technical scheme: a novel injector for cardiac surgery comprises a shell, wherein an injector shell is arranged in the shell, a piston is arranged in the injector shell, a piston rod is fixedly connected to the surface of the piston, a push handle is fixedly connected to one end, away from the piston, of the piston rod, a needle head is arranged at one end of the injector shell, a puncture needle is embedded in the needle head, threaded rods are arranged at the upper end and the lower end of the inner part of the shell, a fixed plate is vertically and fixedly connected to the positions, corresponding to one end of the threaded rods, of the inner top wall and the inner bottom wall of the shell, connecting blocks are sleeved on the two threaded rods in a threaded manner, a push plate is fixedly connected between the two connecting blocks, a positioning rod is fixedly connected to the bottom of the injector shell, an electric push rod is fixedly connected to the bottom of the shell, and a driving end of the electric push rod penetrates through the bottom plate fixedly connected to the shell, the top of bottom plate fixedly connected with arc support.

As a further description of the above technical solution:

the equal fixedly connected with location section of thick bamboo in the position that the interior diapire of shell and two locating levers correspond, and in the locating lever embedding location section of thick bamboo.

As a further description of the above technical solution:

the outer surface of push pedal runs through and is provided with first mounting, the surface of pushing away the handle is provided with the second mounting with first mounting assorted, and first mounting screwed connection is in the second mounting.

As a further description of the above technical solution:

the top of shell is provided with places the mouth, two slide rails of interior diapire fixedly connected with of shell, two the slide rail is located the both sides of threaded rod, and the top sliding connection of slide rail has the slider.

As a further description of the above technical solution:

the two sides of the bottom of the push handle are fixedly connected with limiting rods, the top of the sliding block is provided with a slot, and the bottom of the limiting rod is embedded into the slot.

As a further description of the above technical solution:

and a joint rod is connected between the two sliding blocks.

As a further description of the above technical solution:

two all nested bearings have between the one end of threaded rod and the fixed plate of two correspondences, the outer wall of shell is kept away from two motors of one side fixedly connected with of syringe casing to the drive end of motor and the tip fixed connection of two threaded rods.

As a further description of the above technical solution:

the opening has all been seted up in the both sides center department of shell outer wall, the arc support is located between two locating levers.

The utility model has the following beneficial effects:

1. this novel syringe is used in cardiac operation, through the threaded rod that sets up, the connecting block, the push pedal, the second mounting, locating lever and a location section of thick bamboo, insert a location section of thick bamboo with two locating levers on the syringe casing in to fix the syringe casing, starter motor, thereby the motor drives the threaded rod rotation and makes two connecting blocks drive the push pedal uniform velocity and move, thereby make the push pedal drive the second mounting and promote the piston rod and remove, accomplish the injection automatically, propelling movement speed is more steady, and the security is higher.

2. This novel syringe is used in cardiac operation when needs replacement syringe, starts electric putter, and electric putter drives arc support rebound to jack-up syringe casing makes progress, until with the ejecting location section of thick bamboo of locating lever, thereby can take out the syringe and accomplish the replacement, it is more convenient.

Drawings

Fig. 1 is a schematic overall structure diagram of a novel injector for cardiac surgery according to the present invention;

FIG. 2 is an enlarged view of the novel injector for cardiac surgery at A in FIG. 1;

fig. 3 is a side view of the novel injector for cardiac surgery according to the present invention.

Illustration of the drawings:

1. a housing; 2. a syringe housing; 3. a piston; 4. a piston rod; 5. a push handle; 6. a needle head; 7. puncturing needle; 8. positioning a rod; 9. a positioning cylinder; 10. a threaded rod; 11. connecting blocks; 12. pushing the plate; 13. a second fixing member; 14. a fixing plate; 15. a first fixing member; 16. an electric push rod; 17. a base plate; 18. an arc-shaped bracket; 19. a placement port; 20. a slide rail; 21. a slider; 22. a limiting rod; 23. a connecting rod.

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.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, one embodiment of the present invention is provided: a novel injector for cardiac surgery comprises a shell 1, an injector shell 2 is arranged inside the shell 1, a piston 3 is arranged inside the injector shell 2, a piston rod 4 is fixedly connected to the surface of the piston 3, a push handle 5 is fixedly connected to one end, far away from the piston 3, of the piston rod 4, a needle head 6 is arranged at one end of the injector shell 2, a puncture needle 7 is embedded into the needle head 6, threaded rods 10 are arranged at the upper end and the lower end of the inside of the shell 1, a fixed plate 14 is vertically and fixedly connected to the positions, corresponding to one end of the threaded rods 10, of the inner top wall and the inner bottom wall of the shell 1, connecting blocks 11 are respectively sleeved on the two threaded rods 10 in a threaded manner, a push plate 12 is fixedly connected between the two connecting blocks 11, a positioning rod 8 is fixedly connected to the bottom of the injector shell 2, an electric push rod 16 is fixedly connected to the bottom of the shell 1, and a driving end of the electric push rod 16 penetrates through a bottom plate 17 fixedly connected to the shell 1, the top of the bottom plate 17 is fixedly connected with an arc-shaped bracket 18.

The inner bottom wall of the shell 1 is fixedly connected with positioning cylinders 9 at positions corresponding to the two positioning rods 8, the positioning rods 8 are embedded into the positioning cylinders 9, and the positioning rods 8 are embedded into the positioning cylinders 9, so that the injector shell 2 is fixed in the shell 1; the outer surface of the push plate 12 is provided with a first fixing piece 15 in a penetrating manner, the outer surface of the push handle 5 is provided with a second fixing piece 13 matched with the first fixing piece 15, the first fixing piece 15 is connected in the second fixing piece 13 in a spiral manner, the first fixing piece 15 and the second fixing piece 13 are connected in a spiral manner, so that the push handle 5 and the first fixing piece 15 can be fixed, and the piston rod 4 can be stably driven to move when the push plate 12 moves; the top of the shell 1 is provided with a placing opening 19, the injector shell 2 is convenient to mount or take out from the placing opening 19, the inner bottom wall of the shell 1 is fixedly connected with two sliding rails 20, the two sliding rails 20 are positioned at two sides of the threaded rod 10, the top of the sliding rail 20 is connected with a sliding block 21 in a sliding manner, and the push handle 5 is connected with the sliding rails 20 in a sliding manner through the sliding block 21; both sides of the bottom of the push handle 5 are fixedly connected with limit rods 22, the top of the sliding block 21 is provided with a slot, the bottom of the limit rods 22 is embedded into the slot, the limit rods 22 are connected with the sliding block 21 in an embedded mode through the slot, and under the matching of the sliding block 21 and the sliding rail 20, the push plate 12 can stably push the piston rod 4 to move, so that the situation that the piston rod 4 shakes left and right when pushed to cause deviation in injection is avoided; an engaging rod 23 is connected between the two sliding blocks 21, so that the two sliding blocks 21 can slide simultaneously; bearings are nested between one ends of the two threaded rods 10 and the two corresponding fixing plates 14, two motors are fixedly connected to one side, away from the injector shell 2, of the outer wall of the shell 1, the driving ends of the motors are fixedly connected with the end parts of the two threaded rods 10, and the threaded rods 10 can rotate through the motors and the bearings; the opening has all been seted up in the both sides center department of shell 1 outer wall, and the left opening of shell 1 can make electric putter 16 drive syringe casing 2 space that has the removal in the time of the rebound, and the opening on shell 1 right side makes things convenient for the staff to stretch into in shell 1, in screwing into second mounting 13 with first mounting 15 spiral shell, arc support 18 is located between two locating levers 8.

The working principle is as follows: when the novel injector for cardiac surgery is used, when the injector is installed, the piston rod 4 is firstly pushed to a position close to the needle head 6, then the injector shell 2 is placed into the shell 1 from the placing opening 19, the two positioning rods 8 are inserted into the positioning barrel 9, the two limiting rods 22 are inserted into the slots on the two sliding blocks 21 simultaneously, so that the injector shell 2 is fixed, then the puncture needle 7 is installed into the needle head 6, at the moment, the motor is started, the motor drives the threaded rod 10 to rotate until the first fixing piece 15 is driven to move to the position of the second fixing piece 13 at the position of the push handle 5, the first fixing piece 15 is screwed into the second fixing piece 13, so that the push handle 5 and the first fixing piece 15 are fixed, the motor is started, when the motor drives the threaded rod 10 to rotate so that the connecting block 11 moves rightwards, at the piston rod 4 can be pulled rightwards at the moment, the puncture needle 7 can be inserted into a liquid medicine bottle to be sucked, piston rod 4 moves right and realizes sucking the liquid medicine in the medicine bottle in syringe casing 2, prick pjncture needle 7 into in the human body, then the motor is reverse rotation again, realize that connecting block 11 drives push pedal 12 and moves left, thereby realize promoting piston rod 4 at the uniform velocity, realize automatic injection, it is more steady compared in manual push, the security is higher, when needs replacement syringe, only need open electric putter 16, electric putter 16 drives arc support 18 and upwards jacks up syringe casing 2, until with 8 ejecting location section of thick bamboo 9 of locating lever, thereby take out syringe whole from placing mouth 19, accomplish the replacement, and is more convenient.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.

Claims

1. A novel injector for cardiac surgery comprises a shell (1), and is characterized in that: the syringe comprises a shell (1), a syringe shell (2) is arranged in the shell (1), a piston (3) is arranged in the syringe shell (2), a piston rod (4) is fixedly connected to the surface of the piston (3), a push handle (5) is fixedly connected to one end, far away from the piston (3), of the piston rod (4), a needle head (6) is arranged at one end of the syringe shell (2), a puncture needle (7) is embedded into the needle head (6), threaded rods (10) are arranged at the upper end and the lower end of the inner portion of the shell (1), a fixing plate (14) is vertically and fixedly connected to the position, corresponding to one end of the threaded rod (10), of the inner top wall and the inner bottom wall of the shell (1), connecting blocks (11) are sleeved on the two threaded rods (10) in a threaded manner, a push plate (12) is fixedly connected between the two connecting blocks (11), and a positioning rod (8) is fixedly connected to the bottom of the syringe shell (2), the bottom fixedly connected with electric putter (16) of shell (1), and the drive end of electric putter (16) runs through shell (1) fixedly connected with bottom plate (17), the top fixedly connected with arc support (18) of bottom plate (17).

2. The novel syringe for cardiac surgery as defined in claim 1, wherein: the inner bottom wall of the shell (1) is fixedly connected with positioning cylinders (9) in positions corresponding to the two positioning rods (8), and the positioning rods (8) are embedded into the positioning cylinders (9).

3. The novel syringe for cardiac surgery as defined in claim 1, wherein: the outer surface of the push plate (12) is provided with a first fixing part (15) in a penetrating mode, the outer surface of the push handle (5) is provided with a second fixing part (13) matched with the first fixing part (15), and the first fixing part (15) is in threaded connection with the second fixing part (13).

4. The novel syringe for cardiac surgery as defined in claim 1, wherein: the top of shell (1) is provided with places mouth (19), the interior diapire fixedly connected with of shell (1) has two slide rails (20), two slide rail (20) are located the both sides of threaded rod (10), and the top sliding connection of slide rail (20) has slider (21).

5. A novel syringe for cardiac surgery as defined in claim 1 or 4, wherein: the two sides of the bottom of the push handle (5) are fixedly connected with limit rods (22), the top of the sliding block (21) is provided with a slot, and the bottom of each limit rod (22) is embedded into the slot.

6. The novel syringe for cardiac surgery as defined in claim 5, wherein: a joint rod (23) is connected between the two sliding blocks (21).

7. The novel syringe for cardiac surgery as defined in claim 1, wherein: two all nested bearings have between the one end of threaded rod (10) and two fixed plates (14) that correspond, the outer wall of shell (1) is kept away from two motors of one side fixedly connected with of syringe casing (2) to the drive end of motor and the tip fixed connection of two threaded rods (10).

8. The novel syringe for cardiac surgery as defined in claim 1, wherein: the opening has all been seted up in the both sides center department of shell (1) outer wall, arc support (18) are located between two locating levers (8).